CN210758984U

CN210758984U - Injection molding precision forming die

Info

Publication number: CN210758984U
Application number: CN201921023432.9U
Authority: CN
Inventors: 唐爱东
Original assignee: Taizhou Hailing District Jinlong Rubber Plastic Co ltd
Current assignee: Taizhou Hailing District Jinlong Rubber Plastic Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-06-16
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to an injection molding piece precision forming die, including movable mould and cover half, be equipped with first type groove in the movable mould, be equipped with insert and side slide in the first type groove, be equipped with first inclined plane on the side slide outer wall, be equipped with inclined hole and screw rod on the side slide, be equipped with spacing hole and screw hole on the movable mould, first limiting plate between screw rod one end and the slider, the other end passes the screw and is equipped with the second limiting plate, be equipped with second type groove on the cover half, second type groove is connected with the injection port, be equipped with down tube and guide block on the second type groove, all be equipped with second inclined plane and notch on the guide block inner wall, second inclined plane and first inclined plane clearance fit, notch and screw rod; the utility model discloses a precision direction complex side sliding block structure so that improve side shaping pressure, rubber and plastic spare goods surface smoothness degree is better, and pore-free, and from the driven opening and shutting, and it is more convenient to leave the mould and clear up, can show reduce cost, improves the durable quality of product, adapts to continuous large-scale production.

Description

Injection molding precision forming die

Technical Field

The utility model relates to an injection molding precision forming die belongs to rubber and plastic production facility technical field.

Background

The forming mould is a key tool for influencing the injection quality of rubber and plastic parts, plastics are firstly heated and melted in a heating charging barrel of an injection molding machine, then enter a mould cavity through a nozzle and a pouring system of the mould under the pushing of a screw rod or a piston of the injection molding machine, and finally are hardened and formed in the cavity, the forming mould consisting of a movable mould and a fixed mould has the advantages of quick forming and convenient temperature adjustment, and when the rubber and plastic part product with flanging is formed, if only the shape of the mould cavity is adopted for shaping, the side pressure is not enough, the cohesion of the elastomer cannot be eliminated, when the rubber and plastic part product is formed and separated from the mould, extremely unstable shrinkage is often generated, the cleaning and demoulding are difficult, dirt forming moulds seriously influence the surface pore-forming, the smoothness rate is higher, the dirt of the moulds accumulated for a long time cannot exist, the replacement is time-consuming and labor-wasting, the cost is wasted, and the, it is difficult to realize continuous production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a precision molding mould of injection molding, adopt precision guide complex side sliding block structure so that improve side shaping pressure, rubber and plastic spare goods surface smoothness is better, and no hole, and from the driven opening and shutting, it is more convenient to leave mould and clearance, can show reduce cost, improves the durable quality of product, adapts to continuous large-scale production.

The utility model discloses a realize through following technical scheme:

a precision forming die for injection molding parts comprises a movable die and a fixed die, wherein a first groove is formed in the movable die, an insert and side sliding blocks are arranged in the first groove, a groove is formed in one side of the insert, the two side sliding blocks are symmetrically distributed on two sides of the insert, a first inclined plane is arranged on the outer wall of each side sliding block, inclined holes and screw rods are arranged on the side sliding blocks, two limiting holes and two screw holes are formed in the movable die, a first limiting plate is arranged between one end of each screw rod and the corresponding sliding block, the other end of each screw rod penetrates through each screw hole and is provided with a second limiting plate, and the screw holes are matched with the screw;

be equipped with second type groove on the cover half, second type groove is connected with the injection port, be equipped with down tube and guide block on the second type groove, the down tube has two, and the tip passes two inclined holes of surveying the slider respectively and arranges two spacing downtheholes in, all be equipped with second inclined plane and notch on the guide block inner wall, second inclined plane and first inclined plane clearance fit, the notch corresponds the setting with the screw rod.

Above-mentioned accurate forming die of injection molding, wherein, be equipped with first pivot and second pivot on inserting, first pivot and second pivot one end all are located the recess and the outside is equipped with the screw thread, and the other end passes the movable mould board and is equipped with first gear and second gear respectively, first gear one side is equipped with the engaged driving gear, and with the second gear between be equipped with the engaged driven gear, driving gear connection has the rotating electrical machines, be equipped with the motor cabinet between rotating electrical machines and the movable mould board, be equipped with the spacing groove on the recess, first pivot and second pivot all be equipped with the third limiting plate outward and between the spacing groove.

The above-mentioned injection molding precision molding mould, wherein, be equipped with the buffering crown plate between injection port and the cover half, the buffering crown plate cross-section is right trapezoid structure.

The utility model has the advantages that:

the utility model has the advantages of novel and compact structure, reasonable design, convenient use and assembly, when the movable mould and the fixed mould are combined, the distance between the two side sliding blocks and the insert is stably reduced under the matching of the inclined hole and the inclined column, the first inclined plane and the second inclined plane, the notch is stably buckled with the screw rod, the distance, the groove of the insert and the second groove connected with the injection port form a molding cavity, the screw rod and the screw rod are matched for relative displacement, the side molding pressure is effectively improved, the surface smoothness of the rubber and plastic part product is better, and no hole is formed; the mold opening is performed in a reverse direction, the distance between the mold opening and the insert is increased in a driven mode under the movable support of the screw, the mold is conveniently removed through the rotation of the threads of the first rotating shaft and the second rotating shaft, the cost can be obviously reduced, the durable quality of a product is improved, and the mold is suitable for continuous large-scale production.

Drawings

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

Fig. 2 is a side view of the moving mold of the present invention.

(in the figure, a movable die 1 and a fixed die 7, a first groove 3, an insert 4 and a side slide block 5, a groove 6, a first inclined surface 20, an inclined hole 21 and a screw 22, a limiting hole 23 and a screw hole 24, a first limiting plate 25, a second limiting plate 26, a second groove 19, an injection port 27, an inclined column 28 and a guide block 29, a second inclined surface 30 and a notch 31, a buffer ring plate 32, a first rotating shaft 8 and a second rotating shaft 9, a thread 10, a first gear 11 and a second gear 12, a driving gear 13, a driven gear 14, a rotating motor 15, a motor base 16, a limiting groove 17 and a third limiting plate 18).

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

Referring to fig. 1, the precision molding die for the injection molding part comprises a movable die 1 and a fixed die 7, wherein a first groove 3 is arranged in the movable die 1, an insert 4 and side sliding blocks 5 are arranged in the first groove 3, a groove 6 is arranged on one side of the insert 4, two side sliding blocks 5 are arranged and symmetrically distributed on two sides of the insert 4, a first inclined plane 20 is arranged on the outer wall of each side sliding block 5, an inclined hole 21 and a screw 22 are arranged on each side sliding block 5, a limiting hole 23 and a screw hole 24 are arranged on the movable die 1, two limiting holes 23 are arranged, a first limiting plate 25 is arranged between one end of each screw 22 and each sliding block, the other end of each screw passes through the screw hole 24, and a second limiting plate 26 is arranged, and the screw;

the fixed die 7 is provided with a second type groove 19, the second type groove 19 is connected with an injection port 27, the second type groove 19 is provided with two inclined columns 28 and two guide blocks 29, the end parts of the two inclined columns 28 respectively penetrate through the inclined holes 21 of the two slide measuring blocks and are arranged in the two limiting holes 23, the inner wall of each guide block 29 is provided with a second inclined surface 30 and a notch 31, the second inclined surfaces 30 are in clearance fit with the first inclined surfaces 20, and the notches 31 are arranged corresponding to the screw rods 22;

a buffer ring plate 32 is arranged between the injection port 27 and the fixed die 7, and the section of the buffer ring plate 32 is of a right-angled trapezoid structure;

referring to fig. 2, be equipped with first pivot 8 and second pivot 9 on the insert 4, first pivot 8 and second pivot 9 one end all are located recess 6 and the outside is equipped with screw thread 10, and the other end passes movable mould 1 board and is equipped with first gear 11 and second gear 12 respectively, first gear 11 one side is equipped with engaged driving gear 13, and with the second gear 12 between be equipped with engaged driven gear 14, driving gear 13 is connected with rotating electrical machines 15, be equipped with motor cabinet 16 between rotating electrical machines 15 and the movable mould 1 board, be equipped with spacing groove 17 on the recess 6, all be equipped with third limiting plate 18 between first pivot and the second pivot outward and the spacing groove 17.

The utility model discloses a working method does:

the movable die 1 and an injection molding machine moving plate are fixed, the fixed die 7 is fixed on one side of an injection mechanism, when the movable die 1 and the fixed die 7 are driven to be matched, an inclined hole 21 is matched with an inclined column 28, a first inclined surface 20 of a side sliding block 5 is matched with a second inclined surface 30 of a guide block 29, stable guiding is performed downwards, the distance between the side sliding block 5 and an insert 4 is gradually reduced, meanwhile, a screw rod 22 moves along with the side sliding block 5 and rotates with a screw hole 24 to generate relative displacement to support the side sliding block 5 until a notch 31 contains the screw rod 22, the end surface of the side sliding block 5 is closed with a second type groove 19, the inclined column 28 runs to the stroke end point in a limiting hole 23, a gap between the measuring sliding block and the insert 4, a groove 6 structure and a forming cavity formed by closing the second type groove 19 type groove are measured, a melting raw material is injected from a buffer plate to. Thereby improving the side molding pressure, and the rubber and plastic product has better surface smoothness and no pores;

when the mold is opened, the movable mold 1 moves reversely, so that the side sliding block 5 moves reversely in a driven manner, the screw rod 22 is matched with the screw hole 24, even if the distance between the movable mold 1 and the fixed mold 7 is increased to the inclined column 28 to be separated from the inclined hole 21, the mold supporting and positioning effect is achieved, so that the mold can be cleaned, the accurate continuous hole aligning can be realized immediately and continuously in the next injection molding process, when a rubber and plastic part product is demolded, the driving gear 13 is driven to rotate forwards by the rotating motor 15, the first gear 11 and the second gear 12 synchronously rotate backwards under the meshing of the driven gear 14, the thread 10 is matched with the formed screw hole 24 to unscrew the product for demolding, and the third limiting plate 18 plays a role in preventing raw material overflow in molding.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A precision forming die for injection molding parts comprises a movable die and a fixed die and is characterized in that a first groove is formed in the movable die, an insert and side sliding blocks are arranged in the first groove, a groove is formed in one side of the insert, the side sliding blocks are symmetrically distributed on two sides of the insert, a first inclined plane is arranged on the outer wall of each side sliding block, inclined holes and screw rods are arranged on the side sliding blocks, two limiting holes and two screw holes are formed in the movable die, a first limiting plate is arranged between one end of each screw rod and the corresponding sliding block, the other end of each screw rod penetrates through each screw hole and is provided with a second limiting plate, and the screw holes are matched with;

2. The precision forming die for the injection molding part according to claim 1, wherein the insert is provided with a first rotating shaft and a second rotating shaft, one end of the first rotating shaft and one end of the second rotating shaft are both positioned in the groove and are externally provided with threads, the other end of the first rotating shaft and the second rotating shaft penetrate through the movable die plate and are respectively provided with a first gear and a second gear, one side of the first gear is provided with a meshed driving gear, a meshed driven gear is arranged between the first gear and the second gear, the driving gear is connected with a rotating motor, a motor base is arranged between the rotating motor and the movable die plate, the groove is provided with a limiting groove, and third limiting plates are arranged between the outer portions of the first rotating shaft and the second rotating shaft and the.

3. The precision molding die for injection molding parts according to claim 1 or 2, wherein a buffering ring plate is arranged between the injection port and the fixed die, and the cross section of the buffering ring plate is in a right-angle trapezoidal structure.