CN107297328A - A kind of method of screen cloth auto-tensioning in Feed Manufacturing screening machine - Google Patents
A kind of method of screen cloth auto-tensioning in Feed Manufacturing screening machine Download PDFInfo
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- CN107297328A CN107297328A CN201710629858.8A CN201710629858A CN107297328A CN 107297328 A CN107297328 A CN 107297328A CN 201710629858 A CN201710629858 A CN 201710629858A CN 107297328 A CN107297328 A CN 107297328A
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- screen cloth
- fixed
- screen
- tensioning
- electromagnet
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
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- Combined Means For Separation Of Solids (AREA)
Abstract
It is the invention discloses a kind of method of screen cloth auto-tensioning in Feed Manufacturing screening machine, including step：Screen cloth primary tension is fixed, screen cloth sieving amount is default, vibration screening, vibration screening feed metering, screen cloth are tensioned the secondary tensioning of fixed and screen cloth and fixed again.Wherein, the fixation of screen cloth primary tension includes the fixation of screen cloth external part winding and screen cloth is fixed.Screen cloth is tensioned again fixed includes that screen cloth releasing is fixed, screen cloth is tensioned again and screen cloth is fixed again.The method of screen cloth auto-tensioning in the Feed Manufacturing screening machine of the present invention, on-line automatic can be tensioned to screen cloth, and screening efficiency is high, and screen cloth is not easily blocked, and screen cloth service life is long.
Description
Technical field
The present invention relates to a kind of Feed Manufacturing householder method, screen cloth is automatic in particularly a kind of Feed Manufacturing screening machine
The method of tensioning.
Background technology
Feed, is the Major Foods of modern animal husbandry letting animals feed.The production of current feed includes graininess, powdery or other
The product of shape, but before production feed mixing, to improve the degree of mixing of product, the raw material provided makes the uniformity as far as possible
High, this is accomplished by being sieved raw material, and is not sieved other by the identical or approximate raw material mix of fine granularity together
Raw material return again crush after use, so as to provide the utilization rate of raw material.Therefore, it is necessary to configure in feed preparation
Sieving mechanism, to improve the quality of Feed Manufacturing.
However, existing sieving mechanism is in screening process, can occur as follows not enough：
1. due to the not equal reason of granularity or powdery water content of feed, screen cloth was used after a period of time, easily occur blocking existing
As causing screening efficiency not high, fraction defective is high.
2. reason of weighing etc. due to vibration or for a long time, screen cloth in use for some time, especially easily goes out in the middle part of screen cloth
Existing relaxation, so as to cause screening efficiency not high, fraction defective is high.Once screen cloth relaxes, existing operation is then to continue with
Use, only when screen cloth slackness reaches capacity, whole screen cloth is just subjected to replacement operation.
Application No. CN201610089198.4 Chinese invention patent application, entitled " one kind sieve of its innovation and creation
Net tensioning apparatus ", it includes the tensioning connector, adjusting screw rod, adjusting nut, the tensioning screw that connect screen cloth, and the tensioning connects
Fitting is placed on the inside of screen frame, and adjusting nut is placed on the outside of screen frame, and described adjusting screw rod one end is stretched into screen frame through adjusting nut
Side is connected with tensioning connector；Cavity is provided with inside the adjusting screw rod, the other end of adjusting screw rod is provided with internal thread hole, and this is interior
Screwed hole is communicated with inner chamber, and the external screw thread of the tensioning screw matches with above-mentioned internal thread hole, and one end of tensioning screw passes through
Internal thread hole is screwed in the cavity of adjusting screw rod.
Above-mentioned patent application, is used in combination adjusting screw rod and tensioning screw, reduces the deformation of mechanism.Meanwhile, employ
Coarse adjustment and the double governor motions of accurate adjustment, need the tensioning situation come adjustable screen according to real work, screen cloth is closely tensioned, extend
The service life of screen cloth.
However, above-mentioned screen cloth tensioning process is only operated when screen cloth is installed, tensioning process is cumbersome.It is further of importance that above-mentioned sieve
Net is only capable of tensioning once, and in use, once occurring again after relaxation, then whole screen cloth can only be changed screen cloth
Processing, it is impossible to be tensioned online, inefficiency, screen cloth service life is short, and screening efficiency is low.
The content of the invention
In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of Feed Manufacturing sieve
The method of screen cloth auto-tensioning can be on-line automatic to sieve in the method for screen cloth auto-tensioning in extension set, the Feed Manufacturing screening machine
Net is tensioned, and screening efficiency is high, and screen cloth is not easily blocked, and screen cloth service life is long.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
The method of screen cloth auto-tensioning, comprises the following steps in a kind of Feed Manufacturing screening machine.
Step 1, screen cloth primary tension is fixed：Screen cloth primary tension is fixed, and is comprised the following steps.
Step 11, screen cloth external part winding is fixed：Screen area is more than screen frame bottom area, and screen cloth outer ledge stretches out sieve
Frame bottom；By on elastic ring, making screen cloth external part screen cloth to be in tensioning state, then by screen cloth external part and bullet
Property circle is fixedly connected；Screen frame is made up of metal material.
Step 12, screen cloth is fixed：Fixed frame bottom, which is provided with steel wire, steel wire, places steel ball, in fixed frame
Nesting is fixed with permanent magnet；Permanent magnet in fixed frame and screen frame are mutually adsorbed into fixation, screen cloth is pressed abd fixed on screen frame bottom
With fixed frame bottom.
Step 2, screen cloth sieving amount is preset：Within the screen cloth service life cycle, the sieving amount to screen cloth is preset, and is preset
Screen cloth sieving amount include first preset value and secondary preset value；Secondary preset value is more than first preset value.
Step 3, vibration screening：Vibration screen up-down vibration, makes production feed link cross screen filtration, forms roughage and thin
Feed；Meanwhile, steel ball bob between screen cloth and steel wire prevents screen cloth from blocking.
Step 4, vibration screening feed metering：Measured by the weight to feed added by loading hopper, and then count sieve
The sieving amount of net.
Step 5, screen cloth is tensioned fixation again：When the screen cloth sieving amount that step 4 is counted reaches that first preset value or screen cloth go out
During existing relaxation, the tensioning again that screen cloth is carried out in accordance with the following steps is fixed.
Step 51, screen cloth is released and is fixed：Inlay to be fixed on the first electromagnet of screen frame bottom and inlay and be fixed on forever
The second electromagnet in magnet is powered simultaneously, and the sense of current led in the first electromagnet and the second electromagnet is on the contrary, first
Electromagnetic repulsion force is produced between electromagnet and the second electromagnet, the suction that the electromagnetic repulsion force can be more than or equal between permanent magnet and screen frame
Attached power, screen cloth, which is released, to be fixed.
Step 52, screen cloth is tensioned again：Screen cloth release be fixed while, contraction pole shorten, pressure strip bottom to
Stick up outside, so that elastic ring is stretched out, and then cause screen cloth to cause tensioning.
Step 53, screen cloth is fixed again：While screen cloth is tensioned, the first electromagnet and the second electromagnet stop leading to
Electricity, screen cloth is pressed between permanent magnet and screen frame again.
Step 6, the secondary tensioning of screen cloth is fixed：When the screen cloth sieving amount that step 4 is counted reaches secondary preset value or screen cloth again
Secondary when there is relaxation, the secondary tensioning for carrying out screen cloth according to step 5 method is fixed.
In step 11, screen cloth external part and elastic ring is are adhesively fixed or microwave joining is fixed.
Displacement transducer is provided with contraction pole, the contracted length of contraction pole can be measured.
Angular transducer is provided with pressure strip, the angular transducer can be carried out to the angle between pressure strip and vertical plane
Measurement.
The size of current led in first electromagnet and the second electromagnet can be adjusted, and then cause the first electromagnet and the
Electromagnetic repulsion force is produced between two electromagnet and is sized to regulation.
The present invention is using after the above method, and screen cloth is not easily blocked, and screen cloth can be tensioned, and screening can not influenceed to imitate
In the case of rate, the service life of screen cloth is improved.
Brief description of the drawings
Fig. 1 shows a kind of structural representation of Feed Manufacturing screening machine of the invention.
Fig. 2 shows the structural representation of vibration screen.
Wherein have：10. frame；20. loading hopper；30. spring；40. vibration screen；41. screen frame；411. first electromagnet；
412. roughage discharging openings；42. screen cloth；43. steel wire；44. steel ball；45. permanent magnet；451. second electromagnet；51. elasticity
Circle；52. pressure strip；53. tensioning spring；54. contraction pole；60. thin feed charge box；61. thin feed discharging opening.
Embodiment
The present invention is further detailed explanation with specific better embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of Feed Manufacturing screening machine, including frame 10, loading hopper 20, spring 30, vibration screen 40,
Screen cloth tension assembly and thin feed charge box 60.
Vibration screen is co-axially located at the top of thin feed charge box, and thin feed charge cassette bottom portion passes through spring and frame phase
Connection.
Loading hopper is arranged on the top of vibration screen.
As shown in Fig. 2 vibration screen includes screen frame 41, screen cloth 42, steel wire 43, steel ball 44 and permanent magnet 45.
Screen frame is made of metal, and screen frame bottom is nested with the first electromagnet 411.
The periphery of steel wire be provided with screen frame inside/outside diameter size identical fixed frame, be provided with permanent magnetism at the top of fixed frame
Body, permanent magnet is embedded to be cased with the second electromagnet 451.
Fixed frame bottom is connected with thin feed charge box screw top, namely vibration screen and thin feed charge box formation one
Individual entirety, the entirety can carry out periodicity up-down vibration in the presence of the drive of vibrating motor and spring.Thus, vibratory sieve
Feed granules screening can be roughage and thin feed by net, and roughage, from the outflow of roughage discharging opening, thin feed is raised from thin
Expect discharging opening outflow.
Steel ball is placed on steel wire, the setting of above-mentioned steel ball and steel wire, when vibration screen up-down vibration, steel ball energy
The bob between screen cloth and steel wire, and then the automatic cleaning to screen cloth is realized, prevent screen cloth from blocking.
Screen cloth tensioning is laid in above steel wire, and screen cloth external diameter is more than screen frame external diameter, and screen periphery is from screen frame bottom and admittedly
Determine to pass in the gap between arch；Meanwhile, the traversing through end winding of screen cloth is fixed on elastic ring 51.
The periphery of screen frame is uniformly laid with several screen cloth tension assemblies, and each screen cloth tension assembly includes pressure strip
52nd, tensioning spring 53 and contraction pole 54.
The bottom of pressure strip is fixedly connected with elastic ring, and the middle part of pressure strip passes through tensioning spring and phase in the middle part of screen frame outer wall
Connection, the top of pressure strip is fixedly connected with one end of contraction pole, and the other end of contraction pole at the top of screen cloth outer wall with being fixedly connected；
The length of contraction pole can stretch.
The screen frame of vibration screen is provided with roughage discharging opening 412, and roughage discharging opening is preferably wrong with screen cloth tension assembly
Open arrangement.
Thin feed discharging opening 61 is provided with the side wall of thin feed charge box.
First electromagnet and the second electromagnet after being powered, the sense of current on the contrary, the first electromagnet and the second electromagnet it
Between can produce electromagnetic repulsion force.
Every contraction pole is both preferably screw, but it is also possible to be other known contraction mode.
Further, the electrical current in the first electromagnet and the second electromagnet is sized to regulation.
Further, preferably it is socketed with splicing bag on roughage discharging opening and thin feed discharging opening.
The method of screen cloth auto-tensioning, comprises the following steps in a kind of Feed Manufacturing screening machine.
Step 1, screen cloth primary tension is fixed：Screen cloth primary tension is fixed, and is comprised the following steps.
Step 11, screen cloth external part winding is fixed：Screen area is more than screen frame bottom area, and screen cloth outer ledge stretches out sieve
Frame bottom；By on elastic ring, making screen cloth external part screen cloth to be in tensioning state, then by screen cloth external part and bullet
Property circle be fixedly connected, preferably fixed form is bonding or microwave joining etc.；Screen frame is made up of metal material.
Step 12, screen cloth is fixed：Fixed frame bottom, which is provided with steel wire, steel wire, places steel ball, in fixed frame
Nesting is fixed with permanent magnet；Permanent magnet in fixed frame and screen frame are mutually adsorbed into fixation, screen cloth is pressed abd fixed on screen frame bottom
With fixed frame bottom.
Step 2, screen cloth sieving amount is preset：Within the screen cloth service life cycle, the sieving amount to screen cloth is preset, and is preset
Screen cloth sieving amount include first preset value and secondary preset value；Secondary preset value is more than first preset value.
Step 3, vibration screening：Vibration screen up-down vibration, makes production feed link cross screen filtration, forms roughage and thin
Feed；Meanwhile, steel ball bob between screen cloth and steel wire prevents screen cloth from blocking.
Step 4, vibration screening feed metering：Measured by the weight to feed added by loading hopper, and then count sieve
The sieving amount of net.
Step 5, screen cloth is tensioned fixation again：When the screen cloth sieving amount that step 4 is counted reaches that first preset value or screen cloth go out
During existing relaxation, the tensioning again that screen cloth is carried out in accordance with the following steps is fixed.
Step 51, screen cloth is released and is fixed：Inlay to be fixed on the first electromagnet of screen frame bottom and inlay and be fixed on forever
The second electromagnet in magnet is powered simultaneously, and the sense of current led in the first electromagnet and the second electromagnet is on the contrary, first
Electromagnetic repulsion force is produced between electromagnet and the second electromagnet, the suction that the electromagnetic repulsion force can be more than or equal between permanent magnet and screen frame
Attached power, screen cloth, which is released, to be fixed.
The size of current led in first electromagnet and the second electromagnet is preferably able to regulation, and then causes the first electromagnet
And second produce electromagnetic repulsion force between electromagnet and be sized to regulation.
Step 52, screen cloth is tensioned again：Screen cloth release be fixed while, contraction pole shorten, pressure strip bottom to
Stick up outside, so that elastic ring is stretched out, and then cause screen cloth to cause tensioning.
Further, displacement transducer is preferably provided with contraction pole, the contracted length of contraction pole can be measured.
Further, be preferably provided with angular transducer on pressure strip, the angular transducer can to pressure strip and vertical plane it
Between angle measure.
Step 53, screen cloth is fixed again：While screen cloth is tensioned, the first electromagnet and the second electromagnet stop leading to
Electricity, screen cloth is pressed between permanent magnet and screen frame again.
Step 6, the secondary tensioning of screen cloth is fixed：When the screen cloth sieving amount that step 4 is counted reaches secondary preset value or screen cloth again
Secondary when there is relaxation, the secondary tensioning for carrying out screen cloth according to step 5 method is fixed.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of equivalents can be carried out to technical scheme, this
A little equivalents belong to protection scope of the present invention.
Claims (5)
1. a kind of method of screen cloth auto-tensioning in Feed Manufacturing screening machine, it is characterised in that：Comprise the following steps：
Step 1, screen cloth primary tension is fixed：Screen cloth primary tension is fixed, and is comprised the following steps：
Step 11, screen cloth external part winding is fixed：Screen area is more than screen frame bottom area, and screen cloth outer ledge stretches out screen frame bottom
Portion；By on elastic ring, making screen cloth external part screen cloth to be in tensioning state, then by screen cloth external part and elastic ring
It is fixedly connected；Screen frame is made up of metal material；
Step 12, screen cloth is fixed：Fixed frame bottom, which is provided with steel wire, steel wire, places steel ball, and fixed frame is nested with
It is fixed with permanent magnet；Permanent magnet in fixed frame and screen frame are mutually adsorbed into fixation, screen cloth is pressed abd fixed on screen frame bottom and solid
Determine frame bottom；
Step 2, screen cloth sieving amount is preset：Within the screen cloth service life cycle, the sieving amount to screen cloth is preset, default sieve
Net sieving amount includes first preset value and secondary preset value；Secondary preset value is more than first preset value；
Step 3, vibration screening：Vibration screen up-down vibration, makes production feed link cross screen filtration, forms roughage and thin feeding
Material；Meanwhile, steel ball bob between screen cloth and steel wire prevents screen cloth from blocking；
Step 4, vibration screening feed metering：Measured by the weight to feed added by loading hopper, and then count screen cloth
Sieving amount；
Step 5, screen cloth is tensioned fixation again：When the screen cloth sieving amount that step 4 is counted reaches that pine occur in first preset value or screen cloth
During relaxation phenomenon, the tensioning again that screen cloth is carried out in accordance with the following steps is fixed；
Step 51, screen cloth is released and is fixed：Inlay to be fixed on the first electromagnet of screen frame bottom and inlay and be fixed on permanent magnet
In the second electromagnet be powered simultaneously, and the sense of current led in the first electromagnet and the second electromagnet is on the contrary, the first electromagnetism
Electromagnetic repulsion force is produced between iron and the second electromagnet, the absorption that the electromagnetic repulsion force can be more than or equal between permanent magnet and screen frame
Power, screen cloth, which is released, to be fixed；
Step 52, screen cloth is tensioned again：While screen cloth is released and is fixed, contraction pole shortens, and pressure strip bottom is outwards stuck up,
So that elastic ring is stretched out, and then screen cloth is caused to cause tensioning；
Step 53, screen cloth is fixed again：While screen cloth is tensioned, the first electromagnet and the second electromagnet stop being powered, sieve
Net is pressed between permanent magnet and screen frame again；
Step 6, the secondary tensioning of screen cloth is fixed：When the screen cloth sieving amount that step 4 is counted reaches that secondary preset value or screen cloth go out again
During existing relaxation, the secondary tensioning for carrying out screen cloth according to step 5 method is fixed.
2. the method for screen cloth auto-tensioning in Feed Manufacturing screening machine according to claim 1, it is characterised in that：Step
In 11, screen cloth external part and elastic ring is are adhesively fixed or microwave joining is fixed.
3. the method for screen cloth auto-tensioning in Feed Manufacturing screening machine according to claim 1, it is characterised in that：Shrink
Displacement transducer is provided with bar, the contracted length of contraction pole can be measured.
4. the method for screen cloth auto-tensioning in Feed Manufacturing screening machine according to claim 1, it is characterised in that：Compress
Angular transducer is provided with plate, the angular transducer can be measured to the angle between pressure strip and vertical plane.
5. the method for screen cloth auto-tensioning in Feed Manufacturing screening machine according to claim 1, it is characterised in that：First
The size of current led in electromagnet and the second electromagnet can be adjusted, and then be caused between the first electromagnet and the second electromagnet
Produce electromagnetic repulsion force and be sized to regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629858.8A CN107297328B (en) | 2017-07-28 | 2017-07-28 | Method for automatically tensioning screen in screening machine for feed production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629858.8A CN107297328B (en) | 2017-07-28 | 2017-07-28 | Method for automatically tensioning screen in screening machine for feed production |
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| Publication Number | Publication Date |
|---|---|
| CN107297328A true CN107297328A (en) | 2017-10-27 |
| CN107297328B CN107297328B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710629858.8A Active CN107297328B (en) | 2017-07-28 | 2017-07-28 | Method for automatically tensioning screen in screening machine for feed production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000036A (en) * | 2019-12-31 | 2020-04-14 | 福建天马科技集团股份有限公司 | Puffed pellet feed for rapid growth of east star spots and preparation method and equipment thereof |
| CN114289297A (en) * | 2022-01-13 | 2022-04-08 | 枣庄科技职业学院 | Automatic screening device for solid materials |
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| JP2002001220A (en) * | 2000-06-26 | 2002-01-08 | Ando Screen Seisakusho:Kk | Net for sieve shaker |
| CN203155529U (en) * | 2013-04-16 | 2013-08-28 | 陈卫康 | Vibrating screen |
| CN103611678A (en) * | 2013-12-11 | 2014-03-05 | 山东润科机电设备有限公司 | Method for rapidly replacing strained sieve net and vibration sieve |
| CN103658017A (en) * | 2013-12-14 | 2014-03-26 | 淄博正邦知识产权企划有限公司 | Method for improving working condition and effectively protecting screen and vibrating screen |
| CN104399664A (en) * | 2014-12-15 | 2015-03-11 | 山东润科机电设备有限公司 | Method for rapidly tightening screen mesh, and vibrating screen |
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2017
- 2017-07-28 CN CN201710629858.8A patent/CN107297328B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002001220A (en) * | 2000-06-26 | 2002-01-08 | Ando Screen Seisakusho:Kk | Net for sieve shaker |
| CN203155529U (en) * | 2013-04-16 | 2013-08-28 | 陈卫康 | Vibrating screen |
| CN103611678A (en) * | 2013-12-11 | 2014-03-05 | 山东润科机电设备有限公司 | Method for rapidly replacing strained sieve net and vibration sieve |
| CN103658017A (en) * | 2013-12-14 | 2014-03-26 | 淄博正邦知识产权企划有限公司 | Method for improving working condition and effectively protecting screen and vibrating screen |
| CN104399664A (en) * | 2014-12-15 | 2015-03-11 | 山东润科机电设备有限公司 | Method for rapidly tightening screen mesh, and vibrating screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111000036A (en) * | 2019-12-31 | 2020-04-14 | 福建天马科技集团股份有限公司 | Puffed pellet feed for rapid growth of east star spots and preparation method and equipment thereof |
| CN114289297A (en) * | 2022-01-13 | 2022-04-08 | 枣庄科技职业学院 | Automatic screening device for solid materials |
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| Publication number | Publication date |
|---|---|
| CN107297328B (en) | 2020-02-21 |
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