CN210415278U

CN210415278U - Feeding heat-preservation energy-saving device for injection molding machine

Info

Publication number: CN210415278U
Application number: CN201920979875.9U
Authority: CN
Inventors: 黄国清; 黄小亮
Original assignee: Foshan Sanshui Shiqin Hardware Plastic Products Co Ltd
Current assignee: Foshan Sanshui Shiqin Hardware Plastic Products Co Ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-04-28
Anticipated expiration: 2029-06-27

Abstract

The utility model discloses a pan feeding heat preservation economizer for injection molding machine, including feed cylinder, cooling water back flow, heat preservation conveyer pipe layer, electromagnetic heater and cooling water conveyer pipe, the feed cylinder center be provided with the pan feeding passageway that the bottom has into the feed cylinder, and the feed cylinder side with the pan feeding barrel side end formation holding chamber of pan feeding passageway, heat preservation conveyer pipe layer and electromagnetic heater all set up in the holding chamber, heat preservation conveyer pipe layer parcel the feed cylinder side, and the heat preservation conveyer pipe layer is connected with cooling water back flow and cooling water conveyer pipe respectively, electromagnetic heater surrounds the heat preservation conveyer pipe layer so that heat to the material in the pan feeding passageway; this pan feeding heat preservation economizer for injection molding machine can improve the heating efficiency and the energy utilization of feed cylinder, reduces the processing cost.

Description

Feeding heat-preservation energy-saving device for injection molding machine

The technical field is as follows:

the utility model relates to an injection molding machine technical field especially relates to a pan feeding heat preservation economizer for injection molding machine.

Background art:

the injection molding process of the injection molding machine is a technological process that after plastic raw materials in a charging barrel of the injection molding machine are heated and melted, the molten plastic is quickly injected into a mold cavity of a closed mold at high pressure by the thrust of a screw rod or a plunger rod arranged in the injection molding machine, and then the finished product is obtained after cooling and solidification. And traditional injection molding machine makes the plastic raw materials heating and melting through the heating of the resistance wire that distributes outside the feed cylinder, but the resistance wire heating has the heat transfer heat energy loss big, the loss is fast, heat time is slow, life is short, maintenance volume big scheduling problem, and the injection molding machine is used for the heat of the high temperature cooling water of cooling feed cylinder feed opening and other positions not utilizing in addition and direct return water pond is used as the recovery, reduces the utilization ratio of the energy.

The utility model has the following contents:

in order to solve the technical problem, the utility model provides a pan feeding heat preservation economizer for injection molding machine, including feed cylinder, cooling water back flow, heat preservation conveyer pipe layer, electromagnetic heater and cooling water conveyer pipe, the feed cylinder center be provided with the pan feeding passageway that the bottom has into the feed cylinder, and the feed cylinder side with the pan feeding barrel side end of pan feeding passageway forms the holding chamber, heat preservation conveyer pipe layer and electromagnetic heater all set up in the holding intracavity, heat preservation conveyer pipe layer parcel go into the feed cylinder side, just heat preservation conveyer pipe layer respectively with cooling water back flow and cooling water duct connections, electromagnetic heater surrounds heat preservation conveyer pipe layer side is so that to heat the material in the pan feeding passageway.

Preferably, the heat preservation conveying pipe layer is formed by surrounding a conveying pipe, a top pipe inlet of the heat preservation conveying pipe layer is connected with the cooling water return pipe so as to introduce the used high-temperature cooling water, and a bottom pipe outlet of the heat preservation conveying pipe layer is connected with the cooling water conveying pipe.

Preferably, go into the feed cylinder be funnel-shaped structure, heat preservation conveyer pipe layer, electromagnetic heater and holding chamber structure with it suits to go into the feed cylinder.

Preferably, the heat preservation conveying pipe layer and the electromagnetic heater are spaced, and a heat insulation layer is arranged on the outer side of the heat preservation conveying pipe layer.

The utility model has the advantages that: this pan feeding heat preservation economizer for injection molding machine adopts electromagnetic heater to replace the resistance wire as heating element, make feed cylinder self generate heat rather than making the feed cylinder generate heat through the heat transfer, reduce heat transfer heat loss, promote rate of heating and efficiency, and can not make ambient temperature rise, be favorable to protecting heating element, high temperature cooling water after the injection molding machine uses in addition passes through the cooling water back flow and gets into the heat preservation conveyer pipe layer and carry out heat transfer to the feed cylinder surface, the insulating layer simultaneously reduces the heat with the cooperation of heat preservation conveyer pipe layer greatly and scatters and disappears, the heating efficiency and the energy utilization ratio of improvement feed cylinder, reduce the processing cost.

Drawings

FIG. 1 is a top view of the present invention;

fig. 2 is a cross-sectional view a-a of fig. 1.

In the figure: the device comprises a material cylinder 1, a cooling water return pipe 2, a heat preservation conveying pipe layer 3, an electromagnetic heater 4, a material feeding channel 5, a material feeding cylinder 6 and a containing cavity 7.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the present invention.

As shown in fig. 1 to 2, a feeding heat-preservation energy-saving device for an injection molding machine comprises a material cylinder 1, a cooling water return pipe 2, a heat-preservation conveying pipe layer 3, an electromagnetic heater 4 and a cooling water conveying pipe (not shown in the figure), wherein a feeding channel 5 with a material inlet at the bottom is arranged in the center of the material cylinder 1, an accommodating cavity 7 is formed by the side end of the material cylinder 1 and the side end of a feeding cylinder 6 of the feeding channel 5, the material inlet is of a funnel-shaped structure, the heat-preservation conveying pipe layer 3 and the electromagnetic heater 4 are both arranged in the accommodating cavity 7, the heat-preservation conveying pipe layer 3 wraps the side end of the material inlet 6, the heat-preservation conveying pipe layer 3 is respectively connected with the cooling water return pipe 2 and the cooling water conveying pipe, specifically, the heat-preservation conveying pipe layer 3 is formed by surrounding the conveying pipe, the top pipe inlet is connected with the cooling water return pipe, and 3 bottom tube exits on heat preservation conveyer pipe layer with cooling water duct connections, electromagnetic heater 4 surrounds 3 sides on heat preservation conveyer pipe layer are so that to the material heating in the pan feeding passageway, heat preservation conveyer pipe layer 3 with electromagnetic heater 4 leaves the interval, just the heat preservation conveyer pipe layer 3 outside is provided with the insulating layer, heat preservation conveyer pipe layer 3, electromagnetic heater 4 and holding chamber 7 structure with it suits to go into feed cylinder 6, different with traditional injection molding machine, this pan feeding heat preservation economizer for injection molding machine adopts electromagnetic heater to replace the resistance wire as heating element, makes feed cylinder self generate heat rather than making the feed cylinder generate heat through the heat transfer, reduces heat transfer heat loss, promotes rate of heating and efficiency.

The embodiment of the feeding heat-preservation energy-saving device for the injection molding machine is realized, an electromagnetic heater works, an electromagnetic coil utilizes the electromagnetic induction principle, a magnetic field with high-speed change is generated in the coil, alternating magnetic lines of force in the magnetic field pass through a charging barrel pipeline, countless small eddy currents are generated in the inner wall of the charging barrel, the charging barrel can generate heat to exchange heat with materials, the charging barrel can not generate heat through heat transfer, the heat transfer heat loss is reduced, the heating speed and the heating efficiency are improved, the environment temperature cannot be raised, the coil can not generate heat, the problem that the service life is shortened due to high-temperature oxidation of the coil is avoided, a heating element is protected, meanwhile, high-temperature cooling water used by the injection molding machine enters a heat-preservation conveying pipe layer through a cooling water return pipe to transfer heat to the surface of the charging barrel, a heat insulation layer wrapped outside the heat, the processing cost is reduced, and the cooling water passing through the heat-preservation conveying pipe layer is conveyed to the water pool for recycling through the cooling water conveying pipe.

The above is only the concrete embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a pan feeding heat preservation economizer for injection molding machine which characterized in that: including feed cylinder, cooling water back flow, heat preservation conveyer pipe layer, electromagnetic heater and cooling water conveyer pipe, the feed cylinder center be provided with the pan feeding passageway that the bottom has into the feed cylinder, and the feed cylinder side with the pan feeding barrel side end of pan feeding passageway forms the holding chamber, heat preservation conveyer pipe layer and electromagnetic heater all set up in the holding intracavity, the parcel of heat preservation conveyer pipe layer goes into the feed cylinder side, just the heat preservation conveyer pipe layer respectively with cooling water back flow and cooling water duct connections, electromagnetic heater surrounds the heat preservation conveyer pipe layer side so that to the material heating in the pan feeding passageway.

2. The feeding, heat-insulating and energy-saving device for the injection molding machine as claimed in claim 1, wherein: the heat preservation conveyer pipe layer form for the conveyer pipe encircles, its top pipe entry with the cooling water back flow is connected so that introduce the high temperature cooling water after using, and heat preservation conveyer pipe layer bottom pipe export with cooling water duct connections.

3. The feeding, heat-insulating and energy-saving device for the injection molding machine as claimed in claim 1, wherein: go into the feed cylinder be hopper-shaped structure, heat preservation conveyer pipe layer, electromagnetic heater and holding chamber structure with it suits to go into the feed cylinder.

4. The feeding, heat-insulating and energy-saving device for the injection molding machine as claimed in claim 1, wherein: the heat preservation conveying pipe layer and the electromagnetic heater are spaced, and a heat insulation layer is arranged on the outer side of the heat preservation conveying pipe layer.