Foaming mold auxiliary ejection structure

Abstract

The utility model relates to mould equipment technical field, concretely relates to a foaming mould auxiliary ejection structure, including forming mould base, the both sides in forming mould base are installed with inlay, is provided with the accommodation cavity in forming mould base, the bottom plate is slidably arranged in accommodation cavity, the middle installation of bottom plate has main ejection rod, is set with spring on main ejection rod, the both sides installation of bottom plate has auxiliary ejection rod, the bottom of inlay is set up with installation slot, is installed with auxiliary ejection plate in installation slot, through auxiliary jacking rod and enter into installation slot with auxiliary ejection plate contact and lift inlay, through setting up auxiliary ejection rod, when bottom plate drives main ejection rod and ejects foaming forming work piece, auxiliary ejection rod lifts inlay, is convenient for comprehensive paint spraying, guarantees the quality of product, simple structure.

Description

Technical Field

[0001] This utility model relates to the field of mold equipment technology, and in particular to an auxiliary ejection structure for foaming molds. Background Technology

[0002] As cars become more and more common, OEMs are placing higher and higher demands on the quality of automotive interior and exterior components, and the steering wheel, as an interior component, also has high requirements for appearance.

[0003] The current ejection structure of the steering wheel foam mold is a one-piece ejection system, ejecting only the spline sleeve of the central frame of the steering wheel; other parts are fixed structures and do not participate in the ejection. During the foaming process, the mold needs to be painted. For steering wheel products with a wall height of less than 50mm, the paint inside the mold can basically cover the wall. However, for steering wheel products with a wall height greater than 50mm, the paint inside the mold cannot be completely sprayed to the bottom of the lower protective wall during the foaming operation. This results in defects such as bubbles, pitting, and peeling in the appearance of the products produced by the foam mold, affecting product quality. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose an auxiliary ejection structure for foaming molds to solve the problem of incomplete in-mold paint spraying affecting product quality.

[0005] To achieve the above objectives, this utility model provides an auxiliary ejection structure for a foaming mold, including a molding mold base, inserts installed on both sides of the molding mold base, a receiving cavity provided in the molding mold base, a base plate slidably disposed in the receiving cavity, a main ejection rod installed in the middle of the base plate, a spring sleeved on the main ejection rod, auxiliary ejection rods installed on both sides of the base plate, an installation groove opened at the bottom of the insert, an auxiliary ejection plate installed in the installation groove, and an auxiliary lifting rod extending into the installation groove to contact the auxiliary ejection plate and lift the insert.

[0006] A further improvement is that the main ejector rod extends through the receiving cavity, and the two ends of the spring abut against the bottom plate and the inner wall of the receiving cavity, respectively.

[0007] A further improvement is that the height of the auxiliary ejector rod is lower than the height of the main ejector rod.

[0008] A further improvement is that a limiting mechanism is provided between the auxiliary ejector plate and the auxiliary ejector block. The limiting mechanism includes a limiting rod, which is bolted to the lower side of the auxiliary ejector plate. A limiting block is installed at the lower end of the limiting rod, and a sliding groove is provided inside the auxiliary ejector rod, with the limiting block slidably disposed in the sliding groove.

[0009] A further improvement is that a retaining plate is rotatably installed at the upper opening of the slide groove, and a slot adapted to the limiting block is opened on the retaining plate, so that the limiting block extends into the slide groove by passing through the slot.

[0010] The beneficial effects of this utility model are as follows: By setting an auxiliary ejector rod on the base plate, when the base plate drives the main ejector rod to eject the foamed workpiece, the auxiliary ejector rod assists in lifting the insert, which facilitates comprehensive painting and ensures product quality; the auxiliary ejector rod and the main ejector rod are set with a height difference, which facilitates the sequential lifting of the product and the insert, and facilitates material unloading and painting operations.

[0011] A limiting mechanism is set up so that the auxiliary ejector rod rises along the limit rod guide and ejects the insert, thereby improving the stability of the insert ejection. A limit block is set up so that after the auxiliary ejector rod drives the insert to move down, the auxiliary ejector rod continues to move down and pulls the insert to fit into the molding mold base through the limit block, thereby improving the stability of the insert and facilitating subsequent stable foaming molding. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in this utility model or the prior art, 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the molding mold base structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the molding die base according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the limiting mechanism structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the card plate structure in an embodiment of the present utility model.

[0014] The diagram is marked as follows: 1. Molding mold base; 2. Insert; 3. Receiving cavity; 4. Base plate; 5. Main ejector rod; 6. Spring; 7. Auxiliary ejector rod; 8. Mounting groove; 9. Auxiliary ejector plate; 10. Limiting rod; 11. Limiting block; 12. Slide groove; 13. Clamping plate; 14. Slot. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0016] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] like Figure 1 , Figure 2 As shown, this embodiment provides an auxiliary ejection structure for a foaming mold, including a molding mold base 1, inserts 2 installed on both sides of the molding mold base 1, a receiving cavity 3 provided inside the molding mold base 1, a base plate 4 slidably disposed inside the receiving cavity 3, a main ejector rod 5 installed in the middle of the base plate 4, a spring 6 sleeved on the main ejector rod 5, the main ejector rod 5 extending through the receiving cavity 3, and the two ends of the spring 6 abutting against the base plate 4 and the inner wall of the receiving cavity 3 respectively. The ejector rod of the foaming equipment ejects the base plate 4 inside the foaming mold, causing the base plate 4 to rise within the receiving cavity 3, thereby pushing the main ejector rod 5 upward and ejecting the molded product, which is then reset by the spring 6 after ejection.

[0018] Auxiliary ejector rods 7 are installed on both sides of the base plate 4. The bottom of the insert 2 is provided with an installation groove 8. An auxiliary ejector plate 9 is installed in the installation groove 8. The installation groove 8 is adapted to the auxiliary ejector rod. The molding mold base 1 is provided with an ejector hole corresponding to the insert 2. As the base plate 4 rises, the auxiliary ejector rod extends from the ejector hole into the installation groove 8 and contacts the auxiliary ejector plate 9, lifting the insert 2. This raises the insert 2 to a height that allows the paint inside the mold to be sprayed in place, facilitating comprehensive painting and improving the painting effect.

[0019] like Figure 3 , Figure 4As shown, a limiting mechanism is provided between the auxiliary ejector plate 9 and the auxiliary ejector block. The limiting mechanism includes a limiting rod 10, which is threaded onto the lower side of the auxiliary ejector plate. A limiting block 11 is installed at the lower end of the limiting rod 10. A sliding groove 12 is provided inside the auxiliary ejector rod 7, and the limiting block 11 is slidably disposed in the sliding groove 12. When the base plate 4 rises, the auxiliary ejector rod 7 is stably inserted into the mounting groove 8 along the guide of the limiting rod 10 and lifts the insert 2. After the base plate 4 falls, the insert 2 moves down with the auxiliary ejector rod. After the insert 2 moves and fits against the forming mold base 1, the auxiliary ejector rod 7 continues to move down. After moving to the bottom position, the limiting block 11 moves to the top of the sliding groove 12. The sliding groove 12 pulls the limiting block 11, thereby tightening and fixing the insert 2, so that the insert 2 is stably engaged in the forming mold base 1.

[0020] A retaining plate 13 is rotatably installed at the upper opening of the slide groove 12. The retaining plate 13 has a slot 14 that matches the limiting block 11. The limiting block 11 extends into the slide groove 12 by passing through the slot 14. By rotating the retaining plate 13, the slot 14 and the limiting block 11 are misaligned, so that the limiting block 11 is stably set in the slide groove 12. When disassembling, the retaining plate 13 is rotated so that the slot 14 corresponds to the limiting block 11, so that the limiting block 11 can be disengaged from the slide groove 12.

[0021] In use, the bottom plate 4 of the foaming mold is ejected by the ejector rod of the foaming equipment. The bottom plate 4 drives the main ejector rod 5 to eject, and the main ejector rod 5 ejects the foamed workpiece from the foaming mold. During the ejection of the bottom plate 4, the auxiliary ejector rods 7 on both sides are ejected. The auxiliary ejector rods 7 on both sides eject the insert 2 of the foaming mold to a certain height. After the insert 2 is ejected to a height that can be sprayed with the in-mold paint, the in-mold paint is sprayed. After the in-mold paint is sprayed, the main ejector rod 5 drives the bottom plate 4 to return to its original position through the spring 6. At the same time, the auxiliary ejector rods 7 drive the insert 2 to move and return to its original position, which facilitates the subsequent foaming and molding.

[0022] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foaming mold auxiliary ejection structure, comprising a molding mold base (1), wherein inserts (2) are installed on both sides inside the molding mold base (1), characterized in that, The forming mold base (1) is provided with a receiving cavity (3), and a base plate (4) is slidably provided in the receiving cavity (3). A main ejector rod (5) is installed in the middle of the base plate (4), and a spring (6) is sleeved on the main ejector rod (5). Auxiliary ejector rods (7) are installed on both sides of the base plate (4). An installation groove (8) is opened at the bottom of the insert (2), and an auxiliary ejector plate (9) is installed in the installation groove (8). The auxiliary lifting rod extends into the installation groove (8) and contacts the auxiliary ejector plate (9) to lift the insert (2).

2. The foaming mold auxiliary ejection structure according to claim 1, characterized in that, The main ejector rod (5) extends through the receiving cavity (3), and the two ends of the spring (6) abut against the bottom plate (4) and the inner wall of the receiving cavity (3) respectively.

3. The foaming mold auxiliary ejection structure according to claim 1, characterized in that, The height of the auxiliary ejector rod (7) is lower than the height of the main ejector rod (5).

4. The foaming mold auxiliary ejection structure according to claim 1, characterized in that, A limiting mechanism is provided between the auxiliary ejector plate (9) and the auxiliary ejector block. The limiting mechanism includes a limiting rod (10), which is bolted to the lower side of the auxiliary ejector plate. A limiting block (11) is installed at the lower end of the limiting rod (10). A sliding groove (12) is provided inside the auxiliary ejector rod (7), and the limiting block (11) is slidably disposed in the sliding groove (12).

5. The foaming mold auxiliary ejection structure according to claim 4, characterized in that, A retaining plate (13) is rotatably installed at the upper opening of the slide (12). A slot (14) adapted to the limiting block (11) is provided on the retaining plate (13). The limiting block (11) extends into the slide (12) by passing through the slot (14).

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