Edge folding mechanism of sewing machine

Abstract

The utility model discloses an edge folding mechanism of a sewing machine. The edge folding mechanism comprises a rack and an edge pressing unit, a guide flanging plate is arranged in the middle of the front end of the rack; the edge pressing unit comprises a supporting roller, a sliding block, a pressing roller, a first guide column and a first spring, the supporting roller is rotationally connected to the lower left end of the rack through a bearing, the sliding block is slidably connected to the interior of a first rectangular hole in the upper left end of the rack, the pressing roller is rotationally connected to the middle of the sliding block through a bearing, the pressing roller is located above the supporting roller, and the first guide column is arranged on the upper surface of the sliding block; the upper end of the first guide column extends out of the upper surface of the rack, the outer arc face of the first guide column is movably sleeved with a first spring, the first spring is located between the sliding block and the upper side wall of the first rectangular hole, a control switch is arranged in the middle of the rear side wall of the rack, and the input end of the control switch is electrically connected with an external power source. And the use convenience of the sewing machine is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ton bag container bag production, in particular to a folding mechanism for a sewing machine. Background Art

[0002] With the rapid development of the global logistics industry, the demand for efficient and environmentally friendly packaging solutions is also growing. Ton bags, as a new type of packaging, have the advantages of high efficiency, environmental protection, and safety, and are gradually being favored by the logistics industry. Ton bags are a packaging container used to collect and transport bulk goods. They are measured in tons and are usually made of high-strength polyester fiber materials. During the production process, sewing machines are used to sew ton bags. Existing sewing machines generally lack folding mechanisms. When sewing, it is generally necessary to manually fold the bag body and then push the bag body to move to achieve sewing by the sewing machine. The cost of use is low, but the labor burden of manual folding is large, which affects the convenience of use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a folding mechanism for a sewing machine, which automatically pulls the folded edge and transports it, greatly improving the convenience of using the sewing machine and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewing machine folding mechanism, comprising a frame and a press unit;

[0005] Frame: A guide folding plate is provided in the middle of its front end;

[0006] The edge pressing unit includes a supporting roller, a slider, a pressure roller, a guide column and a spring. The supporting roller is rotatably connected to the lower left end of the frame through a bearing. The slider is slidably connected to the inside of a rectangular hole at the upper left end of the frame. The middle part of the slider is rotatably connected to the pressure roller through a bearing. The pressure roller is located above the supporting roller. A guide column is provided on the upper surface of the slider. The upper end of the guide column extends out of the upper surface of the frame. A spring is movably sleeved on the outer arc surface of the guide column. The spring is located between the slider and the upper side wall of the rectangular hole. During use, the bag body can be pulled by the power of the motor, and then the bag body is driven to gradually fold the edges under the action of the guide folding plate, and then it is transported to the sewing machine for sewing. The folding edges are automatically pulled and transported, which greatly improves the convenience of using the sewing machine.

[0007] Furthermore, a control switch is provided in the middle of the rear side wall of the frame, and the input end of the control switch is electrically connected to an external power supply to facilitate the control of the electrical appliance.

[0008] Furthermore, the edge pressing unit also includes a gear 1, which is respectively arranged at the rear ends of the supporting roller and the pressing roller, and the two gears are meshed and connected to facilitate the synchronous driving of the supporting roller and the pressing roller.

[0009] Furthermore, the edge pressing unit also includes a motor and a synchronous pulley. The motor is arranged at the rear end of the frame. Synchronous pulleys are provided on the rear end of the support roller and the output shaft of the motor. The two synchronous pulleys are connected through a synchronous belt drive. The input end of the motor is electrically connected to the output end of the control switch to facilitate the driving of the support roller.

[0010] Furthermore, the lower right end of the frame is rotatably connected to a flattening roller via a bearing, a moving seat is slidably connected inside a rectangular hole 2 at the upper right end of the frame, and a flattening roller 2 is rotatably connected to the middle part of the moving seat via a bearing. A guide column 2 is provided on the upper surface of the moving seat, and the upper end of the guide column 2 extends out of the upper surface of the frame. A spring 2 is movably sleeved on the outer arc surface of the guide column 2, and the spring 2 is located between the moving seat and the upper side wall of the rectangular hole 2. Gear 2 is provided at the rear ends of the flattening roller 1 and the flattening roller 2, and the two gears 2 are meshingly connected to avoid the deviation of the ton bag and improve the folding quality.

[0011] Furthermore, a protective shell is provided on the rear side of the frame, and gear 2, gear 1 and the synchronous pulley are all located inside the protective shell, providing protection for the internal components.

[0012] Furthermore, the outer arc surfaces at the front ends of the support roller, the pressure roller, the first flattening roller and the second flattening roller are all provided with a rubber layer to increase the friction between the roller body and the ton bag.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the folding mechanism of the sewing machine has the following advantages:

[0014] Adjust the control switch, the motor starts, the output shaft of the motor drives the support roller to rotate counterclockwise through the synchronous pulley and the synchronous belt, the support roller drives the pressure roller to rotate clockwise through two gears, the support roller and the pressure roller drive the bag body to move left through the rubber layer, the bag body moves left along the guide folding plate, flattening roller one and flattening roller two, the rear end of the guide folding plate is gradually bent from right to left, and then the bag body is gradually turned up and folded under the left and right of the guide folding plate, and then the support roller and the pressure roller extrude and shape the folded bag body, and convey it to the sewing machine for sewing. During use, the bag body can be pulled by the power of the motor, and then the bag body is driven to gradually fold under the action of the guide folding plate, and then conveyed to the sewing machine for sewing, and the automatic folding and conveying greatly improves the convenience of using the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the edge pressing unit of the utility model.

[0017] In the figure: 1 frame, 2 guide folding plate, 3 pressing unit, 31 support roller, 32 slider, 33 pressing roller, 34 guide column 1, 35 spring 1, 36 gear 1, 37 motor, 38 synchronous pulley, 4 control switch, 5 flattening roller 1, 6 moving seat, 7 flattening roller 2, 8 guide column 2, 9 spring 2, 10 gear 2, 11 protective shell, 12 rubber layer. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-2 ,This embodiment provides a technical solution: a sewing machine folding mechanism, including a frame 1 and a press unit 3;

[0020] Frame 1: A guide folding plate 2 is provided in the middle of its front end, and the bag body is moved to the left along the guide folding plate 2, and the rear end of the guide folding plate 2 is gradually bent from right to left, and then the bag body is gradually turned up and folded under the left and right sides of the guide folding plate 2. The frame 1 is installed on the front side of the sewing machine, and a control switch 4 is provided in the middle of the rear side wall of the frame 1. The input end of the control switch 4 is electrically connected to an external power supply. The lower right end of the frame 1 is rotatably connected to a flattening roller 5 through a bearing, and a moving seat 6 is slidably connected inside the rectangular hole 2 at the upper right end of the frame 1. The middle part of the moving seat 6 is rotatably connected to a flattening roller 2 7 through a bearing, and the ton bag collection The bag body of the bag passes through between the flattening roller 1 5 and the flattening roller 2 7. The upper surface of the movable seat 6 is provided with a guide column 2 8. The upper end of the guide column 2 8 extends out of the upper surface of the frame 1. The outer arc surface of the guide column 2 8 is movably sleeved with a spring 2 9. The spring 2 9 is located between the movable seat 6 and the upper side wall of the rectangular hole 2. The spring 2 9 provides downward pressure to the flattening roller 2 7 through the movable seat 6 to ensure the flat state of the bag body. The rear ends of the flattening roller 1 5 and the flattening roller 2 7 are both provided with a gear 2 10. The two gears 2 10 are meshed and connected. The gear 2 10 ensures that the flattening roller 1 5 and the flattening roller 2 7 rotate synchronously and in opposite directions.

[0021] The edge pressing unit 3 includes a support roller 31, a slider 32, a pressure roller 33, a guide column 34 and a spring 35. The support roller 31 is rotatably connected to the lower left end of the frame 1 through a bearing. The slider 32 is slidably connected to the inside of a rectangular hole 1 at the upper left end of the frame 1. The middle part of the slider 32 is rotatably connected to the pressure roller 33 through a bearing. The pressure roller 33 is located above the support roller 31 and passes between the support roller 31 and the pressure roller 33. The support roller 31 and the pressure roller 33 extrude and shape the bag body after folding, and then convey it to The sewing machine is used for sewing. A guide column 34 is provided on the upper surface of the slider 32. The upper end of the guide column 34 extends out of the upper surface of the frame 1. A spring 35 is movably sleeved on the outer arc surface of the guide column 34. The guide column 34 provides a guide support for the spring 35. The spring 35 is located between the slider 32 and the upper side wall of the rectangular hole 1. The spring 35 provides downward pressure to the pressure roller 33 through the slider 32. The edge pressing unit 3 also includes a gear 36, which is respectively arranged on the support roller 31 and the pressure roller 33. 3, two gears 36 are meshed and connected, the edge pressing unit 3 also includes a motor 37 and a synchronous pulley 38, the motor 37 is arranged at the rear end of the frame 1, the rear end of the support roller 31 and the output shaft of the motor 37 are both provided with a synchronous pulley 38, the two synchronous pulleys 38 are connected through a synchronous belt transmission, the input end of the motor 37 is electrically connected to the output end of the control switch 4, the motor 37 is running, the output shaft of the motor 37 drives the support roller 31 to rotate counterclockwise through the synchronous pulley 38 and the synchronous belt, and the support roller 31 drives the pressure roller 33 to rotate clockwise through two gears 1 36. A protective shell 11 is provided on the rear side of the frame 1. Gear 2 10, gear 1 36 and synchronous pulley 38 are all located inside the protective shell 11. The protective shell 11 provides protection for the internal components. The outer arc surfaces at the front ends of the support roller 31, the pressure roller 33, the flattening roller 1 5 and the flattening roller 2 7 are all provided with a rubber layer 12. The rubber layer 12 increases the friction between the bag body and the flattening roller 1 5, the flattening roller 2 7, the support roller 31 and the pressure roller 33.

[0022] The working principle of the folding mechanism of a sewing machine provided by the utility model is as follows: before use, the frame 1 is installed to the front side of the sewing machine, and when working, the bag body of the ton bag container bag passes between the flattening roller 1 5 and the flattening roller 2 7, and the bag body is moved to the left along the guide folding plate 2, and passes between the support roller 31 and the pressure roller 33. The rubber layer 12 increases the friction between the bag body and the flattening roller 1 5, the flattening roller 2 7, the support roller 31 and the pressure roller 33. The spring 1 35 provides downward pressure to the pressure roller 33 through the slider 32, and the spring 2 9 provides downward pressure to the flattening roller 2 7 through the moving seat 6, thereby facilitating the compression of the bag body and ensuring the flat state of the bag body. After the control switch 4 is adjusted, the motor 37 starts to operate. The output shaft of the motor 37 drives the support roller 31 to rotate counterclockwise through the synchronous pulley 38 and the synchronous belt. The support roller 31 drives the pressure roller 33 to rotate clockwise through two gears 1 36. The support roller 31 and the pressure roller 33 drive the bag body to move left through the rubber layer 12. The bag body moves left along the guide folding plate 2, the flattening roller 1 5 and the flattening roller 2 7. The rear end of the guide folding plate 2 is gradually bent from right to left, and then the bag body is gradually turned up and folded under the left and right sides of the guide folding plate 2. Then the support roller 31 and the pressure roller 33 extrude and shape the folded bag body and convey it to the sewing machine for sewing.

[0023] It is worth noting that the motor 37 disclosed in the above embodiment can be freely configured according to the actual application scenario. The motor 37 can select a speed regulating motor of model 5IK120RGU-CF. The control switch 4 is provided with a switch button corresponding to the motor 37 for controlling its switching operation.

[0024] 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. A sewing machine folding mechanism, Features: It comprises a frame (1) and a pressure unit (3); The frame (1) has a guide folding plate (2) at the middle of its front end; The edge pressing unit (3) comprises a supporting roller (31), a slider (32), a pressure roller (33), a guide column (34) and a spring (35), wherein the supporting roller (31) is rotatably connected to the lower left end of the frame (1) via a bearing, the slider (32) is slidably connected to the inside of a rectangular hole (3) at the upper left end of the frame (1), the middle part of the slider (32) is rotatably connected to the pressure roller (33) via a bearing, the pressure roller (33) is located above the supporting roller (31), the upper surface of the slider (32) is provided with a guide column (34), the upper end of the guide column (34) extends out of the upper surface of the frame (1), the outer arc surface of the guide column (34) is movably sleeved with a spring (35), and the spring (35) is located between the slider (32) and the upper side wall of the rectangular hole (3).

2. A sewing machine folding mechanism according to claim 1, Features: A control switch (4) is provided in the middle of the rear side wall of the frame (1), and an input end of the control switch (4) is electrically connected to an external power supply.

3. A sewing machine folding mechanism according to claim 1, Features: The edge pressing unit (3) further comprises a gear one (36), wherein the gear one (36) is respectively arranged at the rear ends of the support roller (31) and the pressing roller (33), and the two gears one (36) are meshedly connected.

4. A sewing machine folding mechanism according to claim 2, Features: The edge pressing unit (3) further comprises a motor (37) and a synchronous pulley (38); the motor (37) is arranged at the rear end of the frame (1); the rear end of the support roller (31) and the output shaft of the motor (37) are both provided with a synchronous pulley (38); the two synchronous pulleys (38) are connected via a synchronous belt transmission; the input end of the motor (37) is electrically connected to the output end of the control switch (4).

5. A sewing machine folding mechanism according to claim 4, Features: The lower right end of the frame (1) is rotatably connected to a flattening roller (5) via a bearing, a moving seat (6) is slidably connected inside a rectangular hole (2) at the upper right end of the frame (1), a middle part of the moving seat (6) is rotatably connected to a flattening roller (7) via a bearing, a guide column (8) is provided on the upper surface of the moving seat (6), the upper end of the guide column (8) extends out of the upper surface of the frame (1), a spring (9) is movably sleeved on the outer arc surface of the guide column (8), the spring (9) is located between the moving seat (6) and the upper side wall of the rectangular hole (2), and a gear (10) is provided at the rear ends of the flattening roller (5) and the flattening roller (7), and the two gears (10) are meshed and connected.

6. A sewing machine folding mechanism according to claim 5, Features: A protective shell (11) is provided on the rear side of the frame (1), and gear 2 (10), gear 1 (36) and the synchronous pulley (38) are all located inside the protective shell (11).

7. A sewing machine folding mechanism according to claim 5, Features: The outer arc surfaces at the front ends of the support roller (31), the pressure roller (33), the first flattening roller (5) and the second flattening roller (7) are all provided with a rubber layer (12).

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