Feeding device of sewing machine

Abstract

The utility model is applicable to the technical field of sewing machines, and provides a sewing machine feeding device which comprises a sewing table and a sewing machine body mounted on the sewing table, a deviation rectifying mechanism is arranged on a roller sleeve, and a vertical clamping and conveying structure for cloth is formed through arrangement of a fixed roller and a movable roller. According to the cloth conveying device, stable conveying of cloth in the horizontal direction can be effectively guaranteed, the device has the capacity of adjusting the longitudinal position of the cloth due to the existence of the deviation rectifying mechanism, the phenomenon that the cloth deviates in the conveying process is avoided, the two sides of the cloth can be limited and rectified through the combination of the movable frame, the supporting base and the deviation rectifying rod, and the conveying efficiency is improved. And the movable frame can move on the roller sleeve and is fixed through the fastening knob, so that the deviation rectifying position can be flexibly adjusted according to the width of the cloth conveniently, the feeding requirements of the cloth with different sizes are met, and the universality and the accuracy of the feeding device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, concretely is a sewing machine feeding device. BACKGROUND

[0002] The sewing machine has wide applicability, can sew fabrics such as cotton, hemp, silk, wool and man-made fiber, can also process leather, plastic and paper, and the formed stitches are neat, beautiful, flat and firm, and the sewing speed is fast and the operation is simple.

[0003] According to the search, CN 221588871 U introduces a kind of sewing machine automatic feeding device, it is cooperated by sewing table, sewing machine body and multiple components, when working, fixed cylinder driving telescopic rod is driven by frame plate to move connecting plate, can adjust the height of first cloth feeding groove and second cloth feeding groove according to cloth thickness, and the adjustability is strong.Cloth is introduced from the bottom of first cloth feeding groove, passes through the gap between cloth feeding shaft and cloth feeding cylinder, cloth feeding shaft rotates and drives cloth feeding by friction, and the cloth after sewing is led out from the bottom of second cloth feeding groove, and cloth movement will drive cloth feeding cylinder to rotate on the outer surface of rotating rod, under the traction of two cloth feeding grooves, cloth feeding power is sufficient, it is convenient to feed thick or different thickness cloth, and flexibility is good.

[0004] However, the feeding device involved in the application is not perfect, and there are still some defects: in the process of feeding cloth, since it does not set the deviation limiting mechanism for the longitudinal cloth, the cloth is easy to deviate in the process of conveying cloth, and once the cloth deviates, it will have adverse effects on the processing quality of cloth, and thus the quality of the sewn product cannot be guaranteed, based on such status quo, it is urgent to design the corresponding technical scheme carefully, so as to effectively solve the existing technical problems, ensure that the sewing machine automatic feeding device can complete the cloth feeding work more stably and accurately, and guarantee the processing quality of cloth. TECHNICAL FIELD

[0005] The utility model aims at providing a kind of sewing machine feeding device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A sewing machine feeding device, comprising a sewing table and a sewing machine body mounted on the sewing table, characterized in that a groove is symmetrically formed on the sewing table on both sides of the sewing machine body, a pair of fixed rollers are rotatably arranged in the groove, one of the fixed rollers is driven by a motor arranged in the sewing table, a roller sleeve is further arranged above the groove on the sewing table, a pair of movable rollers are rotatably arranged side by side in the roller sleeve, a deviation correcting mechanism is arranged on the roller sleeve, the deviation correcting mechanism comprises a pair of movable frames symmetrically movably arranged on the roller sleeve, support seats symmetrically fixed on both sides of the movable frames, and a deviation correcting rod arranged on the support seats, the movable frame is in a U-shaped structure, a connecting plate is further fixedly arranged on the side wall of the movable frame above the roller sleeve, a strip-shaped through hole is formed in the connecting plate, a fastening knob is slidably arranged in the strip-shaped through hole, and a plurality of screw holes threadedly matched with the fastening knob are equally formed on the top surface of the roller sleeve.

[0008] As a further scheme of the present application, a deviation correcting roller is further rotatably arranged on the deviation correcting rod.

[0009] As a further scheme of the present application, a sliding groove is further symmetrically formed on both sides of the roller sleeve, and a sliding seat is symmetrically fixedly arranged on the inner wall of the movable frame and slidably matched with the sliding groove.

[0010] As a further scheme of the present application, the roller sleeve is movably arranged through an elastic unit, the elastic unit comprises fixed seats symmetrically fixed on both ends of the roller sleeve and a telescopic rod movably arranged in the fixed seats, one end of the telescopic rod is fixedly connected with the sewing table, the other end of the telescopic rod is fixedly arranged with a first baffle, and a spring is further arranged on the rod body of the telescopic rod between the first baffle and the fixed seat.

[0011] As a further scheme of the present application, a sleeve is further fixedly arranged on the support seat, the deviation correcting rod is movably arranged in the sleeve, a second baffle is arranged on the top end of the deviation correcting rod, and a ball is arranged on the bottom end of the deviation correcting rod.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The present application forms an up-down clamping and conveying structure for the cloth through the arrangement of the fixed roller and the movable roller, can effectively ensure the stable conveying of the cloth in the horizontal direction, and the existence of the deviation correcting mechanism enables the device to have the ability to adjust the longitudinal position of the cloth, avoids the deviation of the cloth in the conveying process, and the combination of the movable frame, the support seat and the deviation correcting rod can limit and correct the two sides of the cloth, the movable frame can be movably arranged on the roller sleeve and fixed through the fastening knob, the deviation correcting position can be flexibly adjusted according to the width of the cloth, the feeding requirements of different sizes of cloth can be met, and the universality and precision of the feeding device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1This is a schematic diagram of the overall structure of a sewing machine feeding device;

[0015] Figure 2 A front sectional view of a sewing machine feeding device;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 An enlarged view of a roller sleeve in a sewing machine feeding device;

[0018] Figure 5 for Figure 4 Enlarged view of the movable frame;

[0019] In the diagram: 1. Sewing table; 2. Sewing machine body; 3. Groove; 4. Fixed roller; 5. Roller sleeve; 6. Moving roller; 7. Movable frame; 8. Support base; 9. Correcting rod; 10. Connecting plate; 11. Strip-shaped through hole; 12. Fastening knob; 13. Screw hole; 14. Correcting roller; 15. Slide groove; 16. Slide seat; 17. Fixed base; 18. Telescopic rod; 19. Spring; 20. First baffle; 21. Sleeve; 22. Second baffle; 23. Ball bearing. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] Example 1

[0022] Please see Figures 1-5The utility model provides a sewing machine feeding device, including sewing table 1 and the sewing machine body 2 of installation on sewing table 1, recess 3 is symmetrically set up on sewing table 1 and located the both sides of sewing machine body 2, a pair of fixed roller 4 is rotatably arranged in recess 3, one of the conveying roller is driven through the motor (not shown in the drawing) of setting in sewing table 1, and the roll sleeve 5 is further provided above the recess 3 on the sewing table 1, a pair of movable roller 6 is rotatably installed in the roll sleeve 5, and the roll sleeve 5 is provided with a deviation rectifying mechanism, the deviation rectifying mechanism includes a pair of movable frame 7 that is symmetrically movable and clamped on the roll sleeve 5, the support seat 8 that is symmetrically fixedly installed on the both sides of movable frame 7 and the deviation rectifying rod 9 installed on the support seat 8, the movable frame 7 is "U" type structure, the side wall of movable frame 7 is further fixedly provided with the connecting plate 10 above the roll sleeve 5, the strip-shaped through hole 11 is formed in the connecting plate 10, the fastening knob 12 is slidably installed in the strip-shaped through hole 11, and a plurality of screw holes 13 are formed in the top surface of the roll sleeve 5 at equal intervals and are screw-threaded with the fastening knob 12, the setting of fixed roller 4 and movable roller 6 forms the up-down clamping conveying structure of cloth, can effectively guarantee the stable conveying of cloth in the horizontal direction, and the existence of deviation rectifying mechanism makes the device have the ability to adjust the longitudinal position of cloth, avoids the phenomenon that cloth deviates in the conveying process, the combination of movable frame 7, support seat 8 and deviation rectifying rod 9 can limit and rectify the both sides of cloth, and movable frame 7 can be movable on roll sleeve 5 and be fixed through fastening knob 12, so as to conveniently adjust the rectification position flexibly according to the width of cloth, adapt to the feeding demand of cloth of different sizes, improve the versatility and precision of feeding device.

[0023] Among them, the deviation rectifying roller 14 is rotatably installed on the deviation rectifying rod 9, and the setting of the deviation rectifying roller 14 changes the sliding friction between the deviation rectifying rod 9 and the cloth into rolling friction, greatly reduces the friction force suffered by the cloth in the rectification process, effectively avoids the damage to the surface of cloth caused by excessive friction force, such as scratching, fluffing and the like, ensures the appearance quality of cloth, especially more favorable for the feeding of some soft texture or high surface requirement cloth, simultaneously reduces the energy loss when the equipment runs, improves the smoothness and stability of the equipment operation.

[0024] In addition, the both sides of the roll sleeve 5 are symmetrically provided with the sliding groove 15, and the inner wall of the movable frame 7 is symmetrically fixedly provided with the sliding seat 16 that is slidably matched with the sliding groove 15, and the cooperation of the sliding groove 15 and the sliding seat 16 provides accurate guidance for the movement of the movable frame 7 on the roll sleeve 5, so that the movable frame 7 can only move along the predetermined direction when adjusting the position, and deviation or shaking does not occur, ensuring the stability and reliability of the deviation rectifying mechanism as a whole, and the accurate guiding structure helps to improve the accuracy of rectification position adjustment, so that the operator can more accurately position the deviation rectifying rod 9 to the appropriate position, thereby more effectively rectifying the cloth, and further improving the accuracy of the feeding device in controlling the transverse position of the cloth.

[0025] Embodiment 2

[0026] This embodiment is improved on the basis of embodiment 1, specifically:

[0027] Please refer to Figures 3-5 , the roller cover 5 is movably arranged through an elastic unit, the elastic unit comprises fixed seats 17 symmetrically arranged at two ends of the roller cover 5 and telescopic rods 18 movably inserted into the fixed seats 17, one end of the telescopic rod 18 is fixedly connected with the sewing table 1, the other end is fixedly installed with a first baffle 20, and a spring 19 is further sleeved on the rod body of the telescopic rod 18 between the first baffle 20 and the fixed seat 17, the design of the elastic unit enables the roller cover 5 to have a certain elastic floating capability, in the feeding process, when the thickness of the cloth changes, the roller cover 5 can automatically adjust the up-down position under the action of the spring 19, and always maintain a suitable clamping pressure on the cloth, which not only ensures the effective conveying of the cloth, but also will not cause excessive extrusion or damage to the cloth due to excessive pressure, at the same time, the elastic floating structure can also absorb the vibration and impact in the cloth conveying process to a certain extent, reduce the cloth deviation or unstable feeding caused by vibration, and improve the adaptability of the feeding device to different thickness of cloth and the stability of the feeding process.

[0028] Correspondingly, in order to ensure that the deviation correction rod 9 can stably limit the cloth, the support seat 8 is further fixedly embedded with a sleeve 21 in the embodiment, the deviation correction rod 9 is movably inserted into the sleeve 21, a second baffle 22 is installed at the top end of the deviation correction rod 9, and a ball 23 is installed at the bottom end of the deviation correction rod 9, the sleeve 21 provides a stable installation basis and movable guide for the deviation correction rod 9, so that the deviation correction rod 9 can only move in a straight line in the up-down direction in the sleeve 21, ensuring the accuracy and stability of the movement of the deviation correction rod 9, the second baffle 22 at the top end of the deviation correction rod 9 can prevent the deviation correction rod 9 from being pulled out of the sleeve 21, increasing the safety and reliability of the device, and the ball 23 at the bottom end of the deviation correction rod 9 further reduces the friction between the deviation correction rod 9 and the sewing table 1, facilitating the adjustment of the position of the deviation correction rod 9.

[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0030] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A sewing machine feeding device comprising a sewing table (1) and a sewing machine body (2) mounted on the sewing table (1), characterized in that, The sewing table (1) is provided with a groove (3) on both sides of the sewing machine body (2) symmetrically, a pair of fixed rollers (4) are rotatably arranged in the groove (3), one of the fixed rollers is driven by a motor arranged in the sewing table (1), a roller sleeve (5) is arranged above the groove (3) on the sewing table (1), a pair of movable rollers (6) are rotatably arranged in the roller sleeve (5), a deviation correcting mechanism is arranged on the roller sleeve (5), the deviation correcting mechanism comprises a pair of movable frames (7) movably arranged on the roller sleeve (5) symmetrically, support seats (8) fixedly arranged on both sides of the movable frames (7) symmetrically, and deviation correcting rods (9) arranged on the support seats (8), the movable frames (7) are in "U" shape, a connecting plate (10) is fixedly arranged on the side wall above the roller sleeve (5), a strip-shaped through hole (11) is arranged on the connecting plate (10), a fastening knob (12) is slidably arranged in the strip-shaped through hole (11), and a plurality of screw holes (13) threadedly matched with the fastening knob (12) are arranged on the top surface of the roller sleeve (5) at equal intervals.

2. The sewing machine feed device of claim 1, wherein, A deviation correcting roller (14) is rotatably arranged on the deviation correcting rod (9).

3. The sewing machine feed device of claim 1, wherein, Sliding grooves (15) are symmetrically arranged on both sides of the roller sleeve (5), and sliding seats (16) are fixedly arranged on the inner walls of the movable frames (7) and slidably matched with the sliding grooves (15).

4. The sewing machine feed device of claim 1, wherein, The roller sleeve (5) is movably arranged through an elastic unit, the elastic unit comprises fixed seats (17) fixedly arranged at both ends of the roller sleeve (5) and telescopic rods (18) movably arranged in the fixed seats (17), one end of the telescopic rod (18) is fixedly connected with the sewing table (1), the other end is fixedly arranged with a first baffle (20), and a spring (19) is arranged on the rod body between the first baffle (20) and the fixed seat (17).

5. The sewing machine feed device of claim 1 wherein, A sleeve pipe (21) is fixedly arranged on the support seat (8), the deviation correcting rod (9) is movably arranged in the sleeve pipe (21), a second baffle (22) is arranged at the top end of the deviation correcting rod (9), and a ball (23) is arranged at the bottom end of the deviation correcting rod (9).

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