In-die forming device

Abstract

Provided in the present invention is an in-die forming device, comprising a first die assembly and a second die assembly which are movable relative to each other; the first die assembly comprises a first die base, a first forming assembly and a first stamping assembly, wherein the first stamping assembly is arranged around the first forming assembly, and the first forming assembly is provided with a recess structure recessed in the direction towards the first die base; and the second die assembly comprises a second die base, a second forming assembly and a second stamping assembly, wherein the second stamping assembly is arranged around the second forming assembly, and the second forming assembly is provided with a protrusion structure adapted to the recess structure.

Description

In-mold forming device

[0001] Cross-reference to related applications

[0002] This application claims priority to the Chinese patent application No. 202411365094.2, filed on September 27, 2024, and entitled “In-mold forming device”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of molds, and in particular to an in-mold forming device. BACKGROUND

[0004] In the technical field of molds, traditional mold production processes often rely on the assembly of multiple components, especially the combination of pre-formed parts through riveting, welding or other connection methods. Although this production method meets the basic manufacturing needs to some extent, its inherent defects are increasingly prominent.

[0005] Firstly, the separate manufacturing and subsequent assembly process of multiple components greatly increases the production cost, as each component requires independent mold design, material preparation and processing procedures, resulting in high overall production costs. Secondly, the complex production process requires more mold development and maintenance, leading to a significant increase in the number of molds, further increasing the difficulty and cost of mold management. Furthermore, the multi-step assembly process not only is inefficient, but also is prone to errors, such as incomplete alignment between components, insufficient fastening force, etc., thereby affecting the overall quality and appearance of the product. SUMMARY

[0006] The present application provides an in-mold forming device, comprising: a first mold assembly and a second mold assembly that can move relative to each other; the first mold assembly comprises a first mold base, a first forming assembly connected to the first mold base, and a first stamping assembly arranged around the first forming assembly, the first forming assembly has a recessed groove structure recessed towards the first mold base; the second mold assembly comprises a second mold base, a second forming assembly connected to the second mold base, and a second stamping assembly arranged around the second forming assembly, the second forming assembly is provided with a protruding structure corresponding to the recessed groove structure.

[0007] In an implementation, the first molding assembly comprises a first inner molding member and a first outer molding member arranged around the first inner molding member, the first inner molding member comprises a first molding surface facing the second molding assembly; the first molding surface is inwardly recessed to form a first recess; the first outer molding member is provided with an annular recessed portion on a side close to the first inner molding member, the annular recessed portion and the first molding surface jointly form a second recess coaxial with the first recess; and the first recess and the second recess jointly form a recess structure. The second molding assembly comprises a second inner molding member and a second outer molding member arranged around the second inner molding member; the second inner molding member comprises a second molding surface matched with the first molding surface, the second molding surface is provided with a first protrusion matched with the first recess, and a second protrusion protruding relative to the second outer molding member and matched with the second recess; and the first protrusion and the second protrusion jointly form a protrusion structure.

[0008] In an implementation, further comprising an elastic assembly configured to be demolded, the elastic assembly comprises: a first elastic member arranged between the first die seat and the first molding assembly; a second elastic member arranged between the second die seat and the second molding assembly; and a third elastic member arranged between the first die seat and the first stamping assembly, or arranged between the second die seat and the second stamping assembly.

[0009] In an implementation, the second stamping assembly comprises a stamping side facing the first stamping assembly, the stamping side comprises a first end close to the second molding assembly and a second end away from the second molding assembly, and in the moving direction of the first molding assembly, a plane where the first end is located is higher than a plane where the second end is located.

[0010] In an implementation, the stamping side is provided with a third recess recessed towards the second die seat at a position close to the second end, and a bottom surface of the third recess is coplanar with the second end.

[0011] In an implementation, the stamping side is further provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are distributed at intervals along the circumference of the stamping side.

[0012] In an implementation, the first molding assembly further comprises a first boundary member surrounding the first stamping assembly; the second molding assembly further comprises a second boundary member arranged around the second stamping assembly; and the first boundary member and the second boundary member abut to form a stamping boundary and a stamping region located within the stamping boundary.

[0013] In an implementation, further comprising a fourth elastic member arranged between the first boundary member and the first die seat, or arranged between the second boundary member and the second die seat.

[0014] In an implementation, the first molding assembly further comprises a first positioning structure, the second molding assembly further comprises a second positioning structure, one of the first positioning structure and the second positioning structure is a guide column, the other is a guide sleeve, and the guide column is slidingly arranged relative to the guide sleeve. Attached Figure Description

[0015] Figure 1 is a perspective view of an in-mold forming apparatus according to an embodiment of the present invention;

[0016] Figure 2 is an exploded view of the in-mold forming device shown in Figure 1;

[0017] Figure 3 is a cross-sectional view of Figure 1;

[0018] Figure 4 is a cross-sectional view of Figure 1 from another angle;

[0019] Figure 5 is a schematic diagram of the in-mold forming device in the demolding state;

[0020] Figure 6 is an exploded cross-sectional view of the first molding component and the second molding component in Figure 4;

[0021] Figure 7 is a schematic diagram of Figure 6 from another angle;

[0022] Figure 8 is a 3D view of the upper casing of the fan light;

[0023] Figure 9 is a perspective view of the second stamping assembly;

[0024] Figure 10 is a perspective view of the first stamping assembly.

[0025] Explanation of reference numerals in the attached drawings: In-mold forming device 100, first mold assembly 200, first mold base 210, first pad 220, first clamping plate 230, stop plate 240, first stamping assembly 250, third elastic element 2510, extrusion side 2520, first boundary element 260, first forming assembly 270, first inner forming element 2710, first forming surface 2711, first outer forming element 2720, annular recess 2721, groove structure 2730, first groove 2731, second groove 2732, first elastic element 2740, first positioning structure 280, first support plate 290, second mold assembly 300, second stamping assembly 310, stamping side 3110, first End 3111, second end 3112, third groove 3113, reinforcing rib 3114, second pad 320, second mold base 330, second boundary member 340, fourth elastic member 3410, second molding component 350, second inner molding member 3510, second molding surface 3511, second limiting part 3512, second outer molding member 3520, second elastic member 3521, first limiting part 3522, protruding structure 3530, first protrusion 3531, second protrusion 3532, top block 3540, second positioning structure 360, pad foot 370, second support plate 380, fan light upper shell 400, central area 410, fan blade mounting area 420. Detailed Implementation

[0026] In order to make the objects, technical solutions and advantages of the present application clearer, the following will describe the present application in detail with reference to the accompanying drawings and specific embodiments.

[0027] It should be noted that, in order not to obscure the present application with unnecessary details, only the structures and / or processing steps closely related to the solutions of the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0028] In addition, it should also be noted that the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0029] Please refer to Figs. 1-10, which show an in-mold forming device 100 of an embodiment of the present application, which can stamp and form two structures that need to be separated into one, without subsequent assembly steps, thereby improving production efficiency and reducing production cost.

[0030] The following description will take the in-mold forming device 100 applied to an integrated stamping fan lamp upper shell 400 as an example, but not limited thereto.

[0031] Please refer to Fig. 1, the in-mold forming device 100 includes a first mold assembly 200 and a second mold assembly 300 which can move relative to each other. Since the first mold assembly 200 can move relative to the second mold assembly 300, the stamping process can be quickly and continuously performed, thereby improving production efficiency.

[0032] In the present embodiment, the first mold assembly 200 is an upper mold assembly, and the second mold assembly 300 is a lower mold assembly. The second mold assembly 300 is arranged directly below the first mold assembly 200, and the second mold assembly 300 is fixed, while the first mold assembly 200 can reciprocate vertically relative to the second mold assembly 300, so that the first mold assembly 200 and the second mold assembly 300 can stamp the material.

[0033] In other embodiments, the first mold assembly 200 and the second mold assembly 300 can also be arranged left and right, so that one of the first mold assembly 200 and the second mold assembly 300 is fixed, and the other reciprocates relative thereto to stamp the material.

[0034] Please refer to Figs. 2-3, the first mold assembly 200 includes a first mold base 210, a first backing plate 220, a first clamping plate 230 and a first stamping assembly 250 arranged in layers from top to bottom. Among them, the first mold base 210, the first backing plate 220 and the first clamping plate 230 are fixed by pins (not shown) and screws (not shown).

[0035] In the embodiment, the first stamping assembly 250 is further provided with a stop plate 240, and the stop plate 240 is fixedly connected with the first stamping assembly 250. In other embodiments, the stop plate 240 and the first stamping assembly 250 can be integrally provided. The first stamping assembly 250 is movably connected with the first die base 210 through a movable screw (not shown). That is, the first stamping assembly 250 can move relative to the first die base 210.

[0036] The first clamp plate 230 is provided below with a first boundary piece 260. The first boundary piece 260 is fixedly connected with the first clamp plate 230, and the first boundary piece 260 is arranged around the first stamping assembly 250.

[0037] The first die assembly 200 comprises a first forming assembly 270 connected with the first die base 210. The first forming assembly 270 is arranged below the first backing plate 220, and the first stamping assembly 250 is arranged around the first forming assembly 270.

[0038] The first forming assembly 270 comprises a first inner forming piece 2710 and a first outer forming piece 2720. The first outer forming piece 2720 is arranged around the first inner forming piece 2710. The first inner forming piece 2710 is movably connected with the first outer forming piece 2720 through a movable screw.

[0039] Please refer to FIGS. 4-5, the first die assembly 200 further comprises a first elastic piece 2740 and a third elastic piece 2510 configured for demolding.

[0040] The first elastic piece 2740 is arranged between the first die base 210 and the first forming assembly 270. In the embodiment, the first elastic piece 2740 is arranged between the first inner forming piece 2710 and the first die base 210, so that the first inner forming piece 2710 can move in the vertical direction relative to the first outer forming piece 2720, that is, the first inner forming piece 2710 is elastically connected with the first die base 210 through the first elastic piece 2740. In the process of stamping and forming the fan lamp upper shell 400, the first inner forming piece 2710 moves in the direction of the first die base 210 under the action of the first elastic piece 2740. After the stamping and forming of the fan lamp upper shell 400 is completed, when demolding starts, the first elastic piece 2740 can restore its original shape, thereby pushing the first inner forming piece 2710 to move in the direction of the first die base 210, realizing automatic demolding. This function reduces manual intervention, improves production efficiency and automation degree.

[0041] In other embodiments, the first elastic member 2740 can also be arranged between the first outer forming member 2720 and the first die seat 210, so that the first outer forming member 2720 can move in the vertical direction relative to the first inner forming member 2710, at this time, the first inner forming member 2710 is fixedly connected with the first die seat 210. During the stamping forming process of the fan lamp upper shell 400, the first outer forming member 2720 moves in the direction of the first die seat 210 under the action of the first elastic member 2740. By arranging the first elastic member 2740 between the first outer forming member 2720 and the first die seat 210, another form of automatic demolding mechanism is realized, so that the in-mold forming device 100 is more flexible and variable, and the user can select the most suitable demolding mode according to the specific product shape and production requirements.

[0042] In the present embodiment, the third elastic member 2510 is arranged between the first die seat 210 and the first stamping assembly 250, so that the first stamping assembly 250 can move in the vertical direction relative to the first die seat 210 under the action of the third elastic member 2510. In other embodiments, the third elastic member 2510 can also be correspondingly arranged in the second mold assembly 300, that is, the third elastic member 2510 is arranged between the second die seat 330 and the second stamping assembly 310, so that the second stamping assembly 310 moves in the vertical direction relative to the second die seat 330 under the action of the third elastic member 2510.

[0043] It should be noted that all movable screws used in the present embodiment are used to limit the displacement distance of the corresponding movable parts.

[0044] Referring to FIGS. 2-3, the second mold assembly 300 includes a second stamping assembly 310, a second backing plate 320 and a second die seat 330 arranged in a stack from top to bottom. Among them, the second stamping assembly 310 and the second backing plate 320 are fixedly connected with the second die seat 330.

[0045] The second mold assembly 300 includes a second boundary member 340. The second boundary member 340 is arranged around the second stamping assembly 310 and the second backing plate 320, and the position of the second boundary member 340 corresponds to that of the first boundary member 260. The side of the second boundary member 340 facing the second stamping assembly 310 is flush with the side of the first boundary member 260 facing the first stamping assembly 250.

[0046] The second mold assembly 300 further includes a second forming assembly 350. The second forming assembly 350 is arranged on the side of the second die seat 330 facing the first mold assembly 200, and the second stamping assembly 310 is arranged around the second forming assembly 350.

[0047] The second forming assembly 350 comprises a second inner forming piece 3510 and a second outer forming piece 3520. The second inner forming piece 3510 is fixedly connected with the second die seat 330, and the second outer forming piece 3520 is arranged around the second inner forming piece 3510.

[0048] Referring to FIGS. 3-4, the second die assembly 300 further comprises a second elastic piece 3521 and a fourth elastic piece 3410.

[0049] The second elastic piece 3521 is arranged between the second die seat 330 and the second forming assembly 350. In this embodiment, the second elastic piece 3521 is arranged between the second outer forming piece 3520 and the second die seat 330, so that the second outer forming piece 3520 can move in the vertical direction relative to the second inner forming piece 3510, that is, the second outer forming piece 3520 is elastically connected with the second die seat 330 through the second elastic piece 3521. During the stamping forming process of the fan lamp upper shell 400, the second outer forming piece 3520 moves towards the second die seat 330 under the action of the second elastic piece 3521. After the stamping forming is completed, the second outer forming piece 3520 is reset under the action of the second elastic piece 3521. A first limiting portion 3522 is arranged on the side of the second outer forming piece 3520 facing the second inner forming piece 3510, and the second inner forming piece 3510 is correspondingly provided with a second limiting portion 3512. When the second outer forming piece 3520 is reset, the first limiting portion 3522 abuts against the second limiting portion 3512 to limit the displacement of the second outer forming piece 3520.

[0050] In other embodiments, the second elastic piece 3521 can also be arranged between the second inner forming piece 3510 and the second die seat 330, so that the second inner forming piece 3510 can move in the vertical direction relative to the second outer forming piece 3520. At this time, the second outer forming piece 3520 is fixedly connected with the second die seat 330. During the stamping forming process of the fan lamp upper shell 400, the second inner forming piece 3510 moves towards the second die seat 330 under the action of the second elastic piece 3521.

[0051] In this embodiment, the fourth elastic piece 3410 is arranged between the second die seat 330 and the second boundary piece 340, so that the second boundary piece 340 can move in the vertical direction relative to the second die seat 330. In other embodiments, the fourth elastic piece 3410 can also be arranged between the first die seat 210 and the first boundary piece 260, so that the first boundary piece 260 can move in the vertical direction relative to the first die seat 210.

[0052] Further, please refer to FIG. 5 and FIG. 7, the second forming assembly 350 further comprises a top block 3540. The top block 3540 is arranged on the side of the second inner forming part 3510 facing the first mold assembly 200 and is movably connected with the second inner forming part 3510. Correspondingly, a fifth elastic member (not numbered) is arranged below the top block 3540. During demolding, the top block 3540 can move upward along the vertical direction relative to the second inner forming part 3510, so that the fan lamp upper shell 400 is demolded from the second mold assembly 300. In the embodiment, the top block 3540 is an independent structure, which cooperates with the fifth elastic member to make the demolding effect better. In other embodiments, the top block 3540 can be integrally arranged with the second inner forming part 3510.

[0053] When the first mold assembly 200 and the second mold assembly 300 cooperate to stamp the fan lamp upper shell 400, the first stamping assembly 250, the first forming assembly 270, the second stamping assembly 310 and the second forming assembly 350 cooperate to finally stamp and form the fan lamp upper shell 400.

[0054] Specifically, please refer to FIG. 8, the fan lamp upper shell 400 comprises a central region 410 and a fan blade mounting region 420 surrounding the central region 410. Please refer to FIG. 6 and FIG. 7, the first forming assembly 270 is provided with a groove structure 2730 recessed towards the first mold base 210. The second forming assembly 350 is provided with a protruding structure 3530 matched with the groove structure 2730. The groove structure 2730 and the protruding structure 3530 are combined to stamp and form the central region 410. The precise matching of the groove structure 2730 and the protruding structure 3530 ensures the accurate forming of the material in the central region 410 during stamping, reduces the error in the forming process, and improves the shape consistency of the fan lamp upper shell 400. The first stamping assembly 250 and the second stamping assembly 310 are combined to stamp and form the fan blade mounting region 420. The fan blade mounting region 420 needs higher precision and strength to support the fan blades and ensure their stable operation. Through the combined stamping of the first stamping assembly 250 and the second stamping assembly 310, the accurate size and shape of the fan blade mounting region 420 can be ensured.

[0055] Further, the first boundary member 260 and the second boundary member 340 abut each other to form a stamping boundary for stamping the fan lamp upper shell 400 and a stamping region within the stamping boundary. The abutment of the first boundary member 260 and the second boundary member 340 accurately defines the stamping boundary of the fan lamp upper shell 400, ensuring that the stamped fan lamp upper shell 400 has accurate size and shape. The first stamping assembly 250 and the second stamping assembly 310 are arranged within the stamping region, which can directly apply pressure to the material to achieve effective stamping and forming, ensuring that the stamping force is concentrated in the stamping region, avoiding force dispersion and waste, and improving the stamping effect.

[0056] The recess structure 2730 comprises a first recess 2731 and a second recess 2732. The first recess 2731 is formed by recessing the first inner forming part 2710 inwardly towards the first forming surface 2711 of the second mold assembly 300. The first outer forming part 2720 is provided with an annular recess 2721 near one side of the first inner forming part 2710, and the annular recess 2721 and the first forming surface 2711 are connected to jointly form the second recess 2732 coaxial with the first recess 2731. The first recess 2731 and the second recess 2732 jointly form the recess structure 2730. By precisely machining the first recess 2731 and the second recess 2732, the forming precision of the fan lamp upper shell 400 at the corresponding position can be ensured.

[0057] The protrusion structure 3530 comprises a first protrusion 3531 and a second protrusion 3532. The second inner forming part 3510 comprises a second forming surface 3511 opposite to the first forming surface 2711, the second forming surface 3511 is provided with the first protrusion 3531 matched with the first recess 2731, and the second protrusion 3532 protrudes relative to the second outer forming part 3520 and is matched with the second recess 2732. The first protrusion 3531 and the second protrusion 3532 jointly form the protrusion structure 3530. The matching design of the first protrusion 3531 and the first recess 2731, and the matching design of the second protrusion 3532 and the second recess 2732, ensure the precise matching and positioning between the first mold assembly 200 and the second mold assembly 300, reduce errors and deviations caused by improper matching, and improve the dimensional accuracy and shape consistency of the fan lamp upper shell 400.

[0058] When the fan lamp upper shell 400 is punched and formed, the first protrusion 3531 abuts against the first recess 2731, and the second protrusion 3532 abuts against the second recess 2732. As the first mold assembly 200 descends, the first inner forming part 2710 approaches the first mold base 210, and the second outer forming part 3520 approaches the second mold base 330, gradually punching and forming the fan lamp upper shell 400.

[0059] Please refer to FIG. 9, the second stamping assembly 310 is formed with a stamping side 3110 facing the first mold assembly 200. The stamping side 3110 includes a first end 3111 close to the second forming assembly 350 and a second end 3112 away from the second forming assembly 350. In the moving direction of the first mold assembly 200, the plane where the first end 3111 is located is higher than the plane where the second end 3112 is located, so that the stamping side 3110 is equivalent to a relatively convex structure, which to some extent helps to guide the flow of material during stamping, so that the material can fill the corners of the stamping area more smoothly, reducing the generation of defects such as bubbles and wrinkles. Correspondingly, please refer to FIG. 10, the first stamping assembly 250 is formed with a relatively concave extrusion side 2520 facing the stamping side 3110, which further promotes the uniform distribution and compaction of the material. The stamping side 3110 and the extrusion side 2520 are close to each other to form the fan mounting area 420 during stamping, and the stamping side 3110 and the extrusion side 2520 interact with each other during stamping, tightly combined, enhancing the strength of the finally formed fan lamp upper shell 400 and improving the durability and stability of the fan lamp upper shell 400.

[0060] The stamping side 3110 is provided with a third groove 3113 circumferentially distributed at the position close to the second end 3112. The third groove 3113 is recessed towards the second mold base 330. The bottom surface of the third groove 3113 is coplanar with the second end 3112. In this embodiment, the third groove 3113 is used to fix the fan blade.

[0061] Further, the stamping side 3110 includes a connecting surface (not shown) connecting the first end 3111 and the second end 3112, and a plurality of reinforcing ribs 3114 are arranged on the connecting surface and spaced apart along the circumference of the stamping side 3110. In fact, the reinforcing rib 3114 is a groove structure recessed towards the second mold base 330 relative to the connecting surface, and the groove has a height difference with the connecting surface. The reinforcing rib 3114 can reinforce the strength of the fan mounting area 420 and prevent the fan lamp upper shell 400 formed by stamping from deforming due to external force.

[0062] The first mold assembly 200 comprises a first positioning structure 280, and the second mold assembly 300 comprises a second positioning structure 360. One of the first positioning structure 280 and the second positioning structure 360 is a guide column, and the other is a guide sleeve. The guide column is arranged in sliding connection with the guide sleeve, so that the first mold assembly 200 and the second mold assembly 300 move relatively. The cooperation of the guide column and the guide sleeve can ensure that the first mold assembly 200 and the second mold assembly 300 are accurately positioned and guided during relative movement, which helps to reduce the deviation of the first mold assembly 200 and the second mold assembly 300 when the mold is closed. At the same time, the sliding cooperation structure of the guide column and the guide sleeve provides stable support and guidance for the first mold assembly 200 and the second mold assembly 300, so that the in-mold forming device 100 can resist the deviation and shaking caused by material deformation or impact force during stamping. This helps to improve the stability and reliability of the in-mold forming device 100 and reduce the risk of damage to the in-mold forming device 100.

[0063] In the embodiment, the first positioning structure 280 is a guide column, and the second positioning structure is a guide sleeve. The first positioning structure 280 is fixedly connected with the first mold base 210, and the second positioning structure 360 is fixedly connected with the second mold base 330. The first positioning structure 280 and the second positioning structure 360 are arranged between the first mold base 210 and the second mold base 330.

[0064] In the embodiment, when the first mold assembly 200 and the second mold assembly 300 start to stamp the fan lamp upper shell 400, the first positioning structure 280 and the second positioning structure 360 first contact and guide each other. When the first mold assembly 200 moves towards the second mold assembly 300, the first positioning structure 280 moves in the second positioning structure 360.

[0065] In the embodiment, the in-mold forming device 100 can further comprise a first supporting plate 290 arranged above the first mold base 210 and a second supporting plate 380 arranged below the second mold base 330. The second supporting plate 380 is fixedly installed on the installation surface. The arrangement of the first supporting plate 290 and the second supporting plate 380 can make the in-mold forming device 100 bear a larger weight and ensure the stability of the in-mold forming device 100 during work. It can be understood that the first supporting plate 290, the foot pad 370 and the second supporting plate 380 are not necessary, so at least one of the first supporting plate 290, the foot pad 370 and the second supporting plate 380 can be omitted in other embodiments.

[0066] The working process of the in-mold forming device 100 of the embodiment of the application will be described in detail below.

[0067] When the first mold assembly 200 and the second mold assembly 300 are closed, the second mold assembly 300 remains stationary, the first positioning structure 280 and the second positioning structure 360 first contact, and the first positioning structure 280 moves in the direction of the second mold assembly 300 in the second positioning structure 360, thereby driving the entire first mold assembly 200 to move towards the second mold assembly 300. The first boundary piece 260 and the second boundary piece 340 abut, and at the same time, the first forming assembly 270 and the second forming assembly 350 abut synchronously. The first elastic piece 2740 and the third elastic piece 2510 start to contract, the first inner forming piece 2710 moves towards the first mold base 210 under the action of the first elastic piece 2740, and the first stamping assembly 250 moves towards the first mold base 210 under the action of the third elastic piece 2510. The second elastic piece 3521 and the fourth elastic piece 3410 start to contract, the second outer forming piece 3520 moves towards the second mold base 330 under the action of the second elastic piece 3521, and the second boundary piece 340 moves towards the second mold base 330 under the action of the fourth elastic piece 3410.

[0068] When the first mold assembly 200 continues to move downward, the groove structure 2730 and the protruding structure 3530 are extruded and matched with each other, the first stamping assembly 250 and the second stamping assembly 310 are extruded and matched with each other, so that the fan lamp upper shell 400 is slowly formed downward along the second stamping assembly 310 and the second forming assembly 350, and the material of the fan lamp upper shell 400 flows uniformly along the gap between the first stamping assembly 250 and the second stamping assembly 310 through the pressure of the first mold assembly 200 on the material, and finally the fan lamp upper shell 400 is formed.

[0069] When the forming is completed, please refer to FIG. 5, the first mold assembly 200 and the second mold assembly 300 are opened at the same time, the second outer forming piece 3520 resets under the action of the second elastic piece 3521, and pushes the fan lamp upper shell 400 away from the second mold assembly 300.

[0070] In summary, the in-mold forming device 100 of the present application places the fan lamp upper shell 400 material in the stamping area formed by the first boundary member 260 and the second boundary member 340, and uses the first forming assembly 270 and the second forming assembly 350 in combination to stamp the central area 410 of the fan lamp upper shell 400, and uses the first stamping assembly 250 and the second stamping assembly 310 in combination to stamp the fan blade mounting area 420 of the fan lamp upper shell 400. The in-mold forming device 100 of the present application does not rely on manual operation, and can integrally stamp the fan lamp upper shell 400 without turning over, reducing the waiting time and errors that may occur in the traditional multi-step processing or assembly process. The in-mold forming device 100 can complete the entire forming of the fan lamp upper shell 400 in one operation cycle, greatly improving the production efficiency. Due to the reduction of production steps and required equipment, and possibly reduced manual operation, the in-mold forming device 100 effectively reduces production costs.

[0071] The above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An in-mold forming apparatus comprising: The first die assembly (200) and the second die assembly (300) are relatively movable; The first die assembly (200) comprises a first die seat (210), a first forming assembly (270) connected with the first die seat (210), and a first stamping assembly (250) arranged around the first forming assembly (270), wherein the first forming assembly (270) is provided with a groove structure (2730) recessed towards the first die seat (210); The second die assembly (300) comprises a second die seat (330), a second forming assembly (350) connected with the second die seat (330), and a second stamping assembly (310) arranged around the second forming assembly (350), wherein the second forming assembly (350) is provided with a protruding structure (3530) matched with the groove structure (2730).

2. The in-mold forming apparatus according to claim 1, wherein, The first forming assembly (270) comprises a first inner forming part (2710) and a first outer forming part (2720) arranged around the first inner forming part (2710), wherein the first inner forming part (2710) comprises a first forming surface (2711) facing the second die assembly (300); the first forming surface (2711) is recessed inwardly to form a first groove (2731); the first outer forming part (2720) is provided with an annular recess (2721) on a side close to the first inner forming part (2710), and the annular recess (2721) and the first forming surface (2711) are connected to jointly form a second groove (2732) coaxial with the first groove (2731); and the first groove (2731) and the second groove (2732) jointly form the groove structure (2730).

3. The in-mold forming apparatus according to claim 2, wherein The second forming assembly (350) comprises a second inner forming part (3510) and a second outer forming part (3520) arranged around the second inner forming part (3510), wherein the second inner forming part (3510) comprises a second forming surface (3511) matched with the first forming surface (2711), the second forming surface (3511) is provided with a first protrusion (3531) matched with the first groove (2731), and a second protrusion (3532) protruding relative to the second outer forming part (3520) and matched with the second groove (2732); and the first protrusion (3531) and the second protrusion (3532) jointly form the protruding structure (3530).

4. The in-mold forming apparatus according to claim 1, wherein, The elastic assembly configured to be demolded comprises: a first elastic member (2740) arranged between the first die seat (210) and the first forming assembly (270); a second elastic member (3521) arranged between the second die seat (330) and the second forming assembly (350); and a third elastic member (3541) arranged between the second forming assembly (350) and the second stamping assembly (310). A third elastic member (2510) is arranged between the first die holder (210) and the first stamping assembly (250), or between the second die holder (330) and the second stamping assembly (310).

5. The in-mold forming apparatus of claim 1, wherein: The second stamping assembly (310) comprises a stamping side (3110) facing the first stamping assembly (250), and the stamping side (3110) comprises a first end (3111) close to the second forming assembly (350) and a second end (3112) away from the second forming assembly (350), and in the moving direction of the first die assembly (200), the plane where the first end (3111) is located is higher than the plane where the second end (3112) is located.

6. The in-mold forming apparatus according to claim 5, wherein The stamping side (3110) is provided with a third groove (3113) recessed towards the second die holder (330) at a position close to the second end (3112), and the bottom surface of the third groove (3113) is coplanar with the second end (3112).

7. The in-mold forming apparatus according to claim 5, wherein The stamping side (3110) is also provided with a plurality of reinforcing ribs (3114) distributed along the circumference of the stamping side (3110).

8. The in-mold forming apparatus of claim 1, wherein, The first die assembly (200) further comprises a first boundary member (260) surrounding the first stamping assembly (250), and the second die assembly further comprises a second boundary member (340) arranged around the second stamping assembly (310), and the first boundary member (260) and the second boundary member (340) abut to form a stamping boundary and a stamping area within the stamping boundary.

9. The in-mold forming apparatus of claim 8, wherein, A fourth elastic member (3410) is further arranged between the first boundary member (260) and the first die holder (210), or between the second boundary member (340) and the second die holder (330).

10. The in-mold forming apparatus according to any one of claims 1 to 9, wherein The first die assembly (200) further comprises a first positioning structure (280), and the second die assembly (300) further comprises a second positioning structure (360), one of the first positioning structure (280) and the second positioning structure (360) is a guide column, and the other is a guide sleeve, and the guide column is arranged in sliding connection with the guide sleeve.

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