High-temperature-resistant injection mold

Abstract

The invention relates to the technical field of injection molds, in particular to a high-temperature-resistant injection mold which comprises a movable mold and a static mold forming mold opening and closing operation with the movable mold, guide columns are arranged at the four corners of the forming face of the static mold, and liquid bags are further arranged in a left positioning cavity and a right positioning cavity correspondingly. The front side and the rear side of each liquid bag are each provided with a first hose, the sprayers on the four sets of pipelines are automatically opened, a product piece is rapidly cooled in the mode that cooling liquid is sprayed diagonally, and the four sprayers will automatically stop spraying liquid till the cooling liquid compressed in the first hoses in advance is completely discharged. And the spray head is elliptical, and when the cooling liquid is sprayed outwards, the cooling liquid acts on the injection molding product part in a large area, so that the cooling efficiency of the injection molding product part is improved. The four nozzles stop the liquid spraying action, automation can be achieved without manual operation or complex mechanical structures, and the control mode is simple in structure.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to a high temperature resistant injection mold. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. The injection mold consists of a static mold, a dynamic mold, and a material return mold. When in use, the static mold and the dynamic mold are installed on two positions of the injection molding machine respectively. After the mold is tested and adjusted, the workpiece is molded and produced. In actual use, an injection molding machine is often set up around the injection mold. The injection molding machine is used to inject the fluid (thermoplastic or thermosetting plastic) into the cavity and core of the static and dynamic molds. The fluid is molded into the required product in the mold according to the shape of the cavity and the core.

[0003] When the existing injection mold is opened to inject high-temperature fluid, the surface of the plastic product still has a high temperature. When the material is ejected by an ejector rod or an ejector mold, the product will be deformed. Therefore, when the mold is opened to eject the material, a coolant is required to cool the product. The existing coolant control method is a water pump or an air pump and complex connected pipes, etc., which leads to high mold cost, complex structure, and difficulty in assembly. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a high temperature resistant injection mold, including a movable mold and a static mold that forms an opening and closing mold operation with the movable mold, guide pillars are arranged on the four corners of the molding surface of the static mold, guide holes are arranged on the four corners of the molding surface of the movable mold, and the guide holes are slidably fitted on the guide pillars. Positioning cavities are arranged on the left and right ends of the static mold, and two positioning blocks are fixed on the left and right ends of the movable mold. Liquid capsules are respectively arranged in the left and right positioning cavities, and a first hose is respectively installed on the front and back sides of the two liquid capsules, and each of the first hoses is respectively connected to a metal tube, and each of the metal tubes enters into one of the guide pillars and is respectively connected to a second hose, and each of the guide pillars is respectively provided with a groove, and the groove faces The core and the cavity, each of the second hoses is respectively installed with a nozzle with the nozzle direction facing the core and the cavity, and a pressure block is arranged in each of the four guide holes of the movable mold. The pressure block follows the guide hole and slides on the guide column and slides in the groove. When the movable mold and the static mold are closed, the second hose is compressed in the groove; when the movable mold and the static mold are closed, not only the two positioning blocks are inserted into the two positioning cavities, but also the two positioning blocks squeeze the two liquid bags respectively, so that the two liquid bags are compressed and deflated, and the coolant in the two liquid bags is respectively injected into the two first hoses in front and behind, and when the two second hoses are compressed and locked, the first hose is forced to expand and store pressure.

[0005] As a further preferred embodiment, two front and rear storage grooves are respectively opened at the left and right ends of the static mold, and the front and rear storage grooves are symmetrically located on the front and rear sides of the liquid bag, and the first hose connected to the front and rear ends of the liquid bag enters the front and rear storage grooves respectively.

[0006] As further preferred, the liquid bag is in a rubber corrugated shape, the first hose is a rubber bellows, and a one-way valve is installed on the first hose.

[0007] As a further preferred embodiment, the nozzle direction of the nozzle passes through the groove to face the core and the cavity, the opening direction of the groove on the left front guide column is opposite to the opening direction of the groove on the right rear guide column, and the opening direction of the groove on the left rear guide column is opposite to the opening direction of the groove on the right front guide column.

[0008] As a further preferred embodiment, the inner end of the pressing block is close to the second hose, and the inner end of the pressing block is close to the inner surface of the groove where it is located. The inner end of the pressing block is provided with a rounded corner to the bottom, and the second hose is provided with a bending portion that bends upward and then bends toward the opening direction of the groove. After the pressing block is lowered, the rounded corner is used to press on the bending portion to flatten the second hose, and the nozzle is connected to the bending portion with the nozzle facing the opening of the groove.

[0009] As a further preferred embodiment, connecting frames are installed at the left and right ends of the static mold, a first coolant tank is installed at the left end of the static mold through the connecting frame, and a second coolant tank is installed at the right end of the static mold through the connecting frame, a pipe is connected between the first coolant tank and the liquid bag on the left, and a pipe is connected between the second coolant tank and the liquid bag on the right, and the installation height of the first coolant tank and the second coolant tank is higher than the liquid bag, so that a height difference is formed between the first coolant tank and the second coolant tank and the liquid bag on the same side.

[0010] As a further preference, the shape of the nozzle is elliptical, and the nozzle on the nozzle is opened on the elliptical surface in the form of mesh holes.

[0011] As a further preferred embodiment, pouring holes are opened on the front and rear sides of the static mold, the inner ends of the pouring holes enter the mold cavity, the number of the pouring holes is greater than the number of the mold cavities, at least one group of pouring tubes is installed on the pouring holes on the same side, and the pouring tubes on both sides are connected to the same pouring fluid source.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Liquid capsules are set on the left and right ends of the static mold, and positioning blocks are set on the left and right ends of the dynamic mold. The original guide column on the static mold is set to a channel type, and a pressure block is set in the four guide holes of the dynamic mold. At the same time, four sets of pipelines are set in the front and rear ends of the liquid capsule and the groove of the guide column. When the dynamic mold is clamped relative to the static mold, not only the fluid is injected and molded, but also the four liquid capsules can be controlled by the clamping principle to automatically supply coolant to the four sets of pipelines, and the coolant is temporarily stored in the pipelines in a high-pressure self-controlled manner. With the opening of the dynamic and static molds, not only the molded injection molded product is exposed, but also the nozzles on the four sets of pipelines are automatically opened, and the product is rapidly cooled by diagonally spraying coolant until the coolant compressed in the first hose in advance is completely drained, and the four nozzles will automatically stop spraying. The nozzle is elliptical. When the coolant is sprayed outward, the coolant acts on the injection molded product over a large area, which improves the cooling efficiency of the injection molded product. The implementation of the liquid spraying stop action of the four nozzles does not require manual operation or a complex mechanical structure, and can be realized automatically. The control method has a simple structure.

[0014] 2. Two front and rear storage grooves are respectively provided at the left and right ends of the static mold. The front and rear storage grooves are symmetrically located on the front and rear sides of the liquid sac. The first hoses connected to the front and rear ends of the liquid sac enter the front and rear storage grooves respectively, which not only concentrates the liquid sac on the mold and reduces the occupied space, but also makes the first hose as close to the mold cavity as possible, so that when the mold is injected with high-temperature fluid, it shows its high temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a high temperature resistant injection mold during mold closing provided by an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of a main plane view of a high temperature resistant injection mold provided by an embodiment of the present invention;

[0017] Figure 3 A high temperature resistant injection mold provided by the embodiment of the present invention is composed of Figure 1 A schematic diagram from another perspective;

[0018] Figure 4 A schematic diagram of a high temperature resistant injection mold during mold opening provided by an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of only a static mold in a high temperature resistant injection mold provided by an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of only a movable mold in a high temperature resistant injection mold provided by an embodiment of the present invention;

[0021] Figure 7A schematic top plan view of a high temperature resistant injection mold provided by an embodiment of the present invention;

[0022] Figure 8 A high temperature resistant injection mold provided by the embodiment of the present invention is composed of Figure 7 Schematic diagram of the lead-out section A when cut open;

[0023] Fig. 9 A high temperature resistant injection mold provided by the embodiment of the present invention is composed of Figure 7 Schematic diagram of the lead-out C section when cut open;

[0024] Fig.10 A high temperature resistant injection mold provided by the embodiment of the present invention is composed of Fig. 9 The enlarged schematic diagram of the B part is shown;

[0025] Fig.11 The present invention provides a high temperature resistant injection mold provided by the embodiment of the present invention, wherein the movable mold is removed from the mold and only the static mold is viewed from above.

[0026] In the figure: 1, movable mold; 2, static mold; 3, guide column; 4, guide hole; 5, positioning cavity; 6, positioning block; 7, liquid bag; 8, first hose; 9, metal pipe; 10, second hose; 11, groove; 12, nozzle; 13, pressure block; 14, storage groove; 15, fillet; 16, bending part; 17, connecting frame; 18, first coolant tank; 181, second coolant tank; 19, pipeline; 20, pouring hole; 21, pouring pipe. DETAILED DESCRIPTION

[0027] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0028] In one embodiment, if Figure 1-Figure 11 As shown:

[0029] The present embodiment provides a high temperature resistant injection mold, comprising a movable mold 1 and a static mold 2 which forms an opening and closing mold operation with the movable mold 1, guide pillars 3 are arranged on the four corners of the molding surface of the static mold 2, guide holes 4 are arranged on the four corners of the molding surface of the movable mold 1, the guide holes 4 are slidably matched on the guide pillars 3, positioning cavities 5 are arranged on the left and right ends of the static mold 2, two positioning blocks 6 are fixed on the left and right ends of the movable mold 1, and liquid capsules 7 are respectively arranged in the left and right positioning cavities 5, and a first hose 8 is respectively installed on the front and rear sides of the two liquid capsules 7, and each of the first hoses 8 is respectively connected to a metal tube 9, and each metal tube 9 enters a guide pillar 3 and is respectively connected to a second hose 10, and each guide pillar 3 is respectively provided with a groove 11, and the groove 1 1 faces the core and the cavity, and each second hose 10 is respectively installed with a nozzle 12 with a nozzle facing the core and the cavity. A pressing block 13 is arranged in each of the four guide holes 4 of the movable mold 1. The pressing block 13 follows the guide hole 4 and slides on the guide column 3 and slides in the groove 11. When the movable mold 1 and the static mold 2 are molded together, the second hose 10 is compressed in the groove 11; when the movable mold 1 and the static mold 2 are molded together, not only the two positioning blocks 6 are inserted into the two positioning cavities 5, but also the two positioning blocks 6 squeeze the two liquid capsules 7 respectively, so that the two liquid capsules 7 are compressed and deflated, and the coolant in the two liquid capsules 7 is respectively injected into the two first hoses 8 before and after them, and when the two second hoses 10 are compressed and locked, the first hoses 8 are forced to expand and store pressure.

[0030] like Figure 2 , Figure 3 As shown, two front and rear receiving grooves 14 are respectively provided at the left and right ends of the static mold 2, and the front and rear receiving grooves 14 are symmetrically arranged on the front and rear sides of the liquid capsule 7. The first hose 8 connected to the front and rear ends of the liquid capsule 7 enters the front and rear receiving grooves 14 respectively, which not only concentrates the liquid capsule 7 on the mold and reduces the occupied space, but also makes the first hose 8 as close to the mold cavity as possible, so that when the mold is injected with high-temperature fluid, it shows its high temperature resistance.

[0031] like Figures 7 to 10 As shown, the inner end of the pressing block 13 is close to the second hose 10, and the inner end of the pressing block 13 is close to the inner surface of the groove 11 where it is located. A rounded corner 15 is provided from the inner end of the pressing block 13 to the bottom. A bending portion 16 is provided on the second hose 10, which is bent upward and then bent toward the opening direction of the groove 11. After the pressing block 13 descends, the rounded corner 15 is used to press on the bending portion 16 to collapse the second hose 10. The nozzle 12 is connected to the bending portion 16 and the nozzle direction is toward the opening of the groove 11. The bending portion 16 is bent upward, and the highest degree of bending is located at the nozzle 12. Therefore, when the pressing block 13 descends along the groove 11 where it is located, the rounded corner 15 is used to press the bending portion 16 against the groove wall of the groove 11, so that the bending portion becomes deflated (that is, the second hose 10 is collapsed, and that is, the nozzle 12 is automatically closed).

[0032] like Figures 3 to 5As shown, the left and right ends of the static mold 2 are installed with connecting frames 17, the left end of the static mold 2 is installed with a first coolant tank 18 through the connecting frame 17, and the right end of the static mold 2 is installed with a second coolant tank 181 through the connecting frame 17. A pipe 19 is connected between the first coolant tank 18 and the liquid capsule 7 on the left, and a pipe 19 is connected between the second coolant tank 181 and the liquid capsule 7 on the right. The installation height of the first coolant tank 18 and the second coolant tank 181 is higher than the liquid capsule 7, so that a high position difference is formed between the first coolant tank 18 and the second coolant tank 181 and the liquid capsule 7 on the same side. The first coolant tank 18 serves the liquid capsule 7 on the same side. When the dynamic and static molds are opened, the coolant in the first coolant tank 18 is automatically compensated to the liquid capsule 7 on the same side through the pipe 19; similarly, when the dynamic and static molds are opened, the coolant in the second coolant tank 181 is automatically compensated to the liquid capsule 7 on the same side through the pipe 19.

[0033] Working principle and effect: When in use, the movable mold 1 is fixed on the action side of the injection molding machine, the static mold 2 is fixed on the static side of the injection molding machine, and the pouring tubes 21 on both sides are connected to the fluid source. The action side of the injection molding machine brings the movable mold 1 and the static mold 2 together, and the pouring tube 21 injects the fluid into the cavity and the core after the movable mold 1 and the static mold 2 are combined. As the movable mold 1 and the static mold 2 are combined, the fluid is molded. In addition, the movable mold 1 moves relative to the static mold 2, and the movable mold 1 inserts the two positioning blocks 6 into the positioning cavities 5 at both ends of the static mold 2. As the movable mold 1 is completely combined with the static mold 2, the two positioning blocks 6 are pressed against the two liquid capsules 7 respectively. The two liquid capsules 7 are squeezed and shortened. The two liquid capsules 7 are compressed and shortened. The coolant in the liquid capsules 7 is compressed by the water pressure. The one-way valve is opened from the bottom and injected into the four first hoses 8 at the same time. When the movable mold 1 is closed relative to the static mold 2, the four pressing blocks 13 are pressed along the grooves 11 on the four guide pillars 3 toward the bending parts 16 of the four second hoses 10, so that the bending parts 16 of the four second hoses 10 are simultaneously compressed in the grooves 11 of the four guide pillars 3. As the coolant is injected into the four first hoses 8 by the liquid capsule 7, and as the second hoses 10 at the other ends of the four first hoses 8 are compressed in the grooves 11 and locked (i.e., the nozzles 12 on the four second hoses 10 do not work), when the liquid capsule 7 injects the coolant into the four first hoses 8, the four first hoses 8 are forced to expand and enlarge, and a large amount of coolant is temporarily stored in the four first hoses 8 in the form of hydraulic pressure. In the first hose 8, when the action end of the injection molding machine brings the movable mold 1 to part the mold relative to the static mold 2 (open the mold), the two positioning blocks 6 are separated from the two liquid capsules 7, and the shape of the liquid capsule 7 is restored. At the same time, the first coolant tank 18 and the second coolant tank 181 are used to automatically replenish the coolant to the two liquid capsules 7 through the pipeline 19. At the same time, as the movable mold 1 is parted relative to the static mold 2, the four pressing blocks 13 will also move upward along the grooves 11 on the four guide pillars 3. The four pressing blocks 13 are separated from the bending parts 16 on the four second hoses 10, and the four bending parts 16 lose the squeezing effect. The four second hoses 10 are compressed and restored to their original state. At this time, the coolant collected in the four first hoses 8 in the form of water pressure will be quickly sprayed into the four second hoses through the four metal pipes 9. In the second hoses 10, since the coolant is stored in the first hose 8 in advance in the form of water pressure in a large amount, once the four second hoses 10 lose the locking effect, the coolant will be sprayed outward through the four nozzles 12. Since the spraying direction of the nozzle 12 faces the opening direction of the four grooves 11, and the opening direction of the four grooves 11 faces the cavity, the coolant is sprayed toward the cavity through the four nozzles 12. Since the mold 1 is separated from the static mold 2, the molded product is located in the cavity, the coolant acts on the molded product in the form of high-pressure spray, so that the molded product is cooled rapidly until the coolant compressed in the first hose 8 in advance is completely drained, and the four nozzles 12 will automatically stop the spraying action.The nozzle 12 is elliptical in shape. When the cooling liquid is sprayed outward, the cooling liquid acts on the injection molded product over a large area, thereby improving the cooling efficiency of the injection molded product. The four nozzles 12 stop spraying liquid without manual operation or complicated mechanical structure, and the control method has a simple structure.

[0034] To sum up, as the movable mold 1 and the static mold 2 are closed, not only the injection molding of the injection material (fluid) is completed between the cavity and the core between the movable mold 1 and the static mold 2, but also the mold closing action is used to inject coolant into the four first hoses 8 in advance and form water pressure, and the mold closing action is also used to control the second hoses 10 in the four guide pillars 3 (the nozzle 12 does not work), and as the movable mold 1 and the static mold 2 are separated, the four second hoses 10 can be controlled to automatically spray liquid outward, which not only utilizes the opening and closing action of the injection mold to realize automatic cooling of the injection molded part before returning the material, eliminating the complex piping and complex control method in the original injection mold, but also expands and applies the action principle of the injection mold and the injection molding machine.

[0035] like Figure 4 , Fig.10 As shown, the shape of the nozzle 12 is elliptical, and the nozzle opening on the nozzle 12 is opened on the elliptical surface in the form of mesh holes. The nozzle 12 shown in the figure is a single elliptical shape. During actual assembly, multiple elliptical nozzles 12 can be installed on the same second hose 10 to increase the spraying area for the injection molded product.

[0036] It needs further explanation: Figure 4 As shown, the front and rear sides of the static mold 2 are provided with pouring holes 20, the inner ends of the pouring holes 20 enter the mold cavity, the number of the pouring holes 20 is greater than the number of the mold cavities, at least one group of pouring tubes 21 is installed on the pouring holes 20 on the same side, and the pouring tubes 21 on both sides are connected to the same pouring fluid source. The outer ends of the pouring tubes 21 are connected to the injection machine, which is a prior art and is an initial device for providing injection molding materials (fluid) to the mold. The shapes of the mold cavity and the core in the figure of the present invention only represent the molding method of the injection mold, and are not limited to the specific structure of the mold cavity and the core as shown in the figure.

[0037] It needs to be further explained that if Figure 5 As shown, the liquid capsule 7 is in the shape of rubber corrugations. Figure 3As shown, the first hose 8 is a rubber bellows, and a one-way valve is installed on the first hose 8. When the liquid capsule 7 is squeezed by the positioning block 6, compression can be achieved by utilizing its corrugated shape, and the cooling liquid is pressed into the first hose 8 by utilizing its compression performance. As the compression degree of the liquid capsule 7 increases, the coolant will push open the one-way valve in the form of water pressure and flow into the first hose 8. At the same time, as the second hose 10 at the other end of the first hose 8 is compressed and locked by the pressing block 13, when a steady stream of coolant flows into the first hose 8, it expands and becomes larger by utilizing its rubber corrugated shape, and the coolant is temporarily stored in the tube cavity in the form of water pressure.

[0038] It should be further explained that the nozzle direction of the nozzle 12 passes through the groove 11 and faces the core and the cavity. The opening directions of the groove 11 on the left front guide column 3 are opposite to the opening directions of the groove 11 on the right rear guide column 3, and the opening directions of the groove 11 on the left rear guide column 3 are opposite to the opening directions of the groove 11 on the right front guide column 3, that is, the four guide columns 3 open the grooves 11 in a diagonal manner, which is equivalent to aligning the four nozzles 12 with the cavity. Of course, if the cavity is irregular, the opening of the groove 11 and the direction of the nozzle of the nozzle 12 are toward the setting position of the cavity, which ensures that the coolant sprayed by the nozzle 12 acts on the injection molded product to the greatest extent.

[0039] The above orientation designations do not represent the specific orientations of the components in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme, and the orientations are described relatively with reference to the figures. In essence, the specific orientations of the components are described according to their actual installation and actual use as well as the customary orientations of technicians in this field. This is hereby explained.

[0040] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant injection mold, characterized in that: The invention comprises a movable mold (1) and a static mold (2) which forms a mold opening and closing operation with the movable mold (1), wherein guide pillars (3) are arranged on four corners of the molding surface of the static mold (2), and guide holes (4) are arranged on four corners of the molding surface of the movable mold (1), wherein the guide holes (4) are slidably fitted on the guide pillars (3), and positioning cavities (5) are arranged on the left and right ends of the static mold (2), and two positioning blocks (6) are fixed on the left and right ends of the movable mold (1), and liquid capsules (7) are arranged in the left and right positioning cavities (5), respectively, and a first hose (8) is installed on the front and rear sides of the two liquid capsules (7), and each of the first hoses (8) is connected to a metal pipe (9), and each of the metal pipes (9) enters into one of the guide pillars (3) and is connected to a second hose (10), and each of the guide pillars (3) is provided with a groove (11), and the groove (11) faces the mold core and the mold cavity, and each of the second hoses (10) is connected to the mold core and the mold cavity. A nozzle (12) with a nozzle facing the core and the cavity is respectively installed on the tube (10); a pressing block (13) is arranged in each of the four guide holes (4) of the movable mold (1); the pressing block (13) follows the guide hole (4) and slides on the guide column (3) and slides in the groove (11); when the movable mold (1) and the static mold (2) are closed, the second hose (10) is compressed in the groove (11); when the movable mold (1) and the static mold (2) are closed, not only the two positioning blocks (6) are inserted into the two positioning cavities (5), but also the two positioning blocks (6) squeeze the two liquid bags (7) respectively, so that the two liquid bags (7) are compressed and deflated, and the coolant in the two liquid bags (7) is respectively injected into the two first hoses (8) in front and behind, and when the two second hoses (10) are compressed and locked, the first hose (8) is forced to expand and store pressure.

2. A high temperature resistant injection mold according to claim 1, characterized in that: The left and right ends of the static mold (2) are each provided with two front and rear receiving grooves (14), and the front and rear receiving grooves (14) are symmetrically arranged on the front and rear sides of the liquid bag (7), and the first hose (8) connected to the front and rear ends of the liquid bag (7) enters the front and rear receiving grooves (14) respectively.

3. A high temperature resistant injection mold according to claim 2, characterized in that: The liquid bag (7) is in the shape of a rubber corrugation, the first hose (8) is a rubber bellows, and a one-way valve is installed on the first hose (8).

4. A high temperature resistant injection mold according to claim 3, characterized in that: The nozzle direction of the nozzle head (12) passes through the groove (11) and faces the core and the cavity. The opening directions of the groove (11) on the left front guide column (3) and the groove (11) on the right rear guide column (3) are opposite to each other, and the opening directions of the groove (11) on the left rear guide column (3) and the groove (11) on the right front guide column (3) are opposite to each other.

5. A high temperature resistant injection mold according to claim 4, characterized in that: The inner end of the pressing block (13) is close to the second hose (10), and the inner end of the pressing block (13) is close to the inner surface of the groove (11) where it is located. A rounded corner (15) is provided from the inner end to the bottom of the pressing block (13). The second hose (10) is provided with a bending portion (16) that bends upward and then bends toward the opening direction of the groove (11). After the pressing block (13) is lowered, the rounded corner (15) is used to press on the bending portion (16) to collapse the second hose (10). The nozzle (12) is connected to the bending portion (16) and the nozzle direction is toward the opening of the groove (11).

6. A high temperature resistant injection mold according to claim 5, characterized in that: The left and right ends of the static mold (2) are equipped with connecting frames (17); the left end of the static mold (2) is equipped with a first coolant tank (18) through the connecting frame (17); the right end of the static mold (2) is equipped with a second coolant tank (181) through the connecting frame (17); a pipe (19) is connected between the first coolant tank (18) and the liquid bag (7) on the left; a pipe (19) is connected between the second coolant tank (181) and the liquid bag (7) on the right; the installation height of the first coolant tank (18) and the second coolant tank (181) is higher than that of the liquid bag (7), so that a height difference is formed between the first coolant tank (18) and the second coolant tank (181) and the liquid bag (7) on the same side.

7. A high temperature resistant injection mold according to claim 6, characterized in that: The shape of the nozzle (12) is elliptical, and the nozzle opening on the nozzle (12) is opened on the elliptical surface in the form of mesh holes.

8. A high temperature resistant injection mold according to claim 7, characterized in that: The static mold (2) is provided with pouring holes (20) on the front and rear sides, the inner ends of the pouring holes (20) enter the mold cavity, the number of the pouring holes (20) is greater than the number of the mold cavities, and at least one group of pouring tubes (21) is installed on the pouring holes (20) on the same side, and the pouring tubes (21) on both sides are connected to the same pouring fluid source.

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