CN117584408A - Automobile rubber and plastic part injection molding machine with waste heat recovery mechanism - Google Patents
Automobile rubber and plastic part injection molding machine with waste heat recovery mechanism Download PDFInfo
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- CN117584408A CN117584408A CN202311834957.1A CN202311834957A CN117584408A CN 117584408 A CN117584408 A CN 117584408A CN 202311834957 A CN202311834957 A CN 202311834957A CN 117584408 A CN117584408 A CN 117584408A
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- 239000004033 plastic Substances 0.000 title claims abstract description 30
- 229920003023 plastic Polymers 0.000 title claims abstract description 30
- 238000001746 injection moulding Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000002918 waste heat Substances 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 238000004321 preservation Methods 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000001125 extrusion Methods 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000005086 pumping Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 238000002309 gasification Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 238000012546 transfer Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 239000011551 heat transfer agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of rubber and plastic injection molding machines, and particularly relates to an automobile rubber and plastic part injection molding machine with a waste heat recovery mechanism. The heat preservation sleeve is sleeved outside the pusher, the cavity is formed in the heat preservation sleeve, and heat insulation liquid is added into the cavity, so that the pusher and the heater can be guaranteed to be sealed in a stable space, heat dissipation of the pusher and the heater is slowed down, the heater is prevented from being used for compensating heat dissipation, continuous high-power work is avoided, and non-acting loss of electric energy is reduced.
Description
Technical Field
The invention relates to the technical field of rubber and plastic injection molding machines, in particular to an automobile rubber and plastic part injection molding machine with a waste heat recovery mechanism.
Background
Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment for producing plastic products of various shapes from thermoplastic or thermosetting plastics by using plastic molding dies, and are divided into vertical, horizontal and all-electric type, and the injection molding machines can heat the plastics, apply high pressure to the molten plastics, and make the molten plastics be ejected to fill the die cavity of the dies.
The patent document with publication number CN209580360U discloses a molten plastic conveying mechanism for an injection molding machine, wherein a head temperature sensing wire, a heater, a hot nozzle body and a body temperature sensing wire are arranged, so that the heating temperature can be adjusted according to the specific material properties of different materials, and the molten plastic can be heated in two sections;
the existing material conveying mechanism of the injection molding machine only has a heating pushing function, the electromagnetic heater melts plastic particles, the screw rod pusher pushes the plastic particles into the injection molding machine, but because the electromagnetic heater is sleeved outside the screw rod pusher, unavoidable continuous heat loss exists, and continuous heating and temperature maintenance are required.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an automobile rubber and plastic part injection molding machine with a waste heat recovery mechanism.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the heat exchanger is provided with a heat preservation sleeve, two ports of the heat preservation sleeve are opposite, a pusher and a heater of a penetrating port are arranged in the heat preservation sleeve, the heat preservation sleeve adopts a hollow structure to form a cavity, heat insulation liquid is filled in the cavity, a heat exchange tube communicated with the cavity is arranged at the top end of the heat preservation sleeve, the heat exchange tube temporarily accommodates heat absorption and gasification heat insulation liquid, a heat exchange shell is sleeved outside the heat exchange tube, and liquid heat transfer agent is filled in the heat exchange shell to absorb heat of the heat exchange tube;
the compensation heater comprises a hollow bushing, the bushing is sleeved outside the extrusion port of the pusher, the bushing is respectively connected with a compressor and an expansion valve through two pipelines, the compressor and the expansion valve are communicated through an outer spiral pipe and an inner spiral pipe which are connected in series, the bushing, the pipelines, the outer spiral pipe and the inner spiral pipe are filled with cooling media, the cooling media are pressurized and pushed by the compressor, the cooling media are liquefied by heat release at the bushing position and depressurized after flowing through the expansion valve, and the positions of the outer spiral pipe and the inner spiral pipe absorb heat and gasify;
the circulating assembly comprises a water inlet pipe and a water outlet pipe, wherein the upper parts of the water inlet pipe and the water outlet pipe are respectively connected with a dispersing pipe and a collecting pipe, the dispersing pipe and the collecting pipe are opposite to each other front and back and are connected in series through a heat exchange shell, a pumping device is arranged at the lower part of the water outlet pipe in series, a U-shaped pipe is connected between the pumping device and the water inlet pipe in series, and a heat conducting agent circularly flows between the high-temperature heat exchange shell and the low-temperature U-shaped pipe;
the conduction assembly is provided with a cylinder, the outer spiral tube and the inner spiral tube are arranged in the cylinder in a concentrated manner, and the outer spiral tube and the inner spiral tube are arranged in a sealed space in a concentrated manner.
Preferably, the outer side of the heat preservation sleeve is covered with a housing, the housing is provided with a rectangular cavity for accommodating the heat preservation sleeve, and the rectangular cavity is filled with heat insulation cotton;
the heat preservation sleeve is matched with heat insulation liquid to partition a channel for dissipating heat from the heater to the atmosphere, heat dissipation to the outside atmosphere is further reduced through heat insulation cotton, heat is gathered around the pusher, and meaningless waste caused by the fact that heat is dissipated to the periphery is avoided.
Preferably, the heat exchange tube is provided with a plurality of vertical tube groups, one end of each vertical tube group is communicated with the corresponding vertical tube group, and the other end of each vertical tube group is provided with a horizontal part extending forwards and backwards;
the space in which gasified heat-insulating liquid can be dispersed is improved, the heat exchange area is enlarged, rapid heat dissipation is carried out, the heat can be dissipated when the temperature is too high, and the stability of the working temperature is ensured.
Preferably, one end of the horizontal part far away from the vertical pipe group is provided with a return pipe which extends obliquely towards the direction of the heat preservation sleeve, and the lower end of the return pipe is connected with the side wall of the lower part of the vertical pipe group in a conducting way;
the cooled liquid heat-insulating liquid can smoothly flow back, and the phenomenon that the liquid level is reduced due to the fact that the heat-insulating liquid cannot flow back in the heat exchange tube due to the fact that the heat-insulating liquid gathers is avoided, and the heat-insulating effect is affected.
Preferably, the top of the heat exchange tube is provided with a vertical plug ring, an inner ring is inserted in the plug ring in a sliding way, a sliding frame is arranged at the top end of the inner ring, and a limiting plate is arranged at one end of the inner ring, which is positioned at the inner side of the heat exchange tube;
when the pressure in the heat exchange tube is excessively increased, the inner ring can slide upwards in the plug ring, so that the volume of the inner space of the heat exchange tube is increased, the internal pressure of the heat exchange tube is reduced, and the influence and damage of high pressure on the heat exchange tube are reduced.
Preferably, the collecting pipe and the dispersing pipe are provided with a plurality of openings communicated with the heat exchange shell, the sliding frame extends back and forth to form a plurality of plate-shaped parts, the plate-shaped parts are connected with end plates which are in sliding sealing with the openings of the collecting pipe and the dispersing pipe, a sliding gap is reserved between the top of the sliding frame and the top of the heat exchange shell, and a pressure spring is arranged between the sliding frame and the heat exchange shell;
the ascending of end plate can increase the degree of opening of collecting pipe and dispersion pipe open-ended, improves the circulation of heat transfer agent in the heat exchange shell, alright heat transfer efficiency that can improve makes the heat exchange tube and contact more heat transfer agent in the unit time, makes the quick liquefaction of gasified heat-proof liquid, quick reduction heat exchange tube internal pressure, and the pressure spring guarantees heat exchange tube internal pressure reduction, and the balladeur train can reset smoothly.
Preferably, an extension plate higher than the front end of the carriage is arranged at one end close to the collecting pipe, and the end plates are respectively arranged at the rear end of the extension plate and the front end of the carriage;
the position of the collecting pipe is higher than that of the dispersing pipe, so that the liquid inlet point is lower than the liquid outlet point, the heat exchange shell is ensured to be stably filled with the heat conducting agent, the heat exchange pipe is ensured to be thoroughly wrapped and soaked, and the heat exchange stability is ensured.
Preferably, the compensating heater is provided with a shell, the shell wraps the bushing, and a heat insulation filler is arranged between the bushing and the shell;
the bushing is wrapped by the shell, and the heat insulation filler is arranged in a gap between the bushing and the extrusion opening, so that the bushing and the extrusion opening can be insulated, and the stability of the temperature of the extrusion opening is ensured.
Preferably, the outer spiral tube is sleeved outside the inner spiral tube, an annular gap is reserved between the outer spiral tube and the inner spiral tube, and the U-shaped tube passes back and forth between the outer spiral tube and the inner spiral tube through the annular gap;
the U-shaped pipe passes back and forth between the outer spiral pipe and the inner spiral pipe through the annular gap, so that the effective heat exchange surface area can be increased, the U-shaped pipe is absorbed simultaneously inside and outside, and the U-shaped pipe is ensured to be heated stably.
Preferably, the cylinder is filled with heat conduction oil, and the heat conduction oil completely fills the gaps among the U-shaped pipe, the outer spiral pipe and the inner spiral pipe;
in order to avoid abrasion caused by direct contact between the outer spiral tube and the inner spiral tube and the U-shaped tube, the outer spiral tube and the inner spiral tube are separated from the U-shaped tube by one end, but the heat conduction capacity of air is poor, so that in the embodiment, the heat conduction oil is fully filled in the gap among the U-shaped tube, the outer spiral tube and the inner spiral tube in combination with the requirement of rapid heat exchange, and the air is replaced by means of the efficient heat conduction effect of the heat conduction oil so as to achieve the task of rapid heat exchange.
Compared with the prior art, the invention has the advantages that:
1. through the arrangement of the heat preservation sleeve, the heat preservation sleeve is sleeved outside the pusher, a cavity is arranged in the heat preservation sleeve, and heat insulation liquid is added into the cavity, so that the pusher and the heater can be ensured to be sealed in a stable space, heat dissipation of the pusher and the heater is slowed down, the heater is prevented from compensating heat dissipation, continuous high-power work is avoided, and non-acting loss of electric energy is reduced;
2. through the arrangement of the heat exchanger, when the temperature of the pusher is too high due to insufficient heating precision, heat-insulating liquid is gasified and floats to the heat exchange tube to exchange heat with the heat-conducting agent in the heat exchanger, and is liquefied and returned to the heat-insulating sleeve, the cavity of the heat-insulating sleeve is backfilled, stable heat isolation is continuously kept, meanwhile, redundant heat is recovered, and the heat is transferred to the compensation heater at the extrusion port of the pusher, so that compensation heat is provided for the extrusion port, and blockage caused by cooling and solidification of materials in a narrow extrusion port is avoided;
3. through the setting of heat exchange tube, heat exchange tube top slip joint balladeur train, along with the gasification of thermal-insulated liquid, can make the inside atmospheric pressure of heat exchange tube rise, the internal pressure that the heat exchange tube risees can be used in the balladeur train bottom, overcome the resistance of balladeur train and make the balladeur train go upward, just can drive the end plate and go upward the circulation subassembly that will block and open, make the heat transfer agent can circulate heat exchanger and heat exchange tube and exchange heat, and along with the rising of heat exchange tube internal pressure, the end plate upward extent also can increase and improve the heat transfer agent circulation, carry out the heat transfer adaptation that more is quick and fluctuate by a wide margin, guarantee the heat exchange tube internal pressure is stable.
Drawings
FIG. 1 is a schematic left-hand view of the present invention;
FIG. 2 is a cut-away block diagram of the present invention;
FIG. 3 is a schematic illustration of the locations between the insulation sleeve, heat exchanger and compensation heater;
FIG. 4 is a schematic cut-away view between the circulation assembly and the compensating heater;
FIG. 5 is a schematic view of a cut-away view between a heat retaining sleeve, heat exchange tube and heat exchanger;
FIG. 6 is a schematic view of the structure between the heat retaining sleeve, heat exchange tube and heat exchanger;
FIG. 7 is a schematic view of the separation between the heat exchange tube and the carriage;
fig. 8 is a schematic view of the locations between the compensating heater, coil and U-tube.
In the figure:
the heat exchanger 1, the heat exchange shell 11, the heat insulating jacket 12, the cavity 121, the heat exchange tube 13, the return tube 131, the plug ring 132, the carriage 14, the end plate 141, the compression spring 142, the extension plate 143, the inner ring 144, the limiting plate 145, the housing 15, the circulation assembly 2, the water inlet tube 21, the dispersion tube 211, the water outlet tube 22, the collection tube 221, the pump 23, the conduction assembly 3, the cylinder 31, the outer spiral tube 32, the inner spiral tube 321, the U-shaped tube 33, the compensation heater 4, the housing 41, the heat insulating filler 42, the bushing 43, the compressor 44, the expansion valve 441, the pusher 5, and the heater 51.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments.
Example 1
The embodiment provides an automobile rubber and plastic part injection molding machine with a waste heat recovery mechanism, wherein a main body comprises a heat exchanger 1 sleeved outside a pusher 5 and a heater 51, a compensation heater 4 sleeved at an extrusion port of the pusher 5, a circulating assembly 2 and a conducting assembly 3 for heat recovery and utilization between the heat exchanger 1 and the compensation heater 4, and an injection mold not shown in the drawing.
Referring to fig. 6, a heat exchanger 1 is provided with a heat preservation sleeve 12, two ports of the heat preservation sleeve 12 are opposite, a pusher 5 and a heater 51 penetrating through the ports are arranged in the heat preservation sleeve 12, the heat preservation sleeve 12 adopts a hollow structure to form a cavity 121, heat insulation liquid is filled in the cavity 121, a heat exchange tube 13 communicated with the cavity 121 is arranged at the top end of the heat preservation sleeve 12, the heat exchange tube 13 temporarily accommodates heat insulation liquid for absorbing heat and gasifying, a heat exchange shell 11 is sleeved outside the heat exchange tube 13, and liquid heat conducting agent is filled in the heat exchange shell 11 to absorb heat of the heat exchange tube 13;
referring to fig. 8, the compensating heater 4 includes a hollow bushing 43, wherein the bushing 43 is sleeved outside the extrusion port of the pusher 5, the bushing 43 is respectively connected with a compressor 44 and an expansion valve 441 through two pipelines, the compressor 44 and the expansion valve 441 are communicated through an outer spiral pipe 32 and an inner spiral pipe 321 which are connected in series, and refrigerant is filled in the bushing 43, the pipelines, the outer spiral pipe 32 and the inner spiral pipe 321, pressurized and pushed by the compressor 44, releases heat and liquefies at the position of the bushing 43, and is depressurized after flowing through the expansion valve 441, and absorbs heat and gasifies at the positions of the outer spiral pipe 32 and the inner spiral pipe 321;
referring to fig. 2, the circulation assembly 2 includes a water inlet pipe 21 and a water outlet pipe 22, wherein upper parts of the water inlet pipe 21 and the water outlet pipe 22 are respectively connected with a dispersing pipe 211 and a collecting pipe 221, the dispersing pipe 211 and the collecting pipe 221 are opposite to each other and are connected in series through a heat exchange shell 11, referring to fig. 2, a pumping device 23 is installed in series at the lower part of the water outlet pipe 22, referring to fig. 4, a U-shaped pipe 33 is connected in series between the pumping device 23 and the water inlet pipe 21, and a heat conductive agent circularly flows between the high-temperature heat exchange shell 11 and the low-temperature U-shaped pipe 33;
referring also to fig. 4, the conductive assembly 3 has a cylinder 31, and the outer and inner coils 32 and 321 and the U-shaped tube 33 are centrally disposed in the closed space.
The above-mentioned assembly has three closed circulation channels, and the associated components of the heat exchanger 1, the compensation heater 4, the circulation assembly 2 and the conduction assembly 3 are further described below with reference to the drawings:
for the heat preservation sleeve 12, referring to fig. 2, a housing 15 is covered on the outer side of the heat preservation sleeve 12, the housing 15 is provided with a rectangular cavity for accommodating the heat preservation sleeve 12, heat insulation cotton is filled in the rectangular cavity, when the heater 51 works, the heat preservation sleeve 12 is matched with heat insulation liquid to block a channel for dissipating heat of the heater 51 into the atmosphere, and the heat dissipation into the external atmosphere is further reduced through the heat insulation cotton, so that the heat is accumulated around the pusher 5, and meaningless waste caused by the heat dissipation to the periphery is avoided;
with reference to fig. 5, the specific structure of the heat exchange tube 13 will be described in addition to the following:
1. when the heater 51 is unstable in operation and is excessively heated, the heated temperature is higher than the boiling point of the heat insulation liquid, so that the heat insulation liquid is gasified and absorbed to generate excessive heat, the gasified heat insulation liquid flows into the heat exchange tube 13, and the heat exchange tube 13 is provided with a plurality of vertical tube groups, one end of each vertical tube group is communicated with the corresponding vertical tube group, and the other end of each vertical tube group is provided with a horizontal part extending forwards and backwards, so that the dispersible space of the gasified heat insulation liquid can be increased, the heat exchange area is enlarged, rapid heat dissipation can be carried out, and the heat can be dissipated when the temperature is excessively high, and the stability of the working temperature is ensured;
2. the horizontal part is kept away from vertical nest of tubes one end and is provided with the back flow 131 to the slope of heat preservation cover 12 direction extension, and back flow 131 lower extreme and vertical nest of tubes lower part lateral wall switch-on connection make the liquid heat insulating liquid after the cooling backward flow that can be smooth, avoid heat insulating liquid gathering can't backward flow in heat exchange tube 13 to lead to the liquid level to reduce, influence thermal-insulated effect.
The core of this application includes carrying out recycle to unnecessary heat, consequently, as shown in fig. 5, the thermal-insulated liquid of gasification produces the heat at liquefaction backward flow, can be absorbed by the liquid heat conduction agent that fills in the heat exchange shell 11, high temperature heat conduction agent is wrapped up in the heat and is held in U-shaped pipe 33 position by the push of pump sending ware 23, and circulate the heat conduction agent of low temperature in the heat exchange shell 11, continuous contact heat exchange tube 13 carries out heat exchange absorption, and U-shaped pipe 33 position has outer spiral pipe 32 and interior spiral pipe 321, the work of compressor 44, can reduce the temperature of outer spiral pipe 32 and interior spiral pipe 321, heat absorption of U-shaped pipe 33 is walked, and carry to bush 43 position, carry out the supplementary heating of pusher 5 extrusion mouth, guarantee that the molten material in the narrow extrusion mouth can not solidify because of the temperature change that moulds plastics, solidification and pusher 5 cooling produced, through the cyclic utilization of heat, guarantee to switch on smoothly, and reduce the heating power originally of the heater of extrusion mouth position.
Example 2
In this embodiment, an injection molding machine for an automobile rubber and plastic part with a waste heat recovery mechanism is provided, and as shown in fig. 5 to 7, the main body comprises a heat exchanger 1 and a circulating assembly 2 arranged in front of the heat exchanger 1.
Referring to fig. 5 and 6, a vertical insertion ring 132 is arranged at the top of the heat exchange tube 13, an inner ring 144 is inserted in the insertion ring 132 in a sliding manner, a carriage 14 is mounted at the top end of the inner ring 144, and a limiting plate 145 is mounted at one end of the inner ring 144, which is positioned at the inner side of the heat exchange tube 13;
referring to fig. 6 and 7, the collecting pipe 221 and the dispersing pipe 211 are provided with a plurality of openings communicated with the heat exchange shell 11, the carriage 14 extends back and forth to form a plurality of plate-shaped parts, the plate-shaped parts are connected with end plates 141 which are in sliding sealing with the openings of the collecting pipe 221 and the dispersing pipe 211, a sliding gap is reserved between the top of the carriage 14 and the top of the heat exchange shell 11, and a pressure spring 142 is arranged between the carriage 14 and the heat exchange shell 11;
referring to fig. 6, an extension plate 143 is disposed at one end near the manifold 221 and higher than the front end of the carriage 14, and end plates 141 are disposed at the rear end of the extension plate 143 and the front end of the carriage 14, respectively.
In this embodiment, a set of emergency treatment system is manufactured for possible accidents, that is, when the temperature in the heat exchange tube 13 is too high and the gasified heat insulation liquid is too much to raise the internal pressure of the heat exchange tube 13 too much, the inner ring 144 will slide upwards in the plugging ring 132, so as to increase the volume of the internal space of the heat exchange tube 13, reduce the internal pressure of the heat exchange tube 13, reduce the influence and damage of the high pressure on the heat exchange tube 13, and the pressure spring 142 ensures that the internal pressure of the heat exchange tube 13 is reduced and the carriage 14 can be reset smoothly.
Of course, this embodiment also solves the problem from another aspect, that is, when the inner ring 144 goes up, the sliding frame 14 drives the end plate 141 to go up, and the end plate 141 goes up, so that the opening degree of the openings of the collecting pipe 221 and the dispersing pipe 211 can be increased, the heat transfer efficiency can be improved, the heat transfer pipe 13 can be enabled to contact more heat transfer agent in unit time, the gasified heat insulation liquid can be quickly liquefied, the internal pressure of the heat transfer pipe 13 can be quickly reduced, the collecting pipe 221 is higher than the dispersing pipe 211, the liquid inlet point can be ensured to be lower than the liquid outlet point, the heat transfer shell 11 can be ensured to be stably filled with the heat transfer agent, the heat transfer pipe 13 can be ensured to be thoroughly wrapped and soaked, and the heat transfer stability can be ensured.
The present embodiment is identical in other working mechanisms except that the heat exchange tube 13 is different from the specific structure of the heat exchange tube 13 in embodiment 1, and therefore, for convenience of review, the partial contents of embodiment 1 are duplicated below.
Referring to fig. 6, a heat exchanger 1 is provided with a heat preservation sleeve 12, two ports of the heat preservation sleeve 12 are opposite, a pusher 5 and a heater 51 penetrating through the ports are arranged in the heat preservation sleeve 12, the heat preservation sleeve 12 adopts a hollow structure to form a cavity 121, heat insulation liquid is filled in the cavity 121, a heat exchange tube 13 communicated with the cavity 121 is arranged at the top end of the heat preservation sleeve 12, the heat exchange tube 13 temporarily accommodates heat insulation liquid for absorbing heat and gasifying, a heat exchange shell 11 is sleeved outside the heat exchange tube 13, and liquid heat conducting agent is filled in the heat exchange shell 11 to absorb heat of the heat exchange tube 13;
referring to fig. 8, the compensating heater 4 includes a hollow bushing 43, wherein the bushing 43 is sleeved outside the extrusion port of the pusher 5, the bushing 43 is respectively connected with a compressor 44 and an expansion valve 441 through two pipelines, the compressor 44 and the expansion valve 441 are communicated through an outer spiral pipe 32 and an inner spiral pipe 321 which are connected in series, and refrigerant is filled in the bushing 43, the pipelines, the outer spiral pipe 32 and the inner spiral pipe 321, pressurized and pushed by the compressor 44, releases heat and liquefies at the position of the bushing 43, and is depressurized after flowing through the expansion valve 441, and absorbs heat and gasifies at the positions of the outer spiral pipe 32 and the inner spiral pipe 321;
referring to fig. 2, the circulation assembly 2 includes a water inlet pipe 21 and a water outlet pipe 22, wherein upper parts of the water inlet pipe 21 and the water outlet pipe 22 are respectively connected with a dispersing pipe 211 and a collecting pipe 221, the dispersing pipe 211 and the collecting pipe 221 are opposite to each other and are connected in series through a heat exchange shell 11, referring to fig. 2, a pumping device 23 is installed in series at the lower part of the water outlet pipe 22, referring to fig. 4, a U-shaped pipe 33 is connected in series between the pumping device 23 and the water inlet pipe 21, and a heat conductive agent circularly flows between the high-temperature heat exchange shell 11 and the low-temperature U-shaped pipe 33;
referring also to fig. 4, the conductive assembly 3 has a cylinder 31, and the outer and inner coils 32 and 321 and the U-shaped tube 33 are centrally disposed in the closed space.
The above-mentioned assembly has three closed circulation channels, and the associated components of the heat exchanger 1, the compensation heater 4, the circulation assembly 2 and the conduction assembly 3 are further described below with reference to the drawings:
for the heat preservation sleeve 12, referring to fig. 2, a housing 15 is covered on the outer side of the heat preservation sleeve 12, the housing 15 is provided with a rectangular cavity for accommodating the heat preservation sleeve 12, heat insulation cotton is filled in the rectangular cavity, when the heater 51 works, the heat preservation sleeve 12 is matched with heat insulation liquid to block a channel for dissipating heat of the heater 51 into the atmosphere, and the heat dissipation into the external atmosphere is further reduced through the heat insulation cotton, so that the heat is accumulated around the pusher 5, and meaningless waste caused by the heat dissipation to the periphery is avoided;
with reference to fig. 5, the specific structure of the heat exchange tube 13 will be described in addition to the following:
3. when the heater 51 is unstable in operation and is excessively heated, the heated temperature is higher than the boiling point of the heat insulation liquid, so that the heat insulation liquid is gasified and absorbed to generate excessive heat, the gasified heat insulation liquid flows into the heat exchange tube 13, and the heat exchange tube 13 is provided with a plurality of vertical tube groups, one end of each vertical tube group is communicated with the corresponding vertical tube group, and the other end of each vertical tube group is provided with a horizontal part extending forwards and backwards, so that the dispersible space of the gasified heat insulation liquid can be increased, the heat exchange area is enlarged, rapid heat dissipation can be carried out, and the heat can be dissipated when the temperature is excessively high, and the stability of the working temperature is ensured;
4. the horizontal part is kept away from vertical nest of tubes one end and is provided with the back flow 131 to the slope of heat preservation cover 12 direction extension, and back flow 131 lower extreme and vertical nest of tubes lower part lateral wall switch-on connection make the liquid heat insulating liquid after the cooling backward flow that can be smooth, avoid heat insulating liquid gathering can't backward flow in heat exchange tube 13 to lead to the liquid level to reduce, influence thermal-insulated effect.
The core of this application includes carrying out recycle to unnecessary heat, consequently, as shown in fig. 5, the thermal-insulated liquid of gasification produces the heat at liquefaction backward flow, can be absorbed by the liquid heat conduction agent that fills in the heat exchange shell 11, high temperature heat conduction agent is wrapped up in the heat and is held in U-shaped pipe 33 position by the push of pump sending ware 23, and circulate the heat conduction agent of low temperature in the heat exchange shell 11, continuous contact heat exchange tube 13 carries out heat exchange absorption, and U-shaped pipe 33 position has outer spiral pipe 32 and interior spiral pipe 321, the work of compressor 44, can reduce the temperature of outer spiral pipe 32 and interior spiral pipe 321, heat absorption of U-shaped pipe 33 is walked, and carry to bush 43 position, carry out the supplementary heating of pusher 5 extrusion mouth, guarantee that the molten material in the narrow extrusion mouth can not solidify because of the temperature change that moulds plastics, solidification and pusher 5 cooling produced, through the cyclic utilization of heat, guarantee to switch on smoothly, and reduce the heating power originally of the heater of extrusion mouth position.
Example 3
In this embodiment, an injection molding machine for an automobile rubber and plastic part with a waste heat recovery mechanism is provided, and the main body comprises a compensation heater 4 and a conduction assembly 3 arranged at the front side of the compensation heater 4.
Referring to fig. 2, the compensating heater 4 has a housing 41, the housing 41 wraps a liner 43, and a heat insulation filler 42 is disposed between the liner 43 and the housing 41, wherein the liner 43 is wrapped by the housing 41, and the heat insulation filler 42 is disposed in a gap between the liner 43 and the housing 41, so that the liner 43 and the extrusion opening position can be insulated, and the stability of the extrusion opening temperature is ensured.
Referring to fig. 8, the outer spiral tube 32 is sleeved outside the inner spiral tube 321 with an annular gap left between the outer spiral tube 32 and the inner spiral tube 321, and the U-shaped tube 33 passes back and forth between the outer spiral tube 32 and the inner spiral tube 321 via the annular gap.
Referring to fig. 4, the cylinder 31 is filled with heat transfer oil, which completely fills the gaps between the U-shaped pipe 33, the outer spiral pipe 32 and the inner spiral pipe 321.
The reason why the outer spiral pipe 32 and the inner spiral pipe 321 are provided and why the above-described modeling is designed are mainly considered from two viewpoints:
(1) considering that the U-shaped tube 33 absorbs waste heat and less heat, the outer spiral tube 32 and the inner spiral tube 321 are arranged in a three-dimensional way to form an inner layer and an outer layer, the U-shaped tube 33 passes back and forth between the outer spiral tube 32 and the inner spiral tube 321 through an annular gap, the effective heat exchange surface area can be increased, the U-shaped tube 33 is simultaneously absorbed in the inner layer and the outer layer, and the U-shaped tube 33 is ensured to be heated stably.
(2) Considering the mechanical vibration in the operation, in order to avoid the abrasion caused by the direct contact between the outer spiral tube 32 and the inner spiral tube 321 and the U-shaped tube 33, the outer spiral tube 32 and the inner spiral tube 321 are separated from the U-shaped tube 33 by one end distance, but the heat conduction capability of the air is poor, so in the embodiment, the heat conduction oil completely fills the gap between the U-shaped tube 33, the outer spiral tube 32 and the inner spiral tube 321 in combination with the requirement of rapid heat exchange, thereby replacing the air by the efficient heat conduction effect of the heat conduction oil so as to achieve the task of rapid heat exchange.
In addition, the control system, the power supply module, the circuit, the electronic components and the control module are all in the prior art, and can be completely realized by a person skilled in the art, so that the protection of the invention does not relate to the improvement of the internal structure and the method.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (10)
1. An automobile rubber plastic part injection molding machine with a waste heat recovery mechanism is characterized in that,
the heat exchanger (1) is provided with a heat preservation sleeve (12), two ports of the heat preservation sleeve (12) are opposite, a pusher (5) and a heater (51) which penetrate through the ports are arranged in the heat preservation sleeve (12), wherein the heat preservation sleeve (12) adopts a hollow structure to form a cavity (121), heat insulation liquid is filled in the cavity (121), a heat exchange tube (13) communicated with the cavity (121) is arranged at the top end of the heat preservation sleeve (12), the heat exchange tube (13) temporarily accommodates heat absorption and gasification heat insulation liquid, a heat exchange shell (11) is sleeved outside the heat exchange tube (13), and a liquid heat conduction agent is filled in the heat exchange shell (11) to absorb heat of the heat exchange tube (13);
the compensating heater (4) comprises a hollow bushing (43), the bushing (43) is sleeved outside the extrusion opening of the pusher (5), the bushing (43) is respectively connected with a compressor (44) and an expansion valve (441) through two pipelines, the compressor (44) and the expansion valve (441) are communicated through an outer spiral pipe (32) and an inner spiral pipe (321) which are connected in series, refrigerant is filled in the bushing (43), the pipelines, the outer spiral pipe (32) and the inner spiral pipe (321), the refrigerant is pressurized and pushed by the compressor (44), and is liquefied by heat release at the bushing (43) and reduced in pressure after flowing through the expansion valve (441), and the refrigerant absorbs heat and is gasified at the positions of the outer spiral pipe (32) and the inner spiral pipe (321);
the circulating assembly (2), the circulating assembly (2) comprises a water inlet pipe (21) and a water outlet pipe (22), wherein the upper parts of the water inlet pipe (21) and the water outlet pipe (22) are respectively connected with a dispersing pipe (211) and a collecting pipe (221), the dispersing pipe (211) and the collecting pipe (221) are opposite to each other front and back and are connected in series through a heat exchange shell (11), a pumping device (23) is arranged at the lower part of the water outlet pipe (22) in series, a U-shaped pipe (33) is connected between the pumping device (23) and the water inlet pipe (21) in series, and a heat conducting agent circularly flows between the high-temperature heat exchange shell (11) and the low-temperature U-shaped pipe (33);
a conductive member (3) has a cylinder (31), an outer spiral pipe (32) and an inner spiral pipe (321) are disposed in the cylinder (31) together with a U-shaped pipe (33), and the outer spiral pipe (32) and the inner spiral pipe (321) are disposed in the closed space together with the U-shaped pipe (33).
2. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 1, wherein a housing (15) is covered on the outer side of the heat preservation sleeve (12), the housing (15) is provided with a rectangular cavity for accommodating the heat preservation sleeve (12), and heat insulation cotton is filled in the rectangular cavity.
3. An automotive rubber-plastic part injection molding machine with a waste heat recovery mechanism according to claim 2, wherein the heat exchange tube (13) has a plurality of vertical tube groups, one end of the vertical tube group is communicated with the vertical tube group, and the other end of the vertical tube group has a horizontal part extending back and forth.
4. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 3, wherein a return pipe (131) which extends obliquely towards the direction of the heat preservation sleeve (12) is arranged at one end of the horizontal part far away from the vertical pipe group, and the lower end of the return pipe (131) is connected with the side wall of the lower part of the vertical pipe group in a conducting manner.
5. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 1, wherein a vertical inserting ring (132) is arranged at the top of the heat exchange tube (13), an inner ring (144) is inserted in the inserting ring (132) in a sliding manner, a sliding frame (14) is arranged at the top end of the inner ring (144), and a limiting plate (145) is arranged at one end of the inner ring (144) located inside the heat exchange tube (13).
6. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 5, wherein the collecting pipe (221) and the dispersing pipe (211) are provided with a plurality of openings communicated with the heat exchange shell (11), the sliding frame (14) is provided with a plurality of plate-shaped parts in a front-back extending mode, the plate-shaped parts are connected with end plates (141) which are in sliding sealing with the openings of the collecting pipe (221) and the dispersing pipe (211), a sliding gap is reserved between the top of the sliding frame (14) and the top of the heat exchange shell (11), and a pressure spring (142) is arranged between the sliding frame (14) and the heat exchange shell (11).
7. The plastic part injection molding machine with a waste heat recovery mechanism for an automobile according to claim 6, wherein an extension plate (143) higher than the front end of the carriage (14) is provided near one end of the manifold (221), and the end plate (141) is provided at the rear end of the extension plate (143) and the front end of the carriage (14), respectively.
8. An automotive rubber-plastic part injection molding machine with a waste heat recovery mechanism according to claim 1, characterized in that the compensation heater (4) has a housing (41), the housing (41) wraps the bushing (43), and a heat insulation filler (42) is arranged between the bushing (43) and the housing (41).
9. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 8, wherein the outer spiral pipe (32) is sleeved outside the inner spiral pipe (321), an annular gap is reserved between the outer spiral pipe (32) and the inner spiral pipe (321), and the U-shaped pipe (33) passes back and forth between the outer spiral pipe (32) and the inner spiral pipe (321) through the annular gap.
10. The automobile rubber and plastic part injection molding machine with the waste heat recovery mechanism according to claim 9, wherein the cylinder (31) is filled with heat conduction oil, and the heat conduction oil completely fills the gaps among the U-shaped pipe (33), the outer spiral pipe (32) and the inner spiral pipe (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311834957.1A CN117584408A (en) | 2023-12-28 | 2023-12-28 | Automobile rubber and plastic part injection molding machine with waste heat recovery mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311834957.1A CN117584408A (en) | 2023-12-28 | 2023-12-28 | Automobile rubber and plastic part injection molding machine with waste heat recovery mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117584408A true CN117584408A (en) | 2024-02-23 |
Family
ID=89922768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311834957.1A Pending CN117584408A (en) | 2023-12-28 | 2023-12-28 | Automobile rubber and plastic part injection molding machine with waste heat recovery mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117584408A (en) |
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2023
- 2023-12-28 CN CN202311834957.1A patent/CN117584408A/en active Pending
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