Part suction mechanism

Abstract

The utility model provides a part suction mechanism, and belongs to the technical field of part suction. Comprising a positioning platform, and the positioning platform is used for bearing multiple sets of parts to be sucked and providing a positioning reference; the device further comprises a suction assembly and a jacking assembly, the suction assembly is used for sucking the parts, and the jacking assembly is used for jacking the multiple sets of parts located on the positioning platform to the suction position of the suction assembly at the same time. The part suction mechanism can safely and rapidly achieve accurate suction and placement of multiple sets of parts on automatic part feeding equipment, the suction precision and efficiency can be improved, the stability is enhanced, automatic integration is facilitated, the labor cost is reduced, and the production requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of part suction, specifically relates to a part suction mechanism. BACKGROUND

[0002] In modern manufacturing industry, the accurate grabbing and transferring of parts are the key link in production process. At present, the part automatic feeding equipment in injection molding industry has the problems of insufficient stability and precision in the part suction mechanism technology, which often causes unstable production in the automatic production process of parts.

[0003] With the development of technology, the injection mold is arranged as multi-cavity, which also has higher and higher requirements for the suction mechanism and production efficiency of the part automatic feeding equipment. Multi-cavity means that parts need to be grouped, and parts will be affected by cumulative error of arrangement, uneven thickness of material and size tolerance problem. These problems are more likely to cause the problems of insufficient positioning precision of suction mechanism, unstable part suction and missing suction, thereby causing unstable feeding of part automatic feeding equipment, which has certain adverse risks for production, such as too large part gap and position deviation, affecting the overall performance of the product.

[0004] However, the suction mechanism on the market is often affected by the problems of uneven thickness of material and size error, which is easy to cause the problems of unstable part suction and missing suction, thereby causing the problems of defects during injection molding and mold pressing, and the parts are easy to be scratched during suction, which cannot realize stable automatic production. Moreover, the traditional suction mechanism on the market has complex operation, consumes a lot of time, reduces the production efficiency, and has high labor cost. UTILITY MODEL CONTENTS

[0005] In order to solve the problems of insufficient feeding stability and missing suction of part automatic feeding equipment, and realize stable suction of multiple groups of parts with high precision, the utility model provides a part suction mechanism.

[0006] The utility model provides a part suction mechanism, which comprises a positioning platform, the positioning platform is used for bearing multiple groups of parts to be sucked and providing a positioning reference; further comprising a suction assembly and a jacking assembly, the suction assembly is used for sucking parts, and the jacking assembly is used for jacking multiple groups of parts on the positioning platform to the suction position of the suction assembly at the same time. The part suction mechanism can improve the suction precision and efficiency, enhance the stability, facilitate the automatic integration, reduce the labor cost, and meet the production demand.

[0007] Preferably, the suction assembly comprises a plurality of groups of independently arranged suction nozzles, the plurality of groups of suction nozzles are installed in an elastic floating connection mode, and the suction nozzles are connected with a negative pressure adsorption system.

[0008] By adopting the above technical scheme, the independent suction nozzle is elastically and floatingly connected, the part size difference is adapted, the suction leakage is reduced, the parts are buffered and protected, and the negative pressure adsorption ensures efficient and stable suction.

[0009] Further preferably, a guide groove adapted to the size of the part is arranged on one side of the suction nozzle close to the jacking assembly, and the guide groove is used to guide the part to adhere to the adsorption plane of the suction nozzle.

[0010] By adopting the above technical scheme, the suction nozzle guide groove is adapted to the part, accurately guides the part to adhere to the adsorption plane, improves the suction precision and stability, and speeds up the suction speed.

[0011] Further preferably, guide protrusions for limiting the longitudinal deviation of the part are further arranged on both sides of the guide groove, and the part is guided into the guide groove through the guide protrusions when jacked up.

[0012] By adopting the above technical scheme, the guide protrusions can limit the longitudinal deviation of the part, accurately guide the part into the guide groove, and further improve the adhesion precision of the part and the suction stability.

[0013] Preferably, a plurality of reset units are further included, the reset units are connected with the suction assembly, and are used to drive the suction nozzle to automatically reset after the jacking action of the jacking assembly is completed.

[0014] By adopting the above technical scheme, the reset unit automatically resets the suction nozzle, ensures the consistency of each suction action, and improves the automation degree and working efficiency of the suction mechanism.

[0015] Further preferably, the reset unit includes a connecting rod and a spring, both ends of the connecting rod are connected to the mounting plate and the suction nozzle respectively, the spring is sleeved on the connecting rod, and both ends of the spring are in abutment with the mounting plate and the suction nozzle respectively.

[0016] By adopting the above technical scheme, the reset unit is composed of the spring and the connecting rod, has simple structure and low cost, can stably provide reset elastic force, and ensures that the suction nozzle is timely and reliably reset.

[0017] Preferably, the jacking stroke of the jacking assembly is greater than the height of the part, and the over-jacking setting of the jacking assembly ensures that the part completely adheres to the adsorption plane of the suction nozzle.

[0018] By adopting the above technical scheme, the over-jacking design of the jacking assembly can ensure that the part completely adheres to the adsorption plane of the suction nozzle, effectively solves the problem of suction leakage, and improves the reliability and stability of suction.

[0019] Preferably, the jacking assembly is driven by a pneumatic cylinder, a hydraulic cylinder or a linear motor.

[0020] By adopting the technical scheme, the driving mode can be flexibly selected from a pneumatic cylinder, a hydraulic cylinder or a linear motor according to different working scenes and requirements, so that the jacking assembly is highly adaptable and has better performance.

[0021] Preferably, the jacking assembly comprises a base and a pneumatic cylinder, the pneumatic cylinder is fixed on the base, and the end of the output shaft of the pneumatic cylinder is fixedly connected with the positioning platform. This design stably fixes the pneumatic cylinder, connects the output shaft with the positioning platform, accurately and stably drives the positioning platform to ascend, and ensures reliable part jacking action.

[0022] Preferably, the positioning and guiding assembly is further arranged, the two ends of the positioning platform are provided with positioning holes, and the positioning and guiding assembly is provided with positioning pins matched with the positioning holes.

[0023] By adopting the technical scheme, the positioning pins are matched with the positioning holes, the positioning platform and the positioning and guiding assembly are accurately centered, the position of part jacking and sucking is ensured to be accurate, and the working precision of the mechanism is improved.

[0024] Compared with the prior art, the beneficial results of the utility model lie in that:

[0025] The part sucking mechanism can safely and quickly realize accurate sucking and placing of multiple parts on a part automatic feeding device, is designed to realize efficient and stable sucking of parts, meets the demand of automatic production, does not need real-time manual monitoring, can be applied to multiple specifications, guarantees the production efficiency, solves the sucking stability of the part automatic feeding device, and solves the problem of insufficient sucking precision caused by uneven material thickness and size tolerance. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and serve the purpose of explaining principles of the present utility model. Other embodiments and many of the intended advantages of the embodiments will be readily appreciated as the same becomes better understood by reference to the following detailed description. Elements of the drawings are not necessarily to scale. Like reference numerals designate corresponding similar parts throughout the various figures. The same reference numerals in different figures identify corresponding similar components.

[0027] Figure 1 Fig. 1 shows a schematic diagram of the overall structure of a part sucking mechanism according to an embodiment of the present utility model;

[0028] Figure 2 Fig. 2 shows a schematic diagram of the structure after removing a jacking assembly according to an embodiment of the present utility model;

[0029] Figure 3 Fig. 3 shows a schematic diagram of the structure of a part sucking mechanism according to another embodiment of the present utility model; Figure 2 Fig. 4 shows a schematic diagram of the enlarged structure of part A in Fig. 3; Fig. 5 shows a schematic diagram of the enlarged structure of part B in Fig. 3.

[0030] Figure 4 A front view of the part suction mechanism according to an embodiment of the present application is shown.

[0031] Figure 5 A top view of the part suction mechanism according to an embodiment of the present application is shown.

[0032] Figure 6 To along Figure 5 A cross-sectional view along A-A.

[0033] Meaning of each number in the figure: 1, positioning platform; 2, suction assembly;

[0034] 21, suction nozzle; 211, guide groove; 212, guide protrusion; 22, reset unit; 221, connecting rod; 222, spring;

[0035] 3, jacking assembly; 4, positioning and guiding assembly; 5, positioning hole; 6, positioning pin. DETAILED DESCRIPTION

[0036] The present application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the application are shown in the drawings.

[0037] The existing part automatic injection molding is affected by the mold cavity space structure, and the part suction mechanism needs to be designed, and the suction mechanism is often affected by the uneven material thickness and size error problems, and the part suction is unstable, and the suction is not stable. The problem of leakage causes the problem of injection molding and mold pressing, and the part is easily scratched during suction, and stable automatic production cannot be realized.

[0038] The part suction mechanism of the embodiment solves the problem of part suction instability and leakage caused by uneven material thickness and size error; the elastic pressing mode of the mechanism avoids the scratching during part suction process; the automatic suction and ejection function solves the problem of automatic production.

[0039] The present application provides a part suction mechanism, Figure 1 A schematic view of the overall structure of the part suction mechanism according to an embodiment of the present application is shown, as Figure 1As shown, the part suction mechanism includes a positioning platform 1 for carrying multiple groups of parts to be sucked and providing a positioning reference; further includes a suction assembly 2 for sucking the parts, and a jacking assembly 3 for jacking the multiple groups of parts on the positioning platform 1 to the suction position of the suction assembly 2 at the same time. The part suction mechanism in this embodiment improves the suction precision and efficiency, enhances the stability, facilitates the automation integration, reduces the labor cost, and meets the production requirements.

[0040] Preferably, referring to Figure 1 and Figure 2 , the suction assembly 2 includes several groups of independently arranged suction nozzles 21, the several groups of suction nozzles 21 are installed through elastic floating connection, and the suction nozzles 21 are connected with a negative pressure suction system. By designing the elastic floating connection of the independent suction nozzles 21, the suction assembly 2 can adapt to the differences between the parts, reduce the suction leakage, protect the parts, and ensure efficient and stable suction through the negative pressure suction.

[0041] Further, referring to Figure 2 and Figure 3 , a guide groove 211 adapted to the size of the parts is arranged on the side of the suction nozzle 21 close to the jacking assembly 3, and the guide groove 211 is used to guide the parts to adhere to the suction surface of the suction nozzle 21. The two sides of the guide groove 211 are also provided with guide protrusions 212 for limiting the longitudinal deviation of the parts, and the parts are guided into the guide groove 211 through the guide protrusions 212 when jacked. The suction nozzle 21 guide groove 211 adapts to the parts, accurately guides them to adhere to the suction surface, the guide protrusions 212 can limit the longitudinal deviation of the parts, guide them to accurately enter the guide groove 211, and improve the adhesion precision of the parts and the suction stability.

[0042] As a preferred embodiment, referring to Figure 1 and Figure 4 , the suction mechanism further includes several reset units 22 connected with the suction assembly 2, for driving the suction nozzle 21 to automatically reset after the jacking action of the jacking assembly 3 is completed. The reset unit 22 allows the suction nozzle 21 to automatically reset, ensures the consistency of each suction action, and improves the automation degree and working efficiency of the suction mechanism.

[0043] In a specific embodiment, the reset unit 22 includes a connecting rod 221 and a spring 222, the two ends of the connecting rod 221 are connected to the mounting plate and the suction nozzle 21 respectively, and the spring 222 is sleeved on the connecting rod 221, and the two ends of the spring 222 are in abutment with the mounting plate and the suction nozzle 21 respectively. By adopting the spring 222 and the connecting rod 221 to form the reset unit 22, the structure is simple and the cost is low, and the reset elastic force can be stably provided to ensure that the suction nozzle 21 resets in time and reliably.

[0044] In other embodiments, the reset unit 22 can also be directly provided as an elastic component such as a pneumatic damper.

[0045] Preferably, the jacking stroke of the jacking assembly 3 is greater than the height of the part, and the over-jacking design of the jacking assembly 3 ensures that the part is completely attached to the adsorption plane of the suction nozzle 21. The over-jacking design of the jacking assembly 3 ensures that the part is completely attached to the adsorption plane of the suction nozzle 21, effectively solves the problem of missing suction, and improves the reliability and stability of suction. The jacking assembly 3 is driven by a gas cylinder, a hydraulic cylinder or a linear motor. Depending on different working scenarios and needs, the driving mode can be flexibly selected from a gas cylinder, a hydraulic cylinder or a linear motor, so that the jacking assembly 3 has strong adaptability and better performance.

[0046] In this embodiment, the jacking assembly 3 includes a base and a gas cylinder, the gas cylinder is fixed on the base, and the end of the output shaft of the gas cylinder is fixedly connected with the positioning platform 1. In this embodiment, the part to be sucked is placed on the other side of the base. This design stably fixes the gas cylinder, connects the output shaft with the positioning platform 1, and can accurately and stably drive the positioning platform 1 to rise, so as to ensure the reliability of the part jacking action.

[0047] Further preferably, referring to Figure 5 and Figure 6 , the positioning and guiding assembly 4 is further provided, the two ends of the positioning platform 1 are provided with positioning holes 5, and the positioning and guiding assembly 4 is provided with positioning pins 6 matched with the positioning holes 5. In this embodiment, the mounting plate is fixedly connected with the positioning and guiding assembly 4, the jacking assembly 3 and the suction assembly 2 are connected as a whole through the positioning and guiding assembly 4, and a complete suction mechanism is formed. The positioning pins 6 and the positioning holes 5 are matched to accurately center the positioning platform 1 and the positioning and guiding assembly, ensure the accuracy of the part jacking and suction position, and improve the working precision of the mechanism.

[0048] The technical scheme of the utility model improves the positioning precision, can effectively guarantee the stability of the part automatic feeding equipment; the operation is simple and fast, manual intervention is not needed, and the single part suction time is reduced; and the utility model has good universality and adaptability.

[0049] The specific working principle of the utility model embodiment is as follows:

[0050] When the part automatic feeding injection molding equipment is running, the part is positioned on the positioning platform 1, the mechanical arm is connected with the suction mechanism, and is moved to a preset position area, at this time, the positioning pins 6 and the positioning holes 5 at the two ends of the positioning platform 1 are matched to ensure that the suction assembly 2 and the part on the positioning platform 1 have relatively accurate positions, the control system PLC of the part automatic feeding equipment sends a signal to the gas cylinder on the jacking assembly 3 to execute upward jacking to lift the part from the positioning platform 1 into the suction nozzle 21 guide groove 211, until the part is attached to the plane of the suction nozzle 21, at this time, the vacuum generator starts to quickly extract the air in the suction nozzle 21 to form negative pressure, and the suction nozzle 21 and the part are tightly adsorbed by the negative pressure.

[0051] After confirming that the part is firmly adsorbed, the cylinder on the jacking assembly 3 is retracted to complete the part suction, and then the mechanical arm connected with the suction mechanism carries the sucked part to the designated position, and the multiple suction nozzles 21 connected on the suction assembly 2 are independently connected in a floating manner. In order to avoid the situation that the part fails to reach the position, the suction nozzles 21 connected on the suction assembly 2 are lifted by the jacking assembly 3 when the jacking assembly 3 acts, so as to ensure that the part is completely attached to the suction nozzles 21, and when the jacking assembly 3 is retracted, the springs 222 on the suction assembly 2 will automatically reset the multiple suction nozzles 21 independently, so as to solve the problem of missing suction, and the reciprocating movement realizes automatic production.

[0052] The specific embodiments of the present application are described above, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0053] The specific embodiments of the present application are described above, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0054] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The word 'comprising' does not exclude the existence of elements or steps not listed in the claims. The word 'a' or 'one' before an element does not exclude the existence of multiple such elements. The simple fact that certain measures are recorded in mutually different dependent claims does not mean that the combination of these measures cannot be used to improve. Any reference signs in the claims should not be interpreted as limiting the scope.

Claims

1. A part suction mechanism characterized by, The positioning platform is used for carrying multiple groups of parts to be sucked and providing a positioning reference; The suction assembly is used for sucking the parts, and the jacking assembly is used for jacking the multiple groups of parts on the positioning platform to a suction position of the suction assembly at the same time.

2. The part suction mechanism according to claim 1, characterized by, The suction assembly comprises multiple groups of independently arranged suction nozzles, the multiple groups of suction nozzles are installed in an elastic floating connection mode, and the suction nozzles are connected with a negative pressure suction system.

3. The part suction mechanism according to claim 2, characterized by, A guide groove matched with the size of the parts is arranged on one side of the suction nozzle close to the jacking assembly, and the guide groove is used for guiding the parts to adhere to a suction plane of the suction nozzle.

4. The part suction mechanism according to claim 3, characterized by, Guide protrusions for limiting longitudinal deviation of the parts are further arranged on both sides of the guide groove, and the parts are guided into the guide groove through the guide protrusions when being jacked up.

5. The part suction mechanism according to claim 2, characterized by, Multiple reset units are further arranged, the reset units are connected with the suction assembly, and are used for driving the suction nozzles to automatically reset after the jacking action of the jacking assembly is completed.

6. The part suction mechanism according to claim 5, characterized by The reset unit comprises a connecting rod and a spring, two ends of the connecting rod are connected to a mounting plate and a suction nozzle respectively, the spring is sleeved on the connecting rod, and two ends of the spring are abutted with the mounting plate and the suction nozzle respectively.

7. The part suction mechanism according to claim 2, characterized by The jacking stroke of the jacking assembly is greater than the height of the parts, and the over-jacking setting of the jacking assembly ensures that the parts completely adhere to the suction plane of the suction nozzle.

8. The part suction mechanism according to claim 1, characterized by, The jacking assembly is driven by a gas cylinder, a hydraulic cylinder or a linear motor.

9. The part suction mechanism according to claim 1, characterized by, The jacking assembly comprises a base and a gas cylinder, the gas cylinder is fixed on the base, and an end of an output shaft of the gas cylinder is fixedly connected with the positioning platform.

10. The part suction mechanism according to claim 1, characterized by, A positioning and guiding assembly is further arranged, both ends of the positioning platform are provided with positioning holes, and the positioning and guiding assembly is provided with positioning pins matched with the positioning holes.

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