An emulsion synthesis kettle for water-based pressure-sensitive adhesive

Abstract

The utility model belongs to synthetic kettle technical field, concretely is a kind of emulsion synthesis kettle for water-based pressure-sensitive adhesive, it includes: kettle body and the motor of installation at the top end of kettle body, the output end of motor is fixedly connected with the shaft through shaft coupling, and the shaft is fixed with emulsification mechanism and scraping mechanism, and scraping mechanism includes gear ring and gear, and the shaft is fixedly connected with gear, and gear ring is engaged on gear, and the bottom end of gear ring is annularly equidistant fixed connection with several fixed rods, and fixed rod is fixedly installed with bracing bar and scraper, and several rotating rods are rotatably installed on bracing bar, and rotating rod is threadedly connected between bracing bar and scraper, and scraper is rotatably connected between bracing bar and kettle body;The acute angle side of scraper and kettle body inner wall rotatably connected can closely adhere kettle body arc inner wall, in the process of rotation, scraper can cut into the adhesive layer attached to inner wall, and residual adhesive can be quickly stripped from inner wall, avoid solidified material to influence the purity of subsequent batch adhesive.

Description

Technical Field

[0001] This utility model belongs to the field of synthesis reactor technology, specifically an emulsification synthesis reactor for water-based pressure-sensitive adhesives. Background Technology

[0002] In the production process of pressure-sensitive adhesives, the emulsification synthesis reactor is the core equipment, which is responsible for uniformly dispersing the oil phase monomers in the aqueous phase to achieve a stable emulsion system. The equipment adopts a multi-layer shear structure to efficiently break the oil phase into micron-sized droplets and distribute them evenly in the aqueous phase. At the same time, it effectively eliminates sedimentation dead zones during the stirring process, ensuring the overall homogeneity of the system.

[0003] While commonly used emulsion mixing tanks possess basic mixing functions, their mixing structures often fail to conform well to the inner wall and bottom of the tank, resulting in some emulsion material remaining on the walls. These residues are prone to solidification during subsequent processes and may be mixed into later production batches, causing quality problems such as reduced product purity and increased particulate impurities.

[0004] Therefore, it is necessary to develop a synthesis vessel structure that can effectively prevent emulsion residue on the inner wall in order to improve product purity. Utility Model Content

[0005] Therefore, it is necessary to provide an emulsification and synthesis reactor for water-based pressure-sensitive adhesives, in which a scraper is rotatably connected to the inner wall of the reactor, and its acute-angled side can closely fit the arc-shaped inner wall of the reactor. During rotation, the scraper can cut into the adhesive layer attached to the inner wall, and can quickly peel off the residual adhesive from the inner wall, so as to avoid the cured material from affecting the purity of subsequent batches of adhesive.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] An emulsification and synthesis reactor for water-based pressure-sensitive adhesives includes a reactor body and a motor mounted on the top of the reactor body. The output end of the motor is fixedly connected to a rotating shaft via a coupling. An emulsification mechanism and a scraping mechanism are fixed on the rotating shaft. The scraping mechanism includes a gear ring and a gear. The gear is fixedly connected to the rotating shaft, and the gear ring meshes with the gear. Several fixed rods are fixedly connected in an annular shape at equal intervals at the bottom end of the gear ring. Support rods are engaged on the fixed rods. Scrapers are threadedly installed at the ends of the fixed rods. Several rotating rods are rotatably mounted at equal intervals on the support rods. The rotating rods are threadedly connected to the scrapers, and the scrapers are rotatably connected to the reactor body.

[0008] Optionally, in one embodiment of the present invention, the fixed rod is inclined near the support rod, and the scraper has a triangular cross-section.

[0009] Optionally, in one embodiment of the present invention, the rotating shaft, gear ring, and gear are all rotatably connected to the vessel body, and the end of the rotating rod near the support rod is provided with a regular hexagonal structure.

[0010] Optionally, in one embodiment of the present invention, the emulsification mechanism includes a long rod and a flange. The flange is fixedly installed on the part of the vessel body near the gear ring. Several long rods are fixedly connected in a ring at equal intervals on the flange. An emulsification head is fixedly installed at the end of the long rod by bolts.

[0011] Optionally, in one embodiment of the present invention, the emulsification mechanism further includes impellers, a plurality of impellers are fixedly connected at equal intervals on the rotating shaft, and a plurality of long rods are arranged in a ring at equal intervals around the impellers, and the rotating shaft is rotatably connected to the flange and the emulsification head.

[0012] Optionally, in one embodiment of the present invention, the emulsification mechanism further includes connecting rods, and a plurality of connecting rods are fixedly connected in an annular shape at equal intervals to the side wall at the bottom end of the rotating shaft. A connecting block is fixedly installed at the end of the connecting rod, and the connecting rod and the connecting block are both inclined.

[0013] Optionally, in one embodiment of the present invention, a main body mechanism is fixedly installed on the vessel body. The main body mechanism includes a feeding pipe and a support base. The feeding pipe and the support base are fixedly connected to the bottom end of the vessel body, and the feeding pipe communicates with the interior of the vessel body.

[0014] Optionally, in one embodiment of the present invention, the main body further includes a water inlet pipe and a feed pipe, and the water inlet pipe and the feed pipe are fixedly installed on the top of the vessel body, and the water inlet pipe and the feed pipe are both connected to the interior of the vessel body.

[0015] Beneficial effects:

[0016] This utility model provides an emulsification and synthesis reactor for water-based pressure-sensitive adhesives. A rotating shaft is fixedly connected to a gear. When the motor drives the rotating shaft to rotate, the gear synchronously meshes with the gear ring to achieve transmission. This stable transmission ensures that the fixed rod and scraper connected to the bottom of the gear ring maintain a uniform rotation speed, avoiding incomplete scraping in certain areas due to speed fluctuations. The scraper is rotatably connected to the inner wall of the reactor. The acute angle of its triangular cross-section can tightly fit against the arc-shaped inner wall of the reactor. During rotation, the acute angle of the triangular scraper can cut into the adhesive layer attached to the inner wall like a blade, quickly peeling away residual adhesive from the inner wall and preventing the solidified material from affecting the purity of subsequent batches of adhesive. A rotating rod engages with a support rod, and its end is threadedly connected to the scraper. The rotating rod installed on the support rod is threadedly connected to the scraper. When the scraper is worn and needs replacement, simply unscrew the rotating rod to remove the old scraper. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection structure between the vessel body and the rotating shaft in Embodiment 1 of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the vessel body and the motor in Embodiment 1 of this utility model;

[0021] Figure 4 for Figure 3 The diagram shows an enlarged view of the structure of region A.

[0022] Figure 5 This is a schematic diagram of the connection structure between the support rod and the fixing rod in Embodiment 1 of this utility model;

[0023] Figure 6 for Figure 5 The diagram shows an enlarged view of the structure of region B.

[0024] Figure 7 for Figure 5 The diagram shows an enlarged view of the C region structure.

[0025] Reference numerals in the attached drawings: 1. Reactor body; 2. Motor; 3. Main body mechanism; 301. Water inlet pipe; 302. Feed pipe; 303. Feed outlet pipe; 304. Support base; 4. Rotating shaft; 5. Emulsifying mechanism; 5. Impeller; 501. Long rod; 502. Emulsifying head; 503. Flange; 504. Connecting rod; 505. Connecting block; 506. Scraping mechanism; 6. Support rod; 601. Rotating rod; 602. Scraper; 603. Fixed rod; 604. Gear ring; 605. Gear; 606. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0027] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0028] Because existing synthesis reactors are prone to emulsion residue on their inner walls, a synthesis reactor that avoids emulsion residue and is easy to use was designed. The specific solution is as follows:

[0029] Example 1

[0030] like Figure 1-7 As shown, an emulsification and synthesis reactor for water-based pressure-sensitive adhesive includes a reactor body 1 and a motor 2 mounted on the top of the reactor body 1. The output end of the motor 2 is fixedly connected to a rotating shaft 4 via a coupling. An emulsification mechanism 5 and a scraping mechanism 6 are fixed on the rotating shaft 4. The scraping mechanism 6 includes a gear ring 605 and a gear 606. The gear 606 is fixedly connected to the rotating shaft 4, and the gear ring 605 meshes with the gear 606. Several fixed rods 604 are fixedly connected in an annular shape at equal intervals at the bottom end of the gear ring 605. Support rods 601 are engaged on the fixed rods 604, and scrapers 603 are threaded onto the ends of the fixed rods 604. The motor 2 drives the rotating shaft 4 to rotate via the coupling. The rotating shaft 4 drives the gear 606 fixed on it to rotate synchronously. The gear 606 meshes with the gear ring 605 to achieve stable transmission, thereby driving the fixed rods 604 fixed in an annular shape at equal intervals at the bottom end of the gear ring 605. The support rod 601 and the scraper 603 with threads at the end of the support rod 604 rotate uniformly around the inner wall of the vessel body 1. Several rotating rods 602 are equidistantly mounted on the support rod 601. The rotating rods 602 are threadedly connected to the scraper 603, and the scraper 603 is rotatably connected to the vessel body 1. The fixed rod 604 is inclined near the support rod 601. The scraper 603 has a triangular cross-section. During emulsification, the triangular scraper 603 fits tightly against the arc-shaped inner wall of the vessel body 1 with its acute angle side, effectively peeling off the attached residual adhesive. The scraped adhesive slides down the fixed rod 604, which is inclined near the support rod 601, to the bottom of the vessel body 1, avoiding material accumulation. The rotating shaft 4, the gear ring 605, and the gear 606 are all rotatably connected to the vessel body 1. The end of the rotating rod 602 near the support rod 601 has a regular hexagonal structure.

[0031] The emulsification mechanism 5 includes long rods 502 and a flange 504. The flange 504 is fixedly installed on the vessel body 1 near the gear ring 605. Several long rods 502 are fixedly connected to the flange 504 in a ring at equal intervals. Emulsification heads 503 are fixedly installed at the ends of the long rods 502 by bolts. Several impellers 501 are fixedly connected to the rotating shaft 4 at equal intervals. The long rods 502 are arranged in a ring at equal intervals around the impellers 501. The rotating shaft 4 is rotatably connected to the flange 504 and the emulsification heads 503. Several impellers 501, inclined connecting rods 505 and connecting blocks 506 arranged in annularly at equal intervals at the bottom end also rotate synchronously. They cooperate with the annular long rod 502 fixed by flange 504 near the gear ring 605 of the vessel body 1 and the emulsifying head 503 bolted at the end to perform multi-layer shearing and stirring emulsification of the material in the vessel. Several connecting rods 505 are fixedly connected in annularly at equal intervals on the side wall at the bottom end of the rotating shaft 4. Connecting blocks 506 are fixedly installed at the ends of the connecting rods 505. The connecting rods 505 and connecting blocks 506 are both inclined.

[0032] A main body mechanism 3 is fixedly installed on the vessel body 1. The main body mechanism 3 includes a feeding pipe 303 and a support base 304. The feeding pipe 303 and the support base 304 are fixedly connected to the bottom end of the vessel body 1. The feeding pipe 303 is connected to the interior of the vessel body 1. After emulsification, the motor 2 is turned off, and the finished adhesive is discharged through the feeding pipe 303 connected to the interior of the vessel body 1. If continuous production is required, the above process can be repeated. The independent setting of the feeding pipe 303 allows the finished product to be discharged smoothly and reduces waiting time. A water inlet pipe 301 and a feeding pipe 302 are fixedly installed on the top of the vessel body 1. Both the water inlet pipe 301 and the feeding pipe 302 are connected to the interior of the vessel body 1.

[0033] Instructions for use:

[0034] First, when using the equipment, add water-based pressure-sensitive adhesive raw material through the feed pipe 302, and then inject water of the corresponding proportion through the water inlet pipe 301. Check the connection of components such as the fit between the scraper 603 and the inner wall of the vessel 1, and the fixed status of the rotating rod 602. The feed pipe 302 and the water inlet pipe 301 are independently set, which can quickly complete the material proportioning and equipment inspection, reducing the preparation time.

[0035] Then, motor 2 is started, driving shaft 4 to rotate, which in turn drives fixed gear 606 to rotate synchronously. Gear 606 meshes with gear ring 605 to achieve stable transmission, thereby driving the fixed rod 604, support rod 601, and scraper 603 fixed at the bottom of gear ring 605 to rotate uniformly around the inner wall of the vessel body 1. At the same time, impeller 501, inclined connecting rod 505, and connecting block 506 rotate synchronously, cooperating with annular long rod 502 and emulsifying head 503 to perform multi-layer shearing and stirring emulsification of the material in the vessel. During the emulsification process, triangular scraper 603... With its sharp-angled side tightly adhering to the arc-shaped inner wall of the vessel body 1, the attached residual adhesive is peeled off. The scraped adhesive slides down the fixing rod 604 to the bottom of the vessel body 1, avoiding material accumulation and eliminating the need for an additional scraping process. Through the synergistic action of the impeller 501 and the emulsifying head 503, and the stirring of the bottom material by the connecting rod 505, material sedimentation is prevented, ensuring uniform mixing and consistent particle size of the adhesive, thus improving viscosity stability. At the same time, the scraper 603 thoroughly cleans the residue on the inner wall, preventing the solidified material from mixing with the new material and ensuring product purity and batch quality consistency.

[0036] After emulsification is complete, motor 2 is turned off, and the finished adhesive is discharged through the feed pipe 303 at the bottom of the vessel 1. If continuous production is required, the above process can be repeated. When the scraper 603 is worn, the old scraper 603 can be removed and replaced by using a standard wrench to unscrew the rotating rod 602 near the support rod 601 using the regular hexagonal structure of the rotating rod 602. After replacement, the fitting gap can be adjusted by the threaded connection between the rotating rod 602 and the scraper 603 to adapt to the production needs of water-based pressure-sensitive adhesives of different viscosities. During regular maintenance, the emulsification head 503 can be disassembled and assembled without special tools, and the replacement of the emulsification head 503 or the cleaning of the equipment can be completed quickly, shortening the downtime for maintenance. The triangular support structure formed by the inclined fixing rod 604 and the support rod 601 enhances the running stability of the scraper 603. All rotating parts are flexibly connected to the vessel 1, and the support seat 304 at the bottom of the vessel 1 stabilizes the equipment. During operation, there is little vibration and low noise, reducing the risk of component deformation and failure, and extending the service life of the equipment.

[0037] The emulsification synthesis reactor in this solution uses a triangular scraper mechanism to remove adhering residual adhesive material, preventing material accumulation. The scraped adhesive material slides down the fixed rod to the bottom of the reactor, eliminating the need for an additional scraping process, improving cleaning efficiency, preventing the mixing of solidified material with new material, and ensuring product purity and batch-to-batch quality consistency.

[0038] The uniform rotation of the scraping mechanism is achieved through gear and gear ring transmission, ensuring smooth scraper operation. The impeller, inclined connecting rod, and connecting block in the emulsification mechanism rotate synchronously, working in conjunction with the long rod and emulsification head to perform multi-layer shearing and mixing of the material. This prevents sedimentation, ensures uniform mixing and consistent particle size of the adhesive, and improves the tack stability of the pressure-sensitive adhesive.

[0039] The scraper is fixed to the rotating rod by a threaded connection, and the end of the rotating rod adopts a regular hexagonal structure, which can be quickly disassembled and replaced with a standard wrench without special tools. The emulsifying head is installed by bolts, which is easy to disassemble and assemble, shortening downtime for maintenance.

[0040] The inclined fixing rod and the support rod form a triangular structure to ensure the rigidity of the scraping mechanism and reduce operating vibration and noise.

[0041] Example 2

[0042] In this embodiment, the structure of the synthesis vessel is basically the same as that in Example 1, except that...

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An emulsification and synthesis reactor for water-based pressure-sensitive adhesives, comprising a reactor body and a motor mounted on the top of the reactor body, wherein the output end of the motor is fixedly connected to a rotating shaft via a coupling, and an emulsification mechanism and a scraping mechanism are fixed on the rotating shaft, characterized in that: The scraping mechanism includes a gear ring and a gear. A gear is fixedly connected to the rotating shaft, and a gear ring meshes with the gear. Several fixed rods are fixedly connected in an annular shape at equal intervals at the bottom end of the gear ring. A support rod is engaged and installed on the fixed rod. A scraper is threadedly installed at the end of the fixed rod. Several rotating rods are rotatably installed at equal intervals on the support rod. The rotating rods are threadedly connected to the scraper, and the scraper is rotatably connected to the vessel body.

2. The emulsion synthesis kettle for water-based pressure sensitive adhesive according to claim 1, characterized in that: The fixed rod is inclined near the support rod, and the scraper has a triangular cross-section.

3. The emulsion synthesis reactor for water-based pressure sensitive adhesive according to claim 1, characterized in that: The rotating shaft, gear ring, and gear are all rotatably connected to the vessel body, and the end of the rotating rod near the support rod is configured with a regular hexagonal structure.

4. The emulsification and synthesis reactor for water-based pressure-sensitive adhesives according to claim 1, characterized in that: The emulsification mechanism includes long rods and a flange. The flange is fixedly installed on the part of the vessel body near the gear ring. Several long rods are fixedly connected in a ring at equal intervals on the flange. The emulsification head is fixedly installed at the end of the long rods by bolts.

5. The emulsification and synthesis reactor for water-based pressure-sensitive adhesives according to claim 4, characterized in that: The emulsification mechanism also includes impellers, and several impellers are fixedly connected at equal intervals on the rotating shaft. Several long rods are arranged in a ring at equal intervals around the impellers. The rotating shaft is rotatably connected to the flange and the emulsification head.

6. The emulsification and synthesis reactor for water-based pressure-sensitive adhesives according to claim 5, characterized in that: The emulsification mechanism also includes connecting rods. Several connecting rods are fixedly connected in a ring at equal intervals on the side wall at the bottom end of the rotating shaft. A connecting block is fixedly installed at the end of each connecting rod. Both the connecting rod and the connecting block are inclined.

7. The emulsification and synthesis reactor for water-based pressure-sensitive adhesives according to claim 1, characterized in that: A main body is fixedly installed on the vessel body. The main body includes a feeding pipe and a support base. The feeding pipe and the support base are fixedly connected to the bottom end of the vessel body. The feeding pipe is connected to the interior of the vessel body.

8. The emulsification and synthesis reactor for water-based pressure-sensitive adhesives according to claim 7, characterized in that: The main structure also includes a water inlet pipe and a feed pipe. The water inlet pipe and the feed pipe are fixedly installed on the top of the vessel body, and both the water inlet pipe and the feed pipe are connected to the interior of the vessel body.

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