Injection mold for injection molding machine

Abstract

The utility model belongs to the field of injection molds, and particularly relates to an injection mold for an injection molding machine, which is used for injecting raw materials to form injection molding parts and comprises a movable mold plate and a stationary mold plate. A cavity is formed between the movable mold plate and the fixed mold plate, a pouring opening is formed in the upper end of the movable mold plate and communicated with the cavity, a bottom plate is arranged on the lower side of the fixed mold plate, and a lifting plate capable of moving up and down is arranged between the bottom plate and the fixed mold plate. An inclined first ejector pin is arranged on the lifting plate, a sliding block capable of sliding left and right is arranged in the fixed mold plate, and the first ejector pin penetrates through the sliding block to eject out a formed injection molding part in the mold cavity. A guide column is arranged at the lower end of the movable mold plate, a pressing plate capable of sliding left and right is arranged at the corresponding position of the fixed mold plate, and the guide column extends into the pressing plate and is in sliding connection with the pressing plate. The sliding connection of the guide pillar and the pressing plate ensures the stability and accuracy of the movement of the movable mold plate, simplifies the operation process of the mold, and improves the production efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of injection molds, and in particular relates to an injection mold for an injection molding machine. Background Art

[0002] In the field of injection molding technology, injection molds are one of the key equipment for manufacturing plastic products. Traditional injection molds usually consist of a movable mold plate and a fixed mold plate, which form a cavity through relative movement. Molten plastic raw material is then injected into the cavity, and after cooling and solidification, the injection molded part is formed. However, traditional molds often rely on a single ejector system during the demolding process. This system is prone to problems such as incomplete demolding, deformation or damage of injection molded parts when faced with complex structures or large depths. In addition, the complexity of the mold structure increases the difficulty and cost of manufacturing, and also affects the maintenance and care of the mold. Therefore, the market is in urgent need of a new type of injection mold that is efficient and stable. Summary of the Invention

[0003] The purpose of the utility model is to provide an injection mold for an injection molding machine, aiming to solve the above problems.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an injection mold for an injection molding machine, which is used for injecting raw materials to form injection molded parts, and includes a movable dynamic mold plate and a stationary fixed mold plate. A cavity is formed between the dynamic mold plate and the fixed mold plate, and a pouring port is provided at the upper end of the dynamic mold plate, which is connected to the cavity. A bottom plate is provided on the lower side of the fixed mold plate, and a lifting plate that can move up and down is provided between the bottom plate and the fixed mold plate. An inclined first ejector is provided on the lifting plate, and a slider that can slide left and right is provided in the fixed mold plate. The first ejector passes through the slider to eject the molded injection molded part in the cavity. A guide column is provided at the lower end of the dynamic mold plate, and a pressure plate that can slide left and right is provided at the corresponding position of the fixed mold plate. The guide column extends into the pressure plate and is slidably connected to it.

[0005] Furthermore, a hollow support frame is provided between the fixed template and the base plate; a vertically upward support column is provided at the upper end of the base plate, and the support column passes through the support frame, the fixed template and the movable template in sequence, and is connected to the movable template in a limiting manner.

[0006] Furthermore, the inclination angle of the first ejector pin is within the range of 0 to 45 degrees.

[0007] Furthermore, a second vertical ejector is provided on the lifting plate, and the second ejector passes through the fixed mold plate to eject the molded injection molded part in the cavity.

[0008] Furthermore, driving components are provided at the front and rear ends of the fixed template, and the driving ends of the driving components are connected to the lifting plate, so that the lifting plate performs lifting motion.

[0009] Furthermore, the driving end of the driving component is connected to a connecting rod, which is provided with a clamping piece. A lifting plate for supporting is provided between the lifting plate and the base plate. The clamping piece is clamped with the lifting plate. When the driving component drives the lifting plate, the lifting plate drives the base plate to move up and down.

[0010] Furthermore, a top cover is provided at the upper end of the movable template, and a heat insulation plate for isolating the temperature is provided between the top cover and the movable template.

[0011] Furthermore, a water collector is provided on the outer wall of the movable template, and a plurality of cooling pipes are provided in the movable template. The water collector is connected to the cooling pipes to cool the movable template.

[0012] Furthermore, a circulation pipe connected to the pouring port is provided in the movable template, the lower end of the circulation pipe is connected to a plurality of pouring pipes, and the outlet end of the pouring pipe is connected to the mold cavity.

[0013] The above one or more technical solutions in the injection mold for the injection molding machine provided by the embodiment of the utility model have at least the following technical effects:

[0014] In this design, the movable platen moves downward and closes with the fixed platen to form a closed cavity. Molten plastic raw material is injected into the cavity through the pouring port. After the plastic cools and solidifies, the lifting plate rises, driving the inclined first ejector pin to move upward, while pushing the slider to slide to one side to eject the injection molded part from the cavity. The movable platen is separated from the fixed platen, and the injection molded part is taken out. The design of the lifting platen and slider simplifies the mold structure, reduces the difficulty and cost of manufacturing, and improves the reliability and durability of the mold. The design of the lifting platen and slider simplifies the mold structure, reduces the difficulty and cost of manufacturing, and improves the reliability and durability of the mold. The sliding connection between the guide column and the pressure plate ensures the smooth and precise movement of the movable platen, simplifies the operation process of the mold, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a structural diagram of an injection mold for an injection molding machine provided in an embodiment of the utility model.

[0017] Figure 2 This is a front view of an injection mold for an injection molding machine provided in an embodiment of the utility model.

[0018] Description of the main reference numerals: 100, movable template; 110, fixed template; 120, mold cavity; 130, pouring port; 140, bottom plate; 150, lifting plate; 160, first ejector pin; 170, slider; 180, guide column; 190, pressure plate;

[0019] 200. Support frame; 210. Support column; 220. Second ejector pin; 230. Drive assembly; 240. Connecting rod; 250. Snap-fit ​​part; 260. Lifting plate; 270. Top cover; 280. Cooling pipe; 290. Circulating pipe; 300. Casting pipe. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention in detail. Figures 1-2 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1-2 The described embodiments are exemplary and are intended to explain the embodiments of the present invention, but should not be understood as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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 a limitation on the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0023] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0024] In an embodiment of the present invention, a mold for an injection molding machine is provided for injecting raw materials to form molded parts. The mold comprises a movable platen 100 and a stationary fixed platen 110. A cavity 120 is formed between the movable platen 100 and the fixed platen 110. A pouring spout 130 is provided at the upper end of the movable platen 100, communicating with the cavity 120. A base plate 140 is provided on the lower side of the fixed platen 110. A lift plate 150 is provided between the base plate 140 and the fixed platen 110, capable of moving up and down. An inclined first ejector pin 160 is mounted on the lift plate 150. A sliding block 170 is provided within the fixed platen 110, capable of sliding left and right. The first ejector pin 160 passes through the slider 170 to eject the molded part from the cavity 120. A guide post 180 is provided at the lower end of the movable platen 100. A sliding pressure plate 190 is provided at a corresponding position on the fixed platen 110. The guide post 180 extends into and is slidably connected to the pressure plate 190.

[0025] Specifically, the movable plate 100 moves downward and closes with the fixed plate 110 to form a closed mold cavity 120. Molten plastic raw material is injected into the mold cavity 120 through the pouring port 130. After the plastic cools and solidifies, the lifting plate 150 rises, driving the inclined first ejector 160 to move upward, while pushing the slider 170 to slide to one side to eject the injection molded part from the mold cavity 120. The movable plate 100 is separated from the fixed plate 110, and the injection molded part is taken out. The design of the lifting plate 150 and the slider 170 simplifies the mold structure, reduces the manufacturing difficulty and cost, and improves the reliability and durability of the mold. The design of the lifting plate 150 and the slider 170 simplifies the mold structure, reduces the manufacturing difficulty and cost, and improves the reliability and durability of the mold. The sliding connection between the guide column 180 and the pressure plate 190 ensures the smooth and precise movement of the movable plate 100, simplifies the operation process of the mold, and improves production efficiency.

[0026] In another embodiment of the utility model, a hollow support frame 200 is provided between the fixed platen 110 and the base plate 140. A vertically extending support column 210 is provided at the upper end of the base plate 140. The support column 210 passes through the support frame 200, the fixed platen 110, and the movable platen 100 in sequence, and is fixedly connected to the movable platen 100. Specifically, the movable platen 100 is provided with corresponding retaining grooves, into which the support columns 210 extend, forming a stable structural system for the mold, effectively preventing the mold from shifting or shaking during the injection and demolding processes, and improving the quality of the injection molded parts and production efficiency.

[0027] In another embodiment of the utility model, the tilt angle of the first ejector pin 160 is within a range of 0 to 45 degrees. Specifically, within this range, the first ejector pin 160 has a high stability.

[0028] In another embodiment of the utility model, a second vertical ejector pin 220 is mounted on the lifting plate 150. The second ejector pin 220 penetrates the fixed mold plate and ejects the molded part from the mold cavity 120. Specifically, the second vertical ejector pin 220 works in conjunction with the inclined first ejector pin 160 to achieve efficient and stable demolding of the molded part. This multi-ejector combination significantly improves demolding efficiency and success rate, especially for complex structures or deep-cavity injection molded parts.

[0029] In another embodiment of the utility model, drive assemblies 230 are installed at the front and rear ends of the fixed mold plate 110. Drive assemblies 230 can be pneumatic cylinders, or their drive ends are connected to the lifting plate 150, causing the lifting plate 150 to move upward and downward. The drive ends of drive assemblies 230 are connected to a connecting rod 240, which is equipped with a clamping member 250. A lifting plate 260 is installed between the lifting plate 150 and the base plate 140 for supporting the plate. The clamping member 250 engages with the lifting plate 260, and the lifting plate 260 is driven by drive assemblies 230 to move the base plate 140 upward and downward. Drive assemblies 230 can be motors or pneumatic cylinders. After injection molding is completed, drive assemblies 230 begin to operate, with their drive ends applying force to the lifting plate 260 through the connecting rod 240 and clamping member 250. Driven by the clamping member 250, the lifting plate 260 begins to rise, which in turn drives the base plate 140 upward and downward through the contact surface between its bottom and the base. During this process, the lifting plate 150 also rises simultaneously. However, due to its connection to the ejector pins, its primary function is to eject the molded part from the mold cavity 120. As the lifting plate 150 rises, the ejector pins penetrate the fixed mold plate 110 and push the molded part out of the mold cavity 120, completing the demolding process. The synergistic effect of the lifting plate 150 and the lifting plate 260 allows for more stable ejection of the molded part from the mold cavity 120, minimizing production losses caused by incomplete demolding or damage to the molded part.

[0030] In another embodiment of the utility model, a top cover 270 is provided at the upper end of the movable platen 100 , and a heat insulation plate for isolating the temperature is provided between the top cover 270 and the movable platen 100 .

[0031] In another embodiment of the utility model, a water collector is provided on the outer wall of the movable platen 100, and a plurality of cooling pipes 280 are provided in the movable platen 100. The water collector is connected to the cooling pipes 280 to cool the movable platen 100, so that the cavity 120 is evenly cooled to promote the molding of the raw material.

[0032] In another embodiment of the utility model, a circulation pipe 290 connected to the pouring port 130 is provided in the movable template 100 , the lower end of the circulation pipe 290 is connected to a plurality of pouring pipes 300 , and the outlet end of the pouring pipe 300 is connected to the mold cavity 120 .

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection mold for an injection molding machine, used for injecting raw materials to form injection molded parts, comprising a movable platen and a stationary fixed platen, wherein a cavity is formed between the movable platen and the fixed platen, and a pouring port is provided at the upper end of the movable platen, wherein the pouring port is connected to the cavity, and is characterized in that: A bottom plate is provided on the lower side of the fixed template, a lifting plate that can move up and down is provided between the bottom plate and the fixed template, an inclined first ejector is provided on the lifting plate, a slider that can slide left and right is provided in the fixed template, and the first ejector passes through the slider to eject the molded injection molded part in the cavity; a guide column is provided at the lower end of the movable template, and a pressure plate that can slide left and right is provided at a corresponding position on the fixed template, and the guide column extends into the pressure plate and is slidably connected to it.

2. The injection mold for an injection molding machine according to claim 1, wherein: A hollow support frame is provided between the fixed template and the base plate; a vertically upward support column is provided at the upper end of the base plate, and the support column passes through the support frame, the fixed template and the movable template in sequence, and is connected to the movable template in a limiting manner.

3. The injection mold for an injection molding machine according to claim 1, wherein: The inclination angle of the first ejector pin is within a range of 0 to 45 degrees.

4. The injection mold for an injection molding machine according to claim 1, wherein: A vertical second ejector is provided on the lifting plate, and the second ejector passes through the fixed template to eject the molded injection molded part in the cavity.

5. The injection mold for an injection molding machine according to claim 1, wherein: The front and rear ends of the fixed template are provided with driving components, and the driving ends of the driving components are connected to the lifting plate, so that the lifting plate performs lifting motion.

6. The injection mold for an injection molding machine according to claim 5, characterized in that: The driving end of the driving assembly is connected to a connecting rod, and a clamping piece is provided on the connecting rod. A lifting plate for supporting is provided between the lifting plate and the base plate, and the clamping piece is clamped with the lifting plate. When driven by the driving assembly, the lifting plate drives the base plate to perform lifting movements.

7. The injection mold for an injection molding machine according to claim 1, wherein: A top cover is provided at the upper end of the movable plate, and a heat insulation plate for isolating temperature is provided between the top cover and the movable plate.

8. The injection mold for an injection molding machine according to claim 1, wherein: A water collector is provided on the outer side wall of the movable template, and a plurality of cooling pipes are provided in the movable template. The water collector is connected to the cooling pipes to cool the movable template.

9. The injection mold for an injection molding machine according to claim 1, wherein: A circulation pipe connected to the pouring port is provided in the movable template, the lower end of the circulation pipe is connected to a plurality of pouring pipes, and the outlet end of the pouring pipe is connected to the mold cavity.

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