CN221392137U - Sealed foam injection mold with cooling mechanism - Google Patents

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to a sealed foam injection mold with a cooling mechanism, which comprises an upper mold, a lower mold, a driving mechanism, a cooling mechanism, an ejection mechanism and an air cooling mechanism; the driving mechanism is used for driving the upper die to cover with the lower die, and the upper die and the lower die form a die cavity; the lower die is internally provided with an installation cavity and a liquid cooling cavity; the ejection mechanism is used for ejecting the sealed foam after injection molding, and the air cooling mechanism is communicated with the ejection mechanism; the air cooling mechanism comprises a snake-shaped bent pipe, two ends of the snake-shaped bent pipe extend out of the lower die and are respectively provided with a liquid inlet and a liquid outlet, the liquid inlet is connected with a liquid inlet joint extending out of the lower die, and the liquid outlet is connected with a liquid outlet joint extending out of the lower die. The cooling liquid enters the serpentine bent pipe from the liquid inlet joint, and the cooling liquid in the serpentine bent pipe exchanges heat with heat in the die cavity to take away the heat. The cold air blown out by the air cooling mechanism can be further cooled. Thus, the effect of rapid cooling is realized, and the quality of the sealed foam is ensured.

Description

Sealed foam injection mold with cooling mechanism

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to a sealed foam injection mold with a cooling mechanism.

Background

The sealing foam is a material widely applied to the fields of electronics, automobiles, buildings and the like, and has excellent sound insulation, heat insulation, vibration prevention and buffering performances. In the production process, the cooling speed of the injection mold directly influences the molding quality and the production efficiency of foam. However, the existing cooling system of the injection mold often has low cooling efficiency, which leads to overlong foam molding time or uneven cooling, and affects the quality of foam.

Disclosure of utility model

The utility model aims to provide a sealed foam injection mold with a cooling mechanism, and aims to solve the technical problems that the cooling efficiency of an injection mold cooling system in the prior art is low, so that foam molding time is too long, or cooling is uneven, and foam quality is affected.

In order to achieve the above purpose, the embodiment of the utility model provides a sealed foam injection mold with a cooling mechanism, which comprises an upper mold, a lower mold, a driving mechanism, a cooling mechanism, an ejection mechanism and an air cooling mechanism; the upper die is arranged above the lower die, and is provided with a feed inlet; the driving mechanism is arranged at the top of the upper die and is used for driving the upper die to be covered with the lower die, and a die cavity communicated with the feed inlet is formed between the upper die and the lower die; the lower die is internally provided with an installation cavity for installing the ejection mechanism and the air cooling mechanism and a liquid cooling cavity for installing the cooling mechanism; the mounting cavity is communicated with the die cavity, the ejection mechanism is used for ejecting the sealed foam after injection molding, the air cooling mechanism is communicated with the ejection mechanism and used for blowing cold air out of the ejection mechanism so as to facilitate demolding and cooling of the sealed foam; the air cooling mechanism comprises a snake-shaped bent pipe arranged in the liquid cooling cavity, two ends of the snake-shaped bent pipe extend out of the lower die and are respectively provided with a liquid inlet and a liquid outlet, the liquid inlet is connected with a liquid inlet joint extending out of the lower die, and the liquid outlet is connected with a liquid outlet joint extending out of the lower die.

Optionally, the serpentine bent pipe comprises a first bent pipe, a second bent pipe and a third bent pipe, wherein the first bent pipe and the third bent pipe are parallel to each other and are perpendicular to the second bent pipe; the liquid inlet of the second elbow is connected with the liquid inlet joint, and the liquid outlet of the second elbow is connected with the liquid outlet joint; the first elbow and the third elbow are communicated with the second elbow.

Optionally, the ejection mechanism comprises a driving cylinder, a driving connecting rod and an ejection block, the driving cylinder is arranged at the bottom of the mounting cavity, the driving connecting rod is connected with the moving end of the driving cylinder, and the ejection block is arranged at one end of the driving connecting rod, which is opposite to the driving cylinder; the lower die is provided with an ejection groove for the ejection block to pass through, the ejection groove is communicated with the die cavity, and the ejection block is driven by the driving cylinder to pass through the ejection groove to the die cavity; the driving connecting rod and the ejection block are provided with a cold air channel which is communicated, the top of the ejection block is provided with an air outlet, and an air outlet pipe of the air cooling mechanism is communicated with the cold air channel.

Optionally, one end of the driving connecting rod is bifurcated to form three supporting rods, the three supporting rods are internally provided with the cold air channels, and the three supporting rods are connected with the ejection blocks.

Optionally, a deformation flap for sealing the air outlet is arranged at the air outlet of the ejection block, and a plurality of deformation slits radially extending from the center of the deformation flap are arranged on the deformation flap.

Optionally, the deformation joints are four, and the four deformation joints divide the deformation petals into four petals.

Optionally, the deformation joints are eight, and the eight deformation joints are arranged on the deformation petals in a shape of a Chinese character 'mi'.

Optionally, the air cooling mechanism includes fan and air-supply line, the fan set up in the side of drive cylinder, the fan with the air-supply line with go out the tuber pipe intercommunication, the one end of air-supply line stretches out outside the lower mould.

Optionally, the actuating mechanism includes lift cylinder, mounting panel and four guide pillars, four the guide pillar all vertical set up in on the lower mould, go up mould sliding connection in four on the guide pillar, the mounting panel is fixed in four the top of guide pillar, the lift cylinder is fixed in on the mounting panel, just the removal end of lift cylinder with go up the mould and be connected.

Optionally, a plug for closing the feed inlet is arranged on the upper die.

The above technical scheme in the sealed foam injection mold with the cooling mechanism provided by the embodiment of the utility model has at least one of the following technical effects: when the mold is used, the driving mechanism drives the upper mold to be close to the lower mold, and then raw materials are injected into the mold cavity through the feed inlet. After the sealed foam is formed, the cooling liquid enters the serpentine bent pipe from the liquid inlet connector, and when the heat of the die cavity is transferred to the side wall of the die cavity, the cooling liquid in the serpentine bent pipe exchanges heat with the heat in the die cavity, so that the heat is taken away. The driving mechanism drives the upper die to be separated from the lower die, the ejection mechanism ejects the sealing foam from the lower die to realize demolding, in the process, the air cooling mechanism blows high-pressure air into the die cavity to damage the sealing and abutting state of the formed sealing foam and the bottom of the die cavity, the bonding force of the formed sealing foam and the bottom of the die cavity is reduced, and the sealing foam is easier to demold. Because the S-shaped bent pipe is arranged continuously, the flow stroke of the cooling liquid is longer, the cooling of the die cavity can be fully realized, and cold air blown out by the air cooling mechanism can be further cooled after injection molding. Thus, the effect of rapid cooling is realized, and the quality of the sealed foam is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a sealed foam injection mold with a cooling mechanism according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of the sealed foam injection mold of fig. 1 with a cooling mechanism.

Fig. 3 is a schematic structural view of the cooling mechanism of fig. 1.

Fig. 4 is a schematic structural diagram of the ejector block of fig. 1 in a state in which an air outlet is closed.

Fig. 5 is a schematic structural diagram of the ejector block of fig. 1 in a deformed state of a deformation flap at an air outlet.

Wherein, each reference sign in the figure:

10-upper die 20-lower die 21-mounting cavity

22-Liquid cooling cavity 30-driving mechanism 31-lifting cylinder

32-Mounting plate 33-guide post 40-cooling mechanism

41-Liquid inlet 42-liquid outlet 43-first elbow

44-Second elbow 45-third elbow 50-ejection mechanism

51-Driving cylinder 52-driving connecting rod 53-ejection block

54-Cold air duct 55-deformation flap 56-deformation seam

60-Air cooling mechanism 61-air outlet pipe 62-fan

63-Air inlet pipe 70-die cavity.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to fig. 1 to 5 are exemplary and intended to illustrate embodiments of the present utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 to 5, there is provided a sealed foam injection mold having a cooling mechanism, comprising an upper mold 10, a lower mold 20, a driving mechanism 30, a cooling mechanism 40, an ejector mechanism 50, and an air cooling mechanism 60; the upper die 10 is arranged above the lower die 20, and the upper die 10 is provided with a feed inlet; the driving mechanism 30 is arranged at the top of the upper die 10, the driving mechanism 30 is used for driving the upper die 10 and the lower die 20 to be covered, and a die cavity 70 communicated with a feed inlet is formed between the upper die 10 and the lower die 20; the lower die 20 is internally provided with a mounting cavity 21 for mounting the ejection mechanism 50 and the air cooling mechanism 60 and a liquid cooling cavity 22 for mounting the cooling mechanism 40; the mounting cavity 21 is communicated with the die cavity 70, the ejection mechanism 50 is used for ejecting the sealed foam after injection molding, the air cooling mechanism 60 is communicated with the ejection mechanism 50 and is used for blowing cold air out of the ejection mechanism 50 so as to facilitate demolding and cooling of the sealed foam; the air cooling mechanism 60 comprises a serpentine bent pipe arranged in the liquid cooling cavity 22, the serpentine bent pipe is continuously bent in an S shape, and the ejection mechanism 50 is used for ejecting part of the formed sealed foam from the serpentine bent pipe. Both ends of the serpentine bent pipe extend out of the lower die 20 and are respectively provided with a liquid inlet 41 and a liquid outlet 42, the liquid inlet 41 is connected with a liquid inlet joint extending out of the lower die 20, and the liquid outlet 42 is connected with a liquid outlet joint extending out of the lower die 20.

Further, as shown in fig. 1 to 2, the driving mechanism 30 includes a lifting cylinder 31, a mounting plate 32 and four guide posts 33, the four guide posts 33 are vertically disposed on the lower die 20, the upper die 10 is slidably connected to the four guide posts 33, the mounting plate 32 is fixed on top of the four guide posts 33, the lifting cylinder 31 is fixed on the mounting plate 32, and the moving end of the lifting cylinder 31 is connected to the upper die 10. Specifically, the four guide posts 33 serve as guides for the upper die 10 so that the upper die 10 is stably moved, and also serve as a fixed mounting plate 32 for mounting the lifting cylinder 31. The lifting cylinder 31 is disposed on one side of the mounting plate 32 facing away from the upper die 10, and a lifting end of the lifting cylinder 31 passes through the mounting plate 32 and is connected with the upper die 10.

Further, a plug for closing the feed inlet is provided on the upper die 10. Specifically, after the raw materials are injected from the feed inlet, the feed inlet can be closed by a plug.

Specifically, in use, the drive mechanism 30 drives the upper die 10 toward the lower die 20, and then injects the raw material into the die cavity 70 through the feed port. After the sealed foam is formed, the cooling liquid enters the serpentine bent pipe from the liquid inlet joint, and when the heat of the die cavity 70 is transferred to the side wall of the die cavity 70, the cooling liquid in the serpentine bent pipe exchanges heat with the heat in the die cavity 70, so that the heat is taken away. The driving mechanism 30 drives the upper die 10 to be separated from the lower die 20, the ejection mechanism 50 ejects the sealing foam from the lower die 20 to realize demolding, in the process, the air cooling mechanism 60 blows high-pressure air into the die cavity 70 to damage the sealing and abutting state of the formed sealing foam and the bottom of the die cavity 70, the bonding force between the formed sealing foam and the bottom of the die cavity 70 is reduced, and the sealing foam is easier to demold. Because the serpentine bent pipe is arranged in a continuous S shape, the flow stroke of the cooling liquid is longer, the cooling of the die cavity 70 can be fully realized, and the cold air blown out by the air cooling mechanism 60 can be further cooled after injection molding. Thus, the effect of rapid cooling is realized, and the quality of the sealed foam is ensured.

In the present embodiment, as shown in fig. 2 to 3, the serpentine bend includes a first bend 43, a second bend 44, and a third bend 45, the first bend 43 and the third bend 45 being parallel to each other and each being disposed perpendicular to the second bend 44; the liquid inlet 41 of the second elbow 44 is connected with a liquid inlet joint, and the liquid outlet 42 of the second elbow 44 is connected with a liquid outlet joint; the first elbow 43 and the third elbow 45 are both in communication with the second elbow 44. Specifically, the liquid inlet 41 of the first elbow 43 is communicated with the liquid inlet 41 of the second elbow 44, the liquid outlet 42 of the first elbow 43 is communicated with the liquid outlet 42 of the second elbow 44, the liquid inlet 41 of the third elbow 45 is communicated with the liquid inlet 41 of the second elbow 44, the liquid outlet 42 of the third elbow 45 is communicated with the liquid outlet 42 of the second elbow 44, and cooling liquid enters from the liquid inlet joint, then enters into the second elbow 44 and the first elbow 43 respectively, then enters into the third elbow 45, finally enters into respective pipelines and is converged at the liquid outlet 42 of the second elbow 44. The side wall of the die cavity 70 can be cooled through the first bent pipe 43 and the third bent pipe 45, and the cooling effect is further improved.

In this embodiment, as shown in fig. 2, the ejection mechanism 50 includes a driving cylinder 51, a driving connecting rod 52 and an ejection block 53, the driving cylinder 51 is disposed at the bottom of the mounting cavity 21, the driving connecting rod 52 is connected with the moving end of the driving cylinder 51, and the ejection block 53 is disposed at one end of the driving connecting rod 52 opposite to the driving cylinder 51; the lower die 20 is provided with an ejection groove for the ejection block 53 to pass through, the ejection groove is communicated with the die cavity 70, and the ejection block 53 is driven by the driving cylinder 51 to pass through the ejection groove to the die cavity 70; the driving connecting rod 52 and the ejection block 53 are provided with a cold air channel 54 which is communicated, the top of the ejection block 53 is provided with an air outlet, and an air outlet pipe 61 of the air cooling mechanism 60 is communicated with the cold air channel 54. Specifically, since the serpentine bent pipe has an S-shape, a space for avoiding the empty ejection block 53 can be formed. After injection molding, the driving cylinder 51 drives the driving connecting rod 52 to move upwards, the driving connecting rod 52 drives the ejection block 53 to move upwards, the ejection block 53 stretches out of the ejection groove and ejects the sealed foam, meanwhile, the air cooling mechanism 60 supplies air into the cold air channel 54 of the driving connecting rod 52 through the air outlet pipe 61, and the cold air is conveyed to the air outlet of the ejection block 53 through the cold air channel 54 to be sent out, so that further cooling and more easy demoulding of the sealed foam are realized.

In this embodiment, as shown in fig. 2, one end of the driving link 52 is bifurcated to form three support rods, each of the three support rods is provided with a cold air duct 54, and each of the three support rods is connected with an ejector block 53. Specifically, the force of ejecting the sealing foam is uniform through the three ejection blocks 53, and the air sent by the air cooling mechanism 60 can also uniformly cool the sealing foam.

In this embodiment, as shown in fig. 4 to 5, a deformation flap 55 for closing the air outlet is disposed at the air outlet of the ejector block 53, and a plurality of deformation slits 56 extending radially with the center of the deformation flap 55 are disposed on the deformation flap 55. Specifically, the deformation flap 55 has elastic deformation capability, when the air cooling mechanism 60 does not send air, the deformation flap 55 seals the air outlet, the cold air duct 54 is isolated from the mold cavity 70, when the air cooling mechanism 60 sends air, cold air passes through the deformation flap 55, so that the deformation flap 55 deforms due to the existence of the deformation slit 56, and the cold air is sent out of the air outlet. The deformation slits 56 may be four, and the four deformation slits 56 divide the deformation flap 55 into four flaps. The number of the deformation joints 56 can be eight, and the eight deformation joints 56 are arranged on the deformation flap 55 in a shape like a Chinese character 'mi'. The number of specific deformation joints 56 is set according to actual requirements.

In this embodiment, as shown in fig. 2, the air cooling mechanism 60 includes a fan 62 and an air inlet pipe 63, the fan 62 is disposed beside the driving cylinder 51, the fan 62 is communicated with the air inlet pipe 63 and the air outlet pipe 61, and one end of the air inlet pipe 63 extends out of the lower die 20. Specifically, the blower 62 generates wind force, draws in external wind through the air inlet duct 63, and sends the wind into the cool air duct 54 from the air outlet duct 61.

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 (10)

1. Sealed foam injection mold with cooling mechanism, its characterized in that: comprises an upper die, a lower die, a driving mechanism, a cooling mechanism, an ejection mechanism and an air cooling mechanism; the upper die is arranged above the lower die, and is provided with a feed inlet; the driving mechanism is arranged at the top of the upper die and is used for driving the upper die to be covered with the lower die, and a die cavity communicated with the feed inlet is formed between the upper die and the lower die; the lower die is internally provided with an installation cavity for installing the ejection mechanism and the air cooling mechanism and a liquid cooling cavity for installing the cooling mechanism; the mounting cavity is communicated with the die cavity, the ejection mechanism is used for ejecting the sealed foam after injection molding, the air cooling mechanism is communicated with the ejection mechanism and used for blowing cold air out of the ejection mechanism so as to facilitate demolding and cooling of the sealed foam; the air cooling mechanism comprises a snake-shaped bent pipe arranged in the liquid cooling cavity, two ends of the snake-shaped bent pipe extend out of the lower die and are respectively provided with a liquid inlet and a liquid outlet, the liquid inlet is connected with a liquid inlet joint extending out of the lower die, and the liquid outlet is connected with a liquid outlet joint extending out of the lower die.

2. The sealed foam injection mold with a cooling mechanism of claim 1, wherein: the serpentine bent pipe comprises a first bent pipe, a second bent pipe and a third bent pipe, wherein the first bent pipe and the third bent pipe are parallel to each other and are perpendicular to the second bent pipe; the liquid inlet of the second elbow is connected with the liquid inlet joint, and the liquid outlet of the second elbow is connected with the liquid outlet joint; the first elbow and the third elbow are communicated with the second elbow.

3. The sealed foam injection mold with a cooling mechanism of claim 1, wherein: the ejection mechanism comprises a driving cylinder, a driving connecting rod and an ejection block, wherein the driving cylinder is arranged at the bottom of the mounting cavity, the driving connecting rod is connected with the moving end of the driving cylinder, and the ejection block is arranged at one end of the driving connecting rod, which is opposite to the driving cylinder; the lower die is provided with an ejection groove for the ejection block to pass through, the ejection groove is communicated with the die cavity, and the ejection block is driven by the driving cylinder to pass through the ejection groove to the die cavity; the driving connecting rod and the ejection block are provided with a cold air channel which is communicated, the top of the ejection block is provided with an air outlet, and an air outlet pipe of the air cooling mechanism is communicated with the cold air channel.

4. The sealed foam injection mold with a cooling mechanism of claim 3, wherein: and one end of the driving connecting rod is bifurcated to form three supporting rods, the three supporting rods are internally provided with cold air channels, and the three supporting rods are connected with the ejection blocks.

5. The sealed foam injection mold with a cooling mechanism of claim 3, wherein: the air outlet of the ejection block is provided with a deformation flap for sealing the air outlet, and the deformation flap is provided with a plurality of deformation slits which radially extend with the circle center of the deformation flap.

6. The sealed foam injection mold with a cooling mechanism of claim 5, wherein: the deformation joints are four, and the four deformation joints divide the deformation valve into four valve pieces.

7. The sealed foam injection mold with a cooling mechanism of claim 5, wherein: the deformation joints are eight, and the eight deformation joints are arranged on the deformation petals in a shape of a Chinese character 'mi'.

8. The sealed foam injection mold with a cooling mechanism of claim 3, wherein: the air cooling mechanism comprises a fan and an air inlet pipe, the fan is arranged at the side of the driving cylinder, the fan is communicated with the air inlet pipe and the air outlet pipe, and one end of the air inlet pipe extends out of the lower die.

9. The sealed foam injection mold with a cooling mechanism according to any one of claims 1 to 8, characterized in that: the driving mechanism comprises a lifting cylinder, a mounting plate and four guide posts, wherein the four guide posts are vertically arranged on the lower die, the upper die is connected to the four guide posts in a sliding manner, the mounting plate is fixed at the tops of the four guide posts, the lifting cylinder is fixed on the mounting plate, and the moving end of the lifting cylinder is connected with the upper die.

10. The sealed foam injection mold with a cooling mechanism according to any one of claims 1 to 8, characterized in that: and a plug for closing the feed inlet is arranged on the upper die.