Softwood profiled cored compression molded product fill compression molding process
By using a cork shaped core-adding molding process, and by combining multiple sets of scrapers and mold cores, the problems of uneven density, elasticity, and insufficient strength of shaped cork products are solved, thereby improving the uniformity of the products and their decorative effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI KORBENA CORK CO LTD
- Filing Date
- 2024-01-31
- Publication Date
- 2026-06-23
Smart Images

Figure CN117984496B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of filler molding process, specifically the filler molding process for cork shaped core-molded products. Background Technology
[0002] Existing molding processes suffer from several drawbacks. Firstly, the cork granules lack fluidity. If the material is simply added to the feed hopper in a flat, even manner, rather than being uniformly distributed according to the shape, the resulting molded product will exhibit uneven strength. Areas with more material will be harder, while areas with less will be softer, leading to inconsistent strength and increased susceptibility to breakage. This makes it difficult to achieve consistent density and elasticity for irregularly shaped products, even when the filling is uniform and the elasticity is consistent. Furthermore, current cork molding processes, being purely cork molding, result in limited strength. Even with uniform filling and consistent elasticity, the product is still prone to breakage. Finally, the overall composition of cork granules limits the decorative effect of the product. Summary of the Invention
[0003] To address the issues of how to filler in existing irregularly shaped cork molding products to achieve consistent elasticity and uniform density after molding, and how to solve the problems of product breakage and strength after molding, since traditional cork molding products have elasticity but limited strength, this invention provides a filling molding process for cork irregularly shaped core-added molding products.
[0004] The technical solution adopted by this invention to solve its technical problem is: a cork irregular-shaped core-filled molding product filling molding process, including a material feeding hopper forming mold, scraper A, scraper B, scraper C, upper forming mold, mold core, and the following steps:
[0005] The upper forming mold is matched with the lower forming mold, and the top of the lower forming mold is provided with a filling groove;
[0006] The bottom of the A scraper is provided with A scraper grooves on both sides corresponding to the filler groove;
[0007] Both sides of the bottom of the B scraper are provided with B scraper groove one corresponding to the filling groove, and B scraper groove two is provided on the inner bottom wall of B scraper groove one.
[0008] Both sides of the bottom of the C scraper are provided with C scraping grooves corresponding to the filling groove.
[0009] Step 1: Add cork filler to the filling groove inside the hopper forming mold, align the A scraper groove on scraper A with the top of the hopper forming mold, and then scrape the cork filler inside the filling groove and remove excess cork material by moving scraper A.
[0010] Step 2: Align the B scraper groove 1 on the B scraper with the top of the material feeding hopper forming mold, and insert the B scraper groove 2 on the B scraper into the cork filler material that was scraped flat in the first step and move it until a groove that matches the mold core is scraped out.
[0011] Step 3: After applying glue to the top, bottom, and four sides of the mold core, fill it into the groove that was scraped out in step 2 to match the mold core;
[0012] Step 4: Add cork filler to the inside of the filling groove a second time, align the C-groove on the C scraper with the top of the material feeding hopper forming mold, and then scrape the second-filled cork filler flat and remove the excess cork filler by moving the C scraper.
[0013] Step 5: Connect the upper forming mold to the lower forming mold for pressing and forming.
[0014] Specifically, the cork filler added in the first step is half of the total amount, and the cork filler added in the fourth step is added until it is flush with the filling groove.
[0015] Specifically, in the fifth step of the production pressing process, the temperature is controlled between 100-130℃, the heating time is between 25-35 minutes, the pressure value is 7-10KG per square centimeter, and the pressure is adjusted according to the size of the product to be prepared (the amount of cork particles added), and the moisture content is maintained at 8-12%.
[0016] The beneficial effects of this invention are:
[0017] The cork irregular core-filled molding product filling molding process of the present invention uses multiple sets of scrapers to scrape the material and fill it with a mold core, so that the filling material is uniform, the density is uniform, and the elasticity and strength are consistent. The addition of a mold core inside for simultaneous molding makes the strength of the molded product stronger, making the product more durable and less prone to damage and breakage.
[0018] Furthermore, decorative materials can be added after molding to enhance the decorative effect of the outer surface. Adding different cork decorative layers during the molding process can enhance the decorative effect of the product itself, making it not only durable but also beautiful. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 A schematic diagram of the material hopper forming mold in the filling molding process of the cork irregular core molding product provided by the present invention;
[0021] Figure 2This is a schematic diagram of the scraper structure in the filler molding process of the cork irregular core-molded product provided by the present invention;
[0022] Figure 3 The upper forming mold is provided in the filling molding process of the cork irregular core molding product provided by the present invention.
[0023] In the diagram: 1. Feeding hopper forming mold; 11. Filling groove; 2. A scraper; 21. A scraper groove; 3. B scraper; 31. B scraper groove one; 32. B scraper groove two; 4. C scraper; 41. C scraper groove; 5. Upper forming mold. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0025] like Figures 1-3 As shown, the cork shaped core-filled molding process of the present invention includes a material feeding mold 1, scraper A 2, scraper B 3, scraper C 4, upper mold 5, mold core, and the following steps:
[0026] The upper forming mold 5 is matched with the lowering hopper forming mold 1, and the top of the lowering hopper forming mold 1 is provided with a filling groove 11;
[0027] A scraper 21 is provided on both sides of the bottom of scraper 2, corresponding to the filling groove 11;
[0028] Both sides of the bottom of the scraper 3 are provided with scraper groove 11 and scraper groove 2 32 is provided on the inner bottom wall of scraper groove 31.
[0029] C-scraper grooves 41 are provided on both sides of the bottom of the C scraper 4, corresponding to the filling groove 11;
[0030] Step 1: Add cork filler to the filling groove 11 inside the feeding hopper forming mold 1, align the A scraper groove 21 on the A scraper 2 with the top of the feeding hopper forming mold 1, and then scrape the cork filler inside the filling groove 11 flat and remove excess cork material by moving the A scraper 2.
[0031] Step 2: Align B scraping groove 31 on scraper 3 with the top of the material feeding mold 1, and insert B scraping groove 32 on scraper 3 into the cork filler material that was scraped flat in step 1 and move it until a groove that matches the mold core is scraped out.
[0032] Step 3: After applying glue to the top, bottom, and four sides of the mold core, fill it into the groove that was scraped out in step 2 to match the mold core;
[0033] Step 4: Add cork filler to the inside of the filling groove 11 for the second time, align the C scraper groove 41 on the C scraper 4 with the top of the feeding bin forming mold 1, and then scrape the cork filler that was filled for the second time by moving the C scraper 4 and scrape off the excess cork filler.
[0034] Step 5: Connect the upper forming mold 5 to the lower forming mold 1 for pressing and forming.
[0035] Specifically, during the molding process, two filling operations are required;
[0036] Before molding, a custom-made wooden core or a core made of other heat-resistant materials is required, which is the same as the shape of the finished product but 6mm smaller in length, width and height. The core is 6mm smaller in length, width and height to ensure that after molding, the entire core is evenly covered with 3mm of cork.
[0037] The scraper can be made of wood, plastic, etc., with a thickness of 3-5mm, and its shape and dimensions have the following requirements:
[0038] The length of the scraper 2 at the bottom of scraper 2 is half the total amount of filler material, so as to ensure that the scraper 2 extends long enough into the filler groove 11 and that when scraping off excess cork filler material, the cork filler material at the bottom of the filler groove 11 is half the total amount of cork filler material.
[0039] The shape requirements of scraper 3 are as follows: the length of scraper groove 1 31 and the length of scraper groove 2 32 are as follows: scraper groove 1 31 is located at half the total filling amount, and scraper groove 2 32 is located at half the thickness of the mold core.
[0040] In scraper 4, scraper groove 41 in C is the total length of the filler material;
[0041] The amount of filler is calculated in advance based on the elasticity and density of the finished product design, using 2, 2.5, or 3 times the thickness of cork material.
[0042] The first filling material is half the total amount; first use scraper A2 to smooth the filled cork material according to its shape;
[0043] Then use scraper B3 to scrape out the position for placing the mold core and remove the excess cork material;
[0044] After gently applying glue to the top, bottom, and four sides of the mold core, fill the space in the mold core that has been scraped out.
[0045] The second filling of cork material should be flush with the forming mold 1 of the feeding hopper;
[0046] Then, the upper and lower molds are pressed together to form the shape;
[0047] Furthermore, it can enhance the decorative effect of the outer layer. Adding different cork decorative layers during the molding process can increase the decorative effect of the product itself, making it not only durable but also beautiful. For cork irregular-shaped molded products, if there is only the effect of cork particles, the decorative feel is monotonous. To increase the surface decoration, after molding, a cork decorative fabric or cork bark decorative material of the same size as the surface can be applied. Glue is applied to the surface of the molded product and the back of the decorative material, allowing the decorative material to adhere to the surface of the molded product. The mold is used to apply pressure and heat to bond the materials together. This can increase the diversity of the surface decorative effect.
[0048] Regarding the amount of cork pellets added:
[0049] 1. Product design density × product volume = product weight;
[0050] 2. Method for measuring the bulk density of cork particles: Fill a 10CM×10CM×10CM container with cork particles and weigh them. This weight is the bulk density of the batch of cork particles used in production.
[0051] 3. Weigh the same weight of cork granules based on the calculated product weight, add them to the mold, and press the product. After pressing, measure the density to see if it meets the product's design density. The method is: product weight ÷ product volume = product density. Test the product density of the first batch of pressed product with added raw materials to see if it matches the design density. If it is lower, increase the amount of raw materials added; if it is higher than the design density, decrease the amount of raw materials added until it matches the product's design density. Weigh the finished cork granules, ensuring the same amount of raw materials is added each time to maintain consistent product weight and density. If changing batches of cork granules, remeasurement is required. During testing, use a 10cm x 10cm x 10cm container to measure the cork weight. If the weight is lighter, reduce the amount of cork granules added; if the weight is heavier, increase the amount of cork granules added.
[0052] Regarding temperature: During the production pressing process, the temperature should be controlled between 100-130℃, depending on the size of the product; the heating time should be between 25-35 minutes.
[0053] Regarding the pressure value: 7-10KG per square centimeter. The pressure should be adjusted according to the size of the product to be prepared (the amount of cork particles added).
[0054] Regarding moisture content: The moisture content of the raw materials should be maintained at 8-12%.
[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A filling molding process for cork irregular-shaped core-added molded products, characterized in that, Includes the material feeding hopper forming mold (1), scraper A (2), scraper B (3), scraper C (4), upper forming mold (5), and mold core: The upper forming mold (5) is matched with the lowering hopper forming mold (1), and the top of the lowering hopper forming mold (1) is provided with a filling groove (11). The bottom sides of the scraper A (2) are provided with scraper A grooves (21) corresponding to the filling grooves (11); Both sides of the bottom of the B scraper (3) are provided with B scraper groove 1 (31) corresponding to the filling groove (11), and B scraper groove 2 (32) is provided on the inner bottom wall of the B scraper groove 1 (31). The bottom sides of the C scraper (4) are provided with C scraper grooves (41) corresponding to the filling grooves (11). The length of the bottom A scraper groove (21) of the scraper (2) is half of the total filler volume, so as to ensure that the scraper (2) extends to the inside of the filler groove (11) long enough and that when scraping off excess cork filler, the cork filler at the bottom of the filler groove (11) is half of the total cork filler. The shape requirements of scraper (3) are as follows: the length of scraper groove 1 (31) and the length of scraper groove 2 (32) are as follows: scraper groove 1 (31) is half the total filling amount and scraper groove 2 (32) is half the thickness of the mold core. In the C scraper (4), the C scraper groove (41) is the total length of the filler material; The molding process Includes the following steps: Step 1: Add cork filler to the filling groove (11) inside the hopper forming mold (1), and align the A scraper groove (21) on the A scraper (2) with the top of the hopper forming mold (1). Then, by moving the A scraper (2), scrape the cork filler inside the filling groove (11) flat and scrape away the excess cork material. Step 2: Align the B scraping groove 1 (31) on the B scraper (3) with the top of the material feeding mold (1), and insert the B scraping groove 2 (32) on the B scraper (3) into the cork filler material that was scraped flat in the first step and move it until a groove that matches the mold core is scraped out. Step 3: After applying glue to the upper, lower and four sides of the mold core, fill it into the groove that was scraped out in step 2 to match the mold core; Step 4: Add cork filler to the inside of the filling groove (11) for the second time, and align the C scraper groove (41) on the C scraper (4) with the top of the feeding bin forming mold (1). Then, by moving the C scraper (4), scrape the cork filler that was filled for the second time flat and scrape off the excess cork filler. Step 5: Connect the upper forming mold (5) to the lower forming mold (1) for pressing and forming.