CN111022456A - Vacuumizing type heating bonding device and using method thereof - Google Patents
Vacuumizing type heating bonding device and using method thereof Download PDFInfo
- Publication number
- CN111022456A CN111022456A CN201911406055.1A CN201911406055A CN111022456A CN 111022456 A CN111022456 A CN 111022456A CN 201911406055 A CN201911406055 A CN 201911406055A CN 111022456 A CN111022456 A CN 111022456A
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- silica gel
- door
- aluminum plate
- skin
- heating blanket
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- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000741 silica gel Substances 0.000 claims abstract description 65
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 65
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 55
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 55
- 239000004744 fabric Substances 0.000 claims abstract description 34
- 238000005086 pumping Methods 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000004809 Teflon Substances 0.000 claims abstract description 5
- 229920006362 Teflon® Polymers 0.000 claims abstract description 5
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
The invention relates to a vacuumizing type heating and bonding device, wherein a breathable fabric, a heating blanket, an aluminum plate and a door plate are positioned between two rubber sheets, the aluminum plate is positioned on the outer side of the door plate, the heating blanket is positioned on the outer side of the aluminum plate, and the breathable fabric is positioned on the outer side of the heating blanket; the joint part of the two silica gel skins is fixed by a clamp; the air pipe joint is arranged on the silica gel skin on the upper layer; both sides of the aluminum plate are coated with Teflon; the size of the silica gel skin is larger than that of the door panel, the size of the breathable fabric is larger than that of the door panel and smaller than that of the silica gel skin, and the size of the aluminum plate is consistent with that of the door panel; the application method of the vacuum-pumping type heating bonding device comprises door plate gluing preparation, lower layer preparation, upper layer preparation, connecting circuit, clamp sealing, air suction, heating and door plate taking out. According to the invention, the silica gel skin is adopted for sealing, so that dies on two sides are saved, and the heating time is saved; fixing the door plate during the glue curing period by utilizing vacuum negative pressure; meanwhile, the door plate is directly heated by the heating blanket, the processing period is short, the cost is low, and the energy utilization rate is improved.
Description
Technical Field
The invention relates to a vacuum-pumping type heating and bonding device and a using method thereof, in particular to a vacuum-pumping type heating and bonding device for a door plate of a rail transit vehicle and a using method thereof. Belongs to the technical field of railway vehicles.
Background
The door plate with the sandwich structure can be widely applied to safety door leaves with safety requirements of sound insulation, heat insulation, fire prevention and the like of rail transit vehicle doors, safety platform doors, elevator doors and the like.
The door plate is composed of the following main parts:
1. the door frame is an aluminum frame or a stainless steel frame and is connected through processes such as welding, riveting, threaded connection and the like. Ensuring the shape and basic contour of the door leaf.
2. The interior filler is scene filler such as aluminium honeycomb, foamed aluminium and cystosepiment. The sound-proof, heat-insulating and fireproof functions are realized. Can provide good compression support and provide strength and special functions on the premise of ensuring light weight of the door leaf.
3. The door skin is an appearance part of the door plate and is made of stainless steel or aluminum materials. Stainless steel is often drawn wire and is handled and guarantee beautifully, and aluminum plate is often made paint and is guaranteed beautifully and durability.
4. The adhesive is used for bonding the door skin, the frame and the aluminum honeycomb into a whole, so that the door plate structure with attractive appearance and better integral rigidity is obtained.
The existing method for manufacturing the door plate with the sandwich structure adopts a pressing machine method, uses hydraulic equipment and machines and manufactures an upper die and a lower die according to the radian of the door plate. The door plate is placed between the upper die and the lower die, heat is conducted to the door plate through heating the upper die and the lower die, and the door skin and the frame are ensured to be attached and fixed in the glue curing process through the pressure of the pressing machine.
The above method has the following problems: 1. because the door plant overall dimension is big, and the shape is complicated, corresponding press die and evacuation mould all need process through the milling machine. The processing period is long and the cost is high; 2. during heating, a large part of the heat is used for the temperature rise on the mold. The heating speed is slow, energy is wasted, and the utilization rate of effective energy is low; 3. different molds are needed for the door leaves with different shapes, and the universality is not strong.
Disclosure of Invention
The invention aims to overcome the defects and provides a vacuumizing type heating bonding device and a using method thereof.
The purpose of the invention is realized as follows:
a vacuum-pumping type heating and bonding device is characterized in that: comprises a clamp, a silica gel sheet, a gas pipe joint, a breathable fabric, a heating blanket and an aluminum plate; the breathable fabric, the heating blanket, the aluminum plate and the door plate are positioned between the two rubber sheets, the aluminum plate is positioned on the outer side of the door plate, the heating blanket is positioned on the outer side of the aluminum plate, and the breathable fabric is positioned on the outer side of the heating blanket;
the silica gel skin comprises an upper silica gel skin and a lower silica gel skin, and the joint part of the two silica gel skins is fixed by a clamp;
the air pipe joint is arranged on the silica gel skin on the upper layer;
both sides of the aluminum plate are coated with Teflon, and the aluminum plate is provided with air holes;
each side of the silica gel skin is larger than the door plate by 100-200mm, the size of the breathable fabric is larger than that of the door plate, the size of the breathable fabric is smaller than that of the silica gel skin, and the size of the aluminum plate is consistent with that of the door plate.
Further, the thickness of the silica gel skin is 2 mm.
Further, the device comprises a vacuum-pumping machine, wherein the vacuum-pumping machine is connected with the air pipe connector through an air pipe pipeline.
Further, the breathable fabric is cotton or linen and is 0.5mm thick.
Further, the device comprises a control panel which is respectively connected with the vacuum-pumping machine and the heating blanket.
The use method of the vacuumized heating bonding device comprises the following steps:
s1, door panel gluing preparation: the door plate comprises an inner door skin, an outer door skin, a door frame and fillers, wherein the inner door skin and the outer door skin are uniformly coated with adhesives;
s2, lower layer preparation: firstly, paving the silica gel skin on the lower layer on a workbench, then paving the breathable fabric on the lower layer, and then fixing the heating blanket on the lower layer on the aluminum plate; the lower heating blanket is placed on the lower breathable fabric, the lower aluminum plate is placed on the lower heating blanket, and finally the lower side of the door panel in S1 is placed on the lower aluminum plate;
s3: preparing an upper layer: an upper aluminum plate is placed on the upper side of the door panel, an upper heating blanket is placed on the upper aluminum plate, then the upper breathable fabric is covered, and finally the upper silica gel skin is covered;
s4: connecting a line: the joint of the heating blanket penetrates through the wiring port at the joint of the upper layer silica gel skin and the lower layer silica gel skin and then is connected with the control panel;
s5: and (3) sealing the clip: the peripheral edges of the upper layer of silica gel skin and the lower layer of silica gel skin are fixed by clips;
s6, air extraction: connecting the air pipe joint with a vacuumizing machine, connecting the joint of the vacuumizing machine with a control panel, starting air suction of the vacuumizing machine, maintaining the pressure to be about-40 to-60 kpa, and if the pressure is insufficient, paying attention to check whether the wiring port is seriously leaked, and performing air suction, leakage and balance;
s7, heating: after the pressure is balanced in S6, turning on a switch of the heating blanket for heating;
s8, taking out the door panel: and after the adhesive is cured, closing the heating blanket, closing the vacuumizing machine, taking down the clamp, taking down the silica gel skin, the breathable fabric, the heating blanket and the aluminum plate layer by layer, finally taking out the door plate, and preparing to begin to manufacture the next product.
Compared with the prior art, the invention has the beneficial effects that:
according to the vacuumizing type heating bonding device and the using method thereof, the silica gel sheet is adopted for sealing, so that molds on two sides are omitted, and the heating time is saved; fixing the door plate during the glue curing period by utilizing vacuum negative pressure; meanwhile, the door plate is directly heated by the heating blanket, the processing period is short, the cost is low, and the energy utilization rate is improved.
Drawings
Fig. 1 is a schematic view of a vacuuming type heating bonding device according to the present invention.
In the figure:
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1, the invention relates to a vacuumized heating and bonding device, which comprises a control panel, a vacuumizer, a clamp 2, a silica gel sheet 3, a gas pipe joint 4, a breathable fabric 5, a heating blanket 6 and an aluminum plate 7; the breathable fabric 5, the heating blanket 6, the aluminum plate 7 and the door panel 1 are positioned between the two rubber sheets 3, the aluminum plate 7 is positioned on the outer side of the door panel 1, the heating blanket 6 is positioned on the outer side of the aluminum plate 7, the breathable fabric 5 is positioned on the outer side of the heating blanket 6, and the middle part of the heating blanket 6 is provided with an air suction hole 6.1;
the thickness of the silica gel skin 3 is 2mm, the silica gel skin 3 comprises an upper silica gel skin and a lower silica gel skin, one silica gel skin is directly paved below, the other silica gel skin covers the upper cover, the joint part of the two silica gel skins 3 is fixed by a clamp to ensure that the two silica gel skins are in a semi-closed state during vacuum pumping, the relative position of the door plate 1 cannot be influenced by the silica gel skin in the semi-closed state, and the reason that the silica gel skin 3 is not made into a closed bag is that the door plate 1 is very easy to move because the glue is not solidified when being placed into the two silica gel skins 3;
the air pipe connector 4 is arranged on the upper layer of the silica gel sheet 3, the vacuumizing machine 2 is connected with the air pipe connector 4 through an air pipe, and the vacuumizing machine 2 provides negative pressure;
the air-permeable fabric 5 is cotton or linen, has a thickness of 0.5mm, and is used for assisting air flow. The part of the silica gel skin 3 is prevented from being pasted on the aluminum plate 7, and the local part of the door plate 1 is prevented from having negative pressure;
the control panel 1 is respectively connected with the vacuum-pumping machine 2 and the heating blanket 6 and is used for controlling the vacuum-pumping machine 2 and the heating blanket 6 and providing temperature control, pressure control and time control;
the heating blanket 6 provides a heat source for the curing of the glue. The heating blanket 6 is connected with the control panel 1 through a quick connector;
The application method of the vacuumized heating bonding device comprises the following steps:
s1, door panel gluing preparation: the door plate 1 comprises an inner door skin, an outer door skin, a door frame and fillers, wherein the inner door skin and the outer door skin are uniformly coated with adhesives, then the door frame is placed on the outer door skin firstly, then the fillers are placed, finally the inner door skin is placed on the door frame, and the door skin is simply fixed by the masking paper, so that the whole door plate 1 is prepared;
s2, lower layer preparation: firstly, the lower layer of silica gel skin 3 is tiled on a workbench, each side of the silica gel skin 3 is larger than the door plate by 100-200mm, so that after the clamp 2 is clamped, the two layers of silica gel skins 3 can be attached under the action of vacuum to play a role of sealing; laying a lower layer of breathable fabric 5, wherein the size of the breathable fabric 5 is larger than that of the door panel 1 and smaller than that of the silica gel skin 3; then fixing the lower heating blanket 6 on the lower aluminum plate 7; placing the heating blanket 6 on the breathable fabric 5, placing the lower aluminum plate 7 on the lower heating blanket 6, and finally placing the lower side of the door panel 1 in the step S1 on the lower aluminum plate 7, wherein the size of the lower aluminum plate 7 is consistent with that of the door panel 1, otherwise, the door panel 1 can deform under vacuum pressure;
s3: preparing an upper layer: an upper aluminum plate 7 is placed on the upper side of the door panel 1, an upper heating blanket 6 is placed on the upper aluminum plate 7, then an upper breathable fabric 5 is covered, and finally an upper silica gel skin 3 is covered; wherein the sizes of the aluminum plates 7 of the upper layer and the lower layer are consistent, the sizes of the breathable fabrics 5 of the upper layer and the lower layer are consistent, the sizes of the heating blankets 6 of the upper layer and the lower layer are consistent, the sizes of the silica gel skins 3 of the upper layer and the lower layer are consistent,
s4: connecting a line: the joint of the heating blanket 6 is connected with the control panel after penetrating through the wiring port at the joint of the upper layer silica gel skin 3 and the lower layer silica gel skin 3;
s5: and (3) sealing the clip: the peripheral edges of the upper layer and the lower layer of silica gel skin 3 are fixed by clips 2.
S6, air extraction: the air pipe joint 4 is connected with the vacuum-pumping machine 2, the joint of the vacuum-pumping machine 2 is connected with the control panel, the vacuum-pumping machine 2 starts to pump air, and the pressure is maintained at about-40 to-60 kpa. If the pressure is insufficient, the wiring port is inspected to determine whether the leakage is serious. Air extraction, leakage and balance are achieved. If the tightness is poor and the pressure does not reach the standard, gaps can be formed on part of the doorskins. If the tightness is too good, the vacuum extractor 2 is stopped when the pressure is reached, the pressure leaks and works again, fluctuation can be generated in the process, the risk of short-time pressure loss can be generated, and the door skin also has the risk of generating gaps;
s7, heating: after the pressure is balanced in the S6, turning on a switch of the heating blanket 6 for heating, and setting the temperature and time according to the performance of the adhesive;
s8, taking out the door panel: and after the curing requirement of the adhesive is met, closing the heating blanket 6, closing the vacuumizing machine 2, taking down the clamp 2, taking down the silica gel skin 3, the breathable fabric 5, the heating blanket 6 and the aluminum plate 7 layer by layer, and finally taking out the door plate 1 to prepare for manufacturing the next product.
The invention has simple structure, adopts the silica gel skin 3 for sealing, saves moulds on two sides and saves the heating time; fixing the door panel 1 during the glue curing period by utilizing vacuum negative pressure; meanwhile, the door panel 1 is directly heated by the heating blanket 6, the processing period is short, the cost is low, and the energy utilization rate is improved.
In the above embodiments, the present invention is described only by way of example, but those skilled in the art, after reading the present patent application, may make various modifications to the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a vacuum-pumping formula heating bonding device which characterized in that: comprises a clamp, a silica gel sheet, a gas pipe joint, a breathable fabric, a heating blanket and an aluminum plate; the silica gel skin comprises an upper silica gel skin and a lower silica gel skin, the breathable fabric, the heating blanket, the aluminum plate and the door plate are positioned between the two silica gel skins, the aluminum plate is positioned on the outer side of the door plate, the heating blanket is positioned on the outer side of the aluminum plate, and the breathable fabric is positioned on the outer side of the heating blanket;
the joint part of the two silica gel skins is fixed by a clamp;
the air pipe joint is arranged on the silica gel skin on the upper layer;
both sides of the aluminum plate are coated with Teflon, and the aluminum plate is provided with air holes;
each side of the silica gel skin is larger than the door plate by 100-200mm, the size of the breathable fabric is larger than that of the door plate, the size of the breathable fabric is smaller than that of the silica gel skin, and the size of the aluminum plate is consistent with that of the door plate.
2. The evacuated heat bonding device according to claim 1, wherein: the thickness of the silica gel skin is 2 mm.
3. The evacuated heat bonding device according to claim 1, wherein: comprises a vacuum-pumping machine which is connected with an air pipe joint through an air pipe pipeline.
4. The evacuated heat bonding device according to claim 1, wherein: the breathable fabric is cotton or linen and has a thickness of 0.5 mm.
5. The evacuated heat bonding device according to claim 1, wherein: comprises a control panel which is respectively connected with a vacuumizer and a heating blanket.
6. The application method of the vacuumized heating bonding device is characterized in that: the method comprises the following steps:
s1, door panel gluing preparation: the door plate comprises an inner door skin, an outer door skin, a door frame and fillers, wherein the inner door skin and the outer door skin are uniformly coated with adhesives;
s2, lower layer preparation: firstly, paving the silica gel skin on the lower layer on a workbench, then paving the breathable fabric on the lower layer, and then fixing the heating blanket on the lower layer on the aluminum plate; the lower heating blanket is placed on the lower breathable fabric, the lower aluminum plate is placed on the lower heating blanket, and finally the lower side of the door panel in S1 is placed on the lower aluminum plate;
s3: preparing an upper layer: an upper aluminum plate is placed on the upper side of the door panel, an upper heating blanket is placed on the upper aluminum plate, then the upper breathable fabric is covered, and finally the upper silica gel skin is covered;
s4: connecting a line: the joint of the heating blanket penetrates through the wiring port at the joint of the upper layer silica gel skin and the lower layer silica gel skin and then is connected with the control panel;
s5: and (3) sealing the clip: the peripheral edges of the upper layer of silica gel skin and the lower layer of silica gel skin are fixed by clips;
s6, air extraction: connecting the air pipe joint with a vacuumizing machine, connecting the joint of the vacuumizing machine with a control panel, starting air suction of the vacuumizing machine, maintaining the pressure to be about-40 to-60 kpa, and if the pressure is insufficient, paying attention to check whether the wiring port is seriously leaked, and performing air suction, leakage and balance;
s7, heating: after the pressure is balanced in S6, turning on a switch of the heating blanket for heating;
s8, taking out the door panel: and after the adhesive is cured, closing the heating blanket, closing the vacuumizing machine, taking down the clamp, taking down the silica gel skin, the breathable fabric, the heating blanket and the aluminum plate layer by layer, finally taking out the door plate, and preparing to begin to manufacture the next product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406055.1A CN111022456B (en) | 2019-12-31 | 2019-12-31 | Vacuumizing type heating bonding device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911406055.1A CN111022456B (en) | 2019-12-31 | 2019-12-31 | Vacuumizing type heating bonding device and using method thereof |
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| Publication Number | Publication Date |
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| CN111022456A true CN111022456A (en) | 2020-04-17 |
| CN111022456B CN111022456B (en) | 2024-03-08 |
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