Suction nozzle assembly

Abstract

The utility model relates to the technical field of flexible printed circuit boards, and discloses a suction nozzle assembly. The suction nozzle assembly comprises a mounting seat assembly and a suction nozzle assembly, wherein the mounting seat assembly is provided with a mounting hole; the suction nozzle is telescopically arranged in the mounting hole, and a ceramic coating is arranged on the surface of an adsorption part, used for sucking materials, of the suction nozzle; and the limiting piece is arranged on the mounting seat assembly, and the limiting piece is in contact fit with the suction nozzle so as to limit rotation of the suction nozzle. According to the suction nozzle assembly provided by the utility model, the ceramic coating is arranged on the suction nozzle, so that the suction nozzle and the FPCA are not adhered by utilizing the non-stickiness of a ceramic material, and suction is realized only in a vacuum adsorption negative pressure manner, so that the FPCA is prevented from being adhered to the suction nozzle to influence the feeding and discharging efficiency during feeding and discharging; and meanwhile, through the telescopic arrangement of the suction nozzle, the impact between the suction nozzle and the FPCA can be reduced, the contact force is reduced, the adhesion caused by the deformation of the FPCA is avoided, and the damage to the FPCA is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flexible printed circuit board technology, and in particular to a suction nozzle assembly. Background Technology

[0002] With the popularization of mobile electronic products and the arrival of the 5G era, electronic products such as mobile phones and wearable devices have increasingly higher requirements for their size and function. The application of flexible printed circuit boards (FPCs) is becoming more and more widespread. FPCs are generally formed by assembling multiple flexible printed circuit assemblies (FPCAs) and other components to form a complete circuit board. As the connection and control components in electronic products, FPCAs are becoming more diverse in shape and size, and their forms are changing. The requirements for production, processing and assembly are also becoming more and more stringent.

[0003] Because FPCA (Plug-in Packaging Assembly) is packed with components in a limited space, customers require that the surface of the components not be sucked during transfer or gripping for loading and unloading to avoid damage or leaving marks. Therefore, loading and unloading are usually done by sucking other areas of the FPCA, such as the blue film (usually PET film) or barcode paper. Existing suction structures mainly use nozzles, which are currently commonly made of rubber or other non-metallic materials (PEEK, etc.). Conventional nozzles tend to cause the PET film to stick to the nozzle surface when suctioning PET film and then vacuuming. Since FPCA is small and lightweight, increasing the airflow can blow the product away. Even surface treatment and anti-static treatment of rubber nozzles cannot effectively solve the problem of material sticking to the nozzle.

[0004] Therefore, the current suction nozzles are prone to material sticking, resulting in a low success rate when loading and unloading FPCA and an inability to detach accurately. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a suction nozzle assembly that can solve the problem in the prior art where the suction nozzle easily sticks to material, resulting in a low success rate and inaccurate detachment during FPCA loading and unloading.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A suction nozzle assembly, comprising:

[0008] Mounting base assembly, wherein the mounting base assembly is provided with mounting holes;

[0009] The suction nozzle, which is retractably disposed within the mounting hole, has a ceramic coating on the surface of its adsorption portion for sucking up material; and

[0010] A limiting member is disposed on the mounting base assembly, and the limiting member contacts and engages with the suction nozzle to restrict the rotation of the suction nozzle.

[0011] In one feasible embodiment, the nozzle is provided with a limiting structure, which abuts against the inner end face of the mounting hole after the nozzle passes through the mounting hole.

[0012] In one feasible embodiment, a buffer spring is further included, one end of which abuts against the end face of the limiting structure of the suction nozzle, and the other end is confined within the mounting hole.

[0013] In one feasible embodiment, a guide member is further included. The mounting base assembly includes a nozzle seat and a guide seat. The nozzle seat is provided with a first mounting hole, and the guide seat is provided with a second mounting hole. The first mounting hole and the second mounting hole together form the mounting hole. A buffer spring is disposed in the first mounting hole, and the guide member is disposed in the second mounting hole. One end of the buffer spring abuts against the end face of the limiting structure of the nozzle, and the other end abuts against the guide member. The guide member is used to limit the radial movement of the nozzle.

[0014] In one feasible embodiment, the device further includes a suction rod, the guide member having a guide hole through which the suction rod passes, and one end of the suction rod communicating with the suction nozzle, and the buffer spring being sleeved on the outside of the suction rod.

[0015] In one feasible embodiment, the guide is a linear bearing.

[0016] In one feasible embodiment, a quick connector is also included, which communicates with the suction rod.

[0017] In one feasible embodiment, the suction rod and the suction nozzle are an integrated structure.

[0018] In one feasible embodiment, the limiting member is provided with a slot, and the circumferential side of the suction nozzle is provided with a limiting plane, the slot cooperating with the limiting plane to restrict the rotation of the suction nozzle.

[0019] In one feasible embodiment, the thickness of the ceramic coating is 0.1~0.2 mm.

[0020] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0021] The suction nozzle assembly provided by this utility model utilizes the non-stick properties of ceramic materials to prevent adhesion between the suction nozzle and FPCA, achieving suction solely through vacuum suction under negative pressure. This ensures that the FPCA does not stick to the suction nozzle during loading and unloading, thus preventing it from affecting loading and unloading efficiency. Furthermore, the telescopic design of the suction nozzle reduces the impact between the nozzle and the FPCA, minimizing contact force and preventing deformation and adhesion of the FPCA, while also avoiding damage to the FPCA. The ceramic coating also possesses high wear resistance and hardness, resulting in a long service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly structure of the suction nozzle assembly provided in this embodiment of the utility model;

[0023] Figure 2 This is an exploded structural diagram of the suction nozzle assembly provided in this embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the suction nozzle assembly provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of an FPCA material provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the suction nozzle provided in an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the limiting member provided in this embodiment of the utility model.

[0028] In the attached diagram, 1 is the mounting base assembly; 11 is the mounting hole; 111 is the stepped structure; 112 is the first mounting hole; 113 is the second mounting hole; 12 is the nozzle seat; 13 is the guide seat; 2 is the nozzle; 21 is the ceramic coating; 22 is the suction hole; 23 is the limiting structure; 24 is the limiting plane; 3 is the limiting component; 31 is the slot; 4 is the buffer spring; 5 is the guide component; 51 is the guide hole; 6 is the suction rod; 7 is the quick connector; 100 is the blue film area; 200 is the component area. Detailed Implementation

[0029] The technical solution of this utility model patent will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are 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.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0032] See Figures 1-3 ,in Figures 1-3 These are, respectively, an assembly structure diagram, an exploded structure diagram, and a cross-sectional structure diagram of the suction nozzle assembly. This embodiment provides a suction nozzle assembly, including:

[0033] Mounting base assembly 1, wherein the mounting base assembly 1 is provided with mounting holes 11;

[0034] The suction nozzle 2 is retractably disposed within the mounting hole 11, and the surface of the suction part of the suction nozzle 2 for sucking up material is provided with a ceramic coating 21; and

[0035] A limiting member 3 is disposed on the mounting base assembly 1, and the limiting member 3 contacts and cooperates with the suction nozzle 2 to restrict the rotation of the suction nozzle 2.

[0036] It is understandable that ceramic coating mainly refers to a spray coating made of ceramic material, applied to the nozzle area by spraying, such as... Figure 3 The nozzle shown is mainly positioned at the point where it contacts the material. Its specific location can be easily adjusted according to actual needs, such as full or partial coverage. The specific material of the ceramic coating is not limited here, as long as it achieves an anti-stick effect. Furthermore, the main body of the nozzle can be made of conventional materials, such as steel or aluminum alloy. Aluminum alloy is preferred as the main material due to its weight-reducing and corrosion-resistant properties.

[0037] It is understood that although this embodiment uses the suction nozzle assembly adsorbing onto the blue film or barcode paper area of ​​FPCA as an example for illustration, the suction nozzle assembly in this embodiment is not limited to its application scenario. The suction nozzle assembly itself can achieve anti-sticking, and can be used to adsorb FPCA blue film or barcode paper and other areas where sticking may occur, or it can be used to adsorb areas where sticking does not occur. Those skilled in the art can use it according to actual needs.

[0038] Specifically, such as Figure 4 The diagram shown illustrates an FPCA material provided in this embodiment. It generally includes a blue film area 100 and a component area 200. The component area 200 needs to avoid damaging the components, so it cannot be suctioned. Therefore, loading and unloading are achieved by suctioning the blue film area 100. The blue film is made of PET film, which is not easily detached after being suctioned by a conventional rubber suction cup. Furthermore, after the blue film is applied, adhesive or other sticky substances may remain on it, causing material adhesion. The solution provided in this embodiment effectively avoids these problems in this scenario. Specifically, the suction nozzle assembly in this embodiment is described using the suction of the blue film area 100 as an example. However, the form and specific shape of the FPCA are not further described here. The examples in this embodiment are for illustrative purposes only and are not intended to impose strict limitations.

[0039] It is understandable that, such as Figure 5 The diagram shown is a schematic diagram of the suction nozzle provided in this embodiment. The suction nozzle 2 has a suction hole 22 at its head. The suction hole 22 is mainly connected to an external negative pressure generating device to form a negative pressure to suck up the material.

[0040] In this embodiment, as Figure 5 As shown, the suction nozzle 2 is provided with a limiting structure 23. After the suction nozzle 2 passes through the mounting hole 11, the limiting structure 23 abuts against the inner end face of the mounting hole 11.

[0041] It is understood that in this embodiment, the suction nozzle 2 is inserted from one end of the mounting hole 11 and extends out from the other end, and the limiting structure 23 of the suction nozzle 2 abuts against the inner end face of the mounting hole 11, correspondingly, as shown in the figure. Figure 3 As shown, the inner end face of the mounting hole 11 is provided with a stepped structure 111 that abuts against the limiting structure 23 of the nozzle 2. Further, in this embodiment, the limiting structure 23 is illustrated as a disc shape, but other shapes are not excluded, such as square or elliptical. The main purpose is to be able to abut against the inner end face of the mounting hole 11 to restrict the installation of the nozzle 2. Further illustration of simple variations is not provided here.

[0042] In this embodiment, as Figure 2 and Figure 3As shown, it also includes a buffer spring 4, one end of which abuts against the end face of the limiting structure 23 of the suction nozzle 2, and the other end is restricted within the mounting hole 11.

[0043] Understandably, when the suction nozzle 2 picks up the FPCA, it retracts under pressure after contacting the material and pressing it together, thus avoiding excessive impact that could damage the FPCA. After picking up the FPCA, when the equipment lifts the suction nozzle assembly, the suction nozzle 2 returns to its original position and extends under the action of the buffer spring 4. Therefore, the buffer spring 4 is preferably in a pre-compressed state before picking up, ensuring that it can be further compressed during picking up and has sufficient elasticity to return to its original shape after picking up, pressing the suction nozzle 2 against the inner end face of the mounting hole 11, thus ensuring overall structural stability.

[0044] In this embodiment, as Figures 1-3 As shown, it also includes a guide member 5. The mounting base assembly 1 includes a nozzle seat 12 and a guide seat 13. The nozzle seat 12 is provided with a first mounting hole 112, and the guide seat 13 is provided with a second mounting hole 113. The first mounting hole 112 and the second mounting hole 113 form the mounting hole 11. The buffer spring 4 is disposed in the first mounting hole 112, and the guide member 5 is disposed in the second mounting hole 113. One end of the buffer spring 4 abuts against the end face of the limiting structure 23 of the nozzle 2, and the other end abuts against the guide member 5. The guide member 5 is used to restrict the radial movement of the nozzle 2.

[0045] Understandably, since the suction nozzle 2 needs to extend and retract, in order to prevent the suction nozzle 2 from deviating radially, in this embodiment, a guide member 5 is set to restrict the radial movement of the suction nozzle 2, forming an axial guide, so that the suction nozzle 2 does not deviate radially when it extends and retracts along the mounting hole 11, thereby improving the accuracy of the suction and unloading operation.

[0046] It is understandable that the combination of the nozzle seat 12 and the guide seat 13 can facilitate the repair and replacement of the nozzle 2 part by simply removing the nozzle seat 12 part when the nozzle 2 part fails during subsequent use, thereby improving the maintenance efficiency and flexibility of the equipment. The nozzle seat 12 and the guide seat 13 can be connected and fixed by conventional methods such as bolts or pins, and can be disassembled. This will not be described in further detail here.

[0047] In this embodiment, as Figures 2-3 As shown, it also includes a suction rod 6. The guide member 5 is provided with a guide hole 51. The suction rod 6 is disposed through the guide hole 51, and one end of the suction rod 6 is connected to the suction nozzle 2. The buffer spring 4 is sleeved on the outside of the suction rod 6.

[0048] It is understandable that the suction rod 6 is mainly an intermediate adapter to facilitate the connection of the suction nozzle 2 to the outside. The suction rod 6 and the suction nozzle 2 can be connected through a simple threaded fit, which will not be described in further detail here. At the same time, in order to realize the extension and retraction of the suction nozzle 2, the suction rod 6 and the guide 5 are movable. It is only necessary to ensure that the suction nozzle 2 provides a guiding function when it extends and retracts, which will not be described in further detail here.

[0049] In this embodiment, the guide member 5 is a linear bearing. Linear bearings are common components in the art and will not be described further here. It should be noted that while this embodiment uses a linear bearing as one implementation of the guide member 5, it is not the only one. For example, the guide member 5 could be a simple sleeve that can be fixedly installed in the second mounting hole 113, with the inner sleeve passing through the suction rod 6 and the end face limiting the buffer spring 4. Those skilled in the art can make simple selections or modifications based on the above description to achieve the desired function of this invention, and these will not be described further here.

[0050] In this embodiment, a quick connector 7 is also included, which is connected to the suction rod 6. It is understood that the quick connector 7 can be a conventional component, with a corresponding connection structure at the end of the suction rod 6 that mates with the quick connector 7. Furthermore, the quick connector 7, suction rod 6, and suction nozzle 2 are internally connected, and the quick connector 7 can be connected to an external vacuum negative pressure generating device to create negative pressure, enabling the suction nozzle 2 to draw up FPCA material.

[0051] It is understood that the suction rod 6 and the suction nozzle 2 in this utility model can be integrated or separate. For example... Figure 2 As shown in the illustration, this embodiment uses a split design as an example. The suction rod 6 and the suction nozzle 2, as well as the suction rod 6 and the quick connector 7, can be connected by threads, and the connection can be sealed with sealant or sealing tape. Further details are not elaborated here. In other embodiments, the suction rod 6 and the suction nozzle 2 are an integrated structure, which can reduce the number of parts and enhance structural stability and sealing.

[0052] like Figure 6 The diagram shown is a structural schematic of the limiting member provided in this embodiment. Figures 1-2 , Figure 5 In this embodiment, the limiting member 3 is provided with a slot 31, and the suction nozzle 2 is provided with a limiting plane 24 on its circumferential side. The slot 31 and the limiting plane 24 cooperate to restrict the rotation of the suction nozzle 2.

[0053] Specifically, such as Figure 5As shown, the suction nozzle 2 in this embodiment has a cuboid structure in the middle, and the limiting plane 24 is a plane. Therefore, after the limiting member 3 is installed on the mounting base assembly 1, the slot 41 restricts the suction nozzle 2, preventing it from rotating during operation. Combined with the guide member 5, this ensures that the suction nozzle 2 can only extend and retract, without radial deflection or rotation, thus guaranteeing the accuracy and precision of suction. Furthermore, the limiting member 3 can be fixed to the mounting base assembly 1 using bolts or pins. This can be achieved by those skilled in the art using conventional design methods, and will not be elaborated upon here.

[0054] In this embodiment, the thickness of the ceramic coating 21 is 0.1~0.2mm. Designing it within the 0.1~0.2mm range effectively balances processing difficulty and ensures that no sticking occurs. The specific thickness can be adjusted according to actual needs.

[0055] The working process and principle of the suction nozzle assembly of this utility model:

[0056] The vacuum suction route inside the suction nozzle assembly consists of the suction nozzle 2, the suction rod 6, and the quick connector 7. The internal air passages of the three are connected sequentially. The quick connector 7 is connected to an external vacuum generator. The internal air passages create negative pressure at the suction hole 22 of the suction nozzle 2 to generate suction. The mounting base assembly 1 is fixedly installed on the equipment (such as a robotic arm). When suctioning materials, after the suction nozzle 2 contacts the object to be suctioned, it will continue to compress a certain distance under the action of the buffer spring 4 (which can be determined according to the actual situation) to ensure stable contact between the suction nozzle 2 and the object to be suctioned. At this time, the buffer spring 4 is further compressed, and the suction rod 6 pushes outward along the guide 5. Then the external vacuum generator works to generate negative pressure to hold the object to be suctioned. In this suction structure, the limiting member 3 can ensure that the position of the suction nozzle 2 will not rotate. The guide 5 and the suction rod 6 work together to ensure that the suction nozzle 2 does not deflect radially when it extends and retracts, ensuring the accuracy and stability of suction.

[0057] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0058] The suction nozzle assembly provided by this utility model, by setting a ceramic coating 21 on the suction nozzle 2, can utilize the non-stick properties of the ceramic material to prevent adhesion between the suction nozzle 2 and the FPCA, and achieve suction only through vacuum suction negative pressure, thereby ensuring that the FPCA will not stick to the suction nozzle 2 during loading and unloading, affecting the loading and unloading efficiency; at the same time, by setting the suction nozzle 2 to extend and retract, the impact between the suction nozzle 2 and the FPCA can be reduced, the contact force can be reduced to avoid deformation of the FPCA and sticking, and damage to the FPCA can be avoided; and the ceramic coating 21 has high wear resistance and hardness, so its service life is long.

[0059] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A suction nozzle assembly, characterized in that, include: Mounting base assembly, wherein the mounting base assembly is provided with mounting holes; The suction nozzle, which is retractably disposed within the mounting hole, has a ceramic coating on the surface of its adsorption portion for sucking up material; and A limiting member is disposed on the mounting base assembly, and the limiting member contacts and engages with the suction nozzle to restrict the rotation of the suction nozzle.

2. The suction nozzle assembly according to claim 1, characterized in that, The nozzle is provided with a limiting structure, and after the nozzle passes through the mounting hole, the limiting structure abuts against the inner end face of the mounting hole.

3. The suction nozzle assembly according to claim 2, characterized in that, It also includes a buffer spring, one end of which abuts against the end face of the limiting structure of the suction nozzle, and the other end is confined within the mounting hole.

4. The suction nozzle assembly according to claim 3, characterized in that, It also includes a guide member. The mounting base assembly includes a nozzle seat and a guide seat. The nozzle seat is provided with a first mounting hole, and the guide seat is provided with a second mounting hole. The first mounting hole and the second mounting hole together form the mounting hole. The buffer spring is disposed in the first mounting hole, and the guide member is disposed in the second mounting hole. One end of the buffer spring abuts against the end face of the limiting structure of the nozzle, and the other end abuts against the guide member. The guide member is used to limit the radial movement of the nozzle.

5. The suction nozzle assembly according to claim 4, characterized in that, It also includes a suction rod, the guide member is provided with a guide hole, the suction rod is disposed through the guide hole, and one end of the suction rod is connected to the suction nozzle, and the buffer spring is sleeved on the outside of the suction rod.

6. The suction nozzle assembly according to claim 5, characterized in that, The guide component is a linear bearing.

7. The suction nozzle assembly according to claim 5, characterized in that, It also includes a quick connector that communicates with the suction rod.

8. The suction nozzle assembly according to claim 5, characterized in that, The suction rod and the suction nozzle are an integrated structure.

9. The suction nozzle assembly according to claim 1, characterized in that, The limiting component is provided with a slot, and the circumferential side of the suction nozzle is provided with a limiting plane. The slot and the limiting plane cooperate to restrict the rotation of the suction nozzle.

10. The suction nozzle assembly according to claim 1, characterized in that, The thickness of the ceramic coating is 0.1~0.2mm.

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