Hydrophilic resin continuous preparation system

Abstract

The present application provides a continuous preparation system for a hydrophilic resin, and belongs to the technical field of preparation of hydrophilic resins. In view of the problem that hydrophilic resins cannot be prepared in a closed and continuous manner, the present application provides a continuous preparation system for a hydrophilic resin, including a film roll unit, a film tape buffer unit, a filling unit, and a continuous polymerization reaction unit connected in sequence. The present application cooperates with the film roll unit and the film tape buffer unit to realize continuous, stable, and reliable provision of film tapes to the filling unit to form continuous reaction bags, thereby filling to form closed and continuous reaction materials, and then realizing continuous polymerization reactions through the continuous polymerization reaction unit, thereby realizing closed and continuous preparation of hydrophilic resins.

Description

Technical Field

[0001] The present application relates to the technical field of hydrophilic resin preparation, and in particular to a hydrophilic resin continuous preparation system. Background Art

[0002] Polymerization is an important method for preparing hydrophilic resins, that is, the hydrophilic resin is generated by converting the liquid phase of the polymerization monomer reaction liquid into a gel solid phase. This preparation method is usually produced using an open belt reactor or a closed kettle polymerization device. The belt reactor has a lower production cost, but the open environment will cause a large amount of waste gas pollution, affecting safety and polluting the environment; although the kettle polymerization device is a closed environment, which can avoid waste gas pollution, the high temperature and high pressure environment in the reactor is prone to explosion, posing a high safety risk; and the above two types of equipment for preparing hydrophilic resins cannot produce continuously, and the production capacity is affected by the batch time. Summary of the invention

[0003] The purpose of the present application is to solve the problem in the prior art that hydrophilic resin cannot be prepared in a closed and continuous manner. Therefore, the present application provides a hydrophilic resin continuous preparation system, which realizes continuous, stable and reliable provision of film strips to the filling unit to form continuous reaction bags through the cooperation of the film roll unit and the film strip buffer unit, thereby filling to form a closed and continuous reaction material, and then realizing continuous polymerization reaction through the continuous polymerization reaction unit, thereby realizing closed and continuous preparation of hydrophilic resin.

[0004] The embodiment of the present application provides a hydrophilic resin continuous preparation system, comprising a film roll unit, a film tape buffer unit, a filling unit and a continuous polymerization reaction unit connected in sequence;

[0005] The film roll unit is used to provide the film tape to the filling unit via the film tape buffer unit;

[0006] A film splicing device is provided between the film roll unit and the feed port of the film tape buffer unit, the film tape of the film roll unit passes through the film splicing device and is connected to the feed port of the film tape buffer unit, and the film splicing device can clamp the film tape;

[0007] The filling unit is arranged corresponding to the discharge port of the film tape buffer unit, and the filling unit continuously pulls the film tape at the discharge port to form continuous reaction bags, and continuously fills the reaction bags to form continuous reaction materials;

[0008] The continuous polymerization reaction unit is used to continuously receive the reaction material and polymerize the reaction liquid in the reaction material into a hydrophilic resin; wherein the film tape buffer unit includes a plurality of movable conveying rollers distributed on both sides of a first straight line, and the rotation axes of the conveying rollers are parallel to each other and perpendicular to the first straight line; wherein the first straight line is a line connecting a feed port and a discharge port of the film tape buffer unit;

[0009] The film belt is in a Z shape and passes around the plurality of conveying rollers on both sides of the first straight line in sequence;

[0010] The film tape buffer unit has a first state and a second state, and in the first state, the film splicing device is not clamped, and the plurality of conveying rollers apply tension to the film tape, so that the film tape is continuously transmitted to the discharge port of the film tape buffer unit with a preset tension;

[0011] In the second state, the film joining device is clamped, and at least one of the conveying rollers moves toward the first straight line, so that the film tape is continuously transmitted to the discharge port of the film tape buffer unit while maintaining the preset tension.

[0012] By adopting the above technical scheme, film tape storage is achieved through multiple conveying rollers in the film tape buffer unit. When the film roll unit is splicing and cannot supply material, the conveying rollers are moved to release the stored material, so as to provide the filling unit with film tape continuously, stably and reliably to form continuous reaction bags, which are then filled to form closed and continuous reaction materials, and then continuous polymerization reactions are carried out through the continuous polymerization reaction unit, thereby realizing the closed and continuous preparation of hydrophilic resin.

[0013] In some embodiments, both ends of the conveying roller are slidably disposed on the guide rail and are connected to independent driving members to drive the conveying roller to slide on the guide rail;

[0014] The extending direction of each guide rail is perpendicular to the first straight line.

[0015] By adopting the above technical scheme, the reliability of the movement of the conveying roller is improved by the guide rail, thereby improving the reliability of the release of the stored material, ensuring that the film strip is continuously transmitted with a preset tension force, maintaining the normal progress of the subsequent process, and realizing the closed and continuous preparation of the hydrophilic resin; by connecting each conveying roller with an independent driving member, each conveying roller can be independently controlled and moved, thereby further improving the reliability of the movement of the conveying roller; by setting the guide rail extension direction perpendicular to the first straight line, ensuring that the conveying roller moves in a direction perpendicular to the first straight line, reducing the difficulty of controlling the conveying roller movement distance and the stock release ratio, thereby further improving the reliability of the stock release.

[0016] In some embodiments, it further includes a control unit connected to each of the driving members;

[0017] When the first state is switched to the second state, the control unit controls at least one of the conveying rollers close to the feed port of the film tape buffer unit to move a first distance toward the first straight line;

[0018] In the second state, the control unit controls at least one of the conveying rollers to move toward the first straight line, so that the film tape at the discharge port of the film tape buffer unit is continuously fed;

[0019] When the second state switches to the first state, the control unit controls at least one of the conveying rollers near the feed port of the membrane tape buffer unit to move away from the first straight line a second distance; then, controls at least one of the conveying rollers to move away from the first straight line until all of the conveying rollers move to the end of the corresponding guide rail away from the first straight line.

[0020] By adopting the above technical solution, when the state is switched, the tension of the membrane tape can be quickly adjusted by moving the conveying roller near the membrane tape state conversion point (i.e., near the feed port of the membrane tape buffer unit) to prevent it from being transmitted to subsequent membrane tapes and affecting the overall process flow.

[0021] In some embodiments, in the second state, the control unit controls the plurality of conveying rollers to move toward the first straight line in sequence from near to far from the discharge port of the film tape buffer unit, and when the previous conveying roller moves to the first straight line, the next conveying roller moves, so that the film tape at the discharge port of the film tape buffer unit is continuously fed.

[0022] By adopting the above technical solution, in the second state, the conveying rollers close to the discharge port move in sequence, so that the tension of the discharge film belt can be adjusted quickly and accurately, ensuring the normal progress of the subsequent filling process.

[0023] In some embodiments, the film splicing device includes a heat sealing device, a first guide component disposed between a discharge port of the film roll unit and the heat sealing device, and a second guide component disposed between the heat sealing device and a feed port of the film tape buffer unit;

[0024] The first guide assembly comprises two first guide rollers arranged opposite to each other, the two first guide rollers are used to guide the film strip outputted by the film roll unit to the heat sealing device in the first state, and to guide the plurality of film strips outputted by the film roll unit to the heat sealing device in the second state, and to make the plurality of film strips overlap;

[0025] The heat sealing device is used to clamp and heat-seal the parts of the plurality of film strips located in the heat sealing device into one in the second state;

[0026] The second guide assembly includes a second guide roller, and the second guide roller is used to guide the film tape at the discharge port of the heat sealing device to the feed port of the film tape buffer unit.

[0027] By adopting the above technical solution, the clamping and heat-sealing film are realized by the heat-sealing equipment, and the film-sealing effect is improved by the first guide component and the second guide component, thereby improving the feeding quality and ensuring the production quality.

[0028] In some embodiments, the film roll unit includes a plurality of film roll fixing members, driving members corresponding one-to-one to the plurality of film roll fixing members, and abutting members corresponding one-to-one to the driving members;

[0029] The film roll fixing member is used to connect the film roll, and the film roll is a film tape stored in a roll;

[0030] The driving member is kept in contact with the edge of the film roll through the abutment member, and drives the film roll to rotate so as to unfold the film strip.

[0031] By adopting the above technical scheme, multiple film rolls can be connected at the same time through multiple film roll fixings, thereby shortening the film splicing time and improving production efficiency, and also reducing the film tape storage length of the film tape buffer unit, thereby controlling the volume of the film tape buffer unit and improving control reliability; and, the film roll is directly driven to rotate and unwind through the driving member, which can directly adapt to different types of film rolls compared to the conventional method of driving the film roll to rotate through the film roll fixing, has high versatility and effectively controls costs.

[0032] In some embodiments, the filling unit includes a filling tube and a film bag forming assembly;

[0033] The film bag forming assembly is used to continuously receive the film strip and form the reaction bag by connecting two sides of the film strip in the length direction;

[0034] The filling tube extends into the film bag forming assembly and continuously fills the reaction bag.

[0035] The above technical solution is adopted to realize the preparation of a closed and continuous reaction bag, and in combination with continuous filling, a closed and continuous reaction material is prepared, thereby providing a basis for the closed and continuous preparation of hydrophilic resin.

[0036] In some embodiments, the film bag forming assembly includes a film bag forming mold, a film clamping device, a plurality of rolling sealing devices, and a transverse sealing device sequentially arranged along the filling direction;

[0037] The film bag forming mold is trumpet-shaped and covers the circumference of the filling tube, and is used to guide the two sides of the film strip in the length direction to cover the circumference of the filling tube;

[0038] The film clamping device is used to guide the two sides of the film strip in the length direction to fit together;

[0039] The rolling sealing device is used to continuously pull and fix the side edges of the film tape after bonding;

[0040] The transverse sealing device is used to fix and connect the bottom of the film strip after both sides are fixed to form the reaction bag.

[0041] By adopting the above technical scheme, the two sides of the film strip in the length direction are first guided to fit together through the film clamping device, and then the edge is sealed by the rolling sealing equipment, which improves the flatness of the edge sealing, thereby improving the firmness of the edge sealing, and further improving the quality of the reaction bag, providing a basis for continuous filling; moreover, multiple rolling sealing devices can realize alternating operation to achieve redundant backup, avoid the need to shut down the rolling sealing equipment due to damage, and realize continuous and reliable bag making and filling, providing a basis for the closed and continuous preparation of hydrophilic resins.

[0042] In some embodiments, the rolling sealing device includes two rolling heat sealing components disposed opposite to each other;

[0043] The rolling heat sealing assembly includes a driving wheel, a driven wheel and a conveyor belt wound around the two wheels. At least one of the driving wheel and the driven wheel is provided with a heating element and is used for continuously pulling and heat-sealing the side edges of the film strip after bonding.

[0044] By adopting the above technical solution, the limiting distance of the pulling and conveying of the film strip (reaction bag) by the rolling sealing equipment is increased through the conveyor belt, thereby improving the stability and reliability of the film strip (reaction bag) conveying, providing a stable environment for filling, and thus ensuring stable and reliable filling; and the heating element transfers heat to the conveyor belt through the driving wheel or the driven wheel, which increases the heat sealing distance, further improves the edge sealing firmness, and thus improves the quality of the reaction bag, providing a basis for achieving the closed and continuous preparation of hydrophilic resin.

[0045] In some embodiments, the continuous polymerization reaction unit includes a first polymerization conveying line, and a first ultraviolet lamp, an exhaust pipe, and a cooling device disposed above the first polymerization conveying line;

[0046] The first polymerization conveying line is arranged corresponding to the discharge port of the filling unit and is used to continuously move and polymerize the reaction liquid in the reaction material to form a hydrophilic resin under the irradiation of the first ultraviolet lamp;

[0047] The exhaust pipe is provided with a plurality of exhaust ports toward the first polymerization conveying line, and the exhaust ports are located above the first ultraviolet lamp;

[0048] The cooling device is arranged corresponding to the first ultraviolet lamp and is used to cool the first ultraviolet lamp;

[0049] The filling unit is also connected to an acid-base mixing unit, and the continuous polymerization reaction unit is also connected to a leveling unit, an unpacking unit, a stripping unit and a cutting unit.

[0050] By adopting the above technical scheme, the first polymerization conveying line and the first ultraviolet lamp cooperate to continuously receive the continuous reaction material generated by the filling unit, and polymerize it to generate hydrophilic resin; and temperature control is achieved through the exhaust pipe and cooling equipment, thereby improving the polymerization reaction effect.

[0051] In some embodiments, the first guide assembly, the heat sealing device, and the second guide assembly are located on the same straight line.

[0052] In some embodiments, the abutment member is a pneumatic rod; and the driving member is an electric roller.

[0053] In some embodiments, the filling tube is arranged vertically, and the filling direction is the direction of gravity.

[0054] In some embodiments, one of the driving wheel and the driven wheel close to the film clamping device is provided with a heating element.

[0055] In some embodiments, the film clamping device includes two clamping plates arranged opposite to each other, wherein the clamping plates have a first length along the filling direction and extend to the feed port of the rolling sealing device that is closest to the film clamping device.

[0056] In some embodiments, the end of the filling tube is located at the level of the feed port of the film clamping device.

[0057] In some embodiments, the first polymer conveyor line is provided with multiple layers, and the multiple layers of the first polymer conveyor lines are arranged in sequence along the height direction, and a flipping component is provided between adjacent first polymer conveyor lines, and the flipping component is used to flip and move the continuous bagged reaction liquid between two adjacent first polymer conveyor lines, so that the front and back sides of the continuous bagged reaction liquid are alternately placed on two adjacent first polymer conveyor lines.

[0058] In some embodiments, the flipping assembly includes a guide roller, which is connected to a motor and rotates under the drive of the motor, so that the continuously bagged reaction liquid is flipped from the lower first polymerization conveyor line through the drum surface of the guide roller and moved to the upper first polymerization conveyor line.

[0059] In some embodiments, the flipping assembly also includes a guide plate and a limit plate, the guide plate having an arc-shaped guide surface adapted to the cylinder surface of the guide roller, the guide surface of the guide plate and the cylinder surface of the guide roller being used to cooperate with each other to clamp the continuously bagged reaction liquid; the limit plate is arranged at both ends of the guide roller and connected to the edge of the guide surface of the guide plate.

[0060] In some embodiments, the conveying surface of the first polymer conveying line is provided with a plurality of heat dissipation holes.

[0061] In some embodiments, corridors are set up on the sides of each floor of the first polymer conveyor line, and multiple layers of corridors are connected by stairs, and the stairs are set at the end of the first polymer conveyor line on each floor.

[0062] In some embodiments, a stabilization unit is connected to the front end of the bottom layer of the first polymerization conveyor line, and the stabilization unit includes a second polymerization conveyor line and a second ultraviolet lamp arranged above the second polymerization conveyor line.

[0063] In some embodiments, a plurality of the first ultraviolet lamps are provided, and the plurality of the first ultraviolet lamps are arranged in sequence along the length direction of the first polymerization conveying line;

[0064] The width of the first ultraviolet lamp is adapted to the width of the first polymerization conveying line.

[0065] In some embodiments, it further includes a flattening unit and a plurality of unpacking units connected in sequence;

[0066] The flattening unit comprises a first flattening conveying line and a pressing member, wherein the pressing member is arranged above the first flattening conveying line and is used to flatten the material on the first flattening conveying line;

[0067] The multiple unpacking units operate alternately, and the unpacking unit located at the front end of the multiple unpacking units is arranged corresponding to the discharge port of the flattening unit; the unpacking unit includes a second unpacking conveyor line and a cutting assembly and a film rolling assembly are arranged in sequence along the conveying direction of the second unpacking conveyor line;

[0068] The cutting assembly comprises two cutting knives respectively arranged on both sides of the second unpacking conveyor line, and the cutting knives are used to cut the packaging bag of the material from the side of the material, so that the packaging bag of the material forms an upper film and a lower film;

[0069] The film rolling assembly includes an upper film rolling device and a lower film rolling device respectively arranged above and below the second unpacking conveyor line, the upper film rolling device is used for rolling up the upper film, and the lower film rolling device is used for rolling up the lower film.

[0070] In some embodiments, the cutting assembly of the unpacking unit located at the frontmost end of the plurality of unpacking units is disposed near the end of the first leveling conveying line;

[0071] The cutting assembly of the adjacent unpacking unit is arranged close to the end of the second unpacking conveying line of the previous unpacking unit.

[0072] In some embodiments, there are two of the plurality of unpacking units.

[0073] In some embodiments, the pressing member is a third leveling conveyor line inclined toward the end of the first leveling conveyor line;

[0074] The third leveling conveyor line and the first leveling conveyor line jointly clamp the material and convey it toward the unpacking unit.

[0075] In some embodiments, the driving wheel of the first leveling conveyor line and the driving wheel of the third leveling conveyor line are both arranged close to the unpacking unit, and the driving wheel of the first leveling conveyor line and the driving wheel of the third leveling conveyor line are arranged opposite to each other in the vertical direction.

[0076] In some embodiments, the cutting knife is retractable to move closer to or farther away from the material on the first leveling conveyor line or the second unpacking conveyor line.

[0077] In some embodiments, the film rolling device includes a film roll fixing member, a driving member, and an abutment member;

[0078] The film roll fixing member is used to connect the film roll shaft;

[0079] The driving member is connected to the abutting member and is kept in contact with the surface of the film roll shaft on the film roll fixing member through the abutting member. The film roll shaft on the film roll fixing member rotates and reels the upper film under the drive of the driving member.

[0080] In some embodiments, the film rolling device also includes a mounting seat, the film roll fixing member is arranged on the mounting seat, the abutment member is rotatably arranged on the mounting seat, the driving member is arranged at the end of the abutment member away from the mounting seat, and the abutment member is connected to a torsion spring, and the torsion spring applies a torsional force toward the film roll fixing member to the driving member, so that the driving member has a tendency to fit the surface of the film roll shaft on the film roll fixing member.

[0081] In some embodiments, it further comprises a striping unit and a cutting unit arranged corresponding to the outlet of the striping unit;

[0082] The stripping unit comprises a first stripping conveying line, a first pressing member arranged above the first stripping conveying line, and a cutting assembly, a limiting area for clamping and conveying a continuous rubber block is formed between the first pressing member and the first stripping conveying line, the cutting assembly is arranged corresponding to the outlet of the limiting area, and the cutting assembly comprises a plurality of first cutters arranged in sequence along the width direction of the first stripping conveying line, the blades of the plurality of first cutters are parallel to the length direction of the continuous rubber block to strip it;

[0083] The dicing unit comprises a second dicing conveying line for intermittent conveying, at the end of which a second cutter is arranged, the second cutter can be intermittently moved in a vertical direction, and the blade of the second cutter is parallel to the width direction of the continuous rubber block to cut it into blocks.

[0084] In some embodiments, the block cutting unit further includes a second pressing member, which is disposed above the end of the second block cutting conveying line and cooperates with the end of the second block cutting conveying line to clamp the continuous rubber block.

[0085] In some embodiments, the second cutter is inclined relative to the plane where the conveying surface of the second slicing conveyor line is located, and the inclination angle is an acute angle.

[0086] In some embodiments, the second cutter is connected to a transmission rod, the end of the transmission rod facing away from the second cutter abuts against an eccentric wheel, the eccentric wheel is connected to a motor, and the rotation of the eccentric wheel drives the second cutter to move intermittently in a vertical direction through the transmission rod.

[0087] In some embodiments, the first pressing member is a third strip conveying line, the third strip conveying line is arranged in parallel with the first strip conveying line, and the end of the third strip conveying line is arranged close to the end of the first strip conveying line.

[0088] In some embodiments, a pressure rod is connected to one end of the first pressing member close to the cutting assembly, and the pressure rod applies pressure to the corresponding end of the first pressing member toward the first slitting conveying line.

[0089] In some embodiments, the first cutter is a circular roller cutter, and the plurality of first cutters are connected to the same rotating shaft, and the rotating shaft is connected to a roller cutter motor.

[0090] In some embodiments, the second pressing member is a fourth dicing conveying line inclined toward the end of the second dicing conveying line;

[0091] The fourth block-cutting conveying line and the second block-cutting conveying line jointly clamp and convey the continuous rubber block toward the second cutter.

[0092] In some embodiments, the first stripping conveyor line and the second cutting conveyor line are both chain plate structures.

[0093] In some embodiments, an acid-base mixing unit is further included, including a mixing tank and an alkali liquid tank, the alkali liquid tank is connected to an infusion component, and the alkali liquid is transported into the mixing tank through the infusion component, the mixing tank is used to pre-store acid liquid, and the mixing tank is connected to a heat exchanger;

[0094] The heat exchanger is connected to the mixing tank and is used for circulating heat exchange of the liquid in the mixing tank. The circulation outlet of the heat exchanger is located inside the mixing tank and is arranged close to the top of the mixing tank. A diffuser plate is arranged corresponding to the circulation outlet.

[0095] The infusion outlet of the infusion assembly is located inside the mixing tank, close to and above the diffuser plate.

[0096] In some embodiments, the infusion outlet of the infusion assembly is provided with a liquid limiting member, the liquid limiting member is in the shape of an inverted funnel, and the liquid limiting member is located within the range of the orthographic projection of the diffuser plate in the vertical direction.

[0097] In some embodiments, the diffuser plate is arranged at an angle, and the highest point is located directly below the circulation outlet.

[0098] In some embodiments, the diffuser plate is a fan-shaped plate, and the center of the diffuser plate is the highest point of the diffuser plate.

[0099] In some embodiments, the heat exchanger is connected to a circulation output pipe, the circulation output pipe extends into the mixing tank, and the end of the circulation output pipe is the circulation outlet of the heat exchanger, and the diffuser plate is provided.

[0100] In some embodiments, the infusion assembly includes an infusion tube, one end of which is connected to the alkali liquid tank, and the other end extends into the mixing tank. The end of the infusion tube is the infusion outlet of the infusion assembly, and the liquid limiting component is provided at the end of the infusion tube.

[0101] In some embodiments, the infusion tube is connected to a regulating valve.

[0102] In some embodiments, a stirring mechanism is provided in the mixing tank.

[0103] In some embodiments, the outside of the mixing tank is coated with a jacketed coil cooling device.

[0104] Beneficial effects:

[0105] The present application realizes film tape storage through multiple conveying rollers in the film tape buffer unit, so that when the film roll unit is unable to supply material during film splicing, the conveying rollers are moved to release the stored material, thereby realizing the continuous, stable and reliable supply of film tape to the filling unit to form continuous reaction bags, which are then filled to form closed and continuous reaction materials, and then continuous polymerization reactions are realized through the continuous polymerization reaction unit, thereby realizing the closed and continuous preparation of hydrophilic resin.

[0106] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the records in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0107] Figure 1 A schematic diagram of the structure of a film roll unit, a film splicing device, a film tape buffer unit and a filling unit provided in Example 1 of the present application;

[0108] Figure 2 A schematic side view of the filling unit provided in Example 1 of the present application;

[0109] Figure 3 A schematic diagram of the structure of a continuous polymerization reaction unit provided in Example 2 of the present application;

[0110] Figure 4 A schematic diagram of the top view of the continuous polymerization reaction unit provided in Example 2 of the present application;

[0111] Figure 5 A schematic side view of the structure of a continuous polymerization reaction unit provided in Example 2 of the present application;

[0112] Figure 6 A schematic diagram of the structure of a flattening unit and an unpacking unit provided in Example 3 of the present application;

[0113] Figure 7 A schematic diagram of the structure of the striping unit and the cutting unit provided in Example 4 of the present application;

[0114] Figure 8 A schematic diagram of the structure of the acid-base mixing unit provided in Example 5 of the present application;

[0115] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of part A at another angle;

[0116] Fig.10 for Fig. 9 Schematic diagram of the top view structure.

[0117] Description of reference numerals: 1, film roll; 2, film tape; 3, upper film; 4, lower film;

[0118] 100, film roll unit; 110, film roll fixing member; 120, driving member; 130, abutting member; 140, first roller group; 150, second roller group; 160, third roller group;

[0119] 200, film joining device; 210, heat sealing device; 220, first guide roller; 230, second guide roller;

[0120] 300, film tape buffer unit; 310, conveying roller; 320, guide rail;

[0121] 400, filling unit; 410, filling tube; 420, film bag forming mold; 430, film clamping device; 431, clamping plate; 440, rolling sealing device; 441, driving wheel; 442, driven wheel; 443, conveyor belt; 450, transverse sealing device;

[0122] 500, continuous polymerization reaction unit; 510, first polymerization conveyor line; 511, driving motor; 520, first ultraviolet lamp; 530, exhaust pipe; 531, exhaust port; 540, turning assembly; 541, guide roller; 542, guide plate; 543, limit plate; 550, corridor; 551, guardrail; 560, stairs; 570, second polymerization conveyor line;

[0123] 600, leveling unit; 610, first leveling conveying line; 620, pressing member;

[0124] 700, unpacking unit; 710, second unpacking conveyor line; 720, cutting knife; 730, upper film rolling device; 731, mounting seat; 740, lower film rolling device;

[0125] 800, slitting unit; 810, first slitting conveying line; 820, first pressing member; 821, pressing rod; 830, first cutting knife; 831, hob motor;

[0126] 900, cutting unit; 910, second cutting conveying line; 920, second pressing member; 930, second cutting knife; 931, transmission rod; 932, eccentric wheel;

[0127] 1000, acid-base mixing unit; 1100, mixing tank; 1110, stirring mechanism; 1120, jacketed coil cooling equipment; 1200, alkali liquid tank; 1300, heat exchanger; 1310, circulation output pipe; 1320, circulation input pipe; 1321, reflux pump; 1400, diffuser plate; 1500, liquid limiting part; 1600, infusion pipe; 1610, regulating valve. DETAILED DESCRIPTION

[0128] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0129] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, the meaning of "multiple" is two or more. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0130] Embodiment 1:

[0131] An embodiment of the present application provides a continuous preparation system for a hydrophilic resin, comprising a film roll unit 100, a film tape buffer unit 300, a filling unit 400 and a continuous polymerization reaction unit 500 connected in sequence. The film roll unit 100 and the film tape buffer unit 300 cooperate to provide the filling unit 400 with a continuous, stable and reliable supply of film tape 2 to form a continuous reaction bag, thereby filling to form a closed and continuous reaction material, and then a continuous polymerization reaction is achieved through the continuous polymerization reaction unit 500, thereby achieving closed and continuous preparation of the hydrophilic resin.

[0132] See also Figure 1 , Figure 1 This is a schematic structural diagram of the film roll unit 100, the film splicing device 200, the film tape buffer unit 300 and the filling unit 400 provided in Example 1 of the present application.

[0133] In one embodiment, the film roll unit 100 is used to provide the film tape 2 to the filling unit 400 via the film tape buffer unit 300 .

[0134] A film splicing device 200 is provided between the film roll unit 100 and the feed port of the film tape buffer unit 300 . The film tape 2 of the film roll unit 100 passes through the film splicing device 200 and is connected to the feed port of the film tape buffer unit 300 . The film splicing device 200 can clamp the film tape 2 .

[0135] The filling unit 400 is arranged corresponding to the discharge port of the film tape buffer unit 300 , and the filling unit 400 continuously pulls the film tape 2 at the discharge port to form continuous reaction bags, and continuously fills the reaction bags to form continuous reaction materials.

[0136] The continuous polymerization reaction unit 500 is used to continuously receive the reaction material and polymerize the reaction liquid in the reaction material into a hydrophilic resin, for example, by UV polymerization to prepare the hydrophilic resin.

[0137] In one embodiment, the film tape buffer unit 300 includes a plurality of movable conveying rollers 310 distributed on both sides of a first straight line, and the rotation axes of the conveying rollers 310 are parallel to each other and perpendicular to the first straight line. The first straight line is a line connecting the feed port and the discharge port of the film tape buffer unit 300.

[0138] The film tape 2 is in a Z-shape and passes around the plurality of conveying rollers 310 on both sides of the first straight line in sequence.

[0139] The film tape buffer unit 300 has a first state and a second state, and in the first state, the film splicing device 200 is not clamped, and the plurality of conveying rollers 310 apply tension to the film tape 2, so that the film tape 2 is continuously transmitted to the discharge port of the film tape buffer unit 300 with a preset tension, and a certain length of the film tape 2 is stored from the distance between the plurality of conveying rollers 310;

[0140] In the second state, the film splicing device 200 is clamped, and at least one conveying roller 310 moves toward the first straight line, and the film strip 2 is continuously transmitted to the discharge port of the film strip buffer unit 300 while maintaining the preset tension. That is, when the film splicing device 200 is clamped, the feed port of the film strip buffer unit 300 no longer feeds. At this time, the storage film strip 2 is released by moving the conveying roller 310, so that the discharge port of the film strip buffer unit 300 can still discharge continuously, avoiding the subsequent process links from stopping, such as filling, and the polymerization reaction, unpacking, cutting and other links after filling, so as to achieve the overall process continuous and reliable, thereby ensuring production efficiency and controlling production costs. Preferably, the length of the storage film strip 2, that is, the storage length, is 10-20m.

[0141] In one embodiment, both ends of the conveying roller 310 are slidably disposed on the guide rail 320 and are connected to independent driving members to drive the conveying roller 310 to slide on the guide rail 320 .

[0142] This method improves the reliability of the movement of the conveying roller 310 through the guide rail 320, thereby improving the reliability of the storage material release, ensuring that the film strip 2 is continuously transmitted with a preset tension, maintaining the normal progress of the subsequent process, and achieving the closed and continuous preparation of the hydrophilic resin. In addition, by connecting each conveying roller 310 with an independent driving member, each conveying roller 310 can be independently controlled and moved, further improving the reliability of the movement of the conveying roller 310.

[0143] In one embodiment, the extension direction of each guide rail 320 is perpendicular to the first straight line, ensuring that the conveying roller 310 moves in a direction perpendicular to the first straight line, reducing the difficulty of controlling the moving distance of the conveying roller 310 and the storage material release ratio, and further improving the reliability of storage material release.

[0144] In one embodiment, the system further comprises a control unit connected to each driving member.

[0145] When switching from the first state to the second state, the control unit controls at least one conveying roller 310 near the feed port of the membrane tape buffer unit 300 to move a first distance toward the first straight line, for example, 1 / 4-3 / 4 of the length of the guide rail 320, so that the tension of the membrane tape 2 at the feed port of the membrane tape buffer unit 300 can be quickly reduced through the movement of the conveying roller 310, thereby avoiding a sudden increase in the tension of the membrane tape 2 at this position due to a sudden stop in feeding, resulting in breakage, and affecting the tension of the membrane tape 2 in the membrane tape buffer unit 300, thereby affecting the overall process flow.

[0146] In the second state, the control unit controls at least one conveying roller 310 to move toward the first straight line, so that the film tape 2 at the discharge port of the film tape buffer unit 300 is continuously fed, that is, the movement of the conveying roller 310 is gradually controlled in coordination with the reduction of the stored material to ensure that the tension remains unchanged.

[0147] When switching from the second state to the first state, the control unit controls at least one conveying roller 310 near the feed port of the film tape buffer unit 300 to move away from the first straight line by a second distance, for example, 1 / 4-3 / 4 of the length of the guide rail 320, so as to quickly increase the tension of the film tape 2 at the feed port of the film tape buffer unit 300 through the movement of the conveying roller 310, so as to avoid a sudden decrease in the tension of the film tape 2 at this position in the initial stage of feeding, resulting in loose backlog, and affecting the tension of the film tape 2 in the film tape buffer unit 300, thereby affecting the overall process flow; then, control at least one conveying roller 310 to move away from the first straight line until all the conveying rollers 310 move to the end of the corresponding guide rail 320 away from the first straight line, so as to realize material storage and resume normal operation.

[0148] In one embodiment, in the second state, the control unit controls multiple conveying rollers 310 to move toward the first straight line in sequence from near to far from the discharge port of the film tape buffer unit 300, and when the previous conveying roller 310 moves to the first straight line, the next conveying roller 310 moves, so as to quickly respond to the rhythm of subsequent process operations and adjust the tension of the discharge film tape, so that the film tape 2 at the discharge port of the film tape buffer unit 300 is continuously fed, thereby improving the output stability and reliability of the film tape 2 at the feed port of the film tape buffer unit 300 and ensuring the normal progress of the subsequent filling process.

[0149] In one embodiment, the film splicing device 200 includes a heat sealing device 210, a first guide component arranged between the discharge port of the film roll unit 100 and the heat sealing device 210, and a second guide component arranged between the heat sealing device 210 and the feed port of the film tape buffer unit 300.

[0150] In one embodiment, the first guide assembly includes two first guide rollers 220 arranged opposite to each other, and the two first guide rollers 220 are used to guide the film tape 2 output by the film roll unit 100 to the heat sealing device 210 in the first state, and to guide the multiple film tapes 2 output by the film roll unit 100 to the heat sealing device 210 in the second state, and to make the multiple film tapes 2 overlap, thereby improving the docking accuracy of the multiple film tapes 2 and further improving the film joining effect.

[0151] That is, in the first state, the two first guide rollers 220 may be arranged at intervals, the film roll unit 100 outputs a film strip 2, the film strip 2 passes through the interval between the two first guide rollers 220, and is connected to the heat sealing device 210, and one of the two first guide rollers 220 guides the film strip 2. In the second state, the two first guide rollers 220 are arranged in a clamped manner, the film roll unit 100 outputs a plurality of film strips 2, the plurality of film strips 2 pass through the two first guide rollers 220, and are connected to the heat sealing device 210, the two first guide rollers 220 clamp the plurality of film strips 2 so that the plurality of film strips 2 overlap, and play a guiding role.

[0152] Since the film strip 2 is not used up in the first state, it is not necessary to perform film splicing at this time. Therefore, in the first state, the heat sealing device 210 is not clamped to allow the film strip 2 to pass smoothly. The first guide roller 220 only needs to guide the film strip 2 to the heat sealing device 210 to improve the smoothness of the film strip 2. In the second state, the film strip 2 is about to be used up and needs to be spliced. The two first guide rollers 220 clamp multiple film strips 2 so that the multiple film strips 2 overlap, that is, the surface is attached, which improves the docking accuracy of the multiple film strips 2, thereby improving the subsequent film splicing effect of the heat sealing device 210. In one embodiment, the two first guide rollers 220 are slidably arranged in the first guide rail and can be fixed in the first guide rail by fasteners. The first guide rail is vertically arranged, so that the height position of the two first guide rollers 220 can be adjusted according to the position of the film splicing device 200, and the spacing setting or clamping setting can be adjusted to facilitate the adjustment, thereby improving the guiding effect, the docking accuracy of multiple film strips 2, and improving the film splicing effect.

[0153] In a specific embodiment, the heat sealing device 210 is used to clamp and heat seal the plurality of film strips 2 together at the portion of the heat sealing device 210 in the second state. For example, the film splicing device of the CN201863420U film in the prior art can achieve clamping and heat sealing of the film.

[0154] It is understandable that the heat sealing device 210 may also include a cutting mechanism to cut off the film strip that is about to be used up, so as to reduce the overlapping parts of multiple film strips after splicing and improve the quality of the film strip.

[0155] In one embodiment, the second guide assembly includes a second guide roller 230 , and the second guide roller 230 is used to guide the film tape 2 at the discharge port of the heat sealing device 210 to the feed port of the film tape buffer unit 300 .

[0156] In one embodiment, the second guide roller 230 is slidably disposed in the second guide rail and can be fixed in the second guide rail by a fastener. The second guide rail is vertically disposed, so that the height position of the second guide roller 230 can be adjusted according to the position of the film joining device 200 and the feed port of the film tape buffer unit 300, thereby improving the docking accuracy of multiple film tapes 2 and improving the film joining effect.

[0157] In one embodiment, the film roll unit 100 includes a plurality of film roll fixing members 110 , driving members 120 corresponding one-to-one to the plurality of film roll fixing members 110 , and abutting members 130 corresponding one-to-one to the driving members 120 .

[0158] The film roll fixing member 110 is used to connect the film roll 1, which is a rolled film tape 2. Multiple film roll fixing members 110 can store multiple film rolls 1 at the same time, so that when a film roll 1 is about to run out, the film splicing time can be shortened and the production efficiency can be improved. In addition, the storage length of the film tape 2 of the film tape buffer unit 300 can be reduced, thereby controlling the volume of the film tape buffer unit 300 and improving the control reliability. Generally speaking, two film roll fixing members 110 are sufficient.

[0159] The driving member 120 keeps in contact with the edge of the film roll 1, that is, the outermost surface film of the film roll 1, through the abutment member 130, and drives the film roll 1 to rotate to unfold the film strip 2, that is, the film roll 1 is directly driven to rotate and unwind by the driving member 120. Compared with the conventional method of driving the film roll 1 to rotate through a film roll fixing member, it can directly adapt to different types of film rolls 1, has high versatility, and effectively controls costs.

[0160] It should be noted that the conventional film roll unwinding machine is a film roll fixing part, such as an unwinding shaft, which drives the film roll 1 to rotate and unwind. The unwinding shaft needs to be customized according to the type of film roll, which is costly, has poor versatility, and is inconvenient to operate.

[0161] In one embodiment, the film roll unit 100 further includes a first roller set 140 , a second roller set 150 and a third roller set 160 which are sequentially arranged along the conveying direction of the film tape 2 .

[0162] In one embodiment, the first guide assembly, the heat sealing device 210 and the second guide assembly are located on the same straight line.

[0163] In one embodiment, the abutment member 130 is a gas pressure rod.

[0164] In one embodiment, the driving member 120 is a motorized roller.

[0165] Please see again Figure 1 , and see Figure 2 , Figure 2 This is a schematic side view of the filling unit 400 provided in Example 1 of the present application.

[0166] In one embodiment, the filling unit 400 includes a filling tube 410 and a film bag forming assembly.

[0167] The film bag forming assembly is used to continuously receive the film strip 2 and form a reaction bag by connecting the two sides of the film strip 2 in the length direction, that is, to form a closed (except for the front end opening to achieve continuous filling) and continuous reaction bag.

[0168] The filling tube 410 extends into the film bag forming assembly and continuously fills the reaction bag, thereby preparing a closed and continuous reaction material, thereby providing a basis for achieving a closed and continuous preparation of a hydrophilic resin.

[0169] In one embodiment, the film bag forming assembly includes a film bag forming mold 420, a film clamping device 430, a plurality of rolling sealing devices 440 and a transverse sealing device 450 which are sequentially arranged along the filling direction.

[0170] In one embodiment, the film bag forming mold 420 is trumpet-shaped and covers the circumference of the filling tube 410 , and is used to guide both sides of the length direction of the film strip 2 to cover the circumference of the filling tube 410 .

[0171] In one embodiment, the film clamping device 430 is used to guide the two sides of the film strip 2 to fit together in the length direction, and then the edges are sealed by the rolling sealing device 440, which improves the flatness of the edge sealing, thereby improving the firmness of the edge sealing, and further improving the quality of the continuous reaction bag, providing a basis for achieving continuous filling.

[0172] In one embodiment, the film clamping device 430 includes two clamping plates 431 arranged opposite to each other, the clamping plates 431 have a first length along the filling direction and extend to the feed port of the nearest rolling sealing device 440, so that the film clamping device 430 has a simple structure and closely cooperates with the rolling sealing device 440, further ensuring that both sides of the film strip 2 entering the rolling sealing device 440 are flatly attached, thereby improving the flatness and firmness of the edge sealing.

[0173] In one embodiment, the rolling sealing device 440 is used to continuously pull and fix the side edges of the connecting film tape 2 after being attached.

[0174] The plurality of rolling sealing devices 440 can work alternately or synchronously. Preferably, the plurality of rolling sealing devices 440 pull the film strip 2 synchronously, and only one rolling sealing device 440 is fixedly connected to the side edge of the film strip 2 after being attached, for example, by heat sealing, that is, alternate sealing and synchronous pulling, so as to achieve a better sealing effect and pulling effect, and at the same time, when one rolling sealing device 440 fails, the alternation is performed to ensure continuous production.

[0175] In one embodiment, the transverse sealing device 450 is used to fix the bottom of the film strip 2 fixed on both sides to form a reaction bag. It is understandable that the transverse sealing device 450 is usually only operated once at the beginning of the process to complete the bottom sealing of the continuous reaction bags.

[0176] In one embodiment, the rolling sealing device 440 includes two rolling heat sealing components arranged opposite to each other.

[0177] The rolling heat sealing assembly includes a driving wheel 441, a driven wheel 442 and a conveyor belt 443 wound around the two. At least one of the driving wheel 441 and the driven wheel 442 is provided with a heating element and is used for continuously pulling and heat-sealing the side edges of the film strip 2 after bonding.

[0178] This method increases the limited distance of the film strip 2 (reaction bag) pulled and conveyed by the rolling sealing device 440 through the conveyor belt 443, thereby improving the stability and reliability of the film strip 2 (reaction bag) conveying, providing a stable environment for filling, and thus ensuring stable and reliable filling. In addition, the heating element transfers heat to the conveyor belt 443 through the driving wheel 441 or the driven wheel 442, increasing the heat sealing distance, further improving the edge sealing firmness, and thus improving the quality of continuous reaction bags, providing a basis for achieving continuous filling.

[0179] Preferably, one of the driving wheel 441 and the driven wheel 442 close to the film clamping device 430 is provided with a heating element, thereby improving the edge sealing efficiency, that is, by forming continuous reaction bags as quickly as possible, thereby ensuring filling safety.

[0180] In one embodiment, the filling tube 410 is arranged vertically, and the filling direction is the direction of gravity.

[0181] In one embodiment, the end of the filling tube 410 is located at the level of the feeding port of the film clamping device 430 .

[0182] Embodiment 2:

[0183] See also Figure 3-Figure 5 , Figure 3 A schematic structural diagram of a continuous polymerization reaction unit 500 provided in Example 2 of the present application; Figure 4 A schematic top view of the structure of the continuous polymerization reaction unit 500 provided in Example 2 of the present application; Figure 5 This is a schematic side view of the structure of the continuous polymerization reaction unit 500 provided in Example 2 of the present application.

[0184] On the basis of Example 1, in this embodiment, the continuous polymerization reaction unit 500 of the system includes a first polymerization conveying line 510, and a first ultraviolet lamp 520, an exhaust duct 530 and a cooling device arranged above the first polymerization conveying line 510, so as to control heat and improve the polymerization reaction effect.

[0185] It can be understood that the continuous polymerization reaction unit 500 in this embodiment can be combined with the embodiment 1 or used alone, and is applicable to any polymerization reaction production.

[0186] In one embodiment, the first polymerization conveying line 510 is disposed corresponding to the discharge port of the filling unit 400 and is used to continuously move and polymerize the reaction liquid in the reaction material to form a hydrophilic resin under the irradiation of the first ultraviolet lamp 520 .

[0187] In one embodiment, the cooling device is provided corresponding to the first ultraviolet lamp 520 and is used to cool the first ultraviolet lamp 520 to prevent the large amount of heat generated by the lamp from being dissipated and causing the polymerization environment to heat up rapidly. The cooling device may be an air conditioner.

[0188] In one embodiment, the exhaust duct 530 is provided with a plurality of exhaust ports 531 toward the first polymerization conveying line 510, and the exhaust ports 531 are located above the first ultraviolet lamp 520. The exhaust duct 530 is used to cool the polymerization environment as a whole, taking into account both the heat dissipation of the lamp and the heat dissipation of the polymerization reaction, thereby avoiding excessive local heating of the reaction liquid, resulting in uneven polymerization, affecting the quality of the finished product, and even overheating causing safety problems, thereby improving the quality of the hydrophilic resin.

[0189] In one embodiment, the output air flow temperature of the cooling device is 18-26°C, and the temperature around the first ultraviolet lamp 520 is controlled to be stable below 40°C.

[0190] In one embodiment, the exhaust duct 530 and / or the cooling device control the periphery of the first polymerization conveying line 510 to be stabilized at below 60°C.

[0191] In one embodiment, the first polymerization conveyor line 510 is provided with multiple layers, and the multiple layers of the first polymerization conveyor line 510 are sequentially arranged in the height direction, that is, by utilizing the height layout, the floor space occupied by the continuous polymerization reaction unit 500 can be effectively controlled, thereby reducing costs. At the same time, it is convenient to set up subsequent process equipment such as unpacking and cutting, realize direct docking, centralized production, reduce transit transportation routes, and thus reduce the cost of the entire process of the hydrophilic resin, improve production efficiency and the quality of the final product.

[0192] In one embodiment, a flipping assembly 540 is provided between adjacent first polymerization conveyor lines 510, and the flipping assembly 540 is used to flip and move the continuously bagged reaction liquid between two adjacent first polymerization conveyor lines 510, so that the front and back sides of the continuously bagged reaction liquid are alternately placed on the two adjacent first polymerization conveyor lines 510, that is, the front and back sides are alternately illuminated, which further improves the polymerization uniformity and improves the quality of the hydrophilic resin.

[0193] In one embodiment, the flipping assembly 540 includes a guide roller 541, which is connected to a motor and rotates driven by the motor, so that the continuously bagged reaction liquid is flipped from the lower first polymerization conveying line 510 through the drum surface of the guide roller 541 and moved to the upper first polymerization conveying line 510.

[0194] In one embodiment, the flip assembly 540 also includes a guide plate 542, which has an arc-shaped guide surface that is compatible with the cylinder surface of the guide roller 541. The guide surface of the guide plate 542 and the cylinder surface of the guide roller 541 are used to cooperate with each other to clamp the continuous bagged reaction liquid, that is, the continuous reaction material.

[0195] In one embodiment, the flip assembly 540 further includes a limit plate 543 , which is disposed at both ends of the guide roller 541 and connected to the edge of the guide surface of the guide plate 542 to prevent the reaction material from being skewed during the flipping process.

[0196] In one embodiment, a plurality of heat dissipation holes are provided on the conveying surface of the first aggregate conveyor line 510. For example, the first aggregate conveyor line 510 is a chain plate structure, thereby having a plurality of heat dissipation holes while ensuring strength.

[0197] Furthermore, the plurality of heat dissipation holes allow the polymerization heat to escape quickly from the bottom of the first polymerization conveying line 510, further improving the heat dissipation effect, thereby improving the polymerization quality and safety. In addition, especially when the reaction material is still liquid, if the reaction liquid leaks, the liquid at the leaking position can be discharged quickly, reducing the impact on the entire first polymerization conveying line 510 and improving the convenience of maintenance.

[0198] In one embodiment, corridors 550 are set up on the sides of each layer of the first polymerization conveyor line 510, and multiple layers of corridors 550 are connected by stairs 560. The stairs 560 are set at the end of the first polymerization conveyor line 510 on each layer, so as to facilitate the observation of the entire polymerization process and the maintenance of the equipment on each layer.

[0199] Preferably, the driving motor 511 of the first polymer conveyor line 510 is arranged on the corridor 550, so as to further facilitate maintenance.

[0200] Preferably, a guardrail 551 is provided on the side of the corridor 550 .

[0201] In one embodiment, the front end of the first polymerization conveyor line 510 of the bottom layer is connected to a stabilization unit, which includes a second polymerization conveyor line 570 and a second ultraviolet lamp arranged above the second polymerization conveyor line 570. The stabilization unit extends the polymerization reaction time of the bottom layer to ensure that it has been transformed into a gel state when flipped upward, thereby preventing the reaction liquid from shaking drastically in the bag during the flipping process and moving away from its original position, resulting in the generated hydrophilic resin having low quality or even being unable to be flipped and moved.

[0202] Preferably, an exhaust duct 530 and a cooling device are also provided above the second polymerization conveying line 570 .

[0203] In one embodiment, a plurality of first ultraviolet lamps 520 are provided, and the plurality of first ultraviolet lamps 520 are sequentially arranged along the length direction of the first polymerization conveying line 510 .

[0204] In one embodiment, the width of the first UV lamp 520 is adapted to the width of the first polymerization conveyor line 510 .

[0205] In one embodiment, a heat dissipation conveyor line is connected above the top first polymerization conveyor line 510 via a flip assembly 540, and an exhaust duct 530 is provided above the heat dissipation conveyor line to improve the heat dissipation efficiency of the polymerization product, thereby allowing the polymerization product to enter the final stable state faster, facilitating rapid entry into subsequent process flows and improving overall efficiency.

[0206] Embodiment 3:

[0207] See also Figure 6 , Figure 6 This is a schematic diagram of the structures of the flattening unit 600 and the unpacking unit 700 provided in Example 3 of the present application.

[0208] On the basis of Example 1 and Example 2, in this embodiment, the system further includes a flattening unit 600 and a plurality of unpacking units 700 connected in sequence, so as to realize the removal of reaction bags of continuous reaction materials after polymerization.

[0209] It can be understood that the flattening unit 600 and the unpacking unit 700 in this embodiment can be combined with embodiments 1 and 2, or used alone, and are suitable for any unpacking of continuously bagged materials.

[0210] In one embodiment, the flattening unit 600 includes a first flattening conveyor line 610 and a pressure member 620. The pressure member 620 is disposed above the first flattening conveyor line 610 and is used to flatten the material on the first flattening conveyor line 610 to flatten the material, that is, to achieve its top and bottom flatness, so that the subsequent cutting knife 720 can align with the preset position of the packaging bag for disassembly, so that the upper and lower films can be separated in a preset shape, thereby facilitating subsequent winding and improving the unpacking reliability.

[0211] In one embodiment, multiple unpacking units 700 operate alternately, thereby avoiding the need to shut down an unpacking unit 700 after it is damaged or for maintenance, achieving continuous and reliable unpacking, improving unpacking efficiency and reliability, and further achieving continuous operation of the entire process.

[0212] In one embodiment, the unpacking unit 700 located at the front end of the multiple unpacking units 700 is correspondingly arranged at the discharge port of the flattening unit 600 .

[0213] In one embodiment, the unpacking unit 700 includes a second unpacking conveyor line 710, and a cutting assembly and a film rolling assembly are sequentially arranged along the conveying direction of the second unpacking conveyor line 710 to achieve unpacking.

[0214] In one embodiment, the cutting assembly includes two cutters 720 respectively arranged on both sides of the second unpacking conveyor line 710, and the cutters 720 are used to cut the packaging bag of the material from the side of the material and form the upper film 3 and the lower film 4 of the packaging bag of the material.

[0215] In one embodiment, the film rolling assembly includes an upper film rolling device 730 and a lower film rolling device 740 respectively arranged above and below the second unpacking conveyor line 710, the upper film rolling device 730 is used to roll up the upper film 3, and the lower film rolling device 740 is used to roll up the lower film 4.

[0216] In one embodiment, the cutting assembly of the unpacking unit 700 located at the front end of the multiple unpacking units 700 is arranged near the end of the first leveling conveyor line 610. The cutting assembly of the adjacent unpacking unit 700 is arranged near the end of the second unpacking conveyor line 710 of the previous unpacking unit 700. This method facilitates the upper film 3 and the lower film 4 formed by cutting to be quickly connected to the corresponding upper film rolling device 730 and the lower film rolling device 740 through the connection gap between the conveyor lines, thereby improving the unpacking efficiency.

[0217] In one embodiment, two of the plurality of unpacking units 700 are provided.

[0218] In one embodiment, the pressing member 620 is a third leveling conveyor line inclined toward the end of the first leveling conveyor line 610 .

[0219] The third leveling conveyor line and the first leveling conveyor line 610 clamp the material together and convey it toward the unpacking unit 700, thereby achieving leveling while reducing the impact on the continuous bagging material conveying efficiency.

[0220] In one embodiment, the driving wheel of the first leveling conveyor line 610 and the driving wheel of the third leveling conveyor line are both arranged close to the unpacking unit 700, and the driving wheel of the first leveling conveyor line 610 and the driving wheel of the third leveling conveyor line are arranged opposite to each other in the vertical direction, thereby improving the transmission reliability of continuous bagged materials when subjected to cutting knife resistance.

[0221] In one embodiment, the cutting knife 720 is retractable to move closer to or further away from the material on the first leveling conveyor line 610 or the second unpacking conveyor line 710, so that the cutting knife 720 can adjust the cutting depth according to different cutting requirements and can be easily maintained.

[0222] In one embodiment, the film rolling device 730 includes a film roll fixing member 110, a driving member 120 and an abutting member 130. The film roll fixing member 110 is used to connect a film reel, and the film reel is used to provide a central shaft cylinder for winding the film tape into a roll.

[0223] The driving member 120 is connected to the abutment member 130, and the abutment member 130 is used to keep the surface of the film roll shaft on the film roll fixing member 110 in contact with the film roll fixing member 110. The film roll shaft on the film roll fixing member 110 rotates and reels the upper film 3 under the drive of the driving member 120, that is, the driving member 120 directly drives the film roll shaft to rotate and rewind. Compared with the conventional method of driving the film roll shaft to rotate through the film roll fixing member, it can be directly adapted to different types of film rolls, has high versatility, and effectively controls costs.

[0224] In one embodiment, the film rolling device 730 also includes a mounting seat 731, a film roll fixing member 110 is arranged on the mounting seat 731, an abutment member 130 is rotatably arranged on the mounting seat 731, a driving member 120 is arranged at the end of the abutment member 130 away from the mounting seat 731, and the abutment member 130 is connected to a torsion spring, which applies a torsional force toward the film roll fixing member 110 to the driving member 120, so that the driving member 120 has a tendency to fit the surface of the film roll shaft on the film roll fixing member 110.

[0225] In one embodiment, the structure of the lower film rolling device 740 is the same as that of the upper film rolling device 730 .

[0226] Embodiment 4:

[0227] See also Figure 7 , Figure 7 This is a schematic structural diagram of the stripping unit 800 and the cutting unit 900 provided in Example 4 of the present application.

[0228] On the basis of Examples 1-3, in this example, the system further includes a stripping unit 800 and a cutting unit 900 arranged at the discharge port corresponding to the stripping unit 800, so as to realize the segmentation of the continuous rubber block (i.e., hydrophilic resin) into smaller blocks in the length direction and the width direction.

[0229] It can be understood that the stripping unit 800 and the cutting unit 900 in this embodiment can be combined with the embodiment 1, or used alone, and are suitable for cutting any continuous material.

[0230] In one embodiment, the slitting unit 800 includes a first slitting conveying line 810, a first pressing member 820 disposed above the first slitting conveying line 810, and a cutting assembly.

[0231] A limiting area for clamping and conveying the continuous rubber block is formed between the first pressing member 820 and the first stripping conveyor line 810. The cutting assembly is arranged at an outlet of the limiting area corresponding to the limiting area, and the cutting assembly includes a plurality of first cutters 830 arranged in sequence along the width direction of the first stripping conveyor line 810. The blades of the plurality of first cutters 830 are parallel to the length direction of the continuous rubber block to strip it.

[0232] The dicing unit 900 includes an intermittently conveying second dicing conveying line 910, at the end of which is provided a second cutter 930, which can intermittently move in a vertical direction, and the blade of the second cutter 930 is parallel to the width direction of the continuous rubber block to cut it into pieces. It can be understood that the second dicing conveying line 910 and the second cutter 930 cooperate to achieve dicing.

[0233] In one embodiment, the block cutting unit 900 further includes a second pressing member 920, which is disposed above the end of the second block cutting conveying line 910 and cooperates with the end of the second block cutting conveying line 910 to clamp the continuous rubber block.

[0234] In one embodiment, the second cutter 930 is inclined relative to the plane where the conveying surface of the second dicing conveying line 910 is located, and the inclination angle is an acute angle.

[0235] In one embodiment, the second cutter 930 is connected to a transmission rod 931, the end of the transmission rod 931 facing away from the second cutter 930 abuts against an eccentric wheel 932, the eccentric wheel 932 is connected to a motor, and the rotation of the eccentric wheel 932 drives the second cutter 930 to move intermittently in the vertical direction through the transmission rod 931.

[0236] In one embodiment, the first pressing member 820 is a third strip conveying line, which is arranged in parallel with the first strip conveying line 810 , and the end of the third strip conveying line is arranged close to the end of the first strip conveying line 810 .

[0237] In one embodiment, a pressure rod 821 is connected to one end of the first pressing member 820 close to the cutting assembly, and the pressure rod 821 applies pressure to the corresponding end of the first pressing member 820 toward the first slitting conveying line 810 .

[0238] In one embodiment, the first cutter 830 is a circular roller cutter, and a plurality of first cutters 830 are connected to the same rotating shaft, and the rotating shaft is connected to a roller cutter motor 831 .

[0239] In one embodiment, the second pressing member 920 is a fourth dicing conveying line inclined toward the end of the second dicing conveying line 910 .

[0240] The fourth block conveying line and the second block conveying line 910 clamp together and convey the continuous rubber block toward the second cutter 930 .

[0241] It is understandable that the fourth dicing conveying line is an intermittent conveying line similar to the second dicing conveying line 910. Preferably, both are driven by a stepping motor.

[0242] In one embodiment, the first slitting conveyor line 810 and the second dicing conveyor line 910 are both chain plate structures.

[0243] Embodiment 5:

[0244] See also Figure 8-10 , Figure 8 This is a schematic diagram of the structure of the acid-base mixing unit 1000 provided in Example 5 of the present application; Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of part A; Fig.10 for Fig. 9 Schematic diagram of the top view structure.

[0245] On the basis of Example 1, in this embodiment, the system further includes an acid-base mixing unit 1000 , which is used to mix and produce a reaction liquid for preparing a hydrophilic resin through a polymerization reaction, and the prepared reaction liquid is filled through a filling tube 410 of a filling unit 400 .

[0246] It can be understood that the acid-base mixing unit 1000 in this embodiment can be combined with Example 1, that is, connected to the filling unit 400, and can also be used alone. At the same time, it is applicable not only to acid-base mixing, but also to mixing of any different liquids. In particular, mixing releases heat, which can effectively control heat, improve mixing safety, and at the same time improve mixing production efficiency, and can achieve continuous and uninterrupted mixing.

[0247] In one embodiment, the acid-base mixing unit 1000 includes a mixing tank 1100 and an alkali liquid tank 1200 (i.e., a first liquid tank), the mixing tank 1100 is used to pre-store acid liquid (i.e., a second liquid), and the mixing tank 1100 is connected to a heat exchanger 1300, and the alkali liquid tank 1200 transports alkali liquid (i.e., the first liquid) into the mixing tank 1100 through an infusion component.

[0248] In this embodiment, the amount of acid is larger and the amount of alkali is less, so the mixing tank 1100 is used to pre-store acid and the first liquid tank stores alkali. In other alternative embodiments, the mixing tank 1100 can pre-store alkali or other liquids, and the first liquid tank stores acid or other liquids.

[0249] In one embodiment, the heat exchanger 1300 is connected to the mixing tank 1100 and is used to circulate heat for the liquid in the mixing tank 1100, that is, to directly cool the mixed liquid, thereby quickly reducing the temperature in the tank and improving the temperature control effect.

[0250] In one embodiment, the circulation outlet of the heat exchanger 1300 is located inside the mixing tank 1100 and is disposed close to the top of the mixing tank 1100 , and a diffuser plate 1400 is disposed corresponding to the circulation outlet.

[0251] In one embodiment, the infusion outlet of the infusion component is located inside the mixing tank 1100, close to and above the diffuser plate 1400. The diffuser plate 1400 is used to disperse the liquid to form a waterfall-like fluid with a lower temperature. Most of the liquid output from the infusion outlet is first mixed with a liquid with a larger area and a lower temperature, so that a small amount of liquid can be pre-mixed in a larger space, and the mixing temperature can be controlled, thereby improving the mixing safety.

[0252] In one embodiment, the infusion outlet of the infusion component is provided with a liquid limiting member 1500, which is in the shape of an inverted funnel and is located within the range of the vertical projection of the diffuser plate 1400, so as to control the falling direction of the liquid output from the infusion outlet and guide the liquid to diffuse, so that the liquid output from the infusion outlet is dispersed and in contact with the liquid on the diffuser plate 1400 over a larger area, further controlling the mixing temperature rise and improving the mixing safety.

[0253] In one embodiment, the diffuser plate 1400 is arranged to be inclined, and the highest point is located directly below the circulation outlet, so as to improve the diffuser effect of the diffuser plate 1400 .

[0254] In one embodiment, the diffuser plate 1400 is a fan-shaped plate, and the center of the diffuser plate 1400 is the highest point of the diffuser plate 1400. The two side edges of the fan-shaped plate are tilted outward to guide the mixed liquid to further diffuse, thereby achieving dispersion and larger area contact with the liquid surface inside the mixing tank 1100, further controlling the mixing temperature rise and improving the mixing safety.

[0255] In one embodiment, the heat exchanger 1300 is connected to a circulation output pipe 1310, which extends into the mixing tank 1100, and the end of the circulation output pipe 1310 is the circulation outlet of the heat exchanger 1300. A diffuser plate 1400 is provided at the end of the circulation output pipe 1310, that is, the diffuser plate 1400 is installed on the circulation output pipe 1310 to fix the diffuser plate 1400 and facilitate disassembly from the mixing tank 1100 together with the circulation output pipe 1310, thereby improving maintenance convenience.

[0256] In one embodiment, the heat exchanger 1300 is connected to a circulation input pipe 1320, the circulation input pipe 1320 is connected to the bottom of the mixing tank 1100, and the circulation input pipe 1320 is connected to a reflux pump 1321 to achieve circulation heat exchange.

[0257] In one embodiment, the infusion assembly includes an infusion tube 1600, one end of which is connected to the alkali liquid tank 1200, and the other end extends into the mixing tank 1100, and the end of the infusion tube 1600 is the infusion outlet of the infusion assembly, and a limited liquid part 1500 is set at the end of the infusion tube 1600.

[0258] In one embodiment, the infusion tube 1600 is connected to a regulating valve 1610 to control the mixing reaction.

[0259] In one embodiment, a stirring mechanism 1110 is disposed in the mixing tank 1100 to improve mixing efficiency and mixing effect.

[0260] In one embodiment, the outer side of the mixing tank 1100 is coated with a jacketed coil cooling device 1120 to cool the mixing tank 1100 and improve mixing safety.

[0261] In one embodiment, the conveyor lines involved in the system are all chain plate structures to take into account both strength and heat dissipation.

[0262] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A continuous preparation system for a hydrophilic resin, characterized in that: It includes a film roll unit, a film tape buffer unit, a filling unit and a continuous polymerization reaction unit which are connected in sequence; The film roll unit is used to provide the film tape to the filling unit via the film tape buffer unit; A film splicing device is provided between the film roll unit and the feed port of the film tape buffer unit, the film tape of the film roll unit passes through the film splicing device and is connected to the feed port of the film tape buffer unit, and the film splicing device can clamp the film tape; The filling unit is arranged corresponding to the discharge port of the film tape buffer unit, and the filling unit continuously pulls the film tape at the discharge port to form continuous reaction bags, and continuously fills the reaction bags to form continuous reaction materials; The continuous polymerization reaction unit is used to continuously receive the reaction material and polymerize the reaction liquid in the reaction material into a hydrophilic resin; wherein, The film tape buffer unit comprises a plurality of movable conveying rollers distributed on both sides of a first straight line, and the rotation axes of the conveying rollers are parallel to each other and perpendicular to the first straight line; wherein the first straight line is a line connecting a feed port and a discharge port of the film tape buffer unit; The film belt is in a Z shape and passes around the plurality of conveying rollers on both sides of the first straight line in sequence; The film tape buffer unit has a first state and a second state, and In the first state, the film splicing device is not clamped, and the plurality of conveying rollers apply tension to the film tape, so that the film tape is continuously transmitted to the discharge port of the film tape buffer unit with a preset tension; In the second state, the film splicing device is clamped, and at least one of the conveying rollers moves toward the first straight line, so that the film tape is continuously transmitted to the discharge port of the film tape buffer unit while maintaining the preset tension; Both ends of the conveying roller are slidably arranged on the guide rail and are connected with independent driving members to drive the conveying roller to slide on the guide rail; The extension direction of each guide rail is perpendicular to the first straight line; Also includes a control unit connected to each of the driving members; When the first state is switched to the second state, the control unit controls at least one of the conveying rollers close to the feed port of the film tape buffer unit to move a first distance toward the first straight line; In the second state, the control unit controls at least one of the conveying rollers to move toward the first straight line, so that the film tape at the discharge port of the film tape buffer unit is continuously fed; When the second state switches to the first state, the control unit controls at least one of the conveying rollers near the feed port of the membrane tape buffer unit to move away from the first straight line a second distance; then, controls at least one of the conveying rollers to move away from the first straight line until all of the conveying rollers move to the end of the corresponding guide rail away from the first straight line.

2. The continuous preparation system of hydrophilic resin according to claim 1, characterized in that: In the second state, the control unit controls the plurality of conveying rollers to move toward the first straight line in sequence from near to far from the discharge port of the film tape buffer unit, and when the previous conveying roller moves to the first straight line, the next conveying roller moves, so that the film tape at the discharge port of the film tape buffer unit is continuously fed.

3. The hydrophilic resin continuous preparation system according to claim 1, characterized in that: The film splicing device includes a heat sealing device, a first guide component arranged between the discharge port of the film roll unit and the heat sealing device, and a second guide component arranged between the heat sealing device and the feed port of the film tape buffer unit; The first guide assembly comprises two first guide rollers arranged opposite to each other, the two first guide rollers are used to guide the film strip outputted by the film roll unit to the heat sealing device in the first state, and to guide the plurality of film strips outputted by the film roll unit to the heat sealing device in the second state, and to make the plurality of film strips overlap; The heat sealing device is used to clamp and heat-seal the parts of the plurality of film strips located in the heat sealing device into one in the second state; The second guide assembly includes a second guide roller, and the second guide roller is used to guide the film tape at the discharge port of the heat sealing device to the feed port of the film tape buffer unit.

4. The continuous preparation system of hydrophilic resin according to claim 3, characterized in that: The film roll unit includes a plurality of film roll fixing members, driving members corresponding to the plurality of film roll fixing members one by one, and abutting members corresponding to the driving members one by one; The film roll fixing member is used to connect the film roll, and the film roll is a film tape stored in a roll; The driving member is kept in contact with the edge of the film roll through the abutment member, and drives the film roll to rotate so as to unfold the film strip.

5. The continuous preparation system of hydrophilic resin according to claim 1, characterized in that: The filling unit comprises a filling tube and a film bag forming assembly; The film bag forming assembly is used to continuously receive the film strip and form the reaction bag by connecting two sides of the film strip in the length direction; The filling tube extends into the film bag forming assembly and continuously fills the reaction bag.

6. The continuous preparation system of hydrophilic resin according to claim 5, characterized in that: The film bag forming assembly comprises a film bag forming die, a film clamping device, a plurality of rolling sealing devices and a transverse sealing device which are sequentially arranged along the filling direction; The film bag forming mold is trumpet-shaped and covers the circumference of the filling tube, and is used to guide the two sides of the film strip in the length direction to cover the circumference of the filling tube; The film clamping device is used to guide the two sides of the film strip in the length direction to fit together; The rolling sealing device is used to continuously pull and fix the side edges of the film tape after bonding; The transverse sealing device is used to fix and connect the bottom of the film strip after both sides are fixed to form the reaction bag.

7. The continuous preparation system of a hydrophilic resin according to claim 6, characterized in that: The rolling sealing device comprises two rolling heat sealing components arranged opposite to each other; The rolling heat sealing assembly includes a driving wheel, a driven wheel and a conveyor belt wound around the two wheels. At least one of the driving wheel and the driven wheel is provided with a heating element and is used for continuously pulling and heat-sealing the side edges of the film strip after bonding.

8. The continuous preparation system of hydrophilic resin according to claim 1, characterized in that: The continuous polymerization reaction unit comprises a first polymerization conveying line, and a first ultraviolet lamp, an exhaust pipe and a cooling device arranged above the first polymerization conveying line; The first polymerization conveying line is arranged corresponding to the discharge port of the filling unit and is used to continuously move and polymerize the reaction liquid in the reaction material to form a hydrophilic resin under the irradiation of the first ultraviolet lamp; The exhaust pipe is provided with a plurality of exhaust ports toward the first polymerization conveying line, and the exhaust ports are located above the first ultraviolet lamp; The cooling device is arranged corresponding to the first ultraviolet lamp and is used to cool the first ultraviolet lamp; The filling unit is also connected to an acid-base mixing unit, and the continuous polymerization reaction unit is also connected to a leveling unit, an unpacking unit, a stripping unit and a cutting unit.

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