Edge folding device of bag opening machine

Abstract

The utility model provides an edge folding device of a bag opening machine, and belongs to the technical field of bag opening machines. The edge folding device solves the problem that in the prior art, an edge folding device of a bag opening machine is poor in applicability. The edge folding device of the bag opening machine comprises a machine base, a first installation base and a second installation base, the first installation base and the second installation base are vertically arranged on the machine base in a front-back mode, and a front edge folding cutter and a rear edge folding cutter are arranged at the bottom of the first installation base and the bottom of the second installation base respectively. The machine base is further provided with a first horizontal driving assembly and a second horizontal driving assembly which can drive the first installation base and the second installation base to horizontally move front and back respectively, and the first installation base is provided with a first lifting driving assembly which can drive the front edge folding cutter to vertically move up and down relative to the machine base. And a second lifting driving assembly capable of driving the rear edge folding cutter to vertically move up and down relative to the machine base is arranged on the second mounting base. The edge folding device has the advantage that the applicability of the edge folding device of the bag opening machine can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bag opening machine, and relates to a hemming device of bag opening machine. BACKGROUND

[0002] The bag opening machine (or bag opening sewing machine, bag opening device, etc.) is a device specially used for sewing pockets, zippers and other parts in the clothing, luggage and other industries. The existing bag opening machine usually includes a cutting device, a sewing device, a hemming device and a pressing frame device matched with the hemming device. The hemming device is mainly used to form a pocket opening on the fabric. The pocket opening is usually in a long strip structure. Specifically, the cutting device is first used to cut a seam matching the required pocket opening in the predetermined pocket opening area. Then, the hemming device matching the required pocket opening is inserted into the pocket opening area. Through the cooperation of the hemming device and the pressing frame device, each pocket edge piece is respectively folded to the inside of the pocket opening and forms a hem, and at the same time, the required pocket opening shape is formed. Finally, according to the actual needs, the sewing device is directly used to sew the hem, or after the pocket opening is overlaid with a pocket lip or a zipper or a cloth piece and other sewing materials, the sewing device is used to sew the hem, thereby completing the bag opening work.

[0003] For example, a bag opening machine and a pocket opening sewing processing technology (application number: 202410277290.8) are disclosed in the Chinese patent document. The bag opening machine includes a pocket opening forming device, the pocket opening forming device includes a base, a folding mechanism and a material positioning mechanism arranged on the base, the folding mechanism is located above the material positioning mechanism, the base is provided with a Y-axis sliding rail and a third driving mechanism, the folding mechanism is provided with a mounting seat, the mounting seat is connected with the Y-axis sliding rail and slides along the Y-axis direction under the driving of the third driving mechanism; the folding mechanism further includes a knife holder, a knife group, a knife sliding rail group and a knife driving mechanism, the knife group is composed of two X-axis knives and two Y-axis knives arranged in a rectangular shape, the knife sliding rail group is composed of an X-axis knife sliding rail and a Y-axis knife sliding rail, the knife driving mechanism includes an X-axis driving unit driving the two X-axis knives to open or reset along the X-axis knife sliding rail, and a Y-axis driving unit driving the two Y-axis knives to open or reset along the Y-axis knife sliding rail; the mounting seat is further provided with a lifting sliding rail in the Z-axis direction and a fourth driving mechanism, the knife holder is connected with the lifting sliding rail and lifts along the Z-axis direction on the mounting seat under the driving of the fourth driving mechanism. The third driving mechanism and the fourth driving mechanism are both air cylinders, and the X-axis driving unit and the Y-axis driving unit are both air cylinders.

[0004] The bag opening machine has the following defects in use: when the bag opening machine works, the fourth driving mechanism drives the knife set to insert into the processing window of the material positioning mechanism, and the two Y-axis knives are opened along the Y-axis direction to fold the cut bag opening, that is, the two Y-axis knives of the knife set are lifted and lowered along the Z-axis direction synchronously, and since the bottoms of the two Y-axis knives are both in a bent shape and the bending directions are opposite, when the slit of the required processing bag opening is a "H-shaped" slit (that is, when the slit gap of the required bag opening is narrow), the two Y-axis knives cannot be inserted into the slit of the bag opening at the same time, so that the bag opening machine cannot process the bag opening with a narrow slit, and the applicability is poor. SUMMARY

[0005] The utility model discloses to solve the technical problem of the poor applicability of the edge folding device of the existing bag opening machine.

[0006] The utility model discloses to solve the technical problem of the poor applicability of the edge folding device of the existing bag opening machine.

[0007] The utility model discloses an edge folding device of bag opening machine, including the base and the first mounting seat and the second mounting seat that set up perpendicularly in front and back respectively on the base, the bottom of the first mounting seat and the second mounting seat both sets up with the front edge folding knife and rear edge folding knife, its characterized in that, still set up with the first horizontal drive subassembly and the second horizontal drive subassembly respectively can drive the first mounting seat and the second mounting seat front and back horizontal movement on the base, and set up with the first lifting drive subassembly can drive the front edge folding knife relative to the base vertical movement up and down on the first mounting seat, set up with the second lifting drive subassembly can drive the rear edge folding knife relative to the base vertical movement up and down on the second mounting seat.

[0008] The front edge folding knife and the rear edge folding knife of the edge folding device of the bag opening machine can be independently moved up and down under the control of the first lifting assembly and the second lifting assembly, and the front edge folding knife and the rear edge folding knife can also be independently moved forward and backward under the control of the first horizontal drive assembly and the second horizontal drive assembly, so that the edge folding device of the bag opening machine can be used to process sewing materials with a "H-shaped" slit or other narrow slits, thereby solving the problem of poor applicability of the edge folding device of the existing bag opening machine.

[0009] In the above-described folding device of the bag opening machine, the first lifting driving assembly comprises a first lifting motor arranged on the first mounting seat, a first front synchronous wheel sleeved on an output shaft of the first lifting motor, and a second front synchronous wheel rotatably connected to the bottom of the first mounting seat, the first front synchronous wheel and the second front synchronous wheel are arranged oppositely and a first lifting synchronous belt is arranged between the first front synchronous wheel and the second front synchronous wheel, and the front folding knife is connected to the first lifting synchronous belt. The first lifting motor is preferably a servo motor, and the cooperation of the first lifting motor and the first lifting synchronous belt can realize high-precision positioning of the up-down position of the front folding knife, thereby improving the folding quality of the folding device of the bag opening machine. In addition, the first lifting assembly can also adopt the following structure: the first lifting driving assembly comprises a first lifting motor arranged on the first mounting seat and a first lead screw connected at one end to an output shaft of the first lifting motor, the other end of the first lead screw is connected to the first mounting seat, a first sliding block is threadedly connected to the first lead screw, and the front folding knife is connected to the first sliding block.

[0010] In the above-described folding device of the bag opening machine, the front folding knife is connected to the first lifting synchronous belt through a first fixing plate, the first mounting seat is connected with first sliding rails arranged vertically, the first fixing plate is slidably connected to the first sliding rails through a first sliding block, the first mounting seat is provided with a first limiting plate in the shape of a "Fang", the first fixing plate is connected with a first positioning plate in the shape of L, the first bending part of the first positioning plate is arranged between the upper end and the lower end of the first limiting plate, and the first bending part can form limiting cooperation with the upper end and the lower end of the first limiting plate, respectively. By additionally arranging the first sliding rails on the first mounting seat and slidably connecting the first fixing plate connected with the front folding knife to the first sliding rails through the first sliding block, and at the same time, the upper end and the lower end of the first limiting plate in the shape of "Fang" can form limiting of the up-down movement of the first bending part of the first positioning plate, respectively, the accuracy of the up-down position adjustment of the front folding knife can be further improved.

[0011] In the folding device of the bag opening machine, the second lifting driving assembly comprises a second lifting motor arranged on the second mounting base, a first rear synchronous wheel sleeved on an output shaft of the second lifting motor, and a second rear synchronous wheel rotatably connected to the bottom of the second mounting base, the first rear synchronous wheel and the second rear synchronous wheel are arranged oppositely and are provided with the second lifting synchronous belt therebetween, and the rear folding knife is connected to the second lifting synchronous belt. The second lifting motor is preferably a servo motor, and the cooperation of the second lifting motor and the second lifting synchronous belt can realize high-precision positioning of the position of the rear folding knife, thereby improving the folding quality of the folding device of the bag opening machine. In addition, the second lifting driving assembly can also adopt the following structure: the second lifting driving assembly comprises a second lifting motor arranged on the second mounting base and a second lead screw connected at one end to the output shaft of the second lifting motor, the other end of the second lead screw is connected to the second mounting base, a second sliding block is threadedly connected to the second lead screw, and the rear folding knife is connected to the second sliding block.

[0012] In the folding device of the bag opening machine, the rear folding knife is connected to the second lifting synchronous belt through a second fixing plate, the second mounting base is connected with second sliding rails arranged vertically, the second fixing plate is slidably connected to the second sliding rails through a second sliding block, the second mounting base is provided with a second limiting plate in the shape of a "Fang", the second fixing plate is connected with a second positioning plate in the shape of L, the second bending part of the second positioning plate is arranged between the upper end and the lower end of the second limiting plate, and the second bending part can form limiting cooperation with the upper end and the lower end of the second limiting plate, respectively. By adding the second sliding rails on the second mounting base and slidably connecting the second fixing plate connected with the rear folding knife to the second sliding rails through the second sliding block, at the same time, the upper end and the lower end of the second limiting plate in the shape of "Fang" can form limiting of the up-down movement of the second bending part of the second positioning plate, thereby further improving the accuracy of the up-down position adjustment of the rear folding knife.

[0013] In the folding device of the bag opening machine, the lower end of the second limiting plate is vertically provided with an oil buffer, and the second bending part of the second positioning plate is located directly above the oil buffer. When the second fixing plate on the second mounting base descends with the second lifting synchronous belt, the oil buffer can support and buffer the second positioning plate when the second bending part of the second positioning plate contacts the oil buffer, thereby avoiding hard contact between the second positioning plate and the lower end of the second limiting plate when the second mounting base continues to descend, and playing a role of energy absorption protection.

[0014] In the folding device of the bag opening machine, the first horizontal driving assembly comprises a first horizontal driving motor arranged on the base, a first left synchronous wheel sleeved on the output shaft of the first horizontal driving motor, and a second left synchronous wheel rotatably connected to the base, the second left synchronous wheel and the first left synchronous wheel are arranged opposite to each other, and a first synchronous belt is arranged between the second left synchronous wheel and the first left synchronous wheel, and the first mounting seat is connected to the first synchronous belt. The first horizontal driving motor is preferably a servo motor. The cooperation of the first horizontal driving motor and the first synchronous belt can realize high-precision positioning of the front and rear positions of the first mounting seat, thereby improving the folding quality of the folding device of the bag opening machine. In addition, the first horizontal driving assembly can also adopt the following structure: the first horizontal driving assembly comprises a first horizontal driving motor arranged on the base and a third screw rod connected at one end to the output shaft of the first horizontal driving motor, the other end of the third screw rod is connected to the base, a third sliding block is threadedly connected to the third screw rod, and the first mounting seat is connected to the third sliding block.

[0015] In the folding device of the bag opening machine, the second horizontal driving assembly comprises a second horizontal driving motor arranged on the base, a first right synchronous wheel sleeved on the output shaft of the second horizontal driving motor, and a second right synchronous wheel rotatably connected to the base, the second right synchronous wheel and the first right synchronous wheel are arranged opposite to each other, and a second synchronous belt is arranged between the second right synchronous wheel and the first right synchronous wheel, and the second mounting seat is connected to the second synchronous belt. The second horizontal driving motor is preferably a servo motor. The cooperation of the second horizontal driving motor and the second synchronous belt can realize high-precision positioning of the front and rear positions of the second mounting seat, thereby improving the folding quality of the folding device of the bag opening machine. In addition, the second horizontal driving assembly can also adopt the following structure: the second horizontal driving assembly comprises a second horizontal driving motor arranged on the base and a fourth screw rod connected at one end to the output shaft of the second horizontal driving motor, the other end of the fourth screw rod is connected to the base, a fourth sliding block is threadedly connected to the fourth screw rod, and the second mounting seat is connected to the fourth sliding block.

[0016] In the folding device of the bag opening machine, the first horizontal driving assembly and the second horizontal driving assembly are respectively arranged symmetrically on the two sides of the base, and the first mounting seat is located between the first lifting driving assembly and the second lifting driving assembly. By arranging the first lifting driving assembly and the second lifting driving assembly respectively on the left side of the first mounting seat and the second mounting seat, the front folding knife arranged at the bottom of the first mounting seat and the rear folding knife arranged at the bottom of the second mounting seat can be better folded and unfolded, and more importantly, the structure of the folding device of the bag opening machine can be more compact.

[0017] The bottom of the machine base is connected with third slide rails arranged horizontally in front and back, the top of the first mounting seat is slidably connected with the third slide rails through third slide blocks, and the top of the second mounting seat is slidably connected with the third slide rails through fourth slide blocks. By arranging the third slide rails on the machine base, the first mounting seat and the second mounting seat are slidably connected with the third slide rails through the third slide blocks and the fourth slide blocks, so that the front and back independent movements of the first mounting seat and the second mounting seat are more accurate, and the structure of the first mounting seat and the second mounting seat is more compact.

[0018] Compared with the prior art, the folding device of the bag opening machine has the advantages that the front folding knife and the rear folding knife of the folding device of the bag opening machine can independently move up and down under the control of the first lifting assembly and the second lifting assembly, and the front folding knife and the rear folding knife can independently move forward and backward under the control of the first horizontal driving assembly and the second horizontal driving assembly, so that the folding device of the bag opening machine can be used for processing the sewing material with the bag opening slit in the "H" shape, thereby solving the problem of poor applicability of the folding device of the existing bag opening machine. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a perspective view of the folding device of the bag opening machine.

[0020] Figure 2 FIG. 2 is a side view of the folding device of the bag opening machine.

[0021] Figure 3 FIG. 3 is a right view of the folding device of the bag opening machine.

[0022] Figure 4 FIG. 4 is a left view of the folding device of the bag opening machine.

[0023] Figure 5 FIG. 5 is an exploded view of the first mounting seat, the first lifting driving assembly and the front folding knife of the folding device of the bag opening machine.

[0024] In the figure, 1, base; 2, first mounting seat; 3, second mounting seat; 4, front flanging cutter; 5, rear flanging cutter; 6, first horizontal drive assembly; 6a, first horizontal drive motor; 6b, first left synchronous wheel; 6c, second left synchronous wheel; 6d, first synchronous belt; 7, second horizontal drive assembly; 7a, second horizontal drive motor; 7b, first right synchronous wheel; 7c, second right synchronous wheel; 7d, second synchronous belt; 8, first lifting drive assembly; 8a, first lifting motor; 8b, first front synchronous wheel; 8c, second front synchronous wheel; 8d, first lifting synchronous belt; 9, second lifting drive assembly; 9a, second lifting motor; 9b, first rear synchronous wheel; 9c, second rear synchronous wheel; 9d, second lifting synchronous belt; 10, first fixed plate; 11, first sliding rail; 12, first sliding block; 13, first limiting plate; 14, first positioning plate; 14a, first bent portion; 15, second fixed plate; 16, second sliding rail; 17, second sliding block; 18, second limiting plate; 19, second positioning plate; 19a, second bent portion; 20, oil buffer; 21, third sliding rail; 22, third sliding block; 23, fourth sliding block. DETAILED DESCRIPTION

[0025] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0026] Embodiment one

[0027] A flanging device of a bag opening machine, referring to Figures 1-5 , comprising a base 1 and a first mounting seat 2 and a second mounting seat 3 vertically arranged on the base 1 respectively, the bottom of the first mounting seat 2 and the second mounting seat 3 is provided with a front flanging cutter 4 and a rear flanging cutter 5 respectively, the base 1 is further provided with a first horizontal drive assembly 6 and a second horizontal drive assembly 7 capable of driving the first mounting seat 2 and the second mounting seat 3 to move horizontally forward and backward respectively, and the first mounting seat 2 is provided with a first lifting drive assembly 8 capable of driving the front flanging cutter 4 to move vertically up and down relative to the base 1, and the second mounting seat 3 is provided with a second lifting drive assembly 9 capable of driving the rear flanging cutter 5 to move vertically up and down relative to the base 1. The first horizontal drive assembly 6 and the second horizontal drive assembly 7 are preferably arranged symmetrically on the two sides of the base 1 respectively, and the first mounting seat 2 is located between the first lifting drive assembly 8 and the second lifting drive assembly 9.

[0028] Specifically, the first lifting driving assembly 8 comprises a first lifting motor 8a arranged on the first mounting base 2, a first front synchronous wheel 8b sleeved on an output shaft of the first lifting motor 8a, and a second front synchronous wheel 8c rotatably connected to a bottom of the first mounting base 2. The first front synchronous wheel 8b and the second front synchronous wheel 8c are arranged oppositely, and a first lifting synchronous belt 8d is arranged between the first front synchronous wheel 8b and the second front synchronous wheel 8c. The front flanging cutter 4 is connected to the first lifting synchronous belt 8d.

[0029] More specifically, the front flanging cutter 4 is connected to the first lifting synchronous belt 8d through a first fixing plate 10. The first mounting base 2 is connected with first slide rails 11 arranged vertically. The first fixing plate 10 is slidably connected to the first slide rails 11 through first slide blocks 12. The first mounting base 2 is provided with a first limiting plate 13 in the shape of “ ”. The first fixing plate 10 is connected with a first positioning plate 14 in the shape of L. A first bent portion 14a of the first positioning plate 14 is arranged between the upper end and the lower end of the first limiting plate 13. The first bent portion 14a can be limitedly matched with the upper end and the lower end of the first limiting plate 13 respectively.

[0030] Specifically, the second lifting driving assembly 9 comprises a second lifting motor 9a arranged on the second mounting base 3, a first rear synchronous wheel 9b sleeved on an output shaft of the second lifting motor 9a, and a second rear synchronous wheel 9c rotatably connected to a bottom of the second mounting base 3. The first rear synchronous wheel 9b and the second rear synchronous wheel 9c are arranged oppositely, and a second lifting synchronous belt 9d is arranged between the first rear synchronous wheel 9b and the second rear synchronous wheel 9c. The rear flanging cutter 5 is connected to the second lifting synchronous belt 9d.

[0031] More specifically, the rear flanging cutter 5 is connected to the second lifting synchronous belt 9d through a second fixing plate 15. The second mounting base 3 is connected with second slide rails 16 arranged vertically. The second fixing plate 15 is slidably connected to the second slide rails 16 through second slide blocks 17. The second mounting base 3 is provided with a second limiting plate 18 in the shape of “ ”. The second fixing plate 15 is connected with a second positioning plate 19 in the shape of L. A second bent portion 19a of the second positioning plate 19 is arranged between the upper end and the lower end of the second limiting plate 18. The second bent portion 19a can be limitedly matched with the upper end and the lower end of the second limiting plate 18 respectively.

[0032] Further, an oil buffer 20 is vertically arranged on the lower end of the second limiting plate 18. The second bent portion 19a of the second positioning plate 19 is located directly above the oil buffer 20.

[0033] Specifically, the first horizontal drive assembly 6 comprises a first horizontal drive motor 6a arranged on the base 1, a first left synchronous wheel 6b sleeved on an output shaft of the first horizontal drive motor 6a, and a second left synchronous wheel 6c rotatably connected to the base 1, the second left synchronous wheel 6c and the first left synchronous wheel 6b are arranged opposite to each other and a first synchronous belt 6d is arranged between the second left synchronous wheel 6c and the first left synchronous wheel 6b, and the first mounting seat 2 is connected to the first synchronous belt 6d.

[0034] Specifically, the second horizontal drive assembly 7 comprises a second horizontal drive motor 7a arranged on the base 1, a first right synchronous wheel 7b sleeved on an output shaft of the second horizontal drive motor 7a, and a second right synchronous wheel 7c rotatably connected to the base 1, the second right synchronous wheel 7c and the first right synchronous wheel 7b are arranged opposite to each other and a second synchronous belt 7d is arranged between the second right synchronous wheel 7c and the first right synchronous wheel 7b, and the second mounting seat 3 is connected to the second synchronous belt 7d.

[0035] More specifically, the bottom of the base 1 is connected with third slide rails 21 arranged horizontally, the top of the first mounting seat 2 is slidably connected to the third slide rails 21 through third slide blocks 22, and the top of the second mounting seat 3 is slidably connected to the third slide rails 21 through fourth slide blocks 23.

[0036] The working principle of the folding device of the bag opening machine is described below:

[0037] After the cutting device of the bag opening machine with the folding device cuts a "H-shaped" opening in the bag opening area of the predetermined sewing object, the first horizontal drive assembly 6 drives the first mounting seat 2 to slide forward along the third slide rails 21 until the front folding knife 4 on the first mounting seat 2 is located directly above the "H-shaped" opening, then the first horizontal drive assembly 6 drives the first mounting seat 2 to continue sliding forward along the third slide rails 21 until the front folding knife 4 makes the corresponding edge of the "H-shaped" opening fold to the inside of the bag opening to form a fold, and then the fold is positioned under the action of the material positioning mechanism of the bag opening machine, then the front folding knife 4 is lowered again under the drive of the first lifting motor 8a to separate from the fold, and retreats a certain distance under the drive of the first horizontal drive assembly 6, and finally the front folding knife 4 exits the "H-shaped" opening and resets under the drive of the first lifting motor 8a;

[0038] Then the rear flanging knife 5 is driven by the second horizontal driving assembly 7 to slide forward along the third slide rail 21 until the rear flanging knife 5 on the second mounting base 3 is right above the "H-shaped" slit, then the second fixed plate 15 is driven by the second lifting motor 9a on the second mounting base 3 to slide downward along the second slide rail 16 until the rear flanging knife 5 on the second fixed plate 15 is inserted into the "H-shaped" slit, then the second horizontal driving assembly 7 drives the second mounting base 3 to retreat a distance along the third slide rail 21 until the rear flanging knife 5 makes the corresponding edge of the "H-shaped" slit fold to the inside of the bag opening to form a flange, then the flange is positioned under the action of the bag opening machine material positioning mechanism, then the rear flanging knife 5 is driven by the second lifting motor 9a to descend again to get out of the flange, and is driven by the second horizontal driving assembly 7 to advance a distance, and finally the rear flanging knife 5 is driven by the second lifting motor 9a to exit the "H-shaped" slit and reset.

[0039] The front flanging knife 4 and the rear flanging knife 5 of the flanging device of the bag opening machine can independently move up and down under the control of the first lifting assembly 8 and the second lifting assembly 9 respectively, and the front flanging knife 4 and the rear flanging knife 5 can also independently move forward and backward under the control of the first horizontal driving assembly 6 and the second horizontal driving assembly 7 respectively, so that the flanging device of the bag opening machine can be used for processing sewing materials whose slit is a "H-shaped" slit, thereby solving the problem of poor applicability of the flanging device of the existing bag opening machine.

[0040] Embodiment Two

[0041] The structure and principle of this embodiment and embodiment one are basically the same, and the difference lies in that the first horizontal driving assembly 6, the second horizontal driving assembly 7, the first lifting driving assembly 8 and the second lifting driving assembly 9 are all screw nut structures (the screw nut structure is not shown in the figure).

[0042] Specifically, the first lifting driving assembly 8 includes a first lifting motor 8a arranged on the first mounting base 2 and a first screw rod connected at one end to the output shaft of the first lifting motor 8a, the other end of the first screw rod being connected to the first mounting base 2, a first sliding block being threadedly connected to the first screw rod, and the front flanging knife 4 being connected to the first sliding block.

[0043] Similarly, the second lifting driving assembly 9 includes a second lifting motor 9a arranged on the second mounting base 3 and a second screw rod connected at one end to the output shaft of the second lifting motor 9a, the other end of the second screw rod being connected to the second mounting base 3, a second sliding block being threadedly connected to the second screw rod, and the rear flanging knife 5 being connected to the second sliding block.

[0044] Similarly, the first horizontal driving assembly 6 comprises a first horizontal driving motor 6a arranged on the base 1 and a third screw rod having one end connected to an output shaft of the first horizontal driving motor 6a, the other end of the third screw rod being connected to the base 1, a third sliding block being threadedly connected to the third screw rod, and the first mounting seat 2 being connected to the third sliding block.

[0045] Similarly, the second horizontal driving assembly 7 comprises a second horizontal driving motor 7a arranged on the base 1 and a fourth screw rod having one end connected to an output shaft of the second horizontal driving motor 7a, the other end of the fourth screw rod being connected to the base 1, a fourth sliding block being threadedly connected to the fourth screw rod, and the second mounting seat 3 being connected to the fourth sliding block.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0047] Although the terms such as the base 1, the first mounting seat 2, the second mounting seat 3, the front flanging cutter 4, the rear flanging cutter 5, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A bag opening machine's edge folding device, comprising a machine base (1) and a first mounting seat (2) and a second mounting seat (3) vertically arranged in front and back on the machine base (1) respectively, the bottom of both the first mounting seat (2) and the second mounting seat (3) is provided with a front edge folding knife (4) and a back edge folding knife (5) respectively, characterized in that, The machine base (1) is further provided with a first horizontal drive assembly (6) and a second horizontal drive assembly (7) capable of driving the first mounting seat (2) and the second mounting seat (3) to move horizontally forward and backward, respectively, and the first mounting seat (2) is provided with a first lifting drive assembly (8) capable of driving the front flanging knife (4) to move vertically up and down relative to the machine base (1), and the second mounting seat (3) is provided with a second lifting drive assembly (9) capable of driving the rear flanging knife (5) to move vertically up and down relative to the machine base (1).

2. A device for folding the edge of a bag according to claim 1, characterized in that The first lifting drive assembly (8) comprises a first lifting motor (8a) provided on the first mounting seat (2), a first front synchronous wheel (8b) sleeved on the output shaft of the first lifting motor (8a), and a second front synchronous wheel (8c) rotatably connected to the bottom of the first mounting seat (2), the first front synchronous wheel (8b) and the second front synchronous wheel (8c) are arranged oppositely and are provided with a first lifting synchronous belt (8d) therebetween, and the front flanging knife (4) is connected to the first lifting synchronous belt (8d).

3. A device for folding the edge of a bag according to claim 2, characterized in that The front flanging knife (4) is connected to the first lifting synchronous belt (8d) through a first fixing plate (10), the first mounting seat (2) is connected with a first slide rail (11) arranged vertically up and down, the first fixing plate (10) is slidably connected to the first slide rail (11) through a first sliding block (12), the first mounting seat (2) is provided with a first limiting plate (13) in the shape of "Fang", the first fixing plate (10) is connected with a first positioning plate (14) in the shape of "L", the first bending part (14a) of the first positioning plate (14) is arranged between the upper end and the lower end of the first limiting plate (13), and the first bending part (14a) can form limiting cooperation with the upper end and the lower end of the first limiting plate (13), respectively.

4. A device for folding the edge of a bag according to claim 1, characterized in that The second lifting drive assembly (9) comprises a second lifting motor (9a) provided on the second mounting seat (3), a first rear synchronous wheel (9b) sleeved on the output shaft of the second lifting motor (9a), and a second rear synchronous wheel (9c) rotatably connected to the bottom of the second mounting seat (3), the first rear synchronous wheel (9b) and the second rear synchronous wheel (9c) are arranged oppositely and are provided with a second lifting synchronous belt (9d) therebetween, and the rear flanging knife (5) is connected to the second lifting synchronous belt (9d).

5. A device for folding the edge of a bag according to claim 4, characterized in that The rear folding blade (5) is connected to the second lifting synchronous belt (9d) through a second fixing plate (15), a second sliding rail (16) vertically arranged on the second mounting base (3) is connected to the second fixing plate (15) through a second sliding block (17), and the second fixing plate (15) is slidably connected to the second sliding rail (16) through the second sliding block (17); a second limiting plate (18) in the shape of " " is arranged on the second mounting base (3), a second positioning plate (19) in the shape of L is connected to the second fixing plate (15), a second bending part (19a) of the second positioning plate (19) is arranged between the upper end and the lower end of the second limiting plate (18), and the second bending part (19a) can be limitedly matched with the upper end and the lower end of the second limiting plate (18) respectively.

6. A device for folding the edge of a bag according to claim 5, characterized in that An oil buffer (20) is vertically arranged on the lower end of the second limiting plate (18), and the second bending part (19a) of the second positioning plate (19) is located directly above the oil buffer (20).

7. A device for folding the edge of a bag according to any one of claims 1-6, characterized in that The first horizontal driving assembly (6) comprises a first horizontal driving motor (6a) arranged on the machine base (1), a first left synchronous wheel (6b) sleeved on an output shaft of the first horizontal driving motor (6a), and a second left synchronous wheel (6c) rotatably connected to the machine base (1), the second left synchronous wheel (6c) and the first left synchronous wheel (6b) are arranged opposite to each other and a first synchronous belt (6d) is arranged between the second left synchronous wheel (6c) and the first left synchronous wheel (6b), and the first mounting base (2) is connected to the first synchronous belt (6d).

8. A device for folding the edge of a bag according to claim 7, characterized in that The second horizontal driving assembly (7) comprises a second horizontal driving motor (7a) arranged on the machine base (1), a first right synchronous wheel (7b) sleeved on an output shaft of the second horizontal driving motor (7a), and a second right synchronous wheel (7c) rotatably connected to the machine base (1), the second right synchronous wheel (7c) and the first right synchronous wheel (7b) are arranged opposite to each other and a second synchronous belt (7d) is arranged between the second right synchronous wheel (7c) and the first right synchronous wheel (7b), and the second mounting base (3) is connected to the second synchronous belt (7d).

9. A device for folding the edge of a bag according to claim 8, characterized in that The first horizontal driving assembly (6) and the second horizontal driving assembly (7) are arranged symmetrically on the two sides of the machine base (1) respectively, and the first mounting base (2) is located between the first lifting driving assembly (8) and the second lifting driving assembly (9).

10. A device for folding the edge of a bag according to claim 8, characterized in that The bottom of the machine base (1) is connected with third sliding rails (21) arranged horizontally in front and back, the top of the first mounting base (2) is slidably connected to the third sliding rails (21) through third sliding blocks (22), and the top of the second mounting base (3) is slidably connected to the third sliding rails (21) through fourth sliding blocks (23).

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