CN106626205B - Large polyurethane foaming part manufacturing system and method - Google Patents
Large polyurethane foaming part manufacturing system and method Download PDFInfo
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- CN106626205B CN106626205B CN201611121579.2A CN201611121579A CN106626205B CN 106626205 B CN106626205 B CN 106626205B CN 201611121579 A CN201611121579 A CN 201611121579A CN 106626205 B CN106626205 B CN 106626205B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3064—Trains
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a manufacturing method of a foaming piece, in particular to a manufacturing system and a manufacturing method of a large polyurethane foaming piece. The invention has the following advantages: 1. the production efficiency is improved by utilizing an automatic technology; 2. the lower die of the tool moves transversely, so that the production field is optimized, the die does not need to be replaced, the time is saved, and the production efficiency is improved; 3. has certain flexibility and can be used for flat plate foaming; 4. the foaming auxiliary time is short, and the production efficiency is high; 5. the foaming quality consistency of each section of the car roof is high, and the product quality is improved.
Description
Technical Field
The invention relates to a manufacturing method of a foaming piece, in particular to a manufacturing system and a manufacturing method of a large polyurethane foaming piece.
Background
At present, a manufacturing tool for a flat polyurethane foaming piece on a railway refrigeration transport vehicle mainly comprises a flat plate laminating machine and a special mold, wherein the special mold comprises a special bottom frame foaming mold, a special side wall foaming mold and a special end wall foaming mold. One mold can only manufacture a foaming piece with one specification. And after the side wall foaming piece is finished, replacing the special side wall foaming mold and continuously manufacturing the side wall foaming piece, and after the side wall foaming piece is finished, replacing the special end wall foaming mold and continuously manufacturing the end wall foaming piece. This is inefficient and requires a high investment cost for manufacturing the special mold. If a set of special mould joins in marriage a laminator, a laminator only produces the foaming piece of a specification, and the mould change time is saved to the centre, and efficiency is very high like this, and this kind of mode is applicable to extensive batched assembly line production mode, nevertheless can need three presses like this, drops into greatly, accounts for the factory building space greatly. At present, the demand of the railway refrigerator car is not large, the factory production mode is generally organized according to small-batch production, the tooling investment is saved as much as possible, and the workshop space is saved as much as possible. Therefore, it is important to find a method for effectively solving the problem of producing various flat polyurethane foaming parts in small batch.
The existing polyurethane foaming tool of the railway refrigerator car is mainly a flat plate laminating machine or a special-shaped foaming mould, a foaming flat plate mechanism of the flat plate laminating machine, and the special-shaped foaming mould needs a special mould.
The existing treatment methods mainly have the following defects:
1. when the car roof is foamed in sections, the time for hoisting, transferring and die-dropping of the crown block is long, so that the consistency of the foaming quality of each section is difficult to guarantee, and the foaming quality of the car roof is influenced. 2. And one crown block is required to participate in the whole process during foaming, so that the production organization and the cost saving of other processes are not facilitated. 3. The foaming auxiliary time is too long, and the production efficiency is low. 4. For longitudinal movement, a large production area is required. 5. When various special dies share one laminating machine, a large amount of time is wasted on die replacement, and the production efficiency is seriously influenced. 6. If the special dies are adopted to respectively configure the laminating machines, the laminating machines need to be arranged in a large number of places, and a plurality of laminating machines need to be purchased with a large amount of money.
Disclosure of Invention
The technical problem of the invention is mainly solved by the following technical scheme:
the large polyurethane foaming part manufacturing system is characterized by comprising a feeding platform, a discharging platform, a laminating machine steel structure arranged between the feeding platform and the discharging platform, a template loading heating system arranged on the laminating machine steel structure and a foaming machine connected with the laminating machine steel structure.
In the manufacturing system of the large polyurethane foam part, the steel structure of the laminating machine is a gantry frame structure, the top of the laminating machine is fixedly provided with the upper die lifting device, the upper die block is fixedly connected with the upper die lifting device through the upper die plate, the lower die block is fixedly arranged on the hydraulic jacking device at the bottom of the gantry frame structure, and the whole steel structure of the laminating machine can be inclined at a set angle through the hydraulic jacking device; the heating system for the carrying template is arranged on the carrying template and can heat the carrying template, and the foaming machine is arranged beside a steel structure of the laminating machine and can foam the foaming part.
As another scheme, in the manufacturing system of the large polyurethane foam part, the steel structure of the laminating machine is a gantry frame structure, the top of the laminating machine is fixedly provided with an upper die lifting device, an upper die block is fixedly connected with the upper die lifting device through a loading template, a lower die block is fixedly arranged on a lower die plate moving support at the bottom of the gantry frame structure, and the lower die plate moving support can reciprocate on a lower die plate moving guide rail; the heating system for the carrying template is arranged on the carrying template and can heat the carrying template, and the foaming machine is arranged beside a steel structure of the laminating machine and can foam the foaming part.
In foretell large polyurethane foaming spare manufacturing system, material loading platform, unloading platform are the roller bearing, carry the template system of heating and adopt water circulation heating system.
In the above large polyurethane foam part manufacturing system, the upper die lifting device and the hydraulic jacking device both adopt hydraulic systems, and each hydraulic system comprises a hydraulic station, 16 upper die lifting cylinders, one set of lifting pump set, one set of pressure maintaining pump set, and corresponding high-pressure oil pipes and valves.
In the manufacturing system of the large polyurethane foaming part, the template carrying bracket is fixed with the upper module through the template carrying bracket, and the template carrying bracket comprises a bracket and a track connected with the bracket; the template-carrying heating system consists of a medium heating device, a pump set, a pipeline and a temperature control device; the mould carrying plate is composed of a mould carrying plate and a mould frame position adjusting device, the mould carrying plate is a whole steel plate, the mould frame position adjusting device is welded on the upper plane of the mould carrying plate, the upper plane is provided with a plurality of threaded holes for fixing the upper mould lifting device, and the upper mould lifting device is fixed through different threaded holes to finely adjust the position of the mould carrying plate. The foaming machine moving system comprises a frame, a moving pulley which is arranged on the frame and can move along the Z direction and a spring balancer which is fixed on the moving pulley, wherein the frame bears the foaming machine and is fixed on the moving pulley by bolts, so that the moving pulley carries the foaming machine to freely move in the Z direction (the length direction of a laminating machine), the spring balancer is hung on two foaming gun heads to move along with the moving pulley in the Z direction, the gun heads can freely move in the direction of X, Y, anti-skid pedals meeting the requirement of a segmented filling foaming process of a foaming piece in the Z direction are mounted on two sides of a template-carrying support, and an electric control system centrally controls the whole system by an electric control cabinet.
In the manufacturing system of the large polyurethane foaming part, the upper template is arc-shaped, the lower template is crescent-shaped, the upper template forms a cuboid after moving to the lower template, and a roof steel structure for foaming is arranged between the upper template and the lower template.
In the above large polyurethane foaming piece manufacturing system, the upper template and the lower template are both flat plates, the upper template moves to the lower template to form a rectangular body, and the foaming piece for foaming is arranged between the upper template and the lower template.
At foretell large polyurethane foaming spare manufacturing system, still include a clamping mechanism, clamping mechanism is an L shape couple, laminator steel construction side be equipped with one with L shape couple complex hangers, can not remove through L shape couple with the locking of laminator steel construction.
A method for manufacturing a large polyurethane foam part by using a large polyurethane foam part manufacturing system is characterized by comprising the following steps:
And 2, during foaming, utilizing a lower die jacking device to incline the upper die and the lower die by 10 degrees.
And 3, longitudinally moving the foaming machine according to the foaming position, filling and foaming the foaming piece cavity by cavity, and cooling to form the polyurethane.
And 4, moving the template-carrying support and the upper die upwards (stripping) by using the upper die lifting device, and moving the foaming layer out of the laminating machine to a blanking table.
A method of making a large polyurethane foam part using a large polyurethane foam part making system, comprising:
And 2, during foaming, loosening the mold locking mechanism, and moving the lower mold to a workpiece hoisting position P1 by using the lower mold plate moving support and the lower mold plate moving guide rail to fix (as shown in the attached figure 2).
And 3, hoisting the roof steel structure by using a crane hoist, placing the roof steel structure on the upper arc surface of the lower die to be closely attached, transversely moving the lower template moving support to a tool foaming position P0, and locking the lower template by using a locking mechanism (shown in the attached figure 1). And the upper die lifting device is used for moving the template carrying support and the upper die downwards to enable the lower arc surface of the upper die to be closely attached to the upper arc surface of the roof steel structure, and locking the upper die and the lower die.
And 4, according to the foaming machine of the longitudinal moving member at the foaming position, filling and foaming the roof steel structure chamber by chamber, and cooling to polyurethane molding.
And 5, moving the template carrying support and the upper die upwards (stripping) by using the upper die lifting device, and moving the lower die to the workpiece hoisting position P1 again by using the lower template moving support and the lower template moving guide rail and fixing (as shown in the attached figure 2).
And 6, hoisting the foamed arc special-shaped car roof by using a crane hoist and placing the car roof in a foamed part storage area.
Therefore, the invention has the following advantages: 1. the production efficiency is improved by utilizing an automatic technology; 2. the lower die of the tool moves transversely, so that the production field is optimized, the die does not need to be replaced, the time is saved, and the production efficiency is improved; 3. has certain flexibility and can be used for flat plate foaming; 4. the foaming auxiliary time is short, and the production efficiency is high; 5. the foaming quality consistency of each section of the car roof is high, and the product quality is improved.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Fig. 2 is a schematic diagram of another system architecture of the present invention.
Figure 3 is a schematic diagram of the laminator of the present invention in an inclined position.
Figure 4 is a schematic view of the laminator of the present invention in a horizontal position.
Fig. 5 is a schematic structural diagram of an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of another embodiment of the present invention.
Fig. 7 is a schematic structural principle diagram of another embodiment of the invention during hoisting.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the figure, a foaming machine 1, an upper die lifting device 2, a template carrying plate 3, a template carrying plate bracket 4, an upper die block 5, a foaming piece 6, a lower die block 7, a lower die plate jacking device 8, a lower die plate moving guide rail 9 and a mold locking machine
The mechanism 10, the spring balancer 11, the feeding platform 12, the discharging platform 13, the tooling foundation 14, the heating device 15, the filling pipe 16 and the laminating machine 17.
Example 1:
firstly, the structure of the flat polyurethane foaming tool is introduced.
1. The flat-plate polyurethane foaming tool comprises a feeding table, a discharging table, a laminating machine steel structure, an upper module, an upper die lifting device, a lower module, a template loading heating system, a foaming machine and the like (see figure 1).
2. The feeding and discharging tables are both rolling shafts, so that large-scale flat plate conveying is facilitated. The steel structure of the laminating machine mainly adopts a gantry frame structure, and the bottom of the laminating machine is provided with a hydraulic jacking device which can enable the whole steel structure to incline for a certain angle. The upper module is installed on the steel structure through an upper die lifting device. The lower module is installed on a steel structure through a lifting device and can be jacked from bottom to top, so that the distance between the upper module and the lower module is reduced. The upper and lower module surfaces are both flat surfaces, 13 meters long and 3 meters wide. The module board heating system adopts water circulation.
3. The large flat plate foaming process comprises the following steps: placing an external wall plate on a loading platform, placing a foaming cavity spacer block (polyurethane prefabrication) on the external wall plate, laying an internal wall plate, entering a foaming layer into a laminating machine, locking an upper die and a lower die, inclining the laminating machine (shown in figure 3), filling foaming by cavity, forming polyurethane, recovering the horizontal state of the laminating machine (shown in figure 4), drawing a die, and enabling the foaming layer to exit the laminating machine to enter a unloading platform.
4. The foaming tool is used for filling and integrally foaming by sections at high pressure, the length of a section filling cavity is 1500mm times, and the number of the filling cavities is determined according to the length of a wallboard. Each refrigerated vehicle is provided with 2 side walls, each side wall is divided into two sections from the position of the middle door, and the two sections are foamed respectively; the two end wall plates are respectively foamed; the underframe floor was foamed alone. The production cycle is 7 hours per shift for one vehicle.
5. The pressing is driven by a hydraulic oil cylinder, and the hydraulic system can automatically maintain pressure and supplement pressure after the upper die and the lower die are combined.
6. The platen is heated by using water to circularly heat the working platen, the heat source adopts a mold temperature machine, and the working temperature of the platen is 60-70 ℃.
7. The upper and lower mold structures have sufficient strength and rigidity to withstand the pressure and mold clamping force generated during foaming without deformation. The peripheral mold locking of the filling cavity adopts manual locking, and the mold locking mechanism can ensure that the size of the cavity is not changed during foaming.
8. The tool can stably run under the conditions that the ambient temperature is 0-40 ℃, the relative humidity is less than or equal to 90 percent and the continuous work is carried out for 22 hours under the rated load.
Secondly, the following introduces a flat polyurethane foaming process, which comprises the following steps:
1. the side wall of the refrigerated transport vehicle is of a large-scale flat plate structure, and is 19874mm long and 3000mm wide. The outer plate of the side wall is a steel plate with the thickness of 2.5mm, the inner plate is an aluminum alloy plate with the thickness of 1mm, and the side wall is foamed in two sections.
2. And placing the side wall outer plate on the feeding table, putting up a foaming cavity on the side wall plate with the outer side facing downwards, placing the side wall inner plate on the foaming cavity, and feeding the side wall inner plate into a laminating machine.
3. When foaming, the upper and lower dies are inclined by 10 degrees by using the lower die jacking device of the piece 8.
4. And (3) according to a foaming machine of the longitudinal moving member 1 at the foaming position, filling and foaming the foaming member 6 cavity by cavity, and cooling to polyurethane molding.
5. The upper die of the piece 4 carrying the template bracket and the upper die of the piece 5 are moved upwards (stripping) by using the upper die lifting device of the piece 2, and the foaming layer is moved out of the laminating machine to a blanking table.
6. And hoisting the side wall subjected to foaming by using a crane hoist and placing the side wall in a foaming piece storage area.
7. The same method is used for foaming the floor and the end wall of the underframe.
Example 2
Firstly, the structure of the special-shaped arc polyurethane foaming tool is introduced.
1. The special-shaped arc polyurethane foaming tool is composed of a foaming machine, a main machine, a hydraulic driving system, an upper die, a lower die, an upper die lifting device, a template carrying plate, a template carrying support, a lower template moving guide rail, a template carrying heating system, a die locking mechanism, a foaming machine moving system, an electric control system and the like (see attached figure 6).
2. The main frame consists of a frame, an upper die lifting device, a base and a track device. The hydraulic driving system consists of a hydraulic station, 16 upper die lifting oil cylinders, a lifting pump set, a pressure maintaining pump set, corresponding high-pressure oil pipes and corresponding valves. The length of the template carrying plate is 21m, the width of the template carrying plate is 3m, and the template carrying plate is composed of a template carrying plate and a template frame position adjusting device. The template carrying bracket consists of a bracket and a track and is arranged on the upper side and the lower side of the host machine. The heating system for the template consists of a medium heating device, a pump set, a pipeline and a corresponding temperature control device, wherein the medium heating device, the pump set, the pipeline and the corresponding temperature control device are respectively arranged in a set. Foaming machine moving system, frame, X, Y, direction moving pulley and Z direction spring balancer. The antiskid footplate is installed in the both sides of carrying the template support. The electric control system is controlled by the electric control cabinet in a centralized way and is provided with corresponding buttons, relays, temperature controllers and the like.
3. The large-scale circular arc foaming process comprises the following steps: transversely pulling out the lower die, putting an outer plate steel structure on the roof into the lower die, placing a foaming cavity spacer block (polyurethane prefabrication), laying an inner top plate, transversely pushing the lower die, locking the upper die and the lower die, filling and foaming the polyurethane cavity by cavity, forming the polyurethane, drawing out the die, transversely pulling out the lower die, and lifting the foamed arc-shaped special plate. During foaming, the steel structure of the outer plate of the car roof is reversely arranged on the lower die of the press, namely the outer side surface of the top plate is completely contacted with the supporting surface of the lower die of the press.
4. The foaming tool is used for filling and integrally foaming by sections at high pressure, the length of the section filling cavity is 1500mm times, and the number of the filling cavities is about 7. Each refrigerated vehicle has 1 roof. The production cycle is 7 hours per shift for one vehicle.
5. The pressing is driven by a hydraulic oil cylinder, and the hydraulic system can automatically maintain pressure and supplement pressure after the upper die and the lower die are combined. The transverse movement driving of the lower die of the tool adopts motor speed reduction and frequency conversion driving, and the stable motion and no impact are ensured.
6. The platen heating uses water to circularly heat the working platen, the heat source adopts a mold temperature machine, and the working temperature of the platen is 600-700 ℃.
7. The upper and lower mold structures have sufficient strength and rigidity to withstand the pressure and mold clamping force generated during foaming without deformation. The peripheral mold locking of the filling cavity adopts manual locking, and the mold locking mechanism can ensure that the size of the cavity is not changed during foaming.
8. This frock has certain flexibility, and the mould has adopted the modularized design with the complete machine: the mould body can be replaced according to the structural size change of the product, or after the arc-shaped mould is cancelled in the whole machine, the basic functions of the flat plate laminating machine capable of foaming in a segmented mode can be achieved through local perfection.
9. The electric elements are made of international famous brands, such as Siemens, ohm dragon, Mitsubishi, Schneider and other series products. And a central control system is arranged for controlling the automatic action of the whole tool, and all the electric control units and components are arranged in the control box and meet the related requirements of safe configuration of a cyclopentane raw material system.
10. The tool can stably run under the conditions that the ambient temperature is 0-40 ℃, the relative humidity is less than or equal to 90 percent and the continuous work is carried out for 22 hours under the rated load.
Secondly, the following introduces a special-shaped arc polyurethane foaming process, which comprises the following steps:
1. the refrigerated transport vehicle roof is of a large arc special-shaped structure, and is 19874mm long, 3034mm wide and 773mm high (as shown in figures 6 and 7). The outer plate of the car roof is a steel structure body formed by assembling and welding a steel plate with the thickness of 2.5mm with a curved beam and a side beam of the car roof, and the inner plate is formed by riveting an aluminum alloy plate with the thickness of 1 mm. The outer plate and the inner plate are prefabricated into a whole in the last process.
2. As shown in figure 1, 2 is an initial position of the tool, a clamping mechanism 10 is used for fixing a lower die 7 to prevent the lower die from moving randomly.
3. During foaming, the clamping mechanism of the piece 10 is released, and the lower die of the piece 7 is moved to the workpiece hoisting position P1 to be fixed by using the lower die plate moving bracket of the piece 8 and the lower die plate moving guide rail of the piece 9 (as shown in fig. 6).
4. The steel structure at the top of the part 6 is lifted by using a crane hoist and is placed on the upper arc surface of the lower die of the part 7 to be closely attached, the lower template of the transverse moving part 8 moves to the bracket to the tool foaming position P0, and the lower template is locked by using a part 10 locking mechanism (as shown in figure 6). The part 4 carrying the template bracket and the part 5 upper die are moved downwards by the part 2 upper die lifting device, so that the lower arc surface of the part 5 upper die is closely attached to the upper arc surface of the part 6 roof steel structure, and the part 5 upper die and the part 6 lower die are locked.
5. And (3) according to a foaming machine of the longitudinal moving member 1 at the foaming position, filling and foaming the steel structure at the roof of the member 6 chamber by chamber, and cooling to polyurethane molding.
6. The die plate support on the die 4 and the upper die on the die 5 are moved upward (stripping) by the die lifting device on the die 2, and the lower die of the die 7 is moved to the workpiece hoisting position P1 again by the die plate moving support on the die 8 and the die plate moving guide on the die 9 and fixed (as shown in fig. 6).
7. And hoisting the foamed arc special-shaped car roof by using a crane hoist and placing the car roof in a foamed part storage area.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the foaming machine 1, the upper die lifting device 2, the die carrying plate 3, the die carrying plate bracket 4, the upper die block 5, the foaming piece 6, the lower die block 7, the lower die plate jacking device 8, the lower die plate moving guide rail 9, the die locking mechanism 10, the spring balancer 11, the feeding table 12, the discharging table 13, the tooling foundation 14, the heating device 15, the pouring pipe 16 and the laminating machine 17 are used more frequently. Etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (3)
1. A large polyurethane foaming part manufacturing system is characterized by comprising a feeding platform, a discharging platform, a laminating machine steel structure arranged between the feeding platform and the discharging platform, a template-carrying heating system arranged on the laminating machine steel structure and a foaming machine connected with the laminating machine steel structure; the template carrying support comprises a support and a track connected with the support; the template-carrying heating system consists of a medium heating device, a pump set, a pipeline and a temperature control device; the die carrying plate is composed of an integral steel plate and a die frame position adjusting device, the die frame position adjusting device is welded on the upper plane of the integral steel plate, the upper plane is provided with a plurality of threaded holes for fixing an upper die lifting device, and the upper die lifting device can finely adjust the position of the die carrying plate by fixing through different threaded holes; the foaming machine moving system comprises a frame, a moving pulley which is arranged on the frame and can move along the Z direction, and a spring balancer which is fixed on the moving pulley, wherein the frame bears the foaming machine and is fixed on the moving pulley by bolts, so that the moving pulley carries the foaming machine to freely move in the Z direction, the spring balancer is used for hanging two foaming gun heads to move along with the moving pulley in the Z direction, the gun heads can freely move in the direction of X, Y, and the requirements of the segmented filling foaming process of a foaming piece in the Z direction are met; the anti-skid pedals are arranged on two sides of the template-carrying bracket; the electric control system is used for controlling the whole system by the electric control cabinet in a centralized way; the feeding table and the discharging table are both rolling shafts, and a template-carrying heating system adopts a water circulation heating system; the mould locking mechanism is an L-shaped hook, a hanging lug matched with the L-shaped hook is arranged on the side surface of the steel structure of the laminating machine, and the steel structure of the laminating machine can be locked by the L-shaped hook and cannot move;
the steel structure of the laminating machine is a gantry frame structure, an upper die lifting device is fixed at the top of the steel structure of the laminating machine, an upper die block is fixedly connected with the upper die lifting device through a loading template, a lower die block is fixed on a hydraulic jacking device at the bottom of the gantry frame structure and can enable the steel structure of the whole laminating machine to incline at a set angle through the hydraulic jacking device, a loading template heating system is arranged on the loading template and can heat the loading template, and a foaming machine is arranged beside the steel structure of the laminating machine and can foam a foaming piece; the upper die plate and the lower die plate are both flat plates, the upper die plate moves to the lower die plate to form a rectangular body, a foaming piece for foaming is arranged between the upper die plate and the lower die plate, and the upper die lifting device and the hydraulic jacking device both adopt hydraulic systems and comprise a hydraulic station, 16 upper die lifting oil cylinders, a lifting pump set, a pressure maintaining pump set, corresponding high-pressure oil pipes and corresponding valves;
or the steel structure of the laminating machine is a gantry frame structure, the top of the laminating machine is fixedly provided with an upper die lifting device, an upper die block is fixedly connected with the upper die lifting device through a loading template, a lower die block is fixedly arranged on a lower die plate moving support at the bottom of the gantry frame structure, and the lower die plate moving support can reciprocate on a lower die plate moving guide rail; the mould loading plate heating system is arranged on a mould loading plate and can heat the mould loading plate, the foaming machine is arranged beside a steel structure of the laminating machine and can foam a foaming piece, the upper mould plate is arc-shaped, the lower mould plate is crescent-shaped, the upper mould plate moves to the lower mould plate and then forms a cuboid, a roof steel structure for foaming is arranged between the upper mould plate and the lower mould plate, the upper mould lifting device adopts a hydraulic system and comprises a hydraulic station, 16 upper mould lifting cylinders, one lifting pump set, one pressure maintaining pump set and corresponding high-pressure oil pipes and valve pieces.
2. A method of making a large polyurethane foam using the large polyurethane foam making system of claim 1, comprising:
step 1, placing a side wall outer plate on a feeding table, enabling the outer side of the side wall outer plate to face downwards, building a foaming cavity on the side wall plate, placing a side wall inner plate on the foaming cavity, and feeding the side wall inner plate into a laminating machine;
step 2, during foaming, inclining the upper die and the lower die by 10 degrees by using a hydraulic jacking device;
step 3, longitudinally moving a foaming machine according to a foaming position, filling and foaming the foaming piece cavity by cavity, and cooling until polyurethane is molded;
and 4, moving the template-carrying support and the upper die upwards by using the upper die lifting device, and moving the foaming layer out of the laminating machine to a blanking table.
3. A method of making a large polyurethane foam using the large polyurethane foam making system of claim 1, comprising:
step 1, fixing a lower die by a die locking mechanism to prevent the lower die from moving randomly;
step 2, during foaming, loosening the mold locking mechanism, and moving the lower mold to a workpiece hoisting position P1 for fixing by using the lower mold plate moving support and the lower mold plate moving guide rail;
step 3, hoisting a roof steel structure by using a crane hoist, placing the roof steel structure on the upper arc surface of the lower die to be closely attached, transversely moving the lower template moving support to a tool foaming position P0, and locking the lower template by using a locking mechanism; the template-carrying bracket and the upper die are moved downwards by using an upper die lifting device, so that the lower arc surface of the upper die is closely attached to the upper arc surface of the roof steel structure, and the upper die and the lower die are locked;
step 4, longitudinally moving a foaming machine according to a foaming position, filling and foaming the roof steel structure chamber by chamber, and cooling to polyurethane molding;
step 5, the template carrying support and the upper die are moved upwards by the upper die lifting device, and the lower die is moved to a workpiece hoisting position P1 again by the lower template moving support and the lower template moving guide rail and fixed;
and 6, hoisting the foamed arc special-shaped car roof by using a crane hoist and placing the car roof in a foamed part storage area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121579.2A CN106626205B (en) | 2016-12-08 | 2016-12-08 | Large polyurethane foaming part manufacturing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611121579.2A CN106626205B (en) | 2016-12-08 | 2016-12-08 | Large polyurethane foaming part manufacturing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106626205A CN106626205A (en) | 2017-05-10 |
| CN106626205B true CN106626205B (en) | 2020-09-22 |
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| CN108724582B (en) * | 2018-06-20 | 2023-09-22 | 俞鑫怡 | Production system and production process of integral bathroom wallboard |
| CN109049477B (en) * | 2018-09-17 | 2024-03-19 | 张家港力勤机械有限公司 | Polyurethane foaming line |
| CN109049487A (en) * | 2018-09-17 | 2018-12-21 | 张家港力勤机械有限公司 | The raw material premix material device of high-pressure polyurethane foaming equipment |
| CN110466103B (en) * | 2019-08-08 | 2021-07-27 | 中车长江车辆有限公司 | Flexible foaming device and method for large-scale part |
| CN110900935A (en) * | 2019-11-26 | 2020-03-24 | 中车长江车辆有限公司 | Integral foaming system and method |
| CN112549417B (en) * | 2020-10-30 | 2023-06-20 | 中车长江车辆有限公司 | Integral foaming system and method for long and large special-shaped underframe |
| CN112721000B (en) * | 2020-11-25 | 2023-06-20 | 中车长江车辆有限公司 | Mould, roof heat insulator manufacturing method and roof heat insulator |
| CN114425832A (en) * | 2021-12-29 | 2022-05-03 | 中车长江车辆有限公司 | Refrigerator car integral heat insulation layer manufacturing method, foaming device and refrigerator car |
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| KR100879395B1 (en) * | 2007-08-01 | 2009-01-20 | 한국생산기술연구원 | Forming apparatus for heat sink by foaming |
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| CN201456519U (en) * | 2009-07-28 | 2010-05-12 | 湘潭方棱聚氨酯机器有限公司 | Portal framework jacking-type laminating machine |
| CN202241761U (en) * | 2011-08-04 | 2012-05-30 | 武汉中轻机械有限责任公司 | one-step foaming moulding device for polyurethane plates |
| CN202727225U (en) * | 2012-07-06 | 2013-02-13 | 绍兴县华创聚氨酯有限公司 | Efficient polyurethane sandwich panel production equipment |
| CN204019843U (en) * | 2014-07-21 | 2014-12-17 | 上海古汉汽车饰件模具有限公司 | The fascia electronic mould bases that foams |
| CN205750503U (en) * | 2016-05-24 | 2016-11-30 | 北京启顺京腾科技有限责任公司 | A kind of production equipment of polyurethane weatherstrip |
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| KR100879395B1 (en) * | 2007-08-01 | 2009-01-20 | 한국생산기술연구원 | Forming apparatus for heat sink by foaming |
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