Key points of lifter design:
Disengagement stroke calculation: First, we need to determine disengagement stroke of lifter. This step is basis for designing lifter to ensure that lifter can be smoothly separated from product during opening and closing of mold.
Slope calculation: According to determined ejection stroke, slope of lifter is calculated next. Size of slope directly affects demolding efficiency of lifter and demolding quality of product.
Design of lateral movement sealing position: Design sealing position of lifter when it moves laterally. Horizontal sealing is preferred because it is simpler and more reliable.
Consideration of vertical sealing: If vertical sealing is selected, it is necessary to carefully evaluate whether glue position of product buckle position will be lateral deformed due to movement of lifter. This may affect quality and accuracy of product.
Sealing strategy under space constraints: If space for lateral movement of lifter is limited, vertical sealing can be considered. In this case, special attention should be paid to space utilization and product deformation during design.
Comprehensive evaluation: When designing lifter, factors such as release stroke, slope, sealing method and space constraints should be considered comprehensively to ensure that lifter design not only meets requirements of product demoulding, but also ensures stability of mold and qualified rate of product.
1: Design of lifter
1: Design idea of lifter:
1). First calculate tripping stroke of lifter, then calculate slope of lifter according to ejection stroke;

 

2). Then make sealing position of lateral movement direction of lifter. Horizontal sealing is preferred, and vertical sealing can also be used. When using vertical sealing, it should be noted whether glue position of product buckle position will deform laterally with lifter. If space for lateral movement of lifter is limited, vertical sealing can be used

 

3). Then make processing reference position of lifter. Processing reference position is based on ejection direction of glue position;

4). From processing reference position, make inclined surface of lifter downward

 

5). Adjust thickness of lateral movement direction of lifter. When the total length of lifter is less than 100mm, minimum thickness of lifter is guaranteed to be 6mm. If the total length exceeds 100mm, minimum thickness of lifter is 8mm. If this thickness cannot be achieved, shorten the total length of lifter.

 

6). Make two sides of lifter sealed with glue. Sealing can be determined according to strength and position of lifter. Whether it needs to exceed side of glue position, if strength is not enough, it can exceed side of lifter. Just meet sealing requirements

 

 

7). Make avoidance hole for lifter to pass through mold plate;

 

8). Make pipe block of lifter

 

9). Make design of lifter seat

 

10). Be careful to avoid sharp corners as much as possible

 

Design ideas of lifter can be carried out according to following steps:
Determine release stroke:
First, calculate release stroke of lifter according to requirements of mold design. This is minimum moving distance required for lifter to completely detach from product.
Calculate slope:
Calculate slope of lifter based on release stroke. Slope is usually expressed as an angle or ratio, which determines degree of inclination of lifter and affects difficulty of demolding.
Design sealing position for lateral movement:
Next, design sealing position of lifter during lateral movement. Design of sealing position should ensure that lifter can completely detach from product during movement, while avoiding deformation of product glue position.
Choose sealing method:
Sealing can be horizontal or vertical. Horizontal sealing is simple to operate and easy to implement; vertical sealing is used when space is limited, but it is necessary to pay attention to its potential impact on deformation of product glue position.
Evaluate space constraints:
If space for lateral movement of lifter is limited, vertical sealing can be considered, but it must be ensured that product glue position will not be deformed undesirably due to movement of lifter.
Consider strength of product buckle position:
When designing, ensure that strength of product buckle position is sufficient to withstand force during demolding and avoid buckle position breakage.
Simulate movement process:
Use CAD software to simulate movement process of lifter, check interference between lifter and product and other parts of mold to ensure smooth movement.
Material and structure optimization:
According to movement mode and force conditions of lifter, select suitable materials, optimize its structural design to improve durability and reliability.
Safety and reliability considerations:
When designing lifter, consider safety of operation and reliability of mold to ensure that lifter can work stably during production process.
Detailed design and drawing production:
Finally, according to above ideas, complete detailed design of lifter and produce drawings to provide accurate guidance for manufacturing and assembly.
Throughout design process, it is necessary to constantly review and verify each step to ensure rationality and effectiveness of lifter design.