Multi-purpose jacking mechanism

Abstract

The utility model discloses a multi -use jacking mechanism, including support seat, and support seat is connected with first jacking subassembly, and the left and right ends of first jacking subassembly are connected with a second jacking subassembly respectively, first jacking subassembly contains two mounting plates, and the top of each mounting plate is equipped with a first oil cylinder, and the cylinder body of two first oil cylinders is connected with a first power plate, and the top of the left and right ends of first power plate is connected with a first jacking plate, and the top of first power plate is equipped with a plurality of first top rod, and the top of a plurality of first top rod is equipped with second power plate, and the support seat is connected with a plurality of first pull rod between second power plate, and the top of the left and right ends of second power plate is connected with a second jacking plate.

Description

Technical Field

[0001] This utility model relates to the field of molding equipment technology, specifically a multi-purpose lifting mechanism. Background Technology

[0002] Molding equipment, including injection molding machines and vulcanizing machines, is required in the processing of plastic and rubber products. After the products are formed by these molding machines, the molds need to be opened to remove the products.

[0003] In injection molding machines, after the finished product is formed, the upper mold is often lifted by the upper mold mechanism to open the mold. However, this structure undoubtedly increases the manufacturing precision of the molding machine. For molds with combined cavities, the manufacturing precision and requirements are even higher. Furthermore, opening the mold inside the molding machine also poses certain safety risks. In vulcanizing molding machines, after the finished product is formed, most currently use a single lifting plate structure, although some use two lifting plates. However, these structures are relatively complex and can only be used for vulcanization mold opening, offering limited structural performance. Utility Model Content

[0004] The purpose of this invention is to provide a multi-purpose lifting mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-purpose lifting mechanism, including a support base, wherein a first lifting component is connected to the support base, and a second lifting component is connected to the left and right ends of the first lifting component respectively;

[0006] The first lifting assembly includes two mounting plates connected to a support base. The two mounting plates are located below the support base. Each mounting plate has an inverted first hydraulic cylinder above it. The cylinder bodies of the two first hydraulic cylinders are connected to a horizontally arranged first power plate. A first lifting plate is supported and connected above both the left and right ends of the first power plate. Several first push rods are arranged above the first power plate. A horizontally arranged second power plate is arranged above the several first push rods. Several first tie rods are connected between the support base and the second power plate. The first tie rods are movably connected to the second power plate. A second lifting plate is connected above both the left and right ends of the second power plate. The two second lifting plates are respectively located below the two first lifting plates.

[0007] Further preferably, the second lifting assembly includes a second hydraulic cylinder mounted on a second power plate. The upper piston rod end of the second hydraulic cylinder is connected to a fourth vertically upward-pointing connecting rod. The upper end of the fourth connecting rod is connected to a third lifting plate. The two third lifting plates of the two second lifting assemblies are respectively positioned above the two first lifting plates. The second hydraulic cylinder can drive the fourth connecting rod to rise and fall, thereby raising and lowering the third lifting plates and achieving the lifting function.

[0008] Further preferably, the fourth connecting rod is threaded, and two nuts are screwed onto the thread. The nuts are positioned below the second lifting plate, which corresponds to the third lifting plate. The thread and nuts are spares, and their positions can be adjusted so that when the fourth connecting rod rises, it drives the second lifting plate to rise synchronously, increasing the rising stroke of the second lifting plate, increasing the mold opening space, facilitating the removal of products from the mold cavity, and improving safety.

[0009] Further preferably, several guide rods are connected below the third lifting plate. These guide rods are movably inserted into the first and second lifting plates. Several semi-circular third top grooves are provided on the adjacent sides of both third lifting plates. The guide rods guide the movement of the third lifting plates, and the third top grooves cooperate with the mold. Guide shafts are installed on both sides of the mold's template. The third top grooves can push the guide shafts, lifting the mold's template to achieve mold opening.

[0010] Further preferably, each of the two first lifting plates has steps on its adjacent sides, and each step of the first lifting plate has several semi-circular first top grooves. Several second connecting rods connect the first lifting plate and the first power plate. The first lifting plate engages with the guide shafts on both sides of the mold template through the first top grooves to lift the mold; the second connecting rods connect the first power plate and the first lifting plate, enabling the first power plate to drive the first lifting plate to rise and fall, thus achieving lifting.

[0011] Further preferably, each of the two adjacent sides of the second lifting plates is provided with several semi-circular second top grooves, and several third connecting rods connect the second lifting plates and the second power plate. The second lifting plates cooperate with the guide shafts on both sides of the mold template through the second top grooves to lift the mold; the third connecting rods are used to connect the second power plate and the second lifting plates, so that the second power plate drives the second lifting plates to rise and fall, thereby achieving lifting.

[0012] Further preferably, a plurality of first connecting rods connect the support base and the mounting plate, and a plurality of second push rods are provided in the middle of the first power plate, with a third lifting assembly located above the second push rods. The first connecting rods are used for mounting the mounting plate, thereby fixing the mounting plate. The second push rods are used to drive the third lifting assembly to rise, thereby realizing the lifting function of the third lifting assembly.

[0013] Further preferably, the third lifting assembly includes a third power plate, which is positioned above the second power plate. Several third ejector rods are mounted above the third power plate and movably pass through a support base. Several second tie rods are mounted below the third power plate and movably connected to the second power plate. The third power plate is used for mounting the third ejector rods, and by driving the third ejector rods to rise and fall, the product inside the mold cavity is ejected. The second tie rods are used to drive the third power plate to fall when the second power plate falls, thereby driving the third lifting assembly to fall and reset.

[0014] Further preferably, the third lifting assembly includes a third power plate, which is positioned above the second power plate. Several third ejector rods are mounted above the third power plate and movably pass through a support base. Several fifth connecting rods are located below the third power plate, and a third hydraulic cylinder is connected to the lower part of each fifth connecting rod. The third hydraulic cylinder is fixed to the first power plate. The third hydraulic cylinder can drive the third power plate to rise and fall, thereby causing the third ejector rods to rise and fall, thus ejecting the product from the mold cavity.

[0015] Beneficial Effects: The multi-purpose lifting mechanism of this utility model, through the structural arrangement of the first and second lifting components, achieves mold opening and lifting of the combined mold cavity. Specifically, the first lifting component includes a first lifting plate and a second lifting plate, enabling mold opening for both single-parting-face and double-parting-face molds. The rising of the first and second lifting plates lifts the mold template, achieving mold opening. With the cooperation of the third lifting plate of the second lifting component, mold opening for three-parting-face molds can be achieved. The combined mold cavity structure greatly improves production efficiency and output. The top groove structure on the three lifting plates further enhances the mold opening efficiency. This mechanism can also be used for rotating mold opening of vulcanizing molds. By pressing down on one side of the template, the guide shaft connected to the side of the template can rotate relative to the top groove, thus achieving rotating mold opening. The mechanism has multiple functions and a wider range of applications. This lifting mechanism realizes off-line mold opening, which not only facilitates the removal of the molded product but also enhances safety. The lifting mechanism has an ingenious structural design, does not require high manufacturing precision, can achieve large-stroke mold opening, improves operational safety, and achieves multi-action linkage with fewer cylinders, ensuring consistency of mechanism actions, reducing mechanism size, reducing floor space, and saving costs. At the same time, it can reduce the manufacturing difficulty of the molding machine. Attached Figure Description

[0016] Figure 1 This is an isometric structural diagram of the multi-purpose lifting mechanism disclosed in the embodiments of this utility model;

[0017] Figure 2 This is a front view schematic diagram of the multi-purpose lifting mechanism disclosed in the embodiments of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first lifting component disclosed in the embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the second lifting assembly disclosed in the embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of a third lifting assembly disclosed in an embodiment of the present utility model;

[0021] Figure 6 This is another structural schematic diagram of the third lifting component disclosed in the embodiment of this utility model.

[0022] Reference numerals: 10-Support base, 20-First lifting assembly, 201-First connecting rod, 202-Mounting plate, 203-First hydraulic cylinder, 204-First power plate, 205-Second connecting rod, 206-First lifting plate, 2061-First top groove, 207-First top rod, 208-Second power plate, 209-Third connecting rod, 210-Second lifting plate, 2101-Second top groove, 211-Second top rod, 212-First pull rod, 30-Second lifting assembly, 301-Second hydraulic cylinder, 302-Fourth connecting rod, 3021-Thread, 3022-Nut, 303-Third lifting plate, 3031-Third top groove, 304-Guide rod, 40-Third lifting assembly, 401-Third power plate, 402-Third top rod, 403-Second pull rod, 404-Fifth connecting rod, 405-Third hydraulic cylinder. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figure 1-3As shown in one embodiment of this application, a multi-purpose lifting mechanism includes a support base 10, a first lifting component 20 connected to the support base 10, and a second lifting component 30 connected to each of the left and right ends of the first lifting component 20. This lifting mechanism is used for mold opening in injection molding of plastic products, and can also be used for mold opening in vulcanization of rubber products. The support base 10 is used for mounting the first lifting component 20 and the second lifting component 30; the first lifting component 20 and the second lifting component 30 are used for mold opening, lifting the mold platen upwards to achieve mold opening. Using two lifting components can be used for mold opening of combined cavities, enabling the opening of molds with double or even triple cavities, which can greatly improve product processing efficiency and increase production capacity.

[0025] In this embodiment, the first lifting assembly 20 includes two mounting plates 202 connected to the support base 10. The two mounting plates 202 are disposed below the support base 10. Each mounting plate 202 has an inverted first hydraulic cylinder 203 above it. The cylinder bodies of the two first hydraulic cylinders 203 are connected to a horizontally disposed first power plate 204. A first lifting plate 206 is supported and connected above the left and right ends of the first power plate 204. Several first push rods 207 are disposed above the first power plate 204. A horizontally disposed second power plate 208 is disposed above the several first push rods 207. Several first pull rods 212 are connected between the support base 10 and the second power plate 208. The first pull rods 212 are movably connected to the second power plate 208. A second lifting plate 210 is connected above the left and right ends of the second power plate 208. The two second lifting plates 210 are respectively disposed below the two first lifting plates 206.

[0026] The two mounting plates 202 are used for mounting the two first hydraulic cylinders 203 relative to the support base 10. The two first hydraulic cylinders 203 ensure the powerful lifting of the first lifting assembly 20, guaranteeing the lifting and opening of the mold's parting template. The first hydraulic cylinders 203 drive the first power plate 204 to rise and fall, which in turn drives the first lifting plate 206 connected to the first power plate 204 to rise and fall, thus opening one template of the mold. Simultaneously, as the first power plate 204 rises a certain distance, it drives the first ejector rod 207 to rise, which in turn drives the second power plate 208 to rise. The second power plate 208 then drives the second lifting plate 210 to rise, lifting and opening the other template of the mold. The first pull rod 212 is installed on the support base 10 and is used to limit the downward movement of the second power plate 208. When the piston rod of the first oil cylinder 203 retracts, the first power plate 204 moves downward, and the second power plate 208 will move downward under the action of gravity. The first pull rod 212 is used to limit the downward movement of the second power plate 208.

[0027] In this embodiment, the first lifting plate 206 is positioned above the second lifting plate 210. In the combined mold cavity, if there are two parting surfaces, there are three forming templates. When the first hydraulic cylinder 203 moves upward, the first lifting plate 206 moves upward under the action of the first power plate 204, first contacting the uppermost template and lifting it upward to open the upper parting surface. As the first ejector rod 207 contacts the second power plate 208 and drives the second power plate 208 to rise, the second lifting plate 206 moves upward through the second power plate, lifting the middle template upward to open the lower parting surface.

[0028] If there are three parting surfaces, there are four forming templates. The first lifting plate 206 and the second lifting plate 206 will each lift one template, opening two of the three parting surfaces. The remaining parting surface will be opened by the second lifting component 30.

[0029] like Figure 1 and Figure 4 As shown, in another embodiment of this application, the second lifting assembly 30 includes a second hydraulic cylinder 301, which is mounted on the second power plate 208. The upper piston rod end of the second hydraulic cylinder 301 is connected to a fourth connecting rod 302 that is vertically arranged upwards. The upper end of the fourth connecting rod 302 is connected to a third lifting plate 303. The two third lifting plates 303 of the two second lifting assemblies 30 are respectively arranged above the two first lifting plates 206.

[0030] In this embodiment, the second hydraulic cylinder 301 is used to lift the third lifting plate 303. The second hydraulic cylinder 301 can drive the fourth connecting rod 302 to rise and fall, and the fourth connecting rod 302 can drive the third lifting plate 303 to rise and fall, thereby lifting the mold template upward and opening the mold.

[0031] like Figure 4 As shown, based on the above embodiments, in another embodiment of this application, the fourth connecting rod 302 is provided with a thread 3021, and the thread 3021 is screwed with two nuts 3022 arranged in parallel. The nuts 3022 are located below the second lifting plate 210 corresponding to the third lifting plate 303.

[0032] In this embodiment, the thread 3021 on the fourth connecting rod 302 is used to connect the nut 3022. When the second hydraulic cylinder 301 drives the fourth connecting rod 302 to rise, the nut 3022 can contact the second lifting plate 210 and push the second lifting plate 210 to rise, further lifting the second lifting plate 210 a certain distance. Through the lifting and lowering movement of the second lifting plate 210, the template is lifted. It can be lifted to a certain height by the second power plate 208 and then further lifted by the nut 3022, raising the mold opening height of the template to facilitate the removal of the product inside. Alternatively, when the second power plate 208 is not in use, the template can be lifted by the nut 3022 simultaneously with the lifting of the third lifting plate 303, realizing the lifting and opening of the mold template.

[0033] like Figure 4 As shown, based on the above embodiments, in another embodiment of this application, a plurality of guide rods 304 are connected below the third lifting plate 303. The guide rods 304 are movably inserted into the first lifting plate 206 and the second lifting plate 210. A plurality of semi-circular third top grooves 3031 are provided on the mutually close sides of the two third lifting plates 303.

[0034] In this embodiment, the structural design of the guide rod 304 effectively ensures the smooth and stable lifting of the third lifting plate 303, guaranteeing stable and safe mold opening. The guide rod 304, inserted into the first lifting plate 206 and the second lifting plate 210, provides limitation and support, ensuring precise guidance. The horizontal position of the third lifting plate 303 connected to the guide rod 304, the first lifting plate 206, and the second lifting plate 210 remains unchanged, ensuring accurate relative horizontal positions of the first lifting plate 206, the second lifting plate 210, and the third lifting plate 303. Several third top grooves 3031 are used to place the guide shaft connecting the mold template, achieving template lifting. Simultaneously, the semi-circular structure of the third top groove 3031 provides better mechanical stability, ease of processing, and reliability. It is easy to insert, reduces stress concentration, avoids stress cracks, allows for long-term use, facilitates rotation of the mold opening structure, and provides better guidance and support for the guide shaft.

[0035] like Figure 3 As shown in another embodiment of this application, steps are provided on the adjacent sides of the two first lifting plates 206, and a plurality of semi-circular first top grooves 2061 are provided on the steps of each first lifting plate 206. A plurality of second connecting rods 205 are connected between the first lifting plate 206 and the first power plate 204.

[0036] In this embodiment, a step is provided on the first lifting plate 206, which provides better limiting effect for the lifted template and can be used for template flipping of vulcanizing molds for rubber products, providing better support and limiting for the flipped template. The first top groove 2061 is used to place the guide shaft for connecting the mold template, realizing the lifting of the template. At the same time, the semi-circular structure of the first top groove 2061 has better mechanical stability, processing convenience and reliability, easy insertion, reduces stress concentration, avoids stress cracks, can be used for a long time, and facilitates the rotation of the mold opening structure, providing better guidance and support for the guide shaft. The second connecting rod 205 is used to connect the first power plate 204 and the first lifting plate 206, realizing the lifting of the first lifting plate 206 by the first power plate 204.

[0037] like Figure 3 As shown, in another embodiment of this application, the two second lifting plates 210 are provided with a plurality of semi-circular second top grooves 2101 on their adjacent sides, and a plurality of third connecting rods 209 are connected between the second lifting plates 210 and the second power plate 208.

[0038] In this embodiment, the second top groove 2101 is used to place the guide shaft for connecting the mold template, thereby lifting the template. Simultaneously, the semi-circular structure of the second top groove 2101 provides better mechanical stability, ease of processing, and reliability. It facilitates insertion, reduces stress concentration, prevents stress cracks, allows for long-term use, and facilitates the rotation of the mold opening structure, providing better guidance and support for the guide shaft. The third connecting rod 209 connects the second power plate 208 and the second lifting plate 210. The second power plate 208 drives the second lifting plate 210 to rise, thus achieving the lifting function of the second lifting plate 210.

[0039] like Figure 3 As shown, a number of first connecting rods 201 are connected between the support base 10 and the mounting plate 202, a number of second push rods 211 are provided in the middle of the first power plate 204, and a third lifting assembly 40 is provided above the second push rods 211.

[0040] In this embodiment, the mounting plate 202 is installed and fixed via the first connecting rod 201, facilitating the installation of the first lifting assembly 20. The second lifting rod 211 is used to lift the third lifting assembly 40. As the first power plate 204 rises, it drives the second lifting rod 211 to rise synchronously, thus lifting the third lifting assembly 40.

[0041] In this embodiment, the third lifting component 40 is used to eject the molded product from the mold cavity, thereby assisting in the material feeding process.

[0042] like Figure 5 As shown in another embodiment of this application, the third lifting assembly 40 includes a third power plate 401, which is disposed above the second power plate 208. Several third lifting rods 402 are provided above the third power plate 401, and the third lifting rods 402 are movably inserted through the support base 10. Several second tie rods 403 are provided below the third power plate 401, and the second tie rods 403 are movably connected to the second power plate 208.

[0043] In this embodiment, the third power plate 401 cooperates with the second push rod 211. The second push rod 211 drives the third power plate 401 to rise, which in turn drives the third push rod 402 to rise. When the third push rod 402 rises, it passes through the support base 10 and inserts into the mold cavity, ejecting the molded product from the mold cavity. The second pull rod 403 is used for the upward limit of the third lifting assembly 40 and as a force transmission rod for downward movement. It can also be used for guidance. The cooperation between the second power plate 208 and the second pull rod 403 achieves positional limitation between the two, thereby achieving positional limitation between the second power plate 208 and the third power plate 401. When the second power plate 208 descends, the second pull rod 403 drives the third power plate 401 to descend and reset, achieving force transmission. It can also serve as a guide for the lifting of the third power plate 401, ensuring that the lifting of the third power plate 401 is smooth, stable, and precise.

[0044] like Figure 6 As shown in another embodiment of this application, the third lifting assembly 40 includes a third power plate 401, which is disposed above the second power plate 208. Several third push rods 402 are provided above the third power plate 401, and the third push rods 402 are movably inserted through the support base 10. Several fifth connecting rods 404 are provided below the third power plate 401, and a third hydraulic cylinder 405 is connected below the fifth connecting rods 404. The third hydraulic cylinder 405 is fixed to the first power plate 204.

[0045] In this embodiment, the third power plate 401 cooperates with the second ejector rod 211. The second ejector rod 211 drives the third power plate 401 to rise, which in turn drives the third ejector rod 402 to rise. When the third ejector rod 402 rises, it passes through the support base 10 and inserts into the mold cavity, ejecting the molded product from the mold cavity. A fifth connecting rod 404 and a third hydraulic cylinder 405 are provided below the third power plate 401. The third hydraulic cylinder 405 drives the third power plate 401 to rise and fall, which in turn drives the third ejector rod 402 to rise and fall, thus realizing the function of the third ejector rod 402 in ejecting the product. Unlike the previous embodiment, this example uses an independent power structure, which enables independent control of the third power plate 401.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A multi-purpose lifting mechanism, comprising a support base (10), characterized in that: The support base (10) is connected to a first lifting component (20), and a second lifting component (30) is connected to the left and right ends of the first lifting component (20); The first lifting assembly (20) includes two mounting plates (202) connected to the support base (10). The two mounting plates (202) are located below the support base (10). Each mounting plate (202) has an inverted first hydraulic cylinder (203) above it. The cylinder bodies of the two first hydraulic cylinders (203) are connected to a horizontally arranged first power plate (204). A first lifting plate (206) is supported and connected above both the left and right ends of the first power plate (204). A lifting plate (206) is provided above the first power plate (204). There are several first push rods (207), and a horizontally arranged second power plate (208) is provided above the several first push rods (207). Several first pull rods (212) are connected between the support base (10) and the second power plate (208). The first pull rods (212) are movably connected to the second power plate (208). A second lifting plate (210) is connected above the left and right ends of the second power plate (208). The two second lifting plates (210) are respectively arranged below the two first lifting plates (206).

2. The multi-purpose lifting mechanism according to claim 1, characterized in that: The second lifting assembly (30) includes a second hydraulic cylinder (301), which is mounted on the second power plate (208). The upper piston rod end of the second hydraulic cylinder (301) is connected to a fourth connecting rod (302) that is vertically arranged upward. The upper end of the fourth connecting rod (302) is connected to a third lifting plate (303). The two third lifting plates (303) of the two second lifting assemblies (30) are respectively arranged above the two first lifting plates (206).

3. The multi-purpose lifting mechanism according to claim 2, characterized in that: The fourth connecting rod (302) is provided with a thread (3021), and the thread (3021) is screwed with two nuts (3022) arranged in parallel. The nuts (3022) are located below the second lifting plate (210) corresponding to the third lifting plate (303).

4. A multi-purpose lifting mechanism according to claim 2 or 3, characterized in that: Several guide rods (304) are connected to the lower part of the third lifting plate (303). The guide rods (304) are movably inserted into the first lifting plate (206) and the second lifting plate (210). Several semi-circular third top grooves (3031) are provided on the mutually close sides of the two third lifting plates (303).

5. A multi-purpose lifting mechanism according to claim 1, characterized in that: The two first lifting plates (206) are provided with steps on their adjacent sides. Each step of the first lifting plate (206) is provided with several semi-circular first top grooves (2061). Several second connecting rods (205) are connected between the first lifting plate (206) and the first power plate (204).

6. A multi-purpose lifting mechanism according to claim 1, characterized in that: The two second lifting plates (210) are provided with several semi-circular second top grooves (2101) on their adjacent sides, and several third connecting rods (209) are connected between the second lifting plates (210) and the second power plate (208).

7. A multi-purpose lifting mechanism according to claim 1, characterized in that: A plurality of first connecting rods (201) are connected between the support base (10) and the mounting plate (202). A plurality of second push rods (211) are provided in the middle of the first power plate (204). A third lifting assembly (40) is provided above the second push rods (211).

8. A multi-purpose lifting mechanism according to claim 7, characterized in that: The third lifting assembly (40) includes a third power plate (401), which is located above the second power plate (208). Several third lifting rods (402) are provided above the third power plate (401), and the third lifting rods (402) are movably inserted into the support base (10). Several second tie rods (403) are provided below the third power plate (401), and the second tie rods (403) are movably connected to the second power plate (208).

9. A multi-purpose lifting mechanism according to claim 7, characterized in that: The third lifting assembly (40) includes a third power plate (401), which is located above the second power plate (208). Several third jacking rods (402) are provided above the third power plate (401), and the third jacking rods (402) are movably inserted into the support base (10). Several fifth connecting rods (404) are provided below the third power plate (401), and a third hydraulic cylinder (405) is connected below the fifth connecting rods (404). The third hydraulic cylinder (405) is fixed on the first power plate (204).

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