A device and process for preparing dealcoholized silicone sealant

Abstract

The present application relates to the technical field of mixing equipment and discloses a device for preparing dealcoholized silicone sealant, which is mainly composed of an outer cylinder, an inner cylinder, a cover, a rotating rod, a block, a ring plate and a lifting rod. The inner side of the outer cylinder is provided with an inner cylinder, and the upper openings of the outer cylinder and the inner cylinder are jointly provided with a cover. A rotating rod is provided inside the cover, and the lower end of the rotating rod extends into the inner cylinder. The lower end of the rotating rod is provided with a block, and the block passes through the inner cylinder and fits with the inner cylinder. A ring plate is sleeved on the outer side of the rotating rod in the inner cylinder, and a lifting rod is provided on the upper side of the ring plate. The present invention uses the ring plate and the inner cylinder to drive the material to move up intermittently and contact with the rotating inner cylinder, so that the material is subjected to the action of centrifugal force, thereby slowing down its falling speed. Through the above-mentioned action, the area of ​​the material heated or cooled is increased, thereby improving the heating or cooling effect of the material.

Description

Technical Field

[0001] The present application relates to the technical field of mixing equipment, and in particular to a device and process for preparing dealcoholized silicone sealant. Background Art

[0002] The mixing kettle is also called a stirring kettle. In the process of preparing dealcoholized silicone sealant, it is often used to stir and mix materials to obtain the finished sealant product.

[0003] Some existing mixing kettles are mainly composed of a cylinder, an agitator and a vacuum mechanism. When in use, a variety of materials (liquids and powdered solids) are added to the cylinder, and then the vacuum mechanism is used to evacuate the inner cavity of the cylinder. Finally, the agitator is operated to mix the materials evenly, and finally a finished sealant product is obtained. At the same time, in the above process, based on the different types of sealants, it is sometimes necessary to fill the cavity in the cylinder wall with high-temperature steam or water to achieve heating or cooling of the material in the cylinder. However, in this case, due to the action of gravity, the material is at the bottom of the cylinder, which makes the heating or cooling effect of the material poor. In order to achieve effective heating and cooling of the material, it is often necessary to extend the heating or cooling time, which will affect the preparation efficiency of the sealant. Summary of the Invention

[0004] The present application proposes a dealcoholized silicone sealant preparation device, which has the advantage of improving the heating or cooling effect of the material, and is used to solve the problem of poor heating or cooling effect affecting the efficiency of sealant preparation.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a dealcoholized silicone sealant preparation device, comprising: an outer cylinder, a cavity is opened inside the outer cylinder, an inner cylinder is arranged on the inner side of the outer cylinder, a cover body is arranged at the upper opening of the outer cylinder and the inner cylinder, the cover body is fixedly connected to the outer cylinder, the cover body is sealed and movablely connected to the inner cylinder, a discharge pipe is arranged at the lower side of the inner cylinder, the upper end of the discharge pipe is communicated with the inner cavity of the inner cylinder, the lower end of the discharge pipe passes through the outer cylinder and is communicated with the external environment, and a vacuum seal is fixed on the upper side of the cover body. The cam is provided with a lifting rod at the center position inside the cover body, the upper side of the lifting rod is connected to the power mechanism, the lower end of the lifting rod extends into the inner cavity of the inner cylinder, the lower end of the lifting rod is connected to the clamping block, and the clamping block is a prismatic structure. The clamping block passes through the inner cylinder and fits with the inner cylinder. A ring plate is sleeved on the outer side of the rotating rod in the inner cylinder, and the inner side of the ring plate is inclined upward. There is a distance between the outer side of the ring plate and the inner wall of the inner cylinder. A lifting rod is provided on the upper side of the ring plate, and the upper end of the lifting rod passes through the cover body and is connected to the lifting mechanism.

[0006] Furthermore, a movable groove is provided at the lower side of the ring plate, a contact plate is provided in the movable groove, a sliding groove is provided on one side of the contact plate inside the ring plate, a slider is provided in the sliding groove, the slider is connected to the contact plate, a fixing mechanism is provided inside the ring plate, the fixing mechanism is connected to the slider, and when the ring plate moves up and down, the slider is driven to move by the fixing mechanism.

[0007] Furthermore, the fixing mechanism includes an external magnetic part, an internal magnetic part, a force block, a sleeve ring and a connecting rod, the external magnetic part is provided inside the ring plate on the side of the slide groove facing away from the rotating rod, the internal magnetic part is provided inside the ring plate on the side of the slide groove facing the rotating rod, the end of the slider facing the external magnetic part forms an opposite-pole attraction with the external magnetic part, and the end of the slider facing the inner magnetic part forms an opposite-pole attraction with the inner magnetic part, the upper and lower sides of the rotating rod are provided with force blocks, the force blocks are arranged in a conical structure, the outer side of the rotating rod is provided with a sleeve ring at a position between the upper and lower force blocks, the outer side of the sleeve ring is provided with a connecting rod, one end of the connecting rod is hinged to the outer side surface of the sleeve ring, the other end of the connecting rod is hinged to the inner end of the contact plate, and the inner side of the sleeve ring forms a sliding contact with the conical inclined surface of the force block.

[0008] Furthermore, the fixing mechanism includes a tensioning mechanism, an elastic member and a pull rope. The lifting rod at the upper side of the cover body is connected to the tensioning mechanism. An elastic member is provided in the slide groove on the side of the slider facing the rotating rod. The two ends of the elastic member are respectively connected to the side of the slider facing the rotating rod and the inner wall of the slide groove. The output end of the tensioning mechanism is connected to one end of the pull rope, and the other end of the pull rope passes through the lifting rod and the ring plate, and passes through the slider and the elastic member distributed along the semicircle of the ring plate from the outside to the inside in turn. The part of the pull rope passing through the slider is fixedly connected to the slider.

[0009] Furthermore, a guide plate is provided on the lower side of the ring plate at a position between adjacent contact plates.

[0010] Furthermore, the side surface of the guide plate facing the contact plate is an arc surface.

[0011] A process for preparing a dealcoholized silicone sealant comprises the following steps:

[0012] In the first step, alkoxy-terminated polyorganosiloxane, dimethyl silicone oil, fumed silica, and pigment are respectively added into a dealcoholized silicone sealant preparation device, dehydrated at high temperature for one hour under vacuum conditions, and cooled to room temperature;

[0013] Step 2: Add cross-linking agent, adhesion promoter and catalyst according to the metered amount and mix in vacuum for 30 minutes. Then filter under the protection of dry nitrogen and fill into the hose.

[0014] This application has the following beneficial effects:

[0015] The present application provides a device for preparing dealcoholized silicone sealant. By setting a ring plate and an inner cylinder, the ring plate is used to drive the material to move upward intermittently and contact the rotating inner cylinder, so that the material is subjected to centrifugal force, thereby slowing down its falling speed. Through the above action, the area of ​​the material heated or cooled is increased, thereby improving the heating or cooling effect of the material.

[0016] By setting the contact plate, the downward moving contact plate contacts the slowly falling material, prompting the material to move along the lower side of the contact plate, and move and fall toward the center of the inner cylinder. Through the above action, the above material is prompted to have a certain wrapping effect on the light material near the center of the inner cylinder, and drive the light material to fall to the bottom of the inner cylinder, and then participate in the mixing operation. Through the above action, the mixing effect of the material is further improved.

[0017] Through the arrangement of the ring plate and the contact plate, when the ring plate moves up, it will drive the heavier material near the outer position of the inner cylinder to move upward, thereby prompting the lighter material near the inner position of the inner cylinder to move outward. Afterwards, the contact plate drives the above-mentioned heavier material to move toward the center of the inner cylinder, and finally the heavier material is affected by centrifugal force, thereby squeezing the above-mentioned lighter material. Through the above-mentioned action, the mixing effect of the materials is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0019] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

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

[0021] Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram of the structure at center A;

[0022] Figure 3 Schematic diagram of the internal structure of the ring plate in Example 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection between the ring plate and the guide plate in the second embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the distribution state of the guide plates in the second embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the cover connection structure in the third embodiment of the present invention;

[0026] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of the structure at point B in the middle;

[0027] Figure 8 This is a schematic diagram of the connection between the pull rope and the first slider in the third embodiment of the present invention;

[0028] Figure 9 This is a schematic diagram of the connection between the pull rope and the middle slider in the third embodiment of the present invention;

[0029] Figure 10 This is a schematic diagram of the connection between the pull rope and the tail slider in embodiment 3 of the present invention.

[0030] 1. Outer cylinder; 2. Inner cylinder; 3. Cover; 4. Discharge pipe; 5. Vacuum mechanism; 6. Rotating rod; 7. Block; 8. Ring plate; 9. Lifting rod; 10. Contact plate; 11. Slide groove; 12. Slider; 13. External magnetic part; 14. Internal magnetic part; 15. Force block; 16. Socket ring; 17. Connecting rod; 18. Guide plate; 19. Tensioning mechanism; 20. Elastic part; 21. Pull rope. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] Example 1

[0033] See also Figure 1 and Figure 2, a dealcoholized silicone sealant preparation device, comprising: an outer cylinder 1, the inner part of the outer cylinder 1 is provided with a cavity (not shown in the figure) for passing steam or cooling water, an inner cylinder 2 is slidably mounted on the inner side of the outer cylinder 1, a cover 3 is mounted on the upper openings of the outer cylinder 1 and the inner cylinder 2, the cover 3 is fixedly connected to the outer cylinder 1, and the cover 3 is in sealed sliding connection with the inner cylinder 2, a discharge pipe 4 is fixedly mounted on the lower side of the inner cylinder 2, the upper end of the discharge pipe 4 is communicated with the inner cavity of the inner cylinder 2, the lower end of the discharge pipe 4 passes through the outer cylinder 1 and is in communication with the external environment, the portion of the discharge pipe 4 passing through the outer cylinder 1 is slidably connected to the outer cylinder 1, and a switch is provided on one side of the discharge pipe 4 The valve is used to control the opening and closing of the discharge pipe 4. A vacuum mechanism 5 is fixed on the upper side of the cover body 3 to evacuate the cavity surrounded by the inner cylinder 2 and the cover body 3. A rotating rod 6 is installed in the center position of the cover body 3 for sealing and rotation. The upper side of the rotating rod 6 is connected to the power mechanism (such as a motor). The lower end of the rotating rod 6 extends into the inner cavity of the inner cylinder 2. The lower end of the rotating rod 6 is connected to the card block 7. The card block 7 is a prismatic structure. The card block 7 passes through the inner cylinder 2 and closes the position where the discharge pipe 4 is connected to the inner cylinder 2. The part of the card block 7 passing through the inner cylinder 2 fits with the inner cylinder 2. A ring plate 8 is sleeved on the outside of the rotating rod 6 in the inner cylinder 2. The inner side of the ring plate 8 is tilted upward, as shown in FIG. Figure 1 As shown, there is a gap between the outer side of the ring plate 8 and the inner wall of the inner cylinder 2, and a lifting rod 9 is fixedly installed on the upper side of the ring plate 8. The upper end of the lifting rod 9 passes through the cover body 3 and is connected to the lifting mechanism (such as a manipulator). When in use, a variety of materials (liquids and powdered solids) are added to the inner cylinder 2. After that, the cover body 3 is closed, and the vacuum mechanism 5 is used to evacuate the cavity surrounded by the inner cylinder 2 and the cover body 3. Then, the power mechanism drives the rotating rod 6 to rotate, so that the inner cylinder 2 rotates accordingly. At the same time, high-temperature steam or water is filled into the cavity in the outer cylinder 1, thereby achieving the addition of materials. To heat or cool, during the rotation of the inner cylinder 2, the lifting mechanism drives the lifting rod 9 to move up and down, so that the ring plate 8 moves synchronously. When the ring plate 8 moves up, it will drive the material on the upper side of the ring plate 8 to move up, so that the material is affected by gravity and then falls along the gap between the ring plate 8 and the inner cylinder 2. In this process, the falling material contacts the rotating inner cylinder 2 and is then affected by centrifugal force, which slows down the falling speed of the material. Through the above action, the area of ​​the material heated or cooled is increased, thereby improving the heating or cooling effect of the material.

[0034] See also Figure 1-Figure 3, a moving groove is provided at equal intervals on the lower side of the ring plate 8, and a contact plate 10 is sealed and slidably installed in the moving groove. A sliding groove 11 is provided on one side of the contact plate 10 inside the ring plate 8, and a slider 12 is slidably installed in the sliding groove 11. The side of the slider 12 facing the contact plate 10 is welded and fixed to the contact plate 10. An external magnetic part 13 is fixed on the side of the sliding groove 11 facing away from the rotating rod 6 inside the ring plate 8, and an internal magnetic part 14 is fixed on the side of the sliding groove 11 facing the rotating rod 6 inside the ring plate 8. One end of the slider 12 facing the external magnetic part 13 forms an opposite pole attraction with the external magnetic part 13, and one end of the slider 12 facing the inner magnetic part 14 forms an opposite pole attraction with the inner magnetic part 14. Force blocks 15 are fixed on the upper and lower sides of the rotating rod 6. The force blocks 15 are all in the cavity of the inner cylinder 2. The force blocks 15 are arranged in a conical structure. A sleeve ring 16 is arranged on the outer side of the rotating rod 6 between the upper and lower force blocks 15. A connecting rod 17 is equidistantly arranged on the outer side of the sleeve ring 16. One end of the connecting rod 17 is hinged to the outer side of the sleeve ring 16, and the other end of the connecting rod 17 is hinged to the inner end of the contact plate 10. The inner side of the sleeve ring 16 forms a sliding contact with the conical inclined surface of the force block 15. When the above-mentioned ring plate 8 moves upward, it will drive the sleeve ring 16 to move upward synchronously. When the ring plate 8 moves up to the same height as the force block 15 at the upper side, it stops. In this process, the sleeve ring 16 contacts the force block 15 at the upper side, causing the sleeve ring 16 to move downward and drive the contact plate 10 through the connecting rod 17. The movement causes the outer end of the contact plate 10 to extend and approximately contact the inner wall of the inner cylinder 2 (there is a distance in millimeters between the outer end of the contact plate 10 and the inner cylinder 2). At the same time, the moving contact plate 10 will drive the slider 12 to move outward, causing the slider 12 to attract the external magnetic member 13. After the ring plate 8 stops for a short time, the lifting mechanism drives the ring plate 8 to move downward at a faster speed, causing the contact plate 10 to move downward synchronously. Afterwards, the downward moving contact plate 10 is used to contact the material slowly falling along the inner wall of the inner cylinder 2, prompting the material to move along the lower side of the contact plate 10 and move and fall toward the center of the inner cylinder 2. Through the above action, the above material is prompted to generate a certain amount of packing on the light material (such as powdered material) near the center of the inner cylinder 2. The ring plate 8 moves upward, and the heavier material near the outer position of the inner cylinder 2 is driven to move upward, thereby prompting the lighter material near the inner position of the inner cylinder 2 to move outward. Afterwards, the contact plate 10 drives the heavier material toward the center of the inner cylinder 2, and finally causes the heavier material to be subjected to the centrifugal force, thereby squeezing the lighter material. Through the above action, the mixing operation of the materials is realized. Afterwards, when the ring plate 8 moves down to the initial position, the sleeve ring 16 contacts the force block 15 at the lower position, causing the sleeve ring 16 to move up and drive the contact plate 10 to reset.

[0035] Example 2

[0036] See also Figure 1 、 Figure 4 and Figure 5 This embodiment is a further improvement of the first embodiment, and the improvement lies in that a guide plate 18 is fixedly installed on the lower side of the ring plate 8 between adjacent contact plates 10, and the side of the guide plate 18 facing the contact plate 10 is an arc surface structure. Through the arrangement of the guide plate 18, during the up and down movement of the ring plate 8, the guide plate 18 that rotates relative to the inner cylinder 2 will stir the material in the inner cylinder 2, thereby improving the mixing effect of the material. At the same time, during the downward movement of the ring plate 8, the material contacted by the contact plate 10 is subjected to the inertia of the centrifugal force applied by the inner cylinder 2, and then contacts the guide plate 18 and moves along the arc surface of the guide plate 18. Through the above action, the material is further prompted to move toward the center position of the inner cylinder 2, thereby improving the mixing effect of the material.

[0037] Example 3

[0038] See also Figures 6-10 , this embodiment is a further improvement of the first or second embodiment, and the improvement is that: the lifting rod 9 at the upper side of the cover body 3 is fixedly installed with a tensioning mechanism 19 (such as an electric telescopic rod), and an elastic member 20 is provided on the side of the slider 12 facing the rotating rod 6 in the slide 11. The two ends of the elastic member 20 are respectively connected to the side of the slider 12 facing the rotating rod 6 and the inner wall of the slide 11. The output end of the tensioning mechanism 19 is connected to one end of the pull rope 21, and the other end of the pull rope 21 passes through the lifting rod 9 and the ring plate 8, and sequentially passes through the sliding holes distributed along the half circumference of the ring plate 8 from the outside to the inside. The block 12 and the elastic member 20, the part of the pull rope 21 passing through the slider 12 forms a fixed connection with the slider 12. After moving to the specified position on the ring plate 8, the tensioning mechanism 19 pulls the pull rope 21, thereby driving the slider 12 connected to the pull rope 21 to move outward and stretching the elastic member 20, so that the contact plate 10 extends out. Afterwards, when the ring plate 8 moves down to the initial position, the tensioning mechanism 19 relaxes the pull rope 21, so that the elastic member 20 drives the slider 12 to reset, so that the contact plate 10 is reset. Through the setting of the above structure, the corresponding structure in Example 1 is replaced.

[0039] Example 4

[0040] A process for preparing a dealcoholized silicone sealant (typical low-viscosity, fast-curing dealcoholized RTV silicone sealant) comprises the following steps:

[0041] Raw materials and formula: 100 parts of alkoxy-terminated polyorganosilane; 1.5 parts of coupling agent; 10 parts of dimethyl silicone oil; 3 parts of catalyst; 1-4 parts of fumed silica; 0.5 parts of pigment; 3-8 parts of crosslinking agent; and appropriate amounts of other additives.

[0042] Preparation process:

[0043] In the first step, alkoxy-terminated polyorganosiloxane, dimethyl silicone oil, fumed silica, and pigment are respectively added into a dealcoholized silicone sealant preparation device, dehydrated at high temperature for one hour under vacuum conditions, and cooled to room temperature;

[0044] Step 2: Add cross-linking agent, adhesion promoter and catalyst according to the metered amount and mix in vacuum for 30 minutes. Then filter under the protection of dry nitrogen and fill into the hose.

[0045] Example 5

[0046] A process for preparing a dealcoholized silicone sealant (typical single-component transparent dealcoholized polysiloxane sealant) comprises the following steps:

[0047] Raw materials and formula: 100 parts of 107 silicone rubber; 20 parts of methyl silicone oil; 8 parts of fumed silica filler; 12 parts of a premix of silicone oil, crosslinking agent [vinyltrimethoxysilane, tetrakis(2-methylethoxy)silane], dibutyltin diacetylacetonate, dibutyltin dilaurate, and adhesion promoter (2-aminoethyl-3-aminopropylmethyldimethoxysilane, 7-aminoethylaminopropyltrimethoxysilane).

[0048] Preparation process:

[0049] The first step is to add 107 silicone rubber and dimethyl silicone oil into the dealcoholized silicone sealant preparation device and vacuum mix them evenly;

[0050] The second step is to add the premixed agent and fumed silica filler prepared according to the ratio, mix them evenly and then discharge the material.

Claims

1. A device for preparing dealcoholized silicone sealant, comprising: An outer cylinder (1) is provided with a cavity inside the outer cylinder (1), characterized in that an inner cylinder (2) is provided on the inner side of the outer cylinder (1), a cover body (3) is provided at the upper opening of the outer cylinder (1) and the inner cylinder (2), the cover body (3) is fixedly connected to the outer cylinder (1), the cover body (3) is sealed and movablely connected to the inner cylinder (2), a discharge pipe (4) is provided at the lower side of the inner cylinder (2), the upper end of the discharge pipe (4) is communicated with the inner cavity of the inner cylinder (2), the lower end of the discharge pipe (4) passes through the outer cylinder (1) and is communicated with the external environment, a vacuum mechanism (5) is fixed on the upper side of the cover body (3), and a vacuum mechanism (5) is provided at the center of the inner side of the cover body (3). A rotating rod (6) is provided, the upper side of the rotating rod (6) is connected to the power mechanism, the lower end of the rotating rod (6) extends into the inner cavity of the inner cylinder (2), the lower end of the rotating rod (6) is connected to the clamping block (7), the clamping block (7) is a prismatic structure, the clamping block (7) passes through the inner cylinder (2) and fits with the inner cylinder (2), a ring plate (8) is sleeved on the outer side of the rotating rod (6) in the inner cylinder (2), the inner side of the ring plate (8) is inclined upward, and there is a gap between the outer side of the ring plate (8) and the inner wall of the inner cylinder (2), a lifting rod (9) is provided on the upper side of the ring plate (8), the upper end of the lifting rod (9) passes through the cover body (3) and is connected to the lifting mechanism; A movable groove is provided at the lower side of the ring plate (8), a contact plate (10) is provided in the movable groove, a sliding groove (11) is provided on one side of the contact plate (10) in the ring plate (8), a slider (12) is provided in the sliding groove (11), the slider (12) is connected to the contact plate (10), a fixing mechanism is provided in the ring plate (8), the fixing mechanism is connected to the slider (12), and when the ring plate (8) moves up and down, the slider (12) is driven to move by the fixing mechanism; The fixing mechanism includes an outer magnetic part (13), an inner magnetic part (14), a force block (15), a sleeve ring (16) and a connecting rod (17), wherein the outer magnetic part (13) is provided inside the ring plate (8) on the side of the slide groove (11) facing away from the rotating rod (6), and the inner magnetic part (14) is provided inside the ring plate (8) on the side of the slide groove (11) facing the rotating rod (6), and one end of the slider (12) facing the outer magnetic part (13) forms an opposite pole attraction with the outer magnetic part (13), and one end of the slider (12) facing the inner magnetic part (14) forms an opposite pole attraction with the inner magnetic part (1 4) forming opposite poles attracting each other, the upper and lower sides of the rotating rod (6) are both provided with force blocks (15), the force blocks (15) are arranged in a conical structure, the outer side of the rotating rod (6) is provided with a sleeve ring (16) between the upper and lower force blocks (15), the outer side of the sleeve ring (16) is provided with a connecting rod (17), one end of the connecting rod (17) is hinged to the outer side surface of the sleeve ring (16), the other end of the connecting rod (17) is hinged to the inner side end of the contact plate (10), and the inner side of the sleeve ring (16) forms a sliding contact with the conical inclined surface of the force block (15).

2. A device for preparing dealcoholized silicone sealant according to claim 1, characterized in that: A guide plate (18) is provided on the lower side of the ring plate (8) at a position between adjacent contact plates (10).

3. A device for preparing dealcoholized silicone sealant according to claim 2, characterized in that: The side surface of the guide plate (18) facing the contact plate (10) is arranged as an arc surface.

4. A process for preparing a sealant using the dealcoholized silicone sealant preparation device of claim 1, characterized in that: The following steps are involved: In the first step, alkoxy-terminated polyorganosiloxane, dimethyl silicone oil, fumed silica, and pigment are respectively added into a dealcoholized silicone sealant preparation device, dehydrated at high temperature for one hour under vacuum conditions, and cooled to room temperature; Step 2: Add cross-linking agent, adhesion promoter and catalyst according to the metered amount and mix in vacuum for 30 minutes. Then filter under the protection of dry nitrogen and fill into the hose.

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