Tea capsule assembly and filling integrated production line

Abstract

This invention relates to an integrated production line for tea capsule assembly and filling. The production line includes: an assembly section, used at least to assemble the pressure valve core, pressure regulating bead, and filter membrane of the tea capsule into the cup body to form a semi-finished tea capsule; a bottom welding section, used at least to seal the lower cover membrane of the tea capsule to the bottom outlet of the tea capsule; a filling section, used at least to fill the contents into the cup body of the tea capsule and seal the upper cover membrane of the tea capsule to the top inlet of the tea capsule to form a finished tea capsule; and a cup dispensing section, used at least to output the finished tea capsules. The assembly section, bottom welding section, filling section, and cup dispensing section are sequentially connected to form an integrated production line for tea capsule assembly and filling. This invention can complete the assembly of multiple capsule cup components online, and simultaneously fill and seal the assembled capsule cups online, exhibiting a high degree of integration and automation, effectively improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of tea packaging technology, and in particular to an integrated production line for tea capsule assembly and filling. Background Technology

[0002] Capsule beverages are popular due to their hygiene, convenience, and ability to quickly produce a delicious drink when used with a brewing machine. Currently, the filling of capsule-form contents (such as capsule tea or capsule coffee) typically involves placing pre-made capsule cups onto a filling line, filling the capsule cups with the contents (tea or coffee, etc.), and then sealing the top of the capsule cups online to create the final capsule product.

[0003] Currently, most filling production lines are designed for filling finished capsule cups, with few lines specifically designed for assembling complex capsule cups composed of multiple components. Especially for raw materials like tea leaves, which have large, fluffy leaves, there are very few reports of integrated production lines that can automate the assembly of multi-component capsule cups (such as the tea capsules disclosed in Chinese patent CN114013798B, entitled "Tea Capsule") and achieve online filling. Therefore, current tea capsule production lines cannot achieve a streamlined process from assembly to filling and packaging into finished capsule products.

[0004] Therefore, based on years of experience and practice in related industries, the inventor proposes an integrated production line for tea capsule assembly and filling to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated production line for tea capsule assembly and filling. This line can assemble multiple capsule cup components online, and simultaneously fill and seal the assembled capsule cups online to obtain the final product, tea capsules. This solution enables fully automated assembly, filling, and sealing of tea capsules on a single production line. It boasts a high degree of integration and automation, improving production efficiency. Furthermore, the reduction of intermediate transfer steps helps improve product cleanliness and meet hygiene standards.

[0006] The objective of this invention can be achieved through the following methods:

[0007] This invention provides an integrated production line for tea capsule assembly and filling, the production line comprising:

[0008] The assembly section is used to assemble the pressure valve core, pressure regulating bead and filter membrane of the tea capsule into the cup body to form a semi-finished tea capsule.

[0009] The bottom welding section is used at least to seal the lower cover film of the tea capsule to the bottom outlet of the tea capsule;

[0010] The filling section is at least used to fill the contents into the cup of the tea capsule and seal the top cover film of the tea capsule to the top water inlet of the tea capsule to form a finished tea capsule;

[0011] The cup-dispensing section is used at least to output the finished tea capsules;

[0012] The assembly section, the welding section, the filling section, and the cup dispensing section are sequentially connected to form the integrated production line for tea capsule assembly and filling.

[0013] As described above, the integrated tea capsule assembly and filling production line of the present invention has the following characteristics and advantages: It forms an integrated tea capsule assembly and filling production line by sequentially connecting the assembly section, the bottom welding section, the filling section, and the cup dispensing section. This production line is suitable for assembling and filling tea capsules to form finished products. Specifically, the assembly section is used to assemble the pressure valve core, pressure regulating bead, and filter membrane from the tea capsule into the cup body to form a semi-finished tea capsule; the bottom welding section is used to seal the lower cap membrane of the tea capsule to the bottom outlet of the tea capsule; and the filling section is used to fill the contents into the cup body of the tea capsule and... The top cover membrane of the tea capsule is sealed to the water inlet at the top of the tea capsule to form a finished tea capsule. The finished tea capsule is then output through the cup dispensing section. The integrated tea capsule assembly and filling production line of the present invention can complete the assembly of multiple capsule cup components online, and can simultaneously fill and seal the assembled capsule cups online to finally obtain the finished capsule tea. The integrated tea capsule assembly and filling production line of the present invention can realize fully automatic assembly, filling and sealing of capsule tea. It has a high degree of integration and automation, which improves production efficiency. At the same time, the reduction of intermediate links helps to improve the cleanliness of the product and meet hygiene standards. Attached Figure Description

[0014] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

[0015] Figure 1 : This is a perspective view of tea capsules used in an integrated tea capsule assembly and filling production line according to one embodiment of the present invention.

[0016] Figure 2 : A front cross-sectional view of a tea capsule used in an integrated tea capsule assembly and filling production line according to one embodiment of the present invention.

[0017] Figure 3 : This is a front view of an integrated tea capsule assembly and filling production line according to one embodiment of the present invention.

[0018] Figure 4: This is a top view of an integrated tea capsule assembly and filling production line according to one embodiment of the present invention.

[0019] Figure 5 : This is a flowchart of an integrated tea capsule assembly and filling production line according to one embodiment of the present invention.

[0020] Figure 6 : This is a perspective view of an integrated production line for tea capsule assembly and filling in one embodiment of the present invention.

[0021] Figure 7 This is a partial enlarged view of the cup sorting station in the integrated tea capsule assembly and filling production line of the present invention.

[0022] Figure 8 This is a partially enlarged view of the pressure valve core installation station in the integrated tea capsule assembly and filling production line of the present invention.

[0023] Figure 9 This is a partial enlarged view of the pressure regulating bead installation station in the integrated tea capsule assembly and filling production line of the present invention.

[0024] Figure 10 This is a partial enlarged view of the pressure regulating bead detection station in the integrated tea capsule assembly and filling production line of the present invention.

[0025] Figure 11 This is a partial enlarged view of the filter membrane cutting and sealing station in the integrated tea capsule assembly and filling production line of the present invention.

[0026] Figure 12 This is a partial enlarged view of the visual inspection station for the filter membrane in the integrated tea capsule assembly and filling production line of the present invention.

[0027] Figure 13 This is a partial enlarged view of the ultrasonic welding station of the filter membrane in the integrated tea capsule assembly and filling production line of the present invention.

[0028] Figure 14 This is a partial enlarged view of the first cup-turning station in the integrated tea capsule assembly and filling production line of the present invention.

[0029] Figure 15 This is a partial enlarged view of the lower cap film cutting and sealing station in the integrated tea capsule assembly and filling production line of the present invention.

[0030] Figure 16 This is a partial enlarged view of the visual inspection station for the lower cap film in the integrated tea capsule assembly and filling production line of the present invention.

[0031] Figure 17 This is a partially enlarged view of the secondary welding station of the lower cap film in the integrated production line for tea capsule assembly and filling of the present invention.

[0032] Figure 18 This is a partially enlarged view of the second cup-turning station in the integrated tea capsule assembly and filling production line of the present invention.

[0033] Figure 19 This is a partial enlarged view of the cup inspection station in the integrated tea capsule assembly and filling production line of the present invention.

[0034] Figure 20 This is a partial enlarged view of the filling and pressing station in the integrated tea capsule assembly and filling production line of the present invention.

[0035] Figure 21 This is a partially enlarged view of the secondary pressing station in the integrated tea capsule assembly and filling production line of the present invention.

[0036] Figure 22 This is a partial enlarged view of the capping station in the integrated tea capsule assembly and filling production line of the present invention.

[0037] Figure 23 This is a partial enlarged view of the cup lid visual inspection station in the integrated tea capsule assembly and filling production line of the present invention.

[0038] Figure 24 This is a partial enlarged view of the upper cover film placement station in the integrated tea capsule assembly and filling production line of the present invention.

[0039] Figure 25 This is a partially enlarged view of the upper cover film welding station in the integrated tea capsule assembly and filling production line of the present invention.

[0040] Figure 26 This is a partial enlarged view of the visual inspection station for the top cover film in the integrated tea capsule assembly and filling production line of the present invention.

[0041] Figure 27 This is a partially enlarged view of the third cup-turning station in the integrated tea capsule assembly and filling production line of the present invention.

[0042] The reference numerals in the accompanying drawings of this invention are:

[0043] 1' Cup body; 2' Upper cover diaphragm; 3' Cup lid; 4' Filter membrane; 5' Pressure valve core; 6' Pressure regulating bead; 7' Lower cover diaphragm;

[0044] 100. Assembly section; 1001. Waste removal section; 200. Bottom welding section; 300. Filling section; 400. Cup dispensing section;

[0045] 1. Cup sorting station; 101. Cup sorting tray; 102. Conveying trough; 103. First conveyor belt; 104. First pneumatic push-pull rod; 105. First pneumatic lifting rod; 106. First gripper; 107. Second gripper; 108. Positioning slot; 109. First cup placement slot;

[0046] 2. Pressure valve core installation station; 201. Valve core feeding tray; 202. Second pneumatic push-pull rod; 203. Second pneumatic lifting rod; 204. Pressing lifting rod;

[0047] 3. Pressure regulating bead installation station; 301. Steel ball feeding tray; 302. Material discharge channel; 303. Third pneumatic push-pull rod; 304. End; 305. Support block; 306. Flat plate; 3061. Alignment through hole; 307. Slider; 308. Fourth pneumatic push-pull rod; 309. Third pneumatic lifting rod; 3091. Suction nozzle;

[0048] 4. Voltage regulating bead detection station; 401. First laser sensor;

[0049] 5. Filter membrane cutting and sealing station; 501. Filter membrane; 502. Filter membrane unwinding roller; 503. Filter membrane unwinding and winding roller; 504. Filter membrane winding and winding roller; 505. Filter membrane winding roller; 506. Fourth pneumatic lifting rod; 507. First lifting block; 508. First lifting slide rail;

[0050] 6. Filter membrane visual inspection station; 601. First image acquisition device;

[0051] 7. Filter membrane ultrasonic welding station; 701. Fifth pneumatic lifting rod; 702. Ultrasonic welding head; 703. Mounting bracket; 704. Second lifting slide rail; 705. Mounting frame;

[0052] 8. First cup-flipping station; 801. Second conveyor belt; 8011. Second cup placement slot; 802. Third gripper; 803. Fourth gripper; 804. First cup-flipping gripper; 805. First transfer trough; 806. Sixth pneumatic lifting rod; 807. First horizontal connecting plate; 808. First translation track; 809. First cup-flipping motor;

[0053] 9. Lower cover film cutting and sealing station; 901. Lower cover film; 902. Lower cover film unwinding roller; 903. Lower cover film unwinding and winding roller; 904. Lower cover film winding and winding roller; 905. Lower cover film winding roller; 906. Seventh pneumatic lifting rod; 907. Second lifting block; 908. Third lifting slide rail

[0054] 10. Visual inspection station for the lower cover film; 1002. Second image acquisition device;

[0055] 11. Secondary welding station for the lower cover film; 1101. Eighth pneumatic lifting rod; 1102. Welding head for the lower cover film; 1103. First buffer seat; 1104. First lower guide plate; 1105. First upper guide plate; 1106. First guide column; 1107. First spring; 1108. First limit nut;

[0056] 12. Second cup-turning station; 1201. Third conveyor belt; 1202. Fifth gripper; 1203. Sixth gripper; 1204. Second cup-turning gripper; 1205. Second transfer trough; 1206. Ninth pneumatic lifting rod; 1207. Second horizontal connecting plate; 1208. Second translation track; 1209. Second cup-turning motor;

[0057] 13. Cup inspection station; 1301. Second laser sensor;

[0058] 14. Filling and pressing station; 1401. Pressing cover; 1402. Feeding cylinder; 1403. Discharge hopper; 1404. Tenth pneumatic lifting rod; 1405. First support plate; 1406. Support frame; 1407. Lifting device; 1408. Weighing device;

[0059] 15. Secondary pressing station; 1501. Eleventh pneumatic lifting rod; 1502. Suction cover; 1503. Second pressing head; 1504. Suction pipeline;

[0060] 16. Lid-fastening station; 1601. Lid feeding tray; 1602. Lid conveyor belt; 1603. Fifth pneumatic push-pull rod; 1604. Receiving tray; 1605. Twelfth pneumatic lifting rod; 1606. First pneumatic suction cup; 1607. Second pneumatic suction cup; 1608. Third translation track; 1609. Third horizontal connecting plate; 1610. Lid transfer trough;

[0061] 17. Cup lid visual inspection station; 1701. Third image acquisition device;

[0062] 18. Top cover film placement station; 1801. Film placement cylinder; 1802. Third pneumatic suction cup; 1803. Position adjustment shaft; 1804. Second support plate; 1805. Control box; 1806. Shielding curtain;

[0063] 19. Top cover film welding station; 1901. Thirteenth pneumatic lifting rod; 1902. Top cover film welding head; 1903. Second buffer seat; 1904. Second lower guide plate; 1905. Second upper guide plate; 1906. Second guide column; 1907. Second spring; 1908. Second limit nut;

[0064] 20. Visual inspection station for the top cover film; 2001. Fourth image acquisition device;

[0065] 21. Third cup-flipping station; 2101. Swing arm; 2102. Rotary shaft; 2103. Fourth pneumatic suction cup; 2104. Cup-flipping plate; 2105. Cup-flipping groove; 2106. Swing arm motor; 2107. Third cup-flipping motor;

[0066] 22. Cup dispensing station; 2201. Cup dispensing conveyor belt. Detailed Implementation

[0067] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0068] The integrated tea capsule assembly and filling production line of the present invention can complete the assembly of multiple capsule cup components in the tea capsule online in the assembly section 100 and the welding section 200. The assembled capsule cups are then transported online to the filling section 300 for filling and sealing of the filling port, and finally the finished capsule tea is output from the cup dispensing section 400.

[0069] The integrated tea capsule assembly and filling production line of the present invention is used for the integrated production of tea capsules, wherein, as... Figure 1 , Figure 2 As shown, the tea capsule structure includes a cup body 1', an upper cover membrane 2', a cup lid 3' with a shower head structure, a filter membrane 4', a pressure valve core 5', a pressure regulating bead 6', and a lower cover membrane 7'. The top and bottom of the cup body 1' have an inlet and an outlet, respectively. The cup lid 3' is located at the inlet, and the upper cover membrane 2' is located at the inlet and above the cup lid 3'. The lower cover membrane 7' is located at the outlet. The pressure valve core 5' is located inside the cup body 1' and near the outlet. The filter membrane 4' is located at the inlet of the pressure valve core 5'. The pressure regulating bead 6' is movably disposed in the internal channel of the pressure valve core 5' to control the opening and closing of the channel. The specific structure of the above tea capsule can be found in Chinese Patent No. CN114013798B, entitled "Tea Capsule".

[0070] like Figures 3 to 27As shown, this invention provides an integrated production line for tea capsule assembly and filling. The integrated production line includes an assembly section 100, a bottom welding section 200, a filling section 300, and a cup dispensing section 400. The assembly section 100 is used at least to assemble the pressure valve core 5', pressure regulating bead 6', and filter membrane 4' from the tea capsule onto the cup body 1' to form a semi-finished tea capsule. The bottom welding section 200 is used at least to seal the lower cover membrane 7' from the tea capsule to the bottom outlet of the tea capsule. The filling section 300 is used at least to fill the contents (such as tea leaves or coffee) into the cup body 1' of the tea capsule and seal the upper cover membrane 2' from the tea capsule to the top inlet of the tea capsule to form a finished tea capsule. The cup dispensing section 400 is used at least to output the finished tea capsule. The assembly section 100, bottom welding section 200, filling section 300, and cup dispensing section 400 are sequentially connected to form an integrated production line for tea capsule assembly and filling.

[0071] In this invention, an integrated production line for tea capsule assembly and filling is formed by sequentially connecting the assembly section 100, the bottom welding section 200, the filling section 300, and the cup dispensing section 400. This line is suitable for assembling and filling tea capsules to form finished products. Specifically, the assembly section 100 is used to assemble the pressure valve core 5', pressure regulating bead 6', and filter membrane 4' from the tea capsule onto the cup body 1' to form a semi-finished tea capsule. The bottom welding section 200 is used to seal the lower cover membrane 7' of the tea capsule to the bottom outlet of the tea capsule. The filling section 300 is used to fill the contents of the tea capsule into the cup body 1'. The upper cover membrane 2' of the tea capsule is sealed to the top water inlet of the tea capsule to form a finished tea capsule. Then, the finished tea capsule is output through the cup-dispensing section 400. The integrated tea capsule assembly and filling production line of the present invention can complete the assembly of multiple capsule cup components online. At the same time, it can fill and seal the contents of the assembled capsule cups online to finally obtain the finished capsule tea. The integrated tea capsule assembly and filling production line of the present invention can realize the fully automatic assembly, filling and sealing of capsule tea. It has a high degree of integration and automation, which improves production efficiency. At the same time, the reduction of intermediate links helps to improve the cleanliness of the product and meet hygiene standards.

[0072] In an optional embodiment of the present invention, such as Figures 3 to 6 As shown, the assembly section 100 includes the following stations arranged in sequence: cup handling station 1, pressure valve core installation station 2, pressure regulating bead installation station 3, pressure regulating bead inspection station 4, filter membrane cutting and sealing station 5, filter membrane visual inspection station 6, and filter membrane ultrasonic welding station 7.

[0073] In this embodiment, as Figures 3 to 7As shown, the cup handling station 1 includes a conveying channel 102, a first gripper 106, a second gripper 107, a first pneumatic push-pull rod 104, a first pneumatic lifting rod 105, and a first conveyor belt 103 for transporting the cup 1' to the next station. Multiple first cup placement slots 109 are spaced apart on the first conveyor belt 103 along its extension direction. A positioning groove 108 is provided between the outlet of the conveying channel 102 and the first conveyor belt 103. The outlet of the conveying channel 102, the positioning groove 108, and the first cup placement slots 109 can be located on the same straight line. The first pneumatic push-pull rod 104 can be fixed above the first conveyor belt 103 by a bracket. The actuating end of 04 (i.e., its piston rod part) extends horizontally and is connected to the first pneumatic lifting rod 105. The actuating end of the first pneumatic lifting rod 105 (i.e., its piston rod part) extends vertically downward and is connected to the first gripper 106 and the second gripper 107 respectively. The first gripper 106 and the second gripper 107 are arranged side by side. The first gripper 106 is used to transfer the cup body 1' located at the outlet of the conveying channel 102 to the positioning groove 108. The second gripper 107 is used to transfer the cup body 1' located in the positioning groove 108 to the first cup placement groove 109. The first gripper 106 and the second gripper 107 perform the action of transferring the cup body 1' synchronously.

[0074] The first gripper 106 and the second gripper 107 can be pneumatic grippers, which are driven by air valves to open and close, thereby clamping the cup 1'. Of course, the first gripper 106 and the second gripper 107 can also adopt other existing clamping structures, as long as they can achieve the clamping and releasing action of the cup 1'. The specific structure of the first gripper 106 and the second gripper 107 is not limited here.

[0075] Furthermore, such as Figure 3 , Figure 4 , Figure 6 As shown, the cup sorting station 1 also includes a cup sorting tray 101 with an internal vibration structure. The outlet of the cup sorting tray 101 is connected to the inlet of the conveying channel 102 to sequentially convey the cups 1' in the cup sorting tray 101 into the conveying channel 102. The cup sorting tray 101 can adopt an existing sorting tray structure; the specific structure of the cup sorting tray 101 is not limited in this invention.

[0076] In this invention, the working principle of the cup-sorting station 1 is as follows:

[0077] 1. After the cup body 1' is fed into the cup body sorting tray 101, the cup body sorting tray 101 vibrates and sorts the cup body 1' so that the cup body 1' enters the conveying channel 102 in sequence. The cup body 1' contacts each other in the conveying channel 102 and is pushed forward in a single row to the side of the first conveyor belt 103 (i.e., the outlet position of the conveying channel 102); 2. At this time, the first pneumatic push-pull rod 104 drives the first pneumatic lifting rod 105 to move towards the conveying channel 102, until the first gripper 106 is located at the outlet of the conveying channel 102. Directly above body 1', due to the synchronous movement of the first gripper 106 and the second gripper 107, the second gripper 107 moves to directly above the positioning groove 108; thirdly, the first gripper 106 and the second gripper 107 change from a closed state to an open state under the pneumatic action of their respective air valves. At this time, the first pneumatic lifting rod 105 drives the first gripper 106 and the second gripper 107 to descend synchronously into the conveying channel 102 and the positioning groove 108, controlling the first gripper 106 and the second gripper 107 to change from an open state to an open state. The open state is switched to the closed state, clamping the cup 1' located at the outlet of the conveying channel 102 and in the positioning groove 108 respectively; Fourth, the first pneumatic lifting rod 105 drives the first gripper 106 and the second gripper 107 to rise, and then the first pneumatic push-pull rod 104 drives the first gripper 106 and the second gripper 107 to move towards the first conveyor belt 103, until the first gripper 106 is above the positioning groove 108 and the second gripper 107 is above the first conveyor belt 103; Fifth, control the first The pneumatic lifting rod 105 drives the first gripper 106 and the second gripper 107 to descend synchronously again. At this time, the first gripper 106 is located at a lower position above the positioning groove 108, and the second gripper 107 is located at a lower position above the first cup placement groove 109 of the first conveyor belt 103. The first gripper 106 and the second gripper 107 are then opened, and the cup 1' falls into the positioning groove 108 and the first cup placement groove 109 respectively. The cup 1' that falls into the first cup placement groove 109 moves forward with the first conveyor belt 103 to the next station. The first conveyor belt 103 is a closed track structure that can continuously circulate.

[0078] The positioning groove 108 is used to correct any potential positional deviations that may occur when the conveying channel 102 transports the cup 1'. Due to the positioning groove 108, the gripper always holds the same part of the cup 1', thus preventing the cup 1' from being inaccurately placed into the first cup placement slot 109. The first pneumatic push-pull rod 104 and the first pneumatic lifting rod 105 are pneumatically controlled by air valves.

[0079] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 8As shown, the pressure valve core installation station 2 includes a valve core feeding tray 201, a second pneumatic push-pull rod 202, a second pneumatic lifting rod 203, and a first conveyor belt 103 for transporting the cup body 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup feeding station 1. The valve core feeding tray 201 is located on one side of the first conveyor belt 103 and is used to sequentially transport the pressure valve core 5'. The second pneumatic push-pull rod 202 is located above the first conveyor belt 103. The actuating end of the second pneumatic push-pull rod 202 (i.e., its piston rod portion) extends horizontally and is connected to the second pneumatic lifting rod 203. The actuating end of the second pneumatic lifting rod 203 (i.e., its piston rod portion) extends vertically downward and is provided with a piercing head at the actuating end of the second pneumatic lifting rod 203. The piercing head can be inserted into the central hole on the pressure valve core 5' and is interference-fitted to the inner wall of the central hole. The diameter of the puncture head can be set according to the diameter of the central hole on the pressure valve core 5', ensuring that the diameter of the puncture head is slightly larger than the diameter of the central hole on the pressure valve core 5', so that when the puncture head is inserted into the central hole on the pressure valve core 5', the pressure valve core 5' can be lifted up and will not fall off.

[0080] Furthermore, such as Figures 3 to 6 , Figure 8 As shown, the pressure valve core installation station 2 includes a vertically arranged and vertically movable clamping lifting rod 204. Along the conveying direction of the first conveyor belt 103, the clamping lifting rod 204 is located downstream of the second pneumatic push-pull rod 202 and the second pneumatic lifting rod 203, and above the first conveyor belt 103. The bottom end of the clamping lifting rod 204 has a clamping head, and the shape and size of the bottom surface of the clamping head are the same as the shape and size of the top end face of the pressure valve core 5'. The clamping lifting rod 204 can be, but is not limited to, a vertically arranged pneumatic lifting rod.

[0081] In this invention, the working principle of the pressure valve core installation station 2 is as follows:

[0082] 1. The first conveyor belt 103 transports the cup body 1' to the pressure valve core installation station 2. At this time, the valve core sorting tray 201 arranges the pressure valve cores 5' into a single row and conveys them to the side of the first conveyor belt 103; 2. At this time, the second pneumatic push-pull rod 202 drives the second pneumatic lifting rod 203 to move towards the valve core sorting tray 201, until the second pneumatic lifting rod 203 moves directly above the pressure valve core '; 3. The second pneumatic lifting rod 203 descends until its piercing head is inserted into the center hole of the pressure valve core 5'. Since the pressure valve core 5' is made of elastic material, the piercing head is inserted into the pressure valve core 5' with an interference fit. Fourth, control the second pneumatic lifting rod 203 to rise, and the piercing head carries the pressure valve core 5' to a certain height; Fifth, at this time, the second pneumatic lifting rod 203 is moved towards the first conveyor belt 103 by the second pneumatic push-pull rod 202, moving the pressure valve core 5' directly above the cup body 1' on the first conveyor belt 103; Sixth, the second pneumatic lifting rod 203 descends again until the pressure valve core 5' reaches the cup body 1' for installation of the pressure valve core 5'. Inside the hole, as the second pneumatic lifting rod 203 moves downward, the pressure valve core 5' located on the puncture head is interference-fitted into the mounting hole inside the cup body 1'; VII. The second pneumatic lifting rod 203 moves upward again. Because the friction between the inner wall of the mounting hole inside the cup body 1' and the pressure valve core 5' is greater than the interference friction between the puncture head and the pressure valve core 5', when the second pneumatic lifting rod 203 moves upward, the pressure valve core 5' will disengage from the puncture head and be embedded into the mounting hole. Inside; 8. The cup body 1' with the pressure valve core 5' installed is transported downstream to below the pressing lifting rod 204. At this time, the actuating end of the pressing lifting rod 204 moves downward until the bottom surface of the pressing head at the bottom end of the pressing lifting rod 204 abuts against the top end surface of the pressure valve core 5', and presses the pressure valve core 5' into the mounting hole inside the cup body 1', so that the pressure valve core 5' is firmly embedded in the mounting hole, thereby avoiding the risk that the pressure valve core 5' cannot be installed in place by the second pneumatic lifting rod 203 alone.

[0083] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 9As shown, the pressure regulating bead installation station 3 includes a steel ball feeding tray 301, a slider 307, and a first conveyor belt 103 for transporting the cup 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup feeding station 1. The steel ball feeding tray 301 and the slider 307 are both located on one side of the first conveyor belt 103. The outlet of the steel ball feeding tray 301 is connected to the inlet of the discharge channel 302. The discharge channel 302 can only accommodate one pressure regulating bead 6' (i.e., the inner diameter of the discharge channel 302 is slightly larger than the diameter of the pressure regulating bead 6') to pass through. The top of the slider 307 has a discharge groove. The slider 307 is connected to the actuating end of the third pneumatic push-pull rod 303. The actuating end of the third pneumatic push-pull rod 303 can drive the slider in the horizontal direction. 307 moves to the bottom of the discharge channel 302, and the discharge chute is vertically opposite to the outlet of the discharge channel 302 so that the pressure regulating bead 6' in the discharge channel 302 falls into the discharge chute; the pressure regulating bead installation station 3 also includes a fourth pneumatic push-pull rod 308 and a third pneumatic lifting rod 309, which are located above the first conveyor belt 103. The fourth pneumatic push-pull rod 308 can be fixed above the first conveyor belt 103 by a bracket. The actuating end of the push-pull rod 308 extends horizontally and is connected to the third pneumatic lifting rod 309. The actuating end of the third pneumatic lifting rod 309 extends vertically downward and is equipped with a suction nozzle 3091. The suction nozzle 3091 is connected to a negative pressure pipeline to create negative pressure at the suction nozzle 3091. The third pneumatic push-pull rod 303 drives the slider 307 to move to a position close to the first conveyor belt 103. The actuating end of the fourth pneumatic push-pull rod 308 can drive the third The pneumatic lifting rod 309 moves to above the slider 307, and the suction nozzle 3091 is vertically opposite to the discharge chute. The actuating end of the third pneumatic lifting rod 309 drives the suction nozzle 3091 to move down and adsorb the pressure regulating bead 5' in the discharge chute to the bottom of the suction nozzle 3091. The fourth pneumatic push-pull rod 308 cooperates with the third pneumatic lifting rod 309 to drive the suction nozzle 3091 to move above the first conveyor belt 103 and move down to the assembly position of the suction nozzle 3091 inserted into the pressure valve core 5' to assemble the pressure regulating bead 6'.

[0084] Furthermore, such as Figure 9 As shown, the outlet of the material discharge channel 302 is provided with an end 304. Two support blocks 305 are arranged at intervals below the end 304. The end 304 and the two support blocks 305 enclose a channel for the slider 307 to move. When the slider 307 moves in the channel, the top surface of the slider 307 slides against the bottom surface of the end 304, and the two opposite sidewalls of the slider 307 slide against the sidewalls of the corresponding support blocks 305. The end 304 and the two support blocks 305 limit the slider 307 to ensure that the slider 307 can carry the pressure regulating bead 6' to the correct position, and ensure that the suction nozzle 3091 can successfully adsorb the pressure regulating bead 6'.

[0085] Furthermore, such as Figure 9 As shown, a plate 306 is connected to the end 304. The plate 306 extends horizontally toward the first conveyor belt 103. The plate 306 is provided with an alignment through hole 3061. The slider 307 can move to the bottom of the plate 306, and the material drop chute is connected to the alignment through hole 3061. The pressure regulating bead 6' passes through the alignment through hole 3061 and is attracted by the suction nozzle 3091.

[0086] The ball bearing feeder 301 can adopt an existing feeder structure, and the specific structure of the ball bearing feeder 301 is not limited in this invention.

[0087] Among them, the voltage regulating bead 6' can be, but is not limited to, a steel bead.

[0088] In this invention, the working principle of the voltage regulating bead installation station 3 is as follows:

[0089] 1. After the pressure valve core 5' is installed, the cup body 1' is transported to the pressure regulating bead installation station 3. The steel ball feeding tray 301 feeds the pressure regulating bead 6' into the discharge channel 302 through vibration feeding. The discharge channel 302 only allows one pressure regulating bead 6' to pass through at a time. 2. With the reciprocating push-pull motion of the third pneumatic push-pull rod 303, the slider 307 can be moved. 3. The pressure regulating bead 6' falls into the discharge groove on the slider 307 through the discharge channel 302, and then the third pneumatic push-pull rod 303 drives the slider 307 to move closer to the first conveyor belt 1. 03. Move in the direction until the material chute is vertically aligned with the alignment through hole 3061 on the plate 306. At this time, the pressure regulating bead 6' in the material chute can be exposed through the alignment through hole 3061 (since the material chute can only hold a single pressure regulating bead 6', the slider 307 can only carry a single pressure regulating bead 6' at a time); Fourth, the fourth pneumatic push-pull rod 308 and the third pneumatic lifting rod 309 cooperate to drive the suction nozzle 3091 to move directly above the pressure regulating bead 6'. Since the suction nozzle 3091 is a hollow cylindrical structure, the bottom surface of the suction nozzle 3091 is a contoured groove that matches the pressure regulating bead 6', which facilitates the pneumatic suction of the pressure regulating bead 6'. At this time, the third pneumatic lifting rod 309 drives the suction nozzle 3091 to move down to contact the pressure regulating bead 6', and the pressure regulating bead 6' in the material drop trough is adsorbed under the action of negative pressure suction. After the adsorption of the pressure regulating bead 6' is completed, the fourth pneumatic push-pull rod 308 and the third pneumatic lifting rod 309 cooperate to drive the suction nozzle 3091 to move above the first conveyor belt 103, and move down to the assembly position of the suction nozzle 3091 into the pressure valve core 5' (at this time, the cup body 1' has already installed the pressure valve core 5') for the pressure regulating bead 6' (in the center hole on the pressure valve core 5'). The pressure regulating bead 6' is inserted to the preset depth of the assembly position. At this time, the negative pressure suction is disconnected, and the pressure regulating bead 6' is separated from the suction nozzle 3091 and remains in the assembly position. This completes the installation of the pressure regulating bead 6', and the first conveyor belt 103 sends the cup body 1' with the pressure regulating bead 6' installed to the next station.

[0090] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 10 As shown, the pressure regulating bead detection station 4 includes a first laser sensor 401 and a first conveyor belt 103 for transporting the cup body 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup handling station 1. The first laser sensor 401 is located above the first conveyor belt 103, and the detection end of the first laser sensor 401 faces the location of the pressure regulating bead 6' inside the cup body 1'.

[0091] In this invention, the working principle of the voltage regulating bead detection station 4 is as follows: The purpose of the voltage regulating bead detection station 4 is to detect whether the cup body 1' is easily assembled with the voltage regulating bead 6', and whether the voltage regulating bead 6' is installed in the preset position. When the cup body 1' reaches below the voltage regulating bead detection station 4, the first laser sensor 401 emits a laser beam to the location of the voltage regulating bead 6'. This laser beam is a laser beam of a specific wavelength used for metal detection. After the beam touches the voltage regulating bead 6', it will reflect the laser beam back to the first laser sensor 401. The first laser sensor 401 determines whether the distance between the voltage regulating bead 6' and the first laser sensor 401 is within the preset distance range by timing the round trip of the laser beam, thereby realizing the distance measurement of the voltage regulating bead 6' and the detection of the presence or absence of the voltage regulating bead 6'. The cup 1' that passes the inspection is sent to the next station by the first conveyor belt 103; if it fails the inspection, the cup 1' will not be used at any subsequent station, and the unqualified cup 1' will fall into the waste rejection port 1001 and be recycled when it reaches the assembly section 100 with the first conveyor belt 103.

[0092] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 11 As shown, the filter membrane cutting and sealing station 5 includes a fourth pneumatic lifting rod 506 and a first conveyor belt 103 for transporting the cup body 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup handling station 1. The fourth pneumatic lifting rod 506 is located above the first conveyor belt 103, and its actuating end extends vertically downwards. A cutting and sealing integrated tool is provided at the actuating end of the fourth pneumatic lifting rod 506. The cutting and sealing integrated tool can be used to cut the filter membrane 501 located above the first conveyor belt 103 and weld it into the cup body 1', located at the top of the pressure valve core 5'. The cutting and sealing integrated tool integrates a cutting blade and a heating block. The cutting blade can be used to cut the filter membrane 501 to form a filter membrane sheet 4', and the heating block heats the cutting blade to weld the cut filter membrane sheet 4' into the cup body 1'. The specific structure of the cutting and sealing integrated tool is not limited in this invention; it only needs to achieve the functions of cutting and heat sealing. Of course, the above steps can also be achieved using cutting tools and heat sealing tools respectively.

[0093] Furthermore, such as Figure 11 As shown, a first lifting slide rail 508 extending vertically is provided above the first conveyor belt 103 and on at least one side of the fourth pneumatic lifting rod 506. The first lifting slide rail 508 is mounted on a bracket. The actuating end of the fourth pneumatic lifting rod 506 is connected to a first lifting block 507. The first lifting block 507 is slidably connected to the first lifting slide rail 508 to guide and limit the actuating end of the fourth pneumatic lifting rod 506.

[0094] Furthermore, such as Figure 11As shown, the filter membrane cutting and sealing station 5 also includes a filter membrane unwinding roller 502 and a filter membrane take-up roller 505. The starting end of the filter membrane 501 is wound on the filter membrane unwinding roller 502, and the tail end of the filter membrane 501 is wound on the filter membrane take-up roller 505. At least a portion of the filter membrane 501 located between the filter membrane unwinding roller 502 and the filter membrane take-up roller 505 is spread horizontally above the first conveyor belt 103. The filter membrane unwinding roller 502 and the filter membrane take-up roller 505 can be respectively arranged on both sides of the first conveyor belt 103; of course, multiple filter membrane unwinding and winding rollers 503 and multiple filter membrane take-up and winding rollers 504 can also be arranged between the filter membrane unwinding roller 502 and the filter membrane take-up roller 505, with the filter membrane unwinding roller 502 and the filter membrane take-up roller 505 located on the same side of the first conveyor belt 103, and some of the filter membrane unwinding and winding rollers 503 located on one side of the first conveyor belt 103, while the other part... The filter membrane unwinding roller 503 is located on the other side of the first conveyor belt 103. A portion of the filter membrane winding rollers 504 are located on one side of the first conveyor belt 103, and a portion are located on the other side. This ensures that the filter membrane 501 located between the filter membrane unwinding roller 502 and the filter membrane winding roller 505 is wound onto the filter membrane unwinding roller 503 and / or the filter membrane winding roller 504, thereby causing at least a portion of the filter membrane 501 to unfold horizontally above the first conveyor belt 103. The number and position of the filter membrane unwinding rollers 503 and the filter membrane winding rollers 504 can be set and adjusted according to the positions of the filter membrane unwinding roller 502 and the filter membrane winding roller 505, ensuring that at least a portion of the filter membrane 501 unfolds horizontally above the first conveyor belt 103.

[0095] The function of the filter membrane cutting and sealing station 5 is to cut the filter membrane 501 into the required shape online (forming a filter membrane 4') and initially weld it to the top of the pressure valve core 5' inside the cup body 1'. This will filter the residue when the contents of the tea capsule are brewed. The initial welding will also fix the filter membrane 5' in the cup body 1' and prevent it from falling off during the transport of the first conveyor belt 103.

[0096] The filter membrane 501 may be, but is not limited to, a roll of nonwoven fabric or filter paper.

[0097] In this invention, the working principle of the filter membrane cutting and sealing station 5 is as follows:

[0098] 1. The cup body 1', consisting of a pressure valve core 5' and a pressure regulating bead 6', arrives at the filter membrane cutting and sealing station 5, and at least a portion of the filter membrane 501 is horizontally unfolded above the first conveyor belt 103. 2. At this time, the actuating end of the fourth pneumatic lifting rod 506 carries the integrated cutting and sealing blade downwards, punching the filter membrane 501 unfolded above the first conveyor belt 103. The punched-off filter membrane 4' continues to move downwards with the actuating end of the fourth pneumatic lifting rod 506 to the welding position inside the cup body 1', where the filter membrane 4' is initially heat-welded to the top of the pressure valve core 5'. Since the integrated cutting and sealing blade has both a punching head and a heating metal block, the punched-off filter membrane 4' can be initially heat-welded simultaneously. 3. After the cutting and sealing operation is completed, the actuating end of the fourth pneumatic lifting rod 506 rises above the cup body 1'. 4. The cup body 1' after welding the filter membrane 4' is transported to the next station by the first conveyor belt 103.

[0099] In the filter membrane cutting and sealing station 5, the remaining filter membrane 501 from the punching process is wound onto the filter membrane take-up roller 505 for recycling. The filter membrane unwinding roller 502 and the filter membrane take-up roller 505 can be powered by motors respectively.

[0100] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 12 As shown, the filter membrane visual inspection station 6 includes a first image acquisition device 601 and a first conveyor belt 103 for transporting the cup 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup handling station 1. The first image acquisition device 601 is located above the first conveyor belt 103, and the image acquisition end of the first image acquisition device 601 faces the location of the filter membrane 4' inside the cup 1'. The first image acquisition device 601 may be, but is not limited to, a camera.

[0101] In this invention, the working principle of the filter membrane visual inspection station 6 is as follows: the cup body 1' after welding the filter membrane 4' is conveyed to the filter membrane visual inspection station 6 via the first conveyor belt 103. The first image acquisition device 601 acquires images to detect whether the filter membrane 4' is welded and whether the welding position of the filter membrane 4' is misaligned. After the inspection is passed, the cup body 1' is sent to the next station by the first conveyor belt 103. If the inspection fails, the cup body 1' will not work at any subsequent station. The unqualified cup body 1' will fall into the waste rejection port 1001 and be recycled when the assembly section 100 ends with the first conveyor belt 103.

[0102] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 13As shown, the ultrasonic welding station 7 for the filter membrane includes a fifth pneumatic lifting rod 701, an ultrasonic welding head 702, and a first conveyor belt 103 for transporting the cup 1' to the next station. This first conveyor belt 103 is the same as the first conveyor belt 103 in the cup handling station 1. The fifth pneumatic lifting rod 701 is located above the first conveyor belt 103, and the actuating end of the fifth pneumatic lifting rod 701 extends downward in the vertical direction and is connected to the ultrasonic welding head 702.

[0103] Furthermore, such as Figure 13 As shown, the ultrasonic welding station 7 for the filter membrane also includes a mounting frame 703, which is located above the first conveyor belt 103. A fifth pneumatic lifting rod 701 is mounted on the mounting frame 703, and the actuating end of the fifth pneumatic lifting rod 701 is connected to the top of the mounting frame 705. An ultrasonic welding head 702 is located at the bottom of the mounting frame 705. A second lifting slide rail 704 extending vertically is provided on the mounting frame 703. The mounting frame 705 is slidably connected to the second lifting slide rail 704. The second lifting slide rail 704 limits and guides the movement of the mounting frame 705, ensuring that the ultrasonic welding head 702 can move down and be aligned with the position of the filter membrane 4' for ultrasonic welding.

[0104] Since the filter membrane 4' is generally made of PP non-woven fabric, hot welding would be too hot and time-consuming, easily damaging the cup body 1' and other internal components. Therefore, ultrasonic welding is used (ultrasonic welding uses high-frequency vibration waves transmitted to the surfaces of two objects to be welded; under pressure, the surfaces rub against each other to form a fusion between molecular layers, thus achieving welding between the two objects). In the upstream process, hot welding has already been used to perform preliminary welding on the filter membrane 4'. The ultrasonic welding at the filter membrane ultrasonic welding station 7 is a secondary welding of the filter membrane 4', the purpose of which is to firmly weld the filter membrane 4' to the predetermined position inside the cup body 1'.

[0105] In this invention, the working principle of the ultrasonic welding station 7 for the filter membrane is as follows:

[0106] 1. After the filter membrane 4' is initially heat-sealed and welded, the cup body 1' is transported to the ultrasonic welding station 7. At this time, the fifth pneumatic lifting rod 701 drives the ultrasonic welding head 702 to move down to contact the filter membrane 4' inside the cup body 1'. The pneumatic ultrasonic welding head 702 welds the filter membrane 4' firmly to the cup body 1' and it is located on top of the pressure valve core 5', so that the filter membrane 4' can cover the pressure valve core 5'. 3. After ultrasonic welding, the cup body 1' is sent to the next station by the first conveyor belt.

[0107] In an optional embodiment of the present invention, such as Figures 3 to 6As shown, the bottom welding section 200 includes a first cup-turning station 8, a lower cover film cutting and sealing station 9, a lower cover film visual inspection station 10, and a lower cover film secondary welding station 11 arranged in sequence.

[0108] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 14 As shown, the first cup-flipping station 8 includes a sixth pneumatic lifting rod 806, a third gripper 802, a fourth gripper 803, a first cup-flipping gripper 804, and a second conveyor belt 801 for transporting the cup 1' to the next station. The first cup-flipping gripper 804 is located above the second conveyor belt 801 and is connected to the output shaft of the first cup-flipping motor 809 to drive the first cup-flipping gripper 804 to rotate at least 180°. Multiple second cup-placement slots 8011 are spaced apart along the extension direction of the second conveyor belt 801. A first transfer trough 805 is spaced apart between the second conveyor belt 801 and the first conveyor belt 103 in the assembly section 100. The actuating end of the sixth pneumatic lifting rod 806 extends vertically downward and is connected to the middle of the first horizontal connecting plate 807. The third gripper 802 and the fourth gripper 803 are respectively connected to the bottom ends of the first horizontal connecting plate 807. The sixth pneumatic lifting rod 806 is set on the first translation track 808 to drive the sixth pneumatic lifting rod 806 to move between the filter membrane ultrasonic welding station 7 and the second conveyor belt 801. The third gripper 802 is used to transfer the cup 1' in the filter membrane ultrasonic welding station 7 to the first transfer trough 805. The fourth gripper 803 is used to transfer the cup 1' in the first transfer trough 805 to the first cup flipping gripper 804. The first cup flipping gripper 804 is driven by the first cup flipping motor 809 to flip 180°, thereby flipping the cup 1' to the bottom surface facing up and placing it in the second cup placement trough 8011 on the second conveyor belt 801.

[0109] The third gripper 802 and the fourth gripper 803 can be pneumatic grippers, which open and close via air valves to grip the cup 1'. Of course, the third gripper 802 and the fourth gripper 803 can also adopt other existing gripping structures, as long as they can achieve the gripping and releasing action of the cup 1'. The specific structure of the third gripper 802 and the fourth gripper 803 is not limited here. In addition, the first cup-flipping gripper 804 itself can also be a pneumatic gripper, which opens and closes via air valves to grip the cup 1'. The flipping of the cup 1' is achieved by the first cup-flipping motor 809 driving the first cup-flipping gripper 804.

[0110] The sixth pneumatic lifting rod 806 is slidably mounted on the first translation track 808 via a slider. The first translation track 808 is powered by a motor, enabling its operation and thus moving the sixth pneumatic lifting rod 806. The structure and driving method of the first translation track 808 in this invention can be varied and are not limited here, as long as they can move the sixth pneumatic lifting rod 806 horizontally between the second conveyor belt 801 and the first conveyor belt 103 in the assembly section 100.

[0111] In this invention, the working principle of the first cup-turning station 8 is as follows:

[0112] The first cup-flipping station 8 serves as a bridge connecting the assembly section 100 and the welding section 200. First, when the cup 1' is transported by the first conveyor belt 103 to the end of the filter membrane ultrasonic welding station 7, the sixth pneumatic lifting rod 806 moves towards the end of the filter membrane ultrasonic welding station 7. The actuating end of the sixth pneumatic lifting rod 806 moves downwards, causing the third gripper 802 to clamp the cup 1' located on the first conveyor belt 103. At this time, the fourth gripper 803 is precisely located at the first transfer trough 805 and clamps the cup 1' already located within the first transfer trough 805. Second, at this time, the actuating end of the sixth pneumatic lifting rod 806 moves upwards, and the sixth pneumatic lifting rod 806 moves along the first translation track 808 towards the second conveyor belt 801. When the fourth gripper 803 stops above the first cup-flipping gripper 804, the third gripper 802 is precisely above the first transfer trough 805. Third, the movement of the sixth pneumatic lifting rod 806... The end moves downward again until the third gripper 802 moves down to a lower position above the first transfer groove 805 and the fourth gripper 803 moves down to a lower position above the first cup-flipping gripper 804. Then, the third gripper 802 and the fourth gripper 803 are opened. The cup 1' in the third gripper 802 falls into the first transfer groove 805, and the cup 1' in the fourth gripper 803 falls into the first cup-flipping gripper 804. The third gripper 802 and the fourth gripper 803, having completed the cup-grabbing and transporting task, move back to their original positions with the sixth pneumatic lifting rod 806. Fourth, the cup 1' that falls into the first cup-flipping gripper 804 is clamped by the first cup-flipping gripper 804 and rotates 180° under the drive of the first cup-flipping motor 809. Then, the first cup-flipping gripper 804 opens so that the flipped cup 1' is placed upside down in the second cup-placement groove 8011 on the second conveyor belt 801. After the flipping and inverting operation is completed, the first flipping cup gripper 804 rotates 180° in the opposite direction to restore its original state. After the flipping operation of the first flipping cup gripper 804, the cup body 1' is inverted compared to the previous section. This operation facilitates the subsequent welding of the lower cover diaphragm 7' to the bottom of the cup body 1'.

[0113] In this invention, the first transfer groove 805 serves two purposes: firstly, it shortens the horizontal travel of the sixth pneumatic lifting rod 806, avoiding the problem of inaccurate placement of the cup 1' due to its long travel distance; secondly, compared to directly grabbing the cup 1' from the first cup placement groove 109 moving on the first conveyor belt 103 and placing it into the first cup flipping gripper 804, grabbing the cup 1' from the first transfer groove 805 is more accurate. Therefore, the first transfer groove 805 can also play a role in positioning the cup 1'.

[0114] In an optional embodiment of the invention, such as Figures 3 to 6 , Figure 15 As shown, the lower cover film cutting and sealing station 9 includes a seventh pneumatic lifting rod 906 and a second conveyor belt 801 for transporting the cup 1' to the next station. This second conveyor belt 801 is the same as the second conveyor belt 801 in the first cup-turning station 8. The seventh pneumatic lifting rod 906 is located above the second conveyor belt 801, and the actuating end of the seventh pneumatic lifting rod 906 extends downward in the vertical direction. A cutting and sealing integrated cutter is provided at the actuating end of the seventh pneumatic lifting rod 906. The cutting and sealing integrated cutter can be used to cut the lower cover film 901 located above the second conveyor belt 801 and weld it to the bottom outlet of the cup 1'. The cutting and sealing integrated cutter in this station works on the same principle as the cutting and sealing integrated cutter used in the filter membrane cutting and sealing station 5, and will not be described in detail here.

[0115] Furthermore, such as Figure 15 As shown, a third lifting slide rail 908 extending vertically is provided above the second conveyor belt 801 and on at least one side of the seventh pneumatic lifting rod 906. The third lifting slide rail 908 is mounted on a bracket. The actuating end of the seventh pneumatic lifting rod 906 is connected to a second lifting block 907. The second lifting block 907 is slidably connected to the third lifting slide rail 908 to guide and limit the actuating end of the seventh pneumatic lifting rod 906.

[0116] Furthermore, such as Figure 15 As shown, the lower cover film cutting and sealing station 9 also includes a lower cover film unwinding roller 902 and a lower cover film take-up roller 905. The starting end of the lower cover film 901 is wound around the lower cover film unwinding roller 902, and the tail end of the lower cover film 901 is wound around the lower cover film take-up roller 905. At least a portion of the lower cover film 901 located between the lower cover film unwinding roller 902 and the lower cover film take-up roller 905 is unfolded horizontally above the second conveyor belt 801. The arrangement and unfolding method of the lower cover film 901 in the lower cover film cutting and sealing station 9 can be the same as the arrangement and unfolding method of the filter membrane 501 in the filter membrane cutting and sealing station 5, and will not be described again here.

[0117] The function of the lower cover film cutting and sealing station 9 is to cut the lower cover film 901 into the required shape online (forming the lower cover film 7') and initially weld it to the bottom outlet of the cup body 1' to seal the bottom outlet of the cup body 1' so that a closed chamber can be formed inside the cup body 1'; the initial welding can initially fix the lower cover film 7' to the bottom outlet of the cup body 1' to prevent it from falling off during the transportation of the second conveyor belt 801.

[0118] The lower cover film 901 can be, but is not limited to, a roll of aluminum-plastic composite film.

[0119] In this invention, the working principle of the lower cover film cutting and sealing station 9 is as follows:

[0120] After being flipped, the cup body 1' arrives at the lower cover film cutting and sealing station 9, and at least part of the lower cover film 901 is unfolded horizontally above the second conveyor belt 801. Second, at this time, the actuating end of the seventh pneumatic lifting rod 906 moves downwards with the integrated cutting and sealing blade, and punches the lower cover film 901 unfolded above the second conveyor belt 801. The punched-off lower cover film 7' continues to move downwards with the actuating end of the seventh pneumatic lifting rod 906 to the bottom outlet of the cup body 1', where the lower cover film 7' is initially heat-welded to the bottom of the cup body 1'. Since the integrated cutting and sealing blade has both a punching head and a heating metal block, the punched-off lower cover film 7' can be initially heat-welded simultaneously with the punching. Third, after the cutting and sealing operation is completed, the actuating end of the seventh pneumatic lifting rod 906 rises. Fourth, the cup body 1' after welding the lower cover film 7' is transported to the next station by the second conveyor belt 801.

[0121] In the lower cover film cutting and sealing station 9, the remaining lower cover film 901 from the punching process is wound onto the lower cover film take-up roller 905 for recycling. The lower cover film unwinding roller 902 and the lower cover film take-up roller 905 can be powered by motors respectively.

[0122] In an optional embodiment of the invention, such as Figures 3 to 6 , Figure 16 As shown, the visual inspection station 10 for the lower cover film includes a second image acquisition device 1002 and a second conveyor belt 801 for transporting the cup 1' to the next station. This second conveyor belt 801 is the same as the second conveyor belt 801 in the first cup-turning station 8. The second image acquisition device 1002 is located above the second conveyor belt 801, and the image acquisition end of the second image acquisition device 1002 faces the position of the lower cover film 7' at the bottom of the cup 1'. The second image acquisition device 1002 may be, but is not limited to, a camera.

[0123] In this invention, the working principle of the visual inspection station 10 for the lower cover film is as follows:

[0124] After the lower cover diaphragm 7' is welded, the cup body 1' is conveyed to the lower cover diaphragm visual inspection station 10 via the second conveyor belt 801. The second image acquisition device 1002 acquires images to detect whether the lower cover diaphragm 7' is welded and whether the welding position of the lower cover diaphragm 7' is misaligned. If the inspection is passed, the cup body 1' is sent to the next station by the second conveyor belt 801. If the inspection fails, the cup body 1' will not be used at any subsequent station. The unqualified cup body 1' will fall into the corresponding waste rejection port at the end of the welding bottom section 200 as the second conveyor belt 801 is used.

[0125] In an optional embodiment of the invention, such as Figures 3 to 6 , Figure 17 As shown, the secondary welding station 11 for the lower cover film includes an eighth pneumatic lifting rod 1101, a lower cover film welding head 1102, and a second conveyor belt 801 for transporting the cup body 1' to the next station. This second conveyor belt 801 is the same as the second conveyor belt 801 in the first cup-turning station 8. The eighth pneumatic lifting rod 1101 is located above the second conveyor belt 801 and can be mounted on a bracket. The actuating end of the eighth pneumatic lifting rod 1101 extends vertically downward and is connected to the lower cover film welding head 1102. The lower cover film welding head 1102 is directly or indirectly connected to a first heating rod, which heats the lower cover film welding head 1102 to reach the welding temperature. The actuating end of the eighth pneumatic lifting rod 1101 can move the lower cover film welding head 1102 downward to abut against the lower cover film 7' initially welded to the cup body 1' on the second conveyor belt 801, so as to perform secondary welding on the lower cover film 7'.

[0126] Furthermore, such as Figure 17As shown, the actuating end of the eighth pneumatic lifting rod 1101 is connected to a first upper guide plate 1105. A first lower guide plate 1104 is located below the first upper guide plate 1105. Both the first upper guide plate 1105 and the first lower guide plate 1104 are flat plates arranged horizontally. Multiple first guide columns 1106 are vertically arranged on the top of the first lower guide plate 1104. The bottom end of each first guide column 1106 is connected to the top of the first lower guide plate 1104. The top end of each first guide column 1106 slides downwards through the first upper guide plate 1105 and exits from the top of the first upper guide plate 1105. A first limiting nut 1108 is provided at the top of each first guide column 1106. The first upper guide plate 1104... 105 can move relative to the first guide lower plate 1104 and is guided and limited by the first guide column 1106; a first spring 1107 is sleeved on the first guide column 1106, and the two ends of the first spring 1107 can abut against the bottom of the first guide lower plate 1104 and the top of the first guide upper plate 1105 respectively to play a buffering role; a first buffer seat 1103 is provided at the bottom of the first guide lower plate 1104, and the lower cover film welding head 1102 is provided at the bottom of the first buffer seat 1103. The first heating rod can be directly connected to the lower cover film welding head 1102, or it can be connected to the first buffer seat 1103 and / or the first guide lower plate 1104 to realize indirect heating of the lower cover film welding head 1102.

[0127] Since the lower cover diaphragm 7' is made of an aluminum-plastic composite membrane, and its outermost layer is a PE layer that is relatively easy to heat weld, heat welding is suitable for the lower cover diaphragm 7' instead of ultrasonic welding; in addition, heat welding has the advantage of cost saving compared to ultrasonic welding. The lower cover diaphragm 7' has been initially welded at the lower cover diaphragm cutting and sealing station 9, and the secondary welding at the lower cover diaphragm secondary welding station 11 is to weld the lower cover diaphragm 7' to the edge of the water outlet at the bottom of the cup body 1' more firmly. For a firm weld, the secondary welding requires a higher welding temperature than the initial welding. Therefore, the lower cover diaphragm secondary welding station 11 uses a higher-power first heating rod to heat the lower cover diaphragm welding head 1102.

[0128] In this invention, the working principle of the secondary welding station 11 for the lower cover film is as follows:

[0129] 1. After visual inspection, the cup body 1' is transported by the second conveyor belt 801 to the secondary welding station 11 for the lower cover film; 2. The actuating end of the eighth pneumatic lifting rod 1101 moves downward, and the first buffer seat 1103 moves downward accordingly. When the secondary welding station 11 for the lower cover film moves downward to the point where the welding head 1102 of the lower cover film contacts the lower cover film 7' at the bottom of the cup body 1', the actuating end of the eighth pneumatic lifting rod 1101 continues to move downward; 3. At this time, as the eighth pneumatic lifting rod 1101 moves downward, the first guide upper plate 1105 moves downward along the first guide column 1106 and compresses the first spring 1107. The first spring 1107 transmits the pressure to the first guide lower plate 1104, and then through... The first guide plate 1104 transmits the material to the first buffer seat 1103 and the lower cover film welding head 1102, so that the lower cover film welding head 1102 presses tightly onto the lower cover film 7' for welding (at this time, the bottom surface of the first buffer seat 1103 does not contact the second conveyor belt 801); Fourth, after the secondary welding is completed, the actuating end of the eighth pneumatic lifting rod 1101 moves upward, the first guide plate 1105 moves upward accordingly, the first spring 1107 returns to its original state, and the first guide plate 1104, the first buffer seat 1103 and the lower cover film welding head 1102 move upward together; Fifth, the second conveyor belt 801 transports the cup body 1' after the lower cover film 7' has completed the secondary welding to the next station.

[0130] In this invention, the first spring 1107 of the secondary welding station 11 of the lower cover film serves to buffer the impact force of the downward movement of the eighth pneumatic lifting rod 1101, so as not to cause the welding head 1102 of the lower cover film to collide violently with the cup body 1' and damage the cup body 1'.

[0131] In an optional embodiment of the present invention, such as Figures 3 to 6 As shown, the filling section 300 includes, in sequence, a second cup-turning station 12, a cup inspection station 13, a filling and pressing station 14, a secondary pressing station 15, a cap-fastening station 16, a cup cap visual inspection station 17, a cap film placement station 18, a cap film welding station 19, and a cap film visual inspection station 20. The secondary pressing station 15, cap-fastening station 16, cup cap visual inspection station 17, and cap film placement station 18 are all located in a nitrogen atmosphere.

[0132] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 18As shown, the second cup-flipping station 12 includes a ninth pneumatic lifting rod 1206, a fifth gripper 1202, a sixth gripper 1203, a second cup-flipping gripper 1204, and a third conveyor belt 1201 for transporting the cup 1' to the next station. The second cup-flipping gripper 1204 is located above the third conveyor belt 1201 and is connected to the output shaft of the second cup-flipping motor 1209 to drive the second cup-flipping gripper 1204 to rotate at least 180°. Multiple third cup-placement slots are spaced along the extension direction of the third conveyor belt 1201. A second transfer slot 1205 is spaced between the third conveyor belt 1201 and the second conveyor belt 801 in the welding bottom section 200. The actuating end of the ninth pneumatic lifting rod 1206 extends vertically downward and is connected to the middle of the second horizontal connecting plate 1207. The fifth gripper 1202 and the sixth gripper 1203 are respectively connected to the bottom ends of the second horizontal connecting plate 1207. The ninth pneumatic lifting rod 1206 is set on the second translation track 1208 to drive the ninth pneumatic lifting rod 1206 to move between the lower cover film secondary welding station 11 and the third conveyor belt 1201. The fifth gripper 1202 is used to transfer the cup 1' in the lower cover film secondary welding station 11 to the second transfer trough 1205. The sixth gripper 1203 is used to transfer the cup 1' in the second transfer trough 1205 to the second cup flipping gripper 1204. The second cup flipping gripper 1204 is driven by the second cup flipping motor 1209 to flip 180°, thereby flipping the cup 1' to the top facing up and placing it in the third cup placement trough on the third conveyor belt 1201.

[0133] The fifth gripper 1202 and the sixth gripper 1203 can be pneumatic grippers, which open and close via air valves to grip the cup 1'. Of course, the fifth gripper 1202 and the sixth gripper 1203 can also adopt other existing gripping structures, as long as they can achieve the gripping and releasing action of the cup 1'. The specific structure of the fifth gripper 1202 and the sixth gripper 1203 is not limited here. In addition, the second cup-flipping gripper 1204 itself can also be a pneumatic gripper, which opens and closes via air valves to grip the cup 1'. The flipping of the cup 1' is achieved by the second cup-flipping motor 1209 driving the second cup-flipping gripper 1204.

[0134] The ninth pneumatic lifting rod 1206 is slidably mounted on the second translation track 1208 via a slider. The second translation track 1208 is powered by a motor, enabling its operation and thus moving the ninth pneumatic lifting rod 1206. The structure and driving method of the second translation track 1208 can be varied and are not limited here, as long as they enable the ninth pneumatic lifting rod 1206 to move horizontally between the third conveyor belt 1201 and the second conveyor belt 801 in the welding bottom section 200.

[0135] In this invention, the working principle of the second cup-turning station 12 is as follows:

[0136] The second cup-turning station 12 serves as a bridge connecting the bottom welding section 200 and the filling section 300. 1. When the cup 1' is transported by the second conveyor belt 801 to the end of the secondary welding station 11 of the lower cover film, the ninth pneumatic lifting rod 1206 moves towards the end of the secondary welding station 11 of the lower cover film, and the fifth gripper 1202 clamps the cup 1' located on the second conveyor belt 801 by the downward movement of the actuating end of the ninth pneumatic lifting rod 1206. At this time, the sixth gripper 1203 is exactly located at the second transfer groove 1205 and clamps the cup 1' already located in the second transfer groove 1205; 2. At this time, the actuating end of the ninth pneumatic lifting rod 1206 moves upward, and the ninth pneumatic lifting rod 1206 moves along the second translation track 1208 towards the third conveyor belt 1201. When the sixth gripper 1203 moves to the top of the second cup-flipping gripper 1204 and stops, the fifth gripper 1202 moves to the top of the second transfer groove 1205; 3. The movement of the ninth pneumatic lifting rod 1206... The working end moves downwards again until the fifth gripper 1202 moves to a lower position above the second transfer groove 1205, and the sixth gripper 1203 moves to a lower position above the second cup-flipping gripper 1204. Then, the fifth gripper 1202 and the sixth gripper 1203 are opened. The cup 1' in the fifth gripper 1202 falls into the second transfer groove 1205, and the cup 1' in the sixth gripper 1203 falls into the second cup-flipping gripper 1204. In the process, the fifth gripper 1202 and the sixth gripper 1203, which have completed the task of grabbing and transporting the cup, move to their original positions along with the ninth pneumatic lifting rod 1206; fourth, the cup body 1' that falls into the second cup-flipping gripper 1204 is clamped by the second cup-flipping gripper 1204 and rotates 180° under the drive of the second cup-flipping motor 1209. Then, the second cup-flipping gripper 1204 opens so that the flipped cup body 1' is placed upright in the third cup placement slot on the third conveyor belt 1201. After completing the flipping and uprighting operation, the second cup-flipping gripper 1204 rotates 180° in the opposite direction to return to its original state. After the uprighting operation of the second cup-flipping gripper 1204, the cup body 1' is placed upright compared to the previous section. This operation facilitates the subsequent filling operation.

[0137] In this invention, the second transfer groove 1205 serves two purposes: firstly, it shortens the horizontal travel of the ninth pneumatic lifting rod 1206, avoiding the problem of inaccurate placement of the cup 1' due to its long travel distance and potential for misalignment; secondly, compared to directly grabbing the cup 1' from the second cup placement groove 8011 moving on the second conveyor belt 801 and placing it into the second cup flipping gripper 1204, grabbing the cup 1' from the second transfer groove 1205 is more precise, thus the second transfer groove 1205 can also serve to position the cup 1'.

[0138] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 19 As shown, the cup inspection station 13 includes a second laser sensor 1301 and a third conveyor belt 1201 for transporting the cup 1' to the next station. This third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The second laser sensor 1301 is located above the third conveyor belt 1201, and the detection end of the second laser sensor 1301 faces the location of the cup 1'.

[0139] In this invention, the working principle of the cup detection station 13 is as follows: The purpose of the cup detection station 13 is to detect the presence or absence of a cup 1', avoiding waste of contents caused by filling when there is no cup. When the cup 1' arrives below the cup detection station 13, the second laser sensor 1301 emits a laser beam to the location of the cup 1'. The beam is reflected by the cup 1' and returns to the second laser sensor 1301. The returned beam is received by the optical system inside the second laser sensor 1301 and converted into an electrical signal. The returned beam is different depending on whether there is a cup 1' or not, and the converted electrical signal is also different. Therefore, it can be determined whether there is a cup 1' in the third cup placement slot of the third conveyor belt 1201. The cup 1' that passes the detection is sent to the next station by the third conveyor belt 1201; if the detection fails, the cup 1' will not be used in subsequent stations.

[0140] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 20 As shown, the filling and pressing station 14 includes a first support plate 1405 that can move up and down, a pressing cover 1401, a feeding cylinder 1402, and a third conveyor belt 1201 for transporting the cup 1' to the next station. The third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The first support plate 1405 is located above the third conveyor belt 1201. The top of the pressure cover 1401 is connected to the bottom of the first support plate 1405. The pressure cover 1401 is a vertically arranged hollow rectangular box. A cavity is formed inside the pressure cover 1401. The bottom of the pressure cover 1401 has a discharge port that communicates with the cavity. The feeding cylinder 1402 has an outlet and an inlet. The feeding cylinder 1402 is connected to the pressure cover 1401, and the outlet of the feeding cylinder 1402 communicates with the cavity. The inlet of the feeding cylinder 1402 is provided with a discharge hopper 1403 for connecting to the weighing device 1408 (which may be, but is not limited to, a multi-head scale). The feeding cylinder 1402 is a cylindrical shape with a feeding channel inside. The feeding channel gradually slopes downward from away from the pressure cover 1401 to near the pressure cover 1401 so that the contents can smoothly enter the pressure cover 1401 through the feeding channel. The first support plate 1405 moves down to the bottom edge of the pressure cover 1401 and abuts against the edge of the third cup placement groove on the third conveyor belt 1201, so that the discharge port of the pressure cover 1401 is connected to the third cup placement groove.

[0141] Furthermore, such as Figure 20 As shown, the first support plate 1405 has an opening communicating with the chamber. A tenth pneumatic lifting rod 1404 is provided on the top of the first support plate 1405. The actuating end of the tenth pneumatic lifting rod 1404 extends into the chamber through the opening. The actuating end of the tenth pneumatic lifting rod 1404 is provided with a first pressing head adapted to the internal space of the cup body 1'. The actuating end of the tenth pneumatic lifting rod 1404 can drive the first pressing head to move downward to compact the contents filled in the cup body 1'. For example, the first pressing head can be used to press down the tea leaves after filling them, making the loose tea leaves compact, reducing the space occupied in the cup body 1', preventing tea leaves from overflowing the cup body 1', and facilitating subsequent operations such as capping and welding the top cover film 2'.

[0142] Furthermore, such as Figure 20 As shown, a support frame 1406 is provided on the side of the third conveyor belt 1201, and a lifting device 1407 is provided on the support frame 1406. The first support plate 1405 is connected to the moving end of the lifting device 1407 to drive the first support plate 1405 to move vertically. The lifting device 1407 may be, but is not limited to, a three-axis cylinder.

[0143] In this invention, the working principle of the filling and pressing station 14 is as follows:

[0144] 1. After the cup body 1' is welded with the lower cover diaphragm 7', it is flipped and placed upright, and then transported by the third conveyor belt 1201 to the filling and pressing station 14 for filling with contents (such as tea); 2. The lifting device 1407 drives the first support plate 1405 to move down to the bottom edge of the pressing cover 1401 and abut against the edge of the third cup placement slot on the third conveyor belt 1201, ensuring that the contents will not fall outside the cup body 1' when they are added. At this time, the raw material of the contents is weighed by the multi-head scale to a preset weight and then poured into the feeding cylinder 1402 through the discharge hopper 1403. It enters the chamber of the pressing cover 1401 through the feeding cylinder 1402 and finally falls into the cup body 1' through the discharge port of the pressing cover 1401. Third, the actuating end of the tenth pneumatic lifting rod 1404 drives the first pressing head to move downward, thereby compacting the contents filled into the cup 1'. At this time, the loose tea leaves are compressed. After compression, the actuating end of the tenth pneumatic lifting rod 1404 drives the first pressing head to move upward, and the filling and pressing are completed. Fourth, the lifting device 1407 can drive all the components connected to the first support plate 1405 to move upward, at least to disengage the pressing cover 1401 from the third conveyor belt 1201. The cup ' after filling and pressing is transported to the next station by the third conveyor belt 1201.

[0145] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 21As shown, the secondary pressing station 15 includes an eleventh pneumatic lifting rod 1501, a suction cover 1502, and a third conveyor belt 1201 for transporting the cup 1' to the next station. The third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup turning station 12. The eleventh pneumatic lifting rod 1501 is located above the third conveyor belt 1201. The eleventh pneumatic lifting rod 1501 is mounted on a bracket. The actuating end of the eleventh pneumatic lifting rod 1501 extends vertically downward and is connected to the top of the suction cover 1502. The bottom of the suction cover 1502 is provided with a second pressing head 1503 that is adapted to the internal space of the cup body 1'. The suction cover 1502 can be a rectangular box structure. The inside of the suction cover 1502 forms a suction chamber. The bottom of the suction cover 1502 is provided with a suction port that communicates with the suction chamber. The suction cover 1502 is provided with a suction pipe 1504 that communicates with the suction chamber. The suction pipe 1504 can be connected to a negative pressure device to form a negative pressure environment in the suction pipe 1504 and the suction chamber, which facilitates the suction and collection of residual material.

[0146] In this invention, the working principle of the secondary pressing station 15 is as follows:

[0147] 1. After filling and pressing, the cup body 1' is sent to the secondary pressing station 15. The purpose of the secondary pressing is to fully press the tea leaves, ensuring that they do not overflow from the cup body 1' or overlap the edge of the top opening of the cup body 1', thus avoiding affecting subsequent processes. 2. When the eleventh pneumatic lifting rod 1501 moves downward, the suction cover 1502 and the components connected to it move downward until the second pressing head 1503 contacts the tea leaves inside the cup body 1' for compression (this pressing operation can be performed several times according to a set value, depending on the different tea requirements). At this time, the top opening of the cup body 1' is pressed by the second pressing head 1503. The pressing head 1503 is blocked, so the suction can be activated to create a negative pressure environment in the suction pipe 1504 and the suction chamber. The remaining material on the outside of the cup body 1' and the edge of the cup body 1' is sucked into the suction chamber and discharged and recycled through the suction pipe 1504, completing the secondary pressing. The cup body 1' is sent to the next station by the third conveyor belt 1201. After the secondary pressing is completed, the eleventh pneumatic lifting rod 1501 drives the suction cover 1502 and the components connected to the suction cover 1502 to move upward together, separate from the third conveyor belt 1201, and prepare for the next secondary pressing operation of the cup body 1'.

[0148] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 22As shown, the lid-fastening station 16 includes a lid conveyor belt 1602 for transporting the lid 3', a receiving tray 1604, a third conveyor belt 1201 for transporting the cup body 1' to the next station, and a lid transfer trough 1610 spaced between the receiving tray 1604 and the third conveyor belt 1201. The third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The receiving plate 1604 is connected to the actuating end of the fifth pneumatic push-pull rod 1603. The actuating end of the fifth pneumatic push-pull rod 1603 extends horizontally and can move the receiving plate 1604 to a position where it connects with the discharge port of the cup lid conveyor belt 1602. The lid-closing station 16 also includes a twelfth pneumatic lifting rod 1605, a first pneumatic suction cup 1606, and a second pneumatic suction cup 1607. The twelfth pneumatic lifting rod 1605 is mounted on a bracket. The actuating end of the twelfth pneumatic lifting rod 1605 extends vertically downward and connects to the middle of the third horizontal connecting plate 1609. The first pneumatic suction cup 1607... The plate 1606 and the second pneumatic suction cup 1607 are respectively connected to the bottom ends of the third horizontal connecting plate 1609. The twelfth pneumatic lifting rod 1605 is set on the third translation track 1608 to drive the twelfth pneumatic lifting rod 1605 to move between the receiving plate 1604 and the third conveyor belt 1201. The first pneumatic suction cup 1606 is used to transfer the cup lid 3' in the receiving plate 1604 to the cup lid transfer groove 1610. The second pneumatic suction cup 1607 is used to transfer the cup lid 3' in the cup lid transfer groove 1610 to the third cup placement groove of the third conveyor belt 1201.

[0149] The first pneumatic suction cup 1606 and the second pneumatic suction cup 1607 can be connected to negative pressure pipelines to create negative pressure at the center of the pneumatic suction cups, so as to adsorb and transfer the cup lid 3'. Of course, the first pneumatic suction cup 1606 and the second pneumatic suction cup 1607 can also be replaced with other adsorption or clamping structures that can realize the rotation operation of the cup lid 3'.

[0150] The twelfth pneumatic lifting rod 1605 is slidably mounted on the third translational track 1608 via a slider. The third translational track 1608 is powered by a motor, enabling its operation and thus moving the twelfth pneumatic lifting rod 1605. The structure and driving method of the third translational track 1608 in this invention can be varied and are not limited here, as long as they can move the twelfth pneumatic lifting rod 1605 horizontally between the third conveyor belt 1201 and the receiving plate 1604.

[0151] Furthermore, such as Figure 22As shown, the capping station 16 also includes a cup cap sorting tray 1601, and the inlet of the cup cap conveyor belt 1602 is connected to the outlet of the cup cap sorting tray 1601. The cup cap sorting tray 1601 can adopt an existing sorting tray structure, and the specific structure of the cup cap sorting tray 1601 is not limited in this invention.

[0152] In this invention, the working principle of the cover-fastening station 16 is as follows:

[0153] First, after the cup body 1' is pressed twice, it is transported by the third conveyor belt 1201 to the capping station 16. The cup cap 3' is sorted into a single row from the cup cap sorting tray 1601 and then transported by the cup cap conveyor belt 1602 to the receiving tray 1604. Second, the fifth pneumatic push-pull rod 1603 pushes the receiving tray 1604 containing the cup cap 3' to directly below the first pneumatic suction cup 1606. Third, at this time, the actuating end of the twelfth pneumatic lifting rod 1605 drives the first pneumatic suction cup 1606 and the second pneumatic suction cup 1607 to move down synchronously. The first pneumatic suction cup 1606 can then adsorb the cap. The cup lid 3' is in the receiving tray 1604, and the second pneumatic suction cup 1607 is located at the cup lid transfer groove 1610. It can attract the cup lid 3' that has been placed in the cup lid transfer groove 1610. After the cup lid 3' in the receiving tray 1604 is sucked away, the actuating end of the fifth pneumatic push-pull rod 1603 can drive the receiving tray 1604 to return to its original position; Fourth, at this time, the actuating end of the twelfth pneumatic lifting rod 1605 moves upward, and the twelfth pneumatic lifting rod 1605 moves along the third translation track 1608 towards the third conveyor belt 1201. When the second pneumatic suction cup 1607 When the first pneumatic suction cup 1606 stops above the third conveyor belt 1201, it is just above the cup lid transfer groove 1610. Then, the actuating end of the twelfth pneumatic lifting rod 1605 moves downwards again until the first pneumatic suction cup 1606 is at a lower position above the cup lid transfer groove 1610, and the second pneumatic suction cup 1607 is at a lower position above the cup body 1' on the third conveyor belt 1201. Then, the first and second pneumatic suction cups 1606 and 1607 are controlled to release the suctioned cup lid 3'. The attached cup lid 3' falls into the cup lid transfer groove 1610 (afterwards, the cup lid transfer groove 1610 can be rotated by a certain angle through the steering structure set at the bottom of the cup lid transfer groove 1610 so that the orientation of the cup lid 3' in the cup lid transfer groove 1610 matches the orientation of the cup body 1' on the third conveyor belt 1201); VI. After the cup lid 3' is placed, the actuating end of the twelfth pneumatic lifting rod 1605 moves upward, and then the twelfth pneumatic lifting rod 1605 is reset on the third translation track 1608, and the cup body 1' with the lid on is transported to the next station by the third conveyor belt 1201.

[0154] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 23As shown, the cup lid visual inspection station 17 includes a third image acquisition device 1701 and a third conveyor belt 1201 for transporting the cup body 1' to the next station. This third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The third image acquisition device 1701 is located above the third conveyor belt 1201, with its image acquisition end facing the position of the cup lid 3' on top of the cup body 1'. The third image acquisition device 1701 can be, but is not limited to, a camera.

[0155] In this invention, the working principle of the cup lid visual inspection station 17 is as follows:

[0156] After the cup body 1' is capped, it is conveyed to the cup cap visual inspection station 17 via the third conveyor belt 1201. The third image acquisition device 1701 acquires images to detect whether the top of the cup body 1' is capped, whether the cap is misaligned, and whether there is tea residue on the outer circumference of the cup cap 3'. If the inspection is passed, the cup body 1' is sent to the next station by the third conveyor belt 1201; if the inspection is failed, the subsequent processes at this station will not work for this capsule cup, and the unqualified cup body 1' will fall into the corresponding waste rejection port at the end of the filling section 300 as the third conveyor belt 1201 is conveyed.

[0157] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 24 As shown, the top cover film placement station 18 includes a film placement cylinder 1801 and a third conveyor belt 1201 for transporting the cup body 1' to the next station. The third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup flipping station 12. A membrane placement cylinder 1801 is located above the third conveyor belt 1201. The membrane placement cylinder 1801 is a cylindrical shape with an open bottom and stores multiple stacked top-cover membranes 2'. A third pneumatic suction cup 1802, which can move vertically and rotate from the bottom opening of the membrane placement cylinder 1801 to the third conveyor belt 1201, is positioned between the bottom opening of the membrane placement cylinder 1801 and the third conveyor belt 1201. The third pneumatic suction cup 1802 is used to adsorb the top-cover membranes 2' located at the bottom opening of the membrane placement cylinder 1801. The third pneumatic suction cup 1802 rotates and moves downwards to place the adsorbed top-cover membranes 2' on top of the cup body 1'. The third pneumatic suction cup 1802 can be connected to a negative pressure pipeline to adsorb the top-cover membranes 2'.

[0158] Furthermore, such as Figure 24As shown, a control box 1805 is provided on one side of the third conveyor belt 1201. A second support plate 1804 extending upwards from the top of the control box 1805 is provided. A diaphragm placement cylinder 1801 is located on the top of the second support plate 1804, and the second support plate 1804 is provided with a through hole that communicates with the bottom opening of the diaphragm placement cylinder 1801.

[0159] Furthermore, such as Figure 24 As shown, the control box 1805 has an opening facing the third conveyor belt 1201. A drive device is installed inside the control box 1805 and is connected to a position adjustment shaft 1803. The position adjustment shaft 1803 extends from the opening in the control box 1805, and a third pneumatic suction cup 1802 is mounted on the position adjustment shaft 1803 so that the third pneumatic suction cup 1802 is vertically positioned between the bottom opening of the diaphragm placement cylinder 1801 and the third conveyor belt 1201. The drive device can at least drive the position adjustment shaft 1803 to move vertically and can rotate circumferentially along the position adjustment shaft 1803. The drive device can consist of a drive motor and a vertically mounted track. The drive motor is slidably mounted on the track, and its output shaft extends horizontally and is connected to the position adjustment shaft 1803. Thus, the drive motor can drive the position adjustment shaft 1803 to rotate, and the movement of the drive motor on the track can drive the position adjustment shaft 1803 to move vertically. The present invention does not limit the specific structure of the driving device. Any structure that can drive the position adjustment shaft 1803 to move vertically and can rotate circumferentially along the position adjustment shaft 1803 can be used in the present invention.

[0160] Furthermore, such as Figure 24 As shown, two silicone shielding curtains 1806 are installed at the opening on the control box 1805. The two silicone shielding curtains 1806 are sealed and overlapped. The position adjustment shaft 1803 extends out of the control box 1805 from the overlap between the two silicone shielding curtains 1806 and can move up and down along the overlap between the two silicone shielding curtains 1806. Since this workstation is in a nitrogen atmosphere, the silicone shielding curtains 1806 serve to prevent nitrogen leakage.

[0161] In this invention, the working principle of the upper cover film placement station 18 is as follows:

[0162] 1. After the cup body 1' has been inspected and the lid is closed, it is transported by the third conveyor belt 1201 to the lid film placement station 18. The lid film 2' is sheet-shaped, not a continuous roll film, and is neatly stacked in the film placement cylinder 1801. 2. The drive device rotates the position adjustment shaft 1803 180°, causing the third pneumatic suction cup 1802 to change from vertically downward to vertically upward. Then, the drive device moves the position adjustment shaft 1803 upward until the third pneumatic suction cup 1802 contacts the lid film 2' located at the bottom opening of the film placement cylinder 1801 and performs... Adsorption; Third, the drive device drives the position adjustment shaft 1803 to reverse so that the third pneumatic suction cup 1802 changes from vertical upward to vertical downward. Then, the drive device drives the position adjustment shaft 1803 to move down to a lower position above the cup body 1' on the third conveyor belt 1201. At this time, the negative pressure provided to the third pneumatic suction cup 1802 is stopped, and the upper cover diaphragm 2' detaches from the third pneumatic suction cup 1802 and falls to the top of the cup body 1', completing the placement of the upper cover diaphragm 2'; Fourth, the cup body 1' is transported to the next station by the third conveyor belt 1201.

[0163] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 25 As shown, the upper cover film welding station 19 includes a thirteenth pneumatic lifting rod 1901, an upper cover film welding head 1902, and a third conveyor belt 1201 for transporting the cup to the next station. This third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The thirteenth pneumatic lifting rod 1901 is located above the third conveyor belt 1201. The thirteenth pneumatic lifting rod 1901 can be installed on a bracket. The actuating end of the thirteenth pneumatic lifting rod 1901 extends vertically downward and is connected to the upper cover film welding head 1902. The upper cover film welding head 1902 is directly or indirectly connected to the second heating rod. The upper cover film welding head 1902 is heated by the second heating rod to reach the welding temperature. The actuating end of the thirteenth pneumatic lifting rod 1901 can drive the upper cover film welding head 1902 to move down to abut against the upper cover film 2' on the cup body 1' on the third conveyor belt 1201 to weld the upper cover film 2'.

[0164] Furthermore, such as Figure 25As shown, the actuating end of the thirteenth pneumatic lifting rod 1901 is connected to a second upper guide plate 1905. A second lower guide plate 1904 is located below the second upper guide plate 1905. Both the second upper guide plate 1905 and the second lower guide plate 1904 are flat plates arranged horizontally. Multiple second guide columns 1906 are vertically arranged on the top of the second lower guide plate 1904. The bottom end of each second guide column 1906 is connected to the top of the second lower guide plate 1904. The top end of each second guide column 1906 slides downwards through the second upper guide plate 1905 and exits from the top of the second upper guide plate 1905. A second limiting nut 1908 is located at the top of each second guide column 1906. The second guide plate 1905 and the second guide lower plate 1904 can move relative to each other and are guided and limited by the second guide column 1906. The second guide column 1906 is fitted with a second spring 1907. The two ends of the second spring 1907 can abut against the bottom of the second guide lower plate 1904 and the top of the second guide upper plate 1905 respectively to play a buffering role. The bottom of the second guide lower plate 1904 is provided with a second buffer seat 1903. The upper cover film welding head 1902 is located at the bottom of the second buffer seat 1903. The second heating rod can be directly connected to the upper cover film welding head 1902, or it can be connected to the second buffer seat 1903 and / or the second guide lower plate 1904 to realize indirect heating of the upper cover film welding head 1902.

[0165] The bottom shape of the upper cover film welding head 1902 is adapted to the top opening of the cup body 1'. The upper cover film 2' can be thermally welded to the edge of the top opening of the cup body 1' by heating the upper cover film welding head 1902 with the second heating rod.

[0166] In this invention, the working principle of the upper cover film welding station 19 is as follows:

[0167] 1. The actuating end of the thirteenth pneumatic lifting rod 1901 moves downward, and the second buffer seat 1903 moves downward accordingly. When the second buffer seat 1903 moves downward until the upper cover film welding head 1902 contacts the upper cover film 2' at the top of the cup body 1', the actuating end of the thirteenth pneumatic lifting rod 1901 continues to move downward; 3. At this time, as the thirteenth pneumatic lifting rod 1901 moves downward, the second guide upper plate 1905 moves downward along the second guide column 1906 and compresses the second spring 1907. The second spring 1907 transmits the pressure to the second guide lower plate 1904, and then through the second guide lower plate 1904 to the second buffer. The punch seat 1903 and the upper cover film welding head 1902 are pressed tightly onto the upper cover film 2' for welding (at this time, the bottom surface of the second buffer seat 1903 does not contact the third conveyor belt 1201); Fourth, after welding is completed, the actuating end of the thirteenth pneumatic lifting rod 1901 moves upward, the second guide upper plate 1905 moves upward accordingly, the second spring 1907 returns to its original state, and the second guide lower plate 1904, the second buffer seat 1903 and the upper cover film welding head 1902 move upward together; Fifth, the third conveyor belt 1201 transports the cup body 1' after the upper cover film 2' has been welded to the next station.

[0168] In this invention, the function of the second spring 1907 at the upper cover film welding station 19 is to buffer the impact force of the thirteenth pneumatic lifting rod 1901 moving downward, so as not to cause the upper cover film welding head 1902 to collide violently with the cup body 1' and damage the cup body 1'.

[0169] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 26 As shown, the visual inspection station 20 for the top cover film includes a fourth image acquisition device 2001 and a third conveyor belt 1201 for transporting the cup 1' to the next station. This third conveyor belt 1201 is the same as the third conveyor belt 1201 in the second cup-turning station 12. The fourth image acquisition device 2001 is located above the third conveyor belt 1201, with its image acquisition end facing the top cover film 2' on the cup 1'. The fourth image acquisition device 2001 can be, but is not limited to, a camera.

[0170] In this invention, the working principle of the visual inspection station 20 for the upper cover film is as follows:

[0171] The cup body 1' with the welded cap film 2' becomes a complete tea capsule, which, after passing inspection, becomes a finished tea capsule. The capsule with the welded cap film 2' passes through the cap film visual inspection station 20, where the fourth image acquisition device 2001 acquires images to detect whether the cap film 2' is misaligned or has weld damage. If the inspection is passed, the capsule is sent to the next station by the third conveyor belt 1201; if the inspection fails, subsequent processes at that station will not operate on that capsule cup, and the defective cup body 1' will fall into the corresponding waste rejection port at the end of the filling section 300 along with the third conveyor belt 1201 and be recycled.

[0172] In an optional embodiment of the present invention, such as Figures 3 to 6 , Figure 27 As shown, the third cup-turning station 21 includes a swing arm 2101 and a cup-turning plate 2104. The cup-turning plate 2104 is located at the inlet of the cup-out conveyor belt 2201. A cup-turning groove 2105 is provided on the top surface of the cup-turning plate 2104. The cup-turning groove 2105 is connected to the output shaft of the third cup-turning motor 2107. The third cup-turning motor 2107 can drive the cup-turning plate 2104 to rotate at least 180° towards the cup-out conveyor belt 2201, so that the cup-turning groove 2105 faces the top surface of the cup-out conveyor belt 2201. The swing arm 2101 is located between the cup-turning plate 2104 and the outlet of the third conveyor belt 1201. One end of the swing arm 2101 is connected to the output shaft of the swing arm motor 2106, and the other end of the swing arm 2101 is provided with a cup-turning groove 2105. There is a freely rotatable shaft 2102. The top end of the shaft 2102 is hinged to the swing arm 2101. The bottom end of the shaft 2102 is provided with a fourth pneumatic suction cup 2103. Since the shaft 2102 is hinged to the swing arm 2101, the shaft 2102 can still maintain a vertically downward posture when the swing arm 2101 is swinging. The swing arm 2101 can drive the fourth pneumatic suction cup 2103 to move between the outlet position of the third conveyor belt 1201 and the cup-flipping plate 2104, so as to transfer the cup 1' on the third conveyor belt 1201 to the cup-flipping groove 2105 through the fourth pneumatic suction cup 2103, and then flip the cup 1' upside down on the top surface of the cup-out conveyor belt 2201 by the cup-flipping plate 2104.

[0173] The function of the third cup-flipping station 21 is to transport the complete tea capsules, which have been filled in the filling section 300, to the cup-dispensing section 400. Simultaneously, it inverts the upright tea capsules onto the cup-dispensing conveyor belt 2201 of the cup-dispensing section 400, completing the cup dispensing process. The third cup-flipping station 21 serves as a link between the filling section 300 and the cup-dispensing section 400. The reason for inverting the tea capsules is based on their shape, which is wider at the bottom and narrower at the top. Inverted tea capsules are more stable during transportation and less prone to tipping over.

[0174] In this invention, the working principle of the third cup-turning station 21 is as follows:

[0175] 1. When the finished tea capsules reach the exit position of the third conveyor belt 1201, the swing arm 2101 rotates counterclockwise 180° under the drive of the swing arm motor 2106. The rotating shaft 2102, which is hinged to it, rotates synchronously 180° while maintaining a vertically downward position, causing the fourth pneumatic suction cup 2103 to contact the tea capsules at the exit position of the third conveyor belt 1201 (since the fourth pneumatic suction cup 2103 is hinged to the swing arm 2101 via the rotating shaft 2102, the fourth pneumatic suction cup 2103 can rotate relative to the swing arm 2101. Therefore, when the swing arm 2101 rotates, the fourth pneumatic suction cup 2103 can maintain a vertically downward posture due to gravity). 2. At this time, the fourth pneumatic suction cup 2103 adsorbs the tea capsules at the exit position of the third conveyor belt 1201. First, the tea capsule is lifted. Then, the swing arm 2101 rotates 180° clockwise, allowing the fourth pneumatic suction cup 2103 to carry the tea capsule to the top of the cup-turning plate 2104. During this process, due to the hinge relationship between the rotating shaft 2102 and the swing arm 2101, the fourth pneumatic suction cup 2103 can maintain a vertical downward posture due to gravity. Second, the fourth pneumatic suction cup 2103 is controlled to release the tea capsule, and the finished tea capsule falls into the cup-turning slot 2105. Third, the cup-turning plate 2104 rotates 180° clockwise under the drive of the third cup-turning motor 2107, inverting the finished tea capsule on the top surface of the cup-dispensing conveyor belt 2201. The inverted finished tea capsule is transported to the end of the cup-dispensing section 400 along with the cup-dispensing conveyor belt 2201 and falls into the collection container, completing the cup dispensing of the finished tea capsule.

[0176] The features and advantages of the integrated tea capsule assembly and filling production line of the present invention are as follows:

[0177] First, this integrated production line for tea capsule assembly and filling not only fills the gap in integrated production lines for tea capsules, but also improves the production efficiency of the production line by enhancing its integration and automation.

[0178] Second, this integrated production line for tea capsule assembly and filling, due to its integration, can eliminate intermediate steps and links in existing production lines, avoid risks to product cleanliness and hygiene indicators, and effectively improve product quality.

[0179] Third, this integrated production line for tea capsule assembly and filling is highly automated and suitable for large-scale production.

[0180] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. An integrated production line for tea capsule assembly and filling, characterized in that, The production line includes: The assembly section is used to assemble the pressure valve core, pressure regulating bead and filter membrane of the tea capsule into the cup body to form a semi-finished tea capsule. The bottom welding section is used at least to seal the lower cover membrane of the tea capsule to the bottom outlet of the tea capsule; The filling section is at least used to fill the contents into the cup of the tea capsule and seal the top cover film of the tea capsule to the top water inlet of the tea capsule to form a finished tea capsule; The cup-dispensing section is used at least to output the finished tea capsules; The assembly section, the welding section, the filling section, and the cup dispensing section are sequentially connected to form the integrated production line for tea capsule assembly and filling; The assembly section includes, in sequence, a cup-cleaning station, a pressure valve core installation station, a pressure regulating bead installation station, a pressure regulating bead inspection station, a filter membrane cutting and sealing station, a filter membrane visual inspection station, and a filter membrane ultrasonic welding station. The cup handling station includes a conveying channel, a first gripper, a second gripper, a first pneumatic push-pull rod, a first pneumatic lifting rod, and a first conveyor belt for transporting the cups to the next station. The first conveyor belt has a plurality of first cup placement slots spaced apart along its extension direction. A positioning slot is provided between the outlet of the conveying channel and the first conveyor belt. The outlet of the conveying channel, the positioning slot, and the first cup placement slots can be located on the same straight line. The first pneumatic push-pull rod is located above the first conveyor belt. The actuating end of the first pneumatic push-pull rod extends horizontally and is connected to the first pneumatic lifting rod. The actuating end of the first pneumatic lifting rod extends vertically downward and is connected to the first gripper and the second gripper respectively. The first gripper and the second gripper are arranged side by side. The first gripper is used to transfer the cup located at the outlet of the conveying channel to the positioning groove. The second gripper is used to transfer the cup located in the positioning groove to the first cup placement groove.

2. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The cup sorting station also includes a cup sorting tray, the outlet of which is connected to the inlet of the conveying channel, so as to sequentially convey the cups in the cup sorting tray into the conveying channel.

3. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The pressure valve core installation station includes a valve core feeding tray, a second pneumatic push-pull rod, a second pneumatic lifting rod, and a first conveyor belt for transporting the cup to the next station. The first conveyor belt has multiple first cup placement slots spaced apart along its extension direction. The valve core feeding tray is located on one side of the first conveyor belt and is used to sequentially transport the pressure valve core. The second pneumatic push-pull rod is located above the first conveyor belt. The actuating end of the second pneumatic push-pull rod extends horizontally and is connected to the second pneumatic lifting rod. The actuating end of the second pneumatic lifting rod extends vertically downward and is provided with a piercing head. The piercing head can be inserted into the central hole on the pressure valve core and is interference-fitted to the inner wall of the central hole.

4. The integrated production line for tea capsule assembly and filling as described in claim 3, characterized in that, The pressure valve core installation station includes a vertically arranged and vertically movable clamping lifting rod. The clamping lifting rod is located downstream of the second pneumatic push-pull rod and the second pneumatic lifting rod. The bottom end of the clamping lifting rod has a clamping head. The shape and size of the bottom surface of the clamping head are the same as the shape and size of the top end surface of the pressure valve core.

5. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The pressure regulating bead installation station includes a steel ball feeding tray, a slider, and a first conveyor belt for transporting the cup body to the next station. The steel ball feeding tray and the slider are both located on one side of the first conveyor belt. The outlet of the steel ball feeding tray is connected to a discharge channel. The discharge channel can only allow one pressure regulating bead to pass through at a time. The top of the slider has a discharge groove. The slider is connected to the actuating end of a third pneumatic push-pull rod. The third pneumatic push-pull rod drives the slider to move to the bottom of the discharge channel. The discharge groove can be vertically opposite to the outlet of the discharge channel. The pressure regulating bead in the discharge channel can fall into the discharge groove. The pressure regulating bead installation station also includes a fourth pneumatic push-pull rod and a third pneumatic lifting rod. The fourth pneumatic push-pull rod and the third pneumatic lifting rod are located above the first conveyor belt. The actuating end of the fourth pneumatic push-pull rod extends horizontally and is connected to the third pneumatic lifting rod. The actuating end of the third pneumatic lifting rod extends vertically downward and is provided with a suction nozzle. The suction nozzle is connected to a negative pressure pipeline. The third pneumatic push-pull rod drives the slider to move to a position close to the first conveyor belt. The actuating end of the fourth pneumatic push-pull rod can drive the third pneumatic lifting rod to move above the slider, and the suction nozzle is vertically opposite to the material drop trough. The actuating end of the third pneumatic lifting rod drives the suction nozzle to move downward and adsorb the pressure regulating bead in the material drop trough onto the bottom of the suction nozzle. The fourth pneumatic push-pull rod and the third pneumatic lifting rod cooperate to drive the suction nozzle to move above the first conveyor belt and then downward to the assembly position where the suction nozzle is inserted into the pressure valve core to assemble the pressure regulating bead.

6. The integrated production line for tea capsule assembly and filling as described in claim 5, characterized in that, The material discharge channel has an outlet with an end, and two support blocks are spaced apart below the end. The end and the two support blocks enclose a channel for the slider to move. When the slider moves within the channel, the top surface of the slider slides against the bottom surface of the end, and the two opposite sidewalls of the slider slide against the sidewalls of the corresponding support blocks.

7. The integrated tea capsule assembly and filling production line as described in claim 6, characterized in that, A flat plate is connected to the end, the flat plate extends toward the first conveyor belt, and an alignment through hole is provided on the flat plate. The slider can move to the bottom of the flat plate, and the material discharge groove is connected to the alignment through hole. The pressure regulating bead passes through the alignment through hole and is attracted by the suction nozzle.

8. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The pressure regulating bead detection station includes a first laser sensor and a first conveyor belt for transporting the cup to the next station. The first laser sensor is located above the first conveyor belt, and the detection end of the first laser sensor faces the position of the pressure regulating bead inside the cup.

9. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The filter membrane cutting and sealing station includes a fourth pneumatic lifting rod and a first conveyor belt for transporting the cup to the next station. The fourth pneumatic lifting rod is located above the first conveyor belt, and the actuating end of the fourth pneumatic lifting rod extends downward in the vertical direction and is provided with an integrated cutting and sealing cutter at the actuating end. The integrated cutting and sealing cutter can be used to cut the filter membrane located above the first conveyor belt and weld it into the cup body and is located at the top of the pressure valve core.

10. The integrated production line for tea capsule assembly and filling as described in claim 9, characterized in that, A first lifting slide rail extending vertically is provided above the first conveyor belt and on at least one side of the fourth pneumatic lifting rod. The actuating end of the fourth pneumatic lifting rod is connected to a first lifting block, and the first lifting block is slidably connected to the first lifting slide rail.

11. The integrated production line for tea capsule assembly and filling as described in claim 9, characterized in that, The filter membrane cutting and sealing station also includes a filter membrane unwinding roller and a filter membrane take-up roller. The starting end of the filter membrane is wound around the filter membrane unwinding roller, and the tail end of the filter membrane is wound around the filter membrane take-up roller. At least a portion of the filter membrane located between the filter membrane unwinding roller and the filter membrane take-up roller is laid out horizontally above the first conveyor belt.

12. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The filter membrane visual inspection station includes a first image acquisition device and a first conveyor belt for transporting the cup to the next station. The first image acquisition device is located above the first conveyor belt, and the image acquisition end of the first image acquisition device faces the location of the filter membrane inside the cup.

13. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The ultrasonic welding station for the filter membrane includes a fifth pneumatic lifting rod, an ultrasonic welding head, and a first conveyor belt for transporting the cup to the next station. The fifth pneumatic lifting rod is located above the first conveyor belt, and the actuating end of the fifth pneumatic lifting rod extends downward in the vertical direction and is connected to the ultrasonic welding head.

14. The integrated production line for tea capsule assembly and filling as described in claim 13, characterized in that, The ultrasonic welding station for the filter membrane also includes a mounting frame, which is located above the first conveyor belt. The fifth pneumatic lifting rod is mounted on the mounting frame, and the actuating end of the fifth pneumatic lifting rod is connected to the top of the mounting frame. The ultrasonic welding head is located at the bottom of the mounting frame. The mounting frame is provided with a second lifting slide rail extending vertically, and the mounting frame is slidably connected to the second lifting slide rail.

15. The integrated production line for tea capsule assembly and filling as described in claim 1, characterized in that, The bottom welding section includes a first cup-turning station, a lower cover film cutting and sealing station, a lower cover film visual inspection station, and a lower cover film secondary welding station arranged in sequence.

16. The integrated production line for tea capsule assembly and filling as described in claim 15, characterized in that, The first cup-flipping station includes a sixth pneumatic lifting rod, a third gripper, a fourth gripper, a first cup-flipping gripper, and a second conveyor belt for transporting the cup to the next station. The first cup-flipping gripper is located above the second conveyor belt and is connected to the output shaft of the first cup-flipping motor so as to drive the first cup-flipping gripper to rotate at least 180°. Multiple second cup-holding slots are spaced apart along the extension direction of the second conveyor belt. A first transfer slot is spaced between the second conveyor belt and the assembly section. The actuating end of the sixth pneumatic lifting rod extends vertically downward and is connected to the first horizontal connecting plate. The third and fourth grippers are respectively connected to the bottom ends of the first horizontal connecting plate. The sixth pneumatic lifting rod is set on the first translation track to drive the sixth pneumatic lifting rod to move between the ultrasonic welding station of the filter membrane and the second conveyor belt. The third gripper is used to transfer the cup body in the ultrasonic welding station of the filter membrane to the first transfer slot. The fourth gripper is used to transfer the cup body in the first transfer slot to the first cup-flipping gripper.

17. The integrated production line for tea capsule assembly and filling as described in claim 15, characterized in that, The lower cover film cutting and sealing station includes a seventh pneumatic lifting rod and a second conveyor belt for transporting the cup to the next station. The seventh pneumatic lifting rod is located above the second conveyor belt, and the actuating end of the seventh pneumatic lifting rod extends downward in the vertical direction and is provided with an integrated cutting and sealing cutter at the actuating end of the seventh pneumatic lifting rod. The integrated cutting and sealing cutter can be used to cut the lower cover film located above the second conveyor belt and weld it to the bottom opening of the cup.

18. The integrated production line for tea capsule assembly and filling as described in claim 17, characterized in that, A third lifting slide rail extending vertically is provided above the second conveyor belt and on at least one side of the seventh pneumatic lifting rod. The actuating end of the seventh pneumatic lifting rod is connected to a second lifting block, and the second lifting block is slidably connected to the third lifting slide rail.

19. The integrated production line for tea capsule assembly and filling as described in claim 17, characterized in that, The lower cover film cutting and sealing station also includes a lower cover film unwinding roller and a lower cover film take-up roller. The starting end of the lower cover film is wound around the lower cover film unwinding roller, and the tail end of the lower cover film is wound around the lower cover film take-up roller. At least a portion of the lower cover film located between the lower cover film unwinding roller and the lower cover film take-up roller is laid out horizontally above the second conveyor belt.

20. The integrated production line for tea capsule assembly and filling as described in claim 15, characterized in that, The visual inspection station for the lower cover film includes a second image acquisition device and a second conveyor belt for transporting the cup to the next station. The second image acquisition device is located above the second conveyor belt, and the image acquisition end of the second image acquisition device faces the position of the lower cover film at the bottom of the cup.

21. The integrated production line for tea capsule assembly and filling as described in claim 15, characterized in that, The secondary welding station for the lower cover film includes an eighth pneumatic lifting rod, a lower cover film welding head, and a second conveyor belt for transporting the cup body to the next station. The eighth pneumatic lifting rod is positioned above the second conveyor belt. The actuating end of the eighth pneumatic lifting rod extends vertically downward and is connected to the lower cover film welding head. The lower cover film welding head is directly or indirectly connected to a first heating rod. The actuating end of the eighth pneumatic lifting rod can drive the lower cover film welding head to move downward until it abuts against the lower cover film initially welded to the cup body on the second conveyor belt.

22. The integrated production line for tea capsule assembly and filling as described in claim 21, characterized in that, The actuating end of the eighth pneumatic lifting rod is connected to a first upper guide plate. A first lower guide plate is provided below the first upper guide plate. Multiple first guide columns are provided on the top of the first lower guide plate. The bottom end of the first guide column is connected to the top of the first lower guide plate. The top end of the first guide column slides through the first upper guide plate from top to bottom and exits from the top of the first upper guide plate. A first limiting nut is provided on the top end of the first guide column. A first spring is sleeved on the first guide column. The two ends of the first spring can abut against the bottom of the first lower guide plate and the top of the first upper guide plate, respectively. A first buffer seat is provided at the bottom of the first guide plate, the lower cover film welding head is provided at the bottom of the first buffer seat, and the first heating rod is connected to the first buffer seat and / or the first guide plate.

23. The integrated production line for tea capsule assembly and filling as described in claim 15, characterized in that, The filling section includes, in sequence, a second cup-turning station, a cup inspection station, a filling and pressing station, a secondary pressing station, a cap-fastening station, a cup cap visual inspection station, a cap film placement station, a cap film welding station, and a cap film visual inspection station.

24. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The second cup-flipping station includes a ninth pneumatic lifting rod, a fifth gripper, a sixth gripper, a second cup-flipping gripper, and a third conveyor belt for transporting the cup to the next station. The second cup-flipping gripper is located above the third conveyor belt and is connected to the output shaft of the second cup-flipping motor to drive the second cup-flipping gripper to rotate at least 180°. Multiple third cup-holding slots are spaced apart along the extension direction of the third conveyor belt. A second transfer slot is spaced apart between the third conveyor belt and the welding bottom section. The actuating end of the ninth pneumatic lifting rod extends vertically downward and is connected to the second horizontal connecting plate. The fifth and sixth grippers are respectively connected to the bottom ends of the second horizontal connecting plate. The ninth pneumatic lifting rod is set on the second translation track to drive the ninth pneumatic lifting rod to move between the secondary welding station of the lower cover film and the third conveyor belt. The fifth gripper is used to transfer the cup body in the secondary welding station of the lower cover film to the second transfer slot. The sixth gripper is used to transfer the cup body in the second transfer slot to the second cup-flipping gripper.

25. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The cup inspection station includes a second laser sensor and a third conveyor belt for transporting the cup to the next station. The second laser sensor is located above the third conveyor belt, and the detection end of the second laser sensor faces the location of the cup.

26. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The filling and pressing station includes a first support plate that can move up and down, a pressing cover, a feeding cylinder, and a third conveyor belt for transporting the cup to the next station. The first support plate is located above the third conveyor belt. The top of the pressing cover is connected to the bottom of the first support plate. A chamber is formed inside the pressing cover. The bottom of the pressing cover has a discharge port communicating with the chamber. The feeding cylinder has an outlet and an inlet. The feeding cylinder is connected to the pressing cover, and the outlet of the feeding cylinder communicates with the chamber. A discharge hopper for connecting to a weighing device is provided at the inlet of the feeding cylinder. The first support plate moves down until the bottom edge of the pressing cover abuts against the edge of the third cup placement slot on the third conveyor belt, so that the discharge port of the pressing cover communicates with the third cup placement slot.

27. The integrated production line for tea capsule assembly and filling as described in claim 26, characterized in that, The first support plate has an opening communicating with the chamber. A tenth pneumatic lifting rod is provided on the top of the first support plate. The actuating end of the tenth pneumatic lifting rod extends into the chamber through the opening. The actuating end of the tenth pneumatic lifting rod is provided with a first pressing head that is adapted to the internal space of the cup. The actuating end of the tenth pneumatic lifting rod can drive the first pressing head to move down to compact the contents filled in the cup.

28. The integrated production line for tea capsule assembly and filling as described in claim 26 or 27, characterized in that, A support frame is provided on the side of the third conveyor belt, and a lifting device is provided on the support frame. The first support plate is connected to the moving end of the lifting device to drive the first support plate to move vertically.

29. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The secondary pressing station includes an eleventh pneumatic lifting rod, a suction cover, and a third conveyor belt for transporting the cup to the next station. The eleventh pneumatic lifting rod is located above the third conveyor belt, and the actuating end of the eleventh pneumatic lifting rod extends vertically downward and is connected to the top of the suction cover. The bottom of the suction cover is provided with a second pressing head that is adapted to the internal space of the cup. The suction cover has a suction chamber inside, and a suction port communicating with the suction chamber is provided at the bottom of the suction cover. A suction pipe communicating with the suction chamber is provided on the suction cover.

30. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The capping station includes a cap conveyor belt for transporting caps, a receiving tray, a third conveyor belt for transporting the cup body to the next station, and a cap transfer trough spaced between the receiving tray and the third conveyor belt. The receiving tray is connected to the actuating end of a fifth pneumatic push-pull rod, and the actuating end of the fifth pneumatic push-pull rod can drive the receiving tray to the position where it connects with the discharge port of the cap conveyor belt. The capping station also includes a twelfth pneumatic lifting rod, a first pneumatic suction cup, and a second pneumatic suction cup. The actuating end of the twelfth pneumatic lifting rod extends vertically downward and is connected to a third horizontal connecting plate. The first and second pneumatic suction cups are respectively connected to the bottom ends of the third horizontal connecting plate. The twelfth pneumatic lifting rod is set on a third translational track to drive the twelfth pneumatic lifting rod to move between the receiving tray and the third conveyor belt. The first pneumatic suction cup is used to transfer the cup cap in the receiving tray to the cup cap transfer slot, and the second pneumatic suction cup is used to transfer the cup cap in the cup cap transfer slot to the third cup placement slot of the third conveyor belt.

31. The integrated production line for tea capsule assembly and filling as described in claim 30, characterized in that, The capping station also includes a cup cap sorting tray, and the inlet of the cup cap conveyor belt is connected to the outlet of the cup cap sorting tray.

32. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The cup lid visual inspection station includes a third image acquisition device and a third conveyor belt for transporting the cup to the next station. The third image acquisition device is located above the third conveyor belt, and the image acquisition end of the third image acquisition device faces the position of the cup lid on the top of the cup.

33. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The top cover film placement station includes a film placement cylinder and a third conveyor belt for transporting the cup to the next station. The film placement cylinder is located above the third conveyor belt and is a cylindrical shape with an open bottom. The film placement cylinder is used to store multiple stacked top cover films. A third pneumatic suction cup is provided between the bottom opening of the film placement cylinder and the third conveyor belt. The third pneumatic suction cup is used to adsorb the top cover film located at the bottom opening of the film placement cylinder. The third pneumatic suction cup rotates and moves downward to place the adsorbed top cover film on the top of the cup.

34. The integrated production line for tea capsule assembly and filling as described in claim 33, characterized in that, A control box is provided on one side of the third conveyor belt, and a second support plate extending upward from the top of the control box is provided on the top of the third conveyor belt. The diaphragm placement tube is located on the top of the second support plate, and the second support plate is provided with a through hole that communicates with the bottom opening of the diaphragm placement tube. The control box has an opening, and a drive device is provided inside the control box. The drive device is connected to a position adjustment shaft. The position adjustment shaft extends out of the opening on the control box, and the third pneumatic suction cup is provided on the position adjustment shaft so that the third pneumatic suction cup is vertically located between the bottom opening of the diaphragm placement cylinder and the third conveyor belt. The drive device can at least drive the position adjustment shaft to move vertically and can rotate circumferentially along the position adjustment shaft.

35. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The upper cover film welding station includes a thirteenth pneumatic lifting rod, an upper cover film welding head, and a third conveyor belt for transporting the cup to the next station. The thirteenth pneumatic lifting rod is positioned above the third conveyor belt. The actuating end of the thirteenth pneumatic lifting rod extends vertically downward and is connected to the upper cover film welding head. The upper cover film welding head is directly or indirectly connected to a second heating rod. The actuating end of the thirteenth pneumatic lifting rod can drive the upper cover film welding head to move downward until it abuts against the upper cover film on the cup on the third conveyor belt.

36. The integrated production line for tea capsule assembly and filling as described in claim 35, characterized in that, The actuating end of the thirteenth pneumatic lifting rod is connected to a second upper guide plate. A second lower guide plate is provided below the second upper guide plate. Multiple second guide columns are provided on the top of the second lower guide plate. The bottom end of the second guide column is connected to the top of the second lower guide plate. The top end of the second guide column slides through the second upper guide plate from top to bottom and exits from the top of the second upper guide plate. A second limiting nut is provided on the top end of the second guide column. A second spring is sleeved on the second guide column. The two ends of the second spring can abut against the bottom of the second lower guide plate and the top of the second upper guide plate, respectively. A second buffer seat is provided at the bottom of the second guide plate, the upper cover film welding head is provided at the bottom of the second buffer seat, and the second heating rod is connected to the second buffer seat and / or the second guide plate.

37. The integrated production line for tea capsule assembly and filling as described in claim 23, characterized in that, The visual inspection station for the top cover film includes a fourth image acquisition device and a third conveyor belt for transporting the cup to the next station. The fourth image acquisition device is located above the third conveyor belt, and the image acquisition end of the fourth image acquisition device faces the position of the top cover film on the top of the cup.

38. The integrated production line for tea capsule assembly and filling as described in claim 24, characterized in that, The cup-dispensing section includes a third cup-turning station and a cup-dispensing station connected in sequence, and the cup-dispensing station includes a cup-dispensing conveyor belt.

39. The integrated production line for tea capsule assembly and filling as described in claim 38, characterized in that, The third cup-turning station includes a swing arm and a cup-turning plate. The cup-turning plate is located at the inlet of the cup-out conveyor belt. A cup-turning groove is provided on the top surface of the cup-turning plate. The cup-turning plate can be rotated at least 180° toward the cup-out conveyor belt so that the cup-turning groove faces the top surface of the cup-out conveyor belt. The swing arm is located between the cup-flipping plate and the outlet of the third conveyor belt. The swing arm is equipped with a rotating shaft. The top end of the rotating shaft is hinged to the swing arm, and the bottom end of the rotating shaft is equipped with a fourth pneumatic suction cup. The swing arm can drive the fourth pneumatic suction cup to move between the outlet of the third conveyor belt and the cup-flipping plate, so as to transfer the cups on the third conveyor belt into the cup-flipping slot through the fourth pneumatic suction cup.

Images