CN206847746U - The splicing weighing device realized by rotating shaft drive device - Google Patents

Abstract

A kind of splicing weighing device realized by rotating shaft drive device, it includes weighing bracket and the weighing sensor being fixed on weighing bracket, it is characterized in that weighing sensor bearing end is fixed with connecting bracket, connecting bracket is by sensor connecting plate, rotating shaft drive device connecting plate, connect the side plate composition of sensor connecting plate and rotating shaft drive device connecting plate, sensor connecting plate is rigidly connected with weighing sensor bearing end, rotating shaft drive device is fixedly installed on rotating shaft drive device connecting plate and is used for drive shaft, rotating shaft drive device is fixed on the side of rotating shaft drive device connecting plate, rotating shaft reaches opposite side through rotating shaft drive device connecting plate and is rigidly connected with weighing platform；Be fixedly installed the first limited block and the second limited block on rotating shaft drive device connecting plate, weighing platform pivoted with rotating shaft during between the first limited block and the second limited block reciprocally swinging.

Description

The splicing weighing device realized by rotating shaft drive device

Technical field

The application is related to automatic weighting field, more particularly to gently, the weight detecting scale and weight grading scale of wisp.

Background technology

, it is necessary to carry out coding mark to the weight of article in the productions such as food, medicine, chemical product or packaging process, or press Production standard and metrological legislation checked the weight of article and overweight and ultralight product picked out, the needs also having Range is carried out by the weight of article, such as agricultural aquatic products and livestock product；These processes are required for weight detecting scale and weight It is classified scale.

Rotating shaft rotating mechanism includes various motors and rotary magnet.

Existing weighing technology removes the scheme for being weighed object after weighing and shortcoming have it is as follows：

First, weigh on the belt driven by motor drive mechanism and mobile, belt, motor etc. are all turning while due to weighing It is dynamic, and because motor, belt etc. make the weight of weighing platform very big and body vibration rigidly diminishes, occupies many of weighing sensor Range, it is huge on weighing precision influence, it can not be precisely weighed.

2nd, weigh and move on inclined slide plate；Although weighing precision is very high, thing is weighed due to tilting to change The height of body, the height of production line will finally be returned to by being weighed object, so it is larger to take production line length.

3rd, after being weighed on fixed weighing platform, by with weighing platform without connection air-blowing, beat bar, swing rod, roller etc. Mechanical means, which is removed, is weighed object, is not connected due to removing mechanism with weighing platform, remove be weighed object when, weighing platform will be by Very big on weighing sensor influence to external force, life-span and weighing precision are all impacted；For rapid weighing, biography of weighing will be caused Sensor drift is serious.And if be connected mechanism is removed with weighing platform, its cable, gas circuit etc. will influence weighing precision；It is also serious to increase Add itself inert weight of weighing platform, influence the range of weighing sensor, have a strong impact on weighing precision；Also will when removing mechanism work Severe jamming weighing precision.

Nervous for production space of lines, the occasion that weighing precision will be higher, prior art can not meet to require.

The content of the invention

For deficiency of the prior art, the utility model is mounted directly by using the rotating shaft drive device of lighter in weight On weighing sensor, do not influence the range of weighing sensor and weighing platform vibration it is rigid under the premise of, allow the rushing of moving object Power becomes the internal force of weighing sensor, and weighing precision greatly improved.

Technical solution adopted in the utility model is：A kind of splicing weighing device realized by rotating shaft drive device, It includes control cabinet, weighing bracket, the weighing sensor being fixed on weighing bracket, and weighing sensor bearing end is fixed with connection Support, connecting bracket is by sensor connecting plate, rotating shaft drive device connecting plate, connection sensor connecting plate and rotating shaft drive device The side plate composition of connecting plate, sensor connecting plate is rigidly connected with weighing sensor bearing end, in rotating shaft drive device connecting plate On be fixedly installed rotating shaft drive device and be used for drive shaft, rotating shaft drive device is fixed on the one of rotating shaft drive device connecting plate Side, rotating shaft reach opposite side and weighing platform is rigidly connected；The first limited block is fixedly installed on rotating shaft drive device connecting plate With the second limited block, weighing platform pivoted with rotating shaft during between the first limited block and the second limited block reciprocally swinging, weighing platform Original is rested on weighing platform during in the first limited block position when quicklying go to the second limited block position by the first limited block position The transition apparatus that is weighed object and can freely fall to below weighing platform on.

Rotating shaft drive device includes motor, rotary magnet etc., and rotating shaft can be exactly the output of motor or rotary magnet Axle.

After the weighing, rotating shaft drive device drives weighing platform to rotate, and makes to be weighed object because of gravity fall, then reversely rotation again Turn to reset and receive next object and weigh, realize splicing, weigh and the function such as moving object.

The specific feature of this programme also has, the vertical arrangement of rotating shaft, the smooth plates that weighing platform bottom plate is arranged horizontally, and rotating shaft is led to Strip connecting plate is crossed to be rigidly connected with weighing platform；Weighing platform is projected as approximate rectangular vertical, and weighing platform bottom plate is close to first The side of limited block position is open plane.Because the action impact of rotating shaft drive device is all in the horizontal plane, and to weigh The force sensitive direction of sensor is vertical, so, this programme can more effectively reduce impact, improve weighing precision.

Postive stop baffle is fixed with connecting bracket, the part that postive stop baffle is located above the bottom plate of weighing platform is grown perpendicular to weighing platform The edge thickness for being smaller than being weighed object of the plate upper surface on side, the lower edge of postive stop baffle and weighing platform, the width of weighing platform The width spent and be weighed object is adapted, when the upright position of positive stop should make the object after weighing nestle up positive stop Still freely can unimpededly it land.

Rotating shaft is horizontally disposed, and the shape of weighing platform is adapted with size with being weighed the shape of underbody with size, it is ensured that Weighing platform is weighed object when being in the first limited block position can be stably on weighing platform, and rotating shaft passes through T-shaped contiguous block It is rigidly connected with weighing platform.For this programme because weighing platform center of gravity is close to the rotating shaft of rotating shaft drive device, the rotary inertia of weighing platform is very small, The impact of inertia kick that spinning movement is brought is especially small in the mechanical shock of two limited block opening positions with regard to very little, more because It is very convenient quick smooth to overturn blanking, can vacate the more time weighs, and realizes high-precision weighing.Rotating shaft drive device can be with , can also be installed in the upper surface of weighing sensor bearing end installed in the side of weighing sensor bearing end.

Rotating shaft drive device is rotary magnet.Various motors can also be used.

The material for connecting the side plate of sensor connecting plate and rotating shaft drive device connecting plate is damping damping material.Can have Impact of the internal force to weighing sensor when effect reduces and rapid decay rotating shaft drive device is overturn.

Also include follow-up bearing, be provided with transition apparatus below weighing platform on follow-up bearing, transition apparatus is to incline Oblique smooth slide plate, compared to as transition apparatus, the manufacturing cost of smooth slide plate is extremely low and reliably and with long-term using belt conveyor Property is high.Transition apparatus is exactly the device that the material after weighing is removed, and can directly be exactly the Belt Conveying with go-on-go mechanism Machine.

Sorting unit is connected to after transition apparatus, for sorting and being classified occasion, need to be only followed by more than one or individual sorting unit .

Sorting unit is the smooth turnover panel of turnover panel drive device driving.Compared to pneumatic swing and push rod or air-blowing and turn over The belt conveyor turned, for light, wisp, the smooth turnover panel driven by turnover panel drive device is not only made as rejecting mechanism Cause low, reliability also greatly improves.

Turnover panel drive device is rotary magnet, and cost is low, reliability is high.

The beneficial effect of the application：First, by the way that rotating shaft drive device is arranged on weighing sensor, after weighing again Automatic remove is weighed object, has obtained the high accuracy of static weighing.

2nd, by installing damping shock absorption material between weighing sensor and rotating shaft drive device, rotation is significantly reduced The impact to weighing sensor is acted, also makes its rapid decay of impact, weighing precision is high, response of weighing is fast.

3rd, different from former dynamic weighing mobile object while, to rotary parts such as the roller of belt conveyor, belts It is high-precision, high it is dynamically balanced require higher, the application direct fixation motor or rotary magnet etc. on weighing sensor Rotating shaft drive device carrys out moving object, makes to weigh with carrying out during mobile object difference, the reliability of motor is high, especially rotates It is to be largely used on the textile machine of high speed, high reliability before electromagnet, and cost is low, reliability is high, so, the application Realize the inexpensive, highly reliable of dynamic weigher.

4th, follow-up transition apparatus of weighing uses slide plate, and compared to using belt conveyor, manufacturing cost is extremely low and for a long time may be used It is high by property.

5th, sorting unit is the smooth turnover panel of turnover panel drive device driving.Compared to pneumatic swing and push rod or air-blowing and Overturn to reject the belt conveyor of object, for light, wisp, driven by the turnover panel such as motor or rotary magnet drive device Smooth turnover panel as rejecting mechanism, not only manufacturing cost is low, and reliability also greatly improves.

Brief description of the drawings

Fig. 1 is the schematic elevation view for the splicing weighing device realized by rotating shaft drive device.In figure, 1- weighing brackets, 2- weighing sensors, 3- sensor connecting plates, 4- front side boards, 5- rotating shaft drive device connecting plates, the limited blocks of 71- second, 6- turn Axle, 7- bar shaped contiguous blocks, 8- weighing platforms, the limited blocks of 72- first, 9- postive stop baffles, 10- are weighed object, and 13- has weighed object, 14- turnover panels, turn over limited block on 15-, 16- the first splicing units, 17- turnover panel drive devices, 18- the second splicing units, are turned under 19- Limited block, the follow-up bearings of 20-, 21- transition apparatus, 22- control cabinets.

Fig. 2 is Fig. 1 left view.In figure, 23- back side panels, 24- rotating shaft drive devices.

Fig. 3 is Fig. 1 schematic top plan view.

Fig. 4 is schematic diagram when weighing platform is in the second limited block position in Fig. 3.

Fig. 5 is right view local at postive stop baffle in Fig. 1.

Fig. 6 is that turnover panel is in schematic diagram when above turning over limited block position in Fig. 1.

Fig. 7 is schematic diagram when front side board and back side panel are damping shock absorption material in Fig. 2.

Fig. 8 is the schematic elevation view when rotating shaft of rotating shaft drive device is horizontal positioned.In figure, 27- lower side panels, 30- upsides Plate, 32-T shape contiguous blocks.

Fig. 9 is Fig. 8 T-shaped contiguous block and the vertical view part sectioned view of two positive stops.

The right side that Figure 10 is Fig. 8 regards schematic diagram.

Figure 11 is that the rotating shaft of Figure 10 transfer axial brake devices horizontally rotates the schematic diagram of blowing.

Embodiment

Embodiment one, as shown in figure 1, a kind of splicing weighing device realized by rotating shaft drive device, it includes control Case 22, weighing bracket 1, the weighing sensor 2 being fixed on weighing bracket 1, the bearing end of weighing sensor 2 are fixed with connection branch Frame, connecting bracket are driven by sensor connecting plate 3, rotating shaft drive device connecting plate 5 and connection sensor connecting plate 3 and rotating shaft The front side board 4 and back side panel 23 of device connecting plate 5 form, and sensor connecting plate 3 is rigidly connected with weighing sensor bearing end, It is fixedly installed rotating shaft drive device 24 on rotating shaft drive device connecting plate 5 to rotate for drive shaft 6, rotating shaft drive device 24 It is fixed on the side of rotating shaft drive device connecting plate 5, rotating shaft 6 reaches opposite side through rotating shaft drive device connecting plate 5 and passed through Strip connecting plate 7 is rigidly connected with weighing platform 8；The first limited block 72 and are fixedly installed on rotating shaft drive device connecting plate 5 Two limited blocks 71；Weighing platform 8 with rotating shaft 6 pivot during between the first limited block 72 and the second limited block 71 reciprocally swinging.

6 vertical arrangement of rotating shaft, the smooth plates that the bottom plate of weighing platform 8 is arranged horizontally, rotating shaft 6 by strip connecting plate 7 with Weighing platform 8 is rigidly connected；Weighing platform 8 is projected as approximate rectangular vertical, and long side corresponds to the rotating shaft 6 of rotating shaft drive device 24 Radial direction.The bottom plate of weighing platform 8 is smooth plates.

The lower surface of weighing platform 8 is rigidly connected with bar shaped contiguous block 7, bar shaped contiguous block 7 in the pivoting of weighing platform 8 respectively with First positive stop 72 and the second positive stop 71 contact.

Fig. 3 is schematic diagram when weighing platform is in the first positive stop position, and rotation arrows are signified for rotating shaft driving dress in figure The rotating shaft put is turned to the direction of the second limited block position together with weighing platform by the first limited block position.

Fig. 4 is schematic diagram when weighing platform is in the second positive stop position, as shown in figure 4, weighing platform 8 is by the first limited block 72 When position quicklyes go to the second 71 position of limited block, original, which is rested on the weighing platform 8 during in the first 72 position of limited block, to be claimed Amount object 10 can freely fall onto the transition apparatus 21 of the lower section of weighing platform 8.

The splicing weighing device realized by rotating shaft drive device typically also includes feed mechanism, according to the production rhythm and pace of moving things, scale When platform 8 is in the first 72 position of limited block, if the upper surface of weighing platform 8 is not weighed object 10, feed mechanism can be follow-up It is weighed object and serves weighing platform 8；Feed mechanism can also be operator, be directly put into subsequently object is weighed on weighing platform 8.

Weighing sensor 2 carries Impact direction and horizontal plane.Can be the gravity amplitude peak for being weighed object 10 Ground is added on weighing sensor 2, realizes high-precision weighing.

As shown in Fig. 2 weighing platform 8 is the L-shaped being made up of riser and bottom plate, riser height is suitable with being weighed object thickness, It can prevent to be weighed object 10 during feeding and go out weighing platform side.

As Figure 1-5, postive stop baffle 9 is fixed with connecting bracket, postive stop baffle 9 is located above the bottom plate of weighing platform 8 Part is straight line perpendicular to weighing platform 8 long side, lower edge and is smaller than being weighed object 10 with the plate upper surface of weighing platform 8 Edge thickness, the width of weighing platform 8 are adapted with being weighed the width of object 10.After the upright position of positive stop 9 should make weighing Object still freely can unimpededly land when nestling up positive stop 9.

Rotating shaft drive device 24 is rotary magnet.

As shown in figure 4, after end of weighing, rotating shaft drive device 24 drives weighing platform 8 quick by the position of the first positive stop 72 Ground is rotated to 71 pieces of opening positions of the second limiting block, because the bottom plate unusual light of weighing platform 8, is weighed object 10 because inertia does not have Follow weighing platform 8 to rotate together, but stay put and freely drop on the transition apparatus 21 below weighing platform 8.

As shown in figure 1, also include follow-up bearing 20 behind weighing bracket 1, positioned at weighing platform 8 on follow-up bearing 20 Lower section is provided with transition apparatus, and transition apparatus 21 is inclined smooth slide plate.Transition apparatus 21 can be flat board or U Shape cell body.Sorting rejecting mechanism can also be mounted directly on transition apparatus 21, weight certified products are let pass, given underproof Reject.

Sorting unit 14 is connected to after transition apparatus 21.

Sorting unit 14 is the smooth turnover panel 14 that turnover panel drive device 17 drives.Turnover panel drive device 17 is rotating electromagnetic Iron.As shown in figure 1, the qualified object 13 that weighed of weight is slided on material receiving mechanism 16 from the upper surface of smooth turnover panel 14；Such as Shown in Fig. 6, when the weight for having weighed object 13 is unqualified, turnover panel drive device 17 drives turnover panel 14 to turn over limited block under Turned on 19 positions positioned at the opening position of limited block 15 is above turned over, weighed object 13 and passed through entrance below the lower surface of turnover panel 14 Splicing unit 18.

Turnover panel drive device is rotary magnet.

As shown in figure 1, it is the flat rectangle hard objects in border to be weighed object 10, it is 6 ± 0.3g's of actual weight Paper wrapping bag, the size 100mmx30mmx4mm of built-in bulk cargo.Feeding unit material：60 per minute are weighed object, belt speed Spend for 30 ms/min.

The aluminum PW2D for the 7.2kg ranges that all testing schemes are produced from German HBM companies（Long 130mm, wide 25mm, High 15mm, conduct oneself with dignity 250g）Single point weighing cell and Shandong SeTAQ Instruments Co., Ltd. PLAC-5000 type weighing instruments.

Existing slideway weighing technology, using allowing the length direction for being weighed object 10 along the operation side for being weighed object 10 To sliding.Slideway of weighing is made from the thick 304 mirror face stainless steel bendings of 2mm, is shaped as the bottom surface long 250mm of wide 200mm（Material is slided Line direction）Rectangle, a height of 20mm of rib trough body structure.Angle of inclination is 30 °.Test result：20 bag continuous weightings Standard deviation is 0.035g, peak-to-peak value error is 0.105g.

Existing belt weighing technology, using the SCW/B20151000 weight go-on-go scales of Shandong SeTAQ Instruments Co., Ltd., Test result is：The standard deviation of 20 bag continuous weightings is 0.1g, peak-to-peak value error is 0.3g.

And after being weighed on fixed weighing platform, by with weighing platform without connection air-blowing, beat bar, swing rod, roller etc. Mechanical means, which is removed, is weighed object, and weighing sensor can not be under timely back to zero on the premise of meeting throughput rate and stabilization Come, can be sayed without precision；It is connected mechanism is removed with weighing platform, its cable, gas circuit etc., the weighing results standard deviation of these schemes Both greater than 0.5g.

As shown in figure 1, the long side of weighing platform 8 of the application is 130mm from postive stop baffle 9 to the outer distance of one, weighing platform 8 Width be 40mm, the high 10mm of L risers.From the stainless steel of 1 millimeters thick 304, bending forms.Rotating shaft drive device selects Shenzhen prestige The WCGF38-20/20 type rotary magnets of company are opened up, power is small, and impact is small, and turnover panel drive device is from Shenzhen Wei Tuo companies WCG50-20/40 type rotary magnets, power is big, drives torque during turnover panel 14 big, response is rapid.

The test result of the application：The standard deviation of 20 bag continuous weightings is 0.025g, peak-to-peak value error is 0.075g.

It can be seen that compared to existing various weighing technologies, weighing precision of the present utility model all greatly improves.

Embodiment two, as shown in fig. 7, the splicing weighing device realized by rotating shaft drive device it is identical with embodiment one it Place is not repeating, and difference is, connects the front side board 4 and back side panel of sensor connecting plate and rotating shaft drive device connecting plate 23 be damping shock absorption material, specially polyurethane（It is commonly called as elastic）.

The test result of the application：The standard deviation of 20 bag continuous weightings is 0.020g, peak-to-peak value error is 0.060g.

It can be seen that compared to embodiment one, after the utility model uses damping damping measure, weighing precision greatly improves again.

Embodiment three, a kind of splicing weighing device realized by rotating shaft drive device, as shown in Fig. 8,10,11, with reality Apply the something in common of example one do not repeating, difference is, rotating shaft 6 is arranged with plane-parallel, sensor connecting plate 3 and rotating shaft Two side plates between drive device connecting plate 5 are respectively epipleural 30 and lower side panel 27, and epipleural 30 and lower side panel 27 are distinguished It is connected in the horizontal direction with sensor connecting plate 3 with the upper and lower part of rotating shaft drive device connecting plate 5, epipleural 30 and downside Plate 27 is polyurethane material.

The shape of weighing platform 8 is adapted with size with being weighed the shape of the bottom of object 10 with size, it is ensured that weighing platform 8 is in the Object 10 is weighed during one 72 position of limited block can be stably on weighing platform 8.

It is rigidly connected as shown in figure 8, weighing sensor 2 carries end side surface with sensor connecting plate 3, rotating shaft drive device 24 The left side of rotating shaft drive connection plate 5 is fixed on, the rotating shaft 6 of rotating shaft drive device 24 is stretched out from the right surface of rotating shaft drive connection plate And be rigidly connected with T-shaped contiguous block 32, the upper surface and the lower surface of weighing platform 8 of T-shaped contiguous block 32 are rigidly connected, as shown in figure 9, The short side of T-shaped contiguous block 32 is close to rotating shaft 6, as shown in Figure 10,11, the two sides difference of the short side lower surface of T-shaped contiguous block 32 Contacted with the first positive stop 72 and the second positive stop 71, the first positive stop 72 and the second positive stop 71 are separately fixed at On rotating shaft drive device connecting plate 5.

As shown in Figure 10, the section of weighing platform 8 is the L-shaped being made up of riser and bottom plate, and riser is located at along weighing platform length direction Close to the first limited block position side, riser height is suitable with being weighed object thickness, can prevent to be weighed during feeding Object 10 goes out weighing platform side.

As shown in figure 11, weigh after end, rotating shaft drive device 24 drives weighing platform 8 quick by the position of the first positive stop 72 Ground is rotated to 71 pieces of opening positions of the second limiting block, is weighed object 10 and is initially rotation and slides, freely drops to weighing platform 8 afterwards On following transition apparatus 21.

The test result of the application：The standard deviation of 20 bag continuous weightings is 0.030g, peak-to-peak value error is 0.090g.

It can be seen that compared to existing various weighing technologies, weighing precision of the present utility model all greatly improves.

Claims (9)

1. a kind of splicing weighing device realized by rotating shaft drive device, it includes weighing bracket and is fixed on weighing bracket Weighing sensor, it is characterized in that weighing sensor bearing end is fixed with connecting bracket, connecting bracket by sensor connecting plate, turn The side plate composition of axial brake device connecting plate, connection sensor connecting plate and rotating shaft drive device connecting plate, sensor connecting plate It is rigidly connected with weighing sensor bearing end, rotating shaft drive device is fixedly installed on rotating shaft drive device connecting plate and is used to drive Turn axle, rotating shaft drive device is fixed on the side of rotating shaft drive device connecting plate, rotating shaft passes through rotating shaft drive device connecting plate Opposite side is reached to be rigidly connected with weighing platform；The first limited block and the second limit are fixedly installed on rotating shaft drive device connecting plate Position block, weighing platform pivoted with rotating shaft during between the first limited block and the second limited block reciprocally swinging.

2. the splicing weighing device according to claim 1 realized by rotating shaft drive device, it is characterized in that, rotating shaft is vertical Arrangement, the smooth plates that weighing platform bottom plate is arranged horizontally, rotating shaft are rigidly connected by strip connecting plate and weighing platform.

3. the splicing weighing device according to claim 2 realized by rotating shaft drive device, it is characterized in that, connecting bracket On be fixed with postive stop baffle, postive stop baffle is located at the part above the bottom plate of weighing platform perpendicular to the long side of weighing platform, postive stop baffle The edge thickness for being smaller than being weighed object of the plate upper surface of lower edge and weighing platform, the width of weighing platform is with being weighed object Width be adapted.

4. the splicing weighing device according to claim 1 realized by rotating shaft drive device, it is characterized in that, rotating shaft is horizontal Arrangement, the shape of weighing platform are adapted with size with being weighed the shape of underbody with size, it is ensured that it is spacing that weighing platform is in first Object is weighed during block position can be stably on weighing platform, and rotating shaft is rigidly connected by T-shaped contiguous block with weighing platform.

5. the splicing weighing device according to claim 1 realized by rotating shaft drive device, it is characterized in that, rotating shaft driving Device is rotary magnet.

6. the splicing weighing device according to claim 1 realized by rotating shaft drive device, it is characterized in that after also including Continuous bearing, is provided with transition apparatus, transition apparatus is inclined smooth slide plate on follow-up bearing below weighing platform.

7. the splicing weighing device according to claim 6 realized by rotating shaft drive device, it is characterized in that, transition apparatus After be connected to sorting unit.

8. the splicing weighing device according to claim 7 realized by rotating shaft drive device, it is characterized in that, sorting unit For the smooth turnover panel of turnover panel drive device driving.

9. the splicing weighing device according to claim 7 realized by rotating shaft drive device, it is characterized in that, turnover panel driving Device is rotary magnet.