Film sealing instrument

Abstract

The utility model discloses a film sealing instrument, which belongs to the technical field of film sealing and comprises a base, a discharging component, a hot-pressing component, a film clamping component, a film shearing component, a base and a transmission component, and the discharging component, the hot-pressing component, the film clamping component, the film shearing component, the base and the transmission component are mounted on the base. The discharging assembly is used for releasing a rolled film material, the film clamping assembly is used for dragging the film material released by the discharging assembly to the hot pressing assembly under the driving of the transmission assembly, the film shearing assembly is used for shearing the film material matched with the base, and the hot pressing assembly is used for hot pressing the sheared film material on the base. According to the film sealing instrument provided by the utility model, due to the arrangement of the transmission assembly and the film clamping assembly, the film material can be pulled out from the discharging roller in a traction manner and is driven to the film sealing instrument at a hot pressing station, so that the width of the film material can be matched with the actual width of a product to be sealed, and the film material does not need to be specially widened; and the waste of the film material is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of film sealing, and particularly relates to a film sealer. Background Art

[0002] A film sealing device is a device used to connect a film to the surface of a product to be film-sealed by means of hot pressing, so as to seal the surface of the product to be film-sealed with the film.

[0003] In the prior art, the film sealing device mainly uses two rollers for feeding and winding. However, this feeding and winding method has certain disadvantages: since the winding roller is used for winding, and it is also necessary to ensure that the film does not break during winding, the width dimension of the film must be greater than the actual use width, resulting in the need to reserve an additional sufficient margin for the width of the film, thus causing waste of the film usage.

[0004] Therefore, there is an urgent need to propose a film sealer that pulls the film material out from the feeding roller in a traction manner and drives it to the hot pressing station, so that the width of the film material can be fed to fit the actual width of the product to be film-sealed, thereby eliminating the need to specifically widen the film material and effectively reducing waste of the film material. Summary of the Invention

[0005] Aiming at the problem that the film sealing device in the prior art requires a large width margin for the film material, the purpose of the utility model is to provide a film sealer to at least partially solve the above problems.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A film sealer includes a base and a feeding component, a hot pressing component, a film clamping component, a film cutting component, a base and a transmission component installed on the base; the feeding component is used to release the film material it winds, the film clamping component is used to traction the film material released by the feeding component to the hot pressing component under the drive of the transmission component, the film cutting component is used to cut the film material adapted to the base, and the hot pressing component is used to hot press the cut film material on the base.

[0008] In some preferred embodiments, the base is slidably connected to the base in the horizontal direction, and the base is fixedly connected to the output end of the transmission component; the film cutting component is slidably connected to the base in the horizontal direction, a long strip-shaped traction ring is fixedly connected to the film clamping component, and a traction rod adapted to the traction ring is fixedly connected to the film cutting component.

[0009] In some preferred embodiments, a suction cup and a negative pressure generating device are further included. The suction cup is fixedly connected to the hot pressing assembly, and the adsorption surface of the suction cup protrudes from the bottom surface of the hot pressing assembly. The negative pressure generating device is fixedly connected to the base, and each suction cup is connected to the negative pressure generating device through a pipeline.

[0010] In some preferred embodiments, the hot pressing assembly includes a hot pressing frame, a substrate, a film pressing plate, a heating plate, a bearing seat, and a lifting mechanism; the substrate is slidably connected to the hot pressing frame in the height direction, the lifting mechanism is fixed on the hot pressing frame, and its output end is connected to the substrate; the film pressing plate is located below the substrate and is slidably connected to the substrate in the height direction. An elastic member is also connected between the film pressing plate and the substrate, and the elastic member is used to provide an elastic force for separating the film pressing plate and the substrate from each other; the heating plate is fixed on one side of the top surface of the film pressing plate; the bearing seat is fixedly connected to the hot pressing frame and is located below the film pressing plate.

[0011] In some preferred embodiments, the film clamping assembly includes a fixing member, a movable member, an elastic reset member, and an electromagnet; the fixing member is slidably connected to the base, the movable member is pivotally connected to the fixing member, and a gap for the film material to pass through is reserved between the fixing member and the movable member; clamping plates are fixedly connected to both the movable member and the fixing member; the elastic reset member is connected between the movable member and the fixing member, and the elastic reset member is used to provide an elastic force for making the two clamping plates approach and contact each other; the electromagnet is fixedly connected to the fixing member, and the electromagnet is used to provide a thrust force that can overcome the elastic force to the movable member after being energized, so that the two clamping plates are separated from each other.

[0012] In some preferred embodiments, a pressing groove is formed on one of the clamping plates, and a pressing rib adapted to the pressing groove is correspondingly arranged on the other clamping plate.

[0013] In some preferred embodiments, the film cutting assembly includes a cutting seat, a cutting knife, and an elastic support member. The cutting knife is slidably connected to the cutting seat in the height direction, and the elastic support member is connected between the cutting knife and the cutting seat. The elastic support member is used to provide an elastic force for separating the cutting knife from the cutting seat.

[0014] In some preferred embodiments, a film pressing assembly fixedly connected to the film cutting assembly is further included. The film pressing assembly includes a film pressing seat, a roller, a roller seat, and a pressing spring; the roller is rotatably connected to the roller seat, the roller seat is slidably connected to the film pressing seat in the height direction, and the pressing spring is connected between the film pressing seat and the roller seat. The pressing spring is used to provide an elastic force for pressing the roller against the film pressing seat.

[0015] In some preferred embodiments, the film pressing assembly further includes a guide plate and a bearing plate. Two ends of the guide plate are fixedly connected to the two roller seats respectively. The bearing plate is fixedly connected to the film pressing seat. A gap for the film material to pass through is reserved between the bearing plate and the guide plate.

[0016] In some preferred embodiments, it further includes a housing fixedly connected to the base. The hot pressing assembly, the film clamping assembly, the film cutting assembly, the base and the transmission assembly are all located inside the housing. An opening for the base to enter and exit is provided on the housing. A hatch is pivotally connected at the opening. A reset member is connected between the hatch and the housing. The reset member is used to keep the hatch in a normally closed state.

[0017] By adopting the above technical solutions, the beneficial effects of the present utility model are as follows: The film sealing instrument provided by the present utility model, through the arrangement of the transmission assembly and the film clamping assembly, enables the film material to be pulled out from the feeding roller and driven to the film sealing station of the hot pressing station in a traction manner. In this way, the width of the film material can be fed to fit the actual width of the product to be film-sealed, so that it is not necessary to specifically widen the film material, effectively reducing the waste of the film material. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the film sealing instrument in the present utility model.

[0019] Figure 2 It is a front view of the film sealing instrument in the present utility model.

[0020] Figure 3 It is a rear view of the film sealing instrument in the present utility model.

[0021] Figure 4 It is a schematic structural diagram of the base and the transmission assembly, film clamping assembly, base, film cutting assembly and film pressing assembly thereon in the present utility model.

[0022] Figure 5 It is a schematic structural diagram of the base and the transmission assembly, base and hot pressing assembly thereon in the present utility model.

[0023] Figure 6 It is a front view of the base and the transmission assembly, base and hot pressing assembly thereon in the present utility model.

[0024] Figure 7 It is a left view of the base and the transmission assembly, base and hot pressing assembly thereon in the present utility model.

[0025] Figure 8 It is a partial structural schematic diagram of the hot pressing assembly in the present utility model.

[0026] Figure 9This is a schematic structural diagram of the base, the transmission component and the film clamping component thereon in the present utility model.

[0027] Figure 10 This is a left view of the base, the transmission component and the film clamping component thereon in the present utility model.

[0028] Figure 11 This is a schematic structural diagram of the film clamping component in the present utility model.

[0029] Figure 12 This is another schematic structural diagram of the film clamping component in the present utility model.

[0030] Figure 13 This is a top view of the film clamping component in the present utility model.

[0031] Figure 14 This is a front view of the film clamping component in the present utility model.

[0032] Figure 15 This is a schematic structural diagram of the base, the transmission component and the film cutting component thereon in the present utility model.

[0033] Figure 16 This is a schematic structural diagram of the film cutting component in the present utility model.

[0034] Figure 17 This is a schematic structural diagram of the base, the transmission component, the film cutting component and the film pressing component thereon in the present utility model.

[0035] Figure 18 This is a schematic structural diagram of the film cutting component and the film pressing component in Embodiment 2 of the present utility model.

[0036] Figure 19 This is a front view of the film cutting component and the film pressing component in Embodiment 2 of the present utility model.

[0037] Figure 20 This is a schematic structural diagram of the film cutting component, the film pressing component, the guiding plate and the bearing plate thereon in Embodiment 2 of the present utility model.

[0038] Figure 21 For Figure 20 Another directional schematic diagram of the shown structure.

[0039] Figure 22 This is a schematic structural diagram of Embodiment 3 of the present utility model.

[0040] Figure 23 This is a schematic structural diagram of Embodiment 3 of the present utility model in another direction.

[0041] In the figure: 1 - base; 2 - housing; 3 - hatch; 5 - control panel; 6 - power supply; 7 - fan; 200 - material feeding assembly, 201 - material feeding roller, 202 - material feeding bracket; 300 - hot pressing assembly, 301 - hot pressing frame, 302 - substrate, 303 - guiding shaft, 304 - linear bearing, 305 - lifting motor, 306 - swing arm, 307 - connecting rod, 308 - connecting block, 309 - film pressing plate, 310 - hot pressing guiding column, 311 - elastic member, 312 - heating plate, 313 - wire threading pipe; 400 - film clamping assembly, 401 - fixing member, 402 - movable member, 403 - elastic reset member, 404 - electromagnet, 405 - lower clamping plate, 406 - upper clamping plate, 407 - spring seat, 408 - film clamping bracket, 409 - drag chain, 410 - guiding block; 500 - transmission assembly, 501 - transmission motor, 502 - transmission lead screw, 503 - transmission nut, 504 - first slide rail, 505 - first slider, 506 - bottom plate; 600 - base; 700 - film cutting assembly, 701 - cutting base, 702 - cutter, 703 - elastic support member, 704 - second slide rail, 705 - second slider, 706 - traction ring, 707 - pulling column, 708 - fastening screw; 800 - film pressing assembly, 801 - film pressing base, 802 - roller seat, 803 - roller, 804 - film pressing spring, 805 - film pressing guiding column, 806 - guiding plate, 807 - bearing plate, 808 - pressing rod, 809 - receiving plate, 810 - notch; 900 - suction cup; 100 - negative pressure generating device; 110 - guiding plate; 120 - sensor. Detailed implementation manners

[0042] The following further describes the detailed implementation manners of the present utility model in conjunction with the accompanying drawings. It should be noted here that the description of these implementation manners is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various implementation manners of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is the description of the structure of the present utility model based on the accompanying drawings, and is only for the convenience of describing the present utility model simply, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0044] For the "first" and "second" in this technical solution, they are only the appellation distinctions for the same or similar structures, or the corresponding structures with similar functions, and do not represent the importance ranking of these structures, nor do they have an order, or compare sizes, or other meanings.

[0045] In addition, unless otherwise clearly defined and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two structures. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the general idea of the present utility model and in connection with the specific circumstances of the context of this solution.

[0046] Embodiment 1

[0047] A film sealing instrument, as Figures 1-4 shown, includes a base 1 and a film feeding assembly 200, a hot pressing assembly 300, a film clamping assembly 400, a transmission assembly 500, a base 600, and a film cutting assembly 700 installed on the base 1.

[0048] The base 1 is generally in a plate-like structure, and a plurality of support feet 101 are usually fixedly installed on one side of its bottom surface. The film feeding assembly 200 is used to release the film material it winds up. The film feeding assembly 200 includes a film feeding roller 201, which is rotatably connected to a film feeding bracket 202, and the film feeding bracket 202 is fixed to the rear side of the top surface of the base 1 by screws.

[0049] As Figures 5-8 shown, the hot pressing assembly 300 is fixedly arranged on the front side of the top surface of the base 1. The hot pressing assembly 300 includes a hot pressing frame 301, a base plate 302, a film pressing plate 309, a heating plate 312, a pressure bearing seat 15, and a lifting mechanism.

[0050] The hot pressing frame 301 is a frame-like structure formed by splicing plates. It includes a top plate and two side plates. The two side plates are both vertical and fixedly arranged on the left and right sides of the front part of the top surface of the base 1 relatively parallel to each other, and the top plate is horizontally fixed on the top of the two side plates.

[0051] The base plate 302 is arranged horizontally, and the base plate 302 is located below one side of the top plate in the hot pressing frame 301. The base plate 302 is slidably connected to the hot pressing frame 301 in the height direction. For example, a guide shaft 303 is fixed on one side of the top surface of the base plate 302, and a linear bearing 304 used in cooperation with the guide shaft 303 is fixedly installed on the corresponding top plate in the hot pressing frame 301. Usually, two guide shafts 303 are configured to improve the movement stability of the base plate 302.

[0052] The lifting mechanism is fixed on the hot pressing frame 301, and the output end of the lifting mechanism is connected to the substrate 302. The lifting mechanism specifically includes a lifting motor 305, a swing arm 306 and a connecting rod 307. The lifting motor 305 is fixed on the motor bracket by screws, and the motor bracket is fixedly connected to one side of the top surface of the middle top plate of the hot pressing frame 301 by screws. The swing arm 306 is fixedly connected to the motor shaft of the lifting motor 305, and both ends of the connecting rod 307 are pivotally connected to the swing arm 306 and the substrate 302 respectively through pins. Usually, a connecting block 308 is fixed on the top surface of the substrate 302 by screws, and the connecting rod 307 is connected to the connecting block 308 through a pin. It is easy to understand that a notch is provided on the top plate in the hot pressing frame 301 to facilitate the passage of the connecting rod 307 and the connecting block 308, so that the lifting mechanism can drive the substrate 302 to reciprocate up and down in the height direction.

[0053] The film pressing plate 309 is located below the substrate 302, and the two are parallel to each other. The film pressing plate 309 is also slidably connected to the substrate 302 in the height direction. For example, a hot pressing guide post 310 is fixed on the film pressing plate 309, and a guide hole, a guide sleeve or a guide bearing adapted to the hot pressing guide post 310 is provided on the corresponding substrate 302. The upper end of the hot pressing guide post 310 extends to one side of the top surface of the substrate 302, and an anti-separation block is provided at the upper end of the hot pressing guide post 310 to prevent the film pressing plate 309 from separating from the substrate 302, so that the film pressing plate 309 can lift relative to the substrate 302 along the hot pressing guide post 310. An elastic member 311 is also connected between the film pressing plate 309 and the substrate 302. The elastic member 311 is used to provide an elastic force to separate the film pressing plate 309 and the substrate 302 from each other. The elastic member 311 is a helical compression spring and is sleeved on the hot pressing guide post 310. With such a setting, pressure can be applied to the film pressing plate 309 through the substrate 302 and the elastic member 311, and the film pressing plate 309 can be prevented from damaging the product to be sealed.

[0054] The heating plate 312 is fixedly connected to one side of the top surface of the film pressing plate 309. An electric heating wire (not shown in the figure) is provided inside the heating plate 312. Both the heating plate 312 and the film pressing plate 309 are made of materials with high thermal conductivity, such as steel plates. The size of the heating plate 312 is slightly smaller than that of the film pressing plate 309, so that the heating plate 312 can avoid the hot pressing guide post 310. A wire passing tube 313 is fixed on the top surface of the heating plate 312 to facilitate the electric heating wire to pass through the wire passing tube 313. Correspondingly, a through hole for the wire passing tube 313 to pass through is provided on the substrate 302.

[0055] As Figures 9-14As shown, the film clamping assembly 400 is used to draw the film material released by the feeding assembly 200 to the lower part of the hot pressing assembly 300 under the drive of the transmission assembly 500, so that the hot pressing assembly 300 can hot press the film material on the product to be film-sealed (such as a 96-well plate), and the product to be film-sealed (such as a 96-well plate) is placed on the base 600.

[0056] The transmission assembly 500 includes a transmission motor 501, a transmission lead screw 502 and a transmission nut 503. The transmission motor 501 is fixed to the top surface of the base 1 by screws. Both ends of the transmission lead screw 502 in the length direction are fixed to the bearing seats arranged on one side of the top surface of the base 1 through bearings. The transmission lead screw 502 is arranged in the front-back direction of the film sealer, and one end of the transmission lead screw 502 is also connected to the motor shaft of the transmission motor 501 through a coupling.

[0057] The transmission nut 503 is screwed onto the transmission lead screw 502. A first slide rail 504 is fixedly connected to the transmission nut 503 by screws. In addition, a first slider 505 that cooperates with the first slide rail 504 is fixedly installed at the front part of the top surface of the base 1. In this way, when the transmission motor 501 works, it can drive the transmission lead screw 502 to rotate, and then drive the transmission nut 503 to move along the axial direction of the transmission lead screw 502, and further drive the first slide rail 504 to move horizontally in the front-back direction of the film sealer.

[0058] The film clamping assembly 400 includes a fixed part 401, a movable part 402, an elastic reset part 403 and an electromagnet 404.

[0059] The fixed part 401 is fixedly connected to the first slide rail 504 by screws. The movable part 402 is pivotally connected relative to the fixed part 401. The movable part 402 includes a long strip-shaped body part. A gap for the film material to pass through is reserved between the body part of the movable part 402 and the fixed part 401. The body part is arranged horizontally and perpendicular to the sliding direction of the fixed part 401, that is, the body part is arranged in the left-right direction of the film sealer. Arms are provided at both ends of the body part in the length direction, for example, integrally formed. The fixed part 401 is located between the two arms. Both arms are pivotally connected to the fixed part 401 through pivot shafts. For example, the pivot shaft is configured as a screw, and the screw is screwed into the threaded hole opened on the side surface of the fixed part 401. A screw through hole is opened on the arm of the movable part 402, and the part of the screw exposed from the threaded hole is configured as a smooth arm to prevent the thread from affecting the pivoting of the movable part 402. In addition, the screw can also prevent the movable part 402 from falling off.

[0060] Clamping plates are fixedly connected to both the movable member 402 and the fixed member 401. Specifically, a lower clamping plate 405 is connected to the fixed member 401, and an upper clamping plate 406 is connected to the movable member 402 (the main body part thereof). Among them, the lower clamping plate 405 is arranged horizontally, and the inclination angle of the upper clamping plate 406 changes as the movable member 402 pivots. At a certain rotation angle of the movable member 402, the upper clamping plate 406 will be approximately parallel to the lower clamping plate 405. At this time, there is also a gap for the film material to pass between the upper clamping plate 406 and the lower clamping plate 405. When the movable member 402 pivots relative to the fixed member 401, the gap between the free end of the upper clamping plate 406 and the lower clamping plate 405 will change, thereby clamping or releasing the film material.

[0061] Among them, a pressing groove is formed on one side of the top surface of the lower clamping plate 405, and a pressing rib adapted to the pressing groove is correspondingly provided at the free end of the upper clamping plate 406, so as to clamp the film material through the cooperation of the pressing groove and the pressing rib. Of course, the pressing rib can also be arranged on the top surface of the lower clamping plate 405, and the pressing groove can be arranged at the free end of the upper clamping plate 406.

[0062] An elastic reset member 403 is connected between the movable member 402 and the fixed member 401. The elastic reset member 403 is used to provide an elastic force that makes the upper clamping plate 406 and the lower clamping plate 405 approach and contact each other. That is, the free end of the upper clamping plate 406 approaches and contacts the lower clamping plate 405. The elastic reset member 403 is configured as a helical compression spring. Spring seats 407 are fixedly provided on both the fixed member 401 and the movable member 402. It has a sheet-like structure, and support columns adapted to the helical compression spring are provided on the spring seats 407. Through the arrangement of the support columns and the spring seats 407, the helical compression spring can be more stably connected between the fixed member 401 and the movable member 402. When the movable member 402 pivots (driving the upper clamping plate 406 away from the lower clamping plate 405), the helical compression spring is further compressed.

[0063] The electromagnet 404 is fixedly connected relative to the fixed member 401. A film clamping bracket 408 is fixedly connected to the fixed member 401, and the electromagnet 404 is fixedly connected to the film clamping bracket 408. And a drag chain 409 is provided between the film clamping bracket 408 and the base 1 to facilitate supporting the cable for supplying power to the electromagnet 404. The electromagnet 404 is used to provide a thrust to the movable member 402 that can overcome the elastic force of the elastic reset member 403 after being energized, so as to make the upper clamping plate 406 away from the lower clamping plate 405.

[0064] It is easy to understand that two elastic reset members 403 and two electromagnets 404 are provided. The two elastic reset members 403 and the two electromagnets 404 are respectively arranged at both ends of the movable member 402 in the length direction, so that the pivoting movement of the movable member 402 is more stable.

[0065] In this embodiment, the base 600 is also fixed on the first slide rail 504. In order to facilitate fixing both the base 600 and the fixing member 401 on the first slide rail 504, in this embodiment, a bottom plate 506 is first fixed on the first slide rail 504 by screws, and then the above-mentioned base 600 and fixing member 401 are both fixed on the bottom plate 506 by screws.

[0066] As Figures 15-16 shown, the film cutting assembly 700 is used to cut a section of film material that has been drawn to the hot pressing assembly 300. In this embodiment, the film cutting assembly 700 includes a chopping seat 701, a cutting knife 702, and an elastic support member 703.

[0067] The chopping seat 701 is also slidably connected relative to the base 1. For example, the chopping seat 701 is fixed with a second slide rail 704 by screws, and a second slider 705 is fixed on one side of the top surface of the base 1. In addition, the chopping seat 701 is also driven to move by the transmission assembly 500. For example, a long strip-shaped traction ring 706 is fixed on the fixing member 401 in the film clamping assembly 400 by screws, and a pulling column 707 adapted to the traction ring 706 is fixed on the corresponding chopping seat 701. Thus, when the transmission assembly 500 works, the base 600 and the film clamping assembly 400 will first move synchronously, and the film clamping assembly 400 will drive the traction ring 706 to move. When the film clamping assembly 400 moves a certain distance (that is, the rear end of the traction ring 706 contacts the pulling column 707, or the pulling column 707 moves to the rear end of the traction ring 706), the film cutting assembly 700 will then be driven to move accordingly.

[0068] The top surface of the chopping seat 701 is provided with a groove in the front-rear direction and a groove in the left-right direction. The front-rear groove is for the film material to pass through, and the left-right groove allows the cutting knife 702 to move in the height direction therein.

[0069] In this embodiment, the cutting knife 702 is configured to be integrally long strip-shaped and in an n-shaped structure, including two sliding blocks and a blade located between the two sliding blocks. Tightening screws 708 are threadedly connected to both ends of the left-right groove on the chopping seat 701, and screw through holes for the tightening screws 708 to pass through are correspondingly provided on the two sliding blocks of the cutting knife 702, so that the cutting knife 702 can be slidably connected relative to the chopping seat 701 in the height direction under the support of the tightening screws 708. The blade is integrally arc-shaped, and the arc-shaped blade is arranged perpendicular to the film material conveying direction (i.e., the left-right direction). The two ends of the arc-shaped blade in the length direction are at low points. Thus, when the cutting knife 702 is pressed down, the two ends of the blade first contact both sides of the film material in the length direction, and then the blade cuts the film material from both sides to the middle. During the cutting process, the film material is symmetrically stressed and will not be skewed or flipped.

[0070] The elastic support member 703 is configured as a helical compression spring, two of which are respectively mounted on two fastening screws 708. At the same time, the elastic support member 703 is located between the bottom surface of the cutter 702 and the bottom of the left and right grooves. The elastic support member 703 is used to provide an elastic force to keep the cutter 702 away from the cutting seat 701, so that there is a spacing between the cutter 702 and the bottom of the front and back grooves for the film material to pass through.

[0071] In this embodiment, when the film cutting assembly 700 is driven by the transmission assembly 500 to the bottom of the hot pressing assembly 300, and when the film pressing plate 309 in the hot pressing assembly 300 is driven downward, the pressing plate 309 will simultaneously apply downward pressure to the cutter 702 in the film cutting assembly 700, thereby cutting the film material.

[0072] This embodiment also includes a suction cup 900 and a negative pressure generating device 100. There are a plurality of suction cups 900, and each of the suction cups 900 is fixedly connected to the film pressing plate 309, for example, two suction cups 900 are respectively arranged on the front and rear sides of the film pressing plate 309. In addition, the suction surface (i.e., the bottom surface) of the suction cup 900 protrudes from the bottom surface of the film pressing plate 309, and the suction cup 900 has a certain degree of expansion and contraction, such as a multi-layer suction cup, so that the suction cup 900 can absorb the film, and at the same time, it does not affect the film pressing plate 309 to perform hot pressing on the film, such as Figure 7 shown.

[0073] Each suction cup 900 is connected to the negative pressure generating device 100 through a pipeline (such as a hose, not shown in the figure), and the negative pressure generating device 100 is configured as an air pump, such as Figure 3 As shown, it is fixed on the base 1 through a bracket (such as a material discharge bracket 202). In addition, four pipe penetration holes for pipes to pass through are provided on the top surface of the base plate 302 and the hot pressing frame 301.

[0074] In addition, this embodiment is also equipped with a guide plate 110. Figure 22 As shown, when the guide plate 110 is used, it is inserted from the front of the film sealing instrument, first passes under the hot pressing assembly 300, then passes through the gap reserved by the film clamping assembly 400 and the film cutting assembly 700 (for the film material to pass through), and finally the guide plate 110 extends to the discharge roller 201. After the guide plate 110 is pulled to the film material released by the discharge roller 201, the guide plate 110 is retracted, and the film material can pass through the film cutting assembly 700 and the film clamping assembly 400 until it reaches the bottom of the hot pressing assembly 300. As the guide plate 110 is moved, the film material approaches the bottom surface of the film pressing plate 309, so that it can be adsorbed by the suction cup 311.

[0075] It is easily understandable that the film clamping assembly 400 further includes a guiding block 410 fixedly connected to the fixing member 401. A channel for the film material to pass through is reserved between the guiding block 410 and the fixing member 401. Chamfers are provided on both the upper and lower sides at the front end of this channel (i.e., the lower side at the front end of the guiding block 410 and the upper side at the front end of the fixing member 401) so that the guiding plate 110 can enter conveniently.

[0076] The working process of the film sealing instrument provided by the embodiment of the present utility model is as follows:

[0077] 1) During use, the electromagnet 404 in the film clamping assembly 400 is energized, causing the upper clamping plate 406 to move away from the lower clamping plate 405, thereby forming a gap for the film material to pass through in the film clamping assembly 400; then one end of the guiding plate 110 sequentially passes under the hot pressing assembly 300, through the film clamping assembly 400 and the film cutting assembly 700 until it extends to the feeding assembly 200 and is connected to the film material. Then, the film material is guided to the hot pressing assembly 300 through the guiding plate 110. The negative pressure generating device 100 is started, and the film material guided to the hot pressing assembly 300 is adsorbed by the suction cup 900, and the guiding plate 110 withdraws; the above is the manual-assisted start-up process (after replacing the new film material for the feeding assembly 200 of the film sealing instrument);

[0078] 2) After the film material is adsorbed (or when the guiding plate 110 is operating), the heating plate 312 can be energized for heating, and then the film material adsorbed by the suction cup 900 is heated; at the same time, the transmission assembly 500 is started. On the one hand, it drives the base 600 to move forward and away from the heat sealing station (i.e., away from under the hot pressing assembly 300). At the same time, the transmission assembly 500 also drives the film clamping assembly 400 to move towards the heat sealing station side. After moving a certain distance, the film cutting assembly 700 will also follow the movement driven by the pulling column 707 until the film cutting assembly 700 moves to the position under the film pressing plate 309; at this time, the base 600 moves to the loading and unloading station (usually not affected by the hot pressing assembly 300 during loading and unloading) so that the 96-well plate to be film-sealed can be placed on the base 600;

[0079] 3) Then the lifting motor 305 in the hot pressing assembly 300 operates, driving the substrate 302 to move downward through the swing arm 306 and the connecting rod 307. The substrate 302 drives the film pressing plate 309 to move downward through the elastic member 311, and gives the cutter 702 in the film cutting assembly 700 a downward pressure to cut the film material, thereby cutting the film material; then the lifting motor 305 drives the film pressing plate 309 to rise, and the cutter 702 rebounds and resets under the elastic force of the elastic support member 703; at this time, the film material adapted to the 96-well plate is cut and adsorbed on one side of the bottom surface of the film pressing plate 309;

[0080] 4) The transmission assembly 500 rotates in reverse, driving the base 600 and the film clamping assembly 400 to move towards the film cutting assembly 700. When the film clamping assembly 400 touches the film cutting assembly 700, the film cutting assembly 700 is also driven to retract together. Before the film clamping assembly 400 touches the film cutting assembly 700, the electromagnet 404 in the film clamping assembly 400 is energized, thereby creating a gap between the upper clamping plate 406 and the lower clamping plate 405, so that the break of the film material (i.e., the newly formed free end of the film material) can extend between the upper clamping plate 406 and the lower clamping plate 405. Then when the film clamping assembly 400 touches the film cutting assembly 700, the electromagnet 404 is de-energized, and the film material is pressed tightly between the upper clamping plate 406 and the lower clamping plate 405; until the transmission assembly 500 drives the base 600 to stop directly below the hot pressing assembly 300;

[0081] 5) The lifting motor 305 in the hot pressing assembly 300 operates, driving the pressing template 309 to descend, hot pressing the heated film material onto the 96-well plate to complete film sealing. At the same time, the negative pressure generating device 100 stops working, and the suction cup 900 releases the film material;

[0082] 6) After film sealing is completed, the transmission assembly 500 starts, driving the base 600 from the hot sealing station to the loading and unloading station. During this process, since the film material has been clamped by the film clamping assembly 400, the film material will be pulled back to the hot sealing station again; at the same time, the film cutting assembly 700 will also move to the position below the pressing film plate 309;

[0083] 7) The lifting motor 305 in the hot pressing assembly 300 operates, driving the substrate 302 to descend through the swing arm 306 and the connecting rod 307. The substrate 302 drives the pressing film plate 309 to descend through the elastic member 311, applying a downward pressure to the cutting knife 702 in the film cutting assembly 700 through the pressing template 309 to cut the film material. At the same time, the negative pressure generating device 100 starts, adsorbing the cut film material; then the lifting motor 305 drives the pressing template 309 to rise, and the cutting knife 702 rebounds and resets under the elastic force of the elastic support member 703; the film material adapted to the 96-well plate is cut and adsorbed on one side of the bottom surface of the pressing film plate 309;

[0084] Repeatedly execute the content of the above steps 4) to step 7), and the film sealing operation of the 96-well plate can be continuously carried out.

[0085] Embodiment 2

[0086] Based on Embodiment 1, as Figures 17-19 shown, this embodiment further includes a film pressing assembly 800 fixedly connected to the film cutting assembly 700. The film pressing assembly 800 is arranged on the upstream side of the film cutting assembly 700. The film pressing assembly 800 specifically includes a film pressing seat 801, a roller seat 802, a roller 803, and a film pressing spring 804.

[0087] The film pressing seat 801 is also fixed on the second slide rail 704. The roller seat 802 is located on one side of the top surface of the film pressing seat 801, and the roller seat 802 is slidably connected to the film pressing seat 801 in the height direction. For example, a film pressing guide post 805 is fixedly connected to one side of the top surface of the film pressing seat 801, and a guide hole adapted to the film pressing guide post 805 is provided on the roller seat 802, so that the roller seat 802 can slide relative to the film pressing seat 801 in the height direction through the film pressing guide post 805. The film pressing spring 804 is configured as a helical compression spring, which is sleeved on the film pressing guide post 805. The film pressing spring 804 is located on the upper side of the roller seat 802, and a limiting portion for preventing the film pressing spring 804 from falling off is provided at the top of the film pressing guide post 805, and the diameter of the limiting portion is larger than the diameter of the film pressing spring 804. For example, the film pressing guide post 805 is configured as a screw, on the one hand, the screw is threadedly connected to the film pressing seat 801, and on the other hand, the roller seat 802 will not easily slip off.

[0088] The roller 803 is rotatably connected to the roller seat 802. The rotation axis of the roller 803 is horizontally arranged, and the rotation axis of the roller 803 is along the left-right direction of the film sealing instrument. The film pressing spring 804 is used to provide an elastic force that presses the circumferential surface of the roller 803 against the top surface of the film pressing seat 801, so that the film material conveyed through the top surface of the film pressing seat 801 can be subjected to the pressure given by the roller 803, thereby preventing the film material from drifting to the side of the unwinding roller after being cut.

[0089] In this embodiment, two roller seats 802 are provided and arranged at intervals in the left-right direction. A roller 803 is rotatably connected to each roller seat 802, and the two rollers 803 are respectively used to press both sides of the length direction of the film material. Of course, each roller seat 802 is also provided with a film pressing spring 804.

[0090] In this embodiment, as Figure 20 and 21 shown, the film pressing assembly 800 further includes a guide plate 806 and a bearing plate 807. The left and right ends of the middle part of the guide plate 806 are fixedly connected to the two roller seats 802 by screws. The bearing plate 807 is fixedly connected relative to the base 1. For example, the bearing plate 807 is fixedly connected to the film pressing seat 801 or the second slide rail 704 by screws or welding. The bearing plate 807 is located at the rear side of the film pressing seat 801 (i.e., the side facing the unwinding assembly 200), and a gap for the film material to pass through is reserved between the bearing plate 807 and the guide plate 806. It is easy to understand that the upstream end (i.e., the rear end, the end facing the unwinding assembly 200) of the guide plate 806 is configured as a bent structure suitable for the input of the film material, and the bent structure is bent upward.

[0091] In this embodiment, the front end of the guide plate 806 extends above the cutting knife 702. The film pressing assembly 800 further includes a pressing rod 808 and a receiving plate 809. The pressing rod 808 is fixedly connected to the rear end of the guide plate 806. A through hole for the pressing rod 808 to pass through is correspondingly formed in the cutting knife 702. The receiving plate 809 is fixedly connected to the cutting knife 702 by screws or welding. And a spacing for the film material to pass through is reserved between the lower end of the pressing rod 808 and the receiving plate 809.

[0092] In addition, the pressing rod 808 and the receiving plate 809 are arranged on the rear side of the cutting edge in the cutting knife 702. With such an arrangement, when the film material is cut off, the cut of the film material will fall on the receiving plate 809, and under the restriction of the pressing rod 808, the film material will not turn up either, so that the cut of the film material is restricted, facilitating the clamping and traction of the cut of the film material by the traction assembly of the film sealing device.

[0093] Among them, more than one pressing rod 808 can be configured. For example, three pressing rods 808 are configured and arranged at intervals. To further facilitate the clamping and traction of the cut of the film material by the film clamping assembly 400 of the film sealing device, in this embodiment, two notches 810 are arranged at the front end of the receiving plate 809. The two notches 810 are respectively located between two adjacent pressing rods 808. There is no pressing rod 808 blocking the upper side of the notch 810 and no receiving plate 809 blocking the lower side, thus facilitating the film clamping assembly 400 of the film sealing device to clamp and traction the cut of the film material through the notch 810.

[0094] With such an arrangement, when the film material is cut off by the film cutting assembly 700, the position of the cut of the film material (near it) can be pressed by the film pressing assembly 800, preventing the cut of the film material from exiting from the film cutting assembly 700 and avoiding the situation where the film clamping assembly 400 cannot clamp the cut of the film material.

[0095] Embodiment 3

[0096] On the basis of the above embodiment, as Figure 22 and Figure 23 shown, it is configured that the film sealer further includes a housing 2. The housing 2 is fixedly connected to the base 1. The above-mentioned hot pressing assembly 300, negative pressure generating device 100, transmission assembly 500, first slide rail 504, second slide rail 704, film clamping assembly 400, film cutting assembly 700 and the film pressing assembly 800 in Embodiment 2 are all located inside the housing 2. There is a break notch at the upper end of the rear part of the housing 2, and the feeding assembly 200 is installed in this break notch to facilitate observing the remaining amount of the film material and convenient replacement.

[0097] It is easy to understand that the loading and unloading stations of the 96-well plate are usually arranged on the front side outside of the housing 2. Therefore, an opening for the base 600 to enter and exit is correspondingly provided on the front side of the housing 2. For sealing needs, a hatch 3 is installed at the opening. To facilitate the entry and exit of the base 600, the lower end of the hatch 3 is usually pivotally connected to the lower end of the opening of the housing 2, and a hatch return member (not shown in the figure, such as a torsion spring or a tension spring) is connected between the hatch 3 and the housing 2. The torsion spring or the tension spring is used to provide the elastic force to keep the hatch 3 in a normally closed state.

[0098] It is easy to understand that it further includes a sensor 120 for detecting whether there is film material passing through. The sensor 120 is located below the unwinding roller 201 and also on the upstream side of the die pressing assembly 800.

[0099] Embodiment 4

[0100] This embodiment of the film sealer specifically further includes a control panel 5 and a power supply 6, as Figures 22-23 and Figure 1 shown.

[0101] The control panel 5 is fixedly installed at the upper end of the front part of the housing 2. For example, an installation opening adapted to the control panel 5 is provided at the upper end of the front part of the housing 2. The power supply 6 is fixed on one side of the top surface of the base 1, and the power supply 6 is also located inside the housing 2.

[0102] The control panel 5 is electrically connected to the power supply 6, the lifting motor 305 and the heating plate 312 in the hot pressing assembly 300, the negative pressure generating device 100, the driving motor 501 in the transmission assembly 500, and the electromagnet 404 in the film clamping assembly 400 through wires. Usually, each motor is also equipped with a motor controller, and these motor controllers are also electrically connected to the control panel 5. On the one hand, they obtain the electrical energy supply from the power supply 6 through the control panel 5, and on the other hand, they also accept the control of the control panel 5.

[0103] It is easy to understand that the film sealer usually further includes a fan 7 for heat dissipation. Several fans 7 can be configured. The fans 7 can be fixedly installed through the hot pressing frame 301 in the hot pressing assembly 300 to facilitate heat dissipation of the lifting motor 305 and the control panel 5.

[0104] The above has described the embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A film sealing instrument, characterized in that: It includes a base and a feeding assembly, a hot pressing assembly, a film clamping assembly, a film cutting assembly, a base and a transmission assembly installed on the base; the feeding assembly is used to release the rolled film material, the film clamping assembly is used to pull the film material released by the feeding assembly to the hot pressing assembly under the drive of the transmission assembly, the film cutting assembly is used to cut the film material compatible with the base, and the hot pressing assembly is used to hot press the cut film material onto the base.

2. The film sealing instrument according to claim 1, characterized in that: The base is slidably connected to the base in a horizontal direction, and the base is fixedly connected relative to the output end of the transmission assembly; the film cutting assembly is slidably connected to the base in a horizontal direction, a long strip of traction ring is fixedly connected to the film clamping assembly, and a traction rod adapted to the traction ring is fixedly connected to the film cutting assembly.

3. The film sealing instrument according to claim 1, characterized in that: It also includes a suction cup and a negative pressure generating device, wherein the suction cup is fixedly connected to the hot pressing assembly, and the adsorption surface of the suction cup protrudes from the bottom surface of the hot pressing assembly, and the negative pressure generating device is fixedly connected to the base, and each of the suction cups is connected to the negative pressure generating device through a pipeline.

4. The film sealing instrument according to claim 1, characterized in that: The hot pressing assembly includes a hot pressing frame, a substrate, a film pressing plate, a heating plate, a pressure bearing seat and a lifting mechanism; the substrate is slidably connected relative to the hot pressing frame along the height direction, the lifting mechanism is fixed on the hot pressing frame, and its output end is connected to the substrate; the film pressing plate is located below the substrate and is slidably connected relative to the substrate along the height direction, and an elastic member is also connected between the film pressing plate and the substrate, and the elastic member is used to provide an elastic force to keep the film pressing plate and the substrate away from each other; the heating plate is fixed to one side of the top surface of the film pressing plate; the pressure bearing seat is fixedly connected to the hot pressing frame and is located below the film pressing plate.

5. The film sealing instrument according to claim 1, characterized in that: The film clamping assembly includes a fixed part, a movable part, an elastic reset part and an electromagnet; the fixed part is slidably connected relative to the base, the movable part is pivotally connected relative to the fixed part, and a gap is reserved between the fixed part and the movable part for the film material to pass through; a clamping plate is fixedly connected to the movable part and the fixed part; the elastic reset part is connected between the movable part and the fixed part, and the elastic reset part is used to provide an elastic force that makes the two clamping plates approach each other and contact each other; the electromagnet is fixedly connected to the fixed part, and the electromagnet is used to provide a thrust to the movable part that can overcome the elastic force after power is turned on, so as to make the two clamping plates move away from each other.

6. The film sealing instrument according to claim 5, characterized in that: One of the clamping plates is provided with a pressing groove, and the other clamping plate is correspondingly provided with a pressing corrugation matched with the pressing groove.

7. The film sealing instrument according to claim 1, characterized in that: The film cutting assembly includes a cutting seat, a cutting knife and an elastic support member. The cutting knife is slidably connected relative to the cutting seat along the height direction. The elastic support member is connected between the cutting knife and the cutting seat. The elastic support member is used to provide an elastic force to keep the cutting knife away from the cutting seat.

8. The film sealing instrument according to claim 1, characterized in that: It also includes a film pressing assembly fixedly connected to the film shearing assembly, the film pressing assembly including a film pressing seat, a roller, a roller seat and a compression spring; the roller is rotatably connected to the roller seat, the roller seat is slidably connected to the film pressing seat along the height direction, the compression spring is connected between the film pressing seat and the roller seat, and the compression spring is used to provide an elastic force to press the roller against the film pressing seat.

9. The film sealing instrument according to claim 8, characterized in that: The film pressing assembly also includes a guide plate and a supporting plate. The two ends of the guide plate are fixedly connected to the two roller seats respectively. The supporting plate is fixedly connected to the film pressing seat. A gap is reserved between the supporting plate and the guide plate for film material to pass through.

10. The film sealing instrument according to claim 1, characterized in that: It also includes a shell fixedly connected to the base, and the hot pressing assembly, the film clamping assembly, the film cutting assembly, the base and the transmission assembly are all located inside the shell; the shell is provided with an opening for the base to enter and exit, and a hatch is pivotally connected to the opening, and a reset member is connected between the hatch and the shell, and the reset member is used to keep the hatch in a normally closed state.

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