Packaging bag conveying device and packaging bag manufacturing equipment

Abstract

The utility model discloses a conveying device of a packaging bag and manufacturing equipment of the packaging bag. The conveying device comprises a rack, a first conveying mechanism, a second conveying mechanism and a guiding mechanism. The first conveying mechanism conveys the packaging bag in a first posture that the length direction of the packaging bag coincides with the conveying direction; the second conveying mechanism conveys the packaging bag in a second posture that the length direction of the packaging bag is perpendicular to the conveying direction; the guiding mechanism receives the packaging bags from the first conveying mechanism, guides the packaging bags to be converted from the first posture to the second posture and conveys the packaging bags into the second conveying mechanism. When the bag making device is applied to making equipment needing to execute bag making actions in different directions of the packaging bag, the positions of the corresponding execution devices do not need to be adjusted, the problems that the overall structure of the making equipment is too complex and the size is large due to multi-direction device arrangement are solved, and the bag making device has the advantage of being low in occupied space requirement.

Description

Technical Field

[0001] The present application relates to the technical field of packaging bag production, and in particular to a conveying device used on packaging bag production equipment. Background Art

[0002] Packaging bags are bags used to package items and are widely used in daily life and industrial production. Common packaging bags are made of various materials such as polyethylene base materials, polypropylene base materials, polyvinyl chloride base materials, and paper base materials. The shapes of the bags are also rich and varied according to different usage requirements. During the production of packaging bags, in different workstations of some packaging bag making equipment, the devices that perform the corresponding bag-making actions may need to perform the bag-making actions in different directions of the packaging bag. In the prior art, in the face of this problem, the position of the corresponding execution device is usually adjusted according to demand, that is, the layout direction of the corresponding execution device is set to different according to the bag-making actions of different workstations. This will not only increase the complexity of the overall structure of the machine, but also lead to a larger overall size and require a higher floor space.

[0003] Therefore, some packaging bag making equipment in the prior art has the problem of high floor space requirements. Utility Model Content

[0004] The purpose of this application is to solve the problem of high floor space requirements of some packaging bag making equipment in the prior art.

[0005] To solve the above problems, the present application provides a packaging bag conveying device, including a frame, a first conveying mechanism, a second conveying mechanism, and a guiding mechanism; the first conveying mechanism is arranged on the frame and located on the upstream side of the conveying direction, and the first conveying mechanism conveys the packaging bag in a first posture in which the length direction of the packaging bag coincides with the conveying direction; the second conveying mechanism is arranged on the frame and located on the downstream side of the conveying direction, and the second conveying mechanism conveys the packaging bag in a second posture in which the length direction of the packaging bag is perpendicular to the conveying direction; the guiding mechanism is arranged on the frame and located between the first conveying mechanism and the second conveying mechanism in the conveying direction, the guiding mechanism receives the packaging bag from the first conveying mechanism, guides the packaging bag to change from the first posture to the second posture, and conveys it into the second conveying mechanism.

[0006] By adopting the above technical solution, the first conveying mechanism and the second conveying mechanism in the conveying device of the present application can convey packaging bags in different postures, and the intermediate guiding mechanism located between the first conveying mechanism and the second conveying mechanism can not only connect the normal conveying between the first conveying mechanism and the second conveying mechanism to avoid the packaging bags pausing during the conveying process, but also guide the packaging bags to change from the first posture to the second posture, thereby meeting the requirements of conveying in different directions. In this way, for production equipment that needs to perform bag-making actions in different directions of the packaging bags, there is no need to adjust the position of the corresponding execution device. On the basis of ensuring the normal production of packaging bags, the problem of the overall structure of the production equipment being too complicated and large in size due to the multi-directional device arrangement can be avoided, which has the advantage of low space requirements.

[0007] According to the conveying device for packaging bags provided in the present application, the guiding mechanism includes a corner limiting component and a guiding and conveying component; the two ends of the guiding and conveying component are respectively connected to the first conveying mechanism and the second conveying mechanism, and convey the packaging bag from the first conveying mechanism to the second conveying mechanism along the conveying direction; and the corner limiting component is located downstream of the outlet end of the first conveying mechanism, and is opposite to one side corner of the upstream end of the packaging bag in the first posture in the conveying direction; wherein, after the packaging bag enters the guiding mechanism, one side corner of the front end of the packaging bag in the first posture abuts against the corner limiting component, and the guiding and conveying component continues to convey the packaging bag and links the packaging bag to rotate around the corner limiting component to change to the second posture.

[0008] With this technical solution, when a package bag is conveyed to the guide conveyor, the corner of the bag's bottom wall near the stop assembly abuts the corner blocking member. The bag then contacts the blocking member and rotates around it, completing the reversal. This entire process does not require complex mechanical movements or lengthy adjustments. Furthermore, this reversal can be matched to the continuous conveying speed of the conveyor belt, eliminating any interruptions or pauses in the conveying process. This ensures continuous and smooth production, improving efficiency.

[0009] According to the conveying device for packaging bags provided in the present application, the side wall of the corner limiting member corresponding to the corner of one side of the packaging bag in the conveying direction is formed as a smooth surface inclined toward the second conveying mechanism relative to the conveying direction; and the side wall of the corner limiting member corresponding to the corner of one side of the packaging bag in the conveying direction is formed in the height direction as an inclined surface gradually approaching the first conveying mechanism from bottom to top.

[0010] By adopting the above technical solution, by setting the corner limiting component as an inclined structure, during the transportation of the bag unit, when the corner on one side of its bottom wall gradually approaches the inverted conical blocking rod, the conical side will provide a gradually converging guide path for the bag unit, which can prevent the corner on one side of the bottom wall of the bag unit from colliding with the corner blocking component and warping up, affecting the rotation movement of the bag unit; and the smooth surface guidance can reduce the rotation resistance of the packaging bag and improve the success rate of the packaging bag posture switching.

[0011] According to the conveying device for packaging bags provided in the present application, the guiding mechanism also includes a pressing component, which is movably arranged above the guiding and conveying component, located on one side of the corner limiting component in a direction perpendicular to the conveying direction, and closer to the bag body of the packaging bag in the second posture than the corner limiting component; wherein, when one corner of the packaging bag abuts against the corner limiting member, the lower end of the pressing component presses the upstream end edge of the packaging bag and rotates around the corner limiting member synchronously with the packaging bag.

[0012] With this technical solution, as the corner of its bottom wall gradually approaches the inverted tapered blocking rod, the transfer component descends and presses against the bottom wall of the bag unit, rotating while pressing. This prevents the bag unit from slipping or deviating from its rotational trajectory. This ensures that the bag unit rotates at a predetermined speed and angle, further enhancing the stability of the reversal. Even when handling heavy bags or those with low surface friction, the transfer component's pressure ensures smooth reversal.

[0013] According to the conveying device for packaging bags provided in the present application, the pressing component includes a lifting member arranged on a frame and an extrusion rotating head arranged on the lifting member; wherein, when one corner of the packaging bag abuts against the corner limiting member, the lifting member links the lower end of the extrusion rotating head to press on the upstream end edge of the packaging bag, and the extrusion rotating head rotates synchronously with the packaging bag.

[0014] By adopting the above technical solution, the combined structure of the lifting component and the extrusion rotating head, the lifting component can not only drive the extrusion rotating head to press down to actively press and position the packaging bag, but also lift the extrusion rotating head through the linkage of the lifting component, thereby releasing the interference to the packaging bag during the reversing process and ensuring the stability of the packaging bag during the transition from the first posture to the second posture.

[0015] According to the conveying device for packaging bags provided in the present application, the guiding mechanism also includes an extrusion conveying wheel rotatably arranged above the guiding and conveying member; the extrusion conveying wheel is located on the upstream side of the corner limiting member in the conveying direction, and the linear speed of the extrusion conveying wheel is the same as the conveying speed of the guiding and conveying member; the outer peripheral edge of the extrusion conveying wheel squeezes the bag body of the packaging bag in the first posture and conveys the packaging bag synchronously with the guiding and conveying member.

[0016] By adopting the above technical solution, the extrusion conveying wheel can be rotatably connected to the frame and move the bag unit toward the transfer component along the production direction. It can provide continuous conveying force for the bag unit during the entire conveying process, allowing the bag unit to approach the transfer component at a uniform speed and in a stable state, thereby ensuring the stability of the bag unit's reversal.

[0017] According to the packaging bag conveying device provided in the present application, the extrusion conveying wheel is rotatably connected to the frame and is located on the same side as the pressing component in a direction perpendicular to the conveying direction.

[0018] By adopting the above technical solution, the extrusion conveying wheel is arranged on the same side as the pressing component, so that the conveying force direction of the extrusion conveying wheel is the tangent direction of the rotation trajectory of the packaging bag, which is more conducive to the smooth switching of the packaging bag posture.

[0019] According to the packaging bag conveying device provided in the present application, the extrusion conveying wheel is sequentially formed with an arc-shaped extrusion surface and an avoidance gap along its circumference, and the arc length of the arc-shaped extrusion surface is smaller than the bag body length of the packaging bag.

[0020] By adopting the above technical solution, the contact angle between the extrusion conveying wheel and the bag body unit is adjusted so that the arc-shaped extrusion surface contacts the bag body unit. The avoidance gap can avoid the handle, bag opening and other features of the packaging bag, thereby preventing the extrusion conveying wheel from excessively interfering with the bag body unit, causing the packaging bag to pause or fail to change direction.

[0021] According to the conveying device for packaging bags provided in the present application, the guiding mechanism also includes an alignment adjustment component, which is located on the downstream side of the corner limiting member in the conveying direction, and the alignment adjustment component includes a limiting baffle, an adjusting roller and a pressing limiting component; the limiting baffle extends along the conveying direction and is adjustable in position on the frame, located on the side corresponding to the bottom edge of the packaging bag in the second posture; the adjusting roller is rotatably arranged around the conveying direction below the guiding conveying member, and the upper end surface protrudes at least partially from the conveying surface of the guiding conveying member in the height direction; the pressing limiting component is liftably connected to the frame and is located above the adjusting roller.

[0022] By adopting the above technical solution, after the posture of the packaging bag is converted, even if there is a deviation between the direction of the packaging bag and the conveying path of the second conveying mechanism, the present application sets an alignment adjustment component, which can adjust the position of the packaging bag perpendicular to the production direction so that it can be accurately conveyed by the second conveying mechanism.

[0023] In addition, a limit baffle extends in the production direction and is adjustable in position on the frame, located on the side corresponding to the bottom wall of the packaging bag. During the packaging bag alignment process, the limit baffle can serve as a fixed reference boundary to limit the bottom of the packaging bag. An adjustment roller is mounted on the frame and rotates around the production direction. When the packaging bag is conveyed to the adjustment roller position, the rotation of the adjustment roller can generate a lateral thrust on the packaging bag, thereby adjusting the position of the packaging bag. At the same time, a pressing limit component is connected to the frame and is located above the adjustment roller in a liftable manner. It can press the packaging bag downward, so that the packaging bag maintains a stable posture while receiving the thrust of the adjustment roller, thereby preventing the packaging bag from tilting or shaking during the position adjustment process.

[0024] The present application also provides a packaging bag manufacturing device, including a conveying device of the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a packaging bag conveying device provided in an embodiment of the present application from one perspective;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of the packaging bag conveying device provided in an embodiment of the present application from another perspective;

[0027] Figure 3 A schematic diagram of the three-dimensional structure of a guide mechanism in a packaging bag conveying device provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of a corner limiting member in a packaging bag conveying device provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the three-dimensional structure of the alignment adjustment component in the packaging bag conveying device provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 10. First conveying mechanism;

[0032] 20. Second conveying mechanism;

[0033] 30. Guidance agencies;

[0034] 31. Corner limiting member; 32. Guide conveying member; 33. Pressing member; 331. Extrusion rotating head; 332. Lifting member; 34. Extrusion conveying wheel; 35. Alignment adjustment assembly; 351. Limiting baffle; 352. Adjusting roller; 353. Pressing limiting member;

[0035] 40. Rack. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0037] The embodiment of the present application provides a packaging bag conveying device, such as Figure 1 and Figure 2 As shown, it includes a frame 40 , a first conveying mechanism 10 , a second conveying mechanism 20 , and a guiding mechanism 30 .

[0038] Specifically, in the embodiments of the present application, the packaging bag may refer to a packaging bag made of various materials such as paper material, plastic, etc. The frame 40 is the supporting frame of the entire conveying device and may be a metal frame structure, providing an installation basis for the first conveying mechanism 10, the second conveying mechanism 20, and the guiding mechanism 30.

[0039] The first conveying mechanism 10 is provided on the frame 40 and is located upstream in the conveying direction. The first conveying mechanism 10 conveys the packaging bag in a first posture in which the longitudinal direction of the packaging bag coincides with the conveying direction.

[0040] The second conveying mechanism 20 is arranged on the frame 40 and is located on the downstream side in the conveying direction. The second conveying mechanism 20 conveys the packaging bag in a second posture in which the length direction of the packaging bag is perpendicular to the conveying direction; the guiding mechanism 30 is arranged on the frame 40 and is located between the first conveying mechanism 10 and the second conveying mechanism 20 in the conveying direction. The guiding mechanism 30 receives the packaging bag from the first conveying mechanism 10, guides the packaging bag to change from the first posture to the second posture, and conveys it into the second conveying mechanism 20.

[0041] The first conveying mechanism 10 and the second conveying mechanism 20 in the conveying device provided in this embodiment can convey packaging bags in different postures. The intermediate guiding mechanism 30 located between the first conveying mechanism 10 and the second conveying mechanism 20 can not only connect the normal conveying between the first conveying mechanism 10 and the second conveying mechanism 20 to prevent the packaging bags from pausing during the conveying process, but also guide the packaging bags from the first posture to the second posture, thereby meeting the requirements of conveying in different directions. In this way, for production equipment that needs to perform bag-making operations in different directions, there is no need to adjust the position of the corresponding execution device. While ensuring the normal production of packaging bags, the production equipment can avoid the problems of excessive complexity and large size caused by the multi-directional device arrangement, and has the advantage of low space requirements.

[0042] Regarding the first conveying mechanism 10 , the structure of the first conveying mechanism 10 is not limited, and for example, it can be configured as a conveying belt, a conveying suction cup, etc.

[0043] Taking the first conveying mechanism 10 as a conveyor belt as an example, the first conveying mechanism 10 may include two parallel driving rollers and a driven roller, with a conveyor belt looped between the two rollers, and extending along the production direction.

[0044] Regarding the second conveying mechanism 20 , the structure of the second conveying mechanism 20 is also not limited, and for example, it can be configured as a conveying belt, a conveying suction cup, etc.

[0045] Taking the second conveying mechanism 20 as a conveyor belt as an example, its configuration is similar to that of the first conveying mechanism 10 and will not be described in detail in this embodiment.

[0046] Regarding the guiding mechanism 30, the specific structure of the guiding mechanism 30 is not limited. For example, it can be set as a mechanical claw, using the mechanical claw to grab the packaging bag, so that the packaging bag is converted from the first posture to the second posture. It can also be set as an electric suction cup, using the electric suction cup to absorb the packaging bag and link the packaging bag to convert from the first posture to the second posture.

[0047] In one embodiment, Figures 3 to 5 As shown, the guide mechanism 30 includes a corner limiting member 31 and a guide conveying member 32 .

[0048] Specifically, both ends of the guiding conveying member 32 are connected to the first conveying mechanism 10 and the second conveying mechanism 20 respectively, and the guiding conveying member 32 conveys the packaging bag from the first conveying mechanism 10 to the second conveying mechanism 20 along the conveying direction.

[0049] The corner stopper 31 is located downstream of the outlet end of the first conveying mechanism 10 and faces one corner of the upstream end of the packaging bag in the first posture in the conveying direction.

[0050] During operation, after the packaging bag enters the guide mechanism 30, one corner of the front end of the packaging bag in the first position abuts against the corner stopper 31. The guide conveyor member 32 continues to convey the packaging bag and, in conjunction with the conveyor member 32, causes the packaging bag to rotate around the corner stopper 31 to transform into the second position. This entire process does not require complex mechanical movements or lengthy adjustments. Furthermore, this reversing action matches the continuous conveying speed of the conveyor belt, eliminating any interruptions or pauses in conveyance caused by the reversing process. This ensures continuous and smooth production, improving efficiency.

[0051] It should be understood that in this embodiment, the front end of the packaging bag in the first posture can be the bottom of the packaging bag, that is, when the packaging bag is conveyed by the guiding conveying member 32, its bottom is located at the front end and first contacts the corner limiting member 31.

[0052] The structure of the corner limiting member 31 is not limited, and for example, it can be set to an inverted cone structure, a spherical structure, etc.

[0053] In one embodiment, see Figure 4 The side wall of the corner limiting member 31 corresponding to the corner of one side of the packaging bag in the conveying direction is formed as a smooth surface inclined toward the second conveying mechanism 20 relative to the conveying direction, for example, it can be a plane or a curved surface, a spherical surface, etc., and the side wall of the corner limiting member 31 corresponding to the corner of one side of the packaging bag in the conveying direction is formed in the height direction as an inclined surface gradually approaching the first conveying mechanism 10 from bottom to top.

[0054] With this structure, during the transportation process of the packaging bag, when the corner of one side of the bottom wall gradually approaches the inverted conical blocking rod, the conical side will provide a gradually converging guiding path for the bag body unit, which can prevent the corner of one side of the bottom wall of the bag body unit from colliding with the corner blocking component and warping, affecting the rotation movement of the bag body unit; and the smooth surface guidance can reduce the rotation resistance of the packaging bag and improve the success rate of the packaging bag posture switching.

[0055] The guiding mechanism 30 is not limited to the above structure. In another embodiment, Figure 1 and Figure 3 As shown, the guiding mechanism 30 may further include a pressing component 33, which is liftably arranged above the guiding conveying component 32 and is located on one side of the corner limiting component 31 in a direction perpendicular to the conveying direction, and the pressing component 33 is closer to the bag body of the packaging bag in the second posture than the corner limiting component 31.

[0056] During the conveying process, when one corner of the bag abuts the corner stopper 31, the lower end of the pressing component 33 presses the upstream edge of the bag and rotates synchronously with the bag around the corner stopper 31. This prevents the bag unit from slipping or deviating from its rotation trajectory during rotation. By ensuring that the bag unit rotates at a predetermined speed and angle, the stability of the reversal is further enhanced. Even when handling heavy bags or those with low surface friction, the transfer component's pressure ensures smooth reversal.

[0057] The structure of the pressing component 33 is not limited, and it can be configured as a pressing plate, a pressing knob, etc.

[0058] In one embodiment, Figure 1 and Figure 3 As shown, the pressing component 33 includes a lifting component 332 and an extrusion rotating head 331. The lifting component 332 can be set as an electric telescopic rod, a pneumatic telescopic rod, etc., and can be specifically set on the frame 40. The extrusion rotating head 331 can be set as a turntable. When it is set on the lifting component 332, it can be rotatably connected to the lifting end of the lifting component 332.

[0059] When one corner of the packaging bag abuts the corner stopper 31, the lifting member 332, in conjunction with the lower end of the extrusion rotary head 331, presses against the upstream edge of the packaging bag, while the extrusion rotary head 331 rotates synchronously with the packaging bag. This structure allows the lifting member 332 to both drive the extrusion rotary head 331 downward to actively apply pressure and position the packaging bag, and also to lift the extrusion rotary head 331 in conjunction with the lifting member 332, eliminating interference with the packaging bag during the reversal process and ensuring the stability of the packaging bag during the transition from the first position to the second position.

[0060] The guiding mechanism 30 is not limited to the above structure. In another embodiment, Figure 3 As shown, the guide mechanism 30 may further include a squeezing conveying wheel 34 rotatably disposed above the guide conveying member 32. The squeezing conveying wheel 34 is located upstream of the corner stop member 31 in the conveying direction, and its linear velocity is the same as the conveying velocity of the guide conveying member 32. Specifically, the linear velocity of the squeezing conveying wheel 34 is the same in direction and magnitude as the conveying velocity of the guide conveying member 32. The outer peripheral edge of the squeezing conveying wheel 34 squeezes the bag body in the first posture and conveys the bag synchronously with the guide conveying member 32. During the entire conveying process, the squeezing conveying wheel 34 provides a continuous conveying force to the bag unit, allowing the bag unit to approach the transfer component at a uniform speed and in a stable state, thereby ensuring the stability of the bag unit's reversal.

[0061] The arrangement and specific structure of the squeezing and conveying wheel 34 are not limited; for example, it can be a cam rotatably mounted on the frame 40. In this embodiment, the squeezing and conveying wheel 34 is rotatably connected to the frame 40 and is located on the same side as the pressing member 33 in a direction perpendicular to the conveying direction. This ensures that the conveying force exerted by the squeezing and conveying wheel 34 is tangential to the rotational trajectory of the packaging bag, further facilitating smooth switching of the packaging bag's posture.

[0062] Furthermore, the extrusion conveyor wheel 34 is formed with an arcuate extrusion surface and a relief notch along its circumference, with the arc length of the arcuate extrusion surface being less than the length of the bag body. By adjusting the contact angle between the extrusion conveyor wheel 34 and the bag body unit, the arcuate extrusion surface contacts the bag body unit, while the relief notch avoids features such as the bag handle and bag opening, preventing the extrusion conveyor wheel 34 from excessively interfering with the bag body unit, which could cause the bag to stall or fail to change direction.

[0063] The guiding mechanism 30 is not limited to the above structure. In another embodiment, Figure 1 and Figure 5As shown, the guide mechanism 30 may further include an alignment adjustment component 35 , which is located downstream of the corner limiting member 31 in the conveying direction, and includes a limiting baffle 351 , an adjustment roller 352 and a pressing limiting component 353 .

[0064] Specifically, the limiting baffle 351 extends along the conveying direction and is adjustable in position on the frame 40, located on the side corresponding to the bottom edge of the packaging bag in the second posture. The adjusting roller 352 is rotatably disposed about the conveying direction below the guide conveying member 32, with the top of its upper end surface in the height direction protruding above the conveying surface of the guide conveying member 32. The pressing limiting component 353 is liftably connected to the frame 40 and is located above the adjusting roller 352. For example, it can be an electric pressure rod disposed above the adjusting roller 352, with a pressing head at the end of the electric pressure rod. After the packaging bag posture is changed, even if there is a deviation between the direction of the packaging bag and the conveying path of the second conveying mechanism 20, the present application provides an alignment adjustment component 35, which can adjust the position of the packaging bag perpendicular to the production direction so that it can be accurately conveyed by the second conveying mechanism 20.

[0065] Furthermore, a limit baffle 351 extends along the production direction and is adjustable in position on the frame 40, located on the side corresponding to the bottom wall of the packaging bag. During the packaging bag alignment process, the limit baffle 351 can serve as a fixed reference boundary to limit the bottom of the packaging bag. The adjustment roller 352 is rotatably arranged on the frame 40 around the production direction. When the packaging bag is conveyed to the position of the adjustment roller 352, the rotation of the adjustment roller 352 can generate a lateral thrust on the packaging bag, thereby adjusting the position of the packaging bag. At the same time, the pressing limit component 353 is connected to the frame 40 in a liftable manner and is located above the adjustment roller 352. It can press the packaging bag downward, so that the packaging bag maintains a stable posture while receiving the thrust of the adjustment roller 352, thereby preventing the packaging bag from tilting or shaking during the position adjustment process.

[0066] Furthermore, a motor for driving the adjusting roller 352 to rotate can be set on one side of the adjusting roller 352. When the packaging bag is conveyed to the position of the adjusting roller 352, the motor drives the adjusting roller 352 to rotate to generate a lateral thrust on the bag body unit. The lateral in this embodiment refers to the direction perpendicular to the production direction.

[0067] An embodiment of the present application further provides a packaging bag manufacturing device, comprising a conveying device of the above structure.

[0068] It should be understood that this type of packaging bag conveying device can be applied to various production equipment that requires reversing direction during the packaging bag production process. For example, it can be applied to production equipment that uses roll paper as raw material and produces paper packaging bags through a continuous production process. The production equipment may include two bottom sealing stations, at which the two bottom surfaces of the packaging bag are sealed separately. When sealing one of the bottom surfaces, the first conveying mechanism 10 can be used to convey the bag in a first posture, and when sealing the other bottom surface, the first conveying mechanism 10 can be used to convey the bag in a second posture. This is conducive to the independent execution of the bottom sealing action at the two stations, and is particularly suitable for production equipment with high requirements for the side wall shape of the packaging bag. The use of the conveying device in this embodiment can enable the packaging bag to be bottom-sealed in two postures, that is, the two bottom-sealing actions can be performed independently. In this way, the structural arrangement of the bottom-sealing mechanism is more flexible, and technicians can set the corresponding bottom-sealing mechanism according to the sealing requirements of different bottom surfaces, so that the corresponding bottom-sealing structure can accurately perform the bottom-sealing action. This not only avoids the interference between the bottom seals of the two bottom surfaces, but also prevents the bottom sealing mechanism from colliding with the side wall of the bag body and causing indentations when performing the bottom sealing action, thereby affecting the aesthetics of the packaging bag.

[0069] It should be noted that, in addition to the implementation methods of the present invention described in the above-mentioned specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention is introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation method. On the contrary, the purpose of introducing the utility model in conjunction with the implementation method is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide an in-depth understanding of the present utility model, the above description contains many specific details, and the present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0070] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0071] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in 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, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0072] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0073] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0074] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A packaging bag conveying device, characterized in that: include: frame; a first conveying mechanism provided on the frame and located upstream in the conveying direction, the first conveying mechanism conveying the packaging bag in a first posture in which the length direction of the packaging bag coincides with the conveying direction; a second conveying mechanism provided on the frame and located downstream in the conveying direction, the second conveying mechanism conveying the packaging bag in a second posture with the longitudinal direction of the packaging bag being perpendicular to the conveying direction; and A guiding mechanism is provided on the frame and is located between the first conveying mechanism and the second conveying mechanism in the conveying direction. The guiding mechanism receives the packaging bag from the first conveying mechanism, guides the packaging bag to change from the first posture to the second posture, and conveys the packaging bag into the second conveying mechanism.

2. The packaging bag conveying device according to claim 1, characterized in that: The guiding mechanism includes a corner limiting component and a guiding and conveying component; wherein, The two ends of the guide conveying member are respectively connected to the first conveying mechanism and the second conveying mechanism, and convey the packaging bag from the first conveying mechanism to the second conveying mechanism along the conveying direction; and The corner limiting member is located downstream of the outlet end of the first conveying mechanism and opposite to a corner of the upstream end of the packaging bag in the first posture in the conveying direction; wherein, After the packaging bag enters the guiding mechanism, one side corner of the front end of the packaging bag in the first posture abuts against the corner limiting member, the guiding and conveying member continues to convey the packaging bag and links the packaging bag to rotate around the corner limiting member to change to the second posture.

3. The packaging bag conveying device according to claim 2, characterized in that: The side wall of the corner limiting member corresponding to one corner of the packaging bag in the conveying direction is formed as a smooth surface inclined toward the second conveying mechanism relative to the conveying direction; and The side wall of the corner limiting member corresponding to one corner of the packaging bag in the conveying direction is formed in a height direction as an inclined surface gradually approaching the first conveying mechanism from bottom to top.

4. The packaging bag conveying device according to claim 2, characterized in that: The guiding mechanism further includes a pressing component, which is movably arranged above the guiding conveying component, located on one side of the corner limiting component in a direction perpendicular to the conveying direction, and closer to the bag body of the packaging bag in the second posture than the corner limiting component; wherein, When one corner of the packaging bag abuts against the corner limiting member, the lower end of the pressing component presses the upstream edge of the packaging bag and rotates around the corner limiting member synchronously with the packaging bag.

5. The packaging bag conveying device according to claim 4, characterized in that: The pressing component includes a lifting member provided on the frame and an extrusion rotating head provided on the lifting member; wherein, When one corner of the packaging bag abuts against the corner limiting member, the lifting member links the lower end of the extrusion rotating head to press the upstream edge of the packaging bag, and the extrusion rotating head and the packaging bag rotate synchronously.

6. The packaging bag conveying device according to claim 5, characterized in that: The guide mechanism further includes an extrusion conveying wheel rotatably disposed above the guide conveying member; the extrusion conveying wheel is located on the upstream side of the corner limiting member in the conveying direction, and the linear speed of the extrusion conveying wheel is the same as the conveying speed of the guide conveying member; The outer peripheral edge of the squeezing and conveying wheel squeezes the bag body of the packaging bag in the first posture and conveys the packaging bag synchronously with the guiding and conveying member.

7. The packaging bag conveying device according to claim 6, characterized in that: The extrusion conveying wheel is rotatably connected to the frame and is located on the same side as the pressing component in a direction perpendicular to the conveying direction.

8. The packaging bag conveying device according to claim 6, characterized in that: The extrusion conveying wheel is sequentially formed with an arc-shaped extrusion surface and an avoidance gap along its circumference, and the arc length of the arc-shaped extrusion surface is smaller than the length of the bag body of the packaging bag.

9. The packaging bag conveying device according to any one of claims 2 to 8, characterized in that: The guiding mechanism further includes an alignment adjustment component, which is located on the downstream side of the corner limiting member in the conveying direction, and includes a limiting baffle, an adjustment roller and a pressing limiting component; wherein, The limiting baffle extends along the conveying direction and is adjustably arranged on the frame and located on a side corresponding to the bottom edge of the packaging bag in the second posture; The adjusting roller is rotatably arranged around the conveying direction below the guide conveying member, and the upper end surface thereof at least partially protrudes from the conveying surface of the guide conveying member in the height direction; The pressing and limiting component is connected to the frame in a liftable manner and is located above the adjusting roller.

10. A packaging bag manufacturing device, characterized in that: The conveying device comprises the conveying device according to any one of claims 1 to 9.

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