CN211307200U

CN211307200U - Mold for removing sharp edges of injection molding product

Info

Publication number: CN211307200U
Application number: CN201921617050.9U
Authority: CN
Inventors: 金应寿; 吕金玲; 宋振国
Original assignee: Changchun Faw Fusheng Swell Auto Parts Co ltd
Current assignee: Changchun Fusheng Anchuang Auto Parts Co.,Ltd.
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-08-21
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a get rid of sharp-pointed mould in injection moulding product edge, including movable mould board and fixed die plate, the top of movable mould board contacts with the bottom of fixed die plate, one side difference fixedly connected with movable mould abaculus and the cover half abaculus that movable mould board and fixed die plate are close to each other, the top fixedly connected with cover half mounting panel of fixed die plate, the bottom fixedly connected with supporting shoe of movable mould board, the bottom fixedly connected with movable mould mounting panel of supporting shoe, the sprue gate has been seted up on cover half mounting panel, fixed die plate and the cover half abaculus, cover half abaculus and movable mould abaculus phase-match, and the top of movable mould abaculus has gradual change to add and glues the processing position, the mounting groove has been seted up on the top of movable mould abaculus, fixed mounting has servo cylinder on the bottom inner wall of mounting groove. The utility model discloses simple structure, novelty, the difficult deckle edge that appears of product when can guaranteeing the mould life-span saves man-hour, provides quality assurance for follow-up electroplating, the process of spraying paint.

Description

Mold for removing sharp edges of injection molding product

Technical Field

The utility model belongs to the technical field of the injection moulding product processing, concretely relates to get rid of sharp-pointed mould in injection moulding product edge.

Background

The plastic injection molding product with sharp edge is easy to have material shortage during injection molding. In order to prevent material shortage. The injection pressure is usually increased, which again presents new problems. Namely burrs or broken filaments of the product. A plurality of electroplating knots and paint-spraying broken filaments also appear on the subsequent product after electroplating or paint spraying. The only way now is manual edging. The working hours are wasted, the reject ratio is high, and the service life of the die is also influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a get rid of sharp-pointed mould in injection moulding product edge, the above-mentioned bad problem of product of effective control.

In order to achieve the above object, the utility model provides a following technical scheme: including movable mould board and fixed die plate, the top of movable mould board contacts with the bottom of fixed die plate, and one side that movable mould board and fixed die plate are close to each other is fixedly connected with movable mould insert and cover half insert respectively, the top fixedly connected with cover half mounting panel of fixed die plate, the bottom fixedly connected with supporting shoe of movable mould board, the bottom fixedly connected with movable mould mounting panel of supporting shoe, the sprue gate has been seted up on cover half mounting panel, fixed die plate and the cover half insert, cover half insert and movable mould insert phase-match, and the top of movable mould insert has the gradual change and adds the processing position of gluing.

Preferably, the mounting groove has been seted up on the top of movable mould inserted block, and fixed mounting has servo cylinder on the bottom inner wall of mounting groove, and servo cylinder's the vertical just fixedly connected with push pedal that makes progress of output shaft.

Preferably, the bottom end of the fixed die plate is fixedly connected with a guide sleeve, the top end of the movable die plate is fixedly connected with a guide post, and the top end of the guide post extends into the guide sleeve.

Preferably, the top ends of the guide posts are of a circular truncated cone-shaped structure, and the distance between the top ends of the guide posts is smaller than that between the bottom ends of the guide posts.

Preferably, a thread groove is formed in one side of the movable template, and a hanging ring is installed in the thread groove.

Preferably, the top end of the fixed die mounting plate is fixedly connected with a positioning ring.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages that:

1. the structure is simple and novel. Compared with a mould with an unmodified structure, the design and processing cost is almost unchanged;

2. the yield of products is greatly improved in the injection molding production. Because the injection pressure is not increased, the product is not easy to generate burrs or broken wires while the service life of the die is ensured;

3. the working hours are saved. The working procedure of trimming the burrs or broken filaments at the edges of the product by workers is cancelled, so that the workers can work more easily;

4. the quality assurance is provided for the subsequent electroplating and paint spraying processes, and the factor material piece is qualified, so that 100 percent of the quality inspection process can be directly put into the next process before the electroplating or paint spraying process is cancelled.

Drawings

Fig. 1 is a main perspective sectional view of the present invention;

FIG. 2 is a partially enlarged schematic view of the position A before modification of the present invention;

FIG. 3 is the modified A position local magnification diagram of the utility model

In the figure: 1. a movable die mounting plate; 2. a support block; 3. moving the template; 4. fixing a template; 5. a fixed die mounting plate; 6. positioning rings; 7. a movable mold insert; 8. fixing the mold insert; 9. a guide sleeve; 10. a guide post; 11. mounting grooves; 12. a servo cylinder; 13. pushing the plate; 14. a hoisting ring; 15. gradually changing the glue adding position; 16. and a pouring gate.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-3, the present invention provides a technical solution for removing sharp mold at edge of injection molding product: the device comprises a movable template 3 and a fixed template 4, wherein the top end of the movable template 3 is contacted with the bottom end of the fixed template 4, one side of the movable template 3, which is close to the fixed template 4, is fixedly connected with a movable mould insert 7 and a fixed mould insert 8 respectively, the top end of the fixed template 4 is fixedly connected with a fixed mould mounting plate 5, the bottom end of the movable template 3 is fixedly connected with a supporting block 2, the bottom end of the supporting block 2 is fixedly connected with a movable mould mounting plate 1, the fixed mould mounting plate 5, the fixed template 4 and the fixed mould insert 8 are provided with a sprue gate 16, molten plastic can be injected into a film cavity reserved between the movable mould insert 7 and the fixed mould insert 8 through the sprue gate 16, a product can be formed after the molten plastic is cooled, an electroplating knot and a paint-spraying wool are easily formed on the product in the prior art, the fixed mould insert 8 is matched with the movable mould insert 7, and a, in the case that the visible surface of the product of the customer cannot be changed, glue is properly added locally on the invisible surface (starting at 0.1mm from the parting line) adjacent to the parting line. So that the product can be smoothly filled under the normal injection pressure. The problems of burrs or broken wires and mold expansion of products under high pressure are solved, wherein the fixed connection is specifically bolt fixed connection.

Wherein, mounting groove 11 has been seted up on the top of movable mould inserted block 7, has servo cylinder 12 through bolt and nut fixed mounting on the bottom inner wall of mounting groove 11, and the vertical upwards just welding of output shaft of servo cylinder 12 has push pedal 13, and after injection moulding and cooling are accomplished, movable mould board 3 is separated the back with fixed die plate 4 downwards, and control servo cylinder 12 extension can be through push pedal 13 with the product jack-up to can be convenient take off the product of processing completion, improve production efficiency.

Wherein, the bottom welding of fixed die plate 4 has uide bushing 9, and the top welding of movable mould board 3 has guide post 10, and in the top of guide post 10 extended to uide bushing 9, when fixed die plate 4 was close to when being in the same place with movable mould board 3, guide post 10 inserted can play the effect of location direction in the uide bushing 9 for the position can not produce the skew when fixed die plate 4 and the 3 blocks of movable mould board.

Wherein, the top of guide post 10 is round platform shape structure, and is less than between the bottom of guide post 10 between the top of guide post 10, and the round platform shape structure on guide post 10 top makes guide post 10 can be more light insert in uide bushing 9.

Wherein, the thread groove has been seted up to one side of movable mould board 3, and the thread groove internal thread is installed rings 14, and rings 14 are used for hanging movable mould board 3, because movable mould board 3 is heavier, rings 14's existence conveniently hangs and removes movable mould board 3.

Wherein, the top fixedly connected with position circle 6 of cover half mounting panel 5, position circle 6 are used for the location, and when the cover half mounting panel 5 was installed at the installation station, position circle 6 can with the installation station on the constant head tank phase-match of reserving to reach the effect of location.

The utility model discloses a theory of operation and use flow:

1. the thickness uniformity of the product was measured.

2. The thickness of the product edge is measured.

3. Modifications were made to the following products.

a. The thickness of the edge of the product is less than 0.5 mm.

b. The width of the part with the thickness of 0.5mm on the edge of the product exceeds 1 mm.

c. Products with edge draft less than 40 degrees.

4. Starting at 0.1mm from the product edge, an inverted equilateral triangle entity of minimum height of 0.5mm is made on the non-visible face. And is connected with the product.

5. And (4) subtracting the modified product by using the main insert of the die to obtain the optimized die shape.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a get rid of sharp mould in injection moulding product edge which characterized in that: including movable mould board and fixed die plate, the top of movable mould board contacts with the bottom of fixed die plate, and one side that movable mould board and fixed die plate are close to each other is fixedly connected with movable mould insert and cover half insert respectively, the top fixedly connected with cover half mounting panel of fixed die plate, the bottom fixedly connected with supporting shoe of movable mould board, the bottom fixedly connected with movable mould mounting panel of supporting shoe, the sprue gate has been seted up on cover half mounting panel, fixed die plate and the cover half insert, cover half insert and movable mould insert phase-match, and the top of movable mould insert has the gradual change and adds the processing position of gluing.

2. The mold for removing sharp edges of an injection molding product according to claim 1, wherein: the mounting groove has been seted up on the top of movable mould inserted block, and fixed mounting has servo cylinder on the bottom inner wall of mounting groove, and servo cylinder's the vertical just fixedly connected with push pedal that makes progress of output shaft.

3. The mold for removing sharp edges of an injection molding product according to claim 1, wherein: the bottom fixedly connected with uide bushing of fixed die plate, the top fixedly connected with guide post of movable mould board, the top of guide post extends to in the uide bushing.

4. A mold for removing sharp edges from injection molded products according to claim 3, wherein: the top ends of the guide posts are of a circular truncated cone-shaped structure, and the space between the top ends of the guide posts is smaller than the space between the bottom ends of the guide posts.

5. The mold for removing sharp edges of an injection molding product according to claim 1, wherein: and a thread groove is formed in one side of the movable template, and a hanging ring is installed in the thread groove.

6. The mold for removing sharp edges of an injection molding product according to claim 1, wherein: and the top end of the fixed die mounting plate is fixedly connected with a positioning ring.