双腔室玻璃材质预灌封注射器导流槽加热压制成型装置

By using the cooperative structure of the punch and die, the heating nozzle heats the glass syringe through the groove, and the punch and groove are used to form and assist in demolding. This solves the deformation and demolding problems in the forming of the glass tube guide channel, and achieves reliable guide channel forming.

CN224513382UActive Publication Date: 2026-07-17SHANDONG ZIBO MINKANG PHARM PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG ZIBO MINKANG PHARM PACKING CO LTD
Filing Date
2026-06-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the glass tube guide channel forming process has problems such as deformation caused by flame heating, forming failure caused by the movement of the inner and outer wall arc structure, and difficulty in demolding.

Method used

The glass syringe is fixed by a combination of a punch and a die, with the punch and the groove structure fixing the syringe. Only the heating nozzle is heated through the groove. The punch and the groove are used to form the syringe and assist in demolding. The flame distance is controlled by the linkage movement of the heating nozzle and the die, thus forming the guide channel.

Benefits of technology

This effectively prevents the glass syringe from softening as a whole, ensuring successful molding, and simplifies the demolding process, improving the reliability and efficiency of molding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224513382U_ABST
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Abstract

本实用新型属于玻璃成型加工领域，尤其涉及双腔室玻璃材质预灌封注射器导流槽加热压制成型装置，用于注射器针筒导流槽的成型，包括凸模以及与凸模配合的凹模，凸模包括压杆以及突出压杆的凸块，凹模包括模座以及贯穿模座的凹槽，凸块对准凹槽，凹模下端设置有加热喷头，凹模移动或凸模移动使得凸块与凹槽相互靠近，加热喷头喷出的加热火焰被凹模阻挡，仅一部分加热火焰能够穿过凹槽并加热注射器针筒的加热区域，使得该区域软化，凸模下端的第一弧形结构与凹模上的第二弧形结构将注射器针筒进行固定，凸模的凸块和凹模的凹槽配合完成挤压，脱模介质通过凸模的通道进入导流槽，辅助凸块与导流槽完成脱模处理。
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Claims

1. A heating and pressing molding device for a pre-filled glass syringe guide groove in a dual-chamber design, used for molding the guide groove of a syringe barrel, characterized in that... It includes a punch (3) and a die (4) that cooperates with the punch (3). The punch (3) includes a pressure bar and a protrusion (15) that protrudes from the pressure bar. The die (4) includes a die base and a groove (18) that penetrates the die base. The protrusion (15) is aligned with the groove (18). The lower end of the concave mold (4) is provided with a heating nozzle (6), and the movement of the concave mold (4) or the convex mold (3) causes the protrusion (15) and the groove (18) to move closer to each other.

2. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 1, characterized in that: It also includes a support plate (11), on which an upper connecting seat (5) and a lower connecting seat (8) are arranged below the upper connecting seat (5). The die (4) is arranged on the upper connecting seat (5), and an air supply pipe (7) is arranged on the lower connecting seat (8). The heating nozzle (6) is arranged at the upper end of the air supply pipe (7).

3. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 2, characterized in that: A locking nut (9) is provided on the lower connecting seat (8), and the locking nut (9) fixes the gas pipe (7) on the lower connecting seat (8).

4. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 2, characterized in that: The support plate (11) is provided with a slider (12), and a drive rod (14) is provided on the slider (12). The slider (12) is slidably mounted on the slide rail (13). The drive rod (14) is connected to the drive device. The drive device drives the support plate (11) to move, so that the die (4) and the heating nozzle (6) move together with the support plate (11).

5. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 2, characterized in that: A base (10) is provided at the lower end of the support plate (11).

6. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 1, characterized in that: The punch (3) is provided with a connecting block (2), and the connecting block (2) is provided with a fixing block (1).

7. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 1, characterized in that: The punch (3) is provided with a channel (16) for the flow of demolding medium. The channel (16) passes through the protrusion (15) so that the demolding medium flows out from the protrusion (15).

8. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 7, characterized in that: The punch (3) is provided with a connector (17).

9. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 1, characterized in that: The heating nozzle (6) is provided with linear nozzles, which are aligned with the groove (18).

10. The heating and pressing molding device for the guide groove of the dual-chamber glass pre-filled syringe as described in claim 1, characterized in that: The pressure rod is arranged above the mold base, and the lower end of the pressure rod is a first arc-shaped structure (19). The upper end of the mold base is provided with a second arc-shaped structure (20) that cooperates with the syringe barrel.