Anti-deformation mechanism for angle ejector rod in injection mold

Abstract

The utility model provides an angle ejector rod anti-deformation mechanism in an injection mold, which comprises a mold core plate, a mold core fixing plate and mold feet, an ejector pin bottom plate and an ejector pin panel are arranged on the top surface of the mold core fixing plate, an ejection oil cylinder for ejecting the ejector pin bottom plate is arranged on the top surface of the mold core fixing plate, and the bottom surface of the mold core plate and the top surface of the mold core fixing plate are both connected with guide rod fixing seats. The ejector pin bottom plate is connected with an inclined ejector base, a shaft hole is formed in the inclined ejector base, the upper end of a bearing guide rod is connected to a guide rod fixing base on the bottom face of the core plate, and the lower portion of the bearing guide rod sequentially penetrates through the shaft hole of the inclined ejector base, the ejector pin face plate and the ejector pin bottom plate and then is obliquely connected to the guide rod fixing base of the core fixing plate. The top of the pitched roof base is connected with a pitched roof rod, the top of the pitched roof rod is connected with a pitched roof block after penetrating through the core plate, the top surface of the pitched roof block is matched with the top surface of the core plate, and the pitched roof rod and the bearing guide rod are arranged in parallel. By adopting a double-rod structure, the ejection stability of the mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field especially is related to a kind of anti-deformation mechanism of inclined ejector rod in injection mold. BACKGROUND

[0002] Inclined ejector structure is very common in mold manufacturing, for product B face upside-down area, inclined ejector is often first selected, so the stability of inclined ejector structure determines the service life and mass production efficiency of mold. The angle of conventional inclined ejector rod is within 12 °, if the angle of inclined ejector rod needs to exceed 12 °, the height of ejection is usually increased to realize. In this way, mold height is exceeded, equipment matching cannot be met, secondly, part is lengthened, cost is increased, and mold total amount is increased. SUMMARY

[0003] For the above problems, the utility model aims at providing a kind of anti-deformation mechanism of inclined ejector rod in injection mold, which adopts inclined ejector rod cooperation load-bearing rod double-rod structure, can increase the setting angle of inclined ejector rod, and load-bearing rod can decompose the stress of inclined ejector rod, improve the stability of mold ejection.

[0004] The technical scheme of the utility model is a kind of anti-deformation mechanism of inclined ejector rod in injection mold, including core plate and core fixed plate, the height of the core plate and the core fixed plate four sides is kept fixed interval by connecting after die foot, the top surface of the core fixed plate is provided with ejector pin bottom plate and ejector pin faceplate, the top surface of the core fixed plate is provided with the ejector cylinder that the ejector pin bottom plate is lifted, the bottom surface of the core plate and the top surface of the core fixed plate are all connected with guide rod fixed seat, the ejector pin bottom plate is connected with inclined ejector base, the inclined ejector base is provided with shaft hole, load-bearing guide rod upper end is connected on the guide rod fixed seat of the bottom surface of the core plate, load-bearing guide rod lower part is sequentially passed through inclined ejector base shaft hole, ejector pin faceplate and ejector pin bottom plate and then is obliquely connected on the guide rod fixed seat of the core fixed plate, the top of the inclined ejector base is connected with inclined ejector rod, the top of the inclined ejector rod is connected with inclined ejector block after passing through the core plate, the top surface of the inclined ejector block is matched with the top surface of the core plate, the inclined ejector rod and load-bearing guide rod are arranged in parallel;The inclined ejector rod is obliquely driven up along load-bearing guide rod guide after being driven up by ejector cylinder through ejector pin bottom plate, inclined ejector base and then the inclined ejector block is ejected from the top surface of the core plate.

[0005] Preferably, the maximum angle of inclination of the inclined ejector rod and the load-bearing guide rod relative to the vertical direction is 30 °.

[0006] Preferably, the ejector pin faceplate is provided with a clearance hole accommodating the inclined ejector base.

[0007] Preferably, the number of ejector cylinders on the core fixed plate is 4, and they are distributed at the left and right end positions of the front and rear two long sides of the ejector pin bottom plate.

[0008] Preferably, the length of the inclined ejector rod is greater than the length of the load-bearing guide rod.

[0009] The utility model discloses adopt inclined ejector rod cooperation load-bearing rod guide double -column structure, can increase the inclination angle of inclined ejector rod, and simultaneously load-bearing rod can decompose the stress of inclined ejector rod, improve the stability of mould ejection. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structure schematic diagram of the utility model;

[0011] Figure 2 It is the structure schematic diagram of the utility model; Figure 1 It is the structure schematic diagram of the utility model;

[0012] Figure 3 It is the structure schematic diagram of the utility model;

[0013] Figure 4 It is the structure schematic diagram of the utility model;

[0014] Figure 5 It is the structure schematic diagram of the utility model;

[0015] Figure 6 It is the structure schematic diagram of the utility model; Figure 5 It is the structure schematic diagram of the utility model;

[0016] Wherein: 1 - core plate;2 - core fixed plate;3 - mould foot;4 - ejector rod bottom plate;5 - ejector rod faceplate;51 - avoid hole;6 - guide rod fixed base;7 - inclined ejector base;8 - load-bearing guide rod;9 - inclined ejector rod;10 - inclined ejector block. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] As Figures 1 to 6The utility model provides a kind of anti-deformation mechanism of inclined ejector rod in injection mold, including core plate 1 and core fixed plate 2, the height of core plate 1 and core fixed plate 2 four sides is kept fixed interval after being connected by mould foot 3, the top surface of core fixed plate 2 is provided with ejector pin bottom plate 4 and ejector pin faceplate 5, the top surface of core fixed plate 2 is provided with the ejector pin bottom plate 4 and is set up the ejector cylinder that lifts, the bottom surface of core plate 1 and the top surface of core fixed plate 2 are all connected with guide rod fixed seat 6, the guide rod fixed seat 6 on the bottom surface of core plate 1 is connected with the upper end of load-bearing guide rod 8, load-bearing guide rod 8 lower part is sequentially passed through the shaft hole of inclined ejector seat 7, ejector pin faceplate 5 and ejector pin bottom plate 4 after being inclined and being connected on the guide rod fixed seat 6 of core fixed plate 2, the top of inclined ejector seat 7 is connected with inclined ejector rod 9, the top of inclined ejector rod 9 is connected with inclined ejector block 10 after being passed through core plate 1, the top surface of inclined ejector block 10 is matched with the top surface of core plate 1, and inclined ejector rod 9 and load-bearing guide rod 8 are arranged in parallel;Ejector cylinder is lifted up and is lifted up through ejector pin bottom plate 4, inclined ejector seat 7 drives inclined ejector rod 9 to be inclined and is lifted up along the guidance sliding of load-bearing guide rod 8 after being guided, and then ejects inclined ejector block 10 from the top surface of core plate 1.

[0019] In the above scheme, the maximum angle of inclination of the inclined ejector rod 9 and the load-bearing guide rod 8 relative to the vertical direction is 30°.

[0020] In addition, the ejector pin faceplate 5 is provided with a relief hole 51 for accommodating the inclined ejector seat 7.

[0021] Specifically, the number of ejector cylinders on the core fixed plate 2 is four, which are respectively distributed at the left and right end positions of the front and rear two long sides of the ejector pin bottom plate 4.

[0022] Further, the length of the inclined ejector rod 9 is greater than the length of the load-bearing guide rod 8.

[0023] The utility model adopts double-rod auxiliary, so that the inclined ejector rod 9 is moved upward along with the load-bearing guide rod 8 when ejecting, which divides the previous single-rod force of the inclined ejector rod into double-rod force, and the length of the load-bearing guide rod 8 is shorter than the length of the inclined ejector rod 9, and the load-bearing guide rod 8 is fixed, which can effectively decompose the force condition of the inclined ejector rod 9, thereby improving the stability of mold ejection and increasing the service life of the mold. This mechanism is suitable for all mold reverse clamping mechanisms, and the maximum angle of inclination relative to the vertical direction can reach 28°-30°, which greatly solves the difficulty of large stroke reverse clamping.

[0024] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change or modification made according to the technical principles of the utility model to the above embodiments still belongs to the scope of the technical solutions of the utility model.

Claims

1. A mechanism for preventing deformation of a sloping ejector pin in an injection mold, characterized by: The utility model relates to a core lifter, including core plate (1) and core fixed plate (2), four sides of core plate (1) and core fixed plate (2) are connected through the mode foot (3) and keep the fixed interval height, the top surface of core fixed plate (2) is provided with ejector pin bottom plate (4) and ejector pin faceplate (5), the top surface of core fixed plate (2) is provided with the ejector pin bottom plate (4) and is set up the ejector pin faceplate (5), the top surface of core fixed plate (2) is provided with the ejector pin bottom plate (4) and is set up the ejector pin faceplate (5), the bottom surface of core plate (1) and the top surface of core fixed plate (2) are connected with guide rod fixed seat (6), the ejector pin bottom plate (4) is connected with inclined ejector pin base (7), the inclined ejector pin base (7) is provided with shaft hole, the upper end of bearing guide rod (8) is connected on the guide rod fixed seat (6) of core plate (1) bottom surface, bearing guide rod (8) lower part passes inclined ejector pin base (7) shaft hole, ejector pin faceplate (5) and ejector pin bottom plate (4) in proper order and is connected on the guide rod fixed seat (6) of core fixed plate (2) and is inclined, the inclined ejector pin base (7) top is connected with inclined ejector pin (9), the inclined ejector pin (9) passes through core plate (1) and is connected with inclined ejector pin (10) on top, and the top surface of inclined ejector pin (10) is matched with the top surface of core plate (1), the inclined ejector pin (9) and bearing guide rod (8) are arranged in parallel;Ejector pin bottom plate (4) is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined ejector pin base (7) and is driven to the inclined ejector pin (9) by the ejector pin bottom plate (4) and the inclined 2. The anti-deformation mechanism of the inclined ejector rod in the injection mold according to claim 1, characterized in that: ​ 3. The anti-deformation mechanism of the inclined ejector rod in the injection mold according to claim 1, characterized in that: ​ 4. The anti-deformation mechanism of the inclined ejector rod in the injection mold according to claim 1, characterized in that: ​ 5. The anti-deformation mechanism of the inclined ejector rod in the injection mold according to claim 1, characterized in that: ​

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