CN217021292U - Residual air recycling structure of temperature control squirt nozzle - Google Patents
Residual air recycling structure of temperature control squirt nozzle Download PDFInfo
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- CN217021292U CN217021292U CN202220221411.3U CN202220221411U CN217021292U CN 217021292 U CN217021292 U CN 217021292U CN 202220221411 U CN202220221411 U CN 202220221411U CN 217021292 U CN217021292 U CN 217021292U
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Abstract
The invention provides a residual air recycling structure of a temperature control squirt nozzle, which comprises the temperature control squirt nozzle, wherein a temperature adjusting air passage is arranged in the temperature control squirt nozzle; the air supply mechanism is communicated with the temperature adjusting air passage; the residual air recovery mechanism is communicated with the temperature adjusting air passage; and the residual air acting mechanism is communicated with the residual air recycling mechanism. The temperature control squirt nozzle is provided with the temperature adjusting air passage, so that a heat exchange medium can be introduced to directly adjust the temperature of the temperature control squirt nozzle, the squirt nozzle is directly and efficiently heated or cooled conveniently, and the residual gas recycling mechanism is arranged to guide the high-pressure residual gas which has finished heat exchange with the temperature control squirt nozzle to the residual gas acting mechanism to act or recycle and store the high-pressure residual gas which flows out of the temperature adjusting air passage and has finished heat exchange with the temperature control squirt nozzle, so that the guarantee is provided for recycling the high-pressure residual gas in time; through setting up the residual air acting mechanism, realize utilizing high pressure residual air again and do work, avoid the waste of energy in the high pressure residual air, effectual energy saving.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a residual air recycling structure of a temperature control sprue bushing.
Background
The sprue bushing is one of necessary parts of a main flow passage when an injection mold works, and molten injection molding glue is injected into a mold cavity and must pass through one of the parts; in the injection molding process, the temperature control of each stage directly influences the injection molding quality, so that temperature regulating parts are arranged in the injection mold, synchronous heating is carried out during injection molding, the fluidity and the injection molding quality of the injection molding glue are kept, and after the pressure holding is finished, the temperature is rapidly reduced, and the product is cooled to ensure the injection molding efficiency; however, in essence, in order to control the temperature of the injection molding compound, the plastic material is heated and melted at the charging barrel and then enters the injection mold through the squirt nozzle.
However, the temperature adjusting part of the existing injection mold does not adjust the temperature of the squirt nozzle, and the squirt nozzle does not have the temperature adjusting function, so that the temperature of the injection molding glue changes in the process of flowing through the squirt nozzle, and the injection molding quality of the product is affected; however, in order to ensure the temperature adjustment effect of the squirt nozzle, the conventional temperature adjustment structure usually configures the heat medium into a high-pressure state, and after the heat exchange between the high-pressure heat medium and the squirt nozzle is completed, the high-pressure heat medium is only directly discharged at high pressure, so that the waste of high-pressure energy is caused.
Therefore, the prior art has shortcomings and drawbacks, and needs further improvement and development.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a residual air recycling structure of a temperature control squirt nozzle, and aims to solve the problem that energy is wasted while temperature of the temperature control squirt nozzle is adjusted during injection molding in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows: a residual air recycling structure of a temperature control squirt nozzle comprises:
the temperature control squirt nozzle is internally provided with a temperature adjusting air passage;
the air supply mechanism is communicated with the temperature adjusting air passage;
the residual air recovery mechanism is communicated with the temperature adjusting air passage;
the residual air acting mechanism is communicated with the residual air recycling mechanism.
Further, the temperature control squirt nozzle further comprises:
the squirt nozzle seat is provided with a squirt nozzle fixing cavity;
the squirt nozzle is arranged in the squirt nozzle fixing cavity, and the temperature adjusting air passage is arranged in the squirt nozzle seat and communicated with the squirt nozzle fixing cavity;
the sealing sleeve is sleeved on the squirt nozzle and is positioned at the joint of the temperature adjusting air passage and the squirt nozzle fixing cavity.
Further, the sealing sleeve comprises a first sealing part, a ventilation and heat exchange part and a second sealing part which are integrally formed in sequence;
the first sealing part is positioned between the squirt nozzle and the squirt nozzle fixing cavity;
the second sealing part is positioned between the squirt nozzle and the squirt nozzle fixing cavity;
the ventilation and heat exchange part is positioned between the squirt nozzle and the temperature-adjusting air passage;
wherein, the air flue portion that adjusts the temperature with be provided with the arc annular on the face that the air flue that adjusts the temperature is connected, the arc annular orientation the axle center direction of purt mouth is sunken, the tank bottom of arc annular with the pipe wall clearance fit of air flue adjusts the temperature.
Furthermore, the first sealing part and the second sealing part are elastic parts and are in interference fit with the squirt nozzle fixing cavity.
Furthermore, the squirt nozzle comprises an integrally formed liquid inlet section, a temperature regulating section and a liquid outlet section, the first sealing part is arranged on the liquid inlet section, the ventilation and heat exchange part is arranged on the temperature regulating section, and the second sealing part is arranged on the liquid outlet section, wherein the liquid inlet section is detachably connected with the squirt nozzle seat;
the temperature control squirt nozzle further comprises: a first seal ring and a second seal ring; the first sealing ring is arranged on the liquid inlet section and is positioned at one end of the liquid inlet section along the direction of the first sealing part deviating from the second sealing part; the second sealing ring is arranged on the liquid outlet section and is positioned at one end of the liquid outlet section in the direction deviating from the first sealing part along the second sealing part.
Further, the temperature adjusting air passage is sequentially communicated with an air inlet section, a sprue bushing heat exchange section and an air outlet section;
an auxiliary channel is arranged between one end of the squirt nozzle heat exchange section and one end face of the squirt nozzle base, and the auxiliary channel is provided with a sealing plug.
Further, the gas supply mechanism includes:
the three-way electromagnetic valve is provided with a first interface, a second interface and a third interface, wherein the third interface is communicated with one end of the temperature adjusting air passage;
the high-pressure hot gas supply device is communicated with the first interface;
and the high-pressure cold air supply device is communicated with the second interface.
Further, the residual air recovery mechanism comprises:
and one end of the high-pressure storage tank is communicated with the other end of the temperature adjusting air passage.
Further, the residual air work-doing mechanism comprises:
the vacuum generator is communicated with the residual gas recovery mechanism;
a vacuum tank in communication with the vacuum generator.
The technical scheme adopted by the invention for solving the technical problem is as follows: an injection molding method realized based on the residual air recycling structure system of the temperature control squirt nozzle comprises the following steps:
controlling the charging barrel sol by the injection molding machine;
the injection molding machine controls the injection mold to be closed, controls the gas supply mechanism to output high-pressure hot gas and heat the temperature control sprue bushing, and the residual gas recovery mechanism synchronously transmits the high-pressure residual gas to the residual gas acting mechanism to act;
when the high-pressure hot gas output by the gas supply control mechanism reaches the preset time, injection molding and glue injection are started;
when injection molding and pressure maintaining are finished, the air supply mechanism is controlled to output high-pressure cold air to cool the temperature control sprue bushing, and the residual air recovery mechanism synchronously transmits high-pressure residual air to the residual air acting mechanism to act;
the pressure maintaining is completed, the injection mold is controlled to open, an injection product is taken out, the injection molding machine is controlled to control the air supply mechanism to output high-pressure hot air, the temperature control sprue bushing is heated, and the residual air recovery mechanism synchronously transmits high-pressure residual air to the residual air acting mechanism to act.
The invention provides a residual air recycling structure of a temperature control squirt nozzle, which comprises: the temperature control squirt nozzle is internally provided with a temperature adjusting air passage; the air supply mechanism is communicated with the temperature adjusting air passage; the residual air recovery mechanism is communicated with the temperature adjusting air passage; the residual air acting mechanism is communicated with the residual air recycling mechanism. It can be understood that the temperature control squirt nozzle is provided with the temperature adjusting air passage, and then heat exchange media such as high-pressure hot air and high-pressure cold air can be introduced to directly adjust the temperature of the temperature control squirt nozzle, so that the squirt nozzle can be directly and conveniently and efficiently heated or cooled, and meanwhile, the residual gas recycling mechanism is arranged, so that high-pressure residual gas which finishes heat exchange with the temperature control squirt nozzle is effectively guided to the residual gas acting mechanism to do work, or high-pressure residual gas which finishes heat exchange with the temperature control squirt nozzle and flows out of the temperature adjusting air passage is recycled and stored, and the guarantee is provided for timely recycling of the high-pressure residual gas; through setting up residual air power mechanism, and then can utilize high-pressure residual air to do work once more, effectively avoid the waste of energy in the high-pressure residual air, effectual energy saving.
Drawings
FIG. 1 is a functional schematic diagram of a residual air recycling structure of a temperature-controlled squirt nozzle provided in the present invention;
FIG. 2 is a schematic perspective view of a temperature controlled squirt nozzle provided in the present invention;
FIG. 3 is a schematic cross-sectional view of a temperature controlled squirt nozzle provided in the present invention;
FIG. 4 is a schematic perspective cross-sectional view of a temperature controlled squirt nozzle provided in the present invention;
FIG. 5 is an enlarged view of portion A of FIG. 3 according to the present invention;
description of the reference numerals:
1. a residual air recycling structure of the temperature control squirt nozzle; 10. a temperature control squirt nozzle; 20. an air supply mechanism; 30. A residual gas recovery mechanism; 40. a residual air acting mechanism; 11. a squirt nozzle base; 12. a squirt nozzle; 13. a temperature-regulating airway; 14. sealing sleeves; 15. a first seal ring; 16. a second seal ring; 111. a pump nozzle fixing cavity; 121. a liquid inlet section; 122. a temperature adjusting section; 123. a liquid outlet section; 124. a plastic runner; 125. A first seal groove; 126. a second seal groove; 131. an air intake section; 132. a sprue bushing heat exchange section; 133. an air outlet section; 134. a secondary road; 135. sealing the plug; 141. a first seal portion; 142. a ventilation heat exchange part; 143. a second sealing part; 144. an arc-shaped ring groove; 21. a three-way electromagnetic valve; 22. a high-pressure hot gas supply device; 23. a high-pressure cold air supply device; 31. a high pressure storage tank; 41. a vacuum generator; 42. and (4) a vacuum tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
The sprue bushing is one of necessary parts of a main flow passage when an injection mold works, and molten injection molding glue is injected into a mold cavity and must pass through one of the parts; in the injection molding process, the temperature control of each stage directly influences the injection molding quality, so that temperature regulating parts are arranged in the injection mold, synchronous heating is carried out during injection molding, the fluidity and the injection molding quality of the injection molding glue are kept, and after the pressure holding is finished, the temperature is rapidly reduced, and the product is cooled to ensure the injection molding efficiency; however, in essence, in order to control the temperature of the injection molding glue, the plastic material is heated and melted at the charging barrel and then enters the injection mold through the squirt nozzle. However, the temperature adjusting part of the existing injection mold does not adjust the temperature of the squirt nozzle, and the squirt nozzle does not have the temperature adjusting function, so that the temperature of the injection molding glue changes in the process of flowing through the squirt nozzle, and the injection molding quality of the product is affected; however, in order to ensure the temperature regulation effect of the squirt nozzle, the conventional temperature regulation structure usually configures the heat medium into a high-pressure state, and after the heat exchange between the high-pressure heat medium and the squirt nozzle is completed, the high-pressure heat medium is only directly discharged at high pressure, so that the waste of high-pressure energy is caused. The invention provides a residual gas recycling structure of a temperature control sprue based on the problem that energy is wasted when temperature of the temperature control sprue is adjusted during injection molding in the prior art, a temperature adjusting air passage is arranged on the temperature control sprue, so that heat exchange media such as high-pressure hot gas and high-pressure cold air can be introduced, the temperature of the temperature control sprue is directly adjusted, the sprue is directly and conveniently and efficiently heated or cooled, and meanwhile, the residual gas recycling mechanism is arranged, so that high-pressure residual gas which finishes heat exchange with the temperature control sprue is effectively guided to a residual gas acting mechanism to do work, or high-pressure residual gas which flows out from the temperature adjusting air passage and finishes heat exchange with the temperature control sprue is recycled and stored, and a guarantee is provided for timely recycling the high-pressure residual gas; by arranging the residual air acting mechanism, the high-pressure residual air can be utilized again to act, so that the waste of energy in the high-pressure residual air is effectively avoided, and the energy is effectively saved; for details, reference will be made to the following embodiments.
Referring to fig. 1, a first embodiment of the present invention provides a residual air recycling structure 1 of a temperature-controlled pump nozzle, including: the temperature control pump nozzle 10, the gas supply mechanism 20, the residual gas recovery mechanism 30 and the residual gas acting mechanism 40; a temperature-adjusting air passage 13 is arranged in the temperature-control squirt nozzle 10; the air supply mechanism 20 is communicated with the temperature adjusting air passage 13; the residual gas recovery mechanism 30 is communicated with the temperature adjusting air passage 13; the residual air acting mechanism 40 is communicated with the residual air recycling mechanism 30.
It can be understood that the temperature control squirt nozzle 10 is provided with the temperature adjusting air passage 13, so that heat exchange media such as high-pressure hot gas and high-pressure cold air can be introduced to directly adjust the temperature of the temperature control squirt nozzle 10, so as to directly and conveniently and efficiently heat or cool the squirt nozzle 12, and meanwhile, the residual air recycling mechanism 30 is arranged to effectively guide the high-pressure residual air which has completed heat exchange with the temperature control squirt nozzle 10 to the residual air working mechanism 40 to do work, namely, directly guide the high-pressure residual air to the residual air working mechanism 40 to do work; or, the high-pressure residual gas which flows out of the temperature adjusting air passage 13 and completes heat exchange with the temperature control pump nozzle 10 is temporarily recovered and stored, so that the guarantee is provided for timely recycling of the high-pressure residual gas; through setting up surplus gas mechanism of doing work 40, and then can utilize high-pressure surplus gas once more to do work, effectively avoid the waste of energy in the high-pressure surplus gas, effectual energy saving.
Referring to fig. 2 to 5, in some embodiments, the temperature-controlled squirt nozzle 10 further includes: the squirt nozzle comprises a squirt nozzle base 11, a squirt nozzle 12 and a sealing sleeve 14, wherein a squirt nozzle fixing cavity 111 is arranged on the squirt nozzle base 11; the squirt nozzle 12 is arranged in the squirt nozzle fixing cavity 111, and the temperature adjusting air passage 13 is arranged in the squirt nozzle base 11 and is communicated with the squirt nozzle fixing cavity 111; the sealing sleeve 14 is sleeved on the squirt nozzle 12 and is located at the joint of the temperature adjusting air passage 13 and the squirt nozzle fixing cavity 111.
It can be understood that, by providing the temperature adjusting air passage 13 on the squirt nozzle base 11, and controlling the temperature adjusting air passage 13 to communicate with the squirt nozzle fixing cavity 111, the high-temperature gas or the low-temperature gas can pass through the temperature adjusting air passage 13, and the squirt nozzle 12 in the squirt nozzle fixing cavity 111 can be heated or cooled, so that the temperature of the squirt nozzle 12 can be directly adjusted, and compared with the temperature adjustment by the squirt nozzle base 11, the temperature adjusting effect of the squirt nozzle 12 is more accurate and efficient, the temperature of the squirt nozzle 12 can be conveniently and efficiently controlled, and the injection molding quality is improved; through setting up seal cover 14, and control seal cover 14 cover is located squirt mouth 12 is located adjust the temperature air flue 13 with the junction area of the fixed chamber 111 of squirt mouth, and then pass through adjust the temperature air flue 13 is direct right when the squirt mouth 12 adjusts the temperature the operation, ensure the sealing performance of control by temperature change squirt mouth 10 can prevent especially high-pressure gas that flows through in the air flue 13 that adjusts the temperature from squirt mouth 12 with the assembly face department of the fixed chamber 111 of squirt mouth overflows, effectively avoids the high-pressure gas that adjusts the temperature to injection mold's damage, also avoids high-temperature gas flow to influence injection mold's leakproofness, when accomplishing the temperature adjustment to squirt mouth 12, further promotes injection molding quality and security.
Referring to fig. 5, in other embodiments, the sealing sleeve 14 includes a first sealing portion 141, a ventilation heat exchanging portion 142, and a second sealing portion 143, which are integrally formed in sequence; the first sealing portion 141 is located between the squirt nozzle 12 and the squirt nozzle fixing cavity 111; the second sealing portion 143 is located between the squirt nozzle 12 and the squirt nozzle fixing cavity 111; the ventilation and heat exchange part 142 is located between the squirt nozzle 12 and the temperature-adjusting air passage 13; temperature regulation air flue 13 portion with be provided with arc annular 144 on the face that temperature regulation air flue 13 is connected, arc annular 144 orientation the axle center direction of purt mouth 12 is sunken, the tank bottom of arc annular 144 with the pipe wall clearance fit of temperature regulation air flue 13.
It can be understood that the sealing sleeve 14 is wrapped and sleeved on the pump nozzle 12 in a 360-degree manner, wherein two ends of the sealing sleeve 14 are used for sealing, and the assembling surfaces of the pump nozzle 12 and the pump nozzle fixing cavity 111 in the areas on two sides of the temperature adjusting air passage 13; by arranging the ventilation and heat exchange portion 142, that is, the region of the sealing sleeve 14 in the temperature adjusting air passage 13 or the whole region has high heat conductivity, the sealing performance of the temperature control squirt nozzle 10 is improved, the heat exchange efficiency of the squirt nozzle 12 is guaranteed, the temperature adjusting efficiency and effect are improved, and the injection molding quality is further improved.
Simultaneously, through set up arc annular 144 in the air flue 13 portion that adjusts the temperature, and then both ensured the circulation of air flue 13 that adjusts the temperature can also reduce simultaneously seal cover 14 need not provide the thickness in the region of sealed effect, and is further, promote purt 12 and pass through the air flue portion that adjusts the temperature and the gaseous heat exchange efficiency that adjusts the temperature further promote purt 12 adjustment efficiency and effect, guarantee the quality of moulding plastics.
Further, through set up arc annular 144 in the air flue 13 portion that adjusts the temperature, and control the tank bottom of arc annular 144 with the pipe wall clearance fit of air flue 13 adjusts the temperature, further guarantee the circulation performance of air flue 13 adjusts the temperature for through more temperature regulation gas in the unit interval, further promote purt 12 adjustment efficiency and effect, guarantee the quality of moulding plastics.
Referring to fig. 5, in other embodiments, the first sealing portion 141 and the second sealing portion 143 are elastic members and are in interference fit with the squirt nozzle fixing cavity 111.
It will be appreciated that by providing the first sealing portion 141 and the second sealing portion 143 as elastic members, and by providing both with interference fit with the squirt nozzle fixing cavity 111, the sealing performance of the sealing sleeve 14 can be further improved.
Referring to fig. 5, in other embodiments, the squirt nozzle 12 includes an inlet section 121, a temperature adjusting section 122, and an outlet section 123 that are integrally formed, the first sealing portion 141 is disposed on the inlet section 121, the ventilation and heat exchange portion 142 is disposed on the temperature adjusting section 122, and the second sealing portion 143 is disposed on the outlet section 123, wherein the inlet section 121 is detachably connected to the squirt nozzle base 11; the temperature-controlled squirt 10 further includes: a first seal ring 15 and a second seal ring 16; the first sealing ring 15 is arranged on the liquid inlet section 121 and is located at one end of the liquid inlet section 121 in the direction away from the second sealing part 143 along the first sealing part 141; the second sealing ring 16 is disposed on the liquid outlet section 123 and is located at one end of the liquid outlet section 123 along the direction of the second sealing portion 143 away from the first sealing portion 141.
It can be understood that, through setting up first sealing washer 15 and second sealing washer 16, and then can be more nearly the guarantee the sealing performance of control by temperature change sprue bushing 10, the guarantee is right the heat exchange efficiency of sprue bushing 12 promotes and adjusts temperature efficiency and effect, further promotes the quality of moulding plastics. It should be noted that the squirt nozzle 12 further includes a plastic flow channel 124, and the plastic flow channel 124 is disposed at an axial center of the liquid inlet section 121, the temperature adjusting section 122, and the liquid outlet section 123.
Further, the squirt nozzle 12 further includes a first sealing groove 125 and a second sealing groove 126, the first sealing groove 125 is disposed at one end of the liquid inlet section 121 along a direction of the first sealing portion 141 away from the second sealing portion 143; the second seal groove 126 is disposed at one end of the liquid outlet section 123 in a direction away from the first seal portion 141 along the second seal portion 143, the first seal ring 15 is disposed in the first seal groove 125, and the second seal ring 16 is disposed in the second seal groove 126.
Referring to fig. 5, in another embodiment, the temperature-adjusting air passage 13 is sequentially connected to an air inlet section 131, a pump nozzle heat exchange section 132, and an air outlet section 133; an auxiliary channel 134 is disposed between one end of the pump nozzle heat exchange section 132 and one end surface of the pump nozzle base 11, and the auxiliary channel 134 is provided with a sealing plug 135.
It can be understood that, by providing the auxiliary channel 134 between one end of the squirt nozzle heat exchange section 132 and one end surface of the squirt nozzle base 11, the temperature adjusting air passage 13, especially the squirt nozzle heat exchange section 132, can be conveniently processed on the squirt nozzle base 11, and by providing the sealing plug 135, the sealing performance of the temperature adjusting air passage 13 can be further ensured.
Referring to fig. 1, in some embodiments, the gas supply mechanism 20 includes: a three-way electromagnetic valve 21, a high-pressure hot gas supply device 22 and a high-pressure cold gas supply device 23; the three-way electromagnetic valve 21 is provided with a first interface, a second interface and a third interface, wherein the third interface is communicated with one end of the temperature adjusting air passage 13; the high-pressure hot gas supply device 22 is communicated with the first interface; the high-pressure cold air supply device 23 is communicated with the second interface.
It can be understood that, through setting up three way solenoid valve 21, and then can control high pressure hot gas air feeder 22 or high pressure air conditioning air feeder 23, respectively with adjust the temperature and play the intercommunication, and then control through high pressure hot gas still high pressure air conditioning in the air flue 13 that adjusts the temperature, realize the heating or the cooling to temperature regulation purt 12.
Referring to fig. 1, in some embodiments, the residual gas recycling mechanism 30 includes: and one end of the high-pressure storage tank 31 is communicated with the other end of the temperature adjusting air passage 13.
It can be understood that through the setting high-pressure storage tank 31, and then can temporarily retrieve the high-pressure residual air of certain pressure of storage, when needs residual air effect, is passing through high-pressure storage tank 31 release high-pressure residual air, and then promote the residual air of control by temperature change pump nozzle recycles structure 1's high-pressure residual air ability of recycling.
Referring to fig. 1, in some embodiments, the residual air acting mechanism 40 includes: a vacuum generator 41 and a vacuum tank 42; the vacuum generator 41 is communicated with the residual gas recovery mechanism 30; the vacuum tank 42 communicates with the vacuum generator 41.
It can be understood that the high-pressure residual air drives the vacuum generator 41 to operate, i.e. the high-pressure residual air is used as a power source of the vacuum generator 41; and then vacuum energy storage is generated in the vacuum tank 42 and is used as a vacuum source for driving the injection production auxiliary equipment manipulator, the polishing machine, the in-mold cavity vacuumizing equipment and the like, so that the energy for driving the vacuum generator 41 is effectively saved, and meanwhile, the vacuum tank can be collocated with the injection mold equipment, so that the arrangement of a special vacuum pipeline is reduced, the installation and use cost of a vacuum system are reduced, and the effects of environmental protection and energy saving are achieved.
In a second embodiment of the present invention, an injection molding method is further provided, where the injection molding method is implemented based on the residual air recycling structure system of the temperature-controlled squirt nozzle in the first embodiment of the present invention, and includes:
s100, controlling the charging barrel to dissolve sol by an injection molding machine;
s200, controlling an injection mold to be closed by an injection molding machine, controlling an air supply mechanism to output high-pressure hot air to heat a temperature control sprue bushing, and synchronously transmitting the high-pressure residual air to a residual air acting mechanism to act by a residual air recovery mechanism;
step S300, when the high-pressure hot gas output by the gas supply control mechanism reaches a preset time, starting injection molding and injecting glue;
s400, when injection molding and glue injection are completed and pressure maintaining is started, controlling the air supply mechanism to output high-pressure cold air, cooling the temperature control sprue bushing, and synchronously transmitting high-pressure residual air to the residual air acting mechanism to act by the residual air recovery mechanism;
and S500, pressure maintaining is completed, the mold opening of the injection mold is controlled, an injection product is taken out, the injection molding machine is controlled to control the air supply mechanism to output high-pressure hot air, the temperature control sprue bushing is heated, and the residual air recovery mechanism synchronously transmits high-pressure residual air to the residual air acting mechanism to act.
It can be understood that, in the injection molding method provided in this embodiment, during injection molding, the temperature of the temperature control sprue can be adjusted, the high-pressure residual gas after the temperature adjustment of the temperature control sprue can be effectively recycled to do work, and the high-pressure residual gas is used as a power source of the vacuum generator while the injection molding quality is ensured to be improved; and vacuum energy storage is generated in the vacuum tank and is used as a vacuum source for driving injection production auxiliary equipment such as a mechanical arm, a polishing machine and in-mold cavity vacuumizing equipment, so that energy for driving a vacuum generator is effectively saved, and meanwhile, the vacuum tank can be configured with injection mold equipment, so that the special vacuum pipeline is reduced, the installation and use cost of a vacuum system are reduced, and the effect of green, environment-friendly and energy-saving injection molding is achieved.
Specifically, S1, 2-3 seconds before injection molding, the injection molding machine outputs a signal to control the three-way electromagnetic valve, the high-pressure hot gas supply device is switched on, the temperature control squirt nozzle is heated and heated, and the injection molding sol and the injection mold are closed at the moment;
s2, when the temperature rises to reach the preset time, the injection machine starts to inject and fills the die cavity;
s3, when the injection is finished, entering a pressure maintaining cooling stage, controlling a three-way electromagnetic valve to close the communication with a high-pressure hot air supply device, and switching on the high-pressure cold air supply device to cool the injection molding glue in a main flow passage near a machine in the temperature control sprue;
and S4, after the pressure maintaining is finished, opening the injection mold, taking out the product, controlling the three-way electromagnetic valve to close the communication with the high-pressure cold air supply device, switching on the high-pressure hot air supply device, heating the temperature control squirt nozzle, and entering the next injection molding process, namely circulating S1 to S4 until all the accommodation of the product is finished.
In summary, the present invention provides a residual air recycling structure of a temperature-controlled sprue, which includes: the temperature control squirt nozzle is internally provided with a temperature adjusting air passage; the air supply mechanism is communicated with the temperature adjusting air passage; the residual air recovery mechanism is communicated with the temperature adjusting air passage; the residual air acting mechanism is communicated with the residual air recycling mechanism. It can be understood that the temperature control squirt nozzle is provided with the temperature adjusting air passage, so that heat exchange media such as high-pressure hot gas and high-pressure cold air can be introduced, the temperature of the temperature control squirt nozzle is directly adjusted, the squirt nozzle is directly and conveniently and efficiently heated or cooled, meanwhile, the residual gas recycling mechanism is arranged, high-pressure residual gas which has completed heat exchange with the temperature control squirt nozzle is effectively guided to the residual gas acting mechanism to do work, or high-pressure residual gas which flows out from the temperature adjusting air passage and has completed heat exchange with the temperature control squirt nozzle is recycled and stored, and the guarantee is provided for timely recycling of the high-pressure residual gas; through setting up residual air power mechanism, and then can utilize high-pressure residual air to do work once more, effectively avoid the waste of energy in the high-pressure residual air, effectual energy saving.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (9)
1. A residual air recycling structure of a temperature control squirt nozzle is characterized by comprising:
the temperature control squirt nozzle is internally provided with a temperature adjusting air passage;
the air supply mechanism is communicated with the temperature adjusting air passage;
the residual air recovery mechanism is communicated with the temperature adjusting air passage;
the residual air acting mechanism is communicated with the residual air recycling mechanism.
2. The residual air recycling structure of a temperature-controlled squirt nozzle of claim 1, wherein the temperature-controlled squirt nozzle further comprises:
the squirt nozzle base is provided with a squirt nozzle fixing cavity;
the squirt nozzle is arranged in the squirt nozzle fixing cavity, and the temperature-adjusting air passage is arranged in the squirt nozzle seat and communicated with the squirt nozzle fixing cavity;
the sealing sleeve is sleeved on the squirt nozzle and is positioned at the joint of the temperature adjusting air passage and the squirt nozzle fixing cavity.
3. The residual air recycling structure of the temperature-controlled squirt nozzle according to claim 2, wherein the sealing sleeve comprises a first sealing portion, a ventilation heat-exchanging portion and a second sealing portion which are integrally formed in sequence;
the first sealing part is positioned between the squirt nozzle and the squirt nozzle fixing cavity;
the second sealing part is positioned between the squirt nozzle and the squirt nozzle fixing cavity;
the ventilation heat exchange part is positioned between the squirt nozzle and the temperature-adjusting air passage;
wherein, the air flue portion that adjusts the temperature with be provided with the arc annular on the face that the air flue that adjusts the temperature is connected, the orientation of arc annular the axle center direction of purt mouth is sunken, the tank bottom of arc annular with the pipe wall clearance fit of air flue adjusts the temperature.
4. The residual air recycling structure of a temperature-controlled squirt nozzle as claimed in claim 3,
the first sealing part and the second sealing part are arranged to be elastic parts and are in interference fit with the sprue bushing fixing cavity.
5. The residual air recycling structure of a temperature-controlled squirt nozzle as claimed in claim 3,
the squirt nozzle comprises an integrally formed liquid inlet section, a temperature regulating section and a liquid outlet section, the first sealing part is arranged on the liquid inlet section, the ventilation and heat exchange part is arranged on the temperature regulating section, and the second sealing part is arranged on the liquid outlet section, wherein the liquid inlet section is detachably connected with the squirt nozzle seat;
the temperature control squirt nozzle further comprises: a first seal ring and a second seal ring; the first sealing ring is arranged on the liquid inlet section and is positioned at one end of the liquid inlet section along the direction of the first sealing part deviating from the second sealing part; the second sealing ring is arranged on the liquid outlet section and is positioned at one end of the liquid outlet section, which deviates from the first sealing part in the direction of the second sealing part.
6. The residual air recycling structure of a temperature-controlled squirt nozzle as claimed in claim 2,
the temperature adjusting air passage is sequentially communicated with the air inlet section, the pump nozzle heat exchange section and the air outlet section;
an auxiliary channel is arranged between one end of the squirt nozzle heat exchange section and one end face of the squirt nozzle base, and the auxiliary channel is provided with a sealing plug.
7. The residual air recycling structure of a temperature-controlled squirt nozzle of claim 1, wherein the air supply mechanism comprises:
the three-way electromagnetic valve is provided with a first interface, a second interface and a third interface, wherein the third interface is communicated with one end of the temperature adjusting air passage;
the high-pressure hot gas supply device is communicated with the first interface;
and the high-pressure cold air supply device is communicated with the second interface.
8. The residual air recycling structure of a temperature-controlled squirt nozzle of claim 1, wherein the residual air recycling mechanism comprises:
and one end of the high-pressure storage tank is communicated with the other end of the temperature adjusting air passage.
9. The residual air recycling structure of a temperature-controlled squirt nozzle of claim 1, wherein the residual air acting mechanism comprises:
the vacuum generator is communicated with the residual gas recovery mechanism;
a vacuum tank in communication with the vacuum generator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220221411.3U CN217021292U (en) | 2022-01-25 | 2022-01-25 | Residual air recycling structure of temperature control squirt nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220221411.3U CN217021292U (en) | 2022-01-25 | 2022-01-25 | Residual air recycling structure of temperature control squirt nozzle |
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