Secondary ejection improvement structure capable of increasing stroke
By designing a secondary ejection structure in the mold, and using a cylinder to drive the ejector plate to move upward and the ejector rod to increase the stroke, the problem of insufficient ejection distance after mold injection is solved, and more efficient product removal is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN DINGSHENG PRECISION IND CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-09
AI Technical Summary
The existing mold has insufficient ejection distance after injection molding, which makes it impossible to remove the product and causes inconvenience to users.
Design a secondary ejection structure including a base plate, a first ejector plate, a second ejector plate, a third ejector plate, and a connecting assembly. The first ejector plate is driven to move upward by a cylinder, the second and third ejector plates are used to raise and push the assembly, and the ejection stroke is increased by a support column or push rod.
It improves the ease of ejection of the mold after injection molding, solves the problem of products being unable to be removed, and enhances the ejection capacity of the mold.
Smart Images

Figure CN224334934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to an improved secondary ejection structure that can increase the stroke. Background Technology
[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts. It primarily achieves the shaping of objects by changing the physical state of the material being molded.
[0003] Currently, existing molds often have insufficient ejection distance after injection molding, which can easily cause the molded product to adhere to the mold base, making it impossible to remove the product and causing great inconvenience to users. Utility Model Content
[0004] The purpose of this invention is to provide a secondary ejection improvement structure that can increase the stroke, so as to solve the problem mentioned in the background art that the product cannot be removed due to insufficient ejection distance in existing molds.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary ejection improvement structure that can increase stroke, comprising a base plate, wherein a first ejector plate, a second ejector plate, and a third ejector plate are stacked sequentially from bottom to top on the surface of the base plate, and the base plate, the first ejector plate, the second ejector plate, and the third ejector plate are connected by two sets of connecting components; two square irons arranged side by side are fixed to both ends of the surface of the base plate, and a B plate is fixed to the top between adjacent square irons, and a rear mold core is installed inside the B plate; an ejector rod assembly is provided on the surface of the first ejector plate, and a pushing assembly is provided on the surface of the rear mold core.
[0006] Preferably, the connecting assembly consists of an outer sliding frame, an inner sliding block, and a connecting seat, wherein the outer sliding frame is fixed to the surface of the base plate by two screws.
[0007] Preferably, the inner slider is slidably connected to the inner slide frame, and the inner slider is fixed to the surface of the third ejector plate by two bolts; the left and right sides of the first ejector plate are equipped with connecting seats by bolts, and the bottom of the inner slider is hooked to the connecting seats.
[0008] Preferably, the pushing component includes a push plate and a guide post, and the interior of the rear mold core is provided with a push plate that can move up and down.
[0009] Preferably, guide posts are fixed at the four corners of the bottom of the push plate, and the guide posts penetrate the rear mold core and the B plate and are fixedly connected to the surface of the third ejector plate.
[0010] Preferably, the ejector rod assembly is composed of a support column, a first ejector rod, and a second ejector rod. The support column is fixed to the surface of the first ejector plate, and the top end of the support column passes through the second ejector plate and the third ejector plate and is hinged to the first ejector rod. The top end of the first ejector rod passes through plate B and is hinged to the second ejector rod, and the second ejector rod passes through the rear mold core.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the improved secondary ejection structure that can increase the stroke uses an external cylinder to push the first ejector plate upward through the base plate. Since the first ejector plate is equipped with a second ejector plate and a third ejector plate, the pushing component is raised by the second and third ejector plates, so that the pushing component can increase its stroke when it is lifted. At the same time, the ejection stroke can also be increased by the support column or the first ejector rod during the lifting process. This solves the problem that the product cannot be removed due to insufficient ejection distance after injection molding in existing molds, thus improving the convenience of ejection after injection molding. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is a schematic diagram of the partially separated structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the magnified oblique view structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the partial explosion structure of this utility model.
[0016] In the diagram: 1. Base plate; 2. First ejector plate; 3. Second ejector plate; 4. Third ejector plate; 5. Connecting assembly; 51. Outer slide frame; 52. Inner slide block; 53. Connecting seat; 6. Pushing assembly; 61. Push plate; 62. Guide pillar; 7. Ejector rod assembly; 71. Support pillar; 72. First ejector rod; 73. Second ejector rod; 8. B plate; 81. Rear mold core; 9. Square iron. Detailed Implementation
[0017] 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0018] This utility model provides a structure that can increase the stroke of the secondary ejection improvement structure, such as... Figure 1 as well as Figure 3 As shown, the system includes a base plate 1. From bottom to top, a first ejector plate 2, a second ejector plate 3, and a third ejector plate 4 are stacked on the surface of the base plate 1. The base plate 1, the first ejector plate 2, the second ejector plate 3, and the third ejector plate 4 are connected by two sets of connecting components 5. The connecting components 5 consist of an outer sliding frame 51, an inner slider 52, and a connecting seat 53. The outer sliding frame 51 is fixed to the surface of the base plate 1 by two screws. The inner slider 52 is slidably connected inside the outer sliding frame 51, and the inner slider 52 is fixed to the surface of the third ejector plate 4 by two bolts. The connecting seats 53 are installed on both sides of the first ejector plate 2 by bolts, and the bottom of the inner slider 52 is hooked to the connecting seat 53.
[0019] During implementation, an external cylinder passes through the base plate 1 and pushes the first ejector plate 2 upward, since the first ejector plate 2 is equipped with a second ejector plate 3 and a third ejector plate 4.
[0020] Furthermore, such as Figure 2 as well as Figure 4 As shown, two square irons 9 are fixedly connected to both ends of the surface of the base plate 1, and a B plate 8 is fixed to the top between adjacent square irons 9. The rear mold core 81 is installed inside the B plate 8. A pushing assembly 6 is provided on the surface of the rear mold core 81. The pushing assembly 6 includes a push plate 61 and a guide post 62. The push plate 61, which can move up and down, is provided inside the rear mold core 81. A guide post 62 is fixed at each of the four corners at the bottom of the push plate 61. The guide post 62 passes through the rear mold core 81 and the B plate 8 and is fixedly connected to the surface of the third ejector plate 4.
[0021] During implementation, the pushing component 6 is raised by the second ejector plate 3 and the third ejector plate 4.
[0022] Furthermore, such as Figure 3 as well as Figure 4 As shown, the surface of the first ejector plate 2 is provided with an ejector rod assembly 7. The ejector rod assembly 7 is composed of a support column 71, a first ejector rod 72 and a second ejector rod 73. The support column 71 is fixed to the surface of the first ejector plate 2, and the top end of the support column 71 passes through the second ejector plate 3 and the third ejector plate 4 and is hinged to the first ejector rod 72. The top end of the first ejector rod 72 passes through plate B 8 and is hinged to the second ejector rod 73. The second ejector rod 73 passes through the rear mold core 81.
[0023] During implementation, the ejection stroke can also be increased by using the support column 71 or the first ejector rod 72, which solves the problem that the product cannot be removed after the existing mold is completed due to insufficient ejection distance.
[0024] Working principle: In use, the first ejector plate 2 is pushed upward by the external cylinder through the base plate 1. Since the second ejector plate 3 and the third ejector plate 4 are placed on the first ejector plate 2, the push component 6 is raised by the second ejector plate 3 and the third ejector plate 4, so that the push component 6 can increase the stroke when it is lifted. At the same time, the ejection stroke can also be increased by the support column 71 or the first ejector rod 72 during the lifting. This solves the problem that the product cannot be removed due to insufficient ejection distance after the existing mold is injected. Therefore, the convenience of ejection after injection is improved.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A secondary ejection improvement structure capable of increasing stroke, comprising a base plate (1), characterized in that: The base plate (1) has a first ejector plate (2), a second ejector plate (3) and a third ejector plate (4) stacked from bottom to top. The base plate (1), the first ejector plate (2), the second ejector plate (3) and the third ejector plate (4) are connected by two sets of connecting components (5). Two square irons (9) are fixed at both ends of the surface of the base plate (1), and a B plate (8) is fixed at the top between adjacent square irons (9). The rear mold core (81) is installed inside the B plate (8). The surface of the first ejector plate (2) is provided with an ejector rod assembly (7), and the surface of the rear mold core (81) is provided with a pushing assembly (6).
2. The improved secondary ejection structure according to claim 1, characterized in that: The connecting assembly (5) consists of an outer sliding frame (51), an inner sliding block (52), and a connecting seat (53). The outer sliding frame (51) is fixed to the surface of the base plate (1) by two screws.
3. The improved secondary ejection structure according to claim 2, characterized in that: The inner slider (52) is slidably connected to the inner sliding frame (51), and the inner slider (52) is fixed to the surface of the third ejector plate (4) by two bolts; the left and right sides of the first ejector plate (2) are equipped with connecting seats (53) by bolts, and the bottom of the inner slider (52) is hooked to the connecting seats (53).
4. The improved secondary ejection structure according to claim 1, characterized in that: The pushing component (6) includes a push plate (61) and a guide post (62), and the interior of the rear mold core (81) is provided with a push plate (61) that can move up and down.
5. The improved secondary ejection structure according to claim 4, characterized in that: Guide posts (62) are fixed at the four corners of the bottom of the push plate (61), and the guide posts (62) penetrate the rear mold core (81) and the B plate (8) and are fixed to the surface of the third ejector plate (4).
6. The improved secondary ejection structure according to claim 1, characterized in that: The ejector assembly (7) is composed of a support column (71), a first ejector (72) and a second ejector (73). The support column (71) is fixed to the surface of the first ejector plate (2), and the top end of the support column (71) passes through the second ejector plate (3) and the third ejector plate (4) and is hinged to the first ejector (72). The top end of the first ejector (72) passes through the B plate (8) and is hinged to the second ejector (73). The second ejector (73) passes through the rear mold core (81).