Vibration reduction injection mold

Abstract

The utility model relates to the technical field of automobile filter element machining, and discloses a vibration reduction injection mold which comprises a lower mold base, a stand column is arranged at the top of the lower mold base, an upper mold base is arranged at the top of the stand column, and an injection mold body is arranged at the top of the lower mold base. According to the vibration reduction injection mold, the elastic connecting assembly is additionally arranged outside the upper mold, the top end of the elastic connecting assembly is connected with the upper mold base, and the elastic connecting assembly is arranged on the outer side of the lower mold base in cooperation with the hydraulic vibration reduction mechanism; in the process that the driving device drives the upper mold to ascend, the elastic connecting assembly on the outer side of the upper mold plays an elastic traction role on the upper mold, meanwhile, the hydraulic vibration reduction mechanism provides a good elastic vibration reduction effect for demolding of the upper mold through hydraulic stretching of the hydraulic vibration reduction mechanism and under the cooperation of the elastic limiting effect, and therefore the structure of the upper mold is optimized, and the production efficiency is improved. And in the moving process, a good vibration reduction effect can be achieved during demolding of the injection mold through the up-and-down double elastic traction and limiting effects.

Description

Technical Field

[0001] This utility model belongs to the field of automotive filter processing technology, and in particular relates to a vibration damping injection mold. Background Technology

[0002] Injection molds are tools used for molding plastics and are widely used in industries such as electronics, automobiles, and home appliances. They are key process equipment for achieving large-scale production of plastic products. Injection molding is a common thermoplastic processing method widely used in industrial manufacturing, but vibrations generated during the mold opening stage can seriously affect product quality.

[0003] An existing patent (publication number: CN217169527U) discloses an injection mold, particularly an injection mold with shock absorption function. It provides an easy-to-use injection mold with shock absorption function. The injection mold with shock absorption function includes a base, a first mold, fixing rods, and a second mold. The first mold is connected to the top of the base. Fixing rods are connected to the four corners of the top of the first mold. The second mold is slidably connected between the tops of the four fixing rods. A feed port is opened at the top of the second mold. First springs are sleeved on the outer sides of the four fixing rods, and the two ends of the four first springs are respectively connected to the four corners of the top of the first mold and the four corners of the bottom of the second mold.

[0004] To address the vibration issues caused by mold opening, the industry typically employs several conventional methods: firstly, increasing the mold wall thickness to enhance overall rigidity; secondly, adding buffer devices such as flexible material layers like rubber pads as a transition medium to absorb impact energy. However, current buffering and vibration reduction methods each have their limitations and challenges, failing to fundamentally eliminate the probability of various adverse consequences caused by mold opening. Therefore, a vibration-damping injection mold is proposed to solve the aforementioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a vibration-damping injection mold with advantages such as better vibration reduction. It solves the limitations and challenges of the current buffering and vibration reduction methods pointed out in the aforementioned prior art, which fail to fundamentally and completely eliminate the probability of various adverse consequences caused by the mold opening action.

[0006] To achieve the above objectives, this application provides the following technical solution: a vibration-damping injection mold, comprising a lower mold base, a column at the top of the lower mold base, an upper mold base at the top of the column, an injection mold at the top of the lower mold base, a driving device fixedly connected to the top of the upper mold base, a connecting mechanism fixedly connected to the output end of the driving device, an upper mold at the bottom of the connecting mechanism, an elastic connecting component fixedly connected to the outer surface of the upper mold, the elastic connecting component being sleeved on the outside of the column, positioning components fixedly connected to both sides of the lower mold base, a hydraulic vibration damping mechanism provided on the inner wall of each positioning component, and the output end of the hydraulic vibration damping mechanism fixedly connected to both sides of the upper mold.

[0007] The above solution involves adding an elastic connecting component to the outside of the upper mold and connecting its top end to the upper mold base. A hydraulic damping mechanism is installed on the outside of the lower mold base. When the upper mold and injection mold complete injection molding and are demolded, the drive device causes the upper mold to rise, and the elastic connecting component on its outside provides elastic traction. Simultaneously, the hydraulic damping mechanism, through its own hydraulic extension and contraction combined with elastic restraint, provides good elastic damping during demolding. By optimizing the structure of the upper mold, it achieves better vibration damping during demolding through dual elastic traction and restraint during movement.

[0008] Furthermore, the driving device includes a driving cylinder, the output end of which is provided with a driving shaft, the connecting mechanism includes a connecting plate, a connecting column is fixedly connected to the bottom of the connecting plate, the driving shaft is fixedly connected to the connecting plate, and the upper mold is fixed to the bottom of the connecting plate.

[0009] The above scheme places the drive cylinder on top of the upper mold base. By activating the drive cylinder, the drive shaft can extend and retract to provide displacement driving force for the connecting plate. At the same time, the connecting column connects the upper mold below to provide a relatively stable connection, thereby indirectly providing the upper mold with a driving force that matches the injection mold.

[0010] Furthermore, the upper mold includes an upper mold body, and extension plates are fixedly connected to both sides of the upper mold body. The output end of the hydraulic damping mechanism is fixedly connected to the extension plates.

[0011] The above solution provides a connection bridge between the upper mold body and the hydraulic damping mechanism by setting extension plates on both sides. This allows the hydraulic damping mechanism to generate a push-pull driving force on the extension plates, thereby providing a better hydraulic damping effect for the upper mold body.

[0012] Furthermore, the elastic connection assembly includes an elastic connection plate, the top of which is fixedly connected to a first spring, the top of which is fixedly connected to the bottom of the upper mold base, and several sets of the elastic connection plate and the first spring are evenly distributed at the four corners of the upper mold body.

[0013] By connecting the first spring to the bottom of the upper mold base, when the upper mold body is driven to move vertically along the column, the elastic connecting plate cooperates with the first spring to provide elastic traction force to the upper mold body. In this way, when it rises and demolds, it can play a buffering role and reduce its vibration impact on the injection mold.

[0014] Furthermore, the positioning component includes a mounting plate, on the outer surface of which a positioning plate is fixedly connected, and the hydraulic vibration damping mechanism is located on the inner wall of the positioning plate.

[0015] The above solution involves installing and fixing the mounting plate to the lower mold base, allowing the positioning plate to extend to the outside of the lower mold base, thus providing a positioning and installation function for the hydraulic vibration damping mechanism.

[0016] Furthermore, the hydraulic vibration damping mechanism includes a hydraulic cylinder, inside which is a hydraulic piston rod. One end of the hydraulic piston rod is fixedly connected to a vibration damping spring, and the output end of the hydraulic piston rod is provided with a connecting block. The extension plate is fixedly connected to the connecting block.

[0017] The above solution utilizes a hydraulic cylinder shock absorber connected to an extension plate via a connecting block. When the upper mold body moves, the hydraulic piston rod works in conjunction with the damping spring. The damping generated by the hydraulic piston rod and the internal hydraulic oil suppresses the oscillations when the damping spring rebounds after absorbing shock, thus counteracting the impact force when the upper mold body moves. Combined with the combined action of the top first spring and the elastic connecting plate, it achieves a good vibration reduction effect, thereby reducing the adverse effects on the injection mold.

[0018] Furthermore, there are two sets of both the hydraulic cylinder and the hydraulic piston rod, and two sets of the positioning plate.

[0019] The above solution uses two sets of hydraulic cylinders and hydraulic piston rods to form a hydraulic shock absorber assembly, which can provide a balanced vibration reduction effect on both sides of the upper mold body, thus making its vibration reduction effect better.

[0020] Furthermore, a balance column is fixedly connected to the bottom of the lower mold base, and a rubber pad is fixedly connected to the bottom of the balance column.

[0021] The above solution increases the grip of the lower mold base by placing rubber pads at the bottom of multiple sets of balance columns, thus improving its bottom balance support and preventing vibration from affecting its support stability.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. This vibration-damping injection mold, by adding an elastic connecting component to the outside of the upper mold and connecting its top end to the upper mold base, and cooperating with a hydraulic vibration damping mechanism installed on the outside of the lower mold base, when the upper mold and the injection mold are demolded after injection, the drive device drives the upper mold to rise, and the elastic connecting component on its outside provides elastic traction. At the same time, the hydraulic vibration damping mechanism provides a good elastic vibration damping effect for the upper mold during demolding through its own hydraulic extension and contraction and elastic restraint. In this way, by optimizing the structure of the upper mold, it can achieve a better vibration damping effect during the demolding of the injection mold through the double elastic traction and restraint of the upper and lower parts during the movement.

[0024] 2. This vibration-damping injection mold uses a hydraulic cylinder vibration damper connected to an extension plate via a connecting block. When the upper mold body moves, the hydraulic piston rod works with the damping spring to suppress the oscillation when the damping spring rebounds after absorbing shock, thus counteracting the impact force when the upper mold body moves. In conjunction with the first spring at the top and the elastic connecting plate, it achieves a good vibration damping effect, thereby reducing the adverse effects on the injection mold. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the first spring of this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the drive cylinder of this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the hydraulic cylinder of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the bottom of the lower mold base of this utility model.

[0030] The markings in the diagram are as follows: 1. Lower mold base; 2. Column; 3. Upper mold base; 4. Injection mold; 5. Drive device; 6. Connecting mechanism; 7. Upper mold; 8. Elastic connecting assembly; 9. Positioning assembly; 10. Hydraulic vibration damping mechanism; 501. Drive cylinder; 502. Drive shaft; 601. Connecting plate; 602. Connecting column; 701. Upper mold body; 702. Extension plate; 801. Elastic connecting plate; 802. First spring; 901. Mounting plate; 902. Positioning plate; 1011. Hydraulic cylinder; 1012. Hydraulic piston rod; 1013. Vibration damping spring; 1014. Connecting block; 12. Balance column; 13. Rubber pad block. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 and Figure 2 This embodiment of a vibration-damping injection mold includes a lower mold base 1, a column 2 on the top of the lower mold base 1, an upper mold base 3 on the top of the column 2, an injection mold 4 on the top of the lower mold base 1, a driving device 5 fixedly connected to the top of the upper mold base 3, a connecting mechanism 6 fixedly connected to the output end of the driving device 5, an upper mold 7 at the bottom of the connecting mechanism 6, an elastic connecting component 8 fixedly connected to the outer surface of the upper mold 7, the elastic connecting component 8 being sleeved on the outside of the column 2, and positioning devices fixedly connected to both sides of the lower mold base 1. Both the inner walls of component 9 and positioning component 9 are equipped with hydraulic vibration damping mechanisms 10. The output ends of the hydraulic vibration damping mechanisms 10 are fixedly connected to both sides of the upper mold 7. By adding elastic connecting components 8 to the outside of the upper mold 7 and connecting their top ends to the upper mold base 3, and cooperating with the hydraulic vibration damping mechanisms 10 installed on the outside of the lower mold base 1, when the upper mold 7 and the injection mold 4 are demolded after injection molding, the elastic connecting components 8 on the outside of the upper mold 7 provide elastic traction during the upward movement of the upper mold 7 driven by the drive device 5. At the same time, the hydraulic vibration damping mechanism 10 provides a good elastic vibration damping effect for the demolding of the upper mold 7 through its own hydraulic extension and contraction and elastic restriction. In this way, by optimizing the structure of the upper mold 7, it can achieve a good vibration damping effect during the demolding of the injection mold through the double elastic traction and restriction effect of the upper and lower parts during the movement.

[0033] Please see Figure 1 and Figure 3The driving device 5 includes a driving cylinder 501, and a driving shaft 502 is provided at the output end of the driving cylinder 501. The connecting mechanism 6 includes a connecting plate 601, and a connecting column 602 is fixedly connected to the bottom of the connecting plate 601. The driving shaft 502 is fixedly connected to the connecting plate 601. The upper mold 7 is fixed to the bottom of the connecting plate 601. By placing the driving cylinder 501 on the top of the upper mold base 3, the driving shaft 502 can be extended and retracted by activating the driving cylinder 501 to provide displacement driving force for the connecting plate 601. At the same time, the connecting column 602 connects the upper mold 7 below to provide a relatively stable connection, thereby indirectly providing the upper mold 7 with a driving force that matches the injection mold 4.

[0034] Please see Figure 1 and Figure 2 The elastic connection component 8 includes an elastic connection plate 801. A first spring 802 is fixedly connected to the top of the elastic connection plate 801. The top of the first spring 802 is fixedly connected to the bottom of the upper mold base 3. Several sets of elastic connection plates 801 and first springs 802 are provided. Several elastic connection plates 801 and first springs 802 are evenly distributed at the four corners of the upper mold body 701. By connecting the first spring 802 to the bottom of the upper mold base 3, when the upper mold body 701 is driven to move vertically along the column 2, it provides elastic traction force to the upper mold body 701 through the cooperation of the elastic connection plate 801 and the first spring 802. In this way, when it rises and demolds, it can play a buffering role and reduce its vibration impact on the injection mold 4.

[0035] Please see Figure 1 , Figure 3 and Figure 4 The hydraulic damping mechanism 10 includes a hydraulic cylinder 1011, inside which is a hydraulic piston rod 1012. One end of the hydraulic piston rod 1012 is fixedly connected to a damping spring 1013, and the output end of the hydraulic piston rod 1012 is provided with a connecting block 1014. The extension plate 702 is fixedly connected to the connecting block 1014. Through the damping mechanism of the hydraulic cylinder 1011 and the connection between the connecting block 1014 and the extension plate 702, when the upper mold body 701 moves, the hydraulic piston rod 1012 and the damping spring 1013 cooperate to suppress the oscillation when the damping spring 1013 absorbs shock and rebounds, thereby counteracting the impact force when the upper mold body 701 moves. In conjunction with the top first spring 802 and the elastic connecting plate 801, it plays a good role in damping the mold, thereby reducing the adverse effects on the injection mold 4.

[0036] In this embodiment, a vibration-damping injection mold utilizes a drive cylinder 501 positioned on top of the upper mold base 3. Activating the drive cylinder 501 allows the drive shaft 502 to extend and retract, providing displacement driving force to the connecting plate 601. This indirectly provides driving force to the upper mold 7 to engage with the injection mold 4. Extension plates 702 are provided on both sides of the upper mold body 701, acting as a connecting bridge for the hydraulic vibration damping mechanism 10. When the upper mold body 701 is driven to move vertically along the column 2, it provides elastic traction force to the upper mold body 701 through the elastic connecting plate 801 and the first spring 802. This provides a buffering effect during its upward demolding, reducing the vibration impact on the injection mold 4. The hydraulic piston rod 1012 works in conjunction with the damping spring 1013. The damping generated by the hydraulic piston rod 1012 and the internal hydraulic oil suppresses the oscillation when the damping spring 1013 rebounds after absorbing shock, thus counteracting the impact force when the upper mold body 701 is displaced. Together with the first spring 802 at the top and the elastic connecting plate 801, it achieves a good vibration reduction effect, thereby reducing the adverse effects on the injection mold 4. The hydraulic shock absorber assembly is composed of two sets of hydraulic cylinders 1011 and hydraulic piston rod 1012, etc., and together with the action of multiple sets of elastic connecting plates 801 and the first spring 802, it provides a balanced vibration reduction effect on both sides of the upper mold body 701, thereby making its vibration reduction effect better.

[0037] It should be noted that...

[0038] The working principle of the above embodiments is as follows:

[0039] In use, the drive cylinder 501 drives the drive shaft 502 to extend and retract, driving the upper mold body 701 to rise and fall. The mounting plate 901 is fixed to the lower mold base 1, allowing the positioning plate 902 to extend to the outside of the lower mold base 1, providing a positioning position for the hydraulic cylinder 1011. The first spring 802 is connected to the bottom of the upper mold base 3, so that when the upper mold body 701 is driven to move vertically along the column 2, it cooperates with the elastic connecting plate 801 and the first spring 802 to form the upper mold body 701. 01 provides elastic traction force. The hydraulic cylinder 1011 is equipped with a shock absorber and is connected to the extension plate 702 through the connecting block 1014. When the upper mold body 701 moves, the hydraulic piston rod 1012 cooperates with the damping spring 1013 to suppress the oscillation when the damping spring 1013 absorbs shock and rebounds. This is used to counteract the impact force when the upper mold body 701 moves. It also cooperates with the elastic traction and buffering of the top first spring 802 and the elastic connecting plate 801 to reduce the vibration generated when the upper mold body 701 moves and demolds.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.

Claims

1. A vibration-damping injection mold, comprising a lower mold base (1), characterized in that: The lower mold base (1) is provided with a column (2) at the top, the column (2) is provided with an upper mold base (3) at the top, the lower mold base (1) is provided with an injection mold (4) at the top, the upper mold base (3) is fixedly connected with a driving device (5), the output end of the driving device (5) is fixedly connected with a connecting mechanism (6), the bottom of the connecting mechanism (6) is provided with an upper mold (7), the outer surface of the upper mold (7) is fixedly connected with an elastic connecting component (8), the elastic connecting component (8) is sleeved on the outside of the column (2), the two sides of the lower mold base (1) are fixedly connected with positioning components (9), the inner wall of the positioning components (9) is provided with a hydraulic vibration damping mechanism (10), and the output end of the hydraulic vibration damping mechanism (10) is fixedly connected to the two sides of the upper mold (7).

2. The vibration-damping injection mold according to claim 1, characterized in that: The driving device (5) includes a driving cylinder (501), and the output end of the driving cylinder (501) is provided with a driving shaft (502). The connecting mechanism (6) includes a connecting plate (601), and a connecting column (602) is fixedly connected to the bottom of the connecting plate (601). The driving shaft (502) is fixedly connected to the connecting plate (601), and the upper mold (7) is fixed to the bottom of the connecting plate (601).

3. The vibration-damping injection mold according to claim 1, characterized in that: The upper mold (7) includes an upper mold body (701), and extension plates (702) are fixedly connected to both sides of the upper mold body (701). The output end of the hydraulic damping mechanism (10) is fixedly connected to the extension plates (702).

4. A vibration-damping injection mold according to claim 3, characterized in that: The elastic connection assembly (8) includes an elastic connection plate (801), and a first spring (802) is fixedly connected to the top of the elastic connection plate (801). The top of the first spring (802) is fixedly connected to the bottom of the upper mold base (3). The number of elastic connection plates (801) and first springs (802) is set in several groups. Several elastic connection plates (801) and first springs (802) are evenly distributed at the four corners of the upper mold body (701).

5. A vibration-damping injection mold according to claim 3, characterized in that: The positioning component (9) includes a mounting plate (901), on the outer surface of which a positioning plate (902) is fixedly connected, and the hydraulic damping mechanism (10) is located on the inner wall of the positioning plate (902).

6. A vibration-damping injection mold according to claim 5, characterized in that: The hydraulic damping mechanism (10) includes a hydraulic cylinder (1011), a hydraulic piston rod (1012) is provided inside the hydraulic cylinder (1011), a damping spring (1013) is fixedly connected to one end of the hydraulic piston rod (1012), a connecting block (1014) is provided at the output end of the hydraulic piston rod (1012), and the extension plate (702) is fixedly connected to the connecting block (1014).

7. A vibration-damping injection mold according to claim 6, characterized in that: The hydraulic cylinder (1011) and hydraulic piston rod (1012) are each provided in two sets, and the positioning plate (902) is provided in two sets.

8. A vibration-damping injection mold according to claim 1, characterized in that: The bottom of the lower mold base (1) is fixedly connected to a balance column (12), and the bottom of the balance column (12) is fixedly connected to a rubber pad (13).

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