An automatic bag sewing machine for producing packages

Abstract

The present application belongs to the technical field of production packaging equipment, and particularly relates to an automatic bag sewing machine for production and packaging, comprising a bag sewing machine body, a first conveying belt arranged on the front side of the bag sewing machine body, a packaging bag to be sewn arranged on the top of the first conveying belt, a tidying device arranged on one side of the bag sewing machine body, and the tidying device comprising a U-shaped frame, a fixed plate, a T-shaped air suction pipe and a first electric push rod. Compared with the existing sewing operation, the automatic bag sewing machine can automatically realize the tidying, tightening and pressing operation of the packaging bag opening before sewing through the cooperation of the air suction pipe, the air suction assembly, the bag tightening assembly and the pressing assembly, thereby avoiding the participation of manual work, improving the sewing automation degree and the overall sewing efficiency, and the packaging bag opening after being pressed can be more accurately and uniformly sewn by the bag sewing machine body, thereby improving the sewing quality of the packaging bag.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of production packaging equipment, and particularly relates to an automatic bag sewing machine for production packaging. BACKGROUND

[0002] The automatic bag sewing machine is an automatic packaging equipment, which is mainly used for sealing the bag opening of a packaging bag (such as a woven bag, a paper bag, a plastic bag, etc.) filled with materials. The automatic bag sewing machine automatically completes a series of operations such as feeding, positioning, sewing, and thread breaking through mechanical structure, replaces traditional manual bag sewing, and greatly improves packaging efficiency and sewing quality.

[0003] When the existing automatic bag sewing machine is used, after the loading mechanism places the packaging bag filled with products on the top of the fixed position of the conveying belt, the packaging bag can be close to the bag sewing machine under the conveying action of the conveying belt. Since there is no suitable arrangement device, when the packaging bag is placed on the top of the conveying belt by the loading mechanism, the bag opening of the packaging bag may be flat. Therefore, before the bag sewing machine sews the packaging bag, the installation personnel needs to manually arrange the flat bag opening of the packaging bag, which is troublesome. In the long-term working process, the worker will also be tired, which may cause the worker to arrange the bag opening in time, and thus affect the sewing quality of the subsequent packaging bag.

[0004] Therefore, it is necessary to invent an automatic bag sewing machine for production packaging to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides an automatic bag sewing machine for production packaging to solve the problems in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] An automatic bag sewing machine for production packaging, comprising a bag sewing machine body, a first conveying belt is arranged on the front side of the bag sewing machine body, a packaging bag to be sewn is placed on the top of the first conveying belt, an arrangement device is arranged on one side of the bag sewing machine body, the arrangement device comprises a U-shaped frame, a fixed plate, a T-shaped air suction pipe, a first electric push rod, a second electric push rod, a first limiting rod, an air suction assembly, a bag stretching assembly, and a bag opening pressing assembly.

[0008] The U-shaped frame is detachably mounted on the top of the first conveying belt, the number of the fixing plates is two, the two fixing plates are symmetrically arranged at the front and rear inner wall positions of the U-shaped frame, the air suction pipes are horizontally and slidingly inserted through the fixing plates, the first electric push rod is vertically connected between the top of the fixing plate and the inner wall of the top of the U-shaped frame, for driving the fixing plate to move in the vertical direction, the second electric push rod is horizontally connected between the top of the air suction pipe and the fixing plate, for driving the air suction pipe to move in the horizontal direction, the number of the first limiting rods is two, the two first limiting rods are both vertically and slidingly inserted through the top of the fixing plate, the top end of the first limiting rod is fixedly connected with the inner wall of the top of the U-shaped frame, and the bottom ends of the two first limiting rods are fixedly connected with the U-shaped frame through the same fixing strip, the air suction assembly is mounted on the top of the U-shaped frame and connected with the air suction pipe, for generating suction force on the two air suction pipes, the bag opening straightening assembly is mounted on the inner wall of the top of the U-shaped frame, for straightening the bag opening of the packaging bag, and the bag opening pressing assembly is arranged between the U-shaped frame and the bag sewing machine body, for transmitting the straightened bag opening to the bag sewing machine body for sewing operation.

[0009] Further, the air suction assembly comprises an air suction pump and two connecting pipes, the air suction pump is mounted on the top of the U-shaped frame, vertical strip-shaped holes are formed in positions opposite to the two air suction pipes on the front and rear sides of the U-shaped frame, and the ends away from each other of the two air suction pipes are respectively inserted through the corresponding strip-shaped holes, and the two connecting pipes are respectively connected between the air suction pump and the ends away from each other of the two air suction pipes.

[0010] Further, the bag opening straightening assembly comprises an electric sliding rail, an electric sliding block, a straightening rod, a third electric push rod and a second limiting rod.

[0011] The electric sliding rail is horizontally arranged on the top of the packaging bag, and the length direction of the electric sliding rail is the same as the running direction of the first conveying belt, the number of the electric sliding blocks is two, the two electric sliding blocks are symmetrically and slidingly mounted on the bottom of the electric sliding rail, the straightening rod is vertically and fixedly connected with the bottom of the electric sliding block, the third electric push rod is vertically and fixedly connected between the top of the electric sliding rail and the inner wall of the top of the U-shaped frame, and the number of the second limiting rods is two, the two second limiting rods are vertically and fixedly connected with the top of the electric sliding rail, and the top end of the second limiting rod is vertically and slidingly inserted through the top of the U-shaped frame.

[0012] Further, the bag opening pressing assembly comprises two second conveying belts, a U-shaped plate and an adjusting mechanism.

[0013] Two second conveying belts are vertically arranged, and the two second conveying belts are symmetrically arranged in front and back and close to each other, the conveying direction of the two second conveying belts facing one side is the same as the conveying direction of the top surface of the first conveying belt, and the side of the two second conveying belts close to the U-shaped frame is inclined away from each other, the U-shaped plate is fixedly connected between the top of the two second conveying belts, and the adjusting mechanism is connected to the top of the U-shaped plate and used for adjusting the height of the two second conveying belts.

[0014] Further, the adjusting mechanism comprises a mounting plate, an adjusting screw and two third limiting rods.

[0015] The mounting plate is horizontally fixedly connected to the side of the U-shaped frame close to the body of the bag sewing machine, the adjusting screw is vertically and threadedly inserted into the mounting plate, the bottom end of the adjusting screw is vertically rotatably connected to the top of the U-shaped plate, and the two third limiting rods are vertically and slidably inserted into the mounting plate, and the bottom end of the third limiting rod is fixedly connected to the top of the U-shaped plate.

[0016] Further, the body of the bag sewing machine is detachably mounted with a support, and the body of the bag sewing machine can change the position mounted on the support according to the height requirement.

[0017] Further, a control panel is mounted on the rear side of the U-shaped frame and used for controlling the electric equipment in the arrangement device.

[0018] Further, a sensor is mounted on the inner wall of the front side of the U-shaped frame, and when the sensor detects the packaging bag, the first conveying belt can be controlled to be paused.

[0019] Further, a protective rubber sleeve is sleeved on the tightening rod and used for protecting the bag opening when the tightening rod tightens the bag opening of the packaging bag.

[0020] Technical effects and advantages of the present application:

[0021] Compared with the existing sewing operation, the present application can automatically realize the arrangement, tightening and pressing operation before the bag opening of the packaging bag is sewn through the cooperation of the air suction pipe, the air suction assembly, the bag tightening assembly and the pressing assembly, so that the participation of manual work is avoided, the automatic sewing degree and the overall sewing efficiency are improved, and the bag opening of the packaging bag after pressing can be more accurately and uniformly sewn by the body of the bag sewing machine, thereby improving the sewing quality of the packaging bag. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the body of the bag sewing machine and the support in the present application;

[0024] Figure 3 This is a three-dimensional schematic diagram of the pressure port assembly in this invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the packaging bag and part of the sorting device in this invention;

[0026] Figure 5 This is the present invention. Figure 4 A three-dimensional schematic diagram of all structures except the packaging bag;

[0027] Figure 6 This is a three-dimensional schematic diagram of the fixed plate, suction pipe, first electric push rod and second electric push rod in this invention;

[0028] Figure 7 This is a three-dimensional schematic diagram of the bandage bag assembly in this invention.

[0029] In the diagram: 1. Sewing machine body; 2. First conveyor belt; 3. Packaging bag; 4. U-shaped frame; 5. Fixing plate; 6. Suction pipe; 7. First electric push rod; 8. Second electric push rod; 9. First limit rod; 10. Fixing strip; 11. Suction pump; 12. Connecting pipe; 13. Electric slide rail; 14. Electric slider; 15. Tensioning rod; 16. Third electric push rod; 17. Second limit rod; 18. Second conveyor belt; 19. U-shaped plate; 20. Mounting plate; 21. Adjusting screw; 22. Third limit rod; 23. Bracket; 24. Control panel; 25. Sensor; 26. Protective rubber sleeve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] This invention provides, for example Figures 1 to 7 The automatic bag sewing machine for production packaging shown includes a bag sewing machine body 1, a first conveyor belt 2 is provided on the front side of the bag sewing machine body 1, a packaging bag 3 containing a bag to be sewn is placed on the top of the first conveyor belt 2, and a sorting device is provided on one side of the bag sewing machine body 1. The sorting device includes a U-shaped frame 4, a fixing plate 5, a T-shaped air suction pipe 6, a first electric push rod 7, a second electric push rod 8, a first limit rod 9, an air suction assembly, a bag stretching assembly, and a sealing assembly.

[0032] The U-shaped frame 4 is detachably mounted on the top of the first conveying belt 2, the number of the fixing plates 5 is two, the two fixing plates 5 are symmetrically arranged on the front and rear inner walls of the U-shaped frame 4, the air suction pipes 6 are horizontally and slidingly inserted through the fixing plates 5, the length of the air suction pipes 6 is greater than the width of the packaging bag 3, the air suction openings of the two air suction pipes 6 are kept facing each other, and the air suction openings are horizontally designed as long strips, the first electric push rod 7 is vertically connected between the top of the fixing plate 5 and the top inner wall of the U-shaped frame 4, for driving the fixing plate 5 to move in the vertical direction, the second electric push rod 8 is horizontally connected between the top of the air suction pipe 6 and the fixing plate 5, for driving the air suction pipe 6 to move in the horizontal direction, the number of the first limiting rods 9 is two, the two first limiting rods 9 are both vertically and slidingly inserted through the top of the fixing plate 5, the top end of the first limiting rod 9 is fixedly connected with the top inner wall of the U-shaped frame 4, and the bottom ends of the two first limiting rods 9 are fixedly connected together with the U-shaped frame 4 through the same fixing strip 10, the air suction assembly is mounted on the top of the U-shaped frame 4, and the air suction assembly is connected with the air suction pipe 6, for enabling the two air suction pipes 6 to generate suction force, the bag tightening assembly is mounted on the top inner wall of the U-shaped frame 4, for straightening the bag opening of the packaging bag 3, the bag opening pressing assembly is arranged between the U-shaped frame 4 and the bag sewing machine body 1, for transmitting the tightened bag opening to the bag sewing machine body 1 for sewing operation, the bracket 23 is detachably mounted on the bag sewing machine body 1, and the bag sewing machine body 1 can change the position mounted on the bracket 23 according to the height requirement;

[0033] The air suction assembly comprises the air suction pump 11 and the two connecting pipes 12, the air suction pump 11 is mounted on the top of the U-shaped frame 4, the front and rear sides of the U-shaped frame 4 are both provided with vertical strip-shaped holes opposite to the two air suction pipes 6, and the ends of the two air suction pipes 6 away from each other are respectively inserted through the corresponding strip-shaped holes, the two connecting pipes 12 are respectively connected between the air suction pump 11 and the ends of the two air suction pipes 6 away from each other, the rear side of the U-shaped frame 4 is provided with the control panel 24, for controlling the electric devices in the arrangement device, and the front inner wall of the U-shaped frame 4 is provided with the inductor 25, which can control the first conveying belt 2 to pause when the inductor 25 detects the packaging bag 3;

[0034] Before the sewing operation of the packaging bag 3, the position of the bag sewing machine body 1 on the bracket 23 is adjusted, so as to ensure that the sewing position of the bag sewing machine body 1 matches the height of the bag opening, then the first electric push rod 7 and the second electric push rod 8 are adjusted through the control panel 24, so that the initial position of the air suction pipe 6 is lower than the top surface of the product in the packaging bag 3, and the minimum distance between the two air suction pipes 6 is equal to the thickness of the packaging bag 3 after containing the product;

[0035] When the adjustment is completed, after the product-filled packaging bag 3 is placed in the middle of the top of the first conveying belt 2 by the loading mechanism, the packaging bag 3 can be gradually moved to the position between the two suction pipes 6 under the driving of the first conveying belt 2, at this time, when the sensor 25 detects the packaging bag 3, the first conveying belt 2 stops, at this time, the two second electric push rods 8 can be synchronously elongated to drive the two suction pipes 6 to approach the front and back sides of the packaging bag 3 from the front and back directions, respectively, and when the two suction pipes 6 are attached to the front and back sides of the packaging bag 3 under the driving of the respective second electric push rods 8, the second electric push rods 8 stop elongating, at this time, the suction pump 11 can generate suction force on the suction pipes 6 through the connecting pipe 12, then, as the first electric push rod 7 is gradually shortened, the fixed plate 5 can be moved upward together with the suction pipes 6 under the pulling of the first electric push rod 7, in this process, the two suction pipes 6 can suck the front and back sides of the packaging bag 3, when the suction pipes 6 contact the bag opening part of the packaging bag 3 which is not filled with products, the suction force of the two suction pipes 6 on the front and back sides of the packaging bag 3 can make the front and back sides of the bag opening of the packaging bag 3 move in the direction away from each other, and as the suction pipes 6 move upward, the bag opening of the packaging bag 3 can also be completely unfolded under the upward pulling force of the two suction pipes 6, thereby avoiding the flat collapse of the bag opening of the packaging bag 3;

[0036] As the suction pipes 6 continue to move upward, when the two suction pipes 6 are completely separated from the bag opening, the bag tightening assembly can first be inserted into the bag opening, then the bag tightening assembly can perform a tightening operation on the two inner walls of the packaging bag 3 from the inside of the packaging bag 3, so that the bag opening of the packaging bag 3 presents a flat state, when the tightening operation is completed, the bag tightening assembly, the second electric push rod 8 and the first electric push rod 7 can be reset in turn quickly, thereby preparing for the next bag opening arrangement;

[0037] When the bag tightening assembly, the second electric push rod 8 and the first electric push rod 7 are reset, the first conveying belt 2 is started again, at this time, the packaging bag 3 can enter the bag opening pressing assembly under the action of the first conveying belt 2, so as to further press the bag opening of the packaging bag 3 by the bag opening pressing assembly, so that the bag opening of the packaging bag 3 presents a closed and flat state, then the packaging bag 3 after the bag opening pressing operation can be moved to the position of the sewing machine body 1 under the driving of the first conveying belt 2, finally the sewing machine body 1 can accurately sew the bag opening of the packaging bag 3;

[0038] Compared with the existing sewing operation, the present application can automatically realize the arrangement, tightening and pressing operation of the bag opening of the packaging bag 3 before sewing by the cooperation of the suction pipes 6, the suction assembly, the bag tightening assembly and the bag opening pressing assembly, thereby avoiding the participation of manual work, improving the automatic sewing degree and the overall sewing efficiency, and the bag opening of the packaging bag 3 after the bag opening pressing operation can be more accurately and uniformly sewn by the sewing machine body 1, thereby improving the sewing quality of the packaging bag 3.

[0039] As Figures 4 to 7 shown, the bag tightening assembly comprises an electric sliding rail 13, two electric sliding blocks 14, two tightening rods 15, a third electric push rod 16 and two second limiting rods 17; the electric sliding rail 13 is horizontally arranged at the top of the packaging bag 3, and the length direction of the electric sliding rail 13 is the same as the running direction of the first conveying belt 2; the two electric sliding blocks 14 are symmetrically and slidingly arranged at the bottom of the electric sliding rail 13; the two tightening rods 15 are vertically and fixedly connected to the bottom of the electric sliding blocks 14; the third electric push rod 16 is vertically and fixedly connected between the top of the electric sliding rail 13 and the inner wall of the top of the U-shaped frame 4; the two second limiting rods 17 are vertically and fixedly connected to the top of the electric sliding rail 13, and the top ends of the two second limiting rods 17 are vertically and slidingly inserted into the top of the U-shaped frame 4; the two tightening rods 15 are sleeved with protective rubber sleeves 26, which can play a certain buffering role on the bag opening when the two tightening rods 15 tighten the bag opening of the packaging bag 3, so as to avoid damage to the bag opening due to sudden tightening;

[0040] By arranging the bag tightening assembly, before use, the extension amount of the third electric push rod 16 is adjusted through the control panel 24 to ensure that the lower half of the tightening rod 15 can be inserted into the bag opening under the driving of the third electric push rod 16, and the maximum distance of the movement of the two electric sliding blocks 14 is adjusted to ensure that the maximum distance between the two electric sliding blocks 14 matches the width of the packaging bag 3 in the flat state;

[0041] After adjustment, after the two air suction pipes 6 perform the upward suction operation from the front and rear sides of the packaging bag 3, the bag opening of the packaging bag 3 is in a completely unfolded state, and then the third electric push rod 16 can be extended to drive the electric sliding rail 13 and the tightening rod 15 to move downward, when the third electric push rod 16 is extended downward to a predetermined value, the two tightening rods 15 can also be inserted into the bag opening of the packaging bag 3, and then the two electric sliding blocks 14 can drive the two tightening rods 15 to move in the direction away from each other, in this process, when the two tightening rods 15 respectively contact the inner walls of the two sides of the bag opening of the packaging bag 3, the two tightening rods 15 can gradually tighten the inner walls of the two sides of the packaging bag 3, and the front and rear sides of the bag opening of the packaging bag 3 can move towards each other, when the two electric sliding blocks 14 move to a set distance, the electric sliding blocks 14 stop moving, and at this time, the bag opening of the packaging bag 3 is in a flat state under the action of the two tightening rods 15, so that the bag opening of the packaging bag 3 can be more conveniently sewn by the sewing machine body 1 in the subsequent sewing process, and the sewing quality is improved;

[0042] Then the third electric push rod 16 and the two electric sliding blocks 14 can be reset in sequence, and with the upward reset of the third electric push rod 16, the two tension rods 15 can be pulled out of the bag opening of the packaging bag 3, and then with the continuous operation of the first conveying belt 2, the packaging bag 3 can move towards the direction close to the bag seaming machine body 1, thereby completing the subsequent seaming operation.

[0043] As shown in Figure 1 and Figure 3 , the bag opening pressing assembly comprises two second conveying belts 18, a U-shaped plate 19 and an adjusting mechanism;

[0044] The two second conveying belts 18 are vertically placed, and the two second conveying belts 18 are symmetrically arranged front and back, and the two second conveying belts 18 are close to each other, the conveying direction of the front side of the two second conveying belts 18 is the same as the conveying direction of the top surface of the first conveying belt 2, and the side of the two second conveying belts 18 close to the U-shaped frame 4 are inclined away from each other, the gap between the two second conveying belts 18, the two tension rods 15 and the seaming position of the bag seaming machine body 1 are in the same vertical plane, the rotating speed of the second conveying belt 18 is the same as that of the first conveying belt 2, the U-shaped plate 19 is fixedly connected between the top of the two second conveying belts 18, and the adjusting mechanism is connected to the top of the U-shaped plate 19, for adjusting the height of the two second conveying belts 18;

[0045] The adjusting mechanism comprises a mounting plate 20, an adjusting screw 21 and two third limiting rods 22; the mounting plate 20 is fixedly connected horizontally on the side of the U-shaped frame 4 close to the bag seaming machine body 1, the adjusting screw 21 is vertically screwed through and inserted on the mounting plate 20, the bottom end of the adjusting screw 21 is vertically rotatably connected to the top of the U-shaped plate 19, and the two third limiting rods 22 are vertically slidably inserted through the mounting plate 20, and the bottom end of the third limiting rod 22 is fixedly connected to the top of the U-shaped plate 19;

[0046] Before using the bag opening pressing assembly, first adjust the height of the second conveying belt 18 according to the height of the bag opening, and when adjusting, twist the adjusting screw 21, so that the U-shaped plate 19 can move in the vertical direction under the cooperation of the adjusting screw 21 and the two third limiting rods 22, when the top height of the second conveying belt 18 is slightly lower than the bag opening height of the packaging bag 3, stop twisting the adjusting screw 21, at this time the bag opening pressing assembly is adjusted;

[0047] When the bag opening of the packaging bag 3 passes through the tightening operation of the two tightening rods 15, the packaging bag 3 can be close to the two second conveying belts 18 under the action of the first conveying belt 2 as the tightening rods 15 are withdrawn from the bag opening. When the bag opening of the packaging bag 3 is in contact with the inclined section of the two second conveying belts 18, the bag opening can enter the area between the two second conveying belts 18 under the guidance of the inclined section of the two second conveying belts 18. Then, as the two second conveying belts 18 keep rotating synchronously with the first conveying belt 2, the two second conveying belts 18 can cooperate with each other and press the bag opening of the packaging bag 3, so that the bag opening of the packaging bag 3 presents a closed and flat state. Thus, when the packaging bag 3 after the pressing operation passes through the bag seaming machine body 1, the bag seaming machine body 1 can better and more uniformly perform the seaming operation on the bag opening of the packaging bag 3, thereby improving the seaming quality of the bag opening of the packaging bag 3.

[0048] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them.

Claims

1. A production packaging automatic bag seaming machine comprising a bag seaming machine body (1), characterized in that: The front side of the bag sewing machine body (1) is provided with a first conveying belt (2), the top of the first conveying belt (2) is placed with a packaging bag (3) to be sewn, one side of the bag sewing machine body (1) is provided with an arrangement device, the arrangement device comprises a U-shaped frame (4), a fixed plate (5), a T-shaped air suction pipe (6), a first electric push rod (7), a second electric push rod (8), a first limiting rod (9), an air suction assembly, a bag tightening assembly and a mouth pressing assembly; the U-shaped frame (4) is detachably installed on the top of the first conveying belt (2), the number of the fixed plate (5) is two, the two fixed plates (5) are symmetrically arranged on the front and rear inner walls of the U-shaped frame (4), the air suction pipe (6) is inserted into the fixed plate (5), the first electric push rod (7) is connected between the fixed plate (5) and the U-shaped frame (4), used for driving the fixed plate (5) to move in the vertical direction, the second electric push rod (8) is horizontally connected between the air suction pipe (6) and the top of the fixed plate (5), used for driving the air suction pipe (6) to move in the horizontal direction, the number of the first limiting rod (9) is two, the two first limiting rods (9) are both vertically and slidingly inserted into the fixed plate (5), the top end of the first limiting rod (9) is fixedly connected with the top inner wall of the U-shaped frame (4), the bottom ends of the two first limiting rods (9) are fixedly connected together with the U-shaped frame (4) through a same fixed strip (10), the air suction assembly is installed on the top of the U-shaped frame (4) and connected with the air suction pipe (6), the bag tightening assembly is installed on the top inner wall of the U-shaped frame (4) and used for straightening the bag opening of the packaging bag (3), the mouth pressing assembly is arranged between the U-shaped frame (4) and the bag sewing machine body (1) and used for pressing the straightened bag opening; The bag tightening assembly comprises an electric sliding rail (13), an electric sliding block (14), a tightening rod (15), a third electric push rod (16) and a second limiting rod (17); the electric sliding rail (13) is horizontally arranged on the top of the packaging bag (3), and the length direction of the electric sliding rail (13) is the same as the running direction of the first conveying belt (2), the number of the electric sliding block (14) is two, the two electric sliding blocks (14) are symmetrically and slidingly installed on the bottom of the electric sliding rail (13), the tightening rod (15) is vertically and fixedly connected with the bottom of the electric sliding block (14), the third electric push rod (16) is vertically and fixedly connected between the top of the electric sliding rail (13) and the top inner wall of the U-shaped frame (4), the number of the second limiting rod (17) is two, the two second limiting rods (17) are vertically and fixedly connected with the top of the electric sliding rail (13), and the top end of the second limiting rod (17) is vertically and slidingly inserted into the top of the U-shaped frame (4). The pressing opening assembly comprises two second conveying belts (18), a U-shaped plate (19) and an adjusting mechanism; the two second conveying belts (18) are vertically arranged, and the two second conveying belts (18) are symmetrically arranged in front and back and are close to each other, the conveying direction of the front side of the two second conveying belts (18) is the same as the conveying direction of the top surface of the first conveying belt (2), and the side of the two second conveying belts (18) close to the U-shaped frame (4) is inclined away from each other, the U-shaped plate (19) is fixedly connected between the top portions of the two second conveying belts (18), and the adjusting mechanism is connected to the top portion of the U-shaped plate (19) and is used for adjusting the height of the two second conveying belts (18).

2. The automatic bag sewing machine for production packaging according to claim 1, characterized in that: The air suction assembly comprises an air suction pump (11) and two connecting pipes (12), the air suction pump (11) is installed on the top of the U-shaped frame (4), vertical strip-shaped holes are formed in the positions of the front and back sides of the U-shaped frame (4) opposite to the two air suction pipes (6), and the ends of the two air suction pipes (6) away from each other are respectively inserted into the corresponding strip-shaped holes, and the two connecting pipes (12) are respectively connected between the air suction pump (11) and the ends of the two air suction pipes (6) away from each other.

3. The automatic bag sewing machine for producing a package according to claim 2, characterized by: The adjusting mechanism comprises a mounting plate (20), an adjusting screw (21) and two third limiting rods (22); the mounting plate (20) is horizontally fixedly connected to the side of the U-shaped frame (4) close to the bag seaming machine body (1), the adjusting screw (21) is vertically and threadedly inserted into the mounting plate (20), the bottom end of the adjusting screw (21) is vertically rotatably connected to the top of the U-shaped plate (19), and the two third limiting rods (22) are vertically and slidably inserted into the mounting plate (20), and the bottom end of the third limiting rod (22) is fixedly connected to the top of the U-shaped plate (19).

4. The automatic bag sewing machine for producing a package according to claim 3, characterized by: The bag seaming machine body (1) is detachably mounted with a support (23), and the bag seaming machine body (1) can change the position mounted on the support (23) according to the height requirement.

5. The automatic bag sewing machine for producing a package according to claim 4, characterized in that: A control panel (24) is mounted on the rear side of the U-shaped frame (4) and is used for controlling the electric equipment in the arrangement device.

6. The automatic bag sewing machine for producing packages according to claim 5, characterized in that: An inductor (25) is mounted on the inner wall of the front side of the U-shaped frame (4), and when the inductor (25) detects the packaging bag (3), the first conveying belt (2) can be controlled to be paused.

7. The automatic bag sewing machine for producing packages according to claim 6, characterized in that: A protective rubber sleeve (26) is sleeved on the tightening rod (15) and is used for protecting the bag opening when the tightening rod (15) tightens the bag opening of the packaging bag (3).

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