Novel polyurethane cradle
By designing a new type of polyurethane cradle and utilizing a servo reducer and telescopic cylinder structure, the problem of internal gas discharge in polyurethane products was solved, improving product quality and safety, and adapting to the fixing of polyurethane products of different sizes.
Patent Information
- Application Number
- CN202422923889.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Polyurethane products cannot effectively expel internal gases during the molding process, resulting in a loose product structure and poor quality.
A novel polyurethane cradle is designed, which is driven to swing by a servo reducer. Combined with a telescopic cylinder and a pull plate structure, it realizes the vibration discharge of gas inside the polyurethane. The opening and closing degree of the plate is adjusted by the cylinder to accommodate polyurethane products of different volumes.
It effectively removes gas from the inside of polyurethane, prevents structural loosening, improves product quality, reduces safety hazards, and is suitable for fixing polyurethane products of different sizes.
Smart Images

Figure CN223918404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fixing device technology, and in particular to a novel polyurethane cradle. Background Technology
[0002] Polyurethane is a polymer containing urethane groups in its macromolecular backbone, called polyurethane. Polyurethane is divided into two main categories: polyester polyurethane and polyether polyurethane. Polyurethane has many excellent properties, so it has a wide range of applications.
[0003] In the market, when manufacturing polyurethane products, air bubbles inside the polyurethane cannot be expelled. After the product is formed, the gas remaining inside causes the product structure to be relatively loose and the quality to be poor. Utility Model Content
[0004] The purpose of this invention is to provide a novel polyurethane cradle to solve the problems mentioned in the background section.
[0005] The present invention relates to a novel polyurethane rocker arm, comprising a base plate, with vertical plates fixedly connected to the front and rear sides of the top surface of the base plate. A supporting rocker arm is provided between the two vertical plates. A rocker arm shaft is rotatably connected to the opposing sides of the vertical plates near the top. The supporting rocker arm is fixedly sleeved on the rocker arm shaft. A fixing plate is fixedly connected to the left side of the inner side of the supporting rocker arm near the top. A positioning hole is provided on the top of the fixing plate. A long pull plate is movably connected to the left side of the supporting rocker arm. A short pull plate is movably connected to the top of the inner side of the long pull plate. An adjusting pressure plate is hinged to the bottom of the inner side of the short pull plate. A telescopic cylinder is fixedly connected to the front side of the inner side of the supporting rocker arm near the bottom. The telescopic cylinder is movably connected to the long pull plate.
[0006] In one embodiment, a connecting shaft is rotatably connected to the top left side of the support cradle, and the front and rear sides of the middle of the long pull plate are respectively fixedly sleeved on both ends of the connecting shaft.
[0007] In one embodiment, the left end of the telescopic cylinder is a cylinder shaft, and a fisheye connector is fixedly connected to the left end of the cylinder shaft. A cylinder connecting shaft is fixedly connected to the front and rear sides of the bottom of the long pull plate. The left end of the fisheye connector is movably sleeved on the middle part of the surface of the cylinder connecting shaft. A long rotating shaft is fixedly connected to the front and rear sides of the top of the long pull plate. The upper short plate of the short pull plate is movably sleeved on the middle part of the surface of the long rotating shaft.
[0008] In one embodiment, the left side of the top of the support rocker arm is connected to the adjusting pressure plate via a pin, the lower end of the inner side of the short pull plate is fixedly connected to a short rotating shaft, and the middle part of the adjusting pressure plate is movably sleeved on the short rotating shaft.
[0009] In one embodiment, a servo reducer is fixedly connected to the rear side of the rear vertical plate. The motor shaft of the servo reducer is arranged facing forward. Both ends of the motor shaft are movably sleeved on the front and rear vertical plates, respectively. A small gear is fixedly sleeved on the middle of the surface of the motor shaft, and a large gear is fixedly sleeved on the middle of the surface of the cradle shaft. The small gear and the large gear mesh with each other.
[0010] In one embodiment, the telescopic cylinder, cylinder shaft, support rocker arm, long pull plate, short pull plate, and adjustment plate are an integrated structure.
[0011] The beneficial effects provided by this utility model are:
[0012] By cooperating with each component, the polyurethane model is fixed on the fixed plate, allowing the cradle to swing back and forth. This vibration expels air from inside the polyurethane, preventing excessive air content in the finished product, thus preventing structural loosening and improving the quality of the finished product. The cradle has anti-vibration features during swing, reducing maintenance and preventing accidents. Furthermore, by adjusting the length of the cylinder shaft, the adjustment plate can be pulled upwards, allowing for adjustment of the opening and closing degree between the adjustment plate and the fixed base as needed, facilitating the placement of larger polyurethane products. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0015] In the attached diagram: 1. Base plate; 2. Vertical plate; 3. Support cradle; 4. Cradle shaft; 5. Fixing plate; 6. Positioning hole; 7. Long pull plate; 8. Short pull plate; 9. Adjusting pressure plate; 10. Telescopic cylinder; 11. Connecting shaft; 12. Cylinder shaft; 13. Fisheye connector; 14. Cylinder connecting shaft; 15. Long rotating shaft; 16. Pin; 17. Short rotating shaft; 18. Servo reducer; 19. Motor shaft; 20. Small gear; 21. Large gear. Detailed Implementation
[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.
[0017] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0018] In one embodiment, such as Figure 1-2 As shown, a novel polyurethane rocker arm includes a base plate 1. Vertical plates 2 are fixedly connected to the front and rear sides of the top surface of the base plate 1. A supporting rocker arm 3 is provided between the two vertical plates 2. A rocker arm shaft 4 is rotatably connected to the opposite sides of the vertical plates 2 near the top. The supporting rocker arm 3 is fixedly sleeved on the rocker arm shaft 4. A fixing plate 5 is fixedly connected to the left side of the inner side of the supporting rocker arm 3 near the top. A positioning hole 6 is opened on the top of the fixing plate 5. A long pull plate 7 is movably connected to the left side of the supporting rocker arm 3. A short pull plate 8 is movably connected to the top of the inner side of the long pull plate 7. An adjusting pressure plate 9 is hinged to the bottom of the inner side of the short pull plate 8. A telescopic cylinder 10 is fixedly connected to the front side of the inner side of the supporting rocker arm 3 near the bottom. The telescopic cylinder 10 is movably connected to the long pull plate 7.
[0019] In order to enable the support rocker arm 3 to swing, a connecting shaft 11 is rotatably connected to the top left side of the support rocker arm 3, and the front and rear sides of the middle of the long pull plate 7 are respectively fixedly sleeved on both ends of the connecting shaft 11.
[0020] In order for the telescopic cylinder 10 to drive the short pull plate 8 to move, the left end of the telescopic cylinder 10 is a cylinder shaft 12, and the left end of the cylinder shaft 12 is fixedly connected to a fisheye connector 13. The front and rear sides of the bottom of the long pull plate 7 are fixedly connected to a cylinder connecting shaft 14. The left end of the fisheye connector 13 is movably sleeved on the middle of the surface of the cylinder connecting shaft 14. The front and rear sides of the top of the long pull plate 7 are fixedly connected to a long rotating shaft 15. The upper short plate of the short pull plate 8 is movably sleeved on the middle of the surface of the long rotating shaft 15.
[0021] In order to enable the short pull plate 8 to drive the adjusting pressure plate 9 to move, the left side of the top of the support rocker 3 is connected to the adjusting pressure plate 9 through a pin 16. The lower end of the inner side of the short pull plate 8 is fixedly connected to a short rotating shaft 17, and the middle part of the adjusting pressure plate 9 is movably sleeved on the short rotating shaft 17.
[0022] In order to drive the rocker arm 3 to swing, a servo reducer 18 is fixedly connected to the rear side of the rear vertical plate 2. The motor shaft 19 of the servo reducer 18 is set facing forward. The two ends of the motor shaft 19 are respectively movably sleeved on the front and rear vertical plates 2. A small gear 20 is fixedly sleeved on the middle of the surface of the motor shaft 19, and a large gear 21 is fixedly sleeved on the middle of the surface of the rocker arm shaft 4. The small gear 20 and the large gear 21 mesh with each other.
[0023] In order to enable the telescopic cylinder 10 to drive the adjusting pressure plate 9 to move, the telescopic cylinder 10, cylinder shaft 12, support rocker arm 3, long pull plate 7, short pull plate 8, and adjusting pressure plate 9 are integrated into one structure.
[0024] Working principle:
[0025] When using this new polyurethane mold device, firstly, the model containing polyurethane is placed on the fixed plate 5. Then, bolts are passed through the polyurethane-containing model and inserted into the positioning holes 6 and tightened to fix the polyurethane model on the fixed plate 5. Subsequently, the servo reducer 18 is started to rotate the motor shaft 19. The motor shaft 19 drives the pinion 20 to rotate, which in turn drives the large gear 21 to rotate. The large gear 21 drives the rocker arm shaft 4 to rotate, which in turn drives the supporting rocker arm 3 to rotate, causing the supporting rocker arm 3 to swing back and forth by 45°, thus expelling the air inside the polyurethane through vibration. The air is discharged to avoid excessive air content inside the polyurethane finished product, thus preventing structural loosening and improving the quality of the finished product. After this step is completed, the telescopic cylinder 10 is activated. The telescopic cylinder 10 can adjust the length of the cylinder shaft 12 under its own force. When the cylinder shaft 12 retracts backward, it drives the long pull plate 7 to tilt backward to the top. The long pull plate 7 drives the short pull plate 8 to stretch backward. The short pull plate 8 pulls the adjusting pressure plate 9 upward, so that the opening and closing degree between the pressure plate 9 and the fixed plate 5 can be adjusted according to the needs, which is convenient for placing large polyurethane products, thus completing a series of tasks.
[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0027] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A new polyurethane cradle, characterized in that, The utility model provides a support cradle, including bottom plate, the top surface of bottom plate is fixedly connected with vertical board in front and back sides, is equipped with support cradle between two vertical boards, the opposite side of vertical board and near top part jointly rotates the support cradle axle of connecting, support cradle is fixedly sleeved on support cradle axle, the left side of support cradle inboard and near top part fixedly connected with fixed plate, the top of fixed plate is equipped with positioning hole, the left side swing joint of support cradle is long pull plate, the top of long pull plate inboard swing joint has short pull plate, the bottom of short pull plate inboard is hinged and has adjusted pressing plate, the front side of support cradle inboard and near bottom fixedly connected with telescopic pneumatic cylinder, and telescopic pneumatic cylinder is swing joint with long pull plate.
2. A novel polyurethane cradle as claimed in claim 1, characterized in that: The top of the left side of the support cradle is rotatably connected to a connecting shaft, and the front and back sides of the middle of the long pull plate are fixedly sleeved at both ends of the connecting shaft.
3. A novel polyurethane cradle as claimed in claim 1, wherein: The left end of the telescopic pneumatic cylinder is a cylinder shaft, the left end of the cylinder shaft is fixedly connected to a fish eye joint, the front and back sides of the bottom of the long pull plate are fixedly connected to a cylinder connecting shaft, the left end of the fish eye joint is swingingly sleeved at the middle of the surface of the cylinder connecting shaft, the front and back sides of the top of the long pull plate are fixedly connected to a long rotating shaft, and the upper end of the short pull plate is swingingly sleeved at the middle of the surface of the long rotating shaft.
4. A novel polyurethane cradle as claimed in claim 1, wherein: The left side of the top of the support cradle is connected to the adjusting pressing plate through a bolt, the lower end of the inside of the short pull plate is fixedly connected to a short rotating shaft, and the middle of the adjusting pressing plate is swingingly sleeved on the short rotating shaft.
5. A novel polyurethane cradle as claimed in claim 1, wherein: The rear side of the rear side vertical plate is fixedly connected to a servo reducer, the motor shaft of the servo reducer is arranged towards the front, the motor shaft is swingingly sleeved on the front and rear vertical plates at both ends, a small gear is fixedly sleeved on the middle of the surface of the motor shaft, a large gear is fixedly sleeved on the middle of the surface of the rocking shaft axle, and the small gear and the large gear are in meshing engagement.
6. A novel polyurethane cradle as claimed in claim 1, wherein: The telescopic pneumatic cylinder, the cylinder shaft, the support cradle, the long pull plate, the short pull plate, and the adjusting plate are integrated structures.