CN211416092U - Injection mold - Google Patents

Abstract

The utility model relates to the technical field of injection molding machines, in particular to an injection mold, which comprises a left mold plate and a right mold plate arranged on the right side of the left mold plate. A cooling circuit, a second cooling circuit, and a third cooling circuit, the first cooling circuit is located on one side of the right template, the second cooling circuit is located at the bottom of the first cooling circuit, and the third cooling circuit is located at the bottom of the first cooling circuit. On the top of the first cooling circuit, the inner side of the first cooling circuit is provided with a flow cavity, and the outside of the rapid cooling device is provided with a heat conduction covering the outside of the first cooling circuit, the second cooling circuit and the third cooling circuit The outside of the heat-conducting pipe is fixedly connected with a heat-conducting sheet, the heat-conducting sheet is fixed inside the right template, the side of the right template away from the left template is provided with an injection port, and the flow cavity is provided at the injection port side.

Description

an injection mold

technical field

The utility model relates to the technical field of injection molding machines, in particular to an injection mold.

Background technique

Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for making thermoplastic or thermosetting plastics into various shapes of plastic products using plastic molding molds. It can heat plastic and apply high pressure to molten plastic to make it. Injection to fill the mold cavity.

At present, the Chinese Patent Publication No. CN 207273742 U discloses an injection mold, which includes an injection mold body, a hanging plate matched with the injection mold body, and the injection mold body includes a bottom plate and is fixed on the bottom plate The mold foot, the lower mold plate supported by the mold foot and spaced from the bottom plate, the upper mold plate located above the lower mold plate and cooperated with the lower mold plate to form a molding cavity, located between the bottom plate and the lower mold plate. The thimble plate between the two, the hanging formwork is provided with a first fixing part and a second fixing part respectively used to be fixed with the upper formwork and the lower formwork. It is characterized in that: the hanging formwork is also provided with a The blocking part on the side of the second fixing part away from the first fixing part, when the hanging platen is fixed on the injection mold body, the blocking part protrudes into the space between the bottom plate and the lower platen. The movement of the ejector plate toward the lower template and/or the bottom plate is limited for a period of time.

Although this kind of injection mold can fix the ejector plate when the injection mold body is not working to avoid the movement of the ejector plate and cause damage to the injection mold, the structure is simple and the installation is convenient, but: this injection mold does not take into account the improvement of cooling performance in the mold, and when it melts When the fluid plastic material is injected into the mold through the nozzle, its rapid cooling can greatly improve the efficiency of mold forming.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an injection mold, which has the advantage of facilitating rapid cooling of the injected fluid material.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions:

An injection mold, comprising a left die plate and a right die plate arranged on the right side of the left die plate, the inside of the right die plate is provided with a rapid cooling device, the rapid cooling device comprises a first cooling circuit, a second cooling circuit, a third cooling circuit The first cooling circuit is located on one side of the right template, the second cooling circuit is located at the bottom of the first cooling circuit, the third cooling circuit is located at the top of the first cooling circuit, and the first cooling circuit is located at the top of the first cooling circuit. The inner side of the cooling circuit is provided with a flow cavity, and the outer side of the rapid cooling device is provided with a heat conduction pipe covering the outside of the first cooling circuit, the second cooling circuit and the third cooling circuit, and the outside of the heat conduction pipe is fixedly connected with a heat conduction pipe. The heat-conducting sheet is fixed inside the right template, the side of the right template away from the left template is provided with an injection port, and the flow cavity is provided on one side of the injection port.

By adopting the above technical solution, the rapid cooling device is used to rapidly cool the material entering the right template, the first cooling circuit directly acts on the outside of the injection port, and a flow cavity is provided, which can rapidly cool the cooling liquid in a large area. The effect of the cooling system is maximized, and the efficiency of rapid cooling at the injection port is greatly improved. The second cooling circuit and the third cooling circuit are symmetrically distributed on the top and bottom of the right template, which are used as secondary cooling when the material enters between the left and right templates. cool down.

Further settings: the first cooling circuit includes a liquid inlet on one side of the right template, a liquid inlet pipe connected to the liquid inlet, a liquid outlet positioned on the top of the liquid inlet, and a liquid outlet connected to the liquid outlet The liquid inlet pipe and the liquid outlet pipe are both arranged inside the right template, the end of the liquid inlet pipe away from the liquid inlet is connected to the bottom of the flow cavity, and the end of the liquid outlet pipe away from the liquid outlet is connected to the bottom of the flow cavity. top of the flow chamber.

Further setting: the second cooling circuit includes a first circulation port located at the bottom of the right template, a circulation pipe connected to the circulation port and a second circulation port located at the bottom of the liquid inlet, the circulation pipe is bent and folded and distributed on the right side. Inside the template, the structure of the third cooling circuit is the same as that of the second cooling circuit.

Further setting: the top of the left template is provided with an injection nozzle, the bottom of the injection nozzle is connected with a cooling flow channel arranged inside the left mold, and the side of the left template close to the right template is provided with an installation groove, and the installation A replacement plate is arranged inside the groove, a positioning point is arranged between the replacement plate and the left template, and the cooling flow channel is arranged on the side of the left template close to the replacement plate.

By adopting the above technical solution, the installation groove and the replacement plate can be installed together, so that the shape of the mold can be changed quickly, and the mold plate produced can be quickly replaced.

Further setting: the left formwork is provided with a top post that penetrates the left formwork, the side of the top post away from the right formwork is fixedly connected with a compression spring, and the end of the compression spring away from the left formwork is fixedly connected with a moving plate, A support column is fixedly connected to the moving plate.

Further arrangement: a guide post is arranged between the left formwork and the right formwork, a fixing plate is fixedly connected to the side of the guide post away from the left formwork, and a telescopic cylinder is fixedly connected to the end of the fixing plate away from the left formwork, and the A stripping column is fixedly connected to the telescopic cylinder.

To sum up, the utility model has the following beneficial effects: through the setting of the rapid cooling device, the cooling flow channels are arranged inside the right template and the left template, which greatly improves the cooling speed after the material enters the mold and improves the cooling efficiency. , The mold itself has a simple structure, which can realize the rapid replacement of some parts, which is convenient and fast.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present utility model and constitute a part of this application, but do not constitute an improper limitation to the present utility model. In the accompanying drawings:

Fig. 1 is the overall structure schematic diagram of embodiment 1;

Fig. 2 is the schematic diagram of the top column in embodiment 1;

Fig. 3 is the internal structure schematic diagram of right template in embodiment 1;

4 is a schematic diagram of the internal structure of the left template in Example 1.

In the figure, 1, left template; 2, right template; 3, rapid cooling device; 31, first cooling circuit; 311, liquid inlet; 312, liquid inlet pipe; 313, liquid outlet; 314, liquid outlet pipe; 32, the second cooling circuit; 321, the first circulation port; 322, the circulation pipe; 323, the second circulation port; 33, the third cooling circuit; 4, the flow chamber; 5, the heat conduction pipe; 6, the heat conduction sheet; 7, Injection port; 8. Injection nozzle; 9. Cooling flow channel; 10. Installation groove; 11. Replacement plate; 12. Positioning slightly; 13. Top column; 14. Compression spring; 15. Moving plate; 16. Support column; 17. Guide column; 18. Fixed plate; 19. Telescopic cylinder; 20. Stripping column.

Detailed ways

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to FIGS. 1 to 4 . The structural contents mentioned in the following embodiments are all referenced to the accompanying drawings.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1: An injection mold, as shown in Figure 1, the left end is a telescopic cylinder 19, a fixed plate 18 is fixedly connected to the output shaft of the telescopic cylinder 19, and a stripping column 20 is fixedly connected to the center of the telescopic cylinder 19. One end of the plate 18 away from the telescopic cylinder 19 is fixedly connected with four guide columns 17, the guide columns 17 are distributed on the four corners of the fixed plate 18, and a moving plate 15 is arranged between the guide columns 17 on the side close to the fixed plate 18. The outer wall of the left end of the plate 15 is fixedly connected with a support column 16, and the position of the support column 16 corresponds to the stripping column 20. The outer wall of the right end of the moving plate 15 is fixedly connected with four groups of compression springs 14, and one end of the compression springs 14 is fixed on the movable plate 15, and the other end is fixed on the side wall of the left end of the left template 1.

As shown in Figures 1 and 2, the interior of the left formwork 1 is provided with four top posts 13 penetrating the left formwork 1, and the four top posts 13 are respectively fixed on the side of the compression spring 14 close to the left formwork 1. When the spring 14 is squeezed, the top post 13 will protrude from the right side of the left template 1 .

As shown in FIG. 1 and FIG. 4 , the side wall on the right side of the left template 1 is provided with an installation groove 10 , and a replacement plate 11 is arranged inside the installation groove 10 . The fixing pin is fixed on the left template 1 through the nuts at both ends of the fixing pin.

As shown in FIG. 1 and FIG. 4 , injection nozzles 8 are fixedly connected to both sides of the top of the left template 1 , and the bottom of the injection nozzle 8 is the cooling channel 9 inside the left template 1 , and the cooling channel 9 fits the replacement plate 11 . side.

As shown in Figures 1 and 3, the right formwork 2 is provided at the right end of the left formwork 1, and its position corresponds to the left formwork 1. A guide post 17 is provided between the right formwork 2 and the left formwork 1, and the left end of the guide post 17 is fixed. On the fixing plate 18 , the right end can protrude from the right side of the right template 2 , and an injection port 7 is provided at the center of the right template 2 .

As shown in FIG. 1 and FIG. 3 , a rapid cooling device 3 is provided inside the right template 2. The rapid cooling device 3 includes a first cooling circuit 31, a second cooling circuit 32 and a third cooling circuit 33. The rapid cooling device 3 is provided with The two groups are symmetrically distributed on both sides of the inside of the right template 2, wherein the first cooling circuit 31 is located at one end of the middle of the right template 2, the second cooling circuit 32 is located at the bottom of the first cooling circuit 31, and the third cooling circuit 33 is located at the The top of the first cooling circuit 31 , the second cooling circuit 32 and the third cooling circuit 33 have the same structure, and the two are also symmetrical.

As shown in FIG. 1 and FIG. 3 , the first cooling circuit 31 includes a liquid inlet 311, a liquid inlet pipe 312, a liquid outlet 313 and a liquid outlet pipe 314. The liquid inlet 311 is located on one side of the right template 2, and the liquid outlet 313 is located at the top of the liquid inlet 311, the liquid inlet 311 is connected with the liquid inlet pipe 312, the liquid outlet 313 is connected with the liquid outlet pipe 314, and the liquid inlet pipe 312 is fixedly connected with the inside of the liquid outlet pipe 314. The left end of the heat-conducting pipe 5 is provided with a flow cavity 4 , and a heat-conducting sheet 6 is fixedly connected in the flow cavity 4 , and the heat-conducting sheet 6 covers the outside of the injection port 7 .

As shown in FIG. 1 and FIG. 3 , the second cooling circuit 32 includes a first circulation port 321 , a circulation pipe 322 and a second circulation port 323 , the first circulation port 321 is located at the bottom of the right template 2 , and the second circulation port 323 is located at the inlet The bottom of the liquid port 311 is provided with a circulation pipe 322 between the first circulation port 321 and the second circulation port 323 .

In the embodiment of the present invention, the telescopic cylinder 19 drives the fixed plate 18 to extend, the left template 1 and the right template 2 are positioned and matched, and the material enters the mold space formed by the right template 2 and the left template 1 from the injection port 7, and the first The first cooling circuit 31, the second cooling circuit 32, the third cooling circuit 33 and the cooling flow channel 9 are continuously supplied with cooling liquid, and the heat-conducting sheet 6 transfers the heat of the cooling liquid to the periphery of the injection port 7, and the material is continuously cooled. When between the molds, the second cooling circuit 32, the third cooling circuit 33 and the cooling liquid in the cooling channel 9 are continuously cooled at the same time to ensure the rapid molding of the mold. After molding, the telescopic cylinder 19 drives the fixed plate 18 to retract, and the stripping column 20 push the support column 16 forward, and the top column 13 pushes out the material to complete a cycle.

The above is a further detailed description of the present utility model in conjunction with the specific embodiments, and it cannot be considered that the specific implementation of the present utility model is limited to this; Under the premise of the idea of the scheme, the expansion, the replacement of the operation method and the data should all fall within the protection scope of the present invention.

Claims (6)

1. The utility model provides an injection mold, includes left template (1), locates right template (2) on left template (1) right side, its characterized in that: the rapid cooling device is characterized in that a rapid cooling device (3) is arranged inside the right template (2), the rapid cooling device (3) comprises a first cooling loop (31), a second cooling loop (32) and a third cooling loop (33), the first cooling loop (31) is arranged on one side of the right template (2), the second cooling loop (32) is arranged at the bottom of the first cooling loop (31), the third cooling loop (33) is arranged at the top of the first cooling loop (31), a flowing cavity (4) is arranged on the inner side of the first cooling loop (31), a heat conduction pipe (5) coated outside the first cooling loop (31), the second cooling loop (32) and the third cooling loop (33) is arranged outside the rapid cooling device (3), a heat conduction sheet (6) is fixedly connected inside the flowing cavity (4), and the heat conduction sheet (6) is fixed inside the right template (2), and an injection port (7) is formed in one side, far away from the left template (1), of the right template (2), and the flowing cavity (4) is formed in one side of the injection port (7).

2. An injection mold according to claim 1, wherein: first cooling circuit (31) including locate inlet (311) of right template (2) one side, feed through feed liquor pipe (312) on inlet (311), locate liquid outlet (313) at inlet (311) top, feed through drain pipe (314) on liquid outlet (313), the inside of right template (2) is all located in feed liquor pipe (312), drain pipe (314), the one end intercommunication that inlet (311) were kept away from in feed liquor pipe (312) is in the bottom of flowing chamber (4), the one end intercommunication that liquid outlet (313) were kept away from in drain pipe (314) is at the top of flowing chamber (4).

3. An injection mould according to claim 2, characterized in that: the second cooling loop (32) comprises a first circulation port (321) arranged at the bottom of the right template (2), a circulation pipe (322) communicated with the circulation port and a second circulation port (323) arranged at the bottom of the liquid inlet (311), the circulation pipe (322) is bent and folded and distributed in the right template (2), and the structure of the third cooling loop (33) is the same as that of the second cooling loop (32).

4. An injection mould according to claim 3, characterized in that: the top of left side template (1) is equipped with injection nozzle (8), the bottom intercommunication of injection nozzle (8) has locates the inside cooling runner (9) of left side mould, one side that left side template (1) is close to right side template (2) is equipped with mounting groove (10), the inside of mounting groove (10) is equipped with changes board (11), it is equipped with location slightly (12) to change between board (11) and left side template (1), one side that is close to changes board (11) in left side template (1) is located in cooling runner (9).

5. An injection mould according to claim 4, characterized in that: be equipped with in left side template (1) and run through fore-set (13) of left side template (1), one side fixedly connected with pressure spring (14) of right side template (2) are kept away from in fore-set (13), one end fixedly connected with movable plate (15) of left side template (1) are kept away from in pressure spring (14), fixedly connected with support column (16) on movable plate (15).

6. An injection mold according to claim 5, wherein: be equipped with guide post (17) between left side template (1) and right side template (2), one side fixedly connected with fixed plate (18) of left side template (1) are kept away from in guide post (17), the one end fixedly connected with telescoping cylinder (19) of left side template (1) are kept away from in fixed plate (18), fixedly connected with takes off material post (20) on telescoping cylinder (19).

Images