Bone position sensing mechanism of sewing machine

Abstract

The utility model discloses a sewing machine bone position sensing mechanism which comprises a material pressing wheel arranged above a working table top and a bone position sensor arranged below the working table top, the material pressing wheel is installed at the bottom of a material pressing installation strip in a rotating mode, and a material pressing moving seat is installed at the other end of the material pressing installation strip. The material pressing moving seat is slidably mounted on the front side of the material pressing mounting plate, the material pressing mounting plate is vertically mounted at the front end of the material pressing mounting seat, and the material pressing mounting seat is slidably mounted on the rack; a material pressing driving air cylinder is arranged on the rear side of the material pressing mounting plate, and a driving rod of the material pressing driving air cylinder is connected with the material pressing moving seat through a material pressing connecting plate; the bone position sensor corresponds to the material pressing wheel up and down, and the top of the bone position sensor is provided with a contact part protruding upwards. The material pressing wheel corresponds to the position of the bone position sensor below the working table, the bone position sensor jacks up the sewing material upwards, wrinkles and misjudgment at the bone position sensing position are effectively reduced, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine technical field, specifically a sewing machine's bone position induction mechanism. BACKGROUND

[0002] When clothes are processed, the joint formed when the front and back cloth of the clothes are spliced is called "bone position", and the bone position is generally on the left and right sides of the clothes. According to the different types of clothes, the bone position may have one, two or more, and since the bone position is formed by overlapping and sewing two layers of cloth, the thickness of the bone position is greater than that of other parts. Therefore, the position of the clothes can be positioned by detecting the position of the bone position, so that the target position of the clothes can be processed and sewn.

[0003] The existing bone position sensing method is unstable, and when the cloth moves quickly through the feeding device, wrinkles are often generated at the bone position sensing position, causing the bone position sensor to misjudge, especially when different materials are used, the operation also has errors, and rework is required in the later stage. SUMMARY

[0004] The utility model provides a bone position induction mechanism of sewing machine for above -mentioned technical problem, and the bone position of the spliced place of the material is detected by the cooperation of the material pressing wheel and the bone position sensor, and the structure is simple, and the working efficiency of the machine is improved.

[0005] The utility model solves above -mentioned technical problem adopts the technical scheme that a bone position induction mechanism of sewing machine, including setting in the workbench top the material pressing wheel and setting in the workbench bottom the bone position sensor, the material pressing wheel rotation is installed in the bottom of material pressing installation strip, the other end of material pressing installation strip is installed with material pressing mobile seat, material pressing mobile seat sliding installation is in the front side of material pressing installation board, material pressing installation board vertical installation is in the front end of material pressing installation seat, material pressing installation seat sliding installation is in the frame, material pressing installation board rear side is equipped with material pressing drive cylinder, and the drive rod of material pressing drive cylinder is connected with material pressing mobile seat through material pressing connecting plate, bone position sensor and material pressing wheel correspond, and the top of bone position sensor is made to the contact portion that protrudes upwards.

[0006] In order to optimize the above technical scheme, the utility model further includes the following improved technical scheme.

[0007] The adjusting screw is provided above the material pressing seat, the nut is installed at the bottom of the adjusting screw, the adjusting screw is locked in the limiting block through the adjustable screw, and the other end of the limiting block is fixedly connected with the material pressing mobile seat through the material pressing connecting plate.

[0008] The first installation part extending forward is made on the front side of the material pressing mobile seat, the material pressing installation strip inclined downward is installed on the first installation part, and the material pressing wheel is installed at the bottom of the material pressing installation strip through the positioning screw.

[0009] The first guide rail is arranged on the front side of the pressing material mounting plate, and the first sliding block matched with the first guide rail is arranged on the rear side of the pressing material moving seat.

[0010] The cylinder body of the pressing material driving cylinder is arranged on the upper end of the pressing material mounting plate through the pressing material cylinder mounting support.

[0011] Compared with the prior art, the pressing wheel above the workbench top corresponds in position to the bone site inductor below the workbench top, the bone site inductor pushes up the sewing material upward, effectively reduces the wrinkles and misjudgment at the bone site, and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is the schematic diagram of the three-dimensional structure of the embodiment.

[0013] Fig. 2 is the schematic diagram of the three-dimensional structure explosion of the embodiment. DETAILED DESCRIPTION

[0014] The embodiment of the utility model is further described in detail below in combination with the drawings.

[0015] Figs. 1-2 The structure schematic diagram of the utility model is shown.

[0016] The reference signs in the drawings are as follows: the pressing wheel 1, the positioning screw 2, the pressing material mounting strip 3, the pressing material moving seat 4, the first mounting part 4a, the pressing material mounting plate 5, the first guide rail 6, the pressing material driving cylinder 7, the pressing material cylinder mounting support 8, the pressing material connecting plate 9, the pressing material cylinder joint 10, the adjusting screw 11, the nut 12, the adjustable screw 13, the limiting block 14, the bone site inductor 15, the contact part 15a, the pressing material mounting seat 16, the inverted bone mounting block 17, the inverted bone mounting plate 18, the first fixing hole 18a, the first adjusting groove 18b, the first mounting hole 18c, the inverted bone driving cylinder 19, the inverted bone fixing block 20, the inverted bone pressing sheet 21, the elastic connecting sheet 21a, the inverted bone limiting sheet 22, and the workbench top 23.

[0017] The utility model relates to a sewing machine, which comprises a sewing machine head, a bone site inductor and an inverted bone sewing mechanism arranged on the workbench top 23.

[0018] The bone site inductor comprises the pressing wheel 1 arranged above the workbench top 23 and the bone site inductor 15 arranged below the workbench top 23. When the sewing material moves on the workbench top, the pressing wheel 1 and the contact part 15a of the bone site inductor 15 cooperate to perform bone site induction.

[0019] The pressure material wheel 1 is rotatably installed at the bottom of the pressure material installation strip 3 through the positioning screw 2, the pressure material installation strip 3 is arranged obliquely, and the other end of the pressure material installation strip 3 is provided with the pressure material moving seat 4. The front side of the pressure material moving seat 4 is provided with the first installation part 4a extending forward, and the first installation part 4a is fixedly connected with the other end of the pressure material installation strip 3.

[0020] The rear side of the pressure material moving seat 4 is provided with the pressure material installation plate 5, and the pressure material moving seat 4 is slidably installed at the front side of the pressure material installation plate 5. The rear side of the pressure material installation plate 5 is provided with the pressure material installation seat 16, the pressure material installation plate 5 is fixedly installed at the front end of the pressure material installation seat 16, and the rear end of the pressure material installation seat 16 is slidably installed on the rack.

[0021] The front side of the pressure material installation plate 5 is provided with the first guide rail 6, the rear side of the pressure material moving seat 4 is provided with the first sliding block matched with the first guide rail 6, and the pressure material moving seat 4 moves up and down along the first guide rail 6. The rear side of the pressure material installation plate 5 is provided with the pressure material driving cylinder 7, the cylinder body of the pressure material driving cylinder 7 is fixedly installed on the upper end of the pressure material installation plate 5 through the pressure material cylinder installation support 8. The rear side of the pressure material moving seat 4 is provided with the pressure material connecting plate 9, the driving rod of the pressure material driving cylinder 7 is fixedly connected with the pressure material connecting plate 9 through the pressure material cylinder joint 10, and the other end of the pressure material connecting plate 9 is fixedly connected with the rear side of the pressure material moving seat 4.

[0022] The driving rod of the pressure material driving cylinder 7 drives the pressure material connecting plate 9 to move up and down, the pressure material connecting plate 9 drives the pressure material moving seat 4 to move up and down along the first guide rail 6, and the pressure material wheel 1 connected with the pressure material moving seat 4 moves up and down along the first guide rail 6.

[0023] The pressure material installation seat 16 is provided above with the adjusting screw 11 for limiting the lifting height of the pressure material wheel 1, the bottom of the adjusting screw 11 is provided with the nut 12, the adjusting screw 11 is locked in the limiting block 14 through the adjustable screw 13, and the other end of the limiting block 14 is fixedly connected with the pressure material moving seat 4 through the pressure material connecting plate 9. When the pressure material driving cylinder 7 drives the pressure material connecting plate 9 to move downward, the pressure material connecting plate 9 drives the adjusting screw 11 on the limiting block 14 to move downward. When the nut 12 at the bottom of the adjusting screw 11 abuts against the upper surface of the pressure material installation seat 16, the adjusting screw 11 on the limiting block 14 stops moving, and the pressure material wheel 1 connected with the pressure material connecting block stops moving.

[0024] The bone site inductor 15 is arranged below the workbench surface 23, the position of the bone site inductor 15 corresponds to the pressure material wheel 1 up and down, the bone site inductor 15 is provided with the contact part 15a protruding upward, and the contact part 15a passes through the workbench surface 23 upward.

[0025] The pressure wheel 1 is driven by the pressure driving cylinder 7 to move downward, and the pressure wheel 1 is close to the sewing material downward, the contact part 15a of the bone position sensor 15 pushes the sewing material upward, and the sewing material passes through the gap between the pressure wheel and the contact part. When the bone position of the splicing part of the sewing material passes through the bone position sensor 15, the bone position presses the bone position sensor 15 downward, the bone position sensor 15 sends a signal, and the PLC receives the signal, recognizes the bone position, delays for a period of time, and then the bone seam reversing mechanism reverses the bone seam to one side and cooperates with sewing, the pressure driving cylinder 7 drives the pressure wheel 1 to move upward, and the initial position is restored.

[0026] The bone seam reversing mechanism comprises a bone mounting block 17 mounted on the left side of the pressure mounting plate 5, a bone mounting plate 18 arranged on the front side of the bone mounting block 17, a first fixing hole 18a and a first adjusting groove 18b formed in the bone mounting plate 18, the first adjusting groove 18b is arranged in a slanting manner, a first screw is arranged in the first fixing hole 18a, and a second screw is arranged in the first adjusting groove 18b. The bone mounting plate 18 can be installed on the front side of the bone mounting block 17 in a slanting manner through the first screw and the second screw. The inclination degree of the bone mounting plate 18 can be adjusted by adjusting the position of the second screw in the first adjusting groove 18b.

[0027] The front side of the bone mounting block 17 is provided with a bone driving cylinder 19, the bone mounting plate 18 is provided with a first mounting hole 18c, and the cylinder body of the bone driving cylinder 19 is mounted in the first mounting hole 18c. The driving rod of the bone driving cylinder 19 is provided with a bone fixing block 20, and the bone fixing block 20 is connected with a bone pressing piece 21 used for reversing the bone seam. The bone pressing piece 21 is fixedly connected with the bone fixing block 20 through an elastic connecting piece 21a. The bone pressing piece 21 and the elastic connecting piece 21a are integrally formed in an arc surface type, and the width of the bone pressing piece 21 is slightly wider than that of the elastic connecting piece 21a, so that the contact area of the bone pressing piece 21 and the bone seam can be increased.

[0028] The bone fixing block 20 is provided with a bone limiting piece 22, the bottom surface of the elastic connecting piece 21a is matched with the bone limiting piece 22, and the elastic connecting piece 21a is located between the bone fixing block 20 and the bone limiting piece 22. When the elastic connecting piece 21a moves upward, the bone limiting piece 22 can limit the elastic connecting piece 21a from rebounding and deforming.

[0029] When the bone seam of the splicing part of the sewing material moves to the presser foot input port of the sewing machine head, the driving rod of the bone driving cylinder 19 drives the elastic connecting piece 21a to move downward in a slanting manner, and the bone pressing piece 21 at the front end of the elastic connecting piece 21a pushes the bone seam to reverse to one side. The bone seam is pressed into the needle thread of the sewing machine head to be sewn and fixed, and finally the driving rod of the bone driving cylinder 19 is retracted to drive the bone pressing piece 21 to return to the original position.

[0030] The best embodiment of the utility model has been illustrated, various changes or modifications made by those skilled in the art will not deviate from the scope of the utility model.

Claims

1. A stitch bone sensing mechanism of a sewing machine, comprising a presser wheel (1) disposed above a worktable surface (23) and a stitch bone sensor (15) disposed below the worktable surface (23), characterized in that: The pressing wheel (1) is rotatably installed at the bottom of the pressing installation strip (3), the other end of the pressing installation strip (3) is installed with the pressing moving seat (4), the pressing moving seat (4) is slidably installed at the front side of the pressing installation plate (5), the pressing installation plate (5) is vertically installed at the front end of the pressing installation seat (16), the pressing installation seat (16) is slidably installed on the frame; the rear side of the pressing installation plate (5) is provided with the pressing driving cylinder (7), the driving rod of the pressing driving cylinder (7) is connected with the pressing moving seat (4) through the pressing connecting plate (9); the bone site inductor (15) corresponds to the pressing wheel (1) upward and downward, the top of the bone site inductor (15) is provided with the upward protruding contact part (15a).

2. A bone sensing mechanism for a sewing machine according to claim 1, characterized in that: The pressing installation seat (16) is provided with the adjusting screw (11) above, the bottom of the adjusting screw (11) is installed with the nut (12), the adjusting screw (11) is locked in the limiting block (14) through the adjustable screw (13), the other end of the limiting block (14) is fixedly connected with the pressing moving seat (4) through the pressing connecting plate (9).

3. A bone sensing mechanism for a sewing machine according to claim 2, wherein: The front side of the pressing moving seat (4) is provided with the first installation part (4a) extending forward, the pressing installation strip (3) is installed at the first installation part (4a) and is downwardly inclined, the positioning screw (2) is installed at the bottom of the pressing installation strip (3) and the pressing wheel (1).

4. A bone sensing mechanism for a sewing machine according to claim 3, wherein: The front side of the pressing installation plate (5) is installed with the first guide rail (6), the rear side of the pressing moving seat (4) is installed with the first sliding block matched with the first guide rail (6).

5. A bone sensing mechanism for a sewing machine according to claim 4, wherein: The cylinder body of the pressing driving cylinder (7) is installed on the upper end of the pressing installation plate (5) through the pressing cylinder installation support (8).

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