Injection mold with shock absorption and noise reduction functions

Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold with shock absorption and noise reduction, which comprises a mold foot, a male mold plate, a female mold plate, an injection port and a positioning group, the male mold plate is connected to the top of the mold foot, the female mold plate is connected to the top of the male mold plate, and the injection port is inserted into the top of the female mold plate. The positioning sets are installed outside the male mold plate and the female mold plate at equal intervals, the air bag mechanisms are inserted outside the male mold plate and the female mold plate at equal intervals, the opposite air bag mechanisms between the male mold plate and the female mold plate make contact, and each air bag mechanism comprises a hollow frame and a second protruding block. According to the injection mold with the shock absorption and noise reduction functions, the mold cores are collided to generate vibration, then bubbles in injection molding liquid are removed, and therefore the quality of injection molding finished products is greatly improved, meanwhile, the air bag mechanism can be driven without additional driving, needed installation workpieces are reduced, meanwhile, energy loss is reduced, and the injection mold is environmentally friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with vibration reduction and noise reduction functions. Background Art

[0002] An injection mold is a mold used to produce injection molded products. An injection mold is usually composed of a mold base, a mold core, a mold cavity and other components. The molten plastic material is injected into the mold by an injection molding machine, and the desired plastic product is formed after cooling. For example, the high-strength injection mold proposed in Chinese Patent 202321082932.6 ensures the product precision and strength of the injection molded product.

[0003] As shown in the above scheme, before injection molding, the male and female templates at the upper and lower ends of the device need to be molded together, and the male and female templates are positioned and molded together through positioning columns and positioning blocks. However, the male and female templates will produce a large collision sound during the mold closing, and the vibration generated during the collision may cause an impact on the internal mold core. At the same time, when the mold is injected, the injection may produce bubbles inside the mold core, which may then reduce the quality of the finished product after compression molding. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an injection mold with shock absorption and noise reduction to solve the technical problems that the male and female templates mentioned above will produce a loud collision sound during mold closing, and the vibration generated during the collision may cause an impact on the internal mold core. At the same time, during injection molding, the mold may produce bubbles inside the mold core, which may then reduce the quality of the finished product after the mold is formed.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an injection mold with shock absorption and noise reduction, comprising: a mold foot, a male mold plate, a female mold plate, an injection port and a positioning group, the male mold plate is connected to the top of the mold foot, the female mold plate is connected to the top of the male mold plate, the injection port is inserted in the top of the female mold plate, and the positioning group is installed at equal intervals on the outside of the male mold plate and the female mold plate.

[0008] The outsides of the male template and the female template are evenly spaced and provided with airbag mechanisms, and the airbag mechanisms facing each other between the male template and the female template are in contact.

[0009] The airbag mechanism includes a hollow frame and a second protrusion, both ends of the hollow frame are connected to a transverse frame, the inner top of the hollow frame is fixedly connected to an airbag group, the interior of the transverse frame is slidably connected to a slide plate, the exterior of the slide plate is fixedly connected to a first protrusion, and the second protrusion is connected to the mold core inside the male template and the female template.

[0010] Preferably, the outside of the male template and the female template are connected with a lifting ring, and the lifting ring is connected to the male template or the female template by bolts, and the lifting ring facilitates external equipment to drive the male template and the female template to move.

[0011] Preferably, a sealing plate is connected to the bottom of the mold foot, and ejector pins are connected to the inside of the mold foot at equal intervals. The sealing plate can support the bottom of the mold foot, and the ejector pins can eject the finished product after injection molding.

[0012] Preferably, a copper plate is fixedly connected to the front side of the hollow frame, and the copper plate is connected to the mold core inside the male template or the female template, and the back side of the copper plate is in contact with the front side of the airbag group. The copper plate can transfer the heat in the mold core to the outside of the airbag group, thereby causing the airbag group to expand thermally.

[0013] Preferably, a spring is fixedly connected inside the transverse frame, and the spring is connected to the slide plate, and the spring can drive the slide plate to return to its original position after movement.

[0014] Preferably, the airbag group includes a main airbag, the top of the main airbag is connected to the inner top of the hollow frame, both ends of the main airbag are connected to auxiliary airbags, and the end of the auxiliary airbag away from the main airbag is connected to the skateboard. The main airbag of the airbag group can cushion the male template and the female template, and the auxiliary airbag can be expanded and contracted to drive the skateboard to move through thermal expansion and contraction.

[0015] Preferably, the positioning group includes a positioning block, and both ends of the positioning block are in contact with the male template and the female template respectively, and positioning pins are inserted at both ends of the front side of the positioning hole respectively, and the positioning group can lock the male template and the female template.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides an injection mold with vibration reduction and noise reduction, which has the following beneficial effects:

[0018] The injection mold with shock absorption and noise reduction has the function of weakening the impact force generated by the mold closing by the added airbag mechanism through the deformation ability when the mother template and the male template are closed, and then the vibration between the mother template and the male template is cushioned, and the noise generated by the impact is reduced to achieve the purpose of noise reduction. At the same time, when the mother template and the male template are injection molded, the temperature of the injection liquid causes the mold cores to vibrate, and then the bubbles in the injection liquid are removed, thereby greatly improving the quality of the injection molded product. At the same time, the airbag mechanism does not need additional driving energy to be driven, thereby reducing the required installation workpieces, while reducing energy loss, and being green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front schematic diagram of the utility model;

[0020] Figure 2 This is a front view of the airbag mechanism of the utility model;

[0021] Figure 3 This is a top cross-sectional view of the airbag mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the back side of the airbag mechanism of the utility model.

[0023] In the figure: 1. mold foot; 11. closing plate; 12. ejector pin; 2. male mold plate; 21. lifting ring; 3. female mold plate; 4. injection port; 5. positioning group; 6. airbag mechanism; 61. hollow frame; 611. copper plate; 62. cross frame; 63. airbag group; 64. slide plate; 641. spring; 65. first protrusion; 66. second protrusion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution, please refer to Figure 1 and Figure 2 , an injection mold with shock absorption and noise reduction, comprising: a mold foot 1, a male mold plate 2, a female mold plate 3, an injection port 4 and a positioning group 5. This scheme is a structural improvement of the non-electronic component part on the basis of the injection mold of the prior art, wherein the mold foot 1, the male mold plate 2, the female mold plate 3, the injection port 4 and the positioning group 5 are common injection mold products that have been promoted in the prior art. The mold foot 1 can support the ejector pin 12 and the male mold plate 2 and the female mold plate 3. The male mold plate 2 and the female mold plate 3 can be molded together for injection molding. The injection port 4 can be used to inject injection liquid into the interior of the female mold plate 3. The temperature of the injection liquid in the prior art is usually between 150 and 320 degrees Celsius. The male mold plate 2 and the female mold plate 3 are common molds in the prior art and are equipped with mold cores inside.

[0026] The outside of the male template 2 and the female template 3 are both connected with a lifting ring 21, and the lifting ring 21 is connected to the male template 2 or the female template 3 by bolts. The lifting ring 21 facilitates external equipment to drive the male template 2 and the female template 3 to move. The bottom of the mold foot 1 is connected with a closing plate 11, and the inside of the mold foot 1 is evenly connected with ejector pins 12. The closing plate 11 can support the bottom of the mold foot 1, and the ejector pins 12 can eject the finished product after injection molding.

[0027] The male template 2 is connected to the top of the mold foot 1, the female template 3 is connected to the top of the male template 2, the injection port 4 is inserted at the top of the female template 3, and the positioning group 5 is installed at equal intervals on the outside of the male template 2 and the female template 3. The positioning group 5 includes a positioning block, and the two ends of the positioning block are respectively in contact with the male template 2 and the female template 3, and the two ends of the front of the positioning hole are respectively inserted with positioning pins. The positioning group 5 can lock the male template 2 and the female template 3.

[0028] Airbag mechanisms 6 are inserted at equal intervals outside the male mold plate 2 and the female mold plate 3 , and the airbag mechanisms 6 facing each other between the male mold plate 2 and the female mold plate 3 are in contact.

[0029] See also Figure 3 and Figure 4 The airbag mechanism 6 includes a hollow frame 61 and a second protrusion 66. The hollow frame 61 can support the airbag group 63. The front of the hollow frame 61 is fixedly connected with a copper plate 611. The copper plate 611 is connected to the mold core inside the male template 2 or the female template 3. The back of the copper plate 611 contacts the front of the airbag group 63. The copper plate 611 can transfer the heat in the mold core to the outside of the airbag group 63, thereby causing the airbag group 63 to expand thermally.

[0030] Both ends of the hollow frame 61 are connected to a transverse frame 62, which can guide the slide 64. A spring 641 is fixedly connected inside the transverse frame 62, and the spring 641 is connected to the slide 64. The spring 641 can drive the slide 64 to return after movement. An airbag group 63 is fixedly connected to the inner top of the hollow frame 61. The interior of the airbag group 63 can be filled with safe gases that are easy to expand and contract with heat, such as air, oxygen, hydrogen, carbon dioxide, etc.

[0031] The airbag group 63 includes a main airbag, which is confined inside the hollow frame 61, and the bottom of the main airbag protrudes outside the hollow frame 61, the top of the main airbag is connected to the inner top of the hollow frame 61, and both ends of the main airbag are connected to auxiliary airbags, and the end of the auxiliary airbag away from the main airbag is connected to the slide plate 64. The main airbag of the airbag group 63 can cushion the male template 2 and the female template 3, and the auxiliary airbag can be retracted to drive the slide plate 64 to move through thermal expansion and contraction. The interior of the cross frame 62 is slidably connected to the slide plate 64, and the first protrusion 65 can install the first protrusion 65. The outside of the slide plate 64 is fixedly connected to the first protrusion 65, and the first protrusion 65 can drive the second protrusion 66 to move, and the second protrusion 66 is connected to the mold core inside the male template 2 and the female template 3.

[0032] In this scheme, the female template 3 and the male template 2 are first molded together, and the female template 3 and the male template 2 are positioned by the positioning group 5. When the female template 3 and the male template 2 are molded together, the airbag mechanisms 6 inside the two sides will be contacted first. When the airbag group 63 inside the airbag mechanism 6 is in contact, it uses its own deformation ability to reduce shock, and then weakens the energy generated by the collision between the female template 3 and the male template 2, so as to achieve the purpose of noise reduction and shock absorption. At the same time, injection molding is performed in the mold core inside the male template 2 and the female template 3 through the injection port 4. When the injection molding liquid enters the mold core, the temperature of the injection molding liquid is The gas inside the airbag group 63 is activated, and then the airbag group 63 is expanded, the two ends of the airbag group 63 are extended, and then the slide plate 64 is pushed to move, and then the first protrusion 65 and the second protrusion 66 are rubbed. The friction force will hinder the relative movement between the first protrusion 65 and the second protrusion 66, resulting in the energy between the first protrusion 65 and the second protrusion 66 being converted into vibration energy. The bubbles in the injection liquid inside the mold core are removed by vibration, and then the quality of the injection molded product is improved. After the injection molding is completed, the male template 2 and the female template 3 are opened, and the finished product is ejected by the ejector pin 12 to complete the processing.

[0033] When the female template 3 and the male template 2 are closed, the added airbag mechanism 6 weakens the impact force generated by the closing of the mold through its deformation ability, and then cushions the vibration between the female template 3 and the male template 2, while reducing the noise generated by the impact to achieve the purpose of noise reduction. At the same time, when the female template 3 and the male template 2 are injection molded, the temperature of the injection molding liquid causes the mold cores to vibrate, and then the bubbles inside the injection molding liquid are removed, thereby greatly improving the quality of the injection molded product. At the same time, the airbag mechanism 6 does not require additional driving energy to be driven, thereby reducing the required installation workpieces, while reducing energy loss and being green and environmentally friendly.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold with vibration reduction and noise reduction, comprising: The mold foot, the male mold plate, the female mold plate, the injection port and the positioning group are characterized in that: the male mold plate is connected to the top of the mold foot, the female mold plate is connected to the top of the male mold plate, the injection port is inserted at the top of the female mold plate, and the positioning group is installed at equal intervals outside the male mold plate and the female mold plate; Airbag mechanisms are inserted at equal intervals outside the male template and the female template, and the airbag mechanisms facing each other between the male template and the female template are in contact; The airbag mechanism includes a hollow frame and a second protrusion. Both ends of the hollow frame are connected to a transverse frame. The inner top of the hollow frame is fixedly connected to the airbag group. The interior of the transverse frame is slidably connected to a slide plate. The exterior of the slide plate is fixedly connected to the first protrusion. The second protrusion is connected to the mold core inside the male template and the female template.

2. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: The outsides of the male template and the female template are both connected with lifting rings, and the lifting rings are connected to the male template or the female template through bolts.

3. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: The bottom of the mold foot is connected with a sealing plate, and the inside of the mold foot is connected with ejector pins at equal intervals.

4. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: The front side of the hollow frame is fixedly connected with a copper plate, the copper plate is connected with the mold core inside the male mold plate or the female mold plate, and the back side of the copper plate is in contact with the front side of the airbag assembly.

5. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: A spring is fixedly connected inside the transverse frame, and the spring is connected to the slide plate.

6. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: The airbag group comprises a main airbag, the top of which is connected to the inner top of the hollow frame, both ends of the main airbag are connected to auxiliary airbags, and one end of the auxiliary airbag away from the main airbag is connected to the slide plate.

7. The injection mold with vibration reduction and noise reduction according to claim 1, characterized in that: The positioning group comprises a positioning block, and two ends of the positioning block are respectively in contact with the male template and the female template, and two ends of the front side of the positioning hole are respectively inserted with positioning pins.

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