CN2174278Y - Adjusting apparatus for gap of guillotine blade - Google Patents

Abstract

The utility model relates to an adjusting apparatus for the gap of a guillotine blade, comprising a hand wheel and a drive mechanism. The upper parts of the two side plates of a guillotine machine table are fixedly provided with eccentric shaft sleeves by screw bolts, the inner parts of the eccentric shaft sleeves are connected with a spherical bearing whose inner part is connected with a drive shaft, the lower parts of the side plates are fixedly provided with eccentric shafts which form three-step shapes, one section with a smallest diameter is made into an eccentric section outside which an eccentric sleeve barrel is sheathed, and the outer part of the eccentric sleeve barrel is connected with a spherical bearing which is pivotally arranged in an upper blade rack. The utility model makes use of the combined type double-eccentric structure of the eccentric shafts and the eccentric sleeve barrel and the self eccentricity of the eccentric shaft sleeves to make the upper blade rack have bigger gap adjusting quantity.

Description

Adjusting apparatus for gap of guillotine blade

The utility model is relevant a kind of cutter clearance adjustment apparatus, particularly a kind of gap of guillotine blade adjusting device of two eccentric combined types.

Shearing machine is in order to the machine of cutting board sheet material, often is widely used in machining at present.As shown in Figure 1, mainly be last sword 1 and down 2 of swords form a suitable gap, stretch into wherein for sheet material, the shearing that presses down of the described upper knife edge 1 of mat is with the sheet material severing again, and whether the shear knife crack between upper and lower two blades is suitable, concerning that whether beautiful the section of cutting object is.See also shown in Fig. 2,3,4,2 of last sword 1 and following swords, insert certain thickness sheet material 3, because the horizontal clearance difference of described two cutting blades, it is suitable for the cutter crack to form as Fig. 2, and Fig. 3 is that the cutter crack is excessive, and Fig. 4 is three kinds of situations of cutter crack deficiency.Hence one can see that, and the cutter crack is too little or excessive, and not only shearing area is abominable, and can cause the blade excessive wear and increase the resistance of shearing, and suitable shear knife crack except can producing perfect shear surface, also can increase the life-span of blade.Because different materials needs different shear knife cracks with different thickness of slab, therefore perfect shearing machine, just must be provided with rapidly and accurately the cutter crack transfer device, cooperate the sheet material adjustment cutter crack of shearing different-thickness.It is shown in Figure 5 to continue cooperation, shearing machine in the past, some is the side plate 4 on the board both sides, and adorn in order to pivot on the fixed axis 6 of described upper tool post 5, excentric sleeve of suit (not showing on the figure), and the transmission mechanism that utilizes a runner 7 to drive board inside is set the corresponding angle of described axle sleeve, just can utilize the different eccentric configuration of described axle sleeve periphery wall thickness, change the pivot of described upper tool post 5 a little to down cut, therefore going up the horizontal level of sword 1 can adjust front and back, and obtains more suitable shear gap.But general shearing machine utilization is provided to, two blades of lower slide, when carrying out the shearing of sheet material, two blades can produce abrasion condition gradually naturally in the process of constantly shearing, after wearing up to a certain degree, just must take off grinding, after grinding, the blade attenuation that is bound to, so, after re-assemblying, the former shear knife crack of two blades will produce change slightly, if, proceed to shear, just have the inaccurate situation in cutter crack and produce with original shear knife crack assembling, just need utilize above-mentioned cutter clearance adjustment apparatus to adjust the cutter crack this moment, and it is thick just to remedy the sword that grinds off with the offset (thicker wall edge) of excentric sleeve.But after the wearing and tearing reorganization over and over again, the initial point gap of two blades constantly changes, if only adjust offset with original device, tending to following situation produces: 1, the cutter crack is adjusted inaccurate, because of having measured irregular menstrual period in former delineation standard and the cutter crack of establishing: 2, will not have the cutter crack adjustable to the end, because of the offset of axle sleeve is used (may be still not enough) fully, therefore, generally all use following two kinds of methods at present in order to possess accurate shear knife crack:

1, at knife back face pad with thin plate, just how many millimeters blade grinds, just on knife back face pad what the millimeter thin plate, this method has the thin plate of various different sizes except that need possess, after blade ground the number of times increase, the thin plate that knife back face is filled up also needed along with increase, the difficulty during so except the increase assembling, and cause the blade straigheness not good easily, be the shortcoming of the method.

2, the following cutter holder with workbench changes movable into, and this kind installation method is movable owing to descending tool rest, thus cause the cutter crack to increase easily at shear history, thereby cause the sheet material section abominable.Form the structure more complicated because of it again, so manufacturing cost is higher, no matter and when adjusting blade long and short, all will all adjust, thereby when adjusting special charges, above-mentioned situation all is the shortcoming of this device.

Main purpose of the present utility model is to be to provide a kind of gap of guillotine blade adjustment adjustment, make two blade abrade attenuation after, still can adjust its cutter crack rapidly, exactly.

A kind of gap of guillotine blade adjusting device that the utility model provides comprises handwheel and transmission mechanism, it is characterized in that the board both sides at shearing machine, and an eccentric shaft that is installed on the side plate is respectively arranged, and cooperates an eccentric adjusting sleeve and upper tool post to articulate.In addition, fix an excentric sleeve again in described side plate top, the two eccentric configuration of the combined type of described eccentric shaft of mat and eccentric adjusting sleeve, and the off-centre of excentric sleeve itself make described upper tool post can obtain bigger cutter crack adjustment amount.

The utility model gap of guillotine blade adjusting device, comprise the eccentric shaft that is installed in board side plate below, and outer eccentric adjusting sleeve of socket of its eccentric segment, the described eccentric adjusting sleeve overcoat spherical bearing of receiving, described spherical bearing hub setting is in upper tool post, described eccentric adjusting sleeve is with ring set outward, and described ring set also is fixed in upper tool post.Described eccentric adjusting sleeve links an outer ring set, and described outer shroud cover connects fixed head, and described fixed head is fan-shaped, and its periphery is provided with several screwed holes, and all places also are provided with several screwed holes in it, in order to connect outer ring set and fixed head.Be built-in with an excentric sleeve in above-mentioned side plate top, spherical bearing of hub setting in the described excentric sleeve, described excentric sleeve links power transmission shaft, and described power transmission shaft is provided with several keys, utilizes key to drive a pinion, described pinion driven gear plate.Described gear plate is fan-shaped, and its outer peripheral edges are provided with several teeth, and the place then is provided with several screwed holes near interior week, in order to link above-mentioned outer ring set and described fixed head.

Be elaborated to of the present utility model below by most preferred embodiment and accompanying drawing, in the accompanying drawing:

Fig. 1 is the action schematic diagram of shearing machine in the past.

Fig. 2,3 and 4 is that position, cutter crack and cutting object section concern schematic diagram.

Fig. 5 is the part outside drawing of shearing machine in the past.

Fig. 6 is the device schematic diagram of the utility model preferred embodiment.

Fig. 7 is the perspective exploded view of above-mentioned preferred embodiment.

Fig. 8 is the action schematic diagram of above-mentioned preferred embodiment in shearing machine.

Preferred embodiment of the present utility model is the board structure that both sides form similar and symmetrical shearing machine, so only with the structure explanation of a side, see also Fig. 6 and cooperate shown in Figure 7, in the present embodiment, include: member such as board side plate 10, eccentric shaft 20, eccentric adjusting sleeve 30, upper tool post 40, excentric sleeve 50, power transmission shaft 60, dial 70, another power transmission shaft 80, pinion 90, gear plate 100, fixed head 110.

The structure of described eccentric shaft 20 peripheral rings is three-stage shapes, be provided with several perforations 211 for first section 21, place for second section 22 in the board side plate 10, utilize bolt 212 to pass first section 21 perforation, described eccentric shaft 20 is fixed on the board side plate 10, the 3rd section 23 of described eccentric shaft 20 is one section eccentric segment, eccentric adjusting sleeve 30 of described the 3rd section 23 outer socket.

Described eccentric adjusting sleeve 30 is ducted bodies, and its outer peripheral edges structure is two-step shape, comprises than great circle footpath section 31 and than roundlet footpath section 32, than spherical bearing 33 of roundlet footpath section 32 outer sockets.Described spherical bearing 33 is that hub setting is in upper tool post 40, retainer ring 34 is placed in outside the described eccentric adjusting sleeve 30, and described retainer ring 34 also is fixed on the upper tool post 40 with bolt 341, described eccentric adjusting sleeve 30 links an outer ring set 35 than great circle footpath section 31, described outer ring set 35 is divided into three sections, be provided with several perforations 361 for first section 36, pass with spiral shell solid on fixed head 110 for bolt 362; Be positioned at inner ring for the 3rd section 38, also be provided with several perforations 381 on it; Second section 37 be placed in above-mentioned eccentric adjusting sleeve 30 than outside the great circle footpath section 31, and pass perforation 381 with bolt 382 and be fixed in the described screw than great circle footpath sections 31.In described board side plate 10 tops, be fixed with a hollow excentric sleeve 50, described excentric sleeve 50 structures generally are two scalariforms, be provided with several perforations 511 for first section 51, perforation number on 20 first section 21 of described perforation number and the eccentric shaft is identical, spherical bearing 53 of socket in second section eccentric segment 52 is provided with power transmission shaft 60 in the spherical bearing 53.

First section 61 of described power transmission shaft 60 is provided with screw thread 611 in a last end, the other end is provided with a key 62, described first section 61 outer side edges in board side plate 10 links dial 70, handgrip 71 and handwheel 72, second section three packing ring of socket 63,64,65 outside side plate 10 inner side edges of described power transmission shaft 60, be provided with a key 66 in described second section, be provided with a keyway 67 in the 3rd section.One power transmission shaft 80 is provided with a long key 82 in first section 81, and described long key is for 82 1 sections to be positioned at above-mentioned keyway 67, and another section drives a pinion 90.Described pinion 90 belows link gear plate 100, described gear plate 100 is fan-shaped, be provided with and above-mentioned steamboat 90 intermeshing several gear teeth 101 in outer peripheral edges, in locating to be provided with several perforations 102 near interior week, bolt 103 passes perforation 102 described end is fixed at fixed head 110 upper ends.Described fixed head 110 is fan-shaped, be provided with several perforations 111 that link with said gear plate 100 near the periphery, the place also is provided with several perforations 112 near interior week, described end places on 35 second sections 37 outer shrouds of above-mentioned outer ring set, and utilize bolt 362 to pass the perforation 361 of 35 first section 36 of outer ring set, and be fixed in the screwed hole 112, make fixed head 110 link outer ring set 35.

See also shown in Figure 8ly, the utility model is by the eccentric segment 23 of described eccentric shaft 20, and 30 of eccentric adjusting sleeves produce the two eccentric of combined type, makes upper tool post 40 can obtain bigger cutter crack adjustment amount.

When certain thickness sheet material is desired to cut out, the shear gap set-up procedure of two blades is as follows: at first according to thickness of slab and material, abide by dial 70, rotate handwheel 72, drive power transmission shaft 60 via key 62, and by key 82 another power transmission shafts 80 of drive, described key 82 drives pinion 90, described pinion 90 driven gear plates 100, described gear plate drives fixed head 110, and described fixed head 110 drives outer ring set 35, and described outer ring set 35 drives eccentric adjusting sleeve 30, described eccentric adjusting sleeve 30 drives upper tool posts 40 and moves, and so promptly finishes just to have begun the blade shear gap set-up procedure sheared.Wear up to a certain degree at two blades, and when making original offset not enough, handgrip 71 must be loosened, take off handwheel 72 and dial 70, loosen then and take off the bolt 512 that is fixed on the excentric sleeve 50, rotate 50 1 suitable angles of described excentric sleeve with specific purpose tool, loosen again and take off set bolt 212 on the eccentric shaft 20, and rotate described eccentric shaft 20 with specific purpose tool, the angle of rotating is identical with the rotational angle of above-mentioned excentric sleeve 50, make excentric sleeve 50 identical with the offset that eccentric shaft 20 produces, after rotation finishes, with the bolt 512 that takes off, 212 fixed eccentric shaft cover 50 and eccentric shaft 20, and fixing dial 70, handgrip 71 and handwheel 72.

Above-mentioned for adjusting blade shear gap step, its principle is as follows: after just having begun to have adjusted the shear knife crack between two blades, there is an offset to produce between eccentric adjusting sleeve 30 and eccentric shaft 20 eccentric segments 23, relatively, another excentric sleeve 50 also has an offset to produce, when two blades have just begun to grind, this offset can make upper tool post move a little, and reach the effect that keeps former shear gap, but, after two blades are ground to a certain degree, and make when described offset is not enough, just need eccentric rotation axis cover 50 and eccentric shaft 20, mainly be because the internal perisporium edge thickness difference of excentric sleeve 50, thereby after former offset uses up, as long as rotate described excentric sleeve 50 to than large eccentricity amount place, eccentric adjusting sleeve 30 too, when the offset of 23 of itself and eccentric shaft 20 eccentric segments uses up, as long as rotate described eccentric shaft 20, it is just passable to make 30 of eccentric segment 23 and eccentric adjusting sleeves produce a new offset.So, can make upper tool post 40 obtain bigger mobile space.Be noted that the offset that excentric sleeve 50 and eccentric shaft 20 are adjusted must be identical.

The obtainable advantage of the utility model institute and effect are described below: when two blades wear up to certain thickness, so that the not enough time spent of former offset, as long as loosen and take off set bolt 512 on the excentric sleeve 50, excentric sleeve 50 is rotated an angle; Simultaneously, loosen and take off the set bolt 212 that is fixed on the eccentric shaft 20, eccentric shaft 20 is also rotated an angle, the offset that both are produced is identical just passable, this kind adjustment cutter crack method not only saves time rapidly, and again quite accurate, so that when shearing sheet material, need not lose time in order to possess original shear knife crack.

Claims (1)

1, a kind of gap of guillotine blade adjusting device comprises handwheel and transmission mechanism, it is characterized in that: on the board both sides of shearing machine, respectively have an eccentric shaft that is installed on the side plate to cooperate an eccentric adjusting sleeve and upper tool post to articulate.

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