A double-inclined top anti-sticking mold top block composite mold structure

Abstract

The utility model provides a kind of double oblique top anti-sticking mould ejector block composite die structure, including faceplate, movable template, fixed template, ejector plate and bottom plate, movable template bottom embeds upper die core, fixed template embeds lower die core, upper die core bottom is provided with forming groove, lower die core two sides are provided with oblique top block, oblique top block is inclined flat, lower die core upper end surface is provided with first forming gap, oblique top block side is provided with second forming gap, oblique top block bottom is provided with ejector rod, and ejector rod bottom end is arranged in ejector plate, and oblique top block is provided with secondary ejection structure.When clamping, the first forming gap forms the rib of inside top, and the second forming gap forms the rib of two sides;When opening mould, ejector plate pushes two oblique top blocks upward, and product is released from the first gap, and then the oblique top block secondary ejection structure is continuously pushed upward to push the rib of two sides in product from the second gap, and the utility model uses two oblique top blocks of flat, and oblique top space is sufficient, and secondary ejection structure makes the rib of two sides of product completely separate from oblique top block.

Description

Technical Field

[0001] This utility model relates to the field of molds, and more specifically, to a composite mold structure with double-sloping anti-stick mold top block. Background Technology

[0002] A mold is a tool used to create shaped products. Different shapes of molds are used to create products of different shapes, such as... Figure 1 The children's scooter seat shown is made of two-color injection molding. The seat part is made of TPU soft rubber, and the other parts are made of PP plastic material. Both ends of the seat are designed with an open structure. To prevent the seat from deforming during use, there are many ribs on both sides inside the seat, with a depth of up to 7.0mm. A large stroke angled ejector mechanism is required for demolding. However, the thickness of the angled ejector block is limited by the product structure, and the following problems exist during demolding. On the one hand, when the product is ejected, there is not enough space in the direction of the angled ejector, and the angled ejector block cannot be completely demolded. The product shrinkage is easy to trap the angled ejector, resulting in demolding difficulties, and even causing product tearing or mold damage. On the other hand, the gaps of the angled ejector block for forming ribs are deep and densely distributed, and the wrapping force on the angled ejector is large, making it impossible to achieve complete demolding. Utility Model Content

[0003] This utility model provides a double-sloping anti-sticking mold top block composite mold structure, which aims to solve the technical problems mentioned in the above technical background.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a double-sloping-top anti-sticking mold composite mold structure, including a panel, a moving template, a fixed template, an ejector plate, and a base plate. The bottom of the moving template is embedded with an upper mold core, and the fixed template is embedded with a lower mold core. The bottom of the upper mold core has a forming groove. Sloping ejector blocks are provided on both sides of the lower mold core along its length direction. The sloping ejector blocks are inclined and flat. A first forming gap is provided on the upper end face of the lower mold core, and a second forming gap is provided on the side of the sloping ejector blocks. An ejector rod is provided at the bottom of the sloping ejector blocks. The ejector rod slides downward through the fixed template and is set on the ejector plate. The sloping ejector blocks are provided with a secondary ejection structure.

[0005] Furthermore, the secondary ejection structure includes a urethane rubber disposed on one side of the inclined ejector block near the lower mold core, the urethane rubber being provided with a push rod, and clearance notches being opened on both sides of the lower mold core. One end of the push rod is placed in the clearance notch, and the other end can slide through the inclined ejector block.

[0006] Furthermore, a top plate extends downward from the bottom of the inclined top block, an inclined top seat is installed on the ejector plate, the top plate is slidably installed on the inclined top seat through the fixed template, and a coolant pipeline is provided inside the top plate.

[0007] Furthermore, the lower mold core is further provided with several ejector pins, the lower ends of which can slide through the fixed mold plate and connect to the ejector pin plate.

[0008] Furthermore, each of the inclined top blocks is provided with four pieces of urethane, and each piece of urethane is provided with a push rod.

[0009] Furthermore, the bottom of the ejector plate is provided with several rods, which can slide through the base plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model discloses a composite mold structure for a double-sloping anti-stick mold block, comprising a panel, a moving template, a fixed template, an ejector plate, and a base plate. An upper mold core is embedded in the bottom of the moving template, and a lower mold core is embedded in the fixed template. A forming groove is opened at the bottom of the upper mold core. Sloping ejector blocks are provided on both sides of the lower mold core along its length. The sloping ejector blocks are inclined and flat. A first forming gap is provided on the upper end face of the lower mold core, and a second forming gap is provided on the side of the sloping ejector blocks. An ejector rod is provided at the bottom of the sloping ejector blocks. The ejector rod slides downward through the fixed template and is set on the ejector plate. The sloping ejector blocks are provided with a secondary ejection structure. When the mold is closed, the forming groove is used to form the main body of the seat pad in the lower mold core. The first forming gap is used to form the inner top ribs, and the second forming gap is used to form the ribs on both sides. When the mold is opened, the upper mold core and the lower mold core separate. The ejector plate pushes the two inclined ejector blocks upward to push the product out of the first gap. Then, the inclined ejector blocks are pushed upward again to push the ribs on both sides of the product out of the second gap. This utility model uses two flat inclined ejector blocks to push the product from the inside. The inclined ejector space is sufficient. The secondary ejector structure makes the ribs on both sides of the product completely detach from the inclined ejector blocks, realizing the demolding of the product. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the seat cushion structure; Figure 2 This is a schematic diagram of the structure of the double-sloping anti-sticking mold top block composite mold of this utility model; Figure 3 This is a schematic diagram of the upper mold core structure of the double-sloping anti-sticking mold top block composite mold structure of this utility model; Figure 4 This is a schematic diagram of the lower mold core structure of the double-sloping anti-sticking mold top block composite mold structure of this utility model; Figure 5This is a schematic diagram of the clearance notch of the lower mold core in the double-sloping anti-stick mold top block composite mold structure of this utility model; Figure 6 This is a schematic diagram of the inclined top block structure of the double inclined top anti-stick mold composite mold structure of this utility model; Figure 7 This is a schematic diagram of the inclined top block structure at another angle of the composite mold structure of the double inclined top anti-stick mold block of this utility model; Figure 8 This is a partial cross-sectional view of the composite mold structure of the double-sloping anti-stick mold top block of this utility model.

[0013] Explanation of main component symbols 10. Panel; 20. Moving template; 201. Upper mold core; 2011. Forming groove; 30. Fixed mold plate; 301. Lower mold core; 3011. First forming gap; 3012. Avoidance notch; 302. Angled ejector block; 3021. Second forming gap; 3022. Polyurethane rubber; 3023. Ejector pin; 40. Ejector plate; 401. Ejector rod; 402. Ejector plate; 50. Base plate; 60. Seat cushion; 601. Ribs. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0017] Example Reference Figure 2 As shown, this utility model discloses a cover forming mold, including a panel 10, a moving template 20, a fixed template 30, an ejector plate 40 and a base plate 50. The bottom of the moving template 20 is fitted with an upper mold core 201, and the fixed template 30 is fitted with a lower mold core 301. The bottom of the upper mold core 201 has a forming groove 2011. When the mold is closed, the forming groove 2011 covers the lower mold core 301 to form the main body of the seat pad 60.

[0018] Reference Figure 3-8 As shown, inclined ejector blocks 302 are provided on both sides of the lower mold core 301 along its length. The inclined ejector blocks 302 are inclined and flat. A first forming gap 3011 is provided on the upper surface of the lower mold core 301, and a second forming gap 3021 is provided on the side of the inclined ejector blocks 302. An ejector rod 401 is provided at the bottom of the inclined ejector blocks 302. The ejector rod 401 slides downward through the fixed template 30 and is set on the ejector plate 40. Specifically, when the mold is closed, the first forming gap 3011 is used to form the ribs 601 at the top inside the seat pad 60, and the second forming gap 3021 is used to form the ribs 601 on both sides inside the seat pad 60. When the mold is opened, the ejector plate 40 pushes the ejector rod 401 upward, and the ejector rod 401 pushes the inclined ejector blocks 302 to move the product upward, so that the ribs 601 at the top inside the seat pad 60 leave the first forming gap 3011 of the mold core. In this utility model, the inclined ejector blocks 302 with flat sides are used, and the inclined ejector space is sufficient.

[0019] Furthermore, the lower mold core 301 is further provided with several ejector pins. The lower end of the ejector pins can slide through the fixed mold plate 30 and connect to the ejector plate 40. When the mold is opened, the ejector plate 40 pushes the ejector rod 401 and pushes the ejector pin upward to push the seat pad 60, which plays an auxiliary role in demolding.

[0020] Reference Figure 3-8 As shown, the inclined ejector block 302 is equipped with a secondary ejection structure. Specifically, the secondary ejection structure includes a urethane rubber 3022 located on one side of the inclined ejector block 302 near the lower mold core 301. A push rod 3023 is mounted on the urethane rubber 3022. The lower mold core 301 has clearance notches 3012 on both sides. One end of the push rod 3023 is placed in the clearance notch 3012, and the other end can slide through the inclined ejector block 302. In the mold-closed state, the push rod 3023 is positioned in the clearance notch 3012. The clearance notch is L-shaped. The inclined ejector block 302 is pushed upwards a short distance, at which point one end of the push rod 3023 is positioned in the clearance notch. With notch 3012, the mold core does not squeeze the push rod 3023. When the rib 601 on the top of the seat pad 60 comes out from the first molding gap 3011, the mold core will squeeze the push rod 3023 as the continuously pushing inclined ejector block 302 moves upward. The push rod 3023 extends and pushes the ribs 601 on both sides inside the seat pad 60 to come out from the second molding gap 3021. Using urethane 3022 instead of springs solves the problem that the thickness of the inclined ejector is insufficient to install the traditional secondary ejection structure. The structure is compact and has stable elastic performance, without the need to expand the mold space.

[0021] In this embodiment, each inclined top block 302 is provided with four pieces of urethane 3022, and each urethane 3022 is provided with a push rod 3023. The four push rods 3023 are evenly distributed in the inclined top block 302, and simultaneously push the inner two sides of the seat cushion 60 ribs 601, so that the force is evenly distributed.

[0022] Reference Figure 3-8 As shown, the bottom of the inclined ejector block 302 extends downward to form a top plate 402. An inclined ejector seat is installed on the ejector plate 40. The top plate 402 can slide through the fixed template 30 and is installed on the inclined ejector seat. Coolant pipes are provided inside the top plate 402. The coolant pipes lead to the inclined ejector block 302 to ensure uniform product molding temperature, further reduce shrinkage deformation, and at the same time take into account the structural strength of the inclined ejector and improve the service life of the mold.

[0023] In this embodiment, a plurality of rods are provided at the bottom of the ejector plate 40. The rods can slide through the bottom plate 50 and push the ejector plate 40 upward.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A composite mold structure with double-sloping anti-sticking top block, characterized in that: The device includes a panel, a moving template, a fixed template, an ejector plate, and a base plate. The moving template has an upper mold core embedded at its bottom, and the fixed template has a lower mold core embedded therein. The upper mold core has a forming groove at its bottom. The lower mold core has inclined ejector blocks on both sides along its length. The inclined ejector blocks are inclined and flat. The upper surface of the lower mold core has a first forming gap, and the side of the inclined ejector blocks has a second forming gap. The bottom of the inclined ejector blocks has an ejector rod that can slide downward through the fixed template and is mounted on the ejector plate. The inclined ejector blocks have a secondary ejection structure.

2. The composite mold structure of the double-sloping anti-sticking mold top block according to claim 1, characterized in that: The secondary ejection structure includes a urethane rubber set on one side of the inclined ejector block near the lower mold core. The urethane rubber is equipped with a push rod. The lower mold core has clearance notches on both sides. One end of the push rod is placed in the clearance notch, and the other end can slide through the inclined ejector block.

3. The composite mold structure of the double-sloping anti-sticking mold top block according to claim 1, characterized in that: The bottom of the inclined top block extends downward to form a top plate, and an inclined top seat is installed on the ejector plate. The top plate is slidably installed on the inclined top seat through the fixed template, and a coolant pipeline is provided inside the top plate.

4. The composite mold structure of the double-sloping anti-sticking mold top block according to claim 1, characterized in that: The lower mold core is further provided with several ejector pins, the lower ends of which can slide through the fixed mold plate and connect to the ejector pin plate.

5. The composite mold structure of the double-sloping anti-sticking mold top block according to claim 2, characterized in that: Each inclined top block is equipped with four pieces of urethane, and each piece of urethane is equipped with a push rod.

6. The composite mold structure of the double-sloping anti-sticking mold top block according to claim 1, characterized in that: The bottom of the ejector plate is provided with several rods, which can slide through the base plate.

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