A sealant rapid prototyping mold

Abstract

The utility model relates to a sealant rapid prototyping die belongs to steel sheet coating die technical field, including upper die and lower die, the upper die includes roof and limit board, the top of limit board is opened with upper forming part, is used for controlling the silica gel thickness of steel sheet upside, the lower die includes die holder, the top of die holder is opened with recess, the recess is sealed and is connected with the mounting base plate in the axial sliding, the utility model discloses the improvement to the existing glue technology, through the silica gel injection upper die and lower die formed die cavity, replaced the silica gel directly daubed in the prior art, thereby can realize accurate control silica gel thickness on the surface of steel sheet, through the replacement and the superposition of different upper die control silica gel thickness, make the silica gel 180 degree peeling test piece canvas downside glue layer thickness of making can be adjusted, glue layer one -shot forming, simple to make, easy demoulding, can be used repeatedly, saves production cost and construction period.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel plate coating molds, and relates to a sealant rapid prototyping mold. Background Technology

[0002] Bridges operate in harsh environments, necessitating measures such as adding alloying elements, applying anti-corrosion paint, and creating anti-corrosion silicone adhesive layers for critical load-bearing steel components. The creation of these silicone adhesive layers, a crucial component, has received increasing attention in recent years. Once cured, the silicone completely covers the steel plate, effectively isolating it from external environmental factors. However, existing techniques for applying adhesive to steel plates suffer from the following problems: 1. Due to the viscosity of the adhesive, adhesion between the adhesive and the steel plate and existing molds is poor. 2. Silicone is typically applied manually or by machine, making it difficult to control the thickness of the adhesive layer, leading to internal defects, significant silicone waste, and the fact that only one side can be coated at a time, resulting in inconsistent adhesive layer quality after curing.

[0003] Furthermore, 180° peel strength is an important mechanical property indicator for silicone when testing its performance. However, in existing technologies, it is difficult to precisely control the thickness of the silicone on the underside of the canvas during specimen fabrication; the canvas may shift, bend, and deform during specimen fabrication, all of which are significant factors affecting peel strength. Therefore, addressing these issues is a pressing technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a sealant rapid prototyping mold that can control the thickness of the adhesive layer, directly form an adhesive layer covering the steel plate, and precisely control the thickness of the adhesive layer under the canvas and the position and shape of the canvas, which is convenient for production and saves time and materials.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealant rapid prototyping mold, comprising an upper mold and a lower mold; The upper mold includes a top plate and a limiting plate. The top of the limiting plate is provided with an upper forming part for controlling the thickness of the silicone on the upper side of the steel plate. The lower mold includes a mold base, the top of which has a groove. An axially sealed sliding connection is made to a mounting base plate within the groove. The mold base contains a vertical adjustment assembly for adjusting the axial movement of the mounting base plate. Two mounting plates are symmetrically sealed and slidably connected to the top of the mounting base plate. The sides of both mounting plates are sealed against the inner wall of the groove. A lower forming part is formed between the two mounting plates, and the lower forming part cooperates with the upper forming part to form a mold cavity. The mold base contains a horizontal adjustment assembly for adjusting the horizontal relative movement of the two mounting plates. The top of the mold base has a placement groove for placing a steel plate, and the placement groove communicates with and cooperates with the groove. The height of the mounting base plate is adjusted to control the thickness of the silicone on the underside of the steel plate, and the width between the two mounting plates is adjusted to control the thickness of the silicone on both sides of the steel plate.

[0006] Furthermore, the top plate, the limiting plate, and the mold base are all provided with corresponding positioning holes at the four top corners, and the upper mold and the lower mold are connected by positioning hole bolts.

[0007] Furthermore, the vertical adjustment component includes: The first rotating rod is laterally connected to the inside of the groove and is located below the mounting base plate; A spur gear is fixedly sleeved on the outer wall of the first rotating rod; The rack is fixedly connected to the bottom of the mounting base plate and meshes with the spur gear.

[0008] Furthermore, the lateral adjustment component includes: The second rotating rod is rotatably connected to the bottom inner wall of the groove via a connecting block, and is set horizontally and vertically to the first rotating rod; The first bevel gear is fixedly sleeved on the outer wall of the first rotating rod; The second bevel gear is fixedly sleeved on one end of the second rotating rod and meshes with the first bevel gear.

[0009] Furthermore, the lateral adjustment component also includes: Two fixed pulleys are symmetrically arranged on both sides of the top of the mounting base plate; Two thin ropes are fixedly connected to the two mounting plates on opposite sides, and the other ends of the two thin ropes pass over the corresponding fixed pulleys and are fixedly connected to the outer wall of the second rotating rod. Two small holes, symmetrically placed on the top sides of the mounting base, are used for threading thin ropes.

[0010] Furthermore, the lateral adjustment assembly also includes four sets of reset components, symmetrically arranged in pairs on both sides of the top of the mounting base plate, and each set of reset components includes: The sliding groove seat is fixedly connected to the top of the mounting base plate; The return spring has one end fixedly connected to the outer side of the mounting plate and the other end fixedly connected to the inner side of the sliding groove seat. The L-shaped connecting rod is fixedly connected at one end to the outer side of the mounting plate, and the other end is slidably connected to the sliding groove of the sliding seat through a slider.

[0011] Furthermore, the top plate, limiting plate, mounting plate, and mounting base plate are all made of polytetrafluoroethylene.

[0012] The beneficial effects of this utility model are as follows: This invention, through the combined use of an upper and lower mold, effectively solves the defects that occur during the application of sealant, allowing the adhesive layer around the steel plate to be formed quickly in one step, reducing the impact of the adhesive layer and canvas on the 180° peel test results. The entire mold is simple and precise to manufacture, easy to demold, and reusable, saving production costs and time. The mold can be customized in different sizes to accommodate steel plates of different sizes and adhesive layer thicknesses.

[0013] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a sealant rapid prototyping mold according to the present invention; Figure 2 This is a schematic diagram of the exploded structure of the upper mold; Figure 3 This is a schematic diagram of the overall structure of the lower mold; Figure 4 A schematic diagram showing the connection structure between the components and the mounting plate and mounting base plate; Figure 5 A schematic diagram of the bottom connection structure for the mounting base plate; Figure 6 This is a schematic diagram of the vertical adjustment component and the horizontal adjustment component. Figure 7 This is a schematic diagram of the sliding groove seat connection structure.

[0015] Reference numerals: 1. Upper mold; 2. Lower mold; 3. Top plate; 4. Limiting plate; 5. Placement groove; 6. Mounting plate; 7. Mounting base plate; 8. Mold base; 9. Groove; 10. Positioning hole; 11. First rotating rod; 12. Upper forming part; 13. Lower forming part; 14. First bevel gear; 15. Gear rack; 16. Second bevel gear; 17. Second rotating rod; 18. Thin rope; 19. Small hole; 20. Fixed pulley; 21. Slider; 22. Sliding groove seat; 23. Return spring; 24. L-shaped connecting rod; 25. Spur gear; 26. Steel plate. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other. Example 1

[0017] like Figures 1-3 As shown, a sealant rapid prototyping mold includes an upper mold 1 and a lower mold 2.

[0018] The upper mold 1 includes a top plate 3 and a limiting plate 4. The limiting plate 4 is a replaceable and stackable component used to control the thickness of the adhesive layer on the upper side of the steel plate 26 and the thickness of the adhesive layer on the lower side of the canvas when making peel test specimens. The top plate 3 and the limiting plate 4 each have corresponding positioning holes 10 at their four corners for easy connection to the entire mold, protecting the adhesive layer surface and compressing the adhesive layer to eliminate gaps within the mold cavity. The top of the limiting plate 4 has an upper forming part 12 for controlling the thickness of the silicone on the upper side of the steel plate 26.

[0019] The lower mold 2 includes a mold base 8, with corresponding positioning holes 10 at each of the four corners of its top. The upper mold 1 and the lower mold 2 are connected by bolts through the positioning holes 10. A groove 9 is formed on the top of the mold base 8, and an axially sealed sliding connection is made to a mounting base plate 7 within the groove 9. A vertical adjustment component is provided within the mold base 8 for adjusting the axial movement of the mounting base plate 7. Adjusting the height of the mounting base plate 7 allows control of the silicone thickness on the lower side of the steel plate 26. Two mounting plates 6 are symmetrically and slidably connected to the top of the mounting base plate 7. The sides of both mounting plates 6 are sealed against the inner wall of the groove 9, forming a lower molding part 13 between the two mounting plates 6. The lower molding part 13 cooperates with the upper molding part 12 to form a mold cavity. A horizontal adjustment component is provided within the mold base 8 for adjusting the horizontal relative movement of the two mounting plates 6. Adjusting the width between the two mounting plates 6 allows control of the silicone thickness on both sides of the steel plate 26. A placement groove 5 is formed on the top of the mold base 8 for placing the steel plate 26, and the placement groove 5 communicates and cooperates with the groove 9. The depth of the placement groove 5 is the same as the thickness of the steel plate 26, and it is used to place the steel plate 26 to be coated with adhesive.

[0020] In use, first adjust the height of the mounting base plate 7 and the width between the two mounting plates 6 using the vertical and horizontal adjustment components respectively to determine the thickness of the silicone on the lower and sides of the steel plate 26. Then, apply silicone to the lower molding part 13, place the cleaned steel plate 26 into the placement groove 5, and press it downwards so that the lower surface of the steel plate 26 contacts the bottom wall of the placement groove 5. At this time, the thickness of the silicone on the lower surface of the steel plate 26 in the groove 9 is the height distance between it and the mounting base plate 7, and the thickness of the silicone on both sides is the spacing width between it and the mounting plates 6. Next, select a suitable size limiting plate 4, and sandwich the canvas between two limiting plates 4 of different thicknesses. The thickness of the limiting plate 4 on the lower side of the canvas is the thickness of the adhesive layer to be controlled. Then, use bolts to firmly fix the limiting plate 4 to the lower mold 2. Apply sealant to the upper surface of steel plate 26 and smooth it with a scraper. Then, fix the top plate 3, the limiting plate 4, and the lower mold 2 together with bolts and tighten the bolts to compress the sealant layer with the top plate 3, forming the upper surface of the silicone. It is best to place the mold in a curing chamber for curing. After curing, remove the top plate 3, the limiting plate 4, and the lower mold 2 in sequence, and take out the completed silicone steel plate assembly specimen.

[0021] In one aspect of this embodiment, the top plate 3, the limiting plate 4, the mounting plate 6, and the mounting base plate 7 are all made of polytetrafluoroethylene (PTFE) to facilitate demolding after silicone molding.

[0022] This invention can be used in the field of rapid prototyping molds for sealants, and can also be applied to other fields. Example 2

[0023] This embodiment is a further improvement on the previous embodiment: such as Figures 1-6 As shown, the vertical adjustment assembly includes a first rotating rod 11, a rack 15, and a spur gear 25. The first rotating rod 11 is laterally rotatably connected inside the groove 9 and located below the mounting base plate 7. The spur gear 25 is fixedly sleeved on the outer wall of the first rotating rod 11. The rack 15 is fixedly connected to the bottom of the mounting base plate 7 and meshes with the spur gear 25. Rotating the first rotating rod 11, through the meshing of the spur gear 25 and the rack 15, can drive the mounting base plate 7 to slide up and down within the groove 9, thereby adjusting the height of the mounting base plate 7, and thus adjusting the thickness of the silicone on the underside of the steel plate 26. Example 3

[0024] This embodiment is a further improvement on the previous embodiment: such as Figures 1-7As shown, the lateral adjustment assembly includes a first bevel gear 14, a second bevel gear 16, a second rotating rod 17, two thin ropes 18, two small holes 19, and two fixed pulleys 20. The second rotating rod 17 is rotatably connected to the bottom inner wall of the groove 9 via a connecting block and is horizontally and vertically arranged with the first rotating rod 11. The first bevel gear 14 is fixedly sleeved on the outer wall of the first rotating rod 11. The second bevel gear 16 is fixedly sleeved on one end of the second rotating rod 17 and meshes with the first bevel gear 14. When the first rotating rod 11 rotates, it can simultaneously drive the spur gear 25 and the first bevel gear 14 to rotate. Through the meshing of the spur gear 25 with the rack 15, the mounting base 7 can be adjusted vertically. Through the meshing of the first bevel gear 14 and the second bevel gear 16, the second rotating rod 17 can be driven to rotate synchronously. The two fixed pulleys 20 are symmetrically arranged on both sides of the top of the mounting base 7. Two thin ropes 18 are fixedly connected to the opposite sides of the two mounting plates 6, with the other ends of each rope passing over a corresponding fixed pulley 20 and fixedly connected to the outer wall of the second rotating rod 17. Two small holes 19 are symmetrically formed on the top sides of the mounting base plate 7 for the ropes 18 to pass through. When the first rotating rod 11 drives the second rotating rod 17 to rotate, the two ropes 18 can be wound around each other, which can cause the two mounting plates 6 to move away from each other, thereby adjusting the width between the two mounting plates 6. Since the two mounting plates 6 slide on the mounting base plate 7, when the mounting base plate 7 moves up and down, it can drive the two mounting plates 6 to move up and down synchronously, thus ensuring that the mounting plates 6 adjust their height synchronously with the mounting base plate 7. Furthermore, since the second rotating rod 17 is in a fixed rotation position and does not move up or down, while the mounting plate 6 moves up and down synchronously with the mounting base plate 7, the thin rope 18 will be somewhat slack when the mounting plate 6 moves down. At this time, it is necessary to set the size difference between the first bevel gear 14 and the second bevel gear 16 to achieve differential rotation, making the first bevel gear 14 larger than the second bevel gear 16. That is, when the first rotating rod 11 drives the spur gear 25 to rotate, and the mounting base plate 7 moves down a small distance through the meshing of the rack 15, the meshing of the first bevel gear 14 and the second bevel gear 16 makes the rotation angle of the second rotating rod 17 greater than the rotation angle of the first rotating rod 11. This ensures that the slack thin rope 18 is always kept taut, thereby enabling the adjustment of the mounting plate 6. Conversely, when the mounting plate 6 moves up, the thin rope 18 wrapped around the second rotating rod 17 will gradually loosen, without affecting the sliding reset of the mounting plate 6 on the mounting base plate 7.

[0025] In one aspect of this embodiment, the lateral adjustment assembly further includes four sets of reset components, symmetrically arranged in pairs on the top sides of the mounting base plate 7. Each set of reset components includes a sliding groove seat 22, a reset spring 23, and an L-shaped connecting rod 24. The sliding groove seat 22 is fixedly connected to the top of the mounting base plate 7. One end of the reset spring 23 is fixedly connected to the outer side of the mounting plate 6, and the other end is fixedly connected to the inner side of the sliding groove seat 22. One end of the L-shaped connecting rod 24 is fixedly connected to the outer side of the mounting plate 6, and the other end is slidably connected to the sliding opening of the sliding groove seat 22 via a slider 21. When the two mounting plates 6 move down, the rotation of the second rotating rod 17 can pull the two mounting plates 6 away from each other on the mounting base plate 7 using a thin rope 18. At this time, the L-shaped connecting rod 24 will drive the slider 21 to slide within the sliding opening of the sliding groove seat 22, and simultaneously compress the reset spring 23. When the two mounting plates 6 move upward, the second rotating rod 17 reverses, which will loosen the thin rope 18. Under the elastic force of the return spring 23, the two mounting plates 6 will move and reset, and move closer to each other. At the same time, the thin rope 18 will be tightened, so that the width of the mounting plates 6 can be adjusted synchronously as the mounting base plate 7 moves up and down to adjust the height. This makes it easy to control the thickness of the silicone on both sides and the bottom of the steel plate 26 at the same time.

[0026] This invention improves upon existing adhesive coating technology by injecting silicone into the mold cavity formed by the upper mold 1 and the lower mold 2, replacing the direct application of silicone in the prior art. This allows for precise control of the silicone thickness on the surface of the steel plate 26. By changing and stacking different upper molds 1 to control the silicone thickness, the thickness of the adhesive layer on the underside of the canvas of the 180° peel-off silicone specimen can be adjusted. The adhesive layer is formed in one step, making the manufacturing process simple, easy to demold, reusable, and saving production costs and time.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rapid prototyping mold for sealant, characterized in that, Includes an upper mold (1) and a lower mold (2); The upper mold (1) includes a top plate (3) and a limiting plate (4). The top of the limiting plate (4) is provided with an upper forming part (12) for controlling the thickness of the silicone on the upper side of the steel plate (26). The lower mold (2) includes a mold base (8), the top of the mold base (8) is provided with a groove (9), and an mounting base plate (7) is axially sealed and slidably connected in the groove (9). The mold base (8) is provided with a vertical adjustment component for adjusting the axial movement of the mounting base plate (7). The top of the mounting base plate (7) is symmetrically sealed and slidably connected with two mounting plates (6). The side ends of the two mounting plates (6) are sealed and fitted to the inner wall of the groove (9). A lower forming part (13) is formed between the two mounting plates (6), and the lower forming part (13) cooperates with the upper forming part (12) to form a mold cavity. The mold base (8) is provided with a horizontal adjustment component for adjusting the horizontal relative movement of the two mounting plates (6). The top of the mold base (8) is provided with a placement groove (5) for placing a steel plate (26), and the placement groove (5) is connected and cooperates with the groove (9). The height of the mounting base plate (7) is adjusted to control the thickness of the silicone on the underside of the steel plate (26), and the width between the two mounting plates (6) is adjusted to control the thickness of the silicone on both sides of the steel plate (26).

2. The sealant rapid prototyping mold as described in claim 1, characterized in that, The top plate (3), the limiting plate (4) and the mold base (8) are all provided with corresponding positioning holes (10) at the four corners of the top, and the upper mold (1) and the lower mold (2) are connected by bolts through the positioning holes (10).

3. The sealant rapid prototyping mold as described in claim 1, characterized in that, The vertical adjustment component includes: The first rotating rod (11) is connected to the inside of the groove (9) in a transverse rotation and is located below the mounting base plate (7); A spur gear (25) is fixedly sleeved on the outer wall of the first rotating rod (11); The rack (15) is fixedly connected to the bottom of the mounting base plate (7) and meshes with the spur gear (25).

4. The sealant rapid prototyping mold as described in claim 3, characterized in that, The lateral adjustment component includes: The second rotating rod (17) is rotatably connected to the bottom inner wall of the groove (9) via a connecting block, and is set horizontally and vertically with the first rotating rod (11); The first bevel gear (14) is fixedly sleeved on the outer wall of the first rotating rod (11); The second bevel gear (16) is fixedly sleeved on one end of the second rotating rod (17) and meshes with the first bevel gear (14).

5. A sealant rapid prototyping mold as described in claim 4, characterized in that, The lateral adjustment component also includes: Two fixed pulleys (20) are symmetrically arranged on the top two sides of the mounting base plate (7); Two thin ropes (18) are fixedly connected to the two mounting plates (6) on opposite sides, and the other ends of the two thin ropes (18) pass over the corresponding fixed pulleys (20) and are fixedly connected to the outer wall of the second rotating rod (17); Two small holes (19) are symmetrically opened on the top sides of the mounting base plate (7) for the thin rope (18) to pass through.

6. A sealant rapid prototyping mold as described in claim 5, characterized in that, The lateral adjustment assembly also includes four sets of reset components, symmetrically arranged in pairs on both sides of the top of the mounting base plate (7), and each set of reset components includes: The sliding groove seat (22) is fixedly connected to the top of the mounting base plate (7); The return spring (23) is fixedly connected at one end to the outer side of the mounting plate (6) and at the other end to the inner side of the sliding groove seat (22); The L-shaped connecting rod (24) is fixedly connected at one end to the outer side of the mounting plate (6), and the other end is slidably connected to the sliding groove seat (22) through the slider (21).

7. A sealant rapid prototyping mold as described in any one of claims 1-6, characterized in that, The top plate (3), the limiting plate (4), the mounting plate (6) and the mounting base plate (7) are all made of polytetrafluoroethylene.

Images