01

Curved arc core pulling and accelerated ejection structure

1. Adopt hot runner to cold runner to feed the glue before the submerged mold:

2. The stroke of the stroke exceeds 50mm, and the core is pulled by the oil cylinder:

3. Curved arc core pulling 1 movement principle: Because the rack is fixed on the row seat, the row seat is connected to the cylinder through T-slots, and the curved arc core pulling slider is fixed on the green braces by screws, which acts as the cylinder When driving the rack to pull outwards, the rack drives the braces of the fixed curved arc core pulling to rotate outwards, so as to achieve the purpose of curved arc core pulling.

4. Bending arc core pulling 2 movement principle:

5. General assembly drawing of curved core pulling and general structure.

02

Large stroke arc core pulling mould

1. The arc core-pulling stroke is relatively large, and the cylinder core-pulling is required:

2. For arc core pulling, you need to divide the slider insert into several pieces, and pull the core along the arc of the product when pulling the core:

3. The slider inserts are connected by a key and positioned by a pin:

4. The position of the key in the slider insert must be avoided to avoid interference between the key and the slider insert when the arc core is pulled:

5. Positioning must be done between the slider inserts to facilitate smooth mold clamping and prevent misalignment:

03

Classic elbow arc core pulling die structure

Adhesive:

Former mold core:

Back mold kernel:

Rear mold position:

Elbow core pulling:

Overall front mold:

Overall rear mold:

Mold opening sequence: