CN201405429Y - Dual-steel band press - Google Patents

Dual-steel band press Download PDF

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Publication number
CN201405429Y
CN201405429Y CN2009200937432U CN200920093743U CN201405429Y CN 201405429 Y CN201405429 Y CN 201405429Y CN 2009200937432 U CN2009200937432 U CN 2009200937432U CN 200920093743 U CN200920093743 U CN 200920093743U CN 201405429 Y CN201405429 Y CN 201405429Y
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China
Prior art keywords
thickness
plate
length
district
hydraulic cylinder
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Expired - Lifetime
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CN2009200937432U
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Inventor
南明寿
管玉昌
王勇
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DUNHUA YALIAN MACHINERY MANUFACTURING Co Ltd
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DUNHUA YALIAN MACHINERY MANUFACTURING Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The utility model discloses a dual-steel band press consisting of a framework mechanism, a pressurizing and heating device, a driving device, a chain roller bar transmission device and an inlet tongueplate. A mobile framework structure is adopted to replace a fixed framework structure, so that relative sliding is not generated between a hydraulic cylinder plunger and a bottom plate in working state, thereby avoiding deformation of the framework plate and seal damage of the hydraulic cylinder as a result of large sliding friction resistance in past. The inlet tongue plate has a region A for exhausting air in a slab, a region B for pressurizing and compressing slabs in a transition way and a region C being a fixed high-pressure region for transmitting pressure in the hydraulic cylinder to the slab through a roller bar and a steel band. The stepped structure form increases the length of the inlet tongue plate, avoids complex stressed state at the lower surface of the inlet tongue plate in the existing structure, reduces the curved stress and pressure stress, prolongs the service life and solves the problems of short service life and difficult replacement of a hot press plate in the high-pressure region adjacent to the tongue plate.

Description

Double-steel belt pressing machine
Technical field:
The utility model provides a kind of double-steel belt pressing machine, is used to produce MDF and particieboard, belongs to the wood processing machinery technical field.
Background technology:
At present, the double-steel belt pressing machine that is used to produce MDF and particieboard mainly is by fixed frame mechanism, pressurization, heater, drive unit, chain roller rod transmission device, formations such as electronically controlled hydraulic system and entrance tongue board.Particular content is as follows:
Fixed frame mechanism: vertically arranged along press according to different spacings by several frame plates, be separately fixed on back timber and the bottom girder by bolt, back timber is connected with the tail plate with machine head plate respectively by bolt with bottom girder.
Pressurization, heater: constitute by hydraulic cylinder, thermal insulation board, last lower hot pressing board.Wherein the cylinder body of hydraulic cylinder directly is connected by bolt with frame plate, and the plunger of hydraulic cylinder can slide on upper hot pressboard during ordinary production.
Drive system apparatus: mainly by driven roller up and down, up and down ring steel belt and up and down reductor form.Upper and lower driven roller and upper and lower driving roller respectively by bearing fixing about machine head plate and tail plate; That last steel band is looped around is driven, go up on the driving roller and driven by last reductor, and that following steel band is looped around down is driven, driven by reductor down on the driven roller and turn round.
Chain roller rod transmission device is to pass through chain by reductor, and bearing pin drives the roller rod, and the club group of two annulars realizes the function of heat transfer, pressure transmission about forming.
Electronically controlled hydraulic system: the passing ratio valve is adjusted the thickness of plank.
Entrance tongue board is the go into mouth mechanism of device at double-steel belt pressing machine, by the tongue board strain that bends, make press go into interruption-forming certain open shelves, loose slab is imported press, the pressure of hydraulic cylinder acts on the entrance tongue board, exerts pressure to slab by entrance tongue board and roller bar and steel band.
The technological deficiency that exists when this press is used to produce is: the one, owing to the very difficult glade plane space that guarantees between backing plate and the cylinder plunger of reasons such as manufacturing, installation, when the heating platen expanded by heating, cylinder plunger slides on backing plate and can produce very big frictional resistance, this power will act on the frame plate, finally cause the frame plate distortion; The 2nd, the glade plane space of cylinder plunger and backing plate can't seal fully, after dust enters the gap, tilts when causing the hydraulic cylinder pressurization, impels sealing part abrasion to accelerate, and finally causes the hydraulic cylinder sealing place to be leaked, and brings adverse effect to production; The 3rd, because existing entrance tongue plate thickness is bigger, so can produce very big tension at the lower surface of tongue board.According to the technological requirement that sheet material is produced, high pressure needs the surface that puts on slab as far as possible early, so just need apply high pressure simultaneously at the high bending deformation area of entrance tongue board.At this moment,, should bear the very big tension of bringing because of crooked at the lower surface of entrance tongue board, simultaneously again because of high pressure be subjected to that the roller bar passes over very big circulation bearing stress, cause this region surface that fatigue rupture easily takes place.In addition, the tongue board of prior art does not cover the stressed district of high pressure of press, and fatigue damage can take place in the heating platen of higher-pressure region after bearing the high pressure effect for a long time, the higher-pressure region heating platen of existing structure is made as integrative-structure with low-pressure area, need be during replacing large tracts of land heating platen integral replacing, work difficulty is big, production cost expense height.
The utility model content:
The purpose of this utility model is to provide a kind of double-steel belt pressing machine that is used to produce MDF and particieboard, mechanism changes movable frame structure into the stationary frame plate, has solved shortcomings such as frame plate distortion that sliding-frictional resistance that existing double-steel belt pressing machine heating platen produces between cylinder plunger and the backing plate when expanded by heating causes and hydraulic cylinder sealing element wearing and tearing.
Another purpose of the present utility model provides a kind of nonlinear gradient entrance tongue board, adopted stepped version and the length of the entrance tongue board that extended, main effect is to have avoided the complicated applied force state of entrance tongue board lower surface in the existing structure, reduce suffered bending stress and the compression of tongue board, improve its service life, it is low and change difficult problem to solve adjacent with tongue board higher-pressure region heating platen service life simultaneously.
Technical solution of the present utility model is as follows: by frame mechanism, and pressurization, heater, drive unit, chain roller rod transmission device, electronically controlled hydraulic system and entrance tongue board constitute the utility model;
Described frame mechanism respectively is provided with a pilot hole around its monolithic frame plate, inlays lubricating arrangement in the pilot hole and an axis of guide is housed, and the axis of guide is separately fixed on back timber and the bottom girder by pedestal.Monolithic frame plate mid portion has an opening, and upper hot pressboard, lower hot pressing board, hydraulic cylinder just are mounted in the opening of monolithic frame plate.Hydraulic cylinder body is fixedlyed connected with the top of monolithic frame plate opening by bolt, cylinder plunger is by bolt and backing plate, thermal insulation board, upper hot pressboard are fixedly connected, and hot plate is fixedlyed connected with the bottom of monolithic frame plate opening by bolt down, in order to prevent down that hot plate produces relative slip with the lower opening portion of frame plate, will descend hot plate and framework connecting plate to be fixed together with alignment pin.Two monolithic frame plates and framework connecting plate connect and compose a frame unit with bolt.Constituted whole frame system vertically arranging according to certain spacing of press by several frame units.
When the heating platen expanded by heating, heating platen will drive frame unit and move at axis of guide upper edge press longitudinal direction, avoided the influence of external force to frame plate, also avoided the relative slip that produces between cylinder plunger and the backing plate, also guaranteed simultaneously the sealing fully between cylinder plunger and the backing plate, tilted to the damage of seal when having avoided the hydraulic cylinder pressurization.
Described entrance tongue board is divided into A, B, three stepped structures of C with the tongue board body, wherein,
A section length: L A=(S A-S B)/sin α; Bending height S AFor=8*T; Thickness H A=0.05L A
B section length: L B=(S B-S C)/sin β; Bending height S B=S A* 15%; Thickness H B=0.024L B
C section length: L C=0.628 (L B+ L A); Bending height S C=T*1.2/2; H C=0.034L C
α is that the maximum in A district is lifted angle;
β is that the maximum in B district is lifted angle;
T is a sheet metal thickness.
Described entrance tongue board preferred size is:
The length L in A district ABe 818-1222mm, thickness H ABe 45-55mm;
The length 1910-3070mm in B district, thickness 50-70mm;
C zone length 1713-2695mm, thickness 60-100mm;
α＝8°~12°；β＝0.28°~0.45°。
Described entrance tongue board optimum size is:
The length 1000mm in A district, thickness 50mm;
The length 2500mm in B district, thickness 60mm;
The length 2200mm in C district, thickness 75mm; α=8 °; β=0.28 °.
As Fig. 6, shown in Figure 7, the inlet region of double-steel belt pressing machine can be divided into A, B, three districts of C, the A district is an exhaust gas region, effect is that the air in the slab 1 is discharged gradually, scope is Zi before the press cylinder that enters the mouth, according to the thickness of slab, adjust the deflection in A district by the size of adjusting power F, slab is steadily imported press; The B district is the transition pressor areas, can compress slab to the slab pressurization according to the compression speed of technological requirement; The C district is fixing higher-pressure region, covers whole higher-pressure regions of press, and mainly acting on is that the pressure of hydraulic cylinder is passed to slab by roller bar and steel band.
Only to have an A district different with the B district with existing entrance tongue board, and the C district is peculiar zone of the present utility model.The internal production of entrance tongue board the heating oilhole of certain diameter and spacing be the entrance tongue board heating as the passage of heating carrier.
Entrance tongue board adopts stepped structure fabrication, is made into different length and thickness according to A, B, three zones of C.
According to the technological requirement of Wood-based Panel Production, the maximum in entrance tongue board A district is lifted angle [alpha]=8 °-12 °.If angle [alpha] is excessive, when entering press, slab, reduces the surface quality of sheet material because exhaust velocity is too fast, and the gas of discharge can damage slab, if angle [alpha] is too little, can cause pressing time too late.The concrete numerical value that maximum is lifted angle [alpha] is by the raw material decision of Wood-based Panel Production, and when using the coniferous forest raw material, exhaust performance is better, at this moment can select bigger exhaust angle [alpha]=12 °; If use the broad-leaf forest raw material, the exhaust performance of the fiber that this raw material are produced is relatively poor, at this moment will select to use less exhaust angle [alpha]=8 °.Most of areas are that coniferous forest and broad-leaf forest mix use, and the concrete numerical value of angle will use local raw-material proportioning actual conditions determine according to equipment.Equally according to the technological requirement of Wood-based Panel Production, it is β=0.28 °-0.45 ° that the maximum of entrance tongue board 7B district pressing plate is lifted angle.
According to the technological requirement of Wood-based Panel Production, the needs of fiber in the A district are compressed to 15% of slab thickness, need be compressed to 1.2 times of finished product sheet metal thickness in the B district.
According to the fertile maximum ga(u)ge of this kind double-steel belt pressing machine is that T=25mm is an example, entrance tongue board bending height: S A=8*T=200mm, S B=S A* 15%=30mm, S C=T*1.2/2=15mm.By the requirement of the technological parameter of above press, calculate entrance tongue board A section length: L A=(S A-S B)/sin α=(200-30)/sin (8 °-12 °), L ALength range be: 818-1222mm.
L in like manner B=(S B-S C)/sin β; β=(0.28 °-0.45 °) calculates L BLength range be: 1910-3070mm.
L CBe the length of higher-pressure region, according to the ratio difference of Wood-based Panel Production raw material ratio, L CScope be 1713-2695mm.
The conduction oil passage owing to laterally arranged in the entrance tongue board, stressed back deformation state complexity, the FEM model of setting up entrance tongue board according to the above length dimension data and the hydraulic jack pressurization situation of entrance tongue board, pass through finite element analysis computation, try to achieve each regional thickness range of entrance tongue board, H A=45-55mm, H B=50-70mm, H C=60-100mm.Adopt the round-corner transition of certain distance or the mode transition of employing gradient thickness between the zone of different-thickness.
As shown in Figure 7, can be adjusted into different angle work to entrance tongue board according to the difference of slab thickness during work.When entrance tongue board is done the distortion adjustment, because a-quadrant thickness is the thinnest, under the situation of same distortion, the suffered bending stress of the utility model entrance tongue board lower surface has only the 30%-40% of existing entrance tongue board, can be improving 2 ~ 4 times the service life of tongue board.
The B area thickness is big slightly.Because the A district is flexible higher, can produce enough distortion and allow slab import press, so during work B only need to finish less distortion in district just passable, the while can be born bigger contact stress.In the present known structure, the arrangement pitch of hydraulic cylinder is all greater than 500mm, in structure of the present utility model, reduced the spacing of B zone hydraulic cylinder, its spacing changes 400mm-450mm into, the result of finite element analysis shows that under the identical situation of average pressure, the suffered maximum bearing stress of tongue board has had obvious reduction than existing structure after the adjustment spacing.
The thickness maximum in C zone because the distortion in a-quadrant and B zone can have been satisfied the needs of inlet angle fully, so the C zone does not need flexural deformation substantially, has only the bearing stress that contacts with the roller bar when work.Because the C zone is the thickest, the distortion that produces behind the pressurized is less, and for avoiding waste of material, big slightly in C zone hydraulic cylinder gap ratio B district, maximum bearing stress still is controlled within the reasonable range.
In present known structure, as shown in figure 10, the entrance tongue board of existing structure has only the scope in A district and B district, length is about about 3.5 meters, first heating platen length after the inlet is about about 8 meters, first heating platen is higher-pressure regions for nearly 2.2 meters in the position that joins with entrance tongue board, and remainder is a low-pressure area.As everyone knows, metal is under the effect of bearing the circulation high pressure stress for a long time, and its surface will inevitably produce fatigue rupture.Entrance tongue board in the existing structure is because bearing the bigger bending stress effect and the effect of contact stress simultaneously damages easily, and first heating platen after the inlet also damages easily because bear very high bearing stress simultaneously.Because the length of heating platen is than length and in the inside of press, difficulty and the cost changed are all very high.
As shown in Figure 6, the utility model is the length dimension of entrance tongue board about 5.7 meters by present known about 3.5 meters lengthenings, covered the higher-pressure region of double-steel belt pressing machine, the region limits of stressed maximum within tongue board, after fatigue damage appears in the metal surface that works long hours, only need to change entrance tongue board and just can.Changed the situation that needs to change entrance tongue board and higher-pressure region heating platen in the existing known structure, reduced cost and reduced the difficulty of changing simultaneously.
Good effect of the present utility model is: the one, and adopt the travelling frame structure to replace stationary frame structure to make cylinder plunger not produce relative slip down in working order with backing plate, avoided causing greatly because of sliding-frictional resistance phenomenons such as frame plate distortion and hydraulic cylinder sealing rapid wear in the past.The 2nd, by changing the physical dimension of entrance tongue board, make the stressed distribution of entrance tongue board more reasonable, the service life of having improved entrance tongue board greatly.
Description of drawings
Fig. 1 is the double-steel belt pressing machine structure principle chart;
Fig. 2 is the utility model frame unit structure principle chart;
Fig. 3 is the utility model monolithic frame plate structure chart;
Fig. 4 is the B place enlarged drawing of Fig. 2;
Fig. 5 is the A place enlarged drawing of Fig. 2;
Fig. 6 is position and the Action Specification schematic diagram of the utility model entrance tongue board in double-steel belt pressing machine;
Fig. 7 is the utility model entrance tongue board working state schematic representation;
Fig. 8 is the utility model embodiment 1;
Fig. 9 is the utility model embodiment 2;
Figure 10 is the schematic diagram of existing entrance tongue board.
1. slab; 2 frame plates; 3. hydraulic cylinder; 4. upper hot pressboard; 5. back timber; 6. bottom girder; 7. entrance tongue board; 8. the axis of guide; 9. lubricating arrangement; 10. framework connecting plate; 11. fixing tension arm; 12. frame plate pilot hole; 13. backing plate; 14. thermal insulation board; 15. alignment pin; 16. following hot plate; 17. heat conduction oilhole; 18. roller bar; 19. steel band.
The specific embodiment:
Embodiment 1
As shown in Figure 1: the utility model is by frame mechanism, pressurization, heater, drive unit, chain roller rod transmission device, electronically controlled hydraulic system and tongue board constitute, with reference to Fig. 3, in frame mechanism, respectively be provided with a pilot hole 12 around the monolithic frame plate 2, inlay lubricating arrangement 9 in the pilot hole 12 and an axis of guide 8 is housed, the axis of guide 8 is separately fixed on back timber 5 and the bottom girder 6 by pedestal.Monolithic frame plate 2 mid portions have an opening, and upper hot pressboard 4, lower hot pressing board 16, hydraulic cylinder 3 just is mounted in the opening of monolithic frame plate 2.As Fig. 2, Fig. 4, shown in Figure 5: hydraulic cylinder 3 cylinder bodies are fixedlyed connected with the top of monolithic frame plate 2 openings by bolt, hydraulic cylinder 3 plungers are by bolt and backing plate 13, thermal insulation board 14, upper hot pressboard 4 are fixedly connected, and hot plate 16 is fixedlyed connected with the bottom of monolithic frame plate 2 openings by bolt down, produces relative slip in order to prevent down hot plate 16 with the lower opening portion of frame plate 2, will descend hot plate 16 and framework connecting plate 10 to be fixed together with alignment pin 15.Two monolithic frame plates 2 connect and compose a frame unit with framework connecting plate 10 usefulness bolts.Constituted whole frame system vertically arranging according to certain spacing of press by several frame units.When heating platen 4, during 16 expanded by heating, heating platen 4,16 will drive frame unit moves at the axis of guide 8 upper edge press longitudinal directions, avoided the influence of external force to frame plate, also avoided the relative slip that produces between hydraulic cylinder 3 plungers and the backing plate 13, also guaranteed the sealing fully between cylinder plunger 3 and the backing plate 13 simultaneously, inclination is to the damage of seal when having avoided hydraulic cylinder 3 pressurizations.
As shown in Figure 8, described entrance tongue board 7, adopt round-corner transition between the zones of different:
The a-quadrant length L AScope: 800-1200mm, the preferred L of this example A=1000mm, thickness H AScope: 45-55mm, the preferred H of this example A=50mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.
B zone length L BScope: 2000-3000mm, the preferred L of this example B=2500mm, thickness H BScope: 50-70mm, the preferred H of this example B=60mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.Hydraulic cylinder arrangement pitch 400-450mm, the preferred 420mm of this example.
C zone length L CScope: 2000-4000mm, the preferred L of this example C=2200mm, thickness H CScope: 60-100mm, the preferred H of this example C=75mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.
Round-corner transition zone length L RScope: 50-200mm, the preferred L of this example R=100mm.
Round-corner transition zone radius R scope: 400-1000mm, the preferred R=500mm of this example.
Embodiment 2:
Entrance tongue board 7 in embodiment 1 also can be as shown in Figure 9, adopts the mode transition of gradient thickness between the zone of different-thickness:
The a-quadrant length L AScope: 800-1200mm, the preferred L of this example A=1000mm, thickness H AScope: 45-55mm, the preferred H of this example A=50mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.
B zone length L BScope: 2000-3000mm, the preferred L of this example B=2500mm, thickness H BScope: 50-70mm, the preferred H of this example B=60mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.Hydraulic cylinder arrangement pitch 400-450mm, the preferred 420mm of this example.
C zone length L CScope: 2000-4000mm, the preferred L of this example C=2200mm, thickness H CScope: 60-100mm, the preferred H of this example C=75mm.Heating carrier channel pitch 50-80mm, the preferred 70mm of this example, diameter 25-30mm, the preferred 28mm of this example.

Claims (3)

1, a kind of double-steel belt pressing machine, by frame mechanism, pressurization, heater, drive unit, chain roller rod transmission device, electronically controlled hydraulic system and entrance tongue board constitute, and it is characterized in that:
In the described frame mechanism, respectively be provided with a pilot hole (12) around the monolithic frame plate (2), inlay lubricating arrangement (9) in the pilot hole (12) and an axis of guide (8) is housed, the axis of guide (8) is separately fixed on back timber (5) and the bottom girder (6) by pedestal; Monolithic frame plate (2) mid portion has an opening, and upper hot pressboard (4), lower hot pressing board (16), hydraulic cylinder (3) just is mounted in the opening of monolithic frame plate (2); Hydraulic cylinder (3) cylinder body is fixedlyed connected with the top of monolithic frame plate (2) opening by bolt, hydraulic cylinder (3) plunger is by bolt and backing plate (13), thermal insulation board (14), upper hot pressboard (4) are fixedly connected, and hot plate (16) is fixedlyed connected with the bottom of monolithic frame plate (2) opening by bolt down, and alignment pin (15) will descend hot plate (16) and framework connecting plate (10) to be fixed together; Two monolithic frame plates (2) connect and compose a frame unit with framework connecting plate (10) with bolt; Constituted whole frame system vertically arranging according to certain spacing of press by several frame units;
Described entrance tongue board body is divided into A, B, three stepped structures of C, wherein,
A section length: L A=(S A-S B)/sin α; Bending height S AFor=8*T; Thickness H A=0.05L A
B section length: L B=(S B-S C)/sin β; Bending height S B=S A* 15%; Thickness H B=0.024L B
C section length: L C=0.628 (L B+ L A); Bending height S C=T*1.2/2; H C=0.034L C
α is that the maximum in A district is lifted angle; β is that the maximum in B district is lifted angle;
T is a sheet metal thickness.
2, the described double-steel belt pressing machine of claim 1 is characterized in that: described entrance tongue board,
The length L in A district ABe 818-1222mm, thickness H ABe 45-55mm;
The length 1910-3070mm in B district, thickness 50-70mm;
C zone length 1713-2695mm, thickness 60-100mm;
α＝8~12°；β＝0.28~0.45°；T＝25mm。
3, the described double-steel belt pressing machine of claim 1 is characterized in that: described entrance tongue board,
The length 1000mm in A district, thickness 50mm;
The length 2500mm in B district, thickness 60mm;
The length 2200mm in C district, thickness 75mm.
CN2009200937432U 2009-06-03 2009-06-03 Dual-steel band press Expired - Lifetime CN201405429Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633194B (en) * 2009-06-03 2011-04-06 敦化市亚联机械制造有限公司 Double-steel belt pressing machine used for producing medium density fiber boards and particle boards
CN102285189A (en) * 2011-06-15 2011-12-21 200333上海大唐盛隆制冷科技有限公司 Steel-belt type polyurethane continuous laminating machine
CN102555260A (en) * 2012-01-18 2012-07-11 敦化市亚联机械制造有限公司 Double-steel tape continuous press with constant spacing and constant pressure control for producing composite material
DE202015102400U1 (en) * 2015-05-11 2016-07-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Continuously working press

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633194B (en) * 2009-06-03 2011-04-06 敦化市亚联机械制造有限公司 Double-steel belt pressing machine used for producing medium density fiber boards and particle boards
CN102285189A (en) * 2011-06-15 2011-12-21 200333上海大唐盛隆制冷科技有限公司 Steel-belt type polyurethane continuous laminating machine
CN102285189B (en) * 2011-06-15 2014-09-17 上海大唐盛隆制冷科技有限公司 Steel-belt type polyurethane continuous laminating machine
CN102555260A (en) * 2012-01-18 2012-07-11 敦化市亚联机械制造有限公司 Double-steel tape continuous press with constant spacing and constant pressure control for producing composite material
DE202015102400U1 (en) * 2015-05-11 2016-07-12 Dieffenbacher GmbH Maschinen- und Anlagenbau Continuously working press

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Granted publication date: 20100217

Effective date of abandoning: 20090603