Novel folded cloth guide mechanism for double-needle sewing

Abstract

The utility model discloses a novel folded cloth guide mechanism for double-needle sewing, which belongs to the field of cloth guide mechanisms and comprises a rack, a machine table is fixedly connected to the top surface of the rack, a double-needle sewing machine is fixedly connected to the top surface of the machine table, and a cloth guide device is arranged on the top surface of the machine table and located in front of the double-needle sewing machine. The cloth guiding device comprises a guiding roller, a pinion, a driving motor, a large gear, a rotary knob, a concave frame and a cloth pressing roller, the arranged cloth guiding device is matched with the double-needle sewing machine for use, the double-needle sewing machine can have the function of guiding the folded cloth, the folded cloth does not need to be continuously and manually pressed and moved, guiding is achieved, and the working efficiency is improved. The double-needle sewing machine is simple and convenient to operate, the workload of workers is relieved, the automation degree of the double-needle sewing machine in use is improved, it can be ensured that folded cloth moves forwards along a straight line for a long time, the problem that the folded cloth is prone to skewing in the moving process is solved, and the sewing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cloth guide mechanism field, especially in a new type of double needle sewing folding cloth guide mechanism. BACKGROUND

[0002] Double needle sewing machine (also called double needle flat car) is a kind of commonly used sewing machine with two needles two synchronization, three synchronization, corner turning and the effect of double line parallel, mutual parallelism.But it is indispensable, although flat car can sometimes replace double needle, consider efficiency in batch production flat car is used to do the work of double needle, unless small production, double needle efficiency is high, and double line parallel neat and beautiful.Double needle sewing machine commonly used ordinary and computer type, suitable for thin thick fabric.

[0003] In the prior art, in the process of sewing the cloth by the double needle sewing machine, when sewing some long cloth, according to the requirement when sewing, the cloth is often folded and sewn, when the cloth is folded, the worker needs to manually push and press the folded cloth under the machine head, and complete the sewing of the folded cloth, however, since the folded cloth still has a long length, when sewing the sewing part, the worker needs to continuously press and move the folded cloth, in this process, the manual pressing and moving of the folded cloth is relatively inconvenient, and increases the workload of the worker, at the same time, long time cannot ensure that the folded cloth moves along a straight line, so that the folded cloth is easy to be skewed after moving, which reduces the sewing effect of the folded cloth. Practical new type

[0004] The main purpose of the utility model is to provide a new type of double needle sewing folding cloth guide mechanism, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] The utility model provides a new type of double needle sewing folding cloth guide mechanism, including frame, the top surface fixed connection of frame has machine table, and the top surface fixed connection of machine table has double needle sewing machine, the top surface of machine table and located double needle sewing machine's front is equipped with cloth guide device, and cloth guide device includes guide roller, pinion, drive motor, gear wheel, knob, concave frame and cloth presser, the top surface in machine table is movably connected with the both ends first rotating rod of guide roller, and the end wall of one end first rotating rod is fixedly connected with pinion, the side wall of base of machine table bottom is fixedly connected with drive motor, and the output end of drive motor is fixedly connected with gear wheel and engages with pinion, the top surface guide rod of concave frame is movably connected with the top surface L shaped plate seat of frame, and the top surface of L shaped plate seat is movably connected with the third rotating rod of bottom through knob, the top surface screw rod of concave frame is movably connected with third rotating rod, and the cloth presser is movably connected in concave frame through the second rotating rod of both ends.

[0007] Preferably, the top surface of the machine table is provided with a transverse opening, and first rotating holes are respectively formed in the inner end walls of the transverse opening. The left front side of the bottom surface of the machine table is further fixedly installed with a base.

[0008] Preferably, the L-shaped plate seat is fixedly installed on the top surface of the machine table, and symmetric guide holes are formed in the top surface of the transverse part of the L-shaped plate seat. Fixed holes are further formed in the top surface of the transverse part of the L-shaped plate seat between the guide holes, and bearings are fixedly installed in the holes.

[0009] Preferably, the bottom surface of the knob is fixedly installed with a third rotating rod, and the third rotating rod is fixedly installed with the bearing. A screw hole is formed in the bottom surface of the third rotating rod, and a through hole is formed in the top surface of the knob and communicates with the screw hole.

[0010] Preferably, a group of symmetric guide rods are fixedly installed on the top surface of the concave frame, and the guide rods are inserted into the guide holes. A screw rod is further fixedly installed on the top surface of the concave frame between the guide rods, and the screw rod is threadedly connected with the screw hole and passes through the through hole. Second rotating holes are respectively formed in the inner walls of the recesses of the concave frame, and second rotating rods are respectively fixedly installed on the both ends of the cloth presser and movably installed in the second rotating holes.

[0011] Preferably, first rotating rods are respectively fixedly installed on the both ends of the guide roller, and the first rotating rods are movably installed in the first rotating holes. A pinion is fixedly installed on the outer end of the left end first rotating rod. The drive motor is fixedly installed on the inner side wall of the base, and a gear wheel is fixedly installed on the output end of the drive motor. The gear wheel and the pinion are engaged with each other. A plurality of teeth are fixedly installed on the outer walls of the guide roller and the cloth presser in a ring array.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] In the utility model, the cloth guiding device is arranged to cooperate with the use of the double-needle sewing machine, after the folded cloth is placed on the top surface of the machine table and passes between the guide roller and the pressing roller, the knob is rotated through the third rotating rod to make the knob rotate, and the screw rod passes through the through hole along the screw hole to drive the concave frame to move downward along the guide hole through the guide rod, until the pressing roller is pressed against the top surface of the folded cloth according to the thickness of the folded cloth, so as to replace the manual pressing operation on the folded cloth, and the driving motor is started to drive the output end to rotate the large gear, so that the large gear rotates to drive the small gear under the rotating meshing action, and the small gear drives the guide roller to rotate through the first rotating rod, so that the folded cloth is moved when the guide roller rotates, and the guide roller and the pressing roller move relatively, and the guide roller and the pressing roller are provided with the toothed bar, so that the friction force during the movement of the folded cloth is improved, the displacement of the folded cloth between the guide roller and the pressing roller is prevented, the operation of manually pressing and moving the folded cloth is replaced, and the double-needle sewing machine has the function of guiding the folded cloth, manual pressing and moving of the folded cloth are not required, the operation is simple and convenient, the workload of the staff is reduced, the automation degree of the double-needle sewing machine during use is improved, the folded cloth can advance along a straight line for a long time, the problem of easy skewing of the folded cloth during movement is avoided, and the sewing effect of the folded cloth is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall structure schematic view of the utility model;

[0015] Figure 2 It is an overall structure plane left view schematic view of the utility model;

[0016] Figure 3 It is an overall structure schematic view of the machine table of the utility model;

[0017] Figure 4 It is a structure split schematic view of the cloth guiding device of the utility model;

[0018] Figure 5 It is a cut schematic view of the knob and the third rotating rod of the utility model.

[0019] In the diagram: 1. Frame; 2. Machine base; 3. Double needle sewing machine; 4. Fabric guide device; 5. Horizontal opening; 6. First rotating hole; 7. Base; 8. L-shaped plate base; 9. Guide hole; 10. Fixing hole; 11. Bearing; 12. Guide roller; 13. First rotating rod; 14. Pinion; 15. Drive motor; 16. Large gear; 17. Knob; 18. Third rotating rod; 19. Screw hole; 20. Through hole; 21. Concave frame; 22. Guide rod; 23. Screw; 24. Second rotating hole; 25. Pressing roller; 26. Second rotating rod; 27. Threaded rod. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1 - Figure 4 As shown, a novel folding fabric guiding mechanism for double-needle sewing includes a frame 1, a machine platform 2 fixedly connected to the top surface of the frame 1, and a double-needle sewing machine 3 fixedly connected to the top surface of the machine platform 2.

[0022] The working principle of the double-needle sewing machine 3 is to use two needles to form loops in the fabric, and then sew the fabric together through the tension and pressure of the thread. When the machine starts, both needles move downwards simultaneously, forming a loop. When the loop is tightened, the needles stop moving and remain in place, at which point the loop has formed a secure seam. Then, the machine continues to move downwards to complete the sewing of the next seam.

[0023] A fabric guiding device 4 is provided on the top surface of the machine base 2 and in front of the double-needle sewing machine 3. The fabric guiding device 4 includes a guide roller 12, a small gear 14, a drive motor 15, a large gear 16, a knob 17, a concave frame 21, and a pressure roller 25. The guide roller 12 is movably connected to the top surface of the machine base 2 through first rotating rods 13 at both ends. The small gear 14 is fixedly connected to the end wall of one end of the first rotating rod 13. The drive motor 15 is fixedly connected to the side wall of the base 7 on the bottom surface of the machine base 2. The large gear 16 is fixedly connected to the output end of the drive motor 15 and interacts with the small gear 16. The wheel 14 is engaged. The concave frame 21 is movably connected to the L-shaped plate seat 8 on the top surface of the frame 1 via the guide rod 22 on the top surface. The knob 17 is movably connected to the top surface of the L-shaped plate seat 8 via the third rotating rod 18 on the bottom surface. The concave frame 21 is also movably connected to the third rotating rod 18 via the screw 23 on the top surface. The pressure roller 25 is movably connected to the concave frame 21 via the second rotating rods 26 at both ends. The fabric guiding device 4 enables the double needle sewing machine 3 to automatically press, move, guide, and feed the folded fabric, thereby replacing manual operation and improving sewing effect and efficiency.

[0024] As Figure 3 shown, the top surface of the machine table 2 is provided with a transverse opening 5, which can provide a rotating space for the ten guide rollers 12, and the inside two end walls of the transverse opening 5 are respectively provided with a first rotating hole 6, which is used to cooperate with the first rotating rod 13 to realize the rotating operation, and the bottom surface of the left front side of the machine table 2 is also fixedly provided with a base 7, which is used to fix the driving motor 15;

[0025] As Figure 3 shown, the L-shaped plate seat 8 is fixedly installed on the top surface of the machine table 2, and the top surface of the transverse part of the L-shaped plate seat 8 is provided with symmetrical guide holes 9, which are used to cooperate with the guide rods 22 to guide the movement of the concave frame 21, and the top surface of the transverse part of the L-shaped plate seat 8 and between the guide holes 9 is also provided with a fixed hole 10, and the inside of the fixed hole 10 is fixedly provided with a bearing 11, and the bearing 11 installed in the fixed hole 10 is used to cooperate with the third rotating rod 18 to realize the positioning and rotating operation;

[0026] As Figure 4 and Figure 5 shown, the bottom surface of the knob 17 is fixedly provided with the third rotating rod 18, and the third rotating rod 18 is fixedly installed with the bearing 11, and the bottom surface of the third rotating rod 18 is provided with a threaded hole 19, and the top surface of the knob 17 is provided with a through hole 20 communicating with the threaded hole 19, and after rotating the knob 17, the third rotating rod 18 will rotate in the bearing 11, and the through hole 20 provided on the top surface of the knob 17 can ensure that the screw rod 23 moves up and down, and the threaded hole 19 provided at the bottom end of the third rotating rod 18 is used to drive the screw rod 23 to move;

[0027] As Figure 4 shown, the top surface of the concave frame 21 is fixedly provided with a group of symmetrical guide rods 22, and the guide rods 22 are fixedly installed in the guide holes 9, and the top surface of the concave frame 21 and between the guide rods 22 is also fixedly provided with a screw rod 23, and the screw rod 23 is threadedly connected with the threaded hole 19 and passes through the through hole 20, and the two sides of the inner wall of the recess of the concave frame 21 are respectively provided with a second rotating hole 24, and the two ends of the pressing roller 25 are respectively fixedly provided with a second rotating rod 26 and movably installed in the second rotating hole 24, when the screw rod 23 passes through the through hole 20 and moves downward along the threaded hole 19, it will push the concave frame 21 to move synchronously, and the concave frame 21 moves along the guide hole 9 through the guide rods 22 on the top surface, until the pressing roller 25 in the concave frame 21 is pressed on the top surface according to the thickness of the folded cloth, therefore, when guiding the folded cloth, it can always press the folded cloth to prevent the folded cloth from loosening and affecting the sewing operation, at the same time, when the folded cloth moves, it will also drive the pressing roller 25 to rotate, so that the second rotating rod 26 at both ends of the pressing roller 25 rotates in the second rotating hole 24;

[0028] As Figure 4As shown, the two ends of the guide roller 12 are respectively fixedly provided with first rotating rods 13, and the first rotating rods 13 are movably arranged in the first rotating holes 6. The outer end of the first rotating rod 13 at the left end is fixedly provided with a pinion 14. The driving motor 15 is fixedly arranged on the inner side wall of the base 7, and the output end of the driving motor 15 is fixedly provided with a gear wheel 16. The gear wheel 16 and the pinion 14 are in meshing engagement with each other. A plurality of teeth strips 27 are fixedly arranged on the outer walls of the guide roller 12 and the pressing roller 25 in a ring array. After the folded cloth is pressed between the pressing roller 25 and the guide roller 12, the driving motor 15 can be turned on to drive the output end to rotate the gear wheel 16. The gear wheel 16 drives the pinion 14 to rotate through the first rotating rod 13, so that the guide roller 12 is rotated. Therefore, the folded cloth can continuously move in a straight line. At the same time, the teeth strips 27 can bite and advance the folded cloth to prevent the folded cloth from being skewed and deviated due to external factors when moving.

[0029] The specific use principle of the cloth guide device 4 when cooperating with the double-needle sewing machine 3 to sew the folded cloth is as follows.

[0030] After folding the longer cloth, place the folded cloth on the top surface of the machine table 2, move the folded cloth to align the part to be sewn with the head part of the double needle sewing machine 3, and after passing between the guide roller 12 and the presser foot 25, rotate the knob 17 located on the top surface of the transverse part of the L-shaped plate seat 8, the knob 17 will rotate the third rotating rod 18 in the bearing 11 installed in the fixed hole 10 on the top surface of the transverse part of the L-shaped plate seat 8, at this time, the screw rod 23 installed on the top surface of the concave frame 21 will pass through the through hole 20 on the top surface of the knob 17 and move downward along the screw hole 19 on the bottom end of the third rotating rod 18, the screw rod 23 will push the concave frame 21 to move synchronously, and the guide rod 22 installed on the top surface of the concave frame 21 will move along the guide hole 9 on the top surface of the L-shaped plate seat 8, until the presser foot 25 movably installed in the concave frame 21 is pressed against the top surface of the folded cloth, at the same time, the long strip design of the guide roller 12 and the presser foot 25 makes the part on the top surface of the machine table 2 that does not need mechanical energy for sewing also be pressed between the guide roller 12 and the presser foot 25, to ensure that this part will not be pulled by external force to cause the folded cloth to move, then start the driving motor 15 installed on the inner side wall of the base 7, the driving motor 15 will drive the large gear 16 on the driving end to rotate, the large gear 16 will drive the small gear 14 to rotate under the action of meshing, the small gear 14 will drive the first rotating rod 13 at both ends of the guide roller 12 to rotate in the first rotating hole 6, so that the first rotating rod 13 drives the guide roller 12 to rotate in the transverse opening 5 on the top surface of the machine table 2, when the guide roller 12 rotates in the transverse opening 5, because the folded cloth is pressed between the guide roller 12 and the presser foot 25, and cooperates with the use of the teeth 27 installed on the outer wall of the guide roller 12 and the presser foot 25, so the folded cloth can be pressed and guided and fed in a straight line by means of occlusion, until the folded cloth passes under the head of the double needle sewing machine 3 to complete sewing, and in this process, the folded cloth can be continuously guided and fed, without the need for manual pressing and moving the guide and feeder by artificial means, which is simple and convenient, not only reduces the workload of the staff, but also improves the automation degree of the double needle sewing machine 2 during use, and can ensure that the folded cloth always advances in a straight line for a long time, avoiding the problem that the folded cloth is easily skewed during movement, thereby achieving the purpose of improving the sewing effect of the folded cloth.

[0031] In summary, only the preferred embodiments of the present application are described above, and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, various improvements and replacements of equivalent parts can be made without departing from the scope of the present application, or some technical features can be replaced by equivalents, as long as they are within the spirit and principles of the present application. All should be included in the protection scope of the present application.

Claims

1. A novel folding fabric guide mechanism for double needle sewing, comprising a rack (1), the top surface of the rack (1) is fixedly connected with a machine table (2), and the top surface of the machine table (2) is fixedly connected with a double needle sewing machine (3), characterized in that: The top surface of the machine table (2) and located in front of the double needle sewing machine (3) is provided with cloth guide device (4), and cloth guide device (4) includes guide roller (12), pinion (14), drive motor (15), gear (16), knob (17), concave frame (21) and cloth roller (25), the guide roller (12) is movably connected in the top surface of the machine table (2) through the first rotating rod (13) at both ends, and the pinion (14) is fixedly connected on the end wall of one end of the first rotating rod (13), the drive motor (15) is fixedly connected on the side wall of the base (7) of the bottom surface of the machine table (2), and the gear (16) is fixedly connected on the output end of the drive motor (15) and engaged with the pinion (14), the concave frame (21) is movably connected with the L-shaped plate seat (8) on the top surface of the rack (1) through the guide rod (22) on the top surface, and the knob (17) is movably connected on the top surface of the L-shaped plate seat (8) through the third rotating rod (18) on the bottom surface, the concave frame (21) is also movably connected with the third rotating rod (18) through the screw rod (23) on the top surface, and the cloth roller (25) is movably connected in the concave frame (21) through the second rotating rod (26) at both ends.

2. A novel folded cloth guiding mechanism for twin needle sewing as claimed in claim 1, wherein: The top surface of the machine table (2) is provided with a transverse port (5), and first rotating holes (6) are respectively formed in the inner end walls of the transverse port (5), and a base (7) is further fixedly installed on the front left side of the bottom surface of the machine table (2).

3. A novel folded fabric guiding mechanism for twin needle sewing as claimed in claim 2, wherein: The L-shaped plate seat (8) is fixedly installed on the top surface of the machine table (2), and symmetric guide holes (9) are formed in the top surface of the transverse part of the L-shaped plate seat (8), and a fixing hole (10) is further formed in the top surface of the transverse part of the L-shaped plate seat (8) between the guide holes (9), and a bearing (11) is fixedly installed in the hole of the fixing hole (10).

4. A novel folded fabric guiding mechanism for twin needle sewing as claimed in claim 3, wherein: A third rotating rod (18) is fixedly installed on the bottom surface of the knob (17), and the third rotating rod (18) is fixedly installed together with the bearing (11), a screw hole (19) is formed in the bottom surface of the third rotating rod (18), and a through hole (20) is formed in the top surface of the knob (17) and communicates with the screw hole (19).

5. A novel folded fabric guiding mechanism for twin needle sewing as claimed in claim 4, wherein: A group of symmetric guide rods (22) are fixedly installed on the top surface of the concave frame (21), and the guide rods (22) are insertedly installed in the guide holes (9), a screw rod (23) is further fixedly installed on the top surface of the concave frame (21) between the guide rods (22), and the screw rod (23) is threadedly connected with the screw hole (19) and passes through the through hole (20), second rotating holes (24) are respectively formed in the inner walls of the recesses of the concave frame (21), and second rotating rods (26) are respectively fixedly installed at both ends of the cloth roller (25) and movably installed in the second rotating holes (24).

6. A novel folded fabric guiding mechanism for twin needle sewing as claimed in claim 5, wherein: Both ends of the guide roller (12) are fixedly provided with first rotating rods (13), and the first rotating rods (13) are movably arranged in the first rotating holes (6). The outer end of the left end of the first rotating rod (13) is fixedly provided with a pinion (14). The driving motor (15) is fixedly arranged on the inner side wall of the base (7), and the output end of the driving motor (15) is fixedly provided with a gear wheel (16). The gear wheel (16) and the pinion (14) are meshed with each other. The outer wall of the guide roller (12) and the cloth pressing roller (25) is further fixedly provided with a plurality of teeth strips (27) in an annular array.

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