CN212764475U

CN212764475U - Anti-freezing hot-melt injection molding head for injection molding

Info

Publication number: CN212764475U
Application number: CN202021134378.8U
Authority: CN
Inventors: 孙朝阳
Original assignee: Qingdao Ruimu Jinggong Technology Co ltd
Current assignee: Qingdao Ruimu Jinggong Technology Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-23
Anticipated expiration: 2030-06-17

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a hot melting injection molding head for anti-freezing injection molding, which can continuously heat the plastic in the injection molding head to prevent the plastic from cooling, and can reflux the plastic in the injection molding head after the injection molding is finished to prevent the plastic from cooling in the injection molding head and influencing the next injection molding process; including the mouth of moulding plastics, the pipe of moulding plastics, the connecting pipe, the heat preservation, the atmospheric pressure pipe, the separation blade, telescopic link and backward flow board, the right-hand member of the mouth of moulding plastics is connected with the left end of the pipe of moulding plastics, the right-hand member of the pipe of moulding plastics is connected with the left end of connecting pipe, the heat preservation includes the multiunit electrothermal tube, heat-conducting layer and insulating layer, heat-conducting layer and the pipe suit of moulding plastics, multiunit electrothermal tube equipartition in the outside of heat-conducting layer, insulating layer and multiunit electrothermal tube suit, the left end of heat-conducting layer and the left end of insulating layer all are connected with the right-hand member of the mouth.

Description

Anti-freezing hot-melt injection molding head for injection molding

Technical Field

The utility model relates to a technical field of injection molding machine especially relates to a prevent freezing head of moulding plastics with hot melt.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. The main molding equipment for manufacturing plastic products with various shapes by utilizing a plastic molding die for thermoplastic plastics or thermosetting plastics is divided into a vertical type, a horizontal type and an all-electric type, an 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, and an injection system has the functions that: the injection system is one of the most important components of an injection molding machine, generally comprises three main forms of plunger type, screw type and screw pre-molding plunger injection type, and is the screw type which is the most widely used at present. After the injection, the melt to injecting in the die cavity keeps stereotyped, however the head of moulding plastics of current injection molding machine hot melt still has some unreasonable factors at the in-process that uses, and the head is moulded plastics to current injection molding machine hot melt when using, at the ejection of compact position of moulding plastics head, if the plastics through the hot melt is because external factor easily, perhaps because the factor of self, rapid cooling, then can be serious influence going on of next process of moulding plastics, use very inconvenient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a can carry out continuous heating to the plastics in the head of moulding plastics, prevent the plastics cooling, in addition after the completion of moulding plastics, can prevent plastics in the head of moulding plastics from at the overhead internal cooling of moulding plastics, influence the next process of moulding plastics go on prevent that the freezing is moulded plastics with hot melt and is moulded plastics the head.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a hot-melting injection molding head for anti-freezing injection molding comprises an injection molding nozzle, an injection molding pipe, a connecting pipe, a heat preservation layer, an air pressure pipe, a separation blade, a telescopic rod and a reflux plate, wherein the right end of the injection molding nozzle is connected with the left end of the injection molding pipe, the right end of the injection molding pipe is connected with the left end of the connecting pipe, the heat preservation layer comprises a plurality of groups of electric heating pipes, a heat conduction layer and a heat insulation layer, the heat conduction layer is sleeved with the injection molding pipe, the plurality of groups of electric heating pipes are uniformly distributed on the outer side of the heat conduction layer, the heat insulation layer is sleeved with the plurality of groups of electric heating pipes, the left end of the heat conduction layer and the left end of the heat insulation layer are both connected with the right end of the injection molding nozzle, the injection molding nozzle is sleeved with the reflux plate, a reflux cavity is arranged in, the separation blade with the wall slot sliding connection, the right-hand member of separation blade is provided with the air guide groove, the left end of pneumatic tube passes the right-hand member of backward flow board injects in the backward flow intracavity.

Preferably, the injection nozzle is in a cone structure.

Preferably, the outer side of the right part of the injection molding nozzle is sleeved with an anti-overflow gasket.

Preferably, a sealing gasket is arranged in the backflow cavity and is tightly attached to the side wall of the blocking piece.

Preferably, the electric heating tube heat insulation device further comprises a plurality of groups of fixing rings, one ends of the plurality of groups of fixing rings are connected with the outer side of the heat conduction layer, the plurality of groups of fixing rings are respectively sleeved with the plurality of groups of electric heating tubes, and the other ends of the plurality of groups of fixing rings are respectively connected with the inner side of the heat insulation layer.

Preferably, still include two sets of installation springs, two sets of erection columns and two sets of ejector pads, the front end and the rear end of the mouth of moulding plastics all are provided with the mounting hole, the front portion and the rear portion of backward flow board all are provided with the installation cavity, and are two sets of the one end of installation spring is respectively with two sets of the lateral wall of installation cavity is connected, and is two sets of the other end of installation spring is respectively with two sets of the one end of erection column is connected, and is two sets of the other end of erection column passes two sets of respectively the installation cavity injects two sets of in the mounting hole, the right-hand member of backward flow board is provided with two sets of spouts, and is two sets of the left end of ejector pad is respectively with two sets of the right-hand member of.

Preferably, the right ends of the two groups of push blocks are provided with anti-slip pads.

Preferably, the two sets of mounting posts are both in a right-angle trapezoidal structure, and the inclined plane ends of the two sets of mounting posts are both towards the right side of the inner side.

(III) advantageous effects

Compared with the prior art, the utility model provides an anti-freezing is moulded plastics and is used hot melt head of moulding plastics possesses following beneficial effect: in the process of moulding plastics, the electrothermal tube is the continuous heating, the heat transmits the pipe of moulding plastics through the heat-conducting layer, plastics in the intraductal high temperature that keeps of moulding plastics, prevent the plastics cooling of hot melt, after the completion of moulding plastics, the user drives the separation blade through the telescopic link and removes, the separation blade will mould plastics the mouth and seal, then let in high-pressure gas to the guide duct through the atmospheric pressure pipe, high-pressure gas gets into through the guide duct and moulds plastics the head and mould plastics intraductally, blow off the head of moulding plastics and mould plastics intraductally, make plastics reflux injection pipe, prevent plastics intraductal cooling of moulding plastics, influence the normal clear of next process of moulding plastics, the work efficiency of the head of moulding plastics has been improved, it can carry out the continuous heating to the plastics in the head of moulding plastics to have reached, prevent the plastics cooling, and after the completion of moulding plastics, can be with.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic view of a portion of the structure of FIG. 1;

in the drawings, the reference numbers: 1. an injection molding nozzle; 2. injection molding a tube; 3. a connecting pipe; 4. a pneumatic tube; 5. a baffle plate; 6. a telescopic rod; 7. a return plate; 8. an electric heating tube; 9. a heat conductive layer; 10. a thermal insulation layer; 11. A gas guide groove; 12. an anti-overflow washer; 13. a gasket; 14. a fixing ring; 15. installing a spring; 16. Mounting a column; 17. a push block; 18. a non-slip mat.

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 utility model comprises an injection nozzle 1, an injection molding pipe 2, a connecting pipe 3, a heat insulating layer, an air pressure pipe 4, a baffle 5, a telescopic rod 6 and a reflux plate 7, wherein the right end of the injection molding nozzle 1 is connected with the left end of the injection molding pipe 2, the right end of the injection molding pipe 2 is connected with the left end of the connecting pipe 3, the heat insulating layer comprises a plurality of groups of electric heating pipes 8, a heat conducting layer 9 and a heat insulating layer 10, the heat conducting layer 9 is sleeved with the injection molding pipe 2, the plurality of groups of electric heating pipes 8 are uniformly distributed outside the heat conducting layer 9, the heat insulating layer 10 is sleeved with the plurality of groups of electric heating pipes 8, the left end of the heat conducting layer 9 and the left end of the heat insulating layer 10 are both connected with the right end of the injection molding nozzle 1, the injection molding nozzle 1 is sleeved with the reflux plate 7, the other end of the telescopic rod 6 is connected with the baffle 5, the injection nozzle 1 is provided with a baffle groove, the baffle 5 is in sliding connection with the baffle groove, the right end of the baffle 5 is provided with an air guide groove 11, and the left end of the air pressure pipe 4 penetrates through the right end of the reflux plate 7 and is inserted into the reflux cavity; in the injection molding process, the electric heating tube 8 is continuously heated, heat is transferred to the injection molding tube 2 through the heat conduction layer 9, the plastic in the injection molding tube 2 keeps high temperature to prevent the hot-melt plastic from cooling, after the injection molding is finished, a user drives the separation blade 5 to move through the telescopic rod 6, the separation blade 5 seals the injection molding nozzle 1, then high-pressure gas is introduced into the gas guide groove 11 through the gas guide groove 4, the high-pressure gas enters the injection molding head and the injection molding tube 2 through the gas guide groove 11 to blow out the plastic in the injection molding head and the injection molding tube 2 to enable the plastic to flow back out of the injection molding tube 2, the plastic is prevented from being cooled in the injection molding tube 2 to influence the normal operation of the next injection molding process, the working efficiency of the injection molding head is improved, the plastic in the injection molding head can be continuously heated to prevent the plastic from cooling, and after the injection molding is finished, the plastic in the, affecting the next injection molding process.

Referring to fig. 1, in the present invention, the injection nozzle 1 is a cone structure; the installation and the moulding plastics of mouth 1 of moulding plastics of being convenient for have strengthened the reliability and the practicality of the head of moulding plastics.

Referring to fig. 1, in the present invention, an anti-overflow gasket 12 is sleeved on the outer side of the right portion of the injection nozzle 1; prevent that the plastics of right side hot melt from flowing to the outside of moulding plastics mouth 1 at the in-process of moulding plastics, influence the normal use of moulding plastics mouth 1, strengthened the reliability and the security of moulding plastics the head.

Referring to fig. 3, in the present invention, a sealing gasket 13 is disposed in the backflow cavity, and the sealing gasket 13 is tightly attached to the side wall of the blocking piece 5; prevent that hot melt plastics from getting into the backward flow chamber, influencing the normal work of separation blade 5, strengthened the reliability and the security of the head of moulding plastics.

Referring to fig. 1, the present invention further includes a plurality of sets of fixing rings 14, one end of each of the plurality of sets of fixing rings 14 is connected to the outer side of the heat conducting layer 9, the plurality of sets of fixing rings 14 are respectively sleeved with the plurality of sets of electric heating tubes 8, and the other end of each of the plurality of sets of fixing rings 14 is respectively connected to the inner side of the heat insulating layer 10; the fixing ring 14 can fix the electric heating tube 8, and the fixing ring 14 can support the heat insulation layer 10 to protect the electric heating tube 8, thereby enhancing the safety and stability of the injection molding head.

Referring to fig. 2, the utility model discloses, still include two sets of mounting springs 15, two sets of erection columns 16 and two sets of ejector pads 17, the front end and the rear end of moulding plastics mouth 1 all are provided with the mounting hole, anterior portion and rear portion of backward flow board 7 all are provided with the installation cavity, two sets of one end of mounting spring 15 is connected with the lateral wall of two sets of installation cavities respectively, two sets of the other end of mounting spring 15 is connected with two sets of one end of erection column 16 respectively, two sets of the other end of erection column 16 passes two sets of installation cavities respectively and injects in two sets of the mounting hole, the right-hand member of backward flow board 7 is provided with two sets of spouts, the left end of two sets of ejector pads 17 is connected with the right-hand member of two sets of erection columns 16 respectively, two sets of the right-hand member of ejector; the mount pad is inserted in the mounting hole, can fix the mouth 1 of moulding plastics, and when dismantling the mouth 1 of moulding plastics, the user slides ejector pad 17 to the outside, and ejector pad 17 drives erection column 16 and removes, and 16 compression installation springs 15 of erection column move to the installation cavity, until 16 roll-off mounting holes of erection column, then will mould plastics mouth 1 and take out, the dismantlement of the mouth 1 of being convenient for mould plastics has strengthened the convenience of moulding plastics the head.

Referring to fig. 2, in the present invention, the right ends of the two sets of pushing blocks 17 are both provided with anti-slip pads 18; the non-slip mat 18 facilitates the mounting of the injection nozzle 1, enhancing the reliability of the injection head.

Referring to fig. 2, in the present invention, two sets of the mounting posts 16 are both in a right trapezoid structure, and the inclined ends of the two sets of the mounting posts 16 are both towards the right of the inner side; when will moulding plastics mouth 1 and the installation of backward flow board 7, mould plastics mouth 1 earlier with the inclined plane contact, promote erection column 16 through the inclined plane to compression installation spring 15, until erection column 16 slides to the position that corresponds with the mounting hole, then erection column 16 injects the mounting hole under the effect of installation spring 15 in, the installation of the mouth 1 of being convenient for of moulding plastics is fixed, has strengthened the convenience of moulding plastics the head.

When the injection molding nozzle is used, a user firstly connects the injection molding nozzle 1 with the reflux plate 7, in the injection molding process, the injection molding pipe 2 is continuously heated through the electric heating pipe 8, the cooling of plastic in the injection molding head is prevented, after the injection molding is finished, the plastic in the injection molding head is blown out through the air pressure pipe 4, when the injection molding nozzle 1 needs to be replaced, the user slides the push block 17, the injection molding nozzle 1 is taken out, and then the new injection molding nozzle 1 is installed in the reflux plate 7.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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 hot-melt injection molding head for the anti-freezing injection molding is characterized by comprising an injection molding nozzle (1), an injection molding pipe (2), a connecting pipe (3), a heat preservation layer, an air pressure pipe (4), a separation blade (5), a telescopic rod (6) and a reflux plate (7), wherein the right end of the injection molding nozzle (1) is connected with the left end of the injection molding pipe (2), the right end of the injection molding pipe (2) is connected with the left end of the connecting pipe (3), the heat preservation layer comprises a plurality of groups of electric heating pipes (8), a heat conduction layer (9) and a heat insulation layer (10), the heat conduction layer (9) is sleeved with the injection molding pipe (2), the plurality of groups of electric heating pipes (8) are uniformly distributed on the outer side of the heat conduction layer (9), the heat insulation layer (10) is sleeved with the plurality of groups of electric heating pipes (8), the left end of the heat conduction layer (9) and the left end of the, mould plastics mouth (1) with backward flow board (7) suit, be provided with the backward flow chamber in backward flow board (7), the one end of telescopic link (6) with the lateral wall in backward flow chamber is connected, the other end of telescopic link (6) with separation blade (5) are connected, it is provided with the wall groove to mould plastics mouth (1), separation blade (5) with wall groove sliding connection, the right-hand member of separation blade (5) is provided with air guide groove (11), the left end of pneumatic tube (4) is passed the right-hand member of backward flow board (7) injects the backward flow intracavity.

2. A hot-melt injection molding head for freeze-proofing injection molding according to claim 1, wherein the injection nozzle (1) has a conical structure.

3. A hot-melt injection molding head for freeze-proofing injection molding according to claim 2, wherein a spill-proof gasket (12) is sleeved outside the right portion of the injection nozzle (1).

4. The anti-freezing hot-melt injection molding head for injection molding according to claim 3, wherein a sealing gasket (13) is arranged in the backflow cavity, and the sealing gasket (13) is tightly attached to the side wall of the baffle plate (5).

5. The hot-melt injection molding head for freeze-proofing injection molding according to claim 4, further comprising a plurality of sets of fixing rings (14), wherein one end of each set of fixing rings (14) is connected with the outer side of the heat conducting layer (9), the plurality of sets of fixing rings (14) are respectively sleeved with the plurality of sets of electric heating tubes (8), and the other ends of the plurality of sets of fixing rings (14) are respectively connected with the inner side of the heat insulating layer (10).

6. A hot-melt injection molding head for freeze-proofing injection molding according to claim 5, further comprising two sets of mounting springs (15), two sets of mounting posts (16), and two sets of push blocks (17), the front end and the rear end of the injection nozzle (1) are respectively provided with a mounting hole, the front part and the rear part of the reflux plate (7) are respectively provided with a mounting cavity, one end of each of two groups of mounting springs (15) is respectively connected with the side walls of the two groups of mounting cavities, the other end of each of the two groups of mounting springs (15) is respectively connected with one end of each of two groups of mounting columns (16), the other end of each of the two groups of mounting columns (16) respectively penetrates through the two groups of mounting cavities and is inserted into the two groups of mounting holes, the right-hand member of backward flow board (7) is provided with two sets of spouts, and is two sets of the left end of ejector pad (17) is respectively with two sets of the right-hand member of erection column (16) is connected, and is two sets of the right-hand member of ejector pad (17) passes two sets of respectively the spout.

7. A hot-melt injection molding head for freeze-proofing injection molding according to claim 6, wherein the right ends of the two sets of push blocks (17) are provided with anti-slip pads (18).

8. A hot-melt injection molding head for freeze-proofing injection molding according to claim 7, wherein the two sets of mounting posts (16) are in a right-angled trapezoid structure, and the inclined ends of the two sets of mounting posts (16) face to the right of the inner side.