Ultrathin pearl wool extrusion molding device

Abstract

The utility model relates to the field of extrusion device design, and discloses an ultrathin pearl wool extrusion molding device which comprises a mixed material extrusion cylinder, a pre-cooling extrusion cylinder and a cold air blow molding assembly, the pre-cooling extrusion cylinder is arranged at the output end of the mixed material extrusion cylinder, and the cold air blow molding assembly is arranged at the output end of the pre-cooling extrusion cylinder; during working, the mixed material extrusion barrel extrudes a pearl wool mixture into the pre-cooling extrusion barrel, and in the process that the pre-cooling extrusion barrel continuously extrudes the pearl wool mixture, the equipment length of the pre-cooling extrusion barrel and the extrusion process can reduce part of the temperature of the pearl wool mixture in advance; and after being extruded out of the pre-cooling extrusion barrel, a pearl wool mixture is pulled to the outer end of the air barrel, and the annular pearl wool structure is blown into an ultrathin film shape and continuously output. The device is high in practicability, the production mode of pearl wool can be adjusted, the production adjustability of ultra-thin pearl wool is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion device design technology, and more specifically, to an ultra-thin pearl cotton extrusion molding device. Background Technology

[0002] Ultra-thin EPE foam is a low-density, highly flexible polyethylene foam material characterized by its thinness, light weight, and good cushioning performance, making it widely used in packaging, protection, and sound insulation. Current extruded EPE foam equipment has relatively unsatisfactory structural properties and primarily relies on external convection cooling components or ambient airflow for cooling, resulting in low cooling efficiency and poor performance. Furthermore, the extruded EPE foam comes into contact with the flattening components in the initial stage, potentially causing scratches and wear on the structure, thus affecting the production efficiency of ultra-thin EPE foam. Therefore, an ultra-thin EPE foam extrusion molding device is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address at least one of the aforementioned problems, this invention provides an ultra-thin EPE foam extrusion molding device, suitable for producing EPE foam of different thicknesses and widths. This device can reduce the thickness of the EPE foam, prevent contact between the EPE foam and the air-cooling device, avoid product wear, and improve the practicality of the extrusion device.

[0005] (II) Technical Solution

[0006] To solve the aforementioned technical problem, this utility model provides an ultra-thin EPE foam extrusion molding device, including a mixing extrusion cylinder, a pre-cooling extrusion cylinder, and a cold air blow molding assembly. The pre-cooling extrusion cylinder is located at the output end of the mixing extrusion cylinder, and the cold air blow molding assembly is located at the output end of the pre-cooling extrusion cylinder. The cold air blow molding assembly includes a duct and an air outlet frame. The duct is a hollow cylinder, and the air outlet frame is located at the outer end of the duct. The surface of the air outlet frame is provided with several air grooves. During operation, the mixing extrusion cylinder extrudes the EPE foam mixture into the pre-cooling extrusion cylinder. During the continuous extrusion of the EPE foam mixture, the length of the pre-cooling extrusion cylinder and the extrusion process will pre-cool a portion of the temperature of the EPE foam mixture. After being extruded from the pre-cooling extrusion cylinder, the EPE foam mixture is drawn to the outer end of the duct, blowing the annular EPE foam structure extruded by the pre-cooling extrusion cylinder into an ultra-thin film and continuously outputting it.

[0007] Furthermore, the extrusion end of the air duct near the pre-cooling extrusion cylinder is designated as the air outlet end, and the air outlet end is uniformly provided with a plurality of air outlet holes of the same diameter. The other end of the air duct is designated as a connecting frame, and the connecting frame is provided with an air inlet pipe. The other end of the air inlet pipe is provided with an air supply device.

[0008] Furthermore, a first arc-shaped support frame is provided at the outer end of the air inlet pipe.

[0009] Furthermore, the wall of the air duct is provided with several notches evenly, and the air outlet frame is welded to the wall of the air duct, avoiding the notches.

[0010] Furthermore, a cutting frame is provided at the bottom of the end of the air duct away from the precooling extrusion cylinder, and the cutting frame is provided with a cutting blade.

[0011] Furthermore, an annular limiting frame is provided on the outer side of the air duct near the extrusion end of the precooling extrusion cylinder, and a first lifting frame is provided at the bottom of the annular limiting frame.

[0012] Furthermore, the precooling extrusion cylinder includes a first fixed end, a precooling conduit is provided on the first fixed end, a second fixed end is provided at the output end of the precooling conduit, an installation end is provided in the inner cavity of the second fixed end, an output die lip is provided on the installation end, and the output die lip is detachably connected to the installation end.

[0013] Furthermore, the inner cavity of the mixing extrusion cylinder is provided with a cylindrical mixing chamber, and the input end of the mixing extrusion cylinder is provided with a feed hopper, the bottom of which is connected to the cylindrical mixing chamber.

[0014] Furthermore, the cylindrical mixing chamber is provided with an extrusion motor at the outer end of the feed hopper, and an extrusion assembly is provided on the output shaft of the extrusion motor. The extrusion assembly includes a first rotating rod, a second rotating rod, and a third rotating rod. The first rotating rod is provided with a mixing paddle, the second rotating rod is provided with a homogenizing paddle, and the third rotating rod is a frustum-shaped cylinder that gradually expands towards the extrusion end. An extrusion paddle is provided on the third rotating rod.

[0015] Furthermore, the extrusion assembly is provided with a fourth rotating rod in the inner cavity of the precooling extrusion cylinder, and a uniform speed output paddle is provided on the fourth rotating rod.

[0016] (III) Beneficial Effects

[0017] This invention provides an ultra-thin pearl cotton extrusion molding device. The product output at the extrusion end can be adjusted. A cold air blow molding component is installed at the extrusion end of the device. During the traction of the annular pearl cotton, a uniform airflow can blow mold the annular pearl cotton. The cold air blow molding component has numerous and evenly distributed air channels on the surface of the air duct, which can provide a certain degree of air cooling to the traction annular pearl cotton. During this process, adjusting the airflow allows the air output from the air channels to blow mold the annular pearl cotton into an ultra-thin, lightweight film-like pearl cotton, thus achieving production and molding adjustment of ultra-thin pearl cotton. This device is highly practical, allowing for adjustments to the pearl cotton production method, improving the adjustability of ultra-thin pearl cotton production, and enhancing the overall practicality of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the extrusion molding apparatus according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the cold air blow molding component of the extrusion molding apparatus according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the cutting frame of the extrusion molding apparatus according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the pre-cooling extrusion cylinder of the extrusion molding apparatus according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the extrusion assembly of the extrusion molding apparatus according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1 is the mixing extrusion cylinder, 2 is the pre-cooling extrusion cylinder, 21 is the first fixed end, 22 is the pre-cooling conduit, 23 is the second fixed end, 24 is the output die lip, 3 is the cold air blow molding assembly, 31 is the connecting frame, 32 is the air duct, 33 is the air outlet frame, 34 is the cutting frame, 35 is the cutting blade, 36 is the air inlet pipe, 37 is the air supply device, 4 is the annular limiting frame, 5 is the first arc-shaped support frame, 6 is the feeding hopper, 7 is the extrusion motor, 71 is the first connector, 72 is the first rotating rod, 73 is the mixing paddle, 74 is the second rotating rod, 75 is the homogenizing paddle, 76 is the third rotating rod, 77 is the extrusion paddle, 78 is the second connector, 79 is the fourth rotating rod, 710 is the uniform speed output paddle, and 711 is the third connector. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0027] See Figures 1 to 5This utility model provides an ultra-thin pearl cotton extrusion molding device, including a mixing extrusion cylinder 1, a pre-cooling extrusion cylinder 2, and a cold air blow molding assembly 3. The pre-cooling extrusion cylinder 2 is located at the output end of the mixing extrusion cylinder 1, and the cold air blow molding assembly 3 is located at the output end of the pre-cooling extrusion cylinder 2. The cold air blow molding assembly 3 includes a blower 32 and an air outlet frame 33. The blower 32 is a hollow cylinder, and the air outlet frame 33 is located at the outer end of the blower 32. The surface of the air outlet frame 33 is provided with several air grooves. An air supply device 37 continuously blows air into the blower 32, and the air continuously blows towards the air outlet frame 33 and the right end of the blower 32 near the pre-cooling extrusion cylinder 2. By adjusting the air force, the annular pearl cotton extruded from the pre-cooling extrusion cylinder 2 can be blow molded into a pearl cotton structure with a gradually increasing inner diameter. During operation... The mixing extrusion cylinder 1 extrudes the pearl cotton mixture into the pre-cooling extrusion cylinder 2. During the continuous extrusion of the pearl cotton mixture, the length of the pre-cooling extrusion cylinder 2 and the extrusion process will pre-cool part of the temperature of the pearl cotton mixture. After the pearl cotton mixture is extruded from the pre-cooling extrusion cylinder 2, it is pulled to the outer end of the air duct 32. The annular pearl cotton structure extruded by the pre-cooling extrusion cylinder 2 is blown into an ultra-thin film and continuously output. The ultra-thin pearl cotton forms a semi-closed air collection shape at the outer end of the cold air blow molding component 3. That is, the air force is continuously blown out from the air duct 32 and the air outlet frame 33, which can blow the pearl cotton film covering the outer end of the air outlet frame 33 into an open film cylinder, realize the blow molding treatment of ultra-thin pearl cotton, and obtain an ultra-thin pearl cotton layer that meets the production requirements.

[0028] See Figure 2 The air duct 32 is positioned near the extrusion end of the pre-cooling extrusion cylinder 2 as the air outlet end. Several air outlet holes of the same diameter are evenly provided on the air outlet end. The other end of the air duct 32 is provided as a connecting frame 31. An air inlet pipe 36 is provided on the connecting frame 31. An air supply device 37 is provided at the other end of the air inlet pipe 36. After the air enters the air duct 32, it continuously provides airflow to all air outlet holes and notches. The air outlet holes directly blow-mold the annular pearl cotton extruded by the output die lip 24, which can quickly and evenly increase the inner diameter of the annular pearl cotton. The annular pearl cotton is pulled to the outer end of the air outlet frame 33 and continuously blow-molded into the pearl cotton structure through the notch, which can complete the shaping process of the pearl cotton. The air inlet pipe 36 is fixed to the left end face of the air duct 32 by the connecting frame 31. The air supply device 37 draws gas from the production environment and filters it before continuously blowing the gas into the air duct 32 through the air inlet pipe 36.

[0029] The outer end of the air inlet pipe 36 is provided with a first arc-shaped support frame 5. The pearl cotton film that has been blown and cut is pulled onto the first arc-shaped support frame 5. One or more arc-shaped support frames can be added to the left side of the first arc-shaped support frame 5 according to production needs. The first arc-shaped support frame 5 is used to expand and cool the pearl cotton film. A winding roller is set at the rear end of the last arc-shaped support frame to wind up and store the pearl cotton at room temperature after processing.

[0030] See Figure 3 The wall of the ventilation duct 32 is evenly provided with several notches. The air outlet frame 33 is welded to the wall of the ventilation duct 32, avoiding the notches. The air entering the ventilation duct 32 and the air outlet frame 33 are blown out from the notches. The air outlet frame 33 is designed as an arc-shaped cover welded at each splicing end after splicing multiple semi-circular arc-shaped extension structures. (See reference) Figure 2 Each group of semi-circular arc surfaces and arc covers is equipped with air channels, which can effectively increase the air outlet surface area of ​​the air duct 32, balance the air output, effectively ensure the balance of the blowing force on the pearl cotton film, and effectively bring out the extensibility of the pearl cotton film.

[0031] A cutting frame 34 is provided at the bottom of the end of the air duct 32 away from the pre-cooling extrusion cylinder 2. The cutting frame 34 is provided with a cutting blade 35. When the pearl cotton is extruded, it is in a ring shape. After blow molding, it forms an open film cylinder that is suspended at the outer end of the air duct 32. The pearl cotton film is pulled to the position where it contacts the cutting blade 35. After being cut by the cutting blade 35, it becomes a sheet-like pearl cotton film. With the help of multiple sets of arc-shaped support frames, it can be adjusted into a planar pearl cotton film, which is convenient for winding.

[0032] The wind force can be set according to the thickness and width of the EPE film produced, and the extruded ring-shaped EPE is continuously blow-molded to obtain EPE structures of different thicknesses. EPE of different thicknesses form open film tubes of different diameters at the outer end of the air duct 32. The bottom of the cutting frame 34 is equipped with a second lifting frame, which can adjust the height of the cutting blade 35 to adapt to the cutting of open film tubes of different thicknesses.

[0033] The bottom of the connecting frame 31 is equipped with a third lifting frame, which can adjust the specific setting height of the air duct 32 to meet different production needs.

[0034] See Figure 4 An annular limiting frame 4 is provided on the outer side of the extrusion end of the air duct 32 near the pre-cooling extrusion cylinder 2. A first lifting frame is provided at the bottom of the annular limiting frame 4. The annular limiting frame 4 is set in conjunction with the first lifting frame to help adjust the specific setting and alignment of the air duct 32, and to help observe the effect of the air output on the open membrane cylinder, so as to facilitate the adjustment of the air output size.

[0035] The precooling extrusion cylinder 2 includes a first fixed end 21, a precooling conduit 22 on the first fixed end 21, a second fixed end 23 at the output end of the precooling conduit 22, an installation end on the inner cavity of the second fixed end 23, and an output die lip 24 on the installation end. The output die lip 24 is detachably connected to the installation end. The precooling extrusion cylinder 2 is connected to the mixing extrusion cylinder 1 by setting the first fixed end 21. The left end of the first fixed end 21 is fixed to the installation of the precooling conduit 22. The inner cavity of the precooling conduit 22 is provided with a precooling guide cavity. The pearl cotton mixture discharged from the mixing extrusion cylinder 1 flows in the precooling guide cavity, which can effectively lengthen the extrusion path of the mixture, and to a certain extent complete the homogenization and cooling treatment of the mixture, effectively reduce the working pressure of the air-cooling component, and accelerate the forming speed of the pearl cotton film. The output end of the precooling conduit 22 is fixed to the installation of the second fixed end 23. The inner cavity of the second fixed end 23 limits the setting of the installation end. The mixture is extruded from the gap between the installation end and the output die lip 24 to form annular pearl cotton.

[0036] The output die lip 24 is detachably connected to the mounting end, allowing for independent disassembly and adjustment of the output die lip 24. This makes the solution suitable for the production of pearl cotton films of different thicknesses, and it also allows for the replacement of worn output die lip 24, ensuring the output effect of the ring-shaped pearl cotton.

[0037] See Figure 4 The mixing extrusion cylinder 1 has a cylindrical mixing chamber inside. The input end of the mixing extrusion cylinder 1 is provided with a feed hopper 6. The bottom of the feed hopper 6 is connected to the cylindrical mixing chamber. The feed hopper 6 feeds the mixture into the cylindrical mixing chamber. After the mixture is mixed and homogenized by the extrusion assembly, it is extruded from the cylindrical mixing chamber.

[0038] See Figure 5 An extrusion motor 7 is provided at the outer end of the cylindrical mixing chamber 6. An extrusion assembly is provided on the output shaft of the extrusion motor 7. The extrusion assembly includes a first rotating rod 72, a second rotating rod 74, and a third rotating rod 76. A mixing paddle 73 is provided on the first rotating rod 72, a homogenizing paddle 75 is provided on the second rotating rod 74, and the third rotating rod 76 is a frustum-shaped cylinder that gradually expands towards the extrusion end. An extrusion paddle 77 is provided on the third rotating rod 76. The rotating shaft of the extrusion motor 7 drives the first rotating rod 72, the second rotating rod 74, and the third rotating rod 76 to rotate at the same frequency. After the mixture enters the cylindrical mixing chamber, it is first stirred and mixed by the mixing paddle 73, and then the mixture is squeezed by the homogenizing paddle 75 to complete the homogenization treatment of the mixture. Finally, the mixture is squeezed by the gradually changing inner cavity between the extrusion paddle 77 and the third rotating rod 76. The rotation frequency of the third rotating rod 76 remains unchanged, and the space between the extrusion paddle 77 and the third rotating rod 76 gradually decreases, which can increase the extrusion pressure on the mixture and ensure extrusion efficiency.

[0039] The extrusion assembly has a fourth rotating rod 79 in the inner cavity of the pre-cooling extrusion cylinder 2. The fourth rotating rod 79 is equipped with a uniform speed output paddle 710. The fourth rotating rod 79 rotates in the same frequency as the third rotating rod 76, driving the uniform speed output paddle 710 to continuously extrude the mixture in the pre-cooling guide cavity.

[0040] The extrusion assembly is connected to the shaft of the extrusion motor 7 by a first connector 71. The extrusion assembly is mounted in the equipment mounting frame through the first connector 71. The extrusion assembly is provided with a second connector 78 at the left end of the third rotating rod 76. The second connector 78 is installed in the first fixed end 21. The left end of the fourth rotating rod 79 is provided with a third connector 711. The third connector 711 is installed in the mounting end. This enables the extrusion motor 7 to synchronously control each rotating rod in the mixing extrusion cylinder 1 and the pre-cooling extrusion cylinder 2. Multiple sets of connectors are set to complete the installation and rotation limit support of multiple sets of rotating rods, thereby establishing the rotation setting for mixing and extrusion operations.

[0041] This utility model provides an ultra-thin EPE foam extrusion molding device. EPE foam mixture is homogenized in a mixing extrusion cylinder 1. A segmented heating device is installed inside the mixing extrusion cylinder 1 to heat the mixture, allowing it to extrude the fused mixture into a pre-cooling extrusion cylinder 2. The pre-cooling extrusion cylinder 2 has a relatively long and narrow structure, allowing the mixture to lose some heat during transport. The annular EPE foam extruded from the pre-cooling extrusion cylinder 2 is continuously output and pulled, then fitted onto a wind turbine 32. It is then blown by air to form an expanded film tube. This expanded film tube is cut at the bottom left end of the wind turbine 32 to obtain an EPE foam film. After being expanded and cooled by multiple sets of arc-shaped support frames, it can be wound up by a winding roller. In this embodiment, the extrusion device uses air-cooling equipment in conjunction with a cylindrical extrusion method to achieve ultra-thin EPE foam processing, effectively preventing the EPE foam film from contacting the production equipment and causing scratches and wear, thus ensuring the production quality of the EPE foam film. The wind equipment in this embodiment can be adjusted to adapt to the production of EPE foam films of different thicknesses and toughnesses.

[0042] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A device for extruding and molding ultra-thin pearl cotton, characterized in that, The assembly includes a mixing extrusion cylinder (1), a precooling extrusion cylinder (2), and a cold air blow molding assembly (3). The precooling extrusion cylinder (2) is located at the output end of the mixing extrusion cylinder (1), and the cold air blow molding assembly (3) is located at the output end of the precooling extrusion cylinder (2). The cold air blow molding assembly (3) includes a blower duct (32) and an air outlet frame (33). The blower duct (32) is a hollow cylinder, and the air outlet frame (33) is located at the outer end of the blower duct (32). The surface of the air outlet frame (33) is provided with several... Air duct; During operation, the mixing extrusion cylinder (1) squeezes the pearl cotton mixture into the pre-cooling extrusion cylinder (2). During the continuous extrusion of the pearl cotton mixture by the pre-cooling extrusion cylinder (2), the equipment length and extrusion process of the pre-cooling extrusion cylinder (2) will reduce part of the temperature of the pearl cotton mixture in advance. After the pearl cotton mixture is extruded from the pre-cooling extrusion cylinder (2), it is pulled to the outer end of the air duct (32) to blow the annular pearl cotton structure extruded by the pre-cooling extrusion cylinder (2) into an ultra-thin film and continuously output it.

2. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The air duct (32) is located near the extrusion end of the pre-cooling extrusion cylinder (2) and is provided with an air outlet. The air outlet is provided with a number of air outlet holes of the same diameter. The other end of the air duct (32) is provided with a connecting frame (31). The connecting frame (31) is provided with an air inlet pipe (36). The other end of the air inlet pipe (36) is provided with an air supply device (37).

3. The ultra-thin pearl cotton extrusion molding device according to claim 2, characterized in that, The air inlet pipe (36) is provided with a first arc-shaped support frame (5) at its outer end.

4. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The wall of the air duct (32) is provided with several notches evenly, and the air outlet frame (33) is welded to the wall of the air duct (32) in a way that avoids the notches.

5. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The bottom of the air duct (32) away from the pre-cooling extrusion cylinder (2) is provided with a cutting frame (34), and the cutting frame (34) is provided with a cutting blade (35).

6. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The air duct (32) is provided with an annular limiting frame (4) on the outer side of the extrusion end of the precooling extrusion cylinder (2), and the bottom of the annular limiting frame (4) is provided with a first lifting frame.

7. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The precooling extrusion cylinder (2) includes a first fixed end (21), a precooling conduit (22) is provided on the first fixed end (21), a second fixed end (23) is provided at the output end of the precooling conduit (22), an installation end is provided in the inner cavity of the second fixed end (23), an output die lip (24) is provided on the installation end, and the output die lip (24) is detachably connected to the installation end.

8. The ultra-thin pearl cotton extrusion molding device according to claim 1, characterized in that, The mixing extrusion cylinder (1) has a cylindrical mixing chamber inside, and the input end of the mixing extrusion cylinder (1) is provided with a feed hopper (6), the bottom of which is connected to the cylindrical mixing chamber.

9. The ultra-thin pearl cotton extrusion molding device according to claim 8, characterized in that, The cylindrical mixing chamber is provided with an extrusion motor (7) at the outer end of the feed hopper (6). The output shaft of the extrusion motor (7) is provided with an extrusion assembly. The extrusion assembly includes a first rotating rod (72), a second rotating rod (74) and a third rotating rod (76). The first rotating rod (72) is provided with a mixing paddle (73), the second rotating rod (74) is provided with a homogenizing paddle (75), and the third rotating rod (76) is a frustum-shaped cylinder that gradually expands towards the extrusion end. The third rotating rod (76) is provided with an extrusion paddle (77).

10. The ultra-thin pearl cotton extrusion molding device according to claim 9, characterized in that, The extrusion assembly is provided with a fourth rotating rod (79) inside the precooling extrusion cylinder (2), and a uniform speed output paddle (710) is provided on the fourth rotating rod (79).

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