CN107244436B

CN107244436B - Auxiliary filling equipment, liquid filling system and liquid filling method

Info

Publication number: CN107244436B
Application number: CN201710499259.9A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shanghai Hongyan Returnable Transit Packagings Co Ltd
Current assignee: Shanghai Hongyan Returnable Transit Packagings Co Ltd
Priority date: 2017-06-27
Filing date: 2017-06-27
Publication date: 2023-11-03
Anticipated expiration: 2037-06-27
Also published as: CN107244436A; WO2019001306A1

Abstract

The application discloses auxiliary filling equipment, a liquid filling system and a liquid filling method. The liquid filling system comprises auxiliary filling equipment, a medium bulk container and a liner bag, wherein the liner bag is provided with a filling opening, the medium bulk container is provided with a base and a side plate, and the side plate is connected to the base. The auxiliary filling device comprises a releasing device and a clamping device, wherein the clamping device is used for clamping a part of the bag and is associated with the releasing device, and the releasing device and the clamping device are arranged so that the clamped part of the bag moves through the releasing device during the process of filling the bag. The liquid filling system and the auxiliary filling equipment can improve the liquid filling efficiency.

Description

Auxiliary filling equipment, liquid filling system and liquid filling method

Technical Field

The present application relates to liquid filling systems, and in particular to systems for filling liquids into liner bags placed in containers.

Background

In the industry, medium bulk containers are used in conjunction with liner bags to fill and drain liquids, and there are a wide variety of liner bags and methods and schemes for filling and draining.

Foreign patent with application number of ES2318191T3 discloses a folding and filling method for sealing a lining bag, the folding of the lining bag is complex, a large amount of labor is required for carrying out the operation of the part, the filling process is a side filling process, but a liquid bag matched with the special folding method is required, in the filling process, some liquid can be flushed into a lining bag cavity at the top (110 part in the diagram of the patent) in advance, so that the bag cannot be automatically unfolded, the lining bag is required to be manually pulled, and the labor and the operating efficiency are wasted.

Foreign patent ES2451505T3 discloses a sealed lining bag which is folded into a T shape, and the folding method of the lining bag is complex and has the problem of labor and time.

Disclosure of Invention

The application aims at providing auxiliary filling equipment, a liquid filling system and a liquid filling method with high filling efficiency.

To achieve the above object, according to a first aspect of the present application, there is provided an auxiliary filling device for filling a bag provided with a filling opening with a liquid, the auxiliary filling device comprising a releasing means and a clamping means, wherein the clamping means is for clamping a portion of the bag and is associated with the releasing means, the releasing means and the clamping means being arranged such that during filling of the bag, the clamped portion of the bag is moved by the releasing means.

In an embodiment, the auxiliary filling device further comprises a bridge mount, wherein the bridge mount is provided with a filling mounting portion, the releasing device is mounted on the bridge mount, the clamping device is used for clamping a part of the bag and is associated with the releasing device, the releasing device and the clamping device are arranged such that during the filling of the bag, the clamped part of the bag moves relative to the filling mounting portion through the releasing device.

In an embodiment, the filling installation part is disposed in the middle of the bridge stand, and two ends of the bridge stand are provided with fixing parts, wherein the fixing parts are used for installing the bridge stand on a container, and the container is used for accommodating the bag.

In an embodiment, the container is provided with a base and a side plate hinged to the base, wherein the fixing part is arranged for mounting the bridge seat on top of the side plate.

In one embodiment, the fixing portion is provided with a clip extending downward.

In an embodiment, the bridge seat is arranged to be telescopic.

In an embodiment, the holding device is further arranged to move away from the filling mounting portion during filling of the bag.

In an embodiment, the bridge stand comprises a bridge stand body and sliding pieces arranged at two ends of the bridge stand body, wherein the bridge stand body is provided with a sliding groove extending along the length extending direction of the bridge stand body, and the sliding pieces are arranged on the sliding groove and can move along the sliding groove.

In one embodiment, the buffer device and the clamping device comprise elastic belts, two ends of each elastic belt are respectively arranged at two ends of the bridge frame seat and are pretensioned, and when the bag is in use, the clamped part of the bag is arranged between the elastic belts and the bridge frame seat.

In an embodiment, the slow release device includes a sliding rail and a sliding member, wherein the sliding rail is disposed at two sides of the bridge stand and is perpendicular to the bridge stand, the sliding member is mounted on the sliding rail and can move along the sliding rail, and the clamping device is disposed on the sliding member.

In an embodiment, the slow release device includes a rotating member and an elastic member, wherein two ends of the rotating member are respectively hinged to two ends of the bridge frame base, two ends of the elastic member are respectively connected to the bridge frame base and the rotating member, and the clamping device is disposed on the rotating member.

According to a second aspect of the present application there is provided a liquid filling system comprising a bulk container and a liner bag, the liner bag being provided with a filling opening, the bulk container being provided with a base and a side panel, the side panel being connected to the base, the liquid filling system further comprising an auxiliary filling device comprising a buffer means and a gripping means, wherein the gripping means is for gripping a portion of the bag and is associated with the buffer means, the buffer means and the gripping means being arranged such that during filling of the bag the gripped portion of the bag is moved by the buffer means.

In an embodiment, the auxiliary filling device and the liner bag are arranged such that during filling of the liner bag with liquid, the auxiliary filling device constrains the liner bag to be unfolded in a predetermined order.

In one embodiment, the liner bag is further provided with a drain, and the base is provided with a drain channel, wherein the drain channel is used for installing the drain.

In an embodiment, the auxiliary filling device is provided with a filling installation part for installing a filling opening of the liner bag.

In an embodiment, the auxiliary filling device is arranged on a side panel of the intermediate bulk container.

In one embodiment, the liner bag is a pillow-type liner bag and has a folded state and an unfolded state when not filled with liquid, wherein in the folded state, the filling opening and the discharge opening of the liner bag are located on the same side, a portion of each of the left and right sides of the liner bag is folded toward the side opposite to the side on which the filling opening and the discharge opening are provided, and a portion of each of the upper and lower sides of the liner bag is folded toward the side opposite to the side on which the filling opening and the discharge opening are provided and is located above the folded portion of each of the left and right sides of the liner bag.

In an embodiment, the auxiliary filling device further comprises a bridge mount, wherein the filling mount is arranged on the bridge mount, the buffer device is mounted on the bridge mount, and the buffer device and the clamping device are arranged such that during filling of the liner bag, the clamped portion of the liner bag moves relative to the filling mount via the buffer device.

In an embodiment, the filling installation part is arranged in the middle of the bridge frame seat, and two ends of the bridge frame seat are provided with fixing parts, wherein the fixing parts are used for installing the bridge frame seat on the top of the side plate of the intermediate bulk container.

In an embodiment, the bridge seat is arranged to be telescopic.

In an embodiment, the buffer device and the gripping device are further arranged such that during filling of the liner bag, the gripping device moves away from the filling mounting.

In an embodiment, the buffer device and the clamping device comprise elastic belts, two ends of each elastic belt are respectively installed at two ends of the bridge frame seat and are pre-tensioned, and when the buffer device and the clamping device are used, the clamped part of the lining bag is placed between the elastic belts and the bridge frame seat.

In one embodiment, the liner bag is a pillow-type liner bag and has a filling port and a discharge port, wherein the filling port and the discharge port are located on opposite sides, and the filling port is mounted on the bridge mount and the bridge mount is disposed on a side opposite the discharge port.

According to a third aspect of the present application, there is provided a liquid filling method comprising the steps of:

s1, providing a medium bulk container, a liner bag and auxiliary filling equipment, wherein the medium bulk container is provided with a base and side plates, the side plates are connected to the base, and the liner bag is provided with a filling opening;

s2, placing the lining bag in the medium-sized bulk container and associating the lining bag with the auxiliary filling equipment, so that the lining bag is restrained to be unfolded according to a preset sequence through the auxiliary filling equipment in the filling process;

s3, filling liquid into the lining bag through the filling opening.

In one embodiment, in step S2, the auxiliary filling device is placed on a side plate of the intermediate bulk container, and the filling port of the liner bag is fixedly mounted on the auxiliary filling device.

In one embodiment, the intermediate bulk container is further provided with a discharge channel, and the liner bag is further provided with a discharge port, and in step S2, the method further comprises installing the discharge port of the liner bag in the discharge channel.

In an embodiment, in the step S2, a portion of the liner bag is clamped to the auxiliary filling device.

In one embodiment, in step S1, a pillow-type liner bag is used and the liner bag is folded such that the filling opening and the discharge opening of the liner bag are located on the same side, a portion of each of the left and right sides of the liner bag is folded toward the side opposite to the side on which the filling opening and the discharge opening are provided, and a portion of each of the upper and lower sides of the liner bag is folded toward the side opposite to the side on which the filling opening and the discharge opening are provided and is located above the folded portion of the left and right sides of the liner bag.

In one embodiment, in step S2, a portion of the liner bag is clamped such that the clamped portion of the liner bag moves relative to the filling mount during filling of the liquid.

In an embodiment, the liner bag is a pillow-type liner bag and has a folded state and an unfolded state when not filled with liquid, in the unfolded state, the liner bag has four corners, and the clamped portions of the liner bag are two corners close to the filling opening, wherein in step S2, the two corners of the liner bag close to the filling opening are clamped to the auxiliary filling device.

The liquid filling system and the liquid filling method can achieve the effects of reducing manpower and improving filling efficiency.

Drawings

Fig. 1 is an exploded perspective view of a liquid filling system according to an embodiment of the present application.

Fig. 2 is a schematic view of the liner bag in an unfolded state when not filled with liquid.

Fig. 3-6 are schematic illustrations of the folding process of the liner bag of fig. 2.

Fig. 7 is an exploded view of the auxiliary filling device according to the first embodiment of the present application.

Fig. 8 is a perspective view of the auxiliary filling device of fig. 1.

Fig. 9 and 10 are two different usage states of the auxiliary filling device of fig. 1.

Fig. 11-14 are schematic perspective views of a process for filling a liner bag with liquid using the liquid filling system of fig. 1, with a portion of the intermediate bulk container removed for clarity.

Fig. 15-18 are schematic cross-sectional views of a process for filling a liner bag with liquid using the auxiliary filling apparatus of fig. 1.

Fig. 19 is a perspective view of an auxiliary filling device of a liquid filling system according to a second embodiment of the present application.

Fig. 20 is a top view of the auxiliary filling device of fig. 19.

Fig. 21-23 are schematic cross-sectional views of a process for filling a liner bag with liquid using the auxiliary filling apparatus of fig. 19.

Fig. 24-26 are perspective views of three states of use of the auxiliary filling device of the liquid filling system according to the third embodiment of the present application.

Fig. 27-29 are schematic cross-sectional views of a process for filling a liner bag with liquid using the auxiliary filling apparatus of fig. 24.

Fig. 30-32 are filling process diagrams of a liquid filling system according to another embodiment of the present application.

Fig. 33-34 are process diagrams of the installation of a liquid filling system according to yet another embodiment of the present application.

Fig. 35 is a flow chart of a liquid filling method according to an embodiment of the present application.

Detailed Description

The preferred embodiments of the present application will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present application will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the application, but rather are merely illustrative of the true spirit of the application.

In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and variations such as "comprises" and "comprising" will be understood to be open-ended, meaning of inclusion, i.e. to be interpreted to mean "including, but not limited to.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present application, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.

As shown in fig. 1, the liquid filling system includes an auxiliary filling device 100, an intermediate bulk container 101, and a liner bag 10. The liner bag 10 has a bag body 10a. The bag body is provided with a filling port 11 and a discharge port 12. The intermediate bulk container 101 is provided with a base 13 and a side panel 14, wherein the side panel 14 is connected to the base 13. The base 13 is provided with a discharge passage. The drain channel is used to mount the drain 12. When filling liquid, auxiliary filling equipment is connected with the lining bag and the auxiliary filling equipment and the lining bag are arranged to enable the lining bag to be automatically unfolded in the process of filling liquid into the lining bag.

The structure of the liner bag and the auxiliary filling device constituting the liquid filling system of the present application and the operation thereof are described in detail below.

As shown in fig. 2, the liner bag 10 is a pillow-type liner bag, and is formed by sealing and welding a front sheet and a rear sheet to form a substantially rectangular bag, and is generally made of a PE film. The front or rear piece is provided with a filling port 11 and a discharge port 12. When not filled with liquid, the liner bag 10 has a folded state and an unfolded state, wherein the unfolded state is the state in which the front and rear panels are unfolded after welding. In the folded state, the filling opening 11 and the discharge opening 12 of the liner bag are located on the same side. The liner bag has a portion 10b and 10c folded toward the side opposite to the side where the filling port 11 and the discharge port 12 are provided, and a portion 10d and 10e folded toward the side opposite to the side where the filling port and the discharge port are provided, respectively, on the upper and lower sides of the liner bag and above the folded portion on the left and right sides of the liner bag.

Specifically, as shown in fig. 3 to 6, when folding, the left and right parts (about one-fourth of the width of each) of the liner bag are folded away from the discharge port 12 and the filling port 11, and then the upper and lower parts (about one-fourth of the height of each) of the liner bag are folded away from the discharge port 12 and the filling port 11 and stacked on the left and right parts that have been folded first. Thereby, the folding of the liner bag is completed.

As shown in fig. 7 to 10, the filling aid 100 has a bridge base body 1. The middle part of the bridge frame seat body 1 is provided with a filling installation part 2. The filling attachment 2 is a through-hole, preferably shaped to match the filling opening to be installed or a pipe connected to the filling opening, for installing the filling opening or pipe. It should be understood that other configurations of the filling attachment may be used. The two sides of the bridge frame seat body 1 are provided with supporting rods 3. The support rod 3 is hollow inside, and the hollow inside serves as a chute. The hollow interior is fitted with a slider 4. The bridge seat body 1 and the sliding piece 4 together form a bridge seat. One side of the support rod 3 is provided with a plurality of limiting holes 5, and the other side opposite to the side provided with the limiting holes 5 is provided with an elastic piece 15. The two ends of the elastic piece 15 are respectively connected with the two ends of the bridge frame seat. In the drawing, both ends of the elastic member 15 are connected to the left and right sliding members 4, respectively, and the elastic member 15 is placed in a pretensioned state. The elastic member 15 may be a long elastic member such as an elastic band or a spring. The elastic member 15 cooperates with the support bar 3 and can serve both as a holding means for holding the liner bag and as a release means for allowing the holding portion of the liner bag to move slowly away from the filling opening during the liquid filling process. In an alternative embodiment, two ends of the elastic member 15 may be connected to two ends of the support rod 3, respectively.

The slider 4 is substantially U-shaped. One end of the sliding piece 4 is provided with two sliding rods 6 which are mutually spaced, and the other end is provided with a clamping piece 7. A catch tab 7 extends downwardly from the end of the slider 4. The snap tabs 7 are used to secure the auxiliary filling equipment to the side panels of the container. The sliding rod 6 is provided with a limiting hole 8. The slide rod 6 is inserted into the hollow interior of the bridge frame body 1 and is capable of sliding with respect to the bridge frame body 1.

The bridge frame seat body 1 is provided with a fixed button 9 and a return spring 16 at the limit hole 5. When the slide bar 6 slides to such an extent that its limit hole 8 is aligned with the limit hole 5 on the bridge frame base body 1, the fixing button 9 is pressed down, and the slide bar 6 will be fixed with respect to the bridge frame base body 1. The fixed button 9 is pressed again and the return spring 16 slides the lever 6 again in the movable state.

The use of the auxiliary filling device 100 will be described below taking as an example that the auxiliary filling device 100 is used for filling a liner bag placed in a medium bulk container with a liquid. As shown in fig. 11-14 and 15-18, the liner bag 10 is a pillow-type liner bag and has a filling port 11 and a discharge port. Pillow-type liner bags are typically welded together in a sealed manner from front and back panels, typically PE film. The intermediate bulk container 12 has a base 13 and side panels 14. The side plate 14 is connected to the base 13. The base 13 is provided with a discharge passage.

In the filling process, first, the liner bag 10 is placed in the intermediate bulk container 12 while the length of the bridge receptacle is adjusted and the bridge receptacle is snapped onto the top of the intermediate bulk container side panels 14. Then, the filling opening 11 of the liner bag 10 is assembled to the filling installation portion 2 of the bridge frame seat, the discharge opening of the liner bag 10 is assembled to the discharge passage of the base, and simultaneously, the upper two bag corners of the liner bag 10 are clamped by the elastic member 15 on the bridge frame seat, so that the two bag corners are positioned between the elastic member 15 and the bridge frame seat, and the effect is equivalent to the action that a person pulls the bag corners. Then starting to fill the liquid, wherein the lining bag is gradually opened by the liquid in the liquid filling process, and the bottom of the lining bag gradually moves to the side wall of the opposite aspect of the discharge channel on the bottom of the medium bulk container; continuing to fill the liquid, and gradually moving the two bag corners of the lining bag fixed by the elastic belt towards the middle of the box body under the action of elasticity along with the increase of the liquid in the lining bag; and (5) continuing filling until the bag corners are completely separated from the elastic belt of the bridge, and ending filling after the liquid is filled in the box.

In the filling process of the liquid, the lining bag is not required to be pulled by people, so that the filling without manual self-unfolding is realized.

It will be appreciated that the auxiliary filling device described above may also be used on other types of containers that may be used to house bag bodies such as liner bags, in particular pillow-type liner bags.

Fig. 19 is a perspective view of an auxiliary filling device according to a second embodiment of the present application. As shown in fig. 19, the filling assist apparatus 100a has a bridge base body 1a. The middle part of the bridge frame seat body 1a is provided with a filling installation part 2a. The filling attachment portion 2a is a through hole, the shape of which preferably matches the filling opening to be attached. Support rods 3a are arranged on two sides of the bridge frame seat body 1a. The support rod 3a is hollow inside, and the hollow inside serves as a chute. The hollow interior is fitted with a slider 4a. The bridge frame base body 1a and the sliding piece 4a form a bridge frame base together. One side of the support bar 3a is provided with a plurality of limiting holes 5a.

The slider 4a has a substantially U-shape. One end of the sliding piece 4a is provided with two sliding rods 6a which are mutually spaced, and the other end is provided with a clamping piece 7a. The catch piece 7a extends downwards from the end of the slider 4a. The snap tabs 7a are used to secure the auxiliary filling device to the side panels of the container. The slide rod 6a is provided with a limit hole. The slide rod 6a is inserted into the hollow interior of the bridge base body 1a and is slidable with respect to the bridge base body 1a.

The bridge frame seat body 1a is provided with a fixed button 9a at the limit hole 5a. When the slide bar 6a is slid so that its limit hole is aligned with the limit hole 5a on the bridge frame base body 1a, the fixing button 9a is pressed down, and the slide bar 6a will be fixed with respect to the bridge frame base body 1. The fixed button 9a is pressed again, and the slide lever 6a is again in the movable state.

The two sides of the bridge frame seat body 1a are also provided with sliding rails 17. The slide rail 17 is arranged perpendicularly to the bridge frame base body 1a. The slide rail 17 is provided with a slide groove 18. The slide groove 18 is provided with a slide 19, and the slide 19 can move along the slide groove. The slide 19 is provided with clamping means 20. The gripping device 20 is used for gripping a portion of the liner bag to be filled. The slide 17, the slide 19 and the gripping means 20 cooperate such that during filling of the liquid the gripped portion of the liner bag is slowly moved away from the filling opening.

Fig. 21-23 are schematic cross-sectional views of a process for filling a liner bag with liquid using the auxiliary filling apparatus of fig. 13. In the filling process, as shown in fig. 21-23, first, liner bag 10 is placed into intermediate bulk container 12 while the length of the bridge receptacle is adjusted and the bridge receptacle is snapped onto the top of side panels 14 of the intermediate bulk container. Next, the filling opening 11 of the liner bag 10 is assembled to the filling attachment portion 2a of the bridge stand, the discharge opening of the liner bag 10 is assembled to the discharge passage of the base, and the upper two bag corners of the liner bag 10 are clamped by the clamping device 20, which has an effect equivalent to an action of pulling the bag corners by someone. Then starting to fill the liquid, wherein the lining bag is gradually opened by the liquid in the liquid filling process, and the bottom of the lining bag gradually moves to the side wall of the opposite aspect of the discharge channel on the bottom of the medium bulk container; continuing to fill the liquid, as the liquid in the lining bag increases, the two bag corners of the lining bag fixed by the clamping device 20 gradually move towards the middle of the box body along the sliding piece 19 and the clamping device 20 along the sliding groove 18; filling is continued until the corners of the bag move with the holding device 20 into the middle of the box, and the filling is finished when the box is full of liquid. At this point, the clamped corners of the bag may be released and the auxiliary filling equipment removed. In the filling process of the liquid, the lining bag is not required to be pulled by people, so that the filling without manual self-unfolding is realized.

Fig. 24-26 are perspective views of three states of use of the auxiliary filling device according to the third embodiment of the application. As shown in fig. 24 to 26, the filling aid 100b has a bridge base body 1b. The middle part of the bridge frame seat body 1b is provided with a filling installation part 2b. The filling attachment portion 2b is a through hole, the shape of which preferably matches the filling opening to be attached. Support rods 3b are arranged on two sides of the bridge frame seat body 1b. The support rod 3b is hollow inside, and the hollow inside serves as a chute. The hollow interior is fitted with a slider 4b. The bridge frame base body 1b and the sliding piece 4b form a bridge frame base body together. One side of the support bar 3b is provided with a plurality of limiting holes 5b.

The slider 4b has a substantially U-shape. One end of the sliding piece 4b is provided with two sliding rods 6b which are mutually spaced, and the other end is provided with a clamping piece 7b. A catch tab 7b extends downwardly from the end of the slider 4b. The snap tabs 7b are used to secure the auxiliary filling device to the side panels of the container. The slide rod 6b is provided with a limit hole. The slide rod 6b is inserted into the hollow interior of the bridge base body 1b and is slidable with respect to the bridge base body 1b.

The bridge frame seat body 1b is provided with a fixed button 9b at the limit hole 5b. When the slide bar 6b slides so that its limit hole is aligned with the corresponding limit hole 5b on the bridge base body 1b, the fixing button 9b is pressed down, and the slide bar 6b will be fixed with respect to the bridge base body 1, thereby adjusting the projecting distance of the slide bar 6b with respect to the bridge base body 1b. The fixed button 9b is pressed again, and the slide lever 6b is again in the movable state.

The auxiliary filling device 100b is further provided with a rotating member 21 and an elastic member 22. Both ends of the rotating member 21 are hinged to the sliding members 4b on both sides of the bridge base body 1b, respectively. One end of the elastic member 22 is connected to the corresponding sliding member, and the other end is connected to the rotating member 21, so that when the rotating member 21 rotates clockwise in the drawing with respect to the bridge frame base body 1b, the elastic member 22 applies a pulling force to the rotating member 21, so that the rotating member 21 rotates slowly. The rotating member 21 is provided with a clamping device 23. The gripping means 23 are used for gripping a portion of the liner bag to be filled. The rotation element 21, the elastic element 22 and the gripping means 23 cooperate such that during filling of the liquid the gripped portion of the liner bag is slowly moved away from the filling opening.

Fig. 27-29 are schematic cross-sectional views of a process for filling a liner bag with liquid using the auxiliary filling apparatus of fig. 18. In the filling process, as shown in fig. 27-29, first, liner bag 10 is placed into intermediate bulk container 12 while the length of the bridge receptacle is adjusted and the bridge receptacle is snapped onto the top of side panels 14 of the intermediate bulk container. Next, the filling opening 11 of the liner bag 10 is assembled to the filling attachment portion 2a of the bridge stand 1b, the discharge opening of the liner bag 10 is assembled to the discharge passage of the base, and the upper two bag corners of the liner bag 10 are clamped by the clamping device 23, which has an effect equivalent to an operation of pulling the bag corners by a person. Then starting to fill the liquid, wherein the lining bag is gradually opened by the liquid in the liquid filling process, and the bottom of the lining bag gradually moves to the side wall of the opposite aspect of the discharge channel on the bottom of the medium bulk container; continuing to fill the liquid, as the liquid in the lining bag increases, the two bag corners of the lining bag fixed by the clamping device 23 gradually move towards the middle of the box body along with the rotation of the rotating piece 21; filling is continued until the corners of the bag move with the rotating member 21 to the middle of the box body, and filling is finished when the box is full of liquid. At this point, the clamped corners of the bag may be released and the auxiliary filling equipment removed. In the filling process of the liquid, the lining bag is not required to be pulled by people, so that the automatic unfolding filling is completely free of manual work, and the method is particularly suitable for filling viscous liquid.

Fig. 30-32 are filling process diagrams of a liquid filling system according to another embodiment of the present application. This embodiment uses the same auxiliary filling apparatus 100 as the embodiment shown in fig. 11-14, the main differences between the two being the installation location of the auxiliary filling apparatus 100, the folding and the manner of installation of the liner bag 10. Specifically, in the present embodiment, the auxiliary filling device 100 is placed on the side opposite to the discharge channel of the intermediate bulk container, i.e. the filling opening and the discharge opening of the liner bag are located on the sides of the intermediate bulk container opposite to the two side panels, respectively. The lining bag can be folded in a Z-shaped manner. In this case, it is preferable that the filling port and the discharge port are not provided on the same side of the pillow pouch, but that one side is provided with the filling port and the other side is provided with the discharge port. The filling process of this embodiment is substantially the same as the embodiment of fig. 11-14, and the liner bag is unfolded in a predetermined sequence during the filling process, which will not be described in detail herein.

Fig. 33-34 are filling process diagrams of a liquid filling system according to yet another embodiment of the present application. This embodiment uses substantially the same auxiliary filling equipment 100 as the embodiment shown in fig. 11-14, but instead of providing the elastic band 15, the elastic band 15 is replaced by two blocks 24 (e.g. balls) with a certain mass. During the filling process, the two block-shaped bodies 24 are respectively tied to two bag corners of the lining bag 10, which are close to the filling opening, and the block-shaped bodies 24 slowly move upwards under the driving of the lining bag along with the filling of the liquid. Here, the presence of the block 24 is such that it corresponds to a pulling of the bag during filling, which has the effect of causing the bag to be unfolded in a predetermined sequence.

It should be noted that in each of the above embodiments, the liner bag is provided with a filling port and a discharge port, and it should be understood that the auxiliary filling apparatus of the present application may also be used to fill liner bags that are not provided with a discharge port, but are provided with only a filling port. The auxiliary filling device and the liner bag described above may also be combined with other containers than intermediate bulk containers to form a liquid filling system.

Fig. 35 shows a flow chart of a method of liquid filling using the liquid filling system described above. As shown in fig. 35, the liquid filling method includes the steps of:

s2, placing the lining bag in the medium-sized bulk container and associating with the auxiliary filling equipment, so that the lining bag is restrained to be unfolded according to a preset sequence through the auxiliary filling equipment in the filling process;

s3, filling liquid into the lining bag through the filling opening.

In the step S2, the auxiliary filling device may be disposed on a side plate of the intermediate bulk container, and the filling port of the liner bag may be fixedly mounted on the auxiliary filling device.

In the method, the intermediate bulk container is further provided with a discharge channel, the liner bag is further provided with a discharge port, and in the step S2, the method further comprises the step of installing the discharge port of the liner bag in the discharge channel.

In the step S2, a part of the liner bag may be clamped to the auxiliary filling device;

in the above step S2, the clamped portions of the liner bag are preferably two corners of the liner bag near the filling opening. In operation, the two corners of the liner bag, which are adjacent to the filling opening, are pulled out first, and then the two corners are clamped on the clamping devices of the auxiliary filling equipment respectively. Further, in step S2, the clamped portion of the liner bag is clamped such that the clamped portion of the liner bag gradually moves away from the filling attachment during filling of the liquid.

By the method, the lining bag can be automatically unfolded in the liquid filling process without manually pulling the bag to assist in unfolding, and the method is particularly suitable for filling viscous liquid.

It should be understood that in the above embodiments, the liner bag is a pillow-type liner bag, but the liner bag may be another type of bag. In addition, in the above embodiments, the folding method of the pillow-type inner bag is not limited to the folding method shown in the drawings, but other folding methods that can automatically unfold the inner bag may be employed.

While the preferred embodiments of the present application have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other variations on the embodiments can be made in view of the above description. In the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

Claims

1. An auxiliary filling device for filling liquid into a bag provided with a filling opening, characterized in that the auxiliary filling device comprises a buffer device, a clamping device and a bridge seat, wherein the bridge seat is provided with a filling installation part, the buffer device is installed on the bridge seat, the clamping device is used for clamping a part of the bag and is associated with the buffer device, the buffer device and the clamping device are arranged in the process of filling the bag, and the clamped part of the bag moves away from the filling installation part through the buffer device.

2. The auxiliary filling apparatus according to claim 1, wherein the filling mounting portion is provided in a middle portion of the bridge stand, and both ends of the bridge stand are provided with fixing portions for mounting the bridge stand on a container, and the container is for accommodating the bag.

3. The auxiliary filling device according to claim 2, wherein the container is provided with a base and a side plate hinged to the base, wherein the fixing portion is provided for mounting the bridge seat on top of the side plate.

4. Auxiliary filling device according to claim 2, wherein the fixing portion is provided with downwardly extending snap tabs.

5. The auxiliary filling device according to claim 1, wherein the bridge base is arranged to be telescopic.

6. The auxiliary filling equipment according to claim 1, wherein the bridge stand comprises a bridge stand body and sliding pieces arranged at two ends of the bridge stand body, a sliding groove extending along the length extending direction of the bridge stand body is arranged on the bridge stand body, and the sliding pieces are arranged on the sliding groove and can move along the sliding groove.

7. The auxiliary filling device according to claim 1, wherein the buffer means and the clamping means comprise elastic bands, the ends of which are mounted at the ends of the bridge seat and pretensioned, respectively, the clamped portion of the bag being interposed between the elastic bands and the bridge seat in use.

8. The auxiliary filling device according to claim 1, wherein the buffer means comprises a slide rail and a slide member, wherein the slide rail is arranged on both sides of the bridge base and perpendicular to the bridge base, the slide member is mounted on the slide rail and movable along the slide rail, and the holding means is provided on the slide member.

9. The auxiliary filling device according to claim 1, wherein the buffer device comprises a rotating member and an elastic member, wherein two ends of the rotating member are respectively hinged to two ends of the bridge frame base, two ends of the elastic member are respectively connected to the bridge frame base and the rotating member, and the clamping device is arranged on the rotating member.

10. A liquid filling system, the liquid filling system includes medium-sized bulk container and inside lining bag, the inside lining bag is equipped with the filling mouth, medium-sized bulk container is equipped with base and curb plate, the curb plate connect in the base, its characterized in that, liquid filling system further includes supplementary filling equipment, supplementary filling equipment includes slow release device, clamping device and bridge frame seat, wherein be equipped with the filling installation department on the bridge frame seat, slow release device install in the bridge frame seat, wherein clamping device is used for centre gripping a part of sack and with slow release device is associated, slow release device with clamping device arranges into in the in-process of filling the sack, the part of being gripped of sack is passed through slow release device is kept away from the movement of filling installation department.

11. The liquid filling system of claim 10, wherein the auxiliary filling apparatus and the liner bag are configured such that during filling of the liner bag with liquid, the auxiliary filling apparatus restrains the liner bag to be deployed in a predetermined sequence.

12. The liquid filling system of claim 10, wherein the liner bag is further provided with a drain, and the base is provided with a drain channel, wherein the drain channel is configured to receive the drain.

13. The liquid filling system of claim 10, wherein the auxiliary filling equipment is disposed on a side panel of the intermediate bulk container.

14. The liquid filling system of claim 12, wherein the liner bag is a pillow-type liner bag and has a folded state and an unfolded state when not filled with liquid, wherein in the folded state, a filling port and a discharge port of the liner bag are located on the same side, a portion of each of the liner bag is folded toward a side opposite to a side on which the filling port and the discharge port are provided, and a portion of each of the liner bag is folded up and down toward a side opposite to a side on which the filling port and the discharge port are provided and above the folded portion of each of the liner bags.

15. The liquid filling system of claim 10, wherein the filling mounting portion is disposed in a middle portion of the bridge frame mount, and both ends of the bridge frame mount are provided with fixing portions for mounting the bridge frame mount on top of side plates of the intermediate bulk container.

16. The liquid filling system of claim 10, wherein the bridge mount is arranged to be telescoping.

17. The liquid filling system according to claim 10, wherein the bridge base comprises a bridge base body and sliding members mounted at both ends of the bridge base body, the bridge base body being provided with a slide groove extending in a length extending direction of the bridge base body, and the sliding members being mounted on the slide groove and being movable along the slide groove.

18. The liquid filling system of claim 10, wherein the buffer means and the clamping means comprise elastic bands, the elastic bands having ends respectively mounted at the ends of the bridge mount and pre-tensioned, the clamped portion of the liner bag being interposed between the elastic bands and the bridge mount in use.

19. The liquid filling system of claim 10, wherein the buffer device comprises a slide rail and a slide member, wherein the slide rail is disposed on both sides of and perpendicular to the bridge base, the slide member is mounted on the slide rail and is movable along the slide rail, and the clamping device is disposed on the slide member.

20. The liquid filling system of claim 10, wherein the buffer device comprises a rotating member and an elastic member, wherein two ends of the rotating member are respectively hinged to two ends of the bridge frame base, two ends of the elastic member are respectively connected to the bridge frame base and the rotating member, and the clamping device is arranged on the rotating member.

21. The liquid filling system of claim 10, wherein the liner bag is a pillow-type liner bag and has a filling port and a discharge port, wherein the filling port and the discharge port are located on opposite sides, and wherein the filling port is mounted on the bridge mount and the bridge mount is disposed on a side opposite the discharge port.

22. A liquid filling method comprising the steps of:

s1, providing a medium bulk container, a liner bag and auxiliary filling equipment, wherein the medium bulk container is provided with a base and side plates, the side plates are connected to the base, and the liner bag is provided with a filling opening; the auxiliary filling equipment comprises a slow release device, a clamping device and a bridge frame seat, wherein a filling installation part is arranged on the bridge frame seat, the slow release device is installed on the bridge frame seat, the clamping device is used for clamping a part of a bag and is associated with the slow release device, and the slow release device and the clamping device are arranged so that the clamped part of the bag moves away from the filling installation part through the slow release device in the process of filling the bag;

s3, filling liquid into the lining bag through the filling opening.

23. The liquid filling method of claim 22, wherein in step S2, the auxiliary filling device is placed on a side plate of the intermediate bulk container, and the filling port of the liner bag is fixedly installed to the auxiliary filling device.

24. The liquid filling method as claimed in claim 22, wherein the intermediate bulk container is further provided with a discharge passage, the liner bag is further provided with a discharge port, and the step S2 further comprises mounting the discharge port of the liner bag to the discharge passage.

25. The liquid filling method according to claim 22, wherein in the step S2, a part of the liner bag is clamped to the auxiliary filling device.

26. The liquid filling method of claim 24, wherein in step S1, a pillow-type liner bag is employed and the liner bag is folded such that a filling port and a discharge port of the liner bag are located on the same side, a portion of each of the left and right sides of the liner bag is folded toward a side opposite to the side on which the filling port and the discharge port are provided, and a portion of each of the upper and lower sides of the liner bag is folded toward a side opposite to the side on which the filling port and the discharge port are provided and is located above the folded portion of each of the left and right sides of the liner bag.

27. The liquid filling method of claim 25, wherein in step S2, a portion of the liner bag is clamped such that the clamped portion of the liner bag moves relative to the filling mount during filling of liquid.

28. The liquid filling method according to claim 25, wherein the liner bag is a pillow-type liner bag and has a folded state and an unfolded state when not filled with liquid, in the unfolded state, the liner bag has four corners, and the clamped portions of the liner bag are two corners near the filling port, wherein in step S2, the two corners of the liner bag near the filling port are clamped to the auxiliary filling device.