Grabbing, expanding and assembling mechanism for packaging equipment

Abstract

The invention relates to the technical field of packaging equipment, in particular to the technical field of packaging and assembling equipment, and discloses a grabbing, expanding and assembling mechanism for packaging equipment, which comprises a grabbing and expanding finger, a translation part, a driving part, a control sleeve, a translation base sleeve and an unloading sleeve, each extraction and expansion finger and the corresponding translation part are combined into an extraction and expansion unit, and the number of the extraction and expansion units is two or more; the translation part is movably connected with one or two of the extraction and expansion finger and the translation base sleeve, and under the constraint of the translation part, the extraction and expansion finger only moves in parallel; the driving part is matched with or movably connected with the taking and expanding finger or the control sleeve; when the control sleeve and the translation base sleeve generate axial relative displacement, the taking and expanding finger moves in parallel; the unloading sleeve is arranged on the outer layer and can move in the axial direction. According to the invention, the taking and expanding finger translates, grabs and further expands the elastic film element, so that the elastic film element integrally moves along with the grabbing, expanding and assembling mechanism and is conveyed to an assembling position, and then the elastic film element is unloaded from the taking and expanding finger through the axial movement of the unloading sleeve and is sleeved into a proper mounting position, so that an efficient and automatic assembling process is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging equipment technical field, especially the packaging assembly equipment technical field, and in particular to a kind of grabbing expansion assembly mechanism for packaging equipment. BACKGROUND

[0002] Packaging is essential for various products in daily life, and many products also need to set up exhaust and leak-proof devices on the packaging, especially many catering products, which need to be packaged in hot state or heated directly in the packaging. In this state, the continuous heat in the packaging causes the packaging to deform or leak, which leads to its inability to use normally. At this time, it is necessary to involve exhaust and leak-proof. Therefore, some elastic film element exhaust and leak-proof devices have been invented, which can cleverly solve the problem of exhaust and leak-proof. However, because the elastic film element is soft in texture, and also needs to be properly expanded and stretched during assembly, the assembly process is relatively complex, and the existing technology cannot realize the specific assembly of such small-size elastic film elements, which makes it difficult for such newly invented technology and device to realize efficient automated production.

[0003] At present, there is a lack of a reasonable structure assembly equipment or technology to handle the assembly of such elastic film elements. SUMMARY

[0004] In view of the problems existing in the prior art, the present application provides a grabbing expansion assembly mechanism for packaging equipment to solve the above technical problems.

[0005] In order to achieve the above purpose, the present application provides a grabbing expansion assembly mechanism for packaging equipment, characterized in that it comprises a grabbing and expanding finger, a translation part, a driving part, a control sleeve, a translation base sleeve and an unloading sleeve; each grabbing and expanding finger and translation part combination is a grabbing and expanding unit, and the grabbing and expanding unit has two or more than two; the translation part is movably connected with one or both of the grabbing and expanding finger or the translation base sleeve, and under the constraint of the translation part, the grabbing and expanding finger only moves in parallel; the driving part is matched or movably connected with the grabbing and expanding finger or the control sleeve, and when the control sleeve and the translation base sleeve move axially relative to each other, the grabbing and expanding finger moves in parallel; the unloading sleeve is arranged on the outer layer and can move axially.

[0006] Further preferably, the translation part is composed of at least two translation connecting rods, each grabbing and expanding finger is movably connected with the translation connecting rod, and the translation base sleeve is also movably connected with the translation connecting rod, the grabbing and expanding finger, the translation connecting rod and the translation base sleeve combination constitute a four-bar mechanism, so that the grabbing and expanding finger only moves in parallel; the driving part is composed of a driving connecting rod, and the grabbing and expanding finger and the control sleeve are movably connected with the driving connecting rod, and when the control sleeve and the translation base sleeve move axially relative to each other, the grabbing and expanding finger moves in parallel.

[0007] Further optionally, the translation part is composed of at least two gears, the translation base sleeve is rotatably connected to the gear at the central axis position of the gear, the expansion finger is connected to the non-central position of the gear, and the connection position of the expansion finger on different gears is similar or the same, so that the expansion finger only moves in parallel; the driving part is composed of an axially driven rack provided on the control sleeve, the driving rack meshes with the gear, and the expansion finger moves in parallel when there is relative displacement between the control sleeve and the translation base sleeve in the axial direction.

[0008] Optionally, the translation part consists of at least one translation slide rail and a sliding hole, or a sliding sleeve, or a sliding groove. The translation slide rail and the sliding hole, or the sliding groove, or the sliding sleeve are respectively disposed on the expansion finger or the translation base sleeve. The translation slide rail is slidably connected to the sliding hole, or the sliding groove, or the sliding sleeve, so that the expansion finger only moves in parallel. The driving part consists of a cam or a protrusion disposed on the expansion finger or the translation slide rail, which cooperates with the cam slide rail disposed on the control sleeve to form a cam mechanism. When there is a relative displacement between the control sleeve and the translation base sleeve along the axial direction, the expansion finger moves in parallel.

[0009] As another preferred embodiment, when the expanding finger is in the contracted position, the circumferential profile of the outer side of the expanding finger tip is smaller than the inner profile of the edge of the assembled elastic film element; when the expanding finger is in the expanded position, the circumferential profile of the outer side of the expanding finger tip is larger than the inner profile of the edge of the assembled elastic film element.

[0010] As another preferred embodiment, when the expanding finger is in the expanded position, the circumferential outer contour of the fingertip is smaller than the inner contour of the unloading sleeve; when the unloading sleeve moves downward along the axial direction, it can reach the expanding finger and slightly pass the fingertip.

[0011] As another preferred embodiment, the gripping expansion assembly mechanism is located on the periphery of the assembly wheel of the packaging equipment. The inner ring of the assembly wheel is provided with a cam guide rail. The control sleeve, translation base sleeve, and unloading sleeve are all fixed with cams, which combine with the cam guide rail provided on the inner ring of the assembly wheel to form a cam mechanism. The movement and position of the control sleeve, translation base sleeve, and unloading sleeve are controlled by the curve design of the cam guide rail.

[0012] Optionally, the control sleeve, translation base sleeve, and unloading sleeve are all connected to a servo motor, and the movement and position of the control sleeve, translation base sleeve, and unloading sleeve are controlled by the servo motor.

[0013] Beneficial effects: By setting up a translation section, the present invention enables the take-up expanding fingers to move in parallel, expand outward from a fully contracted state to grasp the elastic film element, and continue to expand the elastic film element outward to the required size for assembly. Then, it moves down to align with the assembly position, and finally, the axial movement of the unloading sleeve unloads the elastic film element from the take-up expanding fingers and fits it into the appropriate installation position, thus realizing a highly efficient and automatic assembly process. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0016] Figure 1 This is a cross-sectional view of the fully contracted state of the extended fingers in a specific embodiment 1 of the present invention; Figure 2 This is a cross-sectional view of a specific embodiment 1 of the present invention, showing the expansion finger fully expanded and the unloading sleeve lowered. Figure 3 This is a cross-sectional view of the fully contracted state of the extended fingers in specific embodiment 2 of the present invention; Figure 4 This is a three-dimensional bottom view of the fully contracted state of the extended fingers in specific embodiment 2 of the present invention; Figure 5 This is a cross-sectional view of the fully expanded finger in a specific embodiment 2 of the present invention; Figure 6 This is a three-dimensional bottom view of the fully expanded state of the extended fingers in a specific embodiment 2 of the present invention; Figure 7 This is a cross-sectional view of a specific embodiment 2 of the present invention, showing the expansion finger fully expanded and the unloading sleeve lowered. Figure 8 This is a three-dimensional bottom view of a specific embodiment 2 of the present invention, showing the expansion finger fully expanded and the unloading sleeve lowered. Figure 9 This is a cross-sectional view of the fully contracted state of the extended fingers in specific embodiment 3 of the present invention; Figure 10 This is a cross-sectional view of a specific embodiment 3 of the present invention, showing the expansion finger fully expanded and the unloading sleeve lowered. Figure 11 This is a cross-sectional view of the fully contracted state of the extended fingers in specific embodiment 4 of the present invention; Figure 12 This is a cross-sectional view of a specific embodiment 4 of the present invention, showing the expansion finger fully expanded and the unloading sleeve lowered. Wherein: 1 is the expansion finger, 2 is the elastic film element, 3 is the translation part, 31 is the translation connecting rod, 33 is the gear, 5 is the drive part, 51 is the drive connecting rod, 53 is the drive rack, 7 is the control sleeve, 8 is the translation base sleeve, and 9 is the unloading sleeve. Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other; the described embodiments are only some embodiments of the present invention, and not all embodiments; furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0018] The embodiments of this application can be extended to assembly mechanisms or equipment for elastic elements in any product. Applying this invention enables automated and efficient installation while ensuring installation quality. The embodiments of this application can also be applied to any other foreseeable scenarios requiring the assembly of elastic elements.

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] See Figure 1 , Figure 2 Specific Embodiment 1: A gripping and expanding assembly mechanism for packaging equipment includes a gripping and expanding finger 1, a translation part 3, a driving part 5, a control sleeve 7, a translation base sleeve 8, and an unloading sleeve 9. Each gripping and expanding finger 1 and the translation part 3 are combined to form a gripping and expanding unit, and two or more gripping and expanding units can be provided. The gripping and expanding finger 1 is slidably connected to the translation part 3 provided on the translation base sleeve 8, and the gripping and expanding finger 1 can slide on the translation part 3 to achieve parallel movement. The roller of the driving part 5 provided on the gripping and expanding finger 1 can roll on the track provided on the control sleeve 7. When the control sleeve 7 and the translation base sleeve 8 undergo axial relative displacement, the gripping and expanding finger 1 moves parallel to grip and expand the elastic film element 2. The unloading sleeve 9 is provided on the outer layer and can move axially. When the elastic film element 2 is gripped, expanded, and transported to the assembly position, the unloading sleeve 9 moves downward to unload the elastic film element 2 from the gripping and expanding finger 1 and assemble it into the appropriate position.

[0021] See Figures 3 to 8Specific embodiment 2: A gripping and expanding assembly mechanism for packaging equipment includes a gripping and expanding finger 1, a translational connecting rod 31, a driving connecting rod 51, a control sleeve 7, a translational base sleeve 8, and an unloading sleeve 9. Each gripping and expanding finger 1 and two translational connecting rods 31 combine to form a gripping and expanding unit, and there are two or more gripping and expanding units. In this embodiment, the translational part is composed of at least two translational connecting rods 31, and each gripping and expanding finger 1 is rotatably connected to at least two translational connecting rods 31. The translational base sleeve 8 is also rotatably connected to the translational connecting rods 31. The gripping and expanding finger 1, the translational connecting rods 31, and the translational base sleeve 8 combine to form a four-bar linkage, so that the gripping and expanding finger 1 only performs parallel movement. The drive unit is composed of a drive linkage 51. The take-up expansion finger 1 and the control sleeve 7 are movably connected to the drive linkage 51. When the control sleeve 7 and the translation base sleeve 8 have relative displacement along the axial direction, the take-up expansion finger 1 moves in parallel to grasp and expand the elastic film element 2. The unloading sleeve 9 is set on the outer layer and can move along the axial direction. After the elastic film element 2 is grasped, expanded and transported to the assembly position, the unloading sleeve 9 moves downward to unload the elastic film element 2 from the take-up expansion finger 1 and assemble it into the appropriate position. In this embodiment, a total of six take-up expansion units are set, that is, six take-up expansion fingers 1 that can move in parallel work at the same time, which ensures the stability and reliability of the equipment.

[0022] See Figures 9 to 10 Specific implementation example 3: A gripping and expanding assembly mechanism for packaging equipment includes a gripping and expanding finger 1, a gear 33, a drive rack 53, a control sleeve 7, a translation base sleeve 8, and an unloading sleeve 9. In this embodiment, the translation part is composed of at least two gears 33. Each gripping and expanding finger 1 and at least two gears 33 combine to form a gripping and expanding unit. Two or more gripping and expanding units can be provided. The translation base sleeve 8 is rotatably connected to the gear 33 at the central axis position of the gear 33. The gripping and expanding finger 1 is movably connected to the non-central position of the gear 33. The connection positions of the gripping and expanding finger 1 on different gears 33 are similar or adjacent. Similarly, the take-up expanding finger 1, gear 33, and translation base sleeve 8 are combined to form a translation unit, so that the take-up expanding finger 1 can only move in parallel. The control sleeve 7 is provided with an axially driven rack 53 that meshes with the gear 33. When there is a relative displacement between the control sleeve 7 and the translation base sleeve 8 in the axial direction, the take-up expanding finger 1 moves in parallel to grasp and expand the elastic film element 2. The unloading sleeve 9 is provided on the outer layer and can move in the axial direction. After the elastic film element 2 is grasped, expanded, and transported to the assembly position, the unloading sleeve 9 moves downward to unload the elastic film element 2 from the take-up expanding finger 1 and assemble it into the appropriate position.

[0023] See Figures 11 to 12Specific implementation example 4: A gripping and expanding assembly mechanism for packaging equipment includes a gripping and expanding finger 1, a translating part 3, a driving part 5, a control sleeve 7, a translating base sleeve 8, and an unloading sleeve 9; each gripping and expanding finger 1 and the translating part 3 are combined to form a gripping and expanding unit, and two or more gripping and expanding units can be provided; the translating part 3 is composed of at least one translating slide rail provided on the gripping and expanding finger 1, and cooperates with a sliding hole, or sliding sleeve, or sliding groove provided on the translating base sleeve 8, so that the gripping and expanding finger 1 moves parallel when sliding on the translating slide rail; the translating slide rail and the sliding hole, or sliding groove, or sliding sleeve can also be interchangeably provided on the translating base sleeve or the gripping and expanding finger. The end of the translation part 3 is provided with a roller of the drive part 5, and the control sleeve 8 is provided with a cam slide rail, which cooperates with the roller of the drive part 5 to form a cam mechanism. When the control sleeve 7 and the translation base sleeve 8 have relative displacement along the axial direction, the take-expanding finger moves in parallel to control the opening and closing of the grasping finger 1 so as to grasp and expand the elastic film element 2. The unloading sleeve 9 is provided on the outer layer and can move along the axial direction. After the elastic film element 2 is grasped, expanded and transported to the assembly position, the unloading sleeve 9 moves downward to unload the elastic film element 2 from the take-expanding finger 1 and assemble it into the appropriate position.

[0024] In the above embodiments, when the taking finger 1 is in the contracted position, the circumferential contour of the outer side of the fingertip of the taking finger 1 is smaller than the inner contour of the edge of the assembled elastic film element 2; when the taking finger 1 is in the expanded position, the circumferential contour of the outer side of the fingertip of the taking finger is larger than the inner contour of the edge of the assembled elastic film element 2; at the same time, when the taking finger 1 is in the expanded position, the circumferential contour of the outer side of the fingertip of the taking finger 1 is smaller than the inner contour of the unloading sleeve 9; when the unloading sleeve 9 moves downward along the axial direction, it can reach the taking finger 1 and slightly pass the fingertip position of the taking finger.

[0025] In the above embodiment, the gripping and expanding assembly mechanism is located around the assembly wheel of the packaging equipment. A cam guide rail is provided on the inner ring of the assembly wheel. Cams are fixed to the control sleeve 7, the translation base sleeve 8, and the unloading sleeve 9, forming a cam mechanism by combining with the cam guide rail on the inner ring of the assembly wheel. The movement and position of the control sleeve 7, the translation base sleeve 8, and the unloading sleeve 9 are controlled by the curve design of the cam guide rail. Alternatively, the control sleeve 7, the translation base sleeve 8, and the unloading sleeve 9 can all be connected to a servo motor, and the movement and position of the control sleeve, the translation base sleeve, and the unloading sleeve can be controlled by the servo motor to achieve the same purpose.

[0026] In summary, as can be seen from the above embodiments, by designing a simple and reasonable translation mechanism that allows the grasping and expanding fingers to perform efficient and accurate translational movements, enabling them to easily grasp and expand the elastic film element and deliver it to the assembly position, and then having a reasonably designed unloading mechanism, the elastic film element can be easily unloaded from the assembly fingers and assembled into the appropriate position, thus achieving a highly efficient and high-quality assembly effect. All the above embodiments include these features; that is, by properly using these features, the assembly problem of elastic elements can be solved.

[0027] The above are merely optional embodiments of the present invention. It should be noted that those skilled in the art may make several improvements and modifications based on the principles of the present invention without creative effort. All other embodiments obtained thereby should be considered within the scope of protection of the present invention.

Claims

1. A gripping and expanding assembly mechanism for packaging equipment, characterized in that, It includes a take-up expanding finger, a translation part, a drive part, a control sleeve, a translation base sleeve, and an unloading sleeve; each take-up expanding finger and the translation part are combined to form a take-up expanding unit, and there are two or more take-up expanding units; the translation part is movably connected to one or two of the take-up expanding fingers or the translation base sleeve, and under the constraint of the translation part, the take-up expanding finger only moves in parallel; the drive part cooperates with or is movably connected to the take-up expanding finger or the control sleeve, and the take-up expanding finger moves in parallel when the control sleeve and the translation base sleeve undergo axial relative displacement; the unloading sleeve is located on the outer layer and can move along the axial direction.

2. The gripping and expanding assembly mechanism for packaging equipment according to claim 1, characterized in that: The translation unit consists of at least two translation linking rods. Each expansion finger is rotatably connected to the translation linking rod, and the translation base sleeve is also rotatably connected to the translation linking rod. The expansion finger, translation linking rod, and translation base sleeve are combined to form a four-bar linkage, so that the expansion finger only moves in parallel. The driving unit consists of a driving linking rod. The expansion finger and the control sleeve are movably connected to the driving linking rod, and the expansion finger moves in parallel when there is relative displacement between the control sleeve and the translation base sleeve along the axial direction.

3. The gripping and expanding assembly mechanism for packaging equipment according to claim 1, characterized in that: The translation part consists of at least two gears. The translation base sleeve is rotatably connected to the gear at the central axis of the gear. The expansion finger is connected to the non-central position of the gear. The connection positions of the expansion finger on different gears are similar or the same, so that the expansion finger only moves in parallel. The driving part consists of an axially driven rack set on the control sleeve. The driving rack meshes with the gear. When there is relative displacement between the control sleeve and the translation base sleeve in the axial direction, the expansion finger moves in parallel.

4. The gripping and expanding assembly mechanism for packaging equipment according to claim 1, characterized in that: The translation part consists of at least one translation slide rail and a sliding hole, or a sliding sleeve, or a sliding groove. The translation slide rail and the sliding hole, or the sliding groove, or the sliding sleeve are respectively disposed on the expansion finger or the translation base sleeve. The translation slide rail is slidably connected to the sliding hole, or the sliding groove, or the sliding sleeve, so that the expansion finger only moves in parallel. The driving part consists of a cam or a protrusion disposed on the expansion finger or the translation slide rail, which cooperates with the cam slide rail disposed on the control sleeve to form a cam mechanism. When there is a relative displacement between the control sleeve and the translation base sleeve along the axial direction, the expansion finger moves in parallel.

5. The gripping and expanding assembly mechanism for packaging equipment according to claims 1 to 4, characterized in that: When the expanding finger is in the contracted position, the circumferential contour of the outer side of the expanding finger tip is smaller than the inner contour of the edge of the assembled elastic film element; when the expanding finger is in the expanded position, the circumferential contour of the outer side of the expanding finger tip is larger than the inner contour of the edge of the assembled elastic film element.

6. The gripping and expanding assembly mechanism for packaging equipment according to claims 1 to 4, characterized in that: When the expanding finger is in the expanded position, the circumferential outer contour of the fingertip is smaller than the inner contour of the unloading sleeve; when the unloading sleeve moves downward along the axial direction, it can reach the expanding finger and slightly pass the fingertip.

7. The gripping and expanding assembly mechanism for packaging equipment according to claims 1 to 4, characterized in that: The gripping and expanding assembly mechanism is located on the periphery of the assembly wheel of the packaging equipment. The inner ring of the assembly wheel is provided with a cam guide rail. The control sleeve, translation base sleeve, and unloading sleeve are all fixed with cams, which combine with the cam guide rail provided on the inner ring of the assembly wheel to form a cam mechanism. The movement and position of the control sleeve, translation base sleeve, and unloading sleeve are controlled by the curve design of the cam guide rail.

8. The gripping and expanding assembly mechanism for packaging equipment according to claims 1 to 4, characterized in that: The control sleeve, translation base sleeve, and unloading sleeve are all connected to servo motors, which control the movement and position of the control sleeve, translation base sleeve, and unloading sleeve.

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