Steering wheel foaming mold capable of forming two parts at one time

Abstract

The utility model aims to provide a steering wheel one-to-two foaming mould, which comprises a forming component and two demoulding ejector rods, the forming component comprises a lower mould and an upper mould, the lower mould is provided with two mutually independent lower half grooves and two core seats, and the two core seats are respectively positioned in the centers of the two lower half grooves. The upper die is provided with two independent upper half grooves, the center of each upper half groove is provided with a receding groove, the inner bottom wall of each receding groove is provided with a pressing column, the upper die is further provided with a feeding groove, the feeding groove is communicated with the two upper half grooves, and when the upper die and the lower die are buckled, the pressing columns are arranged on the pressing columns. The two upper half grooves and the two lower half grooves define two independent closed cavities respectively, the two metal frames are tightly pressed by the two pressing columns and the two core bases respectively so that the two metal frames can be located in the middles of the two closed cavities respectively, and the two demolding ejector rods are arranged on the two core bases in a sliding mode respectively. And the end parts of the two demolding ejector rods respectively extend out of the top surfaces of the two core seats.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming moulds, in particular to a one-outlet-two foaming mould for a steering wheel. Background Art

[0002] A foaming mold is a tool used to manufacture foam products. These molds are commonly used in the production of packaging materials, insulation materials, toys, automotive interior parts, etc. Common foaming molds are mainly made of metal (aluminum, steel).

[0003] At present, automobile steering wheels are almost all made of foaming molds. Specifically, Figure 4 The metal frame 21 shown is placed in a foaming mold to integrally form a foaming outer layer 22 on the outer periphery of the metal frame 21 . The steering wheel thus manufactured has a reliable and stable structure and is convenient for users to hold.

[0004] However, the current steering wheel foaming molds in the industry are basically single-cavity structures, which means that a single mold closing can only produce a single steering wheel, which is too inefficient. Therefore, in order to improve the production efficiency of steering wheels and effectively reduce manufacturing costs, the present application proposes a steering wheel double-cavity foaming mold. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a steering wheel one-outlet two-foaming mold which can form two foam steering wheels each time the mold is closed, so as to improve production efficiency and reduce manufacturing costs.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A steering wheel one-outlet two-outlet foaming mold, comprising:

[0008] A molding assembly, wherein the molding assembly includes a lower mold and an upper mold, the lower mold is provided with two independent lower half grooves, the lower mold is provided with two core seats, and the two core seats are respectively located in the centers of the two lower half grooves, the upper mold is provided with two independent upper half grooves, the centers of the two upper half grooves are provided with an air avoidance groove, the inner bottom wall of each air avoidance groove is provided with a pressure column, the upper mold is also provided with a feed groove, and the feed grooves are respectively connected with the two upper half grooves, when the upper mold and the lower mold are buckled together, the two upper half grooves are respectively surrounded by the two lower half grooves to form two independent closed cavities, and the two pressure columns and the two core seats respectively press the two metal frames, so that the two metal frames are respectively located in the middle of the two closed cavities; and

[0009] Two demoulding ejector rods are respectively slidably arranged on the two core seats, and the ends of the two demoulding ejector rods respectively extend from the top surfaces of the two core seats, and the two demoulding ejector rods are used to push the two metal frames respectively.

[0010] Optionally, the upper mold is provided with a dividing block, a dividing trough is provided on the dividing block, and the dividing trough is connected to the feed trough; the lower mold is provided with an injection block, and the injection block is provided with an injection hole; when the upper mold and the lower mold are engaged, the dividing block and the injection block are engaged, and the injection hole is connected to the dividing trough.

[0011] Optionally, the lower mold and the injection block are both provided with sealing strips, and when the upper mold and the lower mold are buckled together, the sealing strips are distributed adjacent to the feed trough and the distribution trough.

[0012] Optionally, a plurality of pressure columns are provided, and intervals are provided between each pressure column.

[0013] Optionally, one of the lower mold and the upper mold is provided with a plurality of guide posts, and the other is provided with a plurality of guide holes. When the upper mold and the lower mold are buckled together, the guide posts are respectively inserted into the guide holes.

[0014] Optionally, the end of the guide column away from the lower mold is configured as a frustum structure.

[0015] Optionally, the lower mold is further provided with a plurality of positioning recesses, each of which is provided with a positioning groove, and the upper mold is provided with a plurality of positioning protrusions. When the upper mold and the lower mold are buckled together, each of the positioning protrusions is accommodated in each of the positioning grooves one by one.

[0016] Optionally, a locking block is rotatably provided on the outer side wall of the lower mold, and the locking block is used to engage with the upper mold.

[0017] Optionally, a clamping rod is provided on the outer side wall of the upper mold, and a clamping groove is provided on the locking block. When the clamping rod is accommodated in the clamping groove, the locking block and the clamping rod are clamped together.

[0018] Optionally, there are two locking blocks, which are respectively located on the two outer walls of the lower mold that are distributed opposite to each other. There are two clamping rods, which are located on the two outer walls of the upper mold that are distributed opposite to each other. The two locking blocks are used to clamp with the two clamping rods respectively.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] The present invention provides a steering wheel mold with two molds, comprising a molding assembly and two ejector pins. The molding assembly comprises a lower mold and an upper mold. The lower mold has two independent lower half-slots, the lower mold is provided with two core holders, and the two core holders are respectively located at the centers of the two lower half-slots. The upper mold has two independent upper half-slots, each of which has an air-avoidance groove at its center. The inner bottom wall of each air-avoidance groove is provided with a pressure column. The upper mold also has a feed groove, which is connected to the two upper half-slots. When the upper mold and the lower mold are engaged, the two upper half-slots and the two lower half-slots respectively form two independent closed cavities. The two pressure columns and the two core holders respectively press two metal frames so that the two metal frames are respectively located in the middle of the two closed cavities. Two ejector pins are slidably provided on the two core holders, and the ends of the two ejector pins extend from the top surfaces of the two core holders. The two ejector pins are used to push the two metal frames out of the mold. In this way, when material is injected into the closed cavity, a foamed outer layer is formed on the outer wall of the metal frame. Two steering wheels can be formed by opening and closing the mold once, effectively improving production efficiency and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural schematic diagram of a steering wheel one-outlet two-foaming mold according to one embodiment of the present invention;

[0023] Figure 2 for Figure 1 The schematic structural diagram of the steering wheel one-outlet two-outlet foaming mold from another angle is shown;

[0024] Figure 3 This is a schematic structural diagram of an upper mold according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of a metal frame and a foam outer layer according to one embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 21. Metal frame; 22. Foam outer layer; 10. Steering wheel one-outlet two-outlet foaming mold; 100. Molding component; 200. Demolding ejector pin; 110. Lower mold; 120. Upper mold; 111. Lower half groove; 130. Core seat; 121. Upper half groove; 122. Air avoidance groove; 140. Pressure column; 123. Feed chute; 150. Distribution block; 151. Distribution chute; 160. Injection block; 161. Injection hole; 170. Sealing strip; 180. Guide column; 124. Guide hole; 190. Positioning concave block; 191. Positioning groove; 1100. Positioning protrusion; 1210. Locking block; 1220. Clamping rod; 1211. Clamping groove. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0032] like Figures 1 to 3As shown, a steering wheel one-out two foaming mold 10 includes a molding component 100 and two demoulding ejector pins 200. The molding component 100 includes a lower mold 110 and an upper mold 120. The lower mold 110 has two independent lower half grooves 111. The lower mold 110 is provided with two core seats 130, and the two core seats 130 are respectively located at the centers of the two lower half grooves 111. The upper mold 120 has two independent upper half grooves 121. The centers of the two upper half grooves 121 are each provided with an air avoidance groove 122. The inner bottom wall of each air avoidance groove 122 is provided with a pressure column 140. The upper mold 120 also has a feed trough. 123, the feed trough 123 is connected to the two upper half troughs 121 respectively. When the upper mold 120 and the lower mold 110 are buckled together, the two upper half troughs 121 and the two lower half troughs 111 respectively form two independent closed cavities, and the two pressure columns 140 and the two core seats 130 respectively press the two metal frames 21 so that the two metal frames 21 are respectively located in the middle of the two closed cavities, and the two demoulding ejector pins 200 are respectively slidably set on the two core seats 130, and the ends of the two demoulding ejector pins 200 respectively extend from the top surfaces of the two core seats 130, and the two demoulding ejector pins 200 are used to push the two metal frames 21 respectively.

[0033] It should be noted that two core seats 130 are provided on the lower mold 110 at intervals. For example, the core seats 130 are fixed to the lower mold 110 by bolts. A lower half groove 111 is provided on the lower mold 110, surrounding each of the two core seats 130. Correspondingly, two upper half grooves 121 are provided on the upper mold 120 at equal intervals, wherein the distance between the two upper half grooves 121 is equal to the distance between the two lower half grooves 111. A clearance groove 122 is provided at the center of each upper half groove 121 to prevent the core seats 130 from being airtight. Furthermore, a feed groove 123 is provided on the upper mold 120, and the feed groove 123 is connected to the two upper half grooves 121. In this way, after the upper mold 120 and the lower mold 110 are interlocked, the upper half groove 121 and the lower half groove 111 interlock to form a closed cavity. The pressure column 140 of each air-avoiding groove 122 and the corresponding core seat 130 jointly clamp the metal frame 21, ensuring that the metal frame 21 is in the center of the closed cavity and is suspended in the air. In this way, when the material is injected into the closed cavity, the foam outer layer 22 is formed on the outer wall of the metal frame 21. Two steering wheels can be formed in a single mold opening and closing, effectively improving production efficiency and reducing manufacturing costs.

[0034] like Figures 1 to 3 As shown, in one embodiment, the upper mold 120 is provided with a dividing block 150, a dividing groove 151 is opened on the dividing block 150, and the dividing groove 151 is communicated with the feed groove 123, and the lower mold 110 is provided with an injection block 160, and the injection block 160 is opened with an injection hole 161. When the upper mold 120 and the lower mold 110 are buckled together, the dividing block 150 and the injection block 160 are buckled together, and the injection hole 161 is communicated with the dividing groove 151.

[0035] It should be noted that by installing the dividing block 150 and the injection block 160 on the upper mold 120 and the lower mold 110 respectively, when the upper mold 120 and the lower mold 110 are closed, the material can be injected through the injection hole 161, and the material enters the two independent closed cavities along the dividing trough 151 and the feeding trough 123 in turn to form the steering wheel.

[0036] like Figure 2 As shown, in one embodiment, the lower mold 110 and the injection block 160 are both provided with a sealing strip 170 . When the upper mold 120 and the lower mold 110 are buckled together, the sealing strip 170 is distributed adjacent to the feed slot 123 and the distribution slot 151 .

[0037] It should be noted that when the mold is closed, the feed trough 123 and the distribution trough 151 are sealed by the lower mold 110 and the injection block 160 respectively. In order to avoid gaps between the upper mold 120 and the lower mold 110, and between the distribution block 150 and the injection block 160 when the mold is closed, a sealing strip 170 is set on the lower mold 110 and the injection block 160 to prevent the material from overflowing from the gap when injected into the closed cavity.

[0038] like Figure 3 As shown, in one embodiment, a plurality of pressure columns 140 are provided, with spaces provided between each pressure column 140. Thus, within each air-avoiding groove 122, multiple pressure columns 140 are provided to simultaneously compress the same metal frame 21, ensuring that the metal frame 21 is reliably and stably fixed in the center of the sealed cavity, thereby improving the molding quality of the steering wheel.

[0039] like Figure 2 and Figure 3 As shown, in one embodiment, one of the lower mold 110 and the upper mold 120 is provided with a plurality of guide posts 180, and the other is provided with a plurality of guide holes 124. When the upper mold 120 and the lower mold 110 are engaged, each guide post 180 is passed through each guide hole 124 in a one-to-one correspondence.

[0040] It should be noted that in order to ensure accurate mating of the upper mold 120 and the lower mold 110, guide posts 180 are installed in one of the lower mold 110 and the upper mold 120, and guide holes 124 are provided in the other. For example, when each guide post 180 is installed in the lower mold 110, multiple guide holes 124 are provided in the upper mold 120; and when each guide post 180 is installed in the upper mold 120, multiple guide holes 124 are provided in the lower mold 110. For ease of description, this application illustrates an embodiment in which the guide posts 180 are installed in the lower mold 110 and the guide holes 124 are provided in the upper mold 120. In this way, when the upper mold 120 and the lower mold 110 are mated, each guide post 180 passes through each guide hole 124 to provide guidance, ensuring accurate mating of the upper mold 120 and the lower mold 110.

[0041] like Figure 2 As shown, in one embodiment, the end of the guide post 180 away from the lower mold 110 is configured as a frustum structure. In this way, the frustum structure ensures that the guide post 180 is accurately inserted into the guide hole 124, thereby improving the guiding effect.

[0042] like Figure 2 and Figure 3 As shown, in one embodiment, the lower mold 110 is further provided with a plurality of positioning recesses 190, each positioning recess 190 is provided with a positioning groove 191, and the upper mold 120 is provided with a plurality of positioning protrusions 1100. When the upper mold 120 and the lower mold 110 are buckled together, each positioning protrusion 1100 is accommodated in each positioning groove 191 one by one.

[0043] It should be noted that since the side surfaces where the upper mold 120 and the lower mold 110 are close to each other are provided with precision fitting structures, in order to ensure that the upper mold 120 and the lower mold 110 are accurately fitted together, the upper mold 120 and the lower mold 110 are accurately fitted together through the cooperation of the positioning protrusion 1100 and the positioning groove 191.

[0044] like Figures 1 to 3 As shown, in one embodiment, a locking block 1210 is rotatably provided on the outer side wall of the lower mold 110 , and the locking block 1210 is used to engage with the upper mold 120 .

[0045] It should be noted that when the mold is not in production, in order to prevent the upper mold 120 and the lower mold 110 from accidentally separating, a locking block 1210 is provided to securely fasten and fix the upper mold 120 and the lower mold 110.

[0046] like Figures 1 to 3 As shown, in one embodiment, a latch rod 1220 is provided on the outer side wall of the upper mold 120 , and a latch groove 1211 is provided on the locking block 1210 . When the latch rod 1220 is accommodated in the latch groove 1211 , the locking block 1210 and the latch rod 1220 are latched together.

[0047] It should be noted that the clamping rod 1220 is screwed and installed on the outer wall of the upper mold 120. The locking block 1210 is rotated to align the slot 1211 with the clamping rod 1220, and then the clamping rod 1220 is screwed and fixed on the upper mold 120, so that the clamping rod 1220 clamps the slot 1211, so that the upper mold 120 and the lower mold 110 are reliably fastened and fixed.

[0048] In one embodiment, two locking blocks 1210 are provided, one located on each of two opposing outer walls of the lower mold 110. Two latching rods 1220 are provided, one located on each of two opposing outer walls of the upper mold 120. The two locking blocks 1210 are used to engage with the two latching rods 1220. In this way, the ends of the upper mold 120 are respectively engaged with the ends of the lower mold 110, ensuring a secure fastening and fixation between the upper mold 120 and the lower mold 110.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in the present invention can be understood to include but not be limited to locking and fixing with screws / screws and welding. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the utility model patent shall be based on the attached claims.

Claims

1. A steering wheel one-outlet two-foaming mold, characterized in that: include: A molding assembly, wherein the molding assembly includes a lower mold and an upper mold, the lower mold is provided with two independent lower half grooves, the lower mold is provided with two core seats, and the two core seats are respectively located in the centers of the two lower half grooves, the upper mold is provided with two independent upper half grooves, the centers of the two upper half grooves are provided with an air avoidance groove, the inner bottom wall of each air avoidance groove is provided with a pressure column, the upper mold is also provided with a feed groove, and the feed grooves are respectively connected with the two upper half grooves, when the upper mold and the lower mold are buckled together, the two upper half grooves are respectively surrounded by the two lower half grooves to form two independent closed cavities, and the two pressure columns and the two core seats respectively press the two metal frames, so that the two metal frames are respectively located in the middle of the two closed cavities; and Two demoulding ejector rods are respectively slidably arranged on the two core seats, and the ends of the two demoulding ejector rods respectively extend from the top surfaces of the two core seats, and the two demoulding ejector rods are used to push the two metal frames respectively.

2. The steering wheel one-outlet two-foaming mold according to claim 1, characterized in that: The upper mold is provided with a dividing block, a dividing trough is opened on the dividing block, and the dividing trough is communicated with the feed trough. The lower mold is provided with an injection block, and an injection hole is opened on the injection block. When the upper mold and the lower mold are buckled together, the dividing block and the injection block are buckled together, and the injection hole is communicated with the dividing trough.

3. The steering wheel one-outlet two-outlet foaming mold according to claim 2, characterized in that: The lower mold and the injection block are both provided with sealing strips. When the upper mold and the lower mold are buckled together, the sealing strips are distributed adjacent to the feed trough and the distribution trough.

4. The steering wheel one-outlet two-foaming mold according to claim 1, characterized in that: There are a plurality of pressure columns, and intervals are set between the pressure columns.

5. The steering wheel one-outlet two-outlet foaming mold according to claim 1, characterized in that: One of the lower die and the upper die is provided with a plurality of guide posts, and the other is provided with a plurality of guide holes. When the upper die and the lower die are buckled together, the guide posts are respectively inserted into the guide holes.

6. The steering wheel one-outlet two-foaming mold according to claim 5, characterized in that: The end of the guide column away from the lower mold is configured as a frustum structure.

7. The steering wheel one-outlet two-outlet foaming mold according to claim 1, characterized in that: The lower mold is also provided with a plurality of positioning concave blocks, each of which is provided with a positioning groove, and the upper mold is provided with a plurality of positioning protrusions. When the upper mold and the lower mold are buckled together, the positioning protrusions are accommodated in the positioning grooves one by one.

8. The steering wheel one-outlet two-foaming mold according to claim 1, characterized in that: A locking block is rotatably provided on the outer side wall of the lower die, and the locking block is used for clamping with the upper die.

9. The steering wheel one-outlet two-outlet foaming mold according to claim 8, characterized in that: A clamping rod is provided on the outer side wall of the upper mold, and a clamping groove is provided on the locking block. When the clamping rod is accommodated in the clamping groove, the locking block and the clamping rod are clamped together.

10. The steering wheel one-outlet two-outlet foaming mold according to claim 9, characterized in that: There are two locking blocks, which are respectively located on the two outer side walls of the lower mold that are distributed opposite to each other. There are two clamping rods, which are located on the two outer side walls of the upper mold that are distributed opposite to each other. The two locking blocks are used to clamp with the two clamping rods respectively.

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