An automatic bagging and sealing production line for bulk material packets

Abstract

The invention discloses an automatic bagging and sealing production line for block material packages, comprising a frame, a bag supply device for plastic packaging bags, a block material package conveying device, a rotary transposition device, a package pushing device, a hot melt sealing device and a control device are installed on the frame; the rotary transposition device comprises a transposition motor, a rotating shaft, and a seat plate, the middle part of the seat plate is sleeved on the rotating shaft and forms a fixed connection, both sides of the seat plate are provided with a clearance gap, and the seat plate is provided with a group of bag support components near each clearance gap; the transposition motor drives the rotating shaft and the seat plate to rotate so that each group of bag support components is switched between a bag loading position and a packaging position, so that one group of bag support components loads the bag, and the other group of bag support components cooperates with the package pushing device to load the bag; the hot melt sealing device receives the plastic packaging bag containing the block material package pushed by the package pushing device and performs shaping and hot melt sealing on the bag mouth of the plastic packaging bag. The invention realizes automatic bagging and sealing of block material packages, has a high degree of automation, improves packaging efficiency, and reduces packaging costs.

Description

Technical Field

[0001] The invention relates to the technical field of packaging equipment manufacturing, in particular to an automatic bagging and sealing production line for block material packages. Background Art

[0002] Nowadays, in order to avoid environmental pollution and prolong the shelf life, some granular materials such as rice and beans are first vacuum-packed to form block bags, and then covered with plastic bags with handles for easy transportation and sales. The traditional operation method of bagging and sealing block bags is done manually with simple tools. Generally, two people are required to cooperate in bagging. One person opens the bag mouth of the plastic bag, and the other person packs the bag. Then, the bag mouth of the plastic bag is shaped and hot-melt sealed with the existing sealing device. Therefore, the packaging efficiency is low, the labor intensity of the operator is high, and the packaging cost is high. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic bagging and sealing production line for block material packages, which realizes automatic bagging and sealing of block material packages, has a high degree of automation, effectively improves packaging efficiency, and reduces packaging costs.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present invention is: an automatic bagging and sealing production line for block material packages, including a frame, characterized in that: a bag supply device for plastic packaging bags with handle rings, a block material package conveying device, a rotating transposition device, a package pushing device, a hot melt sealing device and a control device are installed on the frame; the rotating transposition device includes a transposition motor, a rotating shaft, and a seat plate, the transposition motor drives the rotating shaft to rotate, the middle part of the seat plate is sleeved on the rotating shaft and is fixedly connected, both sides of the seat plate are provided with a clearance notch, and the seat plate is provided with a group of bag support components near each clearance notch, each group of bag support components includes two bag support plates and a driving device for moving the two bag support plates The driving unit drives the rotating shaft and the seat plate to rotate through the transposition motor so that each bag support assembly is switched between the bag loading position and the packing position. When the bag support assembly is in the bag loading position, the driving unit first drives the two bag support plates to move closer to each other, and the bag supply device inserts the bag mouth of the plastic packaging bag into the two bag support plates at the bag loading position. The driving unit then drives the two bag support plates to move away from each other to support the bag mouth of the packaging bag to complete the bag loading action. When the switching position of the bag support assembly supporting the bag mouth of the plastic packaging bag is in the packing position, the bag pushing device pushes the block material bag into the plastic packaging bag and then continues to push the block material bag and the plastic packaging bag together to the hot melt sealing device.

[0005] The hot-melt sealing device receives the plastic packaging bag containing the block-shaped material bag pushed by the package pushing device and performs shaping and hot-melt sealing on the bag opening of the plastic packaging bag; the control device coordinates and controls the operation of various moving parts.

[0006] Preferably, the driving unit includes two bag-supporting cylinders arranged oppositely on the seat plate and a set of control valves. An air intake switching cylinder and a deflation switching cylinder are installed on the frame. Each bag-supporting plate is fixedly connected to the piston rod of a bag-supporting cylinder. The two bag-supporting plates on each set of bag-supporting assemblies are parallel to each other; each set of control valves includes an air intake reversing valve and a deflation valve. An air intake passage is provided at the center of the rotating shaft. The air intake port of each air intake reversing valve is connected to the air intake passage through a pipeline. Each air intake reversing valve is also connected to the air ports of the two bag-supporting cylinders on the driving unit through an air pipe. Each deflation valve is also connected to the air ports of the two bag-supporting cylinders on the driving unit through an air pipe;

[0007] When the bag-supporting assembly is in the bag-loading position, the piston rod of the air intake switching cylinder extends to trigger the action of the air intake reversing valve, causing the piston rods of the two bag-supporting cylinders of the driving unit in the bag-loading position to extend, driving the two bag-supporting plates to move closer to each other. After the bag mouth of the plastic packaging bag is sleeved, the piston rod of the air intake switching cylinder retracts, the air intake reversing valve resets, and the piston rods of the two bag-supporting cylinders in the bag-loading position retract, driving the two bag-supporting plates to move away from each other to hold the bag mouth of the plastic packaging bag and complete the bag-loading action;

[0008] When the bag-supporting assembly holding the bag mouth of the plastic packaging bag is in the bag-packing position, after the pushing device pushes the block-shaped material bag into the packaging bag, the piston rod of the deflation switching cylinder extends to trigger the deflation valve to deflate, causing the two bag-supporting cylinders at the bag-packing position to deflate simultaneously. Then the pushing device continues to push the block-shaped material bag and the plastic packaging bag away from the two bag-supporting plates and then pushes them to the hot melt sealing device. This can facilitate driving the two bag-supporting plates to move towards each other, and is easy to control, improving the bag-loading and pushing efficiency.

[0009] Preferably, the hot melt sealing device includes a supporting mechanism for positioning the plastic packaging bag containing the block-shaped material bag and a clamping, shaping and sealing mechanism. The supporting mechanism includes a backing plate for positioning the thickness direction of the plastic packaging bag and a support frame for positioning the height direction of the plastic packaging bag. The clamping, shaping and sealing mechanism is located above the supporting mechanism. The clamping, shaping and sealing mechanism includes a seat body, a left swing arm, a right swing arm, a left clamping block, a right clamping block, a left shaping plate, a right shaping plate, a left push rod, a right push rod, a left sealing block and a right sealing block. The upper parts of the left swing arm and the right swing arm are pivotally connected to the seat body. The left clamping block is hinged to the lower part of the left swing arm. The right clamping block is hinged to the lower part of the right swing arm. The upper ends of the left push rod and the right push rod are hinged to a pressing block. The left push rod passes through the left clamping block, and the lower end of the left push rod is fixedly connected to the left shaping plate. The right push rod passes through the right clamping block, and the lower end of the right push rod is fixedly connected to the right shaping plate;

[0010] The seat body is equipped with a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism drives the left swing arm and the right swing arm to close towards each other or separate from each other. The left push rod and the right push rod are also driven to close towards each other or separate from each other through the left clamping block and the right clamping block; the second driving mechanism drives the pressing block to move up and down, and the third driving mechanism drives the left sealing block and the right sealing block to move closer to each other or separate from each other;

[0011] When the left swing arm and the right swing arm close towards each other, the left push rod and the right push rod also close towards each other, and the left clamping block and the right clamping block clamp both sides of the end of the bag mouth of the plastic packaging bag; the second driving mechanism drives the pressing block to move downward, the pressing block drives the left push rod and the right push rod to press down, and the left shaping plate and the right shaping plate shape the two sides of the bag mouth of the plastic packaging bag into a sealing plane. When the left sealing block and the right sealing block approach each other, the left sealing block is inserted between the left clamping block and the left shaping plate, and the right sealing block is inserted between the right clamping block and the right shaping plate. The left sealing block and the right sealing block clamp the two sides of the sealing plane of the bag mouth of the plastic packaging bag for hot melt sealing.

[0012] This hot melt sealing device realizes automatic shaping and sealing of the bag mouth of the plastic packaging bag in a vertical state, effectively reducing the labor intensity of operators, improving production efficiency, and ensuring the sealing quality.

[0013] Further preferably, the first driving mechanism includes a first air cylinder, a left gear and a right gear. The upper part of the left swing arm is fixedly connected with the left gear and is pivotally connected to the seat body through the left gear. The upper part of the right swing arm is fixedly connected with the right gear and is pivotally connected to the seat body through the right gear. The left gear and the right gear mesh with each other. The housing of the first air cylinder is hinged to the seat body, and the piston rod of the first air cylinder is hinged to one side of the left swing arm or the right swing arm through a connecting piece; when the piston rod of the first air cylinder is hinged to one side of the left swing arm through a connecting piece, the piston rod of the first air cylinder drives the left swing arm and drives the left swing arm and the right swing arm to close towards each other or separate from each other through the meshing of the left gear and the right gear; when the piston rod of the first air cylinder is hinged to one side of the right swing arm through a connecting piece, the piston rod of the first air cylinder drives the right swing arm and drives the left swing arm and the right swing arm to close towards each other or separate from each other through the meshing of the left gear and the right gear;

[0014] The second driving mechanism includes a second air cylinder, the housing of the second air cylinder is fixed on the seat body, and the piston rod of the second air cylinder is fixedly connected with the pressing block; the third driving mechanism includes a left third air cylinder and a right third air cylinder. The housing of the left third air cylinder is fixedly connected with the seat body, the piston rod of the left third air cylinder is fixedly connected with the left sealing block through a left connecting piece, the housing of the right third air cylinder is fixedly connected with the seat body, and the piston rod of the right third air cylinder is fixedly connected with the right sealing block through a right connecting piece;

[0015] There is a fourth air cylinder beside the supporting mechanism. The piston rod of the fourth air cylinder is connected with a top block. The piston rod of the fourth air cylinder drives the top block to press the plastic packaging bag containing the block material package against the backing plate of the supporting mechanism along its thickness direction. After the left clamping block and the right clamping block clamp both sides of the end of the bag mouth of the plastic packaging bag, the piston rod of the fourth air cylinder drives the top block to retreat; the support frame on the supporting mechanism is fixedly connected to the backing plate and can be adjusted in position relative to the backing plate;

[0016] There are multiple sets of the supporting mechanisms. Each set of the supporting mechanisms is fixedly connected to a rotating shaft at intervals through a backing plate. The rotating shaft is driven by a fourth driving mechanism to rotate intermittently, so that different supporting mechanisms can rotate to the sealing position in turn.

[0017] For further improvement, the seat body is installed on a supporting seat. An adjusting screw is installed on the supporting seat. One end of the adjusting screw is connected to the seat body. Rotating the adjusting screw can move the seat body left and right, and its moving direction is parallel to the moving direction of the left sealing block. When the seat body is not moving, the seat body and the supporting seat are fixedly connected through a locking mechanism.

[0018] Both sides of the lower part of the supporting seat are mounted on two guide rails. The supporting seat is connected to a fifth driving mechanism, and the fifth driving mechanism drives the supporting seat to move back and forth. In this way, by adjusting the position of the seat body, the position of the sealing surface can be changed to adapt to the sealing requirements of plastic packaging bags containing block-shaped material packages with different thickness specifications, further improving the versatility. The fifth driving mechanism can drive the entire clamping, shaping and sealing mechanism to shift. The clamping, shaping and sealing mechanism can clamp the plastic packaging bag and shift it, and can shift while sealing, which can further improve the sealing efficiency.

[0019] Preferably, there are two left push rods and two right push rods. The upper ends of the two left push rods are respectively hinged on both sides of the pressing block. The upper ends of the two right push rods are respectively hinged on both sides of the pressing block. The two left push rods both pass through the left clamping block, and the left shaping plate is fixedly connected to the two left push rods. The two right push rods both pass through the right clamping block, and the right shaping plate is fixedly connected to the two right push rods.

[0020] A front driving mechanism and a rear driving mechanism are also installed on the seat body. The front driving mechanism drives the side of the bag mouth of the plastic packaging bag to sink towards the middle, and the rear driving mechanism drives the side of the other side of the bag mouth of the plastic packaging bag to sink towards the middle.

[0021] The front driving mechanism includes a front bracket fixedly connected to the front side of the seat body. The front bracket is equipped with a front air blowing head, and the front air blowing head blows air towards the side of the bag mouth of the plastic packaging bag. The rear driving mechanism includes a rear bracket fixedly connected to the front side of the seat body. The rear bracket is equipped with a rear air blowing head, and the rear air blowing head blows air towards the side of the other side of the bag mouth of the plastic packaging bag. Or the front driving mechanism includes a front bracket fixedly connected to the front side of the seat body. The front bracket is equipped with a front air cylinder, and the front air cylinder drives a front driving rod to drive the side of the bag mouth of the plastic packaging bag to sink towards the middle. The rear driving mechanism includes a rear bracket fixedly connected to the rear side of the seat body. The rear bracket is equipped with a rear air cylinder, and the rear air cylinder drives a rear driving rod to drive the side of the other side of the bag mouth of the plastic packaging bag to sink towards the middle. This can further ensure that both sides of the plastic packaging bag are folded towards the middle, further ensuring the sealing quality.

[0022] Preferably, the package pushing device includes a main transmission wheel and a slave transmission wheel mounted on a frame, the main transmission wheel and the slave transmission wheel are connected by a synchronous belt, the main transmission wheel is driven by a package pushing motor, and a pushing member is fixedly connected to the synchronous belt. After the pushing member pushes the block material package into the plastic packaging bag, it continues to push the block material package and the plastic packaging bag together to the hot melt sealing device.

[0023] Preferably, the block material package conveying device comprises a conveyor belt, and the frame is provided with a guiding assembly above the conveyor belt near the package pushing device, and the guiding assembly adjusts the position of the block material package so that the package pushing device can reliably push the block material package into the plastic packaging bag;

[0024] The guiding assembly includes a guiding upper cylinder and a double-head guiding cylinder, the piston rod of the guiding upper cylinder is arranged downward and fixedly connected to the housing of the double-head guiding cylinder, the two piston rods of the double-head guiding cylinder are fixedly connected to a guiding clamping plate, the two piston rods of the double-head guiding cylinder are contracted at the same time so that the two guiding clamping plates clamp the block material package to the guiding position of the block material package, so as to further ensure the reliability of the package pushing device.

[0025] Preferably, the bag supply device includes a bag hanging mechanism, a bag pushing mechanism, a bag sucking mechanism, a bag clamping mechanism, a bag feeding mechanism, a bag opening mechanism and a bag moving mechanism; the bag hanging mechanism includes a plurality of bag hanging brackets arranged horizontally and suspended at one end, each bag hanging bracket can be shifted to at least a bag supply position or a bag hanging position following the moving component, and plastic packaging bags with handle rings can be closely mounted on the bag hanging brackets one by one using the handle rings, and a blocking portion is provided at one suspended end of each bag hanging bracket to prevent the packaging bags from falling; the bag pushing mechanism is arranged next to the bag hanging bracket at the bag supply position, and the bag pushing mechanism pushes the plastic packaging bag on the bag hanging bracket so that the bag sucking mechanism can suck the plastic packaging bag; the bag sucking machine The bag feeding device is provided to suck the plastic packaging bag and then drive the plastic packaging bag to pass the blocking part so that the plastic packaging bag is separated from the bag hanging bracket; the bag clamping mechanism clamps the plastic packaging bag sucked by the bag suction mechanism and makes the plastic packaging bag in a vertical state; the bag feeding mechanism drives the plastic packaging bag released by the bag clamping mechanism and makes the plastic packaging bag move in the horizontal direction; the bag opening mechanism is arranged at the discharge end of the bag feeding mechanism, and the bag opening mechanism opens the bag mouth of the plastic packaging bag; the bag moving mechanism is arranged beside the bag opening mechanism, and the bag moving mechanism supports the bag mouth of the plastic packaging bag and then moves the plastic packaging bag to put the bag mouth of the plastic packaging bag into the two bag support plates of the bag support assembly at the upper bag position. The automation level can be further improved by the above-mentioned bag supply device.

[0026] Preferably, the bag pushing mechanism includes a screw rod parallel to the bag hanging bracket, the screw rod is driven to rotate by a bag pushing motor, a nut is matched on the screw rod, the nut is fixedly connected to a bracket, a vertically arranged cylinder is provided on the bracket, a piston rod of the cylinder is fixedly connected to a push plate, a pushing surface of the push plate is perpendicular to the bag hanging bracket, and a notch is provided at the bottom of the push plate to make way for the bag hanging bracket; when the cylinder drives the push plate to move downward, the push plate can follow the nut to move and push the plastic packaging bag on the bag hanging bracket, and when the cylinder drives the push plate to move upward to make way, the bag hanging bracket can move and switch positions;

[0027] The bag suction mechanism comprises a first horizontal cylinder fixedly connected to the frame, a piston rod of the first horizontal cylinder fixedly connected to a mounting seat, a first vertical cylinder fixedly connected to the mounting seat, a suction cup frame fixedly connected to the piston rod of the first vertical cylinder, a bag-taking suction cup mounted on the suction cup frame, the bag-taking suction cup moves forward in a horizontal direction under the drive of the first horizontal cylinder to suck the plastic packaging bag in a suspended state, then the bag-taking suction cup sucks the plastic packaging bag and moves upward under the drive of the first vertical cylinder, then the bag-taking suction cup sucks the plastic packaging bag and is driven by the first horizontal cylinder to move backward so that the plastic packaging bag passes over the blocking portion and leaves the bag hanging bracket;

[0028] The bag clamping mechanism comprises a second horizontal cylinder and a finger cylinder, the second horizontal cylinder housing is fixedly connected to the frame, the piston rod of the second horizontal cylinder is fixedly connected to the finger cylinder through a mounting member, the finger cylinder is vertically arranged with the fingers facing downward, and a clamping block is fixedly connected to the fingers of the finger cylinder;

[0029] The bag feeding mechanism comprises two bag feeding chains which are parallel and circulate at the same time, and a conveyor belt is connected between the two bag feeding chains at intervals, and the conveyor belt drives the plastic packaging bags released by the bag clamping mechanism and moves the plastic packaging bags in the horizontal direction; each bag feeding chain is connected to a bag feeding driving sprocket and three bag feeding driven sprockets to form a square arrangement structure, and the side surface of each bag feeding chain is perpendicular to the horizontal plane, and the upper end surface formed by the two bag feeding chains is parallel to the horizontal plane, and the upper end surface formed by the two bag feeding chains is away from the bag hanging bracket. The side is the bag outlet end, and the bag feeding driving sprocket is rotated by the bag feeding motor;

[0030] The bag opening mechanism comprises a bag blocking cylinder, a bag blocking frame, a lower bag opening suction cup, a vertical bag opening cylinder and an upper bag opening suction cup, the bag blocking cylinder is vertically arranged at the bag outlet end of the bag feeding mechanism, the piston rod of the bag blocking cylinder is vertically arranged and fixedly connected to the bag blocking frame, the bag blocking frame blocks the bag when it moves upward, and does not block the bag when it is reset downward; the lower bag opening suction cup is arranged beside the bag blocking frame, the piston rod of the vertical bag opening cylinder is downwardly arranged and fixedly connected to a bag opening bracket, and the upper bag opening suction cup is mounted on the bag opening bracket, after the plastic packaging bag is transported by the bag feeding mechanism and blocked by the bag blocking bracket, the vertical bag opening cylinder drives the upper bag opening suction cup to move downward and respectively suck two sides of the plastic packaging bag with the lower bag opening suction cup, and then the vertical bag opening cylinder drives the upper bag opening suction cup to move upward and reset, and the upper bag opening suction cup and the lower bag opening suction cup open the bag mouth of the plastic packaging bag;

[0031] The bag transferring mechanism includes a bag transferring support and a bag transferring driving mechanism. The bag transferring driving mechanism drives the bag transferring support to move back and forth along the moving direction of the plastic packaging bag. Two synchronous belt pulleys are installed on the bag transferring support, and the two synchronous belt pulleys are connected by a synchronous belt. The axial directions of the two synchronous belt pulleys are parallel to the moving direction of the plastic packaging bag. An upper connecting piece is fixedly connected to the upper side of the synchronous belt, and a lower connecting piece is fixedly connected to the lower side of the synchronous belt. A vertically arranged bag supporting rod is fixedly connected to each of the upper connecting piece and the lower connecting piece. A horizontally arranged bag supporting inserting plate is fixedly provided at the lower end of each bag supporting rod. A driving cylinder is installed on the bag transferring support, and the piston rod of the driving cylinder is connected to the upper connecting piece. After the upper bag opening suction cup and the lower bag opening suction cup open the bag mouth of the plastic packaging bag, the two bag supporting inserting plates are inserted into the bag mouth of the plastic packaging bag. Then, the piston rod of the bag supporting cylinder extends, so that the two bag supporting rods drive the two bag supporting inserting plates to move away from each other to support the plastic packaging bag. The bag transferring driving mechanism then drives the two bag supporting rods to move, so that the bag mouth of the plastic packaging bag supported on the two bag supporting inserting plates is sleeved on the two bag supporting plates of the bag supporting assembly at the upper bagging position.

[0032] For further improvement, an upper driving sprocket, a lower driving sprocket, an upper driven sprocket and a lower driven sprocket are installed on the frame. The axial directions of the upper driving sprocket, the lower driving sprocket, the upper driven sprocket and the lower driven sprocket are perpendicular to the horizontal plane. The upper driving sprocket and the upper driven sprocket are connected by an upper chain, and the lower driving sprocket and the lower driven sprocket are connected by a lower chain. The upper driving sprocket and the lower driving sprocket are driven by a driving motor to rotate simultaneously. A plurality of bag hanging seats are fixedly connected at intervals between the upper chain and the lower chain. Each bag hanging bracket is installed on a bag hanging seat. The moving assembly includes the upper chain, the lower chain and the bag hanging seats. Each bag hanging bracket can move with the movement of the upper chain, the lower chain and the bag hanging seats to the bag supply position, the upper bagging position or the waiting position.

[0033] The bag hanging bracket includes two parallel bag hanging rods installed on the bag hanging seat. The blocking part is an upper limit screw locked at the end of the bag hanging rod far from the bag hanging seat. The blocking part protrudes upward from the bag hanging rod and is perpendicular to the bag hanging rod.

[0034] Two guide rods perpendicular to the bag hanging rods are fixed on the bag hanging seat. The two guide rods are horizontally arranged. Two mounting blocks are sleeved on the two guide rods at intervals. One end of each bag hanging rod is locked to a mounting block. An adjusting screw rod is installed on the bag hanging seat in a manner that the axial direction is fixed and the circumferential direction is rotatable. The adjusting screw rod is parallel to the guide rods. Threaded through holes are provided in the middle of the two mounting blocks. The adjusting screw rod is simultaneously matched with the threaded through holes on the two mounting blocks. A lower limit screw is locked at each bag hanging rod near the bag hanging seat. The lower limit screw protrudes downward from the bag hanging rod and is perpendicular to the bag hanging rod. With this bag hanging mechanism, a plurality of upper bagging positions and the number of upper bagging can be provided as needed, providing sufficient upper bagging time for the operator, which can not only reduce the labor intensity of the operator, but also ensure the packaging efficiency of the subsequent process.

[0035] In the present invention, a plastic packaging bag with a carrying handle is fed through a bag supply device; a block-shaped packet is conveyed through a block-shaped packet conveying device; on the rotation and displacement device, since there are relief notches on both sides of the seat plate, and a set of bag supporting components is installed near each relief notch. Each set of bag supporting components includes two bag supporting plates and a driving unit for driving the two bag supporting plates to move. When the displacement motor drives the rotating shaft and the seat plate to rotate, each set of bag supporting components can be switched between the bag loading position and the bag packing position; in this way, the bag supporting components in the bag loading position can perform the bag loading operation, and the bag supporting components in the bag packing position can open the mouth of the plastic packaging bag and cooperate with the bag pushing device for packing. The two bag supporting components cycle and displace each other for operation, and the two bag supporting components can work simultaneously, improving the working efficiency; then the bag pushing device pushes the block-shaped packet conveyed by the block-shaped packet conveying device into the plastic packaging bag and pushes the block-shaped packet and the plastic packaging bag together away from the two bag supporting plates of the bag supporting components to the hot melt sealing device. The hot melt sealing device receives the plastic packaging bag containing the block-shaped packet pushed by the bag pushing device and performs shaping and hot melt sealing on the mouth of the plastic packaging bag. In this way, through the operation of the entire production line, automatic bagging and sealing of the block-shaped packet are realized, with a high degree of automation, effectively improving the packaging efficiency and reducing the packaging cost. Moreover, it can greatly reduce the number of operators and reduce the labor intensity of the operators. Description of the Drawings

[0036] Figure 1 is a perspective view of the present invention;

[0037] Figure 2 is Figure 1 a perspective view with some frames and components hidden;

[0038] Figure 3 is a perspective view of the rotation and displacement device of the present invention;

[0039] Figure 4 is another perspective view of the rotation and displacement device of the present invention;

[0040] Figure 5 is a schematic diagram of the pneumatic control principle of the rotation and displacement device of the present invention;

[0041] Figure 6 is a front view of the plastic packaging bag mouth of the hot melt sealing device of the present invention before clamping;

[0042] Figure 7 is a perspective view of the plastic packaging bag mouth of the hot melt sealing device of the present invention before clamping;

[0043] Figure 8 is a front view of the clamping, shaping and sealing mechanism of the present invention with some parts hidden;

[0044] Figure 9It is the front view after the plastic packaging bag mouth of the hot melt sealing device of the present invention is clamped;

[0045] Figure 10 It is the perspective view after the plastic packaging bag mouth of the hot melt sealing device of the present invention is clamped;

[0046] Figure 11 It is the perspective view of the hidden part of the frame of the bag supply device of the present invention;

[0047] Figure 12 It is Figure 11 The enlarged view of part A of

[0048] Figure 13 It is the perspective view of another angle of the hidden part of the frame of the bag supply device of the present invention;

[0049] Figure 14 It is Figure 13 The enlarged view of part B of

[0050] Figure 15 It is Figure 13 The enlarged view of part C of

[0051] Figure 16 It is the perspective view that the bag suction mechanism sucks the plastic packaging bag, the bag clamping mechanism clamps the plastic packaging bag, and the bag conveying mechanism does not convey the plastic packaging bag. Specific embodiments

[0052] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0053] Figures 1 to 16 As shown, an automatic bagging and sealing production line for bulk material packages includes a frame 1, on which a bag supply device 100 for plastic packaging bags 10 with a handle ring 101, a bulk material package conveying device 200, a rotation and displacement device 300, a bag pushing device 400, a hot melt sealing device 500, a control device 600, and an output conveyor belt 700 are installed.

[0054] The rotary transposition device 300 includes a transposition motor 31, a rotating shaft 32, and a seat plate 33. The transposition motor 31 drives the rotating shaft 32 to rotate through a coupling. The middle part of the seat plate 33 is sleeved on the rotating shaft 32 and is fixedly connected. Both sides of the seat plate 33 are provided with a clearance notch 331. The clearance notch 331 is U-shaped. The seat plate 33 is equipped with a group of bag-supporting components near each clearance notch 331. Each group of bag-supporting components includes two bag-supporting plates 35 and a driving unit that drives the two bag-supporting plates 35 to move. The transposition motor 31 drives the rotating shaft 32 and the seat plate 33 to rotate so that each group of bag-supporting components is in the bag-loading position and the bag-loading position. The position is switched. When the bag-holding assembly is in the bag-loading position, the driving unit first drives the two bag-holding plates 35 to move closer to each other, and the bag-supplying device 100 inserts the bag opening of the plastic packaging bag 10 into the two bag-holding plates 35 in the bag-loading position. The driving unit then drives the two bag-holding plates 35 to move away from each other to support the bag opening of the plastic packaging bag 10 to complete the bag-loading action. When the bag-holding assembly that supports the bag opening of the plastic packaging bag 10 switches to the bag-loading position, the bag-pushing device 400 pushes the block material bag 20 into the plastic packaging bag 10 and then continues to push the plastic packaging bag 10 containing the block material bag 20 onto the hot-melt sealing device 500.

[0055] The driving unit comprises two bag-supporting cylinders 34 and a group of control valves mounted on a seat plate 33 and arranged opposite to each other. An air intake switching cylinder 38 and an air discharge switching cylinder 39 are also mounted on the frame 1. Each bag-supporting plate 35 is fixedly connected to the piston rod of a bag-supporting cylinder 34. The two bag-supporting plates 35 on each group of bag-supporting components are parallel to each other. Each group of control valves comprises an air intake reversing valve 36 and an air discharge valve 37. An air intake channel 321 is arranged at the center of the rotating shaft 32. The air intake port of each air intake reversing valve 36 is connected to the air intake channel 321 through a pipeline. Each air intake reversing valve 36 is also connected to the air ports of the two bag-supporting cylinders 34 on the driving unit through an air pipe. Each air discharge valve 37 is also connected to the air ports of the two bag-supporting cylinders 34 on the driving unit through an air pipe.

[0056] When the bag-holding assembly is at the bag-loading position, the piston rod of the air-intake switching cylinder 38 extends to trigger the air-intake reversing valve 36 so that the piston rods of the two bag-holding cylinders 34 of the bag-loading position driving unit extend to drive the two bag-holding plates 35 to move closer to each other. After the bag-feeding device 100 inserts the bag opening of the plastic packaging bag 10 into the two bag-holding plates 35 at the bag-loading position, the piston rod of the air-intake switching cylinder 38 retracts, the air-intake reversing valve 36 is reset, and the piston rods of the two bag-holding cylinders 34 at the bag-loading position retract to drive the two bag-holding plates 35 to hold the bag opening of the plastic packaging bag 10 to complete the bag-loading action.

[0057] When the bag-supporting assembly that holds the opening of the plastic packaging bag 10 is in the bag-loading position, after the pusher device 400 pushes the bulk material bag 20 conveyed by the bulk material bag conveying device 200 into the plastic packaging bag 10, the piston rod of the air-release switching cylinder 39 extends to touch the air-release valve 37 to release air, causing the two bag-supporting cylinders 34 of the bag-supporting assembly at the bag-loading position to release air simultaneously. Then, the pusher device 400 continues to push the bulk material bag 20 and the plastic packaging bag 10 away from the two bag-supporting plates 35 and then pushes them onto the heat-sealing device 500. Next, the piston rod of the air-release switching cylinder 39 retracts to reset, the air-release valve 37 resets, and the two bag-supporting cylinders 34 of the bag-supporting assembly at the bag-loading position stop releasing air.

[0058] The heat-sealing device 500 receives the plastic packaging bag 10 containing the bulk material bag 20 that is pushed away from the two bag-supporting plates 35 of the bag-supporting assembly at the bag-loading position and performs shaping and heat-sealing on the opening of the plastic packaging bag 10.

[0059] The heat-sealing device 500 includes a support mechanism 1a for positioning the plastic packaging bag 10 containing the bulk material bag 20 and a clamping, shaping, and sealing mechanism 2a. The support mechanism 1a includes a backing plate 11a for positioning the plastic packaging bag 10 in the thickness direction and a support frame 12a for positioning the plastic packaging bag 10 in the height direction. The support frame 12a is fixedly connected to the backing plate 11a and can be adjusted in position relative to the backing plate 11a. Specifically, two long-strip through-holes 111a are provided on the backing plate 11a. The support frame 12a is generally L-shaped. A clamping plate 112a is installed on the other side of the backing plate 11a. The support frame 12a is fixedly connected to the backing plate 11a by using two bolts to connect the clamping plate 112a and the support frame 12a. The plastic packaging bag 10 support surface of the support frame 12a is perpendicular to the plastic packaging bag 10 abutting surface of the backing plate 11a. Loosening the two bolts can adjust the relative position of the support frame 12a and the backing plate 11a to adapt to plastic packaging bags 10 of different specifications and improve versatility.

[0060] The clamping, shaping, and sealing mechanism 2a is located above the support mechanism 1a. The clamping, shaping, and sealing mechanism 2a includes a seat body 21a, a left swing arm 22a, a right swing arm 221a, a left clamping block 23a, a right clamping block 231a, a left shaping plate 24a, a right shaping plate 241a, a left push rod 25a, a right push rod 251a, a left sealing block 26a, and a right sealing block 261a. The upper parts of the left swing arm 22a and the right swing arm 221a are pivotally connected to the seat body 21a. The left clamping block 23a is hinged to the lower part of the left swing arm 22a. The right clamping block 231a is hinged to the lower part of the right swing arm 221a. The upper ends of the left push rod 25a and the right push rod 251a are hinged to a pressing block 27. The left push rod 25a passes through the left clamping block 23a, and the lower end of the left push rod 25a is fixedly connected to the left shaping plate 24a. The right push rod 251a passes through the right clamping block 231a, and the lower end of the right push rod 251a is fixedly connected to the right shaping plate 241a;

[0061] There are two left push rods 25a and two right push rods 251a. The upper ends of the two left push rods 25a are respectively hinged on both sides of the pressing block 27a, and the upper ends of the two right push rods 251a are respectively hinged on both sides of the pressing block 27a. The two left push rods 25a both pass through the left clamping block 23a, and the left shaping plate 24a is fixedly connected to the two left push rods 25a. The two right push rods 251a both pass through the right clamping block 231a, and the right shaping plate 241a is fixedly connected to the two right push rods 251a. The length of each left push rod 25a is adjustable, and the length of each right push rod 251a is adjustable. To further improve versatility.

[0062] A first driving mechanism 3a, a second driving mechanism 4a and a third driving mechanism 5a are installed on the seat body 21a. The first driving mechanism 3a drives the left swing arm 22a and the right swing arm 221a to close towards each other or separate from each other, and the left push rod 25a and the right push rod 251a are also driven by the left clamping block 23a and the right clamping block 231a to close towards each other or separate from each other; the first driving mechanism 3a includes a first air cylinder 31a, a left gear 32a and a right gear 321a. The upper part of the left swing arm 22a is fixedly connected to the left gear 32a and is pivotally connected to the seat body 21a through the left gear 32a. The upper part of the right swing arm 221a is fixedly connected to the right gear 321a and is pivotally connected to the seat body 21a through the right gear 321a. The left gear 32a and the right gear 321a mesh with each other. The housing of the first air cylinder 31a is hinged to the seat body 21a, and the piston rod of the first air cylinder 31a is hinged to one side of the right swing arm 221a through a connecting member 311a; the piston rod of the first air cylinder 31a drives the right swing arm 221a and drives the left swing arm 22a and the right swing arm 221a to close towards each other or separate from each other through the meshing of the left gear 32a and the right gear 321a.

[0063] The second driving mechanism 4a drives the pressing block 27a to move up and down. The second driving mechanism 4a includes a second air cylinder 41a. The housing of the second air cylinder 41a is fixed on the seat body 21a, and the piston rod of the second air cylinder 41a is fixedly connected to the pressing block 27a.

[0064] The third driving mechanism 5a drives the left sealing block 26a and the right sealing block 261a to approach each other or separate from each other; the third driving mechanism 5a includes a left third air cylinder 51a and a right third air cylinder 52a. The housing of the left third air cylinder 51a is fixedly connected to the seat body 21a, the piston rod of the left third air cylinder 51a is fixedly connected to the left sealing block 26a through a left connecting member 511a, the housing of the right third air cylinder 52a is fixedly connected to the seat body 21a, and the piston rod of the right third air cylinder 52a is fixedly connected to the right sealing block 261a through a right connecting member 521a. Heaters are installed on both the left sealing block 26a and the right sealing block 261a.

[0065] When the left swing arm 22a and the right swing arm 221a are closed together, the left push rod 25a and the right push rod 251a are also closed together, and the left clamping block 23a and the right clamping block 231a clamp the two sides of the bag opening end of the plastic packaging bag 10; the second driving mechanism 4a drives the pressing block 27a to move downward, and the pressing block 27a drives the left push rod 25a and the right push rod 251a to press downward, and the left shaping plate 24a and the right shaping plate 241a press the plastic packaging bag 10. Sealing planes are shaped on both sides of the bag opening of the bag 10. When the left sealing block 26a and the right sealing block 261a move toward each other, the left sealing block 26a is inserted between the left clamping block 23a and the left shaping plate 24a, and the right sealing block 261a is inserted between the right clamping block 231a and the right shaping plate 241a. The left sealing block 26a and the right sealing block 261a clamp the sealing planes on both sides of the bag opening of the plastic packaging bag 10 for hot-melt sealing.

[0066] When the left push rod 25a and the right push rod 251a are also closed toward each other, a distance is left between the facing sides of the left shaping plate 24a and the right shaping plate 241a, and the distance can be set according to the thickness of the plastic packaging bag 10.

[0067] A fourth cylinder 6a is provided next to the support mechanism 1a, and the piston rod of the fourth cylinder 6a is connected to a push block 61a. The piston rod of the fourth cylinder 6a drives the push block 61a to push the plastic packaging bag 10 containing the block material package 20 against the support plate 11a of the support mechanism 1a along its thickness direction. After the left clamping block 23a and the right clamping block 231a clamp the two sides of the bag opening end of the plastic packaging bag 10, the piston rod of the fourth cylinder 6a drives the push block 61a to retreat.

[0068] The seat body 21a is also provided with a front driving mechanism 28a and a rear driving mechanism 29a. The front driving mechanism 28a drives the side surface of the bag opening of the plastic packaging bag 10 to be concave toward the middle, and the rear driving mechanism 29a drives the side surface of the bag opening of the plastic packaging bag 10 to be concave toward the middle.

[0069] The front driving mechanism 28a includes a front bracket 281a fixedly connected to the front side of the seat body 21a, the front bracket 281a is equipped with a front air blowing head 282a, and the front air blowing head 282a blows air at the side of one side of the bag opening of the plastic packaging bag 10, and the rear driving mechanism 29a includes a rear bracket 291a fixedly connected to the front side of the seat body 21a, the rear bracket 291a is equipped with a rear air blowing head 292a, and the rear air blowing head 292a blows air at the side of the other side of the bag opening of the plastic packaging bag 10. The plastic packaging bag 10 with the handle ring 101 has a fold line in the middle of the side, as shown by the dotted line of the plastic packaging bag 10 in the figure.

[0070] There are four sets of the support mechanisms 1a. Each set of the support mechanisms 1a is fixedly connected to a rotating shaft 71a at intervals through a backing plate 11a. The four sets of support mechanisms 1a are circumferentially spaced 90° on the rotating shaft 71a. The rotating shaft 71a is driven by a fourth driving mechanism 7a to rotate intermittently, so that different support mechanisms 1a can rotate to the sealing position (vertical position) in turn. The fourth driving mechanism 7a may include a driving motor 72a and a speed reducer 73a. The driving motor 72a is connected to the speed reducer 73a, and the speed reducer 73a is then connected to the rotating shaft 71a.

[0071] The seat body 21a is installed on a support seat 8a. An adjusting screw 81a is installed on the support seat 8a. One end of the adjusting screw 81a is connected to the seat body 21a. Rotating the adjusting screw 81a can move the seat body 21a left and right, and its moving direction is parallel to the moving direction of the left sealing block 26a. When the seat body 21a is stationary, the seat body 21a and the support seat 8a are fixedly connected through a locking mechanism 82a. The other end of the adjusting screw 81a is fixedly connected with a rotating handle 811a. The locking mechanism 82a may include a locking handle. The seat body 21a is mounted on two grooved tracks 83a on a support seat 8a. Clamping blocks are installed in the grooves of the tracks 83a. Rotating the handle 811a can make the clamping blocks clamp the tracks or be in a relaxed state. By adjusting the position of the seat body 21a, the clamping position and the sealing surface position of the entire clamping, shaping and sealing mechanism 2a can be adjusted to adapt to the sealing of block-shaped material packages 20 with different thicknesses, further improving the versatility.

[0072] Both sides of the lower part of the support seat 8a are mounted on two guide rails 91a. The support seat 8a is connected to a fifth driving mechanism 9a. The fifth driving mechanism 9a drives the support seat 8a to move back and forth. The fifth driving mechanism 9a includes a fifth driving cylinder 92a. The housing of the fifth driving cylinder 92a can be fixed on the frame 1. The piston rod of the fifth driving cylinder 92a is connected to the support seat 8a. The piston rod of the fifth driving cylinder 92a drives the support seat 8a and the entire clamping, shaping and sealing mechanism 2a to move back and forth. In this way, the sealed plastic packaging bag 10 (with a block-shaped material package 20 inside) can be moved onto the discharge conveyor belt 700.

[0073] The pushing device 400 includes a main driving wheel and a driven driving wheel installed on the frame 1. The main driving wheel and the driven driving wheel are connected by a synchronous belt. The main driving wheel is driven by a pushing motor 41. A pushing member 42 is fixedly connected to the synchronous belt. The pushing member 42 pushes the block-shaped material package 20 into the plastic packaging bag 10 and then pushes the block-shaped material package 20 and the plastic packaging bag 10 together onto the hot melt sealing device 500. The pushing end of the pushing member 42 is bent into a U shape.

[0074] The block material package conveying device 200 includes a conveyor belt 21. Above the conveyor belt 21 of the frame 1 near the bag pushing device 400, a guiding component 22 is installed. The guiding component 22 adjusts the position of the block material package 20 so that the bag pushing device 400 can reliably push the block material package 20 into the plastic packaging bag 10.

[0075] The guiding component 22 includes a guiding upper cylinder 221 and a double-headed guiding cylinder 222. The piston rod of the guiding upper cylinder 221 is arranged downward and fixedly connected to the housing of the double-headed guiding cylinder 222. Both piston rods of the double-headed guiding cylinder 222 are fixedly connected to a guiding clamping plate 223. When both piston rods of the double-headed guiding cylinder 222 contract simultaneously, the two guiding clamping plates 223 clamp the block material package 20 to correct the position of the block material package 20.

[0076] On the upper side of the feeding end of the conveyor belt 21 of the frame 1, two guiding plates 23 are provided. Near the guiding plates 23 of the frame 1, a bag blocking component 24 is provided. The bag blocking component 24 includes a vertically arranged bag blocking cylinder 241. The piston rod of the bag blocking cylinder 241 is arranged downward and fixedly connected to a material package blocking piece 242. When the piston rod of the bag blocking cylinder 241 extends, the material package blocking piece 242 blocks the block material package 20 so that the block material package 20 stops moving. When the piston rod of the bag blocking cylinder 241 retracts, the material package blocking piece 242 disengages from the block material package 20, and the block material package 20 continues to move along with the conveyor belt 21. By means of the bag blocking component 24, it is convenient to control the conveying rhythm of the block material package 20.

[0077] On the upper surface of the middle part of the conveyor belt 21 of the frame 1, a bag rotating and reversing mechanism 25 is further provided. The bag rotating and reversing mechanism 25 includes a bag rotating upper cylinder 251, a steering cylinder 252, and a double-headed bag clamping cylinder 253. The piston rod of the bag rotating upper cylinder 251 is arranged downward and fixedly connected to the housing of the steering cylinder 252. The piston rod of the steering cylinder 252 is fixedly connected to the housing of the double-headed bag clamping cylinder 253. Both piston rods of the double-headed bag clamping cylinder 253 are fixedly connected to a bag clamping plate 254. When both piston rods of the double-headed bag clamping cylinder 253 extend or contract simultaneously, the two bag clamping plates 254 can clamp or release the block material package 20. By means of the bag rotating and reversing mechanism 25, the conveying direction of the block material package 20 can be changed, which is convenient for the bag pushing device 400 to push the block material package 20 into the plastic packaging bag 10.

[0078] The bag supply device 100 includes a bag hanging mechanism 1b, a bag pushing mechanism 2b, a bag sucking mechanism 3b, a bag clamping mechanism 4b, a bag feeding mechanism 5b, a bag opening mechanism 6b, and a bag moving mechanism 7b.

[0079] The hanging bag mechanism 1b includes six horizontally arranged hanging bag brackets 11b with one end suspended. Each hanging bag bracket 11b can be displaced to the bag supply position, the bag hanging position, or the waiting position following the moving assembly. The plastic packaging bags 10 with handle rings 101 can be successively and closely sleeved on the hanging bag brackets 11b one by one using the handle rings 101. A blocking portion 12b for preventing the packaging bags from falling is provided at the suspended end of each hanging bag bracket 11b.

[0080] An upper driving sprocket 13b, a lower driving sprocket 131b, an upper driven sprocket 14b, and a lower driven sprocket 141b are mounted on the machine frame 1. The axes of the upper driving sprocket 13b, the lower driving sprocket 131b, the upper driven sprocket 14b, and the lower driven sprocket 141b are perpendicular to the horizontal plane. The upper driving sprocket 13b and the upper driven sprocket 14b are connected by an upper chain 15b, and the lower driving sprocket 131b and the lower driven sprocket 141b are connected by a lower chain 151b. The upper driving sprocket 13b and the lower driving sprocket 131b are driven by a driving motor 16b to rotate or stop simultaneously. Six hanging bag seats 17b are fixedly connected at intervals between the upper chain 15b and the lower chain 151b. Each hanging bag bracket 11b is installed on a hanging bag seat 17b. The moving assembly includes the upper chain 15b, the lower chain 151b, and the hanging bag seats 17b. Each hanging bag bracket 11b can be displaced to the bag supply position, the bag loading position, or the waiting position following the movement of the upper chain 15b, the lower chain 151b, and the hanging bag seats 17b. Figure 2 、 Figure 11 As shown in the figure, the position of the middle hanging bag bracket 11b on the output side of the plastic packaging bag 10 is the bag supply position, the positions of the hanging bag brackets 11b on both sides of the bag supply position are the waiting positions, and the positions of the three hanging bag brackets 11b far from the output side of the plastic packaging bag 10 are all the bag loading positions.

[0081] The hanging bag bracket 11b includes two parallel hanging bag rods 111b installed on the hanging bag seat 17b. The blocking portion 12b is an upper limit screw locked at the end of the hanging bag rod 111b far from the hanging bag seat 17b. The blocking portion 12b protrudes upward from the hanging bag rod 111b and is perpendicular to the hanging bag rod 111b.

[0082] Two guide rods 171b perpendicular to the bag hanging rod 111b are fixed on the bag hanging seat 17b, the two guide rods 171b are horizontally arranged, and two mounting blocks 172b are sleeved on the two guide rods 171b at intervals, one end of each bag hanging rod 111b is locked on a mounting block 172b, and an adjusting screw 173b is mounted on the bag hanging seat 17b in an axially fixed circumferentially rotatable manner, the adjusting screw 173b is parallel to the guide rod 171b, and threaded through holes are provided in the middle of the two mounting blocks 172b, and the adjusting screw 173b cooperates with the threaded through holes on the two mounting blocks 172b at the same time; each bag hanging rod 111b is locked with a lower limit screw 18b near the bag hanging seat 17b, and the lower limit screw 18b protrudes downward from the bag hanging rod 111b and is perpendicular to the bag hanging rod 111b.

[0083] The bag pushing mechanism 2b is arranged beside the bag hanging bracket 11b at the bag supply position, and the bag pushing mechanism 2b pushes the plastic packaging bag 10 on the bag hanging bracket 11b so that the bag suction mechanism 3b can suck the plastic packaging bag 10; the bag pushing mechanism 2b includes a screw rod 21b parallel to the bag hanging bracket 11b, the screw rod 21b is driven to rotate by a bag pushing motor 22b, a nut 23b is matched on the screw rod 21b, the nut 23b is fixedly connected to a bracket 24b, and a vertically arranged air Cylinder 25b, the piston rod of cylinder 25b is fixedly connected with a push plate 26b, the pushing surface of push plate 26b is perpendicular to the bag hanging bracket 11b, and the lower part of push plate 26b is provided with a make way notch 261b for making way for the bag hanging bracket 11b; when cylinder 25b drives push plate 26b to move downward, push plate 26b can follow nut 23b to move and push the plastic packaging bag 10 on bag hanging bracket 11b, and when cylinder 25b drives push plate 26b to move upward to make way, bag hanging bracket 11b can move and switch positions.

[0084] After the bag suction mechanism 3b sucks the plastic packaging bag 10, it drives the plastic packaging bag 10 to pass over the blocking portion 12b so that the plastic packaging bag 10 is separated from the bag hanging bracket 11b; the bag suction mechanism 3b includes a first horizontal cylinder 31b fixedly connected to the frame 1, a piston rod of the first horizontal cylinder 31b is fixedly connected to a mounting seat 32b, a first vertical cylinder 33b is fixedly connected to the mounting seat 32b, a suction cup frame 34b is fixedly connected to the piston rod of the first vertical cylinder 33b, and the suction cup frame 34b is fixedly connected to the piston rod of the first vertical cylinder 33b. Two bag taking suction cups 35b are installed on 4b. The two bag taking suction cups 35b are moved forward in the horizontal direction under the drive of the first horizontal cylinder 31b to suck the plastic packaging bag 10 in a suspended state, and then the bag taking suction cups 35b are driven by the first vertical cylinder 33b to suck the plastic packaging bag 10 and move upward. Then, the bag taking suction cups 35b suck the plastic packaging bag 10 and are driven by the first horizontal cylinder 31b to retreat so that the plastic packaging bag 10 passes over the blocking portion 12b and leaves the bag hanging bracket 11b.

[0085] The bag clamping mechanism 4b clamps the plastic packaging bag 10 sucked by the bag sucking mechanism 3b and makes the plastic packaging bag 10 in a vertical state; the bag clamping mechanism 4b includes a second horizontal cylinder 41b and two finger cylinders 42b. The housing of the second horizontal cylinder 41b is fixedly connected to the frame 1. The piston rod of the second horizontal cylinder 41b is fixedly connected to the two finger cylinders 42b through a mounting member 43b. The finger cylinders 42b are arranged vertically with their fingers facing downwards, and clamping blocks 44b are fixedly connected to the fingers of the finger cylinders 42b.

[0086] The bag feeding mechanism 5b drives the plastic packaging bag 10 released by the bag clamping mechanism 4b and makes the plastic packaging bag 10 move horizontally; the bag feeding mechanism 5b includes two parallel and simultaneously circulating bag feeding chains 51b. A conveyor belt 52b is connected at intervals between the two bag feeding chains 51b. The conveyor belt 52b drives the plastic packaging bag 10 released by the bag clamping mechanism 4b and makes the plastic packaging bag 10 move horizontally; each bag feeding chain 51b is connected to a bag feeding driving sprocket 53b and three bag feeding driven sprockets 54b to form a square layout structure. The side of each bag feeding chain 51b is perpendicular to the horizontal plane. The upper end surface formed by the two bag feeding chains 51b is parallel to the horizontal plane. The side of the upper end surface formed by the two bag feeding chains 51b away from the bag hanging bracket 11b is the bag discharging end. The bag feeding driving sprocket 53b rotates through the bag feeding motor 55b. Specifically, the bag feeding motor 55b drives the rotating shaft 56b to rotate, and the rotating shaft 56b drives the two bag feeding driving sprockets 53b to rotate simultaneously.

[0087] The bag opening mechanism 6b is arranged at the discharging end of the bag feeding mechanism 5b, and the bag opening mechanism 6b opens the bag mouth of the plastic packaging bag 10; the bag opening mechanism 6b includes a bag blocking cylinder 61b, a bag blocking frame 62b, a lower bag opening suction cup 63b, a vertical bag opening cylinder 64b and an upper bag opening suction cup 65b. The bag blocking cylinder 61b is arranged vertically at the bag discharging end of the bag feeding mechanism 5b. The piston rod of the bag blocking cylinder 61b is arranged vertically and fixedly connected to the bag blocking frame 62b. When the bag blocking frame 62b moves upwards, it blocks the bag, and when it returns downwards, it does not block the bag; the lower bag opening suction cup 63b is arranged beside the bag blocking frame 62b. The piston rod of the vertical bag opening cylinder 64b is arranged downwards and fixedly connected to a bag opening support frame 66b. The upper bag opening suction cup 65b is installed on the bag opening support frame 66b. After the plastic packaging bag 10 is conveyed by the bag feeding mechanism 5b and blocked by the bag blocking frame 62b, the vertical bag opening cylinder 64b drives the upper bag opening suction cup 65b to move downwards to respectively suck the two sides of the plastic packaging bag 10 with the lower bag opening suction cup 63b, and then the vertical bag opening cylinder 64b drives the upper bag opening suction cup 65b to move upwards and reset. The upper bag opening suction cup 65b and the lower bag opening suction cup 63b open the bag mouth of the plastic packaging bag 10.

[0088] The bag moving mechanism 7b is arranged beside the bag opening mechanism 6b, and the bag moving mechanism 7b supports the bag opening of the plastic packaging bag 10 and then moves the plastic packaging bag 10 to insert the bag opening of the plastic packaging bag 10 into the two bag supporting plates 35 of the bag supporting assembly at the upper bag position; the bag moving mechanism 7b includes a bag moving bracket 71b and a bag moving driving mechanism 72b, and the bag moving driving mechanism 72b drives the bag moving bracket 71b to move back and forth along the moving direction of the plastic packaging bag 10, and the bag moving bracket 71b is mounted on two parallel guide rails 711b, and two synchronous pulleys 73b are installed on the bag moving bracket 71b, and the two synchronous pulleys 73b are connected by a synchronous belt 74b, and the axial direction of the two synchronous pulleys 73b is parallel to the moving direction of the plastic packaging bag 10, and an upper connecting member 75b is fixedly connected to the upper side of the synchronous belt 74b, and a lower connecting member 76b is fixedly connected to the lower side of the synchronous belt 74b. , a vertically arranged bag-supporting rod 77b is fixedly connected to the upper connecting member 75b and the lower connecting member 76b, and a horizontally arranged bag-supporting plug plate 771b is fixedly provided at the lower end of each bag-supporting rod 77b. A driving cylinder 78b is installed on the bag-moving bracket 71b, and the piston rod of the driving cylinder 78b is connected to the upper connecting member 75b; after the upper bag-opening suction cup 65b and the lower bag-opening suction cup 63b open the bag opening of the plastic packaging bag 10, the two bag-supporting plug plates 771b are inserted into the bag opening of the plastic packaging bag 10, and then the piston rod of the bag-supporting cylinder extends so that the two bag-supporting rods 77b drive the two bag-supporting plug plates 771b to move away from each other to support the plastic packaging bag 10, and the bag-moving driving mechanism 72b then drives the two bag-supporting rods 77b to move so that the bag opening of the plastic packaging bag 10 supported on the two bag-supporting plug plates 771b is inserted into the two bag-supporting plates 35 of the bag-supporting assembly at the upper bag position.

[0089] The bag moving driving mechanism 72b may include a bag moving motor 721b, a synchronous pulley and a bag moving synchronous belt transmission mechanism. The bag moving synchronous belt is parallel to the moving direction of the plastic packaging bag 10. The bag moving synchronous belt is fixedly connected to the bag moving bracket 71b. The bag moving motor 721b drives the synchronous pulley to rotate, the synchronous pulley drives the bag moving synchronous belt to move, and the bag moving synchronous belt then drives the bag moving bracket 71 to move.

[0090] The control device 600 coordinates and controls the operation of various moving parts.

[0091] The working process of this embodiment is:

[0092] The packaging bags 10 with the handle rings 101 are put on the bag hanging bracket 11b at the bag loading position one by one by using the handle rings 101. After the bag hanging bracket 11b is full of plastic packaging bags 10, the driving motor 25 is started, and the bag hanging bracket 11b moves with the plastic packaging bags 10 to the bag supply position and stops; then the cylinder 25b drives the push plate 26b to move downward, and the push plate 26b moves with the nut 23b to support the plastic packaging bag 10 hung on the back of the bag hanging bracket 11b;

[0093] Next, two bag-taking suction cups 35b move horizontally under the drive of the first horizontal cylinder 31b while sucking the plastic packaging bag 10 in a hanging state at the frontmost position of the bag-hanging bracket 11b. Then, under the drive of the first vertical cylinder 33b, the bag-taking suction cups 35b suck the plastic packaging bag 10 and move upward. Next, the bag-taking suction cups 35b suck the plastic packaging bag 10 and then retreat under the drive of the first horizontal cylinder 31b, causing the plastic packaging bag 10 to cross the blocking portion 12b and separate from the bag-hanging bracket 11b;

[0094] After the bag-taking suction cups 35b suck the plastic packaging bag 10 and retreat to the in-place position, the two finger cylinders 42b of the bag-clamping mechanism 4b act simultaneously, and the 4 clamping blocks 44b clamp the handle rings 101 on the plastic packaging bag 10 at the same time. Then, the vacuum degree of the bag-taking suction cups 35b is removed, the bag-taking suction cups 35b release the plastic packaging bag 10, and the second horizontal cylinder 41b acts and the piston rod returns to the in-place position, driving the two finger cylinders 42b and the plastic packaging bag 10 to retreat a short distance to prevent the plastic packaging bag 10 from shifting and touching the bag-taking suction cups 35b subsequently;

[0095] Next, since the two conveyor belts 52b are arranged at intervals, the lower part of the plastic packaging bag 10 can be located between the two conveyor belts 52b. At this time, the bag-feeding motor 55b is started, and the two bag-feeding chains 51b move to drive the two conveyor belts 52b to move. The end of one conveyor belt 52b drives the lower part of the plastic packaging bag 10 to move forward, and the plastic packaging bag 10 naturally adheres to the conveyor belt 52b. When most of the plastic packaging bag 10 adheres to the conveyor belt 52b, the two finger cylinders 42b act again, and the 4 clamping blocks 44b loosen, and the plastic packaging bag 10 adheres to the conveyor belt 52b entirely and moves forward horizontally;

[0096] When the bag mouth end of the plastic packaging bag 10 touches the bag-blocking surface of the bag-blocking frame 62b, the bag-feeding motor 55b stops rotating; the vertical bag-opening cylinder 64b drives the upper bag-opening suction cup 65b to move downward. After reaching the in-place position, the upper bag-opening suction cup 65b and the lower bag-opening suction cup 63b respectively suck the two sides of the plastic packaging bag 10. Then, the vertical bag-opening cylinder 64b drives the upper bag-opening suction cup 65b to move upward and return to the in-place position. The upper bag-opening suction cup 65b and the lower bag-opening suction cup 63b open the bag mouth of the plastic packaging bag 10, and the piston rod of the bag-blocking cylinder 61b returns to the in-place position, driving the bag-blocking frame 62b to move downward to unblock the bag;

[0097] Then, the bag moving driving mechanism 72b drives the bag moving bracket 71b and the two bag supporting rods 77b to move so that the two bag supporting plugs 771b are inserted into the bag opening of the plastic packaging bag 10, and then the piston rod of the cylinder 78b is driven to extend so that the two bag supporting rods 77b drive the two bag supporting plugs 771b to move away from each other to support the plastic packaging bag 10. Then, the bag moving driving mechanism 72b is activated again to cause the bag moving bracket 71b and the two bag supporting rods 77b to move, and the two bag supporting plugs 771b on the two bag supporting rods 77b support the plastic packaging bag 10 and shift horizontally to insert the bag opening of the plastic packaging bag 10 supported on the two bag supporting plugs 771b into the two bag supporting plates 35 of the bag supporting assembly at the upper bag position, and then the cylinder 78b is driven to deflate, and the bag moving bracket 71b continues to move so that the two bag supporting plugs 771b are separated from the plastic packaging bag 10, and the two bag supporting plugs 771b after returning are used to transfer the next plastic packaging bag 10.

[0098] After the two bag-holding plates 35 at the bag-loading position hold the bag opening of the plastic packaging bag 10 to complete the bag-loading action, the transposition motor 31 rotates the seat plate 33 180 degrees through the rotating shaft 32, and the two bag-holding plates 35 transfer the plastic packaging bag 10 to the packing position.

[0099] The block material bag 20 (such as rice bag) enters from the feeding end of the conveyor belt 21, and then the two guide plates 23 guide and the bag blocking assembly 24 control the moving rhythm to reach the middle of the conveyor belt 21, and the two bag clamping plates 254 of the rotating bag reversing mechanism 25 clamp the block material bag 20, rotate 90 degrees and reverse, and then put it back to the conveyor belt 21, and then the block material bag 20 moves to the bag pushing position, and the two guiding clamps 223 of the guiding assembly 22 clamp the block material bag 20 to the material bag guiding position, and then release it, and then the bag pushing device 400 uses the pushing member 42 to push the material bag into the plastic packaging bag 10. After the bag pushing device 400 pushes the material bag into the plastic packaging bag 10 , the piston rod of the deflation switching cylinder 39 extends to trigger the deflation valve 37 to deflate, causing the two bag-supporting cylinders 34 of the bag-supporting assembly at the packing position to deflate at the same time, and the two bag-supporting plates 35 lose their tensioning force. The bag-pushing device 400 continues to push the block material bag 20 and the plastic packaging bag 10 away from the two bag-supporting plates 35 at the packing position and push them to a set of supporting mechanisms 1a whose backing plate 11a is in a horizontal state. This set of supporting mechanisms 1a rotates to a vertical position under the drive of the fourth driving mechanism 7a, and then the piston rod of the fourth cylinder 6a drives the push block 61a to push the plastic packaging bag 10 containing the block material bag 20 onto the backing plate 11a of the supporting mechanism 1a. The other set of supporting mechanisms 1 rotated to a horizontal position can receive the next plastic packaging bag 10 containing the block material bag 20;

[0100] Next, the front air blowing head 282a blows air against the side of the bag mouth of the plastic packaging bag 10, causing the side of the bag mouth of the plastic packaging bag 10 to sink inward. The rear air blowing head 292a blows air against the side of the other side of the bag mouth of the plastic packaging bag 10, causing the side of the other side of the bag mouth of the plastic packaging bag 10 to sink inward. Then, the first driving mechanism 3a drives the left swing arm 22a and the right swing arm 221a to close towards each other, and the left push rod 25a and the right push rod 251a also close towards each other. The left clamping block 23a and the right clamping block 231a clamp both sides of the end of the bag mouth of the plastic packaging bag 10. Next, the second driving mechanism 4a drives the pressing block 27a to move downward, and the pressing block 27a drives the left push rod 25a and the right push rod 251a to press downward. The left shaping plate 24a and the right shaping plate 241a shape the two sides of the bag mouth of the plastic packaging bag 10 into a sealing plane. Then, the third driving mechanism 5a drives the left sealing block 26a and the right sealing block 261a to move closer to each other. The left sealing block 26a inserts between the left clamping block 23a and the left shaping plate 24a, and the right sealing block 261a inserts between the right clamping block 231a and the right shaping plate 241a. The left sealing block 26a and the right sealing block 261a clamp the two sides of the sealing plane of the bag mouth of the plastic packaging bag 10 for hot melt sealing. As Figure 9 、 Figure 10 shown.

[0101] After the left clamping block 23a and the right clamping block 231a clamp both sides of the end of the bag mouth of the plastic packaging bag 10, at this time, the piston rod of the fourth cylinder 6a can drive the top block 61a to retreat, and the fifth driving cylinder 92a operates. The piston rod of the fifth driving cylinder 92a drives the support seat 8a and the entire clamping, shaping, and sealing mechanism 2a to move forward, and during the side sealing process, the plastic packaging bag 10 containing the block-shaped material package 20 is moved out of the support mechanism 1a and sent to the discharge conveyor belt 700, completing a working cycle of bagging and sealing.

[0102] The above is only a preferred embodiment of the present invention, and equivalent changes made by those skilled in the art according to the claims fall within the protection scope of this case.

Claims

1. An automatic bagging and sealing production line for bulk material packages, comprising a frame, characterized in that: a bag supply device for plastic packaging bags with a handle ring, a bulk material package conveying device, a rotation and displacement device, a pushing device, a hot melt sealing device and a control device are installed on the frame; the rotation and displacement device includes a displacement motor, a rotating shaft and a seat plate. The displacement motor drives the rotating shaft to rotate. The middle part of the seat plate is sleeved on the rotating shaft and is fixedly connected. Yielding notches are provided on both sides of the seat plate. A set of bag supporting components is installed near each yielding notch. Each set of bag supporting components includes two bag supporting plates and a driving unit for driving the two bag supporting plates to move. By driving the rotating shaft and the seat plate to rotate by the displacement motor, each set of bag supporting components is switched between the bag loading position and the bag packing position. When the bag supporting component is in the bag loading position, the driving unit first drives the two bag supporting plates to approach each other, and the bag supply device sleeves the bag mouth of the plastic packaging bag onto the two bag supporting plates in the bag loading position. Then the driving unit drives the two bag supporting plates to move away from each other to hold the bag mouth of the packaging bag to complete the bag loading action; when the bag supporting component holding the bag mouth of the plastic packaging bag is switched to the bag packing position, the pushing device pushes the bulk material package into the plastic packaging bag and then continues to push the bulk material package and the plastic packaging bag together onto the hot melt sealing device; the hot melt sealing device receives the plastic packaging bag containing the bulk material package pushed by the pushing device and performs shaping and hot melt sealing on the bag mouth of the plastic packaging bag; the control device coordinates and controls the work of each moving part; the hot melt sealing device includes a supporting mechanism for positioning the plastic packaging bag containing the bulk material package and a clamping, shaping and sealing mechanism. The supporting mechanism includes a backing plate for positioning the thickness direction of the plastic packaging bag and a supporting frame for positioning the height direction of the plastic packaging bag. The clamping, shaping and sealing mechanism is located above the supporting mechanism. The clamping, shaping and sealing mechanism includes a seat body, a left swing arm, a right swing arm, a left clamping block, a right clamping block, a left shaping plate, a right shaping plate, a left push rod, a right push rod, a left sealing block and a right sealing block. The upper parts of the left swing arm and the right swing arm are pivotally connected to the seat body. The left clamping block is hinged to the lower part of the left swing arm. The right clamping block is hinged to the lower part of the right swing arm. The upper ends of the left push rod and the right push rod are hinged to a pressing block. The left push rod passes through the left clamping block, and the lower end of the left push rod is fixedly connected to the left shaping plate. The right push rod passes through the right clamping block, and the lower end of the right push rod is fixedly connected to the right shaping plate; a first driving mechanism, a second driving mechanism and a third driving mechanism are installed on the seat body. The first driving mechanism drives the left swing arm and the right swing arm to close towards each other or separate from each other. The left push rod and the right push rod also close towards each other or separate from each other by driving the left clamping block and the right clamping block; the second driving mechanism drives the pressing block to move up and down, and the third driving mechanism drives the left sealing block and the right sealing block to approach each other or separate from each other; When the left swing arm and the right swing arm close towards each other, the left push rod and the right push rod also close towards each other, and the left clamping block and the right clamping block clamp both sides of the end of the bag mouth of the plastic packaging bag; the second driving mechanism drives the pressing block to move downward, the pressing block drives the left push rod and the right push rod to press downward, and the left shaping plate and the right shaping plate shape the two sides of the bag mouth of the plastic packaging bag into a sealing plane. When the left sealing block and the right sealing block approach each other, the left sealing block is inserted between the left clamping block and the left shaping plate, and the right sealing block is inserted between the right clamping block and the right shaping plate. The left sealing block and the right sealing block clamp the two sides of the sealing plane of the bag mouth of the plastic packaging bag for hot melt sealing.

2. A kind of automatic bagging and sealing production line for bulk material packages according to claim 1, characterized in that: The driving unit includes two bag-supporting cylinders and a group of control valves arranged oppositely on the seat plate. An air intake switching cylinder and an air release switching cylinder are installed on the frame. Each bag-supporting plate is fixedly connected to the piston rod of a bag-supporting cylinder. The two bag-supporting plates on each group of bag-supporting components are parallel to each other; each group of control valves includes an air intake reversing valve and an air release valve. An air intake channel is provided at the center of the rotating shaft. The air intake port of each air intake reversing valve is connected to the air intake channel through a pipeline. Each air intake reversing valve is also connected to the air ports of the two bag-supporting cylinders on the driving unit through an air pipe. Each air release valve is also connected to the air ports of the two bag-supporting cylinders on the driving unit through an air pipe; When the bag-supporting component is in the bagging position, the piston rod of the air intake switching cylinder extends to touch the air intake reversing valve to act, so that the piston rods of the two bag-supporting cylinders of the driving unit in the bagging position extend to drive the two bag-supporting plates to approach each other. After the bag mouth of the plastic packaging bag is sleeved, the piston rod of the air intake switching cylinder retracts, the air intake reversing valve resets, and the piston rods of the two bag-supporting cylinders in the bagging position retract to drive the two bag-supporting plates to move away from each other to support the bag mouth of the plastic packaging bag to complete the bagging action; When the bag-supporting component supporting the bag mouth of the plastic packaging bag is in the bag-loading position, after the pushing device pushes the bulk material package into the plastic packaging bag, the piston rod of the air release switching cylinder extends to touch the air release valve to release air, so that the two bag-supporting cylinders in the bag-loading position release air at the same time. Then the pushing device continues to push the bulk material package and the plastic packaging bag away from the two bag-supporting plates and then pushes them to the hot melt sealing device.

3. A kind of automatic bagging and sealing production line for bulk material packages according to claim 1, characterized in that: The first driving mechanism includes a first cylinder, a left gear and a right gear. The upper part of the left swing arm is fixedly connected with the left gear and is pivotally connected to the seat body through the left gear. The upper part of the right swing arm is fixedly connected with the right gear and is pivotally connected to the seat body through the right gear. The left gear and the right gear mesh with each other. The housing of the first cylinder is hinged to the seat body, and the piston rod of the first cylinder is hinged to one side of the left swing arm or the right swing arm through a connecting piece; when the piston rod of the first cylinder is hinged to one side of the left swing arm through a connecting piece, the piston rod of the first cylinder drives the left swing arm and drives the left swing arm and the right swing arm to close towards each other or separate from each other through the meshing of the left gear and the right gear; when the piston rod of the first cylinder is hinged to one side of the right swing arm through a connecting piece, the piston rod of the first cylinder drives the right swing arm and drives the left swing arm and the right swing arm to close towards each other or separate from each other through the meshing of the left gear and the right gear; The second driving mechanism comprises a second cylinder, the second cylinder housing is fixed on the seat body, and the piston rod of the second cylinder is fixedly connected to the pressure block; the third driving mechanism comprises a left third cylinder and a right third cylinder, the housing of the left third cylinder is fixedly connected to the seat body, the piston rod of the left third cylinder is fixedly connected to the left sealing block via a left connecting piece, the housing of the right third cylinder is fixedly connected to the seat body, and the piston rod of the right third cylinder is fixedly connected to the right sealing block via a right connecting piece; A fourth cylinder is provided next to the support mechanism, and the piston rod of the fourth cylinder is connected to a push block. The piston rod of the fourth cylinder drives the push block to push the plastic packaging bag containing the block-shaped material bag against the support plate of the support mechanism along its thickness direction. After the left clamping block and the right clamping block clamp the two sides of the bag opening end of the plastic packaging bag, the piston rod of the fourth cylinder drives the push block to retreat; the support frame on the support mechanism is fixedly connected to the support plate and can be adjusted relative to the support plate; There are multiple sets of the support mechanisms, each set of the support mechanisms is fixedly connected to a rotating shaft through a support plate interval, and the rotating shaft is driven to rotate intermittently by a fourth driving mechanism, so that different support mechanisms can rotate to the sealing position in turn.

4. According to claim 1, a block material package automatic bagging and sealing production line, Features: The seat body is installed on a support seat, and an adjusting screw is installed on the support seat, one end of the adjusting screw is connected to the seat body, and the seat body can be shifted left and right by rotating the adjusting screw, and its moving direction is parallel to the moving direction of the left sealing block; when the seat body is stationary, the seat body and the support seat are fixedly connected through a locking mechanism; the two sides of the lower part of the support seat are mounted on two guide rails, and the support seat is connected to a fifth driving mechanism, and the fifth driving mechanism drives the support seat to move forward and backward.

5. The automatic bagging and sealing production line for block material packages according to claim 1, Features: The left push rod and the right push rod are each provided with two, the upper ends of the two left push rods are respectively hinged on the two sides of the pressing block, the upper ends of the two right push rods are respectively hinged on the two sides of the pressing block, the two left push rods pass through the left clamping block, the left shaping plate is fixedly connected to the two left push rods, the two right push rods pass through the right clamping block, and the right shaping plate is fixedly connected to the two right push rods; The seat body is also provided with a front driving mechanism and a rear driving mechanism, the front driving mechanism drives the side surface on one side of the bag opening of the plastic packaging bag to be concave toward the middle, and the rear driving mechanism drives the side surface on the other side of the bag opening of the plastic packaging bag to be concave toward the middle; the front driving mechanism comprises a front bracket firmly connected to the front side of the seat body, the front bracket is provided with a front air blowing head, the front air blowing head is aimed at the side surface on one side of the bag opening of the plastic packaging bag to blow air, and the rear driving mechanism comprises a rear bracket firmly connected to the front side of the seat body, the rear bracket is provided with a rear air blowing head, and the rear air blowing head is aimed at the side surface on the other side of the bag opening of the plastic packaging bag to blow air; or the front driving mechanism comprises a front bracket firmly connected to the front side of the seat body, the front bracket is provided with a front cylinder, the front cylinder drives the front driving rod to drive the side surface on one side of the bag opening of the plastic packaging bag to be concave toward the middle, and the rear driving mechanism comprises a rear bracket firmly connected to the rear side of the seat body, the rear bracket is provided with a rear cylinder, and the rear cylinder drives the rear driving rod to drive the side surface on the other side of the bag opening of the plastic packaging bag to be concave toward the middle.

6. The automatic bagging and sealing production line for block material packages according to claim 1, Features: The package pushing device comprises a main transmission wheel and a slave transmission wheel mounted on a frame, the main transmission wheel and the slave transmission wheel are connected by a synchronous belt, the main transmission wheel is driven by a package pushing motor, a pushing member is fixedly connected to the synchronous belt, and the pushing member pushes the block material package into the plastic packaging bag and then continues to push the block material package and the plastic packaging bag together to the hot melt sealing device; The block material package conveying device includes a conveyor belt, and a frame is equipped with a guiding assembly above the conveyor belt near the package pushing device. The guiding assembly adjusts the position of the block material package so that the package pushing device can reliably push the block material package into the plastic packaging bag; the guiding assembly includes an upper guiding cylinder and a double-headed guiding cylinder, the piston rod of the upper guiding cylinder is arranged downward and fixedly connected to the shell of the double-headed guiding cylinder, the two piston rods of the double-headed guiding cylinder are both fixedly connected to a guiding clamping plate, and the two piston rods of the double-headed guiding cylinder are contracted at the same time so that the two guiding clamping plates clamp the block material package to the guiding position of the block material package.

7. An automatic bagging and sealing production line for block material packages according to any one of claims 1 to 6, Features: The bag supply device comprises a bag hanging mechanism, a bag pushing mechanism, a bag suction mechanism, a bag clamping mechanism, a bag feeding mechanism, a bag opening mechanism and a bag moving mechanism; The bag hanging mechanism comprises a plurality of bag hanging brackets which are arranged horizontally and suspended at one end, each bag hanging bracket can be shifted to at least a bag supply position or a bag hanging position following the moving assembly, and plastic packaging bags with handle loops can be closely mounted on the bag hanging brackets one by one by using the handle loops, and a blocking portion for preventing the packaging bags from falling is provided at one suspended end of each bag hanging bracket; The bag pushing mechanism is arranged beside the bag hanging bracket at the bag supply position, and the bag pushing mechanism pushes the plastic packaging bag on the bag hanging bracket so that the bag suction mechanism can suck the plastic packaging bag; The bag suction mechanism sucks the plastic packaging bag and drives the plastic packaging bag to pass over the blocking portion so that the plastic packaging bag is separated from the bag hanging bracket; The bag clamping mechanism clamps the plastic packaging bag sucked by the bag suction mechanism and makes the plastic packaging bag in a vertical state; The bag feeding mechanism drives the plastic packaging bag released by the bag clamping mechanism and moves the plastic packaging bag in a horizontal direction; The bag opening mechanism is arranged at the discharge end of the bag feeding mechanism, and the bag opening mechanism opens the bag mouth of the plastic packaging bag; The bag moving mechanism is arranged beside the bag opening mechanism, and the bag moving mechanism supports the bag opening of the plastic packaging bag and then moves the plastic packaging bag to insert the bag opening of the plastic packaging bag into the two bag supporting plates of the bag supporting assembly at the upper bag position.

8. The automatic bagging and sealing production line for block material packages according to claim 7, Features: The bag pushing mechanism includes a screw rod parallel to the bag hanging bracket, the screw rod is driven to rotate by a bag pushing motor, a nut is matched on the screw rod, the nut is fixedly connected to a bracket, a vertically arranged cylinder is provided on the bracket, a piston rod of the cylinder is fixedly connected to a push plate, a pushing surface of the push plate is perpendicular to the bag hanging bracket, and a notch is provided at the bottom of the push plate to make way for the bag hanging bracket; when the cylinder drives the push plate to move downward, the push plate can follow the nut to move and push the plastic packaging bag on the bag hanging bracket, and when the cylinder drives the push plate to move upward to make way, the bag hanging bracket can move and switch positions; The bag sucking mechanism includes a first horizontal cylinder fixedly connected to the frame. The piston rod of the first horizontal cylinder is fixedly connected to a mounting seat, and a first vertical cylinder is fixedly connected to the mounting seat. The piston rod of the first vertical cylinder is fixedly connected to a suction cup holder, and a bag-taking suction cup is installed on the suction cup holder. The bag-taking suction cup moves forward horizontally under the drive of the first horizontal cylinder to suck the plastic packaging bag in a hanging state, and then moves upward under the drive of the first vertical cylinder to suck the plastic packaging bag. Then, the bag-taking suction cup sucks the plastic packaging bag and retreats under the drive of the first horizontal cylinder, so that the plastic packaging bag crosses the blocking part and detaches from the bag hanging bracket. The bag clamping mechanism includes a second horizontal cylinder and a finger cylinder. The housing of the second horizontal cylinder is fixedly connected to the frame. The piston rod of the second horizontal cylinder is fixedly connected to the finger cylinder through a mounting member. The finger cylinder is vertically arranged with its fingers facing downwards, and clamping blocks are fixedly connected to the fingers of the finger cylinder. The bag feeding mechanism includes two parallel and simultaneously circulating bag feeding chains. A conveyor belt is connected at intervals between the two bag feeding chains. The conveyor belt drives the plastic packaging bag released by the bag clamping mechanism and moves the plastic packaging bag horizontally. Each bag feeding chain is connected to a bag feeding driving sprocket and three bag feeding driven sprockets to form a square layout structure. The side of each bag feeding chain is perpendicular to the horizontal plane. The upper end surface formed by the two bag feeding chains is parallel to the horizontal plane. The side of the upper end surface formed by the two bag feeding chains away from the bag hanging bracket is the bag outlet end. The bag feeding driving sprocket rotates through a bag feeding motor. The bag opening mechanism includes a bag blocking cylinder, a bag blocking frame, a lower bag opening suction cup, a vertical bag opening cylinder, and an upper bag opening suction cup. The bag blocking cylinder is vertically arranged at the bag outlet end of the bag feeding mechanism. The piston rod of the bag blocking cylinder is vertically arranged and fixedly connected to the bag blocking frame. When the bag blocking frame moves upward, it blocks the bag, and when it returns downward, it does not block the bag. The lower bag opening suction cup is arranged beside the bag blocking frame. The piston rod of the vertical bag opening cylinder is arranged downward and fixedly connected to a bag opening bracket. The upper bag opening suction cup is installed on the bag opening bracket. After the plastic packaging bag is transported by the bag feeding mechanism and blocked by the bag blocking frame, the vertical bag opening cylinder drives the upper bag opening suction cup to move downward to respectively suck the two sides of the plastic packaging bag with the lower bag opening suction cup, and then the vertical bag opening cylinder drives the upper bag opening suction cup to move upward and reset. The upper bag opening suction cup and the lower bag opening suction cup open the bag mouth of the plastic packaging bag. The bag moving mechanism includes a bag moving support and a bag moving driving mechanism. The bag moving driving mechanism drives the bag moving support to move back and forth along the moving direction of the plastic packaging bag. Two synchronous belt pulleys are installed on the bag moving support, and the two synchronous belt pulleys are connected by a synchronous belt. The axial directions of the two synchronous belt pulleys are parallel to the moving direction of the plastic packaging bag. An upper connecting piece is fixedly connected to the upper side of the synchronous belt, and a lower connecting piece is fixedly connected to the lower side of the synchronous belt. A vertically arranged bag supporting rod is fixedly connected to each of the upper connecting piece and the lower connecting piece. A horizontally arranged bag supporting inserting plate is fixedly provided at the lower end of each bag supporting rod. A driving cylinder is installed on the bag moving support, and the piston rod of the driving cylinder is connected to the upper connecting piece. After the upper bag opening suction cup and the lower bag opening suction cup open the bag mouth of the plastic packaging bag, the two bag supporting inserting plates are inserted into the bag mouth of the plastic packaging bag. Then, the piston rod of the bag supporting cylinder extends, so that the two bag supporting rods drive the two bag supporting inserting plates to move away from each other to support the plastic packaging bag. The bag moving driving mechanism then drives the two bag supporting rods to move, so that the bag mouth of the plastic packaging bag supported on the two bag supporting inserting plates is sleeved on the two bag supporting plates of the bag supporting assembly at the upper bag position.

9. The automatic bagging and sealing production line for bulk material packages according to claim 7, characterized in that: An upper driving sprocket, a lower driving sprocket, an upper driven sprocket and a lower driven sprocket are installed on the frame. The axial directions of the upper driving sprocket, the lower driving sprocket, the upper driven sprocket and the lower driven sprocket are perpendicular to the horizontal plane. The upper driving sprocket and the upper driven sprocket are connected by an upper chain, and the lower driving sprocket and the lower driven sprocket are connected by a lower chain. The upper driving sprocket and the lower driving sprocket are driven by a driving motor to rotate simultaneously. A plurality of bag hanging seats are fixedly connected at intervals between the upper chain and the lower chain. Each bag hanging bracket is installed on a bag hanging seat. The moving assembly includes the upper chain, the lower chain and the bag hanging seats. Each bag hanging bracket can move with the upper chain, the lower chain and the bag hanging seats to shift to the bag supply position, the bag loading position or the waiting position. The bag hanging bracket includes two parallel bag hanging rods installed on the bag hanging seat. The blocking portion is an upper limit screw locked at the end of the bag hanging rod away from the bag hanging seat. The blocking portion protrudes upward from the bag hanging rod and is perpendicular to the bag hanging rod. Two guide rods perpendicular to the bag hanging rods are fixed on the bag hanging seat. The two guide rods are horizontally arranged. Two mounting blocks are sleeved on the two guide rods at intervals. One end of each bag hanging rod is locked to a mounting block. An adjusting screw rod is installed on the bag hanging seat in a manner that the axial direction is fixed and the circumferential direction is rotatable. The adjusting screw rod is parallel to the guide rods. Threaded through holes are provided in the middle of the two mounting blocks. The adjusting screw rod is simultaneously matched with the threaded through holes on the two mounting blocks. A lower limit screw is locked at each bag hanging rod near the bag hanging seat. The lower limit screw protrudes downward from the bag hanging rod and is perpendicular to the bag hanging rod.

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