CN219044147U

CN219044147U - Lifting resin injection machine

Info

Publication number: CN219044147U
Application number: CN202223511386.1U
Authority: CN
Inventors: 于波
Original assignee: WEIHAI HONGCHENG ELECTROMECHANICAL EQUIPMENT CO Ltd
Current assignee: WEIHAI HONGCHENG ELECTROMECHANICAL EQUIPMENT CO Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-05-19
Anticipated expiration: 2032-12-28

Abstract

The utility model provides a lifting resin injection machine which comprises a base, a charging barrel and a piston, wherein an end cover is arranged at the end part of the charging barrel, a double-column type lifting machine is arranged on the base and comprises two upright posts and lifting seats moving up and down along the upright posts, guide sliding rods are arranged in the upright posts, the lifting seats are connected with the guide sliding rods in a sliding manner, the lifting seats are driven by lead screws, the side walls of the charging barrel are respectively hinged with the lifting seats on the two upright posts, a discharge hole is formed in the end cover of the charging barrel, and a discharge pipeline is connected to the discharge hole. The utility model has the beneficial effects that by adopting the technical scheme, the operating range of the charging barrel of the injection machine is improved, the matching of the nozzle and the die is more convenient, the charging operation of the charging barrel is more convenient, and the temperature control effect is good.

Description

Lifting resin injection machine

Technical Field

The utility model relates to the technical field of liquid molding, in particular to a lifting resin injection machine.

Background

The liquid molding process mainly includes a Resin Transfer Molding (RTM), a resin film melt impregnation (RFI), and a Vacuum Assisted Resin Impregnation (VARI). The Resin Transfer Molding (RTM) process is based on the principle that a dry fiber or fabric preform is placed in advance in a mold, and a liquid, reactive, low viscosity resin is flowed through and fills the closed mold under pressure injection or externally applied vacuum assistance, and the exhaust gas simultaneously wets and impregnates the dry fiber structure. After the impregnation is completed, the resin is cured in the mold through a thermally induced crosslinking reaction, and finally the molded product is obtained. The RTM process is a molding process which is rapidly developed in recent years and is suitable for the production of various, medium-batch and high-quality advanced composite material products.

The high-temperature thermosetting resin used in the composite material liquid forming process comprises epoxy resin, bismaleimide resin, polyimide resin and the like, is mostly solid at normal temperature, and can be injected into a closed mold cavity after being heated to a certain temperature to be sufficiently melted. The equipment used in the RTM composite material liquid forming process comprises an injector and a mould, wherein the injector comprises a charging barrel and a piston, resin is heated and melted in the charging barrel, the injector and the mould are relatively independent, one injector can correspond to different moulds in general, a nozzle is arranged on an end cover of the charging barrel, and the nozzle is communicated with the mould through a hose and used for pouring the melted resin into the mould. In order to maintain the temperature and fluidity of the molten resin, the length of the hose is usually only 1 to 2m, and the relative positional relationship between the mold and the injection machine is greatly restricted.

In addition, the process temperature limitation of a part of the resin is very strict, and therefore, the heating and melting of the resin and the temperature control of the pouring into the mold are very important.

Disclosure of Invention

The utility model aims to provide a liftable resin injection machine, a charging barrel of the injection machine can be lifted, so that the charging barrel can be matched with a die better and can be used for charging, and in addition, a heating plate is arranged on an end cover of the charging barrel, so that the control of the discharging temperature of molten resin can be facilitated.

The technical scheme of the utility model is as follows:

the utility model provides a lift resin injection machine, includes base, feed cylinder and piston, and the tip of feed cylinder is equipped with the end cover, be equipped with the double column type lift on the base, the double column type lift includes two stands and along the elevating platform of stand reciprocates, be equipped with the direction slide bar in the stand, the elevating platform slides with the direction slide bar and links to each other, the elevating platform is by screw drive, the lateral wall of feed cylinder is articulated with the elevating platform on two stands respectively, be equipped with the discharge gate on the feed cylinder end cover, be connected with the discharge pipeline on the discharge gate.

The base of the lifting resin injector has a certain length and width, and the length of the discharging pipeline is limited, so that the matching range of the discharging pipeline and the die is greatly limited.

Preferably, the end of the charging barrel far away from the end cover is hinged with the lifting seat.

The feeding of resin injection machine is through the feeding in the feed cylinder of end cover, and the central feed cylinder height of prior art is fixed, needs the end cover end of feed cylinder to tilt upwards during feeding, and this just leads to the high too high of end cover end of feed cylinder, is difficult for carrying out the feeding operation. According to the utility model, the double-column type lifter can lower the charging barrel to the lowest position, and then the end cover of the charging barrel can be rotated to the waist position of an operator, so that the operator can conveniently conduct charging operation.

The outside of end cover is equipped with the hot plate groove, and the hot plate inslot is equipped with the hot plate, and the hot plate is fixed in the hot plate inslot through the gland.

The resin part used in the composite material liquid forming process has higher requirement on temperature control, the temperature requirement is more than 250 ℃, and the temperature difference is within 10 ℃, and the heating plate is arranged at the end cover of the charging barrel, so that the temperature of the resin leaving the charging barrel can be effectively controlled to meet the temperature requirement on the resin in the forming process. The heating plate is embedded, has small distance from the inner side surface of the end cover, good heat conduction effect and high heat utilization rate.

Preferably, the charging barrel is provided with a rotating shaft perpendicular to the axis of the charging barrel, the lifting seat is provided with a bearing matched with the rotating shaft, the charging barrel is rotationally connected with the lifting seat through the rotating shaft and the bearing, and the lifting seat is provided with a motor for driving the rotating shaft to rotate relative to the lifting seat.

The motor drives the charging barrel to rotate relative to the upright post, so that compared with manual driving, the charging barrel is safe and labor-saving.

An electric heating device is arranged on the outer side of the charging barrel, and an insulating layer is wrapped outside the electric heating device.

The lower side of the base is provided with casters.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the operating range of the charging barrel of the injection machine is improved, the matching of the nozzle and the die is more convenient, the charging operation of the charging barrel is more convenient, and the temperature control effect is good.

Drawings

FIG. 1 is a schematic view of the structural principle of the present utility model

FIG. 2 is a schematic view of an end cap

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2

In the figure:

1. base 2, charging barrel 3 and piston

4. End cover 5, upright post 6 and lifting seat

7. Screw 8, screw motor 9, discharge gate

10. Discharge pipeline 11, heating plate 12 and gland

13. Rotating shaft motor 14, electric heating device 15 and heat insulation layer

16. Caster wheel

Detailed Description

As shown in fig. 1-3, the present utility model:

the utility model provides a lift resin injection machine, includes base 1, feed cylinder 2 and piston 3, and the tip of feed cylinder 2 is equipped with end cover 4, be equipped with the double column type lift on the base 1, the double column type lift includes two stands 5 and along stand reciprocate's lift seat 6, be equipped with the direction slide bar in the stand, the lift seat slides with the direction slide bar and links to each other, the lift seat is driven by lead screw 7, and lead screw 7 has lead screw motor 8 drive to rotate, the lateral wall of feed cylinder 2 articulates with the lift seat 6 on two stands 5 respectively, be equipped with discharge gate 9 on the feed cylinder end cover 4, be connected with ejection of compact pipeline 10 on the discharge gate.

The base 1 of the lifting resin injector has a certain length and width, and the length of the discharging pipeline 10 is limited, so that the matching range of the discharging pipeline 10 and the die is greatly limited.

The outside of end cover 4 is equipped with the hot plate groove, is equipped with hot plate 11 in the hot plate groove, and the hot plate is fixed in the hot plate inslot through gland 12.

Preferably, the charging barrel is provided with a rotating shaft perpendicular to the axis of the charging barrel, the lifting seat is provided with a bearing matched with the rotating shaft, the charging barrel is rotationally connected with the lifting seat through the rotating shaft and the bearing, and the lifting seat is provided with a rotating shaft motor 13 for driving the rotating shaft to rotate relative to the lifting seat.

An electric heating device 14 is arranged on the outer side of the charging barrel, and an insulating layer 15 is wrapped outside the electric heating device.

The underside of the base is provided with casters 16.

The working procedure of this example:

resin raw material is added into the barrel 2, and the resin is melted by the electric heating device 14 and the end cap. The height of the material arranging barrel is adjusted, so that the discharging pipeline can be conveniently communicated with a die, molten resin raw materials are extruded by the piston 3 through the discharging hole 9, and poured into the die through the discharging pipeline 10.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. The utility model provides a lift resin injection machine, includes base, feed cylinder and piston, and the tip of feed cylinder is equipped with end cover, its characterized in that: the double-column type lifting machine is arranged on the base and comprises two upright posts and lifting seats moving up and down along the upright posts, guide sliding rods are arranged in the upright posts, the lifting seats are connected with the guide sliding rods in a sliding mode, the lifting seats are driven by screw rods, the side walls of the charging barrel are hinged to the lifting seats on the two upright posts respectively, a discharging hole is formed in an end cover of the charging barrel, and a discharging pipeline is connected to the discharging hole.

2. The lifting resin injection machine of claim 1, wherein: the outside of end cover is equipped with the hot plate groove, and the hot plate inslot is equipped with the hot plate, and the hot plate is fixed in the hot plate inslot through the gland.

3. The lifting resin injection machine of claim 1, wherein: the lifting seat is provided with a bearing matched with the rotating shaft, the charging barrel is rotationally connected with the lifting seat through the rotating shaft and the bearing, and the lifting seat is provided with a motor for driving the rotating shaft to rotate relative to the lifting seat.

4. The lifting resin injection machine of claim 1, wherein: an electric heating device is arranged on the outer side of the charging barrel, and an insulating layer is wrapped outside the electric heating device.

5. The lifting resin injection machine of claim 1, wherein: the lower side of the base is provided with casters.