A device and process for preparing pressure-sensitive adhesive suitable for adhesive tape

Abstract

The present invention relates to the technical field of pressure-sensitive adhesive preparation, specifically to a pressure-sensitive adhesive preparation device and process suitable for adhesive tapes, comprising a preparation box, a control panel fixedly connected to the left surface of the preparation box, a first reaction cylinder arranged inside the preparation box, a feed cover arranged at the top of the first reaction cylinder, a second delivery pipe arranged inside the first reaction cylinder on the right surface of the first reaction cylinder, and an electric push rod, a top plate arranged at the top of the electric push rod. The present invention can disperse the initiator sprayed through the feed pipe to the surface of the solution inside the second reaction cylinder by a counter-rotating beating ring when the lower turntable and the upper turntable rotate in opposite directions, and the second reaction cylinder is also stirred evenly, so that the internal solution fully reacts with the initiator, thereby solving the problem of uneven molecular weight in the past.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure-sensitive adhesive preparation, in particular to a pressure-sensitive adhesive preparation device and process suitable for adhesive tapes. Background Art

[0002] Pressure-sensitive adhesives (PSA) are also commonly known as self-adhesive adhesives or simply pressure-sensitive adhesives. PSA products include three categories: PSA tapes, labels, and films.

[0003] In this regard, Chinese patent application number CN201410570798.3 discloses a method for preparing a pressure-sensitive adhesive, comprising: mixing 10-30 parts by weight of a hard monomer, 60-90 parts by weight of a soft monomer, 1-10 parts by weight of a functional monomer, and 80-120 parts by weight of ethyl acetate, heating the mixture until the total weight of the hard monomer, soft monomer, and functional monomer is 100 parts; adding a first initiator solution, a second initiator solution, and a third initiator solution in stages for reaction; then cooling and discharging the mixture to obtain an acrylate prepolymer; and uniformly mixing 100 parts by weight of the acrylate prepolymer, 0.2-0.5 parts by weight of a curing agent, 0.5-3 parts by weight of a silane coupling agent, and 75-95 parts by weight of ethyl acetate to obtain a pressure-sensitive adhesive. The present invention provides a pressure-sensitive adhesive prepared by the aforementioned method and its application. This method overcomes the drawback of difficult-to-control reaction processes, reduces hazards to humans and the environment, and produces a pressure-sensitive adhesive with excellent performance, enabling its application on polarizers.

[0004] However, in the process of adding the initiator, since the initiator is still initiating in the solution, and the initiator only reacts in the local area where it is dropped, the local reaction contact area is small, and there will be a problem of intense local reaction and smaller reaction in another area, which will lead to uneven molecular weight and have a great impact on the reaction product. At the same time, the amount of initiator used each time needs to be controlled to a certain extent. Too much will cause the reaction speed to be too fast, and too little will affect the normal reaction and affect the polymer performance. Therefore, it is urgent to improve and perfect the above-mentioned problems. Summary of the Invention

[0005] The object of the present invention is to provide a device and process for preparing a pressure-sensitive adhesive suitable for an adhesive tape, so as to solve the problem proposed in the above-mentioned background technology that during the process of adding an initiator, since the initiator is still in the solution for initiation, and the initiator dripped in only reacts in the local area where it is dripped, the local reaction contact area is small, and there will be a violent local reaction and a small reaction in another area, thereby resulting in uneven molecular weight, which has a great impact on the reaction product. At the same time, the amount of initiator used each time needs to be controlled to a certain extent. If too much is used, the reaction speed will be too fast, and if too little is used, it will affect the normal reaction and affect the polymer performance.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a pressure-sensitive adhesive preparation device suitable for adhesive tapes, comprising a preparation box, a control panel fixedly connected to the left surface of the preparation box, a first reaction cylinder disposed inside the preparation box, a feed cap disposed at the top of the first reaction cylinder, a second delivery tube disposed on the right surface of the first reaction cylinder, the second delivery tube disposed inside the first reaction cylinder, an infusion pump disposed at an end of the second delivery tube away from the first reaction cylinder, the first delivery tube disposed on the right surface of the infusion pump, and a second reaction cylinder disposed on the upper surface of the preparation box;

[0007] An electric push rod is installed on the top of the second reaction cylinder, and a top plate is provided on the top of the electric push rod. A moving column is fixedly connected to the right surface of the top plate, and a sponge pad is provided on the bottom surface of the moving column. A screen is provided at the bottom end of the sponge pad, and an interpenetrating cylinder is provided on the inner side wall of the screen. A feeding groove is provided on the left surface of the interpenetrating cylinder, and the feeding groove and the first conveying pipe are adapted to each other. The position of the feeding groove is at the same height as the top surface of the sponge pad. A receiving cylinder is provided on the outer surface of the interpenetrating cylinder, and a movable groove is provided on the inner side wall of the receiving cylinder. A torsion shaft is provided inside the movable groove, and a torque shaft is provided on the left surface of the torsion shaft. A sealing ring is provided, a movable shaft is provided on the surface of the sealing ring, an insertion rod is provided on the surface of the movable shaft, the insertion rod passes through the screen and the sponge pad and is connected to the bottom end of the moving column, the right side surface of the receiving barrel is fixedly connected with a first limit plate, the left side surface of the receiving barrel is provided with a second limit plate, a feeding pipe is provided on one side of the surface of the receiving barrel, a first stabilizing plate is provided on one side of the surface of the second limit plate, a second stabilizing plate is provided on one side of the surface of the first limit plate, a buffer filter plate is connected between the first stabilizing plate and the second stabilizing plate, a leakage net is provided inside the buffer filter plate, and the bottom end of the receiving barrel is fixedly connected with an upper turntable.

[0008] Preferably, a rack is fixedly connected to the back of the top plate, a first gear is meshedly connected to the surface of the rack, a mounting shell is provided on the surface of the first gear, and the mounting shell is mounted on the top surface of the inner bottom wall of the second reaction cylinder.

[0009] Preferably, a first rotating shaft is provided on the right side surface of the first gear, an end of the first rotating shaft away from the first gear is fixedly connected to a first bevel gear, and a second bevel gear is meshedly connected to the surface of the first bevel gear.

[0010] Preferably, a first limit seat is provided at the bottom end of the second bevel gear, the surface of the first limit seat is meshedly connected with a first belt, a second rotating shaft is provided on the inner side wall of the first belt, and a second gear is provided on one side of the surface of the second rotating shaft.

[0011] Preferably, the surface of the second gear is meshedly connected with the third gear, the bottom end of the third gear is provided with a third rotating shaft, the bottom end surface of the third rotating shaft is provided with a second limit seat, and one side of the surface of the second limit seat is provided with a second belt.

[0012] Preferably, a third limiting shaft is provided on the outer surface of the second belt, a bearing body is provided on the top of the third limiting shaft, the second rotating shaft is installed inside the bearing body, the third limiting shaft is fixedly connected to the outer surface of the bearing body, a lower turntable is provided at the bottom end of the third limiting shaft, a rotating groove is provided on the top surface of the lower turntable, a rotating column is provided at the bottom end of the second limiting seat, and a ball is provided on the outer surface of the rotating column, and the ball and the rotating groove are adapted to each other.

[0013] Preferably, a support column is fixedly connected to the surface of the lower turntable, a support bearing is provided at the top end of the support column, and a flapping ring is provided at the top end of the support bearing.

[0014] Preferably, a mounting bearing seat is provided at the bottom end of the lower turntable, a movable rod is provided inside the mounting bearing seat, the movable rod is installed on the inner side wall of the mounting bearing seat, the bottom end of the movable rod is fixedly connected to a stabilizing frame, and the stabilizing frame is installed on the inner wall of the second reaction cylinder.

[0015] A process for preparing a pressure-sensitive adhesive suitable for adhesive tapes:

[0016] S1. First, by adding 10 to 30 parts by weight of a hard monomer, 60 to 90 parts of a soft monomer, 1 to 10 parts of a functional monomer and 80 to 120 parts of ethyl acetate to the interior of the second reaction tube and mixing and heating;

[0017] S2. The initiator solution is extracted into the interior of the first reaction cylinder by an infusion pump, and the initiator solution enters the interior of the second reaction cylinder through the first delivery tube, the interspersed cylinder and the receiving cylinder. When entering, the upper and lower turntables rotate in opposite directions, and the initiator solution is subjected to the reverse rotation force of the beating ring, which can break up the initiator solution and make the molecular weight distribution more uniform. At the same time, the same operation steps are performed for multiple groups of initiator solutions, and then the material is cooled to obtain an acrylate prepolymer;

[0018] S3. 100 parts by weight of an acrylate prepolymer, 0.2-0.5 parts of a curing agent, 0.5-3 parts of a silane coupling agent, and 75-95 parts of ethyl acetate are uniformly mixed to obtain a pressure-sensitive adhesive. The ethyl acetate is used as a diluent. 75-95 parts of ethyl acetate can adjust the viscosity of the pressure-sensitive adhesive to 750-1000 cP. 120 g of the acrylate prepolymer, 0.24 g of the curing agent, 0.6 g of the silane coupling agent, and 100 g of ethyl acetate are uniformly mixed at room temperature to obtain a pressure-sensitive adhesive.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The cam is driven by the gear train of the driver, and the gear train of the driver is driven by the gear train of the driver, and the gear train of the driver is driven by the gear train of the driver, and the gear train of the driver is driven by the gear train of the driver. The gears are engaged, and then the third limiting shaft can be driven to rotate through the design of the third rotating shaft, the second limiting seat and the second belt. The direction of rotation of the third limiting shaft is opposite to the direction of rotation of the second rotating shaft. The second rotating shaft and the upper turntable are fixedly connected, and the third limiting shaft and the lower turntable are fixedly connected. Through the design of the bearing body, the upper turntable and the lower turntable rotate in different directions, and during the rotation process, the rotating column, the ball and the rotating groove are adapted to each other. Therefore, when the lower turntable rotates, the rotating column and the second limiting seat will rotate stably inside the rotating groove, thereby not affecting its rotation. When the lower turntable and the upper turntable rotate in opposite directions, the initiator sprayed through the feed pipe will be beaten to a certain extent by the counter-rotating beating ring, so that the initiator can be dispersed on the surface of the solution inside the second reaction cylinder, and the inside of the second reaction cylinder is still evenly stirred, so that the internal solution fully reacts with the initiator, solving the previous problem of uneven molecular weight and reflecting the functionality of the design.

[0021] 2. The pressure-sensitive adhesive preparation device and process suitable for adhesive tape are provided with a top plate, a moving column, a sponge pad, a screen, an interlaced cylinder, a receiving cylinder, a torsion shaft, a sealing ring, a movable shaft, an insertion rod, a first limit plate, a second limit plate and a feeding pipe. When the moving column starts to descend, the initiator on the surface of the sponge pad is squeezed by the moving column, and then leaks into the interior of the interlaced cylinder through the screen. At this time, the moving column starts to descend and drives the insertion rod to descend, so that the sealing ring will tilt inside the interlaced cylinder, so that the initiator will be discharged quickly. When the moving column starts to rise, the sealing ring will quickly return to its original position, so that the discharge port can be quickly closed, thereby ensuring the effect of quantitative use of the initiator. At the same time, when the initiator enters the interior of the receiving cylinder, it flows out to a certain extent through the feeding pipe, and during the outflow process, it is buffered and fed to a certain extent by the buffer filter plate and the leakage screen, so that the initiator can be dripped more accurately, so that it can be beaten by the multiple sets of reversed beating rings, so that the initiator can be quickly beaten and dispersed, thereby increasing the local contact area. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the disassembly of the moving column and the receiving barrel structure of the present invention;

[0024] Figure 3 is a schematic cross-sectional view of the second reaction tube structure of the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of the motion column and rack structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the disassembly of the receiving cylinder, the lower turntable and the first gear structure of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the first gear and the second rotating shaft structure of the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the upper turntable and movable rod structure of the present invention;

[0029] Figure 8 For the present invention Figure 2 A magnified schematic diagram of the structure at center A.

[0030] In the figure: 1. Preparation box; 2. Control panel; 3. First reaction cylinder; 4. Feed cover; 5. Second reaction cylinder; 6. Electric push rod; 7. Top plate; 8. Moving column; 9. Sponge pad; 10. Screen; 11. Insertion cylinder; 12. Collection cylinder; 13. Torque shaft; 14. Sealing ring; 15. Movable shaft; 16. Insertion rod; 17. First limit plate; 18. Second limit plate; 19. Feed pipe; 20. First stabilizing plate; 21. Second stabilizing plate; 22. Buffer filter plate; 23. Upper turntable; 24. Rack; 25. First gear; 26 , first rotating shaft; 27, first bevel gear; 28, second bevel gear; 29, first limiting seat; 30, first belt; 31, second rotating shaft; 32, second gear; 33, third gear; 34, third rotating shaft; 35, second limiting seat; 36, second belt; 37, third limiting shaft; 38, bearing body; 39, lower turntable; 40, support column; 41, support bearing; 42, flapping ring; 43, mounting bearing seat; 44, movable rod; 45, stabilizing frame; 46, first delivery pipe; 47, infusion pump; 48, second delivery pipe. DETAILED DESCRIPTION

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

[0032] See also Figure 1-8 , an embodiment provided by the present invention:

[0033] A pressure-sensitive adhesive preparation device suitable for adhesive tape. The control panel 2 and electric push rod 6 used in this application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. The output end of the control panel 2 is electrically connected to the input end of the electric push rod 6 through a wire, comprising a preparation box 1, the left surface of the preparation box 1 is fixedly connected to the control panel 2, a first reaction cylinder 3 is provided inside the preparation box 1, a feed cover 4 is provided on the top of the first reaction cylinder 3, a second delivery pipe 48 is provided on the right surface of the first reaction cylinder 3, the second delivery pipe 48 is provided inside the first reaction cylinder 3, an infusion pump 47 is provided at one end of the second delivery pipe 48 away from the first reaction cylinder 3, a first delivery pipe 46 is provided on the right surface of the infusion pump 47, and a second reaction cylinder 5 is provided on the upper surface of the preparation box 1;

[0034] An electric push rod 6 is installed on the top of the second reaction cylinder 5. A top plate 7 is provided on the top of the electric push rod 6. A rack rack 24 is fixedly connected to the back of the top plate 7. The surface of the rack rack 24 is meshed with the first gear 25. A first rotating shaft 26 is provided on the right side surface of the first gear 25. An end of the first rotating shaft 26 away from the first gear 25 is fixedly connected to the first bevel gear 27. The surface of the first bevel gear 27 is meshed with the second bevel gear 28. A first limiting seat 29 is provided at the bottom end of the second bevel gear 28. The surface of the first limiting seat 29 is meshed with the first belt 30. The inner side wall of the first belt 30 is provided with a second rotating shaft 31. A second gear 32 is provided on one side of the surface of the second rotating shaft 31. The surface of the second gear 32 The third gear 33 is meshed with each other, and a third rotating shaft 34 is provided at the bottom end of the third gear 33. A second limiting seat 35 is provided on the bottom surface of the third rotating shaft 34. A second belt 36 is provided on one side of the surface of the second limiting seat 35. A third limiting shaft 37 is provided on the outer surface of the second belt 36. A bearing body 38 is provided on the top of the third limiting shaft 37. The second rotating shaft 31 is mounted inside the bearing body 38. The third limiting shaft 37 is fixedly connected to the outer surface of the bearing body 38. A lower turntable 39 is provided at the bottom end of the third limiting shaft 37. A bearing seat 43 is installed at the bottom end of the lower turntable 39. A movable rod 44 is provided inside the bearing seat 43. The movable rod 44 is mounted on the inner side wall of the bearing seat 43. The bottom of the movable rod 44 The end is fixedly connected with a stabilizing frame 45, and the stabilizing frame 45 is installed on the inner wall of the second reaction cylinder 5. The surface of the lower turntable 39 is fixedly connected with a support column 40, and the top of the support column 40 is provided with a support bearing 41, and the top of the support bearing 41 is provided with a slapping ring 42. The top surface of the lower turntable 39 is provided with a rotating groove, and the bottom end of the second limit seat 35 is provided with a rotating column, and the outer surface of the rotating column is provided with a ball, and the ball and the rotating groove are adapted to each other. The surface of the first gear 25 is provided with a mounting shell, and the mounting shell is installed on the top surface of the inner bottom wall of the second reaction cylinder 5. The right side surface of the top plate 7 is fixedly connected with a moving column 8, and the bottom end surface of the moving column 8 is provided with a sponge pad 9. The bottom end of the sponge pad 9 is provided with a screen 10, and the inner side wall of the screen 10 is provided with an interlaced tube 1 1. A feeding trough is provided on the left surface of the interpenetrating cylinder 11. The feeding trough and the first conveying pipe 46 are adapted to each other. The position of the feeding trough is at the same height as the top surface of the sponge pad 9. A receiving cylinder 12 is provided on the outer surface of the interpenetrating cylinder 11. A movable groove is provided on the inner side wall of the receiving cylinder 12. A torsion shaft 13 is provided inside the movable groove. A sealing ring 14 is provided on the left surface of the torsion shaft 13. A movable shaft 15 is provided on the surface of the sealing ring 14. An insertion rod 16 is provided on the surface of the movable shaft 15. The insertion rod 16 passes through the screen 10 and the sponge pad 9 and is connected to the bottom end of the moving column 8. A first limiting plate 17 is fixedly connected to the right surface of the receiving cylinder 12. A second limiting plate 18 is provided on the left surface of the receiving cylinder 12. A feeding pipe 19 is provided on one side of the surface of the receiving cylinder 12.A first stabilizing plate 20 is provided on one side of the surface of the second limiting plate 18, and a second stabilizing plate 21 is provided on one side of the surface of the first limiting plate 17. A buffer filter plate 22 is connected between the first stabilizing plate 20 and the second stabilizing plate 21, and a leakage net is provided inside the buffer filter plate 22. The bottom end of the receiving barrel 12 is fixedly connected to the upper turntable 23, and the initiator is transported to the inside of the sponge pad 9 through the design of the infusion pump 47, the second delivery pipe 48 and the first delivery pipe 46. The initiator is absorbed by the sponge pad 9 to a certain extent, and then the electric push rod 6 is started through the control panel 2, and the electric push rod 6 drives the top plate 7 to start squeezing downward, so that the bottom end of the moving column 8 will be squeezed to the surface of the sponge pad 9, and at this time the rack rack 24 will also move downward to a certain extent, and the rack rack 24 drives the first The gear 25 rotates, so that the first gear 25 will drive the first rotating shaft 26 and the first bevel gear 27 to rotate, and the first bevel gear 27 will drive the second bevel gear 28, the first limiting seat 29 and the first belt 30 to rotate, so that the first belt 30 will drive the second rotating shaft 31 to rotate as a whole. Due to the engagement between the second gear 32 and the third gear 33, the third limiting shaft 37 can be driven to rotate through the design of the third rotating shaft 34, the second limiting seat 35 and the second belt 36. The direction of rotation of the third limiting shaft 37 is opposite to the direction of rotation of the second rotating shaft 31. The second rotating shaft 31 is fixedly connected to the upper turntable 23, and the third limiting shaft 37 is fixedly connected to the lower turntable 39, and through the design of the bearing body 38 , the upper turntable 23 and the lower turntable 39 rotate in different directions, and during the rotation process, the rotating column, the ball and the rotating groove are adapted to each other, so when the lower turntable 39 rotates, the rotating column and the second limit seat 35 will rotate stably inside the rotating groove, thereby not affecting its rotation. When the lower turntable 39 and the upper turntable 23 rotate in opposite directions, the initiator sprayed through the feeding pipe 19 will be beaten to a certain extent by the counter-rotating beating ring 42, so that the initiator can be dispersed on the surface of the solution inside the second reaction cylinder 5, and the interior of the second reaction cylinder 5 is still stirred evenly, so that the internal solution fully reacts with the initiator, solving the problem of uneven molecular weight in the past. When the moving column 8 starts to descend, the initiator on the surface of the sponge pad 9 is squeezed by the moving column 8, and then The initiator will leak through the screen 10 into the inside of the insertion tube 11. At this time, the moving column 8 starts to descend, which will drive the insertion rod 16 to descend, so that the sealing ring 14 will tilt inside the insertion tube 11, so that the initiator will be discharged quickly. When the moving column 8 starts to rise, the sealing ring 14 will quickly return to its original position, so that the discharge port can be quickly closed, thereby ensuring the effect of quantitative use of the initiator. At the same time, when the initiator enters the inside of the receiving tube 12, it will flow out through the feeding pipe 19 to a certain extent, and in the process of flowing out, it will be buffered and fed to a certain extent by the buffer filter plate 22 and the leakage screen, so that the initiator can be dripped more accurately, so that it can be beaten by the reversed multiple groups of beating rings 42, so that the initiator can be quickly beaten and dispersed, thereby increasing the local contact area.

[0035] A process for preparing a pressure-sensitive adhesive suitable for adhesive tapes:

[0036] S1. First, by adding 10 to 30 parts by weight of a hard monomer, 60 to 90 parts of a soft monomer, 1 to 10 parts of a functional monomer and 80 to 120 parts of ethyl acetate to the interior of the second reaction tube 5 and mixing and heating;

[0037] S2. The initiator solution is extracted into the first reaction cylinder 3 by the infusion pump 47. The initiator solution enters the interior of the second reaction cylinder 5 through the first delivery tube 46, the interspersed cylinder 11 and the receiving cylinder 12. When entering, the upper turntable 23 and the lower turntable 39 rotate in opposite directions. The initiator solution is subjected to the reverse rotation force of the beating ring 42, which can break up the initiator solution and make the molecular weight distribution more uniform. At the same time, the same operation steps are performed for multiple groups of initiator solutions, and then the material is cooled and discharged to obtain an acrylate prepolymer;

[0038] S3. 100 parts by weight of an acrylate prepolymer, 0.2-0.5 parts of a curing agent, 0.5-3 parts of a silane coupling agent, and 75-95 parts of ethyl acetate are uniformly mixed to obtain a pressure-sensitive adhesive. The ethyl acetate is used as a diluent. 75-95 parts of ethyl acetate can adjust the viscosity of the pressure-sensitive adhesive to 750-1000 cP. 120 g of the acrylate prepolymer, 0.24 g of the curing agent, 0.6 g of the silane coupling agent, and 100 g of ethyl acetate are uniformly mixed at room temperature to obtain a pressure-sensitive adhesive.

[0039] Working principle: When the staff uses the device, first connect the device to an external power supply to provide power support for the device. When in use, first, the initiator is delivered to the inside of the sponge pad 9 through the design of the infusion pump 47, the second delivery tube 48 and the first delivery tube 46. The initiator is absorbed by the sponge pad 9 to a certain extent, and then the electric push rod 6 is started through the control panel 2. The electric push rod 6 drives the top plate 7 to start squeezing downward, so that the bottom end of the moving column 8 will be squeezed to the surface of the sponge pad 9, and at this time the rack rack 24 will also move downward to a certain extent, and the rack rack 24 drives the first gear 25 to rotate, so that the first gear 25 will drive the first rotating shaft 26 and the first bevel gear 27 to rotate, and the first bevel gear 2 7 will drive the second bevel gear 28, the first limiting seat 29 and the first belt 30 to rotate, so that the first belt 30 will drive the second rotating shaft 31 to rotate as a whole. Due to the meshing between the second gear 32 and the third gear 33, the third rotating shaft 34, the second limiting seat 35 and the second belt 36 can drive the third limiting shaft 37 to rotate. The direction of rotation of the third limiting shaft 37 is opposite to the direction of rotation of the second rotating shaft 31. The second rotating shaft 31 is fixedly connected to the upper turntable 23, and the third limiting shaft 37 is fixedly connected to the lower turntable 39. Through the design of the bearing body 38, the upper turntable 23 and the lower turntable 39 rotate in different directions, and rotate in the process of rotation. The moving column, the ball and the rotating groove are adapted to each other, so when the lower turntable 39 rotates, the rotating column and the second limit seat 35 will rotate stably inside the rotating groove, thereby not affecting its rotation. When the lower turntable 39 and the upper turntable 23 rotate in opposite directions, the initiator sprayed through the feeding pipe 19 will be beaten to a certain extent by the counter-rotating beating ring 42, so that the initiator can be dispersed on the surface of the solution inside the second reaction cylinder 5, and the interior of the second reaction cylinder 5 is still stirred evenly, so that the internal solution fully reacts with the initiator. When the moving column 8 starts to descend, the initiator on the surface of the sponge pad 9 is squeezed by the moving column 8, and then leaks into the interior of the interlaced cylinder 11 through the screen 10. At this time, the moving column 8 starts to descend. The insertion rod 16 is driven to descend, so that the sealing ring 14 will tilt inside the insertion tube 11, so that the initiator will be discharged quickly. When the moving column 8 starts to rise, the sealing ring 14 will quickly return to its original position, so that the discharge port can be quickly closed, so as to ensure the effect of quantitative use of the initiator. At the same time, when the initiator enters from the inside of the receiving tube 12, it flows out through the feeding pipe 19 to a certain extent, and in the process of outflow, it is buffered and fed to a certain extent through the buffer filter plate 22 and the leakage net, which can make the initiator drip more accurately, so that it can be beaten by the reversed multiple groups of beating rings 42, so that the initiator can be quickly beaten and the local contact area is increased. The above is all the working principles of the present invention.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pressure-sensitive adhesive preparation device suitable for adhesive tape, comprising a preparation box (1), a control panel (2) fixedly connected to the left side surface of the preparation box (1), a first reaction cylinder (3) arranged inside the preparation box (1), a feed cover (4) arranged at the top of the first reaction cylinder (3), a second delivery tube (48) arranged on the right side surface of the first reaction cylinder (3), the second delivery tube (48) arranged inside the first reaction cylinder (3), an infusion pump (47) arranged at one end of the second delivery tube (48) away from the first reaction cylinder (3), and a first delivery tube (46) arranged on the right side surface of the infusion pump (47), characterized in that: A second reaction cylinder (5) is provided on the upper surface of the preparation box (1); An electric push rod (6) is mounted on the top of the second reaction cylinder (5); a top plate (7) is provided on the top of the electric push rod (6); a moving column (8) is fixedly connected to the right side surface of the top plate (7); a sponge pad (9) is provided on the bottom surface of the moving column (8); a screen (10) is provided at the bottom end of the sponge pad (9); an interpenetrating cylinder (11) is provided on the inner side wall of the screen (10); a feed groove is provided on the left side surface of the interpenetrating cylinder (11); the feed groove and the first conveying pipe (46) are adapted to each other; the position of the feed groove is at the same height as the top surface of the sponge pad (9); a receiving cylinder (12) is provided on the outer surface of the interpenetrating cylinder (11); a movable groove is provided on the inner side wall of the receiving cylinder (12); a torsion shaft (13) is provided inside the movable groove; a sealing ring (14) is provided on the left side surface of the torsion shaft (13); the sealing ring (14) is provided on the outer surface of the interpenetrating cylinder (11); A movable shaft (15) is arranged on the surface of the sealing ring (14), and an insertion rod (16) is arranged on the surface of the movable shaft (15). The insertion rod (16) passes through the screen (10) and the sponge pad (9) and is connected to the bottom end of the moving column (8). A first limiting plate (17) is fixedly connected to the right side surface of the receiving barrel (12), and a second limiting plate (18) is arranged on the left side surface of the receiving barrel (12). A feeding pipe (19) is arranged on one side of the surface of the receiving barrel (12), a first stabilizing plate (20) is arranged on one side of the surface of the second limiting plate (18), and a second stabilizing plate (21) is arranged on one side of the surface of the first limiting plate (17). A buffer filter plate (22) is connected between the first stabilizing plate (20) and the second stabilizing plate (21), and a filter screen is arranged inside the buffer filter plate (22). An upper turntable (23) is fixedly connected to the bottom end of the receiving barrel (12).

2. A pressure-sensitive adhesive preparation device suitable for adhesive tape according to claim 1, characterized in that: The back side of the top plate (7) is fixedly connected to a rack frame (24), the surface of the rack frame (24) is meshingly connected to a first gear (25), the surface of the first gear (25) is provided with a mounting shell, and the mounting shell is mounted on the top surface of the inner bottom wall of the second reaction cylinder (5).

3. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 2, characterized in that: A first rotating shaft (26) is provided on the right side surface of the first gear (25); an end of the first rotating shaft (26) away from the first gear (25) is fixedly connected to a first bevel gear (27); and a surface of the first bevel gear (27) is meshingly connected to a second bevel gear (28).

4. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 3, characterized in that: A first limiting seat (29) is provided at the bottom end of the second bevel gear (28); a first belt (30) is meshedly connected to the surface of the first limiting seat (29); a second rotating shaft (31) is provided on the inner side wall of the first belt (30); and a second gear (32) is provided on one side of the surface of the second rotating shaft (31).

5. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 4, characterized in that: The surface of the second gear (32) is meshingly connected with a third gear (33); a third rotating shaft (34) is provided at the bottom end of the third gear (33); a second limiting seat (35) is provided on the bottom end surface of the third rotating shaft (34); and a second belt (36) is provided on one side of the surface of the second limiting seat (35).

6. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 5, characterized in that: The outer surface of the second belt (36) is provided with a third limiting shaft (37), the top end of the third limiting shaft (37) is provided with a bearing body (38), the second rotating shaft (31) is installed inside the bearing body (38), the third limiting shaft (37) is fixedly connected to the outer surface of the bearing body (38), the bottom end of the third limiting shaft (37) is provided with a lower turntable (39), the top surface of the lower turntable (39) is provided with a rotating groove, the bottom end of the second limiting seat (35) is provided with a rotating column, the outer surface of the rotating column is provided with a ball, and the ball and the rotating groove are adapted to each other.

7. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 6, characterized in that: A support column (40) is fixedly connected to the surface of the lower rotating disk (39), a support bearing (41) is provided at the top end of the support column (40), and a flapping ring (42) is provided at the top end of the support bearing (41).

8. The device for preparing a pressure-sensitive adhesive for an adhesive tape according to claim 7, characterized in that: A mounting bearing seat (43) is provided at the bottom end of the lower turntable (39), a movable rod (44) is provided inside the mounting bearing seat (43), the movable rod (44) is mounted on the inner side wall of the mounting bearing seat (43), the bottom end of the movable rod (44) is fixedly connected to a stabilizing frame (45), and the stabilizing frame (45) is mounted on the inner wall of the second reaction cylinder (5).

9. A process for preparing a pressure-sensitive adhesive for an adhesive tape, using a device for preparing a pressure-sensitive adhesive for an adhesive tape according to any one of claims 1 to 8, characterized in that: S1. First, 10 to 30 parts by weight of a hard monomer, 60 to 90 parts by weight of a soft monomer, 1 to 10 parts by weight of a functional monomer and 80 to 120 parts by weight of ethyl acetate are added to the interior of a second reaction tube (5) and mixed and heated; S2. The initiator solution is drawn into the first reaction cylinder (3) through the infusion pump (47), and the initiator solution enters the second reaction cylinder (5) through the first delivery tube (46), the insertion cylinder (11) and the receiving cylinder (12). When entering, the initiator solution is subjected to the reverse rotation force of the beating ring (42) by the upper turntable (23) and the lower turntable (39) rotating in opposite directions, and the initiator solution can be dispersed to obtain a relatively uniform molecular weight distribution. At the same time, the operation steps of multiple groups of initiator solutions are the same, and then the temperature is reduced and the material is discharged to obtain an acrylate prepolymer; S3. Evenly mix 100 parts of acrylate prepolymer, 0.2-0.5 parts of curing agent, 0.5-3 parts of silane coupling agent and 75-95 parts of ethyl acetate in parts by weight to obtain a pressure-sensitive adhesive. The ethyl acetate is used as a diluent solvent. The 75-95 parts of ethyl acetate adjusts the viscosity of the pressure-sensitive adhesive to 750-1000 cP. Evenly mix 120g of acrylate prepolymer, 0.24g of curing agent, 0.6g of silane coupling agent and 100g of ethyl acetate at room temperature to obtain a pressure-sensitive adhesive.

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