Die-casting die for L-shaped metal product

Abstract

The utility model discloses a die-casting die for an L-shaped metal product, and relates to the technical field of die-casting dies. The mold comprises a front mold plate and a rear mold plate, a front mold core is embedded in the front mold plate, a rear mold core is embedded in the rear mold plate, the mold further comprises a sky side sliding block, a ground side sliding block, an operation side sliding block and a non-operation side sliding block, the sky side sliding block, the ground side sliding block, the operation side sliding block and the non-operation side sliding block are inserted between the front mold core and the rear mold core, the sky side sliding block is provided with a first bone position forming area, and the ground side sliding block is provided with a second bone position forming area. The front mold core is provided with a first bone position forming area, the rear mold core is provided with a second bone position forming area, the sky side sliding block, the ground side sliding block, the operation side sliding block and the non-operation side sliding block are each connected with a hydraulic oil cylinder, a cavity is formed among the sky side sliding block, the ground side sliding block, the operation side sliding block, the non-operation side sliding block, the front mold core and the rear mold core, and the front mold core is provided with a positioning protrusion. And the rear mold core, the sky side sliding block, the ground side sliding block, the operation side sliding block and the non-operation side sliding block are provided with clamping grooves. According to the utility model, normal and smooth demolding of products can be ensured, and the products are prevented from large deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, and particularly relates to a die-casting mold for an L-shaped metal product. Background Art

[0002] A die-casting mold is a tool for casting metal parts. Liquid or semi-liquid metal is filled into the mold cavity at high speed under high pressure and rapidly cooled and solidified under a certain pressure to obtain die-cast parts with the required shape and performance.

[0003] In the die-casting process, for some L-shaped metal products, such as Figure 1 As shown in a kind of L-shaped metal bracket, because such products are L-shaped, in order to increase the strength and rigidity of the products, there are many ribs (strengthening ribs) on the two outer inclined planes of the products. Therefore, the die-casting mold for such L-shaped metal products needs to ensure the normal and smooth demolding of the products, and at the same time avoid the situation that the products are deformed due to sticking to the mold caused by the ribs. Therefore, it is necessary to provide a die-casting mold for an L-shaped metal product. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a die-casting mold for an L-shaped metal product, which can ensure the normal and smooth demolding of the product and avoid large deformation of the product.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A die-casting mold for an L-shaped metal product, comprising a front template and a rear template arranged opposite to each other. A front mold core is embedded on one side of the front template facing the rear template, and a rear mold core is embedded on one side of the rear template facing the front template. It also includes a top-side slider and a bottom-side slider arranged opposite to each other, and an operating-side slider and a non-operating-side slider arranged opposite to each other. The top-side slider, bottom-side slider, operating-side slider, and non-operating-side slider are inserted between the front mold core and the rear mold core. The top-side slider is located above the front mold core and the rear mold core, the bottom-side slider is located below the front mold core and the rear mold core, the operating-side slider is located in front of the front mold core and the rear mold core, and the non-operating-side slider is located behind the front mold core and the rear mold core. One side of the top-side slider facing the bottom-side slider is provided with an inclined surface, and a first rib forming area is provided on this inclined surface. One side of the rear mold core facing the bottom-side slider is also provided with an inclined surface, and a second rib forming area is provided on this inclined surface. A hydraulic cylinder is connected to each of the top-side slider, bottom-side slider, operating-side slider, and non-operating-side slider. A cavity for manufacturing an L-shaped metal bracket is formed between the top-side slider, bottom-side slider, operating-side slider, non-operating-side slider, front mold core, and rear mold core. A plurality of positioning protrusions are arranged at intervals on one side of the front mold core facing the rear mold core, the top-side slider, the bottom-side slider, the operating-side slider, and the non-operating-side slider. Engaging grooves are provided on one side of the rear mold core, the top-side slider, the bottom-side slider, the operating-side slider, and the non-operating-side slider facing the front mold core, and the engaging grooves are adapted to the positioning protrusions.

[0007] In some embodiments, an engaging groove is respectively provided at each of the four corners of the rear mold core, and a positioning protrusion is respectively provided corresponding to each of the four corners of the front mold core; two engaging grooves are provided on each of the top-side slider, bottom-side slider, operating-side slider, and non-operating-side slider, and two engaging grooves are respectively provided at the positions corresponding to the top-side slider, bottom-side slider, operating-side slider, and non-operating-side slider on the front mold core.

[0008] Compared with the prior art, the present utility model at least achieves the following beneficial effects:

[0009] According to the structural characteristics of the L-shaped metal bracket, the die-casting mold is provided with a top-side slider, a bottom-side slider, an operation-side slider, and a non-operation-side slider in four directions respectively. Thus, a cavity for manufacturing the L-shaped metal bracket is formed between the top-side slider, the bottom-side slider, the operation-side slider, the non-operation-side slider, the front mold core, and the rear mold core. A positioning protrusion is provided on the front mold core, and engaging grooves are provided on the rear mold core, the top-side slider, the bottom-side slider, the operation-side slider, and the non-operation-side slider. When the mold is closed, accurate positioning can be achieved through the engagement of the positioning protrusion and the engaging grooves, avoiding the occurrence of gaps due to misalignment of the sliders, preventing the die-casting phenomenon caused by the ejection of material chips from the gaps of the mold, avoiding the problem of unstable product dimensions, improving the die-casting quality of the product, and ensuring the safety and reliability of the mold. In addition, the top-side slider, the bottom-side slider, the operation-side slider, and the non-operation-side slider are respectively driven by a hydraulic cylinder and can perform the actions of being pulled out and retracted in the set order. After the rear mold core moves away from the front mold core to open the mold, the top-side slider is pulled out immediately, which can avoid the adhesion and deformation of the rib position of the L-shaped metal bracket and the first rib forming area. Then, the operation-side slider and the non-operation-side slider are pulled out, and finally the bottom-side slider is pulled out, and the product can be demolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Now, one or more embodiments of the present invention will be described only by way of example with reference to the accompanying drawings, in which:

[0011] Figure 1 is a schematic structural diagram of the L-shaped metal bracket;

[0012] Figure 2 is a schematic structural diagram of an embodiment of the present application;

[0013] Figure 3 is an exploded structural diagram of an embodiment of the present application;

[0014] Figure 4 is an exploded structural diagram of another perspective of an embodiment of the present application;

[0015] Figure 5 is a schematic structural diagram of the positioning protrusion of an embodiment of the present application;

[0016] Figure 6 is a schematic structural diagram of the engaging groove of an embodiment of the present application;

[0017] Figure 7 is a cross-sectional view when the front mold core and the rear mold core of an embodiment of the present application are closed.

[0018] The reference numerals in the figure are: 1, front template; 11, first receiving groove; 12, feed inlet; 2, rear template; 21, second receiving groove; 3, top-side slider; 31, first rib-forming area; 4, bottom-side slider; 5, operation-side slider; 6, non-operation-side slider; 7, front mold core; 8, rear mold core; 81, second rib-forming area; 9, positioning protrusion; 10, engaging groove; 20, first positioning groove; 30, second positioning groove; 40, third positioning groove; 50, fourth positioning groove; 60, runner; 70, guide post; 80, guide sleeve; 90, L-shaped metal bracket. Detailed implementation mode

[0019] The present utility model will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. It should be understood, however, that the present application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0020] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "several" and "multiple" is two or more, unless otherwise specifically defined. In the present application, unless otherwise clearly specified and defined, the terms such as "installed", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0021] The die structure of the L-shaped metal bracket 90 in the embodiment of the present application is applied to a die casting machine (not shown in the figure) for die casting to form the L-shaped metal bracket 90.

[0022] Such as Figures 2 to 7As shown in the figure, the die structure of the L-shaped metal bracket 90 includes a front template 1, a rear template 2, a top-side slider 3, a bottom-side slider 4, an operating-side slider 5 and a non-operating-side slider 6; the front template 1 and the rear template 2 are arranged opposite to each other, a front mold core 7 is embedded on the side of the front template 1 facing the rear template 2, and a rear mold core 8 is embedded on the side of the rear template 2 facing the front template 1; the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6 are inserted between the front mold core 7 and the rear mold core 8, wherein the top-side slider 3 and the bottom-side slider 4 are arranged opposite to each other, the operating-side slider 5 and the non-operating-side slider 6 are arranged opposite to each other, and the top-side slider 3 is located on the upper side of the front mold core 7 and the rear mold core 8, the bottom-side slider 4 is located on the lower side of the front mold core 7 and the rear mold core 8, the operating-side slider 5 is located on the front side (the side where the staff operates) of the front mold core 7 and the rear mold core 8, and the non-operating-side slider 6 is located on the rear side (the side away from the staff) of the front mold core 7 and the rear mold core 8. A cavity for manufacturing the L-shaped metal bracket 90 is formed between the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, the non-operating-side slider 6, the front mold core 7 and the rear mold core 8. A plurality of positioning protrusions 9 are arranged at intervals on the side of the front mold core 7 facing the rear mold core 8, the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6, and engaging grooves 10 are arranged on the sides of the rear mold core 8, the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6 facing the front mold core 7, and the engaging grooves 10 are adapted to the positioning protrusions 9.

[0023] A hydraulic cylinder (not shown in the figure) is respectively connected to the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6. Specifically, the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6 are connected to the piston rods of the hydraulic cylinders, and the four hydraulic cylinders can be respectively used to drive the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6 to perform the actions of withdrawing and returning.

[0024] Since a plurality of rib structures are provided on the two outer inclined surfaces of the L-shaped metal bracket 90, a slope is provided on the side of the top-side slider 3 facing the bottom-side slider 4, and a first rib forming area 31 is provided on this slope; a slope is provided on the side of the rear mold core 8 facing the bottom-side slider 4, and a second rib forming area 81 is provided on this slope.

[0025] Optionally, an engaging groove 10 is respectively arranged at the four corners of the rear mold core 8, and a positioning protrusion 9 is respectively arranged corresponding to the four corners of the front mold core 7; two engaging grooves 10 are arranged on each of the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6, and two engaging grooves 10 are respectively arranged at the positions of the front mold core 7 corresponding to the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6. The present application does not limit the number of the engaging grooves 10 and the positioning protrusions 9, and can be reasonably increased or decreased on the premise of ensuring the effective positioning of the top-side slider 3, the bottom-side slider 4, the operating-side slider 5 and the non-operating-side slider 6.

[0026] The working principle of the present utility model is as follows:

[0027] The front template 1 is fixed on the die-casting machine, and the rear template 2 is movably installed on the die-casting machine. The rear template 2 can move towards the front template 1 for mold closing operation, or move away from the front template 1 for mold opening operation. When the mold is closed, the positioning protrusion 9 on the front mold core 7 engages with the engaging grooves 10 on the rear mold core 8, the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, and the non-operating-side slider 6, so as to accurately position the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, and the non-operating-side slider 6, avoid the misalignment of the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, and the non-operating-side slider 6 to cause gaps, and prevent the mold from flashing (the material chips fly out from the gaps of the mold), prevent the mold from being pressed (the mold is damaged or deformed due to the existence of material chips during mold closing), and solve the problem of unstable product dimensions, improve the die-casting quality of the product, and ensure the safety and reliability of the mold.

[0028] In this embodiment, the first positioning grooves 20, the second positioning grooves 30, the third positioning grooves 40, and the fourth positioning grooves 50 for the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, and the non-operating-side slider 6 to be inserted are respectively provided on the upper side, lower side, front side, and rear side of the front mold core 7 and the rear mold core 8. On the side of the front template 1 facing the rear template 2, a first receiving groove 11 is provided, and on the side of the rear template 2 facing the front template 1, a second receiving groove 21 is provided. The front mold core 7 is received and fixed in the first receiving groove 11, and the rear mold core 8 is received and fixed in the second receiving groove 21.

[0029] It should be noted that when the mold is opened, the positioning protrusion 9 on the front mold core 7 is separated from the engaging grooves 10 on the rear mold core 8, the top-side slider 3, the bottom-side slider 4, the operating-side slider 5, and the non-operating-side slider 6. In order to prevent the bone position of the L-shaped metal bracket 90 from adhering to the first bone position forming area 31 and causing product deformation, it is necessary to quickly withdraw the top-side slider 3; in addition, since the front and rear sides of the L-shaped metal bracket 90 are flat surfaces, in order to prevent friction between the L-shaped metal bracket 90 and the operating-side slider 5 and the non-operating-side slider 6, it is necessary to withdraw the operating-side slider 5 and the non-operating-side slider 6 secondly, and finally withdraw the bottom-side slider 4. Therefore, the mold opening sequence of this mold is: after the rear mold core 8 moves away from the front mold core 7 for mold opening, first withdraw the top-side slider 3, then withdraw the operating-side slider 5 and the non-operating-side slider 6, and finally withdraw the bottom-side slider 4, so as to demold the L-shaped metal bracket 90; the mold closing sequence of this mold is: first return the bottom-side slider 4, secondly return the operating-side slider 5 and the non-operating-side slider 6, thirdly return the top-side slider 3, and finally the rear mold core 8 moves towards the front mold core 7 for mold closing.

[0030] A runner 60 is formed between the front die insert 7 and the ejector slide 4 on the stationary side, and the runner 60 is in communication with the cavity of the mold. Specifically, a feed port 12 communicating with the runner 60 is provided on the front template 1, and a nozzle (not shown in the figure) is connected to the feed port 12. When the mold is closed, the molten metal liquid enters the runner 60 from the nozzle, and then enters the cavity through the runner 60.

[0031] Guide posts 70 are provided at the four corners of the front template 1, and guide sleeves 80 adapted to the guide posts 70 are provided on the rear template 2. The guide posts 70 are inserted into the guide sleeves 80. The cooperation between the guide posts 70 and the guide sleeves 80 can provide guidance for the mold closing of this die-casting mold.

[0032] It should be understood that all of the above embodiments are exemplary rather than restrictive. Any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the concept of the present invention still fall within the scope of the technical solutions of the present invention.

Claims

1. A die-casting mold for an L-shaped metal product, comprising a front mold plate, a rear mold plate, a front mold core and a rear mold core, characterized in that: The tool further comprises a top slider and a bottom slider which are arranged opposite to each other, and an operating side slider and a non-operating side slider which are arranged opposite to each other, wherein the top slider, the bottom slider, the operating side slider and the non-operating side slider are inserted between the front mold core and the rear mold core, a slope is provided on the side of the top slider facing the bottom slider, and a first bone position forming area is provided on the slope, and a slope is provided on the side of the bottom slider facing the bottom slider, and a second bone position forming area is provided on the slope, a hydraulic cylinder is connected to the top slider, the bottom slider, the operating side slider and the non-operating side slider respectively, a cavity for manufacturing an L-shaped metal bracket is formed between the top slider, the bottom slider, the operating side slider, the non-operating side slider, the front mold core and the rear mold core, a plurality of positioning protrusions are provided at intervals on the side of the front mold core facing the rear mold core, the top slider, the bottom slider, the operating side slider and the non-operating side slider, and a clamping groove is provided on the side of the rear mold core, the top slider, the bottom slider, the operating side slider and the non-operating side slider facing the front mold core, and the clamping groove is matched with the positioning protrusion.

2. The die-casting mold for L-shaped metal products according to claim 1, characterized in that: The four corners of the rear mold are respectively provided with a locking groove, and the four corners of the front mold are respectively provided with a positioning protrusion; the sky side slider, the ground side slider, the operating side slider and the non-operating side slider are each provided with two locking grooves, and the front mold is respectively provided with two locking grooves corresponding to the positions of the sky side slider, the ground side slider, the operating side slider and the non-operating side slider.

3. The die-casting mold for L-shaped metal products according to claim 1, characterized in that: The upper side, lower side, front side and rear side of the front mold core and the rear mold core are respectively provided with a first positioning groove, a second positioning groove, a third positioning groove and a fourth positioning groove, and the sky side slider, the ground side slider, the operating side slider and the non-operating side slider are respectively plugged into the first positioning groove, the second positioning groove, the third positioning groove and the fourth positioning groove.

4. The die-casting mold for L-shaped metal products according to claim 1, characterized in that: The front template is provided with a first receiving groove on the side facing the rear template, and the rear template is provided with a second receiving groove on the side facing the front template. The front mold core is received and fixed in the first receiving groove, and the rear mold core is received and fixed in the second receiving groove.

5. The die-casting mold for L-shaped metal products according to claim 1, characterized in that: A flow channel is formed between the front mold core and the ground side slider, and the flow channel is communicated with the mold cavity.

6. The die-casting mold for L-shaped metal products according to claim 5, characterized in that: The front template is provided with a feed port communicated with the flow channel, and the feed port is connected with a filling nozzle.

7. The die-casting mold for L-shaped metal products according to claim 1, characterized in that: The four corners of the front template are provided with guide posts, the rear template is provided with guide sleeves matched with the guide posts, and the guide posts are inserted into the guide sleeves.

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