CN216578914U

CN216578914U - Waste heat recovery device of injection molding machine

Info

Publication number: CN216578914U
Application number: CN202122142863.0U
Authority: CN
Inventors: 周永
Original assignee: Zhuozhou Weihang Rubber And Plastic Products Co ltd
Current assignee: Zhuozhou Weihang Rubber And Plastic Products Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-05-24
Anticipated expiration: 2031-09-07

Abstract

The utility model discloses a waste heat recovery device of an injection molding machine, which relates to the technical field of waste heat recovery devices and comprises a rack, an injection assembly and a mold assembly, wherein the upper end of a base is connected with the injection assembly in a sliding manner, the upper end of one side of the injection assembly is provided with a feed hopper, the surface of one side, close to the mold assembly, of the injection assembly is provided with a charging barrel, the surface of the charging barrel is coated with a recovery pipe, and one side of the injection assembly, located at the upper end of the recovery pipe, is provided with a recovery box. According to the injection component, the recovery pipe is arranged on the surface of the charging barrel, heat generated by the charging barrel is collected through the heat conduction layer and the heat insulation layer, hot gas is conveyed into the recovery box through the gas conveying pipe and is heated through the heating rod, and finally the hot gas is conveyed into the injection component through the circulating pipe again, so that materials in the injection component can be preheated, the heating effect of the charging barrel can be effectively improved, the waste of heat generated by the charging barrel is avoided, resources are saved, and the waste effect is reduced.

Description

Waste heat recovery device of injection molding machine

Technical Field

The utility model relates to the technical field of waste heat recovery devices, in particular to a waste heat recovery device of an injection molding machine.

Background

Injection molding machines are also known as injection molding machines or injection molding machines. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. It is divided into vertical, horizontal and full electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The injection molding machine is in the production course of working of moulding plastics, and the feed cylinder can produce a large amount of heats, and the heat that current injection molding machine feed cylinder produced generally all directly discharges in the air, and this is the waste of an energy undoubtedly, consequently needs to set up a device to retrieve the waste heat of feed cylinder and recycle, reaches the energy saving, reduces extravagant effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a waste heat recovery device of an injection molding machine, which aims to solve the problem that the heat generated by the existing injection molding machine charging barrel in the background technology is generally directly discharged into the air, so that the energy is wasted.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

a waste heat recovery device of an injection molding machine comprises a rack, an ejection assembly and a mold assembly, wherein a base is arranged at the upper end of one side of the rack, the upper end of the base is connected with the ejection assembly in a sliding manner, the mold assembly is arranged at the upper end of the other side of the rack, a feed hopper is arranged at the upper end of one side of the ejection assembly, a charging barrel is arranged on the surface of one side, close to the mold assembly, of the ejection assembly, a recovery tube is wrapped on the surface of the charging barrel, a recovery box is arranged at the upper end, located at the recovery tube, of one side of the ejection assembly, the recovery tube comprises an air guide cover, a gas pipe, a heat guide layer, a heat insulation layer, a clamping block, a clamping groove, a connecting block and a bolt, a heat guide layer is arranged on the inner surface of the recovery tube, the heat insulation layer is arranged on the outer surface of the heat guide layer, through holes are formed in the surfaces of the two sides of the recovery tube, and the air guide cover is arranged at the through holes, the gas-leading cover one end is pegged graft and is had the gas-supply pipe, the recovery tube still includes two semicircle pipes, one of them the terminal surface of semicircle pipe is provided with the fixture block, and the other end the draw-in groove has been seted up to the terminal surface of semicircle pipe, two the semicircle pipe passes through the mutual joint of fixture block and draw-in groove, two the both ends surface of semicircle pipe all is provided with the connecting block, the middle part of connecting block is provided with the bolt.

Preferably, the recycling bin comprises an air inlet, a centrifugal fan, an air outlet, a circulating pipe, a fixing plate and heating rods, the air inlet is formed in the middle of the surface of each of two sides of the recycling bin, the centrifugal fan is arranged on one side, located at the air inlet, of the inside of the recycling bin, the air outlet is formed in one side, close to the feed hopper, of the recycling bin, the circulating pipe is inserted into one side of the air outlet, the fixing plate is arranged at the bottom end of the inside of the recycling bin, and the heating rods are arranged at the upper end of the fixing plate.

Preferably, one end of the gas pipe, which is far away from the gas-leading cover, is inserted into the gas inlet of the recovery box, and the recovery pipe is fixedly connected with the recovery box through the gas pipe.

Preferably, one end of the circulation tube penetrates through the injection assembly and extends to the inside of the injection assembly.

Compared with the prior art, the utility model provides a waste heat recovery device of an injection molding machine, which has the following beneficial effects:

according to the injection molding machine, the recovery pipe is arranged on the surface of the charging barrel, heat generated by the charging barrel is collected through the heat conduction layer and the heat insulation layer, hot gas is conveyed into the recovery box through the gas conveying pipe and is heated through the heating rod, and finally the hot gas is conveyed into the injection molding assembly through the circulating pipe again, so that the preheating treatment can be performed on materials in the injection molding assembly, the heating effect of the charging barrel can be effectively improved, the working effect is improved, the waste of heat generated by the charging barrel is avoided, resources are saved, and the waste effect is reduced.

Drawings

FIG. 1 is a schematic structural view of a waste heat recovery device of an injection molding machine according to the present invention;

FIG. 2 is a schematic view of the recycling pipe and recycling bin of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 according to the present invention;

the reference numbers in the figures are:

1. a frame; 2. a base; 3. an ejection assembly; 4. a feed hopper; 5. a mold assembly; 6. a charging barrel; 7. a recovery pipe; 8. a recycling bin; 9. an air introducing cover; 10. a gas delivery pipe; 11. an air inlet; 12. a centrifugal fan; 13. an air outlet; 14. a circulation pipe; 15. a fixing plate; 16. a heating rod; 17. a heat conductive layer; 18. a thermal insulation layer; 19. a clamping block; 20. a card slot; 21. connecting blocks; 22. and (4) bolts.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-3, a waste heat recovery device of an injection molding machine comprises a frame 1, an ejection assembly 3 and a mold assembly 5, wherein a base 2 is arranged at the upper end of one side of the frame 1, the upper end of the base 2 is connected with the ejection assembly 3 in a sliding manner, the mold assembly 5 is arranged at the upper end of the other side of the frame 1, a feed hopper 4 is arranged at the upper end of one side of the ejection assembly 3, a charging barrel 6 is arranged on the surface of one side of the ejection assembly 3 close to the mold assembly 5, a recovery tube 7 is coated on the surface of the charging barrel 6, a recovery box 8 is arranged at the upper end of the recovery tube 7 at one side of the ejection assembly 3, the recovery tube 7 comprises an air guide cover 9, an air guide pipe 10, a heat conduction layer 17, a heat conduction layer 18, a clamping block 19, a clamping groove 20, a connecting block 21 and a bolt 22, a heat conduction layer 17 is arranged on the inner surface of the recovery tube 7, the heat conduction layer 17 is made of metal aluminum, and has the advantage of good heat conduction effect at the first cost, and the outer surface of the heat conduction layer 17 is provided with the heat conduction layer 18, the heat insulation layer 18 is made of glass fiber, through holes are arranged on the surfaces of the two sides of the recovery pipe 7, the recovery pipe 7 penetrates through the recovery pipe 7, an air guide cover 9 is arranged at the through hole of the recovery pipe 7, one end of the air guide cover 9 is inserted with an air conveying pipe 10, the recovery pipe 7 further comprises two semicircular pipes, the end face of one of the semi-circular pipes is provided with a clamping block 19, the end face of the other semi-circular pipe is provided with a clamping groove 20, the two semi-circular pipes are mutually clamped through the clamping block 19 and the clamping groove 20, the two end surfaces of the two semi-circular pipes are respectively provided with a connecting block 21, the middle part of the connecting block 21 is provided with a bolt 22, the two semi-circular pipes are firstly clamped through the clamping block 19 and the clamping groove 20 and then fixedly connected through the connecting block 21 and the bolt 22, so that the two semi-circular pipes form a recovery pipe 9 to coat the charging barrel 6, the charging barrel 6 is subjected to heat collection, and the two semicircular pipes are connected through the bolts 22 to form the recovery pipe 9 which is convenient to disassemble.

The collection box 8 includes air inlet 11, centrifugal fan 12, the gas outlet 13, the circulating pipe 14, fixed plate 15 and heating rod 16, air inlet 11 has been seted up at the both sides surface middle part of collection box 8, the inside one side that is located air inlet 11 of collection box 8 is provided with centrifugal fan 12, centrifugal fan 12 attracts the inside hot gas of gas-supply pipe 10 to the collection box 8 inside, gas outlet 13 has been seted up to one side that collection box 8 is close to feeder hopper 4, it has circulating pipe 14 to peg graft in one side of gas outlet 13, the inside bottom of collection box 8 is provided with fixed plate 15, the upper end of fixed plate 15 is provided with a plurality of heating rods 16, the heating, 16 can carry out heat treatment to the inside hot gas of collection box 8, thereby improve the gas temperature, and then provide the preheating effect of material.

One end of the gas pipe 10 far away from the gas guiding cover 9 is connected with a gas inlet 11 of the recovery box 8 in an inserting mode, the recovery pipe 7 is fixedly connected with the recovery box 8 through the gas pipe 10, and the recovery pipe 7 is communicated with the recovery box 8 through the gas pipe 10, so that hot gas in the recovery pipe 7 is conveyed to the interior of the recovery box 8 and then is further processed by the recovery box 8.

Specifically, one end of the circulating pipe 14 penetrates through the injection assembly 3 and extends into the injection assembly 3 to preheat the material in the injection assembly 3, so that the heating effect of the charging barrel 6 can be effectively improved, the working effect is improved, the condition of heat waste generated by the charging barrel 6 is avoided, the resource is saved, and the waste effect is reduced.

The working principle and the using process of the utility model are as follows: after the injection molding machine is installed, when the injection molding machine is used without errors in inspection, the connecting block 21 is fixedly connected through the bolt 22, so that the recovery pipe 7 is fixed on the surface of the charging barrel 3, when the charging barrel 3 generates heat during work, the heat is conveyed into the gas conveying pipe 10 through the heat conduction layer 17 and the heat insulation layer 18 arranged on the recovery pipe 7, the heat in the gas conveying pipe 10 is sucked into the recovery box 8 under the action of the centrifugal fan 12 in the recovery box 8, and is further heated by the heating rod 16, so that the temperature of hot gas is increased, and then the hot gas is conveyed into the injection assembly 3 through the circulating pipe 14 to preheat materials in the injection assembly 3, so that the heating effect of the charging barrel 6 can be effectively improved, the working effect is improved, the waste of heat generated by the charging barrel 6 is avoided, resources are saved, and the waste effect is reduced.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an injection molding machine waste heat recovery device, includes frame (1), jets out subassembly (3) and mould subassembly (5), its characterized in that: the injection molding machine is characterized in that a base (2) is arranged at the upper end of one side of a rack (1), an injection assembly (3) is connected to the upper end of the base (2) in a sliding manner, a mold assembly (5) is arranged at the upper end of the other side of the rack (1), a feed hopper (4) is arranged at the upper end of one side of the injection assembly (3), a feed cylinder (6) is arranged on the surface of one side, close to the mold assembly (5), of the injection assembly (3), a recovery tube (7) is wrapped on the surface of the feed cylinder (6), a recovery box (8) is arranged at the upper end, located at the upper end of the recovery tube (7), of one side of the injection assembly (3), the recovery tube (7) comprises an air guide cover (9), an air conveying pipe (10), a heat conduction layer (17), a heat insulation layer (18), a clamping block (19), a clamping groove (20), a connecting block (21) and a bolt (22), the heat conduction layer (17) is arranged on the inner surface of the recovery tube (7), the surface of heat-conducting layer (17) is provided with insulating layer (18), the through-hole has been seted up on the both sides surface of recovery tube (7), and through running through recovery tube (7), recovery tube (7) are located through-hole department and are provided with induced air cover (9), the one end of induced air cover (9) is pegged graft and is had gas-supply pipe (10), recovery tube (7) still include two semicircle pipes, one of them the terminal surface of semicircle pipe is provided with fixture block (19), the other end draw-in groove (20) have been seted up to the terminal surface of semicircle pipe, two the semicircle pipe passes through fixture block (19) and the mutual joint of draw-in groove (20), two the both ends surface of semicircle pipe all is provided with connecting block (21), the middle part of connecting block (21) is provided with bolt (22).

2. The waste heat recovery device of the injection molding machine according to claim 1, characterized in that: the recycling bin (8) comprises an air inlet (11), a centrifugal fan (12), an air outlet (13), a circulating pipe (14), a fixing plate (15) and heating rods (16), wherein the air inlet (11) is formed in the middle of the surfaces of the two sides of the recycling bin (8), the centrifugal fan (12) is arranged on one side, located on the air inlet (11), of the inside of the recycling bin (8), the air outlet (13) is formed in one side, close to the feeding hopper (4), of the recycling bin (8), the circulating pipe (14) is inserted into one side of the air outlet (13), the fixing plate (15) is arranged at the bottom end of the inside of the recycling bin (8), and the plurality of heating rods (16) are arranged at the upper end of the fixing plate (15).

3. The waste heat recovery device of the injection molding machine according to claim 1, characterized in that: one end of the gas pipe (10) far away from the gas guiding cover (9) is inserted into a gas inlet (11) of the recovery box (8), and the recovery pipe (7) is fixedly connected with the recovery box (8) through the gas pipe (10).

4. The waste heat recovery device of the injection molding machine according to claim 2, characterized in that: one end of the circulating pipe (14) penetrates through the injection assembly (3) and extends into the injection assembly (3).