CN204657336U - A kind of U-shaped beam extruder with liner plate and joist device - Google Patents

Abstract

The utility model discloses a kind of U-shaped beam extruder with liner plate and joist device, comprise frame, bending oil cylinder, band liner plate mold, band liner plate bed die, joist device, hydraulic system, bead assist device, described bending cylinder block is connected on described frame entablature; Described bending cylinder piston rod is connected with described band liner plate mold by piston flange seat; Described band liner plate bed die is by L shape pressing plate and be bolted in frame; Described joist device is connected between frame and band liner plate bed die; Described bead assist device is connected on band liner plate bed die; Described hydraulic system is arranged on upper rack or can is independently arranged near frame, connects each corresponding operating cylinder by oil circuit.

Description

A kind of U-shaped beam extruder with liner plate and joist device

Technical field

The invention belongs to machining manufacturing equipment field, refer more particularly to the special equipment of a kind of weighing apparatus production and a kind of U-shaped beam extruder.

Background technology

As shown in Figure 1, a kind of U-lag girder steel (being called for short U-shaped beam), being important component part during existing automobile weighing scale platform manufactures, is main spandrel girder in weighing platform structure, and the automobile load of tens tons, up to a hundred tons is welded to form weighing platform to bear primarily of the U-shaped beam of these varying numbers and intensity; Different according to magnitude of load, these U-shaped depths of beam, length are different, and some thicknesss of slab are different, and some width are different; Current weighing apparatus manufacturer mainly conventional U-shaped trammel lattice is the U-shaped beams according to the supporting differing heights of different tonnage and length, highly general at 250mm to 500mm, length is generally at 4m to 9m, the each producer of width differs, general at 200mm to 300mm, it is generally identical that each producer commonly uses U-shaped beam width, also has individual product to use different in width U-shaped beam; It is all fold at the upper a lot of of bender (a kind of standard machine tool) by manually lifting band steel (blank is band steel) that existing weighing apparatus producer processes these U-shaped beams, needs multiple tracks bending to be repeatedly shaped; In conventional U-shaped beam, longer Yi Tiaoliang weighs about 400kg, and need five to six people able-bodied laborers to operate, general U-shaped beam also wants 3 ~ 4 operative, and labour intensity is large; A lot of producer has to that long beam is changed into more piece short beam and respells weldering and form, and efficiency is low, poor quality.

Summary of the invention

The object of the invention is to overcome above-mentioned existing backward technology and a kind of U-shaped beam extruder with liner plate and joist device is provided, it is a kind of special equipment, want technical solution problem to be: the U-shaped beam that described extruding function mould is once suppressed, and can many specification products such as different in width be produced, product stripping will facilitate, product is convenient from undercarriage after mold releasability, and good product quality, production efficiency are high, labour intensity is little, use labour less, save production cost.

For achieving the above object, the present invention is achieved through the following technical solutions:

A kind of U-shaped beam extruder with liner plate and joist device, comprise frame 1, bending oil cylinder 2, band liner plate mold 4, band liner plate bed die 7, joist device 60, hydraulic system 30, bead assist device 9, multiple described bending oil cylinder 2 cylinder body is connected on the cylinder flange seat 13 of described frame 1 entablature; Described bending oil cylinder 2 piston rod is connected with described band liner plate mold 4 by piston flange seat 26; Described band liner plate bed die 7 is connected with frame 1 with bolt 77 by L shape pressing plate 75, such permission frame upper/lower die fixing threaded hole 16 position relatively large deviation, band liner plate bed die 7 can be fixed on tram, and utilize the elastic reaction of L shape pressing plate 75, band liner plate bed die is connected more firm; Described joist device 60 is connected between frame 1 and band liner plate bed die 7, joist device 60 comprises multiple demoulding oil jar 5, one piece of stripper plate 6, multiple joist and rolls 601, when demoulding oil jar works, stretching out piston rod drives stripper plate to rise, after stripper plate rising puts in place, joist rolls also can along with the upper surface reaching stripper plate; U-shaped beam after extrusion molding, can be tightly stuck in band liner plate bed die groove in band liner plate bed die 7, needs stripper plate in joist device 60 U-shaped back out; Described bead assist device 9 is connected on band liner plate bed die 7, when blank advances time, be pressed on the ball 93 on bead assist device 9, because ball can along all directions flexible rotating, so no matter longitudinally still transverse shifting blank is just very easy and convenient; After blank advances, operator can use Steel Ruler, and measurement center, blank two ends relative lower dies centerline deviation, moves blank until blank is moved to centering position, and more slowly, but blank centering can ensure this way efficiency in the same old way; Described hydraulic system 30 is arranged on frame 1 top or can is independently arranged near frame, is connected to bending oil cylinder 2 and demoulding oil jar 5, controls corresponding cylinder efficient by hydraulic oil pipe system by oil circuit; Blank is come by crane for hoisting, blank one end is inserted into above band liner plate bed die 7 from frame side feed opening, unloads crane gib head after inserting half, more manually blank push completely carry out above band liner plate bed die compressing; After blank is compressing in band liner plate bed die, demoulding oil jar 5 (this order condition controls by oil circuit self-locking system) could be risen again after first must rising band liner plate mold 4, the U-shaped beam of such shaping can tightly be stuck in band liner plate bed die groove, and generation can be avoided to carry liner plate mold problem secretly; And then rise stripper plate 6, the U-shaped beam be shaped from the demoulding in band liner plate bed die 7; 601 are rolled owing to being provided with multiple joist in joist device 60, when U-shaped beam is after the demoulding of band liner plate bed die 7, now multiple joist rolls the upper surface that 601 all stretch out stripper plate 6, hold in the palm bottom U-shaped beam, each joist rolls 601 can flexible rotating, creates booster action, and such operating personnel just easily can release frame the U-shaped beam be shaped like a cork above joist rolls 601, hang away with crane again, complete a working cycles.

Wherein, described frame 1 comprises multiple closed memorial archway 11, described closed memorial archway 11 is welded by steel plate or shaped steel, and between described closed memorial archway 11, top is coupled together by the entablature 12 of Plate Welding, is welded with cylinder flange dish 13 for connecting bending oil cylinder 2 below described entablature 12; Between described closed memorial archway 11, bottom is coupled together by the lower box-girder 14 of Plate Welding, and described lower box-girder 14 is provided with mould oil cylinder holes 15 and bed die fixing threaded hole 16 above; Described lower box-girder 14 inside is provided with demoulding oil jar and connects bearing for fixing demoulding oil jar 5; Be provided with lower margin hole 17 bottom described closed memorial archway 11 to can be used for being connected with foot bolt fundamentally, ensure that frame is more stable.

Wherein, described bending oil cylinder 2 cylinder body is provided with flange connecting hole 21, and piston-rod end is provided with spill circle 22; Described bending oil cylinder 2 piston rod is coupled together with bolt 27 by piston flange seat 26 and two and half flange blocks 25; Described piston flange seat 26 is provided with piston hole 261 and screw 262; Half described flange block 25 is provided with the spill circle 22 on arc groove 251 and through hole 252, two and half flange block on arc groove 251 seized piston bar, and such bending oil cylinder 2 has connected with piston flange seat 26.

Wherein, described band liner plate mold 4 becomes box girder structure by Plate Welding; Base plate 42 both sides of described band liner plate mold 4 are provided with multiple connecting screw hole 421; Described base plate 42 both sides are coupled together liner plate 44 by screw 43; Described liner plate 44 is provided with counter sink 441, and described liner plate can be changed different-thickness and use; Piston flange seat 26 is welded with above described band liner plate mold 4.

Wherein, described band liner plate bed die 7 is welded by two pieces of risers 71 and one piece of base plate 72 and some gussets 73; Described base plate 72 centre position arranges several large round mouths 74 and is connected with stripper plate for allowing the piston rod of demoulding oil jar 5 extend there through; Described base plate 72 is also provided with the rigging position of multiple joist hole 722 for providing joist to roll 601 bindiny mechanisms; Abrasion-proof backing block 78 is provided with inside described two pieces of risers 71, described abrasion-proof backing block 78 is provided with counter sink 79, described abrasion-proof backing block 78 is connected with riser 71 by screw 781, when equipment Reusability time, abrasion-proof backing block 78 more can stand use, can change after abrasion-proof backing block 78 damages, avoid whole bed die to scrap, abrasion-proof backing block can also be replaced with different-thickness and use; Described base plate 72 both sides are provided with connecting hole 76 for fixing bead assist device 9; Described band liner plate bed die 7 both sides are connected with frame 1 with bolt 77 with multiple L shape pressing plate 75; Described L shape pressing plate 75 is provided with through hole 751.

Wherein, described joist device 60 comprises multiple demoulding oil jar 5, one piece of stripper plate 6, multiple joist and rolls 601, and described demoulding oil jar 5 back seat is provided with connecting hole 51 for being connected with frame, and piston rod is provided with connecting screw hole 52 for being connected with stripper plate, the piston rod of demoulding oil jar 5 is connected with stripper plate 6 with the large round mouth 74 on band liner plate bed die through the mould oil cylinder holes 15 in frame, described stripper plate 6 is provided with multiple counter sink 61, multiple idler pulley mouth 62 and hinged seat 63, described hinged seat 63 is provided with pin-and-hole 631, above-mentioned joist roll 601 inside be provided with bearing and by bearing pin A602 with stick up bar 603 one end and be connected, described sticking up in the middle part of bar 603 is connected with the hinged seat 63 on above-mentioned stripper plate by bearing pin B604, the described other end sticking up bar 603 is connected with connecting rod 606 by bearing pin C605, described connecting rod 606 other end is connected with fork 608 by bearing pin D607, described fork 608 other end is connected with Connection Block 610 by bearing pin E609, and described Connection Block 610 is fixedly connected in frame 1, when U-shaped beam is after band liner plate bed die 7 internal shaping before the demoulding, joist in joist device 60 rolls 601 and is in the idler pulley mouth 62 of stripper plate 6, in time starting the demoulding, demoulding oil jar 5 works, piston rod stretches out, rise with stripper plate 6, stripper plate 6 gradually ejects band liner plate bed die 7 U-shaped beam finished product, joist in this time joist device 60 rolls 601 also along with stripper plate 6 is toward rising, until demoulding oil jar 5 piston rod stretches out when putting in place, joist rolls 601 and also stretches out stripper plate 6 upper surface U-shaped corbel, due to each joist roll 601 inside bearing is housed can flexible rotating, such operating personnel just can push away away the U-shaped beam be shaped like a cork above joist rolls 601.

Wherein, described bead assist device 9 comprises bearing 91, pearl lid 92, ball 93, and described bearing 91 is provided with rounded channels 911; Described pearl lid 92 is provided with sphere hole 921 and countersunk screw hole 922; Described ball 93 is connected between above-mentioned bearing 91 and pearl lid 92 by sunk screw 94; Above-mentioned bearing 91 is connected on band liner plate bed die 7 by bolt 95; When blank advances time, be pressed on ball 93, because ball can along all directions flexible rotating, so no matter longitudinally still transverse shifting blank is just very easy and convenient.

Beneficial effect of the present invention is: compact conformation is simple, occupation of land is few, hydraulic control, and easy to operate, product undercarriage is easily convenient, the application is provided with joist device, when U-shaped beam is just from the band liner plate bed die demoulding, just rolled jack-up by the multiple joists in joist device, and joist roll inside be provided with bearing can flexible rotating, therefore the U-shaped beam of finished product just can not can release frame from stripper plate easily by other instrument (as little round steel etc.), hang away with crane again, this cleverly joist device to achieve product undercarriage easily convenient, the U-shaped beam once suppressed by the upper and lower mould of band liner plate can ensure that dimensionally stable, quality are good, forming speed is fast, due to the high-abrasive material plate of the replaceable different-thickness of the liner plate on upper and lower mould, therefore the gap of different in width can be formed between upper and lower mould, so just can process the blank of different-thickness, produce the U-shaped beam of varying strength, the U-shaped beam of different in width can also be processed, both many specifications U-shaped beam product can just be produced by the different-thickness of the upper and lower mould liner plate of adjustment, also beneficial is when after mould excessive wear, as long as change liner plate just can recover normal use, avoids whole set of die to scrap, saves use cost, bending cylinder piston rod is connected with band liner plate mold by piston flange seat, and connect rigidity so strong, syndeton handling ease processing cost is few, band liner plate bed die is connected with frame by L shape pressing plate, even if fixing threaded hole position exists relatively large deviation in such syndeton frame, band liner plate bed die can be fixed on tram, Joining Technology is ingenious, during the finished product demoulding, (by fluid pressure linkage system) could rise bottom knockout oil cylinder after first must rising band liner plate mold again, such order can ensure the disposable smooth fast demoulding of finished product, solves finished product and is stuck in the problem of can not getting out in band liner plate bed die groove, multiple bottom knockout oil cylinder is connected to stripper plate, and bottom U-shaped beam the U-shaped corbel be stuck in groove out by stripper plate holder, such whole piece U-shaped beam stress uniform shape does not change, and ensures that finished appearance quality is good, bead assist device can ensure that travelling stock is easy and convenient, because ball can along all directions flexible rotating in bead assist device, can play booster action regardless of the ball in bead assist device when longitudinal direction or transverse shifting blank, travelling stock is easily laborsaving, after above blank push belt liner plate bed die, operator can use Steel Ruler, measure center, blank two ends opposite band liner plate bed die centerline deviation, move blank until blank is moved to centering position, preferably configure two people operating personnel (if needing two to run with a people) cooperation respectively at blank two ends Survey control, the center line of blank is transferred to the center line of mould and overlaps, the product size symmetry that this makes it possible to ensure to suppress out is qualified, although this way efficiency more slowly, but device structure is simple, the less demanding enterprise of production capacity can be applicable to, as long as this equipment one to two people can complete production operation under having crane to assist, therefore equipment of the present invention can produce the U-shaped beam product of many specifications of different in width and different thickness of slab, can reach that quality is good, the demoulding easily, product undercarriage is convenient, yield rate is high, production efficiency is high, labour intensity is little, less with labour, the effect such as save production cost.

Accompanying drawing explanation

Fig. 1 existing U-lag steel beam structure schematic diagram;

Fig. 2 structural front view of the present invention;

Fig. 3 is the side view of Fig. 2;

Fig. 4 mid frame structural upright of the present invention schematic diagram;

Bending oil cylinder syndeton schematic diagram in Fig. 5 the present invention;

Fig. 6 is the piston flange holder structure schematic diagram in Fig. 5;

Fig. 7 is half flange block structure schematic diagram in Fig. 5;

Liner plate upper die structure schematic diagram is with in Fig. 8 the present invention;

Be with liner plate lower die structure in Fig. 9 the present invention and be fixedly connected with schematic diagram;

The front partial schematic diagram of stripper plate rising of joist device in Figure 10 the present invention;

The rear partial schematic diagram of stripper plate rising of joist device in Figure 11 the present invention;

Figure 12 is the demoulding oil jar structural representation in Figure 10 or Figure 11;

Figure 13 is the stripper plate structural representation in Figure 10 or Figure 11;

Bead assist device structural representation in Figure 14 the present invention.

Detailed description of the invention

Now by reference to the accompanying drawings, the specific embodiment of the invention is described in detail in detail:

As shown in Figure 2 and Figure 3, a kind of U-shaped beam extruder with liner plate and joist device, comprise frame 1, bending oil cylinder 2, band liner plate mold 4, band liner plate bed die 7, joist device 60, hydraulic system 30, bead assist device 9, multiple described bending oil cylinder 2 cylinder body is connected on the cylinder flange seat of described frame 1 entablature; Described bending oil cylinder 2 piston rod is connected with described band liner plate mold 4 by piston flange seat 26, half flange block 25, bolt 27; Described band liner plate bed die 7 is connected with frame 1 with bolt by L shape pressing plate 75, such permission frame upper/lower die fixing threaded hole position relatively large deviation, band liner plate bed die 7 can be fixed on tram, and utilize the elastic reaction of L shape pressing plate 75, band liner plate bed die be connected more firm; Described joist device 60 is connected between frame 1 and band liner plate bed die 7, joist device 60 comprises multiple demoulding oil jar, one piece of stripper plate, multiple joist roll, when demoulding oil jar works, stretching out piston rod drives stripper plate to rise, after stripper plate rising puts in place, joist rolls also can along with the upper surface reaching stripper plate; U-shaped beam after extrusion molding, can be tightly stuck in band liner plate bed die groove in band liner plate bed die 7, needs stripper plate in joist device 60 U-shaped back out; Described bead assist device 9 is connected to be with on liner plate bed die 7, when blank advances time, is pressed on the ball on bead assist device 9, and because ball can along all directions flexible rotating, so no matter longitudinally still transverse shifting blank is just very easy and convenient; After blank advances, operator can use Steel Ruler, and measurement center, blank two ends relative lower dies centerline deviation, moves blank until blank is moved to centering position, and more slowly, but blank centering can ensure this way efficiency in the same old way; Described hydraulic system 30 is arranged on frame 1 top or can is independently arranged near frame, is connected to bending oil cylinder 2 and demoulding oil jar, controls corresponding cylinder efficient by hydraulic oil pipe system by oil circuit; Blank is come by crane for hoisting, blank one end is inserted into above band liner plate bed die 7 from frame side feed opening, unloads crane gib head after inserting half, more manually blank push completely carry out above band liner plate bed die compressing; After blank is compressing in band liner plate bed die, demoulding oil jar (this order condition controls by oil circuit self-locking system) could be risen again after first must rising band liner plate mold 4, the U-shaped beam of such shaping can tightly be stuck in band liner plate bed die groove, and generation can be avoided to carry liner plate mold problem secretly; And then rise stripper plate, the U-shaped beam be shaped from the demoulding in band liner plate bed die 7; Roll owing to being provided with multiple joist in joist device 60, when U-shaped beam is after the demoulding of band liner plate bed die 7, now multiple joist rolls the upper surface all stretching out stripper plate, hold in the palm bottom U-shaped beam, each joist rolls can flexible rotating, creates booster action, and such operating personnel just easily can release frame the U-shaped beam be shaped from the joist side of rolling on like a cork, hang away with crane again, complete a working cycles.

As shown in Figure 4, described frame 1 comprises multiple closed memorial archway 11, described closed memorial archway 11 is welded by steel plate or shaped steel, and between described closed memorial archway 11, top is coupled together by the entablature 12 of Plate Welding, is welded with cylinder flange dish 13 for connecting bending oil cylinder below described entablature 12; Between described closed memorial archway 11, bottom is coupled together by the lower box-girder 14 of Plate Welding, and described lower box-girder 14 is provided with mould oil cylinder holes 15 and bed die fixing threaded hole 16 above; Described lower box-girder 14 inside is provided with demoulding oil jar and connects bearing for fixing demoulding oil jar; Be provided with lower margin hole 17 bottom described closed memorial archway 11 to can be used for being connected with foot bolt fundamentally, ensure that frame is more stable.

As shown in Fig. 5, Fig. 6, Fig. 7, the syndeton of described bending oil cylinder 2, described bending oil cylinder 2 cylinder body is provided with flange connecting hole 21, and piston-rod end is provided with spill circle 22; Described bending oil cylinder 2 piston rod is coupled together with bolt 27 by piston flange seat 26 and two and half flange blocks 25; Described piston flange seat 26 is provided with piston hole 261 and screw 262; Half described flange block 25 is provided with the spill circle 22 on arc groove 251 and through hole 252, two and half flange block on arc groove 251 seized piston bar, and such bending oil cylinder 2 has connected with piston flange seat 26.

As shown in Figure 8, described band liner plate mold 4 becomes box girder structure by Plate Welding; Base plate 42 both sides of described band liner plate mold 4 are provided with multiple connecting screw hole 421; Described base plate 42 both sides are coupled together liner plate 44 by screw 43; Described liner plate 44 is provided with counter sink 441, and described liner plate can be changed different-thickness and use; Piston flange seat 26 is welded with above described band liner plate mold 4.

As shown in Figure 9, described band liner plate bed die 7 is welded by two pieces of risers 71 and one piece of base plate 72 and some gussets 73; Described base plate 72 centre position arranges several large round mouths 74 and is connected with stripper plate for allowing the piston rod of demoulding oil jar extend there through; Described base plate 72 is also provided with the rigging position of multiple joist hole 722 for providing joist to roll bindiny mechanism; Abrasion-proof backing block 78 is provided with inside described two pieces of risers 71, described abrasion-proof backing block 78 is provided with counter sink 79, described abrasion-proof backing block 78 is connected with riser 71 by screw 781, when equipment Reusability time, abrasion-proof backing block 78 more can stand use, can change after abrasion-proof backing block 78 damages, avoid whole bed die to scrap, abrasion-proof backing block 78 can also be replaced with different-thickness and use; Described base plate 72 both sides are provided with fixing bead assist device connecting hole 76; Described band liner plate bed die 7 both sides are connected with frame with bolt 77 with multiple L shape pressing plate 75; Described L shape pressing plate 75 is provided with through hole 751.

As shown in Figure 10, Figure 11, Figure 12, Figure 13, described joist device 60 comprises multiple demoulding oil jar 5, one piece of stripper plate 6, multiple joist and rolls 601, described demoulding oil jar 5 back seat is provided with connecting hole 51 for being connected with frame, and piston rod is provided with connecting screw hole 52 for being connected with stripper plate, the piston rod of demoulding oil jar 5 is connected with stripper plate 6 with the large round mouth 74 on band liner plate bed die through the mould oil cylinder holes 15 in frame, described stripper plate 6 is provided with multiple counter sink 61, multiple idler pulley mouth 62 and hinged seat 63, described hinged seat 63 is provided with pin-and-hole 631, above-mentioned joist roll 601 inside be provided with bearing and by bearing pin A602 with stick up bar 603 one end and be connected, described sticking up in the middle part of bar 603 is connected with the hinged seat 63 on above-mentioned stripper plate by bearing pin B604, the described other end sticking up bar 603 is connected with connecting rod 606 by bearing pin C605, described connecting rod 606 other end is connected with fork 608 by bearing pin D607, described fork 608 other end is connected with Connection Block 610 by bearing pin E609, and described Connection Block 610 is fixedly connected in frame 1, when U-shaped beam is after band liner plate bed die 7 internal shaping before the demoulding, joist in joist device 60 rolls 601 and is in the idler pulley mouth 62 of stripper plate 6, in time starting the demoulding, demoulding oil jar 5 works, piston rod stretches out and rises with stripper plate 6, stripper plate 6 gradually ejects band liner plate bed die 7 U-shaped beam finished product, joist in this time joist device 60 rolls 601 also along with stripper plate 6 is toward rising, until demoulding oil jar 5 piston rod stretches out when putting in place, joist rolls 601 and also stretches out stripper plate 6 upper surface U-shaped corbel, due to each joist roll 601 inside bearing is housed can flexible rotating, such operating personnel just can push away away the U-shaped beam be shaped like a cork above joist rolls 601.

As shown in figure 14, described bead assist device 9 comprises bearing 91, pearl lid 92, ball 93, and described bearing 91 is provided with rounded channels 911; Described pearl lid 92 is provided with sphere hole 921 and countersunk screw hole 922; Described ball 93 is connected between above-mentioned bearing 91 and pearl lid 92 by sunk screw 94; Above-mentioned bearing 91 is connected on band liner plate bed die 7 by bolt 95; When blank advances time, be pressed on ball 93, because ball can along all directions flexible rotating, so no matter longitudinally still transverse shifting blank is just very easy and convenient.

Claims (7)

1. the U-shaped beam extruder with liner plate and joist device, it is characterized in that: comprise frame (1), bending oil cylinder (2), band liner plate mold (4), band liner plate bed die (7), joist device (60), hydraulic system (30), bead assist device (9), multiple described bending oil cylinder (2) cylinder body is connected on described frame (1) entablature (12); Described bending oil cylinder (2) piston rod is connected with described band liner plate mold (4) by piston flange seat (26); Described band liner plate bed die (7) is fixed in frame (1) by L shape pressing plate (75) and bolt (77); Described joist device (60) is connected between frame (1) and band liner plate bed die (7); Described bead assist device (9) is connected on band liner plate bed die (7); Described hydraulic system (30) is arranged on frame (1) top or can is independently arranged near frame, connects each corresponding operating cylinder by oil circuit.

2. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, it is characterized in that: described frame (1) comprises multiple closed memorial archway (11), described closed memorial archway (11) is welded by steel plate or shaped steel, between described closed memorial archway (11), top is coupled together by the entablature (12) of Plate Welding, and described entablature (12) below is welded with cylinder flange dish (13); Between described closed memorial archway (11), bottom is coupled together by the lower box-girder (14) of Plate Welding, and described lower box-girder (14) is provided with mould oil cylinder holes (15) and bed die fixing threaded hole (16) above; Described lower box-girder (14) inside is provided with demoulding oil jar and connects bearing; Described closed memorial archway (11) bottom is provided with lower margin hole (17).

3. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, it is characterized in that: described bending oil cylinder (2) cylinder body is provided with flange connecting hole (21), and piston-rod end is provided with spill circle (22); Described bending oil cylinder (2) piston rod is coupled together with bolt (27) by piston flange seat (26) and two and half flange blocks (25); Described piston flange seat (26) is provided with piston hole (261) and screw (262); Half described flange block (25) is provided with arc groove (251) and through hole (252).

4. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, is characterized in that: described band liner plate mold (4) becomes box girder structure by Plate Welding; Base plate (42) both sides of described band liner plate mold (4) are provided with multiple connecting screw hole (421); Described base plate (42) both sides are coupled together liner plate (44) by screw (43); Described liner plate (44) is provided with counter sink (441); Described band liner plate mold (4) top is welded with piston flange seat (26).

5. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, is characterized in that: described band liner plate bed die (7) is welded by two pieces of risers (71) and one piece of base plate (72) and some gussets (73); Described base plate (72) centre position arranges several large round mouths (74) and joist hole (722); Described two pieces of risers (71) inner side is provided with abrasion-proof backing block (78), described abrasion-proof backing block (78) is provided with counter sink (79), and described abrasion-proof backing block (78) is connected with riser (71) by screw (781); Described base plate (72) both sides are provided with connecting hole (76); Described band liner plate bed die (7) both sides are connected with frame with bolt (77) with multiple L shape pressing plate (75); Described L shape pressing plate (75) is provided with through hole (751).

6. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, it is characterized in that: described joist device (60) comprises multiple demoulding oil jar (5), one piece of stripper plate (6), multiple joist roll (601), described demoulding oil jar (5) back seat is provided with connecting hole (51), piston rod is provided with connecting screw hole (52), described stripper plate (6) is provided with counter sink (61), idler pulley mouth (62) and hinged seat (63), described demoulding oil jar (5) back seat is connected with frame (1), and the piston rod of described demoulding oil jar is connected with stripper plate (6) through being with the large round mouth (74) of liner plate bed die (7), above-mentioned joist roll (601) inside be provided with bearing and by bearing pin A (602) with stick up bar (603) one end and be connected, described bar (603) middle part of sticking up is connected with the hinged seat (63) on above-mentioned stripper plate by bearing pin B (604), the described other end sticking up bar (603) is connected with connecting rod (606) by bearing pin C (605), described connecting rod (606) other end is connected with fork (608) by bearing pin D (607), described fork (608) other end is connected with Connection Block (610) by bearing pin E (609), described Connection Block (610) is fixedly connected in frame (1).

7. a kind of U-shaped beam extruder with liner plate and joist device according to claim 1, it is characterized in that: described bead assist device (9) comprises bearing (91), Zhu Gai (92), ball (93), described bearing (91) is provided with rounded channels (911); Described Zhu Gai (92) is provided with sphere hole (921) and countersunk screw hole (922); Described ball (93) is connected between above-mentioned bearing (91) He Zhugai (92) by screw (94); Above-mentioned bearing (91) is connected on band liner plate bed die (7) by bolt (95).