CN218615309U

CN218615309U - Temperature control mechanism for injection mold

Info

Publication number: CN218615309U
Application number: CN202223091563.5U
Authority: CN
Inventors: 赵艳; 朱春明
Original assignee: Jiangsu Fushun Tianzhizao Technology Co ltd
Current assignee: Jiangsu Fushun Tianzhizao Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-14
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a temperature control mechanism for an injection mold, which relates to the technical field of injection molds and comprises a mold operating platform and a mold temperature control unit; an injection molding ejection unit is arranged in the mold operating platform, a PLC is arranged on the mold operating platform, and the input end of the PLC is electrically connected with the output end of an external power supply; the mould temperature control unit comprises a water heater, a water pump, a water pipe, a heating box, a water storage cavity, a return pipe, a supporting plate, a cooling ring, an air dispersing cavity, an air outlet, an air conveying pipe and an air cooler, wherein the water heater, the water pump, the heating box and the air cooler are all arranged on the upper surface of the mould operating platform, the water outlet end of the water heater is connected with the water inlet end of the water pump, the water outlet end of the water pump is connected with one end of the water pipe, and the other end of the water pipe is connected with the water storage cavity. The utility model discloses can keep warm to injection mold for injection mold is in the best temperature of moulding plastics, guarantees the quality of moulding plastics, and can carry out rapid cooling to the injection mold after moulding plastics.

Description

Temperature control mechanism for injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is a temperature control mechanism for injection mold.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. Injecting the heated and melted plastic into a mold cavity at high pressure by an injection molding machine, and cooling and solidifying to obtain a formed product; when the injection mold is used, the temperature of the injection mold needs to be controlled, and because the temperature of the injection mold is lower than that of an injection solution, the injection solution is cooled and solidified in advance after entering the injection mold, so that the injection quality is influenced;

the chinese utility model patent with publication number CN207669722U in the prior art discloses an injection mold temperature control device, which comprises a heat exchange box, a cold water pipe, a water supply pipe, a backwater inlet hose, a backwater outlet hose, a serpentine heat exchange pipe and a lifting drive device; the cold water pipe and the water supply pipe are respectively connected with the left end and the right end of the heat exchange box; the bottom of the heat exchange box is provided with a plurality of through holes; the straight line part of the snakelike heat exchange tube can vertically slide to penetrate through the through hole and is in sealing contact with the through hole; two ends of the serpentine heat exchange tube are positioned outside the heat exchange box; the backwater water inlet hose and the backwater water outlet hose are respectively connected with two ends of the serpentine heat exchange tube; the lifting driving device is in transmission connection with the snakelike heat exchange tube and is used for driving the snakelike heat exchange tube to move up and down relative to the heat exchange box;

it only cools off injection mold, and then injection mold generally also can preheat in advance when using in injection molding, and current injection mold also heats in advance and preheats, but such mode is unfavorable for keeping warm to injection mold, and injection mold can cool down the quality of influencing moulding plastics among the injection molding process, for this reason, we propose a temperature control mechanism for injection mold.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a temperature control mechanism for injection mold, can keep warm to injection mold for injection mold is in the best temperature of moulding plastics, guarantees the quality of moulding plastics, and can carry out rapid cooling to injection mold after moulding plastics, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a temperature control mechanism for an injection mold comprises a mold operating platform and a mold temperature control unit;

a mold operating table: the injection molding ejection unit is arranged in the mold, the mold operating table is provided with a PLC (programmable logic controller), and the input end of the PLC is electrically connected with the output end of an external power supply;

a mold temperature control unit: include hot-water machine, water pump, raceway, heating cabinet, water storage chamber, back flow, backup pad, cooling ring, scattered wind chamber, exhaust vent, defeated tuber pipe and air-cooler, hot-water machine, water pump, heating cabinet and air-cooler all set up the upper surface at the mould operation panel, and the water inlet end of water pump is connected to the play water end of hot-water machine, the one end of raceway is connected to the play water end of water pump, the water storage chamber is connected to the other end of raceway, the water storage chamber is connected to the water storage chamber setting in the heating cabinet, be provided with the mould body in the heating cabinet, the water inlet end and the water storage chamber of hot-water machine are connected respectively to the both ends of back flow, be provided with the backup pad on the heating cabinet, be provided with the cooling ring in the backup pad, be provided with scattered wind chamber in the cooling ring, the equidistance is provided with the exhaust vent on the cooling ring, exhaust vent intercommunication scattered wind chamber, the air outlet end of scattered wind chamber and air-cooler is connected respectively to the both ends of defeated tuber pipe, the input electric connection PLC's of hot-water machine, water pump and air-cooler output.

The mold body is placed into the heating box through the cooling ring, the temperature required to be kept during injection molding of the mold body is controlled as required, the water is heated to a specific temperature through the water heater controlled by the PLC, hot water generated by the water heater enters the water pump controlled by the PLC to work, the water pump conveys hot water into the water storage cavity through the water conveying pipe, the mold body in the heating box is heated and insulated through the hot water, so that the mold body is at the optimal injection molding temperature, the hot water after heat exchange is conveyed into the water heater through the backflow pipe to be recycled, waste is reduced, the mold body is subjected to injection molding, after injection molding is completed, the mold body is moved into the cooling ring through the injection molding ejection unit, the air cooler is controlled by the PLC to work, the cold air is conveyed into the air dissipation cavity through the air conveying pipe by the air cooler and is blown out of the mold body through the air outlet, blown cold air is taken away heat on the mold body, so that the mold body is quickly cooled, and the mold body is moved out of the cooling ring through the injection molding unit.

Further, the ejecting unit of injection molding includes installation cavity, electric putter, slide bar and sliding sleeve, the installation cavity sets up in the mould operation panel, is provided with electric putter in the installation cavity, electric putter's flexible end is connected with the slide bar, the both ends of sliding sleeve set up respectively in heating cabinet and installation cavity, slide bar sliding connection sliding sleeve and mould body, the output of PLC controller is connected to electric putter's input electricity. After the mould body is moulded plastics and is accomplished, through PLC controller control electric putter work, electric putter drives the slide bar and removes, and the slide bar drives the mould body and removes to make the mould body remove in the cooling ring from the heating cabinet, and shift out the cooling ring to the mould body after the cooling.

Furthermore, still include and lead warm fin, lead warm fin setting at the surface of mould body, lead warm fin sliding connection heating cabinet and cooling ring. The heat exchange speed of the die body is improved through the heat conducting fins, so that the die body is convenient to heat or cool.

Further, still include temperature sensor, temperature sensor sets up in the water storage intracavity, and PLC controller's input is connected to temperature sensor's output electricity. The temperature in the water storage cavity is detected through the temperature sensor, and the detected result is transmitted into the PLC.

Furthermore, the die further comprises guide grooves and guide strips, wherein the guide strips are arranged on two sides of the heating box and the cooling ring, the guide grooves are arranged on two sides of the die body, and the guide grooves are connected with the guide strips in a sliding mode. The die body can be conveniently placed into the heating box and the cooling ring through the guide groove and the guide strip.

Further, still include the display screen, the display screen sets up on the mould operation panel, and the output of PLC controller is connected to the input electricity of display screen. Through the work of PLC controller control display screen, show the temperature of heating cabinet through the display screen, the staff of being convenient for knows the heat retaining temperature of heating in the heating cabinet.

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

1. through the water heater, a water pump, raceway and back flow make the water storage chamber keep throughout there is hot water, thereby make the mould body heat the heat preservation in the heating cabinet, avoid the mould body cooling to influence the quality of moulding plastics, through the cooling ring, the scattered wind chamber, the exhaust vent, defeated tuber pipe and air-cooler carry out the cooling of cooling down fast to the mould body, place the mould body as required and heat the heat preservation or cool down in the cooling ring in the heating cabinet, thereby control the temperature to the injection mould body as required, the convenience of heating or cooling to the mould body has been improved, thereby the better moulds plastics to the mould body, guarantee the quality that the mould body moulded plastics.

2. Drive the mould body through electric putter and slide bar and remove to temperature requirement makes the mould body be in heating cabinet internal heating heat preservation or at cooling ring cooling down when moulding plastics, and can shift out fast the mould body after the cooling of moulding plastics, is convenient for change or the ejection of compact the mould body, has reduced staff's work load.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic sectional view of the present invention.

In the figure: the mold comprises a mold operation table 1, a mold temperature control unit 2, a hot water machine 21, a water pump 22, a water delivery pipe 23, a heating box 24, a water storage cavity 25, a return pipe 26, a support plate 27, a cooling ring 28, an air dispersing cavity 29, an air outlet 210, an air delivery pipe 211, an air cooler 212, an injection molding ejection unit 3, a mounting cavity 31, an electric push rod 32, a slide rod 33, a slide sleeve 34, a mold body 4, a PLC (programmable logic controller) 5, a temperature guide fin 6, a temperature sensor 7, a guide groove 8, a guide strip 9 and a display screen 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: a temperature control mechanism for an injection mold comprises a mold operating platform 1 and a mold temperature control unit 2;

mold operation table 1: an injection molding ejection unit 3 is arranged in the mold, a PLC (programmable logic controller) 5 is arranged on the mold operating table 1, and the input end of the PLC 5 is electrically connected with the output end of an external power supply;

the mold temperature control unit 2: including hot-water machine 21, water pump 22, raceway 23, heating cabinet 24, water storage cavity 25, back flow 26, backup pad 27, cooling ring 28, the wind cavity 29 looses, exhaust vent 210, air delivery pipe 211 and air-cooler 212, hot-water machine 21, water pump 22, heating cabinet 24 and air-cooler 212 all set up the upper surface at mould operation panel 1, the water outlet end of hot-water machine 21 connects the inlet end of water pump 22, the one end of raceway 23 is connected to the water outlet end of water pump 22, the other end of raceway 23 connects water storage cavity 25, water storage cavity 25 sets up in heating cabinet 24, be provided with mould body 4 in the heating cabinet 24, the inlet end and the water storage cavity 25 of hot-water machine 21 are connected respectively to the both ends of back flow 26, be provided with backup pad 27 on heating cabinet 24, be provided with cooling ring 28 on the backup pad 27, be provided with the wind cavity 29 in the cooling ring 28, equidistant air outlet 210 that is provided with of air outlet, the wind cavity 29 that looses communicates with air-releasing cavity 29, the both ends of wind cavity 211 are connected respectively to the both ends of wind cavity 29 and air-cooling fan 212, hot-water machine 21, the electrical connection of water pump 22 and the output of PLC control unit 212.

Placing the mould body 4 into the heating box 24 through the cooling ring 28, the temperature that needs to be kept is moulded plastics to mould plastics to the mould body 4 as required, control hot-water machine 21 through PLC controller 5 and heat water to specific temperature, hot water that hot-water machine 21 produced enters into water pump 22, control water pump 22 work through PLC controller 5, water pump 22 carries hot water into water storage cavity 25 through raceway 23, mould body 4 in the heating box 24 is heated and keeps warm through hot water, thereby make mould body 4 be in the best temperature of moulding plastics, hot water after the heat transfer carries into hot-water machine 21 through back flow 26 and recycles, reduce the waste, mould body 4 moulds plastics, after moulding plastics, remove mould body 4 to cooling ring 28 through injection molding ejection unit 3, control air-cooler 212 work through PLC controller 5, air-cooler 212 carries cold air into scattered wind chamber 29 through air duct 211, and blows off on mould body 4 through exhaust vent 210, the cold wind that blows off carries out on mould body 4, thereby take away mould body 4 fast, the cooling ring that the back injection molding plastics that 3 moved out cooling ring 28 again.

Ejecting unit 3 of injection molding includes installation cavity 31, electric putter 32, slide bar 33 and sliding sleeve 34, installation cavity 31 sets up in mould operation panel 1, be provided with electric putter 32 in the installation cavity 31, electric putter 32's flexible end is connected with slide bar 33, sliding sleeve 34's both ends set up respectively in heating cabinet 24 and installation cavity 31, slide bar 33 sliding connection sliding sleeve 34 and mould body 4, PLC controller 5's output is connected to electric putter 32's input electricity. After the injection molding of the mold body 4 is completed, the electric push rod 32 is controlled to work through the PLC 5, the electric push rod 32 drives the slide rod 33 to move, the slide rod 33 drives the mold body 4 to move, so that the mold body 4 moves into the cooling ring 28 from the heating box 24, and the cooled mold body 4 moves out of the cooling ring 28.

The mould further comprises a temperature conduction fin 6, wherein the temperature conduction fin 6 is arranged on the outer surface of the mould body 4, and the temperature conduction fin 6 is connected with the heating box 24 and the cooling ring 28 in a sliding mode. The heat exchange speed of the die body 4 is improved through the heat conducting fins 6, so that the interior of the die body 4 is convenient to heat or cool.

Still include temperature sensor 7, temperature sensor 7 sets up in water storage cavity 25, and PLC controller 5's input is connected to temperature sensor 7's output electricity. The temperature in the water storage cavity 25 is detected by the temperature sensor 7, and the detected result is transmitted into the PLC 5.

The die further comprises guide grooves 8 and guide strips 9, wherein the guide strips 9 are arranged on two sides of the interior of the heating box 24 and the interior of the cooling ring 28, the guide grooves 8 are arranged on two sides of the die body 4, and the guide grooves 8 are connected with the guide strips 9 in a sliding mode. The placement of the mould body 4 into the heating box 24 and the cooling ring 28 is facilitated by the guide grooves 8 and the guide strips 9.

Still include display screen 10, display screen 10 sets up on mould operation panel 1, and the output of PLC controller 5 is connected to the input electricity of display screen 10. Through the work of PLC controller 5 control display screen 10, show the temperature in heating cabinet 24 through display screen 10, the staff of being convenient for knows the heat retaining temperature of heating in heating cabinet 24.

The utility model provides a pair of temperature control mechanism for injection mold's theory of operation as follows: when injection molding is carried out, the mold body 4 is placed into the heating box 24 through the cooling ring 28 by the guide groove 8 and the guide strip 9, according to the temperature required to be kept by injection molding of the mold body 4, the PLC 5 controls the water heater 21 to heat water to a specific temperature, hot water generated by the water heater 21 enters the water pump 22, the PLC 5 controls the water pump 22 to work, the water pump 22 conveys hot water into the water storage cavity 25 through the water pipe 23, the temperature in the water storage cavity 25 is detected by the temperature sensor 7, and the detected result is transmitted into the PLC 5, the PLC 5 controls the display screen 10 to work, the temperature in the heating box 24 is displayed through the display screen 10, so that the temperature for heating and heat preservation in the heating box 24 can be conveniently known by the working personnel, the heat exchange speed of the die body 4 is improved through the heat conduction fins 6, the die body 4 in the heating box 24 is heated and insulated through hot water, so that the mould body 4 is at the optimum injection temperature, the hot water after heat exchange is conveyed into the hot water machine 21 through the return pipe 26 for recycling, the mould body 4 is subjected to injection moulding, after the injection moulding is finished, the PLC 5 controls the electric push rod 32 to work, the electric push rod 32 drives the slide bar 33 to move, the slide bar 33 drives the die body 4 to move, so that the mold body 4 moves from the heating box 24 to the cooling ring 28, the PLC 5 controls the air cooler 212 to work, the air cooler 212 conveys cold air into the air dispersing cavity 29 through the air conveying pipe 211, and is blown out of the die body 4 through the air outlet 210, the blown cold air carries away the heat on the die body 4, thereby carry out rapid cooling to mould body 4, again through PLC controller 5 control electric putter 32 continuation removal to mould body 4 after the cooling shifts out cooling ring 28.

It is noted that the specific model of the hot water machine 21 disclosed in the above embodiments is KFXRS-070H-GW, the specific model of the water pump 22 is KB-40012PP, the specific model of the air cooler 212 is SAC-65, the specific model of the electric push rod 32 is CY134-R, the specific model of the temperature sensor 7 is WZPT-035, and the specific model of the display screen 10 is st035lmn01.H. The PLC 5 controls the hot water machine 21, the water pump 22, the air cooler 212, the electric push rod 32 and the display screen 10 to work by adopting a method commonly used in the prior art.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a temperature control mechanism for injection mold which characterized in that: comprises a mould operating platform (1) and a mould temperature control unit (2);

mold operating table (1): an injection molding ejection unit (3) is arranged in the mold, a PLC (programmable logic controller) (5) is arranged on the mold operating table (1), and the input end of the PLC (5) is electrically connected with the output end of an external power supply;

mold temperature control unit (2): comprises a water heater (21), a water pump (22), a water delivery pipe (23), a heating box (24), a water storage cavity (25), a return pipe (26), a support plate (27), a cooling ring (28), an air dispersing cavity (29), an air outlet (210), an air delivery pipe (211) and an air cooler (212), wherein the water heater (21), the water pump (22), the heating box (24) and the air cooler (212) are all arranged on the upper surface of a mold operating platform (1), the water outlet end of the water heater (21) is connected with the water inlet end of the water pump (22), the water outlet end of the water pump (22) is connected with one end of the water delivery pipe (23), the other end of the water delivery pipe (23) is connected with the water storage cavity (25), the water storage cavity (25) is arranged in the heating box (24), a mold body (4) is arranged in the heating box (24), the two ends of the return pipe (26) are respectively connected with the water inlet end of the air outlet (21) and the water storage cavity (25), the support plate (27) is arranged on the heating box (24), the support plate (27) is provided with the cooling ring (28), the air dispersing cavity (29) is arranged in the air dispersing cavity (29), and the air dispersing cavity (210) is communicated with the air outlet (29), the two ends of the air conveying pipe (211) are respectively connected with the air outlet ends of the air dispersing cavity (29) and the air cooler (212), and the input ends of the water heater (21), the water pump (22) and the air cooler (212) are electrically connected with the output end of the PLC (5).

2. The temperature control mechanism for the injection mold according to claim 1, characterized in that: injection molding ejection unit (3) include installation cavity (31), electric putter (32), slide bar (33) and sliding sleeve (34), installation cavity (31) set up in mould operation panel (1), are provided with electric putter (32) in installation cavity (31), the flexible end of electric putter (32) is connected with slide bar (33), the both ends of sliding sleeve (34) set up respectively in heating cabinet (24) and installation cavity (31), slide bar (33) sliding connection sliding sleeve (34) and mould body (4), the output of PLC controller (5) is connected to the input electricity of electric putter (32).

3. The temperature control mechanism for the injection mold according to claim 1, characterized in that: still including leading warm fin (6), lead warm fin (6) and set up the surface at mould body (4), lead warm fin (6) sliding connection heating cabinet (24) and cooling ring (28).

4. The temperature control mechanism for the injection mold according to claim 1, characterized in that: still include temperature sensor (7), temperature sensor (7) set up in water storage chamber (25), and the input of PLC controller (5) is connected to the output electricity of temperature sensor (7).

5. The temperature control mechanism for the injection mold according to claim 1, characterized in that: still include guide way (8) and gib block (9), gib block (9) set up the inside both sides at heating cabinet (24) and cooling ring (28), guide way (8) set up the both sides at mould body (4), guide way (8) sliding connection gib block (9).

6. The temperature control mechanism for the injection mold according to claim 1, characterized in that: still include display screen (10), display screen (10) set up on mould operation panel (1), and the output of PLC controller (5) is connected to the input electricity of display screen (10).