Manufacturing method of softwood seamless wrapping product

Abstract

The invention relates to the technical field of cork product processing, in particular to a manufacturing method of a cork seamless wrapping product, the cork wrapping product manufactured through the manufacturing method of the cork seamless wrapping product is free of mold pressing joints of upper and lower mold pressing products, so that the surface of the product is smoother, the attractiveness and the overall texture of the product are greatly improved, and the production cost is reduced. Compared with a compression molding technology, the manufacturing method has the advantages that a more efficient molding mode is adopted, the production period can be greatly shortened, the production efficiency can be improved, the sleeving speed is high, the production efficiency is high, the production perfectness is high, for enterprises needing mass production, higher yield and lower cost are achieved, and the market competitiveness can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of cork product processing, in particular to a method for manufacturing a seamless cork wrapping product. Background Art

[0002] As a unique decorative material, cork wrapped products have been widely used in the market due to their good sound insulation, heat insulation, anti-slip and constant temperature performance and comfortable touch. However, there are many shortcomings in the production methods of existing cork wrapped products, which affect the quality and production efficiency of the products.

[0003] There are three main methods for making cork wrapped products on the market: one is to mold the upper and lower parts of the cork product separately and then glue them to the workpiece; the second is to mold them together with the workpiece and mold them with the cork part at one time; the third is to produce the cork part first and then put it on the workpiece. There are some problems with these: First, although the molding method can ensure the shape and size accuracy of the product, the molding seams of the finished product often affect the appearance and the production efficiency is relatively low. Especially when it is necessary to produce large quantities of products, the problem of molding seams is particularly prominent.

[0004] Secondly, although the traditional wrapping technology is easy to operate, the cork part has a low density, is soft and easy to deform, which makes the product easy to break during use and lacks durability. In order to improve the durability of the product, some manufacturers will increase the density of cork, but this makes the wrapping process difficult, reduces production efficiency, and reduces the yield rate.

[0005] Therefore, how to overcome the shortcomings of the existing cork package product manufacturing method and improve the product quality and production efficiency has become an urgent problem to be solved. In view of this situation, the present invention proposes a method for manufacturing a cork seamless package product. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, the present invention provides a method for manufacturing a seamless cork wrapping product.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a method for making a seamless cork wrapping product of the present invention comprises the following steps: Step 1: Make a hydraulic extrusion die according to the outer diameter size requirements of the workpiece to be wrapped; Step 2: Mix cork particles of different specifications in a certain proportion; Step 3: Put the cork particles mixed in the second step and 30% of the adhesive by weight of the total particles into a mixer and stir evenly; Step 4: Pour the cork particles mixed with the adhesive in the third step into the prepared hydraulic extrusion mold at a temperature of 100-130°C for hydraulic extrusion, and continuously produce rods to make cork hollow rods; Step 5: naturally cool and solidify the hollow cork rod formed by hydraulic extrusion in the fourth step, and store it at room temperature for 24-48 hours; Step 6: Cut the hollow cork rod solidified and formed in the fifth step into the required length for wrapping the workpiece; Step 7: Place the hollow cork rod cut in step 6 into the oven space and heat it at 70-80°C for 1-2 hours. While heating the hollow cork rod, apply water-based glue to the external installation position of the workpiece. Step 8: Put the cork hollow rod heated in step 7 directly on the designed position of the workpiece; Step 9: Cool and solidify the hollow cork rods assembled in step 8 again, and store them at room temperature for 24-48 hours to obtain a cork seamlessly wrapped product.

[0008] Preferably, the cork particles selected in the second step are mixed by weight percentage, i.e., 50% of 16-24 mesh cork particles, 30% of 24-30 mesh cork particles, and 20% of 12-16 mesh cork particles, and the bulk density of the cork particles is required to be 60-80 g / 10 cm 3 .

[0009] Preferably, the adhesive in the third step is oily polyurethane glue.

[0010] Preferably, the density of the hollow cork rod in the fourth step is 280-300 kg / m³.

[0011] Preferably, the cork hollow rods cured and formed in the sixth step are cut by sawing or precision sawing.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The cork wrapped product produced by the method for producing a seamless cork wrapped product of the present invention has no molded joints between the upper and lower molded products, so that the product surface is flatter and smoother, greatly improving the aesthetics and overall texture of the product; 2. Compared with the compression molding technology, the method for making a seamless cork wrapping product of the present invention adopts a more efficient molding method, which can greatly shorten the production cycle, improve production efficiency, and has a fast assembly speed, high production efficiency, and high production perfection. For enterprises that need mass production, it means higher output and lower cost, which helps to improve market competitiveness; 3. The cork wrapped product produced by the method for producing a seamless cork wrapped product of the present invention has high finished product density, high breakage resistance, is not easy to deform, and has a high yield rate; 4. The method for making a seamless cork wrapping product of the present invention optimizes the processing technology of the cork material, which not only retains the soft touch of the cork, but also significantly improves its durability. Even under high-intensity use, the product is not easy to break, and the service life is extended. This reduces the replacement frequency of users and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 The present invention is a flow chart of a method for manufacturing a seamless cork wrapping product. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0016] Embodiment 1 See also Figure 1 The process shown is a method for making a seamless cork wrapping product, comprising the following steps: Step 1: Make a hydraulic extrusion die according to the outer diameter size requirements of the workpiece to be wrapped; Step 2: Mix cork particles of different specifications in a certain proportion; Step 3: Put the cork particles mixed in the second step and 30% of the adhesive by weight of the total particles into a mixer and stir evenly; Step 4: Pour the cork particles mixed with the adhesive in the third step into the prepared hydraulic extrusion mold at a temperature of 100-130°C for hydraulic extrusion, and continuously produce rods to make cork hollow rods; Step 5: naturally cool and solidify the hollow cork rod formed by hydraulic extrusion in the fourth step, and store it at room temperature for 24-48 hours; Step 6: Cut the hollow cork rod solidified and formed in the fifth step into the required length for wrapping the workpiece; Step 7: Place the hollow cork rod cut in step 6 into the oven space and heat it at 70-80°C for 1-2 hours. While heating the hollow cork rod, apply water-based glue to the external installation position of the workpiece. Step 8: Put the cork hollow rod heated in step 7 directly on the designed position of the workpiece; Step 9: Cool and solidify the hollow cork rods assembled in step 8 again, and store them at room temperature for 24-48 hours to obtain a seamless cork wrapped product.

[0017] The design of the hydraulic extrusion die needs to be customized according to the specific shape and size of the workpiece to ensure that the hollow cork rod can match the workpiece after forming.

[0018] Embodiment 2 Preferably, the cork particles selected in the second step are mixed by weight percentage, i.e., 50% of 16-24 mesh cork particles, 30% of 24-30 mesh cork particles, and 20% of 12-16 mesh cork particles, and the bulk density of the cork particles is required to be 60-80 g / 10 cm 3 .

[0019] The above cork particles have a specific bulk density and are soft and elastic. When the three types of cork particles of different sizes are mixed and stirred evenly, the gaps between the particles in the material can be reduced, making the finished product tighter.

[0020] Preferably, the adhesive in the third step is oily polyurethane glue.

[0021] Preferably, the density of the hollow cork rod in the fourth step is 280-300 kg / m³.

[0022] The cork hollow rods cured and formed in the sixth step are cut by sawing or precision sawing.

[0023] The density of the hollow cork stick is 280-300kg / m³, so that the product after cooling and molding will have good elasticity and firm feel, and will not be easily damaged; the addition of 30% oil-based polyurethane glue can ensure that the molded cork stick will be soft and not easily damaged after being heated again, making it easy to assemble.

[0024] In the sixth step, the cut cork hollow bars are inspected for size to ensure that the length, diameter and other parameters of each bar meet the standards.

[0025] After the hollow cork stick formed in the seventh step is heated, the cork stick can be thoroughly heated from the inside out, because the preferred cork particles and a sufficient amount of oily polyurethane glue can make the cork stick very soft and elastic after heating.

[0026] A method for manufacturing a seamless cork wrapped product, which has a wide range of applications and can be specifically applied to handles or armrests in the following various occasions, such as bicycle handlebars, car steering wheels, baby stroller handles, fitness equipment handles, racket handles, ski pole grips, trekking pole grips, household item handrails, medical equipment grips, industrial equipment grips, etc.

[0027] Embodiment 3 A method for manufacturing a seamless cork wrapping product, comprising the following steps: Step 1: Make a hydraulic extrusion die according to the outer diameter size requirements of the bicycle handlebar or baby stroller handlebar; Step 2: Mix cork particles of different specifications in a certain proportion; The selected cork particles are mixed by weight, with 16-24 mesh cork particles accounting for 50%, 24-30 mesh cork particles accounting for 30%, and 12-16 mesh cork particles accounting for 20%. The bulk density of the cork particles is required to be 60-80g / 10cm 3 .

[0028] Step 3: Put the cork particles mixed in the second step in proportion and 30% of the oil-based polyurethane glue of the total particle weight into a mixer and stir evenly; Step 4: Pour the cork particles mixed with the adhesive in the third step into the prepared hydraulic extrusion mold for hydraulic extrusion, and continuously produce rods to make cork hollow rods; the density of the cork hollow rods is 280-300kg / m³.

[0029] Step 5: naturally cool and solidify the hollow cork rod formed by hydraulic extrusion in the fourth step, and store it at room temperature for 24 hours; Step 6: Cut the hollow cork rod solidified and formed in the fifth step into the required length for wrapping the workpiece; In the sixth step, the solidified hollow cork rods are cut with a precision saw, and the cut hollow cork rods are inspected for size to ensure that the length, diameter and other parameters of each rod meet the standards.

[0030] Step 7: Place the hollow cork rods cut in step 6 into the oven and heat them at 70-80°C for 1 hour. While heating the hollow cork rods, apply water-based glue to the external mounting position of the handlebars of the bicycle or baby carriage. Step 8: Put the cork hollow rod heated in step 7 directly on the designed position of the bicycle handlebar or baby carriage handlebar; Step 9: Cool and solidify the hollow cork rods assembled in step 8 again, and store them at room temperature for 24 hours to obtain a cork seamlessly wrapped product.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for producing a seamless cork wrapping product, characterized in that: The steps include: Step 1: Make a hydraulic extrusion die according to the outer diameter size requirements of the workpiece to be wrapped; Step 2: Mix cork particles of different specifications in a certain proportion; Step 3: Put the cork particles mixed in the second step and 30% of the adhesive by weight of the total particles into a mixer and stir evenly; Step 4: Pour the cork particles mixed with the adhesive in the third step into the prepared hydraulic extrusion mold at a temperature of 100-130°C for hydraulic extrusion, and continuously produce rods to make cork hollow rods; Step 5: naturally cool and solidify the hollow cork rod formed by hydraulic extrusion in the fourth step, and store it at room temperature for 24-48 hours; Step 6: Cut the hollow cork rod solidified and formed in the fifth step into the required length for wrapping the workpiece; Step 7: Place the hollow cork rod cut in step 6 into the oven space and heat it at 70-80°C for 1-2 hours. While heating the hollow cork rod, apply water-based glue to the external installation position of the workpiece. Step 8: Put the cork hollow rod heated in step 7 directly on the designed position of the workpiece; Step 9: Cool and solidify the hollow cork rods assembled in step 8 again, and store them at room temperature for 24-48 hours to obtain a seamless cork wrapped product.

2. The method for making a seamless cork wrapping product according to claim 1, characterized in that: The cork particles selected in the second step are mixed by weight percentage, including 50% 16-24 mesh cork particles, 30% 24-30 mesh cork particles, and 20% 12-16 mesh cork particles, and the bulk density of the cork particles is required to be 60-80g / 10cm 3 .

3. The method for making a seamless cork wrapping product according to claim 1, characterized in that: The adhesive in the third step is oily polyurethane glue.

4. The method for making a seamless cork wrapping product according to claim 1, characterized in that: The density of the hollow cork rod in the fourth step is 280-300 kg / m³.

5. The method for making a seamless cork wrapping product according to claim 1, characterized in that: The shaped cork hollow rod is arranged in a square tube, a round tube, a triangular tube or other shapes.

6. The method for making a seamless cork wrapping product according to claim 1, characterized in that: The cork hollow rods cured and formed in the sixth step are cut by sawing or precision sawing.

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