CN221417348U

CN221417348U - Forming die is used in processing of medical injector

Info

Publication number: CN221417348U
Application number: CN202323324357.9U
Authority: CN
Inventors: 周平拔; 梁维威; 林洪伟
Original assignee: Huizhou Huanchuang Plastic Mold Co ltd
Current assignee: Huizhou Huanchuang Plastic Mold Co ltd
Priority date: 2023-12-07
Filing date: 2023-12-07
Publication date: 2024-07-26
Anticipated expiration: 2033-12-07

Abstract

The utility model relates to the technical field of injection molds, in particular to a molding mold for processing a medical injector, which comprises a base, a lower mold, an upper mold and further comprises: connecting blocks, which are welded on the left and right sides of the upper die respectively. The utility model overcomes the defects of the prior art, the cooling water channel is arranged at the outer side of the cavity in the lower die, when the needle cylinder model is cooled, cooling water is poured into the water tank firstly, then the cooling water in the water tank enters the cooling water channel through the water inlet pipe by starting the water pump, heat is taken away by the cooling water so as to cool the needle cylinder model in the cavity, finally the cooling water enters the water pump through the water outlet pipe, and then the cooling water enters the water tank through the water pipe for recycling, so that the cooling mode shortens the time of molding the needle cylinder model, and the efficiency of the needle cylinder model in molding is improved.

Description

Forming die is used in processing of medical injector

Technical Field

The utility model relates to the technical field of injection molds, in particular to a molding mold for processing a medical injector.

Background

The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and after cooling and solidification, a formed product is obtained, and referring to a known syringe needle cylinder forming die (publication number: CN 211842930U), at least the following defects exist in the using process:

1. The existing partial medical injector molding die generally injects heated and melted plastic into the die when the needle cylinder is molded, however, the injection die needs a certain time to cool in the process of medical injector molding, and finally the needle cylinder is taken out after solidification, but the cooling process is longer, and the overall molding efficiency is reduced.

2. After the needle cylinder is molded by using the medical injector molding die, the needle cylinder needs to be demolded, the upper die and the lower die need to be separated and taken out when the needle cylinder is demolded, and a worker needs to manually separate the upper die from the lower die when the upper die and the lower die are separated, so that the efficiency of the needle cylinder model during demolding is reduced by the operation mode.

Disclosure of utility model

The utility model aims to provide a forming die for processing a medical injector, which aims to solve the problems of the prior forming die for processing the medical injector in the use process.

In order to realize the technical problems, the utility model provides the following technical scheme:

The utility model provides a medical injector processing is with forming die, includes base, bed die and last mould, still includes:

connecting blocks which are welded on the left side and the right side of the upper die respectively;

The motors are respectively arranged at four corners of the top of the base, the upper ends of the motors are connected with screw rods, the screw rods and the connecting blocks are arranged in a penetrating way, and the screw rods and the connecting blocks are in threaded connection;

The cooling mechanism is arranged on one side of the lower die and comprises a water pump, a water delivery pipe, a supporting plate, a water tank, a water inlet pipe and a water outlet pipe, and a cooling water channel is arranged in the lower die;

In this design, utilize cooling body to cool off the cylinder model fast, shortened original cooling time to improved the efficiency of cylinder model when the shaping, when the drawing of patterns, utilize the operation of motor to make the lead screw rotate, thereby make the connecting block separate last mould and bed die, labour saving and time saving has improved the efficiency of staff when the drawing of patterns.

Preferably, the water pump is arranged at the top of the base, the water pump is positioned at the right side of the lower die, and one end of the water pump is connected with a water outlet pipe communicated with the cooling water channel;

in this design, the water pump adopts a centrifugal pump, and the water in the cooling water channel is pumped out through the water outlet pipe by the operation of the centrifugal pump.

Preferably, the right side of the lower die is welded with a supporting plate, the top of the supporting plate is provided with a water tank, and one side of the water tank is connected with a water inlet pipe communicated with a cooling water channel;

In this design, the support plate is used to support the water tank, and when the cylinder model is cooled, cooling water is injected into the water tank, and then the cooling water can be injected into the cooling water channel through the water inlet pipe.

Preferably, the top of the water pump is connected with a water delivery pipe, and one end of the water delivery pipe extends into the water tank;

In the design, the pumped cooling water can be guided into the water tank through the water delivery pipe by the operation of the water pump, and then the cooling water is recycled, so that the cost is saved.

Preferably, four corners of the top of the lower die are respectively connected with positioning rods, the top of the lower die is provided with a plurality of cavities, the number of the cavities is greater than one, the inner sides of the cavities are provided with connecting channels, and the connecting channels are used for connecting the cavities;

In this design, during the compound die, can insert the locating lever in the locating hole, improved the stability of this shaping model when the compound die, the die cavity is used for shaping the cylinder model, and each die cavity is filled up through the intercommunication way to plastics that are heated during the injection molding.

Preferably, four corners of the bottom of the upper die are respectively provided with positioning holes matched with the positioning rods;

In this design, the locating holes are used to connect locating rods to facilitate the combination of the upper and lower molds.

Preferably, the top of the upper die is provided with an injection molding port, the interior of the upper die is provided with an injection molding channel communicated with the injection molding port, and the injection molding port, the injection molding channel and the communication channel are communicated;

In this design, the heated melted plastic is injected by the injection molding machine at high pressure through the injection port, and the plastic then passes through the injection channel into the cavity, thereby molding the syringe mold, and the plastic can fill each cavity through the connecting channel.

The embodiment of the utility model provides a molding die for processing a medical injector, which has the following beneficial effects:

1. Through being provided with water pump, cooling water course, outlet pipe, backup pad, raceway, water tank and inlet tube, wherein the die cavity outside in the bed die is provided with the cooling water course, when cooling the cylinder model, pour the cooling water into the water tank earlier, then make the cooling water in the water tank get into in the cooling water course through the inlet tube through starting the water pump, thereby the cooling water takes away the heat and cools off the cylinder model in the die cavity, finally the cooling water gets into in the water pump through the outlet pipe, then the water pump carries out the cyclic utilization with the cooling water through the reentrant water tank of raceway, this kind of cooling mode has shortened the time when the cylinder model is formed, thereby the efficiency of cylinder model when the shaping has been improved.

2. Through setting up motor, lead screw and connecting block, when the cylinder model is finished after carrying out the drawing of patterns, need separate last mould and bed die, accessible starter motor makes the lead screw rotate this moment, makes the connecting block reciprocate on the lead screw after the lead screw rotates to separate last mould and bed die, the operation is very convenient, labour saving and time saving, has improved the efficiency of cylinder model when the drawing of patterns.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram showing the split structure of the upper mold and the lower mold according to the present utility model;

FIG. 3 is a schematic view of the overall right side construction of the present utility model;

FIG. 4 is a schematic cross-sectional view of an upper mold according to the present utility model;

fig. 5 is a schematic cross-sectional view of the lower die of the present utility model.

In the figure: 1. a base; 2. a lower die; 3. an upper die; 4. a connecting block; 5. a motor; 6. a screw rod; 7. an injection molding port; 8. a positioning rod; 9. a cavity; 10. a connecting channel; 11. positioning holes; 12. a water pump; 13. a water pipe; 14. a support plate; 15. a water tank; 16. an injection molding channel; 17. a cooling water channel; 18. a water inlet pipe; 19. and a water outlet pipe.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to fig. 1-5, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only and are not intended to limit the present utility model.

Please refer to fig. 1-5: the utility model provides a medical injector processing is with forming die, specifically includes base 1, bed die 2 and last mould 3, still includes: the connecting block 4 is welded on the left side and the right side of the upper die 3 respectively, the motors 5 are respectively arranged at four corners of the top of the base 1, the motors 5 are stepping motors, the stepping motors have higher precision and lower cost, but the rotating speed is lower, the motors are mainly used for controlling the application with lower speed and high precision requirement, the upper end of each motor 5 is connected with a screw rod 6, the screw rods 6 and the connecting block 4 are arranged in a penetrating way, the screw rods 6 and the connecting block 4 are in threaded connection, when a worker demolds a syringe model, the device is externally connected with a controller, the motors 5 are operated under the control of the controller, and after the motors 5 are operated, the connecting block 4 moves up and down outside the screw rods 6, so that the upper die 3 and the lower die 2 are separated, and the efficiency of the worker in demolding the syringe model is improved;

As shown in fig. 3-5, the cooling mechanism is arranged at one side of the lower die 2, the cooling mechanism comprises a water pump 12, a water pipe 13, a supporting plate 14, a water tank 15, a water inlet pipe 18 and a water outlet pipe 19, a cooling water channel 17 is arranged in the lower die 2, wherein the cooling water channel 17 is arranged at the outer side of the cavity 9, cooling water can take away heat in the cavity 9 through the cooling water channel 17 so as to accelerate the cooling speed of the syringe model, the water pump 12 is arranged at the top of the base 1, the water pump 12 is positioned at the right side of the lower die 2, the water pump 12 adopts a centrifugal pump which is a common power machine, the medium is thrown away from the center point by utilizing the centrifugal force principle, the medium is conveyed to a designated position through a pump body and a pipeline, one end of the water pump 12 is connected with the water outlet pipe 19 which is communicated with the cooling water channel 17, the supporting plate 14 is welded at the right side of the lower die 2, the water tank 15 is installed at the backup pad 14 top, water tank 15 is used for depositing the cooling water, water tank 15 one side is connected with the inlet tube 18 that is linked together with cooling water course 17, water pump 12 top is connected with raceway 13, and raceway 13 one end extends to in the water tank 15, when cooling down the cylinder model in the cavity 9, the control of accessible external controller makes water pump 12 operation, wherein water tank 15, inlet tube 18, cooling water course 17, outlet pipe 19, water pump 12 and raceway 13 are linked together, produce the suction after water pump 12 operation, make the cooling water in the water tank 15 get into cooling water course 17 through inlet tube 18, the heat in the die cavity 9 is taken away after the cooling water gets into cooling water course 17, then get into water pump 12 through outlet pipe 19, then water pump 12 is with the cooling water that draws in through raceway 13 injection water tank 15 in the circulation use.

As shown in fig. 2-3, four corners at the top of the lower die 2 are respectively connected with positioning rods 8, four corners at the bottom of the upper die 3 are respectively provided with positioning holes 11 matched with the positioning rods 8, wherein the length of the positioning rods 8 is the same as the depth of the positioning holes 11, when the dies are closed, the upper die 3 and the lower die 2 are combined by inserting the positioning rods 8 into the positioning holes 11, the stability of the dies after the dies are closed is ensured, the quality of a product after the dies are closed is improved, the top of the lower die 2 is provided with a plurality of cavities 9, the number of the cavities 9 is greater than one, the inner sides of the cavities 9 are provided with connecting channels 10, the connecting channels 10 are communicated with the cavities 9, and when the injection molding is performed, heated and melted plastics are injected into the cavities 9 under high pressure by an injection molding machine, and then the heated and melted plastics fill the cavities 9 through the connecting channels 10, so that the molding of the syringe model is completed.

As shown in fig. 2-4, an injection port 7 is formed at the top of the upper mold 3, an injection channel 16 communicated with the injection port 7 is formed inside the upper mold 3, the injection port 7, the injection channel 16 and the communication channel 10 are communicated, the plastic melted by heating is injected by an injection machine through the injection port 7 under high pressure, and then the plastic enters the cavity 9 through the injection channel 16, so that the syringe model is molded.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a medical injector processing is with forming die, includes base (1), bed die (2) and last mould (3), its characterized in that still includes:

Connecting blocks (4) which are welded on the left side and the right side of the upper die (3) respectively;

the motors (5) are respectively arranged at four corners of the top of the base (1), the upper ends of the motors (5) are connected with screw rods (6), the screw rods (6) and the connecting blocks (4) are arranged in a penetrating mode, and the screw rods (6) are in threaded connection with the connecting blocks (4);

The cooling mechanism is arranged on one side of the lower die (2) and comprises a water pump (12), a water delivery pipe (13), a supporting plate (14), a water tank (15), a water inlet pipe (18) and a water outlet pipe (19), and a cooling water channel (17) is arranged in the lower die (2).

2. The molding die for processing the medical injector according to claim 1, wherein the water pump (12) is mounted at the top of the base (1), the water pump (12) is positioned at the right side of the lower die (2), and a water outlet pipe (19) communicated with the cooling water channel (17) is connected to one end of the water pump (12).

3. The medical injector processing forming die according to claim 1, wherein a supporting plate (14) is welded on the right side of the lower die (2), a water tank (15) is installed on the top of the supporting plate (14), and a water inlet pipe (18) communicated with a cooling water channel (17) is connected to one side of the water tank (15).

4. The medical injector processing forming die according to claim 1, wherein the water pump (12) is connected with a water pipe (13) at the top, and one end of the water pipe (13) extends into the water tank (15).

5. The medical injector processing forming die according to claim 1, wherein four corners of the top of the lower die (2) are respectively connected with positioning rods (8), a plurality of cavities (9) are formed in the top of the lower die (2), the number of the cavities (9) is greater than one, connecting channels (10) are formed in the inner sides of the cavities (9), and the connecting channels (10) are used for connecting the cavities (9).

6. The medical injector processing molding die according to claim 1, wherein positioning holes (11) which are engaged with the positioning rods (8) are respectively formed in four corners of the bottom of the upper die (3).

7. The molding die for processing the medical injector according to claim 1, wherein an injection molding opening (7) is formed in the top of the upper die (3), an injection molding channel (16) communicated with the injection molding opening (7) is formed in the upper die (3), and the injection molding opening (7), the injection molding channel (16) and the communication channel (10) are communicated.