bag folding machine

Abstract

This utility model discloses a bag folding machine, which includes a frame, a conveying assembly and a conveying drive component mounted on the frame. The conveying assembly transports a three-dimensional bag along the conveying direction, and the conveying drive component is driven by the conveying assembly. The conveying assembly includes a first conveying component and a second conveying component forming a conveying channel. Viewed along the conveying direction, the first conveying component contacts the corresponding wall surface of the three-dimensional bag in a first direction, and the second conveying component contacts the corresponding wall surface of the three-dimensional bag in a second direction. The output end of the conveying drive component is driven by the first and second conveying components through a linkage assembly, driving the first and second conveying components to move synchronously. This ensures that the three-dimensional bag can move within the conveying channel in a predetermined conveying direction without deviation in other directions, thereby better folding during transport and reducing the risk of damage to the three-dimensional bag during folding.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag processing technology, and in particular to a bag folding machine. Background Technology

[0002] With the development of society and the economy, three-dimensional bags have become an indispensable and commonly used tool in modern society. From packaging small items for daily shopping to transporting large quantities of goods in express logistics, the application scenarios of packaging bags are extremely wide, and people's requirements for packaging bags are also getting higher and higher.

[0003] To improve the production efficiency and quality of packaging bags, automation has become an important development direction for packaging bag production machinery. In existing technologies, stand-up pouch production equipment requires multiple processing steps on sheet or roll substrates using a forming machine to obtain stand-up pouches. Since the substrate is formed by die stamping, the stand-up pouch is initially in an unfolded state. To facilitate subsequent storage and handling, a folding machine is usually installed downstream of the forming machine to fold the stand-up pouch. The folding machine typically includes two pairs of conveyor belts, which contact the front and sides of the stand-up pouch respectively. During transport, the bag is gradually compressed, and auxiliary hooks ensure that the bag bends along predetermined creases, achieving folded storage. However, in existing technologies, the two pairs of conveyor belts in the folding machine may not guarantee synchronized operation during bag transport, causing the bag to twist during folding and preventing accurate folding. This could affect subsequent storage or even render the bag unusable. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that in the prior art, the two pairs of conveyor belts of the bag folding machine may not be able to guarantee the synchronization of operation during the transportation of 3D bags, which causes the 3D bags to twist during the folding process, making it impossible to fold them accurately, which may affect the subsequent storage of the 3D bags, or even cause the 3D bags to be scrapped.

[0005] To solve the above-mentioned technical problems, the present invention discloses a bag folding machine, which includes a frame, a conveying assembly and a conveying drive component mounted on the frame. The conveying assembly transports three-dimensional bags along the conveying direction, and the conveying drive component is connected to the conveying assembly in a driving connection.

[0006] The conveying assembly includes a first conveying component and a second conveying component that form a conveying channel. When viewed along the conveying direction, the first conveying component contacts the corresponding wall surface of the three-dimensional bag in a first direction, and the second conveying component contacts the corresponding wall surface of the three-dimensional bag in a second direction. The first and second directions are orthogonal to each other.

[0007] The output end of the conveying drive component is connected to the first conveying component and the second conveying component through a linkage assembly, driving the first conveying component and the second conveying component to move synchronously, and the three-dimensional bag is conveyed in the conveying channel.

[0008] Using the above technical solution, this bag folding machine uses a first conveying component and a second conveying component to transport the three-dimensional bag and fold it during transport. Furthermore, a linkage component is provided between the conveying drive component and the first and second conveying components, enabling the conveying drive component to simultaneously drive both components. This ensures high synchronization of the transport actions of the first and second conveying components, guaranteeing that the three-dimensional bag moves in the predetermined transport direction without deviation in other directions. This allows for better folding during transport and reduces the risk of damage during folding. Moreover, compared to existing technologies where two sets of conveying components use separate drive components, this bag folding machine only requires one conveying drive component, saving space on the machine frame and reducing the cost.

[0009] The present invention also discloses a bag folding machine, wherein a first conveying component contacts a pair of front faces of a three-dimensional bag in a first direction; and a second conveying component contacts a pair of side faces of the three-dimensional bag in a second direction.

[0010] In this case, viewed along the conveying direction, the first conveying component and the second conveying component form a conveying channel with a rectangular cross-section, and the height of the conveying channel in the first direction gradually decreases along the conveying direction.

[0011] The first conveying component includes a pair of first conveying roller groups spaced apart along a first direction. Each first conveying roller group includes a plurality of first conveying rollers extending along a second direction and spaced apart along the conveying direction. The plurality of first conveying rollers support a first conveyor belt extending along the conveying direction. The first conveyor belt contacts a corresponding front side of the 3D bag.

[0012] The second conveying component includes a pair of second conveying roller groups spaced apart along a second direction. Each second conveying roller group includes a plurality of second conveying rollers extending along a first direction and spaced apart along the conveying direction. The plurality of second conveying rollers support a second conveyor belt extending along the conveying direction. The second conveyor belt contacts a corresponding side of the 3D bag.

[0013] Using the above technical solution, the first and second conveying components form a conveying channel with a rectangular cross-section, preventing the 3D bag from shifting in other directions during conveying. Furthermore, the height of the conveying channel gradually decreases along the conveying direction, progressively compressing the 3D bag during conveying and causing it to fold, thus preventing damage from sudden compression. Each conveying component includes a conveyor belt supported by multiple corresponding conveying rollers, ensuring smooth and even contact with the corresponding wall surface of the 3D bag. Friction drives the 3D bag to move, resulting in uniform force distribution during conveying.

[0014] The present invention also discloses a bag folding machine, wherein the linkage assembly includes a first transmission component, a second transmission component, and a reversing transmission component disposed between the first transmission component and the second transmission component.

[0015] The conveying drive component is connected to the first transmission component, the first transmission component is linked to a pair of first conveying rollers of the first conveying component, and is linked to the second transmission component through the reversing transmission component, the second transmission component is linked to a pair of second conveying rollers of the second conveying component.

[0016] Using the above technical solution, the first transmission component is used to drive the first conveying component, and the second transmission component is used to drive the second conveying component. The second transmission component is linked with the first transmission component through the reversing transmission component. Even if one of the first transmission component driving the first conveying component or the second transmission component driving the second conveying component is damaged, there is no need to replace the other transmission component, thus reducing maintenance costs.

[0017] The present invention also discloses a bag folding machine. The conveying drive component is located on the downstream side of the conveying channel. The first transmission component includes a first transmission belt located at the downstream end of a pair of first conveying roller groups in the conveying channel and on one side in the second direction. The output end of the conveying drive component is connected to the first transmission belt. The pair of first conveying rollers located at the downstream end of the conveying channel in the pair of first conveying roller groups are arranged opposite to each other in the first direction, and the ends in the second direction are provided with a pair of first transmission wheels that are adapted to the first transmission belt. The first transmission belt is adapted to engage with the pair of first transmission wheels and drives the pair of first conveying rollers to rotate in opposite directions.

[0018] The second transmission component includes a second transmission belt located at the downstream end of a pair of second conveying roller sets in the conveying channel and on one side in the first direction. The pair of second conveying roller sets located at the downstream end of the conveying channel are arranged opposite to each other in the second direction, and a pair of second transmission wheels adapted to the second transmission belt are provided at their ends in the first direction. The second transmission belt is adapted to engage with the pair of second transmission wheels and drives the pair of second conveying rollers to rotate in opposite directions.

[0019] A reversing transmission component is provided between the first transmission belt and the second transmission belt. The conveying drive component drives the first transmission belt, links the reversing transmission component, and drives the second transmission belt to move.

[0020] Using the above technical solution, the power output from the conveyor drive component is transmitted to the corresponding drive pulley on the conveyor roller via a transmission belt. The elastic properties of the transmission belt can absorb mechanical vibration and reduce industrial noise that may occur during operation. Furthermore, compared to gear-driven methods, this transmission belt requires no lubrication, reducing maintenance complexity and the risk of contamination.

[0021] In addition, a reversing transmission component is set between the first and second transmission belts to link the two transmission belts in different directions. Compared with setting two separate sets of conveying drive structures, this simplifies the structure used for driving and conveying in the bag folding machine.

[0022] The present invention also discloses a bag folding machine, wherein the reversing transmission component includes a first reversing component and a second reversing component.

[0023] The first reversing component includes a first auxiliary wheel and a first reversing wheel arranged side by side on a first reversing shaft that can rotate around a second direction, and the first auxiliary wheel is adapted to engage with the first transmission belt.

[0024] The second reversing component includes a second auxiliary wheel and a second reversing wheel arranged side by side on a second reversing shaft that can rotate around a first direction, and the second auxiliary wheel is adapted to engage with the second transmission belt.

[0025] The outer circumferences of the first and second reversing wheels are respectively provided with helical gear sets or bevel gear sets that mesh with each other.

[0026] By adopting the above technical solution, the first transmission belt can drive the first transmission wheel on the first reversing shaft to rotate, and the torque can be reversed through a helical gear set or a bevel gear set. Power is cleverly transmitted to the second transmission belt through the second transmission wheel on the second reversing shaft, thus achieving linkage between the two transmission belts in different directions. Furthermore, the bevel gear set and helical gear set transmission method has high transmission accuracy, further improving the synchronization of the first and second transmission belts, that is, improving the synchronization of the first and second conveyor belts.

[0027] The present invention also discloses a bag folding machine, which further includes a secondary conveying component located downstream of the conveying component along the conveying direction, and the conveying drive component is connected to the secondary conveying component in a transmission connection.

[0028] The secondary conveying assembly includes a pair of third conveying roller groups spaced apart along a first direction. Each third conveying roller group includes multiple third conveying rollers extending along a second direction and spaced apart along the conveying direction. The multiple third conveying rollers support a corresponding third conveyor belt. The pair of third conveying rollers at the upstream end of the pair of third conveying roller groups are connected to the conveying drive component and a pair of first conveying rollers.

[0029] By adopting the above technical solution, the conveying drive component can not only drive the first and second conveying components in the conveying assembly, but also drive the secondary conveying assembly, further simplifying the structure used for driving the conveying in the bag folding machine and reducing the manufacturing cost of the bag folding machine.

[0030] The present invention also discloses a bag folding machine, wherein one of a pair of third conveying rollers located at the upstream end is provided with a third transmission wheel adapted to and engaged with the first transmission belt and a fourth transmission wheel connected to the conveying drive component at both ends in the second direction.

[0031] Furthermore, a fifth drive wheel is provided at the end of another third conveyor roller that is away from the first drive belt in the second direction, and a sixth drive wheel is provided at the end of one of the pair of first conveyor rollers that is away from the first drive belt in the second direction. The fifth drive wheel and the sixth drive wheel are connected by a third drive belt.

[0032] Using the above technical solution, both of the pair of third conveyor rollers are connected by a drive, thereby actively conveying the folded three-dimensional bag and preventing the three-dimensional bag from shifting when it is conveyed by the pair of third conveyor rollers.

[0033] The present invention also discloses a bag folding machine, wherein the conveying drive component includes a drive motor mounted on the frame, the output end of which extends along a second direction and is rotatable, and the output end of the drive motor is provided with a seventh transmission wheel and is connected to the fourth transmission wheel via a fourth transmission belt.

[0034] By adopting the above technical solution, the output end of the drive motor is equipped with a seventh transmission wheel and is connected to the fourth transmission wheel through a fourth transmission belt. The third conveyor roller drives the first transmission belt to rotate. That is, the drive motor and the first transmission belt are located at the two ends of the third conveyor roller, which simplifies the structure of the first transmission belt. At the same time, the assembly between the first transmission belt and the second transmission belt will not be affected when the drive motor is disassembled or installed.

[0035] The present invention also discloses a bag folding machine, wherein a tensioning wheel is provided on the inner side or outer periphery of at least one of the first transmission belt, the second transmission belt, the third transmission belt and the fourth transmission belt.

[0036] Furthermore, the first, second, third, and fourth transmission belts are all synchronous belts.

[0037] Correspondingly, the first and sixth drive wheels on a pair of first conveyor rollers, the second drive wheel on a pair of second conveyor rollers, the third, fourth and fifth drive wheels on a pair of third conveyor rollers, the seventh drive wheel on the drive motor, and the tensioning wheel are all set as synchronous belt pulleys.

[0038] By adopting the above technical solution, tensioning pulleys are installed on the inner or outer circumference of the transmission belt to ensure that the transmission belt always maintains a suitable initial tension, avoiding the problem of loosening caused by long-term use, thereby preventing slippage and maintaining transmission efficiency; and by stabilizing the initial tension, the vibration and off-center load of the transmission belt are reduced, the operating noise is reduced, and the power loss caused by loosening is avoided, thereby improving the overall reliability of the transmission.

[0039] Furthermore, by setting the transmission belt as a synchronous belt, and the transmission wheel and tension wheel as synchronous pulleys respectively, the overall transmission accuracy is further improved, ensuring that the first and second conveyor belts transport the three-dimensional bags synchronously, thereby increasing the success rate of bag folding.

[0040] The present invention also discloses a bag folding machine, wherein a bag hook assembly is provided on the frame next to the conveying assembly to fold the three-dimensional bag conveyed along the conveying channel along the preset crease.

[0041] By adopting the above technical solution, the hook bag assembly assists the three-dimensional bag during the transportation process, ensuring that the three-dimensional bag can be folded in the expected manner and preventing misalignment and folding.

[0042] The beneficial effects of this utility model are as follows:

[0043] This invention provides a bag folding machine that uses a first conveying component and a second conveying component to transport a three-dimensional bag and fold it during transport. Furthermore, a cleverly designed linkage component is incorporated between the conveying drive component and the first and second conveying components, allowing the conveying drive component to simultaneously drive both components. This ensures high synchronization of their transport actions, guaranteeing that the three-dimensional bag moves along a predetermined transport direction without deviation in other directions. This facilitates better folding during transport and reduces the risk of damage during the folding process. Moreover, compared to existing technologies where two sets of conveying components use separate drive components, this bag folding machine requires only one conveying drive component, saving space on the machine frame and reducing costs. Attached Figure Description

[0044] Figure 1 A three-dimensional structural diagram of a bag folding machine is provided for embodiments of this utility model;

[0045] Figure 2A three-dimensional structural diagram of the conveying component, conveying drive component, and secondary conveying component in a folding machine is provided for an embodiment of the present invention from one perspective.

[0046] Figure 3 A three-dimensional structural diagram of the conveying component, conveying drive component, and secondary conveying component in a folding machine is provided from another perspective for embodiments of this utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 10. Bag folding machine;

[0049] 100. Rack;

[0050] 200. Conveying components;

[0051] 210. First conveying component; 211. First conveying roller; 212. First conveyor belt; 213. First drive wheel; 214. Sixth drive wheel;

[0052] 220. Second conveying component; 221. Second conveying roller; 222. Second conveyor belt; 223. Second drive wheel;

[0053] 300. Conveyor drive component; 310. Drive motor; 311. Seventh transmission wheel;

[0054] 400. Linkage component; 401. Tensioner wheel;

[0055] 410. First transmission component; 411. First transmission belt;

[0056] 420. Second transmission component; 421. Second transmission belt;

[0057] 430. Reversing transmission component; 431. First reversing element; 432. Second reversing element;

[0058] 441. Third transmission belt; 442. Fourth transmission belt;

[0059] 500. Hook bag assembly;

[0060] 600. Secondary conveyor assembly; 610. Third conveyor roller; 611. Third drive wheel; 612. Fourth drive wheel; 613. Fifth drive wheel;

[0061] S: Conveying direction; Y: First direction; X: Second direction. Detailed Implementation

[0062] As the background section points out, bag folding machines typically include two pairs of conveyor belts that contact the front and sides of the stand-up pouch, respectively. During transport, the stand-up pouch is gradually compressed, and auxiliary hooks ensure that the pouch folds along predetermined creases, achieving folded storage. However, in existing bag folding machines, the two pairs of conveyor belts may not be able to guarantee synchronized operation during the transport of the stand-up pouch, causing the pouch to twist during folding, making accurate folding impossible, potentially affecting subsequent storage, or even rendering the pouch unusable.

[0063] To address this, the present invention provides a bag folding machine. This bag folding machine uses a first conveying component and a second conveying component to transport a three-dimensional bag and fold the bag during transport. Furthermore, a linkage component is provided between the conveying drive component and the first and second conveying components, enabling the conveying drive component to simultaneously drive both components. Compared to existing bag folding machines, this significantly improves the synchronization between the first and second conveying components and reduces the risk of damage to the three-dimensional bag during folding.

[0064] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0065] The bag folding machine 10 provided in this embodiment is typically installed in a stand-up pouch production equipment. The stand-up pouch production equipment typically includes a substrate storage component, a handle fixing component provided along one side of the substrate transport direction, and a forming machine. The substrate is pushed into a cylindrical structure by the mold of the forming machine, and then removed from the mold by the bag removal mechanism. At this point, the stand-up pouch is in an unfolded state and has pre-pressed creases. Specifically, the creases can be: side creases provided on a pair of sides of the stand-up pouch and bottom creases provided on the bottom surface. The stand-up pouch can be folded along the side creases and bottom creases in a way that the two sides are close together. Then the stand-up pouch is conveyed to the bag folding machine 10 for bag folding. It should be noted that this embodiment does not limit the specific structure of the stand-up pouch production equipment and the structure of the stand-up pouch.

[0066] The specific structure of the bag folding machine 10 provided in this embodiment will be described in detail below.

[0067] like Figure 1 As shown, the bag folding machine 10 provided in this embodiment includes a frame 100, a conveying assembly 200 disposed on the frame 100, and a conveying drive component 300. The conveying assembly 200 transports the three-dimensional bag along the conveying direction, and the conveying drive component 300 is connected to the conveying assembly 200 in a transmission connection.

[0068] The conveying assembly 200 includes a first conveying component 210 and a second conveying component 220 that enclose a conveying channel. Viewed along the conveying direction, the first conveying component 210 contacts the corresponding wall surface of the three-dimensional bag in a first direction, and the second conveying component 220 contacts the corresponding wall surface of the three-dimensional bag in a second direction. The first and second directions are orthogonal to each other. It should be noted that the conveying direction of the conveying assembly 200 is shown in [reference needed]. Figure 1 The direction indicated by S in the middle, the first direction see [reference]. Figure 1 The direction indicated by Y in the middle; for the second direction, see [reference needed]. Figure 1 The direction indicated by X in the middle.

[0069] The output end of the conveying drive component 300 is connected to the first conveying component 210 and the second conveying component 220 through the linkage component 400, driving the first conveying component 210 and the second conveying component 220 to move synchronously, and the three-dimensional bag is conveyed in the conveying channel.

[0070] This bag folding machine 10 uses a first conveying component 210 and a second conveying component 220 to transport three-dimensional bags and fold them during transport. Furthermore, a linkage component 400 is provided between the conveying drive component 300 and the first and second conveying components 210 and 220, enabling the conveying drive component 300 to simultaneously drive both components. This ensures high synchronization of the transport actions of the first and second conveying components 210 and 220, guaranteeing that the three-dimensional bags move in the predetermined transport direction without deviation in other directions. This allows for better folding during transport and reduces the risk of damage during folding. Moreover, compared to existing technologies where two sets of conveying components use separate drive components, this bag folding machine 10 only requires one conveying drive component 300, saving space on the machine frame 10 and reducing the cost of the bag folding machine 10.

[0071] The specific structure and working principle of the conveying component 200 are explained below.

[0072] The first conveying component 210 can contact a pair of front faces of the stand-up pouch in a first direction; and the second conveying component 220 can contact a pair of sides of the stand-up pouch in a second direction. The stand-up pouch enters the conveying channel in a side-lying position to ensure that the stand-up pouch does not deviate in other directions during the conveying process.

[0073] Furthermore, viewed along the conveying direction, the first conveying component 210 and the second conveying component 220 form a conveying channel with a rectangular cross-section. The height of the conveying channel in the first direction gradually decreases along the conveying direction, gradually compressing the three-dimensional bag during the conveying process, causing the three-dimensional bag to fold and avoiding damage to the three-dimensional bag due to sudden compression.

[0074] Furthermore, such as Figure 1 As shown, in order to ensure that the 3D bag can be accurately folded along the crease in the conveying channel, the frame 100 is also provided with a bag hook assembly 500 located next to the conveying assembly 200 to fold the 3D bag conveyed along the conveying channel along the preset crease.

[0075] Specifically, the hook bag assembly 500 may include a bottom hook plate for pressing the bottom crease on the bottom surface and a side hook plate for pressing the side crease on the side surface. The bottom hook plate can be driven by the bottom hook drive to move along the conveying direction so as to act on the corresponding bottom crease on the 3D bag during the conveying process, ensuring that the 3D bag can be folded along the preset crease and preventing the 3D bag from being misaligned. This embodiment does not specifically limit the specific structure of the hook bag assembly 500.

[0076] Of course, the first conveying component 210 may contact one front of the 3D bag in the first direction, while the second conveying component 220 may contact a pair of sides of the 3D bag in the second direction. The 3D bag may be folded by the hook bag assemblies 500 provided on both sides in the second direction. This embodiment does not limit this to a single method.

[0077] Furthermore, the first conveying component 210 and the second conveying component 220 can be any one of belt conveying, suction cup conveying or robotic arm conveying, and this embodiment does not limit them to a single one.

[0078] The following description uses an example where both the first conveyor component 210 and the second conveyor component 220 employ belt conveyors. In this embodiment, as... Figure 2 As shown, the first conveying component 210 includes a pair of first conveying roller groups spaced apart along a first direction. Each first conveying roller group includes a plurality of first conveying rollers 211 extending along a second direction and spaced apart along the conveying direction. The plurality of first conveying rollers 211 support a first conveyor belt 212 extending along the conveying direction. The first conveyor belt 212 contacts a corresponding front side of the 3D bag.

[0079] The second conveying component 220 includes a pair of second conveying roller groups spaced apart along a second direction. Each second conveying roller group includes a plurality of second conveying rollers 221 extending along a first direction and spaced apart along the conveying direction. The plurality of second conveying rollers 221 support a second conveyor belt 222 extending along the conveying direction. The second conveyor belt 222 contacts a corresponding side of the 3D bag.

[0080] In this embodiment, each first conveying roller group may include two, three, or four first conveying rollers 211, and each second conveying roller group may include two, three, or four second conveying rollers 221. This embodiment does not make specific limitations on this.

[0081] Each conveying component includes a conveyor belt supported by multiple corresponding conveyor rollers, which makes smooth and flat contact with the corresponding wall surface of the 3D bag and drives the 3D bag to move through friction, so that the 3D bag is subjected to uniform force during the conveying process.

[0082] It should be noted that, in this embodiment, when the linkage component 400 drives any one of the conveying components to convey the three-dimensional bag, it can be connected to one of the conveying rollers in the conveying roller group of any one of the conveying components. The outer conveyor belt is moved by the conveying roller, and the other conveying rollers move with the conveyor belt. Compared with direct transmission to the conveyor belt, this transmission method is simpler and there is no problem of resetting the conveyor belt.

[0083] The specific structure and working principle of the linkage component 400 are explained below.

[0084] In this embodiment, as Figure 1 and Figure 2 As shown, the linkage component 400 is mainly used to transmit the power of the conveying drive component 300 to the first conveying component 210 and the second conveying component 220. Specifically, the linkage component 400 may include a first transmission component 410, a second transmission component 420, and a reversing transmission component 430 disposed between the first transmission component 410 and the second transmission component 420.

[0085] The conveying drive component 300 is connected to the first transmission component 410, the first transmission component 410 is linked to a pair of first conveying rollers of the first conveying component 210, and is linked to the second transmission component 420 through the reversing transmission component 430, the second transmission component 420 is linked to a pair of second conveying rollers of the second conveying component 220.

[0086] In this embodiment, even if either the first transmission component 410 driving the first conveying component 210 or the second transmission component 420 driving the second conveying component 220 is damaged, the other transmission component does not need to be replaced, thus reducing maintenance costs.

[0087] More specifically, such as Figure 2As shown, in this embodiment, the conveying drive component 300 is located on the downstream side of the conveying channel. The first transmission component 410 includes a first transmission belt 411 located at the downstream end of a pair of first conveying roller groups in the conveying channel and on one side in the second direction. The output end of the conveying drive component 300 is connected to the first transmission belt 411. The pair of first conveying rollers 211 located at the downstream end of the conveying channel in the pair of first conveying roller groups are arranged opposite to each other in the first direction. Furthermore, the ends of the pair of first conveying rollers 211 in the second direction are provided with a pair of first transmission wheels 213 that are adapted to the first transmission belt 411. The first transmission belt 411 is adapted to engage with the pair of first transmission wheels 213. The first transmission belt 411 can be linked by the first transmission wheels 213 to rotate the pair of first conveying rollers 211 in opposite directions.

[0088] The second transmission component 420 includes a second transmission belt 421 located at the downstream end of a pair of second conveying roller sets in the conveying channel and on one side in the first direction. The pair of second conveying rollers 221 located at the downstream end of the conveying channel in the pair of second conveying roller sets are arranged opposite to each other in the second direction. Furthermore, the ends of the pair of second conveying rollers 221 in the first direction are provided with a pair of second transmission wheels 223 that are adapted to the second transmission belt 421. The second transmission belt 421 is adapted to engage with the pair of second transmission wheels 223. The second transmission belt 421 can be linked by the second transmission wheels 223 to rotate the pair of second conveying rollers 221 in opposite directions.

[0089] It should be noted that, in order to ensure that the first transmission belt 411 is linked to a pair of first conveyor rollers 211 rotating in opposite directions, one of the first transmission wheels 213 on the pair of first conveyor rollers 211 engages with the inner surface of the first transmission belt 411 and the other engages with the outer surface of the first transmission belt 411. Similarly, one of the second transmission wheels 223 on the pair of second conveyor rollers 221 engages with the inner surface of the second transmission belt 421 and the other engages with the outer surface of the second transmission belt 421.

[0090] Furthermore, to ensure a tight fit between the transmission pulley and the corresponding transmission belt, tension pulleys 401 can be provided on the inner and outer circumferences of the first transmission belt 411 and the second transmission belt 421 to ensure that the transmission belt always maintains a suitable initial tension, avoids slack caused by long-term use, thereby preventing slippage between the transmission belt and the transmission pulley and maintaining transmission efficiency; and by stabilizing the initial tension, the vibration and off-center load of the transmission belt are reduced, the operating noise is reduced, and the power loss caused by slack is avoided, thereby improving the overall reliability of the transmission.

[0091] Of course, in another alternative solution, taking the first conveying roller 211 as an example, the first drive wheel 213 on a pair of first conveying rollers 211 are both engaged with the same side surface of the first drive belt 411. However, an intermediate reversing wheel is also provided between one of the first conveying rollers 211 and the corresponding first drive wheel 213. The first drive wheel 213 and the intermediate reversing wheel can be connected by a gear transmission, thereby achieving the purpose of the pair of first conveying rollers 211 rotating in opposite directions. This embodiment does not specifically limit this.

[0092] Furthermore, a reversing transmission component 430 is provided between the first transmission belt 411 and the second transmission belt 421. The conveying drive component 300 drives the first transmission belt 411, links the reversing transmission component 430, and drives the second transmission belt 421 to move.

[0093] Specifically, the reversing transmission component 430 includes a first reversing element 431 and a second reversing element 432. The first reversing element 431 includes a first auxiliary wheel and a first reversing wheel arranged side by side on a first reversing shaft that can rotate around a second direction. The first auxiliary wheel is adapted to engage with the first transmission belt 411.

[0094] The second reversing component 432 includes a second auxiliary wheel and a second reversing wheel arranged side by side on a second reversing shaft that can rotate about a first direction. The second auxiliary wheel is adapted to engage with the second transmission belt 421.

[0095] The first reversing wheel and the second reversing wheel are respectively provided with helical gear sets that mesh with each other. The helical gear set transmission method has high transmission accuracy and further improves the synchronization of the first transmission belt 411 and the second transmission belt 421, that is, improves the synchronization of the first conveyor belt 212 and the second conveyor belt 222.

[0096] Specifically, the helix angle of the helical gear on the outer periphery of the first reversing wheel relative to the second direction (the angle between the helical gear teeth and the axis) is the same as the helix angle of the helical gear on the outer periphery of the second reversing wheel relative to the first direction, ensuring that the two axially perpendicular helical gears can mesh with each other, thereby realizing reversing transmission.

[0097] Of course, the outer circumferences of the first reversing wheel and the second reversing wheel can also be respectively provided with bevel gear sets that mesh with each other; the outer circumference of the first reversing wheel can also be provided with a worm gear, which cooperates with the second reversing shaft which is set as a worm. This embodiment does not limit this to a single one.

[0098] In this embodiment, the power output by the conveyor drive component 300 is transmitted to the drive wheel on the corresponding conveyor roller via a drive belt. The elastic properties of the drive belt can absorb mechanical vibration and reduce industrial noise that may occur during operation. Furthermore, compared to gear-driven methods, this drive belt requires no lubrication, reducing maintenance complexity and the risk of contamination.

[0099] In addition, the reversing transmission component 430 provided between the first transmission belt 411 and the second transmission belt 421 links the two transmission belts in different directions, which simplifies the structure used for driving and conveying in the bag folding machine 10 compared to setting two separate sets of conveying drive structures.

[0100] Of course, the conveying drive component 300 is located on the upstream side of the conveying channel, and is linked by the first transmission belt 411 to rotate the pair of second conveying rollers 221 located at the upstream end of the pair of first conveying roller groups, and is linked by the reversing transmission component 430 and the second transmission belt 421 to rotate the pair of second conveying rollers 221 located at the downstream end of the pair of second conveying roller groups; or the first transmission component 410 and the second transmission component 420 can be driven by gear transmission or chain transmission to drive the first conveying component 210 and the second conveying component 220, and this embodiment does not limit this only.

[0101] Furthermore, since the folding bag machine 10 needs to output the folded folded bag after completing the folding of the stand-up pouch, the folding bag machine 10 also includes a secondary conveying component 600 located downstream of the conveying component 200 along the conveying direction, and the conveying drive component 300 is connected to the secondary conveying component 600 in a transmission connection, which further simplifies the structure used for driving the conveying in the folding bag machine 10 and reduces the manufacturing cost of the folding bag machine 10.

[0102] Specifically, such as Figure 1 and Figure 3 As shown, in this embodiment, the secondary conveying assembly 600 includes a pair of third conveying roller groups spaced apart along a first direction. Each third conveying roller group includes a plurality of third conveying rollers 610 extending along a second direction and spaced apart along the conveying direction. The plurality of third conveying rollers 610 support a corresponding third conveyor belt. The pair of third conveying rollers 610 at the upstream end of the pair of third conveying roller groups are connected to the conveying drive component 300 and a pair of first conveying rollers 211 in a transmission connection.

[0103] More specifically, such as Figure 2 and Figure 3 As shown, a pair of third conveyor rollers 610 located at the upstream end can also be arranged between the third conveyor belt and the first conveyor belt 212, thereby serving as a connector. Furthermore, one of these third conveyor rollers 610 (see...) Figure 2 The third conveying roller 610 located at the top is provided with a third transmission wheel 611 at one end in the second direction, which is adapted to engage with the first transmission belt 411, and a fourth transmission wheel 612 at the other end, which is connected to the conveying drive component 300.

[0104] Furthermore, another third conveyor roller 610 (see...) Figure 2The third conveyor roller 610 located below is provided with a fifth drive wheel 613 at the end in the second direction away from the first drive belt 411, and one of the pair of first conveyor rollers 211 (see Figure 2 The third conveyor roller 610, located at the top, has a sixth drive wheel 214 at its end in the second direction away from the first drive belt 411. The fifth drive wheel 613 and the sixth drive wheel 214 are connected by the third drive belt 441. It should be noted that a tension wheel 401 may also be provided on the outer circumference or inner side of the third drive wheel 611.

[0105] Of course, the secondary conveying component 600 can also be conveyed by suction cups or robotic arms, and this embodiment does not limit it to this only.

[0106] like Figure 3 As shown, in this embodiment, the conveying drive component 300 includes a drive motor 310 mounted on the frame 100. The output end of the drive motor 310 extends along the second direction and is rotatable. Furthermore, the output end of the drive motor 310 is provided with a seventh transmission wheel 311 and is connected to the fourth transmission wheel 612 via a fourth transmission belt 442.

[0107] In this embodiment, the output end of the drive motor 310 is provided with a seventh transmission wheel 311 and is connected to the fourth transmission wheel 612 via a fourth transmission belt 442. The third conveying roller 610 drives the first transmission belt 411 to rotate. That is, the drive motor 310 and the first transmission belt 411 are located at opposite ends of the third conveying roller 610, simplifying the first transmission belt 411 (see...). Figure 2 The structure at the viewpoint will not affect the assembly between the first transmission belt 411 and the second transmission belt 421 when the drive motor 310 is disassembled or assembled.

[0108] Of course, the conveying drive component 300 is not limited to a motor, but can also be a hydraulic drive cylinder or a pneumatic cylinder, etc. At the same time, the output end of the drive motor 310 can also be connected to the end of the third conveying roller 610 through a coupling, or through a gear set, or through a chain drive. This embodiment does not limit this to a single one.

[0109] It should be noted that in this embodiment, the first transmission belt 411, the second transmission belt 421, the third transmission belt 441, and the fourth transmission belt 442 are all configured as synchronous belts.

[0110] Correspondingly, the first drive wheel 213 and the sixth drive wheel 214 on a pair of first conveyor rollers 211, the second drive wheel 223 on a pair of second conveyor rollers 221, the third drive wheel 611, the fourth drive wheel 612 and the fifth drive wheel 613 on a pair of third conveyor rollers 610, the seventh drive wheel 311 on the drive motor 310, and the tension wheel 401 are all set as synchronous belt pulleys to further improve the overall transmission accuracy, ensure that the first conveyor belt 212 and the second conveyor belt 222 transport the three-dimensional bag synchronously, and improve the success rate of bag folding.

[0111] Of course, the transmission belt can also be set as a flat belt, wedge belt, etc., and the transmission wheel and tension wheel 401 can be set as corresponding and compatible wheel types. This embodiment does not limit this to a single type.

[0112] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0113] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0114] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0115] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0116] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0117] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A bag folding machine characterized by comprising: The bag folding machine includes a frame, a conveying assembly mounted on the frame, and a conveying drive component. The conveying assembly transports three-dimensional bags along a conveying direction, and the conveying drive component is kinetically connected to the conveying assembly. The conveying assembly includes a first conveying component and a second conveying component that form a conveying channel. Viewed along the conveying direction, the first conveying component contacts the corresponding wall surface of the three-dimensional bag in a first direction, and the second conveying component contacts the corresponding wall surface of the three-dimensional bag in a second direction. The first direction and the second direction are orthogonal to each other. The output end of the conveying drive component is connected to the first conveying component and the second conveying component through a linkage assembly, driving the first conveying component and the second conveying component to move synchronously, and the three-dimensional bag is conveyed in the conveying channel.

2. The bag folding machine according to claim 1, wherein in, The first conveying component contacts a pair of front faces of the three-dimensional bag in the first direction; and the second conveying component contacts a pair of side faces of the three-dimensional bag in the second direction; wherein, Viewed along the conveying direction, the first conveying component and the second conveying component form the conveying channel with a rectangular cross-section, and the height of the conveying channel in the first direction gradually decreases along the conveying direction; wherein, The first conveying component includes a pair of first conveying roller groups spaced apart along the first direction. Each first conveying roller group includes a plurality of first conveying rollers extending along the second direction and spaced apart along the conveying direction. The plurality of first conveying rollers support a first conveyor belt extending along the conveying direction. The first conveyor belt contacts a corresponding front side of the three-dimensional bag. The second conveying component includes a pair of second conveying roller groups spaced apart along the second direction. Each second conveying roller group includes a plurality of second conveying rollers extending along the first direction and spaced apart along the conveying direction. The plurality of second conveying rollers support a second conveyor belt extending along the conveying direction. The second conveyor belt contacts a corresponding side of the 3D bag.

3. The bag folding machine according to claim 2, wherein in, The linkage assembly includes a first transmission component, a second transmission component, and a reversing transmission component disposed between the first transmission component and the second transmission component; wherein... The conveying drive component is connected to the first transmission component, the first transmission component is linked to the pair of first conveying rollers of the first conveying component, and is linked to the second transmission component through the reversing transmission component, the second transmission component is linked to the pair of second conveying rollers of the second conveying component.

4. The bag folding machine according to claim 3, wherein in, The conveying drive component is located on the downstream side of the conveying channel. The first transmission component includes a first transmission belt located at the downstream end of the pair of first conveying rollers in the conveying channel and on one side in the second direction. The output end of the conveying drive component is connected to the first transmission belt. The pair of first conveying rollers located at the downstream end of the conveying channel in the pair of first conveying rollers are arranged opposite to each other in the first direction, and a pair of first transmission wheels adapted to the first transmission belt are provided at their ends in the second direction. The first transmission belt is adapted to engage with the pair of first transmission wheels and drives the pair of first conveying rollers to rotate in opposite directions. The second transmission component includes a second transmission belt located at the downstream end of the pair of second conveying roller sets in the conveying channel, on one side of the first direction. The pair of second conveying rollers located at the downstream end of the conveying channel in the pair of second conveying roller sets are arranged opposite to each other in the second direction, and each has a pair of second transmission pulleys adapted to the second transmission belt at its end in the first direction. The second transmission belt is adapted to engage with the pair of second transmission pulleys, thereby driving the pair of second conveying rollers to rotate in opposite directions. The reversing transmission component is provided between the first transmission belt and the second transmission belt. The conveying drive component drives the first transmission belt, links the reversing transmission component, and drives the second transmission belt to move.

5. The bag folding machine as described in claim 4, characterized in that, The reversing transmission component includes a first reversing element and a second reversing element; wherein... The first reversing component includes a first auxiliary wheel and a first reversing wheel arranged side by side on a first reversing shaft that can rotate about the second direction, wherein the first auxiliary wheel is adapted to engage with the first transmission belt; The second reversing component includes a second auxiliary wheel and a second reversing wheel arranged side-by-side on a second reversing shaft rotatable about the first direction, the second auxiliary wheel being adapted to engage with the second transmission belt; and... The outer circumferences of the first reversing wheel and the second reversing wheel are respectively provided with helical gear sets or bevel gear sets that are adapted to mesh with each other.

6. The bag folding machine according to claim 5, wherein in, The bag folding machine further includes a secondary conveying assembly located downstream of the conveying assembly along the conveying direction, and the conveying drive component is pulsatorically connected to the secondary conveying assembly; wherein... The secondary conveying assembly includes a pair of third conveying roller groups spaced apart along the first direction. Each third conveying roller group includes a plurality of third conveying rollers extending along the second direction and spaced apart along the conveying direction. The plurality of third conveying rollers support a corresponding third conveyor belt. The pair of third conveying rollers at the upstream end of the pair of third conveying roller groups are drively connected to the conveying drive component and the pair of first conveying rollers.

7. The bag folding machine according to claim 6, wherein in, One of the pair of third conveying rollers located at the upstream end has a third drive wheel adapted to engage with the first drive belt and a fourth drive wheel connected to the conveying drive component at both ends in the second direction; and... The other third conveying roller is provided with a fifth drive wheel at the end away from the first drive belt in the second direction, and one of the first conveying rollers is provided with a sixth drive wheel at the end away from the first drive belt in the second direction. The fifth drive wheel and the sixth drive wheel are connected by a third drive belt.

8. The bag folding machine according to claim 7, wherein in, The conveying drive component includes a drive motor mounted on the frame, with its output end extending along the second direction and rotatable. The output end of the drive motor is provided with a seventh transmission wheel and is connected to the fourth transmission wheel via a fourth transmission belt.

9. The bag folding machine as described in claim 8, characterized in that, in, A tensioning pulley is provided on the inner side or outer periphery of at least one of the first transmission belt, the second transmission belt, the third transmission belt, and the fourth transmission belt; and... The first transmission belt, the second transmission belt, the third transmission belt, and the fourth transmission belt are all synchronous belts; wherein... The first and sixth drive wheels on the pair of first conveyor rollers, the second drive wheel on the pair of second conveyor rollers, the third drive wheel on the pair of third conveyor rollers, the fourth and fifth drive wheels, the seventh drive wheel on the drive motor, and the tensioning wheel are all configured as synchronous belt pulleys.

10. The bag folding machine according to any one of claims 1 to 9, characterized in that, The frame is also equipped with a bag hook assembly located next to the conveying assembly to fold the three-dimensional bag conveyed along the conveying channel along a preset crease.

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