Flexible milk Tetra Pak filling device
By installing shaped tubes and ultraviolet sterilizers in the milk filling equipment, the problems of pressure imbalance and air pollution were solved, achieving pressure balance and deep air sterilization, thus ensuring a smooth filling process and product quality.
Patent Information
- Application Number
- CN202520015035.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing milk filling equipment suffers from insufficient precision in pressure regulation inside and outside the mixing tank, leading to pressure imbalance that affects filling results and product quality. Inadequate air filtration fails to effectively remove impurities and microorganisms, resulting in insufficient sterilization and a risk of product contamination.
A flexible Tetra Pak milk filling device was designed, which adopts a combination structure of irregular tube, sealing plug, slide bar assembly, slide plate and spring to balance the internal and external pressure difference, and performs deep sterilization treatment of air through multi-layer filtration and ultraviolet sterilizer to ensure air quality.
It effectively regulates the pressure inside and outside the mixing tank, prevents deformation and damage to the seal, ensures clean and sterile air, and improves the smoothness of the filling process and the hygienic quality of the product.
Smart Images

Figure CN223591189U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to milk filling technical field, concretely is a kind of milk flexible tetra pak filling device. BACKGROUND
[0002] Milk flexible tetra pak filling device refers to a series of automatic equipment for filling milk and other liquid foods.
[0003] Chinese utility model patent CN206841752U discloses a tetra pak filling machine, including bottom plate, the upper end of the bottom plate is fixedly installed with conveying belt, the upper end of the conveying belt is fixedly installed with fixed groove, the upper end of the fixed groove is fixedly connected with inductor, the fixed groove is equipped with tetra pak, one side of fixed groove is fixedly welded with support, the upper end of the support is fixedly welded with stirring box, the lower end of the stirring box is fixedly welded with discharge pipe, the lower end of the discharge pipe is fixedly installed with inductive switch, the upper end of the inductive switch is fixedly welded with flow regulator, one side of the stirring box is fixedly installed with feed pipe, the other side of the stirring box opposite feed pipe is fixedly installed with liquid level detector, the stirring box is equipped with observation window on one side, the top center position of the stirring box is fixedly installed with motor, the lower end of motor output shaft is fixedly installed with transmission rod.
[0004] In traditional filling device, the adjustment of pressure inside and outside stirring box is often not accurate and timely, which can easily lead to pressure imbalance, and further affect filling effect and product quality. At the same time, the air filtering treatment entering the stirring box may not be sufficient enough, which cannot effectively remove impurities and microorganisms in the air, and increases the risk of product pollution. The existing sterilization technology may not be able to carry out comprehensive and deep sterilization treatment on the air entering the stirring box, which can still cause bacteria, viruses and other microorganisms in the air to threaten product quality. In addition, the dead angle or deficiency in the sterilization process can also reduce the overall sterilization effect, so a milk flexible tetra pak filling device is needed to solve the above problems. SUMMARY
[0005] The utility model provides a kind of milk flexible tetra pak filling device to solve the problems in background art.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of milk flexible tetra pack filling device, including stirring box and conveying frame, the left side of the stirring box is fixedly connected with feed pipe near top position, the top center of the stirring box is fixedly installed with motor, the output end of the motor is fixedly connected with stirring shaft, the outer surface of the stirring shaft is provided with stabilizing frame near top position, stirring vane is arranged on the stirring shaft, the bottom center of the stirring box is connected with discharge pipe, the top right side of the stirring box is fixedly installed with sterilization box near front end position, the inside left and right side walls of the sterilization box are distributed with guide vane in parallel, the top of multiple guide vanes is fixedly installed with ultraviolet sterilizer away from the one end of sterilization box inner wall, the bottom of the sterilization box is fixedly connected with outlet pipe, the top of the sterilization box is fixedly connected with special-shaped pipe, the inner bottom wall of the special-shaped pipe is provided with slide rod group, the outer surface of the slide rod group is movably sleeved with slide plate, the top of the slide plate is fixedly installed with sealing plug, the bottom of the slide plate is fixedly connected with spring, the bottom of the spring is fixedly connected with narrow plate, the top of the special-shaped pipe is threadedly connected with threaded cylinder, the top of the threaded cylinder is fixedly installed with first filter screen, the bottom center of the special-shaped pipe is fixedly connected with second filter screen, the inside of the special-shaped pipe is provided with filter cotton.
[0007] Further, the bottom of the discharge pipe penetrates the top of the mounting bracket and extends out of the inner top wall of the mounting bracket, and a flow control valve is arranged on the discharge pipe.
[0008] Further, the connection between the stabilizing frame and the stirring shaft is connected by a ball bearing, and the left and right sides of the stabilizing frame are fixedly connected with the left and right side walls inside the stirring box.
[0009] Further, the top of the stirring shaft penetrates the inner top wall of the stirring box and extends out of the top of the stirring box and is connected with the motor, a sealing ring is arranged at the connection between the stirring shaft and the stirring box, and the connection between the stirring shaft and the stirring box is connected by a ball bearing.
[0010] Further, the bottom of the outlet pipe penetrates the top of the stirring box and extends into the inside of the stirring box, and a one-way valve is arranged on the outlet pipe.
[0011] Further, the slide rod group is composed of four slide rods, the top and bottom of the four slide rods are fixedly connected with the four corners inside the special-shaped pipe, the left and right sides of the narrow plate are fixedly connected with the left and right side walls inside the special-shaped pipe, the narrow plate is located between the four slide rods and is not connected with the slide rods.
[0012] Further, the bottom of the special-shaped pipe is connected with the top of the sterilization box, and the sealing plug is movably sleeved with the inside of the special-shaped pipe near the center position.
[0013] Further, the bottom of the stirring box is fixedly provided with a mounting frame, the positions of the four supporting columns at the bottom of the mounting frame are fixedly connected with the positions close to the front and rear ends of the top of the conveying frame, the position close to the discharge pipe at the bottom of the mounting frame is fixedly provided with a camera, and the flexible Tetra Pak of milk is placed on the conveying frame during use.
[0014] Compared with the prior art, the milk flexible Tetra Pak filling device has the following beneficial effects:
[0015] 1. The milk flexible Tetra Pak filling device, by setting the special-shaped pipe, the sealing plug, the slide rod group, the mounting plate, the sliding plate and the spring, in the milk filling process, as the milk flows out of the stirring box, the pressure in the box will gradually decrease; at this time, the outside air can smoothly enter the stirring box through the special-shaped pipe, effectively balancing the pressure difference between the inside and outside, preventing various problems caused by pressure imbalance, such as deformation of the stirring box and damage to the sealing performance; the setting of the special-shaped pipe not only ensures the circulation of air, but also effectively removes impurities and microorganisms in the air through multiple layers of filtration, ensuring the air quality entering the stirring box; when the filling process is completed, the stirring box no longer needs to be supplemented with air, and the sealing plug will automatically reset under the action of the spring, tightly blocking the air inlet end of the special-shaped pipe; this setting effectively prevents external air from entering the stirring box, thereby maintaining the cleanliness and sterility of the inside of the stirring box; the combination of the slide rod group and the sliding plate ensures the stability and accuracy of the sealing plug during movement, avoiding air leakage caused by poor sealing; not only can effectively adjust the pressure inside and outside the stirring box, but also can effectively prevent external air from entering the stirring box when not in use, thereby ensuring the sanitary quality of the milk and the smooth progress of the filling process.
[0016] 2. The milk flexible Tetra Pak filling device, by setting the flow guide plate, the ultraviolet sterilizer and the sterilization box, the air entering the stirring box can flow slowly along the complex and zigzag S-shaped channel; this unique channel setting greatly increases the travel and residence time of the air inside the sterilization box, providing sufficient time guarantee for the subsequent sterilization process; as the core component of the sterilization box, the ultraviolet sterilizer can emit strong ultraviolet light, which can sterilize the air in the channel in all directions; the ultraviolet light can penetrate deep into the air, effectively destroying the DNA structure of bacteria, viruses and other microorganisms, thereby completely removing these potential sources of pollution; through the joint action of the sterilization box and the flow guide plate, the air entering the stirring box not only undergoes pretreatment by multiple layers of filtering devices, but also receives deep sterilization treatment by the ultraviolet sterilizer, ensuring that the air quality reaches the highest standard. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of the utility model;
[0018] Figure 2 is a sectional view of the inside structure of the stirring box of the utility model;
[0019] Figure 3 is a sectional view of the inside structure of the stirring box of the utility model; Figure 2 is an enlarged view of A derived from the utility model.
[0020] In the figure: 1, stirring box; 2, feed pipe; 3, motor; 4, threaded cylinder; 5, special-shaped pipe; 6, conveying frame; 7, mounting frame; 8, discharge pipe; 9, stirring blade; 10, stirring shaft; 11, stabilizing frame; 12, second filter screen; 13, first filter screen; 14, filter cotton; 15, sealing plug; 16, spring; 17, sliding rod set; 18, air outlet pipe; 19, narrow plate; 20, sliding plate; 21, sterilization box; 22, ultraviolet sterilizer; 23, flow guide plate; 24, camera device. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1-3 The utility model discloses a kind of milk flexible tetra pack filling devices, including stirring box 1 and conveying frame 6, the left side of stirring box 1 is fixedly connected with feed pipe 2 in the position close to top, the top center of stirring box 1 is fixedly installed with motor 3, the output end of motor 3 is fixedly connected with stirring shaft 10, the outer surface of stirring shaft 10 is close to the position of top and is provided with stabilizing frame 11, stirring blade 9 is provided on stirring shaft 10, the bottom center of stirring box 1 is connected with discharge pipe 8, the top right side of stirring box 1 is fixedly installed with sterilization box 21 in the position close to front end, flow guide plate 23 is distributed in the inside left and right two side walls of sterilization box 21, ultraviolet sterilizer 22 is fixedly installed in the top of multiple flow guide plates 23 and away from the one end of inner wall of sterilization box 21, the bottom of sterilization box 21 is fixedly connected with air outlet pipe 18, the top of sterilization box 21 is fixedly connected with special-shaped pipe 5, sliding rod set 17 is arranged on the inner bottom wall of special-shaped pipe 5, sliding plate 20 is movably sleeved on the outer surface of sliding rod set 17, sealing plug 15 is fixedly installed on the top of sliding plate 20, spring 16 is fixedly connected on the bottom of sliding plate 20, the bottom of spring 16 is fixedly connected with narrow plate 19, threaded cylinder 4 is threadedly connected on the top of special-shaped pipe 5, first filter screen 13 board is fixedly installed on the top of threaded cylinder 4, second filter screen 12 board is fixedly connected on the bottom center of special-shaped pipe 5, filter cotton 14 is arranged in the inside of special-shaped pipe 5.
[0023] Specifically, the bottom of the discharge pipe 8 penetrates the top of the mounting frame 7 and extends out of the inner top wall of the mounting frame 7, and a flow control valve is arranged on the discharge pipe 8.
[0024] Specifically, the connection between the stabilizing frame 11 and the stirring shaft 10 is connected through a ball bearing, and the left and right sides of the stabilizing frame 11 are fixedly connected with the left and right side walls inside the stirring box 1.
[0025] Specifically, the top of the stirring shaft 10 penetrates the inner top wall of the stirring box 1 and extends out of the top of the stirring box 1 and is connected with the motor 3, a sealing ring is arranged at the connection between the stirring shaft 10 and the stirring box 1, and the connection between the stirring shaft 10 and the stirring box 1 is connected through a ball bearing.
[0026] Specifically, the bottom of the gas outlet pipe 18 penetrates the top of the stirring box 1 and extends into the inside of the stirring box 1, and a one-way valve is arranged on the gas outlet pipe 18.
[0027] Specifically, the slide rod group 17 is composed of four slide rods, the top and bottom of the four slide rods are fixedly connected with the four corners inside the special-shaped pipe 5, the left and right sides of the narrow plate 19 are fixedly connected with the left and right side walls inside the special-shaped pipe 5, the narrow plate 19 is located between the four slide rods and is not connected with the slide rods.
[0028] Specifically, the bottom of the special-shaped pipe 5 is connected with the top of the sterilization box 21, and the sealing plug 15 is movably sleeved with the inside of the special-shaped pipe 5 near the center position.
[0029] Specifically, the bottom of the stirring box 1 is fixedly installed with the mounting frame 7, the positions of the four supporting columns at the bottom of the mounting frame 7 are fixedly connected with the positions near the front and rear ends of the top of the conveying frame 6, the position near the discharge pipe 8 at the bottom of the mounting frame 7 is fixedly installed with a camera 24, and when in use, a flexible Lekker of milk is placed on the conveying frame 6.
[0030] Before use, make sure that the ultraviolet sterilizer 22 has been turned on to preheat and achieve the best sterilization effect; as the core component of the entire sterilization process, the effective operation of the ultraviolet sterilizer 22 is crucial to ensure the sanitary quality of the milk; when officially put into use, fresh milk first flows slowly into the stirring tank 1 through the feed pipe 2; at this time, start the motor 3, which drives the stirring shaft 10 to rotate through the transmission device; with the rotation of the stirring shaft 10, the blades also rotate at high speed, fully and uniformly stirring the milk; this step not only helps to fully mix the various components in the milk, but also improves the taste and quality of the milk; when the milk needs to be filled, the operator needs to place the empty Tetra Pak box neatly on the conveying rack 6; as the conveyor belt moves slowly, the Tetra Pak box will gradually approach the position directly below the discharge pipe 8; at this time, the camera device 24 will capture the position information of the Tetra Pak box in real time, and automatically open the flow control valve on the discharge pipe 8 when it moves directly below the discharge pipe 8; under the precise control of the valve, the milk will be filled into the Tetra Pak box at a stable speed and flow, ensuring that the amount of milk in each Tetra Pak box meets the specified standard; however, during the filling process, due to the sealing arrangement of the stirring tank 1, external air cannot directly flow into the stirring tank 1; as the milk continues to be filled out, the pressure inside the stirring tank 1 will gradually decrease, forming a pressure difference with the outside; in order to balance this pressure difference, air needs to enter the stirring tank 1 through a specific channel; at this time, the external air first passes through the first filter screen 13 for preliminary filtration to remove larger impurities and particulate matter; then, the air flows into the threaded cylinder 4, where the filter cotton 14 is arranged to further filter out finer dust and microorganisms; after two filtration processes, the air has become relatively clean; as the gas continues to flow in, the sealing plug 15 and its connected sliding plate 20 will gradually move down under the push of the gas; in this process, the spring 16 will be gradually compressed, storing energy for subsequent reset action; this arrangement not only ensures that the air entering the special-shaped pipe 5 is strictly filtered, but also automatically adjusts the sealing state when the gas pressure changes, maintaining the sealing of the stirring tank 1; the filtered air enters the sterilization tank 21 and flows slowly along the S-shaped channel formed by the sterilization tank 21 body and multiple guide plates 23; this unique channel arrangement not only increases the travel distance of the air inside the sterilization tank 21, but also prolongs the residence time of the air in the tank, providing sufficient time guarantee for the subsequent filtration and sterilization process; during the air flow, the ultraviolet sterilizer 22 emits strong ultraviolet light to sterilize the air in the channel; after being treated by the ultraviolet sterilizer 22, the bacteria, viruses and other microorganisms in the air are effectively killed, ensuring the sanitary quality of the air entering the stirring tank 1; finally, the sterilized air flows smoothly into the stirring tank 1 through the connecting pipe of the sterilization tank 21 to balance the pressure difference between the inside and outside; when the milk filling is completed, the pushing force on the sealing plug 15 will also disappear;At this time, the spring 16 will release its accumulated energy, push the slide plate 20 and the sealing plug 15 back to normal, tightly block the air inlet end of the special-shaped tube 5 again, and ensure the sealing of the mixing box 1; in addition, in order to keep the one-way exhaust pipe unobstructed and the filtering effect, after a long period of use, the operator can conveniently twist the filter cover and remove it from the one-way exhaust pipe; then, the filter cotton 14 inside the filter cover is cleaned or replaced to ensure that it always maintains good filtering performance; this setting not only improves the maintenance convenience of the equipment, but also helps to prolong the service life of the equipment and ensure the sanitary quality of the milk.
[0031] In summary, the milk flexible Tetra Pak filling device, by setting the special-shaped tube 5, the sealing plug 15, the slide rod group 17, the mounting plate, the slide plate 20 and the spring 16, during the milk filling process, as the milk flows out of the mixing box 1, the pressure inside the box will gradually decrease; at this time, the outside air can smoothly enter the mixing box 1 through the special-shaped tube 5, effectively balancing the pressure difference between inside and outside, preventing various problems caused by pressure imbalance, such as deformation of the mixing box 1 and damage to the sealing; the setting of the special-shaped tube 5 not only ensures the circulation of air, but also effectively removes impurities and microorganisms in the air through multiple layers of filtration, ensuring the air quality entering the mixing box 1; when the filling process is completed and the mixing box 1 no longer needs to be supplemented with air, the sealing plug 15 will automatically reset under the action of the spring 16, tightly blocking the air inlet end of the special-shaped tube 5; this setting effectively prevents external air from entering the mixing box 1, thereby maintaining the cleanliness and sterility of the inside of the mixing box 1; the combination of the slide rod group 17 and the slide plate 20 ensures the stability and accuracy of the sealing plug 15 during movement, avoiding air leakage caused by poor sealing; not only can effectively adjust the pressure inside and outside the mixing box 1, but also can effectively prevent external air from entering the mixing box 1 when not in use, thereby ensuring the sanitary quality of the milk and the smooth progress of the filling process; by setting the deflector 23, the ultraviolet sterilizer 22 and the sterilization box 21, the air entering the mixing box 1 can flow slowly along the complex and winding S-shaped channel; this unique channel setting greatly increases the travel and residence time of the air inside the sterilization box 21, providing sufficient time guarantee for the subsequent sterilization process; as the core component of the sterilization box 21, the ultraviolet sterilizer 22 can emit strong ultraviolet light to sterilize the air in the channel; the ultraviolet light can penetrate deep into the air, effectively destroying the DNA structure of bacteria, viruses and other microorganisms, thereby completely removing these potential sources of pollution; through the joint action of the sterilization box 21 and the deflector 23, the air entering the mixing box 1 not only undergoes pretreatment by multiple layers of filtering device, but also receives deep sterilization treatment by the ultraviolet sterilizer 22, ensuring that the air quality reaches the highest standard.
[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A milk flexible Tetra Brik®-packaging installation comprising a mixing tank (1) and a conveying frame (6), characterized in that: The left side of the stirring box (1) is fixedly connected with an inlet pipe (2) near the top, a motor (3) is fixedly installed at the top center of the stirring box (1), the output end of the motor (3) is fixedly connected with a stirring shaft (10), a stabilizing frame (11) is arranged on the outer surface of the stirring shaft (10) near the top, stirring blades (9) are arranged on the stirring shaft (10), a discharge pipe (8) is connected at the bottom center of the stirring box (1), a sterilization box (21) is fixedly installed at the top right side of the stirring box (1) near the front end, flow guides (23) are arranged on the left and right side walls in the sterilization box (21), ultraviolet sterilizers (22) are fixedly installed at the top of the flow guides (23) away from the inner wall of the sterilization box (21), an air outlet pipe (18) is fixedly connected to the bottom of the sterilization box (21), a special-shaped pipe (5) is fixedly connected to the top of the sterilization box (21), a sliding rod set (17) is arranged on the inner bottom wall of the special-shaped pipe (5), a sliding plate (20) is movably sleeved on the outer surface of the sliding rod set (17), a sealing plug (15) is fixedly installed at the top of the sliding plate (20), a spring (16) is fixedly connected to the bottom of the sliding plate (20), a narrow plate (19) is fixedly connected to the bottom of the spring (16), a threaded cylinder (4) is threadedly connected to the top of the special-shaped pipe (5), a first filter screen (13) is fixedly installed at the top of the threaded cylinder (4), a second filter screen (12) is fixedly connected at the bottom center of the special-shaped pipe (5), and filter cotton (14) is arranged in the special-shaped pipe (5).
2. A milk flexible Tetra Brik packaging device according to claim 1, characterized in that: The bottom of the discharge pipe (8) penetrates the top of the mounting frame (7) and extends out of the inner top wall of the mounting frame (7), and a flow control valve is arranged on the discharge pipe (8).
3. A milk flexible Tetra Brik packaging device according to claim 1, characterized in that: The connection between the stabilizing frame (11) and the stirring shaft (10) is connected through a ball bearing, and the left and right sides of the stabilizing frame (11) are fixedly connected with the left and right side walls in the stirring box (1).
4. A milk flexible Tetra Brik packaging apparatus according to claim 1 characterized in that: The top of the stirring shaft (10) penetrates the inner top wall of the stirring box (1) and extends out of the top of the stirring box (1) and is connected with the motor (3), a sealing ring is arranged at the connection between the stirring shaft (10) and the stirring box (1), and the connection between the stirring shaft (10) and the stirring box (1) is connected through a ball bearing.
5. A milk flexible Tetra Brik packaging apparatus according to claim 1 characterized in that: The bottom of the air outlet pipe (18) penetrates the top of the stirring box (1) and extends into the stirring box (1), and a one-way valve is arranged on the air outlet pipe (18).
6. A milk flexible Tetra Brik packaging apparatus according to claim 1 characterized in that: The sliding rod set (17) is composed of four sliding rods, the top and bottom of the four sliding rods are fixedly connected with the four corners in the special-shaped pipe (5), the left and right sides of the narrow plate (19) are fixedly connected with the left and right side walls in the special-shaped pipe (5), the narrow plate (19) is located between the four sliding rods and is not connected with the sliding rods.
7. A milk flexible Tetra Brik packaging apparatus according to claim 1 characterized in that: The bottom of the special-shaped pipe (5) is connected with the top of the sterilization box (21), and the sealing plug (15) is movably sleeved on the inner part of the special-shaped pipe (5) near the center.
8. A milk flexible Tetra Brik packaging apparatus according to claim 1 characterized in that: The bottom of the stirring box (1) is fixedly provided with a mounting frame (7), the positions of the four supporting columns of the bottom of the mounting frame (7) are fixedly connected with the positions close to the front and rear ends of the top of the conveying frame (6), and the position close to the discharging pipe (8) of the bottom of the mounting frame (7) is fixedly provided with a camera (24); in use, the flexible Lactalis milk bag is placed on the conveying frame (6).
Citation Information
Patent Citations
Tetra pak packaging wraps liquid filling machine
CN206841752U