A patch mouthpiece

Abstract

The utility model relates to a kind of patch suction nozzle, including suction nozzle main body, the suction nozzle main body side is provided with negative pressure vacuum connection hole, suction nozzle head is fixedly arranged below the suction nozzle main body, the suction nozzle head bottom is provided with suction nozzle suction patch surface;Through negative pressure vacuum connection hole connection negative pressure vacuum source, suction nozzle head is less than suction nozzle main body, avoid interference point, utilize suction nozzle suction patch surface cover entire patch on a plane to prevent patch uneven. Negative pressure vacuum hole provides negative pressure vacuum and absorbs patch, symmetric mode absorbs patch more firmly, negative pressure vacuum groove increases the contact area of negative pressure and patch, effectively handles piece exception.

Description

Technical Field

[0001] This utility model belongs to the field of patch nozzle technology, specifically relating to a patch nozzle. Background Technology

[0002] Traditional surface mount technology (SMT) machines typically use silicone nozzles for placement operations. However, existing technology suffers from the following problems: Large placement accuracy deviation: This station requires high precision. After the silicone nozzle picks up the chip, deformation occurs, leading to inaccurate positioning during CCD imaging, resulting in low placement yield and high rework volume. Incompatibility with other types of chips: Silicone nozzles can only adhere to the entire chip surface. If the chip has a hole in the middle, it may not be able to be picked up, resulting in poor compatibility. Short lifespan of silicone nozzles: Silicone nozzles have poor applicability to current operating conditions and a short lifespan. Summary of the Invention

[0003] The purpose of this invention is to provide a patch nozzle that solves the problems of low patch yield, poor compatibility, short lifespan, and high failure rate in existing mechanisms.

[0004] The purpose of this invention is achieved as follows: A patch suction nozzle includes a nozzle body, a negative pressure vacuum connection hole on the side of the nozzle body, and a suction head fixedly disposed below the nozzle body. The bottom surface of the suction head is provided with a suction surface for adsorbing patches. The suction head adsorbs patches through the suction surface for adsorbing patches.

[0005] The suction nozzle has a negative pressure vacuum hole inside the suction surface.

[0006] The device is provided with three negative pressure vacuum holes, which are located at the center point of the suction surface of the nozzle and symmetrically on both sides. Multiple negative pressure vacuum holes can provide a comprehensive and uniform adsorption effect.

[0007] The suction nozzle has negative pressure vacuum holes symmetrically arranged on both sides of the suction surface, and a negative pressure vacuum groove is provided on the outer side of the hole. The negative pressure vacuum groove can increase the adsorption area of ​​the negative pressure vacuum hole.

[0008] The top of the nozzle body is symmetrically provided with nozzle fixing screw holes. The nozzle fixing screw holes are used to install the nozzle body.

[0009] A connecting limit post is provided between the two fixing nozzle screw holes. The connecting limit post improves the installation accuracy of the nozzle body.

[0010] The main material of the nozzle is polytetrafluoroethylene.

[0011] The beneficial effects of this utility model are: Connect the negative pressure vacuum source through the negative pressure vacuum connection hole. The nozzle head is smaller than the nozzle body to avoid interference points. Use the nozzle to cover the entire patch and keep it on a flat plane to prevent the patch from being uneven.

[0012] The negative pressure vacuum holes provide negative pressure to hold the patch in place, and the symmetrical arrangement makes the patch more firmly attached. The negative pressure vacuum groove increases the contact area between the negative pressure and the patch, effectively handling the problem of patch falling off.

[0013] The nozzle body is fixed to the connector by fixing the nozzle screw holes to prevent it from falling off. The connection limit post is used to install the main body so that the entire contact surface is on a horizontal plane. After installation, the accuracy is higher and the problem of chip placement yield is solved.

[0014] Using polytetrafluoroethylene (PTFE) material effectively solves problems such as low patch yield, poor compatibility, and short lifespan. Attached Figure Description

[0015] Figure 1 This is a bottom view of the main body of the patch suction nozzle of this utility model.

[0016] Figure 2 This is a side view of the main body of the patch nozzle of this utility model.

[0017] Figure 3 This is a top view of the nozzle body of a patch nozzle according to the present invention.

[0018] In the diagram: 1. Negative pressure vacuum hole; 2. Negative pressure vacuum groove; 3. Suction nozzle for suction surface; 4. Connecting limit post; 5. Negative pressure vacuum connection hole; 6. Suction nozzle head; 7. Fixing screw hole for suction nozzle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0020] like Figure 1-3 As shown, a patch suction nozzle includes a suction nozzle body, a negative pressure vacuum connection hole 5 is provided on the side of the suction nozzle body, a suction nozzle head 6 is fixedly provided below the suction nozzle body, and a suction nozzle suction surface 3 is provided on the bottom surface of the suction nozzle head 6.

[0021] Furthermore, a negative pressure vacuum hole 1 is provided inside the suction surface 3 of the suction nozzle.

[0022] Furthermore, the number of negative pressure vacuum holes 1 is three, and the three negative pressure vacuum holes 1 are respectively located at the center point of the suction surface 3 of the suction nozzle and symmetrically arranged on both sides.

[0023] When the device is in operation, the entire nozzle body moves down close to the patch. When it reaches the predetermined position, the negative pressure vacuum valve is opened, and the negative pressure gas enters the nozzle head 6 through the negative pressure vacuum connection hole 5. The nozzle head 6 uses the negative pressure vacuum hole 1 to hold the patch, the patch feeding mechanism peels the patch backward, and the nozzle lifts up to complete the patch suction process.

[0024] This application has advantages such as multi-channel adsorption, good sealing, and long service life, and is used to achieve high-precision and low-failure-rate placement operations. Example 2

[0025] like Figure 1-3 As shown, a patch suction nozzle includes a suction nozzle body, a negative pressure vacuum connection hole 5 is provided on the side of the suction nozzle body, a suction nozzle head 6 is fixedly provided below the suction nozzle body, and a suction nozzle suction surface 3 is provided on the bottom surface of the suction nozzle head 6.

[0026] Furthermore, a negative pressure vacuum hole 1 is provided inside the suction surface 3 of the suction nozzle.

[0027] Furthermore, three negative pressure vacuum holes 1 are provided, which are symmetrically arranged at the center point and on both sides of the suction surface 3 of the nozzle. The multiple negative pressure vacuum holes 1 form a distributed adsorption structure, which effectively disperses the vacuum pressure and avoids the stress concentration problem of components caused by single-point adsorption.

[0028] Furthermore, negative pressure vacuum grooves 2 are provided on the outer sides of the negative pressure vacuum holes 1 symmetrically arranged on both sides of the suction surface 3 of the nozzle. The negative pressure vacuum grooves 2 can guide the vacuum pressure to diffuse towards the edge, reducing vacuum attenuation caused by air leakage during the adsorption process.

[0029] Furthermore, the top of the suction nozzle body is symmetrically provided with suction nozzle fixing screw holes 7.

[0030] Furthermore, a connecting limiting post 4 is provided between the two fixing nozzle screw holes 7. The connecting limiting post 4 provided on the top of the nozzle body and the fixing nozzle screw holes 7 form a dual positioning mechanism to ensure accurate alignment and eliminate installation deviations.

[0031] Furthermore, the main body material of the suction nozzle is polytetrafluoroethylene (PTFE). This can reduce wear and tear after long-term use and maintain adsorption accuracy.

[0032] During use, when installing the nozzle body, align the connecting limiting post 4 on the top of the nozzle body with the operating robot body and insert it vertically to ensure a complete fit. Utilizing the symmetrical nozzle fixing screw holes 7, two screws are used to securely connect the nozzle to the robot's screw holes, tightening the screws evenly to prevent the nozzle body from tilting and causing recognition errors. The nozzle body is connected to a vacuum source through the negative pressure connection hole 5 to ensure a tight seal.

[0033] When the mechanism is running, the entire nozzle body moves down close to the patch. When it drops to the predetermined position, the negative pressure vacuum valve is opened, and the negative pressure gas enters the nozzle head 6 through the negative pressure vacuum connection hole 5. The nozzle head 6 uses the negative pressure vacuum hole 1 to hold the patch. The patch feeding mechanism peels the patch backward, and the nozzle lifts up to complete the patch suction process.

[0034] This application has advantages such as multi-channel adsorption, good sealing, and long service life, and is used to achieve high-precision and low-failure-rate placement operations.

Claims

1. A patch nozzle, comprising a nozzle body, characterized in that: The suction nozzle body has a negative pressure vacuum connection hole on its side, and a suction nozzle head is fixedly installed below the suction nozzle body. The bottom surface of the suction nozzle head has a suction nozzle plate surface. The suction nozzle plate surface has a negative pressure vacuum hole inside, and negative pressure vacuum grooves are symmetrically arranged on both sides of the suction nozzle plate surface.

2. The patch nozzle according to claim 1, characterized in that: The number of negative pressure vacuum holes is set to three, and the three negative pressure vacuum holes are respectively located at the center point of the suction surface of the suction nozzle and at symmetrical positions on both sides.

3. The patch nozzle according to claim 1, characterized in that: The top of the nozzle body is symmetrically provided with nozzle fixing screw holes.

4. A patch nozzle according to claim 3, characterized in that: A connecting limit post is provided between the two fixed suction nozzle screw holes.

5. A patch nozzle according to claim 1, characterized in that: The main material of the nozzle is polytetrafluoroethylene.

Images