CN202072889U

CN202072889U - Safety alarm device of computer flat knitting machine

Info

Publication number: CN202072889U
Application number: CN2011201171926U
Authority: CN
Inventors: 金永良; 付洪平; 孙健
Original assignee: CHANGSHU JINLONG MACHINERY Co Ltd
Current assignee: Jiangsu Jinlong Technology Co Ltd
Priority date: 2011-04-20
Filing date: 2011-04-20
Publication date: 2011-12-14
Anticipated expiration: 2021-04-20

Abstract

A safety alarm device of a computer flat knitting machine belongs to the technical field of computer flat knitting machines, and comprises a base, a signal collector, a base cover plate, a cam piece, a contact pin actuating mechanism and a probe piece, wherein the base is provided with a signal collector cavity, and a pushing plate hole is arranged in one side of the signal collector cavity; the signal collector is arranged in the signal collector cavity, and electrically connected with a controller by a line; the base cover plate is matched with the base, a cavity is arranged on at one side of the base cover plate, a sliding block cavity is concavely arranged at one side of the cavity, and a shaft head hole is arranged in the cavity of the base cover plate; a central shaft is arranged at one side of the cam piece, and arranged in a central shaft hole of the base, one side of the central shaft, facing to the base cover plate, is provided with a shaft head which is arranged in a shaft head hole, and a probe piece base is formed by the tail end of the shaft head; the contact pin actuating mechanism is arranged in the sliding block cavity, and matched with a signal collection contact pin and the cam piece; and an adjusting groove is arranged at one end of the probe piece, and a base cover plate extends from the other end of the probe piece. The safety alarm device has the advantages that the false alarm can be avoided, the structure is simpler, the floating cloth actuation can be facilitated, and the probe piece can be adjusted in the range of the adjusting groove according to needs.

Description

The safety alarm device of computer plain flat knitter

Technical field

The utility model belongs to the computer plain flat knitter technical field, is specifically related to a kind of safety alarm device of computer plain flat knitter

Background technology

The safety alarm device of computer plain flat knitter is also referred to as probe unit, also is called as floating cloth detection agency, is installed on the head of computer plain flat knitter, moves with head.When the knitting needle on the needle-bar (also claiming needle plate) remains static because of damage, just touch and report to the police by safety alarm device, computer plain flat knitter is shut down, resume work after waiting to get rid of the knitting needle of promptly replacing damage.

Particularly can be seen in the safety alarm device of having used above-mentioned effect in the Chinese patent literature at document, for example utility model Granted publication CN201665755U and CN201372351Y all disclose a kind of secure induction device (being that same applicant proposes) of flat-knitting machine head, its mode of action is: when probe tile (patent claims probe) is touched mutually with the knitting needle that damages, perhaps by the float in the braiding process, when flying the head of foreign material actuated probe sheet of yarn and so on, probe tile rotates and makes the afterbody of probe tile touch the switch pin (patent claims button) of microswitch, because the controller of microswitch and computer plain flat knitter is electrically connected, therefore sending instruction by controller quits work knitting mechanism, wait to replace the knitting needle of damage or remove float, fly to resume work again behind the foreign material of yarn and so on, and by the staff probe tile is pulled out and to get back to the origin-location.One of common shortcoming of these two patent schemes, probe tile can not be returned extensive automatically, needs the people for setting right, and therefore comparatively bothers, and especially, if be negligent of setting right, can cause spurious alarm; Two, complex structure make to be installed or is safeguarded all comparatively trouble no matter be; Three, probe tile by the pivot pin screw turns be defined on the probe shaft, the pivot pin screw is bigger to the press force of probe, thereby be difficult to floating cloth actuated probe sheet by softness, the notion of floating cloth is: when appearance is undesired in the braiding process, perhaps major and minor roller occurs when unusual the traction of braided fabric, and cloth cover can emersion needle plate mouth, and the part of emersion is called floating cloth.If the untimely eliminating of this phenomenon then can have a strong impact on carrying out smoothly of knitting, and even influence quality of braided fabric.As described above,, therefore be difficult to the deflection of actuated probe sheet, can't play due warning effect because braided fabric is comparatively soft; Four, therefore probe tile reason bearing pin screw pivotally is defined in probe shaft, can not regulate.There is aforesaid shortcoming equally in the safety alarm device for flat knitting machine that invention patent mandate notification number CN101260594B recommends.

At above-mentioned prior art, the applicant has done useful design, and done experiment under secrecy provision on the computer plain flat knitter that the applicant produces, it is practicable that the result proves, and technical scheme described below produces under this background

Summary of the invention

Task of the present utility model be to provide a kind of probe tile to automatically reset and help avoid that the spurious alarm phenomenon takes place, structure is terse and help making installation and maintenance, the active force that causes probe tile to pivot is little and be of value to floating cloth is surveyed and probe tile can be regulated as required and the safety alarm device of the computer plain flat knitter of being convenient to hold installation accuracy arranged.

Task of the present utility model is finished like this, and a kind of safety alarm device of computer plain flat knitter comprises a pedestal, and this pedestal has a signal picker chamber, and a side in this signal picker chamber offers a push pedal hole; One signal picker is arranged in the signal picker chamber, and is electrically connected by the controller of circuit and computer plain flat knitter, and the signals collecting haptic element of this signal picker is corresponding to described push pedal hole; One pedestal cover plate, match with pedestal, this pedestal cover plate has cavity volume towards a side of pedestal, is concaved with a slide block chamber at the position placed in the middle of a side of cavity volume, and also offer a spindle nose hole in the cavity volume of pedestal cover plate, the spindle nose hole is corresponding with described slide block chamber; One cam bit, this cam bit has a central shaft towards a side of described pedestal, this central shaft rotates and is arranged in the central shaft hole that is opened on the pedestal, and cam bit has a spindle nose towards a side of pedestal cover plate and at the position corresponding to central shaft, this spindle nose is placed in the described spindle nose hole rotationally, and the end of spindle nose constitutes a probe bar; One is used to activate described signals collecting haptic element and has the haptic element actuating mechanism that returns extensive function certainly, is arranged in the described slide block chamber, matches with the signals collecting haptic element and matches with cam bit; One probe tile, end towards pedestal substrate of this probe tile offers one and adjusts groove, this adjustment groove and described probe bar are slidingly matched, and by stop screw that probe tile is spacing on the probe bar with the form of floating, and the other end of probe tile leans out the pedestal cover plate.

In a specific embodiment of the present utility model, the opening of described slide block chamber and constitute a spring base in the middle position, described haptic element actuating mechanism comprises slide block and spring, slide block is arranged in the described slide block chamber movably, corresponding with described cam bit, on slide block, offer a spring cavity and be extended with a push pedal, push pedal is towards described pedestal and be insinuated into described push pedal hole, match with described signals collecting haptic element, spring is placed in the described spring cavity, one end bearing of this spring is on described spring base, and the other end of spring is bearing on the chamber wall of spring cavity.

In another specific embodiment of the present utility model, described pedestal cover plate is towards a side of pedestal and be positioned at cavity volume and constitute a pair of holding boss that corresponds to each other, constitute the elasticity film trap between the chamber wall of holding boss and cavity volume, the embedded flexure strip that is provided with of elasticity film trap, flexure strip matches with the edge of described cam bit.

In another specific embodiment of the present utility model, the middle part of the long side direction of described flexure strip constitutes an arc and arches upward, and the edge of described cam bit constitutes the cam bit recess, and arc arches upward and matches with the cam bit recess.

In another specific embodiment of the present utility model, be equipped with a bottom plate that is used for described signal picker sealing on the described pedestal and at position corresponding to described signal picker chamber.

Also have in the specific embodiment of the present utility model, described signal picker constitutes an alignment pin in the chamber, offer the corresponding alignment pin resigning hole of a position and alignment pin on the described signal picker, offer position and the corresponding dowel hole of alignment pin resigning hole on the described bottom plate, described alignment pin probes in the dowel hole through the alignment pin resigning hole bottom plate is positioned on the described signal picker chamber.

More of the present utility model and in specific embodiment, be extended with one first steady pin and one second steady pin on the described pedestal cover plate and towards a side of described pedestal, first, second steady pin corresponds to each other, wherein, first steady pin is positioned at a side of the accent of described slide block chamber, and second steady pin is positioned at the opposite side of slide block chamber, on pedestal and offering one first fixed pin holes corresponding to the position of first steady pin, on described signal picker, offer corresponding second fixed pin holes of a position and second steady pin, offer the same and corresponding steady pin resigning hole of second steady pin in position in the bottom in signal picker chamber, first steady pin is inserted in first fixed pin holes, and second steady pin is inserted in second fixed pin holes.

In of the present utility model and then specific embodiment, described signal picker is microswitch or travel switch.

Of the present utility model again more and in specific embodiment, described adjustment groove is the strip shape groove that two ends respectively constitute arc surface.

In again of the present utility model and then specific embodiment, the end that described probe tile leans out described pedestal cover plate constitutes the step-like of zigzag.

The technical scheme that the utility model provides the signals collecting haptic element can not occur acting on enduringly owing to adopted the haptic element actuating mechanism, therefore can avoid spurious alarm; Reduced the number of parts with respect to prior art, made structure more become terse, provided convenience for manufacturing, installation and maintenance; Owing on the exploration faller gill, offered the adjustment groove, make probe tile be tending towards floating type, thereby the power of actuated probe sheet significantly reduce, help floating cloth and activate, and probe tile can be in the scope of adjusting groove be adjusted according to needing.

Description of drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is installed on the schematic diagram on the head of computer plain flat knitter for the utility model structure.

Fig. 3 is an application examples schematic diagram of the present utility model.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Please be referring to Fig. 1, the state of Fig. 1 is opposite with the actual state (state that Fig. 2 shows) that uses, and this for the ease of clear announcement the utility model structure is.Provided a pedestal 1, a side of this pedestal 1 be Fig. 1 location status towards on a side (under the user mode towards under a side) be concaved with a signal picker chamber 11, side (right side shown in Figure 1) in signal picker chamber 11 offers a push pedal hole 111 of running through pedestal 1, and this push pedal hole 111 also can be described as the push pedal slot to make way.On pedestal 1, say that more properly the position placed in the middle (is example with the shown position state) on the right side of pedestal 1 offers a central shaft hole 12, and offer first fixing hole 13 and a screw hole 14 at opposite side.

A signal picker 2 is set in the aforesaid signal picker chamber 11, the signals collecting haptic element 21 of this signal picker 2 is corresponding to push pedal hole 111, signal picker 2 is electrically connected by the controller of circuit 22 with computer plain flat knitter, offers an alignment pin resigning hole 23 and one second fixed shaft hole 24 on the body of signal picker 2.Signal picker 2 both can use microswitch, also can use travel switch, and present embodiment is selected and used microswitch.

Cover with bottom plate 112 lids after in signal picker 2 is installed on signal picker chamber 11,, on bottom plate 112, offer a dowel hole 1121 and one the 3rd fixed pin holes 1122 so that make signal picker 2 be in the state of protecting that covers.By shown in Figure 1, extension constitutes an alignment pin 113 on the diapire in signal picker chamber 11, and this alignment pin 113 is placed in the dowel hole 1121 through alignment pin resigning hole 23, so that make bottom plate 23 be positioned signal picker chamber 11.

Fig. 1 has provided the pedestal cover plate 3 that promptly is connected with pedestal 1 that matches with pedestal 1, this pedestal cover plate 3 constitutes cavity volume 31 towards a side of pedestal 1, and the two ends on a long limit of this cavity volume 31 respectively have a holding boss 36, make by the existence of holding boss 36 and constitute an elasticity film trap 311 between the inwall of cavity volume 31 and the holding boss 36, at elasticity film trap 311 interpolation embedding flexure strips 3111, and constitute an arc at the middle part of flexure strip 3111 and arch upward 31111, arc arches upward 31111 towards slide block chamber 32, slide block chamber 32 is formed in a side of cavity volume, constitutes a spring base 321 at the opening of slide block chamber 32 and in the middle position.Offer a spindle nose hole 33 in cavity volume 31, this spindle nose hole 33 is between slide block chamber 32 and flexure strip 3111.On pedestal cover plate 3 and towards a side of pedestal 1, be extended with one first steady pin 34 and one second steady pin, 35, the first steady pins 34 a side, and second steady pin 35 is corresponding to the opposite side of slide block chamber 32 corresponding to slide block chamber 32.Wherein, first steady pin 34 is inserted in aforesaid first fixed pin holes 13, and steady pin resigning hole and second fixed pin holes 24 and be placed in before want this three fixed pin holes 1122 in of second steady pin 35 through being opened in 11 bottoms, signal picker chamber, thereby it is pedestal cover plate 3 is matched with pedestal 1, and fixing together with bottom plate 112.

Cam bit 4 is arranged in the cavity volume 31, this cam bit 4 is towards a side of pedestal 1 and occupy the middle part and be extended with a central shaft 41, and cam bit 4 is towards a side of pedestal cover plate 3 and occupy the middle part equally and be extended with a spindle nose 42, the lower end of spindle nose 42 is formed with a probe bar 421, and the cam edge recess 43 of cam 4 and aforesaid arc arch upward and 31111 match.By Fig. 1 signal, central shaft 41 probes in the aforesaid central shaft hole 12, and spindle nose 42 is placed in the spindle nose hole 33.

Haptic element actuating mechanism 5 comprises a slide block 51 and a spring 52, slide block 51 is located in the aforesaid slide block chamber 32 slidably, on slide block 51, offer a spring cavity 511, and extension constitutes a push pedal 512, spring 52 is placed in the spring cavity 511, one end bearing of this spring 52 is on aforesaid spring base 321, and the other end is bearing on the chamber wall of spring cavity 511.Aforesaid push pedal 512 probes in the push pedal hole 111, matches with the signals collecting haptic element 21 of signal picker 2.

Probe tile 6 offers the adjustment groove 61 that two ends respectively constitute arc surface and are tending towards strip shape towards an end of pedestal cover plate 3, by stop screw 611 and add packing ring 612 through adjusting groove 61 and revolve and stop screw hole 422(Fig. 2 on the bottom face that is opened in spindle nose 42 showing) and probe tile 6 is defined on the pedestal cover plate 3 with the form of floating, and probe tile 6 is corresponding between a pair of position-limit foot 37, a pair of position-limit foot 37 is formed on the pedestal cover plate 3, that is to say that the motion of probe tile 6 is limited between a pair of position-limit foot 37.

Ask for an interview Fig. 2, on the head 7 of computer plain flat knitter, be screwed one piece of L shaped holder 8, and on holder 5, set one and adjust seat 81, on adjustment seat 81, offer a pair of parallel regulating tank 811, to adjust 81 in the position of regulating tank 811 and be connected by adjusting a seat hold-down screw 8111 with holder 8, and by screw 141 and screw hole 14 pedestal 1 is fixed with adjusting seat 81, thereby the safety alarm device by structure shown in Figure 1 of the present utility model is installed on the head 7.

Ask for an interview Fig. 3 and in conjunction with Fig. 1 and Fig. 2, when the knitting mechanism as computer plain flat knitter carries out duty, head 7 reciprocating motions, be positioned at the knitting needle 91 on the needle plate 9 in case damage, because the knitting needle of this damage remains static, promptly can not be in the needle tray of needle plate 9 stretching motion, but stretch out the needle plate mouth of needle plate 9, so the knitting needle 91 that damages just contacts with probe tile 6 of the present utility model, makes probe tile 6 deflections.Because probe tile 6 matches with the probe bar 421 of the spindle nose 42 of cam bit 4; therefore drive spindle nose 42 rotations; thereby the rotation by cam bit 4 promotes the direction slip of slide block 42 towards spring base 321; meanwhile; spread to signals collecting haptic element 21 by push pedal 512; signal picker 2 circuit are connected; controller sends signal and shuts down; enter work again after waiting to get rid of the knitting needle of promptly replacing damage; when entering work; owing to the effect of spring 52 makes slide block 51 automatically revert to the origin-location, push pedal 512 automatically discharges signals collecting haptic element 21.

When abnormal case to braided fabric 10 tractions appears in the secondary roller 20 that is used to guide braided fabric 10, phenomenon often appears floating in braided fabric 10, as everyone knows, because braided fabric is very soft, therefore be difficult to touch probe tile 6 under normal conditions, yet because the utility model structure, thus can make braided fabric 10 easily actuated probe sheet 6 and producing report to the police.Same reason, float and the foreign material that fly yarn and so on also easily can actuated probe sheets 6 and report to the police

Claims

1. the safety alarm device of a computer plain flat knitter is characterized in that comprising a pedestal (1), and this pedestal (1) has a signal picker chamber (11), and a side in this signal picker chamber (11) offers a push pedal hole (111); One signal picker (2) is arranged in the signal picker chamber (11), and is electrically connected by the controller of circuit and computer plain flat knitter, and the signals collecting haptic element (21) of this signal picker (2) is corresponding to described push pedal hole (111); One pedestal cover plate (3), match with pedestal (1), this pedestal cover plate (3) has cavity volume (31) towards a side of pedestal (1), position placed in the middle in a side of cavity volume (31) is concaved with a slide block chamber (32), and also offer a spindle nose hole (33) in the cavity volume (31) of pedestal cover plate (3), spindle nose hole (33) are corresponding with described slide block chamber (32); One cam bit (4), this cam bit (4) has a central shaft (41) towards a side of described pedestal (1), this central shaft (41) rotates and is arranged in the central shaft hole (12) that is opened on the pedestal (1), and cam bit (4) has a spindle nose (42) towards a side of pedestal cover plate (3) and at the position corresponding to central shaft (41), this spindle nose (42) is placed in the described spindle nose hole (33) rotationally, and the end of spindle nose (42) constitutes a probe bar (421); One is used to activate described signals collecting haptic element (21) and has the haptic element actuating mechanism (5) that returns extensive function certainly, is arranged in the described slide block chamber (32), matches with signals collecting haptic element (21) and matches with cam bit (4); One probe tile (6), end towards pedestal substrate (3) of this probe tile (6) offers one and adjusts groove (61), this adjustment groove (61) is slidingly matched with described probe bar (421), and by stop screw (611) that probe tile (6) is spacing on probe bar (421) with the form of floating, the other end of probe tile (6) leans out pedestal cover plate (3).

2. the safety alarm device of computer plain flat knitter according to claim 1, it is characterized in that the opening of described slide block chamber (32) and constitute a spring base (321) in the middle position, described haptic element actuating mechanism (5) comprises slide block (51) and spring (52), slide block (51) is arranged in the described slide block chamber (32) movably, corresponding with described cam bit (4), on slide block (51), offer a spring cavity (511) and be extended with a push pedal (512), push pedal (512) is towards described pedestal (11) and be insinuated into described push pedal hole (111), match with described signals collecting haptic element (21), spring (52) is placed in the described spring cavity (511), one end bearing of this spring (52) is on described spring base (321), and the other end of spring (52) is bearing on the chamber wall of spring cavity (511).

3. the safety alarm device of computer plain flat knitter according to claim 1, it is characterized in that described pedestal cover plate (3) is towards a side of pedestal (1) and be positioned at cavity volume (31) and constitute a pair of holding boss (36) that corresponds to each other, constitute elasticity film trap (311) between the chamber wall of holding boss (36) and cavity volume (31), be embedded with flexure strip (3111) in the elasticity film trap (311), flexure strip (3111) matches with the edge of described cam bit (4).

4. the safety alarm device of computer plain flat knitter according to claim 3, the middle part that it is characterized in that the long side direction of described flexure strip (3111) constitutes an arc arch upward (31111), the edge of described cam bit (4) constitutes cam bit recess (43), arc arch upward (31111) match with cam bit recess (43).

5. the safety alarm device of computer plain flat knitter according to claim 1 is characterized in that being equipped with on the described pedestal (1) and at the position corresponding to described signal picker chamber (11) bottom plate (112) that is used for described signal picker (2) sealing.

6. the safety alarm device of computer plain flat knitter according to claim 5, it is characterized in that constituting in the described signal picker chamber (11) alignment pin (113), offer a position and the corresponding alignment pin resigning hole of alignment pin (113) (23) on the described signal picker (2), offer position and the corresponding dowel hole of alignment pin resigning hole (23) (1121) on the described bottom plate (112), described alignment pin (113) is positioned bottom plate (112) on the described signal picker chamber (11) in alignment pin resigning hole (23) probes into dowel hole (1121).

7. the safety alarm device of computer plain flat knitter according to claim 1, it is characterized in that described pedestal cover plate (3) is gone up and be extended with one first steady pin (34) and one second steady pin (35) towards a side of described pedestal (1), first, second steady pin (34,35) correspond to each other, wherein, first steady pin (34) is positioned at a side of the accent of described slide block chamber (32), and second steady pin (35) is positioned at the opposite side of slide block chamber (32), go up and offering one first fixed pin holes (13) corresponding to the position of first steady pin (34) at pedestal (1), on described signal picker (2), offer a position and corresponding second fixed pin holes of second steady pin (35) (24), offer the same and corresponding steady pin resigning hole of second steady pin (35) in position in the bottom of signal picker chamber (11), first steady pin (34) is inserted in first fixed pin holes (13), and second steady pin (35) is inserted in second fixed pin holes (24).

8. according to the safety alarm device of claim 1 or the described computer plain flat knitter of the arbitrary claim of 5-7, it is characterized in that described signal picker (2) is microswitch or travel switch.

9. the safety alarm device of computer plain flat knitter according to claim 1 is characterized in that described adjustment groove (61) respectively constitutes the strip shape groove of arc surface for two ends.

10. the safety alarm device of computer plain flat knitter according to claim 1 is characterized in that the end that described probe tile (6) leans out described pedestal cover plate (3) constitutes the step-like of zigzag.