CN113290109A - Pressing process of fireproof valve blade - Google Patents
Pressing process of fireproof valve blade Download PDFInfo
- Publication number
- CN113290109A CN113290109A CN202110571230.3A CN202110571230A CN113290109A CN 113290109 A CN113290109 A CN 113290109A CN 202110571230 A CN202110571230 A CN 202110571230A CN 113290109 A CN113290109 A CN 113290109A
- 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.)
- Granted
Links
- 238000003825 pressing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 8
- 230000007306 turnover Effects 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 235000014676 Phragmites communis Nutrition 0.000 description 11
- 230000002265 prevention Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 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
- 230000009970 fire resistant effect Effects 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a pressing process of a fireproof valve blade, 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, placing the first fireproof valve blade above the second fireproof valve blade in a turnover mode; s3, inserting leaf spring pieces on two sides of the first fireproof valve leaf and the second fireproof valve leaf respectively; 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 and the second fireproof valve blade to be tightly attached to form a double-layer fireproof valve blade; compared with the prior art, the invention has the advantages that: according to the invention, the bulges and the depressions with different depths are pressed, so that the strength and the sealing property of the double-layer fireproof valve blade are improved, and the double-layer fireproof valve blade is not easy to loosen after being combined.
Description
Technical Field
The invention relates to the field of fireproof valve blade machining, in particular to a pressing process of a fireproof valve blade.
Background
The manufacturing size precision of the blade is a key process and technology for controlling the air tightness of the fire damper, improving the fire-resistant reliability of the fire damper and reducing the fully-opened air resistance coefficient; in order to meet the requirements of integral air tightness and pressure drop of the valve, the flat and compact between the leaf spring pieces and the leaves are ensured, and the sealing elements are not bent and inclined; the existing double-layer blade is not smooth and compact due to the fact that machining problems are prone to occurring, most of spring pieces added on two sides of the double-layer blade are U-shaped spring pieces, the spring pieces are bent only one time, displacement is prone to occurring in the pressing process, and accordingly meshing between the two blades is not tight, sealing performance is poor, and the blades are prone to loosening after combination.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a pressing process of a fireproof valve blade, which is simple in process and tight in sealing and meshing of a spring piece.
In order to achieve the above object, the present invention adopts the following technical solutions:
a pressing process of a fireproof valve blade 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, placing the first fireproof valve blade above the second fireproof valve blade in a turnover mode; s3, inserting leaf spring pieces on two sides of the first fireproof valve leaf and the second fireproof valve leaf respectively; s4, pressing the two sides of the second fireproof valve blade through a third die, enabling the two sides of the first fireproof valve blade, the two sides of the second fireproof valve blade and the blade spring piece to be tightly connected, enabling the first fireproof valve blade to be tightly attached to the second fireproof valve blade, and forming a double-layer fireproof valve blade.
As a further preferred aspect of the present invention, in step S1, the first fire damper blade and the second fire damper blade have the same structure, the first fire damper 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 bent edge away from the first horizontal portion.
As a further preferred embodiment of the present invention, in step S2, a cavity is formed between the first fireproof vane and the second fireproof vane, and a supporting device is placed in the cavity.
As a further preferable aspect of the present invention, in step S2, the blade spring plate includes a first spring plate and a second spring plate, the first spring plate and the second spring plate are symmetrically disposed, a connection surface between the first spring plate and the second spring plate is coated with a strong glue, and an outer side of the connection surface between the first spring plate and the second spring plate is connected by welding.
As a further preferred aspect of the present invention, the step S4 is a step of a specific pressing process, which includes: 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 is tightly attached to the second fireproof valve blade; after the first pressing, the upper dies on the two sides stop moving, and the fireproof valve blades are fixed; and S4.2, simultaneously moving the upper die and the lower die on the two sides of the middle part to enable the joint of the second fireproof valve blade and the first fireproof valve blade to form bulges and depressions.
As a further preferable aspect of the present invention, the double-layer fire damper blade formed after pressing in 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.
The invention has the advantages that: the invention has simple process and convenient operation; the processing and combination of single products can be rapidly finished by arranging the three groups of dies, so that the working efficiency is effectively improved; the first fireproof valve blade and the second fireproof valve blade can be pressed through the third die under the condition that the flatness of the fireproof valve blades is guaranteed, and the bulges and the depressions with different depths are pressed, so that the strength and the sealing property of the double-layer fireproof valve blades are improved, and 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 first fire prevention valve blade of effectual connection and second fire prevention valve blade, the displacement is difficult for appearing during the suppression, can guarantee that two fire prevention valve blades are closely interlock, and difficult not hard up improves holistic reliability.
Drawings
FIG. 1 is a schematic of the pre-press structure of the present invention;
FIG. 2 is a schematic representation of the structure of the present invention after pressing;
fig. 3 is a schematic structural view of the leaf spring plate.
The meaning of the reference symbols in the figures: 1. the fireproof valve comprises a first fireproof valve blade, 101, a first horizontal part, 102, a second horizontal part, 103, a connecting part, 104, a bent edge, 2, a second fireproof valve, 3, a blade spring piece, 4 and a double-layer fireproof valve blade.
Detailed Description
The invention is described in detail below with reference to the figures and the embodiments.
A pressing process of a fireproof valve blade comprises the following steps:
and S1, punching the first fireproof valve blade 1 through the first die, and punching the second fireproof valve blade 2 through the second die.
Referring to fig. 1, in step S1, a first fire damper blade 1 and a second fire damper blade 2 have the same structure, where the first fire damper blade 1 includes a first horizontal portion 101, second horizontal portions 102 symmetrically disposed at 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, placing the first fireproof valve blade 1 above the second fireproof valve blade 2 in an overturning manner; s3, inserting a leaf spring piece 3 on each side of the first fire damper leaf 1 and the second fire damper leaf 2.
In step S2, a cavity is formed between the first fireproof vane and the second fireproof vane, and a supporting device is placed in the cavity. After stamping is completed, the second fireproof valve blade 2 is placed on a lower die of a third die, a supporting device is placed in the middle of the second fireproof valve blade 2, 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 in contact with two sides of the second fireproof valve blade 2, and the supporting device is placed, so that cavities can be effectively prevented from being changed when pressing is performed, and the production completion rate of the whole body is improved; the leaf spring piece 3 is inserted from one end to the other end and is inserted between the first fireproof valve leaf 1 and the second fireproof valve leaf 2, and at the moment, gaps are reserved among the first fireproof valve leaf 1, the second fireproof valve leaf 2 and the leaf spring piece 3.
The outside coating of the third diaphragm of first reed has powerful glue, is connected through the third diaphragm outside of powerful glue with the second reed, the external connection clearance of first reed and second reed fills through the welding and is connected, can effectual increase blade spring leaf 3's bulk strength, improves the life of part.
S4, pressing the two sides of the second fireproof valve blade 2 through a third die, and tightly connecting 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 to tightly attach the first fireproof valve blade 1 and the second fireproof valve blade 2 to form a double-layer fireproof valve blade 4.
The specific pressing process of 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 is tightly attached to the second fireproof valve blade 2; after the first pressing, the upper dies on the two sides stop moving, and the fireproof valve blades are fixed; s4.2, the upper die and the lower die on the 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 protrusion and a depression.
The double-layer fireproof valve blade 4 formed after being pressed 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 arranged in the middle, the first protrusion, the first recess and the second protrusion are arranged on one side of the cavity, and the second recess, the third protrusion 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 combination of single products can be rapidly finished by arranging the three groups of dies, so that the working efficiency is effectively improved; the first fireproof valve blade 1 and the second fireproof valve blade 2 can be pressed through the third die under the condition that the flatness of the fireproof valve blades is guaranteed, and the bulges and the depressions with different depths are formed through pressing, so that the strength and the sealing performance of the double-layer fireproof valve blade 4 are improved, and the double-layer fireproof valve blade is not easy to loosen after being combined; through setting up the blade spring leaf 3 of buckling more, can the first fire prevention valve blade 1 of effectual connection and second fire prevention valve blade 2, difficult displacement that appears during the suppression can guarantee that two fire prevention valve blades are inseparable interlock, and is difficult not hard up, improves holistic reliability.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (6)
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; s2, placing the first fireproof valve blade above the second fireproof valve blade in a turnover mode; s3, inserting leaf spring pieces on two sides of the first fireproof valve leaf and the second fireproof valve leaf respectively; s4, pressing the two sides of the second fireproof valve blade through a third die, enabling the two sides of the first fireproof valve blade, the two sides of the second fireproof valve blade and the blade spring piece to be tightly connected, enabling the first fireproof valve blade to be tightly attached to the second fireproof valve blade, and forming a double-layer fireproof valve blade.
2. The pressing process of a fire damper blade according to claim 1, wherein in step S1, the first fire damper blade has the same structure as the second fire damper blade, the first fire damper 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 bent edge away from the first horizontal portion.
3. The pressing process of a fire damper door leaf as claimed in claim 1, wherein in step S2, a cavity is formed between the first fire damper door leaf and the second fire damper door leaf, and a support device is placed in the cavity.
4. The pressing process of a fire damper blade according to claim 1, wherein in step S2, the blade spring plate includes a first spring plate and a second spring plate, the first spring plate and the second spring plate are symmetrically disposed, a connection surface of the first spring plate and the second spring plate is coated with a strong glue, and an outer side of the connection surface of the first spring plate and the second spring plate is connected by welding.
5. The pressing process of a fire damper blade according to claim 1, wherein the step S4 is specifically a step of: 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 is tightly attached to the second fireproof valve blade; after the first pressing, the upper dies on the two sides stop moving, and the fireproof valve blades are fixed; and S4.2, simultaneously moving the upper die and the lower die on the two sides of the middle part to enable the joint of the second fireproof valve blade and the first fireproof valve blade to form bulges and depressions.
6. The pressing process of a fire damper blade according to claim 5, 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 |
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| Publication Number | Publication Date |
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| CN113290109A true CN113290109A (en) | 2021-08-24 |
| CN113290109B CN113290109B (en) | 2024-04-16 |
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| CN202110571230.3A Active CN113290109B (en) | 2021-05-25 | 2021-05-25 | Pressing process of fireproof valve blade |
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2021
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| CN113290109B (en) | 2024-04-16 |
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