Blanket overlock sewing machine

Abstract

The utility model discloses a blanket overlock machine which comprises a protective outer cover, a lower needle mechanism and an upper thread mechanism. The middle part of the right end of the upper surface of the protective outer cover is fixedly connected with a mounting frame, and the upper surface of the mounting frame is rotationally connected with bobbin supporting frames which are bilaterally symmetrical; the lower needle mechanism comprises a lower needle outer cover and a sliding supporting frame, the lower needle outer cover is fixedly connected to the front side face of the left end of the protective outer cover, the sliding supporting frame is slidably connected to the interior of the lower needle outer cover, a connecting frame is fixedly connected to the lower end of the inner wall of the sliding supporting frame, and an overlock needle is fixedly connected to the lower end of the connecting frame; the thread feeding mechanism comprises a rotating supporting shaft and a gear, the rotating supporting shaft is rotationally connected to the lower side of the left end of the rear wall of the front end of the protective outer cover, the blanket overlock machine is higher in needle feeding efficiency and needle feeding penetrating power, the blanket can be overlocked conveniently, meanwhile, the thread feeding efficiency is higher, the blanket overlock efficiency is higher, and two-thread overlock is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of blanket production, in particular to a blanket edge locking machine. Background Art

[0002] Blankets are a commonly used bedding that has a warming function and is thinner than quilts. In the reproduction process of blankets, the blankets need to be edge-locked to prevent them from being untied. Therefore, blanket edge-locking machines are needed:

[0003] Some traditional blanket overlocking machines sew the edges of blankets using multiple overlocking threads;

[0004] The existing blanket overlocking machine has the following problems, such as the blanket is thick, the overlocking needle of the overlocking machine is difficult to penetrate the blanket, and the overlocking efficiency is low. For this reason, we propose a blanket overlocking machine. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a blanket edge locking machine, which can improve the edge locking efficiency. At the same time, the edge locking needle has a strong downward penetration distance and penetration force, can penetrate the blanket, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blanket overlocking machine, comprising a protective cover, a lower needle mechanism and an upper thread mechanism;

[0007] Protective outer cover: A mounting frame is fixedly connected to the middle of the right end of the upper surface of the protective outer cover, and a left-right symmetrical bobbin support frame is rotatably connected to the upper surface of the mounting frame;

[0008] Needle lowering mechanism: it comprises a needle lowering outer cover and a sliding support frame, wherein the needle lowering outer cover is fixedly connected to the left front side of the protective outer cover, the interior of the needle lowering outer cover is slidably connected to the sliding support frame, the lower end of the inner wall of the sliding support frame is fixedly connected to a connecting frame, and the lower end of the connecting frame is fixedly connected to a lock stitch;

[0009] Thread-feeding mechanism: It includes a rotating support shaft and a gear. The rotating support shaft is rotatably connected to the lower left end of the front rear wall of the protective outer cover. The rear end outer surface of the rotating support shaft is fixedly sleeved with a gear. The front end of the outer surface of the rotating support shaft is fixedly connected to a rotating frame. The upper end of the outer surface of the rotating frame is fixedly connected to a thread-feeding frame. The needle-feeding efficiency and needle-feeding penetration force are stronger, which is convenient for locking the edge of the blanket. At the same time, the thread-feeding efficiency is also higher, which makes the blanket edge locking efficiency higher and the two-line edge locking more reliable.

[0010] Furthermore, a control switch group is fixedly connected to the upper end of the left side surface of the protective cover, and the input end of the control switch group is electrically connected to the external power supply to control the operation of the equipment.

[0011] Furthermore, the needle lowering mechanism also includes a locking frame, a support plate and a rotating column. The locking frame is fixedly connected to the middle part of the front side of the outer surface of the lower needle outer cover, the rear side of the locking frame is fixedly connected to the support plate, the outer surface of the support plate and the interior of the sliding opening opened on the front side of the lower needle outer cover form a guide groove, the lower end of the front side of the sliding support frame is fixedly connected to the rotating column, the outer surface of the rotating column is slidably connected to the interior of the guide groove, and the guide groove can be used to limit the needle lowering trajectory.

[0012] Furthermore, the needle lowering mechanism also includes a rotating shaft, a fixed block, a push rod and a bevel rod. The middle part of the rear end of the needle lowering outer cover is rotatably connected to the rotating shaft, the front end of the rotating shaft is fixedly connected to the fixed block, the upper and lower surfaces of the fixed block are fixedly connected to left and right symmetrical push rods, the middle part of the front end of the inner wall of the sliding support frame is fixedly connected to the bevel rod, and the left end of the bevel rod is located between the outer surfaces of the two upper push rods, so that the needle can be lowered quickly.

[0013] Furthermore, a motor 1 is fixedly connected to the left side of the front wall at the rear end of the protective cover, and the front end of the output shaft of the motor 1 passes through the front rear wall of the protective cover, and the front end of the output shaft of the motor 1 is fixedly connected to the rear end of the rotating shaft to provide power for the lower needle.

[0014] Furthermore, the online mechanism also includes an installation support frame, a slide rail and a rack. The installation support frame is fixedly connected to the left side of the rear end front wall of the protective outer cover, the lower surface of the installation support frame is fixedly connected to the slide rail, the inside of the slide rail is slidably connected to the rack, the rack is meshingly connected to the gear, and an avoidance opening is opened on the lower side of the rear end left wall of the protective outer cover, the left end of the rack is located inside the avoidance opening, and the rotating frame can be swung left and right by moving the rack left and right.

[0015] Furthermore, the online mechanism also includes a rotating connecting frame, a connecting rod, a crank and a second motor. The second motor is fixedly connected to the right side of the rear wall of the rear end of the protective cover. The front end of the output shaft of the second motor is fixedly connected to the crank. The right end of the crank is rotatably connected to the connecting rod. The rotating connecting frame is fixedly connected to the right side surface of the rack. The left end of the connecting rod is rotatably connected to the right end of the rotating connecting frame. The input end of the second motor is electrically connected to the output end of the control switch group to provide power for online operation.

[0016] Furthermore, the right end of the front side of the protective cover is fixedly connected to a guide rail that is symmetrical up and down, a sliding door is slidably connected inside the guide rail, and a handle is fixedly connected to the right end of the front side of the sliding door, which makes wire changing and threading more labor-saving.

[0017] Furthermore, a left-right symmetrical avoidance hole is opened at the front end of the upper surface of the protective cover, a wire rack 1 is fixedly connected to the left side of the front rear wall of the protective cover, and a wire rack 2 is fixedly connected to the right side of the front rear wall of the protective cover, so that the locking wire can be more neat when used.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. When the motor is started, it drives the shaft to rotate, the rotation of the shaft drives the fixed block to rotate, the rotation of the fixed block drives the push rod to rotate, the rotation of the push rod drives the inclined rod to rotate, the rotation of the inclined rod drives the sliding support frame to rotate, the rotation of the sliding support frame drives the rotating column to slide inside the guide groove, so that the sliding support frame moves up and down quickly, the sliding support frame moves up and down quickly and drives the connecting frame to move up and down, the connecting frame moves up and down and drives the locking needle to move up and down, so that the locking needle can be quickly inserted into the blanket and then rise, thereby improving the locking efficiency of the blanket. At the same time, the fixed installation can prevent the locking needle from shaking, and the penetration force is stronger, and it can penetrate thicker fabrics such as blankets.

[0020] 2. Motor 2 is started to drive the crank to rotate. The rotation of the crank applies a thrust along its own direction to the connecting rod. Under the action of the thrust, the connecting rod pushes the rack to slide left and right inside the slide rail. The left and right movement of the rack drives the gear to rotate left and right, thereby making the rotating frame swing left and right. The left and right swing of the rotating frame drives the upper wire rack to swing left and right, thereby making the edge locking line inside the upper wire rack move forward and backward, thereby making the edge locking of the blanket more efficient and more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the front side of the utility model;

[0023] Figure 3 This is a rear cross-sectional structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the utility model from a rear view;

[0025] Figure 5 It is a partial cross-sectional structural schematic diagram of the needle lowering mechanism of the utility model.

[0026] In the figure: 1 protective cover, 2 mounting frame, 3 bobbin support frame, 4 avoidance hole, 5 guide rail, 6 sliding door, 7 control switch group, 8 needle lowering mechanism, 81 needle lowering cover, 82 sliding support frame, 83 locking frame, 84 support plate, 85 rotating shaft, 86 fixing block, 87 push rod, 88 rotating column, 89 inclined rod, 9 threading mechanism, 91 mounting support frame, 92 slide rail, 93 rack, 94 rotating support shaft, 95 gear, 96 rotating connecting frame, 97 connecting rod, 98 crank, 99 motor 2, 10 overlock needle, 11 rotating frame, 12 threading frame, 13 handle, 14 wire frame 1, 15 wire frame 2, 16 avoidance hole, 17 motor 1, 18 connecting frame. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-5 , This embodiment provides a technical solution: a blanket overlocking machine, comprising a protective cover 1, a lower needle mechanism 8 and an upper thread mechanism 9;

[0029] Protective cover 1: A mounting frame 2 is fixedly connected to the middle of the right end of its upper surface, and a left-right symmetrical bobbin support frame 3 is rotatably connected to the upper surface of the mounting frame 2. A control switch group 7 is fixedly connected to the upper end of the left side surface of the protective cover 1, and the input end of the control switch group 7 is electrically connected to the external power supply. A motor 17 is fixedly connected to the left side of the front wall of the rear end of the protective cover 1, and the front end of the output shaft of the motor 17 penetrates the front rear wall of the protective cover 1, and the front end of the output shaft of the motor 17 is fixedly connected to the rear end of the rotating shaft 85. A guide rail 5 symmetrical in upper and lower directions is fixedly connected to the right end of the front side of the protective cover 1, and a sliding door 6 is slidably connected between the inside of the guide rail 5, and a handle 13 is fixedly connected to the right end of the front side of the sliding door 6. A left-right symmetrical avoidance hole 4 is opened on the front end of the upper surface of the protective cover 1, a wire rack 14 is fixedly connected to the left side of the front rear wall of the protective cover 1, and a wire rack 2 15 is fixedly connected to the right side of the front rear wall of the protective cover 1;

[0030] The lower needle mechanism 8 includes a lower needle cover 81 and a sliding support frame 82. The lower needle cover 81 is fixedly connected to the left front side of the protective cover 1. The lower needle cover 81 is slidably connected to the sliding support frame 82. The lower end of the inner wall of the sliding support frame 82 is fixedly connected to the connecting frame 18. The lower end of the connecting frame 18 is fixedly connected to the locking needle 10. The lower needle mechanism 8 also includes a locking frame 83, a support plate 84 and a rotating column 88. The locking frame 83 is fixedly connected to the middle part of the front side of the outer surface of the lower needle cover 81. The rear side of the locking frame 83 is fixedly connected to a support plate 84, and the outer surface of the support plate 84 and the inner part of the sliding opening opened on the front side of the lower needle outer cover 81 form a guide groove. The lower end of the front side of the sliding support frame 82 is fixedly connected to a rotating column 88, and the outer surface of the rotating column 88 is slidably connected to the inner part of the guide groove. The lower needle mechanism 8 also includes a rotating shaft 85, a fixed block 86, a push rod 87 and an inclined rod 89. The middle part of the rear end of the lower needle outer cover 81 is rotatably connected to the rotating shaft 85, and the front end of the rotating shaft 85 is fixedly connected to a fixed The fixed block 86 has push rods 87 symmetrically connected to its upper and lower surfaces. The middle part of the inner wall front end of the sliding support frame 82 is fixedly connected with an inclined rod 89. The left end of the inclined rod 89 is located between the outer surfaces of the two push rods 87 on the upper side. The motor 17 is started to drive the rotating shaft 85 to rotate. The rotating shaft 85 drives the fixed block 86 to rotate. The fixed block 86 drives the push rod 87 to rotate. The push rod 87 drives the inclined rod 89 to rotate. The inclined rod 89 drives the sliding support frame 82 to rotate. The sliding support frame 82 drives the rotating column 88 to slide inside the guide groove, so that the sliding support frame 82 can move up and down quickly. The sliding support frame 82 moves up and down quickly and drives the connecting frame 18 to move up and down. The connecting frame 18 moves up and down and drives the edge locking needle 10 to move up and down, so that the edge locking needle 10 can be quickly inserted into the blanket and then rise, thereby improving the working efficiency. At the same time, the fixed installation can prevent the edge locking needle 10 from shaking, and the penetration force is stronger, which can penetrate thicker fabrics such as blankets.

[0031] The thread-on mechanism 9 includes a rotating support shaft 94 and a gear 95. The rotating support shaft 94 is rotatably connected to the lower left side of the rear wall of the front end of the protective cover 1. The outer surface of the rear end of the rotating support shaft 94 is fixedly sleeved with a gear 95. The front end of the outer surface of the rotating support shaft 94 is fixedly connected to a rotating frame 11. The upper end of the outer surface of the rotating frame 11 is fixedly connected to an thread-on frame 12. The thread-on mechanism 9 also includes a mounting support frame 91, a slide rail 92 and a rack 93. The mounting support frame 91 is fixedly connected to the left side of the rear end front wall of the protective cover 1. The lower surface of the mounting support frame 91 is fixedly connected to the slide rail 92. The inside of the slide rail 92 is slidably connected to the rack 93. The rack 93 is meshed with the gear 95. The lower side of the left wall of the rear end of the protective cover 1 is provided with an avoidance opening 16. The left end of the rack 93 is located inside the avoidance opening 16. The thread-on mechanism 9 also includes a rotating connecting frame 96, a connecting rod 97, a crank 98 and a motor 99 , Motor 2 99 is fixedly connected to the right side of the rear wall of the rear end of the protective outer cover 1, and the front end of the output shaft of motor 2 99 is fixedly connected with a crank 98, and the right end of the crank 98 is rotatably connected with a connecting rod 97, and the rotating connecting frame 96 is fixedly connected to the right side of the rack 93, and the left end of the connecting rod 97 is rotatably connected to the right end of the rotating connecting frame 96. The input end of motor 2 99 is electrically connected to the output end of the control switch group 7, and motor 2 99 starts to drive crank 98 to rotate. The rotation of crank 98 applies a thrust along its own direction to connecting rod 97. Under the action of the thrust, connecting rod 97 pushes rack 93 to slide left and right inside slide rail 92, and the left and right movement of rack 93 drives gear 95 to rotate left and right, so that the rotating frame 11 swings left and right, and the left and right swing of the rotating frame 11 drives the upper wire frame 12 to swing left and right, so that the edge locking line passed through the upper wire frame 12 moves back and forth, so that the edge locking efficiency is higher and the edge locking is more reliable.

[0032] The working principle of the blanket edge locking machine provided by the utility model is as follows: during the blanket edge locking process, the staff places the blanket on the edge locking table, and then the staff starts the motor 17 and the motor 2 99 at the same time by adjusting the control switch group 7, the motor 17 starts to drive the rotating shaft 85 to rotate, the rotating shaft 85 rotates to drive the fixed block 86 to rotate, the fixed block 86 rotates to drive the push rod 87 to rotate, the push rod 87 rotates to drive the inclined rod 89 to rotate, the inclined rod 89 rotates to drive the sliding support frame 82 to rotate, the sliding support frame 82 rotates to drive the rotating column 88 to slide inside the guide groove, so that the sliding support frame 82 moves up and down quickly, the sliding support frame 82 moves up and down quickly to drive the connecting frame 18 to move up and down, the connecting frame 18 moves up and down to drive the edge locking needle 10 to move up and down, so that the edge locking needle 10 can be quickly inserted into the blanket and then rise, thereby improving work efficiency, and at the same time the fixed installation can avoid edge locking. The needle 10 shakes, and the motor 2 99 starts to drive the crank 98 to rotate. The rotation of the crank 98 applies a thrust in its own direction to the connecting rod 97. Under the action of the thrust, the connecting rod 97 pushes the rack 93 to slide left and right inside the slide rail 92. The rack 93 moves left and right, driving the gear 95 to rotate left and right, so that the rotating frame 11 swings left and right, and the rotating frame 11 swings left and right to drive the upper thread frame 12 to swing left and right, so that the sewing thread passed through the upper thread frame 12 moves back and forth, so that the sewing efficiency is higher and the sewing is more secure. When the sewing needle 10 moves downward, it drives the sewing thread to enter the interior of the blanket until the sewing needle 10 passes through the blanket. At the same time, the rotating frame 11 swings to the right, driving the upper thread frame 12 to swing to the right, driving another sewing thread to move to the right, and then the sewing needle 10 drives the sewing thread upward, so that the two sewing threads are knotted under the blanket. At the same time, the staff continues to push the blanket forward and then continues to sewing.

[0033] It is worth noting that the motor 2 99 and the motor 1 17 disclosed in the above embodiments can both be CV400W vertical small AC motors, and the control switch group 7 is provided with control buttons corresponding to the motor 2 99 and the motor 1 17 and used to control their switches.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Blanket overlocking machine, characterized by: It comprises a protective outer cover (1), a needle lowering mechanism (8) and a thread upper mechanism (9); The protective cover (1) has a mounting frame (2) fixedly connected to the middle of the right end of its upper surface, and a left-right symmetrical bobbin support frame (3) is rotatably connected to the upper surface of the mounting frame (2); The needle lowering mechanism (8) comprises a needle lowering outer cover (81) and a sliding support frame (82), wherein the needle lowering outer cover (81) is fixedly connected to the left front side surface of the protective outer cover (1), the interior of the needle lowering outer cover (81) is slidably connected to the sliding support frame (82), the lower end of the inner wall of the sliding support frame (82) is fixedly connected to a connecting frame (18), and the lower end of the connecting frame (18) is fixedly connected to a lock stitch needle (10); The thread-up mechanism (9) comprises a rotating support shaft (94) and a gear (95), wherein the rotating support shaft (94) is rotatably connected to the lower left side of the front rear wall of the protective outer cover (1), the rear end outer surface of the rotating support shaft (94) is fixedly sleeved with a gear (95), the front end of the outer surface of the rotating support shaft (94) is fixedly connected to a rotating frame (11), and the upper end of the outer surface of the rotating frame (11) is fixedly connected to a thread-up frame (12).

2. The blanket edge-locking machine according to claim 1, characterized in that: A control switch group (7) is fixedly connected to the upper end of the left side surface of the protective outer cover (1), and an input end of the control switch group (7) is electrically connected to an external power supply.

3. The blanket edge-locking machine according to claim 2, characterized in that: The lower needle mechanism (8) also includes a locking frame (83), a support plate (84) and a rotating column (88), wherein the locking frame (83) is fixedly connected to the middle part of the front side of the outer surface of the lower needle outer cover (81), the rear side of the locking frame (83) is fixedly connected to the support plate (84), the outer surface of the support plate (84) and the interior of the sliding opening provided on the front side of the lower needle outer cover (81) form a guide groove, the lower end of the front side of the sliding support frame (82) is fixedly connected to the rotating column (88), and the outer surface of the rotating column (88) is slidably connected to the interior of the guide groove.

4. The blanket edge-locking machine according to claim 3, characterized in that: The needle lowering mechanism (8) further comprises a rotating shaft (85), a fixed block (86), a push rod (87) and an inclined rod (89); the middle portion of the rear end of the needle lowering outer cover (81) is rotatably connected to the rotating shaft (85); the front end of the rotating shaft (85) is fixedly connected to the fixed block (86); the upper and lower surfaces of the fixed block (86) are both fixedly connected to push rods (87) that are symmetrical on the left and right; the middle portion of the front end of the inner wall of the sliding support frame (82) is fixedly connected to the inclined rod (89); the left end of the inclined rod (89) is located between the outer surfaces of the two push rods (87) on the upper side.

5. The blanket edge-locking machine according to claim 4, characterized in that: A motor 1 (17) is fixedly connected to the left side of the front wall at the rear end of the protective cover (1); the front end of the output shaft of the motor 1 (17) penetrates the front rear wall of the protective cover (1); and the front end of the output shaft of the motor 1 (17) is fixedly connected to the rear end of the rotating shaft (85).

6. The blanket edge-locking machine according to claim 2, characterized in that: The thread-up mechanism (9) further comprises a mounting support frame (91), a slide rail (92) and a rack (93); the mounting support frame (91) is fixedly connected to the left side of the front wall at the rear end of the protective cover (1); the lower surface of the mounting support frame (91) is fixedly connected to the slide rail (92); the interior of the slide rail (92) is slidably connected to the rack (93); the rack (93) is meshingly connected to the gear (95); a clearance opening (16) is provided on the lower side of the left wall at the rear end of the protective cover (1); and the left end of the rack (93) is located inside the clearance opening (16).

7. The blanket edge-locking machine according to claim 6, characterized in that: The thread-up mechanism (9) further comprises a rotating connecting frame (96), a connecting rod (97), a crank (98) and a second motor (99); the second motor (99) is fixedly connected to the right side of the rear wall of the rear end of the protective cover (1); the front end of the output shaft of the second motor (99) is fixedly connected to the crank (98); the right end of the crank (98) is rotatably connected to the connecting rod (97); the rotating connecting frame (96) is fixedly connected to the right side surface of the rack (93); the left end of the connecting rod (97) is rotatably connected to the right end of the rotating connecting frame (96); and the input end of the second motor (99) is electrically connected to the output end of the control switch group (7).

8. The blanket edge-locking machine according to claim 6, characterized in that: A guide rail (5) symmetrical in upper and lower directions is fixedly connected to the right end of the front side of the protective cover (1), a sliding door (6) is slidably connected inside the guide rail (5), and a handle (13) is fixedly connected to the right end of the front side of the sliding door (6).

9. The blanket edge-locking machine according to claim 1, characterized in that: The front end of the upper surface of the protective outer cover (1) is provided with a left-right symmetrical avoidance hole (4), the left side of the front rear wall of the protective outer cover (1) is fixedly connected to a first wire rack (14), and the right side of the front rear wall of the protective outer cover (1) is fixedly connected to a second wire rack (15).

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