Folding equipment for flexible freight bag with lining layer

Abstract

The utility model relates to the technical field of processing of flexible freight bags, in particular to folding equipment for flexible freight bags with lining layers, which is characterized in that a conveying device is matched with a conveying device to transport and flatten the flexible freight bags, and a transverse unfolding device is inserted into the flexible freight bags to unfold the interiors of the flexible freight bags. The edges of the two sides of the flexible freight bag are conveniently folded through the cooperation of the conveying device and the auxiliary device, the front portion of the flexible freight bag is opened through the cooperation of the opening device and the transverse opening device, gas is conveniently injected into the flexible freight bag, and a lining layer of the flexible freight bag expands to be fully attached to the outer layer of the flexible freight bag; local protrusions caused by excessive wrinkles of the lining layer of the container bag in the folding process are reduced, and the practicability of the device is improved; comprising a conveying device, an auxiliary device, a transverse unfolding device and an expanding device, the auxiliary device is installed on the conveying device, the transverse unfolding device is installed on the conveying device, and the expanding device is installed on the transverse unfolding device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing bag processing, in particular to a folding equipment for packing bags with inner liners. BACKGROUND

[0002] Medical composite packing bags are packaging products designed for the medical field, mainly used for storing and transporting medical waste, medicines, medical devices and other items; They have a medical antibacterial effect. Medical composite packing bags are usually composed of two or more materials, including but not limited to polyethylene, polypropylene, polyester and aluminum foil. These materials are combined together through a specific composite process to form a composite packing bag with multiple excellent properties. For packing bags with separate inner liners, the inner liner needs to be attached to the outer layer before folding to prevent excessive wrinkles in the inner liner caused by direct folding.

[0003] The prior art patent CN202123432246.0 relates to an automatic folding device for packing bag processing, which includes a movable support frame, a transmission mechanism, a movable plate, a movable shaft, a conveyor belt, a fixed frame, a workbench, a flap, and a robot. It can replace the complex manual process, speed up the folding process, and reduce labor costs.

[0004] However, the above-mentioned device does not have the ability to arrange the inner liner when processing packing bags containing an inner liner, which can cause the inner liner to not adhere to the inner layer of the packing bag during overall folding, resulting in excessive creases in the inner liner or multiple folds in the inner liner, which can cause local protrusions after overall folding, affecting subsequent use. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a folding equipment for packing bags with inner liners, which includes a conveying device, a horizontal expansion device, a folding device, and an opening device. The horizontal expansion device is inserted into the packing bag to expand the inner part of the packing bag. The folding device is used to fold the two side edges of the packing bag. The opening device is used to open the front part of the packing bag, which facilitates the inflow of gas into the packing bag and the expansion of the inner liner of the packing bag. This device can reduce the excessive wrinkles in the inner liner of the packing bag during folding and improve the practicality of the device.

[0006] The utility model discloses a folding equipment for the container bag with inner lining, which comprises a conveying device, an auxiliary device, a horizontal spreading device and an opening device.

[0007] Preferably, the conveying device comprises a rack, first conveying rollers, a conveying belt, a first speed reducer, a first motor, a lifting fixing frame, a first electric cylinder, a lifting mounting frame and lifting limiting light rods. A plurality of groups of first conveying rollers are horizontally installed on the upper part of the rack. The conveying belt is sleeved on the plurality of groups of first conveying rollers. The first speed reducer is installed on the right part of the front end face of the rack. The first motor is installed on the first speed reducer. The output end of the first speed reducer is connected with the rightmost group of first conveying rollers. A group of grooves are arranged on the middle part of the upper end face of the rack. The lifting fixing frame is connected with the grooves. The first electric cylinder is installed on the upper end face of the lifting fixing frame. The moving end of the first electric cylinder extends through the upper end face of the lifting fixing frame and is connected with the lifting mounting frame on the lower side of the lifting fixing frame. A group of lifting limiting light rods are vertically arranged in the lifting fixing frame. The two groups of lifting limiting light rods pass through the left part and the right part of the lifting mounting frame. The first motor is started to transmit power to the first conveying rollers connected with the first speed reducer through the first speed reducer to drive the first conveying rollers to rotate. The container bag is transported through the cooperation of the plurality of groups of first conveying rollers and the conveying belt. The two groups of lifting mounting frames provide installation environment for the auxiliary device and drive the auxiliary device to move up and down to adapt to container bags with different thicknesses and states. The two sides and the bottom edge of the container bag are pressed and folded through the cooperation of the conveying belt, thereby improving the practicability of the device.

[0008] Preferably, the auxiliary device comprises a speed reducer, a second conveying roller, a steel wire mesh conveying belt, an adsorption plate and a first fan, a plurality of groups of second conveying rollers are horizontally installed on the front and rear groups of lifting mounting frames, the steel wire mesh conveying belt is sleeved on the plurality of groups of second conveying rollers, a speed reducer is installed on the right part of the front lifting mounting frame, the output end of the speed reducer is connected with the rightmost group of second conveying rollers through the front lifting mounting frame, an adsorption plate is installed between the two groups of lifting mounting frames, the adsorption plate is located on the left side of the second speed reducer and between the upper and lower layers of the steel wire mesh conveying belt, a first fan is installed on the upper end face of the adsorption plate, and the input end of the first fan extends to the lower end face of the adsorption plate through the adsorption plate; the upper layer of the bulk bag is adsorbed on the lower surface of the steel wire mesh conveying belt by starting the first fan, so that the horizontal expansion device is inserted into the bulk bag, power is transmitted to the second conveying roller connected with the speed reducer by starting the speed reducer, the second conveying roller is driven to rotate, the plurality of groups of second conveying rollers cooperate with the steel wire mesh conveying belt to drive the steel wire mesh conveying belt to rotate, the conveying belt in the conveying device is driven to rotate at the same time, the bulk bag moves to the left, and the horizontal expansion device can be completely inserted into the bottom of the bulk bag; after the inner lining layer of the bulk bag is arranged, the auxiliary device is caused to fall by controlling the first electric cylinder to elongate, the lower layer of the steel wire mesh conveying belt is close to the upper layer of the conveying belt, so that the bulk bag is extruded, the edges of the two sides and the bottom of the bulk bag are folded, subsequent processing is facilitated, and the practicability of the device is improved.

[0009] Preferably, the horizontal expansion device comprises a fixing frame, a second electric cylinder, a C-shaped chassis, a second speed reducer, a second motor, a bidirectional screw rod, a horizontal movement limiting light rod, a horizontal movement platform and a main insertion plate, the left part of the upper end face of the rack is provided with a fixing frame, the fixing frame is horizontally provided with a second electric cylinder, the moving end of the second electric cylinder is directed to the right side of the fixing frame, the moving end of the second electric cylinder is connected with a C-shaped chassis, the right part of the front end face of the C-shaped chassis is provided with a second speed reducer, the second speed reducer is provided with a second motor, a group of bidirectional screw rods and a group of horizontal movement limiting light rods are respectively and horizontally installed in the C-shaped chassis, a group of horizontal movement platforms are respectively and symmetrically installed on the bidirectional screw rods, the horizontal movement platforms are connected with the bidirectional screw rods through nuts, the horizontal movement limiting light rods pass through the left parts of the two groups of horizontal movement platforms, and the right end face of the horizontal movement platform is provided with a main insertion plate; the main body of the second electric cylinder is fixed and supported through the fixing frame, the two groups of main insertion plates on the C-shaped chassis are caused to move to the right by controlling the second electric cylinder to elongate, the bag opening of the bulk bag is opened in cooperation with the auxiliary device, the two groups of main insertion plates are inserted into the bulk bag, then power is transmitted to the bidirectional screw rod through the second speed reducer by starting the second motor, the bidirectional screw rod is driven to rotate, the two groups of horizontal movement platforms are driven to move back synchronously, so that the bulk bag inside is expanded as a whole, the position of the bulk bag on the conveying belt is adjusted, and the practicability of the device is improved.

[0010] Preferably, the opening device comprises an L-shaped auxiliary plate, a third electric cylinder, a C-shaped top frame, a lifting drag rod, a limiting groove and a limiting plate, a strip-shaped groove is arranged on the upper end surface of the main plate, the lower part of the L-shaped auxiliary plate is located in the strip-shaped groove on the main plate, a group of third electric cylinders are vertically arranged on the left part of the upper end surface of the C-shaped bottom frame in front and back respectively, the C-shaped top frame is located on the upper side of the C-shaped bottom frame, the moving ends of the two groups of third electric cylinders are connected with the front part and the rear part of the lower end surface of the C-shaped top frame respectively, the lifting drag rod is horizontally arranged on the front part of the C-shaped top frame, the limiting groove is arranged on the upper part of the lifting drag rod, the upper part of the through hole of the two groups of L-shaped auxiliary plates is arranged with the limiting plate, the limiting plate can be inserted into the limiting groove on the lifting drag rod; the lifting drag rod on the C-shaped top frame is lifted by controlling the third electric cylinder to elongate, so as to drive the two groups of L-shaped auxiliary plates to rise and cooperate with the main plate to open the port of the flexible container bag into a rectangular opening, which is convenient for the air to flow into the flexible container bag, so that the inner liner part can be fully opened, the creases of the inner liner part in the subsequent folding process are reduced, the position of the L-shaped auxiliary plate is limited by the limiting groove and the limiting plate, the front part of the L-shaped auxiliary plate is prevented from rotating downward, and the practicability of the device is improved.

[0011] Preferably, the device comprises a first connecting rod and a second connecting rod, the front part and the rear part of the upper end surface of the C-shaped bottom frame are respectively provided with vertical circular grooves, the left part of the upper end surface of the main plate is provided with the second connecting rod, the left part of the lower end surface of the L-shaped auxiliary plate is provided with the circular limiting groove corresponding to the position of the second connecting rod and the second connecting rod can be inserted, the front part and the rear part of the lower end surface of the C-shaped top frame are respectively provided with a group of first connecting rods, and the two groups of first connecting rods are inserted into the circular grooves on the C-shaped bottom frame; the lifting process of the C-shaped top frame is limited by the first connecting rod and the circular groove on the C-shaped bottom frame, so that the C-shaped top frame is prevented from tilting during the lifting process to cause the collision and damage of the equipment itself, the lifting process of the L-shaped auxiliary plate is limited by the second connecting rod and the circular limiting groove on the main plate, and the stability and practicability of the device are improved.

[0012] Preferably, the device further comprises a second fan, an air duct and a rectangular air outlet, the second fan is arranged on the left part of the third electric cylinder through a support, the input end of the second fan is connected with the rectangular air outlet, the input end of the rectangular air outlet extends to the left side of the C-shaped bottom frame, the air duct is arranged on the right end surface of the support, and the output end of the second fan is connected with the air duct; the second fan is started to pressurize the external gas and then convey the gas to the air duct to be sprayed out, the gas is filled into the flexible container bag in cooperation with the opening device and the stretching device, so that the inner liner of the flexible container bag is in an inflated state, the creases of the plane of the edges of the two sides and the bottom of the flexible container bag after being folded are reduced, the whole flexible container bag is kept flat, the input end of the rectangular air outlet extends to the left side of the C-shaped bottom frame, the influence of the airflow generated when the second fan inhales on the outside of the flexible container bag is reduced, and the practicability of the device is improved.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: through the cooperation of the conveying device and the conveying device, the FIBCs are transported and flattened, the FIBCs are expanded inside through the insertion of the horizontal expansion device into the FIBCs, the cooperation of the conveying device and the auxiliary device facilitates the folding of the two side edges of the FIBCs, the front part of the FIBCs is expanded through the cooperation of the opening device and the horizontal expansion device, the gas is conveniently flushed into the FIBCs, the inner liner of the FIBCs is inflated and fully attached to the outer layer of the FIBCs, the excessive wrinkles of the inner liner of the FIBCs in the folding process are reduced, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the isometric structure schematic diagram of the utility model;

[0015] Figure 2 It is the first cross section structure schematic diagram of the utility model;

[0016] Figure 3 It is the second cross section structure schematic diagram of the utility model;

[0017] Figure 4 It is the local enlarged structure schematic diagram of the utility model;

[0018] Marked in the drawing: 1, rack; 2, first conveying roller; 3, conveying belt; 4, first speed reducer; 5, first motor; 6, lifting fixing frame; 7, first electric cylinder; 8, lifting mounting frame; 9, lifting limit light pole; 10, speed reducer motor; 11, second conveying roller; 12, steel wire mesh conveying belt; 13, adsorption plate; 14, first fan; 15, fixed frame; 16, second electric cylinder; 17, C-shaped bottom frame; 18, second speed reducer; 19, second motor; 20, bidirectional screw; 21, transverse movement limit light pole; 22, transverse movement platform; 23, main plug-in plate; 24, third electric cylinder; 25, C-shaped top frame; 26, lifting drag link; 27, limit slot; 28, limit plug-in plate; 29, first connecting rod; 30, second connecting rod; 31, second fan; 32, air guide pipe; 33, rectangular air outlet; 34, L-shaped auxiliary plug-in plate. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. EMBODIMENT

[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4The auxiliary device is installed on the conveying device, the lateral spreading device is installed on the conveying device, and the opening device is installed on the lateral spreading device;

[0021] First, the first motor 5 is started to transmit power to the first conveying roller 2 connected through the first speed reducer 4 to drive the first conveying roller 2 to rotate. The FPC bag is transported through the cooperation of the plurality of first conveying rollers 2 and the conveying belt 3. When the FPC bag moves to the lower side of the steel wire mesh conveying belt 12, the C-shaped chassis 17 is controlled to extend to make the lower end face of the steel wire mesh conveying belt 12 close to the FPC bag. Then, the first fan 14 is started to adsorb the upper layer of the FPC bag on the lower surface of the steel wire mesh conveying belt 12 to make the front end port of the FPC bag open. Then, the second electric cylinder 16 is controlled to extend to drive the two groups of main insertion plates 23 on the C-shaped chassis 17 to move to the right, and the auxiliary device is used to open the bag port of the FPC bag. The two groups of main insertion plates 23 are inserted into the FPC bag. Then, the second motor 19 is started to transmit power to the bidirectional screw rod 20 connected through the second speed reducer 18 to drive the bidirectional screw rod 20 to rotate. The rotating bidirectional screw rod 20 drives the two groups of transverse moving platforms 22 to move synchronously in the opposite direction, so as to open the FPC bag inside as a whole. Then, the third electric cylinder 24 is controlled to extend to drive the lifting support rod 26 on the C-shaped top frame 25 to rise, so as to drive the two groups of L-shaped auxiliary insertion plates 34 to rise and cooperate with the main insertion plates 23 to open the port of the FPC bag to a rectangular port. Then, the second fan 31 is started to compress the external gas and deliver it to the air guide pipe 32 to be sprayed out. The gas is filled into the FPC bag through the cooperation of the lateral spreading device and the opening device, so that the FPC bag lining is in an inflated state. Then, the third electric cylinder 24 is controlled to retract to make the L-shaped auxiliary insertion plate 34 fall, and the two groups of main insertion plates 23 are controlled to continue to separate. Then, the second electric cylinder 16 is controlled to retract to make the main insertion plate 23 drawn out of the FPC bag. Finally, the first electric cylinder 7 is controlled to extend to drive the steel wire mesh conveying belt 12 to press down and cooperate with the conveying belt 3 to extrude and fold the edges of the two sides and the bottom of the FPC bag.

[0022] The conveying device comprises a rack 1, a first conveying roller 2, a conveying belt 3, a first speed reducer 4, a first motor 5, a lifting fixed frame 6, a first electric cylinder 7, a lifting mounting frame 8 and a lifting limiting light rod 9. A plurality of first conveying rollers 2 are horizontally installed on the upper part of the rack 1. The conveying belt 3 is sleeved on the plurality of first conveying rollers 2. The first speed reducer 4 is installed on the right part of the front end face of the rack 1. The first motor 5 is installed on the first speed reducer 4. The output end of the first speed reducer 4 is connected with the rightmost first conveying roller 2. A group of recesses are respectively arranged on the middle part of the upper end face of the rack 1. The lifting fixed frame 6 is connected with the recess. The first electric cylinder 7 is installed on the upper end face of the lifting fixed frame 6. The moving end of the first electric cylinder 7 extends to the lower side of the lifting fixed frame 6 through the upper end face of the lifting fixed frame 6 and is connected with the lifting mounting frame 8. A group of lifting limiting light rods 9 are respectively vertically arranged in the lifting fixed frame 6. The two groups of lifting limiting light rods 9 respectively pass through the left part and the right part of the lifting mounting frame 8.

[0023] The auxiliary device comprises a reduction motor 10, a second conveying roller 11, a wire mesh conveying belt 12, an adsorption plate 13 and a first fan 14, a plurality of groups of second conveying rollers 11 are horizontally installed on the front and rear groups of lifting mounting frames 8, the wire mesh conveying belt 12 is sleeved on the plurality of groups of second conveying rollers 11, the right part of the front lifting mounting frame 8 is provided with the reduction motor 10, the output end of the reduction motor 10 penetrates through the front lifting mounting frame 8 and is connected with the rightmost group of second conveying rollers 11, the adsorption plate 13 is installed between the two groups of lifting mounting frames 8, is located on the left side of the second reduction motor 18 and is between the upper and lower layers of the wire mesh conveying belt 12, the first fan 14 is installed on the upper end face of the adsorption plate 13, and the input end of the first fan 14 extends to the lower end face of the adsorption plate 13 through the adsorption plate 13;

[0024] The horizontal expansion device comprises a fixing frame 15, a second electric cylinder 16, a C-shaped bottom frame 17, a second reduction motor 18, a second motor 19, a bidirectional screw rod 20, a horizontal movement limiting light rod 21, a horizontal movement platform 22 and a main plug plate 23, the left part of the upper end face of the rack 1 is provided with the fixing frame 15, the second electric cylinder 16 is horizontally installed on the fixing frame 15, the moving end of the second electric cylinder 16 points to the right side of the fixing frame 15, the moving end of the second electric cylinder 16 is connected with the C-shaped bottom frame 17, the right part of the front end face of the C-shaped bottom frame 17 is provided with the second reduction motor 18, the second motor 19 is installed on the second reduction motor 18, a group of bidirectional screw rods 20 and a group of horizontal movement limiting light rods 21 are respectively and horizontally installed in the C-shaped bottom frame 17, a group of horizontal movement platforms 22 are respectively and symmetrically installed on the bidirectional screw rod 20, the horizontal movement platform 22 is connected with the bidirectional screw rod 20 through a nut, the horizontal movement limiting light rod 21 penetrates through the left part of the two groups of horizontal movement platforms 22, and the right end face of the horizontal movement platform 22 is provided with the main plug plate 23;

[0025] The opening device comprises an L-shaped auxiliary plug plate 34, a third electric cylinder 24, a C-shaped top frame 25, a lifting drag rod 26, a limiting groove 27 and a limiting plug plate 28, a strip-shaped groove is arranged on the upper end face of the main plug plate 23, the lower part of the L-shaped auxiliary plug plate 34 is located in the strip-shaped groove on the main plug plate 23, a group of third electric cylinders 24 are vertically installed on the left part of the upper end face of the C-shaped bottom frame 17, the C-shaped top frame 25 is located on the upper side of the C-shaped bottom frame 17, the moving ends of the two groups of third electric cylinders 24 are respectively connected with the front part and the rear part of the lower end face of the C-shaped top frame 25, the lifting drag rod 26 is horizontally installed on the front part of the C-shaped top frame 25, the upper part of the lifting drag rod 26 is provided with the limiting groove 27, the upper parts of the two groups of L-shaped auxiliary plug plates 34 are provided with through holes, the lifting drag rod 26 penetrates through the through holes in the upper parts of the two groups of L-shaped auxiliary plug plates 34, and the limiting plug plate 28 is arranged in the through hole of the L-shaped auxiliary plug plate 34 and can be inserted into the limiting groove 27 on the lifting drag rod 26;

[0026] The upper end face front part and the rear part of the C-shaped bottom frame 17 are respectively provided with vertical circular grooves, the upper end face left part of the main plug plate 23 is provided with the second connecting rod 30, the lower end face left part of the L-shaped auxiliary plug plate 34 is provided with a circular limiting groove corresponding to the position of the second connecting rod 30 and the second connecting rod 30 can be inserted, and the lower end face front part and the rear part of the C-shaped top frame 25 are respectively provided with a group of first connecting rods 29, and the two groups of first connecting rods 29 are respectively inserted into the circular grooves on the C-shaped bottom frame 17.

[0027] The second fan 31, the air guide pipe 32 and the rectangular air outlet 33 are further included, the left part in the third electric cylinder 24 is provided with the second fan 31 through a support, the input end of the second fan 31 is connected with the rectangular air outlet 33, the input end of the rectangular air outlet 33 extends to the left side of the C-shaped bottom frame 17, the right end face of the support is provided with the air guide pipe 32, and the output end of the second fan 31 is connected with the air guide pipe 32.

[0028] The bag is transported and flattened by the conveying device, the inside of the bag is expanded by the horizontal expansion device inserted into the bag, the two side edges of the bag are folded by the conveying device and the auxiliary device, the front part of the bag is opened by the opening device cooperating with the horizontal expansion device, the gas is conveniently injected into the bag, the inner liner of the bag is expanded and fully attached to the outer layer of the bag, the local protrusion caused by too many wrinkles of the inner liner of the bag in the folding process is reduced, and the practicability of the device is improved.

[0029] As Figures 1 to 4As shown, the folding equipment for the container bag with the inner lining layer, when working, first opens the first motor 5 to transmit power to the first transmission roller 2 connected through the first speed reducer 4 to drive the first transmission roller 2 to rotate, and transports the container bag through the cooperation of the multiple groups of first transmission rollers 2 and the conveying belt 3, controls the C-shaped chassis 17 to extend to make the lower end surface of the steel wire mesh conveying belt 12 close to the container bag after the container bag moves to the lower side of the steel wire mesh conveying belt 12, then opens the first fan 14 to adsorb the upper layer of the container bag on the lower surface of the steel wire mesh conveying belt 12 to make the front end port of the container bag open, then controls the second electric cylinder 16 to extend to drive the two groups of main insertion plates 23 on the C-shaped chassis 17 to move to the right, and cooperates with the auxiliary device to make the bag port of the container bag open, the two groups of main insertion plates 23 are inserted into the container bag, then opens the second motor 19 to transmit power to the bidirectional screw rod 20 through the second speed reducer 18 to drive the bidirectional screw rod 20 to rotate, the rotating bidirectional screw rod 20 drives the two groups of transverse moving platforms 22 to move synchronously in the opposite direction, so that the container bag inside is expanded as a whole, then controls the third electric cylinder 24 to extend to drive the lifting support rod 26 on the C-shaped top bracket 25 to rise, so as to drive the two groups of L-shaped auxiliary insertion plates 34 to rise and cooperate with the main insertion plates 23 to open the port of the container bag to a rectangular port, then opens the second fan 31 to pressurize the external gas and then sends it to the air duct 32 to be sprayed out, cooperates with the horizontal expansion device and the opening device to fill the gas into the container bag, so that the inner lining of the container bag is in an inflated state, then controls the third electric cylinder 24 to retract to make the L-shaped auxiliary insertion plate 34 fall, and controls the two groups of main insertion plates 23 to continue to separate, then controls the second electric cylinder 16 to retract to make the main insertion plate 23 extracted from the container bag, and finally controls the first electric cylinder 7 to extend to drive the steel wire mesh conveying belt 12 to press and fold the edges of the two sides and the bottom of the container bag in cooperation with the conveying belt 3.

[0030] The first electric cylinder 7, the second fan 31, the speed reducer motor 10, the first speed reducer 4, the first motor 5, the first fan 14, the second speed reducer 18, the second motor 19 and the third electric cylinder 24 of the folding equipment for the container bag with the inner lining layer are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0031] The preferred embodiments of the utility model are described above, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the technical principle of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection range of the utility model.

Claims

1. A folding apparatus for a flexible intermediate bulk container having an inner liner; characterized by, The utility model provides a kind of auxiliary device, including conveying device, auxiliary device, lateral expansion device and opening device, auxiliary device is installed on conveying device, lateral expansion device is installed on conveying device, opening device is installed on lateral expansion device;Lateral expansion device includes fixed frame (15), second electric cylinder (16), C-shaped chassis (17), second speed reducer (18), second motor (19), bidirectional screw rod (20), horizontal movement limiting light rod (21), horizontal movement platform (22) and main plug-in plate (23), the upper end face left part of rack (1) is equipped with fixed frame (15), fixed frame (15) is equipped with second electric cylinder (16) horizontally, the moving end of second electric cylinder (16) is directed to the right side of fixed frame (15), the moving end of second electric cylinder (16) is connected with C-shaped chassis (17), the right part of the front end face of C-shaped chassis (17) is equipped with second speed reducer (18), second speed reducer (18) is equipped with second motor (19), C-shaped chassis (17) is equipped with a group of bidirectional screw rod (20) and a group of horizontal movement limiting light rod (21) respectively parallel in left and right, a group of horizontal movement platform (22) is respectively symmetrically installed on bidirectional screw rod (20) front and back, horizontal movement platform (22) is connected with bidirectional screw rod (20) by nut, horizontal movement limiting light rod (21) passes through the left part of two groups of horizontal movement platform (22), and the right end surface of horizontal movement platform (22) is equipped with main plug-in plate (23);Opening device includes L-shaped auxiliary plug-in plate (34), third electric cylinder (24), C-shaped top frame (25), lifting drag rod (26), limiting slot (27) and limiting plug-in plate (28), the upper end face of main plug-in plate (23) is provided with strip slot, the lower part of L-shaped auxiliary plug-in plate (34) is in the strip slot on main plug-in plate (23), the upper end face left part of C-shaped chassis (17) is vertically installed with a group of third electric cylinder (24) respectively front and back, C-shaped top frame (25) is located on the upside of C-shaped chassis (17), the moving end of two groups of third electric cylinder (24) is connected with the lower end face front and rear of C-shaped top frame (25) respectively, the front of C-shaped top frame (25) is equipped with lifting drag rod (26) horizontally, the upper part of lifting drag rod (26) is provided with limiting slot (27), the upper part of two groups of L-shaped auxiliary plug-in plate (34) is provided with through hole, lifting drag rod (26) passes through the through hole of the upper part of two groups of L-shaped auxiliary plug-in plate (34), limiting plug-in plate (28) is provided in the through hole of L-shaped auxiliary plug-in plate (34) upper part, limiting plug-in plate (28) can be inserted into the limiting slot (27) on lifting drag rod (26).

2. A folding apparatus for a bag with an inner liner as claimed in claim 1, characterized in that, The conveying device comprises a rack (1), first conveying rollers (2), a conveying belt (3), a first speed reducer (4), a first motor (5), a lifting fixing frame (6), a first electric cylinder (7), a lifting mounting frame (8) and lifting limiting light rods (9), a plurality of groups of first conveying rollers (2) are horizontally installed on the upper portion of the rack (1), the conveying belt (3) is sleeved on the plurality of groups of first conveying rollers (2), a first speed reducer (4) is installed on the right portion of the front end face of the rack (1), a first motor (5) is installed on the first speed reducer (4), the output end of the first speed reducer (4) is connected with the rightmost group of first conveying rollers (2), a group of grooves are arranged on the middle portion of the upper end face of the rack (1) and are arranged on the front and back respectively, the lifting fixing frame (6) is connected on the grooves, a first electric cylinder (7) is installed on the upper end face of the lifting fixing frame (6), the moving end of the first electric cylinder (7) extends to the downside of the lifting fixing frame (6) through the upper end face of the lifting fixing frame (6) and is connected with the lifting mounting frame (8), a group of lifting limiting light rods (9) are vertically arranged in the lifting fixing frame (6) and are arranged on the left and right respectively, and the two groups of lifting limiting light rods (9) pass through the left portion and the right portion of the lifting mounting frame (8) respectively.

3. A folding apparatus for a bag-in-box container as defined in claim 2, wherein The auxiliary device comprises a speed reduction motor (10), second conveying rollers (11), a steel wire mesh conveying belt (12), an adsorption plate (13) and a first fan (14), a plurality of groups of second conveying rollers (11) are horizontally installed on the two groups of lifting mounting frames (8), the steel wire mesh conveying belt (12) is sleeved on the plurality of groups of second conveying rollers (11), a speed reduction motor (10) is installed on the right portion of the front side lifting mounting frame (8), the output end of the speed reduction motor (10) passes through the front side lifting mounting frame (8) and is connected with the rightmost group of second conveying rollers (11), the adsorption plate (13) is installed between the two groups of lifting mounting frames (8), the adsorption plate (13) is located on the left side of the second speed reducer (18) and is between the upper and lower layers of the steel wire mesh conveying belt (12), a first fan (14) is installed on the upper end face of the adsorption plate (13), and the input end of the first fan (14) extends to the lower end face of the adsorption plate (13) through the adsorption plate (13).

4. A folding apparatus for a bag with an inner liner as claimed in claim 3, wherein, The first connecting rod (29) and the second connecting rod (30) are arranged, vertical circular grooves are arranged on the front portion and the rear portion of the upper end face of the C-shaped bottom frame (17), the second connecting rod (30) is arranged on the left portion of the upper end face of the main plug-in plate (23), a circular limiting groove is arranged on the left portion of the lower end face of the L-shaped auxiliary plug-in plate (34) and the second connecting rod (30) can be inserted, and a group of first connecting rods (29) are arranged on the front portion and the rear portion of the lower end face of the C-shaped top frame (25) respectively, and the two groups of first connecting rods (29) are inserted into the circular grooves on the C-shaped bottom frame (17) respectively.

5. A folding apparatus for a bag having an inner liner as claimed in claim 4, wherein, Also include the second fan (31), air duct (32) and rectangular air outlet (33), the third electric cylinder (24) left part is installed through the support second fan (31), the input end of second fan (31) is connected with rectangular air outlet (33), the input end of rectangular air outlet (33) extends to the left side of C-shaped chassis (17), the right end face of support is installed air duct (32), the output end of second fan (31) is connected with air duct (32).

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