CN217944207U - Double-shot moulding's slider forming structure of loosing core - Google Patents
Double-shot moulding's slider forming structure of loosing core Download PDFInfo
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- CN217944207U CN217944207U CN202222406977.6U CN202222406977U CN217944207U CN 217944207 U CN217944207 U CN 217944207U CN 202222406977 U CN202222406977 U CN 202222406977U CN 217944207 U CN217944207 U CN 217944207U
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Abstract
The utility model discloses a double-shot moulding's slider shaping structure of loosing core, include: the shovel base is installed on the front template, the sliding block is arranged on the rear template in a sliding mode, the top end of the shovel base is connected with a shovel base driving oil cylinder, the shovel base driving oil cylinder drives the shovel base to move up and down, the front end of the shovel base is a driving block, the rear end of the sliding block is provided with a driving groove, the bottom of the driving groove is transversely provided with a connecting block, the front end of the connecting block is located in the driving groove, the width of the front end of the connecting block is smaller than that of the driving groove, and the rear end of the connecting block is connected with the sliding block driving oil cylinder; the utility model discloses carry out institutional advancement on ordinary mould, design into the oil cylinder drive form with the shovel base, behind the compound die, slide around driving the slider through the shovel base and obtain a ebonite die cavity and the secondary flexible glue die cavity of moulding plastics, when guaranteeing to reach double-colored injection moulding process demand, compare with traditional double-colored mould injection moulding, reduced the process of moulding plastics, improved production efficiency, reduced manufacturing cost.
Description
Technical Field
The utility model relates to an injection mold field especially relates to a slider of double-shot moulding shaping structure of loosing core.
Background
The two-color injection molding process is a very classical molding process, namely: two plastic materials are injected on the same double-color injection molding machine and are molded twice, but the product is only demoulded once; the appearance requirements of different colors and touch of products can be met by double-color injection molding. At present, the most widely used of the double-color injection mold is the core rotary split type, namely: two pairs of moulds arranged on a double-color injection machine are used for injection moulding, the front moulds of the two pairs of moulds have different shapes, and the rear moulds have the same shape; and opening the die after the primary forming, rotating the front die and the rear die of the die by 180 degrees around the center, re-closing the die to realize secondary forming, cooling the product, opening the die again and ejecting the product.
As shown in fig. 1, the double-color automobile bottom guard plate is composed of two parts, namely hard glue and soft glue, and as shown in a position circled by a dotted line in fig. 1, the soft glue part of the product is positioned on a stage of a hard glue back-off region, and for product back-off region molding, most molds adopt a slide block core pulling structure at present, so that if the traditional core rotation type split mold is used for double-color injection molding, the whole device is large, the mold opening and closing steps are more complex, the whole injection molding rhythm is slow, the production efficiency is low, and the cost is high; in order to solve the problems, the scheme is improved on a common injection mold, and a sliding block core-pulling forming structure for double-shot injection molding is designed.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model aims to provide a slider of double-shot moulding takes core shaping structure.
In order to achieve the above purpose, the utility model discloses a realize through following technical scheme:
the utility model provides a slider of double-shot moulding shaping structure of loosing core, includes: the forming die comprises a front die plate and a rear die plate, wherein a shovel base is installed on the front die plate, a sliding block is arranged on the rear die plate in a sliding mode, the front die plate, the rear die plate and the sliding block are assembled to form a product forming cavity, the top end of the shovel base is connected with a shovel base driving oil cylinder, the shovel base driving oil cylinder drives a shovel base to move up and down, the front end of the shovel base is a driving block, the rear end of the sliding block is provided with a driving groove, the bottom of the driving groove is transversely provided with a connecting block, the front end of the connecting block is located in the driving groove, the width of the front end of the connecting block is smaller than that of the driving groove, the rear end of the connecting block is connected with a sliding block driving oil cylinder, the driving groove is a T-shaped groove with inclination, the driving block is a T-shaped block, the lower half parts of the front sides and the upper half parts of the rear sides of two arms are inclined planes, and the front end of the connecting block is a T-shaped block; the die assembling process the driving block moves in the vertical direction in the driving groove, when the first injection is carried out, the shovel base moves downwards, the driving block pushes the sliding block forwards to be tightly attached to the front template, a ebonite injection molding cavity is formed, when the second injection is carried out, the shovel base moves upwards, the driving block pushes the sliding block backwards for a certain distance, a soft glue injection molding cavity is formed, the sliding distance of the sliding block is the wall thickness of the second injection soft glue, and the width difference between the driving groove and the front end of the connecting block provides an avoiding space for the front-back sliding of the sliding block.
The front template is internally provided with a shovel base groove, the shovel base is positioned in the shovel base groove, and the top surface of the shovel base is provided with an upper limiting column and a lower limiting block.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses carrying out institutional advancement on ordinary mould, designing into the shovel base hydro-cylinder drive form, after the compound die, slide around driving the slider through the shovel base and obtain a ebonite die cavity and the secondary flexible glue die cavity of moulding plastics, when guaranteeing to reach double-colored injection moulding process demand, compare with traditional core rotation type split type double-colored mould of moulding plastics, reduced the process of moulding plastics, improved production efficiency, reduced manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the product of the present invention;
fig. 2 is a schematic partial cross-sectional view of the present invention;
fig. 3 is a schematic overall sectional view of the present invention;
fig. 4 is a schematic view of a partial three-dimensional structure of the present invention;
FIG. 5 is a schematic perspective view of the shovel base of the present invention;
fig. 6 is a schematic perspective view of the slider and the connecting block of the present invention;
fig. 7 is a schematic view of the top view structure of the sliding block and the connecting block of the present invention.
1-front template; 2-rear template; 3-shovel base; 31-a drive block; 4-a slide block; 41-a drive slot; 5-shovel base driving oil cylinder; 6-connecting a block; 7-a slide block driving oil cylinder; 8-upper limiting column; 9-lower limit block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 2 to 7, the utility model provides a double-shot moulding's slider molding structure of loosing core, include: the forming die comprises a front die plate 1 and a rear die plate 2, wherein a shovel base 3 is installed on the front die plate 1, a sliding block 4 is arranged on the rear die plate 2 in a sliding mode, the front die plate 1, the rear die plate 2 and the sliding block 4 are assembled to form a product forming cavity, the top end of the shovel base 3 is connected with a shovel base driving oil cylinder 5, the shovel base driving oil cylinder 5 is fixedly installed on the top surface of the front die plate 1 through an installation plate, the shovel base driving oil cylinder 5 drives the shovel base 3 to move up and down, the front end of the shovel base 3 is a driving block 31, the rear end of the sliding block 4 is provided with a driving groove 41, the bottom of the driving groove 41 is transversely provided with a connecting block 6, the front end of the connecting block 6 is located in the driving groove 41, the width of the front end of the connecting block is smaller than that of the driving groove 41, and the rear end of the connecting block 6 is connected with a sliding block driving oil cylinder 7; in the mold closing process, the driving block 31 moves in the driving groove 41 in the vertical direction, the shovel base 3 moves downwards when the driving block 31 pushes the sliding block 4 forwards to be tightly attached to the front template 1 to form a hard glue injection molding cavity, the shovel base 3 moves upwards when the driving block 31 pushes the sliding block 4 backwards for a certain distance to form a soft glue injection molding cavity, the sliding distance of the sliding block 4 is the thickness of the two-shot soft glue wall, and the width difference between the driving groove 41 and the front end of the connecting block 6 provides an avoidance space for the sliding block 4 to slide forwards and backwards.
Specifically, the driving groove 41 is a T-shaped groove with an inclination, the driving block 31 is a T-shaped block, the lower half part of the front side and the upper half part of the rear side of the two arms are inclined planes, and the front end of the connecting block 6 is a T-shaped block.
Specifically, set up the shovel base groove in the front mould board 1, shovel base 3 is located the shovel base inslot, spacing post 8 and lower spacing block 9 are installed to the top surface of shovel base 3, and when the compound die is accomplished in penetrating, the bottom surface of lower spacing block 9 and the overlap joint of shovel base inslot wall are in order to realize limiting effect down, go up spacing post 8 and the cooperation of shovel base actuating cylinder 5's mounting panel bottom surface in order to realize limiting effect.
The utility model discloses a concrete working process does:
when injection mold closing is carried out, an oil cylinder rod of a sliding block driving oil cylinder 7 extends forwards to push a sliding block 4 to slide forwards to a first position, the sliding block driving oil cylinder 7 stops moving, then a rear template 2 drives the sliding block 4 to gradually approach a front template 1 for mold closing, the lower half part of the driving block 31 gradually enters a driving groove 41, the driving block 31 is not in contact with the driving groove 41 in the process, the sliding block 4 keeps a static state, the front template 1 and the rear template 2 are closed, then a shovel base driving oil cylinder 5 extends downwards to push a shovel base 3 to move downwards, the straight surfaces of the upper half parts of the front sides of two arms of the driving block 31 are downward in contact with the inner wall of the front side of the driving groove 41, the sliding block 4 is gradually pushed forwards until the front end of the sliding block 4 is attached to the front template 1 to form an injection mold cavity, and at the moment, the sliding block 4 reaches a second position and starts injection molding of hard rubber; after the injection of the first injection hard glue is finished, the shovel base driving oil cylinder 5 retracts upwards to drive the shovel base 3 to move upwards, the upper half inclined planes of the rear sides of the two arms of the driving block 31 are contacted with the inner wall of the rear side of the driving groove 41, the sliding block 4 is gradually pushed backwards until the gap between the front end of the sliding block 4 and the front template 1 reaches the wall thickness of the soft glue, a second injection cavity is formed, the sliding block 4 retreats to the first position at the moment, and the injection of the second injection soft glue is started; after the injection molding of the second shot soft plastic is finished, the rear template 2 drives the sliding block 4 to gradually get away from the front template 1 for mold opening, finally, the oil cylinder rod of the sliding block driving oil cylinder 7 retracts backwards, the sliding block 4 is separated from the product and is reversely buckled, and the sliding block 4 retracts to a third position; thus completing one double-color injection molding cycle.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. The utility model provides a slider of double-shot moulding shaping structure of loosing core, includes: the forming die is characterized in that the top end of the shovel base (3) is connected with a shovel base driving oil cylinder (5), the shovel base driving oil cylinder (5) drives the shovel base (3) to move up and down, the front end of the shovel base (3) is a driving block (31), the rear end of the sliding block (4) is provided with a driving groove (41), the bottom of the driving groove (41) is transversely provided with a connecting block (6), the front end of the connecting block (6) is positioned in the driving groove (41), the width of the front end of the connecting block is smaller than that of the driving groove (41), the rear end of the connecting block (6) is connected with a sliding block driving oil cylinder (7), the driving groove (41) is a T-shaped groove with inclination, the driving block (31) is a T-shaped block, the front sides of two arms and the upper half parts of the rear sides of the two arms are both lower half parts of the T-shaped groove, and the front end of the connecting block (6) is a T-shaped groove; in the die assembly process, the driving block (31) moves in the vertical direction in the driving groove (41), when one shot, the shovel base (3) moves downwards, the driving block (31) pushes the sliding block (4) forwards to be tightly attached to the front template (1) to form a hard glue injection molding cavity, when the other shot is performed, the shovel base (3) moves upwards, the driving block (31) pushes the sliding block (4) backwards for a certain distance to form a soft glue injection molding cavity, the sliding distance of the sliding block (4) is the wall thickness of the two shot soft glue, and the width difference of the front ends of the driving groove (41) and the connecting block (6) provides an avoiding space for the front-back sliding of the sliding block (4).
2. The sliding block core pulling molding structure for double-shot molding according to claim 1, wherein a shovel base groove is formed in the front mold plate (1), the shovel base (3) is located in the shovel base groove, and an upper limiting column (8) and a lower limiting block (9) are mounted on the top surface of the shovel base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222406977.6U CN217944207U (en) | 2022-09-13 | 2022-09-13 | Double-shot moulding's slider forming structure of loosing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222406977.6U CN217944207U (en) | 2022-09-13 | 2022-09-13 | Double-shot moulding's slider forming structure of loosing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217944207U true CN217944207U (en) | 2022-12-02 |
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ID=84213084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222406977.6U Active CN217944207U (en) | 2022-09-13 | 2022-09-13 | Double-shot moulding's slider forming structure of loosing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217944207U (en) |
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2022
- 2022-09-13 CN CN202222406977.6U patent/CN217944207U/en active Active
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