Inner and outer multilayer composite powder forming device

Abstract

The utility model belongs to the technical field of powder forming, and particularly relates to an inner and outer multilayer composite powder forming device which comprises a stamping mechanism, a forming middle die and a powder feeding mechanism, the forming middle die is arranged at the output end of the stamping mechanism, and a first forming cavity, a second forming cavity and a third forming cavity are formed in the forming middle die; the powder feeding mechanism is arranged on the forming middle mold and provided with two output ends, and the two output ends of the powder feeding mechanism are used for filling the first forming cavity and the second forming cavity with powder of the corresponding types correspondingly. The number of the output ends of the stamping mechanism is three, the output ends of the three stamping mechanisms can extend into the first forming cavity, the second forming cavity and the third forming cavity correspondingly, independent forming of different types of powder can be achieved in the single-time stamping forming process, and embedding assembly of different formed workpieces can also be achieved; and the forming efficiency of the powder forming machine is effectively improved, and the enterprise productivity is improved.

Description

Technical Field

[0001] This utility model belongs to the field of powder forming technology, and in particular relates to a device for forming multi-layer composite powder with internal and external layers. Background Technology

[0002] Current powder forming technology primarily focuses on forming the part itself, failing to effectively address the subsequent assembly of the workpiece. Many powder-formed parts still require further processing and assembly after forming, such as the precise nesting and installation of different materials. These operations are typically performed manually, resulting in tedious and inefficient processes.

[0003] Current powder forming equipment primarily focuses on powder processing and shaping, lacking solutions for subsequent workpiece connection and assembly. While some research has attempted to achieve surface bonding by adding materials such as silica gel to the powder, this method cannot achieve precise nesting installation, and its applicability to the bonding of different materials remains unclear. The lack of effective automated assembly technology limits the overall efficiency of the powder forming process, while manual operation is prone to errors, affecting product accuracy and reliability. Utility Model Content

[0004] The purpose of this invention is to provide an internal and external multi-layer composite powder forming device, which aims to solve the technical problem that the existing powder forming process lacks effective automated assembly technology in the workpiece fitting and assembly process after powder forming, thus limiting the overall efficiency of the powder forming process.

[0005] To achieve the above objectives, this utility model provides an internal and external multi-layer composite powder forming device, including a stamping mechanism, a forming die, and a powder feeding mechanism. The forming die is disposed at the output end of the stamping mechanism and has a first forming cavity, a second forming cavity, and a third forming cavity. The powder feeding mechanism is disposed on the forming die and has two sets of output ends, which are respectively used to fill the first forming cavity and the second forming cavity with powder of the corresponding type. The stamping mechanism has three sets of output ends, which can extend into the first forming cavity, the second forming cavity, and the third forming cavity, respectively. During the movement, the two sets of output ends of the powder feeding mechanism fill the corresponding first forming cavity and the second forming cavity with powder and push the formed workpiece into the third forming cavity.

[0006] Optionally, the stamping mechanism includes a mounting frame, an upper die, and a lower die. The mounting frame is a square frame structure. The upper die and the lower die are respectively located at the top and bottom of the mounting frame. The forming die is located in the middle of the mounting frame and between the output ends of the upper die and the lower die. The output ends of the upper die and the lower die can move along the length of the mounting frame and enter the corresponding first forming cavity, second forming cavity, and third forming cavity.

[0007] Optionally, the molding die is configured as a plate-like structure, and the first molding cavity, the second molding cavity, and the third molding cavity are configured as a hole-like structure. The first molding cavity, the second molding cavity, and the third molding cavity are distributed at intervals along the same straight path. The upper die and the lower die each have three sets of output ends, and the three sets of output ends of the upper die and the lower die are respectively aligned with the first molding cavity, the second molding cavity, and the third molding cavity.

[0008] Optionally, the powder feeding mechanism includes two sets of powder filling components. Both sets of powder filling components are disposed on the forming die. The two sets of powder filling components are symmetrically arranged with the third forming cavity as the center. The output end movement paths of the two sets of powder filling components are collinear and coincide with the distribution paths of the first forming cavity, the second forming cavity, and the third forming cavity. The two sets of powder filling components fill the first forming cavity and the second forming cavity with powder of the corresponding type, respectively. The two sets of powder filling components can push the workpiece formed by the stamping mechanism in the first forming cavity and the second forming cavity into the third forming cavity.

[0009] Optionally, the powder filling component includes a movable material box, a guide rail, and a pushing component. The guide rail is disposed on the molding die and has a guide groove. The movable material box is slidably connected in the guide groove. The length direction of the guide groove is the same as the distribution path of the first molding cavity, the second molding cavity, and the third molding cavity. The pushing component is disposed at the end of the movable material box facing the third molding cavity.

[0010] Optionally, the movable material box has a lid-like structure that fits into the guide groove. The output end of the movable material box faces downward, and the input end of the movable material box is connected to the output end of an external powder supply device through a pipe. The pushing component is a push plate structure that extends into the guide groove. During the movement of the movable material box, the pushing component moves along the guide groove. The lower mold can push the molded workpiece in the first molding cavity and the second molding cavity into the guide groove, so that the pushing component can contact the workpiece and push the workpiece to move.

[0011] Optionally, the pushing assembly includes two sets of L-shaped folding plates symmetrically arranged at both ends of the moving material box along the moving path of the moving material box. The ends of the L-shaped folding plates extend to one side of the moving material box, and a clamping groove for clamping and limiting the forming workpiece is formed between the ends of the two sets of L-shaped folding plates.

[0012] Optionally, the forming die has three sets of circular holes along a preset path, and the lower die includes three sets of mandrels and punches. All the mandrels are fixed in the circular holes one by one. The punches are in the form of rings and are slidably sleeved on the corresponding mandrels. The inner wall of the circular hole, the outer wall of the mandrel, and the end of the punch at the corresponding positions form the first forming cavity, the second forming cavity, and the third forming cavity, respectively.

[0013] Optionally, it also includes a dust removal mechanism, which is disposed on the molding die and located on one side of the third molding cavity. The output end of the dust removal mechanism can move through the third molding cavity and remove excess powder inside or near the third molding cavity.

[0014] Optionally, the dust removal mechanism is a vacuum adsorption box structure that is inverted on the molding die.

[0015] The above-mentioned technical solutions of one or more of the internal and external multilayer composite powder forming devices provided in this utility model embodiment have at least one of the following technical effects: the two sets of output ends of the powder feeding mechanism respectively fill the first forming cavity and the second forming cavity with powder; the output end of the stamping mechanism extrudes the powder in the first forming cavity and the second forming cavity into a preset workpiece; the output end of the stamping mechanism resets and lifts the formed workpiece in the forming cavity to the outside of the forming cavity and stops it on the end face of the forming die; the two sets of output ends of the powder feeding mechanism fill the powder a second time and push the formed workpiece located on the end face of the forming die to the third forming cavity, so that the two sets of formed workpieces stack up. The powder is stacked in the third forming cavity, and the stamping mechanism closes the mold, causing the powder in the first and second forming cavities to be formed. At the same time, the two sets of formed workpieces in the third cavity are fitted and assembled. Compared with the existing powder forming process, which lacks effective automated assembly technology in the workpiece fitting and assembly process after powder forming, thus limiting the overall efficiency of the powder forming process, the powder forming machine provided by this utility model can realize the individual forming of different types of powder and the fitting and assembly of different formed workpieces in a single stamping process, effectively improving the forming efficiency of the powder forming machine and increasing the production capacity of enterprises. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 This is a schematic diagram of the internal and external multilayer composite powder forming device provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the multi-layer composite powder forming device after disassembly of the upper mold.

[0019] Figure 3 A side view of the internal and external multilayer composite powder forming device provided in an embodiment of this utility model.

[0020] Figure 4 A cross-sectional view of the internal and external multilayer composite powder forming device provided in an embodiment of this utility model.

[0021] Figures 5-11 A schematic diagram of the powder compression molding process of the internal and external multilayer composite powder molding device provided in the embodiments of this utility model.

[0022] The following are the labeling elements in the figure:

[0023] 100—Stamping mechanism; 200—Forming die; 300—Powder feeding mechanism

[0024] 210—First molding cavity; 220—Second molding cavity; 230—Third molding cavity

[0025] 110—Installation frame; 120—Upper mold; 130—Lower mold

[0026] 310—Powder filling assembly; 311—Moving material box; 312—Guide track

[0027] 313—Pushing assembly; 314—Guide groove; 315—L-shaped folding plate

[0028] 131—Core rod; 132—Punch; 400—Dust removal mechanism. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-11The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figures 1-11As shown, a multi-layer composite powder forming device is provided, including a stamping mechanism 100, a forming die 200, and a powder feeding mechanism 300. The forming die 200 is disposed at the output end of the stamping mechanism 100, and is provided with a first forming cavity 210, a second forming cavity 220, and a third forming cavity 230. The powder feeding mechanism 300 is disposed on the forming die 200, and is provided with two sets of output ends, which are respectively used to feed powders of corresponding types. The powder is filled into the first forming cavity 210 and the second forming cavity 220; the output ends of the stamping mechanism 100 are three sets, and the output ends of the three sets of stamping mechanism 100 can extend into the first forming cavity 210, the second forming cavity 220 and the third forming cavity 230 respectively. During the movement, the two sets of output ends of the powder feeding mechanism 300 fill the corresponding first forming cavity 210 and second forming cavity 220 with powder, and push the formed workpiece into the third forming cavity 230.

[0034] In this embodiment, the filling powder material in the first molding cavity 210 is iron, and the filling powder material in the second molding cavity 220 is copper. The iron powder and copper powder are both formed into sleeve-shaped shell structures in the first molding cavity 210 and the second molding cavity 220. The inner diameter of the copper sleeve is larger than that of the iron sleeve. In the third molding cavity 230, the iron sleeve can be driven by the output end of the stamping mechanism 100 to fit into the inner ring of the copper sleeve.

[0035] like Figures 5-11As shown, specifically, the two sets of output ends of the powder feeding mechanism 300 fill the first forming cavity 210 and the second forming cavity 220 with powder respectively. The output end of the stamping mechanism 100 extrudes the powder in the first forming cavity 210 and the second forming cavity 220 into a preset workpiece. The output end of the stamping mechanism 100 resets and lifts the formed workpiece in the forming cavity to the outside of the forming cavity and stops it on the end face of the forming die 200. The two sets of output ends of the powder feeding mechanism 300 fill the powder again and push the formed workpiece located on the end face of the forming die 200 towards the third forming cavity 230, so that the two sets of formed workpieces are stacked in the third forming cavity 230. In this process, the stamping mechanism 100 closes the mold, causing the powder in the first forming cavity 210 and the second forming cavity 220 to be formed. At the same time, the two sets of formed workpieces in the third cavity are fitted together and assembled. Compared with the existing powder forming process, which lacks effective automated assembly technology in the workpiece fitting and assembly process after powder forming, thus limiting the overall efficiency of the powder forming process, the powder forming machine provided by this utility model can realize the individual forming of different types of powder and the fitting and assembly of different formed workpieces in a single stamping process, effectively improving the forming efficiency of the powder forming machine and increasing the production capacity of enterprises.

[0036] like Figures 1-4 As shown, in another embodiment of this utility model, the stamping mechanism 100 includes a mounting frame 110, an upper die 120, and a lower die 130. The mounting frame 110 is arranged in a square frame structure. The upper die 120 and the lower die 130 are respectively disposed at the top and bottom ends of the mounting frame 110. The forming die 200 is disposed in the middle of the mounting frame 110 and located between the output ends of the upper die 120 and the lower die 130. The output ends of the upper die 120 and the lower die 130 can move along the length direction of the mounting frame 110 and enter the corresponding first forming cavity 210, second forming cavity 220, and third forming cavity 230. The square frame structure is beneficial to improving the movement stability of the output ends of the upper die 120 and the lower die 130 during operation.

[0037] like Figures 1-4As shown, in another embodiment of this utility model, the molding die 200 is configured as a plate-like structure, and the first molding cavity 210, the second molding cavity 220, and the third molding cavity 230 are configured as a perforated structure. The first molding cavity 210, the second molding cavity 220, and the third molding cavity 230 are distributed at intervals along the same straight path. The upper die 120 and the lower die 130 each have three sets of output ends, and the output ends of the three sets of upper die 120 and lower die 130 are respectively aligned with the first molding cavity 210, the second molding cavity 220, and the third molding cavity 230. The collinear arrangement of the three molding cavities allows the powder feeding path and the material movement path to coincide, reducing the overall structural space ratio and achieving structural optimization.

[0038] like Figures 1-4 As shown, in another embodiment of this utility model, the powder feeding mechanism 300 includes two sets of powder filling components 310. Both sets of powder filling components 310 are disposed on the forming mold 200. The two sets of powder filling components 310 are symmetrically arranged with the third forming cavity 230 as the center. The output end movement paths of the two sets of powder filling components 310 are collinear and coincide with the distribution paths of the first forming cavity 210, the second forming cavity 220 and the third forming cavity 230. The two sets of powder filling components 310 fill the first forming cavity 210 and the second forming cavity 220 with corresponding types of powder. The two sets of powder filling components 310 can push the workpieces processed and formed by the stamping mechanism 100 in the first forming cavity 210 and the second forming cavity 220 into the third forming cavity 230. Two sets of powder filling components 310 are symmetrically arranged. The output end of the powder filling component 310 can move relative to the third forming cavity 230, thereby completing the powder filling and pushing operations in sequence during a single movement, which helps to improve the working efficiency of the powder filling component 310.

[0039] like Figures 1-4 As shown, in another embodiment of this utility model, the powder filling component 310 includes a movable material box 311, a guide rail 312, and a pushing component 313. The guide rail 312 is disposed on the molding die 200, and a guide groove 314 is provided on the guide rail 312. The movable material box 311 is slidably connected in the guide groove 314. The length direction of the guide groove 314 is the same as the distribution path of the first molding cavity 210, the second molding cavity 220, and the third molding cavity 230. The pushing component 313 is disposed at the end of the movable material box 311 facing the third molding cavity 230. The guide groove 314 structure helps to keep the movable material box 311 moving in a straight line during the movement, preventing the movable material box 311 from shifting its position when driving the pushing component 313, thus affecting the movement accuracy of the molded workpiece.

[0040] like Figures 1-4 As shown, in another embodiment of this utility model, the movable material box 311 has a cover-shaped structure that is fastened to the guide groove 314. The output end of the movable material box 311 is set downwards, and the input end of the movable material box 311 is connected to the output end of an external powder supply device through a pipe. The pushing component 313 is a pusher plate structure that extends to the guide groove 314. During the movement of the movable material box 311, the pushing component 313 is driven to move along the guide groove 314. The lower mold 130 can push the molded workpiece in the first molding cavity 210 and the second molding cavity 220 into the guide groove 314, so that the pushing component 313 can abut against the workpiece and push the workpiece to move. In this embodiment, when the output end of the lower mold 130 lifts the molded workpiece to the outside of the first molding cavity 210 and the second molding cavity 220, the output end of the lower mold 130 is flush with the end face of the molding middle mold 200, so that the molded workpiece can move smoothly along the end face of the molding middle mold 200 into the third molding cavity 230.

[0041] like Figures 1-4 As shown, in another embodiment of this utility model, the pushing assembly 313 includes two sets of L-shaped folding plates 315 symmetrically arranged at both ends of the moving material box 311 along the moving path of the moving material box 311. The ends of the L-shaped folding plates 315 extend to one side of the moving material box 311, and a clamping groove 316 for clamping and limiting the forming workpiece is formed between the ends of the two sets of L-shaped folding plates 315. The clamping groove 316 structure clamps and limits the forming workpiece, which helps to prevent the forming workpiece from moving or deviating during the pushing process, thereby affecting the feeding accuracy.

[0042] like Figures 1-4 As shown, in another embodiment of this utility model, the end of the L-shaped folding plate 315 is provided with an inclined structure. The two sets of opposite inclined surfaces enable the clamping groove 316 to be provided with a conical groove structure, thereby adapting to the clamping of forming workpieces of different sizes.

[0043] like Figures 1-4 As shown, in another embodiment of this utility model, the forming die 200 has three sets of circular holes along a preset path, and the lower die 130 includes three sets of mandrels 131 and punches 132. All the mandrels 131 are fixed in the circular holes one by one. The punches 132 have a ring structure and are slidably sleeved on the corresponding mandrels 131. The inner wall of the circular hole, the outer wall of the mandrel 131 and the end of the punch 132 at the corresponding positions form the first forming cavity 210, the second forming cavity 220 and the third forming cavity 230 respectively.

[0044] like Figures 1-4 As shown, in another embodiment of this utility model, a dust removal mechanism 400 is also included. The dust removal mechanism 400 is disposed on the molding die 200 and located on one side of the third molding cavity 230. The output end of the dust removal mechanism 400 can move through the third molding cavity 230 and remove excess powder inside or near the third molding cavity 230.

[0045] In another embodiment of this utility model, the dust removal mechanism 400 is a vacuum adsorption box structure that is inverted on the molding intermediate mold 200.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layer composite powder forming device, characterized in that, include: stamping mechanism; A forming die is provided at the output end of the stamping mechanism, and the forming die is provided with a first forming cavity, a second forming cavity, and a third forming cavity. A powder feeding mechanism is disposed on the molding die. The powder feeding mechanism has two sets of output ends, which are respectively used to fill the first molding cavity and the second molding cavity with powder of the corresponding type. The stamping mechanism has three sets of output ends, which can extend into the first forming cavity, the second forming cavity, and the third forming cavity, respectively. During the movement, the two sets of output ends of the powder feeding mechanism fill the corresponding first forming cavity and second forming cavity with powder, and push the formed workpiece into the third forming cavity.

2. The multi-layer composite powder forming device according to claim 1, characterized in that: The stamping mechanism includes a mounting frame, an upper die, and a lower die. The mounting frame is a square frame structure. The upper die and the lower die are respectively located at the top and bottom of the mounting frame. The forming die is located in the middle of the mounting frame and between the output ends of the upper die and the lower die. The output ends of the upper die and the lower die can move along the length of the mounting frame and enter the corresponding first forming cavity, second forming cavity, and third forming cavity.

3. The multi-layer composite powder forming device according to claim 2, characterized in that: The molding die is arranged in a plate-like structure. The first molding cavity, the second molding cavity, and the third molding cavity are arranged in a hole-like structure. The first molding cavity, the second molding cavity, and the third molding cavity are arranged at intervals along the same straight path. The upper die and the lower die each have three sets of output ends, and the three sets of output ends of the upper die and the lower die are respectively aligned with the first molding cavity, the second molding cavity, and the third molding cavity.

4. The multi-layer composite powder forming device according to claim 3, characterized in that: The powder feeding mechanism includes two sets of powder filling components, both of which are disposed on the forming die. The two sets of powder filling components are symmetrically arranged with the third forming cavity as the center. The output end movement paths of the two sets of powder filling components are collinear and coincide with the distribution paths of the first forming cavity, the second forming cavity, and the third forming cavity. The two sets of powder filling components fill the first forming cavity and the second forming cavity with powder of the corresponding type, respectively. The two sets of powder filling components can push the workpiece formed by the stamping mechanism in the first forming cavity and the second forming cavity into the third forming cavity.

5. The multi-layer composite powder forming device according to claim 4, characterized in that: The powder filling assembly includes a movable material box, a guide rail, and a pushing assembly. The guide rail is disposed on the molding die and has a guide groove. The movable material box is slidably connected in the guide groove. The length direction of the guide groove is the same as the distribution path of the first molding cavity, the second molding cavity, and the third molding cavity. The pushing assembly is disposed at the end of the movable material box facing the third molding cavity.

6. The multi-layer composite powder forming device according to claim 5, characterized in that: The movable material box has a lid-like structure that fits into the guide groove. The output end of the movable material box faces downward. The input end of the movable material box is connected to the output end of an external powder supply device through a pipe. The pushing component is a pusher plate structure that extends into the guide groove. During the movement of the movable material box, the pushing component moves along the guide groove. The lower mold can push the molded workpiece in the first molding cavity and the second molding cavity into the guide groove, so that the pushing component can contact the workpiece and push the workpiece to move.

7. The multi-layer composite powder forming device according to claim 6, characterized in that: The feeding assembly includes two sets of L-shaped folding plates symmetrically arranged at both ends of the moving material box along the moving path of the moving material box. The ends of the L-shaped folding plates extend to one side of the moving material box, and a clamping groove for clamping and limiting the forming workpiece is formed between the ends of the two sets of L-shaped folding plates.

8. The multi-layer composite powder forming device according to claim 2, characterized in that: The forming die has three sets of circular holes along a preset path. The lower die includes three sets of mandrels and punches. All the mandrels are fixed in the circular holes one by one. The punches are in the form of rings. All the punches are slidably sleeved on the corresponding mandrels. The inner wall of the circular hole, the outer wall of the mandrel, and the end of the punch at the corresponding positions form the first forming cavity, the second forming cavity, and the third forming cavity, respectively.

9. The multi-layer composite powder forming device according to claim 1, characterized in that: It also includes a dust removal mechanism, which is disposed on the molding die and located on one side of the third molding cavity. The output end of the dust removal mechanism can move through the third molding cavity and remove excess powder inside or near the third molding cavity.

10. The multi-layer composite powder forming device according to claim 9, characterized in that: The dust removal mechanism is a vacuum adsorption box structure that is inverted on the molding die.

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