CN201214124Y - Automatic feeder for puncher with improved structure - Google Patents

Abstract

The utility model relates to an automatic punch feeding mechanism with an improved structure, which belongs to the technical field of punch matched device. The feeding mechanism comprises a pair of roller racks oppositely arranged, a first roller , a second roller, a roller driving device and a pair of roller carrying devices, wherein the pair of the first roller and the second roller is rotationally arranged on the pair of the roller racks; a first roller shaft of the first roller is fixed with a first gear, and a second roller shaft of the second roller is fixed with a second gear; the first gear and the second gear are engaged with each other; the roller driving device is used for driving the second roller to move; the roller driving device is linked with a punch mould frame of a punch and the second roller shaft; the pair of the roller carrying devices is arranged on the top of the pair of the roller rack and linked with the first roller respectively. The automatic punch feeding mechanism has the advantages of facilitating the protection of a thin strip, contributing to saving materials, ensuring the processing efficiency, and having simple integral structure.

Description

The automatic feeding mechanism of punching machine of architecture advances

Technical field

The utility model belongs to punch press corollary apparatus technical field, is specifically related to a kind of automatic feeding mechanism of punching machine of architecture advances.

Background technology

For the work that single blank punching out is become to have required form, need on punch press, not be equipped with feed mechanism usually.Yet for those continuous punching out workpiece on the strip that length is not restricted, it is essential that feed mechanism seems.Because if feed by hand,, cause waste because the amount of feeding objectively is difficult to accomplish consistently if the strip of once sending into is too much, can make the strip redundancy at every turn by the workman; Otherwise, if once send into very few, the workpiece that then can't be shaped, thus cause not only strip waste but also cause 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 corresponding to degree of material, could neither show producing the strip redundancy, not cause again that strip is very few and use and embody economical with materials and satisfy high efficiency continuous punching press requirement.Especially only 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, the economical with materials to greatest extent of directly extremely closing whether rational in infrastructure of feed mechanism.

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 utility model 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 the automatic feeding mechanism of punching machine of strip, tension force control is effective, structure is terse architecture advances.

Task of the present utility model is finished like this, a kind of automatic feeding mechanism of punching machine of architecture advances, and it comprises a pair of roller frame opposite each other; 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 second roller axle of second roller, and first, second gear is engaged with each other; One is used to order about the roller drive unit of described second roller motion, and the Punching machine mold frame of this roller drive unit and punch press and the described second roller axle connect; A pair of roller is guided and supported device, is located at the top of a pair of roller frame respectively and connects with first roller.

In a specific embodiment of the present utility model, 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, the second roller axle bed is slidingly fitted on the described roller frame, and corresponding to the below of the first roller axle bed, wherein said second roller axle and described roller drive unit connect.

In another specific embodiment of the present utility model, described roller drive unit comprises first, second connecting rod, pawl-and-gearing and torsion spring, the upper end of first connecting rod and described Punching machine mold frame connect, the last client link of lower end and second connecting rod, the lower end of second connecting rod is nested with on the described second roller axle, ratchet is hinged on second connecting rod by first jointed shaft, match with described ratchet, ratchet is fixed on the second roller axle, torsion spring is located on described first jointed shaft, and matches with described ratchet.

In another specific embodiment of the present utility model, the corresponding end of described second roller axle and described second connecting rod and ratchet constitutes the fixedly fixing step of step and ratchet of a connecting rod, described ratchet is fixed on ratchet fixedly on the step, and the lower end of described second connecting rod is nested with at connecting rod fixedly on the step.

In another specific embodiment of the present utility model, the distance between the ratchet pawl on the described ratchet is to equate with a feed of strip.

Go back in the specific embodiment of the present utility model, 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 utility model 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 utility model and then specific embodiment, described elastomeric element is a spring.

Of the present utility model again more and in specific embodiment, also be equipped with a strip guider in a side corresponding to described roller frame.

In again of the present utility model 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 utility model 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; The cooperation of first, second roller, first, second gear and roller drive unit 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 the automatic feeding mechanism of punching machine of architecture advances of the present utility model.

Fig. 2 is the application examples schematic diagram of the automatic feeding mechanism of punching machine of architecture advances of the present utility model.

The specific embodiment

For the auditor that the makes Patent Office especially public can be well understood to structure essence of the present utility model and beneficial effect more; the spy reaches embodiment in conjunction with the accompanying drawings the specific embodiment of the present utility model is described in detail as follows; but all descriptions to embodiment all do not constitute the restriction to the technical solution of the utility model, 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 the utility model 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 work top 75 of punch press 7 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 8 with the following a pair of roller that also will describe in detail and is connect.

Please continue to see Fig. 1, recommended roller drive unit 6 preferred but not that be limited to, as the upper end of the first connecting rod 61 of this roller drive unit 6 with the client link of second jointed shaft 612 with draw-bar seat 611, and the other end of draw-bar seat 611 is fixed on the Punching machine mold frame 71 of punch press 7, the lower end of first connecting rod 61 is connected with the upper end of second connecting rod 62 with the 3rd jointed shaft 613, and the lower end of second connecting rod 62 offers the first fixing stepped hole 621, first fixedly stepped hole 621 be formed in the aforesaid second roller axle 31 on connecting rod fixedly step 312 match, ratchet 63 is hinged on the nearly middle part of second connecting rod 62 by first jointed shaft 631, torsion spring 65 places on first jointed shaft 631, a torsion spring pin of torsion spring 65 is kept out on ratchet 63, this ratchet 63 matches with ratchet pawl 641 (also can claim tooth) on the ratchet 64, ratchet 64 central authorities second fixedly the ratchet on stepped hole 641 and the second roller axle 31 fixedly step 313 is fixing.Straight line between the adjacent ratchet pawl 642 on the ratchet 64 is apart from being that feed each time with by strip shown in Figure 2 10 equates.If the quantity of ratchet pawl 642 has 20, the pitch of advancing of strip 10 is 20 so, and punch press 7 work are punching out 20 times 20 times, and then ratchet 64 rotates a circle.Undoubtedly, the pitch that strip 10 is once advanced is to equate with the length dimension of the device of want punching out, based on this reason, and when the size of devices of institute's punching out changes, so, as long as change corresponding ratchet 64.When changing ratchet 64, as long as backing pin such as split pin (not shown) are dialled from the fixing backing pin hole 3121 on the step 312 of connecting rod, earlier second connecting rod 62 is recessed fixedly step 312 of connecting rod, again with ratchet 64 from ratchet fixedly step 313 withdraw from, then required ratchet 64 is alternated, and second connecting rod 62 is returned to fixedly step 312 of connecting rod.

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 8 but not the concrete structure that is limited to, each roller is guided and supported device 8 and is respectively comprised pull bar 81, elastomeric element 82, spanner 83 and bearing pin 84, position placed in the middle, the top of the lower end of pull bar 81 and the first roller axle bed 211 is fixed, and the upper end of pull bar 81 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 811, elastomeric element 82 adopts spring, be nested with middle part at pull bar 81, the upper end of elastomeric element 82 contacts with head piece 11 and promptly is bearing on the head piece 11, and the lower end of elastomeric element 82 is bearing on the first roller axle bed 211, spanner 83 is processed with pair of cams 831 with the end that pull bar 81 is connected, offer axis hole 8311 at cam 831 positions, wear and axis hole 8311 and pin shaft hole 811 just can link the upper end of spanner 83 with pull bar 81 with bearing pin 84.The function that roller is guided and supported device 8 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 83, under the effect of cam 831, make on the pull bar 81 and carry, elastomeric element 82 compressions this moment, because pull bar 81 is connected mutually with the first roller axle bed 211, therefore when pull bar 81 is up, just drive promptly guiding and supporting on the first roller axle bed 211 by pull bar 81 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 81 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 7 that industry is not strange, on the drift 72 of punch press 7, Punching machine mold frame 71 is installed, die head 73 as patrix is installed on the Punching machine mold frame 71, work top 75 with punch press 7 is carrier and below corresponding to Punching machine mold frame 71 die holder 74 is installed, and settles the counterdie 741 that matches with die head 73 on the die holder 74.

Please continue referring to Fig. 2, with described die holder 74 is benchmark, on the work top 75 of punch press 7, be that the automatic feeding mechanism of punching machine by the architecture advances of the present utility model of structure shown in Figure 1 is installed in the left side of die holder 74, and on the right side of die holder 74 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 work top 75 of punch press 7, also can be located at separately on the terrace, and 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 utility model in conjunction with Fig. 1, Fig. 2, as shown in Figure 2, to form between a pair of intermediate plate 91 and die head 73 and counterdie 741 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 8 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 8 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 7 enters duty, promptly when strip 10 upper punches are got one by one device, whenever die head 73 dives once downwards, first connecting rod 61 is moved down, promoting second connecting rod 62 by first connecting rod 61 rotates, the ratchet 63 of this moment does not act on the ratchet pawl 642 of ratchet 64, ratchet 64 does not drive the second roller axle 31, yet when die head 73 is up, first connecting rod 61 is up, second connecting rod 62 is towards promptly upwards rotating with previous opposite direction, the ratchet 63 of this moment acts on the ratchet pawl 642 of ratchet 64, make the second roller axle 31 rotate the pitch (air line distance) of ratchet pawl 642 degree, strip 10 in Fig. 2 by the direction of the arrow signal pitch of advancing, this pitch with by consistent towards the length of the device of getting.The rest may be inferred, as long as punch press 7 works without cessation, roller drive unit 6 produces synchronous motion so, the strip 10 for the treatment of the punching out shaping abstemiously dragged guided between die head 73 and the counterdie 741.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 0.15mm 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 of architecture advances is characterized in that it comprises a pair of roller frame opposite each other (1); A pair of first, second roller (2,3), be located at rotationally on the described a pair of roller frame (1), on the first roller axle (21) of first roller (2), be installed with first gear (4), and being installed with second gear (5) on the second roller axle (31) of second roller (3), first, second gear (4,5) is engaged with each other; One is used to order about the roller drive unit (6) of described second roller (5) motion, and this roller drive unit (6) connects with the Punching machine mold frame (71) and the described second roller axle (31) of punch press (7); A pair of roller is guided and supported device (8), is located at the top of a pair of roller frame (1) respectively and connects with first roller (2).

2, the automatic feeding mechanism of punching machine of architecture advances 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 (8) 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, 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), the wherein said second roller axle (31) connects with described roller drive unit (6).

3, the automatic feeding mechanism of punching machine of architecture advances according to claim 1, it is characterized in that described roller drive unit (6) comprises first, second connecting rod (61,62), ratchet (63) and ratchet (64) and torsion spring (65), the upper end of first connecting rod (61) and described Punching machine mold frame (71) connect, the last client link of lower end and second connecting rod (62), the lower end of second connecting rod (62) is nested with on the described second roller axle (31), ratchet (63) is hinged on second connecting rod (62) by first jointed shaft (631), match with described ratchet (64), ratchet (64) is fixed on the second roller axle (31), torsion spring (65) is located on described first jointed shaft (631), and matches with described ratchet (63).

4, the automatic feeding mechanism of punching machine of architecture advances according to claim 3, it is characterized in that the described second roller axle (31) and described second connecting rod (62) and the corresponding end of ratchet (64) constitute the fixedly fixing step (313) of step (312) and ratchet of a connecting rod, described ratchet (64) is fixed on ratchet fixedly on the step (312), and the lower end of described second connecting rod (62) is nested with at connecting rod fixedly on the step (313).

5,, it is characterized in that the distance between the ratchet pawl (642) on the described ratchet (64) is to equate with a feed of strip according to the automatic feeding mechanism of punching machine of claim 3 or 4 described architecture advances.

6, the automatic feeding mechanism of punching machine of architecture advances according to claim 2, it is characterized in that described roller guides and supports device (8) and comprise pull bar (81), elastomeric element (82), spanner (83) and bearing pin (84), the top of the lower end of pull bar (81) and the described first roller axle bed (211) is fixed, the upper end of pull bar (81) leans out the head piece (11) of described roller frame (1) and offers pin shaft hole (811), elastomeric element (82) is set on the pull bar (81), one end of elastomeric element (82) is kept out on described head piece (11), the other end is bearing on the first roller axle bed (211), and spanner (83) is hinged with described pull bar (81) by described bearing pin (84) and by means of described pin shaft hole (811) and connects.

7, the automatic feeding mechanism of punching machine of architecture advances according to claim 6, it is characterized in that described spanner (83) is constituting at least one cam (831) with described pull bar (81) end that connects that is hinged mutually, cam (831) contacts with described head piece (11).

8, the automatic feeding mechanism of punching machine of architecture advances according to claim 6 is characterized in that described elastomeric element (82) is a spring.

9,, it is characterized in that also being equipped with a strip guider (9) in a side corresponding to described roller frame (1) according to the automatic feeding mechanism of punching machine of claim 1 or 2 or 6 described architecture advances.

10, the automatic feeding mechanism of punching machine of architecture advances 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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