Device for mixing resin and release agent in real time and glue injection equipment

Abstract

The utility model discloses a device for mixing resin and a release agent in real time and glue injection equipment, and belongs to the technical field of advanced molding equipment of composite materials. A second hydraulic device is arranged in the inner cavity of the injection part and can slide relative to the inner cavity; one end of the second hydraulic device is selectively connected with the outlet end of the inner cavity in a sealed mode, the second hydraulic device and the inner cavity form a first sealed cavity at the outlet end, the first sealed cavity is provided with a release agent feeding port, and the release agent feeding port is communicated with a release agent feeding pipeline. The hydraulic pressure of the second hydraulic device and the feeding pressure of the release agent are utilized, so that the feeding of the release agent can be accurately controlled; the split design of the spray needle and the piston and the exhaust hole are beneficial to preventing hydraulic oil from leaking to the first sealing cavity; the radial area of the piston is larger than that of the spray needle, injection and stopping of the release agent are facilitated, the leakage risk is reduced, and reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of advanced composite material molding equipment, in particular to a device and glue injection equipment for real-time mixing of resin and release agent. Background Art

[0002] Internal mold release agents have been widely used in composite material injection molding and compression molding processes. Compared with external mold release agents, internal mold release agents do not need to be sprayed regularly and have the advantage of convenient operation. In the prior art, internal mold release agents often require the resin and mold release agent to be fully mixed in a certain proportion, and then mixed with the curing agent and injected into the mold. In the current production process, the mold release agent is pre-added to the resin raw material barrel in a certain proportion for mixing. After mixing evenly, the resin and curing agent are mixed evenly by equipment before being injected into the mold. This results in the addition of a pre-mixing process of the resin and the mold release agent, which wastes time and reduces work efficiency; and the resin pre-added with the mold release agent is not used in time, which will lead to a waste of resin. In addition, the pre-mixing of the mold release agent cannot adjust the amount of the mold release agent according to the usage, which limits its scope of use.

[0003] In addition, existing glue injection equipment on the market also has common problems such as the glue injection pipeline and mixing nozzle are easily blocked by the cured resin, difficult to clean and have a short service life. At present, the market is in urgent need of an environmentally friendly, convenient and continuous production resin mixing system and composite material molding method. Utility Model Content

[0004] In view of the above analysis and in response to the deficiencies in the prior art, the utility model aims to provide a device and glue injection equipment for real-time mixing of resin and release agent, so as to solve at least one of the problems that the prior art is difficult to achieve convenient mixing of resins with different release agent contents, the mixing pipeline and mixing nozzle are easily clogged by the cured material, are difficult to clean, and have a short service life.

[0005] The purpose of this utility model is mainly achieved through the following technical solutions:

[0006] A device for real-time mixing of resin and release agent, the device being provided with an injection part;

[0007] A second hydraulic device is provided inside the internal chamber of the injection part, and the second hydraulic device can slide relative to the internal chamber;

[0008] One end of the second hydraulic device is selectively sealed and connected to the outlet end of the internal chamber, and the second hydraulic device and the internal chamber form a first sealed chamber at the outlet end. The first sealed chamber is provided with a release agent feed port, which is connected to the release agent feed pipeline.

[0009] Preferably, the second hydraulic device is provided with a spray needle and a piston connected in series, the spray needle and the piston are movably connected in series, and the spray needle and the piston can slide independently relative to the internal chamber.

[0010] Preferably, an exhaust hole is provided in the internal chamber where the spray needle is connected to the piston.

[0011] Preferably, the inner chamber at the connection between the spray needle and the piston forms a third chamber, and the third chamber is connected to the outside through the exhaust hole.

[0012] Preferably, the radial area of ​​the piston is larger than that of the spray needle.

[0013] Preferably, the release agent feed pipeline is provided with a pressure regulating device.

[0014] Preferably, the device for real-time mixing of resin and release agent is further provided with a mixing part fixedly connected to the injection part, wherein a second mixing chamber is provided in the mixing part, and the second mixing chamber is communicated with the outlet end of the internal chamber.

[0015] Preferably, a spiral baffle is provided in the second glue mixing chamber; the spiral baffle is placed in the second glue mixing chamber and forms a static mixing area with the second glue mixing chamber.

[0016] Preferably, a one-way valve is provided between the release agent feed port and the internal chamber.

[0017] A three-component resin injection device comprises the above-mentioned device for real-time mixing of resin and release agent.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) The utility model utilizes the hydraulic pressure of the second hydraulic device and the release agent feed pressure to achieve precise control of the release agent feed, thereby achieving convenient mixing of resins with different release agent contents.

[0020] (2) The separate design of the spray needle and the piston and the exhaust hole in the utility model help prevent the hydraulic oil from leaking into the first sealing chamber.

[0021] (3) In the utility model, the radial area of ​​the piston is larger than that of the spray needle, which helps to obtain a larger pressure on the spray needle under the smaller hydraulic pressure provided by the second hydraulic device, thereby reducing the risk of leakage of the internal release agent and improving the reliability and service life of the equipment.

[0022] (4) The utility model realizes efficient mixing of three-component resins in the injection state, realizes the reflux of two components of the three-component resins in the intermittent state, realizes stable switching between the intermittent and injection states, ensures stable pressure during the injection stage, and utilizes the movable push rod of the nozzle and the first mixing chamber design to remove residual mixed glue in the injection state, thereby avoiding clogging of the mixing nozzle by the solidified resin.

[0023] (5) The utility model mixes three-component resins in a mixing nozzle and uses them immediately without providing a storage space for the mixed resins; a two-component resin mixing area is provided at the injection outlet to reduce the length of the flow pipeline for the mixed resins, thereby improving the problem in the existing molding method that the injection pipeline and the mixing nozzle are easily clogged by the cured resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0025] Figure 1a This is a schematic diagram of a three-component resin mixing nozzle in a mixed injection state in one embodiment of the utility model;

[0026] Figure 1b This is a schematic diagram of the return state of the glue injection gap of a three-component resin mixing nozzle in one embodiment of the utility model;

[0027] Figure 2 A cross-sectional view of a stepless pressure regulating nozzle in one embodiment of the utility model;

[0028] Figure 3a This is a schematic diagram of the three-dimensional structure of a stepless pressure regulating nozzle in one embodiment of the utility model;

[0029] Figure 3b A cross-sectional view of a stepless pressure regulating nozzle in one embodiment of the utility model;

[0030] Figure 4 A three-dimensional view of a device for real-time mixing of resin and release agent;

[0031] Figure 5 A cross-sectional view of a device for real-time mixing of resin and release agent.

[0032] Reference numerals

[0033] Curing agent feed pipeline 01a, curing agent return pipeline 01b, resin feed pipeline 02a, resin return pipeline 02b, release agent feed pipeline 03;

[0034] Mixing nozzle 600, first stepless pressure regulating device 601a, second stepless pressure regulating device 601b, movable push rod 602, first hydraulic chamber 603a, second hydraulic chamber 603b, piston head 604, first groove 605a, second groove 605b, first glue mixing chamber 606;

[0035] Device 900, second glue mixing chamber 901, one-way valve 902, second hydraulic device 903, spray needle 903a, piston 903b, spiral baffle 904, mixing section 905, injection section 906, hydraulic oil inlet 907, exhaust hole 908, release agent feed port 910, resin feed port 911, internal chamber 912, first sealed chamber 912a, third chamber 912b, second sealed chamber 912c;

[0036] Nozzle 6001, nozzle 6011, needle valve body 6002, needle 6003, knob screw 6041, locking nut 6042, end cover 6043, first spring push rod 6044, second spring push rod 6045, third spring push rod 6046, butterfly spring 6047, first guide sleeve 6048, second guide sleeve 6049, third guide sleeve 6050, manual housing 6051, stepping motor 6061, electric housing 6062, directional screw 6063, guide hole 6064, coupling 6065, lead screw 6066, slider 6067, flow hole 6007, spring retaining ring 6008. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0038] On the one hand, the utility model discloses a device 900 for real-time mixing of resin and release agent, such as Figure 1a-Figure 5 As shown, the device 900 is provided with an injection portion 906;

[0039] A second hydraulic device 903 is disposed inside the internal chamber 912 of the injection portion 906, and the second hydraulic device 903 can slide relative to the internal chamber 912;

[0040] One end of the second hydraulic device 903 is selectively sealed and connected to the outlet end of the internal chamber 912, and the second hydraulic device 903 and the internal chamber 912 form a first sealed chamber 912a at the outlet end. The first sealed chamber 912a is provided with a release agent feed port 910, and the release agent feed port 910 is connected to the release agent feed pipeline 03.

[0041] During implementation, when the second hydraulic device 903 is subjected to a hydraulic pressure greater than the release agent feed pressure, the second hydraulic device 903 and the outlet end of the internal chamber 912 are sealed and closed, and the release agent stops flowing out through the outlet end; when the second hydraulic device 903 is subjected to a hydraulic pressure less than the release agent feed pressure, the outlet end of the internal chamber 912 is in an open state, and the release agent flows out through the outlet end.

[0042] Compared with the prior art, the hydraulic pressure of the second hydraulic device and the release agent feed pressure can be used to achieve precise control of the release agent feed and convenient mixing of resins with different release agent contents.

[0043] Preferably, the release agent feed pipeline 03 is provided with a pressure regulating device to facilitate the adjustment of the release agent feed pressure, thereby achieving the adjustment of the release agent feed rate and the release agent content in the resin system.

[0044] Specifically, the other end of the second hydraulic device 903 opposite to the outlet of the internal chamber 912 is provided with a second sealed chamber 912 c and a hydraulic oil inlet 907 , and the pressure-adjustable hydraulic oil enters the second sealed chamber 912 c through the hydraulic oil inlet 907 .

[0045] Preferably, the second hydraulic device 903 is provided with a spray needle 903 a and a piston 903 b connected in series, the spray needle 903 a and the piston 903 b are movably connected in series, and the spray needle 903 a and the piston 903 b can slide independently relative to the internal chamber 912 .

[0046] Preferably, an exhaust hole 908 is provided in the internal chamber 912 at the connection between the injection needle 903a and the piston 903b. The separate design of the injection needle 903a and the piston 903b and the exhaust hole 908 help prevent the hydraulic oil from leaking into the first sealed chamber 912a.

[0047] Specifically, the inner chamber 912 at the connection between the spray needle 903a and the piston 903b forms a third chamber 912b, and the third chamber 912b is connected to the outside through the exhaust hole 908, serving as a buffer zone after the hydraulic oil leaks out.

[0048] Preferably, the radial area of ​​the piston 903b is larger than that of the spray needle 903a, which helps the spray needle 903a to obtain a larger pressure under the smaller hydraulic pressure provided by the second hydraulic device 903, thereby reducing the risk of release agent leakage and improving equipment reliability and service life.

[0049] Preferably, the device 900 is further provided with a mixing portion 905 fixedly connected to the injection portion 906 , and a second glue mixing chamber 901 is provided in the mixing portion 905 , and the second glue mixing chamber 901 is communicated with the outlet end of the internal chamber 912 .

[0050] Specifically, the internal chamber 912 is provided with a resin feed port 911 at the inlet end, and a spiral baffle 904 is provided in the second mixing chamber 901; the spiral baffle 904 is placed in the second mixing chamber 901 and forms a static mixing area with the second mixing chamber 901 for mixing resin components and release agents.

[0051] During implementation, the resin component enters from the resin feed port 911 and is mixed with the release agent entering from the release agent feed port 910 in the static mixing area. After being mixed evenly, the mixed component flows out from the outlet end of the internal chamber 912 .

[0052] Preferably, a one-way valve 902 is provided between the release agent feed port 910 and the internal chamber 912 , and the two are connected via the one-way valve 902 to prevent backflow.

[0053] On the other hand, the utility model discloses a three-component resin mixing nozzle, such as Figure 1a-1b As shown, the mixing nozzle 600 includes: a movable push rod 602 and a first glue mixing chamber 606; the movable push rod 602 can slide freely in the first glue mixing chamber 606 along the inner wall of the first glue mixing chamber 606;

[0054] The movable push rod 602 is provided with a first groove 605a and a second groove 605b which are not connected to each other and extend along the sliding direction;

[0055] The three-component resin mixing nozzle is also provided with: a curing agent feeding pipeline 01a, a curing agent return pipeline 01b, a resin feeding pipeline 02a, a resin return pipeline 02b and a release agent feeding pipeline 03;

[0056] The curing agent feed pipeline 01a and the curing agent return pipeline 01b are located on the same side of the first glue mixing chamber 606, the resin feed pipeline 02a and the resin return pipeline 02b are located on the same side of the first glue mixing chamber 606, and the wall of the first glue mixing chamber 606 is provided with through holes in radial direction, which are connected with the curing agent feed pipeline 01a, the curing agent return pipeline 01b, the resin feed pipeline 02a, and the resin return pipeline 02b respectively;

[0057] The resin feed pipeline 02a is connected to the release agent feed pipeline 03;

[0058] When the movable push rod 602 slides along the inner wall of the first glue mixing chamber 606, the curing agent feed pipeline 01a and the curing agent return pipeline 01b can be connected through the first groove 605a, the resin feed pipeline 02a and the resin return pipeline 02b can be connected through the second groove 605b, and the curing agent feed pipeline 01a and the resin feed pipeline 02a can be connected to the first glue mixing chamber 606.

[0059] It can be understood that when the movable push rod 602 slides along the inner wall of the first glue mixing chamber 606, the first groove 605a and the second groove 605b slide accordingly and change their positions along the first glue mixing chamber 606. When the first groove 605a is connected to the curing agent feed pipeline 01a and the curing agent return pipeline 01b at the same time, the first groove 605a and the wall surface of the first glue mixing chamber 606 form a connecting channel for the curing agent feed pipeline 01a and the curing agent return pipeline 01b, and the connecting channel can be used as a channel for recovering the curing agent from the curing agent feed pipeline 01a to the curing agent return pipeline 01b; similarly, the second groove 605b and the wall surface of the first glue mixing chamber 606 form a connecting channel for the resin feed pipeline 02a and the resin return pipeline 02b, and the connecting channel can be used as a channel for recovering the resin from the resin feed pipeline 02a to the resin return pipeline 02b.

[0060] During implementation, the end position of the movable push rod 602 is adjusted to be located above the through hole connected to the curing agent feeding pipeline 01a and the through hole connected to the resin feeding pipeline 02a, so that the curing agent feeding pipeline 01a and the resin feeding pipeline 02a are connected to the first mixing chamber 606, and at the same time, the resin feeding pipeline 02a is connected to the release agent feeding pipeline 03, so that the release agent and the resin component are mixed with the resin in the first mixing chamber 606 to prepare a three-component resin, and under the action of the push rod, the resin enters the molding mold through the outlet at the lower end of the first mixing chamber 606 to realize the molding operation; When material return is required, the movable push rod 602 is adjusted to slide along the inner wall of the first mixing chamber 606, so that the first groove 605a is connected to the curing agent feed pipeline 01a and the curing agent return pipeline 01b at the same time. After the curing agent feed enters the first groove 605a, the material return is realized through the curing agent return pipeline 01b connected to the first groove 605a. At the same time, the second groove 605b is connected to the resin feed pipeline 02a and the resin return pipeline 02b at the same time. After the resin enters the second groove 605b, the material return is realized through the resin return pipeline 02b connected to the second groove 605b.

[0061] Compared with the prior art, the utility model realizes that the resin can be prepared and used immediately without storage by providing a movable push rod and a first groove and a second groove on the movable push rod corresponding to the curing agent feed pipeline, the curing agent return pipeline, the resin feed pipeline and the resin return pipeline. At the same time, it realizes that the glue can be mixed and discharged quickly under stable pressure and flow conditions without closing the glue raw material feed, which helps to improve the molding stability and quality of the protective layer. The utility model does not need to close the feeding device when switching between glue injection and glue injection intermittent standby state, which helps to achieve continuous production.

[0062] At the same time, after the movable push rod 602 completes the mixing and stops feeding from the feeding pipeline, it slides toward the glue outlet and can clean the residual glue in the first glue mixing chamber 606 at the same time.

[0063] Compared with the prior art, the utility model can easily remove the residual mixed glue liquid and avoid the clogging of the mixing nozzle by the solidified resin.

[0064] The utility model designs a glue injection nozzle which can flexibly control the mixed injection of each component / the reflux of each component without shutting down the feeding power, which helps to ensure the stability of the injection amount and mixing uniformity in an intermittent single injection with a short injection time, can adapt to the intermittent injection and curing rules in the mold, and improves the defects of easy clogging of the mixing nozzle due to intermittent injection and difficulty in controlling the injection amount during short-time injection.

[0065] In order to improve the problem in existing glue mixing and molding methods that the glue injection pipeline and the mixing nozzle are easily blocked by the cured resin, the utility model optimizes the structural design of the mixing nozzle: on the one hand, the two-component resins are mixed and used immediately in the mixing nozzle, and no storage space for the mixed resin is provided; on the other hand, the two-component resin mixing area is provided at the glue injection outlet to reduce the length of the flow pipeline of the mixed resin.

[0066] In order to reduce the pressure and flow changes caused by the start and stop of the resin mixing switch, ensure the stability of the resin ratio, obtain continuous and stable protective layer quality, and adapt to continuous production, the utility model is designed with a reflux structure in the mixing nozzle to allow the two components that are not involved in the mixing to reflux separately.

[0067] Specifically, the movable push rod 602 is relatively deep in the first mixing chamber 606 and is connected to one side thereof with a piston cylinder head 604; the three-component resin mixing nozzle is provided with a hydraulic chamber for providing power for the movable push rod 602; the piston cylinder head 604 penetrates into the hydraulic chamber to divide the hydraulic chamber into a first hydraulic chamber 603a and a second hydraulic chamber 603b which are not connected to each other.

[0068] During implementation, the piston column head 604 and the movable push rod 602 slide by adjusting the pressure difference between the first hydraulic chamber 603a and the second hydraulic chamber 603b.

[0069] Preferably, in order to achieve stable feeding of curing agent and resin, the three-component resin mixing nozzle is provided with a stepless pressure regulating nozzle, and the curing agent feeding pipeline 01a and the resin feeding pipeline 02a are connected to the first mixing chamber 606 through the stepless pressure regulating nozzle.

[0070] Specifically, Figure 1a , Figure 1b As shown, the curing agent feed pipeline 01a is connected to the first glue mixing chamber 606 through the first stepless pressure regulating device 601a, and the resin feed pipeline 02a is connected to the first glue mixing chamber 606 through the second stepless pressure regulating device 601b.

[0071] Specifically, Figure 2-Figure 3bAs shown, the stepless pressure regulating nozzle includes, from bottom to top, a nozzle 6001, a spray needle valve body 6002 and a pressure setting device connected in sequence, the nozzle 6001 is provided with a spray port 6011, the spray needle valve body 6002 is provided with a spray needle 6003 capable of moving up and down, the upper end of the spray needle 6003 is connected to the pressure setting device, and the spray needle 6003 is adjusted to move up and down by the pressure setting device to stay away from or block the spray port 6011.

[0072] During implementation, the stepless pressure regulating nozzle is fixed on the mixing cylinder by screws, and the position of the flow hole 6007 on the needle valve body 6002 is set corresponding to the position where the resin or curing agent flows in, so as to ensure that the resin or curing agent can enter the interior of the needle valve body 6002 through the flow hole 6007 on the needle valve body 6002. When the pressure of the resin or curing agent is lower than the set pressure, the needle tip of the needle 6003 blocks the nozzle 6011 on the nozzle 6001 under the action of the pressure setting device, and the resin or curing agent cannot be sprayed out. When the pressure of the resin or curing agent is higher than the set pressure, the needle 6003 moves upward, and the needle tip contacts the nozzle 6011 on the nozzle 6001, and the resin or curing agent is sprayed out from the nozzle 6011 on the nozzle 6001 at a stable pressure. During use, the spray pressure of the nozzle can be quickly adjusted by the pressure setting device, so that the resin or curing agent is sprayed out at a precise pressure.

[0073] In a specific embodiment, the pressure setting device includes a manual pressure setting device or an electric pressure setting device.

[0074] In a specific embodiment, the manual pressure setting device includes a knob screw 6041, a locking nut 6042 and a manual housing 6051 connected in sequence from top to bottom, the knob screw 6041 and the locking nut 6042 are arranged relatively to each other, and the knob screw 6041 is movably connected to the manual housing 6051 through an end cover 6043.

[0075] In a specific embodiment, a spring push rod is provided in the manual housing 6051 , the upper end of the spring push rod is connected to the lower end of the knob screw 6041 , the lower end of the spring push rod is connected to a guide sleeve, and the guide sleeve is connected to the spray needle 6003 .

[0076] In a specific embodiment, the spring push rod includes, from top to bottom, a first spring push rod 6044, a second spring push rod 6045 and a third spring push rod 6046 which are connected in sequence and whose diameters decrease in sequence, and the guide sleeve includes, from top to bottom, a first guide sleeve 6048, a second guide sleeve 6049 and a third guide sleeve 6050 which are connected in sequence, the first guide sleeve 6048 and the third guide sleeve 6049 have the same diameter and are smaller than the diameter of the second guide sleeve 6047, the first guide sleeve 6048 and the third guide sleeve 6050 have the same diameter, the third spring push rod 6046 is slidably connected to the first guide sleeve 6048, and a butterfly spring 6047 is arranged between the first spring push rod 6044 and the second guide sleeve 6049.

[0077] It should be noted that the principle of adjusting the pressure using a manual pressure setting device is as follows:

[0078] According to the rotation angle of the knob screw 6041 and its downward movement distance and the spring coefficient of the butterfly spring 6047, the relationship between the rotation angle of the knob screw 6041 and the pressure is calculated, and the pressure value scale is marked on the knob screw 6041 to facilitate quick pressure setting.

[0079] When the spray pressure of the nozzle is increased: first rotate the locking nut 6042 counterclockwise to loosen the knob screw 6041, then rotate the knob screw 6041 clockwise to a pressure value, the knob screw 6041 rotates downward, thereby pushing the spring push rod to move downward the same distance, the spring push rod and the guide sleeve squeeze the butterfly spring 6047 in the middle, the butterfly spring 6047 produces a greater elastic deformation, according to the characteristics of elastic deformation, the force of the guide sleeve on the spray needle 6003 increases, so that the pressure required for the resin or curing agent to move the spray needle 6003 upward will increase to the set pressure, and then rotate the locking nut 6042 clockwise to lock the knob screw 6041.

[0080] When reducing the spray head spray pressure: first rotate the locking nut 6042 counterclockwise to loosen the knob screw 6041, then rotate the knob screw 6041 counterclockwise to a pressure value, and the knob screw 6041 rotates upward, so that the spring push rod moves the same distance under the action of the butterfly spring 6047, and the spring push rod and the guide sleeve reduce the squeezing of the middle butterfly spring 6047, and the elastic deformation of the butterfly spring 6047 is reduced. According to the characteristics of elastic deformation, the force of the guide sleeve on the spray needle 6003 is reduced, so that the pressure required for the resin or curing agent to move the spray needle 6003 upward will be reduced to the set pressure. Then rotate the locking nut 6042 clockwise to lock the knob screw 6041, and complete the pressure setting.

[0081] In a specific embodiment, the electric pressure setting device includes a stepper motor 6061 and an electric housing 6062, the lower end of the stepper motor 6061 is connected to the upper end of the electric housing 6062, the stepper motor 6061 is also electrically connected to a controller, the interior of the electric housing 6062 includes a coupling 6065, a lead screw 6066 and a guide sleeve connected in sequence from top to bottom, the coupling 6065 is fixedly connected to the stepper motor 6061, a slider 6067 is slidably connected to the electric housing 6062, and a plurality of directional screws 6063 are fixedly connected to the slider 6067.

[0082] Specifically, the upper end of the lead screw 6066 is fixedly connected to the coupling 6065, the lower end of the lead screw 6066 is slidably connected to the guide sleeve, the coupling 6065 is fixedly mounted on the stepper motor 6061, the stepper motor 6061 is fixedly connected to the electric housing 6062 by screws, and the stepper motor 6061 is connected to the controller through a signal line.

[0083] In a specific embodiment, a plurality of guide holes 6064 are provided on the electric housing 6062 corresponding to the directional screw 6063 , and one end of the directional screw 6063 away from the slider 6067 is located in the guide hole 6064 , and the directional screw 6063 slides up and down in the guide hole 6064 through the slider 6067 .

[0084] In a preferred embodiment, the nut on the directional screw 6063 is located in the guide hole 6064. The function of the directional screw 6063 is to prevent the slider 6067 from rotating as the lead screw 6066 rotates. The nut on the directional screw 6063 is located in the guide hole 6064 so that when the lead screw 6066 rotates, the slider 6067 can only slide up and down. The slider 6067 is connected to the lead screw 6066 through threads.

[0085] In a specific embodiment, a butterfly spring 6047 is provided between the upper end of the guide sleeve and the slider 6067 , and the lower end of the guide sleeve is connected to the spray needle 6003 .

[0086] Specifically, the slider 6067 is slidably connected to the electric housing 6062, the guide sleeve is slidably connected to the electric housing 6062, the lower end of the guide sleeve contacts the spray needle 6003, and when the guide sleeve moves downward, the guide sleeve contacts the upper end of the spray needle 6003, causing the spray needle 6003 to move downward.

[0087] In a specific embodiment, the lower end of the lead screw 6066 is slidably connected to the guide sleeve.

[0088] In a specific embodiment, the nozzle 6001 is positioned with the needle valve body 6002 via a spring retaining ring 6008 .

[0089] It should be noted that the principle of adjusting the pressure using an electric pressure setting device is as follows:

[0090] The stepper motor 6061 rotates a certain angle, so the lead screw 6066 also rotates a certain angle, and the slider 6067 moves up and down under the action of the lead screw 6066. According to the moving distance and the spring coefficient of the butterfly spring 6047, the relationship between the rotation angle of the stepper motor 6061 and the pressure can be calculated. After writing the corresponding calculation program on the controller, the corresponding pressure can be automatically set by directly inputting the pressure value.

[0091] When the spray pressure of the nozzle is increased: the controller controls the stepper motor 6061 to rotate clockwise by a certain angle, and the slider 6067 moves downward under the action of the screw 6066. The slider 6067 and the guide sleeve squeeze the butterfly spring 6047 in the middle, and the butterfly spring 6047 produces a larger elastic deformation. According to the characteristics of elastic deformation, the force of the guide sleeve on the spray needle 6003 increases, so that the pressure required for the resin or curing agent to move the spray needle 6003 upward will increase to the set pressure.

[0092] When the spray pressure of the nozzle is reduced: the controller controls the stepper motor 6061 to rotate counterclockwise by a certain angle, and the slider 6067 moves upward under the action of the screw 6066. The slider 6067 and the guide sleeve reduce the extrusion of the butterfly spring 6047. According to the characteristics of elastic deformation, the force of the guide sleeve on the spray needle 6003 is reduced, so that the pressure required for the resin or curing agent to move the spray needle 6003 upward will be reduced to the set pressure, thereby completing the pressure setting.

[0093] It should be noted that the nozzle 6001, the needle valve body 6002 and the needle 6003 described in the present invention are all provided with sealing rings to play a sealing role, and the guide sleeve is a hollow structure inside.

[0094] In a third aspect, the utility model discloses a three-component resin injection device, such as Figure 1a-1b As shown, it includes the above-mentioned mixing nozzle 600 and device 900;

[0095] The release agent feed pipeline 03 is connected to the resin feed pipeline 02a through the device 900, and the discharge port of the device 900 is connected to the feed port of the second stepless pressure regulating device 601b.

[0096] During implementation, after the release agent and the resin are uniformly mixed in the device 900 , they enter the first glue mixing chamber 606 through the second stepless pressure regulating device 601 b and are uniformly mixed with the curing agent component.

[0097] The above is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A device for real-time mixing of resin and release agent, characterized in that: The device is provided with an injection portion; A second hydraulic device is provided inside the internal chamber of the injection part, and the second hydraulic device can slide relative to the internal chamber; One end of the second hydraulic device is selectively sealed and connected to the outlet end of the internal chamber, and the second hydraulic device and the internal chamber form a first sealed chamber at the outlet end. The first sealed chamber is provided with a release agent feed port, which is connected to the release agent feed pipeline.

2. The device for real-time mixing of resin and release agent according to claim 1, characterized in that: The second hydraulic device is provided with a spray needle and a piston connected in series, the spray needle and the piston are movably connected in series, and the spray needle and the piston can slide independently relative to the internal chamber.

3. The device for real-time mixing of resin and release agent according to claim 2, characterized in that: An exhaust hole is arranged in the inner chamber where the spray needle and the piston are connected.

4. The device for real-time mixing of resin and release agent according to claim 3, characterized in that: The inner chamber at the connection between the spray needle and the piston forms a third chamber, and the third chamber is communicated with the outside through the exhaust hole.

5. The device for real-time mixing of resin and release agent according to claim 4, characterized in that: The radial area of ​​the piston is greater than the radial area of ​​the spray needle.

6. The device for real-time mixing of resin and release agent according to claim 5, characterized in that: The release agent feeding pipeline is provided with a pressure regulating device.

7. The device for real-time mixing of resin and release agent according to claim 6, characterized in that: The device for real-time mixing of resin and release agent is also provided with a mixing part fixedly connected to the injection part; A second glue mixing chamber is arranged in the mixing part, and the second glue mixing chamber is communicated with the outlet end of the internal chamber.

8. The device for real-time mixing of resin and release agent according to claim 7, characterized in that: A spiral baffle is provided in the second glue mixing chamber; the spiral baffle is placed in the second glue mixing chamber and forms a static mixing area with the second glue mixing chamber.

9. The device for real-time mixing of resin and release agent according to claim 8, characterized in that: A one-way valve is provided between the release agent feed port and the internal chamber.

10. A three-component resin injection device, characterized in that: include: The device for real-time mixing of resin and release agent according to any one of claims 1 to 9.

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