CN212528549U - Upper flip cover demoulding structure of bottle cap injection mould - Google Patents

Abstract

The utility model relates to a bottle lid injection mold's last flip demoulding structure, its characterized in that: comprises a fixed template, a demoulding template and a first forming mold core; the fixed template is fixedly connected with a first forming mold core; the demolding template is movably arranged relative to the fixed template, a front cavity template is arranged on the demolding template, and a forming cavity is arranged on the front cavity template; the first forming mold core is provided with a forming end head for forming an inner cavity of the upper flip cover, the first forming mold core is movably arranged relative to the front cavity mold plate, and the forming end head and the forming cavity form a front mold cavity in a mold closing state; an elastic piece is arranged between the fixed template and the demoulding template, and the elastic piece drives the demoulding template to move relative to the fixed template in a mould opening state, so that the first forming core retreats into the front cavity template. This structure can effectively avoid going up flip and appear thimble seal on, and then optimizes the product outward appearance, promotes the product grade.

Description

Upper flip cover demoulding structure of bottle cap injection mould

Technical Field

The utility model relates to a bottle lid injection mold specifically is a bottle lid injection mold's last flip demoulding structure.

Background

Referring to fig. 1-3, in the existing injection mold for producing the flip-top type bottle cap G, the demolding action of the bottle cap G is to eject the product by the ejector pin demolding assembly, so as to realize the demolding of the bottle cap G. Specifically, the flip-top bottle cap G includes an upper flip-top G1 and a lower flip-top G2; the thimble demoulding assembly comprises an ejector plate 1, a reset return pin 3 and a demoulding thimble 4, wherein the ejector plate 1 is driven by a spring 2 to respectively act on the reset return pin 3 and the demoulding thimble 4 to complete demoulding actions; when the bottle cap injection mold is opened and the parting surface is opened, the spring 2 drives the ejector plate 1 to move, and the ejector plate 1 drives the demolding ejector pin 4 to eject the upper flip cover G1; when the bottle cap injection mold closes the mold, the ejector plate 1, the reset return pin 3 and the demolding ejector pin 4 are reset synchronously, and the spring 2 is pressed to store energy for next demolding. The existing bottle cap injection mold has the following defects: since the ejector pin demolding manner is adopted to demold the upper flip cover G1, the ejector pin mark G3 is left on the upper flip cover G1, so that the finished product is not beautiful enough, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a bottle lid injection mold's last flip demoulding structure, this structure can effectively avoid going up the flip and appear thimble seal, and then optimizes the product appearance, promotes the product grade.

The purpose of the utility model is realized like this:

the utility model provides a bottle lid injection mold's last flip demoulding structure which characterized in that: comprises a fixed template, a demoulding template and a first forming mold core; the fixed template is fixedly connected with a first forming mold core; the demolding template is movably arranged relative to the fixed template, a front cavity template is arranged on the demolding template, and a forming cavity is arranged on the front cavity template; the first forming mold core is provided with a forming end head for forming an inner cavity of the upper flip cover, the first forming mold core is movably arranged relative to the front cavity mold plate, and the forming end head and the forming cavity form a front mold cavity in a mold closing state; an elastic piece is arranged between the fixed template and the demoulding template, and the elastic piece drives the demoulding template to move relative to the fixed template in a mould opening state, so that the first forming core retreats into the front cavity template.

The structure further comprises a second forming mold core for forming the bent part on the bottle cap, and the second forming mold core is assembled on the first forming mold core.

The first forming mold core is provided with a groove, and the second forming mold core is arranged on the groove.

And the front cavity template is provided with a first mold cavity for assembling the first molding mold core and a second mold cavity for assembling the second molding mold core, and the first mold cavity is communicated with the second mold cavity.

The first forming mold core is provided with a first mold needle for forming a sealing part on the bottle cap, and the first forming mold core is provided with a first hole position for assembling the first mold needle.

The front cavity template is provided with a second mould needle for forming an opening on the bottle cap, and a second hole site for assembling the second mould needle is arranged on the front cavity template

And the demoulding template is provided with a limiting screw which acts on the fixed template in a limiting way.

And counterbores for embedding the elastic parts are arranged on the fixed template and/or the demoulding template.

The utility model has the advantages as follows:

the upper flip cover demoulding structure adopts the first forming core which is independently embedded to complete demoulding action, namely, the fixed template can be separated from the demoulding template due to the elastic piece between the fixed template and the demoulding template when the mould is opened, so as to drive the first forming core to move relatively and finally retreat into the front cavity template, thus realizing the separation demoulding of the first forming core and the bottle cap product; this structure can avoid appearing the thimble seal on the bottle lid product, and then optimizes the outward appearance of bottle lid, promotes the product grade.

Drawings

Fig. 1 is a schematic structural diagram of a conventional bottle cap injection mold.

Fig. 2 is a partial sectional view of a conventional injection mold for a bottle cap.

Fig. 3 is a schematic diagram of a bottle cap produced by a conventional bottle cap injection mold.

Fig. 4 is a schematic structural view of an injection mold for a bottle cap according to an embodiment of the present invention.

Fig. 5 is a partial cross-sectional view of the bottle cap injection mold in a closed state according to an embodiment of the present invention.

Fig. 6 is a partial cross-sectional view of an embodiment of the present invention when the bottle cap injection mold is in the mold-opened state.

Fig. 7 is a schematic view of a bottle cap produced by the injection mold for bottle caps according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a front cavity template according to an embodiment of the present invention.

Fig. 9 is a sectional view taken in the direction H-H in fig. 8.

Fig. 10 is a front view of the first forming core according to an embodiment of the present invention.

Fig. 11 is a sectional view of the first forming core according to an embodiment of the present invention.

Fig. 12 is a plan view of the first forming core according to an embodiment of the present invention.

Fig. 13 is a plan view of the second forming core according to an embodiment of the present invention.

Fig. 14 is a side view of the second forming core according to an embodiment of the present invention.

Fig. 15 is a front view of a second forming core according to an embodiment of the present invention.

Fig. 16 is a schematic view (partially cut away) of a first mold core according to an embodiment of the present invention.

Fig. 17 is a schematic view of a second mold core according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 4-17, the upper flip-top demoulding structure of the bottle cap injection mould comprises a fixed mould plate 7, a demoulding mould plate 10 and a first forming mould core 11; the fixed template 7 is fixedly connected with a first forming die core 11; the demoulding template 10 is movably arranged relative to the fixed template 7, a front cavity template 12 is arranged on the demoulding template 10, and a forming cavity 1204 is arranged on the end surface of the front cavity template 12; a molding end 1103 for molding the inner cavity of the upper flip cover G1 is arranged on the end surface of the first molding core 11, the first molding core 11 is movably arranged relative to the front cavity mold plate 12, and the molding end 1103 and the molding cavity 1204 form a front mold cavity in a mold closing state; an elastic member 8 (the elastic member 8 is a coil spring in this embodiment) is disposed between the fixed mold plate 7 and the demolding mold plate 10, and in the mold-opened state, the elastic member 8 drives the demolding mold plate 10 to move relative to the fixed mold plate 7, so that the first molding core 11 is retracted into the front cavity mold plate 12, and the bottle cap G is separated from the molding end 1103 to realize demolding.

Further, the structure further comprises a second molding core 13 for molding the bending part G6 on the bottle cap G, and the second molding core 13 is assembled at the side of the first molding core 11. Specifically, the bending part G6 is connected between the upper flip cover G1 and the lower flip cover G2 to guide the upper flip cover G1 to be relatively turned over to be covered with the lower flip cover G2; when the mold is opened, the second molding core 13 retreats into the front cavity template 12 along with the first molding core 11.

Further, a groove 1101 is formed in the side of the first forming core 11, and the second forming core 13 is disposed on the groove 1101.

Further, a first cavity 1201 for assembling the first molding core 11 and a second cavity 1202 for assembling the second molding core 13 are machined on the front cavity die plate 12, and the first cavity 1201 is communicated with the second cavity 1202; the first mold core 11 is movable in the first cavity 1201, and the second mold 13 is movable in the second cavity 1202.

Further, the first mold core 11 is provided with a first mold pin 14 for molding a sealing portion G5 of the bottle cap G, and the first mold core 11 is provided with a first hole site 1102 for fitting the first mold pin 14.

Further, a second pin 15 for forming an opening G4 of the bottle cap G is mounted on the front cavity mold plate 12, and a second hole site 1203 for mounting the second pin 15 is provided on the front cavity mold plate 12

Furthermore, a limiting screw 6 is assembled on the demoulding template 10, and the limiting screw 6 is limited to act on the fixed template 7.

Furthermore, the fixed die plate 7 and the demoulding die plate 10 are respectively provided with a counter bore 9 for embedding the elastic piece 8, and the end part of the elastic piece 8 is at least partially embedded in the counter bore 9.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a bottle lid injection mold's last flip demoulding structure which characterized in that: comprises a fixed template (7), a demoulding template (10) and a first forming mold core (11); the fixed template (7) is fixedly connected with a first forming mold core (11); the demolding template (10) is movably arranged relative to the fixed template (7), a front cavity template (12) is arranged on the demolding template (10), and a forming cavity (1204) is arranged on the front cavity template (12); the first forming mold core (11) is provided with a forming end head (1103) for forming an inner cavity of the upper flip cover (G1), the first forming mold core (11) is movably arranged relative to the front cavity mold plate (12), and the forming end head (1103) and the forming cavity (1204) form a front mold cavity in a mold closing state; an elastic piece (8) is arranged between the fixed template (7) and the demoulding template (10), and the elastic piece (8) drives the demoulding template (10) to move relative to the fixed template (7) in the mould opening state, so that the first forming core (11) retreats into the front cavity template (12).

2. The upper flip demoulding structure of the bottle cap injection mould according to claim 1, wherein: the bottle cap forming die further comprises a second forming die core (13) used for forming a bent part (G6) on the bottle cap (G), and the second forming die core (13) is assembled on the first forming die core (11).

3. The upper flip demoulding structure of the bottle cap injection mould according to claim 2, wherein: the first forming mold core (11) is provided with a groove (1101), and the second forming mold core (13) is arranged on the groove (1101).

4. The upper flip demoulding structure of the bottle cap injection mould according to claim 2, wherein: the front cavity template (12) is provided with a first mold cavity (1201) for assembling a first molding core (11) and a second mold cavity (1202) for assembling a second molding core (13), and the first mold cavity (1201) is communicated with the second mold cavity (1202).

5. The upper flip demoulding structure of the bottle cap injection mould according to claim 1, wherein: the first forming mold core (11) is provided with a first mold needle (14) used for forming a sealing part (G5) on the bottle cap (G), and the first forming mold core (11) is provided with a first hole position (1102) used for assembling the first mold needle (14).

6. The upper flip demoulding structure of the bottle cap injection mould according to claim 1, wherein: and a second mould needle (15) for forming an opening (G4) on the bottle cap (G) is assembled on the front cavity mould plate (12), and a second hole position (1203) for assembling the second mould needle (15) is arranged on the front cavity mould plate (12).

7. The upper flip demoulding structure of the bottle cap injection mould according to claim 1, wherein: and the demoulding template (10) is provided with a limit screw (6), and the limit screw (6) acts on the fixed template (7) in a limiting way.

8. The upper flip demoulding structure of the bottle cap injection mould according to claim 1, wherein: and counter bores (9) for embedding the elastic pieces (8) are arranged on the fixed template (7) and/or the demoulding template (10).

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