Simplified core-pulling mold structure for male mold and female mold

Abstract

The utility model discloses a core-pulling mold structure for simplifying a male mold and a female mold, which comprises a mold core, a male mold core, a female mold core and an ejector rod, the male mold core comprises a lower male mold core, a side male mold core and a male mold insert core, the lower male mold core and the side male mold core are mounted on the mold core, the male mold insert core is butted with the lower male mold core in an inserting manner, a female mold core is inserted in the inner side direction of the male mold insert core, the female mold core is matched with the side male mold core, and an ejector rod for ejecting the male mold insert core is inserted in the lower male mold core. According to the mode, the mold is simplified, the male mold insert core and the female mold insert core are integrally ejected, the core is pulled out of a machine in a split mode, the cost is reduced, and the problem that the cost is too high when the products are produced in a small batch mode is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a simplified male and female mold core-pulling mold structure. Background Art

[0002] Some molds require male and female core pulling according to conventional structures. The structure is very complicated and will greatly increase the thickness of the mold, and even cause the specifications of the molding machine to increase. For molds with relatively small demand for some products, it will cause great waste. If the core pulling can be simplified in terms of mold structure and the mold thickness can be reduced, the cost will be greatly reduced.

[0003] Figure 1 and Figure 2 The product structure diagram is shown in the prior art. When opening the mold, the female mold shovel machine 01 is used to drive the female mold core to be pulled out upward, and then the male mold core fixing plate 02 is used to drive the male mold core to be pulled out downward, and then the ejector is used to eject the product. Figure 3 As shown in the figure, the core pulling mechanism of the male and female molds will increase the mold thickness and mold opening stroke, resulting in waste.

[0004] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a simplified male and female mold core-pulling mold structure. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a simplified male and female mold core-pulling mold structure, simplify the mold, make the male and female mold inserts into an integrated ejector, and separate the core-pulling outside the machine to reduce the cost, thus solving the problem of high cost when producing such products in small batches.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a simplified male and female mold core-pulling mold structure, the simplified male and female mold core-pulling mold structure includes a mold core, a male mold core, a female mold core and a push rod, the mold core is equipped with a male mold core, the male mold core adopts a split structure, the male mold core includes a lower male mold core and a side male mold core installed on the mold core, and a male mold insert connected to the lower male mold core, a female mold core is inserted laterally into the male mold insert, the female mold core and the side male mold core cooperate, and a push rod for lifting the male mold insert is inserted in the lower male mold core.

[0007] Preferably, a positioning hole is provided at the top of the lower male mold core, a positioning boss matching the positioning hole is provided at the lower part of the male mold insert, and a plane is provided on one side of the positioning hole and the positioning boss.

[0008] Preferably, the top surface of the side male mold core is provided with a special-shaped frustum, and the bottom surface of the female mold core is provided with a conical hole matching with the frustum.

[0009] Preferably, the male mold insert is provided with a lateral through hole for inserting the female model core, a groove for clamping the female model core is provided at the top of the lateral through hole, an anti-rotation plane is also provided on one side of the groove, and a plane matching the anti-rotation plane is cut on the head of the female model core.

[0010] Preferably, a material ejection boss is provided on the top of the ejector rod, and a material ejection groove cooperating therewith is provided on the lower end of the male mold insert.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The female model core and the male model core are fixed together, the female mold oblique extraction is cancelled, and the male model core is divided. After ejection, the product, the female model core, and part of the male model core are connected together. The product is not completely demolded, and the female model core and part of the male model core will be separated outside the machine. There is no need to make male and female mold core extraction mechanisms in the mold, which saves a lot of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the product structure.

[0014] Figure 2 This is a cross-sectional view of the product.

[0015] Figure 3 This is a schematic diagram of the existing mold structure.

[0016] Figure 4 It is a structural schematic diagram of a simplified male and female core-pulling mold structure.

[0017] Figure 5 It is a partial cross-sectional view of a simplified male and female core-pulling mold structure.

[0018] Figure 6 It is a partial structural schematic diagram of a simplified male and female core-pulling mold structure.

[0019] Figure 7 This is a state diagram of a machine with a simplified male and female core-pulling mold structure before ejection.

[0020] Figure 8 This is a state diagram of a machine with a simplified male and female core-pulling mold structure after ejection.

[0021] Fig. 9 The first demoulding state diagram is completed to remove the assembly.

[0022] Among them, 1. mold core, 2. male model core, 21. lower male model core, 210. positioning hole, 22. side male model core, 221. special-shaped frustum, 23. male mold insert, 230. positioning boss, 231. lateral through hole, 232. groove, 233. anti-rotation plane, 234. ejector groove, 3. female model core, 30. tapered hole, 4. ejector pin, 41. ejector boss. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figures 1 to 9 , the utility model embodiment includes:

[0025] A simplified male and female mold core-pulling mold structure, the simplified male and female mold core-pulling mold structure comprises a mold core 1, a male mold core 2, a female mold core 3 and a push rod 4, the mold core 1 is provided with a male mold core 2, the male mold core 2 adopts a split structure, the male mold core 2 comprises a lower male mold core 21 and a side male mold core 22 installed on the mold core 1, and a male mold insert 23 plugged and docked with the lower male mold core 21, the female mold core 3 is inserted laterally into the male mold insert 23, the female mold core 3 cooperates with the side male mold core 22 for product side cavity molding, and the lower male mold core 21 is provided with a push rod 4 for lifting the male mold insert 23.

[0026] A positioning hole 210 is provided at the top of the lower male mold core 21, and a positioning boss 230 cooperating with the positioning hole 210 is provided at the lower part of the male mold insert 23. A plane is provided on one side of the positioning hole 210 and the positioning boss 230 to limit rotation.

[0027] The top surface of the side male model core 22 is provided with a special-shaped frustum 221, and the bottom surface of the female model core 3 is provided with a conical hole 30 that cooperates with the frustum 221, which can quickly guide the positioning and ensure that the female model core 3 is accurately inserted into place. Since the side cavity of the product has an inclined section, the female model core 3 can only be placed at an angle, which causes the bottom surface of the female model core 3 to be an oblique section. If the female model core 3 rotates during mold closing, it will directly affect the docking of the female model core 3 and the side male model core 22. The special-shaped frustum 221 plays a guiding role and can prevent rotation to a certain extent.

[0028] The male mold insert 23 is provided with a lateral through hole 231 for inserting the female model core 3, and the top of the lateral through hole is provided with a groove 232 for clamping the female model core 3. An anti-rotation plane 233 is also provided on one side of the groove, and a plane matching the anti-rotation plane 233 is cut on the head of the female model core 3.

[0029] The top of the ejector rod 4 is provided with an ejector boss 41 , and the lower end of the male mold insert 23 is provided with an ejector groove 234 that cooperates with the ejector boss 41 .

[0030] The utility model simplifies the core-pulling mold structure of the male and female molds. Figure 7 The state of the machine before ejection; Figure 8 The ejector pin 4 is ejected forward under the ejection drive of the machine, and the male mold insert 23, the female mold core 3 and the product are ejected from the mold together. Fig. 9 To remove the assembly, the first demoulding is completed, and then the female mold core 3 is pulled out from the upper oblique direction on the machine, and the male mold insert 23 is pulled out from the lower direction on the machine, and the product core pulling is completed.

[0031] The utility model simplifies the core-pulling mold structure of male and female molds. The male and female mold inserts are made into an integrated ejection, and the core is pulled outside the machine. The mold structure is greatly simplified and can be formed on a smaller machine. Although the working procedures are increased, the mold cost and the production cost are reduced, and better benefits can still be generated, thus solving the problem of excessively high costs when such products are produced in small batches.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A simplified male and female core-pulling mold structure, characterized in that: It includes a mold core, a male mold core, a female mold core and a push rod. The mold core is installed with a male mold core, and the male mold core adopts a split structure. The male mold core includes a lower male mold core and a side male mold core installed on the mold core, and a male mold insert that is plugged and docked with the lower male mold core. A female mold core is laterally inserted in the male mold insert. The female mold core cooperates with the side male mold core. A push rod for lifting the male mold insert is inserted in the lower male mold core.

2. A simplified male and female core-pulling mold structure according to claim 1, characterized in that: A positioning hole is provided at the top of the lower male mold core, a positioning boss matched with the positioning hole is provided at the lower part of the male mold insert, and a plane is provided on one side of the positioning hole and the positioning boss.

3. A simplified male and female core-pulling mold structure according to claim 1, characterized in that: The top surface of the side male mold core is provided with a special-shaped frustum, and the bottom surface of the female mold core is provided with a conical hole matching with the frustum.

4. A simplified male and female core-pulling mold structure according to claim 1, characterized in that: The male mold insert is provided with a lateral through hole for inserting the female model core, the top of the lateral through hole is provided with a groove for clamping the female model core, one side of the groove is also provided with an anti-rotation plane, and the head of the female model core is cut with a plane that matches the anti-rotation plane.

5. The simplified male and female core-pulling mold structure according to claim 1 is characterized in that: A material ejection boss is provided on the top of the ejector rod, and a material ejection groove cooperating therewith is provided on the lower end of the male mold insert.

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