Multi-channel forming die for catheter leading-in head

Abstract

The utility model relates to a multi-channel forming mould for a ureter leading-in head, which comprises a fixed mould seat plate and a fixed mould plate, a movable mould plate is movably arranged on the fixed mould plate, the upper part of the movable mould plate is connected to a movable mould seat plate, a movable mould core and a fixed mould core are arranged at the joint of the movable mould plate and the fixed mould plate, and the movable mould plate and the fixed mould plate are connected with each other. The movable mold core is fixedly connected to the movable mold plate, the fixed mold core is fixedly connected to the fixed mold plate, a lower cavity is formed in the fixed mold core, an upper cavity is formed in the movable mold core, the fixed mold core is divided into a front fixed mold core and a rear fixed mold core, and a hot runner plate is further arranged between the front fixed mold core and the rear fixed mold core. The utility model has the beneficial effects that the production efficiency is improved, a plurality of moulds can be used for producing at the same time, a plurality of ureter leading-in heads can be formed by one-time operation, and compared with single-mould production, the production cycle is greatly shortened, the yield in unit time is improved, the production cost is reduced, and the production efficiency is improved. And the requirements of large-scale production can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of injection moulds. BACKGROUND

[0002] The multi-channel forming die of urinary catheter introduction head is a series of die combinations for manufacturing urinary catheter introduction head, aiming at efficiently and accurately producing urinary catheter introduction heads meeting different needs.

[0003] To ensure that the urinary catheter introduction head can be accurately and safely inserted into the human body, the multi-die pays attention to high precision during the manufacturing process. The dimensional accuracy, surface finish and fitting accuracy of each part of the die are strictly controlled to ensure that the produced introduction head meets strict medical standards.

[0004] It is used for producing urinary catheter introduction head parts with specific cross-sectional shapes. The plastic raw materials are continuously extruded by an extruder and formed into the required shape by a die, which is usually used for manufacturing some tubular or strip-shaped introduction head parts.

[0005] Due to the diversity of clinical needs, the shape, size and material of the urinary catheter introduction head are different. The multi-die can be customized according to different design requirements to produce urinary catheter introduction heads with different shapes, different size specifications and different material combinations, meeting the needs of various medical scenarios.

[0006] However, some existing dies have small production scale during the manufacturing process, which cannot adapt to mass industrial production. UTILITY MODEL CONTENT

[0007] In order to overcome the deficiency that the existing multi-channel forming die for urinary catheter introduction head cannot adapt to mass industrial production, the utility model provides a multi-channel forming die for urinary catheter introduction head.

[0008] The utility model discloses a technical scheme that solves its technical problems: a kind of multi-channel forming mould for catheter introduction head, including one fixed mould base plate and fixed mould plate, the movable fixed mould plate is equipped with movable mould plate, the movable mould plate is equipped with injection molding nozzle, the movable mould plate is connected on movable mould base plate above, the place where the movable mould plate and fixed mould plate are engaged is equipped with movable mould and fixed mould, the movable mould is fixedly connected on movable mould plate, the fixed mould is fixedly connected on fixed mould plate, the fixed mould is equipped with lower cavity on, the movable mould is equipped with upper cavity, the fixed mould is divided into front fixed mould and rear fixed mould, one hot runner plate is also equipped between the front fixed mould and rear fixed mould, a row of catheter introduction head cavity is arranged on lower cavity, the catheter introduction head cavity is also equipped with feeding channel near hot runner plate, total material channel that is engaged with injection molding nozzle is equipped on hot runner plate, the total material channel is divided into multiple branch channels, and branch channel is engaged with the feeding channel of lower cavity;Vertical guide rod is equipped between fixed mould base plate and fixed mould plate, vertical guide rod is movably equipped with ejector plate, main ejector pin and vice ejector pin are equipped on ejector plate, main ejector pin enters the lower side of total material channel, vice ejector pin enters the lower side of branch channel and catheter introduction head cavity;Ejector plate is also connected with driving device that drives ejector plate to go up.The driving device can select hydraulic cylinder.

[0009] In order to facilitate the movement of the ejector plate without deformation, a lower ejector plate is also provided below the ejector plate, which is also slidably arranged on the vertical guide rod, and the lower ejector plate is driven by the driving device.

[0010] In order to improve the feeding speed, two total material channels are provided on one hot runner plate, and the number of injection molding nozzles is correspondingly matched.

[0011] One preferred embodiment is that sixteen catheter introduction head cavities are provided on one front fixed mould, and sixteen branch channels are also provided on one side.

[0012] One preferred embodiment is that the total material channel is first divided into two, then divided into four, and finally divided into sixteen branch channels.

[0013] In order to increase the production capacity, two pairs of fixed mould plates are provided on one fixed mould plate, i.e., two pairs of front fixed mould plates and two pairs of rear fixed mould plates.

[0014] In order to improve the service life of the mould, buffer pads are provided on both sides of the fixed mould plate above.

[0015] In use, the mould first injects 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 catheter introduction head cavity to form, and after cooling, the movable mould plate goes up, the ejector pin goes up to eject the workpiece from the cavity to complete injection molding.

[0016] The utility model discloses a beneficial effect lies in: 1, improve the production efficiency, and multiple moulds can carry out production simultaneously, and a plurality of urethral catheter introduction head can be shaped in one operation, compares single mould production, and the production cycle is greatly shortened, and the output in unit time is improved, can better satisfy the demand of large -scale production. 2, the size and shape of every mould are accurate design and manufacture, under the same production process condition, the urethral catheter introduction head produced by multiple moulds can keep higher consistency and stability, and the quality of product is more reliable, and it is helpful to improve the overall quality and performance of product. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic diagram of urethral catheter introduction head of the utility model.

[0018] Figure 2 It is the cross section perspective schematic diagram of one embodiment of the utility model.

[0019] Figure 3 It is Figure 2 the enlarged schematic diagram of A in

[0020] Figure 4 It is the cross section schematic diagram of one embodiment of the utility model.

[0021] Figure 5 It is the schematic diagram of fixed mould plate.

[0022] Figure 6 It is the cross section perspective schematic diagram of the thimble part. DETAILED DESCRIPTION

[0023] The utility model will be further described in detail in connection with the drawings embodiment.

[0024] Embodiment 1

[0025] Combine with Figures 1 to 6A kind of mold for the multi-channel forming of urinary catheter guide head, including a fixed die seat plate 1 and fixed die plate 2, the fixed die plate 2 is movably provided with movable die plate 3, the movable die plate 3 is provided with injection nozzle 4, the movable die plate 3 is connected on movable die seat plate 5, the movable die plate 3 and the junction of fixed die plate 2 is provided with movable die kernel 6 and fixed die kernel 7, the movable die kernel 6 is fixedly connected on movable die plate 3, the fixed die kernel 7 is fixedly connected on fixed die plate 2, the fixed die kernel 7 is provided with lower cavity 8, the movable die kernel 6 is provided with upper cavity 9, the fixed die kernel 7 is divided into front fixed die kernel 10 and rear fixed die kernel 11, a hot runner plate 12 is also provided between the front fixed die kernel 10 and the rear fixed die kernel 11, a row of urinary catheter guide head cavities 13 is arranged on the lower cavity 8, the urinary catheter guide head cavity 13 is also provided with feed channel 14 close to the hot runner plate 12, the hot runner plate 12 is provided with total material channel 15 connected with injection nozzle 4, the total material channel 15 is divided into multiple branch channels 16, and the branch channel 16 is connected with the feed channel of lower cavity 8;A vertical guide rod 17 is provided between the fixed die seat plate 1 and the fixed die plate 2, a ejector plate 18 is movably provided on the vertical guide rod 17, a main ejector pin 19 and a vice ejector pin 20 are provided on the ejector plate 18, the main ejector pin 19 enters the lower part of total material channel 15, the vice ejector pin 20 enters the lower part of branch channel 16 and urinary catheter guide head cavity 13;The ejector plate 18 is also connected with driving device for driving the upward movement of the ejector plate 18.The driving device can be selected as hydraulic cylinder.

[0026] In order to facilitate the movement of the ejector plate 18 without deformation, a lower ejector plate 21 is also provided below the ejector plate 18, the lower ejector plate 21 is also slidably arranged on the vertical guide rod 17, and the lower ejector plate 21 is driven to rise by the driving device.

[0027] In order to improve the feeding speed, two total material channels 15 are provided on a hot runner plate 12, and the number of injection nozzles 4 is correspondingly matched.

[0028] A preferred embodiment is that sixteen urinary catheter guide head cavities 13 are provided on a front fixed die kernel 10, and sixteen branch channels 16 are also provided on one side.

[0029] A preferred embodiment is that the total material channel is first divided into two, then divided into four, and finally divided into sixteen branch channels 16.

[0030] In order to increase the production capacity, two pairs of fixed die plates 2 are provided on the fixed die plate 2, i.e. two pairs of front fixed die plates 2 and two pairs of rear fixed die plates 2.

[0031] In order to improve the service life of the mold, buffer pads are provided on the upper sides of the fixed die plate 2.

[0032] The utility model discloses when using, the mould first injects plastic liquid into the total material channel, and the total material channel passes through the hot runner plate 12's branch channel 16 and enters the feed channel 14 on lastly enters the urethral catheter introduction head cavity 13 on the molding, and the cooling after the movable mold plate 3 goes up, and the ejector pin goes up and ejects the workpiece from the cavity and completes injection molding.

[0033] The utility model discloses the beneficial effect lies in: 1, improved production efficiency, and multiple moulds can produce simultaneously, and multiple urethral catheter introduction heads can be shaped in one operation, compared with single mould production, greatly shorten the production cycle, improve the output in unit time, can better satisfy the demand of large -scale production. 2, the size and shape of every mould are accurate design and manufacture, under the same production process condition, the urethral catheter introduction head produced by multiple moulds can keep higher consistency and stability, and the quality of product is more reliable, helps to improve the overall quality and performance of product.

Claims

1. A mold for multi-channel molding of a urinary catheter insertion head, comprising a fixed mold base plate and a fixed template, a movable template movably mounted on the fixed template, an injection nozzle mounted on the movable template, the movable template being connected above the movable mold base plate, a movable mold core and a fixed mold core being provided at the junction of the movable template and the fixed template, the movable mold core being fixedly connected to the movable template, the fixed mold core being fixedly connected to the fixed template, the fixed mold core having a lower cavity, and the movable mold core having an upper cavity, characterized in that: The fixed mold stem is divided into front fixed mold stem and rear fixed mold stem, and a hot runner plate is further arranged between the front fixed mold stem and the rear fixed mold stem, a row of urethral catheter introduction head type cavities is arranged on the lower cavity, and a feeding channel is further arranged on the urethral catheter introduction head type cavity close to the hot runner plate, a total material channel engaging with the injection nozzle is arranged on the hot runner plate, the total material channel is divided into a plurality of branch material channels, and the branch material channels engage with the feeding channel of the lower cavity; a vertical guide rod is arranged between the fixed mold base plate and the fixed mold plate, a ejector plate is movably arranged on the vertical guide rod, a main ejector pin and a secondary ejector pin are arranged on the ejector plate, the main ejector pin enters below the total material channel, and the secondary ejector pin enters below the branch material channel and the urethral catheter introduction head type cavity; the ejector plate is further connected with a driving device driving the upward movement of the ejector plate.

2. The multi-channel formed mold for a urinary catheter introducer tip of claim 1, wherein: A lower ejector plate is further arranged below the ejector plate, the lower ejector plate is also slidably arranged on the vertical guide rod, and the lower ejector plate is driven to be lifted by the driving device.

3. The multi-channel formed mold for a urinary catheter introducer tip of claim 1, wherein: Two total material channels are arranged on the hot runner plate, and the number of the injection nozzles is correspondingly matched.

4. The multi-channel formed mold for a urinary catheter introducer tip of claim 1, wherein: Sixteen urethral catheter introduction head type cavities are arranged on the front fixed mold stem, and sixteen branch material channels are arranged on one side.

5. The multi-channel formed mold for a urinary catheter introducer tip of claim 1, wherein: The total material channel is first divided into two, then divided into four, and finally divided into sixteen branch material channels.

6. The multi-channel formed mold for a catheter introducer tip of claim 1, wherein: Two fixed mold plates are arranged on the fixed mold plate, and two front fixed mold plates and two rear fixed mold plates are arranged.

7. The multi-channel formed mold for a catheter introducer tip of claim 1, wherein: Buffer blocks are arranged on the two sides of the fixed mold plate.

Images