CN2483411Y - Needle holder having open type needle slot - Google Patents

Abstract

Provided is a needle table with an open needle fixation slot. One end of the needle table is combined with the machine needle axis and the other end is connected fixedly with the machine needle. The utility model is characterized in that the needle table is combined into being by the table base and the cover plate. The open needle fixation slot is arranged between the table base and the cover plate. Therefore, the requirement on precision is met and the manufacture cost is greatly reduced.

Description

Pin platform with open needle slot

The utility model relates to a kind of pin platform with open needle slot, it borrows pedestal and the cover plate that has open needle slot relatively, the pin platform i.e. accurate needle slot datum level, give positioning combination for each car pin, each car pin can be positioned in the needle slot really, and cooperate with the car pin by datum level and to be fixed in the orientation, do not have any off normal improperly and deflection, reach the accuracy in the use and the convenience of making, and can reach the reduction manufacturing cost, reach the requirement of industrialization.

By the pin platform that is used at present on the Sewing machines, please cooperate shown in Fig. 6 to 9, wherein, the structure of pin platform 90 is provided with an axis hole that gets deeply stuck in 91 in the end of relative car needle shaft 10, needle shaft 10 inserts to buy car in installments, and be provided with the dead axle hole 92 of internal thread in axis hole 91 vertical direction, push against car needle shaft 10 for a dead axle bolt 93 screw-ins, so that pin platform 90 combines drive with car needle shaft 10, and in the other end of pin platform 90 setting needle tray 94, penetrate the location for each car pin 50, and the end in needle slot 94 is arranged to straight datum level 940, each car pin 50 opposing end surface then is provided with a straight datum level 51, and decide pin screw 95 in what needle slot 94 differed from that datum level 940 places vertically are provided with in addition a band internal thread shape, screw in packings for pilot pin 96 and fix each car pin 50, and the datum level 940 of the datum level 51 that makes car pin 50 and needle slot 94 certain be adjacent to the location, so that car pin 50 can be certain the location, be convenient to threading and sewing the action cooperation.

Wherein, the setting of the datum level 940 in the aforementioned conventional construction, mainly allow general user when changing device car pin 50 more, make the datum level 51 of car pin 50 penetrate and stay in surely on the datum level 940, can't intersect to prevent the correct location of car pin 50 and to collude line, and collude colluding line body bump and producing dangerous of line with interaction; Therefore, datum level 940 be provided with that the degree of accuracy must be very really, otherwise promptly have, and make car pin 50 its positional accuracies of forfeiture because of it loses the due degree of accuracy, cause having some setbacks, breaking of sewing, even produce unnecessary structural damage.

Moreover, owing to borrow car needle shaft 10 very quick through the speed that pin platform 90 drives each car pin 50, each car pin 50 must keep and absolute parallel of car needle shaft 10, otherwise each car pin 50 pierces through the hole of cloth cover and can therefore strengthen, have a strong impact on the quality of sewing, easilier produce collision improperly with the line body that colludes that cooperates each car pin 50 to sew to collude line, cause the danger of fracture, so the parallel accuracy of each car pin 50 and car needle shaft 10 must be very accurately, otherwise very easily produce above-mentioned shortcoming, so when the wall of needle slot 94 datum levels 940 of each pin platform 90 of making and both sides thereof, must be very accurately, yet existing pin platform 90 is made, and the inconvenience part is but arranged.

Please cooperate and consult Fig. 6, shown in 7, because known pin platform 90 must be provided with the needle slot 94 that array is parallel to each other, and design for enclosed construction because of needle slot 94, with shown in Figure 7, because its opening direction is on Y direction, so withdrawing pattern direction during its mould molding, only can be on Y-axis, promptly must parallel with the direction of needle slot 94, the draft angle relation that needs when so but causing needle slot 94 owing to withdrawing pattern promptly need be the design of tapering along the Y-axis stripping direction, line on Y direction or face, form that promptly can't the keeping parallelism Y-axis and form draw taper, so it is bigger to make needle slot 94 form inlet, and more toward the interior tapering situation that just heals little.Therefore must be after moulding, impose the calibration processing of secondary, can repair the wall degree of accuracy of needle slot 94 datum levels 940 and both sides thereof, and its calibration processing then is subject under needle slot 94 condition that non-wholecircle type is poroid and the aperture is very little, it can't be done fraising and proofread and correct the processing that waits other modes, only can calibrate the operation of processing with discharge processing.

And in the calibration processing operation process of needle slot discharge processing, but there is of such a size shortcoming to exist, please cooperate Fig. 8, shown in 9, in the process of discharge processing, it is that the sparking electrode of W can increase because of the stroke L of discharge for width, and loss gradually, its sparking electrode can diminish thereupon, be that its width w can diminish with the prolongation of stroke L and becomes width w ', it is the bore that the opening bore of its needle slot 94 still can be slightly larger than the bottom, the most important thing is, the datum level 940 of its needle slot 94 also with meeting produce certain gradient, so, when pin platform 90 assembling car pins 50, after the deciding of its pin platform 90 locked pilot pin 96 on the pin screw 95, its pilot pin 96 roof pressures are in the car pin 50 of needle slot 94, make the datum level 51 of car pin 50 be affixed to the datum level 940 of needle slot 94, the datum level 51 of its car pin 50 promptly is affixed on former datum level 940 with gradient, the 50 inevitable generations thereupon of car pin are tilted, and the wall of datum level 940 both sides also adds the export license in man-hour because of its discharge, and produce identical gradient, so, car pin 50 promptly can't be certain be positioned on the pin platform 90, and be difficult to reach requirement with car needle shaft 10 keeping parallelism precisions, so, in the process of sewing, must cause the thing of aforementioned affect sewing quality, even car pin 50 cooperates the line body that colludes of car pins 50 actions to have the incident of improper bump to give birth to, even produces the infringement and the danger of member.

And, on the whole method for making, all must be through process needle slot discharge slowly processing, pin platform 90 dependency structures via method for making like this, not only, can't reach the requirement of high accuracy because of the trueness error that export license caused, more make pin platform 90 and must do discharge calibration processing needle slot 94 because of it, and the discharge process very slowly, must carry out the calibration processing operation of needle slot 94 more one by one, speed of its calibration processing is slowed down more at double, and in addition first-order error is promptly accumulated in the processing of each needle slot 9 again, if be that needle slot 94 quantity of example are five groups with this figure, five processing promptly has five error accumulations, not only, make each needle slot 94 itself have error, more make 94 of each needle slots have the accumulated error that strengthens one by one, the quality of its calibration is diminished relatively, more increase the time and the energy that processing is wasted,, can't reach economic benefit with its manufacturing cost that is spent.

The purpose of this utility model is to provide a kind of pin platform with open needle slot, by pedestal that is provided with open needle slot relatively and covering plate structure design, whole making is raised the efficiency, and, the operation of overall structure electrode discharge calibration processing, can guarantee integrally-built benchmark degree, reach the required precision of use, and significantly reduce the cost of making.

The purpose of this utility model is achieved in that a kind of pin platform with open needle slot, pin platform one end combines with the car needle shaft, the affixed car pin of the other end, pin platform are by pedestal and cover plate be combined into, and are provided with open needle slot between pedestal and cover plate relatively.

The buy car in installments two ends, end of pin setting of described pedestal are provided with open needle slot with respect to first and second cover plate, the bottom that this needle slot is straight is datum level, and pedestal is with respect to the needle slot of the second cover plate end face, it also is open cell body, decide the pin screw and on the vertical direction of this needle slot, be provided with in addition, and in needle slot being set and decide to be provided with in addition outside the pin screw a fixing perforation, and the other end is provided with a fixing threaded hole and be combined into one with cooperation gim peg and cover plate.

The needle slot end face that the relative pedestal of described first cover plate has a datum level also is provided with the needle slot of relative populations, and be equipped with barrier sheet in this needle slot appropriate location, and cooperate with the car pin, what be provided with relative inner bolt hole form on each needle slot vertical direction in addition decides the pin screw, and screw in it and decide pintle, and it is aforementionedly relatively decided pin screw place and is provided with in addition and decides pintle perforation, and in relative pedestal fixedly perforation place be provided with fixing threaded hole in addition, and cover plate holds the fixing threaded hole place of stretching to relative pedestal to be provided with the fixedly perforation of perforation form in addition, pass gim peg in it, and this gim peg screws in fixing threaded hole.

The needle slot place of the relative pedestal of described second cover plate is provided with the needle slot with datum level, and cooperates with relative car pin, and fixedly perforation place of pedestal is provided with fixing perforation in addition relatively, and the cover plate other end is provided with fixing perforation.

Owing to adopt such scheme: reach the required precision of use, and significantly reduce the cost of making.

Make your juror can further understand structure of the present utility model, the feature purpose, now with as after preferred embodiment attached with graphic detailed description as the back:

Fig. 1 stero decomposing schematic representation of the present utility model.

Fig. 2 each member combination generalized section of the present utility model.

Fig. 3 pin platform of the present utility model makes up positive floor map.

Fig. 4 pin platform combination of the present utility model schematic perspective view.

Fig. 5 open needle slot demoulding stereoscopic motion schematic diagram of the present utility model.

The schematic perspective view of the known pin platform of Fig. 6.

The known closed needle slot demoulding schematic perspective view of Fig. 7.

The local enlarged diagram of pin platform needle slot that Fig. 8 is known.

The known pin platform of Fig. 9 needle slot cooperates partly generalized section with the car pin in datum level.

Please cooperate and consult shown in Fig. 1 to 4, the utility model is made by pin platform A overall structure, have two groups of each tool two and three needle slots respectively as shown in Figure 1, and the structural form that is connected, be that its pin platform A structure becomes pedestal 20 and first and second cover plate 30,40 with open needle slot, when making datum level 240,410 moulding of each needle slot 24,31,41, perpendicular with the withdrawing pattern direction, and can mold accurate straight form, need not to calibrate separately again processing.

Wherein, the structure of pin platform A comprises having a pedestal 20, its pedestal 20 combines with car needle shaft 10, and first and second cover plate 30,40 that is provided with relatively and mutually combines and be integral in both ends of the surface, make open needle slot structure relative on pedestal 20 and first and second cover plate 30,40 involutory mutually, becoming the end that pin 50 has a datum level 51 of can buying car in installments stretches into therebetween, and cooperate fixing, make pin platform A form structure with two groups of needle slots, and it is respectively organized needle slot and has two or three needle slots respectively, and the structural form that fuses.

Its pedestal 20 has axis hole 21 with respect to car needle shaft 10 ends, dead axle hole 22 and dead axle bolt 23, be fixed in the bottom of car needle shaft 10 with cooperation, and it is characterized in that: pedestal 20 is bought car in installments both sides, end that pin 50 is provided with respect to first, two cover plates 30,40 places are provided with open needle slot 24, its needle slot 24 with respect to first cover plate 30 is provided with and is open shape, and setting is straight form, and top, the form that the bottom connects, its needle slot 24 straight bottoms are datum level 240, and with respect to the needle slot 24 of second cover plate, 40 end faces, it also is open semicircle cell body, and on the vertical direction of this semicircle needle slot 24, be provided with the tool internal thread in addition decide pin screw 25, and in needle slot 24 being set and deciding outside pin screw 25 scopes, other is provided with a fixing perforation 26, to cooperate relative structure and first, two cover plates 30,40 combinations, and be provided with a fixing threaded hole 27 in the other end place, so that first, second cover plate 30, after 40 combinations, screw in relative structure and be combined into one.

First cover plate 30 is a L-shaped member, its relative pedestal 20 has needle slot 24 end faces of datum level 240, also be provided with the semicircle needle slot 31 of relative populations, and be equipped with barrier sheet 310 in these needle slot 31 appropriate locations, pin 50 cooperations are placed restrictions on to buy car in installments, so that car pin 50 keeps certain extension elongation, and be provided with relative inner bolt hole form on its each needle slot 31 vertical direction in addition decide pin screw 32, for deciding that pintle 33 screws in and with packing car pin 50, and it is aforementionedly relatively decided pin screw 25 places and is provided with in addition and decides pintle perforation 34, and be provided with a fixing threaded hole 35 in addition in relative fixed 26 places of boring a hole, and the vertical end of first cover plate 30 is stretched to the fixedly perforation 36 that relative fixed screw 27 is provided with the perforation form, passes and screw in fixing threaded hole 27 combinations for a gim peg 37.

Second cover plate 40 also is provided with the member that is a L shape, semicircle needle slot 24 places of its relative pedestal 20 are provided with the needle slot 41 with flat datum level 410, with the relative car pin 50 in location that cooperatively interacts, and its relative fixed 26 places of boring a hole are provided with a fixing perforation 42 in addition, pass for a gim peg 43, gim peg 43 passes the fixedly perforation 26 of pedestal 20 simultaneously, screws in the fixing threaded hole 35 again, makes affixed being integral that the pedestal 20 and first cover plate 30, second cover plate 40 can be certain in this end; And second cover plate, 40 vertical end are provided with a fixing perforation 44, for aforesaid gim peg 37 in passing affixed being integral that first cover plate, 30 fixing perforation first cover plates 30, second cover plate 40 can be certain in this end; And second cover plate, 40 vertical end are provided with a fixing perforation 44, and in passing the 30 fixing perforation 36 of first cover plate, row passes fixing perforation 44 again, screws in the fixing threaded hole 27 again, is combined into one for aforesaid gim peg 37.

As previously mentioned, the datum level 240,410 of needle slot 24,31,41 of the present utility model forms open fluting form, please cooperate shown in Figure 5, when each molding component, its withdrawing pattern direction is the Z-direction shown in the drawing, therefore, X-axis and Y direction all can keep straight line, only must on Z-direction, form a due draft, so, each on withdrawing pattern dimension direction do not decided pin and increased datum level 240,410 and can keep straight state, but and straight forming goes out the needle slot datum level 240,410 of high accurancy and precision.

In addition, also can mold pedestal 20 and cover plate 30,40 earlier with needle slot, mode with cutting forming is molded relevant needle slot 24,31 and datum level 240,410 again, because the datum level 240,410 of the needle slot 24,41 on its pedestal 20 and each cover plate 30,40 is open hole slot, so unlikelyly when cutting forming cause any difficulty, can produce the datum level 240,410 of the same accurate needle slot 24,41 easily with mould molding.

No matter for aforementioned which kind of manufacture form, the member of its each pin platform A comprises: pedestal 20 and cover plate 30,40 etc., because its each needle slot forms an open form, so the visual different needs of datum level on each needle slot are located on the different positions, with of the present utility model graphic be example, its datum level 240,410 is located at respectively on second cover plate 40 and the pedestal 20, also the interchangeable position is provided with, promptly be located at respectively on the pedestal 20 and first cover plate 30, also can conversion setting with different needs.

Shown in Fig. 2,3,4, its pedestal 20 and first cover plate 30 and second cover plate 40 mutually combine, and mainly after three members cooperatively interact, cooperate gim peg 37,43 interlockings again, make first cover plate 30 cooperate the packing interlocking to be integral with second cover plate 40.

By the structural form of aforesaid making flow process and each member thereof, have following advantage:

1, needle slot 24,41 precision height need not the discharge calibration processing second time: because relative each datum level 240 of each mould, 410 end faces, can be in the time of the moulding of mould rheo-die-casting, finish each accurate needle slot 24,410, and because of moulding withdrawing pattern direction and each datum level 240,410 is vertical mutually, so be not subjected to the influence of draft, therefore need not again at each datum level 240,410 carry out the discharge calibration processing of secondary, after making the moulding needle slot of pin platform tool, need not the calibration processing operation that secondary imposes discharge, so can save expensive processing and manufacturing cost, more can be because of the change of production method, no longer need needle slot discharge process slowly one by one, and production efficiency is improved, reach the requirement of real industrialization.

In sum, the utility model can reach above-mentioned all function really, so the utility model should accord with the patent application important document, files an application in accordance with the law.

Claims (4)

1, a kind of pin platform with open needle slot, pin platform one end combines with the car needle shaft, and the affixed car pin of the other end is characterized in that: the pin platform is by pedestal and cover plate be combined into, and is provided with open needle slot between pedestal and cover plate relatively.

2, the pin platform with open needle slot as claimed in claim 1, it is characterized in that: the buy car in installments two ends, end of pin setting of described pedestal are provided with open needle slot with respect to first and second cover plate, the bottom that this needle slot is straight is datum level, and pedestal is with respect to the needle slot of the second cover plate end face, it also is open cell body, decide the pin screw and on the vertical direction of this needle slot, be provided with in addition, and in needle slot being set and decide to be provided with in addition outside the pin screw a fixing perforation, and the other end is provided with a fixing threaded hole and be combined into one with cooperation gim peg and cover plate.

3, pin platform with open needle slot as claimed in claim 2, it is characterized in that: the needle slot end face that the relative pedestal of described first cover plate has a datum level also is provided with the needle slot of relative populations, and be equipped with barrier sheet in this needle slot appropriate location, and cooperate with the car pin, what be provided with relative inner bolt hole form on each needle slot vertical direction in addition decides the pin screw, and screw in it and decide pintle, and it is aforementionedly relatively decided pin screw place and is provided with in addition and decides pintle perforation, and in relative pedestal fixedly perforation place be provided with fixing threaded hole in addition, and cover plate holds the fixing threaded hole place of stretching to relative pedestal to be provided with the fixedly perforation of perforation form in addition, pass gim peg in it, and this gim peg screws in fixing threaded hole.

4, the pin platform with open needle slot as claimed in claim 2, it is characterized in that: the needle slot place of the relative pedestal of described second cover plate is provided with the needle slot with datum level, and cooperate with relative car pin, and fixedly perforation place of pedestal is provided with fixing perforation in addition relatively, and the cover plate other end is provided with fixing perforation.

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