three-axis intelligent sewing machine

文档序号:1574873 发布日期:2020-01-31 浏览:31次 中文

阅读说明:本技术 一种三轴智能缝纫机 (three-axis intelligent sewing machine ) 是由 王冻洋 邵新平 申亚欣 窦倩 于 2019-10-24 设计创作,主要内容包括:本发明公开了一种三轴智能缝纫机,包括智能缝纫机工作台,所述工作台的顶端右侧固定安装有移动机构,所述移动机构包括立板、空心板、螺杆、条形开口、矩形块、支撑板、电机、转杆、连接块、第一矩形箱和液压缸,所述立板的底端与工作台固定安装在一起,且立板位于智能缝纫机工作台顶端的布料模板夹持机构的右前方,所述立板的左侧顶端固定安装有空心板,所述螺杆的左右两侧分别与空心板的内腔左右两侧轴接在一起,所述空心板的底端沿左右方向开设有上下贯通的条形开口。该三轴智能缝纫机,可对切割掉的多余线头进行及时清理收集,防止线头散落在地面或工作台上各个角落,便于工作人员对其进行清理,避免污染工作环境,有利于广泛推广。(The invention discloses a three-axis intelligent sewing machine which comprises an intelligent sewing machine workbench, wherein a moving mechanism is fixedly arranged on the right side of the top end of the workbench, the moving mechanism comprises a vertical plate, a hollow plate, a screw rod, a strip-shaped opening, a rectangular block, a supporting plate, a motor, a rotating rod, a connecting block, a rectangular box and a hydraulic cylinder, the bottom end of the vertical plate and the workbench are fixedly arranged at , the vertical plate is positioned on the right front side of a cloth template clamping mechanism at the top end of the intelligent sewing machine workbench, the hollow plate is fixedly arranged at the top end of the left side of the vertical plate, the left side and the right side of the screw rod are respectively connected with the left side and the right side of an inner cavity of the hollow plate in a shaft manner at , and the bottom end of the hollow plate is provided with the strip-shaped opening which is communicated up and down along the left and right directions.)

The triaxial intelligent sewing machine comprises an intelligent sewing machine workbench (1), and is characterized in that a moving mechanism is fixedly arranged on the right side of the top end of the workbench (1);

the moving mechanism comprises a vertical plate (2), a hollow plate (3), a screw (4), a strip-shaped opening (5), a rectangular block (6), a supporting plate (7), a motor (8), a rotating rod (9), a connecting block (10), an th rectangular box (11) and a hydraulic cylinder (12);

the bottom end of the vertical plate (2) is fixedly installed at with the workbench (1), the vertical plate (2) is located at the right front of a cloth template clamping mechanism at the top end of the workbench (1) of the intelligent sewing machine, a hollow plate (3) is fixedly installed at the top end of the left side of the vertical plate (2), the left side and the right side of the screw rod (4) are respectively in threaded connection with the left side and the right side of an inner cavity of the hollow plate (3) at , a strip-shaped opening (5) which is vertically communicated is formed in the bottom end of the hollow plate (3) along the left and right direction, a rectangular block (6) is in threaded connection with the left side of the outer wall of the screw rod (4), a support plate (7) is fixedly installed at the top end of the right side of the vertical plate (2), a motor (8) is in screwed connection with the top end of the support plate (7), a rotating rod (9) which can rotate around the axis of the motor (8) is locked through a coupler, the left side of the rotating rod (9) extends to the inner cavity of the hollow plate (3) and is fixedly installed at the bottom end of a rectangular box (36 ) with the bottom end of the rectangular box (54), a hydraulic cylinder (3611) is fixedly installed at the bottom end of a connecting block (3611) fixedly installed at a fixed box (3611) extended;

the cleaning mechanism comprises a strip box (13), a fan (14), a connecting column (15), an air outlet pipe (16), an air suction pipe (17), a connecting box (18), a connecting pipe (19) and a filter screen (20);

the filter screen is characterized in that the top end center of the long-strip box (13) is fixedly installed at with a hydraulic cylinder (12), a fan (14) is fixedly installed at the center of the top end of an inner cavity of the long-strip box (13), connecting columns (15) are fixedly installed at the upper end and the lower end of the left side and the right side of the fan (14), the outer side of each connecting column (15) is fixedly installed at with the long-strip box (13), the end of an air outlet pipe (16) is fixedly installed at the air outlet of the fan (14), the other end of the air outlet pipe (16) extends out of the left side wall surface of the long-strip box (13), the opening of the air outlet pipe (16) is upwards arranged, an air suction inlet of the fan (14) is fixedly installed with an air suction pipe (17), a connecting box (18) of an inverted 'concave' shape structure is fixedly installed at the bottom end of the air suction pipe (17), the left side and the right side of the connecting box (18) are fixedly installed at with the long-strip box (13), the front and rear sides of the air suction pipe (17) are fixedly installed with connecting pipes ( end of a connecting box (19), and a filter screen (3) is connected with a connecting box (368613), and a connecting box (3) which is;

an th sliding groove (21) is formed in the bottom end of the left side of the vertical plate (2) in the front-back direction, the front side of the th sliding groove (21) is arranged in an open mode, a th sliding block (22) is inserted into an inner cavity of the th sliding groove (21), a clamping groove (23) is formed in the center of the right side of the th sliding block (22), an th sliding groove (21) is extended from the left side of the th sliding block (22) to fixedly install a rear collecting box (24), and a fixing mechanism is fixedly installed at the bottom end of the right side of the vertical plate (;

the fixing mechanism comprises a second rectangular box (25), a second sliding chute (26), a second sliding block (27), a connecting plate (28), an inserted link (29) and a spring (30);

the left side and riser (2) fixed mounting of second rectangle case (25) have been played at , second spout (26) have been seted up along left right direction at both ends about the inner chamber of second rectangle case (25), the inner chamber of second spout (26) is embedded to have second slider (27), the inboard fixed mounting of second slider (27) has connecting plate (28) that link to each other two second sliders (27), the inner wall interference fit of connecting plate (28) has inserted bar (29), the inner chamber that second rectangle case (25) extended to draw-in groove (23) is run through in the left side of inserted bar (29) is fixed with slider (22) locking, the right side of inserted bar (29) extends second rectangle case (25) fixed mounting has the pull ring, the outer wall of inserted bar (29) has cup jointed spring (30), the left and right sides of spring (30) respectively with connecting plate (28) and second rectangle case (25) fixed mounting has been played at .

2. The kinds of three-axis intelligent sewing machine of claim 1, wherein the longitudinal section of the long strip box (13) is in an inverted "convex" shape, the bottom of the long strip box (13) is open, the length of the long strip box (13) in the front-back direction is slightly greater than that of the cloth template in the front-back direction, and the long strip box (13) is located above the cloth template clamping mechanism at the top end of the intelligent sewing machine workbench (1).

3. The kind of three-axis intelligent sewing machine according to claim 1, wherein the suction duct (17) and the connecting duct (19) have their inner cavities communicated with the inner cavity of the connecting box (18).

4. type intelligent sewing machine according to claim 1, wherein the length of the top end of the long box (13) in the left-right direction is smaller than the length of the inner cavity of the collection box (24) in the left-right direction.

5. The kind of three-axis intelligent sewing machine of claim 1, wherein the sliding slot (21), the sliding block (22), the second sliding slot (26) and the second sliding block (27) are all shaped like a dovetail.

6. The kind of three-axis intelligent sewing machine of claim 1, wherein the distance between the right side of the second slider (27) and the right side of the inner cavity of the second sliding chute (26) and the distance between the right side of the connecting plate (28) and the right side of the inner cavity of the second rectangular box (25) are both greater than the length of the insertion rod (29) extending to the inner cavity of the slot (23).

Technical Field

The invention relates to the technical field of intelligent sewing machines, in particular to three-axis intelligent sewing machines.

Background

With the rising of labor cost and the increasing of difficulties in recruitment in the clothing industry, the clothing industry in China is in urgent need of rotary upgrading, and the intelligent sewing machine comes up and comes down, the intelligent sewing machine controls the machine head to drive the sewing mechanism and the cloth laser cutting machine to lift up and down to be close to or away from cloth through the Z-axis driving mechanism, and drives the template to run along the groove through the X, Y axis, so that sewing is more accurate and rapid, the current intelligent sewing machine generally comprises a workbench, the machine head (comprising the sewing mechanism, a presser foot, the cloth laser cutting machine and the like), an XYZ-axis driving mechanism and a controller, the template is fixed on the XY-axis driving mechanism, the XY-axis driving mechanism moves according to a set track under the control of the controller, sewing work is automatically completed under the coordination of the machine head and a rotating shuttle at the bottom of the workbench while the cloth placed on the template and the template moves, after the sewing work is finished, redundant thread ends and the cutting shapes required by the cloth laser cutting machine are cut through the cloth laser cutting machine, but in the current intelligent three-axis intelligent sewing machine cannot be cleaned in time, so that the redundant thread ends or all the intelligent working platform can be cleaned, and the redundant sewing machine is inconvenient to be polluted, and .

Disclosure of Invention

The invention aims to provide triaxial intelligent sewing machines to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme that triaxial intelligent sewing machines comprise an intelligent sewing machine workbench, wherein a moving mechanism is fixedly arranged on the right side of the top end of the workbench;

the moving mechanism comprises a vertical plate, a hollow plate, a screw rod, a strip-shaped opening, a rectangular block, a supporting plate, a motor, a rotating rod, a connecting block, an th rectangular box and a hydraulic cylinder;

the bottom end of the vertical plate and the workbench are fixedly arranged at , the vertical plate is positioned at the right front of a cloth template clamping mechanism at the top end of the workbench of the intelligent sewing machine, a hollow plate is fixedly arranged at the top end of the left side of the vertical plate, the left side and the right side of the screw rod are respectively coupled with the left side and the right side of an inner cavity of the hollow plate at , a strip-shaped opening which is communicated up and down is formed in the bottom end of the hollow plate along the left-right direction, a rectangular block is screwed on the left side of the outer wall of the screw rod, a support plate is fixedly arranged at the top end of the right side of the vertical plate, a motor is connected with the top end of the support plate through a screw, the output end of the motor is locked with a rotating rod which can rotate around the axis of the motor through a coupler, the left side of the rotating rod penetrates through the vertical plate and extends to the inner cavity of the hollow plate to be fixedly arranged at with the screw rod, a connecting block is fixedly arranged at;

the cleaning mechanism comprises a strip box, a fan, a connecting column, an air outlet pipe, an air suction pipe, a connecting box, a connecting pipe and a filter screen;

the air outlet of the fan is fixedly provided with a end of an air outlet pipe, the other end of the air outlet pipe extends out of the left side wall surface of the long box, an opening of the air outlet pipe is arranged upwards, an air suction pipe is fixedly installed at an air suction opening of the fan, a connecting box of an inverted 'concave' shape structure is fixedly installed at the bottom end of the air suction pipe, the left side and the right side of the connecting box are fixedly installed at , the end of a connecting pipe of an 'L' shape structure is fixedly installed at the front side and the rear side of the air suction pipe, the other end of the connecting pipe and the front side and the rear side of the top end of the connecting box are fixedly installed at , filter screens are inserted into grooves in the left side and the right side of the inner cavity of the long box, and the filter screens are hinged to form plates in the front side of the long box and the corresponding positions;

an th sliding groove is formed in the bottom end of the left side of the vertical plate in the front-back direction, the front side of the th sliding groove is arranged in an open mode, a th sliding block is inserted into an inner cavity of the th sliding groove, a clamping groove is formed in the center of the right side of the th sliding block, a th sliding groove is extended out of the left side of the th sliding block to fixedly mount a rear collecting box, and a fixing mechanism is fixedly mounted at the bottom end of the right side of the;

the fixing mechanism comprises a second rectangular box, a second sliding chute, a second sliding block, a connecting plate, an inserted bar and a spring;

the left side and the riser fixed mounting of second rectangle case have been played at , the second spout has been seted up along left right direction at both ends about the inner chamber of second rectangle case, the inner chamber of second spout is embedded to have the second slider, the inboard fixed mounting of second slider has the connecting plate that links to each other two second sliders, the inner wall interference fit of connecting plate has the inserted bar, the left side of inserted bar runs through the inner chamber that second rectangle case extends to the draw-in groove and fixes slider locking, the right side of inserted bar extends second rectangle case fixed mounting has the pull ring, the outer wall of inserted bar has cup jointed the spring, the left and right sides of spring plays with connecting plate and second rectangle case fixed mounting respectively at .

Preferably, the longitudinal section of rectangular case is "protruding" font structure of falling, and the bottom of rectangular case is opened, the length of rectangular case along the fore-and-aft direction slightly is greater than the length of cloth template along the fore-and-aft direction, rectangular case is located the cloth template fixture's on intelligent sewing machine workstation top. Preferably, the inner cavities of the air suction pipe and the connecting pipe are communicated with the inner cavity of the connecting box.

Preferably, the length of the top end of the long-strip box along the left-right direction is smaller than the length of the inner cavity of the collecting box along the left-right direction.

Preferably, the th sliding groove, the th sliding block, the second sliding groove and the second sliding block are all in a dovetail shape.

Preferably, the distance between the right side of the second sliding block and the right side of the inner cavity of the second sliding chute and the distance between the right side of the connecting plate and the right side of the inner cavity of the second rectangular box are both greater than the length of the inserted bar extending to the inner cavity of the clamping groove.

Compared with the prior art, the three-axis intelligent sewing machine has the advantages that the excess thread ends cut off on the upper surface of the cloth moving back to the initial position can be gradually adsorbed and cleaned from left to right through the matching of the cleaning mechanism and the moving mechanism, when the cleaning mechanism moves to correspond to the collecting box, the adsorbed thread ends can lose the suction force and fall into the collecting box to be collected through closing the cleaning mechanism, the collecting box and the sliding block can be conveniently detached or fixed from the sliding groove through the matching of the inserting rod and the clamping groove through the fixing mechanism, the thread ends in the inner cavity of the collecting box can be conveniently processed, the cut excess thread ends can be timely cleaned and collected, the thread ends are prevented from scattering on the ground or at each corner of a working table, workers can conveniently clean the thread ends, the working environment is prevented from being polluted, and the universal pushing is facilitated.

Drawings

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

FIG. 2 is a schematic sectional front view of the hollow plate according to the present invention;

FIG. 3 is an enlarged schematic view of the present invention at A;

fig. 4 is an enlarged schematic view of the present invention at B.

In the drawing, 1, an intelligent sewing machine workbench, 2, a vertical plate, 3, a hollow plate, 4, a screw, 5, a strip-shaped opening, 6, a rectangular block, 7, a supporting plate, 8, a motor, 9, a rotating rod, 10, a connecting block, 11, an rectangular box, 12, a hydraulic cylinder, 13, a strip box, 14, a fan, 15, a connecting column, 16, an air outlet pipe, 17, an air suction pipe, 18, a connecting box, 19, a connecting pipe, 20, a filter screen, 21, a sliding groove, 22, a sliding block, 23, a clamping groove, 24, a collecting box, 25, a second rectangular box, 26, a second sliding groove, 27, a second sliding block, 28, a connecting plate, 29, an inserting rod, 30 and a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.

Referring to fig. 1-4, the invention provides technical solutions, namely, three-axis intelligent sewing machines, which comprise an intelligent sewing machine workbench 1, wherein a moving mechanism is fixedly arranged on the right side of the top end of the workbench 1;

the moving mechanism comprises a vertical plate 2, a hollow plate 3, a screw 4, a strip-shaped opening 5, a rectangular block 6, a supporting plate 7, a motor 8, a rotating rod 9, a connecting block 10,

th rectangular box 11 and hydraulic cylinder 12;

the bottom end of the vertical plate 2 is fixedly installed at with the workbench 1, the vertical plate 2 is located at the right front of a cloth template clamping mechanism at the top end of the workbench 1 of the intelligent sewing machine, the left top end of the vertical plate 2 is fixedly installed with a hollow plate 3, the left side and the right side of a screw rod 4 are respectively coupled with the left side and the right side of an inner cavity of the hollow plate 3 at , a strip-shaped opening 5 which is communicated up and down is formed in the bottom end of the hollow plate 3 along the left and right directions, a rectangular block 6 is screwed on the left side of the outer wall of the screw rod 4 and is matched with the rectangular block 6 through the screw rod 4, the rectangular block 6 is driven to move leftwards or rightwards when the screw rod 4 rotates, a support plate 7 is fixedly installed at the right top end of the vertical plate 2, a motor 8 is connected with a top screw bolt at the top end of the support plate 7, a speed reducing motor 8 of which is R107R77 is controlled by an external operation system, a rotating rod 9 which can rotate around the axis is locked by a coupler at the output end of the motor 8, a rotating rod 9 which is locked by a coupler through the rectangular block 10, a hydraulic cylinder which is inserted into the inner cavity of the vertical plate 3, a hydraulic cylinder 2 which is fixedly installed at the bottom end of the hollow plate 3, a hydraulic cylinder which is fixedly installed at the bottom end of a hydraulic cylinder 2, a hydraulic cylinder which is fixedly installed at the bottom end of a hydraulic cylinder which is connected with;

the cleaning mechanism comprises a strip box 13, a fan 14, a connecting column 15, an air outlet pipe 16, an air suction pipe 17, a connecting box 18, a connecting pipe 19 and a filter screen 20, wherein the central position of the top end of the strip box 13 is fixedly arranged at with a hydraulic cylinder 12, the central position of the top end of an inner cavity of the strip box 13 is fixedly provided with the fan 14, the fan 14 is a small-sized exhaust fan with the model of TS-200 and is controlled by an external operating system, the connecting column 15 is fixedly arranged at the upper end and the lower end of the left side and the right side of the fan 14, the outer side of the connecting column 15 and the strip box 13 are fixedly arranged at , the fan 14 can be more stably fixed in the inner cavity of the strip box 13 through the connecting column 15, the end of the air outlet pipe 16 is fixedly arranged at an air outlet of the fan 14, the other end of the air outlet pipe 16 extends out of the left side wall of the strip box 13, the opening of the air outlet pipe 16 is upwards arranged, the air suction pipe 17 is fixedly provided with the air suction pipe 17, the bottom end of the air suction pipe 17 is fixedly provided with the connecting box 18 with an inverted concave structure, the left side and right side of the connecting box 18 is fixedly arranged with the strip box 13, the filter screen 3, the connecting box 18 is fixedly arranged at the front and back side of the filter screen 3, the filter screen 3 is arranged at the front;

an th sliding groove 21 is formed in the bottom end of the left side of the vertical plate 2 in the front-back direction, the front side of the th sliding groove 21 is open, a th sliding block 22 is inserted into an inner cavity of the th sliding groove 21, a clamping groove 23 is formed in the center of the right side of the th sliding block 22, the th sliding groove 21 extends out of the left side of the th sliding block 22 to fixedly mount the rear collecting box 24, the collecting box 24 can be conveniently fixed on the left side wall of the vertical plate 2 through the matching of the th sliding groove 21 and the th sliding block 22, and a fixing mechanism is fixedly mounted at;

the fixing mechanism comprises a second rectangular box 25, a second sliding chute 26, a second sliding block 27, a connecting plate 28, an inserted link 29 and a spring 30;

the left side of second rectangle case 25 has been played with riser 2 fixed mounting at , second spout 26 has been seted up along left right direction at both ends about the inner chamber of second rectangle case 25, second slider 27 has been inlayed to the inner chamber of second spout 26, the inboard fixed mounting of second slider 27 has the connecting plate 28 that links to each other two second sliders 27, can make connecting plate 28 more stable remove through second spout 26 and second slider 27, the inner wall interference fit of connecting plate 28 has inserted bar 29, the left side of inserted bar 29 runs through the inner chamber that second rectangle case 25 extends to draw-in groove 23 with slider 22 locking fixed, the right side of inserted bar 29 extends second rectangle case 25 fixed mounting has the pull ring, can conveniently stimulate inserted bar 29 through the pull ring and remove, spring 30 has been cup jointed to the outer wall of inserted bar 29, the elasticity coefficient of spring 30 is 18N/CM's compression spring, spring 30 produces elastic deformation after receiving the extension or the extrusion, restore to initial condition after removing the external force, can be convenient for drive inserted bar 29 through connecting plate 28 and carry out fixed mounting in the inner chamber of draw-in 23 through spring 30, the left and right sides and second rectangle case 30 and second fixed mounting are convenient for the connecting plate through spring 30 extrusion.

As the preferred scheme, further steps, the longitudinal section of the long box 13 is in an inverted 'convex' shape, the bottom of the long box 13 is open, the length of the long box 13 in the front-back direction is slightly larger than that of the cloth template in the front-back direction, the long box 13 is located above the cloth template clamping mechanism at the top end of the intelligent sewing machine workbench 1, and the extra thread ends cut off on the upper surface of the cloth can be completely adsorbed.

Preferably, , the inner cavities of the suction pipe 17 and the connecting pipe 19 are communicated with the inner cavity of the connecting box 18 to ensure the suction of the cut excessive thread ends.

Preferably, further , the length of the top end of the long box 13 in the left-right direction is smaller than the length of the inner cavity of the collection box 24 in the left-right direction, so that the excess thread ends sucked by the suction box can be dropped into the inner cavity of the collection box 24.

Preferably, in step , the sliding groove 21, the sliding block 22, the second sliding groove 26 and the second sliding block 27 are all shaped like a dovetail, so that the sliding block 22 and the second sliding block 27 are respectively fixed in the inner cavities of the sliding groove 21 and the second sliding groove 26 more stably, and the sliding block 22 and the second sliding block 27 are prevented from being separated from the inner cavities of the sliding groove 21 and the second sliding groove 26 respectively.

Preferably, the distance between the right side of the second sliding block 27 and the right side of the inner cavity of the second sliding chute 26 and the distance between the right side of the connecting plate 28 and the right side of the inner cavity of the second rectangular box 25 are both greater than the length of the insertion rod 29 extending to the inner cavity of the clamping groove 23, so that the insertion rod 29 can be separated from the clamping groove 23 after moving rightwards by steps.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

When a cloth laser cutting machine finishes cutting the redundant thread ends and the required cutting shapes of cloth, and moves the cloth to the initial position on the right side of the top end of an intelligent sewing machine workbench 1, an external power supply of a hydraulic pump and a fan 14 is connected, the hydraulic pump and the fan 14 start to work, a hydraulic cylinder 12 drives a cleaning mechanism to move downwards, the bottom end of a long box 13 is moved to the upper surface of the cloth returning to the initial position, the fan 14 sucks air through an air suction pipe 17, a connecting pipe 19 and a connecting box 18, the redundant thread ends cut off on the upper surface of the cloth are adsorbed to a filter screen 20, the external power supply of a motor 8 is connected at the moment, the motor 8 starts to work to rotate forwards, the motor 8 drives a rotating rod 9 and a screw rod 4 to rotate slowly clockwise, under the threaded matching of the screw rod 4 and the rectangular block 6, the rotating rod 4 can drive a torque 6 to move slowly to the right side, the rectangular block 6 drives a rectangular box 11, a hydraulic cylinder 12 and a cleaning mechanism to move slowly to the right side through the connecting block 6314, the redundant thread ends cut off the top end of the cloth, the redundant thread ends of the cloth are taken from the left side, the connecting rod 24, the sliding box can be pulled to clean the sliding box 24, the sliding box can be conveniently, the working chute 14, the sliding box can be detached from the sliding box, the sliding box can be detached from the sliding box, the sliding box 24, the sliding box can be removed, the sliding box can be removed, the sliding box 24, the sliding box can be removed, the sliding box can be removed, the sliding box.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", " end", "top", "middle", " end", "upper", " side", "top", "inner", "front", "center", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, but do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operate in a particular orientation, and unless otherwise specifically stated or limited, the terms "snap", "pivot", "snap", "fixed", and "fixed" are to be construed as , for example, as a fixed connection, a detachable connection, or a body, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, a communication between two components, or an interaction relationship between two components, unless otherwise specifically limited by those of ordinary skill in the art.

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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