Automatic cup feeding production line suitable for multiple sizes and working method thereof

Abstract

The application discloses a kind of automatic cup feeding production lines and working methods suitable for multiple models and sizes of cup, and the automatic cup feeding production line includes automatic cup feeding device and conveying line.The conveying line is used to convey cup strip stacked by a plurality of material cups.The automatic cup feeding device is arranged at the starting end of the conveying line, and a cup taking mechanism is arranged below the automatic cup feeding device to take and place material cups to the conveying line.Each column of the automatic cup feeding device can place cup strip, and different sizes of cup strip can be placed in each column of the automatic cup feeding device, which has wide versatility.In addition, compared with the existing conventional packaging production line, the application does not need workers to manually add cup strip one by one to the cup feeding seat, and workers can directly put a large batch of cup strip into the cup feeding channel of the cup storage rack at one time, which effectively improves production efficiency and reduces labor cost.

Description

Technical Field

[0001] This invention relates to the technical field of packaging production lines, and in particular to an automatic cup feeding production line applicable to various sizes of cups and its operating method. Background Technology

[0002] Packaging production lines are widely used in food, pharmaceutical, and other manufacturing industries. In these lines, cups are conveyed to various stages, including feeding and sealing. Currently, most conventional packaging lines rely on manual cup replenishment. Workers manually place a stack of cups (a strip of cups) at the cup supply station at the beginning of the line. A cup-retrieving mechanism then removes the cups one by one from under the stack and places them into the feeding plate on the conveyor. Once the supply station is empty, workers must promptly add more cups. This manual replenishment method not only increases labor costs but also hinders efficiency. Furthermore, with technological advancements, some automated cup-feeding production lines have emerged. However, these lines are limited to single-size cups, such as large or small cups, and cannot accommodate multiple cup sizes. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic cup feeding production line applicable to various sizes of cups and its working method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cup feeding production line applicable to cups of various sizes, including an automatic cup feeding device and a conveyor line. The conveyor line is used to transport a cup strip made up of several stacked cups. The automatic cup feeding device is located at the starting end of the conveyor line. Below the automatic cup feeding device is a cup picking mechanism for picking up and placing cups onto the conveyor line.

[0005] The automatic cup feeding device includes a cup storage rack for storing cup strips, a transfer rack at the rear end of the cup storage rack, a cup receiving component below the transfer rack, a number of cup feeding channels inside the cup storage rack, a cup feeding belt corresponding to each cup feeding channel, and a first opening and closing mechanism for intercepting cup strips at the end of each cup feeding channel of the cup storage rack.

[0006] The transfer frame is provided with several cup-taking positions, each cup-taking position corresponding to each cup-feeding channel of the cup storage rack. The transfer frame is provided with a positioning mechanism, which is provided with several positioning groove plates. Each cup-taking position is provided with a positioning groove plate on its rear side, and each cup-taking position is provided with a second opening and closing mechanism for clamping the cup strip on its front side.

[0007] To elaborate further, the automatic cup feeding production line also includes a cup detection device for detecting whether a cup is being transported at the conveyor line, a feeding device for feeding material into the cup, a sealing device for sealing the cup opening, a leak detection device for detecting the sealing performance, and a removal device for removing the finished product from the conveyor line, wherein the removal device is located at the end of the conveyor line.

[0008] To elaborate further, the positioning groove plate has a cup-supporting plate in the middle, and wing plates on both sides of the cup-supporting plate. The second opening and closing mechanism cooperates with the positioning groove plate to clamp the cup strip.

[0009] To elaborate further, the positioning mechanism also includes an adjusting cylinder for adjusting the position of the positioning groove plate.

[0010] To elaborate further, the first opening and closing mechanism includes a first fixed shaft, a first push-pull block is provided above the first fixed shaft, and two first fixed shafts are erected on both sides of the cup delivery channel outlet of the cup storage rack. Each first fixed shaft is hinged with a limit flip piece, and the limit flip pieces on both sides are symmetrically arranged. The first push-pull block is used to drive the limit flip pieces on both sides to close or open in opposite directions.

[0011] When the limiting flip plates on both sides close in opposite directions, the cup strip in the cup feeding channel is blocked and cannot enter the transfer frame; when the limiting flip plates on both sides open in opposite directions, the cup strip in the cup feeding channel is allowed to enter the transfer frame.

[0012] To elaborate further, the upper part of the limiting flip plate is provided with a rolling bearing, and the first push-pull block is provided with a front baffle and a rear baffle, with the rolling bearing located between the front baffle and the rear baffle.

[0013] To elaborate further, the second opening and closing mechanism includes a second fixed shaft, a second push-pull block is provided above the second fixed shaft, the two second fixed shafts are erected on both sides of the entrance of the cup taking position of the transfer frame, each second fixed shaft is hinged with a cup holding flip piece, the cup holding flip pieces on both sides are symmetrically arranged, and the second push-pull block is used to drive the cup holding flip pieces on both sides to close or open in opposite directions.

[0014] When the limiting flip plates on both sides of the second opening and closing mechanism open in opposite directions, and the first opening and closing mechanism is also in the open state, the cup strips in the cup delivery channel of the cup storage rack can enter the transfer rack; when the cup holding flip plates on both sides close in opposite directions, the cup strips that have entered the transfer rack are held and clamped, so that they can move with the transfer rack.

[0015] To elaborate further, a guide plate is fixedly installed above the cup receiving assembly. The cup receiving assembly includes a moving platform and at least two sets of cup receiving seats, namely a first cup receiving seat and a second cup receiving seat, which are adapted to different models and sizes of cups.

[0016] To elaborate further, the lower side of the mobile platform is provided with a first cup-receiving plate group corresponding to the first cup-receiving seat and a second cup-receiving plate group corresponding to the second cup-receiving seat, and the cup-receiving plate group and the second cup-receiving plate group have different cup-receiving distances.

[0017] The working method of an automatic cup feeding production line includes the following steps:

[0018] S1. Place several cup strips into the cup feeding channel of the cup storage rack of the automatic cup feeding device. Both the first opening and closing mechanism and the second opening and closing mechanism are in the open state. The cup feeding belt at the cup feeding channel transports the cup strips to the positioning groove plate of the transfer frame.

[0019] S2. The first opening and closing mechanism and the second opening and closing mechanism close simultaneously. The second opening and closing mechanism clamps the cup strip at the positioning groove plate. When clamping, it can guide the position of the cup strip so that when the subsequent transfer frame is transported to the cup receiving assembly, the center of the cup strip can be aligned with the center of the cup inlet hole of the guide plate. The first opening and closing mechanism intercepts the cup strip on the rear side to ensure that there is only one cup strip in each cup taking position of the transfer frame.

[0020] S3. The transfer frame clamps the cup strip and moves it to the top of the guide plate. The second opening and closing mechanism opens, allowing the cup strip to fall into the guide plate. After being positioned by the guide plate, the cup strip falls into the corresponding cup receiving seat at the cup receiving assembly. Cup strips of different models, sizes and specifications fall into different cup receiving seats.

[0021] S4. The cup-taking mechanism takes out the cups one by one from under the cup bar and places the cups into the holes of the cup-feeding plate of the conveyor line.

[0022] S5. The conveyor line conveys the material cups, and the material cups pass through the material cup detection device. The material cup detection device detects whether there are material cups in the plate holes of the cup feeding plate of the conveyor line.

[0023] S6. The conveyor line transports the material cup to the feeding device, and the feeding device feeds the material into the material cup.

[0024] S7. The conveyor line transports the material cups to the sealing device, which then seals the material cups containing the material.

[0025] S8. The conveyor line transports the material cup to the leak detection device, which detects the sealing performance of the material cup's sealing film.

[0026] S9. The conveyor line transports the material cup to the extraction device, and the extraction device extracts the finished product from the conveyor line.

[0027] The beneficial effects of this invention are as follows:

[0028] I. The present invention adopts an automatic cup feeding device in the structural design of an automatic cup feeding production line. Each column of cup feeding channel of the cup storage rack of the automatic cup feeding device can hold cup strips, and cup strips of different specifications and sizes can be placed in each column of cup feeding channel, which has wide versatility.

[0029] Second, compared with existing conventional packaging production lines, this invention eliminates the need for workers to manually add cup strips one by one to the cup holder. Workers can directly put a large number of cup strips into the cup feeding channel of the cup storage rack at once, which effectively improves production efficiency and reduces labor costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of an automatic cup feeding production line.

[0031] Figure 2 This is a schematic diagram of an automatic cup-feeding device.

[0032] Figure 3 A schematic diagram of the structure when the cup bar is placed into the cup storage rack of the automatic cup feeding device.

[0033] Figure 4 This is a schematic diagram of the automatic cup feeding device when it obtains the cup strip from the transfer rack.

[0034] Figure 5 This is a schematic diagram of the automatic cup feeding device when the transfer frame transports the cup strips to the cup receiving assembly.

[0035] Figure 6 This is a schematic diagram of the automatic cup feeding device when the cup receiving assembly receives the cup strips.

[0036] Figure 7 This is a schematic diagram of the bottom of the automatic cup feeding device.

[0037] Figure 8 This is a schematic diagram of the first opening and closing mechanism at the cup holder.

[0038] Figure 9 This is a schematic diagram of the second opening and closing mechanism at the transfer frame.

[0039] Figure 10 This is a schematic diagram of the first opening and closing mechanism.

[0040] Figure 11 This is a schematic diagram of the structure of the first push-pull block when it drives the first opening and closing mechanism.

[0041] Icon labels:

[0042] 10. Automatic cup feeding device; 11. Cup storage rack; 111. Cup feeding channel; 112. Cup feeding belt; 12. First opening and closing mechanism; 121. Limiting flip plate; 1211. Rolling bearing; 122. First fixed shaft; 123. First push-pull block; 1231. Front baffle; 1232. Rear baffle; 124. First push-pull cylinder; 13. Transfer frame; 131. Cup picking position; 132. First drive cylinder; 14. Second opening and closing mechanism; 141. Cup holding flipping mechanism. 142. Second fixed shaft; 143. Second push-pull block; 144. Second push-pull cylinder; 15. Positioning mechanism; 151. Positioning groove plate; 1511. Cup-supporting plate; 1512. Wing plate; 152. Adjusting cylinder; 16. Cup-receiving assembly; 161. First cup-receiving seat; 162. Second cup-receiving seat; 163. Moving stage; 164. First cup-retrieving clamping plate assembly; 165. Second cup-retrieving clamping plate assembly; 166. Second drive cylinder; 17. Cup guide plate;

[0043] 20. Conveyor line; 30. Cup picking mechanism; 40. Cup detection device; 50. Feeding device; 60. Sealing device; 70. Leak detection device; 80. Removal device; 90. Cup strip. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] Combined with appendix Figure 1 As shown, an automatic cup feeding production line applicable to cups of various sizes includes an automatic cup feeding device 10 and a conveyor line 20. The conveyor line 20 is used to transport cup strips made up of several stacked cups. The automatic cup feeding device 10 is located at the starting end of the conveyor line 20. Below the automatic cup feeding device 10 is a cup picking mechanism 30 for picking up and placing cups onto the conveyor line 20.

[0046] Combined with appendix Figure 2 To be continued Figure 4 As shown, the automatic cup feeding device 10 includes a cup storage rack 11 for storing cup strips. A transfer rack 13 is provided at the rear end of the cup storage rack 11, and a cup receiving assembly 16 is provided below the transfer rack 13. The cup storage rack 11 has several rows of cup feeding channels 111. Each row of cup feeding channels 111 is correspondingly provided with a cup feeding belt 112. A pulley adjusting screw is provided at the cup feeding belt 112 for adjusting the tension of the cup feeding belt 112. At the end of each cup feeding channel 111, the cup storage rack 11 is provided with a first opening and closing mechanism 12 for intercepting cup strips. The transfer rack 13 is specifically driven by a first driving cylinder 132, but is not limited to the cylinder driving method. Alternatively, the displacement of the transfer rack 13 relative to the cup storage rack 11 can also be achieved by a motor, which is also within the scope of our patent protection.

[0047] Combined with appendix Figure 5 Appendix Figure 6 and attached Figure 9 As shown, the transfer frame 13 is provided with a number of cup taking positions 131, each cup taking position 131 corresponds to each cup delivery channel 111 of the cup storage rack 11. The transfer frame 13 is provided with a positioning mechanism 15, which is provided with a number of positioning groove plates 151. Each cup taking position 131 is provided with a positioning groove plate 151 on its rear side, and each cup taking position 131 is provided with a second opening and closing mechanism 14 for clamping the cup strip on its front side.

[0048] As attached Figure 9 As shown, the positioning groove plate 151 has a cup-supporting plate portion 1511 in the middle, and wing plate portions 1512 on both sides of the cup-supporting plate portion 1511. The second opening and closing mechanism 14 cooperates with the positioning groove plate 151 to clamp the cup strip. Due to this special structural design of the positioning groove plate 151, whether it is a large cup strip made of stacked large cups or a small cup strip made of stacked small cups, the cup strip will naturally roll towards the cup-supporting plate portion 1511 in the middle under the guidance of the wing plate portions 1512, and both large and small cup strips can be accurately positioned.

[0049] The positioning mechanism 15 also includes an adjusting cylinder 152 for adjusting the position of the positioning groove plate 151. By adjusting the position of the positioning groove plate 151, the adjusting cylinder 152 ensures that when the subsequent transfer frame 13 is transported to the cup receiving assembly 16, the center of the cup strip can be aligned with the center of the cup inlet hole of the cup guide plate 17.

[0050] Combined with appendix Figure 4 and attached Figure 8 As shown, the first opening and closing mechanism 12 includes a first fixed shaft 122, and a first push-pull block 123 is provided above the first fixed shaft 122. The two first fixed shafts 122 are erected on both sides of the cup delivery channel 111 outlet of the cup storage rack 11. Each first fixed shaft 122 is hinged with a limit flip piece 121. The limit flip pieces 121 on both sides are symmetrically arranged. The first push-pull block 123 is used to drive the limit flip pieces 121 on both sides to close or open in opposite directions.

[0051] When the limiting flip plates 121 on both sides close in opposite directions, the cup strip in the cup feeding channel 111 is blocked and cannot enter the transfer rack 13; when the limiting flip plates 121 on both sides open in opposite directions, the cup strip in the cup feeding channel 111 is allowed to enter the transfer rack 13.

[0052] Combined with appendix Figure 10 and attached Figure 11As shown, the upper part of the limiting flip plate 121 is provided with a rolling bearing 1211, and the first push-pull block 123 is provided with a front baffle 1231 and a rear baffle 1232. The rolling bearing 1211 is located between the front baffle 1231 and the rear baffle 1232. The first push-pull block 123 is specifically driven by a first push-pull cylinder 124, but is not limited to cylinder drive. A gear and rack structure driven by a motor can also be used to drive the first push-pull block 123 to move, which is also within the scope of our patent protection.

[0053] Combined with appendix Figure 4 and attached Figure 9 As shown, the second opening and closing mechanism 14 includes a second fixed shaft 142, and a second push-pull block 143 is provided above the second fixed shaft 142. The two second fixed shafts 142 are erected on both sides of the entrance of the cup taking position 131 of the transfer frame 13. Each second fixed shaft 142 is hinged with a cup holding flip piece 141. The cup holding flip pieces 141 on both sides are symmetrically arranged. The second push-pull block 143 is used to drive the cup holding flip pieces 141 on both sides to close or open in opposite directions.

[0054] When the limiting flip plates 121 on both sides of the second opening and closing mechanism 14 open in opposite directions, and the first opening and closing mechanism 12 is also in the open state, the cup strips in the cup delivery channel 111 of the cup storage rack 11 can enter the transfer rack 13; when the cup-holding flip plates 141 on both sides close in opposite directions, the cup strips that have entered the transfer rack 13 are clamped and can move with the transfer rack 13. The upper part of the cup-holding flip plate 141 is also provided with a rolling bearing, and the second push-pull block 143 is also provided with a front baffle and a rear baffle, and the rolling bearing is also provided between the front baffle and the rear baffle. The second push-pull block 143 is specifically driven by the second push-pull cylinder 144, but is not limited to the cylinder-driven method. A gear and rack structure driven by a motor can also be used to drive the first push-pull block 123 to move, which is also within the scope of our patent protection.

[0055] Combined with appendix Figure 5 To be continued Figure 7 As shown, a guide plate 17 is fixedly installed above the cup receiving assembly 16. The cup receiving assembly 16 includes a moving stage 163 and at least two sets of cup receiving seats, namely a first cup receiving seat 161 and a second cup receiving seat 162. The two sets of cup receiving seats are adapted to cups of different sizes and specifications. The moving stage 163 is specifically driven by a second drive cylinder 166, but is not limited to the cylinder drive method. Alternatively, the moving stage 163 can be moved by a combination of a motor and a lead screw, a combination of a motor and a synchronous belt, or an electric cylinder. This is also within the scope of our patent protection.

[0056] Combined with appendix Figure 7As shown, the lower side of the moving platform 163 is provided with a first cup-retrieving plate group 164 corresponding to the first cup receiving seat 161 and a second cup-retrieving plate group 165 corresponding to the second cup receiving seat 162. The cup-retrieving plate group 164 and the cup-retrieving plate group 165 have different cup-retrieving distances.

[0057] Combined with appendix Figure 1 As shown, the automatic cup feeding production line also includes a cup detection device 40 for detecting whether a cup is being transported at the conveyor line 20, a feeding device 50 for feeding material into the cup, a sealing device 60 for sealing the cup opening, a leak detection device 70 for detecting the sealing performance of the sealing film, and a take-out device 80 for taking out the finished product from the conveyor line 20. The take-out device 80 is located at the end of the conveyor line 20.

[0058] Combined with appendix Figure 1 As shown, the working method of the automatic cup feeding production line includes the following steps:

[0059] S1, combined with appendix Figure 2 and attached Figure 3 As shown, several cup strips 90 are placed into the cup feeding channel 111 of the cup storage rack 11 of the automatic cup feeding device 10. The first opening and closing mechanism 12 and the second opening and closing mechanism 14 are both in the open state. The cup feeding belt 112 at the cup feeding channel 111 transports the cup strips to the positioning groove plate 151 of the transfer frame 13.

[0060] S2. The first opening and closing mechanism 12 and the second opening and closing mechanism 14 are closed at the same time. The second opening and closing mechanism 14 clamps the cup strip at the positioning groove plate 151. When clamping, the position of the cup strip can be guided so that when the subsequent transfer frame 13 is transported to the cup receiving assembly 16, the center of the cup strip can be aligned with the center of the cup inlet hole of the cup guide plate 17. The first opening and closing mechanism 12 intercepts the cup strip on the rear side to ensure that there is only one cup strip in each cup taking position 131 of the transfer frame 13.

[0061] S3, combined with appendix Figure 4 and attached Figure 5 As shown, the transfer frame 13 clamps the cup strip and moves it above the guide plate 17. The second opening and closing mechanism 14 opens, allowing the cup strip to fall into the guide plate 17. After being positioned by the guide plate 17, the cup strip falls into the corresponding cup receiving seat at the cup receiving assembly 16. Cup strips of different models, sizes and specifications fall into different cup receiving seats.

[0062] S4. The cup-taking mechanism 30 takes out the cups one by one from under the cup bar and places the cups into the plate holes of the cup-feeding plate of the conveyor line 20.

[0063] S5. Conveyor line 20 conveys material cups. The material cups pass through material cup detection device 40. Material cup detection device 40 detects whether there are material cups in the plate holes of the cup feeding plate of conveyor line 20.

[0064] S6. Conveyor line 20 conveys the material cup to feeding device 50, and feeding device 50 feeds material into the material cup;

[0065] S7. Conveyor line 20 conveys the material cup to sealing device 60, and sealing device 60 seals the material cup containing the material.

[0066] S8, conveyor line 20 conveys the material cup to leak detection device 70, and leak detection device 70 detects the sealing performance of the material cup sealing film;

[0067] S9. Conveyor line 20 conveys the material cup to the extraction device 80, and the extraction device 80 extracts the finished product from the conveyor line 20.

[0068] This invention employs an automatic cup feeding device 10 in the structural design of an automatic cup feeding production line, combined with the attached... Figure 2 and attached Figure 3 As shown, each column of cup feeding channels 111 in the cup storage rack 11 of the automatic cup feeding device 10 can hold cup strips, and each column of cup feeding channels 111 can hold cup strips of different sizes. When small cups are used for packaging, several cup strips made up of stacked small cups are placed into the cup feeding channels 111 of the cup storage rack 11. Similarly, when large cups are used for packaging, several cup strips made up of stacked large cups are placed into the cup feeding channels 111 of the cup storage rack 11. The automatic cup feeding device 10 is suitable for cups of different sizes and has wide versatility.

[0069] Furthermore, compared to existing conventional packaging production lines, this invention eliminates the need for workers to manually add cup strips one by one to the cup holder. Workers can directly put a large number of cup strips into the cup feeding channel 111 of the cup storage rack 11 at once, effectively improving production efficiency and reducing labor costs.

[0070] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0071] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0072] The above description is not intended to limit the scope of the present invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic cup feeding production line applicable to various sizes and models of cups, characterized in that: It includes an automatic cup feeding device (10) and a conveyor line (20). The conveyor line (20) is used to transport a cup strip made up of several stacked cups. The automatic cup feeding device (10) is located at the starting end of the conveyor line (20). Below the automatic cup feeding device (10) is a cup picking mechanism (30) for picking up and placing cups onto the conveyor line (20). The automatic cup feeding device (10) includes a cup storage rack (11) for storing cup strips. The rear end of the cup storage rack (11) is provided with a transfer rack (13). Below the transfer rack (13) is a cup receiving component (16). The cup storage rack (11) is provided with several rows of cup feeding channels (111). Each row of cup feeding channels (111) is provided with a corresponding cup feeding belt (112). At the end of each of the cup feeding channels (111), the cup storage rack (11) is provided with a first opening and closing mechanism (12) for intercepting cup strips. The transfer frame (13) is provided with a plurality of cup taking positions (131), each cup taking position (131) corresponding to each cup delivery channel (111) of the cup storage rack (11). The transfer frame (13) is provided with a positioning mechanism (15), the positioning mechanism (15) is provided with a plurality of positioning groove plates (151), the rear side of each cup taking position (131) is provided with the positioning groove plate (151), and the front side of each cup taking position (131) is provided with a second opening and closing mechanism (14) for clamping the cup strip. The positioning groove plate (151) has a cup-supporting plate (1511) in the middle, and wing plate portions (1512) are provided on both sides of the cup-supporting plate (1511). The second opening and closing mechanism (14) cooperates with the positioning groove plate (151) to clamp the cup strip. The positioning mechanism (15) also includes an adjusting cylinder (152) for adjusting the position of the positioning groove plate (151). A guide plate (17) is fixedly installed above the cup receiving assembly (16). The cup receiving assembly (16) includes a moving stage (163) and at least two sets of cup receiving seats. The two sets of cup receiving seats are a first cup receiving seat (161) and a second cup receiving seat (162), and the two sets of cup receiving seats are adapted to different models and sizes of cups. The lower side of the mobile platform (163) is provided with a first cup-retrieving plate group (164) corresponding to the first cup receiving seat (161) and a second cup-retrieving plate group (165) corresponding to the second cup receiving seat (162). The cup-retrieving plate group (164) and the second cup-retrieving plate group (165) have different cup-retrieving distances.

2. The automatic cup feeding production line applicable to multiple sizes of cups according to claim 1, characterized in that: It also includes a cup detection device (40) for detecting whether a cup is being transported at the conveyor line (20), a feeding device (50) for feeding material into the cup, a sealing device (60) for sealing the cup opening, a leak detection device (70) for detecting the sealing performance, and a take-out device (80) for taking out the finished product from the conveyor line (20), the take-out device (80) being located at the end of the conveyor line (20).

3. The automatic cup feeding production line applicable to multiple sizes of cups according to claim 1, characterized in that: The first opening and closing mechanism (12) includes a first fixed shaft (122), and a first push-pull block (123) is provided above the first fixed shaft (122). The two first fixed shafts (122) are erected on both sides of the cup delivery channel (111) outlet of the cup storage rack (11). Each first fixed shaft (122) is hinged with a limit flip piece (121). The limit flip pieces (121) on both sides are symmetrically arranged. The first push-pull block (123) is used to drive the limit flip pieces (121) on both sides to close or open in opposite directions. When the limiting flip plates (121) on both sides close in opposite directions, the cup strip in the cup feeding channel (111) is blocked and cannot enter the transfer rack (13); when the limiting flip plates (121) on both sides open in opposite directions, the cup strip in the cup feeding channel (111) is allowed to enter the transfer rack (13).

4. The automatic cup feeding production line applicable to multiple sizes of cups according to claim 3, characterized in that: The upper part of the limiting flip plate (121) is provided with a rolling bearing (1211), and the first push-pull block (123) is provided with a front baffle (1231) and a rear baffle (1232). The rolling bearing (1211) is located between the front baffle (1231) and the rear baffle (1232).

5. The automatic cup feeding production line applicable to multiple sizes of cups according to claim 1, characterized in that: The second opening and closing mechanism (14) includes a second fixed shaft (142), and a second push-pull block (143) is provided above the second fixed shaft (142). The two second fixed shafts (142) are erected on both sides of the entrance of the cup taking position (131) of the transfer frame (13). Each second fixed shaft (142) is hinged with a cup holding flip piece (141). The cup holding flip pieces (141) on both sides are symmetrically arranged. The second push-pull block (143) is used to drive the cup holding flip pieces (141) on both sides to close or open in opposite directions. When the limiting flip plates (121) on both sides of the second opening and closing mechanism (14) open in opposite directions, and the first opening and closing mechanism (12) is also in the open state, the cup strip in the cup delivery channel (111) of the cup storage rack (11) can enter the transfer rack (13); when the cup holding flip plates (141) on both sides close in opposite directions, the cup strip that has entered the transfer rack (13) is held and clamped, so that it can move along with the transfer rack (13).

6. The working method of the automatic cup feeding production line, based on the automatic cup feeding production line applicable to multiple sizes of cups as described in claim 1, is characterized in that: It includes the following steps, S1. Place several cup strips into the cup feeding channel (111) of the cup storage rack (11) of the automatic cup feeding device (10). The first opening and closing mechanism (12) and the second opening and closing mechanism (14) are both in the open state. The cup feeding belt (112) at the cup feeding channel (111) transports the cup strips to the positioning groove plate (151) of the transfer frame (13). S2. The first opening and closing mechanism (12) and the second opening and closing mechanism (14) are closed at the same time. The second opening and closing mechanism (14) clamps the cup strip at the positioning groove plate (151). When clamping, the position of the cup strip can be guided so that when the subsequent transfer frame (13) is transported to the cup receiving assembly (16), the center of the cup strip can be aligned with the center of the cup inlet hole of the guide plate (17). The first opening and closing mechanism (12) intercepts the cup strip on the rear side to ensure that there is only one cup strip in each cup taking position (131) of the transfer frame (13). S3. The transfer frame (13) clamps the cup strip and moves it above the guide plate (17). The second opening and closing mechanism (14) opens, allowing the cup strip to fall into the guide plate (17). After being positioned by the guide plate (17), the cup strip falls into the corresponding cup receiving seat at the cup receiving assembly (16). Cup strips of different models, sizes and specifications fall into different cup receiving seats. S4. The cup taking mechanism (30) takes out the cups one by one from under the cup bar and places the cups into the plate holes of the cup feeding plate of the conveyor line (20); S5. The conveyor line (20) conveys the cups, and the cups pass through the cup detection device (40). The cup detection device (40) detects whether there are cups in the plate holes of the cup feeding plate of the conveyor line (20). S6. The conveyor line (20) conveys the material cup to the feeding device (50), and the feeding device (50) feeds the material into the material cup; S7. The conveyor line (20) conveys the material cup to the sealing device (60), and the sealing device (60) seals the material cup containing the material. S8, conveyor line (20) conveys the material cup to the leak detection device (70), and the leak detection device (70) detects the sealing performance of the material cup sealing film; S9. The conveyor line (20) conveys the material cup to the take-out device (80), and the take-out device (80) takes out the finished product from the conveyor line (20).

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