CN212446089U

CN212446089U - An injection mold for an injection molding machine

Info

Publication number: CN212446089U
Application number: CN202020422552.2U
Authority: CN
Inventors: 高峰; 朱海兵; 张春竹
Original assignee: Jiangsu Jinglihua New Material Co ltd
Current assignee: Jiangsu Jinglihua New Material Co ltd
Priority date: 2020-03-29
Filing date: 2020-03-29
Publication date: 2021-02-02
Anticipated expiration: 2030-03-29

Abstract

The utility model discloses an injection mould for an injection moulding machine, which comprises a base, a lower mould is arranged above the base, an upper mould is arranged above the lower mould, a top seat is arranged above the upper mould, and an upper end of the lower mould is arranged A No. 1 cavity groove is set, a No. 2 cavity groove is set at the lower end of the upper mold, a support rod is fixedly installed between the corner positions of the base and the top seat, and the upper surface of the top base is fixed on both sides. A No. 1 hydraulic cylinder is installed, and a No. 1 telescopic rod is installed at the lower end of the two sets of No. 1 hydraulic cylinders. The upper surface of the upper mold is provided with a battery near the middle position, and the upper end of the upper mold is provided with an injection groove in the middle position. The injection mold has good sealing performance, which can prevent the thermoplastic from flowing into the gap between the upper mold and the lower mold, improve the quality of the molded product, and can play a good anti-blocking effect, and also has convenient automatic Release function.

Description

Injection mold for injection molding machine

Technical Field

The utility model relates to an injection mold field specifically is an injection mold for injection molding machine.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used when parts with complex shapes are produced in batches, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification;

the injection mold for the injection molding machine on the market can not avoid generally that the heat is moulded and is flowed into the gap between the mould, has reduced the quality of shaping article, and when moulding plastics, the hole of moulding plastics makes the heat to mould the cooling easily and blocks up moreover, does not play fine anti-blocking effect, and traditional drawing of patterns adopts the mode of artifical thimble, does not possess convenient automatic drawing of patterns function, for this reason, we propose an injection mold for the injection molding machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold for injection molding machine to solve for the market that proposes among the above-mentioned background art in the injection mold for injection molding machine can not avoid generally that the heat is moulded and flow in the gap between the mould, reduced the quality of shaping article, moreover when moulding plastics, the hole of moulding plastics makes the heat easy to be moulded and the cooling is blocked up, does not play fine anti-clogging effect, traditional drawing of patterns adopts the mode of artifical thimble, does not possess the problem of convenient automatic drawing of patterns function.

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold for an injection molding machine comprises a base, wherein a lower mold is arranged above the base, an upper mold is arranged above the lower mold, a top seat is arranged above the upper mold, a first-size cavity groove is formed in the upper end of the lower mold, a second-size cavity groove is formed in the lower end of the upper mold, supporting rods are fixedly arranged between corner positions of the base and the top seat, a first hydraulic cylinder is fixedly arranged on the upper end surface of the top seat close to two sides, a first telescopic rod is arranged at the lower end of each of two sets of the first hydraulic cylinders, a storage battery is arranged on the upper end surface of the upper mold close to the middle position, an injection molding groove is formed in the middle position of the upper end of the upper mold, a first heating ring is arranged on the periphery of the injection molding groove, an injection molding hole is formed in the lower end of the injection molding groove, a second heating ring is arranged, the lower die is characterized in that grooves are formed in the upper end surface of the lower die close to two sides, a first magnetic ring is arranged at the bottom end of the interior of the upper die, a second magnetic ring is arranged at the top end of the interior of the lower die, a second hydraulic cylinder is fixedly mounted in the middle of the surface of the upper end of the base, a second telescopic rod is mounted at the upper end of the second hydraulic cylinder, a supporting plate is arranged at the upper end of the second telescopic rod, ejector pins are fixedly mounted on the surface of the upper end of the base, springs are arranged on the outer side surfaces of the four groups of ejector pins.

As a further aspect of the present invention, the base and the footstock are parallel to each other, and four groups the supporting rods are all perpendicular to each other.

As a further scheme of the utility model, footstock upper end intermediate position runs through and has seted up the through-hole, and two sets of pneumatic cylinders set up about the through-hole symmetry No. one, and go up the mould through telescopic link movable mounting in the bed die top No. one.

As a further aspect of the utility model, the battery respectively with a heating ring and No. two heating ring electric connection, the groove of moulding plastics is located the through-hole under.

As a further scheme of the utility model, a magnetic ring and No. two magnetic rings mutually support, and a magnetic ring and No. two magnetic ring designs for different in nature magnet, the slot has been seted up to the nose bar lower extreme, the inside bottom of recess is provided with the inserted bar, and the nose bar passes through inserted bar cooperation slot movable mounting inside the recess.

As a further scheme of the utility model, the bed die is through No. two telescopic link cooperation backup pads and spring movable mounting in No. two pneumatic cylinders tops, four groups the thimble all runs through the bed die and the symmetry sets up in No. two pneumatic cylinder peripheries.

Compared with the prior art, the beneficial effects of the utility model are that: the injection mold is characterized in that the upper mold and the lower mold are respectively provided with the convex rod and the groove, two groups of the first hydraulic cylinders at the upper end of the top seat can be started firstly to drive two groups of the first telescopic rods to descend, so that the upper mold is driven to descend at a constant speed, the convex rod on the upper mold is inserted into the groove on the lower mold through the insertion rod matching slot at the moment, and the first magnetic ring and the second magnetic ring are mutually attracted and matched, so that the upper mold and the lower mold are tightly attached to each other, the sealing performance is good, thermoplastic plastic is prevented from flowing into a gap between the upper mold and the lower mold, and the quality of a finished;

the injection mold is characterized in that a first heating ring and a second heating ring are respectively arranged on the peripheries of an injection groove and an injection hole, when an upper mold is tightly attached to the lower mold, the first heating ring and the second heating ring are powered and heated by a storage battery, so that the first heating ring and the second heating ring respectively raise the temperature inside the injection groove and the injection hole, and then an injection head of an injection molding machine penetrates through a through hole to be matched with the injection groove, so that thermoplastic plastics enter the injection hole and flow into a first-type cavity groove and a second-type cavity groove;

this injection mold is through being provided with spring and push pedal on the thimble, after heat is moulded at a type cavity groove and the inside cooling shaping of No. two type cavity grooves, start the pneumatic cylinder No. one, it rises with last mould to drive a telescopic link, start the pneumatic cylinder No. two of base intermediate position after that, it descends to drive No. two telescopic links, thereby it descends to drive the backup pad, make the bed die slowly descend through four groups of springs, push pedal on the thimble makes the shaping article keep the normal position this moment, and then make the shaping article take off the bed die, convenient automatic demoulding function has.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of A in FIG. 2 according to the present invention;

fig. 4 is a schematic view of a partial structure of the present invention.

In the figure: 1. a base; 2. a lower die; 3. an upper die; 4. a top seat; 5. a size cavity groove; 6. a second-type cavity groove; 7. a support bar; 8. a first hydraulic cylinder; 9. a first telescopic rod; 10. a storage battery; 11. injection molding a groove; 12. a first heating ring; 13. injection molding holes; 14. a second heating ring; 15. a nose bar; 16. a groove; 17. a first magnetic ring; 18. a second magnetic ring; 19. a second hydraulic cylinder; 20. a second telescopic rod; 21. a support plate; 22. a thimble; 23. a spring; 24. a push plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an injection mold for an injection molding machine comprises a base 1, a lower mold 2 is arranged above the base 1, an upper mold 3 is arranged above the lower mold 2, a top seat 4 is arranged above the upper mold 3, a first-size cavity groove 5 is arranged at the upper end of the lower mold 2, a second-size cavity groove 6 is arranged at the lower end of the upper mold 3, supporting rods 7 are fixedly arranged between corner positions of the base 1 and the top seat 4, a first-size hydraulic cylinder 8 is fixedly arranged on the upper end surface of the top seat 4 close to two sides, a first-size telescopic rod 9 is arranged at the lower ends of two first-size hydraulic cylinders 8, a storage battery 10 is arranged on the upper end surface of the upper mold 3 close to the middle position, an injection molding groove 11 is arranged at the middle position of the upper end of the upper mold 3, a first-size heating ring 12 is arranged on the periphery of the injection molding groove 11, an injection molding hole 13 is arranged at the lower, four groups of support rods 7 are all perpendicular to the base 1, a through hole is arranged at the middle position of the upper end of the top seat 4 in a penetrating mode, two groups of first hydraulic cylinders 8 are symmetrically arranged around the through hole, the upper die 3 is movably arranged above the lower die 2 through a first telescopic rod 9, the storage battery 10 is respectively electrically connected with a first heating ring 12 and a second heating ring 14, the injection molding groove 11 is arranged right below the through hole, the first heating ring 12 and the second heating ring 14 are respectively arranged on the peripheries of the injection molding groove 11 and the injection molding hole 13, when the upper die 3 is tightly attached to the lower die 2, the first heating ring 12 and the second heating ring 14 are powered and heated through the storage battery 10, so that the first heating ring 12 and the second heating ring 14 respectively raise the temperature inside of the injection molding groove 11 and the injection molding hole 13, then an injection head of the injection molding machine penetrates through the through hole and is matched with the injection molding groove 11, and thermoplastic plastics enter the injection hole 13, and flows into the first-size cavity groove 5 and the second-size cavity groove 6, and during the period, the injection hole 13 is unobstructed, so that thermoplastic solidification and blockage cannot occur, and a good anti-blockage effect is achieved;

the lower end surface of the upper die 3 is provided with convex rods 15 close to both sides, the upper end surface of the lower die 2 is provided with grooves 16 close to both sides, the bottom end inside the upper die 3 is provided with a first magnetic ring 17, the top end inside the lower die 2 is provided with a second magnetic ring 18, the first magnetic ring 17 and the second magnetic ring 18 are mutually matched, the first magnetic ring 17 and the second magnetic ring 18 are designed into opposite magnets, the lower end of the convex rod 15 is provided with a slot, the bottom end inside the groove 16 is provided with an insert rod, the convex rod 15 is movably arranged inside the groove 16 through the insert rod matching with the slot, two sets of the first hydraulic cylinders 8 at the upper end of the top seat 4 can be started firstly through arranging the convex rods 15 and the groove 16 on the upper die 3 and the lower die 2 respectively, so as to drive the two sets of the first telescopic rods 9 to descend, thereby driving the upper die 3 to descend at a constant speed, at, meanwhile, the first magnetic ring 17 and the second magnetic ring 18 are mutually attracted and matched, so that the upper die 3 is tightly attached to the lower die 2, the sealing performance is good, thermoplastic plastic is prevented from flowing into a gap between the upper die 3 and the lower die 2, and the quality of a finished product is improved;

a second hydraulic cylinder 19 is fixedly arranged in the middle of the upper end surface of the base 1, a second telescopic rod 20 is arranged at the upper end of the second hydraulic cylinder 19, a support plate 21 is arranged at the upper end of the second telescopic rod 20, ejector pins 22 are fixedly arranged on the upper end surface of the base 1, springs 23 are arranged on the outer side surfaces of four groups of ejector pins 22 in a surrounding manner, push plates 24 are fixedly arranged at the upper ends of four groups of ejector pins 22, the lower die 2 is movably arranged above the second hydraulic cylinder 19 through the second telescopic rod 20 in a matching manner with the support plate 21 and the springs 23, the four groups of ejector pins 22 penetrate through the lower die 2 and are symmetrically arranged at the periphery of the second hydraulic cylinder 19, the springs 23 and the push plates 24 are arranged on the ejector pins 22, after thermoplastic plastics are cooled and formed in the first cavity groove 5 and the second cavity groove 6, the first hydraulic cylinder 8 is started to drive the first telescopic rod 9 and the, the second telescopic rod 20 is driven to descend, so that the supporting plate 21 is driven to descend, the lower die 2 slowly descends through the four groups of springs 23, the push plate 24 on the ejector pin 22 enables the formed product to be kept in the original position, the formed product is separated from the lower die 2, and the automatic demolding function is convenient and fast.

The working principle is as follows: for the injection mold, firstly, four groups of support rods 7 play a role in stably supporting the upper mold 3 and the lower mold 2, then, a worker starts two groups of first hydraulic cylinders 8 at the upper end of the top seat 4 to drive two groups of first telescopic rods 9 to descend so as to drive the upper mold 3 to descend at a constant speed, at the moment, a convex rod 15 on the upper mold 3 is inserted into a groove 16 on the lower mold 2 through an insertion rod matching slot, and meanwhile, a first magnetic ring 17 and a second magnetic ring 18 are mutually attracted and matched, so that the upper mold 3 and the lower mold 2 are tightly attached, the sealing performance is good, thermoplastic is prevented from flowing into a gap between the upper mold 3 and the lower mold 2, and the quality of a finished product is improved; secondly, when the upper mold 3 is tightly attached to the lower mold 2, the first heating ring 12 and the second heating ring 14 are powered and heated through the storage battery 10, so that the first heating ring 12 and the second heating ring 14 respectively raise the temperature inside the injection molding groove 11 and the injection molding hole 13, and then an injection molding head of the injection molding machine penetrates through the through hole to be matched with the injection molding groove 11, so that thermoplastic plastics enter the injection molding hole 13 and flow into the first-type cavity groove 5 and the second-type cavity groove 6, and during the period, the injection molding hole 13 is smooth and unobstructed, cannot be blocked due to thermoplastic solidification, and plays a good role in blocking prevention; and finally, after the thermoplastic is cooled and formed in the first-size cavity groove 5 and the second-size cavity groove 6, the first hydraulic cylinder 8 is started to drive the first telescopic rod 9 and the upper die 3 to ascend, then the second hydraulic cylinder 19 in the middle of the base 1 is started to drive the second telescopic rod 20 to descend, so that the support plate 21 is driven to descend, the lower die 2 slowly descends through the four groups of springs 23, the formed product is kept in the original position by the push plate 24 on the ejector pin 22, the formed product is separated from the lower die 2, and the automatic demolding function is convenient and fast.

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. An injection mold for an injection molding machine, comprising a base (1), characterized in that: a lower mold (2) is provided above the base (1), and an upper mold (3) is provided above the lower mold (2) , a top seat (4) is arranged above the upper mold (3), a number one cavity groove (5) is provided at the upper end of the lower mold (2), and a number two cavity groove is provided at the lower end of the upper mold (3) (6), a support rod (7) is fixedly installed between the corner positions of the base (1) and the top seat (4), and a No. 1 hydraulic pressure is fixedly installed on the upper surface of the top seat (4) near both sides. Cylinder (8), two sets of No. 1 hydraulic cylinders (8) are provided with a No. 1 telescopic rod (9) at the lower end, and a battery (10) is provided on the upper end surface of the upper mold (3) near the middle position. (3) An injection groove (11) is provided in the middle position of the upper end, a heating ring (12) is arranged on the periphery of the injection groove (11), and an injection hole (13) is formed at the lower end of the injection groove (11). A No. 2 heating ring (14) is arranged on the periphery of the hole (13), protruding rods (15) are provided on both sides of the lower end surface of the upper die (3), and protruding rods (15) are provided on the upper end surface of the lower die (2) near both sides. There is a groove (16), the inner bottom end of the upper mold (3) is provided with a No. 1 magnetic ring (17), the inner top of the lower mold (2) is provided with a No. 2 magnetic ring (18). ) A No. 2 hydraulic cylinder (19) is fixedly installed in the middle position of the upper end surface, a No. 2 telescopic rod (20) is installed on the upper end of the No. 2 hydraulic cylinder (19), and a support plate is provided on the upper end of the No. 2 telescopic rod (20). (21), thimbles (22) are fixedly installed on the upper surface of the base (1), springs (23) are arranged around the outer surfaces of the four groups of the thimbles (22), and the upper ends of the four groups of the thimbles (22) are A push plate (24) is fixedly installed.

2. An injection mold for an injection molding machine according to claim 1, characterized in that: the base (1) and the top seat (4) are arranged parallel to each other, and the four groups of the support rods (7) are all connected to the base (1). 1) Set perpendicular to each other.

3. An injection mold for an injection molding machine according to claim 1, characterized in that: a through hole is formed through the middle position of the upper end of the top seat (4), and two sets of No. 1 hydraulic cylinders (8) are about the through hole. Symmetrically arranged, and the upper mold (3) is movably installed above the lower mold (2) through a No. 1 telescopic rod (9).

4 . The injection mold for an injection molding machine according to claim 1 , wherein the battery ( 10 ) is electrically connected to the No. 1 heating ring ( 12 ) and the No. 2 heating ring ( 14 ) respectively, and the The injection groove (11) is located just below the through hole.

5. An injection mold for an injection molding machine according to claim 1, characterized in that: the No. 1 magnetic ring (17) and the No. 2 magnetic ring (18) cooperate with each other, and the No. 1 magnetic ring (17) is compatible with the No. 1 magnetic ring (17) The No. 2 magnetic ring (18) is designed as a magnet of the opposite sex, a slot is provided at the lower end of the protruding rod (15), an insertion rod is arranged at the bottom end of the groove (16), and the protruding rod (15) is matched by the insertion rod The slot is movably installed inside the groove (16).

6. An injection mold for an injection molding machine according to claim 1, characterized in that: the lower mold (2) is movably installed on the support plate (21) and the spring (23) through the No. 2 telescopic rod (20) Above the No. 2 hydraulic cylinder (19), the four sets of thimbles (22) all penetrate the lower die (2) and are symmetrically arranged on the periphery of the No. 2 hydraulic cylinder (19).