CN216329695U - Injection mold for mobile phone protective sleeve - Google Patents

Abstract

The utility model discloses an injection mold for a mobile phone protective sleeve, which comprises a base, square iron, a lower template, a lower backing plate and a lower template, wherein the lower template is sequentially provided with an upper mold base, an upper backing plate, an upper template and a top template from bottom to top, the top of a molding mold cavity is provided with a molding groove, two side edges of the molding mold cavity are respectively provided with a first molding lug and a second molding lug, an upper mold core movably butted with the lower mold core is arranged in the upper mold base, an upper mold core matched with the molding mold core is arranged in the upper mold core, the bottom surface of the upper mold core is provided with a first groove matched with the molding groove, and two side surfaces of the upper mold core are respectively provided with a second groove and a third groove matched with the first molding lug and the second molding lug. The mobile phone protective sleeve formed by injection molding has a smooth surface, is free of burrs, does not need secondary processing, is easy and accurate in size, ensures the quality of products, is simple and convenient to demould, and effectively improves the processing efficiency.

Description

Injection mold for mobile phone protective sleeve

Technical Field

The utility model relates to the field of injection molds, in particular to an injection mold for a mobile phone protective sleeve.

Background

An injection mold is a tool for producing plastic products and also a tool for giving the plastic products complete structure and precise dimensions. Injection molding is a process used to mass produce parts of some complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification. The injection mold generally includes an upper mold, a lower mold, an upper mold core disposed on the upper mold, a lower mold core disposed on the lower mold core, and a matched mold closing/releasing operation between the upper mold core and the lower mold core is performed to complete the injection molding.

The mobile phone protective sleeve is mostly formed by injection molding through a mold, the deviation is easy to occur on the size of a product which is injected by the existing mold, the normal quality of the product is influenced, and the product is difficult to demould after injection molding is completed, so that the processing efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection mold for a mobile phone protective sleeve, aiming at overcoming the defects in the prior art and solving the problems in the background technology.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an injection mold for a mobile phone protective sleeve comprises a base, square iron, a lower template, a lower liner plate and a lower die holder, wherein the square iron is arranged on two sides of the base, the lower template, the lower liner plate and the lower die holder are sequentially arranged on the square iron from bottom to top, an upper die holder, an upper liner plate, an upper template and a top template are sequentially arranged on the lower die holder from bottom to top, the upper die holder and the lower die holder are in open-close connection, a lower die core is arranged in the lower die holder, a forming die core for forming the mobile phone protective sleeve is arranged in the lower die core, a sealing ring is sleeved between the forming die core and the lower die core, a vacuum pumping hole is formed in the lower die holder and is connected with an external vacuum extractor, a forming die cavity is arranged in the forming die core, and a forming groove for forming a camera hole of the mobile phone protective sleeve is formed in the top of the forming die cavity, a first molding lug and a second molding lug which are used for molding a switch key and a volume key of a mobile phone protective sleeve are respectively arranged on two side edges of the upper mold core, an upper mold core which is movably butted with the lower mold core is arranged in the upper mold base, an upper mold core matched with the molding mold core is arranged in the upper mold core, a first groove matched with the molding groove is arranged on the bottom surface of the upper mold core, a second groove and a third groove matched with the first molding lug and the second molding lug are respectively arranged on two side surfaces of the upper mold core, and a glue inlet flow channel is arranged in the upper baffle plate; when the die is closed, the forming die core and the upper die core form a die cavity of the formed mobile phone protective sleeve, the die cavity is communicated with the glue inlet flow passage and communicated with the vacuum pumping hole, an ejection component is arranged between the square irons, the ejection component upwards extends through the lower die base and the lower die core and is fixedly connected with the forming die cavity, and the ejection component is ejected upwards by an external ejection roller or moves upwards through self-resetting transmission of the ejection component, so that the formed die cavity is ejected upwards, and the injected mobile phone protective sleeve is pushed to be separated upwards and stripped.

As a further elaboration of the above technical solution:

in the technical scheme, the liftout subassembly includes bottom plate, roof and ejector pin, bottom plate and roof setting are in set gradually from bottom to top between the square iron, the ejector pin is installed and upwards extend and run through in proper order on the bottom plate the roof the lower bolster with the die holder with the bottom fixed connection of shaping die cavity will shaping die cavity upwards ejecting promotes the cell-phone protective sheath upwards separation of the completion of moulding plastics and takes off the material.

In the above technical scheme, the liftout subassembly further includes a first guide pillar, the first guide pillar is installed on the base and penetrates upwards the bottom plate and the top plate to be fixedly connected with the bottom surface of the lower template, and the bottom plate and the top plate can move up and down along the first guide pillar.

In the technical scheme, the top end of the ejector rod is provided with a clamping convex block, the bottom of the forming die cavity is provided with a clamping groove, and the clamping convex block is clamped in the clamping groove, so that the ejector rod is fixedly connected with the forming die cavity.

In the technical scheme, a limiting groove is formed between the clamping convex block and the ejector rod, the bottom end of the clamping groove is relatively provided with the limiting convex block matched with the limiting groove, and the clamping convex block is clamped in the clamping groove and is clamped in the limiting groove.

In the above technical scheme, the die further comprises second guide pillars which are arranged at four corners of the top surface of the lower backing plate and extend upwards to sequentially penetrate through the lower die base, the upper backing plate, the upper die plate, the upper partition plate and the four corners of the bottom surface of the top die plate, and the upper die base can move along the second guide pillars in an opening and closing manner.

In the above technical scheme, the base and the square iron, the square iron and the lower template, the lower template and the lower backing plate, the lower backing plate and the lower die base, the upper die base and the upper backing plate, the upper backing plate and the upper die plate, and the upper die plate and the top die plate are all fixedly connected through bolts.

Compared with the prior art, the utility model has the beneficial effects that: the mobile phone protective sleeve is used for injection molding of the mobile phone protective sleeve, the surface of the injection molded mobile phone protective sleeve is smooth and burr-free, secondary processing is not needed, the size is easy and accurate, the quality of a product is guaranteed, a molding die cavity is ejected upwards through the ejection assembly after injection molding is finished, the mobile phone protective sleeve is demolded and discharged, mold ejection is simple and convenient, the processing efficiency is effectively improved, the vacuumizing machine is externally connected with the vacuum extraction hole, and before glue injection after an upper die base and a lower die base are assembled, the vacuumizing machine extracts gas in the die cavity, so that glue injection is more sufficient, injection of plastic materials is facilitated, and the problem of gas trapping display at the tail end of the glue injection is effectively solved.

Drawings

FIG. 1 is a schematic structural view of a protective cover for a mobile phone;

FIG. 2 is a front view of the present invention;

FIG. 3 is a first partial structural schematic of the present invention;

FIG. 4 is a second partial structural schematic of the present invention;

FIG. 5 is a third partial structural schematic of the present invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a fourth partial structural schematic of the present invention;

FIG. 8 is a fifth partial structural schematic of the present invention;

fig. 9 is a sixth partial structural view of the present invention.

In the figure: 100. a mobile phone protective sleeve; 1. a base; 2. square iron; 3. a lower template; 4. a lower base plate; 5. a lower die holder; 51. a vacuum air exhaust hole; 6. an upper die holder; 7. an upper base plate; 8. mounting a template; 9. a seal ring; 10. a top template; 11. a lower die core; 12. molding a mold core; 13. forming a mold cavity; 14. forming a groove; 15. a first molding bump; 16. a second molding bump; 17. an upper die core; 18. an upper mold core; 19. a first groove; 20. a second groove; 21. a third groove; 22. a glue inlet flow channel; 23. a material ejecting component; 24. a base plate; 25. a top plate; 26. a top rod; 27. clamping the convex block; 28. clamping the groove; 29. a limiting groove; 30. A limiting bump; 31. a first guide post; 32. and a second guide post.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1 to 9, an injection mold for a mobile phone protective case 100 is used for injection molding of the mobile phone protective case. This injection mold includes base 1, square iron 2, lower bolster 3, lower bolster 4 and die holder 5, square iron 2 installs on base 1's both sides, install in proper order down up down from lower bolster 3, lower bolster 4 and die holder 5 on square iron 2, from up having set gradually upper die base 6, upper padding plate 7, cope match-plate pattern 8 and cope match-plate pattern 10 down on the die holder 5, upper die base 6 with the connection of 5 open-close types of die holder, be provided with lower mould benevolence 11 in the die holder 5, be provided with the shaping mould benevolence 12 that is used for shaping cell-phone protective sheath 100 in the lower mould benevolence 11, shaping mould benevolence 12 with the cover is equipped with sealing washer 9 between the lower mould benevolence 11, vacuum extraction hole 51 has been seted up on the die holder 5, vacuum extraction hole 51 is connected with external evacuation machine, be provided with shaping mould cave 13 in the shaping mould benevolence 12, the top of shaping mould cave 13 is provided with the shaping recess that is used for the camera hole of shaping cell-phone protective sheath 100 14, a first molding protrusion 15 and a second molding protrusion 16 for molding a switch button and a volume button of the mobile phone protective case 100 are respectively arranged on two side edges of the upper mold base 6, an upper mold core 17 movably butted with the lower mold core 11 is arranged in the upper mold core 17, an upper mold core 18 matched with the molding mold core 13 is arranged in the upper mold core 17, a first groove 19 matched with the molding groove 14 is arranged on the bottom surface of the upper mold core 18, a second groove 20 and a third groove 21 matched with the first molding protrusion 15 and the second molding protrusion 16 are respectively arranged on two side surfaces of the upper mold core, and a glue inlet flow passage 22 is arranged in the upper partition plate 9. When the die is closed, the molding die core 13 and the upper die core 17 form a cavity of the molded mobile phone protective case 100, the cavity is communicated with the glue inlet runner 22 and communicated with the vacuum pumping hole 51, an ejecting component 23 is arranged between the square irons 2, the ejecting component 23 extends upwards to penetrate through the lower die base 5 and the lower die core 11 and is fixedly connected with the molding die cavity 13, and is ejected by an external ejecting roller or moves upwards by self-resetting transmission of the external ejecting roller, so that the molded mobile phone protective case 100 is pushed to be separated and stripped upwards. The forming size of the mobile phone protective case 100 is more fine due to the arrangement of the forming groove 14, the first groove 19, the first forming bump 15, the second forming bump 16, the second groove 20 and the third groove 21, the mobile phone protective case can be better attached to a mobile phone, and the production quality of the mobile phone protective case 100 is ensured. Through the external evacuation machine of vacuum extraction hole 51, before injecting the glue behind cope match-plate pattern 6 and the die holder 5 compound die, the evacuation machine takes away the gas in the die cavity for it is more abundant to inject the glue, is favorable to the plastic material to jet out and effectively solves and to inject the terminal stagnant gas of gluing and show. Through the setting of sealing washer 9 for the sealed effect in the die cavity is better, is favorable to taking out the gas in the die cavity completely.

In this embodiment, as shown in fig. 2 to 6, the ejector assembly 23 includes a bottom plate 24, a top plate 25 and an ejector rod 26, the bottom plate 24 and the top plate 25 are disposed between the square irons 2 and are sequentially disposed from bottom to top, the ejector rod 26 is disposed on the bottom plate 24 and extends upward to sequentially penetrate through the top plate 25, the lower mold plate 3, the lower backing plate 4 and the lower mold base 5 and the bottom of the molding mold cavity 13, so as to eject the molding mold cavity 13 upward, and push the injection molded mobile phone protective case 100 to be separated upward and stripped. As shown in fig. 6, a clamping protrusion 27 is disposed at the top end of the top rod 26, a clamping groove 28 is disposed at the bottom of the forming mold cavity 13, and the clamping protrusion 27 is clamped in the clamping groove 28, so that the top rod 26 is fixedly connected to the forming mold cavity 13. A limiting groove 29 is arranged between the clamping convex block 27 and the ejector rod 26, and a limiting convex block 30 matched with the limiting groove 29 is oppositely arranged at the bottom end of the clamping groove 28. When the clamping convex block 27 is clamped in the clamping groove 28, the limiting convex block 30 is clamped in the limiting groove 29. The clamping convex block 27, the clamping groove 28, the limiting convex block 29 and the limiting groove 30 are arranged, so that the connection between the ejector rod 26 and the forming die cavity 13 is more stable and reliable, the forming die cavity 13 is stably and upwards ejected, the assembly is convenient and fast, and the disassembly, assembly and subsequent maintenance are convenient.

Specifically, as shown in fig. 6, the ejector assembly 23 further includes a first guide post 31, the first guide post 31 is mounted on the base 1 and upwardly penetrates through the bottom plate 24 and the top plate 25 to be fixedly connected with the bottom surface of the lower die plate 3, and the bottom plate 24 and the top plate 25 can move up and down along the first guide post 31 to guide the up-and-down movement of the ejector rod 26, so as to ensure the stable upward ejection of the product.

In this embodiment, as shown in fig. 3 and 4, the die further includes second guide pillars 32, the second guide pillars 32 are installed at four corners of the top surface of the lower cushion plate 4, and extend upward to sequentially penetrate through the lower die base 5, the upper die base 6, the upper cushion plate 7, the upper die plate 8, the upper partition plate 9, and the four corners of the bottom surface of the top die plate 10, and the upper die base 6 can move along the second guide pillars 32 to guide the open-close die of the upper die base 6, so that the movement of the open-close die is more stable and reliable.

In this embodiment, the base 1 and between the square iron 2, the square iron 2 and between the lower template 3, the lower template 3 and between the lower backing plate 4, the lower backing plate 4 and between the lower die holder 5, the upper die base 6 and between the upper backing plate 7, the upper backing plate 7 and between the upper die plate 8, the upper die plate 8 and between the upper partition plate 9, the upper partition plate 9 and between the top die plate 10 are all fixedly connected through bolts, so that the whole assembly of the die is more stable and reliable, and the service life of the die is ensured.

The mobile phone protective sleeve 100 is used for injection molding of the mobile phone protective sleeve 100, the injection molded mobile phone protective sleeve 100 is smooth in surface, free of burrs and easy and accurate in size, secondary processing is not needed, product quality is guaranteed, a molding die cavity is ejected upwards through the ejection assembly after injection molding is completed, the mobile phone protective sleeve 100 is demoulded and discharged, demolding is simple and convenient, and machining efficiency is effectively improved.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (7)

1. An injection mold for a mobile phone protective sleeve is characterized by comprising a base, square iron, a lower template, a lower liner plate and a lower die holder, wherein the square iron is arranged on two sides of the base, the lower template, the lower liner plate and the lower die holder are sequentially arranged on the square iron from bottom to top, an upper die holder, an upper liner plate, an upper template and a top template are sequentially arranged on the lower die holder from bottom to top, the upper die holder and the lower die holder are connected in an opening-closing manner, a lower die core is arranged in the lower die holder, a forming die core for forming the mobile phone protective sleeve is arranged in the lower die core, a sealing ring is sleeved between the forming die core and the lower die core, a vacuum pumping hole is formed in the lower die holder, the vacuum pumping hole is connected with an external vacuum extractor, a forming die cavity is formed in the forming die core, and a forming groove for forming a camera hole of the mobile phone protective sleeve is formed in the top of the forming die cavity, a first molding lug and a second molding lug are respectively arranged on two side edges of the upper mold core, the first molding lug and the second molding lug are used for molding a switch button and a volume button of a mobile phone protective sleeve, an upper mold core movably butted with the lower mold core is arranged in the upper mold base, an upper mold core matched with the molding mold core is arranged in the upper mold core, a first groove matched with the molding groove is arranged on the bottom surface of the upper mold core, a second groove and a third groove matched with the first molding lug and the second molding lug are respectively arranged on two side surfaces of the upper mold core, and a glue inlet flow channel is arranged in the upper baffle plate; when the die is closed, the forming die core and the upper die core form a die cavity of the formed mobile phone protective sleeve, the die cavity is communicated with the glue inlet flow passage and communicated with the vacuum pumping hole, an ejection component is arranged between the square irons, the ejection component upwards extends through the lower die base and the lower die core and is fixedly connected with the forming die cavity, and the ejection component is ejected upwards by an external ejection roller or moves upwards through self-resetting transmission of the ejection component, so that the formed die cavity is ejected upwards, and the injected mobile phone protective sleeve is pushed to be separated upwards and stripped.

2. The injection mold for the mobile phone protective sleeves according to claim 1, wherein the ejector component comprises a bottom plate, a top plate and an ejector rod, the bottom plate and the top plate are arranged between the square irons and are sequentially arranged from bottom to top, the ejector rod is arranged on the bottom plate and extends upwards to sequentially penetrate through the top plate, the lower die plate, the lower base plate and the lower die holder and the bottom of the forming die cavity, the forming die cavity is ejected upwards, and the mobile phone protective sleeves after being injected are pushed to be separated upwards and taken off.

3. The injection mold for the mobile phone protective case according to claim 2, wherein the ejecting assembly further comprises a first guide post, the first guide post is mounted on the base and penetrates upwards through the bottom plate and the top plate to be fixedly connected with the bottom surface of the lower template, and the bottom plate and the top plate can move up and down along the first guide post.

4. The injection mold for mobile phone protective cases as claimed in claim 2, wherein a clamping protrusion is disposed on a top end of the top bar, a clamping groove is disposed on a bottom of the forming mold cavity, and the clamping protrusion is clamped in the clamping groove, so that the top bar is fixedly connected with the forming mold cavity.

5. The injection mold for the mobile phone protective sleeves according to claim 4, wherein a limiting groove is formed between the clamping projection and the ejector rod, a limiting projection matched with the limiting groove is oppositely arranged at the bottom end of the clamping groove, and when the clamping projection is clamped in the clamping groove, the limiting projection is clamped in the limiting groove.

6. The injection mold for the mobile phone protective case according to claim 1, further comprising second guide pillars installed at four corners of the top surface of the lower pad plate, and extending upward to sequentially penetrate through the lower die holder, the upper pad plate, the upper die plate, the upper partition plate and the four corners of the bottom surface of the top die plate, wherein the upper die holder can move along the second guide pillars.

7. The injection mold for the protective sleeves of the mobile phones according to claim 1, wherein the base is fixedly connected with the square iron, the square iron is fixedly connected with the lower template, the lower template is fixedly connected with the lower backing plate, the lower backing plate is fixedly connected with the lower template, the upper die holder is fixedly connected with the upper backing plate, the upper backing plate is fixedly connected with the upper die plate, and the upper die plate is fixedly connected with the top die plate.

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