Conveying channel switching mechanism for packaging bags

Abstract

The utility model discloses a packaging bag conveying channel switching mechanism which is arranged between two adjacent stations on a packaging bag production path and comprises an upstream conveying channel, a first downstream conveying channel and a second downstream conveying channel. The conveying channel switching mechanism comprises a rotating guide assembly rotationally arranged on the rack, the rotating guide assembly is located between the upstream conveying channel and the two downstream conveying channels, the rotating guide assembly can be rotationally switched between the first position and the second position, and the rotating guide assembly comprises a blocking part and a guiding part. When the rotating guide assembly is located at the first position, the upstream conveying channel communicates with the first downstream conveying channel. And when the rotating guide assembly is located at the second position, the upstream conveying channel communicates with the second downstream conveying channel. The rotating guide assembly is switched between the first position and the second position, the packaging bags can be guided to the first downstream conveying channel or the second downstream conveying channel, and sorting and selecting of the packaging bags are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making, in particular to a conveying channel switching mechanism for packaging bags. Background Art

[0002] Packaging bags are closely related to our lives. Common packaging bags include non-woven bags, paper bags, plastic bags, etc. Packaging bags have the characteristics of environmental protection and practicality, and have been vigorously promoted and used in recent years, thus promoting the rapid development of the full-automatic forming technology of packaging bags. With the development of packaging bags in China in recent years, the technology of packaging bag forming machines has become more and more mature. Existing packaging bags are basically formed by a packaging bag forming machine in one processing. During processing, a flat sheet is pressed into a cubic packaging bag through a mold and bonded into shape.

[0003] During the forming process of existing packaging bags, it is possible to produce packaging bags of different specifications or different outer packaging patterns during production. These packaging bags need to be sorted after forming, or when there are defective packaging bags, the defective packaging bags need to be excluded. However, existing packaging bag forming machines can only sort or select packaging bags manually after the packaging bags are formed. Common packaging bag forming machines cannot sort or select packaging bags after the packaging bags are formed.

[0004] Therefore, there is a problem that existing packaging bag forming machines cannot sort or select packaging bags after the packaging bags are formed. Summary of the Utility Model

[0005] The purpose of this application is to solve the problem that existing packaging bag forming machines cannot sort or select packaging bags after the packaging bags are formed.

[0006] To solve the above technical problems, an embodiment of this application discloses a conveying channel switching mechanism for packaging bags. The conveying channel switching mechanism is arranged between two adjacent workstations on the packaging bag production path. The workstation located upstream of the conveying channel switching mechanism along the packaging bag production path has an upstream conveying channel, and the workstation located downstream of the conveying channel switching mechanism along the packaging bag production path has a first downstream conveying channel and a second downstream conveying channel.

[0007] The conveying channel switching mechanism includes a rotating guiding component rotatably arranged on the frame. The rotating guiding component is located between the upstream conveying channel and the two downstream conveying channels and can be rotated and switched between a first position and a second position. The rotating guiding component includes a blocking part and a guiding part.

[0008] Among them, when the rotating guiding assembly is in the first position, the upstream conveying channel is communicated with the first downstream conveying channel. Among them, the guiding portion guides the packaging bag from the upstream conveying channel into the first downstream conveying channel, and the guiding portion and the blocking portion jointly block the entrance of the second downstream conveying channel.

[0009] When the rotating guiding assembly is in the second position, the upstream conveying channel is communicated with the second downstream conveying channel. Among them, the guiding portion and the blocking portion jointly block the entrance of the first downstream conveying channel, and the blocking portion guides the packaging bag from the upstream conveying channel into the second downstream conveying channel.

[0010] By adopting the above technical solution, a conveying channel switching mechanism is arranged between the upstream conveying channel and the two downstream conveying channels (the first downstream conveying channel and the second downstream conveying channel), and the rotating guiding assembly of the conveying channel switching mechanism can rotate and switch between the first position and the second position, so that the upstream conveying channel can be respectively communicated or conducted with the first downstream conveying channel or the second downstream conveying channel, and different packaging bags (such as qualified product packaging bags and waste product packaging bags) can be respectively guided from the upstream conveying channel to the first downstream conveying channel or the second downstream conveying channel according to actual production requirements, thereby realizing the sorting and selection of packaging bags.

[0011] Furthermore, the rotating guiding assembly includes a blocking portion and a guiding portion. When the rotating guiding assembly is in the first position or the second position, the blocking portion and the guiding portion are in different position states, and thus different packaging bags can be accurately conveyed to different downstream conveying channels through the blocking portion and the guiding portion. For example, when the rotating guiding assembly is in the first position, the upstream conveying channel is communicated with the first downstream conveying channel, and the guiding portion guides the packaging bag from the upstream conveying channel into the first downstream conveying channel, improving the efficiency of the packaging bag entering the first downstream conveying channel. The guiding portion and the blocking portion jointly block the entrance of the second downstream conveying channel, which can prevent the packaging bag from entering the second downstream conveying channel. When the rotating guiding assembly is in the second position, the upstream conveying channel is communicated with the second downstream conveying channel, and the blocking portion guides the packaging bag from the upstream conveying channel into the second downstream conveying channel. Therefore, the blocking portion and the guiding portion can ensure that the packaging bag is smoothly conveyed along the predetermined path, prevent the packaging bag from deviating or entering other channels during the conveying process, and improve the accuracy of the packaging bag during sorting or conveying channel switching.

[0012] The embodiment of the present application also discloses a conveying channel switching mechanism for packaging bags, and the blocking portion is located at the end of the guiding portion away from the upstream conveying channel.

[0013] Among them, when the rotating guiding assembly is in the first position, the guiding portion extends along the conveying direction of the entrance of the first downstream conveying channel. And when the rotating guiding assembly is in the second position, the blocking portion extends along the conveying direction of the entrance of the second downstream conveying channel.

[0014] With the above technical solution, when the rotating guiding assembly is in the first position, the guiding portion extends along the conveying direction of the inlet of the first downstream conveying channel, so that the upstream conveying channel and the first downstream conveying channel are communicated, and the guiding portion and the blocking portion jointly block the inlet of the second downstream conveying channel. The guiding portion can smoothly introduce the packaging bag into the first downstream conveying channel. When the rotating guiding assembly is in the second position, the blocking portion extends along the conveying direction of the inlet of the second downstream conveying channel, so that the upstream conveying channel and the second downstream conveying channel are communicated. The blocking portion can smoothly introduce the packaging bag into the second downstream conveying channel, and the guiding portion and the blocking portion jointly block the inlet of the first downstream conveying channel. Therefore, the guiding portion and the blocking portion can accurately guide the packaging bag into the opened downstream conveying channel and effectively block the packaging bag from entering the closed downstream conveying channel.

[0015] According to another specific embodiment of the present application, the embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. The rotating guiding assembly further includes a rotating swing arm. One end of the rotating swing arm is rotatably arranged on the frame and is located on one side of the upstream conveying channel relative to the packaging bag production path. The blocking portion and the guiding portion are fixedly connected to the other end of the rotating swing arm.

[0016] With the above technical solution, setting the rotating swing arm facilitates controlling and driving the blocking portion and the guiding portion to switch their position states.

[0017] Further preferably, the blocking portion includes a blocking plate, and the guiding portion includes a guiding plate. Moreover, the blocking plate extends obliquely from the end of the guiding plate far away from the upstream conveying channel relative to the extending direction of the guiding portion. The other end of the rotating swing arm is fixedly connected to the joint portion of the guiding plate and the blocking plate.

[0018] Even more preferably, in the conveying channel switching mechanism for a packaging bag disclosed in the present application, the included angle between the blocking plate and the guiding plate is in the range of 90° to 160°. The connecting portion between the blocking plate and the guiding plate has a transition region. Moreover, an inclined guiding portion is provided at the end of the guiding plate close to the upstream conveying channel.

[0019] With the above technical solution, the blocking portion is set as a blocking plate, and the guiding portion is set as a guiding plate, which has a simpler structure and is more convenient for installation and control. The connecting portion between the blocking plate and the guiding plate has a transition region, which can prevent the rotating guiding assembly from interfering with other components, such as rotating rollers, during the process of switching positions.

[0020] According to another specific embodiment of the present application, an embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. Among them, the conveying channel switching mechanism further includes a driving assembly, which is arranged on the frame and on the same side of the rotating swing arm as the packaging bag production path. The driving assembly is in transmission connection with the rotating swing arm and drives the rotating swing arm, the linkage blocking part and the guiding part to rotate and switch between a first position and a second position.

[0021] The driving assembly includes a driving motor and a reducer. The driving motor is fixedly arranged on the frame, the output end of the driving motor is in transmission connection with the reducer, and the reducer is in transmission connection with the rotating swing arm.

[0022] With the above technical solution, the driving motor is in transmission connection with the rotating swing arm through the reducer. The reducer can play the role of reducing the speed and increasing the torque, and can also play the role of buffering and adjusting, and can control the rotation of the rotating swing arm more quickly and accurately.

[0023] According to another specific embodiment of the present application, an embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. The conveying channel switching mechanism further includes a limiting part arranged on the frame. When the rotating guiding component is in the second position, one end of the rotating guiding component abuts against the limiting part, and the limiting part restricts the rotation position of the rotating guiding component relative to the frame.

[0024] Preferably, the limiting part includes a limiting rib arranged on the frame and on the same side of the rotating swing arm of the rotating guiding component as the packaging bag production path. Among them, when the rotating guiding component is in the second position, one side of the rotating swing arm abuts against the limiting rib.

[0025] Further preferably, the limiting part includes a limiting groove opened on the frame. The end of the limiting groove serves as a limiting stop point. A limiting protrusion is arranged at a position close to the rotating shaft on one side of the rotating swing arm of the rotating guiding component. The limiting protrusion is movably arranged in the limiting groove and can move along the limiting groove. Among them, when the rotating guiding component is in the second position, the limiting protrusion abuts against the limiting stop point of the limiting groove.

[0026] With the above technical solution, by setting the limiting part and making the rotating guiding component abut against the limiting part when the rotating guiding component is in the second position, it is ensured that during each rotation and switching process, the rotating guiding component will be abutted by the limiting part when it rotates to the second position. By setting the limiting part, the rotating guiding component can be accurately limited, so that the second position of each rotation and switching of the rotating guiding component is in the same position, and thus the packaging bag can accurately enter the second downstream conveying channel.

[0027] According to another specific embodiment of the present application, an embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. A pair of upstream output roller groups are provided at the outlet end of the upstream conveying channel, and a pair of downstream input roller groups are provided at the inlet end of the first downstream conveying channel.

[0028] Among them, the conveying gaps of the downstream input roller group and the upstream output roller group are arranged at intervals aligned with each other on the packaging bag production path. The second downstream conveying channel is located between the downstream input roller group and the upstream output roller group on the packaging bag production path, and the extending directions of the first downstream conveying channel and the second downstream conveying channel are perpendicular.

[0029] When the rotating guiding component is in the first position, the guiding portion is located between the downstream input roller group and the upstream output roller group along the packaging bag production path and partially covers the inlet end of the second downstream conveying channel. When the rotating guiding component is in the second position, the guiding portion and the blocking portion jointly block the inlet of the conveying gap of the downstream input roller group, and the blocking portion is closer to the second downstream conveying channel than the guiding portion and extends along the conveying direction of the second downstream conveying channel.

[0030] Moreover, the interval dimension between the upstream output roller group and the downstream input roller group on the packaging bag production path is smaller than the length dimension of the packaging bag to be conveyed.

[0031] By adopting the above technical solution, a pair of upstream output roller groups are provided at the outlet end of the upstream conveying channel, and a pair of downstream input roller groups are provided at the inlet end of the first downstream conveying channel. The packaging bag is conveyed downstream between the pair of upstream output roller groups, and the transportation stability is higher. The guiding portion is located between the downstream input roller group and the upstream output roller group along the packaging bag production path, and a conveying path for the packaging bag is formed between the upstream output roller group and the downstream input roller group. The packaging bag can be conveyed to the downstream input roller group along the conveying path formed by the guiding portion. When the rotating guiding component is in the second position, the guiding portion and the blocking portion will jointly block the inlet of the conveying gap of the downstream input roller group, so that the packaging bag is conveyed to the second downstream conveying channel.

[0032] According to another specific embodiment of the present application, an embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. A plurality of conveyor belts are wound around the upstream output roller group. The plurality of conveyor belts are arranged at intervals along the length direction of the upstream output roller group. The plurality of conveyor belts extend along the packaging bag production path and convey the packaging bag.

[0033] Moreover, at least one camera is provided at the upstream end of the plurality of conveyor belts, and the camera is arranged facing one side of the plurality of conveyor belts.

[0034] With the above technical solution, a plurality of conveyor belts are wound around the upstream output roller group and are arranged at intervals along the length direction of the upstream output roller group. Therefore, there will be gaps between adjacent conveyor belts. At least one camera is provided at the upstream end of the plurality of conveyor belts. The camera is arranged facing the side of the plurality of conveyor belts. The camera can capture the packaging bag through the gap between adjacent conveyor belts, so as to accurately judge and locate the position of the packaging bag. When the packaging bag is about to be conveyed to the upstream output roller group, the rotating guide assembly is adjusted to the first position or the second position according to the need, and the rotation timing of the rotating guide assembly can be accurately controlled, thereby improving the accuracy of channel switching and cooperatively conveying the packaging bag into the corresponding channel. Brief Description of the Drawings

[0035] Figure 1 FIG. is a schematic structural diagram of a conveying channel switching mechanism for a packaging bag provided by an embodiment of the present invention;

[0036] Figure 2 FIG. is a schematic structural diagram of a rotating guide assembly of a conveying channel switching mechanism for a packaging bag provided by an embodiment of the present invention;

[0037] Figure 3 FIG. is a schematic diagram of the rotating guide assembly of the conveying channel switching mechanism for a packaging bag provided by an embodiment of the present invention when in the first position;

[0038] Figure 4 FIG. is a schematic diagram of the rotating guide assembly of the conveying channel switching mechanism for a packaging bag provided by an embodiment of the present invention when in the second position;

[0039] Figure 5 FIG. is a top view of a conveying channel switching mechanism for a packaging bag provided by an embodiment of the present invention.

[0040] Description of the Reference Numerals:

[0041] 100, conveying channel switching mechanism;

[0042] 110, rotating guide assembly;

[0043] 111, blocking portion; 112, guiding portion; 113, rotating swing arm; 1131, rotating shaft; 114, transition region; 115, inclined guiding portion;

[0044] 120, driving assembly;

[0045] 121, driving motor; 122, speed reducer;

[0046] 200, upstream conveying channel; 210, upstream output roller group; 220, conveyor belt;

[0047] 300, first downstream conveying channel; 310, downstream input roller group;

[0048] 400, the second downstream conveying channel;

[0049] 500, the frame. Detailed implementation manner

[0050] In the prior art, the packaging bag forming technology has achieved automated production, and there are also many packaging bag forming machines. However, the sorting process still relies on manual operation. For example, when it is necessary to sort the packaging bags of products with different specifications or to select and exclude defective products, the existing equipment basically requires operators to manually select or stop the machine to adjust the equipment. Especially on a continuous production line, manual sorting not only increases the labor intensity but also affects the overall efficiency, and there is also a possibility of mixing qualified products and defective products, making it impossible to achieve precise sorting. Therefore, there is a problem that the packaging bag forming machine in the prior art cannot sort or select the packaging bags after the packaging bags are formed.

[0051] To solve the problem that the packaging bag forming machine in the prior art cannot sort or select the packaging bags after the packaging bags are formed, the present application discloses a conveying channel switching mechanism for packaging bags, and the conveying channel switching mechanism is arranged between two adjacent workstations on the packaging bag production path. There is an upstream conveying channel at the upstream workstation, and there are two non - communicating first downstream conveying channels and a second downstream conveying channel at the downstream workstation. The conveying channel switching mechanism includes a rotating guiding component, and the rotating guiding component can switch between a first position and a second position, so as to unidirectionally connect the upstream conveying channel with one of the first downstream conveying channel and the second downstream conveying channel. That is to say, when the upstream conveying channel is connected to one of the first downstream conveying channel and the second downstream conveying channel, the packaging bag will enter the connected downstream conveying channel. For example, when the rotating guiding component is in the first position, the upstream conveying channel is connected to the first downstream conveying channel, and when the rotating guiding component is in the second position, the upstream conveying channel is connected to the second downstream conveying channel. Therefore, it can ensure that different packaging bags are sorted and conveyed to different downstream conveying channels.

[0052] It should be noted that the packaging bags referred to in the present application can be various common bag types, such as non - woven bags, paper bags, plastic bags, cloth bags, aluminum foil bags, etc., and the present embodiment does not make specific limitations on this. Next, a detailed description of the conveying channel switching mechanism for packaging bags disclosed in the present application will be given:

[0053] The implementation manner of this embodiment discloses a conveying channel switching mechanism for a packaging bag. The conveying channel switching mechanism 100 is arranged between two adjacent workstations on the packaging bag production path. The workstation located upstream of the conveying channel switching mechanism 100 along the packaging bag production path has an upstream conveying channel 200, and the workstations located downstream of the conveying channel switching mechanism 100 along the packaging bag production path have a first downstream conveying channel 300 and a second downstream conveying channel 400.

[0054] In this embodiment, two adjacent workstations on the packaging bag production path are preferably arranged on the conveying path after the packaging bag is formed. Because after being arranged on the conveying path after the packaging bag is formed, when sorting or separating the packaging bags, the packaging bags are already formed, and only the packaging bags are sorted or distinguished. For example, sorting finished packaging bags of different sizes, or removing waste packaging bags, etc.

[0055] Furthermore, in this embodiment, the first downstream conveying channel 300 and the second downstream conveying channel 400 located downstream of the conveying channel switching mechanism 100 are two conveying channels extending in different directions. For example, see Figure 1 (the conveying direction of the packaging bag is from right to left in Figure 1 ), in a preferred implementation manner provided in this embodiment, the upstream conveying channel 200 extends in the horizontal direction, the first downstream conveying channel 300 also extends in the horizontal direction and is located downstream of the upstream conveying channel 200, and the second downstream conveying channel 400 extends in the vertical direction and is also located downstream of the upstream conveying channel 200. Those skilled in the art can adjust and design according to actual needs, and this embodiment does not make specific limitations on this.

[0056] Please refer to Figure 1 , the conveying channel switching mechanism 100 includes a rotating guiding component 110 rotatably arranged on the frame 500. The rotating guiding component 110 is located between the upstream conveying channel 200 and the two downstream conveying channels and can be rotated and switched between a first position and a second position. The rotating guiding component 110 includes a blocking portion 111 and a guiding portion 112.

[0057] In this embodiment, the rotating guiding component 110 is rotatably arranged on the frame 500. For example, it can be rotatably arranged on the frame 500 through a rotating shaft, bearings, etc. The rotating guiding component 110 can be driven by a motor or other driving components. For example, when it is set as a motor, the power output end of the motor drives the rotating guiding component 110 to rotate, and further drives the rotating guiding component 110 between the first position and the second position.

[0058] Furthermore, refer to Figure 1 and Figure 2, the blocking part 111 is located at the end of the guiding part 112 away from the upstream conveying channel. Preferably, the blocking part 111 and the guiding part 112 are arranged in a plate-like structure, which has a simple structure and is convenient for rotation control, and has a small volume, facilitating installation between the upstream conveying channel 200 and the two downstream conveying channels.

[0059] Furthermore, taking the solution where the rotation guiding assembly 110 disclosed in this embodiment includes the blocking part 111 and the guiding part 112 as an example, the schematic diagrams of the state structures of the rotation guiding assembly 110 at the first position and the second position can be seen in Figure 3 and Figure 4 , for example Figure 3 is a schematic diagram when the rotation guiding assembly 110 is in the first position, Figure 4 is a schematic diagram when the rotation guiding assembly 110 is in the second position.

[0060] Among them, please refer to Figure 1 and Figure 3 , when the rotation guiding assembly 110 is in the first position, the upstream conveying channel 200 is communicated with the first downstream conveying channel 300, and the guiding part 112 extends along the inlet conveying direction of the first downstream conveying channel 300. Among them, the guiding part 112 guides the packaging bags from the upstream conveying channel 200 into the first downstream conveying channel 300, and the guiding part 112 and the blocking part 111 jointly block the inlet of the second downstream conveying channel 400.

[0061] When the rotation guiding assembly 110 is in the first position, the guiding part 112 extends along the inlet conveying direction of the first downstream conveying channel 300, so that the upstream conveying channel 200 is communicated with the first downstream conveying channel 300, and the guiding part 112 and the blocking part 111 jointly block the inlet of the second downstream conveying channel 400, and the guiding part 112 can directly and smoothly introduce the packaging bags into the first downstream conveying channel 300.

[0062] Please refer to Figure 4 , when the rotation guiding assembly 110 is in the second position, the upstream conveying channel 200 is communicated with the second downstream conveying channel 400. Among them, the guiding part 112 and the blocking part 111 jointly block the inlet of the first downstream conveying channel 300, and the blocking part 111 guides the packaging bags from the upstream conveying channel 200 into the second downstream conveying channel 400. It should be noted that it can also be arranged that the back of the guiding part 112 and the blocking part 111 jointly guide the packaging bags into the second downstream conveying channel 400. Refer to Figure 4 , the guiding part 112 and the blocking part 111 are in Figure 4When in the position, since the packaging bag has a certain flexibility and ductility, it will adhere to the guiding part 112 and the blocking part 111 during the conveying process and be guided by the blocking part 111 to the second downstream conveying channel 400. When the rotating guiding assembly 110 is in the second position, the blocking part 111 extends along the conveying direction of the entrance of the second downstream conveying channel 400.

[0063] When the rotating guiding assembly 110 is in the second position, the blocking part 111 extends along the conveying direction of the entrance of the second downstream conveying channel 400, so that the upstream conveying channel 200 and the second downstream conveying channel 400 are communicated. The blocking part 111 can smoothly introduce the packaging bag into the second downstream conveying channel 400, and the guiding part 112 and the blocking part 111 jointly block the entrance of the first downstream conveying channel 300. Therefore, the guiding part 112 and the blocking part 111 can accurately guide the packaging bag into the communicated or opened downstream conveying channel and effectively block the packaging bag from entering the closed downstream conveying channel.

[0064] Further, taking the sorting process of waste packaging bags and qualified packaging bags as an example for illustration:

[0065] For example, the first downstream conveying channel 300 is a conveying channel for qualified packaging bags, and the second downstream conveying channel 400 is a conveying channel for waste packaging bags. The rotating guiding assembly 110 is normally in the first position. Please refer to Figure 1 and Figure 3 , the guiding part 112 extends along the conveying direction of the entrance of the first downstream conveying channel 300, so that the upstream conveying channel 200 and the first downstream conveying channel 300 are communicated. The qualified packaging bags are conveyed along the Figure 3 direction indicated by the arrow in, so that the qualified packaging bags enter the first downstream conveying channel 300. And at this time, the guiding part 112 and the blocking part 111 jointly block the entrance of the second downstream conveying channel 400 to ensure that the qualified packaging bags smoothly enter the conveying channel for qualified packaging bags.

[0066] When a waste packaging bag is detected, the rotating guiding assembly 110 rotates to the second position. Please refer to Figure 4 , at this time, the upstream conveying channel 200 is communicated with the second downstream conveying channel 400. The guiding part 112 and the blocking part 111 jointly block the entrance of the first downstream conveying channel 300, and the guiding part 112 and the blocking part 111 guide the packaging bag from the upstream conveying channel 200 into the second downstream conveying channel 400. Refer to the route indicated by the arrow in Figure 4 . When the waste packaging bag is conveyed along the upstream conveying channel 200, the waste packaging bag first abuts against the rotating guiding assembly 110 and then is guided by the guiding part 112 and the blocking part 111 into the second downstream conveying channel 400.

[0067] With this structural design, by arranging a rotating guiding component 110 between the upstream conveying channel 200 and two downstream conveying channels (the first downstream conveying channel 300 and the second downstream conveying channel 400), and the rotating guiding component 110 can rotate and switch between the first position and the second position, it is possible to quickly and flexibly guide the packaging bags from the upstream conveying channel 200 to the first downstream conveying channel 300 or the second downstream conveying channel 400 according to the actual production requirements, so as to realize the sorting and selection of the packaging bags.

[0068] Furthermore, the rotating guiding component 110 is arranged to include a blocking part 111 and a guiding part 112, and when the rotating guiding component 110 is in the first position or the second position, the blocking part 111 and the guiding part 112 are in different position states, so that different packaging bags can be accurately conveyed to different downstream conveying channels through the blocking part 111 and the guiding part 112. For example, when the rotating guiding component 110 is in the first position, the upstream conveying channel 200 is communicated with the first downstream conveying channel 300, and the guiding part 112 guides the packaging bags from the upstream conveying channel 200 into the first downstream conveying channel 300, improving the efficiency of the packaging bags entering the first downstream conveying channel 300. The guiding part 112 and the blocking part 111 jointly block the entrance of the second downstream conveying channel 400, which can prevent the packaging bags from entering the second downstream conveying channel 400. When the rotating guiding component 110 is in the second position, the upstream conveying channel 200 is communicated with the second downstream conveying channel 400, and the guiding part 112 guides the packaging bags from the upstream conveying channel 200 into the second downstream conveying channel 400. Therefore, the blocking part 111 and the guiding part 112 can ensure that the packaging bags are smoothly conveyed along the predetermined path, prevent the packaging bags from deviating or entering other channels during the conveying process, and improve the accuracy when switching the conveying of the packaging bags.

[0069] Further preferably, please refer to Figure 2 , the blocking part 111 includes a blocking plate, and the guiding part 112 includes a guiding plate. Moreover, the blocking plate extends obliquely from the end of the guiding plate away from the upstream conveying channel relative to the extending direction of the guiding part 112, and the included angle between the blocking plate and the guiding plate is within the range of 90° to 160°. An inclined guiding part 115 is arranged at the end of the guiding plate close to the upstream conveying channel 200. There is a transition region 114 at the connecting part of the blocking plate and the guiding plate. The rotating guiding component 110 further includes a rotating swing arm 113. The rotating swing arm 113 is rotatably arranged on the frame 500 through a rotating shaft 1131, and the other end of the rotating swing arm 113 is fixedly connected to the part where the guiding plate and the blocking plate are connected. Therefore, the rotating swing arm 113 can drive the blocking part 111 and the guiding part 112 to rotate to switch positions.

[0070] It should be noted that in this embodiment, one rotating swing arm 113 is provided on each side of the blocking portion 111 and the guiding portion 112. The rotating swing arm 113 is rotatably arranged on the frame 500 through a rotating shaft 1131, and Figure 2 no other structures are provided below the shown blocking portion 111 and guiding portion 112. The blocking portion 111 and the guiding portion 112 are arranged as plate-like structures, which is convenient for guiding the packaging bag when the blocking portion 111 and the guiding portion 112 are in the first position and the second position.

[0071] Specifically, the included angle between the blocking plate and the guiding plate can be, for example, 90°, 120°, 140°, 160° or any value within the range of 90° to 160°. This embodiment does not make specific limitations on this.

[0072] Please refer to Figure 2 and Figure 4 , the connecting portion of the blocking plate and the guiding plate has a transition region 114. On the one hand, it can prevent the rotating guiding assembly 110 from interfering with other components, such as the rotating roller, during the process of switching positions. On the other hand, when the rotating guiding assembly 110 rotates to the second position, the inner side of the transition region 114 can also guide the packaging bag into the second downstream conveying channel 400.

[0073] Specifically, the transition region 114 between the blocking plate and the guiding plate can be set as an inclined transition region or an arc transition region. Those skilled in the art can design and adjust according to actual needs. This embodiment does not make specific limitations on this.

[0074] An inclined guiding portion 115 is provided at the end of the guiding plate close to the upstream conveying channel 200. While guiding the packaging bag, the inclined guiding portion 115 can also prevent the guiding portion 112 from interfering with the rotating roller.

[0075] With this structural design, the blocking portion 111 is set as a blocking plate, and the guiding portion 112 is set as a guiding plate, with a simpler structure and more convenient installation and control.

[0076] According to another specific implementation manner of this embodiment, an implementation manner of the present application discloses a conveying channel switching mechanism for a packaging bag. Please refer to Figure 5 , the rotating guiding assembly 110 further includes a rotating swing arm 113. One end of the rotating swing arm 113 is rotatably arranged on the frame 500 and is located on one side of the upstream conveying channel 200 relative to the packaging bag production path. The blocking portion 111 and the guiding portion 112 are fixedly connected to the other end of the rotating swing arm 113.

[0077] With the design of this structure, the rotating swing arm 113 is provided to facilitate the control of the switching of the position states of the blocking portion 111 and the guiding portion 112. And the rotating swing arm 113 can be set to various structures as long as it can conveniently drive the rotating guiding assembly 110 to rotate. In this embodiment, the rotating swing arm 113 can be rotatably arranged on the frame 500 through a rotating shaft, bearings, etc., and this embodiment does not make specific limitations on this.

[0078] According to another specific implementation manner of this embodiment, an embodiment of the present application discloses a conveying channel switching mechanism for a packaging bag. The conveying channel switching mechanism 100 further includes a driving assembly 120. Please refer to Figure 5 , the driving assembly 120 is arranged on the frame 500 and is on the same side of the production path of the packaging bag as the rotating swing arm 113. The driving assembly 120 is in transmission connection with the rotating swing arm 113 and drives the rotating swing arm 113, the linkage blocking portion 111 and the guiding portion 112 to rotate and switch between a first position and a second position.

[0079] In one of the preferred embodiments, the driving assembly 120 includes a driving motor 121 and a speed reducer 122. The driving motor 121 is fixedly arranged on the frame 500. The output end of the driving motor 121 is in transmission connection with the speed reducer 122, and the speed reducer 122 is in transmission connection with the rotating swing arm 113.

[0080] In this embodiment, the driving motor 121 and the speed reducer 122 are provided to control the rotation of the rotating swing arm 113, the blocking portion 111 and the guiding portion 112. Therefore, those skilled in the art can also adopt other transmission methods to make the rotating swing arm 113, the blocking portion 111 and the guiding portion 112 rotate. For example, the driving assembly 120 can be set as a driving motor 121 and a gear assembly. The input gear in the driving motor 121 and the gear assembly meshes, and the output gear in the gear assembly meshes with the rotating swing arm 113 and drives the rotating swing arm 113 to rotate. The driving assembly 120 can also be set as a driving motor 121 and a synchronous belt assembly. The driving pulley in the synchronous belt assembly is connected to the driving motor 121, the driven pulley is connected to the rotating swing arm 113, and the synchronous belt is wound between the driving pulley and the driven pulley and drives the rotating swing arm 113 to rotate. Those skilled in the art can design and select according to actual needs, and this embodiment does not make specific limitations on this.

[0081] Furthermore, the rotation angle of the rotating swing arm 113 can be adjusted according to actual design and needs. For example, in one implementation, the rotation angle can be any value within 15°~45°, such as 15°, 30°, 45°, etc. When the rotation angle of the rotating swing arm 113 is small, while satisfying the position switching of the blocking part 111 and the guiding part 112, the time required for the blocking part 111 and the guiding part 112 to switch positions is less, so the efficiency of the rotation switching position is higher. The specific rotation angle can be designed and adjusted by those skilled in the art according to actual needs, and this embodiment does not make specific limitations on this.

[0082] With the above-mentioned structural design, the drive motor 121 is connected to the rotating swing arm 113 through the reducer 122. The reducer 122 can reduce the rotation speed and increase the torque. The reducer 122 can also play a role in buffering and regulating, reducing the impact of these shocks and load changes on the drive motor 121.

[0083] According to another specific embodiment of the present application, the embodiment of the present application discloses a conveying channel switching mechanism for packaging bags. The conveying channel switching mechanism 100 also includes a limiting portion (not shown in the figure) arranged on the frame 500. When the rotating guide assembly 110 is in the second position, one end of the rotating guide assembly 110 abuts against the limiting portion, and the limiting portion limits the rotation position of the rotating guide assembly 110 relative to the frame 500.

[0084] In this embodiment, a limiting portion is provided, and when the rotating guide assembly 110 is in the second position, the rotating guide assembly 110 and the limiting portion abut against each other, ensuring that during each rotation switching process, the rotating guide assembly 110 will be abutted by the limiting portion when it rotates to the second position. By providing the limiting portion, the rotating guide assembly 110 can be accurately limited, so that the second position of the rotating guide assembly 110 is in the same position each time it rotates and switches, thereby allowing the packaging bag to accurately enter the second downstream conveying channel 400.

[0085] Therefore, the limiting portion can be set to any structure or component that can achieve limiting. For example, the limiting portion can be a limiting protrusion, a limiting groove, a limiting lever, etc., or it can be a stop and limit for other components of the rotating guide assembly 110. Those skilled in the art can design it according to actual needs, and this embodiment does not make specific limitations on this.

[0086] For example, in one of the preferred implementation manners, the limiting portion may be a limiting rib (not shown in the figure) provided on the frame 500 and on the same side of the rotating swing arm 113 of the rotating guiding assembly 110 as the production path of the packaging bag. When the rotating guiding assembly 110 is in the second position, one side of the rotating swing arm 113 abuts against the limiting rib, that is, the limiting portion is set as the limiting rib to stop and limit the rotating swing arm 113.

[0087] For example, in another preferred implementation manner, the limiting portion may be a limiting groove (not shown in the figure) opened on the frame 500. The end of the limiting groove serves as a limiting stop point. A limiting protrusion is provided at a position near the rotating shaft on one side of the rotating swing arm 113 of the rotating guiding assembly 110. The limiting protrusion is movably arranged in the limiting groove and can move along the limiting groove. When the rotating guiding assembly 110 is in the second position, the limiting protrusion abuts against the limiting stop point of the limiting groove. For example, the limiting groove may be set as an arc-shaped groove, and the limiting protrusion rotates in the arc-shaped groove and abuts against the limiting stop point of the arc-shaped groove. The arc-shaped groove may be provided with two limiting stop points, one of which corresponds to the rotating guiding assembly 110 being in the first position, and the other corresponds to the rotating guiding assembly 110 being in the second position.

[0088] According to another specific implementation manner of this embodiment, please refer to Figure 5 , a pair of upstream output roller groups 210 are provided at the outlet end of the upstream conveying channel 200, and a pair of downstream input roller groups 310 are provided at the inlet end of the first downstream conveying channel 300.

[0089] Among them, referring to Figure 1 and Figure 3 , the conveying gaps of the downstream input roller group 310 and the upstream output roller group 210 are spaced apart from each other in alignment on the production path of the packaging bag. The second downstream conveying channel 400 is located between the downstream input roller group 310 and the upstream output roller group 210 on the production path of the packaging bag, and the extending direction of the first downstream conveying channel 300 is perpendicular to the extending direction of the second downstream conveying channel 400.

[0090] Please refer to Figure 3 , when the rotating guiding assembly 110 is in the first position, the guiding portion 112 extends along the production path of the packaging bag between the downstream input roller group 310 and the upstream output roller group 210 and partially covers the inlet end of the second downstream conveying channel 400. Please refer to Figure 4 , when the rotating guiding assembly 110 is in the second position, the guiding portion 112 and the blocking portion 111 jointly block the inlet of the conveying gap of the downstream input roller group 310, and the blocking portion 111 is closer to the second downstream conveying channel 400 than the guiding portion 112 and extends along the conveying direction of the second downstream conveying channel 400.

[0091] Furthermore, the spacing between the upstream output roller set 210 and the downstream input roller set 310 on the packaging bag production path is smaller than the length of the packaging bag being conveyed.

[0092] Specifically, in this embodiment, the interval dimension along the bag production path is smaller than the length of the conveyed bag. This ensures smooth conveyance of the bag from the upstream output roller set 210 to the downstream input roller set 310, preventing the bag from falling into the second downstream conveying channel 400 through the interval between the two roller sets along the production path. The interval dimension along the bag production path being smaller than the length of the conveyed bag can be less than 10 mm, 20 mm, 30 mm, etc., and this embodiment does not impose any specific limitation on this.

[0093] Also, see Figure 2 and Figure 4 The rotating guide assembly 110 is configured to include a guiding portion 112 and an inclined blocking portion 111. When the rotating guide assembly 110 is in the second position, the blocking portion 111 can guide the packaging bag while preventing the packaging bag from being rolled into the downstream input roller group 310, thereby avoiding the problem that the waste packaging bag is brought into the first downstream conveying channel 300 by the downstream input roller group 310 when the waste packaging bag is removed from the second downstream conveying channel 400.

[0094] With this structural design, a pair of upstream output rollers 210 are provided at the outlet end of the upstream conveying channel 200, and a pair of downstream input rollers 310 are provided at the inlet end of the first downstream conveying channel 300. The packaging bags are conveyed downstream between the pair of upstream output rollers 210, providing greater transport stability. The guide portion 112 extends along the packaging bag production path and is located between the downstream input rollers 310 and the upstream output rollers 210. The upstream output rollers 210 and the downstream input rollers 310 form a conveying path for the packaging bags, and the packaging bags are conveyed to the downstream input rollers 310 along the conveying path established by the guide portion 112. When the rotating guide assembly 110 is in the second position, the guide portion 112 and the blocking portion 111 jointly block the entrance to the conveying gap between the downstream input rollers 310, allowing the packaging bags to be conveyed to the second downstream conveying channel 400.

[0095] According to another specific embodiment of the present application, a bag conveying channel switching mechanism is disclosed. Multiple conveyor belts 220 are wound around an upstream output roller assembly 210. These conveyor belts 220 are spaced apart along the length of the upstream output roller assembly 210. These conveyor belts 220 extend along the bag production path and convey the bags. Furthermore, at least one camera (not shown) is positioned at the upstream end of the conveyor belts 220, facing one side of the conveyor belts 220.

[0096] For example, 6, 8, 9 or other numbers of conveyor belts 220 are wound around the upstream output roller group 210 at intervals. Adjacent conveyor belts 220 are arranged at intervals and have gaps. With such a design, the camera can capture the position of the packaging bag through the gap between two adjacent conveyor belts 220. The installation position of the camera can be set and adjusted according to actual needs, and this embodiment does not make specific limitations on this.

[0097] With the design of this structure, a plurality of conveyor belts 220 are wound around the upstream output roller group 210 and are arranged at intervals along the length direction of the upstream output roller group 210. Therefore, there will be gaps between two adjacent conveyor belts 220. At least one camera is arranged at the upstream end of the plurality of conveyor belts 220, and the camera is arranged facing the side of the plurality of conveyor belts 220. The camera can capture the packaging bag through the gap between two adjacent conveyor belts 220, so as to accurately judge and locate the position of the packaging bag. When the packaging bag is about to be conveyed to the upstream output roller group 210, the rotation guiding assembly 110 is adjusted to the first position or the second position according to requirements, and the rotation timing of the rotation guiding assembly 110 can be accurately controlled, thereby improving the accuracy of channel switching and cooperatively conveying the packaging bag into the corresponding channel.

[0098] For example, the qualified product packaging bag is to be conveyed to the first downstream conveying channel 300, and the waste product packaging bag is to be conveyed to the second downstream conveying channel 400. When the camera captures the qualified product packaging bag and judges and locates the position of the qualified product packaging bag, the rotation guiding assembly 110 is in the first position. When the waste product packaging bag is conveyed from the upstream, when the camera captures the waste product packaging bag and judges and locates the position of the waste product packaging bag, the rotation guiding assembly 110 switches to the second position, so that the waste product packaging bag is conveyed to the second downstream conveying channel 400.

[0099] It should be noted that in addition to the implementation manners of the present invention described in the above specific embodiments, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is introduced in conjunction with the preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details are included in the above description. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or ambiguity of the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0100] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0101] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0102] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0103] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0104] Although the present utility model has been illustrated and described by referring to some preferred embodiments thereof, those of ordinary skill in the art should understand that the above content is a further detailed description of the present utility model in combination with specific embodiments, and it cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. Those skilled in the art can make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present utility model.

Claims

1. A conveying channel switching mechanism for a packaging bag, characterized in that The conveying channel switching mechanism is arranged between two adjacent workstations on the packaging bag production path; The workstation located upstream of the conveying channel switching mechanism along the packaging bag production path has an upstream conveying channel, and the workstation located downstream of the conveying channel switching mechanism along the packaging bag production path has a first downstream conveying channel and a second downstream conveying channel; in The conveying channel switching mechanism includes a rotating guide assembly rotatably provided on a frame, the rotating guide assembly is located between the upstream conveying channel and the two downstream conveying channels, and can be rotated and switched between a first position and a second position, the rotating guide assembly including a blocking portion and a guiding portion; in When the rotating guide assembly is in the first position, the upstream conveying channel is connected to the first downstream conveying channel, wherein the guide portion guides the packaging bags from the upstream conveying channel into the first downstream conveying channel, and the guide portion and the blocking portion jointly block the entrance of the second downstream conveying channel; When the rotating guide assembly is in the second position, the upstream conveying channel is connected to the second downstream conveying channel, wherein the guiding portion and the blocking portion jointly block the entrance of the first downstream conveying channel, and the blocking portion guides the packaging bag from the upstream conveying channel into the second downstream conveying channel.

2. The conveying channel switching mechanism of the packaging bag according to claim 1, characterized in that, The blocking portion is located at the end of the guiding portion away from the upstream conveying channel; When the rotating guide assembly is in the first position, the guide portion extends along the inlet conveying direction of the first downstream conveying channel; and When the rotating guide assembly is in the second position, the blocking portion extends along the inlet conveying direction of the second downstream conveying channel.

3. The conveying channel switching mechanism of the packaging bag according to claim 1, wherein, The rotating guide assembly also includes a rotating swing arm, one end of which is rotatably disposed on the frame and is located on one side of the upstream conveying channel relative to the packaging bag production path, and the blocking part and the guiding part are fixedly connected to the other end of the rotating swing arm.

4. The conveying channel switching mechanism of the packaging bag according to claim 3, wherein, The blocking portion includes a blocking plate, and the guiding portion includes a guiding plate; and The blocking plate is extended from the end of the guide plate away from the upstream conveying channel and is inclined relative to the extension direction of the guide plate; The other end of the rotating swing arm is fixedly connected to the portion where the guide plate and the blocking plate are connected.

5. The conveying channel switching mechanism of the packaging bag according to claim 4, wherein, The angle between the blocking plate and the guide plate is in the range of 90° to 160°, and the connection portion between the blocking plate and the guide plate has a transition area; and The guide plate is provided with an inclined guide portion at an end portion close to the upstream conveying passage.

6. The conveying channel switching mechanism of the packaging bag according to claim 5, wherein in The conveying channel switching mechanism further includes a drive assembly, which is disposed on the frame and is located on the same side of the packaging bag production path as the rotating swing arm. The drive assembly is in transmission connection with the rotating swing arm and drives the rotating swing arm, the blocking portion, and the guiding portion to rotate and switch between the first position and the second position. and The driving assembly includes a driving motor and a speed reducer; wherein, the driving motor is fixedly arranged on the frame, the output end of the driving motor is in transmission connection with the speed reducer, and the speed reducer is in transmission connection with the rotating swing arm.

7. The conveying channel switching mechanism of the packaging bag according to any one of claims 1 to 6, characterized in that The conveying channel switching mechanism further includes a limiting part arranged on the frame. When the rotating guiding assembly is in the second position, one end of the rotating guiding assembly abuts against the limiting part, and the limiting part restricts the rotating position of the rotating guiding assembly relative to the frame.

8. The conveying channel switching mechanism of a packaging bag according to claim 7, wherein: The limiting part includes a limiting rib arranged on the frame and on the same side of the rotating swing arm of the rotating guiding assembly in the production path of the packaging bag; wherein When the rotating guiding assembly is in the second position, one side of the rotating swing arm abuts against the limiting rib.

9. The conveying channel switching mechanism of a packaging bag according to claim 7, wherein: The limiting part includes a limiting groove opened on the frame, and the end of the limiting groove serves as a limiting stop point. A limiting protrusion is arranged at a position close to the rotating shaft on one side of the rotating swing arm of the rotating guiding assembly, and the limiting protrusion is movably arranged in the limiting groove and can move along the limiting groove; wherein When the rotating guiding assembly is in the second position, the limiting protrusion abuts against the limiting stop point of the limiting groove.

10. The conveying channel switching mechanism of the packaging bag according to claim 7, characterized in that, A pair of upstream output roller groups are arranged at the outlet end of the upstream conveying channel, and a pair of downstream input roller groups are arranged at the inlet end of the first downstream conveying channel; wherein The conveying gaps of the downstream input roller group and the upstream output roller group are arranged at intervals aligned with each other in the production path of the packaging bag. The second downstream conveying channel is located between the downstream input roller group and the upstream output roller group in the production path of the packaging bag, and the extending direction of the first downstream conveying channel is perpendicular to the extending direction of the second downstream conveying channel; Wherein When the rotating guiding assembly is in the first position, the guiding part extends along the production path of the packaging bag between the downstream input roller group and the upstream output roller group and partially covers the inlet end of the second downstream conveying channel; When the rotating guiding assembly is in the second position, the guiding part and the blocking part jointly block the inlet of the conveying gap of the downstream input roller group, and the blocking part is closer to the second downstream conveying channel than the guiding part and extends along the conveying direction of the second downstream conveying channel; and The interval dimension between the upstream output roller group and the downstream input roller group in the production path of the packaging bag is smaller than the length dimension of the conveyed packaging bag.

11. The conveying channel switching mechanism of the packaging bag according to claim 10, characterized in that, A plurality of conveyor belts are wound around the upstream output roller group, and the plurality of conveyor belts are arranged at intervals along the length direction of the upstream output roller group. The plurality of conveyor belts extend along the production path of the packaging bag and convey the packaging bag; and At least one camera is arranged at the upstream end of the plurality of conveyor belts, and the camera is arranged facing one side of the plurality of conveyor belts.

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