Self-adaptive aluminum film sealing device

Abstract

The utility model provides a self-adaptive aluminum film sealing device. The self-adaptive aluminum film sealing device comprises a mounting bracket, the fixed end of the first driving assembly is arranged on the mounting bracket; the self-adaptive film sealing assembly is mounted in the mounting bracket and comprises a connecting plate and a film sealing head, the connecting plate is connected with the movable end of the first driving assembly, the upper end of the self-adaptive film sealing assembly is a ball head, the self-adaptive film sealing assembly is hung below the connecting plate through a first elastic piece, and the ball head is in sliding connection with the mounting bracket through a ball head seat; the film cutting knife is positioned below the ball cup and is fixedly connected with the connecting plate; and the film pressing plate is positioned below the film cutting knife, is fixedly connected with the ball cup through a fixing piece, and can slide on the mounting bracket along with the ball cup. The film sealing head is elastically connected to the movable end of the first driving assembly through the first elastic piece, and the upper end of the film sealing head adopts the ball head design capable of swinging by 360 degrees, so that the problem of low sealing qualification rate of a bottle type of which the bottle opening is not parallel to the bottle bottom can be solved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum film sealing technology, specifically to an adaptive aluminum film sealing device. Background Technology

[0002] Aluminum foil sealing devices are commonly used in the packaging process of the food and pharmaceutical industries to achieve container sealing. Existing aluminum foil sealing devices typically include a support assembly to support other components and ensure their stability during operation; and a pneumatic pressing assembly, which usually includes a cylinder and a guide rod. The cylinder pushes the guide rod up and down, thereby driving the heat sealing head to heat and press the aluminum foil, completing the sealing operation.

[0003] Currently, among the bottle types requiring aluminum foil sealing on the market, there is one type where the bottle mouth and bottom are not parallel, meaning the bottle mouth is at a certain angle on the horizontal conveyor line, and this angle varies between different products. However, existing heat-sealing aluminum foil sealing devices struggle to adaptively adjust the heat-sealing head according to the bottle mouth's angle. When sealing bottles with non-horizontal mouths, the aluminum foil often fails to fully heat and adhere to the bottle mouth, resulting in uneven sealing and a high number of defective products.

[0004] Therefore, it is necessary to design an aluminum foil sealing device with a simple structure that can automatically adapt to uneven bottle openings to solve the problem of low sealing pass rate for this type of bottle. Utility Model Content

[0005] The purpose of this invention is to overcome the defects of the prior art and provide an adaptive aluminum film sealing device, which can solve the problem of uneven aluminum film sealing caused by non-horizontal bottle opening, resulting in low sealing qualification rate.

[0006] To achieve the above and other objectives, this utility model is implemented through the following technical solution: As a first aspect, this utility model proposes an adaptive aluminum film sealing device, including a mounting bracket; a first driving component with its fixed end disposed on the mounting bracket; an adaptive sealing component installed inside the mounting bracket, including a connecting plate connected to the movable end of the first driving component; a sealing head with its upper end being a ball head, suspended below the connecting plate by a first elastic element, the ball head being slidably connected to the mounting bracket via a ball head seat; a film cutting blade located below the ball head seat and fixedly connected to the connecting plate; and a film pressing plate located below the film cutting blade and fixedly connected to the ball head seat via a fixing element, which can slide along with the ball head seat on the mounting bracket.

[0007] In one embodiment, the mounting bracket includes a fixing rod, a fixing plate and a base plate, a roller seat and a roller; the fixing plate is disposed at the upper end of the fixing rod; the base plate is disposed at the lower end of the fixing rod, and a first through hole is provided on the base plate for the bottle mouth to be sealed with aluminum foil to pass through.

[0008] In one embodiment, two roller seats are symmetrically arranged on the base plate, and a roller is installed between the two roller seats. The roller is rotatably connected to the roller seat through a bearing. The lower end face of the roller is flush with the upper end face of the base plate. The two ends of the aluminum film are slidably disposed on the lower end faces of the two rollers respectively.

[0009] In one embodiment, the roller is provided with two retaining rings, and the aluminum film is limited to slide between the two retaining rings.

[0010] In one embodiment, the upper end of the sealing head is provided with a sealing head limiting plate, and the upper end of the sealing head limiting plate protrudes for mounting the lower end of the first elastic element; the ball head seat includes a ball head upper seat and a ball head lower seat, the ball head lower seat is slidably mounted on the fixed rod, the ball head upper seat is fixed in the middle of the ball head lower seat, and the outer diameter of the upper end of the hollow cavity of the ball head upper seat is smaller than the outer diameter of the sealing head limiting plate.

[0011] In one embodiment, a heating element for preheating the sealing head is embedded in the middle of the sealing head.

[0012] In one embodiment, a temperature sensor is provided at the upper end of the sealing head for measuring and reporting the real-time temperature of the sealing head.

[0013] In one embodiment, the horizontal plate of the cutting blade is slidably mounted on the fixing member; a second elastic member is sleeved on the fixing member, the upper end of the second elastic member is fixed on the horizontal plate, and the lower end is fixed on the upper surface of the pressing plate.

[0014] In one embodiment, a second through hole is provided at the center of the pressure plate, the second through hole is used to pass through the lower end of the sealing head; a silicone gasket is provided on the inner wall of the second through hole, the lower end surface of the silicone gasket is lower than the lower end surface of the pressure plate and flush with the lower end surface of the sealing head.

[0015] In one embodiment, the adaptive aluminum film sealing device further includes a second driving component, the movable end of which is connected to the mounting bracket, for driving the mounting bracket, the first driving component, and the adaptive sealing component to move up and down as a whole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model uses a first elastic element to elastically connect the upper end of the sealing head to the movable end of the first driving component, and the upper end of the sealing head adopts a ball head design that can swing 360°. This allows the sealing head to swing and adjust its lower end when it contacts the bottle mouth, until the sealing head accurately fits the bottle mouth, thus ensuring the effectiveness of the hot pressing operation and solving the problem of low sealing pass rate of bottles with non-parallel bottle mouths and bottoms in the prior art.

[0018] 2. The design of the medium pressure film plate in this utility model can ensure that the aluminum film is always in a tight and taut state during the hot pressing operation of the sealing head and the film cutting operation of the cutting knife, thus ensuring the normal progress of hot pressing and film cutting.

[0019] 3. The design of the roller and retaining ring in this utility model can ensure that the aluminum film is always taut and straight during the sliding process, ensuring the normal progress of hot pressing and film cutting;

[0020] 4. The design of the sealing head limiting plate and the ball head seat in this utility model can limit the range of the ball head's rolling within the ball head seat;

[0021] 5. The heating element design in this utility model ensures that the sealing head applies heat to the aluminum film at the bottle mouth, ensuring that the heat sealing operation between the aluminum film and the bottle mouth proceeds normally.

[0022] 6. In this utility model, the temperature sensor can measure and provide feedback on the real-time temperature of the sealing head, so that the external circuit can refer to the temperature data from the temperature sensor to adjust the working efficiency of the heating element to achieve the purpose of setting the temperature.

[0023] 7. The second elastic element in this utility model is designed to apply a force to the pressure plate to compress the aluminum film;

[0024] 8. The design of the silicone gasket in this utility model can prevent damage to the aluminum film during the pressing operation of the pressure plate. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of an adaptive aluminum film sealing device according to this utility model.

[0026] Figure 2 The diagram shown is a first cross-sectional view of an adaptive aluminum film sealing device according to this utility model.

[0027] Figure 3 The diagram shown is a second cross-sectional view of an adaptive aluminum film sealing device according to this utility model.

[0028] In the diagram: 10. Mounting bracket; 11. Fixing rod; 12. Fixing plate; 13. Base plate; 131. First through hole; 14. Roller seat; 15. Roller; 151. Retaining ring; 20. First drive assembly; 21. Cylinder body; 22. Push rod; 30. Second drive assembly; 40. Adaptive sealing assembly; 41. Connecting plate; 42. First elastic element; 421. Mounting seat; 43. Sealing head; 431. Ball head; 432. Ball head seat; 433. Ball head lower seat; 434. Sealing head limiting plate; 435. Heating element; 436. Temperature sensor; 44. Film cutter; 441. Horizontal plate; 45. Pressing plate; 451. Second through hole; 452. Silicone gasket; 46. Guide rod; 47. Fixing element; 48. Second elastic element; A. Bottle mouth; B. Aluminum film. Detailed Implementation

[0029] Please see Figures 1-3 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0031] In this invention, the serial numbers assigned to components, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The term "connection" in this invention, unless otherwise specified, includes both direct and indirect connections. The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, encompassing not only the listed elements but also other elements not expressly listed.

[0032] like Figures 1-3 As shown, this utility model provides an adaptive aluminum film sealing device, including a mounting bracket 10, a first driving component 20, a second driving component 30, and an adaptive sealing component 40.

[0033] The mounting bracket 10 includes a fixing rod 11, a fixing plate 12, a base plate 13, a roller 15 seat 14, and a roller 15. The fixing plate 12 is located at the upper end of the fixing rod 11. The base plate 13 is fixedly installed at the lower end of the fixing rod 11 and has a first through hole 131. The first through hole 131 is used for the bottle mouth A to be sealed with aluminum foil. The first through hole 131 is usually designed as a round hole, but it can also be other required shapes. Two rollers 15 seats 14 are symmetrically arranged on both sides of the base plate 13. The rollers 15 are movably mounted between the two rollers 15 seats 14 via bearings. The lower end face of the rollers 15 is flush with the upper end face of the base plate 13. The two ends of the aluminum film B are slidably arranged on the lower end face of the two rollers 15 and are pulled upward, so that the aluminum film B can be kept in a horizontal and taut state on the base plate 13. Each roller 15 is provided with two retaining rings 151. The aluminum film B is limited to slide between the two retaining rings 151 to ensure that the aluminum film B can always cover the bottle mouth A to be sealed when sliding.

[0034] The first drive component 20 can be an ultra-thin cylinder, with the fixed end (i.e., cylinder body 21) fixed above the fixed plate 12, and the lower end of the movable end (i.e., push rod 22) passing through the fixed plate 12 and connected to the adaptive sealing assembly 40, thereby driving a portion of the structure in the adaptive sealing assembly 40 to move up and down below the fixed plate 12.

[0035] The second drive assembly 30 can be a cylinder, with its movable end fixedly connected to the fixed plate 12, used to push the mounting bracket 10, the first drive assembly 20, and the adaptive sealing assembly 40 to move up and down as a whole. When the second drive assembly 30 drives the mounting bracket 10 down to the bottle mouth A, the second elastic element 48 provides elastic force to drive the pressure plate 45 to drive the silicone gasket 452 to press the aluminum film. At this time, the sealing head 43 of the adaptive sealing assembly 40 automatically aligns with the bottle mouth A and waits for sealing. After a certain period of time, the first drive assembly 20 drives the film cutter 44 down to complete the film cutting action. After the film cutting is completed, the second drive assembly 30 drives the adaptive sealing assembly 40 to reset, and the conveyor line removes the sealed bottle and moves in the bottle to be sealed.

[0036] The adaptive sealing assembly 40 includes a connecting plate 41, a first elastic element 42, a sealing head 43, a cutting blade 44, and a pressing plate 45. The connecting plate 41 is fixedly connected to the lower end of the push rod 22; the upper end of the first elastic element 42 is fixedly connected to the connecting plate 41 via a mounting base 421, and the lower end of the first elastic element 42 is fixedly connected to the sealing head 43, providing pressure to press the sealing head 43 against the bottle neck A, and allowing for elastic compression space so that the downward movement of the push rod 22 of the first drive assembly 20 does not cause the sealing head 43 to move downward during the film cutting operation. The upper end of the sealing head 43 is a 360° ball head 431, which is slidably connected to the fixing rod 11 via the ball head 431 seat. The lower end of the sealing head 43 has a groove in the middle, so that only the annular protrusion at the lower end can make heat-pressed contact with the aluminum film B at the bottle mouth A. The design of the ball head 431 allows the sealing head 43 to automatically rotate 360° within the ball head 431 seat until the sealing head 43 is completely aligned and pressed against the bottle mouth A. The film cutting blade 44 is located below the ball head 431 seat. Its upper end is fixedly connected to the connecting plate 41 via the guide rod 46, and its lower end is serrated. It is pushed downward by the push rod 22 of the first drive device to perform the film cutting operation. At the same time, it can provide some support to the ball head 431 seat when not cutting film. The pressure plate 45 is slidably mounted on the fixing rod 11 and is fixedly connected to the ball head 431 seat by a fastener 47 (e.g., bolt). It is located below the cutting knife 44 and is used to press the aluminum film B onto the base plate 13 during hot pressing. The pressure plate 45 has a second through hole 451 in the center that can pass through the lower end of the sealing head 43. In order to prevent damage to the aluminum film B, a silicone gasket 452 can be provided on the inner wall of the second through hole 451. The lower end face of the silicone gasket 452 is lower than the lower end face of the pressure plate 45 and is basically flush with the lower end face of the sealing head 43 to ensure that the silicone gasket 452 of the pressure plate 45 contacts the aluminum film B.

[0037] Furthermore, in order to ensure the thermal conductivity and hardness of the sealing head 43, copper material with a certain hardness and excellent thermal conductivity can be used.

[0038] Furthermore, a sealing head limiting plate 434 is provided at the upper end of the sealing head 43, and the lower end of the first elastic member 42 can be fixed on the upper protrusion of the sealing head limiting plate 434; the ball head seat can include a ball head upper seat 432 and a ball head lower seat 433, the ball head lower seat 433 is slidably mounted on the fixing rod 11, the ball head upper seat is fixed in the middle of the ball head lower seat 433, and the outer diameter of the upper end of the hollow cavity of the ball head upper seat 432 is smaller than the outer diameter of the sealing head limiting plate 434, thereby limiting the range of rolling of the sealing head 43 within the ball head seat.

[0039] Furthermore, a heating element 435 for preheating the sealing head 43 is embedded in the middle of the sealing head 43. The design of the heating element 435 can ensure that the sealing head 43 can apply heat to the aluminum film B on the bottle mouth A to complete the heat-sealing operation between the aluminum film B and the bottle mouth A.

[0040] Furthermore, a temperature sensor 436, such as a thermocouple, can be provided at the upper end of the sealing head 43 to measure and provide feedback on the real-time temperature of the sealing head 43, so that the external circuit can refer to the temperature data from the temperature sensor 436 to adjust the working efficiency of the heating element 435 to achieve the purpose of setting the temperature.

[0041] Furthermore, the horizontal plate 441 of the cutting blade 44 can be slidably mounted on the fixing member 47, and a second elastic member 48 is mounted on the fixing member 47. The upper end of the second elastic member is fixed on the horizontal plate 441 of the cutting blade 44, and the lower end is fixed on the upper end surface of the pressure plate 45. The second elastic member 48 is used to apply a holding force to the pressure plate 45.

[0042] In summary, the adaptive aluminum film sealing device provided by this utility model works as follows:

[0043] Step 1: The second drive assembly 30 drives the mounting bracket 10, the first drive assembly 20, and the adaptive sealing assembly 40 to move downwards as a whole until the lower bottle opening A is higher than the upper surface of the base plate 13. At this time, the second elastic element 48 provides elastic force to drive the pressure plate 45 to move the silicone gasket 452 to press the aluminum film. The upper end of the sealing head 43 is pressed by the first elastic element 42. The sealing head 43 that contacts the bottle opening A uses the ball head 431 to rotate 360° in the ball head seat so that the lower end of the sealing head 43 completely matches the bottle opening A. Pressing and sealing begins; specifically, during the downward movement, the push rod 22 of the first drive device is in the retracted state. At this time, the sealing head 43 and the ball head seat are subjected to the pressure of the first elastic element 42 to keep the sealing head 43 in the reset state when not working, and are supported by the film cutting knife 44, so that they are limited on the fixed rod 11 and will not move downward. At the same time, the pressure plate 45 will not move downward because it is fixed to the ball head seat, and maintains a relative position with the film cutting knife 44 through the second elastic element 48 and the fixed element 47.

[0044] Step 2: After sealing for a certain period of time, the push rod 22 of the first drive assembly 20 moves down, causing the film cutting knife 44 to be pushed down and cut the aluminum film B; then the push rod 22 of the first drive assembly 20 retracts, and the sealing head 43 leaves the bottle mouth, completing the sealing operation;

[0045] Step 3: The second drive assembly 30 drives the mounting bracket 10, the first drive assembly 20 and the adaptive sealing assembly 40 to move upward as a whole until the lower bottle opening A is lower than the lower end face of the base plate 13; the conveyor line is run to move the bottle to remove the sealed bottle and move the bottle to be sealed.

[0046] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A self-adapting aluminum film closure device, characterized in that, The utility model relates to a kind of automatic sealing machine for sealing bottle mouth with aluminum film, including Mounting bracket; First drive assembly, fixed end is arranged on the mounting bracket; Self-adapting sealing film assembly, it is installed in the mounting bracket, including Connecting plate, with the movable end of the first drive assembly is connected, Sealing film head, upper end is ball head, through first elastic piece hoisting in the lower of the connecting plate, the ball head is slidably connected with the mounting bracket by ball head seat; Film cutting knife, it is located in the lower of the ball head seat, and is fixedly connected with the connecting plate; Pressing film plate, it is located in the lower of the film cutting knife, and is fixedly connected with the ball head seat by fixed part, can slide on the mounting bracket with the ball head seat.

2. The self-adapting aluminum film closure device of claim 1, wherein, The mounting bracket includes fixed rod, fixed plate and bottom plate, roller shaft seat and roller shaft;The fixed plate is arranged on the upper end of the fixed rod;The bottom plate is arranged on the lower end of the fixed rod, and the first through hole is formed in the bottom plate, and the first through hole is used to pass through the bottle mouth to be sealed with aluminum film.

3. The self-adapting aluminum film closure device of claim 2, wherein, Two roller shaft seats are symmetrically arranged on the bottom plate, and a roller shaft is installed between the two roller shaft seats, and the roller shaft is rotatably connected with the roller shaft seat by bearing;The lower end surface of the roller shaft is flush with the upper end surface of the bottom plate;The two ends of the aluminum film are slidably arranged on the lower end surface of the two roller shafts respectively.

4. The self-adapting aluminum film closure device of claim 3, wherein, Two retaining rings are arranged on the roller shaft, and the aluminum film is limited between the two retaining rings and slides.

5. The self-adapting aluminum film closure device of claim 2, wherein, The upper end of the sealing film head is provided with a sealing film head limiting plate, and the upper end of the sealing film head limiting plate is protruded to install the lower end of the first elastic piece;The ball head seat includes a ball head upper seat and a ball head lower seat, the ball head lower seat is slidably installed on the fixed rod, the ball head upper seat is fixed in the middle of the ball head lower seat, and the outer diameter of the hollow cavity of the ball head upper seat is smaller than the outer diameter of the sealing film head limiting plate.

6. The self-adapting aluminum film closure device of claim 1, wherein, The middle part of the sealing film head is embedded with a heating element for preheating the sealing film head.

7. The self-adapting aluminum film closure device of claim 6, wherein, A temperature sensor is arranged on the upper end of the sealing film head for measuring and feeding back the real-time temperature of the sealing film head.

8. The self-adapting aluminum film closure device of claim 1, wherein, The horizontal plate of the film cutting knife is slidably sleeved on the fixed part, and a second elastic piece is sleeved on the fixed part, and the upper end of the second elastic piece is fixed on the horizontal plate, and the lower end is fixed on the upper end surface of the pressing film plate.

9. The self-adapting aluminum film closure device of claim 1, wherein, A second through hole is formed in the center of the pressing film plate, and the second through hole is used to pass through the lower end of the sealing film head;A silica gel gasket is arranged on the inner wall of the second through hole, and the lower end surface of the silica gel gasket is lower than the lower end surface of the pressing film plate, and flush with the lower end surface of the sealing film head.

10. The self-adapting aluminum film closure device of claim 1, wherein, It further includes second drive assembly, movable end is connected with the mounting bracket, for driving the mounting bracket, first drive assembly and self-adapting sealing film assembly to move up and down as a whole.

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