CN213972425U

CN213972425U - Control device for ultrahigh mold temperature of injection mold

Info

Publication number: CN213972425U
Application number: CN202022748724.8U
Authority: CN
Inventors: 高超
Original assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Current assignee: Zhejiang Teng Feng Hardware Plastic Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-08-17
Anticipated expiration: 2030-11-24

Abstract

The application relates to a control device for ultrahigh mold temperature of an injection mold, which relates to the field of injection molding and comprises a heating module and a rotating module for driving the heating module to rotate, wherein the heating module comprises a heating rod and a power supply for supplying power to the heating rod, and the heating rod is positioned on one side of a second mold, which is far away from a first mold; when the injection molding is completed, the rotating module drives the heating rod to be far away from the second mold. During injection molding, the first mold is attached to the second mold, the heating rod heats the second mold, so that the second mold keeps a certain temperature, and when molten plastic enters the cavity, the second mold has a certain temperature. The application has the effect of maintaining the temperature of the molten plastic within a certain range during the injection molding process.

Description

Control device for ultrahigh mold temperature of injection mold

Technical Field

The application relates to the field of injection molding, in particular to a control device for ultrahigh mold temperature of an injection mold.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding. Injection molding is accomplished by an injection molding machine and a mold.

A current injection molding machine, as shown in fig. 4, includes a first mold 11, a second mold 12, an injection module 13, and a driving module 14 for driving the second mold 12 away from or close to the first mold 11. The side of the first mold 11 facing the second mold 12 and the side of the second mold 12 facing the first mold 11 are both provided with grooves. When the first mold 11 and the second mold 12 are attached, a cavity is formed between the first mold 11 and the second mold 12, the injection module 13 melts the plastic and applies high pressure to inject the plastic to fill the cavity, and after the molds are cooled, the driving module 14 drives the second mold 12 to be far away from the first mold 11, and the molded plastic falls off from the second mold 12.

In the related art, when a product with a larger shape needs to be injection molded, the temperature of the molten plastic decreases during the process of diffusing from the middle of the cavity to the edge due to the lack of insulation measures around the first mold 11 and the second mold 12, and the inventor believes that the temperature decrease causes the molten plastic to harden prematurely, thereby causing poor injection molding quality of the product.

SUMMERY OF THE UTILITY MODEL

In order to maintain the temperature of the molten plastic in a certain range during the injection molding process, the application provides a control device for the ultrahigh mold temperature of an injection mold.

The application provides a controlling means for injection mold superelevation mould temperature adopts following technical scheme:

a control device for ultrahigh mold temperature of an injection mold comprises a heating module and a rotating module for driving the heating module to rotate, wherein the heating module comprises a heating rod and a power supply for supplying power to the heating rod, and the heating rod is positioned on one side of a second mold, which is far away from a first mold; when the injection molding is completed, the rotating module drives the heating rod to be far away from the second mold.

By adopting the technical scheme, during injection molding, the first mold is attached to the second mold, the heating rod heats the second mold, so that the second mold keeps a certain temperature, and when molten plastic enters the cavity, the molten plastic cannot be cooled and hardened too fast due to the certain temperature of the second mold when being diffused in the cavity; the heating rod is always in an electrified state, when the injection molding is completed, the rotating module drives the heating rod to be far away from the second mold, and the plastic in the cavity is cooled and hardened.

Optionally, the heating rod is equipped with many, the second mould deviates from first mould one side and has seted up the heating groove, the heating groove also is equipped with a plurality ofly, and the heating groove interval sets up, the heating rod sets up in the tank bottom of heating groove.

Through adopting above-mentioned technical scheme, set up the heating bath and make the heating rod be close to the die cavity more to set up a plurality of heating baths and heating rod, improved the efficiency of heating the die cavity, make the die cavity reach the temperature that needs fast, thereby reduce heat time and improved work efficiency.

Optionally, the rotating module comprises an installation block, a rotating shaft penetrating through the installation block, a base for installing the rotating shaft, and a driving device for driving the rotating shaft to rotate, the heating rods are all horizontally arranged and are arranged at intervals, and one ends of the heating rods are all fixed on the installation block; the rotating shaft is vertically arranged, fixedly connected with the mounting block and rotatably connected with the base; the rotating shaft is connected with the driving device.

Through adopting above-mentioned technical scheme, the heating rod all is fixed in on the installation piece for all heating rods can synchronous revolution, and only need a driving source can drive all heating rods and rotate, reduced the cost of manufacture.

Optionally, the driving device includes a full gear vertically fixed to one end of the rotating shaft close to the base, a servo motor vertically fixed to the base, and an incomplete gear vertically fixed to an output shaft of the servo motor, and the full gear is engaged with the incomplete gear.

Through adopting above-mentioned technical scheme, servo motor drive incomplete gear rotates many rings after, full gear rotates 90, has reduced servo motor and has rotated the error that produces, need not to use servo motor of high accuracy promptly to make the installation piece accurate rotation 90, has reduced the cost of manufacture.

Optionally, the heating device further comprises a heat insulation box, wherein the heat insulation box is arranged on one side of the rotating shaft, and a containing groove for containing the heating rod is formed in the heat insulation box; the side wall of the accommodating groove is provided with an insulating layer; after the injection molding is finished, the driving device drives the heating rod to rotate into the accommodating groove.

Through adopting above-mentioned technical scheme, the heating rod is in the on-state always, and the back is accomplished in moulding plastics, and the heating rod is located the holding tank, has reduced the heat that the heating rod diffused to the surrounding environment.

Optionally, be equipped with in the hot box and be used for absorbing the thermal cooling module of heating rod, cooling module sets up many cooling tubes in the hot box, sets up water tank, water pump outside the hot box and is used for the water pipe of connecting, cooling tube, water tank, water pump lead to pipe and communicate in proper order.

Through adopting above-mentioned technical scheme, the heat diffusion that the heating rod produced is to in the cooling tube for the temperature outside the hot box maintains in certain extent, has reduced the heat of diffusion to the hot box outside.

Optionally, the base is provided with a first limiting block and a second limiting block for limiting the rotation angle of the mounting block, and the first limiting block and the second limiting block are both fixed on the base; the mounting block is positioned between the first limiting block and the second limiting block; when the installation piece contradicts in first stopper, the heating stick is located the heating inslot, when the installation piece contradicts in the second stopper, the heating stick is located the holding tank.

Through adopting above-mentioned technical scheme, first stopper and second stopper restriction installation piece's rotation for the installation piece can not rotate too much angle because of inertia.

Optionally, the heating modules are provided in two groups, and the two groups of heating modules are respectively arranged on two sides of the second mold.

Through adopting above-mentioned technical scheme for the tip of heating rod only need to the middle part of heating tank can, the length of heating rod shortens promptly, thereby has reduced the moment of torsion of pivot, and then has protected the pivot.

In summary, the present application includes at least one of the following beneficial technical effects:

1. during injection molding, the heating rod heats the cavity to keep the temperature of the cavity within a certain range;

2. by additionally arranging the heat insulation box, the heat quantity diffused to the periphery by the heating rod is reduced, so that the peripheral equipment is protected.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of an insulated box according to an embodiment of the present application;

FIG. 3 is a schematic view of the overall structure of a rotating module in the embodiment of the present application;

fig. 4 is a schematic view of the overall structure of a related art injection molding machine.

Description of reference numerals: 11. a first mold; 12. a second mold; 121. a heating tank; 13. a material injection module; 14. a drive module; 2. a heating module; 21. a heating rod; 22. a power source; 3. a rotation module; 31. mounting blocks; 32. a rotating shaft; 33. a base; 331. a base plate; 332. a vertical plate; 333. a top plate; 34. a drive device; 341. all-gear; 342. an incomplete gear; 343. a servo motor; 4. a heat insulation box; 41. accommodating grooves; 5. a cooling module; 51. a cooling tube; 52. a water tank; 53. a water pump; 54. a water pipe; 61. a first stopper; 62. and a second limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a control device for ultrahigh mold temperature of an injection mold. Referring to fig. 1 and 2, the control device includes a heating module 2, a rotating module 3 for driving the heating module 2 to rotate, a heat insulation box 4, and a cooling module 5 disposed in the heat insulation box 4. The heating modules 2 are provided in two sets and are respectively provided on both sides of the second mold 12.

Each set of heating module 2 comprises four heating rods 21 and a power supply 22 for supplying power to the heating rods 21, the four heating rods 21 are all horizontally arranged, and the four heating rods 21 are arranged at intervals. One side of the second mold 12 departing from the first mold 11 is provided with a heating groove 121 corresponding to the heating rod 21, and the heating rod 21 is arranged in the heating groove 121, so that the heating rod 21 is close to the cavity, and the heating efficiency is improved. One end of each heating rod 21 in the heating groove 121 is close to the middle of the heating groove 121, that is, the corresponding heating rods 21 in the two sets of heating modules 2 are located in the same heating groove 121, and the end parts of the two heating rods 21 close to each other are in clearance fit.

The rotating modules 3 are provided with two groups, and the heating rods 21 of each group of heating modules 2 are connected with one group of rotating modules 3. The heating rod 21 is slidably fitted with the heating groove 121. The heating rod 21 is positioned in the heating groove 121 during injection molding, so that the temperature of the second mold 12 is kept within a certain range; when the injection molding is completed, the rotating module 3 drives the heating rod 21 to rotate, so that the heating rod 21 leaves the heating groove 121 and leaves the second mold 12.

Referring to fig. 3, the rotating module 3 includes a mounting block 31 for mounting the heating rod 21, a rotating shaft 32 penetrating the mounting block 31, a base 33 for mounting the rotating shaft 32, and a driving device 34 for driving the rotating shaft 32 to rotate. The base 33 includes a bottom plate 331 disposed horizontally, a top plate 333 disposed directly above the bottom plate 331, and a riser 332 connecting the bottom plate 331 and the top plate 333. The rotating shaft 32 is vertically arranged, the top end of the rotating shaft 32 is rotatably connected to the top plate 333, and the bottom plate 331 of the rotating shaft 32 is rotatably connected to the bottom plate 331. The mounting block 31 is vertically arranged, one end of the mounting block 31 is fixedly connected with the rotating shaft 32, and the heating rod 21 is fixed on the side surface of the mounting block 31 far away from the rotating shaft 32.

The driving device 34 includes a full gear 341 vertically fixed to one end of the rotating shaft 32 near the bottom plate 331, a servo motor 343 vertically fixed to the bottom plate 331, and an incomplete gear 342341 vertically fixed to an output shaft of the servo motor 343, the full gear 341 being engaged with the incomplete gear 342341. The incomplete gear 342341 is a quarter gear, that is, when the output shaft of the servo motor 343 rotates one revolution, the rotating shaft 32 only rotates 90 °. Because the servo motor 343 rotates 90 degrees with a large error, the incomplete gear 342 is adopted to reduce the rotation error.

Referring to fig. 1 and 2, a heat insulation box 4 is disposed on one side of each rotating shaft 32, a receiving groove 41 corresponding to the heating rod 21 is disposed on the heat insulation box 4, and a heat insulation layer is disposed in the receiving groove 41. During injection molding, the heating rod 21 is located in the heating groove 121, when injection molding is completed, the output shaft of the servo motor 343 rotates for a circle, the incomplete gear 342 drives the full gear 341 to rotate 90 degrees, the rotating shaft 32 drives the mounting block 31 to rotate 90 degrees, the heating rod 21 rotates to the heating groove 121, and heat of the heating rod 21 diffused to the surrounding environment is reduced.

In order to prevent the temperature in the heat insulating box 4 from becoming too high, a cooling module 5 is provided in the heat insulating box 4. The cooling module 5 includes a plurality of cooling pipes 51 provided in the heat insulating box 4, a water pump 53 provided outside the heat insulating box 4, and a water tank 52, and the cooling pipes 51, the water tank 52, and the water pump 53 are connected in this order by a water pipe 54. The cooling pipes 51 are vertically arranged and spaced apart from each other at an end of the heat insulation box 4 away from the rotating shaft 32.

Referring to fig. 3, in order to prevent the mounting block 31 from rotating too much due to inertia, a first stopper 61 and a second stopper 62 are added, and the mounting block 31 is located between the first stopper 61 and the second stopper 62. When the heating rod 21 is positioned in the heating groove 121, the mounting block 31 abuts against the first limiting block 61; when the heating rod 21 is located in the accommodating groove 41, the mounting block 31 abuts on the second stopper 62.

The implementation principle of the embodiment of the application is as follows: the plastic enters the injection module 13 to melt and apply high pressure, and the heating rod 21 is located in the heating groove 121, and the heating rod 21 is in a power-on state. The injection module 13 injects the molten plastic into the cavity, and the temperature change is not large when the plastic is diffused in the cavity due to the heating of the heating rod 21, so that the injection quality is not poor due to cooling and hardening.

When the molten plastic fills the cavity, the servo motor 343 rotates one revolution to rotate the heating rod 21 by 90 ° into the receiving groove 41. After the plastic in the cavity is cooled, the driving module 14 drives the second mold 12 to move in a direction away from the first mold 11, and the plastic is separated from the second mold 12, thereby completing the manufacture of a product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a controlling means for injection mold superelevation mould temperature which characterized in that: the heating device comprises a heating module (2) and a rotating module (3) for driving the heating module (2) to rotate, wherein the heating module (2) comprises a heating rod (21) and a power supply (22) for supplying power to the heating rod (21), and the heating rod (21) is positioned on one side, away from the first mold (11), of the second mold (12); when the injection molding is finished, the rotating module (3) drives the heating rod (21) to be far away from the second mold (12).

2. The control device for the ultrahigh mold temperature of the injection mold according to claim 1, wherein: heating rod (21) are equipped with many, heating groove (121) have been seted up to second mould (12) one side of deviating from first mould (11), heating groove (121) also are equipped with a plurality ofly, and heating groove (121) interval sets up, heating rod (21) set up in the tank bottom of heating groove (121).

3. The control device for the ultrahigh mold temperature of the injection mold according to claim 2, wherein: the rotating module (3) comprises an installation block (31), a rotating shaft (32) penetrating through the installation block (31), a base (33) used for installing the rotating shaft (32) and a driving device (34) used for driving the rotating shaft (32) to rotate, the heating rods (21) are horizontally arranged and arranged at intervals, and one ends of the heating rods (21) are fixed on the installation block (31); the rotating shaft (32) is vertically arranged, the rotating shaft (32) is fixedly connected with the mounting block (31), and the rotating shaft (32) is rotatably connected with the base (33); the rotating shaft (32) is connected with a driving device (34).

4. The control device for the ultrahigh mold temperature of the injection mold according to claim 3, wherein: the driving device (34) comprises a full gear (341) vertically fixed at one end of the rotating shaft (32) close to the base (33), a servo motor (343) vertically fixed on the base (33) and an incomplete gear (342) vertically fixed on an output shaft of the servo motor (343), and the full gear (341) is meshed with the incomplete gear (342).

5. The control device for the ultrahigh mold temperature of the injection mold according to claim 3, wherein: the heating device is characterized by further comprising a heat insulation box (4), wherein the heat insulation box (4) is arranged on one side of the rotating shaft (32), and an accommodating groove (41) for accommodating the heating rod (21) is formed in the heat insulation box (4); the side wall of the accommodating groove (41) is provided with a heat-insulating layer; after the injection molding is finished, the driving device (34) drives the heating rod (21) to rotate into the accommodating groove (41).

6. The control device for the ultrahigh mold temperature of the injection mold according to claim 5, wherein: be equipped with in heat insulation box (4) and be used for absorbing the thermal cooling module (5) of heating rod (21), cooling module (5) set up many cooling tube (51) in heat insulation box (4), set up water tank (52), water pump (53) outside heat insulation box (4) and be used for water pipe (54) of connecting, cooling tube (51), water tank (52), water pump (53) lead to pipe (54) and communicate in proper order.

7. The control device for the ultrahigh mold temperature of the injection mold according to claim 3, wherein: a first limiting block (61) and a second limiting block (62) which are used for limiting the rotation angle of the mounting block (31) are arranged on the base (33), and the first limiting block (61) and the second limiting block (62) are fixed on the base (33); the mounting block (31) is positioned between the first limiting block (61) and the second limiting block (62); when installation piece (31) contradict in first stopper (61), heating stick (21) are located heating groove (121), when installation piece (31) contradict in second stopper (62), heating stick (21) are located holding tank (41).

8. The control device for the ultrahigh mold temperature of the injection mold according to claim 1, wherein: the heating modules (2) are arranged in two groups, and the two groups of heating modules (2) are respectively arranged on two sides of the second die (12).