CN113879818B

CN113879818B - Soft bag feeding device and control method thereof

Info

Publication number: CN113879818B
Application number: CN202111213716.6A
Authority: CN
Inventors: 李明飞; 王素榕; 万维根; 梁祺; 李林霜; 张洋; 唐洪; 李聪
Original assignee: Chengdu Hongrui Technology Co ltd
Current assignee: Chengdu Hongrui Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2023-02-28
Anticipated expiration: 2041-10-18
Also published as: CN113879818A

Abstract

The embodiment of the invention provides a soft bag feeding device and a control method thereof, wherein the soft bag feeding device comprises a conveying plate, a first rotating shaft and a second rotating shaft, wherein the conveying plate can rotate between a first angle and a second angle around a rotating axis; the driving device is used for driving the conveying plate to rotate between the first angle and the second angle; a trigger device for sensing the flexible bag; when the triggering device senses the soft bag, the driving device drives the conveying plate to rotate from the first angle to a second angle; and when the conveying plate reaches the second angle, the driving device drives the conveying plate to rotate from the second angle to the first angle so as to feed the next soft bag. It is simple in construction, can use and make economically; simultaneously, it is accurate that it has the material loading, hangs the bag success rate height, satisfies the use occasion of high strength material loading.

Description

Soft bag feeding device and control method thereof

Technical Field

The invention relates to the field of soft bag feeding, in particular to a soft bag feeding device and a control method thereof.

Background

At present, in the aspect of detecting liquid canned foreign matters, pharmaceutical factories, beverage product factories and the like in China mainly detect the foreign matters by using a light detector, although the technology of detecting the liquid canned foreign matters from rotation to subsequent photographing of the light detector is relatively mature at present, certain technical difficulties exist in the technology of conveying a hard-head soft-body bag body at present, and by combining a graph 1, the head part of a common hard-head soft-body container 1 'is a hard plastic part and is easy to clamp, but the container 2' is made of soft plastic, is easy to deform when in contact and is difficult to accurately position; although the head of the hard-head soft-body container 1' is a hard plastic piece, the hard-head soft-body container cannot be conveyed through a screw conveying device and a belt conveying device, otherwise the container per se is deformed due to mutual extrusion between two adjacent containers, and subsequent operation is influenced.

In the prior art, the soft bag is generally loaded by adopting a sucker and a rotating mechanism, rotating and loading or adopting a delta robot. For example, patent No. 202110555774.0 discloses a feeding and discharging mode, the feeding mechanism comprises a fixed frame, a swing frame, a rotary driving mechanism, a gripper and a gripper cylinder; one end of the swinging frame is rotatably connected with the fixed frame, and the other end of the swinging frame is connected with the hand grip; the rotary driving mechanism is arranged on one side of the fixed frame and drives the swinging frame to rotate; the hand grip is movably arranged on the swing frame and is provided with a plurality of suckers for adsorbing soft bags; the gripper cylinder is installed on the swing frame and is connected with the gripper in a driving mode. In the feeding method, the soft plastic part of the soft bag is sucked by the sucking disc, and the soft bag deforms after liquid is filled in the soft bag, and the deformation capacity of different soft bags is different due to the difference of manufacturing processes when the soft bags are grabbed, so that the problem of hanging failure can be caused during feeding. The delta robot is used for feeding, the delta robot is used for grabbing the head of the soft bag and conveying the head to the preset clamp to realize the feeding process, but the delta robot is high in price, so that the manufacturing and using costs of the feeding mechanism are greatly increased. Patent No. 201710418969.4 discloses a turnover feeding mode, a bag receiving disc is driven by a servo motor, and after a soft infusion bag is received, the bag receiving disc is turned upwards by 90 degrees to transfer the soft infusion bag to a circular conveying synchronous belt. Although the structure of the feeding mode is simple, the soft bag needs to be aligned to prevent the soft bag from being hung when the material is hung in a turning way, and if the bottom of the soft bag is not aligned with the bottom of the bag receiving tray, the soft bag can be thrown out from the side surface of the bag receiving tray.

Disclosure of Invention

The invention aims to solve the problems and provides a soft bag feeding device and a control method thereof. It is simple in construction, can use and make economically; simultaneously, it has the material loading accurate, hangs the bag success rate height, satisfies the use occasion of high strength material loading.

A first aspect of an embodiment of the present invention provides a soft bag loading device, including a conveying plate, where the conveying plate is rotatable around a rotation axis between a first angle and a second angle, where the first angle is an angle at which a soft bag slides along the conveying plate perpendicular to the rotation axis to a designated bag receiving device; the second angle is an angle at which the soft bag is completely separated from the conveying plate;

the driving device is used for driving the conveying plate to rotate between the first angle and the second angle;

a trigger device for sensing the flexible bag;

when the triggering device senses the soft bag, the driving device drives the conveying plate to rotate from the first angle to a second angle; and when the conveying plate reaches the second angle, the driving device drives the conveying plate to rotate from the second angle to the first angle so as to feed the next soft bag.

According to the soft bag feeding device provided by the embodiment of the invention, when the soft bag is at the first angle, the soft bag slides on the conveying plate to the appointed bag receiving device, and simultaneously the conveying plate is controlled to move to the second angle by controlling the angle of the conveying plate, so that the soft bag is conveniently separated from the conveying plate, the feeding of a bag body is completed, the bag body is repeatedly fed by reciprocating the conveying plate at the first angle and the second angle, in addition, the soft bag feeding device is also provided with a trigger device, the trigger device is used for sensing the bag body and controlling the driving mechanism to drive the conveying plate to move, and the soft bag feeding device is simple in structure and can be economically used and manufactured; simultaneously, it has the material loading accurate, hangs the bag success rate height, satisfies the use occasion of high strength material loading.

In a possible implementation manner, the bag receiving device comprises an interface which is arranged upwards and a slide way communicated with the interface, and the size of the interface is larger than the diameter of the head part of the soft bag; the width of the slide way is larger than the diameter of the neck of the soft bag and smaller than the diameter of the head of the soft bag.

In a possible realization, the slide ends are provided with elastic stop means.

In one possible implementation, the resilient stop member includes a radiused end portion, a fixed mounting portion, and an arcuate portion disposed between the radiused end portion and the fixed mounting portion.

In one possible implementation, the slide is detachably mounted on a fixing frame, and a graduated scale is arranged on the fixing frame.

In a possible realization, the rotation axis of the conveyor plate is arranged at the head end of the conveyor plate.

In one possible implementation, the triggering device is a sensor assembly disposed at the end of the conveyor plate.

In one possible implementation manner, the sensor assembly comprises a first lever rotatably arranged on a first fixed rod and a proximity switch fixedly arranged on the first fixed rod and far away from the first fixed rod; the sensing end of the first lever senses the soft bag, and the adapting end of the first lever is adapted to the proximity switch.

In a possible implementation manner, a graduated scale is arranged on the first fixing rod.

In a possible implementation manner, the driving device comprises a driving source and a transmission device, after the conveying plate reaches the second angle, the driving source drives the transmission device to rotate the conveying plate from the second angle to the first angle so as to load the next soft bag; or the driving source directly drives the conveying plate to rotate from the second angle to the first angle so as to feed the next soft bag.

In one possible implementation, the driving device includes a first link and a second lever; one end of the first connecting rod is rotatably connected with the trigger device; the other end of the first connecting rod is rotatably connected with one end of the second lever; the other end of the second lever is connected with the conveying plate; the fulcrum of the second lever is connected in a rotationally immovable manner with respect to the space.

In a possible implementation, the feeding device is further provided with a counter for adapting to the triggering device or the driving device.

In a possible implementation manner, the conveying plate is provided with a plurality of conveying plates, and guide plates are arranged on two sides of each conveying plate.

In a possible implementation manner, the guide plate is detachably arranged on the guide plate mounting frame, and the graduated scale is arranged on the guide plate mounting frame.

A second aspect of an embodiment of the present invention provides a method for controlling a soft bag loading device, including any one of the above-described loading devices, where the method includes: 1) The soft bag slides downwards along the conveying plate along the direction perpendicular to the rotation axis A, triggers the triggering device and then slides to the appointed bag receiving device; 2) The triggering device controls the driving device to drive the conveying plate to rotate from the first angle a to a second angle b; 3) And when the conveying plate reaches a second angle b, the driving device drives the conveying plate to rotate from the second angle b to a first angle a so as to feed the next soft bag.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a prior art soft bag construction;

fig. 2 is a perspective view of a feeding device according to a first embodiment of the present invention;

fig. 3 is a side view of a feeding device according to a first embodiment of the present invention;

fig. 4A is a schematic structural view of a conveying plate for providing a first angle according to an embodiment of the present invention;

FIG. 4B is a schematic diagram of a conveying plate structure when a second angle is provided according to an embodiment of the present invention;

fig. 5 is a schematic view of a driving device according to an embodiment of the present invention;

FIG. 6 is a schematic view of a sensor assembly according to one embodiment of the present invention;

FIG. 7 is a schematic view of a bag receiving device according to an embodiment of the present invention;

FIG. 8A is a partial enlarged view of FIG. 7 at B;

FIG. 8B is an enlarged view of a portion of FIG. 7 at C;

FIG. 9A is a schematic view of a driving device at a first angle according to another embodiment of the present invention;

fig. 9B is a schematic view of a driving device at a second angle according to another embodiment of the present invention.

Icon: 1-soft bag feeding device; 100-conveying plate; a-a rotation axis; a-a first angle; b-a second angle; 200-soft bag; 300-bag receiving device; 301-an interface; 302-a slide; 303-track end; 304-a mount; 3041-a scale; 305-a first track plate; 306-a second track plate; 307-a resilient stop member; 3071-mounting seat; 3072-arc end; 3073-arc shaped section; 308-a sensor; 400-a drive device; 401-an electric machine; 402-eccentric wheel; 403-a drive rod; 500-a trigger device; 501-proximity switches; 502-a first lever; 5021-an adaptive end; 5022-a sensing end; 503-a first fixing bar; 504-a mount; 505c a second fixing bar; 600-a guide plate; a' -a first shaft; 401' -a first link; 402' -a second lever; b' -a second rotating shaft; d' -a third rotating shaft; c' -a fourth rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 2 and 3, the embodiment of the present invention provides a soft bag loading device 1, including a transfer plate 100, which is rotatable around a rotation axis a between a first angle a and a second angle b, where the first angle a is an angle at which a soft bag 200 slides along the transfer plate perpendicular to the rotation axis a to a designated bag receiving device 300; the second angle b is an angle at which the soft bag 200 is completely separated from the transfer plate 100; a driving device 400 for driving the conveying plate 100 to rotate between the first angle a and the second angle b; a trigger device 500 for sensing the flexible bag 200; when the soft bag is sensed by the triggering device 500, the driving device 400 drives the conveying plate 100 to rotate from the first angle a to a second angle b; after the conveying plate 100 reaches the second angle, the driving device 400 will drive the conveying plate 100 to rotate from the second angle b to the first angle a to load the next soft bag 200. The soft bag feeding device 1 is simple in structure and can be used and manufactured economically; simultaneously, it is accurate that it has the material loading, hangs the bag success rate height, satisfies the use occasion of high strength material loading.

It should be noted that the "sensing" may be performed by a sensor, or may be performed by physical contact, as long as the number or position of the bag bodies can be measured by the device.

As shown in fig. 2, the head end of the conveying plate 100 is rotatably connected to the rotation axis a, and the rotation axis may be rod-shaped, fixed, or the like, as long as the conveying plate 100 can rotate around the rotation axis; the transfer plate is generally plate-shaped, but its ends are preferably arranged horizontally at the first angle a to better slide the flexible bags 200 along the transfer plate 100 to the designated bag receiving means 300. When the soft bag 200 is conveyed, the head made of rigid plastic is placed towards the conveying direction, and at the first angle a, the head made of rigid plastic slides downwards along the conveying plate 100 by means of the gravity of the head until the head of the soft bag is clamped with the bag receiving device 300.

It should be noted that in the above preferred real-time manner, the axis of rotation a may be located elsewhere on the transfer plate, such as in the middle of the transfer plate, anywhere between the middle and the head end, or near the tail end, so long as the transfer plate 100 can be disengaged from the flexible bags at the second angle b; the shape of the conveying plate can also adopt an arc slideway or a plate-shaped structure. Only when the first angle a is used, the soft bag 200 can automatically slide to the designated position under the action of the self gravity.

As shown in fig. 4A and 4B for the first angle a and the second angle B, as shown in fig. 4A, the first angle a is an angle between the conveying plate 100 and the vertical direction with the rotation axis a as a center, and at this angle, the soft bag 200 can slide downward along the conveying plate 100; the first angle a is exemplary and does not represent a specific numerical value, and when the conveying plate 100 is arc-shaped, an included angle between a certain point on the conveying plate 100 as a reference point and the vertical direction may be selected as a; the transfer plate 100 is rotated about the rotation axis a by the driving unit 400, and when the transfer plate 100 is rotated to the second angle b, the soft bag 200 is disengaged from the transfer plate 100.

In this embodiment, the driving device 400 includes a driving source, which is a cylinder, the cylinder is disposed at the lower portion of the conveying board 100, the end of the piston is rotatably connected to the lower portion of the conveying board 100, when the piston is extended, the conveying board 100 is at the first angle a position, when the piston is retracted, the conveying board 100 is at the second angle b position,

it should be noted that the driving device 400 may also be a combination of a driving source and a transmission device, where the driving source includes, but is not limited to, one or more of a motor, an internal combustion engine, a hydraulic drive, a pneumatic drive, and the like, as long as it can achieve power output, and the power of the driving source is transmitted to the conveying plate 100 under the action of the transmission device to drive the conveying plate to move between the first angle a and the second angle b. For example, as shown in fig. 5, a power source of the driving device, a motor 401 is fixedly connected to an eccentric wheel 402, the eccentric wheel 402 is driven to rotate, a driving rod 403 is rotatably connected to the eccentric wheel 402, the other end of the driving rod 403 is rotatably connected to the conveying plate 100, reciprocating motion of the conveying plate 100 can be achieved under the driving of the motor 401, and since the motor can rotate in one direction, the period and frequency of bag hanging can be adjusted by adjusting the rotation speed of the motor, which is more convenient for the subsequent control process.

In this embodiment, the triggering device 500, as shown in fig. 6, includes a proximity switch 501 and a first lever 502, the proximity switch 501 is fixedly mounted on a first fixing rod 503 through a mounting seat 504, the mounting seat 504 makes the proximity switch 501 away from the first fixing rod 503, where "away" means that there is a gap between the proximity switch 501 and the first fixing rod 503; the first lever 502 is rotatably connected to a first fixing rod 503, and the adapting end 5021 of the first lever 502 is adapted to the proximity switch 501, where adaptation means that the proximity switch 501 is matched with one end of the first lever 502 to generate an electric signal, the sensing end 5022 of the first lever 502 is arranged at the end of the conveying plate 100, and when no soft bag passes through, the first lever 502 is in contact with the proximity switch 501 under the action of gravity; when the soft bag 200 slides downwards along the conveying plate 100, the soft bag collides with the sensing end 5022 of the first lever 502, the first lever 502 rotates around the first fixing rod 503, and at the same time, the adaptive end of the first lever 502 is far away from the proximity switch 501, so that an electric signal can be output to the controller, and counting or corresponding subsequent control actions can be performed.

It should be noted that, the above-mentioned embodiment is a preferred embodiment of the present invention, the proximity switch in the triggering device may also be replaced by a hall sensor or other sensors, and one end of the first lever 502 adapted to the hall sensor or other sensors is provided with a magnet or other adapting ends capable of enabling the corresponding sensors to generate electrical signals; the present invention may use image recognition, gravity recognition, such as sensing the weight of the transfer plates 100 as they are being transported, or the motion or vibration of the transfer plates to identify the number and position of the pockets, to sense the soft pockets 200. In addition, in this embodiment, the rotating shaft of the first lever 502 is disposed in the middle, and the two ends are respectively an adapting end 5021 adapted to the proximity switch and a sensing end 5022 disposed at the end of the conveying plate, so that the rotating shaft is disposed at one side of the first lever 502, and the adapting end 5021 and the sensing end 5022 are disposed at the same side of the rotating shaft based on actual conditions; not specifically defined herein, the fitting end 5021 of the first lever 502 refers to a portion for sensing with a sensor, and the sensing end of the first lever 502 refers to a portion for contacting with the flexible bag 200.

In this embodiment, a bag receiving device 300 is further provided, as shown in fig. 7, the bag receiving device 300 has an interface 301 disposed upward, and a chute 302 communicated with the interface 301, the size of the interface 301 is larger than the diameter of the head of the soft bag to facilitate the entry of the head of the soft bag into the interface 301, the width of the chute 302 is larger than the diameter of the neck of the soft bag 200 and smaller than the diameter of the head of the soft bag, therefore, after the head of the soft bag is snapped into the interface 301, the conveying plate 100 is driven by the driving device to rotate from the first angle a to the second angle b, at this time, the conveying plate is separated from the bag body 200, and is conveyed to the end 303 of the rail along the chute 302 at the lower part of the interface 301 under the action of gravity of the bag body 200, and because the width of the rail is smaller than the head of the soft bag, the soft bag 200 cannot be separated from the chute 302. The interface 301 and the slide 302 in this embodiment are formed by detachably connecting a plurality of pairs of first track plates 305 and second track plates 306 to the fixing frame 304, the upper parts of the first track plates 305 and the second track plates 306 are recessed inwards to make the size of the interface 301 larger than the diameter of the head of the soft bag, and the width of the slide 302 is controlled by controlling the distance between the first track plates 305 and the second track plates 306.

In addition, the first track plate 305 and the second track plate 306 in this embodiment are connected by a fixing rod of the fixing frame 304, and the fixing rod is provided with a scale 3041, as shown in fig. 8A, which facilitates subsequent adjustment and installation of the track plates; secondly, when the soft bag slides downwards along the slide way 302 from the port 301, the soft bag may slide out of the end of the slide way 302, in order to prevent the soft bag 200 from sliding out, at the end of the slide way 302, the first track plate 305 and the second track plate 306 are respectively provided with an elastic stop component 307, the distance between the two elastic stop components is smaller than the diameter of the neck of the soft bag 200, and the soft bag sliding down from the slide way 302 is ensured not to be separated from the elastic stop components; when the soft bag head is forcibly clamped by external force to take out the soft bag from the bag receiving device 300, the two elastic stopping components are opened under the action of the external force to allow the soft bag to be taken out from the bag receiving device 300, and after the soft bag 200 is taken out, the two elastic stopping components restore to the original state under the action of self elastic force. As shown in fig. 8B, the ends of the first track plate 305 and the second track plate 306 are horizontal, the ends have mounting seats 3071 for fixing the elastic stopping members 307, the elastic stopping members 307 have arc-shaped end portions 3072 for preventing damage to the head of the soft bag when the soft bag is stopped, the elastic member 307 between the arc-shaped end portions 3072 and the mounting seats 3071 is provided with arc-shaped portions 3073, the elastic deformation degree of the elastic stopping members 307 can be increased in a limited space by the arrangement of the arc-shaped portions 3073, the occupied space of the elastic stopping members is saved, and if a straight connection is adopted, the elastic deformation degree is smaller, and plastic deformation may occur during use; the mounting seat 3071 is further provided with a sensor 308 for sensing whether the soft bag 200 is present at the end of the bag receiving device 300, wherein the sensor 308 is preferably a photoelectric sensor, and the sensor 308 is used for sensing the head or the neck of the soft bag 200; in order to prevent the sensor 308 from missing, the distance between the connection between the inclined ramps of the first track plate 305 and the second track plate 306 and the horizontal end and the elastic stop part 307 is less than or equal to the diameter of the head or neck of the flexible bag 200.

In this embodiment, the conveying plate further comprises a guide plate 600, as shown in fig. 2, the guide plate 600 is disposed on both sides of the conveying plate 100 to guide the soft bags and prevent the soft bags from sliding out of both sides of the conveying plate 100, the guide plate 600 is mounted on both sides of the conveying plate 100 through a guide plate mounting rack, the guide plate mounting rack comprises a plurality of fixing rods, and preferably, the guide plate mounting rack can be shared with the first fixing rods 503; the guide plate 600 is detachably mounted on the first fixing rod 503, and further comprises a second fixing rod 505, the guide plate 600 is detachably mounted on the second fixing rod 505, preferably, graduated scales are arranged on the first fixing rod 503 and the second fixing rod 505, so that the guide plate 600 can be conveniently adjusted and mounted subsequently, and the requirements of soft bags with different specifications are met. The conveying plate 100 may be provided in plurality, and when a plurality of conveying plates 100 are provided, a plurality of guide plates 600 may be installed such that the guide plates 600 are provided on both sides of each conveying plate 100.

Example two

In another embodiment of the present invention, the reciprocating motion of the conveying plate 100 between the first angle a and the second angle b may be achieved by a mechanical trigger.

As shown in fig. 9A and 9B, the triggering device 500 is a first lever 502, the first lever 502 is rotatably connected to a first rotating shaft a ', and the first rotating shaft a' is immovable with respect to the space; the driving device 400 includes a first link 401 'and a second lever 402', one end of the first link 401 'and the first lever 502 are rotatably connected to a second rotation shaft B', which is movable with respect to the space; the other end of the first link 401' and one end of the second lever 402' are rotatably connected to a third rotation shaft D ', which is movable with respect to the space; the other end of the second lever 402' is connected with the conveying plate; the fulcrum of the second lever is rotatably connected to the fourth rotating shaft C ', and the fourth rotating shaft C' is immovable with respect to the space.

As shown in fig. 9A, when no soft bag 200 passes through, the first lever 502 is in a drooping state by the gravity of the sensing end 5022, and the other end corresponding to the sensing end 5022 provides a pulling force to the first link 401', thereby allowing the other end of the second lever 402' to support the transfer plate 100 by the lever action. The amount of support force may be adjusted by the amount of lever force, by varying the weight of sensing tip 5022, or by a combination of both, since the transfer plate 100 cannot rotate when the soft bag is initially transferred, the support force provided by second lever 402' to transfer plate 100 must be greater than the sum of the maximum force generated by sliding soft bag 200 over transfer plate 100 and the weight of transfer plate 100.

As shown in fig. 9B, when the soft bag hits the sensing end 5022 of the first lever 502, the first lever 502 is rotated clockwise around the first rotation axis a ', thereby generating a downward pushing force on the first link 401', pushing the second lever 402 'to rotate clockwise around the fourth rotation axis C', so that the transfer plate 100 is no longer supported, and the transfer plate 100 is rotated downward to the second angle B under the action of gravity. After the soft bags are hung, the soft bags 200 are separated from the conveying plate 100, at the moment, the first lever 502 rotates in the counterclockwise direction under the action of gravity of the sensing end 5022, so that the first connecting rod 401' is pulled to move upwards, the first connecting rod 401' pulls the second lever 402' to rotate in the counterclockwise direction, and therefore the conveying plate is supported, the conveying plate 100, the trigger device 500 and the driving device 400 return to the state shown in fig. 9A again, continuous and reciprocating feeding of the soft bags is achieved, in the embodiment, the feeding is performed in a mechanical mode, a power device is omitted, manufacturing and using costs are reduced, the structural design is ingenious, and reciprocating motion of the conveying plate 100 between the first angle a and the second angle b is achieved through a simple connecting rod mechanism.

It should be noted that, in the present invention, the motion control of the conveying plate 100 is realized by the above-mentioned link rod, and the specific connection positions of the link rod and the lever are only required to satisfy that when a soft bag is on the conveying plate 100, the sum of the maximum force applied to the conveying plate and the gravity of the conveying plate is smaller than the supporting force applied to the conveying plate by the second lever 402'; in addition, it should be ensured that the momentum of the soft bag 200 when sliding downward is sufficient to bump the trigger device into a specific position, which is a position of the trigger device when the soft bag 200 can be separated from the transfer plate 100 by the movement principle of the connecting rod.

The present invention further includes a counting device, which may be a proximity switch, a hall sensor or a sensor thereof, adapted to the triggering device 500 or the driving device 400.

The invention also provides a control method of the soft bag feeding device, which comprises the feeding device, and the method comprises the following steps: 1) The soft bag 200 slides down along the conveying plate 100 along the direction perpendicular to the rotation axis A, and triggers the triggering device 500, and then slides to the designated bag receiving device 300; 2) The trigger device 500 controls the driving device to drive the conveying plate 100 to rotate from the first angle a to a second angle b; 3) After the conveying plate 100 reaches the second angle b, the driving device 400 drives the conveying plate 100 to rotate from the second angle b to the first angle a so as to load the next soft bag.

It should be noted that the soft bag 200 firstly triggers the triggering device 500, generates an electrical signal, and controls the driving mechanism 400 or controls the link mechanism to adjust the angle of the conveying plate, and even if the angle of the conveying plate changes, the soft bag can slide down to the designated bag receiving device 300 under the action of inertia force because the soft bag 200 has kinetic energy and inertia during sliding.

The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A soft bag loading device comprises a conveying plate, wherein the conveying plate can rotate around a rotating axis between a first angle and a second angle, and the first angle is an angle for sliding a soft bag along the conveying plate along the direction perpendicular to the rotating axis to a designated bag receiving device; the second angle is an angle at which the soft bag is completely separated from the conveying plate;

a trigger device for sensing the flexible bag;

when the triggering device senses the soft bag, the driving device drives the conveying plate to rotate from the first angle to a second angle; after the conveying plate reaches the second angle, the driving device drives the conveying plate to rotate from the second angle to the first angle so as to feed the next soft bag;

the bag receiving device comprises an upward port and a slideway communicated with the port, and the port is larger than the diameter of the head of the soft bag; the width of the slide way is larger than the diameter of the neck of the soft bag and smaller than the diameter of the head of the soft bag.

2. A loading arrangement according to claim 1, wherein the ends of the runners are provided with resilient stop members.

3. A loading apparatus as claimed in claim 2, wherein said resilient stop member comprises a radiused end, a fixed mounting portion and an arcuate portion disposed between the radiused end and the fixed mounting portion.

4. A loading attachment as claimed in claim 1, in which the slideway is detachably mounted on a mounting bracket, the mounting bracket having a scale disposed thereon.

5. A loading arrangement according to claim 1, wherein the axis of rotation of the conveyor plate is arranged at the head end of the conveyor plate.

6. A loading device as claimed in claim 1, said triggering means being a sensor assembly provided at the end of the conveyor plate.

7. The loading device as claimed in claim 6, wherein the sensor assembly comprises a first lever rotatably disposed on a first fixed rod and a proximity switch fixedly disposed on the first fixed rod and remote from the first fixed rod; the sensing end of the first lever senses the soft bag, and the adapting end of the first lever is adapted to the proximity switch.

8. The loading device as claimed in claim 7, wherein the first fixing rod is provided with a graduated scale.

9. A loading device according to any one of claims 1 to 8, wherein said drive means includes a drive source and a transmission or drive source, said drive source driving the transmission means to rotate the transfer plate from the second angle to the first angle to load the next flexible bag when said transfer plate reaches the second angle; or the driving source directly drives the conveying plate to rotate from the second angle to the first angle so as to feed the next soft bag.

10. A loading device as claimed in claim 1, said drive means comprising a first link and a second lever; one end of the first connecting rod is rotatably connected with the trigger device; the other end of the first connecting rod is rotatably connected with one end of the second lever; the other end of the second lever is connected with the conveying plate; the fulcrum of the second lever is connected in a rotationally immovable manner with respect to the space.

11. A feeding device according to claim 10, further being provided with a counter for adapting the triggering device or the driving device.

12. A loading apparatus according to any one of claims 1 to 11, wherein said conveying plate is provided in plurality, and guide plates are provided on both sides of the conveying plate.

13. A loading attachment as claimed in claim 12, in which the guide plate is removably mounted on a guide plate mounting bracket, the guide plate mounting bracket being provided with a scale.

14. A method of controlling a flexible bag loading apparatus using the loading apparatus of any one of claims 1 to 13, the method comprising: 1) The soft bag slides downwards along the conveying plate along the direction perpendicular to the rotation axis A, triggers the triggering device and then slides to the appointed bag receiving device; 2) The triggering device controls the driving device to drive the conveying plate to rotate from the first angle a to a second angle b; 3) When the conveying plate reaches the second angle b, the driving device drives the conveying plate to rotate from the second angle b to the first angle a so as to load the next soft bag.