CN113290109B - Pressing process of fireproof valve blade - Google Patents
Pressing process of fireproof valve blade Download PDFInfo
- Publication number
- CN113290109B CN113290109B CN202110571230.3A CN202110571230A CN113290109B CN 113290109 B CN113290109 B CN 113290109B CN 202110571230 A CN202110571230 A CN 202110571230A CN 113290109 B CN113290109 B CN 113290109B
- Authority
- CN
- China
- Prior art keywords
- fireproof valve
- blade
- valve blade
- sides
- fireproof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 8
- 235000014676 Phragmites communis Nutrition 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/026—Reinforcing the connection by locally deforming
Abstract
The invention discloses a pressing process of fireproof valve blades, which comprises the following steps: s1, punching a first fireproof valve blade through a first die, and punching a second fireproof valve blade through a second die; s2, the first fireproof valve blade is overturned and placed above the second fireproof valve blade; s3, respectively inserting leaf spring pieces into two sides of the first fireproof valve leaf and the second fireproof valve leaf; s4, pressing two sides of the second fireproof valve blade through a third die to enable two sides of the first fireproof valve blade, two sides of the second fireproof valve blade and the blade spring piece to be tightly connected, and enabling the first fireproof valve blade to be tightly attached to the second fireproof valve blade to form a double-layer fireproof valve blade; compared with the prior art, the invention has the following advantages: according to the invention, the bulges and the depressions with different depths are pressed, so that the strength and the tightness of the double-layer fireproof valve blade are improved, and the combined double-layer fireproof valve blade is not easy to loosen.
Description
Technical Field
The invention relates to the field of fireproof valve blade processing, in particular to a fireproof valve blade pressing process.
Background
The manufacturing dimensional accuracy of the blade is a key process and technology for controlling the air tightness of the fireproof valve, improving the fireproof reliability of the fireproof valve and reducing the full-open air resistance coefficient; in order to meet the overall air tightness and pressure drop requirements of the valve, the smoothness and compactness between the leaf spring piece and the leaf need to be ensured, and the sealing element is not bent and skewed; the existing double-layer blade is easy to be uneven and not compact due to the processing problem, most of the spring pieces added on two sides of the double-layer blade are U-shaped spring pieces, only one bending piece is arranged on the spring pieces, displacement is easy to occur in the pressing process, the two blades are not tightly meshed, the sealing performance is poor, and the combined blades are easy to loosen.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a pressing process of a fireproof valve blade with simple process and tight sealing and engagement of a spring piece.
In order to achieve the above object, the present invention adopts the following technical scheme:
the pressing process of the fireproof valve blade comprises the following steps of: s1, punching a first fireproof valve blade through a first die, and punching a second fireproof valve blade through a second die; s2, the first fireproof valve blade is overturned and placed above the second fireproof valve blade; s3, respectively inserting leaf spring pieces into two sides of the first fireproof valve leaf and the second fireproof valve leaf; s4, pressing two sides of the second fireproof valve blade through a third die, so that two sides of the first fireproof valve blade, two sides of the second fireproof valve blade and the blade spring piece are tightly connected, the first fireproof valve blade and the second fireproof valve blade are tightly attached, and a double-layer fireproof valve blade is formed.
As a further preferred aspect of the present invention, in the step S1, the first fire-proof valve blade has the same structure as the second fire-proof valve blade, and the first fire-proof valve blade includes a first horizontal portion, second horizontal portions symmetrically disposed at both sides of the first horizontal portion, and a connecting portion for connecting the first horizontal portion and the second horizontal portion, and the second horizontal portion is provided with a crimp away from the first horizontal portion.
As a further preferred aspect of the present invention, in the step S2, a cavity is formed between the first fireproof blade and the second fireproof blade, and a supporting device is disposed in the cavity.
As a further preferred aspect of the present invention, in the step S2, the leaf spring piece includes a first leaf spring and a second leaf spring, the first leaf spring and the second leaf spring are symmetrically disposed, a connection surface of the first leaf spring and the second leaf spring is coated with strong glue, and an outer side of the connection surface of the first leaf spring and the second leaf spring is connected by welding.
As a further preferred aspect of the present invention, the specific pressing process in step S4 is the following steps: s4.1, the upper dies on the two sides move downwards to press the two sides of the second fireproof valve blade for the first time, so that the two sides of the first fireproof valve blade, the two sides of the second fireproof valve blade and the blade spring piece are tightly connected, and the first fireproof valve blade and the second fireproof valve blade are tightly attached; the upper dies on the two sides after the first pressing are stopped, so that the fireproof valve blade is fixed; s4.2, the upper die and the lower die on two sides of the middle part move simultaneously, so that protrusions and depressions are formed at the joint of the second fireproof valve blade and the first fireproof valve blade.
As a further preferred aspect of the present invention, the double-layer fire valve blade formed after pressing in the step S4 includes a first protrusion, a first recess, a second protrusion, a cavity, a second recess, a third protrusion, and a third recess, wherein the cavity is disposed in the middle, the first protrusion, the first recess, and the second protrusion are disposed on one side of the cavity, and the second recess, the third protrusion, and the third recess are disposed on the other side of the cavity.
The invention has the advantages that: the invention has simple process and convenient operation; the processing and the combination of single products can be rapidly completed by arranging three groups of dies, so that the working efficiency is effectively improved; under the condition that the flatness of the fireproof valve blades can be guaranteed through the third die, the first fireproof valve blades and the second fireproof valve blades are pressed, protrusions and recesses with different depths are manufactured through pressing, the strength and the sealing performance of the double-layer fireproof valve blades are improved, and meanwhile the double-layer fireproof valve blades are not easy to loosen after being combined; through setting up the blade spring leaf of buckling more, can effectually connect first fire prevention valve blade and second fire prevention valve blade, be difficult for appearing the displacement during the suppression, can guarantee that two fire prevention valve blades are inseparable interlock, be difficult for not hard up, improve holistic reliability.
Drawings
FIG. 1 is a schematic view of the structure of the present invention prior to pressing;
FIG. 2 is a schematic view of the pressed structure of the present invention;
fig. 3 is a schematic view of the structure of the leaf spring.
Meaning of reference numerals in the drawings: 1. the fire-proof valve comprises a first fire-proof valve blade, 101, a first horizontal part, 102, a second horizontal part, 103, a connecting part, 104, a bent edge, 2, a second fire-proof valve, 3, a blade spring piece, 4 and a double-layer fire-proof valve blade.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
The pressing process of the fireproof valve blade comprises the following steps of:
s1, punching out a first fireproof valve blade 1 through a first die, and punching out a second fireproof valve blade 2 through a second die.
Referring to fig. 1, in step S1, the first fire damper blade 1 has the same structure as the second fire damper blade 2, where the first fire damper blade 1 includes a first horizontal portion 101, second horizontal portions 102 symmetrically disposed on two sides of the first horizontal portion 101, and a connecting portion 103 for connecting the first horizontal portion 101 and the second horizontal portion 102, and the second horizontal portion 102 is provided with a bent edge 104 away from the first horizontal portion 101.
S2, the first fireproof valve blade 1 is overturned and placed above the second fireproof valve blade 2; s3, respectively inserting blade spring pieces 3 at two sides of the first fireproof valve blade 1 and the second fireproof valve blade 2.
In step S2, a cavity is formed in the middle of the first fireproof blade and the middle of the second fireproof blade, and a supporting device is placed in the cavity. After stamping is completed, the second fireproof valve blade 2 is placed on the lower die of the third die, and a supporting device is placed in the middle of the second fireproof valve blade 2, so that the supporting device is large and can be lifted by a crane, then the first fireproof valve blade 1 is placed above the second fireproof valve blade 2, the height of the supporting device is adjusted, two ends of the first fireproof valve blade 1 are contacted with two sides of the second fireproof valve blade 2, and the supporting device is placed, so that the cavity is effectively prevented from being changed when the pressing is performed, and the overall production completion rate is improved; the blade spring piece 3 is inserted from one end to the other end and is inserted between the first fireproof valve blade 1 and the second fireproof valve blade 2, and at this time, gaps are formed between the first fireproof valve blade 1, the second fireproof valve blade 2 and the blade spring piece 3.
The blade spring piece 3 includes first reed and second reed, first reed and second reed symmetry set up, the structure of first reed and second reed is the same, first reed includes first diaphragm, second diaphragm and third diaphragm, first diaphragm is connected with the third diaphragm through first riser, the third diaphragm passes through the second riser and is connected with the second diaphragm, the second diaphragm sets up between first diaphragm and third diaphragm, distance between first diaphragm and the second diaphragm, distance between second diaphragm and the third diaphragm all is greater than the plate thickness of first fire damper blade 1, the thickness of second diaphragm is less than Yu Xiaoyu first fire damper crimp 104, distance between first riser and the second riser is greater than the width of crimp 104.
The third diaphragm of first reed outside coating has powerful glue, is connected through powerful glue and the third diaphragm outside of second reed, the outside connection clearance of first reed and second reed fills through the welding and is connected, can effectually increase the bulk strength of blade spring piece 3, improves the life of part.
S4, pressing two sides of the second fireproof valve blade 2 through a third die, so that two sides of the first fireproof valve blade 1, two sides of the second fireproof valve blade 2 and the blade spring piece 3 are tightly connected, the first fireproof valve blade 1 and the second fireproof valve blade 2 are tightly attached, and a double-layer fireproof valve blade 4 is formed.
The specific pressing process in the step S4 comprises the following steps: s4.1, the upper dies on the two sides move downwards to press the two sides of the second fireproof valve blade 2 for the first time, so that the two sides of the first fireproof valve blade 1, the two sides of the second fireproof valve blade 2 and the blade spring piece 3 are tightly connected, and the first fireproof valve blade 1 and the second fireproof valve blade 2 are tightly attached; the upper dies on the two sides after the first pressing are stopped, so that the fireproof valve blade is fixed; s4.2, the upper die and the lower die on two sides of the middle part move simultaneously, so that the joint of the second fireproof valve blade 2 and the first fireproof valve blade 1 forms a bulge and a recess.
The double-layer fireproof valve blade 4 formed after pressing in the step S4 comprises a first bulge, a first recess, a second bulge, a cavity, a second recess, a third bulge and a third recess, wherein the cavity is arranged in the middle, the first bulge, the first recess and the second bulge are arranged on one side of the cavity, and the second bulge, the third bulge and the third recess are arranged on the other side of the cavity.
The invention has the advantages that: the invention has simple process and convenient operation; the processing and the combination of single products can be rapidly completed by arranging three groups of dies, so that the working efficiency is effectively improved; under the condition that the flatness of the fireproof valve blades can be ensured through the third die, the first fireproof valve blade 1 and the second fireproof valve blade 2 are pressed, the bulges and the hollows with different depths are formed through pressing, the strength and the tightness of the double-layer fireproof valve blade 4 are improved, and meanwhile, the double-layer fireproof valve blade is not easy to loosen after being combined; through setting up the blade leaf spring 3 of buckling more, can the effectual first fire prevention valve blade 1 of connection and second fire prevention valve blade 2, be difficult for appearing the displacement during the suppression, can guarantee two fire prevention valve blades and closely interlock, be difficult for not hard up, improve holistic reliability.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (4)
1. The pressing process of the fireproof valve blade is characterized by comprising the following steps of:
s1, punching a first fireproof valve blade through a first die, and punching a second fireproof valve blade through a second die; the first fireproof valve blade and the second fireproof valve blade have the same structure, the first fireproof valve blade comprises a first horizontal part, second horizontal parts symmetrically arranged on two sides of the first horizontal part and a connecting part for connecting the first horizontal part and the second horizontal part, and the second horizontal part is far away from the first horizontal part and is provided with a bent edge;
s2, the first fireproof valve blade is overturned and placed above the second fireproof valve blade;
s3, respectively inserting leaf spring pieces into two sides of the first fireproof valve leaf and the second fireproof valve leaf; the blade spring piece comprises a first reed and a second reed, the first reed and the second reed are symmetrically arranged, the structures of the first reed and the second reed are the same, the first reed comprises a first transverse plate, a second transverse plate and a third transverse plate, the first transverse plate is connected with the third transverse plate through a first vertical plate, the third transverse plate is connected with the second transverse plate through a second vertical plate, the second transverse plate is arranged between the first transverse plate and the third transverse plate, the distance between the first transverse plate and the second transverse plate and the distance between the second transverse plate and the third transverse plate are both larger than the plate thickness of the first fireproof valve blade, the thickness of the second transverse plate is smaller than the thickness of the bent edge of the first fireproof valve Yu Xiaoyu, and the distance between the first vertical plate and the second vertical plate is larger than the width of the bent edge; the connecting surfaces of the first reed and the second reed are coated with strong glue, and the outer sides of the connecting surfaces of the first reed and the second reed are connected through welding;
s4, pressing two sides of the second fireproof valve blade through a third die, so that two sides of the first fireproof valve blade, two sides of the second fireproof valve blade and the blade spring piece are tightly connected, the first fireproof valve blade and the second fireproof valve blade are tightly attached, and a double-layer fireproof valve blade is formed.
2. The pressing process of the fire damper blade according to claim 1, wherein in the step S2, a cavity is formed between the first fire damper blade and the second fire damper blade, and a supporting device is disposed in the cavity.
3. The pressing process of the fireproof valve blade according to claim 1, wherein the specific pressing process of step S4 is the following steps: s4.1, the upper dies on the two sides move downwards to press the two sides of the second fireproof valve blade for the first time, so that the two sides of the first fireproof valve blade, the two sides of the second fireproof valve blade and the blade spring piece are tightly connected, and the first fireproof valve blade and the second fireproof valve blade are tightly attached; the upper dies on the two sides after the first pressing are stopped, so that the fireproof valve blade is fixed; s4.2, the upper die and the lower die on two sides of the middle part move simultaneously, so that protrusions and depressions are formed at the joint of the second fireproof valve blade and the first fireproof valve blade.
4. The pressing process of the fire damper blade according to claim 3, wherein the double-layer fire damper blade formed after the pressing in the step S4 includes a first protrusion, a first recess, a second protrusion, a cavity, a second recess, a third protrusion and a third recess, the cavity is disposed in the middle, the first protrusion, the first recess and the second protrusion are disposed on one side of the cavity, and the second recess, the third protrusion and the third recess are disposed on the other side of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571230.3A CN113290109B (en) | 2021-05-25 | 2021-05-25 | Pressing process of fireproof valve blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571230.3A CN113290109B (en) | 2021-05-25 | 2021-05-25 | Pressing process of fireproof valve blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113290109A CN113290109A (en) | 2021-08-24 |
| CN113290109B true CN113290109B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110571230.3A Active CN113290109B (en) | 2021-05-25 | 2021-05-25 | Pressing process of fireproof valve blade |
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| CN (1) | CN113290109B (en) |
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| Title |
|---|
| 基于有限元模拟优化技术的叶片冲压成形工艺研究;史亚贝;;机械制造;20150720(第07期);第76-78页 * |
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| CN113290109A (en) | 2021-08-24 |
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