Soft bag sucker

Abstract

The utility model relates to a soft bag suction cup which comprises a suction cup base, a corrugated pipe and a lip side, the corrugated pipe is provided with 2.5-fold corrugations, the half-fold part of the 2.5 fold of the suction cup base is connected with the lip side, the other end of the half-fold part of the 2.5 fold of the suction cup base is connected with the suction cup base, and the suction cup base is provided with a vacuum channel communicated with the corrugated pipe; the lower end of the corrugated pipe is in a shape expanding towards the inclined lower portion, the inclined angle of the lower end of the corrugated pipe is 15 degrees, the lip edge is installed on the edge of the lower end of the corrugated pipe and expands in the direction of the inclined angle of the inclined lower portion, and the inner edge of the lower end of the corrugated pipe shrinks inwards to form an annular contact portion. And a plurality of contact salient points are radially arranged on one surface, facing the product, of the contact part by taking the axial lead of the corrugated pipe as the center. The mechanical arm has the advantages that a traditional supporting ring used for supporting the corrugated pipe is removed, the supporting part and the lip edge with the small inclination angle are made of the soft material, the excellent sealing performance and the excellent grabbing force in dynamic grabbing can be achieved, the requirement for vacuum flow is low, and the mechanical arm is used for carrying packages, small packaging bag cartons and the like which are difficult to process.

Description

Technical Field

[0001] This application belongs to the technical field of suction cups, and in particular relates to a soft bag suction cup. Background Art

[0002] A suction cup is a vacuum suction cup that adsorbs and transports workpieces under the action of vacuum pressure on the adsorption surface of the suction cup. When using a vacuum suction cup to adsorb a workpiece, for example, if the workpiece is tilted, the soft bag suction cup can also be closely attached to the workpiece and can effectively act on the workpiece.

[0003] Existing soft bag suction cups are mostly composed of two-fold or multi-fold bellows, a suction cup seat, and an inner ring that supports the bellows, and are mostly used for grasping bags. However, it is difficult to grasp packages, small bags, packaging bags, cardboard boxes, etc. that are difficult to handle. Summary of the Utility Model

[0004] The technical problem to be solved by this utility model is: to solve the deficiency in the prior art of difficult grasping of small bags, packaging bags, and cardboard boxes, and thus provide a soft bag suction cup.

[0005] The technical solution adopted by this utility model to solve its technical problems is:

[0006] A soft bag suction cup includes a suction cup seat, a bellows, and a lip. The bellows is a 2.5-fold bellows. Half of the 2.5 folds of the suction cup seat is connected to the lip, and the other end is connected to the suction cup seat. The suction cup seat has a vacuum passage communicating with the bellows; the lower end of the bellows is in a shape that expands obliquely downward, and the inclination angle of the lower end of the bellows is 15°. The lip is installed at the lower edge of the bellows and extends along the direction of the oblique downward inclination angle. The inner edge of the lower end of the bellows is reduced in diameter inward to form an annular contact part. On the side of the contact part facing the product, a number of contact bumps are radially arranged around the axis of the bellows.

[0007] Further, a support mechanism for increasing the support force of the lip is provided on the outer side of the lip; the support mechanism includes a number of outwardly protruding reinforcing ribs radially arranged around the axis of the bellows on both the front and back of the lip, and the reinforcing ribs are in a dot-line structure.

[0008] Further, the reinforcing ribs and the contact bumps are arranged in a staggered manner, and adjacent parts overlap.

[0009] Further, it also includes a connecting part provided at the upper end of the bellows. An internal threaded hole is provided in the inner surface of the suction cup seat. The outside of the connecting part has an external thread that is threadedly connected to the internal threaded hole. An internal hexagonal hole for easy disassembly by tools is axially provided inside the connecting part. The internal hexagonal hole coincides with the axis of the internal threaded hole to form a vacuum passage, and the vacuum through hole communicates with the bellows.

[0010] Furthermore, the suction cup seat includes an integrally formed chassis and a mounting portion, the chassis is connected to the mounting portion, the mounting portion is provided with an external thread that cooperates with the vacuum generator, a sealing ring is provided on the outer surface of the chassis and around the mounting portion to improve the sealing performance, and a vacuum passage is axially opened between the chassis and the mounting portion.

[0011] Furthermore, the diameter of the bellows near the suction cup seat should be larger than the diameter of another adjacent bellows, and the inner diameter of the contact portion should be smaller than or equal to the diameter of the adjacent bellows.

[0012] Furthermore, the outer surface of the corrugation in the middle of the bellows and close to the suction cup seat is provided with a plurality of reinforcing ribs which are radially distributed with the axis of the bellows as the center.

[0013] The beneficial effects of the utility model are:

[0014] 1. The support part without supporting inner ring can avoid damaging the internal structure of the bellows as much as possible, occupying the corresponding negative pressure space, and the lip with a smaller inclination angle can better lift the outer surface of the grasped workpiece. The latter can bring excellent sealing performance. The combination of the former and the latter has excellent gripping force in dynamic grasping;

[0015] 2. The soft bag suction cup formed by 2.5-fold circular corrugations has a low demand for vacuum flow and is used to carry difficult-to-handle packages, small bags, packaging bags, cartons, etc. It can carry different types of objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0018] Figure 2 is a bottom-up structural schematic diagram of an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of a top view of the structure of an embodiment of the present application;

[0020] Figure 4 yes Figure 3 AA cross-sectional structural diagram;

[0021] The reference numerals in the figure are:

[0022] 10. Suction cup seat, 11. Vacuum passage, 12. Internal thread hole, 13. Chassis, 14. Mounting part, 15. External thread, 16. Sealing ring, 20. Bellows, 21. Contact part, 22. Contact bump, 23. Connecting part, 24. Hexagon socket hole, 25. Reinforcement rib, 30. Lip, 31. Support mechanism, 311. Suction cup seat. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as limiting the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model creation, unless otherwise specified, the meaning of "plurality" is two or more.

[0025] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0026] The technical solutions of the present application will be described in detail below with reference to the drawings and in combination with the embodiments. Embodiment

[0027] This embodiment provides a soft bag suction cup, including a suction cup seat 10, a corrugated pipe 20, and a lip 30. The corrugated pipe 20 is a 2.5-fold corrugation. Conventionally, it is generally 2-fold or even multi-fold. The grasping force of the 2-fold one is small, and the multi-fold one is prone to generate a large grasping force, which may cause deformation of some adsorbed products. The half-fold part of the 2.5-fold of the suction cup seat 10 is connected to the lip 30, and the other end is connected to the suction cup seat 10. The suction cup seat 10 has a vacuum passage 11 communicating with the corrugated pipe 20. The vacuum passage 11 is generally axially arranged on the suction cup seat 10;

[0028] The lower end of the corrugated pipe 20 is shaped to expand obliquely downward, and the inclination angle of the lower end of the corrugated pipe 20 is 15°. Compared with the traditional lip inclination angle of 45°, this structural design enables the lip to fit the outer surface of the product more closely. The lip 30 is installed at the lower end edge of the corrugated pipe 20 and extends along the direction of the oblique downward inclination angle;

[0029] The inner edge of the lower end of the corrugated pipe 20 is reduced in diameter inward to form an annular contact part 21. This structural design replaces the traditional inner ring, directly expands the gas adsorption channel, can increase the air cyclone volume, and thus generates superior grasping force. Furthermore, when in use, the vacuum flow can be reduced;

[0030] On the side of the contact part 21 facing the product, a number of contact bumps 22 are radially arranged around the axis of the corrugated pipe 20. This structural design is for the contact part 21 to prevent radial deformation. During production, the corrugated pipe 20, the lip 30, the contact part 21, and the contact bumps 22 are integrally formed. The corrugated pipe 20 is made of an elastic material and has a telescopic and flexible cylindrical structure, preferably a rubber material. The corrugated pipe diameter of the corrugated pipe 20 close to the suction cup base 10 should be larger than the adjacent corrugated pipe diameter, and the inner diameter of the contact part 21 should be less than or equal to the adjacent corrugated pipe diameter.

[0031] Support mechanisms 31 for increasing the support force of the lip 30 are provided on both outer sides of the lip 30, namely the back and the front. Preferably, the support mechanisms 31 are also provided on the outer surface of the folded outer surface of the complete corrugation of the corrugated pipe 20 close to the lip 30 for improving the radial support force of the corrugated pipe. In this way, the lip 30 can be made thinner and can be located closely on the outer surface of the adsorbed product / workpiece; The support mechanism 31 includes a number of outwardly protruding reinforcing ribs 311 radially arranged around the axis of the corrugated pipe 20 on both the front and the back of the lip 30. The reinforcing ribs 311 are dot-line structures; The reinforcing ribs 311 and the contact bumps 22 are arranged in a staggered manner, and adjacent parts overlap.

[0032] It also includes a connection part 23 provided at the upper end of the corrugated pipe 20. An internal threaded hole 12 is opened inside the suction cup base 10. The outside of the connection part 23 has an external thread that is threadedly connected to the internal threaded hole 12. An internal hexagonal hole 24 for easy disassembly by tools is axially opened inside the connection part 23. The internal hexagonal hole 24 coincides with the axis of the internal threaded hole 12 to form a vacuum passage 11. A vacuum through hole 11 is formed, and the vacuum through hole 11 is communicated with the corrugated pipe 20.

[0033] The suction cup base 10 includes an integrally formed chassis 13 and a mounting part 14. The chassis 13 is connected to the mounting part 14. The mounting part 14 is provided with an external thread 15 for cooperating and connecting with a vacuum generator. A sealing ring 16 for improving the connection sealing performance of the vacuum generator is provided on the outer surface of the chassis 13 and around the mounting part 14. The vacuum passage 11 is axially opened between the chassis 13 and the mounting part 14 and penetrates through the chassis 13 and the mounting part 14;

[0034] Specifically, the support structure on the corrugated pipe 20 can be a corrugation in the middle of the corrugated pipe 20, and several reinforcing ribs 25 distributed radially around the axis of the corrugated pipe 20 are provided on the outer surface close to the suction cup seat 10. The reinforcing ribs 25 are integrally formed with the corrugated pipe 20. The reinforcing ribs 25 strengthen the radial bearing capacity of the corrugation of the corrugated pipe 20 at this place and increase the service life.

[0035] Taking the above ideal embodiments based on the present application as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this application. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A soft bag suction cup, comprising a suction cup seat, a bellows, and a lip, characterized in that: The bellows comprises a 2.5-fold bellows, wherein the half-folded part of the suction cup seat is connected to the lip, and the other end is connected to the suction cup seat, and the suction cup seat has a vacuum passage connected to the bellows; the lower end of the bellows is in a shape that expands obliquely downward, and the inclination angle of the lower end of the bellows is 15°. The lip is installed at the edge of the lower end of the bellows and expands in the direction of the oblique downward inclination angle. The inner edge of the lower end of the bellows is reduced inward to form a ring-shaped contact part, and the contact part facing the product is radially provided with a plurality of contact protrusions with the axis of the bellows as the center.

2. A soft bag suction cup according to claim 1, characterized in that: The outer side surfaces of the lips are provided with supporting mechanisms for increasing the supporting force.

3. A soft bag suction cup according to claim 2, characterized in that: The support mechanism includes a lip edge front and back, both of which are radially provided with a plurality of outwardly protruding reinforcing ribs with the axial line of the bellows as the center, and the reinforcing ribs are dot-line structures.

4. A soft bag suction cup according to claim 3, characterized in that: The reinforcing ribs and the contact protrusions are arranged alternately, and adjacent parts overlap.

5. The soft bag suction cup according to claim 1, characterized in that: It also includes a connecting part provided at the upper end of the bellows, an internal threaded hole is provided inside the suction cup seat, an external thread is provided on the outside of the connecting part and is threadedly connected to the internal threaded hole, an internal hexagonal hole is axially provided inside the connecting part and is easy to disassemble with tools, and the internal hexagonal hole and the internal threaded hole form a vacuum passage.

6. The soft bag suction cup according to claim 5, characterized in that: The suction cup seat includes an integrally formed chassis and a mounting portion, wherein the chassis is connected to the mounting portion, the mounting portion is provided with an external thread that cooperates with a vacuum generator, and a sealing ring is provided on the outer surface of the chassis and around the mounting portion to improve the connection sealing.

7. The soft bag suction cup according to claim 1, characterized in that: The diameter of the bellows near the suction cup seat should be larger than the diameter of another adjacent bellows, and the inner diameter of the contact portion should be smaller than or equal to the adjacent bellows diameter.

8. The soft bag suction cup according to claim 7, characterized in that: The outer surface of the corrugation in the middle of the bellows and close to the suction cup seat is provided with a plurality of reinforcing ribs which are radially distributed with the axis of the bellows as the center.

Images