A polyurethane foam winding structure
By designing a detachable limiting block and support frame system, the problems of difficult disassembly of polyurethane rigid foam winding devices and internal gaps and creases are solved, achieving convenient replacement and stable storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHENGNUOMENG GUJIA SPONGE
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-19
AI Technical Summary
Existing rigid polyurethane foam winding devices have non-removable winding rollers, making it difficult to remove large areas of foam, and internal gaps and creases are easily generated during the winding process.
A detachable polyurethane foam winding structure was designed. The combination of limiting blocks and sleeve blocks enables convenient installation and removal of the winding roller. The foam is supported and compressed by a support frame and spring rod system to avoid the formation of internal voids and creases.
It enables convenient replacement and stable storage of polyurethane foam take-up rollers, avoids internal gaps and creases, and improves stability and convenience during transportation.
Smart Images

Figure CN224377197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foam winding technology, specifically a polyurethane foam winding structure. Background Technology
[0002] Rigid polyurethane foam is a new type of synthetic material with thermal insulation and waterproofing functions. Due to its low thermal conductivity, it is widely used in the home decoration industry.
[0003] To facilitate the transport of rigid polyurethane foam to the installation site and reduce surface cracks and creases, it is usually packaged by winding. However, the winding rollers of current rigid polyurethane foam winding devices are not detachable. After winding, it needs to be removed from the end. If the overall area of the rigid polyurethane foam is large, there will be problems such as excessive friction between it and the rotating shaft, making it difficult to remove. In addition, if the rigid polyurethane foam is not compressed during the winding process, gaps may appear inside and creases may be squeezed out during winding and transportation.
[0004] To address the aforementioned issues, we propose an improvement: a polyurethane foam roll-up structure. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] This utility model provides a polyurethane foam winding structure, including a base, side clamps connected to both sides of the base, an U-shaped clamping plate installed on the top of the base, and a winding roller disposed inside the clamping plate.
[0007] The two ends of the take-up roller are respectively connected to L-shaped plugs;
[0008] The inner walls on both sides of the card plate are respectively provided with a first limiting block and a second limiting block;
[0009] The second limiting block is fitted with a sleeve block on its outside;
[0010] The base is provided with a support frame, and spring rods are provided on the inner surface of the support frame facing each other, with the positions of the spring rods on both sides corresponding one-to-one.
[0011] A pressure rod is connected to the top of the spring rod.
[0012] As a preferred technical solution of this utility model, the bottom of the card plate and the side card block are fixedly connected by bolts, the sleeve block is threadedly connected to the side of the card plate, one end of the sleeve block is provided with a slot, and the other end of the sleeve block is coaxially fixedly connected with a knob.
[0013] As a preferred technical solution of this utility model, the second limiting block is rotatably connected to the sleeve block through a slot, and a limiting component is provided at the connection between the sleeve block and the slot. The surfaces of the first limiting block and the second limiting block are both provided with grooves corresponding to the shape of the plug-in.
[0014] As a preferred embodiment of this utility model, the first limiting block is rotatably connected to the inner wall of the card plate, and a servo motor is installed on the outer side of the card plate, with the output shaft of the servo motor being coaxially and fixedly connected to the first limiting block.
[0015] As a preferred embodiment of this utility model, a connecting rod is hinged between the two spring rods at corresponding positions. A through groove is provided in the middle of the connecting rod, and a rotating shaft is rotatably connected to the through groove. Several connecting rods are connected to each other through the rotating shaft.
[0016] As a preferred embodiment of this utility model, a plurality of pressure rods are sequentially sleeved on a rotating shaft, and the pressure rods are rotatably connected to the rotating shaft.
[0017] As a preferred embodiment of this utility model, the cross-section of the support frame is an inverted isosceles trapezoid, and the bottom of the support frame is connected to the base by fixing bolts.
[0018] The beneficial effects of this utility model are:
[0019] 1. This polyurethane foam winding structure uses limiting blocks at both ends to install the winding roller inside the clamping plate. Twisting the sleeve block allows the second limiting block to move, making it easy to remove and place the winding roller. When the overall volume of the polyurethane foam is large, the winding roller can be removed and taken out as a whole. The winding roller and the polyurethane foam roll can be stored together, making it easy to replace and use the winding roller. At the same time, the winding roller can provide internal support for the polyurethane foam roll during storage, preventing internal hollow creases from appearing during storage.
[0020] 2. Adjust the height of the support frame according to the thickness of the polyurethane foam. Before winding begins, adjust the height of the support frame so that the top of the pressure bar contacts the winding roller. As the thickness of the polyurethane foam on the surface of the winding roller increases, press down the spring rod to keep the pressure bar in contact with the outermost surface of the polyurethane foam, thereby improving the stability during the winding process. Attached Figure Description
[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the winding roller structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the support frame structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the spring rod connection structure of this utility model;
[0026] In the diagram: 1. Base; 2. Clamping plate; 3. Side clamping block; 4. Support frame; 5. Pressure rod; 6. Spring rod; 7. Take-up roller; 8. Rotary shaft; 9. Fixing bolt; 10. Servo motor; 11. First limit block; 12. Insert; 13. Second limit block; 14. Sleeve block; 15. Knob; 16. Connecting rod; 17. Through slot; 18. Slot. Detailed Implementation
[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0028] Example: Figure 1-4 As shown, a polyurethane foam winding structure includes a base 1, side clamping blocks 3 connected to both sides of the base 1, a U-shaped clamping plate 2 installed above the base 1, and a winding roller 7 disposed inside the clamping plate 2.
[0029] L-shaped inserts 12 are connected to both ends of the take-up roller 7;
[0030] The inner walls on both sides of the card plate 2 are respectively provided with a first limiting block 11 and a second limiting block 13;
[0031] The second limiting block 13 is fitted with a sleeve block 14;
[0032] A support frame 4 is provided on the base 1, and spring rods 6 are provided on the inner surface of the support frame 4 facing each other, with the positions of the spring rods 6 on both sides corresponding one to one.
[0033] A pressure rod 5 is connected to the top of the spring rod 6.
[0034] The bottom of the card plate 2 is fixedly connected to the side card block 3 by bolts. The sleeve block 14 is threadedly connected to the side of the card plate 2. One end of the sleeve block 14 has a slot 18, and the other end of the sleeve block 14 is coaxially fixedly connected to a knob 15.
[0035] The second limiting block 13 is rotatably connected to the sleeve block 14 via the slot 18, and a limiting component is provided at the connection between the sleeve block 14 and the slot 18. The surfaces of the first limiting block 11 and the second limiting block 13 are both provided with grooves corresponding to the shape of the plug-in 12.
[0036] By rotating the sleeve block 14, the length of the sleeve block 14 extending inward from the clamping plate 2 can be adjusted, thereby adjusting the position of the second limiting block 13. When the sleeve block 14 moves away from the end of the first limiting block 11, the length between the first limiting block 11 and the second limiting block 13 can be increased until the length is greater than the length of the take-up roller 7. At this time, the inserts at both ends of the take-up roller 7 are aligned with the grooves and inserted. Rotating the sleeve block 14 in the opposite direction can fix the take-up roller 7. Similarly, the take-up roller 7 can be removed.
[0037] When the take-up roller 7 is removed, it can be stored together with the polyurethane foam roll, which can reduce creases inside the polyurethane foam during storage, and the take-up roller 7 can be repeatedly recycled.
[0038] The first limiting block 11 is rotatably connected to the inner wall of the card plate 2. A servo motor 10 is installed on the outer side of the card plate 2, and the output shaft of the servo motor 10 is coaxially and fixedly connected to the first limiting block 11.
[0039] After the winding roller 7 is installed, it is rotatably connected to the clamping plate 2 through the first limiting block 11 and the second limiting block 13. At this time, the servo motor 10 can be started to drive the winding roller 7 to rotate and wind up the polyurethane foam.
[0040] A connecting rod 16 is hinged between two spring rods 6 at corresponding positions. A through groove 17 is provided in the middle of the connecting rod 16. A rotating shaft 8 is rotatably connected to the through groove 17. Several connecting rods 16 are connected to each other through the rotating shaft 8.
[0041] Several pressure rods 5 are sequentially sleeved on the rotating shaft 8, and the pressure rods 5 are rotatably connected to the rotating shaft 8.
[0042] The cross-section of the support frame 4 is an inverted isosceles trapezoid, and the bottom of the support frame 4 is connected to the base 1 by fixing bolts 9.
[0043] Adjust the height of the support frame 4 according to the thickness of the polyurethane foam. Before winding begins, adjust the height of the support frame 4 so that the top of the pressure bar 5 contacts the winding roller 7. As the thickness of the polyurethane foam on the surface of the winding roller 7 increases, press down the spring bar 6 to keep the pressure bar 5 in contact with the outermost surface of the polyurethane foam and maintain the compression of the polyurethane foam roll during the winding process.
[0044] Working principle: In use, the length of the sleeve block 14 extending inward from the clamping plate 2 can be adjusted by rotating the sleeve block 14, thereby adjusting the position of the second limiting block 13. When the sleeve block 14 moves away from the first limiting block 11, the length between the first limiting block 11 and the second limiting block 13 increases until this length is greater than the length of the winding roller 7. At this time, the inserts at both ends of the winding roller 7 are aligned with the grooves and inserted. Rotating the sleeve block 14 in the opposite direction can fix the winding roller 7. Similarly, the winding roller 7 can be removed. The height of the support frame 4 is adjusted according to the thickness of the polyurethane foam. Before winding begins, the height of the support frame 4 is adjusted so that the top of the pressure rod 5 contacts the winding roller 7. As the thickness of the polyurethane foam on the surface of the winding roller 7 increases, the spring rod 6 is pressed down to keep the pressure rod 5 in contact with the outermost surface of the polyurethane foam, thus maintaining the compression of the polyurethane foam roll during the winding process.
[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A polyurethane foam winding structure, comprising a base (1), characterized in that, The base (1) is connected to side clamps (3) on both sides, and a U-shaped clamping plate (2) is installed on the top of the base (1). A winding roller (7) is provided inside the clamping plate (2). The two ends of the take-up roller (7) are respectively connected to L-shaped plugs (12); The inner walls on both sides of the card plate (2) are respectively provided with a first limiting block (11) and a second limiting block (13); The second limiting block (13) is fitted with a sleeve block (14); A support frame (4) is provided on the base (1), and spring rods (6) are provided on the inner surface of the support frame (4) facing each other, with the positions of the spring rods (6) on both sides corresponding one to one; A pressure rod (5) is connected to the top of the spring rod (6).
2. The polyurethane foam winding structure according to claim 1, characterized in that, The bottom of the card plate (2) is fixedly connected to the side card block (3) by bolts. The sleeve block (14) is threadedly connected to the side of the card plate (2). One end of the sleeve block (14) is provided with a slot (18), and the other end of the sleeve block (14) is coaxially fixedly connected with a knob (15).
3. The polyurethane foam winding structure according to claim 2, characterized in that, The second limiting block (13) is rotatably connected to the sleeve block (14) through the slot (18), and a limiting component is provided at the connection between the sleeve block (14) and the slot (18). The surfaces of the first limiting block (11) and the second limiting block (13) are both provided with grooves corresponding to the shape of the plug-in (12).
4. The polyurethane foam winding structure according to claim 1, characterized in that, The first limiting block (11) is rotatably connected to the inner wall of the card plate (2), and a servo motor (10) is installed on the outer side of the card plate (2). The output shaft of the servo motor (10) is coaxially fixedly connected to the first limiting block (11).
5. The polyurethane foam winding structure according to claim 1, characterized in that, A connecting rod (16) is hinged between the two spring rods (6) at the corresponding positions. A through groove (17) is provided in the middle of the connecting rod (16). A rotating shaft (8) is rotatably connected to the through groove (17). Several connecting rods (16) are connected to each other through the rotating shaft (8).
6. A polyurethane foam winding structure according to claim 5, characterized in that, Several pressure rods (5) are sequentially sleeved on the rotating shaft (8), and the pressure rods (5) are rotatably connected to the rotating shaft (8).
7. The polyurethane foam winding structure according to claim 1, characterized in that, The cross-section of the support frame (4) is an inverted isosceles trapezoid, and the bottom of the support frame (4) is connected to the base (1) by fixing bolts (9).