Acrylic acid structural adhesive defoaming equipment

Abstract

The utility model discloses acrylic acid structural adhesive defoaming equipment which comprises a stirring outer barrel and a supporting plate fixedly connected to the bottom of the stirring outer barrel, the interior of the stirring outer barrel is connected with one end of a spring, the other end of the spring is fixedly connected to the exterior of a stirring inner barrel, and a stirring shaft penetrates through an inner cavity of the stirring inner barrel; a fixing ring is arranged at the top of the stirring shaft, one end of a connecting rod is fixedly mounted on the fixing ring, and the other end of the connecting rod is fixedly connected with a scraper; one side of the scraping plate is attached to the inner side wall of the stirring inner cylinder, a square grid is arranged on the other side of the scraping plate and is perpendicular to the scraping plate, a stirring disc is arranged on the stirring shaft, and an upper blade and a lower blade are arranged on the stirring disc; according to the utility model, the motor drives the stirring shaft to rotate, the stirring shaft drives the scraper to rotate, the scraper drives the square grid to rotate, and the square grid also rotates while stirring, so that on one hand, the structural adhesive can be uniformly stirred by the square grid, and on the other hand, bubbles in the structural adhesive can be further eliminated.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive technology, specifically, it relates to a defoaming device for acrylic structural adhesive. Background Technology

[0002] Acrylic structural adhesives are widely used in industry and daily life. Stirring is a crucial step in the production process; however, improper stirring or excessively fast stirring speed can easily trap air into the adhesive, forming bubbles. The high viscosity of acrylic structural adhesives makes it difficult to eliminate these bubbles. At high viscosity, bubbles are trapped within the adhesive, making it difficult for them to rise to the surface and burst. The formation of bubbles affects the uniformity of the adhesive layer, reducing its bond strength and causing detachment or separation at the bonded surfaces, thus impacting the overall performance of the adhesive. Furthermore, bubbles leave marks after drying or curing, affecting the product's aesthetics. In long-term use, bubbles in acrylic structural adhesives can affect their weather resistance, corrosion resistance, and high-temperature resistance. After curing, bubbles leave micropores that can easily allow moisture, gas, or other harmful substances to penetrate, thus affecting the long-term stability and durability of the adhesive.

[0003] Patent CN212789882U discloses a defoaming stirring device, which uses a driving component to drive a rotating shaft and spiral blades to rotate synchronously in a storage tank. This causes the potting compound to rise and then fall in the tank, ensuring that the rotating shaft and spiral blades can stir and defoam the potting compound under the drive of the driving component. The potting compound rises under the conveying action of the spiral blades and then falls away from the edge of the spiral blades. In this patent, the glue falls like a waterfall after falling away from the edge of the spiral blades. Under the action of force, the falling glue will form new bubbles. Moreover, the defoaming effect is not good because it is only defoamed by rising and falling the glue in the tank.

[0004] In the aforementioned patent's technical solution, new bubbles are generated under the action of force after the spiral blades descend, leading to problems such as poor defoaming effect. Utility Model Content

[0005] To address the technical problem in existing technologies where, after mixing, the adhesive detaches from the edge of the spiral blades, and as it descends, new air bubbles are generated under the action of force, this invention provides an acrylic structural adhesive defoaming device.

[0006] The objective of this utility model can be achieved through the following technical solution: An acrylic structural adhesive defoaming device includes a stirring outer cylinder and a support plate fixedly connected to the bottom of the stirring outer cylinder. One end of a spring is connected to the inner side wall and bottom of the stirring outer cylinder, and the other end of the spring is fixedly connected to the outer side wall and bottom of the stirring inner cylinder. A stirring shaft is provided through the inner cavity of the stirring inner cylinder. A fixing ring is provided at the top of the stirring shaft. One end of a connecting rod is fixedly installed on the fixing ring, and the other end of the connecting rod is fixedly connected to a scraper. One side of the scraper is fitted against the inner side wall of the stirring inner cylinder, and the other side of the scraper is provided with a grid, which is perpendicular to the scraper.

[0007] Furthermore, the bottom of the stirring shaft is fixedly connected to the stirring plate, and upper and lower blades are fixedly installed around the stirring plate, with the upper and lower blades being staggered.

[0008] Furthermore, a fixed base is fixedly connected to the top of the support plate, a fixed shaft is installed on the top of the fixed base, a sleeve is movably installed on the fixed shaft, one end of a fixed rod is fixedly connected to the middle of the outer side of the sleeve, and the other end of the fixed rod is fixedly connected to the side of the motor; the output end of the motor is connected to the stirring shaft.

[0009] Furthermore, the fixed seat is vertically arranged with the support plate, the bottom of the sleeve is empty and the inside of the sleeve is a cavity, the bottom of the sleeve is connected to the top of the fixed shaft, the fixed shaft is movably installed inside the cavity of the sleeve, a knob is provided on one outer bottom of the sleeve, and a threaded rod is fixedly connected to the knob, the threaded rod and the sleeve are threadedly connected.

[0010] Furthermore, the motor is vertically positioned to the fixed rod, and the stirring shaft rotatably extends from the top of the stirring inner cylinder into the inner cavity of the stirring inner cylinder.

[0011] Furthermore, the bottom of the support plate is provided with an output pipe, one end of which passes through the support plate, the bottom of the outer stirring cylinder, and the bottom of the inner stirring cylinder.

[0012] The beneficial effects of this utility model are:

[0013] 1) This utility model uses a motor to drive the stirring shaft to rotate, the stirring shaft to drive the stirring disc to rotate, the stirring disc to drive the upper blade and the lower blade to rotate, and at the same time the stirring shaft to drive the scraper to rotate, the scraper to drive the grid to rotate. While stirring, the grid also rotates. The grid can make the structural adhesive evenly mixed and further eliminate air bubbles in the structural adhesive.

[0014] 2) This utility model improves the mixing efficiency by staggering the upper and lower blades, making the structural adhesive more uniformly mixed; at the same time, the scraper can clean the adhesive in the mixing inner cylinder in time, so that the structural adhesive is more fully mixed and the generation of air bubbles is reduced; under the action of mixing, the spring is driven to make the mixing inner cylinder shake in the mixing outer cylinder, so that the structural adhesive in the mixing inner cylinder vibrates, thereby further eliminating air bubbles in the structural adhesive. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the position of the spring in this utility model;

[0018] Figure 3 This is a detailed internal view of the stirring inner cylinder of this utility model;

[0019] Figure 4 This is a front view of the present invention;

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Support plate; 2. Fixing base; 201. Knob; 202. Fixing shaft; 203. Sleeve; 3. Fixing rod; 4. Motor; 5. Stirring shaft; 501. Fixing ring; 502. Connecting rod; 503. Scraper; 504. Grid; 6. Outer stirring cylinder; 7. Output pipe; 8. Inner stirring cylinder; 9. Spring; 10. Stirring disc; 1001. Lower blade; 1002. Upper blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 2As shown, an acrylic structural adhesive defoaming device includes a mixing outer cylinder 6 and a support plate 1 fixedly connected to the bottom of the mixing outer cylinder 6; the top of the support plate 1 is fixedly connected to the bottom of a fixing seat 2, the fixing seat 2 is perpendicular to the support plate 1, a fixing shaft 202 is installed on the top of the fixing seat 2, a sleeve 203 is movably installed on the fixing shaft 202, the bottom of the sleeve 203 is hollow and the inside of the sleeve 203 is a cavity, the fixing shaft 202 is movably installed inside the cavity of the sleeve 203, a knob 201 is provided on the bottom of one outer side of the sleeve 203, a threaded rod is fixedly connected to the knob 201, and the threaded rod and the sleeve 203 are threadedly connected.

[0024] One end of a spring 9 is connected to the inner side wall and bottom of the outer stirring cylinder 6, and the other end of the spring 9 is fixedly connected to the outer side wall and bottom of the inner stirring cylinder 8. The inner wall of the outer stirring cylinder 6 and the outer wall of the inner stirring cylinder 8 form a cavity, so that the inner stirring cylinder 8 vibrates in the cavity under the force of the spring 9.

[0025] By rotating the knob 201, the threaded rod rotates in the thread of the sleeve 203, disengaging from the surface of the fixed shaft 202, causing the sleeve 203 to move up and down on the fixed shaft 202. Once it reaches the designated position, tighten the knob 201 to make the threaded rod press tightly against the surface of the fixed shaft 202, thereby fixing the sleeve 203 in the designated position.

[0026] One end of the fixing rod 3 is fixedly connected to the middle of the outer side of the sleeve 203, and the other end of the fixing rod 3 is fixedly connected to the side of the motor 4; the motor 4 is set perpendicular to the fixing rod 3, and the output end of the motor 4 is connected to the stirring shaft 5. The stirring shaft 5 rotatably passes through the inner cavity of the stirring inner cylinder 8 from the top of the stirring inner cylinder 8.

[0027] Please see Figure 3 As shown, a fixing ring 501 is fixedly provided on the top of the stirring shaft 5, and one end of a connecting rod 502 is fixedly installed on the fixing ring 501. In this embodiment, two connecting rods 502 are provided, and the two connecting rods 502 are arranged opposite to each other. The connecting rods 502 are arranged at an angle. The other ends of the two connecting rods 502 are fixedly connected to scrapers 503. The scrapers 503 are arranged longitudinally, and the side of the two scrapers 503 near the stirring inner cylinder 8 is fitted against the inner wall of the stirring inner cylinder 8.

[0028] Two scrapers 503 are fixedly connected to a grid 504 on their opposite sides. The grid 504 has a rectangular structure and is set perpendicular to the scrapers 503. In this embodiment, there are six grids 504, which are staggered vertically on the two scrapers 503.

[0029] The bottom of the stirring shaft 5 is fixedly connected to the stirring plate 10. The upper blade 1002 and the lower blade 1001 are fixedly installed around the stirring plate 10. The upper blade 1002 and the lower blade 1001 are staggered. The upper blade 1002 and the lower blade 1001 are both L-shaped, and there is a distance of half a blade between adjacent upper blades 1002 and lower blades 1001.

[0030] The motor 4 drives the stirring shaft 5 to rotate, the stirring shaft 5 drives the stirring plate 10 to rotate, the stirring plate 10 drives the upper blade 1002 and the lower blade 1001 to rotate, and at the same time the stirring shaft 5 drives the scraper 503 to rotate, and the scraper 503 drives the grid 504 to rotate.

[0031] By staggering the upper blade 1002 and the lower blade 1001, the mixing efficiency is improved, and the structural adhesive is mixed more evenly. At the same time, the scraper 503 can clean the adhesive in the mixing cylinder 8 in a timely manner, so that the structural adhesive is mixed more thoroughly.

[0032] Under the force of stirring, the spring 9 is driven, causing the inner stirring cylinder 8 to shake inside the outer stirring cylinder 6, which in turn vibrates the structural adhesive in the inner stirring cylinder 8, thereby eliminating air bubbles in the structural adhesive. At the same time as stirring, the grid 504 also rotates. The grid 504 can not only make the structural adhesive evenly mixed, but also further eliminate air bubbles in the structural adhesive. Furthermore, for better defoaming effect, defoaming needles can be set in the grid 504 to puncture the air bubbles in the structural adhesive while stirring, thus achieving the defoaming effect.

[0033] Please see Figure 2 and Figure 4 As shown, the bottom of the support plate 1 is provided with an output pipe 7, one end of which passes through the support plate 1, the bottom of the outer stirring cylinder 6, and the bottom of the inner stirring cylinder 8; furthermore, a control valve can be installed on the output pipe 7 to control the opening and closing of the output pipe 7.

[0034] To facilitate understanding of the above technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below: When using this utility model, firstly, by adjusting the knob 201, the sleeve 203 moves up and down on the fixed shaft 202, and after the position of the mixing plate 10 reaches the bottom of the structural adhesive, the knob 201 is tightened, so that the threaded rod tightly abuts against the fixed shaft 202, thereby fixing the sleeve 203.

[0035] The motor 4 drives the stirring shaft 5 to rotate, which in turn drives the stirring disc 10 to rotate. The stirring disc 10 then drives the upper blade 1002 and the lower blade 1001 to rotate. Simultaneously, the stirring shaft 5 drives the scraper 503 to rotate, which in turn drives the grid 504 to rotate. While stirring, the grid 504 defoams and makes the structural adhesive more evenly mixed. Under the force of stirring, the spring 9 causes the inner stirring cylinder 8 to sway inside the outer stirring cylinder 6, achieving a vibration effect and further eliminating air bubbles in the structural adhesive. After thorough mixing, the control valve is opened, and the well-mixed and defoamed structural adhesive flows out from the output pipe 7.

[0036] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. An acrylic structural adhesive bubble removing device, comprising a stirring outer cylinder (6) and a support plate (1) fixedly connected to the bottom of the stirring outer cylinder (6), characterized in that: one end of a spring (9) is connected to the inner side wall and the bottom of the stirring outer cylinder (6), the other end of the spring (9) is fixedly connected to the outer side wall and the bottom of a stirring inner cylinder (8), a stirring shaft (5) is provided through the inner cavity of the stirring inner cylinder (8), a fixed ring (501) is provided at the top of the stirring shaft (5), one end of a connecting rod (502) is fixedly installed on the fixed ring (501), the other end of the connecting rod (502) is fixedly connected to a scraper (503), one side of the scraper (503) is arranged in close contact with the inner side wall of the stirring inner cylinder (8), the other side of the scraper (503) is provided with a square grid (504), and the square grid (504) is arranged perpendicularly to the scraper (503).

2. The device for removing bubbles from an acrylic structural adhesive according to claim 1, wherein: The bottom of the stirring shaft (5) is fixedly connected to a stirring disc (10), upper blades (1002) and lower blades (1001) are fixedly installed around the stirring disc (10), and the upper blades (1002) and the lower blades (1001) are arranged staggered.

3. The device for removing bubbles from an acrylic structural adhesive according to claim 1, wherein: A fixed seat (2) is fixedly connected to the top of the support plate (1), a fixed shaft (202) is installed on the top of the fixed seat (2), a sleeve (203) is movably installed on the fixed shaft (202), one end of a fixed rod (3) is fixedly connected to the outer side of the sleeve (203), the other end of the fixed rod (3) is fixedly connected to the side of a motor (4), and the output end of the motor (4) is connected to the stirring shaft (5).

4. The device for removing bubbles from an acrylic structural adhesive according to claim 3, wherein: The fixed seat (2) is arranged perpendicularly to the support plate (1), the bottom of the sleeve (203) is hollow, the inside of the sleeve (203) is a cavity, the bottom of the sleeve (203) is connected to the top of the fixed shaft (202), the fixed shaft (202) is movably installed in the cavity of the sleeve (203), a knob (201) is arranged on one outer side of the sleeve (203), a threaded rod is fixedly connected to the knob (201), and the threaded rod is in threaded connection with the sleeve (203).

5. The device for removing bubbles from an acrylic structural adhesive according to claim 3, wherein: The motor (4) and the fixed rod (3) are arranged perpendicularly, and the stirring shaft (5) is rotatably provided through the top of the stirring inner cylinder (8) into the inner cavity of the stirring inner cylinder (8).

6. The device for removing bubbles from an acrylic structural adhesive according to claim 3, wherein: The bottom of the support plate (1) is provided with an output pipe (7), one end of the output pipe (7) penetrates through the bottom of the support plate (1), the bottom of the stirring outer cylinder (6) and the bottom of the stirring inner cylinder (8).

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