Water channel sand core mold protection structure
By designing protective structures in the waterway sand core mold, including springs, limiting columns and positioning guide columns, the problem of easy damage to the nozzle and pin rod during disassembly and assembly and use of the mold is solved, and production efficiency and core building accuracy are improved.
Patent Information
- Application Number
- CN202421436952.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-21
AI Technical Summary
During the storage, transportation, storage, installation and disassembly of existing waterway sand core molds, the sand injection board structure is prone to fall off, damage, displacement, and loss of the nozzle. The pin bar is not easy to align with the sand injection hole, causing the pin bar to bend and damage, which affects production efficiency.
A waterway sand core mold protection structure is designed, including setting up through holes and springs on the upper mold, setting up the upper mold disassembly and assembly of the reverse top limit column and the sand injection board disassembly and assembly limit groove. By connecting the fastening block and positioning guide columns and other structures, it ensures that the sand injection board and the ejection board are kept in the correct position during disassembly and assembly and use, and preventing damage to the nozzle and ejection rod.
It effectively protects against wear, loss and damage of the nozzle and pin rod, improves the spare parts life of the mold, reduces debugging time, improves production efficiency, and ensures the core production accuracy of the waterway sand core.
Smart Images
Figure CN222999629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor shell manufacturing, in particular to a protection structure for a water channel core mold. Background Art
[0002] When the motor of a new energy vehicle is working, a large amount of heat will be generated, and a water cooling channel needs to be arranged inside the motor shell to cool and dissipate heat for the motor. The process of producing a motor shell with a water cooling structure is to pour molten aluminum liquid into a die-casting mold, in which a water channel core is pre-installed, and a motor shell with a water channel core is die-cast. After a series of treatments, a motor shell with a spiral water cooling channel is made. Therefore, a water channel core with precise dimensions is very important for the formation of the spiral water cooling channel inside the motor shell.
[0003] Since the diameter of the formed water channel core is generally between 6 and 10 mm, the size is relatively small and the shape and structure are complex. A horizontal core shooting mold is required to complete the core making. Such a water channel core mold needs to use three structures: an upper mold body, a sand shooting plate, and an ejector plate in cooperation to complete the preparation of such cores. Compared with ordinary core molds, there are two more structures: a sand shooting plate and an ejector plate. This structure will cause problems such as the rubber nozzle on the sand shooting plate structure falling off, being damaged, displaced, or lost during storage, transportation, preservation, installation, and disassembly of such water channel core molds, and the ejector rods on the ejector rod plate are not easy to align with the sand shooting holes, resulting in the bending and damage of the ejector rods. In addition, when they cannot be aligned, the ejector rods are very likely to damage the sand shooting holes on the upper mold, resulting in undercuts and core breakage during core making, high mold repair frequency, and long water channel core adjustment time, affecting production efficiency. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a protection structure for a water channel core mold aiming at the defects of the prior art.
[0005] To solve the above technical problems, the technical solution provided by the utility model is as follows:
[0006] A protection structure for a water channel core mold, including an upper mold, a sand shooting plate, and an ejector plate, is characterized in that: a plurality of through holes are arranged on the upper mold, a spring and an upper mold disassembly and assembly anti-ejecting limit post are arranged in the through holes, the lower end of the spring is fixedly connected to the upper mold, the upper end of the spring is fixedly connected to the lower end of the upper mold disassembly and assembly anti-ejecting limit post, the upper mold disassembly and assembly anti-ejecting limit post can move up and down along the through hole, a sand shooting plate disassembly and assembly limit groove is arranged on the lower end surface of the sand shooting plate corresponding to the position of the upper mold disassembly and assembly anti-ejecting limit post, a sand shooting plate disassembly and assembly positioning post is arranged on the upper end surface of the sand shooting plate, a top plate disassembly and assembly positioning post is arranged on the lower end surface of the ejector plate corresponding to the position of the sand shooting plate disassembly and assembly positioning post, and the lower end of the top plate disassembly and assembly positioning post is connected in cooperation with the sand shooting plate disassembly and assembly positioning post.
[0007] Further, it includes a spring ejection distance adjustment block arranged at the bottom of the through hole. The lower end of the spring is connected to the upper die through the spring ejection distance adjustment block. By adjusting the distance between the spring ejection distance adjustment block and the upper die, the ejection distance of the anti-ejection limit post for disassembling and assembling the upper die can be changed.
[0008] Further, there are eight groups of the anti-ejection limit posts for disassembling and assembling the upper die and the limit slots for disassembling and assembling the sand shooting plate, which are symmetrically distributed on both sides of the upper die and the sand shooting plate respectively.
[0009] Further, it also includes several connecting and fastening blocks. When the upper die, the sand shooting plate, and the ejection plate are combined for transportation, the upper and lower ends of the connecting and fastening blocks are respectively connected to the ejection plate and the upper die.
[0010] Further, there are two connecting and fastening blocks, which are symmetrically connected to the side edges of the ejection plate and the upper die respectively.
[0011] Further, ejection rod positioning and guiding posts are arranged on the lower end face of the ejection plate, and positioning pin holes matching with the ejection rod positioning and guiding posts are arranged on the upper end face of the upper die.
[0012] Further, there are two groups of the ejection rod positioning and guiding posts and the positioning pin holes respectively, and they are symmetrically distributed.
[0013] Further, several ejection rod ejection limit posts are arranged on the lower end face of the ejection plate.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: 1. For the horizontal core shooting die, it can effectively prevent problems such as wear, loss of the injection nozzle, damage of the ejector rod, and damage of the sand shooting nozzle caused by frequent disassembly and assembly of the die, improve the service life of spare parts, reduce the die debugging time, and improve the production efficiency. 2. During the transportation of die disassembly and assembly, through the cooperation of structures such as limit posts, limit slots, and connecting fasteners, the injection nozzle on the sand shooting plate is separated from the upper die, which can prevent wear and loss of the injection nozzle and bump deformation of the ejector rod. 3. During the installation and use of the die, through the combined use of positioning and guiding posts, positioning pin holes, and limit posts, the ejector rods on the ejection plate can be accurately inserted into the sand shooting holes of the upper die, improving the accuracy of core ejection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the combined state of the embodiment of the present utility model;
[0016] Figure 2 is the exploded structure of the embodiment of the present utility model Figure 1 ;
[0017] Figure 3 is the exploded structure of the embodiment of the present utility model Figure 2 ;
[0018] Figure 4 This is a sectional view of the upper die structure of an embodiment of the present utility model;
[0019] Figure 5 This is a diagram showing the usage state of the ejector plate of an embodiment of the present utility model;
[0020] Wherein: 1 - upper die, 2 - sand shooting plate, 3 - ejector plate, 4 - connecting fastening block, 11 - through hole, 12 - spring, 13 - upper die disassembly and assembly anti - top limit post, 14 - spring ejection distance adjustment block, 15 - positioning pin hole, 16 - sand shooting hole, 21 - sand shooting plate disassembly and assembly limit groove, 22 - sand shooting plate disassembly and assembly positioning post, 23 - nozzle, 31 - ejector plate disassembly and assembly positioning post, 32 - ejector rod positioning and guiding post, 33 - ejector rod ejection limit post, 34 - ejector rod. Specific embodiments
[0021] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in conjunction with the accompanying drawings. This embodiment is only used to explain the present utility model and does not constitute a limitation to the protection scope of the present utility model.
[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.
[0023] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0024] Figures 1-5 A specific embodiment of a water channel sand core mold protection structure is shown, including an upper die 1, a sand shooting plate 2, an ejector plate 3, and a connecting fastening block 4.
[0025] Such as Figures 1-4As shown in the figure, eight through holes 11 are provided on the upper die 1. The eight through holes 11 are symmetrically distributed. Springs 12 and upper die disassembly and installation anti - top limit posts 13 are arranged in each of the through holes 11. A spring ejection distance adjustment block 14 is connected to the bottom of the through hole 11. The lower end of the spring 12 is connected to the upper die 1 through the spring ejection distance adjustment block 14, and the upper end of the spring 12 is fixedly connected to the lower end of the upper die disassembly and installation anti - top limit post 13. The upper die disassembly and installation anti - top limit post 13 can move up and down along the through hole 11. By adjusting the distance between the spring ejection distance adjustment block 14 and the upper die 1, the ejection distance of the upper die disassembly and installation anti - top limit post 13 can be changed. Two positioning pin holes 15 are provided on the upper end surface of the upper die 1.
[0026] As Figures 1-3 shown, eight sand - shooting plate disassembly and installation limit grooves 21 are provided on the lower end surface of the sand - shooting plate 2 at positions corresponding to the upper die disassembly and installation anti - top limit posts 13. Four sand - shooting plate disassembly and installation positioning posts 22 are provided on the upper end surface of the sand - shooting plate 2. A horizontal sand nozzle 23 is provided on the lower end surface of the sand - shooting plate 2.
[0027] As Figures 1-3 shown, four ejector plate disassembly and installation positioning posts 31 are provided on the lower end surface of the ejector plate 3 at positions corresponding to the sand - shooting plate disassembly and installation positioning posts 22. The lower ends of the ejector plate disassembly and installation positioning posts 31 are connected in cooperation with the sand - shooting plate disassembly and installation positioning posts 22. Two ejector rod positioning and guiding posts 32 are provided on the lower end surface of the ejector plate 3, which are in cooperation with the positioning pin holes 15. A number of ejector rod ejection limit posts 33 are also provided on the lower end surface of the ejector plate 3.
[0028] Two connecting fastening blocks 4 are symmetrically arranged. When the upper die 1, the sand - shooting plate 2, and the ejector plate 3 are combined and transported, the upper and lower ends of the connecting fastening block 4 are respectively connected to the ejector plate 3 and the upper die 1.
[0029] The working principle of the above - mentioned embodiment is as follows:
[0030] When it is necessary to disassemble the mold for transportation, as Figure 1As shown, first remove the sand shooting plate 2 from the sand shooting machine, and position the upper die disassembly and assembly reverse ejection limit post 13 on the upper die 1 in the sand shooting plate disassembly and assembly limit groove 21 of the sand shooting plate 2. Under the action of the spring 12 in the through hole 11, the sand shooting plate 2 will maintain a certain distance from the upper die 1, and the sand nozzle 23 on the sand shooting plate 2 will be disengaged from the upper die 1, which can protect the wear and loss of the sand nozzle 23. The distance between the spring ejection distance adjustment block 14 and the upper die 1 can be adjusted to change the ejection distance of the upper die disassembly and assembly reverse ejection limit post 13, so as to adjust an appropriate reverse ejection force between the upper die 1 and the sand shooting plate 2. Then, position the ejection plate disassembly and assembly positioning post 31 on the ejection plate 3 in the sand shooting plate disassembly and assembly positioning post 22 on the sand shooting plate 2. Finally, use the connecting fastening block 4 to fix the ejection plate 3 and the upper die 1 with screws and transfer them as a whole, so as to protect the ejector rod 34 on the ejection plate 3 and prevent the ejector rod 34 from being knocked and damaged during the transfer and movement of the mold.
[0031] When installing and using the mold for core making, first remove the connecting fastening block 4, fix the ejection plate 3 on the ejection frame of the equipment, and then fix the sand shooting plate 2 on the bottom plate of the sand shooting barrel. First, move the sand shooting plate 2 above the upper die 1, and align the sand nozzle 23 with the sand shooting hole 16 of the upper die 1 for sand shooting operation; after sand shooting, move the sand shooting plate 2 away, and move the ejection plate 3 above the upper die 1. As Figure 5 shown, then, through the cooperation of the ejector rod positioning and guiding post 32 on the ejection plate 3 and the positioning pin hole 15 on the upper die 1, the ejection plate 3 moves along the guidance of the positioning pin hole 15, so that the ejector rod 34 on the ejection plate 3 is accurately inserted into the sand shooting hole 16 of the upper die; as the ejection plate 3 descends, when the lower end of the ejector rod ejection limit post 33 reaches the limit position of the upper die 1, the ejection operation is completed. Under the action of the two ejector rod positioning and guiding posts 32, the ejector rod 34 on the ejection plate 3 is aligned with the sand shooting hole 16 of the upper die 1, effectively protecting the ejector rod 34 from being bent or broken, and reducing the risk of replacing the ejector rod again.
[0032] The above specific implementation manners are only for illustrating the technical concept and structural features of the present invention, aiming to enable those skilled in the relevant art to implement it accordingly. However, the above content does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. A waterway sand core mold protection structure, comprising an upper mold (1), a sand shooting plate (2), and an ejector plate (3), characterized in that: A plurality of through holes (11) are provided on the upper die (1), and a spring (12) and an upper die disassembly and assembly reverse top limit column (13) are provided in the through hole (11); the lower end of the spring (12) is fixedly connected to the upper die (1), and the upper end of the spring (12) is fixedly connected to the lower end of the upper die disassembly and assembly reverse top limit column (13); the upper die disassembly and assembly reverse top limit column (13) can move up and down along the through hole (11); a sand shooting plate disassembly and assembly limit groove (21) is provided at a position of the lower end surface of the sand shooting plate (2) corresponding to the upper die disassembly and assembly reverse top limit column (13); a sand shooting plate disassembly and assembly positioning column (22) is provided at the upper end surface of the sand shooting plate (2); an ejector plate disassembly and assembly positioning column (31) is provided at a position of the lower end surface of the ejector plate (3) corresponding to the sand shooting plate disassembly and assembly positioning column (22); and the lower end of the ejector plate disassembly and assembly positioning column (31) is cooperatively connected with the sand shooting plate disassembly and assembly positioning column (22).
2. A waterway sand core mold protection structure according to claim 1, characterized in that: It also includes a spring ejection distance adjustment block (14) arranged at the bottom of the through hole (11), the lower end of the spring (12) is connected to the upper die via the spring ejection distance adjustment block (14), and the ejection distance of the upper die disassembly and assembly reverse ejection limit column (13) can be changed by adjusting the distance between the spring ejection distance adjustment block (14) and the upper die (1).
3. The waterway sand core mold protection structure according to claim 1, characterized in that: A total of eight groups of upper die disassembly and assembly reverse top limit columns (13) and sandblasting plate disassembly and assembly limit grooves (21) are provided, and are symmetrically distributed on both sides of the upper die (1) and the sandblasting plate (2).
4. The waterway sand core mold protection structure according to claim 1, characterized in that: It also comprises a plurality of connecting and fastening blocks (4). When the upper mold (1), the sandblasting plate (2) and the ejector plate (3) are combined with each other for transportation, the upper and lower ends of the connecting and fastening blocks (4) are respectively connected to the ejector plate (3) and the upper mold (1).
5. A waterway sand core mold protection structure according to claim 4, characterized in that: Two connecting and fastening blocks (4) are provided, which are symmetrically connected to the side edges of the ejection plate (3) and the upper mold (1) respectively.
6. The waterway sand core mold protection structure according to claim 1, characterized in that: A push rod positioning guide column (32) is provided on the lower end surface of the ejection plate (3), and a positioning pin hole (15) matching with the push rod positioning guide column (32) is provided on the upper end surface of the upper mold (1).
7. A waterway sand core mold protection structure according to claim 6, characterized in that: The push rod positioning guide columns (32) and positioning pin holes (15) are respectively provided in two groups and are symmetrically distributed.
8. The waterway sand core mold protection structure according to claim 1, characterized in that: A plurality of ejector rod ejection limiting columns (33) are arranged on the lower end surface of the ejection plate (3).