CN209999626U

CN209999626U - elbow forming die

Info

Publication number: CN209999626U
Application number: CN201920500136.7U
Authority: CN
Inventors: 支运兵
Original assignee: CHENGDU GUANGHONG MOULD MANUFACTURING Co Ltd
Current assignee: CHENGDU GUANGHONG MOULD MANUFACTURING Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-01-31
Anticipated expiration: 2029-04-12

Abstract

The utility model relates to an elbow forming die, including the movable mould board, locate the movable mould chamber on the movable mould board, the fixed mould board and locate on the fixed mould board and the cover half die cavity that corresponds with the movable mould chamber, the movable mould chamber encloses into the return bend die cavity with the cover half die cavity jointly, the middle part of return bend die cavity is provided with the core, the runner that is linked together with the return bend die cavity is offered towards the surface in movable mould chamber to the cover half die cavity, the surface that the movable mould chamber is towards the cover half die cavity slides and is connected with the cutter, the cover half die cavity is located the runner and opens the recess that is equipped with and supplies the cutter to hold outward, be provided with the driving lever that is used for promoting the cutter towards the motion of runner direction on the fixed mould board.

Description

elbow forming die

Technical Field

The utility model relates to an kind of injection mold especially relates to kind return bend forming die.

Background

The application field of plastic bent pipe products is very , the demand of the plastic bent pipe products in the industries of automobiles, household appliances and the like is very large, during the production operation, plastic raw materials are directly added into an open mould cavity, the mould is closed, the plastic becomes a flowing state and fills the cavity under the action of heat and pressure, then the plastic is hardened and shaped due to chemical or physical changes, the method is called injection moulding, and the used mould is called injection moulding mould.

At present, Chinese patent with publication number CN203567035U discloses an injection mold of plastic elbows, which comprises an upper mold body and a lower mold body, wherein the joint surfaces of the upper mold body and the lower mold body are provided with corresponding cavities and runners, the cavities are 2-6 and are symmetrically distributed on the joint surfaces of the upper mold body and the lower mold body, each edge of the cavity is provided with a symmetrical positioning block or positioning frame, and simultaneously, the joint surfaces of the lower mold body and the upper mold body are respectively arranged in a corresponding guide hole or guide column.

However, after the product is formed by the mold, the product in the cavity and the waste material in the runner are fixedly connected , and workers need to separate the product from the waste material by means of a cutter, so that the labor intensity of the workers is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an kinds of return bend forming die, when dismantling the product from the mould, make the product cut apart with the waste material, have the advantage that reduces workman powerful of labour, improvement production efficiency.

The utility model discloses an above-mentioned utility model aims at realizing through following technical scheme return bend forming die, include the movable mould board, locate movable mould chamber, fixed die plate on the movable mould board and locating on the fixed die plate and with the cover half die cavity that the movable mould chamber corresponds, the movable mould chamber with the cover half die cavity encloses jointly and closes into the return bend die cavity, the middle part of return bend die cavity is provided with the core, the runner that is linked together with the return bend die cavity is offered towards the surface in movable mould chamber to the cover half die cavity, the movable mould chamber slides towards the surface in cover half die cavity and is connected with the cutter, the cover half die cavity is located the runner and opens outward and is equipped with the recess that supplies the cutter to hold, be provided with the driving lever that is used for promoting the cutter to move towards the.

By adopting the technical scheme, when the injection product is subjected to condensation molding, the movable mold plate and the movable mold cavity are detached from the fixed mold plate and the fixed mold cavity, so that the product and the mold core move along with the movable mold cavity , core pulling and product separation from the movable mold cavity are facilitated, and when the movable mold cavity is separated from the fixed mold cavity, the deflector rod pushes the cutter to move towards the runner direction, so that the injection product is separated from waste materials, and the injection product has the advantages of reducing labor intensity of workers and improving production efficiency.

The utility model discloses step sets up to be fixed connection with the mount pad on the movable mould board, the slip connection has the blade holder that supplies the cutter to fix on the mount pad.

Through adopting above-mentioned technical scheme, the blade holder slides on the mount pad to realize the cutter with the purpose that product and waste material cut off, the easy operation.

The utility model discloses step sets up to seted up the dovetail groove on the mount pad, fixedly connected with slides the complex trapezoidal piece with the dovetail groove on the blade holder.

Through adopting above-mentioned technical scheme, trapezoidal piece slides the cooperation with the dovetail groove, leads to the direction of motion of cutter for the junction cutting of product and waste material is more smooth and level.

The utility model discloses advance step and set up as end that the cutter was kept away from to the blade holder bulge in the side of mount pad, the driving lever is including being fixed in connecting rod on the fixed die plate and being fixed in the arch of connecting rod tip, the arch can with the trapezoidal piece keeps away from end counterbalance of cutter.

Through adopting above-mentioned technical scheme, the driving lever is keeping away from the in-process of movable mould board, and the connecting rod is kept away from to the terminal surface that the blade holder will be contradicted to the arch and is being promoted the blade holder to drive the cutter towards the junction motion of product and waste material and cut off product and waste material, need not additionally cut off product and waste material again, simple structure.

The utility model discloses step sets up to the dovetail groove is provided with compression spring, compression spring's both ends are fixed in respectively the blade holder with on the cell wall of dovetail groove, work as under the compression spring natural state, the cutter can hold in the recess.

Through adopting above-mentioned technical scheme, compression spring can make the blade holder resume initial position, is about to resume initial position to the cutter, and the cutter can hold in the recess when the movable mould of being convenient for is assembled in with the cover half, reduces the existence of cutter and influences the movable mould die cavity and the laminating of cover half die cavity and play the condition at .

The utility model discloses step sets up to the movable mould die cavity is seted up towards the surface of cover half die cavity with the auxiliary way that corresponds with the runner, the auxiliary way with the return bend die cavity is separated.

By adopting the technical scheme, the auxiliary channel is matched with the flow channel, so that the fluid plastic can better enter the bending die cavity, and the fluid plastic is uniformly distributed in the bending die cavity; the auxiliary channel is spaced from the bent pipe die cavity, so that waste materials are prevented from being formed between the auxiliary channel and the bent pipe die cavity, and a cutter on the movable die cavity can cut off products and the waste materials better.

The utility model discloses it sets up to advance step to the core includes straight core, side core and movable joint core, the movable joint core is located the bending die intracavity, and with the chamber wall clearance of bending die chamber, the end of straight core inlays and locates the outer wall in movable mould chamber, end sets up in addition and supplies the inserted inserting groove of tip of movable joint core, the end of side core inlays and locates movable mould chamber, end has seted up the spread groove in addition, the tip of movable joint core is provided with the connecting block with the spread groove complex of pegging graft.

By adopting the technical scheme, the straight core and the side core suspend the movable joint core in the bent pipe die cavity, and the distance between the movable joint core and the wall of the bent pipe die cavity is the same, so that the wall thickness of the formed product is the same; meanwhile, the straight core, the side core and the movable joint core are matched, so that the core pulling is easier after the product is molded.

The utility model discloses step sets up to all seted up the cooling hole in straight core, side core and the axis department of movable joint core.

By adopting the technical scheme, the cooling holes and the cavity are respectively provided with the cooling channels to cool the inside and the outside of the product to be molded, so that the cooling efficiency of the molded product can be accelerated; meanwhile, the product to be molded is cooled more uniformly, so that the molding precision of the product is higher.

To sum up, the utility model has the beneficial technical effects that when the injection molding product is formed by condensation, the movable mould plate and the movable mould cavity are disassembled from the fixed mould plate and the fixed mould cavity, so that the product and the core move along with the movable mould cavity , the core is convenient to be pulled core and the product is separated from the movable mould cavity, when the movable mould cavity is separated from the fixed mould cavity, the deflector rod pushes the cutter to move towards the runner direction, and the injection molding product is separated from the waste material, therefore, the utility model has the advantages of reducing labor intensity and improving production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a fixed die plate and a fixed die cavity in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a movable die plate and a movable die cavity in an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural view of a core in an embodiment of the present invention.

In the figure, 1, a movable template; 2. a movable model cavity; 3. fixing a template; 4. a die cavity is fixed; 5. a core; 51. a straight core; 52. a side core; 53. a live core; 6. a flow channel; 7. a cutter; 8. a groove; 91. a connecting rod; 92. a protrusion; 10. a mounting seat; 11. a tool apron; 12. a trapezoidal groove; 13. a trapezoidal block; 14. a compression spring; 15. a secondary road; 16. inserting grooves; 17. connecting grooves; 18. connecting blocks; 19. and cooling the holes.

Detailed Description

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

kinds of bend pipe forming dies are shown in figures 1 and 2 and comprise a movable die plate 1, a movable die cavity 2 fixed on the movable die plate 1, a fixed die plate 3 and a fixed die cavity 4 fixed on the fixed die plate 3 and corresponding to the movable die cavity 2, wherein the movable die cavity 2 and the fixed die cavity 4 jointly enclose a bend pipe die cavity, the number of the bend pipe die cavities is four, a die core 5 is installed in the middle of each bend pipe die cavity, a runner 6 is arranged on the surface of the fixed die cavity 4 facing the movable die cavity 2, the runner 6 is respectively communicated with the four bend pipe die cavities, fluid plastic is injected into the bend pipe die cavity through the runner 6, the plastic filled in the bend pipe die cavity is condensed and formed into a product, an auxiliary channel 15 corresponding to the runner 6 is arranged on the surface of the movable die cavity 2 facing the fixed die cavity 4, the auxiliary channel 15 is spaced from the bend pipe die cavity, and the auxiliary channel 15 is matched with the runner 6, so that the fluid plastic can better enter the bend pipe die cavity, the fluid plastic is uniformly distributed in the bend pipe die cavity, and waste is.

The method comprises the steps that a cutter 7 is connected to the surface, facing a fixed die cavity 4, of a movable die cavity 2 in a sliding mode, a groove 8 for accommodating the cutter 7 is formed in the fixed die cavity 4, the fixed die cavity 4 is located outside a runner 6, a deflector rod for pushing the cutter 7 to move towards the runner 6 is fixed on a fixed die plate 3, when an injection product is subjected to condensation molding, the movable die plate 1 and the movable die cavity 2 are detached from the fixed die plate 3 and the fixed die cavity 4, the product and a core 5 move along with a movable die cavity 2 , core pulling is convenient to conduct core pulling on the core 5, the product is separated from the movable die cavity, the deflector rod pushes the cutter 7 to move towards the runner 6 when the movable die cavity 2 is separated from the fixed die cavity 4, the injection product is further separated from waste materials, the advantages that labor intensity of workers is reduced, and production efficiency is improved are achieved.

As shown in fig. 3 and 4, the movable mold plate 1 is fixedly connected with an installation seat 10, and the installation seat 10 is slidably connected with a tool post 11 for fixing the cutting tool 7; the tool apron 11 slides on the mounting seat 10 to achieve the purpose that the cutter 7 cuts off the product and the waste, and the operation is easy. A trapezoidal groove 12 is formed in the mounting seat 10, and a trapezoidal block 13 (see fig. 1) which is in sliding fit with the trapezoidal groove 12 is fixedly connected to the tool apron 11; trapezoidal piece 13 and trapezoidal groove 12 cooperation of sliding for the direction of motion of cutter 7 leads for the junction of product and waste material cuts more smoothly and levelly and smoothly.

The end of the cutter holder 11, which is far away from the cutter 7, protrudes out of the side face of the mounting seat 10, the deflector rod comprises a connecting rod 91 fixed on the fixed die plate 3 and a protrusion 92 fixed on the end portion of the connecting rod 91, the protrusion 92 can abut against the end of the trapezoidal block 13, which is far away from the cutter 7, in the process of keeping away from the movable die plate 1, the protrusion 92 abuts against the end face of the cutter holder 11 and pushes the cutter holder 11 to be far away from the connecting rod 91, so that the cutter 7 is driven to move towards the joint of the product and the waste and cut off the product and the waste, the product and the waste do not need to be cut off additionally, a compression spring 14 is mounted in the trapezoidal groove 12, two ends of the compression spring 14 are respectively fixed on the groove walls of the cutter holder 11 and the trapezoidal groove 12, the cutter 7 can be accommodated in the groove 8 in the natural state of the compression spring 14, the cutter holder 11 can be restored to the initial position, namely, the cutter 7 can be restored to the initial position, the cutter 7 can be accommodated in the groove 8 when.

As shown in fig. 3 and 5, the mold core 5 includes a straight core 51, a side core 52 and an articulated core 53, the articulated core 53 is located in the bending mold cavity and has a gap with the cavity wall of the bending mold cavity, the end of the straight core 51 is embedded in the outer wall of the movable mold cavity 2, the other end is provided with an insertion groove 16 for inserting the end of the articulated core 53, the end of the side core 52 is embedded in the movable mold cavity 2, the other end is provided with a connection groove 17, the end of the articulated core 53 is formed with a connection block 18 in insertion fit with the connection groove 17, the straight core 51 and the side core 52 suspend the articulated core 53 in the bending mold cavity, and the distance from the articulated core 53 to the cavity wall of the bending mold cavity is the same, so that the wall thickness of the product after molding is the product is the same, meanwhile, the straight core 51, the side core 52 and the articulated core 53 are matched, so that the core after the product is molded is easier to be taken, the core, the axis positions of the straight core 51, the side core 52 and the articulated core 53 are all provided with cooling holes 19 and the cooling channel are respectively to be used for cooling the product.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

The elbow forming die comprises a movable die plate (1), a movable die cavity (2) arranged on the movable die plate (1), a fixed die plate (3) and a fixed die cavity (4) arranged on the fixed die plate (3) and corresponding to the movable die cavity (2), wherein the movable die cavity (2) and the fixed die cavity (4) jointly enclose an elbow die cavity, and a core (5) is arranged in the middle of the elbow die cavity, and the elbow forming die is characterized in that a runner (6) communicated with the elbow die cavity is formed in the surface, facing the movable die cavity (2), of the fixed die cavity (4), a cutter (7) is connected to the surface, facing the fixed die cavity (4), of the fixed die cavity (4) in a sliding mode, a groove (8) for accommodating the cutter (7) is formed in the outer portion of the runner (6), and a deflector rod for pushing the cutter (7) to move towards the direction of the runner (6) is arranged on the fixed die plate (3).
2. The elbow pipe forming die of claim 1, wherein the movable die plate (1) is fixedly connected with an installation base (10), and the installation base (10) is slidably connected with a knife holder (11) for fixing the cutting knife (7).
3. The kinds of return bend forming die of claim 2, characterized in that, seted up trapezoidal groove (12) on mount pad (10), fixedly connected with on blade holder (11) with trapezoidal groove (12) sliding fit's trapezoidal piece (13).
4. The elbow forming die of claim 3, wherein the end of the tool post (11) away from the cutter (7) protrudes out of the side of the mounting seat (10), the deflector rod comprises a connecting rod (91) fixed on the fixed die plate (3) and a protrusion (92) fixed on the end of the connecting rod (91), and the protrusion (92) can abut against the end of the trapezoidal block (13) away from the cutter (7).
5. kinds of elbow pipe forming die according to claim 3, wherein the trapezoid-shaped groove (12) is provided with a compression spring (14), both ends of the compression spring (14) are respectively fixed on the tool holder (11) and the groove wall of the trapezoid-shaped groove (12), and the cutter (7) can be accommodated in the groove (8) when the compression spring (14) is in a natural state.
6. The kinds of elbow forming die of claim 1, wherein the surface of the movable die cavity (2) facing the fixed die cavity (4) is provided with an auxiliary channel (15) corresponding to the runner (6), and the auxiliary channel (15) is spaced from the elbow die cavity.
7. The kinds of elbow forming die of claim 1, wherein the core (5) comprises a straight core (51), a side core (52) and a movable joint core (53), the movable joint core (53) is located in the elbow die cavity and has a gap with the cavity wall of the elbow die cavity, the end of the straight core (51) is embedded in the outer wall of the movable die cavity (2), the end is provided with an insertion groove (16) for inserting the end of the movable joint core (53), the end of the side core (52) is embedded in the movable die cavity (2), the end is provided with a connection groove (17), and the end of the movable joint core (53) is provided with a connection block (18) which is in insertion fit with the connection groove (17).
8. The elbow forming die of claim 7, wherein the straight core (51), the side core (52) and the articulated core (53) are provided with cooling holes (19) at their axes.