CN212979085U - Glasses leg injection mold - Google Patents

Abstract

The utility model relates to a glasses leg injection mold, it includes the mould body, be provided with injection molding hole and die cavity on the mould body, the mould body is provided with the promotion subassembly including last mould and lower mould on going up between mould and the lower mould, and the promotion subassembly includes push rod and connecting plate, the vertical mounting groove that is provided with on the lower mould, and the push rod is located the mounting groove, and the upper end and the die cavity lower surface intercommunication of push rod, the lower extreme and the connecting plate fixed connection of push rod, the connecting plate is connected on last mould. This application has the product drawing of patterns of being convenient for, saves artificial effect.

Description

Glasses leg injection mold

Technical Field

The application relates to the technical field of glasses manufacturing, in particular to an injection mold for glasses legs.

Background

The injection mold is an important process device for producing various process products, and is widely applied to various industries along with the rapid development of the plastic industry and the popularization and application of plastic products in the industries of aviation, aerospace, electronics, machinery, automobiles and the like.

The glasses are composed of lenses and a glasses frame, the glasses frame is composed of a glasses frame and glasses legs which are connected through hinges, and at present, the glasses legs are mostly produced by injection molding through an injection mold. Chinese patent publication No. CN205291476U discloses a glasses leg injection mold, which comprises a mold body, wherein the mold body is provided with an injection molding hole and two or more pairs of glasses leg grooves, the injection molding hole is located at the end of the mold body, and is connected with a diversion trench thereon, the diversion trench is provided with a drainage trench, and the drainage trench is respectively communicated with the glasses leg grooves to form a cavity of the glasses leg, the diversion trench and the drainage trench. The mould body is provided with at least two pairs of lens leg grooves, so that the production efficiency can be effectively improved.

In view of the above-mentioned related technologies, the inventor thinks that there is the defect that the demolding is inconvenient, because after the plastic molding, the product is ejected from the cavity by means of an ejection component such as an ejector pin or the like, or the product is manually pulled out from the cavity, so as to complete the demolding of the glasses legs, but both the ejector pin and the manual operation are troublesome, and the operation is complicated.

SUMMERY OF THE UTILITY MODEL

In order to facilitate product demoulding, reduce artificial operating procedure, the application provides a glasses leg injection mold.

The application provides a glasses leg injection mold adopts following technical scheme:

the utility model provides a glasses leg injection mold, includes the mould body, be provided with injection molding hole and die cavity on the mould body, the mould body includes mould and lower mould, upward be provided with the promotion subassembly on going up between mould and the lower mould, the promotion subassembly includes push rod and connecting plate, the vertical mounting groove that is provided with on the lower mould, the push rod is located the mounting groove, and the upper end and the die cavity lower surface intercommunication of push rod, the lower extreme and the connecting plate fixed connection of push rod, the connecting plate is connected on last mould.

Through adopting above-mentioned technical scheme, after finishing moulding plastics, go up the mould and rise, drive the push rod and rise, and then drive the connecting plate and rise to make the push rod up end promote the product that is located the die cavity, release the product after the shaping from the die cavity, reduced the manual work of digging out or using the ejecting product of thimble of manual work, practiced thrift the manual work, improved drawing of patterns efficiency.

Preferably, the side of going up the mould is provided with the connecting rod, the connecting plate includes riser and diaphragm, the upper end of riser is connected on the connecting rod, the diaphragm is with the lower extreme fixed connection of riser, each the lower extreme of push rod all connects on the diaphragm.

By adopting the technical scheme, the pushing piece is connected to the side face of the upper die, so that the problem that the pushing piece is driven by the upper die to rise is solved, the pushing step can be clear at a glance, and the pushing piece is convenient to mount and dismount.

Preferably, an open slot is formed in the vertical plate, the open slot is formed along the length of the vertical plate, and the vertical plate is connected to the connecting rod in a sliding mode through the open slot.

Through adopting above-mentioned technical scheme, the setting up of open slot makes and goes up the mould and drive the push rod again after a section distance that rises and rises, is convenient for let the product drawing of patterns, has reduced the push rod and has pushed up the possibility that the mould cavity condition takes place to last the product.

Preferably, the die cavity comprises a guide groove and a glasses leg groove, the guide groove is communicated with the injection molding hole and the glasses leg groove, and the glasses leg groove is provided with more than two pairs.

Through adopting above-mentioned technical scheme, the setting in more than two pairs of shank grooves makes injection moulding efficiency improve.

Preferably, the upper end of the push rod is communicated with the diversion trench.

Through adopting above-mentioned technical scheme, avoided the direct contact of push rod up end with the mirror leg, avoided the push rod up end to cause the damage to mirror leg surface.

Preferably, the guide groove is provided with a limiting groove, the upper end of the push rod is provided with a limiting piece, and the limiting piece is clamped in the limiting groove.

Through adopting above-mentioned technical scheme, the setting of spacing piece can let the push rod up end all the time in the die cavity and die cavity top, avoids the push rod up end to slide into the mounting groove, influences the normal use of push rod, and the setting of spacing groove then can supply spacing piece installation, avoids spacing piece protrusion in the guiding gutter.

Preferably, the upper end surfaces of the upper die and the lower die are provided with buffer blocks, and the buffer blocks are arranged at four end corners of the lower die.

Through adopting above-mentioned technical scheme, when last mould and lower mould merge, because the setting of buffer block, can reduce the collision between last mould and the lower mould, play the absorbing effect of buffering.

Preferably, the lower end of the buffer block is provided with a buffer spring.

Through adopting above-mentioned technical scheme, buffer spring has improved the buffering shock attenuation effect of buffer block.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the pushing piece, the pushing rod can be directly driven to ascend by utilizing the ascending of the upper die, and the pushing rod automatically pushes out a molded product, so that the operation that the product is directly pushed by hands or pushed out by a thimble by manpower is reduced, the manpower is saved, and the damage to the surface of the product can be reduced;

through the setting of open slot, can drive the push rod again and rise after last mould rises a distance, avoided the push rod to push up the problem at last model intracavity with the product.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic structural view of an upper die and a lower die of a cavity in an embodiment of the present application;

FIG. 3 is a schematic view of the position of the push rod in the embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a putter in an embodiment of the present application;

FIG. 5 is an enlarged schematic view of portion A of FIG. 4;

fig. 6 is a schematic cross-sectional view of the buffer block in the present embodiment.

Reference numerals: 1. a mold body; 11. an upper die; 111. injection molding holes; 112. a first positioning block; 113. a first positioning hole; 114. a connecting rod; 12. a lower die; 121. a second positioning block; 122. a second positioning hole; 123. a support leg; 124. a buffer hole; 125. a buffer block; 126. a buffer spring; 2. a cavity; 21. a diversion trench; 22. a temple slot; 3. a pushing assembly; 31. a push rod; 32. a connecting plate; 321. a vertical plate; 3211. an open slot; 322. a transverse plate; 33. a limiting sheet; 4. a lifting area.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses glasses leg injection mold. Referring to fig. 1 and 2, the glasses leg injection mold comprises a mold body 1 and a cavity 2, wherein the mold body 1 comprises an upper mold 11 and a lower mold 12, the cavity 2 is located on the lower surface of the upper mold 11 and the upper surface of the lower mold 12, an injection molding hole 111 vertically penetrates through the upper mold 11, and a pushing assembly 3 is arranged on the side surfaces of the upper mold 11 and the lower mold 12.

Referring to fig. 2, the cavity 2 includes a guide channel 21 and a leg channel 22, two or more pairs of leg channels 22 are provided to improve the injection molding efficiency of the legs, and both ends of the guide channel 21 are respectively communicated with the ends of the injection molding hole 111 and the leg channel 22. The upper die 11 is provided with a first positioning block 112 and a first positioning hole 113, the lower die 12 is provided with a second positioning block 121 and a second positioning hole 122, and when the first positioning block 112 is matched with the second positioning hole 122 and the first positioning hole 113 is matched with the second positioning block 121, the upper die 11 and the lower die 12 are combined to form a complete die cavity 2.

Referring to fig. 3, a support leg 123 is disposed at the lower end of the lower mold 12, so that a lifting area 4 is formed between the lower mold 12 and the placing plane, the pushing member includes a pushing rod 31 and a connecting plate 32, the connecting plate 32 includes a vertical plate 321 and a transverse plate 322, the transverse plate 322 is horizontally disposed in the lifting area 4, the vertical plate 321 is provided with two pieces, which are respectively connected to two ends of the transverse plate 322, and the lower end of the pushing rod 31 is fixed on the transverse plate 322. The side of the upper die 11 is provided with a connecting rod 114, the upper end of the vertical plate 321 is provided with an open slot 3211, the open slot 3211 is arranged along the length direction of the vertical plate 321, and the vertical plate 321 is connected to the connecting rod 114 through the open slot 3211 in a sliding manner. When the upper mold 11 is lifted, the connecting rod 114 is lifted, and the vertical plate 321 is lifted, so that the horizontal plate 322 and the push rod 31 are lifted in the lifting area 4.

Referring to fig. 4, a mounting groove is vertically formed in the lower mold 12, the push rod 31 is located in the mounting groove, and in combination with fig. 2, the upper surface of the push rod 31 is communicated with the diversion trench 21 in the cavity 2, and after a product is formed, the push rod 31 pushes the product in the diversion trench 21 upwards to be demolded, so that the product in the temple trench 22 connected with the product in the diversion trench 21 is driven to be demolded. Since the product in the guiding groove 21 needs to be removed in the subsequent processing, the direct contact between the upper end surface of the push rod 31 and the product in the guiding groove 21 does not affect the quality of the product in the temple groove 22.

Referring to fig. 5, a limiting groove is formed in the diversion trench 21, a limiting piece 33 is arranged on the upper end face of the push rod 31, the limiting piece 33 falls in the limiting groove, the upper end face of the limiting piece 33 is flush with the lower end face of the diversion trench 21, and the descending distance of the push rod 31 is limited by the limiting groove and the limiting piece 33.

Referring to fig. 6, four corners of the upper surface of the lower mold 12 are provided with buffer holes 124, a buffer block 125 is provided in the buffer holes 124, a buffer spring 126 is provided at the lower end of the buffer block 125, and when the upper mold 11 and the lower mold 12 are separated, the buffer block 125 protrudes out of the upper surface of the lower mold 12. When the upper mold 11 and the lower mold 12 are combined, the upper mold 11 presses the buffer block 125, and the buffer block 125 compresses the buffer spring 126, providing a buffering and shock-absorbing effect, reducing the collision between the upper mold 11 and the lower mold 12.

The implementation principle of glasses leg injection mold of the embodiment of the application is as follows: the upper die 11 descends, and is combined with the lower die 12 to form a closed cavity 2, glue is injected from the injection molding hole 111, plastic flows to the diversion trench 21 from the injection molding hole 111 and then flows into the temple trench 22, after the plastic is cooled and molded, the upper die 11 ascends to drive the vertical plate 321 and the transverse plate 322 to ascend, further drive the push rod 31 to ascend in the vertical direction along the installation trench, and the upper end of the push rod 31 ejects a product out of the diversion trench 21, so that automatic demolding of the product is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a glasses leg injection mold, includes mould body (1), be provided with on mould body (1) and mould plastics hole (111) and die cavity (2), its characterized in that: mould body (1) is including last mould (11) and lower mould (12), upward be provided with between mould (11) and lower mould (12) and promote subassembly (3), it includes push rod (31) and connecting plate (32) to promote subassembly (3), the vertical mounting groove that is provided with on lower mould (12), push rod (31) are located the mounting groove, and the upper end and die cavity (2) lower surface intercommunication of push rod (31), the lower extreme and connecting plate (32) fixed connection of push rod (31), connecting plate (32) are connected on last mould (11).

2. The temple arm injection mold of claim 1, wherein: the side of going up mould (11) is provided with connecting rod (114), connecting plate (32) are including riser (321) and diaphragm (322), the upper end of riser (321) is connected on connecting rod (114), the lower extreme fixed connection of diaphragm (322) and riser (321), each the lower extreme of push rod (31) is all connected on diaphragm (322).

3. The temple arm injection mold of claim 2, wherein: an opening groove (3211) is formed in the vertical plate (321), the opening groove (3211) is formed along the length of the vertical plate (321), and the vertical plate (321) is connected to the connecting rod (114) in a sliding mode through the opening groove (3211).

4. The temple arm injection mold of claim 1, wherein: the mold cavity (2) comprises a guide groove (21) and a glasses leg groove (22), the guide groove (21) is communicated with an injection molding hole (111) and the glasses leg groove (22), and more than two pairs of glasses leg grooves (22) are arranged.

5. The temple arm injection mold of claim 4, wherein: the upper end of the push rod (31) is communicated with the diversion trench (21).

6. The temple arm injection mold of claim 5, wherein: be provided with the spacing groove on guiding gutter (21), push rod (31) upper end is provided with spacing piece (33), spacing piece (33) joint in the spacing inslot.

7. The temple arm injection mold of claim 1, wherein: the upper end face of the lower die (12) is provided with buffer blocks (125), and the buffer blocks (125) are arranged at four end corners of the lower die (12).

8. The temple arm injection mold of claim 7, wherein: and a buffer spring (126) is arranged at the lower end of the buffer block (125).

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