CN214294276U

CN214294276U - Injection mold convenient to drawing of patterns

Info

Publication number: CN214294276U
Application number: CN202120219893.4U
Authority: CN
Inventors: 洪丽蓉
Original assignee: Xiamen Yudefeng Plastic Co ltd
Current assignee: Xiamen Yudefeng Plastic Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-28
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold convenient for demolding, which solves the demolding difficulty, needs to spray demolding powder inside a mold cavity, has complex operation, easily influences the surface quality of finished products, and easily damages the molding surface through the hard ejection of an ejector rod, and comprises a bottom plate and an upper top plate, wherein the upper surface of the bottom plate is provided with a female mold, the upper surface of the bottom plate is fixed with a first cylinder and a second cylinder through screws, the end part of the first cylinder is welded with a block, the bottom of the block is clamped with a sealing gasket, the telescopic end of the second cylinder is welded with a push block, the two sides of the female mold are fixed with a turbine seat through bolts, the upper surface of the turbine seat is fixed with a turbine, the bottom of the upper top plate is fixed with an oil cylinder through screws, the telescopic end of the oil cylinder is welded with a connecting plate, the inner side of the connecting plate is welded with a male mold, the step of smearing the demolding powder is saved, and the time is saved, the working efficiency is improved, and the situation that the finished product is directly adhered to the male die to cause strain of the forming surface is effectively avoided.

Description

Injection mold convenient to drawing of patterns

Technical Field

The utility model relates to an injection mold technical field especially relates to an injection mold convenient to drawing of patterns.

Background

Injection molding refers to a method in which a plastic material that is completely melted is stirred by a screw at a certain temperature, injected into a mold cavity at high pressure, cooled and solidified to obtain a molded article. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods.

Because plastics have certain viscosity, if the mould design is unreasonable, and drawing die angle undersize, the finished product adhesion after can appearing moulding plastics and accomplishing makes the drawing of patterns difficult, mainly is to solve this problem at the shaping face shower demolding powder among the prior art, but complex operation to cause the condition of mould surface quality reduction to take place easily, if it is ejecting directly through the kicking block, then can cause the condition that the shaping face pulled up.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the drawing of patterns difficulty among the prior art, need spray the release powder in the die cavity is inside, complex operation to influence finished product surface quality easily, damage the shortcoming of profiled surface easily through the ejector pin hard top, and the injection mold of the drawing of patterns of being convenient for that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an injection mold convenient to drawing of patterns, includes bottom plate and last roof, surface mounting has the die on the bottom plate, and bottom plate upper surface screw fixation has first cylinder and second cylinder, the welding of first cylinder tip has the sprue, sprue bottom card is equipped with sealed the pad, the flexible end welding of second cylinder has the ejector pad, and die both sides bolt fastening has the turbine seat, the screw fixation of turbine seat upper surface has the turbine, it has the hydro-cylinder to go up roof bottom screw fixation, the flexible end welding of hydro-cylinder has the connecting plate, the inboard welding of connecting plate has the terrace die, goes up the welding of roof bottom and has the spring, the welding of spring one end has the push pedal, the welding of push pedal one end has the push rod, the welding of push rod tip has the restriction piece.

Preferably, the top of the female die is provided with a telescopic groove matched with the blocking block.

Preferably, an air inlet hole connected with the telescopic groove is formed in one side of the female die, and the turbine air outlet is connected with one end of the air inlet hole.

Preferably, the surface of the male die is provided with a groove matched with the push rod and the limiting block.

Preferably, the bottom of the female die is provided with a mounting groove matched with the first cylinder and the second cylinder.

Preferably, the first cylinder and the second cylinder penetrate through and extend to the inside of the female die.

The utility model has the advantages that:

1. the die saves the step of coating the demoulding powder, saves time, improves the working efficiency, and simultaneously effectively avoids the finished product from being directly adhered to the male die to cause the pulling damage of the forming surface;

2. this mould passes through the air-blowing device and effectively demolds to the finished product, and rethread ejector pin is ejecting with the finished product, effectively avoids the finished product to damage.

Drawings

Fig. 1 is a schematic structural view of an injection mold convenient for demolding according to the present invention;

FIG. 2 is a schematic view of a vertical cross-sectional structure of an injection mold convenient for demolding according to the present invention;

fig. 3 is the utility model provides an injection mold convenient to drawing of patterns local enlarged structure sketch of A department in fig. 2.

In the figure: the device comprises a base plate 1, a female die 2, a first cylinder 3, a block 4, a sealing gasket 5, a second cylinder 6, a push block 7, a turbine seat 8, a turbine 9, a male die 10, a connecting plate 11, an oil cylinder 12, an upper top plate 13, a spring 14, a push plate 15, a push rod 16 and a limiting block 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an injection mold convenient to drawing of patterns, includes bottom plate 1 and

top plate

13, 1 last surface mounting of bottom plate has die 2, and 1 last surface screw of bottom plate is fixed with first cylinder 3 and

second cylinder

6, 3 end welding of first cylinder has sprue 4, sprue 4 bottom card is equipped with sealed pad 5, the flexible end welding of second cylinder 6 has ejector pad 7, and 2 both sides bolt fastening of die have

turbine seat

8, 8 last surface screw fastening of turbine seat has turbine 9, top plate 13 bottom screw fastening has hydro-cylinder 12, the flexible end welding of hydro-cylinder 12 has connecting plate 11, the inboard welding of connecting plate 11 has terrace die 10, and top plate 13 bottom welding has

spring

14, 14 one end welding has push pedal 15, the welding of 15 one end of push pedal has push rod 16, the welding of 16 tip of push rod has limiting block 17.

The flexible groove of 4 complex of sprue is seted up at 2 tops of die, the fresh air inlet of being connected with flexible groove is seted up to 2 one sides of die, the 9 air outlets of turbine are connected with fresh air inlet one end, terrace die 10 surfaces seted up with push rod 16 and restriction piece 17 complex recess, 2 bottoms of die seted up with

first cylinder

3 and 6 complex mounting grooves of second cylinder, the flexible end of first cylinder 3 and second cylinder 6 runs through and extends to the inside of die 2.

In the embodiment, a concave die 2 is arranged on the upper surface of a bottom plate 1, a first cylinder 3 and a second cylinder 6 are fixed through screws, the telescopic ends of the first cylinder 3 and the second cylinder 6 penetrate and extend into the concave die 2, a block 4 is welded at the end part of the first cylinder 3, a push block 7 is fixed at the end part of the second cylinder 6, a telescopic groove matched with the block 4 is formed in the top of the concave die 2, a dense gasket 5 is clamped at the bottom of the block 4, two sides of the concave die 2 are in screwed connection with a turbine seat 8, a turbine 9 is arranged on the upper surface of the turbine seat 8, air inlet holes are formed in two sides of the concave die 2, one end of each air inlet hole penetrates through the telescopic groove, the other end of each air inlet hole is connected with an air outlet end of the turbine 9, when the concave die is demolded, the first cylinder 3 is in an extending state, the second cylinder 6 is in a contracting state, the first cylinder 3 contracts after the concave die is demolded, the block 4 descends, the gasket 5 at the bottom of the block 4 is in contact with the bottom of the telescopic groove, and air leakage is effectively avoided, then the turbine 9 runs, blows to inside, receives the atmospheric pressure influence, can make finished product and die 2 break away from, and the second cylinder 6 stretches out afterwards, and ejector pad 7 pushes out finished product die 2, and the device can effectively avoid ejector pad 7 directly to push out the finished product, damages the profiled surface, effectively avoids simultaneously need scribble the drawing of patterns powder in the production process.

Further, the bottom of the upper top plate 13 is in threaded connection with an oil cylinder 12, the bottom of the upper top plate is also welded with a spring 14, one end of the spring 14 is welded with a push plate 15, the bottom of the push plate 15 is welded with a push rod 16, the push rod 16 penetrates through and extends to the inner side of the male die 10, the end portion of the push rod 16 is welded with a limiting block 17, the telescopic end of the oil cylinder 12 is welded with a connecting plate 11, the male die 10 is welded on the inner side of the connecting plate 11, when the oil cylinder 12 contracts, the male die 10 is separated from the female die 2, the limiting block 17 presses a finished product in the female die 2 under the action of the spring 14 to prevent the finished product from being adhered to the male die 10, then the oil cylinder 12 ascends again to enable the limiting block 17 to be separated from the female die 2, when the oil cylinder 12 extends out, the limiting block 17 is driven to descend to carry out die assembly, and the arrangement effectively avoids the finished product from being pulled out along with the male die 10 to cause defects on a forming surface.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The injection mold convenient for demolding comprises a bottom plate (1) and an upper top plate (13), and is characterized in that a female die (2) is mounted on the upper surface of the bottom plate (1), a first cylinder (3) and a second cylinder (6) are fixed on the upper surface of the bottom plate (1) through screws, a blocking block (4) is welded at the end part of the first cylinder (3), a sealing gasket (5) is clamped at the bottom of the blocking block (4), a pushing block (7) is welded at the telescopic end of the second cylinder (6), turbine seats (8) are fixed on two sides of the female die (2) through bolts, a turbine (9) is fixed on the upper surface of each turbine seat (8) through screws, an oil cylinder (12) is fixed at the bottom of the upper top plate (13), a connecting plate (11) is welded at the telescopic end of the oil cylinder (12), a male die (10) is welded on the inner side of the connecting plate (11), and a spring (14) is welded at the bottom of the upper top plate (13), spring (14) one end welding has push pedal (15), push pedal (15) one end welding has push rod (16), push rod (16) tip welding has limiting block (17).

2. An injection mold convenient for demolding as claimed in claim 1, wherein the top of the female mold (2) is provided with a telescopic groove matched with the block (4).

3. The injection mold convenient to demold as defined in claim 2, wherein an air inlet connected with the expansion slot is formed at one side of the female mold (2), and an air outlet of the turbine (9) is connected with one end of the air inlet.

4. An injection mold convenient for demolding as claimed in claim 1, wherein the surface of the male mold (10) is provided with a groove matched with the push rod (16) and the limiting block (17).

5. An injection mold convenient for demolding as claimed in claim 1, wherein the bottom of the female mold (2) is provided with mounting grooves matched with the first cylinder (3) and the second cylinder (6).

6. An injection mould facilitating demoulding according to claim 1, wherein the telescopic ends of the first cylinder (3) and the second cylinder (6) extend through and into the female mould (2).