CN219232936U - Continuous blade coating and precise press forming device - Google Patents

Abstract

The utility model relates to the technical field of heat conduction insulating gasket production, and discloses a continuous blade coating and precise pressing forming device, which comprises a box body, wherein a glass fiber feeding hole is formed in the right side of the box body, first round holes are formed in the front side and the rear side of the box body, a first bearing is fixedly connected to the inner wall of the first round hole, a first guide roller is fixedly connected to the inner wall of the first bearing, and second round holes are formed in the front side and the rear side of the box body. According to the utility model, the rubber material is coated on the glass fiber through the scraping plate, and repeatedly rolled by the coating roller, so that the rubber material fully infiltrates the glass fiber, air is discharged, and then the glass fiber is sized and formed from two sides, so that the thickness uniformity and the low roughness of the material are ensured, the device can adapt to various rubber materials with different viscosities, and compared with a wet process, the device eliminates solvents in the wet coating process, and compared with a dry process, the device realizes continuous and automatic production of the high-viscosity rubber material.

Description

Continuous blade coating and precise press forming device

Technical Field

The utility model relates to the technical field of heat conduction insulating gasket production, in particular to a continuous blade coating and precise press forming device.

Background

The heat-conducting insulating gasket is a functional composite material widely applied to high-power devices such as high-power supplies, IGPT, PTC and the like. For conducting heat generated by the device to a heat sink or heating module. The thermally conductive insulating gasket requires high insulation and low thermal resistance.

The thermally conductive and electrically insulating gaskets are typically formed from silicone mixed with a thermally conductive filler to form a paste, coated or molded onto the surface of the glass fibers, and then cured to a flexible sheet by heating. The thickness is usually 0.2-0.5mm, the thermal conductivity is usually 1-5w/mk, and the insulation strength is 1500-6000V. Wherein 1-3w is low-end product, and more than 3w is high-end product.

The principle of continuous wet forming with solvent is as follows: the viscosity of the system is reduced by using a large amount of volatile organic solvents, then the system is coated on glass fibers by using a precise coating machine, and then the solvents are volatilized by using a tunnel oven and cured and molded. The method can be used for continuous molding, has higher efficiency, and can achieve the capacity of 60 square meters per hour of single equipment. But can only be used for forming products with the heat conductivity below 3w/mk, meanwhile, as volatile solvents are flammable and explosive, all equipment must meet the explosion-proof requirement, and are attached with VOC treatment devices, the solvents must be recycled or incinerated, so that the cost of one-time investment and later maintenance is increased, in addition, 60% -90% of heat conducting filler is usually arranged in sizing materials, and the thickness of the precise coating head can be controlled, but the surface roughness is higher. The high roughness can improve interface thermal resistance and reduce product performance.

Vacuum compression molding: the process typically uses a high viscosity gum to achieve high thermal conductivity. The molding is performed by using a press roll to a thickness close to the target, and then the molding is performed by using a vacuum molding press. And the compactness of the inside of the material is improved by using high vacuum high pressure and high temperature, so that the ultrathin compact high-heat-conductivity insulating gasket is obtained. The thermal conductivity can reach 5w/mk. But the production is not continuous and the efficiency is lower. The molding efficiency of the single machine is usually only 5-10 square meters per hour. Moreover, the production process is not continuous enough, the manual operation is more, the difference between batches is larger, and the efficiency and the material utilization rate are more difficult to improve.

Therefore, the high-end heat-conducting insulating gasket with 3-5w/mk heat conductivity and 6000v or more insulating strength can not be produced with high performance, low cost, safe process and high productivity by adopting the continuous wet molding with the solvent or the vacuum compression molding.

Disclosure of Invention

The utility model aims to solve the defects existing in the prior art, such as: at present, no matter the continuous wet forming with solvent or the vacuum compression molding is carried out, the high-end heat conduction insulating gasket with 3-5w/mk of heat conductivity, 6000v of insulating strength and over can not be produced with high performance, low cost, safe process and high productivity, and the continuous knife coating and precise pressing forming device is provided.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the continuous doctor-blading and precise press-fit forming device comprises a box body, a glass fiber feeding hole is formed in the right side of the box body, first round holes are formed in the front side and the rear side of the box body, a first bearing is fixedly connected to the inner wall of the first round hole, a first guide roller is fixedly connected to the inner wall of the first bearing, second round holes are formed in the front side and the rear side of the box body, a second bearing is fixedly connected to the inner wall of the second round hole, a coating roller is fixedly connected to the inner wall of the second bearing, the coating roller is located on the left side of the first guide roller, third round holes are formed in the front side and the rear side of the box body, a third bearing is fixedly connected to the inner wall of the third round holes, a second guide roller is fixedly connected to the inner wall of the third bearing, a fourth round hole is formed in the front side and the rear side of the box body, the utility model discloses a coating machine, including fourth round hole, first guide roll, second guide roll, first coating mechanism, second coating mechanism, discharge gate, protection film feed inlet, scraper blade, protection film feed inlet, first coating mechanism and first guide roll are all fixed connection to the inner wall of fourth round hole and the back of box, the first mounting bracket of the equal fixedly connected with pressing mechanism of both sides around the box inner wall, the first mounting bracket of the equal fixedly connected with of the front and back of the box inner wall, the left side fixedly connected with second coating mechanism of second mounting bracket, the second coating mechanism is located between second guide roll and the coating roll, the discharge gate has been seted up in the left side of box, the protection film feed inlet has been seted up on the right side of box, the equal fixedly connected with scraper blade around the box inner wall, the scraper blade is located between first coating mechanism and the first guide roll.

Preferably, the pressing mechanism comprises a supporting block, the front surface of the supporting block is fixedly connected with the back surface of the box body, driving motors are fixedly connected to the upper side and the lower side of the supporting block, pressing rollers are fixedly connected to the output ends of the driving motors, and fourth bearings are fixedly connected to the surfaces of the pressing rollers and the inner walls of fourth round holes.

Preferably, the number of the protective film feed inlets is two, and the two protective film feed inlets are symmetrically distributed by taking the glass fiber feed inlet as a center.

Preferably, the bar hole has all been seted up to both sides around the box, the laminating of the inner wall in bar hole is provided with the collection box, the back fixedly connected with spacing post of box, the front of spacing post and the back contact of collection box, both sides all fixedly connected with support column around the box inner wall, the upper surface of support column and the bottom contact of collection box.

Preferably, the upper surface of support column has seted up flutedly, the inner wall fixedly connected with electrical heating board of recess, the upper surface of electrical heating board and the bottom contact of collecting box.

Preferably, the right side fixedly connected with fixed plate of box, the fixed plate is located between fine feed inlet of glass and the protection film feed inlet, the upper and lower both sides of fixed plate are all laminated and are provided with the sponge piece.

Compared with the prior art, the utility model has the beneficial effects that:

(1) According to the utility model, the rubber material is coated on the glass fiber through the scraping plate, and repeatedly rolled by the coating roller, so that the rubber material fully infiltrates the glass fiber, air is discharged, and then the glass fiber is sized and formed from two sides, so that the thickness uniformity and the low roughness of the material are ensured, the device can adapt to various rubber materials with different viscosities, and compared with a wet process, the device eliminates solvents in the wet coating process, and compared with a dry process, the device realizes continuous and automatic production of the high-viscosity rubber material.

(2) According to the utility model, the collecting box is arranged in the box body, and the rubber material dripped on the glass fiber or the protective film can directly enter the collecting box, so that the device can collect the rubber material dripped on the glass fiber or the protective film through the collecting box, and meanwhile, the electric heating plate on the supporting column can heat the rubber material collected in the collecting box, so that the rubber material in the collecting box is prevented from being solidified due to lower temperature.

Drawings

FIG. 1 is a schematic illustration of the structure of the present utility model;

FIG. 2 is a front view of the structure of the present utility model;

FIG. 3 is a rear elevational view of the structure of the present utility model;

FIG. 4 is a front view of the case of the present utility model;

FIG. 5 is a right side view of the press-fit mechanism of the present utility model;

fig. 6 is a side view of a support column of the present utility model.

In the figure: 1. a case; 2. a glass fiber feeding port; 3. a first round hole; 4. a first bearing; 5. a first guide roller; 6. a second round hole; 7. a second bearing; 8. a coating roller; 9. a third round hole; 10. a third bearing; 11. a second guide roller; 12. a fourth round hole; 13. a pressing mechanism; 131. a support block; 132. a driving motor; 133. a pressing roller; 134. a fourth bearing; 14. a first mounting frame; 15. a first coating mechanism; 16. a second mounting frame; 17. a second coating mechanism; 18. a discharge port; 19. a protective film feed inlet; 20. a scraper; 21. a bar-shaped hole; 22. a collection box; 23. a limit column; 24. a support column; 25. a groove; 26. an electric heating plate; 27. a fixing plate; 28. sponge block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Embodiment one:

referring to fig. 1-5, the continuous doctor-blading and precise press-fit forming device comprises a box body 1, a glass fiber feeding port 2 is formed on the right side of the box body 1, first round holes 3 are formed on the front side and the rear side of the box body 1, first bearings 4 are fixedly connected to the inner walls of the first round holes 3, first guide rollers 5 are fixedly connected to the inner walls of the first bearings 4, the number of the first guide rollers 5 is two, glass fibers are arranged between the two first guide rollers 5, second round holes 6 are formed on the front side and the rear side of the box body 1, second bearings 7 are fixedly connected to the inner walls of the second round holes 6, coating rollers 8 are fixedly connected to the inner walls of the second bearings 7, the coating rollers 8 are positioned on the left side of the first guide rollers 5, the number of the coating rollers 8 is a plurality of the glass fibers are repeatedly crushed through a plurality of coating rollers, the glass fibers are fully infiltrated by sizing materials, third round holes 9 are formed on the front side and rear side of the box body 1, the inner wall of the third round hole 9 is fixedly connected with a third bearing 10, the inner wall of the third bearing 10 is fixedly connected with a second guide roller 11, the second guide roller 11 is positioned at the left side of the coating roller 8, the second guide roller 11 guides the protective film, the front side and the rear side of the box body 1 are respectively provided with a fourth round hole 12, the inner wall of the fourth round hole 12 and the back side of the box body 1 are respectively fixedly connected with a pressing mechanism 13, the front side and the rear side of the inner wall of the box body 1 are respectively fixedly connected with a first mounting frame 14, one side of the first mounting frame 14, which is close to the first guide roller 5, is fixedly connected with a first coating mechanism 15, the first coating mechanism 15 is positioned between the first guide roller 5 and the coating roller 8, glue stock is coated on glass fibers through the first coating mechanism 15, and, as the number of the first coating mechanisms 15 is two, and the two first coating mechanisms 15 are respectively positioned at the upper side and the lower side of the glass fibers, and then make first coating mechanism 15 can carry out the coating to the fine two sides of glass, the front and back both sides of box 1 inner wall are all fixedly connected with second mounting bracket 16, the left side fixedly connected with second coating mechanism 17 of second mounting bracket 16, second coating mechanism 17 is located between second guide roll 11 and the coating roller 8, coat the sizing material on the protection film through second coating mechanism 17, first coating mechanism 15 and second coating mechanism 17 are by the pump body, coating shower nozzle and pipeline are constituteed, when the pump body is opened, coat sizing material on fine or the protection film through the pump body and coating shower nozzle, discharge gate 18 has been seted up on the left side of box 1, protection film feed inlet 19 has been seted up on the right side of box 1, the quantity of protection film feed inlet 19 is two, and two protection film feed inlets 19 are the center and are the symmetric distribution with fine feed inlet 2 of glass, the front and back both sides of box 1 inner wall are all fixedly connected with scraper blade 20, scraper blade 20 is located between first coating mechanism 15 and the first guide roll 5, make sizing material all with the coating on fine through scraper blade 20.

The pressing mechanism 13 comprises a supporting block 131, the front surface of the supporting block 131 is fixedly connected with the back surface of the box body 1, driving motors 132 are fixedly connected to the upper side and the lower side of the supporting block 131, pressing rollers 133 are fixedly connected to the output ends of the driving motors 132, fourth bearings 134 are fixedly connected to the surfaces of the pressing rollers 133 and the inner walls of the fourth round holes 12, the number of the pressing rollers 133 is two, and the rotation directions of the two pressing rollers 133 are opposite.

Embodiment two:

referring to fig. 1-6, the front and rear sides of the box 1 are provided with the bar-shaped holes 21, the inner walls of the bar-shaped holes 21 are attached to the collecting box 22, the back of the box 1 is fixedly connected with the limiting columns 23, the front of the limiting columns 23 is in contact with the back of the collecting box 22, the front and rear sides of the inner walls of the box 1 are fixedly connected with the supporting columns 24, the upper surfaces of the supporting columns 24 are in contact with the bottom of the collecting box 22, the grooves 25 are formed in the upper surfaces of the supporting columns 24, the inner walls of the grooves 25 are fixedly connected with the electric heating plates 26, the upper surfaces of the electric heating plates 26 are in contact with the bottom of the collecting box 22, the collecting box 22 is arranged in the box 1, and the glass fiber or the rubber material dripped on the protective film can directly enter the collecting box 22, and then the device can collect the rubber material dripped on the glass fiber or the protective film through the collecting box 22, meanwhile, the electric heating plates 26 on the supporting columns 24 can heat the rubber material collected in the collecting box 22, and the rubber material in the collecting box 22 is prevented from solidifying due to low temperature.

Embodiment III:

referring to fig. 1-3, a fixing plate 27 is fixedly connected to the right side of the box body 1, the fixing plate 27 is located between the glass fiber feeding port 2 and the protective film feeding port 19, sponge blocks 28 are respectively arranged on the upper side and the lower side of the fixing plate 27 in a fitting mode, dust on the glass fiber and the protective film can be wiped through the sponge blocks 28, and therefore dust cannot exist between the glass fiber and the protective film.

In the utility model, when a user uses the device, glass fibers enter the box body 1 through the glass fiber feeding hole 2, the glass fibers are guided through the first guide roller 5, then, glue stock is coated on the glass fibers through the first coating mechanism 15, the glue stock on the glass fibers is more uniform with the glass fibers through the scraping plate 20, then, the glue stock is repeatedly rolled through the plurality of coating rollers to fully infiltrate the glass fibers, air is discharged, meanwhile, a protective film enters the box body 1 through the protective film feeding hole 19, the protective film is guided through the second guide roller 11, then, the glue stock is coated on the protective film through the second coating mechanism 17, then, the two pressing rollers 133 are rotated through the driving motor 132, and the rotating directions of the two pressing rollers 133 are opposite, at the moment, the two protective films and one glass fiber are pressed together through the rotating pressing rollers 133, and the pressed wet film is discharged through the discharging hole 18 and enters the tunnel oven to be solidified.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (6)

1. The utility model provides a continuous knife coating and accurate pressfitting forming device, includes box (1), its characterized in that, fine feed inlet (2) of glass have been seted up on the right side of box (1), first round hole (3) have all been seted up to the front and back both sides of box (1), the inner wall fixedly connected with first bearing (4) of first round hole (3), the inner wall fixedly connected with first guide roll (5) of first bearing (4), second round hole (6) have all been seted up to the front and back both sides of box (1), the inner wall fixedly connected with second bearing (7) of second round hole (6), the inner wall fixedly connected with coating roller (8) of second bearing (7), coating roller (8) are located the left side of first guide roll (5), the front and back both sides of box (1) have all been seted up third round hole (9), the inner wall fixedly connected with third bearing (10) of third round hole (9), the inner wall fixedly connected with second guide roll (11) of third bearing (10), the inner wall fixedly connected with second guide roll (11) of second guide roll (8) are located the front and back of fourth round hole (12) of box (12), the utility model discloses a novel coating machine, including box (1) inner wall, first mounting bracket (14) of equal fixedly connected with in front and back both sides of box (1) inner wall, one side fixedly connected with first coating mechanism (15) that is close to first guide roll (5) of first mounting bracket (14), first coating mechanism (15) are located between first guide roll (5) and coating roll (8), both sides all fixedly connected with second mounting bracket (16) around box (1) inner wall, the left side fixedly connected with second coating mechanism (17) of second mounting bracket (16), second coating mechanism (17) are located between second guide roll (11) and coating roll (8), discharge gate (18) have been seted up in the left side of box (1), protection film feed inlet (19) have been seted up on the right side of box (1), both sides all fixedly connected with scraper blade (20) around box (1) inner wall, scraper blade (20) are located between first coating mechanism (15) and first guide roll (5).

2. The continuous blade coating and precise press-fit forming device according to claim 1, wherein the press-fit mechanism (13) comprises a supporting block (131), the front surface of the supporting block (131) is fixedly connected with the back surface of the box body (1), driving motors (132) are fixedly connected to the upper side and the lower side of the supporting block (131), press-fit rollers (133) are fixedly connected to the output ends of the driving motors (132), and fourth bearings (134) are fixedly connected to the surfaces of the press-fit rollers (133) and the inner walls of the fourth round holes (12).

3. The continuous blade coating and precise pressing forming device according to claim 1, wherein the number of the protective film feeding holes (19) is two, and the two protective film feeding holes (19) are symmetrically distributed with the glass fiber feeding hole (2) as a center.

4. The continuous blade coating and precise press forming device according to claim 1, wherein strip-shaped holes (21) are formed in the front side and the rear side of the box body (1), a collecting box (22) is arranged on the inner wall of each strip-shaped hole (21) in a fitting mode, a limit column (23) is fixedly connected to the back face of the box body (1), the front face of the limit column (23) is in contact with the back face of the collecting box (22), support columns (24) are fixedly connected to the front side and the rear side of the inner wall of the box body (1), and the upper surface of each support column (24) is in contact with the bottom of the collecting box (22).

5. The continuous blade coating and precise pressing forming device according to claim 4, wherein the upper surface of the supporting column (24) is provided with a groove (25), the inner wall of the groove (25) is fixedly connected with an electric heating plate (26), and the upper surface of the electric heating plate (26) is in contact with the bottom of the collecting box (22).

6. The continuous blade coating and precise pressing forming device according to claim 1, wherein a fixing plate (27) is fixedly connected to the right side of the box body (1), the fixing plate (27) is located between the glass fiber feeding port (2) and the protective film feeding port (19), and sponge blocks (28) are respectively arranged on the upper side and the lower side of the fixing plate (27) in a fitting mode.

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