CN219338360U

CN219338360U - Screw injection molding device

Info

Publication number: CN219338360U
Application number: CN202223431401.1U
Authority: CN
Inventors: 黎子扬; 黎景华
Original assignee: Guangdong Haichang Electric Manufacturing Co ltd
Current assignee: Guangdong Haichang Electric Manufacturing Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-07-14
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to the technical field of injection molding, in particular to a screw type injection molding device which comprises a base, wherein an injection molding bin is arranged at the top end of the base, a pretreatment box is arranged at the top end of the injection molding bin, and a feed hopper is arranged at the top end of the pretreatment box. According to the utility model, the pre-treatment box is fixed at the top end of the injection molding bin, and the pre-heating plate and the pre-mixing hinge are arranged in the pre-treatment box and are used for pre-mixing and stirring the plastic raw materials, so that the heating and mixing time required in the injection molding bin is shortened after the plastic raw materials enter the injection molding bin, and the plastic injection molding speed is improved. The blanking hole is arranged between the pretreatment box and the injection molding bin, the top end of the blanking hole is provided with a slidable baffle plate, and the closing, opening and opening area of the blanking hole can be controlled by moving the baffle plate, so that the speed and the total amount of plastic raw materials added into the injection molding bin are controlled.

Description

Screw injection molding device

Technical Field

The utility model relates to the technical field of plastic injection molding, in particular to a screw type injection molding device.

Background

The injection molding device for plastic injection molding generally adopts injection molding machine equipment, and the injection molding machine is also called an injection molding machine or an injection molding machine, which is molding equipment for manufacturing thermosetting plastics or thermoplastic plastics into plastic products with various shapes by using a molding die, and mainly comprises vertical, horizontal and angle type injection molding machines, wherein the injection molding machines firstly heat plastics, apply pressure to molten plastics and then inject the molten plastics into a die cavity to obtain products; screw injection molding machines utilize screws to plasticize and inject plastic.

The screw is an important component of an injection molding machine and is used for conveying, compacting, melting, stirring and pressing plastics, all of which are completed by the rotation of the screw in a charging barrel, and friction and mutual movement are generated on the inner wall of the machine barrel, the bottom surface of a screw groove, the pushing surface of a screw edge and between plastics when the screw rotates.

The injection molding is a main molding method of plastics, and is characterized by high production efficiency, strong processing adaptability to various plastics, capability of molding injection products with complex shapes and precise sizes, and wide application fields.

The injection molding has the advantages of high production speed, high efficiency, automation in operation, multiple colors, various shapes, large size, accurate product size, easy updating of the product and capability of forming a product with complex shape.

The injection molding is suitable for the molding processing fields of mass production, products with complex shapes and the like, and the molded product is obtained after the plastic material which is completely melted by stirring a screw rod at a certain temperature is injected into a mold cavity by high pressure and cooled and solidified.

At present, plastics have some problems in carrying out injection moulding in-process, and the plastics raw materials that plastics injection moulding was used just carries out the heating and mixes in the storehouse of moulding plastics inside, does not carry out preheating and pre-mixing stirring in advance for the plastics raw materials is at the storehouse of moulding plastics inside heating slower, and is more extravagant time, leads to plastics injection moulding's inefficiency, simultaneously, when feeding the storehouse of moulding plastics inside, there is no control and limit material structure, inconvenient control plastics raw materials adds the inside speed and the total amount of storehouse of moulding plastics. Therefore, a screw injection molding device is needed to solve the problem that the plastic raw materials for plastic injection molding are not preheated and premixed in advance.

For example, the prior patent publication number CN214000445U provides a screw injection molding device, which adopts a mode of combining a constant temperature display screen and an arc heating plate, the arc heating plate is directly connected with the constant temperature display screen, and the visualized temperature monitoring and regulating device solves the problem of defective products or damaged materials caused by unstable temperature in a cavity to the greatest extent; the separator flow spacer ring group is adopted, and on the basis of stirring materials by the spiral stirring blades, secondary extrusion and flow distribution are carried out on the materials subjected to primary stirring, so that the problems of uniform materials and temperature rising of the materials are improved to a greater extent, and the problem of defective finished products caused by uneven stirring of the materials is reduced.

However, the device is only suitable for a visual temperature monitoring and regulating device, so that the problem of defective products or damaged materials caused by unstable temperature in a cavity is solved to the greatest extent, and the plastic raw materials for plastic injection molding cannot be preheated and premixed in advance.

The existing screw injection molding device is characterized in that plastic raw materials for plastic injection molding are heated and mixed in an injection molding bin, preheating and premixing stirring are not performed in advance, so that the plastic raw materials are heated slowly in the injection molding bin, the efficiency of plastic injection molding is low, meanwhile, when the injection molding bin is fed, a control and material limiting structure is not provided, and the speed and the total amount of the plastic raw materials in the injection molding bin are inconvenient to control.

Disclosure of Invention

The utility model aims to provide a screw injection molding device which is used for solving the problem that plastic raw materials are heated relatively slowly in an injection molding bin without preheating and premixing stirring in advance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a screw type injection molding device, includes the base, the storehouse of moulding plastics is installed on the top of base, the top in storehouse of moulding plastics is installed and is handled the case in advance, the top in the case of handling in advance is provided with the loading hopper.

Preferably, the internal surface of pretreatment case is inlayed and is had the preheating piece, pretreatment case with be provided with the blanking hole between the storehouse of moulding plastics.

Preferably, the inside of pretreatment case is passed there is the pivot, the surface mounting of pivot has the premix leaf, the other end of pivot is connected with first motor.

Preferably, a striker plate is arranged at the top end of the blanking hole, and one end of the striker plate is connected with an electric telescopic rod.

Preferably, the side bottom of the pretreatment box is provided with an inlet and outlet groove, and the top end of the inside of the inlet and outlet groove is stuck with a leakage-proof plug.

Preferably, the electric heating rod is embedded on the inner surface of the injection molding bin, a screw rod penetrates through the injection molding bin, and the outer end of the screw rod is connected with a second motor.

Preferably, a supporting rod is fixed at the bottom end of the injection molding bin and is fixed on the base.

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

1. according to the utility model, the pre-treatment box is fixed at the top end of the injection molding bin, the pre-heating plate is embedded on the inner surface of the pre-treatment box, and the pre-mixing hinge is arranged in the pre-treatment box, so that the plastic raw material for plastic injection molding is added into the pre-treatment box, the pre-heating treatment is firstly carried out through the pre-heating plate, and meanwhile, the first motor drives the rotating shaft and the pre-mixing hinge to rotate, so that the plastic raw material is subjected to pre-mixing stirring treatment, after entering the injection molding bin, the heating and mixing time required in the injection molding bin is shortened, the heating and mixing stirring of the plastic raw material in the injection molding bin are accelerated, and the plastic injection molding speed is improved.

2. According to the utility model, the blanking hole is arranged between the pretreatment box and the injection molding bin, the top end of the blanking hole is provided with the slidable baffle plate, the baffle plate can slide through the inlet and outlet grooves and is connected with the electric telescopic rod, after the plastic raw materials are preheated and premixed in the pretreatment box, the electric telescopic rod can drive the baffle plate to move at the top end of the blanking hole, the closing, opening and the opening area of the blanking hole are controlled, and the speed and the total amount of the plastic raw materials added into the injection molding bin are controlled.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of the utility model at A of FIG. 1;

FIG. 3 is a schematic view of a portion of the pretreatment tank of FIG. 1 according to the present utility model.

In the figure: 1. a base; 2. a support rod; 3. a second motor; 4. a blanking hole; 5. a striker plate; 6. a rotating shaft; 7. premixing leaves; 8. a feed hopper; 9. a pretreatment box; 10. preheating the sheet; 11. a first motor; 12. an electric telescopic rod; 13. an injection molding bin; 14. an electric heating rod; 15. a screw; 16. a leak-proof plug; 17. and enter and exit the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, 2 and 3, a screw injection molding apparatus is shown, which includes a base 1, wherein the base 1 is horizontally disposed; the top of base 1 installs the storehouse 13 of moulding plastics, and the cross-section of storehouse 13 of moulding plastics is cylindrical structure, and the storehouse 13 slope setting of moulding plastics, and the export position of moulding plastics is lower for the storehouse 13 of moulding plastics is after the injection moulding to the plastics raw materials, does benefit to and follows the storehouse 13 of moulding plastics export and go out the ejection of compact completely.

The top end of the injection molding bin 13 is provided with a pretreatment box 9, and the pretreatment box 9 is of a rectangular structure and is far away from an injection molding outlet of the injection molding bin 13; the top end of the pretreatment box 9 is provided with a hopper 8; the preheating piece 10 is embedded on the inner surface of the pretreatment box 9, and the preheating piece 10 is connected with an external power supply and electrified, and is of a rectangular structure and is used for carrying out preheating treatment on plastic raw materials in the pretreatment box 9.

The inside of the pretreatment box 9 is penetrated with a rotating shaft 6, and the rotating shaft 6 is parallel to the bottom end of the pretreatment box 9 and is rotatably connected with the pretreatment box 9; the surface of the rotating shaft 6 is fixedly provided with a premixing blade 7, the premixing blade 7 is of a rectangular structure, and rotates around the rotating shaft 6 in the pretreatment box 9 to perform premixing stirring on plastic raw materials, and the premixing blade 7 is positioned below the feed hopper 8.

The other end of the rotating shaft 6 is connected with a first motor 11, the first motor 11 is arranged on the outer side of the pretreatment box 9, the first motor 11 is of a general type and can be purchased in the market, a switch is arranged on the surface of the first motor 11 and used for controlling the start and stop of the first motor 11, and the first motor 11 is connected with an external power supply through an electric wire and is electrified and used for driving the rotating shaft 6 and the pretreatment blades 7 to rotate.

A blanking hole 4 is arranged between the pretreatment box 9 and the injection molding bin 13, and the blanking hole 4 is positioned on the surface of the injection molding bin 13 and is of a circular structure, so that the pretreatment box 9 is communicated with the injection molding bin 13; the top of blanking hole 4 is provided with striker plate 5, and striker plate 5 is rectangular structure, and length and width are all not less than the diameter of blanking hole 4 for switching blanking hole 4.

One end of the striker plate 5 is connected with an electric telescopic rod 12, and the electric telescopic rod 12 is arranged on the surface of the injection molding bin 13 and used for driving the striker plate 5 to move at the top end of the blanking hole 4 and move in the in-out groove 17.

The bottom end of the side surface of the pretreatment box 9 is provided with an inlet and outlet groove 17, the inlet and outlet groove 17 is of a rectangular structure, and the baffle plate 5 slides through the inlet and outlet groove 17; the inside top of business turn over groove 17 pastes has leak protection stopper 16, and leak protection stopper 16 adopts the rubber material to with the surface contact of striker plate 5, make striker plate 5 when passing through business turn over groove 17, leak protection stopper 16 carries out leak protection to business turn over groove 17, avoids the plastics raw materials to spill from business turn over groove 17.

An electric heating rod 14 is embedded on the inner surface of the injection molding bin 13, and the electric heating rod 14 is connected with an external power supply to be electrified, generate heat and scald, so as to heat plastic raw materials in the injection molding bin 13; the interior of the injection molding bin 13 is penetrated by a screw rod 15, and the screw rod 15 is rotatably connected with the injection molding bin 13 and is spirally mixed and used for pushing the plastic raw materials.

The outer end of screw rod 15 is connected with second motor 3, and second motor 3 installs in the one end outside of moulding plastics storehouse 13, and second motor 3 adopts general model, can purchase on the market, and this second motor 3's surface is from having the switch for control second motor 3 opens and stops, and second motor 3 is connected the circular telegram through the electric wire with external power source, is used for driving screw rod 15 rotation.

The bottom end of the injection molding bin 13 is fixedly provided with a supporting rod 2, the supporting rod 2 is vertically arranged on the base and fixedly connected with the base 1 by welding, the top end of the supporting rod is fixedly connected with the bottom end surface of the injection molding bin 13 by welding, the injection molding bin 13 is obliquely arranged, and the supporting rod 2 is fixedly arranged on the base 1 and fixedly supports and installs the injection molding bin 13.

This screw rod formula device of moulding plastics, when using: by fixing the pretreatment box 9 at the top end of the injection molding bin 13, embedding the preheating piece 10 on the inner surface of the pretreatment box 9, and arranging the premixing blade 7 inside the pretreatment box.

In this way, the plastic material for plastic injection molding is preheated by the preheating plate 10 and the first motor 11 drives the rotation shaft 6 and the premixing blade 7 to rotate, and the plastic material is premixed and stirred in the pretreatment tank 9.

Therefore, the plastic raw materials are pre-mixed and pre-heated in the pretreatment box 9 and then enter the injection molding bin 13, so that the heating and mixing time required in the injection molding bin 13 can be shortened, the heating, mixing and stirring of the plastic raw materials in the injection molding bin 13 are accelerated, and the plastic injection molding speed is improved.

Meanwhile, a blanking hole 4 is arranged between the pretreatment box 9 and the injection molding bin 13, a slidable baffle plate 5 is arranged at the top end of the blanking hole 4, and the baffle plate 5 can slide through the inlet and outlet groove 17 and is connected with the electric telescopic rod 12.

Thus, after the plastic raw materials are preheated and premixed in the pretreatment box 9, the electric telescopic rod 12 can drive the baffle plate 5 to move at the top end of the blanking hole 4, the closing, opening and opening area of the blanking hole 4 are controlled, and the speed and the total amount of the plastic raw materials added into the injection molding bin 13 are further controlled.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A screw injection molding apparatus, comprising: base (1), injection molding bin (13) are installed on the top of base (1), pretreatment tank (9) are installed on the top of injection molding bin (13), the top of pretreatment tank (9) is provided with loading hopper (8), interior surface mosaic of pretreatment tank (9) has preheating piece (10), pretreatment tank (9) with be provided with blanking hole (4) between injection molding bin (13).

2. A screw injection molding apparatus as claimed in claim 1, wherein: the inside of pretreatment case (9) is passed there is pivot (6), the surface mounting of pivot (6) has premix hinge (7), the other end of pivot (6) is connected with first motor (11).

3. A screw injection molding apparatus as claimed in claim 1, wherein: the top of blanking hole (4) is provided with striker plate (5), the one end of striker plate (5) is connected with electric telescopic handle (12).

4. A screw injection molding apparatus as claimed in claim 1, wherein: the side bottom of pretreatment case (9) is opened there is business turn over groove (17), the inside top in business turn over groove (17) is pasted and is had leak protection stopper (16).

5. A screw injection molding apparatus as claimed in claim 1, wherein: the electric heating rod (14) is embedded on the inner surface of the injection molding bin (13), a screw rod (15) penetrates through the injection molding bin (13), and the outer end of the screw rod (15) is connected with a second motor (3).

6. A screw injection molding apparatus as claimed in claim 1, wherein: the bottom end of the injection molding bin (13) is fixed with a supporting rod (2), and the supporting rod (2) is fixed on the base (1).