Sealing device for blister box

Abstract

The invention discloses a blister box sealing device which comprises a conveying assembly, a mounting frame, a film conveying mechanism, a hot cutting film sealing mechanism and a synchronizing mechanism, the mounting frame is arranged above the conveying assembly, and the film conveying mechanism is arranged on the mounting frame and used for conveying a hot sealing film to the position above the conveying assembly. The problems that in the prior art, a winding mechanism and a heat-sealing film-covering mechanism are controlled through two sets of driving mechanisms correspondingly, control is troublesome, and movement interference is likely to occur are solved, for example, when the winding mechanism winds a film to the heat-sealing film-covering mechanism, winding is not stopped in time, the heat-sealing film-covering mechanism starts heat-sealing pressing, and the film-covering efficiency is improved. Or the winding mechanism does not completely wind the film into the heat-sealing film covering mechanism, so that part of the blister box is not sealed. According to the plastic uptake box sealing device, the winding mechanism and the heat-sealing film covering mechanism are controlled by one set of driving mechanism, so that the problem of motion interference is avoided.

Description

Technical Field

[0001] The invention relates to the field of blister box sealing, in particular to a blister box sealing device. Background Art

[0002] Blister packaging is a plastic processing technology. The main principle is to heat and soften the flat plastic hard sheet, vacuum absorb it on the mold surface, and form it after cooling. It is widely used in plastic packaging, lighting, advertising, decoration and other industries. Blister packaging refers to the general term for plastic products produced by blister packaging technology and encapsulated with corresponding equipment. Blister packaging products include: blister, tray, blister box, etc. The main advantages of blister packaging are saving raw and auxiliary materials, light weight, convenient transportation, good sealing performance, meeting the requirements of environmentally friendly green packaging, and being able to package any special-shaped products. No additional buffer material is required for packaging. The packaged products are transparent and visible, beautiful in appearance, easy to sell, and suitable for mechanized and automated packaging, which is convenient for modern management, saving manpower and improving efficiency. Existing blister boxes are usually made by ordinary hot pressing sealing machines, which require workers to complete the loading and unloading operations while actively controlling the operation of the hot pressing sealing machine. The processing efficiency is low, and the workers need to place their hands under the sealing machine when loading, which has a large risk factor. Therefore, the purpose of the present invention is to provide a blister box processing heat sealing device.

[0003] At present, the blister box is sealed by rolling up the film into a heat-sealing film-covering mechanism through a rolling mechanism, and then the film is heat-sealed and pressed onto the blister box through the heat-sealing film-covering mechanism, thereby achieving the sealing of the blister box.

[0004] However, in this method, the winding mechanism and the heat-sealing laminating mechanism are controlled by two sets of driving mechanisms respectively, which is more difficult to control and is prone to motion interference problems. For example, when the winding mechanism winds the film into the heat-sealing laminating mechanism, the winding is not stopped in time, and the heat-sealing laminating mechanism starts heat sealing and pressing, resulting in part of the film being wasted, or the winding mechanism has not completely rolled the film into the heat-sealing laminating mechanism, resulting in part of the blister box not being sealed.

[0005] Therefore, it is an urgent problem to be solved by the present invention to provide a blister box sealing device in which a winding mechanism and a heat-sealing film-laminating mechanism are controlled by a set of driving mechanisms to avoid the problem of motion interference. Summary of the invention

[0006] In view of the above technical problems, the purpose of the present invention is to overcome the problem that the winding mechanism and the heat-sealing film coating mechanism are controlled by two sets of driving mechanisms respectively in the prior art, which is troublesome to control and prone to motion interference problems. For example, when the winding mechanism rolls the film to the heat-sealing film coating mechanism, the winding is not stopped in time, and the heat-sealing film coating mechanism starts heat-sealing and pressing, resulting in part of the film being wasted, or the winding mechanism has not completely rolled the film into the heat-sealing film coating mechanism, resulting in part of the blister box not being sealed. Thus, a blister box sealing device is provided in which the winding mechanism and the heat-sealing film coating mechanism are controlled by a set of driving mechanisms to avoid motion interference problems.

[0007] In order to achieve the above-mentioned object, the present invention provides a blister box sealing device, the device comprising: a conveying assembly, a mounting frame, a film conveying mechanism, a heat-cutting film sealing mechanism and a synchronization mechanism, the mounting frame is arranged above the conveying assembly, the film conveying mechanism is arranged on the mounting frame, and is used to convey the heat-sealing film to the top of the conveying assembly, the conveying assembly is used to convey the blister box to the bottom of the mounting frame, the heat-cutting film sealing mechanism is arranged on the mounting frame, and is used to press and heat-seal the heat-sealing film to the open part of the blister box, and the synchronization mechanism is arranged on the mounting frame; wherein, the film conveying mechanism comprises: a rotating roller, a horizontal roller and a first transmission wheel, the rotating rollers are respectively and horizontally rotatably arranged on opposite sides of the mounting frame, and the horizontal rollers are respectively and horizontally arranged on opposite sides of the mounting frame below the rotating rollers, and the first transmission wheel is coaxially arranged at one end of any rotating roller; the heat-cutting film sealing mechanism comprises: a heat-sealing assembly, a crank rotating roller, a connecting rod, a first transmission wheel, a second ... The cam is a gear mounted on a support frame, and the cam is connected to the support frame by a toothed connection, wherein the toothed connection is connected to the support frame by a toothed connection. The cam is connected to the support frame by a toothed connection, and the toothed connection is connected to the support frame by a toothed connection.

[0008] Preferably, the conveying assembly comprises: a conveying frame and a conveying belt, the conveying frame is arranged below the mounting frame, the conveying belt is arranged on the conveying frame, the conveying belt is provided with a plurality of placement slots for placing blister boxes, and can convey the blister boxes to the bottom of the heat sealing assembly.

[0009] Preferably, the heat sealing assembly comprises: a shell, a fixed frame, and a heat sealing frame. The fixed frame is arranged below the shell, and a plurality of heating elements for heating the lower surface of the heat sealing frame are arranged inside the fixed frame. A plurality of guide rods are arranged above the heat sealing frame and pass through the fixed frame. The rod body of each guide rod is sleeved with an elastic member, one end of the elastic member abuts or is fixedly connected to the upper surface of the heat sealing frame, and the other end abuts or is fixedly connected to the lower surface of the fixed frame. The end of the rotating rod away from the crank rotating roller is hinged above the shell.

[0010] Preferably, an anti-detachment block is provided at the upper end of the guide rod to prevent the heat sealing frame from detaching from the fixing frame.

[0011] Preferably, a cutting groove is arranged around the circumference of the placement groove, and a heat sealing cutting knife matched with the cutting groove is arranged on the lower surface of the heat sealing frame.

[0012] Preferably, limiting sliding blocks are respectively arranged on two opposite sides of the shell, and limiting sliding grooves matched with the limiting sliding blocks are arranged on the mounting frame.

[0013] Preferably, the rotating roller is coaxially arranged with a threaded column at one end away from the first transmission wheel, and a first limit plate is coaxially arranged on the roller body close to the first transmission wheel, a second limit plate and a nut are coaxially and detachably arranged on the threaded column, a sleeve is coaxially and detachably arranged on the rotating roller body, and the heat-sealing film can be curled on the sleeve.

[0014] Preferably, the first limiting plate and the second limiting plate are respectively provided with anti-slip extrusion blocks on one side close to each other.

[0015] Preferably, the second transmission wheel circumference and the third transmission wheel circumference are coaxially provided with first anti-skid patterns, and the inner side of the synchronous belt is provided with second anti-skid patterns matching the first anti-skid patterns.

[0016] According to the above technical scheme, the beneficial effects of the present invention compared with the prior art are as follows: the present application starts the driving motor to drive the crank rotating roller to rotate, thereby driving the heat sealing assembly to reciprocate and rise and fall through the connecting rod, and at the same time drives the second transmission wheel to rotate, so as to drive the third transmission wheel to rotate through the synchronous belt, thereby driving the fourth transmission wheel to rotate, and then through the avoidance groove and the driving rod on the fourth transmission wheel and the driving groove and the limit groove on the first transmission wheel, which is equivalent to a groove wheel mechanism, to drive the first transmission wheel to rotate intermittently, thereby driving the rotating roller to rotate intermittently, realizing the intermittent transportation of the heat sealing film, thereby realizing that when the heat sealing assembly descends to heat-seal the heat sealing film at the open part of the blister box, the heat sealing film is in a stationary state, and when the heat sealing assembly rises, the rotating roller rotates to drive the heat sealing film to move, thereby rolling up the used heat sealing film and replacing it with a new heat sealing film so that the heat sealing assembly can be heat-sealed when it descends; the heat-cutting film sealing mechanism and the film conveying mechanism of the device are controlled by the same driving motor, and there is no control difficulty of multiple driving mechanisms that need to be started and stopped, so as to ensure that no motion interference occurs.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 A three-dimensional blister box sealing device provided in a preferred embodiment of the present invention Figure 1 .

[0020] Figure 2 A three-dimensional blister box sealing device provided in a preferred embodiment of the present invention Figure 2 .

[0021] Figure 3 It is a partial three-dimensional diagram of a blister box sealing device provided in a preferred embodiment of the present invention. Figure 1 .

[0022] Figure 4 It is a partial plane of the blister box sealing device provided in a preferred embodiment of the present invention. Figure 1 .

[0023] Figure 5 It is a partial three-dimensional diagram of a blister box sealing device provided in a preferred embodiment of the present invention. Figure 2 .

[0024] Figure 6It is a partial plane of the blister box sealing device provided in a preferred embodiment of the present invention. Figure 2 .

[0025] Figure 7 It is a partial three-dimensional diagram of a blister box sealing device provided in a preferred embodiment of the present invention. Figure 3 .

[0026] Figure 8 It is a partial three-dimensional diagram of a blister box sealing device provided in a preferred embodiment of the present invention. Figure 4 .

[0027] Description of reference numerals: 1-conveying assembly; 101-conveying frame; 102-conveying belt; 10201-placing groove; 10202-cutting groove; 2-mounting frame; 201-limiting slide groove; 3-film conveying mechanism; 301-rotating roller; 30101-first limiting plate; 3010101-anti-slip extrusion block; 30102-threaded column; 30103-nut; 30104-second limiting plate; 302-horizontal roller; 303-first transmission wheel; 30301-driving groove; 30302-limiting groove; 304-tensioning roller; 305-sleeve; 4-heat cutting and sealing Membrane mechanism; 401-heat sealing assembly; 40101-shell; 4010101-limiting slider; 40102-fixed frame; 40103-heat sealing frame; 4010301-elastic member; 4010302-guide rod; 4010303-anti-slip block; 4010304-heat sealing cutting knife; 402-crank rotating roller; 403-connecting rod; 404-second transmission wheel; 405-driving motor; 5-synchronizing mechanism; 501-third transmission wheel; 502-synchronizing belt; 503-fourth transmission wheel; 50301-avoidance groove; 50302-driving rod. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are used to indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, it does not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1-Figure 4: A blister box sealing device, the device comprises: a conveying component 1, a mounting frame 2, a film conveying mechanism 3, a heat-cutting film sealing mechanism 4 and a synchronization mechanism 5, the mounting frame 2 is arranged above the conveying component 1, the film conveying mechanism 3 is arranged on the mounting frame 2, and is used to convey the heat-sealing film to the top of the conveying component 1, the conveying component 1 is used to convey the blister box to the bottom of the mounting frame 2, the heat-cutting film sealing mechanism 4 is arranged on the mounting frame 2, and is used to press and heat-seal the heat-sealing film to the open part of the blister box, and the synchronization mechanism 5 is arranged on the mounting frame 2; wherein, the film conveying mechanism 3 is arranged on the mounting frame 2, and the heat-cutting film sealing mechanism 4 ... The feeding mechanism 3 includes: a rotating roller 301, a horizontal roller 302 and a first transmission wheel 303. The rotating rollers 301 are respectively and horizontally rotatably arranged on the opposite sides of the mounting frame 2. The horizontal rollers 302 are respectively and horizontally arranged on the opposite sides of the mounting frame 2 below the rotating rollers 301. The first transmission wheel 303 is coaxially arranged at one end of any rotating roller 301. The heat-cutting film sealing mechanism 4 includes: a heat-sealing component 401, a crank rotating roller 402, a connecting rod 403, a second transmission wheel 404 and a driving motor 405. The heat-sealing component 401 is arranged to be raised and lowered. On the mounting frame 2, the crank roller 402 is horizontally rotatably arranged above the heat sealing assembly 401, one end of the connecting rod 403 is hinged to the protruding part of the crank roller 402, and the other end is hinged to the heat sealing assembly 401, the second transmission wheel 404 is coaxially arranged at one end of the crank roller 402, and the driving motor 405 is arranged on the mounting frame 2 to drive the crank roller 402 to rotate; the synchronization mechanism 5 includes: a third transmission wheel 501, a synchronous belt 502 and a fourth transmission wheel 503, one side of the first transmission wheel 303 is rotatable A third transmission wheel 501 is arranged on the ground, one end of the synchronous belt 502 is sleeved on the second transmission wheel 404, and the other end is sleeved on the third transmission wheel 501, the fourth transmission wheel 503 is coaxially arranged on the third transmission wheel 501, a driving groove 30301 and a limiting groove 30302 matched with the fourth transmission wheel 503 are coaxially arranged around the first transmission wheel 303, and a driving rod 50302 matched with the driving groove 30301 and an avoidance groove 50301 for avoiding the first transmission wheel 303 are arranged on the fourth transmission wheel 503.

[0033] The present application starts the driving motor 405 to drive the crank rotating roller 402 to rotate, thereby driving the heat sealing assembly 401 to reciprocate and rise and fall through the connecting rod 403, and at the same time drives the second transmission wheel 404 to rotate, so as to drive the third transmission wheel 501 to rotate through the synchronous belt 502, thereby driving the fourth transmission wheel 503 to rotate, and then the avoidance groove 50301 and the driving rod 50302 on the fourth transmission wheel 503 cooperate with the driving groove 30301 and the limiting groove 30302 on the first transmission wheel 303, which is equivalent to a grooved wheel mechanism, so as to drive the first transmission wheel 303 to rotate intermittently, thereby bringing The movable rotating roller 301 rotates intermittently to realize the intermittent conveying of the heat-sealing film, so that when the heat-sealing component 401 descends to heat-seal the heat-sealing film at the open end of the blister box, the heat-sealing film is in a stationary state, and when the heat-sealing component 401 rises, the rotating roller 301 rotates to drive the heat-sealing film to move, so that the used heat-sealing film is rolled up and replaced with a new heat-sealing film to facilitate heat sealing when the heat-sealing component 401 descends; the heat-cutting film-sealing mechanism 4 and the film conveying mechanism 3 of the device are controlled by the same driving motor 405, and there is no control difficulty of starting and stopping multiple driving mechanisms to ensure that there is no motion interference.

[0034] Reference Figure 2 and Figure 3 The conveying component 1 includes: a conveying frame 101 and a conveying belt 102. The conveying frame 101 is arranged below the mounting frame 2, and the conveying belt 102 is arranged on the conveying frame 101. The conveying belt 102 is provided with a plurality of placement grooves 10201 for placing blister boxes, and can convey the blister boxes to the bottom of the heat sealing component 401.

[0035] The present application uses this design to continuously transport the blister box to the bottom of the heat sealing component 401 for sealing. The figure does not fully show the entire picture of the conveyor frame 101. It is mainly through the plate with a placement groove 10201 arranged on the conveyor belt 102 that the blister box is continuously transported to the bottom of the heat sealing component 401.

[0036] Reference Figure 5 , Figure 6 and Figure 7The heat sealing assembly 401 includes: a shell 40101, a fixed frame 40102, and a heat sealing frame 40103. The fixed frame 40102 is arranged below the shell 40101, and a plurality of heating elements for heating the lower surface of the heat sealing frame 40103 are arranged inside the fixed frame 40102. A plurality of guide rods 4010302 are arranged above the heat sealing frame 40103 and penetrate the fixed frame 40102. Each guide rod 4010302 is sleeved with an elastic member 4010301. One end of the elastic member 4010301 is abutted or fixedly connected to the upper surface of the heat sealing frame 40103, and the other end is abutted or fixedly connected to the lower surface of the fixed frame 40102. The rotating rod is hinged above the shell 40101 at one end away from the crank rotating roller 402.

[0037] In the present application, during the descending process of the shell 40101, the heat sealing frame 40103 first contacts the heat sealing film and presses it against the opening of the blister box. Due to the presence of the elastic member 4010301, a buffer is provided to prevent the heat sealing frame 40103 from constantly colliding with the film conveying mechanism 3, so as to extend the service life of the device. Subsequently, the heating element heats the lower surface of the heat sealing frame 40103 and cuts off the heat sealing film, so that the heat sealing film is encapsulated in the opening of the blister box.

[0038] Reference Figure 6 : The upper end of the guide rod 4010302 is provided with an anti-detachment block 4010303 to prevent the heat sealing frame 40103 from detaching from the fixed frame 40102.

[0039] The present application adopts a design to prevent the heat sealing frame 40103 from detaching from the fixing frame 40102.

[0040] Reference Figure 3 and Figure 6 : A cutting groove 10202 is arranged around the side of the placement groove 10201, and a heat sealing cutting knife 4010304 matched with the cutting groove 10202 is arranged on the lower surface of the heat sealing frame 40103.

[0041] The present application uses this design to ensure that the heat sealing cutting knife 4010304 can cut the heat sealing film, and can ensure that the heat sealing film can be cut neatly without being messy, thereby ensuring the beauty of the blister box.

[0042] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 : The shell 40101 is provided with limit sliders 4010101 on opposite sides, and the mounting frame 2 is provided with a limit sliding groove 201 adapted to the limit sliders 4010101.

[0043] The shell 40101 of the present application is assembled in the limiting slide groove 201 through the limiting slider 4010101 to ensure stable lifting and lowering without deviation.

[0044] Reference Figure 4 and Figure 5 : The rotating roller 301 is coaxially arranged with a threaded column 30102 at one end away from the first transmission wheel 303, and a first limiting plate 30101 is coaxially arranged on the roller body close to the first transmission wheel 303, a second limiting plate 30104 and a nut 30103 are coaxially and detachably arranged on the threaded column 30102, a sleeve 305 is coaxially and detachably arranged on the roller body of the rotating roller 301, and the heat-sealing film can be curled on the sleeve 305.

[0045] The present application adopts such a design to detachably set the heat-sealing film on the rotating roller 301 through the sleeve 305, so that the user can replenish the heat-sealing film in time.

[0046] Reference Figure 8 : The first limiting plate 30101 and the second limiting plate 30104 are respectively provided with an anti-slip squeezing block 3010101 on one side close to each other.

[0047] The present application ensures that the sleeve 305 can rotate synchronously with the rotating roller 301 through such a design.

[0048] Reference Figure 5 The second transmission wheel 404 and the third transmission wheel 501 are coaxially provided with first anti-skid patterns, and the inner side of the synchronous belt 502 is provided with second anti-skid patterns that match the first anti-skid patterns.

[0049] The present application uses this design to ensure that the second transmission wheel 404 and the third transmission wheel 501 can rotate synchronously.

[0050] When the device provided by the present invention is in use, the driving motor 405 is started to drive the crank roller 402 to rotate, thereby driving the heat sealing assembly 401 to reciprocate and rise and fall through the connecting rod 403, and at the same time driving the second transmission wheel 404 to rotate, so as to drive the third transmission wheel 501 to rotate through the synchronous belt 502, thereby driving the fourth transmission wheel 503 to rotate, and then the avoidance groove 50301 and the driving rod 50302 on the fourth transmission wheel 503 cooperate with the driving groove 30301 and the limiting groove 30302 on the first transmission wheel 303, which is equivalent to a grooved wheel mechanism, so as to drive the first transmission wheel 303 to rotate intermittently. The rotating roller 301 moves, thereby driving the rotating roller 301 to rotate intermittently, realizing the intermittent conveying of the heat-sealing film, so that when the heat-sealing component 401 descends to heat-seal the heat-sealing film at the open end of the blister box, the heat-sealing film is in a stationary state, and when the heat-sealing component 401 rises, the rotating roller 301 rotates to drive the heat-sealing film to move, thereby rolling up the used heat-sealing film and replacing it with a new heat-sealing film to facilitate the heat-sealing component 401 to perform heat sealing when it descends; the heat-cutting film-sealing mechanism 4 and the film conveying mechanism 3 of the device are controlled by the same driving motor 405, and there is no control difficulty of starting and stopping multiple driving mechanisms to ensure that there is no motion interference.

[0051] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0053] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A blister box sealing device, characterized in that: The device comprises: a conveying component (1), a mounting frame (2), a film conveying mechanism (3), a heat-cutting and sealing film mechanism (4) and a synchronization mechanism (5); the mounting frame (2) is arranged above the conveying component (1); the film conveying mechanism (3) is arranged on the mounting frame (2) to convey the heat-sealing film to the top of the conveying component (1); the conveying component (1) is used to convey the blister box to the bottom of the mounting frame (2); the heat-cutting and sealing film mechanism (4) is arranged on the mounting frame (2) to press and heat-seal the heat-sealing film to the open part of the blister box; and the synchronization mechanism (5) is arranged on the mounting frame (2); wherein: The film conveying mechanism (3) comprises: a rotating roller (301), a horizontal roller (302) and a first transmission wheel (303); the rotating rollers (301) are respectively arranged horizontally and rotatably on opposite sides of the mounting frame (2); the horizontal rollers (302) are respectively arranged horizontally below the rotating rollers (301) on opposite sides of the mounting frame (2); and the first transmission wheel (303) is coaxially arranged at one end of any rotating roller (301); The heat-cutting film-sealing mechanism (4) comprises: a heat-sealing component (401), a crank rotating roller (402), a connecting rod (403), a second transmission wheel (404) and a driving motor (405); the heat-sealing component (401) is arranged on the mounting frame (2) in a manner that it can be raised and lowered; the crank rotating roller (402) is arranged above the heat-sealing component (401) in a manner that it can be rotated horizontally; one end of the connecting rod (403) is hinged to a protruding portion of the crank rotating roller (402), and the other end is hinged to the heat-sealing component (401); the second transmission wheel (404) is coaxially arranged at one end of the crank rotating roller (402); and the driving motor (405) is arranged on the mounting frame (2) to drive the crank rotating roller (402) to rotate; The synchronization mechanism (5) comprises: a third transmission wheel (501), a synchronization belt (502) and a fourth transmission wheel (503); the third transmission wheel (501) is rotatably arranged on one side of the first transmission wheel (303); one end of the synchronization belt (502) is sleeved on the second transmission wheel (404) and the other end is sleeved on the third transmission wheel (501); the fourth transmission wheel (503) is coaxially arranged on the third transmission wheel (501); a driving groove (30301) and a limiting groove (30302) matched with the fourth transmission wheel (503) are coaxially arranged around the circumference of the first transmission wheel (303); the fourth transmission wheel (503) is provided with a driving rod (50302) matched with the driving groove (30301) and an avoidance groove (50301) for avoiding the first transmission wheel (303).

2. A blister box sealing device according to claim 1, characterized in that: The conveying assembly (1) comprises: a conveying frame (101) and a conveying belt (102); the conveying frame (101) is arranged below the mounting frame (2); the conveying belt (102) is arranged on the conveying frame (101); a plurality of placement grooves (10201) for placing blister boxes are arranged on the conveying belt (102), and the blister boxes can be conveyed to the bottom of the heat sealing assembly (401).

3. A blister box sealing device according to claim 2, characterized in that: The heat sealing assembly (401) comprises: a shell (40101), a fixed frame (40102), and a heat sealing frame (40103); a fixed frame (40102) is arranged below the shell (40101), and a plurality of heating elements for heating the lower surface of the heat sealing frame (40103) are arranged inside the fixed frame (40102); a plurality of guide rods (4010302) are arranged above the heat sealing frame (40103) and penetrate the fixed frame (40102); an elastic member (4010301) is sleeved on the rod body of each guide rod (4010302); one end of the elastic member (4010301) is abutted or fixedly connected to the upper surface of the heat sealing frame (40103), and the other end is abutted or fixedly connected to the lower surface of the fixed frame (40102); and one end of the rotating rod away from the crank rotating roller (402) is hinged to the top of the shell (40101).

4. A blister box sealing device according to claim 3, characterized in that: The upper end of the guide rod (4010302) is provided with an anti-detachment block (4010303) for preventing the heat sealing frame (40103) from detaching from the fixed frame (40102).

5. A blister box sealing device according to claim 2, characterized in that: The placement groove (10201) is surrounded by a cutting groove (10202), and the lower surface of the heat sealing frame (40103) is provided with a heat sealing cutting knife (4010304) that is compatible with the cutting groove (10202).

6. A blister box sealing device according to claim 2, characterized in that: The shell (40101) is provided with limit sliding blocks (4010101) on opposite sides, and the mounting frame (2) is provided with limit sliding grooves (201) adapted to the limit sliding blocks (4010101).

7. A blister box sealing device according to claim 1, characterized in that: The end of the rotating roller (301) away from the first transmission wheel (303) is coaxially provided with a threaded column (30102), and the side of the roller body close to the first transmission wheel (303) is coaxially provided with a first limiting plate (30101), the threaded column (30102) is coaxially and detachably provided with a second limiting plate (30104) and a nut (30103), the roller body of the rotating roller (301) is coaxially and detachably provided with a sleeve (305), and the heat-sealing film can be rolled up and provided on the sleeve (305).

8. A blister box sealing device according to claim 7, characterized in that: The first limiting plate (30101) and the second limiting plate (30104) are respectively provided with an anti-slip squeezing block (3010101) on one side close to each other.

9. A blister box sealing device according to claim 1, characterized in that: The second transmission wheel (404) and the third transmission wheel (501) are coaxially provided with first anti-skid patterns, and the inner side of the synchronous belt (502) is provided with second anti-skid patterns that match the first anti-skid patterns.

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