CN219294627U - Injection molding die for tripping thin-wall peripheral ring - Google Patents

Abstract

The utility model discloses an injection molding die for tripping a thin-wall peripheral ring, which particularly relates to the technical field of injection molding dies, and comprises a bottom plate, wherein two sides of the top of the bottom plate are fixedly provided with base plates, the top of each base plate is fixedly provided with a lower die holder, the top of each lower die holder is fixedly provided with an upper die holder, the inner sides of the lower die holder and the upper die holder are provided with molding cavities, the inner sides of the molding cavities are provided with a plurality of uniformly arranged tripping assemblies, an ejector plate is fixedly arranged between the two base plates, the top of the ejector plate is provided with a fixed die plate, an injection molding pipe penetrates through the center of the top of the fixed die plate, the upper end of the fixed die plate is provided with a floating die plate, four corners of the ejector plate are respectively fixedly provided with a connecting rod, the outer sides of the connecting rods are sleeved with springs, and the top of the connecting rods are fixedly connected with the fixed die plate. According to the utility model, the peripheral ring inclined ejector is fixed on the sleeve through the connecting block, and ejection and reset are synchronous with the ejector plate, so that the convex buckle is prevented from being blocked on the die in the demolding process, the injection molding part is damaged, and burrs are reduced.

Description

Injection molding die for tripping thin-wall peripheral ring

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection molding mold with a thin-wall peripheral ring released.

Background

The injection molding mold is used for molding plastic parts, specifically, molten sizing material is contained in a preset cavity, the plastic parts molded along the outline of the cavity are obtained after the sizing material is cooled and molded, and thus the plastic parts in the preset shape are obtained, wherein after the sizing material is cooled and molded, a demoulding mechanism on the injection molding mold can eject the cooled and molded plastic parts from the injection molding mold, however, in the use process of the injection molding mold, the following technical problems are often encountered due to the characteristics of thinner wall thickness and more buckling positions of the mold:

1. various convex buckles are arranged on part of the plastic parts, and the convex buckles are easy to clamp on the mould in the demoulding process, so that the plastic parts are damaged;

2. when the existing injection molding die utilizes the core to eject an injection molding piece, the ejector rod penetrating through the core can relatively displace with the core, so that when the core is reset, the ejector rod can scratch the inner wall surface of the core. After the inner wall surface of the core is scratched, burrs can appear on the injection molding piece during injection molding again. The core replacement is time-consuming and labor-consuming and is high in cost.

Disclosure of Invention

The utility model aims to provide an injection molding die with a thin-wall peripheral ring released, so as to solve the problems in the background art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an injection moulding mould that thin wall border was tripped, includes the bottom plate, the equal fixed mounting in top both sides of bottom plate has the backing plate, the top fixed mounting of backing plate has the die holder, the top fixed mounting of die holder has the upper die base, the inboard of die holder and upper die base is equipped with the shaping chamber, the inboard of shaping chamber is equipped with the tripping device of a plurality of even arrangement, two fixedly between the backing plate is equipped with the thimble board, the top of thimble board is equipped with the fixed bolster, the top central authorities of fixed bolster run through and are equipped with the injection pipe, the upper end of fixed bolster is equipped with the floating die board, be equipped with cold runner template between fixed bolster and the floating die board, the equal fixed mounting in four corners of thimble board has the connecting rod, the outside cover of connecting rod is equipped with the spring, the top and the fixed die board fixed connection of connecting rod.

Further, the tripping assembly comprises a supporting column, a sleeve is sleeved at the upper end of the supporting column in a sliding mode, a connecting block is fixedly arranged at the top of the sleeve, a peripheral ring inclined top is clamped at the top of the connecting block, and a movable mold core is sleeved on the outer side of the peripheral ring inclined top.

Further, the thimble board includes thimble board and lower thimble board, the top four corners of thimble board is all fixed and is equipped with the thimble, a plurality of pore has been seted up on the fixed bolster, the thimble extends from bottom to top and fills the pore.

Furthermore, both sides of the upper die holder and the lower die holder are respectively provided with a pair of cooling pipes in a penetrating way, a cooling pipeline is arranged in the cold runner template, and the cooling pipes extend into the forming cavity and are communicated with the cooling pipeline.

Further, a locking template is arranged above the floating template, a material injection port is formed in the center of the top of the locking template, and symmetrically arranged threaded holes are formed in the two sides of the material injection port.

Further, a sleeve rod is fixedly arranged at the top of the base plate, a sleeve is fixedly arranged at the inner side of the upper die holder, and the top of the sleeve rod penetrates through the lower die holder to be matched with the sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the trip assembly is arranged, and the peripheral ring inclined ejector is ejected along with the product and synchronously ejected by adopting the structure of the peripheral ring inclined ejector; the support column penetrates through the whole set of assembly and is matched with the movable mould core, the sleeve is ejected along with the ejector plate, the peripheral ring inclined ejector is fixed on the sleeve through the connecting block, ejection and resetting are synchronous with the ejector plate, so that relative movement cannot occur, the convex buckle is prevented from being blocked on the mould in the demoulding process, and the injection molding part is damaged;

2. according to the utility model, the fixed template and the ejector plate are connected through the connecting rod, when the fixed template ascends, the ejector plate is driven to ascend, the movable mould core fixed on the fixed template and the ejector pin fixed on the ejector plate cannot move relatively, and the ejector pin cannot damage a pore canal of the fixed template during resetting, so that burrs are not easy to generate in the produced injection molding piece.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is an exploded schematic view of the internal structure of the present utility model;

FIG. 4 is a schematic structural view of the trip assembly of the present utility model;

FIG. 5 is a top cross-sectional view of a cold runner mold plate of the present utility model;

in the figure: 1. a bottom plate; 2. a backing plate; 3. a lower die holder; 4. an upper die holder; 5. a trip assembly; 51. a support column; 52. a sleeve; 53. a connecting block; 54. obliquely pushing the peripheral ring; 55. a moving mold core; 6. a needle ejection plate; 61. an upper ejector plate; 62. a lower ejector plate; 7. fixing the template; 8. injection molding a tube; 9. a floating template; 10. a connecting rod; 11. a spring; 12. a thimble; 13. a cooling tube; 14. a cooling pipe; 15. locking a template; 16. a material injection port; 17. a loop bar; 18. a sleeve; 19. cold runner mold plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model provides an injection molding mold for releasing a thin-wall circumference, which comprises a bottom plate 1, wherein two sides of the top of the bottom plate 1 are fixedly provided with a base plate 2, the top of the base plate 2 is fixedly provided with a lower mold base 3, the top of the lower mold base 3 is fixedly provided with an upper mold base 4, the inner sides of the lower mold base 3 and the upper mold base 4 are provided with molding cavities, the inner sides of the molding cavities are provided with a plurality of uniformly arranged release assemblies 5, an ejector plate 6 is fixedly arranged between the two base plates 2, the top of the ejector plate 6 is provided with a fixed mold plate 7, the top center of the fixed mold plate 7 is penetrated with an injection molding pipe 8, the upper end of the fixed mold plate 7 is provided with a floating mold plate 9, a cold runner mold plate 19 is arranged between the fixed mold plate 7 and the floating mold plate 9, four corners of the ejector plate 6 are fixedly provided with connecting rods 10, the outer sides of the connecting rods 10 are sleeved with springs 11, and the top of the connecting rods 10 are fixedly connected with the fixed mold plate 9.

In a preferred embodiment, the trip assembly 5 includes a support column 51, a sleeve 52 is slidably sleeved at an upper end of the support column 51, a connection block 53 is fixedly installed at a top of the sleeve 52, a circumferential inclined top 54 is clamped at a top of the connection block 53, and a movable mold core 55 is sleeved at an outer side of the circumferential inclined top 54.

In a preferred embodiment, the thimble plate 6 includes an upper thimble plate 61 and a lower thimble plate 62, the four corners of the top of the thimble plate 6 are fixedly provided with thimble 12, the fixed template 7 is provided with a plurality of holes, and the thimble 12 extends from bottom to top and fills the holes.

In a preferred embodiment, a pair of cooling pipes 13 are arranged on both sides of the upper die holder 4 and the lower die holder 3 in a penetrating manner, a cooling pipeline 14 is arranged in the cold runner mold plate 19, the cooling pipes 13 extend into the molding cavity and are communicated with the cooling pipeline 14, and cooling water is injected into the cooling pipes 13, and uniform heat dissipation in the molding cavity is achieved through the cooling pipeline 14.

In a preferred embodiment, a locking plate 15 is arranged above the floating die plate 9, a material injection hole 16 is formed in the center of the top of the locking plate 15, symmetrically arranged threaded holes are formed in two sides of the material injection hole 16, thermoplastic material is injected into the forming cavity through the material injection hole 16, and the locking plate 15 is fixed on the top surface of the upper die holder 4 through bolts.

In a preferred embodiment, a sleeve rod 17 is fixedly installed at the top of the base plate 2, a sleeve 18 is fixedly installed at the inner side of the upper die holder 4, the top of the sleeve rod 17 penetrates through the lower die holder 3 to be matched with the sleeve 18, and the stability of the lower die holder 3 and the upper die holder 4 in the relative movement process is ensured through the guiding action of the sleeve 18 and the sleeve rod 17.

The working principle of the utility model is as follows: by adopting the structure of the peripheral ring inclined roof 54, the peripheral ring inclined roof 54 is ejected along with the product and synchronously ejected; the supporting column 51 penetrates through the whole set of assembly and is matched with the movable mould core 55, the sleeve 52 is ejected along with the ejector plate 6, the peripheral ring inclined ejector 54 is fixed on the sleeve 52 through the connecting block 53, and ejection and resetting are synchronous with the ejector plate 6, so that relative movement cannot occur, the convex buckle is prevented from being blocked on the mould in the demoulding process, and the injection molding part is damaged; the fixed template 9 and the ejector plate 6 are connected through the connecting rod 10, when the fixed template 7 ascends, the ejector plate 6 is driven to ascend, the movable mold core 55 fixed on the fixed template 7 and the ejector pin 12 fixed on the ejector plate 6 cannot move relatively, the ejector pin 12 cannot damage a pore canal of the fixed template 9 during resetting, and therefore burrs are not easy to generate on produced injection molding pieces.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. Injection moulding mould that thin wall week circle was tripped, including bottom plate (1), its characterized in that: the utility model discloses a plastic injection machine, including base plate (1), die holder (2), die holder (3), die holder (4), connecting rod (10) and fixed template (7), die holder (3) and die holder (4), die holder (2) are equipped with backing plate (2) in the top both sides of base plate (1), die holder (3) are equipped with at the top fixed mounting at top both sides, die holder (2) are equipped with die holder (2) in the top both sides, die holder (7) are equipped with at top fixed mounting at top, die holder (9) are equipped with in the top central authorities of top of fixed template (7) run through and are equipped with injection pipe (8), be equipped with cold runner template (19) between fixed template (7) and the floating template (9), connecting rod (10) are equipped with in the equal fixed mounting in four corners of die holder (6), the outside cover of connecting rod (10) is equipped with spring (11), the top and the fixed template (7) of connecting rod (10) are fixedly connected.

2. The thin-walled peripheral ring trip injection mold of claim 1, wherein: the tripping assembly (5) comprises a supporting column (51), a sleeve (52) is sleeved at the upper end of the supporting column (51) in a sliding mode, a connecting block (53) is fixedly arranged at the top of the sleeve (52), a peripheral oblique top (54) is clamped at the top of the connecting block (53), and a movable mold core (55) is sleeved at the outer side of the peripheral oblique top (54).

3. The thin-walled peripheral ring trip injection mold of claim 1, wherein: the ejector plate (6) comprises an upper ejector plate (61) and a lower ejector plate (62), ejector pins (12) are fixedly arranged at four corners of the top of the ejector plate (6), a plurality of pore channels are formed in the fixed die plate (7), and the ejector pins (12) extend from bottom to top and fill the pore channels.

4. The thin-walled peripheral ring trip injection mold of claim 1, wherein: the two sides of the upper die holder (4) and the lower die holder (3) are respectively provided with a pair of cooling pipes (13) in a penetrating mode, cooling pipelines (14) are arranged in the cold runner die plates (19), and the cooling pipes (13) extend into the forming cavity and are communicated with the cooling pipelines (14).

5. The thin-walled peripheral ring trip injection mold of claim 1, wherein: the upper portion of the floating template (9) is provided with a locking template (15), the center of the top of the locking template (15) is provided with a material injection opening (16), and two sides of the material injection opening (16) are provided with symmetrically arranged threaded holes.

6. The thin-walled peripheral ring trip injection mold of claim 1, wherein: the top of backing plate (2) fixed mounting has loop bar (17), the inboard fixed mounting of upper die base (4) has sleeve (18), the top of loop bar (17) runs through die holder (3) and sleeve (18) looks adaptation.

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