Double-needle turnover lockstitch sewing machine

Abstract

The utility model discloses a double-needle turnover lockstitch sewing machine, and belongs to the technical field of sewing machine equipment. According to the double-needle lockstitch sewing machine, the use area of the supporting table in the sewing process is increased by adding the folding table top on the basis of an original double-needle lockstitch sewing machine; after the lockstitch sewing machine is used, the turnover table top can be put down so that the lockstitch sewing machine can be moved conveniently, and the lockstitch sewing machine can pass through narrow areas such as a doorway more easily; the gear is matched with the two racks, when the rack at the bottom of the table is pulled, the other rack slides in the opposite direction, and by means of the arrangement, the two turnover table plates can be jacked up through one-time pulling; a stop block is arranged on the sliding rail, so that the rack can be prevented from falling off due to excessive movement; the rolling wheels are arranged to reduce friction force when the table top is jacked up, and jacking is easier; due to the arrangement of the handle, the handle can be pulled more conveniently; the second racks are connected through the connecting rods, the racks can be synchronously pulled, and uniform stress can be achieved when the table top is jacked up; the table legs are telescopic, so that the height of the tabletop can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing machine equipment technical field, concretely relates to a double needle folding flat bed sewing machine. BACKGROUND

[0002] The double needle automatic thread cutting flat bed sewing machine is developed on the basis of the traditional sewing machine through technical innovation and improvement and is a high-efficiency sewing equipment. With the rapid development of the textile, leather and garment industries, the requirements for the sewing equipment are higher and higher, not only the sewing efficiency needs to be improved, but also the sewing quality needs to be ensured, so the double needle automatic thread cutting flat bed sewing machine emerges as the times require.

[0003] In the prior art, the research on the double needle automatic thread cutting flat bed sewing machine is mostly related to the sewing precision and speed of the flat bed sewing machine, for example, the patent CN216404741U discloses a double needle flat bed sewing machine, but the scheme has the problems that the flat bed sewing machine is not easy to move and the desktop use area is not adjustable.

[0004] The utility model attempts to solve the problem that the flat bed sewing machine is too large to move by providing a double needle folding flat bed sewing machine. CONTENT OF THE UTILITY MODEL

[0005] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides a double needle folding flat bed sewing machine, which has the advantage of being convenient to move.

[0006] To achieve the above object, the utility model provides a double needle folding flat bed sewing machine, which comprises a double needle flat bed sewing machine, a desktop, a table leg, a hinge, a sliding rail, a first rack, a second rack and a gear.

[0007] The desktop is composed of a first folding desktop, a second folding desktop and a fixed desktop, the first folding desktop and the second folding desktop are connected to the edges of the fixed desktop through the hinges respectively, the gear is rotatably arranged at the bottom of the fixed desktop, the sliding rail is fixed on the two sides of the gear, the first rack is slidably arranged on the sliding rail, the first rack is matched with the gear, the length of the sliding rail is shorter than the width of the fixed desktop, and the length of the first rack is shorter than the width of the fixed desktop.

[0008] As a preferred mode of the utility model, the top end of the sliding rail is further provided with a stop block, and the stop block can prevent the first rack from falling off when the displacement distance exceeds the length of the sliding rail.

[0009] As a preferred mode of the utility model, the top end of the first rack is further provided with a roller, and the diameter of the roller is greater than the thickness of the first rack, so that when the top end of the first rack slides to the second folding desktop, the roller first contacts the second folding desktop.

[0010] As a preferred mode of the utility model, the second rack top end is equipped with a handle, the handle size is matched with the second rack top end.

[0011] As a preferred mode of the utility model, the first rack, the second rack, the gear and the slide rail are all equipped with two groups, the two groups of second racks are connected through connecting rods, so that the two groups of second racks can slide synchronously.

[0012] As a preferred mode of the utility model, the table leg is composed of an upper table leg and a lower table leg, the upper table leg can be sleeved on the lower table leg, so that the table leg as a whole can be telescopic, the lower table leg is provided with a bushing, a bolt can be inserted into the bushing, so that the upper table leg can be fixed at the position after being pulled up.

[0013] As a preferred mode of the utility model, the second rack top end is provided with a bolt, the first folding table bottom is provided with a bushing, the bolt can be inserted into the bushing when the second rack is pulled to the first folding table bottom end.

[0014] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the beneficial effects including:

[0015] The utility model increases the folding table top based on the original double-needle flat sewing machine, which has the following advantages: 1. the use area of the support table during sewing is increased; 2. the folding table top can be put down after use, which facilitates the movement of the flat sewing machine and makes it easier to pass through relatively narrow areas such as doorways; 3. the gear and the two racks are used in cooperation, when the rack at the table bottom is pulled, the other rack slides in the opposite direction, which can lift the two folding table plates by pulling once; 4. the stopper on the slide rail can prevent the rack from falling off due to excessive movement; 5. the roller can reduce the friction when lifting the table top, which makes it easier to lift; 6. the handle makes it more convenient to pull the handle; 7. the two second racks are connected through the connecting rod, so that they can be pulled synchronously and bear force evenly when lifting the table top; 8. the telescopic table leg can facilitate the adjustment of the table top height; 9. the universal wheel at the bottom of the table leg facilitates the movement of the flat sewing machine on the ground. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of the double-needle folding flat sewing machine of the utility model;

[0017] Figure 2 It is a side view of the double-needle folding flat sewing machine of the utility model;

[0018] Figure 3 It is a top view of the double-needle folding flat sewing machine of the utility model;

[0019] Figure 4The utility model discloses a double needle folding flat sewing machine table bottom schematic diagram.

[0020] Figure 5 The utility model discloses a double needle folding flat sewing machine A place schematic diagram.

[0021] Figure 6 The utility model discloses a double needle folding flat sewing machine block schematic diagram.

[0022] Figure 7 The utility model discloses a double needle folding flat sewing machine bolt schematic diagram.

[0023] In all the drawings, same reference signs represent same technical features, specifically:

[0024] Double needle flat sewing machine 100;Table top 200;First folding table top 210;Second folding table top 220;Fixed table top 230;Hinge 240;Slide rail 250;First rack 260;Second rack 270;Gear 280;Table leg 300;Jack 310;Universal wheel 330;Bolt 320;Block 251;Roller 261;Handle 271;Connecting rod 272;Bolt 273;Jack 211. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] The terms used herein are only for describing the specific embodiments, and are not intended to limit the utility model. The terms "include", "contain" and the like used herein indicate the existence of the described features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0027] All the terms used herein (including technical and scientific terms) have the meanings generally understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having meanings consistent with the context of the specification, and should not be interpreted in an idealized or overly stereotyped manner.

[0028] In the embodiments, by Figures 1-6 Given, Figure 1 The utility model discloses a double needle folding flat sewing machine front schematic diagram, can see the position relation of double needle flat sewing machine, table top and table leg in the drawing. Figure 2This is a side view of the double-needle folding flat sewing machine of this utility model. As can be seen from the figure, the table legs are divided into upper table legs and lower table legs. The upper table legs are fitted onto the lower table legs to achieve telescopic movement. The lower table legs have holes in which bolts can be inserted to fix the upper table legs after they are raised. Figure 3 This is a schematic diagram of the top of the double-needle folding flat sewing machine of this utility model. As can be seen from the figure, the two folding tabletops are connected to the fixed tabletop by hinges. Figure 4 This is a schematic diagram of the table bottom of the double-needle folding flat sewing machine of this utility model. As can be seen from the figure, the combination of gears, racks and slide rails can achieve the lifting of the two folding tabletops by pulling the second rack. Figure 5 This is a schematic diagram of point A of the double-needle folding flat sewing machine of this utility model. It can be seen from the figure that the side of the roller is higher than the upper surface of the rack. When the rack extends to the folding table, the roller contacts the folding table first. Figure 6 This is a schematic diagram of the stop block of the double-needle folding flat sewing machine of this utility model. It can be seen that the rack will not slip when it slides to the stop block. Figure 7 This is a schematic diagram of the pin of this utility model. It can be seen that the pin can be inserted when the second rack is pulled to the insertion hole.

[0029] This utility model provides a double-needle folding flat sewing machine, including: a double-needle flat sewing machine 100, a tabletop 200, table legs 300, hinges 240, a slide rail 250, a first rack 260, a second rack 270, and a gear 280;

[0030] The desktop 200 consists of a first folding desktop 210, a second folding desktop 220, and a fixed desktop 230. The first folding desktop 210 and the second folding desktop 220 are respectively connected to the edge of the fixed desktop 230 via hinges 240. The gear 280 is rotatably disposed at the bottom of the fixed desktop 230. The slide rail 250 is fixed on both sides of the gear 280. The first rack 260 is slidably disposed on the slide rail 250 and matches the gear 280. The length of the slide rail 250 is shorter than the width of the fixed desktop 230, and the length of the first rack 260 is shorter than the width of the fixed desktop 230.

[0031] In use, the operator pulls the second rack outwards, lifting the first folding tabletop. Simultaneously, the second rack drives the gear to rotate, which in turn drives the first rack to slide. The second rack then lifts the second folding tabletop. When the second rack is pulled parallel to the first folding tabletop, the first folding tabletop is fully lifted. Similarly, the second folding tabletop is fully lifted by the first rack. At this point, due to the weight of the first folding tabletop, a large frictional force is generated between the second rack and the first folding tabletop, as well as between the second rack and the slide rail. As a result, the first folding tabletop remains stable and horizontal, and similarly, the second folding tabletop also remains stable and horizontal.

[0032] When the second rack is pulled out or pushed back to the bottom end, the rack can be out of the range of the slide rail and fall off, and the stopper arranged at the top end of the slide rail can prevent the rack from being displaced excessively. As a preferred mode of the utility model, the top end of the slide rail 250 is further provided with a stopper 251, and the stopper 251 can prevent the first rack 260 from being displaced beyond the length of the slide rail 250 and falling off.

[0033] The roller is arranged at the top end of the first rack, and the roller first contacts the folding table top before the first rack directly contacts the folding table top, because the rolling friction force between the roller and the folding table top is smaller than the sliding friction force, the folding table top can be lifted more easily. As a preferred mode of the utility model, the top end of the first rack 260 is further provided with a roller 261, and the diameter of the roller 261 is greater than the thickness of the first rack 260, so that when the top end of the first rack 260 is slid forward to the second folding table top 220, the roller 261 first contacts the second folding table top 220.

[0034] The handle is arranged at the top end of the second rack, and the second rack can be pulled out more conveniently. As a preferred mode of the utility model, the top end of the second rack 270 is provided with a handle 271, and the size of the handle 271 is adapted to the top end of the second rack 270.

[0035] The first rack, the second rack, the gear and the slide rail are arranged as two groups, so that the water pipe sleeve can be lifted and lowered more stably. As a preferred mode of the utility model, the first rack 260, the second rack 270, the gear 280 and the slide rail 250 are arranged as two groups, and the two groups of second racks 270 are connected through connecting rods 272, so that the two groups of second racks 270 can be slid synchronously.

[0036] The table top is arranged as a telescopic type, so that the double-needle flat sewing machine can be adjusted to an appropriate height according to the height of the user. As a preferred mode of the utility model, the table leg 300 is composed of an upper table leg 340 and a lower table leg 350, the upper table leg 340 can be arranged on the lower table leg 350, so that the table leg 300 as a whole is telescopic, the lower table leg 350 is provided with an insertion hole 310, and a bolt 320 can be inserted into the insertion hole 310, so that after the upper table leg 340 is pulled up, it can be fixed at a position.

[0037] The universal wheel is arranged, so that the utility model can be moved on the ground conveniently. As a preferred mode of the utility model, the bottom of the table leg 300 is provided with a universal wheel 330.

[0038] The second rack is provided with a latch, which is inserted into a hole when the second rack is moved to the hole, thereby fixing the rack and preventing it from sliding forward and backward, and the first and second folding table tops are also prevented from rotating.

[0039] In summary, the utility model discloses a double-needle flat sewing machine with folding table tops, which is improved on the basis of the original double-needle flat sewing machine in the following ways: 1. The use area of the support table during sewing is increased; 2. The folding table tops can be folded down after use, which facilitates the movement of the flat sewing machine and makes it easier to pass through narrow areas such as doorways; 3. The use of gears and two racks enables the other rack to slide in the opposite direction when the rack at the bottom of the table is pulled, which allows the two folding table tops to be lifted at the same time by pulling once; 4. The setting of a stopper on the slide rail prevents the rack from falling off due to over-movement; 5. The setting of rollers reduces friction when the table tops are lifted, making it easier to lift them; 6. The setting of handles makes it easier to pull the handles; 7. The connection of the second racks by connecting rods enables them to be pulled synchronously and to bear force evenly when the table tops are lifted; 8. The telescopic table legs facilitate the adjustment of the height of the table tops; and 9. The setting of universal wheels at the bottom of the table legs facilitates the movement of the flat sewing machine on the ground.

[0040] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A double needle overcast lockstitch machine characterized by, Include: Double needle flat sewing machine (100), desktop (200), table leg (300), hinge (240), slide rail (250), first rack (260), second rack (270), gear (280); The desktop (200) is composed of a first folding desktop (210), a second folding desktop (220) and a fixed desktop (230). The first folding desktop (210) and the second folding desktop (220) are connected at the edges of the fixed desktop (230) through the hinge (240). The gear (280) is rotatably arranged at the bottom of the fixed desktop (230). The slide rail (250) is fixed on both sides of the gear (280). The first rack (260) is slidably arranged on the slide rail (250). The first rack (260) matches the gear (280). The length of the slide rail (250) is shorter than the width of the fixed desktop (230). The length of the first rack (260) is shorter than the width of the fixed desktop (230).

2. A double needle fold-over flat bed sewing machine as claimed in claim 1 wherein, The top end of the slide rail (250) is also provided with a stop block (251), which can prevent the first rack (260) from being displaced beyond the length of the slide rail (250) and falling off.

3. A twin needle overcasting machine as claimed in claim 2 wherein, The top end of the first rack (260) is also provided with a roller (261), and the diameter of the roller (261) is greater than the thickness of the first rack (260), so that when the top end of the first rack (260) slides forward to the second folding desktop (220), the roller (261) first contacts the second folding desktop (220).

4. A double needle fold over lock according to claim 1 wherein, The top end of the second rack (270) is provided with a handle (271), and the size of the handle (271) is matched with the top end of the second rack (270).

5. A double needle fold over lock according to claim 1 wherein, The first rack (260), the second rack (270), the gear (280) and the slide rail (250) are provided with two groups. The two groups of second racks (270) are connected through a connecting rod (272), so that the two groups of second racks (270) can slide synchronously.

6. A double needle fold over lock according to claim 1 wherein, The table leg (300) is composed of an upper table leg (340) and a lower table leg (350). The upper table leg (340) can be sleeved on the lower table leg (350), so that the table leg (300) as a whole can be telescopic. The lower table leg (350) is provided with a insertion hole (310), and a bolt (320) can be inserted into the insertion hole (310), so that the upper table leg (340) can be fixed in place after being pulled up.

7. A twin needle overcasting machine as claimed in claim 6 wherein, The bottom of the table leg (300) is provided with a universal wheel (330).

8. A double needle fold over lock according to claim 1 wherein, The top end of the second rack (270) is provided with a latch (273), and the bottom of the first folding desktop (210) is provided with an insertion hole (211). When the second rack (270) is pulled to the bottom end of the first folding desktop (210), the latch (273) can be inserted into the insertion hole (211).

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