A woven bag sewing machine

Abstract

The utility model belongs to the technical field of woven bag sewing, specifically a woven bag sewing machine, comprising a shell, a cutting mechanism, a folding mechanism, a conveying mechanism and a sewing mechanism, wherein the cutting mechanism comprises a cutting frame, a cutting knife, a feeding roller and a first conveying roller; the folding mechanism comprises a first conveying belt, a second conveying roller, a first rotating roller, a second rotating roller, a third rotating roller and a limiting groove, the first conveying belt, the second conveying roller, the first rotating roller, the second rotating roller and the third rotating roller are rotatably connected to the shell, the shell is also connected with a limiting groove and a discharging groove, which are arranged at a position away from the second conveying roller at a tangent point between the first rotating roller and the second rotating roller; compared with the prior art, the utility model can achieve unattended automatic sewing, and manual labor only needs to put the raw material roll on the feeding roller, and subsequent folding, sewing and conveying are all automatically completed, thereby improving the production efficiency of woven bag sewing.

Description

Technical Field

[0001] The utility model relates to the technical field of woven bag sewing machines, in particular to a woven bag sewing machine. Background Art

[0002] Woven bag sewing machines are special equipment designed to meet the needs of efficient sewing of woven bags in industrial production. Woven bags are usually woven from plastic materials such as polypropylene (PP) or polyethylene (PE), which have a certain degree of firmness and wear resistance. Due to the characteristics of these materials, a sewing machine is required that can penetrate multiple layers of woven bag materials while maintaining the firmness and beauty of the stitching; sewing woven bags requires the selection of suitable stitches and wires to ensure the firmness and durability of the stitching. Usually, wear-resistant and tensile-resistant wires are selected to adapt to the pressure and friction that woven bags may be subjected to during transportation and storage; Woven bag sewing machines need to ensure that they can penetrate the multiple layers of thickness of woven bags.

[0003] With the improvement of industrial automation level, modern woven bag sewing machines are usually equipped with various automation functions, such as automatic thread trimming, automatic thread changing, automatic adjustment of thread tension, etc., to improve production efficiency and reduce operating costs.

[0004] Existing woven bag sewing machines usually require the finished woven bag roll to be cut first, and then the two pieces of material are manually sewn using a sewing machine. This method not only has high labor costs and low efficiency, but also occasionally safety accidents may occur during the operation of the operator. Therefore, it is necessary to invent an automatic sewing woven bag sewing machine. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and develops a woven bag sewing machine which can achieve unattended automatic sewing. Manual operations only need to place the raw material rolls on the unwinding roller, and the subsequent folding, sewing and conveying are all completed automatically, thereby improving the production efficiency of the woven bag sewing.

[0006] The technical solution to the technical problem solved by the utility model is as follows: a woven bag sewing machine comprises a shell, a cutting mechanism, a folding mechanism, a conveying mechanism and a sewing mechanism, wherein the cutting mechanism comprises a cutting frame, a cutting knife, a feeding roller and a first conveying roller, the cutting frame is connected to the shell, the cutting knife is slidably connected to the cutting frame, the feeding roller and the first conveying roller are rotatably connected to the cutting frame, and the first conveying roller is matched with a first driven roller in the vertical direction; the folding mechanism comprises a first conveying belt, a second conveying roller, a first rotating roller, a second rotating roller, a third rotating roller and a limiting groove, the first conveying belt is connected to the shell and matches with a feed tray, the second conveying roller is rotatably connected to the shell and is tangent to the feed tray, the first The rotating roller, the second rotating roller and the third rotating roller are rotatably connected to the shell, the first rotating roller is tangent to the second rotating roller, the upper part of the second rotating roller is tangent to the first rotating roller, and the lower part is tangent to the third rotating roller, the limiting groove is connected to the shell, and is set at a position away from the second conveying roller at the tangent point between the first rotating roller and the second rotating roller; the sewing mechanism includes a second conveyor belt, a sewing machine frame and an electric sewing machine, the second conveyor belt is located below the folding mechanism, the sewing machine frame is set at a position flush with the second conveyor belt, the electric sewing machine is symmetrically arranged on both sides of the sewing machine frame in the width direction, and a linear array of mounting holes is set on the sewing machine frame, and the electric sewing machine can change the distance between the two electric sewing machines by being installed in different mounting holes.

[0007] Preferably, a connecting block is provided on the cutting knife, the connecting block is connected to the output end of the cylinder, and the cylinder is installed on the cutting frame.

[0008] Preferably, a discharge chute is connected to the shell, and the discharge chute is arranged on a side away from the limiting groove at the tangent point between the second rotating roller and the third rotating roller.

[0009] Preferably, the discharge trough is provided with an array of slot holes, the shell is rotatably connected with a discharge roller, the discharge roller is provided with an array of cylindrical protrusions matching the slot holes on the discharge trough, and the discharge roller is symmetrically arranged above and below the slot holes.

[0010] Preferably, the second conveying roller is connected to a first gear, the first rotating roller is connected to a second gear, the second rotating roller is connected to a third gear, the third rotating roller is connected to a fourth gear, the first gear and the second gear are both meshed and connected to the transmission gear, the second gear is meshed and connected to the third gear, and the fourth gear is meshed and connected to the third gear.

[0011] Preferably, the first gear is connected to the output end of the second reducer, the discharging roller is connected to the output end of the second reducer via a belt, and the second reducer is connected to the housing via a flange.

[0012] Preferably, a limit baffle is provided on the limit groove, and the limit baffle is fixed or loosened by bolts.

[0013] Preferably, the feed tray is provided with an opening, and a second driven roller is rotatably connected to the shell, and the second driven roller is provided with a cylindrical protrusion at the opening of the feed tray, and the cylindrical protrusion is tangent to the second conveying roller.

[0014] Preferably, the first conveying roller is connected to the output end of a first reducer, and the first reducer is connected to the cutting frame via a flange.

[0015] Preferably, a slide groove is provided between the electric sewing machine on the sewing machine frame and the second conveyor belt, and a guide plate is slidably connected in the slide groove; and an electric cutting knife is provided on the side of the electric sewing machine on the sewing machine frame away from the second conveyor belt.

[0016] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0017] 1. The utility model provides a cutting mechanism, a folding mechanism and a sewing mechanism, which are integrated into one operation process and do not need to be performed in multiple steps, thereby improving production efficiency;

[0018] 2. By setting the cutting mechanism, the material roll can be automatically cut to the required length;

[0019] 3. By setting up a folding mechanism, the traditional method of sewing three sides of two pieces of woven bag materials is changed. It only needs to be folded in half and then sewn on two sides. This not only improves the sewing efficiency, but also the bottom is an integrated structure without needle and thread holes, which also improves the durability of the woven bag;

[0020] 4. By symmetrically setting the electric sewing machine, the conveyor belt can complete the sewing operation with only one conveying, directly producing the finished product, thus improving production efficiency;

[0021] 5. By arranging a slidable guide plate on the sewing machine frame, the woven bag raw materials conveyed by the second conveyor belt can be aligned with the working width of the sewing machine to avoid the woven bag being misaligned when entering the sewing machine;

[0022] 6. By setting an electric cutter behind the electric sewing machine, the thread will be automatically cut off after sewing is completed, without manual operation;

[0023] 7. The utility model only needs to manually fill the material rolls, and the rest is completed automatically, which is simple to operate and has low labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the utility model;

[0025] Figure 2 It is the overall structural diagram of the utility model;

[0026] Figure 3 for Figure 2 A partial enlarged view of area A

[0027] Figure 4 It is a right view of the utility model;

[0028] Figure 5 for Figure 4 Sectional view in the AA direction;

[0029] Figure 6 for Figure 4 Cross-sectional view in the BB direction;

[0030] Figure 7 for Figure 6 A partial enlarged view of the middle A area;

[0031] Figure 8 It is a top view of the utility model.

[0032] Wherein: 1. Shell; 2. Cutting frame; 21. Cutting knife; 22. Feeding roller; 23. First conveying roller; 24. First driven roller; 25. First reducer; 26. Connecting block; 27. Cylinder; 3. First conveying belt; 31. Feeding tray; 4. Second conveying roller; 41. Second driven roller; 42. First gear; 421. Transmission gear; 43. Second reducer; 5. First rotating roller; 51. Second gear; 6. Second rotating roller; 61. Third gear; 7. Third rotating roller; 71. Fourth gear; 8. Limiting groove; 81. Limiting baffle; 9. Discharging trough; 91. Discharging roller; 92. Belt; 10. Second conveying belt; 11. Sewing machine frame; 111. Mounting hole; 12. Electric sewing machine; 13. Guide plate; 131. Slide; 14. Electric cutting knife. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0034] Example 1

[0035] See also Figures 1 to 8A woven bag sewing machine comprises a shell 1, a cutting mechanism, a folding mechanism, a conveying mechanism and a sewing mechanism, wherein the cutting mechanism comprises a cutting frame 2, a cutting knife 21, a feeding roller 22 and a first conveying roller 23, wherein the cutting frame 2 is connected to the shell 1, the cutting knife 21 is slidably connected to the cutting frame 2, the feeding roller 22 and the first conveying roller 23 are rotatably connected to the cutting frame 2, and the first conveying roller 23 is vertically matched with a first driven roller 24; the folding mechanism comprises a first conveying belt 3, a second conveying roller 4, a first rotating roller 5, a second rotating roller 6, a third rotating roller 7 and a limiting groove 8, the first conveying belt 3 is connected to the shell 1 and matches with a feed tray 31, the second conveying roller 4 is rotatably connected to the shell 1 and is tangent to the feed tray 31, the first rotating roller 5, the second rotating roller 6 The first rotating roller 5 is tangent to the second rotating roller 6, the upper part of the second rotating roller 6 is tangent to the first rotating roller 5, and the lower part is tangent to the third rotating roller 7. The limiting groove 8 is connected to the housing 1 and is arranged at a position away from the second conveying roller 4 at the tangent point between the first rotating roller 5 and the second rotating roller 6; the sewing mechanism includes a second conveyor belt 10, a sewing machine frame 11 and an electric sewing machine 12, the second conveyor belt 10 is located below the folding mechanism, the sewing machine frame 11 is arranged at a position flush with the second conveyor belt 10, the electric sewing machine 12 is symmetrically arranged on both sides of the sewing machine frame 11 in the width direction, and a linear array of mounting holes 111 is arranged on the sewing machine frame 11, and the electric sewing machine 12 can change the spacing between the two electric sewing machines 12 by being installed in different mounting holes 111.

[0036] like Figures 1 to 3 As shown, a connecting block 26 is provided on the cutting blade 21 , and the connecting block 26 is connected to the output end of a cylinder 27 , and the cylinder 27 is installed on the cutting frame 2 .

[0037] like Figure 4 and Figure 6 As shown, a discharge chute 9 is connected to the housing 1 , and the discharge chute 9 is arranged at a side away from the limiting groove 8 at a tangent point between the second rotating roller 6 and the third rotating roller 7 .

[0038] As above Figure 3 , Figure 4 and Figure 6 As shown, the discharge trough 9 is provided with slot holes in an array, the shell 1 is rotatably connected with a discharge roller 91, the discharge roller 91 is provided with an array of cylindrical protrusions matching the slot holes on the discharge trough 9, and the discharge roller 91 is symmetrically arranged above and below the slot holes.

[0039] like Figure 4 and Figure 5As shown, the second conveying roller 4 is connected to the first gear 42, the first rotating roller 5 is connected to the second gear 51, the second rotating roller 6 is connected to the third gear 61, and the third rotating roller 7 is connected to the fourth gear 71. The first gear 42 and the second gear 51 are both meshed and connected with the transmission gear 421, the second gear 51 is meshed and connected with the third gear 61, and the fourth gear 71 is meshed and connected with the third gear 61.

[0040] like Figures 4 to 6 As shown, the first gear 42 is connected to the output end of the second reducer 43, the discharging roller 91 is connected to the output end of the second reducer 43 through a belt 92, and the second reducer 43 is connected to the housing 1 through a flange.

[0041] As above Figure 2 , Figure 7 and Figure 8 As shown, a limit baffle 81 is provided on the limit slot 8, and the limit baffle 81 is fixed or loosened by bolts.

[0042] like Figure 6 As shown, the feed tray 31 is provided with an opening, and a second driven roller 41 is rotatably connected to the shell 1 . The second driven roller 41 is provided with a cylindrical protrusion at the opening of the feed tray 31 , and the cylindrical protrusion is tangent to the second conveying roller 4 .

[0043] like Figures 1 to 6 As shown, the first conveying roller 23 is connected to the output end of the first reducer 25, and the first reducer 25 is connected to the cutting frame 2 through a flange.

[0044] like Figure 2 and Figure 8 As shown, a slide groove 131 is arranged between the electric sewing machine 12 on the sewing machine frame 11 and the second conveyor belt 10, and a guide plate 13 is slidably connected in the slide groove 131; an electric cutting knife 14 is arranged on the side of the electric sewing machine 12 on the sewing machine frame 11 away from the second conveyor belt 10.

[0045] Principle and operation process

[0046] The present invention uses a cutting mechanism, a folding mechanism and a sewing mechanism as a whole, which is an operation process. There is no need to perform the sewing work of the woven bag in multiple steps, thereby improving the production efficiency. The specific operation is as follows: first, the woven bag raw material roll is placed on the unwinding roller 22, the unwinding roller 22 is installed in place, the raw material is pulled out and placed between the first conveying roller 23 and the first driven roller 24, and then the spacing between the guide plates 13 and the spacing between the two electric sewing machines 12 are adjusted, and then the setting is started, the cylinder 27, the first reducer 25 and the second reducer 43 are started, and the cylinder 27 is supplied with air through the controller. An interval start time is set, and the time is determined according to the length of the required raw material. After the cutting is completed, the raw material is transported to the feed tray 31 via the first conveyor belt 3, and then driven by the second reducer 43, the first gear 42 rotates clockwise, and the second conveying roller 4 cooperates with the second driven roller 41 to send the raw material to the tangent point of the first rotating roller 5 and the second rotating roller 6, and the first gear 42 drives the transmission gear 421 to rotate counterclockwise, and the transmission gear 421 drives the second gear 51 to rotate clockwise, and at the same time, the second gear 51 drives the third gear 61 to rotate counterclockwise, and the first rotating roller 5 and the second The rotating roller 6 will produce a conveying effect in the direction of the limiting groove 8. At this time, the first rotating roller 5 and the second rotating roller 6 will convey the raw material to the limiting groove 8. According to the length of the raw material, the length after folding is determined, and the limiting baffle 81 is adjusted to a suitable position. When the raw material enters the limiting groove 8 and reaches the position of the limiting baffle 81, due to the continuous conveying effect of the first rotating roller 5 and the second rotating roller 6, the raw material will produce downward folds. At this time, the second gear 51 will drive the third gear 61 to rotate clockwise. At this time, the second rotating roller 6 and the third rotating roller 7 will produce a conveying effect toward the discharge trough 9. With the conveying of the second rotating roller 6 and the third rotating roller 7, the raw material is folded in half and enters the discharge trough 9. Due to the conveying effect of the discharge roller 91, the folded raw material will fall to the second conveyor belt 10. The second conveyor belt 10 conveys the raw material to the direction of the electric sewing machine 12. After reaching the sewing machine frame 11, it will first be guided by the guide plate 13, and the two sides of the raw material will enter the electric sewing machines 12 on both sides respectively. After sewing is completed, the electric cutter 14 completes the cutting operation to complete the sewing of a woven bag. Repeating the above operations can realize continuous automated operation, which greatly improves production efficiency.

[0047] Although the specific implementation methods of the utility model are described above in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. On the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A woven bag sewing machine, characterized in that: The invention comprises a housing (1), a cutting mechanism, a folding mechanism, a conveying mechanism and a sewing mechanism. The cutting mechanism comprises a cutting frame (2), a cutting knife (21), a feeding roller (22) and a first conveying roller (23). The cutting frame (2) is connected to the housing (1). The cutting knife (21) is slidably connected to the cutting frame (2). The feeding roller (22) and the first conveying roller (23) are rotatably connected to the cutting frame (2). The first conveying roller (23) is provided with a first driven roller (24) in a vertical direction. The folding mechanism comprises a first conveying belt (3), a second conveying roller (4), a first rotating roller (5), a second rotating roller (6), a third rotating roller (7) and a limiting groove (8). The first conveying belt (3) is connected to the housing (1) and is matched with a feeding tray (31). The second conveying roller (4) is rotatably connected to the housing (1) and is tangent to the feeding tray (31). The first rotating roller (5), the second rotating roller (6) and the third rotating roller (7) are tangent to the feeding tray (31). The three rotating rollers (7) are rotatably connected to the housing (1); the first rotating roller (5) is tangent to the second rotating roller (6); the upper part of the second rotating roller (6) is tangent to the first rotating roller (5) and the lower part is tangent to the third rotating roller (7); the limiting groove (8) is connected to the housing (1) and is arranged at a position away from the second conveying roller (4) at the tangent point between the first rotating roller (5) and the second rotating roller (6); the sewing mechanism comprises a second conveying belt (10), a sewing machine frame (11) and an electric sewing machine (12), the second conveyor belt (10) is located below the folding mechanism, the sewing machine frame (11) is arranged at a position flush with the second conveyor belt (10), the electric sewing machines (12) are symmetrically arranged on both sides of the sewing machine frame (11) in a width direction, and the sewing machine frame (11) is provided with mounting holes (111) in a linear array, and the electric sewing machines (12) can change the distance between the two electric sewing machines (12) by being installed in different mounting holes (111).

2. A woven bag sewing machine according to claim 1, characterized in that: The cutting blade (21) is provided with a connecting block (26), the connecting block (26) being connected to the output end of a cylinder (27), and the cylinder (27) being mounted on the cutting machine frame (2).

3. A woven bag sewing machine according to claim 1, characterized in that: The housing (1) is connected to a discharge chute (9), which is arranged on a side away from the limiting groove (8) at a point where the second rotating roller (6) and the third rotating roller (7) are tangent to each other.

4. A woven bag sewing machine according to claim 3, characterized in that: The discharge trough (9) is provided with slot holes in an array, the housing (1) is rotatably connected with a discharge roller (91), the discharge roller (91) is provided with an array of cylindrical protrusions matching the slot holes in the discharge trough (9), and the discharge roller (91) is symmetrically arranged above and below the slot holes.

5. A woven bag sewing machine according to claim 4, characterized in that: The second conveying roller (4) is connected to a first gear (42), the first rotating roller (5) is connected to a second gear (51), the second rotating roller (6) is connected to a third gear (61), the third rotating roller (7) is connected to a fourth gear (71), the first gear (42) and the second gear (51) are both meshedly connected to a transmission gear (421), the second gear (51) is meshedly connected to the third gear (61), and the fourth gear (71) is meshedly connected to the third gear (61).

6. A woven bag sewing machine according to claim 5, characterized in that: The first gear (42) is connected to the output end of the second reducer (43), the discharge roller (91) is connected to the output end of the second reducer (43) via a belt (92), and the second reducer (43) is connected to the housing (1) via a flange.

7. A woven bag sewing machine according to claim 1, characterized in that: A limit baffle (81) is provided on the limit groove (8), and the limit baffle (81) is fixed or loosened by bolts.

8. The woven bag sewing machine according to claim 1, characterized in that: The feed tray (31) is provided with an opening, and a second driven roller (41) is rotatably connected to the shell (1). The second driven roller (41) is provided with a cylindrical protrusion at the opening of the feed tray (31), and the cylindrical protrusion is tangent to the second conveying roller (4).

9. The woven bag sewing machine according to claim 1, characterized in that: The first conveying roller (23) is connected to the output end of a first reducer (25), and the first reducer (25) is connected to the cutting machine frame (2) via a flange.

10. The woven bag sewing machine according to claim 1, characterized in that: A slide groove (131) is provided between the electric sewing machine (12) on the sewing machine frame (11) and the second conveyor belt (10), and a guide plate (13) is slidably connected in the slide groove (131); and an electric cutting knife (14) is provided on the side of the electric sewing machine (12) on the sewing machine frame (11) away from the second conveyor belt (10).

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