CN210820761U

CN210820761U - Prevent outer thermoplastic injection molding machine who leaks

Info

Publication number: CN210820761U
Application number: CN201921881471.2U
Authority: CN
Inventors: 陈炯韩
Original assignee: Weihai Shengxin Outdoor Products Co ltd
Current assignee: Weihai Shengxin Outdoor Products Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-23
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a prevent thermoplastics injection molding machine of outer hourglass, the left end intercommunication of intercommunication mouth and notes plastic cylinder is passed through on the right side in storage chamber, the top fixedly connected with degassing tank in storage chamber, the bottom of degassing tank and the top intercommunication in storage chamber, the top fixedly connected with hydraulic stem of degassing tank, the bottom of hydraulic stem piston rod run through the top of degassing tank and extend to the inner chamber of degassing tank, the utility model relates to an injection molding machine technical field. This prevent thermoplastic injection molding machine of hourglass when the melt flows to the storage chamber, drives the extrusion piece through the hydraulic stem and goes up to slide, forms the negative pressure in the degasification intracavity, with air and partly molten liquid suction degasification incasement, through the cooperation of gas vent and leakage fluid dram, separates air and melt, and the air is discharged along exhaust duct come-up, and the melt flows back along backflow pipeline, can be quick with the air escape in the melt to can prevent effectively that the melt from revealing.

Description

Prevent outer thermoplastic injection molding machine who leaks

Technical Field

The utility model relates to an injection molding machine technical field specifically is a prevent outer thermoplastic injection molding machine who leaks.

Background

An injection molding machine, also known as an injection molding machine or an injection machine, is a main molding device for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by utilizing a plastic molding die, and is divided into a vertical type, a horizontal type and an all-electric type, the injection molding machine can heat the plastics and apply high pressure to the molten plastics to inject the molten plastics to fill a die cavity of the die, the working principle of the injection molding machine is similar to that of an injection syringe for injection, the injection molding machine injects the plasticized plastics in a molten state into the closed die cavity by means of the thrust of a screw rod, and obtains a product after solidification and shaping, the injection molding is a cyclic process, and each cycle mainly comprises: quantitative feeding, melting and plasticizing, pressure injection, mold filling and cooling, mold opening and taking out, and closing the mold after taking out the plastic part for the next cycle.

When the existing injection molding machine is used for injection molding, part of air is often contained in the internal molten liquid, and the air generates bubbles in the molten liquid, so that the quality of an injection molded product is poor.

Disclosure of Invention

The utility model provides a to prior art not enough, the utility model provides a prevent thermoplastic injection molding machine of outer hourglass has solved the air and has produced the bubble in the meltwater, and the product quality that leads to moulding plastics to come out is poor, but current injection molding machine when exhausting, discharges meltwater and air together very easily, has caused revealing of meltwater, uses inconvenient problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the thermoplastic plastic injection molding machine capable of preventing leakage comprises a forming die, a plastic injection cylinder, a storage cavity and a feeding cavity, wherein the right side of the storage cavity is communicated with the left end of the plastic injection cylinder through a communication port, the top of the storage cavity is fixedly connected with a degassing tank, the bottom of the degassing tank is communicated with the top of the storage cavity, the top of the degassing tank is fixedly connected with a hydraulic rod, the bottom end of a piston rod of the hydraulic rod penetrates through the top of the degassing tank and extends to the inner cavity of the degassing tank, the surface of the piston rod of the hydraulic rod is in sliding connection with the inner cavity of the degassing tank, an extrusion block is in sliding connection with the inner cavity of the degassing tank, the bottom end of the piston rod of the hydraulic rod is fixedly connected with the top of the extrusion block, a fixing frame is fixedly connected with the inner cavity of the degassing tank, a pressure spring is fixedly connected with the bottom of the fixing frame through a, the inner cavity of the fixing frame is provided with a vent hole.

Preferably, an air outlet and a liquid outlet are respectively formed in one side of the inner cavity of the degassing tank from top to bottom, one end of the liquid outlet is communicated with a backflow pipeline, and the bottom end of the backflow pipeline is communicated with the top of the material storage cavity.

Preferably, the surface of the return pipeline is communicated with an exhaust pipeline, and the surface of the exhaust pipeline is fixedly connected with a first one-way valve.

Preferably, the surface of the plastic injection cylinder is communicated with a feed hopper, and the right side of the plastic injection cylinder is fixedly connected with a driving motor through a motor box.

Preferably, the left end of the output shaft of the driving motor is fixedly connected with a rotating shaft through a coupler, the left end of the rotating shaft penetrates through the right end of the plastic injection cylinder and extends to the inner cavity of the plastic injection cylinder, the surface of the rotating shaft is rotatably connected with the inner cavity of the plastic injection cylinder, and the rotating shaft is fixedly connected with a feeding paddle located in the surface of the inner cavity of the plastic injection cylinder.

Preferably, the bottom of the storage cavity is communicated with the top of the feeding cavity through a pipeline fixedly connected with a second one-way valve, the right side of the feeding cavity is fixedly connected with an injection molding power mechanism, and the left side of the feeding cavity is communicated with the right side of the forming mold through a pipeline.

Preferably, the surface of the plastic injection cylinder is fixedly connected with a heating ring, the surface of the feeding cavity is fixedly connected with a sealing cavity, and the bottom of the heating ring is communicated with the surface of the sealing cavity through a hot circulation pipeline.

The utility model provides a prevent outer thermoplastic injection molding machine who leaks. Compared with the prior art, the method has the following beneficial effects:

(1) the thermoplastic plastic injection molding machine capable of preventing leakage is characterized in that the right side of a storage cavity is communicated with the left end of a plastic injection cylinder through a communication port, the top of the storage cavity is fixedly connected with a degassing tank, the bottom of the degassing tank is communicated with the top of the storage cavity, the top of the degassing tank is fixedly connected with a hydraulic rod, the bottom end of a piston rod of the hydraulic rod penetrates through the top of the degassing tank and extends to the inner cavity of the degassing tank, the surface of the piston rod of the hydraulic rod is in sliding connection with the inner cavity of the degassing tank, the inner cavity of the degassing tank is in sliding connection with an extrusion block, the bottom end of the piston rod of the hydraulic rod is fixedly connected with the top of the extrusion block, the inner cavity of the degassing tank is fixedly connected with a fixing frame, the bottom of the fixing frame is fixedly connected with a pressure spring through a fixing block, the top end of the pressure spring is fixedly connected with an, form the negative pressure in the degasification intracavity, with air and partly melt liquid suction degassing tank in, through the cooperation of gas vent and leakage fluid dram, separate air and melt, the air is along exhaust duct come-up discharge, and the melt flows back along backflow pipeline, can be quick with the air escape in the melt to can prevent effectively that the melt from revealing.

(2) This prevent outer thermoplastic injection molding machine who leaks, through the fixed surface at the injection molding feed cylinder be connected with the heating collar to the fixed surface in pay-off chamber is connected with sealed chamber, and the bottom of heating collar is through the surface intercommunication in circulation pipeline and sealed chamber, and the heat that the heating collar during operation produced circulates sealed intracavity through the circulation pipeline, keeps warm to the pay-off chamber through sealed chamber, can prevent that the melt temperature from reducing, solidifies in advance before moulding plastics.

Drawings

FIG. 1 is a partial cross-sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a front view of the structure of the present invention.

In the figure: 1-forming die, 2-plastic injection cylinder, 3-material storage cavity, 4-material feeding cavity, 6-degassing box, 7-hydraulic rod, 8-hot circulation pipeline, 9-extrusion block, 10-fixing frame, 11-pressure spring, 12-extrusion plate, 13-vent hole, 14-exhaust port, 15-liquid discharge port, 16-backflow pipeline, 17-exhaust pipeline, 18-first one-way valve, 19-driving motor, 20-rotation shaft, 21-heating ring and 22-sealing cavity.

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. 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 invention provides a technical solution: a thermoplastic plastic injection molding machine capable of preventing leakage comprises a forming mold 1, an injection molding material cylinder 2, a material storage cavity 3 and a feeding cavity 4, wherein the surface of the injection molding material cylinder 2 is fixedly connected with a heating ring 21, the surface of the feeding cavity 4 is fixedly connected with a sealing cavity 22, the bottom of the heating ring 21 is communicated with the surface of the sealing cavity 22 through a heat circulation pipeline 8, heat generated during the working of the heating ring 21 is circulated into the sealing cavity 22 through the heat circulation pipeline 8, the feeding cavity 4 is insulated through the sealing cavity 22 to prevent the temperature of molten liquid from reducing, the molten liquid is solidified in advance before injection molding, the bottom of the material storage cavity 3 is communicated with the top of the feeding cavity 4 through a pipeline fixedly connected with a second one-way valve, the right side of the feeding cavity 4 is fixedly connected with an injection molding power mechanism, the left side of the feeding cavity 4 is communicated with the right side of the forming mold 1 through a pipeline, and the surface of the, the right side of the plastic injection cylinder 2 is fixedly connected with a driving motor 19 through a motor box, the driving motor 19 is communicated with a power supply, the left end of an output shaft of the driving motor 19 is fixedly connected with a rotating shaft 20 through a coupler, the left end of the rotating shaft 20 penetrates through the right end of the plastic injection cylinder 2 and extends to the inner cavity of the plastic injection cylinder 2, the surface of the rotating shaft 20 is rotatably connected with the inner cavity of the plastic injection cylinder 2, the surface of the rotating shaft 20 positioned in the inner cavity of the plastic injection cylinder 2 is fixedly connected with a feeding paddle, the right side of the storage cavity 3 is communicated with the left end of the plastic injection cylinder 2 through a communicating port, the top of the storage cavity 3 is fixedly connected with a degassing box 6, one side of the inner cavity of the degassing box 6 is respectively provided with an air outlet 14 and a liquid outlet 15 from top to bottom, one end of the liquid outlet 15 is communicated with a return pipe 16, the surface of the return pipe, prevent the entering of outside air through first check valve 18, the bottom of backflow pipeline 16 communicates with the top of storage cavity 3, the inner chamber of backflow pipeline 16 is fixedly connected with the check valve, the bottom of deaerating tank 6 communicates with the top of storage cavity 3, the top of deaerating tank 6 is fixedly connected with hydraulic rod 7, hydraulic rod 7 communicates with hydraulic cylinder, the bottom of hydraulic rod 7 piston rod runs through the top of deaerating tank 6 and extends to the inner chamber of deaerating tank 6, the surface of hydraulic rod 7 piston rod is connected with the inner chamber of deaerating tank 6 in a sliding manner, the inner chamber of deaerating tank 6 is connected with extrusion block 9 in a sliding manner, the bottom of hydraulic rod 7 piston rod is connected with the top of extrusion block 9 in a fixed manner, the inner chamber of deaerating tank 6 is fixedly connected with fixing frame 10, the bottom of fixing frame 10 is fixedly connected with pressure spring 11 through the fixing block, the top of pressure spring 11 is fixedly connected with extrusion plate 12, the, when the melt flows into the material storage cavity 3, the hydraulic rod 7 drives the extrusion block 9 to slide upwards, negative pressure is formed in the degassing cavity 6, air and a part of melt are pumped into the degassing box 6, the air and the melt are separated through the matching of the exhaust port 14 and the liquid discharge port 15, the air floats upwards along the exhaust pipeline 17 and is discharged, the melt flows back along the backflow pipeline 16, the air in the melt can be rapidly discharged, and the melt can be effectively prevented from leaking.

When the device is used, raw materials are added into an injection molding material cylinder 2 through a feed hopper net, a driving motor 19 drives a rotating shaft 20 to rotate, feeding is carried out, heating is carried out through a heating ring 21, the later molten liquid is conveyed into a material storage cavity 3, a hydraulic rod 7 drives an extrusion block 9 to slide upwards, negative pressure is formed in a degassing cavity 6, air in the material storage cavity 3 upwards drags an extrusion plate 12 to pull a compression spring 11 to move, air and a part of the molten liquid are sucked into a degassing box 6, the air floats upwards, the hydraulic rod 7 drives the extrusion block 9 to descend at the moment, the air is discharged along an exhaust port 14, then the rest molten liquid is extruded to flow into a backflow pipeline 16 through a liquid discharge port 15, the rest air floats upwards along the exhaust pipeline 17 to be discharged, the molten liquid flows back along the backflow pipeline 16, and then the molten liquid is conveyed into a forming mold 1 through.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent thermoplastic injection molding machine of hourglass, includes forming die (1), injection molding feed cylinder (2), storage cavity (3) and feeding chamber (4), its characterized in that: the right side of the storage cavity (3) is communicated with the left end of the injection molding barrel (2) through a communication port, the top of the storage cavity (3) is fixedly connected with a degassing tank (6), the bottom of the degassing tank (6) is communicated with the top of the storage cavity (3), the top of the degassing tank (6) is fixedly connected with a hydraulic rod (7), the bottom end of a piston rod of the hydraulic rod (7) penetrates through the top of the degassing tank (6) and extends to the inner cavity of the degassing tank (6), the surface of the piston rod of the hydraulic rod (7) is in sliding connection with the inner cavity of the degassing tank (6), the inner cavity of the degassing tank (6) is in sliding connection with an extrusion block (9), the bottom end of the piston rod of the hydraulic rod (7) is fixedly connected with the top of the extrusion block (9), the inner cavity of the degassing tank (6) is fixedly connected with a fixing frame (10), and the bottom of the fixing frame (10) is fixedly connected with a pressure spring (11), the top end of the pressure spring (11) is fixedly connected with an extrusion plate (12), and an inner cavity of the fixing frame (10) is provided with a vent hole (13).

2. The leakage prevention thermoplastic injection molding machine as claimed in claim 1, wherein: one side of the inner cavity of the degassing tank (6) is respectively provided with an exhaust port (14) and a liquid discharge port (15) from top to bottom, one end of the liquid discharge port (15) is communicated with a backflow pipeline (16), and the bottom end of the backflow pipeline (16) is communicated with the top of the storage cavity (3).

3. The leakage prevention thermoplastic injection molding machine as claimed in claim 2, wherein: the surface of the return pipeline (16) is communicated with an exhaust pipeline (17), and a first one-way valve (18) is fixedly connected to the surface of the exhaust pipeline (17).

4. The leakage prevention thermoplastic injection molding machine as claimed in claim 1, wherein: the surface of the plastic injection cylinder (2) is communicated with a feed hopper, and the right side of the plastic injection cylinder (2) is fixedly connected with a driving motor (19) through a motor box.

5. The thermoplastic injection molding machine for preventing the leakage according to claim 4, wherein: the left end of driving motor (19) output shaft passes through shaft coupling fixedly connected with axis of rotation (20), the left end of axis of rotation (20) runs through the right-hand member of annotating plastic cylinder (2) and extends to the inner chamber of annotating plastic cylinder (2), the surface of axis of rotation (20) is connected with the inner chamber rotation of annotating plastic cylinder (2) to axis of rotation (20) are located the fixed surface who annotates plastic cylinder (2) inner chamber and are connected with the pay-off paddle.

6. The leakage prevention thermoplastic injection molding machine as claimed in claim 1, wherein: the bottom of storage cavity (3) is through the pipeline of fixedly connected with second check valve and the top intercommunication of pay-off chamber (4) to the right side fixedly connected with power unit of moulding plastics of pay-off chamber (4), the right side intercommunication of pipeline and forming die (1) is passed through in the left side of pay-off chamber (4).

7. The leakage prevention thermoplastic injection molding machine as claimed in claim 1, wherein: the surface of the plastic injection cylinder (2) is fixedly connected with a heating ring (21), the surface of the feeding cavity (4) is fixedly connected with a sealing cavity (22), and the bottom of the heating ring (21) is communicated with the surface of the sealing cavity (22) through a heat circulation pipeline (8).