Injection molding device for manufacturing pressure vessels

Abstract

The present invention provides an injection molding device for manufacturing pressure vessels, which belongs to the technical field of injection molding. The device comprises a workbench and an extruder main body arranged above the workbench, an extrusion channel being arranged on the extrusion main body, an extrusion module being arranged at one end of the extrusion channel, a decompression degassing component being arranged between the extruder main body and the extrusion module, the decompression degassing component comprising a guide sleeve and two groups of vacuum air pumps, one end of the extrusion channel being connected to the extrusion module through the guide sleeve, the suction ends of the two groups of vacuum air pumps being connected to the guide sleeve, a forming mold main body being further arranged above the workbench corresponding to the extruder main body, an anti-adhesion component being arranged in the forming mold main body, the anti-adhesion component comprising a liquid storage tank and multiple groups of injection ports; bubbles in the material are removed by forming an air pressure zone in the guide sleeve, and surface scratches and other problems caused by demolding difficulties are avoided by spraying a cleaning lubricating liquid during demolding, thereby improving the product yield.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding, and more specifically, relates to an injection molding device for manufacturing pressure vessels. Background Art

[0002] In chemical production, some reaction devices with high requirements for corrosion resistance will use plastic pressure vessels, which can resist the erosion of specific chemicals and ensure the stability of the production process.

[0003] With the rapid development of industrial technology, injection molding technology has gradually been widely used in pressure vessel manufacturing, improving production efficiency and product precision. For example, the Chinese utility model patent with patent number 202222436976.6 provides a grease filter with active extrusion function. The extrusion equipment uses a cylinder to drive a pushing table to extrude the grease from the extrusion hole, uses the extrusion hole to intercept particulate impurities inside the filter cavity, and uses the fine mesh on the screen to split and eliminate the internal bubbles, thereby improving the product quality of the grease; however, when the screw of the traditional injection molding device rotates at high speed, the molding material in the extrusion channel will be heated unevenly, and the unmelted molding material will affect the molding quality of the product, increase the difficulty of demolding, and reduce the product yield. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an injection molding device for manufacturing pressure vessels to solve the technical problems in the prior art that when the screw of the traditional injection molding device rotates at high speed, the molding material in the extrusion channel will be heated unevenly, the unmelted molding material will affect the product molding quality, and increase the difficulty of demolding, thereby reducing the product yield.

[0005] The purpose and effect of the injection molding device for manufacturing a pressure vessel of the present invention are achieved by the following specific technical means:

[0006] An injection molding device for manufacturing pressure vessels includes a workbench and an extruder main body arranged above the workbench, an extrusion channel is provided on the extruder main body, an extrusion module is provided at one end of the extrusion channel, a decompression degassing component is provided between the extruder main body and the extrusion module, the decompression degassing component includes a guide sleeve and two groups of vacuum air pumps, one end of the extrusion channel is connected to the extrusion module through the guide sleeve, and the suction ends of the two groups of vacuum air pumps are connected to the guide sleeve. A molding mold main body is also provided above the workbench corresponding to the extruder main body, an anti-adhesion component is provided in the molding mold main body, and the anti-adhesion component includes a liquid storage tank and multiple groups of injection ports.

[0007] In a preferred embodiment, a degassing shell is provided between the extruder body and the extrusion module, a degassing shell is provided with a pressure reducing channel, the guide sleeve is passed through the degassing channel, a closing plate is provided on one end of the degassing shell close to the extruder body, a plurality of groups of connecting holes are provided on the closing plate, and a guide one-way valve is provided in each of the plurality of connecting holes, one end of the degassing channel is connected to the extrusion module, and the other end is connected to the extrusion channel through the plurality of groups of guide one-way valves.

[0008] In a preferred embodiment, the pressure-reducing degassing assembly also includes four groups of ultrasonic generators, two groups of guide rings are arranged in the guide sleeve, and six groups of first mounting holes are respectively arranged on the two groups of guide rings and the degassing shell, and two groups of vacuum air pumps are arranged on the top of the degassing shell. A first one-way air valve is arranged in one group of the first mounting holes on the two groups of guide rings, and the two groups of first one-way air valves are respectively connected to the two groups of vacuum air pumps through two groups of air pipes, and ultrasonic guide columns are arranged in the other four groups of the first mounting holes, and the ultrasonic generator is arranged at one end of the four groups of ultrasonic guide columns.

[0009] In a preferred embodiment, an extrusion motor is provided at one end of the extruder body, a transmission shaft is provided on the main shaft of the extrusion motor, an extrusion screw is provided in the extrusion channel, the extrusion screw is sleeved on the transmission shaft, an extrusion screw is provided in the decompression channel, the extrusion screw is sleeved on the transmission shaft, four groups of defoaming filter plates are respectively provided on the circumference of the extrusion screw corresponding to the two groups of guide rings, an extrusion drill bit is provided at one end of the extrusion screw close to the extrusion module, and an extrusion one-way valve is provided on the extrusion port of the extrusion module corresponding to the forming mold body.

[0010] In a preferred embodiment, the liquid storage tank is provided at the top of the front mold core of the molding mold body corresponding to the cavity of the rear mold core, and multiple groups of injection ports are provided at the bottom of the front mold core corresponding to the cavity. A guide groove is provided on one side of the liquid storage tank to connect with the multiple groups of injection ports, the anti-adhesion component also includes a pressure pump, and a liquid storage tank for holding cleaning lubricating liquid is provided at the bottom of the molding mold body.

[0011] In a preferred embodiment, the pressure pump is provided on one side of the front mold core, and the pressure pump is connected to the liquid storage box and the liquid storage tank through pipelines respectively. A groove is provided on one side of the forming mold body corresponding to the pressure pump, and a closing cover is provided on the top of the liquid storage tank. A second mounting hole is provided on the top of the closing cover, and a liquid level sensor is provided in the second mounting hole corresponding to the liquid storage tank.

[0012] In a preferred embodiment, a mounting seat is provided on the top of the extruder body, a mixing tank is provided on the top of the mounting seat corresponding to the filling port of the extruder body, a mixing structure is provided in the mixing tank, a material preheating component is provided on the mixing tank, and the material preheating component includes a heating layer, a heating shell is provided on the outside of the mixing tank, the heating layer is formed between the heating shell and the mixing tank, a liquid tank is provided at the bottom of the heating shell, a heater is provided between the heating shell and the mounting seat, and heat exchange ribs are provided around the mixing tank.

[0013] In a preferred embodiment, a steam ring is provided on the top of the heating layer, an annular cavity is provided inside the steam ring, multiple groups of through holes are opened at the bottom of the annular cavity to communicate with the heating layer, liquid storage ring grooves are provided on the outside of multiple groups of through holes, a condenser is provided on the top of the annular cavity corresponding to the liquid storage ring groove, and multiple groups of drip guide protrusions are provided at the bottom of the condenser, and the multiple groups of drip guide protrusions are all facing the liquid storage ring groove.

[0014] In a preferred embodiment, a steam ring is provided on the top of the heating layer, an annular cavity is provided in the steam ring, and multiple groups of third mounting holes are provided at the bottom of the annular cavity to communicate with the heating layer, multiple groups of the third mounting holes are provided with second one-way air valves, and multiple groups of the second one-way air valves are provided with liquid storage ring grooves on the outside, a heat exchange square tube is provided on the top of the annular cavity, a cooling channel is provided in the heat exchange square tube, and the two ends of the cooling channel are respectively connected to an air inlet joint and an air outlet joint, and multiple groups of guide condensation plates are provided at the bottom of the heat exchange square tube corresponding to the liquid storage ring groove, and multiple groups of the guide condensation plates are provided with an inclined surface on one side close to the multiple groups of the third mounting holes, and the other side is connected to the inner wall of the annular cavity.

[0015] In a preferred embodiment, a heat exchange pipe and multiple groups of heat exchange plates are provided in the liquid storage tank, and the multiple groups of heat exchange plates are all mounted on the heat exchange pipe. One side of the heat exchange pipe is connected to the liquid storage ring groove through a first pipe, and the other side is connected to the liquid storage tank through a second pipe. An infusion pump is provided on the second pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting a decompression degassing component between the extruder body and the extrusion module, two sets of vacuum air pumps are connected to the guide sleeve, which can form a low-pressure area inside the guide sleeve. When the molding material flows through, the internal bubbles expand and are extracted under the low-pressure environment. At the same time, four sets of ultrasonic generators cooperate with the guide ring and ultrasonic guide column to use the cavitation effect of ultrasound to further promote the rupture, aggregation and discharge of bubbles. In addition, the four sets of degassing filter plates on the side of the extrusion screw can intercept and break up larger bubbles, so that the bubbles in the molding material are removed under multiple actions, reducing the defects caused by bubbles inside the product and improving the internal quality and pressure-bearing performance of the pressure vessel.

[0018] 2. Through the setting of the material preheating component, the heat generated by the heater is used to heat the liquid in the liquid storage tank to evaporate it, so that the steam fills the heating layer to preheat the molding material in the mixing tank. The annular cavity in the steam ring is connected to the heating layer through multiple groups of through holes. The steam rises into the annular cavity. At the top of the annular cavity, the steam is condensed through the condenser. The condensed liquid flows into the liquid storage ring groove along the drip guide. The liquid is passed through the heat exchange pipe through the infusion pump. The multiple groups of heat exchange plates installed on the heat exchange pipe in the liquid storage tank increase the contact area with the clean lubricating oil in the liquid storage tank, perform heat exchange on the clean lubricating oil in the liquid storage tank, and assist in cooling the mold cavity, thereby accelerating the cooling and molding speed of the molding material in the cavity.

[0019] 3. Through the setting of the anti-adhesion component, the pressure pump transports the cleaning lubricating liquid in the liquid storage tank to the liquid storage tank. Through the guide groove and multiple sets of injection nozzles, the cleaning lubricating liquid can be evenly sprayed on the surface of the mold cavity. During demolding, the cleaning lubricating liquid forms a lubricating layer between the container and the mold, reducing the degree of adhesion, allowing the container to be smoothly removed from the mold, avoiding problems such as scratches and deformation on the container surface caused by demolding difficulties, and improving the product yield; at the same time, the liquid level sensor can detect the liquid level of the cleaning lubricating liquid in the liquid storage tank, facilitating timely replenishment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the assembled embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the expanded embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the decompression degassing component after assembly in the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the decompression degassing component after disassembly in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the forming mold body in the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the molding die body after being disassembled in the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the closed cover plate and the liquid level sensor after being separated in the present invention;

[0027] Figure 8 It is a structural schematic diagram of the guide trough in the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the material preheating component after assembly in the present invention;

[0029] Figure 10 yes Figure 9 Schematic diagram of the structure after splitting;

[0030] Figure 11 This is a schematic structural diagram of the heating housing and the heater after assembly in the present invention;

[0031] Figure 12 yes Figure 11 Cross-sectional view of AA;

[0032] Figure 13 yes Figure 12 A magnified schematic diagram of area a in the middle;

[0033] Figure 14 This is a schematic structural diagram of the mixing tank and the heat exchange square tube after assembly in Example 2 of the present invention;

[0034] Figure 15 This is a schematic diagram of the structure after the mixing tank and the heat exchange square tube are separated in Example 2 of the present invention;

[0035] Figure 16 This is a schematic structural diagram of the steam ring and the heating shell after assembly in the second embodiment of the present invention;

[0036] Figure 17 yes Figure 16 Cross-sectional view of the middle BB;

[0037] Figure 18 yes Figure 17 Enlarged schematic diagram of area b.

[0038] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0039] 101. Workbench; 102. Extruder body; 103. Extrusion module; 104. Molding die body; 105. Extrusion motor; 106. Extrusion screw; 107. Extrusion drill; 108. Extrusion check valve; 109. Mounting seat; 110. Mixing tank; 201. Guide sleeve; 202. Vacuum air pump; 203. Degassing housing; 204. Pressure relief channel; 205. Closing plate; 206. Connecting hole; 207. Guide check valve; 208. Ultrasonic generator; 209. Guide ring; 210. First mounting hole; 212. First check valve; 213. Ultrasonic guide column; 214. Extrusion screw; 215. Defoaming filter plate; 301. Storage Liquid tank; 302, injection port; 303, guide groove; 304, pressure pump; 305, liquid storage tank; 306, closing cover; 307, second mounting hole; 308, liquid level sensor; 401, heating layer; 402, heating shell; 403, liquid storage tank; 404, heater; 405, heat exchange rib; 406, steam ring; 407, ring cavity; 408, liquid storage ring groove; 409, condenser; 410, drip guide protrusion; 412, second one-way air valve; 413, heat exchange square tube; 414, cooling channel; 415, air inlet connector; 416, air outlet connector; 417, guide condensation plate; 418, heat exchange pipe; 419, heat exchange plate; 420, infusion pump. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but are not intended to limit the scope of protection of the present invention.

[0041] Example 1: As shown in the attached Figures 1 to 13 As shown:

[0042] The present invention provides an injection molding device for manufacturing pressure vessels, comprising a workbench 101 and an extruder main body 102 arranged above the workbench, an extrusion channel being arranged inside the extrusion channel, an extrusion module 103 being arranged at one end of the extrusion channel, a decompression degassing component being arranged between the extruder main body 102 and the extrusion module 103, the decompression degassing component comprising a guide sleeve 201 and two groups of vacuum air pumps 202, one end of the extrusion channel being connected to the extrusion module 103 via the guide sleeve 201, and the suction ends of the two groups of vacuum air pumps 202 being connected to the guide sleeve 201; a molding die main body 104 is also arranged above the workbench 101 corresponding to the extruder main body 102, an anti-adhesion component being arranged inside the molding die main body 104, the anti-adhesion component comprising a liquid storage tank 301 and multiple groups of injection ports 302.

[0043] Please refer to Figure 3 and Figure 4As shown, a degassing shell 203 is provided between the extruder body 102 and the extrusion module 103, and a pressure reducing channel 204 is provided on the degassing shell 203. The guide sleeve 201 is passed through the pressure reducing channel 204, and a closing plate 205 is installed at one end of the degassing shell 203 close to the extruder body 102. A plurality of connecting holes 206 are provided on the closing plate 205, and a guide check valve 207 is provided in each group of connecting holes 206. One end of the pressure reducing channel 204 is connected to the extrusion module 103, and the other end is connected to the extrusion channel through a plurality of guide check valves 207, so that the material can be processed through the pressure reducing degassing component on the pressure reducing channel 204 in the process of flowing from the extrusion channel to the extrusion module 103.

[0044] Please refer to Figure 3 and Figure 4 As shown, the decompression degassing assembly also includes four groups of ultrasonic generators 208, two groups of guide rings 209 are arranged in the guide sleeve 201, and six groups of first mounting holes 210 are respectively opened on the two groups of guide rings 209 and the degassing shell 203. Two groups of vacuum air pumps 202 are installed on the top of the degassing shell 203. The vacuum air pump 202 can adopt the TY-60-G model. A first one-way air valve 212 is respectively provided in one group of the first mounting holes 210 on the two groups of guide rings 209. The two groups of first one-way air valves 212 are respectively connected to the two groups of vacuum air pumps 202 through two groups of air pipes. When the device is running, the vacuum air pump 202 works to form a low-pressure area in the guide sleeve 201. It should be noted that a pressure sensor is provided in the guide sleeve 201, which is not shown in the figure, to detect the pressure of the low-pressure area. The pressure of the low-pressure area in the guide sleeve 201 is usually maintained at 5kPa~10kPa, which is suitable for some people who are more sensitive to pressure. Sensitive special materials can fine-tune the pressure in the low-pressure zone to 8kPa~12kPa; when the molding material flows through here, the bubbles inside the material will expand under the low-pressure environment and then be extracted; the other four groups of first mounting holes 210 are all installed with ultrasonic guide columns 213, and one end of the four groups of ultrasonic guide columns 213 is connected to the ultrasonic generator 208. The ultrasonic generator 208 can be of JLT model. In the process of the material passing through the guide sleeve 201, the ultrasonic generator 208 emits ultrasonic waves. The frequency of the ultrasonic generator 208 is usually set between 20kHz and 40kHz. At this frequency, when the ultrasonic wave propagates in the material, it can generate cavitation bubbles of sufficient strength, causing the bubbles inside the material to rupture, aggregate and be discharged. Through this multiple action, the bubbles in the molding material can be effectively removed, reducing the defects caused by bubbles inside the product, and improving the internal quality and pressure-bearing performance of the pressure vessel.

[0045] Please refer to Figure 4As shown, an extrusion motor 105 is installed at one end of the extruder body 102, and the main shaft of the extrusion motor 105 is connected to the transmission shaft. An extrusion screw 106 is provided in the extrusion channel, and the extrusion screw 106 is sleeved on the transmission shaft. Similarly, an extrusion screw 214 is also provided in the pressure reducing channel 204, and the extrusion screw 214 is also sleeved on the transmission shaft. Four groups of defoaming filter plates 215 are respectively installed on the circumferential side of the extrusion screw 214 corresponding to the two groups of guide rings 209. These four groups of defoaming filter plates 215 can intercept and break larger bubbles during the flow of materials and assist in the removal of bubbles; an extrusion drill bit 107 is provided at one end of the extrusion screw 214 close to the extrusion module 103, and an extrusion check valve 108 is provided on the extrusion port of the extrusion module 103 corresponding to the molding mold body 104. The extrusion check valve 108 can control the flow direction of the material to ensure that the material can only flow from the extrusion module 103 to the molding mold body 104 to prevent the material from flowing back.

[0046] Please refer to Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, a liquid reservoir 301 is provided at the top of the front mold core corresponding to the cavity of the rear mold core of the molding mold body 104, and a plurality of injection ports 302 are provided at the bottom of the front mold core corresponding to the cavity. A guide groove 303 is provided on one side of the liquid reservoir 301, and the guide groove 303 is connected with the plurality of injection ports 302. When demoulding is required, the cleaning lubricating liquid in the liquid reservoir 301 can be sprayed on the surface of the mold cavity through the guide groove 303 and the plurality of injection ports 302. During the demoulding process, the cleaning lubricating liquid will form a lubricating layer between the container and the mold, reducing the degree of adhesion, so that the container can be smoothly removed from the mold, avoiding problems such as scratches and deformation on the container surface caused by demoulding difficulties, thereby improving the product yield; the anti-adhesion component also includes a pressure pump 304, and a liquid reservoir 304 for holding the cleaning lubricating liquid is provided at the bottom of the molding mold body 104. 05. A pressure pump 304 is installed on one side of the front mold core. The pressure pump 304 is connected to the liquid storage tank 305 and the liquid storage tank 301 through pipelines. A groove is provided on one side of the forming mold body 104 corresponding to the pressure pump 304. A closed cover plate 306 is provided on the top of the liquid storage tank 301. A second mounting hole 307 is provided on the top of the closed cover plate 306. A liquid level sensor 308 is provided in the second mounting hole 307 corresponding to the liquid storage tank 301. The liquid level sensor 308 can be a CYW11 model. When it is necessary to spray the cleaning lubricant, start the pressure pump 304. The pressure pump 304 transports the cleaning lubricant in the liquid storage tank 305 to the liquid storage tank 301 until the liquid level of the cleaning lubricant in the liquid storage tank 301 overflows the guide groove 303, so that the cleaning lubricant can be sprayed smoothly through the guide groove 303 and the injection port 302.

[0047] Please refer to Figure 9 and Figure 10As shown, a mounting base 109 is provided on the top of the extruder body 102, and a mixing tank 110 is provided on the top of the mounting base 109 corresponding to the filling port of the extruder body 102. A mixing structure is provided in the mixing tank 110, which can mix the molding materials entering the mixing tank 110. A material preheating component is provided on the mixing tank 110, and the material preheating component includes a heating layer 401. A heating shell 402 is provided on the outside of the mixing tank 110, and a heating layer 401 is formed between the heating shell 402 and the mixing tank 110. A temperature sensor is provided in the heating layer 401, which is not shown in the figure and can detect the temperature of the heating layer 401. 01 temperature; a liquid holding tank 403 is provided at the bottom of the heating shell 402, and a heater 404 is provided between the heating shell 402 and the mounting seat 109; when the device is running, the liquid in the liquid holding tank 403 is heated by utilizing the heat generated by the heater 404, the liquid evaporates due to the heat, and the generated steam fills the heating layer 401, thereby preheating the molding material in the mixing tank 110; heat exchange ribs 405 are provided on the peripheral side of the mixing tank 110, and the heat exchange ribs 405 can increase the contact area between the mixing tank 110 and the steam in the heating layer 401, thereby improving the heat transfer efficiency and making the material preheating more sufficient.

[0048] It should be noted that in the material preheating process, if the molding material is a common thermoplastic plastic, the heater 404 will heat the liquid in the liquid tank 403 at the bottom of the heating shell 402 to 180 degrees to 200 degrees, so that the temperature of the generated steam can be maintained at 170 degrees to 190 degrees. This steam temperature range can soften the material and improve its fluidity and plasticity.

[0049] For polyethylene material, the heater 404 will heat the liquid in the liquid tank 403 to 130 degrees to 150 degrees, so that the temperature of the generated steam can be maintained at 120 degrees to 140 degrees, thereby improving the fluidity of the polyethylene material and enhancing its plasticity.

[0050] Please refer to Figure 12 and Figure 13 As shown, a steam ring 406 is provided on the top of the heating layer 401, and an annular cavity 407 is provided in the steam ring 406. A plurality of through holes are provided at the bottom of the annular cavity 407 to communicate with the heating layer 401. Liquid storage annular grooves 408 are provided on the outside of the plurality of through holes. A condenser 409 is provided at the top of the annular cavity 407 corresponding to the liquid storage annular groove 408. The top of the condenser 409 is connected to an external condensation device. A plurality of drip guide protrusions 410 are provided at the bottom of the condenser 409. The plurality of drip guide protrusions 410 are all facing the liquid storage annular groove 408. When the steam in the heating layer 401 rises, it will enter the annular cavity 407 through the plurality of through holes. At the top of the annular cavity 407, the steam encounters the condenser 409 and is condensed into liquid. Under the action of gravity, the condensed liquid flows into the liquid storage annular groove 408 along the drip guide protrusions 410, thereby realizing the condensation of steam and the collection of liquid.

[0051] Please refer to Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 and Figure 18 As shown, a steam ring 406 is provided on the top of the heating layer 401, and an annular cavity 407 is provided in the steam ring 406. A plurality of groups of third mounting holes are provided at the bottom of the annular cavity 407 to communicate with the heating layer 401. Second one-way air valves 412 are provided in the plurality of groups of third mounting holes, and liquid storage annular grooves 408 are provided on the outside of the plurality of groups of second one-way air valves 412. A heat exchange square tube 413 is provided on the top of the annular cavity 407, and a cooling channel 414 is provided in the heat exchange square tube 413. The two ends of the cooling channel 414 are respectively connected to an air inlet joint 415 and an air outlet joint 416, and the air inlet joint 415 and the air outlet joint 416 are both connected to the external air circuit. A plurality of groups of guide condensation plates 417 are provided at the bottom of the heat exchange square tube 413 corresponding to the liquid storage annular groove 408. A slope is provided on one side of the plurality of groups of guide condensation plates 417 close to the plurality of groups of third mounting holes, and the other side is connected to the inner wall of the annular cavity 407.

[0052] Please refer to Figure 9 and Figure 10 As shown, a heat exchange pipe 418 and multiple groups of heat exchange plates 419 are provided in the liquid storage tank 301, and the multiple groups of heat exchange plates 419 are all sleeved on the heat exchange pipe 418, thereby increasing the contact area between the heat exchange pipe 418 and the clean lubricating oil in the liquid storage tank 301. One side of the heat exchange pipe 418 is connected to the liquid storage ring groove 408 through a first pipeline, and the other side is connected to the liquid storage tank 403 through a second pipeline. An infusion pump 420 is provided on the second pipeline. By starting the infusion pump 420, the liquid in the liquid storage tank 403 enters the heat exchange pipe 418 through the first pipeline. In the heat exchange pipe 418, the liquid exchanges heat with the clean lubricating oil in the liquid storage tank 301, and the heat carried by the liquid is transferred to the clean lubricating oil, thereby auxiliary cooling of the cavity of the molding mold body 104, thereby accelerating the cooling and molding speed of the molding material in the cavity.

[0053] Example 2: Based on the injection molding apparatus for pressure vessel manufacturing provided in Example 1 of this application, Example 2 of this application provides an injection molding apparatus for pressure vessel manufacturing. This Example 2 is merely a preferred embodiment of Example 1; implementation of Example 2 will not affect the independent implementation of Example 1. The following further describes Example 2 of the present invention.

[0054] Please refer to Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 and Figure 18As shown, a steam ring 406 is provided on the top of the heating layer 401, and an annular cavity 407 is provided in the steam ring 406. A plurality of groups of third mounting holes are evenly distributed on the bottom of the annular cavity 407. Through the arrangement of these third mounting holes, the annular cavity 407 is connected with the heating layer 401 below. A second one-way air valve 412 is installed in each third mounting hole, which only allows steam to enter the annular cavity 407 from the heating layer 401 in one direction to prevent the backflow of steam and ensure the unidirectionality and stability of the entire steam flow path; a liquid storage annular groove 408 is provided around the outer side of the plurality of groups of second one-way air valves 412, which provides a place for the subsequent collection and storage of condensed liquid, and a heat exchange square tube 413 is installed on the top of the annular cavity 407. A cooling channel 414 is provided inside the heat exchange square tube 413, and both ends of the cooling channel 414 are connected to the air inlet Connector 415 and air outlet connector 416. When the device is running, cold air enters the cooling channel 414 through the air inlet connector 415. During the flow in the channel, heat exchange occurs with the tube wall of the heat exchange square tube 413. The bottom of the heat exchange square tube 413 corresponds to the position of the liquid storage ring groove 408, and multiple groups of guide condensation plates 417 are provided. These guide condensation plates 417 are provided with an inclined surface on one side close to the multiple groups of third mounting holes, and the other side is connected to the inner wall of the annular cavity 407. When the hot steam rises and contacts the bottom of the heat exchange square tube 413, the cold air flows in the cooling channel 414 and takes away the heat, and the steam is quickly cooled and liquefied. The liquefied liquid droplets move to the inner wall of the annular cavity 407 and slide into the liquid storage ring groove 408 under the guidance of gravity and the inclined surface of the guide condensation plate 417, thereby completing the condensation of the steam and the collection of the liquid.

[0055] Compared with the embodiment 1 in which the condenser tube 409 is used to condense the steam in the annular cavity 407, the embodiment 2 sets a heat exchange square tube 413 on the top of the annular cavity 407 and sets a cooling channel 414 in the heat exchange square tube 413. The main difference is that the cold air can be used to flow in the cooling channel 414 to cool the steam. Not only can the heat exchange between the cold air and the wall of the heat exchange square tube 413 be used to quickly reduce the temperature of the steam and promote its liquefaction, but the flow rate and temperature of the air at the air inlet joint 415 and the air outlet joint 416 can also be adjusted according to actual needs to control the condensation effect. The multiple sets of drip guide protrusions 410 are replaced with multiple sets of guide condensation plates 417, which increase the contact area with the steam in the annular cavity 407. At the same time, the condensed liquid can be guided to the inner wall of the annular cavity 407 along the inclined surface on one side of the guide condensation plate 417 to prevent the liquid from splashing when dripping into the liquid storage tank 403; therefore, compared with the method of using the condensation tube 409 and multiple sets of drip guide protrusions 410, this design can effectively improve the steam condensation efficiency and reduce the residual steam in the annular cavity 407, thereby further improving the collection amount and collection efficiency of the condensed liquid; the remaining conditions are consistent with those in Example 1, so they will not be repeated in this example.

[0056] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. An injection molding device for manufacturing a pressure vessel, comprising a workbench (101) and an extruder body (102) arranged above the workbench, characterized in that: An extrusion channel is provided on the extruder body (102), an extrusion module (103) is provided at one end of the extrusion channel, a decompression degassing component is provided between the extruder body (102) and the extrusion module (103), the decompression degassing component includes a guide sleeve (201) and two groups of vacuum air pumps (202), one end of the extrusion channel is connected to the extrusion module (103) through the guide sleeve (201), the suction ends of the two groups of vacuum air pumps (202) are connected to the guide sleeve (201), a forming mold body (104) is also provided above the workbench (101) corresponding to the extruder body (102), an anti-adhesion component is provided in the forming mold body (104), and the anti-adhesion component includes a liquid storage tank (301) and multiple groups of injection ports (302); The liquid storage tank (301) is provided at the top of the front mold core of the molding die main body (104) corresponding to the molding cavity of the rear mold core, and multiple groups of injection ports (302) are provided at the bottom of the front mold core corresponding to the molding cavity. A guide groove (303) is provided on one side of the liquid storage tank (301) and is connected to the multiple groups of injection ports (302). The anti-adhesion component also includes a pressure pump (304). A liquid storage tank (305) for containing cleaning lubricating liquid is provided at the bottom of the molding die main body (104); A mounting seat (109) is provided on the top of the extruder body (102), a mixing tank (110) is provided on the top of the mounting seat (109) corresponding to the filling port of the extruder body (102), a mixing structure is provided in the mixing tank (110), a material preheating component is provided on the mixing tank (110), and the material preheating component includes a heating layer (401), a heating shell (402) is provided on the outside of the mixing tank (110), the heating layer (401) is formed between the heating shell (402) and the mixing tank (110), a liquid tank (403) is provided at the bottom of the heating shell (402), a heater (404) is provided between the heating shell (402) and the mounting seat (109), and heat exchange ribs (405) are provided on the periphery of the mixing tank (110); A steam ring (406) is provided on the top of the heating layer (401), an annular cavity (407) is provided in the steam ring (406), a plurality of through holes are provided at the bottom of the annular cavity (407) and are in communication with the heating layer (401), a plurality of liquid storage annular grooves (408) are provided on the outside of the plurality of through holes, a condenser (409) is provided on the top of the annular cavity (407) corresponding to the liquid storage annular groove (408), a plurality of drip guide protrusions (410) are provided at the bottom of the condenser (409), and the plurality of drip guide protrusions (410) are all oriented toward the liquid storage annular groove (408); A heat exchange pipe (418) and multiple groups of heat exchange fins (419) are provided in the liquid storage tank (301). The multiple groups of heat exchange fins (419) are all sleeved on the heat exchange pipe (418). One side of the heat exchange pipe (418) is connected to the liquid storage ring groove (408) through a first pipeline, and the other side is connected to the liquid storage tank (403) through a second pipeline. An infusion pump (420) is provided on the second pipeline.

2. The injection molding device for manufacturing a pressure vessel according to claim 1, characterized in that: A degassing shell (203) is provided between the extruder body (102) and the extrusion module (103), a pressure reducing channel (204) is provided on the degassing shell (203), the flow guide sleeve (201) is passed through the pressure reducing channel (204), a closing plate (205) is provided at one end of the degassing shell (203) close to the extruder body (102), a plurality of groups of connecting holes (206) are provided on the closing plate (205), and a flow guide one-way valve (207) is provided in each of the plurality of connecting holes (206), one end of the pressure reducing channel (204) is connected to the extrusion module (103), and the other end is connected to the extrusion channel through the plurality of groups of flow guide one-way valves (207).

3. The injection molding device for manufacturing a pressure vessel according to claim 2, characterized in that: The decompression degassing assembly also includes four groups of ultrasonic generators (208), two groups of guide rings (209) are arranged in the guide sleeve (201), and six groups of first mounting holes (210) are respectively arranged on the two groups of guide rings (209) and the degassing shell (203), and two groups of vacuum air pumps (202) are arranged on the top of the degassing shell (203), and a first one-way air valve (212) is arranged in one group of the first mounting holes (210) on the two groups of guide rings (209), and the two groups of the first one-way air valves (212) are connected to the two groups of vacuum air pumps (202) through two groups of air pipes, respectively. The other four groups of the first mounting holes (210) are each provided with an ultrasonic guide column (213), and one end of the four groups of the ultrasonic guide columns (213) is provided with the ultrasonic generator (208).

4. The injection molding device for manufacturing a pressure vessel according to claim 3, characterized in that: An extrusion motor (105) is provided at one end of the extruder main body (102), a transmission shaft is provided on the main shaft of the extrusion motor (105), an extrusion screw (106) is provided in the extrusion channel, the extrusion screw (106) is sleeved on the transmission shaft, an extrusion screw (214) is provided in the decompression channel (204), the extrusion screw (214) is sleeved on the transmission shaft, four groups of defoaming filter plates (215) are respectively provided on the circumference of the extrusion screw (214) corresponding to the two groups of guide rings (209), an extrusion drill bit (107) is provided at one end of the extrusion screw (214) close to the extrusion module (103), and an extrusion check valve (108) is provided on the extrusion port of the extrusion module (103) corresponding to the molding die main body (104).

5. The injection molding device for manufacturing a pressure vessel according to claim 1, characterized in that: The pressure pump (304) is provided on one side of the front mold core, and the pressure pump (304) is connected to the liquid storage box (305) and the liquid storage tank (301) through pipelines. A groove is provided on one side of the A plate of the molding mold body (104) corresponding to the pressure pump (304). A closed cover plate (306) is provided on the top of the liquid storage tank (301). A second mounting hole (307) is provided on the top of the closed cover plate (306), and a liquid level sensor (308) is provided in the second mounting hole (307) corresponding to the liquid storage tank (301).

6. The injection molding device for manufacturing a pressure vessel according to claim 1, characterized in that: A steam ring (406) is provided on the top of the heating layer (401), an annular cavity (407) is provided in the steam ring (406), a plurality of groups of third mounting holes are provided at the bottom of the annular cavity (407) and are in communication with the heating layer (401), a second one-way air valve (412) is provided in each of the plurality of groups of the third mounting holes, a liquid storage annular groove (408) is provided on the outside of the plurality of groups of the second one-way air valves (412), a heat exchange square tube (413) is provided on the top of the annular cavity (407), and a heat exchange square tube (413) is provided on the top of the annular cavity (407). ), a cooling channel (414) is provided in the heat exchange square tube (413), and the two ends of the cooling channel (414) are respectively connected to an air inlet joint (415) and an air outlet joint (416), and a plurality of groups of guide condensation plates (417) are provided at the bottom of the heat exchange square tube (413) corresponding to the liquid storage ring groove (408), and a slope is provided on one side of the plurality of groups of guide condensation plates (417) close to the plurality of groups of third mounting holes, and the other side is connected to the inner wall of the ring cavity (407).

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