Injection molding module ejection structure

Abstract

The utility model discloses an ejection structure of an injection molding module in the technical field of injection molds, and aims to solve the problem in the separation process of a product and a pitched roof in the prior art. The ejection mechanism comprises a linear mechanism, a straight ejector, an inclined ejector and a male mold plate, a male mold core is arranged on the male mold plate; a displacement groove is formed between the core insert and the core plate; the linear mechanism is arranged on the male mold plate and is connected with the push plate; the convex block of the straight ejector is movably inserted into the open hole of the inclined ejector, so that the inclined ejector moves back and forth relative to the straight ejector; a straight matching groove and an inclined matching groove which are through up and down are formed in the male mold core; the straight ejector and the inclined ejector are jointly matched and correspondingly inserted into the straight matching groove and the inclined matching groove, and at least the bottom end of the inclined ejector extends into the displacement groove to be connected with the push block through a connecting block. The inclined ejector is suitable for injection molding products, can facilitate automatic separation of the products and the inclined ejector, and improves the yield of the products.

Description

Technical Field

[0001] The utility model relates to an injection molding module ejection structure, belonging to the technical field of injection molding molds. Background Art

[0002] Injection molding involves heating raw materials such as plastics to a molten state, injecting them into a mold of the desired shape at high speed and high pressure, and then cooling and heating them to produce a solidified product. This method is suitable for mass production of complex-shaped parts and is a key manufacturing method.

[0003] As the performance and types of injection molding raw materials continue to improve and expand, the process of replacing steel and wood with plastic in various industries will be further accelerated, and the proportion of plastics and plastics is increasing. This shows the huge market demand for injection molding products and its important share in contemporary industry. Similarly, people have become particularly concerned about injection molds. People are more concerned about a series of higher requirements such as the use effect, production efficiency, and product quality of injection molds.

[0004] Every injection molding mold has an ejector system. When a product has an undercut, the ejector system includes a beveled ejector. This is especially true for long, rectangular products, which can easily adhere to the beveled ejector, causing deformation and scratches. If the product adheres to the beveled ejector, the robot cannot remove the part. In this case, manual separation of the product from the beveled ejector is required after ejection. This not only increases labor and production costs, but also reduces production efficiency and wastes machine utilization. Furthermore, deformation and scratches can create an unsightly appearance, failing to meet product quality requirements. This paper addresses these issues that arise when ejecting long, rectangular products using a beveled ejector.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an injection molding module ejection structure. The ejection structure is simple in structure, facilitates the auxiliary inclined ejection and separation of products, and prevents deformation and scratches on the products.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] The utility model provides an injection molding module ejection structure, comprising a linear mechanism, a straight ejector, an inclined ejector and a male mold plate; the male mold plate is provided with a male mold core; a displacement groove is formed between the male mold core and the male mold plate; the linear mechanism is provided on the male mold plate and connected to the push plate;

[0009] The protruding block of the straight top is movably inserted into the opening hole of the oblique top, so that the oblique top can move forward and backward relative to the straight top; the male mold core is provided with a straight matching groove and an oblique matching groove that pass through from top to bottom; the straight top and the oblique top are matched and inserted into the straight matching groove and the oblique matching groove respectively, and at least the bottom end of the oblique top extends into the displacement groove and is connected to the push block through the connecting block;

[0010] When the linear mechanism drives the push plate to move upward, the straight top and the inclined top move upward together to lift the product in the male mold core; at the same time, the inclined top moves backward relative to the straight top along the guiding effect of the opening hole, so that the inverted position on the inclined top is disengaged from the buckle on the product.

[0011] Furthermore, a first plug-in block is provided at the front end of the connecting block, and the rear end is screwed to the push plate through bolts; a first plug-in slot is provided at the bottom end of the inclined top; and the first plug-in block is plugged into the first plug-in slot.

[0012] Furthermore, the linear mechanism is an oil cylinder, the oil cylinder is fixed on the male template, and the piston rod is fixedly connected to the push block.

[0013] Furthermore, a joint is provided at the upper end of the piston rod; and the second plug-in block passes through the joint and is fixed on the push plate.

[0014] Furthermore, a hot runner plate and a lower fixed plate are sequentially provided below the male template; a mounting groove is provided on the hot runner plate; the oil cylinder is placed on the mounting groove, and the bolts are fixed to the male template through the oil cylinder.

[0015] Furthermore, a limit groove in the shape of an inverted convex character is provided longitudinally through the push block; a T-shaped limit sleeve is inserted into the limit groove and fixedly connected to the male template, so that the linear mechanism pushes the push block to move upward along the T-shaped limit sleeve to a preset stroke and then is limited.

[0016] Furthermore, the preset stroke is 40 cm.

[0017] Furthermore, the preset stroke is the same as the displacement stroke of the inclined top moving up and down relative to the displacement groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present application provides an injection molding module ejection structure, in which a straight fitting groove and an oblique fitting groove are provided on the male mold core, so as to facilitate the corresponding matching and movably connected straight top and oblique top to slide up and down; when the linear mechanism drives the push block to move upward, the push block drives the oblique top to move upward in the displacement groove through the connecting block, so that the straight top and the oblique top eject the product upward at the same time. The oblique top continues to eject upward, and due to the action of the inclined oblique fitting groove, the oblique top moves obliquely upward, so that the opening hole of the oblique top moves backward relative to the protruding block of the straight top. At this time, the straight top continues to push the product longitudinally, and the undercut on the oblique top in the horizontal direction is separated from the buckle of the product, and moves away from the buckle of the product, so that the oblique top and the product are separated during the ejection process, preventing the product from being deformed and scratched by manual removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of an injection molding module ejection structure provided by the utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the coordinated installation of the straight top and the inclined top;

[0022] Figure 3 yes Figure 2 Schematic diagram of the straight top and the slanted top from another angle;

[0023] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle lifting product;

[0024] In the figure: 1. Linear mechanism; 2. Straight ejector; 3. Oblique ejector; 4. Male mold plate; 5. Male mold core; 6. Push plate; 7. Connecting block; 8. Raised block; 9. Opening hole; 10. Straight fitting groove; 11. Oblique fitting groove; 12. Displacement groove; 13. Inverted position; 14. Buckle; 15. First plug-in block; 16. First plug-in groove; 17. Cylinder; 18. Connector; 19. Second plug-in block; 20. Hot runner plate; 21. Lower fixing plate; 22. Mounting groove; 23. Limiting groove; 24. T-type limiting sleeve; 25. Positioning key; 26. Product. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] See Figures 1 to 4This embodiment provides an injection molding module ejection structure, comprising a linear mechanism 1, a straight ejector 2, an inclined ejector 3, and a core plate 4. The core plate 4 is provided with a core 5. A displacement slot 12 is formed between the core 5 and the core plate 4 below, creating a displacement space for the subsequent upward and downward movement of the inclined ejector 3. The linear mechanism 1 is mounted on the core plate 4 and connected to a push plate 6, which is used to propel the push plate 6 up and down.

[0027] like Figure 2 and Figure 3 The straight top 2 is set on one side of the inclined top 3, and the raised block 8 of the straight top 2 is movably inserted into the opening hole 9 provided on the inclined top 3. The opening hole 9 of the inclined top 3 can move forward and backward along the raised block 8 provided on the straight top 2. The male mold core 5 is provided with a straight matching groove 10 and an oblique matching groove 11 that pass through from top to bottom. During installation, the straight top 2 can be movably installed in the straight matching groove 10, and the corresponding inclined top 3 is matched and inserted with the straight top 2, and is movably installed in the oblique matching groove 11. The bottom end of the inclined top 3 installed on the male mold core 5 extends into the displacement groove 12 and is connected through the connecting block 7 and the push block.

[0028] Combine Figure 4 When the linear mechanism 1 is controlled to drive the push plate 6 to move upward, the push plate 6 drives the connecting block 7 to act on the inclined top 3 to move upward. Since the straight top 2 and the inclined top 3 are in a mating plug-in relationship, the straight top 2 and the inclined top 3 move upward together to lift the product 26 in the male mold core 5. While moving upward, since the inclined top 3 moves upward at an angle, the inclined top 3 moves backward relative to the straight top 2 along the guiding effect of the opening hole 9, so that the inverted position 13 on the inclined top 3 is separated from the buckle 14 on the product 26. Compared with the existing structure, which only has the inclined top 3 to push upward and manually separates the inverted position 13 on the inclined top 3 from the plug-in relationship of the buckle 14 on the product 26, it is easy to cause damage, deformation or scratches to the product 26 during the separation process, affecting the yield rate of the product 26. The present application can reduce labor input and improve the yield rate of some products 26 lifted by the inclined top 3.

[0029] In some embodiments, as Figure 2 The front end of the connecting block 7 is equipped with a first plug-in block 15. The rear end of the connecting block 7 is screwed to the push plate 6 via bolts. A first plug-in slot 16 is defined at the bottom end of the inclined roof 3. During installation, the first plug-in block 15 is inserted into the first plug-in slot 16. The push block moves up and down, driving the connecting block 7 up and down, which in turn drives the inclined roof 3 up and down. This configuration of the connecting block 7 facilitates assembly and disassembly of components, improving disassembly and repair efficiency.

[0030] In some implementations, such as Figure 1The linear mechanism 1 employs a hydraulic cylinder 17 mounted on one side of the male plate 4, with the piston rod and push block fixedly connected. Furthermore, a joint 18 is mounted on the piston rod, and a second plug-in block 19 passes through the joint 18 and is inserted into the push plate 6. Installing the joint 18 reduces damage to the piston rod caused by frequent disassembly, assembly, and maintenance.

[0031] In some embodiments, a hot runner plate 20 and a lower fixing plate 21 are sequentially disposed below the male plate 4. A mounting slot 22 is defined in the hot runner plate 20. The bottom of the oil cylinder 17 rests on this mounting slot 22 for positioning, improving the stability of the oil cylinder 17 during expansion and contraction. Bolts passing vertically through the oil cylinder 17 secure it to the male plate 4, ensuring a stable connection in both vertical and horizontal directions.

[0032] In some embodiments, as Figure 1 The push block is provided with an inverted convex-shaped limit groove 23 running longitudinally through it, and a T-shaped limit sleeve 24 is provided to cooperate with it. This T-shaped limit sleeve 24 is inserted into the limit groove 23 and is fixedly connected to the male mold plate 4 below. The push block moves up and down along the T-shaped limit sleeve 24 within a preset travel range. This not only provides vertical guidance for the push block's up and down movement, but also limits the travel range, improving the efficiency of ejecting the product 26. The preset travel range in this application is 40 cm.

[0033] In some embodiments, in order to ensure the accuracy of ejection of the product 26, the preset stroke is set to be the same as the displacement stroke of the inclined ejector 3 moving up and down relative to the displacement groove 12, so as to ensure the best ejection effect of the product 26.

[0034] In some embodiments, a positioning key 25 is provided between the linear mechanism 1 and the male plate 4 to ensure that the linear mechanism 1 can be accurately installed on the male plate 4 .

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An injection molding module ejection structure, characterized in that: It includes a linear mechanism, a straight top, an inclined top and a male mold plate; the male mold plate is provided with a male mold core; a displacement groove is formed between the male mold core and the male mold plate; the linear mechanism is provided on the male mold plate and connected to the push plate; The protruding block of the straight top is movably inserted into the opening hole of the inclined top, so that the inclined top can move forward and backward relative to the straight top; the male mold core is provided with a straight matching groove and an oblique matching groove that pass through from top to bottom; the straight top and the inclined top are matched and inserted into the straight matching groove and the oblique matching groove respectively, and at least the bottom end of the inclined top extends into the displacement groove and is connected to the push block through the connecting block; When the linear mechanism drives the push plate to move upward, the straight top and the inclined top move upward together to lift the product in the male mold core; at the same time, the inclined top moves backward relative to the straight top along the guiding effect of the opening hole, so that the inverted position on the inclined top is disengaged from the buckle on the product.

2. The injection molding module ejection structure according to claim 1, characterized in that: The front end of the connecting block is provided with a first plug-in block, and the rear end is screwed to the push plate through bolts; the bottom end of the inclined top is provided with a first plug-in slot; the first plug-in block is plugged into the first plug-in slot.

3. The injection molding module ejection structure according to claim 1, characterized in that: The linear mechanism is an oil cylinder, which is fixed on the male template, and a piston rod is fixedly connected to the push block.

4. The injection molding module ejection structure according to claim 3, characterized in that: A joint is provided at the upper end of the piston rod; and a second plug-in block passes through the joint and is fixed on the push plate.

5. The injection molding module ejection structure according to claim 3, characterized in that: A hot runner plate and a lower fixed plate are sequentially arranged below the male plate; a mounting groove is arranged on the hot runner plate; the oil cylinder is placed on the mounting groove, and bolts are fixed to the male plate through the oil cylinder.

6. The injection molding module ejection structure according to claim 1 or 3, characterized in that: The push block is provided with an inverted convex limit groove running through the longitudinal direction; the T-shaped limit sleeve is inserted into the limit groove and fixedly connected to the male template, so that the linear mechanism pushes the push block to move upward along the T-shaped limit sleeve to a preset stroke and then is limited.

7. The injection molding module ejection structure according to claim 6, characterized in that: The preset stroke is 40 cm.

8. The injection molding module ejection structure according to claim 6, characterized in that: The preset stroke is the same as the displacement stroke of the inclined top moving up and down relative to the displacement slot.

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