Edge folding device of double-needle lockstitch sewing machine

Abstract

The utility model relates to the technical field of edge folding devices, and discloses an edge folding device of a double-needle lockstitch sewing machine, which comprises a base, a lifting bending device arranged at the top of the base, and a pushing device arranged at the top of the base. The pushing device comprises a containing plate, a rectangular plate, a magnetic suction plate, a magnet plate, a limiting U-shaped frame, a limiting frame, a third hydraulic telescopic rod, a to-be-bent plate, a vertical frame plate block, an annular frame, a bottom frame, a bending length adjusting plate, a connecting rectangular block, a scale strip plate and a mounting bolt. The vertical frame plate block is fixedly connected to the top of the base. According to the edge folding device of the double-needle lockstitch sewing machine, the pushing device is arranged, a third hydraulic telescopic rod is started to push a to-be-bent plate to move rightwards, the required distance can be pushed according to the required bending length, the bending length can be conveniently adjusted, use is convenient, the specific pushing value can be conveniently known through a scale strip plate, precision is high, and the edge folding device is suitable for popularization and application. And the device can bend plates of various lengths, and the adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of folding devices, in particular to a folding device of a double-needle lockstitch sewing machine. Background Art

[0002] The double-needle sewing machine is a commonly used sewing machine with two needles that work in two or three synchronizations and can sew at corners to produce double threads in parallel. This is especially true when a flat machine is used for double-needle work in mass production. The double-needle sewing machine is highly efficient and the double threads are parallel, regular and beautiful.

[0003] The prior art discloses a hemming device for a double-needle lockstitch sewing machine with a publication number of CN217459820U, including a mounting plate, a support plate fixedly connected to the upper end of the mounting plate, a hemming plate fixedly connected to one side of the support plate, an "L"-shaped fixed plate connected to the upper end of the mounting plate through a translation mechanism, two fixed cylinders fixedly connected to the side wall of the fixed plate, the fixed cylinder runs through the fixed plate, a rotating shaft is rotatably connected in the fixed cylinder through a first bearing, a pressure roller is fixedly sleeved on the rotating shaft, the horizontal position of the hemming plate is located between the two pressure rollers, a transmission mechanism is arranged between the two rotating shafts, a positioning plate with a bent arrangement is fixedly connected to the side wall of the fixed plate, a drive motor is installed on the positioning plate, the drive motor passes through the positioning plate, and the output end of the drive motor is fixedly connected to one of the rotating shafts. The device of the present application eliminates the need for manual hemming, improves the hemming efficiency, and can well meet the needs.

[0004] The folding device of the above-mentioned flat-bed sewing machine can improve the folding efficiency by setting a mounting plate, a support plate, a folding plate, a fixed plate, a fixed cylinder, a rotating shaft, a pressure roller, a positioning plate and a driving motor. However, the above-mentioned device has no way to be adjusted according to the required bending length when folding, and can only bend plates of one length. The adaptability is low and the effect during use is not good, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a folding device for a double-needle lockstitch sewing machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a folding device of a double-needle lockstitch sewing machine, comprising a base, a lifting and bending device is arranged on the top of the base, and a pushing device is arranged on the top of the base.

[0007] The pushing device includes a placing plate, a rectangular plate, a magnetic plate, a magnet plate, a limiting U-shaped frame, a limiting frame, a third hydraulic telescopic rod, a plate to be bent, a frame plate, a ring frame, a base frame, a bending length adjustment plate, a connecting rectangular block, a scale strip and mounting bolts. The frame plate is fixedly connected to the top of the base, the placing plate is fixedly connected to the left side of the frame plate, the magnet plate is fixedly connected to the inside of the limiting U-shaped frame near the top, the magnetic plate is fixedly connected to the inside of the rectangular plate, the limiting frame is fixedly connected to the top of the rectangular plate, the third hydraulic telescopic rod is fixedly connected to the right side of the limiting frame, the plate to be bent is connected to the right side of the third hydraulic telescopic rod, the ring frame is fixedly connected to the top of the base frame, the scale strip is fixedly connected to the inner circle of the ring frame, the bending length adjustment plate is connected to the inner circle of the ring frame, and the connecting rectangular block is fixedly connected to the side of the ring frame.

[0008] Preferably, the lifting and bending device includes a support frame, a load-bearing hollow cylinder, a connecting frame, a connecting plate, a first hydraulic telescopic rod, an adjusting box, a surface connecting ring, a vertical plate, a second hydraulic telescopic rod, a vertical frame rod and a bending plate, the support frame is fixedly connected to the top of the base, the adjusting box is fixedly connected to the top of the base, the first hydraulic telescopic rod is fixedly connected to the top of the adjusting box, the connecting plate is fixedly connected to the top of the first hydraulic telescopic rod, the connecting frame is fixedly connected to the back side of the connecting plate, the connecting frame is slidably connected to the inside of the adjusting box, the load-bearing hollow cylinder is fixedly connected to the top of the connecting frame, the surface connecting ring is fixedly connected to the surface of the load-bearing hollow cylinder, the vertical plate is fixedly connected to the top of the surface connecting ring, the second hydraulic telescopic rod is fixedly connected to the left side of the vertical plate, the vertical frame rod is fixedly connected to the left side of the second hydraulic telescopic rod, and the bending plate is fixedly connected to the bottom of the vertical frame rod.

[0009] Preferably, a threaded hole is provided inside the adjusting bending length plate, a connecting screw hole with a hole diameter equal to that of the threaded hole is provided inside the connecting rectangular block, and the mounting bolt is threadedly connected to the inside of the threaded hole and the connecting screw hole.

[0010] Preferably, the limiting U-shaped frame is fixedly connected to the inside of the placement plate, and the rectangular plate is slidably connected to the inside of the limiting U-shaped frame.

[0011] Preferably, the plate to be bent is slidably connected to the inside of the vertical frame plate, and the bottom frame is fixedly connected to the top of the base. The third hydraulic telescopic rod is started to push the plate to be bent to the right. The required distance can be pushed according to the required bending length, and the bending length can be conveniently adjusted. It is easy to use, and the specific value of the displacement can be conveniently known by using the scale strip. It has high precision, can adjust the bending degree, and enhances the adaptability of the device.

[0012] Preferably, the top area of ​​the magnetic plate is equal to the bottom area of ​​the magnet plate, the magnetic plate is magnetically connected to the magnet plate, the rectangular plate slides inside the limiting U-shaped frame and is pushed inward until the top of the magnetic plate contacts the bottom of the magnet plate, and the two can be magnetically attracted together when in contact, and the rectangular plate, the top limiting frame and the third hydraulic telescopic rod are installed.

[0013] Preferably, a limiting slide groove is provided on the top of the load-bearing hollow cylinder, the width of the limiting slide groove is adapted to the width of the vertical frame rod, and the vertical frame rod is slidably connected to the inside of the load-bearing hollow cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The folding device of the double-needle lockstitch sewing machine is provided with a pushing device. The third hydraulic telescopic rod is started to push the plate to be bent to the right. The required distance can be pushed according to the required bending length. The bending length can be easily adjusted. It is easy to use. The scale strip is used to conveniently know the specific value of the push. The precision is high, so that the device can bend plates of various lengths with high adaptability.

[0016] 2. The folding device of the double-needle lockstitch sewing machine is provided with a pushing device to install a certain length of an adjustable bending length plate inside the ring frame. The length of the adjustable bending length plate is the width that the plate to be bent does not want to be bent. The adjustable bending length plate is installed using mounting bolts to adjust the required bending length and width.

[0017] 3. The folding device of the double-needle lockstitch sewing machine is provided with a lifting and bending device. The second hydraulic telescopic rod is started to drive the vertical frame rod to move to the left, and the bending plate is driven to the bottom of the plate to be bent and the left side of the bending plate is stopped when it contacts the vertical frame plate. Then the first hydraulic telescopic rod can be started to drive the connecting plate to move upward or downward for bending. The different moving distances of the first hydraulic telescopic rod result in different bending angles, so the bending process can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional front view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional top view of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 This is a schematic diagram of the overall three-dimensional side view structure of the utility model;

[0022] Figure 5For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. base; 2. lifting and bending device; 201. support frame; 202. bearing hollow cylinder; 203. connecting frame; 204. connecting plate; 205. first hydraulic telescopic rod; 206. adjustment box; 207. surface connecting ring; 208. vertical plate; 209. second hydraulic telescopic rod; 210. vertical frame rod; 211. bending plate; 3. pushing device; 301. placing plate; 302. rectangular plate; 303. magnetic plate; 304. magnet plate; 305. limiting U-shaped frame; 306. limiting frame; 307. third hydraulic telescopic rod; 308. plate to be bent; 309. vertical frame plate; 310. ring frame; 311. bottom frame; 312. plate for adjusting bending length; 313. connecting rectangular block; 314. scale strip plate; 315. mounting bolts. DETAILED DESCRIPTION

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

[0025] See also Figure 1-5 , the utility model provides the following technical solutions:

[0026] A folding device for a double-needle lockstitch sewing machine comprises a base 1, a lifting and bending device 2 is arranged on the top of the base 1, and a pushing device 3 is arranged on the top of the base 1.

[0027] The pushing device 3 includes a placing plate 301, a rectangular plate 302, a magnetic plate 303, a magnet plate 304, a limiting U-shaped frame 305, a limiting frame 306, a third hydraulic telescopic rod 307, a plate to be bent 308, a stand plate 309, a ring frame 310, a bottom frame 311, a plate 312 for adjusting the bending length, a connecting rectangular block 313, a scale strip 314 and a mounting bolt 315. The stand plate 309 is fixedly connected to the top of the base 1, the placing plate 301 is fixedly connected to the left side of the stand plate 309, and the magnet plate 304 is fixedly connected to the inside of the limiting U-shaped frame 305 near the top The magnetic plate 303 is fixedly connected to the inside of the rectangular plate 302, the limit frame 306 is fixedly connected to the top of the rectangular plate 302, the third hydraulic telescopic rod 307 is fixedly connected to the right side of the limit frame 306, the plate 308 to be bent is connected to the right side of the third hydraulic telescopic rod 307, the ring frame 310 is fixedly connected to the top of the bottom frame 311, the scale strip 314 is fixedly connected to the inner circle of the ring frame 310, the bending length adjustment plate 312 is connected to the inner circle of the ring frame 310, the connecting rectangular block 313 is fixedly connected to the side of the ring frame 310, and the bending length adjustment plate 312 is provided with a screw The inner part of the connecting rectangular block 313 is provided with a connecting screw hole with the same diameter as the threaded hole, the mounting bolt 315 is threadedly connected to the inner part of the threaded hole and the connecting screw hole, the limiting U-shaped frame 305 is fixedly connected to the inner part of the placing plate 301, the rectangular plate 302 is slidably connected to the inner part of the limiting U-shaped frame 305, the plate 308 to be bent is slidably connected to the inner part of the frame plate 309, the bottom frame 311 is fixedly connected to the top of the base 1, and the third hydraulic telescopic rod 307 is started to push the plate 308 to be bent to move to the right, and the required distance can be pushed according to the required bending length, which can be conveniently adjusted. The length of the section bending is easy to use, and the scale bar 314 is used to conveniently know the specific value of the displacement. It has high precision and can adjust the degree of bending to enhance the adaptability of the device. The top area of ​​the magnetic plate 303 is equal to the bottom area of ​​the magnet plate 304. The magnetic plate 303 is magnetically connected to the magnet plate 304. The rectangular plate 302 slides in line with the inner limit U-shaped frame 305 and pushes inward until the top of the magnetic plate 303 contacts the bottom of the magnet plate 304. The two can be magnetically adsorbed together when in contact, and the rectangular plate 302, the top limit frame 306 and the third hydraulic telescopic rod 307 are installed.

[0028] The lifting and bending device 2 includes a support frame 201, a load-bearing hollow cylinder 202, a connecting frame 203, a connecting plate 204, a first hydraulic telescopic rod 205, an adjustment box 206, a surface connecting ring 207, a vertical plate 208, a second hydraulic telescopic rod 209, a vertical frame rod 210 and a bending plate 211. The support frame 201 is fixedly connected to the top of the base 1, the adjustment box 206 is fixedly connected to the top of the base 1, the first hydraulic telescopic rod 205 is fixedly connected to the top of the adjustment box 206, the connecting plate 204 is fixedly connected to the top of the first hydraulic telescopic rod 205, the connecting frame 203 is fixedly connected to the back of the connecting plate 204, and the connecting frame 203 is slidably connected to the bottom of the connecting plate 204. It is connected to the inside of the adjustment box 206, the supporting hollow cylinder 202 is fixedly connected to the top of the connecting frame 203, the surface connecting ring 207 is fixedly connected to the surface of the supporting hollow cylinder 202, the vertical plate 208 is fixedly connected to the top of the surface connecting ring 207, the second hydraulic telescopic rod 209 is fixedly connected to the left side of the vertical plate 208, the vertical frame rod 210 is fixedly connected to the left side of the second hydraulic telescopic rod 209, the bending plate 211 is fixedly connected to the bottom of the vertical frame rod 210, and a limiting slide groove is opened on the top of the supporting hollow cylinder 202, the width of the limiting slide groove is adapted to the width of the vertical frame rod 210, and the vertical frame rod 210 is slidably connected to the inside of the supporting hollow cylinder 202.

[0029] When in use, the plate 308 to be bent is inserted into the rectangular groove inside the second hydraulic telescopic rod 209, and then the rectangular plate 302 can be installed, and the rectangular plate 302 is aligned with the inside of the limiting U-shaped frame 305 and then inserted, so that the rectangular plate 302 is close to the inside of the limiting U-shaped frame 305, slides and pushes inward until the top of the magnetic plate 303 contacts the bottom of the magnet plate 304, and the two can be magnetically adsorbed together when in contact, and the rectangular plate 302, the top limiting frame 306 and the third hydraulic telescopic rod 307 are installed, and the third hydraulic telescopic rod 307 is started to push the plate 308 to be bent to the right, and the required distance can be pushed according to the required bending length, and the bending length can be conveniently adjusted. It is easy to use, and the specific value of the displacement can be conveniently known by using the scale bar 314, and the precision is high, so that the device can bend plates of various lengths, and the adaptability is high. The length plate 312 and the connecting rectangular block 313 can adjust the width of the bending. When in use, a certain length of the adjusting bending length plate 312 can be installed inside the ring frame 310. The length of the adjusting bending length plate 312 is the width of the plate 308 to be bent that is not desired to be bent. The adjusting bending length plate 312 is installed using the mounting bolts 315, and the required bending length and width can be adjusted. A lifting and bending device 2 is provided on the top of the base 1. When in use, the second hydraulic telescopic rod 209 can be started to drive the frame rod 210 to move left, and the bending plate 211 can be driven to the bottom of the plate 308 to be bent and the left side of the bending plate 211 is stopped when it contacts the frame plate 309. Then, the first hydraulic telescopic rod 205 can be started to drive the connecting plate 204 to move upward or downward for bending. The different distances of the first hydraulic telescopic rod 205 lead to different bending angles, and the bending process can be completed.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding device for a double-needle lockstitch sewing machine, comprising a base (1), characterized in that: A lifting and bending device (2) is provided on the top of the base (1), and a pushing device (3) is provided on the top of the base (1); The pushing device (3) comprises a placement plate (301), a rectangular plate (302), a magnetic attraction plate (303), a magnet plate (304), a limiting U-shaped frame (305), a limiting frame (306), a third hydraulic telescopic rod (307), a plate to be bent (308), a stand plate (309), a ring frame (310), a bottom frame (311), a bending length adjustment plate (312), a connecting rectangular block (313), a scale plate (314) and a mounting bolt (315), wherein the stand plate (309) is fixedly connected to the top of the base (1), the placement plate (301) is fixedly connected to the left side of the stand plate (309), and the magnet plate (304) is fixedly connected to the limiting U-shaped frame ( The inner part of the rectangular plate (305) is close to the top, the magnetic plate (303) is fixedly connected to the inner part of the rectangular plate (302), the limiting frame (306) is fixedly connected to the top of the rectangular plate (302), the third hydraulic telescopic rod (307) is fixedly connected to the right side of the limiting frame (306), the plate to be bent (308) is connected to the right side of the third hydraulic telescopic rod (307), the ring frame (310) is fixedly connected to the top of the bottom frame (311), the scale strip (314) is fixedly connected to the inner circle of the ring frame (310), the bending length adjustment plate (312) is connected to the inner circle of the ring frame (310), and the connecting rectangular block (313) is fixedly connected to the side of the ring frame (310).

2. The hemming device of a double-needle lockstitch sewing machine according to claim 1, characterized in that: The lifting and bending device (2) comprises a support frame (201), a load-bearing hollow cylinder (202), a connecting frame (203), a connecting plate (204), a first hydraulic telescopic rod (205), an adjustment box (206), a surface connecting ring (207), a vertical plate (208), a second hydraulic telescopic rod (209), a vertical frame rod (210) and a bending plate (211), wherein the support frame (201) is fixedly connected to the top of the base (1), the adjustment box (206) is fixedly connected to the top of the base (1), the first hydraulic telescopic rod (205) is fixedly connected to the top of the adjustment box (206), and the connecting plate (204) is fixedly connected to the top of the first hydraulic telescopic rod (205). The connecting frame (203) is fixedly connected to the back side of the connecting plate (204), the connecting frame (203) is slidably connected to the inside of the adjusting box (206), the supporting hollow cylinder (202) is fixedly connected to the top of the connecting frame (203), the surface connecting ring (207) is fixedly connected to the surface of the supporting hollow cylinder (202), the vertical plate (208) is fixedly connected to the top of the surface connecting ring (207), the second hydraulic telescopic rod (209) is fixedly connected to the left side of the vertical plate (208), the vertical frame rod (210) is fixedly connected to the left side of the second hydraulic telescopic rod (209), and the bending plate (211) is fixedly connected to the bottom of the vertical frame rod (210).

3. The hemming device of a double-needle lockstitch sewing machine according to claim 1, characterized in that: The adjusting bending length plate (312) has a threaded hole inside, the connecting rectangular block (313) has a connecting screw hole with the same hole diameter as the threaded hole inside, and the mounting bolt (315) is threadedly connected to the threaded hole and the connecting screw hole.

4. The hemming device of a double-needle lockstitch sewing machine according to claim 1, characterized in that: The limiting U-shaped frame (305) is fixedly connected to the inside of the placement plate (301), and the rectangular plate (302) is slidably connected to the inside of the limiting U-shaped frame (305).

5. The hemming device of a double-needle lockstitch sewing machine according to claim 1, characterized in that: The plate member (308) to be bent is slidably connected to the interior of the stand plate (309), and the base frame (311) is fixedly connected to the top of the base (1).

6. The hemming device of a double-needle lockstitch sewing machine according to claim 1, characterized in that: The top area of ​​the magnetic attraction plate (303) is equal to the bottom area of ​​the magnet plate (304), and the magnetic attraction plate (303) is magnetically connected to the magnet plate (304).

7. The hemming device of a double-needle lockstitch sewing machine according to claim 2, characterized in that: A limiting sliding groove is provided on the top of the load-bearing hollow cylinder (202), the width of the limiting sliding groove is adapted to the width of the vertical frame rod (210), and the vertical frame rod (210) is slidably connected to the inside of the load-bearing hollow cylinder (202).

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