An oil passage conversion block for a press mold

By designing an oil circuit conversion block for molding dies, the pipeline interface between the die and the external press is simplified, the problem of too many oil inlets and outlets is solved, and efficient hot oil circulation heating is achieved.

CN224446525UActive Publication Date: 2026-07-03JIANGSU LINGYI INTELLIGENT MANUFACTURING NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LINGYI INTELLIGENT MANUFACTURING NEW MATERIALS CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-03

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  • Figure CN224446525U_ABST
    Figure CN224446525U_ABST
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Abstract

The utility model discloses a kind of oil circuit conversion blocks for mould pressing mould, belong to mould pressing technology field, a kind of oil circuit conversion blocks for mould pressing mould, including oil circuit conversion block, the first oil circuit and second oil circuit of oil circuit conversion block, the first oil circuit includes first oil groove, second oil groove, third oil groove and fourth oil groove, the first oil groove is fixed with first plug to the outward one end of second oil groove, third oil groove and fourth oil groove, the second oil circuit includes fifth oil groove, sixth oil groove and seventh oil groove, the fifth oil groove is fixed with second plug to the outward one end of sixth oil groove and seventh oil groove, the first press oil circuit interface and second press oil circuit interface are set up in the front side of oil circuit conversion block.The utility model greatly simplifies the pipeline interface connected with external press, solves the problem of excessive oil inlet and oil outlet, the time of pipe insertion and extraction is also too long, and the oil inlet and oil outlet of equipment supporting cannot satisfy the demand of mould oil inlet.
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Description

Technical Field

[0001] This utility model belongs to the field of molding technology, and more specifically, it relates to an oil circuit conversion block for molding dies. Background Technology

[0002] Compression molding is a widely used method in composite material molding. The heating methods for compression molds typically include three types: heating via upper and lower hot plates of the press, heating via a heating medium inside the mold, or internal electric heating. In the field of fiber composite material manufacturing, especially in large-scale mass production, compression molds generally use hot oil for internal heating. Existing oil circuit conversion blocks for compression molds have many heating pipes inside the mold to ensure heating efficiency and uniformity, resulting in a large number of oil inlets and outlets on the mold, such as 8 inlets and 8 outlets. However, the corresponding compression molding equipment may typically have 2 oil inlets and 2 oil outlets, i.e., 2 inlets and 2 outlets, or 3 inlets and 3 outlets, or 4 inlets and 4 outlets, etc. Too many oil inlets and outlets will also lead to excessively long insertion and removal times. The oil inlets and outlets provided by the equipment cannot meet the oil inlet requirements of the mold. Therefore, an oil circuit conversion block for compression molds is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an oil circuit conversion block for molding dies, which greatly simplifies the pipeline interface connected to an external press, thereby solving the problems mentioned in the background art, such as excessive oil inlets and outlets, excessively long pipe insertion and removal times, and the inability of the equipment's matching oil inlets and outlets to meet the oil inlet requirements of the mold.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil circuit conversion block for a molding die, comprising an oil circuit conversion block, a first oil circuit, and a second oil circuit. The first oil circuit includes a first oil groove, a second oil groove, a third oil groove, and a fourth oil groove. A first plug is fixed to the outward end of the first oil groove, the second oil groove, the third oil groove, and the fourth oil groove. The second oil circuit includes a fifth oil groove, a sixth oil groove, and a seventh oil groove. A second plug is fixed to the outward end of the fifth oil groove, the sixth oil groove, and the seventh oil groove. A first press oil circuit interface and a second press oil circuit interface are provided on the front side of the oil circuit conversion block. A first mold oil circuit interface group and a second mold oil circuit interface group are provided on the rear side of the oil circuit conversion block. The first mold oil circuit interface group includes five first interfaces, and the second mold oil circuit interface group includes five second interfaces. Two lifting eye holes are provided on the bottom surface of the oil circuit conversion block.

[0005] As a preferred embodiment of this utility model, the first oil groove, the second oil groove, and the third oil groove are all parallel to the long side of the oil circuit conversion block, and the fourth oil groove is parallel to the short side of the oil circuit conversion block.

[0006] As a preferred embodiment of this utility model, the fifth and sixth oil grooves are parallel to the short side of the oil circuit conversion block, and the seventh oil groove is parallel to the long side of the oil circuit conversion block.

[0007] As a preferred embodiment of this utility model, the interior of the first press oil circuit interface is connected to the interior of the first oil circuit.

[0008] As a preferred embodiment of this utility model, the interior of the second press oil circuit interface is connected to the interior of the second oil circuit.

[0009] As a preferred embodiment of this utility model, the interiors of the five first interfaces are all connected to the interior of the first oil circuit.

[0010] As a preferred embodiment of this utility model, the interiors of the five second interfaces are all connected to the interiors of the second oil circuit.

[0011] This utility model provides an oil circuit conversion block for molding dies, which has the following beneficial effects:

[0012] This oil circuit conversion block for molding dies greatly simplifies the pipeline interfaces connected to external presses, and solves the problems of excessive oil inlets and outlets, excessively long pipe insertion and removal times, and the inability of the equipment's matching oil inlets and outlets to meet the oil inlet requirements of the mold.

[0013] 2. The oil circuit conversion block for this molding die has a reasonable and compact structure and good performance. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of an oil circuit conversion block for a molding die according to the present invention.

[0015] Figure 2 This is a schematic diagram of the rear side of the overall structure of an oil circuit conversion block for a molding die according to the present invention.

[0016] Figure 3 This is a side view of the overall structure of an oil circuit conversion block for a molding die according to the present invention.

[0017] Figure 4 This is a cross-sectional structural diagram of an oil circuit conversion block for a molding die according to the present invention.

[0018] In the diagram: 1. Oil circuit conversion block; 2. First oil circuit; 21. First oil groove; 22. Second oil groove; 23. Third oil groove; 24. Fourth oil groove; 3. Second oil circuit; 31. Fifth oil groove; 32. Sixth oil groove; 33. Seventh oil groove; 4. First plug; 5. Second plug; 6. First press oil circuit interface; 7. Second press oil circuit interface; 8. First mold oil circuit interface group; 81. First interface; 9. Second mold oil circuit interface group; 91. Second interface; 10. Lifting eye hole. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: an oil circuit conversion block for a molding die, including an oil circuit conversion block 1, a first oil circuit 2 and a second oil circuit 3. The first oil circuit 2 includes a first oil groove 21, a second oil groove 22, a third oil groove 23 and a fourth oil groove 24. A first plug 4 is fixed to the outward end of the first oil groove 21, the second oil groove 22, the third oil groove 23 and the fourth oil groove 24. The second oil circuit 3 includes a fifth oil groove 31, a sixth oil groove 32 and a seventh oil groove 33. A second plug 5 is fixed to the outward end of the fifth oil groove 31, the sixth oil groove 32 and the seventh oil groove 33. A first press oil circuit interface 6 and a second press oil circuit interface 7 are provided on the front side of the oil circuit conversion block 1. A first mold oil circuit interface group 8 and a second mold oil circuit interface group 9 are provided on the rear side of the oil circuit conversion block 1. The mold oil circuit interface group 8 includes five first interfaces 81, the second mold oil circuit interface group 9 includes five second interfaces 91, the bottom surface of the oil circuit conversion block 1 has two lifting ring holes 10, the first oil groove 21, the second oil groove 22 and the third oil groove 23 are all parallel to the long side of the oil circuit conversion block 1, the fourth oil groove 24 is parallel to the short side of the oil circuit conversion block 1, the fifth oil groove 31 and the sixth oil groove 32 are all parallel to the short side of the oil circuit conversion block 1, the seventh oil groove 33 is parallel to the long side of the oil circuit conversion block 1, the interior of the first press oil circuit interface 6 is connected to the interior of the first oil circuit 2, the interior of the second press oil circuit interface 7 is connected to the interior of the second oil circuit 3, the interior of each of the five first interfaces 81 is connected to the interior of the first oil circuit 2, and the interior of each of the five second interfaces 91 is connected to the interior of the second oil circuit 3.

[0023] Two oil pipes are connected to the first press oil circuit interface 6 and the second press oil circuit interface 7, respectively. The other ends of the two oil pipes are connected to the input and output ports of the external press, respectively. Five first interfaces 81 are connected to the input interface of the molding die's oil circuit pipeline via oil pipes, and five second interfaces 91 are connected to the output interface of the molding die's oil circuit pipeline via oil pipes. During operation, the external press delivers hot oil to the first oil circuit 2 through the oil pipes and the first press oil circuit interface 6, and then delivers it to the molding die through the five first interfaces 81 and the oil pipes. The oil is heated in the oil pipeline, thus heating the molding die. The cooled oil is transported to the inside of the second oil circuit 3 through the oil pipe and the second interface 91, and flows back to the inside of the external press through the second interface 91 and the oil pipe connected thereto. During this process, the cold oil in the oil pipe is heated again. The hot oil forms a circulation through the external press. Through the above process, the pipeline interface connected to the external press is greatly simplified, and the problems of too many oil inlets and outlets, the long time for inserting and removing the pipes, and the inability of the oil inlets and outlets of the equipment to meet the oil inlet requirements of the mold are solved.

[0024] The specific usage and function of this embodiment: This utility model connects to the first press oil circuit interface 6 and the second press oil circuit interface 7 via two oil pipes respectively. The other ends of the two oil pipes are connected to the input port and output port of the external press respectively. Five first interfaces 81 are connected to the input interface of the oil circuit pipeline of the molding die via oil pipes. Five second interfaces 91 are connected to the output interface of the oil circuit pipeline of the molding die via oil pipes. During operation, the external press delivers hot oil to the inside of the first oil circuit 2 via oil pipes and the first press oil circuit interface 6. It then delivers the hot oil to the oil circuit pipeline of the molding die via the five first interfaces 81 and oil pipes, thereby heating the molding die. The cooled oil is delivered to the inside of the second oil circuit 3 via oil pipes and the second interfaces 91. It then flows back to the inside of the external press via the second interfaces 91 and oil pipes. During this process, the cold oil in the oil pipes is heated again. The hot oil circulates through the external press. Through the above process, the pipeline interfaces connected to the external press are greatly simplified.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic circuit conversion block for a molding die, comprising a hydraulic circuit conversion block (1), characterized in that: The oil circuit switching block (1) has a first oil circuit (2) and a second oil circuit (3). The first oil circuit (2) includes a first oil groove (21), a second oil groove (22), a third oil groove (23), and a fourth oil groove (24). A first plug (4) is fixed to the outward end of the first oil groove (21), the second oil groove (22), the third oil groove (23), and the fourth oil groove (24). The second oil circuit (3) includes a fifth oil groove (31), a sixth oil groove (32), and a seventh oil groove (33). The fifth oil groove (31) and the sixth oil groove (32) are connected to each other. The seventh oil tank (33) has a second plug (5) fixed at one end facing outward. The front side of the oil circuit conversion block (1) is provided with a first press oil circuit interface (6) and a second press oil circuit interface (7). The rear side of the oil circuit conversion block (1) is provided with a first mold oil circuit interface group (8) and a second mold oil circuit interface group (9). The first mold oil circuit interface group (8) includes five first interfaces (81), and the second mold oil circuit interface group (9) includes five second interfaces (91). The bottom surface of the oil circuit conversion block (1) has two lifting ring holes (10).

2. An oil passage switching block for a press mold according to claim 1, characterized in that: The first oil groove (21), the second oil groove (22), and the third oil groove (23) are all parallel to the long side of the oil circuit conversion block (1), and the fourth oil groove (24) is parallel to the short side of the oil circuit conversion block (1).

3. The oil passage switching block for a press mold according to claim 1, characterized by: The fifth oil groove (31) and the sixth oil groove (32) are both parallel to the short side of the oil circuit conversion block (1), and the seventh oil groove (33) is parallel to the long side of the oil circuit conversion block (1).

4. The oil passage switching block for a press mold according to claim 1, characterized by: The interior of the first press oil circuit interface (6) is connected to the interior of the first oil circuit (2).

5. The oil passage switching block for a press mold according to claim 1, characterized in that: The interior of the second press oil circuit interface (7) is connected to the interior of the second oil circuit (3).

6. The oil passage switching block for a press mold according to claim 1, characterized in that: The interior of each of the five first interfaces (81) is connected to the interior of the first oil passage (2).

7. The oil passage switching block for a press mold according to claim 1, characterized by: The interiors of the five second interfaces (91) are all connected to the interior of the second oil passage (3).