CN2193216Y - Metal band saw machine - Google Patents
Metal band saw machine Download PDFInfo
- Publication number
- CN2193216Y CN2193216Y CN 93226095 CN93226095U CN2193216Y CN 2193216 Y CN2193216 Y CN 2193216Y CN 93226095 CN93226095 CN 93226095 CN 93226095 U CN93226095 U CN 93226095U CN 2193216 Y CN2193216 Y CN 2193216Y
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- CN
- China
- Prior art keywords
- band
- relay
- bands
- motor
- lathe bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a metal band saw machine which comprises a machine body, a saw frame arranged on the machine body, a hydraulic device, a feeding oil cylinder, a band saw blade and a driving system. The utility model is characterized in that the driving system is a separated type stepless driving system with the structure that a rotary center of the saw frame is concentric with a main shaft of a belt wheel, and an automatic chip removal device and an automatic protection device for the band saw blade are arranged. The separated type driving system can cause the saw frame to have the advantages of relieved load, difficult deformation, stable driving and good manufacturability. The automatic chip removal device can automatically remove saw dust chips, which can save both time and labor. The automatic protection device for the band saw blade can avoid the conditions of overload of the band saw machine, and gear broaching and breaking of the band saw blade, and can effectively protect the band saw blade for normal use.
Description
The utility model is a kind of Metal Cutting Machine Tool, specially refers to a kind of band saw machine.
In the prior art, band saw machine is generally by lathe bed and establish thereon saw frame, motor, gear-box (or pot roller box), belt wheel, hydraulic means, feed cylinder assembly and form.Generally there is following shortcoming in they: (1) directly is connected with belt shaft owing to motor, the gear-box (or pot roller box) of its transmission system are all installed the end at saw frame concentratedly, and this centralized transmission system makes the saw frame load big, yielding.Therefore, poor rigidity, the transmission instability, manufacturability is poor; (2) therefore chip removal automatically, makes a large amount of smear metals pile up easily, influence operation, and it is both dirty time-consuming to remove these smear metals; (3) sawing feed speed is to regulate by rule of thumb all, when the sawing feed speed is cut clearance greater than actual metal, can cause sawing force to increase, at this moment, light then passivation that can the accelerated band saw blade, heavy then draw tooth, vexed car, even make the bands for band fracture cause accidental damage, influence the service life of bands for band.
The purpose of this utility model just is to overcome the shortcoming of prior art, and a kind of saw frame load that alleviates is provided, and transmission is stablized, also can get rid of sawdust automatically and guaranteed the bands for band band saw machine in normal service life.
The purpose of this utility model is achieved in that it comprises lathe bed and is located at saw frame, hydraulic means, feed cylinder, bands for band and transmission system on the lathe bed, is characterized in that:
(1) transmission system is the separate type stepless transmission agent of a kind of saw frame centre of gyration and belt wheel main shaft concentric structure, motor in the system and buncher all are located in the lathe bed and separate with saw frame, buncher links to each other with power shaft by belt pulley and belt, power shaft links to each other with main shaft one end by decelerator, the other end of main shaft links to each other with belt wheel and constitutes driving wheel, flange shaft fits together by bearing and the bearing that is located on the lathe bed respectively with main shaft is concentric, and an end and the saw frame of flange shaft are connected as a single entity.
(2) also be provided with automatic chip area device on the lathe bed, it comprises motor, reduction box, sprocket wheel, chain, conveying screw rod and chip area, and conveying screw rod is located in the chip area, and motor drives the screw rod rotation through decelerator by sprocket wheel and chain.
(3) lathe bed is provided with the bands for band automatic safety device; it is made of current transformer, electronic overcurrent relay, the electric motor starting time relay, the motor overload time relay, light emitting diode and buzzer etc.; current transformer detects the electric current of main motor; its output links to each other with the electronic overcurrent relay; the electronic overcurrent relay again respectively with the electric motor starting time relay, the motor overload time relay, light emitting diode and buzzer link to each other.
Because transmission system of the present utility model is a kind of separate type stepless transmission agent, its motor and buncher are installed in the lathe bed, rather than install concentratedly at saw frame one end, alleviated the load of saw frame, can not make the saw frame distortion, transmission is stable, and the rigidity, the processing performance that improve saw frame are good; Set automatic filings discharging device can constantly be removed smear metal, and is not only laborsaving but also save time; Set bands for band automatic safety device can be regulated according to the loaded-up condition that bands for band bore, and can be downloaded on the lenient side to make linear regulation in the full-load range, guarantees that effectively bands for band normally uses, and makes it be difficult for being damaged.
Below in conjunction with accompanying drawing, further set forth concrete enforcement of the present utility model.
Fig. 1 is a kind of contour structures schematic diagram of the present utility model
Fig. 2 is the A-A profile of Fig. 1, and it illustrates the cross-sectional view of the separate type stepless transmission agent that a kind of saw frame centre of gyration of the present utility model and main shaft are concentric.
Fig. 3 is the cross-sectional view of automatic filings discharging device of the present utility model.
Fig. 4 is a kind of circuit block diagram of bands for band automatic safety device of the present utility model.
Fig. 5 is a kind of electrical block diagram of bands for band automatic safety device of the present utility model.
See also Fig. 1, it comprises lathe bed (13) and is located at saw frame (7) on the lathe bed (13), driven pulley (2) and driving wheel (12) is arranged, bands for band (10) in the saw frame (7); Be provided with guider (6) at the two ends of bands for band (10), its place ahead is provided with workpiece front rack (9), and the tensioning degree of bands for band (10) is regulated by band saw blade tensioner (1); Also be provided with electric control box (3) on the lathe bed (13), feed cylinder (11), clamping device (8); Saw frame (7) is realized the sawing feeding by feed cylinder (11), clamp and the sawing feeding the interior hydraulic means (4) of lathe bed (13) realizes by being installed in; Also be provided with buncher (5) and motor (16) in the lathe bed (13); The a large amount of smear metals that are deposited on the lathe bed (13) are discharged in the top swarf box of tank for coolant (15) by the automatic filings discharging device (14) that is installed on the lathe bed.Feature structure of the present utility model is:
(1) transmission system is the separate type stepless transmission agent of a kind of saw frame centre of gyration and main shaft concentric structure, see also Fig. 2, motor in the system (16) and buncher (5) are installed in the lathe bed and separate with saw frame (7), buncher (5) is by belt pulley (17) (19), belt (18) links to each other with power shaft (20), power shaft (20) links to each other with main shaft (22) one ends by decelerator (21), the other end of main shaft (22) links to each other with belt wheel (27) and constitutes driving wheel (12), flange shaft (24) is concentric also respectively by bearing (23) with main shaft (22), (25) be set in main shaft (22) and being located between the bearing (26) on the lathe bed, an end of flange shaft (24) and saw frame (7) are connected as a single entity.The rotating speed of motor (16) is after buncher (5) speed change, and by belt pulley (17), (19), belt (18), power shaft (20) send decelerator (21) to, makes main shaft (22), belt wheel (27) rotation; Because of flange shaft (24) links to each other with bearing (26) with main shaft (22) by bearing (23), (25) respectively, and link together with saw frame (7), therefore, the off-load by bearing (23), (25) of the weight of saw frame (7) is rotated with main shaft (22) concentric so saw frame (7) can be very brisk.This separate type stepless transmission agent alleviates the saw frame load, and not yielding, transmission is stable, good manufacturability.
(2) be located at automatic filings discharging device (4) on the lathe bed (13), see also Fig. 3, it comprises motor (28) and the reduction box (29) that links to each other with motor (28), reduction box (29) links to each other by sprocket wheel (30) (32), chain (31) and bearing (33) screw rod (34) interior with being located at chip removal (35), the rotating speed of motor (28) drives screw rod (34) rotation through slowing down by sprocket wheel (30) (32) chain (31), and smear metal falls into the screw rod (34) that is rotated behind the chip area (35) and constantly is discharged in the swarf box.
(3) be located in the electric control box (3) on the lathe bed (13) and be provided with the bands for band automatic safety device; its circuit block diagram sees also Fig. 4; it comprises current transformer (36); the electric motor starting time relay (37), electronic overcurrent relay (38), overcurrent set point adjustment knob (39), light emitting diode (40), buzzer (41), the motor overload time relay (42).Current transformer (36) detects the electric current of main motor (16), its output links to each other with electronic overcurrent relay (38), and the setting value of electronic overcurrent relay (38) is made linear regulation in initial value by set point adjustment knob (39) to the motor rated current; And electronic overcurrent relay (38), the electric motor starting time relay (37) and the motor overload time relay (42) can be an incorporate electronic product, and by light emitting diode (40), buzzer (41) sound and light alarm.
Fig. 5 is a kind of electrical block diagram of bands for band automatic safety device, wherein:
(1) rectification circuit U, C
1And integrated component 7812 constitutes the power supply road.
(2) transformer TA and testing circuit R thereof
1, R
2, R
3And V
1Constitute current transformer, its detection signal is given the electronic overcurrent relay.
(3) amplifying circuit N
1, constant-current circuit N
2, upper and lower limit bit comparison circuit N
3, N
4And control circuit V
5, executive circuit V
6Constitute electronic overcurrent relay (38).Amplifying circuit N
1By transport and placing device N
1And the resistance R that connects
4, R
5Constitute its input termination current transformer, output termination constant-current circuit N
2Constant-current circuit N
2By transport and placing device N
2And the resistance R that connects
6, R
7Constitute, its output connects lower limit comparison circuit N
3, N
4The upper limit circuit is by transport and placing device N
3And the resistance R that connects
10, R
11, potentiometer RP
2Constitute, the lower limit circuit is by transport and placing device N
4And the resistance R that connects
8, R
9, R
12, potentiometer RP
1Constitute, the bound place value of comparator is by potentiometer RP
2, RP
1Regulate the N of comparator
3, N
4Output connection control circuit V
5, control circuit is by triode V
5And the resistance R that connects
13, R
14, R
15Constitute its output termination executive circuit V
6, executive circuit is by triode V
6And the resistance R that connects
16, R
17, diode V
2, V
3And relay K constitutes.
(4) resistance R 18, capacitor C 3, diode V3 and relay K constitute the electric motor starting time relay (37), and its time constant is by R
18, C
3Adjust and set.
(5) potentiometer RP
3, capacitor C
2, diode V
2, V
3, triode V
6And R
16, R
17, relay K constitutes the motor overload time relay (42), its time constant is by RP
3And C
2Regulate.
Electronic overcurrent relay (38), the electric motor starting time relay (37), motor overload time electrical equipment (42) three are an integrated electric product.
(6) light emitting diode HA and buzzer TY constitute sound light alarming circuit, and they are controlled by relay K.
Concrete annexation between each element is drawn among Fig. 5, is not unfeasible to those skilled in the art, does not therefore give unnecessary details one by one.
Simply introduce bands for band automatic safety device operation principle below:
Set overcurrent (cutting force) value according to the new and old and sharpness of bands for band and by the sawing material, the electric current of motor is detected by current transformer.During main electric motor starting; by the electric motor starting time relay short circuit of electronic overcurrent relay can normally be started to guarantee main motor; behind the main electric motor starting; the electric current of motor changes with the size of cutting force; within electric current is setting value; the electronic overcurrent relay is failure to actuate; have only when electric current more than or equal to when setting value; the electronic overcurrent relay is action just, and this moment, light emitting diode was just glittering, buzzer call; and saw frame is risen rapidly; because the linearity of electronic overcurrent relay is good, the initial current value is little, so when light condition; bands for band is as long as run into just work gently; will make the protective device action, under full load condition, can prevent effectively that also band sawing machine from car taking place to dodge; bands for band draws tooth; fracture.After bands for band is with rust of a specified duration, still remain unchanged as the sawing feed speed, cutting force is increased, when cutting force reached setting value, protective device is action just.Cause that cutting force increases when the feed speed of sawing is transshipped, when reaching setting value, protective device also moves.Therefore, the bands for band automatic safety device effectively the boundary belt sawing machine normally use.
Claims (5)
1, a kind of band saw machine comprises lathe bed and is located at saw frame, hydraulic means on the lathe bed, and feed cylinder, bands for band and transmission system is characterized in that:
(1) transmission system is the separate type stepless transmission agent of a kind of saw frame centre of gyration and belt wheel main shaft concentric structure, motor in the system and buncher all are located in the lathe bed and separate with saw frame, buncher links to each other with power shaft by belt pulley and belt, power shaft links to each other with main shaft one end by decelerator, the other end of main shaft links to each other with belt wheel and constitutes driving wheel, flange shaft and main shaft be concentric to be located at main shaft by bearing holder (housing, cover) respectively and to be located between the bearing on the lathe bed, and an end and the saw frame of flange shaft are connected as a single entity.
(2) also be provided with automatic filings discharging device on the lathe bed, it comprises that motor, reduction box, sprocket wheel, chain, conveying screw rod and chip area conveying screw rod are located in the chip area, and motor drives the screw rod rotation through decelerator by sprocket wheel and chain;
(3) lathe bed is provided with the bands for band automatic safety device; it is by current transformer; electronic overcurrent relay, the electric motor starting time relay, the motor overload time relay, light emitting diode and buzzer constitute; current transformer detects the electric current of main motor; its output links to each other with the electronic overcurrent relay; the electronic overcurrent relay again respectively with the electric motor starting time relay, the motor overload time relay, light emitting diode and buzzer link to each other.
2, band sawing machine as claimed in claim 1 is characterized in that: the electronic overcurrent relay in the bands for band automatic safety device is by the amplifying circuit N that contacts and connect successively
1, constant-current source circuit N
2, bound bit comparison circuit N
3, N
4And control circuit V
5, executive circuit V
6Constitute.
3, band sawing machine as claimed in claim 1 is characterized in that: the electric motor starting time relay of bands for band automatic safety device, and by R
18, capacitor C
3, diode V
3And the relay K formation, its time constant is by R
18, C
3Adjust and set.
4, band sawing machine as claimed in claim 1 is characterized in that: the motor overload time relay of bands for band automatic safety device is by potentiometer RP
3, capacitor C
2, diode V
2, V
3, triode V
6And R
16, R
17, relay K constitutes, and its time constant is by RP
3And C
2Regulate.
5, band sawing machine as claimed in claim 1 is characterized in that: the electronic overcurrent relay of bands for band automatic safety device, the electric motor starting time relay, motor overload time relay three can be an incorporate electronic product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226095 CN2193216Y (en) | 1993-07-30 | 1993-07-30 | Metal band saw machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226095 CN2193216Y (en) | 1993-07-30 | 1993-07-30 | Metal band saw machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2193216Y true CN2193216Y (en) | 1995-03-29 |
Family
ID=33803765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93226095 Expired - Fee Related CN2193216Y (en) | 1993-07-30 | 1993-07-30 | Metal band saw machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2193216Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357675A (en) * | 2011-09-22 | 2012-02-22 | 昆山市众捷塑料机械有限公司 | Band saw cutting machine |
| CN103418838A (en) * | 2012-05-22 | 2013-12-04 | 合济工业股份有限公司 | Horizontal band sawing machine with two-dimensional movable saw bench |
| CN103962640A (en) * | 2013-01-28 | 2014-08-06 | 仕兴机械工业股份有限公司 | Safety protection mechanism for band-sawing machine |
-
1993
- 1993-07-30 CN CN 93226095 patent/CN2193216Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357675A (en) * | 2011-09-22 | 2012-02-22 | 昆山市众捷塑料机械有限公司 | Band saw cutting machine |
| CN103418838A (en) * | 2012-05-22 | 2013-12-04 | 合济工业股份有限公司 | Horizontal band sawing machine with two-dimensional movable saw bench |
| CN103418838B (en) * | 2012-05-22 | 2016-06-15 | 合济工业股份有限公司 | The horizontal band sawing machine of tool two-dimensional movement buck |
| CN103962640A (en) * | 2013-01-28 | 2014-08-06 | 仕兴机械工业股份有限公司 | Safety protection mechanism for band-sawing machine |
| CN103962640B (en) * | 2013-01-28 | 2017-05-03 | 仕兴机械工业股份有限公司 | Safety protection mechanism for band-sawing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |