CN206765195U - A kind of efficiently plastic pressing forming mould - Google Patents

Abstract

A kind of efficiently plastic pressing forming mould, belongs to plastic moulds technology field, relates generally to a kind of press-moulding die；The utility model is in order to solve press-moulding die of the prior art, due to unreasonable structure, it is compressing during the flitch surface temperature distribution temperature difference it is big, have impact on the surface effect of product, the problem of product defect rate is high；The first deflector is provided between upper mould insert of the present utility model and upper bolster, some conformal cooling pipes are provided with upper mould insert, first deflector is provided with water inlet, delivery port, some entrance guiding grooves connected with water inlet and some outlet guiding gutters connected with delivery port, entrance guiding groove connects with one end of conformal cooling pipe, and outlet guiding gutter connects with the other end for cooling tube of accompanying；The utility model enhances the overall uniformity of mould, effectively improves operating efficiency, reduces the defect rate of product, has a good application prospect.

Description

A high-efficiency plastic compression molding die

technical field

A pressing mold belongs to the technical field of plastic moulds, and mainly relates to a high-efficiency plastic pressing mold.

Background technique

In the plastic processing process, plastic compression molding molds, as an indispensable equipment, play a very important role in the plastic processing industry. During the pressing process, a good cooling system can provide guarantees for the realization of excellent products: the best dimensional stability In the molding process, due to the complex shape of the product, uneven wall thickness, and different filling sequences, the plastic injected into the mold cavity will solidify when it is solidified. , the temperature at different positions is different, so stress is generated due to heat exchange, and this stress will directly affect the dimensional accuracy and appearance of the finished product. Due to the unreasonable structure of the pressing molding die in the prior art, the surface of the material plate during the pressing molding process The temperature distribution has a large temperature difference, which affects the surface effect of the product, and the product defective rate is high.

Utility model content

In order to solve the above problems, the utility model discloses a high-efficiency plastic pressing mold, which not only has a simple structure, but also has good forming uniformity and uniform stress on demoulding.

The purpose of this utility model is achieved in that:

A high-efficiency plastic compression molding mold, including an upper mold and a lower mold, the upper mold includes an upper mold base and an upper mold insert placed in the upper mold base, and the lower mold includes a lower mold base and a lower mold placed in the lower mold base insert, a first deflector is provided between the upper die insert and the upper die base, a number of conformal cooling pipes are arranged in the upper die insert, and the first deflector is provided with a water inlet, a water outlet, A plurality of inlet diversion grooves communicated with the water inlet and a plurality of outlet diversion grooves communicated with the water outlet, the inlet diversion grooves communicate with one end of the conformal cooling pipe, and the outlet diversion grooves communicate with the other end of the accompanying cooling pipe.

Two adjacent cooling pipes are connected through several cooling branch pipes, and the material plates of different areas or shapes are all within the cooling range, thereby enhancing the cooling precision.

A second deflector is arranged between the lower die insert and the lower die base, and the first deflector and the second deflector have the same structure.

The upper mold includes an exhaust assembly, and the exhaust assembly includes a ventilating steel insert installed on the insert of the upper mold. Several exhaust pipes are arranged on the upper mold base. The position is matched and corresponding. The lower mold is equipped with a lower mold exhaust assembly. The structure of the lower mold exhaust assembly is the same as that of the upper mold. The mold effect is good.

The water inlet of the first deflector is perpendicular to the axis of the inlet diversion groove, and the water outlet is perpendicular to the axis of the outlet diversion groove.

A rubber sealing ring is provided between the inlet diversion groove of the first deflector plate and the cooling pipe of the upper mold to ensure the pressure of the cooling water flow in the cooling cycle and realize the smooth circulating flow of the cooling water.

The lower mold is installed on the support platform, and a nitrogen spring is arranged between the support platform and the lower mold base, and its flexibility is used to realize constant pressure and delay action, with stable work and compact structure.

The distance between the edge of the conformal cooling pipe and the forming surface is the same, the conformal cooling pipe is arranged roughly in parallel, the diameter of the conformal cooling pipe is the same as the distance between the edges of two adjacent conformal cooling pipes, and the cooling is uniform , the cooling effect is precise.

Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, effectively reduces the maximum temperature of the material plate, improves the minimum problem on the material plate, enhances the uniformity of the material plate temperature, and enhances the The overall reliability of the mold, the cooling system composed of the guide plate and the cooling pipe of the utility model, the cooling rate is high, the cooling water flows evenly, the overall uniformity of the mold is enhanced, the working efficiency is effectively improved, and the defective products of the product are reduced rate and has a good application prospect.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic structural view of the first deflector of the embodiment of the present invention.

detailed description

Below in conjunction with accompanying drawing, specific embodiment of the present utility model is described in further detail.

A high-efficiency plastic compression molding die of the present embodiment includes an upper mold and a lower mold, the upper mold includes an upper mold base 1 and an upper mold insert 2 placed in the upper mold base 1, and the lower mold includes a lower mold base 3 and a lower mold base The lower mold insert 4 in the lower mold base 3, the first deflector 5 is provided between the upper mold insert 2 and the upper mold base 1, and a number of conformal cooling pipes 6 are arranged in the upper mold insert 2 The first guide plate 5 is provided with a water inlet 5-1, a water outlet 5-2, a number of inlet guide grooves 5-3 connected with the water inlet 5-1, and a number of outlet guide grooves connected with the water outlet 5-2. The flow groove 5-4, the inlet flow guide groove 5-3 communicate with one end of the conformal cooling pipe 6, and the outlet flow guide groove communicates with the other end of the accompanying cooling pipe 6.

Two adjacent cooling pipes 6 are connected through several cooling branch pipes.

A second deflector 11 is provided between the lower mold insert 4 and the lower mold base 3, and the first deflector 5 and the second deflector have the same structure.

The upper mold includes an exhaust assembly, and the exhaust assembly includes a gas-permeable steel insert 7 installed on the upper mold insert 2, and the upper mold base 1 is provided with some exhaust pipes 8, and the position of the air-permeable steel insert is in line with the The position of the exhaust pipe 8 matches correspondingly.

The water inlet 5-1 of the first deflector 5 is perpendicular to the axis of the inlet diversion groove 5-3, and the water outlet is perpendicular to the axis of the outlet diversion groove.

A rubber sealing ring is provided between the inlet guide groove 5 - 3 of the first guide plate 5 and the upper mold cooling pipe 6 .

Described lower mold is installed on the support platform 9, and nitrogen spring 10 is arranged between support platform 9 and lower mold base 3.

The distance between the edge of the conformal cooling pipe 6 and the forming surface is the same.

The conformal cooling tubes 6 are arranged approximately in parallel, and the diameter of the conformal cooling tubes 6 is the same as the distance between the edges of two adjacent conformal cooling tubes 6 .

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (9)

1. a kind of efficiently plastic pressing forming mould, including upper die and lower die, upper mould includes upper bolster and is placed in upper bolster Upper mould insert, lower mould include die shoe and the lower mould insert being placed in die shoe, it is characterised in that：The upper mould insert and upper mould The first deflector is provided between seat, some conformal cooling pipes are provided with upper mould insert, the first deflector is provided with water inlet, water outlet Mouthful, some entrance guiding grooves connected with water inlet and some outlet guiding gutters connected with delivery port, entrance guiding groove and with One end connection of shape cooling tube, outlet guiding gutter connect with the other end for cooling tube of accompanying.

A kind of 2. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：Between adjacent two cooling tubes Connected by some cooling branch pipes.

A kind of 3. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：The lower mould insert and lower mould The second deflector is provided between seat, and the structure of the first deflector and the second deflector is identical.

A kind of 4. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：The upper mould includes exhaust group Part, gas deflation assembly include the ventilative steel insert being arranged in upper mould insert, and upper bolster is provided with some blast pipes, the ventilative steel The position of insert is corresponding with the location matches of blast pipe.

A kind of 5. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：First deflector enters The mouth of a river is vertical with the axis of entrance guiding groove, and delivery port is vertical with the axis for exporting guiding gutter.

A kind of 6. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：First deflector enters Rubber seal is provided between mouth guiding gutter and upper mould cooling tube.

A kind of 7. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：The lower mould is arranged on support On platform, nitrogen spring is provided between supporting table and die shoe.

A kind of 8. efficiently plastic pressing forming mould according to claim 1, it is characterised in that：The conformal cooling tube edges The distance between forming face is identical.

A kind of 9. efficiently plastic pressing forming mould according to claim 8, it is characterised in that：The conformal cooling pipe is substantially It is arranged in parallel, the diameter of conformal cooling pipe is identical with the distance between adjacent two conformal cooling tube edges.