CN211446363U

CN211446363U - Cloth cutting and positioning device

Info

Publication number: CN211446363U
Application number: CN201922435490.9U
Authority: CN
Inventors: 吉飞越; 黄翼
Original assignee: Guizhou Duocai Creative Tourism Culture Industry Co ltd
Current assignee: Guizhou Duocai Creative Tourism Culture Industry Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-08
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a cloth cuts positioner belongs to cloth processing equipment field. This positioner includes: the operation platform is provided with a first scale mark line; the two cloth pressing parts are fixedly connected to the upper surfaces of the two ends of the operating platform; the supporting seat is connected to the operating platform in a sliding mode and is provided with a second scale mark line; the first driving device is fixedly connected to one side edge of the operating platform, and the output end of the first driving device is in transmission connection with the supporting seat; the fixing block is connected to the supporting seat in a sliding mode and provided with a mounting fixing ring for fixing and positioning the painting brush; and the output end of the second driving device is in transmission connection with the fixed block. Through the positioning device, the cloth can be conveniently positioned in a straight line, the positioning accuracy is improved, and the production efficiency is improved.

Description

Cloth cutting and positioning device

Technical Field

The utility model belongs to cloth processing equipment field, concretely relates to cloth cuts positioner.

Background

In the process of processing the cloth, the cloth needs to be cut to be made into corresponding cloth products. Due to the fact that the cloth products are different in types and sizes, when the cloth is cut, the cloth can be cut only after the cloth needs to be positioned and drawn.

At present, the ruler is mainly manually held to position and draw lines, but during manual operation, because the sizes of cloth pieces are relatively large, when the ruler draws lines through the manual operation, the straight lines cannot be drawn in place at one time, and long straight lines can be drawn on the cloth pieces only by repeatedly positioning one cloth piece, so that errors during manual positioning are large, so that more defective products are produced after cutting, and the production cost of enterprises is increased; when simultaneously fixing a position through the ruler, the ruler needs to be manually repeatedly fixed, the labor intensity of manual operation is high, the positioning line drawing efficiency of the cloth is too low, and the cloth cutting and processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem and provide a cloth cutting positioner can conveniently carry out sharp location to the cloth, avoids carrying out repeated location many times to the cloth, improves the location precision to the finished product qualification rate after tailorring is high, improves production efficiency.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a cloth cuts positioner includes:

the operation platform is horizontally arranged, and a first scale mark line is arranged on the operation platform;

the two cloth pressing parts are fixedly connected to the upper surfaces of the two ends of the operating platform;

the supporting seat is horizontally arranged above the operating platform, the supporting seat is connected to the operating platform in a sliding mode, and second scale identification lines are arranged on the supporting seat;

the first driving device is fixedly connected to one side edge of the operating platform, the output end of the first driving device is in transmission connection with the supporting seat, and the supporting seat is driven to move by the first driving device;

the fixing block is connected to the supporting seat in a sliding mode, and an installation fixing ring for fixing and positioning the painting brush is arranged on the fixing block;

the second driving device is connected to the supporting seat, the output end of the second driving device is in transmission connection with the fixed block, and the fixed block is driven to move through the second driving device.

The utility model has the advantages that: the cloth is tiled on the operation platform, operation can be conveniently carried out, the cloth is compressed by the compression part, the cloth can be prevented from moving in the line drawing process, the line drawing accuracy is improved, the fixed block can be driven to linearly move on the cloth by the arranged first driving device and the second driving device, so that a positioning painting brush can conveniently draw a straight line on the cloth, an operator can conveniently operate the cloth, the labor intensity of the operator is greatly reduced, the operator is prevented from repeatedly positioning and drawing the line, and the positioning accuracy is improved; meanwhile, the moving distance of the fixed block can be conveniently observed through the arranged first scale mark line and the second scale mark line, so that the auxiliary positioning by using a ruler is not needed, and the use is more convenient; meanwhile, the device can be used when multiple groups of repeated line drawing are needed, and the applicability is wider in use.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, a drive arrangement includes first lead screw, first thread bush and first carousel, first lead screw is connected on operation platform's a side, first thread bush threaded connection is in on the first lead screw, the one end of supporting seat with the outer wall fixed connection of first thread bush, other end sliding connection be in operation platform's the other side, first carousel fixed connection be in one of first lead screw is served, first carousel with the coaxial rotation of first lead screw rotates, rotates first carousel passes through first thread bush drives the supporting seat is in operation platform is last to slide.

The beneficial effect of adopting the further scheme is that: drive first lead screw through first carousel and rotate to adjust the lateral shifting of fixed block, it is higher to adjust the precision, does benefit to control displacement, and mechanical transmission stability is higher simultaneously.

Further, be equipped with first fixing base and second fixing base on operation platform's a side, first fixing base with second fixing base parallel arrangement, the other end of first lead screw rotates and passes behind the second fixing base, rotate to connect and be in on the first fixing base, the fixed slide rail that is equipped with of opposite side edge that operation platform is relative, the other end of supporting seat is equipped with the slider, slider sliding connection is in on the slide rail.

The beneficial effect of adopting the further scheme is that: the fixing strength of the first screw rod is improved through the first fixing seat and the second fixing seat, and the movement is avoided.

Further, the second driving device comprises a second lead screw, a second thread sleeve and a second rotary table, the second lead screw is rotatably connected to the supporting seat, the second thread sleeve is in threaded connection to the second lead screw, the fixed block is fixedly connected with the outer wall of the second thread sleeve, one end of the second lead screw is rotatably connected to the supporting seat, the second rotary table is fixedly connected with the second rotary table, the second rotary table is coaxially rotated with the second lead screw, and the second rotary table is rotated to be driven by the second thread sleeve to move the fixed block.

The beneficial effect of adopting the further scheme is that: the second rotary table drives the second screw rod to rotate, so that the longitudinal movement of the fixed block is adjusted, the adjusting precision is higher, the moving distance can be controlled conveniently, and the mechanical transmission stability is higher.

Furthermore, the cloth compresses tightly part and includes door type support, pneumatic telescopic link and clamp plate, the both ends of door type support with the fixed connection of operation platform's upper surface, the clamp plate level sets up in the door type support, the vertical setting of pneumatic telescopic link, pneumatic telescopic link fixed connection be in the top of door type support, pneumatic telescopic link's output passes door type support with the upper surface fixed connection of clamp plate, through pneumatic telescopic link drives the clamp plate reciprocates.

The beneficial effect of adopting the further scheme is that: the pressing plate can be driven to press downwards through the pneumatic telescopic rod, and cloth is fixed.

Further, the cloth pressing part further comprises a cushion, and the cushion is fixedly connected to the lower surface of the pressing plate.

The beneficial effect of adopting the further scheme is that: the soft cushion is contacted with the cloth, so that the cloth is prevented from being damaged.

The device further comprises a calibration ruler, calibration scale marks are arranged on the calibration ruler, and the calibration ruler is connected to the fixed block in a sliding mode.

The beneficial effect of adopting the further scheme is that: the distance between drawn lines can be calibrated through the calibration ruler, and the calibration ruler can be adjusted conveniently and timely.

Furthermore, a sliding channel which is horizontally arranged and is communicated from left to right is arranged on the fixed block, the proofreading ruler is arranged in the sliding channel in a sliding mode, and a locking part used for locking the proofreading ruler is arranged on the fixed block.

The beneficial effect of adopting the further scheme is that: the length of the calibration ruler is convenient to adjust, and the calibration ruler is more convenient to use.

Furthermore, the locking part is a locking bolt, a threaded hole communicated with the sliding channel is formed in the fixing block, a limiting groove is formed in the correcting ruler, the threaded end of the locking bolt penetrates through the threaded hole in a rotating mode and is arranged in the limiting groove, and the correcting ruler is locked by screwing the locking bolt.

The beneficial effect of adopting the further scheme is that: the check ruler can be locked through the locking bolt, and the check ruler is prevented from moving randomly.

The top end of the bottom frame is fixedly connected with the lower surface of the operating platform, and support legs are fixedly arranged at the bottom end of the bottom frame.

The beneficial effect of adopting the further scheme is that: the operation platform is supported by the underframe and the support legs, so that the operation of operators is facilitated.

Drawings

Fig. 1 is a front view of the positioning device of the present invention;

fig. 2 is a top view of the positioning device of the present invention;

fig. 3 is a right side view of the positioning device of the present invention;

fig. 4 is a sectional view of the fixing block of the present invention;

fig. 5 is a diagram showing a first use condition of the positioning device of the present invention;

fig. 6 is a display diagram of the first use case of the positioning device of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an operating platform; 2. a chassis; 3. a support leg; 4. a first fixed seat; 5. a first lead screw; 6. a first threaded sleeve; 7. a second fixed seat; 8. a first turntable; 9. a gantry support; 10. a pneumatic telescopic rod; 11. pressing a plate; 12. a soft cushion; 13. a supporting seat; 14. a fixed block; 15. calibrating a ruler; 16. a second turntable; 17. a slide rail; 18. a limiting groove; 19. a locking bolt; 20. a first scale marking line; 21. a second scale marking line; 22. calibrating the scale marks; 23. a slider; 24. a second lead screw; 25. a second threaded sleeve; 26. a threaded hole; 27. a slide channel; 28. mounting a fixed ring; 29. and (4) distributing.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 to 4, the present embodiment provides a cutting and positioning device for a fabric 29, which includes: the cloth pressing device comprises an operating platform 1, two cloth 29 pressing parts, a supporting seat 13, a first driving device, a fixing block 14 and a second driving device.

The operating platform 1 is horizontally arranged, the operating platform 1 is rectangular, first scale identification lines 20 are arranged on the operating platform 1, and the first scale identification lines 20 are located at the long edge of one side of the operating platform 1. The two cloth 29 pressing parts are fixedly connected to the upper surfaces of the two ends of the operating platform 1, and the cloth 29 to be cut is pressed through the two cloth 29 pressing parts, so that the movement of the cloth 29 is avoided. The supporting seat 13 level sets up operation platform 1's vertical top, supporting seat 13 sliding connection be in operation platform 1 is last, and wherein the both ends of supporting seat 13 stretch out operation platform 1, supporting seat 13 are the rectangle, and supporting seat 13 is perpendicular with 20 spaces of first scale mark line, be equipped with second scale mark line 21 on the supporting seat 13. The first driving device is fixedly connected to one side of the operating platform 1, the output end of the first driving device is in transmission connection with the supporting seat 13, and the supporting seat 13 is driven to move by the first driving device, so that transverse movement is achieved. Fixed block 14 sliding connection be in on the supporting seat 13, be equipped with the solid fixed ring 28 of installation that is used for the fixed position painting brush on the fixed block 14, carry out the setting-out through the location painting brush of installation to cloth 29. The second driving device is connected to the supporting seat 13, an output end of the second driving device is in transmission connection with the fixed block 14, and the second driving device drives the fixed block 14 to move, so that longitudinal movement is achieved. Realize the lateral shifting of location painting brush through first drive arrangement, realize the longitudinal movement of location painting brush through the second drive arrangement to can carry out the parallel repeated location setting-out, observe location painting brush lateral shifting distance through first scale marking line 20 simultaneously, observe location painting brush longitudinal shifting distance through second scale marking line 21. Therefore, the labor intensity of manual positioning line drawing can be reduced, and the efficiency of positioning line drawing is improved.

Preferably, in this embodiment, a driving device includes a first lead screw 5, a first thread bush 6 and a first rotary table 8, the first lead screw 5 is connected on one side of the operation platform 1, the first thread bush 6 is in threaded connection on the first lead screw 5, one end of the supporting seat 13 is fixedly connected with the outer wall of the first thread bush 6, and the other end is in sliding connection on the other side of the operation platform 1, the first rotary table 8 is fixedly connected on one end of the first lead screw 5, the first rotary table 8 is coaxially rotated with the first lead screw 5, and the first rotary table 8 is driven to translate the first thread bush 6 on the first lead screw 5, so that the supporting seat 13 is driven by the first thread bush 6 to slide on the operation platform 1. Wherein the first screw 5 is arranged in parallel with the long edge of the operating platform 1. The matching mode between the first screw rod 5 and the first thread bush 6 is the prior art and is well known to those skilled in the art, and the specific structure and matching mode are not described in too much detail. Of course, the first driving device can also be a single-shaft mechanical arm, and is driven by electricity, so that the use is more convenient.

Preferably, in this embodiment, a first fixing seat 4 and a second fixing seat 7 are disposed on one side of the operating platform 1, the first fixed seat 4 and the second fixed seat 7 are arranged in parallel, the other end of the first screw rod 5 is rotatably connected to the first fixed seat 4 after passing through the second fixed seat 7, wherein the first fixed seat 4 and the second fixed seat 7 are both provided with ball bearings, the first screw 5 is rotationally connected with the first fixed seat 4 and the second fixed seat 7 through the ball bearings, a slide rail 17 is fixedly arranged on the other opposite side edge of the operating platform 1, a slide block 23 is arranged at the other end of the supporting seat 13, the slide block 23 is connected on the slide rail 17 in a sliding manner, the slide rail 17 is a prior art, and may be a drawer-type slide rail 17, which is well known to those skilled in the art, and the detailed structure thereof will not be described in detail.

Preferably, in this embodiment, the second driving device includes a second lead screw 24, a second thread bushing 25 and a second rotary table 16, the second lead screw 24 is rotatably connected to the supporting seat 13, wherein the supporting seat 13 is in a door shape, the second lead screw 24 is located in the supporting seat 13, the second thread bushing 25 is threadedly connected to the second lead screw 24, the fixed block 14 is fixedly connected to an outer wall of the second thread bushing 25, one end of the second lead screw 24 rotates to pass through the supporting seat 13 and fixedly connect to the second rotary table 16, the second rotary table 16 and the second lead screw 24 coaxially rotate, the second rotary table 16 is rotated to drive the second thread bushing 25 to translate on the second lead screw 24, and the fixed block 14 is driven by the second thread bushing 25 to move relative to the supporting seat 13. Wherein the second lead screw 24 is arranged in parallel with the short edge of the operation platform 1. The matching manner between the second lead screw 24 and the second thread bushing 25 is known to those skilled in the art, and the detailed structure and matching manner thereof are not described in too much detail. Of course, preferably, the second driving device may also be a single-shaft mechanical arm, and the single-shaft mechanical arm drives the fixing block 14 to move, and is driven by electricity, so that the use is more convenient.

Preferably, in this embodiment, the cloth 29 pressing part includes a door-shaped support 9, a pneumatic telescopic rod 10 and a pressing plate 11, two ends of the door-shaped support 9 are fixedly connected to the upper surface of the operating platform 1, wherein the door-shaped support 9 is parallel to the supporting seat 13, the pressing plate 11 is horizontally disposed in the door-shaped support 9, the pneumatic telescopic rod 10 is vertically disposed, the pneumatic telescopic rod 10 is fixedly connected to the top end of the door-shaped support 9, the output end of the pneumatic telescopic rod 10 penetrates through the door-shaped support 9 and is fixedly connected to the upper surface of the pressing plate 11, and the pressing plate 11 is driven by the pneumatic telescopic rod 10 to move up and down. When the pneumatic telescopic rod 10 pushes the pressing plate 11 to move downwards, the cloth 29 is pressed. Wherein, a switch for controlling the extension or the contraction of the pneumatic telescopic rod 10 is arranged on the side edge of the operating platform 1. The pneumatic telescopic rod 10 is well known to those skilled in the art, and the detailed structure and principle thereof will not be described in detail. The pneumatic telescopic rods 10 and the pressing plates 11 are four in number, are respectively arranged on the two door-shaped supports 9, and press and fix four corners of the cloth 29 through the pressing plates 11.

Preferably, in this embodiment, the cloth 29 pressing part further includes a cushion 12, the cushion 12 is fixedly connected to the lower surface of the pressing plate 11, and the cushion 12 is in contact with the cloth 29, so as to prevent the cloth 29 from being damaged, wherein the cushion 12 is made of rubber or silicone.

Preferably, in this embodiment, the calibration device further includes a calibration scale 15, the calibration scale 15 is provided with calibration scale marks 22, the calibration scale 15 is slidably connected to the fixed block 14, whether the distance between the two repeated positioning points is correct can be observed through the calibration scale marks 22 on the calibration scale 15, and the measurement accuracy of the calibration scale marks 22 is higher than that of the first scale identification mark 20. Wherein the calibration graduation marks 22 are arranged parallel to the first graduation mark 20.

Preferably, in this embodiment, the fixing block 14 is provided with a horizontally disposed sliding channel 27 penetrating from left to right, the calibration ruler 15 is slidably disposed in the sliding channel 27, and the fixing block 14 is provided with a locking component for locking the calibration ruler 15. Can lock proofreading chi 15 through the locking part, avoid proofreading chi 15 to remove at will to can slide proofreading chi 15 adjustment measurement length, thereby the suitability is wider, also can take off proofreading chi 15 simultaneously and do not use.

Preferably, in this embodiment, the locking member is a locking bolt 19, the fixed block 14 is provided with a threaded hole 26 communicating with the sliding channel 27, the calibration scale 15 is provided with a limiting groove 18, wherein the limiting groove 18 is elongated, a threaded end of the locking bolt 19 is rotatably disposed in the limiting groove 18 through the threaded hole 26, and the lower surface of the calibration scale 15 is in close contact with the inner bottom wall of the sliding channel 27 after the threaded end of the locking bolt 19 is tightly contacted with the bottom of the limiting groove 18 by screwing the locking bolt 19, so as to lock the calibration scale 15. When the correcting ruler 15 needs to be moved, the locking bolt 19 only needs to be loosened, and the use is very convenient.

Preferably, in this embodiment, still include chassis 2, the top of chassis 2 with operation platform 1's lower surface fixed connection, wherein chassis 2 is equipped with four, and four chassis 2 are established respectively in operation platform 1's four corners department, form balanced holding power to operation platform 1 through four chassis 2, chassis 2's bottom is all fixed and is equipped with stabilizer blade 3, improves the holding power through stabilizer blade 3.

When the embodiment is used specifically, as shown in fig. 5, when a straight line needs to be drawn, a cloth 29 passes through the lower part of a supporting seat 13 and is placed on an operation platform 1, a pneumatic telescopic rod 10 is driven to extend to drive a pressing plate 11 to move downwards to press the cloth 29 tightly, a positioning painting brush is placed on a mounting fixing ring 28, a line is positioned from the upper left corner of the cloth 29, the size of the cloth 29 is cut as required, a fixing block 14 is moved to the upper left corner and passes through a first positioning point on a positioning painting brush, a first rotating disc 8 is rotated to drive the fixing block 14 to move transversely, the moving distance is observed according to a first identification scale line, so that the positioning painting brush moves on the cloth 29, a whole transverse straight line is drawn from one end of the cloth 29 to the other end, the fixing block 14 stops moving, a second rotating disc 16 is rotated to drive the fixing block 14 to move longitudinally, the, after reaching suitable size of cutting, stop rotating second carousel 16, rotate first carousel 8 again for fixed block 14 moves from the right side left, makes the location painting brush draw the horizontal straight line of second, repeats the above-mentioned operation, accomplishes horizontal straight line drawing, draws vertical straight line again, thereby accomplishes the setting-out, conveniently tailors, makes things convenient for operating personnel to carry out the setting-out operation.

As shown in fig. 6, in addition, the device can also be used for placing a positioning painting brush when a line needs to be drawn on one cloth 29 at intervals, and the use is more convenient. The distance between the drawn lines can be corrected by the correcting ruler 15, so that the drawn lines can be adjusted in time.

Certainly this positioner also can hand the painting brush location, fixes a position through first scale marking line and second scale marking line, and the service function is abundanter.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a positioner is cut to cloth which characterized in that includes:

the device comprises an operating platform (1), wherein the operating platform (1) is horizontally arranged, and a first scale mark line (20) is arranged on the operating platform (1);

the two cloth pressing parts are fixedly connected to the upper surfaces of the two ends of the operating platform (1);

the supporting seat (13) is horizontally arranged above the operating platform (1), the supporting seat (13) is connected to the operating platform (1) in a sliding mode, and second scale marking lines (21) are arranged on the supporting seat (13);

the first driving device is fixedly connected to one side of the operating platform (1), the output end of the first driving device is in transmission connection with the supporting seat (13), and the supporting seat (13) is driven to move by the first driving device;

the fixing block (14), the fixing block (14) is connected to the supporting seat (13) in a sliding mode, and a mounting fixing ring (28) used for fixing and positioning the painting brush is arranged on the fixing block (14);

the second driving device is connected to the supporting seat (13), the output end of the second driving device is in transmission connection with the fixed block (14), and the fixed block (14) is driven to move through the second driving device.

2. Cloth cutting and positioning device according to claim 1, characterized in that the first driving means comprise a first screw (5), a first threaded sleeve (6) and a first rotating disc (8), the first screw rod (5) is connected to one side of the operating platform (1), the first threaded sleeve (6) is in threaded connection with the first screw rod (5), one end of the supporting seat (13) is fixedly connected with the outer wall of the first threaded sleeve (6), the other end of the supporting seat is in sliding connection with the other side edge of the operating platform (1), the first rotary disc (8) is fixedly connected with one end of the first screw rod (5), the first rotary table (8) and the first screw rod (5) rotate coaxially, and the first rotary table (8) is rotated to drive the supporting seat (13) to slide on the operating platform (1) through the first threaded sleeve (6).

3. The cloth cutting and positioning device according to claim 2, characterized in that a first fixing seat (4) and a second fixing seat (7) are arranged on one side of the operating platform (1), the first fixing seat (4) and the second fixing seat (7) are arranged in parallel, the other end of the first lead screw (5) is rotatably connected to the first fixing seat (4) after passing through the second fixing seat (7) in a rotating manner, a sliding rail (17) is fixedly arranged on the other side opposite to the operating platform (1), a sliding block (23) is arranged at the other end of the supporting seat (13), and the sliding block (23) is slidably connected to the sliding rail (17).

4. The cloth cutting and positioning device according to claim 1, characterized in that the second driving device comprises a second screw rod (24), a second threaded sleeve (25) and a second rotary plate (16), the second screw rod (24) is rotatably connected to the supporting base (13), the second threaded sleeve (25) is rotatably connected to the second screw rod (24), the fixed block (14) is fixedly connected to the outer wall of the second threaded sleeve (25), one end of the second screw rod (24) is rotatably connected to the second rotary plate (16) through the supporting base (13), the second rotary plate (16) and the second screw rod (24) rotate coaxially, and the second rotary plate (16) is rotated to drive the fixed block (14) to move through the second threaded sleeve (25).

5. The cloth cutting and positioning device according to claim 1, characterized in that the cloth pressing part comprises a door-shaped support (9), a pneumatic telescopic rod (10) and a pressing plate (11), two ends of the door-shaped support (9) are fixedly connected with the upper surface of the operating platform (1), the pressing plate (11) is horizontally arranged in the door-shaped support (9), the pneumatic telescopic rod (10) is vertically arranged, the pneumatic telescopic rod (10) is fixedly connected to the top end of the door-shaped support (9), the output end of the pneumatic telescopic rod (10) penetrates through the door-shaped support (9) and is fixedly connected with the upper surface of the pressing plate (11), and the pressing plate (11) is driven to move up and down through the pneumatic telescopic rod (10).

6. The cloth cutting and positioning device according to claim 5, wherein the cloth pressing part further comprises a soft pad (12), and the soft pad (12) is fixedly connected to the lower surface of the pressing plate (11).

7. The cloth cutting and positioning device according to claim 1, further comprising a calibration ruler (15), wherein calibration scale marks (22) are arranged on the calibration ruler (15), and the calibration ruler (15) is slidably connected to the fixed block (14).

8. Cloth cutting and positioning device according to claim 7, characterized in that the fixed block (14) is provided with a horizontally arranged left and right through sliding channel (27), the calibrating ruler (15) is slidably arranged in the sliding channel (27), and the fixed block (14) is provided with a locking component for locking the calibrating ruler (15).

9. The cloth cutting and positioning device according to claim 8, characterized in that the locking component is a locking bolt (19), a threaded hole (26) communicated with the sliding channel (27) is formed in the fixing block (14), a limiting groove (18) is formed in the calibrating ruler (15), a threaded end of the locking bolt (19) is rotatably arranged in the limiting groove (18) through the threaded hole (26), and the calibrating ruler (15) is locked by screwing the locking bolt (19).

10. The cloth cutting and positioning device according to any one of claims 1 to 9, further comprising a bottom frame (2), wherein the top end of the bottom frame (2) is fixedly connected with the lower surface of the operating platform (1), and a support leg (3) is fixedly arranged at the bottom end of the bottom frame (2).