Stirring device capable of quickly blending and used for blending photo-sensitive resist

Abstract

The invention provides a stirring device capable of achieving rapid blending for photosensitive resist blending, and relates to the field of photosensitive resist blending, the stirring device comprises a double-layer vacuum stirring kettle body, an annular supporting foot stool, a supporting reinforcing ring and a discharging base, the discharging base is fixed to the bottom of the double-layer vacuum stirring kettle body, and the annular supporting foot stool is fixed to the discharging base; the plurality of annular supporting foot stools are fixedly connected with the outer end face of the discharging base, and a reaction chamber with an upward opening is formed in the double-layer vacuum stirring kettle body. The three layers of special paddles are driven by the planetary gear transmission system to form composite motion of rotation and revolution, a three-dimensional spiral flow field of forced convection in the vertical direction, radial circulation and axial backmixing is constructed, the traditional blending time is further shortened, the infrared temperature sensor and the variable frequency driving system are integrated, temperature control is accurate, and the efficiency is high. And in cooperation with the heat insulation characteristic of the double-layer vacuum kettle body, colloid degradation caused by local overheating is effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of photosensitive adhesive preparation, in particular to a stirring device for photosensitive adhesive preparation which can be quickly prepared. Background Art

[0002] Conventional stirring devices (such as the single stirring structure described in CN222969636U) achieve mixing solely through rotating paddles, which struggles to overcome fluid dynamics limitations. For high-viscosity photosensitive adhesives (viscosity >5000 cP), traditional equipment can take 40 to 60 minutes to achieve the required mixing uniformity, and there's a risk of sedimentation in localized dead zones.

[0003] The following problems exist in the traditional preparation of photosensitive adhesives. Not only does it rely on manual weighing, with an error rate of ±2%, which affects the performance of the photosensitive adhesive, but conventional stirring devices take 40 to 60 minutes to achieve uniformity requirements, and there is a risk of precipitation. In addition, open feeding is prone to introducing dust, and cleaning relies on manual labor, which poses a risk of cross-contamination. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a stirring device for preparing photosensitive adhesive that can be quickly prepared, thereby solving the problems raised in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stirring device for mixing photosensitive adhesive that can be quickly mixed, comprising a double-layer vacuum stirring kettle body, an annular support leg, a support reinforcement ring and a discharge base, the discharge base is fixed to the bottom of the double-layer vacuum stirring kettle body, several of the annular support legs are fixedly connected to the outer end surface of the discharge base, a reaction chamber with an upward opening is provided in the double-layer vacuum stirring kettle body, the bottom of the reaction chamber is connected to the discharge base, several annular arrays of support reinforcement rings are provided in the middle of the outer end surface of the double-layer vacuum stirring kettle body, the support reinforcement rings are fixedly connected to the outer end surface of the double-layer vacuum stirring kettle body, and the support reinforcement rings are fixedly connected to the outer end surface of the double-layer vacuum stirring kettle body. The ring can play a supporting role. A planetary transmission gear box is installed above the reaction chamber. A number of flange connectors distributed in a ring array are fixedly provided at the bottom of the outer end surface of the planetary transmission gear box. The flange connector is fixedly connected to the top of the double-layer vacuum stirring kettle body. Three movable stirring shafts are provided at the bottom of the planetary transmission gear box. The stirring shafts can rotate. A blade connecting seat is fixedly installed at the bottom of the stirring shaft. The outer end surfaces of the three blade connecting seats are respectively installed with a cutting blade group, a propulsion mixing blade and a propeller. The cutting blade group, the propulsion mixing blade and the propeller are arranged from top to bottom.

[0008] Preferably, a gear chamber is provided in the planetary transmission gearbox, a main transmission shaft is rotatably provided at the top center position of the gear chamber, and a sun gear is fixedly connected to the outer end surface of the main transmission shaft.

[0009] Preferably, a variable frequency drive motor is installed above the planetary transmission gear box, and the variable frequency drive motor is dynamically connected to the main transmission shaft.

[0010] Preferably, three triple planetary gear sets are rotatably provided in the gear chamber, and tooth grooves are provided on the inner wall of the gear chamber. The triple planetary gear sets are respectively engaged with the tooth grooves and the sun gear, and the triple planetary gear sets are installed and connected to the blade connecting seat.

[0011] Preferably, an annular flow guide baffle is provided on the inner arc surface above the reaction chamber, and a plurality of annularly distributed mounting brackets are installed on the top of the annular flow guide baffle. An arc-shaped mounting plate that can be lifted and moved is installed in the mounting bracket, and the arc-shaped mounting plate is arc-shaped.

[0012] Preferably, an LED red light illumination module is installed on the inner arc surface of the arc-shaped mounting plate, and an infrared temperature sensor is installed on one side of the top end of the planetary transmission gear box, with the detection head of the infrared temperature sensor facing the reaction chamber.

[0013] Preferably, a quality monitor is fixedly provided at the bottom of the double-layer vacuum stirring kettle.

[0014] Preferably, a detachable closing cover can be installed on the top of the double-layer vacuum stirring kettle body, and the closing cover is divided into two pieces and is spliced to close the opening above the reaction chamber.

[0015] (3) Beneficial effects

[0016] The present invention provides a stirring device for preparing photosensitive adhesive that can be quickly prepared. It has the following beneficial effects:

[0017] 1. The present invention drives three layers of special blades through a planetary gear transmission system to form a composite motion of rotation and revolution, constructing a three-dimensional spiral flow field of vertical forced convection, radial circulation and axial back mixing, further shortening the traditional deployment time.

[0018] 2. The present invention integrates an infrared temperature sensor and a variable frequency drive system to achieve precise temperature control, and combined with the thermal insulation properties of the double-layer vacuum kettle, effectively prevents colloid degradation caused by local overheating.

[0019] 3. The present invention adopts the cooperation of LED red light illumination system, which can provide clear observation through double-layer vacuum glass while preventing ultraviolet light from inducing pre-curing of photosensitive adhesive. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is the main view of the appearance structure of the present invention;

[0022] Figure 3 This is a front view of the appearance structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Cross-sectional view in the AA direction;

[0024] Figure 5 A top view of the appearance structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 Cross-sectional view of the middle BB;

[0026] Figure 7 It is a schematic diagram of the working state of the present invention.

[0027] In the figure: 101, double-layer vacuum stirring kettle body; 102, annular support leg; 103, infrared temperature sensor; 104, variable frequency drive motor; 105, planetary transmission gearbox; 106, LED red light lighting module; 107, arc-shaped mounting plate; 108, mounting bracket; 109, reaction chamber; 110, support reinforcement ring; 111, flange connection; 112, annular guide baffle; 114, main transmission shaft; 115, quality monitor; 116, discharge base; 117, gear chamber; 118, triple planetary gear set; 119, sun gear; 120, stirring shaft; 121, blade connecting seat; 122, propeller; 123, propulsion mixing paddle; 124, cutting paddle group; 125, sealing cover plate. DETAILED DESCRIPTION

[0028] The embodiment of the present invention provides a stirring device for preparing photosensitive adhesive that can be quickly prepared, such as Figure 1-7As shown, it includes a double-layer vacuum stirring kettle body 101, an annular support leg 102, a support reinforcement ring 110 and a discharge base 116. The discharge base 116 is fixed to the bottom of the double-layer vacuum stirring kettle body 101, and several annular support legs 102 are fixedly connected to the outer end surface of the discharge base 116. A reaction chamber 109 with an upward opening is provided in the double-layer vacuum stirring kettle body 101. The bottom of the reaction chamber 109 is connected to the discharge base 116. A plurality of annular support reinforcement rings 110 are provided in the middle position of the outer end surface of the double-layer vacuum stirring kettle body 101. The support reinforcement ring 110 can play a supporting role. The reaction chamber 109 is installed above There is a planetary transmission gear box 105, and a number of flange connectors 111 distributed in a ring array are fixedly provided at the bottom of the outer end surface of the planetary transmission gear box 105. The flange connector 111 is fixedly connected to the top of the double-layer vacuum stirring kettle body 101. Three movable stirring shafts 120 are provided at the bottom of the planetary transmission gear box 105. The stirring shaft 120 can rotate, and a blade connecting seat 121 is fixedly installed at the bottom of the stirring shaft 120. The outer end surfaces of the three blade connecting seats 121 are respectively installed with a cutting blade group 124, a propulsion mixing blade 123 and a propeller 122. The cutting blade group 124, the propulsion mixing blade 123 and the propeller 122 are arranged from top to bottom.

[0029] It should be further explained that the cutting paddle group 124 is a plurality of paddles inclined at 45 degrees, the propulsion mixing paddle 123 is a propulsion blade, and the cutting paddle group 124 is spiral.

[0030] It is worth further explaining that the double-layer vacuum stirring kettle body 101 is made of double-layer vacuum glass material, which is convenient for staff to observe in real time. A control switch valve is provided in the discharge base 116 to control the on-off state of the discharge base 116.

[0031] Furthermore, a gear chamber 117 is provided in the planetary transmission gearbox 105 , and a main transmission shaft 114 is rotatably provided at the top center position of the gear chamber 117 , and a sun gear 119 is fixedly connected to the outer end surface of the main transmission shaft 114 .

[0032] Furthermore, a variable frequency drive motor 104 is installed above the planetary transmission gear box 105 , and the variable frequency drive motor 104 is power-connected to the main transmission shaft 114 .

[0033] It is worth further explaining that when the variable frequency drive motor 104 is started, it can drive the main transmission shaft 114 to rotate through the power connection, and then drive the sun gear 119 to rotate.

[0034] Furthermore, three triple planetary gear sets 118 are rotatably provided in the gear chamber 117 , and tooth grooves are provided on the inner wall of the gear chamber 117 . The triple planetary gear sets 118 are respectively engaged with the tooth grooves and the sun gear 119 , and the triple planetary gear sets 118 are installed and connected to the blade connecting seat 121 .

[0035] It is worth further explaining that when the variable frequency drive motor 104 starts to drive the main transmission shaft 114 to rotate, the triple planetary gear set 118 is driven to rotate through gear meshing. At this time, the triple planetary gear set 118 is guided to move by meshing with the tooth grooves on the inner wall of the gear chamber 117. During the guided movement, the triple planetary gear set 118 rotates and revolves around the sun gear 119. At this time, as the triple planetary gear set 118 rotates, the blade connecting seat 121 is driven to rotate.

[0036] It should be further explained that as the blade connecting seat 121 rotates, the cutting blade group 124, the propulsion mixing blade 123 and the propeller 122 are driven to rotate. At this time, the rotation of the cutting blade group 124 at the top first applies a tangential thrust to the photosensitive resin material on the top layer of the inner cavity of the reaction chamber 109 through the inclined paddle plate structure. Since the paddle plate is arranged at a 45° angle, its rotational motion will produce a dual fluid dynamic effect. On the one hand, the inclined impact of the paddle plate facing the liquid surface forms an axial downward forced convection, forcing the surface liquid to vertically penetrate the entire liquid column. On the other hand, the negative pressure suction effect of the liquid surface behind the paddle plate forms a local low-pressure area above the paddle plate, inducing the surrounding liquid to converge radially toward the center of rotation.

[0037] It should be further explained that the propulsion mixing paddle 123 located in the middle layer continues to work to convert the axial flow into a fully mixed flow state. When the propulsion mixing paddle 123 rotates at high speed, the kinetic energy generated by the propulsion mixing paddle 123 blades doing work on the liquid not only drives the liquid downward in the axial direction, but also forms a pressure gradient difference in the radial direction through the gap effect between the blade end and the inner wall of the double-layer vacuum stirring kettle body 101. This differential pressure prompts the liquid to generate a circumferential circulation while moving downward, and forms a three-dimensional spiral flow field with the radial convergence created by the cutting paddle group 124, so that the raw material components of different densities can achieve shear mixing at the micro level in the spiral trajectory.

[0038] It should be further explained that the intervention of the spiral blades of the bottom propeller 122 completes the closed-loop control of the mixing process. Its spiral ribbon structure produces a dual effect when rotating. The outer spiral line continuously updates the stagnation layer near the inner wall of the discharge base 116 through mechanical scraping to prevent the photosensitive adhesive components from depositing on the wall of the device. The inner spiral lifts the bottom material upward through the spiral principle, forming a counter-mixing with the material flow falling from the upper layer.

[0039] Furthermore, an annular flow guide baffle 112 is provided on the inner arc surface above the reaction chamber 109, and a plurality of annularly distributed mounting brackets 108 are installed on the top of the annular flow guide baffle 112. An arc-shaped mounting plate 107 that can be lifted and moved is installed in the mounting bracket 108, and the arc-shaped mounting plate 107 is arc-shaped.

[0040] Furthermore, an LED red light illumination module 106 is installed on the inner arc surface of the arc-shaped mounting plate 107 , and an infrared temperature sensor 103 is installed on one side of the top of the planetary transmission gearbox 105 , with the detection head of the infrared temperature sensor 103 facing the reaction chamber 109 .

[0041] It should be further explained that the LED red light illumination module 106 is an LED red light illumination lamp to prevent ultraviolet light from inducing curing of the photosensitive adhesive, and the infrared temperature sensor 103 monitors the temperature inside the reaction chamber 109 .

[0042] Furthermore, a quality monitor 115 is fixedly provided at the bottom of the double-layer vacuum stirring kettle 101 .

[0043] It should be further explained that the quality monitor 115 is used to monitor the quality of the photosensitive resin in the reaction chamber 109 .

[0044] like Figure 7 As shown, a detachable closing cover 125 can be installed on the top of the double-layer vacuum stirring tank body 101. The closing cover 125 is divided into two pieces and is spliced to close the opening above the reaction chamber 109.

[0045] Here’s how to use this solution:

[0046] S1. The operator first ensures that the equipment is clean and dry, checks the airtightness of the double-layer vacuum stirring vessel 101 and the pipeline, and removes the two removable sealing covers 125 to expose the opening above the reaction chamber 109;

[0047] S2. The raw materials of the various components of the photosensitive adhesive to be prepared (such as resin, photoinitiator, solvent, additives, etc.) are added into the reaction chamber 109 through the opening according to the process requirements. Then, the two spliced closed cover plates 125 are reinstalled in place to tightly seal the opening above the reaction chamber 109. Since the double-layer vacuum stirring vessel body 101 is made of double-layer vacuum glass material, the operator can still observe the initial state of the raw materials in the vessel and the subsequent mixing process in real time through the vessel wall when the cover plates are closed;

[0048] S3. Turn on the LED red light module 106. The red light of a specific wavelength emitted by the LED red light module penetrates the double-layer vacuum glass, providing the operator with sufficient lighting for real-time observation. At the same time, it strictly avoids the problem of pre-curing of the photosensitive adhesive caused by ultraviolet light exposure, ensuring a safe and reliable mixing process.

[0049] S4. Activate the infrared temperature sensor 103. Its probe continuously monitors the real-time temperature distribution of the material in the reaction chamber 109 through the closed environment, providing key parameters for process control and preventing local overheating that may lead to degradation of colloid properties or excessive solvent volatilization. Activate the quality monitor 115.

[0050] S5. Start the variable frequency drive motor 10. The motor outputs power to rotate the main transmission shaft 114 and the sun gear 119. The rotation of the sun gear 119 then drives the three triple planetary gear sets 118 to perform compound motion through gear meshing. Each triple planetary gear set 118 rotates about its own axis. At the same time, the triple planetary gear sets 118 mesh with the tooth grooves fixed to the inner wall of the gear chamber 117. Driven by the sun gear 119, the triple planetary gear sets 118 perform planetary orbital motion along the tooth grooves.

[0051] S5.1. The combined motion of the triple planetary gear set 118 is transmitted to the paddle connector 121 at the bottom via the agitator shaft 120, thereby driving the cutting paddle assembly 124, the propeller mixing paddle 123, and the propeller 122 mounted thereon to perform a complex motion of both self-rotation and revolution. This wide-ranging, combined motion trajectory greatly expands the mixing coverage area and effectively eliminates dead zones. The three layers of proprietary paddles, combined with the revolution and self-rotation, work together to form an efficient, progressive, three-dimensional mixing flow field.

[0052] S5.2. The top cutting paddle assembly 124 rotates, first applying a tangential thrust to the photosensitive resin material at the top layer of the reaction chamber 109 through the inclined paddle structure. Because the paddles are tilted at 45 degrees, their rotational motion produces a dual fluid dynamic effect. On the one hand, the inclined impact of the paddles on the liquid surface creates axially downward forced convection, forcing the surface liquid to vertically penetrate the entire liquid column. On the other hand, the negative pressure suction effect of the paddles on the liquid surface behind the paddles creates a local low-pressure area above the paddles, inducing the surrounding liquid to converge radially toward the center of rotation.

[0053] S5.3. The propeller blades of the middle-layer propeller 123 continue to operate, converting the axial flow into a fully mixed flow state. When the propeller 123 rotates at high speed, the kinetic energy generated by the blades of the propeller 123 on the liquid not only drives the liquid downward in the axial direction, but also forms a pressure gradient difference in the radial direction through the gap effect between the blade tip and the inner wall of the double-layer vacuum stirring vessel 101. This differential pressure causes the liquid to generate a circumferential circulation while moving downward. This, combined with the radial confluence created by the cutting paddle group 124, forms a three-dimensional spiral flow field, allowing raw material components of different densities to achieve microscopic shear mixing in the spiral trajectory.

[0054] S5.4. The helical blades of the bottom propeller 122 provide closed-loop control of the mixing process. Its ribbon-like structure creates a dual effect during rotation. The outer spiral line continuously updates the stagnant layer near the inner wall of the discharge base 116 through mechanical scraping, preventing the deposition of photosensitive adhesive components on the vessel wall. The inner spiral, through the spiral principle, lifts the bottom material upward, creating a counter-mixing effect with the falling material flow from the upper layer.

[0055] S6. During the entire stirring process, the operator can visually observe the material mixing state through the transparent double-layer vacuum glass kettle under safe red light illumination. At this time, the operator pays real-time attention to the temperature data fed back by the infrared temperature sensor 103. If necessary, the stirring intensity can be controlled by adjusting the speed of the variable frequency drive motor 104 to manage the temperature rise.

[0056] S7. After uniform mixing, stop the variable frequency drive motor 104; the staff dismantle 125 and take samples or visually confirm that the quality of the photosensitive adhesive is qualified. Then, open the valve on the discharge base 116, and the prepared photosensitive adhesive is discharged under the action of gravity and any residual pressure.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for rapidly preparing photosensitive adhesive, comprising a double-layer vacuum stirring kettle (101), an annular support frame (102), a support reinforcement ring (110) and a discharge base (116), characterized in that: The discharge base (116) is fixed to the bottom of the double-layer vacuum stirring kettle body (101), and several annular support legs (102) are fixedly connected to the outer end surface of the discharge base (116). A reaction chamber (109) with an upward opening is provided in the double-layer vacuum stirring kettle body (101), and the bottom of the reaction chamber (109) is communicated with the discharge base (116). A plurality of annular array support reinforcement rings (110) are provided in the middle position of the outer end surface of the double-layer vacuum stirring kettle body (101). A planetary transmission gear box (105) is installed above the reaction chamber (109), and several planetary transmission gear boxes (105) are fixedly provided at the bottom of the outer end surface. The invention relates to a plurality of flange connectors (111) distributed in an annular array, wherein the flange connectors (111) are fixedly connected to the top of the double-layer vacuum stirring kettle body (101), and the bottom of the planetary transmission gear box (105) is provided with three stirring shafts (120), wherein the stirring shafts (120) are rotatable, and the bottom of the stirring shafts (120) is fixedly installed with a blade connecting seat (121), and the outer end surfaces of the three blade connecting seats (121) are respectively installed with a cutting blade group (124), a propulsion mixing blade (123) and a propeller (122), wherein the cutting blade group (124), the propulsion mixing blade (123) and the propeller (122) are arranged and distributed from top to bottom.

2. The stirring device for rapidly preparing photosensitive adhesive according to claim 1, characterized in that: A gear chamber (117) is provided in the planetary transmission gearbox (105), a main transmission shaft (114) is rotatably provided at the top center position of the gear chamber (117), and a sun gear (119) is fixedly connected to the outer end surface of the main transmission shaft (114).

3. The stirring device for rapidly preparing photosensitive adhesive according to claim 2, characterized in that: A variable frequency drive motor (104) is installed above the planetary transmission gear box (105), and the variable frequency drive motor (104) is power-connected to the main transmission shaft (114).

4. The stirring device for rapidly preparing photosensitive adhesive according to claim 3, characterized in that: Three triple planetary gear sets (118) are rotatably provided in the gear chamber (117), and tooth grooves are provided on the inner wall of the gear chamber (117). The triple planetary gear sets (118) are respectively engaged with the tooth grooves and the sun gear (119), and the triple planetary gear sets (118) are installed and connected to the blade connecting seat (121).

5. The stirring device for rapidly preparing photosensitive adhesive according to claim 1, characterized in that: An annular flow guide baffle (112) is provided on the inner arc surface above the reaction chamber (109), and a plurality of annularly distributed mounting brackets (108) are installed on the top of the annular flow guide baffle (112), and an arc-shaped mounting plate (107) is installed in the mounting bracket (108).

6. The stirring device for rapidly preparing photosensitive adhesive according to claim 5, characterized in that: An LED red light illumination module (106) is installed on the inner arc surface of the arc-shaped mounting plate (107), and an infrared temperature sensor (103) is installed on one side of the top end of the planetary transmission gear box (105), with the detection head of the infrared temperature sensor (103) facing the reaction chamber (109).

7. The stirring device for rapidly preparing photosensitive adhesive according to claim 1, characterized in that: A quality monitor (115) is fixedly provided at the bottom of the double-layer vacuum stirring kettle (101).

8. The stirring device for rapidly preparing photosensitive adhesive according to claim 1, characterized in that: A detachable closing cover (125) can be installed on the top of the double-layer vacuum stirring kettle body (101), and the closing cover (125) is divided into two pieces and is spliced to close the opening above the reaction chamber (109).

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