Secondary sterilization system for bottled milk

Abstract

The invention provides a bottled milk secondary sterilization system which comprises a conveying mechanism, a batch transfer trolley, a mechanical arm and a secondary sterilization kettle, the mechanical arm is arranged on one side of the conveying mechanism, and the batch transfer trolley is arranged between the mechanical arm and the secondary sterilization kettle and can move in the secondary sterilization kettle and between operation areas of the mechanical arm. A plurality of sterilization transfer cages are stacked on the batch transfer trolley, the sterilization transfer cages are sequentially carried on the conveying mechanism by the manipulator, and after the transferred bottled milk is pushed into the sterilization transfer cages by the conveying mechanism, the sterilization transfer cages are carried to the batch transfer trolley by the manipulator. And the bottled milk is transferred into the secondary sterilization kettle through the batch transfer trolley for secondary sterilization, and the sterilized transfer cage loaded with the bottled milk after secondary sterilization is carried on the conveying mechanism by the manipulator for transfer. The sterilization efficiency is improved, a large amount of heavy manual work is removed, the production efficiency is improved, and the phenomenon of secondary pollution caused by manual contact with bottled milk is also avoided.

Description

Technical Field

[0001] The invention relates to the technical field of secondary sterilization of bottled milk, and in particular to a secondary sterilization system for bottled milk. Background Art

[0002] Secondary sterilization of bottled milk is an important food processing technology that aims to ensure the safety of bottled milk and extend its shelf life. Secondary sterilization can not only eliminate microorganisms that may remain after the initial sterilization, but also prevent secondary contamination caused by microorganisms on the packaging material when the package is unpacked.

[0003] At present, in the existing technology, the secondary sterilization equipment commonly used by dairy product processing enterprises is a horizontal sterilizer. When performing the secondary sterilization operation, the degree of automation is low, and manual assistance is required to move the bottled milk from the conveyor line to the transfer cart, and the transfer cart is manually pushed into the horizontal sterilizer for sterilization. After the sterilization is completed, it is manually transported to the conveyor line. Due to the large workload and heavy and labor-intensive manual loading and unloading of bottled milk, not only is the production efficiency low, but the outer packaging of the bottled milk is also easily contaminated again during manual handling. Summary of the invention

[0004] In view of this, it is necessary to provide a secondary sterilization system for bottled milk to solve the technical problems in the prior art of secondary sterilization of bottled milk, such as labor-intensive manual handling, low production efficiency and easy secondary contamination.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A secondary sterilization system for bottled milk comprises a conveying mechanism for conveying bottled milk after primary sterilization, a batch transfer trolley, a manipulator and a secondary sterilization kettle, wherein the manipulator is arranged on one side of the conveying mechanism, the batch transfer trolley is arranged between the manipulator and the secondary sterilization kettle, and can move between the secondary sterilization kettle and the operation area of ​​the manipulator, a plurality of sterilization transfer cages for carrying bottled milk are stacked on the batch transfer trolley, the manipulator transports the sterilization transfer cages on the conveying mechanism in sequence, and the conveying mechanism transfers the sterilization transfer cages to the conveying mechanism. After the transferred bottled milk is pushed into the sterilization transfer cage, the robot then moves the sterilization transfer cage containing the bottled milk from the conveying mechanism to the batch transfer trolley, and the batch transfer trolley transfers the sterilization transfer cage containing the bottled milk to the secondary sterilization kettle for secondary sterilization, and then transfers the sterilization transfer cage containing the bottled milk to the working area of ​​the robot, and the robot moves the sterilization transfer cage containing the bottled milk after the secondary sterilization onto the conveying mechanism in turn, and the bottled milk after the secondary sterilization is transported again by the conveying mechanism.

[0006] Preferably, the conveying mechanism includes a first conveyor belt, a second conveyor belt, a milk bottle pushing device, a milk bottle stopping device and a carrying platform for carrying a sterilization transfer cage, the carrying platforms are arranged in parallel, the first conveyor belt and the second conveyor belt are respectively arranged in parallel at both ends of the carrying platform, and the output end of the first conveyor belt and the input end of the second conveyor belt are opposite to each other, the conveying directions of the first conveyor belt and the second conveyor belt are consistent, the sterilization transfer cage is placed in parallel at the upper end of the carrying platform, and the loading surface of the sterilization transfer cage is flush with or lower than the conveying surface of the first conveyor belt. The conveying surface of the first conveyor belt is aligned with the conveying surface of the second conveyor belt, and the loading surface of the sterilization transfer cage is flush with or higher than the conveying surface of the second conveyor belt. The milk bottle stopping device is set up just above one end of the load platform close to the second conveyor belt to stop and limit the bottled milk to be sterilized for the second time entering the sterilization transfer cage. The milk bottle pushing device is set up just above the conveying surface of the first conveyor belt and close to the output end of the first conveyor belt, and can move parallel to the input end of the second conveyor belt to push the bottled milk after the second sterilization to the second conveyor belt.

[0007] Preferably, the bottle stopping device comprises a first gantry bracket, a stop plate and a first lifting drive, the first gantry bracket is horizontally mounted across and directly above one end of the load-bearing platform close to the second conveyor belt, the stop plate has a vertical cross bar at the lower end of the first gantry bracket, the first lifting drive is longitudinally mounted on the first gantry bracket, the telescopic arm of the first lifting drive is connected to the stop plate, and drives the stop plate to perform lifting and lowering movements, after the stop plate descends, it can stop and limit the bottled milk to be sterilized for a second time entering the sterilization transfer cage, and after the stop plate rises, it can allow the bottled milk to pass from underneath it.

[0008] Preferably, the bottle pushing device includes a second gantry bracket, a pushing plate, a second lifting drive, a support seat, a driving screw and a driving motor. There are two support seats, which are symmetrically arranged on both sides of the bearing platform. There are two driving screws, which are rotatably arranged on the two support seats. The two ends of the two driving screws are respectively extended toward the output end of the first conveyor belt and the input end of the second conveyor belt, and the two driving screws are parallel to each other. The second gantry bracket is spanned and erected directly above the conveying surface of the first conveyor belt, and the lower end of the second gantry bracket is respectively threadedly connected with the two driving screws. There are two driving motors, which are respectively arranged at one end of the two driving screws, and can respectively drive the two driving screws synchronously and in the same direction. The second conveyor belt is driven by the second gantry bracket to rotate to drive the second gantry bracket to reciprocate toward the input end direction of the second conveyor belt, the push plate vertically crossbar is at the lower end of the second gantry bracket, the second lifting drive is longitudinally installed on the second gantry bracket, the telescopic arm of the second lifting drive is connected with the push plate, and drives the push plate to perform lifting movement, after the push plate rises, the bottled milk conveyed on the conveying surface of the first conveyor belt can pass from below it into the sterilization transfer cage placed on the bearing platform, after the push plate descends, the bottled milk conveyed on the conveying surface of the first conveyor belt can be stopped, and when the second gantry bracket moves toward the input end direction of the second conveyor belt, it can drive the push plate to push the bottled milk in the sterilization transfer cage placed on the bearing platform into the second conveyor belt.

[0009] Preferably, the conveying mechanism also includes limit stop rods, which are divided into two groups and are arranged in parallel on both sides of the supporting platform. The limit stop rods are extended along the supporting platform toward the conveying direction of the first conveyor belt and the second conveyor belt, and are higher than the supporting platform to enclose the bottled milk entering the sterilization transfer cage.

[0010] Preferably, the sterilization transfer cage comprises a rectangular fence that passes through the top and bottom and matches the carrying platform, and a movable bottom plate for carrying bottled milk, the four corners of the rectangular fence are vertically provided with support columns, and each support column is vertically provided with a slide groove on the side wall facing the diagonal of the rectangular fence, the lower end of the slide groove is close to the bottom of the rectangular fence, and the upper end of the slide groove is flush with the top of the rectangular fence, the movable bottom plate is arranged in parallel in the rectangular fence, and the four corners of the movable bottom plate are respectively provided with sliders that match the slide grooves on the four support columns, and the sliders at the four corners of the movable bottom plate are respectively inserted into the slide grooves on the four support columns, and can slide freely up and down along the slide grooves, and the surrounding of the carrying platform is provided with receiving grooves for inserting the rectangular fence, after the manipulator carries the sterilization transfer cage onto the carrying platform, the carrying platform is against the lower end of the movable bottom plate, the rectangular fence can freely fall into the receiving grooves around the carrying platform for hiding, and the carrying platform is inserted into the rectangular fence, and the movable bottom plate is pressed against the top of the rectangular fence, so that there is no barrier between the loading surface of the movable bottom plate and the conveying surface of the first conveyor belt.

[0011] Preferably, the lower edges of the four side walls of the rectangular fence are bent inward to form a support platform for supporting the movable bottom plate. After the movable bottom plate slides freely along the slide groove to the bottom of the rectangular fence, the four side edges of the movable bottom plate are placed on the support platform.

[0012] Preferably, the bottom of the movable bottom plate is cross-arranged with reinforcing ribs along its diagonal direction.

[0013] Preferably, the lower end of each support column is protruding toward the bottom of the rectangular fence, and the upper end of each support column is threadedly connected with a T-shaped positioning column for grasping by a robot, and the top of the T-shaped positioning column is provided with a positioning groove that matches the lower end of the support column.

[0014] Preferably, the batch transfer carts are in two groups, and the secondary sterilization kettle is arranged corresponding to the batch transfer carts.

[0015] It can be seen from the above technical scheme that the bottled milk secondary sterilization system provided by the present application includes a conveying mechanism, a batch transfer trolley, a manipulator and a secondary sterilization kettle. The manipulator is arranged on one side of the conveying mechanism, and the batch transfer trolley is arranged between the manipulator and the secondary sterilization kettle, and can move between the secondary sterilization kettle and the working area of ​​the manipulator. A plurality of sterilization transfer cages for loading bottled milk are stacked on the batch transfer trolley. The manipulator transports the sterilization transfer cages on the conveying mechanism in sequence. After the conveying mechanism pushes the transported bottled milk into the sterilization transfer cages, the manipulator transports the sterilization transfer cages carrying the bottled milk from the conveying mechanism to the batch transfer trolley. After the sterilization transfer cages carrying the bottled milk are transported to the secondary sterilization kettle by the batch transfer trolley for secondary sterilization, the sterilization transfer cages carrying the bottled milk are transported to the working area of ​​the manipulator. The sterilization transfer cages carrying the bottled milk after the secondary sterilization are transported on the conveying mechanism in sequence by the manipulator, and the bottled milk after the secondary sterilization is transported again by the conveying mechanism. The bottled milk secondary sterilization system uses a robot to transport the sterilization transfer cages containing the secondary sterilized bottled milk to the conveying mechanism in sequence, and replaces the secondary sterilized bottled milk loaded in the sterilization transfer cages with the primary sterilized bottled milk through the conveying mechanism. The milk is then transferred to the secondary sterilization kettle by a batch transfer cart for secondary sterilization, and this reciprocating cycle is repeated to achieve a continuous secondary sterilization production process, thereby improving the sterilization efficiency. There is no need for manual loading and unloading, which saves labor, eliminates a lot of heavy manual work, realizes full automation, greatly improves production efficiency, and avoids the phenomenon of secondary contamination caused by contact between humans and bottled milk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the invention.

[0017] Figure 2It is a schematic diagram of the three-dimensional structure of the transmission mechanism.

[0018] Figure 3 It is a schematic diagram of the top view of the transmission mechanism.

[0019] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the middle edge AA.

[0020] Figure 5 It is a schematic diagram of the structure of the sterilization transport cage.

[0021] Figure 6 It is a schematic diagram of the bottom structure of the sterilization transport cage.

[0022] Figure 7 It is a schematic diagram of the split structure of the sterilization transport cage.

[0023] Figure 8 It is a schematic diagram of the movable bottom plate of the sterilization transfer cage in the raised state.

[0024] Fig. 9 This is a schematic diagram of the sterilization transport cage in use when placed on a conveying mechanism.

[0025] Fig.10 It is a schematic diagram of the state where the sterilization transfer cage is placed on the batch transfer trolley.

[0026] In the figure: a conveying mechanism 10, a batch transfer trolley 20, a manipulator 30, a secondary sterilization kettle 40, a sterilization transfer cage 50, a first conveyor belt 101, a second conveyor belt 102, a carrying platform 103, a milk bottle pushing device 104, a second gantry bracket 1041, a pushing plate 1042, a second lifting drive 1043, a support seat 1044, a driving screw 1045, a driving motor 1046, a milk bottle stopping device 105, a first gantry bracket 1051, a stop plate 1052, a first lifting drive 1053, a limit stop rod 106, a receiving groove 107, a rectangular fence 501, a movable bottom plate 502, a support column 503, a slide groove 504, a slider 505, a support platform 506, a reinforcing rib 507, a T-shaped positioning column 508, and a positioning groove 509. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Please see Figure 1The embodiment of the present invention provides a secondary sterilization system for bottled milk, comprising a conveying mechanism 10 for conveying bottled milk after the first sterilization, a batch transfer trolley 20, a manipulator 30 and a secondary sterilization kettle 40, wherein the manipulator 30 is arranged on one side of the conveying mechanism 10, the secondary sterilization kettle 40 is arranged outside the manipulator 30, the batch transfer trolley 20 is arranged between the manipulator 30 and the secondary sterilization kettle 40, and can move within the secondary sterilization kettle 40 and between the working areas of the manipulator 30, and the secondary sterilization kettle 40 is a horizontal sterilization kettle, which is a cylinder that uses compressed air as pressure. The manipulator 30 is an articulated manipulator, which is a common industrial robot. Its structure is similar to that of a human arm and can move in the X and Y planes. A plurality of sterilization transfer cages 50 for loading bottled milk are stacked on the batch transfer cart 20. During the secondary sterilization operation of the bottled milk, the manipulator 30 sequentially transports the empty sterilization transfer cages 50 stacked on the batch transfer cart 20 onto the conveying mechanism 10. The conveying mechanism 10 transports the bottled milk after the first sterilization to the sterilization transfer cages 50 and pushes the transported bottled milk to the conveying mechanism 10. After the sterilization transfer cage 50 is put into the sterilization transfer cage 50, the manipulator 30 then moves the sterilization transfer cage 50 carrying the bottled milk from the conveying mechanism 10 to the batch transfer trolley 20. The manipulator 30 reciprocates to move the sterilization transfer cage 50 so that all the empty sterilization transfer cages 50 on the batch transfer trolley 20 are filled with bottled milk. Then, the batch transfer trolley 20 transfers the sterilization transfer cage 50 carrying the bottled milk to the secondary sterilization kettle 40 for secondary sterilization. After the secondary sterilization, the batch transfer trolley 20 transfers the sterilization transfer cage 50 carrying the bottled milk after the secondary sterilization to the manipulator 30. In the operation area, the sterilization transfer cage 50 carrying bottled milk after secondary sterilization is sequentially carried on the conveying mechanism 10 by the manipulator 30, and the bottled milk after secondary sterilization in the sterilization transfer cage 50 is pushed out of the sterilization transfer cage 50 by the conveying mechanism 10, and the bottled milk after secondary sterilization is secondary transferred. At the same time, the conveying mechanism 10 continues to push the bottled milk after the first sterilization into the sterilization transfer cage 50, and the sterilization transfer cage 50 carrying the bottled milk is continuously carried from the conveying mechanism 10 by the manipulator 30 and stacked on the batch transfer trolley 20. In this way, after the bottled milk after secondary sterilization is transferred to the conveying mechanism 10 by the sterilization transfer cage 50, the bottled milk to be secondary sterilized is transferred from the conveying mechanism 10 to the batch transfer trolley 20 by the sterilization transfer cage 50, so that the sterilization transfer cage 50 is continuously transferred without empty load, thereby improving the transfer efficiency. The batch transfer trolley 20 is provided with running wheels, a driving motor and a battery. The driving motor is connected to the running wheels for power, and the battery is used to power the driving motor to drive the batch transfer trolley 20 to move within the secondary sterilization kettle 40 and between the working areas of the manipulator 30.The sterilization transfer cage 50 containing the bottled milk after secondary sterilization is transported to the conveying mechanism 10 in sequence by the manipulator 30. The bottled milk after secondary sterilization loaded in the sterilization transfer cage 50 is replaced with the bottled milk to be secondary sterilized by the conveying mechanism 10, and then transferred to the secondary sterilization kettle 40 by the batch transfer cart 20 for secondary sterilization. This reciprocating cycle is carried out, so that the sterilization transfer cage 50 can be continuously transported without empty loading, thereby improving the sterilization efficiency, and no manual loading and unloading is required, which saves labor and avoids the phenomenon of secondary contamination caused by contact between humans and bottled milk.

[0029] Please see Figure 2 and Figure 3 Specifically, the conveying mechanism 10 includes a first conveyor belt 101, a second conveyor belt 102, a milk bottle pushing device 104, a milk bottle stopping device 105 and a carrying platform 103 for carrying the sterilization transfer cage 50. The carrying platform 103 is a rectangular platform, which is arranged in parallel. The first conveyor belt 101 and the second conveyor belt 102 are respectively arranged in parallel at both ends of the carrying platform 103, and the output end of the first conveyor belt 101 and the input end of the second conveyor belt 102 are opposite to each other. The first conveyor belt 101 and the second conveyor belt 102 are both belt conveyors. The conveyor 102 is a conveyor belt 104, and the conveying direction is consistent. The first conveyor belt 101 is used to convey the bottled milk to be sterilized twice to the sterilization transfer cage 50 on the carrier 103. The second conveyor belt 102 is used to carry the bottled milk to be sterilized twice in the sterilization transfer cage 50 on the receiving platform 103 through the manipulator 30 and transfer it outward. The milk bottle stopping device 105 is set up just above one end of the carrier 103 close to the second conveyor belt 102, and is used to stop the milk to be sterilized twice in the sterilization transfer cage 50 transferred by the first conveyor belt 101. The bottled milk is stopped and limited, so that the bottled milk to be sterilized for the second time is kept in the sterilization transfer cage 50. The milk bottle pushing device 104 is set up just above the conveying surface of the first conveyor belt 101 and close to the output end of the first conveyor belt 101. It can move parallel to the input end of the second conveyor belt 102, and is used to push the bottled milk after the second sterilization from the sterilization transfer cage 50 to the second conveyor belt 102. At the same time, it is also used to push the bottled milk transported on the first conveyor belt 101 into the sterilization transfer cage 50. The robot 30 pushes the sterilization transfer cage 50. After the cage 50 is transported to the upper end of the loading platform 103, the loading surface of the sterilization transfer cage 50 should be flush with or lower than the conveying surface of the first conveyor belt 101, and the loading surface of the sterilization transfer cage 50 should be flush with or higher than the conveying surface of the second conveyor belt 102. In this way, the bottled milk transported on the first conveyor belt 101 can smoothly enter the sterilization transfer cage 50, and it can also ensure that the bottled milk in the sterilization transfer cage 50 can smoothly enter the second conveyor belt 102.

[0030] Please continue to see Figure 2 The milk bottle stopping device 105 includes a first gantry bracket 1051, a stop plate 1052 and a first lifting drive 1053. The first gantry bracket 1051 is horizontally erected above the end of the carrier 103 close to the second conveyor belt 102. The stop plate 1052 is vertically horizontal at the lower end of the first gantry bracket 1051. The first lifting drive 1053 is longitudinally installed on the first gantry bracket 1051. The first lifting drive 1053 is an electric push rod or a telescopic cylinder. The telescopic arm of the first lifting drive 1053 is connected to the stop plate 1052, and drives the stop plate 1052 to move up and down at the lower end of the first gantry bracket 1051. , which is used to stop and limit the bottled milk to be sterilized twice that is transmitted from the first conveyor belt 101 to the sterilization transfer cage 50. When the first conveyor belt 101 conveys the bottled milk to be sterilized twice to the sterilization transfer cage 50, the first lifting drive 1053 lowers the stop plate 1052 to make it close to the edge of the sterilization transfer cage 50, forming a barrier between the sterilization transfer cage 50 and the second conveyor belt 102, thereby limiting the bottled milk to be sterilized twice in the sterilization transfer cage 50. After the first lifting drive 1053 raises the stop plate 1052, the bottled milk after the secondary sterilization can pass under the stop plate 1052 and enter the second conveyor belt 102.

[0031] Please continue to see Figure 2The bottle pushing device 104 includes a second gantry support 1041, a pushing plate 1042, a second lifting drive 1043, a support seat 1044, a driving screw 1045 and a driving motor 1046. There are two support seats 1044, which are symmetrically arranged on both sides of the carrier 103. There are two driving screws 1045, which are rotatably arranged on the two support seats 1044. The two ends of the two driving screws 1045 are respectively extended toward the output end of the first conveyor belt 101 and the input end of the second conveyor belt 102, and the two driving screws 1045 are parallel to each other. The second gantry support 1041 is erected across and directly above the conveying surface of the first conveyor belt 101, and the lower ends of the second gantry support 1041 are respectively connected to the conveyor belt 101. The two driving screws 1045 are threadedly connected, the vertical cross bar of the push plate 1042 is at the lower end of the second gantry bracket 1041, the second lifting drive 1043 is longitudinally installed on the second gantry bracket 1041, the first lifting drive 1053 is an electric push rod or a telescopic cylinder, the telescopic arm of the second lifting drive 1043 is connected to the push plate 1042, and drives the push plate 1042 to perform lifting movement, the driving motor 1046 is two, which are respectively arranged at one end of the two driving screws 1045, and can respectively drive the two driving screws 1045 to rotate synchronously and in the same direction, so as to drive the second gantry bracket 1041 to reciprocate toward the input end of the second conveyor belt 102, and drive the push plate through the second gantry bracket 1041 The first conveyor belt 101 is used to assist the first conveyor belt 101 in conveying the bottled milk to be sterilized twice to the sterilization transfer cage 50, and push the bottled milk after the secondary sterilization from the sterilization transfer cage 50 to the second conveyor belt 102. When the first conveyor belt 101 is conveying the bottled milk to be sterilized twice to the sterilization transfer cage 50, the push plate 1042 is in an ascending state, and the second gantry support 1041 is located above the first conveyor belt 101. When the first conveyor belt 101 is conveying the bottled milk to be sterilized twice to the sterilization transfer cage 50, the first conveyor belt 101 is conveyed at intervals according to the loading capacity of each sterilization transfer cage 50. For example, if the loading capacity of a sterilization transfer cage 50 is 20 bottles of milk, the first conveyor belt 101 pushes the 20 bottles to be sterilized twice to the second conveyor belt 102. After the milk is transferred to the sterilization transfer cage 50, the transfer is suspended. At this time, the bottled milk to be sterilized for the second time will be accumulated at the output end of the first conveyor belt 101 without the action of external force, and cannot completely enter the sterilization transfer cage 50. When the first conveyor belt 101 stops conveying, the second lifting drive 1043 lowers the push plate 1042 to make it close to the conveying surface of the first conveyor belt 101. After the push plate 1042 is lowered, it is located at the side of the bottled milk to be sterilized for the second time that is accumulated at the output end of the first conveyor belt 101 away from the supporting platform 103. At the same time, the drive motor 1046 is started to drive the second gantry bracket 1041 to move toward the input end of the second conveyor belt 102. Driven by the second gantry bracket 1041, the push plate 1042The bottled milk to be sterilized for the second time that is accumulated at the output end of the first conveyor belt 101 is completely pushed into the sterilization transfer cage 50. When the pushing plate 1042 pushes the bottled milk to be sterilized for the second time, the stop plate 1052 is in a descending state. When the bottled milk in the sterilization transfer cage 50 is sterilized for the second time and is transported to the carrier 103 again by the manipulator 30, the stop plate 1052 is in an ascending state, and the pushing plate 1042 is in a descending state. At this time, the driving motor 1046 is started to drive the second gantry bracket 1041 to move toward the input end of the second conveyor belt 102 again. Driven by the second gantry bracket 1041, the pushing plate 1042 pushes the bottled milk in the sterilization transfer cage 50 placed on the carrier 103 that has been sterilized for the second time to the second conveyor belt 102, and the second conveyor belt 102 transports the milk outward.

[0032] Please continue to see Figure 2 and Figure 3 A set of limit stop rods 106 are respectively arranged in parallel on both sides of the carrying platform 103. The two sets of limit stop rods 106 are respectively extended along both sides of the carrying platform 103 toward the conveying direction of the first conveyor belt 101 and the second conveyor belt 102. The limit stop rods 106 are higher than the height of the carrying platform 103, the first conveyor belt 101, and the second conveyor belt 102, and lower than the height of the first conveyor belt 101, the second conveyor belt 102 and the bottled milk in the sterilization transfer cage 50 on the carrying platform 103. The two sets of limit stop rods 106 are used to enclose both sides of the carrying platform 103, the first conveyor belt 101, and the second conveyor belt 102 to form a channel for the bottled milk to pass through, so as to limit the bottled milk entering the first conveyor belt 101, the second conveyor belt 102 and the sterilization transfer cage 50 to prevent the bottled milk from escaping therefrom.

[0033] Please continue to see Figures 5 to 8The sterilization transport cage 50 includes a rectangular fence 501 that passes through from top to bottom and matches the carrying platform 103, and a movable bottom plate 502 for holding bottled milk. Support columns 503 are vertically arranged at the four corners of the rectangular fence 501. Each support column 503 has a vertically opened slide 504 on the side wall facing the diagonal direction of the rectangular fence 501. The lower end of the slide 504 is close to the bottom of the rectangular fence 501, and the upper end of the slide 504 is flush with the top of the rectangular fence 501. The movable bottom plate 502 is arranged in parallel in the rectangular fence 501, and the four corners of the movable bottom plate 502 are respectively provided with sliders that match the slides 504 on the four support columns 503 505, the sliders 505 at the four corners of the movable bottom plate 502 are respectively inserted into the slide grooves 504 on the four support columns 503, and can slide freely up and down along the slide grooves 504, so that the movable bottom plate 502 can move freely up and down in the rectangular fence 501. The lower edges of the four side walls of the rectangular fence 501 are bent inward to form a support platform 506 for supporting the movable bottom plate 502. After the movable bottom plate 502 slides freely along the slide grooves 504 to the bottom of the rectangular fence 501, the four edges of the movable bottom plate 502 are placed on the support platforms 506 around the rectangular fence 501, and the support force of the movable bottom plate 502 is strengthened by the support platforms 506. Please continue to refer to Figure 4 and Fig. 9 The carrier platform 103 is provided with receiving grooves 107 for inserting the rectangular fence 501 around it. The size of the carrier platform 103 is smaller than that of the rectangular fence 501. The carrier platform 103 can be inserted into the rectangular fence 501. After the manipulator 30 carries the sterilization transfer cage 50 to the upper end of the carrier platform 103, the carrier platform 103 is against the lower end of the movable bottom plate 502, and the rectangular fence 501 can freely fall into the receiving grooves 107 around the carrier platform 103, while the carrier platform 103 is against the lower end of the movable bottom plate 502 and inserted into the rectangular fence 501. The movable bottom plate 502 is on the carrier platform 103. At this time, the movable bottom plate 502 is flush with the top of the rectangular fence 501, and the rectangular fence 501 is hidden in the receiving grooves 107 around the supporting platform 103, so that there is no barrier between the loading surface of the movable bottom plate 502 and the conveying surface of the first conveyor belt 101, and between the loading surface of the movable bottom plate 502 and the conveying surface of the second conveyor belt 102, so that the bottled milk to be sterilized for the second time conveyed on the first conveyor belt 101 can enter the movable bottom plate 502, and the bottled milk that has completed the second sterilization in the movable bottom plate 502 can enter the second conveyor belt 102.

[0034] Please continue to see Figure 6Furthermore, reinforcing ribs 507 are cross-arranged along the diagonal direction of the bottom of the movable bottom plate 502, and the ends of the reinforcing ribs 507 facing the four corners of the movable bottom plate 502 are fixedly connected to the sliders 505 arranged at the four corners of the movable bottom plate 502, which can improve the bearing capacity of the movable bottom plate 502 and prevent its deformation.

[0035] Please see Figure 5 and Fig.10 Furthermore, the lower end of each of the support columns 503 protrudes toward the bottom of the rectangular fence 501, and the upper end of each of the support columns 503 is threadedly connected to a T-shaped positioning column 508, and the top of the T-shaped positioning column 508 is provided with a positioning groove 509, and the positioning groove 509 matches the lower end of the support column 503. On the one hand, the boss formed on the top of the T-shaped positioning column 508 is convenient for the manipulator 30 to grab and carry. On the other hand, when the sterilization and transfer cages 50 are stacked, the lower ends of the support columns 503 located on the four corners of the sterilization and transfer cages 50 stacked on the upper layer can be inserted into the positioning grooves 509 on the T-shaped positioning columns 508 at the four corners of the sterilization and transfer cages 50 stacked on the lower layer, and the positioning grooves 509 are used to position and limit the support columns 503, so that the stacked sterilization and transfer cages 50 are more stable.

[0036] Please continue to see Figure 1 In a preferred embodiment, the batch transfer carts 20 are divided into two groups, and the secondary sterilization kettle 40 and the batch transfer carts 20 are arranged correspondingly, and can be used alternately with each other to improve the sterilization efficiency and the transfer efficiency of the secondary sterilized bottled milk. For example, the first group of batch transfer carts 20 transfers the bottled milk that has undergone secondary sterilization from the secondary sterilization kettle 40 to the working area of ​​the manipulator 30, and the second group of batch transfer carts 20 are also parked in the working area of ​​the manipulator 30 and are in an empty state. After the manipulator 30 transports the sterilization transfer cage 50 carrying the bottled milk that has undergone secondary sterilization from the first group of batch transfer carts 20 to the carrying platform 103 of the conveying mechanism 10, the bottled milk that has undergone secondary sterilization loaded in the sterilization transfer cage 50 is pushed into the second conveyor belt 102 through the milk bottle pushing device 104, and the bottled milk that has undergone secondary sterilization loaded in the sterilization transfer cage 50 is transported to the second conveyor belt 102 through the second conveyor belt 103. 02 for transfer. After the sterilization transfer cage 50 is empty, the first conveyor belt 101 transfers the bottled milk to be sterilized for the second time into the sterilization transfer cage 50. The manipulator 30 then transports the sterilization transfer cage 50 loaded with the bottled milk to be sterilized for the second time to the second group of batch transfer carts 20. The reciprocating transport action is performed in this way until the manipulator 30 transfers all the sterilization transfer cages 50 on the first group of batch transfer carts 20 to the second group of batch transfer carts 20. Then, the second group of batch transfer carts 20 transports the bottled milk to be sterilized for the second time to the secondary sterilization kettle 40 for sterilization.

[0037] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A secondary sterilization system for bottled milk, characterized by: The invention comprises a conveying mechanism for conveying bottled milk after primary sterilization, a batch transfer trolley, a manipulator and a secondary sterilization kettle, wherein the manipulator is arranged at one side of the conveying mechanism, the batch transfer trolley is arranged between the manipulator and the secondary sterilization kettle, and can move in the secondary sterilization kettle and between the working area of ​​the manipulator, a plurality of sterilization transfer cages for holding bottled milk are stacked on the batch transfer trolley, the manipulator transports the sterilization transfer cages on the conveying mechanism in sequence, after the conveying mechanism pushes the transported bottled milk into the sterilization transfer cages, the manipulator then transports the sterilization transfer cages carrying the bottled milk from the conveying mechanism to the batch transfer trolley, after the sterilization transfer cages carrying the bottled milk are transported to the secondary sterilization kettle by the batch transfer trolley for secondary sterilization, the sterilization transfer cages carrying the bottled milk are then transported to the working area of ​​the manipulator, the sterilization transfer cages carrying the bottled milk after secondary sterilization are transported on the conveying mechanism in sequence by the manipulator, and the bottled milk after secondary sterilization is transported again by the conveying mechanism.

2. The bottled milk secondary sterilization system according to claim 1, characterized in that: The conveying mechanism comprises a first conveyor belt, a second conveyor belt, a milk bottle pushing device, a milk bottle stopping device and a bearing platform for carrying a sterilization transfer cage. The bearing platforms are arranged in parallel, the first conveyor belt and the second conveyor belt are respectively arranged in parallel at two ends of the bearing platform, and the output end of the first conveyor belt is directly opposite to the input end of the second conveyor belt, and the conveying directions of the first conveyor belt and the second conveyor belt are consistent. The sterilization transfer cage is placed in parallel at the upper end of the bearing platform, the carrying surface of the sterilization transfer cage is flush with or lower than the conveying surface of the first conveyor belt, and the carrying surface of the sterilization transfer cage is flush with or higher than the conveying surface of the second conveyor belt. The milk bottle stopping device is set up just above one end of the bearing platform close to the second conveyor belt to stop and limit the bottled milk to be sterilized for the second time entering the sterilization transfer cage. The milk bottle pushing device is set up just above the conveying surface of the first conveyor belt and close to the output end of the first conveyor belt, and can move in parallel to the input end of the second conveyor belt to push the bottled milk after the second sterilization to the second conveyor belt.

3. The bottled milk secondary sterilization system according to claim 2, characterized in that: The milk bottle stopping device comprises a first gantry support, a stop plate and a first lifting drive. The first gantry support is horizontally erected just above one end of the load-bearing platform close to the second conveyor belt. The stop plate has a vertical cross bar at the lower end of the first gantry support. The first lifting drive is longitudinally installed on the first gantry support. The telescopic arm of the first lifting drive is connected to the stop plate and drives the stop plate to perform lifting and lowering movements. After the stop plate descends, it can stop and limit the bottled milk to be sterilized for the second time entering the sterilization transfer cage. After the stop plate rises, it can allow the bottled milk to pass from underneath it.

4. The bottled milk secondary sterilization system according to claim 3, characterized in that: The milk bottle pushing device includes a second gantry bracket, a pushing plate, a second lifting drive, a support seat, a driving screw and a driving motor. There are two support seats, which are symmetrically arranged on both sides of the bearing platform. There are two driving screws, which are rotatably arranged on the two support seats. The two ends of the two driving screws are respectively extended toward the output end of the first conveyor belt and the input end of the second conveyor belt, and the two driving screws are parallel to each other. The second gantry bracket is spanned and erected just above the conveying surface of the first conveyor belt, and the lower end of the second gantry bracket is respectively threadedly connected with the two driving screws. There are two driving motors, which are respectively arranged at one end of the two driving screws, and can respectively drive the two driving screws to rotate synchronously and in the same direction. , to drive the second gantry support to reciprocate toward the input end direction of the second conveyor belt, the push plate vertically crossbar is at the lower end of the second gantry support, the second lifting drive is longitudinally installed on the second gantry support, the telescopic arm of the second lifting drive is connected to the push plate, and drives the push plate to perform lifting movement. After the push plate rises, the bottled milk conveyed on the conveying surface of the first conveyor belt can pass from below it into the sterilization transfer cage placed on the bearing platform. After the push plate descends, the bottled milk conveyed on the conveying surface of the first conveyor belt can be stopped, and when the second gantry support moves toward the input end direction of the second conveyor belt, it can drive the push plate to push the bottled milk in the sterilization transfer cage placed on the bearing platform into the second conveyor belt.

5. The bottled milk secondary sterilization system according to claim 4, characterized in that: The conveying mechanism also includes limit stop rods, which are divided into two groups and are arranged in parallel on both sides of the bearing platform, and extend along the bearing platform toward the conveying direction of the first conveyor belt and the second conveyor belt, and are higher than the bearing platform to enclose the bottled milk entering the sterilization transfer cage.

6. The bottled milk secondary sterilization system according to claim 5, characterized in that: The sterilization transfer cage includes a rectangular fence that passes through the top and bottom and matches the carrying platform, and a movable bottom plate for carrying bottled milk. Support columns are vertically arranged at the four corners of the rectangular fence. Each support column is vertically provided with a slide groove on the side wall facing the diagonal of the rectangular fence. The lower end of the slide groove is close to the bottom of the rectangular fence, and the upper end of the slide groove is flush with the top of the rectangular fence. The movable bottom plate is arranged in parallel in the rectangular fence. Slide blocks that match the slide grooves on the four support columns are respectively arranged at the four corners of the movable bottom plate. The slide blocks at the four corners of the movable bottom plate are respectively inserted into the slide grooves on the four support columns and can slide freely up and down along the slide grooves. Receiving grooves for inserting the rectangular fence are arranged around the carrying platform. After the manipulator carries the sterilization transfer cage onto the carrying platform, the carrying platform is against the lower end of the movable bottom plate, and the rectangular fence can freely fall into the receiving grooves around the carrying platform for hiding, and the carrying platform is inserted into the rectangular fence, and the movable bottom plate is pressed against the top of the rectangular fence, so that there is no barrier between the loading surface of the movable bottom plate and the conveying surface of the first conveyor belt.

7. The bottled milk secondary sterilization system according to claim 6, characterized in that: The lower edges of the four side walls of the rectangular fence are bent inward to form a support platform for supporting the movable bottom plate. After the movable bottom plate slides freely along the slide groove to the bottom of the rectangular fence, the four peripheral edges of the movable bottom plate are placed on the support platform.

8. The bottled milk secondary sterilization system according to claim 7, characterized in that: The bottom of the movable bottom plate is cross-arranged with reinforcing ribs along its diagonal direction, and the ends of the reinforcing ribs facing the four corners of the movable bottom plate are respectively fixedly connected to the sliding blocks arranged at the four corners of the movable bottom plate.

9. The bottled milk secondary sterilization system according to claim 8, characterized in that: The lower end of each support column is protruding toward the bottom of the rectangular fence, and the upper end of each support column is provided with a T-shaped positioning column, and the top of the T-shaped positioning column is provided with a positioning groove matching the lower end of the support column.

10. The bottled milk secondary sterilization system according to claim 9, characterized in that: The batch transfer carts are divided into two groups, and the secondary sterilization kettles are arranged corresponding to the batch transfer carts.

Images