Conveying device for trial production of hot-rolled ribbed steel bars and application method thereof

文档序号:1840531 发布日期:2021-11-16 浏览:27次 中文

阅读说明:本技术 一种热轧带肋钢筋试生产用输送装置及其使用方法 (Conveying device for trial production of hot-rolled ribbed steel bars and application method thereof ) 是由 戢俊强 王刚 宋进 王东 李文鹏 李志丹 魏星 于 2021-08-24 设计创作,主要内容包括:本发明公开了一种热轧带肋钢筋试生产用输送装置及其使用方法,所述的一种热轧带肋钢筋试生产用输送装置,包括输送台,所述输送台两侧顶部均固定连接有侧架,两个所述侧架相远离的一端均转动连接有外导向辊,所述输送台的顶部一端设有传动机构,所述输送台的顶部中部固定连接有第一顶架,本发明的有益效果是:通过交错设置的斜导向辊便于使钢筋在移动时保持居中,通过传动机构便于更好的对不同尺寸的钢筋进行输送,从而在钢筋尺寸发生变更时无需人力对设备进行调节,省时省力,通过降温机构便于更好的对钢筋进行降温,从而便于后续的加工以及收集,通过喷涂机构便于更好的对钢筋的外侧进行无死角涂料喷涂,提高钢筋的生产质量。(The invention discloses a conveying device for trial production of hot-rolled ribbed steel bars and a using method thereof, wherein the conveying device for trial production of the hot-rolled ribbed steel bars comprises a conveying table, side frames are fixedly connected to the tops of two sides of the conveying table, the ends, far away from the side frames, of the two side frames are rotatably connected with outer guide rollers, a transmission mechanism is arranged at one end of the top of the conveying table, and a first top frame is fixedly connected to the middle of the top of the conveying table, and the conveying device has the beneficial effects that: the oblique guide roll through crisscross setting is convenient for make the reinforcing bar keep between two parties when removing, be convenient for better carry not unidimensional reinforcing bar through drive mechanism to need not the manpower when the reinforcing bar size changes and adjust equipment, labour saving and time saving, be convenient for better cooling the reinforcing bar through cooling down the mechanism, thereby be convenient for subsequent processing and collection, be convenient for better outside to the reinforcing bar through spraying mechanism and carry out no dead angle coating spraying, improve the production quality of reinforcing bar.)

1. The conveying device for the trial production of the hot-rolled ribbed steel bars comprises a conveying table (1) and is characterized in that side frames (2) are fixedly connected to the tops of the two sides of the conveying table (1), two outer guide rollers (3) are rotatably connected to the ends, far away from the side frames (2), of the conveying table (1), a transmission mechanism (4) is arranged at one end of the top of the conveying table (1), a first top frame (5) is fixedly connected to the middle of the top of the conveying table (1), a cooling mechanism (6) is arranged at the top of the first top frame (5), an infrared sensor (7) is fixedly mounted at the top of one side, close to the transmission mechanism (4), of the first top frame (5), bent plates (8) are fixedly mounted at the top of the conveying table (1) and below the first top frame (5) in an equidistant and staggered mode, and inclined guide rollers (9) are rotatably connected to the tops of the inner sides of the bent plates (8), a spraying mechanism (10) is arranged at the top of the conveying table (1) and at one end far away from the transmission mechanism (4), and a control panel (11) is fixedly installed on one side of the conveying table (1);

the transmission mechanism (4) comprises two mounting frames (41), the edges of two ends of the top of the conveying table (1) are fixedly connected with the mounting frames (41), a first sliding chute (42) is formed in the top of the mounting frame (41), a sliding block (43) is connected inside the first sliding chute (42) in a sliding manner, an upper guide roller (44) is rotatably connected between the two sliding blocks (43), a first spring (45) is fixedly connected between the top of the sliding block (43) and the top of the inner wall of the first sliding chute (42), a lower guide roller (46) is rotatably connected with the top of the conveying platform (1) and is positioned right below the upper guide roller (44), a second sliding chute (47) is arranged at one side of the conveying platform (1), a mounting plate (48) is connected inside the second sliding chute (47) in a sliding manner, and a second spring (49) is fixedly connected to the top of the mounting plate (48) and positioned in the second sliding groove (47).

2. The conveying device for the trial production of the hot-rolled ribbed steel bars as claimed in claim 1, wherein the transmission mechanism (4) further comprises a motor (410) and a transmission belt (413), the motor (410) is fixedly mounted at the top of the mounting plate (48), a driving pulley (411) is fixedly connected to an output shaft of the motor (410), a driven pulley (412) is coaxially connected to one side of the slider (43) and the upper guide roller (44), the driving pulley (411) and the driven pulley (412) are both located in the same horizontal plane, and the driving pulley (411) and the driven pulley (412) are in transmission connection through the transmission belt (413).

3. The conveying device for the trial production of the hot-rolled ribbed steel bars as claimed in claim 2, wherein the cooling mechanism (6) comprises a splitter plate (61), the splitter plate (61) is fixedly mounted at the top of the first top frame (5), first spray nozzles (62) are arranged at the bottoms of the splitter plates (61) and extend to the bottom of the first top frame (5) at equal intervals, a connecting pipe (63) is mounted in the middle of the top of the splitter plate (61), a first water pump (64) is arranged at the top of the first top frame (5), and one end, away from the splitter plate (61), of the connecting pipe (63) is connected with an output end of the first water pump (64).

4. The conveying device for the trial production of the hot-rolled ribbed steel bars as claimed in claim 3, wherein the input end of the first water pump (64) is communicated with an external cooling water source, and the first spray head (62) is communicated with the connecting pipe (63) through the flow distribution plate (61).

5. The conveying device for trial production of the hot-rolled ribbed steel bar according to claim 3, wherein the spraying mechanism (10) comprises a second top frame (101), one end of the top of the conveying table (1) far away from the transmission mechanism (4) is fixedly connected with the second top frame (101), one end of the top of the second top frame (101) is fixedly provided with a paint bottle (102), one end of the top of the second top frame (101) far away from the paint bottle (102) is fixedly provided with a second water pump (103), an input end of the second water pump (103) is connected with a material pumping pipe (104), an output end of the second water pump (103) is connected with a material conveying pipe (105), the bottom of the second top frame (101) is fixedly connected with a flow distribution ring (106), second spray nozzles (107) are equidistantly arranged on the inner side of the flow distribution ring (106), a collecting groove (108) is formed in the top of the conveying table (1) and is positioned right below the flow distribution ring (106), a collecting pipe (109) is fixedly installed inside the conveying table (1), and the top of the collecting pipe (109) is communicated with the bottom of the collecting tank (108).

6. The conveying device for the trial production of the hot-rolled ribbed steel bars as claimed in claim 5, wherein the pumping pipe (104) is of an L-shaped structure, one end of the pumping pipe (104) far away from the second water pump (103) extends to the bottom of the interior of the paint bottle (102), one end of the conveying pipe (105) far away from the second water pump (103) extends to the bottom of the second top frame (101) and is communicated with the flow dividing ring (106), and a feeding hole is formed in the top of the paint bottle (102).

7. The conveyor apparatus for trial production of hot rolled ribbed steel bars as claimed in claim 5, wherein the top of the side frame (2), the top of the lower guide roll (46), one end of the top of the inclined guide roll (9), and the middle of the diverter ring (106) are all located in the same horizontal plane.

8. The conveying device for trial production of the hot-rolled ribbed steel bar according to claim 5, wherein the infrared sensor (7), the motor (410), the first water pump (64) and the second water pump (103) are electrically connected with the control panel (11).

9. The use method of the conveying device for trial production of the hot-rolled ribbed steel bar according to any one of claims 1 to 8, characterized by comprising the steps of:

firstly, moving equipment to a specified position and electrifying, then starting a motor (410) through a control panel (11), wherein the motor (410) drives a driving belt pulley (411) to rotate so as to drive a driven belt pulley (412) to rotate clockwise, the driven belt pulley (412) drives an upper guide roller (44) to rotate so as to drive a lower guide roller (46) to rotate reversely, at the moment, a steel bar is plugged between the upper guide roller (44) and the lower guide roller (46), and the steel bar moves towards the direction of a first top frame (5) along with the rotation of the upper guide roller (44);

step two, when the reinforcing steel bar moves to the bottom of the first top frame (5), the reinforcing steel bar is kept centered in the moving process through the inclined guide roller (9), meanwhile, the infrared sensor (7) detects the reinforcing steel bar, the first water pump (64) is started through the control panel (11), an external water source sequentially passes through the first water pump (64) and the connecting pipe (63) and then is shunted through the shunt plate (61) to be sprayed out from the first spray head (62), and the reinforcing steel bar is cooled;

step three, when the cooled steel bars move to the inner side of the diverter ring (106), the second water pump (103) is started through the control panel (11), the second water pump (103) pumps out the coating in the coating bottle (102) through the material pumping pipe (104), the coating is conveyed into the diverter ring (106) through the material conveying pipe (105), the coating is sprayed out of a plurality of second spray heads (107) after being diverted through the diverter ring (106), multi-angle spraying is carried out on the steel bars, meanwhile, the redundant coating falls into the collecting tank (108), and the coating is converged and flows out through the collector pipe (109), so that the coating can be collected and reused;

and step four, repeating the operation to complete continuous steel bar conveying work.

Technical Field

The invention relates to the technical field of steel bar production, in particular to a conveying device for trial production of hot-rolled ribbed steel bars and a using method thereof.

Background

Deformed steel bar is commonly known as hot rolled ribbed steel bar. The grade of the common hot rolled steel bar is composed of HRB and the minimum value of the yield point of the grade. H. R, B are respectively the first English letters of hot rolling (Hotrolled), Ribbed (Ribbed) and reinforcing steel bar (Bars). Need carry the defeated material through conveyor after the ejection of compact of hot rolling ribbed steel bar pilot scale, but current hot rolling ribbed steel bar pilot scale is with conveyor can't be better carry the not unidimensional reinforcing bar, and can't cool down or paint spraying when defeated material, need operate in addition.

Disclosure of Invention

The invention aims to provide a conveying device for trial production of hot-rolled ribbed steel bars and a using method thereof, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a conveying device for trial production of hot-rolled ribbed steel bars comprises a conveying table, wherein side frames are fixedly connected to the tops of two sides of the conveying table, the ends, far away from the two side frames, of the two side frames are rotatably connected with outer guide rollers, a transmission mechanism is arranged at one end of the top of the conveying table, a first top frame is fixedly connected to the middle of the top of the conveying table, a cooling mechanism is arranged at the top of the first top frame, an infrared sensor is fixedly mounted at the top of one side, close to the transmission mechanism, of the first top frame, bent plates are fixedly mounted at the top of the conveying table and below the first top frame in an equidistant and staggered mode, inclined guide rollers are rotatably connected to the top of the inner side of each bent plate, a spraying mechanism is arranged at the top of the conveying table and one end, far away from the transmission mechanism, and a control panel is fixedly mounted at one side of the conveying table;

drive mechanism includes two mounting brackets, carry the equal fixedly connected with mounting bracket in top both ends edge of platform, first spout has been seted up at the top of mounting bracket, the inside sliding connection of first spout has the slider, two rotate between the slider and be connected with the guide roll, the first spring of fixedly connected with between the top of slider and the inner wall top of first spout, carry the top of platform and be located the guide roll under rotate and be connected with down the guide roll, carry one side of platform and seted up the second spout, the inside sliding connection of second spout has the mounting panel, the top of mounting panel just is located the inside fixedly connected with second spring of second spout.

Preferably, drive mechanism still includes motor and driving belt, the top fixed mounting of mounting panel has the motor, the output shaft fixedly connected with drive pulley of motor, one side and the last guide roll coaxial coupling of slider have driven pulley, drive pulley and driven pulley all are located same horizontal plane, just drive pulley and driven pulley carry out the transmission through driving belt and connect.

Preferably, cooling mechanism includes the flow distribution plate, the top fixed mounting of first roof-rack has the flow distribution plate, bottom and the equidistance that the flow distribution plate bottom extended to first roof-rack are equipped with first shower nozzle, the top mid-mounting of flow distribution plate has the connecting pipe, the top of first roof-rack is equipped with first water pump, the one end that the flow distribution plate was kept away from to the connecting pipe is connected with the output of first water pump.

Preferably, the input end of the first water pump is communicated with an external cooling water source, and the first nozzle is communicated with the connecting pipe through the flow distribution plate.

Preferably, the spraying mechanism includes the second roof-rack, carry the top of platform and keep away from drive mechanism's one end fixedly connected with second roof-rack, the top one end fixed mounting of second roof-rack has the coating bottle, the top of second roof-rack and the one end fixed mounting who keeps away from the coating bottle have the second water pump, the input of second water pump is connected with the material pumping pipe, the output of second water pump is connected with the conveying pipeline, the bottom fixedly connected with splitter ring of second roof-rack, the inboard equidistance of splitter ring is equipped with the second shower nozzle, carry the top of platform and be located the splitter ring and seted up the collecting vat under, carry the inside fixed mounting of platform to have the collecting pipe, just the top of collecting pipe is linked together with the bottom of collecting vat.

Preferably, the material pumping pipe is of an L-shaped structure, one end, far away from the second water pump, of the material pumping pipe extends to the bottom inside the paint bottle, one end, far away from the second water pump, of the material conveying pipe extends to the bottom of the second top frame and is communicated with the flow dividing ring, and a feeding hole is formed in the top of the paint bottle.

Preferably, the top of the side frame, the top of the lower guide roller, one end of the top of the inclined guide roller and the middle part of the diverter ring are all located in the same horizontal plane.

Preferably, the infrared sensor, the motor, the first water pump and the second water pump are electrically connected with the control panel.

The invention also provides a use method of the conveying device for the trial production of the hot-rolled ribbed steel bar, which comprises the following steps:

firstly, moving equipment to a specified position and electrifying, then starting a motor through a control panel, driving a driving belt pulley to rotate by the motor so as to drive a driven belt pulley to rotate clockwise, driving an upper guide roller to rotate by the driven belt pulley so as to drive a lower guide roller to rotate reversely, inserting reinforcing steel bars between the upper guide roller and the lower guide roller at the moment, and moving the reinforcing steel bars to the direction of a first top frame along with the rotation of the upper guide roller;

step two, when the reinforcing steel bar moves to the bottom of the first top frame, the reinforcing steel bar is kept centered in the moving process through the inclined guide rollers, meanwhile, the infrared sensor detects the reinforcing steel bar, the first water pump is started through the control panel, an external water source is distributed through the first water pump and the connecting pipe in sequence and then is sprayed out of the first spray head through the distribution plate, and the reinforcing steel bar is cooled;

step three, when the cooled steel bars move to the inner side of the shunting ring, a second water pump is started through a control panel, the second water pump pumps out the coating in the coating bottle through a material pumping pipe and conveys the coating into the shunting ring through a material conveying pipe, the coating is sprayed out from a plurality of second spray heads after being shunted by the shunting ring, the steel bars are sprayed in multiple angles, meanwhile, redundant coating falls into a collecting tank and flows out through a collecting pipe in a confluent manner, and the coating can be collected and reused;

and step four, repeating the operation to complete continuous steel bar conveying work.

Compared with the prior art, the invention has the beneficial effects that: the oblique guide roll through crisscross setting is convenient for make the reinforcing bar keep between two parties when removing, be convenient for better carry not unidimensional reinforcing bar through drive mechanism to need not the manpower when the reinforcing bar size changes and adjust equipment, labour saving and time saving, be convenient for better cooling the reinforcing bar through cooling down the mechanism, thereby be convenient for subsequent processing and collection, be convenient for better outside to the reinforcing bar through spraying mechanism and carry out no dead angle coating spraying, improve the production quality of reinforcing bar.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the transmission mechanism of the present invention;

FIG. 3 is a side view of the flexural plate and oblique guide rolls of this invention;

FIG. 4 is an enlarged view of the invention at A;

fig. 5 is a schematic structural view of a diverter ring and a second showerhead of the present invention.

In the figure: 1. a conveying table; 2. a side frame; 3. an outer guide roller; 4. a transmission mechanism; 41. a mounting frame; 42. a first chute; 43. a slider; 44. an upper guide roller; 45. a first spring; 46. a lower guide roller; 47. a second chute; 48. mounting a plate; 49. a second spring; 410. a motor; 411. a drive pulley; 412. a driven pulley; 413. a drive belt; 5. a first top frame; 6. a cooling mechanism; 61. a flow distribution plate; 62. a first nozzle; 63. a connecting pipe; 64. a first water pump; 7. an infrared sensor; 8. bending a plate; 9. an oblique guide roller; 10. a spraying mechanism; 101. a second head frame; 102. coating bottles; 103. a second water pump; 104. a material pumping pipe; 105. a delivery pipe; 106. a shunt ring; 107. a second nozzle; 108. collecting tank; 109. a collector pipe; 11. a control panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a hot rolling ribbed steel bar tries on production and uses conveyor, includes and carries platform 1, carry the equal fixedly connected with side bearer 2 in platform 1 both sides top, two the one end that side bearer 2 kept away from mutually all rotates and is connected with outer guide roll 3, is convenient for better carry out auxiliary stay and direction to the removal of reinforcing bar through outer guide roll 3, prevents reinforcing bar bending deformation, the top one end of carrying platform 1 is equipped with drive mechanism 4, the top middle part fixedly connected with first roof-rack 5 of carrying platform 1, the top of first roof-rack 5 is equipped with cooling mechanism 6, the top of one side that first roof-rack 5 is close to drive mechanism 4 is fixed mounting has infrared sensor 7, is convenient for better detect the position of reinforcing bar through infrared sensor 7, carry the top of platform 1 and lie in the below equidistance crisscross fixed mounting of first roof-rack 5 and have bent plate 8, the inboard top of bent plate 8 rotates and is connected with oblique guide roll 9, the steel bars are kept centered conveniently during moving through the inclined guide rollers 9 which are arranged in a staggered mode, a spraying mechanism 10 is arranged at the top of the conveying table 1 and at one end far away from the transmission mechanism 4, and a control panel 11 is fixedly installed on one side of the conveying table 1;

the transmission mechanism 4 comprises two mounting frames 41, the mounting frames 41 are fixedly connected to edges of two ends of the top of the conveying table 1, a first sliding groove 42 is formed in the top of the mounting frame 41, a sliding block 43 is connected to the inside of the first sliding groove 42 in a sliding manner, an upper guide roller 44 is connected between the two sliding blocks 43 in a rotating manner, a first spring 45 is fixedly connected between the top of the sliding block 43 and the top of the inner wall of the first sliding groove 42, a lower guide roller 46 is connected to the top of the conveying table 1 and is positioned right below the upper guide roller 44 in a rotating manner, a second sliding groove 47 is formed in one side of the conveying table 1, a mounting plate 48 is connected to the inside of the second sliding groove 47 in a sliding manner, and a second spring 49 is fixedly connected to the top of the mounting plate 48 and is positioned inside the second sliding groove 47; drive mechanism 4 still includes motor 410 and driving belt 413, the top fixed mounting of mounting panel 48 has motor 410, motor 410's output shaft fixedly connected with driving pulley 411, one side of slider 43 and last guide roll 44 coaxial coupling have driven pulley 412, driving pulley 411 and driven pulley 412 all are located same horizontal plane, just driving pulley 411 and driven pulley 412 carry out the transmission through driving belt 413 and connect, are convenient for better carry not unidimensional reinforcing bar through drive mechanism 4 to need not the manpower when reinforcing bar size changes and adjust equipment, labour saving and time saving.

It will be appreciated that when the size of the steel bar inserted into the bottom of the 44 is increased, 44 rises, 43 rises and compresses 45, and the pushing force of 43 makes 44 fully contact with the steel bar, keeps enough friction, 43 rises and 412 rises, and is pulled by 413 to rise 411, and then 410 and 48 rise, and 49 pushes 48 down, so that 413 keeps enough tension to drive.

Further, cooling mechanism 6 includes flow distribution plate 61, the top fixed mounting of first roof-rack 5 has flow distribution plate 61, flow distribution plate 61 bottom extends to the bottom and the equidistance of first roof-rack 5 and is equipped with first shower nozzle 62, the top mid-mounting of flow distribution plate 61 has connecting pipe 63, the top of first roof-rack 5 is equipped with first water pump 64, the one end that flow distribution plate 61 was kept away from to connecting pipe 63 is connected with first water pump 64's output, first water pump 64's input is linked together with outside cooling water source, first shower nozzle 62 is linked together through flow distribution plate 61 and connecting pipe 63, is convenient for better cooling the reinforcing bar through cooling mechanism 6 to be convenient for subsequent processing and collection.

Further, the spraying mechanism 10 includes a second top frame 101, one end of the top of the conveying table 1, which is far away from the transmission mechanism 4, is fixedly connected with the second top frame 101, one end of the top of the second top frame 101 is fixedly provided with a paint bottle 102, one end of the top of the second top frame 101, which is far away from the paint bottle 102, is fixedly provided with a second water pump 103, an input end of the second water pump 103 is connected with a material pumping pipe 104, an output end of the second water pump 103 is connected with a material conveying pipe 105, a bottom of the second top frame 101 is fixedly connected with a flow dividing ring 106, inner sides of the flow dividing ring 106 are equidistantly provided with second nozzles 107, a collecting groove 108 is formed at the top of the conveying table 1 and located under the flow dividing ring 106, a collecting pipe 109 is fixedly installed inside the conveying table 1, the top of the collecting pipe 109 is communicated with the bottom of the collecting groove 108, the material pumping pipe 104 is of an L-shaped structure, and the one end that the pump pipe 104 kept away from second water pump 103 extends to the inside bottom of coating bottle 102, the one end that the conveying pipeline 105 kept away from second water pump 103 extends to the bottom of second roof-rack 101 and is linked together with splitter ring 106, the top of coating bottle 102 is equipped with the feed inlet, through the spraying mechanism 10 be convenient for better carry out no dead angle coating spraying to the outside of reinforcing bar, improve the production quality of reinforcing bar.

Furthermore, the top of the side frame 2, the top of the lower guide roller 46, one end of the top of the inclined guide roller 9 and the middle of the diverter ring 106 are all located in the same horizontal plane, so that the steel bars can be guided and processed better.

Further, the infrared sensor 7, the motor 410, the first water pump 64 and the second water pump 103 are electrically connected with the control panel 11, so that the equipment can be controlled better.

The model number of the infrared sensor 7 is E3Z-LS 61-TB.

The invention also provides a use method of the conveying device for the trial production of the hot-rolled ribbed steel bar, which comprises the following steps:

firstly, moving the equipment to a specified position and electrifying, then starting a motor 410 through a control panel 11, driving a driving belt pulley 411 to rotate by the motor 410 so as to drive a driven belt pulley 412 to rotate clockwise, driving an upper guide roller 44 to rotate by the driven belt pulley 412 so as to drive a lower guide roller 46 to rotate reversely, inserting reinforcing steel bars between the upper guide roller 44 and the lower guide roller 46 at the moment, and moving the reinforcing steel bars to the direction of a first top frame 5 along with the rotation of the upper guide roller 44;

step two, when the reinforcing steel bar moves to the bottom of the first top frame 5, the reinforcing steel bar is kept centered in the moving process through the inclined guide rollers 9, meanwhile, the infrared sensor 7 detects the reinforcing steel bar, the first water pump 64 is started through the control panel 11, an external water source is shunted through the first water pump 64 and the connecting pipe 63 in sequence and then is sprayed out of the first spray head 62 through the shunt plate 61, and the reinforcing steel bar is cooled;

step three, when the cooled steel bars move to the inner side of the diverter ring 106, the second water pump 103 is started through the control panel 11, the second water pump 103 pumps out the coating in the coating bottle 102 through the pumping pipe 104, the coating is conveyed into the diverter ring 106 through the conveying pipe 105, the coating is sprayed out from a plurality of second spray heads 107 after being diverted by the diverter ring 106, the steel bars are sprayed in multiple angles, meanwhile, the redundant coating falls into the collecting tank 108 and flows out through the collecting pipe 109 in a converging mode, and the coating can be collected and reused;

and step four, repeating the operation to complete continuous steel bar conveying work.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

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