CN209812967U

CN209812967U - Injection mould

Info

Publication number: CN209812967U
Application number: CN201920437276.4U
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 an injection mold, which comprises a frame, a fixed mold part, a movable mold part, a reset system, an oil cylinder, an exhaust groove and a hydraulic system; the frame comprises a locking module, a first molding plate, a second molding 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 framework supports other components, the movable mould part is fixed at the bottom of the framework and can move up and down through a hydraulic system, 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 formed 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

Injection mould

Technical Field

The utility model relates to an injection moulding technical field, more specifically the saying so, it relates to 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 have poor mold opening stability and cannot meet the requirement of the injection mold which is gradually complicated to produce.

Disclosure of Invention

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:

the injection mold comprises a frame, a fixed mold part, a movable mold part, a reset system, an oil cylinder, an exhaust groove and a hydraulic system; the frame comprises a locking module, a first molding plate, a second molding 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 framework supports other components, the movable mould part is arranged at the bottom of the framework and can move up and down through a hydraulic system, 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 formed 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; a circular hole is formed in the center of the first molding plate, and connecting holes are formed along the edges of four edges; the second molding plate is positioned at the topmost end and is rectangular, a circular pit is arranged in the middle of the second molding plate, and a circular hole is formed in the center of the pit; the second molding plate is provided with four bolt holes at intervals of 90 degrees by taking the center of the concave pit as a circle center; 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 outer forming plate is a rectangular plate and is arranged above the side plate through a bolt; the middle part of the external forming plate is hollowed, the hollowed part is rectangular, dense round holes are arranged at the hollowed part, and the size, the number and the formed patterns of the dense round holes are arranged according to the requirement; rectangular clamping grooves are formed in the left side, the front side and the rear side of the outer forming plate; two stepped round holes are formed in the left side face of the movable die part and the lower part of the rectangular clamping groove; and a guide rail is arranged outside the external forming plate.

Furthermore, the first insert is rectangular, eight rectangular holes are formed in the middle of the first insert, and the eight rectangular holes are arranged in two rows of four in each row; round holes are formed in four corners of the first insert; the first sliding block is arranged on the guide rail of the external forming plate and moves along the guide rail; a cold runner system is arranged in the first insert and comprises a cold runner pipeline; the front side of the first insert is provided with a cold flow pipeline port, and the right side and the rear side of the first insert are respectively provided with two cold flow pipeline ports.

Furthermore, the size of the supporting plate is the same as that of the external forming plate, and the middle part of the lower surface of the supporting plate is hollowed; the hollow part is rectangular, and the size and the position of the hollow part are the same as the size of the hollow part on the upper surface of the external forming plate; the second insert is rectangular and is embedded in the hollow part of the lower surface of the supporting plate; the size and the dimension of the second insert are the same as those of the first insert, and the first insert and the second insert are completely attached after the installation is finished; 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 front side, the left side and the rear side of the second insert are respectively provided with two heat flow pipeline ports, and the right side is provided with three heat flow pipeline ports; a rectangular groove is formed in the left side, the front part and the rear part of the supporting plate respectively and corresponds to the groove of the outer forming plate in position; two stepped round holes are arranged above the rectangular groove at the left side of the supporting plate.

Furthermore, the fixed mould part, the movable mould part, the frame, 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 second forming 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 fixing plate is provided with four round holes along the length direction; the backing plate is positioned above the fixed plate and is connected with the fixed plate through a bolt; the base plate is rectangular, four corners of the base plate are provided with first round holes, and four second round holes are formed along the length direction; the backing plate surrounds two in the middle of the second round hole, and is provided with dense stepped round holes, and the diameter of the round hole on the upper surface side of the backing plate is smaller than that of the round hole on the lower surface of the backing plate.

Further, the lock also comprises a lock module; the lock modules are provided with three groups, each group comprises an upper lock module and a lower lock module; the upper locking module is fixed in the rectangular groove on the side surface of the fixed mould part through a bolt, and the lower locking module is fixed in the rectangular groove on the side surface of the movable mould part through a bolt; the upper locking module is in a concave shape, the lower locking module is in a convex shape, and the sizes of the upper locking module and the lower locking module are matched.

Further, the reset system comprises four springs; the four springs are respectively arranged at four corners of the base plate and between the two side plates; the upper end of the spring is propped against the lower surface of the movable mold part.

Furthermore, the device also comprises an attachment mechanism; the accessory mechanism comprises a thimble system and a fixed ring; the thimble system comprises a plurality of thimbles with different sizes, and the thimbles penetrate through the circular holes on the movable mould part and the fixed mould part; the fixed circular ring is arranged on the upper surface of the second forming plate.

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 and 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 discloses set up locking module and many draw-in grooves, can guarantee the stability of die sinking.

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 whole structure of the injection mold of the present invention;

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

FIG. 3 is a schematic view of the injection mold supporting plate of the present invention;

FIG. 4 is a schematic view of the external molding plate of the injection mold of the present invention;

FIG. 5 is a sectional view of the injection mold of the present invention;

FIG. 6 is a schematic diagram of the distribution positions of the injection mold springs and the ejector pin system of the present invention;

the figure is marked with: the device comprises a first molding plate 1, a second molding plate 2, a supporting plate 3, an outer molding plate 4, a side plate 5, a spring 6, a backing plate 7, a fixing plate 8, a locking module 9, a second insert 10 and a first insert 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 6, the injection mold comprises a frame, a fixed mold part, a movable mold part, a reset system, an oil cylinder, an exhaust groove, a hydraulic system and an auxiliary mechanism. The frame comprises a locking module 9, a first profiled sheet 1, a second profiled sheet 2, a side plate 5. The movable mould part comprises an outer forming plate 4, a first slide block, a first insert 11 and a cold runner system. The fixed mould part comprises a second slide block, a second insert 10, a hot runner system and a supporting plate 3. The framework supports other components, the movable mould part is arranged at the bottom of the framework and can move up and down through a hydraulic system, 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 formed product; a first insert 11, a second insert 10, a first slide block and a second slide block are placed in the cavity, and an auxiliary mechanism is combined for injection molding. 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 reset system, the oil cylinder and the hydraulic system are mutually independent and are 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 mould part is connected with a second moulding board 2, and the second moulding board 2 is fixed on a fixing device in a production workshop. The return system comprises four springs 6; the four springs 6 are respectively arranged at four corners of the base plate 7 and between the two side plates 5; the upper end of the spring 6 is propped against the lower surface of the movable mold part. The hydraulic system comprises a lifting column arranged above the pad 7. The spring 6 is matched with a hydraulic system, 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. The first contoured plate 1 is used to support the entire device. The center of the first molding plate 1 is provided with a round hole, and the edges of four edges are provided with connecting holes. The second molding plate 2 is positioned at the topmost end and is rectangular, a circular pit is arranged in the middle of the second molding plate, and a circular hole is formed in the center of the pit; the round hole is matched with a fixed ring in the auxiliary mechanism, so that better assembly strength is obtained, and the die sinking stability is ensured. The second molding plate 2 is provided with four bolt holes at intervals of 90 degrees by taking the center of the pit as the center of a circle, and is used for being connected with the fixed mold part. The side plate 5 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 5 reinforce the overall strength of the mould while protecting the other components inside.

Preferably, the outer forming plate 4 is a rectangular plate and is disposed above the side plate 5 by bolts. The outer forming plate 4 cooperates with the backing plate 3 to assist in the formation of the mould. The middle of the external forming plate 4 is hollowed, the hollowed shape is rectangular, dense round holes are formed in the hollowed part, and the size and the number of the dense round holes and the formed patterns are arranged as required, so that the external forming plate is suitable for different mold production requirements, the universality is improved, and the production cost is reduced. Rectangular clamping grooves are formed in the left side, the front side and the rear side of the outer forming plate 4; two stepped round holes are formed in the left side face of the outer forming plate 4 and the lower portion of the rectangular clamping groove; the outer side of the outer forming plate 4 is provided with a guide rail; a cold runner system is arranged inside the first insert 11, and comprises a cold runner. The front side of the first insert 11 is provided with a cold flow pipeline port, and the right side and the rear side are respectively provided with two cold flow pipeline ports. The cold flow pipeline is used for conveying cooling water, and the influence on a finished product due to too high temperature in work is avoided. The first insert 11 is rectangular, eight rectangular holes are formed in the middle of the first insert, and the eight rectangular holes are arranged in two rows of four in each row; round holes are formed in four corners of the first insert 11; the first slide is arranged on a guide rail of the outer profiled sheet 4 and moves along the guide rail.

Preferably, the size of the supporting plate 3 is the same as that of the external forming plate 4, and the middle part of the lower surface of the supporting plate 3 is hollowed; the hollow part is rectangular, and the size and the position of the hollow part are the same as the size of the hollow part on the upper surface of the external forming plate 4; the second insert 10 is rectangular and is embedded in the hollow part of the lower surface of the supporting plate 3; the size and the dimension of the second insert 10 are the same as those of the first insert 11, and the first insert 11 and the second insert 10 are completely attached after the installation is finished; 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 slide block is arranged on a slide rail inside the supporting plate 3; the front side, the left side and the rear side of the second insert 10 are respectively provided with two heat flow pipeline ports, and the right side is provided with three heat flow pipeline ports; a rectangular groove is formed in the left side, the front part and the rear part of the supporting plate 3 respectively and corresponds to the groove of the outer forming plate 4; two stepped round holes are arranged above the rectangular groove on the left side of the supporting plate 3. The fixed mold part is matched with the movable mold part, and the internal structure of the fixed mold part is symmetrically arranged, so that the controllability of the product forming process is ensured. The hot flow conduit is used to transport the stream.

Preferably, the device also comprises a backing plate 7 and a fixing plate 8. The fixing plate 8 is rectangular and is arranged above the first forming plate 1 through bolts. The fixing plate 8 is provided with four round holes along the length direction, and is conveniently connected with the backing plate 7. The backing plate 7 is positioned above the fixed plate 8 and is connected with the fixed plate 8 through bolts; the backing plate 7 is rectangular, four corners of the backing plate are provided with first round holes, and four second round holes are formed along the length direction; the backing plate 7 surrounds two middle second round holes and is provided with dense stepped round holes, and the diameter of the round hole on the upper surface side of the backing plate 7 is smaller than that of the round hole on the lower surface of the backing plate 7. The fixed plate supports a cushion plate 7 and a spring 6, and the cushion plate 7 can play a role in buffering and shock absorption.

Preferably, a lock module 9 is also included. The lock modules 9 are provided with three groups, each group comprises an upper lock module 9 and a lower lock module 9; the upper locking module 9 is fixed in the rectangular groove on the side surface of the fixed mould part through a bolt, and the lower locking module 9 is fixed in the rectangular groove on the side surface of the movable mould part through a bolt; the upper locking module 9 is concave, the lower locking module 9 is convex, and the sizes of the upper locking module and the lower locking module are matched. The locking module 9 can strengthen the connection strength of the movable mould part and the fixed mould part, and prevent the disconnection of the movable mould part and the fixed mould part during working from affecting products.

Preferably, the attachment mechanism comprises a thimble system, a fixed ring; the thimble system comprises a plurality of thimbles with different sizes, and the thimbles penetrate through the circular holes on the movable mould part and the fixed mould part; the fixing ring is arranged on the upper surface of the second molding plate 2. The ejector pin system is matched with the round hole in the fixed die part of the movable die part, so that the position accuracy of the produced product such as hole opening is ensured.

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. Injection mold, its characterized in that: the device comprises a frame, a fixed die part, a movable die part, a reset system, an oil cylinder, an exhaust groove and a hydraulic system; the frame comprises a locking module, a first molding plate, a second molding 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 framework supports other components, the movable mould part is arranged at the bottom of the framework and can move up and down through a hydraulic system, 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 formed 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 injection mold of claim 1, wherein: the first forming plate is a rectangular plate and is positioned at the bottom; a circular hole is formed in the center of the first molding plate, and connecting holes are formed along the edges of four edges; the second molding plate is positioned at the topmost end and is rectangular, a circular pit is arranged in the middle of the second molding plate, and a circular hole is formed in the center of the pit; the second molding plate is provided with four bolt holes at intervals of 90 degrees by taking the center of the concave pit as a circle center; 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 injection mold of claim 1, wherein: the outer forming plate is a rectangular plate and is arranged above the side plate through a bolt; the middle part of the external forming plate is hollowed, the hollowed part is rectangular, dense round holes are arranged at the hollowed part, and the size, the number and the formed patterns of the dense round holes are arranged according to the requirement; rectangular clamping grooves are formed in the left side, the front side and the rear side of the outer forming plate; two stepped round holes are formed in the left side face of the outer forming plate and the lower portion of the rectangular clamping groove; and a guide rail is arranged outside the external forming plate.

4. The injection mold of claim 1, wherein: the first insert is rectangular, eight rectangular holes are formed in the middle of the first insert, and the eight rectangular holes are arranged in two rows of four in each row; round holes are formed in four corners of the first insert; the first sliding block is arranged on the guide rail of the external forming plate and moves along the guide rail; a cold runner system is arranged in the first insert and comprises a cold runner pipeline; the front side of the first insert is provided with a cold flow pipeline port, and the right side and the rear side of the first insert are respectively provided with two cold flow pipeline ports.

5. The injection mold of claim 1, wherein: the size of the supporting plate is the same as that of the external forming plate, and the middle part of the lower surface of the supporting plate is hollowed; the hollow part is rectangular, and the size and the position of the hollow part are the same as the size of the hollow part on the upper surface of the external forming plate; the second insert is rectangular and is embedded in the hollow part of the lower surface of the supporting plate; the size and the dimension of the second insert are the same as those of the first insert, and the first insert and the second insert are completely attached after the installation is finished; 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 front side, the left side and the rear side of the second insert are respectively provided with two heat flow pipeline ports, and the right side is provided with three heat flow pipeline ports; a rectangular groove is formed in the left side, the front part and the rear part of the supporting plate respectively and corresponds to the groove of the outer forming plate in position; two stepped round holes are arranged above the rectangular groove at the left side of the supporting plate.

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

7. The 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 fixing plate is provided with four round holes along the length direction; the backing plate is positioned above the fixed plate and is connected with the fixed plate through a bolt; the base plate is rectangular, four corners of the base plate are provided with first round holes, and four second round holes are formed along the length direction; the backing plate surrounds two in the middle of the second round hole, and is provided with dense stepped round holes, and the diameter of the round hole on the upper surface side of the backing plate is smaller than that of the round hole on the lower surface of the backing plate.

8. The injection mold of claim 1, wherein: the lock also comprises a lock module; the lock modules are provided with three groups, each group comprises an upper lock module and a lower lock module; the upper locking module is fixed in the rectangular groove on the side surface of the fixed mould part through a bolt, and the lower locking module is fixed in the rectangular groove on the side surface of the movable mould part through a bolt; the upper locking module is in a concave shape, the lower locking module is in a convex shape, and the sizes of the upper locking module and the lower locking module are matched.

9. The injection mold of claim 1, wherein: the reset system comprises four springs; the four springs are respectively arranged at four corners of the base plate and between the two side plates; the upper end of the spring is propped against the lower surface of the movable mold part.

10. The injection mold of claim 1, wherein: the device also comprises an attachment mechanism; the accessory mechanism comprises a thimble system and a fixed ring; the thimble system comprises a plurality of thimbles with different sizes, and the thimbles penetrate through the circular holes on the movable mould part and the fixed mould part; the fixed circular ring is arranged on the upper surface of the second forming plate.