Mold assembly and injection mold with same

Abstract

The utility model discloses a mold assembly and an injection mold with the mold assembly, the mold assembly comprises a first mold core, a second mold core bearing a semi-finished product, a cooling assembly and an elastic assembly, and the second mold core is arranged opposite to the first mold core in the first direction. A part of the cooling assembly is arranged in the first mold core in a penetrating mode in the first direction. The elastic assembly is arranged between the cooling assembly and the first mold core. The first mold core drives the cooling assembly and the elastic assembly to move close to the second mold core in the first direction. According to the mold assembly, the first mold core drives the cooling assembly to move and approach the second mold core, and when the first mold core makes contact with the second mold core, the semi-finished product on the second mold core supports the cooling assembly, so that the cooling assembly compresses the elastic assembly; therefore, the cooling assembly is attached to the inner side of the semi-finished product under the action of the elastic assembly and cools the inner side of the semi-finished product, so that the temperature difference between metal on the inner side and metal on the outer side of the semi-finished product is adjusted, and the effect of improving the product quality is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of mold assemblies, and in particular to a mold assembly and an injection mold having the mold assembly. Background Art

[0002] In the production process, plastic needs to be injected into a semi-finished metal product, which is composed of two different metals on the outside and inside. When the hot plastic is injected into the semi-finished metal product using the existing mold assembly, the hot plastic contacts different metals respectively. Different metals are prone to deformation due to different thermal expansion coefficients. Different metals exert different forces on the plastic, causing the plastic to deform, resulting in reduced product quality. Utility Model Content

[0003] In view of this, it is necessary to provide a mold assembly that can adjust the deformation of different metals by cooling the metal inside the metal semi-finished product, thereby improving product quality.

[0004] The present application provides a mold assembly including a first mold core, a second mold core, a cooling assembly and an elastic assembly, wherein the second mold core is arranged opposite to the first mold core along a first direction. A portion of the cooling assembly is arranged through the first mold core along the first direction. The elastic assembly is arranged in the first mold core and between the cooling assembly and the first mold core. The first mold core drives the cooling assembly and the elastic assembly to approach the second mold core along the first direction until the first mold core and the cooling assembly contact the second mold core. The second mold core supports the cooling assembly to move relative to the first mold core along the first direction, and the cooling assembly compresses the elastic assembly.

[0005] The mold assembly of the above-mentioned embodiment is achieved by placing a metal semi-finished product on the second mold core. When the first mold core drives the cooling assembly to move toward the metal semi-finished product on the second mold core and the first mold core contacts the second mold core, the metal semi-finished product on the second mold core is supported by the cooling assembly to move relative to the first mold core along a first direction, and the cooling assembly compresses the elastic assembly, so that the cooling assembly moves toward the inside of the metal semi-finished product under the action of the elastic assembly, so that the cooling assembly cools the metal on the inside of the metal semi-finished product to adjust the temperature difference between the metal on the inside and outside of the metal semi-finished product, thereby achieving the purpose of adjusting the deformation of different metals, so that the forces exerted by different metals on the plastic are consistent, thereby achieving the effect of improving product quality.

[0006] In some embodiments, the cooling assembly includes a cooling block, and a protrusion is formed at one end of the cooling block close to the second mold core along the first direction. The first mold core is provided with a through slot for the cooling block to pass through along the first direction, and one end of the cooling block away from the protrusion along the first direction extends from the inside of the through slot to the outside of the through slot, and part of the protrusion is located in the through slot, and one end of the elastic assembly along the first direction is connected to the protrusion in the through slot. The first mold core is also provided with a limiting portion, and the limiting portion is located in one end of the through slot away from the second mold core along the first direction, and the other end of the elastic assembly along the first direction is connected to the limiting portion.

[0007] In the above embodiment, the elastic component acts on the protruding portion and the limiting portion respectively, so that the elastic component acts on the cooling block, thereby achieving the purpose of full contact between the cooling block and the metal semi-finished product.

[0008] In some embodiments, a cooling channel is provided in the cooling block; the mold assembly also includes a water transport assembly, which is located on the side of the first mold core away from the second mold core along the first direction, and the water transport assembly is connected to the cooling block, and is used to pass cooling medium into the cooling channel.

[0009] In the above embodiment, the cooling medium is introduced into the cooling block through the water transport component, so that the cooling block can cool the metal semi-finished product.

[0010] In some embodiments, a first through hole and a second through hole are provided on a side of the cooling block away from the protrusion along the first direction, and the first through hole and the second through hole are respectively connected to the cooling channel. A third through hole and a fourth through hole are provided on a side of the water transport component close to the cooling block along the first direction, and the third through hole is connected to the first through hole, and the second through hole is connected to the fourth through hole. The cooling medium flows from the third through hole to the first through hole in the water transport component, and after passing through the cooling channel, flows from the second through hole to the fourth through hole to the water transport component.

[0011] In the above embodiment, the first through hole is connected to the third through hole, and the second through hole is connected to the fourth through hole, so that the cooling medium circulates in the cooling block, thereby achieving the purpose of the cooling block continuously cooling the metal semi-finished product.

[0012] In some embodiments, a projection portion of the water transport component along the first direction is located outside the through groove.

[0013] In the above embodiment, the cooling assembly is limited by the water transport assembly to prevent the cooling assembly from falling off the first mold core, thereby achieving synchronous movement of the cooling assembly driven by the first mold core.

[0014] In some embodiments, the elastic component includes at least two compression springs, the cooling block is located between the at least two compression springs, one end of each compression spring along the first direction is connected to the protrusion in the through groove, and the other end of each compression spring along the first direction is connected to the limiting portion.

[0015] In the above embodiment, a plurality of compression springs are provided so that the cooling block can act evenly on the metal semi-finished product, which helps to improve the uniformity of cooling the metal semi-finished product by the cooling block.

[0016] In some embodiments, the mold assembly further includes a heat insulation assembly, which is disposed on the cooling assembly and is located between the first mold core and the cooling assembly.

[0017] In the above embodiment, the cooling component is insulated by the heat insulation component to reduce the heat conduction from the outside to the cooling component, thereby achieving the purpose of the cooling component accurately cooling the metal semi-finished product.

[0018] In some embodiments, a temperature regulating component is provided in the first mold core and / or the second mold core, and the temperature regulating component is used to regulate the temperature of the first mold core or the second mold core.

[0019] In the above embodiment, the first mold core and the second mold core are stably adjusted by the temperature adjustment component, so that the plastic can be smoothly injected into the metal semi-finished product and the plastic in the metal semi-finished product can be quickly cooled.

[0020] In some embodiments, the temperature control component includes a temperature control pipeline, and a temperature control medium flows in the temperature control pipeline.

[0021] In the above embodiments, the temperature control effect of the temperature control component is improved by adjusting the temperature using a medium such as oil with a wide temperature range.

[0022] An injection mold comprises the above mold assembly.

[0023] The above-mentioned injection mold, by adopting the mold assembly, helps to improve the production efficiency and yield rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of metal semi-finished products.

[0025] Figure 2 A schematic diagram of a partial structural decomposition of a mold assembly provided in an embodiment of the present application.

[0026] Figure 3 for Figure 2 Schematic diagram of the structure of the mold assembly.

[0027] Figure 4 for Figure 3 A cross-sectional view of the mold assembly along line IV-IV.

[0028] Figure 5 for Figure 2 A schematic structural diagram of the first mold core of the mold assembly.

[0029] Figure 6for Figure 2 Schematic diagram of the structure of the cooling assembly of the mold assembly.

[0030] Main component symbols

[0031] Mold assembly 10

[0032] Second mold 11

[0033] Cooling assembly 12

[0034] Cooling block 121

[0035] Cooling channel 1210

[0036] Protrusion 1211

[0037] First through hole 1212

[0038] Second through hole 1213

[0039] First mold 13

[0040] Through slot 131

[0041] Limiting part 132

[0042] Elastic component 14

[0043] Compression spring 141

[0044] Water transport component 15

[0045] The third through hole 151

[0046] Fourth through hole 152

[0047] Temperature control component 16

[0048] Temperature control pipeline 161

[0049] Thermal insulation components 17

[0050] Metal semi-finished products 20

[0051] Inside 21

[0052] Outer 22

[0053] First direction X DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0055] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0056] The terms "first", "second", etc. are only used to distinguish different objects and shall not be understood as indicating or implying relative importance or implying the quantity, specific order or primary and secondary relationship of the indicated technical features.

[0057] It should be recognized that the dimensions of the structures shown in the drawings are given for better understanding and more convenient description, and the present application is not limited to the dimensions shown in the drawings. In order to make the present application clear, elements not related to the description are omitted from the details of this specification.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0059] Some embodiments of the present application will be described below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0060] The present application embodiment provides an injection mold (not shown), see Figure 1 and Figure 2 The injection mold includes a mold assembly 10. Plastic is injected into a metal semi-finished product 20 through the mold assembly 10 to achieve product processing. The outer side 22 and the inner side 21 of the metal semi-finished product 20 are respectively composed of metals of different materials.

[0061] See also Figure 2 and Figure 3The mold assembly 10 includes a first mold core 13, a second mold core 11, a cooling assembly 12, and an elastic assembly 14. The second mold core 11 and the first mold core 13 are arranged alternately along the first direction X, the second mold core 11 is located below the first mold core 13 along the first direction X, a part of the cooling assembly 12 passes through the first mold core 13 along the first direction X, and the elastic assembly 14 is arranged in the first mold core 13 and between the first mold core 13 and the cooling assembly 12. When the mold assembly 10 is working, the metal semi-finished product 20 is placed on the top of the second mold core 11 along the first direction X. The first mold core 13 moves along the first direction X under the action of external force, and the first mold core 13 drives the cooling component 12 to move closer to the second mold core 11. When the first mold core 13 and the second mold core 11 are in contact, the cooling component 12 is in contact with the inner side 21 of the metal semi-finished product 20 along the first direction X, so that the cooling component 12 cools the inner side 21 of the metal semi-finished product 20 to reduce the difference in deformation between the inner side 21 and the outer side 22, so as to achieve consistency in the forces exerted by different metals on the plastic, thereby improving product quality.

[0062] The first direction X is a vertical direction.

[0063] The first mold core 13 drives the cooling assembly 12 away from or close to the second mold core 11 under the action of external force, so as to facilitate the replacement of the metal semi-finished product 20 on the second mold core 11 and achieve the effect of continuous processing of the metal semi-finished product 20. The first mold core 13 also presses the finished product on the second mold core 11 under the action of external force to fix the metal semi-finished product 20.

[0064] The first mold core 13 is provided with a through groove 131 along the first direction X, and the cooling component 12 is movably inserted into the through groove 131 along the first direction X. The elastic component 14 is arranged in the through groove 131 and is located between the first mold core 13 and the cooling component 12. When the first mold core 13 is driven by an external force to move the cooling component 12 toward the second mold core 11 until the first mold core 13 contacts the second mold core 11 and the metal semi-finished product 20, the metal semi-finished product 20 supports the cooling component 12 protruding out of the through groove 131 in the through groove 131 to support the cooling component 12 to move relative to the first mold core 13 along the first direction X, so that the cooling component 12 moves from the outside of the through groove 131 to the inside of the through groove 131 and compresses the elastic component 14. The compressed elastic component 14 applies an elastic force along the first direction X to the cooling component 12, so that the cooling component 12 tends to move toward the metal semi-finished product 20, thereby increasing the pressure between the cooling component 12 and the metal semi-finished product 20, so as to reduce the gap between the cooling component 12 and the inner side 21 of the metal semi-finished product 20, so that the cooling component 12 is in full contact with the inner side 21 of the metal semi-finished product 20 along the first direction X, so as to improve the heat dissipation effect of the cooling component 12 on the inner side 21 of the metal semi-finished product 20, so as to achieve the purpose of reducing the difference in deformation of the two metals on the inner side 21 and the outer side 22.

[0065] In some embodiments, see Figure 4 The first mold core 13 and the second mold core 11 are respectively provided with a temperature regulating component 16, which is a temperature regulating pipeline 161. The temperature of the first mold core 13 and the second mold core 11 is regulated by introducing a temperature regulating medium such as hydraulic oil of different temperatures into the temperature regulating pipeline 161. Before the injection mold processes the semi-finished metal product 20, the temperature regulating medium is introduced into the first mold core 13 and the second mold core 11 respectively through the temperature regulating component 16, and the first mold core 13 and the second mold core 11 are heated and regulated to increase the temperature of the first mold core 13 and the second mold core 11, so that when the plastic is injected into the semi-finished metal product 20, the temperature of the plastic can be kept stable, which helps to reduce the risk of cold plastic causing the injection mold to be blocked, thereby achieving the purpose of improving the stability of product production. After the injection mold processes the metal semi-finished product 20 into a product, a temperature regulating medium is introduced into the first mold core 13 and the second mold core 11 respectively through the temperature regulating component 16, and the first mold core 13 and the second mold core 11 are cooled and regulated to reduce the temperature of the first mold core 13 and the second mold core 11, thereby cooling the product so that the plastic can be cooled quickly, thereby achieving the purpose of improving product production efficiency.

[0066] In other embodiments, the temperature adjustment component 16 is a heating wire and a semiconductor cooling sheet.

[0067] In some embodiments, see Figures 2 to 4A heat insulation component 17 is fixedly provided on the outer surface of the cooling component 12. The heat insulation component 17 is located between the first mold core 13 and the cooling component 12 in the through groove 131 to reduce the heat conduction effect between the first mold core 13 and the cooling component 12, thereby reducing the influence of the outside world on the temperature of the cooling component 12 to improve the cooling accuracy of the cooling component 12.

[0068] In some embodiments, the thermal insulation component 17 is a thermal insulation sleeve (not labeled) or a thermal insulation layer (not labeled) disposed on the outer surface of the cooling component 12 .

[0069] In some embodiments, see Figure 5 and Figure 6 The cooling assembly 12 includes a cooling block 121 inserted into the through slot 131. A protrusion 1211 is formed at one end of the cooling block 121 facing the second mold core 11 along the first direction X. The protrusion 1211 is partially located in the through slot 131. The end of the cooling block 121 away from the protrusion 1211 along the first direction X extends from the inside of the through slot 131 to the outside of the through slot 131. The first mold core 13 is also provided with a limiting portion 132. The limiting portion 132 is located in the end of the through slot 131 away from the second module. One end of the elastic assembly 14 along the first direction X is connected to the limiting portion 132, and the other end of the elastic assembly 14 along the first direction X is connected to the protrusion 1211 in the through slot 131. When the first mold core 13 is driven by an external force to move the cooling block 121 and the elastic component 14 along the first direction X close to the second mold core 11, and the metal semi-finished product 20 on the top of the second mold core 11 contacts and supports the cooling block 121, the cooling block 121 drives the protrusion 1211 to move relative to the first mold core 13 under the support of the metal semi-finished product 20, so that the protrusion 1211 moves from the outside of the through groove 131 to the inside of the through groove 131 and compresses the elastic component 14. The elastic component 14 applies an elastic force along the first direction X to the protrusion 1211, so that the protrusion 1211 drives the cooling block 121 to move close to the metal semi-finished product 20, thereby increasing the pressure between the cooling block 121 and the metal semi-finished product 20, so as to reduce the gap between the cooling component 12 and the inner side 21 of the metal semi-finished product 20, so as to achieve the effect of full contact between the cooling block 121 and the metal semi-finished product 20, and achieve the purpose of improving the cooling effect of the cooling block 121.

[0070] In some embodiments, see Figure 2The elastic component 14 includes at least two compression springs 141, and the at least two compression springs 141 are arranged in a ring shape. The portion of the cooling block 121 away from the protrusion 1211 along the first direction X is located between the at least two compression springs 141 in a ring shape. One end of each compression spring 141 along the first direction X is connected to the protrusion 1211 in the through groove 131, and the other end of each compression spring 141 along the first direction X is connected to the limiting portion 132. Through the arrangement of multiple compression springs 141, the compressed elastic component 14 can act uniformly on the protrusion 1211 along the first direction X, so that the protrusion 1211 drives the cooling block 121 to act uniformly on the metal semi-finished product 20, which helps to improve the uniformity of cooling the metal semi-finished product 20 by the cooling block 121.

[0071] In some embodiments, see Figure 3 and Figure 4 The mold assembly 10 further includes a water transport assembly 15, which is located on the side of the first mold core 13 away from the second mold core 11 along the first direction X. The water transport assembly 15 is connected to the cooling block 121 located outside the through groove 131, and a third through hole 151 and a fourth through hole 152 are provided at the bottom of the water transport assembly 15 along the first direction X. A cooling channel 1210 is provided in the cooling block 121, and a first through hole 1212 and a second through hole 1213 are provided on the side of the cooling block 121 away from the second mold core 11 along the first direction X, which are respectively connected to the cooling channel 1210. The first through hole 1212 is connected to the third through hole 151, and the second through hole 1213 is connected to the fourth through hole 152, so that the cooling medium (not shown) in the water transport assembly 15 flows from the third through hole 151 along the first through hole 1212 into the cooling channel 1210. The cooling medium flowing through the cooling channel 1210 flows from the second through hole 1213 along the fourth through hole 152 to the water transport component 15, so that the cooling medium circulates in the cooling block 121 and the cooling block 121 continuously cools the metal semi-finished product 20.

[0072] In some embodiments, the water transport component 15 is a pipe or a geometric component with a pipeline disposed therein.

[0073] In some embodiments, see Figure 3 and Figure 4, the projection of the water transport component 15 along the first direction X is located outside the through groove 131. When the first mold core 13 is moved away from the second mold core 11 along the first direction X by an external force, the water transport component 15 contacts the first mold core 13, so that the first mold core 13 supports the water transport component 15, so that the water transport component 15 limits the cooling block 121 along the first direction X, so as to reduce the risk of the cooling block 121 falling off from the first mold core 13 along the first direction X, and achieve the purpose of synchronous movement of the cooling block 121 and the first mold core 13. At the same time, the water transport component 15 and the cooling block 121 are detachably connected. When the cooling block 121 needs to be replaced, the water transport component 15 is separated from the cooling block 121, so that the cooling block 121 moves from the inside of the through groove 131 to the outside of the through groove 131 in the direction of the protrusion 1211 from the water transport component 15, so as to achieve the purpose of removing the cooling block 121 from the first mold core 13.

[0074] The working process of a mold assembly 10 of the present application is as follows: by placing a metal semi-finished product 20 on the second mold core 11, the first mold core 13 drives the cooling assembly 12 to move along the first direction X toward the second mold core 11 under the action of external force. When the first mold core 13 contacts the second mold core 11, the metal semi-finished product 20 on the second mold core 11 supports the cooling assembly 12 to move along the first direction X relative to the first mold core 13, and causes the cooling assembly 12 to compress the elastic assembly 14, so that the cooling assembly 12 has a tendency to move close to the inner side 21 of the metal semi-finished product 20 under the elastic action of the elastic assembly 14, so as to increase the pressure between the cooling block 121 and the metal semi-finished product 20, thereby reducing the gap between the cooling assembly 12 and the inner side 21 of the metal semi-finished product 20. The cooling medium is introduced into the cooling component 12 through the water transport component 15 so that the cooling medium in the cooling component 12 absorbs heat, and the cooling component 12 cools the metal on the inner side 21 of the metal semi-finished product 20 to adjust the temperature difference between the metal on the inner side 21 and the metal on the outer side 22 of the metal semi-finished product 20, thereby achieving the purpose of adjusting the deformation of different metals, so that the forces exerted by different metals on the plastic are consistent, thereby achieving the effect of improving product quality.

[0075] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. As long as they are within the essential scope of the present application, appropriate changes and modifications to the above embodiments are within the scope disclosed in the present application.

Claims

1. A mold assembly, characterized in that: The mold assembly comprises: First Model Ren; a second mold core, the second mold core being arranged opposite to the first mold core along a first direction; A cooling assembly, a portion of which passes through the first mold core along the first direction; An elastic component, the elastic component is arranged in the first mold core and between the cooling component and the first mold core; The first mold core drives the cooling component and the elastic component to move close to the second mold core along the first direction until the first mold core and the cooling component are in contact with the second mold core respectively; The second mold core supports the cooling component, the cooling component moves relative to the first mold core along the first direction, and the cooling component compresses the elastic component.

2. The mold assembly according to claim 1, characterized in that: The cooling assembly comprises a cooling block, and a protrusion is formed at one end of the cooling block close to the second mold core along the first direction; Along the first direction, the first mold core is provided with a through slot for partially inserting the cooling block, one end of the cooling block away from the protrusion along the first direction extends from the inside of the through slot to the outside of the through slot, and part of the protrusion is located in the through slot; One end of the elastic component along the first direction is connected to the protrusion in the through slot; The first mold core is further provided with a limiting portion, and the limiting portion is located in an end of the through slot away from the second mold core along the first direction; The other end of the elastic component along the first direction is connected to the limiting portion.

3. The mold assembly according to claim 2, characterized in that: A cooling channel is provided in the cooling block; the mold assembly also includes a water transport assembly, which is located on the side of the first mold core away from the second mold core along the first direction, and is connected to the cooling block outside the through groove, and is used to introduce cooling medium into the cooling channel.

4. The mold assembly according to claim 3, characterized in that: A first through hole and a second through hole are provided on a side of the cooling block away from the protrusion along the first direction, and the first through hole and the second through hole are respectively connected to the cooling channel; The water transport component is provided with a third through hole and a fourth through hole on one side close to the cooling block along the first direction, the third through hole is communicated with the first through hole, and the second through hole is communicated with the fourth through hole; The cooling medium flows from the third through hole to the first through hole in the water transport component, passes through the cooling channel, and then flows from the second through hole to the fourth through hole toward the water transport component.

5. The mold assembly according to claim 3, characterized in that: The projection portion of the water transport component along the first direction is located outside the through groove.

6. The mold assembly according to claim 2, characterized in that: The elastic component includes at least two compression springs, the cooling block is located between the at least two compression springs, one end of each compression spring along the first direction is connected to the protrusion in the through groove, and the other end of each compression spring along the first direction is connected to the limiting portion.

7. The mold assembly according to claim 1, characterized in that: The mold assembly also includes a heat insulation assembly, which is arranged on the cooling assembly and located between the first mold core and the cooling assembly.

8. The mold assembly according to claim 1, characterized in that: The first mold core and / or the second mold core are both provided with a temperature regulating component, and the temperature regulating component is used to regulate the temperature of the first mold core or the second mold core.

9. The mold assembly according to claim 8, characterized in that: The temperature control component comprises a temperature control pipeline, and a temperature control medium flows in the temperature control pipeline.

10. An injection mold, characterized in that: Comprising the mold assembly according to any one of claims 1 to 9.

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