DE3210602A1 - METHOD AND DEVICE FOR BREAKING BALLS OF TEXTILE FIBERS - Google Patents

Description

1210602:: - f: ": ^; - :: - ■ · *:

KÜHNEN & WACKER ^: - "- ^: * ^: .. ^: .:«

PATENT AGENCY OFFICE

REGISTERED REI'RF.SHNTATIVES BEFORE THE EUROPEAN PATENT OFFICE

Fiber Controls Corporation PATENT Attorneys

Gastonia, N.C. R.-A. KÜHNEN *, dipl.-ing.

W. LUDERSCHMiDT ", DR., DiPL.-CHEM. U.S.A. P.-A. WACKER *, dipl.-ing., Dipl.-economic.-ing.

16 FCOl 04 2

Method and device for breaking bales of textile

fibers

The invention relates to a method for breaking bales made of textile fibers, in particular arranged on a circular floor surface, according to the preamble of claim 1 and a device for breaking bales out. Textile fibers according to the preamble of claim 6.

Known bale breakers require a very large floor area per bale, for example on a large right-angled Area from which much of the available space is not really used to pluck fibers out of the Bale is used, while in the case of a circular bottom surface the bale only covers the area of the outer perimeter of the circular area.

It is therefore an object of the invention to address at least one of the disadvantages the known method for breaking bales or to eliminate the bale breaker.

This object is achieved by the characterizing features of claim 1 and claim 6, respectively.

OFFICE 6370 OBF.RURSEL * LINDKNSTKASSE 10 TEL. 06171'56849 TELEX 41 t! T> 3 «real d

OFFICE 8050 FREISING · SCHNL-GGSTRASSU 3-5 TEL. 08161/62091 TELEX 526547 pawa d

BRANCH OFFICE 8390 PASSAU LUDWIGSTRASSE 2 TEL. 0851/36616

This creates a very effective storage arrangement the bale is possible, which saves a lot of space and allows a very clean removal of fibers that in particular be plucked from the top of the bale in a cyclical process that consists of a There is a painting over, a lowering process and a renewed painting over the tops of the bales.

Further details, advantages and features of the invention emerge from the following description of the invention Method and an embodiment of the device according to the invention for breaking bales based on the Drawing.

It shows

Fig. 1 is a front view of a device according to the invention,

FIG. 2 shows a rear view of the device according to FIG. 1 _f

3 shows a partial view of the inner side of the device according to FIG. 1,

FIG. 4 is a partial view of the outer side of the device according to FIG. 1,

Fig. 5 is a sectional view of a racket device

the device according to FIGS. 1, 30

6 shows a partial view of a rotating club of the club device according to FIG. 5,

Fig. 7

up to 9 top views of different storage arrangements of bales for different surface sizes,

* e

and

10 is a circuit diagram of an electrical circuit which is to be incorporated into the device according to the invention suitable is.

According to FIGS. 1 to 4, a boom part 10 is shown, which is located on the inside in the selected illustration End is attached, and arranged rotatably about the vertical axis of a central column 12 in a horizontal plane is. According to FIG. 4, two supports 14, 16 are mounted on the outer end of the boom part 10, on their underside Wheels 18 and 20 are arranged. The column 12 and the wheels 18, 20 are arranged on a floor surface 22, the Wheels 18, 20 circumscribe a circle around column 12, if das.hintere wheel 20 is driven via a chain 24 by means of a motor 26.

The boom part 10 and the supports 14 and 16 together form a frame device which includes a club device 28 stores. On the outer side, the racket device 28 is supported by a pair of brackets which are attached to a front plate 32 of the racket device 28 are attached, with the bracket 30 at its outer end, inside the support 14 is provided with a nut or sleeve 34 which is screwed onto a vertical, rotatable threaded rod 36. The threaded rod 36 is at its lower part End inside the support 4 by means of a holding part 38 that allows the threaded rod 36 to rotate without vertical movement. The other bracket 31 is open similarly attached to the rear plate of the racket assembly 28 and has a nut or sleeve 42 on, which is screwably connected to a rear vertical threaded rod 44 which is arranged within the rear support 16 is. The threaded rod 44 is also on the underside of the support. 16 attached, giving them a twist without a vertical movement.

The inboard end of the club assembly 28 is also on the frame assembly by means of an additional pair vertical threaded rods 46 and 48 fixed at their lower end stationary on a horizontal bracket 50, which in turn is arranged on the inner end of the racket device 28. The vertical Threaded rods 46 and 48 are non-rotatable and have nuts or sleeves 52 screwed onto them or 54, which are preferably designed as ball screw nuts, which also applies to those mentioned Nuts or sleeves 34 and 42 apply. The sleeves and 54 are attached to L-shaped brackets 56 and 58 ', the in turn are attached to a base plate 60 in the middle part of the frame device via their foot area, wherein the upright portions of brackets 56 and 58 are attached to brackets 62 and 68, respectively, which form part of the boom portion 10. educate.

The threaded sleeves 52 and 54 are also attached to sprockets 70 and 72, respectively. On the other end of the boom part 10 are the other two vertical threaded rods 36 and 44 on chain sprockets 74 and 76, respectively attached. Around these four chain sprockets 70, 72, 74 and a chain 78 is drawn, which is from a motor is driven via a reduction gear 82 and a sprocket 84. When the motor 80 drives the sprocket 84 rotates, whereby the chain 78 is driven, rotate the four chain sprockets 70, 72 arranged in the corners, 74 and 76 uniform. Since the sprockets 74 and 76 at the outer end are fixed to the vertical threaded rods and 44 are connected, the movement of the chain 78 causes the threaded rods 36 and 44 to rotate, which in turn move the threaded sleeves 34 and 42 vertically, upward when the threaded rods 36 and 44 are rotated in one direction, and down when the threaded rods 36 and 44 are in the can be rotated in the opposite direction. In contrast, caused by the movement of the chain 78

, AO

Called rotation of the sprockets 70 and 72 is a rotational movement of the threaded sleeves 52 and 54. Da the sleeves 52 and 54 are fixed in their vertical position, move the vertical threaded rods and 48, respectively, which are screwably connected to the rotating sleeves 52 and 54, in the vertical direction, namely according to FIG Direction of rotation of the chain 78 upwards or downwards.

It can be seen from the foregoing that the motor 80 causing the upward and downward movement is in the switched-on state the beater device 28 is moved up or down according to the direction of rotation of the motor 80.

The racket device 28 is shown in greater detail in FIGS shown. A rotatable bat 86, which has a cylinder part 88, is arranged within the beater device 28 with end-face disks 90, the Stunmelwelle 92, which are each arranged on face plates, not shown in detail, of the racket device 28 are. On the outside of the cylinder part 88 are a plurality of two-pronged racket pins or racket teeth 94 arranged. As shown in Fig. 6, the racket teeth 94 are arranged in longitudinal rows, which with the same Distance from one another according to FIG. 5 are arranged circumferentially on the cylinder part 88, it being clear that eight such rows are shown. As can be seen from Fig. 6, the racket teeth 94 are light from row to row offset from one another, with a set of racket teeth 94 of one of the rows being arranged in a longitudinal position, while a correspondingly different set of racket teeth is arranged in a different longitudinal position.

The beater assembly 28 further includes a plurality of cradle-like grids 96 to _t 28 which are secured with their gegenüberliegen- ^OJ the ends to the front plate 32 and rear plate 40 of the racket device. These grids have a lower flat area 98 which, according to FIG. 5, does not extend as far as the perpendicular downward.

■ 6 · ΑΛ

directed racket teeth 94 extends downward. The reason for this is explained in more detail below.

The rotatable racket 86 is arranged in the racket device in such a way that its outer, silent shaft 92 extends outward with a pulley 102 is connected by means of a belt 104. The pulley 102 is in turn connected to a club motor device 106 connected, whereby the rotatable racket 86 is rotated when the racket motor device 106 rotates about its longitudinal axis will.

From Fig. 5 it is clear that the upper end of the racket device 28 has an opening 108 which is connected to a transfer line shown in FIGS 110 is connected. As can be seen from these figures, the opening 108 extends in the club assembly 28 over the length of the rotatable racket 86 and the transfer line 110 connects the long rectangular opening. 108 with a round pipe 112, for example typically 304.8 mm (12 inches) in diameter can, and which is composed of four telescopically telescopic sections, so that the Racket device 28 and the transfer line 110 a Up and down movement is possible. At its upper end, the sections of the line 112 are by means of struts 114 on Boom part 10 attached so that a corner line at a predetermined constant height above the ground surface 22 is located. Since the boom 10 rotates about the vertical axis 118 of the central column 12 and since the Corner line 116, a line part 120 and another corner line 122 rotate, it is necessary to align the corner line 122 with the vertical axis 118. For this purpose, the line 120 has telescopic sections on, which form an effective sliding connection that allows setting a correct positioning of the corner pipe 122 allows. Above the corner line 122 is usually another, not shown, at right angles

f Al

angled line that connects to a horizontally extending, stationary line arrangement creates, which the fibers by means of a suction fan to their final destination demands.

According to FIG. 1, an upper limit switch is arranged on the support 4, which is actuated when the beater device 28 is raised to the level of this limit switch 124. On the other hand, when it is being lowered, the beater device 28 comes into contact with a lower limit switch 126 which is also arranged on the support 4 and which is actuated by the beater device 28. Another limit switch 128 is arranged on a rotating, centrally arranged post 130 and is actuated once per revolution by means of an adjustable release device 132 which is arranged stationary on the column 12. These three limit switches 124, 126 and 128 are explained in more detail in the following explanation of the electrical circuit according to FIG.

Before explaining the electrical circuit and the mode of operation of the overall arrangement, three different sized bale deposit surfaces for ten, twelve and fourteen bales, respectively, shown diagrammatically in accordance with FIGS. 7, 8 and 9, are explained. In all arrangements, the pads are approximately 71 cm (28 inches) wide and 142 cm (56 inches) long. In practice, the outer circles in Fig. 7, 8 and 9 a Druchmesser about 440 cm (14.5 feet) or 500 cm (16.5 feet) and 560 _C m (18.5 feet) on, while the inner circles have radii of 69 · ^; 27 inches, 37 inches, and 47 inches, respectively. These outer and inner circles represent the outer and inner ends of the working part of the rotatable racket 86, for example the usual positions of the racket teeth 94 and the grids 96 at the opposite ends of the rotatable racket 86. With such dimensions for the outer and inner circles in

Figures 7, 8 and 9 are the maximum number of USDA size fiber balls that can be placed in the area between the inner and outer circles, ten, twelve and fourteen balls respectively, as in Figures 7, .5 8 and 9 is shown. In other words, this means that the maximum number of bales can be placed on the corresponding surfaces if the bales are arranged in the manner shown in FIGS. 7, 8 and 9, respectively. For example, in the arrangement according to FIG. 7, two balls 134 and 136 are arranged with their long side perpendicular to the diameter line 138 at the outer end of the diameter line 138. A pair of balls 142 and 144 and another pair of balls 146 and 148 are arranged slightly inward of these two balls 136, 138, the balls of the two pairs each being arranged with their long sides perpendicular to the diameter line 138 and on opposite sides of the diameter line 138 are. The other four balls 150, 152, 154 and 156 extend with their long sides parallel to the diameter line 138, with two balls being arranged on one side of the inner side of the circle and the other two on the other side, each being arranged in the middle on one Line 158 lie. Similarly, the specific arrangements according to FIGS. 8 and 9 can be described for twelve and fourteen bale trays respectively with respect to the arrangement of the respective bales in the areas between the outer and inner circles.

In actual operation, the fiber bales are initially set according to the size of the bale breaking device placed on the bottom surface 22 with markings for the ball arrangement one of FIGS. 7, 8 and 9 accordingly is provided. The marking can be applied by means of paint, tape strips, etc. Definitely lay the workers with the device stopped, the bales, according to the marking on the floor surface 22, after which the Overall arrangement is ready for use.

9 AH

All of the ball arrangements shown in FIGS. 7, 8 and 9 have in common that the balls in the annular space between the concentric circles with their long and / or narrow sides in an orderly manner abutting one another will. In addition, all three ball arrangements are on two diametrically opposite sides of the Annular space an inner layer of two bales adjacent to their narrow sides and an outer layer of one, the gap between the inner bale covering the bales arranged. According to FIG. 7, for example, form the balls 142 and 144 on one side of the inner circle and pads 146 and 148 on the other, diametrically opposite Side of the inner circle, the respective inner layers, while the bale 134 on one side or the Pad 136 on the other side of the inner circle the each form outer layers which coincide with the diameter line 138 in the selected illustration Cover the gap between the balls 142 and 144 or 146 and 148.

The ball arrangement according to FIG. 7 has the special feature that the diameter of the inner circle of the length of a Long side of a bale corresponds and that all inner bales correspond to the inner circle with their long sides be arranged adjacent.

In contrast, in the case of the ball arrangements according to FIGS. 8 and 9, all the balls are aligned parallel to one another arranged their long sides. In this case, in the arrangement according to FIG. 8, those arranged between the inner layers are Bales lined up in a row, with three bales next to each other on both sides of the inner circle lie. In contrast, in the arrangement according to FIG. 9 on each side of the inner circle four balls arranged, with the inner two balls of the two groups of four slightly outwards on the outer circle are arranged to be offset.

The circuit for overall actuation of the device described above is in a housing 160 at the top arranged on the outer end of the boom 10. Much of the circuit shown in FIG. 10 is in the Housing 16.0 included.

Referring to Fig. 10, a transformer 162 feeds lines 164 and 164 166 through an emergency stop switch 168 and supplies a photocell 170 with energy. According to FIG. 1, this is Photocell 170 located on the bracket 30, with a reflector 172 on the opposite end of the racket device 28 is arranged. The arrangement of the photocell 170 and the forming a safety device The reflector 172 is used to switch off the racket device 28, if the beam between the photocell 170 and the reflector 172 by a person or in some other way should be interrupted. When the photocell 170 is energized, its contacts EE are closed. If these contacts EE are opened by an interruption, the racket motor device can no longer receive current, whereby the rotation of the club 86 is stopped.

If the device for breaking bales is to be approached, the reflector or club start button 172 is activated for a moment long printed so that a current to operate the club motor device 106 flows. In reality, of course, the magnets 1M of the racket motor device become by means of the current 106 actuated, which cause the rotation of the motor ™. This actuation closes the 1M contacts 174, which are arranged in a circle parallel to the smack start button 172, so that the magnets of the beater motor device 106 are supplied with current, since the photocell contacts EE are already closed and the contacts 176 are also already closed, as will be described in more detail below.

With the bat 86 now rotating, the next thing to do

is that the racket device 28 is not in a reaches such a vertical or radial position that either the upper or lower limit switches 124 and 126 or the 360 ° limit switch 128 are actuated. This is because of this achieved that a boom rotation switch 1 78 beweyt to the contacts 180 of a HancLschalters, whereby the 2M magnets of the racket motor assembly 106 are instantly energized. To the racket device 28 A club index switch must not come into contact with either the upper or lower limit switch or 126 182 may be held against down contacts 184 or up contacts 186 for a moment. The index switch 182 is a three position switch that is spring loaded to its third or automatic position, in which contacts 188 are closed for security reasons. The actuation of the index switch 182 to close the down contact 184 moves the racket device down to the desired starting altitude, which is explained in more detail below.

Then the boom rotation switch _ 1 78 is in its Automatic position switched, which closes contacts 190, while the index switch 182 automatically keeps its contacts 188 closed. Between the contacts 190 and the Boom rotation electromagnets of motor 26 are normally closed contacts 192, discussed in greater detail below and 194 and contacts 196 arranged. The latter contacts 196 are assigned to the next step, which is to control whether fibers from the bale breaker device to be promoted or not. The contacts 196 can be used as a supply or demand switch a card feeder, a distributor, a supply chute, a filling funnel of any kind, etc., which fibers need for further processes. If this * "next process indicates that it needs more fibers, the contacts 196 are closed, whereupon the motor 26 the boom 10 and the beater device 28 to the vertical axis of the column 12 rotates.

When the boom 10 rotates, the rotatable bat 86 rotates about its own longitudinal axis above or on top of the fiber balls, which on the bottom surface 22 according to the 7 to 9 are arranged. The grids 96, which are at intervals and spaced from each other along the bottom the beater device 28 are arranged to press down on the top of the fiber balls to the fibers after down while the racket teeth 94 rotate down below the level 98 of the grids 96 to remove fibers plucking from the ball or beating or scraping while the bat 86 rotates and uniformly in one Circle around the column 12 is moved forward. The plucked Fibers are drawn by a suction fan, not shown, up through the opening 108 into the lines vacuumed for transport to the processing equipment.

Since the index switch 182 is in its automatic position where contacts 188 are closed, power either cannot go to the 3M step-up electromag or get to the 4M down solenoids 202 of the up / down motor 80, since 2CR contacts 200 as well a time delay switch 204 are open. Therefore, the up / down motor 80 is prevented from being operated, while the boom 10 and club 86 rotate and hence the club assembly 28 remains on the same Height at which it executes its current circular movement around the column 12. However, if the 360 ° switch is 128 at a certain vertex position of the boom 10 is closed by means of the release device 132, a control relay 206 supplied with energy, whereby contacts 208 and 210 of the control relay 206 are closed. The previous one leaves the The boom 10 continues to rotate for a moment until the 360 ° limit switch 128 opens again, thereby reducing the energy supply of the control relay 206 is interrupted. On the other hand, by closing the contacts 210 when the control relay 206 is energized for the first time, a time delay relay 212 energized, which immediately its time delay switch or its contacts

204 closes. These contacts 204 remain closed for a predetermined period of time in the time delay relay 212 is set, what for example in a period of time can be set from 0 to 30 seconds. The length of time that contacts 204 are closed determines how far the Club device 28 is lowered, which will be explained in more detail below.

With the time delay switch 204 closed, the 4M step-down solenoids 202 are energized, whereby the up / down motor 80 rotates the chain 78 in the direction that the racket device 28 is following is moved down. This downward movement continues until the time delay switch or contacts Open 204 again, after which the club device 28 no longer moves downwards. In practice lie the parameters assigned to one another at a time delay of 30 seconds per 101.6 mm (4 inches) stroke and the normal allowable time delay is in the range of approximately 10 seconds. As I said before, this is the respective one Adaptable to requirements.

The racket device 28 is not screwed down continuously, but only in a stepped manner, wherein is lowered once per revolution by a predetermined amount, which is only done when the boom 10 is stopped can be. This prevents any problems in the starting process of the racket 86 as a function of the load moment and consequently, engine burnout problems are prevented.

The previous rotation of the boom 10 for the duration of one revolution, the stopping of the boom 10 and the lowering the racket device 28 by a certain amount and the renewed triggering of the rotation of the boom 10 are repeated cyclically until the beater device 28 triggers the lower limit switch 126. Closing this limit switch 126 has an energy

Energy supply of a second control relay 214 result, which instantly has its own contacts 126 to form of a hold circuit attracts. In addition, the control relay 214 opens its contacts 218 and 176. The opening the contact 218 is used to open a time setting circuit, that is, to prevent current from reaching the time delay relay 212 even if the 360 limit switch 128 in the method according to the invention should be closed in one way or another.

Opening the contacts 170, on the other hand, opens the circuit to the 1M electromagnets of the beater motor assembly 106, whereby the power supply of the racket motor device 106 is interrupted, und.the rotation of the rotatable bat 86 is stopped. A power supply to the control relay 214 also has its closing Contacts 200 result in the 3M step-up electromagnet 198 are energized so that the up / down motor 80 rotates the chain in a direction that moves the racquet assembly 28 upward will. The 3M electromagnets 198 also open their contacts 192, whereby the motor 26 of the boom 10 is prevented from rotating the boom 10 while the club device 28 is moved upwards. The same thing happens when the 4M step down electromagnet 202 is energized i.e. when their contacts 194 are open are to prevent rotation of the boom 10 during the downward movement of the racket device 28.

As the beater assembly 28 moves upward, workers can place a new set of bales in store one of the patterns described in FIGS. 7 to 9. Once the racket device 28 is normally closed upper switch 124 is reached, this switch 124 is opened, whereby the power supply of the Control relay 214 is interrupted, what a reopening of the closed contacts 200 and 216 and a reclosing the open contacts 176 and 218 result. The device for the bale breaker stops in this position

1 and waits for a manual actuation of the index switch I82 in order to lower the club device 28 to a position in which the bale breaker is ready to automatically remove fibers from the new set of

Pluck 5 bales out.

Claims (12)

Claims 1. Method for breaking textile fibers from bales in particular from the top, characterized in that: a) the size of outer and inner concentric circles is determined, between which bales to be broken be filed, b) the balls in the annular space between the concentric circles with their long and / or narrow sides flat are brought in butted orderly, c) a strip-shaped fibers arranged in a radial position between the circles over the tops of the balls of fibers rotating club is moved from there around the full circumference of the circles, d) the movement of the racket is stopped at the end of a circumferential cycle and the racket by a certain one Amount is reduced, OFFICE 6370 OBERURSF.I. LINDENSTRASSE 10 TEL. 06171'5684 ·?
TELEX 4186343 real d the last two steps are repeated continuously until a desired amount of broken fibers has been generated. BUUO 8050 FKEISING 'SCHNEGGSTRASSE 3-5 TEL. 08161/62091 TELEX 526S47 pawa d BRANCH OFFICE 8390 PASSAU LUDWIGSTRASSE 2 TEL. 08 Sl / 3 6616 ■ IKLEGRAMMADKESSI: PAWAMUC - POSTSCHECK MUNICH 1360 52-802 ■ - TELECOPY: 08161/62096 (GROUP II - automat.) - 2. The method according to claim 1, characterized in that on two diametrically opposite sides of the annular space each have an inner layer made up of two adjacent balls with their narrow sides and an outer layer from a bale covering the gap between the inner bale (Fig. 7, 8, 9). 3. The method according to claim 2, characterized in that the distance between the inner layers on both sides of the inner circle is bridged by bales arranged transversely to the layers. 4. The method according to claim 3, characterized in that the diameter of the inner circle with one of the length a length corresponding to a longitudinal side of a bale is chosen, and that all inner bales correspond to the inner one Circle are arranged with their long sides adjacent (Fig. 7). 5. The method according to claim 2, characterized in that all bales in mutually parallel alignment their long sides are arranged (Fig. 8, 9). 6. Device for breaking bales of textile fibers that are on a floor surface within a circular, between outer and inner concentric circles, characterized by: a) a rotatable club device (28) the length of which is essentially equal to the difference in the radii of the is concentric circles, and which has a plurality of arranged along its length and around its circumference, having fiber-plucking racket teeth (94), and which has a plurality of devices (grid 96) to press down on the bales (134, 136, 142, 144, 146, 148, 150, 152, 154, 156), while the racket teeth (94) when the racket (86) is rotating pluck. b) a device (racket motor device 106) for rotating the racket device (28) about its longitudinal axis, c) a frame device (boom part 10, pillars 14, 16), which the racket device (28) in the radial direction and above between the concentric Keeps circling, d) a device (motor 26, chain 24) that controls the frame device (Boom part 10, supports 14, 16) rotates around the center of the circles, the racket device (28) the bottom surface lying in the radial direction between the concentric circles (22) brushed over, e) an up / down device (motor 80, sprockets 70, 72, -74, 76, 84, reduction gear 82, chain 78), which the racket device (28) in the Frame device (boom part 10, supports "14,16) raises and lowers relative to the bottom surface (22), and f) a cyclically actuated, automatic device, each after one, by the device (motor 26, chain 24) for a certain period of time caused rotation of the frame device (boom part 10, legs 14 and 16) the racket device (28) automatically by means of the up / down device (Motor 80, sprockets 70, 72, 72, 78, 84, reduction gear 82, chain 78) by a predetermined Route to the bottom surface (22) lowers. 7. Apparatus according to claim 6, characterized in that a device for pulling out the plucked Fibers from the racket device (28) are provided, which have a line device (transfer line 110, Line, 112, corner line 116, 122, line part 120) with telescopic sections for adaptation to the Height differences caused by the upward and downward movement of the racket device (28) and the one that is angled and arranged centrally above the center of the concentric circles Has rotating device and a sliding connection for adjusting the central arrangement of the line device. 8. Apparatus according to claim 6, characterized in that OCE predetermined rotational angle ■ of rotation of the frame means (boom section 10, Stützenl4, 16) 360 °. 9. Device according to one of claims 6 to 8, characterized in that an adjustable time delay device (Time delay switch 204, time delay relay 212) - in the automatic device for Determination of the time is provided in which the racket device (28) between the predetermined Periods of time moved towards the bottom surface (22). 10. Device according to one of claims 6 to 9, characterized in that a device (control relay 214) provided that the device (motor 26, chain 24) for rotating the frame device (boom part 10, Supports 14, 16) will last until and unless the facility (Club motor device 106) is ready to rotate the club device (28). 11. Device according to one of claims 6 to 10, characterized characterized that a device (index switch 182) for manual operation of the up / down device (motor 80, sprockets 70, 72, 74, 76, 84, Reduction gear 82, chain 78) is provided, which raises and lowers the racket device (28), and that a device (Kontkate 188) is provided, which the manually operated device (index switch 182) automatically prevents an upward or downward movement, unless the manually operated device (index switch 182) actually from Is hand operated. 12. Device according to one of claims 6 to 11, characterized <j indicates that the automatic device that the device (motor 26, chain 24) for rotating the frame device (boom part 10, supports 14, 16) stops after each rotation and which the striker device (28) automatically by a predetermined distance IQ lowers while the facility (motor 26, chain 24) to rotate the frame device (boom part 10, supports 14, 16) is stopped and the rotation the frame device (boom part 10, supports 14, 16) causing device (motor 26, chain 24) automatically starts again, is provided, and that a device to prevent the actuation of the up / Down device (motor 80, sprockets 70, 72, 74, 76, 84, reduction gears 82, chain 78) are provided is, while the device (motor 26, chain 24) the frame device (boom part 10, supports 14, 16) rotates over the bottom surface (22).