CN215396557U

CN215396557U - Injection mold with movable insert

Info

Publication number: CN215396557U
Application number: CN202121415838.9U
Authority: CN
Inventors: 徐多艺
Original assignee: Guangzhou Liyouxiang Mould Plastic Co ltd
Current assignee: Guangzhou Liyouxiang Mould Plastic Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-04
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses an injection mold with a movable insert, which comprises a base, wherein guide seats are fixedly connected to two sides of the top of the base, lifting grooves are formed in the surfaces of the guide seats, a fixed mold seat is fixedly connected between the inner walls of the guide seats, a containing groove is formed in the top of each guide seat, an ejection mechanism is arranged below each fixed mold seat, a movable core is arranged above each fixed mold seat, a plurality of circular top grooves are formed in two sides of the bottom of each movable core, an injection molding hole is formed in the top of each movable core, first springs are fixedly connected to two sides of the bottom of each movable core, and the bottom ends of the first springs are fixedly connected to the bottoms of the containing grooves. The utility model has the characteristics of reasonable structural design, difficult abrasion, convenient replacement, no need of disassembling screws when replacing the movable core, no need of disassembling machines and the like.

Description

Injection mold with movable insert

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a movable insert.

Background

In the production and processing of plastic products, it is generally necessary to rapidly inject thermoplastics or thermosets into a mold by means of an injection molding process through associated equipment in order to cure the plastics to obtain various plastic products. The movable insert mould is similar to type printing, and because the main body structures of injection products of the same type and different types are the same, and partial structures are different, the movable insert mould is adopted on the injection mould to realize multiple purposes.

At present, due to the reasons of structural design, the connection part of the movable core and the core rod is easy to wear, so that errors are generated, and the screw is often required to be disassembled when the movable core is replaced, so that the replacement speed is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an injection mold with a movable insert, which aims to overcome the defects that the injection mold with the movable insert in the prior art is easy to wear, a screw needs to be disassembled when a movable core is replaced, and a machine needs to be disassembled when the movable core is replaced. The injection mold with the movable insert has the characteristics of reasonable structural design, difficulty in abrasion, no need of disassembling screws when the movable core is replaced, convenience in replacement, no need of disassembling the machine and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an injection mold that area activity was inserted, includes the base, the equal fixedly connected with guide holder in top both sides of base, the lift groove has been seted up on the surface of guide holder, fixedly connected with cover half seat between its inner wall, just the groove of accomodating has been seted up at the top of guide holder, the below of cover half seat is provided with ejection mechanism, and its top is provided with the core that lives, the circular overhead gage of a plurality of has all been seted up to the bottom both sides of the core that lives, and the hole of moulding plastics has been seted up at its top, just the equal fixedly connected with first spring in bottom both sides of the core that lives, the bottom fixed connection of first spring is at the tank bottom of accomodating the groove.

Preferably, a pair of sliding grooves are formed in the inner wall of the top of the movable core, sliding blocks are arranged in the sliding grooves, guide rods are fixedly connected to the inner walls of the sliding grooves, the guide rods penetrate through the sliding blocks, a second spring is fixedly connected between the sliding blocks and the wall of one side of each sliding groove, the second spring is wound on the rod body of each guide rod, and a movable mold base is arranged between the pair of sliding blocks.

Preferably, the bottom of the movable die holder and the top of the fixed die holder are both provided with a die cavity, the injection molding hole penetrates through the movable die holder and extends into the die cavity, and a movable insert is arranged in the die cavity at the bottom of the movable die holder.

Preferably, one side of the sliding block close to the movable die holder is fixedly connected with a clamping block, clamping grooves matched with the clamping block are formed in the surfaces of the side walls of the two sides of the movable die holder, and the clamping grooves and the clamping block are located on the same straight line.

Preferably, the inner wall of the top of the guide seat is provided with a hemispherical ball, a hemispherical locking groove matched with the ball is formed in the surface of one side, away from the movable die holder, of the sliding block, and the diameter of the locking groove is equal to that of the ball.

Preferably, the ejection mechanism comprises an air cylinder, the air cylinder is mounted on the base, a top plate is fixedly connected to the top end of an output shaft of the air cylinder, two ends of the top plate penetrate through the lifting groove and extend to the outer side of the guide seat, a plurality of core rods are fixedly connected to the tops of the two ends of the top plate, the number of the core rods is the same as that of the top grooves, the rod diameters of the core rods are equal to the diameters of the top grooves, and the core rods and the centers of the corresponding top grooves are located on the same straight line.

Preferably, the top end of each core rod is sleeved with a wear-resistant sleeve.

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

1. the movable core and the movable die seat can be jacked up together by mutual matching of all components in the jacking mechanism, so that the movable core can be replaced without disassembling the machine;

2. the movable die base can be locked through the mutual matching between the balls and the locking grooves, so that screws do not need to be disassembled when the movable core is replaced, and the replacement speed is greatly improved;

3. difficult wearing and tearing can be with the jack-up of loose core upwards through mutually supporting between core bar and the top groove, and the top of core bar all is equipped with wear-resisting cover, and wear-resisting cover can play the wear-resisting effect of buffering to effectively avoid the core bar and the junction of loose core to take place wearing and tearing.

Drawings

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

FIG. 2 is a schematic view of a structure of a loose core;

FIG. 3 is a schematic structural view of the fixed mold base and the ejection mechanism;

fig. 4 is an enlarged view of a portion a in fig. 2.

Reference numbers in the figures: 1. a base; 2. a guide seat; 3. a lifting groove; 4. fixing a die holder; 5. a receiving groove; 6. a movable core; 7. a top groove; 8. injection molding holes; 9. a first spring; 10. a chute; 11. a slider; 12. a guide bar; 13. a second spring; 14. a movable die holder; 15. a cavity; 16. a movable insert; 17. a clamping block; 18. a card slot; 19. a ball bearing; 20. locking the groove; 21. a cylinder; 22. a top plate; 23. a core bar; 24. a wear-resistant sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an injection mold with movable inserts comprises a base 1, both sides of the top of the base 1 are fixedly connected with guide seats 2, the surface of each guide seat 2 is provided with a lifting groove 3, a fixed mold seat 4 is fixedly connected between the inner walls of the guide seats, the top of each guide seat 2 is provided with a containing groove 5, an ejection mechanism is arranged below each fixed mold seat 4, a movable core 6 is arranged above each guide seat, both sides of the bottom of each movable core 6 are provided with a plurality of circular top grooves 7, each ejection mechanism comprises a cylinder 21, the cylinder 21 is arranged on the base 1, the top of an output shaft of the cylinder 21 is fixedly connected with a top plate 22, both ends of each top plate 22 penetrate through the lifting grooves 3 and extend to the outer side of the guide seat 2, the tops of both ends of each top plate 22 are fixedly connected with a plurality of core rods 23, the top plates 22 can be driven to move up and down along the lifting grooves 3 by driving the cylinders 21, the number of the core rods 23 is the same as that of the top grooves 7, the rod diameters of the core rods are equal to that of the top grooves 7, the centers of the core rods 23 and the corresponding top grooves 7 are positioned on the same straight line, the core rods 23 can be inserted into the corresponding top grooves 7, the movable core 6 can be jacked upwards through the mutual matching between the core rods 23 and the top grooves 7, the top end of each core rod 23 is sleeved with a wear-resistant sleeve 24, the wear-resistant sleeves 24 are made of rubber materials and have elasticity and can play a role in buffering and wear resistance, so that the abrasion of the joint of the core rods 23 and the movable core 6 is effectively avoided, the top of the movable core 6 is provided with an injection molding hole 8, the two sides of the bottom of the movable core 6 are fixedly connected with first springs 9, the bottom ends of the first springs 9 are fixedly connected with the bottom of the accommodating grooves 5, the inner wall of the top of the movable core 6 is provided with a pair of sliding grooves 10, sliding blocks 11 are arranged in the sliding grooves 10, guide rods 12 are fixedly connected with the inner wall of each sliding block 11, and second springs 13 are fixedly connected between the sliding blocks 11 and one side of the sliding grooves 10, the second spring 13 is wound on the rod body of the guide rod 12, a movable die holder 14 is arranged between the pair of sliders 11, one side of each slider 11 close to the movable die holder 14 is fixedly connected with a clamping block 17, clamping grooves 18 matched with the clamping blocks 17 are formed in the side wall surfaces of the two sides of the movable die holder 14, the centers of the clamping grooves 18 and the clamping blocks 17 are positioned on the same straight line, the sliders 11 can be tightly attached to the side wall of the movable die holder 14 under the elastic reset action of the second spring 13 so that the clamping blocks 17 can be inserted into the clamping grooves 18, the movable die holder 14 can be clamped and fixed through the mutual matching between the clamping blocks 17 and the clamping grooves 18, cavities 15 are formed in the bottom of the movable die holder 14 and the top of the fixed die holder 4, an injection molding hole 8 penetrates through the movable die holder 14 and extends into the cavities 15, movable inserts 16 are arranged in a cavity 15 in the bottom of the movable die holder 14, hemispherical balls 19 are arranged on the inner wall of the top of the guide holder 2, and a hemispherical locking groove 20 matched with the ball 19 is formed in the side surface of each slider 11 far away from the movable die holder 14, the lock groove 20 and the ball 19 have the same diameter, the ball 19 can be fitted in the lock groove 20, and the movable die holder 14 can be locked by the mutual engagement between the ball 19 and the lock groove 20.

The working principle is as follows: when the utility model is used, thermoplastic plastics or thermosetting plastics can be injected into the cavities 15 of the movable die holder 14 and the fixed die holder 4 through the injection molding hole 8, injection molding pieces with different structures can be obtained through different movable inserts 16 at the bottom of the movable die holder 14, when the movable core 6 needs to be replaced, the air cylinder 21 is driven to drive the top plate 22 to move upwards along the lifting groove 3 until the top end of the core rod 23 is inserted into the corresponding top groove 7, the movable core 6 can be jacked upwards through the core rod 23, at the moment, the first spring 9 in the accommodating groove 5 is stretched due to stress, meanwhile, the slide block 11 moves upwards along with the movable core 6 until the ball 19 is attached in the locking groove 20, at the moment, the slide block 11 slides towards two sides along the guide rod 12 under the elastic resetting action of the second spring 13 until the clamp block 17 is separated from the clamp grooves 18 at two sides of the movable die holder 14, so that the movable core 6 can be replaced without disassembling screws and machines, thereby greatly improving the replacing speed.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection mold of area activity is inserted, includes base (1), its characterized in that: the equal fixedly connected with in top both sides of base (1) leads seat (2), lift groove (3) have been seted up on the surface of leading seat (2), fixedly connected with cover half (4) between its inner wall, just the top of leading seat (2) has been seted up and has been accomodate groove (5), the below of cover half (4) is provided with ejection mechanism, and its top is provided with loose core (6), a plurality of circular top groove (7) have all been seted up to the bottom both sides of loose core (6), and injection hole (8) have been seted up at its top, just the equal fixedly connected with in bottom both sides of loose core (6) first spring (9), the bottom fixed connection of first spring (9) is at the tank bottom of accomodating groove (5).

2. The injection mold with the movable insert according to claim 1, wherein: a pair of sliding grooves (10) are formed in the inner wall of the top of the movable core (6), a sliding block (11) is arranged in each sliding groove (10), a guide rod (12) is fixedly connected to the inner wall of each sliding groove (10), each guide rod (12) penetrates through each sliding block (11), a second spring (13) is fixedly connected between each sliding block (11) and the groove wall of one side of each sliding groove (10), each second spring (13) is wound on the rod body of each guide rod (12), and a movable die holder (14) is arranged between each pair of sliding blocks (11).

3. The injection mold with the movable insert according to claim 2, wherein: the injection molding device is characterized in that cavities (15) are formed in the bottom of the movable die holder (14) and the top of the fixed die holder (4), the injection molding hole (8) penetrates through the movable die holder (14) and extends into the cavity (15), and a movable insert (16) is arranged in the cavity (15) in the bottom of the movable die holder (14).

4. The injection mold with the movable insert according to claim 2, wherein: one side fixedly connected with fixture block (17) that slider (11) is close to movable die holder (14), draw-in groove (18) with fixture block (17) matched with have all been seted up on the both sides lateral wall surface of movable die holder (14), draw-in groove (18) are located same straight line with the center of fixture block (17).

5. The injection mold with the movable insert according to claim 2, wherein: the inner wall of the top of the guide seat (2) is provided with hemispherical balls (19), one side surface of the sliding block (11) far away from the movable die holder (14) is provided with hemispherical locking grooves (20) matched with the balls (19), and the diameters of the locking grooves (20) and the balls (19) are equal.

6. The injection mold with the movable insert according to claim 1, wherein: the ejection mechanism comprises an air cylinder (21), the air cylinder (21) is installed on the base (1), a top plate (22) is fixedly connected to the top end of an output shaft of the air cylinder, two ends of the top plate (22) penetrate through the lifting groove (3) and extend to the outer side of the guide seat (2), a plurality of core rods (23) are fixedly connected to the tops of the two ends of the top plate (22), the number of the core rods (23) is the same as that of the top grooves (7), the rod diameter of each core rod is equal to the diameter of the top groove (7), and the center of each core rod (23) and the center of the corresponding top groove (7) are located on the same straight line.

7. The injection mold with the movable insert according to claim 6, wherein: the top end of each core rod (23) is sleeved with a wear-resistant sleeve (24).