Molding assembly for elevator counterweight shell

Abstract

The utility model provides a molding assembly for an elevator counterweight shell, which relates to the technical field of elevator counterweight shell molding, and comprises a base, a temporary storage cavity arranged in the base, a lower mold arranged in the temporary storage cavity, a molding cavity arranged at the top of the lower mold, an ejector plate arranged in the molding cavity, and two limiting plates arranged above the base, an oil squeezing cavity is formed in the base; the ejection assembly is arranged in the base and used for ejecting the shell, and the ejection assembly comprises a compression spring, a piston, an ejection plate, a connecting rod and an oil squeezing cavity. According to the forming assembly, through the arrangement of the ejection assembly, a formed shell can be ejected out of the forming cavity of the lower die after stamping is completed, meanwhile, friction between a plate and the lower die is reduced, the service life of the die is prolonged, and through the arrangement of the limiting assembly, the plate can be limited; and dust or sand is prevented from entering the temporary storage cavity to pollute the lubricating oil.

Description

Technical Field

[0001] This utility model relates to the field of elevator counterweight shell molding technology, specifically to a molding component for elevator counterweight shells. Background Technology

[0002] The elevator counterweight shell is an important component of the elevator system, mainly used to enclose and protect the elevator's counterweight blocks. The production of the elevator counterweight shell involves steps such as cutting, stamping, and welding. During the stamping process, forming components are often used to press the cut sheet metal into a specific shape. However, existing elevator counterweight shell forming components still have certain shortcomings. For example, when stamping the sheet metal, the formed material is prone to getting stuck in the lower mold, making it difficult to remove and affecting work efficiency. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of the prior art and provide a molding component for elevator counterweight housing. To solve the above problems, by setting an ejector component, the molded housing can be ejected from the molding cavity of the lower mold after stamping, while reducing the friction between the sheet metal and the lower mold and extending the service life of the mold. Furthermore, by setting a limiting component, the sheet metal can be limited and dust or sand particles can be prevented from entering the storage cavity and contaminating the lubricating oil.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a molding assembly for an elevator counterweight housing, comprising: a base, a temporary storage cavity inside the base, a lower mold inside the temporary storage cavity, a molding cavity at the top of the lower mold, an ejector plate inside the molding cavity, two limiting plates above the base, an oil squeezing cavity inside the base, and an ejector assembly located inside the base for ejecting the housing, the ejector assembly comprising: a compression spring, a piston, an ejector plate, a connecting rod, and an oil squeezing cavity.

[0005] Furthermore, a sealing rubber block is fixedly connected to the bottom of the lower mold, an oil drain port a is opened at the bottom of the lower mold, an oil drain port b is opened at the bottom of the sealing rubber block, an oil storage cavity is opened inside the base, and an oil guide cavity is opened on both sides of the inner wall of the oil squeezing cavity.

[0006] Furthermore, an oil drain pipe is connected to the bottom of the inner wall of the oil storage cavity. The oil drain pipe is equipped with a solenoid valve, and one end of the oil drain pipe extends into the interior of the oil guide cavity. After the sheet metal is stamped and formed, the solenoid valve on the oil drain pipe is controlled to open, so that the oil storage cavity and the oil guide cavity are connected, thereby allowing the lubricating oil in the oil storage cavity to flow back into the oil guide cavity.

[0007] Furthermore, the base has two oil outlet chambers, each equipped with a filter screen. A compression spring is located inside the oil outlet chamber, with a piston fixedly connected to the top of the compression spring. A connecting rod is fixedly connected to the top of the piston, and the top of the connecting rod is fixedly connected to the ejector plate. The ejector plate has multiple capillary holes b on its top, and sponge blocks are located on all four sides of the ejector plate. Multiple capillary holes a are located on the outer side of the lower mold, and two oil filling ports are located on the top of the lower mold. Through the sponge blocks, when the ejector plate pushes the shell out of the molding cavity, the sponge blocks can absorb the lubricating oil on the inner wall of the molding cavity and evenly spread the lubricating oil onto the inner wall of the molding cavity.

[0008] Furthermore, the base is equipped with a support on top, a hydraulic cylinder on top of the support, an upper mold at the bottom of the hydraulic cylinder, and a transparent plastic plate on one side of the base. In use, the hydraulic cylinder is controlled to move the upper mold downward until the bottom of the upper mold contacts the surface of the plate, and pushes the plate to move the forming cavity downward, so that the plate enters the forming cavity. The transparent plastic plate allows the amount of lubricating oil stored in the oil squeezing cavity and oil outlet cavity to be observed when adding lubricating oil, preventing the addition of too much lubricating oil.

[0009] Furthermore, the limiting component at the top of the base includes: two fixing plates fixedly connected to the top of the base, each fixing plate having a T-shaped screw on one side, one end of each T-shaped screw being connected to a T-shaped limiting plate via a bearing, rubber blocks at the bottom of each T-shaped limiting plate, and multiple springs fixedly connected to one side of each T-shaped limiting plate, with one side of each spring being fixedly connected to the limiting plate. Through the arrangement of the springs and the limiting plate, the plate material can be limited.

[0010] Furthermore, each of the two fixing plates has a threaded hole on one side that mates with the T-shaped screw, and the two fixing plates are symmetrically arranged about the ejector plate.

[0011] This utility model provides a molded component for elevator counterweight housing, which has the following beneficial effects:

[0012] The advantage of this utility model is that, by setting the ejector component, the formed shell can be ejected from the forming cavity of the lower mold after stamping, reducing the need for manual operation. At the same time, during the stamping process, lubricating oil can penetrate between the shell and the lower mold, reducing the friction between the sheet metal and the lower mold, reducing the wear on the mold surface, and thus extending the service life of the mold.

[0013] Secondly, the limiting components can limit the material to avoid waste caused by the material's position shift. At the same time, the rubber blocks can seal the oil filling port to prevent dust or sand from entering the storage chamber and contaminating the lubricating oil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the top plate structure of this utility model.

[0017] Figure 4 This is a cross-sectional view of the oil squeezing chamber structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the top plate structure of this utility model.

[0019] Figure 6 For the present utility model Figure 3 Enlarged view of point A.

[0020] Figure 1-6 Components: 1. Base; 101. Oil squeezing chamber; 102. Compression spring; 103. Oil storage chamber; 104. Oil guide chamber; 105. Oil drain pipe; 106. Oil outlet chamber; 107. Temporary storage chamber; 108. Filter screen; 2. Support; 3. Hydraulic cylinder; 301. Upper mold; 4. T-shaped screw; 401. Fixing plate; 402. T-shaped limiting plate; 403. Rubber block; 404. Oil filling port; 405. Spring; 406. Limiting plate; 5. Lower mold; 501. Forming cavity; 502. Capillary pore a; 503. Connecting rod; 504. Ejector plate; 505. Capillary pore b; 506. Sponge block; 507. Piston; 508. Oil drain port a; 6. Sealing rubber block; 601. Oil drain port b; 7. Transparent plastic plate. Detailed Implementation

[0021] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] This application provides a molding assembly for an elevator counterweight housing. This molding assembly, through the ejection component, allows the molded housing to be ejected from the molding cavity of the lower mold after stamping, reducing friction between the sheet metal and the lower mold, extending the mold's service life. Furthermore, the limiting component restricts the sheet metal movement and prevents dust or sand particles from entering the storage cavity and contaminating the lubricating oil. The molding assembly for the elevator counterweight housing will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0024] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Please see Figure 1-6 In this embodiment, a molding assembly for an elevator counterweight housing is provided, comprising: a base 1, a temporary storage cavity 107 inside the base 1, a lower mold 5 inside the temporary storage cavity 107, a molding cavity 501 at the top of the lower mold 5, an ejector plate 504 inside the molding cavity 501, two limiting plates 406 above the base 1, and an oil squeezing cavity 101 inside the base 1; and an ejector assembly located inside the base 1 for ejecting the housing, the ejector assembly comprising: a compression spring 102, a piston 507, an ejector plate 504, a connecting rod 503, and the oil squeezing cavity 101.

[0026] Furthermore, when the upper mold 301 leaves the housing, the compressed spring 102 returns to its original state and pushes the connecting rod 503 and the ejector plate 504 upward, thereby ejecting the housing from the top of the ejector plate 504.

[0027] The lower mold 5 is fixedly connected to a sealing rubber block 6 at its bottom. The lower mold 5 has an oil drain port a508 at its bottom, and the sealing rubber block 6 has an oil drain port b601 at its bottom. The base 1 has an oil storage chamber 103 inside, and oil guide chambers 104 are opened on both sides of the inner wall of the oil extrusion chamber 101. An oil drain pipe 105 is connected to the bottom of the inner wall of the oil storage chamber 103. The oil drain pipe 105 is equipped with a solenoid valve, and one end of the oil drain pipe 105 extends into the oil guide chamber 104. After the sheet metal is stamped, the solenoid valve on the oil drain pipe 105 is opened to make the oil storage chamber 103 and the oil guide chamber 104 connected, so that the lubricating oil in the oil storage chamber 103 flows back into the oil guide chamber 104.

[0028] The base 1 has two oil outlet chambers 106, each with a filter screen 108. The oil squeezing chamber 101 has a compression spring 102, and a piston 507 is fixedly connected to the top of the compression spring 102. A connecting rod 503 is fixedly connected to the top of the piston 507, and the top of the connecting rod 503 is fixedly connected to the ejector plate 504. The ejector plate 504 has multiple capillary holes b505 on its top, and sponge blocks 506 are provided on all four sides of the ejector plate 504. The lower mold 5 has multiple capillary holes a502 on its outer side, and two oil filling ports 404 are provided on the top of the lower mold 5.

[0029] In use, the sheet metal is limited by two limiting plates 406 and spring 405. Then, the hydraulic cylinder 3 can be controlled to move the upper mold 301 downward until the bottom of the upper mold 301 contacts the surface of the sheet metal, and push the sheet metal to move the forming cavity 501 downward until the sheet metal enters the forming cavity 501. The ejector plate 504 moves to the bottom of the inner wall of the forming cavity 501, thereby stamping the sheet metal. During the downward movement of the ejector plate 504, the ejector plate 504 will push the connecting rod 503 downward, driving the piston 507 to squeeze the lubricating oil inside the oil squeezing cavity 101 and compress the spring 102. The lubricating oil inside the oil squeezing cavity 101 enters the temporary storage cavity 107 through two oil guide cavities 104 and two oil outlet cavities 106. Then, it seeps into the space between the sheet metal and the inner wall of the forming cavity 501 through multiple capillary pores a502 on the outside of the lower mold 5. To reduce the friction between the sheet metal and the inner wall of the forming cavity 501, excess lubricating oil entering between the sheet metal and the inner wall of the forming cavity 501 will flow through multiple capillary holes b505 into the oil drain port a508, and then through the oil drain port b601 into the oil storage cavity 103. After the sheet metal is stamped, the hydraulic cylinder 3 is activated to move the upper mold 301 upward. At this time, the compression spring 102 returns to its original state and pushes the connecting rod 503 and the ejector plate 504 upward, thereby ejecting the shell at the top of the ejector plate 504. At the same time, excess lubricating oil in the temporary storage cavity 107 will flow back into the oil outlet cavity 106. Then, the solenoid valve on the control oil drain pipe 105 is opened to connect the oil storage cavity 103 and the oil guide cavity 104, so that the lubricating oil in the oil storage cavity 103 flows back into the oil guide cavity 104.

[0030] Furthermore, a sponge block 506 is provided on the outer side of the ejector plate 504. When the sponge block 506 can absorb the lubricating oil on the inner wall of the molding cavity 501, and when the compression spring 102 resets the ejector plate 504, the lubricating oil on the sponge block 506 is evenly applied to the inner wall of the molding cavity 501.

[0031] The base 1 has a support 2 on top, the support 2 has a hydraulic cylinder 3 on top, the hydraulic cylinder 3 has an upper mold 301 at the bottom, and the base 1 has a transparent plastic plate 7 on one side. When in use, the hydraulic cylinder 3 is controlled to move the upper mold 301 down until the bottom of the upper mold 301 contacts the surface of the plate, and pushes the plate to move the forming cavity 501 down, so that the plate enters the forming cavity 501.

[0032] The limiting assembly at the top of the base 1 includes: two fixing plates 401 fixedly connected to the top of the base 1, each fixing plate 401 having a T-shaped screw 4 on one side, and one end of the T-shaped screw 4 connected to a T-shaped limiting plate 402 via a bearing; rubber blocks 403 located at the bottom of the two T-shaped limiting plates 402, and multiple springs 405 fixedly connected to one side of the two T-shaped limiting plates 402, with one side of each spring 405 fixedly connected to a limiting plate 406; threaded holes that mate with the T-shaped screws 4 are provided on one side of each fixing plate 401, and the two fixing plates 401 are symmetrically arranged about the ejector plate 504.

[0033] In use, the cut sheet is placed between two limiting plates 406. Multiple springs 405 on one side of the two T-shaped limiting plates 402 push the two limiting plates 406 to move towards each other, thereby limiting the sheet. When the lubricating oil in the oil squeezing chamber 101 is used up, the T-shaped screw 4 can be turned. The T-shaped screw 4 drives the T-shaped limiting plates 402 and 406 to move away from the ejector plate 504, thereby removing the T-shaped limiting plates 402 and the rubber block 403 from the oil filling port 404. Then, oil can be poured into the oil filling port 404, so that the added lubricating oil enters the temporary storage chamber 107 through the oil filling port 404, and flows into the oil outlet chamber 106 and the oil squeezing chamber 101 after being filtered by the filter screen 108. At the same time, when adding lubricating oil, the amount of lubricating oil in the oil squeezing chamber 101 and the oil outlet chamber 106 can be viewed through the transparent plastic plate 7 to prevent the addition of too much lubricating oil.

[0034] The working principle is as follows:

[0035] In use, the cut sheet material is placed between two limiting plates 406. Multiple springs 405 on one side of the two T-shaped limiting plates 402 push the two limiting plates 406 to move towards each other, thus limiting the sheet material. Then, the hydraulic cylinder 3 can be controlled to move the upper mold 301 downwards until the bottom of the upper mold 301 contacts the surface of the sheet material, pushing the sheet material and causing the forming cavity 501 to move downwards until the sheet material enters the forming cavity 501. The ejector plate 504 moves to the bottom of the inner wall of the forming cavity 501, thus stamping the sheet material. During the downward movement of the ejector plate 504, it pushes the connecting rod 503 downwards, causing the piston 507 to squeeze the lubricating oil inside the oil squeezing chamber 101 and compress the spring 102. This causes the lubricating oil inside the oil squeezing chamber 101 to enter the temporary storage chamber 107 through two oil guide chambers 104 and two oil outlet chambers 106. Then, it passes through multiple capillaries on the outside of the lower mold 5. Hole a502 penetrates between the sheet metal and the inner wall of the forming cavity 501 to reduce the friction between them. Excess lubricating oil entering between the sheet metal and the inner wall of the forming cavity 501 flows through multiple capillary holes b505 into the oil outlet a508 and then through the oil outlet b601 into the oil storage cavity 103. After the sheet metal is stamped, the hydraulic cylinder 3 is activated to move the upper mold 301 upward. At this time, the compression spring 102 returns to its original state and pushes the connecting rod 503 and the ejector plate 504 upward, thereby ejecting the shell at the top of the ejector plate 504. Meanwhile, excess lubricating oil in the temporary storage cavity 107 flows back into the oil outlet cavity 106. Then, the solenoid valve on the control oil outlet pipe 105 is opened to connect the oil storage cavity 103 and the guide oil cavity 104, so that the lubricating oil in the oil storage cavity 103 flows back into the guide oil cavity 104.

[0036] Furthermore, a sponge block 506 is provided on the outer side of the ejector plate 504. The sponge block 506 can absorb the lubricating oil on the inner wall of the molding cavity 501, and when the compression spring 102 resets the ejector plate 504, the lubricating oil on the sponge block 506 is evenly applied to the inner wall of the molding cavity 501.

[0037] When the lubricating oil inside the oil squeezing chamber 101 is used up, the T-shaped screw 4 can be turned, which will drive the T-shaped limiting plate 402 and the limiting plate 406 to move away from the ejector plate 504. This will remove the T-shaped limiting plate 402 and the rubber block 403 from the oil filling port 404, and then oil can be poured into the oil filling port 404. The added lubricating oil will enter the temporary storage chamber 107 through the oil filling port 404, and after being filtered by the filter screen 108, it will flow into the oil outlet chamber 106 and the oil squeezing chamber 101. At the same time, when adding lubricating oil, the amount of lubricating oil stored in the oil squeezing chamber 101 and the oil outlet chamber 106 can be viewed through the transparent plastic plate 7 to prevent the addition of too much lubricating oil.

[0038] In addition, a control panel is provided on one side of the base 1. The control panel can control the start and stop of the hydraulic cylinder 3, and the power of the hydraulic cylinder 3 is provided by an external power source.

[0039] The control program involved in this utility model can be implemented by those skilled in the art based on the same or similar principles in the prior art, and this part is not the innovation of this utility model.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0041] The foregoing has provided a detailed description of a molding component for an elevator counterweight housing provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A molded component for an elevator counterweight housing, characterized in that, include: A base (1) is provided with a temporary storage cavity (107) inside the base (1). A lower mold (5) is provided inside the temporary storage cavity (107). A forming cavity (501) is provided on the top of the lower mold (5). An ejector plate (504) is provided inside the forming cavity (501). Two limiting plates (406) are provided above the base (1). An oil squeezing cavity (101) is provided inside the base (1). An ejection assembly located inside the base (1) is used for ejecting the housing. The ejection assembly includes: a compression spring (102), a piston (507), an ejection plate (504), a connecting rod (503), and an oil squeezing chamber (101).

2. The molded assembly for elevator counterweight housing according to claim 1, characterized in that, The bottom of the lower mold (5) is fixedly connected to a sealing rubber block (6). The bottom of the lower mold (5) is provided with an oil drain port a (508). The bottom of the sealing rubber block (6) is provided with an oil drain port b (601). The base (1) is provided with an oil storage cavity (103). The inner walls of the oil squeezing cavity (101) are provided with oil guiding cavities (104).

3. The molded assembly for elevator counterweight housing according to claim 2, characterized in that, The bottom of the inner wall of the oil storage chamber (103) is connected to an oil drain pipe (105), which is equipped with a solenoid valve, and one end of the oil drain pipe (105) extends into the interior of the oil guide chamber (104).

4. The molded assembly for elevator counterweight housing according to claim 1, characterized in that, The base (1) has two oil outlet chambers (106) inside, and each of the two oil outlet chambers (106) is equipped with a filter screen (108). The oil squeezing chamber (101) is equipped with a compression spring (102). The top of the compression spring (102) is fixedly connected to a piston (507). The top of the piston (507) is fixedly connected to a connecting rod (503), and the top of the connecting rod (503) is fixedly connected to the ejector plate (504). The top of the ejector plate (504) is provided with multiple capillary holes b (505). The four sides of the ejector plate (504) are provided with sponge blocks (506). The outer side of the lower mold (5) is provided with multiple capillary holes a (502). The top of the lower mold (5) is provided with two oil filling ports (404).

5. The molded assembly for elevator counterweight housing according to claim 1, characterized in that, The base (1) is provided with a support (2) on the top, the support (2) is provided with a hydraulic cylinder (3) on the top, the hydraulic cylinder (3) is provided with an upper mold (301) at the bottom, and a transparent plastic plate (7) is provided on one side of the base (1).

6. The molded assembly for elevator counterweight housing according to claim 1, characterized in that, The limiting component at the top of the base (1), the limiting component comprising: Two fixing plates (401) are fixedly connected to the top of the base (1). Each of the two fixing plates (401) is provided with a T-shaped screw (4) on one side. One end of the T-shaped screw (4) is connected to a T-shaped limiting plate (402) through a bearing. Rubber blocks (403) are provided at the bottom of the two T-shaped limiting plates (402). Multiple springs (405) are fixedly connected to one side of the two T-shaped limiting plates (402), and one side of the multiple springs (405) is fixedly connected to the limiting plate (406).

7. The molded assembly for elevator counterweight housing according to claim 6, characterized in that, Both of the fixing plates (401) have threaded holes on one side that cooperate with the T-shaped screw (4), and the two fixing plates (401) are symmetrically arranged about the ejector plate (504).

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