Ejection structure of injection mold

Abstract

The utility model discloses an ejection structure of an injection mold. The ejection structure comprises a fixed seat, a guide column, a connecting block, an ejection mechanism, an oil cylinder I, an oil cylinder II, a sliding hole, a clamping block, a clamping groove, a movable seat I, a separation block, a fixed plate I, a cavity mold and a cavity, the device has the advantages that the structure is reasonable and simple, the production cost is low, the clamping block is separated from the clamping groove by shortening the oil cylinder II, so that the movable seat I and the separation block can move downwards by shortening the oil cylinder I, and the separation block is separated from a product by moving downwards, so that the packaging force of the product is reduced, and the product can be directly pushed out in the follow-up process; according to the utility model, the clamping block is clamped in the clamping groove through the extension of the oil cylinder II, so that the separation block is ensured not to move downwards during injection molding, and the quality of an injection-molded product is improved; according to the ejection mechanism, all the ejection rods can be driven to move upwards through the movable seat II, so that a product can be directly pushed away from the cavity, and the requirement of quick demolding of the product is met.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an ejection structure of an injection mold. Background Art

[0002] Due to the structural characteristics of automobile bumper injection molding products, the product glue position is high or the product glue position is relatively complex, resulting in a large clamping force. When the ejector cannot be properly placed due to product structural factors, during the product injection and ejection process, the product will be deformed due to mold sticking or unbalanced ejection, thereby affecting the product quality. For example, the existing Chinese utility model patent with patent number CN209566468 U discloses an ejection structure of an injection mold, and the ejection structure adopts secondary ejection, which has a relatively complex structure and a relatively poor ejection effect. Utility Model Content

[0003] The purpose of the utility model is to provide an ejection structure of an injection mold in order to solve the above problems, which solves the problem that the existing ejection structure adopts secondary ejection and its structure is relatively complex, and the ejection effect is also relatively poor.

[0004] In order to solve the above problems, the utility model provides a technical solution: an ejection structure of an injection mold, comprising a fixed seat, a guide column, a connecting block, an ejection mechanism, a cylinder 1, a cylinder 2, a sliding hole, a clamping block, a clamping groove, a movable seat 1, a separation block, a fixed plate 1, a cavity mold and a cavity; the left and right sides of the fixed seat are fixedly connected with connecting blocks, and the top of the connecting block is respectively fixedly connected to the left and right sides of the bottom surface of the cavity mold, and a cavity is provided inside the upper side of the cavity mold, and the left and right sides of the center of the fixed seat are fixedly connected with cylinder 1; the ejection mechanism is arranged on the lower side of the cavity mold, and the upper side of the ejection mechanism is connected to the lower side of the cavity; there are four guide columns, and the lower sides of the four guide columns are respectively fixedly connected to the four corners of the upper side of the fixed seat, and the upper sides of the four guide columns are respectively fixed Fixedly connected at the four corners of the lower side of the cavity mold; guide holes are provided at the four corners of the movable seat, and the guide holes are movably connected to the outside of the corresponding guide columns, and the left and right sides of the movable seat are provided with card slots, and the bottom surface of the movable seat is fixedly connected to the end of the piston rod on the upper side of the cylinder; there are two sliding holes, and the two sliding holes are respectively opened inside the upper side of the corresponding connecting block, and the outer sides of the two sliding holes are fixedly connected to the oil cylinder 2, and the inner sides of the two sliding holes are movably connected with card blocks, and one side of the card block is fixedly connected to the corresponding end of the piston rod of the oil cylinder 2, and the other side of the card block is connected to the corresponding card slot; there are several separation blocks, and the lower sides of several separation blocks are fixedly connected to the top of the movable seat through a fixed plate, and the upper sides of several separation blocks are connected to the lower side of the cavity.

[0005] Preferably, the specific structure of the ejection mechanism includes a movable seat 2, a support block, an ejection hole, a fixed plate 2, an ejection rod and a spring; the movable seat 2 is provided with guide holes at the four corners, and the guide holes are movably connected to the outside of the corresponding guide pillars; a plurality of support blocks are fixedly connected to the top surface of the fixed seat; there are a plurality of ejection rods, and the lower sides of a plurality of the ejection rods are fixedly connected to the top surface of the movable seat 2 through the fixed plate 2; there are a plurality of springs, and the inner sides of a plurality of the springs are respectively located outside the corresponding ejection rods, the upper sides of a plurality of the springs are connected to the bottom surface of the movable seat 1, and the lower sides of a plurality of the springs are connected to the top surface of the fixed plate 2; the ejection hole is opened in the center of the bottom surface of the fixed seat.

[0006] Preferably, the lower side of the ejector rod is T-shaped, and the top surface of the ejector rod matches the bottom surface of the cavity.

[0007] Preferably, the sliding hole is a rectangular hole and matches the exterior of the block.

[0008] Preferably, the top surface of the separation block matches the bottom surface of the cavity.

[0009] The beneficial effects of the utility model are as follows: (1) The utility model has a reasonable and simple structure, low production cost, easy installation, and complete functions. Here, the clamping block is separated from the clamping slot by shortening the second cylinder, so that the movable seat 1 and the separation block can be moved downward by shortening the first cylinder. The downward movement of the separation block separates it from the product, thereby reducing the product clamping force, making it easier to directly push the product out later.

[0010] (2) In the utility model, the clamping block is clamped into the inside of the clamping groove by the extension of the oil cylinder 2, thereby ensuring that the separation block will not move downward during injection molding, thereby improving the quality of the product after injection molding.

[0011] (3) The ejection mechanism provided in the utility model can drive all ejection rods to move upward through the movable seat 2, so that the product can be directly pushed out of the cavity, thus meeting the need for rapid demoulding of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 for Figure 1 Enlarged view of position A in the middle.

[0014] Figure 3 It is a structural schematic diagram of the ejection mechanism.

[0015] 1-fixed seat; 2-guide column; 3-connecting block; 4-ejection mechanism; 5-oil cylinder 1; 6-oil cylinder 2; 7-sliding hole; 8-block; 9-slot; 10-movable seat 1; 11-separation block; 12-fixed plate 1; 13-cavity mold; 14-cavity; 41-movable seat 2; 42-support block; 43-ejection hole; 44-fixed plate 2; 45-ejection rod; 46-spring. DETAILED DESCRIPTION

[0016] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical scheme: an ejection structure of an injection mold, including a fixed seat 1, a guide column 2, a connecting block 3, an ejection mechanism 4, a cylinder 1 5, a cylinder 2 6, a sliding hole 7, a clamping block 8, a clamping groove 9, a movable seat 10, a separation block 11, a fixed plate 12, a cavity mold 13 and a cavity 14; the left and right sides of the fixed seat 1 are fixedly connected with the connecting blocks 3, and the top of the connecting block 3 is respectively fixedly connected to the left and right sides of the bottom surface of the cavity mold 13, and the cavity 14 is provided inside the upper side of the cavity mold 13, and the fixed seat 1 is fixedly connected with the cylinder 1 5 on the left and right sides of the center; the ejection mechanism 4 is arranged on the lower side of the cavity mold 13, and the upper side of the ejection mechanism 4 is connected to the lower side of the cavity 14; there are four guide columns 2, and the lower sides of the four guide columns 2 are respectively fixedly connected to the four corners of the upper side of the fixed seat 1, and the upper sides of the four guide columns 2 are respectively fixedly connected to the four corners of the upper side of the fixed seat 1. It is fixedly connected to the four corners of the lower side of the cavity mold 13; the four corners of the movable seat 10 are provided with guide holes, and the guide holes are movably connected to the outside of the corresponding guide columns 2, and the left and right sides of the movable seat 10 are provided with card slots 9, and the bottom surface of the movable seat 10 is fixedly connected to the end of the piston rod on the upper side of the cylinder 5; there are two sliding holes 7, and the two sliding holes 7 are respectively opened inside the upper side of the corresponding connecting block 3, and the outer sides of the two sliding holes 7 are fixedly connected to the cylinder 2 6, and the inner sides of the two sliding holes 7 are movably connected to the card block 8, and one side of the card block 8 is fixedly connected to the corresponding piston rod end of the cylinder 2 6, and the other side of the card block 8 is connected to the corresponding card slot 9; there are several separation blocks 11, and the lower sides of several separation blocks 11 are fixedly connected to the top of the movable seat 10 through a fixed plate 12, and the upper sides of several separation blocks 11 are connected to the lower side of the cavity 14.

[0017] like Figure 3As shown, the specific structure of the ejection mechanism 4 includes a movable seat 2 41, a support block 42, an ejection hole 43, a fixed plate 2 44, an ejection rod 45 and a spring 46; the movable seat 2 41 is provided with guide holes at the four corners, and the guide holes are movably connected to the outside of the corresponding guide pillars 2; a plurality of support blocks 42 are fixedly connected to the top surface of the fixed seat 1; there are a plurality of ejection rods 45, and the lower sides of a plurality of ejection rods 45 are fixedly connected to the top surface of the movable seat 2 41 through the fixed plate 2 44; there are a plurality of springs 46, and the inner sides of a plurality of springs 46 are respectively located outside the corresponding ejection rods 45, and the upper sides of a plurality of springs 46 are connected to the bottom surface of the movable seat 10, and the lower sides of a plurality of springs 46 are connected to the top surface of the fixed plate 2 44; the ejection hole 43 is opened in the center of the bottom surface of the fixed seat 1.

[0018] Among them, the lower side of the ejector rod 45 is T-shaped, and the top surface of the ejector rod 45 matches the bottom surface of the cavity 14, thereby improving the quality of the product after injection molding; the sliding hole 7 is a rectangular hole and matches the outside of the clamping block 8; the top surface of the separation block 11 matches the bottom surface of the cavity 14, thereby improving the quality of the product after injection molding.

[0019] The use status of the utility model is as follows: the utility model has a reasonable and simple structure, low production cost, convenient installation, and complete functions. When in use, the clamping block 8 is first separated from the clamping slot 9 by shortening the oil cylinder 2 6, so that the movable seat 10 and the separation block 11 are moved downward by shortening the oil cylinder 1 5, and the downward movement of the separation block 11 is separated from the product, thereby reducing the product clamping force, which is convenient for the subsequent direct push out of the product, and the extension of the oil cylinder 2 6 makes the clamping block 8 clamped to the inside of the clamping slot 9, thereby ensuring that the separation block 11 will not move downward during injection molding, thereby improving the quality of the product after injection molding, and the ejection mechanism 4 is set, which can drive all the ejection rods 45 to move upward through the movable seat 2 41, so that the product can be directly pushed away from the cavity 14, thereby meeting the need for rapid demolding of the product.

[0020] The control method in the present invention is to start manually or control by existing automation technology. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0021] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" 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 should not be understood as a limitation on the present invention.

[0022] In the present utility model, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An ejection structure of an injection mold, characterized in that: It comprises a fixed seat (1), a guide column (2), a connecting block (3), an ejection mechanism (4), a first oil cylinder (5), a second oil cylinder (6), a sliding hole (7), a clamping block (8), a clamping groove (9), a first movable seat (10), a separation block (11), a first fixed plate (12), a cavity mold (13) and a cavity (14); The fixing seat (1) is fixedly connected to connecting blocks (3) on both left and right sides, and the top of the connecting blocks (3) is fixedly connected to the left and right sides of the bottom surface of the cavity mold (13), and a cavity (14) is provided inside the upper side of the cavity mold (13). The fixing seat (1) is fixedly connected to oil cylinder 1 (5) on both left and right sides of the center of the fixing seat (1); The ejection mechanism (4) is arranged on the lower side of the cavity mold (13), and the upper side of the ejection mechanism (4) is connected to the lower side of the cavity (14); There are four guide pillars (2), the lower sides of the four guide pillars (2) are respectively fixedly connected to the four corners of the upper side of the fixing seat (1), and the upper sides of the four guide pillars (2) are respectively fixedly connected to the four corners of the lower side of the cavity mold (13); The movable seat (10) is provided with guide holes at the four corners, and the guide holes are movably connected to the outside of the corresponding guide pillars (2), and the movable seat (10) is provided with clamping grooves (9) on both sides, and the bottom surface of the movable seat (10) is fixedly connected to the end of the piston rod on the upper side of the oil cylinder (5); There are two sliding holes (7), and the two sliding holes (7) are respectively opened inside the upper side of the corresponding connecting block (3). The inner and outer sides of the two sliding holes (7) are fixedly connected to the second oil cylinder (6). The inner and outer sides of the two sliding holes (7) are movably connected to the clamping block (8), and one side of the clamping block (8) is fixedly connected to the end of the piston rod of the corresponding second oil cylinder (6), while the other side of the clamping block (8) is connected to the corresponding clamping groove (9); There are a plurality of separation blocks (11), the lower sides of the plurality of separation blocks (11) are fixedly connected to the top of the movable seat (10) via a fixing plate (12), and the upper sides of the plurality of separation blocks (11) are connected to the lower side of the cavity (14).

2. The ejection structure of the injection mold according to claim 1, characterized in that: The specific structure of the ejection mechanism (4) includes a second movable seat (41), a support block (42), an ejection hole (43), a second fixed plate (44), an ejection rod (45) and a spring (46); The four corners of the movable seat 2 (41) are all provided with guide holes, and the guide holes are movably connected to the outside of the corresponding guide pillars (2); A plurality of support blocks (42) are fixedly connected to the top surface of the fixing seat (1); There are a plurality of ejector rods (45), and the lower sides of the plurality of ejector rods (45) are fixedly connected to the top surface of the second movable seat (41) through a second fixing plate (44); There are a plurality of springs (46), the inner sides of the plurality of springs (46) are respectively located outside the corresponding ejector rods (45), the upper sides of the plurality of springs (46) are connected to the bottom surface of the movable seat 1 (10), and the lower sides of the plurality of springs (46) are connected to the top surface of the fixed plate 2 (44); The ejection hole (43) is provided at the center of the bottom surface of the fixing seat (1).

3. The ejection structure of the injection mold according to claim 2, characterized in that: The lower side of the ejector rod (45) is in a T shape, and the top surface of the ejector rod (45) matches the bottom surface of the cavity (14).

4. The ejection structure of the injection mold according to claim 1, characterized in that: The sliding hole (7) is a rectangular hole and matches the outside of the clamping block (8).

5. The ejection structure of the injection mold according to claim 1, characterized in that: The top surface of the separation block (11) matches the bottom surface of the cavity (14).

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