CN220280333U

CN220280333U - Auxiliary jolt injection mold

Info

Publication number: CN220280333U
Application number: CN202320885568.0U
Authority: CN
Inventors: 陈国军
Original assignee: Suzhou Jieleite Mold Technology Co ltd
Current assignee: Foshan Yibo Plastic Industry Co ltd
Priority date: 2023-04-19
Filing date: 2023-04-19
Publication date: 2024-01-02
Anticipated expiration: 2033-04-19

Abstract

The utility model is suitable for the technical field of injection molds, and provides an auxiliary jolt injection mold which comprises a middle mold and a fixed seat fixedly connected with the ground at the bottom end, wherein an opening is formed in the top end of the fixed seat, an inner hydraulic cylinder is fixedly connected to the inside of the fixed seat, a fixed plate and a lower mold arranged at the bottom of the middle mold are fixedly connected to the top end of the fixed seat, and a plurality of cavities penetrate through the cavity in the middle mold. This supplementary jolt injection mold through setting up vibration mechanism, after the mouth of moulding plastics of injection molding machine is connected with the hole of moulding plastics of last mould inner chamber, and the injection molding machine carries out when moulding plastics to the inner chamber of die cavity, and interior hydraulic cylinder can drive vibration mechanism and carry out reciprocating motion for when the hemisphere piece beats the draw-in groove, can jolt the liquid of moulding plastics when not influencing the liquid of moulding plastics, can avoid the liquid of moulding plastics to be difficult to evenly distributed at the inner wall of shaping die cavity, the quality when guaranteeing the injection molding product and moulding plastics.

Description

Auxiliary jolt injection mold

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to an auxiliary jolt-ramming injection mold.

Background

The injection mold is usually processed by adopting an injection molding method, and the injection molding method has the advantages of high production speed and high efficiency, can realize automation of operation, has various patterns and shapes from simple to complex, has the size from large to small, has the accurate product size, is easy to update, can form a product with complex shape, and is suitable for the field of molding processing such as mass production, products with complex shape and the like.

The existing injection mold is a method for obtaining a molded product by stirring completely molten plastic materials at a certain temperature through a screw, injecting the plastic materials into a mold cavity by high pressure, and cooling and solidifying the plastic materials.

Most of the molding cavities are arranged in a stepped specification shape during injection molding, so that injection molding liquid is difficult to uniformly distribute in the molding cavities inside the injection molding mold, and the injection molded product is easy to have partial bubbles or partial position thickness weak, so that the product has defects, the product cannot be used normally, scrapped and the cost is increased.

Disclosure of Invention

The utility model provides an auxiliary jolt-ramming injection mold, which aims to solve the problem that the injection liquid is difficult to uniformly distribute on the inner wall of a molding cavity because most of the molding cavity is in a stepped specification shape, so that the injection molded product is easy to have partial bubbles or partial position thickness is weak.

The utility model discloses an auxiliary jolt injection mold, which comprises a middle mold and a fixed seat fixedly connected with the ground at the bottom end, wherein the top end of the fixed seat is provided with an opening, an inner hydraulic cylinder is fixedly connected with the inside of the fixed seat, the top end of the fixed seat is fixedly connected with a fixed plate and a lower mold arranged at the bottom of the middle mold, a plurality of mold cavities penetrate through the inside of the middle mold, and the mold cavities are gradually arranged in a decreasing manner from top to bottom; the upper die is arranged at the top of the middle die, an injection hole is formed in the upper die in a penetrating manner, a connecting hole which is adapted to the injection hole is formed in the bottom of the upper die, a core piece which is adapted to the cavity is detachably arranged in the upper die connecting hole, an injection pipe hole which penetrates through the core piece is formed in the core piece, and two ends of the injection pipe hole extend to the top and the bottom of the core piece respectively; the vibration mechanism is arranged in the middle mold and used for jolting injection molding liquid, and comprises: the sliding column is arranged in the inner cavity of the middle die and used for sliding, the surface of the sliding column is provided with a storage cavity, a hemispherical piece which is arranged in the inner cavity of the storage cavity and used for sliding, and a clamping groove which is arranged on the inner wall of the sliding cavity and is matched with the hemispherical piece; the support mechanism is arranged between the lower die and the fixed plate and comprises support plates respectively arranged on the lower die and the fixed plate.

Preferably, an inner supporting spring for supporting is arranged between one end of the hemispherical piece, which is far away from the clamping groove, and the inner wall of the storage cavity, and a sliding groove for sliding the sliding column is formed in the lower die.

Preferably, one end fixedly connected with connecting plate of slip post, the other end slidable of slip post extends to the outside of bed die, the slip post is located the outside one end fixedly connected with of well mould goes up the mounting panel, interior hydraulic cylinder is close to the one end fixedly connected with of going up the mounting panel down the mounting panel, down the mounting panel with can dismantle through the bolt between the backup pad and be connected.

Preferably, a push rod is fixedly connected to the bottom of the supporting plate, and the top end of the push rod penetrates through the top of the supporting plate and slidably extends into the lower die.

Preferably, the push rod is located at one end of the inner cavity of the lower die, an ejection cover matched with the bottom end of the die cavity is arranged at one end of the push rod, and an outer supporting spring used for supporting is arranged between the two supporting plates and located outside the push rod.

Preferably, the inside of the fixed plate is provided with a sliding hole which is adapted to the movement of the inner hydraulic cylinder, and the inside of the lower die is provided with an ejection hole which is communicated with the cavity inner cavity and is adapted to the ejection cover.

Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that: according to the auxiliary jolt injection mold, the vibration mechanism is arranged, when the injection port of the injection molding machine is connected with the injection hole of the inner cavity of the upper mold, the inner hydraulic cylinder can drive the vibration mechanism to reciprocate when the injection molding machine injects the inner cavity of the cavity, so that the hemispherical piece in the vibration mechanism is matched with the inner supporting spring to move in the inner cavity of the clamping groove, when the supporting spring pushes the hemispherical piece to expand, the hemispherical piece can shake when the clamping groove is beaten by the hemispherical piece, the injection molding liquid can be jolt without influencing injection molding liquid, the problem that the injection molding liquid is difficult to uniformly distribute on the inner wall of the molding cavity is avoided, the problem that part of bubbles or part of position thickness is weak easily exists in an injection molded product is solved, the quality of the injection molded product is ensured, the defect of the product is prevented, the product cannot be normally used, the resource waste is caused, and the production cost is increased.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model

FIG. 3 is a schematic diagram of the structure of the present utility model;

in the figure: 1. a middle mold; 2. an upper die; 3. injection molding holes; 4. a core piece; 5. a cavity; 6. a lower die; 7. a sliding column; 8. a connecting plate; 9. a sliding chamber; 10. an upper mounting plate; 11. a lower mounting plate; 12. a support plate; 13. an outer support spring; 14. a push rod; 15. a clamping groove; 16. a fixing seat; 17. a fixing plate; 18. an inner hydraulic cylinder; 19. a storage chamber; 20. hemispherical members.

Description of the embodiments

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides an auxiliary jolt injection mold, includes well mould 1, with bottom ground fixed connection and open fixing base 16 has been seted up on the top, the inside fixedly connected with inner hydraulic cylinder 18 of fixing base 16, the top fixedly connected with fixed plate 17 of fixing base 16 and the bed die 6 of locating well mould 1 bottom.

The lower die 6 is fixedly connected to the middle die 1.

The mould cavities 5 penetrate through the interior of the middle mould 1, a plurality of mould cavities 5 are arranged, and the mould cavities 5 are gradually arranged in a decreasing shape from top to bottom; an upper die 2 provided on top of the middle die 1.

The cavities 5 are arranged in a row and are communicated with each cavity 5 so as to facilitate injection molding production at the same time when the holes are formed each time.

The gradually decreasing shape of the cavity 5 is arranged in a step-like manner, so that after the core piece 4 is inserted into the cavity of the cavity 5, injection molding liquid is injected and cooled at the gap between the core piece 4 and the cavity 5, and the obtained shape can be cut according to requirements to form a plurality of circular rings with different specifications, and the mold can be applied to insulation protection of the bottom of an automobile battery, for example, but not limited to.

And the inside of last mould 2 runs through and has offered injection hole 3, and go up mould 2 bottom and be provided with the connecting hole that is adapted in injection hole 3, go up mould 2 connecting hole's inside detachably is provided with the core piece 4 that is adapted in die cavity 5, runs through the pipe hole of moulding plastics in core piece 4 inside, and the both ends of pipe hole of moulding plastics all extend to the top and the bottom of core piece 4 respectively.

Through the injection hole 3 on the upper die 2, the injection head of the injection molding machine is connected with the injection hole 3 inside the upper die 2, then the injection molding machine is used for stirring completely molten plastic materials at a certain temperature through a screw rod in the injection molding machine, the cavity of the cavity 5 is injected into the cavity by high pressure to be matched with the core piece 4 to obtain a desired shape, and the mold is taken out after cooling and solidification.

Locate inside the vibration mechanism that is used for jolt injection molding liquid of well mould 1, vibration mechanism is including: the sliding column comprises a sliding cavity 9 arranged in the middle die 1, a sliding column 7 arranged in the inner cavity of the sliding cavity 9 and used for sliding, a storage cavity 19 arranged on the surface of the sliding column 7, a hemispherical piece 20 arranged in the inner cavity of the storage cavity 19 and used for sliding, and a clamping groove 15 arranged on the inner wall of the sliding cavity 9 and matched with the hemispherical piece 20.

The inclined arrangement is formed at the bottom of the inner wall of the clamping groove 15, after the sliding column 7 drives the hemispherical piece 20 to move downwards, after the hemispherical piece 20 reaches the clamping groove 15, the hemispherical piece 20 is ejected out by the release elasticity of the inner supporting spring, so that the hemispherical piece 20 is hit inside the clamping groove 15, the middle die 1 slightly shakes, the normal injection molding of the cavity 5 is not influenced by an injection molding machine, the injection molding liquid in the cavity 5 is vibrated, and the problem that bubbles or uneven distribution exist in the injection molding liquid due to the influence of the shape of the cavity 5 is avoided, and the part position is thicker or thinner is caused.

In this embodiment, through vibration mechanism, after injection molding machine will mould plastics the inner chamber of liquid input die cavity 5, start the inside interior hydraulic cylinder 18 of fixing base 16 for interior hydraulic cylinder 18 drives sliding column 7 and carries out reciprocating motion at the inner chamber of sliding chamber 9, make sliding column 7 drive hemisphere spare 20 and remove, when sliding column 7 drive hemisphere spare 20 upwards remove, receive hemisphere spare 20 surface's radian influence, make hemisphere spare 20 extrude with draw-in groove 15's inner wall, thereby shrink after making interior supporting spring atress, make interior supporting spring produce elasticity and hold the power back hemisphere spare 20 and remove to accomodate the chamber 19, when so that follow-up interior supporting spring releases elasticity, hemisphere spare 20 can strike draw-in groove 15's inner wall.

The upper die 2 is fixedly connected with a guide rod, and a guide sleeve adapting to the guide rod is penetrated through the middle die 1, so that the middle die 1 and the upper die 2 are positioned and guided during connection.

Further, an inner supporting spring for supporting is arranged between one end of the hemispherical member 20 far away from the clamping groove 15 and the inner wall of the accommodating cavity 19, and a sliding groove for sliding the sliding column 7 is formed in the lower die 6.

In this embodiment, when the hemispherical member 20 is pressed against the inner wall of the clamping groove 15, the radian of the surface of the hemispherical member 20 can move on the inner wall of the clamping groove 15, so that the inner supporting spring is forced to shrink.

Further, one end fixedly connected with connecting plate 8 of slip post 7, the other end slidable of slip post 7 extends to the outside of bed die 6, and the one end fixedly connected with upper mounting panel 10 that the slip post 7 is located the outside of well mould 1, the one end fixedly connected with lower mounting panel 11 that interior hydraulic cylinder 18 is close to upper mounting panel 10, can dismantle through the bolt between lower mounting panel 11 and the backup pad 12 and be connected.

In this embodiment, the lower mounting plate 11 and the upper mounting plate 10 enable the mold to be detached from the fixing base 16, and when the working environment is not suitable for moving the mold in a vertical state, the mold is horizontally mounted on the fixing base 16 and the inner hydraulic cylinder 18 in a horizontal state, so that the mold can cope with different working environments.

The support mechanism is arranged between the lower die 6 and the fixed plate 17, and comprises a support plate 12 respectively arranged on the lower die 6 and the fixed plate 17.

Through supporting mechanism, when this mould is moulding plastics, supporting mechanism can support to middle mould 1, when the cooling back of moulding plastics needs the unloading, interior hydraulic cylinder 18 drives slide column 7 and removes for slide column 7 drives connecting plate 8 and continuously moves downwards, and then connecting plate 8 touches the surface of bed die 6, makes slide column 7 through mould 1 and bed die 6 downwardly move in the pulling of connecting plate 8.

Further, a push rod 14 is fixedly connected to the bottom support plate 12, and the top end of the push rod 14 penetrates through the top support plate 12 and slidably extends into the lower mold 6.

In this embodiment, when the supporting mechanism receives downward force, the outer supporting spring 13 in the supporting mechanism can be stressed to shrink, so that the push rod 14 pushes the ejection cover to eject the material in the cavity 5, so that the worker can take out the material.

Further, an ejection cover matched with the bottom end of the cavity 5 is fixedly arranged at one end of the push rod 14 positioned in the inner cavity of the lower die 6, and an outer support spring 13 for supporting is arranged between the two support plates 12 and positioned outside the push rod 14.

In this embodiment, the outer supporting spring 13 is a heavy spring, its bearing capacity is greater than the weight of this mould when using can for when the inner hydraulic cylinder 18 drives sliding chamber 9 and removes, outer supporting spring 13 can keep the support to this mould, prevent under the vertical state, when inner hydraulic cylinder 18 drives sliding column 7 and moves down, connecting plate 8 loses the support to sliding chamber 9, lead to the problem of outer supporting spring 13 atress pushing down, improve the stability in use of this mould, and when inner hydraulic cylinder 18 drives sliding column 7 and continues to move down, connecting plate 8 laminating the surface of lower mould 6, make the additional force of exerting centering mould 1 and move down of inner hydraulic cylinder 18, can make mould 1 move down, outer supporting spring 13 produces the shrink and make the ejecting lid at push rod 14 top to the product ejection of injection molding cooling shaping, in order to follow-up staff take out through the instrument.

The lower die 6 surface and lie in the outside average value fixed mounting of backup pad 12 have the guide bar, and the bottom of guided way is provided with the mounting disc, and the inside of fixed plate 17 link up and has offered the guiding hole that can supply the guide bar activity.

Based on the above scheme, when the outer supporting spring 13 is not applicable in the vertical state, auxiliary hydraulic cylinders can be installed at two sides of the fixed seat 16, so that the top ends of the auxiliary hydraulic cylinders are connected with the guide rods, and the auxiliary hydraulic cylinders are controlled to start and stop so as to control the height positions of the middle die 1 and the lower die 6, thereby replacing the outer supporting spring 13.

Further, a sliding hole adapted to the movement of the inner hydraulic cylinder 18 is formed in the fixing plate 17, and an ejection hole which is communicated with the cavity 5 and adapted to the ejection cover is formed in the lower die 6.

The inside of the middle mold 1 is provided with a water-cooling pipe, which provides an effect of rapidly cooling the injection molding product of the cavity 5, and the structure is prior art and will not be described in detail.

After cooling, the inner hydraulic cylinder 18 drives the sliding column 7 to move outwards, so that the hemispherical piece 20 hits the clamping groove 15 again, and the product demoulding is facilitated.

In this embodiment, by providing the ejection hole, when the middle mold 1 and the lower mold 6 move downward, the ejection cover is attached to the ejection hole, and when the inner cavity of the cavity 5 is plugged and sealed, after the injection molding liquid in the inner cavity of the cavity 5 is cooled, the push rod 14 drives the ejection cover to be inserted into the inner cavity of the cavity 5, so that a molded product in the inner cavity of the cavity 5 can be pushed out, and a worker can take out the product by using tools such as tweezers or other tools.

The working principle and the using flow of the utility model are as follows: after the mold is installed, the upper mold 2 and the middle mold 1 are in contact and seal, so that the core piece 4 is inserted into the inner cavity of the cavity 5 for matched use, then the injection molding machine injects heated injection molding liquid into the inner cavity of each cavity 5 through the injection molding holes 3 in the upper mold 2, in the injection molding process, the inner hydraulic cylinder 18 can drive the sliding column 7 to move in a small range in the inner cavity of the sliding cavity 9, the hemispherical piece 20 is used for beating the clamping groove 15, after jolting, the inner hydraulic cylinder 18 drives the sliding column 7 to reset, then the cold water pipeline is used for rapidly cooling a product in the inner cavity of the cavity 5, after cooling, the inner hydraulic cylinder 18 drives the sliding column 7 to move outwards, so that the hemispherical piece 20 is used for beating the clamping groove 15 again, the product is convenient to demould, then the sliding column 7 can apply force to the lower mold 6 to shrink, then the push rod 14 is driven to push the ejection cover to eject the mold in the inner cavity of the cavity 5, and in a vertical state, and workers can take out the product by adopting tools.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an auxiliary jolt injection mold, includes well mould (1), has offered open fixing base (16) with bottom ground fixed connection and top, the inside fixedly connected with inner hydraulic cylinder (18) of fixing base (16), the top fixedly connected with fixed plate (17) of fixing base (16) with locate bed die (6) of well mould (1) bottom, its characterized in that: the mold cavities (5) penetrate through the inner part of the middle mold (1), a plurality of mold cavities (5) are arranged, and the mold cavities (5) are gradually arranged in a decreasing manner from top to bottom;

the upper die (2) is arranged at the top of the middle die (1), an injection molding hole (3) is formed in the upper die (2) in a penetrating manner, a connecting hole which is adapted to the injection molding hole (3) is formed in the bottom of the upper die (2), a core piece (4) which is adapted to the cavity (5) is detachably arranged in the connecting hole of the upper die (2), an injection molding pipe hole which penetrates through the core piece (4) is formed in the core piece, and two ends of the injection molding pipe hole extend to the top and the bottom of the core piece (4) respectively;

the vibration mechanism is arranged in the middle mold (1) and used for jolting injection molding liquid, and comprises: the sliding column comprises a sliding cavity (9) arranged in the middle mold (1), a sliding column (7) arranged in the inner cavity of the sliding cavity (9) and used for sliding, a containing cavity (19) arranged on the surface of the sliding column (7), a hemispherical piece (20) arranged in the inner cavity of the containing cavity (19) and used for sliding, and a clamping groove (15) arranged on the inner wall of the sliding cavity (9) and matched with the hemispherical piece (20);

the support mechanism is arranged between the lower die (6) and the fixed plate (17), and comprises support plates (12) respectively arranged on the lower die (6) and the fixed plate (17).

2. An auxiliary jolt injection mold according to claim 1, wherein: an inner supporting spring for supporting is arranged between one end, far away from the clamping groove (15), of the hemispherical piece (20) and the inner wall of the containing cavity (19), and a sliding groove for sliding the sliding column (7) is formed in the lower die (6).

3. An auxiliary jolt injection mold according to claim 2, wherein: one end fixedly connected with connecting plate (8) of slip post (7), the other end slidable of slip post (7) extends to the outside of bed die (6), slip post (7) are located the outside one end fixedly connected with mounting panel (10) of well mould (1), interior hydraulic cylinder (18) are close to one end fixedly connected with mounting panel (11) down of last mounting panel (10), down mounting panel (11) with can dismantle through the bolt between backup pad (12).

4. An auxiliary jolt injection mold according to claim 1, wherein: the bottom of the supporting plate (12) is fixedly connected with a push rod (14), and the top end of the push rod (14) penetrates through the top of the supporting plate (12) and slidably extends into the lower die (6).

5. An auxiliary jolt injection mold according to claim 4, wherein: the push rod (14) is located one end of the inner cavity of the lower die (6) and fixedly provided with an ejection cover matched with the bottom end of the cavity (5), and an outer support spring (13) used for supporting is arranged between the two support plates (12) and outside the push rod (14).

6. An auxiliary jolt injection mold according to claim 5, wherein: the inner part of the fixed plate (17) is provided with a sliding hole which is adapted to the movement of the inner hydraulic cylinder (18), and the inner part of the lower die (6) is provided with an ejection hole which is communicated with the inner cavity of the cavity (5) and is adapted to the ejection cover.