Synthesizer for water-based acrylic resin with high chemical resistance

Abstract

The utility model belongs to the technical field of resin synthesis, and particularly relates to a synthesis device of high-chemical-resistance water-based acrylic resin. Comprising a rack, a rotating shaft rotationally mounted on the rack, a rotating seat fixedly mounted on the rotating shaft, a driver for providing power for rotation of the rotating shaft and a reactor mounted on the rotating seat and far away from the center of the rotating seat, and an air exhaust mechanism for exhausting air in the reactor is mounted in the reactor; the air exhaust mechanism comprises an air exhaust cylinder, a piston slidably mounted in the air exhaust cylinder, a driving rod integrally connected with the piston, a tension spring sleeving the driving rod, a first one-way valve mounted at the top of the air exhaust cylinder, an exhaust pipe communicated with the air exhaust cylinder and extending out of the reactor, and a second one-way valve mounted in the exhaust pipe. The mixing of bubbles in the reaction process can be effectively reduced, the density of the finished water-based acrylic resin is improved, and the chemical resistance of the synthesized water-based acrylic resin is effectively improved; centrifugal rotation is adopted to replace traditional stirring, and more energy is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin synthesis, and in particular relates to a synthesis device for a highly chemical-resistant water-based acrylic resin. Background Art

[0002] Acrylic resin is a general term for polymers of acrylic acid, methacrylic acid and their derivatives. Acrylic resin coating is a thermoplastic or thermosetting resin coating made from acrylic resin obtained by copolymerizing (meth)acrylate and styrene with other acrylic esters.

[0003] For example, Chinese utility model patent CN212492948U discloses a synthesis device for high-solid acrylic resin, which belongs to the technical field of polymer synthesis equipment. It includes: a shell, a drive motor, a stirring shaft, a sleeve, a spiral stirring blade, two semiconductor cooling plates, a funnel and two cooling boxes; the spiral stirring blade is fixed on the sleeve, the sleeve is set on the stirring shaft and matched with the stirring shaft thread; the top inner wall of the funnel is provided with a stirring mechanism to prevent resin accumulation, and the lower bucket mouth of the funnel runs through the bottom of the shell. It can stir and heat in all directions with good effect, avoid accumulation, save energy and improve recycling efficiency.

[0004] However, the above synthesis device has the following defects: the traditional stirring method is used to increase the polymerization reaction rate, which easily causes gas to enter the liquid raw material, thereby leaving bubbles in the subsequent solidified granular resin. The presence of bubbles will reduce the density of the resin, thereby reducing its chemical resistance. This is because the bubbles destroy the structural integrity of the resin, making it easier for chemical substances to penetrate into the resin, thereby affecting its chemical resistance; and during the traditional stirring operation, the stirring mechanism encounters great resistance, which undoubtedly increases the energy consumption of the equipment. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a device for synthesizing water-based acrylic resin with high chemical resistance, which can effectively reduce the mixing of bubbles in the reaction process, improve the density of the finished water-based acrylic resin, and effectively improve the chemical resistance of the synthesized water-based acrylic resin; centrifugal rotation is used instead of traditional stirring to achieve a more energy-saving synthesis device for water-based acrylic resin with high chemical resistance.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synthesis device of highly chemical-resistant water-based acrylic resin, comprising a frame, a rotating shaft rotatably mounted on the frame, a rotating seat fixedly mounted on the rotating shaft, a driver providing power for the rotation of the rotating shaft, and a reactor mounted on the rotating seat away from the center of the rotating seat, wherein the central axis of the reactor is arranged at an acute angle to the central axis of the rotating seat, and an exhaust mechanism for extracting gas from the reactor is installed in the reactor. Furthermore, the upper part of the reactor is inclined toward the center of the rotating seat; the exhaust mechanism can adopt an equivalent part with an exhaust effect such as a vacuum pump; the driver comprises a driving motor and a transmission member, wherein the transmission member is preferably a gear, and the output end of the driving motor is connected to the rotating shaft through a gear; the driving motor adopts a speed-regulating motor.

[0007] Preferably, the vacuum mechanism includes a vacuum cylinder, a piston slidably installed in the vacuum cylinder, a drive rod integrally connected to the piston, a tension spring sleeved on the drive rod, a first one-way valve installed on the top of the vacuum cylinder, an exhaust pipe connected to the vacuum cylinder and extending to the outside of the reactor, and a second one-way valve installed in the exhaust pipe, the first one-way valve only allows the gas in the reactor to enter the vacuum cylinder in one direction, the second one-way valve only allows the gas in the vacuum cylinder to be discharged outward in one direction through the exhaust pipe, one end of the tension spring is fixedly connected to the piston, and the other end of the tension spring is connected to the inner wall of the bottom end of the vacuum cylinder; a push piece arranged corresponding to the drive rod is installed on the frame. Furthermore, the push piece is preferably a conical top block, and the tip of the conical top block is rounded; the conical push piece can also be a semicircular top block.

[0008] Preferably, a mounting seat is fixedly mounted on the frame, a driving gear is fixedly mounted on the mounting seat, a driven gear meshing with the driving gear is rotatably mounted on the rotating seat, a conical transmission wheel is fixedly mounted on the driven gear, and a conical gear ring transmission-connected to the conical transmission wheel is fixedly mounted on the reactor.

[0009] Preferably, the pushing member is hingedly mounted on a frame, and a driving cylinder for providing power for the pushing member to rotate is mounted on the frame, one end of the driving cylinder is hingedly mounted to the frame, and the other end of the driving cylinder is hingedly mounted to the pushing member.

[0010] Preferably, the reactors are in two groups, and the two groups of reactors are symmetrically mounted on the rotating seat.

[0011] Preferably, a material blocking blade is fixedly installed in the reactor.

[0012] Preferably, the reactor comprises a cylinder and a cylinder cover detachably and hermetically connected to the cylinder; further, a pressure gauge is installed on the cylinder cover.

[0013] Compared with the prior art, the utility model provides a synthesis device for a highly chemical-resistant water-based acrylic resin, which has the following beneficial effects: the synthesis device for a highly chemical-resistant water-based acrylic resin, by placing a liquid raw material into a reactor, a driver drives a rotating shaft and a rotating seat to rotate, and under the action of centrifugal force, the liquid raw material moves to the side of the reactor away from the center of the rotating shaft, and when the rotation speed of the rotating seat decreases, the liquid raw material flows to the side of the reactor close to the center of the rotating shaft, and the raw materials in the reactor are mixed and contacted during the shaking process to improve the reaction efficiency, and in this process, the exhaust mechanism extracts the gas in the reactor, effectively reducing the mixing of bubbles in the reaction process, and improving the density of the finished water-based acrylic resin, thereby effectively improving the chemical resistance of the synthesized water-based acrylic resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the top plan structure of the utility model.

[0016] Figure 3 It is a front planar structural schematic diagram of the utility model.

[0017] Figure 4 The utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0018] Markings in the accompanying drawings: 1. frame; 2. rotating shaft; 3. rotating seat; 4. driver; 5. vacuum cylinder; 6. piston; 7. driving rod; 8. tension spring; 9. first one-way valve; 10. exhaust pipe; 11. second one-way valve; 12. pushing member; 13. mounting seat; 14. driving gear; 15. driven gear; 16. conical transmission wheel; 17. conical gear ring; 18. driving cylinder; 19. material blocking blade; 20. cylinder body; 21. cylinder cover. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] Example 1

[0023] Please refer to Figure 1-3 A synthesis device for a highly chemical-resistant water-based acrylic resin comprises a frame 1, a rotating shaft 2 rotatably mounted on the frame 1, a rotating seat 3 fixedly mounted on the rotating shaft 2, a driver 4 providing power for the rotation of the rotating shaft 2, and a reactor mounted on the rotating seat 3 away from the center of the rotating seat 3, wherein the central axis of the reactor is arranged at an acute angle to the central axis of the rotating seat 3, and an exhaust mechanism for extracting gas from the reactor is installed in the reactor.

[0024] There are two groups of reactors in this embodiment, and the two groups of reactors are symmetrically installed on the rotating seat 3. The upper part of the reactor is inclined toward the center of the rotating seat 3; the driver 4 includes a driving motor and a transmission member, and the transmission member is preferably a gear. The output end of the driving motor is connected to the rotating shaft 2 through the gear; the driving motor adopts a speed regulating motor.

[0025] Please refer to Figure 4 The vacuum mechanism includes a vacuum cylinder 5, a piston 6 slidably mounted in the vacuum cylinder 5, a driving rod 7 integrally connected with the piston 6, a tension spring 8 sleeved on the driving rod 7, a first one-way valve 9 mounted on the top of the vacuum cylinder 5, an exhaust pipe 10 connected with the vacuum cylinder 5 and extending out of the reactor, and a second one-way valve 11 mounted in the exhaust pipe 10. The first one-way valve 9 only allows the gas in the reactor to enter the vacuum cylinder 5 in one direction, and the second one-way valve 11 only allows the gas in the vacuum cylinder 5 to be discharged in one direction through the exhaust pipe 10. One end of the tension spring 8 is fixedly connected with the piston 6, and the other end of the tension spring 8 is connected with the inner wall of the bottom end of the vacuum cylinder 5. A push piece 12 arranged corresponding to the driving rod 7 is installed on the frame 1. The vacuum mechanism can adopt an equivalent part with a vacuum effect, such as a vacuum pump.

[0026] The push piece 12 in this embodiment is preferably a conical push piece, and the tip of the conical push piece is rounded; the conical push piece 12 can also be a semicircular push piece. The push piece 12 is hingedly mounted on the frame 1, and a drive cylinder 18 is mounted on the frame 1 to provide power for the push piece 12 to rotate. One end of the drive cylinder 18 is hingedly connected to the frame 1, and the other end of the drive cylinder 18 is hingedly connected to the push piece 12.

[0027] The synthesis device of highly chemical-resistant water-based acrylic resin provided in this embodiment, under the tension of the tension spring 8, the piston 6 moves downward along the inner wall of the vacuum cylinder 5, the air pressure in the vacuum cylinder 5 is reduced, the first one-way valve 9 is opened, the second one-way valve 11 is closed, and the gas in the reactor is sucked into the vacuum cylinder 5. When the end of the driving rod 7 contacts the push piece 12, the piston 6 moves upward along the inner wall of the vacuum cylinder 5, the air pressure in the vacuum cylinder 5 is increased, the first one-way valve 9 is closed, the second one-way valve 11 is opened, and the rotating seat 3 drives the reactor to rotate, and the driving rod 7 and the push piece 12 reciprocate. The vacuum pump 10 can be used to pump out the gas in the reactor by contacting and disengaging. No external power is required, and the structural layout is scientific and reasonable. When the pressure in the reactor reaches the required vacuum state, the output end of the driving cylinder 18 is shortened, and the pushing member 12 is rotated from the inclined state to the side away from the center of the frame 1 to the vertical state, and the pushing member 12 is disengaged from the driving rod 7, and the vacuum pumping process in the reactor is stopped. The two groups of reactors are symmetrically installed on the rotating seat 3, so that the rotating seat 3 can be balanced to improve the rotation stability of the rotating seat 3, and at the same time, the single synthesis amount of water-based acrylic resin can be increased.

[0028] Example 2

[0029] Please refer to Figure 4 A mounting seat 13 is fixedly mounted on the frame 1, a driving gear 14 is fixedly mounted on the mounting seat 13, a driven gear 15 meshing with the driving gear 14 is rotatably mounted on the rotating seat 3, a conical transmission wheel 16 is fixedly mounted on the driven gear 15, and a conical gear ring 17 transmission-connected to the conical transmission wheel 16 is fixedly mounted on the reactor.

[0030] The reactor comprises a cylinder 20 and a cylinder cover 21 detachably and hermetically connected to the cylinder 20; further, a pressure gauge (not shown in the figure) is installed on the cylinder cover 21; the pressure gauge is used to monitor the internal pressure of the reactor in real time. A material blocking blade 19 is fixedly installed in the cylinder 20.

[0031] In the synthesis device of highly chemical-resistant water-based acrylic resin provided in this embodiment, during the rotation of the rotating seat 3, the driven gear 15 rotates around the driving gear 14, and after being driven by the conical transmission wheel 16 and the conical gear ring 17, the reactor rotates. During the rotation of the reactor, the liquid raw material in the reactor performs centrifugal motion around the central axis of the reactor, during which the rotation speed of the driving motor changes, the rotation speed of the reactor decreases, and the liquid raw material moves at the original speed under the action of inertia force, and the material blocking blade 19 can block the material in the reactor to increase the mixing contact rate of the liquid raw material in the reactor, greatly improve the mixing uniformity of the reaction raw materials, and improve the reaction effect; after the reaction is completed, the synthesized water-based acrylic resin in the cylinder 20 can be taken out by opening the cylinder cover 21.

[0032] The use process of the synthesis device of highly chemical-resistant water-based acrylic resin provided by the utility model is as follows: by putting liquid raw materials into the reactor, the driver 4 drives the rotating shaft 2 and the rotating seat 3 to rotate, and the reactor rotates after being driven by the driven gear 15, the conical transmission wheel 16 and the conical gear ring 17 to achieve mixed contact of the materials in the reactor, and the exhaust mechanism timely extracts the gas in the reactor during the whole reaction process until the reactor is in a negative pressure state; after the reaction is completed, the cylinder cover 21 is opened to discharge the liquid water-based acrylic resin synthesized in the cylinder 20.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A synthesis device for a highly chemical-resistant water-based acrylic resin, characterized in that: The invention comprises a frame (1), a rotating shaft (2) rotatably mounted on the frame (1), a rotating seat (3) fixedly mounted on the rotating shaft (2), a driver (4) providing power for the rotating shaft (2) to rotate, and a reactor mounted on the rotating seat (3) away from the center of the rotating seat (3), wherein the central axis of the reactor and the central axis of the rotating seat (3) are arranged at an acute angle, and an exhaust mechanism for extracting gas from the reactor is installed in the reactor.

2. The synthesis device of a highly chemical-resistant water-based acrylic resin according to claim 1, characterized in that: The vacuum mechanism comprises a vacuum cylinder (5), a piston (6) slidably mounted in the vacuum cylinder (5), a driving rod (7) integrally connected to the piston (6), a tension spring (8) sleeved on the driving rod (7), a first one-way valve (9) mounted on the top of the vacuum cylinder (5), an exhaust pipe (10) connected to the vacuum cylinder (5) and extending to the outside of the reactor, and a second one-way valve (11) mounted in the exhaust pipe (10), wherein the first one-way valve (9) only allows gas in the reactor to enter the vacuum cylinder (5) in one direction, and the second one-way valve (11) only allows gas in the vacuum cylinder (5) to be discharged in one direction through the exhaust pipe (10), one end of the tension spring (8) is fixedly connected to the piston (6), and the other end of the tension spring (8) is connected to the inner wall of the bottom end of the vacuum cylinder (5); and a push piece (12) arranged corresponding to the driving rod (7) is mounted on the frame (1).

3. A synthesis device for a highly chemical-resistant water-based acrylic resin according to claim 2, characterized in that: A mounting seat (13) is fixedly mounted on the frame (1), a driving gear (14) is fixedly mounted on the mounting seat (13), a driven gear (15) meshing with the driving gear (14) is rotatably mounted on the rotating seat (3), a conical transmission wheel (16) is fixedly mounted on the driven gear (15), and a conical gear ring (17) drivingly connected to the conical transmission wheel (16) is fixedly mounted on the reactor.

4. The synthesis device of a highly chemical-resistant water-based acrylic resin according to claim 2, characterized in that: The pushing member (12) is hingedly mounted on the frame (1), and a driving cylinder (18) is mounted on the frame (1) for providing power for the pushing member (12) to rotate. One end of the driving cylinder (18) is hingedly mounted on the frame (1), and the other end of the driving cylinder (18) is hingedly mounted on the pushing member (12).

5. The synthesis device of a highly chemical-resistant water-based acrylic resin according to claim 3, characterized in that: The reactors are in two groups, and the two groups of reactors are symmetrically mounted on the rotating seat (3).

6. A synthesis device for a highly chemical-resistant waterborne acrylic resin according to claim 1 or 3, characterized in that: A material blocking blade (19) is fixedly installed in the reactor.

7. A synthesis device for a highly chemical-resistant water-based acrylic resin according to claim 1 or 3, characterized in that: The reactor comprises a cylinder (20) and a cylinder cover (21) detachably and hermetically connected to the cylinder (20).

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