Container connector rotational molding mold structure
By designing a rotational molding mold structure for container interfaces, and utilizing the threaded connection of copper inserts and high-temperature resistant rods, the container interfaces can be formed in one step. This solves the problem of secondary processing required for the sealing interfaces of rotationally molded containers, simplifies production, and reduces costs.
Patent Information
- Application Number
- CN202423232389.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing rotational molding container products require secondary processing when manufacturing sealing interfaces, which causes processing debris to enter the container interior, increasing the amount of cleaning work and potentially causing blockages or damage to the engine system.
Design a rotational molding die structure for container interfaces, using a combination of copper inserts and high-temperature resistant rods, and achieve one-time molding of the container interface through threaded connection. Combined with the vent design, it prevents problems such as air holes and poor sealing.
It achieves container interface without secondary processing, simplifies the production process, reduces production costs, and prevents leakage and blockage caused by poor sealing.
Smart Images
Figure CN223763593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rotational molding die structure, specifically a rotational molding die structure for directly molding container interfaces. Background Technology
[0002] Containers manufactured by rotational molding, such as containers for storing oil, water, and urea, generally require a sealed interface structure.
[0003] In existing technologies, when processing the aforementioned rotationally molded products with sealed interfaces, secondary processing is required, namely, drilling holes in the product after rotational molding. However, during the drilling process, processing debris is generated and enters the container, increasing the workload of subsequent debris removal. If the debris is not completely removed, it may cause blockages during the liquid suction process during product operation, or even damage to the engine system. Utility Model Content
[0004] This utility model proposes a container interface rotational molding mold structure, which aims to overcome the above-mentioned shortcomings of the existing technology and realize a container with a sealed interface in one step of rotational molding.
[0005] The technical solution of this utility model is a container interface rotational molding mold structure, which includes a copper insert and a high-temperature resistant rod. The lower outer side of the copper insert has an external threaded connection part, and a pre-embedded insert is threadedly connected to the external threaded connection part. A left-hand threaded hole is provided at the center of the lower end of the copper insert. The top of the high-temperature resistant rod is threaded into the left-hand threaded hole through a threaded connection part that mates with the left-hand threaded hole. The mold is set on the A-step surface in the middle of the copper insert above the external threaded connection part. The product body is formed on the outer surface of the copper insert, the pre-embedded insert, and the high-temperature resistant rod below the mold. The left-hand threaded hole at the lower end of the copper insert connects to the high-temperature resistant rod, realizing one-time molding of the container interface position of the product body.
[0006] Preferably, the copper insert has a vertically penetrating vent hole A at its center, the high-temperature rod has a vertically penetrating vent hole B at its center, a first vent hole perpendicularly communicating with vent hole A is connected between the top of the external threaded connection and the top of the left-hand threaded hole, and a second vent hole perpendicularly communicating with vent hole A is opened on the copper insert above the A-step surface. This prevents the pre-embedded insert from generating pores during the rotational molding process, which could lead to poor sealing and leakage.
[0007] Preferably, the outer side of the top of the external threaded connection part is provided with a step B surface whose outer diameter is smaller than that of step A but larger than that of the external threaded connection part. This allows the embedded insert to be lower than the sealing ring groove, preventing the sealing ring from being cut by the embedded insert when it is installed in the sealing ring groove of the product body.
[0008] Preferably, the high-temperature resistant rod is a PEEK rod or a Teflon rod.
[0009] The advantages of this utility model are: reasonable structural design, which can realize one-time rotational molding of the interface of the rotational molding container without secondary processing, which can effectively simplify production and reduce production costs. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of an embodiment of the container interface produced by the rotational molding die structure of the container interface of this utility model.
[0011] Figure 2 This is a cross-sectional view of the container interface rotational molding die structure of this utility model when the container interface is formed.
[0012] Figure 3 This is a schematic diagram of the connection structure between the container interface rotational molding mold and the pre-embedded insert of this utility model.
[0013] Figure 4 This is a schematic diagram of the structure of the rotational molding die for the container interface of this utility model.
[0014] Figure 5 yes Figure 4 Longitudinal sectional view.
[0015] Figure 6 This is a schematic diagram of the container interface rotational molding mold of this utility model from another angle.
[0016] In the figure, 1 is the product body, 11 is the sealing ring groove, 12 is the through hole, 13 is the embedded insert, 2 is the mold, 3 is the copper insert rod, 31 is the left-hand threaded hole, 32 is the external threaded connection part, 33 is the first vent hole, 34 is the second vent hole, 35 is the A vent hole, 36 is the A step surface, 37 is the B step surface, 4 is the high temperature resistant rod, and 41 is the B vent hole. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.
[0018] like Figure 1-6As shown, a container interface rotational molding mold structure includes a copper insert 3 and a high-temperature resistant rod 4. The lower outer side of the copper insert 3 has an external threaded connection part 32, and a pre-embedded insert 13 is threadedly connected to the external threaded connection part 32. The lower center of the copper insert 3 has a left-hand threaded hole 31. The top of the high-temperature resistant rod 4 is threadedly connected to the left-hand threaded hole 31 through a threaded connection part that mates with the left-hand threaded hole 31. The mold 2 is set on the A-step surface 36 of the middle part of the copper insert 3 above the external threaded connection part 32. The product body 1 is formed on the copper insert 3 and the pre-embedded insert 4 below the mold 2. On the outer surfaces of the embedded part 13 and the high-temperature rod 4, the copper insert 3 has an A vent hole 35 that runs vertically through the center, and the high-temperature rod 4 has a B vent hole 41 that runs vertically through the center. The top of the external threaded connection part 32 is connected to the top of the left-hand threaded hole 31, and a first vent hole 33 that is perpendicular to the A vent hole 35 is connected. The copper insert 3 above the A step surface 36 has a second vent hole 34 that is perpendicular to the A vent hole 35. The outer side of the top of the external threaded connection part 32 has a B step surface 37 with an outer diameter smaller than the outer diameter of the A step surface 36 and larger than the outer diameter of the external threaded connection part 32.
[0019] Based on the above structure, a left-hand threaded hole 31 is used at the lower end of the copper insert 3 to connect to the high-temperature resistant rod 4, achieving one-time molding of the container interface position of the product body 1. The A vent 35 and B vent 41 at the center of the copper insert 3 and the high-temperature resistant rod 4 can prevent the pre-embedded insert 13 from generating air holes during the rotational molding process, which could lead to leakage due to poor sealing. The B step surface 37 is set between the copper insert 3 and the pre-embedded insert 13, which allows the pre-embedded insert 13 to be lower than the sealing ring groove 11, preventing the sealing ring from being cut by the pre-embedded insert 13 when it is installed in the sealing ring groove 11 of the product body 1. Example
[0020] The high-temperature resistant rod 4 is a PEEK rod or a Teflon rod.
[0021] The height of step B, surface 37, is 0.5mm.
[0022] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.
[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.
Claims
1. A container interface rotational moulding mould structure characterised in that, It includes copper inserting rod (3) and high temperature resistant stick (4), wherein the outer side of lower end of copper inserting rod (3) is outer thread connecting part (32), pre-buried insert (13) is threadedly connected on outer thread connecting part (32), left-hand thread hole (31) is arranged at the center of lower end of copper inserting rod (3), high temperature resistant stick (4) is threadedly connected in left-hand thread hole (31) through the thread connecting part matched with left-hand thread hole (31) at the top of high temperature resistant stick (4), mold (2) is arranged on A step surface (36) in the middle of copper inserting rod (3) above outer thread connecting part (32), product body (1) is formed on the outer side surface of copper inserting rod (3), pre-buried insert (13) and high temperature resistant stick (4) below mold (2).
2. A container interface roto-moulding mould structure as claimed in claim 1 wherein, The center of copper inserting rod (3) is provided with A ventilation hole (35) penetrating up and down, the center of high temperature resistant stick (4) is provided with B ventilation hole (41) penetrating up and down, the top end of outer thread connecting part (32) and the top end of left-hand thread hole (31) are connected with first ventilation hole (33) vertically communicating with A ventilation hole (35), the second ventilation hole (34) vertically communicating with A ventilation hole (35) is formed on the top of copper inserting rod (3) above A step surface (36).
3. A container interface roto-moulding mould structure as claimed in claim 1 wherein, The top end of outer thread connecting part (32) is provided with B step surface (37) with outer diameter less than the outer diameter of A step surface (36) and greater than the outer diameter of outer thread connecting part (32).
4. A container interface roto-moulding mould structure as claimed in claim 1 wherein, The high temperature resistant stick (4) is PEEK stick or Teflon stick.