Edge folding and forming device for packaging bag

Abstract

The utility model provides a packaging bag edge folding forming device which comprises a motor fixing plate, a first motor driving mechanism, a second motor driving mechanism, a third motor driving mechanism, a first synchronous belt, a second synchronous belt, a third synchronous belt, a middle inserting plate set, an upper inserting plate set, a lower inserting plate set and a cam follower plate. The first motor driving mechanism drives the first synchronous belt to rotate, and finally the middle inserting plate sets get close to or away from each other. A second motor driving mechanism drives a second synchronous belt to rotate, and finally the upper inserting plate set and the lower inserting plate set get close to the middle or get away from the two sides. And the third motor driving mechanism drives the cam follower plate to move, so that the upper insertion plate body and the lower insertion plate body are close to the middle insertion plate body in the vertical direction to realize edge pressing. The folding and forming device for the packaging bag is highly mechanized, the stability and the consistency of folding edges on the two sides of a packaging and sealing position of a product are guaranteed, efficiency is improved, labor cost is reduced, and the sealing of the product becomes neat and firm.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery and equipment, and particularly relates to a bag edge folding and forming device. Background Art

[0002] In the prior art when producing packaging bags, the bag edge folding process is usually carried out by manually folding the bag mouth of the packaging bag and then placing the packaging bag on a hot pressing device for hot pressing and sealing. Due to manual edge folding, the bag mouth of the packaging bag sometimes is not aligned, resulting in poor aesthetics of the final hot pressing and sealing, and the bag mouth is also prone to automatically open. In addition, the efficiency of manual edge folding is also low.

[0003] In view of the above defects of the prior art, there is currently a need for a device that can ensure the stability and consistency of the edge folding on both sides of the product packaging sealing part, making the product sealing neat and firm. Summary of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a bag edge folding and forming device.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a bag edge folding and forming device, which is characterized by comprising: a motor fixing plate, a first motor driving mechanism, a second motor driving mechanism, a third motor driving mechanism, a first synchronous belt, a second synchronous belt, a third synchronous belt, a first slider, a second slider, a third slider, a vertical guide rail mechanism, an intermediate inserting plate group, an upper inserting plate group, a lower inserting plate group, and a cam follower plate. Among them, the first motor driving mechanism, the second motor driving mechanism, and the third motor driving mechanism are sequentially installed on the same side below the motor fixing plate; the first synchronous belt, the second synchronous belt, and the third synchronous belt are arranged in parallel, located above the motor fixing plate, and are respectively driven to rotate by the first motor driving mechanism, the second motor driving mechanism, and the third motor driving mechanism; there are two first sliders, which are respectively fixed to two parallel sides of the first synchronous belt; the intermediate inserting plate group is composed of two symmetrically arranged intermediate inserting plates on the left and right, and the two intermediate inserting plates are respectively fixed to the two first sliders; there are two second sliders, which are respectively fixed to two parallel sides of the second synchronous belt; there are two vertical guide rail mechanisms, which are respectively fixed to the two second sliders; the upper inserting plate group is composed of two symmetrically arranged upper inserting plates on the left and right, and the two upper inserting plates are respectively connected to the two vertical guide rail mechanisms; the lower inserting plate group is composed of two symmetrically arranged lower inserting plates on the left and right, and the two lower inserting plates are respectively connected to the two vertical guide rail mechanisms; there are two third sliders, which are respectively fixed to two parallel sides of the third synchronous belt; there are two cam follower plates, which are symmetrically arranged left and right, and are respectively fixed to the two third sliders; the upper inserting plate and the lower inserting plate on the same side are slidably connected to the cam follower plate on the same side.

[0007] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following characteristics: wherein each vertical guide rail mechanism includes: a guide rail fixing plate, a first vertical guide rail and a second vertical guide rail; the guide rail fixing plate is vertically arranged and fixed on the second slider; the first vertical guide rail and the second vertical guide rail are both fixed on the guide rail fixing plate; the first vertical slider is slidably connected to the first vertical guide rail, and the first vertical slider is fixedly connected to the upper plug plate; the second vertical slider is slidably connected to the second vertical guide rail, and the second vertical slider is fixedly connected to the lower plug plate.

[0008] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following characteristics: wherein, each cam follower plate is provided with a first guide groove and a second guide groove; the upper insert plate is connected and fixed with a first cam follower, and the first cam follower is slidably installed in the first guide groove; the lower insert plate is connected and fixed with a second cam follower, and the second cam follower is slidably installed in the second guide groove.

[0009] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following feature: wherein, the position of the first guide groove on the cam follower plate is higher than the second guide groove.

[0010] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following characteristics: wherein, the first motor drive mechanism, the second motor drive mechanism, and the third motor drive mechanism have the same structure, and all include a motor and a reducer connected to the motor.

[0011] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following characteristics: wherein, a driving pulley is installed on the output shaft of the reducer, the driving pulley is located on one side of the synchronous belt, and a driven pulley is arranged on the other side of the synchronous belt.

[0012] Furthermore, in the packaging bag folding and forming device provided by the utility model, it can also have the following characteristics: wherein, the upper surface of the motor fixing plate is installed with a first guide rail in the annular area formed by the first synchronous belt, the second guide rail is installed in the annular area formed by the second synchronous belt, and the third guide rail is installed in the annular area formed by the third synchronous belt; the first slider is slidably connected to the first guide rail; the second slider is slidably connected to the second guide rail; the third slider is slidably connected to the third guide rail.

[0013] Furthermore, in the bag edge folding and forming device provided by the present utility model, it is characterized in that it further includes: a mounting fixed plate, a fourth motor driving mechanism, a connecting block, and a third cam follower; wherein, the mounting fixed plate is located below the motor fixed plate; the fourth motor driving mechanism is installed below the mounting fixed plate; the connecting block is located above the mounting fixed plate, connected to the fourth motor driving mechanism and driven by the fourth motor driving mechanism to rotate; the third cam follower is fixed on the connecting block, and a guiding groove is formed on the lower surface of the motor fixed plate, and the third cam follower is slidably installed in the guiding groove.

[0014] Furthermore, in the bag edge folding and forming device provided by the present utility model, it can also have the following characteristics: wherein, a longitudinal guide rail is also installed and fixed on the upper surface of the mounting fixed plate; a longitudinal slider is also connected and fixed on the lower surface of the motor fixed plate, and the longitudinal slider is slidably installed on the longitudinal guide rail.

[0015] Furthermore, in the bag edge folding and forming device provided by the present utility model, it can also have the following characteristics: wherein, there are two longitudinal guide rails, respectively located on the left and right sides of the connecting block; there are two longitudinal sliders, respectively corresponding to the two longitudinal guide rails.

[0016] Functions and effects of the present utility model:

[0017] According to the bag edge folding and forming device of the present utility model, it can be known that all the edge folding movements are controlled by motors, with higher precision: the first motor driving mechanism drives the first synchronous belt to rotate, and finally the intermediate plug board group can move closer to or away from each other along the direction of the first guide rail; the second motor driving mechanism drives the second synchronous belt to rotate, and finally the upper plug board group and the lower plug board group can move along the direction of the second guide rail, move closer to the middle or move away from both sides; the third motor driving mechanism drives the cam follower plate to move, so that the upper plug board body and the lower plug board body move closer to the intermediate plug board body in the vertical direction to achieve pressing and folding the edge; the fourth motor driving mechanism drives the motor fixed plate to move forward or backward. The bag edge folding and forming device of the present utility model enables the edge folding operation to be realized through mechanical automation, ensures the stability and consistency of the two-sided edge folding at the product packaging sealing part, improves the efficiency, reduces the labor cost, makes the product sealing neat and firm, and the width of the edge folding component can be adjusted to meet the edge folding requirements of packaging bags with different width dimensions. Description of the drawings

[0018] Figure 1 is the overall structural schematic diagram of the bag edge folding and forming device in the embodiment of the present utility model;

[0019] Figure 2 is the installation schematic diagram of the first motor driving mechanism, the first synchronous belt, the first slider, and the intermediate plug board group in the embodiment of the present utility model;

[0020] Figure 3 It is a schematic installation diagram of the first slider in the embodiment of the present utility model;

[0021] Figure 4 It is a schematic installation diagram of the second motor driving mechanism, the third motor driving mechanism, the second slider, the third slider, the upper insertion plate group, and the lower insertion plate group in the embodiment of the present utility model;

[0022] Figure 5 It is a side schematic diagram of the upper insertion plate group, the lower insertion plate group, and the cam follower plate.

[0023] Figure 6 It is a schematic installation diagram of the third slider, the cam follower plate, the first cam follower, and the second cam follower in the embodiment of the present utility model;

[0024] Figure 7 It is a schematic installation diagram of the fourth motor driving mechanism, the third cam follower, the longitudinal guide rail, and the longitudinal slider in the embodiment of the present utility model.

[0025] Markings in the figure: 1 motor fixing plate; 1a guide groove; 2 installation fixing plate; 3 first motor driving mechanism; 3a motor; 3b speed reducer; 4 second motor driving mechanism; 5 third motor driving mechanism; 6 fourth motor driving mechanism; 6a motor; 6b speed reducer; 7 first synchronous belt; 8 second synchronous belt; 9 third synchronous belt; 10 first slider; 11 second slider; 12 third slider; 13 vertical guide rail mechanism; 13a guide rail fixing plate; 13b first vertical guide rail; 13c second vertical guide rail; 13d first vertical slider; 13e second vertical slider; 14 intermediate insertion plate group; 14a insertion plate body; 14b vertical plate; 14c support; 15 upper insertion plate group; 15a insertion plate body; 15b vertical plate; 16 lower insertion plate group; 16a insertion plate body; 16b vertical plate; 17 cam follower plate; 17a first guide groove; 17b second guide groove; 18 first guide rail; 19 second guide rail; 20 third guide rail; 21 first cam follower; 22 second cam follower; 23 third cam follower; 24 driving pulley; 25 driven pulley; 26 driven rotating shaft; 27 bearing; 28 connecting block; 29 longitudinal guide rail; 30 longitudinal slider; slider connecting plate 31. Specific embodiments

[0026] In order to make the technical means, creative features, achieved purposes, and functions realized by the present utility model easy to understand, the following embodiments will specifically elaborate on the technical solutions of the present utility model in conjunction with the accompanying drawings.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence.

[0028] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0029] like Figure 1 As shown, in an embodiment of the utility model, a packaging bag folding and forming device is provided, which includes: a motor fixing plate 1, a first motor drive mechanism 3, a second motor drive mechanism 4, a third motor drive mechanism 5, a fourth motor drive mechanism 6, a first synchronous belt 7, a second synchronous belt 8, a third synchronous belt 9, a vertical guide rail mechanism 13, an intermediate plug plate group 14, an upper plug plate group 15, and a lower plug plate group 16.

[0030] The first motor drive mechanism 3, the second motor drive mechanism 4, and the third motor drive mechanism 5 are sequentially installed on the same side below the motor fixing plate 1. The first synchronous belt 7, the second synchronous belt 8, and the third synchronous belt 9 are arranged in parallel and are located above the motor fixing plate 1. The first synchronous belt 7 is driven to rotate by the first motor drive mechanism 3, the second synchronous belt 8 is driven to rotate by the second motor drive mechanism 4, and the third synchronous belt 9 is driven to rotate by the third motor drive mechanism 5. The first motor drive mechanism 3, the second motor drive mechanism 4, and the third motor drive mechanism 5 have the same structure, and all include a motor and a reducer connected to the motor. Figure 2 , the figure shows the motor 3a and the reducer 3b of the first motor drive mechanism 3, the output shaft of the reducer 3b is installed with a driving pulley 24, the driving pulley 24 is located on one side of the synchronous belt 7, and the other side of the synchronous belt 7 is provided with a driven pulley 25, the driven pulley 25 is installed on the driven shaft 26, the driven shaft 26 is installed in the bearing 27, and the bearing 27 is fixed on the motor fixing plate 1. The second motor drive mechanism 4 drives the second synchronous belt 8, and the third motor drive mechanism 5 drives the third synchronous belt 9. Its structure and working principle are the same as the form of the first motor driving the first synchronous belt 7, which will not be repeated here.

[0031] See also Figure 3 A first guide rail 18 is installed on the upper surface of the motor fixing plate 1 in the annular area formed by the first synchronous belt 7, a second guide rail 19 is installed in the annular area formed by the second synchronous belt 8, and a third guide rail 20 is installed in the annular area formed by the third synchronous belt 9.

[0032] The middle plug plate group 14 is driven by the first synchronous belt 7 to move left and right. Figure 2 and Figure 3, there are two first sliders 10. The first sliders 10 are slidably connected to the first guide rails 18, and the two first sliders 10 are respectively fixed to two parallel sides of the first synchronous belt 7. The first sliders are fixed to the first synchronous belt by bolt connection through slider connection plates 31 and bolts. The intermediate insertion plate group 14 consists of two intermediate insertion plates that are symmetric about the left and right. The two intermediate insertion plates are respectively fixed to the two first sliders 10. Refer to Figure 2 , each intermediate insertion plate is composed of an insertion plate body 14a, a vertical plate 14b, and a support 14c. The insertion plate body 14a is bolted to the vertical plate 14b, the vertical plate 14b is bolted to the support 14c, and the support 14c is bolted and fixed to the first slider 10. Refer to Figure 2 and Figure 3 , when the first synchronous belt 7 rotates clockwise, the left first slider 10 will move to the right, and the right first slider 10 will move to the left, and the two will approach each other. Conversely, they will move away from each other.

[0033] The upper insertion plate group 15 and the lower insertion plate group 16 are driven by the second synchronous belt 8 to move left and right. The upper insertion plate group 15 and the lower insertion plate group 16 are driven by the third synchronous belt 9 to move up and down, so that the upper insertion plate group 15 and the lower insertion plate group 16 approach each other.

[0034] Refer to Figure 4 , the upper insertion plate group 15 consists of two upper insertion plates that are symmetric about the left and right. Each upper insertion plate is composed of an insertion plate body 15a and a vertical plate 15b. The lower insertion plate group 16 consists of two lower insertion plates that are symmetric about the left and right. Each lower insertion plate is composed of an insertion plate body 16a and a vertical plate 16b.

[0035] Refer to Figure 4 , there are two second sliders 11. The second sliders 11 are slidably connected to the second guide rails 19, and the two second sliders 11 are respectively fixed to two parallel sides of the second synchronous belt 8. There are two third sliders 12. The third sliders 12 are slidably connected to the third guide rails 20, and the two third sliders 12 are respectively fixed to two parallel sides of the third synchronous belt 9. The second sliders 11 are connected to the second synchronous belt 8, and the third sliders 12 are connected to the third synchronous belt 9. Their connection methods and working principles are the same as those of the first sliders 10 connected to the first synchronous belt 7, and will not be elaborated here.

[0036] Refer to Figure 1 、 Figure 4 and Figure 5, there are two vertical guide rail mechanisms 13, which are respectively arranged on two second sliders 11. Each vertical guide rail mechanism 13 includes: a guide rail fixing plate 13a, a first vertical guide rail 13b, and a second vertical guide rail 13c. The guide rail fixing plate 13a is vertically arranged and fixed on the second slider 11. The first vertical guide rail 13b and the second vertical guide rail 13c are both fixed on the guide rail fixing plate. A first vertical slider 13d is slidably connected to the first vertical guide rail 13b, and the first vertical slider 13d is fixedly connected to the vertical plate 15b of the upper insertion plate. A second vertical slider 13e is slidably connected to the second vertical guide rail 13c, and the second vertical slider 13e is fixedly connected to the vertical plate 16b of the lower insertion plate. When the second synchronous belt 8 rotates, it will drive the two second sliders 11 to approach or move away from each other, and the vertical guide rail mechanisms 13 fixed on the two second sliders 11 will move accordingly. Therefore, the upper insertion plate group 15 and the lower insertion plate group 16 connected thereto will also move accordingly.

[0037] Refer to Figures 4 to 6 , there are two cam follower plates 17, which are symmetrically arranged left and right and are respectively fixed on two third sliders 12. Each cam follower plate 17 is provided with an inclined first guide groove 17a and a second guide groove 17b. The position of the first guide groove 17a on the cam follower plate 17 is higher than that of the second guide groove 17b. A first cam follower 21 is fixedly connected to the vertical plate 15b of the upper insertion plate, and the first cam follower 21 is slidably installed in the first guide groove 17a. A second cam follower 22 is fixedly connected to the vertical plate 16b of the lower insertion plate, and the second cam follower 22 is slidably installed in the second guide groove 17b. Therefore, the upper and lower insertion plates on the same side and the cam follower plate 17 on the same side form a sliding connection. When the third synchronous belt 9 rotates to drive the two third sliders 12 to approach each other, the first cam follower 21 slides downward in the first guide groove 17a, causing the upper insertion plate to move downward; at the same time, the second cam follower 22 slides upward in the third guide groove 17b, causing the lower insertion plate to move upward; the insertion plate body of the upper insertion plate and the insertion plate body of the lower insertion plate approach each other, and at this time, the folded edge of the packaging bag located in the middle insertion plate will be pressed, and the folded edge forming is completed.

[0038] Refer to Figure 1 and Figure 7 , in the packaging bag folded edge forming device of the embodiment of the present utility model, there is an installation fixing plate 2. The installation fixing plate 2 serves as the base plate of the packaging bag folded edge forming device. In actual application, the entire device can be installed and fixed to the frame of relevant equipment on the production line through the installation fixing plate 2. The installation fixing plate 2 and the motor fixing plate 1 form a sliding relationship, and the motor fixing plate 1 can move back and forth relative to the installation fixing plate 2. The specific installation situation is as follows:

[0039] The mounting fixed plate 2 is located below the motor fixed plate 1. The fourth motor driving mechanism 6 is mounted below the mounting fixed plate 2. The fourth motor driving mechanism 6 includes a motor 6a and a speed reducer 6b connected to the motor 6a. The connecting block 28 is located above the mounting fixed plate 2 and is connected to the output end of the speed reducer 6b. The connecting block 28 is driven by the fourth motor driving mechanism 6 to rotate. A guiding groove 1a is formed on the lower surface of the motor fixed plate 1. The third cam follower 23 is fixed on the connecting block 28 and is slidably mounted in the guiding groove 1a. A longitudinal guide rail 29 is also fixedly mounted on the upper surface of the mounting fixed plate 2. The lower surface of the motor fixed plate 1 is also fixedly connected with a longitudinal slider 30. The longitudinal slider 30 is slidably mounted on the longitudinal guide rail 29. There are two longitudinal guide rails 29, which are respectively located on the left and right sides of the connecting block 28, and the two longitudinal sliders 30 are respectively mounted corresponding to the two longitudinal guide rails 29.

[0040] The working condition of the bag edge folding and forming device according to the embodiment of the present invention is as follows:

[0041] The first motor driving mechanism 3 drives the first synchronous belt 7 to rotate, and finally realizes the mutual approach or separation of the intermediate inserting plate group 14 along the direction of the first guide rail. The second motor driving mechanism 4 drives the second synchronous belt 8 to rotate, and finally realizes the movement of the upper inserting plate group 15 and the lower inserting plate group 16 along the direction of the second guide rail, approaching the middle or moving away from both sides. The third motor driving mechanism 5 drives the cam follower plate 17 to move, so that the upper inserting plate body and the lower inserting plate body approach the middle inserting plate body in the vertical direction to realize pressing and folding the edge. After the edge folding and forming is completed, the upper and lower inserting plates are loosened. The fourth motor driving mechanism 6 drives the third cam follower 23 to move in the guiding groove 1a, and at the same time the longitudinal slider 30 slides on the longitudinal guide rail 29, and finally realizes the forward or backward movement of the motor fixed plate 1.

[0042] The above embodiments are only the preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A bag packaging hemming and forming device, characterized in that, include: Motor fixing plate, first motor drive mechanism, second motor drive mechanism, third motor drive mechanism, first synchronous belt, second synchronous belt, third synchronous belt, first slider, second slider, third slider, vertical guide rail mechanism, middle plug plate group, upper plug plate group, lower plug plate group, cam follower plate, Wherein, the first motor drive mechanism, the second motor drive mechanism, and the third motor drive mechanism are sequentially installed on the same side below the motor fixing plate; The first synchronous belt, the second synchronous belt, and the third synchronous belt are arranged in parallel, are located above the motor fixing plate, and are driven to rotate by the first motor drive mechanism, the second motor drive mechanism, and the third motor drive mechanism respectively; There are two first sliding blocks, which are respectively fixed to two parallel sides of the first synchronous belt; The intermediate plug plate group is composed of two intermediate plug plates that are symmetrical on both sides, and the two intermediate plug plates are respectively fixed on the two first sliding blocks; There are two second sliding blocks, which are respectively fixed to two parallel sides of the second synchronous belt; There are two vertical guide rail mechanisms, which are respectively fixed on the two second sliding blocks; The upper plug plate group is composed of two upper plug plates that are symmetrical to each other, and the two upper plug plates are respectively connected to the two vertical guide rail mechanisms; The lower plug plate group is composed of two lower plug plates that are symmetrical to each other, and the two lower plug plates are respectively connected to the two vertical guide rail mechanisms; There are two third sliding blocks, which are respectively fixed to two parallel sides of the third synchronous belt; There are two cam follower plates, which are symmetrically arranged on both sides and are respectively fixed on the two third sliding blocks; The upper insert plate and the lower insert plate on the same side are slidably connected to the cam follower plate on the same side.

2. The bag edge folding and forming device according to claim 1, Features: in, Each of the vertical guide rail mechanisms comprises: a guide rail fixing plate, a first vertical guide rail and a second vertical guide rail; The guide rail fixing plate is vertically arranged and fixed on the second sliding block; The first vertical guide rail and the second vertical guide rail are both fixed to the guide rail fixing plate; A first vertical slider is slidably connected to the first vertical guide rail, and the first vertical slider is fixedly connected to the upper plugboard; A second vertical sliding block is slidably connected to the second vertical guide rail, and the second vertical sliding block is fixedly connected to the lower plug board.

3. The packaging bag folding and forming device according to claim 2, characterized in that: Among them, Each of the cam follower plates is provided with a first guide groove and a second guide groove; The upper plug plate is connected and fixed with a first cam follower, and the first cam follower is slidably installed in the first guide groove; The lower plug plate is connected and fixed with a second cam follower, and the second cam follower is slidably installed in the second guide groove.

4. The packaging bag folding and forming device according to claim 3, characterized in that: Among them, The first guide groove is located higher on the cam follower plate than the second guide groove.

5. The packaging bag folding and forming device according to claim 1, characterized in that: Among them, The first motor drive mechanism, the second motor drive mechanism and the third motor drive mechanism have the same structure, and all include a motor and a reducer drivingly connected to the motor.

6. The bag packaging hemming forming device according to claim 5, characterized in that: Among them, A driving pulley is installed on the output shaft of the speed reducer, the driving pulley is located on one side of the synchronous belt, and a driven pulley is arranged on the other side of the synchronous belt.

7. The bag packaging hemming forming device according to claim 1, characterized in that: Among them, A first guide rail is installed on the upper surface of the motor fixing plate in the annular area formed by the first synchronous belt, a second guide rail is installed in the annular area formed by the second synchronous belt, and a third guide rail is installed in the annular area formed by the third synchronous belt; The first slider is slidably connected with the first guide rail; The second slider is slidably connected with the second guide rail; The third slider is slidably connected with the third guide rail.

8. The bag edge folding and forming device according to claim 1, wherein It further includes: An installation fixing plate, a fourth motor driving mechanism, a connecting block, and a third cam follower; Among them, the installation fixing plate is located below the motor fixing plate; The fourth motor driving mechanism is installed below the installation fixing plate; The connecting block is located above the installation fixing plate, is connected with the fourth motor driving mechanism and is driven to rotate by the fourth motor driving mechanism; The third cam follower is fixed on the connecting block, and a guide groove is formed on the lower surface of the motor fixing plate, and the third cam follower is slidably installed in the guide groove.

9. The bag packaging hemming forming device according to claim 8, characterized in that: Among them, A longitudinal guide rail is further installed and fixed on the upper surface of the installation fixing plate; A longitudinal slider is further connected and fixed to the lower surface of the motor fixing plate, The longitudinal slider is slidably installed on the longitudinal guide rail.

10. The bag packaging hemming forming device according to claim 9, characterized in that: Among them, There are two longitudinal guide rails, which are respectively located on the left and right sides of the connecting block; There are two longitudinal sliders, which are respectively arranged corresponding to the two longitudinal guide rails.

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