CN101339071B - Weighing body for double row hopper - Google Patents
Weighing body for double row hopper Download PDFInfo
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- CN101339071B CN101339071B CN2007100247841A CN200710024784A CN101339071B CN 101339071 B CN101339071 B CN 101339071B CN 2007100247841 A CN2007100247841 A CN 2007100247841A CN 200710024784 A CN200710024784 A CN 200710024784A CN 101339071 B CN101339071 B CN 101339071B
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Abstract
The invention discloses a weighing device which is used in a double-row hopper and which comprises a driving system and a weighing system. The driving system consists of an upper hopper driving mechanism, a lower hopper driving mechanism, an upper hopper driving cam and a lower hopper driving cam; the upper hopper driving cam and the lower hopper driving cam are arranged on a same shaft; the upper hopper driving cam and the lower hopper driving cam, which are driven by a same motor, are respectively used for driving the upper hopper driving mechanism and the lower hopper driving mechanism. The weighing system comprises a weighing sensor; one end of the sensor is fixed on the base of the weighing device through the mounting base of the sensor, and the other end is connected with a load-bearing component. The weighing device integrates the driving system with the weighing system and overcomes the difficulty of complex structural and driving control in the weighing device which is respectively driven by two hoppers. The combination of the driving system and the weighing system of the weighing hopper overcomes the defects of time consumption and poor accuracy when the weighing system is stabilized, and achieves the technical effects of simplifying the structure, reducing the space for installation, simplifying the control, decreasing the tare, and improving the weighing accuracy.
Description
Technical field
The present invention relates to a kind of weighing scale device, especially be particularly related to a kind of Weighing body that is used for double row hopper.
Background technology
Combination balance is used widely in automatic packaging system.The common double bucket combination balance that adopts, two row's buckets are pressed upper-lower position and are installed, and it is aggregate bin that last row struggles against, and following row's bucket is a weighing bucket.Material in weighing bucket, by its weight of weighing system weighing, operation such as packs through aggregate bin again.The switch of aggregate bin and weighing bucket sluice gate is by driving mechanisms control and finish.
In the weighing system, weighing sensor mainly adopts resistance strain weighing transducer, and sensor one end is fixed during installation, an end activity, movable end installation load.The working sensor principle is: elastic body (flexible member, sensitive beam) produces elastic deformation under external force, make and stick on its lip-deep resistance strain gage (conversion element) also in company with producing distortion, after the resistance strain gage distortion, its resistance will change (increase or reduce), through corresponding metering circuit this resistance variations is converted to electric signal (voltage or electric current) again, thereby has finished the process that external force is transformed to electric signal.
At present, in the double bucket combination balance, drive system adopts two drive motor to realize driving, structure and the drive controlling complexity of aggregate bin and weighing bucket respectively.And weighing system and weighing bucket drive system are separate design, and promptly the weighing bucket drive system is not mounted on the weighing system.This design generally can only be used for the spring bucket, has spring on the weighing bucket, and the return of sluice gate is to finish by weighing bucket self, and the weighing bucket drive system can be independent of the weighing system design in the case.Under application scenarios such as packaged food or medicine, the external springs on the hopper is brought the pollution of packing materials easily, and even more serious is, spring easy fracture or come off if its fragment has been sneaked in the packing materials, may cause the consequence that is difficult to expect.Therefore in these application scenarios, if the no spring hopper of a large amount of uses is weighing system and weighing bucket drive system separate design, the weighing bucket action of closing the door under drive systems can give to weigh to cause have a strong impact on, and Weighing system is stablized length consuming time, efficient is low, low precision.
The invention provides a kind of with the unite two into one Weighing body that is used for double row hopper of global design of drive system and weighing system.
Summary of the invention
According to the Weighing body that is used for double row hopper of the present invention, drive system and weighing system united two into one carry out global design, twin-bucket be can overcome and the structure that produced and the difficulty of drive controlling complexity driven respectively; And the drive system and the weighing system of weighing bucket combined, can overcome the defective that weighing system is stablized length consuming time, low precision, reach simplified structure, dwindle installing space, simplify control, reduce tare weight, improve the technique effect of weighing precision.
The technical solution adopted in the present invention is as follows:
A kind of Weighing body that is used for double row hopper comprises drive system and weighing system, it is characterized in that:
Described drive system by last bucket driving mechanism, down struggle against on driving mechanism and the same axle go up bucket driving cam 14 and down bucket driving cam 16 form;
In last bucket driving mechanism, first rolling bearing 13, guiding mechanism 10 and roller 9 are welded into a whole, and the guide pole of guiding mechanism 10 is installed in the sliding seat 8; Guiding mechanism 10 is provided with spring 11, and spring 11 other ends connect spring base 12; Roller 9 is stuck in the inner shift fork 7, and same axle is provided with outside shift fork 5; Sliding seat 8 and spring base 12 are installed on the Weighing body seat 32; First rolling bearing 13 contacts with last bucket driving cam 14;
Under struggle against in the driving mechanism, fixed guide pole 20 and orienting sleeve 17 on the holder 24 move seat 21 and are installed on the guide pole 20 and can move along guide pole 20; Second rolling bearing 19 is fixed on and moves on the seat 21, move seat 21 and be provided with fixed bar 22, oscillating bearing 23 be installed on the fixed bar 22 after guide rod 18 is connected, guide rod 18 can move up and down in orienting sleeve 17; Compression spring 25 is connected and moves between seat 21 and the holder 24; Second rolling bearing 19 and the driving cam 16 that struggles against down contact;
Described weighing system comprises LOAD CELLS 26 and sensor mount pad 27, and sensor mount pad 27 is fixed on the Weighing body seat 32, and LOAD CELLS 26 1 ends are fixed on the sensor mount pad 27, and the other end is connected with holder 24.
According to Weighing body of the present invention, when the motor-driven cam, the bucket driving cam of going up on the same axle drives upper and lower bucket driving mechanism respectively with following bucket driving cam, when the last bucket driving cam and the driving cam that struggles against are down installed, according to requirement certain angle that staggers of control, thereby realize the purpose of two hopper sluice gates of a driving device controls.
Drive system of the present invention, its principle of work is described below:
For last bucket (aggregate bin), when motor-driven cam 14, along with the rotation of cam 14, cam 14 drives first rolling bearing 13 and moves up.First rolling bearing 13 moves up, and under the guiding of guiding mechanism 10, roller 9 is done motion vertically upward.Because roller 9 is stuck in the inner shift fork 7, roller 9 athletic meeting drive inner shift fork 7 and do the spinning motion, inner shift fork 7 and then drive outside shift fork 5 and rotate.Outside shift fork 5 promotes the hoppers gear train that opens the door, and the hopper sluice gate is opened, and finishes the action of opening the door.In the process of opening the door, cam 14 drives first rolling bearing 13 and moves up, and guiding mechanism 10 is moved up synchronously, and the spring 11 between guiding mechanism 10 and the spring base 12 is in extended state.Along with the rotation of cam 14, cam 14 is made returning movement.When cam 14 was made returning movement, under the elastic force effect of spring 11, first rolling bearing 13 and guiding mechanism 10 moved downward, pulling roller 9 moves down, and then inner shift fork 7 rotates, and drives outside shift fork 5 and rotates, make the hopper door return, finish the action of closing the door.
For struggle against down (weighing bucket), when motor-driven cam 16, rotation along with cam 16, cam 16 drives second rolling bearing 19 and moves down, second rolling bearing 19 is fixed together with mobile seat 21, move seat 21 thus and move along guide pole 20 and move down, therefore the fixed bar 22 that moves on the seat 21 moves downward.Fixed bar 22 moves downward oscillating bearing 23 and guide rod 18 motions that promote to be installed on the fixed bar 22, and guide rod 18 moves down in orienting sleeve 17, and guide rod 18 moves down, and the gear train action of opening the door of pulling weighing bucket reaches the purpose of opening the door.In the process of opening the door, move seat 21 and move down the compression spring 25 that can compress between mobile seat 21 and the holder 24, open until the door of hopper.Compression spring 25 is stressed therebetween, and stressed size and mobile seat 21 move down distance and be directly proportional.When closing the door when action, the elastic force of compression spring 25 after by compression orders about and moves seat 21 and move upward, and moves seat 21 pulling guide rods 18 and moves upward, thereby reach the purpose of closing the door.
For reducing the friction between the drive unit parts, can further optimize the present invention.For last bucket driving mechanism, the friction between the guide pole that reduces sliding seat 8 and guiding mechanism 10 is equipped with sliding bearing 15 between the guide pole of sliding seat 8 and guiding mechanism 10, can guarantee the level and smooth mobile of guiding mechanism 10.Equally, for reducing the friction force between outside shift fork 5 and the Weighing body seat 32, externally mounting flange bearing 6 in shift fork 5 rotating shafts is installed in flange bearing 6 on the Weighing body again.
For under the driving mechanism that struggles against, for reducing the friction force that guide rod 18 moves up and down, can in orienting sleeve 17, sliding bearing be installed; Simultaneously, move the friction force that seat 21 moves in guide pole 20, between mobile seat 21 and guide pole 20, sliding bearing is installed for reducing.For guaranteeing that moving 21 of seats moves up and down, and move seat 21 stability that move, can design two parallel guide poles 20, make and move seat 21 and move up and down along two parallel guide poles 20; Correspondingly, two compression springs 25 are installed in symmetrically and move between seat 21 and the holder 24.
According to Weighing body of the present invention, an end of LOAD CELLS 26 is fixed on the Weighing body seat 32 by sensor mount pad 27, and the other end is connected with load bearing component.Load bearing component comprises that bucket (weighing bucket) driving mechanism, following bucket suspender reach bucket (weighing bucket) down down, the bearing end of LOAD CELLS 26 is connected with holder 24, drive stretching out of power and a little be the driving cam 16 that struggles against down, when weighing and weighing system be separated, realize that the weighing bucket drive system and the one of weighing system design.The mode of fixing at two end face with sensor in the prior art is different, the stiff end of sensor of the present invention and bearing end are separately fixed at the upper and lower side of sensor, shortened the distance between sensor and the weighing bucket, rocking of weighing bucket understood corresponding reducing like this, is beneficial to and weighs.
For preventing that LOAD CELLS 26 from damaging because of overload, can design overload protection device in the present invention, LOAD CELLS 26 is effectively protected.Be provided with an overload protection bolt 30 in the bearing end of LOAD CELLS 26; according to the elastically-deformable limit of elastic body in the LOAD CELLS 26; on Weighing body seat 32, be provided with spacing up and down; and limiting overload protection bolt 30 can only move between spacing up and down, can realize the purpose to LOAD CELLS 26 overload protections.
Weighing body of the present invention, drive system and weighing system united two into one carry out global design, and realize the switch door of a double bucket of motor-driven, weighing bucket and the aggregate bin curve that opens the door can be realized respectively optimizing by the curve of power transition mechanism (cam), the energy simplified structure, dwindle installing space, simplify control.The installation method of sensor can shorten the stabilization time of weighing bucket simultaneously, shortens the sensor cantilever, reduces tare weight, improves weighing precision.Therefore, Weighing body of the present invention, stable action is reliable, the good efficient height of weighing precision, and save cost.
Below in conjunction with accompanying drawing, describe the present invention.
Description of drawings
The synoptic diagram of Fig. 1 Weighing body of the present invention
Fig. 2 Weighing body stereographic map of the present invention (1)
Fig. 3 Weighing body structural representation of the present invention
Fig. 4 Weighing body stereographic map of the present invention (2)
Fig. 5 overload protection device structural representation
Embodiment
As shown in Figure 1, the Weighing body 3 that is used for double bucket of the present invention can carry out the switch gate control to aggregate bin 1 and weighing bucket 2, and the weight of material in the weighing bucket is carried out weighing.
A kind of Weighing body that is used for double row hopper comprises drive system and weighing system.
Drive system by last bucket driving mechanism, down struggle against on driving mechanism and the same axle go up bucket driving cam 14 and down bucket driving cam 16 form.
As Fig. 2, shown in Figure 3, on struggle against driving mechanism by comprising outside shift fork 5, flange bearing 6, inner shift fork 7, sliding seat 8, roller 9, guiding mechanism 10, extension spring 11, spring base 12, first rolling bearing 13 and sliding bearing 15.First rolling bearing 13, guiding mechanism 10 and roller 9 are welded into a whole, guiding mechanism 10 has two cylindrical guide poles, connect with rectangular slab, be a font, the guide pole of guiding mechanism 10 is installed in the sliding seat 8, sliding bearing 15 is installed between the guide pole of sliding seat 8 and guiding mechanism 10,, guarantees the level and smooth mobile of guiding mechanism 10 to reduce friction factor.Roller 9 is stuck in the inner shift fork 7, adopts the mode of bolted to fix between inner shift fork 7 and the outside shift fork 5, for reducing the friction force between outside shift fork 5 and the Weighing body seat 32, and mounting flange bearing 6 in shift fork 5 rotating shafts externally.Guiding mechanism 10 is provided with extension spring 11, and extension spring 11 other ends connect spring base 12; Sliding seat 8 and spring base 12 are installed on the Weighing body seat 32.
As shown in Figure 3, Figure 4, following bucket driving mechanism mainly is made up of orienting sleeve 17, guide rod 18, second rolling bearing 19, guide pole 20, mobile seat 21, fixed bar 22, oscillating bearing 23, holder 24 and compression spring 25.Two guide poles 20 and orienting sleeve 17 are fixed on the holder 24, move seat 21 and are installed on the guide pole 20 and can move along guide pole 20, sliding bearing are installed moving between seat 21 and the guide pole 20; Second rolling bearing 19 is fixed on and moves on the seat 21, move seat 21 and be provided with fixed bar 22, oscillating bearing 23 be installed on the fixed bar 22 after guide rod 18 is connected, guide rod 18 is placed in the orienting sleeve 17, guide rod 18 can move up and down in orienting sleeve 17.Compression spring 25 is connected and moves between seat 21 and the holder 24.
Last bucket driving cam 14 contacts with first rolling bearing 13 of last bucket driving mechanism and second rolling bearing 19 of the driving mechanism that struggles against down respectively with the driving cam 16 that struggles against down.
As shown in Figure 3, Figure 4, weighing system comprises LOAD CELLS 26 and sensor mount pad 27, and sensor mount pad 27 is fixed on the Weighing body seat 32, and LOAD CELLS 26 1 ends are fixed on the sensor mount pad 27, and the other end is connected with holder 24.Design has the limit mounting seam on the Weighing body seat 32, can guarantee consistance and reliability that LOAD CELLS 26 is installed.As Fig. 5; overload protection support 29 is arranged on orienting sleeve 17; one rectangular window is arranged on the Weighing body seat 32; overload protection bolt 30 usefulness clamp nuts 28 are installed on the overload protection support 29; and place in the rectangular window, the bottom of going up of rectangular window forms the spacing of overload protection bolt 30, according to the range of LOAD CELLS 26; after regulating overload protection bolt 30 and Weighing body seat 32 positions, overload protection bolt 30 is locked with clamp nut 28.
Weighing body hook 31 is fixed on the orienting sleeve 17, and weighing bucket is installed on the Weighing body hook 31, can realize purpose of the present invention.
When motor-driven cam 14, along with the rotation of cam 14, cam 14 drives first rolling bearing 13 and moves up.First rolling bearing 13 moves up, and under the guiding of guiding mechanism 10, roller 9 is done motion vertically upward.Because roller 9 is stuck in the inner shift fork 7, roller 9 athletic meeting drive inner shift fork 7 and do the spinning motion, inner shift fork 7 and then drive outside shift fork 5 and rotate.Outside shift fork 5 promotes the hoppers gear train 4 that opens the door, and the hopper sluice gate is opened, and finishes the action of opening the door.In the process of opening the door, the spring 11 between guiding mechanism 10 and the spring base 12 is in extended state.Along with the rotation of cam 14, cam 14 is made returning movement.When cam 14 was made returning movement, under the elastic force effect of spring 11, first rolling bearing 13 and guiding mechanism 10 moved downward, pulling roller 9 moves down, and then inner shift fork 7 rotates, and drives outside shift fork 5 and rotates, make the hopper door return, finish the action of closing the door.
The angle that the last bucket driving cam 14 and the driving cam 16 that struggles against down stagger certain according to the requirement of control is installed, when driven by motor cam 16 rotates, when cam 16 touches second rolling bearing 19, cam 16 drives second rolling bearing 19 and moves down, second rolling bearing 19 is fixed together with mobile seat 21, move seat 21 thus and move along guide pole 20 and move down, therefore the fixed bar 22 that moves on the seat 21 moves downward.Fixed bar 22 moves downward oscillating bearing 23 and guide rod 18 motions that promote to be installed on the fixed bar 22, and guide rod 18 moves down in orienting sleeve 17, and guide rod 18 moves down, and the gear train action of opening the door of pulling weighing bucket reaches the purpose of opening the door.In the process of opening the door, move seat 21 and move down the compression spring 25 that can compress between mobile seat 21 and the holder 24, open until the door of hopper.When closing the door when action, the elastic force of compression spring 25 after by compression orders about and moves seat 21 and move upward, and moves seat 21 pulling guide rods 18 and moves upward, thereby reach the purpose of closing the door.
One end of sensor 26 is fixed, and the other end is connected with load bearing component, the variation of its load, and promptly weight of material can be measured.
Claims (6)
1. a Weighing body that is used for double row hopper comprises drive system and weighing system, it is characterized in that:
Described drive system by last bucket driving mechanism, down struggle against on driving mechanism and the same axle go up bucket driving cam (14) and the driving cam (16) that struggles against is down formed;
In last bucket driving mechanism, first rolling bearing (13), guiding mechanism (10) and roller (9) are welded into a whole, and the guide pole of guiding mechanism (10) is installed in the sliding seat (8); Guiding mechanism (10) is provided with spring (11), and spring (11) other end connects spring base (12); Roller (9) is stuck in the inner shift fork (7), and same axle is provided with outside shift fork (5); Sliding seat (8) and spring base (12) are installed on the Weighing body seat (32); First rolling bearing (13) contacts with last bucket driving cam (14);
Under struggle against in the driving mechanism, holder (24) is gone up fixed guide pole (20) and orienting sleeve (17), moves seat (21) and is installed in guide pole (20) and goes up also and can move along guide pole (20); Second rolling bearing (19) is fixed on and moves on the seat (21), move seat (21) and be provided with fixed bar (22), oscillating bearing (23) be installed on the fixed bar (22) after guide rod (18) is connected, guide rod (18) can move up and down in orienting sleeve (17); Compression spring (25) is connected and moves between seat (21) and the holder (24); Second rolling bearing (19) and the driving cam (16) that struggles against down contact;
Described weighing system comprises LOAD CELLS (26) and sensor mount pad (27), sensor mount pad (27) is fixed on the Weighing body seat (32), LOAD CELLS (26) one ends are fixed on the sensor mount pad (27), and the other end is connected with holder (24).
2. the Weighing body that is used for double row hopper according to claim 1, it is characterized in that: in the driving mechanism that on described, struggles against, sliding bearing (15) is installed, externally mounting flange bearing (6) in shift fork (5) rotating shaft between the guide pole of sliding seat (8) and guiding mechanism (10).
3. the Weighing body that is used for double row hopper according to claim 1 is characterized in that: in the described driving mechanism of bucket down, sliding bearing is installed in the orienting sleeve (17), between mobile seat (21) and guide pole (20) sliding bearing is installed.
4. the Weighing body that is used for double row hopper according to claim 1 is characterized in that: in the described driving mechanism of bucket down, two parallel guide poles (20) are arranged, move seat (21) and move up and down along two parallel guide poles (20); Two compression springs (25) are installed in symmetrically and move between seat (21) and the holder (24).
5. the Weighing body that is used for double row hopper according to claim 1; it is characterized in that: be provided with overload protection bolt (30) in the bearing end of LOAD CELLS (26); go up to be provided with spacingly up and down at Weighing body seat (32), overload protection bolt (30) can only move between spacing up and down.
6. the Weighing body that is used for double row hopper according to claim 5; it is characterized in that: overload protection support (29) is arranged on orienting sleeve (17); the Weighing body seat has a rectangular window on (32); described overload protection bolt (30) is installed on the overload protection support (29) with clamp nut (28), and places in the rectangular window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100247841A CN101339071B (en) | 2007-07-03 | 2007-07-03 | Weighing body for double row hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100247841A CN101339071B (en) | 2007-07-03 | 2007-07-03 | Weighing body for double row hopper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101339071A CN101339071A (en) | 2009-01-07 |
| CN101339071B true CN101339071B (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100247841A Expired - Fee Related CN101339071B (en) | 2007-07-03 | 2007-07-03 | Weighing body for double row hopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101339071B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353339B (en) * | 2013-07-01 | 2015-12-09 | 安徽正远包装科技有限公司 | A kind of self-locking scale hooper mechanism |
| CN109405938A (en) * | 2018-12-24 | 2019-03-01 | 哈尔滨联科包装机械有限公司 | Separate type weighing hopper shedding mechanism and discharge method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058748U (en) * | 1989-08-05 | 1990-06-27 | 沈有德 | High-accuracy automatic weigher for bulk material |
| CN2388593Y (en) * | 1999-06-21 | 2000-07-19 | *** | Weighing solid flowmeter |
| DE10107277A1 (en) * | 2000-12-01 | 2002-08-01 | Bayer Ag | Non-dusting rotary batch dryer for fine, sensitive bulk chemical or pharmaceutical powders, is designed with connections for closed operation |
| CN1432797A (en) * | 2001-12-13 | 2003-07-30 | 株式会社石田 | Combined weigher |
-
2007
- 2007-07-03 CN CN2007100247841A patent/CN101339071B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058748U (en) * | 1989-08-05 | 1990-06-27 | 沈有德 | High-accuracy automatic weigher for bulk material |
| CN2388593Y (en) * | 1999-06-21 | 2000-07-19 | *** | Weighing solid flowmeter |
| DE10107277A1 (en) * | 2000-12-01 | 2002-08-01 | Bayer Ag | Non-dusting rotary batch dryer for fine, sensitive bulk chemical or pharmaceutical powders, is designed with connections for closed operation |
| CN1432797A (en) * | 2001-12-13 | 2003-07-30 | 株式会社石田 | Combined weigher |
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| CN101339071A (en) | 2009-01-07 |
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Owner name: DANYANG JINYI COATING EQUIPMENT CO., LTD. Free format text: FORMER OWNER: WUXI ZHUOZHI MACHINE CO., LTD. Effective date: 20090515 |
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Effective date of registration: 20090515 Address after: Jiangsu province Danyang Economic Development Zone Overseas Student Pioneer Park postal code: 212300 Applicant after: Danyang Jinyi Packing Equipment Co., Ltd. Address before: Wuxi City, Jiangsu province Cunxi Mei Xian Lu No. 108 No. 11 post encoding: 214112 Applicant before: Wuxi Zhuozhi Machinery Co., Ltd. |
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Owner name: JIANGSU JOYEA PACKAGING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: DANYANG JINYI PACKING EQUIPMENT CO., LTD. |
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Address after: 212300 Overseas Students Pioneer Park, Danyang Economic Development Zone, Jiangsu Patentee after: Jiangsu Joyea Packing Technology Co., Ltd. Address before: 212300 Overseas Students Pioneer Park, Danyang Economic Development Zone, Jiangsu Patentee before: Danyang Jinyi Packing Equipment Co., Ltd. |
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