CN223442717U - Medical cleaning ball shaping injection mold - Google Patents

Abstract

A medical cleaning ball molding injection mold includes a cavity template and a core template, a hot runner system is set on the cavity template, an upper cavity insert is set in the cavity template, a lower cavity insert is set in the core template, the upper cavity insert cooperates with the lower cavity insert, and a cleaning ball cavity surface is set in the upper cavity insert and the lower cavity insert, a core fixing plate is set under the core template, two mold feet are set under the core fixing plate, a core duplex plate is set under the two mold feet, and a spacer is provided between the two mold feet. An upper top plate and a lower top plate are provided, and a push rod is provided on the upper top plate and the lower top plate. A cleaning ball core is provided on the head of the push rod. The cleaning ball core passes through the core fixing plate and extends into the upper cavity insert and the lower cavity insert, and forms a cleaning ball mold cavity with the cleaning ball cavity surface. The hot runner system is connected to the cleaning ball mold cavity, an air path is provided in the push rod, a blowing hole is provided in the cleaning ball core, and an air inlet is provided in the lower top plate. The blowing hole, the air path and the air inlet are connected to each other, and the air inlet is connected to an external air source.

Description

Medical cleaning ball shaping injection mold

Technical Field

The utility model relates to a molding injection mold of a medical cleaning ball, and belongs to the field of injection molds.

Background

Plastic products, such as a medical cleaning ball, are produced by using an injection mold, and the cleaning ball is hollow and spherical and is connected with a pipe according to the appearance and structural analysis of the products, so that a joint for connecting the pipe is arranged on the hollow spherical body. The traditional technology is generally used for producing the product, but the blow molding is generally used for producing the product with rough surface and uneven wall thickness, and particularly, the junction of the joint and the hollow spherical body is difficult to mold, the yield is not high all the time, the raw material waste is large, and the production cost is high.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a medical cleaning ball forming injection mold which adopts injection molding of the injection mold, and the medical cleaning ball forming injection mold has the advantages of low cost and high efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides a medical cleaning ball shaping injection mold, including die cavity template and core template, set up hot runner system on the die cavity template, set up the die cavity insert in the die cavity template, set up the die cavity insert down in the core template, go up the die cavity insert and cooperate with the die cavity insert down, and set up the cleaning ball die cavity face in last die cavity insert and the die cavity insert down, set up the core fixed plate under the core template, set up two mould feet under the core fixed plate, set up the core compound plate under two mould feet, set up roof and roof down between the two mould feet, set up the ejector pin on roof and the roof down, the head of ejector pin sets up the cleaning ball core, the cleaning ball core passes the core fixed plate and stretches into in last die cavity insert and the die cavity insert down, and constitute the cleaning ball die cavity with between the cleaning ball die cavity face, set up the gas circuit in the ejector pin, set up the gas pocket in the ejector pin, set up the inlet port in the roof down, the gas pocket, gas circuit and air inlet port intercommunication each other, external air supply.

Further, the ejector rod and the cleaning ball core are internally provided with a waterway, the lower top plate is provided with a waterway plate, the waterway plate is internally provided with a water inlet, and the water inlet is communicated with the waterway and is externally connected with a cooling water source.

Further, the hot runner system comprises a hot runner bracket arranged on the cavity template, a cavity compound plate arranged on the hot runner bracket, a gate arranged on the cavity compound plate, a runner plate arranged in the hot runner bracket, a runner hole arranged in the runner plate, a needle valve type hot nozzle connected under the runner plate, and a cleaning ball cavity communicated with the gate, the runner hole and the needle valve type hot nozzle.

Further, the number of the upper cavity inserts and the lower cavity inserts is 1-32, and the number of the ejector rods and the cleaning ball cores corresponds to the number of the upper cavity inserts and the lower cavity inserts.

The beneficial effects of the utility model are as follows:

Compared with the prior art, the cleaning ball is injection molded by adopting an injection mold, the surface is smooth, and the wall thickness is uniform;

The molding is easy, particularly the junction of the body of the cleaning ball and the joint is convenient to injection-mold and fill, the molding precision is high, the yield of products is high, the waste of raw materials is less, and the cost is saved;

3. the air blowing expansion demoulding mode is adopted, so that the demoulding is convenient;

4. one mould multicavity, production efficiency is high.

Drawings

FIG. 1 is a schematic view of a medical cleaning ball molding injection mold structure according to the present utility model;

fig. 2 is a schematic perspective view of a medical cleaning ball molding injection mold of the present utility model.

Detailed Description

The utility model will now be described in detail with reference to specific examples which will assist those skilled in the art in further understanding the utility model, but which are not intended to be limiting in any way.

As shown in fig. 1 and 2, the utility model relates to a medical cleaning ball forming injection mold, which comprises a cavity template 1 and a core template 2, wherein a hot runner system is arranged on the cavity template 1, an upper cavity insert 3 is arranged in the cavity template 1, a lower cavity insert 5 is arranged in the core template 2, the upper cavity insert 3 is matched with the lower cavity insert 5, cleaning ball cavity surfaces are arranged in the upper cavity insert 3 and the lower cavity insert 5, a core fixing plate 6 is arranged below the core template 2, two mold feet 7 are arranged below the core fixing plate, a core compound plate 8 is arranged below the two mold feet, an upper top plate 9 and a lower top plate 10 are arranged between the two mold feet, ejector rods 11 are arranged on the upper top plate 9 and the lower top plate 10, cleaning ball cores 12 are arranged at the heads of the ejector rods, the cleaning ball cores 12 penetrate through the core fixing plate 8 and extend into the upper cavity insert 3 and the lower cavity inserts 5, a cleaning ball cavity 13 is formed between the cleaning ball cavity surfaces, the hot runner system is communicated with the cleaning ball cavity 13, air inlets 15 are arranged in the ejector rods 11, air inlets 16 are arranged in the cleaning ball cores 12, air inlets 17 are arranged in the lower top plate 10, air inlets 17, 17 and 17 are communicated with air inlets.

During injection molding, molten plastic raw materials are injected into a cleaning ball die cavity 13 from a hot runner system, the cleaning ball die cavity 13 is filled, pressurized and shaped to obtain a medical cleaning ball 27, then the medical cleaning ball 27 is demolded, the die cavity is separated from an upper die cavity insert 3 and a lower die cavity insert 5 by the power of an injection molding machine, the cleaning ball 27 is remained on the cleaning ball die core 12 and moves downwards along with the die cavity die core 2 and the lower die cavity insert 5, in the die opening process, a lower top plate 10 contacts with an ejection push rod of an injection molding machine, under the reaction force of the ejection push rod, the ejector rods 11 on the lower top plate 10 and the upper top plate 9 are driven to move upwards, the cleaning ball die core 12 and the cleaning ball 27 on the ejector rods 11 are ejected from the lower die cavity insert 5, then the air source works, air is blown against the inner wall of the cleaning ball 27, the cleaning ball 27 is expanded, and blown off from the cleaning ball die core 12, and demolding is completed. In actual production, the plastic raw material of the scheme adopts modified PVC material, the wall thickness of the formed cleaning ball is thinner, the formed cleaning ball has good ductility, the cleaning ball is in an incomplete cooling solidification state when in blowing demolding, the inner wall of the cleaning ball 27 is clung to the cleaning ball core 12, when the cleaning ball is in air intake, the whole ball of the cleaning ball 27 is blown and expanded at one time, the cleaning ball core 12 is blown down, when in blowing, a receiving hopper can be carried by a manipulator, the blown-down cleaning ball 27 is received, and the cleaning ball 27 automatically returns to a state (size) before expansion under the action of the characteristic (ductility) of the modified PVC material, and one processing procedure is completed. The scheme adopts injection molding, blowing expansion and demolding, and has high production efficiency and low cost.

Further, the ejector rod 11 and the cleaning ball core 12 are internally provided with a waterway 18, the lower top plate 10 is provided with a waterway plate 19, the waterway plate is internally provided with a water inlet 20, and the water inlet 20 is communicated with the waterway 19 and externally connected with a cooling water source. After the product (cleaning ball) is injection molded, cooling and shaping are needed, but not completely shaping is needed, cooling water is injected into the waterway 18, and the cooling water penetrates through the cleaning ball core 12, so that the shaping time of the product can be shortened and controlled, the shaping time can be shortened, the production efficiency can be improved, the cooling state of the product can be controlled, the blowing expansion of the product during demolding is convenient, and the product is separated from the cleaning ball core 12.

Further, the hot runner system comprises a hot runner bracket 21 arranged on the cavity template 1, a cavity compound plate 22 arranged on the hot runner bracket, a gate 23 arranged on the cavity compound plate 22, a runner plate 24 arranged in the hot runner bracket 21, a runner hole 25 arranged in the runner plate 24, a needle valve type hot nozzle 26 connected under the runner plate, wherein the gate 23, the runner hole 25 and the needle valve type hot nozzle 26 are communicated, and the needle valve type hot nozzle 26 is communicated with the cleaning ball cavity 13. During injection molding, molten plastic raw materials enter from the gate 23, are injected into the cleaning ball mold cavity 13 through the runner hole 25 and the needle valve type hot nozzle 26, and the needle valve type hot nozzle 26 has the functions of automatic temperature control and material control, so that the weight and the temperature of the raw materials injected into the cleaning ball mold cavity 13 can be controlled, and the molding yield of products is improved.

Furthermore, the number of the upper cavity insert 3 and the lower cavity insert 5 is 1-32, the number of the ejector rods 11 and the cleaning ball cores 12 corresponds to the number of the upper cavity insert 3 and the lower cavity insert 5, namely, 1-32 products can be produced by one-time injection molding, one mold has multiple cavities, and the production efficiency is high.

The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.

Claims (4)

1. The utility model provides a medical cleaning ball shaping injection mold, a serial communication port includes die cavity template (1) and core template (2), set up hot runner system on die cavity template (1), set up on die cavity template (1) die cavity insert (3), set up down die cavity insert (5) in core template (2), go up die cavity insert (3) and down die cavity insert (5) and cooperate, and set up the cleaning ball die cavity face in last die cavity insert (3) and lower die cavity insert (5), set up core fixed plate (6) under core template (2), set up two mould feet (7) under the core fixed plate, set up core counter plate (8) under the two mould feet, set up roof (9) and roof (10) down between the two mould feet, set up ejector pin (11) on roof (9) and roof (10) down, the head of ejector pin sets up cleaning ball core (12), cleaning ball core (12) pass core fixed plate (8) and stretch into in last die cavity insert (3) and lower die cavity insert (5), and constitute cleaning ball die cavity face between cleaning ball die cavity (13), set up in air inlet hole (16) air vent (16) set up in roof (17), set up in blow hole (16) air vent system (16) in the roof (17) air vent The air channel (15) is communicated with the air inlet hole (17), and the air inlet hole (17) is externally connected with an air source.

2. The medical cleaning ball molding injection mold according to claim 1, wherein the ejector rod (11) and the cleaning ball core (12) are internally provided with a waterway (18), the lower top plate (10) is provided with a waterway plate (19) below, the waterway plate is internally provided with a water inlet (20), and the water inlet (20) is communicated with the waterway (19) and externally connected with a cooling water source.

3. A medical cleaning ball molding injection mold according to claim 1, characterized in that the hot runner system comprises a hot runner bracket (21) arranged on a cavity template (1), a cavity compound plate (22) arranged on the hot runner bracket, a gate (23) arranged on the cavity compound plate (22), a runner plate (24) arranged in the hot runner bracket (21), a runner hole (25) arranged in the runner plate (24), a needle valve type hot nozzle (26) connected under the runner plate, wherein the gate (23), the runner hole (25) and the needle valve type hot nozzle (26) are communicated, and the needle valve type hot nozzle (26) is communicated with a cleaning ball mold cavity (13).

4. A medical cleaning ball molding injection mold according to claim 1, characterized in that the number of the upper cavity insert (3) and the lower cavity insert (5) is 1-32, and the number of the ejector rods (11) and the cleaning ball cores (12) corresponds to the number of the upper cavity insert (3) and the lower cavity insert (5).