Rapid prototyping injection mold for frequency converter housing

Abstract

The utility model provides a kind of frequency converter shell rapid prototyping injection mold, belong to mould technical field.It includes upper die plate and lower die plate, the upper die plate and lower die plate between being provided with forming cavity, the lower die plate top surface middle part is protrudingly provided with forming insert block, the forming insert block top surface middle part has two hollow part forming area, the hollow part forming area is provided with side glue runner structure, the forming insert block is protrudingly provided with four cylindrical forming blocks.By setting first lower cooling runner structure between lower die plate and forming insert block, setting second lower cooling runner connected with first lower cooling runner in cylindrical forming block, while setting side cooling runner structure in left and right side core-pulling mechanism, front side core-pulling mechanism and rear side core-pulling mechanism, overall cooling to forming critical area is realized, the design solves the problem of insufficient cooling of traditional mould, speeds up the forming speed of frequency converter shell.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a rapid prototyping injection mold for frequency converter housing. Background Technology

[0002] Inverter housings are generally injection molded using molds. The inverter housing molds are equipped with core-pulling mechanisms in all four directions. However, in the existing technology, the core-pulling mechanisms in the inverter housing molds do not have cooling structures. Moreover, the base area of ​​the core-pulling mechanisms and the molding cavity in the inverter housing molds is relatively large. Therefore, the cooling effect of the inverter housing molds is not good, which makes it impossible for the inverter housings to be molded quickly.

[0003] For example, a Chinese patent discloses a rapid prototyping injection mold for a frequency converter housing [application number: 202123422258.5], which includes an injection base; limiting rods fixed to the top of both sides of the injection base, wherein two sets of limiting rods are provided; a mold; and a clamping mechanism. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a rapid prototyping injection mold for inverter housings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rapid prototyping injection mold for a frequency converter housing includes an upper mold plate and a lower mold plate. A molding cavity is provided between the upper mold plate and the lower mold plate. A molding insert protrudes from the center of the top surface of the lower mold plate. The center of the top surface of the molding insert has two hollow molding areas. A side-entry flow channel structure is provided within the hollow molding areas. Four cylindrical forming blocks protrude from the molding insert. A first lower cooling flow channel structure is provided between the lower mold plate and the molding insert. A second lower cooling flow channel structure connected to the first lower cooling flow channel structure is provided within the cylindrical forming blocks. Left and right side core-pulling mechanisms are symmetrically arranged on the left and right sides of the lower mold plate. A front side core-pulling mechanism and a rear side core-pulling mechanism are respectively provided on the front and rear sides of the lower mold plate. Side cooling flow channel structures are provided within the left and right side core-pulling mechanisms, the front side core-pulling mechanism, and the rear side core-pulling mechanism.

[0007] In the aforementioned rapid prototyping injection mold for inverter housing, the left and right core-pulling mechanism includes left and right core-pulling seats that are slidably disposed on the lower template. The inner ends of the left and right core-pulling seats are provided with left and right molding blocks that abut against the sides of the molding inserts. The lower template is also provided with a first translation component connected to the left and right core-pulling seats.

[0008] In the aforementioned rapid prototyping injection mold for inverter housing, the front core-pulling mechanism includes a front core-pulling seat that is slidably disposed on the lower template. The inner end of the front core-pulling seat is provided with a front forming block that abuts against the side of the forming insert. The lower template is also provided with a second translation component connected to the front core-pulling seat.

[0009] In the aforementioned rapid prototyping injection mold for inverter housing, the rear core-pulling mechanism includes a rear core-pulling seat slidably disposed on the lower template. The inner end of the rear core-pulling seat is provided with a rear forming block that abuts against the side of the forming insert. Two drive rods inserted into the rear core-pulling seat are obliquely fixed on the upper template. The drive rods are inclined toward the center of the forming insert.

[0010] In the aforementioned rapid prototyping injection mold for inverter housing, the side cooling channel structure includes an outer cooling channel composed of several first-order vertical channels and several first-order horizontal channels disposed within the left and right side core-pulling seats, the front core-pulling seat, and the rear core-pulling seat, wherein the several first-order vertical channels and several first-order horizontal channels are interconnected; it also includes an inner cooling channel composed of several second-order vertical channels and several second-order horizontal channels disposed within the left and right side molding blocks, the front molding block, and the rear molding block, wherein the several second-order vertical channels and several second-order horizontal channels are interconnected.

[0011] In the aforementioned rapid prototyping injection mold for inverter housing, the outer cooling channel and the inner cooling channel are interconnected, and the outer ends of the left and right core-pulling seats, the front core-pulling seat and the rear core-pulling seat are provided with a first coolant inlet and outlet connected to the outer cooling channel.

[0012] In the aforementioned rapid prototyping injection mold for inverter housing, the first translation component includes a first translation driver horizontally fixed to the left or right side of the lower template, and the output shaft end of the first translation driver is connected to the left and right side core-pulling seats; the second translation component includes a second translation driver horizontally fixed to the front side of the lower template, and the output shaft end of the second translation driver is connected to the front core-pulling seat.

[0013] In the aforementioned rapid prototyping injection mold for inverter housing, the top outer side of the lower template is provided with four core-pulling seat grooves corresponding to the left and right core-pulling seats, the front core-pulling seat, and the rear core-pulling seat, respectively. A T-shaped limiting slider is protruding from the core-pulling seat groove. The bottom of the left and right core-pulling seats, the front core-pulling seat, and the rear core-pulling seat is recessed inward and provided with limiting grooves corresponding to the limiting sliders.

[0014] In the aforementioned rapid prototyping injection mold for inverter housing, the first lower cooling channel structure includes a lower cooling channel composed of several first-order horizontal transverse channels and several first-order horizontal longitudinal channels disposed within the lower template. The lower template has second coolant inlets and outlets connected to the lower cooling channel on its front and rear sides. It also includes an upper cooling channel composed of several second-order horizontal transverse channels and several second-order horizontal longitudinal channels disposed within the molding insert. The upper and lower cooling channels are interconnected. The second lower cooling channel structure includes a vertical cooling channel disposed within the cylindrical forming block. The lower template has a first connecting channel connecting the upper cooling channel and the vertical cooling channel, and a second connecting channel connecting the upper and lower cooling channels.

[0015] In the aforementioned rapid prototyping injection mold for inverter housing, the side-entry flow channel structure includes a branch flow channel provided on the hollowed-out forming area. The branch flow channel has two outlets, and the outlets and the forming cavity are connected to the inner wall of the hollowed-out forming area.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By setting a first lower cooling channel structure between the lower template and the molding insert, and setting a second lower cooling channel connected to the first lower cooling channel in the cylindrical forming block, and setting side cooling channel structures in the left and right side core pulling mechanism, the front side core pulling mechanism and the rear side core pulling mechanism, comprehensive cooling of the key molding area is achieved. This design solves the problem of insufficient cooling of traditional molds and speeds up the molding speed of the inverter housing.

[0018] 2. The hollowed-out forming area can form hollowed-out parts on the molded product. Setting the side-entry glue channel structure in the hollowed-out forming area can make the glue outlet form on the side of the inverter housing, reducing the impact of the glue outlet on the surface quality of the product.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0021] Figure 2 This is a structural diagram of the lower template;

[0022] Figure 3 This is a partial structural diagram of the lower template;

[0023] Figure 4This is a partial structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the front core-pulling mechanism. Detailed Implementation

[0025] like Figures 1-5 As shown, a rapid prototyping injection mold for a frequency converter housing includes an upper mold plate 1 and a lower mold plate 2. A molding cavity is provided between the upper mold plate 1 and the lower mold plate 2. A molding insert 3 is protruding from the center of the top surface of the lower mold plate 2. The center of the top surface of the molding insert 3 has two hollowed-out molding areas 4. A side-entry flow channel structure 5 is provided in the hollowed-out molding areas 4. Four cylindrical forming blocks 6 are protruding from the molding insert 3. A first lower cooling flow channel structure 7 is provided between the lower mold plate 2 and the molding insert 3. A second lower cooling flow channel structure connected to the first lower cooling flow channel structure 7 is provided in the cylindrical forming blocks 6. Left and right side core-pulling mechanisms 8 are symmetrically arranged on the left and right sides of the lower mold plate 2. A front side core-pulling mechanism 9 and a rear side core-pulling mechanism 10 are respectively arranged on the front and rear sides of the lower mold plate 2. A side cooling flow channel structure 11 is provided in the left and right side core-pulling mechanisms 8, the front side core-pulling mechanism 9, and the rear side core-pulling mechanism 10.

[0026] In this utility model, the mold sets a first lower cooling channel structure between the lower template and the forming insert, sets a second lower cooling channel connected to the first lower cooling channel in the cylindrical forming block, and sets side cooling channel structures in the left and right, front and rear core pulling mechanisms to achieve comprehensive cooling of the key forming area. This design solves the problem of insufficient cooling of traditional molds and speeds up the forming speed of the inverter housing.

[0027] Secondly, the hollowed-out forming area can form hollowed-out parts on the formed product. Setting the side-inlet glue channel structure 5 in the hollowed-out forming area can make the glue outlet form on the side of the inverter housing, reducing the impact of the glue outlet on the surface quality of the product.

[0028] Specifically, the left and right side core-pulling mechanism 8 includes left and right side core-pulling seats 12 slidably disposed on the lower template 2. The inner ends of the left and right side core-pulling seats 12 are provided with left and right side forming blocks 13 that abut against the sides of the forming inserts 3. The lower template 2 is also provided with a first translation component connected to the left and right side core-pulling seats 12. The left and right side core-pulling mechanism uses slidably disposed left and right side core-pulling seats in conjunction with the inner ends of the left and right side forming blocks, and is driven by the first translation component. This structure ensures the precision and stability of the left and right side core-pulling action, making the core-pulling process more closely integrated with the forming cavity. In terms of cooling, in conjunction with the side cooling channel structure, it can effectively cool the left and right side forming areas, avoiding insufficient local cooling caused by structural problems of the core-pulling mechanism, further ensuring the uniformity and speed of shell forming.

[0029] Specifically, the front core-pulling mechanism 9 includes a front core-pulling seat 14 slidably disposed on the lower template 2. A front forming block 15 protrudes from the inner end of the front core-pulling seat 14 and abuts against the side of the forming insert 3. The lower template 2 is also provided with a second translation component connected to the front core-pulling seat 14. The front core-pulling mechanism employs a combination design of a slidably disposed front core-pulling seat and a front forming block, driven by the second translation component. This structure makes the front core-pulling action flexible and controllable, ensuring precise forming of the front forming area. Simultaneously, this structure facilitates the arrangement and function of the side cooling channel structure in the front-end area, enhancing the cooling effect of the front forming part and reducing forming delays caused by insufficient front-end cooling.

[0030] Specifically, the rear core-pulling mechanism 10 includes a rear core-pulling seat 16 slidably disposed on the lower template 2. The inner end of the rear core-pulling seat 16 protrudes and abuts against the side of the molding insert 3. Two drive rods 18, inserted into the rear core-pulling seat 16, are obliquely fixed on the upper template 1. The drive rods 18 are inclined towards the center of the molding insert 3. The rear core-pulling mechanism, through the cooperation of the sliding rear core-pulling seat and the rear molding block, utilizes the oblique drive rods on the upper template to drive the rear core-pulling seat. The design of the drive rods being inclined towards the center of the molding insert makes the rear core-pulling action more in line with the structural requirements of the molding cavity, ensuring a smooth and reliable core-pulling process. This structure optimizes the spatial layout of the rear molding area, providing conditions for the effective arrangement of the side cooling channel structure at the rear end, ensuring sufficient cooling of the rear molding area, and improving overall molding efficiency.

[0031] Specifically, the side cooling channel structure 11 includes an outer cooling channel 19, which is composed of several No. 1 vertical channels and several No. 1 horizontal channels and is disposed within the left and right side core-pulling seats 12, the front core-pulling seat 14, and the rear core-pulling seat 16. The No. 1 vertical channels and several No. 1 horizontal channels are interconnected. It also includes an inner cooling channel 20, which is composed of several No. 2 vertical channels and several No. 2 horizontal channels and is disposed within the left and right side molding blocks 13, the front molding block 15, and the rear molding block 17. The No. 2 vertical channels and several No. 2 horizontal channels are interconnected. The side cooling channel structure adopts a double-layer design of outer and inner cooling channels. The outer cooling channel is composed of several No. 1 vertical and horizontal channels and is disposed within the core-pulling seat. The inner cooling channel is composed of several No. 2 vertical and horizontal channels and is disposed within the molding block. This double-layer channel layout allows the cooling medium to penetrate deep into the key molding parts of the core-pulling mechanism, expanding the cooling coverage area and enhancing the uniformity of the cooling effect. This design solves the problem of insufficient cooling depth in traditional core-pulling mechanisms and accelerates the cooling and forming speed of the shell in the core-pulling area.

[0032] Specifically, the outer cooling channel 19 and the inner cooling channel 20 are interconnected. The left and right core-pulling seats 12, the front core-pulling seat 14, and the rear core-pulling seat 16 are provided with first coolant inlets and outlets 21 connected to the outer cooling channel 19 at their outer ends. The interconnection between the outer and inner cooling channels, and the provision of first coolant inlets and outlets connected to the outer cooling channel at the outer ends of the core-pulling seats, allows the cooling medium to circulate smoothly within the dual-layer channels, improving the flow efficiency of the cooling medium and ensuring that the cooling medium can continuously and stably enter the inner cooling channel to cool the molded block. At the same time, the inlet and outlet facilitate the replacement of the cooling medium and the maintenance of the circulation system, ensuring the long-term effective operation of the cooling system and maintaining a stable cooling effect.

[0033] Specifically, the first translation component includes a first translation driver 22 horizontally fixed to the left or right side of the lower template 2, the output shaft end of which is connected to the left or right core-pulling seats 12; the second translation component includes a second translation driver 23 horizontally fixed to the front side of the lower template 2, the output shaft end of which is connected to the front core-pulling seat 14. The first translation component uses a horizontally fixed first translation driver directly connected to the left or right core-pulling seats, and the second translation component uses a horizontally fixed second translation driver connected to the front core-pulling seat. This direct drive method makes the movement accuracy of the core-pulling seats higher and the response faster, ensuring that the core-pulling action is precisely matched with the opening and closing rhythm of the mold. The stable core-pulling action reduces the impact of unstable core-pulling on the molding cavity structure, indirectly ensuring the cooling effect of the cooling channel, which is conducive to the rapid and stable molding of the shell.

[0034] Those skilled in the art should understand that the first translation driver and the second translation driver can be hydraulic cylinders, pneumatic cylinders, or linear motors, etc.

[0035] Specifically, the lower template 2 has four core-pulling slots 24 on its top outer side, corresponding to the left and right core-pulling seats 12, the front core-pulling seat 14, and the rear core-pulling seat 16, respectively. Each core-pulling slot 24 has a protruding T-shaped limiting slider 25. The bottoms of the left and right core-pulling seats 12, the front core-pulling seat 14, and the rear core-pulling seat 16 are recessed inwards, each with a limiting slot corresponding to the limiting slider 25. The T-shaped limiting sliders in the core-pulling slots on the top outer side of the lower template, in conjunction with the limiting slots at the bottom of the core-pulling seats, form a guiding and limiting structure. This structure ensures precise positioning of the core-pulling seats during sliding, preventing offset or wobbling, ensuring the fitting accuracy between the core-pulling seats and the molding inserts. Stable sliding reduces the positional changes of the cooling channels caused by core-pulling seat displacement, ensuring the relative position stability of the cooling channels and the molding area, thereby maintaining consistent cooling effects and promoting uniform and rapid molding of the shell.

[0036] Specifically, the first lower cooling channel structure 7 includes a lower cooling channel composed of several first-order horizontal transverse channels and several first-order horizontal longitudinal channels disposed within the lower template 2. The lower template 2 has second coolant inlets and outlets 26 connected to the lower cooling channel on its front and rear sides. It also includes an upper cooling channel composed of several second-order horizontal transverse channels and several second-order horizontal longitudinal channels disposed within the forming insert 3. The upper cooling channel and the lower cooling channel are interconnected. The second lower cooling channel structure includes a vertical cooling channel disposed within the cylindrical forming block 6. The lower template 2 is provided with a first connecting channel 27 connecting the upper cooling channel and the vertical cooling channel, and a second connecting channel 29 connecting the upper cooling channel and the lower cooling channel. The first lower cooling channel structure adopts a design that connects the lower cooling channel with the upper cooling channel. The lower cooling channel is located inside the lower mold plate, and the upper cooling channel is located inside the molding insert. The vertical cooling channel of the second lower cooling channel is connected to the upper and lower cooling channels through connecting channels. This multi-layer interconnected channel layout achieves comprehensive cooling coverage of the lower mold plate, molding insert, and cylindrical forming block, allowing the cooling medium to flow fully through each major molding component. This design solves the problem of insufficient cooling of molding insert and cylindrical forming block in traditional molds, significantly improves the overall cooling efficiency, and accelerates the shell molding speed.

[0037] Specifically, the side-inlet glue channel structure 5 includes a branching glue channel 28 disposed on the hollowed-out molding area 4. The branching glue channel 28 has two glue outlets, and the glue outlets are connected to the inner wall of the connection between the molding cavity and the hollowed-out molding area 4. This branching glue channel structure allows the glue to flow more evenly into the hollowed-out molding area of ​​the molding cavity, and also allows the glue outlets to form on the side of the product, reducing the impact of the glue outlets on the surface quality of the product. This ensures the uniformity of glue filling within the molding cavity. The uniform glue filling reduces cooling rate differences caused by localized glue accumulation, allowing the cooling channel to function more effectively and further improving the molding quality and speed of the shell.

[0038] The working principle of this utility model is as follows: the mold sets a first lower cooling channel structure between the lower template and the forming insert, sets a second lower cooling channel connected to the first lower cooling channel in the cylindrical forming block, and sets a side cooling channel structure in the left and right sides, front side and rear side core pulling mechanism to achieve comprehensive cooling of the key forming area. This design solves the problem of insufficient cooling of traditional molds, speeds up the forming speed of the inverter housing, and the hollow part forming area can form a hollow part on the formed product. Setting the side glue inlet channel structure 5 in the hollow part forming area can make the glue outlet form on the side of the inverter housing, reducing the impact of the glue outlet on the surface quality of the product.

[0039] The left and right side core-pulling mechanisms employ sliding left and right side core-pulling seats in conjunction with the inner left and right side molding blocks, driven by a first translation component. This structure ensures precise and stable core-pulling action on both sides, making the core-pulling process more closely integrated with the molding cavity. In terms of cooling, the side cooling channel structure effectively cools the left and right molding areas, avoiding insufficient cooling in certain areas due to structural issues with the core-pulling mechanism, further ensuring the uniformity and speed of shell molding. The front core-pulling mechanism uses a combination design of a sliding front core-pulling seat and a front molding block, driven by a second translation component. This structure makes the front core-pulling action flexible and controllable, ensuring precise molding of the front molding area. Simultaneously, this structure facilitates the arrangement and function of the side cooling channel structure in the front area, enhancing the cooling effect of the front molding part and reducing molding delays caused by insufficient front-end cooling. The rear core-pulling mechanism, through a sliding rear... The core-pulling seat cooperates with the rear forming block. The inclined drive rod on the upper template drives the rear core-pulling seat to move. The design of the drive rod tilting towards the center of the forming insert makes the rear core-pulling action more in line with the structural requirements of the forming cavity. The core-pulling process is smooth and reliable. This structure optimizes the spatial layout of the rear forming area and provides conditions for the effective arrangement of the side cooling channel structure at the rear end. It ensures that the rear forming part can be fully cooled and improves the overall forming efficiency. The first translation component adopts a horizontally fixed first translation driver directly connected to the left and right core-pulling seats. The second translation component adopts a horizontally fixed second translation driver connected to the front core-pulling seat. This direct drive method makes the movement accuracy of the core-pulling seat higher and the response faster. It ensures that the core-pulling action is precisely matched with the opening and closing rhythm of the mold. The stable core-pulling action reduces the impact of unstable core-pulling on the forming cavity structure and indirectly ensures the cooling effect of the cooling channel, which is conducive to the rapid and stable forming of the shell.

[0040] The side cooling channel structure adopts a double-layer design with an outer cooling channel and an inner cooling channel. The outer cooling channel consists of several No. 1 vertical and horizontal channels and is located within the core-pulling seat. The inner cooling channel consists of several No. 2 vertical and horizontal channels and is located within the molding block. This double-layer channel layout allows the cooling medium to penetrate deep into the key molding parts of the core-pulling mechanism, expanding the cooling coverage and enhancing the uniformity of the cooling effect. This design solves the problem of insufficient cooling depth in traditional core-pulling mechanisms, accelerating the cooling and molding speed of the shell in the core-pulling area. The outer and inner cooling channels are interconnected, and a first coolant inlet / outlet connected to the outer cooling channel is set at the outer end of the core-pulling seat. This interconnected design allows the cooling medium to circulate smoothly within the double-layer channels, improving the flow efficiency of the cooling medium and ensuring that the cooling medium can continuously and stably enter the inner cooling channel to cool the molding block. At the same time, the inlet / outlet facilitates the replacement of the cooling medium and the maintenance of the circulation system, ensuring the long-term effective operation of the cooling system and maintaining a stable cooling effect.

[0041] A T-shaped limiting slider is installed in the core-pulling seat groove on the top outer side of the lower template. This slider, in conjunction with the limiting groove at the bottom of the core-pulling seat, forms a guiding and limiting structure. This structure ensures precise positioning of the core-pulling seat during sliding, preventing offset or wobbling, and ensuring the fitting accuracy between the core-pulling seat and the molding insert. Stable sliding reduces the positional variation of the cooling channels caused by core-pulling seat displacement, ensuring the relative positional stability of the cooling channels and the molding area, thus maintaining consistent cooling performance and promoting uniform and rapid shell molding. The first lower cooling channel structure adopts a design where the lower cooling channel is connected to the upper cooling channel. The lower cooling channel is located inside the lower template, and the upper cooling channel is located inside the molding insert. The vertical cooling channel of the second lower cooling channel is connected to the upper and lower cooling channels via connecting channels. This multi-layered interconnected channel layout achieves precise positioning of the lower template, The comprehensive cooling coverage of the molding inserts and cylindrical forming blocks ensures that the cooling medium flows fully through all major molding components. This design solves the problem of insufficient cooling of molding inserts and cylindrical forming blocks in traditional molds, significantly improving overall cooling efficiency and accelerating shell molding speed. The side-entry flow channel structure adopts a split-flow flow channel with two outlets. The outlets are connected to the inner sidewalls where the molding cavity and the hollowed-out molding area meet. This split-flow flow design allows the material to flow more evenly into the hollowed-out molding area of ​​the molding cavity, and also allows the outlet to be formed on the side of the product, reducing the impact of the outlet on the surface quality of the product. This ensures the uniformity of material filling in the molding cavity. The uniform material filling reduces the cooling rate differences caused by local material accumulation, allowing the cooling channel to function more effectively and further improving the molding quality and speed of the shell.

[0042] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A rapid prototyping injection mold for a frequency converter housing, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that, A molding cavity is provided between the upper template (1) and the lower template (2). A molding insert (3) is protruding from the center of the top surface of the lower template (2). The molding insert (3) has two hollow molding areas (4) in the center of the top surface. A side-inlet glue channel structure (5) is provided in the hollow molding area (4). Four cylindrical forming blocks (6) are protruding from the molding insert (3). A first lower cooling channel is provided between the lower template (2) and the molding insert (3). Structure (7), the cylindrical forming block (6) is provided with a second lower cooling channel structure connected to the first lower cooling channel structure (7), the lower template (2) is symmetrically provided with left and right side core pulling mechanisms (8) on the left and right sides, the lower template (2) is provided with a front side core pulling mechanism (9) and a rear side core pulling mechanism (10) on the front and rear sides respectively, and the left and right side core pulling mechanisms (8), the front side core pulling mechanism (9) and the rear side core pulling mechanism (10) are provided with side cooling channel structures (11).

2. The rapid prototyping injection mold for inverter housing according to claim 1, characterized in that, The left and right side core pulling mechanism (8) includes left and right side core pulling seats (12) that are slidably disposed on the lower template (2). The inner end of the left and right side core pulling seats (12) is provided with left and right side forming blocks (13) that abut against the side of the forming insert (3). The lower template (2) is also provided with a first translation component connected to the left and right side core pulling seats (12).

3. The rapid prototyping injection mold for inverter housing according to claim 2, characterized in that, The front core-pulling mechanism (9) includes a front core-pulling seat (14) slidably disposed on the lower template (2). The inner end of the front core-pulling seat (14) is provided with a front forming block (15) that abuts against the side of the forming insert (3). The lower template (2) is also provided with a second translation component connected to the front core-pulling seat (14).

4. The rapid prototyping injection mold for inverter housing according to claim 3, characterized in that, The rear core-pulling mechanism (10) includes a rear core-pulling seat (16) slidably disposed on the lower template (2). The inner end of the rear core-pulling seat (16) is provided with a rear forming block (17) that abuts against the side of the forming insert (3). Two drive rods (18) are inclinedly fixed on the upper template (1) and inserted into the rear core-pulling seat (16). The drive rods (18) are inclined toward the center of the forming insert (3).

5. The rapid prototyping injection mold for inverter housing according to claim 4, characterized in that, The side cooling channel structure (11) includes an outer cooling channel (19) arranged in the left and right side core-pulling seats (12), the front core-pulling seat (14) and the rear core-pulling seat (16) and composed of a number of first vertical channels and a number of first horizontal channels, the number of first vertical channels and the number of first horizontal channels are interconnected; it also includes an inner cooling channel (20) arranged in the left and right side molding blocks (13), the front molding block (15) and the rear molding block (17) and composed of a number of second vertical channels and a number of second horizontal channels, the number of second vertical channels and the number of second horizontal channels are interconnected.

6. The rapid prototyping injection mold for inverter housing according to claim 5, characterized in that, The outer cooling channel (19) and the inner cooling channel (20) are interconnected. The left and right core-pulling seats (12), the front core-pulling seat (14) and the rear core-pulling seat (16) are provided with a first coolant inlet and outlet (21) connected to the outer cooling channel (19).

7. The rapid prototyping injection mold for inverter housing according to claim 4, characterized in that, The first translation component includes a first translation driver (22) horizontally fixed on the left or right side of the lower template (2), and the output shaft end of the first translation driver (22) is connected to the left and right side core pull seats (12); the second translation component includes a second translation driver (23) horizontally fixed on the front side of the lower template (2), and the output shaft end of the second translation driver (23) is connected to the front core pull seat (14).

8. The rapid prototyping injection mold for inverter housing according to claim 7, characterized in that, The lower template (2) is provided with four core-pulling seat grooves (24) on the top outer side, which are respectively provided with the left and right core-pulling seats (12), the front core-pulling seat (14) and the rear core-pulling seat (16). A T-shaped limiting slider (25) is provided protruding in the core-pulling seat groove (24). The bottom of the left and right core-pulling seats (12), the front core-pulling seat (14) and the rear core-pulling seat (16) are recessed inward and provided with limiting grooves corresponding to the limiting sliders (25).

9. The rapid prototyping injection mold for inverter housing according to claim 4, characterized in that, The first lower cooling channel structure (7) includes a lower cooling channel composed of several first-order horizontal transverse channels and several first-order horizontal longitudinal channels disposed in the lower template (2), and the lower template (2) is provided with second coolant inlet and outlet (26) connected to the lower cooling channel on the front and rear sides; it also includes an upper cooling channel composed of several second-order horizontal transverse channels and several second-order horizontal longitudinal channels disposed in the molding insert (3); the upper cooling channel and the lower cooling channel are interconnected; the second lower cooling channel structure includes a vertical cooling channel disposed in the cylindrical forming block (6), and the lower template (2) is provided with a first connecting channel (27) connecting the upper cooling channel and the vertical cooling channel and a second connecting channel (29) connecting the upper cooling channel and the lower cooling channel.

10. The rapid prototyping injection mold for inverter housing according to claim 9, characterized in that, The side-entry glue channel structure (5) includes a branching glue channel (28) provided on the hollow part forming area (4). The branching glue channel (28) has two glue outlets. The glue outlets and the forming cavity are connected to the inner wall of the hollow part forming area (4).

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