Crankcase mold front surface hidden mounting insert pin structure

Abstract

The utility model relates to the technical field of accessory devices of injection molds, in particular to a front hidden insert pin structure of a crankcase mold, which improves the demolding efficiency, prolongs the service life of the mold, improves the dimensional accuracy of products and reduces the maintenance cost by optimizing the mounting mode and the structural design of insert pins. And therefore, the practicability is enhanced. Comprising a mold, and further comprises a hidden insert pin head, a sealing block, an insert pin rod and an inner hexagonal cap, a first through hole is formed in the top end of the mold, a first hole is formed in the bottom end of the mold, the bottom end of the hidden insert pin head is connected with the sealing block, the sealing block is connected with the insert pin rod through a thread assembly, and the bottom end of the insert pin rod is connected with the inner hexagonal cap; the sealing block and the first through hole are sleeved in a sliding mode, the inner hexagonal cap and the first hole are sleeved in a sliding mode, the insert pin rod and the first through hole are sleeved in a sliding mode, and the hidden insert pin head and the hidden insert pin wrench assembly are clamped.

Description

Technical Field

[0001] This utility model relates to the technical field of injection mold auxiliary devices, and in particular to a front-mounted recessed pin structure for a crankcase mold. Background Technology

[0002] As is well known, the crankcase is a crucial component of the engine in the automotive manufacturing industry, and its production typically employs injection molding. The design and manufacture of crankcase molds directly impact product quality and production efficiency.

[0003] Traditional crankcase molds often lead to demolding difficulties during injection molding due to the presence of reinforcing ribs and complex structures. This is especially true when insert pins need to be installed on the front side, which can easily cause problems such as sticking and deformation, resulting in poor practicality. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a front-side submerged pin structure for crankcase molds. By optimizing the installation method and structural design of the pins, it improves demolding efficiency, extends the service life of the mold, improves the dimensional accuracy of the product, and reduces maintenance costs, thereby enhancing the practicality of the front-side submerged pin structure for crankcase molds.

[0005] The present invention relates to a crankcase mold front-side submerged pin insert structure, comprising a mold, a submerged pin insert head, a sealing block, a pin insert rod, and an internal hexagonal cap. The top of the mold is provided with a first through hole, and the bottom of the mold is provided with a first hole. The bottom end of the submerged pin insert head is connected to the sealing block, the sealing block is connected to the pin insert rod through a threaded assembly, the bottom end of the pin insert rod is connected to the internal hexagonal cap, the sealing block is slidably fitted with the first through hole, the internal hexagonal cap is slidably fitted with the first hole, the pin insert rod is slidably fitted with the first through hole, and the submerged pin insert head is engaged with a submerged pin insert wrench assembly.

[0006] Preferably, the threaded assembly includes a threaded rod, the bottom end of the sealing block is connected to the threaded rod, and the top end of the insert rod is provided with a first thread, which is threadedly connected to the threaded rod.

[0007] Preferably, the submerged pin wrench assembly includes a wrench bar and two sets of handle bars. The left and right ends of the wrench bar are connected to the handle bars respectively. The bottom end of the wrench bar is provided with a locking hole and two sets of notches. The locking hole is used to engage the submerged pin head.

[0008] Preferably, the connection between the submerged insert and the sealing block is rounded.

[0009] Preferably, the bottom end of the mounting hole is provided with a 40° chamfer.

[0010] Preferably, the submersible insert, sealing block, and insert rod are all made of M2 high-speed steel.

[0011] Preferably, the submerged insert and sealing block are treated with a chrome plating process.

[0012] Preferably, the submerged insert and the sealing block are subjected to nitriding treatment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By optimizing the installation method and structural design of the insert pin, especially the connection method between the submerged insert pin head and the sealing block, insert pin rod and internal hexagonal cap, this utility model ensures the stability of the insert pin during the demolding process, avoids sticking and deformation, and significantly improves the demolding efficiency. Furthermore, the design of the submerged insert pin wrench assembly makes the disassembly and replacement of the insert pin more convenient, reduces maintenance time and cost, and thus enhances its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the sealing block and the submerged insert needle of this utility model;

[0016] Figure 3 This is a schematic diagram of the pin insert and internal hexagonal cap structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the connection structure between the wrench lever and the handle lever of this utility model;

[0018] The following are labels in the attached diagram: 1. Mold; 2. Submerged insert pin; 3. Sealing block; 4. Insert pin rod; 5. Hex socket cap; 6. Threaded rod; 7. Wrench rod; 8. Handle rod. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] like Figures 1 to 4As shown, the crankcase mold front-side submerged pin structure of this utility model includes a mold 1, a submerged pin head 2, a sealing block 3, a pin rod 4, and an internal hexagonal cap 5. The top of the mold 1 has a first through hole, and the bottom of the mold 1 has a first hole. The bottom end of the submerged pin head 2 is connected to the sealing block 3. The sealing block 3 is connected to the pin rod 4 via a threaded assembly. The bottom end of the pin rod 4 is connected to the internal hexagonal cap 5. The sealing block 3 and the first through hole are slidably fitted together, as are the internal hexagonal cap 5 and the first hole. The pin rod 4 and the first through hole are also slidably fitted together. The submerged pin head 2 is engaged with a submerged pin wrench assembly. This utility model optimizes the installation method and structural design of the pin, especially the connection method between the submerged pin head and the sealing block, pin rod, and internal hexagonal cap, ensuring the stability of the pin during demolding, avoiding sticking and deformation, and significantly improving demolding efficiency. Furthermore, the design of the submerged pin wrench assembly makes the disassembly and replacement of the pin more convenient, reducing maintenance time and costs, thereby enhancing practicality.

[0021] As a preferred embodiment of the above, the threaded assembly includes a threaded rod 6, the bottom end of the sealing block 3 is connected to the threaded rod 6, and the top end of the insert rod 4 is provided with a first threaded hole, which is threadedly connected to the threaded rod 6; the sealing block and the insert rod can be connected through the threaded rod and the first threaded hole, thereby enhancing practicality.

[0022] As a preferred embodiment of the above embodiment, the submerged pin wrench assembly includes a wrench rod 7 and two sets of handle rods 8. The left and right ends of the wrench rod 7 are respectively connected to the handle rods 8. The bottom end of the wrench rod 7 is provided with a locking hole and two sets of notches. The locking hole is engaged with the submerged pin head 2. The submerged pin head can be engaged through the first locking hole on the wrench rod, thereby facilitating the threaded connection between the threaded rod and the first threaded hole, thus enhancing practicality.

[0023] As a preferred embodiment of the above, the connection between the submerged insert 2 and the sealing block 3 is rounded; by rounding the connection, damage to the insert during demolding is reduced, thereby enhancing practicality.

[0024] As a preferred embodiment of the above, the bottom end of the mounting hole is provided with a 40° chamfer; the chamfer facilitates the mounting hole and the insert pin, thereby enhancing practicality.

[0025] As a preferred embodiment of the above, the submerged insert 2, the sealing block 3, and the insert rod 4 are all made of M2 high-speed steel; M2 high-speed steel has extremely high hardness and wear resistance, thereby enhancing practicality.

[0026] As a preferred embodiment of the above, the submerged insert 2 and the sealing block 3 are treated with a chrome plating process. The chrome plating process can effectively improve the smoothness of the insert surface, reduce friction and improve demolding efficiency, and effectively improve the corrosion resistance of the insert, thereby enhancing its practicality.

[0027] As a preferred embodiment of the above, the submerged insert 2 and the sealing block 3 are subjected to nitriding treatment; this can effectively improve the hardness and wear resistance of the chrome-plated coating surface, thereby enhancing its practicality.

[0028] The working principle of the front-side submerged pin structure of the crankcase mold of this utility model is as follows: First, the product is measured. Then, the appropriate submerged pin head and pin rod are taken out. Then, the pin tube is inserted into the first through hole through the second through hole. Then, the internal hex wrench is inserted into the internal hex cap. Then, the sealing block is inserted into the first through hole. Then, the pin head is rotated manually to make the threaded rod threadedly connected to the first threaded hole. Then, the locking hole on the pin wrench is locked with the pin head. Then, the internal hex plate and the pin wrench cooperate to tighten the threaded rod to the first threaded hole. After that, the mold can be used.

[0029] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this article are for illustrative purposes only.

[0030] In this utility model, the terms "first," "second," and "third" do not represent a specific quantity or order, but are merely used to distinguish names.

[0031] 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 improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A front-side submerged insert structure for a crankcase mold, comprising a mold (1); characterized in that, The mold (1) includes a submerged insert pin (2), a sealing block (3), a pin rod (4), and an internal hexagonal cap (5). The top of the mold (1) is provided with a first through hole, and the bottom of the mold (1) is provided with a first hole. The bottom of the submerged insert pin (2) is connected to the sealing block (3). The sealing block (3) is connected to the pin rod (4) through a threaded assembly. The bottom of the pin rod (4) is connected to the internal hexagonal cap (5). The sealing block (3) is slidably fitted with the first through hole. The internal hexagonal cap (5) is slidably fitted with the first hole. The pin rod (4) is slidably fitted with the first through hole. The submerged insert pin (2) is engaged with the submerged insert pin wrench assembly.

2. The crankcase mold front-side submerged insert structure as described in claim 1, characterized in that, The threaded assembly includes a threaded rod (6), the bottom end of the sealing block (3) is connected to the threaded rod (6), and the top end of the insert rod (4) is provided with a first thread, which is threadedly connected to the threaded rod (6).

3. The crankcase mold front-side submerged insert structure as described in claim 2, characterized in that, The submerged pin wrench assembly includes a wrench bar (7) and two sets of handle bars (8). The left and right ends of the wrench bar (7) are connected to the handle bars (8) respectively. The bottom end of the wrench bar (7) is provided with a locking hole and two sets of notches. The locking hole is engaged with the submerged pin head (2).

4. The crankcase mold front-side submerged insert structure as described in claim 3, characterized in that, The connection between the submerged insert (2) and the sealing block (3) is rounded.

5. The crankcase mold front-side submerged insert structure as described in claim 4, characterized in that, The bottom of the mounting hole is chamfered at 40°.

6. The crankcase mold front-side submerged insert structure as described in claim 5, characterized in that, The submerged insert needle (2), sealing block (3) and insert rod (4) are all made of M2 high-speed steel.

7. The crankcase mold front-side submerged insert structure as described in claim 6, characterized in that, The submerged insert (2) and sealing block (3) are treated with chrome plating.

8. The crankcase mold front-side submerged insert structure as described in claim 7, characterized in that, The submerged insert (2) and sealing block (3) are subjected to nitriding treatment.

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