Lifting clamping device and filling apparatus

Abstract

The application provides a lifting clamping device and a filling equipment, and belongs to the field of packaging equipment. The lifting clamping device comprises a supporting table for carrying a packaging container and a lifting driving mechanism for driving the supporting table to lift, at least two clamping claws are arranged at the edge of the supporting table, the clamping claw has a clamping part for clamping the packaging container and a connecting part for movably connecting with the supporting table, and a turnover driving mechanism is arranged below the supporting table and used for driving the clamping claw to turn up to clamp the packaging container by the clamping part and turn down to make the clamping claw not higher than the upper surface of the supporting table. The filling equipment comprises the above lifting clamping device. According to the application, the clamping claw is arranged at the edge of the supporting table and can turn up to clamp the packaging container, and when the packaging container is not clamped, the clamping claw can turn below the upper surface of the supporting table, so that the transfer of the packaging container is not hindered.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment, and in particular relates to a lifting clamping device and a filling device. Background Technology

[0002] After the sealant is produced, it needs to be filled into packaging containers for packaging. When injecting sealant into the packaging containers, the filling equipment needs to insert the filling head into the container to prevent sealant from splashing out during the filling process. After filling, the filling head is then removed from the packaging container to allow for the next packaging container to arrive before continuing filling. The interval between filling one packaging container and the next results in a relatively long interruption in the sealant supply, leading to low filling efficiency. This problem also exists when filling other fluid products besides sealant.

[0003] To address the aforementioned technical issues, a Chinese utility model patent with authorization announcement number CN207292507U and authorization announcement date of May 1, 2018, discloses an animal fat filling device. This device includes a rapid cooling device and a filling device. The filling device includes a three-way pipe with a pneumatic three-way valve inside. One inlet of the three-way pipe is connected to the outlet of the rapid cooling device, and support platforms for carrying receiving boxes are provided below both outlets of the three-way pipe. In use, the inlet of the three-way pipe is first connected to one of the outlets to fill one receiving box with animal fat. After that receiving box is full, the pneumatic three-way valve opens to the other outlet to fill the other receiving box, effectively improving filling efficiency.

[0004] Products like animal fats, which are in a semi-solid state, are less prone to splashing, so the outlet of the T-joint (i.e., the filling head) does not need to extend into the receiving box. However, when using the above equipment to fill products like sealant, if the outlet of the T-joint does not extend into the packaging container, splashing or air bubbles may easily occur during the filling process. Since the packaging container that is already filled at the other outlet needs to be replaced with an empty packaging container while one outlet of the T-joint is being filled, the T-joint cannot be raised or lowered. The only way to ensure that the outlet of the T-joint is inside the packaging container during filling is by raising or lowering the support platform.

[0005] However, during the lifting and lowering process, the support platform impacts the unsecured packaging containers placed on it, causing them to shake. This is especially true when the support platform is rising, as empty cans with relatively small mass are more prone to instability and shaking, and may even fall off the support platform, affecting the proper filling of sealant. If clamping devices are installed on the support platform to secure the packaging containers, these devices will protrude from the platform, hindering the transfer of the packaging containers and making them unsuitable for use on packaging production lines. Summary of the Invention

[0006] One of the objectives of this invention is to provide a lifting clamping device to solve the technical problem in the prior art where, after a clamping device for fixing a packaging container is installed on a liftable support platform, the clamping device protrudes from the support platform, thus hindering the transfer of the packaging container.

[0007] Another object of the present invention is to provide a filling device to solve the above-mentioned technical problems.

[0008] To achieve the above objectives, the technical solution of the lifting clamping device provided by the present invention is as follows:

[0009] A lifting and clamping device includes a support platform for carrying a packaging container and a lifting drive mechanism for driving the support platform to lift and lower. At least two claws are provided at the edge of the support platform. Each claw has a locking part for clamping the packaging container and a connecting part for movably connecting with the support platform. A flipping drive mechanism is provided below the support platform for driving the claws to flip upward so as to clamp the packaging container using the locking part and for driving the claws to flip downward so that the claws are not higher than the upper surface of the support platform.

[0010] As a further improvement, the support platform has a support engagement portion for supporting and engaging with a support structure on the filling equipment, so that the support platform can be maintained at a corresponding height under the support of the support structure. The flipping drive mechanism includes a transmission member disposed below the support platform and moving up and down with the support platform. The transmission member is movably connected to the claw. The lifting drive mechanism is connected to the transmission member. Under the drive of the lifting drive mechanism, the transmission member has an approach position that approaches the support platform to push the claw and lift the engagement portion, and a distance position that moves away from the support platform to pull the claw down and lower the engagement portion.

[0011] As a further improvement, the connecting part is hinged to the support platform, and a first elastic element is fixedly connected between the transmission component and the chuck; or the connecting part is fixedly connected to the support platform, and a first elastic element is hinged between the transmission component and the chuck.

[0012] As a further improvement, the lifting clamping device also includes a guide member that is no higher than the upper surface of the support platform. One of the guide members and the claw has a guide groove, and the other has a guide rod for guiding and engaging with the guide groove.

[0013] As a further improvement, the transmission connection between the transmission component and the support platform is provided with a second elastic element for driving the transmission component and the support platform to move towards each other when the original state is restored.

[0014] As a further improvement, the latching portion is formed with at least two teeth at different center distances from the support platform for abutting against the bottom of the side wall of the packaging container.

[0015] As a further improvement, the locking tooth with the smallest distance to the center of the support platform is arc-shaped and has an arc-shaped contact surface. When the locking part is above the upper surface of the support platform, the arc-shaped contact surface faces the center of the support platform.

[0016] As a further improvement, a clearance groove is provided at the edge of the support platform to avoid the claw.

[0017] As a further improvement, one of the transmission components and the support platform is provided with a guide post, and the other is provided with a guide hole for guiding and engaging with the guide post.

[0018] The beneficial effects are: the lifting and clamping device in this invention is an improvement on the prior art. The aforementioned lifting and clamping device, by setting up vertically rotatable jaws on the edge of the support platform, ensures that when the support platform is lowered to receive the packaging container, the jaws are not higher than the upper surface of the support platform, facilitating the transfer of the packaging container; when the support platform is ready to be raised for the filling of sealant, the jaws can be rotated so that their engaging portion is higher than the upper surface of the support platform, thereby clamping the packaging container and ensuring its stability.

[0019] To achieve the above objectives, the technical solution of the filling equipment provided by the present invention is as follows:

[0020] A filling device includes a clamping and lifting device. The clamping and lifting device includes a support platform for supporting a packaging container and a lifting drive mechanism for driving the support platform to rise and fall. At least two claws are provided at the edge of the support platform. The claws have a snap-fit ​​portion for clamping the packaging container and a connecting portion for movably connecting with the support platform. A flipping drive mechanism is provided below the support platform for driving the claws to flip upward so as to clamp the packaging container using the snap-fit ​​portion and for driving the claws to flip downward so that the claws are not higher than the upper surface of the support platform.

[0021] As a further improvement, the support platform has a support engagement portion for supporting and engaging with a support structure on the filling equipment, so that the support platform can be maintained at a corresponding height under the support of the support structure. The flipping drive mechanism includes a transmission member disposed below the support platform and moving up and down with the support platform. The transmission member is movably connected to the claw. The lifting drive mechanism is connected to the transmission member. Under the drive of the lifting drive mechanism, the transmission member has an approach position that approaches the support platform to push the claw and lift the engagement portion, and a distance position that moves away from the support platform to pull the claw down and lower the engagement portion.

[0022] As a further improvement, the connecting part is hinged to the support platform, and a first elastic element is fixedly connected between the transmission component and the chuck; or the connecting part is fixedly connected to the support platform, and a first elastic element is hinged between the transmission component and the chuck.

[0023] As a further improvement, the lifting clamping device also includes a guide member that is no higher than the upper surface of the support platform. One of the guide members and the claw has a guide groove, and the other has a guide rod for guiding and engaging with the guide groove.

[0024] As a further improvement, the transmission connection between the transmission component and the support platform is provided with a second elastic element for driving the transmission component and the support platform to move towards each other when the original state is restored.

[0025] As a further improvement, the latching portion is formed with at least two teeth at different center distances from the support platform for abutting against the bottom of the side wall of the packaging container.

[0026] As a further improvement, the locking tooth with the smallest distance to the center of the support platform is arc-shaped and has an arc-shaped contact surface. When the locking part is above the upper surface of the support platform, the arc-shaped contact surface faces the center of the support platform.

[0027] As a further improvement, a clearance groove is provided at the edge of the support platform to avoid the claw.

[0028] As a further improvement, one of the transmission components and the support platform is provided with a guide post, and the other is provided with a guide hole for guiding and engaging with the guide post.

[0029] The beneficial effects are: the filling equipment of the present invention is an improvement on the prior art. The lifting and clamping device in the above-mentioned filling equipment has a jack that can flip up and down on the edge of the support platform. So when the support platform is lowered to receive the packaging container, the jack is not higher than the upper surface of the support platform, so as to facilitate the transfer of the packaging container; when the support platform is ready to be raised for the filling of sealant, the jack can flip so that its locking part is higher than the upper surface of the support platform, thereby clamping the packaging container and ensuring the stability of the packaging container. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the lifting and clamping device in this invention;

[0031] Figure 2 This is a schematic diagram of the structure of the lifting clamping device in the present invention when the transmission component is in a far-away position;

[0032] Figure 3 This is a cross-sectional view of the lifting clamping device in this invention when the transmission component is in a remote position;

[0033] Figure 4 This is a schematic diagram of the structure of the lifting clamping device in the present invention when the transmission component is in the close-to-close position;

[0034] Figure 5 This is a cross-sectional view of the transmission component in the lifting clamping device of the present invention when it is in the close-to-close position;

[0035] Figure 6 This is a schematic diagram of the filling equipment in this invention;

[0036] Figure 7 This is a top view of the filling equipment in this invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Tank area; 11. Tank conveyor belt; 12. Separator; 2. Filling area; 21. Frame; 22. Workbench; 23. Transfer conveyor belt; 24. Filler; 241. Inlet; 242. Outlet; 243. Two-position three-way valve; 25. Lifting and clamping device; 2501. Support platform; 2502. Lifting drive mechanism; 2503. Claw; 2504. Transmission component; 2505. First spring; 2506. Guide column; 2507. Mounting flange; 2508. Second spring; 2509. Step structure; 2510. Avoidance 2511. Guide Component; 2512. Guide Groove; 2513. Guide Rod; 2514. Snap-fit ​​Part; 2515. Connecting Part; 2516. Snap Tooth; 2517. Arc-shaped Abutment Surface; 2518. Guide Hole; 26. First Transfer Device; 27. Second Transfer Device; 28. Third Transfer Device; 29. ​​Fourth Transfer Device; 3. Weighing Area; 31. Weighing Platform; 32. First Barrier Device; 33. Fifth Transfer Device; 4. Functional Conveyor Belt; 5. Coating and Pressing Area; 51. Second Barrier Device; 52. Third Barrier Device. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the embodiments.

[0040] The present invention provides a clamping claw that can flip upward to clamp the packaging container by setting a support platform edge. When not clamping the packaging container, the clamping claw can flip down to below the upper surface of the support platform, so as not to hinder the transfer of the packaging container.

[0041] Specific embodiments of the lifting and clamping device provided by the present invention:

[0042] See appendix Figure 1 The lifting clamping device 25 includes a support platform 2501 and a lifting drive mechanism 2502 for driving the support platform 2501 to rise and fall. Four claws 2503 are provided at the edge of the support platform 2501. The claws 2503 have a snap-fit ​​part 2514 for clamping the packaging container and a connecting part 2515 for movably connecting with the support platform 2501.

[0043] See appendix Figure 2 and attached Figure 3The lower edge of the support platform 2501 has a stepped structure 2509. The filling equipment is equipped with a support structure that mates with this stepped structure 2509. After the stepped structure 2509 overlaps the support structure, it is supported by the support structure. Simultaneously, the support structure also secures the stepped structure 2509, ensuring the radial stability of the support platform 2501. In this embodiment, the stepped structure 2509 constitutes a support-fitting structure. The support structure limits the vertical movement of the support platform, preventing it from moving downwards beyond the support structure, but allowing it to move upwards from the support structure.

[0044] A flipping drive mechanism is provided below the support platform 2501 to drive the gripper 2503 to flip upward so as to clamp the packaging container using the clamping part 2514, and to drive the gripper 2503 to flip downward so that the gripper 2503 does not exceed the upper surface of the support platform 2501. The flipping drive mechanism includes a transmission member 2504 disposed below the support platform 2501, and the transmission member 2504 is movably connected to the gripper 2503.

[0045] In this embodiment, the transmission component 2504 has a disc-shaped structure, and its edge is hinged to the pawl 2503. A first elastic element is fixedly connected between the connecting part 2515 and the support platform 2501. Specifically, the first elastic element is a vertically arranged first spring 2505. In other embodiments, the first elastic element may also be a rubber block.

[0046] The lifting drive mechanism 2502 is an electric actuator, but in other embodiments, a pneumatic cylinder or a hydraulic cylinder can also be used as the lifting drive mechanism 2502. The output rod end of the lifting drive mechanism 2502 is fixedly connected to the transmission component 2504, so the lifting drive mechanism 2502 directly controls the lifting action of the transmission component 2504.

[0047] During the lifting and lowering process of transmission component 2504, it can drive each gripper to rotate. See appendix for details. Figure 4 and attached Figure 5 As the transmission component 2504 rises, it gradually approaches the support platform 2501 and reaches the approaching position. The hinge point between the claw 2503 and the transmission component 2504 will be pushed by the transmission component 2504, resulting in a large displacement. However, the connecting part 2515 of the claw 2503, being connected to the first spring 2505, will not experience significant displacement. At this time, the engaging part 2514 of the claw 2503 will move upward by a larger displacement, reaching above the upper surface of the support platform 2501. The engaging parts 2514 of multiple claws 2503 can then clamp the packaging container from all sides. After the support platform 2501 is supported by the support structure, as the transmission component 2504 descends, it gradually moves away from the support platform 2501 and reaches the away position. The reverse process will then occur, causing the claws 2503 to flip downwards back to their initial state. (See Appendix) Figure 2 and attached Figure 3 At this point, the entire clamping claw 2503 is not higher than the upper surface of the support platform 2501. After the clamping claw 2503 flips upward to clamp the packaging container, due to the action of the first spring 2505, the clamping force of the clamping claw 2503 on the packaging container is relatively stable and gentle, and there will be no phenomenon of the packaging container being crushed or broken due to excessive clamping by the clamping claw 2503.

[0048] During the lifting and lowering process of the transmission component 2504, it can also drive the support platform 2501 to lift and lower. Specifically, four vertically extending guide posts 2506 are fixedly installed on the lower side of the support platform 2501, and mounting flanges 2507 are fixedly installed at the lower ends of the guide posts 2506. The transmission component 2504 has four guide holes 2518 that correspond one-to-one with the guide posts 2506 and are guided and fitted. A second elastic element is fixedly connected between the transmission component 2504 and the support platform 2501. In this embodiment, the second elastic element is a second spring 2508. The second spring 2508 is sleeved on the guide posts 2506, and both ends of the second spring 2508 are fixedly connected to the mounting flange 2507 and the lower side wall of the transmission component 2504, respectively.

[0049] When the transmission component 2504 is in the far-away position, the second spring 2508 is compressed, pressing the support platform 2501 against the support structure. After the transmission component 2504 rises to its near-away position, the engaging portions 2514 of each claw 2503 flip upwards to lock the packaging container. During this process, the second spring 2508 extends to return to its original length, thus promoting the relative movement of the transmission component 2504 and the support platform 2501. After the engaging portions 2514 lock the packaging container, the claws 2503 will no longer flip, and the distance between the transmission component 2504 and the support platform 2501 will remain stable. As the transmission component continues to rise, it will cause the support platform 2501 to rise. The highest position of the support platform 2501 is its raised position, at which point the filling operation can be performed. The transmission component 2504 descends and drives the support platform 2501 to descend together. After the support platform 2501 descends to the support structure, it will be supported by the support structure and stop descending. At this time, the transmission component 2504 continues to descend and eventually reaches the far-away position.

[0050] The jaw 2503 has an L-shaped structure, with the engaging portion 2514 and the connecting portion 2515 located at opposite ends of the jaw 2503. The hinge between the transmission component 2504 and the jaw 2503 is located at the bend in the middle of the jaw 2503. The engaging portion 2514 of the jaw 2503 has four teeth 2516 at different center distances to the support platform 2501 to accommodate packaging containers of different diameters. Even when the packaging container is not centered, the teeth 2516 at different positions can still clamp it. The ends of the teeth 2516 are rounded to prevent scratching the packaging container. The tooth 2516 with the smallest distance to the center of the support platform 2501 is arc-shaped and has an arc-shaped abutment surface 2517. When the transmission component 2504 is in the close position, the arc-shaped abutment surface 2517 faces the center of the support platform 2501. Thus, when the diameter of the packaging container is small, the arc-shaped abutment surface 2517 can be used to press against the side wall of the packaging container. Due to the arc-shaped abutment surface 2517, the claw 2503 can have a large range of adaptability to the diameter of the packaging container.

[0051] In order for the claw 2503 to be able to hold the packaging container whose diameter is smaller than the upper surface of the support platform 2501, four clearance grooves 2510 can be opened at the edge of the support platform 2501, so that the claw 2503 can flip upward from the clearance grooves 2510.

[0052] To ensure the stability of the chuck 2503 during downward flipping, four guide members 2511 are provided around the support platform 2501. Each guide member 2511 has an upward-opening U-shaped guide groove 2512. A guide rod 2513, which guides and engages with the guide groove 2512, is fixedly installed on the chuck 2503. During the downward flipping process, the guide rod 2513 enters the guide groove 2512. The guide rod 2513 is limited by the guide groove 2512, ensuring the stability of the chuck 2503. Furthermore, when the guide rod 2513 reaches the bottom of the guide groove 2512, it is supported by the guide members 2511, preventing it from over-flipping downwards. At this time, the first spring 2505 also acts as a buffer, preventing damage to the chuck 2503 if the transmission member 2504 continues to move downwards.

[0053] The process of the lifting and clamping device 25 clamping and lifting the packaging container is as follows: Initially, the support platform 2501 is in the descending position flush with the worktable surface 22. First, the packaging container is transferred to the support platform 2501. Then, the lifting drive mechanism 2502 drives the transmission component 2504 to rise, thereby bringing the transmission component 2504 to the approach position. At this time, each jaw 2503 flips upward to secure the packaging container. Then, the transmission component 2504 continues to rise, driving the support platform 2501 to rise. During this process, the transmission component 2504 initially... When the container is in the approach position, the jaws 2503 keep the packaging container clamped. Finally, the support platform 2501 reaches the rising position, and the outlet 242 of the filler 24 extends into the packaging container to perform the sealant filling operation. After the sealant filling is completed, the transmission component 2504 descends under the drive of the lifting drive mechanism 2502. The support platform 2501 descends to the descending position and stops descending, while the transmission component 2504 continues to descend to the far-away position, causing each jaw 2503 to flip downwards below the upper surface of the support platform 2501.

[0054] In this embodiment, the lifting clamping device 25 has no protruding structure on its upper surface when the support platform 2501 is in the lowered position, thus facilitating the transfer of the packaging container. During the upward movement of the support platform 2501 carrying the packaging container, the gripper 2503 can flip upwards to secure the packaging container, ensuring smooth filling of the sealant. Furthermore, the driving force for the upward flipping of the gripper 2503 is provided by the lifting drive mechanism 2502, eliminating the need for a separate drive source for the gripper 2503, simplifying the device structure and making it easier to control.

[0055] In other embodiments, the second elastic element can also be configured in other ways. For example, the guide post can be fixedly mounted on the top of the transmission component, while the guide hole is opened at the bottom of the support platform. In this embodiment, the guide hole must be a blind hole to prevent the end of the guide post from protruding from the support platform. The second elastic element is a spring, which is sleeved on the guide post, and both ends of the spring are fixedly connected to the support platform and the transmission component, respectively. As another example, no guide hole or guide post is provided on the transmission component and the support platform, but multiple second elastic elements are provided only between the transmission component and the support platform. The two ends of the second elastic elements are fixedly connected to the transmission component and the support platform, respectively. The second elastic element can be a spring or a rubber block.

[0056] In other embodiments, the second elastic element may not be provided. In this embodiment, when the transmission element is in the near position, the support platform presses down on the first spring by its own weight, and the first spring then presses down on the connecting part of the pawl, thereby causing the pawl's engaging part to flip upward. When the transmission element is in the far position, the support platform cooperates with the support structure only by its own weight.

[0057] In other embodiments, the clearance groove may not be provided. In this embodiment, the claw flips upward from outside the edge of the support platform. In order to ensure that the claw can hold the packaging container firmly, the diameter of the packaging container in this embodiment needs to be larger than the diameter of the support platform.

[0058] In other embodiments, the gripper can take other forms. For example, the gripper may not have an arc-shaped contact surface, and the packaging container may be clamped only by the teeth at different positions. Another example is that the gripper may not have teeth, and the clamping part of the gripper may be rounded, using the rounded clamping part to clamp the packaging container. Yet another example is that the gripper may not be L-shaped, but rather a straight rod-shaped structure. In this case, the connecting part and the clamping part of the gripper are still located at both ends of the gripper, and the hinge point between the transmission component and the gripper is still located in the middle of the gripper. In this embodiment, to ensure that the gripper can firmly clamp the packaging container, a rubber anti-slip layer is fixedly provided on the top wall of the gripper.

[0059] In other embodiments, the guide member may also take other forms. For example, a guide groove may be formed on the jaw and the guide rod may be fixedly mounted on the guide member, in which case the opening of the guide groove must face downwards. In other embodiments, if the lifting control of the transmission member is precise, the guide member may not be required.

[0060] In other embodiments, the first elastic element can also be configured in other ways. For example, a hinged seat is provided below the support platform, and the connecting part is hinged to the hinged seat. The first elastic element is disposed between the transmission member and the chuck. Specifically, the first elastic element is a spring, a support rod is hinged to the chuck, and a sleeve with its rotation center perpendicular to the axis is hinged to the transmission member. The support rod passes through the sleeve, and the spring is sleeved on the support rod. One end of the spring is fixedly connected to the root of the support rod, and the other end is fixedly connected to the end face of the sleeve. As another example, a hinged seat is provided below the support platform, and the connecting part is hinged to the hinged seat. The first elastic element is disposed between the transmission member and the chuck. Specifically, the first elastic element is a rubber block, and both ends of the rubber block are fixedly connected to the transmission member and the chuck, respectively.

[0061] In other embodiments, the connection between the transmission member and the chuck, and the connection between the connecting part and the support platform, can take other forms. For example, the support platform and the connecting part are hinged, and the transmission member and the chuck are also hinged, but the hinge hole of the chuck at one of the two hinge points is an elongated hole.

[0062] In other embodiments, the tilting drive mechanism can take other forms. For example, without a transmission component, the output end of the lifting drive mechanism is directly fixedly connected to the support platform, thereby allowing the lifting drive mechanism to directly drive the support platform to rise and fall. In this embodiment, the connecting part of the claw is hinged to the bottom of the support platform, and a mounting rod is vertically fixedly installed at the bottom of the support platform. A drive cylinder is hinged to the lower end of the mounting rod, and the piston rod end of the drive cylinder is hinged to the claw. The lifting cylinder can be used to drive the claw to tilt up and down.

[0063] Specific embodiments of the filling equipment provided by the present invention:

[0064] See appendix Figure 6 and attached Figure 7 A filling device includes a storage tank area 1, a filling area 2, a weighing area 3, a film-coating and pressing area 5, and a packaging and coding area.

[0065] The storage tank area 1 includes a storage tank conveyor belt 11 and an angular separator 12. The empty cans of the packaging containers are placed on the storage tank conveyor belt 11. During the process of the packaging containers being conveyed by the storage tank conveyor belt 11, they are automatically divided into two parts and arranged neatly under the action of the separator 12 before entering the filling area 2.

[0066] The filling area 2 includes a frame 21, which has a worktable 22 for supporting the packaging containers when transferring them. Transfer conveyor belts 23 are provided on both sides of the frame 21. The upper surface of the transfer conveyor belts 23 is flush with the worktable 22. After the empty can leaves the storage tank conveyor belt 11, it directly reaches the upper side of the transfer conveyor belt 23.

[0067] A filling device 24 is fixedly installed on the frame 21. The filling device 24 has one inlet 241 and two outlets 242, both of which are downward. A two-position three-way valve 243 is installed inside the filling device 24. The two-position three-way valve 243 can connect the inlet 241 and one of the outlets 242. In order to prevent the sealant from becoming sticky or solidifying due to temperature drop during the filling process, a heater can be installed on the filling device 24.

[0068] The frame 21 is also equipped with two lifting clamping devices 25, which are located below the two outlets 242 of the filling device 24. These lifting clamping devices are the same as those described in the above-mentioned embodiment, and will not be elaborated upon here.

[0069] In this embodiment, a transfer device is used to push the packaging container to achieve the transfer of the packaging container. The transfer device consists of a cylinder and a pusher fixedly installed at the piston rod end of the cylinder. The pusher has a V-shaped groove for securing the packaging container. For example, during the process of the packaging container being transferred from the transfer conveyor belt 23 to the support platform 2501, it is pushed by the first transfer device 26. After the packaging container is filled with sealant, it is pushed off the support platform 2501 by the second transfer device 27.

[0070] After being pushed off the support platform 2501, the packaging container enters the weighing area 3. The weighing area 3 includes a weighing platform 31, the top surface of which is flush with the workbench surface 22. Therefore, the third transfer device 28 can push the packaging container directly from the workbench surface 22 onto the weighing platform 31. After weighing, the packaging container is pushed off the weighing platform 31 by the fourth transfer device 29.

[0071] A functional conveyor belt 4 is installed on the side of the workbench 22 away from the storage tank area 1. Packaging containers can directly enter the functional conveyor belt 4 under the push of the fourth transfer device 29. The functional conveyor belt 4 is equipped with three blocking devices, each consisting of a cylinder and a blocking component fixedly mounted on the piston rod end of the cylinder. If the weight of the packaging container does not meet the standard, the container is first blocked by the first blocking device 32 on the functional conveyor belt 4, and then pushed off the functional conveyor belt 4 by the fifth transfer device 33, thus removing the non-conforming product.

[0072] The packaging container that meets the weight standard will reach the second blocking device 51 and the third blocking device 52 and be blocked respectively, completing two steps: covering the top of the sealant inside the packaging container with the packaging film and compacting the sealant. The location of the second blocking device 51 and the third blocking device 52 is the film covering and pressing area 5. Finally, the packaging container reaches the sealing and coding area for coding and sealing operations. This is existing technology and will not be described in detail here.

[0073] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting and clamping device, comprising a support platform for supporting a packaging container and a lifting drive mechanism for driving the support platform to rise and fall, characterized in that, A flipping drive mechanism is provided below the support platform. The flipping drive mechanism includes a transmission component located below the support platform and moving vertically with it. At least two claws are provided at the edge of the support platform. Each claw has a locking part and a connecting part at its two ends. A first elastic element is fixedly connected between the upper side of the connecting part and the lower side of the support platform. The transmission component is hinged to the middle bend of the claws so that when the transmission component rises relative to the support platform, it drives the locking part of the claws to flip upward to clamp the packaging container, and when the transmission component falls relative to the support platform, it drives the locking part of the claws to flip downward so that the claws do not exceed the upper surface of the support platform. The edge of the support platform is formed with a support mating part for supporting the filling equipment so that the transmission component can fall relative to the support platform. A guide post is provided on the support platform. The transmission component has a guide hole that guides and mates with the guide post. A mounting flange is fixed at the lower end of the guide post. A second spring is sleeved on the guide post. The two ends of the second spring are fixedly connected to the mounting flange and the lower side wall of the transmission component, respectively.

2. The lifting clamping device according to claim 1, characterized in that, The lifting and clamping device also includes a guide component that is no higher than the upper surface of the support platform. One of the guide components and the claw has a guide groove, and the other has a guide rod for guiding and engaging with the guide groove.

3. The lifting clamping device according to claim 1, characterized in that, The supporting mating part is a stepped structure formed on the lower side of the edge of the supporting platform.

4. The lifting clamping device according to any one of claims 1-3, characterized in that, The latching portion is formed with at least two teeth at different center distances from the support platform for abutting against the bottom of the side wall of the packaging container.

5. The lifting clamping device according to claim 4, characterized in that, The locking tooth with the smallest distance to the center of the support platform is arc-shaped and has an arc-shaped contact surface. When the locking part is above the upper surface of the support platform, the arc-shaped contact surface faces the center of the support platform.

6. The lifting clamping device according to any one of claims 1-3, characterized in that, The edge of the support platform is provided with a clearance groove for avoiding the claw.

7. The lifting clamping device according to any one of claims 1-3, characterized in that, The locking part of the chuck has a round head.

8. A filling device, characterized in that, The device includes a clamping and lifting mechanism, which comprises a support platform for supporting the packaging container and a lifting drive mechanism for driving the support platform to rise and fall. A tilting drive mechanism is located below the support platform, including a transmission component positioned below the support platform and moving vertically in coordination with it. At least two jaws are located at the edge of the support platform, each jaw having a locking portion and a connecting portion at both ends. A first elastic element is fixedly connected between the upper side of the connecting portion and the lower side of the support platform. The transmission component is hinged to the middle bend of the jaws, allowing the transmission component to move relative to the support platform as it rises. During the process, the clamping part of the driving claw flips upward to clamp the packaging container, and during the descent of the transmission component relative to the support platform, the clamping part of the driving claw flips downward to ensure that the claw does not exceed the upper surface of the support platform. The edge of the support platform is formed with a support mating part for supporting the filling equipment so that the transmission component can descend relative to the support platform. A guide post is provided on the support platform, and a guide hole is provided on the transmission component to guide and mate with the guide post. A mounting flange is fixed at the lower end of the guide post, and a second spring is sleeved on the guide post. The two ends of the second spring are fixedly connected to the mounting flange and the lower side wall of the transmission component, respectively.

9. The filling equipment according to claim 8, characterized in that, The lifting and clamping device also includes a guide component that is no higher than the upper surface of the support platform. One of the guide components and the claw has a guide groove, and the other has a guide rod for guiding and engaging with the guide groove.

10. The filling equipment according to claim 8, characterized in that, The supporting mating part is a stepped structure formed on the lower side of the edge of the supporting platform.

11. The filling equipment according to any one of claims 8-10, characterized in that, The latching portion is formed with at least two teeth at different center distances from the support platform for abutting against the bottom of the side wall of the packaging container.

12. The filling equipment according to claim 11, characterized in that, The locking tooth with the smallest distance to the center of the support platform is arc-shaped and has an arc-shaped contact surface. When the locking part is above the upper surface of the support platform, the arc-shaped contact surface faces the center of the support platform.

13. The filling equipment according to any one of claims 8-10, characterized in that, The edge of the support platform is provided with a clearance groove for avoiding the claw.

14. The filling equipment according to any one of claims 8-10, characterized in that, The locking part of the chuck has a round head.

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