Automobile part forming mold facilitating wax core demolding
The mold design, which combines cylinders, guide frames, and air supply mechanisms, solves the problem of easy damage to wax cores during the demolding process of traditional wax core molding molds, achieving stable and efficient demolding of wax cores and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202423039162.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Traditional wax core molding molds are prone to damaging the wax core during demolding, and have low production efficiency, making it difficult to achieve stable and efficient demolding operations.
The mold design employs a combination of cylinders, guide frames, and an air supply mechanism. Air pressure assists in the demolding of the wax core, the guide frame buffers the impact force, and an electric push rod controls the coordination between the exhaust port and the vent hole to achieve stable ejection of the wax core.
It improves the stability and efficiency of wax core demolding, reduces the risk of wax core damage, and enhances production efficiency and product quality.
Smart Images
Figure CN223506175U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of molding die technology, and in particular relates to a molding die for automotive parts that facilitates the demolding of wax cores. Background Technology
[0002] In the precision and demanding field of automotive parts manufacturing, wax cores, as prototypes or supporting structures for key components, play an irreplaceable role in various manufacturing processes such as casting and injection molding. The molding accuracy and surface quality of wax cores directly affect the performance and service life of the final automotive parts. Therefore, developing a molding die that is both efficient and stable, while ensuring easy demolding of wax cores, is of profound significance for improving production efficiency, reducing manufacturing costs, and guaranteeing product quality.
[0003] Currently, most mainstream wax core molding molds on the market rely on traditional mechanical or manual demolding mechanisms. These molds typically consist of an upper mold, a lower mold, and a power unit that drives the upper mold to lift and lower. During the wax injection stage, liquid wax is precisely injected into the cavity formed between the upper and lower molds. After the wax core cools and solidifies, the upper mold is lifted mechanically or manually to separate the wax core from it. The wax core is then manually removed from the lower mold.
[0004] However, this traditional mold design has revealed many limitations in practical applications:
[0005] First, because the wax core and the mold cavity are often tightly fitted, when the upper mold separates from the lower mold, the upper mold can easily lift the wax core. Similarly, when the wax core needs to be removed from the lower mold, it needs to be removed slowly by hand. If it is removed directly and forcibly, the shape of the wax core can be damaged, which will affect the production efficiency of the wax core.
[0006] Therefore, it is essential to invent a molding die for automotive parts that facilitates the demolding of wax cores. Utility Model Content
[0007] The purpose of this invention is to provide a molding die for automotive parts that facilitates the demolding of wax cores, thereby solving the problems mentioned in the background art.
[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0009] This utility model relates to a molding die for automotive parts that facilitates wax core demolding. It includes a base, a lower die, guide frames, an upper die, a top plate, a cylinder, and an air supply mechanism. The lower die and the air supply mechanism are bolted to the upper side of the base. Several guide frames are fixed to the upper edge of the lower die. The upper die is located above the lower die, and the lower and upper dies have identical internal structures and are symmetrically arranged. Guide frames slide through the interior of the upper die, and the top plate is bolted to the upper end of each guide frame. A cylinder is bolted to the upper side of the top plate, and the cylinder's output end is bolted to the upper die. The output end of the air supply mechanism is connected to both the lower and upper dies.
[0010] Furthermore, the lower mold includes a mounting frame, a sliding block, an electric push rod, an exhaust port, a connecting pipe, a shaping block, a shaping groove, a vent hole, and an air guide pipe. The mounting frame is fixed to the upper side of the base with bolts, and the shaping block is fixed to the upper side of the mounting frame with bolts. A sliding block is slidably installed between the mounting frame and the shaping block, and the side of the sliding block is fixed to the output end of the electric push rod with bolts. The base of the electric push rod is fixed to the mounting frame with bolts. An air guide pipe is opened inside the sliding block, and one end of the air guide pipe is fixed to the connecting pipe, while the other end of the connecting pipe is fixed to the output end of the air supply mechanism. Several exhaust ports are opened on the upper side of the sliding block, and all exhaust ports are connected to the air guide pipe. A shaping groove is opened on the upper side of the shaping block, and several vent holes are opened through the interior of the shaping block, and the vent holes are corresponding to the exhaust ports. A guide frame is fixed on the upper side of the shaping block. This arrangement, in cooperation with the air supply mechanism, allows the wax core to be ejected inside the shaping groove.
[0011] Furthermore, the guide frame includes a limiting post, a spring, a lifting plate, and an expansion slot. The expansion slot is formed on the upper side of the lower mold, and the limiting post is fixed inside the expansion slot. A spring is movably arranged on the outer side of the limiting post, and a lifting plate is fixed to the upper end of the spring. The lifting plate is slidably connected to the limiting post, and the diameter of the lifting plate is smaller than the diameter of the expansion slot. The limiting post slides through the upper mold, and the upper end of the limiting post is fixed to the top plate by bolts. This arrangement facilitates the cooperation between the upper mold and the lower mold.
[0012] Furthermore, the air supply mechanism includes an air pump, a first valve body, and a second valve body. The air pump is fixed to the base by bolts, and the output end of the air pump is connected to the first valve body and the second valve body respectively through an air supply pipe. The other end of the first valve body is connected to the lower mold through an air supply pipe; the other end of the second valve body is connected to the upper mold through an air supply pipe. This arrangement enables air supply to both the lower and upper molds.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] In use, this invention allows wax oil to be injected between the upper and lower molds, causing the wax core to form inside the shaping groove. When the upper mold moves upward, an electric push rod inside the upper mold aligns the corresponding vent with the ventilation hole, and an air supply mechanism supplies air to the upper mold, thus moving the wax core upward during the upward movement. When the wax core needs to be removed from the lower mold, an electric push rod inside the lower mold aligns the corresponding vent with the ventilation hole, ejecting the wax core from the lower mold. Furthermore, the guide frame restricts the movement direction of the upper mold, facilitating the connection between the upper and lower molds. When the upper mold approaches the lower mold, the guide frame cushions the impact force on the upper mold. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the structure of the sliding block of this utility model.
[0018] Figure 3 This is a cross-sectional structural diagram of the sliding block of this utility model.
[0019] Figure 4 This is a structural schematic diagram of the guide frame of this utility model.
[0020] Figure 5 This is a schematic diagram of the gas supply mechanism of this utility model.
[0021] In the picture:
[0022] 1-Base, 2-Lower mold, 21-Mounting bracket, 22-Sliding block, 23-Electric push rod, 24-Exhaust port, 25-Connecting pipe, 26-Shaping block, 27-Shaping groove, 28-Ventilation hole, 29-Air guide pipe, 3-Guide frame, 31-Limiting post, 32-Spring, 33-Lifting plate, 34-Expansion groove, 4-Upper mold, 5-Top plate, 6-Cylinder, 7-Air supply mechanism, 71-Air pump, 72-First valve body, 73-Second valve body. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Please see Figures 1 to 5 As shown, this utility model is a molding die for automotive parts that facilitates wax core demolding. It includes a base 1, a lower mold 2, a guide frame 3, an upper mold 4, a top plate 5, a cylinder 6, and an air supply mechanism 7. The lower mold 2 and the air supply mechanism 7 are fixed to the upper side of the base 1 by bolts. Several guide frames 3 are fixed to the upper edge of the lower mold 2. The upper mold 4 is provided on the upper side of the lower mold 2. The lower mold 2 and the upper mold 4 have the same internal structure and are symmetrically arranged. The guide frames 3 slide through the interior of the upper mold 4. The upper end of the guide frame 3 is fixed to the top plate 5 by bolts. The cylinder 6 is fixed to the upper side of the top plate 5 by bolts. The output end of the cylinder 6 is fixed to the upper mold 4 by bolts. The output end of the air supply mechanism 7 is connected to the lower mold 2 and the upper mold 4.
[0026] Specifically, the lower mold 2 includes a mounting frame 21, a sliding block 22, an electric push rod 23, an exhaust port 24, a connecting pipe 25, a shaping block 26, a shaping groove 27, a vent 28, and an air guide pipe 29. The mounting frame 21 is fixed to the upper side of the base 1 by bolts, and the shaping block 26 is fixed to the upper side of the mounting frame 21 by bolts. The sliding block 22 is slidably installed between the mounting frame 21 and the shaping block 26, and the side of the sliding block 22 is fixed to the output end of the electric push rod 23 by bolts. The base of the electric push rod 23 is fixed to the mounting frame 21 by bolts. An air guide pipe 29 is provided inside the sliding block 22, one end of which is fixed to the connecting pipe 25, and the other end of which is fixed to the output end of the air supply mechanism 7. Several exhaust ports 24 are provided on the upper side of the sliding block 22, and all exhaust ports 24 are connected to the air guide pipe 29. A shaping groove 27 is provided on the upper side of the shaping block 26. The molding block 26 has several ventilation holes 28 that are opened through its interior, and these ventilation holes 28 are corresponding to the exhaust ports 24. A guide frame 3 is fixed on the upper side of the molding block 26. The molding groove 27 has the same shape as the automotive parts. When in use, the wax core is formed inside the molding groove 27. Before waxing, the electric push rod 23 can drive the sliding block 22 to slide between the mounting frame 21 and the molding block 26, so that the exhaust ports 24 and ventilation holes 28 are staggered. After the wax core is formed, when it needs to be removed from the molding groove 27, the electric push rod 23 can drive the sliding block 22 to reset, so that the exhaust ports 24 and ventilation holes 28 are corresponding. Then, through the cooperation of the connecting pipe 25, the air guide pipe 29 and the exhaust port 24, the gas discharged by the air supply mechanism 7 is delivered to the ventilation holes 28, and the air pressure inside the ventilation holes 28 pushes the wax core out of the molding groove 27.
[0027] Specifically, the guide frame 3 includes a limiting post 31, a spring 32, a lifting plate 33, and an expansion groove 34. The expansion groove 34 is opened on the upper side of the lower mold 2, and the limiting post 31 is fixed inside the expansion groove 34. The spring 32 is movably arranged on the outer side of the limiting post 31, and the lifting plate 33 is fixed at the upper end of the spring 32. The lifting plate 33 is slidably connected to the limiting post 31, and the diameter of the lifting plate 33 is smaller than the diameter of the expansion groove 34. The limiting post 31 slides through the upper mold 4, and the upper end of the limiting post 31 is fixed to the top plate 5 by bolts. In use, the limiting post 31 can restrict the movement direction of the upper mold 4, so as to facilitate the combination of the upper mold 4 and the lower mold 2. When the upper mold 4 approaches the lower mold 2, the upper mold 4 will first squeeze the lifting plate 33 and the spring 32 until the lifting plate 33 and the spring 32 move into the expansion groove 34. Then, through the cooperation of the spring 32 and the lifting plate 33, the impact force of the upper mold 4 is buffered.
[0028] Specifically, the air supply mechanism 7 includes an air pump 71, a first valve body 72, and a second valve body 73. The air pump 71 is fixed to the base 1 by bolts. The output end of the air pump 71 is connected to the first valve body 72 and the second valve body 73 respectively through an air supply pipe. The other end of the first valve body 72 is connected to the lower mold 2 through an air supply pipe. The other end of the second valve body 73 is connected to the upper mold 4 through an air supply pipe. When in use, the corresponding first valve body 72 and second valve body 73 can be opened, and air can be supplied to the lower mold 2 and the upper mold 4 through the air pump 71.
[0029] Please see Figure 1-5 As shown, this utility model is a molding die for automotive parts that facilitates the demolding of wax cores. Its working principle is as follows: When in use, the cylinder 6 first moves the upper mold 4 downward, so that the upper mold 4 and the lower mold 2 are combined. Then, wax is injected into the shaping groove 27 between the upper mold 4 and the lower mold 2, so that the wax conforms to the shape of the corresponding automotive part. After the wax core is formed, the cylinder 6 moves the upper mold 4 upward. At the same time, the air supply mechanism 7 supplies air to the upper mold 4 to prevent the upper mold 4 from lifting the wax core. Then, the air supply mechanism 7 supplies air to the lower mold 2, so that the wax core is separated from the lower mold 2.
[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A molding die for automotive parts that facilitates wax core demolding, comprising a base (1), a lower mold (2), a guide frame (3), an upper mold (4), a top plate (5), a cylinder (6), and an air supply mechanism (7), characterized in that: The base (1) is fixed with a lower mold (2) and an air supply mechanism (7) on its upper side. Several guide frames (3) are fixed at the upper edge of the lower mold (2). An upper mold (4) is provided on the upper side of the lower mold (2). The lower mold (2) and the upper mold (4) have the same internal structure and are symmetrically arranged. The guide frame (3) slides through the interior of the upper mold (4). A top plate (5) is fixed at the upper end of the guide frame (3). A cylinder (6) is fixed on the upper side of the top plate (5). The output end of the cylinder (6) is fixed to the upper mold (4). The output end of the air supply mechanism (7) is connected to the lower mold (2) and the upper mold (4) respectively.
2. The molding die for automotive parts as described in claim 1, which facilitates wax core demolding, is characterized in that: The lower mold (2) includes a mounting frame (21), a sliding block (22), an electric push rod (23), an exhaust port (24), a connecting pipe (25), a shaping block (26), a shaping groove (27), a vent hole (28), and an air guide pipe (29). The mounting frame (21) is fixed to the upper side of the base (1), wherein the shaping block (26) is fixed to the upper side of the mounting frame (21); a sliding block (22) is slidably installed between the mounting frame (21) and the shaping block (26), wherein the side of the sliding block (22) is fixed to the output end of the electric push rod (23), and the base of the electric push rod (23) is fixed to the mounting frame (21); the sliding block (22) is fixed to the upper side of the base (1), wherein the lower mold (24) includes a mounting frame (25), a sliding block (26), a sliding groove (27), a vent hole (28), and an air guide pipe (29). The moving block (22) has an air guide pipe (29) inside, one end of which is fixed to the connecting pipe (25), and the other end of which is fixed to the output end of the air supply mechanism (7); the upper side of the sliding block (22) has several exhaust ports (24), all of which are connected to the air guide pipe (29); the upper side of the shaping block (26) has a shaping groove (27), and the interior of the shaping block (26) has several ventilation holes (28), which are corresponding to the exhaust ports (24); the upper side of the shaping block (26) is fixed with a guide frame (3).
3. The molding die for automotive parts as described in claim 1, which facilitates wax core demolding, is characterized in that: The guide frame (3) includes a limiting post (31), a spring (32), a lifting plate (33), and an expansion groove (34). The expansion groove (34) is opened on the upper side of the lower mold (2), and the limiting post (31) is fixed inside the expansion groove (34). The spring (32) is movably arranged on the outer side of the limiting post (31), and the lifting plate (33) is fixed at the upper end of the spring (32). The lifting plate (33) is slidably connected to the limiting post (31), and the diameter of the lifting plate (33) is smaller than the diameter of the expansion groove (34). The limiting post (31) slides through the upper mold (4), and the upper end of the limiting post (31) is fixed to the top plate (5).
4. A molding die for automotive parts that facilitates wax core demolding as described in claim 2, characterized in that: The gas supply mechanism (7) includes an air pump (71), a first valve body (72), and a second valve body (73). The air pump (71) is fixed on the base (1). The output end of the air pump (71) is connected to the first valve body (72) and the second valve body (73) respectively through an air supply pipe. The other end of the first valve body (72) is connected to the lower mold (2) through an air supply pipe. The other end of the second valve body (73) is connected to the upper mold (4) through an air supply pipe.