CN217073181U - Plastic zipper head cap lateral glue injection molding mold - Google Patents
Plastic zipper head cap lateral glue injection molding mold Download PDFInfo
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- CN217073181U CN217073181U CN202220862393.7U CN202220862393U CN217073181U CN 217073181 U CN217073181 U CN 217073181U CN 202220862393 U CN202220862393 U CN 202220862393U CN 217073181 U CN217073181 U CN 217073181U
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Abstract
The utility model discloses a plastic zipper head cap lateral glue injection molding mold, which comprises an upper molding die and a lower molding die, wherein the upper molding die is provided with a glue material filling hole and a smooth first joint surface, the first joint surface is provided with a molding die cavity, and the first joint surface is provided with a glue injection runner which respectively drains glue materials from the glue material filling hole and injects the glue materials into the molding die cavity through the cover side part of the molding die cavity; the lower molding die is provided with a second die joint surface which is smooth and flush with the first die joint surface, the lower molding die is provided with a die core assembly corresponding to the molding die cavity in an arrangement mode, and the die core assembly protrudes out of the second die joint surface and extends into the molding die cavity; when the die is closed and the plastic is injected and molded, the rubber material can be injected into the molding die cavity from the cover side part of the molding die cavity along the rubber injection runner, the rubber material flows into the die cavity from the cover side part of the cap to complete cap molding, and even if the formed plastic cap has trimming marks such as burrs or burrs and the like at the cover side part, the marks such as the burrs or burrs and the like at the cover side part can be covered and hidden through the groove during assembly.
Description
Technical Field
The utility model belongs to the technical field of draw zipper head production and processing, concretely relates to plastic of reassembling type plastic zipper head draws zipper head cap injection moulding mould.
Background
The existing plastic zipper head cap injection molding mold completes injection molding processing by enabling rubber materials to flow into a mold cavity from a cap end part of a cap in the design of an injection molding flow channel of the mold, the molded plastic cap can form burrs or burrs after being cut off, even if the burrs or burrs are trimmed and finished manually in the later period, obvious marks still exist no matter whether the plastic cap is buckled and connected with a plastic zipper head main body with a complete plane front plate body or buckled and connected with the plastic zipper head main body with a groove 10 shown in figure 1, the burrs or burrs marks at the cap end part can be obviously exposed to influence the overall feeling and quality of the plastic zipper head.
In actual assembly production, the situation that the depth of the groove 10 shown in fig. 1 is reasonable in design is found, if the glue injection inlet of the plastic cap is arranged corresponding to the cover side part of the cap, burrs or burrs and other marks at the hidden cover side part can be completely covered through the groove 10, so that the trouble of trimming the burrs or burrs can be saved, and meanwhile, the exposure of the burrs or burrs and other marks can be avoided. Therefore, in order to meet the production requirement, an injection mold is designed accordingly, which can realize the flow of the glue material from the cap side portion into the mold cavity to complete the cap forming.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sizing material flows in the die cavity from cap lid side position and accomplishes cap fashioned plastic and draw zipper head cap side direction injecting glue injection moulding mould.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lateral glue injection molding die for a plastic zipper head cap comprises an upper molding die and a lower molding die, wherein the upper molding die is provided with a glue material filling hole and a smooth first joint surface, the first joint surface is provided with a molding die cavity, and the first joint surface is provided with glue injection runners which respectively guide glue materials from the glue material filling hole and inject the glue materials into the molding die cavity through the cap side part of the molding die cavity; the lower molding die is provided with a second die joint surface which is smooth and flush with the first die joint surface, the lower molding die is provided with a die core assembly corresponding to the molding die cavity in an arrangement mode, and the die core assembly protrudes out of the second die joint surface and extends into the molding die cavity; when the die is closed, glue is injected and molded, glue can be injected into the molding die cavity from the cover side part of the molding die cavity along the glue injection flow channel, the glue flows into the die cavity from the cover side part of the cap to complete cap molding, and even if burrs or burrs and other trimming marks exist on the cover side part of the molded plastic cap, the burrs or burrs and other marks on the cover side part can be covered and hidden through the groove during assembly.
As a preferred scheme, the glue injection runner comprises a first shunting channel, a main channel and a second shunting channel, wherein the first shunting channel extends symmetrically and linearly at two sides of the glue material injection hole, one end of the first shunting channel is communicated with the glue material injection hole, the main channel extends linearly and is perpendicular to the first shunting channel and is communicated with the other end of the first shunting channel, the second shunting channel extends linearly and is perpendicular to the main channel and is symmetrically distributed at two sides of the main channel, one end of the second shunting channel is communicated with the main channel, and the other end of the second shunting channel is molded and extends at the cover side part of the die cavity; the rubber material is injected into the die after die assembly through the rubber material injection hole, a plurality of plastic caps can be formed through one-step forming of the single die set so as to improve forming efficiency, and meanwhile, the rubber material can rapidly and uniformly flow into each forming die cavity in a shunting manner, so that quality of the formed plastic caps is kept consistent.
As a preferred scheme, the mold core assembly comprises a first mold core insert, a second mold core insert and a middle mold core, wherein the first mold core insert and the second mold core insert are symmetrically arranged and adjustably mounted on the lower molding die, the middle mold core is fixedly and convexly arranged on the second joint surface, the lower molding die is symmetrically provided with a first insert mounting groove and a second insert mounting groove at two sides of the middle mold core relative to the symmetrical center line of the middle mold core, and the first insert mounting groove and the second insert mounting groove penetrate through the lower molding die in an inclined manner to form a splayed shape; the first mold core insert is arranged in the first insert mounting groove, the second mold core insert is arranged in the second insert mounting groove and respectively protrudes out of the second joint surface to form side end mold cores symmetrically on two sides of the middle mold core, two sides of the middle mold core are respectively provided with first inclined side walls consistent with the inclination directions of the first insert mounting groove and the second insert mounting groove, and the side end mold cores are provided with second inclined side walls aligned with the first inclined side walls; the first mold core insert and the second mold core insert of the mold core assembly adopt adjustable mounting structures, the first mold core insert and the second mold core insert can be adjusted to stretch out to demold the plastic cap after the plastic cap is formed, and demolding after the plastic cap is formed is also convenient.
The utility model discloses following beneficial effect has:
the utility model discloses plastic draws zipper head cap side direction injecting glue injection moulding mould has when compound die injecting glue injection moulding, and the sizing material can be followed the injecting glue runner and poured into the moulded die intracavity from the lid side position of shaping die cavity, and the sizing material is followed cap lid side position and is flowed into the die cavity and accomplish the fashioned characteristics of cap.
Drawings
FIG. 1 is a main structure diagram of a plastic slider body adapted to be fastened with a plastic cap formed by a plastic slider cap lateral glue injection mold of the present invention;
FIG. 2 is a diagram of a plastic cap structure formed by a plastic zipper head cap lateral glue injection mold of the present invention;
FIG. 3 is a structural view of an upper mold of the plastic zipper head cap side injection molding mold of the present invention;
FIG. 4 is a lower mold structure diagram of the plastic zipper head cap side injection molding mold of the present invention;
FIG. 5 is a structural view of the insert mounting groove and the middle mold core arrangement of the lower molding die of the plastic zipper head cap side injection molding die of the present invention;
FIG. 6 is a structural diagram of a first mold core insert of the plastic zipper head cap lateral glue injection molding mold of the present invention;
FIG. 7 is a right side view of the first core insert shown in FIG. 6;
fig. 8 is the utility model discloses the plastic draws zipper head cap side direction injecting glue injection moulding mould's combination assembly structure picture of first mold core mold insert, middle mold core and second mold core mold insert.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.
The plastic zipper head cap lateral glue injection molding mold shown in fig. 3 and 4 includes an upper molding die 7 and a lower molding die 8, the upper molding die 7 is provided with a glue filling hole 71 and has a flat first mold clamping surface 70, the first mold clamping surface 70 is arranged with a molding cavity 75, the first mold clamping surface 70 is provided with glue injection runners for respectively guiding glue from the glue filling hole 71 and injecting the glue into the molding cavity 75 through a cap side portion of the molding cavity 75, in this embodiment, the glue injection runners preferably adopt the following flow dividing forms as shown in fig. 3: comprises a first shunting channel 72, a main channel 73 and a second shunting channel 74, wherein the first shunting channel 72 symmetrically extends and is arranged at two sides of the glue material filling hole 71 in a straight way, one end of the first shunting channel is communicated with the glue material filling hole 71, the main channel 73 extends and is communicated and arranged at the other end of the first shunting channel 72, the second shunting channel 74 extends and is distributed at two sides of the main channel 73 in a straight way, one end of the second shunting channel 74 is communicated with the main channel 73, and the other end of the second shunting channel 74 extends to the cover side part of the molding cavity 75, the rubber material is injected into the die after the die is closed through the rubber material injection hole 71, a plurality of plastic caps can be formed by one-step forming of a single die set so as to improve the forming efficiency, at the same time, the glue will flow into each forming mold cavity 75 in a rapidly and uniformly distributed manner, so that the quality of the formed plastic caps is kept consistent.
The lower forming die 8 is provided with a second smooth die surface 80 which is flush with the first die surface 70, the lower forming die 8 is provided with a die core assembly 81 corresponding to the forming die cavity 75 in an arrangement mode, the die core assembly 81 protrudes out of the second die surface 80 and extends into the forming die cavity 75, when the die assembly, the glue injection molding and forming are carried out, glue can be injected into the forming die cavity 75 from the cover side part of the forming die cavity 75 along a glue injection flow channel, the glue flows into the die cavity from the cover side part of the cap to complete the cap forming, even if the formed plastic cap has burrs or burrs and other trimming marks at the cover side part, burrs or burrs and other marks at the cover side part can be covered through a groove during assembling.
During the injection molding of a specific cap, according to the difference of the structural design of the inner cavity of the plastic cap, the specific structure of the mold core assembly 81 of the lower molding die 8 is also different in design, and in this embodiment, the plastic cap with the structure shown in fig. 2 is used to describe and introduce the specific structural form of the mold core assembly 81 suitable for the lower molding die 8 in detail: the plastic cap shown in fig. 2 comprises a cap top wall 1, a cap end wall 2 and a cap side wall 3, the cap top wall 1, the cap end wall 2 and the cap side wall 3 are enclosed to form a cap cavity, a clearance groove 4 for avoiding a pull rod of a zipper pull piece is formed in the cap side wall 3, meanwhile, a clamping block 5 for buckling the plastic cap in a plastic pull head main body is arranged on the inner side of the cap end wall 2 in the cap cavity, and elastic sheet supporting tables 6 for supporting the end portions of metal elastic sheets are respectively arranged at two ends of the cap top wall 1 in the cap cavity in a protruding mode corresponding to the clamping block 5.
As shown in fig. 5-8, the mold core assembly 81 specifically includes a first mold core insert 811 and a second mold core insert 814 symmetrically disposed and adjustably mounted on the lower molding die 8, and an intermediate mold core 815 fixedly protruded on the second mold clamping surface 80, the lower molding die 8 is symmetrically provided with a first insert mounting groove 801 and a second insert mounting groove 802 at two sides of the intermediate mold core 815 with respect to a symmetrical center line of the intermediate mold core 815, the first insert mounting groove 801 and the second insert mounting groove 802 obliquely penetrate the lower molding die 8 to form a splayed shape, the first mold core insert 811 is mounted on the first insert mounting groove 801, the second mold core insert 814 is mounted on the second insert mounting groove 802 and respectively protruded on the second mold clamping surface 80 to symmetrically form side ends 812 at two sides of the intermediate mold core 815, two sides of the intermediate mold core 815 respectively have first oblique side walls 817 consistent with oblique directions of the first insert mounting groove 801 and the second insert mounting groove 802, the side end mold core 812 has a second inclined sidewall 812d aligned with the first inclined sidewall 817, and the first mold core insert 811 and the second mold core insert 814 of the mold core assembly 81 adopt adjustable mounting structures, so that the plastic cap can be demolded by adjusting the first mold core insert 811 and the second mold core insert 814 to extend out after the plastic cap is formed, and the demolding after the plastic cap is formed is also convenient.
The specific structure of the middle mold core 815 and the side mold core 812 is as follows: lateral protrusions 816 for forming clearance grooves 4 of the plastic cap are respectively arranged on two sides of the middle mold core 815 in a protruding mode, a first forming groove 812a for forming a clamping block 5 on the inner side of the cover end wall 2 of the plastic cap and a second forming groove 812b for forming an elastic sheet supporting table 6 on the end portion of the cover top wall 1 of the plastic cap are arranged on one side of the side end mold core 812 opposite to the middle mold core 815, and a separation protrusion 812c is formed between the first forming groove 812a and the second forming groove 812 b.
Wherein, the side of the first mold core insert 811 is provided with a long circular groove 813 along the inclination direction of the first insert mounting groove 801, the side of the second mold core insert 814 is provided with a tightening screw hole 803 along the inclination direction of the second insert mounting groove 802, the lower molding die 8 is provided with a tightening screw hole 803 corresponding to the long circular groove 813, the tightening piece is connected to the tightening screw hole 803 and extends into and abuts against the long circular groove 813 to fasten and fix the first mold core insert 811 and the second mold core insert 814, the mold core insert can be adjusted and moved in the corresponding insert mounting groove along the long circular groove 813 by loosening the tightening piece, so that the mold core insert extends upwards for a certain distance to enable the plastic cap to be separated from the mold core 812 to complete the demolding of the plastic cap, the plastic cap molded by demolding is a finished cap with burrs or flash marks at the a part of the cap side wall 3 shown in fig. 2, and the cap can be directly assembled on the plastic slider body shown in fig. 1, the groove 10 of the plastic slider body covers and hides the burr or flash and other marks at the part A.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (5)
1. A lateral glue injection molding die for a plastic zipper head cap comprises an upper molding die and a lower molding die, and is characterized in that the upper molding die is provided with a glue material filling hole and a first smooth mold matching surface, the first mold matching surface is provided with a molding die cavity, and the first mold matching surface is provided with glue injection runners which respectively guide glue materials from the glue material filling hole and inject the glue materials into the molding die cavity through the cover side part of the molding die cavity;
the lower molding die is provided with a second smooth die matching surface which is flush with the first die matching surface, the lower molding die is provided with a die core assembly in an arrangement mode corresponding to the molding die cavity, and the die core assembly protrudes out of the second die matching surface and extends into the molding die cavity.
2. The plastic zipper head cap lateral glue injection molding mold of claim 1, wherein the glue injection runner comprises:
the first shunting channels symmetrically and linearly extend to two sides of the glue material filling hole, and one ends of the first shunting channels are communicated with the glue material filling hole;
the main channel extends in a straight line perpendicular to the first diversion channel and is communicated with the other end of the first diversion channel;
and the second shunting channels are perpendicular to the straight extension of the main channel and are symmetrically distributed at two sides of the main channel, one end of each second shunting channel is communicated with the main channel, and the other end of each second shunting channel extends to the cover side part of the forming die cavity.
3. The plastic zipper puller cap side-injection molding die according to claim 1 or 2, wherein the mold core assembly comprises a first mold core insert, a second mold core insert, and a middle mold core, wherein the first mold core insert and the second mold core insert are symmetrically arranged and adjustably mounted on the lower molding die, and the middle mold core is fixedly protruded on the second mold clamping surface;
the first mold core insert is arranged in the first insert mounting groove, the second mold core insert is arranged in the second insert mounting groove and protrudes out of the second joint surface to form side mold cores symmetrically on two sides of the middle mold core, two sides of the middle mold core are respectively provided with first oblique side walls which are consistent with the first insert mounting groove and the second insert mounting groove in the inclination direction, and the side mold cores are provided with second oblique side walls which are flush with the first oblique side walls.
4. The plastic zipper slider cap lateral injection molding die of claim 3, wherein the side portion of the first mold core insert is provided with a long circular groove along the tilt direction of the first insert mounting groove and the side portion of the second mold core insert is provided with a long circular groove along the tilt direction of the second insert mounting groove, the lower molding die is provided with a fastening screw hole corresponding to the long circular groove, and a fastening member is connected to the fastening screw hole and extends into and tightly abuts against the long circular groove to fasten and fix the first mold core insert and the second mold core insert.
5. The plastic zipper puller cap lateral glue injection molding mold as claimed in claim 3, wherein lateral protrusions for forming the clearance grooves of the plastic cap are respectively protruded from two sides of the middle mold core, a first forming groove for forming the fixture block inside the cap end wall of the plastic cap and a second forming groove for forming the spring support platform at the cap top wall end of the plastic cap are respectively provided on one side of the side end mold core facing away from the middle mold core, and a separation protrusion is formed between the first forming groove and the second forming groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862393.7U CN217073181U (en) | 2022-04-14 | 2022-04-14 | Plastic zipper head cap lateral glue injection molding mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862393.7U CN217073181U (en) | 2022-04-14 | 2022-04-14 | Plastic zipper head cap lateral glue injection molding mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073181U true CN217073181U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220862393.7U Active CN217073181U (en) | 2022-04-14 | 2022-04-14 | Plastic zipper head cap lateral glue injection molding mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217073181U (en) |
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2022
- 2022-04-14 CN CN202220862393.7U patent/CN217073181U/en active Active
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