Die guide pillar capable of reducing impact force

Abstract

The utility model discloses a mould guide pillar for reducing impact force, which relates to the technical field of mould guide pillars and comprises a guide sleeve, a guide pillar and a buffer component, the buffer component comprises a mounting seat, one end of the guide pillar is provided with a mounting groove, and two sides of the mounting seat are respectively provided with a first decompression air bag and a second decompression air bag. According to the die guide pillar capable of reducing the impact force, the impact force between the guide sleeve and the guide pillar is reduced through the pressed deformation of the first pressure reduction air bag, part of air can enter the second pressure reduction air bag through the air inlet pipe when the first pressure reduction air bag deforms, and the first pressure reduction air bag is prevented from being broken due to excessive pressure; a second pressure reducing spring is arranged to cooperate with a second pressing plate to further reduce impact force; the first induction reed is arranged to be matched with the second induction reed, when the spring is aged to a certain degree, the compression stroke is shortened, and the first induction reed makes contact with the second induction reed to enable the buzzer to give an alarm to prompt an operator to overhaul and replace the spring.

Description

Technical Field

[0001] This utility model relates to the field of mold guide post technology, specifically a mold guide post for reducing impact force. Background Technology

[0002] Molds refer to various molds and tools used in industrial production to obtain the desired products through injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. Stamping dies are usually divided into two parts: an upper die and a lower die. They are brought together by hydraulic or other driving methods to compress and shape the workpiece.

[0003] The upper and lower molds need to be guided by guide pillars to keep the molds aligned and tightly sealed when they close. However, when the upper and lower molds come together, a large impact force is generated. This impact force can damage the mold guide pillars, causing them to wear, deform or even break. This leads to unstable vertical movement of the mold, affecting the product processing accuracy and quality. Utility Model Content

[0004] The purpose of this invention is to provide a mold guide post that reduces impact force, so as to solve the problem of damage caused by large impact force on the mold guide post during operation as mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a mold guide post for reducing impact force, including a guide sleeve and a guide post, and also includes a buffer assembly for reducing the impact force on the guide post. The buffer assembly includes a mounting base. The end of the guide post facing the guide sleeve has a mounting groove. The mounting base is threaded into the mounting groove. The mounting base has a first pressure-reducing airbag on one side relative to the guide post, and a second pressure-reducing airbag located inside the mounting groove on the other side of the mounting base. The mounting base has an air inlet pipe and an air outlet pipe connecting the first pressure-reducing airbag and the second pressure-reducing airbag.

[0007] Furthermore, a first decompression spring is provided in the mounting groove. One end of the first decompression spring abuts against the inner wall of the mounting groove through an annular plate, and the other end abuts against the second decompression airbag through a first pressure plate.

[0008] Furthermore, the inner wall of the mounting groove is symmetrically provided with first sliding grooves, and the side wall of the first pressure plate is provided with a first sliding block adapted to the first sliding groove.

[0009] Furthermore, a second pressure spring is provided inside the guide sleeve, and a second pressure plate is provided at one end of the second pressure spring facing the guide post. A second sliding groove is symmetrically opened on the inner wall of the guide sleeve, and a second slider that matches the second sliding groove is provided on the side wall of the second pressure plate.

[0010] Furthermore, the end of the guide sleeve facing the guide post is provided with a first sensing spring, the side wall of the guide post is provided with a mounting ring, and the side wall of the mounting ring facing the guide sleeve is provided with a second sensing spring.

[0011] Furthermore, both the intake pipe and the exhaust pipe have baffles at their exhaust ends.

[0012] Furthermore, the decompression airbag is specifically an ethylene propylene rubber airbag.

[0013] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0014] This utility model provides a mold guide post for reducing impact force. It reduces the impact force between the guide sleeve and the guide post during equipment operation by setting a first pressure-reducing airbag. A second pressure-reducing airbag, in conjunction with a first pressure plate and a first pressure-reducing spring, allows some gas to enter the second pressure-reducing airbag through the air inlet pipe when the first pressure-reducing airbag deforms, extending the service life of the first pressure-reducing airbag. A second pressure-reducing spring, in conjunction with a second pressure plate, further reduces impact force. A first sensing spring, in conjunction with a second sensing spring, causes the compression stroke to shorten when the spring ages to a certain extent, and the first sensing spring contacts the second sensing spring, triggering a buzzer alarm to prompt the operator to inspect and replace the spring. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the structure of the mold guide pillar provided by this utility model;

[0018] Figure 2 Another structural schematic diagram of the mold guide post provided by this utility model;

[0019] Figure 3 A cross-sectional structural diagram of the mold guide post provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the first decompression airbag during compression.

[0021] In the picture:

[0022] 100. Guide sleeve;

[0023] 110. First sensing spring; 120. Second slide groove;

[0024] 200. Guide column;

[0025] 210. Mounting ring; 220. Second sensing spring; 230. Mounting groove; 240. First sliding groove;

[0026] 300. Buffer components;

[0027] 310. Mounting base; 311. Intake pipe; 312. Exhaust pipe; 320. First decompression airbag; 330. Second decompression airbag; 340. First decompression spring; 350. First pressure plate; 351. First slider; 360. Second decompression spring; 370. Second pressure plate; 371. Second slider. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0031] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Please see Figures 1 to 4 This utility model provides a mold guide post for reducing impact force, including a guide sleeve 100 and a guide post 200, and also includes a buffer assembly 300 for reducing the impact force on the guide post 200. The buffer assembly 300 includes a mounting base 310. A mounting groove 230 is provided at the end of the guide post 200 facing the guide sleeve 100. The mounting base 310 is threaded into the mounting groove 230. A first pressure-reducing airbag 320 is mounted on the side of the mounting base 310 opposite to the guide post 200. The first pressure-reducing airbag 320 provides buffering when the guide post 200 contacts the guide sleeve 100. To improve the service life of the airbag and prevent it from rupturing after repeated excessive pressure deformation, this utility model has a second decompression airbag 330 installed on the other side of the mounting base 310, located inside the mounting groove 230. The mounting base 310 has an air inlet pipe 311 and an exhaust pipe 312 connecting the first decompression airbag 320 and the second decompression airbag 330. During the mold operation, as the upper mold moves closer to the lower mold, the guide post 200 and the guide sleeve 100 move closer to each other, and the first decompression airbag 320 deforms under pressure, and the gas inside it is discharged into the second decompression airbag 330 through the air inlet pipe 311.

[0034] like Figures 2 to 3As shown, a first pressure-reducing spring 340 is installed in the mounting groove 230. One end of the first pressure-reducing spring 340 abuts against the inner wall of the mounting groove 230 through an annular plate, and the other end abuts against the second pressure-reducing airbag 330 through a first pressure plate 350. When the equipment is running, the first pressure-reducing airbag 320 deforms under pressure, and the gas inside it is discharged into the second pressure-reducing airbag 330 through the air inlet pipe 311. The second pressure-reducing airbag 330 expands and squeezes the first pressure plate 350, thereby compressing the first pressure-reducing spring 340. After the workpiece is pressed and formed, the upper mold moves away from the lower mold. At this time, the first pressure-reducing spring 340 is released, driving the first pressure plate 350 to squeeze the second pressure-reducing airbag 330. The gas inside the second pressure-reducing airbag 330 is discharged into the first pressure-reducing airbag 320 through the exhaust pipe 312. The first pressure-reducing airbag 320 returns to its original shape under the action of rubber elasticity.

[0035] like Figure 3 As shown, a first sliding groove 240 is symmetrically installed on the inner wall of the mounting groove 230, and a first slider 351 adapted to the first sliding groove 240 is installed on the side wall of the first pressure plate 350. The first slider 351 cooperates with the first sliding groove 240 to limit the direction of the first pressure plate 350 and prevent the first pressure plate 350 from being tilted under pressure.

[0036] like Figure 3 As shown, a second pressure relief spring 360 is installed inside the guide sleeve 100. A second pressure plate 370 is installed at one end of the second pressure relief spring 360 facing the guide post 200. A second slide groove 120 is symmetrically installed on the inner wall of the guide sleeve 100. A second slider 371 that matches the second slide groove 120 is installed on the side wall of the second pressure plate 370. The second slider 371 cooperates with the second slide groove 120 to limit the direction of the second pressure plate 370 and prevent the second pressure plate 370 from being tilted under pressure.

[0037] like Figures 2 to 3 As shown, with repeated compression and recovery of the spring, it will age, shortening the compression stroke and thus reducing the buffer force, causing collision damage to the guide sleeve 100 and the guide post 200. To address this, the present invention installs a first sensing spring 110 at the end of the guide sleeve 100 facing the guide post 200, and an installation ring 210 on the side wall of the guide post 200. A second sensing spring 220 is installed on the side wall of the installation ring 210 facing the guide sleeve 100. As the spring ages and the compression stroke shortens, the distance between the first sensing spring 110 and the second sensing spring 220 continuously shortens each time the equipment runs, until the first sensing spring 110 contacts the second sensing spring 220. At this time, a buzzer (not shown) will sound an alarm to prompt the operator to repair the equipment and replace the aging spring.

[0038] like Figure 3As shown, both the intake pipe 311 and the exhaust pipe 312 are equipped with baffles (unmarked) to prevent gas flow between the first decompression airbag 320 and the second decompression airbag 330 under normal conditions, keeping the first decompression airbag 320 inflated to provide sufficient buffering force during equipment operation.

[0039] The decompression airbag is specifically an ethylene propylene rubber airbag. Ethylene propylene rubber is a polymer material with good corrosion resistance and aging resistance. At the same time, it also has high cold resistance and heat resistance, and can maintain good elasticity and stability in different environments.

[0040] Working principle: During mold operation, as the upper mold moves closer to the lower mold, the guide post 200 and the guide sleeve 100 move closer together. The second pressure plate 370 contacts the first pressure-reducing airbag 320. Subsequently, the first pressure-reducing airbag 320 deforms under pressure, and the gas inside is discharged into the second pressure-reducing airbag 330 through the air inlet pipe 311. The second pressure-reducing airbag 330 expands and squeezes the first pressure plate 350, thereby compressing the first pressure-reducing spring 340. At the same time, the second pressure-reducing spring 360 is also compressed. After the workpiece is pressed and formed, the upper mold moves away from the lower mold. At this time, the first pressure-reducing spring 340... The release of the first pressure plate 350 compresses the second pressure relief airbag 330. The gas in the second pressure relief airbag 330 is compressed and discharged into the first pressure relief airbag 320 through the exhaust pipe 312. The first pressure relief airbag 320 returns to its original shape under the action of rubber elasticity. The second pressure relief spring 360 drives the second pressure plate 370 to reset. As the spring gradually ages and the pressure relief performance decreases, the time interval between the guide sleeve 100 and the guide post 200 getting closer and closer becomes smaller and smaller until the first sensing spring 110 contacts the second sensing spring 220. At this time, the buzzer alarms, prompting the operator to replace the aging spring.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold guide post for reducing impact force, characterized in that: The device includes a guide sleeve (100) and a guide post (200), and also includes a buffer assembly (300) for reducing the impact force on the guide post (200). The buffer assembly (300) includes a mounting base (310). The end of the guide post (200) facing the guide sleeve (100) is provided with a mounting groove (230). The mounting base (310) is threaded into the mounting groove (230). The mounting base (310) is provided with a first decompression airbag (320) on one side relative to the guide post (200), and a second decompression airbag (330) located inside the mounting groove (230) on the other side of the mounting base (310). The mounting base (310) is provided with an air inlet pipe (311) and an exhaust pipe (312) connecting the first decompression airbag (320) and the second decompression airbag (330).

2. The mold guide post for reducing impact force according to claim 1, characterized in that: The mounting groove (230) is provided with a first decompression spring (340). One end of the first decompression spring (340) abuts against the inner wall of the mounting groove (230) through an annular plate, and the other end abuts against the second decompression airbag (330) through a first pressure plate (350).

3. A mold guide post for reducing impact force according to claim 2, characterized in that: The inner wall of the mounting groove (230) is symmetrically provided with a first sliding groove (240), and the side wall of the first pressure plate (350) is provided with a first slider (351) that is adapted to the first sliding groove (240).

4. A mold guide post for reducing impact force according to claim 1, characterized in that: The guide sleeve (100) is provided with a second pressure spring (360), and a second pressure plate (370) is provided at one end of the second pressure spring (360) facing the guide post (200). A second sliding groove (120) is symmetrically opened on the inner wall of the guide sleeve (100), and a second slider (371) adapted to the second sliding groove (120) is provided on the side wall of the second pressure plate (370).

5. A mold guide post for reducing impact force according to claim 1, characterized in that: The guide sleeve (100) is provided with a first sensing spring (110) at one end facing the guide post (200), and a mounting ring (210) is provided on the side wall of the guide post (200). A second sensing spring (220) is provided on the side wall of the mounting ring (210) facing the guide sleeve (100).

6. A mold guide post for reducing impact force according to claim 1, characterized in that: Both the intake pipe (311) and the exhaust pipe (312) have baffles at their exhaust ends.

7. A mold guide post for reducing impact force according to claim 1, characterized in that: The decompression airbag is specifically an ethylene propylene rubber airbag.

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