CN1031761A - Controller for monofilament strength machine - Google Patents
Controller for monofilament strength machine Download PDFInfo
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- CN1031761A CN1031761A CN 87106093 CN87106093A CN1031761A CN 1031761 A CN1031761 A CN 1031761A CN 87106093 CN87106093 CN 87106093 CN 87106093 A CN87106093 A CN 87106093A CN 1031761 A CN1031761 A CN 1031761A
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- relay
- pincers
- plate
- photoelectric
- clamper
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of controller for monofilament strength machine of testing the strength characteristics of solid material with mechanical stress, two groups of photoelectric relay circuits formation in parallel combined circuit is arranged, it makes the upper and lower clamper of being controlled can vise fiber samples automatically, and begin to stretch, when pulling force surpasses fibre strength and after making fibre breakage, can make device reset again, surplus mao of removing automatically under the clips action of gravity just can be finished whole test job automatically, close the state that recovers initial that then installs of pitching of locating thereby only need be opened the location fork.Upper and lower clamper has scalable but can keep the pincers burr of constant pressure, has overcome personal error, improves measuring accuracy.
Description
The present invention relates to a kind of control assembly of tester of the strength characteristics with mechanical stress test solid material, relate more specifically to a kind of controller for monofilament strength machine.
Use the pulling strengrth that Y161 type monofilament strength machine is tested fiber always in the textile industry at present.Its adopts handle tuning valve to control the work of elevating mechanism, makes its lifting or stops.Application practice proves for many years, owing to pull handle (every test once promptly need be pulled three times) continually, the cone in the valve is is very easily worn and torn, and makes cone lose good being sealed and matched, cause leak and in let out, cause test error; Pull handle continually, also increased operator's labour intensity.The effect of the used electromagnet device of prior art is that control elongation scale makes its stop motion immediately in fibre breakage, thereby obtains correct reading, but because the rotating plate contact is frequent, easily oxidation and cause loose contact of surface, and the result is difficult to achieve one's goal; The defective that may cause the elongation scale not move again because of the remanent magnetism phenomenon of electromagnet.The pincers hair device of used upper and lower clamper, also make because of working continually and tight screw very easily weares and teares, two block pressur plates are not parallel or skid, and the result causes fibre damage when pressure is excessive, then produce interior skidding when pressure is too small, this machine error has influence on the correctness of test; Manually damage, and compaction forces is difficult to constant, the excessive or too small correctness that can influence test equally of pressure, and this is a personal error.
Primary and foremost purpose of the present invention is to design the work that a kind of photoelectric auto-controller is controlled elevating mechanism, substitutes manually-operated, thereby finishes whole test job automatically; Another object of the present invention is to be provided with one group of pincers hair device that clamps the hair adjustable in pressure but can keep constant pressure; A further object of the present invention is to make the pincers hair device of lower gripper to link with elevating mechanism, the automatic gripping fibers of pincers burr when promptly stretching, and surplus hair automatically then can get loose after breaking.
The present invention comes to be realized like this: the controller for monofilament strength machine of this strength characteristics with mechanical stress test solid material comprises that clamper, lower gripper, location pitch and control gear; Described control gear comprises controller, relay and two photoelectric tubes, but they are interconnected to constitute the work of automatically controlled water pump and make powerful machine finish the control gear of whole test job; Described controller comprises the control circuit of needle valve, two solenoid valves and control electromagnetic valve work; Described control circuit constitutes combined circuit by two groups of photoelectric relay circuit parallel connections, and shared one group of rectifier power source, every group of photoelectric relay circuit all formed tandem tap by two triodes, it is subjected to the photoelectric tube Control work, and come the work of control electromagnetic valve by relay, wherein the relay of control electromagnetic valve work is in parallel with the relay of control lower gripper action in the set of circuits, when being stretched, vises elevating mechanism fiber automatically, surplus hair automatically then can get loose after breaking, and the way of the big or small available change relay center of effort of the pincers hair power of lower gripper obtains to adjust, but promptly keeps constant once mixing up; The described clamper system of going up obtains constant pincers hair power by spring, but the center of effort of adjustment spring can be adjusted its pincers hair pressure equally.
Effect of the present invention is significantly, comprises that the control gear that composes in parallel the control circuit of combined type by two photoelectric relay circuits can control elevating mechanism work automatically and finish whole test job automatically; Use spring or relay, and adjust their center of effort, it is one adjustable but can keep the pincers hair power of constant pressure that upper and lower clamper is obtained, thereby make the test of same group of sample can avoid machinery and artificial error, guarantee test data correctly; The relay of control lower gripper pincers hair device work is in parallel with the relay of control stretching work has realized that then the present invention vises fiber automatically when stretching, the purpose of the surplus hair that then can get loose automatically after breaking.
Below in conjunction with accompanying drawing embodiments of the invention are described, thereby made CONSTRUCTED SPECIFICATION of the present invention, characteristics, purpose and advantage clearer and more definite.
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the synoptic diagram of present embodiment controller.
Fig. 3 is the electrical schematic diagram of present embodiment.
Fig. 4 is the water (flow) direction synoptic diagram of present embodiment.
Fig. 5 is a clamper structural representation on the present embodiment.
Fig. 6 is that the A of Fig. 5 is to view.
Fig. 7 is a present embodiment lower gripper structural representation.
Fig. 8 is that the B of Fig. 7 is to view.
As shown in Figure 1, the described control device of present embodiment comprises clamper 1, following binder 4, location fork 19 and control gear.Described control gear comprises interconnective controller 17, relay 12, photoelectric tube 10 and 20.Shown in accompanying drawing 2 and accompanying drawing 3, described controller 17 comprises needle valve 28, two solenoid valves 46 and 47 and the control circuit of control electromagnetic valve work; Described control circuit constitutes combined circuit by two groups of photoelectric relay parallel connections, and shared one group of rectifier power source 48, every group of photoelectric relay circuit all formed tandem tap by two triodes, be connected in series with the emitter of triode 39 and 33 respectively as the base stage of triode 38 and 32 and form, to improve the sensitivity and the reliability of on-off circuit; And the base stage of triode 39 and 33 can be diode or triode with photoelectric tube 20 and 10(respectively) positive pole join, described photoelectric tube 20 and 10 becomes contactless switch in the photoelectric relay circuit, in order to opening or closing of control circuit, has sensitive reliable characteristic; Triode 39 and 33 base stage place are provided with the biasing resistor 31a and 31 that a resistance is 150K respectively; The contact place of two groups of triodes 38,39 and 32,33 collector is provided with a relay 43 and 44 respectively, and they are subjected to switch control to inhale or put, thus the work of control electromagnetic valve 47 and 46; Be parallel with a diode 41a and 41 at the two ends of relay 43 and 44, it shields to triode 38,39 and 32,33.And at the relay 12 of a two ends control lower gripper 4 pincers hair device work in parallel in addition of the relay 44 of control electromagnetic valve 46 work, it is described relay 12 and 44 synchronous working under the control of a photoelectric relay circuit, thereby realize that the present invention vises fiber automatically when stretching, the purpose of the surplus hair that then can get loose automatically after breaking.
Now in conjunction with the accompanying drawings 2～4 and following route card the principle of work of present embodiment is described:
When power turn-on switch 26, signal lamp 27 is bright, and the expression control circuit is in readiness.At this moment photoelectric tube 10 and 20 all is subjected to illumination to form low internal resistance, promptly be the forward conduction state, the electric current major part photoelectric tube of flowing through, and lack enough bias voltages on biasing resistor 31 and the 31a, make triode 32 and 33,38 and 39 all are in cut-off state, three relays 12,43,44 all do not have suction moves, solenoid valve 46 is in the state of release, and solenoid valve 47 is subjected to the normally closed control of relay 44, so a power turn-on just is in the readiness of adhesive, at this moment the direction of intaking by in the accompanying drawing 4 shown in the solid line through the lower end of solenoid valve 47 passage, needle valve 28, the upper end passage of solenoid valve 46 enters the upper channel 14 of water pump 15, but lower end access denial because of solenoid valve 46, current are obstructed, and water pump 15 seizes up and treats duty.
When opening location fork 19, at this moment signal lamp 27 extinguishes, and signal lamp 29 is bright, represents that powerful machine begins stretching work.Because of opening the location fork at 19 o'clock, the shading column 9 that makes and locate fork 19 to link blocks the light of directive photoelectric tube 10, make the internal resistance (forward resistance) of photoelectric tube 10 become big, thereby set up a dividing potential drop at the two ends of photoelectric tube 10, dividing potential drop is given between the series connection base stage of triode 32 and 33 and the emitter and is added a forward bias voltage, triode 32 and 33 is worked simultaneously, make the relay parallel with one another 12 and 44 that is connected on collector loop because of there being electric current to flow through adhesive, the adhesive of relay 12 then makes lower gripper 4 actions and vises fiber to be tested; And relay 44 adhesive solenoid valves 46, make the lower end passage of solenoid valve 46 unimpeded, the water of elevating lever 13 bottoms can flow out through the lower end of the upper end of solenoid valve 47 passage, solenoid valve 46 passage from the lower end passage 16 of water pump 15 in the water pump 15, so water pump 15 is started working, be that elevating lever 13 drive lower grippers 4 begin to descend together, extension test work begins.Dynamometry fork 22 moves at this moment, and powerful power elongation begins metering.And water velocity can be regulated easily by needle valve 28.
When pulling force surpasses the strength degree of fiber, fiber is broken, in the fibre breakage, dynamometry fork 22 resets rapidly owing to out of trim, and under inertia effect beat to the right, be loaded on the light that anti-dazzling screen 21 on the dynamometry fork 22 shelters from directive photoelectric tube 20 this moment, set up a dividing potential drop at the two ends of photoelectric tube 20 equally, make relay 43 adhesives, make the adhesive of relay 44 obtain self-locking simultaneously, even be that photoelectric tube 20 is subjected to illumination, the electric current of solenoid valve 47 has promptly been cut off in still adhesive of relay 44, its adhesive, thereby makes solenoid valve 47 be the state of release, this moment, horizontal channel, solenoid valve 47 lower end was hindered, and vertical channel is opened, and current will be by the dotted line direction shown in the accompanying drawing 4, enters from the lower end passage of solenoid valve 47, vertical uplift flows out from the upper end, and the lower channel 16 from water pump 15 enters water pump 15 again; The water on water pump 15 tops then flows out from the upper channel 14 of water pump 15, enters solenoid valve 46 through solenoid valve 46 upper end passages, and flows out from its exit, lower end.The needle valve 28 that this moment, speed governing used because current are not flowed through makes elevating lever 13 drive lower grippers 4 and upwards gos up apace together and reset.This stage, two signal lamps were all bright.
Existing 5 and 6 structures that clamper 1 is described in conjunction with the accompanying drawings, the pincers hair device of last clamper 1 comprises moving plate 62, decides plate 69, dynamic pressure plate 65, fixed pressuring plate 67, stage clip 64 and a pair of guide pillar 66, cylindrical free bearing 59 is arranged on the described moving plate 62, cylindrical strand 58 is arranged on the pressing plate 69, strand 58 an embedding twisted seat 59 make plate 62 and decide plate 69 to be hinged and connected; Describedly decide to have on the plate 69 a plurality of holes 51 that are in differing heights, one end of confession torsion spring 55 embeds one of them on demand and is located, the other end of torsion spring 55 is then inserted in the chute 52 that moves on the plate 62, torsion spring 55 embeds in the hole 51 of different parts, can change the power arm that is constituted by between hole 51 and pin joint, can adjust with the torsion of deciding on the plate 69 thereby make torsion spring 55 act on moving plate 62.Described fixed pressuring plate 67 places the lower end of deciding plate 69; Described dynamic pressure plate 65 is provided with a pair of guide pillar 66, corresponding two guide pillar holes 68 of inserting for guide pillar 66 with the position of guide pillar 66 are arranged on the described fixed pressuring plate 67, and the setting in guide pillar 66 and the guide pillar hole 68 that is mated remains two pincers hair planes of the dynamic pressure plate 65 of gripping fibers and fixed pressuring plate 67 and is parallel to each other; One stage clip 64 is arranged between dynamic pressure plate 65 and fixed pressuring plate 67, it makes dynamic pressure plate 65 separate with respect to fixed pressuring plate 67, promptly, the pincers burr is opened, but because moving plate 62 has been placed restrictions on the open distance of pincers burr, and because the elastic force that torsion spring 55 gives makes the pincers burr be in normally off, only press lower moving plate 62, the pincers burr is the opening clamp hair.Decontrol moving plate 62, it is constant then acting on the after-applied pressure in fiber that offsets at torsion spring 55 with stage clip 64, has pincers hair constant pressure of the present invention to guarantee this device, helps overcoming the advantage of test error.
As shown in Figure 5, last clamper 1 has a balance handle 70 that weight is adjustable, balance plate 70 is a hollow tube-shape, can place in the tube for the weight equalizer 72 of regulating usefulness, be the vertical shape so that go up clamper 1, and with dynamometry fork balance, thereby the correspondence pincers hair plane 2 and 3 of upper and lower clamper 1 and 4 is parallel to each other.
Shown in accompanying drawing 7 and 8, the pincers hair device of lower gripper 4 comprises moving plate 62a, decides plate 69a and not shown dynamic pressure plate, fixed pressuring plate, stage clip and guide pillar, but it also comprises relay 12, move plate 62a and decide plate 69a equally by being connected by a hinge 58a embedding free bearing 59a, dynamic pressure plate, fixed pressuring plate, stage clip and guide pillar then constitute and the identical pincers burr of the pincers burr of last clamper 1.Described moving plate 62a has the tail end 77 of an inclination, and relay 12 has lever armature 78, and the weight arm end of described armature 78 contacts with the tail end 77 of moving plate 62a.Plane 3 height and positions of living in of lower gripper 4 can be adjusted according to spacing scale 74 on demand, and are located by screw 75.The pincers burr of lower gripper 4 often leaves, and extended distance can be adjusted spacing with the screw of deciding on the plate 69 88.Loosening screw 81, the lever armature 78 that then can make relay 12 with relay by dress support 82 along 74 liftings of spacing scale, with the weight arm end of adjusting armature 78 contact, thereby change the size of the pincers hair power of lower gripper 4 pincers mao devices with the inclination tail end 77 of moving plate 62a.As previously mentioned, when opening location fork 19, relay 12 adhesives, armature 78 acts on the inclination tail end 77 of moving plate 62a, makes the pincers burr closure of lower gripper 4 clamp fiber, and the beginning extension test; When location fork 19 is broken and closed to fiber, relay 12 discharges, the pincers burr unclamps, surplus hair (is sandwiched in the fiber samples lower end, straightening of fibers is used at the tension folder, not shown) action of gravity under, fall along the direction of the tension folder guide rail 6 that is installed on spacing scale 74 places and to slide, thereby reach the effect of the surplus hair of automatic elimination pincers burr, and prepare next test procedure.
After the preceding revisal of the capable revisal of file name page or leaf
Instructions 44 34 37 10 20
4 16～solenoid valve 47 is subjected to relay magnet valve 47 and is in ...,
The normally closed control of 17 electrical equipment 44
Make, so one closes
Power supply just is in ...,
55 powerful power are stretched brute force and are stretched
Claims (8)
1, a kind of controller for monofilament strength machine of testing the strength characteristics of solid material with mechanical stress, it comprises clamper 1, lower gripper 4, location fork 19 and control gear, the invention is characterized in that above-mentioned control gear is to comprise interconnective controller 17, relay 12 and two photoelectric tubes 10 and 20, make powerful machine finish the control gear of whole test job in order to the work of automatically controlled water pump 15; Described controller 17 comprises the control circuit of needle valve 28, two solenoid valves 46,47 and control electromagnetic valve work; Described relay 12 control lower grippers 4 pincers hairs; Describedly go up that clamper 1 and lower gripper 4 all have scalable but the pincers hair device that can keep constant pressure.
2, by the described controller for monofilament strength machine of claim 1, it is characterized in that described control circuit has two groups of photoelectric relay circuits formation in parallel combined circuit, and shared one group of rectifier power source 48; Described each group photoelectric relay circuit has the base stage of a triode 32 or 38 and the emitter of another triode 33 or 39 to compose in series tandem tap, and base stage and photoelectric tube 10 or the 20(of series connection triode can be diode or triode) positive pole join contactless switch in described photoelectric tube 10 and the 20 formation photoelectric relay electrical equipment; The base stage place of series connection triode establishes a deflection resistance 31 or a 31a, and collector place is established the relay 44 or 43 of a control electromagnetic valve 46 or 47 work; At the two ends of described relay 44 or 43 diode that shields 41 in parallel or 41a.
3, by the described controller for monofilament strength machine of claim 2, relay 12 that it is characterized in that the set of circuits in described two groups of photoelectric relay circuits in a two ends control lower gripper 4 pincers hair device work in parallel in addition of the relay 44 of its control electromagnetic valve 46 work, promptly described relay 12 and 44 synchronous working under the control of a photoelectric relay circuit.
4,, it is characterized in that described photoelectric tube 10 is subjected to and locatees shading column 9 controls of fork 19 interlocks by the described controller for monofilament strength machine of claim 3; The anti-dazzling screen 21 that 20 of described photoelectric tubes are subjected to link to each other with dynamometry fork 22 is controlled.
5, by claim 1 or 2 or 3 or 4 described controller for monofilament strength machine, the pincers hair device that it is characterized in that described upper and lower clamper 1,4 comprises moving plate 62 and 62a respectively, decide plate 69 and 69a, dynamic pressure plate 65, fixed pressuring plate 67, stage clip 64 and a pair of guide pillar 66, described moving plate 62 or 62a with decide plate 69 or 69a by being hinged and connected; Described fixed pressuring plate 67 is fixed on an end of deciding plate 69 and 69a, dynamic pressure plate 65 cooperates with fixed pressuring plate 67 by the guide pillar 66 on the dynamic pressure plate 65, and dynamic pressure plate 65 is separated with respect to fixed pressuring plate 67, be about to clamp burr and open, but moving plate 62 and 62a have placed restrictions on the open distance of pincers burr.
6,, it is characterized in that the moving plate 62 of the described upward pincers hair device of clamper 1 and decide plate 69 acted on by the adjustable elastic force in force by the described controller for monofilament strength machine of claim 5; The described clamper 1 of going up has one in order to keeping clamper 1 to be the vertical shape, and the adjustable balance handle 70 of weight that the corresponding pincers hair plane 2 and 3 of upper and lower clamper 1 and 4 is parallel to each other.
7, by the described controller for monofilament strength machine of claim 5, it is characterized in that described lower gripper 4 the pincers burr often to open distance be adjustable, the moving plate 62a of pincers hair device has the tail end 77 of an inclination; Relay 12 has lever armature 78, and the weight arm end of described armature 78 contacts with the inclination tail end 77 of moving plate 62a, and its contact position is adjustable to change the size of pincers hair power.
8,, it is characterized in that a tension folder downslide guide piece tension folder guide rail 6 is equipped with at spacing scale 74 places of described lower gripper 4 by the described controller for monofilament strength machine of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106093 CN1031761A (en) | 1987-08-31 | 1987-08-31 | Controller for monofilament strength machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106093 CN1031761A (en) | 1987-08-31 | 1987-08-31 | Controller for monofilament strength machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031761A true CN1031761A (en) | 1989-03-15 |
Family
ID=4815575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106093 Pending CN1031761A (en) | 1987-08-31 | 1987-08-31 | Controller for monofilament strength machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363826B (en) * | 2008-09-24 | 2012-03-28 | 中国农业大学 | Method for measuring pulling resistance and tensile breaking strength of plant and device |
-
1987
- 1987-08-31 CN CN 87106093 patent/CN1031761A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363826B (en) * | 2008-09-24 | 2012-03-28 | 中国农业大学 | Method for measuring pulling resistance and tensile breaking strength of plant and device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |