Method for replacing paper tube shaft with hole injection glue shaft and application thereof

Abstract

This invention relates to a method for replacing a paper tube shaft with a perforated glue-injecting shaft and its application. The paper tube shaft is the core shaft of a roll of material. The method involves pulling the paper tube shaft out of the roll of material at a speed of 0.01 m / s to 0.1 m / s for 5 to 10 cm, forming the paper tube shaft pull-out end. Then, one end of the perforated glue-injecting shaft is aligned with the port of the paper tube shaft pull-out end, and adhesive tape is wrapped around the connection point of the port. Finally, the perforated glue-injecting shaft is slowly pushed towards the roll of material to completely remove the paper tube shaft from the core of the roll. This invention's method for replacing paper tubes with a perforated glue-injecting shaft is simple to operate, does not damage the internal material of the roll core, and reduces the working time for replacing paper tubes by 5 to 6 times, greatly improving production efficiency. Simultaneously, it effectively solves the time and human resource waste caused by repeatedly winding organic or inorganic materials to replace paper tubes, and effectively addresses the increased costs caused by supplying large quantities of glue-injecting shafts to organic or inorganic material suppliers.

Description

Technical Field

[0001] This invention relates to the field of functional aerogel preparation technology, specifically to a method for replacing a paper tube shaft with a perforated injection shaft and its application. Background Technology

[0002] Aerogel is a nanoporous solid material with extremely low density, obtained by replacing the liquid in silica gel with gas while retaining its spatial network structure. The main component of aerogel is SiO2, possessing a very large specific surface area of ​​500–800 m² / g, a density of only 0.04–0.1 g / m³, a porosity as high as 90%–99.8%, and a thermal conductivity of 0.01–0.02 W / mK at room temperature; it is currently recognized as the optimal thermal insulation material. The preparation of SiO2 aerogel mainly includes sol-geling, hydrophobic modification, and gel drying. Current sol-geling processes mainly include three types: conveyor belt type, vacuum type, and whole-roll immersion type. Among them, the whole-roll immersion process uses mostly organic or inorganic materials, and the core of the roll is mostly a paper tube. Before sol-geling, the paper tube needs to be replaced with a perforated injection shaft. There are generally several methods: Method 1: Use a rewinding device to rewind the roll material and replace the paper tube shaft with a glue injection shaft. This method will increase labor and time costs. Method 2: Provide the glue injection shaft to the organic or inorganic material supplier in advance and use the glue injection shaft to replace the paper tube shaft in the production of roll material. Due to the influence of transportation and production cycles, this method will occupy a large number of glue injection shafts for turnover, thereby increasing material costs and transportation costs. Summary of the Invention

[0003] To address the problems in existing technologies, this invention employs a novel method of replacing paper tube shafts with perforated glue-injection shafts. This method is simple to operate and can effectively solve the waste of time and human resources caused by repeatedly winding organic or inorganic materials to replace paper tube shafts. It can also effectively solve the cost increase caused by providing a large number of glue-injection shafts to organic or inorganic material suppliers and can effectively meet the needs of new energy aerogel thermal insulation pads.

[0004] Therefore, on the one hand, the purpose of this invention is to provide a method for replacing a paper tube shaft with a perforated glue injection shaft, wherein the paper tube shaft is the core shaft of a roll material, and both the perforated glue injection shaft and the paper tube shaft are cylindrical shafts, wherein the outer diameter of the perforated glue injection shaft is Φ1 and the inner diameter is ψ1, and the outer diameter of the paper tube shaft is Φ2 and the inner diameter is ψ2, and ψ2≤ψ1<Φ1<Φ2;

[0005] The method specifically includes the following steps:

[0006] 1) The roll material with the paper tube shaft is detachably and horizontally fixed on the workbench. The outer packaging of the roll material is removed. The paper tube shaft is pulled out of the roll material at a speed of 0.01m / s to 0.1m / s for a length of 5 to 10cm to form the paper tube shaft pull-out end.

[0007] 2) Align one end of the perforated glue injection shaft with the port of the paper tube shaft pull-out end, keep the perforated glue injection shaft horizontal, and then wrap the connection of the port with tape;

[0008] 3) Slowly push the perforated glue injection axis in the direction of the roll material to completely remove the paper tube shaft from the core of the roll material. The pushing speed is controlled within 0.01m / s to 0.1m / s.

[0009] 4) Disconnect the tape at the connection between the paper tube shaft and the perforated glue injection shaft, and remove the paper tube shaft.

[0010] Furthermore, in the method of the present invention, the inner diameter ψ2 of the paper tube shaft is 50mm to 76.5mm, and the outer diameter Φ2 of the paper tube shaft is 60mm to 87mm.

[0011] Furthermore, in the method of the present invention, the inner diameter ψ1 of the perforated glue-injecting shaft is 50mm to 76.5mm, and the outer diameter Φ1 of the perforated glue-injecting shaft is 52mm to 81mm.

[0012] Furthermore, in the method of the present invention, the length of the paper tube shaft is d1, the length of the perforated glue injection shaft is d2, and the length of the roll material is d3; wherein, 1.5m≤d1≤1.53m, 1.5m≤d2≤1.53m, and d3≤d1≤d2.

[0013] Furthermore, in the method for replacing the paper roll shaft with the perforated glue injection shaft described in this invention, the roll material is detachably fixed in the horizontal slot of the workbench.

[0014] Furthermore, in the method for replacing the paper tube shaft with a perforated glue injection shaft described in this invention, the roll material is a foamed roll material.

[0015] Furthermore, the foamed roll material in the method of the present invention is a foamed roll material prepared from melamine or melamine as raw materials.

[0016] Furthermore, the roll material described in the method of the present invention can also be needle-punched felt roll material or spunlace felt roll material.

[0017] Furthermore, the needle-punched felt rolls and spunlace felt rolls mentioned in the method of the present invention are needle-punched felt rolls and spunlace felt rolls prepared from polyester, pre-oxidized fiber, glass fiber or ceramic fiber as raw materials.

[0018] On the other hand, the present invention also provides an application of the method for replacing the paper tube shaft with the perforated glue injection shaft described above, the method being used in the preparation process of aerogel.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The method of replacing paper tubes with perforated glue-injection shafts used in this invention is simple to operate, does not damage the internal materials of the core and thus avoids material waste, and reduces the working time of replacing paper tubes with perforated glue-injection shafts by 5 to 6 times, greatly improving production efficiency. At the same time, the method of this invention effectively solves the waste of time and human resources caused by repeatedly winding organic or inorganic materials to replace paper tubes, and can effectively solve the cost increase caused by providing a large number of glue-injection shafts to organic or inorganic material suppliers, and can effectively meet the needs of new energy aerogel thermal insulation pads. Detailed Implementation

[0021] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention. Where specific conditions are not specified in the detailed embodiments, conventional conditions or conditions recommended by the manufacturer shall apply.

[0022] Exemplary embodiments will now be described in detail. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. Specific implementation method one:

[0024] The present invention provides a method for replacing a paper tube shaft with a perforated glue injection shaft, wherein the paper tube shaft is the core shaft of the roll material, and both the perforated glue injection shaft and the paper tube shaft are cylindrical shafts. The outer diameter of the perforated glue injection shaft is Φ1 and the inner diameter is ψ1, and the outer diameter of the paper tube shaft is Φ2 and the inner diameter is ψ2, and ψ2≤ψ1<Φ1<Φ2.

[0025] The above method specifically includes the following steps:

[0026] 1) The roll material with paper tube shaft is detachably and horizontally fixed on the workbench. Remove the outer packaging of the roll material and pull the paper tube shaft out of the roll material at a speed of 0.01m / s to 0.1m / s for 5 to 10cm to form the paper tube shaft pull-out end.

[0027] 2) Align one end of the perforated glue-injecting shaft with the port of the paper tube shaft pull-out end, and keep the perforated glue-injecting shaft horizontal, then wrap the connection of the port with tape;

[0028] 3) Slowly push the paper tube shaft out of the roll completely from the core of the roll by pressing the perforated glue injection axis in the direction of the roll material. The pushing speed should be controlled within 0.01m / s to 0.1m / s.

[0029] 4) Disconnect the tape at the connection between the paper tube shaft and the perforated glue injection shaft, and remove the paper tube shaft.

[0030] The inner diameter ψ2 of the paper tube shaft is 50mm to 76.5mm, and the outer diameter Φ2 of the paper tube shaft is 60mm to 87mm.

[0031] The inner diameter ψ1 of the perforated glue-injecting shaft is 50mm to 76.5mm, and the outer diameter Φ1 of the perforated glue-injecting shaft is 52mm to 81mm.

[0032] The length of the paper tube shaft is d1, the length of the perforated glue injection shaft is d2, and the length of the roll material is d3; wherein, 1.5m≤d1≤1.53m, 1.5m≤d2≤1.53m, and d3≤d1≤d2.

[0033] The roll material is detachably fixed in the horizontal slot of the workbench.

[0034] Foamed roll materials are foamed roll materials prepared using melamine or melamine as raw materials.

[0035] The roll material is either needle-punched felt or spunlace felt.

[0036] Needle-punched felt rolls and spunlace felt rolls are made from polyester, pre-oxidized fiber, glass fiber or ceramic fiber as raw materials. Specific Implementation Method Two:

[0038] This invention relates to an application of the method for replacing the paper tube shaft with the perforated glue-injection shaft described above, which is used in the preparation process of aerogel.

[0039] The present invention will be further described in detail below with reference to specific embodiments.

[0040] Example 1:

[0041] The present invention provides a method for replacing a paper tube shaft with a perforated glue injection shaft, wherein the paper tube shaft is the core shaft of the roll material, and both the perforated glue injection shaft and the paper tube shaft are cylindrical shafts. The outer diameter of the perforated glue injection shaft is Φ1 and the inner diameter is ψ1, and the outer diameter of the paper tube shaft is Φ2 and the inner diameter is ψ2, and ψ2≤ψ1<Φ1<Φ2.

[0042] The above method specifically includes the following steps:

[0043] 1) The roll material with paper tube shaft is detachably and horizontally fixed on the workbench. Remove the outer packaging of the roll material and pull the paper tube shaft out of the roll material at a speed of 0.01m / s to 0.1m / s for 5 to 10cm to form the paper tube shaft pull-out end.

[0044] 2) Align one end of the perforated glue-injecting shaft with the port of the paper tube shaft pull-out end, and keep the perforated glue-injecting shaft horizontal, then wrap the connection of the port with tape;

[0045] 3) Slowly push the paper tube shaft out of the roll completely from the core of the roll by pressing the perforated glue injection axis in the direction of the roll material. The pushing speed should be controlled within 0.01m / s to 0.1m / s.

[0046] 5) Disconnect the tape at the connection between the paper tube shaft and the perforated glue injection shaft, and remove the paper tube shaft.

[0047] The inner diameter ψ2 of the paper tube shaft is 50mm to 76.5mm, and the outer diameter Φ2 of the paper tube shaft is 60mm to 87mm.

[0048] The inner diameter ψ1 of the perforated glue-injecting shaft is 50mm to 76.5mm, and the outer diameter Φ1 of the perforated glue-injecting shaft is 52mm to 81mm.

[0049] The length of the paper tube shaft is d1, the length of the perforated glue injection shaft is d2, and the length of the roll material is d3; wherein, 1.5m≤d1≤1.53m, 1.5m≤d2≤1.53m, and d3≤d1≤d2.

[0050] The roll material is detachably fixed in the horizontal slot of the workbench.

[0051] Example 2:

[0052] The only difference between Example 2 and Example 1 is that the roll material is a foamed roll material, which is a foamed roll material prepared from melamine or melamine as raw materials.

[0053] Example 3:

[0054] The only difference between Example 3 and Example 1 is that the roll material is needle-punched felt roll material or spunlace felt roll material, and the needle-punched felt roll material and spunlace felt roll material are prepared from polyester, pre-oxidized fiber, glass fiber or ceramic fiber as raw materials.

[0055] Example 4:

[0056] The present invention discloses a method for replacing the paper tube shaft of pre-oxidized fiber needle-punched felt roll with a perforated glue injection shaft, wherein the pre-oxidized fiber needle-punched felt roll has a thickness of 2mm and a length of 150m.

[0057] The inner diameter ψ2 of the pre-oxidized filament needle-punched felt roll is 76.2 mm, the outer diameter Φ2 is 81.2 mm, and the length d1 is 1.5 m. Before performing the sol-gel operation, the paper tube shaft needs to be replaced with a glue injection shaft. The pre-oxidized filament needle-punched felt roll is detachably and horizontally fixed on the workbench. The outer packaging of the roll is removed, and the paper tube shaft is pulled out of the roll at a speed of 0.05 m / s for 5 cm, forming the paper tube shaft pull-out end. One end of the perforated glue injection shaft is aligned with the port of the paper tube shaft pull-out end, and the perforated glue injection shaft is kept horizontal. Then, tape is used to wrap the connection of the port. The perforated glue injection shaft is slowly pushed in the direction of the roll to completely remove the paper tube shaft from the core of the roll. The pushing speed is controlled within 0.01 m / s to 0.1 m / s. The tape at the connection between the paper tube shaft and the perforated glue injection shaft is disconnected, and the paper tube shaft is removed. After the paper tube shaft is removed, the pre-oxidized fiber needle-punched felt roll is subjected to a full-roll immersion process to begin the sol-gel operation. In this Example 4, the entire process of replacing the paper tube shaft of the pre-oxidized fiber needle-punched felt roll with the perforated glue-injection shaft requires 5 minutes.

[0058] Comparative Example 1:

[0059] The method of using a rewinding device to rewind the pre-oxidized filament needle-punched felt roll to replace the paper tube shaft with a perforated glue injection shaft, the pre-oxidized filament needle-punched felt roll being 2mm thick and 150m long.

[0060] The inner diameter of the paper tube shaft of the pre-oxidized fiber needle-punched felt roll is ψ2 = 76.2 mm, the outer diameter is Φ2 = 81.2 mm, and the length is d1 = 1.5 m. An air shaft with an outer diameter of 76.2 mm and a length of 2.2 m is inserted into the central paper tube shaft of the pre-oxidized fiber needle-punched felt roll, with the air shaft protruding from both ends. The two ends of the air shaft are fixed to the unwinding area of ​​the winding equipment. After centering, the air shaft is inflated to secure the paper tube shaft. Another air shaft with an outer diameter of 76.2 mm and a length of 2.2 m is then inserted... The perforated glue-injection shaft is inserted into the coil, with the air-expanding shaft protruding from both ends. The ends of this air-expanding shaft are fixed to the winding area within the winding equipment. After centering, the air-expanding shaft is inflated to secure it. The pre-oxidized needle-punched felt roll is then manually unwound and pulled onto the perforated glue-injection shaft for tightening. Once it is confirmed that the roll will not detach from the shaft, the automatic alignment system is activated to begin automatic winding. After winding is complete, the air-expanding shaft is deflated and removed. After removing the air-expanding shaft, the pre-oxidized needle-punched felt roll is subjected to a full-roll immersion process to begin the sol-gel operation. The entire process of replacing the paper tube shaft of the pre-oxidized needle-punched felt roll with the perforated glue-injection shaft in Comparative Example 1 took 30 minutes.

[0061] The methods for replacing paper tubes with perforated glue-injection shafts in Examples 1-4 described above are simple to operate, do not damage the internal materials of the core and thus do not cause material waste, and shorten the working time of replacing paper tubes with perforated glue-injection shafts by 5-6 times, greatly improving production efficiency; and effectively solve the waste of time and human resources caused by repeatedly winding organic or inorganic materials to replace paper tubes, effectively solve the cost increase caused by providing a large number of glue-injection shafts to organic or inorganic material suppliers, and effectively meet the needs of new energy aerogel heat insulation pads.

[0062] This invention has been described through the specific embodiments described above. Those skilled in the art should understand that various modifications and equivalent substitutions can be made to this invention without departing from its scope. Parts not described in detail in this specification are well-known to those skilled in the art. Furthermore, various modifications can be made to this invention for specific situations or circumstances without departing from its scope. Therefore, this invention is not limited to the specific embodiments disclosed, but should include all embodiments falling within the scope of the claims.

Claims

1. A method for replacing a paper tube shaft with a perforated glue-injection shaft, characterized in that, The paper tube shaft is the core shaft of the roll material. Both the perforated glue injection shaft and the paper tube shaft are cylindrical shafts. The outer diameter of the perforated glue injection shaft is Φ1 and the inner diameter is ψ1. The outer diameter of the paper tube shaft is Φ2 and the inner diameter is ψ2, and ψ2≤ψ1<Φ1<Φ2. The method specifically includes the following steps: 1) The roll material with paper tube shaft is detachably and horizontally fixed on the workbench. The outer packaging of the roll material is removed. The paper tube shaft is pulled out of the roll material at a speed of 0.01m / s ~ 0.1m / s for a length of 5cm to 10cm to form the paper tube shaft pull-out end. 2) Align one end of the perforated glue injection shaft with the port of the paper tube shaft pull-out end, keep the perforated glue injection shaft horizontal, and then wrap the connection of the port with tape; 3) Slowly push the perforated glue injection axis in the direction of the roll material to completely remove the paper tube shaft from the core of the roll material. The pushing speed should be controlled within 0.01m / s to 0.1m / s. 4) Disconnect the tape at the connection between the paper tube shaft and the perforated glue injection shaft, and remove the paper tube shaft.

2. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 1, characterized in that, The inner diameter ψ2 of the paper tube shaft is 50mm ~ 76.5mm, and the outer diameter Φ2 of the paper tube shaft is 60mm ~ 87mm.

3. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 2, characterized in that, The inner diameter ψ1 of the perforated glue injection shaft is 50mm ~ 76.5mm, and the outer diameter Φ1 of the perforated glue injection shaft is 52mm ~ 81mm.

4. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 3, characterized in that, The length of the paper tube shaft is d1, the length of the perforated glue injection shaft is d2, and the length of the roll material is d3; wherein, 1.5 m ≤ d1 ≤ 1.53 m, 1.5 m ≤ d2 ≤ 1.53 m, and d3 ≤ d1 ≤ d2.

5. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 4, characterized in that, The roll material is detachably fixed in the horizontal slot of the workbench.

6. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 5, characterized in that, The roll material is a foamed roll material.

7. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 6, characterized in that, The foamed roll material is a foamed roll material prepared from melamine or melamine as raw materials.

8. The method for replacing the paper tube shaft with a perforated glue-injection shaft according to claim 5, characterized in that, The roll material is needle-punched felt roll material or spunlace felt roll material.

9. The method for replacing a paper tube shaft with a perforated glue-injection shaft according to claim 8, characterized in that, The needle-punched felt rolls and spunlace felt rolls are made from polyester, pre-oxidized fiber, glass fiber or ceramic fiber as raw materials.

10. An application of a method for replacing a paper tube shaft with a perforated glue-injection shaft as described in any one of claims 1 to 9, characterized in that, The method is used in the preparation process of aerogels.