Injection mold for water valve eight-way valve housing

Abstract

The utility model relates to the production technical field of parts for new energy vehicles, in order to improve the demoulding efficiency of water valve eight -way valve shell, the utility model provides a injection mold of water valve eight -way valve shell, wherein, the die core is provided with injection slot and the fixed hole that communicates with injection slot, in the delay piece, the fixed block is located at the periphery of injection slot, and the delay end of fixed block is provided with delay inclined guide hole, the inner diameter of this delay inclined guide hole is greater than the diameter of inclined guide column, and the delay inclined guide hole is located at the periphery of die core, and the fixed end of fixed block is inserted in fixed hole, the positioning end of inclined guide column is inclined to injection slot and is connected with the front mould in injection mold, and the free end of inclined guide column is inserted in delay inclined guide hole and is inclined to the direction away from injection slot, when the mould is closed, the fixed end surface of fixed block is aligned with the outside wall of injection slot, and the inner wall of delay end of inclined guide column is close to delay inclined guide hole away. Adopt the injection mold of water valve eight -way valve shell of the utility model, can improve the demoulding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology of parts for new energy vehicles, and in particular to an injection mold for an eight-way valve shell for a new energy vehicle. Background Technology

[0002] Using existing injection molds to injection mold and form such as Figure 1 and 2 When designing the eight-way valve housing 01, a front mold groove is typically provided on the front mold core, and ribs are provided on the bottom and walls of the front mold groove to form the product structure 011 on the eight-way valve 01. Inserts are provided in the rear mold core to be inserted into the front mold groove and cooperate with it to form the injection mold groove. Because the product structure 011 on the eight-way valve housing 01 is located in the front mold groove, the eight-way valve housing 01 easily sticks to the front mold during demolding, resulting in difficult demolding and low demolding efficiency. Utility Model Content

[0003] To improve the demolding efficiency of the eight-way valve housing, this utility model proposes an injection mold for the eight-way valve housing. The injection mold includes a mold core and a delay component. The mold core is provided with an injection groove for injection molding the eight-way valve housing. The mold core is provided with a fixing hole communicating with the injection groove.

[0004] The delay component includes a fixed block and an inclined guide post. The fixed block is located on the periphery of the injection groove. The delay end of the fixed block is provided with a delay inclined guide hole. The inner diameter of the delay inclined guide hole is larger than the diameter of the inclined guide post. The delay inclined guide hole is located on the periphery of the mold core. The fixed end of the fixed block is inserted into the fixed hole. The positioning end of the inclined guide post is inclined towards the injection groove and connected to the front mold in the injection mold. The free end of the inclined guide post is inserted into the delay inclined guide hole and inclined away from the injection groove.

[0005] When the mold is closed, the fixed end face of the fixed block is aligned with the outer wall of the injection groove on the mold core, and the inclined guide post is away from the delayed inclined guide hole and close to the inner wall of the delayed end.

[0006] After the eight-way valve housing of this utility model is formed by injection molding using an injection mold, during the mold opening process, the front mold and the rear mold in the mold core separate. The inclined guide post moves simultaneously with the front mold. Before the inclined guide post adheres to the inner wall near the delay end of the delayed inclined guide hole, the fixed end face of the fixing block abuts against the outer wall of the injection-molded eight-way valve housing, thereby separating the injection-molded eight-way valve housing from the front mold. After the inclined guide post adheres to the inner wall near the delay end of the delayed inclined guide hole, the fixing block moves away from the injection groove under the drive of the inclined guide post, thereby separating the fixed end face of the fixing block from the outer wall of the injection-molded eight-way valve housing. Therefore, by using the injection mold of this utility model to form the eight-way valve housing, the injection-molded eight-way valve housing can avoid sticking to the front mold during demolding, improving demolding efficiency.

[0007] Preferably, the fixing block has a rib groove on its fixing end face. In this way, during the demolding process, before the fixing block separates from the injection-molded eight-way valve body, the fixing block can use the rib groove on its fixing end face to hold the ribs on the outer wall of the eight-way valve body, preventing the eight-way valve body from rotating and misaligning during demolding.

[0008] Preferably, the delay component includes a positioning block, which is fixedly mounted on the front mold plate. The positioning block has a positioning angled hole for mounting the positioning end of the inclined guide post, and a locking platform for engaging the positioning end of the inclined guide post is provided at the end of the positioning angled hole away from the fixing block. In this way, the inclined guide post is connected to the front mold plate in the front mold through the positioning block, facilitating both the fixing of the inclined guide post and its replacement according to injection molding needs. Furthermore, the positioning block has a limit stop, which is away from the front mold plate. The limit stop surface of the limit stop facing the fixing block is parallel and abuts against the inclined guide surface on the fixing block and is parallel to the central axis of the delay inclined guide hole. Thus, because the mutually parallel and abutting limit stop surface and inclined guide surface are parallel to the central axis of the delay inclined guide hole, the limit stop surface and inclined guide surface slide together during mold opening or closing, preventing the limit stop and fixing block from jamming during mold opening or closing, thus improving injection molding efficiency.

[0009] Preferably, a protective pad is provided between the limiting block and the fixing block, and the protective pad is parallel and fitted to the inclined guide surface of the fixing block. This protective pad prevents wear on the limiting block and the fixing block during mold opening and closing, thus avoiding impact on injection molding efficiency. Furthermore, a protective positioning groove is provided on the limiting surface of the limiting block, and the protective pad is installed and fixed in the protective positioning groove. This protective positioning groove on the limiting surface of the limiting block for installing and fixing the protective pad protects the inclined guide surface of the fixing block, preventing wear on the inclined guide surface of the fixing block during mold opening and closing.

[0010] Preferably, the positioning block is installed and fixed in the positioning groove on the front template. In this way, the positioning block is installed and fixed in the positioning groove on the front template, which can prevent the positioning block from being misaligned due to force during mold opening and closing, thus affecting the delay effect of the fixed delay component.

[0011] Preferably, the mold core includes a front mold core and a rear mold core. The front mold core is provided with a front mold groove, in which a front mold insert is assembled. The edge of the front mold insert facing the front insert end of the rear mold core is provided with an insert post. The rear mold core is provided with a rear mold groove, in which a rear mold insert is assembled. The rear mold insert is provided with multiple ejector pin through holes for inserting ejector pins. In the mold closed state, the front mold core and the rear mold core are engaged. The insert post on the front mold insert abuts against the rear mold core around the rear mold groove. The insert end of the rear mold insert is inserted into the front mold groove and close to the front insert end of the front mold insert. In this way, during mold closing, the front mold insert, rear mold insert, front mold groove on the front mold core, and rear mold core can be used to form the injection groove required for injection molding. The structure of the front mold insert, rear mold insert, and front mold groove can be adjusted according to the structure of the water valve eight-way valve shell formed by injection molding to meet the injection molding requirements. During mold opening, the ejector rod installed in the ejector rod through hole on the rear mold insert can be used to push the water valve eight-way valve shell formed by injection molding, so that the water valve eight-way valve shell is separated from the rear mold insert, and demolding is completed.

[0012] Preferably, the injection mold includes a demolding mechanism, which includes a demolding ejector pin and a demolding elastic element. The demolding ejector pin is installed in a demolding through hole on the front mold insert, and a demolding groove is provided at the end of the demolding ejector pin facing the front mold plate. The demolding elastic element is installed in the demolding groove. When the mold is closed, one end of the demolding elastic element abuts against the front mold plate, and the other end of the demolding elastic element abuts against the bottom of the demolding groove. In this way, during the mold opening process, the tension of the demolding elastic element in the demolding mechanism can be used to push the demolding ejector pin, thereby pushing the injection-molded water valve eight-way valve shell, separating the water valve eight-way valve shell from the front mold, and avoiding the impact of demolding efficiency due to the water valve eight-way valve shell sticking to the front mold. Further, the demolding elastic element is a demolding spring. In this way, using a demolding spring as the demolding elastic element is simple and convenient to select and install. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first angle structure of the eight-way water valve housing.

[0014] Figure 2 This is a schematic diagram of the second angle structure of the eight-way water valve housing.

[0015] Figure 3 This is a schematic diagram of the injection mold for the eight-way valve housing of the present invention from the first angle.

[0016] Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure in the diagram;

[0017] Figure 5 This is a schematic diagram of the second angle structure of the injection mold for the eight-way valve housing of the present invention;

[0018] Figure 6 for Figure 5 Schematic diagram of the BB cross-sectional structure in the middle;

[0019] Figure 7 for Figure 6 A magnified schematic diagram of the Q-axis. Detailed Implementation

[0020] Below, in conjunction with Figures 3 to 7 This paper provides a detailed description of the injection mold for the eight-way valve housing of the present invention.

[0021] like Figures 3 to 7As shown, the injection mold for the eight-way valve housing of this utility model includes a mold core and a delay component. The mold core has an injection groove (not shown) for forming the eight-way valve housing, and a fixing hole (not shown) communicating with the injection groove. The delay component includes a fixing block 11 and an inclined guide post 12. The fixing block 11 is located on the periphery of the injection groove, and the delay end 111 of the fixing block 11 has a delay inclined guide hole 1111. The inner diameter of the delay inclined guide hole 1111 is larger than the diameter of the inclined guide post 12. The delay inclined guide hole 1111 is located on the periphery of the mold core, and the fixing end 112 of the fixing block 11 is inserted into the fixing hole. The positioning end of the inclined guide post 12 is inclined towards the injection groove and connected to the front mold in the injection mold. The free end of the inclined guide post 12 is inserted into the delay inclined guide hole 1111 and inclined away from the injection groove. When the eight-way valve housing of this utility model is in the mold-closed state, the fixed end face of the fixing block 11 is aligned with the outer wall of the injection groove on the mold core, and the inclined guide post 12 is away from the delayed inclined guide hole 1111 and close to the inner wall of the delayed end 111. Preferably, a rib groove (not shown in the figure) is provided on the fixed end face of the fixing block 11. In this way, during the demolding process, before the fixing block 11 separates from the injection-molded eight-way valve housing 2, the fixing block 11 can use the rib groove on the fixed end face to hold the rib 21 on the outer wall of the eight-way valve housing 2, so as to prevent the eight-way valve housing 2 from rotating and misaligning during the demolding process. Preferably, the delayed component includes a positioning block 13, which is installed and fixed on the front template 31. The positioning block 13 is provided with a positioning inclined hole (not shown in the figure) for installing the positioning end 121 of the inclined guide post 12, and the end of the positioning inclined hole away from the fixing block 11 is provided with a locking platform 131 for locking the positioning end 121 of the inclined guide post 12. In this way, the inclined guide post 12 is connected to the front template 31 in the front mold through the positioning block 13, which facilitates both fixing the inclined guide post 12 and replacing it according to injection molding needs. Preferably, the positioning block 13 is provided with a limit stop 132. The limit stop 132 is away from the front template 31, and the limit stop surface (not shown in the figure) of the limit stop 132 facing the fixed block 11 is parallel to and attached to the inclined guide surface (not shown in the figure) on the fixed block 11, and is parallel to the central axis of the delayed inclined guide hole 1111. In this way, since the mutually parallel and attached limit stop surface and inclined guide surface are parallel to the central axis of the delayed inclined guide hole 1111, the limit stop surface and inclined guide surface slide together during mold opening or closing, which can prevent the limit stop 132 and the fixed block 11 from jamming during mold opening or closing, affecting the mold opening or closing efficiency and improving injection molding efficiency. Preferably, a protective pad 14 is provided between the limiting block 132 and the fixing block 11, and the protective pad 14 is parallel and fitted to the inclined guide surface of the fixing block 11. Thus, providing the protective pad 14 between the limiting block 132 and the fixing block 11 can prevent wear on the limiting block 132 and the fixing block 11 during mold opening and closing, thus avoiding impact on injection molding efficiency. Preferably, a protective positioning groove (not shown in the figure) is provided on the limiting surface of the limiting block 132, and the protective pad 14 is installed and fixed in the protective positioning groove.Thus, a protective positioning groove is provided on the limiting stop surface of the limiting stop block 132 to install and fix the protective pad 14, thereby protecting the inclined guide surface of the fixing block 11 and preventing wear on the inclined guide surface of the fixing block 11 during mold opening and closing. Preferably, the positioning block 13 is installed and fixed in the positioning groove (not shown in the figure) on the front template 31. In this way, the positioning block 13 is installed and fixed in the positioning groove on the front template 31, which can prevent the positioning block 13 from being misaligned under force during mold opening and closing, thus affecting the delay effect of the fixed delay component.

[0022] like Figure 6 and 7As shown, the mold core includes a front mold core 41 and a rear mold core 42. The front mold core 41 is provided with a front mold groove (not shown in the figure), in which a front mold insert 43 is assembled, and an insert post 431 is provided at the edge of the front insert end of the front mold insert 43 facing the rear mold core 42. The rear mold core 42 is provided with a rear mold groove (not shown in the figure), in which a rear mold insert 44 is assembled, and a plurality of ejector pin through holes (not shown in the figure) for inserting ejector pins 45 are provided on the rear mold insert 44. In the mold closing state, the front mold core 41 and the rear mold core 42 are engaged, the insert post 431 on the front mold insert 43 abuts against the rear mold core 42 around the rear mold groove, and the insert end 441 of the rear mold insert 44 is inserted into the front mold groove and close to the front insert end of the front mold insert 42. In this way, during mold closing, the front mold insert 43, the rear mold insert 44, the front mold groove on the front mold core 41, and the rear mold core 42 can be used to form the injection groove required for injection molding. The structure of the front mold insert 43, the rear mold insert 44, and the front mold groove can be adjusted according to the structure of the injection-molded eight-way valve housing 2 to meet the injection molding requirements. During mold opening, the ejector rod 45 installed in the ejector rod through hole on the rear mold insert 44 can be used to push the injection-molded eight-way valve housing 2, so that the eight-way valve housing 2 is separated from the rear mold insert 44, and demolding is completed. Preferably, the injection mold includes a demolding mechanism, which includes a demolding ejector pin 51 and a demolding elastic element 52. The demolding ejector pin 51 is installed in a demolding through hole (not shown in the figure) on the front mold insert 43, and a demolding groove 511 is provided at one end of the demolding ejector pin 51 facing the front mold plate 31. The demolding elastic element 52 is installed in the demolding groove 511. When the mold is closed, one end of the demolding elastic element 52 abuts against the front mold plate 31, and the other end of the demolding elastic element 52 abuts against the bottom of the demolding groove 511. In this way, during the mold opening process, the tension of the demolding elastic element 52 in the demolding mechanism can be used to push the demolding ejector pin 51, thereby pushing the injection-molded water valve eight-way valve housing 2, so that the water valve eight-way valve housing 2 separates from the front mold, avoiding the water valve eight-way valve housing 2 sticking to the front mold and affecting the demolding efficiency. Preferably, a demolding positioning groove 311 is provided on the front mold plate 31, and the front mold positioning groove 311 is arranged opposite to the demolding groove 511. In this way, when the demolding elastic element 52 is installed in the demolding groove 511, the end of the demolding elastic element 52 facing the front mold plate 31 can be inserted and fixed in the front mold positioning groove 311, preventing the demolding elastic element 52 from popping out of the demolding groove 511 during the mold opening process and when the mold is in the open state, thus affecting the mold opening effect and demolding efficiency. Preferably, the demolding elastic element 52 is a demolding spring. Thus, using a demolding spring as the demolding elastic element 52 is simple and convenient to select and install.

[0023] After the eight-way valve housing of this utility model is formed by injection molding using an injection mold, during the mold opening process, the front mold and the rear mold in the mold core separate. The inclined guide post moves simultaneously with the front mold. Before the inclined guide post adheres to the inner wall near the delay end of the delayed inclined guide hole, the fixed end face of the fixing block abuts against the outer wall of the injection-molded eight-way valve housing, thereby separating the injection-molded eight-way valve housing from the front mold. After the inclined guide post adheres to the inner wall near the delay end of the delayed inclined guide hole, the fixing block moves away from the injection groove under the drive of the inclined guide post, thereby separating the fixed end face of the fixing block from the outer wall of the injection-molded eight-way valve housing. Therefore, by using the injection mold of this utility model to form the eight-way valve housing, the injection-molded eight-way valve housing can avoid sticking to the front mold during demolding, improving demolding efficiency.

Claims

1. An injection mold for an eight-way water valve housing, characterized in that, The injection mold includes a mold core and a delay component. The mold core is provided with an injection groove for injection molding to form the eight-way valve body of the water valve. The mold core is provided with a fixing hole communicating with the injection groove. The delay component includes a fixed block and an inclined guide post. The fixed block is located on the periphery of the injection groove. The delay end of the fixed block is provided with a delay inclined guide hole. The inner diameter of the delay inclined guide hole is larger than the diameter of the inclined guide post. The delay inclined guide hole is located on the periphery of the mold core. The fixed end of the fixed block is inserted into the fixed hole. The positioning end of the inclined guide post is inclined towards the injection groove and connected to the front mold in the injection mold. The free end of the inclined guide post is inserted into the delay inclined guide hole and inclined away from the injection groove. When the mold is closed, the fixed end face of the fixed block is aligned with the outer wall of the injection groove on the mold core, and the inclined guide post is away from the delayed inclined guide hole and close to the inner wall of the delayed end.

2. The injection mold for the eight-way water valve housing according to claim 1, characterized in that, The fixing end face of the fixing block is provided with a rib groove.

3. The injection mold for the eight-way water valve housing according to claim 1 or 2, characterized in that, The delay component includes a positioning block, which is installed and fixed on the front template. The positioning block is provided with a positioning oblique hole for installing the positioning end of the oblique guide post, and a locking platform for locking the positioning end of the oblique guide post is provided at the end of the positioning oblique hole away from the fixing block.

4. The injection mold for the eight-way water valve housing according to claim 3, characterized in that, The positioning block is provided with a limit stop, which is away from the front template. The limit stop of the limit stop facing the fixing block is parallel to and attached to the inclined guide surface on the fixing block and is parallel to the central axis of the delay inclined guide hole.

5. The injection mold for the eight-way water valve housing according to claim 4, characterized in that, A protective pad is provided between the limiting block and the fixing block, and the protective pad is parallel and attached to the inclined guide surface of the fixing block.

6. The injection mold for the eight-way water valve housing according to claim 5, characterized in that, The limiting block has a protective positioning groove on its limiting surface, and the protective pad is installed and fixed in the protective positioning groove.

7. The injection mold for the eight-way water valve housing according to claim 4, characterized in that, The positioning block is installed and fixed in the positioning groove on the front template.

8. The injection mold for the eight-way water valve housing according to claim 1 or 2, characterized in that, The mold core includes a front mold core and a rear mold core. The front mold core is provided with a front mold groove, in which a front mold insert is assembled. The front mold insert has a pin at its edge facing the front insert end of the rear mold core. The rear mold core is provided with a rear mold groove, in which a rear mold insert is assembled. The rear mold insert has multiple ejector pin through holes for inserting ejector pins. In the mold closed state, the front mold core and the rear mold core are aligned. The pins on the front mold insert abut against the rear mold core around the rear mold groove. The insert end of the rear mold insert is inserted into the front mold groove and close to the front insert end of the front mold insert.

9. The injection mold for the eight-way water valve housing according to claim 8, characterized in that, The injection mold includes a demolding mechanism, which includes a demolding ejector pin and a demolding elastic element. The demolding ejector pin is installed in a demolding through hole on the front mold insert, and a demolding groove is provided at one end of the demolding ejector pin facing the front mold plate. The demolding elastic element is installed in the demolding groove. When the mold is closed, one end of the demolding elastic element abuts against the front mold plate, and the other end of the demolding elastic element abuts against the bottom of the demolding groove.

10. The injection mold for the eight-way water valve housing according to claim 9, characterized in that, The release elastic element is a release spring.

Images