Press-to-pick composite nozzle for handling viscous materials

Abstract

This utility model discloses a press-and-pick composite suction nozzle for picking up and placing viscous materials. It includes a nozzle base with a damping seat integrally extending from its side for mounting a damping buffer. A suction rod is integrally formed at the front end of the nozzle base, and a suction head is sleeved at the front end of the suction rod. The damping buffer includes a threaded portion threaded to the damping seat and a fastening bolt for fixing the travel of the threaded portion. A rubber head is connected to the front end of the threaded portion via a telescopic rod. Viewed horizontally, the bottom of the rubber head extends beyond the bottom of the suction head, with a drop distance A between them. The telescopic distance of the telescopic rod is B, where B is greater than A. This novel composite suction nozzle, when picking up components with high viscosity at the bottom, and where the tray holding the components is relatively light, allows the damping buffer to hold the tray in place before the nozzle picks up the components, preventing the tray and components from being lifted up together.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology for automatic material suction, and in particular to a press-to-suction composite nozzle for picking up and putting away viscous materials. Background Technology

[0002] As the name suggests, a pick-and-place machine nozzle is a workpiece used on a pick-and-place machine to pick up and place SMT components. There are various types and materials of pick-and-place machine nozzles on the market. In existing surface mount technology (SMT) processes, the pick-and-place machine uses the nozzle at the end of its placement head to pick up various components from the component tray or pallet and bring them to the correct position on the printed circuit board where they need to be placed.

[0003] However, existing pick-and-place machine nozzles have some drawbacks during use. For example, existing nozzles are subject to impact when picking up components, and they are also subjected to impact during the placement process, making them prone to damage and reducing their lifespan. Therefore, we propose an impact-resistant pick-and-place machine nozzle structure.

[0004] For example, Chinese Patent Publication (Announcement) No.: CN210328443U, patent title: An anti-impact pick-and-place machine nozzle structure, which discloses the following technical solution: "

[0005] To achieve the above objective, this utility model provides the following technical solution: an anti-impact pick-and-place machine nozzle structure, including a fixed bracket...the lower surface of the nozzle housing is vertically fixed and connected to a connecting air pipe", and achieves the following technical effect: "

[0011] 1. The anti-impact pick-and-place machine nozzle structure of this utility model, by installing a fixed plate at the connection between the nozzle and the connecting air pipe and obtaining compression springs on the left and right sides of the upper surface of the fixed plate, can compress the springs when the nozzle picks up the component and is impacted, thereby reducing the impact force on the nozzle...and can further improve the anti-impact effect".

[0005] While this structure can protect the nozzle, in actual use, some components have a high degree of stickiness at the bottom, and the tray on which the components are placed is relatively light. In this case, when the nozzle picks up the components, the tray will be picked up along with the components. Utility Model Content

[0006] The purpose of this invention is to provide a press-to-pick composite nozzle for picking up and putting down viscous materials, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a press-to-pick composite suction nozzle for picking up and placing viscous materials, characterized in that: it includes a suction nozzle base, a damping seat for mounting a damping buffer is integrally extended on the side of the suction nozzle base; a suction rod is integrally provided at the front end of the suction nozzle base, and a suction head is sleeved at the front end of the suction rod; the damping buffer includes a threaded part that is threadedly connected to the damping seat, and a fastening bolt for fixing the stroke of the threaded part; a rubber head is connected to the front end of the threaded part through a telescopic rod; viewed from the horizontal direction, the bottom of the rubber head extends beyond the bottom of the suction head, the drop distance between them is A, the telescopic distance of the telescopic rod is B, and B is greater than A.

[0008] Compared with the prior art, the advantages of this utility model are: when this novel composite nozzle picks up components with high viscosity at the bottom, and the tray on which the components are placed is relatively light, the damping buffer can first hold the tray against the nozzle when the nozzle picks up the components, so that the tray will not be picked up by the nozzle along with the components.

[0009] As an improvement of this utility model, the suction nozzle base is provided with a large inner cavity, and the suction rod is provided with a small inner cavity communicating with the large inner cavity. The purpose of this design is to increase the suction force by reducing the diameter of the tube opening, because the air intake is fixed, and the smaller the diameter of the tube opening, the greater the suction force, thereby increasing the vacuum suction force of the small inner cavity.

[0010] As an improvement of this utility model, the nozzle base is provided with a stepped hole. The purpose of this design is that, during fixing, the head of the bolt can be completely inserted into the stepped hole and will not be exposed. Since the space around the pick-and-place machine nozzle is relatively small when picking up components, this design can prevent the head of the bolt from hitting other objects.

[0011] As an improvement to this utility model, the suction head has a trumpet-shaped external shape and is made of flexible rubber material, which engages with the suction rod. The purpose of this design is that, with this structure, when the suction nozzle is picking up components, the flexible rubber material can adhere more firmly to the components, reducing the likelihood of vacuum leakage and improving the suction rate. Attached Figure Description

[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0013] In the attached diagram:

[0014] Figure 1 This is a perspective view of the press-to-absorb composite nozzle of this utility model.

[0015] Figure 2This is a schematic diagram of the AA side of the suction nozzle described in this utility model.

[0016] Figure 3 This is a schematic diagram of the BB side of the suction nozzle described in this utility model.

[0017] Explanation of reference numerals in the attached diagram: 1. Suction nozzle base; 2. Damping buffer; 3. Damping seat; 4. Suction rod; 5. Suction head; 6. Threaded part; 7. Fastening bolt; 8. Telescopic rod; 9. Rubber head; 10. Large inner cavity; 11. Small inner cavity; 12. Stepped hole; 13. Threaded hole. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] Example 1

[0020] Please refer to Figure 1 -3.

[0021] This embodiment provides a press-and-pick composite suction nozzle for picking up and placing viscous materials, including a suction nozzle base 1. A damping seat 3 for mounting a damping buffer 2 extends integrally from the side of the suction nozzle base 1, and the damping seat 3 is provided with a threaded hole 13 for mounting the damping buffer 2. A suction rod 4 is integrally provided at the front end of the suction nozzle base 1, and a suction head 5 is sleeved at the front end of the suction rod 4.

[0022] The damping buffer 2 includes a threaded portion 6 that is threadedly connected to the damping seat 3, and a fastening bolt 7 that fixes the stroke of the threaded portion 6. A rubber head 9 is connected to the front end of the threaded portion 6 via a telescopic rod 8. Viewed horizontally, the bottom of the rubber head 9 extends beyond the bottom of the suction head 5, with a drop distance of A between them. The telescopic distance of the telescopic rod 8 is B, and B is greater than A. The damping buffer 2 is a commercially available part with a complete range of specifications and models.

[0023] In the embodiments of this application, please refer to Figure 2 The suction nozzle base 1 has a large inner cavity 10, and the suction rod 4 has a small inner cavity 11 that communicates with the large inner cavity 10. This structure increases suction power by reducing the diameter of the pipe opening, because the air intake is fixed, and the smaller the pipe opening diameter, the greater the suction power, thereby increasing the vacuum suction power of the small inner cavity 11.

[0024] In the embodiments of this application, please refer to Figure 3The nozzle base 1 is provided with four stepped holes 12. When the nozzle is fixed, the head of the bolt can be completely inserted into the stepped holes 12 without being exposed. Since the space around the pick-and-place machine nozzle is relatively small when picking up components, this prevents the head of the bolt from hitting other objects.

[0025] Furthermore, the suction head 5 has a funnel-shaped external shape and is made of flexible rubber material, which engages with the suction rod 4. This structure allows the flexible rubber material to adhere more firmly to the components when the nozzle is sucking them up, reducing the risk of vacuum leakage and improving the suction rate.

[0026] It should be noted that in this embodiment, the bottom height of the buffer damper after installation is approximately 13mm lower than the height of the suction surface of the nozzle. When the nozzle descends to begin sucking up material (i.e., components), the bottom of the buffer damper first contacts the material tray and deforms, forming a certain supporting force. When the nozzle descends to the point where it contacts the material surface and sucks up the material, the deformation of the buffer damper reaches its maximum, and the supporting force of the damper on the material tray also reaches its maximum. At this time, the nozzle begins to rise while sucking up the material. During the rise of the nozzle, the pressing force formed by the buffer damper on the material tray supports the tray and prevents it from being lifted up. Each time material is sucked up, the buffer damper first contacts the material tray to form a pressing force on the tray, effectively avoiding the situation where the tray is lifted up simultaneously due to the stickiness of the material when the nozzle sucks up the material.

[0027] Because this solution employs a combined installation of a damper and a new suction nozzle, the damper's stroke, which is lower than the suction nozzle's height, can be adjusted from 0 to 18 mm. In other application scenarios, as long as the equipment space requirements are met (ensuring no collisions occur during the suction process), the damper's position can be adjusted arbitrarily within the available space. Furthermore, the damper's pressing force can be selected according to requirements, within the normal operating range of the Z-axis motor and structure.

[0028] Specific on-site scenario analysis: The original suction nozzle generated a suction force of approximately 300g. The mass of a certain type of material was 0.296g, and the total mass of the material and the tray was 57.475g. The viscosity of a single material was approximately 90g, meaning that a force greater than 90g was required for the material to completely detach from the tray. At this time, when the suction nozzle picked up the material, because the total mass of the tray was lower than the viscosity of the material, the material could not detach from the tray, and the material would be sucked up along with the tray. After replacing it with a newly designed suction nozzle, the added damper can add an extra pressing force (approximately 200g) before the tray is completely sucked up. When the suction nozzle picks up the material, the damper will add a force of approximately 200g to the material tray. When the suction nozzle rises, the extra pressing force will hold the tray down, preventing the material from being too viscous and lifting the tray.

[0029] It should be noted that this type of press-to-pick composite nozzle for picking up and placing viscous materials is not only suitable for pick-and-place machines, but also for other non-standard automated pick-and-place equipment, and even for manual pick-and-place.

[0030] This application discloses a press-to-pickup composite nozzle for handling viscous materials. It can be used to pick up highly viscous materials from various electronic products such as mobile phones, tablets, and computers. The modification cost is low, and it has strong compatibility. The new nozzle is easy to standardize and can be widely applied to various product applications.

[0031] The beneficial effects of this utility model are as follows: When this novel composite nozzle picks up components with high viscosity at the bottom, and the tray on which the components are placed is relatively light, the damping buffer can hold the tray in place first when the nozzle picks up the components, so that the tray and components will not be picked up by the nozzle together.

[0032] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A press-suction composite nozzle for viscous material pick-and-place, characterized by: The device includes a suction base (1), on which a damping seat (3) for mounting a damping buffer (2) is integrally extended; a suction rod (4) is integrally provided at the front end of the suction base (1), and a suction head (5) is sleeved at the front end of the suction rod (4); the damping buffer (2) includes a threaded part (6) that is threaded to the damping seat (3), and a fastening bolt (7) that fixes the stroke of the threaded part (6); a rubber head (9) is connected to the front end of the threaded part (6) via a telescopic rod (8); viewed from the horizontal direction, the bottom of the rubber head (9) extends beyond the bottom of the suction head (5), the drop distance between them is A, the telescopic distance of the telescopic rod (8) is B, and B is greater than A.

2. The press-suction composite nozzle for picking and placing viscous material according to claim 1, characterized in that: The suction nozzle base (1) has a large inner cavity (10), and the suction rod (4) has a small inner cavity (11) that communicates with the large inner cavity (10).

3. The press and suck composite nozzle for viscous material pick-and-place according to claim 1, characterized in that: The nozzle base (1) is provided with a stepped hole (12).

4. The press-to-pick composite nozzle for picking up and placing viscous materials according to claim 1, characterized in that: The suction head (5) has a flared shape and is made of flexible rubber material, and is snapped into the suction rod (4).

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