Component Mounting Device Load Control and Pusher Pin Synchronization
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Solution Overview
Problem
Existing component mounting systems face issues with excessive load due to impact disturbances during the pushup operation, which can lead to component damage such as cracking or breaking.
Innovation Solution
A component mounting device with a configuration that includes a head, a pusher pin, a nozzle, a raising and lowering device, a load measuring section, and a control device to maintain the load within a specified range by synchronizing the movement of the raising and lowering member with the pusher pin, thereby suppressing the impact of disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional component mounting device is used, then the device structure is simple, but it cannot prevent bacterial growth in the pooling area and requires frequent disassembly for cleaning
Solution Approach 1:
The pooling area is segmented into an upper pooling area and a lower pooling area separated by a partition wall. This segmentation prevents bacterial contamination by eliminating the stagnant pooling region where bacteria could grow, while maintaining a relatively simple overall device structure through the addition of just one partition component.
2Adaptability or versatility
If the pooling area is designed to accommodate large components, then component placement flexibility is improved, but liquid may pool in the pooling area and cannot be discharged
Solution Approach 1:
The pooling area is divided into an upper pooling area for accommodating large components and a lower pooling area for liquid discharge. The partition wall creates a slope that allows liquid to flow downward to the discharge opening while providing sufficient space in the upper area for component placement, thus achieving both adaptability and preventing harmful liquid pooling.
Solution Approach 2:
The pooling area transitions from a flat two-dimensional surface to a three-dimensional sloped structure. The partition wall creates a vertical dimension that directs liquid flow downward while maintaining horizontal space for component accommodation, eliminating liquid pooling while preserving placement flexibility.
3Ease of manufacture
If the pooling area is disassembled for cleaning, then cleaning access is improved, but the pooling area cannot be cleaned in place and requires disassembly
Solution Approach 1:
The lower pooling area is designed with a discharge opening that allows liquid to be drained automatically during the mounting process. This self-draining feature reduces the need for manual disassembly and cleaning operations, enabling the system to maintain itself with minimal intervention and reducing cleaning time.
4Productivity
If liquid is supplied to the mounting table, then component mounting functionality is improved, but liquid may pool and cause bacterial growth or damage to electronic components
Solution Approach 1:
The pooling area is segmented into an upper pooling area that slopes downward and a lower pooling area with a discharge opening. This segmentation allows liquid to flow continuously from the upper to the lower area and be discharged, preventing stagnant pooling and bacterial growth while maintaining the productivity benefits of liquid supply for component mounting.
Solution Approach 2:
The pooling area is designed with a three-dimensional sloped structure created by the partition wall, transforming the liquid flow from potential stagnation on a flat surface to continuous downward flow. This dimensional change ensures liquid is discharged before it can cause bacterial growth or component damage, while preserving the functional benefits of liquid supply for mounting operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively prevents cracking or deformation of components by maintaining precise load control, ensuring accurate and safe collection and mounting of components.
Implementation Method 1
a suction nozzle to pick up a component
Implementation Method 2
a pusher pin to push up the component from the underside of the sheet
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A component mounting device including: a head; a nozzle configured to collect the component; a first raising and lowering device configured to raise and lower a raising and lowering member with respect to the head; a second raising and lowering device configured to be raised and lowered together with the raising and lowering member by the first raising and lowering device, and configured to raise and lower the nozzle relative to the raising and lowering member; a peeling device configured to peel the component to be collected by the nozzle from the sheet by pushing the component from an underside of the sheet using a pusher pin; a load measuring section configured to measure a load applied to the nozzle; and a control device configured to control the first raising and lowering device and the second raising and lowering device such that the raising and lowering member is lowered to a position at which the nozzle contacts the component, then, in a state with the nozzle contacting the component, control the peeling device to raise the pusher pin to push the component up from the underside of the sheet, and control the second raising and lowering device such that the load measured by the load measuring section is maintained within a specified load range, and control the first raising and lowering device such that the raising and lowering member is raised when the pusher pin is raised.