Bag inserting machine

Abstract

The invention discloses a bag inserting machine, and relates to the technical field of valve bag packaging, the bag inserting machine comprises a main storage table, a preparation storage table, a sensing device, a feeding mechanism and an adsorption mechanism, the main storage table is provided with a storage station for storing valve bag piles, and the main storage table is provided with adsorption holes; the preparation storage table is used for pre-storing valve bag stacks; the sensing device is used for detecting whether a valve bag is stored at the storage station or not; the feeding mechanism is used for transferring the valve bag pile to the main storage table from the preparation storage table when the sensing device detects that the valve bags are not stored at the storage station; the adsorption mechanism comprises a positioning suction cup and a vacuum generator, and the positioning suction cup is arranged at the adsorption hole, connected with the vacuum generator and used for adsorbing the valve bags located on the bottommost layer of the valve bag stack at the storage station. According to the valve bag stacking device, normal connection of different valve bag stacks at the storage station can be ensured, the frequency of false triggering of the sensing device is reduced, the downtime is shortened, and the production efficiency is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of valve bag packaging, and more specifically, to a bag inserting machine. Background Art

[0002] The bag inserter is used to achieve fully automatic filling of valve bags. Specifically, it uses a negative pressure suction cup to suck up the stacked valve bags one by one, and uses a swing arm cylinder to drive the suction cup rod to swing to open the bag mouth. The servo-driven belt and clamping rubber wheel then accurately and quickly eject the valve bag to the packaging machine's discharge port. To ensure continuous operation of the equipment, the bag inserter is equipped with a main storage table and a preparatory storage table: when the last valve bag on the main storage table is sucked away, the sensor is triggered, and the entire stack of valve bags on the preparatory storage table is immediately pushed to the main storage table, blocking the sensor at the same time; the negative pressure suction cup then descends and continues to suck up the valve bags for ejection, and this cycle repeats. However, the last valve bag on the current main storage table and the next stack of valve bags on the preparatory storage table are prone to interference when connecting their movements, resulting in the wrong direction of the valve bag, which in turn causes the bag inserter to fail to automatically pick up and alarm and stop. Manual sorting of the wrong valve bags is required to resolve the alarm and resume operation. Each alarm requires a 2 to 3 minute machine shutdown. When the valve bags are relatively dry, manual intervention is required an average of 10 times per hour, seriously affecting the normal production efficiency of the bag inserting machine and subsequent packaging equipment.

[0003] Therefore, how to ensure the production efficiency of the bag inserting machine has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a bag inserting machine to ensure the production efficiency of the bag inserting machine.

[0005] A bag inserting machine, comprising:

[0006] The main storage table is provided with a storage station for storing stacks of valve bags, and the main storage table is provided with adsorption holes, and the adsorption holes are arranged opposite to the storage station;

[0007] Preparation table for pre-storing stacks of valve bags;

[0008] A sensing device for detecting whether a valve bag is stored in the storage station;

[0009] A loading mechanism, used for transferring a stack of valve bags from the preliminary storage table to the main storage table when no valve bags are stored on the storage station;

[0010] The adsorption mechanism includes a positioning suction cup and a vacuum generator. The positioning suction cup is arranged at the adsorption hole and connected to the vacuum generator, and is used to adsorb the valve bag at the bottom layer of the valve bag stack at the storage station.

[0011] Optionally, in the above-mentioned bag inserting machine, the adsorption mechanism further includes a first cylinder, the first cylinder is arranged at the bottom of the main storage table and connected to the positioning suction cup, and the first cylinder is used to drive the positioning suction cup to move between the first position and the second position;

[0012] When the positioning suction cup is in the first position, the positioning suction cup is located in the adsorption hole and is used to adsorb the valve bag on the bottom layer of the valve bag stack at the storage station; when the positioning suction cup is in the second position, the positioning suction cup is located outside the adsorption hole.

[0013] Optionally, in the above-mentioned bag inserting machine, a filtering device is provided between the positioning suction cup and the vacuum generator.

[0014] Optionally, in the above-mentioned bag inserting machine, the storage station is connected to the table top of the preparatory storage table;

[0015] The feeding mechanism includes a conveyor belt arranged along a first direction, a first end of the conveyor belt is arranged on the preparatory storage table, and a second end of the conveyor belt extends to the storage station and is used to transport the valve bag stack.

[0016] Optionally, the above-mentioned bag inserting machine further includes a positioning plate, and the conveyor belt is used to transport the valve bag stack to the storage station abutting against the positioning plate.

[0017] Optionally, in the above-mentioned bag inserting machine, the sensing device includes a transmitter and a receiver, one of the transmitter and the receiver is arranged on the main storage table, and the other of the transmitter and the receiver is arranged on the positioning plate, and the receiver is used to receive the light signal emitted by the transmitter, and the transmission path of the light signal passes through the storage station to detect the valve bag at the storage station.

[0018] Optionally, the above-mentioned bag inserting machine further includes a bag tidying mechanism for aligning the valve bag stacks along the second direction.

[0019] Optionally, in the above-mentioned bag inserting machine, the bag-forming mechanism includes two guide baffles arranged on the main storage table, and a guide channel for the valve bag stack to pass through is formed between the two guide baffles. The guide channel extends along the first direction, and the first end of the guide channel is arranged opposite to the preparatory storage table, and the second end of the guide channel is arranged opposite to the storage station, and the opening width of the first end of the guide channel is greater than the opening width of the second end of the guide channel.

[0020] Optionally, in the above-mentioned bag inserting machine, the bag-forming mechanism includes two second cylinders and two push plates, the two push plates are respectively connected to the power output end of one of the second cylinders, and the two push plates are respectively arranged on both sides of the storage station along the second direction, and the second cylinder is used to drive the corresponding push plates to move toward the storage station to tidy up the valve bag stacks.

[0021] Optionally, the above-mentioned bag inserting machine further includes an ion wind bar or an electrostatic eliminator, and the ion wind bar and the electrostatic eliminator are arranged on at least one of the main storage table and the preliminary storage table.

[0022] Optionally, in the above-mentioned bag inserting machine, there are a plurality of adsorption holes, a plurality of positioning suction cups corresponding one-to-one to the adsorption holes, and each of the positioning suction cups is connected to the same vacuum generator.

[0023] Optionally, in the above-mentioned bag inserting machine, the valve bag at the storage station is used to be transferred to a subsequent station through a negative pressure suction cup, and the adsorption pressure of the negative pressure suction cup on the valve bag is greater than the adsorption pressure of the positioning suction cup on the valve bag.

[0024] The bag inserting machine provided by the present application includes a main storage table, a preparatory storage table, a sensing device, a feeding mechanism, and an adsorption mechanism. The main storage table is provided with a storage station for storing valve bag stacks, and an adsorption hole is opened on the main storage table, and the adsorption hole is arranged opposite to the storage station; the preparatory storage table is used to pre-store valve bag stacks; the sensing device is used to detect whether valve bags are stored at the storage station; the feeding mechanism is used to transfer the valve bag stack from the preparatory storage table to the main storage table when the sensing device detects that no valve bags are stored at the storage station; the adsorption mechanism includes a positioning suction cup and a vacuum generator, the positioning suction cup is provided at the adsorption hole and is connected to the vacuum generator, and is used to adsorb the valve bag at the bottom layer of the valve bag stack at the storage station. The valve bags at the storage station are adsorbed one by one from top to bottom by the negative pressure suction cup for subsequent bag opening, filling, and other processes. The present application utilizes a vacuum generator to generate negative pressure, and uses a positioning suction cup to adsorb the last valve bag at the bottom of the valve bag stack at the storage station onto the main storage table, thereby avoiding the process of other valve bags being adsorbed and transported by the negative pressure suction cup. In particular, during the process of the second-to-last valve bag in the valve bag stack being adsorbed and transported by the negative pressure suction cup, the last valve bag is lifted and moved a certain distance, causing its placement position and posture to shift, thereby effectively avoiding the sensor device from being triggered by mistake, and ensuring that after the last valve bag in the valve bag stack at the current storage station is adsorbed and transported by the negative pressure suction cup, a new stack of valve bags is loaded to the storage station by the loading mechanism.

[0025] Compared with related technologies, the bag insertion machine provided in this application can ensure the normal connection of different valve bag stacks at the storage station, reduce the number of times the sensor device is triggered incorrectly, reduce downtime, and ensure production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural schematic diagram of the positioning suction cup in the first position of the bag inserting machine disclosed in an embodiment of the present application;

[0028] Figure 2 This is a structural schematic diagram of the positioning suction cup in the bag inserting machine disclosed in an embodiment of the present application being in the second position;

[0029] Figure 3 This is a schematic diagram of the structure of the positioning suction cup adsorbing the valve bag in the bag inserting machine disclosed in an embodiment of the present application;

[0030] Figure 4 This is a schematic structural diagram of the adsorption component in the bag inserting machine disclosed in an embodiment of the present application;

[0031] Figure 5 Schematic diagram of the pushing structure of the valve bag by the feeding mechanism in the bag inserting machine disclosed in the embodiment of this application Figure 1 ;

[0032] Figure 6 Schematic diagram of the pushing structure of the valve bag by the feeding mechanism in the bag inserting machine disclosed in the embodiment of this application Figure 2 ;

[0033] Figure 7 Schematic diagram of the pushing structure of the valve bag by the feeding mechanism in the bag inserting machine disclosed in the embodiment of this application Figure 3 ;

[0034] Figure 8 Schematic diagram of the pushing structure of the valve bag by the feeding mechanism in the bag inserting machine disclosed in the embodiment of this application Figure 4 ;

[0035] Figure 9 This is a structural schematic diagram of the main storage table and the preparatory storage table in the bag inserting machine disclosed in an embodiment of the present application.

[0036] Among them, 100 is the main storage table, 101 is the storage station, 102 is the adsorption hole, 110 is the positioning plate, 120 is the guide baffle, 121 is the guide channel, 130 is the second cylinder, and 131 is the push plate;

[0037] 200 is a preparatory storage table, 210 is a conveyor belt;

[0038] 300 is a sensing device;

[0039] 400 is a negative pressure suction cup;

[0040] 500 is an adsorption mechanism, 510 is a positioning suction cup, 520 is a vacuum generator, 530 is a first cylinder, and 540 is a filtering device;

[0041] 600 is a valve bag. DETAILED DESCRIPTION

[0042] The core of this application is to disclose a bag inserting machine to ensure the production efficiency of the bag inserting machine.

[0043] The following embodiments are described with reference to the accompanying drawings. The embodiments shown below do not limit the inventions described in the claims. Furthermore, the entire contents of the configurations shown in the following embodiments are not limited to those necessary for the solutions to the inventions described in the claims. It should be noted that, for ease of description, only the portions relevant to the inventions are shown in the accompanying drawings. The embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict.

[0044] It should be noted that in the drawings of the embodiments of this application, the arrow marked X indicates the first direction X, the arrow marked Y indicates the second direction Y, and the arrow marked Z indicates the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. In actual applications, the three directions can be arranged at an angle between each other, and the angle can be less than or greater than 90 degrees. The first direction X, the second direction Y, and the third direction Z are introduced to more clearly illustrate the structure and relative positional relationship of the various components of the bag inserter. In actual applications, the first direction X, the second direction Y, and the third direction Z may vary depending on the placement of the bag inserter.

[0045] During the automatic bag feeding process of the bag inserter, the last valve bag on the main storage table interferes with the pushing action of the new stack of valve bags on the standby storage table, resulting in the wrong direction of the valve bag, suction failure, frequent alarms and shutdowns, and seriously affecting production efficiency. The applicant discovered that this is because the valve bags from different manufacturers and different batches have large differences in hardness, dryness and humidity, and the flatness of the entire stack of valve bags during the manufacturing process and packaging and transportation. As a result, when the bag inserter sequentially picks up the entire stack of valve bags to the second to last, it is easy to lift the last valve bag to a certain height, thereby causing the sensor to be falsely triggered and the new stack of valve bags to be pushed in advance. This will cause the current last valve bag and the new stack of valve bags to be stacked in a disordered manner, resulting in the wrong direction and position of the valve bag on the main storage table, suction failure, and affecting production efficiency. Based on this, the present application discloses the following bag inserter.

[0046] In this application, a valve bag stack refers to a structure formed by stacking multiple valve bags 600.

[0047] Combine Figures 1-9 The bag inserting machine disclosed in the embodiment of the present application includes a main storage table 100, a preparatory storage table 200, a sensor device 300, a feeding mechanism and an adsorption mechanism 500. The main storage table 100 is provided with a storage station 101 for storing valve bag stacks, and the main storage table 100 is provided with adsorption holes 102, which are arranged opposite to the storage station 101; the preparatory storage table 200 is used to pre-store valve bag stacks; the sensor device 300 is used to detect whether the storage station 101 is whether there are valve bags 600 stored; the loading mechanism is used to transfer the valve bag stack from the preliminary storage table 200 to the main storage table 100 when the sensor device 300 detects that there are no valve bags 600 stored at the storage station 101; the adsorption mechanism 500 includes a positioning suction cup 510 and a vacuum generator 520, the positioning suction cup 510 is arranged at the adsorption hole 102, and is connected to the vacuum generator 520, and is used to adsorb the valve bag 600 located at the bottom layer of the valve bag stack at the storage station 101.

[0048] Combine Figure 3The valve bags 600 at the storage station 101 are sucked one by one from top to bottom by the negative pressure suction cup 400 for subsequent bag opening, filling and other processes. The present application utilizes the vacuum generator 520 to generate negative pressure, and uses the positioning suction cup 510 to suck the last valve bag 600 at the bottom of the valve bag stack at the storage station 101 onto the main storage table 100, thereby preventing other valve bags 600 from being sucked and transported by the negative pressure suction cup 400, especially when the second-to-last valve bag 600 of the valve bag stack is sucked and transported by the negative pressure suction cup 400, the last valve bag 600 is lifted and moved a certain distance, causing its placement position and placement posture to shift, thereby effectively preventing the sensor device 300 from being triggered by mistake, and ensuring that after the last valve bag 600 of the valve bag stack at the current storage station 101 is sucked and transported by the negative pressure suction cup 400, a new stack of valve bags 600 is loaded to the storage station 101 by the loading mechanism.

[0049] It should be noted that the positioning suction cup 510 may be activated and suctioned to the last valve bag 600 only when the negative pressure suction cup 400 has sucked the penultimate valve bag 600 in the valve bag stack, and may stop sucking the valve bag 600 when the negative pressure suction cup 400 has sucked the last valve bag 600. Alternatively, the positioning suction cup 510 may always maintain suction on the last valve bag 600, and by adjusting the inlet pressure of the vacuum generator 520, the suction pressure of the negative pressure suction cup 400 on the valve bag 600 is greater than the suction pressure of the positioning suction cup 510 on the valve bag 600. This ensures that the last valve bag 600 is smoothly sucked by the negative pressure suction cup 400 while preventing the last valve bag 600 from moving due to the influence of other valve bags 600. For example, the suction pressure of the negative pressure suction cup 400 may be above -0.07 MPa, and the suction pressure of the positioning suction cup 510 may be -0.015 MPa.

[0050] Compared with the prior art, the bag inserting machine disclosed in the embodiment of the present application can ensure the normal connection of different valve bag stacks at the storage station 101, reduce the number of times the sensor device 300 is triggered by mistake, reduce downtime, and ensure production efficiency.

[0051] In order to reduce the wear of the positioning suction cup 510, in some embodiments disclosed in this application, Figure 1 and Figure 2The adsorption mechanism 500 also includes a first cylinder 530, which is arranged at the bottom of the main storage table 100 and is connected to the positioning suction cup 510, and the first cylinder 530 is used to drive the positioning suction cup 510 to move between the first position and the second position; when the positioning suction cup 510 is in the first position, the positioning suction cup 510 is located in the adsorption hole 102 and is used to adsorb the valve bag 600 at the bottom layer of the valve bag stack at the storage station 101; when the positioning suction cup 510 is in the second position, the positioning suction cup 510 is located outside the adsorption hole 102, so that the positioning suction cup 510 can be moved to a position avoiding the adsorption hole 102 when not in use by the drive of the first cylinder 530, so as to avoid affecting the subsequent loading of the valve bag stack to the storage station 101, and at the same time reduce the wear between the positioning suction cup 510 and the valve bag 600.

[0052] Combine Figure 4 In order to prevent the paper bag fibers of the valve bag 600 from clogging the vacuum generator 520, a filtering device 540 is provided between the positioning suction cup 510 and the vacuum generator 520. The filtering device 540 can be a filter screen, a filter, or the like.

[0053] The valve bag stack can be loaded onto the preparation storage table 200 by manual loading, belt loading, etc., and the present application embodiment does not limit this. In some embodiments disclosed in the present application, combined with Figure 5 The storage station 101 of the main storage table 100 is connected to the table top of the preparatory storage table 200; the loading mechanism includes a conveyor belt 210 arranged along a first direction, a first end of the conveyor belt 210 is set on the preparatory storage table 200, and a second end of the conveyor belt 210 extends to the storage station 101, and is used to move and transport the valve bag stack along the first direction X until the valve bag stack on the preparatory storage table 200 is transported to the storage station 101, thereby realizing automatic loading.

[0054] Further, combined with Figure 5 and Figure 6 The bag inserting machine further includes a positioning plate 110, and the conveyor belt 210 is used to push the valve bag stack to abut against the positioning plate 110, thereby ensuring that the stacked valve bags 600 are aligned in the first direction X.

[0055] In order to improve the uniformity of the posture of the valve bags 600 on the storage station 101, the bag inserting machine further includes a bag tidying mechanism for aligning the valve bag stacks along the second direction.

[0056] In some embodiments, combined Figure 6The bag-aligning mechanism includes two second cylinders 130 and two push plates 131. The two push plates 131 are respectively connected to the power output end of one second cylinder 130 and are respectively arranged on both sides of the storage station 101 along the second direction Y. When a new stack of valve bags is pushed to the storage station 101, the second cylinders 130 drive the corresponding push plates 131 to move toward the storage station 101 to align the valve bags 600 in the stack along the second direction. After alignment, the second cylinders 130 drive the push plates 131 to return to their original positions to avoid affecting the movement of subsequent valve bags 600.

[0057] In other embodiments, combined Figure 7 The bag-forming mechanism includes a guide baffle 120, a second cylinder 130 and a push plate 131. The push plate 131 is connected to the power output end of the second cylinder 130. The guide baffle 120 and the push plate 131 are respectively arranged on both sides of the storage station 101 along the second direction. The second cylinder 130 is used to drive the push plate 131 to move toward the guide baffle 120 to push the valve bag stack at the storage station 101 to abut against the guide baffle 120 and tidy them up.

[0058] The sensor device 300 is in communication with the feeding mechanism. Figure 8 The sensing device 300 can be a through-beam sensor and includes a transmitter and a receiver. The receiver is used to receive the light signal emitted by the transmitter, and the transmission path of the light signal passes through the storage station 101 to detect the valve bag 600 at the storage station 101. Specifically, when a valve bag 600 is placed at the storage station 101, the receiver is blocked and cannot receive the signal emitted by the transmitter, and the through-beam sensor is not triggered; when there is no valve bag 600 at the storage station 101, the receiver can receive the signal emitted by the transmitter, the through-beam sensor is triggered, and the loading mechanism automatically loads the material to the main storage station 100. In this application, "communication connection" refers to the data exchange path or connection relationship established between devices, enabling them to transmit information to each other. This connection can be achieved in a variety of ways, including physical connection through cables, wireless connection using radio waves, infrared rays, microwaves or other wireless technologies, and network connection based on network protocols. This is a prior art and will not be described in detail in this application.

[0059] Specifically, combined Figure 6 and Figure 7 One of the transmitter and the receiver can be set at a position corresponding to the storage station 101 on the main storage table 100, and the other of the transmitter and the receiver can be set on the positioning plate 110 or the guide baffle 120.

[0060] In order to ensure that the valve bag 600 can be reliably adsorbed and positioned, Figure 8There can be multiple adsorption holes 102, and there can be multiple positioning suction cups 510 corresponding to the adsorption holes 102 one by one, and each positioning suction cup 510 is connected to the same vacuum generator 520 to reduce costs.

[0061] To reduce adhesion between valve bags 600, ion blowers or ion rods may be installed on the main storage platform 100, the preliminary storage platform 200, and the path for pushing the valve bag stack. The ion blowers or ion rods release positive and negative ions to neutralize the static charge on the surface of the valve bags 600, thereby reducing the adsorption between adjacent valve bags 600 and facilitating the sequential transfer of the valve bags 600 by the negative pressure suction cup 400. In some embodiments, an anti-static brush is provided on the inner wall of the guide channel 121. When the valve bag stack passes through the middle of the guide channel 121, the anti-static brush contacts the surface of the valve bag stack and eliminates static electricity on each valve bag 600, reducing adsorption between adjacent valve bags 600 and ensuring the sequential transfer of the valve bags 600 by the negative pressure suction cup 400.

[0062] The other structures of the bag inserting machine are all prior art and will not be described in detail in this application.

[0063] The terms "first" and "second" and the like in the specification and claims of this application are used to distinguish different objects, rather than to describe a specific order, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not set to the listed steps or units, but may include steps or units that are not listed. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two.

[0064] The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the present application. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of this application. The specific technical means in some embodiments may be incorporated into another embodiment in part or in whole, unless expressly excluded by another embodiment. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bag inserting machine, characterized in that: include: A main storage table (100) is provided with a storage station (101) for storing valve bag stacks, and an adsorption hole (102) is opened on the main storage table (100), and the adsorption hole (102) is arranged opposite to the storage station (101); A preparation storage table (200) for pre-storing valve bag stacks; A sensing device (300) for detecting whether a valve bag (600) is stored on the storage station (101); A loading mechanism, used for transferring a stack of valve bags from the preliminary storage table (200) to the main storage table (100) when no valve bags (600) are stored on the storage station (101); The adsorption mechanism (500) comprises a positioning suction cup (510) and a vacuum generator (520), wherein the positioning suction cup (510) is arranged at the adsorption hole (102) and is connected to the vacuum generator (520) for adsorbing the bottom valve bag (600) in the valve bag stack at the storage station (101).

2. The bag inserting machine according to claim 1, characterized in that: The adsorption mechanism (500) further includes a first cylinder (530), the first cylinder (530) being arranged at the bottom of the main storage table (100) and connected to the positioning suction cup (510), and the first cylinder (530) being used to drive the positioning suction cup (510) to move between a first position and a second position; When the positioning suction cup (510) is in the first position, the positioning suction cup (510) is located in the adsorption hole (102) and is used to adsorb the valve bag (600) at the bottom layer of the valve bag stack at the storage station (101); when the positioning suction cup (510) is in the second position, the positioning suction cup (510) is located outside the adsorption hole (102).

3. The bag inserting machine according to claim 1, characterized in that A filtering device (540) is provided between the positioning suction cup (510) and the vacuum generator (520).

4. The bag inserting machine according to claim 1, characterized in that: The storage station (101) is connected to the tabletop of the preparatory storage table (200); The loading mechanism comprises a conveyor belt (210) arranged along a first direction, a first end of the conveyor belt (210) being disposed on the preparatory storage platform (200), and a second end of the conveyor belt (210) extending to the storage station (101) and being used for conveying stacks of valve bags.

5. The bag inserting machine according to claim 4, characterized in that: It also includes a positioning plate (110), and the conveyor belt (210) is used to transport the valve bag stack to the storage station (101) abutting against the positioning plate (110).

6. The bag inserting machine according to claim 5, characterized in that: The invention also includes a bag-straightening mechanism for aligning the valve bag stack along the second direction, the bag-straightening mechanism including a guide baffle (120), a second cylinder (130) and a push plate (131), the push plate (131) being connected to the power output end of the second cylinder (130), the guide baffle (120) and the push plate (131) being respectively arranged on both sides of the storage station (101) along the second direction, the second cylinder (130) being used to drive the push plate (131) to move toward the guide baffle (120) to push the valve bag stack into contact with the guide baffle (120) and align the bag stack.

7. The bag inserting machine according to claim 6, characterized in that: The sensing device (300) includes a transmitter and a receiver, wherein the receiver is used to receive a light signal emitted by the transmitter, and a transmission path of the light signal passes through the storage station (101) to detect the valve bag (600) at the storage station (101).

8. The bag inserting machine according to claim 7, characterized in that: One of the transmitter and the receiver is arranged on the main storage platform (100) at a position corresponding to the storage station (101), and the other of the transmitter and the receiver is arranged on the positioning plate (110) or the guide baffle (120).

9. The bag inserting machine according to claim 1, wherein: It also includes an ion wind bar or an electrostatic eliminator, wherein the ion wind bar and the electrostatic eliminator are arranged on at least one of the main storage platform (100) and the preliminary storage platform (200).

10. The bag inserting machine according to claim 1, wherein: The valve bag (600) at the storage station (101) is used to be transferred to a subsequent station via a negative pressure suction cup (400), and the adsorption pressure of the negative pressure suction cup (400) on the valve bag (600) is greater than the adsorption pressure of the positioning suction cup (510) on the valve bag (600).

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