A sealing film die cutting and sealing mechanism

Abstract

The application discloses a sealing film punching and sealing mechanism, which comprises a sealing film roll conveying system, a sealing total driving mechanism, a sealing pressure head device and a sealing pressure film cutter device, and the four are combined and used to play a role. Compared with a traditional structure, the sealing film punching and sealing mechanism is equivalent to a fixed mold and is fixed on a base, while the traditional structure generally puts a cutter on the upper part and is equivalent to a movable mold. Advantages of the sealing film punching and sealing mechanism are as follows: 1. the cutter is hidden in the base, so that an operator will not be hurt during maintenance or operation; and 2. during each cycle operation process, the sealing pressure head heating system is started and stopped at a position which is separated from the sealing pressure film cutter device, for example, when the sealing film punching and sealing mechanism is stopped, the lowermost heating iron block of the sealing pressure head heating system is above the sealing pressure film cutter device, so that heat is reduced to be transferred to the sealing cutter main body, and cold cutting is achieved as much as possible during punching, so that the generation of burrs is greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of capsule coffee packaging, in particular to a sealing film punching and sealing mechanism. Background Art

[0002] Traditional capsule coffee caps use prefabricated film, pre-cut to the cup shape and then heat-sealed to the cup rim. This prefabricated film is more expensive than in-line punching and can become unusable with even the slightest change in cup size. Furthermore, this prefabricated film typically requires a rotating suction cup mechanism to handle the film placement, resulting in a long travel and easily misaligned between the film and the cup rim, leading to a poor seal.

[0003] For example, the Chinese patent publication number CN218806802U discloses a film cutting mechanism for heat-sealing film, including a cutter lifting mechanism, a cutter module and a film suction assembly. The cutter module includes an inner hollow cutter and a cutting matching module. The inner hollow cutter has a hollow cavity that passes through from top to bottom. The cutting matching module is located below the inner hollow cutter, and a vertical through hole that matches the shape of the inner hollow cutter is provided on the cutting matching module. A channel for heat-sealing film to pass through is provided horizontally in the middle of the cutting matching module. The cutter lifting mechanism is connected to the inner hollow cutter. The film suction assembly includes an adsorption tube and a driving assembly for driving the adsorption tube to rise and fall. The adsorption tube extends into the hollow cavity of the inner hollow cutter, and the adsorption tube is connected to a negative pressure device. The heat-sealing film cutting mechanism is equipped with an inner hollow cutter, and a liftable adsorption tube is set in the hollow cavity of the inner hollow cutter. The adsorption tube is used to suck the heat-sealing film tightly and place the cut heat-sealing film on the upper surface of the product to prevent the heat-sealing film from falling freely onto the upper surface of the product, causing the film to fall off or shift easily, thereby ensuring the sealing effect of the finished product.

[0004] In summary, the existing capsule coffee packaging methods have many disadvantages, which are summarized as follows:

[0005] ① The traditional prefabricated film method involves pre-cutting the film according to the cup shape and then sealing it to the cup rim using a heat-sealing mechanism. This type of prefabricated film is more expensive than online punching, and even the slightest change in cup size can render the film unusable. Furthermore, this type of prefabricated film generally requires a rotating suction cup mechanism to pick up and place the film, which has a long stroke and can easily cause the film to misalign with the cup rim, resulting in a poor seal and an inability to ensure concentricity between the roll film and the capsule coffee.

[0006] ②Some structures integrate the cutter and the hot block into one, which is equivalent to a moving mold, which can easily injure the operator during maintenance or operation;

[0007] ③During each cycle of ordinary equipment, the cutter is placed outside the hot block, and heat is easily transferred to the cutter, which is particularly prone to burrs.

[0008] ④ The preheating time from power on to operation of traditional ironing blocks is relatively long. Summary of the Invention

[0009] In view of the deficiencies in the prior art, the present invention provides a sealing film punching and sealing mechanism to solve the above problems.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0011] A sealing film punching and sealing mechanism includes a sealing film roll conveying system, a sealing main drive mechanism, a sealing pressure head device, and a sealing film pressing and cutting device. The sealing main drive mechanism is connected to the sealing pressure head device, and the sealing film pressing and cutting device is located below the sealing pressure head device. The sealing film roll conveying system is located on both sides of the sealing film pressing and cutting device. The sealing pressure head device and the sealing film pressing and cutting device are concentrically arranged.

[0012] The sealing and film pressing knife device comprises a sealing and film pressing base, a sealing and film pressing expansion and contraction device, a sealing and film pressing splint, a sealing and cutter pressure plate, a sealing and cutter elastic part, a sealing and cutter limiting shaft, and a sealing and cutter main body. The sealing and film pressing expansion and contraction device is arranged on the sealing and film pressing base, and the expansion and contraction end is connected to the sealing and film pressing splint below the sealing and film pressing base. The sealing and cutter pressure plate limit is arranged on the sealing and cutter limiting shaft and can be embedded in the groove body of the sealing and film pressing base on all sides. The sealing and cutter elastic part is arranged on the sealing and cutter limiting shaft. The sealing and cutter main body is connected to the sealing and cutter pressure plate. Compared with the traditional structure, the sealing film punching and sealing mechanism is equivalent to a fixed mold, which is fixed on the base, while the traditional structure generally puts the knife on it, which is equivalent to a movable mold. The advantage is that the knife is hidden in the base and can be easily repaired or operated. The sealing film is cutter body, and the sealing film is cutter body is placed on the sealing film cutting device. When the machine is stopped, the heating block at the bottom of the sealing film cutting device is above the sealing film cutting device, which reduces the heat transferred to the sealing film cutting device. When punching and cutting, the cold cutting is achieved as much as possible, which greatly reduces the generation of burrs. The punching and sealing of the sealing film roll are completed at the same workstation, and the sealing film roll is sucked by the negative pressure suction cup of the sealing head negative pressure system, ensuring the concentricity of the punched sealing film roll, the heating block, and the cup mouth of the capsule coffee cup, thereby ensuring excellent sealing airtightness. The sealing film cutting device adopts a hidden elastic floating design, so that the sealing cutter body is retracted in the sealing film cutting device during daily shutdown.

[0013] Preferably, the sealing film roll conveying system includes a sealing film roll roller and a sealing film roll. The sealing film roll roller is arranged on both sides of the sealing film pressing and cutting device. The sealing film roll contacts the sealing film roll roller and transitions between the sealing film pressing and cutting devices.

[0014] Preferably, the total sealing drive mechanism includes a sealing drive motor, a sealing slide rail, and a sealing crank-connecting rod mechanism. The sealing drive motor is connected to one end of the sealing crank-connecting rod mechanism, and the other end of the sealing crank-connecting rod mechanism is connected to the sealing pressure head device. The sealing pressure head device is limited on the sealing slide rail.

[0015] Preferably, the sealing pressure head device includes a sealing pressure head base plate, a sealing pressure head cylinder, a sealing pressure head connecting shaft, a sealing pressure head bearing seat, a sealing pressure head cylinder driving block, a sealing pressure head punching pressure head, a sealing pressure head fixing seat, a sealing pressure head fixing shaft, and a sealing pressure head heating and adsorption system.

[0016] The sealing pressure head base plate is connected to the sealing total drive mechanism, the sealing pressure head cylinder is fixed on both sides of the sealing pressure head base plate, the sealing pressure head cylinder is connected to the sealing pressure head cylinder drive block, the sealing pressure head bearing seat is fixed on the sealing pressure head base plate, and one end of the sealing pressure head connecting shaft is sleeved inside, the sealing pressure head connecting shaft is fixed on the sealing pressure head cylinder drive block, the other end of the sealing pressure head connecting shaft is connected to the sealing pressure head punching pressure head, the sealing pressure head fixed seat is connected to the sealing pressure head base plate, the sealing pressure head heating system is connected to the sealing pressure head fixed seat through the sealing pressure head fixed shaft, and the sealing pressure head heating adsorption system is connected to the sealing pressure head fixed shaft.

[0017] Preferably, the sealing pressure head heating and adsorption system includes a sealing pressure head heating system and a sealing pressure head negative pressure system. The sealing pressure head negative pressure system is arranged inside the center of the sealing pressure head heating system. A negative pressure suction cup is provided at the end of the sealing pressure head negative pressure system. A heating block is provided at the end of the sealing pressure head heating system. The modular and detachable design of the sealing pressure head heating and adsorption system is convenient for replacing spare parts such as thermocouples and heating blocks during later use. The ceramic heat sealing system with rapid heating can quickly meet the production conditions. The ceramic heat sealing system with rapid heating can quickly meet the production conditions.

[0018] Preferably, the sealing head heating system is a ceramic heat sealing system.

[0019] Preferably, the center position of the negative pressure suction cup is in an X-shaped hollow shape.

[0020] Compared with the prior art, the present invention discloses a sealing film punching and sealing mechanism, which includes a sealing film roll conveying system, a sealing total driving mechanism, a sealing pressure head device, and a sealing film pressing and cutting device. The four are used in combination with each other to play a role.

[0021] ①Compared to the traditional structure, the sealing film punching and sealing mechanism is equivalent to the fixed mold, which is fixed on the base, while the traditional structure generally places the knife on it, which is equivalent to the movable mold. The advantage is that the knife is hidden in the base and will not hurt the operator during maintenance or operation;

[0022] Secondly, during each cycle of operation, the start and stop positions of the sealing head heating system are separated from the sealing, laminating and cutting knife device. For example, when the machine is stopped, the lowest heating block of the sealing head heating system is above the sealing, laminating and cutting knife device, which reduces the heat transfer to the sealing and cutting knife body, and achieves the coldest cutting possible during punching, which greatly reduces the generation of burrs.

[0023] ② The punching and sealing of the sealing film roll are completed at the same station, and the sealing film roll is sucked by the negative pressure suction cup of the sealing pressure head negative pressure system, ensuring the concentricity of the punched sealing film roll, the heating block, and the capsule coffee cup mouth, thereby ensuring excellent sealing airtightness;

[0024] ③The sealing, laminating and cutting knife device adopts a hidden elastic floating design, so that the sealing and cutting knife body is retracted inside the sealing, laminating and cutting knife device during normal shutdown;

[0025] ④ The modular and detachable design of the sealing head heating adsorption system facilitates the replacement of spare parts such as thermocouples and heating blocks during later use. The fast-heating ceramic heat sealing system enables rapid production preparation.

[0026] ⑤The fast-heating ceramic heat sealing system enables rapid production conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the sealing film punching and sealing mechanism of the present invention;

[0028] Figure 2 A half-section schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0029] Figure 3 Schematic diagram of the structure of the sealing film punching and sealing mechanism of the present invention;

[0030] Figure 4 Schematic diagram of the structure of the sealing head device of the present invention;

[0031] Figure 5 Schematic diagram of the structure of the sealing head device of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the sealing head device of the present invention;

[0033] Figure 7 It is a partial cross-sectional schematic diagram of the sealing pressure head heating and adsorption system of the present invention;

[0034] Figure 8 Schematic diagram of the structure of the sealing and film pressing cutter device of the present invention;

[0035] Figure 9 It is a partial cross-sectional schematic diagram of the sealing and film pressing cutting device of the present invention;

[0036] Figure 10 It is a partial cross-sectional schematic diagram of the sealing and film pressing cutting device of the present invention;

[0037] Figure 11 Schematic cross-section of the sealing film punching and sealing mechanism of the present invention;

[0038] Figure 12 Schematic diagram of the structure of the sealing film punching and sealing mechanism of the present invention;

[0039] Figure 13 Schematic diagram of the structure of the sealing film punching and sealing mechanism of the present invention;

[0040] Figure 14 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] A sealing film punching and sealing mechanism includes a sealing film roll conveying system 31, a sealing main drive mechanism 32, a sealing pressure head device 33, and a sealing film pressing and cutting device 34. The sealing main drive mechanism 32 is connected to the sealing pressure head device 33, and the sealing film pressing and cutting device 34 is located below the sealing pressure head device 33. The sealing film roll conveying system 31 is located on both sides of the sealing film pressing and cutting device 34. The sealing pressure head device 33 and the sealing film pressing and cutting device 34 are concentrically arranged.

[0043] The sealing and film pressing and cutting knife device 34 includes a sealing and film pressing base 341, a sealing and film pressing expansion and contraction device 342, a sealing and film pressing splint 343, a sealing and cutting knife pressing plate 344, a sealing and cutting knife elastic member 345, a sealing and cutting knife limiting shaft 346, and a sealing and cutting knife main body 347. The sealing and film pressing and expansion and contraction device 342 is arranged on the sealing and film pressing base 341, and the expansion and contraction end is connected to the sealing and film pressing splint 343 below the sealing and film pressing base 341. The sealing and cutting knife pressing plate 344 is limitedly arranged on the sealing and cutting knife limiting shaft 346, and can be embedded in the groove body of the sealing and film pressing base 341 on all sides. The sealing and cutting knife elastic member 345 is arranged on the sealing and cutting knife limiting shaft 346, and the sealing and cutting knife main body 347 is connected to the sealing and cutting knife pressing plate 344.

[0044] In the normal non-working state, the bottom end of the sealing cutter body 347 is always retracted in the sealing film pressing cutter device 34, keeping a distance from the roll film, effectively avoiding contact between the operator and the blade, thereby effectively avoiding damage from the blade.

[0045] The sealing film roll conveying system 31 includes a sealing film roll roller 311 and a sealing film roll 312 . The sealing film roll roller 311 is arranged on both sides of the sealing film pressing and cutting device 34 . The sealing film roll 312 contacts the sealing film roll roller 311 and transitions between the sealing film pressing and cutting device 34 .

[0046] The total sealing drive mechanism 32 includes a sealing drive motor 321, a sealing slide rail 322, and a sealing crank-connecting rod mechanism 323. The sealing drive motor 321 is connected to one end of the sealing crank-connecting rod mechanism 323, and the other end of the sealing crank-connecting rod mechanism 323 is connected to the sealing pressure head device 33. The sealing pressure head device 33 is limited on the sealing slide rail 322.

[0047] The sealing head device 33 includes a sealing head base plate 331, a sealing head cylinder 332, a sealing head connecting shaft 333, a sealing head bearing seat 334, a sealing head cylinder driving block 335, a sealing head punching head 336, a sealing head fixing seat 337, a sealing head fixing shaft 338, and a sealing head heating and adsorption system 339.

[0048] The sealing pressure head substrate 331 is connected to the sealing total drive mechanism 32, the sealing pressure head cylinder 332 is fixed on both sides of the sealing pressure head substrate 331, the sealing pressure head cylinder 332 is connected to the sealing pressure head cylinder drive block 335, the sealing pressure head bearing seat 334 is fixed on the sealing pressure head substrate 331, and one end of the sealing pressure head connecting shaft 333 is sleeved inside, the sealing pressure head connecting shaft 333 is fixed on the sealing pressure head cylinder drive block 335, and the other end of the sealing pressure head connecting shaft 333 is connected to the sealing pressure head punching pressure head 336, the sealing pressure head fixed seat 337 is connected to the sealing pressure head substrate 331, the sealing pressure head heating system 3391 is connected to the sealing pressure head fixed seat 337 through the sealing pressure head fixed shaft 338, and the sealing pressure head heating and adsorption system 339 is connected to the sealing pressure head fixed shaft 338.

[0049] The sealing head fixing seat 337 is detachably mounted on the sealing head base plate 331, and the sealing head heating system 3391 and the sealing head negative pressure system 3392 in the sealing head heating and adsorption system 339 are both modularly designed, which can facilitate the later replacement of spare parts such as the heating block 33911 or the negative pressure suction cup 33921.

[0050] The sealing pressure head heating and adsorption system 339 includes a sealing pressure head heating system 3391 and a sealing pressure head negative pressure system 3392. The sealing pressure head negative pressure system 3392 is arranged inside the center of the sealing pressure head heating system 3391. A negative pressure suction cup 33921 ​​is provided at the end of the sealing pressure head negative pressure system 3392, and a heating block 33911 is provided at the end of the sealing pressure head heating system 3391.

[0051] The sealing head heating system 3391 is a ceramic heat sealing system, which quickly heats the heating block 33911. Compared with the traditional heating tube that takes 5 minutes to heat up to 150-200°C, the ceramic heat sealing system only needs 1 minute to complete the heating. It is worth noting that although the ceramic heat sealing system has no outstanding improvements, the key point is to ensure the concentricity of the sealing roll film 312, the heating block 33911 and the cup mouth of the capsule coffee cup, so as to ensure excellent sealing airtightness. In addition, the modular and detachable design facilitates the replacement of spare parts such as thermocouples and heating blocks 33911 during later use, and the fast-heating ceramic heat sealing system can quickly meet production conditions.

[0052] The center position of the negative pressure suction cup 33921 ​​is in an X-hollow shape.

[0053] Working mode: The sealing film roll roller 311 drives the sealing film roll 312 to move in steps. After one step, the sealing film pressing and retracting device 342 contracts, and the sealing film pressing clamp 343 and the sealing film pressing base 341 fit together to clamp the sealing film roll 312. The sealing drive motor 321 drives the sealing crank connecting rod mechanism 323 to drive the sealing pressure head device 33 to move on the sealing slide rail 322. The sealing pressure head cylinder 332 is in the extended state at this time. When the sealing pressure head device 33 is lowered, the sealing pressure head punching pressure head 336 contacts and presses down the sealing cutter pressure plate 344. The sealing cutter pressure plate 344 squeezes the sealing cutter elastic member 345 to drive the sealing cutter body 347 to complete the punching work on the sealing roll film 312. At the same time, the negative pressure suction cup 33921 ​​of the sealing pressure head negative pressure system 3392 absorbs the cut sealing roll film 312, and the punched sealing roll film 312 is located in the negative pressure The suction cup 33921 ​​is in the center position to ensure the overall concentricity, and the sealing head cylinder 332 is reset. At this time, the sealing head punching head 336 leaves the sealing cutter pressure plate 344, and the sealing cutter body 347 retracts and returns to its original position. The sealing drive motor 321 continues to drive the sealing crank connecting rod mechanism 323 to drive the sealing head device 33 to move on the sealing slide rail 322. At this time, the heating block 33911 of the sealing head heating system 3391, the punched sealing film 312, and the cup mouth of the capsule coffee cup are in contact. The sealing film 312 completes the heat sealing work under the sealing temperature and pressure of the heating block 33911. At the same time as the sealing is completed, the negative pressure suction cup 33921 ​​in the center of the sealing module deflates and no longer adsorbs the sealing film 312. After completing the above actions, the sealing drive motor 321 reverses to drive the sealing head device 33 to move upward and return to the original position. At this point, a cycle action is completed.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0055] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0056] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sealing film punching and sealing mechanism, characterized in that: The invention comprises a sealing film roll conveying system (31), a sealing main driving mechanism (32), a sealing pressure head device (33), and a sealing film pressing and cutting device (34). The sealing main driving mechanism (32) is connected to the sealing pressure head device (33). The sealing film pressing and cutting device (34) is located below the sealing pressure head device (33). The sealing film roll conveying system (31) is located on both sides of the sealing film pressing and cutting device (34). The sealing pressure head device (33) and the sealing film pressing and cutting device (34) are concentrically arranged. The sealing and film pressing knife device (34) comprises a sealing and film pressing base (341), a sealing and film pressing telescopic device (342), a sealing and film pressing clamp (343), a sealing and cutting knife pressing plate (344), a sealing and cutting knife elastic member (345), a sealing and cutting knife limiting shaft (346), and a sealing and cutting knife body (347). The sealing and film pressing telescopic device (342) is arranged on the sealing and film pressing base (341), and the telescopic end is connected to the sealing and film pressing clamp (343) below the sealing and film pressing base (341). The sealing and cutting knife The pressure plate (344) is limitedly arranged on the sealing cutter limiting shaft (346) and can be embedded in the groove body of the sealing film pressing base (341) on all sides. The sealing cutter elastic member (345) is arranged on the sealing cutter limiting shaft (346). The sealing cutter body (347) is connected to the sealing cutter pressure plate (344). The sealing film roll conveying system (31) includes a sealing film roll (312). The sealing film pressing clamp (343) and the sealing film pressing base (341) are fitted to clamp the sealing film roll (312). The sealing total drive mechanism (32) comprises a sealing drive motor (321), a sealing slide rail (322), and a sealing crank connecting rod mechanism (323). The sealing drive motor (321) is connected to one end of the sealing crank connecting rod mechanism (323), and the other end of the sealing crank connecting rod mechanism (323) is connected to the sealing pressure head device (33). The sealing pressure head device (33) is limitedly arranged on the sealing slide rail (322). The sealing pressure head device (33) comprises a sealing pressure head base plate (331), a sealing pressure head cylinder (332), a sealing pressure head connecting shaft (333), a sealing pressure head bearing seat (334), a sealing pressure head cylinder drive block (335), a sealing pressure head punching pressure head (336), a sealing pressure head fixing seat (337), a sealing pressure head fixing shaft (338), and a sealing pressure head heating and adsorption system (339). The sealing pressure head base plate (331) is connected to the sealing main drive mechanism (32); the sealing pressure head cylinder (332) is fixed on both sides of the sealing pressure head base plate (331); the sealing pressure head cylinder (332) is connected to the sealing pressure head cylinder drive block (335); the sealing pressure head bearing seat (334) is fixed on the sealing pressure head base plate (331) and has one end of the sealing pressure head connecting shaft (333) sleeved therein; the sealing pressure head connecting shaft (333) is fixed on the sealing pressure head cylinder drive block (335); the other end of the sealing pressure head connecting shaft (333) is connected to the sealing pressure head punching pressure head (336); the sealing pressure head fixing seat (337) is connected to the sealing pressure head base plate (331); The sealing pressure head heating and adsorption system (339) is connected to the sealing pressure head fixing seat (337) through the sealing pressure head fixing shaft (338). The sealing pressure head heating and adsorption system (339) is connected to the sealing pressure head fixing shaft (338). The sealing pressure head heating and adsorption system (339) includes a sealing pressure head heating system (3391) and a sealing pressure head negative pressure system (3392). The sealing pressure head negative pressure system (3392) is arranged inside the center of the sealing pressure head heating system (3391). A negative pressure suction cup (33921) is provided at the end of the sealing pressure head negative pressure system (3392). A heating ironing block (33911) is provided at the end of the sealing pressure head heating system (3391).

2. The sealing film punching and sealing mechanism according to claim 1, characterized in that: The sealing film roll conveying system (31) further comprises a sealing film roll roller (311), wherein the sealing film roll roller (311) is arranged on both sides of the sealing film pressing and cutting device (34), and the sealing film roll (312) contacts the sealing film roll roller (311).

3. The sealing film punching and sealing mechanism according to claim 1, characterized in that: The sealing head heating system (3391) is a ceramic heat sealing system.

4. The sealing film punching and sealing mechanism according to claim 1, characterized in that: The center position of the negative pressure suction cup (33921) is an X-hollow shape.

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