A fully automatic mesh bag lockstitch forming machine

Abstract

The present invention discloses a fully automatic mesh bag lock-stitching forming machine, which relates to the technical field of woven bag processing. The machine has the advantages of folding the woven bag mouth twice, not requiring manual folding, and improving processing efficiency. The key points of its technical solution are: it comprises an operating table and a sewing machine located in the middle position of the upper surface of the operating table, the upper surface of the operating table is provided with two assembly plates which are arranged opposite to each other and are respectively located on both sides of the sewing machine, two ear seats are fixed on the upper surface of each assembly plate, a long axis which is horizontally arranged and used to support the mesh bag is rotatably connected in each two adjacent ear seats, the mesh bag sleeve is arranged outside the long axis, and a restraining belt is provided on the outer shell of the mesh bag to limit the folding position of the mesh bag, and two initial folding components are provided on the upper surface of the operating table, which are respectively located on the sides of the long axis and push the mesh bag mouth to fold.

Description

Technical Field

[0001] The invention relates to the technical field of woven bag processing, in particular to a full-automatic mesh bag lock-seam forming machine. Background Art

[0002] Mesh woven bags are a common plastic product, widely used in the packaging of vegetables, fruits, rice, flour, grain, oil and other foods, as well as the packaging and transportation of other items such as toys and daily necessities. They have the characteristics of good air permeability, durability, light weight and low price.

[0003] The material of mesh woven bags is plastic filaments, commonly used plastic filaments include polypropylene and polyethylene. These plastic filaments are usually processed through chemical processes and can have certain waterproof and anti-corrosion functions to ensure the quality of the bags.

[0004] The weaving method of woven bags is to weave plastic silk into a mesh-shaped mesh cloth, then cut the mesh cloth into pieces of the required size, and assemble the cut mesh cloth pieces according to the shape of the bag by sewing or hot melting. Due to the production process requirements, the assembled mesh woven bag needs to be folded inward at the bag opening to increase the durability of the woven bag and the consistency of the bag opening.

[0005] At present, mesh woven bags are basically opened manually, and then the two inner folds of the bag opening are completed manually. The consistency of the folds is also aligned by eye, and then the folded bag opening is tightened by a sewing machine.

[0006] This process is completed by manual intervention throughout the process, which can easily lead to uneven quality of the folded edges of the finished packaging woven bags and low finished product yields. At the same time, the operator's skill level and mood have a great impact on the quality of the product, which can easily lead to uneven width of the folded edges of the woven bags and poor aesthetics. Summary of the Invention

[0007] In view of the above technical deficiencies, the purpose of the present invention is to provide a fully automatic mesh bag lock-seam forming machine, which has the advantages of folding the woven bag mouth twice, requiring no manpower to fold, and improving processing efficiency.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] The present invention provides a fully automatic mesh bag lockstitch forming machine, comprising an operating table and a sewing machine located in the middle of the upper surface of the operating table, the upper surface of the operating table is provided with two assembly plates arranged opposite to each other and respectively located on both sides of the sewing machine, two ear seats are fixed to the upper surface of each assembly plate, and a long axis horizontally arranged and used to support the mesh bag is rotatably connected in every two adjacent ear seats, the mesh bag is arranged outside the long axis, and the outer shell of the mesh bag is provided with a restraining belt for limiting the folding position of the mesh bag, and the upper surface of the operating table is provided with two initial folding components respectively located beside the long axis and pushing the bag mouth of the mesh bag to fold.

[0010] By adopting the above technical solution, the mesh bag is arranged outside the two long axes, and the mesh bag is supported by the long axes. A restraint belt is arranged near the folding position of the mesh bag to limit the folding position of the mesh bag, so as to facilitate the folding of the mesh bag mouth. The mesh bag mouth is folded by the action of the initial folding component, and the mesh bag after the mouth is folded is sealed by the action of the sewing machine. No manual folding is required, thereby improving the processing efficiency of the mesh bag, and the folding width of the mesh bag mouth is consistent, thereby improving the aesthetics.

[0011] Preferably, the initial folding assembly includes an arc-shaped plate that is sleeved outside the long axis and adapted to the size of the long axis. The circumferential outer wall of the arc-shaped plate is integrally formed with a mounting plate. A folding cylinder is provided next to the long axis, and the extended end of the folding cylinder is fixed to the mounting plate.

[0012] Preferably, four connecting guide rails are fixed to the upper surface of the operating table, and connecting sliders are slidably connected to the four connecting guide rails. Connecting plates are fixed on the side of several connecting sliders facing away from the connecting guide rails, and the side of the connecting plate facing away from the connecting slider is fixedly connected to the folding cylinder. A connecting cylinder is fixed on the operating table for driving the connecting plate to slide along the direction of the connecting guide rails.

[0013] Preferably, a column is fixed on the upper surface of the operating table, a U-shaped plate is fixed on the side of the column away from the operating table, and both upper and lower sides of the U-shaped plate are provided with final folding components for the folded net bag opening to be folded again.

[0014] Preferably, the final folding assembly includes a base plate fixed on a U-shaped plate, the upper surface of the base plate is integrally formed with an outer plate and an inner plate located inside the outer plate, a C-shaped groove is formed between the outer plate and the inner plate, the outer plate is integrally formed with a guide plate on the side facing the sewing machine, the guide plate is inclined, and the base plate and the arc-shaped plate are alternately arranged.

[0015] Preferably, the bottom plate is provided with an adjustment component for adjusting the folding width of the mesh bag opening.

[0016] Preferably, the adjustment assembly includes a through hole provided on the outer sleeve, a square plate is slidably connected in the through hole, both ends of the square plate pass through the outer sleeve through the through hole, one end of the square plate passing through the outer sleeve is integrally formed with a clamping plate with a C-shaped cross-section, the lower surface of the clamping plate is in conflict with the upper surface of the base plate, the clamping plate is clamped into the inner sleeve, and the other end of the square plate passing through the outer sleeve is provided with a waist-shaped groove, and a circular hole is provided on the base plate, which is located directly below the waist-shaped groove and is adapted to the waist-shaped groove, and the base plate and the square plate are fixedly connected by bolts passing through the waist-shaped groove and the circular hole.

[0017] Preferably, the upper surface of the sewing machine and the upper surface of the operating table are respectively provided with clamping components for limiting the middle position of the net bag.

[0018] Preferably, the clamping assembly includes a support seat, a clamping cylinder is fixed on the side of the support seat facing the mesh bag, and an I-shaped pressure plate for clamping the mesh bag is fixed to the extended end of the clamping cylinder.

[0019] Preferably, a driving motor for driving the adjacent long shafts to rotate is fixed on one of the assembly plates, synchronous wheels are coaxially fixed to the outside of the two long shafts, and synchronous belts meshing with the synchronous wheels are sleeved on the outside of the two synchronous wheels. An operating column is fixed on the other assembly plate, and the operating column rotates toward one side of the synchronous belt and is connected to a tensioning wheel meshing with the synchronous belt, and the synchronous belt is sleeved outside the tensioning wheel.

[0020] The beneficial effects of the present invention are as follows: the mesh bag is arranged outside the two long axes, the mesh bag is supported by the long axes, a restraint belt is arranged at the folded edge position of the mesh bag near the bag opening to limit the folded edge position of the mesh bag, and the mesh bag opening is convenient to fold, the bag opening of the mesh bag is folded by the action of the initial folding component, and the folded mesh bag opening is driven to be folded again by the final folding component to improve the strength of the mesh bag opening, and the mesh bag after the bag opening is folded is sealed under the action of a sewing machine, without the need for manual folding, thereby improving the processing efficiency of the mesh bag, and the folded width of the mesh bag opening is consistent, and the aesthetics is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0023] Figure 2 This is a schematic diagram of the overall rear view structure of this embodiment;

[0024] Figure 3 This is a schematic diagram of the overall structure of this embodiment when viewed from above;

[0025] Figure 4 This is a schematic diagram of the overall side view of the structure of this embodiment;

[0026] Figure 5 For this embodiment Figure 1 A in the middle is an enlarged structural diagram;

[0027] Figure 6 For this embodiment Figure 3 The enlarged structural diagram at B in the middle;

[0028] Figure 7 For this embodiment Figure 4 Enlarged structural diagram at point C in the middle.

[0029] Description of reference numerals:

[0030] In the figure: 1. operating table; 2. sewing machine; 3. assembly plate; 4. ear seat; 5. long shaft; 6. mesh bag; 7. restraint belt; 8. initial folding assembly; 801. curved plate; 802. mounting plate; 803. folding cylinder; 9. connecting guide rail; 10. connecting slide; 11. connecting plate; 12. connecting cylinder; 13. column; 14. U-shaped plate; 15. final folding assembly; 1501. bottom plate; 1502. outer plate; 1503. inner plate; 1504. C-shaped groove; 1505. guide plate; 16. adjustment assembly ;1601, through hole; 1602, square plate; 1603, sleeve plate; 1604, waist groove; 1605, bolt; 17, clamping assembly; 1701, support seat; 1702, clamping cylinder; 1703, I-shaped pressure plate; 18, drive motor; 19, synchronous wheel; 20, synchronous belt; 21, operating column; 22, tensioning wheel; 23, guide rail; 24, guide slider; 25, control panel; 26, control cylinder; 27, support; 28, limit rail; 29, limit slider; 30, limit cylinder. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] A fully automatic mesh bag lockstitch forming machine, such as Figure 1-7, including an operating table 1 and a sewing machine 2 located in the middle of the upper surface of the operating table 1. The sewing machine 2 is an existing device available on the market, so I will not go into details again. Two guide rails 23 are fixed on the upper surface of the operating table 1, and each guide rail 23 is slidably connected to a guide slider 24. A control board 25 is fixed on the side of the two guide sliders 24 facing away from the guide rails 23. A control cylinder 26 that drives the control board 25 to move is fixed on the operating table 1, and the long side direction of the guide rail 23 is perpendicular to the long side direction of the control board 25.

[0033] like Figure 1 and Figure 2 and Figure 3 and Figure 4 A support 27 is fixed on the operating table 1 and is arranged opposite to the control panel 25. The support 27 and the control panel 25 are respectively arranged on both sides of the sewing machine 2. A limit slide rail 28 is fixed on the upper surface of the support 27 and the control panel 25. The long side direction of the limit slide rail 28 is parallel to the center line direction of the long axis 5. The limit slide rail 28 is slidably connected to the limit slider 29. The assembly plate 3 is fixed on the side of the limit slider 29 away from the limit slide rail 28. The two assembly plates 3 are fixed by a connecting plate. A limit cylinder 30 for driving the adjacent assembly plates 3 to move is fixed on the support 27.

[0034] like Figure 1 and Figure 2 and Figure 3 and Figure 4 Two ear seats 4 are fixed on the upper surface of each assembly plate 3, and a horizontally arranged long axis 5 for supporting the net bag 6 is rotatably connected inside each two adjacent ear seats 4. The net bag 6 is sleeved outside the long axis 5, and the outer cover of the net bag 6 is provided with a restraining belt 7 for limiting the folding position of the net bag 6.

[0035] like Figure 1 and Figure 2 and Figure 3 and Figure 4 The control cylinder 26 provides power to drive the control plate 25 fixed to the control cylinder 26 to move in the horizontal direction. The cooperation of the guide rail 23 and the guide slider 24 guides the movement of the control plate 25, thereby driving one of the long axes 5 to move in the horizontal direction to adapt to net bags 6 of different sizes.

[0036] like Figure 1 and Figure 2 and Figure 3 and Figure 4 The limiting cylinder 30 provides power to drive the assembly plate 3 fixedly connected to the extended end of the limiting cylinder 30 to move. The cooperation of the limiting slide rail 28 and the limiting slider 29 guides the movement of the long shaft 5, so as to drive the net bag 6 on the long shaft 5 to move toward the sewing machine 2.

[0037] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 The upper surface of the operating table 1 is provided with two initial folding components 8 which are respectively located beside the long axis 5 and push the mesh bag 6 to fold. The mesh bag 6 is sleeved outside the two long axes 5, and the mesh bag 6 is supported by the long axis 5. A restraint belt 7 is sleeved at the folding position of the mesh bag 6 near the bag mouth to limit the folding position of the mesh bag 6, so as to facilitate the folding of the mesh bag 6. The bag mouth of the mesh bag 6 is folded by the action of the initial folding component 8. After the bag mouth is folded, the mesh bag 6 is sealed under the action of the sewing machine 2. No manpower is required to fold it, thereby improving the processing efficiency of the mesh bag 6, and the folding width of the bag mouth of the mesh bag 6 is consistent, and the aesthetics is improved.

[0038] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 The initial folding component 8 includes an arc-shaped plate 801 which is sleeved outside the long axis 5 and adapted to the size of the long axis 5. The circumferential outer wall of the arc-shaped plate 801 is integrally formed with a mounting plate 802. A folding cylinder 803 is provided on the side of the long axis 5. The extended end of the folding cylinder 803 is fixed to the mounting plate 802. The arc-shaped plate 801 is sleeved outside the long axis 5 and is slidingly connected to the long axis 5. At the same time, the arc-shaped plate 801 is adapted to the size of the bag opening of the net bag 6. The power is provided by the folding cylinder 803. The arc-shaped plate 801 and the extended end of the folding cylinder 803 are connected through the mounting plate 802. The cylinder pushes the arc-shaped plate 801 to move toward the direction of the net bag 6 to facilitate the folding of the bag opening of the net bag 6.

[0039] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 Four connecting guide rails 9 are fixed on the upper surface of the operating table 1, and connecting sliders 10 are slidably connected to the four connecting guide rails 9. A connecting plate 11 is fixed on the side of several connecting sliders 10 away from the connecting guide rails 9, and the side of the connecting plate 11 away from the connecting slider 10 is fixedly connected to the folding cylinder 803. A connecting cylinder 12 is fixed on the operating table 1 for driving the connecting plate 11 to slide along the direction of the connecting guide rails 9. The long side direction of the connecting guide rails 9 is perpendicular to the center line direction of the long axis 5. Power is provided by the connecting cylinder 12 to push the connecting plate 11 to move in the horizontal direction. The movement of the connecting plate 11 will drive the folding cylinder 803 fixed to the connecting plate 11 to move, so that the arc plate 801 is always sleeved outside the long axis 5.

[0040] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5and Figure 7 A column 13 is fixed on the upper surface of the operating table 1, and a U-shaped plate 14 is fixed on the side of the column 13 away from the operating table 1. The upper and lower sides of the U-shaped plate 14 are provided with final folding components 15 for the folded net bag 6 to be folded again. After the folding cylinder 803 pushes the arc plate 801 to move and pushes the net bag 6 to fold, the folded net bag 6 is driven to fold again by the final folding component 15, so as to improve the strength of the net bag 6. The final folding component 15 is supported by the U-shaped plate 14 and the column 13. The U-shaped plate 14 is sleeved on the outside of the net bag 6 and the U-shaped plate 14 does not affect the movement of the net bag 6. The U-shaped plate 14 is located next to the sewing machine 2. When the folded pocket part of the net bag 6 is sewn by the sewing machine 2, the net bag 6 does not need to be moved again.

[0041] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 7 The final folding assembly 15 includes a base plate 1501 fixed on the U-shaped plate 14, and the upper surface of the base plate 1501 is integrally formed with an outer plate 1502 and an inner plate 1503 located inside the outer plate 1502. A C-shaped groove 1504 is formed between the outer plate 1502 and the inner plate 1503. The outer plate 1502 is integrally formed with a guide plate 1505 on the side facing the sewing machine 2. The guide plate 1505 is tilted, and the base plate 1501 and the arc plate 801 are arranged alternately.

[0042] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 7 The opening of the net bag 6 is folded under the push of the arc plate 801, and enters the C-shaped groove 1504 formed by the outer plate 1502 and the inner plate 1503 through the guide plate 1505. At this time, the opening of the net bag 6 is folded again. The bottom plate 1501 and the arc plate 801 are arranged alternately to prevent the arc plate 801 from being stuck in the outer plate 1502 when the arc plate 801 pushes the net bag 6 to fold, causing wrinkles at the opening of the net bag 6.

[0043] like Figure 7 An adjusting component 16 for adjusting the folding width of the opening of the net bag 6 is provided on the bottom plate 1501. By setting the adjusting component 16, the folding width of the opening of the net bag 6 is adjusted, thereby improving the applicability of the device.

[0044] like Figure 7The adjustment component 16 includes a through hole 1601 provided on the outer sleeve plate 1502, and a square plate 1602 is slidably connected in the through hole 1601. Both ends of the square plate 1602 pass through the outer sleeve plate 1502 through the through hole 1601, and one end of the square plate 1602 passing through the outer sleeve plate 1502 is integrally formed with a clamping plate 1603 with a C-shaped cross-section. The lower surface of the clamping plate 1603 conflicts with the upper surface of the bottom plate 1501, and the clamping plate 1603 is inserted into the inner sleeve plate 1503. A waist-shaped groove 1604 is provided at the other end of the square plate 1602 passing through the outer sleeve plate 1502, and a circular hole is provided on the bottom plate 1501, which is located directly below the waist-shaped groove 1604 and is adapted to the waist-shaped groove 1604. The bottom plate 1501 and the square plate 1602 are fixedly connected by bolts 1605 passing through the waist-shaped groove 1604 and the circular hole.

[0045] like Figure 7 According to the required folding width of the bag opening of the mesh bag 6, the staff grasps the square plate 1602 and manually pulls the square plate 1602 to adjust the position of the clamping plate 1603 in the inner plate 1503, and passes through the waist-shaped groove 1604 and the circular hole through the bolt 1605 to fix the square plate 1602 and the bottom plate 1501. The square plate 1602 and the clamping plate 1603 will not be displaced during the work process.

[0046] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 and Figure 6 The upper surface of the sewing machine 2 and the upper surface of the operating table 1 are respectively provided with a clamping assembly 17 for limiting the middle position of the net bag 6. When the opening of the net bag 6 needs to be folded, the upper and lower parts of the net bag 6 are clamped respectively by fixing the clamping assembly 17 on the upper surface of the sewing machine 2 and the upper surface of the operating table 1, so as to facilitate the folding of the opening of the net bag 6.

[0047] like Figure 6 The clamping assembly 17 includes a support base 1701, and a clamping cylinder 1702 is fixed to the side of the support base 1701 facing the net bag 6. The extended end of the clamping cylinder 1702 is fixed with an I-shaped pressure plate 1703 for clamping the net bag 6. The power provided by the clamping cylinder 1702 drives the I-shaped pressure plate 1703 to clamp the net bag 6, making it convenient for the bag mouth of the net bag 6 to be folded.

[0048] like Figure 1 and Figure 2 and Figure 3 and Figure 4The two long shafts 5 are rotated, and the mesh bag 6 on the long shaft 5 is rotated, which is convenient for sewing the bag mouth position of the mesh bag 6.

[0049] When in use, the power is turned on and the switch is turned on. The staff puts the net bag 6 outside the two long shafts 5 and turns on the control cylinder 26. The control cylinder 26 provides power to drive the control plate 25 fixedly connected to the extended end of the control cylinder 26 to move in the horizontal direction. The guide rail 23 and the guide slider 24 guide the movement of the control plate 25. The movement of the control plate 25 drives the assembly plate 3 connected to the control plate 25 to move. The movement of the assembly plate 3 drives the long shaft 5 on the assembly plate 3 to move, so as to open the net bag 6.

[0050] A rubber sleeve is provided on the long shaft 5 to improve the anti-slip performance. When the long shaft 5 rotates or moves, the mesh bag 6 sleeved on the outside of the long shaft 5 moves with the long shaft 5. The opening of the mesh bag 6 is close to the arc-shaped plate 801, and the restraint belt 7 is sleeved on the outside of the mesh bag 6. The position of the restraint bag is adjusted according to the width of the opening of the mesh bag 6 that needs to be folded. The U-shaped plate 14 is sleeved on the outside of the mesh bag 6 and does not affect the movement of the mesh bag 6.

[0051] Open the pressing cylinder 1702, which provides power to drive the I-shaped pressing plate 1703 fixed to the extended end of the pressing cylinder 1702 to move toward the net bag 6 and press the net bag 6;

[0052] Then, the control cylinder 26 is turned on to drive the control plate 25 to move in the opposite direction in the horizontal direction. The movement of the control plate 25 drives the assembly plate 3 and the long axis 5 connected to the control plate 25 to move, so that the net bag 6 is not completely in contact with the long axis 5. The position of the net bag 6 and the long axis 5 are closely in contact with the restraining belt 7, and the part of the net bag 6 that is not in contact with the restraining bag is not completely in contact with the long axis 5.

[0053] At this time, the connecting cylinder 12 is opened, and the connecting cylinder 12 provides power to push the connecting plate 11 to move in the horizontal direction. The movement of the connecting plate 11 drives the folding cylinder 803 fixed to the connecting plate 11 to move, so that the curved plate 801 is sleeved outside the long axis 5 and close to the long axis 5. Then, the folding cylinder 803 is opened, and the folding cylinder 803 provides power to drive the mounting plate 802 and the curved plate 801 fixed to the extended end of the folding cylinder 803 to move. The curved plate 801 moves toward the net bag 6 and pushes the bag opening of the net bag 6 to fold.

[0054] The folded portion of the mesh bag 6 enters the groove formed by the outer plate 1502, the inner plate 1503 and the clamping plate 1603 through the guide plate 1505, thereby realizing the re-folding of the bag opening of the mesh bag 6;

[0055] After the opening of the net bag 6 is folded again, the pressing cylinder 1702 is opened, and the power provided by the pressing cylinder 1702 drives the I-shaped pressing plate 1703 fixed to the extended end of the pressing cylinder 1702 to move in a direction away from the net bag 6;

[0056] Then open the control cylinder 26, and the control cylinder 26 drives the control plate 25 to move in the horizontal direction. The movement of the control plate 25 will drive the assembly plate 3 and the long axis 5 connected to the control plate 25 to move. The long axis 5 supports the mesh bag 6 and makes the mesh bag 6 completely fit with the long axis 5.

[0057] Turn on the sewing machine 2, and sew and seal the edge of the net bag 6 body after the final folding through the action of the sewing machine 2. At the same time, turn on the drive motor 18, and the drive motor 18 provides power to drive the long shaft 5 coaxially fixed with the output shaft of the drive motor 18 to rotate. The rotation of the long shaft 5 will drive the synchronous wheel 19 coaxially fixed with the long shaft 5 to rotate. The power is transmitted through the synchronous wheel 19 and the synchronous belt 20 to facilitate the rotation of the other long shaft 5. The synchronous belt 20 is tensioned by the tensioning wheel 22. The rotation of the two long shafts 5 will drive the net bag 6 on the long shaft 5 to rotate, making it convenient to sew the bag opening of the net bag 6.

[0058] After the opening of the mesh bag 6 is folded, the mesh bag 6 is removed and the restraint belt 7 inside the mesh bag 6 is removed. Since the braided wire of the mesh bag 6 is loose, it is easy to take out the restraint belt 7, and then the mesh bag 6 is folded as a whole, at this time, the folded opening of the mesh bag 6 faces inward.

[0059] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A fully automatic mesh bag lockstitch forming machine, characterized in that: The invention comprises an operating table (1) and a sewing machine (2) located in the middle of the upper surface of the operating table (1); the upper surface of the operating table (1) is provided with two assembly plates (3) which are arranged opposite to each other and are respectively located on both sides of the sewing machine (2); two ear seats (4) are fixed on the upper surface of each assembly plate (3); a long shaft (5) which is arranged horizontally and is used to support a mesh bag (6) is rotatably connected in each two adjacent ear seats (4); the mesh bag (6) is sleeved outside the long shaft (5); the outer cover of the mesh bag (6) is provided with a restraining belt (7) for limiting the folding position of the mesh bag (6); the upper surface of the operating table (1) is provided with two initial folding components (8) which are respectively located beside the long shaft (5) and push the bag mouth of the mesh bag (6) to fold; A column (13) is fixed on the upper surface of the operating table (1), a U-shaped plate (14) is fixed on the side of the column (13) away from the operating table (1), and a final folding assembly (15) for folding the opening of the folded net bag (6) again is provided on both the upper and lower sides of the U-shaped plate (14); The final folding assembly (15) comprises a bottom plate (1501) fixed on the U-shaped plate (14); an outer plate (1502) and an inner plate (1503) located inside the outer plate (1502) are integrally formed on the upper surface of the bottom plate (1501); a C-shaped groove (1504) is formed between the outer plate (1502) and the inner plate (1503); a guide plate (1505) is integrally formed on the side of the outer plate (1502) facing the sewing machine (2); and the guide plate (1505) is arranged at an angle.

2. The fully automatic mesh bag lockstitch forming machine according to claim 1, characterized in that: The primary folding assembly (8) comprises an arc-shaped plate (801) sleeved outside the long axis (5) and adapted to the size of the long axis (5); a mounting plate (802) is integrally formed on the circumferential outer wall of the arc-shaped plate (801); a folding cylinder (803) is provided beside the long axis (5); and an extended end of the folding cylinder (803) is fixed to the mounting plate (802).

3. The fully automatic mesh bag lockstitch forming machine according to claim 2, characterized in that: Four connecting guide rails (9) are fixed on the upper surface of the operating table (1), and connecting sliders (10) are slidably connected to the four connecting guide rails (9). A connecting plate (11) is fixed on the side of several connecting sliders (10) facing away from the connecting guide rails (9), and the side of the connecting plate (11) facing away from the connecting sliders (10) is fixedly connected to a folding cylinder (803). A connecting cylinder (12) is fixed on the operating table (1) for driving the connecting plate (11) to slide along the direction of the connecting guide rails (9).

4. The fully automatic mesh bag lockstitch forming machine according to claim 1, characterized in that: The bottom plate (1501) is provided with an adjustment component (16) for adjusting the folding width of the opening of the mesh bag (6).

5. The fully automatic mesh bag lockstitch forming machine according to claim 4, characterized in that: The adjustment assembly (16) includes a through hole (1601) provided on the outer plate (1502), a square plate (1602) is slidably connected in the through hole (1601), both ends of the square plate (1602) pass through the outer plate (1502) through the through hole (1601), and one end of the square plate (1602) passing through the outer plate (1502) is integrally formed with a clamping plate (1603) with a C-shaped cross section, and the lower surface of the clamping plate (1603) is connected to the bottom plate (1501). The upper surface of the square plate (1602) is in conflict with the upper surface, and the clamping plate (1603) is inserted into the inner plate (1503). The other end of the square plate (1602) passing through the outer plate (1502) is provided with a waist-shaped groove (1604). The bottom plate (1501) is provided with a circular hole located directly below the waist-shaped groove (1604) and adapted to the waist-shaped groove (1604). The bottom plate (1501) and the square plate (1602) are fixedly connected by bolts (1605) passing through the waist-shaped groove (1604) and the circular hole.

6. The fully automatic mesh bag lockstitch forming machine according to claim 1, characterized in that: The upper surface of the sewing machine (2) and the upper surface of the operating table (1) are respectively provided with a clamping assembly (17) for limiting the middle position of the net bag (6).

7. The fully automatic mesh bag lockstitch forming machine according to claim 6, characterized in that: The clamping assembly (17) comprises a support seat (1701), a pressing cylinder (1702) is fixed on the side of the support seat (1701) facing the mesh bag (6), and an I-shaped pressing plate (1703) for clamping the mesh bag (6) is fixed to the extended end of the pressing cylinder (1702).

8. The fully automatic mesh bag lockstitch forming machine according to claim 1, characterized in that: A driving motor (18) for driving the adjacent long shaft (5) to rotate is fixed on one of the assembly plates (3); a synchronous wheel (19) is coaxially fixed to the outside of the two long shafts (5); a synchronous belt (20) meshing with the synchronous wheel (19) is sleeved on the outside of the two synchronous wheels (19); an operating column (21) is fixed on the other assembly plate (3); the operating column (21) rotates toward one side of the synchronous belt (20) and is connected to a tensioning wheel (22) meshing with the synchronous belt (20); the synchronous belt (20) is sleeved on the outside of the tensioning wheel (22).

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