Round ejector structure for mold production
By cross-setting the dome pin fixing rod and the oblique top fixing rod, the interference problem between the dome pin and the oblique top fixing rod is solved, and the strength of the dome pin is enhanced, ensuring the smooth progress of mold production and cost control.
Patent Information
- Application Number
- CN202422273895.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-18
AI Technical Summary
In the prior art, the interference of the dome pin and the oblique top fixing rod leads to difficulty in demolding, and the dome pin is insufficient in strength and is prone to breaking, which affects the normal progress of mold production.
A dome pin structure is designed, including a dome pin fixing rod and a oblique top fixing rod, which avoids interference through cross-setting and clearance design, and increases the thickness of the fixed rod wall to increase strength.
It effectively solves the interference problem between the dome pin and the oblique top fixing rod, improves the strength of the dome pin, reduces the risk of breaking, and ensures the safety and cost-effectiveness of mold production.
Smart Images

Figure CN223045099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mold production, in particular to a dome pin structure for mold production. Background Technique
[0002] Deep cavities on the product need rib supports. The rib height is 47MM and it is easy to stick to the mold. Therefore, dome pins are needed to eject the ribs. Limited by the product structure, the dome pin here interferes with the fixed rod of the lifter. The main function of the lifter is to realize the demolding of the product installation structure and cannot be cancelled. If the dome pin is cancelled, the ribs will stick to the mold and production cannot be realized. Content of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] In view of the deficiencies of the prior art, the utility model provides a dome pin structure for mold production, which solves the problems put forward in the above background technique.
[0005] (2) Technical Solutions
[0006] To achieve the above objectives, the utility model is realized through the following technical solutions: A dome pin structure for mold production, including a lifter fixed rod for fixing the lifter. A dome pin assembly is arranged outside the lifter fixed rod for ejecting the product. A gap is left between the dome pin assembly and the lifter fixed rod. The dome pin assembly includes a dome pin fixed rod, and a dome pin connected to the dome pin fixed rod is arranged in the dome pin fixed rod. This solution makes the dome pin into two ends, adds a "7"-shaped fixed rod at the bottom, and uses dislocation to make the dome pin avoid the lifter rod. The fixed rod is provided with a "T"-shaped groove to connect with the dome pin, and the installation is simple and convenient.
[0007] Further, the dome pin fixed rod is located at the bottom end of the lifter fixed rod, the dome pin is installed at the top end of the dome pin fixed rod, and an included angle is left between the dome pin and the lifter fixed rod.
[0008] Further, the cross-sectional shape of the dome pin fixed rod is in the shape of "", and a T-shaped groove adapted to the dome pin is provided at the top end of the dome pin fixed rod.
[0009] Further, the dome pin fixed rod and the lifter fixed rod are arranged in a cross shape, and a gap is left between the dome pin fixed rod and the lifter fixed rod.
[0010] Further, the length of the dome pin fixed rod is one-third of the length of the dome pin, and the thickness of the dome pin fixed rod is greater than the thickness of the dome pin.
[0011] Furthermore, a guiding block is sleeved in the inclined ejector fixing rod. A pushing block is provided at the bottom of the inclined ejector fixing rod, and a connecting block capable of being connected to the inclined ejector fixing rod is provided in the pushing block.
[0012] Furthermore, the bottom end of the round ejector pin is on the same horizontal plane as the guiding block, and the top end of the round ejector pin can be on the same horizontal plane as the top end of the inclined ejector fixing rod.
[0013] Compared with the prior art, the round ejector pin structure for mold production can effectively solve the problem of interference between the round ejector pin and the inclined ejector fixing rod through the arrangement of the round ejector pin and the round ejector pin fixing rod. Analyzing from the strength of the round ejector pin, the original round ejector pin was relatively long, with poor strength and a high risk of fracture; the improved round ejector pin is short in length, has good strength, and the lower fixing rod has a thick wall and good strength, making it not easily break.
[0014] In summary, after the barrel adopts the new structure, the procurement cost of the barrel is low, the strength is good, and it can safely ensure the normal production of the mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the prior art of the present utility model;
[0016] Figure 2 is a schematic structural diagram of the improved present utility model;
[0017] Figure 3 For the present utility model Figure 2 is a schematic structural diagram from another perspective;
[0018] Figure 4 For the present utility model Figure 1 is a schematic cross-sectional structural diagram;
[0019] Figure 5 For the present utility model Figure 2 is a schematic cross-sectional structural diagram.
[0020] In the figure: 1, inclined ejector fixing rod; 3, round ejector pin assembly; 4, round ejector pin fixing rod; 5, round ejector pin; 6, guiding block; 7, pushing block; 8, connecting block; 9, T-shaped groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0022] Please refer to Figures 1 to 5, the present utility model provides a technical solution: a dome pin structure for mold production, including an inclined pin fixing rod 1, which is used to fix the inclined pin. A dome pin assembly 3 is arranged outside the inclined pin fixing rod 1, and the dome pin assembly 3 is used to eject the product. There is a gap between the dome pin assembly 3 and the inclined pin fixing rod 1. The dome pin assembly 3 includes a dome pin fixing rod 4, and a dome pin 5 connected to the dome pin fixing rod 4 is arranged in the dome pin fixing rod 4. The dome pin fixing rod 4 is located at the bottom position of the inclined pin fixing rod 1, and the dome pin 5 is installed at the top position of the dome pin fixing rod 4. There is an included angle between the dome pin 5 and the inclined pin fixing rod 1. The cross-sectional shape of the dome pin fixing rod 4 is in the shape of "7". A T-shaped groove 9 adapted to the dome pin 5 is provided at the top position of the dome pin fixing rod 4. The dome pin fixing rod 4 and the inclined pin fixing rod 1 are arranged in a cross manner, and there is a gap between the dome pin fixing rod 4 and the inclined pin fixing rod 1. The length of the dome pin fixing rod 4 is one-third of the length of the dome pin 5, and the thickness of the dome pin fixing rod 4 is greater than the thickness of the dome pin 5. A guide block 6 sleeved in the inclined pin fixing rod 1 is arranged in the inclined pin fixing rod 1. A push block 7 is arranged at the bottom of the inclined pin fixing rod 1, and a connecting block 8 capable of being connected to the inclined pin fixing rod 1 is arranged in the push block 7. The bottom end of the dome pin 5 is at the same horizontal plane as the guide block 6, and the top end of the dome pin 5 can be at the same horizontal plane as the top end of the inclined pin fixing rod 1.
[0023] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or indirectly through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. In the case of this example, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model or the utility model can be understood according to specific circumstances.
[0024] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its utility model concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A dome pin structure for mold production, comprising a dome fixing rod (1), wherein the dome fixing rod (1) is used to fix the dome, and is characterized in that: A dome needle assembly (3) is provided on the outer side of the inclined ejector fixing rod (1), and the dome needle assembly (3) is used to eject products. A gap is left between the dome needle assembly (3) and the inclined ejector fixing rod (1). The dome needle assembly (3) comprises a dome needle fixing rod (4), and a dome needle (5) connected to the dome needle fixing rod (4) is provided in the dome needle fixing rod (4).
2. The dome pin structure for mold production according to claim 1, characterized in that: The dome needle fixing rod (4) is located at the bottom end of the inclined top fixing rod (1), and the dome needle (5) is installed at the top end of the dome needle fixing rod (4), with an angle between the dome needle (5) and the inclined top fixing rod (1).
3. The dome pin structure for mold production according to claim 2, characterized in that: The cross-sectional shape of the dome needle fixing rod (4) is in the shape of a letter "7", and a T-shaped groove (9) which can be matched with the dome needle (5) is provided at the top end of the dome needle fixing rod (4).
4. The dome pin structure for mold production according to claim 3, characterized in that: The dome needle fixing rod (4) and the inclined top fixing rod (1) are arranged crosswise, and a gap is left between the dome needle fixing rod (4) and the inclined top fixing rod (1).
5. The dome pin structure for mold production according to claim 4, characterized in that: The length of the dome needle fixing rod (4) is one third of the length of the dome needle (5), and the thickness of the dome needle fixing rod (4) is greater than the thickness of the dome needle (5).
6. The dome pin structure for mold production according to claim 5, characterized in that: The inclined top fixing rod (1) is provided with a guide block (6) which is hollowly sleeved with the inclined top fixing rod (1), the bottom of the inclined top fixing rod (1) is provided with a push block (7), and the push block (7) is provided with a connecting block (8) which can be connected to the inclined top fixing rod (1).
7. The dome pin structure for mold production according to claim 6, characterized in that: The bottom end of the dome needle (5) and the guide block (6) are kept at the same horizontal plane, and the top end of the dome needle (5) and the top end of the inclined top fixing rod (1) are kept at the same horizontal plane.