A draw hook type inclined roof stripping mechanism

Abstract

The utility model discloses a kind of pull hook type inclined roof stripping mechanisms, comprising: inclined block, it is obliquely slidably arranged in the movable groove of mould core, its bottom can be laterally slidably butted with ejector pin, its surface is provided with several split grooves, the inside of split groove is provided with through-hole passing through inclined block;Pull hook block, it can be obliquely slidably embedded split groove on the surface of inclined block, its surface is smoothly butted with the surface of inclined block and is matched with the surface of product, its inside is butted with connecting rod, connecting rod passes through through-hole, locating block is arranged in movable groove, bayonet on the side of connecting rod and the broken line guide strip on the side of locating block are slidably butted. The utility model can solve the problem that the demoulding mechanism of existing injection mould demoulds when side core-pulling slider pulling resistance is large, product can be deformed greatly even partial rupture, and lead to the problem of low demoulding efficiency, demoulding quality.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically a hook-type inclined ejector demolding mechanism. Background Technology

[0002] Products such as car bumpers require side core-pulling during injection molding due to their undercut structures to prevent interference between components during demolding. However, existing injection mold side core-pulling demolding mechanisms use a single-step method, where the side core-pulling slider is pulled back laterally to completely detach from the product's side. When using this method, if the contact area between the product and the side core-pulling slider is large and the fit is tight, the pulling resistance of the slider during demolding is high, leading to significant product deformation or even localized breakage, resulting in low demolding efficiency and quality. Utility Model Content

[0003] The purpose of this utility model is to solve the problem that the side core-pulling slider has high pulling resistance during demolding of existing injection molds, which causes large deformation or even local cracking of the product, resulting in low demolding efficiency and quality. Therefore, a hook-type inclined ejector demolding mechanism is provided.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a hook-type inclined ejector mechanism, comprising:

[0005] An inclined ejector block is slidably arranged in the movable groove of the mold core. Its bottom can be slidably connected to the ejector pin. Several splicing grooves are provided on its surface. Through holes penetrating the inclined ejector block are provided on the inner side of the splicing grooves.

[0006] A hook block is slidably embedded in the splicing groove on the surface of the inclined top block. Its surface smoothly mates with the surface of the inclined top block and matches the surface of the product. Its inner side mates with a connecting rod that passes through the through hole. A positioning block is provided in the movable groove. The bayonet on the side of the connecting rod slidably mates with the zigzag guide strip on the side of the positioning block.

[0007] As a further description of the above technical solution:

[0008] The bottom surface of the movable groove is provided with a positioning groove, the positioning block is arranged in the positioning groove, and the connecting rod is slidably disposed in the positioning groove.

[0009] As a further description of the above technical solution:

[0010] The bottom surface of the movable groove and the side surface of the inclined top block are both provided with wedge-shaped guide surfaces that fit together.

[0011] As a further description of the above technical solution:

[0012] Guide grooves are inclinedly arranged on both sides of the movable groove, and the protrusions on the side of the inclined top block slide and connect with the guide grooves.

[0013] As a further description of the above technical solution:

[0014] The zigzag guide bar includes a vertically extending vertical section and an inclined section arranged at an angle. The vertical and inclined sections are staggered and connected as a whole.

[0015] In summary, by adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0016] In use, the hook-type inclined ejector demolding mechanism of this utility model lifts the inclined ejector block and tilts it for sliding. The hook block, guided by the vertical section of the zigzag guide bar, moves vertically and supports the product, causing the inclined ejector block to detach from the product, achieving initial side core pulling on the inner side of the product. Subsequently, guided by the inclined section, the hook block is pulled inward, and its outer surface simultaneously pulls inward on the inner side of the product. After moving a certain distance, the two separate. Through the two-stage side core pulling of the hook-type inclined ejector structure described above, the driving resistance of the mold structure is small during demolding, the product deformation is small, and the demolding efficiency and demolding quality are high. Attached Figure Description

[0017] 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 on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a hook-type inclined ejector mechanism.

[0019] Figure 2 This is an exploded view of a hook-type inclined ejector mechanism.

[0020] Figure 3 This is an exploded view of the hook block in a hook-type inclined ejector demolding mechanism.

[0021] Legend:

[0022] 1. Angled ejector block; 2. Mold core; 3. Movable groove; 4. Assembly groove; 5. Through hole; 6. Hook block; 7. Connecting rod; 8. Positioning block; 9. Bayonet; 10. Folded guide bar; 11. Positioning groove; 12. Wedge-shaped guide surface; 13. Vertical section; 14. Inclined section; 100. Product. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a hook-type inclined ejector demolding mechanism, comprising:

[0026] An inclined ejector block 1 is inclined and slidably arranged in the movable groove 3 of the mold core 2. Its bottom can be slidably connected to the ejector pin. Several splicing grooves 4 are provided on its surface. A through hole 5 is provided on the inner side of the splicing groove 4 through the inclined ejector block 1.

[0027] The hook block 6 is inclined and slidably embedded in the splicing groove 4 on the surface of the inclined top block 1. Its surface is smoothly connected to the surface of the inclined top block 1 and matches the surface of the product 100. Its inner side is connected to the connecting rod 7. The connecting rod 7 passes through the through hole 5. The positioning block 8 is provided in the movable groove 3. The bayonet 9 on the side of the connecting rod 7 is slidably connected to the zigzag guide strip 10 on the side of the positioning block 8.

[0028] The bottom surface of the movable groove 3 is provided with a positioning groove 11, the positioning block 8 is arranged in the positioning groove 11, and the connecting rod 7 is slidably arranged in the positioning groove 11 to improve the stability of the hook block 6 sliding laterally synchronously with the lifting and lowering of the inclined top block 1.

[0029] The bottom surface of the movable groove 3 and the side surface of the inclined top block 1 are both provided with wedge-shaped guide surfaces 12 that fit together. Guide grooves are inclined on both sides of the movable groove 3, and the protrusions on the side of the inclined top block 1 slide and engage with the guide grooves.

[0030] The zigzag guide bar 10 includes a vertically extending vertical section 13 and an inclined section 14, which are staggered and connected as a whole.

[0031] The working principle of the hook-type inclined ejector demolding mechanism in this embodiment includes: During use, the ejector plate is driven to move, causing the ejector pins on it to move (both are conventional structures and not shown in the figure). The ejector pins lift the inclined ejector block 1, causing it to slide at an angle. The hook block 6, guided by the vertical section 13 of the zigzag guide bar 10, moves vertically and supports the product 100, causing the inclined ejector block 1 to detach from the product 100, achieving initial side core pulling on the inner side of the product 100. Subsequently, guided by the inclined section 14, the hook block 6 is pulled inward, and its outer surface simultaneously pulls inward towards the inner side of the product 100. After moving a certain distance, the two separate. Through the two-stage side core pulling of the hook-type inclined ejector structure described above, the driving resistance of the mold structure is small during demolding, product deformation is small, and demolding efficiency and quality are high.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hook-type inclined ejector demolding mechanism, characterized in that, include: An inclined ejector block is slidably arranged in the movable groove of the mold core. Its bottom can be slidably connected to the ejector pin. Several splicing grooves are provided on its surface. Through holes penetrating the inclined ejector block are provided on the inner side of the splicing grooves. A hook block is slidably embedded in the splicing groove on the surface of the inclined top block. Its surface smoothly mates with the surface of the inclined top block and matches the surface of the product. Its inner side mates with a connecting rod that passes through the through hole. A positioning block is provided in the movable groove. The bayonet on the side of the connecting rod slidably mates with the zigzag guide strip on the side of the positioning block.

2. The hook-type inclined ejector demolding mechanism according to claim 1, characterized in that, The bottom surface of the movable groove is provided with a positioning groove, the positioning block is arranged in the positioning groove, and the connecting rod is slidably disposed in the positioning groove.

3. The hook-type inclined ejector demolding mechanism according to claim 1, characterized in that, The bottom surface of the movable groove and the side surface of the inclined top block are both provided with wedge-shaped guide surfaces that fit together.

4. The hook-type inclined ejector demolding mechanism according to claim 1, characterized in that, Guide grooves are inclinedly arranged on both sides of the movable groove, and the protrusions on the side of the inclined top block slide and connect with the guide grooves.

5. The hook-type inclined ejector demolding mechanism according to claim 1, characterized in that, The zigzag guide bar includes a vertically extending vertical section and an inclined section arranged at an angle. The vertical and inclined sections are staggered and connected as a whole.

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