CN223948397U

CN223948397U - A multichannel fashioned mould for catheter leading-in head

Info

Publication number: CN223948397U
Application number: CN202520567947.4U
Authority: CN
Inventors: 徐国良
Original assignee: Cixi Jingcheng Mould Co ltd
Current assignee: Cixi Jingcheng Mould Co ltd
Priority date: 2025-03-28
Filing date: 2025-03-28
Publication date: 2026-02-27
Anticipated expiration: 2035-03-28

Abstract

This utility model relates to a mold for multi-channel molding of urinary catheter insertion heads, including a fixed mold base plate and a fixed template. A movable template is movably mounted on the fixed template. The movable template is connected to the movable mold base plate above. A movable mold core and a fixed mold core are provided at the junction of the movable template and the fixed template. The movable mold core is fixed to the movable template, and the fixed mold core is fixed to the fixed template. The fixed mold core has a lower cavity, and the movable mold core has an upper cavity. The fixed mold core is divided into a front fixed mold core and a rear fixed mold core. A hot runner plate is also provided between the front fixed mold core and the rear fixed mold core. A row of urinary catheter insertion head cavities are arranged on the lower cavity. The beneficial effects of this utility model are: improved production efficiency, multiple molds can be used for simultaneous production, and multiple urinary catheter insertion heads can be molded in one operation. Compared with single mold production, the production cycle is greatly shortened, the output per unit time is increased, and the needs of large-scale production can be better met.

Description

A multichannel fashioned mould for catheter leading-in head

Technical Field

The utility model relates to an injection mold.

Background

The multi-channel forming mold for urinary catheter introducing head is one series of mold combination for making urinary catheter introducing head and aims at producing urinary catheter introducing head in high efficiency and high precision.

To ensure accurate and safe insertion of the catheter introducer into the body, multiple dies have been focused on high precision during the manufacturing process. The dimensional accuracy, surface finish and matching accuracy of all parts of the die are strictly controlled to ensure that the produced lead-in head meets strict medical standards.

For producing a urinary catheter introducer head member having a specific cross-sectional shape. The plastic material is continuously extruded through an extruder and shaped through a die into a desired shape, typically for the manufacture of tubular or elongated lead-in head portions.

Due to the diversity of clinical needs, the shape, size, material, etc. of the catheter introducer head are different. The multiple dies can be customized according to different design requirements, so that the catheter leading-in head with different shapes, different size specifications and different material combinations can be produced, and the requirements of various medical scenes can be met.

However, the existing partial mold has smaller production scale in the manufacturing process and cannot be suitable for large-scale industrial production.

Disclosure of utility model

In order to overcome the defect that the existing multi-channel molding die for the urinary catheter leading-in head cannot be suitable for mass industrial production, the utility model provides the multi-channel molding die for the urinary catheter leading-in head.

The utility model solves the technical problems of the prior art by adopting the technical scheme that the multi-channel molding die for the urinary catheter introducing head comprises a fixed die seat plate and a fixed die plate, wherein a movable die plate is movably arranged on the fixed die plate, an injection nozzle is arranged in the movable die plate, the upper part of the movable die plate is connected to the movable die seat plate, a movable die core and a fixed die core are arranged at the joint of the movable die plate and the fixed die plate, the movable die core is fixedly connected to the movable die plate, the fixed die core is provided with a lower cavity, the movable die core is provided with an upper cavity, the fixed die core is divided into a front fixed die core and a rear fixed die core, a hot runner plate is further arranged between the front fixed die core and the rear fixed die core, a urinary catheter introducing head cavity is arranged on the lower cavity, a feeding channel is further arranged near the hot runner plate, a main material runner connected with the injection nozzle is arranged on the hot runner plate, the main material runner core is fixedly connected to the movable die plate, the fixed die core is fixedly connected to the fixed die plate, the fixed die core is provided with a lower cavity, the movable die core is respectively, an upper die cavity is arranged on the movable die core, an upper die core is respectively, an upper die cavity is arranged between the main guide rod and a lower ejector pin, a lower ejector pin is further arranged between the main guide rod and a lower ejector pin, and a main ejector pin is arranged, and a main ejector pin, and is arranged between the main guide rod. The driving device can be a hydraulic cylinder.

In order to facilitate the movement of the ejector plate and prevent deformation, a lower top plate is further arranged below the ejector plate, the lower top plate is also arranged on the vertical guide rod in a sliding mode, and the lower top plate is driven by the driving device in a lifting mode.

In order to improve the feeding speed, two total material channels on one hot runner plate are arranged, and the number of the injection nozzles is correspondingly matched.

Preferably, sixteen urinary catheter leading-in head cavities are arranged on one front fixed die core, and sixteen side branch runners are also arranged.

Preferably, the total material channel is divided into two first, then two and four second and finally sixteen branch channels.

In order to increase productivity, two pairs of fixed templates are arranged on one fixed template, namely, two pairs of front fixed templates and two pairs of rear fixed templates are respectively arranged.

In order to improve the service life of the die, buffer cushion blocks are arranged on two sides above the fixed die plate.

When the utility model is used, the mould is firstly injected with plastic liquid into the total material channel, the total material channel enters the feeding channel through the branch channel of the hot runner plate and finally enters the urinary catheter leading-in head cavity for molding, after cooling, the movable mould plate is upward moved, and the ejector pin is upward moved to eject the workpiece out of the cavity for injection molding.

The utility model has the beneficial effects that 1, the production efficiency is improved, a plurality of dies can be used for production at the same time, a plurality of urinary catheter leading-in heads can be molded by one-time operation, compared with single die production, the production period is greatly shortened, the yield in unit time is improved, and the requirement of mass production can be better met. 2. The size and the shape of each die are precisely designed and manufactured, and under the same production process conditions, the catheter leading-in head produced by the multi-die can keep higher consistency and stability, the quality of the product is more reliable, and the overall quality and performance of the product are improved.

Drawings

FIG. 1 is a schematic view of a catheter introducer head of this utility model.

FIG. 2 is a schematic diagram in cut-away perspective of one embodiment of the present utility model.

Fig. 3 is an enlarged schematic view at a in fig. 2.

FIG. 4 is a schematic cross-sectional view of one embodiment of the present utility model.

FIG. 5 is a schematic view of a stationary platen.

FIG. 6 is a schematic diagram of a cut-away perspective view of a thimble portion.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Example 1

Referring to fig. 1 to 6, the multi-channel molding die for the urinary catheter introducing head comprises a fixed die seat plate 1 and a fixed die plate 2, wherein a movable die plate 3 is movably arranged on the fixed die plate 2, an injection nozzle 4 is arranged in the movable die plate 3, the upper part of the movable die plate 3 is connected to the movable die seat plate 5, a movable die core 6 and a fixed die core 7 are arranged at the joint of the movable die plate 3 and the fixed die plate 2, the movable die core 6 is fixedly connected to the movable die plate 3, the fixed die core 7 is fixedly connected to the fixed die plate 2, a lower die cavity 8 is arranged on the fixed die core 7, an upper die cavity 9 is arranged on the movable die core 6, the fixed die core 7 is divided into a front fixed die core 10 and a rear fixed die core 11, a hot runner plate 12 is further arranged between the front fixed die core 10 and the rear fixed die core 11, a drainage catheter introducing head 13 is arranged on the lower die cavity 8, a feeding runner 14 is further arranged at the position of the urinary catheter introducing head 13 near the hot runner plate 12, a guide rod 12 is further arranged on the lower die core 7, a main runner 16 is further connected to the main runner 16 and a sub-runner 18, a main runner 16 is further arranged on the main runner 16 and a sub-runner 18, a main runner 16 is further connected to the main runner 16 and a sub-runner 18 is arranged on the main runner 16, and a sub-runner 18 is connected to the main runner 16, and a main runner 18 is further arranged on the main runner 18, and a main runner 18 is connected to the main runner 18. The driving device can be a hydraulic cylinder.

In order to facilitate the movement of the ejector plate 18 without deformation, a lower top plate 21 is also arranged below the ejector plate 18, the lower top plate 21 is also arranged on the vertical guide rod 17 in a sliding manner, and the lower top plate 21 is driven by a driving device in a lifting manner.

For increasing the feed rate, two total runners 15 are provided on one hot runner plate 12, the number of injection nozzles 4 being correspondingly matched.

Preferably, sixteen urinary catheter leading-in head cavities 13 are arranged on one front fixed die core 10, and sixteen side branch runners 16 are also arranged.

Preferably, the total material path is divided into two, then four, and finally sixteen branch flow paths 16.

In order to increase productivity, two pairs of fixed mold plates 2 are provided on the one fixed mold plate 2, namely, two pairs of front fixed mold plate 2 and two pairs of rear fixed mold plate 2 are provided respectively.

In order to prolong the service life of the die, buffer cushion blocks are arranged on two sides above the fixed die plate 2.

When the utility model is used, the mould firstly injects plastic liquid into the total material channel, the total material channel enters the feeding channel 14 through the branch channel 16 of the hot runner plate 12 and finally enters the urinary catheter leading-in head cavity 13 for molding, after cooling, the movable mould plate 3 moves upwards, and the ejector pin moves upwards to eject the workpiece out of the cavity for injection molding.

Claims

1. A multi-channel forming die for a urinary catheter leading-in head comprises a fixed die seat plate and a fixed die plate, wherein a movable die plate is movably arranged on the fixed die plate, an injection nozzle is arranged in the movable die plate, the upper part of the movable die plate is connected to the movable die seat plate, a movable die core and a fixed die core are arranged at the joint of the movable die plate and the fixed die plate, the movable die core is fixedly connected to the movable die plate, the fixed die core is fixedly connected to the fixed die plate, a lower die cavity is arranged on the fixed die core, an upper die cavity is arranged on the movable die core, and is characterized in that the fixed die core is divided into a front fixed die core and a rear fixed die core, a hot runner plate is further arranged between the front fixed die core and the rear fixed die core, a feeding channel is further arranged on the lower die cavity, a main feeding channel is further arranged near the hot runner plate, a main feeding channel is fixedly connected with the injection nozzle, the main feeding channel is further arranged on the main feeding channel, the main feeding channel is fixedly connected with a plurality of branch channels, a lower ejector pin is fixedly connected with the fixed die plate, a lower ejector pin is arranged on the main ejector pin, a driving device is further arranged between the main ejector pin and the main ejector pin, and the main ejector pin is connected with the main ejector pin, and the main ejector pin is further arranged between the main ejector pin and the main ejector pin.

2. The multi-channel molding die for a urinary catheter introducer of claim 1 wherein a lower top plate is also provided below the ejector plate, the lower top plate also being slidably mounted on the vertical guide bar, the lower top plate being driven by a driving means.

3. The multi-channel molding die for a urinary catheter introducer of claim 1 wherein there are two total channels on a single hot runner plate, and the number of injection nozzles is correspondingly matched.

4. The multi-channel molding die for a urinary catheter introducer of claim 1 wherein sixteen urinary catheter introducer cavities are provided on a front mold core and sixteen side runners are provided.

5. The multi-channel molding die for a catheter introducer head of claim 1 wherein said total material path is one-half, then two-four, and finally sixteen branches.

6. The multi-channel molding die for a urinary catheter introducer of claim 1 wherein two pairs of fixed platens are provided on the one fixed platen, namely a front fixed platen and a rear fixed platen, each of which is provided with two pairs.

7. The multi-channel molding die for a urinary catheter introducer of claim 1 wherein cushion blocks are provided on both sides above the stationary platen.