Oblique baffle tool based on coating equipment
By designing an inclined tooling on the coating equipment to form a semi-enclosed glue groove space, the problem of large bubble cells and pore size uneven after rolling is solved, the bubble cell uniformity and small pore size distribution are achieved, and the mechanical properties and operating efficiency of the product are improved.
Patent Information
- Application Number
- CN202422019317.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In the existing coating methods, there are problems of large bubble cells and uneven pore size distribution after rolling, which affects the mechanical properties of the product.
The inclined gear design is adopted to form a semi-enclosed rubber groove space by lifting and lowering the adjustment unit and adjustment rod to control the flow of polyurethane foam, reduce contact with air, and ensure that the foam is not sheared during the rolling process, forming uniform small bubbles.
It improves the uniformity of the bubble cells and the small pore size distribution, meets the mechanical performance requirements of the product. At the same time, the structure is light, convenient to install, high operating efficiency, and can be adjusted online.
Smart Images

Figure CN223147591U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating equipment, in particular to an inclined baffle tooling based on coating equipment. Background Art
[0002] The existing coating method is to directly pour polyurethane foam material on the lower base layer at the joint of the coating bottom roller and the coating roller. When the coating bottom roller and the coating roller roll-press the upper and lower base layers, the polyurethane foam material tumbles between the upper substrate and the lower substrate. Due to the large batch differences of the raw material foam stabilizer in the polyurethane foam material formula, the moisture content in the formula is extremely easy to change during the process, and the polyurethane foam material is easy to contact with air, so there are large bubble holes in the polyurethane foam material after roll-pressing, and the pore size distribution is large. Summary of the Utility Model
[0003] The utility model aims to solve the above defects and provides an inclined baffle tooling based on coating equipment.
[0004] In order to overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: an inclined baffle tooling based on coating equipment, including a coating roller, a coating bottom roller and a lifting and moving adjustment unit located on the coating equipment. The coating roller and the coating bottom roller are mutually attached to press the upper base layer and the lower base layer. The lifting and moving adjustment units are oppositely arranged on the coating equipment, and an adjusting rod is rotatably arranged between the lifting and moving adjustment units. The lifting and moving adjustment unit is used to drive the adjusting rod to move radially and axially in the moving direction of the lower base layer. The inclined baffle arranged on the adjusting rod is placed on the upper base layer so that a semi-closed glue tank space for accommodating the polyurethane foam material is formed among the inclined baffle, the upper base layer and the lower base layer. The glue tank space is located at the joint of the coating roller and the coating bottom roller, so that the coating roller and the coating bottom roller press the upper base layer, the lower base layer and the polyurethane foam material together.
[0005] Further improvement includes that the lifting and moving adjustment unit includes a fixed plate fixedly arranged on the coating equipment, a movable plate slidably adjusted on the fixed plate, and a bracket arranged on the movable plate. An open U-shaped groove is opened on the bracket, the adjusting rod is clamped in the U-shaped groove, and a threaded structure is formed at the end of the adjusting rod, and a nut for clamping the bracket is threadedly connected to the adjusting rod.
[0006] Further improvement includes that a kidney-shaped hole is opened on the movable plate, and a bolt passing through the kidney-shaped hole is connected to a threaded hole opened on the fixed plate.
[0007] Further improvement includes that an inclined section is opened at the contact position between the inclined baffle and the lower base layer.
[0008] Further improvements include a laminate connected to the inclined baffle for separating the polyurethane foam material from the advancing lower substrate.
[0009] The beneficial effects of the present utility model are as follows: This design improves the uniformity of the product's foam cells, and the average foam cell pore size is small, with a narrow pore size distribution, thereby meeting the mechanical properties of the product. This design has a light structure, is convenient to install and easy to adjust, and has high operating efficiency; this design can adjust the gap between the inclined baffle and the lower substrate online, and the inclined cutting surface solves the problem of the product having indentations caused by the inclined baffle on the lower substrate. Description of the Drawings
[0010] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0011] Figure 1 is the axonometric view of the present utility model;
[0012] Figure 2 is the right view of the present utility model;
[0013] Figure 3 is the partial axonometric view of the lifting and moving adjustment unit in the present utility model;
[0014] In the figure, 1 - lower substrate, 2 - fixed plate, 3 - movable plate, 4 - bracket, 5 - inclined baffle, 6 - upper substrate, 7 - coating roller, 8 - adjusting rod, 9 - inclined cutting surface, 10 - kidney-shaped hole, 11 - screw hole, 12 - laminate, 13 - coating bottom roller, 14 - U-shaped groove. Detailed Embodiment
[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.
[0016] According to Figure 1 and Figure 2As shown in the figure, an inclined baffle tooling based on a coating device includes a coating roller 7, a coating bottom roller 13, and a lifting and moving adjustment unit located on the coating device. The coating roller 7 and the coating bottom roller 13 are mutually attached to press the upper base layer 6 and the lower base layer 1 together. The lifting and moving adjustment units are relatively arranged on the coating device, and an adjustment rod 8 is rotatably arranged between the lifting and moving adjustment units. The lifting and moving adjustment unit is used to drive the adjustment rod 8 to move radially and axially in the moving direction of the lower base layer 1. The inclined baffle 5 arranged on the adjustment rod 8 is placed on the upper base layer 6 so that the inclined baffle 5, the upper base layer 6, and the lower base layer 1 form a semi-closed glue tank space for accommodating polyurethane foam material. The glue tank space is located at the attachment position of the coating roller 7 and the coating bottom roller 13, so that the coating roller 7 and the coating bottom roller 13 press the upper base layer 6, the lower base layer 1, and the polyurethane foam material together.
[0017] The glue tank space is filled with polyurethane foam material, which is formed by injecting polyether polyol, cell stabilizer, isocyanate, and nitrogen gas and stirring them with a high-speed stirring head. The nitrogen gas is broken into uniform small bubbles and dispersed in it. The foam is continuously injected into the glue tank space to form a stable liquid level.
[0018] In this design, by adjusting the position of the inclined baffle, the area of the glue tank space is controlled. When the foam material at the bottom of the glue tank enters the gap between the two rollers, on the one hand, it is isolated from the air, reducing the entry of external air. On the other hand, the liquid level of the polyurethane foam material is controlled to be higher than the attachment position of the coating roller 7 and the coating bottom roller 13. The higher liquid level pressure formed can maintain the flow of the foam material between the attachment surfaces of the two rollers, pass through the gap more smoothly, greatly reduce the shear of the foam material, weaken the rolling of the foam material, and reduce the rolling area. Thus, the diffusion defoaming or coalescence defoaming of the small bubbles that have been uniformly dispersed in the foam is largely eliminated, so that bubbles will not be generated, ensuring the uniform consistency of the bubbles in the finally reacted product, with smaller bubble diameters, meeting the mechanical properties of the product, and ensuring the buffer and sealing performance of the product.
[0019] According to Figure 3As shown, the lifting and moving adjustment unit includes a fixed plate 2 fixedly arranged on the coating equipment, a movable plate 3 slidably adjusted on the fixed plate 2, and a bracket 4 arranged on the movable plate 3. An open U-shaped groove 14 is formed on the bracket 4, and the adjusting rod 8 is clamped in the U-shaped groove 14. The end of the adjusting rod 8 forms a threaded structure, and a nut for clamping the bracket 4 is threadedly connected to the adjusting rod 8. Through this design, the adjusting rod 8 is adjusted in the radial direction of the moving direction of the lower base layer 1, thereby adjusting the inclination angle of the inclined baffle 5 and further adjusting the area of the glue tank space. By sliding and adjusting the movable plate 3 on the fixed plate 2, the position of the inclined baffle 5 to the joint of the coating roller 7 and the coating bottom roller 13 is adjusted, so as to control the area of the glue tank space.
[0020] A waist-shaped hole 10 is formed on the movable plate 3, and a bolt passing through the waist-shaped hole 10 is connected to a screw hole 11 formed on the fixed plate 2. Tightening the bolt can press the movable plate 3 against the fixed plate 2, and loosening the bolt can enable the bolt to axially move in the waist-shaped hole 10, thereby adjusting the axial displacement of the adjusting rod 8 on the lower base layer 1.
[0021] An inclined plane 9 is formed at the contact of the inclined baffle 5 and the lower base layer 1, and the inclined plane 9 is parallel and smooth in contact with the lower base layer 1 to avoid scratching the lower base layer 1.
[0022] A sticker layer 12 for separating the polyurethane foam material from the advancing lower base layer 1 is connected to the inclined baffle 5, reducing the high shear of the advancing lower base layer 1 on the foam. The local part of the sticker layer 12 and the space between the upper base layer 6 and the upper and lower rollers form a "quasi-slit coating" structure. The foam material is extruded from the roller gap under a certain pressure, and the short residence time also reduces the shear of the foam to a certain extent, further ensuring that the foam material is coated between the upper and lower base layers. The material of the sticker layer 12 is preferably films such as PET, PTFE, and PVDF. The closer the sticker layer 12 is to the joint between the two rollers, the better, but it cannot cross over.
[0023] Working principle: First, lay the upper base layer 6 and the lower base layer 1 on the coating equipment. Loosen the bolt to enable the movable plate 3 to axially move on the fixed plate 2. After reaching the position, tighten the bolt, thereby adjusting the axial position of the adjusting rod 8. Loosen the nut to adjust the moving position of the adjusting rod 8 in the U-shaped groove 14. After reaching the position, tighten the nut to clamp the bracket 4, thereby adjusting the radial position of the adjusting rod 8. Adjust the inclined baffle 5 to an appropriate inclination angle through the above steps. Then, inject the polyurethane foam material into the glue tank space. Since the side walls of the coating equipment block it, the two sides of the glue tank space will not overflow. After completion, start the coating equipment, and the coating roller 7 and the coating bottom roller 13 rotate to press the upper base layer 6, the lower base layer 1, and the polyurethane foam material together.
[0024] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. An inclined baffle tooling based on a coating device, characterized in that It includes a coating roller (7), a coating bottom roller (13) located on the coating equipment, and a lifting and moving adjustment unit. The coating roller (7) and the coating bottom roller (13) are in contact with each other to press the upper base layer (6) and the lower base layer (1). The lifting and moving adjustment unit is relatively arranged on the coating equipment, and an adjustment rod (8) is rotatably arranged between the lifting and moving adjustment units. The lifting and moving adjustment unit is used to drive the adjustment rod (8) to move radially and axially in the moving direction of the lower base layer (1). The inclined baffle (5) arranged on the adjustment rod (8) is placed on the upper base layer (6) so that the inclined baffle (5), the upper base layer (6) and the lower base layer (1) form a semi-closed glue tank space for accommodating polyurethane foam material. The glue tank space is located at the contact position of the coating roller (7) and the coating bottom roller (13), so that the coating roller (7) and the coating bottom roller (13) press the upper base layer (6), the lower base layer (1) and the polyurethane foam material together.
2. The inclined baffle tooling based on a coating device according to claim 1, characterized in that: The lifting and moving adjustment unit includes a fixed plate (2) fixedly arranged on the coating equipment, a movable plate (3) slidably adjusted on the fixed plate (2), and a bracket (4) arranged on the movable plate (3). An open U-shaped groove (14) is formed on the bracket (4), and the adjustment rod (8) is clamped in the U-shaped groove (14). The end of the adjustment rod (8) forms a threaded structure, and a nut for clamping the bracket (4) is threadedly connected to the adjustment rod (8).
3. The inclined baffle tooling based on a coating device according to claim 2, wherein: A waist-shaped hole (10) is formed on the movable plate (3), and a bolt passing through the waist-shaped hole (10) is connected to a screw hole (11) formed on the fixed plate (2).
4. A kind of inclined baffle tooling based on a coating device according to any one of claims 1-3, characterized in that: An inclined section (9) is formed at the contact position between the inclined baffle (5) and the lower base layer (1).
5. The inclined baffle tooling based on a coating device according to claim 4, wherein: A sticker (12) for separating the polyurethane foam material from the advancing lower base layer (1) is connected to the inclined baffle (5).