Injection molding device with intelligent temperature control function for sealing element

Abstract

The invention discloses a sealing element injection molding device with an intelligent temperature control function, and relates to the technical field of injection molding.The injection molding device comprises an injection molding machine body, a first mold base and a second mold base, a boss is arranged on the side, close to the first mold base, of the injection molding machine body, and the first mold base is connected with the injection molding machine body through a push-pull mechanism; compared with an existing injection molding device, the injection molding device is provided with the cleaning assembly and the multiple sets of first temperature measuring elements, and on one hand, whether the temperature of cooling water in the cooling channel reaches the standard or not is detected through the multiple sets of first temperature measuring elements; according to the sealing element forming device, whether impurities such as water scale condensed on the inner wall of the cooling channel affect heat transfer in the sealing element forming process or not is judged through the multiple sets of first temperature measuring elements, the cleaning assembly can clean the cooling channel in the sealing element cooling forming process, and then the working efficiency is improved; therefore, the cooling water in the cooling channel is always ensured to be at a qualified temperature.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to an injection molding device for sealing parts with an intelligent temperature control function. Background Art

[0002] In modern industrial production, seals are key components widely used in machinery, automobiles, aerospace and many other fields. Their quality and performance play a vital role in the sealing, reliability and service life of the entire equipment or system. Injection molding is one of the most common and efficient production methods in seal manufacturing.

[0003] At present, the sealing injection molding device usually uses a water cooling system to cool and mold the material in the cavity. However, in the actual working process, the water cooling system sometimes fails due to various reasons. The measure usually taken at present is to shut down for maintenance, but this operation mode can easily lead to the scrapping of the sealing parts being produced, which is not conducive to reducing production costs. In addition, the water cooling system of the injection molding device will inevitably encounter scale condensation during the working process. For example, the patent "CN113059770A A kind of anti-blocking cooling water channel for injection molds" discloses a technical solution for automatically cleaning the cooling channel of the injection mold, but this technical solution is easy to affect the flow of cooling water during the working process. In the mass injection molding production process, the injection molding work and the cleaning work cannot be carried out simultaneously, thereby affecting the work efficiency. Finally, in order to ensure the quality of injection molding, some injection molding devices will first introduce compressed gas into the cavity after the movable mold and the fixed mold are closed, and judge the sealing between the ejector and the movable mold by the airtightness detection method. When the detection is qualified, the compressed gas in the cavity is then pumped away. This sealing detection method is inefficient and is not conducive to mass production of sealing parts. Summary of the invention

[0004] The object of the present invention is to provide an injection molding device for a seal with an intelligent temperature control function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding device for a seal with an intelligent temperature control function, comprising an injection molding machine body, a first mold base and a second mold base, a boss is arranged on one side of the injection molding machine body close to the first mold base, the first mold base is connected to the injection molding machine body through a push-pull mechanism, the second mold base is connected to a feeding system, a support seat and a mounting seat are arranged in sequence on one side of the first mold base close to the second mold base, a movable mold is arranged inside one end of the mounting seat close to the second mold base, a fixed mold is arranged inside one end of the second mold base close to the mounting seat, an ejection mechanism is arranged inside the support seat, a cooling channel is arranged inside the movable mold, a temperature regulating mechanism is arranged on the outside of the mounting seat, and an external cooling system is connected to the cooling channel through the temperature regulating mechanism. The movable mold and the fixed mold are connected to each other. The present invention controls the closing and separation of the movable mold and the fixed mold through a push-pull mechanism. When the movable mold and the fixed mold are closed, the molten material is injected into the cavity between the movable mold and the fixed mold through the feeding system to form the sealing component. Compared with the current injection molding device, the present invention is provided with a temperature regulating mechanism. The temperature regulating mechanism controls the cooling water delivered to the cooling channel by the external cooling system. Under normal circumstances, the temperature regulating mechanism is in a non-working state. When the temperature of the cooling water delivered to the cooling channel by the external cooling system does not meet the standard due to various reasons, the temperature regulating mechanism is used to adjust the temperature of the cooling water delivered by the external cooling system to ensure that the cooling water in the cooling channel always maintains a qualified temperature, thereby avoiding the sealing component being affected during the cooling and molding process.

[0006] Furthermore, a first sealing seat is provided at one end of the cooling channel close to the mounting seat, and the first sealing seat is detachably mounted on the movable mold by bolts. The present invention ensures the sealing of the cooling channel by the first sealing seat. The present invention provides a first temperature measuring element and a cleaning component inside the cooling channel. The first temperature measuring element is provided in several groups, and several groups of first temperature measuring elements are evenly arranged on the inner wall of the cooling channel. On the one hand, the cooling water temperature in the cooling channel is detected to be up to standard by several groups of first temperature measuring elements. On the other hand, it can be determined by several groups of first temperature measuring elements whether impurities such as scale condensed on the inner wall of the cooling channel affect the heat transfer during the molding process of the seal. When there is too much scale or other impurities condensed on the inner wall of the cooling channel, the cooling channel can be cleaned by the cleaning component to ensure the normal progress of the injection molding work.

[0007] Furthermore, a second motor is provided on the side of the movable mold away from the second mold base, and the cleaning component includes a turntable and a cleaning frame. The cleaning frame is provided with two groups, and the two groups of cleaning frames are relatively arranged at the two ends of the outer wall of the turntable, and the turntable is connected to the working end of the second motor through a connecting shaft. When working, the cleaning component relies on the second motor to drive the turntable and the two groups of cleaning frames to rotate through the second motor and the connecting shaft, and the inner wall surface of the cooling channel is cleaned by the two groups of cleaning frames. In the present invention, the thickness of the cleaning frame is less than the thickness of the cooling channel, so as to reduce the influence of the two groups of cleaning frames on the flow of cooling water in the cooling channel when rotating. Compared with the cleaning components used in the current injection molding equipment, the present invention can clean the cooling channel during the cooling and forming process of the seal, thereby improving the work efficiency.

[0008] Furthermore, a drainage channel is provided at one end of the cooling channel, and a liquid inlet channel is provided at the other end of the cooling channel. The temperature regulating mechanism includes a regulating box, and a first cavity and a second cavity are provided inside the regulating box. One end of the first cavity is connected with the liquid inlet channel through a first hose, and the other end of the first cavity is connected with the external cooling system through an inlet pipe, one end of the second cavity is connected with the drainage channel through a second hose, and the other end of the second cavity is connected with a cooling water recovery system through an outlet pipe. Several groups of refrigeration elements are provided in the first cavity. During operation of the present invention, the cooling water transported into the cooling channel by the external cooling system will first pass through the first cavity. Under normal circumstances, several groups of refrigeration elements are in a non-working state. When the temperature of the cooling water transported into the cooling channel by the external cooling system does not meet the standard due to various reasons, the cooling water in the first cavity is temperature-regulated by several groups of refrigeration elements to ensure that the cooling water subsequently flowing into the cooling channel always maintains a qualified temperature to avoid the seal being affected during the cooling and forming process.

[0009] Furthermore, a first rectangular frame and a second rectangular frame are also provided inside the first cavity, the first rectangular frame is provided with several groups, and several groups of first rectangular frames are sleeved at the inner lower end of the first cavity, the second rectangular frame is provided with several groups, and several groups of second rectangular frames are sleeved at the inner lower end of the first cavity, and several groups of refrigeration elements are arranged between adjacent first rectangular frames and second rectangular frames. The present invention extends the cooling water flow distance in the first cavity by using several groups of first rectangular frames and several groups of second rectangular frames, thereby ensuring that the temperature regulation effect of several groups of refrigeration elements on the cooling water in the first cavity meets subsequent use.

[0010] Furthermore, the ejection mechanism includes a movable plate, a striker is provided on one side of the movable plate close to the boss, and a plurality of ejector rods are provided on one side of the movable plate close to the movable mold. After the cooling and forming of the seal is completed, the movable mold is separated from the fixed mold by controlling the push-pull mechanism. When the striker contacts the boss, if the push-pull mechanism continues to control the movable mold to move away from the fixed mold, the plurality of ejector rods will apply a group of forces to the formed seal, thereby causing the seal to separate from the movable mold. In the present invention, a plurality of first through holes are provided on the movable mold, and a plurality of first through holes are provided on the mounting seat. A plurality of second through holes are provided, each group of push rods is aligned with a group of first through holes and a group of second through holes, the diameter of one end of each group of first through holes close to the second die base is adapted to the diameter of the push rod, the diameter of one end of each group of first through holes away from the second die base is larger than the diameter of the push rod, a group of second sealing seats are provided at one end of each group of second through holes close to the movable plate, a group of air intake channels and pressure measuring elements are provided on the outside of each group of second through holes, the diameter of each group of second through holes is larger than the diameter of the push rod, and when the present invention is in use, several groups of air intake channels can be connected to an external air pump, each Before the first injection molding work, the staff can deliver low-temperature gas of a certain pressure into the air inlet channel through an external air pump (the specific delivered gas pressure can be designed according to actual needs). At this time, the low-temperature gas will enter the first through hole and the second through hole along the air inlet channel, and the air pressure in the first through hole and the second through hole is detected by a pressure measuring element, and then compared with the air pressure delivered by the external air pump into the air inlet channel. At this time, the staff can indirectly judge whether there is a gap between the ejector rod and the end of the first through hole close to the second mold base, so as to avoid the occurrence of burrs and the like on the side of the seal close to the first through hole during subsequent injection molding. After the detection is completed, the low-temperature gas in the first through hole and the second through hole is extracted by an external air pump to avoid affecting the subsequent detection. After each injection molding of the present invention, if low-temperature gas is delivered to the air inlet channel by an external air pump, the ejector rod can be cooled to prevent the ejector rod from being stuck in the first through hole and unable to extend due to thermal expansion and the like. Compared with the current sealing detection method of the injection molding device, the present invention does not need to first inflate the cavity and then evacuate, thereby greatly improving the work efficiency.

[0011] Furthermore, two groups of sealing rings are arranged inside the second sealing seat, and a second temperature measuring element is arranged between the two groups of sealing rings. The present invention can prevent the low-temperature gas from leaking into the external environment when the external air pump transports the low-temperature gas into the second through hole through the two groups of sealing rings. When the two groups of sealing rings are used for a long time and the sealing is poor, the low-temperature gas in the second through hole will flow into the outside through the second temperature measuring element. The staff can determine the working status of the two groups of sealing rings in real time by monitoring the signal output by the second temperature measuring element, so as to facilitate the staff to replace the sealing rings in time and avoid being affected when detecting the air pressure in the first through hole and the second through hole subsequently.

[0012] Furthermore, a filter assembly is disposed inside the second cavity, and the second hose is connected to the filter assembly. The present invention can purify the cooling water discharged from the cooling channel through the filter assembly to facilitate the subsequent recycling and reuse of the cooling water.

[0013] Furthermore, the filter assembly includes a filter frame and a first motor, the first motor is arranged on the outside of the adjustment box, one end of the filter frame is connected to the second hose, and the other end of the filter frame is connected to the working end of the first motor. Two groups of mounting holes are arranged on the filter frame, and a group of filter screens are arranged in each group of mounting holes. When the cooling water discharged from the cooling channel enters the filter frame, the impurities in the cooling water will be retained on a group of filter screens at the lower end of the filter frame. The staff can start the first motor regularly to replace the positions of the two groups of filter screens to avoid blockage.

[0014] Furthermore, a waste liquid through hole is provided on the side of the second cavity close to the second hose, and the filter assembly also includes a first fixed seat and a second fixed seat, the first fixed seat is arranged at the inner upper end of the second cavity, the second fixed seat is arranged at the inner upper end of the filter frame, a jet tube is arranged in the first fixed seat, and the jet tube is connected to an external water pump, and a drainage hole is provided on the side of the second fixed seat close to the waste liquid through hole, and the drainage hole is aligned with the waste liquid through hole. When the first motor is turned on, the external water pump can be turned on synchronously. After the first motor replaces the positions of the two groups of filter screens, cleaning liquid is transported to the jet tube through the external water pump. When the filter screen with impurities enters between the first fixed seat and the second fixed seat, the cleaning liquid sprayed by the jet tube can clean the filter screen with impurities. At this time, the cleaning liquid mixed with impurities will flow to the outside along the drainage hole and the waste liquid through hole for collection by the staff.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the current injection molding device, the present invention is provided with a cleaning component and several groups of first temperature measuring elements. On the one hand, the several groups of first temperature measuring elements are used to detect whether the cooling water temperature in the cooling channel meets the standard. On the other hand, the several groups of first temperature measuring elements are used to judge whether the impurities such as scale condensed on the inner wall of the cooling channel affect the heat transfer during the molding process of the seal. When there is too much scale or other impurities condensed on the inner wall of the cooling channel, the cooling channel can be cleaned by the cleaning component to ensure the normal progress of the injection molding work. Compared with the cleaning components used in the current injection molding equipment, the cleaning component in the present invention can clean the cooling channel during the cooling and forming process of the seal, thereby improving the work efficiency. The present invention is also provided with a temperature regulating mechanism, which controls the cooling water delivered to the cooling channel by the external cooling system. Under normal circumstances, the temperature regulating mechanism is in a non-working state. When the external cooling system causes the cooling water temperature delivered to the cooling channel to fail to meet the standard due to various reasons, When the cooling water delivered by the external cooling system is adjusted in temperature by the temperature regulating mechanism, the cooling water in the cooling channel is ensured to always maintain a qualified temperature, so as to avoid the sealing member being affected during the cooling and forming process. The present invention is also provided with a first through hole and a second through hole, and the air pressure in the first through hole and the second through hole is detected by a pressure measuring element, so as to facilitate the staff to indirectly judge whether there is a gap between the ejector pin and the end of the first through hole close to the second mold base. At the same time, low-temperature gas is delivered to the air inlet channel by an external air pump, which can achieve the purpose of cooling the ejector pin and prevent the ejector pin from being stuck in the first through hole and unable to extend due to thermal expansion and other reasons. Compared with the current sealing detection method of the injection molding device, the present invention does not need to first inflate the cavity and then evacuate it, thereby greatly improving the working efficiency. Finally, the present invention is also provided with a filter assembly, which can purify the cooling water discharged from the cooling channel on the one hand, so as to facilitate the subsequent recycling and reuse of the cooling water, and on the other hand, the filter assembly has a self-cleaning function, thereby reducing the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the connection between the ejection mechanism and the movable mold of the present invention;

[0018] Figure 3 This is a schematic diagram of the seal structure produced by the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the movable mold of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0021] Figure 6 It is a schematic diagram of the internal structure of the mounting base of the present invention;

[0022] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle A part;

[0023] Figure 8 It is a schematic diagram of the temperature adjustment mechanism of the present invention from a first viewing angle;

[0024] Fig. 9 It is a schematic structural diagram of the temperature adjustment mechanism of the present invention from a second viewing angle;

[0025] Fig.10 It is a schematic diagram of the internal structure of the temperature regulating mechanism of the present invention;

[0026] Fig.11 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0027] Fig.12 For the present invention Fig.11 Schematic diagram of the BB structure;

[0028] Fig.13 It is a schematic structural diagram of the second fixing seat of the present invention.

[0029] In the figure: 1, injection molding machine body; 11, boss; 12, push-pull mechanism; 2, first mold base; 21, movable plate; 211, ejector rod; 212, striker; 22, adjustment box; 221, liquid inlet pipe; 222, liquid outlet pipe; 223, first motor; 224, first hose; 225, second hose; 226, waste liquid through hole; 227, first cavity; 2271, first rectangular frame; 2272, refrigeration element; 2273, second rectangular frame; 228, second cavity; 229, filter assembly; 2291, first fixed seat; 2292, Jet tube; 2293, second fixed seat; 2294, filter frame; 22941, filter screen; 23, movable mold; 231, second motor; 232, first sealing seat; 233, discharge channel; 234, inlet channel; 235, first temperature measuring element; 236, connecting shaft; 237, turntable; 2371, cleaning frame; 24, mounting seat; 241, inlet channel; 242, pressure measuring element; 243, second sealing seat; 2431, sealing ring; 2432, second temperature measuring element; 25, supporting seat; 3, second mold base; 4, sealing member. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example: Figure 1-Figure 5 As shown, the present invention provides a technical solution, a sealing injection molding device with intelligent temperature control function, comprising an injection molding machine body 1, a first mold base 2 and a second mold base 3, a boss 11 is arranged on the side of the injection molding machine body 1 close to the first mold base 2, the first mold base 2 is connected to the injection molding machine body 1 through a push-pull mechanism 12, the second mold base 3 is connected to the feeding system, a support seat 25 and a mounting seat 24 are arranged in sequence on the side of the first mold base 2 close to the second mold base 3, a movable mold 23 is arranged inside the end of the mounting seat 24 close to the second mold base 3, a fixed mold is arranged inside the end of the second mold base 3 close to the mounting seat 24, an ejection mechanism is arranged inside the support seat 25, a cooling channel is arranged inside the movable mold 23, a temperature regulating mechanism is arranged outside the mounting seat 24, and the external cooling system is controlled by the temperature regulating mechanism The structure is connected to the cooling channel. The present invention controls the mutual closing and separation of the movable mold 23 and the fixed mold through the push-pull mechanism 12. When the movable mold 23 and the fixed mold are closed, the molten material is injected into the cavity between the movable mold 23 and the fixed mold through the feeding system to form the seal 4. Compared with the current injection molding device, the present invention is provided with a temperature regulating mechanism. The temperature regulating mechanism controls the cooling water transported into the cooling channel by the external cooling system. Under normal circumstances, the temperature regulating mechanism is in a non-working state. When the temperature of the cooling water transported into the cooling channel by the external cooling system does not meet the standard due to various reasons, the temperature regulating mechanism is used to adjust the temperature of the cooling water transported by the external cooling system to ensure that the cooling water in the cooling channel always maintains a qualified temperature, thereby avoiding the seal 4 from being affected during the cooling and molding process.

[0032] like Figure 2 , Figure 4As shown, a first sealing seat 232 is provided at one end of the cooling channel close to the mounting seat 24. The first sealing seat 232 is detachably mounted on the movable mold 23 by bolts. The present invention ensures the sealing of the cooling channel by the first sealing seat 232. The present invention is provided with a first temperature measuring element 235 and a cleaning assembly inside the cooling channel. The first temperature measuring element 235 is provided in several groups, and several groups of first temperature measuring elements 235 are evenly arranged on the inner wall of the cooling channel. On the one hand, the cooling water temperature in the cooling channel is detected by several groups of first temperature measuring elements 235. On the other hand, it can be determined by several groups of first temperature measuring elements 235 whether impurities such as scale condensed on the inner wall of the cooling channel affect the heat transfer during the molding process of the seal 4. When there is too much scale or other impurities condensed on the inner wall of the cooling channel, the cooling channel can be cleaned by the cleaning assembly to ensure the normal progress of the injection molding work.

[0033] like Figure 2 , Figure 4 , Figure 5 As shown, a second motor 231 is provided on the side of the movable mold 23 away from the second mold base 3, and the cleaning component includes a turntable 237 and a cleaning frame 2371. The cleaning frame 2371 is provided with two groups, and the two groups of cleaning frames 2371 are relatively arranged at the two ends of the outer wall of the turntable 237. The turntable 237 is connected to the working end of the second motor 231 through a connecting shaft 236. When working, the cleaning component relies on the second motor 231, and drives the turntable 237 and the two groups of cleaning frames 2371 to rotate through the second motor 231 and the connecting shaft 236. The inner wall surface of the cooling channel is cleaned by the two groups of cleaning frames 2371. In the present invention, the thickness of the cleaning frame 2371 is less than the thickness of the cooling channel, so as to reduce the influence of the two groups of cleaning frames 2371 on the flow of cooling water in the cooling channel when rotating. Compared with the cleaning components used in the current injection molding equipment, the present invention can clean the cooling channel during the cooling and forming process of the seal 4, thereby improving the working efficiency.

[0034] like Figure 4 , Figure 8-Figure 10As shown, a drain channel 233 is provided at one end of the cooling channel, and a liquid inlet channel 234 is provided at the other end of the cooling channel. The temperature regulating mechanism includes a regulating box 22, and a first cavity 227 and a second cavity 228 are provided inside the regulating box 22. One end of the first cavity 227 is connected to the liquid inlet channel 234 through a first hose 224, and the other end of the first cavity 227 is connected to the external cooling system through a liquid inlet pipe 221. One end of the second cavity 228 is connected to the drain channel 233 through a second hose 225, and the other end of the second cavity 228 is connected to the cooling water recovery system through a liquid outlet pipe 222. The first cavity 227 is connected, and a plurality of groups of refrigeration elements 2272 are arranged in the first cavity 227. During operation of the present invention, the cooling water transported into the cooling channel by the external cooling system will first pass through the first cavity 227. Under normal circumstances, the plurality of groups of refrigeration elements 2272 are in a non-working state. When the temperature of the cooling water transported into the cooling channel by the external cooling system does not meet the standard due to various reasons, the cooling water in the first cavity 227 is temperature-controlled by the plurality of groups of refrigeration elements 2272 to ensure that the cooling water subsequently flowing into the cooling channel always maintains a qualified temperature, thereby preventing the seal 4 from being affected during the cooling and forming process.

[0035] like Fig.10 As shown, the interior of the first cavity 227 is also provided with a first rectangular frame 2271 and a second rectangular frame 2273, the first rectangular frame 2271 is provided with a plurality of groups, and the plurality of groups of first rectangular frames 2271 are sleeved on the inner lower end of the first cavity 227, the second rectangular frame 2273 is provided with a plurality of groups, and the plurality of groups of second rectangular frames 2273 are sleeved on the inner lower end of the first cavity 227, and a plurality of groups of refrigeration elements 2272 are arranged between adjacent first rectangular frames 2271 and second rectangular frames 2273. The present invention extends the flow distance of cooling water in the first cavity 227 by means of a plurality of groups of first rectangular frames 2271 and a plurality of groups of second rectangular frames 2273, thereby ensuring that the temperature adjustment effect of the plurality of groups of refrigeration elements 2272 on the cooling water in the first cavity 227 satisfies subsequent use.

[0036] like Figure 2 , Figure 4 , Figure 6 , Figure 7As shown, the ejection mechanism includes a movable plate 21, a striker 212 is provided on one side of the movable plate 21 close to the boss 11, and a plurality of ejector pins 211 are provided on one side of the movable plate 21 close to the movable mold 23. After the cooling and forming of the seal 4 is completed, the movable mold 23 is separated from the fixed mold by controlling the push-pull mechanism 12. When the striker 212 contacts the boss 11, if the push-pull mechanism 12 continues to control the movable mold 23 to be away from the fixed mold, the plurality of ejector pins 211 will apply a group of forces to the molded seal 4, thereby causing the seal 4 to be separated from the movable mold 23. The present invention is provided with a plurality of first through holes on the movable mold 23, and the mounting seat 2 4 is provided with a plurality of groups of second through holes, each group of push rods 211 is aligned with a group of first through holes and a group of second through holes, the diameter of one end of each group of first through holes close to the second die base 3 is adapted to the diameter of the push rod 211, the diameter of one end of each group of first through holes away from the second die base 3 is larger than the diameter of the push rod 211, one end of each group of second through holes close to the movable plate 21 is provided with a group of second sealing seats 243, the outer side of each group of second through holes is provided with a group of air inlet channels 241 and pressure measuring elements 242, the diameter of each group of second through holes is larger than the diameter of the push rod 211, and the present invention can be used to connect a plurality of groups of air inlet channels 241 and a pressure measuring element 242. The air inlet channel 241 is connected to an external air pump. Before each injection molding operation, the staff can deliver low-temperature gas of a certain pressure into the air inlet channel 241 through the external air pump (the specific delivered gas pressure can be designed according to actual needs). At this time, the low-temperature gas will enter the first through hole and the second through hole along the air inlet channel 241. The air pressure in the first through hole and the second through hole is detected by the pressure measuring element 242, and then compared with the air pressure delivered by the external air pump to the air inlet channel 241. At this time, the staff can indirectly determine whether there is a gap between the ejector pin 211 and the end of the first through hole close to the second mold base 3. In order to avoid the occurrence of burrs and the like on the side of the seal 4 close to the first through hole during subsequent injection molding, after the detection is completed, the low-temperature gas in the first through hole and the second through hole is pumped away by an external air pump to avoid affecting the subsequent detection. After each injection molding of the present invention, if low-temperature gas is transported to the air inlet channel 241 by an external air pump, the push rod 211 can be cooled to prevent the push rod 211 from being stuck in the first through hole and unable to extend out due to thermal expansion and the like. Compared with the current sealing detection method of the injection molding device, the present invention does not need to first inflate the cavity and then evacuate it, thereby greatly improving the work efficiency.

[0037] like Figure 7As shown, two groups of sealing rings 2431 are arranged inside the second sealing seat 243, and a second temperature measuring element 2432 is arranged between the two groups of sealing rings 2431. The present invention can prevent the low-temperature gas from leaking into the external environment when the external air pump transports the low-temperature gas into the second through hole through the two groups of sealing rings 2431. When the two groups of sealing rings 2431 are used for a long time and the sealing is poor, the low-temperature gas in the second through hole will flow into the outside through the second temperature measuring element 2432. The staff can determine the working status of the two groups of sealing rings 2431 in real time by monitoring the signal output by the second temperature measuring element 2432, so as to facilitate the staff to replace the sealing rings 2431 in time and avoid being affected when detecting the air pressure in the first through hole and the second through hole later.

[0038] like Fig.10 , Fig.11 As shown, a filter assembly 229 is disposed inside the second cavity 228, and the second hose 225 is connected to the filter assembly 229. The present invention can purify the cooling water discharged from the cooling channel through the filter assembly 229 to facilitate the subsequent recycling and reuse of the cooling water.

[0039] like Fig.11 , Fig.12 As shown, the filter assembly 229 includes a filter frame 2294 and a first motor 223. The first motor 223 is arranged on the outside of the adjustment box 22. One end of the filter frame 2294 is connected to the second hose 225, and the other end of the filter frame 2294 is connected to the working end of the first motor 223. Two groups of mounting holes are arranged on the filter frame 2294, and a group of filter screens 22941 are arranged in each group of mounting holes.

[0040] like Fig.11 , Fig.12 As shown, a waste liquid through hole 226 is provided on the side of the second cavity 228 close to the second hose 225, and the filter assembly 229 also includes a first fixed seat 2291 and a second fixed seat 2293. The first fixed seat 2291 is arranged at the inner upper end of the second cavity 228, and the second fixed seat 2293 is arranged at the inner upper end of the filter frame 2294. A jet tube 2292 is arranged in the first fixed seat 2291, and the jet tube 2292 is connected to an external water pump. A drainage hole is provided on the side of the second fixed seat 2293 close to the waste liquid through hole 226, and the drainage hole is aligned with the waste liquid through hole 226.

[0041] When the cooling water discharged from the cooling channel enters the filter rack 2294, the impurities in the cooling water will be retained on a group of filter screens 22941 at the lower end of the filter rack 2294. The staff can regularly start the first motor 223 and the external water pump, replace the positions of the two groups of filter screens 22941 through the first motor 223, and transport cleaning liquid to the jet tube 2292 through the external water pump. When the filter screen 22941 with impurities enters between the first fixed seat 2291 and the second fixed seat 2293, the cleaning liquid sprayed from the jet tube 2292 can clean the filter screen 22941 with impurities. At this time, the cleaning liquid mixed with impurities will flow to the outside along the drainage hole and the waste liquid through hole 226 for collection by the staff.

[0042] The working principle of the present invention is as follows: during operation, the push-pull mechanism 12 is used to control the moving mold 23 and the fixed mold to approach and close to each other, and at the same time, a low-temperature gas of a certain pressure is delivered to the air inlet channel 241 through an external air pump, and the air pressure in the first through hole and the second through hole is detected by the pressure measuring element 242 to determine whether a gap appears between the ejector rod 211 and the end of the first through hole close to the second mold base 3. When the detection is completed, the low-temperature gas in the first through hole and the second through hole is pumped away by the external air pump, and then the molten material is injected into the cavity between the moving mold 23 and the fixed mold through the feeding system, and cooling water is delivered to the cooling channel through the external cooling system. When the external cooling system is caused to flow to the cooling channel due to various reasons, When the temperature of the cooling water transported in the channel does not meet the standard, the temperature of the cooling water transported by the external cooling system is adjusted through the temperature regulating mechanism to ensure that the cooling water in the cooling channel always maintains a qualified temperature to avoid the seal 4 being affected during the cooling and forming process. When the cooling and forming of the seal 4 is completed, the push-pull mechanism 12 controls the separation of the movable mold 23 and the fixed mold, and then transports low-temperature gas to the air inlet channel 241 through an external air pump to cool the ejector pin 211. When the striker 212 contacts the boss 11, if the push-pull mechanism 12 continues to control the movable mold 23 to move away from the fixed mold, several groups of ejector pins 211 will apply a group of forces to the molded seal 4, thereby causing the seal 4 to separate from the movable mold 23.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. The embodiments should therefore be considered exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An injection molding device for a seal with an intelligent temperature control function, comprising an injection molding machine body (1), a first mold base (2) and a second mold base (3), wherein a boss (11) is arranged on one side of the injection molding machine body (1) close to the first mold base (2), the first mold base (2) and the injection molding machine body (1) are connected via a push-pull mechanism (12), and the second mold base (3) is connected to a feeding system, characterized in that: A support seat (25) and a mounting seat (24) are sequentially arranged on one side of the first die base (2) close to the second die base (3); a movable die (23) is arranged inside one end of the mounting seat (24) close to the second die base (3); a fixed die is arranged inside one end of the second die base (3) close to the mounting seat (24); an ejection mechanism is arranged inside the support seat (25); a cooling channel is arranged inside the movable die (23); a temperature regulating mechanism is arranged outside the mounting seat (24); and an external cooling system is connected to the cooling channel via the temperature regulating mechanism.

2. The sealing injection molding device with intelligent temperature control function according to claim 1, characterized in that: A first sealing seat (232) is arranged at one end of the cooling channel close to the mounting seat (24), and a first temperature measuring element (235) and a cleaning assembly are arranged inside the cooling channel. The first temperature measuring element (235) is arranged in a plurality of groups, and the plurality of groups of first temperature measuring elements (235) are evenly arranged on the inner wall of the cooling channel.

3. The sealing injection molding device with intelligent temperature control function according to claim 2, characterized in that: A second motor (231) is arranged on a side of the movable mold (23) away from the second mold base (3); the cleaning assembly comprises a rotating disk (237) and a cleaning frame (2371); two groups of cleaning frames (2371) are arranged, and the two groups of cleaning frames (2371) are arranged oppositely at two ends of the outer wall of the rotating disk (237); the rotating disk (237) is connected to the working end of the second motor (231) via a connecting shaft (236).

4. The sealing injection molding device with intelligent temperature control function according to claim 1, characterized in that: A liquid discharge channel (233) is provided at one end of the cooling channel, and a liquid inlet channel (234) is provided at the other end of the cooling channel. The temperature regulating mechanism comprises a regulating box (22), and a first cavity (227) and a second cavity (228) are provided inside the regulating box (22). One end of the first cavity (227) is connected to the liquid inlet channel (234) through a first hose (224), and the other end of the first cavity (227) is connected to an external cooling system through a liquid inlet pipe (221). One end of the second cavity (228) is connected to the liquid discharge channel (233) through a second hose (225), and the other end of the second cavity (228) is connected to a cooling water recovery system through a liquid outlet pipe (222). A plurality of groups of refrigeration elements (2272) are provided in the first cavity (227).

5. The sealing injection molding device with intelligent temperature control function according to claim 4, characterized in that: A first rectangular frame (2271) and a second rectangular frame (2273) are also provided inside the first cavity (227); the first rectangular frame (2271) is provided with a plurality of groups, and the plurality of groups of first rectangular frames (2271) are sleeved at the lower end inside the first cavity (227); the second rectangular frame (2273) is provided with a plurality of groups, and the plurality of groups of second rectangular frames (2273) are sleeved at the lower end inside the first cavity (227); and a plurality of groups of refrigeration elements (2272) are provided between adjacent first rectangular frames (2271) and second rectangular frames (2273).

6. The sealing injection molding device with intelligent temperature control function according to claim 1, characterized in that: The ejection mechanism comprises a movable plate (21), a striker (212) is arranged on one side of the movable plate (21) close to the boss (11), a plurality of groups of ejector rods (211) are arranged on one side of the movable plate (21) close to the movable mold (23), a plurality of groups of first through holes are arranged on the movable mold (23), a plurality of groups of second through holes are arranged on the mounting seat (24), each group of ejector rods (211) is aligned with one group of first through holes and one group of second through holes, and each group of first through holes is close to the boss (11). The diameter of one end near the second mold base (3) is compatible with the diameter of the push rod (211), the diameter of one end of each group of first through holes away from the second mold base (3) is larger than the diameter of the push rod (211), one end of each group of second through holes near the movable plate (21) is provided with a group of second sealing seats (243), the outer side of each group of second through holes is provided with a group of air intake channels (241) and pressure measuring elements (242), and the diameter of each group of second through holes is larger than the diameter of the push rod (211).

7. The sealing injection molding device with intelligent temperature control function according to claim 6, characterized in that: Two groups of sealing rings (2431) are arranged inside the second sealing seat (243), and a second temperature measuring element (2432) is arranged between the two groups of sealing rings (2431).

8. The sealing injection molding device with intelligent temperature control function according to claim 4, characterized in that: A filter assembly (229) is disposed inside the second cavity (228), and the second hose (225) is in communication with the filter assembly (229).

9. The sealing injection molding device with intelligent temperature control function according to claim 8, characterized in that: The filter assembly (229) comprises a filter frame (2294) and a first motor (223), wherein the first motor (223) is arranged on the outside of the regulating box (22), one end of the filter frame (2294) is connected to the second hose (225), and the other end of the filter frame (2294) is connected to the working end of the first motor (223), and two groups of mounting holes are arranged on the filter frame (2294), and a group of filter screens (22941) are arranged in each group of mounting holes.

10. The sealing injection molding device with intelligent temperature control function according to claim 9, characterized in that: A waste liquid through hole (226) is provided on a side of the second cavity (228) close to the second hose (225), and the filter assembly (229) further comprises a first fixed seat (2291) and a second fixed seat (2293), wherein the first fixed seat (2291) is provided at the inner upper end of the second cavity (228), and the second fixed seat (2293) is provided at the inner upper end of the filter frame (2294), and a jet tube (2292) is provided in the first fixed seat (2291), and the jet tube (2292) is connected to an external water pump, and a drainage hole is provided on a side of the second fixed seat (2293) close to the waste liquid through hole (226), and the drainage hole is aligned with the waste liquid through hole (226).

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