Sterile longitudinal sealing chamber on filling machine

Abstract

The utility model belongs to the technical field of filling longitudinal sealing, and discloses a sterile longitudinal sealing chamber on a filling machine, a columnar packing material which continuously penetrates through a chamber body is arranged in the chamber body, and the columnar packing material is provided with a longitudinal seam; the longitudinal sealing hot air heating piece is hinged to the inner wall of the chamber body, and the longitudinal sealing hot air heating piece rotates between a heat sealing position and a standby position on the peripheral side of the columnar packing material so as to conduct heat sealing on the longitudinal seam; one end of the connecting rod assembly is detachably connected with the inner wall of the chamber body, and the other end of the connecting rod assembly is connected with the hot air baffle; the hot air baffle is located between the longitudinal sealing hot air heating piece and the columnar packing material and used for blocking hot air from blowing towards the columnar packing material when the longitudinal sealing hot air heating piece corresponds to the standby position. According to the longitudinal sealing hot air blocking assembly, hot air can be prevented from being continuously and directly blown to a stagnant package when a filling machine stops for a short time or abnormally, so that an aluminum foil layer is prevented from being continuously heated and falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of filling longitudinal sealing, and more specifically, it relates to a longitudinal sealing hot air blocking component of a sterile filling machine that uses hot air longitudinal sealing for packaging. Background Technique

[0002] Currently, in the aspect of fluid food processing, there is a brick-shaped sterile filling machine with a longitudinal sealing chamber in a sterile environment. Its function is to roll a sheet-shaped packaging material into a column and seal the longitudinal joint of the connected columns through sterile hot air, and then enter the filling and transverse sealing stages to complete the filling and forming of the product. In this sterile longitudinal sealing chamber, the columnar packaging material is generally filled through a filling pipe extending into the columnar packaging material. And generally, a hot air heating plate is used to heat and longitudinally seal the longitudinal joint of the columnar packaging material. Before longitudinal sealing and filling, a positive pressure sterile environment is established in the longitudinal sealing chamber. This sterile environment is established and maintained by a filtered sterile air (hot air) circulation system. The sterile air is pressurized by an air pressure device, reaches a predetermined temperature through a main air heater, enters the sterile chamber through the air outlet on the surface of the longitudinal sealing heating plate, and blows towards the position of the composite film that needs to be heated to complete the longitudinal sealing of the columnar packaging material. Among them, the longitudinal sealing heating plate can be rotated and adjusted as a whole around the columnar packaging material to adjust the hot air blowing angle. The sterile air (hot air) blowing towards the packaging will be recycled through the hot air recovery port, and the recycled sterile air will be reheated to ensure the temperature requirements during recycling. The entire circulation system is a closed pipeline, and the entire process is in a sterile environment.

[0003] Generally, the inner wall of the used columnar packaging material uses a composite film with an aluminum foil material as an isolation layer to block light and isolate oxygen. During the process of the columnar packaging material being rolled into a column and moving downward, because heating sealing strips are arranged on both sides of its longitudinal joint, the hot air blown out by the longitudinally arranged longitudinal sealing heating plate in the longitudinal sealing chamber heats the heating sealing strips, causing them to bond, and then causing the columnar packaging material to bond. Moreover, the bonded columnar packaging material is in a continuous downward moving assembly line operation to continuously heat-seal the longitudinal joint of the columnar packaging material and will not cause the aluminum foil material to be deformed and fall off due to continuous blowing at a certain position of the packaging.

[0004] However, during continuous production operation, there is a need for short stops due to material shortage or packaging material replacement, and there may also be short abnormal shutdowns. To ensure production efficiency and avoid time and energy losses caused by restarting the machine, it is necessary to ensure that the positive pressure and temperature in the sterile environment of the longitudinal sealing chamber are not changed. Therefore, the longitudinal sealing heating plate of the filling machine will still continuously blow out hot air. However, at this time, the columnar packaging material is in a stationary state. The filling machine is equipped with an automatic control device that can horizontally move the longitudinal sealing heating plate around the filling device. It can automatically control its movement when the filling machine has a short stop or abnormal shutdown. However, even if the longitudinal sealing heating plate is automatically adjusted to change the direction of the hot air blowing, there will still be a phenomenon that the longitudinal sealing heating plate continuously blows hot air towards the surface of the columnar packaging material, resulting in the aluminum foil layer on the inner wall of the columnar packaging material being heated for too long and falling off and sticking to the filling pipe. As the product is filled, it flows into the product, threatening the product quality. Inevitably, it is necessary to clean or restart the machine, seriously affecting the normal filling and longitudinal sealing process and reducing work efficiency.

[0005] Therefore, how to provide a sterile longitudinal sealing chamber with a longitudinal sealing hot air blocking component that can block the hot air of the longitudinal sealing heating plate, avoiding the problem that when the filling machine has a short stop or abnormal shutdown, the aluminum foil layer on the inner wall of the columnar packaging material is heated for too long due to the longitudinal sealing heating plate continuously blowing hot air towards the columnar packaging material, falling off and sticking to the filling pipe, and finally the aluminum foil layer sticking to the filling pipe flows into the product during product filling, threatening the product quality, is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] In view of this, the present utility model provides a sterile longitudinal sealing chamber on a filling machine. A longitudinal sealing hot air blocking component is installed and finely adjusted and fixed in the sterile longitudinal sealing chamber. When the longitudinal sealing of the filling machine stops, the longitudinal sealing hot air heating element can be rotated to horizontally rotate around the columnar packaging material, making the air outlet away from the longitudinal seam of the packaging material. At the same time, the longitudinal sealing hot air blocking component is spaced to block between the columnar packaging material and the longitudinal sealing hot air heating element, and a hot air recovery pipe is provided to guide and recover the hot air, so as to prevent the hot air from continuously blowing towards the packaging material and continuously heating the inside of the box, thereby preventing the packaging aluminum foil layer from falling off.

[0007] To achieve the above object, the present utility model adopts the following technical solutions:

[0008] A sterile longitudinal sealing chamber on a filling machine, comprising:

[0009] A chamber body, in which a columnar packaging material continuously passing through the chamber body is provided, and the columnar packaging material is provided with a longitudinal seam;

[0010] A longitudinal sealing hot air heating element, which is hinged on the inner wall of the chamber body and rotates between a heat sealing position and a standby position corresponding to the outer peripheral side of the columnar packaging material to heat seal the longitudinal seam;

[0011] Longitudinal sealing hot air blocking assembly, the longitudinal sealing hot air blocking assembly includes a connecting rod assembly and a hot air baffle, one end of the connecting rod assembly is detachably connected to the inner wall of the chamber body, and the other end is connected to the hot air baffle; the hot air baffle is located between the longitudinal sealing hot air heating element and the columnar packaging material for blocking the hot air from blowing towards the columnar packaging material direction when the longitudinal sealing hot air heating element is in the corresponding standby position;

[0012] Hot air recovery pipe, the hot air recovery pipe is installed on the inner wall of the chamber body and is communicated with a recovery fan outside the chamber body.

[0013] Through the above technical solutions, it can be seen that compared with the prior art, the present utility model discloses a sterile longitudinal sealing chamber on a filling machine. The longitudinal sealing hot air blocking assembly is arranged in the sterile longitudinal sealing chamber of the filling machine. A perfusion pipe and a columnar packaging material to be longitudinally sealed that continuously penetrates the sterile chamber body and moves thereon are arranged in the sterile longitudinal sealing chamber. When the longitudinal sealing work is normally carried out, the longitudinal sealing hot air heating element in the sterile longitudinal sealing chamber is moved to a position where its air outlet end is opposite to the longitudinal joint of the packaging. The hot air baffle is adjusted to a position away from the longitudinal joint through the connecting rod assembly and fixed. At this time, the hot air baffle will not block the hot air of the longitudinal sealing hot air heating element. The hot air discharged by the longitudinal sealing hot air heating element can directly blow towards the joint of the packaging to seal the packaging, completing the longitudinal sealing process. At the same time, the hot air recovery pipe recovers the internal hot air and reheats it to keep the temperature and air pressure in the sterile longitudinal sealing chamber from changing greatly; when the filling machine accidentally stops, in order to ensure that the temperature and air pressure inside the sterile chamber remain unchanged, the longitudinal sealing hot air heating element still needs to continuously supply hot air. At this time, the air outlet end of the longitudinal sealing hot air heating element is automatically controlled by an external automatic control device to automatically move horizontally to the position where the hot air baffle is set, so that the hot air baffle is placed between the air outlet end face of the longitudinal sealing hot air heating element and the outer side wall surface of the columnar packaging material. The hot air discharged by the longitudinal sealing hot air heating element is directly blocked by the hot air baffle to form a hot air guiding channel, which can prevent the hot air discharged by the longitudinal sealing hot air heating element from directly blowing onto the outer side wall of the columnar packaging material, thereby avoiding the continuous heating of the position on the columnar packaging material corresponding to the longitudinal sealing hot air heating element and causing the aluminum foil layer to fall off. And because there is a hot air recovery pipe installed in the sterile longitudinal sealing chamber, it can just attract the hot air isolated by the hot air guiding channel to the hot air recovery pipe and suck it out through the recovery fan. Because the recovery fan is connected to the hot air heating device outside, the hot air can be recovered and reheated twice. Therefore, the longitudinal sealing hot air blocking assembly fixedly installed in the sterile longitudinal sealing chamber, through cooperation with the horizontally movable longitudinal sealing hot air heating element and the hot air recovery pipe, realizes the function of blocking and guiding hot air during shutdown, avoids the phenomenon of the aluminum foil layer of the composite film falling off caused by overheating, improves the production efficiency of filling and longitudinal sealing, ensures the continuity of work, reduces energy consumption, material loss and packaging material loss. More importantly, it eliminates the potential product foreign matter risk and ensures product quality.

[0014] Further, the longitudinal-sealing hot-air blocking assembly further includes a fixing plate, one end face of the fixing plate is detachably connected to the inner wall of the chamber body, and the other end face is fixedly connected to one end of the connecting rod assembly.

[0015] The beneficial effect of adopting the above technical solution is that the longitudinal-sealing hot-air blocking assembly can be conveniently disassembled.

[0016] Further, the connecting rod assembly includes a fixed rod, an angle adjusting rod and a bolt. One end of the fixed rod is fixedly connected to the inner end face of the fixing plate, and the other end is detachably connected to the angle adjusting rod through the bolt. The other end of the angle adjusting rod is fixedly installed on the windward surface of the hot-air baffle.

[0017] The beneficial effect of adopting the above technical solution is that when installing the hot-air baffle, the initial angle of installation of the hot-air baffle can be adjusted and fixed through the adjusting rod to prevent it from interfering with the normal longitudinal sealing work of the longitudinal-sealing hot-air heating member on the cylindrical packaging material and avoiding damage caused by mutual collision between the two during the subsequent adjustment process of the longitudinal-sealing hot-air heating member; in subsequent work, in the non-working state of a complete shutdown, the staff can loosen the bolt and then adjust the adjusting rod to perform periodic maintenance and adjustment on the hot-air baffle to prevent its position and angle from shifting during long-term work and affecting other structures, and the adjustment work can be completed through the adjusting rod without disassembling and reinstalling the hot-air baffle, improving the equipment maintenance efficiency.

[0018] Further, the other end of the fixed rod has a first connection platform, one end of the angle adjusting rod has a second connection platform, and the first connection platform and the second connection platform are detachably connected through the bolt.

[0019] Further, a threaded hole is formed in the first connection platform, a through hole is formed in the second connection platform, and the bolt passes through the through hole and is screwed into the threaded hole.

[0020] The beneficial effect of adopting the above technical solution is that the connection between the fixed rod and the angle adjusting rod can be facilitated, and the rotational adjustment of the angle adjusting rod can be facilitated.

[0021] Further, the fixing plate, the fixed rod, the angle adjusting rod and the hot-air baffle are all stainless steel parts.

[0022] The beneficial effect of adopting the above technical solution is to prevent the device from rusting inside and extend the service life of the device.

[0023] Further, the longitudinal-sealing hot-air heating member includes:

[0024] A hot air supply box, which is fixed on the inner wall of the chamber body and is communicated with an external air heating device;

[0025] A connecting piece, one end of which is hinged to the outer end face of the hot air supply box;

[0026] A longitudinal sealing hot air heating plate, which is fixedly connected to the other end of the connecting piece. The longitudinal sealing hot air heating plate has a hot air cavity inside. The hot air cavity is connected to the hot air supply box through a ventilation pipe. A plurality of hot air outlets communicating with the hot air cavity are arranged on one side surface of the longitudinal sealing hot air heating plate. The longitudinal sealing hot air heating plate rotates between the heat sealing position and the standby position on the outer peripheral side of the columnar packaging material to heat-seal the longitudinal seam by the hot air blown out through the hot air outlets.

[0027] Further, the connecting piece includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the hot air supply box, and the other end is hinged to one end of the second connecting rod. The other end of the second connecting rod is fixed to the longitudinal sealing hot air heating plate.

[0028] The beneficial effect of adopting the above technical solution is that the position angles of the two rod bodies can be adjusted by adjusting the first connecting rod and the second connecting rod, avoiding the collision of the first connecting rod, the second connecting rod and the longitudinal sealing hot air heating plate with other structures during horizontal movement to ensure the safety of the equipment.

[0029] Further, the hot air recovery pipe is installed at the bottom of the aseptic longitudinal sealing chamber and is located below the hot air baffle.

[0030] The beneficial effect of adopting the above technical solution is that the hot air recovery pipe can conveniently recover the hot air at the hot air guiding channel directly, avoiding the hot air from dispersing to the surroundings inside the aseptic longitudinal sealing box, improving the hot air recovery effect. At the same time, the hot air is recovered into the external air heating device for air heating again to form a hot air cycle and reduce the energy consumption.

[0031] Further, the hot air baffle is an arc-shaped plate, and the outer wall surface of the arc-shaped plate is the wind-blocking surface.

[0032] The beneficial effect of adopting the above technical solution is that by setting the hot air baffle as an arc-shaped plate, the wind-blocking area can be increased by relying on the arc surface, so that the hot air baffle can block the hot air blown out from the air outlet end of the longitudinal sealing hot air heating part, reducing the adjustment angle of the longitudinal sealing hot air heating part and avoiding the collision and damage between the two, and prolonging the service life of the device. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0034] Figure 1 It is a front view structural schematic diagram of the longitudinal sealing box provided by the present invention.

[0035] Figure 2 It is a three-dimensional structural schematic diagram of the longitudinal sealing hot air blocking assembly provided by the present invention.

[0036] Figure 3 It is a three-dimensional structural schematic diagram of the normal longitudinal sealing state provided by the present invention.

[0037] Figure 4 It is a three-dimensional structural schematic diagram of short-stop blocking hot air provided by the present invention.

[0038] Figure 5 It is a three-dimensional structural schematic diagram of the longitudinal sealing hot air heating element provided by the present invention.

[0039] Among them, 1 - chamber body, 11 - chamber door, 2 - columnar packaging material, 21 - longitudinal seam, 3 - longitudinal sealing hot air heating element, 31 - hot air supply box, 32 - connecting piece, 321 - first connecting rod, 322 - second connecting rod, 33 - longitudinal sealing hot air heating plate, 331 - hot air outlet, 34 - ventilation pipe, 4 - longitudinal sealing hot air blocking assembly, 41 - link assembly, 411 - fixed rod, 4111 - first connecting platform, 412 - angle adjusting rod, 4121 - second connecting platform, 413 - bolt, 42 - hot air baffle, 43 - fixing plate, 5 - hot air recovery pipe, 6 - perfusion pipe. Specific embodiments

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0041] An embodiment of the present utility model discloses an aseptic longitudinal sealing chamber on a filling machine, wherein a chamber body 1 is provided with a columnar packaging material 2 which continuously passes through the chamber body 1, and the columnar packaging material 2 is provided with a longitudinal seam 21; a longitudinal sealing hot air heating element 3 is hinged on the inner wall of the chamber body 1, and the longitudinal sealing hot air heating element 3 rotates between a heat sealing position and a standby position corresponding to the outer peripheral side of the columnar packaging material 2 to heat-seal the longitudinal seam 21; a longitudinal sealing hot air blocking assembly 4 includes a connecting rod assembly 41 and a hot air baffle 42, one end of the connecting rod assembly 41 is detachably connected to the inner wall of the chamber body 1, and the other end is connected to the hot air baffle 42; the hot air baffle 42 is located between the longitudinal sealing hot air heating element 3 and the columnar packaging material 2 and is used to block hot air from blowing toward the columnar packaging material 2 when the longitudinal sealing hot air heating element 3 corresponds to the standby position; a hot air recovery pipe 5, the hot air recovery pipe 5 is installed on the inner wall of the chamber body 1 and is connected to the recovery fan outside the chamber body 1.

[0042] Specifically, it also includes an infusion pipe 6, which is longitudinally arranged in the sterile longitudinal sealing chamber and connected to the external infusion device. The columnar packaging material 2 with a longitudinal seam 21 continues to pass through the infusion pipe 6. The longitudinal hot air heating element 3 is spaced apart from the columnar packaging material 2 and its air outlet surface is opposite to the longitudinal seam 21. The outside of the sterile longitudinal sealing chamber is provided with an automatic control device for connecting and controlling the horizontal movement of the longitudinal hot air heating element 3 around the columnar packaging material 2, so that the air outlet surface of the longitudinal hot air heating element 3 moves horizontally around the outer wall of the columnar packaging material 2. The hot air baffle 42 is spaced apart from the columnar packaging material 2 and the hot air is passed through the connecting rod assembly 41. The wind baffle 42 is adjusted to be away from the longitudinal seam 21 and fixed. Under normal conditions, a hot air channel is formed between the air outlet surface of the longitudinally sealed hot air heating element 3 and the outer peripheral surface of the columnar packaging material 2 and is opposite to the longitudinal seam 21; when the machine is stopped, the longitudinally sealed hot air heating element 3 rotates to a position away from the longitudinal seam 21 so that the hot air baffle 42 is located between the air outlet surface of the longitudinally sealed hot air heating element 3 and the outer surface of the columnar packaging material 2, and a hot air guide channel is formed between the wind shield surface of the hot air baffle 42 and the air outlet end of the longitudinally sealed hot air heating element 3. The hot air recovery pipe 5 is installed at the bottom end of the aseptic longitudinal sealing chamber 100 to guide and recover the hot air.

[0043] In one embodiment of the sterile longitudinal sealing chamber of the present invention, the side wall of the sterile longitudinal sealing chamber corresponding to the longitudinal seam 21 is the front side, and the front side is also provided with a chamber door 11. When not in operation, the chamber door can be opened conveniently by a staff member to adjust and inspect the various devices in the sterile longitudinal sealing chamber to ensure that no malfunction occurs during operation.

[0044] Specifically, the door 11 and side panels of the sterile longitudinal sealing chamber are made of transparent tempered glass, which not only makes the box body stable, but also allows the staff to intuitively observe the working conditions inside the box and respond and adjust to emergencies in a timely manner.

[0045] An embodiment of the longitudinal seal hot air blocking assembly 4 in the present utility model. The longitudinal seal hot air blocking assembly 4 further includes a fixing plate 43. One end face of the fixing plate 43 is detachably connected to the inner wall of the chamber body 1, and the other end face is fixedly connected to one end of the connecting rod assembly 41. Specifically, the fixing plate 43 is screwed to the inner wall of the chamber body 1 by screws, which facilitates the disassembly and assembly operations by the staff.

[0046] An embodiment of the connecting rod assembly 41 in the present utility model. The connecting rod assembly 41 includes a fixed rod 411, an angle adjusting rod 412, and a bolt 413. One end of the fixed rod 411 is fixedly connected to the other end face of the fixing plate 43, and the other end is detachably connected to the angle adjusting rod 412 by the bolt 413. The other end of the angle adjusting rod 412 is fixedly installed on the outer peripheral wall surface of the hot air baffle 42. In the non-working state of a complete shutdown, the staff can loosen the bolt 413 and then rotate the adjusting rod 412 to make the hot air baffle 42 in a suitable position to prevent it from interfering with the normal longitudinal sealing operation of the longitudinal seal hot air blocking assembly 4 on the columnar packaging material 2.

[0047] In the above embodiment, the other end of the fixed rod 411 has a first connection platform 4111, and one end of the angle adjusting rod 412 has a second connection platform 4121. The first connection platform 4111 and the second connection platform 4121 are detachably connected by the bolt 413. A threaded hole is provided on the first connection platform 4111, and a through hole is provided on the second connection platform 4121. The bolt 413 passes through the through hole and is screwed to the threaded hole.

[0048] Specifically, arc-shaped ends are provided on the connection end sides of the first connection platform 4121 and the second connection platform 4111, which facilitates their connection and also facilitates the rotation of the angle adjusting rod 412 during rotation adjustment without collision at the connection end of the fixed rod 411, thereby prolonging the service life of the adjusting rod 412 and the fixed rod 411.

[0049] In the above embodiment, the fixing plate 43, the fixed rod 411, the angle adjusting rod 412, and the hot air baffle 42 are all stainless steel parts, which can prevent the device from rusting inside and prolong the service life of the device.

[0050] Another embodiment of the present utility model. The longitudinal seal hot air heating element 3 includes:

[0051] A hot air supply box 31, which is fixed on the inner wall of the chamber body 1 and is communicated with an external air heating device;

[0052] A connecting member 32, one end of which is hinged to the outer end face of the hot air supply box 31;

[0053] The longitudinal sealing hot air heating plate 33 is fixedly connected to the other end of the connecting member 32. The longitudinal sealing hot air heating plate 33 has a hot air cavity inside. The hot air cavity is connected to the hot air supply box 31 through an air pipe 34. A plurality of hot air outlets 331 communicating with the hot air cavity are provided on one side surface of the longitudinal sealing hot air heating plate 33. The longitudinal sealing hot air heating plate 33 rotates between the heat sealing position and the standby position on the outer peripheral side of the columnar packaging material 2 to heat-seal the longitudinal seam 21 by the hot air blown out from the hot air outlets 331.

[0054] In the above embodiment, the connecting member 32 includes a first connecting rod 321 and a second connecting rod 322. One end of the first connecting rod 321 is hinged to the hot air supply box 31, and the other end is hinged to one end of the second connecting rod 322. The other end of the second connecting rod 322 is fixed to the longitudinal sealing hot air heating plate 33. The position angles of the two rod bodies can be adjusted by adjusting the connection part of the first connecting rod 321 and the second connecting rod 322, so as to avoid the first connecting rod 321, the second connecting rod 322 and the longitudinal sealing hot air heating plate 33 from colliding with other structures during horizontal movement, and ensure the safety of the equipment.

[0055] In the above embodiment, the fixing plate 43 is fixedly installed on the inner wall of the side plate of the back plate adjacent to the aseptic longitudinal sealing chamber. The rod body of the first connecting rod 321 abuts against the edge end of the hot air baffle 42. When adjusting the hot air baffle 42 and the longitudinal sealing hot air blocking assembly 4 respectively, the angle adjusting rod 412 and the first connecting rod 321 can be made not to interfere with each other, which is convenient for adjusting their positions, and can avoid their mutual collision and collision damage to other structures in the aseptic longitudinal sealing chamber, reducing the use risk.

[0056] In an embodiment of the present invention, the hot air baffle 43 is an arc-shaped plate, and the outer wall surface of the arc-shaped plate is the wind blocking surface. The longitudinal sealing hot air heating plate 33 is a square plate. The longitudinal sealing hot air heating plate 3 is arranged at an interval with the hot air baffle 42 and is parallel to the arc-shaped section on the hot air baffle 42. During a short stop, the hot air blown out from the longitudinal sealing hot air heating plate 33 can be blocked by the hot air baffle 42, which is the best angle for the hot air baffle 42 to block the longitudinal sealing hot air heating plate 33.

[0057] In another embodiment of the present invention, the hot air recovery pipe 5 is installed at the bottom inside the aseptic longitudinal sealing chamber and below the hot air baffle 42. It is convenient for the hot air recovery pipe 5 to directly recover the hot air blocked by the hot air baffle 42, avoid the hot air from dispersing to the surrounding of the aseptic longitudinal sealing chamber, improve the hot air recovery effect, and at the same time communicate with an external air heating device to heat the air again, forming a hot air cycle and reducing energy consumption.

[0058] The working principle of the longitudinal sealing hot air blocking assembly on a filling machine in the present invention is as follows:

[0059] The filling machine is equipped with a sterile chamber, and the process of longitudinal sealing during filling can be completed in the sterile chamber. Before starting filling, open the sterile chamber door, install the longitudinal sealing hot air blocking component into the sterile longitudinal sealing box, install the fixed plate on the inner side plate of the sterile longitudinal sealing box, loosen the bolts, and adjust the adjusting rod to adjust the horizontal position and angle of the hot air baffle so that it is at a position away from the longitudinal seam of the columnar packaging material and fix it, then the installation of the hot air baffle can be completed. During subsequent use, only adjust the angle of the hot air baffle through the adjusting rod; then, adjust the second connecting rod to manually rotate and debug the longitudinal sealing hot air heating component so that the air outlet plate of the longitudinal sealing hot air heating component is parallel to and corresponding to the hot air baffle, and ensure that the first connecting rod does not collide with the hot air baffle during movement. At this time, fix the bolts to keep the hot air baffle fixed at the same position, and then adjust the first connecting rod to rotate the longitudinal sealing hot air heating component to the longitudinal seam of the columnar packaging material so that the air outlet plate faces the longitudinal seam, thus completing the adjustment of the longitudinal sealing hot air heating component. After that, the machine can be started to normally carry out the filling and longitudinal sealing work.

[0060] When the machine needs a short stop or an emergency stop due to a malfunction, it is necessary to turn off the filling device and the conveying device of the columnar packaging material. However, to ensure that the temperature and air pressure in the sterile longitudinal sealing chamber do not change significantly due to the machine stop, the longitudinal sealing hot air heating component will maintain the air supply state. Because the filling device stops, at this time the columnar packaging material is in a stagnant state. To avoid the hot air continuously blowing on the same position of the columnar packaging material, through the automatic control device of the longitudinal sealing hot air heating component outside the sterile longitudinal sealing chamber, the longitudinal sealing hot air heating plate automatically moves and adjusts to move to the position of the hot air baffle so that the hot air baffle is exactly between the air outlet plate and the columnar packaging material. After the hot air outlet continuously blows out air, a hot air guiding channel is formed between the hot air outlet and the back side of the hot air baffle, and then the hot air is guided and recovered through the hot air recovery pipe directly below to form a hot air cycle, achieving the internal temperature and air pressure balance. And because the hot air does not continuously blow on the outside of the columnar packaging material, the composite aluminum foil layer on the columnar packaging material will not fall off and adhere to the filling pipe due to continuous temperature rise, preventing it from entering the package together with the product and affecting the product quality.

[0061] Therefore, the longitudinal sealing hot air blocking component in the present utility model can block the hot air when the filling machine has a short stop, and at the same time cooperate with the hot air recovery pipe to guide and recover the hot air, maintaining the balance inside the sterile box body to protect the aluminum foil layer on the stagnant columnar packaging material from being damaged, without the need to replace the columnar packaging material and clean the filling device, improving the production efficiency of filling and longitudinal sealing, ensuring the continuity of work, reducing energy consumption, material loss and packaging material loss. More importantly, it eliminates the potential risk of product foreign objects and ensures the product quality.

[0062] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the various embodiments can be referred to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the description in the method section.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sterile longitudinal sealing chamber on a filling machine, characterized in that, Comprising: A chamber body (1), within which there is a columnar packaging material (2) continuously penetrating the chamber body (1), and the columnar packaging material (2) is provided with a longitudinal seam (21); A longitudinal sealing hot air heating member (3), which is hinged to the inner wall of the chamber body (1), and the longitudinal sealing hot air heating member (3) rotates between a heat sealing position and a standby position corresponding to the outer peripheral side of the columnar packaging material (2) to heat seal the longitudinal seam (21); A longitudinal sealing hot air blocking assembly (4), which includes a link assembly (41) and a hot air baffle (42), one end of the link assembly (41) is detachably connected to the inner wall of the chamber body (1), and the other end is connected to the hot air baffle (42); the hot air baffle (42) is located between the longitudinal sealing hot air heating member (3) and the columnar packaging material (2) to block the hot air from blowing towards the columnar packaging material (2) when the longitudinal sealing hot air heating member (3) is in the standby position; A hot air recovery pipe (5), which is installed on the inner wall of the chamber body (1) and is communicated with a recovery fan outside the chamber body (1).

2. The aseptic longitudinal sealing chamber on a filling machine according to claim 1, wherein, The longitudinal sealing hot air blocking assembly (4) further includes a fixing plate (43), one side end face of the fixing plate (43) is detachably connected to the inner wall of the chamber body (1), and the other side end face is fixedly connected to one end of the link assembly (41).

3. The aseptic longitudinal sealing chamber on a filling machine according to claim 2, characterized in that, The link assembly (41) includes a fixed rod (411), an angle adjusting rod (412) and a bolt (413), one end of the fixed rod (411) is fixedly connected to the fixing plate (43), and the other end is detachably connected to one end of the angle adjusting rod (412) through the bolt (413), and the other end of the angle adjusting rod (412) is fixed on the wind shielding surface of the hot air baffle (42).

4. The aseptic longitudinal sealing chamber on a filling machine according to claim 3, characterized in that, The other end of the fixed rod (411) has a first connection platform (4111), one end of the angle adjusting rod (412) has a second connection platform (4121), and the first connection platform (4111) and the second connection platform (4121) are detachably connected through the bolt (413).

5. The aseptic longitudinal sealing chamber on a filling machine according to claim 4, characterized in that, A threaded hole is provided on the first connection platform (4111), a through hole is provided on the second connection platform (4121), and the bolt (413) passes through the through hole and is screwed with the threaded hole.

6. The aseptic longitudinal sealing chamber on a filling machine according to claim 3, characterized in that, The fixing plate (43), the fixed rod (411), the angle adjusting rod (412) and the hot air baffle (42) are all stainless steel parts.

7. The aseptic longitudinal sealing chamber on a filling machine according to claim 1, characterized in that, The longitudinal sealing hot air heating member (3) includes: A hot air supply box (31), which is fixed on the inner wall of the chamber body (1), and the hot air supply box (31) is communicated with an external air heating device; A connecting member (32), one end of the connecting member (32) is hinged to the outer end face of the hot air supply box (31); The longitudinal seal hot air heating plate (33), the longitudinal seal hot air heating plate (33) is fixedly connected to the other end of the connecting member (32). The longitudinal seal hot air heating plate (33) has a hot air cavity inside. The hot air cavity is connected to the hot air supply box (31) through an air pipe (34). A plurality of hot air outlets (331) communicating with the hot air cavity are provided on one side surface of the longitudinal seal hot air heating plate (33). The longitudinal seal hot air heating plate (33) rotates between the heat sealing position and the standby position corresponding to the outer peripheral side of the columnar packaging material (2) to heat seal the longitudinal seam (21) by the hot air blown out through the hot air outlets (331).

8. The aseptic longitudinal sealing chamber on a filling machine according to claim 7, characterized in that, The connecting member (32) includes a first connecting rod (321) and a second connecting rod (322). One end of the first connecting rod (321) is hinged to the hot air supply box (31), and the other end is hinged to one end of the second connecting rod (322). The other end of the second connecting rod (322) is fixed to the longitudinal seal hot air heating plate (33).

9. The aseptic longitudinal sealing chamber on a filling machine according to claim 1, characterized in that, The hot air recovery pipe (5) is located below the hot air baffle (42).

10. An aseptic longitudinal sealing chamber on a filling machine according to any one of claims 1-9, characterized in that, The hot air baffle (42) is an arc-shaped plate, and the outer wall surface of the arc-shaped plate is the wind shielding surface.

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