Automatic wire breaking structure of flat car machine

Abstract

The utility model relates to the technical field of flatcar machines, and discloses an automatic wire breaking structure of a flatcar machine, which comprises a working table, a machine head is arranged at the top end of the working table, a connecting frame is arranged on the left side of the bottom end of the machine head, and a wire cutting assembly convenient for wire breaking is arranged on the left side in the connecting frame. According to the automatic wire breaking structure of the flatcar machine, the connecting plate, the lead screw, the threaded sleeve, the limiting sliding block and the servo motor are arranged, the servo motor is started and drives the lead screw to rotate, the lead screw rotates so that the threaded sleeve can drive the blades to move oppositely through the connecting plate, and therefore wire breaking of the blades is facilitated; when the blade moves, the limiting sliding groove can limit the threaded sleeve through the limiting sliding block, so that the stability of the blade in the moving process can be improved, a certain distance is formed between the blade and the needle body when the blade does not move, the needle body cannot be affected, and the problems that the stability of product thread breaking is poor, and the product machining efficiency is likely to be affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat lathe machines, in particular to an automatic wire breaking structure of a flat lathe machine. Background Art

[0002] A flatbed sewing machine is usually called a single-needle lockstitch machine. It can form a seam on the sewing material, or interweave or sew one or more layers of sewing material. A flatbed sewing machine can sew a variety of fabric products. The seams sewn by a flatbed sewing machine are neat, beautiful, uniform, flat and firm. The flatbed sewing machine is the most basic type of sewing equipment. When using a flatbed sewing machine, the sewn product needs to be cut off.

[0003] There are still some problems with the automatic thread-breaking structure of common flat lathes. For example, the workers usually break the thread of the product manually. When the thread breaks, the fabric needs to be pulled out from under the needle, which can easily cause waste. The stability of the product thread breaking is poor, which can easily affect the product processing efficiency.

[0004] Therefore, we proposed an automatic wire breaking structure for a flat car machine to improve the above problems. Utility Model Content

[0005] The utility model aims to provide an automatic wire breaking structure for a flat lathe machine to solve the problem in the above background technology that the stability of product wire breaking is poor and the product processing efficiency is easily affected.

[0006] To achieve the above object, the utility model provides the following technical solutions: an automatic wire breaking structure of a flat lathe, comprising a workbench, a machine head is arranged at the top of the workbench, a connecting frame is arranged on the left side of the bottom end of the machine head, and a wire cutting assembly for wire breaking is arranged on the left side inside the connecting frame;

[0007] The wire cutting assembly includes a screw rod, a blade and a servo motor, reserved grooves are provided at both ends of the connecting frame, a servo motor is installed at the front end of the connecting frame, the output end of the servo motor is fixedly connected to the screw rod, threaded sleeves are provided at both ends of the outside of the screw rod, a connecting plate is fixedly connected to the left side of the threaded sleeve, a blade is provided at the bottom end of the connecting plate, a limiting slider is fixedly connected to the top end of the threaded sleeve, a limiting slide groove is provided at the top end of the connecting frame, and a limiting groove is provided on the left side of the bottom end of the connecting frame.

[0008] Preferably, a control panel is provided on the right side of the front end of the machine head, and a needle body is installed on the left side of the bottom end inside the machine head.

[0009] Preferably, the limiting sliding block slides inside the limiting sliding groove, and the connecting plate slides inside the limiting groove.

[0010] Preferably, the connecting plate and the reserved groove are respectively arranged inside the screw rod, and the threaded sleeve and the screw rod cooperate with each other.

[0011] Preferably, a cylinder is installed between the connecting frame and the machine head, a limiting sleeve is arranged on the left side of the cylinder, the top end of the connecting frame is fixedly connected to a limiting sleeve rod, the top end of the limiting sleeve rod is fixedly connected to a fixing plate, the top end of the fixing plate is fixedly connected to a spring, and limiting slide rails are provided on both sides of the inside of the limiting sleeve.

[0012] Preferably, both sides of the fixing plate slide up and down inside the limiting slide rail, and the limiting sleeve is movably sleeved on the outside of the limiting sleeve rod.

[0013] Preferably, a mounting groove is provided at the bottom end of the connecting plate, a mounting block is fixedly connected to the outer end of the blade, fixing grooves are respectively provided on the outer side wall of the mounting block and the bottom end of the connecting plate, and mounting bolts are provided inside the fixing grooves.

[0014] Preferably, the mounting block is embedded in the mounting groove, and the mounting block is mounted in the mounting groove through a fixing groove and mounting bolts.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the automatic wire breaking structure of the flat lathe not only realizes stable and rapid wire breaking, but also facilitates the lifting and lowering of the connecting frame and facilitates the replacement of the blade;

[0016] (1) A connecting plate, a screw rod, a limiting slide groove, a threaded sleeve, a limiting slider and a servo motor are provided. The servo motor is started, and the servo motor drives the screw rod to rotate. Since the threads at the two ends of the screw rod are opposite, the rotation of the screw rod can make the threaded sleeve drive the blade to move in opposite directions through the connecting plate, thereby facilitating the blade to break. When the blade moves, the limiting slide groove limits the threaded sleeve through the limiting slider, thereby improving the stability of the blade when it moves. When the blade does not move, it has a certain distance from the needle body and will not affect the needle body.

[0017] (2) By setting a limit sleeve, a cylinder, a limit sleeve rod, a spring and a fixing plate, the cylinder is started, and the cylinder drives the connecting frame to rise and fall, so that the blade is conveniently in contact with the processed fabric. The lifting of the connecting frame can prevent the connecting frame from affecting the operation of the machine head. When the connecting frame is lifted or lowered, the limit sleeve rod will slide up and down inside the limit sleeve, so as to improve the lifting stability of the needle body. The spring can prevent the connecting frame from falling suddenly and causing accidental injury to the staff;

[0018] (3) By providing the fixing groove, the mounting block, the mounting groove and the mounting bolt, the blade is easily worn out after long-term use. When the blade needs to be replaced, the mounting bolt is turned to screw the mounting bolt out from the inside of the fixing groove so that the mounting block loses its fixation. When the mounting block loses its fixation, the mounting block can be taken out from the inside of the mounting groove, thereby facilitating the replacement of the worn blade. After replacement, the mounting bolt is screwed into the inside of the fixing groove again to fix the mounting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of an enlarged side cross-sectional structure of the connecting frame of the utility model;

[0021] Figure 3 It is a schematic diagram of an enlarged front cross-sectional structure of a limiting sleeve of the utility model;

[0022] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. workbench; 2. connecting frame; 3. needle body; 4. connecting plate; 5. machine head; 6. limiting sleeve; 7. cylinder; 8. control panel; 9. reserved groove; 10. screw rod; 11. limiting slide groove; 12. threaded sleeve; 13. limiting groove; 14. blade; 15. limiting slider; 16. servo motor; 17. limiting sleeve rod; 18. spring; 19. limiting slide rail; 20. fixing plate; 21. fixing groove; 22. mounting block; 23. mounting groove; 24. mounting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 An automatic wire breaking structure of a flat lathe comprises a workbench 1, a machine head 5 is arranged on the top of the workbench 1, a connecting frame 2 is arranged on the left side of the bottom end of the machine head 5, and a wire cutting assembly for wire breaking is arranged on the left side inside the connecting frame 2;

[0026] The wire cutting assembly includes a screw rod 10, a blade 14 and a servo motor 16. Reserved grooves 9 are provided at both ends of the connecting frame 2. A servo motor 16 is installed at the front end of the connecting frame 2. The output end of the servo motor 16 is fixedly connected to the screw rod 10. Threaded sleeves 12 are provided at both ends of the outside of the screw rod 10. The left side of the threaded sleeve 12 is fixedly connected to the connecting plate 4. The bottom end of the connecting plate 4 is provided with a blade 14. The top of the threaded sleeve 12 is fixedly connected to a limited slider 15. A limited slide groove 11 is provided at the top of the connecting frame 2. A limited groove 13 is provided on the left side of the bottom end of the connecting frame 2.

[0027] A control panel 8 is provided on the right side of the front end of the machine head 5, a needle body 3 is installed on the left side of the bottom end of the machine head 5, a limit slider 15 slides inside the limit slide groove 11, a connecting plate 4 slides inside the limit groove 13, the connecting plate 4 and the reserved groove 9 are respectively arranged inside the screw rod 10, and the threaded sleeve 12 and the screw rod 10 cooperate with each other;

[0028] Specifically, Figure 1 and Figure 2 As shown, the servo motor 16 is started, and the servo motor 16 drives the screw rod 10 to rotate. Since the threads at the two ends of the outside of the screw rod 10 are opposite, the rotation of the screw rod 10 can make the threaded sleeve 12 drive the blade 14 to move in opposite directions through the connecting plate 4, thereby facilitating the cutting of the blade 14. When the blade 14 moves, the limiting slide groove 11 will limit the threaded sleeve 12 through the limiting slider 15, thereby improving the stability of the blade 14 when moving. When the blade 14 does not move, it has a certain distance from the needle body 3 and will not affect the needle body 3.

[0029] Embodiment 2: A cylinder 7 is installed between the connecting frame 2 and the machine head 5, a limiting sleeve 6 is arranged on the left side of the cylinder 7, the top of the connecting frame 2 is fixedly connected to a limiting sleeve rod 17, the top of the limiting sleeve rod 17 is fixedly connected to a fixing plate 20, the top of the fixing plate 20 is fixedly connected to a spring 18, limiting slide rails 19 are arranged on both sides of the inside of the limiting sleeve 6, both sides of the fixing plate 20 slide up and down inside the limiting slide rails 19, and the limiting sleeve 6 is movably sleeved on the outside of the limiting sleeve rod 17;

[0030] Specifically, Figure 1 and Figure 3 As shown, start the cylinder 7, which drives the connecting frame 2 to rise and fall, thereby facilitating the contact between the blade 14 and the processed fabric. The rising and falling of the connecting frame 2 can prevent the connecting frame 2 from affecting the operation of the machine head 5. When the connecting frame 2 is rising and falling, the limiting sleeve rod 17 will slide up and down inside the limiting sleeve 6, thereby improving the stability of the needle body 3 rising and falling. The spring 18 can prevent the connecting frame 2 from falling suddenly and causing accidental injuries to the staff.

[0031] Embodiment 3: A mounting groove 23 is provided at the bottom end of the connecting plate 4, and a mounting block 22 is fixedly connected to the outer end of the blade 14, and a fixing groove 21 is provided on the mounting block 22 and the outer wall of the bottom end of the connecting plate 4 respectively, and a mounting bolt 24 is provided inside the fixing groove 21, and the mounting block 22 is embedded in the mounting groove 23, and the mounting block 22 is installed in the mounting groove 23 through the fixing groove 21 and the mounting bolt 24;

[0032] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the blade 14 is easily worn after long-term use. When the blade 14 needs to be replaced, the mounting bolt 24 is rotated to screw the mounting bolt 24 out from the inside of the fixing groove 21 so that the mounting block 22 loses its fixation. If the mounting block 22 loses its fixation, the mounting block 22 can be taken out from the inside of the mounting groove 23, thereby facilitating the replacement of the worn blade 14. After replacement, the mounting bolt 24 is screwed into the inside of the fixing groove 21 again to fix the mounting block 22.

[0033] Working principle: After the processing is completed, the utility model makes the needle body 3 rise, and then starts the cylinder 7, and the cylinder 7 drives the connecting frame 2 to rise and fall, so as to facilitate the contact between the blade 14 and the processed cloth. When the blade 14 drops to a suitable position, the servo motor 16 is started, and the servo motor 16 drives the screw rod 10 to rotate. The rotation of the screw rod 10 can make the thread sleeve 12 drive the blade 14 to move in opposite directions through the connecting plate 4, so as to facilitate the cutting of the blade 14. When the blade 14 moves, the limiting slide groove 11 will limit the thread sleeve 12 through the limiting slider 15, so as to improve the stability of the blade 14 when it moves. When the blade 14 does not move, it has a certain distance from the needle body 3, and will not affect the needle body 3, and the cutting will not be caused. Then start the cylinder 7 again, and the cylinder 7 drives the connecting frame 2 to rise. The lifting of the connecting frame 2 can prevent the connecting frame 2 from affecting the operation of the machine head 5. When the connecting frame 2 is lifted or lowered, the limit sleeve rod 17 will slide up and down inside the limit sleeve 6, thereby improving the lifting stability of the needle body 3. The spring 18 can prevent the connecting frame 2 from suddenly falling and causing accidental injury to the staff. The blade 14 is easily worn after long-term use. When the blade 14 needs to be replaced, the mounting bolt 24 is rotated and the mounting bolt 24 is screwed out from the inside of the fixing groove 21 to make the mounting block 22 lose its fixation. If the mounting block 22 loses its fixation, the mounting block 22 can be taken out from the inside of the mounting groove 23, thereby facilitating the replacement of the worn blade 14.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An automatic wire breaking structure for a flat lathe, comprising a workbench (1), characterized in that: A machine head (5) is arranged at the top of the workbench (1), a connecting frame (2) is arranged on the left side of the bottom end of the machine head (5), and a wire cutting assembly for facilitating wire cutting is arranged on the left side inside the connecting frame (2); The wire cutting assembly comprises a screw rod (10), a blade (14) and a servo motor (16); two ends of the connection frame (2) are provided with reserved grooves (9); a servo motor (16) is installed at the front end of the connection frame (2); the output end of the servo motor (16) is fixedly connected to the screw rod (10); two ends of the screw rod (10) are provided with threaded sleeves (12); the left side of the threaded sleeve (12) is fixedly connected to a connecting plate (4); the bottom end of the connecting plate (4) is provided with a blade (14); the top end of the threaded sleeve (12) is fixedly connected to a limiting slider (15); the top end of the connection frame (2) is provided with a limiting slide groove (11); and the left side of the bottom end of the connection frame (2) is provided with a limiting groove (13).

2. The automatic wire breaking structure of a flat lathe according to claim 1 is characterized in that: A control panel (8) is provided on the right side of the front end of the machine head (5), and a needle body (3) is installed on the left side of the bottom end inside the machine head (5).

3. The automatic wire breaking structure of a flat lathe according to claim 1 is characterized in that: The limiting sliding block (15) slides inside the limiting sliding groove (11), and the connecting plate (4) slides inside the limiting groove (13).

4. The automatic wire breaking structure of a flat lathe according to claim 1 is characterized in that: The connecting plate (4) and the reserved groove (9) are respectively arranged inside the screw rod (10), and the threaded sleeve (12) and the screw rod (10) cooperate with each other.

5. The automatic wire breaking structure of a flat lathe according to claim 1 is characterized in that: A cylinder (7) is installed between the connecting frame (2) and the machine head (5), a limiting sleeve (6) is arranged on the left side of the cylinder (7), the top end of the connecting frame (2) is fixedly connected to a limiting sleeve rod (17), the top end of the limiting sleeve rod (17) is fixedly connected to a fixing plate (20), the top end of the fixing plate (20) is fixedly connected to a spring (18), and limiting slide rails (19) are arranged on both sides of the inside of the limiting sleeve (6).

6. The automatic wire breaking structure of a flat lathe according to claim 5 is characterized in that: Both sides of the fixing plate (20) slide up and down inside the limiting slide rail (19), and the limiting sleeve (6) is movably sleeved on the outside of the limiting sleeve rod (17).

7. The automatic wire breaking structure of a flat lathe according to claim 1 is characterized in that: The bottom end of the connecting plate (4) is provided with a mounting groove (23), the outer end of the blade (14) is fixedly connected to a mounting block (22), the mounting block (22) and the outer side wall of the bottom end of the connecting plate (4) are respectively provided with fixing grooves (21), and the fixing grooves (21) are provided with mounting bolts (24) inside.

8. The automatic wire breaking structure of a flat lathe according to claim 7 is characterized in that: The mounting block (22) is embedded in the interior of the mounting groove (23), and the mounting block (22) is mounted in the interior of the mounting groove (23) via a fixing groove (21) and a mounting bolt (24).

Images