Precise mold structure

Abstract

The utility model relates to the technical field of dies, in particular to a precise die structure which comprises lower die ball guide pillars and straight rod type guide pillars, an upper die is arranged on the upper side of the lower die, ball guide pillars are arranged at four corners of the lower end of the upper die, ball guide sleeves are arranged at the upper end of the lower die corresponding to the ball guide pillars, and a plurality of straight rod type guide pillars are arranged at the upper end of the lower die. When the upper die is used and the upper die is closed, the ball guide pillar is aligned with the ball guide sleeve to realize pre-positioning, and at the moment, the straight rod type guide pillar enters the self-lubricating guide sleeve on the upper die and is matched with the guide effect of the ball guide pillar structure, so that the balance of the upper die during die closing is improved, the stability of the die is improved, and the service life of the die is prolonged. When the die is in normal production, due to the fact that the sliding fit precision of the straight rod type guide pillar and the self-lubricating type guide sleeve is higher than that of the ball guide pillar and the ball guide sleeve, abrasion of the ball guide pillar is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a precision mold structure. Background Technology

[0002] A mold is a set of molds and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. In short, a mold is a tool used to create shaped objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly achieves the shaping of objects by changing the physical state of the material being molded.

[0003] For precision molds, there are three key indicators: material, part machining accuracy, and mold guiding accuracy. Existing mold structures use ball bearing guides, with a small number using straight rod self-lubricating guides. Both structures have their advantages and disadvantages: ball bearing guides are simple and convenient to use, allowing for quick and easy mold closing and opening, but their guiding accuracy is not as high as straight rod guides, especially after prolonged use where noticeable wear marks from the ball bearings appear on the guide pillars and guide sleeves. Straight rod self-lubricating guides offer high guiding accuracy, but require excellent operator skill. Because of the sliding fit, the mold needs excellent balance during closing and opening to avoid jamming. If tapping is used, the guiding accuracy will deteriorate over time. Therefore, the new structure combines the advantages of both, ensuring high guiding accuracy while providing easy operation. Thus, this invention provides a precision mold structure to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a precision mold structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A precision mold structure includes a lower mold ball guide post and straight rod guide posts. An upper mold is provided on the upper side of the lower mold. Ball guide posts are provided at the four corners of the lower end of the upper mold. Ball guide sleeves are provided at the upper end of the lower mold corresponding to the ball guide posts. Several straight rod guide posts are provided at the upper end of the lower mold. Self-lubricating guide sleeves are provided at the lower end of the upper mold corresponding to the straight rod guide posts.

[0007] Specifically, when the upper mold is closing, the ball guide post is aligned with the ball guide sleeve to achieve pre-positioning. At this time, the straight rod guide post enters the self-lubricating guide sleeve on the upper mold. With the guiding effect of the ball guide post structure, the balance of the upper mold during mold closing is improved, and the smooth entry of the straight rod guide post is guaranteed.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: When the upper mold is closed, the ball guide post is aligned with the ball guide sleeve to achieve pre-positioning. At this time, the straight rod guide post enters the self-lubricating guide sleeve on the upper mold. With the guiding effect of the ball guide post structure, the balance of the upper mold during mold closing is improved, the stability of the mold is improved, and the smooth entry of the straight rod guide post is guaranteed. When the mold is in normal production, the sliding fit between the straight rod guide post and the self-lubricating guide sleeve is more precise than that between the ball guide post and the ball guide sleeve, thereby reducing the wear of the ball guide post. Attached Figure Description

[0009] Figure 1 This is a structural diagram of a precision mold.

[0010] In the diagram: 1. Lower mold; 2. Upper mold; 3. Ball guide post; 4. Ball guide sleeve; 5. Straight rod type guide post; 6. Self-lubricating type guide sleeve. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0012] In this invention, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use this invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of this invention with unnecessary detail. Therefore, this invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

[0013] Example

[0014] Please see Figure 1In this embodiment of the present invention, a precision mold structure includes a lower mold 1 with ball guide pillars 3 and straight rod guide pillars 5. An upper mold 2 is provided on the upper side of the lower mold 1. Ball guide pillars 3 are provided at the four corners of the lower end of the upper mold 2. A ball guide sleeve 4 is provided on the upper end of the lower mold 1 corresponding to the ball guide pillars 3. A plurality of straight rod guide pillars 5 are provided on the upper end of the lower mold 1. A self-lubricating guide sleeve 6 is provided on the lower end of the upper mold 2 corresponding to the straight rod guide pillars 5.

[0015] Specifically, when the upper mold 2 is closing, the ball guide post 3 is aligned with the ball guide sleeve 4 to achieve pre-positioning. At this time, the straight rod guide post 5 enters the self-lubricating guide sleeve 6 on the upper mold 2. With the guiding effect of the ball guide post 3 structure, the balance of the upper mold 2 during mold closing is improved, and the smooth entry of the straight rod guide post 5 is guaranteed.

[0016] The working principle of this utility model is as follows:

[0017] When this utility model is in use, during the mold closing process of the upper mold 2, the ball guide post 3 is aligned with the ball guide sleeve 4 to achieve pre-positioning. At this time, the straight rod type guide post 5 enters the self-lubricating type guide sleeve 6 on the upper mold 2. With the guiding effect of the ball guide post 3 structure, the balance of the upper mold 2 during mold closing is improved, the stability of the mold is improved, and the smooth entry of the straight rod type guide post 5 is guaranteed. When the mold is in normal production, because the sliding fit between the straight rod type guide post 5 and the self-lubricating type guide sleeve 6 is more precise than the sliding fit between the ball guide post 3 and the ball guide sleeve 4, the wear of the ball guide post 3 is reduced.

[0018] 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 precision mold structure comprising a lower mold (1) ball guide pillar (3) and a straight rod type guide pillar (5), characterized in that, The lower mold (1) is provided with an upper mold (2) on the upside, the upper mold (2) is provided with ball guide columns (3) at the four corners of the lower end, the lower mold (1) is provided with ball guide sleeves (4) at the corresponding ball guide columns (3) of the upper end, the lower mold (1) is provided with a plurality of straight rod type guide columns (5) at the upper end, and the upper mold (2) is provided with self-lubricating type guide sleeves (6) at the corresponding straight rod type guide columns (5) of the lower end.

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