Rubber corrugated pipe mold core
By designing a detachable and connected rubber corrugated die core, the problem of easy damage to the die core column during auxiliary positioning is solved, and the damage problem can be solved by replacing the core head, reducing manufacturing cost and production time.
Patent Information
- Application Number
- CN202420095846.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-15
AI Technical Summary
The die core columns of existing bellows die cores are easily damaged during auxiliary positioning, resulting in high production costs and long time. After reducing the hardness of the steel, the die core columns will be extruded and deformed, which cannot meet the performance requirements.
Design a rubber corrugated pipe die core, adopting a detachable and connected core body and core head structure, the core head is equipped with a die-core fixed threaded hole and a step hole, and the shape of the core head and tail is fitted with the front counter hole of the core body, through The counterhead bolt is connected to realize the removable replacement of the core head and the core body.
When the core head column is damaged, you only need to replace the core head without re-made the entire core, which reduces manufacturing costs and saves production time and avoids replacement of the entire core.
Smart Images
Figure CN222245661U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of rubber moulds, and in particular relates to a rubber bellows mould core. Background Art
[0002] At present, the core of the corrugated pipe is an integrated core, the core column has a small diameter and the core column plays an auxiliary positioning role for the core. This production environment with low strength and high performance requirements makes the core column easy to be damaged. Once the core column is damaged, the entire core is scrapped, and it is costly and time-consuming to remake the core.
[0003] In order to solve the problem of the core column breaking during the auxiliary positioning process, the hardness of the steel was reduced. However, it was found that after the hardness was reduced, the core column would be squeezed and deformed, and the product could not meet the requirements. Therefore, changing the hardness of the steel to make the core column have a certain toughness cannot solve the existing problem. Utility Model Content
[0004] The utility model aims to provide a rubber bellows mold core, which has the characteristics of reducing manufacturing costs and saving production time.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is a rubber bellows mold core, including a core body that passes through the head and tail, a core fixing threaded hole for fixing the core body to the corrugated pipe mold is provided in the hollow area at the tail of the core body, the core body head and the core head tail are detachably connected, a core head column is provided at the core head, and the shapes of the core body and the core head are adapted to the upper mold positioning groove and the lower mold positioning groove.
[0006] Furthermore, the detachable connection is connected by countersunk bolts whose countersunk diameter is smaller than the diameter of the fixed threaded hole of the mold core.
[0007] Furthermore, a stepped hole for sinking a countersunk bolt is provided in the hollow area of the core head.
[0008] Furthermore, a core front countersunk hole for accommodating the tail of the core head is provided at the front end of the core stepped hole.
[0009] Furthermore, the outer side shape of the core head tail is configured as a core head cylindrical surface that fits in with the front countersunk hole of the core body.
[0010] The mold core of the utility model is composed of a core body and a core head that are detachably connected. When the core head column is damaged during operation, only the core head needs to be replaced without remaking the entire mold core, which greatly reduces the manufacturing cost and saves production time. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the structure of the utility model;
[0012] Figure 2It is a schematic diagram of the structure of the bellows mold;
[0013] Among them: 1-core; 11-core fixing threaded hole; 12-step hole; 13-core front countersunk hole; 2-core head; 21-core head column; 22-core head cylindrical surface; 3-countersunk bolt; 4-upper die; 41-upper die positioning groove; 5-lower die; 51-lower die positioning groove DETAILED DESCRIPTION
[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0015] like Figure 1 and 2 A rubber bellows mold core shown in the figure comprises a core body 1 which passes through the head and tail, and a core fixing threaded hole 11 for fixing the core body 1 to the bellows mold is arranged in the hollow area at the tail of the core body 1, so as to ensure the overall stability of the mold core; the head of the core body 1 and the tail of the core head 2 are detachably connected, so as to facilitate the replacement of the core head 2; the detachable connection can adopt a countersunk bolt 3 whose countersunk head diameter is smaller than the diameter of the core fixing threaded hole 11, so that the bolt connection is more stable and fastened, and the countersunk head diameter is smaller than the core fixing threaded hole 11 to prevent the thread from being damaged and to smoothly enter the interior of the core body 1; it should be noted that the head of the core body 1 is A stepped hole 12 is provided in the hollow area of the core for the countersunk bolt 3 to sink into, so as to prevent the countersunk bolt 3 from falling; a core body front countersunk hole 13 for accommodating the tail of the core head 2 is provided at the front end of the stepped hole 12, and the outer shape of the tail of the core head 2 is set as a core head cylindrical surface 22 which is embedded with the core body front countersunk hole 13, so that it not only plays a positioning role for the core head 2 but also makes the bolt connection more stable; a core head column 21 is provided at the head of the core head 2 to assist in positioning the core position; the outer shapes of the core body 1 and the core head 2 are adapted to the upper mold positioning groove 41 and the lower mold positioning groove 51 to achieve the effect of matching with the rubber bellows mold.
[0016] When the utility model is used, the core body 1 is first connected to the core head 2 by the countersunk bolt 3, and then the entire core is fixed to the corresponding position of the rubber bellows mold by the core fixing threaded hole 11. After the fixing is completed, the core body 1 and the core head 2 fall into the lower mold positioning groove 51 of the lower mold 5 to cooperate with each other, and then the upper mold 4 is closed. Similarly, the upper mold positioning groove 41 cooperates with the core body 1 and the core head 2. The core head column 21 plays an auxiliary positioning role for the mold core and also plays a certain guiding role in the mold closing process, thus completing the production process. However, the core head column 21 has a small diameter and low strength. It is easy to fatigue and break during repeated production. Through the detachable connection between the core body 1 and the core head 2, when the core head column 21 breaks, there is no need to replace the entire mold core, only the core head 2 needs to be replaced, which not only reduces the manufacturing cost of the mold core, but also shortens the mold core processing cycle, which is economical and efficient.
[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A rubber bellows mold core, characterized in that: The invention comprises a core body (1) which is through-connected from head to tail. A core fixing threaded hole (11) for fixing the core body (1) to a corrugated pipe mold is provided in a hollow area at the tail of the core body (1). The head of the core body (1) is detachably connected to the tail of a core head (2). The head of the core head (2) is provided with a core head column (21). The outer shapes of the core body (1) and the core head (2) are adapted to an upper mold positioning groove (41) and a lower mold positioning groove (51).
2. The rubber bellows mold core according to claim 1, characterized in that: The detachable connection is connected by a countersunk bolt (3) whose countersunk diameter is smaller than the diameter of the mold core fixing threaded hole (11).
3. The rubber bellows mold core according to claim 2, characterized in that: A stepped hole (12) for a countersunk bolt (3) to be sunk is provided in the hollow area of the head of the core body (1).
4. The rubber bellows mold core according to claim 3, characterized in that: The front end of the stepped hole of the core body (1) is provided with a core body front countersunk hole (13) for accommodating the tail of the core head (2).
5. The rubber bellows mold core according to claim 4, characterized in that: The outer side shape of the tail of the core head (2) is configured as a core head cylindrical surface (22) that fits in with the front countersunk hole (13) of the core body.