Sealing machine

Abstract

The invention relates to the technical field of packaging, and discloses a sealing machine which comprises a base, a film winding and unwinding mechanism, a sealing mechanism and a controller, the film winding and unwinding mechanism comprises a supporting plate, a film unwinding disc, a film winding disc, a film pulling roller and a plurality of film guiding rollers, the supporting plate is installed on the base, and the film unwinding disc and the film winding disc are rotatably connected to a first surface; all the film guide rollers are arranged on the first surface in the first direction, the film drawing rollers are arranged on the first surface in the first direction, and the film drawing rollers and the closest film guide roller are located on the same horizontal line; the sealing mechanism is arranged on the base and located on one side of the first surface, and the sealing mechanism is located between the film drawing roller and the film guiding roller and used for cutting and sealing the penetrating packaging film; the controller is configured to control unwinding of the film unwinding disc and winding of the film winding disc. According to the sealing machine, integrated operation of automatic film unwinding, winding and film sealing can be achieved, manual operation is not needed, then labor intensity can be relieved, and production efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging, in particular to a sealing machine. Background Art

[0002] In order to extend the shelf life of food and isolate it from external pollution, existing food container packaging, in addition to installing a lid, also requires aluminum foil film to be sealed at the mouth of some foods with high sealing requirements (such as snack cans, medicine bottles, etc.) to achieve the purpose of isolating from the outside air, and the aluminum foil film is torn off when eating.

[0003] The existing sealing method requires manual insertion of aluminum foil film, and then the aluminum foil film at the mouth of the food container is instantly heated by a sealing machine to fuse at the mouth of the food container, thereby achieving the sealing function. However, this production method requires manual insertion of aluminum foil film, which consumes a lot of manpower and material resources and has low production efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the object of the present invention is to provide a sealing machine that can realize automatic sealing and improve production efficiency.

[0005] The present application embodiment provides a sealing machine having a first direction and a second direction intersecting each other, including:

[0006] Pedestal;

[0007] A film-retracting and unreeling mechanism, comprising a support plate, a film-releasing disk, a film-collecting disk, a film-drawing roller, and a plurality of film-guiding rollers, wherein the support plate is mounted on the base, and the support plate has a first surface and a second surface opposite to each other in the first direction, the film-releasing disk and the film-collecting disk are rotatably connected to the first surface, all the film-guiding rollers are arranged on the first surface along the first direction, and the film-drawing roller is arranged on the first surface along the first direction;

[0008] A sealing mechanism, which is arranged on the base and located on one side of the first surface, and the sealing mechanism is located between the film-drawing roller and the film-guiding roller, and is used for cutting and sealing the passing packaging film;

[0009] A controller, wherein the controller is configured to: control the film-pulling roller and the film-collecting disk to reel in after the sealing mechanism performs film cutting and film sealing each time, and control the film-releasing disk to unreel during the reeling process, and control the film-releasing disk to stop unreeling and the film-collecting disk to stop reeling before the next film cutting and film sealing.

[0010] In one embodiment, the sealing machine also includes a detection mechanism, which is electrically connected to the controller and is used to detect when the film pulling roller and the film receiving disk are winding after the sealing mechanism cuts the film and seals the film each time, and sends a unwinding signal to the controller to control the unwinding of the film unwinding disk, and before the next film cutting and sealing, sends a stop unwinding signal and a stop winding signal to the controller to control the film unwinding disk and the film receiving disk to stop winding.

[0011] In one embodiment, the sealing machine further comprises a detection mechanism, and the detection mechanism comprises:

[0012] a swing arm swingably connected to the first surface;

[0013] a film feeding detection roller, which is arranged on the first surface along the first direction, and one end of the film feeding detection roller close to the swing arm is connected to the swing arm;

[0014] A sensing unit, comprising a first sensing member and a second sensing member connected to the first surface, wherein the first sensing member and the second sensing member are respectively arranged on two sides of an end of the swing arm away from the film feeding detection roller and are located on a swing path of the swing arm, and the first sensing member is located below the second sensing member;

[0015] Wherein, the first sensing element and the second sensing element are both electrically connected to the controller. When the film pulling roller and the film receiving disk are reeled up after the sealing mechanism performs film cutting and sealing each time, the swing arm is traction-driven and swings upward and contacts the second sensing element, and the film unwinding disk starts to unwind. When the film unwinding disk is unwinding, and the swing arm swings downward under its own weight and contacts the first sensing element, the film unwinding disk stops unwinding.

[0016] In one embodiment, the detection mechanism further includes a film break detection roller, which is disposed on the first surface along the first direction and above the film drawing roller, and is used to perform film break detection on the packaging film wound around it.

[0017] In one embodiment, all the film guide rollers are arranged alternately on the first surface in sequence along the second direction, and the film drawing roller and the film guide roller closest thereto are on the same horizontal line.

[0018] In one embodiment, the sealing machine further comprises a power mechanism, and the power mechanism comprises:

[0019] a first power member, which is fixed on the second surface and electrically connected to the controller, and is used to drive the film placing disk to rotate so as to place and unwind the required packaging film;

[0020] The second power member is fixed on the second surface and electrically connected to the controller, and is used to drive the film collection disk and the film drawing roller to rotate synchronously so as to reel up the packaging film after die cutting.

[0021] In one embodiment, the sealing machine has a third direction, and the first direction, the second direction and the third direction intersect each other;

[0022] The sealing mechanism comprises:

[0023] A lower template is arranged on the base, the lower template is provided with a first through hole penetrating along the third direction, and the base is provided with a through hole penetrating along the third direction and corresponding to the first through hole one by one;

[0024] an upper template, which is arranged on one side of the lower template along the third direction and connected to the lower template, a passage space for the packaging film to pass through is formed between the upper template and the lower template, and the passage space has through holes on both sides in the second direction for the packaging film to pass through; and the upper template is provided with a second through hole penetrating along the third direction, and the second through hole is connected to the first through hole;

[0025] A film cutting assembly comprises a connecting frame, a film cutting component and a first driving component. The connecting frame is arranged on a side of the upper template away from the lower template. The film cutting component is connected to an end of the connecting frame close to the upper template, and the film cutting component is opposite to the second perforation. The first driving component is electrically connected to the controller and is used to drive the connecting frame to move back and forth along the third direction to drive the film cutting component to cut the packaging film passing through the travel space.

[0026] In one embodiment, the sealing mechanism further includes a film sealing assembly, the film sealing assembly including a guide sleeve, a film sealing member and a second driving member, the guide sleeve passes through the connecting frame and is arranged in the film cutting member, the film sealing member is connected to one end of the guide sleeve close to the film cutting member along the third direction, and the diameter of the film sealing member is smaller than the diameter of the film cutting member, so that under the pulling of the guide sleeve, the film sealing member can be stored in the film cutting member, the output shaft of the second driving member is connected to the end of the guide sleeve away from the film cutting member, the output shaft of the first driving member is connected to the second driving member, and the second driving member is fixedly connected to the connecting frame, the first driving member can drive the second driving member, the connecting frame and the film cutting member to make a reciprocating motion along the third direction, and the second driving member drives the guide sleeve and the film sealing member to make a reciprocating motion relative to the film cutting member along the third direction.

[0027] In one embodiment, the film sealing assembly further comprises an end plate, wherein the end plate is connected to one end of the guide sleeve away from the film cutting member along the third direction, so that an enclosed space is formed inside the guide sleeve under the sealing of the end plate and the film sealing member, and an opening is provided on the end plate extending through the third direction, wherein the opening is used for connecting an external vacuum pump, and a plurality of adsorption holes are provided on the film sealing member and are radially distributed therein, wherein the adsorption holes are connected to the interior of the guide sleeve.

[0028] In one embodiment, the lower template is provided with a first groove on the side away from the base along the third direction, and the first groove is connected to the first perforation. The upper template is provided with a second groove on the side facing the lower template, and the second groove is connected to the second perforation. The second groove and the first groove enclose the passage space, and the through holes for the packaging film to pass through are formed on both sides in the second direction.

[0029] In one embodiment, the sealing mechanism further comprises:

[0030] A mounting plate, which is arranged on a side of the upper template away from the lower template, the first driving member is mounted on the mounting plate, and an output shaft of the first driving member passes through the mounting plate and is connected to the second driving member;

[0031] A guide rod is arranged between the mounting plate and the upper template along the third direction, and the connecting frame is slidably connected to the guide rod.

[0032] In one embodiment, a film collecting roller is further included. The film collecting roller is arranged on one side of the first surface along the first direction and is located between the film collecting disk and the film drawing roller, and is used to guide the cut packaging film to the film collecting disk.

[0033] Compared with the prior art, the above technical solution provided by the embodiment of the present application has the following beneficial effects:

[0034] The packaging film roll is installed on the film placing disk, and one end of the packaging film is pulled to pass through the film guide roller, the sealing mechanism, and the film drawing roller in sequence, and then wound on the film receiving disk. When the film is started to be sealed at the mouth of the food container, the film receiving disk and the film drawing roller rotate synchronously to pull the packaging film through the sealing mechanism, and the packaging film is fused at the mouth of the food container under the action of the sealing mechanism, and the packaging film after die cutting is wound onto the winding disk, thereby realizing the integrated operation of automatic film placing, winding and sealing, without the need for manual operation, thereby reducing labor intensity and improving production efficiency.

[0035] In addition, after the sealing mechanism cuts and seals the film each time, the controller controls the film pulling roller and the film collecting disk to rotate synchronously to reel up the packaging film after cutting, and controls the film unwinding disk to unwind during this process. When the film is unwinded to the required length and before the next film cutting and sealing, the controller controls the film unwinding disk to stop unwinding and the film collecting disk to stop rewinding, thereby realizing the linkage control of film unwinding and film collecting without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of an embodiment of a sealing machine of the present application;

[0037] Figure 2 It is a structural schematic diagram of another embodiment of a sealing machine of the present application;

[0038] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0039] Figure 4 It is a structural schematic diagram of another embodiment of a sealing machine of the present application;

[0040] Figure 5 It is a structural schematic diagram of a sealing mechanism in a sealing machine of the present application.

[0041] Numbers in the figure:

[0042] 100, packaging film; 10, base; 20, film-retracting and -releasing mechanism; 21, support plate; 21a, first surface; 21b, second surface; 22, film-releasing plate; 23, film-collecting plate; 231, rotating shaft; 232, first limiting plate; 233, second limiting plate; 24, film-guiding roller; 25, film-drawing roller; 26, mounting seat; 27, auxiliary roller; 28, film-collecting roller; 30, sealing mechanism; 31, lower template; 32, upper template; 33, film-cutting assembly; 331, connecting frame; 331a, slide plate; 331b, connecting plate; 331c, connecting rod; 332, film-cutting member; 333, first driving member; 34, film-sealing assembly; 341, guide sleeve; 342, film-sealing member; 343, second driving member; 344, end plate; 344a, opening; 35, mounting plate; 36, guide rod; 40, detection mechanism; 41, swing arm; 42, film feeding detection roller; 43, sensing unit; 431, first sensing member; 432, second sensing member; 44, film breaking detection roller; 50, power assembly; 51, first power member; 52, second power member; 53, first driving wheel; 54, first driven wheel; 55, first transmission belt; 56, second driving wheel; 57, second driven wheel; 58, third driven wheel; 59, second transmission belt; 60, travel space; 70, controller; 80, through hole; Z, first direction; X, second direction; Y, third direction. DETAILED DESCRIPTION

[0043] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0044] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides a sealing machine, which has a first direction Z and a second direction X intersecting each other. The sealing machine includes a base 10 , a film retracting and releasing mechanism 20 , a sealing mechanism 30 and a controller 70 .

[0046] Specifically, the film-retracting and unreeling mechanism 20 includes a support plate 21, a film-releasing disk 22, a film-collecting disk 23, a film-drawing roller 25, and a plurality of film-guide rollers 24. The support plate 21 is mounted on the base 10, and the support plate 21 has a first surface 21a and a second surface 21b opposite to each other in the first direction Z. The film-releasing and unreeling disk 22 and the film-collecting disk 23 are rotatably connected to one side of the first surface 21a. All the film-guide rollers 24 are arranged on the first surface 21a along the first direction Z, and the film-drawing roller 25 is arranged on the first surface 21a along the first direction Z. The sealing mechanism 30 is arranged on the base 10 and is located on one side of the first surface 21a. The sealing mechanism 30 is located between the film-drawing roller 25 and the film-guide roller 24, and is used to cut and seal the passing packaging film. The controller 70 is configured to control the film pulling roller 25 and the film collecting disk 23 to rewind after each film cutting and sealing by the sealing mechanism, and to control the film placing disk 22 to unwind during the rewinding process, and to control the film placing disk 22 to stop unwinding and the film collecting disk to stop rewinding before the next film cutting and sealing.

[0047] In the sealing machine of the present application, the packaging film roll is installed on the film placing disk 22, and one end of the packaging film 100 is pulled to pass through the film guide roller 24, the sealing mechanism 30, and the film drawing roller 25 in sequence, and then wound on the film receiving disk 23. When the film is started to be sealed at the mouth of the food container, the controller 70 controls the film receiving disk 23 and the film drawing roller 25 to rotate synchronously to pull the packaging film through the sealing mechanism 30, and the packaging film is fused at the mouth of the food container under the action of the sealing mechanism 30, and the packaging film after die cutting is wound onto the winding disk, thereby realizing the integrated operation of automatic film placing, winding and sealing, without the need for manual operation, thereby reducing labor intensity and improving production efficiency.

[0048] Here, it should be noted that the first direction Z and the second direction X mentioned above are virtual reference lines for the convenience of describing the positional relationship between the components. However, for the sake of clarity, this embodiment uses the support plate 21 as a reference object, and the first direction Z refers to the width direction of the support plate 21 (refer to Figure 2 The second direction X refers to the length direction of the support plate 21 (for details, please refer to Figure 2 in the X direction).

[0049] Exemplarily, the film placing disk 22 is used to automatically place the rolled-up packaging film, and the film winding roll is used to automatically wind up the packaging film after film cutting. Both need to rotate to achieve film placing or winding. In this regard, the film placing disk 22 and the film winding disk 23 can adopt the same structure. For the sake of clarity, the following description takes the structure of the film winding disk 23 as an example. The specific structure of the film placing disk 22 can refer to the film winding disk 23, which will not be described in detail here. Among them, the film winding disk 23 includes a rotating shaft 231 and a first limiting plate 232 and a second limiting plate 233 sleeved on the rotating shaft 231. The end of the rotating shaft 231 close to the support plate 21 is connected to the first surface 21a and extends along the first direction Z. The first limiting plate 232 and the second limiting plate 233 are parallel to each other and define a winding space for winding up the packaging film. In addition, it should be noted that, during the sealing process, the packaging film needs to be transported to the sealing mechanism 30 first, and after the sealing is completed, the cut packaging film is pulled to collect the film. Based on this, the film collection disk 23 and the film winding disk are not synchronously operated, and two different power components can be used to drive them separately, and the details can be referred to the following embodiment.

[0050] Exemplarily, the guide roller is used to guide the packaging film released from the film plate, so that the packaging film passes through the sealing mechanism 30 and the film-pulling roller 25 in sequence, ensuring that the packaging film is smoothly transported to the sealing mechanism 30. That is to say, the multiple guide rollers in this embodiment play a guiding role for the packaging film, but in order to avoid film breakage or wrinkles in the packaging film during the pulling process, the multiple guide rollers need to be arranged in sequence along the second direction X in an interlaced manner, so that the packaging film passing through can maintain a certain tension, so that the packaging film can be pulled more smoothly. In addition, the multiple rollers mentioned above refer to two or more rollers, which can be determined according to actual conditions and are not limited to this.

[0051] Exemplarily, the film-drawing roller 25 is used to pull the packaging film coming out of the sealing mechanism 30 to cooperate with the rotation of the film-collecting disk 23 to realize the film collection of the packaging film. In this regard, in actual applications, the film-drawing roller 25 and the film-collecting disk 23 need to maintain synchronous rotation, so that while the film-drawing roller 25 is drawing the film, the film-collecting disk 23 can synchronously collect the film to prevent the speed difference between the two from affecting the normal film collection. Based on this, the film-drawing roller 25 and the film-collecting disk 23 can be driven by the same driving component, but are not limited to this. In addition, in the present embodiment, the film-drawing roller 25 and the closest film guide roller 24 are on the same horizontal line, so that the packaging film entering the sealing machine is always horizontal, which can avoid unevenness and affect the quality of sealing.

[0052] Please refer to Figure 2 and Figure 3 In one embodiment, the sealing machine further includes a detection mechanism 40, which is electrically connected to the controller 70, and is used to detect when the film-drawing roller 25 and the film-receiving disk 23 are reeled after the sealing mechanism 30 performs film cutting and sealing each time, and sends an unwinding signal to the controller 70 to control the film-unwinding disk 22, and sends a stop unwinding signal and a stop rewinding signal to the controller 70 before the next film cutting and sealing, so as to control the film-unwinding disk 22 to stop unwinding and the film-receiving disk 23 to stop rewinding. In other words, the detection mechanism 40 is used to detect the unwinding signal and the rewinding signal of the packaging film, and transmit them to the controller 70, and the controller 70 controls the automatic unwinding and rewinding of the packaging film according to the received signal, so as to realize the linkage control of film unwinding and film rewinding. In addition, it should be noted that the detection mechanism 40 can adopt the detection component commonly used in the prior art to detect the unwinding or rewinding signal, and can also adopt the specific structure in the following embodiment, which is not limited to this.

[0053] Specifically, the detection mechanism 40 includes a swing arm 41, a film feeding detection roller 42, and a sensing unit 43. The swing arm 41 is swingably connected to one side of the first surface 21a. The film feeding detection roller 42 is arranged on one side of the first surface 21a along the first direction Z, and one end of the film feeding detection roller 42 close to the swing arm 41 is connected to the swing arm 41. The sensing unit 43 includes a first sensing member 431 and a second sensing member 432 connected to the first surface 21a. The first sensing member 431 and the second sensing member 432 are arranged on both sides of the end of the swing arm 41 away from the film feeding detection roller 42, and are located on the swing path of the swing arm 41. The first sensing member 431 is located below the second sensing member 432. One end of the packaging film 100 is sequentially wound around the film guide roller 24, the film feeding detection roller 42, and then around the sealing mechanism 30. Among them, the first sensing element 431 and the second sensing element 432 are communicatively connected with the film unwinding disk 22, and the first sensing element 431 and the second sensing element 432 are both electrically connected to the controller 70. When the sealing mechanism 30 cuts the film and seals the film each time, when the film pulling roller 25 and the film receiving disk 23 are reeled up, the swing arm 41 is traction-forced and swings upward and contacts the second sensing element 432, and the film unwinding disk 22 starts to unwind; when the film unwinding disk 22 is unwinding, and the swing arm 41 swings downward under the action of its own weight and contacts the first sensing element 431, the film unwinding disk 22 stops unwinding.

[0054] The film feeding detection roller 42 is pulled by the film feeding detection roller 42 to release the film. As the packaging film is wound around the film feeding detection roller 42, the film feeding detection roller 42 is swingably connected to the support plate 21 through the swing arm 41. As the packaging film is pulled, it is in a tensioned state, so that the film feeding detection roller 42 is pulled by the packaging film and swings upward until the swing arm 41 contacts the first sensing element 431, and the film releasing disc 22 starts to be driven to unwind. At this time, the packaging film is in a relaxed state, and the film feeding detection roller 42 moves downward due to its own weight, thereby driving the swing arm 41 to swing downward until the swing arm 41 contacts the second sensing element 432, and the film releasing disc 22 stops unwinding, so that the packaging film can be accurately released according to the set length without manual operation. The degree of automation is high, which is conducive to improving production efficiency.

[0055] It should be noted that the first sensing element 431 and the second sensing element 432 may adopt proximity sensors or transmission sensors that can sense the swing signal of the swing arm 41 in the prior art, and this is not limited.

[0056] In one embodiment, the detection mechanism 40 further includes a film break detection roller 44, which is arranged on the first surface 21a along the first direction Z and is located above the film drawing roller 25, and is used to detect the film break of the packaging film wound around it. That is to say, in the process of the film drawing roller 25 and the film receiving disk 23 rotating to pull the packaging film, the packaging film is wound around the film break detection roller 44, so that the film break detection roller 44 can be used to detect whether the packaging film is broken. If the film break detection roller 44 detects that the packaging film passing through it is broken, the controller 70 controls the sealing machine to stop and sends an alarm signal to prompt the staff to handle it, thereby avoiding the need to implement subsequent film receiving and sealing operations due to the break of the packaging film, which affects the sealing quality.

[0057] In addition, in one embodiment, a mounting seat 26 and an auxiliary roller 27 are further included. The mounting seat 26 is arranged on the first surface 21a along the first direction Z and is connected to the support plate 21. The auxiliary roller 27 and the film drawing roller 25 are arranged side by side in the mounting seat 26. The auxiliary roller 27 is located on the side of the mounting seat 26 close to the film guide roller 24, and a plurality of convex points are arranged on the surface of the auxiliary roller 27. In this way, after the packaging film 100 is cut, it is wound around the auxiliary roller 27 and contacts the convex points on the surface of the auxiliary roller 27, so that impurities attached to the packaging film 100 can be removed for subsequent winding.

[0058] Please refer to Figure 4 In one embodiment, the sealing machine further includes a power mechanism, which includes a first power member 51 and a second power member 52. The first power member 51 is fixed on the second surface 21b and electrically connected to the controller 70, and is used to drive the film-releasing disk 22 to rotate to unwind the required packaging film. The second power member 52 is fixed on the second surface 21b and electrically connected to the controller 70, and is used to drive the film-receiving disk 23 and the film-drawing roller 25 to rotate synchronously to rewind the packaging film after die cutting.

[0059] In practical applications, the output shaft of the first power member 51 is provided with a first driving wheel 53, and the end of the rotating shaft 231 of the film placing disk 22 located on the second surface 21b is provided with a first driven wheel 54, and a first transmission belt 55 is provided between the first driven wheel 54 and the first driving wheel 53, so that when the first power member 51 drives the first driving wheel 53 to rotate, the first transmission belt 55 is driven to operate, and then the film placing disk 22 can be driven to rotate to realize automatic film placing; similarly, the output shaft of the second power member 52 is provided with a second driving wheel 56, and the film collecting disk 23 is provided with a second driving wheel 57. A second driven wheel 57 is provided at one end of the rotating shaft 231 located on the second surface 21b side, a third driven wheel 58 is provided at one end of the film-drawing roller 25 that penetrates the support plate 21 located on the second surface 21b side, and a second transmission belt 59 is wound around the second driving wheel 56, the second driven wheel 57 and the third driven wheel 58, so that when the second power member 52 drives the second driving wheel 56 to rotate, the second transmission belt 59 is driven to operate, and then the film-drawing roller 25 and the film-collecting disk 23 can be driven to rotate synchronously to prevent the speed difference between the two from affecting the normal film collection. In addition, the first power member 51 and the second power member 52 can both use servo motors, or other power components in the prior art, which are not limited to this.

[0060] In one embodiment, the sealing machine has a third direction Y, and the first direction Z, the second direction X and the third direction Y intersect each other. The third direction Y here can be used as a reference for the support plate 21, and specifically can refer to the height direction of the support plate 21 (specifically, refer to Figure 2 Y direction in ).

[0061] Please refer to Figure 5 , wherein the sealing mechanism 30 includes a lower template 31, an upper template 32 and a film cutting assembly 33. The lower template 31 is arranged on the base 10, and the lower template 31 is provided with a first through hole penetrating along the third direction Y. The base 10 is provided with a through hole penetrating along the third direction Y and corresponding to the first through hole. The upper template 32 is arranged on one side of the lower template 31 along the third direction Y and is connected to the lower template 31. A passage space 60 for the packaging film to pass through is formed between the upper template 32 and the lower template 31. The two sides of the passage space in the second direction have through holes 80 for the packaging film to pass through. The upper template 32 is provided with a second through hole penetrating along the third direction Y, and the second through hole is connected to the first through hole. The film cutting assembly 33 includes a connecting frame 331, a film cutting component 332 and a first driving component 333. The connecting frame 331 is arranged on the side of the upper template 32 away from the lower template 31. The film cutting component 332 is connected to the end of the connecting frame 331 close to the upper template 32, and the film cutting component 332 is opposite to the second perforation. The first driving component 333 is electrically connected to the controller 70, and is used to drive the connecting frame 331 to move back and forth along the third direction Y, so as to drive the film cutting component 332 to cut the packaging film passing through the travel space 60.

[0062] Illustratively, the mouth of the food container to be sealed is extended into the through hole so that the mouth of the food container contacts the packaging film passed through the travel space 60, and then the first driving member 333 drives the connecting frame 331 to approach the base 10 along the third direction Y, so as to drive the film cutting member 332 connected to the connecting frame 331 to pass through the second perforation, the first perforation and the through hole in sequence, and then cut the packaging film, so that a film of the same shape and size is attached to the mouth of the food container, thereby completing the film cutting action of the packaging film. The structure is simple and the operation is convenient, and the film can be automatically loaded without manual operation, which is conducive to improving production efficiency.

[0063] Please refer to Figure 5 In one embodiment, the sealing mechanism 30 further includes a film sealing assembly 34, which includes a guide sleeve 341, a film sealing member 342 and a second driving member 343. The guide sleeve 341 penetrates the connecting frame 331 and is arranged in the film cutting member 332. The film sealing member 342 is connected to the end of the guide sleeve 341 close to the film cutting member 332 along the third direction Y, and the diameter of the film sealing member 342 is smaller than the diameter of the film cutting member 332, so that the film sealing member 342 can be received in the film cutting member 332 under the pulling of the guide sleeve 341. The output shaft of the second driving member 343 is connected to the end of the guide sleeve 341 away from the film cutting member 332, the output shaft of the first driving member 333 is connected to the second driving member 343, and the second driving member 343 is fixedly connected to the connecting frame 331, the first driving member 333 can drive the second driving member 343, the connecting frame 331 and the film cutting member 332 to make a reciprocating motion along the third direction Y, and the second driving member 343 drives the guide sleeve 341 and the film sealing member 342 to make a reciprocating motion along the third direction Y relative to the film cutting member.

[0064] In this embodiment, the end of the guide sleeve 341 close to the film cutting member 332 is connected to the film sealing member 342, and the guide sleeve 341 is passed through the connecting frame 331 and is arranged in the film cutting member 332. Since the diameter of the film sealing member 342 is smaller than that of the film cutting member 332, when the second driving member 343 drives the guide sleeve 341 to move along the third direction Y, the film sealing member 342 can be received in the film cutting member 332. In actual application, when the sealing operation is performed, the second driving member 343 is first used to drive the guide sleeve 341 to move upward along the third direction Y to drive the film sealing member 342 to be retracted into the film cutting member 332. At this time, the end surface of the film sealing member 342 is flush with the film cutting surface of the film cutting member 332. Then, the first driving member 333 is used to drive the connecting frame 331 to move downward along the third direction Y to drive the connecting frame 331 to continuously approach the base 10, so that the guide sleeve 341, the film sealing member 342 and the film cutting member 332 form a whole and pass through the second through hole, the first through hole in sequence. And through holes, and then cut the packaging film, and then stick a film of the same shape and size at the bottle mouth, and then use the second driving member 343 to drive the guide sleeve 341 to move downward along the third direction Y, so as to drive the film sealing member 342 to extend from the film cutting member 332 and press the film, so that the film is fused at the bottle mouth under the high temperature generated by the film sealing member 342, thereby completing the sealing operation of the container bottle. The operation is convenient, and the film cutting and sealing are cleverly integrated into one. The structure is compact and the degree of automation is high, which can effectively improve the production efficiency.

[0065] It should be noted that, since the film cutting and sealing of the packaging film are performed in steps (i.e., first the film cutting and then the film sealing), and the film sealing member 342 is extended outside the film cutting member 332 during the film sealing process, the heat generated by the film sealing member 342 will not be conducted to the film cutting member 332. In this regard, the film cutting member 332 in this embodiment can be made of metal material, replacing the traditional solution of making the cutter into a ceramic knife due to concerns about the cutter being heated by the magnetic induction coil. In addition, the film sealing member 342 can adopt the electromagnetic induction film sealing component commonly used for sealing in the prior art. The specific structure can refer to the prior art and will not be described in detail.

[0066] In one embodiment, the film sealing assembly 34 also includes an end plate 344, which is connected to one end of the guide sleeve 341 along the third direction Y away from the film cutting member 332, so that a closed space is formed inside the guide sleeve 341 under the sealing of the end plate 344 and the film sealing member 342, and an opening 344a is provided on the end plate 344 and passes through the third direction Y, and the opening 344a is used to connect an external vacuum pump, and a plurality of adsorption holes distributed along the radial direction of the film sealing member 342 are provided on the film sealing member 342, and the adsorption holes are connected to the interior of the guide sleeve 341. That is, by connecting the air pipe to the opening 344a, the external vacuum pump is connected to the inside of the guide sleeve 341. When the film cutting member 332 is used to cut the packaging film, the vacuum pump generates a vacuum inside the guide sleeve 341. Since the end surface of the film sealing member 342 is in contact with the film, the film is adsorbed on the end surface of the film sealing member 342 under the action of the vacuum, thereby ensuring that the film will not deviate from the bottle mouth during the sealing process of the film sealing member 342, which is conducive to improving the sealing quality. After the sealing is completed, compressed air can be blown into the inside of the guide sleeve 341 to prevent the film from being adsorbed, and the film can also be quickly cooled so that it can be firmly attached to the bottle mouth.

[0067] In one embodiment, a first groove is provided on the side of the lower template 31 away from the base 10 along the third direction Y, and the first groove is connected to the first perforation. A second groove is provided on the side of the upper template 32 facing the lower template 31, and the second groove is connected to the second perforation. The second groove and the first groove enclose a passage space 60, and through holes are formed on both sides in the second direction for the packaging film to pass through.

[0068] In one embodiment, the sealing mechanism 30 further includes a mounting plate 35 and a guide rod 36. The mounting plate 35 is disposed on the side of the upper template 32 away from the lower template 31. The first driving member 333 is mounted on the mounting plate, and the output shaft of the first driving member 333 passes through the mounting plate and is connected to the second driving member 343. The guide rod 36 is disposed between the mounting plate 35 and the upper template 32 along the third direction Y, and the connecting frame 331 is slidably connected to the guide rod 36. In this way, when the first driving member 333 is used to drive the connecting frame 331 to move, the connecting frame 331 can move along the extension direction of the guide rod 36, and can achieve a precise guiding effect, ensuring that the film cutting member 332 and the film sealing member 342 accurately cut and seal the film, and avoiding position deviation and failure to seal.

[0069] In addition, the connecting frame 331 includes a slide plate 331a and a connecting plate 331b which are arranged opposite to each other. The slide plate 331a is slidably connected to the guide rod 36. The connecting plate 331b is located below the slide plate 331a, and a connecting rod 331c is provided between the slide plate 331a and the connecting plate 331b. The second driving member 343 is installed on the slide plate 331a. The film cutting member 332 is connected to the surface of the connecting plate 331b away from the slide plate 331a, thereby fixing the film cutting member 332 to the connecting frame 331; the guide sleeve 341 passes through the connecting plate 331b and is connected to the output shaft of the second driving member 343 which passes through the slide plate 331a. The guide sleeve 341 can slide along the Y direction relative to the connecting plate 331b.

[0070] In one embodiment, a film collection roller 28 is further included, which is disposed on the first surface 21a along the first direction Z and is located between the film collection disk 23 and the film drawing roller 25, and is used to guide the cut packaging film to the film collection disk 23. In this way, the film collection roller 28 can be used to guide the cut packaging film to the film collection disk 23, so that the film collection disk 23 can collect the film more smoothly, thereby preventing the packaging film from breaking during the film collection process.

[0071] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sealing machine having a first direction and a second direction intersecting each other, characterized in that: include: Pedestal; A film-retracting and unreeling mechanism, comprising a support plate, a film-releasing disk, a film-collecting disk, a film-drawing roller, and a plurality of film-guiding rollers, wherein the support plate is mounted on the base, and the support plate has a first surface and a second surface opposite to each other in the first direction, the film-releasing disk and the film-collecting disk are rotatably connected to the first surface, all the film-guiding rollers are arranged on the first surface along the first direction, and the film-drawing roller is arranged on the first surface along the first direction; A sealing mechanism, which is arranged on the base and located on the first surface, and the sealing mechanism is located between the film-drawing roller and the film-guiding roller, and is used for cutting and sealing the passing packaging film; A controller, wherein the controller is configured to: control the film-pulling roller and the film-collecting disk to reel in after the sealing mechanism performs film cutting and film sealing each time, and control the film-releasing disk to unreel during the reeling process, and control the film-releasing disk to stop unreeling and the film-collecting disk to stop reeling before the next film cutting and film sealing.

2. The sealing machine according to claim 1, characterized in that: The sealing machine also includes a detection mechanism, which is electrically connected to the controller and is used for detecting when the film-pulling roller and the film-receiving disk are reeling after the sealing mechanism performs film cutting and film sealing each time, and sending a reeling signal to the controller to control the film unwinding disk, and sending a stop reeling signal and a stop reeling signal to the controller before the next film cutting and film sealing to control the film unwinding disk and the film reeling disk to stop reeling.

3. The sealing machine according to claim 2, characterized in that: The detection mechanism includes: a swing arm swingably connected to the first surface; a film feeding detection roller, which is arranged on the first surface along the first direction, and one end of the film feeding detection roller close to the swing arm is connected to the swing arm; A sensing unit, comprising a first sensing member and a second sensing member connected to the first surface, wherein the first sensing member and the second sensing member are respectively arranged on two sides of an end of the swing arm away from the film feeding detection roller and are located on a swing path of the swing arm, and the first sensing member is located below the second sensing member; Wherein, the first sensing element and the second sensing element are both electrically connected to the controller. When the film pulling roller and the film receiving disk are reeled up after the sealing mechanism performs film cutting and sealing each time, the swing arm is traction-driven and swings upward and contacts the second sensing element, and the film unwinding disk starts to unwind. When the film unwinding disk is unwinding, and the swing arm swings downward under its own weight and contacts the first sensing element, the film unwinding disk stops unwinding.

4. The sealing machine according to claim 3, characterized in that: The detection mechanism further includes a film break detection roller, which is arranged on the first surface along the first direction and located above the film drawing roller, and is used to perform film break detection on the packaging film wound around it.

5. The sealing machine according to claim 1, characterized in that: All the film guide rollers are arranged alternately on the first surface in sequence along the second direction, and the film drawing roller and the film guide roller closest to it are on the same horizontal line.

6. The sealing machine according to claim 1, characterized in that: The sealing machine also includes a power mechanism, which includes: a first power member, which is fixed on the second surface and electrically connected to the controller, and is used to drive the film placing disk to rotate so as to place and unwind the required packaging film; The second power member is fixed on the second surface and electrically connected to the controller, and is used to drive the film collection disk and the film drawing roller to rotate synchronously so as to reel up the packaging film after die cutting.

7. The sealing machine according to claim 1, characterized in that: The sealing machine has a third direction, and the first direction, the second direction and the third direction intersect each other; The sealing mechanism comprises: A lower template is arranged on the base, the lower template is provided with a first through hole penetrating along the third direction, and the base is provided with a through hole penetrating along the third direction and corresponding to the first through hole one by one; an upper template, which is arranged on one side of the lower template along the third direction and connected to the lower template, a passage space for the packaging film to pass through is formed between the upper template and the lower template, and the passage space has through holes on both sides in the second direction for the packaging film to pass through; and the upper template is provided with a second through hole penetrating along the third direction, and the second through hole is connected to the first through hole; A film cutting assembly comprises a connecting frame, a film cutting component and a first driving component. The connecting frame is arranged on a side of the upper template away from the lower template. The film cutting component is connected to an end of the connecting frame close to the upper template, and the film cutting component is opposite to the second perforation. The first driving component is electrically connected to the controller and is used to drive the connecting frame to move back and forth along the third direction to drive the film cutting component to cut the packaging film passing through the travel space.

8. The sealing machine according to claim 7, characterized in that: The sealing mechanism also includes a film sealing assembly, which includes a guide sleeve, a film sealing member and a second driving member, wherein the guide sleeve passes through the connecting frame and is arranged in the film cutting member, the film sealing member is connected to one end of the guide sleeve close to the film cutting member along the third direction, and the diameter of the film sealing member is smaller than the diameter of the film cutting member, so that under the pulling of the guide sleeve, the film sealing member can be stored in the film cutting member, the output shaft of the second driving member is connected to the end of the guide sleeve away from the film cutting member, the output shaft of the first driving member is connected to the second driving member, and the second driving member is fixedly connected to the connecting frame, the first driving member can drive the second driving member, the connecting frame and the film cutting member to make a reciprocating motion along the third direction, and the second driving member drives the guide sleeve and the film sealing member to make a reciprocating motion relative to the film cutting member along the third direction.

9. The sealing machine according to claim 8, characterized in that: The film sealing assembly also includes an end plate, which is connected to one end of the guide sleeve away from the film cutting member along the third direction, so that a closed space is formed inside the guide sleeve under the sealing of the end plate and the film sealing member, and an opening is provided on the end plate and passes through along the third direction, and the opening is used to connect an external vacuum pump, and a plurality of adsorption holes distributed along the radial direction are provided on the film sealing member, and the adsorption holes are communicated with the interior of the guide sleeve.

10. The sealing machine according to claim 9, characterized in that: The lower template is provided with a first groove on a side away from the base along the third direction, and the first groove is connected to the first perforation. The upper template is provided with a second groove on a side facing the lower template, and the second groove is connected to the second perforation. The second groove and the first groove enclose the passage space, and the through holes for the packaging film to pass through are formed on both sides in the second direction.

11. The sealing machine according to claim 8, characterized in that: The sealing mechanism also includes: A mounting plate, which is arranged on a side of the upper template away from the lower template, the first driving member is mounted on the mounting plate, and an output shaft of the first driving member passes through the mounting plate and is connected to the second driving member; A guide rod is arranged between the mounting plate and the upper template along the third direction, and the connecting frame is slidably connected to the guide rod.

12. The sealing machine according to claim 1, characterized in that: It also includes a film collecting roller, which is arranged on the first surface along the first direction and is located between the film collecting disk and the film drawing roller, and is used to guide the cut packaging film to the film collecting disk.

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