Bag blocking device and automatic loading machine

Abstract

A bag-linking blocking device and an automatic loader relate to the technical field of material conveying devices, and include a blocking release mechanism and a trigger mechanism. When the blocking release mechanism is in a first state, the material bag can pass through the blocking release mechanism, and when the first material bag passes through the blocking release mechanism, the blocking release mechanism can be converted to a second state. The blocking release mechanism in the second state can block subsequent material bags, thereby changing the distance between the front and rear material bags to avoid the occurrence of linked bags.

Description

Technical Field

[0001] The invention relates to the technical field of automatic loading, and in particular to a bag-connecting barrier device and an automatic loading machine. Background Art

[0002] Chinese patent CN201620748730.4 discloses a mobile multi-directional loader, which includes a feeding conveyor belt, a conveying device is arranged parallel to the side and lower part of the feeding conveyor belt, and a guide bevel is arranged above the feeding conveyor belt, and the guide bevel guides the material bag to the direction of the conveying device; an inclined plate is arranged between the feeding conveyor belt and the conveying device, and a stopper is arranged on the upper inclined surface of the inclined plate; the inclined plate is fixedly connected to the bracket of the conveying device, and the guide bevel is fixedly connected to the bracket of the conveying device.

[0003] In this patent, when the material bag is conveyed from the feeding conveyor belt to the conveying device, the material bag moves toward the conveying device under the guidance of the guide slash bar and slides downward along the inclined plate. During the downward sliding process, the lower side of the material bag contacts the block, and the upper side thereof flips downward, and the material bag falls flat on the conveying device, effectively preventing the feed from being concentrated at one end of the material bag, maintaining the flatness of the material bag to the maximum extent, and facilitating the stacking of the material bag.

[0004] Chinese patent application CN201710441622.1 discloses a material bag loading and stacking device and a stacking method, and a storage medium, which relates to the technical field of material bag loading and stacking equipment, and is used for a mobile multi-directional loading machine, the mobile multi-directional loading machine includes a conveyor belt that can move forward and backward, and swing up and down and left and right. The material bag loading and stacking device includes: a stacking mechanism, which is arranged on one side of the lifting end of the conveyor belt, and is used to receive the material bags transmitted from the conveyor belt, and the bottom plate of the stacking mechanism can be opened / closed; a rotating mechanism, which is connected to the stacking mechanism, and is used to drive the stacking mechanism to rotate freely between the material receiving position and the material discharging position in the horizontal direction; and a supporting mechanism, which is connected to the transfer mechanism, and is used to suspend the stacking mechanism and the transfer mechanism. By rotating the stacking mechanism horizontally at the material receiving position and the material discharging position, the material bag can be rotated to be parallel or perpendicular to the length direction of the carriage of the transport vehicle and then unloaded, so that the material bag can be automatically loaded and stacked, reducing the labor intensity of the workers and improving the work efficiency. However, the technical solution of the patent application has the following technical problems: the material bags need to be transported to the stacking mechanism one by one. Once two or more material bags are too close to each other, only the material bags at the front can be transported to the stacking mechanism, while the material bags at the back cannot enter the stacking mechanism, which is prone to malfunctions and affects the normal operation of the entire production line. How to ensure that the material bags have a certain spacing distance on the conveyor belt becomes the key to solving the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a bag-connecting blocking device and an automatic loader, so as to solve the bag-connecting problem existing in the prior art during the operation of the automatic loader, so that there is a certain spacing distance between two adjacent material bags when the material bags are transmitted on the conveyor belt.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: a bag-connecting blocking device, which can be fixed on the upper side of the conveyor belt, and includes a blocking release mechanism and a trigger mechanism, wherein the blocking release mechanism includes a support frame, a blocking release frame, a locking member, a first elastic member and a second elastic member, one end of the blocking release frame is bent downward at a first angle and extends a section to form a blocking portion, and the other end is bent downward at a second angle and extends one end to form a sliding support portion; a portion of the blocking release frame located between the blocking portion and the sliding support portion is pivotally connected to the support frame; one end of the locking member is pivotally connected to the support frame, and the other end has a locking groove that can be engaged with the locking portion on the blocking release frame; one end of the first elastic member is connected to the support frame, and the other end is connected to the blocking release frame, and the first elastic member is used to provide a blocking portion. A first elastic force is used to lift the blocking part; one end of the second elastic member is connected to the support frame and the other end is connected to the locking member, and the second elastic member is used to provide a second elastic force that causes the locking groove of the locking member to approach the locking part; the trigger mechanism and the blocking release mechanism are arranged at intervals along the extension direction of the conveyor belt, and the trigger mechanism and the locking member are connected by a pull rope, and the trigger mechanism is used to pull the locking groove and the locking part apart by the pull rope to release the blocking release frame; the blocking release mechanism has a first state and a second state, and when the blocking release mechanism is in the first state, the blocking part of the blocking release frame is away from the conveyor belt; when the material bag moves with the conveyor belt, it pushes the sliding support part to lift, and the blocking part rotates in the direction close to the conveyor belt, and the locking groove and the locking part are engaged to form a second state.

[0007] Preferably, the trigger mechanism comprises a support shaft and a trigger member, the support shaft is fixedly arranged, the upper end of the trigger member is pivotally connected to the support shaft, and the pull rope is connected to the middle part of the trigger member.

[0008] Preferably, the first angle is greater than the second angle.

[0009] Preferably, the support frame includes a first support frame and a second support frame.

[0010] Wherein, the first support frame and the second support frame can be fixedly mounted above the conveyor belt of the conveyor; the blocking release frame is located between the first support frame and the second support frame and the conveyor belt, and the blocking release frame is rotatably connected to the first support frame;

[0011] The locking member is rotatably connected to the second support frame; one end of the second elastic member is connected to the locking member, and the other end of the second elastic member is connected to the second support frame.

[0012] Preferably, the barrier release frame comprises a first support arm, a second support arm, a crossbeam and a locking portion;

[0013] Wherein, the first support arm and the second support arm are symmetrically arranged on both sides of the conveyor belt; the crossbeam and the locking portion are both arranged between the first support arm and the second support arm, and the crossbeam and the locking portion are arranged in parallel and spaced apart along the length direction of the first support arm;

[0014] The first support arm and the second support arm are both rotatably connected to the first support frame; the locking member is located between the crossbeam and the locking portion.

[0015] Preferably, the first support frame comprises a fixed shaft and a first support rod connected to each other;

[0016] Wherein, the fixed shaft is a U-shaped structure, and the U-shaped structure can span above the conveyor belt and can be fixed on the frames on both sides of the conveyor belt;

[0017] The first support rod is located above the fixed shaft; and the first elastic member is connected to the first support rod.

[0018] Preferably, the second support frame is also a U-shaped structure, which can span over the conveyor belt and can be fixed on the frames on both sides of the conveyor belt.

[0019] Preferably, a second support rod is provided on the side of the second support frame away from the locking member, and the opening of the second support rod faces the locking member; one end of the second elastic member is connected to the locking member, and the other end of the second elastic member is connected to the second support rod.

[0020] Preferably, the locking member is a hook-shaped structure; one end of the hook-shaped structure is rotatably connected to the second support frame, and the opening side of the hook-shaped structure is arranged away from the conveyor belt.

[0021] Another aspect of the present invention further provides an automatic loading machine, which includes the bag-connecting barrier device described in any of the above technical solutions.

[0022] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0023] The bag-linking blocking device of the present invention can be fixed on the upper side of the conveyor belt, and includes a blocking release mechanism and a trigger mechanism. The blocking release mechanism includes a support frame, a blocking release frame, a locking member, a first elastic member and a second elastic member. One end of the blocking release frame is bent downward at a first angle and extends a section to form a blocking portion, and the other end is bent downward at a second angle and extends one end to form a sliding support portion; the blocking portion is located in the direction of incoming materials; a portion of the blocking release frame located between the blocking portion and the sliding support portion is pivotally connected to the support frame; one end of the locking member is pivotally connected to the support frame, and the other end has a locking groove that can be engaged with a locking portion on the blocking release frame; one end of the first elastic member is connected to the support frame, and the other end is connected to the blocking release frame, and the first elastic member is used to provide a first elastic force to lift the blocking portion. ; One end of the second elastic member is connected to the support frame, and the other end is connected to the locking member, and the second elastic member is used to provide a second elastic force that makes the locking groove of the locking member approach the locking part; the trigger mechanism and the blocking release mechanism are arranged at intervals along the extension direction of the conveyor belt, and the trigger mechanism and the locking member are connected by a pull rope, and the trigger mechanism is used to pull the locking groove and the locking part apart by the pull rope to release the blocking release frame; the blocking release mechanism has a first state and a second state, and when the blocking release mechanism is in the first state, the blocking part of the blocking release frame is away from the conveyor belt; when the material bag moves with the conveyor belt, it pushes the sliding support part to lift up, and the blocking part rotates in the direction close to the conveyor belt, and the locking groove and the locking part are engaged to form the second state.

[0024] Wherein, when the blocking release mechanism is in the first state, the blocking part of the blocking release frame is away from the conveyor belt, and the first material bag can pass through the gap between the blocking part and the conveyor belt; after the first material bag continues to move with the conveyor belt until it contacts the sliding support part, the first material bag pushes the sliding support part to move upward, and at the same time, the blocking part rotates toward the direction close to the conveyor belt, and the locking part is pulled by the second elastic part to close the locking part until the locking groove and the locking part are completely engaged. When the first material bag passes the lower side position of the blocking release frame, the sliding support part loses the supporting function of the first material bag, and under the action of the first elastic part, the blocking part of the blocking release frame has a tendency to lift upward, but the locking part has been engaged with the locking groove, and under the action of the locking part, the blocking release frame forms a second state and remains in the second state. At this time, the second material bag is blocked by the blocking part and cannot move forward with the conveyor belt.

[0025] When the first material bag moves forward to the trigger mechanism along with the conveyor belt, the first material bag pushes the trigger member to rotate, the trigger member pulls the drawstring, the drawstring pulls the locking member to rotate, and the locking groove at the end of the locking member is separated from the locking part on the blocking release frame. Under the pulling force of the first elastic member, the blocking part is lifted, and the blocking release mechanism returns to the first state, so that the second material bag can move forward along with the conveyor belt and push the blocking release mechanism to change to the second state.

[0026] It can be seen that the bag-connecting barrier device of the present application can keep the two bags at a certain distance, avoid them from gathering together in the later stage, and ensure normal production.

[0027] The automatic loading machine provided by the present invention comprises the above-mentioned bag-connecting blocking device, and can safely and reliably convey material bags. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of a bag-connected barrier device according to one or more embodiments provided by the present invention;

[0029] Figure 2 A schematic structural diagram of a bag-linked barrier device according to one or more embodiments of the present invention, wherein the barrier release mechanism is in a first state;

[0030] Figure 3 A schematic structural diagram of a bag-linked barrier device according to one or more embodiments of the present invention, wherein the barrier release mechanism is in a second state;

[0031] Figure 4 A schematic diagram of the principle of switching the bag-linking barrier device according to one or more embodiments of the present invention from the second state back to the first state;

[0032] Figure 5 A schematic structural diagram of a barrier release mechanism in a bag-linked barrier device according to one or more embodiments of the present invention.

[0033] Description of reference numerals:

[0034] 1-first support frame, 101-fixed axis, 102-first support rod, 2-second support frame, 201-second support rod, 3-blocking release frame, 301-first support arm, 302-second support arm, 303-crossbeam, 304-locking part, 305-sliding support part, 306-blocking part, 4-locking member, 41-locking groove, 5-first elastic member, 6-second elastic member, 7-pull rope, 8-conveyor belt, 9-trigger mechanism, 901-support shaft, 902-trigger member, 10-first material bag, 11-second material bag. DETAILED DESCRIPTION

[0035] Other objects and advantages of the present invention will become apparent through explanation of the following preferred embodiments of the present application.

[0036] Refer to the following Figure 1 and Figure 2 The invention describes a bag-connecting barrier device and an automatic loading machine according to some embodiments of the invention.

[0037] refer to Figures 1 to 5, a bag-linking blocking device, comprising a blocking release mechanism and a trigger mechanism 9. The blocking release mechanism has a first state and a second state. When the blocking release mechanism is in the first state, the first material bag 10 can pass through the blocking release mechanism. And, when the first material bag 10 passes through the blocking release mechanism, the blocking release mechanism can be converted to a second state. The blocking release mechanism in the second state can block the second material bag 11, thereby changing the distance between the second material bag 11 and the first material bag 10, and avoiding the second material bag 11 and the first material bag 10 from being close to each other. The first material bag 10 passing through the blocking release mechanism can switch the blocking release mechanism from the second state back to the first state through the trigger mechanism 9. The second material bag 11 can pass through the blocking release mechanism and continue to switch the blocking release mechanism from the first state back to the second state. Therefore, the joint blocking release device can not only avoid the occurrence of the bag-linking phenomenon, but also make the distance between the material bags greater than or equal to the set distance, and the set distance is the distance between the trigger mechanism 9 and the blocking release mechanism.

[0038] In some embodiments, reference Figure 1 The bag-connecting blocking device can be fixed on the upper side of the conveyor belt 8. The blocking release mechanism includes a support frame, a blocking release frame 3, a locking member 4, a first elastic member 5 and a second elastic member 6.

[0039] refer to Figure 2 and Figure 5 , one end of the blocking release frame 3 is bent downward at a first angle and extended to form a blocking portion 306, and the other end is bent downward at a second angle and extended to form a sliding support portion 305. Preferably, the first angle is greater than the second angle. The blocking portion 306 is located in the direction of the incoming material. The portion of the blocking release frame 3 located between the blocking portion 306 and the sliding support portion 305 is pivotally connected to the support frame. When the blocking portion 306 is raised, the material bag is allowed to pass through the space between it and the conveyor belt 8; when the blocking portion 306 is rotated to a low position, it can prevent the material bag from moving with the conveyor belt 8.

[0040] refer to Figure 2 and Figure 5 One end of the locking member 4 is pivotally connected to the support frame, and the other end has a locking groove 41 that can be engaged with the locking portion 304 on the blocking release frame 3. One end of the first elastic member 5 is connected to the support frame, and the other end is connected to the blocking release frame 3. The first elastic member 5 is used to provide a first elastic force to lift the blocking portion 306. One end of the second elastic member 6 is connected to the support frame, and the other end is connected to the locking member 4. The second elastic member 6 is used to provide a second elastic force to make the locking groove 41 of the locking member 4 approach the locking portion 304. When the blocking portion 306 of the blocking release frame 3 rotates to the low position, the second elastic member 6 can pull the locking groove 41 to engage with the locking portion 304, so that the blocking release frame 3 remains in the second state.

[0041] refer to Figure 2 The trigger mechanism 9 and the blocking release mechanism are arranged at intervals along the extending direction of the conveyor belt 8, and the trigger mechanism 9 is connected to the locking member 4 through the pull rope 7. The trigger mechanism 9 is used to pull the locking groove 41 and the locking part 304 apart through the pull rope 7 to release the blocking release frame 3. The blocking release mechanism has a first state and a second state. When the blocking release mechanism is in the first state, the blocking part 306 of the blocking release frame 3 is away from the conveyor belt 8; when the material bag moves with the conveyor belt 8, the sliding support part 305 is pushed up, and the blocking part 306 rotates in the direction close to the conveyor belt 8, and the locking groove 41 is engaged with the locking part 304 to form the second state.

[0042] When the blocking release mechanism is in the first state, the blocking portion 306 of the blocking release frame 3 is away from the conveyor belt 8, and the first material bag 10 can pass through the gap between the blocking portion 306 and the conveyor belt 8; after the first material bag 10 continues to move with the conveyor belt 8 until it contacts the sliding support portion 305, the first material bag 10 pushes the sliding support portion 305 to move upward, and at the same time, the blocking portion 306 rotates toward the direction close to the conveyor belt 8, and the locking member 4 is pulled by the second elastic member 6 to close to the locking portion 304 until the locking groove 41 and the locking portion 304 are completely engaged. When the first material bag 10 passes the lower side position of the blocking release frame 3, the sliding support portion 305 loses the support function of the first material bag 10, and under the action of the first elastic member 5, the blocking portion 306 of the blocking release frame 3 has a tendency to lift upward, but the locking portion 304 has been engaged with the locking groove 41, and the blocking release frame 3 forms the second state under the action of the locking member 4 and remains in the second state. At this time, the second material bag 11 is blocked by the blocking portion 306 and cannot move forward along with the conveyor belt 8 .

[0043] When the first material bag 10 moves forward to the trigger mechanism 9 along with the conveyor belt 8, the first material bag 10 pushes the trigger member 902 to rotate, the trigger member 902 pulls the drawstring 7, and the drawstring 7 pulls the locking member 4 to rotate. The locking groove 41 at the end of the locking member 4 is separated from the locking portion 304 on the blocking release frame 3. Under the pulling force of the first elastic member 5, the blocking portion 306 is lifted, and the blocking release mechanism returns to the first state, so that the second material bag can move forward along with the conveyor belt 8 and push the blocking release mechanism to the second state.

[0044] In some embodiments, reference Figure 2The trigger mechanism 9 includes a support shaft 901 and a trigger member 902. The support shaft 901 is fixedly arranged, for example, the support shaft 901 can be fixed to the frame of the conveyor belt 8. The upper end of the trigger member 902 is pivotally connected to the support shaft 901, and the pull rope 7 is connected to the middle part of the trigger member 902. When the material bag moves with the conveyor belt 8, it can push the trigger member 902 to rotate, and the rotation of the trigger member 902 pulls the pull rope 7.

[0045] In some embodiments, reference Figure 2 and Figure 5 The support frame includes a first support frame 1 and a second support frame 2, wherein the first support frame 1 and the second support frame 2 can be fixed above the conveyor belt 8 of the conveyor; the blocking release frame 3 is located between the first support frame 1 and the second support frame 2 and the conveyor belt 8, and the blocking release frame 3 is rotatably connected to the first support frame 1; the locking member 4 is rotatably connected to the second support frame 2; one end of the second elastic member 6 is connected to the locking member 4, and the other end of the second elastic member 6 is connected to the second support frame 2.

[0046] In some embodiments, reference Figure 2 and Figure 5 The blocking release frame 3 includes a first support arm 301, a second support arm 302, a crossbeam 303 and a locking portion 304; wherein the first support arm 301 and the second support arm 302 are symmetrically arranged on both sides of the conveyor belt 8; the crossbeam 303 and the locking portion 304 are both arranged between the first support arm 301 and the second support arm 302, and the crossbeam 303 and the locking portion 304 are arranged in parallel and spaced apart along the length direction of the first support arm 301; the first support arm 301 and the second support arm 302 are both rotatably connected to the first support frame 1; the locking member 4 is located between the crossbeam 303 and the locking portion 304.

[0047] In some embodiments, reference Figure 2 and Figure 5 , the first support frame 1 includes a fixed shaft 101 and a first support rod 102 connected to each other;

[0048] The fixed shaft 101 is a U-shaped structure, and the U-shaped structure can span over the conveyor belt 8 and can be fixed on the frames on both sides of the conveyor belt 8;

[0049] The first support rod 102 is located above the fixed shaft 101 ; the first elastic member 5 is connected to the first support rod 102 .

[0050] In some embodiments, reference Figure 2 and Figure 5 The second support frame 2 is also a U-shaped structure, which can span above the conveyor belt 8 and can be fixed on the frames on both sides of the conveyor belt 8.

[0051] In some embodiments, reference Figure 2 and Figure 5 A second support rod 201 is provided on the side of the second support frame 2 away from the locking member 4, and the opening of the second support rod 201 faces the locking member 4; one end of the second elastic member 6 is connected to the locking member 4, and the other end of the second elastic member 6 is connected to the second support rod 201.

[0052] In some embodiments, reference Figure 2 and Figure 5 The locking member 4 is a hook-shaped structure; one end of the hook-shaped structure is rotatably connected to the second support frame 2, and the opening side of the hook-shaped structure is arranged away from the conveyor belt 8.

[0053] The embodiment of the present invention further provides an automatic loading machine, comprising the bag-connecting blocking device described in any of the above embodiments, wherein the bag-connecting blocking device is installed on a conveyor belt of the automatic loading machine. The automatic loading machine has all the beneficial technical effects of the bag-connecting blocking device, which will not be described in detail herein.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bag-connected barrier device, characterized in that: The bag-linking blocking device can be fixed on the upper side of the conveyor belt, and comprises a blocking release mechanism and a trigger mechanism (9), wherein the blocking release mechanism comprises a support frame, a blocking release frame (3), a locking member (4), a first elastic member (5) and a second elastic member (6), wherein one end of the blocking release frame (3) is bent downward at a first angle and extends for a section to form a blocking portion (306), and the other end is bent downward at a second angle and extends at one end to form a sliding support portion (305); a portion of the blocking release frame (3) located between the blocking portion (306) and the sliding support portion (305) is pivotally connected to the support frame; the locking member (4) 4) has one end pivotally connected to the support frame, and the other end has a locking groove (41) capable of engaging with the locking portion (304) on the blocking release frame (3); one end of the first elastic member (5) is connected to the support frame, and the other end is connected to the blocking release frame (3), and the first elastic member (5) is used to provide a first elastic force to lift the blocking portion (306); one end of the second elastic member (6) is connected to the support frame, and the other end is connected to the locking member (4), and the second elastic member (6) is used to provide a second elastic force to make the locking groove (41) of the locking member (4) approach the locking portion (304); The trigger mechanism (9) and the blocking release mechanism are arranged at intervals along the extension direction of the conveyor belt (8), and the trigger mechanism (9) is connected to the locking member (4) via a pull rope (7), and the trigger mechanism (9) is used to pull the locking groove (41) and the locking portion (304) apart via the pull rope (7) to release the blocking release frame (3); The blocking release mechanism has a first state and a second state. When the blocking release mechanism is in the first state, the blocking portion (306) of the blocking release frame (3) is away from the conveyor belt (8); when the material bag moves along with the conveyor belt (8), the sliding support portion (305) is pushed up, and the blocking portion (306) rotates in a direction close to the conveyor belt (8), and the locking groove (41) is engaged with the locking portion (304) to form a second state; The trigger mechanism (9) comprises a support shaft (901) and a trigger member (902), the support shaft (901) being fixedly arranged, the upper end of the trigger member (902) being pivotally connected to the support shaft (901), and the pull rope (7) being connected to the middle part of the trigger member (902); The support frame comprises a first support frame (1) and a second support frame (2), Wherein, the first support frame (1) and the second support frame (2) can be fixedly mounted above a conveyor belt (8) of a conveyor; the blocking release frame (3) is located between the first support frame (1) and the second support frame (2) and the conveyor belt (8), and the blocking release frame (3) is rotatably connected to the first support frame (1); The locking member (4) is rotatably connected to the second support frame (2); one end of the second elastic member (6) is connected to the locking member (4), and the other end of the second elastic member (6) is connected to the second support frame (2); The barrier release frame (3) comprises a first support arm (301), a second support arm (302), a crossbeam (303) and a locking portion (304); The first support arm (301) and the second support arm (302) are symmetrically arranged on both sides of the conveyor belt (8); the crossbeam (303) and the locking portion (304) are both arranged between the first support arm (301) and the second support arm (302), and the crossbeam (303) and the locking portion (304) are arranged in parallel and spaced apart along the length direction of the first support arm (301); The first support arm (301) and the second support arm (302) are both rotatably connected to the first support frame (1); the locking member (4) is located between the crossbeam (303) and the locking portion (304); The first support frame (1) comprises a fixed shaft (101) and a first support rod (102) connected to each other; Wherein, the fixed shaft (101) is a U-shaped structure, and the U-shaped structure can span above the conveyor belt (8) and can be fixed on the frames on both sides of the conveyor belt (8); The first support rod (102) is located above the fixed shaft (101); the first elastic member (5) is connected to the first support rod (102); The second support frame (2) is also a U-shaped structure, capable of spanning above the conveyor belt (8), and capable of being fixed on frames on both sides of the conveyor belt (8); A second support rod (201) is provided on a side of the second support frame (2) away from the locking member (4), and an opening of the second support rod (201) faces the locking member (4); one end of the second elastic member (6) is connected to the locking member (4), and the other end of the second elastic member (6) is connected to the second support rod (201).

2. The bag-linked barrier device according to claim 1, characterized in that: The first angle is greater than the second angle.

3. The bag-linked barrier device according to claim 1, characterized in that: The locking member (4) is a hook-shaped structure; one end of the hook-shaped structure is rotatably connected to the second support frame (2), and the opening side of the hook-shaped structure is arranged away from the conveyor belt (8).

4. An automatic loading machine, characterized in that: The invention comprises the bag-connected barrier device according to any one of claims 1 to 3.

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