A bottle preform injection mold with a rapid cooling channel

Abstract

The utility model discloses a bottle embryo injection mold with quick cooling channel relates to bottle embryo injection mold technical field, including first injection frame, second injection frame, third injection frame, fourth injection frame and positioning groove, first injection frame side sets up and draws mechanism, and the draw mechanism includes third injection frame, fifth injection frame, guide frame, guide groove and guide bolt, the guide frame fixed connection is in first injection frame side, and first injection frame side vertical fixed two L shape guide frame that is skew symmetry distribution, and the guide frame side sets up Z shape guide groove, and this structure passes through the bidirectional support of L shape guide frame and skew symmetry layout balanced draw mechanism stress, avoids the inclination jam when sliding, and the broken line track of Z shape guide groove restricts guide bolt transverse displacement, and then enhances the stability of drawing process, ensures the die opening and closing precision.

Description

Technical Field

[0001] This utility model relates to the field of preform injection mold technology, specifically a preform injection mold with a rapid cooling channel. Background Technology

[0002] Preform injection molds are specialized molds used to mold plastic preforms, playing a crucial role in the production of plastic bottles. However, existing preform injection molds have some shortcomings, such as: The injection mold with accelerated cooling described in application number CN202421620570.6 consists of numerous parts such as multiple injection frames, cooling pipes, and guide components. The manufacturing and assembly process is complex and requires high processing precision, which increases the cost of mold manufacturing. Without complex guiding and positioning structures such as guide frames and guide rods, the upper and lower molds may not be accurately aligned during the mold opening and closing process. Long-term use may lead to accelerated mold wear, reduce the mold's service life, and also affect the molding accuracy of the product. Utility Model Content

[0003] The purpose of this utility model is to provide a preform injection mold with a rapid cooling channel to solve the problems mentioned in the background art. Existing patents on the market consist of many parts such as multiple injection frames, cooling pipes, and guide components. The manufacturing and assembly processes are complex, and the requirements for processing precision are high, which increases the cost of mold manufacturing. Without complex guiding and positioning structures such as guide frames and guide rods, the upper and lower molds may not be accurately aligned during the mold opening and closing process. Long-term use may lead to accelerated mold wear, reduced mold life, and also affect the molding accuracy of the product.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a preform injection mold with a rapid cooling channel, comprising a first injection frame, a second injection frame, a third injection frame, a fourth injection frame, and a positioning groove; The first injection molding frame is provided with a retraction mechanism on its side. The retraction mechanism includes a third injection molding frame, a fifth injection molding frame, a guide frame, a guide groove, and a guide bolt. The third and fifth injection molding frames are bolted to the sides of a fixing frame. The fixing frame is a right-angle structure, and the guide bolt is bolted to the side of the fixing frame. The guide bolt is slidably connected to the guide frame through the guide groove. The guide frame is fixedly connected to the side of the first injection molding frame.

[0005] As a preferred technical solution of this utility model, the first injection molding frame is vertically fixed to the side of the guide frame, the guide frame is an L-shaped structure, and there are two guide frames distributed obliquely and symmetrically. The guide frame has a guide groove on its side, and the guide groove is a Z-shaped structure. Using the above technical solution, two L-shaped guide frames are vertically fixed on the side of the first injection frame and are distributed obliquely symmetrically. A Z-shaped guide groove is opened on the side of the guide frame. This structure balances the force of the opening and closing mechanism through the bidirectional support of the L-shaped guide frame and the oblique symmetrical layout, avoiding tilting and jamming during sliding. The zigzag trajectory of the Z-shaped guide groove restricts the lateral displacement of the guide bolt, thereby enhancing the stability of the opening and closing process and ensuring the opening and closing accuracy of the mold.

[0006] As a preferred technical solution of this utility model, a guide rod is fixedly connected to the upper surface of the first injection frame. There are four guide rods arranged in a rectangle. The upper surface of the first injection frame is slidably connected to the second injection frame through the guide rod. The second injection frame is a U-shaped right-angle structure, and a mortise is opened on the upper surface of the second injection frame. Using the above technical solution, four rectangular guide rods are fixedly connected to the upper surface of the first injection frame. The upper part of the first injection frame is slidably connected to the second injection frame with a U-shaped right-angle structure and a mortise on the upper surface through the guide rods. The four rectangular guide rods form a stable support frame, which limits the swaying of the second injection frame when it slides, and makes it move accurately in the vertical direction to avoid mold closing errors. The U-shaped right-angle structure and mortise design provide a positioning reference for the tenon block connection and improve the assembly accuracy of multiple parts.

[0007] As a preferred embodiment of this utility model, the second injection molding frame is fixedly connected to the fixed frame by threads, the side of the fixed frame is fixedly connected to the guide bolt by bolts, and the fixed frame is slidably connected to the guide frame by the guide bolt and the guide groove; Using the above technical solution, the second injection frame is fixedly connected to the fixed frame by threads, the side of the fixed frame is fixed to the guide bolt by bolts, and the fixed frame is slidably connected to the guide frame by the guide bolt and guide groove. The threaded connection ensures the rigid connection between the fixed frame and the second injection frame, preventing loosening caused by cooling vibration. The bolt-fixed guide bolt facilitates disassembly and maintenance. The fixed frame, as an intermediate connecting part, can synchronously transmit motion, making the mold opening and closing actions more coordinated.

[0008] As a preferred technical solution of this utility model, the first injection molding frame is fixedly connected to the first cooling pipe, the first cooling pipe has an L-shaped structure, the upper surface of the first injection molding frame is fixedly connected to the cooling plug by bolts, the cooling plug has a conical structure, and the cooling plug is embedded in and fixedly connected to the third cooling pipe, the third cooling pipe is fitted and fixedly connected to the first cooling pipe, and the first cooling pipe and the third cooling pipe are equipped with sealing rings. Using the above technical solution, the first injection molding frame is fixedly connected to the L-shaped first cooling pipe, and the upper surface of the first injection molding frame is fixedly connected to the tapered cooling plug by bolts. The third cooling pipe is embedded and fixed inside the cooling plug. The third cooling pipe is fitted and fixed to the first cooling pipe and equipped with a sealing ring. The L-shaped cooling pipe and the tapered cooling plug optimize the flow path of the cooling medium and shorten the heat conduction distance. The sealing ring ensures the sealing of the cooling system and prevents the medium leakage from affecting the cooling efficiency.

[0009] As a preferred technical solution of this utility model, the third injection frame and the fifth injection frame are slidably connected above the second injection frame, and the third injection frame and the fifth injection frame are fixedly connected with tenons that fit into the mortises of the second injection frame below. The third injection frame and the fifth injection frame are fixed with connecting blocks by bolts. Using the above technical solution, the third and fifth injection frames are slidably connected above the second injection frame, and the third and fifth injection frames are fixedly connected below with tenons that match the mortise grooves of the second injection frame. The third and fifth injection frames are fixed to the connecting blocks by bolts. The cooperation between the tenons and the mortise grooves achieves precise positioning, and the bolts fixed to the connecting blocks enhance the connection firmness, so that the third and fifth injection frames and the second injection frame form a stable whole, ensuring the reliability of the mold structure.

[0010] As a preferred embodiment of this utility model, a fourth injection molding frame is slidably connected above the guide rod, a pair of second cooling pipes are fixedly connected inside the fourth injection molding frame, and positioning grooves are symmetrically opened below the fourth injection molding frame, the positioning grooves and the connecting block are mutually matched.

[0011] Using the above technical solution, a fourth injection frame is slidably connected above the guide rod, and a pair of second cooling pipes are fixedly connected inside the fourth injection frame. A positioning groove that matches the connecting block is symmetrically opened below the fourth injection frame. The pair of second cooling pipes increase the cooling area. The matching fit between the positioning groove and the connecting block ensures the installation accuracy of the fourth injection frame, making the cooling pipe layout closer to the mold cavity and improving the uniformity and efficiency of cooling.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Two obliquely symmetrical L-shaped guide frames are vertically fixed to the side of the first injection frame, and Z-shaped guide grooves are opened on the side of the guide frames. This structure balances the force of the retraction mechanism through the bidirectional support of the L-shaped guide frames and the obliquely symmetrical layout, avoiding tilting and jamming during sliding. The zigzag trajectory of the Z-shaped guide groove restricts the lateral displacement of the guide bolts, thereby enhancing the stability of the retraction process and ensuring the opening and closing accuracy of the mold. Four rectangular guide rods are fixedly connected to the upper surface of the first injection frame. The upper part of the first injection frame is slidably connected to the second injection frame with a U-shaped right-angle structure and a mortise on the upper surface through the guide rods. The four rectangular guide rods form a stable support frame, restricting the shaking of the second injection frame during sliding, allowing it to move accurately in the vertical direction and avoiding mold closing errors. The U-shaped right-angle structure and mortise design provide a positioning reference for the tenon block connection, improving the assembly accuracy of multiple parts. Moreover, the overall structure is simple and effectively reduces the cost of use. 2. The second injection frame is fixedly connected to the fixed frame by threads. The side of the fixed frame is fixed to the guide bolt by bolts. The fixed frame is slidably connected to the guide frame by the guide bolt and guide groove. The threaded connection ensures the rigid connection between the fixed frame and the second injection frame and prevents loosening caused by cooling vibration. The bolt fixing of the guide bolt facilitates disassembly and maintenance. The fixed frame, as an intermediate connecting part, can transmit motion synchronously, making the mold opening and closing action more coordinated. 3. The first injection molding frame is fixedly connected to the L-shaped first cooling pipe. The upper surface of the first injection molding frame is fixedly connected to the tapered cooling plug by bolts. The third cooling pipe is embedded and fixed inside the cooling plug. The third cooling pipe is fitted and fixed to the first cooling pipe and equipped with a sealing ring. The L-shaped cooling pipe and the tapered cooling plug optimize the flow path of the cooling medium and shorten the heat conduction distance. The sealing ring ensures the sealing of the cooling system and prevents the medium leakage from affecting the cooling efficiency. 4. The third and fifth injection frames are slidably connected above the second injection frame. The lower parts of the third and fifth injection frames are fixedly connected with tenons that mate with the mortise grooves of the second injection frame. The third and fifth injection frames are fixed to the connecting blocks with bolts. The fit between the tenons and mortises achieves precise positioning, and the bolts strengthen the connection, making the third, fifth, and second injection frames a stable whole, ensuring the reliability of the mold structure. The fourth injection frame is slidably connected above the guide rod. A pair of second cooling pipes are fixedly connected inside the fourth injection frame, and symmetrical positioning grooves that mate with the connecting blocks are opened below the fourth injection frame. The pair of second cooling pipes increases the cooling area, and the fit between the positioning grooves and the connecting blocks ensures the installation accuracy of the fourth injection frame, making the cooling pipe layout closer to the mold cavity, improving cooling uniformity and efficiency. Attached Figure Description

[0013] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a schematic diagram of the fourth injection molding frame and the first adjusting bolt of this utility model; Figure 3 This is a schematic diagram of the fifth injection molding frame and connecting block structure of this utility model; Figure 4 This is a schematic diagram of the first injection molding frame and guide rod structure of this utility model; Figure 5 This is a side view of the cross-sectional structure of the first injection molding frame of this utility model; Figure 6 This is a schematic diagram of the cooling plug and the third cooling pipe structure of this utility model; Figure 7 This is a side view of the second injection molding frame of this utility model; Figure 8 This is a schematic diagram of the fixing frame and guide bolt structure of this utility model; Figure 9 This is a schematic diagram of the second cooling pipe and positioning groove structure of this utility model.

[0014] In the diagram: 1. First injection molding frame; 2. Second injection molding frame; 3. Third injection molding frame; 4. Fourth injection molding frame; 5. First adjusting bolt; 6. Second adjusting bolt; 7. First cooling pipe; 8. Second cooling pipe; 9. Guide frame; 10. Guide groove; 11. Guide rod; 12. Fixing frame; 13. Fifth injection molding frame; 14. Connecting block; 15. Guide bolt; 16. Cooling bolt; 17. Third cooling pipe; 18. Positioning groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-9 The present invention provides a preform injection mold with a rapid cooling channel, comprising a first injection frame 1, a second injection frame 2, a third injection frame 3, a fourth injection frame 4, a first adjusting bolt 5, a second adjusting bolt 6, a first cooling pipe 7, a second cooling pipe 8, a guide frame 9, a guide groove 10, a guide rod 11, a fixing frame 12, a fifth injection frame 13, a connecting block 14, a guide bolt 15, a cooling bolt 16, a third cooling pipe 17, and a positioning groove 18. Two obliquely symmetrical L-shaped guide frames 9 are vertically arranged on the side of the first injection frame 1, and Z-shaped guide grooves 10 are opened on its side. The bidirectional support of the L-shaped frames and the obliquely symmetrical layout balance the force on the opening and closing mechanism, and prevent the third injection frame 3 and the fifth injection frame 13 from tilting and getting stuck when sliding. The zigzag trajectory of the Z-shaped groove restricts the lateral displacement of the guide bolt 15. Together with the four rectangular guide rods 11, the second injection frame 2 is vertically guided, forming a multi-dimensional limit, ensuring the accuracy of the mold opening and closing trajectory and improving the mold closing accuracy. The second injection frame 2 is connected to the fixed frame 12 by threads. The fixed frame 12 fixes the guide bolt 15 with bolts and slides and links with the guide groove 10 through the guide bolt 15. The threaded connection resists cooling vibration and prevents loosening. The bolt fixing facilitates the disassembly and replacement of the guide bolt 15. The fixed frame 12 acts as a hub to synchronously drive the third and fifth injection frames 13 to slide, ensuring coordinated opening and closing actions and avoiding structural deformation caused by asynchronous parts. The first injection molding frame 1 is connected to the L-shaped first cooling pipe 7, and the tapered cooling plug 16 is fixed above by bolts. The third cooling pipe 17 is embedded inside and sealed with a sealing ring. The L-shaped pipe is close to the cavity to shorten the heat conduction path, and the tapered plug reduces the fluid resistance. The two pipes form a circulating cooling channel, which increases the heat exchange area. The sealing ring ensures that the system is leak-free, maintains the pressure and flow of the cooling medium, makes the mold temperature field uniform, and accelerates the cooling of the preform. The tenon blocks below the third injection frame 3 and the fifth injection frame 13 fit into the mortise groove of the second injection frame 2. The connecting block 14 is fixed with bolts to form a rigid whole. The tenon and mortise structure ensures the positioning accuracy of the parting surface. The fourth injection frame 4 above the guide rod 11 is connected to the connecting block 14 through the positioning groove 18. Inside, a pair of second cooling pipes 8 form a three-dimensional cooling network with the first and third pipes, covering the entire cavity area. This ensures that the cooling pipes are close to the molding surface, improves cooling efficiency, and reduces residual stress and deformation of the product.

[0017] Working principle: When using a preform injection mold with a rapid cooling channel, the first injection frame 1 is equipped with a retraction mechanism on its side, consisting of a third injection frame 3, a fifth injection frame 13, a guide frame 9, a guide groove 10, and a guide bolt 15. The right-angle guide bolt 15 is bolted to the side of the third and fifth injection frames 13. The guide bolt 15 is slidably connected to the L-shaped guide frame 9 through the Z-shaped guide groove 10. When the mold is retracted, the guide bolt 15 slides along the guide groove 10, which drives the third injection frame 3 and the fifth injection frame 13 to retract. The obliquely symmetrically distributed guide frames 9 are balanced by the force to ensure smooth sliding. When retracted, it slides in the opposite direction, making the mold structure compact and easy to install and disassemble. Four rectangular guide rods 11 are fixed on the upper surface of the first injection frame 1. The second injection frame 2 is slidably connected through the guide rods 11. The upper surface of its U-shaped right-angle structure has a mortise that matches the tenon block below the third and fifth injection frames 13. It is fixed by bolts through the connecting block 14. The second injection frame 2 is also connected to the fixed frame 12 through threads. The fixed frame 12 is fixed with guide bolts 15 by bolts to form a motion transmission hub, so that the second injection frame 2 moves synchronously with the retraction mechanism, ensuring that the movement of each component is coordinated when the mold opens and closes, and improving the assembly accuracy. The first injection frame 1 is connected to the L-shaped first cooling pipe 7. The upper surface is fixed with a conical cooling plug 16 by bolts. The third cooling pipe 17 is embedded in the cooling plug 16. The two are fitted together and fixed with a sealing ring. The cooling medium flows in from the first cooling pipe 7, and is diverted to the third cooling pipe 17 through the conical cooling plug 16, flowing close to the mold cavity to dissipate heat. A pair of second cooling pipes 8 are fixed in the fourth injection frame 4. They are connected to the connecting block 14 through the positioning groove 18. The three sets of cooling pipes form a three-dimensional cooling network that covers the entire area of ​​the mold. During injection molding, molten plastic is injected into the mold cavity, and cooling medium is simultaneously introduced into the first, second, and third cooling pipes 17. The L-shaped first cooling pipe 7 and the conical cooling plug 16 optimize the medium flow path and shorten the heat conduction distance. The third cooling pipe 17 and the first cooling pipe 7 work together to form a circulation channel, increasing the heat exchange area. The second cooling pipe 8 covers the upper part of the mold and works in conjunction with the bottom cooling pipe to ensure that the cooling medium is evenly distributed, quickly removes heat from the mold, and accelerates the solidification of the preform. The mold unfolds via a retracting mechanism, and the second injection frame 2, together with the third and fifth injection frames 13, forms a closed cavity. After the molten plastic is injected, the cooling system is activated, and the three sets of cooling pipes work together to dissipate heat. After cooling is completed, the retracting mechanism retracts the mold, and the fourth injection frame 4 slides upward along the guide rod 11. The third and fifth injection frames 13... This utility model technical solution: A preform injection mold with a rapid cooling channel, including a first injection frame 1, a second injection frame 2, a third injection frame 3, a fourth injection frame 4, a first adjusting bolt 5, a second adjusting bolt 6, a first cooling pipe 7, a second cooling pipe 8, a guide frame 9, a guide groove 10, a guide rod 11, a fixing frame 12, a fifth injection frame 13, a connecting block 14, a guide bolt 15, a cooling bolt 16, a third cooling pipe 17, and a positioning groove 18; Two obliquely symmetrical L-shaped guide frames 9 are vertically arranged on the side of the first injection frame 1, and Z-shaped guide grooves 10 are opened on its side. The bidirectional support of the L-shaped frames and the obliquely symmetrical layout balance the force on the opening and closing mechanism, and prevent the third injection frame 3 and the fifth injection frame 13 from tilting and getting stuck when sliding. The zigzag trajectory of the Z-shaped groove restricts the lateral displacement of the guide bolt 15. Together with the four rectangular guide rods 11, the second injection frame 2 is vertically guided, forming a multi-dimensional limit, ensuring the accuracy of the mold opening and closing trajectory and improving the mold closing accuracy. The second injection frame 2 is connected to the fixed frame 12 by threads. The fixed frame 12 fixes the guide bolt 15 with bolts and slides and links with the guide groove 10 through the guide bolt 15. The threaded connection resists cooling vibration and prevents loosening. The bolt fixing facilitates the disassembly and replacement of the guide bolt 15. The fixed frame 12 acts as a hub to synchronously drive the third and fifth injection frames 13 to slide, ensuring coordinated opening and closing actions and avoiding structural deformation caused by asynchronous parts. The first injection molding frame 1 is connected to the L-shaped first cooling pipe 7, and the tapered cooling plug 16 is fixed above by bolts. The third cooling pipe 17 is embedded inside and sealed with a sealing ring. The L-shaped pipe is close to the cavity to shorten the heat conduction path, and the tapered plug reduces the fluid resistance. The two pipes form a circulating cooling channel, which increases the heat exchange area. The sealing ring ensures that the system is leak-free, maintains the pressure and flow of the cooling medium, makes the mold temperature field uniform, and accelerates the cooling of the preform. The tenon blocks below the third injection frame 3 and the fifth injection frame 13 fit into the mortise groove of the second injection frame 2. The connecting block 14 is fixed with bolts to form a rigid whole. The tenon and mortise structure ensures the positioning accuracy of the parting surface. The fourth injection frame 4 above the guide rod 11 is connected to the connecting block 14 through the positioning groove 18. Inside, a pair of second cooling pipes 8 form a three-dimensional cooling network with the first and third pipes, covering the entire cavity area. This ensures that the cooling pipes are close to the molding surface, improves cooling efficiency, and reduces residual stress and deformation of the product.

[0018] Working principle: When using a preform injection mold with a rapid cooling channel, the first injection frame 1 is equipped with a retraction mechanism on its side, consisting of a third injection frame 3, a fifth injection frame 13, a guide frame 9, a guide groove 10, and a guide bolt 15. The right-angle guide bolt 15 is bolted to the side of the third and fifth injection frames 13. The guide bolt 15 is slidably connected to the L-shaped guide frame 9 through the Z-shaped guide groove 10. When the mold is retracted, the guide bolt 15 slides along the guide groove 10, which drives the third injection frame 3 and the fifth injection frame 13 to retract. The obliquely symmetrically distributed guide frames 9 are balanced by the force to ensure smooth sliding. When retracted, it slides in the opposite direction, making the mold structure compact and easy to install and disassemble. Four rectangular guide rods 11 are fixed on the upper surface of the first injection frame 1. The second injection frame 2 is slidably connected through the guide rods 11. The upper surface of its U-shaped right-angle structure has a mortise that matches the tenon block below the third and fifth injection frames 13. It is fixed by bolts through the connecting block 14. The second injection frame 2 is also connected to the fixed frame 12 through threads. The fixed frame 12 is fixed with guide bolts 15 by bolts to form a motion transmission hub, so that the second injection frame 2 moves synchronously with the retraction mechanism, ensuring that the movement of each component is coordinated when the mold opens and closes, and improving the assembly accuracy. The first injection frame 1 is connected to the L-shaped first cooling pipe 7. The upper surface is fixed with a conical cooling plug 16 by bolts. The third cooling pipe 17 is embedded in the cooling plug 16. The two are fitted together and fixed with a sealing ring. The cooling medium flows in from the first cooling pipe 7, and is diverted to the third cooling pipe 17 through the conical cooling plug 16, flowing close to the mold cavity to dissipate heat. A pair of second cooling pipes 8 are fixed in the fourth injection frame 4. They are connected to the connecting block 14 through the positioning groove 18. The three sets of cooling pipes form a three-dimensional cooling network that covers the entire area of ​​the mold. During injection molding, molten plastic is injected into the mold cavity, and cooling medium is simultaneously introduced into the first, second, and third cooling pipes 17. The L-shaped first cooling pipe 7 and the conical cooling plug 16 optimize the medium flow path and shorten the heat conduction distance. The third cooling pipe 17 and the first cooling pipe 7 work together to form a circulation channel, increasing the heat exchange area. The second cooling pipe 8 covers the upper part of the mold and works in conjunction with the bottom cooling pipe to ensure that the cooling medium is evenly distributed, quickly removes heat from the mold, and accelerates the solidification of the preform. The mold unfolds through the unfolding mechanism, and the second injection frame 2 and the third and fifth injection frames 13 form a closed cavity. After the molten plastic is injected, the cooling system is activated, and the three sets of cooling pipes work together to dissipate heat. After cooling is completed, the unfolding mechanism retracts the mold, the fourth injection frame 4 slides up along the guide rod 11, the third and fifth injection frames 13 separate, and the preform is demolded. The guide frame 9 and the guide rod 11 ensure the precise opening and closing trajectory of the mold, and the tenon and bolt connection ensures the structural rigidity and realizes an efficient production cycle.

[0019] Separation and preform demolding; guide frame 9 and guide rod 11 ensure precise mold opening and closing trajectory; tenon and bolt connection ensures structural rigidity and achieves efficient production cycle.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A preform injection mold with a rapid cooling channel, comprising a first injection frame (1), a second injection frame (2), and a guide rod (11); characterized in that: The first injection molding frame (1) is provided with a retraction mechanism on its side. The retraction mechanism includes a third injection molding frame (3), a fifth injection molding frame (13), a guide frame (9), a guide groove (10), and a guide bolt (15). The third injection molding frame (3) and the fifth injection molding frame (13) are bolted to a fixing frame (12) on their sides. The fixing frame (12) is a right-angle structure, and the guide bolt (15) is bolted to the side of the fixing frame (12). The guide bolt (15) is slidably connected to the guide frame (9) through the guide groove (10). The guide frame (9) is fixedly connected to the side of the first injection molding frame (1).

2. The preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The first injection molding frame (1) has a guide frame (9) vertically fixed on its side. The guide frame (9) is an L-shaped structure, and there are two guide frames (9) in a symmetrical arrangement. The guide frame (9) has a guide groove (10) on its side, and the guide groove (10) is a Z-shaped structure.

3. The preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The first injection frame (1) is fixedly connected to the upper surface of the guide rod (11). There are four guide rods (11) arranged in a rectangle. The first injection frame (1) is slidably connected to the second injection frame (2) through the guide rod (11). The second injection frame (2) is a U-shaped right-angle structure, and a mortise is opened on the upper surface of the second injection frame (2).

4. A preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The second injection molding frame (2) is fixedly connected to the fixed frame (12) by threads. The side of the fixed frame (12) is fixedly connected to the guide bolt (15) by bolts. The fixed frame (12) is slidably connected to the guide frame (9) by the guide bolt (15) and the guide groove (10).

5. A preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The first injection molding frame (1) is fixedly connected to the first cooling pipe (7). The first cooling pipe (7) has an L-shaped structure. The upper surface of the first injection molding frame (1) is fixedly connected to the cooling plug (16) by bolts. The cooling plug (16) has a conical structure, and the third cooling pipe (17) is embedded and fixed inside the cooling plug (16). The third cooling pipe (17) is fitted and fixed to the first cooling pipe (7), and the first cooling pipe (7) and the third cooling pipe (17) are equipped with sealing rings.

6. A preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The third injection frame (3) and the fifth injection frame (13) are slidably connected above the second injection frame (2), and the tenon blocks below the third injection frame (3) and the fifth injection frame (13) are fixedly connected to the mortise of the second injection frame (2). The third injection frame (3) and the fifth injection frame (13) are fixedly connected to the connecting block (14) by bolts.

7. A preform injection mold with a rapid cooling channel according to claim 1, characterized in that, The fourth injection frame (4) is slidably connected above the guide rod (11). A pair of second cooling pipes (8) are fixedly connected inside the fourth injection frame (4). Positioning grooves (18) are symmetrically opened below the fourth injection frame (4). The positioning grooves (18) and the connecting block (14) fit together.

Images