CN101322997A - Automatic feeding mechanism of punching machine - Google Patents

Abstract

An automatic feed mechanism of a punch belongs to the technical field of a punch component, which includes a pair of roller frames that are oppositely arranged and used for being arranged on a punch working platform; a pair of a first roller and a second roller are rotatablely arranged on the pair of roller frames; the first roller shaft of the first roller shaft is fixedly provided with a first gear; while the roller shaft of the second roller is fixedly provided with a second gear; the first gear and the second gear are mutually engaged; the automatic feed mechanism of a punch also includes a motor which is connected with the second roller shaft of the second roller in a transmission way as well as a pair of roller carrying devices correspondingly arranged at the top parts of the pair of roller frames and connected with the first roller. The automatic feed mechanism of a punch has the advantages of being beneficial to protecting a thin belt, not only being helpful to saving materials, but also being capable of ensuring the processing efficiency; the integral structure of the automatic feed mechanism of a punch is simple.

Description

Automatic feeding mechanism of punching machine

Technical field

The invention belongs to punch press component technology field, be specifically related to a kind of automatic feeding mechanism of punching machine.

Background technology

For the workpiece that the blank punching out independent of each other one by one with routine becomes to have given shape, as if need on punch press, not be equipped with feed mechanism, because can realize by workman's free-hand operation.Here alleged free-hand operation is meant by operating personnel blank is delivered between the upper and lower mould on the punch press one by one, yet for those continuous punching out workpiece of strip that is pre-formed coil shape, the effect of feed mechanism is indispensable.Because if feed by hand, because the amount sent into or claim that the length of sending into objectively is difficult to hold at every turn at every turn, if the strip of once sending into too much (long), can make strip redundant and cause waste by the workman; Otherwise, if once feed very few (too short), the workpiece that then can't be shaped, thus cause the problem of not only wasting strip but also causing workpiece to be scrapped.Therefore, have only the pitch that the feed of strip is promptly sent at every turn to reach and the action of each punching press of punch press and the required material degree of tacit agreement mutually, could both unlikely strip redundancy, unlikely again strip is very few and use and embody economical with materials and satisfy high efficiency punching press requirement, be the silver-bearing copper band punching out corresponding devices of 0.05～0.3mm for the very expensive for example thickness of some prices of raw and semifnished materials particularly, feed mechanism whether rational in infrastructure directly involves the speed that the utilization rate that whether can improve material to greatest extent and punching out are shaped.

The applicant retrieves, and has searched two pieces of documents, and one is Chinese patent notification number CN2031735U, has introduced automatic feeding mechanism of punching machine, and the operation principle of this mechanism has been made specific descriptions at the 1st page of the 13rd～19 row of its specification.Make a general survey of this patented technology scheme, frictionally drives the wire rod feeding, specifically is by wedge bruising roller, and then by roller compressing or release wire rod.Deficiency has two, the one, the thickness of mentioning in the above for the applicant only is for the strip (also can claim the paper tinsel band) of 0.05～0.3mm, this mechanism can't be suitable for, because if roller (patent claims steel ball) is excessive to the power of seizing on both sides by the arms of strip, then can cause undermining strip, if and the power of seizing on both sides by the arms is too small, then do not have the effect of seizing on both sides by the arms; The 2nd, the pair of rollers wire rod whether seize on both sides by the arms be by spring be used for take on because fatigue phenomenon appears in the maximum weak property of spring easily, therefore occur tiredly when spring, the effect of its pair roller is all gone so, and then roller can't be seized on both sides by the arms wire rod.

Two automatic feeding mechanism of punching machine of being recommended for Chinese patent notification number CN2123389U, the technique effect got of this patented technology scheme institute's phase are to prevent from that strip from emitting too much promptly to avoid the strip redundancy, so that strip has certain force of strain.One of shortcoming, strip flex point before entering the drift of punch press is many, has the anxiety easily undermine strip, has flex point because the meagre silver-bearing copper band of mentioning for the applicant be must guard against in the above, otherwise the situation of crimping and so on can occur; Two because strip is withdrawn into the traveling process of punch press punching out from the ring body, the angle that needs to do 90 ° changes (Fig. 2 of this patent is to shown in Figure 4), promptly strip is from vertically becoming level, thereby is disadvantageous to the protection of strip; Three, it is the tension force control of the strip of 0.05～0.3mm that this technical scheme is not suitable for the meagre thickness of mentioning as the applicant equally in the above, because being the strip by redundancy, this patent makes a pair of inductor conducting reach motor to quit work, when the redundancy section that is to say the strip on passing one of them inductor touches another inductor, motor quits work, this just needs strip to have certain rigidity, otherwise can not touch another inductor (shown in Figure 2) in the mode of arch camber, therefore the strip of being mentioned by the applicant obviously can not satisfy this requirement; Four, overall structure is comparatively complicated.

Summary of the invention

Task of the present invention is will provide a kind of can guarantee no flex point in the traveling process of strip before entering the drift of punch press and need not to change the strip angle and help to protect strip, tension force control is effective, structure is terse automatic feeding mechanism of punching machine.

Task of the present invention is finished like this, and a kind of automatic feeding mechanism of punching machine comprises that a pair of opposite each other being used to is configured to the roller frame that the punch press workbench gets on; A pair of first, second roller is located on the described a pair of roller frame rotationally, is installed with first gear on the first roller axle of first roller, and is installed with second gear on the roller axle of second roller, and first, second gear is engaged with each other; One motor is with the second roller through-drive connection of described second roller; A pair of roller is guided and supported device, is located at the top of described a pair of roller frame respectively and connects with first roller.

In a specific embodiment of the present invention, each hub setting of two ends of the first roller axle of described first roller is on the corresponding first roller axle bed, the first roller axle bed can slide up and down to sliding fitting on the described roller frame, and the first roller axle bed is guided and supported the device connection with described roller; The two ends of the second roller axle of described second roller are located on the second roller axle bed rotationally, and the second roller axle bed is slidingly fitted on the described roller frame, and corresponding to the below of the first roller axle bed.

In another specific embodiment of the present invention, described motor is installed on the motor cabinet, and motor cabinet is fixed on the described punch press workbench.

Go back in the specific embodiment of the present invention, described motor is electrically connected by the electric control box of circuit and punch press.

In another specific embodiment of the present invention, described motor is a stepper motor.

In another specific embodiment of the present invention, described roller is guided and supported device and is comprised pull bar, elastomeric element, spanner and bearing pin, the top of the lower end of pull bar and the described first roller axle bed is fixed, the upper end of pull bar leans out the head piece of described roller frame and offers pin shaft hole, elastomeric element is set on the pull bar, one end of elastomeric element is kept out on described head piece, the other end is bearing on the first roller axle bed, and spanner connects by described bearing pin and by means of described pin shaft hole and described pull bar hinge.

More of the present invention and in specific embodiment, described spanner is constituting at least one cam with the described pull bar end that connects that is hinged mutually, and cam contacts with described head piece.

In of the present invention and then specific embodiment, described elastomeric element is a spring.

A strip guider also is equipped with of the present invention again more and in specific embodiment, in a side of described punch press workbench.

In again of the present invention and then specific embodiment, described strip guider comprises a pair of intermediate plate, base and column, and a pair of intermediate plate is located at the upper end of column by a pair of adjustment nut, and the lower end of column is fixed on the base.

Technical scheme provided by the present invention remains level and advances not have flex point and angle does not take place and change owing to guaranteeing that strip enters in the process of punch press, thereby helps protecting strip; Cooperation between first, second roller, first, second gear and the motor can realize good tension force control, and the feed that can ensure the strip of the drift implementation punching out that supplies punch press that first, second roller is introduced redundancy can not occur, not only help economical with materials, and can guarantee working (machining) efficiency; Overall structure is simple.

Description of drawings

Fig. 1 is a specific embodiment structure chart of automatic feeding mechanism of punching machine of the present invention.

Fig. 2 is the application examples schematic diagram of automatic feeding mechanism of punching machine of the present invention.

The specific embodiment

For the auditor that the makes Patent Office especially public can be well understood to structure essence of the present invention and beneficial effect more; the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail as follows; but all descriptions to embodiment all do not constitute the restriction to technical scheme of the present invention, and are any pro forma but not substantial equivalence is replaced or the vocabulary of terms notion changes and all should be considered as technical scheme scope disclosed in this invention and the prescription protection.

Please be referring to Fig. 1, it is preferred but be not the roller frame 1 that is tending towards the portal frame shape that definitely is limited to have provided a pair of shape, it is corresponding that this position to roller frame 1 keeps each other, promptly is on the same straight line, and the bottom of each roller frame 1 is fixing with the punch press workbench 81 of punch press 8 (Fig. 2 shows) with screw 12.A pair of first, second roller 2,3 is up and down matching relationship ground and is configured in rotationally separately on a pair of roller frame 1, specifically: it is on the pair of first rolls tube axle bed 211 accordingly that the pair of first rolls tube axle 21 of first roller 2 rotatably is located at by bearing, with present shown position state is example (as follows), the left end of the first roller axle 21 is stretched over outside the first roller axle bed 211, and fix first gear 4 by key, in the time of fixedly, as long as first medium pore 41 of first gear 4 is nested with on the spindle nose of the first roller axle 21, fixes with flat key again; It is on a pair of second roller axle bed 311 accordingly that a pair of second roller axle 31 of the second roller axle 3 rotatably is located at by bearing equally, the left end of the second roller axle 31 is stretched over outside the second roller axle bed 311, and fix second gear 5 by flat key, in the time of fixedly, as long as it is second medium pore 51 of second gear 5 is nested with on the spindle nose of the second roller axle 31, solid with the flat key key again.First, second gear 4,5 is engaged with each other.By shown in Figure 1, a pair of first, second roller axle bed the 211, the 311st is slidingly matched with the column of roller frame 1, for example when with the head piece 11 of roller frame 1 when pine is opened head piece hold-down screw 111 and moves apart, just pair of first rolls tube axle bed 211 can be taken first roller 2 and first gear 4 shifts out roller frame 1, the a pair of second roller axle bed 311 can be taken second roller 3 and second gear 5 shifts out roller frame 1 with example, in order to safeguarding or changing.Pair of first rolls tube axle bed 211 is guided and supported device 7 with the following a pair of roller that also will describe in detail and is connect.

Please continue referring to Fig. 1, one motor 6 is fixed on the punch press workbench 81 by motor cabinet 63, specifically: earlier that motor cabinet 63 usefulness bolts 631 are fixing with punch press workbench 81, it is fixing with motor cabinet 63 to take motor 61 by one group of (Fig. 1 is illustrated as four) fixed bar 62 again, the power output shaft 61 usefulness shaft couplings 611 of motor 6 and the right-hand member fixed connection of the already mentioned second roller axle 31 in front.Motor 6 adopts stepper motor, and for example adopting the model by the production and sales of Jiangsu Province, China Jintan Sihai Motor And Electrical Appliances Factory is 85BYGH type stepper motor, and the electric control box that is carried by circuit and punch press is electrically connected.

Please still referring to Fig. 1, provided that a pair of roller that is used for connecting with pair of first rolls tube axle bed 211 is is respectively guided and supported the preferred of device 7 but not the concrete structure that is limited to, each roller is guided and supported device 7 and is respectively comprised pull bar 71, elastomeric element 72, spanner 73 and bearing pin 74, position placed in the middle, the top of the lower end of pull bar 71 and the first roller axle bed 211 is fixed, and the upper end of pull bar 71 is passed the tie rod hole that is produced on head piece 11 middle parts in advance and is promptly leant out head piece 11, and offer a pin shaft hole 711, elastomeric element 72 adopts spring, be nested with middle part at pull bar 71, the upper end of elastomeric element 72 contacts with head piece 11 and promptly is bearing on the head piece 11, and the lower end of elastomeric element 72 is bearing on the first roller axle bed 211, spanner 73 is processed with pair of cams 731 with the end that pull bar 71 is connected, offer axis hole 7311 at cam 731 positions, wear and axis hole 7311 and pin shaft hole 711 just can link the upper end of spanner 73 with pull bar 71 with bearing pin 74.The function that roller is guided and supported device 7 is to provide convenience for strip 10 passes between first, second roller 2,3.For example, when will be with strip to be punched 10 from first, second roller 2, when a side of 3 causes opposite side, so as long as upwards pull exhibition spanner 73, under the effect of cam 731, make on the pull bar 71 and carry, elastomeric element 72 compressions this moment, because pull bar 71 is connected mutually with the first roller axle bed 211, therefore when pull bar 71 is up, just drive promptly guiding and supporting on the first roller axle bed 211 by pull bar 71 and move, take on first roller 2 by the first roller axle bed 211 and to move, make first, second roller 2, produce the space between 3, by the passage of this space as extradition strip 10, after strip 10 extraditions finish, pull exhibition spanner 71 to previous rightabout, make first roller 2 return to the origin-location, by first, second roller 2,3 cooperatively interact seizes strip 10 on both sides by the arms.The notion of above-mentioned extradition is meant introduces strip 10 and draw from opposite side from a side of first, second roller 2,3.

Please consult Fig. 2, in the figure, the applicant has illustrated the partial structurtes of the punch press 8 that industry is not strange, the action button panel 86 of electric control box on the lathe bed 81 of punch press 8, is equipped with, on the drift 82 of punch press 8, mould bases 83 is installed, die head 831 as patrix is installed on the mould bases 83, is carrier and below corresponding to mould bases 83, die holder 84 is installed, settle the counterdie 841 that matches with die head 831 on the die holder 84 with punch press workbench 81.

Please continue referring to Fig. 2, with described die holder 84 is benchmark, on punch press workbench 81 automatic feeding mechanism of punching machine of the present invention of the left side installation of die holder 84 by structure shown in Figure 1, and on the right side of die holder 84 a supporting strip guider 9, this strip guider 9 also can be described as the strip transition apparatus, and strip guider 9 both can be directly arranged on the punch press workbench 81, also can be located at separately on the terrace, present embodiment is selected the latter.Preferred but not the structure strip guider 9 that is limited to is: a pair of intermediate plate 91 is positioned at the upper end of column 93 by a pair of adjustment nut 911 with aspectant form; and the lower end of column 93 is fixed on the base 92; aspectant side surface at a pair of intermediate plate 91 also can be installed with felt-cloth, is used to protect strip 10.

The applicant sketches use of the present invention in conjunction with Fig. 1, Fig. 2, as shown in Figure 2, to form between a pair of intermediate plate 91 and die head 831 and counterdie 841 of front end tying-in strip guider 9 of strip 10 of coil shape, and and then between first, second roller 2,3 of tying-in, guide and support device 7 by roller and will carry on first roller 2 this moment, after treating that strip 10 passes through first, second roller 2,3, guide and support device 7 by the operation roller first roller 2 is resetted, strip 10 is seized on both sides by the arms to cooperate second roller 3.When punch press 8 enters duty, motor 6 also enters duty, power output shaft 61 by motor 6 drives 31 rotations of the second roller axle, since second gear 5 on the second roller axle 31 be be fixed on the first roller axle 21 on first gear 4 be meshed, therefore, first, second roller 2,3 is realized rotation in opposite directions, and strip 10 is moved towards the direction of arrow row of anticipating shown in Fig. 2.Because motor 6 is a stepper motor, therefore, whenever drift 82 dives once, motor 6 action once that is to say when drift 82 is up motor 6 actions, guide between die head 831 and the counterdie 841 treating that strip 10 that punching out is shaped is dragged, so the tension force of strip 10 has obtained guarantee, and the degree of at every turn dragging the strip 10 that draws neither redundancy can occur, also can not cause shortage.

The applicant is configured in said structure on the common punch press and is that the silver-bearing copper paper tinsel band of 0.1mm has carried out towards the part test to thickness under the state of maintaining secrecy, and the result shows that the utilization rate of material has been compared significant raising with manual feeding.

Claims (10)

1, a kind of automatic feeding mechanism of punching machine is characterized in that comprising that a pair of opposite each other being used to is configured to the roller frame (1) that punch press workbench (81) gets on; A pair of first, second roller (2,3), be located at rotationally on the described a pair of roller frame (1), be installed with first gear (4) on the first roller axle (21) of first roller (2), and being installed with second gear (5) on the roller axle (31) of second roller (3), first, second gear (4,5) is engaged with each other; One motor (6) is with second roller axle (31) transmission connection of described second roller (3); A pair of roller is guided and supported device (7), is located at the top of described a pair of roller frame (1) respectively and connects with first roller (2).

2, automatic feeding mechanism of punching machine according to claim 1, each hub setting of two ends of the first roller axle (21) that it is characterized in that described first roller (2) is on the corresponding first roller axle bed (211), the first roller axle bed (211) can slide up and down to sliding fitting on the described roller frame (1), and the first roller axle bed (211) is guided and supported device (7) connection with described roller; The two ends of the second roller axle (31) of described second roller (3) are located on the second roller axle bed (311) rotationally, and the second roller axle bed (311) is slidingly fitted on the described roller frame (1), and corresponding to the below of the first roller axle bed (211).

3, automatic feeding mechanism of punching machine according to claim 1 it is characterized in that described motor (6) is installed on the motor cabinet (63), and motor cabinet (63) is fixed on the described punch press workbench (81).

4,, it is characterized in that described motor (6) is electrically connected by the electric control box of circuit and punch press according to claim 1 or 3 described automatic feeding mechanism of punching machine.

5, automatic feeding mechanism of punching machine according to claim 4 is characterized in that described motor (6) is a stepper motor.

6, automatic feeding mechanism of punching machine according to claim 2, it is characterized in that described roller guides and supports device (7) and comprise pull bar (71), elastomeric element (72), spanner (73) and bearing pin (74), the top of the lower end of pull bar (71) and the described first roller axle bed (211) is fixed, the upper end of pull bar (71) leans out the head piece (11) of described roller frame (1) and offers pin shaft hole (711), elastomeric element (72) is set on the pull bar (71), one end of elastomeric element (72) is kept out on described head piece (11), the other end is bearing on the first roller axle bed (211), and spanner (73) is hinged with described pull bar (71) by described bearing pin (74) and by means of described pin shaft hole (711) and connects.

7, automatic feeding mechanism of punching machine according to claim 6, it is characterized in that described spanner (73) is constituting at least one cam (731) with described pull bar (71) end that connects that is hinged mutually, cam (731) contacts with described head piece (11).

8, automatic feeding mechanism of punching machine according to claim 6 is characterized in that described elastomeric element (72) is a spring.

9, automatic feeding mechanism of punching machine according to claim 1 is characterized in that also being equipped with a strip guider (9) in a side of described punch press workbench (81).

10, automatic feeding mechanism of punching machine according to claim 9, it is characterized in that described strip guider (9) comprises a pair of intermediate plate (91), base (92) and column (93), a pair of intermediate plate (91) is located at the upper end of column (93) by a pair of adjustment nut (911), and the lower end of column (93) is fixed on the base (92).

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