Mould stripping structure for inverted buckle of insert
By setting first and second pressing devices in the mold and controlling the movement of the second pressing body with the ejection device, the problem of burrs and flash during mold opening is solved, thus improving the yield of finished products and reducing production costs.
Patent Information
- Application Number
- CN202520099080.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-16
AI Technical Summary
When using existing molds to manufacture products with curved structures, burrs and cracks are easily generated during mold opening, resulting in burrs and flash on the molded products, which affects the yield and increases production costs.
A mold ejection structure with inverted inserts is adopted. By setting first and second pressing devices in the mold, the movement of the second pressing body is controlled by the ejection device, which drives the second pressing means of the product. During the demolding process of both sides of the product, the movement of the second mold and the second pressing body is achieved, which drives the product to get off the mold and avoids the use of parting lines.
This achieved burr-free and flash-free demolding of products, improving the yield of finished products and reducing production costs.
Smart Images
Figure CN223701594U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould structure field, specifically is a kind of ejection structure of insert reverse buckling. BACKGROUND
[0002] When the similar neck wearing, head wearing ear hanging product is made, the mould of reverse buckling type is generally needed to be used to form the product, and when the product is produced by using the mould of reverse buckling type, since the product includes arc structure, when the mould is opened, since part of arc structure is wrapped in the side of the mould of reverse buckling type, parting line is needed to be made in the reverse buckling position of the mould, so that the product can be separated from the mould when the mould is opened, and the product formed by the above-mentioned method is prone to burr and burr, which will affect the yield of the product and greatly increase the production cost. SUMMARY
[0003] In order to solve the above-mentioned problems, the present application provides an ejection structure of insert reverse buckling, which comprises a top die and a bottom die that are pressed together, a molding insert is fixed on the bottom die, a first mold pressing device is arranged between the molding insert and the top die, the first mold pressing device comprises a first mold pressing body for pressing on the top of the molding insert, a second mold pressing body is arranged in the first mold pressing body, the second mold pressing body is used for tightly abutting on both sides of the molding insert, an ejection device is arranged on the first mold pressing body for controlling the second mold pressing body to move away from the molding insert, a second mold pressing device is arranged on both sides of the molding insert, and the second mold pressing body is arranged between the molding insert and the second mold pressing device.
[0004] Further, the top and both sides of the molding insert are provided with arc-shaped grooves, the grooves are used for placing the base material after molding the product, the first mold pressing body comprises a support block and a first molding member arranged in the middle of the support block, and the shape of the bottom of the first molding member matches the top of the molding insert.
[0005] Further, the second mold pressing body comprises a first movable rod and a second molding member, the second molding member is opposite to the position of both sides of the molding insert, the first movable rod is connected with the first molding member through a first rotating shaft, one end of the first movable rod is connected to the second molding member, and the other end of the first movable rod extends from the top of the first molding member.
[0006] Further, the ejection device comprises a second movable rod and a driven rod, the second movable rod is connected with the support block through a second rotating shaft, one end of the driven rod is connected with the second movable rod, and the other end of the driven rod abuts on one side of the first movable rod.
[0007] Further, a first limiting groove is arranged in the first molding member, and the first movable rod is arranged in the first limiting groove.
[0008] Further, a second limiting groove is arranged on the side wall of the molding insert, and a limiting block matched with the second limiting groove is arranged on the bottom of the supporting block.
[0009] Further, the second compression mold device comprises a pushing oil cylinder, and a stroke block is arranged on the driving end of the pushing oil cylinder and opposite to the position of the second molding insert.
[0010] Further, a guide rail is arranged on the bottom mold and faces the molding insert, and the stroke block is clamped on the guide rail.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the mold opening stage, the second compression mold body is controlled by the mold opening device, so that the second compression mold body moves away from the molding insert, so that the second compression mold body can separate from the molding insert on both sides of the product, and then the first compression mold body can separate from the molding insert with the entire molded product, so that the entire mold opening is completed, and the parting line does not need to be made on the molding insert, and burrs and burrs are not easy to be generated on the molded product, so that the yield of finished products can be improved, and the loss of production cost can be reduced.
[0014] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor.
[0016] Figure 1 It is the overall structure schematic view of the utility model;
[0017] Figure 2 It is the structure schematic view of the first compression mold device of the utility model;
[0018] Figure 3 It is the structure schematic view of the molding insert of the utility model;
[0019] Figure 4 It is the structure schematic view of the second compression mold device of the utility model;
[0020] Figure 5 The structural sectional view of the present application.
[0021] The reference signs and names in the drawing are as follows:
[0022] Top die 10, bottom die 20, mold insert 100, first mold pressing device 200, first mold pressing body 110, second mold pressing body 120, mold ejection device 130, second mold pressing device 300, groove 101, support block 111, first mold forming piece 112, first movable rod 121, second mold forming piece 122, first rotating shaft 123, second movable rod 131, driven rod 132, second rotating shaft 133, first limiting groove 112a, second limiting groove 102, limiting block 111a, advancing oil cylinder 310, stroke block 320, guide rail 330. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0024] The present application will be described in more detail. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween.
[0025] In the description of the utility model, it should be explained that the direction words such as "front, back, top, bottom, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the indicated direction or position relation of position relation usually is based on the direction or position relation shown in the drawing, just for the convenience of describing the utility model and simplifying the description, under the condition of not making opposite statement, these direction words do not indicate and imply that the indicated device or element must have a particular direction or be constructed and operated with a particular direction, therefore can not be understood as the limitation of the protection scope of the utility model;Direction words "in, out" refer to the inside and outside relative to the contour of each component itself.In the description of the utility model, it should be explained that the use "first", "second" and other words to limit spare parts, just for the convenience of distinguishing the corresponding spare parts, like no other declaration, the above words do not have special meaning, therefore can not be understood as the limitation of the protection scope of the utility model.In the description of the embodiment of the application, the meaning of "a plurality of" is two and above, unless otherwise explicitly limited.
[0026] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by the person skilled in the art of the utility model. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments, not for limiting the utility model.
[0027] In addition, the technical features involved in different embodiments of the application described below can be combined with each other as long as there is no conflict.
[0028] The preferred embodiments of the utility model will be further described in conjunction with the drawings, and the preferred embodiments of the utility model will be further described in conjunction with the drawings Figure 1 And Figure 2 As shown in the figure, a mold structure of an insert undercut, comprising top die 10 and bottom die 20 that are pressed together, a mold insert 100 is fixed on the bottom die 20, a first die pressing device 200 is arranged between the mold insert 100 and the top die 10, the first die pressing device 200 comprises a first die pressing body 110 for pressing on the top of the mold insert 100, a second die pressing body 120 is arranged in the first die pressing body 110, the second die pressing body 120 is used for tightly adhering to both sides of the mold insert 100, the mold insert 100 is arranged on the first die pressing body 110, and the mold insert 100 is arranged on the first die pressing body 110. The second die pressing body 120 moves away from the mold insert 100 side of the mold insert 100, a second die pressing device 300 is arranged on both sides of the mold insert 100, and the second die pressing body 120 is arranged between the mold insert 100 and the second die pressing device 300.
[0029] In the embodiment, the application is mainly applied to products with arc-shaped reverse-drawing shape such as neck-wearing, head-wearing and ear-hanging products. In the molding stage, the base material is placed on the molding insert 100, and then the first mold pressing device 200 is pressed on the molding insert 100, so that the first mold pressing body 110 and the second mold pressing body 120 in the first mold pressing device 200 wrap the top and two sides of the molding insert 100 respectively. Then, the second mold pressing device 300 is used to press the two sides of the molding insert 100, and the top mold 10 is pressed on the bottom mold 20 to form a pressure cover on the molding insert 100, so that the base material forms a product on the surface of the molding insert 100, thereby completing the entire molding. In the demolding stage, the top mold 10 is first lifted, and then the second mold pressing device 300 is separated from the pressure cover on the two sides of the molding insert 100. Finally, the demolding device 130 is used to separate the second mold pressing body 120 with the two sides of the product from the molding insert 100, and the first mold pressing device 200 is lifted, so that the first mold pressing body 110 can separate the entire molded product from the molding insert 100, thereby completing the demolding.
[0030] Compared with the prior art, in the demolding stage, the second mold pressing body 120 is controlled by the demolding device 130 to move away from the molding insert 100, so that the second mold pressing body 120 can separate the two sides of the product from the molding insert 100, and then the first mold pressing body 110 can separate the entire molded product from the molding insert 100, thereby completing the entire demolding. The entire process does not need to make a parting line on the molding insert 100, and the molded product is not easy to produce burrs and burrs, thereby improving the yield of finished products and reducing the loss of production cost.
[0031] Further to the above embodiment, as shown in Figure 2 , Figure 3 and Figure 5 , the top and two sides of the molding insert 100 are provided with arc-shaped grooves 101 for placing the base material after molding the product. The first mold pressing body 110 includes a support block 111 and a first molding member 112 arranged in the middle of the support block 111. The bottom of the first molding member 112 matches the shape of the top of the molding insert 100. When the first mold pressing body 110 is pressed on the top of the molding insert 100, the first molding member 112 is used to embed in the groove 101 to press the base material. The second mold pressing body 120 is arranged in the first molding member 112.
[0032] Further to the above embodiment, as shown in Figure 2 and Figure 5As shown, the second compression mold body 120 comprises a first movable rod 121 and a second mold forming piece 122, the second mold forming piece 122 is opposite to the two sides of the mold insert 100, when the second compression mold body 120 is tightly attached to the two sides of the mold insert 100, the second mold forming piece 122 is tightly attached to the grooves 101 of the two sides of the mold insert 100, the first movable rod 121 is connected to the first mold forming piece 112 through a first rotating shaft 123, one end of the first movable rod 121 is connected to the second mold forming piece 122, and the other end extends from the top of the first mold forming piece 112.
[0033] Further to the above embodiments, in combination with Figure 2 and Figure 5 As shown, the ejection device 130 comprises a second movable rod 131 and a driven rod 132, the second movable rod 131 is connected to the support block 111 through a second rotating shaft 133, one end of the driven rod 132 is connected to the second movable rod 131, and the other end abuts against one side of the first movable rod 121, when the second movable rod 131 is actuated, the second movable rod 131 starts to rotate around the second rotating shaft 133, thereby causing the driven rod 132 to push the first movable rod 121 to start to rotate around the first rotating shaft 123, and further drive the second mold forming piece 122 to move away from the mold insert 100, so that the second compression mold body 120 can be separated from the mold insert 100 with the product on both sides.
[0034] Further to the above embodiments, as shown in Figure 5 A first limiting groove 112a is arranged in the first mold forming piece 112, and the first movable rod 121 is arranged in the first limiting groove 112a, when the actuator pushes the first movable rod 121 to start to rotate around the first rotating shaft 123, the first limiting groove 112a is used to limit the swing range of the first movable rod 121.
[0035] Further to the above embodiments, in combination with Figure 2 and Figure 3 As shown, a second limiting groove 102 is arranged on the side wall of the mold insert 100, and a limiting block 111a matching the shape of the second limiting groove 102 is arranged at the bottom of the support block 111, when the first compression mold body 110 is tightly attached to the top of the mold insert 100, the limiting block 111a is clamped into the second limiting groove 102, thereby limiting the stroke of the first compression mold body 110.
[0036] Further to the above embodiments, in combination with Figure 4 and Figure 5As shown, the second die device 300 comprises a pushing oil cylinder 310, a stroke block 320 is arranged on the driving end of the pushing oil cylinder 310, the stroke block 320 is opposite to the position of the second die member 122, in the die forming stage, the pushing oil cylinder 310 is started to drive the stroke block 320 to move towards the die forming insert 100, so that the stroke block 320 is pressed on the outside of the second die member 122, in the die opening stage, the pushing oil cylinder 310 drives the stroke block 320 to move away from the die forming insert 100, so that the stroke block 320 is separated from the outside of the second die member 122, thereby the die opening is performed by the first die device 200.
[0037] In some embodiments, in combination with Figure 4 and Figure 5 As shown, a guide rail 330 is arranged on the bottom die 20, the guide rail 330 is towards the die forming insert 100, the stroke block 320 is clamped on the guide rail 330, when the pushing oil cylinder 310 is started to drive the stroke block 320 to move, the guide rail 330 is used to guide the movement of the stroke block 320.
[0038] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.
Claims
1. A molding structure for an inverted insert, characterized in that, The system includes a top mold (10) and a bottom mold (20) pressed together. A molding insert (100) is fixed on the bottom mold (20). A first pressing device (200) is provided between the molding insert (100) and the top mold (10). The first pressing device (200) includes a first pressing body (110) for pressing onto the top of the molding insert (100), and a second pressing body (120) is provided inside the first pressing body (110). The second molding body (120) is used to fit tightly against both sides of the molding insert (100). A demolding device (130) is provided on the first molding body (110) for controlling the second molding body (120) to move away from the molding insert (100). A second molding device (300) is provided on both sides of the molding insert (100). The second molding body (120) is disposed between the molding insert (100) and the second molding device (300).
2. The ejection structure of the insert undercut according to claim 1, characterized in that, The top and both sides of the molding insert (100) are provided with arc-shaped grooves (101). The first molding body (110) includes a support block (111) and a first molding component (112) disposed in the middle of the support block (111). The bottom of the first molding component (112) and the top of the molding insert (100) are matched in shape.
3. The ejection structure of the insert undercut according to claim 2, characterized in that, The second molding body (120) includes a first movable rod (121) and a second molding component (122). The second molding component (122) is positioned opposite to the two sides of the molding insert (100). The first movable rod (121) is axially connected to the first molding component (112) via a first rotating shaft (123). One end of the first movable rod (121) is connected to the second molding component (122), and the other end extends from the top of the first molding component (112).
4. The ejection structure of the insert undercut according to claim 3, characterized in that, The ejection device (130) includes a second movable rod (131) and a driven rod (132). The second movable rod (131) is connected to the support block (111) via a second rotating shaft (133). One end of the driven rod (132) is connected to the second movable rod (131), and the other end abuts against one side of the first movable rod (121).
5. The ejection structure of the insert undercut according to claim 3, characterized in that, A first limiting groove (112a) is provided in the first molded part (112), and the first movable rod (121) is disposed in the first limiting groove (112a).
6. The ejection structure of the insert undercut according to claim 2, characterized in that, A second limiting groove (102) is provided on the side wall of the molding insert (100), and a limiting block (111a) matching the shape of the second limiting groove (102) is provided at the bottom of the support block (111).
7. The ejection structure of the insert undercut according to claim 3, characterized in that, The second molding device (300) includes a propulsion cylinder (310), and a stroke block (320) is provided on the drive end of the propulsion cylinder (310). The stroke block (320) is positioned opposite to the second molding component (122).
8. The ejection structure of the insert undercut according to claim 7, characterized in that, A guide rail (330) is provided on the bottom mold (20), the guide rail (330) faces the molding insert (100), and the stroke block (320) is engaged on the guide rail (330).