CN1072599C

CN1072599C - Method for regulating radial distance between two rotary tools and operating station for carrying-out same

Info

Publication number: CN1072599C
Application number: CN96119915A
Authority: CN
Inventors: 吉诺·克莱西奥里
Original assignee: Bobst SA
Current assignee: Bobst Mex SA
Priority date: 1995-09-22
Filing date: 1996-09-23
Publication date: 2001-10-10
Anticipated expiration: 2016-09-23
Also published as: EP0764505B1; CH691116A5; EP0764505A1; DE69605262T2; CN1150111A; JP2812673B2; JPH09117892A; DE69605262D1

Abstract

A rotary work station of a web or a sheet material is provided with cylindrical tools 2 and 3, and these tools are provided with rolling strips, and bearings of these strips are arranged in the upper half contours 3 and 3a and the lower half contours 5 and 5a. The upper half contours 3 and 3a and the lower half contours 5 and 5a are connected to each other by ties 8, 8a, 9 and 9a and adjustable wedges 10, 10a, 11 and 11a. The bearings are individually controlled by a heat adjusting device of a lubricating fluid, and the lubricating fluid is supplied to them.

Description

Regulate radial spacing method between two rotary and implement the processing stations of this method

The present invention relates to the method for the radial spacing that exists between a kind of accurate adjusting two cylinder instruments, and the processing stations of implementing this method.Above-mentioned cylinder tool applications especially is applied in processing and resembles on the processing stations of paper material, cardboard material or the first-class band of plastic or a material, so that produce the blank and the tongue bars of folding chamber on the station of a processing band or a material.

Now, a processing band or a material have generally comprised a parting tool and a smooth cylindrical anvil tool down on one with the processing stations in the machine that produces folding chamber blank, they are installed in the bearing that is arranged in a casing, and this casing is placed on each side frame of machine.

In these processing stations, on cut tool and following anvil tool transmission undertaken by gear mesh, their velocities of rotation are identical to be switched in opposite, in addition, the pitch circle of gear is identical, just selects to such an extent that make to cut between tool and the following anvil tool and maintain a very little spacing.In order the most accurately to keep cutting the spacing between tool and the following anvil tool, on cut tool and following anvil tool each end one rotation wheel rim all is installed, its diameter equates with the pitch circle diameter of transmission gear.Cut the casing of tool and following anvil tool in the supporting and is made up of two slipper bearings, one one is being descended last, vertically slip in their can be in each side frame of machine set openings.In one embodiment, the connection between the slide block connects by an elastic connecting device up and down, its objective is top shoe can be risen with respect to sliding block, thereby makes top shoe do limited moving with respect to sliding block.

Top shoe is pressed on the elastic connecting device that connects slide block up and down realizes, will guarantee to cut the radial spacing between tool and the following anvil tool in the time of pressurization by means of jack.This structure has detailed explanation in French Patent (FRP) No.2645790.

One of shortcoming of this cutting machine is, on the spacing of cutting between tool and the following anvil tool be the effect of depending on the jack pair springing, this just makes above-mentioned spacing be difficult to keep constant, reason is that the pressure in the jack hydraulic loop changes, and on cut the pressure that is produced when tool and following anvil tool cut and also change.It is to come from can't effectively control thermal phenomenon and produce that this machine runs into another shortcoming, described thermal phenomenon be by on cut tool and following anvil tool bearing heat produced, and due to the local temperature rising effect that produced of cutting operation itself.When accurately cutting, these shortcomings all will present.In fact, constitute the difference of the character of machine material, different quality coincide and certain a bit or the adding of a certain amount of localized heat, everything make temperature along on cut tool or down anvil tool length direction change, be in different levels.Different temperature just produces different het expansions, and according to the position difference that produces heat, some place just produces the phenomenon of undercut, the excessive problem of pressure when the anvil tool is depressed with regard to cutting tool on producing in some place, the wearing and tearing that this cuts tool on just increasing also just need often be keeped in repair, or be changed.

So people attempt overcoming above-mentioned shortcoming, whole cutter sweep is had and maintain a stationary temperature, this stationary temperature is scheduled to, and is adjustable, guaranteeing the stable of cutting condition, determined highest temperature when said temperature can be equal to or greater than normal operation.This technical solution has detailed description at French Patent (FRP) No.2620372.

The objective of the invention is present situation from above-mentioned technical field, the method of spacing between a kind of accurate adjusting two cylinder instruments is provided and implements the processing stations of this method, so that eliminate shortcoming in the above-mentioned prior art, improve cutting operation, increase the useful life of instrument simultaneously.

For this reason, the method for accurately regulating radial spacing between the two cylinder instruments is described tool applications at the band of processing paper, cardboard or plastic or opens in the processing stations of material described

cylindrical tool

2,4 end has rotating

band

13,14,15,16, be characterized in, when beginning, make the rotating band 13 of

cylindrical tool

2,14 with the rotating band 15 of

cylindrical tool

4,16 contact, thereby determine the initial radial spacing between described two

cylindrical tools

2,4; Then by scalable cushion block 10,11 keep above-mentioned initial radial spacing, and scalable cushion block 10,11 is at lower half shell 5, the top of 5a and upper half shell 3, act between the bottom of 3a, described upper half shell 3 is cut the bearing 80 of tool 2 in the 3a supporting, 82, and lower half shell 5,5a then supports down the

bearing

81,83 of anvil tool 4; Again subsequently, by 17 pairs of described rotating

bands

13,14 of pull bar, 15,16 impose elastic deformation stress, and described pull bar 17 acts on described half shell 3 by middle support set 24,3a, 5,5a, described half shell is clamped mutually, described rotating

band

13,14,15, second radial spacing between the

cylindrical tool

2,4 has been determined in 16 distortion; Then, control the interchange of heat that occurs on each

cylindrical tool

2,4 length of run duration, so that the change in size on the diameter of the described cylindrical tool of compensation on the length of whole

cylindrical tool

2,4 by the temperature of control bearing 80,81,82,83.The processing stations of implementing this method then includes

cylindrical tool

2,4, is provided with rotating

band

13,14,15,16, bearing 80,81,82,83 are installed in upper half shell 3, and 3a and lower half shell 5 are among the 5a, be characterized in, described upper half shell 3,3a and lower half shell 5 pass through connecting rod 8 between the 5a, 8a, 9,9a and can adjust cushion block 10,10a, 11,11a is connected to each other; Described bearing 80,81,82,83 is controlled respectively by a temperature control equipment 92 difference supplying lubricating oil liquid.

Advantage of the present invention be simultaneously on cut that tool descends the position of anvil tool relatively and on last length of cutting tool and following anvil tool the control interchange of heat condition this work aspect two, thereby can improve cutting operation, cut the useful life of tool in the increase.

Now in conjunction with the accompanying drawings, an embodiment who the present invention is rotated cutting machine elaborates, and this embodiment is an example, and nonrestrictive.

Fig. 1 rotates cutting work station profile scheme drawing;

Fig. 2 is along II among Fig. 1-II cutaway view that line is done;

Fig. 3 is along III among Fig. 1-III cutaway view that line is done;

Fig. 4 is along IV among Fig. 1-IV cutaway view that line is done;

Fig. 5 is a temperature traverse scheme drawing in cutting work station commonly used;

Fig. 6 is a temperature traverse scheme drawing in cutting work station of the present invention;

Fig. 7 is a temperature control equipment operation scheme drawing.

Fig. 1 is used in to make the profile scheme drawing that rotates cutting work station 1 in the folding chamber blank machine.In this class machine, a plurality of such stations can be set, a then arrangement so that realize operations such as each road such as pressure feed, rolling ripple and cutting, these operations all be at band or open process on the material needed.For this reason, just passable as long as corresponding turning tool is installed in each station.In the embodiment shown in fig. 1, cut tool 2 in the cylindrical rotation and be installed in first half shell 3, among the 3a, and the following instrument of cylindrical rotation claims that again 4 of anvil tools are installed in lower half shell 5 down, among the 5a.Described two

halves shell

3,3a and 5,5a connect into a casing 6, and casing 6 is placed in the frame 7 of rotating cutting work station 1.

Half shell

3,3a and 5,5a be by connecting

rod

8,8a and 9,9a and synergistic scalable cradle 10,10a and 11,11a and being abutted against mutually.In following explanation, will to connecting rod 8 and 9 and the function of scalable cradle 10 and 11 be described in more detail.

Fig. 2 is the cutaway view along Fig. 1 II-II line.On cut tool 2 and have cutting blade 12, this cutting blade is to process on last periphery of cutting tool according to the profile of the folding chamber blank that will make.And following anvil tool 4, its circumferential periphery then is smooth.On cut tool 2 and be respectively equipped with in its each end and rotate wheel rim 13,14.On cut tool 2

rotation wheel rim

13,14 rotate being positioned on the

rotation wheel rim

15 and 16 of anvil tool 4 each end down.As previously mentioned,

half shell

3,3a and 5,5a are by connecting

rod

8,8a and 9,9a and abutting against together.Each connecting

rod

8,8a and 9,9a all have a pull bar 17,17a, and there is a screw thread 18 the pull bar lower end, 18a, with lower half shell 5, the tapped bore 19 that processes in the 5a top, 19a intermeshes.Pull bar 17,17a pass the bottom of upper half shell 3, simultaneously by hole 20, and 20a.There is a screw thread 21 upper end of pull bar, a 21a and a square clamping head 22, and 22a, this square clamping head is established for fork spanner.Screw thread 21,21a and nut 23, the 23a engagement, and the latter will abut in support set 24 when tightening, and on the upper surface of 24a, as for support set 24, the lower surface of 24a then abuts in upper half shell 3, and the bottom 25 of 3a is on the face of 25a.

Fig. 3 is the cutaway view along III among Fig. 1-III line, expresses the bearing of cutting tool 2 and following anvil tool 4 among Fig. 3.On cut tool 2 an end one cylindric axle journal 26 is arranged, two tapered roller bearings 27 and 28 are installed on this axle journal, these two tapered roller bearings 27 and 28 are by support set 29 and 30 and be positioned on the cylindrical journal 26 with the pad 31 that screw 32 is fixed on axle head.Tapered roller bearing 27 and 28 is placed in the bearing carrier ring 33, and the latter is fixed in the upper half shell 3 by screw 34.The sealing of bearing carrier ring 33 is by bearing cap shim 35 and 36 and obtain.On cut tool 2 the other end two axle journals 37 and 38 are arranged.Axle journal 37 is supporting two tapered roller bearings 39 and 40, they locate in the axial direction by support set 41 and 42 and retaining nut 43 guarantee that retaining nut 43 acts on the annulus 44, thereby the interior ring of tapered roller bearing 39 and 40 is pressed on the shaft shoulder 45 of axle journal 37.The sealing of said modules is guaranteed by bearing cap shim 49 and 50.Gear 46 is installed on the axle journal 38, and is fixed on this axle journal by the double tapered annulus 47 that tightens up with screw 48.52 engagements of gear 46 and the driven wheel 51 and second gear--no gap gear, the latter is fixed on down on the axle journal 53 of anvil tool 4 ends by key.It is that locked spacer 54 by be fixed on axle head with screw 55 guarantees that this second bearing 52 is located in the axial direction.On the axle journal 57 of following anvil tool 4 ends two tapered roller bearings 56 and 62 are installed, so the sealing of the bearing that constitutes obtains by bearing cap shim 58 and hood 50.There is an axle journal 59 following anvil tool 4 the other end, and two tapered roller bearings 60 and 61 are housed on it, the axial location of two bearings by support set 63 and 64 and the locked spacer 65 that is screwed at axle head guarantee.Tapered roller bearing 60 and 61 outer shroud inserting are in the endoporus of bearing carrier ring 67, and bearing carrier ring 67 is fixed in the lower half shell 5 by screw 68.The sealing of said modules is realized by bearing cap shim 69 and bell lid 70.

Fig. 4 is the cutaway view along IV among Fig. 1-IV line, and it shows in the scalable cushion block 10,11 one.Scalable cushion block 10 is screw shaped, and cylindrical screw head 71 is provided with hole 72, and this Kong Zhongke inserts rod member so that the screw shaped cushion block is rotated when regulating.The socket cap 71 of screw is provided with a shoulder portion 73, is used for contacting with the bottom of upper half shell 3, and fine motion screw thread 74 and the tapped bore engagement that is placed in lower half shell 5 tops.

Figure 5 shows that temperature traverse scheme drawing in the cutting work station commonly used.

Bearing

80,81, mechanical strees in 82 and 83, the mechanical strees that

gear

46 and 52 engagements produce, and since on cut tool 2 and the mechanical strees that rotation produced of following anvil tool 4 on its corresponding rotating band 13 to 16, everything just causes producing heat, along on cut the length of tool 2 and the length distribution of following anvil tool 4.Since on to cut the mass ratio of tool 2 and following anvil tool 4 bigger, heat can not be equably along its length distribution, the temperature of locating to record in its end is always than higher.On cut tool 2 and following anvil tool 4 end region temperature make the variation of its end size more much bigger than the change in size in its centre.The Figure 84 that illustrates side by side in Fig. 5 demonstrates temperature distribution state, and wherein abscissa is represented distance between bearings, and ordinate is expressed the temperature height, and this temperature distribution history also shows the situation of cutting tool 2 and following anvil tool 4 change in size similarly.On cut the feasible material by therebetween of tool 2 and following anvil tool 4 this distortion and can not get cutting in working order.In fact, the cutting situation near two tool end places always is better than the cutting situation that is positioned at place, two instrument middle parts.This result is unacceptable in actual production.

Figure 6 shows that temperature traverse scheme drawing in the cutting work station of the present invention.Bearing shown in the figure 80,81,82 and 83 has been equipped with a kind of temperature control equipment (see figure 7).Each bearing 80 to 83 all includes an oil inlet 86 and an oil export 87, and this oil is imported and exported and is used for regulating respectively each bearing temperature, and guarantees necessary lubricating effect simultaneously.Therefore, when bearing being cooled off, just obtain to be listed in the temperature distributing curve diagram 85 among Fig. 6 with aforesaid way.By selecting the chilling temperature value to make it adapt to the temperature build-up distribution situation that temperature distribution history 84 is showed among Fig. 5, like this that Figure 84 and Figure 85 is superimposed, people just on the last size distortion of cutting tool 2 and following anvil tool 4, obtain one perfectly complementary, this just makes and can obtain regular and cutting in working order on the length of whole instrument up and down.

Figure 7 shows that the running chart of the temperature control equipment 92 that is used for cooling bearing 80 to 83.Temperature control equipment 92 can obtain easily from the market, and it is that the FURRER AG company that is positioned at Switzerland DALLIKON produces, and the product entitling is OK 25.Include four air governors 88 to 91 in the temperature control equipment, the oil that they will regulate temperature is transported to each bearing 80 to 83 by pipeline 86, and by recycle oil and the lubricating oil of pipeline 87 recovery from bearing 80 to 83.In order to obtain accurate as far as possible the adjusting, each bearing 80 to 83 all is equipped with a temp probe 93, and each probe is electrically connected with each air governor 88 to 91 respectively by electric wire 94.In addition, also be provided with an ambient temperature detector 95 last near cutting tool 2 and following anvil tool 4.This ambient temperature detector 95 also is electrically connected with each air governor 88 to 91 by electric wire 96.Like this, temperature control equipment 92 just can be according to the temperature regime of cutting work station reality, accurately calculate under what temperature and should can offset because temperature build-up produces the size distortion of size distortion on described two tool length so that produce to each bearing 80 to 83 supply fluid.Satisfactory for the operation that guarantees the rotation cutting machine, will regulate the original spacing of cutting between tool 2 and the following anvil tool 4 subtly on the one hand, and on the other hand, this adjusting is to realize by the temperature that accuracy control and adjustment means are moved.

Cutting between tool 2 and the following anvil tool 4 distance in the adjusting carries out according to following manner:

At first, regulate on the platform, allow the rotating band 13 of cutting tool 2 contact with 16 with the rotating band 15 of following anvil tool 4 with 14 one.At this moment, with on the distance value cut between tool 2 and the following anvil tool 4 be decided to be 0.013 millimeter.Secondly, allow scalable cushion block 10 contact with the bottom of upper half shell 3, but the application of force is not thereon with 11.Subsequently, tension linkage 8 and 9 pull bar 17, make the power that acts on the rotating band 13 to 16 reach 40,000 newton, certainly the application of force can not exceed the elastic limit of pull bar, at this moment rotating band pressed sunken, also in He Zhi (Hertz) stress tolerance interval, pressure has fallen into 0.011 millimeter, thus will on the distance values of cutting between tool 2 and the following anvil tool 4 be reduced to 0.002 millimeter.

Claims

1. accurately regulate two cylindrical tools (2 for one kind, 4) method of radial spacing between, described tool applications is in the processing stations of a band of processing paper, cardboard or plastic or a material, described cylindrical tool (2,4) end has rotating band (13,14,15,16), it is characterized in that, when beginning, the rotating band (13,14) of cylindrical tool (2) and the rotating band (15,16) of cylindrical tool (4) are contacted, thereby determine the initial radial spacing between described two cylindrical tools (2,4); Then by scalable cushion block (10,11) keep above-mentioned initial radial spacing, scalable cushion block (10,11) is at lower half shell (5, top 5a) and upper half shell (3, act between bottom 3a), and described upper half shell (3,3a) support the bearing (80 of cutting tool (2), 82), and lower half shell (5,5a) then support the bearing (81,83) of anvil tool (4) down; Again subsequently, by pull bar (17) to described rotating band (13,14,15,16) impose elastic deformation stress, described pull bar (17) acts on described half shell (3 by middle support set (24), 3a, 5,5a), described half shell is clamped mutually, described rotating band (13,14,15,16) second radial spacing between the cylindrical tool (2,4) has been determined in distortion; Then, by control bearing (80,81,82,83) temperature is controlled the interchange of heat that occurs on each cylindrical tool of run duration (2,4) length, so that the change in size on the diameter of the described cylindrical tool of compensation on the length of whole cylindrical tool (2,4).

2. according to the described method of claim 1, it is characterized in that, control the interchange of heat that occurs on each cylindrical tool (2,4) length by the lubricating fluid stream temperature that controls to adjust each bearing (80,81,82,83) respectively at run duration.

3. implement the processing band of said method or the rotation processing stations of a material for one kind, it includes cylindrical tool (2,4), is provided with rotating band (13,14,15,16), bearing (80,81,82,83) be installed in upper half shell (3,3a) and lower half shell (5,5a), it is characterized in that described upper half shell (3,3a) and lower half shell (5,5a) between by connecting rod (8,8a, 9,9a) and can adjust cushion block (10,10a, 11,11a) be connected to each other; Described bearing (80,81,82,83) is controlled respectively by a temperature control equipment (92) difference supplying lubricating oil liquid.

4. according to the described processing stations of claim 3, it is characterized in that described connecting rod (8,8a, 9, (17,17a), an end of described pull bar has a screw thread (18 9a) to comprise a pull bar, 18a), this screw thread and lower half shell (5,5a) above in the tapped bore that processes cooperate; Described pull bar (17,17a) other end have a nut (23,23a), be used for support set (24,24a) be pressed against upper half shell (3, bottom 3a) (25,25a) on.

5. according to the described processing stations of claim 3, it is characterized in that scalable cushion block (10,10a, 11,11a) have a fine motion screw thread (74) and a shoulder portion (73), (5, the tapped bore in top 5a) cooperates described fine motion screw thread with being positioned at lower half shell, described shoulder portion is used for then that (3, bottom 3a) contacts with upper half shell.

6. according to the described processing stations of claim 3, it is characterized in that each bearing (80,81,82,83) all is equipped with a probe (93) that is connected with described temperature control equipment (92); An ambient temperature detector (95) that also is connected with described temperature control equipment (92) has been installed near described cylindrical tool (2,4).