CN103801637B - The truss cutting mechanism of triangular form truss production line - Google Patents
The truss cutting mechanism of triangular form truss production line Download PDFInfo
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- CN103801637B CN103801637B CN201410055298.6A CN201410055298A CN103801637B CN 103801637 B CN103801637 B CN 103801637B CN 201410055298 A CN201410055298 A CN 201410055298A CN 103801637 B CN103801637 B CN 103801637B
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Abstract
The present invention discloses a kind of truss cutting mechanism of triangular form truss production line, and its structure comprises: upper shear, down cut device; On it, shear comprises: scissors is loaded onto respectively in two the upper shear arm one end be hinged on a upper jointed shaft, two upper shear arm other ends hinged crankshaft driving mechanisms respectively, and crankshaft driving mechanism drives two upper shear arms to shear to revolve muscle; Down cut device comprises: two down cut arms of hinged first time jointed shaft and second time jointed shaft respectively, and scissors is loaded in two down cut arm one end; Two the down cut arm other end hinged crankshaft driving mechanism both sides respectively, crankshaft driving mechanism drives two down cut arms to shear backspin muscle.Beneficial effect of the present invention is: power is little, impacts little to electrical network, and structure is simple, and cost is low; Avoid two scissors to hit cutter, long service life, improve and shear truss quality; After shearing, backspin muscle otch is smooth, avoids triangular form truss inboard width to narrow, causes the defect that triangular form truss is out of shape.
Description
Technical field
What the present invention relates to is triangular form truss production line, particularly be the truss cutting mechanism of triangular form truss production line.
Background technology
At present, the triangular form truss of the truss great majority of domestic production to be cross section be triangular form, triangular form truss comprises: one revolves muscle, two backspin muscle and be separately fixed at the two zigzag abdomen muscle revolving muscle and two backspin muscle sides.In triangular form truss production line, cutting mechanism generally includes following three kinds of forms:
The first is that hydraulic levels directly pushes away cut mode, and its structure comprises: hydraulic cylinder, and hydraulic cylinder is fixed in frame, and the piston rod of hydraulic cylinder connects the movable tool rest that a movable blade is housed; The fixing tool rest that dead knife is housed is fixed in frame; Under the promotion of hydraulic cylinder, movable blade moves shearing triangular form truss along the side of dead knife.The defect that hydraulic levels directly pushes away cut mode is: owing to shearing whole truss by a movable blade, and crop place causes truss integral bending serious, affects truss linearity.
The second way is eccentric shoe swing shearing mode, its structure comprises: motor reducer, on motor reducer output shaft, fixing cut-out eccentric shaft, cuts off the hinged cutting by ejector pin one end of eccentric shaft end, cuts the end push rod other end and connects the movable tool rest that a movable blade is housed; What be positioned at movable tool rest side is fixing tool rest with dead knife, and fixing tool rest is fixed in frame, and under motor reducer drives, movable blade moves along the side of dead knife and shears triangular form truss.The defect of eccentric shoe swing shearing mode is: owing to shearing whole truss by a movable blade, and crop place causes truss integral bending serious, affects truss linearity; In addition, motor reducer is sheared interval start and stop and is impacted electrical network large, and brake is fragile, and power of motor is large.
The third is hydraulic shearing type, its structure comprises: adopt two shear arms of the identical specular of structure to be hinged on a jointed shaft respectively simultaneously, respectively scissors is housed in one end of two shear arm the same sides, connect on the double piston-rod of a double-piston way moving hydraulic cylinder at two shear arm other ends simultaneously, the piston rod of hydraulic cylinder drives two shear arms to rotate around a jointed shaft simultaneously, makes one end scissor cut triangular form truss of two shear arms.The defect of hydraulic shearing type is: first, shears truss with scissors relative movement corresponding on two shear arm one end simultaneously, and cause the spacing of triangular form truss two abdomen muscle to reduce, namely triangular form truss inboard width narrows, and causes triangular form truss to be out of shape; Secondly, scissors shape scissors triangular in shape on two shear arm one end, the wedge angle of two triangle scissors is relative, under the double piston-rod of hydraulic cylinder drives, the relative movement of two triangle scissors, when the wedge angle of two triangle scissors contacts, namely the shearing of triangular form truss is completed, in shear history, the wedge angle of frequent appearance two scissors bumps against together, causes scissors to damage.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned technology, a kind of two eccentric shafts being provided with positional symmetry on bent axle are provided, described two eccentric shafts are equipped with the shear arm of shear knife, to the truss cutting mechanism of the triangular form truss production line that triangular form truss is sheared respectively by hinged two one end of linking arm.
The technical scheme solved the problems of the technologies described above is:
A truss cutting mechanism for triangular form truss production line, described truss cutting mechanism comprises: upper jointed shaft is fixed in frame; Scissors is installed respectively in one end of two upper shear arm the same sides, and two upper scissors are positioned at the both sides of revolving muscle; Two upper shear arm other ends are hinged on the linking arm of crankshaft driving mechanism both sides respectively, crankshaft driving mechanism drives both sides linking arm to stretch out simultaneously or the upper shear arm other end of the drive two that bounces back swings around upper jointed shaft simultaneously, the upper scissors relative movement on two upper shear arm one end is sheared on one and revolves muscle; Described down cut device comprises: two down cut arms of the identical specular of structure, and two down cut arms are hinged on first time jointed shaft and second time jointed shaft respectively, and first time jointed shaft and second time jointed shaft are fixed in frame; Lower scissors is installed respectively in one end of two down cut arm the same sides, and two lower scissors lay respectively at the outside of two backspin muscle; Between two backspin muscle, be provided with a lower fixed cutting tool, lower fixed cutting tool is fixed in frame; Two down cut arm other ends are hinged on the linking arm of crankshaft driving mechanism both sides respectively, crankshaft driving mechanism drives both sides linking arm to stretch out simultaneously or drive two the down cut arm other ends that bounce back swing around first time jointed shaft and second time jointed shaft respectively, makes two lower scissors backspin muscle of each self cleavage between each lower scissors and lower fixed cutting tool respectively.
Preferred version is: described crankshaft driving mechanism comprises: with the bent axle that motor connects, two linking arms that structure is identical; Described crankshaft two end difference hinged support is on the bearing block fixing with frame; Two eccentric shafts bent axle having structure identical, two eccentric shafts are positioned at the symmetric position of crankshaft center axis both sides; Hinged linking arm one end being positioned at bent axle both sides respectively on two eccentric shafts, two linking arm other ends connect one end of movable joint screw rod respectively, the other end hinged upper shear arm other end or the down cut arm other end respectively of two movable joint screw rods.
Preferred version is: the structure that described two upper shear arms install scissors is identical, and its structure includes: go up scissors, be threaded two upper cutter head pressing plates in hole and the upper cutter head with two through holes; Upper scissors comprises blade and taper handle of a knife, taper handle of a knife both sides tapered side respectively cunning fit between two identical upper cutter head pressing plate tapered side of structure, a side of the bottom surface of the taper handle of a knife between two upper cutter head pressing plates contact upper cutter head; Two upper cutter head pressing plate one end are fitted in the different groove on upper cutter head side respectively, and another side of upper cutter head is close on shear arm; After two upper scissors bolts run through two through holes on two upper shear arms and two through holes on upper cutter head respectively, its end of thread screws in the screwed hole of two upper cutter head pressing plates, the taper handle of a knife of upper scissors is fixed and is stuck between two upper cutter head pressing plates, and upper scissors is fixed on two upper shear arms.
Preferred version is: the blade counterpoise of the upper scissors on described two on shear arm one end is combined in a shear line shears and revolves muscle; The blade of two lower scissors is respectively along the lateral shear backspin muscle of lower fixed cutting tool.
The invention has the beneficial effects as follows: the present invention overcomes the defect of prior art, the crankshaft driving mechanism that a motor drives is equipped with in the present invention respectively on upper shear and down cut device, bent axle is provided with two eccentric shafts of positional symmetry, two eccentric shafts, by the hinged upper shear arm with upper scissors of linking arm and the down cut arm with lower scissors, complete respectively in shearing and revolve muscle and shearing backspin muscle.
The present invention has swung in shearing with a motor driving crankshaft driving mechanism driving shear arm revolves muscle and shearing backspin muscle, and have power little, impact little to electrical network, structure is simple, the advantage that cost is low; The present invention adopts two upper scissors blades counterpoises to be combined in and a shear line shears revolves muscle, and shear history avoids two scissors to hit cutter phenomenon, increases the service life, and improves and shears truss quality; The blade of two lower scissors is respectively along the lateral shear backspin muscle of lower fixed cutting tool, and after shearing, backspin muscle otch is smooth, and shear effect is good; The present invention avoids triangular form truss inboard width to narrow, and causes the defect that triangular form truss is out of shape.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is P portion enlarged drawing in Fig. 1;
Fig. 4 be in Fig. 3 B to enlarged drawing;
Fig. 5 is E-E sectional view in Fig. 3;
Fig. 6 is the G-G sectional view of Fig. 1;
Fig. 7 is D direction view in Fig. 1, shows two lower scissors and shear two lower edge muscle respectively along lower fixed blade in figure.
" sequence number in accompanying drawing illustrates "
1: bent axle; 1a: the first eccentric shaft; 1b: the second eccentric shaft; 2: frame; 2a: bearing block; 3a: the first linking arm; 3b: the second linking arm; 4: motor; 5: upper cutter head; 6: upper cutter head pressing plate; 7: upper scissors; 7a: taper handle of a knife; 7b: blade; Shear arm on 8a: the first; Shear arm on 8b: the second; 9a: the first down cut arm; 9b: the second down cut arm; 13: bearing pin; 14: upper scissors bolt; 15: upper jointed shaft; 17: movable joint screw rod; 18: locking nut; 22a: the first time jointed shaft; 22b: the second time jointed shaft; 24: lower scissors; 25: lower fixed blade; 30: wind up muscle; 31: triangular form truss; 32: lower edge muscle; 40: crankshaft driving mechanism; W: shear line.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 is front view of the present invention; Fig. 2 is the A direction view of Fig. 1; Fig. 3 is P portion enlarged drawing in Fig. 1; Fig. 4 be in Fig. 3 B to enlarged drawing; Fig. 5 is E-E sectional view in Fig. 3; Fig. 6 is the G-G sectional view of Fig. 1; Fig. 7 is D direction view in Fig. 1, shows two lower scissors and shear two lower edge muscle respectively along lower fixed blade in figure.
As shown in Figure 1, triangular form truss 31 comprises: one revolve muscle 30, two backspin muscle 32 and be separately fixed at two zigzag abdomen muscle (not marking sequence number in figure) of revolving muscle 30 and two backspin muscle 32 sides.
The invention provides the truss cutting mechanism on a kind of triangular form truss production line, described truss cutting mechanism comprises: shearing revolved the upper shear of muscle 30, shear the down cut device of two backspin muscle 32.
Described upper shear comprises: two upper shear arms of the specular that structure is identical, i.e. shear arm 8b on shear arm 8a and second on first, on first, on shear arm 8a and second, shear arm 8b is hinged on a upper jointed shaft 15 simultaneously, and upper jointed shaft 15 is fixed in frame 2; On first, on shear arm 8a and second, one end of shear arm 8b the same side installs scissors 7 respectively, and two upper scissors 7 are positioned at the both sides of revolving muscle 30; On first, on shear arm 8a and second, the shear arm 8b other end is hinged on the linking arm of crankshaft driving mechanism 40 both sides respectively, namely on the first linking arm 3a and the second linking arm 3b; Crankshaft driving mechanism 40 drive the first linking arm 3a of both sides and the second linking arm 3b to stretch out simultaneously or in the drive first that bounces back on the shear arm 8a other end and second the shear arm 8b other end swing around upper jointed shaft 15 simultaneously, upper scissors 7 relative movement on upper scissors on first on shear arm 8a one end 7 and second on shear arm 8b one end is sheared on one and revolves muscle 30.
Described down cut device comprises: two down cut arms of the identical specular of structure, i.e. the first down cut arm 9a and the second down cut arm 9b, first down cut arm 9a and the second down cut arm 9b is hinged on first time jointed shaft 22a and second time jointed shaft 22b respectively, and first time jointed shaft 22a and second time jointed shaft 22b is separately fixed in frame 2; One end of the first down cut arm 9a and second down cut arm 9b the same side installs lower scissors 24 respectively, and two lower scissors 24 lay respectively at the outside of two backspin muscle 32; Between two backspin muscle 32, be provided with a lower fixed cutting tool 25, lower fixed cutting tool 25 is fixed in frame 2; On the first linking arm 3a that first down cut arm 9a and the second down cut arm 9b other end are hinged on crankshaft driving mechanism 40 both sides respectively and the second linking arm 3b, crankshaft driving mechanism 40 drives the first linking arm 3a of both sides and the second linking arm 3b to stretch out simultaneously or the other end of the drive first down cut arm 9a that bounces back and the other end of the second down cut arm 9b swing around first time jointed shaft 22a and second time jointed shaft 22b respectively, makes two lower scissors 24 backspin muscle 32 of each self cleavage between each lower scissors 24 and lower fixed cutting tool 25 respectively.
As shown in Figure 1 and Figure 2, described upper shear with there is in down cut device the identical crankshaft driving mechanism of structure 40 respectively, its structure includes: the first linking arm 3a identical with the bent axle 1 that motor 4 connects, structure and the second linking arm 3b; Described bent axle 1 two ends difference hinged support is on the bearing block 2a fixing with frame 2; Two eccentric shafts that bent axle 1 has structure identical, namely the first eccentric shaft 1a and the second eccentric shaft 1b, the first eccentric shaft 1a and the second eccentric shaft 1b are positioned at the symmetric position of bent axle 1 central axis both sides; Hinged first linking arm 3a one end and second linking arm 3b one end being positioned at bent axle 1 both sides respectively on the first eccentric shaft 1a and the second eccentric shaft 1b, the first linking arm 3a other end and the second linking arm 3b other end are fixedly connected with one end of movable joint screw rod 17 respectively by locking nut 18, the other end of two movable joint screw rods 17 is respectively by the shear arm 8b other end on the shear arm 8a other end and second on bearing pin 13 hinged first or the first down cut arm 9a other end and the second down cut arm 9b other end.
As shown in Fig. 1, Fig. 3 to Fig. 5, on described first, shear arm 8a is identical with the structure that shear arm 8b on second installs scissors 7, and its structure includes: go up scissors 7, be threaded two upper cutter head pressing plates 6 in hole and the upper cutter head 5 with two through holes; Upper scissors 7 comprises blade 7b and taper handle of a knife 7a, taper handle of a knife 7a both sides tapered side respectively cunning fit between two identical upper cutter head pressing plate 6 tapered side of structure, a side of the bottom surface of the taper handle of a knife 7a between two upper cutter head pressing plates 6 contact upper cutter head 5; Two upper cutter head pressing plate 6 one end are fitted in the different groove on upper cutter head 5 one sides respectively, and another side of upper cutter head 5 to be close on first on shear arm 8a and second on shear arm 8b;
On first, shear arm 8a has two through holes, after two upper scissors bolts 14 run through two through holes on first on shear arm 8a and two through holes on upper cutter head 5 respectively, its end of thread screws in the screwed hole of two upper cutter head pressing plates 6.
On second, shear arm 8b has two through holes, after two upper scissors bolts 14 run through two through holes on second on shear arm 8b and two through holes on upper cutter head 5 respectively, its end of thread screws in the screwed hole of two upper cutter head pressing plates 6.
Two upper cutter head pressing plates 6 are fastened on after in the groove on upper cutter head 5 one sides by above-mentioned two upper scissors bolts 14, the taper handle of a knife 7a of upper scissors 7 is fixed and is stuck between two upper cutter head pressing plates 6, and upper scissors 7 to be separately fixed on first on shear arm 8a and second on shear arm 8b.
The blade 7b counterpoise of the upper scissors 7 on the blade 7b and second of the upper scissors 7 on described first on shear arm 8a one end on shear arm 8b one end is combined in a shear line W shears and revolves muscle 30; The blade of two lower scissors 24 is respectively along the lateral shear backspin muscle 32 of lower fixed cutting tool 25.
Below the course of work is described:
After the motor 4 being arranged in the crankshaft driving mechanism 40 of shear is energized, bent axle 1 rotates, the first linking arm 3a and the second linking arm 3b is driven to stretch out simultaneously or bounce back respectively, to drive on first the shear arm 8b other end on the shear arm 8a other end and second to swing around upper jointed shaft 15 simultaneously, upper scissors 7 relative movement on upper scissors on first on shear arm 8a one end 7 and second on shear arm 8b one end is sheared on one and revolves muscle 30; Bent axle 1 has turned around once to the shearing of above revolving muscle 30.
After the motor 4 being arranged in the crankshaft driving mechanism 40 of down cut device is energized, bent axle 1 rotates, the first linking arm 3a and the second linking arm 3b is driven to stretch out simultaneously or bounce back respectively, drive the first down cut arm 9a other end and the second down cut arm 9b other end to swing around first time jointed shaft 22a and second time jointed shaft 22b respectively, make two lower scissors 24 backspin muscle 32 of each self cleavage between each lower scissors 24 and lower fixed cutting tool 25 respectively; Bent axle 1 has turned around to the shearing of two backspin muscle 32.
Claims (3)
1. a truss cutting mechanism for triangular form truss production line, described truss cutting mechanism comprises: shearing revolved the upper shear of muscle (30), shear the down cut device of two backspin muscle (32), it is characterized in that,
Described upper shear comprises: two upper shear arm (8a of the specular that structure is identical, 8b), two upper shear arm (8a, 8b) be hinged on a upper jointed shaft (15), upper jointed shaft (15) is fixed in frame (2) simultaneously; One end of two upper shear arm (8a, 8b) the same sides installs scissors (7) respectively, and two upper scissors (7) are positioned at the both sides of revolving muscle (30); Two upper shear arm (8a, 8b) other end is hinged on the linking arm (3a of crankshaft driving mechanism (40) both sides respectively, 3b), crankshaft driving mechanism (40) drives both sides linking arm (3a, 3b) to stretch out or the upper shear arm (8a of the drive two that bounces back simultaneously, 8b) other end swings around upper jointed shaft (15) simultaneously, upper scissors (7) relative movement on two upper shear arm (8a, 8b) one end is sheared on one and revolves muscle (30);
Described down cut device comprises: two down cut arm (9a of the identical specular of structure, 9b), two down cut arm (9a, 9b) be hinged on first time jointed shaft (22a) and second time jointed shaft (22b) respectively, first time jointed shaft (22a) and second time jointed shaft (22b) are fixed in frame (2); One end of two down cut arm (9a, 9b) the same sides installs lower scissors (24) respectively, and two lower scissors (24) lay respectively at the outside of two backspin muscle (32); Between two backspin muscle (32), be provided with a lower fixed cutting tool (25), lower fixed cutting tool (25) is fixed in frame (2); Two down cut arm (9a, 9b) other end is hinged on the linking arm (3a of crankshaft driving mechanism (40) both sides respectively, 3b), crankshaft driving mechanism (40) drives both sides linking arm (3a, 3b) to stretch out or drive two the down cut arm (9a that bounce back simultaneously, 9b) other end swings around first time jointed shaft (22a) and second time jointed shaft (22b) respectively, make two lower scissors (24) respectively each self cleavage be positioned at the backspin muscle (32) between each lower scissors (24) and lower fixed cutting tool (25);
Described two upper shear arm (8a, 8b) distinguish the identical upper scissors (7) of mounting structure, its structure includes: go up scissors (7), be threaded two upper cutter head pressing plates (6) in hole and the upper cutter head (5) with two through holes; Upper scissors (7) comprises blade (7b) and taper handle of a knife (7a), taper handle of a knife (7a) both sides tapered side respectively cunning fits between two identical upper cutter head pressing plate (6) tapered side of structure, is positioned at a side of bottom surface contact upper cutter head (5) of the taper handle of a knife (7a) between two upper cutter head pressing plates (6); Two upper cutter head pressing plate (6) one end are fitted in the different groove on upper cutter head (5) sides respectively, and another side of upper cutter head (5) is close on shear arm (8a, 8b); Two upper scissors bolts (14) run through two upper shear arm (8a respectively, after two through holes 8b) and two through holes on upper cutter head (5), its end of thread screws in the screwed hole of two upper cutter head pressing plates (6), the taper handle of a knife (7a) of upper scissors (7) is fixed and is stuck between two upper cutter head pressing plates (6), upper scissors (7) is fixed on two upper shear arms (8a, 8b).
2. according to the truss cutting mechanism of the triangular form truss production line described in claim 1, it is characterized in that, described crankshaft driving mechanism (40) comprising: with the bent axle (1) that motor (4) connects, two linking arms (3a, 3b) that structure is identical; Described bent axle (1) two ends difference hinged support is on the bearing block (2a) fixing with frame (2); Two eccentric shafts (1a, 1b) that bent axle (1) has structure identical, two eccentric shafts (1a, 1b) are positioned at the symmetric position of bent axle (1) central axis both sides; At two eccentric shaft (1a, hinged linking arm (the 3a being positioned at bent axle (1) both sides respectively 1b), 3b) one end, two linking arm (3a, 3b) other end connects one end of movable joint screw rod (17) respectively, the other end hinged upper shear arm (8a, the 8b) other end or down cut arm (9a, the 9b) other end respectively of two movable joint screw rods (17).
3. according to the truss cutting mechanism of the triangular form truss production line described in claim 1, it is characterized in that, blade (7b) counterpoise of the upper scissors (7) on described two on shear arm (8a, 8b) one end is combined in a shear line (W) shears and revolves muscle (30); The blade of two lower scissors (24) is respectively along the lateral shear backspin muscle (32) of lower fixed cutting tool (25).
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| CN201410055298.6A CN103801637B (en) | 2014-02-19 | 2014-02-19 | The truss cutting mechanism of triangular form truss production line |
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| CN201410055298.6A CN103801637B (en) | 2014-02-19 | 2014-02-19 | The truss cutting mechanism of triangular form truss production line |
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| CN103801637B true CN103801637B (en) | 2015-11-18 |
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| CN112620539A (en) * | 2020-12-18 | 2021-04-09 | 建科机械（天津）股份有限公司 | Truss footing cutting device |
| CN115288477A (en) * | 2022-08-10 | 2022-11-04 | 徐州巴特工程机械股份有限公司 | House building forcible entry accessory |
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| CN103801637A (en) | 2014-05-21 |
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