CN215203334U

CN215203334U - High-efficient cooling device of injection mold

Info

Publication number: CN215203334U
Application number: CN202120735754.7U
Authority: CN
Inventors: 罗加新
Original assignee: Wuxi Senjun Precision Injection Moulding Co ltd
Current assignee: Wuxi Senjun Precision Injection Moulding Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-17
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a high-efficient cooling device of injection mold belongs to injection molding machine technical field. An injection mold efficient cooling device is cooled through an air cooling machine water cooling double system, so that the heat dissipation efficiency of the interior of an injection molding machine is improved, the deformation rate of plastic deformation of an injection molding piece is reduced, the qualification rate of a produced piece is ensured, and the service life of the part is prolonged; in order to reduce energy consumption, when the water tank pumps water to absorb heat and cool, the hot air is cooled and liquefied through the condensing pipe and then is pumped back into the water tank through the circulating pump to realize water circulation, so that the overall energy utilization rate is improved; a cooling mechanism is arranged in the movable mold, and heat absorption is carried out through a circulating water pipe in the cooling mechanism, so that the heat generated in the movable mold is reduced, and the temperature in the movable mold is kept constant; after the movable mould is processed, the plastic part is prevented from falling into the injection molding machine after the mould is opened to cause the defects of damage, deformation and the like, and a collecting box is arranged below the movable mould to carry out uniform collection and transportation.

Description

High-efficient cooling device of injection mold

Technical Field

The utility model belongs to the technical field of the injection molding machine, especially, high-efficient cooling device of injection mold.

Background

An injection molding machine is also known as an injection molding machine or an injection machine, and is main molding equipment for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and is divided into a vertical type, a horizontal type and a full-electric type; the injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The injection molding machine that we used, the cooling system that uses usually only is the forced air cooling heat dissipation, and uses this kind of single cooling system, can appear when the mould shaping because of the cooling plastic part plastic deformation that leads to inadequately abundant, because can carry out high temperature heating's operating characteristic in the injection molding machine during operation movable mould simultaneously, can lead to having overheated problem between the long-time work part of movable mould, and lead to injection molding machine life to receive the influence seriously.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a high-efficient cooling device of injection mold to solve the above-mentioned problem that prior art exists.

The technical scheme is as follows: an efficient cooling device for an injection mold comprises an injection molding machine body, a heat dissipation device arranged on the side face of the injection molding machine body, a movable mold arranged in the injection molding machine body, a fixed mold matched with the movable mold, and an inbox arranged below the movable mold;

the heat dissipation device comprises an air cooling mechanism arranged above the injection molding machine body and a water cooling mechanism arranged below the air cooling mechanism;

the inbox is of a structure capable of adjusting the whole length of the box body, first connecting plates are arranged at the end portions of the two sides of the inbox, second connecting plates are connected with the first connecting plates in a clamped mode, third connecting plates are connected with the second connecting plates in a clamped mode, and fourth connecting plates are connected with the third connecting plates in a clamped mode.

In a further embodiment, the air cooling mechanism comprises a heat dissipation port arranged above the injection molding machine body, a heat dissipation channel connected with the heat dissipation port, and a heat dissipation fan fixedly connected with the bottom of the heat dissipation channel, wherein the head of the heat dissipation fan can swing; the heat generated in the injection molding machine body is discharged through the air cooling mechanism, and the temperature and the pressure in the injection molding machine are reduced.

In a further embodiment, the whole heat dissipation opening is arranged in a horn mouth shape, and an annular wind shield is arranged inside the heat dissipation channel; the heat dissipation speed is accelerated through the bell mouth-shaped heat dissipation port, and the internal wind shield can make the heat dissipation channel internally shunted to be spiral, so that the heat dissipation efficiency is higher.

In a further embodiment, the water cooling mechanism comprises a water tank arranged on the side surface of the heat dissipation fan, a water outlet pipe screwed with the water tank, and a condensation pipe fixedly connected with the water outlet pipe, wherein the water outlet pipe is arranged inside the inner wall of the injection molding machine body; encircle the outlet pipe at the injection molding machine inner wall, through the endothermic characteristic of water, take away partly heat, be in the same place with air-cooled mechanism cooperation, the heat gives off more fully, and efficiency is higher.

In a further embodiment, the condensation pipe is connected with the water tank, and a circulating pump is arranged between the condensation pipe and the water tank and is connected with the condensation pipe and the water tank; the water in the condensation pipe is pumped into the water tank through the pumping force of the circulating pump, and the energy is utilized.

In a further embodiment, a cooling mechanism is arranged inside the movable mold, the cooling mechanism comprises a water inlet arranged above the movable mold and a circulating water pipe fixedly connected with the water inlet, a water outlet is arranged at the end part of the other end of the circulating water pipe, a collecting box is arranged on the side surface of the water outlet, and a baffle is arranged between the water outlet and the collecting box; the heat in the movable mould is absorbed through the cooling mechanism, the heat generated when the movable mould works is reduced, and the service life of the movable mould is prolonged.

In a further embodiment, the interior of the baffle is a hollow structure, a push rod is arranged in the baffle, a pressure plate fixedly connected with the push rod, a cleaning ball arranged on the side surface of the pressure plate, and a water outlet nozzle connected with the cleaning ball pipe; the large granular impurities are blocked by the baffle plate and then collected together by the collecting box, and metal ions and the like generated on the surface of the baffle plate are cleaned by the cleaning agent in the cleaning ball when the cleaning ball works for a long time, so that the cleanliness of the baffle plate is kept.

Has the advantages that: an injection mold efficient cooling device is cooled through an air cooling machine water cooling double system, so that the heat dissipation efficiency of the interior of an injection molding machine is improved, the deformation rate of plastic deformation of an injection molding piece is reduced, the qualification rate of a produced piece is ensured, and the service life of the part is prolonged; in order to reduce energy consumption, when the water tank pumps water to absorb heat and cool, the hot air is cooled and liquefied through the condensing pipe and then is pumped back into the water tank through the circulating pump to realize water circulation, so that the overall energy utilization rate is improved; a cooling mechanism is arranged in the movable mold, and heat absorption is carried out through a circulating water pipe in the cooling mechanism, so that the heat generated in the movable mold is reduced, and the temperature in the movable mold is kept constant; after the movable mould is processed, the plastic part is prevented from falling into the injection molding machine after the mould is opened to cause the defects of damage, deformation and the like, and a collecting box is arranged below the movable mould to carry out uniform collection and transportation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the inside structure of the movable mold.

Fig. 3 is a schematic view of the structure of the interior of the baffle.

Fig. 4 is a schematic diagram of the structure of the inbox.

The reference signs are: the injection molding machine comprises a heat dissipation port 1, a water tank 2, a water outlet pipe 3, a circulating pump 4, a movable mold 5, a heat dissipation fan 6, a condensation pipe 7, an inbox 8, an injection molding machine body 9, a fixed mold 10, a baffle plate 11, a water inlet 12, a circulating water pipe 13, a round hole 14, a collecting box 15, a water outlet 16, a push rod 17, a pressing plate 18, a cleaning ball 19, a water outlet nozzle 20, a clamping plate 21, a first connecting plate 22, a threaded hole 23, a third connecting plate 24, a second connecting plate 25 and a fourth connecting plate 26.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

As shown in fig. 1 to 4, an efficient cooling device for an injection mold comprises a heat dissipation port 1, a water tank 2, a water outlet pipe 3, a circulating pump 4, a movable mold 5, a heat dissipation fan 6, a condensation pipe 7, an inbox 8, an injection molding machine body 9, a fixed mold 10, a baffle 11, a water inlet 12, a circulating water pipe 13, a circular hole 14, a collection box 15, a water outlet 16, a push rod 17, a pressure plate 18, a cleaning ball 19, a water outlet nozzle 20, a clamping plate 21, a first connecting plate 22, a threaded hole 23, a third connecting plate 24, a second connecting plate 25 and a fourth connecting plate 26.

As shown in fig. 1 to 4, the injection molding machine body 9 is arranged at a designated position, the heat dissipation device is connected with the injection molding machine body 9, the heat dissipation device comprises an air cooling mechanism and a water cooling mechanism, the air cooling mechanism is connected with the injection molding machine body 9, the air cooling mechanism comprises a heat dissipation fan 6 connected with the injection molding machine body 9, a heat dissipation channel connected with the heat dissipation fan 6, a heat dissipation port 1 is connected with the heat dissipation channel, the heat dissipation port 1 is horn-shaped, the water cooling mechanism comprises a water outlet pipe 3 arranged on the inner wall of the injection molding machine body 9, the water tank 2 is fixedly connected with the water outlet pipe 3, a condensation pipe 7 is connected with the water outlet pipe 3, a circulation pump 4 is connected with the condensation pipe 7, and the water tank 2 is connected with the circulation pump 4, the movable die 5 is arranged in the injection molding machine body 9, the fixed die 10 is adapted to the movable die 5, the inbox 8 is arranged in the injection molding machine body 9, the inbox 8 is arranged in a telescopic structure, the first connecting plate 22 is arranged in the inbox 8, the second connecting plate 25 is clamped with the first connecting plate 22, the third connecting plate 24 is clamped with the second connecting plate 25, the fourth connecting plate 26 is clamped with the third connecting plate 24, a concentric threaded hole 23 is formed in the surface of the inbox 8, through holes are formed in the end parts of the first connecting plate 22, the second connecting plate 25, the third connecting plate 24 and the fourth connecting plate 26, the through holes are adapted to the size of the clamping plate 21, and a cooling mechanism is arranged in the movable die 5, the cooling mechanism comprises a water inlet 12 arranged on the surface of the movable die 5 and a circulating water pipe 13 arranged inside the movable die 5, the water inlet 12 is fixedly connected with the circulating water pipe 13, a water outlet 16 is connected with the circulating water pipe 13, a collecting box 15 is connected with the circulating water pipe 13, a baffle 11 is arranged between the water outlet 16 and the collecting box 15, the inside of the baffle 11 is of a hollow structure, a push rod 17 is arranged inside the baffle 11, a pressing plate 18 is fixedly connected with the push rod 17, a cleaning ball 19 floats inside the baffle 11, and a water outlet nozzle 20 is connected with the cleaning ball 19 through a water pipe.

As is known, the injection molding machine used by people can release a large amount of heat in the working process, so that the internal temperature of the injection molding machine is overhigh and the pressure is higher, the injection molding machine can work for a long time under the condition that overload work is caused among all parts, the parts are excessively abraded due to high heat, the service life of the parts is shortened, the parts need to be maintained and replaced, and the overall maintenance cost of the injection molding machine is improved;

in order to give off the temperature in the injection molding machine as far as possible, the injection molding machine is internally provided with two cooling systems of air cooling and water cooling, the heat is absorbed through the cooling fan 6 and then is radiated in the first step through the traditional method of the heat dissipation port 1, the cooling fan 6 can swing at a certain angle in the working process, the swing angle is designed to be 30-50 degrees, the heat in the injection molding machine can be absorbed and then is discharged at multiple angles, meanwhile, the heat dissipation port 1 is designed to be horn-shaped, the head is big and the tail is small, the heat dissipation area can be increased, the heat dissipation efficiency is improved, two layers of wind shields are arranged in a heat dissipation channel, firstly, the external heat is prevented from flowing backwards, secondly, the heat dissipation airflow is made to be spiral, the integral heat dissipation speed is improved, the heat in the injection molding machine is discharged in time, and the internal temperature is reduced.

Carry out the heat dissipation work of injection molding machine transverse direction through the water-cooling, outlet pipe 3 encircles in the injection molding machine inner wall, reduce the bulk temperature of injection molding machine, outlet pipe 3 links together with condenser pipe 7, when carrying out the radiating process, get into in condenser pipe 7 behind the steam circulation, condenser pipe 7 position is in heat dissipation fan 6 below, through the cold air influence, steam will carry out the partial liquefaction, become the liquefaction water, carry out the one-way draft by circulating pump 4 afterwards and take out water to water tank 2 in, carry out the hydrologic cycle.

In contrast, in the injection molding process of the movable mold 5 of the injection molding machine, in order to ensure that the raw material of the injection molding part is in a liquid state to achieve the purpose of injection molding, a heating device needs to be arranged on the contact surface of the movable mold 5 and the fixed mold 10 to continuously heat the temperature, so that the raw material is in a liquid state to be processed, but in this case, the temperature in the movable mold 5 is too high, the workpiece is not molded or molded slowly for a long time after injection molding is completed, and the plastic deformation of the workpiece is caused by insufficient cooling, so that the quality requirement on the workpiece cannot be met;

the temperature reduction of the movable mold 5 is carried out through a temperature reduction mechanism arranged inside the movable mold 5, a water inlet 12 is arranged on the upper surface of the movable mold 5, the water inlet 12 is connected with an annular circulating water pipe 13, the heat dissipation work in the moving mold 5 is carried out through the annular circulating water pipe 13, and as the whole size of the circulating water pipe 13 is longer, the heat absorption functionality is stronger, a water outlet 16 is arranged at the end part of the circulating water pipe 13 to discharge water in the circulating water pipe 13, a collecting box 15 is arranged at the side of the water outlet 16 to collect large-particle impurities, in order to prevent the water stain from blocking the water outlet 16 when the water stain in the circulating water pipe 13 is cleaned, when the water stain is blocked by the baffle plate 11 and the cleaning work in the circulating water pipe 13 is required, when the baffle 11 descends, the push rod 17 pushes the baffle 11 to move and compress the cleaning ball 19, and the cleaning agent is sent to the water outlet nozzle 20 by the cleaning ball 19 to perform circulating cleaning in the circulating water pipe 13.

Set up a plurality of round holes 14 between movable mould 5 and circulating pipe 13, can increase the radiating efficiency, steam passes through round hole 14 and directly contacts with circulating pipe 13 to cool down and handle.

Furthermore, a filter screen is installed inside the circulating water pipe 13 to filter internal impurities, so as to prevent the water outlet 16 from being blocked.

In the working process of the injection molding machine, the injection molding can be carried out after a set of template is replaced, but the size of a workpiece is not fixed, and the inbox 8 in the injection molding machine cannot be used universally for the size and the model of the workpiece, so that the inbox 8 has an interference problem and cannot play a due role;

in order to adapt to workpieces with various sizes, the inbox 8 is designed to be of a telescopic structure, the first connecting plate 22, the second connecting plate 25, the third connecting plate 24 and the fourth connecting plate 26 are arranged inside the inbox 8, when the workpieces are small, the connecting plates are sleeved together, when the sizes are required to be increased, the connecting plates are connected together in a telescopic clamping mode, in order to guarantee limiting between the connecting plates, clamping grooves are formed in the end portions of the connecting plates and are connected with the clamping plates 21 in a clamping mode for limiting, the inbox 8 is connected with the injection molding machine through bolts, and the position of the inbox 8 is maintained to be fixed.

Furthermore, an expansion bolt is arranged at the end part of the connecting plate, so that good clamping work can be carried out.

The utility model has the following working principle:

carry out the radiating work of injection molding machine through two cooling system of forced air cooling and water-cooling, discharge after absorbing the heat through cooling fan 6 and carry out the inside longitudinal direction heat dissipation of injection molding machine, and encircle the injection molding machine through 2 pump water outlet pipes 3 of water tank and carry out the transverse direction heat dissipation, for the life of extension movable mould 5, can install cooling mechanism at movable mould 5, carry out holistic movable mould 5 cooling through circulating pipe 13, thereby guarantee work piece production quality, water stain clearance work in circulating pipe 13 is carried out through the sanitizer in the cleaning ball 19, install inbox 8 at movable mould 5 below at last and carry out work piece collection work, cooperation through between the connecting plate, lengthen the holistic length of inbox 8, make the practicality of inbox 8 stronger.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. The efficient cooling device for the injection mold is characterized by comprising an injection molding machine body, a heat dissipation device arranged on the side surface of the injection molding machine body, a movable mold arranged in the injection molding machine body, a fixed mold matched with the movable mold, and an inbox arranged below the movable mold;

2. The efficient cooling device for injection molds of claim 1, wherein the air cooling mechanism comprises a heat dissipating port disposed above the injection molding machine body, a heat dissipating channel connected with the heat dissipating port, and a heat dissipating fan fixedly connected with the bottom of the heat dissipating channel, and the head of the heat dissipating fan can swing.

3. The efficient cooling device for injection molds as claimed in claim 2, wherein the heat dissipating port is formed in a bell mouth shape as a whole, and the annular wind deflector is arranged inside the heat dissipating channel.

4. The efficient cooling device for the injection mold according to claim 1, wherein the water cooling mechanism comprises a water tank disposed at a side surface of the heat dissipation fan, a water outlet pipe screwed with the water tank, and a condensation pipe fixedly connected with the water outlet pipe, wherein the water outlet pipe is disposed inside an inner wall of the injection molding machine body.

5. An efficient cooling apparatus for an injection mold as claimed in claim 4, wherein said condensation duct is connected to said water tank, and a circulation pump is provided between said condensation duct and said water tank and connected to said condensation duct and said water tank.

6. The efficient cooling device for the injection mold according to claim 1, wherein the movable mold is internally provided with a cooling mechanism, the cooling mechanism comprises a water inlet arranged above the movable mold and a circulating water pipe fixedly connected with the water inlet, the other end of the circulating water pipe is provided with a water outlet, the side of the water outlet is provided with a collecting box, and a baffle plate is arranged between the water outlet and the collecting box.

7. The efficient cooling device for the injection mold according to claim 6, wherein the baffle is provided with a hollow structure inside, the baffle is provided with a push rod inside, a pressure plate fixedly connected with the push rod, a cleaning ball arranged on the side surface of the pressure plate, and a water outlet nozzle connected with the cleaning ball pipe.