High-efficiency foam foaming machine and foaming process

Abstract

The invention discloses a high-efficiency foam foaming machine and a foaming process, and belongs to the technical field of automobile cushion foam foaming. The high-efficiency foam foaming machine and the foaming process comprise an equipment rack and a heating section which is mounted on the equipment rack and is used for heating raw materials to a temperature required by foaming; a plasticizing section used for melting raw materials and extruding the raw materials for forming is further mounted on the equipment rack, a die head is arranged at an extrusion opening of the plasticizing section, a feeding tank is connected to a feeding opening of the heating section in a penetrating manner, and a combined screw rod for variable-speed transmission of the materials is arranged in the heating section and the plasticizing section; a power mechanism for driving the feeding screw rod and the foaming screw rod to rotate at variable speed is arranged on the equipment rack; variable-speed transmission of raw materials at the heating section and the plasticizing section can be controlled through the combined screw rod, so that the raw materials can be fully heated, melted and foamed, and the foaming quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seat cushion foaming, in particular to a high-efficiency foam foaming machine and a foaming process. Background Art

[0002] Car seat cushion foam is mainly used to improve the comfort and support of the seat. It also has the functions of shock absorption, sound insulation and heat preservation. The foam raw materials are formed by foaming in a foaming machine. The foaming machine injects gas into the material through heating and pressure to expand it into a foam body. The speed of the screw in the foaming machine affects the heating and plasticizing process of the raw materials.

[0003] For example, the patent disclosed in the publication number CN116604761B discloses a conductive foaming machine, which includes a working frame, a material passing box is provided on the top of the working frame; a feeding barrel is provided above the material passing box; a first motor is provided above the material passing box; a conveying box is provided on the front side of the material passing box; a foaming die head is provided at the front end of the conveying box, and the filter plate can achieve a reciprocating vibration effect, effectively avoiding the accumulation of waste residues in the slurry and clogging the filter plate, thereby ensuring the feeding efficiency of the slurry, and the compression action of the piston plate and the vibration action of the filter plate can share the first motor drive, which helps to reduce the weight and cost of the equipment, and simplifies the overall use process of the equipment, and solves the problem that when the existing conductive foam foaming machine is in use, the slurry is easy to adhere to the side wall of the feeding pipe, and the waste residues in the slurry will accumulate on the filter plate in large quantities, resulting in poor feeding efficiency of the slurry, and the material is easy to accumulate in the foaming die head, which is troublesome to disassemble and clean, and increases the workload of the operator.

[0004] For another example, the patent with publication number CN222360517U discloses a foam foaming machine, including a stirring barrel, a stirring mechanism, a heating mechanism and an air intake mechanism. The heating mechanism includes a heating tube and a heating plate. The heating plate is hinged to the outer wall of the stirring barrel and is two semicircular arc structures. The stirring mechanism includes a stirring motor and a stirring paddle. The heating tube and the stirring paddle are coaxially arranged. The stirring paddle is a frame-type structure. A plurality of inclined blades are arranged on the inner side of the frame-type structure, so that the material can flow upward. The air intake mechanism includes at least two air inlets with one-way valves. The air inlets are arranged at the bottom of the stirring barrel and are symmetrically arranged. The foam foaming machine can heat the material evenly and has a large stirring range, which is conducive to sufficient mixing of the material and the foaming agent. The heating mechanism and other components are convenient for disassembly and assembly.

[0005] For another example, the patent with publication number CN213797725U discloses a foam foaming machine, which includes a base, a stirring tank is connected to the top of the base through a bracket, a first motor is installed on the top of the stirring tank through a motor bracket, a reducer is connected to the end of the rotating shaft of the first motor, a stirring shaft is provided at the end of the output shaft of the reducer, a stirring shaft is connected to the stirring shaft with a stirring rod, and an emulsifying knife is provided on the stirring rod; a fan is provided on the top of the base located on the right side of the stirring tank through a mounting seat, an air outlet of the fan is connected to an air pipe, the air pipe is connected to the air inlet at the top of the stirring tank, and an air valve is installed on the air pipe; electric heating pipes are installed on the inner walls on both sides of the stirring tank. The foam foaming machine is simple to operate and has a clear structure, which provides better conditions for the generation of foam, makes the produced foam of better quality, effectively guarantees the qualified rate of foam, improves the production efficiency of foam, and increases corporate profits; the main function of the heating section of the foaming machine is to heat the raw materials to a molten state to provide conditions for subsequent plasticization and foaming. When the screw speed of the heating section is low, the shear heat can be reduced to avoid excessive decomposition of heat-sensitive materials, and it is helpful to evenly heat the raw materials. The screw speed in the plasticizing section directly affects the plasticizing effect and foaming quality. Too low a screw speed may lead to incomplete plasticization and poor melt fluidity, affecting the foaming quality. In some existing foaming machines, the screw speeds of the heating section and the plasticizing section are kept consistent, which is not conducive to the foaming processing quality of the raw materials. In addition, the foam raw materials are light in weight, and the raw materials are prone to blockage or slow feeding during the feeding process. Discontinuous feeding will cause the product to be incompletely molded or have defects.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original foam foaming machine. Summary of the invention

[0007] The purpose of the present invention is to provide a high-efficiency foam foaming machine and foaming process to solve the problem raised in the above background technology that the screw speeds of the heating section and the plasticizing section in some existing foaming machines are kept consistent, which is not conducive to the foaming processing quality of raw materials.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency foam foaming machine and foaming process, including an equipment frame and a heating section installed on the equipment frame for heating the raw material to the temperature required for foaming, a plasticizing section for melting the raw material and extruding the raw material into shape is also installed on the equipment frame, a die head is arranged at the extrusion port of the plasticizing section, a feed tank is connected through the feed port of the heating section, and a combined screw for variable speed transmission of materials is arranged inside the heating section and the plasticizing section; the combined screw includes a feeding screw rotatably arranged inside the heating section, a rotating rod is rotatably connected inside the feeding screw, a foaming screw is fixedly connected to the rotating rod, and the foaming screw is rotatably connected inside the plasticizing section; a power mechanism for driving the feeding screw and the foaming screw to rotate at a variable speed is arranged on the equipment frame.

[0009] Preferably, the power mechanism includes a support frame fixedly mounted on the upper end surface of the equipment stand, the feed screw and the rotating rod are both rotatably connected to the support frame, and the rotating rod is connected to the output end of the power motor, and the power motor is fixedly mounted on the equipment stand.

[0010] Preferably, a sun gear is fixedly mounted on the outside of the rotating rod, and a plurality of planetary gears are meshedly connected to the outside of the sun gear along the circumferential direction, and the plurality of planetary gears are meshedly connected to the outside of an inner gear ring, and the inner gear ring is fixedly mounted on the support frame; the plurality of planetary gears are rotatably connected to a planetary carrier, and the planetary carrier is fixedly mounted on the outside of the feeding screw; the diameter of the planetary gear is greater than the diameter of the sun gear.

[0011] Preferably, the upper port of the feed tank is connected through a hopper for auxiliary feeding, and a combing mechanism for clearing the raw materials and preventing feed blockage is provided inside the feed tank.

[0012] Preferably, the combing mechanism includes a guide seat fixed inside the feed tank, and a combing rod is slidably connected in the guide seat; a guide slip ring is fixed outside the feed tank, and a lifting frame is slidably connected through the guide slip ring, and the lifting frame is fixedly connected to the combing rod.

[0013] Preferably, the support frame is rotatably connected to a driven gear, the driven gear is coaxially connected to a power rotating rod, the power rotating rod is eccentrically rotatably connected to a transmission push rod, and the other end of the transmission push rod is rotatably connected to the lifting frame.

[0014] Preferably, the driven gear is meshingly connected with a driving gear, and the driving gear is fixedly sleeved on the outside of the feeding screw.

[0015] Preferably, two groups of guide seats are arranged inside the feed tank, and a fixed ring is fixedly installed on the upper end surface of the lower guide seat, and a lower rotating rod is rotatably connected to the fixed ring; a movable ring is provided on the outer fixed sleeve of the combing rod, and an upper rotating rod is rotatably connected to the outer side of the movable ring.

[0016] Preferably, the upper rotating rod and the lower rotating rod are both provided with a plurality of equal angles about the circumference of the axis of the combing rod, and pusher blocks are rotatably connected to the upper and lower corresponding upper rotating rods and lower rotating rods.

[0017] A high-efficiency foam foaming machine and a foaming process are also disclosed. The specific process steps are as follows:

[0018] S1. Unblock the feed. The raw materials are introduced into the feed tank. The raw materials are unblocked while being fed to ensure that the raw materials can quickly and smoothly enter the heating section.

[0019] S2, slow heating. After the raw materials enter the heating section, the feeding screw rotates slowly to control the raw materials to move toward the plasticizing section. The feeding screw moves slowly, which can keep the raw materials fully heated to a molten state.

[0020] S3, rapid plasticization, after the molten raw materials enter the plasticizing section, the foaming screw rotates rapidly. During the foaming process, butane gas is pumped into the plasticizing section in liquid form by a high-pressure pump and mixed with the molten raw materials to form a foam.

[0021] S4, traction molding, the foam discharged from the die head is quickly discharged and formed under the guiding pulling force of the traction roller and the winding equipment.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-efficiency foam foaming machine is provided with a combined screw, which includes a feeding screw, a rotating rod and a foaming screw, and can control the feeding screw to rotate slowly in the heating section, and control the foaming screw to rotate faster in the plasticizing section, thereby improving the foaming processing quality.

[0023] Furthermore, a power mechanism for driving the feeding screw and the foaming screw to rotate at variable speed is provided on the equipment stand. The rotation of the power rod is directly controlled by the power motor. The power rod drives the foaming screw to rotate rapidly in the plasticizing section. The power rod is driven by the external sun gear, planetary gear, inner ring gear and planetary carrier to control the deceleration of the feeding screw, thereby reducing the rotation speed of the feeding screw in the heating section, keeping the raw materials fully heated and melted in the heating section, and improving the overall foaming processing quality.

[0024] Furthermore, a combing mechanism is provided inside the feed tank to dredge the raw materials and prevent feed blockage. The raw materials are introduced into the feed tank, and the combing rod is controlled to move back and forth up and down in the guide seat. The combing rod moves back and forth along the axial direction of the feed tank to dredge the raw material feed and maintain the speed and continuity of the raw material feeding.

[0025] When the foaming screw rotates, the driving gear and the driven gear drive the power rotating rod to rotate. Under the transmission action of the transmission push rod, the lifting frame can be controlled to move back and forth up and down. The lifting frame is fixedly connected to the combing rod, thereby controlling the combing rod to move back and forth synchronously up and down to dredge the raw materials.

[0026] When the combing rod reciprocates up and down, it drives the movable ring to move synchronously. The upper rotating rod and the lower rotating rod connected between the movable ring and the fixed ring rotate accordingly. The upper rotating rod and the lower rotating rod drive the pushing block to move and expand. In the process of the combing rod moving downward, the upper rotating rod, the lower rotating rod and the pushing block expand toward the inner wall of the feed tank, thereby pushing part of the raw materials downward, accelerating the downward movement of the raw materials for feeding, and further maintaining the continuity of the raw material feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the heating section and the plasticizing section of the present invention.

[0028] Figure 2 It is a schematic cross-sectional view of the heating section and the plasticizing section of the present invention.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the foaming screw of the present invention.

[0030] Figure 4 It is a schematic cross-sectional view of the feeding screw of the present invention.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the power motor of the present invention.

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the planetary gear of the present invention.

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the feed tank of the present invention.

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the combing rod of the present invention.

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the transmission push rod of the present invention.

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention.

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of the upper rotating rod of the present invention.

[0038] Fig.12 It is a schematic diagram of the three-dimensional structure of the pusher block of the present invention.

[0039] In the figure: 1. Equipment stand; 2. Heating section; 3. Plasticizing section; 4. Die head; 5. Feed tank; 6. Feed screw; 7. Rotating rod; 8. Foaming screw; 9. Support frame; 10. Power motor; 11. Sun gear; 12. Planetary gear; 13. Internal gear ring; 14. Planetary carrier; 15. Hopper; 16. Guide seat; 17. Combing rod; 18. Guide slip ring; 19. Lifting frame; 20. Driving gear; 21. Driven gear; 22. Power rotating rod; 23. Transmission push rod; 24. Fixed collar; 25. Lower rotating rod; 26. Moving collar; 27. Upper rotating rod; 28. Pushing block. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1: Please refer to Figure 1-Figure 12 The present invention provides the following technical solutions: a high-efficiency foaming machine and foaming process, including an equipment stand 1 and a heating section 2 installed on the equipment stand 1 for heating the raw material to the temperature required for foaming, a plasticizing section 3 for melting the raw material and extruding the raw material into a shape is also installed on the equipment stand 1, a die head 4 is arranged at the extrusion port of the plasticizing section 3, a feed tank 5 is connected through the feed port of the heating section 2, and a combined screw for variable speed transmission of materials is arranged inside the heating section 2 and the plasticizing section 3; the combined screw includes a feeding screw 6 rotatably arranged inside the heating section 2, a rotating rod 7 is rotatably connected inside the feeding screw 6, a foaming screw 8 is fixedly connected to the rotating rod 7, and the foaming screw 8 is rotatably connected inside the plasticizing section 3; a power mechanism for driving the feeding screw 6 and the foaming screw 8 to rotate at a variable speed is arranged on the equipment stand 1.

[0042] The power mechanism includes a support frame 9 fixedly mounted on the upper end surface of the equipment stand 1, the feeding screw 6 and the rotating rod 7 are both rotatably connected to the support frame 9, and the rotating rod 7 is connected to the output end of the power motor 10, and the power motor 10 is fixedly mounted on the equipment stand 1.

[0043] A sun gear 11 is fixedly mounted on the outside of the rotating rod 7, and a plurality of planetary gears 12 are meshedly connected to the outside of the sun gear 11 along the circumferential direction. The plurality of planetary gears 12 are meshedly connected to the outside of an inner gear ring 13, and the inner gear ring 13 is fixedly mounted on the support frame 9; the plurality of planetary gears 12 are rotatably connected to a planet carrier 14, and the planet carrier 14 is fixedly mounted on the outside of the feeding screw 6; the diameter of the planetary gear 12 is greater than the diameter of the sun gear 11.

[0044] During processing, the raw materials are introduced into the feed tank 5, and the raw materials in the feed tank 5 enter the heating section 2, the plasticizing section 3 and the die head 4 in turn. The feeding screw 6 in the heating section 2 rotates to gradually heat up the raw materials and melt them into a molten state. After the molten material enters the plasticizing section 3, the foaming screw 8 rotates to fully mix the molten material with the introduced butane gas to form a foam body, which is finally extruded through the die head 4 to form foam.

[0045] Since the requirements for the screw speed of the heating section 2 and the plasticizing section 3 are different, the running power motor 10 can directly drive the rotating rod 7 to rotate, and the rotating rod 7 drives the foaming screw 8 to rotate rapidly in the corresponding plasticizing section 3 to promote uniform mixing and plasticization of the melt, while avoiding excessive shearing that causes unstable pore structure. The rotating rod 7 drives the external sun gear 11 to rotate synchronously, and the sun gear 11, the planetary gear 12 and the inner gear ring 13 are meshed and connected. Under the meshing transmission, the planetary gear 12 is controlled to rotate along the circumferential direction of the inner gear ring 13. Multiple planetary gears 12 drive the planetary carrier 14 to rotate on its own. The planetary carrier 14 is fixed on the outside of the feeding screw 6 to drive it to rotate synchronously. Since the diameter of the planetary gear 12 is larger than the diameter of the sun gear 11, the meshing transmission ratio is reduced, so that the rotation speed of the feeding screw 6 is less than the rotation speed of the rotating rod 7, and the feeding screw 6 is kept rotating at a low speed in the corresponding heating section 2, so that the raw materials can be fully heated and melted, thereby improving the overall material foaming processing quality.

[0046] Embodiment 2: Based on Embodiment 1, a combing mechanism is also disclosed, and its specific structure is as follows: the upper end of the feed tank 5 is connected through a hopper 15 for auxiliary feeding, and a combing mechanism for dredging raw materials to prevent feed blockage is arranged inside the feed tank 5. The combing mechanism includes a guide seat 16 fixed inside the feed tank 5, and a combing rod 17 is slidably connected in the guide seat 16; a guide slip ring 18 is fixed outside the feed tank 5, and a lifting frame 19 is slidably connected in the guide slip ring 18, and the lifting frame 19 is fixedly connected to the combing rod 17.

[0047] A driven gear 21 is rotatably connected to the support frame 9 , a power rotating rod 22 is coaxially connected to the driven gear 21 , a transmission push rod 23 is eccentrically rotatably connected to the power rotating rod 22 , and the other end of the transmission push rod 23 is rotatably connected to the lifting frame 19 .

[0048] The driven gear 21 is meshedly connected with the driving gear 20 , and the driving gear 20 is fixedly sleeved on the outside of the feeding screw 6 .

[0049] Two groups of guide seats 16 are arranged inside the feed tank 5. A fixed ring 24 is fixedly installed on the upper end surface of the lower guide seat 16, and a lower rotating rod 25 is rotatably connected to the fixed ring 24; a movable ring 26 is fixedly sleeved on the outside of the combing rod 17, and an upper rotating rod 27 is rotatably connected to the outside of the movable ring 26.

[0050] A plurality of upper rotating rods 27 and lower rotating rods 25 are arranged at equal angles about the circumference of the axis of the combing rod 17 , and a pushing block 28 is rotatably connected to the upper rotating rods 27 and lower rotating rods 25 corresponding to each other.

[0051] The raw materials are introduced into the feed tank 5 through the hopper 15. The raw materials themselves are relatively light. During processing, the rotation of the feeding screw 6 can drive the external driving gear 20 to rotate synchronously. The driving gear 20 is meshed and connected with the driven gear 21. Under the meshing transmission, the driven gear 21 and the power rotating rod 22 can be controlled to rotate. The two ends of the transmission push rod 23 connected between the power rotating rod 22 and the lifting frame 19 rotate accordingly. The rotation of the transmission push rod 23 can control the lifting frame 19 connected to the guide slip ring 18 to move back and forth up and down. The lifting frame 19 that moves back and forth up and down drives the combing rod 17 to move back and forth synchronously. In the process of moving up and down, the combing rod 17 can accelerate the raw materials from the feed tank 5 into the heating section 2 to maintain the continuity of raw material feeding.

[0052] During the reciprocating movement of the combing rod 17, the movable sleeve 26 fixed on its outside is driven to move synchronously. At this time, the upper rotating rod 27 and the lower rotating rod 25 connected between the movable sleeve 26 and the fixed sleeve 24 rotate accordingly. The rotation of the upper rotating rod 27 and the lower rotating rod 25 can push the pushing block 28 to move toward the inner wall of the feed tank 5, so that in the process of the combing rod 17 moving downward, part of the raw materials can be pressed down and transmitted by rotating the unfolded upper rotating rod 27, the lower rotating rod 25 and the pushing block 28, thereby further accelerating the raw material feeding transmission, maintaining the continuity of the raw material feeding, and improving the material foaming processing quality.

[0053] A high-efficiency foam foaming machine and a foaming process are also disclosed. The specific process steps are as follows:

[0054] S1, unblocking the feed, the raw materials are introduced into the feed tank 5, and the raw materials are unblocked while being fed, so as to ensure that the raw materials can enter the interior of the heating section 2 quickly and smoothly.

[0055] S2, slow heating. After the raw materials enter the heating section 2, the feeding screw 6 rotates slowly to control the raw materials to move toward the plasticizing section 3. The feeding screw 6 moves slowly, which can keep the raw materials fully heated to a molten state.

[0056] S3, rapid plasticization, after the molten raw materials enter the plasticizing section 3, the foaming screw 8 rotates rapidly. During the foaming process, butane gas is pumped into the plasticizing section 3 in liquid form by a high-pressure pump and mixed with the molten raw materials to form a foam.

[0057] S4, traction molding, the foam discharged from the die head 4 is quickly discharged and molded under the guiding pulling force of the traction roller and the winding device.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency foaming machine, comprising an equipment stand (1) and a heating section (2) installed on the equipment stand (1) for heating a raw material to a temperature required for foaming, a plasticizing section (3) for melting the raw material and extruding the raw material into a shape is also installed on the equipment stand (1), and a die head (4) is arranged at the extrusion port of the plasticizing section (3), characterized in that: The heating section (2) has a feed tank (5) connected to the feed inlet, and a combined screw for transmitting the material at a variable speed is arranged inside the heating section (2) and the plasticizing section (3); The combined screw comprises a feeding screw (6) rotatably arranged inside the heating section (2), a rotating rod (7) passing through the feeding screw (6) and rotatably connected thereto, a foaming screw (8) fixedly connected to the rotating rod (7), and the foaming screw (8) rotatably connected to the inside of the plasticizing section (3); The equipment stand (1) is provided with a power mechanism for driving the feeding screw (6) and the foaming screw (8) to rotate at variable speeds.

2. A high-efficiency foaming machine according to claim 1, characterized in that: The power mechanism comprises a support frame (9) fixedly mounted on the upper end surface of the equipment stand (1), the feeding screw (6) and the rotating rod (7) are both rotatably connected to the support frame (9), and the rotating rod (7) is connected to the output end of the power motor (10), and the power motor (10) is fixedly mounted on the equipment stand (1).

3. A high-efficiency foaming machine according to claim 2, characterized in that: The rotating rod (7) is sleeved with a sun gear (11) fixedly disposed on the outside, the sun gear (11) is meshedly connected to the outside with a plurality of planetary gears (12) along the circumferential direction, the plurality of planetary gears (12) are meshedly connected to the outside with an inner gear ring (13), and the inner gear ring (13) is fixedly mounted on the support frame (9); The plurality of planetary wheels (12) are all rotatably connected to a planetary frame (14), and the planetary frame (14) is fixedly sleeved on the outside of the feeding screw (6); The diameter of the planetary gear (12) is greater than the diameter of the sun gear (11).

4. A high-efficiency foaming machine according to claim 2, characterized in that: The upper end of the feed tank (5) is connected through a hopper (15) for auxiliary feeding, and a combing mechanism for clearing the raw materials and preventing feed blockage is arranged inside the feed tank (5).

5. A high-efficiency foaming machine according to claim 4, characterized in that: The combing mechanism comprises a guide seat (16) fixed inside the feed tank (5), and a combing rod (17) is slidably connected to the guide seat (16); A guide slip ring (18) is fixed on the outside of the feed tank (5), a lifting frame (19) is slidably connected through the guide slip ring (18), and the lifting frame (19) is fixedly connected to the combing rod (17).

6. A high-efficiency foaming machine according to claim 5, characterized in that: The support frame (9) is rotatably connected to a driven gear (21), the driven gear (21) is coaxially connected to a power rotating rod (22), the power rotating rod (22) is eccentrically rotatably connected to a transmission push rod (23), and the other end of the transmission push rod (23) is rotatably connected to the lifting frame (19).

7. A high-efficiency foaming machine according to claim 6, characterized in that: The driven gear (21) is meshedly connected with a driving gear (20), and the driving gear (20) is fixedly sleeved on the outside of the feeding screw (6).

8. The high-efficiency foaming machine according to claim 5, characterized in that: Two groups of guide seats (16) are arranged inside the feed tank (5), and a fixing collar (24) is fixedly installed on the upper end surface of the lower guide seat (16), and a lower rotating rod (25) is rotatably connected to the fixing collar (24); The combing rod (17) is fixedly sleeved with a movable sleeve ring (26) on the outside, and the movable sleeve ring (26) is rotatably connected with an upper rotating rod (27) on the outside.

9. A high-efficiency foaming machine according to claim 8, characterized in that: The upper rotating rod (27) and the lower rotating rod (25) are both provided with a plurality of equal angles about the circumference of the axis of the combing rod (17), and the upper and lower corresponding upper rotating rods (27) and lower rotating rods (25) are rotatably connected with a pushing block (28).

10. A high-efficiency foaming machine according to any one of claims 1 to 9, characterized in that: The foaming process is also disclosed, and the specific process steps are as follows: S1, unblocking the feed, the raw materials are introduced into the feed tank (5), and the raw materials are unblocked while being fed, so as to ensure that the raw materials can quickly and smoothly enter the interior of the heating section (2); S2, slow heating, after the raw materials enter the heating section (2), the feeding screw (6) rotates slowly to control the raw materials to move toward the plasticizing section (3), and the feeding screw (6) moves slowly to keep the raw materials fully heated to a molten state; S3, rapid plasticization, after the molten raw materials enter the plasticizing section (3), the foaming screw (8) rotates rapidly, and during the foaming process, butane gas is pumped into the plasticizing section (3) in liquid form by a high-pressure pump and mixed with the molten raw materials to form a foam body; S4, traction molding, the foam discharged from the die head (4) is quickly discharged and molded under the guiding pulling force of the traction roller and the winding device.

Images