A production process for a polyurethane foam material with precise resilience

Abstract

The present invention discloses a production process of a polyurethane foam material with precise resilience, including a base. In the middle of the top of the base, there is an installation chamber A. Inside the installation chamber A, there is a stirring chamber, and at the bottom inside the installation chamber A, there is an auxiliary stirring device. Through the cooperation of a through pipe, a piston plate A, a moving rod, a turntable, a connecting rod, a hinged rod A, a mounting bracket, a bevel gear A, a bevel gear B, and a rotating rod B, during the process of stirring the raw materials for making the foam, the force of the rotation of the rotating rod A can further drive the shaking amplitude of the raw materials located inside the stirring chamber, so that these raw materials can fully contact the stirring blades during the stirring process, thereby mixing various raw materials, ensuring that there is no accumulation of a single material inside the mixture. Moreover, when stirring in this way, the stirring efficiency of the raw materials can be improved, greatly shortening the time required for manufacturing the foam.

Description

Technical Field

[0001] The present invention relates to the technical field of foam manufacturing, and specifically to a production process of a polyurethane foam material with precise resilience. Background Art

[0002] Foam is a material obtained by foaming plastic particles, simply referred to as foam. Foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, CR, EVA, cross-linked PE, SBR, EPDM, etc. Foam has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixation, easy to use, flexible bending, ultra-thin volume, and reliable performance. After adding specific materials, foam needs to be mixed and stirred to mix these raw materials together, and then foam can be produced.

[0003] There are certain deficiencies in current foam manufacturing equipment;

[0004] The finished product of foam needs to be made by mixing and stirring multiple materials. However, during the mixing process of these materials, if the stirring is not sufficient, it is easy to cause the accumulation of materials, which will lead to the formation of certain lumps in the produced foam, thus affecting the quality of the foam and also resulting in the scrapping of some of the produced foam.

[0005] During the stirring process of the raw materials for foam production, it takes a certain amount of time. Basically, during the stirring process, workers observe whether the raw materials are stirred completely through the stirring situation on the surface of the mixture. However, observing in this way cannot directly observe the stirring situation inside the materials, which will to a certain extent affect the yield of the produced foam. Summary of the Invention

[0006] The purpose of the present invention is to provide a production process of a polyurethane foam material with precise resilience to solve the related problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A production device for polyurethane foam materials with precise resilience, including a base. In the middle of the top of the base, there is an installation chamber A. Inside the installation chamber A, there is a stirring chamber. At the bottom inside the installation chamber A, there is an auxiliary stirring device. On both sides of the top of the base, there are connecting seats symmetrically. On one side of the connecting seat, there is a servo motor. The output end of the servo motor is provided with a connecting shaft, and one side of the connecting shaft is connected to the installation chamber A. On the top of both sides of the installation chamber A, there are electric cylinders symmetrically. Between the tops of the two groups of electric cylinders, there is a cover plate. On the top of the cover plate, there is a driving motor A. The output end of the driving motor A is provided with a rotating shaft A. At the bottom of the rotating shaft A, there is a rotating rod A. On the outer side of the rotating rod A, there are evenly arranged multiple groups of stirring blades. At the bottom of the rotating rod A, there is a connecting rod. At the bottom of the connecting rod, there is a bevel gear B. At one end of the installation chamber A, there is an observation tube. At the bottom of the observation tube, there is a pumping tube, and the pumping tube extends into the interior of the stirring chamber. At the top of the observation tube, there is a connecting tube. At the top of the connecting tube, there is an installation chamber B. At one end of the installation chamber B, there is a driving motor B. The output end of the driving motor B is provided with a rotating shaft B. At one end of the rotating shaft B, there is a U-shaped rod. On the outer side of the U-shaped rod, there is a hinged rod B. At the bottom of the hinged rod B, there is a piston plate B.

[0008] Preferably, the auxiliary stirring device is composed of a moving rod, a turntable, a hinged rod A, an installation frame, a bevel gear A, a bevel gear B, and a rotating rod B. At the bottom inside the installation chamber A, there is an installation frame. Inside the installation frame, the rotating rod B is rotatably connected by a fixed shaft. At both ends of the rotating rod B, there are turntables symmetrically. In the middle of the outer side of the rotating rod B, there is a bevel gear A. At one end of the turntable, there is a hinged rod A. On both sides of the bottom inside the stirring chamber, there are through pipes symmetrically. Inside the through pipes, there is a piston plate A slidingly connected. At the bottom of the piston plate A, there is a moving rod, and the moving rod is hinged to the hinged rod A.

[0009] Preferably, there is a connecting groove inside the rotating rod A. On both sides of the rotating shaft A, there are limit rods symmetrically, and the connecting groove is adapted to the limit rods.

[0010] Preferably, both the servo motor and the driving motor A are provided with motor chambers on the outside, and there is sound-absorbing cotton inside the motor chambers.

[0011] Preferably, there is a collar at the top of the hinged rod B, and the collar is adapted to the U-shaped rod.

[0012] Preferably, one end of the pumping tube extends into the interior of the stirring chamber, and there is a rubber sealing ring at the connection between the pumping tube and the installation chamber A.

[0013] Preferably, there are connecting discs at the bottom of the rotating rod A and the top of the connecting rod, and the connecting discs are connected by bolts.

[0014] Preferably, fixed plates are symmetrically arranged on both sides of the installation bin A, and the electric cylinder is connected to the fixed plates.

[0015] A method for using a production device for polyurethane foam materials with precise rebound force is as follows:

[0016] During the production of the foam, first, the prepared materials are sequentially placed into the mixing bin, and the electric cylinder is controlled to start. Then, the electric cylinder drives the cover plate to move downward to cover the installation bin A. At this time, the driving motor A is started to drive the rotating shaft A to rotate. Then, the rotating shaft A drives the rotating rod A and the stirring blades to rotate, so that the stirring blades mix the materials located inside the mixing bin.

[0017] Step 2: During the mixing of the materials, the rotating rod A drives the connecting rod and the bevel gear B to rotate, so that the bevel gear B drives the bevel gear A, the rotating rod B and the turntable to rotate. During the rotation of the turntable, the articulated rod A is pulled to move along its rotation trajectory, thereby driving the moving rod and the piston plate A to perform reciprocating motions. Then, during the up-and-down reciprocating motion of the piston plate A, the raw materials located inside the mixing bin are continuously pumped and pushed, thereby driving the raw materials inside the mixing bin to shake, and further dispersing the raw materials located inside the mixing bin to prevent the raw materials from accumulating and affecting the mixing.

[0018] Step 3: When the mixing reaches a certain time, the driving motor B is started. At this time, the driving motor B drives the rotating shaft B and the U-shaped rod to rotate. Then, during the rotation of the U-shaped rod, the articulated rod B and the piston plate B are driven to perform reciprocating motions, thereby continuously extracting the materials located at the bottom of the mixing bin. When the materials are pumped into the observation tube, the external staff can observe the mixture located inside the mixing bin through the observation tube. After observing for a period of time, if there is no situation of insufficient mixing, it means that the mixing is completed.

[0019] Step 4: After the mixing is completed, the electric cylinder is started. Then, the electric cylinder drives the cover plate to move upward to open the installation bin A. Then, the servo motor is started, so that the servo motor drives the connecting shaft to rotate. During the rotation of the connecting shaft, the installation bin A is driven to flip by a certain angle, thereby pouring out the materials located inside the mixing bin.

[0020] Compared with the prior art, the present invention provides a production device for polyurethane foam materials with precise rebound force, having the following beneficial effects:

[0021] 1. In the present invention, through the cooperation of a through pipe, a piston plate A, a moving rod, a turntable, a connecting rod, a hinged rod A, a mounting bracket, a bevel gear A, a bevel gear B, and a rotating rod B, during the process of stirring the raw materials for making foam, the force generated by the rotation of the rotating rod A can further drive the shaking amplitude of the raw materials inside the stirring bin, enabling these raw materials to come into full contact with the stirring blades during the stirring process, thereby mixing various raw materials, ensuring that there is no accumulation of single materials inside the mixture, and when stirring in this way, it can also improve the stirring efficiency of the raw materials and greatly shorten the time required for manufacturing foam.

[0022] 2. In the present invention, through the cooperation of a mounting bin B, a connecting pipe, an observation pipe, a pumping pipe, a driving motor B, a rotating shaft B, a piston plate B, and a hinged rod B, during the process of making foam, it is possible to continuously extract the raw materials being stirred at the bottom of the stirring bin, enabling the staff to observe the stirring situation of the raw materials inside the stirring bin in real time, effectively reducing the difficulty of observing the materials during the stirring process, and preventing the occurrence of the situation where single materials accumulate and do not disperse due to insufficient stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front sectional view of the present invention;

[0024] Figure 2 is the front sectional view at the turntable of the present invention;

[0025] Figure 3 is the top view at the turntable of the present invention;

[0026] Figure 4 is the front view of the present invention;

[0027] Figure 5 is the side sectional view at the observation pipe of the present invention;

[0028] Figure 6 is the top view at the rotating rod A of the present invention.

[0029] In the figure: 1. Base; 2. Connecting seat; 3. Servo motor; 4. Connecting shaft; 5. Stirring bin; 6. Electric cylinder; 7. Cover plate; 8. Rotating shaft A; 9. Driving motor A; 10. Rotating rod A; 11. Stirring blade; 12. Through pipe; 13. Piston plate A; 14. Moving rod; 15. Mounting bin A; 16. Turntable; 17. Connecting rod; 18. Hinged rod A; 19. Mounting bracket; 20. Bevel gear A; 21. Bevel gear B; 22. Rotating rod B; 23. U-shaped rod; 24. Mounting bin B; 25. Connecting pipe; 26. Observation pipe; 27. Pumping pipe; 28. Driving motor B; 29. Rotating shaft B; 30. Piston plate B; 31. Hinged rod B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-6 , the present invention provides a technical solution: a production device for polyurethane foam materials with precise rebound force, including a base 1. An installation bin A15 is provided in the middle of the top of the base 1. A stirring bin 5 is provided inside the installation bin A15. An auxiliary stirring device is provided at the bottom inside the installation bin A15. Connecting seats 2 are symmetrically provided on both sides of the top of the base 1. A servo motor 3 is provided on one side of the connecting seat 2. The output end of the servo motor 3 is provided with a connecting shaft 4. One side of the connecting shaft 4 is connected to the installation bin A15. Electric cylinders 6 are symmetrically provided at the top of both sides of the installation bin A15. A cover plate 7 is provided between the tops of the two groups of electric cylinders 6. A driving motor A9 is provided on the top of the cover plate 7. The output end of the driving motor A9 is provided with a rotating shaft A8. A rotating rod A10 is provided at the bottom of the rotating shaft A8. A plurality of groups of stirring blades 11 are evenly provided on the outer side of the rotating rod A10. A connecting rod 17 is provided at the bottom of the rotating rod A10. A bevel gear B21 is provided at the bottom of the connecting rod 17. An observation tube 26 is provided at one end of the installation bin A15. A pumping tube 27 is provided at the bottom of the observation tube 26. The pumping tube 27 extends into the interior of the stirring bin 5. A connecting tube 25 is provided at the top of the observation tube 26. An installation bin B24 is provided at the top of the connecting tube 25. A driving motor B28 is provided at one end of the installation bin B24. The output end of the driving motor B28 is provided with a rotating shaft B29. A U-shaped rod 23 is provided at one end of the rotating shaft B29. A hinged rod B31 is provided on the outer side of the U-shaped rod 23. A piston plate B30 is hinged at the bottom of the hinged rod B31.

[0032] As a preferred solution of this embodiment: The auxiliary stirring device is composed of a moving rod 14, a turntable 16, a hinged rod A18, an installation frame 19, a bevel gear A20, a bevel gear B21, and a rotating rod B22. An installation frame 19 is provided at the bottom inside the installation bin A15. The rotating rod B22 is rotatably connected to the inside of the installation frame 19 by a fixed shaft. Turntables 16 are symmetrically provided at both ends of the rotating rod B22. A bevel gear A20 is provided in the middle of the outer side of the rotating rod B22. A hinged rod A18 is provided at one end of the turntable 16. Through tubes 12 are symmetrically provided on both sides of the bottom inside the stirring bin 5. A piston plate A13 is slidably connected to the inside of the through tube 12. A moving rod 14 is provided at the bottom of the piston plate A13. The moving rod 14 is hinged to the hinged rod A18 to improve the subsequent stirring effect on the materials.

[0033] As a preferred solution of this embodiment: a connection groove is provided inside the rotating rod A10, limiting rods are symmetrically provided on both sides of the rotating shaft A8, and the connection groove is adapted to the limiting rods, which facilitates driving the rotating rod A10 to rotate subsequently, so that the rotating shaft A8 can slide along the rotating rod A10.

[0034] As a preferred solution of this embodiment: motor chambers are provided on the outer sides of the servo motor 3 and the driving motor A9, and sound-absorbing cotton is provided inside the motor chambers to reduce the noise generated by them.

[0035] As a preferred solution of this embodiment: a collar is provided at the top of the hinge rod B31, and the collar is adapted to the U-shaped rod 23, which facilitates installation.

[0036] As a preferred solution of this embodiment: one end of the material extraction pipe 27 extends into the stirring chamber 5, and a rubber sealing ring is provided at the connection between the material extraction pipe 27 and the installation chamber A15 to improve the sealing effect.

[0037] As a preferred solution of this embodiment: connection plates are provided at the bottom of the rotating rod A10 and the top of the connecting rod 17, and the connection plates are connected by bolts to improve the fixing effect.

[0038] As a preferred solution of this embodiment: fixing plates are symmetrically provided on both sides of the installation chamber A15, and the electric cylinder 6 is connected to the fixing plates to facilitate installation.

[0039] Embodiment 1: As shown in Figure 1 、 2 、3 and 4, during the production of the foam, first, the prepared materials are sequentially put into the stirring chamber 5, and the electric cylinder 6 is controlled to start. Then, the electric cylinder 6 drives the cover plate 7 to move downward to cover the installation chamber A15. At this time, the driving motor A9 is started to drive the rotating shaft A8 to rotate. Then, the rotating shaft A8 drives the rotating rod A10 and the stirring blades 11 to rotate, so that the stirring blades 11 mix the materials located inside the stirring chamber 5.

[0040] Embodiment 2: As shown in Figure 1-5 , during the mixing of the materials, the rotating rod A10 drives the connecting rod 17 and the bevel gear B21 to rotate, so that the bevel gear B21 drives the bevel gear A20, the rotating rod B22 and the turntable 16 to rotate. During the rotation of the turntable 16, the hinge rod A18 is pulled to move along its rotation trajectory, thereby driving the moving rod 14 and the piston plate A13 to perform reciprocating motions. Then, during the up-and-down reciprocating motion of the piston plate A13, the raw materials located inside the stirring chamber 5 are continuously pumped and pushed, thereby driving the raw materials inside the stirring chamber 5 to shake, and then the raw materials located inside the stirring chamber 5 are dispersed to prevent the raw materials from accumulating and affecting the stirring.

[0041] Working principle: During the production of the foam, first, the previously prepared materials are sequentially placed into the interior of the stirring bin 5, and the electric cylinder 6 is controlled to start. Then, the electric cylinder 6 drives the cover plate 7 to move downward to cover the installation bin A15. At this time, the driving motor A9 is started to drive the rotating shaft A8 to rotate. Then, the rotating shaft A8 drives the rotating rod A10 and the stirring blade 11 to rotate, so that the stirring blade 11 mixes the materials located inside the stirring bin 5;

[0042] During the mixing of the materials, the rotating rod A10 drives the connecting rod 17 and the bevel gear B21 to rotate, so that the bevel gear B21 drives the bevel gear A20, the rotating rod B22 and the turntable 16 to rotate. During the rotation of the turntable 16, the articulated rod A18 is pulled to move along its rotation trajectory, thereby driving the moving rod 14 and the piston plate A13 to perform reciprocating motions. Then, during the up-and-down reciprocating motion of the piston plate A13, the raw materials located inside the stirring bin 5 are continuously pumped and pushed, thereby driving the raw materials inside the stirring bin 5 to shake, and then the raw materials located inside the stirring bin 5 are dispersed to prevent the raw materials from accumulating and affecting the stirring;

[0043] When the stirring reaches a certain time, the driving motor B28 is started. At this time, the driving motor B28 drives the rotating shaft B29 and the U-shaped rod 23 to rotate. Then, during the rotation of the U-shaped rod 23, the articulated rod B31 and the piston plate B30 are driven to perform reciprocating motions, thereby continuously pumping the materials located at the bottom of the stirring bin 5. When the materials are pumped into the observation tube 26, the external staff can observe the mixture located inside the stirring bin 5 through the observation tube 26. After observing for a period of time, if there is no situation of insufficient mixing, it means that the stirring is completed;

[0044] After the stirring is completed, the electric cylinder 6 is started. Then, the electric cylinder 6 drives the cover plate 7 to move upward, thereby opening the installation bin A15. Then, the servo motor 3 is started, so that the servo motor 3 drives the connecting shaft 4 to rotate. During the rotation of the connecting shaft 4, the installation bin A15 is driven to flip by a certain angle, thereby pouring out the materials located inside the stirring bin 5.

[0045] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Any simple modification or equivalent replacement of the technical solution of the present invention by those of ordinary skill in the art does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A production device for polyurethane foam materials with precise resilience, including a base (1), characterized in that: An installation bin A (15) is provided in the middle of the top of the base (1). A stirring bin (5) is provided inside the installation bin A (15). An auxiliary stirring device is provided at the bottom inside the installation bin A (15). Connecting seats (2) are symmetrically provided on both sides of the top of the base (1). A servo motor (3) is provided on one side of the connecting seat (2). The output end of the servo motor (3) is provided with a connecting shaft (4). One side of the connecting shaft (4) is connected to the installation bin A (15). Electric cylinders (6) are symmetrically provided at the top of both sides of the installation bin A (15). A cover plate (7) is provided between the tops of the two groups of electric cylinders (6). A driving motor A (9) is provided on the top of the cover plate (7). The output end of the driving motor A (9) is provided with a rotating shaft A (8). A rotating rod A (10) is provided at the bottom of the rotating shaft A (8). A plurality of groups of stirring blades (11) are evenly provided on the outer side of the rotating rod A (10). A connecting rod (17) is provided at the bottom of the rotating rod A (10). A bevel gear B (21) is provided at the bottom of the connecting rod (17). One end of the installation bin A (15) is provided with an observation tube (26). A pumping tube (27) is provided at the bottom of the observation tube (26). The pumping tube (27) extends into the interior of the stirring bin (5). A connecting tube (25) is provided at the top of the observation tube (26). An installation bin B (24) is provided at the top of the connecting tube (25). A driving motor B (28) is provided at one end of the installation bin B (24). The output end of the driving motor B (28) is provided with a rotating shaft B (29). A U-shaped rod (23) is provided at one end of the rotating shaft B (29). An articulated rod B (31) is provided on the outer side of the U-shaped rod (23). A piston plate B (30) is hinged at the bottom of the articulated rod B (31). Wherein: The auxiliary stirring device is composed of a moving rod (14), a turntable (16), an articulated rod A (18), a mounting bracket (19), a bevel gear A (20), a bevel gear B (21) and a rotating rod B (22). A mounting bracket (19) is provided at the bottom inside the installation bin A (15). A rotating rod B (22) is rotatably connected to the inside of the mounting bracket (19) through a fixed shaft. Turntables (16) are symmetrically provided at both ends of the rotating rod B (22). A bevel gear A (20) is provided in the middle on the outer side of the rotating rod B (22). An articulated rod A (18) is provided at one end of the turntable (16). Through pipes (12) are symmetrically provided on both sides of the bottom inside the stirring bin (5). A piston plate A (13) is slidably connected to the inside of the through pipe (12). A moving rod (14) is provided at the bottom of the piston plate A (13). The moving rod (14) is hinged to the articulated rod A (18).

2. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: A connecting groove is provided inside the rotating rod A (10). Limiting rods are symmetrically provided on both sides of the rotating shaft A (8), and the connecting groove is adapted to the limiting rods.

3. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: Motor chambers are provided on the outer sides of the servo motor (3) and the drive motor A (9), and sound-absorbing cotton is provided inside the motor chambers.

4. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: A collar is provided at the top of the articulated rod B (31), and the collar is adapted to the U-shaped rod (23).

5. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: One end of the material extraction pipe (27) extends into the stirring chamber (5), and a rubber sealing ring is provided at the connection between the material extraction pipe (27) and the installation chamber A (15).

6. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: Connection plates are provided at the bottom of the rotating rod A (10) and the top of the connecting rod (17), and the connection plates are connected by bolts.

7. A production device for polyurethane foam materials with precise resilience according to claim 1, characterized in that: Fixing plates are symmetrically provided on both sides of the installation chamber A (15), and the electric cylinder (6) is connected to the fixing plates.

8. A method for using a production device for polyurethane foam materials with precise resilience according to any one of claims 1-7 is as follows: Step 1: During the production of the foam, first put the previously prepared materials into the stirring chamber (5) in sequence, control the electric cylinder (6) to start, and then the electric cylinder (6) drives the cover plate (7) to move downward to cover the installation chamber A (15). At this time, start the drive motor A (9) to drive the rotating shaft A (8) to rotate, and then the rotating shaft A (8) drives the rotating rod A (10) and the stirring blades (11) to rotate, so that the stirring blades (11) mix the materials located inside the stirring chamber (5); Step 2: During the mixing of the materials, the rotating rod A (10) drives the connecting rod (17) and the bevel gear B (21) to rotate, so that the bevel gear B (21) drives the bevel gear A (20), the rotating rod B (22) and the turntable (16) to rotate. During the rotation of the turntable (16), the articulated rod A (18) is pulled to move along its rotation trajectory, thereby driving the moving rod (14) and the piston plate A (13) to perform reciprocating motions. Then, during the up and down reciprocating motion of the piston plate A (13), the raw materials located inside the stirring chamber (5) are continuously pumped and pushed, thereby driving the raw materials inside the stirring chamber (5) to shake, and further dispersing the raw materials located inside the stirring chamber (5) to prevent the raw materials from accumulating and affecting the stirring; Step 3: After stirring for a certain period of time, start the drive motor B (28). At this time, the drive motor B (28) drives the rotating shaft B (29) and the U-shaped rod (23) to rotate. Then, during the rotation of the U-shaped rod (23), it drives the articulated rod B (31) and the piston plate B (30) to move reciprocally, thereby continuously extracting the materials at the bottom of the mixing chamber (5). When the materials are drawn into the observation tube (26), the external staff can observe the mixture inside the mixing chamber (5) through the observation tube (26). After observing for a period of time, if there is no insufficient mixing, it indicates that the stirring is completed; Step 4: After the stirring is completed, start the electric cylinder (6). Then, the electric cylinder (6) drives the cover plate (7) to move upward, thereby opening the installation chamber A (15). Then, start the servo motor (3) so that the servo motor (3) drives the connecting shaft (4) to rotate. During the rotation of the connecting shaft (4), it drives the installation chamber A (15) to flip by a certain angle, thereby pouring out the materials inside the mixing chamber (5).

Images