CN209812970U

CN209812970U - Novel injection mold

Info

Publication number: CN209812970U
Application number: CN201920437871.8U
Authority: CN
Inventors: 陈超
Original assignee: Ningbo Lin Li Electric Co Ltd
Current assignee: Ningbo Lin Li Electric Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2019-12-20
Anticipated expiration: 2029-04-02

Abstract

The utility model discloses a novel injection mold, which comprises a frame, a fixed mold part, a movable mold part, an upper fixed plate, a reset system, an oil cylinder, an exhaust duct and a hydraulic system; the frame comprises a first forming plate, a second forming plate and a side plate; the movable mold part comprises an external forming plate, a first sliding block, a first insert and a cold runner system; the fixed die part comprises a second sliding block, a second insert, a hot runner system and a supporting plate; the frame supports other components, the movable mould part is arranged at the bottom of the frame and can move up and down through a hydraulic system, the upper fixing plate is fixed on the first molding plate, and the movable mould part and the fixed mould part are enclosed to form a cavity of a molded product; the reset system controls the movable mould part to reset, the oil cylinder drives the hydraulic system, and the exhaust groove exhausts gas in the mould. The utility model relates to a rationally, convenient to use, the product percent of pass is high.

Description

Novel injection mold

Technical Field

The utility model relates to an injection moulding technical field, more specifically the saying so, it relates to a novel injection mold.

Background

An injection mold is a tool for producing rubber products and also for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used for mass production of parts with complex shapes; specifically, the material melted by heating is injected into a die cavity from high pressure, and a molded product is obtained after cooling and solidification. In production, in order to form qualified products, continuous mold removal, mold repair and mold installation are often needed, each time of disassembly and assembly is a complicated procedure, the whole movable mold or fixed mold part needs to be repaired after being disassembled from the injection molding machine, and after the mold repair is completed, the movable mold or fixed mold part is installed in the injection molding machine again through hoisting equipment, so that time and energy are consumed. The traditional two-plate mold and three-plate mold are inconvenient to use, the size precision of the product is not high, and the requirement of the injection mold which is gradually complicated to produce cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, its reasonable in design, convenient to use, the product percent of pass is high.

The technical scheme of the utility model as follows:

a novel injection mold comprises a frame, a fixed mold part, a movable mold part, an upper fixed plate, a reset system, an oil cylinder, an exhaust groove and a hydraulic system; the frame comprises a first forming plate, a second forming plate and a side plate; the movable mold part comprises an external forming plate, a first sliding block, a first insert and a cold runner system; the fixed die part comprises a second sliding block, a second insert, a hot runner system and a supporting plate; the frame supports other components, the movable mould part is arranged at the bottom of the frame and can move up and down through a hydraulic system, the upper fixing plate is fixed on the first molding plate, and the movable mould part and the fixed mould part are enclosed to form a cavity of a molded product; the reset system controls the movable mould part to reset, the oil cylinder drives the hydraulic system, and the exhaust groove exhausts gas in the mould.

Further, the first forming plate is a rectangular plate and is positioned at the bottom; the left side and the right side of the first molding plate are respectively provided with three first round holes, the center of the first molding plate is provided with a second round hole, and the diameter of the second round hole is larger than that of the first round hole; the rear part of each first round hole is provided with a bolt hole, four bolt holes are arranged around the second round hole, and the four bolt holes are uniformly arranged; the second forming plate is positioned at the topmost end and is rectangular, and a third round hole is formed in the center of the second forming plate; the second forming plate is provided with four fourth round holes with intervals of 90 degrees by taking the third round hole as a circle center; the diameter of the third round hole is larger than that of the fourth round hole; the side plates comprise a left side plate and a right side plate; the left side plate and the right side plate are both rectangular, and one side of the long edge is fixed on the first molding plate.

Furthermore, the whole external forming plate is concave, the middle of the external forming plate is sunken, and two sides of the external forming plate are convex; the convex parts at the two sides are arranged above the side plates through bolts; the middle sunken part is provided with dense round holes; the outer side of the outer forming plate is provided with a guide rail; the first sliding block is arranged on the sliding rail; the front side, the rear side and the right side of the outer forming plate are respectively provided with a hole of a cold runner system, and the left side of the outer forming plate is provided with a hole of the cold runner system.

Furthermore, the first insert is rectangular, an S-shaped flow channel is arranged in the middle of the first insert, and two rectangular grooves are respectively arranged on two sides of the S-shaped flow channel; the front end, the rear end and the right end of the first insert are respectively provided with two open holes of a cold runner system; the first insert is in contact with the lower surface of the support plate.

Further, the supporting plate is rectangular, the middle of the lower surface of the supporting plate is hollowed, and bolt holes are formed in the hollowed part; the upper surface of the supporting plate is provided with dense round holes; fixing rods are arranged at two ends of the second insert, and bolt connecting holes are formed in the fixing rods; the second insert is hollow, and a hot runner system is arranged and comprises a heat flow pipeline; the second sliding block is arranged on the sliding rail in the supporting plate; the second insert is rectangular, an S-shaped flow channel is arranged in the middle of the lower surface, two rectangular grooves are respectively arranged on two sides of the S-shaped flow channel, and the S-shaped flow channel corresponds to the S-shaped flow channel of the first insert in position; the front end, the rear end and the right end of the second insert are respectively provided with two openings of heat flow pipelines.

Furthermore, the upper fixing plate is rectangular, a circular truncated cone-shaped hole is formed in the center of the upper fixing plate, and the size of the circular truncated cone-shaped hole is matched with the diameter of a circular hole in the center of the second forming plate; four connecting holes with 90-degree intervals are arranged around the circular truncated cone-shaped hole and are used for being connected with the fixed die part.

Furthermore, the fixed die part, the movable die part, the frame, the upper fixing plate, the reset system, the oil cylinder and the hydraulic system are mutually independent and are all detachable structures; the fixed mould part is connected with the upper fixing plate.

Further, the device also comprises a backing plate and a fixing plate; the fixing plate is rectangular and is arranged above the first forming plate through a bolt; the middle part of the fixed plate is provided with four round holes, and bolt holes are arranged at four corners; the backing plate is positioned above the fixed plate and is connected with the fixed plate through a bolt; the base plate is rectangular, bolt holes are formed in four corners of the base plate, three fifth round holes are formed in the front side and the rear side of the base plate respectively, and four sixth round holes are formed in the middle of the base plate; the diameter of the sixth round hole is larger than that of the fifth round hole, the position of the sixth round hole is the same as that of the four round holes in the middle of the fixing plate, and the sixth round hole is adaptive to the four round holes in the middle of the fixing plate in size.

Further, the hydraulic system comprises four lifting columns; four lifting columns are respectively arranged in four round holes in the middle parts of the backing plate and the fixed plate, and the upper ends of the lifting columns are connected with the movable mould part.

Furthermore, the device also comprises an auxiliary mechanism, wherein the auxiliary mechanism comprises a side fixing rod and an insert connecting piece; the side fixing rod is rectangular, the upper end and the lower end of the side fixing rod are respectively connected with the second insert and the first insert through bolt holes; the lower end of the insert connecting piece is connected with the external forming plate through a bolt, and the back surface of the insert connecting piece is connected with the first insert and the second insert.

Compared with the prior art, the utility model the advantage lies in:

1. the utility model discloses rational in infrastructure, it is convenient to make, easily realizes scale production, convenient to popularize and use.

2. The utility model discloses movable mould portion, an upper fixed plate, cover half portion, frame adopt detachable construction, combine reset system and hydro-cylinder, and the adjustment is maintained to the convenient maintenance of modular design.

3. The utility model is provided with the insert connecting piece, thereby improving the overall strength of the die and ensuring the stability of die sinking; the insert is easy to disassemble and process, and the final product is ensured to be accurate in size.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the attached drawings

FIG. 1 is a schematic view of the overall structure of a novel injection mold of the present invention;

FIG. 2 is a schematic view of a second molding plate of the novel injection mold of the present invention;

FIG. 3 is a schematic view of a structure of an upper fixing plate of the novel injection mold of the present invention;

FIG. 4 is a schematic view of a novel injection mold supporting plate of the present invention;

FIG. 5 is a schematic view of an external molding plate of the novel injection mold of the present invention;

FIG. 6 is a sectional view of the novel injection mold of the present invention;

fig. 7 is a schematic diagram of a first insert, a second insert and an insert connecting piece of the novel injection mold of the present invention;

the figure is marked with: the structure comprises a first molding plate 1, a second molding plate 2, an upper fixing plate 3, a supporting plate 4, an outer molding plate 5, a side plate 6, a fixing plate 7, a backing plate 8, a first insert 9, a second insert 10 and an insert connecting piece 11.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 7, the novel injection mold comprises a frame, a fixed mold part, a movable mold part, an upper fixed plate 3, a reset system, an oil cylinder, an exhaust groove, a hydraulic system and an attachment mechanism. The frame comprises a first profiled sheet 1, a second profiled sheet 2, side panels 6. The movable mould part comprises an outer forming plate 5, a first slide block, a first insert 9 and a cold runner system. The fixed mould part comprises a second slide block, a second insert 10, a hot runner system, a supporting plate 4 and a stand column. The framework supports other components, the movable mould part is arranged at the bottom of the framework, the movable mould part can move up and down through a hydraulic system, the upper fixing plate 3 is fixed on the first molding plate 1, the upper end surface of the movable mould part is matched with the lower end surface of the fixed mould part in shape, and the movable mould part and the fixed mould part enclose to form a cavity of a molded product; the reset system controls the movable mould part to reset, the oil cylinder drives the hydraulic system, and the exhaust groove exhausts gas in the mould. The fixed die part, the movable die part, the frame, the upper fixing plate 3, the reset system, the oil cylinder and the hydraulic system are mutually independent and are all detachable structures; the design is convenient for cleaning and maintenance, and simultaneously, the shape of the die can be adjusted according to the requirement to produce the required model. The fixed mold part is connected with an upper fixing plate 3, and the upper fixing plate 3 is connected with a second molding plate 2. The reset system comprises four springs; the four springs are respectively arranged at four corners of the backing plate 8 and between the left side plate 6 and the right side plate 6; the upper end of the spring is propped against the lower surface of the movable mold part. The hydraulic system comprises four lifting columns; four lifting columns are respectively arranged in four round holes in the middle parts of the backing plate 8 and the fixed plate 7, and the upper ends of the four lifting columns are connected with the movable mould part. The spring is matched with the lifting column and moves up and down under the driving of the oil cylinder, and the hydraulic system is matched with the spring, so that the smooth movement of the movable mould part can be ensured, the accurate control is convenient, and the accurate size of the final product is ensured.

Preferably, the first forming plate 1 is a rectangular plate, and is located at the bottom to play a supporting role. Three first round holes are respectively arranged at the left side and the right side of the first molding plate 1, a second round hole is arranged at the center, and the diameter of the second round hole is larger than that of the first round hole. A bolt hole is formed in the rear portion of each first round hole, four bolt holes are formed in the periphery of the second round hole, and the four bolt holes are evenly distributed and used for connecting other components. The second forming plate 2 is positioned at the topmost end and is rectangular, and a third round hole is formed in the center; the second forming plate 2 is provided with four fourth round holes with intervals of 90 degrees by taking the third round hole as the center of a circle; the diameter of the third round hole is larger than that of the fourth round hole. The side plate 6 comprises a left side plate and a right side plate; the left side plate and the right side plate are both rectangular, and one side of the long edge is fixed on the first molding plate 1. The side plates 6 reinforce the overall strength of the mould while protecting the other components inside.

Preferably, the outer forming plate 5 is concave in shape as a whole, depressed in the middle, and convex on both sides. The insert can be seen in the depression, and the design helps an operator to observe the installation condition of the insert. The convex parts at the two sides are arranged above the side plate 6 through bolts; the middle sunken part is provided with dense round holes. The outer side of the outer forming plate 5 is provided with a guide rail; the first sliding block is arranged on the sliding rail and slides on the guide rail. The front, rear and right sides of the outer profiled sheet 5 are each provided with a cold runner system opening, and the left side is provided with a cold runner system opening. The holes are more reasonable, and the flowing speed of the hot melt material in work is reasonable. The first insert 9 is rectangular, an S-shaped flow channel is arranged in the middle of the first insert, and two rectangular grooves are respectively arranged on two sides of the S-shaped flow channel; the front end, the rear end and the right end of the first insert 9 are respectively provided with two cold runner system holes; the first insert 9 is in contact with the lower surface of the support plate 4. The S-shaped flow channel can help heat dissipation, and die deformation caused by overhigh temperature in the working process is avoided.

Preferably, the supporting plate 4 is rectangular, the middle of the lower surface of the supporting plate is hollowed, and bolt holes are formed in the hollowed part; the upper surface of the supporting plate 4 is provided with dense round holes. Two ends of the second insert 10 are provided with fixing rods, and the fixing rods are provided with bolt connecting holes; the second insert 10 is hollow, and is provided with a hot runner system, and the hot runner system comprises a heat flow pipeline; the second slider is arranged on a slide rail inside the support plate 4. The second insert 10 is rectangular, an S-shaped flow channel is arranged in the middle of the lower surface, two rectangular grooves are respectively arranged on two sides of the S-shaped flow channel, and the S-shaped flow channel corresponds to the S-shaped flow channel of the first insert 9 in position; the front end, the rear end and the right end of the second insert 10 are respectively provided with two openings of heat flow pipelines. Such an opening design ensures that the hot melt material is more smoothly injected.

Preferably, the upper fixing plate 3 is rectangular, and a circular truncated cone-shaped hole is formed in the center of the upper fixing plate, and the size of the circular truncated cone-shaped hole is matched with the diameter of the circular hole in the center of the second forming plate 2. Four connecting holes with 90-degree intervals are arranged around the circular truncated cone-shaped hole and are used for being connected with the fixed die part. The upper fixing plate 73 can ensure that the structure of the whole injection mold is more stable, and can reduce the temperature brought by hot melt materials.

Preferably, the device also comprises a backing plate 8 and a fixing plate 7. The fixing plate 7 is rectangular and is arranged above the first forming plate 1 through bolts; the middle part of the fixed plate 7 is provided with four round holes, and four corners are provided with bolt holes; the backing plate 8 is positioned above the fixing plate 7 and is connected with the fixing plate 7 through bolts. The backing plate 8 is rectangular, bolt holes are formed in four corners of the backing plate, three fifth round holes are formed in the front side and the rear side of the backing plate respectively, and four sixth round holes are formed in the middle of the backing plate 8; the diameter of the sixth round hole is larger than that of the fifth round hole, the position of the sixth round hole is the same as that of the four round holes in the middle of the fixing plate 7, and the sixth round hole is adaptive to the four round holes in size. The fixed plate 7 is combined with the backing plate 8 to ensure the stability of die sinking.

Preferably, the attachment mechanism comprises a side fixing rod, an insert connecting piece 11 and an ejector pin system. The side fixing rod is rectangular, the upper end and the lower end of the side fixing rod are respectively connected with the second insert 10 and the first insert 9 through bolt holes. The lower end of the insert connecting piece 11 is connected with the outer forming plate 5 through a bolt, and the back surface of the insert connecting piece is connected with the first insert 9 and the second insert 10. The insert connecting piece 11 can enhance the connecting strength of the first insert 9 and the second insert 10, and avoids cracking in use. The ejector pin system comprises a plurality of ejector pins which are arranged in the dense round holes of the fixed die part and the movable die part.

Preferably, a cooling water channel is further arranged in the fixed mold part and the movable mold part, cooling liquid is introduced into the cooling water channel, and the cooling liquid comprises but is not limited to water, ammonia or Freon and plays a role in cooling in the working process of the mold. Correspondingly, a liquid storage tank is also arranged in the injection mold and used for storing cooling liquid.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a novel injection mold which characterized in that: the device comprises a frame, a fixed die part, a movable die part, an upper fixed plate, a reset system, an oil cylinder, an exhaust groove and a hydraulic system; the frame comprises a first forming plate, a second forming plate and a side plate; the movable mold part comprises an external forming plate, a first sliding block, a first insert and a cold runner system; the fixed die part comprises a second sliding block, a second insert, a hot runner system and a supporting plate; the frame supports other components, the movable mould part is arranged at the bottom of the frame and can move up and down through a hydraulic system, the upper fixing plate is fixed on the first molding plate, and the movable mould part and the fixed mould part are enclosed to form a cavity of a molded product; the reset system controls the movable mould part to reset, the oil cylinder drives the hydraulic system, and the exhaust groove exhausts gas in the mould.

2. The novel injection mold of claim 1, wherein: the first forming plate is a rectangular plate and is positioned at the bottom; the left side and the right side of the first molding plate are respectively provided with three first round holes, the center of the first molding plate is provided with a second round hole, and the diameter of the second round hole is larger than that of the first round hole; the rear part of each first round hole is provided with a bolt hole, four bolt holes are arranged around the second round hole, and the four bolt holes are uniformly arranged; the second forming plate is positioned at the topmost end and is rectangular, and a third round hole is formed in the center of the second forming plate; the second forming plate is provided with four fourth round holes with intervals of 90 degrees by taking the third round hole as a circle center; the diameter of the third round hole is larger than that of the fourth round hole; the side plates comprise a left side plate and a right side plate; the left side plate and the right side plate are both rectangular, and one side of the long edge is fixed on the first molding plate.

3. The novel injection mold of claim 1, wherein: the outer forming plate is integrally concave, the middle of the outer forming plate is sunken, and two sides of the outer forming plate are convex; the convex parts at the two sides are arranged above the side plates through bolts; dense round holes are arranged at the middle sunken part; the outer side of the outer forming plate is provided with a guide rail; the first sliding block is arranged on the sliding rail; the front side, the rear side and the right side of the outer forming plate are respectively provided with a hole of a cold runner system, and the left side of the outer forming plate is provided with a hole of the cold runner system.

4. The novel injection mold of claim 1, wherein: the first insert is rectangular, an S-shaped flow channel is arranged in the middle of the first insert, and two rectangular grooves are formed in two sides of the S-shaped flow channel respectively; the front end, the rear end and the right end of the first insert are respectively provided with two open holes of a cold runner system; the first insert is in contact with the lower surface of the support plate.

5. The novel injection mold of claim 1, wherein: the supporting plate is rectangular, the middle part of the lower surface of the supporting plate is hollowed, and bolt holes are formed in the hollowed part; the upper surface of the supporting plate is provided with dense round holes; fixing rods are arranged at two ends of the second insert, and bolt connecting holes are formed in the fixing rods; the second insert is hollow, and a hot runner system is arranged and comprises a heat flow pipeline; the second sliding block is arranged on the sliding rail in the supporting plate; the second insert is rectangular, an S-shaped flow channel is arranged in the middle of the lower surface, two rectangular grooves are respectively arranged on two sides of the S-shaped flow channel, and the S-shaped flow channel corresponds to the S-shaped flow channel of the first insert in position; the front end, the rear end and the right end of the second insert are respectively provided with two openings of heat flow pipelines.

6. The novel injection mold of claim 1, wherein: the upper fixing plate is rectangular, a circular truncated cone-shaped hole is formed in the center of the upper fixing plate, and the size of the circular truncated cone-shaped hole is matched with the diameter of a circular hole in the center of the second molding plate; four connecting holes with 90-degree intervals are arranged around the circular truncated cone-shaped hole and are used for being connected with the fixed die part.

7. The novel injection mold of claim 1, wherein: the fixed die part, the movable die part, the frame, the upper fixing plate, the reset system, the oil cylinder and the hydraulic system are mutually independent and are all detachable structures; the fixed mould part is connected with the upper fixing plate.

8. The novel injection mold of claim 1, wherein: the device also comprises a backing plate and a fixing plate; the fixing plate is rectangular and is arranged above the first forming plate through a bolt; the middle part of the fixed plate is provided with four round holes, and bolt holes are arranged at four corners; the backing plate is positioned above the fixed plate and is connected with the fixed plate through a bolt; the base plate is rectangular, bolt holes are formed in four corners of the base plate, three fifth round holes are formed in the front side and the rear side of the base plate respectively, and four sixth round holes are formed in the middle of the base plate; the diameter of the sixth round hole is larger than that of the fifth round hole, the position of the sixth round hole is the same as that of the four round holes in the middle of the fixing plate, and the sixth round hole is adaptive to the four round holes in the middle of the fixing plate in size.

9. The novel injection mold of claim 1, wherein: the hydraulic system comprises four lifting columns; four lifting columns are respectively arranged in four round holes in the middle parts of the backing plate and the fixed plate, and the upper ends of the lifting columns are connected with the movable mould part.

10. The novel injection mold of claim 1, wherein: the auxiliary mechanism comprises a side fixing rod and an insert connecting piece; the side fixing rod is rectangular, the upper end and the lower end of the side fixing rod are respectively connected with the second insert and the first insert through bolt holes; the lower end of the insert connecting piece is connected with the external forming plate through a bolt, and the back surface of the insert connecting piece is connected with the first insert and the second insert.