Knitwear lockstitch sewing machine

Abstract

The utility model relates to the technical field of knitwear lockstitch sewing, and provides a knitwear lockstitch sewing machine which is characterized in that side seats are arranged on two sides of the top of a supporting table, and a screwing rod and first conical teeth are driven to rotate by screwing screwing handles on the back surfaces of the side seats; at the moment, second conical teeth connected to the upper side and the lower side of a first conical tooth in a meshed mode can synchronously rotate and drive a threaded rod to rotate, and at the moment, lifting sliding seats connected to the outer side of the threaded rod in a threaded mode can synchronously and oppositely move along with rotation of the threaded rod till rollers located on one sides of the lifting sliding seats tightly press textiles located on the crawler belt conveying mechanism and used for conveying; the distance between the two sets of rotatable rollers is adjusted till the textiles are pressed for conveying work, abrasion to the textiles is reduced, and meanwhile the situation that the textiles which are located on the crawler belt conveying mechanism and are conveyed are wrinkled in the conveying process, and then the spinning effect is affected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flat-sewing of knitted products, and in particular to a flat-sewing machine for knitted products. Background Art

[0002] The lockstitch sewing machine is an industrial sewing machine that uses two sewing threads, a needle and a shuttle, to form a lockstitch. It can sew two or more layers of sewing materials together or sew decorative stitches on sewing materials. It is the most basic type of industrial sewing machine. The double-thread lockstitch stitch it sews is the strongest among all kinds of stitches, so it has a wide range of uses. It can sew silk, linen, cotton, wool, chemical fiber and other fabrics, as well as clothing, clothing, bedding, bags, tablecloths, curtains, etc. made of soft leather and artificial leather, and can sew from two layers of silk to multiple layers of soft leather.

[0003] After searching, the announcement number CN213835810U discloses a high-speed knitwear flat-sewing machine, which relates to the field of textile sewing technology, including a support frame, a workbench fixedly welded on the top of the support frame, a motor box fixedly installed on the left side of the workbench, a motor fixedly installed at the bottom of the inner cavity of the motor box, the output end of the motor is connected to the connecting shaft, and a rolling mechanism is arranged on the top of the workbench. The rolling mechanism is arranged in three, and the rolling mechanism includes a roller mounting frame, a roller bearing and a roller, and the roller mounting frame is fixedly welded on the corresponding mounting plate inside the workbench. The utility model installs a rolling mechanism designed on the workbench. When processing textiles, the motor is turned on to drive the roller to rotate, and the friction between the textile and the roller is increased by pressing the fixing mechanism, thereby driving the processed textile to move, reducing the physical exertion of workers at work and improving production efficiency.

[0004] However, the above-mentioned high-speed knitwear flat-seam sewing machine places the textile on a workbench, and compacts and transports the textile through pressure sensors and rollers to complete the textile transport and weaving work. The compaction and transportation process of the textile by the pressure sensor and the roller not only causes wear to the textile, but also the protrusions set on the roller on the workbench for auxiliary transportation can easily cause the textile to be affected by the raised rollers to produce wrinkles, thereby affecting the weaving effect. Utility Model Content

[0005] The utility model provides a flat-sewing machine for knitted fabrics, which solves the problem in the prior art that the pressure sensor and the roller compact the textiles and convey them, which not only causes wear to the textiles, but also the raised roller on the workbench easily causes wrinkles to the textiles during the conveying process, thus resulting in unsatisfactory textile effects.

[0006] The technical scheme of the utility model is as follows: a flat-sewing machine for knitted fabrics, comprising a support platform, a sewing machine mechanism arranged on one side of the top of the support platform for sewing knitted fabrics, and a crawler conveyor mechanism arranged in the middle of the support platform for conveying knitted fabrics, side seats are symmetrically and fixedly connected on both sides of the top of the support platform, a rail groove is vertically opened on the front of the side seat, an adjustment component is arranged inside the side seat, the adjustment component includes a twistable twist rod and a first conical tooth that rotates therewith, a pressing component is arranged inside the side seat, the pressing component includes two groups of second conical teeth that mesh and rotate with the first conical teeth, the pressing component also includes a threaded rod that rotates synchronously with the second conical teeth and a lifting slide seat arranged on the outside of the threaded rod and lifted and lowered synchronously with the rotation of the threaded rod, a driven component is rotatably connected in a groove on one side of the lifting slide seat, and the driven component includes a roller for pressing and limiting the knitted fabric.

[0007] Preferably, the adjustment assembly further comprises a knob, which is arranged on one side of the back side of the side seat and is fixedly connected to the knob.

[0008] Preferably, the twist rod is rotatably connected to the circular groove on the back side of the side seat through a twist handle, and the twist rod is fixedly connected to the first conical tooth.

[0009] Preferably, the threaded rod is symmetrically arranged in the rail groove in two groups, and the end of the threaded rod is fixedly connected with a second conical tooth. The second conical tooth is divided into two groups and is respectively located on the upper and lower sides of the first conical tooth and is meshingly connected with the first conical tooth.

[0010] Preferably, a thread groove is provided through the middle of the lifting slide, the thread groove matches the threaded rod, and the lifting slide is threadedly connected to the outside of the threaded rod through the thread groove.

[0011] Preferably, the lifting slide is symmetrically fixedly connected to the limiting blocks on both sides, and the lifting slide and the limiting blocks are integrated and match the shape of the rail groove.

[0012] Preferably, the driven component includes a rotating shaft, bearings are provided in grooves on both sides of the rotating shaft, the outer ring of the bearing is fixedly connected to the inner wall of the rotating shaft groove, the inner ring of the bearing is fixedly connected to the fixed column, and the other side of the fixed column is fixedly connected to the lifting slide.

[0013] Preferably, the rotating shaft and the roller are fixedly connected via connecting rods distributed in a ring shape, and an anti-slip ring layer is sleeved on the outer surface of the roller.

[0014] The beneficial effects of the utility model are:

[0015] The utility model is provided with side seats on both sides of the top of the support platform, and the twisting handle on the back of the side seat is turned to drive the twisting rod and the first conical tooth to rotate. At this time, the second conical teeth meshing and connected to the upper and lower sides of the first conical teeth will rotate synchronously and drive the threaded rod to rotate. At this time, the lifting slide seat threadedly connected to the outside of the threaded rod will move toward each other synchronously with the rotation of the threaded rod until the roller located on one side of the lifting slide seat presses the textiles for conveying on the crawler conveyor mechanism. By adjusting the spacing between the two sets of rotatable rollers until the textiles are pressed for conveying, not only can the wear on the textiles be reduced, but also wrinkles can be avoided in the textiles being conveyed on the crawler conveyor mechanism during the conveying process, thereby affecting the textile effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a front view of the overall device of the utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of the side seat of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the side seat of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the compression assembly of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the driven component of the utility model;

[0023] In the figure: 1. support platform; 2. sewing machine mechanism; 3. crawler conveyor mechanism; 4. side seat; 41. rail groove; 5. adjustment assembly; 51. screw rod; 511. screw handle; 52. first conical tooth; 6. pressing assembly; 61. threaded rod; 62. lifting slide; 621. threaded groove; 622. limit block; 63. second conical tooth; 7. driven assembly; 71. roller; 711. anti-slip ring layer; 72. rotating shaft; 721. bearing; 722. fixed column; 73. connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with 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 of 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] See also Figure 1 and Figure 3 The utility model provides a technical solution: a knitted product flat-sewing machine, comprising a support platform 1, a sewing machine mechanism 2 arranged on one side of the top of the support platform 1 for sewing knitted products, and a crawler conveying mechanism 3 arranged in the middle of the support platform 1 for conveying knitted products. Side seats 4 are symmetrically fixedly connected to the top of the support platform 1 on both sides, and a track groove 41 is vertically opened on the front of the side seat 4. An adjusting component 5 is arranged inside the side seat 4. The adjusting component 5 includes a twistable twisting rod 51 and a first conical tooth 52 that rotates therewith. A pressing component 6 is arranged inside the side seat 4. The pressing component 6 includes two groups of first conical teeth 52 that rotate with the first conical teeth 52. The second conical teeth 63 are meshed and rotated, and the pressing component 6 also includes a threaded rod 61 that rotates synchronously with the second conical teeth 63, and a lifting slide 62 that is arranged on the outside of the threaded rod 61 and rises and falls synchronously with the rotation of the threaded rod 61. A driven component 7 is rotatably connected in a groove on one side of the lifting slide 62. The driven component 7 includes a roller 71 for pressing and limiting the knitted fabric. This design solves the problem in the prior art that the pressure sensor and the roller compact and convey the textiles not only cause wear to the textiles, but also the raised roller on the workbench is likely to cause wrinkles to the textiles during the conveying process, thereby resulting in an unsatisfactory textile effect.

[0026] See also Figure 2 - Figure 5 The adjustment assembly 5 also includes a screw handle 511, which is arranged on one side of the back of the side seat 4 and is fixedly connected to the screw rod 51. The screw rod 51 is rotatably connected to the circular groove on the back of the side seat 4 through the screw handle 511, and the screw rod 51 is fixedly connected to the first conical tooth 52. The threaded rod 61 is symmetrically arranged in the rail groove 41 in two groups, and the end of the threaded rod 61 is fixedly connected with the second conical tooth 63. The second conical tooth 63 is two groups located on the upper and lower sides of the first conical tooth 52 and is meshed with the first conical tooth 52. A thread groove 621 is opened through the middle of the lifting slide 62, and the thread groove 621 matches the threaded rod 61. The lifting slide 62 is threadedly connected to the outer side of the threaded rod 61 through the thread groove 621. By screwing The twist handle 511 on the back side of the side seat 4 drives the twist rod 51 and the first conical tooth 52 to rotate. At this time, the second conical teeth 63 meshing with the upper and lower sides of the first conical teeth 52 will rotate synchronously and drive the threaded rod 61 to rotate. At this time, the lifting slide 62 threadedly connected to the outside of the threaded rod 61 will move toward each other synchronously with the rotation of the threaded rod 61 until the roller 71 on one side of the lifting slide 62 presses the textiles for transportation on the crawler conveyor mechanism 3. The limiting blocks 622 are symmetrically fixed on both sides of the lifting slide 62. The lifting slide 62 and the limiting blocks 622 are integrated and match the shape of the track groove 41. The design can avoid lateral position deviation of the lifting slide 62 when it is lifted and moved in the groove of the threaded rod 61.

[0027] See also Figure 6 The driven component 7 includes a rotating shaft 72, and bearings 721 are grooved on both sides of the rotating shaft 72. The outer ring of the bearing 721 is fixedly connected to the inner wall of the groove of the rotating shaft 72, the inner ring of the bearing 721 is fixedly connected to the fixed column 722, and the other side of the fixed column 722 is fixedly connected to the lifting slide 62. The rotating shaft 72 and the roller 71 are fixedly connected by a connecting rod 73 distributed in an annular shape. The outer surface of the roller 71 is sleeved with an anti-skid ring layer 711. By arranging the bearing 721 at the connection between the rotating shaft 72 and the fixed column 722, the rotation of the roller 71 can be smoother. By sleeved with the anti-skid ring layer 711 on the outer side of the roller 71, the friction between the roller 71 and the textile can be increased to avoid slipping.

[0028] The working principle and use process of the utility model are as follows:

[0029] In the present design, side seats 4 are provided on both sides of the top of the support platform 1. When the textile is woven on the upper part of the crawler conveyor mechanism 3 waiting for transportation, the twist handle 511 on the back of the side seat 4 can be turned to drive the twist rod 51 and the first conical tooth 52 to rotate. At this time, the second conical teeth 63 meshing and connected to the upper and lower sides of the first conical teeth 52 will rotate synchronously and drive the threaded rod 61 to rotate. At this time, the lifting slide 62 threadedly connected to the outside of the threaded rod 61 will move synchronously with the rotation of the threaded rod 61 until the roller 71 on one side of the lifting slide 62 presses the textile for transportation on the crawler conveyor mechanism 3. By adjusting the spacing between the two sets of rotatable rollers 71 until the textile is pressed for transportation, not only can the wear on the textile be reduced, but also wrinkles on the textile being transported on the crawler conveyor mechanism 3 can be avoided during the transportation process, thereby affecting the textile effect.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A knitted product lockstitch sewing machine, comprising a support platform (1), a sewing machine mechanism (2) arranged on one side of the top of the support platform (1) for sewing knitted products, and a crawler conveying mechanism (3) arranged in the middle of the support platform (1) for conveying knitted products, characterized in that: The top of the support platform (1) is symmetrically fixedly connected with side seats (4) on both sides, and a rail groove (41) is vertically opened on the front of the side seat (4). An adjustment component (5) is arranged inside the side seat (4), and the adjustment component (5) includes a screwing rod (51) and a first conical tooth (52) that rotates therewith. A pressing component (6) is arranged inside the side seat (4), and the pressing component (6) includes two groups of second conical teeth (63) that mesh and rotate with the first conical teeth (52). The pressing component (6) also includes a threaded rod (61) that rotates synchronously with the second conical teeth (63) and a lifting slide (62) that is arranged on the outside of the threaded rod (61) and is synchronously lifted and lowered with the threaded rod (61). A driven component (7) is rotatably connected in a groove on one side of the lifting slide (62), and the driven component (7) includes a roller (71) for pressing and limiting the knitted fabric.

2. A knitwear lockstitch sewing machine according to claim 1, characterized in that: The adjustment assembly (5) further comprises a twist handle (511), wherein the twist handle (511) is arranged on one side of the back side of the side seat (4) and is fixedly connected to the twist rod (51).

3. A knitwear lockstitch sewing machine according to claim 1, characterized in that: The twisting rod (51) is rotatably connected to the circular slot on the back side of the side seat (4) via a twisting handle (511), and the twisting rod (51) is fixedly connected to the first conical tooth (52).

4. A knitwear lockstitch sewing machine according to claim 1, characterized in that: The threaded rod (61) is symmetrically arranged in the rail groove (41) in two groups, one above the other; the end of the threaded rod (61) is fixedly connected with a second conical tooth (63); the second conical tooth (63) is arranged in two groups, respectively located on the upper and lower sides of the first conical tooth (52) and meshingly connected with the first conical tooth (52).

5. A knitwear lockstitch sewing machine according to claim 1, characterized in that: A thread groove (621) is formed through the middle of the lifting slide (62), the thread groove (621) matches the threaded rod (61), and the lifting slide (62) is threadedly connected to the outer side of the threaded rod (61) through the thread groove (621).

6. A knitwear lockstitch sewing machine according to claim 1, characterized in that: The lifting slide (62) is symmetrically fixedly connected to the limiting blocks (622) on both sides; the lifting slide (62) and the limiting blocks (622) are integrated and match the shape of the inner groove of the rail groove (41).

7. A knitwear lockstitch sewing machine according to claim 1, characterized in that: The driven assembly (7) comprises a rotating shaft (72), and bearings (721) are provided in grooves on both sides of the rotating shaft (72), the outer ring of the bearing (721) is fixedly connected to the inner wall of the groove of the rotating shaft (72), the inner ring of the bearing (721) is fixedly connected to the fixed column (722), and the other side of the fixed column (722) is fixedly connected to the lifting slide seat (62).

8. A knitwear lockstitch sewing machine according to claim 7, characterized in that: The rotating shaft (72) and the roller (71) are fixedly connected via a connecting rod (73) distributed in an annular shape, and an anti-slip ring layer (711) is sleeved on the outer surface of the roller (71).

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