Bag drawing device for a bag making machine

Abstract

The utility model provides a kind of for bag making machine's bag pulling device, it is related to bag making machine field, and it includes: processing box, the inside two sides of processing box are symmetrically fixedly connected with protective shell, the inside of processing box is provided with bag pulling mechanism, the both ends of bag pulling mechanism are correspondingly rotatably connected with each protective shell, transmission assembly is provided with two, two transmission assemblies are movably arranged at the both ends of bag pulling mechanism respectively, the one end of each transmission assembly is rotatably connected between each protective shell, and the outer wall of transmission assembly is fixedly connected with second bag pulling roller;The scheme, start drive mechanism is driven bag pulling mechanism rotation by multiple second spur gears, the bag body at the bottom of bag pulling mechanism can be transported, while bag pulling mechanism is running, the transmission assembly of both ends can drive two second bag pulling rollers to rotate, the both sides of bag body are applied to certain traction force to outside by the rotation of two second bag pulling rollers, so that it can prevent bag body from appearing wrinkle condition or smooth the bag body of wrinkle.

Description

Technical Field

[0001] This utility model relates to the field of bag making machines, and in particular to a bag pulling device for bag making machines. Background Technology

[0002] The core workflow of a bag-making machine encompasses stages such as substrate unwinding, conveying, printing, heat sealing, cutting, punching, and finished product rewinding. It is an automated device specifically designed to process flexible substrates such as plastic film, paper, and non-woven fabric into various types of packaging bags. Bag-making machines can be categorized into plastic bag-making machines, paper-plastic composite bag-making machines, and non-woven fabric bag-making machines. During the operation of a bag-making machine, a bag-pulling device is typically used to convey the bag body.

[0003] In related technologies, during the operation of a bag-making machine, the bag-pulling device mainly uses a pre-set speed and stroke to transport the bag blank or packaging substrate to the next process to ensure smooth connection between processes. Traditional bag-pulling devices usually include a drive mechanism, a transmission component, and a traction component. In use, the drive mechanism provides power, which drives the traction component through the transmission component. The traction component is in direct contact with the bag body, so the movement and transport of the bag body can be controlled by the operation of the traction component. However, during the process of transporting the bag body through the traction component, the bag body may develop wrinkles, which may affect subsequent processing.

[0004] Therefore, it is necessary to provide a bag-pulling device for a bag-making machine to solve the above problems. Utility Model Content

[0005] To address the technical problem that bags may wrinkle during the conveying process via traction components, potentially affecting subsequent processing, this invention provides a bag-pulling device for a bag-making machine.

[0006] This utility model provides a bag-pulling device for a bag-making machine, comprising: a processing box, with protective shells symmetrically fixedly connected to both sides of the processing box; a bag-pulling mechanism disposed inside the processing box, with both ends of the bag-pulling mechanism rotatably connected to each of the protective shells; two transmission components, each movably disposed at both ends of the bag-pulling mechanism, with one end of each transmission component rotatably connected to each of the protective shells; a second bag-pulling roller fixedly connected to the outer wall of the transmission components; a drive mechanism; and a second spur gear. The drive mechanism is disposed on the processing box, and multiple second spur gears are disposed, each fixedly disposed on the bag-pulling mechanism. The bottom of the drive mechanism meshes with the multiple second spur gears.

[0007] Preferably, the bottom of the inner wall of the processing box is provided with a storage groove, and multiple third bag-pulling rollers located inside the storage groove are uniformly rotatably connected inside the processing box.

[0008] Preferably, a viewing opening is provided on one side of the processing box, and a transparent protective plate is provided inside the viewing opening.

[0009] Preferably, an anti-slip pad is fixedly connected to the outer wall of the second bag-pulling roller.

[0010] Preferably, the bag-pulling mechanism includes a first shaft, the outer walls of both ends of the first shaft are rotatably connected to the two protective shells respectively, the inner walls of a plurality of second spur gears are fixedly connected to the outer walls of the first shaft, a first bevel gear is fixedly connected to both ends of the first shaft, each first bevel gear is located inside each of the protective shells, and a plurality of first bag-pulling rollers are uniformly fixedly connected to the outer wall of the first shaft, with each first bag-pulling roller and each second spur gear being spaced apart.

[0011] Preferably, the driving mechanism includes a motor, one side of which is fixedly connected to one side of the processing box. The output end of the motor passes through the processing box and is fixedly connected to a third shaft. The end of the third shaft away from the motor is rotatably connected to the inner wall of the processing box. A plurality of first spur gears are uniformly fixedly connected to the outer wall of the third shaft, and each first spur gear meshes with each second spur gear.

[0012] Preferably, the transmission assembly includes a second shaft, one end of which is fixedly connected to the inner wall of the second bag-pulling roller, and the other end of which is fixedly connected to a second bevel gear through the protective shell, the outer wall of the second bevel gear meshing with the outer wall of the first bevel gear.

[0013] Compared with related technologies, the bag-pulling device for a bag-making machine provided by this utility model has the following beneficial effects:

[0014] 1. This bag-pulling device for a bag-making machine can prevent or smooth out wrinkles in the bag: the processing box restricts the installation positions of the two protective shells and the drive mechanism; the symmetrically arranged protective shells restrict the installation positions of the bag-pulling mechanism and the transmission components; the bag-pulling mechanism restricts the installation positions of multiple second spur gears; and the transmission components restrict the installation positions of the second bag-pulling rollers. Starting the drive mechanism drives the bag-pulling mechanism to rotate via the multiple second spur gears, thus conveying the bag at the bottom of the bag-pulling mechanism. Simultaneously, the transmission components at both ends drive the two second bag-pulling rollers to rotate. The rotation of the two second bag-pulling rollers applies a certain traction force to both sides of the bag, preventing or smoothing out wrinkles and ensuring the smooth progress of subsequent processing steps.

[0015] 2. The bag-pulling device for the bag-making machine is equipped with a third bag-pulling roller that can rotate with the movement of the bag, thereby improving the conveying effect of the bag. Personnel can check the conveying status of the bag through the transparent protective plate installed inside the viewing port. The anti-slip pad can increase the friction between the second bag-pulling roller and the bag, and improve the smoothing effect of bag wrinkles.

[0016] 3. The bag-pulling device for the bag-making machine has a motor that drives the third shaft to rotate, which in turn controls the rotation of multiple first spur gears. The rotation of the first spur gears drives the rotation of the second spur gears. When the second spur gears rotate, they drive the first bevel gears at both ends and the multiple first bag-pulling rollers on the outer wall to rotate. The rotation of the multiple first bag-pulling rollers can transport the bag body. The second bevel gears cooperate with the rotating first bevel gears to drive the rotation of the second shaft. The rotation of the second shaft can drive the rotation of the second bag-pulling rollers. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural schematic diagram provided for this utility model;

[0019] Figure 3 A top view structural schematic diagram of the bag-pulling mechanism provided by this utility model;

[0020] Figure 4 A schematic diagram of the drive mechanism provided by this utility model.

[0021] Labels in the diagram: 1. Processing box; 2. Protective shell; 3. Bag pulling mechanism; 301. First shaft; 302. First bevel gear; 303. First bag pulling roller; 4. Transmission assembly; 401. Second shaft; 402. Second bevel gear; 5. Second bag pulling roller; 6. Drive mechanism; 601. Motor; 602. Third shaft; 603. First spur gear; 7. Second spur gear; 8. Storage slot; 9. Third bag pulling roller; 10. Viewing port; 11. Transparent protective plate; 12. Anti-slip mat. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figures 1 to 4 A bag-pulling device for a bag-making machine includes: a processing box 1, with protective shells 2 symmetrically fixedly connected to both sides of the interior of the processing box 1; a bag-pulling mechanism 3 is provided inside the processing box 1, with both ends of the bag-pulling mechanism 3 rotatably connected to each protective shell 2; two transmission components 4 are provided, each movably disposed at both ends of the bag-pulling mechanism 3, with one end of each transmission component 4 rotatably connected to each protective shell 2; a second bag-pulling roller 5 is fixedly connected to the outer wall of the transmission component 4; a drive mechanism 6 and a second spur gear 7 are provided; the drive mechanism 6 is disposed on the processing box 1; multiple second spur gears 7 are provided, and multiple second spur gears 7 are fixedly disposed on the bag-pulling mechanism 3; the bottom of the drive mechanism 6 meshes with the multiple second spur gears 7.

[0024] In the specific implementation process, the processing box 1 in the bag-pulling device of the bag-making machine can restrict the installation positions of the two protective shells 2 and the drive mechanism 6. The symmetrically arranged protective shells 2 can restrict the installation positions of the bag-pulling mechanism 3 and the transmission assembly 4, and can also protect the connection between the bag-pulling mechanism 3 and the transmission assembly 4. By restricting the bag-pulling mechanism 3, the installation positions of multiple second spur gears 7 can be restricted. The installation positions of the second bag-pulling rollers 5 can be restricted by the transmission assembly 4. The bottom of the drive mechanism 6 meshes with the multiple second spur gears 7. The bag-pulling mechanism 3 and the second bag-pulling rollers 5 are both located above the conveyed bag and are in direct contact with the bag. Specifically, the drive motor is started. The mechanism 6 can drive multiple second spur gears 7 to rotate. The rotation of the multiple second spur gears 7 can control the rotation of the bag-pulling mechanism 3. The rotation of the bag-pulling mechanism 3 can transport the bag at the bottom. Furthermore, while the bag-pulling mechanism 3 is running, it can drive the transmission components 4 at both ends to rotate. The rotation of the transmission components 4 can drive the second bag-pulling rollers 5 to rotate. The two second bag-pulling rollers 5 are symmetrically arranged in a figure-eight shape and press on both sides of the bag. The rotation of the two second bag-pulling rollers 5 can apply a certain traction force to the two sides of the bag to the outside, thereby preventing the bag from wrinkling or smoothing out the wrinkles, so as to ensure the smooth progress of subsequent processing steps.

[0025] See Figure 2 As shown, a storage groove 8 is provided at the bottom of the inner wall of the processing box 1, and multiple third bag-pulling rollers 9 located inside the storage groove 8 are uniformly rotatably connected inside the processing box 1.

[0026] In the specific implementation process, the installation position of multiple third bag-pulling rollers 9 can be restricted by the opening of the storage groove 8. The set third bag-pulling rollers 9 can rotate with the movement of the bag body, thereby improving the conveying effect of the bag body.

[0027] Specifically, it should be noted that the multiple third bag-pulling rollers 9 can be replaced with belt conveyors as needed.

[0028] See Figure 1 As shown, a viewing port 10 is provided on one side of the processing box 1, and a transparent protective plate 11 is provided inside the viewing port 10.

[0029] In the specific implementation process, the viewing port 10 can restrict the installation position of the transparent protective plate 11, and personnel can observe the conveying of the bag through the transparent protective plate 11.

[0030] See Figure 2 and Figure 3 As shown, an anti-slip pad 12 is fixedly connected to the outer wall of the second bag-pulling roller 5.

[0031] In the specific implementation process, the anti-slip pad 12 can increase the friction between the second bag-pulling roller 5 and the bag body, thereby improving the smoothing effect on the bag body wrinkles.

[0032] See Figure 2 and Figure 3 As shown, the bag-pulling mechanism 3 includes a first shaft 301. The outer walls of both ends of the first shaft 301 are rotatably connected to two protective shells 2 respectively. The inner walls of multiple second spur gears 7 are fixedly connected to the outer walls of the first shaft 301. A first bevel gear 302 is fixedly connected to both ends of the first shaft 301. Each first bevel gear 302 is located inside each protective shell 2. Multiple first bag-pulling rollers 303 are uniformly fixedly connected to the outer wall of the first shaft 301. Each first bag-pulling roller 303 is spaced apart from each second spur gear 7.

[0033] In the specific implementation process, when the second spur gear 7 rotates, it can drive the first bevel gears 302 at both ends and the multiple first bag-pulling rollers 303 on the outer wall to rotate. The bag body can be conveyed by the rotation of the multiple first bag-pulling rollers 303.

[0034] See Figure 1 , Figure 2 and Figure 4 As shown, the drive mechanism 6 includes a motor 601. One side of the motor 601 is fixedly connected to one side of the processing box 1. The output end of the motor 601 passes through the processing box 1 and is fixedly connected to a third shaft 602. The end of the third shaft 602 away from the motor 601 is rotatably connected to the inner wall of the processing box 1. A plurality of first spur gears 603 are uniformly fixedly connected to the outer wall of the third shaft 602. Each first spur gear 603 meshes with each second spur gear 7.

[0035] In the specific implementation process, the starter motor 601 can control the rotation of multiple first spur gears 603 by driving the third shaft 602 to rotate, and the rotation of the first spur gears 603 can drive the second spur gear 7 meshing with them to rotate.

[0036] Specifically, it should be noted that the motor 601 is a device with relatively mature existing technology. The specific model can be selected according to actual needs. The power supply can be the built-in power supply or the mains power supply. The specific power supply method should be selected according to the situation.

[0037] See Figure 2 and Figure 3 As shown, the transmission assembly 4 includes a second shaft 401. One end of the outer wall of the second shaft 401 is fixedly connected to the inner wall of the second bag-pulling roller 5. The other end of the second shaft 401 is fixedly connected to a second bevel gear 402 through the protective shell 2. The outer wall of the second bevel gear 402 meshes with the outer wall of the first bevel gear 302.

[0038] In the specific implementation process, the second bevel gear 402 cooperates with the rotating first bevel gear 302, which can drive the second shaft 401 to rotate. The rotation of the second shaft 401 can drive the second bag roller 5 to rotate.

[0039] The working principle of the bag-pulling device for a bag-making machine provided by this utility model is as follows:

[0040] When the bag-pulling device for the bag-making machine is working, the starting motor 601 drives the third shaft 602 to rotate, causing multiple first spur gears 603 evenly fixed on the outer wall of the third shaft 602 to rotate. The first spur gears 603 mesh with multiple second spur gears 7 fixed on the outer wall of the first shaft 301, driving the second spur gears 7 to rotate, which in turn drives the first shaft 301 to rotate. When the first shaft 301 rotates, the first bevel gears 302 at both ends rotate accordingly. At the same time, the first bag-pulling rollers 303 on the outer wall of the first shaft 301 rotate to convey the bottom bag body. The first bevel gears 302 mesh with the second bevel gears 402 at one end of the second shaft 401, driving the second shaft 401 to rotate, causing the second bag-pulling rollers 5 fixed at the other end of the second shaft 401 to rotate. The two second bag-pulling rollers 5 are symmetrically arranged in a figure-eight shape and press against both sides of the bag body. When rotating, they apply traction force from both sides to the outside to prevent the bag body from wrinkling or to smooth out wrinkles.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bag-pulling device for a bag-making machine, characterized in that, include: The processing box (1) has protective shells (2) fixedly connected symmetrically on both sides inside. The processing box (1) is equipped with a bag-pulling mechanism (3), and the two ends of the bag-pulling mechanism (3) are rotatably connected to each of the protective shells (2). Two transmission components (4) are provided, each movably disposed at one end of the bag-pulling mechanism (3). One end of each transmission component (4) is rotatably connected to each protective shell (2). A second bag-pulling roller (5) is fixedly connected to the outer wall of each transmission component (4). The driving mechanism (6) and the second spur gear (7) are provided, wherein the driving mechanism (6) is disposed on the processing box (1), and multiple second spur gears (7) are provided. Multiple second spur gears (7) are fixedly disposed on the bag pulling mechanism (3). The bottom of the driving mechanism (6) meshes with the multiple second spur gears (7).

2. The bag-pulling device for a bag-making machine according to claim 1, characterized in that, The bottom of the inner wall of the processing box (1) is provided with a storage groove (8), and multiple third bag-pulling rollers (9) located inside the storage groove (8) are uniformly rotatably connected inside the processing box (1).

3. A bag-pulling device for a bag-making machine according to claim 1, characterized in that, The processing box (1) has an opening (10) on one side, and a transparent protective plate (11) is provided inside the opening (10).

4. A bag-pulling device for a bag-making machine according to claim 1, characterized in that, The outer wall of the second bag-pulling roller (5) is fixedly connected with an anti-slip pad (12).

5. A bag-pulling device for a bag-making machine according to claim 1, characterized in that, The bag-pulling mechanism (3) includes a first shaft (301), the outer walls of the two ends of the first shaft (301) are rotatably connected to the two protective shells (2) respectively, the inner walls of the multiple second spur gears (7) are fixedly connected to the outer wall of the first shaft (301), the two ends of the first shaft (301) are fixedly connected to a first bevel gear (302), each first bevel gear (302) is located inside each of the protective shells (2), and the outer wall of the first shaft (301) is uniformly fixedly connected to a multiple first bag-pulling rollers (303), each first bag-pulling roller (303) is spaced apart from each second spur gear (7).

6. A bag-pulling device for a bag-making machine according to claim 1, characterized in that, The drive mechanism (6) includes a motor (601), one side of which is fixedly connected to one side of the processing box (1). The output end of the motor (601) is fixedly connected to a third shaft (602) through the processing box (1). The end of the third shaft (602) away from the motor (601) is rotatably connected to the inner wall of the processing box (1). A plurality of first spur gears (603) are uniformly fixedly connected to the outer wall of the third shaft (602). Each first spur gear (603) meshes with each second spur gear (7).

7. A bag-pulling device for a bag-making machine according to claim 5, characterized in that, The transmission assembly (4) includes a second shaft (401), one end of which is fixedly connected to the inner wall of the second bag roller (5), and the other end of which is fixedly connected to a second bevel gear (402) through the protective shell (2), and the outer wall of the second bevel gear (402) meshes with the outer wall of the first bevel gear (302).

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