A film sealer and method of sealing

Abstract

The application provides a film rolling type film sealing device and a film sealing method. The film rolling type film sealing device comprises pre-cut rolling sealing plate film, a structure frame, a film carrying transmission mechanism, a hole plate moving mechanism and a film sealing mechanism. The pre-cut rolling sealing plate film comprises a film carrier, which is a continuous film body in a roll shape. The surface of the film carrier is sequentially arranged with sealing plate films matched with hole plates along the length direction. According to the technical scheme, the sealing plate films are carried by the film carrier, each sealing plate film is matched with a hole plate to be sealed, and each sealing plate film can be automatically separated from the film carrier after being combined with a multi-hole plate. The continuous automatic supply of the sealing plate films can be realized, the sealing efficiency and the sealing quality are improved, the structure of the film sealing device is more simple, and different types of sealing plate films only need to be replaced for different types of multi-hole plates, so that the diversified needs of customers can be met.

Description

Technical Field

[0001] This invention relates to the field of sealing technology, specifically a roll-up sealing device and sealing method. Background Technology

[0002] In biochemical experiments, the sample solution to be analyzed is first added dropwise to each well of a multi-well plate and tested simultaneously under the same conditions. To prevent sample evaporation and cross-contamination between samples in different wells, a sealing film is usually applied to the surface of the multi-well plate after sample addition.

[0003] Currently, the commonly used sealing films are single-sheet designs. During sealing, the single sheet of sealing film is first placed on the surface of the porous plate, and then sealed by heating and pressurization. However, stacking multiple sheets of sealing film can easily lead to them becoming scattered, and manually placing the film before sealing is cumbersome, affecting experimental efficiency.

[0004] Another type is the sealing film packaged in rolls, which is cut to the required size before use. When applied to automated sealing equipment, the sealing film often needs to be much wider than the perforated plate to allow for continuous conveying by preserving the edges. However, sealing film is much more expensive than ordinary film, increasing the overall cost of sealing. Furthermore, automated sealing equipment requires a corresponding cutting mechanism, making it difficult to adapt to various types of perforated plates. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a roll-up sealing device and sealing method.

[0006] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is: a roll-up film sealing device, comprising:

[0007] A pre-cut roll sealing film includes a carrier film, which is a continuous roll of film. The same surface of the carrier film has several sealing film placement areas arranged sequentially along the length of the carrier film. The carrier film also has a position indicator structure that matches the position of each sealing film placement area. Each sealing film placement area is attached with at least one sealing film.

[0008] Structural frame;

[0009] A film transport mechanism for the extended transport of the pre-cut roll sealing film;

[0010] A perforated plate transfer mechanism includes a perforated plate holder and a translation mechanism. The perforated plate holder is used to place a perforated plate to be sealed, and the translation mechanism drives the perforated plate holder to move between a sealing position and a pick-up / placement position.

[0011] A sealing mechanism includes a pressure plate and a pressurizing mechanism, the pressurizing mechanism being used to apply pressure to the pressure plate, the pressure plate of the sealing mechanism being located directly above the sealing position, and the carrier film of the pre-cut roll sealing film extending between the pressure plate and the perforated plate.

[0012] The technical solution of this invention uses a carrier film to support the sealing film. Each sealing film setting area is attached with a sealing film that matches the perforated plate to be sealed. After each sealing film is combined with the perforated plate, it can automatically detach from the carrier film, which can realize the sequential and continuous supply of sealing films, improve sealing efficiency and sealing quality. The sealing machine has a more streamlined structure. For different types of perforated plates, only different types of sealing films need to be replaced, which can meet the diverse needs of customers.

[0013] Furthermore, the carrier film transport mechanism includes:

[0014] A film holder for holding the pre-cut roll sealing film;

[0015] The feed roller assembly includes a first feed roller, a second feed roller, and a first rotary drive mechanism. The first feed roller and the second feed roller press against each other, and the first rotary drive mechanism drives the first feed roller and the second feed roller to rotate relative to each other.

[0016] Film carrier conveying roller assembly, which is used for conveying the film carrier;

[0017] A sealing film position detection mechanism is used to identify the position indication structure on the carrier film;

[0018] The winding mechanism includes a winding wheel and a second rotary drive mechanism, the second rotary drive mechanism driving the winding wheel to rotate.

[0019] Furthermore, the film transport mechanism also includes a tensioning roller assembly, which includes a tensioning center roller, a swing frame, a tensioning swing roller, a position detection rod, and a position detection sensor assembly. The tensioning center roller is rotatably mounted on the structural frame, one end of the swing frame is rotatably mounted on the end of the tensioning center roller, the tensioning swing roller is rotatably mounted on the other end of the swing frame, the position detection rod is connected to the swing frame, and the position detection sensor assembly is mounted on the structural frame. The position detection sensor assembly is used to detect the swing angle of the position detection rod.

[0020] The carrier film of the pre-cut roll sealing film is sequentially passed from the film roll frame between the first and second feed rollers, through the carrier film conveying roller group, the upper edge of the tensioning center roller, and the lower edge of the tensioning swing roller to the take-up roller.

[0021] Using the above-mentioned preferred scheme, the feed length of the carrier film is controlled by the feed roller group, the carrier film is wound up by the winding mechanism, and the position detection sensor group can detect the state of the carrier film. By coordinating the rotation speeds of the winding mechanism and the feed roller group, it is possible to ensure that the carrier film is in a taut state during sealing, thereby improving the sealing effect. After sealing, the winding mechanism can be reversed to adjust the carrier film to a slack state, which facilitates the retraction of the carrier film and allows for precise alignment of the next sealing film with the perforated plate. The spacing between adjacent sealing films on the carrier film is no longer limited, thereby increasing the capacity of the sealing film on the carrier film.

[0022] Furthermore, the position detection sensor group works in conjunction with the position detection rod to detect the three position states of the tensioning swing roller: the upper swing position, the middle position, and the lower swing position.

[0023] Using the above-mentioned preferred scheme, when the tensioning swing roller is in the upper swing position, it indicates that the tension on the carrier film is too high, and the speed of the winding mechanism needs to be reduced; when the tensioning swing roller is in the middle position, it indicates that the carrier film is in a tensioned state and the tension is kept within a stable range; when the tensioning swing roller is in the lower swing position, the carrier film is in a relaxed state, which makes it easier to drive the carrier film back through the feed roller group.

[0024] Furthermore, the position detection rod has a fan-shaped light-shielding part, and the position detection sensor group includes a first photoelectric sensor and a second photoelectric sensor.

[0025] Using the preferred scheme described above, the positional relationship between the position detection rod and the first and second photoelectric sensors is used to determine the positional state of the tensioning swing roller.

[0026] Furthermore, when the fan-shaped light-blocking part of the position detection rod blocks the optical paths of the first photoelectric sensor and the second photoelectric sensor, the tensioning swing roller is in a downward swing position; when the fan-shaped light-blocking part of the position detection rod only blocks the optical path of the second photoelectric sensor, the tensioning swing roller is in an intermediate position; when the fan-shaped light-blocking part of the position detection rod is disengaged from both the optical paths of the first photoelectric sensor and the second photoelectric sensor, the tensioning swing roller is in an upward swing position.

[0027] By adopting the above-mentioned preferred scheme, the oscillation position of the tensioning oscillating roller can be reliably detected.

[0028] Furthermore, the swing frame is provided with a limiting structure. When the limiting structure abuts against the frame, the tensioning swing roller is in the downward swing position.

[0029] By adopting the above-mentioned preferred scheme, when the carrier film is in a relaxed state, the limiting structure can stabilize the position of the tension swing roller and prevent excessive swinging that would affect the re-tensioning and reset.

[0030] Furthermore, a tension spring is connected between the structural frame and the swing frame, the tension spring being used to generate a tendency force that causes the tension swing roller to move to the downward swing position.

[0031] The above-mentioned preferred scheme provides a stable tension force.

[0032] Furthermore, the sealing films attached to adjacent sealing film placement areas on the carrier film are separated from each other.

[0033] Furthermore, the position indication structure is an indicator hole provided on the carrier film, and the indicator hole is located laterally in the sealing film setting area.

[0034] Furthermore, the position indication structure is an indication mark disposed on the carrier film, and the indication mark is located laterally in the sealing film placement area.

[0035] By adopting the above-mentioned preferred scheme, a reasonable position indicator structure can be selected according to the requirements.

[0036] Furthermore, the sealing film is a heat-sealing film or a pressure-sensitive adhesive sealing film.

[0037] The preferred solution described above can be applied to different sealing film scenarios.

[0038] Furthermore, each of the sealing film setting areas is attached with a sealing film.

[0039] The preferred solution described above can be applied to sealing the entire plate surface, such as a 96-hole plate or a 384-hole plate.

[0040] Furthermore, each of the sealing film setting areas is attached with a plurality of strip-shaped sealing films arranged along the length direction of the carrier film.

[0041] Furthermore, each of the sealing film setting areas is attached with a plurality of strip-shaped sealing films arranged along the width direction of the carrier film.

[0042] The above-mentioned preferred solution can be used to seal connected pipes, such as eight-pipe connections.

[0043] Furthermore, each of the sealing film setting areas is attached with multiple sealing films arranged in a rectangular array.

[0044] The above-mentioned preferred scheme can be applied to single-tube seals arranged in an array on an orifice plate seat.

[0045] Furthermore, each sheet of sealing film is equipped with a tear handle.

[0046] The preferred solution described above facilitates the subsequent film-peeling operation.

[0047] Furthermore, the sealing film is attached to the surface of the carrier film via a micro-adhesive layer.

[0048] By adopting the above-mentioned preferred scheme, the stability of the adhesion position between the sealing film and the carrier film is improved, and it is ensured that the carrier film and the sealing film can be easily separated under a small external force after sealing.

[0049] Furthermore, the pressurizing mechanism includes a pressure plate mounting frame, a vertical guide shaft, a compression spring, and a lifting mechanism. The lower end of the vertical guide shaft is fixedly connected to the pressure plate. The vertical guide shaft is movably inserted through the pressure plate mounting frame. The compression spring is sleeved on the vertical guide shaft. The two ends of the compression spring respectively abut against the pressure plate and the pressure plate mounting frame. The lifting mechanism is used to drive the pressure plate mounting frame to move up and down.

[0050] The preferred solution described above can provide a stable film pressing force.

[0051] Furthermore, the pressure plate is equipped with a heating element and a temperature detection element.

[0052] By adopting the above-mentioned preferred solution, a precise sealing temperature can be provided for the heat sealing method.

[0053] A sealing method includes the following steps:

[0054] Step 11: Sequentially place the sealing film that matches the porous plate to be sealed onto the carrier film to form a pre-cut roll sealing film;

[0055] Step 12: Place the pre-cut roll sealing film onto the film transfer mechanism of the roll sealing machine;

[0056] Step 13: Place the perforated plate to be sealed onto the perforated plate holder, and the translation mechanism moves the perforated plate holder to the sealing position;

[0057] Step 14: The carrier film transfer mechanism moves the sealing film on the carrier film to directly above the porous plate;

[0058] Step 15: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0059] Step 16: The carrier film transfer mechanism drives the carrier film, and the perforated plate transfer mechanism drives the perforated plate and perforated plate bracket after sealing to move synchronously from the sealing position to the pick-up and drop position, completing the separation of the carrier film from the sealing film on the perforated plate.

[0060] Furthermore, a sealing method includes the following steps:

[0061] Step 21: Sequentially place the sealing film that matches the porous plate to be sealed onto the carrier film to form a pre-cut roll sealing film;

[0062] Step 22: Place the pre-cut roll sealing film onto the film roll frame, and move the carrier film from the film roll frame sequentially between the first and second feed rollers, through the carrier film conveying roller group, the upper edge of the tension center roller, and the lower edge of the tension swing roller to the take-up roller;

[0063] Step 23: Place the perforated plate to be sealed onto the perforated plate holder, and the translation mechanism moves the perforated plate holder to the sealing position;

[0064] Step 24: The carrier film is fed through the feed roller group and wound up by the winding mechanism, and the tension swing roller is controlled to be in the middle position. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, the carrier film is pushed forward a set distance, and the corresponding sealing film is moved to the top of the perforated plate.

[0065] Step 25: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0066] Step 26: The carrier film transfer mechanism drives the carrier film, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and drop position, completing the separation of the carrier film from the sealing film on the perforated plate.

[0067] Step 27: Remove the sealed perforated plate and place the next perforated plate to be sealed. The perforated plate transfer mechanism drives the perforated plate bracket and the perforated plate back to the sealing position.

[0068] Step 28: The winding mechanism reverses, causing the tension swing roller to be in the downward swing position;

[0069] Step 29: The feed roller group reverses, driving the carrier film back. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, it stops reversing. The winding mechanism rotates forward to wind up the film, controlling the tension swing roller to be in the middle position. Then it rotates forward again to push the carrier film forward a set distance, and the sealing film is moved to the top of the perforated plate.

[0070] Step 30: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0071] Step 31: The carrier film transfer mechanism drives the carrier film, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and put-away position, completing the separation of the carrier film from the sealing film on the perforated plate and removing the sealed perforated plate.

[0072] Step 32, repeat steps 27-31 to complete the sealing operation of the next perforated plate. Attached Figure Description

[0073] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0074] Figure 1 This is one of the cross-sectional views of an embodiment of the sealing device of the present invention;

[0075] Figure 2 This is a second cross-sectional view of one embodiment of the sealing device of the present invention;

[0076] Figure 3 This is a front view of one embodiment of the sealing device of the present invention;

[0077] Figure 4 This is a rear view of one embodiment of the sealing device of the present invention;

[0078] Figure 5 This is a partial structural diagram of the tensioning roller assembly;

[0079] Figure 6 This is a schematic diagram of one embodiment of pre-cut roll sealing film;

[0080] Figure 7 This is a schematic diagram of one of the structural embodiments of pre-cut roll sealing film;

[0081] Figure 8 This is a second schematic diagram of another implementation of pre-cut roll sealing film.

[0082] Figure 9 This is the third schematic diagram of another implementation of pre-cut roll sealing film.

[0083] The numbers and letters in the diagram represent the names of the corresponding components:

[0084] 10-Pre-cut roll sealing film; 11-Carrier film; 111-Sealing film setting area; 112-Position indicating structure; 12-Sealing film; 121-Tear handle; 20-Carrier film transport mechanism; 21-Structural frame; 22-Wrap film holder; 23-Feed roller assembly; 231-First feed roller; 232-Second feed roller; 233-First rotary drive mechanism; 24-Carrier film conveying roller assembly; 25-Tension roller assembly; 251-Tension center roller; 252-Swing frame; 253-Tension swing roller; 26-Position detection rod; 261-Fan-shaped light-shielding part; 27-Position detection sensor assembly; 271-First photoelectric sensor; 272-Second photoelectric sensor; 28-Wrap-up mechanism; 281-Wrap-up wheel; 282-Second rotary drive mechanism; 291-Limiting structure; 292-Tension spring; 31-Perforated plate; 32-Perforated plate bracket; 33-Translation mechanism; 34-Sealing film position; 35-Placement position; 41-Pressure plate; 42-Pressure plate mounting bracket; 43-Vertical guide shaft; 44-Compression spring; 45-Lifting mechanism; 51-Sealing film position detection mechanism. Detailed Implementation

[0085] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0086] like Figure 1 , 6 As shown, a roll-up film sealing machine includes:

[0087] The pre-cut roll sealing film 10 includes a carrier film 11, which is a continuous roll film. The same surface of the carrier film 11 is provided with a plurality of sealing film setting areas 111 arranged sequentially along the length direction of the carrier film. The carrier film 11 is also provided with a position indicator structure 112 that matches the position of each sealing film setting area 111. Each sealing film setting area 112 is attached with at least one sealing film 12.

[0088] Structural frame 21;

[0089] Film transport mechanism 20, which is used for the extended transport of pre-cut roll sealing film 10;

[0090] The perforated plate transfer mechanism includes a perforated plate bracket 32 ​​and a translation mechanism 33. The perforated plate bracket 32 ​​is used to place the perforated plate 31 to be sealed, and the translation mechanism 33 drives the perforated plate bracket 32 ​​to move between the sealing position 34 and the pick-and-place position 35.

[0091] The sealing mechanism includes a pressure plate 41 and a pressure mechanism for applying pressure to the pressure plate 41, which is located directly above the sealing position 34. The carrier film 11 of the pre-cut roll sealing film extends between the pressure plate 41 and the perforated plate 31.

[0092] A sealing method includes the following steps:

[0093] Step 11: Sequentially place the sealing film that matches the porous plate to be sealed onto the carrier film to form a pre-cut roll sealing film;

[0094] Step 12: Place the pre-cut roll sealing film onto the film transfer mechanism of the roll sealing machine;

[0095] Step 13: Place the perforated plate to be sealed onto the perforated plate holder, and the translation mechanism moves the perforated plate holder to the sealing position;

[0096] Step 14: The membrane transfer mechanism moves the sealing membrane on the carrier membrane to directly above the porous plate;

[0097] Step 15: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0098] Step 16: The membrane transfer mechanism drives the carrier membrane, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and drop position, completing the separation of the carrier membrane from the sealing film on the perforated plate.

[0099] The advantages of adopting the above technical solution are: the sealing film is supported by a carrier film, and a sealing film matching the perforated plate to be sealed is attached to each sealing film setting area. After each sealing film is combined with the perforated plate, it can automatically detach from the carrier film, which can realize the sequential and continuous supply of sealing film, improve sealing efficiency and sealing quality; the structure of the sealing machine is more streamlined, and for different types of perforated plates, only different types of sealing films need to be replaced, which can meet the diverse needs of customers.

[0100] like Figure 1-6 As shown, in some other embodiments of the present invention, the carrier film transport mechanism 20 includes:

[0101] Film roll holder 22, which is used to hold roll sealing film 10;

[0102] The feed roller assembly 23 includes a first feed roller 231, a second feed roller 232 and a first rotary drive mechanism 233. The first feed roller 231 and the second feed roller 232 press against each other, and the first rotary drive mechanism 233 drives the first feed roller 231 and the second feed roller 232 to rotate relative to each other.

[0103] A sealing film position detection mechanism is used to identify the position indication structure on the carrier film;

[0104] The film conveying roller assembly 24 is used for conveying the film 11;

[0105] The tensioning roller assembly 25 includes a structural frame 21, a tensioning center roller 251, a swing frame 252, a tensioning swing roller 253, a position detection rod 26, and a position detection sensor assembly 27. The tensioning center roller 251 is rotatably mounted on the structural frame 21. One end of the swing frame 252 is rotatably mounted on the end of the tensioning center roller 251. The tensioning swing roller 253 is rotatably mounted on the other end of the swing frame 252. The position detection rod 26 is connected to the swing frame 252. The position detection sensor assembly 27 is mounted on the structural frame 21 and is used to detect the swing angle of the position detection rod 26.

[0106] The winding mechanism 28 includes a winding wheel 281 and a second rotary drive mechanism 282, which drives the winding wheel 281 to rotate.

[0107] The carrier film 11 of the roll sealing film is sequentially passed from the film roll frame 22 between the first feed roller 231 and the second feed roller 232, the carrier film conveying roller group 24, the upper edge of the tension center roller 251, the lower edge of the tension swing roller 253, and onto the take-up roller 281.

[0108] The beneficial effects of adopting the above technical solution are as follows: the feed length of the carrier film is controlled by the feed roller group, the carrier film is wound up by the winding mechanism, the position detection sensor group can detect the state of the carrier film, and the rotation speed of the winding mechanism and the feed roller group are coordinated to ensure that the carrier film is in a taut state during sealing, thereby improving the sealing effect. After sealing, the winding mechanism can control the carrier film to a slack state, which facilitates the retraction of the carrier film and makes it easier to accurately align the next sealing film with the perforated plate. The spacing between adjacent sealing films on the carrier film is no longer limited, thereby increasing the load capacity of the sealing film on the carrier film.

[0109] like Figure 4 , 5 As shown, in some other embodiments of the present invention, the position detection sensor group 27 cooperates with the position detection rod 26 to detect three position states of the tension swing roller 253: the upper swing position, the middle position, and the lower swing position. The beneficial effects of adopting the above technical solution are: when the tension swing roller is in the upper swing position, it indicates that the tension of the carrier film is too high, and the speed of the winding mechanism needs to be reduced; when the tension swing roller is in the middle position, it indicates that the carrier film is in a tensioned state, and the tension is maintained within a stable range; when the tension swing roller is in the lower swing position, the carrier film is in a relaxed state, which facilitates the retraction of the carrier film by the feed roller group.

[0110] like Figure 4 , 5As shown, in some other embodiments of the present invention, the position detection rod 26 has a fan-shaped light-shielding portion 261, and the position detection sensor group 27 includes a first photoelectric sensor 271 and a second photoelectric sensor 272. The position state of the tension swing roller 253 is determined by the positional relationship between the position detection rod 26 and the first photoelectric sensor 271 and the second photoelectric sensor 272. The specific structural arrangement of the position detection rod and the first and second photoelectric sensors is not limited and can be selected as needed. For example, when the fan-shaped light-shielding portion 261 of the position detection rod blocks the light path of the first photoelectric sensor 271 and the second photoelectric sensor 272, the tension swing roller 253 is in the downward swing position; when the fan-shaped light-shielding portion 261 of the position detection rod only blocks the light path of the second photoelectric sensor 272, the tension swing roller 253 is in the intermediate position; when the fan-shaped light-shielding portion 261 of the position detection rod is disengaged from the light path of the first photoelectric sensor 271 and the second photoelectric sensor 272, the tension swing roller 253 is in the upward swing position.

[0111] like Figure 3 , 5 As shown, in some other embodiments of the present invention, the swing frame 252 is provided with a limiting structure 291. When the limiting structure 291 abuts against the structural frame 21, the tensioning swing roller 253 is in a downward swing position. The beneficial effect of adopting the above technical solution is that when the carrier film is in a relaxed state, the limiting structure can stabilize the position of the tensioning swing roller and prevent excessive downward swing from affecting the re-tensioning and reset.

[0112] like Figure 3 As shown, in some other embodiments of the invention, in order to provide a stable tension force, a tension spring 292 is also connected between the structural frame 21 and the swing frame 252. The tension spring 292 is used to generate a tendency force that causes the tension swing roller 253 to move to the downward swing position.

[0113] like Figure 6 As shown, in some other embodiments of the present invention, the position indicator structure 112 is an indicator hole provided on the carrier film 11, and the indicator hole is located on both sides of the sealing film setting area 111.

[0114] In some other embodiments of the present invention, the position indicator structure 112 is an indicator mark disposed on the carrier film, the indicator mark being located on both sides of the sealing film setting area 111, and the indicator mark can be printed or ground into a frosted mark.

[0115] In this invention, the specific structural form of the sealing film position detection mechanism 51 used to identify the position indicator structure 112 on the carrier film is not limited, and can be obtained from the prior art, such as using a photoelectric detection sensor, and identifying the position indicator structure 112 by the different light transmittance of other positions on the carrier film 11.

[0116] In this invention, the specific materials and structural forms of the carrier film 11 and the sealing film 12 are not limited, and can be selected from the prior art. The carrier film 11 can be a low-cost film type, such as PET film, selected from the prior art. The sealing film 112 can be a heat-sealing film, a pressure-sensitive adhesive sealing film, etc.

[0117] like Figure 6 , 7 As shown, in some other embodiments of the present invention, each sealing film setting area is attached with a sealing film 12, which can be applied to sealing the entire plate surface, such as a 96-hole plate or a 384-hole plate.

[0118] like Figure 8 As shown, in some other embodiments of the present invention, each sealing film setting area is attached with multiple strip-shaped sealing films arranged along the length or width direction of the carrier film, which can be used for sealing of connected pipes, such as eight-pipe connections.

[0119] like Figure 9 As shown, in some other embodiments of the present invention, each sealing film setting area is attached with multiple sealing films 12 arranged in a rectangular array, which can be applied to single tube seals arranged in an array on an orifice plate seat.

[0120] like Figure 7 As shown, in some other embodiments of the present invention, each sealing film 12 is provided with a tearing handle 121 to facilitate subsequent film tearing operations.

[0121] In this invention, the method of attachment between the sealing film 12 and the carrier film 11 is not limited and can be selected from the prior art, such as adsorption through electrostatic treatment, or the sealing film 12 being attached to the surface of the carrier film 11 by a micro-adhesive layer. Preferably, a dotted micro-adhesive layer can be used for adhesion, which not only improves the stability of the attachment position between the sealing film and the carrier film, but also ensures that the carrier film and the sealing film can be easily detached from each other under a small external force after sealing.

[0122] like Figure 1 As shown, in some other embodiments of the present invention, the pressurizing mechanism includes a pressure plate mounting frame 42, a vertical guide shaft 43, a compression spring 44, and a lifting mechanism 45. The lower end of the vertical guide shaft 43 is fixedly connected to the pressure plate 41. The vertical guide shaft 43 is movably inserted through the pressure plate mounting frame 42. The compression spring 44 is sleeved on the vertical guide shaft 43, and both ends of the compression spring 44 abut against the pressure plate 41 and the pressure plate mounting frame 42, respectively. The lifting mechanism 45 is used to drive the pressure plate mounting frame 42 to move up and down. The specific structure of the lifting mechanism is not limited and can be selected from the prior art. Considering space saving and smooth lifting, the lifting mechanism preferably adopts a vertically arranged screw mechanism. The pressure plate mounting frame is mounted on the screw nut, and the screw is driven to rotate by a motor and belt drive to realize the lifting of the pressure plate mounting frame.

[0123] In other embodiments of the present invention, the pressure plate 41 is provided with a heating element and a temperature detection element, which can provide a precise sealing temperature for the heat sealing method.

[0124] In other embodiments of the present invention, a sealing method includes the following steps:

[0125] Step 21: Sequentially place the sealing film that matches the porous plate to be sealed onto the carrier film to form a pre-cut roll sealing film;

[0126] Step 22: Place the pre-cut roll sealing film onto the film roll frame, and move the carrier film from the film roll frame sequentially between the first and second feed rollers, through the carrier film conveying roller group, the upper edge of the tension center roller, and the lower edge of the tension swing roller to the take-up roller;

[0127] Step 23: Place the perforated plate to be sealed onto the perforated plate holder, and the translation mechanism moves the perforated plate holder to the sealing position;

[0128] Step 24: The carrier film is fed through the feed roller group and wound up by the winding mechanism, and the tension swing roller is controlled to be in the middle position. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, the carrier film is pushed forward a set distance, and the corresponding sealing film is moved to the top of the perforated plate.

[0129] Step 25: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0130] Step 26: The membrane transfer mechanism drives the carrier membrane, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and drop position, completing the separation of the carrier membrane from the sealing film on the perforated plate.

[0131] Step 27: Remove the sealed perforated plate and place the next perforated plate to be sealed. The perforated plate transfer mechanism drives the perforated plate bracket and the perforated plate back to the sealing position.

[0132] Step 28: The winding mechanism reverses, causing the tension swing roller to be in the downward swing position;

[0133] Step 29: The feed roller group reverses, driving the carrier film back. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, it stops reversing. The winding mechanism rotates forward to wind up the film, controlling the tension swing roller to be in the middle position. Then it rotates forward again to push the carrier film forward a set distance, and the sealing film is moved to the top of the perforated plate.

[0134] Step 30: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism.

[0135] Step 31: The membrane transfer mechanism drives the carrier membrane, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and drop position, so as to complete the separation of the carrier membrane from the sealing film on the perforated plate and remove the sealed perforated plate.

[0136] Step 32, repeat steps 27-31 to complete the sealing operation of the next perforated plate.

[0137] In a continuous carrier film supply method, after each sealing, the carrier film needs to move forward with the perforated plate to detach from the sealing film. If adjacent sealing films on the carrier film are too close together, the next sealing film may be positioned beyond the sealing position. This necessitates a large gap between adjacent sealing films on the carrier film, affecting the total sealing film load. However, the sealing method described above employs a carrier film retraction approach, re-detecting the sealing film's position before precise delivery to match the perforated plate. This allows for a very small, even close, gap between adjacent sealing films, increasing the sealing film load on the carrier film. Furthermore, the high positioning accuracy of the sealing films effectively improves the sealing quality.

[0138] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A sealing method, characterized in that, A roll-to-roll sealing machine is used, the roll-to-roll sealing machine comprising: A pre-cut roll sealing film includes a carrier film, which is a continuous roll of film. The same surface of the carrier film has several sealing film placement areas arranged sequentially along the length of the carrier film. The carrier film also has a position indicator structure that matches the position of each sealing film placement area. Each sealing film placement area has at least one sealing film attached to it through a micro-adhesive layer. The sealing film can automatically detach from the carrier film after being combined with a perforated plate. Structural frame; A film transport mechanism for the extended transport of the pre-cut roll sealing film; A perforated plate transfer mechanism includes a perforated plate holder and a translation mechanism. The perforated plate holder is used to place a perforated plate to be sealed. The translation mechanism drives the perforated plate holder to move between a sealing position and a pick-up and place position. The moving direction of the perforated plate holder is consistent with the transport direction of the carrier film. It is used to move synchronously with the carrier film after sealing to achieve the separation of the sealing film. A sealing mechanism includes a pressure plate and a pressure applying mechanism, the pressure applying mechanism being used to apply pressure to the pressure plate, the pressure plate of the sealing mechanism being located directly above the sealing position, and the carrier film of the pre-cut roll sealing film extending from between the pressure plate and the perforated plate; The carrier film transport mechanism includes: A film holder for holding the pre-cut roll sealing film; The feed roller assembly includes a first feed roller, a second feed roller, and a first rotary drive mechanism. The first feed roller and the second feed roller press against each other, and the first rotary drive mechanism drives the first feed roller and the second feed roller to rotate relative to each other. Film carrier conveying roller assembly, which is used for conveying the film carrier; A sealing film position detection mechanism is used to identify the position indication structure on the carrier film; The winding mechanism includes a winding wheel and a second rotary drive mechanism, wherein the second rotary drive mechanism drives the winding wheel to rotate. The film transport mechanism further includes a tensioning roller assembly, which includes a tensioning center roller, a swing frame, a tensioning swing roller, a position detection rod, and a position detection sensor assembly. The tensioning center roller is rotatably mounted on the structural frame. One end of the swing frame is rotatably mounted on the end of the tensioning center roller. The tensioning swing roller is rotatably mounted on the other end of the swing frame. The position detection rod is connected to the swing frame. The position detection sensor assembly is mounted on the structural frame and is used to detect the swing angle of the position detection rod. The carrier film of the pre-cut roll sealing film is sequentially passed from the film roll frame between the first feed roller and the second feed roller, through the carrier film conveying roller group, the upper edge of the tensioning center roller, and the lower edge of the tensioning swing roller to the take-up roller. The winding mechanism is reversible and is used to loosen the carrier film, so that the tension swing roller swings down to the position where the limiting structure abuts the structural frame. When the limiting structure abuts the structural frame, the carrier film is in a loose state to allow the feed roller group to drive the carrier film back. The position detection sensor group works in conjunction with the position detection rod to detect the three position states of the tensioning swing roller: the upper swing position, the middle position, and the lower swing position. The sealing method includes the following steps: Step 21: Sequentially place the sealing film that matches the porous plate to be sealed onto the carrier film to form a pre-cut roll sealing film; Step 22: Place the pre-cut roll sealing film onto the film roll frame, and move the carrier film from the film roll frame sequentially between the first and second feed rollers, through the carrier film conveying roller group, the upper edge of the tension center roller, and the lower edge of the tension swing roller to the take-up roller; Step 23: Place the perforated plate to be sealed onto the perforated plate holder, and the translation mechanism moves the perforated plate holder to the sealing position; Step 24: The carrier film is fed through the feed roller group and wound up by the winding mechanism, and the tension swing roller is controlled to be in the middle position. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, the carrier film is pushed forward a set distance, and the corresponding sealing film is moved to the top of the perforated plate. Step 25: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism. Step 26: The carrier film transfer mechanism drives the carrier film, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and drop position, completing the separation of the carrier film from the sealing film on the perforated plate. Step 27: Remove the sealed perforated plate and place the next perforated plate to be sealed. The perforated plate transfer mechanism drives the perforated plate bracket and the perforated plate back to the sealing position. Step 28: The winding mechanism reverses, causing the tension swing roller to be in the lower position. At this time, the carrier film is relaxed, and the limiting structure of the tension swing roller abuts against the structural frame. Step 29: The feed roller group reverses, driving the carrier film back. After the sealing film position detection mechanism detects the position indicator structure on the carrier film, it stops reversing. The winding mechanism rotates forward to wind up the film, controlling the tension swing roller to be in the middle position, and the carrier film is restored to tension. Then, it rotates forward again to push the carrier film forward a set distance, and the sealing film is moved directly above the perforated plate. Step 30: The pressure plate is driven by the pressure mechanism to apply pressure from above the carrier film to seal the film. After sealing, the pressure plate is reset by the pressure mechanism. Step 31: The carrier film transfer mechanism drives the carrier film, and the perforated plate transfer mechanism drives the sealed perforated plate and perforated plate bracket to move synchronously from the sealing position to the pick-up and put-away position, completing the separation of the carrier film from the sealing film on the perforated plate and removing the sealed perforated plate. Step 32, repeat steps 27-31 to complete the sealing operation of the next perforated plate.

2. The sealing method according to claim 1, characterized in that, The sealing films attached to adjacent sealing film areas on the carrier film are separated from each other.

3. The sealing method according to claim 1, characterized in that, The pressurizing mechanism includes a pressure plate mounting frame, a vertical guide shaft, a compression spring, and a lifting mechanism. The lower end of the vertical guide shaft is fixedly connected to the pressure plate. The vertical guide shaft is movably inserted through the pressure plate mounting frame. The compression spring is sleeved on the vertical guide shaft. The two ends of the compression spring respectively abut against the pressure plate and the pressure plate mounting frame. The lifting mechanism is used to drive the pressure plate mounting frame to move up and down.

4. The sealing method according to claim 3, characterized in that, The pressure plate is equipped with heating elements and temperature detection elements.

5. The sealing method according to claim 1, characterized in that, The sealing film is a heat-sealing film or a pressure-sensitive adhesive sealing film.

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