CN219727030U

CN219727030U - Improved injection mold

Info

Publication number: CN219727030U
Application number: CN202320938346.0U
Authority: CN
Inventors: 邹敏敏
Original assignee: Huanqi Plastic Industry Co ltd Taicang
Current assignee: Huanqi Plastic Industry Co ltd Taicang
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-09-22
Anticipated expiration: 2033-04-24

Abstract

The utility model relates to the field of molds, in particular to an improved injection mold, which comprises an injection mold body, wherein the injection mold body comprises a movable mold and a fixed mold from top to bottom, an injection pipe is arranged at the top of the movable mold, a plurality of guide rods are fixedly connected to the lower surface of the movable mold, a plurality of guide holes are formed in the upper surface of the fixed mold at vertical corresponding positions of the guide rods, and a movable mechanism is arranged at the outer side of the fixed mold; a U-shaped groove is formed in the edge of the upper surface of the fixed die, one end of the U-shaped groove is communicated with the inside of the guide hole, and a supporting plate is fixedly connected to the inside of the guide hole; after the movable die and the fixed die are clamped, the lubricating liquid in the outer cylinder can be discharged into the guide hole through the infusion channel by pushing the piston rod, the liquid level is raised, the lubricating liquid entering the guide hole can enter the outer side of the guide rod through the overflow gap and enter between the guide rod and the gap of the guide hole, and the infiltration can be completed only by a small amount of lubricating liquid due to the filling of the guide rod.

Description

Improved injection mold

Technical Field

The utility model relates to the field of molds, in particular to an improved injection mold.

Background

The injection molding method has the advantages of high production speed, high efficiency, automation of operation, multiple colors, various shapes, large size, accurate product size, easy updating of products, and capability of forming products with complex shapes, and is suitable for the field of mass production, products with complex shapes and other molding processing.

Publication No.: CN218366325U discloses an injection mold, the guide hole downside that corresponds the guide arm setting on the cover half utensil is provided with the storage chamber of lubricating liquid, and set up the piston that is linked together with the liquid storage chamber outside the cover half utensil, through the lateral shifting of piston, the height of the interior lubricating liquid of control guide hole, and then the cover of control lubricating liquid in the guide hole, the condition that the locating lever is wearing and tearing appears easily at frequent in-process of inserting the constant head tank has been solved to the locating lever, and then it is unstable to lead to locating lever and constant head tank gomphosis, the compound die stability has been influenced, the technical problem that needs to improve.

In the prior art, although the transverse movement of the piston can control the height of the lubricating liquid in the guide hole, so that the lubricating liquid wets the guide hole, the storage requirement of the lubricating oil in the liquid storage cavity is higher in the mode, and after the guide rod is inserted into the guide hole, the outer wall, particularly the bottom, is easy to be stained with the lubricating liquid, and after the movable die is lifted, the lubricating liquid is easy to drop on the surface of the die and even in the forming cavity of the injection molding part, so that unnecessary troubles are brought, and therefore, an improved injection molding die is provided.

Disclosure of Invention

The present utility model is directed to an improved injection mold, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, an improved injection mold comprises an injection mold body, wherein the injection mold body comprises a movable mold and a fixed mold from top to bottom, an injection pipe is arranged at the top of the movable mold, a plurality of guide rods are fixedly connected to the lower surface of the movable mold, a plurality of guide holes are formed in the upper surface of the fixed mold at positions corresponding to the guide rods in the vertical direction, and a movable mechanism is arranged on the outer side of the fixed mold and used for controlling the height of lubricating liquid dripped into the guide holes;

the upper surface edge of cover half has seted up the U-shaped groove, the one end and the inside intercommunication of guide hole of U-shaped groove, the inside fixedly connected with backup pad of guide hole, the outside edge of guide hole is provided with the excessive clearance that encircles the guide hole and distribute, the downside of guide hole is equipped with the infusion passageway that is linked together with the guide hole, the other end and the movable mechanism of infusion passageway are linked together.

Further: the movable mechanism comprises an outer barrel, the outer barrel is fixedly connected to the outer wall of the fixed die, one end of the outer barrel is slidably connected with a piston rod, and one end of the outer barrel, far away from the piston rod, is provided with a through hole communicated with the infusion channel.

Further: one side of the guide hole is communicated with an overflow tank, and one side of the outer wall of the fixed die, which is close to the overflow tank, is fixedly connected with a glass plate.

Further: the number of U-shaped grooves is matched with the number of guide holes.

Further: the distance between the support plate and the top surface of the fixed die is matched with the length of the guide rod.

Further: the overflow tank is L-shaped, and the length of the rising end of the overflow tank is matched with the length of the glass plate.

Further: the width of the overflow tank is 1mm.

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

1. after the movable die and the fixed die are clamped, the lubricating liquid in the outer cylinder can be discharged into the guide hole through the infusion channel by pushing the piston rod, the liquid level is raised, the lubricating liquid entering the guide hole can enter the outer side of the guide rod through the overflow gap and enter between the guide rod and the gap of the guide hole, and the infiltration can be completed only by a small amount of lubricating liquid due to the filling of the guide rod;

2. lubricating liquid still flows to the rear side of glass board from the overflow groove, can observe the liquid level in the guide hole through the glass board, promotes the fineness that controls the piston rod, before the demolding, pulls the piston rod to spill, because the guide hole passes through U-shaped groove and external intercommunication, under the atmospheric pressure effect, can pull the lubricating liquid that covers in the guide hole bottom and return in the urceolus again, withdraws the lubricating liquid that adheres to the guide arm outer wall, avoids the guide arm to rise back surface adhesion a large amount of lubricating liquid whereabouts.

Drawings

FIG. 1 is a schematic front view of an improved injection mold according to the present utility model;

FIG. 2 is a schematic top view of a stationary mold in an improved injection mold according to the present utility model;

FIG. 3 is a schematic side view of a stationary mold in an improved injection mold according to the present utility model;

FIG. 4 is an enlarged schematic view of the portion A of an improved injection mold according to the present utility model;

fig. 5 is an enlarged schematic view of a portion B of an improved injection mold according to the present utility model.

In the figure: 1. an injection mold body; 2. a movable mold; 21. injection molding a tube; 3. a fixed mold; 4. a guide rod; 5. a guide hole; 6. a movable mechanism; 7. a U-shaped groove; 8. a support plate; 9. an overflow gap; 10. an infusion channel; 11. an outer cylinder; 12. a piston rod; 13. a through hole; 14. a liquid overflow tank; 15. a glass plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an improved injection mold according to a preferred embodiment of the present utility model includes an injection mold body 1, the injection mold body 1 includes a movable mold 2 and a fixed mold 3 from top to bottom, an injection pipe 21 is disposed at the top of the movable mold 2, a plurality of guide rods 4 are fixedly connected to the lower surface of the movable mold 2, a plurality of guide holes 5 are disposed on the upper surface of the fixed mold 3 at positions corresponding to the guide rods 4 in the vertical direction, a movable mechanism 6 is disposed on the outer side of the fixed mold 3, and the movable mechanism 6 is used for controlling the height of lubricating liquid dropping into the guide holes 5;

the edge of the upper surface of the fixed die 3 is provided with a U-shaped groove 7, one end of the U-shaped groove 7 is communicated with the inside of the guide hole 5, a supporting plate 8 is fixedly connected in the guide hole 5, an overflow gap 9 distributed around the guide hole 5 is arranged at the outer edge of the guide hole 5, an infusion channel 10 communicated with the guide hole 5 is arranged at the lower side of the guide hole 5, and the other end of the infusion channel 10 is communicated with the movable mechanism 6; due to the arrangement of the U-shaped groove 7, after the movable die 2 and the fixed die 3 are clamped, the U-shaped groove 7 and the overflow gap 9 are matched, the guide hole 5 is still communicated with the external environment, and the movable mechanism 6 can still control the liquid level of lubricating oil in the guide hole 5 after the guide rod 4 enters the guide hole 5.

The movable mechanism 6 comprises an outer cylinder 11, the outer cylinder 11 is fixedly connected to the outer wall of the fixed die 3, one end of the outer cylinder 11 is slidably connected with a piston rod 12, one end of the outer cylinder 11, far away from the piston rod 12, is provided with a through hole 13 communicated with the infusion channel 10, and as shown in fig. 3 and 5, when lubricating liquid is deposited at the bottom of the guide hole 5, the lubricating liquid can be pumped into the outer cylinder 11 by pulling the piston rod 12 outwards, so that the liquid level is lowered, the piston rod 12 is pushed to move towards the side close to the fixed die 3 in a reverse direction, and the liquid level can be lifted.

One side of the guide hole 5 is communicated with a liquid overflow groove 14, one side of the outer wall of the fixed mold 3, which is close to the liquid overflow groove 14, is fixedly connected with a glass plate 15, and when lubricating liquid enters the guide hole 5, the lubricating liquid can penetrate through the glass plate 15 to the liquid level of the lubricating liquid overflowed from the guide hole 5 to the liquid overflow groove 14, so that the lubricating oil can be conveniently controlled to cover the infiltration guide rod 4 during mold closing, and the lubricating oil cannot overflow.

The number of U-shaped grooves 7 is adapted to the number of guide holes 5.

The distance between the supporting plate 8 and the top surface of the fixed mold 3 is matched with the length of the guide rod 4, and it can be understood that the bottom of the guide rod 4 is not required to be adhered with lubricating oil, and the contact friction between the outer wall and the guide hole 5 is mainly generated in the process of the guide rod 4 entering the guide hole 5, so that the supporting plate 8 can prevent the lubricating oil from contacting the bottom of the guide hole 5.

The overflow tank 14 is L-shaped, the length of the rising end of the overflow tank 14 is matched with the length of the glass plate 15, and the width of the overflow tank 14 is 1mm, so that the difficulty of filling the overflow tank 14 with lubricating oil is reduced while the liquid level in the overflow tank 14 is observed.

In this embodiment, when the injection molding is produced in this mould, after the injection molding raw materials in the injection molding machine promotes movable mould 2 and cover half 3 compound die at the press, by pipeline, the injection molding pipe 21 at driven mould 2 top gets into the injection molding intracavity that sets up to movable mould 2 and cover half 3 opposite side, it is to supplement to need, the top of injection molding die body 1 is provided with the through-hole that corresponds for the position with injection molding pipe 21, make things convenient for the passage of raw materials pipeline, the follow-up is because the compound die of movable mould 2 and cover half 3, guide arm 4 inserts in guide hole 5, through the promotion to piston rod 12, can make the lubricating liquid in urceolus 11 pass infusion channel 10 and discharge guide hole 5 in, and rise the liquid level, the lubricating liquid that gets into in guide hole 5 can pass excessive clearance 9 and get into the outside of guide arm 4, and get into between the gap of guide arm 4 and guide hole 5, because the packing of guide arm 4 only needs a small amount of lubricating liquid can accomplish infiltration, the in-process, part lubricating liquid still flows to the rear side of glass plate 15 from the overflow groove 14, can carry out the liquid level in 5 through glass plate 15, finally, observe the guide hole through the guide arm 12, the guide hole is drawn back to the guide hole after the outer wall of the ejector pin is pulled out by the die cavity, the ejector pin is cooled down by the outer wall of ejector pin 4, the ejector pin is greatly, the outer wall is avoided after the ejector pin is cooled down by the outer die, the outer die is cooled down by the lubricating liquid, the outer die is cooled down by the air, and the outer die is cooled down, and the air pressure has been cooled down.

The foregoing is a further elaboration of the present utility model in connection with the detailed description, and it is not intended that the utility model be limited to the specific embodiments shown, but rather that a number of simple deductions or substitutions be made by one of ordinary skill in the art without departing from the spirit of the utility model, should be considered as falling within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides an improved injection mold, includes injection mold body (1), injection mold body (1) from top to bottom includes movable mould (2) and cover half (3), the top of movable mould (2) is provided with injection pipe (21), the lower surface fixedly connected with of movable mould (2) a plurality of guide arm (4), the upper surface of cover half (3) is provided with a plurality of guide hole (5) in the vertical department of corresponding of guide arm (4), the outside of cover half (3) is equipped with movable mechanism (6), movable mechanism (6) are used for controlling the height of dripping the interior lubricating liquid of guide hole (5);

the method is characterized in that: u-shaped groove (7) have been seted up to upper surface edge of cover half (3), the one end and the guide hole (5) inside of U-shaped groove (7) are linked together, the inside fixedly connected with backup pad (8) of guide hole (5), the outside edge of guide hole (5) is provided with around overflow clearance (9) that guide hole (5) distribute, the downside of guide hole (5) is equipped with infusion channel (10) that are linked together with guide hole (5), the other end and the movable mechanism (6) of infusion channel (10) are linked together.

2. The improved injection mold of claim 1, wherein: the movable mechanism (6) comprises an outer cylinder (11), the outer cylinder (11) is fixedly connected to the outer wall of the fixed die (3), one end of the outer cylinder (11) is slidably connected with a piston rod (12), and one end, far away from the piston rod (12), of the outer cylinder (11) is provided with a through hole (13) communicated with the infusion channel (10).

3. The improved injection mold of claim 1, wherein: one side of the guide hole (5) is communicated with a liquid overflow groove (14), and one side of the outer wall of the fixed die (3) close to the liquid overflow groove (14) is fixedly connected with a glass plate (15).

4. The improved injection mold of claim 1, wherein: the number of the U-shaped grooves (7) is matched with the number of the guide holes (5).

5. The improved injection mold of claim 1, wherein: the distance between the supporting plate (8) and the top surface of the fixed die (3) is matched with the length of the guide rod (4).

6. An improved injection mold as claimed in claim 3, wherein: the overflow tank (14) is L-shaped, and the length of the rising end of the overflow tank (14) is matched with the length of the glass plate (15).

7. An improved injection mold as claimed in claim 3, wherein: the width of the overflow tank (14) is 1mm.