Guardrail net bending machine
Technical Field
The invention relates to bending equipment, in particular to a guardrail net bending machine, and belongs to the technical field of guardrail net processing equipment.
Background
The guardrail is a fence, and is mainly used for protecting personal safety and equipment in occasions such as houses, highways, business areas and public places, the guardrail is visible everywhere in life, and the shape and the height of the guardrail are different in different areas, when the guardrail is used, a guardrail net is sometimes adopted, the guardrail is made through a metal net with a net-shaped structure, when the guardrail is used, the guardrail net needs to be bent, the upper end of the guardrail net is inclined at a certain angle, a better protecting effect is achieved, and then a bending machine is used for bending the guardrail net.
The guardrail net bending machine comprises a base, a frame, a rotating shaft, a pressing plate, a rotating shaft position detection mechanism, a rotating shaft power device and at least two limiting mechanisms for limiting a guardrail net to be bent, wherein the frame is arranged on the base, the rotating shaft is arranged on the frame, the pressing plate is fixedly connected with the rotating shaft, the limiting mechanisms are fixed on the frame, the rotating shaft power device at least comprises a rocker arm, a connecting piece and a hydraulic cylinder connected with a hydraulic source, one end of the rocker arm is fixedly connected with the rotating shaft, the other end of the rocker arm is hinged with one end of the connecting piece, the other end of the connecting piece is fixedly connected with the free end of a piston rod of the hydraulic cylinder, and the other end of the hydraulic cylinder is hinged on the base. The guardrail net bending machine can reduce labor intensity of workers and improve bending efficiency.
And if the publication number is CN 210305231U, the guardrail net piece bending machine comprises a bending machine body and a guardrail net piece supporting frame, wherein the guardrail net piece supporting frame is positioned at the rear of the bending machine body, a control box is fixedly arranged on the outer surface of one side of the bending machine body, sliding rails are fixedly arranged at two ends of the inner surface of the bending machine body through bolts, a sliding plate is movably arranged on the sliding rails, a plurality of groups of hydraulic lifting columns are arranged at the top end of the inside of the bending machine body, and the lower ends of the plurality of groups of hydraulic lifting columns are fixedly connected with the upper ends of the sliding plates. According to the guardrail net piece bending machine, firstly, the position of the sliding plate can be limited, the situation that the sliding plate is inclined due to collision in the long-term use process is avoided, the guardrail net piece can be driven to move, the workload of operators is reduced, the cooperation of multiple people is not needed, the labor cost is greatly reduced, and finally, the sliding plate bending machine is convenient for people to replace different bending dies, and better use prospects are brought.
And the bending machine for the guardrail net piece comprises a bending frame, wherein scales are arranged on the upper surface of the bending frame, the bending frame is of a U-shaped opening structure, a connecting rod is arranged on the inner side of the opening end, a sliding table is slidably arranged in the bending frame, a second screw rod is arranged on the side wall of the sliding table through threads, two ends of the second screw rod penetrate out of the sliding table, the second screw rod is in rotary connection with the connecting rod, and the second screw rod is in rotary connection with the bending frame. The bending device has the beneficial effects that reciprocating bending of the guardrail net piece is realized through reciprocating rotation of the bending rod I and the bending rod II, the operation is more convenient, the workload of operators is greatly reduced, the bending efficiency is improved, the guardrail net piece can be pressed on the sliding table through the screw rod I, the sliding table is pushed to move through the rotating screw rod II, the guardrail net piece can be accurately moved to the bending position under the reference of scales, and the bending precision is improved.
When using, the manual work has been practiced thrift greatly, when bending to the guardrail net, have high-efficient swift advantage, however along with modern guardrail net to the requirement of bending more and more, some guardrail nets now, in order to improve stronger protective effect, can bend mutually both sides in the upper end of guardrail net, whole guardrail net becomes Y type structure promptly, and when bending when adopting current bender, lead to unable operation, be inconvenient for use, and when using, because guardrail net adopts the metal to make, when bending, there is great stress, leads to bending after taking place to kick-backing, influence bending effect.
In view of the above, the invention is provided, when in use, not only the side of the guardrail net can be bent, but also the guardrail net can be conveniently bent into a Y-shaped structure at one time, the use is convenient, the operation is convenient, the bending requirement of the guardrail net can be conveniently met, the stress can be eliminated, and the bending effect can be improved.
Disclosure of Invention
The invention aims to solve the problems and provide the guardrail net bending machine, which is convenient for bending two sides of the guardrail net to form a Y-shaped structure when in use, is convenient for eliminating stress of bending positions, reduces rebound effect and further improves bending effect.
The invention realizes the purpose through the following technical scheme, the guardrail net bending machine comprises a frame body component, wherein one end of the frame body component is fixedly provided with a pressing component, the other side of the pressing component is fixedly provided with an auxiliary bending component, the frame body component is fixedly provided with a stretch bending component at two sides of one end of the pressing component, one end of the stretch bending component extends to one side of the auxiliary bending component, the middle position of the stretch bending component is positioned at the upper end of the pressing component, the auxiliary bending component comprises an upper bending component and a lower bending component, the upper bending component and the output end of the lower bending component are staggered, the pressing component comprises a fixed plate, pressing cylinders are fixedly arranged above two ends of the fixed plate, one end of the pressing cylinder is fixedly provided with an upper pressing plate, one side of the fixed plate and one side of the upper pressing plate are fixedly provided with a fixed strip, the inside of the fixed strip is fixedly provided with a heating wire, the middle position of the stretch bending component is positioned at the upper end of the pressing component, the upper bending component is clamped with the upper bending component, the upper bending component is fixedly provided with a notch, the guardrail net is cut and the upper bending component is fixedly arranged at one side of the upper bending component, the upper bending component is fixedly provided with a notch, the upper bending component is cut and the upper bending component is fixedly arranged at one side of the upper bending component, the upper bending component is required to be cut, the upper bending component is opened and the upper bending component is fixedly provided with a notch, and the guardrail net is cut and the upper bending component is cut and fixed at one side when the upper bending component is required to be fixed, and the upper bending component is opened, and upper bending component is opened and upper side upper component is placed, one end of the guardrail net passes through the pressing component, the guardrail net is pressed by the pressing component, when the guardrail net is pressed, the upper pressing plate descends by the pressing cylinder, the guardrail net is pressed between the upper pressing plate and the fixing plate, the fixing strip is pressed with the guardrail net, the heating wire is started, the fixing strip and the guardrail net are heated by the heating wire, and when the guardrail net is bent, the guardrail net is bent from the heated position, so that the effect of conveniently bending is improved, the stress after bending is eliminated, the rebound is avoided after the processing is finished, the auxiliary bending component is started after the heating, the upper bending assembly and the lower bending assembly are used for alternately bending two sides of one end of the guardrail net, after bending, the auxiliary bending assembly is closed, the height of the bending assembly is adjusted, one end of the bending assembly is located between the guardrail nets which are bent on two sides, the bending assembly is used for further bending the guardrail net, the guardrail net is made to form a Y-shaped structure, after bending, the output end of the bending assembly is adjusted on one side of the guardrail net, the height of the guardrail net is adjusted, the pressing cylinder is opened, the upper pressing plate is enabled to ascend, the guardrail net is continuously output through the frame body assembly, the guardrail net is output by the technical scheme, and bending processing of the guardrail net is completed.
Further, the upper bending component comprises a clamping strip fixedly arranged on the upper surface of the fixed plate, the clamping strip is clamped in the notch, an upper sliding strip is fixedly arranged on one side between the clamping strips, an upper sliding block is uniformly clamped on the upper sliding strip, a first auxiliary cylinder is fixedly arranged on one side of the upper sliding block, a first lifting seat is fixedly arranged at the output end of the first auxiliary cylinder, a first bending shaft is rotatably arranged in the first lifting seat, the lower bending component comprises a lower sliding strip, a lower sliding block is uniformly clamped on the lower sliding strip, the upper sliding block is staggered with the vertical position of the lower sliding block, a second auxiliary cylinder is fixedly arranged on one side of the lower sliding block, a second lifting seat is fixedly arranged at the output end of the second auxiliary cylinder, the second bending shaft is rotatably arranged in the second lifting seat, threaded holes are formed in the upper sliding strip, the upper sliding block, the lower sliding strip and the lower sliding block, screws are connected to the internal threads of the threaded holes, the upper sliding block is fixedly arranged on the upper sliding strip through the screws, the lower sliding block is fixedly arranged on the lower sliding strip through the screws, when auxiliary bending is carried out, the upper sliding block is firstly positioned on the upper sliding strip by adjusting the position of the upper sliding block, the lower sliding block is positioned on the lower sliding strip, the positions between the upper sliding block and the lower sliding block are staggered, when auxiliary bending is carried out, the first auxiliary cylinder and the second auxiliary cylinder are started, the first bending shaft and the second bending shaft are used for pressing the protective net, and the two sides of the protective net are bent, the bending machine is convenient to bend in advance, so that one end of the protective net is bent at two sides of the protective net to form an included angle, the bending assembly is convenient to bend in a further pressing mode, the bending effect is improved, and the Y-shaped structure is convenient to form.
Further, the frame body component comprises a conveying frame, the fixed plate is fixedly arranged on one side of the conveying frame, through holes are formed in two sides of the middle position of the conveying frame, the lower surface of the conveying frame is located on two sides of the through holes, vertical plates are fixedly arranged on the middle of the vertical plates, a rotating shaft is rotatably arranged in the middle of the vertical plates, conveying wheels are fixedly arranged at two ends of the rotating shaft, a deflector rod is fixedly arranged on the outer side of each conveying wheel in a circumferential array mode, one end of the deflector rod penetrates through the through holes and extends to the upper end of the through holes, a driving motor is fixedly arranged at the middle position of one side of the lower end of the conveying frame, a driving belt pulley is fixedly arranged at the output end of the driving motor, a driven belt pulley is fixedly arranged at the middle position of the rotating shaft, a belt is arranged between the driving belt pulley and the driven belt pulley, a groove is fixedly arranged on one side of the through holes, a bidirectional rotating shaft is internally installed in the groove, a positioning plate is connected with a guide screw rod, a guide screw rod is fixedly arranged at one end of the two-way, and is connected with the guide screw rod, when the guide screw rod is screwed on one end of the guide screw rod is screwed, the guide screw rod is screwed on one end of the guide screw rod is further, and the guide screw rod is further screwed on the two-way, the guide screw rod is conveniently positioned at one end of the guide screw rod is screwed, and the guide screw rod is screwed on the guide screw rod is positioned on the two end of the guide screw rod, and the guide belt is positioned on the guide belt. The deflector rod is inserted into a gap of the protective net, so that the protective net can be conveniently moved on the conveying frame, and conveying is convenient.
Further, the stretch bending assembly comprises fixing pieces, the fixing pieces are fixedly arranged on two sides of the frame body assembly, lifting blocks are connected between the fixing pieces in a sliding clamping mode, one ends of the lifting blocks are fixedly provided with stretch bending air cylinders, the output ends of the stretch bending air cylinders penetrate through the lifting blocks and extend to the other sides of the lifting blocks, tensioning plates are fixedly arranged at the output ends of the stretch bending air cylinders, stretch bending shafts are rotatably arranged between the tensioning plates, the stretch bending shafts are located on one side of the auxiliary bending assembly, sliding grooves are vertically formed in the middle of the fixing pieces, the lifting blocks are slidably clamped in the sliding grooves, lifting plates are fixedly arranged in the middle of the lifting blocks, one sides of the lifting plates are located right above the upper pressing holding plates, guide posts are fixedly arranged on two sides of the upper surfaces of the upper pressing holding plates, connecting plates are fixedly arranged at the upper ends of the guide posts, a motor in the upper surfaces of the connecting plates, a threaded rod is fixedly arranged at the positions of the upper surface of the connecting plates, the servo motor is fixedly connected with the threaded rod, the threaded rod is sleeved on the threaded rod through the threaded rod, the threaded connecting holes are formed in the threaded connecting positions of the guide plates, and the threaded connecting plates are rotatably connected with the threaded rods, and the threaded rods are arranged on the threaded rods in a sleeved mode, the lifting block is arranged inside the fixing piece and is lifted inside the sliding groove, the height of the stretch bending shaft is conveniently adjusted, and when stretch bending is carried out, the stretch bending cylinder is opened, so that the stretch bending shaft moves in the direction of the frame body assembly, further the protective net is conveniently bent, and the protective net is convenient to use.
The invention has the technical effects and advantages that when the guardrail is used, the bending position is heated by the fixing strip and the heating wire, so that the bending effect is improved, the stress of the bending position is eliminated, the rebound is avoided, the two sides of the staggered guardrail net are bent by adopting the auxiliary bending assembly, and then the bending position of the guardrail net forms a Y-shaped structure by adopting the stretch bending assembly, so that the bending requirement of the guardrail net at present is met, and the guardrail net is convenient to use.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of another angle of the present invention;
FIG. 3 is a schematic view of a frame assembly according to the present invention;
FIG. 4 is a schematic view of another angle of the frame assembly according to the present invention;
FIG. 5 is a schematic view of the structure of the pressure assembly of the present invention;
FIG. 6 is a partially enlarged schematic illustration of the structure of the present invention;
FIG. 7 is a schematic view of a stretch bending assembly according to the present invention;
FIG. 8 is a schematic view of a partial structure of a stretch bending assembly according to the present invention;
FIG. 9 is a schematic diagram of a finished guardrail net bent by the invention;
In the figure, 1, a frame body assembly, 101, a conveying frame, 102, a through hole, 103, a vertical plate, 104, a rotating shaft, 105, a conveying wheel, 106, a deflector rod, 107, a driving motor, 108, a movable belt pulley, 109, a slave belt pulley, 1010, a belt, 1011, a groove, 1012, a bidirectional screw rod, 1013, a locating plate, 1014 and a hand wheel;
2. The device comprises a pressing and holding assembly, a fixing plate, a 202 pressing and holding cylinder, a 203 upper pressing and holding plate, 204 fixing strips, 205 heating wires, 206 and a notch;
3. An auxiliary bending assembly;
301. The upper bending assembly comprises 30101, a clamping strip, 30102, an upper sliding strip, 30103, an upper sliding block, 30104, a first auxiliary cylinder, 30105, a first lifting seat and 30106, and a first bending shaft;
302. The lower bending assembly, 30201, a lower sliding bar, 30202, a lower sliding block, 30203, a second auxiliary cylinder, 30204, a second lifting seat, 30205 and a second bending shaft;
4. The device comprises a stretch bending assembly, a fixing piece, a 402, a lifting block, a 403, a stretch bending cylinder, a 404, a tensioning plate, a 405, a stretch bending shaft, a 406, a chute, a 407, a lifting plate, a 408, a guide post, a 409, a connecting plate, a 4010, a servo motor, a 4011, a threaded rod, a 4012, a guide hole and a 4013, and a threaded pipe;
5. A threaded hole;
6. And (5) a screw.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, a guardrail net bending machine includes a frame assembly 1, wherein a pressing assembly 2 is fixedly installed at one end of the frame assembly 1, an auxiliary bending assembly 3 is fixedly installed at the other side of the pressing assembly 2, a stretch bending assembly 4 is fixedly installed at two sides of one end of the pressing assembly 2 on the frame assembly 1, one end of the stretch bending assembly 4 extends to one side of the auxiliary bending assembly 3, a middle position of the stretch bending assembly 4 is located at the upper end of the pressing assembly 2, the auxiliary bending assembly 3 includes an upper bending assembly 301 and a lower bending assembly 302, the upper bending assembly 301 and an output end of the lower bending assembly 302 are staggered, the pressing assembly 2 includes a fixing plate 201, a pressing cylinder 202 is fixedly installed above two ends of the fixing plate 201, an upper pressing plate 203 is fixedly installed at one end of the pressing cylinder 202, fixing strips 204 are fixedly installed at one sides of the fixing plate 201 and the upper pressing plate 203, and the heating wire 205 is fixedly arranged in the fixing strip 204, the output end of the holding cylinder 202 is fixedly connected with the fixing plate 201, the holding cylinder 202 is fixedly arranged on the upper holding plate 203, the auxiliary bending component 3 is fixedly arranged on the fixing plate 201, two ends of one side of the upper holding plate 203 are provided with notches 206, one side of the auxiliary bending component 3 is slidably clamped with the notches 206 on the upper holding plate 203, when in use, the staggered position between the upper bending component 301 and the lower bending component 302 is firstly regulated, the requirement of bending the guardrail net is met, the guardrail net needing bending is placed on the frame component 1, when in processing, the opening is cut at first at one end of the guardrail net needing bending, the guardrail net is conveyed through the frame component 1, one end of the guardrail net penetrates through the holding component 2, and then hold the guardrail net through holding subassembly 2, when holding, make to hold the board 203 and hold down through holding the cylinder 202 by pressure, hold the guardrail net between holding the board 203 and fixed plate 201 by pressure, and make fixed strip 204 compress tightly mutually with the guardrail net, and open heater strip 205, make heater strip 205 heat fixed strip 204 and guardrail net, and then when bending, bend from the position of heating, not only improve the effect of conveniently bending, also eliminate the stress after bending, avoid leading to producing the resilience after processing is accomplished, after heating, open supplementary bending subassembly 3, make the output of going up bending subassembly 301 and lower bending subassembly 302 bend to the both sides of guardrail net in turn, after bending, close supplementary bending subassembly 3, and adjust the height of stretch bending subassembly 4, make the one end of stretch bending subassembly 4 be located between the guardrail net that bends to the both sides, and through stretch bending subassembly 4, further carry out the guardrail net, make the guardrail net form Y type structure, after bending, with the output of bending subassembly 4 hold the opposite ends, and make the opposite ends of bending subassembly 202, and make the output of bending subassembly 203, and continue to carry out the processing scheme, and make the output of bending the guardrail net, and the top through holding the cylinder, and the top bending subassembly is opened, and the technological scheme is continued.
The upper press bending assembly 301 comprises clamping strips 30101, the clamping strips 30101 are fixedly arranged on the upper surface of the fixed plate 201, the clamping strips 30101 are clamped in the gaps 206, one side between the clamping strips 30101 is fixedly provided with upper sliding strips 30102, the upper sliding strips 30102 are uniformly clamped with upper sliding blocks 30103, one side of each upper sliding block 30103 is fixedly provided with a first auxiliary cylinder 30104, the output end of each first auxiliary cylinder 30104 is fixedly provided with a first lifting seat 30105, the inside of each first lifting seat 30105 is rotatably provided with a first press bending shaft 30106, the lower press bending assembly 302 comprises lower sliding strips 30201, the lower sliding strips 30201 are uniformly clamped with lower sliding blocks 30202, the upper sliding blocks 30103 are staggered with the vertical positions of the lower sliding blocks 30202, one side of each lower sliding block 30202 is fixedly provided with a second auxiliary cylinder 30203, the output end of each second auxiliary cylinder 30203 is fixedly provided with a second lifting seat 30204, the second bending shaft 30205 is rotatably arranged in the second lifting seat 30204, threaded holes 5 are formed in the upper sliding bar 30102, the upper sliding block 30103, the lower sliding bar 30201 and the lower sliding block 30202, screws 6 are connected to the internal threads of the threaded holes 5, the upper sliding block 30103 is fixedly arranged on the upper sliding bar 30102 through the screws 6, the lower sliding block 30202 is fixedly arranged on the lower sliding bar 30201 through the screws 6, when auxiliary bending is performed, firstly, the position of the upper sliding block 30103 on the upper sliding bar 30102 is adjusted, the position of the lower sliding block 30202 on the lower sliding bar 30201 is adjusted, the positions between the upper sliding block 30103 and the lower sliding block 30202 are staggered, when auxiliary bending is performed, the first auxiliary cylinder 30104 and the second auxiliary cylinder 30203 are started, the first bending shaft 30106 and the second bending shaft 30205 press the protection net, the two sides of the protection net are bent, the protection net is bent conveniently, one end of the protection net is bent due to the two sides of the protection net, an included angle is formed, the bending component 4 is convenient to bend further, the bending effect is improved, and the Y-shaped structure is convenient to form.
The frame body assembly 1 comprises a conveying frame 101, a fixing plate 201 is fixedly arranged on one side of the conveying frame 101, through holes 102 are formed in two sides of the middle position of the conveying frame 101, vertical plates 103 are fixedly arranged on two sides of the lower surface of the conveying frame 101, a rotating shaft 104 is rotatably arranged in the middle of each vertical plate 103, conveying wheels 105 are fixedly arranged at two ends of each rotating shaft 104, a deflector rod 106 is fixedly arranged on the outer side of each conveying wheel 105 in a uniform circumferential array, one end of each deflector rod 106 penetrates through the corresponding through hole 102 and extends to the upper end of the corresponding through hole 102, a driving motor 107 is fixedly arranged in the middle position of one side of the lower end of the conveying frame 101, a movable belt pulley 108 is fixedly arranged at the output end of each driving motor 107, a driven belt pulley 109 is fixedly arranged at the middle position of each rotating shaft 104, a belt 1010 is regulated between each movable belt pulley 108 and each driven belt pulley 109, the driving motor 107 drives the corresponding rotating shaft 104 through the belt 1010, the upper surface of the conveying frame 101 is fixedly provided with a groove 1011 at one side of the through hole 102, a bidirectional screw rod 1012 is rotatably arranged in the groove 1011, two ends of the bidirectional screw rod 1012 are connected with a positioning plate 1013 in a threaded manner, the positioning plate 1013 is of an L-shaped structure, the lower end of the positioning plate 1013 is clamped in the groove 1011, one end of the bidirectional screw rod 1012 extends to the outer side of the conveying frame 101, one end of the bidirectional screw rod 1012 is fixedly provided with a hand wheel 1014, when conveying is carried out, the hand wheel 1014 is screwed first, the distance between the positioning plates 1013 is adjusted, and therefore, limiting is carried out on two sides of a protective net, when conveying is carried out, the protective net is prevented from being deviated, a driving motor 107 is started, a rotating shaft 104 is rotated through a belt 1010, and then the conveying wheel 105 drives a deflector 106 to rotate, the deflector 106 is spliced in a gap on the protective net through the deflector 106, and then the protection net is convenient to move on the conveying frame 101 and is convenient to convey.
The stretch bending component 4 comprises a fixing piece 401, the fixing piece 401 is fixedly arranged at two sides of the frame component 1, a lifting block 402 is clamped between the fixing pieces 401 in a sliding way, one end of the lifting block 402 is fixedly provided with a stretch bending cylinder 403, the output end of the stretch bending cylinder 403 penetrates through the lifting block 402 and extends to the other side of the lifting block 402, a tensioning plate 404 is fixedly arranged at the output end of the stretch bending cylinder 403, a stretch bending shaft 405 is rotatably arranged between the tensioning plates 404, the stretch bending shaft 405 is positioned at one side of the auxiliary bending component 3, a sliding groove 406 is vertically arranged in the middle of the fixing piece 401, the lifting block 402 is clamped in the sliding groove 406 in a sliding way, a lifting plate 407 is fixedly arranged in the middle of the lifting block 402, one side of the lifting plate 407 is positioned right above the upper pressing plate 203, guide posts 408 are fixedly arranged at two sides of the upper surface of the upper pressing plate 203, the lifting plate 407 is sleeved on the guide posts 408, a connecting plate 409 is fixedly arranged at the upper ends of the guide posts 408, a servo motor 4010 is fixedly arranged in the middle of the upper surface of the connecting plate 409, a threaded rod 4011 is fixedly arranged at the output end of the servo motor 4010, the other end of the threaded rod 4011 is rotationally connected with the upper surface of the upper holding plate 203, the threaded rod 4011 is in threaded connection with the lifting plate 407, the lifting plate 407 is of a rectangular structure, guide holes 4012 are formed in two sides of the lifting plate 407, the lifting plate 407 is sleeved on the guide post 408 through the guide holes 4012, a threaded pipe 4013 is fixedly arranged in the middle of the upper surface of the lifting plate 407, the threaded rod 4011 is in threaded connection with the threaded pipe 4013, when stretch bending is performed, the threaded rod 4011 is driven to rotate by the servo motor 4010, the lifting plate 407 is further lifted along the threaded rod 4011, the lifting block 402 is lifted in a sliding groove 406 in the fixing part 401, and the height of the stretch bending shaft 405 is further adjusted, and when stretch bending is carried out, the stretch bending cylinder 403 is opened, so that the stretch bending shaft 405 and the frame body assembly 1 move in the direction, further the protective net is further bent, and the use is convenient.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.