A quick release mold

Abstract

The present application discloses a quick-release mold in the field of injection mold technology, which includes a female template pad for supporting and positioning the mold; a male template, one side of which is provided with an assembly groove; a mold core assembly, which is movably connected to the female template pad and the male template, respectively, and the mold core assembly is assembled in the assembly groove; a parting surface is provided between the female template pad and the male template, and a shoulder screw pad is provided between the parting surfaces; after mold closing, the parting surface between the female template pad and the male template is fitted together, and the shoulder screw pad is removed, and the mold is switched from a two-plate mold structure to a fake three-plate mold structure. Compared with the traditional mold frame structure design, the mold is universal, the thickness of the male template can be reduced, and the female template and the lower fixed plate can be omitted, which greatly reduces the size of the upper and lower ejector plates, reduces the mold shape, and further reduces the tonnage of the injection molding machine; at the same time, it can be directly disassembled and installed from the front of the mold, which improves work efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to a quick-release mold. Background Art

[0002] Mobile phones, televisions and all plastic products in daily life are molded by mold injection. As an important tool in modern industrial production, molds are widely used in various manufacturing fields. After the injection molding machine injects the molten plastic into the mold cavity, the plastic products ejected by cooling and molding are widely used. However, there are some obvious deficiencies in the current mold technology. In particular, the versatility of the mold frame has become a bottleneck restricting the development of the mold industry. The molds in the prior art are only suitable for injection molding models of specific shapes and sizes, lacking versatility and flexibility. This limits the scope of application of molds in different production scenarios. For companies that need to produce multiple models, they may need to purchase multiple molds, which increases costs and management difficulties. In actual use, cleaning and maintenance become difficult due to the difficult-to-reach corners or gaps inside the mold.

[0003] Therefore, it is necessary to develop a new type of mold technology to address the shortcomings of existing mold technology and solve the problems of poor versatility of hamburger molds, large mold size, and difficult disassembly and cleaning. By optimizing mold frame design, reducing mold volume, and simplifying the disassembly process, the versatility of molds can be improved, production costs can be reduced, and production efficiency can be improved, bringing more convenience and benefits to industrial production. Utility Model Content

[0004] The technical problem to be solved by the present application is that the molds in the prior art have poor versatility, large size and are difficult to assemble and disassemble.

[0005] In order to solve the above technical problems, this application is implemented by adopting the following technical solutions:

[0006] The present application provides a quick-release mold, comprising:

[0007] Mother template pad, used for supporting and positioning the mold;

[0008] A male mold plate, one side of which is provided with an assembly groove;

[0009] A mold core assembly is movably connected to the female mold plate and the male mold plate, respectively, and the mold core assembly is assembled in the assembly groove;

[0010] A parting surface is provided between the female template pad and the male template, and a shoulder screw pad is provided between the parting surfaces;

[0011] After the mold is closed, the parting surfaces between the female mold plate and the male mold plate are fitted together, the shoulder screw pad is removed, and the mold is switched from a two-plate mold structure to a false three-plate mold structure.

[0012] Based on the aforementioned quick-release mold, the mold core assembly includes a male mold core, a female mold core and an ejector pin assembly, an injection cavity is formed between the male mold core and the female mold core; the female mold core is movably connected to the female mold plate pad, and the male mold core is movably connected to the male mold plate;

[0013] Based on the aforementioned quick-release mold, the male mold core and the female mold core are movably connected, and the movably connected structure fixes the front sides of the male mold core and the female mold core.

[0014] Based on the aforementioned quick-release mold, it also includes an upper fixing plate, and the mother template pad is fixed to the upper fixing plate by shoulder screws;

[0015] Based on the aforementioned quick-release mold, it also includes a mold foot fixedly connected to the male mold plate, a mold frame groove is opened on the outer side of the mold foot, and a support column is provided at the bottom of the mold foot.

[0016] Based on the aforementioned quick-release mold, the ejector assembly includes an ejector, an upper ejector plate and a lower ejector plate. The upper ejector plate and the lower ejector plate are guided by shoulder screws, and a support column is provided at the bottom of the lower ejector plate.

[0017] Based on the aforementioned quick-release mold, the ejector pin is fixed on the upper ejector pin plate, return pins are provided on both sides of the ejector pin, and the return pins are provided with springs.

[0018] Based on the aforementioned quick-release mold, shoulder screws are provided on both sides of the return pin to fix the upper ejector plate and the lower ejector plate to the bottom of the male mold core.

[0019] Based on the aforementioned quick-release mold, it also includes a hot runner plate, which is connected to the mother mold plate through shoulder screws, and water channels are provided in the hot runner plate and other plates. The male mold core and the female mold core are provided with independent water channels, which are directly connected to the external temperature control equipment through water joints to control the temperature distribution inside the mold.

[0020] Based on the aforementioned quick-release mold, cushion blocks are respectively provided between the male mold plate and the female mold plate, distributed around the male mold core and the female mold core, and the height of the cushion blocks is the same as the mold closing height of the male mold core and the female mold core.

[0021] Based on the aforementioned quick-release mold, it also includes an opener and closer pull sleeve structure, which includes an opener and closer pull sleeve and an opener and closer. The opener and closer pull sleeve and the opener and closer are respectively installed on one side of the corresponding female template pad and the male template, and the opener and closer pull sleeve and the opener and closer are assembled according to standard interference fit.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] By adjusting the shoulder screw pads between the mold frame parting surfaces, the two-plate mold structure and the three-plate mold structure of the hamburger mold can be switched to achieve the versatility of the hamburger mold. The male and female mold cores are open and fixed on the male mold plate and the female mold pad. Compared with the traditional mold frame structure design, the thickness of the male mold plate can be reduced, and the female mold plate and the lower fixing plate can be omitted, which greatly reduces the size of the upper and lower ejector plates, reduces the mold shape, and further reduces the tonnage of the injection molding machine; at the same time, the mold can be directly disassembled and installed from the front, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of the overall structure of a quick-release mold provided in an embodiment of the present application;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of a quick-release mold provided in an embodiment of the present application;

[0026] Figure 3 It is a partial enlarged view of a mold core component of a quick-release mold provided in an embodiment of the present application;

[0027] Figure 4 This is a male mold side assembly structure diagram of a quick-release mold provided in an embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the assembly structure of a female mold side of a quick-release mold provided in an embodiment of the present application;

[0029] Figure 6 It is a partial enlarged view of an opening and closing sleeve structure and a shoulder screw structure of a quick-release mold provided in an embodiment of the present application;

[0030] Figure 7 This is a guide pin and guide sleeve assembly diagram of a quick-release mold provided in an embodiment of the present application;

[0031] Figure 8 This is a partial enlarged view of a mother mold slider and a shovel chicken structure of a quick-release mold provided in an embodiment of the present application.

[0032] Reference numerals:

[0033] Mold foot; 2-male mold plate; 3-male mold plate pad; 4-female mold plate pad; 5-female mold plate pad; 6-hot runner plate; 7-upper fixed plate; 8-first support column; 9-injection molding machine ejector; 10-guide sleeve; 11-guide column; 12-first shoulder screw; 13-shoulder screw pad; 14-opener and closer; 15-opener and closer pull sleeve; 16-female mold core; 17-male mold core; 18-return needle; 19-spring; 20-second shoulder screw; 21-second support column; 22-precision positioning; 23-locating pin; 24-lower ejector plate; 25-upper ejector plate; 26-ejector; 27-shovel chicken; 28-female mold slider; 29-injection molding cavity; 30-upper parting surface; 31-lower parting surface. DETAILED DESCRIPTION

[0034] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0035] Example 1

[0036] Figure 1 The overall structure of a quick-release mold provided in this embodiment is a cross-sectional view. The structure of the mold includes: an upper fixing plate 7, a hot runner plate 6, a female mold plate pad 5, a mold core assembly, a male mold plate 2, and a mold foot 1. The above components are assembled to form a mold as shown in FIG. Figure 2 The "hamburger" shaped mold shown in the figure is a plastic product that is ejected after the injection molding machine injects the molten plastic into the mold cavity after cooling and molding.

[0037] like Figure 3 As shown, the mold core assembly includes a male mold core 17, a female mold core 16 and an ejector assembly, and an injection mold cavity 29 is formed between the male mold core and the female mold core;

[0038] The model of the mother mold core side is as follows Figure 4 In the assembly steps shown, the mother template pad 5 is directly connected to the mother mold core 16 in the mold core assembly, and the mother mold core 16 is fixed in the mother template pad 5. The mother template pad 5 is fixed to the upper fixing plate 7 by passing through the hot runner plate 6 through the second shoulder screw 20.

[0039] The male mold side model is as follows Figure 5 Assembled in the steps shown, the male mold core 17 is openly fixed to the male mold plate 2 through the positioning pins 23 and the fine positioning pins 22, and the male mold plate 2 is fixed on the mold foot 1;

[0040] When the female mold core side model and the male mold core side model are assembled by mold closing, the positioning pin 23 is fixed to the front of the male mold core 17 and the female mold core 16 and the male mold core 17 and the female mold core 16 are aligned by the precision positioning 22, so that the male mold core 17 and the female mold core 16 can be disassembled and installed from the front of the quick-release mold. After mold closing, the upper parting surface 30 of the female mold plate pad 5 and the lower parting surface 31 of the male mold plate 2 are attached together, and the injection cavity 29 on the male mold core 17 and the female mold core 16 are combined into a complete injection molded product shape. The above components are finally combined into a Figure 2 The "hamburger" shaped mold shown.

[0041] Figure 6 As shown, an opener and closer pull sleeve structure and a shoulder screw structure are provided between the parting surfaces, and the shoulder screw structure includes a first shoulder screw 12 and a shoulder screw pad 13. After removing the shoulder screw pad 13, the above-mentioned model is assembled to form a false three-plate structure, and a gap is formed between the shoulder of the first shoulder screw 12 and the bottom of the countersunk hole of the mother template pad 5. The gap is the space brought by the removal of the shoulder screw pad 13, and is also the separation distance between the upper fixed plate 7 and the mother template pad 5. When the mold is opened, the mother template pad 5 moves in the gap.

[0042] The shutter pull sleeve structure includes a shutter pull sleeve 15 and a shutter 14, which are respectively installed on one side of the corresponding female template pad 5 and the male template 2, and the shutter pull sleeve 15 and the shutter 14 are assembled according to the standard interference fit. The shutter pull sleeve can support and protect the mold core parting surface, and can be used in combination with the shutter 14 and the first shoulder screw 12 to realize the parting mold between the female template pad 5 and the upper fixed plate 7.

[0043] The working principle of this embodiment is as follows:

[0044] In this embodiment, a female mold slider is designed to form the female mold undercut. The female mold slider needs to complete the mold opening movement before the male and female mold cores are opened, otherwise the molded product will have the problem of ejection and demoulding.

[0045] like Figure 8 As shown, the shovel chicken 27 is fixed on the upper fixed plate 7 and is used to drive the female mold slider 28 installed on the female mold core 16. The male mold plate 2 and the mold foot 1 are fixedly connected to the movable mold side of the injection molding machine.

[0046] Because the shutter 14 and the shutter pull sleeve 15 are interference fit, the shutter structure can ensure that the male mold plate 2 and the female mold plate pad 5 are integrated after mold closing. Therefore, when the mold is opened, the injection molding machine pulls the male mold side to open the mold, and the female mold pad 5 will move simultaneously with the male mold side template.

[0047] Because the upper fixing plate 7 is fixed on the panel of the injection molding machine, and the second shoulder screw 20 passes through the female template pad 5 and is fixed on the upper fixing plate 7, removing the shoulder screw pad 13 on the first shoulder screw 12 can convert the two-plate mold state (the hot runner plate 6 and the female template pad 5 are fixedly connected and cannot be separated) into a false three-plate mold state (the hot runner plate 6 and the female template pad 5 can be separated by a certain distance). When the female template pad 5 moves to the designed stroke (the designed stroke is the height of removing the shoulder screw pad 13, which can ensure the completion of the mold opening action of the shovel chicken 27 on the female mold slider 28), the hanging platform of the first shoulder screw 12 will hit the bottom of the countersunk hole of the female template pad 5 to limit the movement of the female mold pad 5 and the male template 2. At this time, the shutter 14 and the shutter pull sleeve 15 are forcibly pulled apart, and the injection molding machine continues to open the mold to perform the entire mold opening action. While the first shoulder screw 12 is hanging at the bottom of the countersunk hole of the female template pad 5, the shovel chicken 27 completes the mold opening action of the female mold slider 28, and the mold continues to open the male and female mold cores until the product is ejected to complete a molding cycle.

[0048] The female mold core 16 is openly fixed on the female mold plate pad 5, and the male mold core 17 is also openly fixed on the male mold plate 2, which simplifies the mold disassembly and installation process and facilitates mold operators to perform daily inspection and maintenance of the male and female mold cores.

[0049] The ejector assembly is assembled in a connected assembly groove opened on one side of the male mold plate 2, and a through hole is provided below the assembly groove to communicate with the ejector rod 9 of the injection molding machine, thereby realizing a seamless connection between the mold and the injection molding machine. During the injection molding process, the ejector rod 9 of the injection molding machine can directly act on the ejector assembly through the through hole to push it to perform the ejection action. This not only improves the operating efficiency of the mold, but also ensures the accuracy and stability of the ejection action, thereby avoiding product damage or mold failure caused by improper ejection.

[0050] The mold foot 1 is fixedly connected to the male mold plate 2, and a mold frame groove is provided on the outer side of the mold foot 1 for fixing the mold frame to the fixed plate of the injection molding machine. A first support column 8 is arranged at the bottom of the mold foot 1 for supporting the entire mold and preventing the male mold plate from deforming due to excessive pressure during molding.

[0051] In this embodiment, a male template pad 3 and a female template pad 4 are respectively provided between the male template 2 and the female template pad 5. The male template pad 3 and the female template pad 4 are closely attached to both sides of the male mold core 17 and the female mold core 16, and are used to protect the male mold core and the female mold core and fix the guide column 11 and the guide sleeve 10. The guide column 11 and the guide sleeve 10 are as shown in FIG. Figure 7 Assemble in the manner shown.

[0052] The ejector assembly includes an ejector 26, an upper ejector plate 25 and a lower ejector plate 24, and the upper ejector plate 25 and the lower ejector plate 24 are guided by a second shoulder screw 20. The ejector 26 is fixed on the upper ejector plate 25, and return pins 18 are provided on both sides of the ejector 26. The return pins 18 are provided with springs 19 for restoring the upper ejector plate after the ejector plate is ejected by the machine platform ejector rod.

[0053] Second shoulder screws 20 are provided on both sides of the return pin 18 to fix the upper ejector plate 25 and the lower ejector plate 24 to the bottom of the male mold core 17; they are replaced at the same time as the male mold plate 2 to avoid confusion or loss of the ejector assembly during disassembly and assembly.

[0054] A second support column 21 is disposed at the bottom of the lower ejector plate 24 to strengthen the strength of the center of the mold core assembly weakened by the opening of the frame.

[0055] By removing the shoulder screw pad between the parting surfaces of the mold of the utility model, the switch between the two-plate mold and the three-plate mold structure can be realized. Compared with the traditional mold frame structure design, the mold structure can be universal, the thickness of the male mold plate can be reduced, and the female mold plate and the lower fixed plate can be omitted. The size of the upper and lower ejector plates is greatly reduced, the mold shape is reduced, and the tonnage of the injection molding machine can be further reduced.

[0056] The open fixed design enables the core components to be removed and installed from the front of the quick-release mold. Compared with the traditional method of removing from the side or back of the mold, front removal and installation are more intuitive and convenient, reducing the difficulty of operation and the workload of the operator. At the same time, this also improves the reliability and durability of the mold because it reduces the risk of damage to mold components caused by frequent removal and installation.

[0057] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A quick-release mold, characterized in that: include Mother template pad, used for supporting and positioning the mold; A male mold plate, one side of which is provided with an assembly groove; A mold core assembly is movably connected to the female mold plate and the male mold plate, respectively, and the mold core assembly is assembled in the assembly groove; A parting surface is provided between the female template pad and the male template, and a shoulder screw pad is provided between the parting surfaces; After the mold is closed, the parting surfaces between the female mold plate and the male mold plate are fitted together, the shoulder screw pad is removed, and the mold is switched from a two-plate mold structure to a false three-plate mold structure.

2. The quick-release mold according to claim 1, characterized in that: The mold core assembly comprises a male mold core, a female mold core and an ejector pin assembly, an injection cavity is formed between the male mold core and the female mold core; the female mold core is movably connected to the female mold plate pad, and the male mold core is movably connected to the male mold plate.

3. The quick-release mold according to claim 2, characterized in that: The male mold core and the female mold core are movably connected, and the movably connected structure fixes the front sides of the male mold core and the female mold core.

4. The quick-release mold according to claim 1, characterized in that: It also includes an upper fixing plate, and the female template pad is fixed on the upper fixing plate by shoulder screws.

5. The quick-release mold according to claim 1, characterized in that: It also includes a mold foot fixedly connected to the male mold plate, a mold frame groove is opened on the outer side of the mold foot, and a support column is arranged at the bottom of the mold foot.

6. The quick-release mold according to claim 2, characterized in that: The ejector assembly includes an ejector, an upper ejector plate and a lower ejector plate, the ejector is fixed on the upper ejector plate, return pins are provided on both sides of the ejector, the return pins are provided with springs, the upper ejector plate and the lower ejector plate are guided by shoulder screws, and a support column is provided at the bottom of the lower ejector plate.

7. The quick-release mold according to claim 6, characterized in that: Shoulder screws are arranged on both sides of the return pin to fix the upper ejector plate and the lower ejector plate to the bottom of the male mold core.

8. The quick-release mold according to claim 2, characterized in that: It also includes a hot runner plate, which is connected to the female mold plate through shoulder screws. The hot runner plate and other plates are provided with water channels. The male mold core and the female mold core are provided with independent water channels, which are directly connected to the external temperature control equipment through the water joint to control the temperature distribution inside the mold.

9. The quick-release mold according to claim 1, characterized in that: Pads are respectively arranged between the male mold plate and the female mold plate and distributed around the male mold core and the female mold core. The height of the pads is the same as the mold closing height of the male mold core and the female mold core.

10. The quick-release mold according to claim 1, characterized in that: It also includes an opener and closer pull sleeve structure, which includes an opener and closer pull sleeve and an opener and closer. The opener and closer pull sleeve and the opener and closer are respectively installed on one side of the corresponding female template pad and the male template, and the opener and closer pull sleeve and the opener and closer are assembled according to standard interference fit.

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