Anti-deformation die structure with inverted deep cavity

Abstract

The utility model provides a deep-cavity inverted anti-deformation mold structure which comprises an upper fixing plate, an ejector plate, a fixed mold plate, a movable mold plate and a lower fixing plate from top to bottom, a fixed mold insert is embedded in the bottom of the fixed mold plate, a forming groove is formed in the movable mold plate, the bottom of the forming groove protrudes to form a protruding block, and the fixed mold insert is arranged in the forming groove to form a forming cavity. According to the outdoor chair mold, firstly, inverted molding is adopted, so that a glue inlet pouring gate is arranged at the bottom of an outdoor chair, no trace is formed on the outer surface of a product, secondly, the glue inlet pouring gate is arranged at the bottom of the outdoor chair, and finally, the glue inlet pouring gate is arranged at the bottom of the outdoor chair. A single glue inlet is adopted, multiple weld lines cannot be formed on the surface of a product, finally, the two sides of the fixed mold insert protrude outwards in an arc shape to be matched with the two sides of the forming groove in an arc shape, the two sides of the formed outdoor chair are prevented from being concaved inwards and deformed after being cooled, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, and more specifically, to a deep cavity flip-chip anti-deformation mold structure. Background Art

[0002] A mold is a tool used to produce molded products. Different shaped products are made through different shapes of the mold, such as Figure 1 the outdoor chair shown. The outdoor chair is integrally injection molded. Traditional outdoor chair molds usually adopt the design of multiple hot nozzle gates to reduce the injection pressure and reduce product deformation. However, such a design of multiple hot nozzle gates easily leads to multiple weld lines on the product, affecting the appearance of the product, and the two sides of the injection molded outdoor chair are prone to concave deformation after cooling, affecting the product quality. Summary of the Utility Model

[0003] The utility model provides a deep cavity flip-chip anti-deformation mold structure, aiming to solve the technical problems mentioned in the above technical background.

[0004] To achieve the above object, the utility model adopts the following technical solutions: A deep cavity flip-chip anti-deformation mold structure includes an upper fixing plate, a ejector plate, a stationary mold plate, a moving mold plate, and a lower fixing plate from top to bottom. A stationary mold insert is embedded at the bottom of the stationary mold plate. A forming groove is formed in the moving mold plate, and a convex block protrudes from the bottom of the forming groove. The stationary mold insert is placed in the forming groove to form a forming cavity. The two sides of the stationary mold insert protrude outward in an arc shape, and the two corresponding sides of the forming groove are arc-shaped depressions. The upper fixing plate is provided with a feed pipe, and the feed pipe passes downward through the ejector plate, the stationary mold insert, and the moving mold plate to the cavity.

[0005] Further, the stationary mold plate is respectively provided with a top block at the four corners of the stationary mold insert. The bottom of the ejector plate is provided with a first ejector rod, and the first ejector rod is connected to the top block.

[0006] Further, a water pipe is arranged at the bottom of the ejector plate, and the water pipe is connected to the top block through the ejector rod.

[0007] Further, the stationary mold insert is further provided with a square block. The bottom of the ejector plate is provided with a second ejector rod, and the second ejector rod is connected to the square block.

[0008] Further, the moving mold plate is further provided with a water well.

[0009] Further, a plurality of cooling channels are arranged inside the stationary mold plate and the moving mold plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model relates to a deep cavity flip-chip anti-deformation mold structure, which includes an upper fixing plate, a thimble plate, a stationary mold plate, a moving mold plate, and a lower fixing plate from top to bottom. A stationary mold insert is embedded at the bottom of the stationary mold plate. A forming groove is formed in the moving mold plate, and a convex block protrudes from the bottom of the forming groove. The stationary mold insert is placed in the forming groove to form a forming cavity. The two sides of the stationary mold insert protrude outwards in an arc shape, and the two sides of the corresponding forming groove are recessed in an arc shape. The upper fixing plate is provided with a glue inlet pipe, and the glue inlet pipe passes through the thimble plate, the stationary mold insert, and the moving mold plate downwards to the cavity. Firstly, the flip-chip forming is adopted in the utility model, so that the glue inlet gate is at the bottom of the outdoor chair and no trace will be formed on the outer surface of the product. Secondly, a single glue inlet is adopted, so that no multiple weld lines will be formed on the product surface. Finally, the two sides of the stationary mold insert protruding outwards in an arc shape are matched with the two sides of the forming groove recessed in an arc shape, so that the formed outdoor chair will not be concave and deformed after cooling, and the product quality is improved. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic diagram of the outdoor chair structure;

[0014] Figure 2 It is a schematic diagram of the deep cavity flip-chip anti-deformation mold structure of the present utility model;

[0015] Figure 3 It is a schematic diagram of the stationary mold plate structure of the deep cavity flip-chip anti-deformation mold structure of the present utility model;

[0016] Figure 4 It is a schematic diagram of the moving mold plate structure of the deep cavity flip-chip anti-deformation mold structure of the present utility model;

[0017] Figure 5 It is a schematic diagram of the thimble plate, ejector block, and square block structure of the deep cavity flip-chip anti-deformation mold structure of the present utility model.

[0018] Main Component Symbol Description

[0019] 10. Upper fixing plate; 101. Glue inlet pipe;

[0020] 20. Thimble plate; 201. First ejector rod; 202. Second ejector rod; 203. Water pipe;

[0021] 30. Stationary mold plate; 301. Stationary mold insert; 302. Ejector block; 303. Square block;

[0022] 40. Moving template; 401. Molding groove;

[0023] 50. Lower fixed plate

[0024] 60. Outdoor chair. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed" and other terms shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0028] Embodiment

[0029] Figure 1 The shown outdoor chair 60 is integrally injection-molded.

[0030] Refer toFigure 2 As shown in the figure, the utility model discloses a deep cavity flip - flop anti - deformation die structure, which includes an upper fixing plate 10, a thimble plate 20, a fixed die plate 30, a moving die plate 40, and a lower fixing plate 50 from top to bottom. A fixed die insert 301 is embedded at the bottom of the fixed die plate 30. A forming groove 401 is formed in the moving die plate 40, and a convex block protrudes from the bottom of the forming groove 401. The fixed die insert 301 is placed in the forming groove 401 to form a forming cavity. When the mold is closed, the cavity is used to form an outdoor chair 60. Adopting a flip - flop die structure, the upper fixing plate 10 is provided with a glue inlet pipe 101. The glue inlet pipe 101 passes through the thimble plate 20, the fixed die insert 301, and the moving die plate 40 downward to the cavity. The hot melt adhesive enters the cavity from the glue inlet pipe 101. After forming, the glue inlet gate is at the bottom of the outdoor chair 60, avoiding multiple glue inlet gates on the product surface and improving the overall aesthetics.

[0031] Refer to Figures 3 - 5 As shown in the figure, both sides of the fixed die insert 301 protrude outward in an arc shape, and the corresponding two sides of the forming groove 401 are recessed in an arc shape. Specifically, usually, the product will deform during the cooling process after being separated from the mold. The two sides of the outdoor chair 60 will sink inward, resulting in product scrapping. In the utility model, when the mold is closed, the two sides of the fixed die insert 301 protrude outward in an arc shape and are placed in the two sides of the forming groove 401 that are recessed in an arc shape. After forming, the two sides of the outdoor chair 60 protrude outward in an arc shape. When the product cools and shrinks, the arc - shaped protrusions on both sides make the two sides of the outdoor chair 60 straight, avoiding the inward concave deformation during cooling caused by forming with straight sides.

[0032] Refer to Figures 3 - 5 As shown in the figure, the fixed die plate 30 is provided with ejector blocks 302 at the four corners of the fixed die insert 301. The bottom of the thimble plate 20 is installed with a first ejector rod 201, and the first ejector rod 201 is connected to the ejector block 302. Specifically, when the mold is opened, the fixed die plate 30 and the moving die plate 40 are separated, and the product stays on the fixed die insert 301. The thimble plate 20 pushes the first ejector rod 201 to push the ejector block 302 downward to push the four chair legs of the outdoor chair outside the mold, pushing the product to be demolded from the fixed die insert 301. Further, a water pipe 203 is arranged at the bottom of the thimble plate 20. The water pipe 203 is connected to the ejector block 302 through an ejector rod. When the mold is closed, water is injected into the ejector block 302 through the water pipe 203, which can accelerate the cooling of the product.

[0033] Refer to Figures 3 - 5 As shown in the figure, the fixed die insert 301 is further provided with a square block 303. The bottom of the thimble plate 20 is installed with a second ejector rod 202, and the second ejector rod 202 is connected to the square block 303. When the mold is opened, the thimble plate 20 pushes the second ejector rod 202 to push the square block 303, and the square block 303 pushes the product to be demolded from the fixed die insert 301, playing a role in demolding the product.

[0034] In addition, the moving template 40 is further provided with a water well. When the mold is closed for injection molding, coolant is injected into the water well, which plays a role in cooling and forming the moving template 40. Further, a number of cooling channels are provided inside the fixed template 30 and the moving template 40, and the cooling channels can accelerate and evenly cool the product.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A deep cavity inverted anti-deformation mold structure, characterized in that: It includes an upper fixed plate, an ejector plate, a fixed mold plate, a movable mold plate and a lower fixed plate from top to bottom. A fixed mold insert is embedded in the bottom of the fixed mold plate. A molding groove is opened on the movable mold plate. The bottom of the molding groove protrudes to form a convex block. The fixed mold insert is placed in the molding groove to form a molding cavity. The two sides of the fixed mold insert protrude outward in an arc shape, and the corresponding two sides of the molding groove are concave in an arc shape. The upper fixed plate is provided with a rubber inlet pipe, and the rubber inlet pipe passes downward through the ejector plate, the fixed mold insert and the movable mold plate to the cavity.

2. The deep cavity inverted anti-deformation mold structure according to claim 1, characterized in that: The fixed mold plate is provided with ejector blocks at four corners of the fixed mold insert respectively, and a first ejector rod is installed at the bottom of the ejector plate, and the first ejector rod is connected to the ejector block.

3. The deep cavity inverted anti-deformation mold structure according to claim 2, characterized in that: A water pipe is arranged at the bottom of the ejector plate, and the water pipe is connected to the ejector block through the ejector rod.

4. The deep cavity inverted anti-deformation mold structure according to claim 1, characterized in that: The fixed mold insert is further provided with a square block, a second ejector rod is installed at the bottom of the ejector plate, and the second ejector rod is connected to the square block.

5. The deep cavity inverted anti-deformation mold structure according to claim 1, characterized in that: The movable template is further provided with a water well.

6. The deep cavity inverted anti-deformation mold structure according to claim 1, characterized in that: A plurality of cooling channels are arranged inside the fixed die plate and the movable die plate.

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