Mixing and defoaming system for preparing base-material-free AB glue

Abstract

The invention provides a mixing and defoaming system for preparing base-material-free AB glue, which comprises a mixing tank, an annular transition tank fixedly sleeved on the periphery in the mixing tank, an annular defoaming tank fixedly sleeved on the periphery of the annular transition tank, a stirring component mounted in the mixing tank, an annular scraper plate mounted on the inner top of the mixing tank and abutting against the tank wall, and a defoaming component mounted on the inner top of the annular scraper plate. The annular scraping plate can lift to scrape glue on the tank wall, the bottom of the mixing tank pumps glue into the annular transition tank through a first glue pumping assembly, the top of the annular transition tank is provided with a second glue pumping assembly for pumping glue into the annular defoaming tank, and the annular defoaming tank is internally provided with an annular piston in a matched mode; and a plurality of glue outlet holes connected with the second glue pumping assembly are formed in the circumferential bottom of the annular piston. According to the system, the mixing tank body and the defoaming tank body are integrated, and the transition tank body is additionally arranged between the mixing tank body and the defoaming tank body, so that the occupied area is small, the pipeline layout is simple, rubber adhered to the stirring assembly and the tank wall is convenient to remove, and the defoaming effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of AB glue, and in particular to a mixed defoaming system for preparing AB glue without a substrate. Background Art

[0002] With the rapid economic growth, the 3C industry is developing very rapidly. The cover has evolved from the original acrylic (PC board) to the current 3D glass, ceramic or sapphire. Nowadays, the consumer electronics market has higher and higher aesthetic requirements for new products. Mobile phones, tablets, and cameras have begun to use curved screens to enhance their respective product value. In this curved glass bonding industry, AB glue bonding is inevitable.

[0003] At present, the preparation of substrate-free AB glue usually goes through the processes of batching, mixing and defoaming. The mixing and defoaming processes use separate tanks, which are connected by pipelines. The tanks occupy a large area, the pipelines are relatively complex, and the degree of integration is low. In addition, after each mixing process, the glue will adhere to the stirring assembly and the tank wall, affecting the control of the next batching amount. Summary of the invention

[0004] In view of the above problems, the present invention provides a mixed defoaming system for preparing AB glue without substrate. The system integrates a mixing tank body and a defoaming tank body, and adds a transition tank body in the middle. It has a small footprint, a simple pipeline layout, and is easy to remove the glue adhering to the stirring component and the tank wall, and has a good defoaming effect.

[0005] To solve the above problems, the technical solution adopted by the present invention is: A mixed defoaming system for preparing substrate-free AB glue comprises a mixing tank, wherein an annular transition tank is fixedly sleeved on the periphery of the mixing tank, an annular defoaming tank is fixedly sleeved on the periphery of the annular transition tank, a stirring assembly is installed in the mixing tank, an annular scraper that contacts the tank wall is installed on the inner top of the mixing tank, the annular scraper can be raised and lowered to scrape the glue on the tank wall, the bottom of the mixing tank pumps glue into the annular transition tank through a first glue pumping assembly, a second glue pumping assembly that pumps glue into the annular defoaming tank is installed on the top of the annular transition tank, an annular piston is adapted to be installed in the annular defoaming tank, a plurality of glue outlet holes connected to the second glue pumping assembly are provided at the circumferential bottom of the annular piston, a pair of parallel annular defoaming nets are horizontally fixedly connected to the middle of the annular defoaming tank, a plurality of defoaming rods that rotate circumferentially are installed between the pair of annular defoaming nets, a vacuum pipe is installed on the side wall of the annular defoaming tank, and a glue discharge pipe is provided at the bottom of the annular defoaming tank.

[0006] Preferably, the stirring assembly includes a rotating shaft rotatably connected to the center of the mixing tank, and a plurality of stirring plates are installed on the circumferential side walls of the rotating shaft from top to bottom. A top plate is fixedly installed on the top of the mixing tank, and a first motor is installed on the top plate. The output end of the first motor is connected to the top of the rotating shaft through a pair of first gear transmissions.

[0007] Preferably, both side walls of the stirring plate are provided with multiple radial glue guiding grooves.

[0008] Preferably, vertical cylinders are fixedly mounted on both sides of the top plate, and telescopic ends of the cylinders extend into the mixing tank and are fixedly connected to the annular scraper.

[0009] Preferably, electric push rods are fixedly mounted on both sides of the bottom of the rotating shaft, and fan-shaped scrapers are fixedly mounted on the telescopic ends of the electric push rods, and the fan-shaped scrapers are used to scrape off the rubber material collected at the bottom of the annular scraper and the bottom of the tank.

[0010] Preferably, the first glue pump assembly includes a first glue pump installed at the bottom of the mixing tank, the glue inlet end of the first glue pump is connected to the tank bottom, the glue outlet end of the first glue pump is connected to a pair of glue injection pipes, and the ends of the glue injection pipes are connected to the bottom of the annular transition tank.

[0011] Preferably, the second glue pump assembly includes a second glue pump installed on the top of the annular transition tank, the glue inlet end of the second glue pump is connected to a glue suction tube extending to the bottom of the annular transition tank, an annular tube connected to multiple glue outlet holes is installed in the annular piston, the glue outlet end of the second glue pump is connected to a connecting pipe, and the annular tube and the connecting pipe are connected by a hose.

[0012] Preferably, hydraulic cylinders are fixedly mounted on the tops of both sides of the annular defoaming tank, and the telescopic ends of the hydraulic cylinders extend into the tank and are fixedly connected to the annular pistons.

[0013] Preferably, a second motor is fixedly installed on the side wall of the annular defoaming tank, and the output end of the second motor is fixedly connected to a second gear. A separating ring is serially connected to the middle part of the annular defoaming tank, and the side wall of the separating ring is rotatably connected to a magnetic gear ring, and the magnetic gear ring is meshed with the second gear. An annular groove is provided on the inner wall of the separating ring, and a magnetic ring that is magnetically attracted to the magnetic gear ring is rotatably connected in the annular groove, and a plurality of the defoaming rods are circumferentially fixedly connected to the inner wall of the magnetic ring.

[0014] Preferably, an annular slide rail is installed on the inner side wall of the magnetic gear ring, and the annular slide rail is embedded and slidably installed on the side wall of the separation ring.

[0015] The beneficial effects of the present invention are: 1. The present invention integrates the mixing tank and the defoaming tank into one, and adds a transition tank in the middle. The mixing tank and the annular transition tank are connected by a first pump glue assembly, and the annular transition tank and the annular defoaming tank are connected by a second pump glue assembly. The invention has a small footprint and a simple pipeline layout. The defoaming process can be carried out synchronously during the mixing process, thereby realizing a continuous preparation process with high efficiency.

[0016] 2. By installing the stirring assembly, the glue guide groove, the annular scraper and the fan-shaped scraper, the raw materials are injected into the mixing tank, the first motor is started, the rotating shaft is driven to rotate by a pair of first gears, and then the rubber is evenly mixed by multiple sets of stirring plates. After the mixing is completed, the first glue pump is started to inject the rubber into the annular transition tank through the glue injection pipe, and then the rotation speed of the rotating shaft is increased. The rubber on the stirring plate is thrown out along the multiple glue guide grooves under the centrifugal force and thrown onto the tank wall. Then the cylinder is started to drive the annular scraper to descend, and the rubber collected on the tank wall is scraped to the bottom of the tank, and then a pair of electric push rods are started to drive a pair of fan-shaped scrapers to extend radially, extending to the bottom of the annular scraper and the bottom wall of the tank against each other. Driven by the rotating shaft, the rubber collected at the bottom of the annular scraper and the bottom of the tank is scraped off without affecting the control of the next batching amount.

[0017] 3. By installing an annular piston, multiple glue outlet holes, and a pair of annular defoaming nets, the second glue pump assembly pumps out the rubber in the annular transition tank, pumps it into the annular tube through the connecting pipe and the hose, and then squeezes it out through multiple glue outlet holes and gathers it in the upper half of the annular defoaming tank. The hydraulic cylinder is started to drive the annular piston to descend, and the rubber is squeezed through a pair of annular defoaming nets. Since the mesh holes are smaller than most bubbles, the bubbles burst and are eliminated. Subsequently, the gas in the tank is sucked out through the vacuum tube, and the remaining bubbles burst under negative pressure, so the defoaming is thorough and the effect is good.

[0018] 4. By installing multiple defoaming rods, when the rubber passes through a pair of annular defoaming nets, the second motor is started to drive the second gear to rotate, and then the magnetic gear ring is driven to rotate at high speed. Since the magnetic gear ring and the magnetic ring are in a magnetic state and the magnetic attraction is strong, the multiple defoaming rods are driven to rotate, and the bubbles are broken under the shear force, further improving the defoaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front perspective view of the present invention; Figure 2 A bottom-up stereogram of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the stirring assembly proposed by the present invention; Figure 5 for Figure 3 A schematic diagram of the structure enlargement at point A; Figure 6A schematic diagram of the magnetic ring structure proposed by the present invention; Figure 7 It is a schematic diagram of the rubber material scraping state of the present invention.

[0020] In the figure: 1 annular defoaming tank, 2 magnetic gear ring, 3 annular transition tank, 4 mixing tank, 5 first motor, 6 cylinder, 7 hydraulic cylinder, 8 second rubber pump, 9 connecting pipe, 10 second motor, 11 second gear, 12 vacuum pipe, 13 rubber discharge hose, 14 top plate, 15 rubber injection hose, 16 first rubber pump, 17 annular piston, 18 annular pipe, 19 hose, 20 rubber suction hose, 21 first gear, 22 annular scraper, 23 annular defoaming net, 24 defoaming rod, 25 magnetic ring, 26 separation ring, 27 rotating shaft, 28 stirring plate, 29 fan-shaped scraper, 30 electric push rod, 31 rubber guide groove. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0023] Reference Figure 1-7 A mixing and defoaming system for preparing substrate-free AB glue comprises a mixing tank 4, an annular transition tank 3 is fixedly sleeved on the periphery of the mixing tank 4, an annular defoaming tank 1 is fixedly sleeved on the periphery of the annular transition tank 3, a stirring assembly is installed in the mixing tank 4, the stirring assembly comprises a rotating shaft 27 rotatably connected to the center of the mixing tank 4, a plurality of stirring plates 28 are installed from top to bottom on the circumferential side walls of the rotating shaft 27, a top plate 14 is fixedly installed on the top of the mixing tank 4, a first motor 5 is installed on the top plate 14, an output end of the first motor 5 is connected to the top of the rotating shaft 27 through a pair of first gears 21 for transmission, the mixing tank and the defoaming tank body are integrated into one, a transition tank body is added in the middle, the mixing tank 4 and the annular transition tank 3 are connected by a first pumping glue assembly, and the annular transition tank 3 and the annular defoaming tank 1 are connected by a second pumping glue assembly, the area occupied is small, the pipeline layout is simple, the defoaming process can be carried out synchronously during the mixing process, a continuous preparation process is realized, and the efficiency is high.

[0024] Furthermore, radial multiple rubber guiding grooves 31 are provided on both side walls of the stirring plate 28 , and when the rotation speed of the rotating shaft 27 is increased, the rubber on the stirring plate 28 is thrown out along the multiple rubber guiding grooves 31 under the centrifugal force.

[0025] An annular scraper 22 is installed on the inner top of the mixing tank 4, which contacts the tank wall. The annular scraper 22 can be raised and lowered to scrape off the rubber on the tank wall. Vertical cylinders 6 are fixedly installed on both sides of the top plate 14. The telescopic ends of the cylinders 6 extend into the mixing tank 4 and are fixedly connected to the annular scraper 22. When the cylinders 6 are started, the annular scraper 22 is driven down to scrape the rubber collected on the tank wall to the bottom of the tank.

[0026] Furthermore, electric push rods 30 are fixedly installed on both sides of the bottom of the rotating shaft 27, and fan-shaped scrapers 29 are fixedly installed on the telescopic ends of the electric push rods 30. The fan-shaped scrapers 29 are used to scrape off the rubber material gathered at the bottom of the annular scraper 22 and the bottom of the tank. Starting a pair of electric push rods 30 drives a pair of fan-shaped scrapers 29 to extend radially until they contact the bottom of the annular scraper 22 and the bottom wall of the tank. Driven by the rotating shaft 27, the rubber material gathered at the bottom of the annular scraper 22 and the bottom of the tank is scraped off without affecting the control of the next batching amount.

[0027] The bottom of the mixing tank 4 pumps glue into the annular transition tank 3 through the first glue pumping assembly. The top of the annular transition tank 3 is equipped with a second glue pumping assembly for pumping glue into the annular defoaming tank 1. The first glue pumping assembly includes a first glue pump 16 installed at the bottom of the mixing tank 4. The glue inlet end of the first glue pump 16 is connected to the bottom of the tank. The glue outlet end of the first glue pump 16 is connected to a pair of glue injection pipes 15. The ends of the glue injection pipes 15 are connected to the bottom of the annular transition tank 3. The second glue pumping assembly includes a second glue pump 8 installed at the top of the annular transition tank 3. The glue inlet end of the second glue pump 8 is connected to a glue suction pipe 20 extending to the bottom of the annular transition tank 3. An annular pipe 18 connected to multiple glue outlet holes is installed in the annular piston 17. The glue outlet end of the second glue pump 8 is connected to a connecting pipe 9. The annular pipe 18 and the connecting pipe 9 are connected by a hose 19. The first glue pump 16 is started to inject the glue into the annular transition tank 3 through the glue injection pipe 15. The capacity of the annular transition tank 3 is twice that of the mixing tank 4.

[0028] An annular piston 17 is adapted to be installed in the annular defoaming tank 1, and hydraulic cylinders 7 are fixedly installed on the top of both sides of the annular defoaming tank 1. The telescopic ends of the hydraulic cylinders 7 extend into the tank and are fixedly connected to the annular piston 17. The circumferential bottom of the annular piston 17 is provided with a plurality of glue outlet holes connected to the second glue pumping assembly. A pair of parallel annular defoaming nets 23 are fixedly connected to the middle horizontal of the annular defoaming tank 1. The second glue pumping assembly pumps out the glue in the annular transition tank 3, pumps it into the annular pipe 18 through the connecting pipe 9 and the hose, and then squeezes it out through the plurality of glue outlet holes and gathers in the upper half of the annular defoaming tank 1. The hydraulic cylinder 7 is started to drive the annular piston 17 to descend, and the glue is squeezed through a pair of annular defoaming nets 23. Since the mesh is smaller than most bubbles, the bubbles are ruptured and eliminated.

[0029] A plurality of defoaming rods 24 for circumferential rotation are installed between a pair of annular defoaming nets 23, a second motor 10 is fixedly installed on the side wall of the annular defoaming tank 1, and a second gear 11 is fixedly connected to the output end of the second motor 10, a separator ring 26 is connected in series to the middle part of the annular defoaming tank 1, and a magnetic gear ring 2 is rotatably connected to the side wall of the separator ring 26, and the magnetic gear ring 2 is meshed with the second gear 11, and an annular groove is provided on the inner wall of the separator ring 26, and a magnetic ring 25 magnetically attracted to the magnetic gear ring 2 is rotatably connected in the annular groove, and a plurality of defoaming rods 24 are circumferentially fixedly connected to the inner wall of the magnetic ring 25, and an annular slide rail is installed on the inner wall of the magnetic gear ring 2, and the annular slide rail is embedded and slidably installed on the side wall of the separator ring 26, and the second motor 10 is started to drive the second gear 11 to rotate, and then drive the magnetic gear ring 2 to rotate at a high speed, because the magnetic gear ring 2 and the magnetic ring 25 are in a magnetic state, and the magnetic attraction force is strong, which drives the plurality of defoaming rods 24 to rotate, and the bubbles are broken under the shear force, thereby further improving the defoaming effect.

[0030] A vacuum pipe 12 is installed on the side wall of the annular defoaming tank 1, and a rubber discharge pipe 13 is provided at the bottom of the annular defoaming tank 1. The gas in the tank is sucked through the vacuum pipe 12, and the remaining bubbles are broken under negative pressure, so the defoaming is thorough and the effect is good.

[0031] The raw materials are injected into the mixing tank 4, and the first motor 5 is started. The rotating shaft 27 is driven to rotate through a pair of first gears 21, and then the rubber is evenly mixed through multiple groups of stirring plates 28. After the mixing is completed, the first rubber pump 16 is started to inject the rubber into the annular transition tank 3 through the rubber injection pipe 15, and then the rotation speed of the rotating shaft 27 is increased. The rubber on the stirring plate 28 is thrown out along the multiple rubber guide grooves 31 under the centrifugal force and thrown onto the tank wall. Then the cylinder 6 is started to drive the annular scraper 22 to descend, and the rubber collected on the tank wall is scraped to the bottom of the tank. Then, a pair of electric push rods 30 are started to drive a pair of fan-shaped scrapers 29 to extend radially, extending to the bottom of the annular scraper 22 and the bottom wall of the tank. Driven by the rotating shaft 27, the rubber collected at the bottom of the annular scraper 22 and the bottom of the tank is scraped off without affecting the control of the next batching amount.

[0032] Start the second glue pump 8, pump out the glue in the annular transition tank 3 through the glue suction pipe 20, pump it into the annular pipe 18 through the connecting pipe 9 and the hose, and then squeeze it out through multiple glue outlet holes and gather in the upper half of the annular defoaming tank 1. Start the hydraulic cylinder 7 to drive the annular piston 17 to descend, squeeze the glue through a pair of annular defoaming nets 23. Since the mesh is smaller than most bubbles, the bubbles burst and are eliminated. Start the second motor 10 to drive the second gear 11 to rotate, and then drive the magnetic gear ring 2 to rotate at a high speed. Since the magnetic gear ring 2 and the magnetic ring 25 are in a magnetic state and the magnetic attraction is strong, it drives the multiple defoaming rods 24 to rotate, and the bubbles burst under the shear force, further improving the defoaming effect. Subsequently, the gas in the tank is sucked through the vacuum tube 12, and the remaining bubbles burst under negative pressure, so that the defoaming is thorough and effective.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mixed defoaming system for preparing substrate-free AB glue, comprising a mixing tank (4), characterized in that: The mixing tank (4) is provided with an annular transition tank (3) fixedly mounted on its periphery, and an annular defoaming tank (1) is fixedly mounted on its periphery. A stirring assembly is installed in the mixing tank (4). An annular scraper (22) abutting against the tank wall is installed on the inner top of the mixing tank (4). The annular scraper (22) can be raised and lowered to scrape off the rubber material on the tank wall. The bottom of the mixing tank (4) pumps rubber into the annular transition tank (3) through a first rubber pump assembly. The top of the annular transition tank (3) is provided with a rubber pump assembly for pumping rubber into the annular defoaming tank (1). A second glue pump assembly, wherein an annular piston (17) is adapted to be installed in the annular defoaming tank (1), a plurality of glue outlet holes connected to the second glue pump assembly are provided at the circumferential bottom of the annular piston (17), a pair of parallel annular defoaming nets (23) are horizontally fixedly connected to the middle of the annular defoaming tank (1), a plurality of circumferentially rotatable defoaming rods (24) are installed between the pair of annular defoaming nets (23), a vacuum pipe (12) is installed on the side wall of the annular defoaming tank (1), and a glue discharge pipe (13) is provided at the bottom of the annular defoaming tank (1).

2. The hybrid defoaming system prepared by substrate-free AB glue according to claim 1, characterized in that: The stirring assembly comprises a rotating shaft (27) rotatably connected to the center of the mixing tank (4); a plurality of stirring plates (28) are mounted on the circumferential side wall of the rotating shaft (27) from top to bottom; a top plate (14) is fixedly mounted on the top of the mixing tank (4); a first motor (5) is mounted on the top plate (14); and an output end of the first motor (5) is transmission-connected to the top of the rotating shaft (27) via a pair of first gears (21).

3. The hybrid defoaming system prepared by substrate-free AB glue according to claim 2, characterized in that: The side walls on both sides of the stirring plate (28) are provided with multiple radial glue guiding grooves (31).

4. The hybrid defoaming system prepared by substrate-free AB glue according to claim 2, characterized in that: Vertical cylinders (6) are fixedly mounted on both sides of the top plate (14), and the telescopic ends of the cylinders (6) extend into the mixing tank (4) and are fixedly connected to the annular scraper (22).

5. The hybrid defoaming system prepared by substrate-free AB glue according to claim 2, characterized in that: Electric push rods (30) are fixedly mounted on both sides of the bottom of the rotating shaft (27), and fan-shaped scrapers (29) are fixedly mounted on the telescopic ends of the electric push rods (30). The fan-shaped scrapers (29) are used to scrape off the rubber material collected at the bottom of the annular scraper (22) and the bottom of the tank.

6. The hybrid defoaming system prepared by substrate-free AB glue according to claim 1, characterized in that: The first glue pump assembly comprises a first glue pump (16) installed at the bottom of the mixing tank (4), the glue inlet end of the first glue pump (16) being connected to the tank bottom, the glue outlet end of the first glue pump (16) being connected to a pair of glue injection pipes (15), the ends of the glue injection pipes (15) being connected to the bottom of the annular transition tank (3).

7. A mixed defoaming system prepared by substrate-free AB glue according to claim 1, characterized in that: The second glue pump assembly comprises a second glue pump (8) installed on the top of the annular transition tank (3); the glue inlet end of the second glue pump (8) is connected to a glue suction pipe (20) extending to the bottom of the annular transition tank (3); an annular pipe (18) connected to a plurality of glue outlet holes is installed in the annular piston (17); the glue outlet end of the second glue pump (8) is connected to a connecting pipe (9); the annular pipe (18) and the connecting pipe (9) are connected via a hose (19).

8. The hybrid defoaming system prepared by substrate-free AB glue according to claim 1, characterized in that: Hydraulic cylinders (7) are fixedly mounted on the tops of both sides of the annular defoaming tank (1), and telescopic ends of the hydraulic cylinders (7) extend into the tank and are fixedly connected to an annular piston (17).

9. The hybrid defoaming system prepared by substrate-free AB glue according to claim 1, characterized in that: A second motor (10) is fixedly mounted on the side wall of the annular defoaming tank (1), an output end of the second motor (10) is fixedly connected to a second gear (11), a separator ring (26) is serially connected to the middle of the annular defoaming tank (1), a magnetic gear ring (2) is rotatably connected to the side wall of the separator ring (26), the magnetic gear ring (2) is meshed with the second gear (11), an annular groove is provided on the inner wall of the separator ring (26), a magnetic ring (25) magnetically attracted to the magnetic gear ring (2) is rotatably connected in the annular groove, and a plurality of defoaming rods (24) are circumferentially fixedly connected to the inner wall of the magnetic ring (25).

10. A mixed defoaming system prepared by substrate-free AB glue according to claim 9, characterized in that: An annular slide rail is installed on the inner side wall of the magnetic gear ring (2), and the annular slide rail is embedded and slidably installed on the side wall of the separation ring (26).

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