A stopper for metal bellows processing

Abstract

The utility model relates to corrugated pipe processing technical field discloses a kind of limiters for metal corrugated pipe processing, comprising: substrate, the upper side of the substrate is equipped with limiting mechanism, the limiting mechanism includes: cavity ring, the inner wall of the cavity ring is equipped with soft sac, the soft sac is connected with cavity ring by first sticky layer, the inner wall of the cavity ring is equipped with a pair of through opening.This limiter for metal corrugated pipe processing, through the cooperation of substrate and limiting mechanism, soft sac is in closed state, completes the clamping limit operation to metal corrugated pipe, after metal corrugated pipe processing is completed, left side electromagnetic valve is opened, high-pressure air in soft sac is discharged, air pressure reduces, volume retracts, so that metal corrugated pipe after processing can be extracted and disassembled, by this way, metal corrugated pipe can be quickly limited and disassembled, it is simple and efficient to operate, and practicality is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe processing technology, specifically a limiter for processing metal corrugated pipes. Background Technology

[0002] Metal corrugated pipes are pipes with a regular wave-like shape. Commonly used metal corrugated pipes include those made of carbon steel and stainless steel, as well as steel-lined plastic, aluminum, etc. They are mainly used for non-concentric axial transmission requiring a very small bending radius, or for irregular turns, expansion and contraction, or to absorb the thermal deformation of the pipeline, or for connecting pipes to pipes or connecting pipes to equipment in situations where it is inconvenient to install them with fixed elbows.

[0003] During the processing of metal corrugated pipes, a limiter is required to maintain the stability of the metal corrugated pipe during processing. The prior art, the authorized public account CN 222491825 U, discloses a limiter for processing metal corrugated pipes, including three limit rings and a bending box. The top of the bending box is connected to two corresponding limit rings. Although the set bending mechanism can drive a single limit ring to rotate, so that it forms an angle with the other two limit rings to bend the metal corrugated pipe, it is convenient to bend it.

[0004] However, when clamping, fixing, loosening, or disassembling the bellows using the limiter, the screw needs to be turned multiple times, which is time-consuming, cumbersome, and inefficient. It is not convenient for quickly limiting the bellows, and its practical performance needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to provide a limiter for processing metal bellows, which can quickly limit and disassemble the metal bellows, is simple and efficient to operate, and has enhanced practical performance, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a limiter for processing metal bellows, comprising: a base plate, a limiting mechanism provided above the base plate, the limiting mechanism comprising: a cavity ring, a soft bladder provided on the inner wall of the cavity ring, the soft bladder being connected to the cavity ring through a first adhesive layer, a pair of openings provided on the inner wall of the cavity ring, a pair of insertion tubes fixedly connected to the outer wall of the cavity ring, a solenoid valve fixedly connected to the end of the insertion tube away from the cavity ring, an air tube fixedly connected to the port of the solenoid valve away from the insertion tube, the cavity ring being connected to the base plate through a support mechanism, and a protective mechanism provided on the inner wall of the soft bladder.

[0007] Preferably, a pressure relief valve is installed at the top of the cavity ring.

[0008] Preferably, the support mechanism includes: a pair of base blocks, the pair of base blocks being fixed to the bottom end of the cavity ring, the bottom end of the base blocks being fitted with a vertical cylinder, and a pair of bolts being inserted into the lower surface of the base plate, the bolts passing through the base plate and the vertical cylinder in sequence and being threadedly connected to the base blocks.

[0009] Preferably, the protective mechanism includes: a plurality of elastic strips, the plurality of elastic strips being evenly distributed on the inner wall of the soft capsule, the elastic strips being connected to the soft capsule through a second adhesive layer, the elastic strips being spun from yarn, the yarn being composed of elastic yarn and strong yarn, the elastic yarn and strong yarn being twisted together.

[0010] Preferably, a plurality of anti-slip balls are fixedly attached to the surface of the elastic strip away from the cavity ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This limiter for processing metal bellows has the following advantages over traditional technology:

[0012] With the cooperation of the base plate and the limiting mechanism, the operator inserts the metal bellows to be clamped and limited through the soft bag, so that the position to be clamped and limited is inside the soft bag. Then, the normally closed solenoid valve on the right side is opened and closed, and high-pressure air is injected into the soft bag through the right-side air tube, the right-side check valve, the right-side insertion tube and the port. As the air pressure inside the soft bag increases, its volume expands accordingly. After the soft bag and the metal bellows are clamped and pressed tightly, the right-side solenoid valve is closed. At this time, the soft bag is in a closed state, and the clamping and limiting operation of the metal bellows is completed. After the metal bellows is processed, the left-side solenoid valve is opened, the high-pressure air inside the soft bag is discharged, the air pressure decreases and the volume shrinks. In this way, the processed metal bellows can be pulled out and disassembled. In this way, the metal bellows can be quickly limited and disassembled. The operation is simple and efficient, and the practical performance is improved.

[0013] By cooperating with the base plate, limiting mechanism and supporting mechanism, the bolt is rotated counterclockwise to separate it from the base block, and the vertical tube can be disassembled. At this time, vertical tubes of different lengths can be replaced and installed at the bottom of the base block. The bolt passes through the base plate and the vertical tube of the replaced length in sequence, and then connects to the base block by thread, thereby adjusting the height position of the cavity ring, so that the height of the metal bellows after clamping and limiting can be adjusted, which facilitates the processing of metal bellows.

[0014] Through the cooperation of the base plate, the limiting mechanism and the protective mechanism, during the period when the soft bladder expands to clamp and limit the metal bellows, the elastic strip can replace the soft bladder to apply clamping and limiting force to the metal bellows. The elastic strip not only has excellent elastic deformation ability, but also has a certain degree of toughness, which can prevent the relatively sharp metal bellows clamping point from scratching the soft bladder, and facilitate the long-term and proper use of the limiter. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 for Figure 1 Enlarged view of point C in the middle;

[0020] Figure 5 for Figure 1 Top sectional view of the central soft capsule, the cavity ring, and the first adhesive layer;

[0021] Figure 6 for Figure 4 A magnified structural diagram of the spinning yarn.

[0022] In the diagram: 1. Substrate, 2. Cavity ring, 3. Soft capsule, 4. First adhesive layer, 5. Port, 6. Insertion tube, 7. Solenoid valve, 8. Air tube, 9. Pressure relief valve, 10. Base block, 11. Vertical cylinder, 12. Bolt, 13. Elastic strip, 14. Second adhesive layer, 15. Anti-slip ball, 16. Spinning thread, 161. Elastic thread, 162. Tough thread. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6This utility model provides a technical solution: a limiter for processing metal bellows, comprising: a base plate 1, a limiting mechanism provided above the base plate 1, the limiting mechanism comprising: a cavity ring 2, a soft bladder 3 provided on the inner wall of the cavity ring 2, the soft bladder 3 being connected to the cavity ring 2 through a first adhesive layer 4, a pair of openings 5 ​​provided on the inner wall of the cavity ring 2, a pair of insertion tubes 6 fixedly connected to the outer wall of the cavity ring 2, a solenoid valve 7 fixedly connected to the end of the insertion tube 6 away from the cavity ring 2, an air tube 8 fixedly connected to the port of the solenoid valve 7 away from the insertion tube 6, the cavity ring 2 being connected to the base plate 1 through a support mechanism, and a protective mechanism provided on the inner wall of the soft bladder 3.

[0025] In the specific implementation process, it is worth noting that the base plate 1, as the basic support component of the entire limiter, is made of high-strength, wear-resistant metal material, such as stainless steel, to ensure that it can withstand various external forces during the processing of the metal bellows without deformation or damage, providing a stable and reliable mounting platform for other components. The cavity ring 2 in the limit mechanism is the mounting carrier for the soft bag 3. Its shape is ring-shaped and matches the shape of the metal bellows. The soft bag 3 is made of rubber material with good elasticity and a certain degree of flexibility, which can change its volume by inflating and deflating, thereby completing the clamping and release of the metal bellows. The first adhesive layer 4 uses high-strength adhesive to ensure a firm connection between the soft bag 3 and the cavity ring 2, preventing detachment during long-term use. The inlet 5 serves as the channel for high-pressure air to enter the soft capsule 3. Its diameter is carefully designed to ensure smooth passage of high-pressure air while avoiding uneven expansion of the soft capsule 3 during inflation due to excessive diameter. The insertion tube 6 is made of metal, which has high strength and sealing performance, ensuring that no leakage occurs during the transmission of high-pressure air. The two solenoid valves 7 are key components for controlling the on / off of high-pressure air. They have fast response speed and high reliability, and can accurately control the inflation and deflation process of the soft capsule 3. The air tube 8 is made of high-pressure resistant and flexible rubber tubing. The right air tube 8 is connected to the air supply port of the external compressed air device, and the left air tube 8 is connected to the external environment. The right air tube 8 is connected to the air inlet of the right solenoid valve 7, and the left air tube 8 is connected to the exhaust port of the left solenoid valve 7.

[0026] Furthermore, a pressure relief valve 9 is installed at the top of the cavity ring 2.

[0027] In the specific implementation process, it is worth noting that the pressure relief valve 9 is a safety protection device. When the internal air pressure of the soft bag 3 is too high and exceeds the set safety value, the pressure relief valve 9 will automatically open to discharge the excess high-pressure air, thereby preventing the soft bag 3 from rupturing due to excessive pressure and ensuring the safe use of the limiter. The opening pressure value of the pressure relief valve 9 is precisely set and can be adjusted according to the material of the soft bag 3 and the actual use, ensuring that the normal operation of the limiter is not affected while ensuring safety.

[0028] Furthermore, the support mechanism includes: a pair of base blocks 10, which are fixed to the bottom of the cavity ring 2. The bottom of the base blocks 10 is attached to the vertical cylinder 11. A pair of bolts 12 are inserted into the lower surface of the base plate 1. The bolts 12 pass through the base plate 1 and the vertical cylinder 11 in sequence and are threadedly connected to the base blocks 10.

[0029] In the specific implementation process, it is worth noting that the base block 10, as an important component of the support mechanism, is made of high-strength metal material and is fixed together with the cavity ring 2 by welding to ensure the firmness and stability of the connection. The length of the vertical cylinder 11 can be selected and replaced according to actual processing requirements. Its material is also high-strength metal to ensure that it can bear the weight of the cavity ring 2 and related components. The bolts 12 are made of high-strength alloy steel, which has sufficient strength and hardness to withstand large tensile and shear forces, ensuring that the connection between the base plate 1, the vertical cylinder 11 and the base block 10 is tight and that there will be no loosening during the processing of the metal corrugated pipe.

[0030] Furthermore, the protective mechanism includes: multiple elastic strips 13, which are evenly distributed on the inner wall of the soft pouch 3. The elastic strips 13 are connected to the soft pouch 3 through a second adhesive layer 14. The elastic strips 13 are spun from yarn 16, which is composed of elastic yarn 161 and strong yarn 162. The elastic yarn 161 and strong yarn 162 are twisted together.

[0031] In the specific implementation process, it is worth noting that the uniform distribution of the elastic strip 13 ensures that the clamping force of each part is uniform when the soft bag 3 expands to clamp the metal corrugated tube, avoiding deformation or damage to the metal corrugated tube due to uneven clamping force. The second adhesive layer 14 is similar to the first adhesive layer 4, using high-strength adhesive to ensure a firm connection between the elastic strip 13 and the soft bag 3. The second adhesive layer 14 is distributed in a multi-point pattern. The elastic thread 161 in the spun yarn 16 is made of a material with good elasticity, such as rubber filament or elastic fiber (spandex fiber), which can produce large elastic deformation under pressure. The tough thread 162 is made of a high-strength, wear-resistant material, such as nylon thread and aramid fiber thread, which can enhance the overall strength and toughness of the spun yarn 16 and prevent it from being cut by the sharp edge of the metal corrugated tube during clamping. The elastic thread 161 and the tough thread 162 are combined together by twisting, so that the spun yarn 16 has both good elasticity and high strength and toughness.

[0032] Furthermore, multiple anti-slip balls 15 are fixed to the surface of the elastic strip 13 away from the cavity ring 2.

[0033] In the specific implementation process, it is worth noting that the anti-slip ball 15 is made of materials such as rubber or silicone, which has a certain elasticity and friction. When the elastic strip 13 clamps the metal bellows, the anti-slip ball 15 can increase the friction with the surface of the metal bellows, preventing the metal bellows from sliding during processing, thereby improving the processing accuracy and quality. Multiple anti-slip balls 15 are evenly distributed on the surface of the elastic strip 13, which can further enhance the anti-slip effect and ensure that the metal bellows always maintains a stable position during processing.

[0034] Working principle:

[0035] Clamping and limiting working principle:

[0036] Before processing the metal bellows, the operator initiates the clamping and limiting process using the cooperation of the base plate and the limiting mechanism. First, the metal bellows to be clamped and limited is carefully inserted through the soft bladder 3, and the position of the metal bellows is precisely adjusted so that the key part to be clamped and limited is inside the soft bladder 3, ensuring the accuracy and stability of the clamping. Then, the normally closed solenoid valve 7 on the right is opened. At this time, the air pipe on the right starts working, and high-pressure air is smoothly injected into the soft bladder 3 through the one-way valve 7 on the right, the insertion tube 6 on the right, and the port 5. As high-pressure air continues to enter, the air pressure inside the soft bladder 3 gradually increases. According to the physical relationship between air pressure and volume, the volume of the soft bladder 3 expands accordingly. When the soft bladder 3 expands to tightly and repeatedly clamp and press against the metal bellows, the solenoid valve 7 on the right is closed, cutting off the injection channel of high-pressure air and keeping the soft bladder 3 in a closed state. This completes the stable clamping and limiting operation of the metal bellows, providing a reliable fixed foundation for subsequent processing operations. After the metal bellows is processed, the clamping and limiting need to be released to remove the workpiece. At this time, the left solenoid valve 7 is opened, and the high-pressure air inside the soft bag 3 is discharged through the valve. As the air is discharged, the air pressure inside the soft bag 3 decreases, and its volume gradually shrinks back to its initial state or close to its initial state. In this way, the clamping force between the processed metal bellows and the soft bag 3 disappears, and the operator can easily pull out and disassemble the metal bellows. Through this ingenious inflation and deflation design, the metal bellows can be quickly and conveniently limited and disassembled, which not only greatly simplifies the operation process, but also significantly improves work efficiency and effectively enhances the practical performance of the limiter.

[0037] Height adjustment working principle:

[0038] To meet the diverse needs for clamping height of metal bellows in different processing scenarios, this limiter is equipped with a height adjustment function. Its working principle is based on the close cooperation of the base plate, the limiting mechanism and the support mechanism. When it is necessary to adjust the height of the metal bellows clamping limiter, the operator rotates the bolt 12 counterclockwise. As the bolt 12 rotates, the threaded connection between it and the base block 10 gradually separates. When the bolt 12 is completely separated from the base block 10, the vertical cylinder 11 loses its fixed constraint and can be easily disassembled. At this time, according to the actual processing requirements, a vertical cylinder 11 of appropriate length is selected and accurately installed at the bottom of the base block 10. Next, bolt 12 is passed through the base plate 1 and the vertical cylinder 11 of different lengths in sequence. Then, bolt 12 is rotated clockwise to reconnect it with the base block 10. As bolt 12 is tightened, the vertical cylinder 11 is firmly fixed on the base block 10. Due to the change in the length of the vertical cylinder 11 (changing to a vertical cylinder 11 of different lengths), the height position of the cavity ring 2 connected to it also changes accordingly. This allows for the adjustment of the height of the metal bellows after clamping and limiting. This height adjustment method is flexible and convenient, and can adapt to metal bellows of various specifications and processing requirements. It provides greater convenience and flexibility for the processing of metal bellows and facilitates the smooth progress of processing work.

[0039] Working principle of protection:

[0040] During the processing of the metal bellows, to prevent the soft bladder 3 from being scratched by the sharp edges of the metal bellows clamping point, thus affecting the service life and normal use of the limiter, this limiter is equipped with an effective protection mechanism through the coordinated action of the base plate, the limiting mechanism, and the protective mechanism. During the period when the soft bladder 3 expands to clamp and limit the metal bellows, the elastic strip 13 installed in a suitable position can fully play its role. The elastic strip 13 has unique physical properties, not only possessing excellent elastic deformation capability, able to deform appropriately under pressure to adapt to different clamping conditions, but also having a certain degree of toughness, able to withstand greater external forces without being easily damaged. When the expansion contacts the metal bellows, the elastic strip 13 will preferentially contact the metal bellows and apply clamping and limiting force to the metal bellows in place of the soft bladder 3. During the clamping process, even if the clamping part of the metal bellows is relatively sharp, the elastic strip 13 can effectively resist the cutting and wear of the sharp edge with its strong toughness, avoiding direct contact between the soft bladder 3 and the sharp part, thereby protecting the soft bladder 3 from damage. Through this protective design, the service life of the soft bladder 3 is greatly extended, the frequency of limiter repair and replacement due to damage to the soft bladder 3 is reduced, the use cost is reduced, and the limiter can be used for a long time and properly, providing a reliable guarantee for the stable processing of metal bellows.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiter for processing metal bellows, comprising: The substrate (1) is characterized in that: a limiting mechanism is provided above the substrate (1), the limiting mechanism includes: a cavity ring (2), a soft bag (3) is provided on the inner wall of the cavity ring (2), the soft bag (3) is connected to the cavity ring (2) through a first adhesive layer (4), a pair of through holes (5) are opened on the inner wall of the cavity ring (2), a pair of insertion tubes (6) are fixedly connected to the outer wall of the cavity ring (2), a solenoid valve (7) is fixedly connected to the end of the insertion tube (6) away from the cavity ring (2), an air tube (8) is fixedly connected to the port of the solenoid valve (7) away from the insertion tube (6), the cavity ring (2) is connected to the substrate (1) through a support mechanism, and a protective mechanism is provided on the inner wall of the soft bag (3).

2. The limiter for processing metal bellows according to claim 1, characterized in that: A pressure relief valve (9) is installed at the top of the cavity ring (2).

3. The limiter for processing metal bellows according to claim 1, characterized in that: The support mechanism includes: a pair of base blocks (10), the pair of base blocks (10) are fixed to the bottom end of the cavity ring (2), the bottom end of the base blocks (10) is attached to the vertical cylinder (11), and a pair of bolts (12) are inserted into the lower surface of the base plate (1), the bolts (12) pass through the base plate (1) and the vertical cylinder (11) in sequence and are threadedly connected to the base blocks (10).

4. A limiter for processing metal bellows according to claim 1, characterized in that: The protective mechanism includes: multiple elastic strips (13), which are evenly distributed on the inner wall of the soft bag (3). The elastic strips (13) are connected to the soft bag (3) through a second adhesive layer (14). The elastic strips (13) are spun from yarn (16), which is composed of elastic yarn (161) and strong yarn (162). The elastic yarn (161) and strong yarn (162) are twisted together.

5. A limiter for processing metal bellows according to claim 4, characterized in that: Multiple anti-slip balls (15) are fixed to the surface of the elastic strip (13) away from the cavity ring (2).

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