CN210651640U

CN210651640U - Injection mold with preheat function

Info

Publication number: CN210651640U
Application number: CN201920962962.3U
Authority: CN
Inventors: 代传森
Original assignee: Kunshan Shishuo Precision Mould Co Ltd
Current assignee: Kunshan Shishuo Precision Mould Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-06-02
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses an injection mold with preheat function, including cover half and movable mould, the cover half is located the top of movable mould, the first shaping die holder of lower fixed surface of cover half is connected with, first chamber of moulding plastics has been seted up to the lower surface of first shaping die holder, the last fixed surface of movable mould is connected with second shaping die holder, the second chamber of moulding plastics has been seted up to the upper surface of second shaping die holder, the lower surface in second chamber of moulding plastics is equipped with the inserts mounting groove, one side of inserts mounting groove is equipped with the inductive probe mounting groove, the internal fixed surface of inserts mounting groove installs metal insert. The utility model provides an injection mold possesses the inserts and preheats the function, avoids people to carry out the trouble of preheating with the help of other equipment in addition, promotes work efficiency greatly, preheats the structure simultaneously and possesses the temperature monitoring function, and the people of being convenient for heat metal insert to predetermined temperature numerical value, and is comparatively practical.

Description

Injection mold with preheat function

Technical Field

The utility model relates to an injection mold technical field especially relates to an injection mold with preheat function.

Background

At present, when an injection mold produces thermoplastic plastics for molding, a metal insert is preheated to a temperature close to that of a material, and the high-temperature metal insert aims to reduce the difference of contraction values when metal and the plastic are cooled, so that the contraction stress generated around the insert due to the difference of linear expansion coefficients of the metal and the plastic is reduced. The shrinkage stress is one of internal stresses which are easily formed in an injection molding part, the existence of the internal stress is an important reason for cracks and strength reduction of the injection molding part of the metal insert, however, when the existing injection mold is used, certain disadvantages exist, for example, the existing injection mold is single in function and does not have the function of preheating the metal insert, people are required to put the metal insert into a heating oven or other heating equipment in advance to preheat in advance, then the metal insert which is preheated to a certain temperature is installed in the injection mold, the operation is troublesome, the work efficiency is reduced, and certain adverse effects are caused in the actual use process, so the injection mold with the preheating function is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an injection mold with preheating function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an injection mold with a preheating function comprises a fixed mold and a movable mold, wherein the fixed mold is positioned above the movable mold, a first molding mold base is fixedly connected to the lower surface of the fixed mold, a first injection molding cavity is formed in the lower surface of the first molding mold base, a second molding mold base is fixedly connected to the upper surface of the movable mold, a second injection molding cavity is formed in the upper surface of the second molding mold base, an insert mounting groove is formed in the lower surface of the second injection molding cavity, an induction probe mounting groove is formed in one side of the insert mounting groove, a metal insert is fixedly mounted on the inner surface of the insert mounting groove, a temperature sensing probe is fixedly mounted on the inner surface of the induction probe mounting groove, a preheating jacket is fixedly sleeved on the outer surface of the second molding mold base, a hot oil inlet pipe is fixedly connected to one end of the preheating jacket, and an, the lower surface fixed mounting of movable mould has the mount pad, one side outer wall fixed mounting of mount pad has the digital display thermometer, the bottom inner wall fixed mounting of mount pad has the pneumatic cylinder.

Preferably, the upper end of the hydraulic cylinder is movably provided with a material ejecting push rod, the upper end of the material ejecting push rod penetrates through the lower surface of the metal insert, and the metal insert is in contact with the temperature sensing probe.

Preferably, a runner is arranged on the inner surface of the top of the first molding die holder, an injection molding opening is arranged on the inner surface of the fixed die, and the injection molding opening is communicated with the first injection molding cavity through the runner.

Preferably, the edge positions of two sides of the inner surface of the movable mold are movably sleeved with guide rods, and the upper ends of the two guide rods are fixedly connected with the fixed mold.

Preferably, the outer surfaces of the hot oil inlet pipe and the oil outlet pipe are respectively provided with a switch valve.

Preferably, the type of the digital display thermometer is DT1311, and the output end of the temperature sensing probe is electrically connected with the input end of the digital display thermometer.

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

1. in the utility model, by arranging the insert mounting groove, the preheating jacket, the hot oil inlet pipe and the oil outlet pipe, a metal insert preheating structure is added to the injection mold, so that the injection mold has an insert preheating function, the trouble that people preheat by means of other equipment is avoided, and the working efficiency is greatly improved;

2. the utility model discloses in, through setting up inductive probe mounting groove, temperature sensing probe and digital display thermometer, increased temperature monitoring devices for preheating the structure, and then make people can be to the condition real-time supervision that the inserts preheated, and then be convenient for people to heat the metal inserts to preset temperature numerical value, comparatively practical;

to sum up, the utility model provides an injection mold possesses the inserts and preheats the function, avoids people to carry out the trouble of preheating with the help of other equipment in addition, promotes work efficiency greatly, preheats the structure simultaneously and possesses the temperature monitoring function, and the people of being convenient for heat metal insert to predetermined temperature value, and is comparatively practical.

Drawings

Fig. 1 is a schematic structural view of an injection mold with preheating function according to the present invention;

fig. 2 is a schematic view of the connection between the second forming mold seat and the preheating jacket of the injection mold with preheating function provided by the present invention.

In the figure: the device comprises a fixed die 1, a moving die 2, a first forming die holder 3, a first injection molding cavity 4, a second forming die holder 5, a second injection molding cavity 6, an insert mounting groove 7, an induction probe mounting groove 8, a metal insert 9, a temperature-sensing probe 10, a preheating jacket 11, a hot oil inlet pipe 12, an oil outlet pipe 13, a mounting seat 14, a digital display thermometer 15, a hydraulic cylinder 16, a material ejection push rod 17, a runner 18, an injection molding opening 19, a guide rod 20 and a switch valve 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an injection mold with preheating function comprises a fixed mold 1 and a movable mold 2, the fixed mold 1 is located above the movable mold 2, a first molding base 3 is fixedly connected to the lower surface of the fixed mold 1, a first injection cavity 4 is formed in the lower surface of the first molding base 3, a second molding base 5 is fixedly connected to the upper surface of the movable mold 2, a second injection cavity 6 is formed in the upper surface of the second molding base 5, an insert mounting groove 7 is formed in the lower surface of the second injection cavity 6, an induction probe mounting groove 8 is formed in one side of the insert mounting groove 7, a metal insert 9 is fixedly mounted on the inner surface of the insert mounting groove 7, a temperature sensing probe 10 is fixedly mounted on the inner surface of the induction probe mounting groove 8, a preheating jacket 11 is fixedly connected to the outer surface of the second molding base 5, a hot oil inlet pipe 12 is fixedly connected to one end of the preheating jacket 11, the lower surface of the movable mold 2 is fixedly provided with an installation seat 14, the outer wall of one side of the installation seat 14 is fixedly provided with a digital display thermometer 15, and the inner wall of the bottom of the installation seat 14 is fixedly provided with a hydraulic cylinder 16.

The upper end of the hydraulic cylinder 16 is movably provided with a material ejecting push rod 17, the upper end of the material ejecting push rod 17 penetrates through the lower surface of the metal insert 9, the metal insert 9 is in contact with the temperature sensing probe 10, the inner surface of the top of the first forming die holder 3 is provided with a runner 18, the inner surface of the fixed die 1 is provided with an injection molding port 19, the injection molding port 19 is communicated with the first injection molding cavity 4 through the runner 18, the edge positions of two sides of the inner surface of the movable die 2 are movably sleeved with guide rods 20, the upper ends of the two guide rods 20 are fixedly connected with the fixed die 1, the outer surfaces of the hot oil inlet pipe 12 and the oil outlet pipe 13 are respectively provided with a switch valve 21, the digital display thermometer 15 is in a DT1311 model, and the output.

The working principle is as follows: when the preheating device is used, the metal insert 9 to be preheated is installed in the insert installation groove 7, then the switch valve 21 is opened, high-temperature hot oil required for preheating is heated in the hot oil inlet pipe 12, after the high-temperature hot oil enters the preheating jacket 11, the temperature is conducted into the metal insert 9 of the insert installation groove 7 through the second forming die holder 5, the metal insert 9 is heated and preheated, meanwhile, the temperature sensing probe 10 in the sensing probe installation groove 8 sends a sensed temperature signal which is in contact with the metal insert 9 to the digital display thermometer 15 and is displayed through the display screen of the digital display thermometer 15, people can know the temperature to which the metal insert is heated conveniently, when the temperature rises to a preset value, people open the switch valve 21 on the outer surface of the oil outlet pipe 13, discharge the high-temperature hot oil in the preheating jacket 11, the preheating process of the metal insert 9 is completed, then the injection molding opening 19 is filled with material, and the fixed die 1 and the movable die 2 are closed, let plastics melt and metal insert 9 contact, the last cooling back die sinking opens pneumatic cylinder 16, and it is ejecting with the work piece after the shaping to let liftout push rod 17, realizes the drawing of patterns, the utility model provides an injection mold possesses the inserts and preheats the function, avoids people to carry out the trouble of preheating with the help of other equipment in addition, promotes work efficiency greatly, preheats the structure simultaneously and possesses the temperature monitoring function, and the people of being convenient for heat metal insert 9 to predetermined temperature numerical value, and is comparatively practical.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an injection mold with preheat function, includes cover half (1) and movable mould (2), its characterized in that, cover half (1) is located the top of movable mould (2), the first shaping die holder (3) of lower fixed surface of cover half (1), first injection molding chamber (4) have been seted up to the lower surface of first shaping die holder (3), the last fixed surface of movable mould (2) is connected with second shaping die holder (5), second injection molding chamber (6) have been seted up to the upper surface of second shaping die holder (5), the lower surface of second injection molding chamber (6) is equipped with insert mounting groove (7), one side of insert mounting groove (7) is equipped with inductive probe mounting groove (8), the internal surface fixed mounting of insert mounting groove (7) has metal insert (9), the internal surface fixed mounting of inductive probe mounting groove (8) has temperature sensing probe (10), the outer surface of the second forming die holder (5) is fixedly sleeved with a preheating jacket (11), one end of the preheating jacket (11) is fixedly connected with hot oil inlet pipe (12), the other end of the preheating jacket (11) is fixedly connected with oil outlet pipe (13), the lower surface of the moving die (2) is fixedly provided with a mounting seat (14), the outer wall of one side of the mounting seat (14) is fixedly provided with a digital display thermometer (15), and the inner wall of the bottom of the mounting seat (14) is fixedly provided with a hydraulic cylinder (16).

2. The injection mold with the preheating function according to claim 1, wherein an ejection push rod (17) is movably mounted at the upper end of the hydraulic cylinder (16), the upper end of the ejection push rod (17) penetrates through the lower surface of the metal insert (9), and the metal insert (9) is in contact with the temperature sensing probe (10).

3. The injection mold with the preheating function according to claim 1, wherein a runner (18) is formed in the inner surface of the top of the first molding die holder (3), an injection port (19) is formed in the inner surface of the fixed die (1), and the injection port (19) is communicated with the first injection cavity (4) through the runner (18).

4. The injection mold with the preheating function according to claim 1, wherein guide rods (20) are movably sleeved at the edge positions of two sides of the inner surface of the movable mold (2), and the upper ends of the two guide rods (20) are fixedly connected with the fixed mold (1).

5. An injection mold with preheating function according to claim 1, characterized in that the outer surfaces of the hot oil inlet pipe (12) and the oil outlet pipe (13) are provided with switch valves (21).

6. The injection mold with the preheating function according to claim 1, wherein the digital display thermometer (15) is DT1311, and the output end of the temperature sensing probe (10) is electrically connected with the input end of the digital display thermometer (15).