Injection mold convenient for date stamp replacement

By using a combination structure of mounting pillars and limiting components in the injection mold, the problems of unstable installation and inconvenient replacement of date stamps in the mold are solved, achieving both stability and convenient replacement.

CN224158771UActive Publication Date: 2026-04-24LVPIN TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LVPIN TECH (SUZHOU) CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In the existing technology, date stamps are prone to installation instability due to displacement of the positioning pins during mold use, which affects normal use and makes replacement inconvenient.

Method used

The system employs a combination of mounting posts and limiting components. The mounting posts secure the date stamp to the insert, while the limiting components restrict the mounting posts to ensure stability. Additionally, through slots and limiting holes are designed to facilitate the removal and replacement of the date stamp.

Benefits of technology

It improves the installation stability of the date stamp, prevents collapse and loosening, simplifies the replacement process, and enhances the usability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold convenient for replacing a date stamp, which comprises a mold body, a sliding block is mounted in the mold body, a mold core is arranged in the mold, an insert is arranged between the sliding block and the mold core, and a date stamp body is mounted on the insert through a mounting unit; the mounting unit comprises a mounting column, a mounting hole matched with the mounting column is formed in the insert, and a limiting piece is further arranged on the insert. When the date stamp is used, the date stamp body is installed on the insert through the installation column, the situation that the date stamp body collapses in the insert can be avoided, then the state of the installation column is fixed through the limiting piece, the installation column is in the fixed state at the moment, and therefore the situation that the date stamp body collapses in the insert can be avoided; and in addition, the situation that the mounting column is loosened can be avoided, the stability of the date stamp body during mounting is improved, and the using effect is better.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that facilitates the replacement of date stamps. Background Technology

[0002] Date stamps can be mainly divided into various fonts and patterns such as date stamps, month stamps, year stamps, year-month stamps, number stamps, environmental protection stamps, letter stamps, class number stamps, and material stamps. They can be combined with different product specifications to meet user needs, and the date can be adjusted simply by turning the axle wheel. Mold date stamps are various texts and patterns left on plastic products to record the production date, brand, trademark, and service life of the plastic, which facilitates product quality management and is the main way to identify the product's future maintenance and age.

[0003] In the prior art, such as the Chinese patent with authorization announcement number CN214111248U entitled "A Precision Mold Date Stamp Structure with Intelligent Recognition," a precision mold date stamp structure with intelligent recognition is disclosed, comprising: a core disposed within a mold. The upper end of the core has an internal receiving groove, within which a date stamp assembly is embedded. The date stamp assembly includes: a date ring and a rotatable arrow pin embedded within the date ring. The top end face of the date ring has a date marking groove, and the top end face of the arrow pin has an arrow groove pointing to the date marking groove, with the top end face of the date ring flush with the top end face of the arrow pin.

[0004] The aforementioned patent allows for product marking during injection molding, with the marking integrally molded with the product to prevent damage. The date stamp structure is simple, easy to assemble and disassemble, and convenient for adjusting the marked date. In existing technologies, date stamps need to be installed on inserts. To improve stability during installation, holes are cut into the inserts to fit the date stamp, allowing for an interference fit. However, this makes it inconvenient to remove the date stamp from the insert when replacement is needed. To address this, existing technologies often use a through-hole on the north side of the insert, communicating with the date stamp mounting hole. A positioning post is placed inside the through-hole, allowing the date stamp to be mounted on the insert, facilitating removal. However, with prolonged use of the mold, the positioning post may shift, affecting the normal use of the date stamp. Utility Model Content

[0005] The purpose of this invention is to provide an injection mold that facilitates the replacement of date stamps, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy replacement of date stamps, comprising a mold body, a slider installed inside the mold body, and a mold core disposed inside the mold, with an insert disposed between the slider and the mold core, and a date stamp body mounted on the insert via an mounting unit; the mounting unit includes a mounting post, and the insert has mounting holes adapted to the mounting post, the date stamp body being mounted on the insert via the mounting post; the insert is also provided with a limiting member to limit the mounting post.

[0007] Furthermore, the limiting member includes a limiting post on one side of the sliding connection insert, and the limiting post is engaged with the mounting post by a positioning part.

[0008] Furthermore, the insert has a limiting hole adapted to the limiting post, and the limiting post is installed on the insert through the limiting hole.

[0009] Furthermore, a through groove is provided on the mounting column, and the limiting column is engaged with the mounting column through the through groove.

[0010] Furthermore, the positioning part includes an abutting surface formed on the insert, the abutting surface being located within the limiting hole; the limiting post has a bonding surface formed thereon, the bonding surface abutting against the abutting surface.

[0011] Furthermore, an adhesive is applied between the date stamp body and the mounting post.

[0012] Furthermore, the diameter of the mounting post is larger than the diameter of the limiting post.

[0013] Furthermore, the limiting post and the limiting hole are interference-fitted.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: This injection mold for easy date stamp replacement, during use, first installs the date stamp body onto the insert via a mounting post. This prevents the date stamp body from collapsing into the insert. Then, a limiting member is used to fix the mounting post, ensuring it remains in a fixed position and preventing the date stamp body from collapsing into the insert or becoming loose. This improves the stability of the date stamp body during installation and enhances its performance. When it is necessary to replace the date stamp body, simply remove the limiting member from the mounting post, causing the mounting post to slide out of the insert, thus sliding the date stamp body out of the insert for replacement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the mold structure provided for an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting position structure of the insert provided in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the installation method of the insert and mold core provided in the embodiment of this utility model;

[0019] Figure 4 A schematic diagram of the insert structure provided in an embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the installation position structure of the date stamp body provided in this embodiment of the utility model;

[0021] Figure 6 This is a partial cross-sectional view of the insert provided in an embodiment of the present utility model;

[0022] Figure 7 This is a partial structural diagram of the positioning part provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Mold body; 2. Slider; 3. Mold core; 4. Insert; 5. Mounting hole; 6. Limiting hole; 7. Mounting post; 8. Limiting post; 9. Through groove; 10. Abutting surface; 11. Fitting surface; 12. Date stamp body. Detailed Implementation

[0024] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-7This utility model provides a technical solution: an injection mold for easy replacement of date stamps, including a mold body 1, a slider 2 installed inside the mold body 1, and a mold core 3 provided inside the mold. An insert 4 is provided between the slider 2 and the mold core 3. A date stamp body 12 is installed on the insert 4 through an installation unit. The installation unit includes an installation post 7, and the insert 4 has an installation hole 5 adapted to the installation post 7. The date stamp body 12 is installed on the insert 4 through the installation post 7. A limiting member is also provided on the insert 4 to limit the installation post 7.

[0026] Specifically, this injection mold for easy replacement of date stamps includes a mold body 1, which is existing technology and includes a fixed mold and a moving mold, which will not be described in detail here. A slider 2 is installed inside the mold body 1, and a mold core 3 is also provided inside the mold. An insert 4 is provided between the slider 2 and the mold core 3. A date stamp body 12 is mounted on the insert 4 via an mounting unit to meet the injection molding requirements of the workpiece and improve the stability of the date stamp body 12 during installation. The mounting unit includes a mounting post 7, and the insert 4 has mounting holes 5 that are adapted to the mounting post 7. The date stamp body 12 is mounted on the insert 4 via the mounting post 7, thus preventing the date stamp body 12 from collapsing inside the insert 4. Simultaneously, a limiting component is provided on the insert 4 to limit the mounting post 7, thereby improving the stability of the mounting post 7 during installation. Therefore, in the use of this injection mold that facilitates the replacement of date stamps, the date stamp body 12 is first installed on the insert 4 via the mounting post 7. This prevents the date stamp body 12 from collapsing into the insert 4. Then, a limiting member is used to fix the mounting post 7 in a fixed state, thus preventing the date stamp body 12 from collapsing into the insert 4 and also preventing the mounting post 7 from becoming loose, improving the stability of the date stamp body 12 during installation and resulting in better performance. When it is necessary to replace the date stamp body 12, simply remove the limiting member from the mounting post 7, and then slide the mounting post 7 out of the insert 4, which will then slide the date stamp body 12 out of the insert 4 for replacement, further enhancing the performance.

[0027] In the embodiments provided by this utility model, the limiting member includes a limiting post 8 on one side of the sliding connection insert 4. The limiting post 8 is snapped onto the mounting post 7 by a positioning part. The positioning part includes an abutting surface 10 opened on the insert 4. The abutting surface 10 is located in the limiting hole 6. A sticker surface is opened on the limiting post 8. The sticker surface 11 abuts against the abutting surface 10, which can limit the positioning post and meet the working requirements.

[0028] In the embodiments provided by this utility model, the insert 4 is provided with a limiting hole 6 that is adapted to the limiting post 8. The limiting post 8 is installed on the insert 4 through the limiting hole 6, which can improve the stability of the limiting post 8 during installation.

[0029] In the embodiments provided by this utility model, a through groove 9 is provided on the mounting column 7, and the limiting column 8 is engaged in the mounting column 7 through the through groove 9.

[0030] In the embodiments provided by this utility model, an adhesive is applied between the date stamp body 12 and the mounting post 7. Specifically, the adhesive can be an anaerobic adhesive, which can further improve the stability of the connection between the date stamp body 12 and the mounting post 7, resulting in better performance.

[0031] In the embodiments provided by this utility model, the diameter of the mounting post 7 is larger than the diameter of the limiting post 8, thereby satisfying the limiting of the mounting post 7.

[0032] In the embodiments provided by this utility model, the limiting post 8 and the limiting hole 6 are interference-fitted.

[0033] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for easy replacement of date stamps, comprising a mold body (1), wherein a slider (2) is installed inside the mold body (1), and a mold core (3) is provided inside the mold, and an insert (4) is provided between the slider (2) and the mold core (3), characterized in that: The date stamp body (12) is mounted on the insert (4) via an installation unit; The mounting unit includes a mounting post (7), and the insert (4) has mounting holes (5) that are adapted to the mounting post (7). The date stamp body (12) is mounted on the insert (4) through the mounting post (7). The insert (4) is also provided with a limiting element to limit the mounting column (7).

2. The injection mold for facilitating replacement of a date stamp according to claim 1, wherein: The limiting component includes a limiting post (8) on one side of the sliding connecting insert (4), and the limiting post (8) is engaged with the mounting post (7) by a positioning part.

3. The injection mold for facilitating replacement of a date stamp according to claim 2, wherein: The insert (4) has a limiting hole (6) that is compatible with the limiting post (8), and the limiting post (8) is installed on the insert (4) through the limiting hole (6).

4. The injection mold of claim 3, wherein: The mounting post (7) has a through groove (9), and the limiting post (8) is engaged in the mounting post (7) through the through groove (9).

5. The injection mold for facilitating replacement of a date stamp of claim 4, wherein: The positioning part includes an abutting surface (10) formed on the insert (4), and the abutting surface (10) is located inside the limiting hole (6); The limiting post (8) has a sticker surface, and the sticker surface (11) abuts against the contact surface (10).

6. The injection mold of claim 1, wherein: The date stamp body (12) and the mounting post (7) are coated with adhesive.

7. An injection mold for easy replacement of date stamps according to claim 3, characterized in that: The diameter of the mounting post (7) is greater than the diameter of the limiting post (8).

8. An injection mold for easy replacement of date stamps according to claim 3, characterized in that: The limiting post (8) and the limiting hole (6) are interference fit.

Citation Information

Patent Citations

  • Precision mold date stamp structure capable of being intelligently recognized

    CN214111248U