B-8

Multifunction Bhears

INSTRUCTION

MANUAL

Content

Prefuce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I

I. The Performance of the Machine ..................................... 1

2. Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

3. Stru.ctl..rre ............... · ................................................... 2

4. The Lubrication and Maintenance of the Machine ................. 4

5. The Installation and use of the I\1achine ............................. 5

6. Electrical Circuit Diagram ............................................. 8

7. Weai-ing Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Preface

Q�-� Mw.tifi.m�thm Sh�� is � �m� pf m�w �h�ri� m�l'mni�m fQr �mti.ng P.l!!f� im9 ��tiP.n

bar. lt is widely applied in machine processing, mould making, construction and installation, water

and electricity trade etc. it has the features of heavy structure, convenient operating. outstanding

capabilit?', li�t wei¥11t, and easily movin¥. With its multifunctional capabilit?', it is suitable for

shearing plate, pressing section bar. drilling and mold cutting.

1. The performance of the machine

The machine is applicable for shearing cold-state round steel, angle, square steel, flat s�l and plate steel which have low carbon content and a tensile strength�4Skg / mm2• It is also applicable

for profile processing and punching of the angle and steel plate. The products of the same shape of

ncm-f�ITP.� m�t�I� ��P. p� prn��s� � s�iQ ��PY�- Thi$ ���11� is �specially appli�le for the

shearing of the steel materials in the factories and trades of machinery, construction and light

industry. It has the advantages of low power consumption, great power, small size; light weight,

compact structure, flexible operation, easy in use and maintenance.

Specifications of the Sheared Materials

Name of Round Steel Square Steel

Eauila-tera/ Flat Steel Steel Plats ..

the Steel Steel

Section .�· � L 1222'<1

--

Specifications f/>JO 2ox20 75x75x8 JO(Jx/2 b-=8

Punching & Profile Proces�lng

Punching Punching Long.

Range of Hole(Dia. I Hole(Dia. I of the Profiled Angle Sheared Inclined

Processing Thiclcnus of the

plate) plate

GJ ·[Ej r:p·

Shape �

6 �y .

Specifiaztion.r 12218 J7x40/8 ·L-70x70x6 J0xj()x6

l

2. Technical specifications

Shearing frequencr,

Motor:

Cverall Dimension( cm):

Weight:

3. Structure:

30 cuts / minute

2.2kw, 380V

90x50x 11 O(LxWxH)

520kg

This machine consists of motor, body, drivo syster, clutching system, operating section, etc. the

motor(l ) is fixed on the rear of the left and right support plates(15). The motor pu11ey(2) transfers

the power to the large pu1ley(4) throngh V-belt(3). The large pulley(4) and the bevel gear(5) are

coaxal and connected with keys. Another large bevel gear( 6) which is engaged with bevel gear( 5)

transfers the power to the eccentric shaft through axle(7) and a pair of spur gears(8,9), and

clutch(19). Because of the eccentric force of the eccentric axle, the connection rod (installed on the

eccentric axle) moves the large movable shear supporter(ll) up and down inside the body of the

machine. The movable sbear(l2) and upper shear(l3) as well as punch(l4). etc. are installed to the

large movable shear supporter. On the left support plate of the body corresponding frxed shear( 16),

lower shear(l 7) and punching die supporter(l 8) etc. are installed respectively. Because the movable.

The movable shear(12) and upper shear(13) as well as punch(l4), etc. are installed to the large

movable shear supporter. On the left support plate of the body corresponding fixed shear(16), lower

shear{l 7) and puncrung die supporter(l 8) etc. are installed respectively. Because the movable shear

moves up and down, back and fo� various of shaped materials can be sheared benveen the

movable shear and the fixed shear and plate material can be sheared between upper and lower,

shears. Between the punch pin and punching die, punching hole and shearing can be done.

The distance between the centres of the two eccentric shafts is 15mm. The stroke of shear is

27mm. When the eccentric axis turns with a speed of 30 RPM, the shear will move up and down in

the same speed. that is. maximwn shearing frequency is 30 cuts I minute.

Reciprocating motion of movable shear supporter is controlled by clutch. The foot-operated

switch(20) is pressed down. The operating connection-rod(21) is moved by the metal flexible axis

to leave the striking handle of turning key(22). Under the action of extension spring(24), the turning

key(23) is turned out and combined with the gear and the eccentric axis is moved by the gear to

complete the reciprocating motion of the movable shear supporter. As the foot-operated switch is

freed, the operating connection-rod stands up to the striking handle of twning key and the turning

key stands back to the elute� so the gear leaves the eccentric axis and then the movable shear

supporter shops.

2

Structure Diagram

l. motor 2. small puJJey 3. V-belt 4. large pull 5. bevel gear 6. large bevel gear· 7.axle 8. gear 9. gear 10. eccentric wheel l 1. large movable shear supporter 12. movable shear 13. upper shear 14. punching pin 15. left and right support plate 16. clipping-strip supporter 17. lower shear 18. punching die supporter 19. clutch 20. foot-operated switch

21. operating connection-rod 22._ striking handle of turning key 23. tumiq key 23: extension spring

,

4. The lubrication and maintenance of the machine

(1) The maintenance of the machine '· · ;

a. After the machine has been installed, cJean it and smear the machine with lubrication oil.

The machine will not be use4 tmtil it is sufficiently lubricated.

b. When the machine is running. pay attention to the temperature rise of shaft sleeve. beaing

and motor. The machine should be stopped touse is the temperature rise is too high.

c. The shears of call work positions and the impurities around should be cleaned in time.

d when each shift finishes its work, the machine must be cleaned, smeared with grease to

prevent it from rusting. If the machine is not used for a long time, the motor should be dismounted

and put in a dry place.

(2) The lubrication of the machine

Good lubrication method and correct lubrication oil c.an guarantee the normal running of the

machine and also can make its lifetime last longer. Therefore the user must pay attention to the

lubrication of the machine. CaJcium grease or lithium grease is used in this machine.

a The machine must be injected with fixed quantity of lubrication oil (grease) periodically in

accordance with the lubrication instruction.

b. The lubrication oil and grease should be stored in closed container and always kept clean.

c. If the machine is not used very often, the slide way must be smeared and always kept clean.

d. Lubrication Diagram.

Schematic Diagram

@------Calcium grease, the grease cup should not be turned and pressed Jess than three times in

each shift.

@•--No. 30 machinery oil, oil, injection should not be less than four times in ea.ch shift.

4

5. The installation and use of the machine

(1) The inst.allation of the machine

The machine should be fixed on the ground screws before it is used Before it is instalJcd, a

concrete base should be Mads in accordance with the position showed in the diagram. (For the

installation. please refer to the attached schematic diagram).

Schematic Diagram for the Base

(2) Preparatio.- before use

a. Turn the large puJJey with hand and see whether itis conect in engagement of the gears.

b. Check all the parts to sec whether they are tightened. Tighten the loosed screw. Check whether the safty guard is reliable and whether there is any interference in-each part

c. The circuit, motor must be wired in accordance with the stipulated method and the

grounding must be connected securely. d The machine must be lubricated in accordance with the lubrication schematic diagram.

e. During the running-in test, if any abnormal ·noise is heard, it should be ·stopped at once.at

once to check the reason and repair it.

(3) Pobatl for attention in uaing the machine L Check whether the turning direction of inertia wheel is correct after starting the michine

The machine is not permitted to use when the turning direction is wrong.

b. If the material is sheared in batches. continuous shearing is pioosbile with a ston block for positioning.

c. ( I ) The angle, round and square steel arc sheared between the movable and fixed shears.

( ii ) The-plate steel, flat steel and rowid steel with a diameter of less than 11mm are shemd

between upper and lower shears. ( Ill ) The profiled angle (see the attached diagram) is sheared by the punch of profiled angle

· lad 1bo buc &bear. Holes can be punched between the punch pin and the die. . .

· ( Iv ) The ctiflaeut 5hears and punch pins can Jl()t used interchangeably or simultaneously.

s

Attached Diagram of the Shearing of the Profiled Angle

(II U)

J:k2 I 2 ii � /_

471 First shearing 1

Second shearing Completed by one shearing

Specification L.70x70x6

L.70x7Qx6 Note: If it is necessary to shear the profiled

angle into the shape shown in Figure (2), if is

necessary to shear it into the shape shown Pigure

(1).

d. When the angle is sheared between the movable and fixed shears, the horseshoe shape in the

notch of the angle can be avoided by adjusting the height if supporting plate.

e. When the material is sheared by upper and lower shears, material should be made level by

supporting screw before it is sheared or else the shears would soon be broken.

�-

6

f. The clearance of the she.a rs and punch pins (a) The clearance be1ween the two ends should be adjusted 10 become even afier being worn or

repaired. The adjusted clearance should be 3% of the thickness of the sheared plate.

��eshear

Upper�

(b) When the punch pins and base shears of the profiled angle are used, the cleamnce should be adjusted to 1/12 of the thickness angle to be sheared

Punch pins of the pro�! -

Base shear of the profjled_;

hear jo j bi

�, o ol 1

( c) The die can not be used until it is adjusted to a homocentric. position with the punch pin by the screw.

(d) When long hole is punched, the round bole punch pin and the base die should be removed and the base die plate will be re-fixed after ii is turned by 180° . The punching can be done when the cleancance of the surrounding ends of the punch pin and die is adjusted to become even. (If the material plate is thicker then 6mm, the front base shear of the profiled angle must be removed.)

. (Attached Diagram)

T-un.:hl r,g ilounJ liol � l"un.;h !n.5

I :.>110 il:.>l,

//

--;;:--

6. Electric circuit diagram

When the machine is used, safety operation rules should be strictly observed.

SteeJ switch

Electric Circuit Diagram

:-1- j- t ··1 r I I I

L

r---·

I

� m�--3-:� I.

I

lsc I

L _.

(a) QCIOL-'l/6 Magnetic Actuator (Coil Voltage: 308V)

(b) Moior: 2.2kw (380V)

·I

Steel casa

S\vitcl'l

7. Wearing Parts List (attached the figure of con�ponent)

�o Name Quantity I

1 flange sleeve of eccentric axis 1

2 base shear of the profiled angle I 2

I

I I

3 punch p;n of the profiled angle 1

I 4 connection-rod sleeve 1 l I

5 '

J1ange sleeve of eccentric axis I

1 j

i

! I

I

I I I 6 trough die 1 ! '

i

7 i

punch pin i I i

8 hole die I

9 hole punch pin I I

10 Extension spring 1

I 11 Slid sleeve I

12 Rectangle turning key I

13 Upper shear I

I 14 lower shear 1

15 lvfovable shear 1

16 Fixed shear 1

17 Roller bearing (7 309) 2

18 I Roller bearing (7508) 2 '

9

QB-8 MULTIFUNCTION SHEARS-·_

CERTIFICATE

OF

CONFORMITY

'!lie macli is quaCijietf to feave factory witli its precision verifietl.

No. do=> 7,<XJ �

Inspector: ,____

Date: CHECKER . N0.1

10

No.

1

2

3

4

5

6

Item for Inspection

The parallelism of the centerline of the punch pin rod on the slide

carriage

The clearance between the upper and lower shears in the punch pin of the profiled steel

The parallelism of the vertical support swface keeping close to the upper shear blade to the stroke of the upper shear carriage

The parallelism of the vertical suppon surface keeping close to the JOwer shear bl.ade to the stoke of upper shear carriage.

The clearance between the upper and lower shear blades which shear the plate material.

The radial Jump and end face circie jwnp of the

flying wheel.

Sketch

-�

P. ] I

�r-:::...

11

Allowed

Torlerance(mm)

Acuta

Test(mm)

O. J 5(direction only ,o. r.J the lower end of the test rod inclines to the shear ·support) 0./ 5(y direction)

0.50.0.75

--

O. J (When the upper '° /

shear carriage moves down wards, the distancebetwean the two vertical surfaces keeping close to the upper and lower shear blades is only allowed to increase) O. JO(When the upper shear carriage moves downwards, the distance between the two vertical surfaces keeping close to the upper and lower shear blades is only allowed toincreas�}

0.06-0.26

O.J (Radial Jump) 0.2 (Endfacejump)

'°· I �.i

Item for Inspection Allowed Actual

No. Sketch Tolerance(mm) Test(mm)

7 Quality of punched hole Larger rips & bun·s

and sheared plate are not allowed.

+1.5 tr. J

-2.5 -d.J

I (J'he tested angle

8 Deformation of angle

D_. length side length, the

steel. test position should

be 5mm away from

the shearing end C'G

I face)

The quantity of the side �

�

length of square

stee/.(a.,a,J 2.4 d.t;-9

�

The variation quantity of 3.4 �-�

the diagonal line of the

square steel. (b-b 1)

I

I a I

The ovality of the round .---..... /

10 �� 4.5 'l·J steel. (d'-d")- "1 -����

��� ..... __

12

QB-8 MULTIFUNCTION SHEARS

1. Type: QB-8

2. Size of the crate: 11 00x700x 1320(LxWxH)

· 3. Net weight: 520kg Gross weight: 570kg

4. Packing list (see table)

i No. Name Specification Quantity Remark

QB-8 multifunction shears 1

Technical document

1 Instruction manual 1

2 Certificate 1

3 Paclcing list 1

Parts with machine

1 Ground bolt MJ6x2J0 4

2 Round hole punch pin QB-8No. 1

3 Round hole die QB-8No. 1

4 Stud bolt M20x280 I

5 Stopping block QB-8 1

6 Nut M20 2

7 Punch die base QB-8No. 1

Tool with.the machine

1 Closed double wrench Opening S2 7 xJ0 1

2 Adjustable wrench Max. opening 19 1 .,

3 Inner hexagonal wrench (I) S8 1 GB70-76 '

Inner hexagonal (2) SI0 1 GB70-76

4 Closed single head wrench Opening JO 1

5 ".- " shape screw driver Lxd75x5 I YM-1 /GB U31-78

6 Hand oil gun Type A nozzle J GB JJ65-79

No.: Inspector: Date:

13