Preparation device of condensation type two-component junction box pouring sealant

Abstract

The utility model relates to the technical field of pouring sealant preparation, and discloses a preparation device for a condensed type two-component junction box pouring sealant, which comprises a base, and mounting tables are arranged on the left side and the right side of the top of the base; the main shaft is inserted into the assembling block through a bearing, a stirring kettle is mounted at the inner end of the main shaft through a flange, and a motor is mounted at the top of the bracket; and the fan-shaped plate is movably installed in the hinge seat through a bearing, the left end of the main shaft is coaxially connected with a gear, a rotor of the motor is coaxially connected with a driving rod, and the outer end of the driving rod is provided with a transmission connecting rod through a bearing. According to the preparation device of the condensation type two-component junction box pouring sealant, a motor drives a driving rod to rotate, so that a transmission connecting rod can drive a fan-shaped plate to swing left and right in a reciprocating manner, and a gear can drive a main shaft and a stirring kettle to swing left and right, so that bubbles in the mixing process can rise to the surface; and the subsequent vacuum defoaming operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of preparation of potting adhesives for junction boxes, and particularly relates to a preparation device for a condensation-type two-component potting adhesive for junction boxes. Background Technique

[0002] The condensation-type two-component potting adhesive for junction boxes is a material used for sealing electronic components and junction boxes. It usually consists of two components: a resin matrix and a curing agent. This potting adhesive can cure at room temperature or slightly above room temperature after mixing, forming a tough rubber-like or plastic-like sealing layer. The characteristics of the condensation-type potting adhesive include good electrical insulation, heat resistance, chemical resistance, aging resistance, and excellent adhesion performance. They can effectively protect electronic components from dust, moisture, and other potential damage factors.

[0003] Common preparation devices for condensation-type two-component potting adhesives for junction boxes include a raw material storage and metering system, a mixing system, a potting system, and a post-curing treatment system. The stirring kettle is the key device for potting adhesive preparation. When preparing the potting adhesive, various raw materials need to be proportioned first and then put into the interior of the stirring kettle for mixing. However, in this way, since the stirring blades of the stirring kettle can only drive the potting adhesive raw materials to mix circumferentially during rotation, and in order to improve the production quality of the potting adhesive after stirring, defoaming is carried out by vacuum stirring after stirring. The simple stirring method cannot generate sufficient shear force on the bubbles and some tiny bubbles inside the potting adhesive, thus reducing the quality of potting adhesive preparation and not meeting the working requirements of potting adhesive preparation. Therefore, a preparation device for a condensation-type two-component potting adhesive for junction boxes is proposed. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a preparation device for a condensation-type two-component potting adhesive for junction boxes to solve the technical problem that the simple stirring method cannot generate sufficient shear force on the bubbles and some tiny bubbles inside the potting adhesive, thus reducing the quality of potting adhesive preparation.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A preparation device for a condensation-type two-component potting adhesive for junction boxes, comprising:

[0008] A base, mounting platforms are respectively installed on the left and right sides of the top of the base. Inner sides of the tops of the mounting platforms are respectively connected with vertical plates. The interiors of the vertical plates are all hollow structures. Assembly blocks are respectively inserted in the middle positions of the interiors of the vertical plates. First springs are respectively connected to the upper and lower sides of the assembly blocks;

[0009] The main shaft is inserted into the interior of the assembly block through bearings. The inner end of the main shaft is equipped with a stirring kettle through a flange. A bracket is connected to the front side of the left mounting table, and a motor is installed at the top of the bracket. A hinge seat is installed on the left side of the top of the left mounting table;

[0010] The sector plate is movably installed in the interior of the hinge seat through a bearing. The left end of the main shaft is coaxially connected with a gear. The top of the sector plate is engaged with the gear through a tooth block. The rotor of the motor is coaxially connected with a driving rod. The outer end of the driving rod is equipped with a transmission connecting rod through a bearing, and the outer ends of the transmission connecting rods are connected to the corresponding positions on the left side of the sector plate through bearings.

[0011] Preferably, the number of the first springs is 1-3 groups. The outer ends of the first springs are connected to the corresponding positions inside the vertical plate. The first springs are all made of steel, ensuring the strength and elasticity of the first springs.

[0012] Preferably, sliding grooves are provided on the front and rear sides inside the vertical plate. Sliders are inserted into the sliding grooves, and the inner sides of the sliders are connected to the corresponding positions of the assembly block. The sliding grooves and the sliders are both provided with a convex shape, improving the stability of the assembly block during up and down movement.

[0013] Preferably, a through groove is provided at the middle position inside the base. A second spring is connected inside the through groove. The number of the second springs is 2-4 groups. The top ends of the second springs are all connected with an arc-shaped supporting plate.

[0014] Preferably, a bottom rod is connected to the middle position at the bottom of the stirring kettle. The bottom end of the bottom rod is installed with a roller through a bearing. The bottom of the roller is in contact with the surface of the arc-shaped supporting plate, enabling auxiliary support through the arc-shaped supporting plate when the stirring kettle swings left and right.

[0015] Preferably, counterweight seats are installed on the left and right sides of the front and rear parts of the base. The lengths of the counterweight seats are all greater than the width of the base, improving the stability of the base and preventing the problem of the base shaking due to the change of the center of gravity when the stirring kettle swings.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a preparation device for a condensation-type two-component junction box potting adhesive, having the following beneficial effects:

[0018] The preparation device for the condensation-type two-component junction box potting adhesive drives the rotation of the driving rod through a motor, thereby driving the left and right reciprocating swing of the sector plate through the transmission connecting rod, enabling the left and right swing of the main shaft and the stirring kettle driven by the gear, and further driving the stirring kettle to swing synchronously during stirring. At the same time, due to the presence of the first spring, during the swinging process of the stirring kettle, the assembly block will move up and down due to the influence of the center of gravity change, causing the potting adhesive raw materials inside the stirring kettle to swing and vibrate while being stirred. This can make the bubbles in the mixing process rise to the surface for removal in the subsequent vacuum environment, facilitating the subsequent vacuum defoaming operation. Moreover, the left and right shaking can promote the aggregation and movement of bubbles to reduce the possibility of bubbles being trapped inside the material during the curing process, thereby improving the preparation quality of the potting adhesive. The up and down vibration can break the bubbles in the potting adhesive raw materials and prompt them to rise to the surface. This vibration can destroy the stability of the bubbles, causing them to rupture and release the contained gas, and further effectively eliminating the stubborn bubbles inside the potting adhesive and the tiny bubbles in the bubble clusters, thus further optimizing the defoaming effect and reducing the pores and defects in the potting adhesive finished product, improving the quality of the potting adhesive preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic top view of the mounting table of the present invention;

[0021] Figure 3 is a schematic cross-sectional view of the vertical plate of the present invention;

[0022] Figure 4 is a schematic diagram of the internal structure of the base and the arc-shaped supporting plate of the present invention.

[0023] In the figure: 1, base; 2, mounting table; 3, vertical plate; 31, chute; 32, slider; 4, assembly block; 41, first spring; 5, main shaft; 6, stirring kettle; 7, bracket; 8, motor; 9, hinge seat; 10, sector plate; 11, gear; 12, driving rod; 13, transmission connecting rod; 14, bottom rod; 15, roller; 16, through groove; 17, second spring; 18, arc-shaped supporting plate; 19, counterweight seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The utility model provides a technical solution, a preparation device for a condensation type two-component junction box potting adhesive, including a base 1, a mounting table 2, a vertical plate 3, a chute 31, a slider 32, an assembly block 4, a first spring 41, a main shaft 5, a stirring kettle 6, a bracket 7, a motor 8, a hinge seat 9, a sector plate 10, a gear 11, a driving rod 12, a transmission connecting rod 13, a bottom rod 14, a roller 15, a through groove 16, a second spring 17, an arc-shaped supporting plate 18 and a counterweight seat 19:

[0026] Please refer to Figure 1 , mounting tables 2 are installed on both the left and right sides of the top of the base 1, inner sides of the tops of the mounting tables 2 are both connected with vertical plates 3, the interiors of the vertical plates 3 are both hollow structures, please refer to Figure 2 , assembly blocks 4 are inserted in the middle positions of the interiors of the vertical plates 3, please refer to Figure 3 , first springs 41 are connected to both the upper and lower sides of the assembly block 4, the number of the first springs 41 is 1 - 3 groups, outer ends of the first springs 41 are both connected with corresponding positions inside the vertical plates 3, and the first springs 41 are all made of steel;

[0027] Please refer to Figure 2 , the main shaft 5 is inserted inside the assembly block 4 through a bearing, please refer to Figure 3 , chutes 31 are opened on both the front and rear sides of the interior of the vertical plate 3, sliders 32 are inserted inside the chutes 31, and inner sides of the sliders 32 are both connected with corresponding positions of the assembly block 4, and the shapes of the chutes 31 and the sliders 32 are both convex-shaped, please refer to Figure 1 , the inner end of the main shaft 5 is installed with a stirring kettle 6 through a flange, please refer to Figure 2 , the front side of the left mounting table 2 is connected with a bracket 7, the top of the bracket 7 is installed with a motor 8, and the left side of the top of the left mounting table 2 is installed with a hinge seat 9;

[0028] The sector plate 10 is movably installed inside the hinge seat 9 through bearings. The left end of the main shaft 5 is coaxially connected with a gear 11. The top of the sector plate 10 is meshed with the gear 11 through a tooth block. The rotor of the motor 8 is coaxially connected with a driving rod 12. The outer end of the driving rod 12 is provided with a transmission connecting rod 13 through a bearing, and the outer ends of the transmission connecting rods 13 are respectively connected with the corresponding positions on the left side of the sector plate 10 through bearings. Before stirring, the raw materials of the potting adhesive are proportioned according to a ratio. The raw material proportioning includes: Component A: 50 - 60 parts of α,ω-dihydroxypolydimethylsiloxane, 40 - 50 parts of thermally conductive and flame-retardant filler, 5 - 10 parts of hydroxyl silicone oil; Component B: 60 - 80 parts of polydimethylsiloxane, 10 - 20 parts of cross-linking agent, 5 - 10 parts of coupling agent, 0.5 - 2 parts of catalyst, and the mixing ratio of A:B is 6:1 (weight ratio). At the same time, a filler with high thermal conductivity and flame-retardant performance is selected and added to Component A of the sealant, and a compound silane auxiliary agent is added to Component B and used in a certain proportion. Then the proportioned raw materials are put into the stirring kettle 6. Then the motor 8 is started. The rotation of the driving rod 12 is driven by the motor 8, so that the sector plate 10 can be driven to swing left and right through the transmission connecting rod 13. Thus, the main shaft 5 and the stirring kettle 6 can be driven to swing left and right through the gear 11. Furthermore, the stirring kettle 6 can be driven to swing synchronously during stirring. At the same time, due to the existence of the first spring 41, during the swinging process of the stirring kettle 6, the assembly block 4 will be driven to move up and down due to the influence of the center of gravity change, so that the potting adhesive raw materials inside the stirring kettle 6 will swing and vibrate while being stirred. Thus, the bubbles in the mixing process can rise to the surface, so as to be removed in the subsequent vacuum environment, facilitating the subsequent vacuum defoaming operation. And the left and right shaking can promote the aggregation and movement of bubbles, so as to reduce the possibility of bubbles being trapped inside the material during the curing process, thereby improving the preparation quality of the potting adhesive. The up and down vibration can break the bubbles in the potting adhesive raw materials and promote them to rise to the surface. This vibration can destroy the stability of the bubbles, cause them to rupture and release the contained gas, and thus can more effectively eliminate those stubborn bubbles inside the potting adhesive and the tiny bubbles in the bubble clusters, further optimizing the defoaming effect, reducing the pores and defects in the potting adhesive finished product, and improving the quality of the potting adhesive preparation. And because a filler with high thermal conductivity and flame-retardant performance is selected and added to Component A of the sealant, and a compound silane auxiliary agent is added to Component B during the raw material proportioning, Component A has a low viscosity and good leveling performance. At the same time, the thermal conductivity is above 0.3, the flame-retardant performance reaches V-0 level, and the adhesion and weather resistance are not affected. So that even when the potting adhesive is exposed outdoors for a long time, even in high-irradiation, high-temperature and high-humidity weather with strong sunlight, it can still maintain good elasticity and sealing performance, improving the production quality of the potting adhesive;

[0029] Please refer to Figure 4, a through groove 16 is provided at the middle position inside the base 1, a second spring 17 is connected inside the through groove 16, the number of the second springs 17 is 2 - 4 groups, the top ends of the second springs 17 are all connected with an arc-shaped supporting plate 18, a bottom rod 14 is connected to the middle position at the bottom of the mixing kettle 6, a roller 15 is installed at the bottom end of the bottom rod 14 through a bearing, and the bottom of the roller 15 is in contact with the surface of the arc-shaped supporting plate 18, so that when the mixing kettle 6 swings left and right, it can be supported by the arc-shaped supporting plate 18. Please refer to Figure 1 , weight seats 19 are installed on the left and right sides of the front and rear parts of the base 1, and the lengths of the weight seats 19 are all greater than the width of the base 1, which improves the stability of the base 1 and prevents the problem that the base 1 shakes due to the change of the center of gravity when the mixing kettle 6 swings.

[0030] In this solution, the motor 8 drives the rotation of the driving rod 12, so that the left and right reciprocating swing of the sector plate 10 can be driven through the transmission connecting rod 13, so that the left and right swing of the main shaft 5 and the mixing kettle 6 can be driven through the gear 11. Furthermore, the mixing kettle 6 can be driven to swing synchronously during stirring. At the same time, due to the existence of the first spring 41, during the swing of the mixing kettle 6, the assembly block 4 will be driven to move up and down due to the influence of the change of the center of gravity, so that the potting glue raw material inside the mixing kettle 6 swings and vibrates while being stirred, so that the bubbles in the mixing process can rise to the surface, so as to be removed in the subsequent vacuum environment, facilitating the subsequent vacuum defoaming operation. And the left and right shaking can promote the aggregation and movement of bubbles, so as to reduce the possibility of bubbles being trapped inside the material during the curing process, thereby improving the preparation quality of the potting glue. And the up and down vibration can break the bubbles in the potting glue raw material and promote them to rise to the surface. This vibration can destroy the stability of the bubbles, cause them to break and release the contained gas, and then can more effectively eliminate those stubborn bubbles inside the potting glue and the tiny bubbles in the bubble clusters, thereby further optimizing the defoaming effect, reducing the pores and defects in the potting glue finished product, and improving the preparation quality of the potting glue.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A preparation device for a condensation-type two-component terminal box potting adhesive, characterized in that, Including: A base (1), on the top of the base (1), mounting platforms (2) are installed on both the left and right sides. Inside the top of the mounting platforms (2), vertical plates (3) are connected. The interiors of the vertical plates (3) are hollow structures. At the middle positions inside the vertical plates (3), fitting blocks (4) are inserted. On the upper and lower sides of the fitting blocks (4), first springs (41) are connected. A main shaft (5), which is inserted into the interior of the fitting block (4) through a bearing. The inner end of the main shaft (5) is installed with a stirring kettle (6) through a flange. On the front side of the left mounting platform (2), a bracket (7) is connected. On the top of the bracket (7), a motor (8) is installed. On the left side of the top of the left mounting platform (2), a hinge seat (9) is installed. A sector plate (10), which is movably installed inside the hinge seat (9) through a bearing. The left end of the main shaft (5) is coaxially connected with a gear (11). The top of the sector plate (10) is meshed with the gear (11) through a toothed block. The rotor of the motor (8) is coaxially connected with a driving rod (12). On the outer end of the driving rod (12), a transmission connecting rod (13) is installed through a bearing, and the outer ends of the transmission connecting rod (13) are respectively connected with the corresponding positions on the left side of the sector plate (10) through bearings.

2. The preparation device of a condensation-type two-component junction box potting adhesive according to claim 1, wherein: The number of the first springs (41) is 1 - 3 groups. The outer ends of the first springs (41) are respectively connected with the corresponding positions inside the vertical plates (3). The first springs (41) are all made of steel.

3. The preparation device of a condensation-type two-component junction box potting adhesive according to claim 1, characterized in that: On the front and rear sides inside the vertical plates (3), sliding grooves (31) are opened. Inside the sliding grooves (31), sliding blocks (32) are inserted, and the inner sides of the sliding blocks (32) are respectively connected with the corresponding positions of the fitting blocks (4). The shapes of the sliding grooves (31) and the sliding blocks (32) are both convex-shaped.

4. The preparation device of a condensation-type two-component terminal box potting adhesive according to claim 1, characterized in that: At the middle position inside the base (1), a through groove (16) is opened. Inside the through groove (16), second springs (17) are connected. The number of the second springs (17) is 2 - 4 groups. The top ends of the second springs (17) are all connected with an arc-shaped supporting plate (18).

5. The preparation device of a condensation type two-component junction box potting adhesive according to claim 4, characterized in that: At the middle position of the bottom of the stirring kettle (6), a bottom rod (14) is connected. The bottom end of the bottom rod (14) is installed with a roller (15) through a bearing. The bottom of the roller (15) is in contact with the surface of the arc-shaped supporting plate (18).

6. The preparation device of a condensation-type two-component junction box potting adhesive according to claim 1, characterized in that: On the left and right sides of the front and rear parts of the base (1), counterweight seats (19) are installed. The lengths of the counterweight seats (19) are all greater than the width of the base (1).

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