WO2012139371A1

WO2012139371A1 - Tube-sealing and bag-making filling machine

Info

Publication number: WO2012139371A1
Application number: PCT/CN2011/081439
Authority: WO
Inventors: 李岳云; 李彦民
Original assignee: 广东粤东机械实业有限公司
Priority date: 2011-04-15
Filing date: 2011-10-27
Publication date: 2012-10-18
Also published as: EP2700576A4; CN102180276A; EP2700576B1; CN102180276B; EP2700576A1

Abstract

A tube-sealing and bag-making filling machine comprising a rack (1), two tube feeding devices (3), two bag body feeding devices (4), two heat-sealing devices (5), two filling devices (6), two sealing devices (7), two bag withdrawing devices (8) and a transmission device (2). The transmission device (2) comprises a transmitting chain (21), on which a plurality of hanging panels (12) which are spaced evenly and provided with openings (10) are mounted. It is characterized in that the hanging panel (12) is articulated with the transmitting chain (21) on one side; an advancing section (2101) and a returning section (2102) of the transmitting chain (21) are provided with a tube feeding position (221), a bag body feeding position (222), a heat-sealing position (223), a filling position (224), a sealing position (225) and a bag withdrawing position (226) in succession, with the devices arranged in their corresponding positions; a first turning mechanism is disposed between the tube feeding position (221) and the bag body feeding position (222); a second turning mechanism is disposed between the heat-sealing position (223) and the filling position (224); a hanging panel slot (15) capable of maintaining the hanging panel in an upright state is disposed between the first turning mechanism and the second turning mechanism. The present invention combines the production of packing bags and filling of materials, and has a simple and compact structure, low space occupation and a low failure rate.

Description

Sealed bag filling machine

The invention relates to a machine for packaging materials, in particular to a sealed control bag filling machine which integrates packaging bag production and material filling. Background technique

Sealed bag filling machines use packaging bags to package materials, usually including bag making and filling.

In a conventional sealed bag filling machine, the filling portion and the bag forming portion are generally independent of each other, each having a conveying device, and a gripping and turning device is disposed between the two conveying devices. Wherein, the bag making portion comprises a feeding device, a bag feeding device, a heat sealing device and a first conveying device, and the feeding device, the bag feeding device and the heat sealing device are arranged in sequence along the traveling direction of the first conveying device; The filling device, the sealing device, the bag-removing device and the second conveying device are arranged, and the filling device, the sealing device and the bag-removing device are arranged in sequence along the traveling direction of the second conveying device. In order to ensure the connection between the straw and the bag body, to ensure the quality of the bag, and to facilitate the setting of the heat sealing device, it is usually required to be placed in the horizontal direction when the straw is delivered to the bag supply device and the heat sealing device; In part, in order to facilitate filling and sealing, and to prevent material leakage, it is necessary to place the packaging bag in a vertical direction with the suction pipe facing upward. In operation, in the bag making part, the feeding device sends the straw to the first conveying device; the bag feeding device stores the prefabricated bag body (the bag body is usually made of a plastic film, and the bag body is provided with a bag mouth), When the straw is transported to the bag feeding device by the first conveying device, the bag feeding device sends out the bag body and opens the bag mouth, and fits on the straw; then the heat sealing device seals the straw with the bag mouth to form a packaging bag; After the bag-making portion is made into a packaging bag, the packaging bag is removed from the first conveying device of the bag-making portion by the grasping turning device, and transferred to the second conveying device of the filling portion, and the packaging bag is realized in the process. Placed in the horizontal direction to be placed in the vertical direction; the filling and sealing operations are sequentially performed by the filling device and the sealing device, and then the package containing the material is taken out from the second conveying device by the bag unloading device.

The above traditional sealed bag filling machine actually puts together the bag making machine and the filling machine, and uses a grab turning device to combine the two in the middle. Thus, on the one hand, the whole machine structure is complicated and the volume is relatively large. , occupying a large space, on the other hand, due to the addition of the gripping and turning device, not only increases the manufacturing cost of the whole machine, but also increases the failure rate.

Summary of the invention

The technical problem to be solved by the invention is to provide a sealed bag filling machine, which is provided with a bag making and material filling, has a simple and compact structure, high work efficiency, and low manufacturing cost of the whole machine. , takes up less space and has a lower failure rate. The technical solutions adopted are as follows:

A sealed bag filling machine comprising a frame, two feeding devices, two bag feeding devices, two heat sealing devices, two filling devices, two sealing devices, two bag retreating devices and one The conveying device, two feeding devices, two bag feeding devices, two heat sealing devices, two filling devices, two sealing devices and two bag retreating devices are all arranged on the frame; the conveying device comprises a conveyor chain The driving sprocket, the driven sprocket and the main driving mechanism, wherein the driving sprocket, the driven sprocket and the main driving mechanism are all mounted on the frame, and the conveying chain is mounted on the driving sprocket and the driven sprocket, the active chain The wheel is connected to the main drive mechanism, and the conveyor chain is equidistantly mounted with a plurality of hanging plates, and the hanging plate is provided with an opening capable of accommodating the suction pipe, wherein: one side of the hanging plate is hinged with the conveying chain; along the conveying chain In the direction of travel, the forward section and the return section of the conveyor chain have a feeding station, a bag supply station, a heat sealing station, a filling station, a sealing station and a bag returning station, respectively. a feeding device a bag body supply device, a heat sealing device, a filling device, a sealing device and a bag unloading device respectively, respectively, a feeding station on the front section of the conveyor chain, a bag supply station, a heat sealing station, The filling station, the sealing station and the bag returning position correspond to each other, and another feeding device, a bag feeding device, a heat sealing device, a filling device, a sealing device and a bag unloading device respectively The feeding station, the bag supply station, the heat sealing station, the filling station, the sealing station and the bag returning position on the return section of the conveyor chain correspond to each other; A first inverting mechanism capable of inverting the hanging plate from a horizontal state to a vertical state is disposed between the feeding station and the bag supply station; and the heat sealing station and the filling station are capable of being disposed between A second turning mechanism that flips the hanging plate from a vertical state to a horizontal state; and a hanging plate slot capable of holding the hanging plate in a vertical state between the first turning mechanism and the second turning mechanism.

The working process of the above-mentioned sealed bag filling machine is briefly described as follows: Under the driving of the main driving mechanism and the driving sprocket, the conveying chain circulates, and on the front section of the conveying chain, the hanging plates sequentially reach the front section of the conveying chain. The feeding station, the bag supply station, the heat sealing station, the filling station, the sealing station and the bag returning station, respectively, complete the feeding pipe, the bag supply, the heat sealing, and the feeding on the front section of the conveyor chain. Filling, sealing and bag returning; at the feeding station, the hanging plate is in a horizontal state, the feeding device sends the straw into the opening of the hanging plate, and the straw is hung on the hanging plate and placed in the vertical direction; In the body supplying process and the heat sealing process, the straw and the bag body are required to be placed in the horizontal direction, so that a first turning mechanism is provided between the feeding pipe station and the bag feeding station, and the hanging plate is turned from the horizontal state to the vertical state. , the straw is placed in the horizontal direction, so that the bag feeding device can send the bag body to the position corresponding to the straw, and the heat sealing device immediately performs heat sealing to connect the bag body with the straw; after the heat sealing process is completed, the bag is made package The bag can then be filled; in the filling process, the straw and the bag are required to be placed in the vertical direction, so a second turning mechanism is arranged between the heat sealing station and the filling station, and the hanging plate is vertical The straight state is turned to the horizontal state, the straw and the bag body are placed in the vertical direction, and the straw opening is upward, so that the straw is matched with the filling device for filling; after the filling is completed, at the sealing station, the sealing device performs the suction pipe Sealing (such as placing the lid first, then screwing the lid); When the bag containing the material arrives at the bag returning station, the bag unloading device removes the bag containing the material from the hanging plate to complete the front section of the conveyor chain The process of bag making, filling, sealing, etc.; after the bag unloading process on the front section of the conveyor chain is completed, the empty hanging plate is in a horizontal state and enters the return section of the conveyor chain with the travel of the conveyor chain, and arrives in turn The feeding station, the bag supply station, the heat sealing station, the filling station, the sealing station and the bag returning station on the return section of the conveyor chain, respectively, complete the feeding pipe and bag on the return chain of the conveyor chain Body supply , heat sealing, filling, sealing and bag returning, the process of feeding pipe, bag supply, heat sealing, filling, sealing and bag return on the return chain of the conveyor chain are the same as the front section of the conveyor chain; After the bag returning process on the return section of the conveyor chain is completed, the empty hanging plate is in a horizontal state and continues to the feeding station on the front section of the conveyor chain, and then the next round of bag making, filling, sealing, etc. Process, so cycle. A hanging plate slot is provided between the first inverting mechanism and the second inverting mechanism to limit the hanging plate to ensure that the hanging plate remains in a vertical state during the bag feeding process and the heat sealing process.

In general, when the bag body feeding device sends out the bag body, the heat sealing device heat seals the bag body to the straw, and then the heat sealing device further heat seals the bag body and the straw to be fastened together. Therefore, usually the heat sealing station corresponds to a length of the conveyor chain, and the beginning end of the heat sealing station overlaps with the bag supply station.

One side of the hanging plate (this side of the hanging plate is generally referred to as the inner side of the hanging plate) is hinged to the conveying chain, and by selecting a hinge of a suitable structure, the horizontal hanging plate can only be turned upside down and cannot be turned down, and The maximum angle at which the hanging plate is flipped up is 90 degrees (the selection of the hinge is a conventional technique in the art), so that when the hanging plate is in a horizontal state, no other structure is needed to maintain the horizontal state of the hanging plate, and the hanging plate is flipped from the horizontal state. After the vertical state, it will not continue to flip and will fall to the inside of the conveyor chain.

In a preferred embodiment, the first inverting mechanism includes a first limiting block, the first limiting block has a first limiting edge, and the first limiting edge is in contact with the lower surface of the hanging plate, and the first limiting edge is Gradually toward the conveyor chain along the direction of travel of the conveyor chain and gradually rising. When the hanging plate reaches the first turning mechanism, under the action of gravity, the hanging plate keeps in contact with the first limiting edge during the traveling with the conveying chain, and therefore, the position of the hanging plate during the traveling process It is determined by the first limit edge line; as the conveyor chain travels, the hanging plate advances along the first limit edge line, and the first limit edge line applies a lifting force to the hanging plate and a thrust toward the conveyor chain, and the hanging plate is gradually upward. Flip and its outside

(ie the side away from the conveyor chain) is constantly raised until the hanging plate is in a vertical position. The hanging plate sent by the feeding device is in a horizontal state. In order to flip the hanging plate from the horizontal state to the vertical state, the starting point and the ending point of the first limiting edge line generally satisfy the following conditions: The hanging plate reaches the first limiting block At the starting end, the lower surface of the hanging plate is located above the starting point of the first limiting edge; when the hanging plate reaches the end of the first limiting block, the gap between the end point of the first limiting edge and the conveying chain can only be allowed to hang The plate passes in a vertical state, and the hanging plate is located inside the end point of the first limit edge line, and the projection of the lower surface of the hanging plate in the vertical direction is a line, and the projection of the end point of the first limit edge line in the vertical direction falls. On the line. Through the above-mentioned first limiting block, the hanging plate and the conveying chain hinged to each other can turn the hanging plate from a horizontal state to a vertical state, and the structure is simple. And reliable operation.

In another preferred embodiment, the first inverting mechanism includes a first limiting block, the first limiting block has a first guiding curved surface, and the first guiding curved surface is in contact with the lower surface of the hanging plate, and the first guiding curved surface is transported along The direction of travel of the chain is gradually twisted from the upwardly directed horizontal plane towards the vertical plane of the conveyor chain. Thus, when the hanging plate reaches the first turning mechanism, the hanging plate keeps in contact with the first guiding curved surface during the traveling with the conveying chain, and therefore, the position of the hanging plate during the traveling is first The guiding surface is determined; as the conveying chain travels, the hanging plate advances along the first guiding surface, and the first guiding surface applies a lifting force to the hanging plate and a thrust toward the conveying chain, and the hanging plate is gradually turned upward until the hanging The board is in a vertical position. Since the hanging plate is in contact with the first limiting block through the surface during the upward flipping, the first limiting block can better support the hanging plate. The hanging plate sent from the feeding device is in a horizontal state. In order to flip the hanging plate from the horizontal state to the vertical state, the starting end and the end of the first guiding curved surface generally satisfy the following conditions: The hanging plate reaches the first guiding curved surface At the beginning, the lower surface of the hanging plate is located above the horizontal plane of the starting end of the first guiding curved surface; when the hanging plate reaches the end of the first guiding curved surface, the gap between the vertical surface of the end of the first guiding curved surface and the conveying chain can only allow The hanging plate passes in a vertical state, and the hanging plate is located inside the vertical surface at the end of the first guiding curved surface. Through the above-mentioned first limiting block, the hanging plate and the conveying chain hinged with each other can turn the hanging plate from the horizontal state to the vertical state, the structure is simple, and the operation is reliable.

The second inverting mechanism described above is capable of inverting the hanging plate from a vertical state to a horizontal state, which acts opposite to the first inverting mechanism.

In a preferred embodiment, the second inverting mechanism includes a second limiting block, the second limiting block has a second limiting edge, and the second limiting edge is in contact with the lower surface of the hanging plate, and the second limiting edge is Gradually away from the conveyor chain along the direction of travel of the conveyor chain and gradually decreasing. The packaging bag and the hanging plate sent out from the heat sealing device have a tendency to flip down under the action of gravity, and the lower surface of the hanging plate keeps in contact with the second limit edge line during the process of traveling with the conveyor chain. Therefore, the position of the hanging plate during the traveling process is determined by the second limit edge line; as the conveyor chain travels, the hanging plate advances along the second limit edge line, and the second limit edge line applies a supporting force to the hanging plate The hanging plate is gradually turned down and its outer side (ie, the side away from the conveyor chain) is continuously lowered until the hanging plate is horizontal. Through the above-mentioned second limiting block, the hanging plate and the conveying chain which are hinged to each other, and the effect of the gravity on the packaging bag and the hanging plate, the hanging plate can be turned from the vertical state to the horizontal state, the structure is simple, and the operation is reliable.

In another preferred embodiment, the second inverting mechanism includes a second limiting block, the second limiting block has a second guiding curved surface, the second guiding curved surface is in contact with the lower surface of the hanging plate, and the second guiding curved surface is transported along the second guiding surface. The direction of travel of the chain is gradually reversed from the vertical plane towards the conveyor chain to an upwardly directed horizontal plane. The packaging bag and the hanging plate sent out from the heat sealing device have the tendency of the hanging plate to be turned downward under the action of gravity, and the lower surface of the hanging plate keeps in contact with the second guiding curved surface during the traveling with the conveying chain. Therefore, the position of the hanging plate during the traveling is determined by the second guiding surface; as the conveying chain travels, the hanging plate advances along the second guiding surface, and the second guiding surface applies a supporting force to the hanging plate, and the hanging plate Gradually downwards and the outside (ie, the side away from the conveyor chain) is continuously lowered until the panel is level. Since the hanging plate is in contact with the second limiting block through the surface during the upward flipping, the second limiting block can better support the hanging plate. Through the above-mentioned second limiting block, the hanging plate and the conveying chain which are hinged to each other, and the effect of the gravity on the packaging bag and the hanging plate, the hanging plate can be turned from the vertical state to the horizontal state, the structure is simple, and the operation is reliable.

The above-mentioned feeding device, bag feeding device, heat sealing device, filling device, sealing device (in one specific embodiment, the sealing device includes a capping device, a capping device and a capping device) and a bag retracting device can be adopted Existing device.

In a preferred embodiment, the pipe feeding device comprises a vibration plate, a pipe guide rail, a push tube cylinder and a push tube guide rail, and the vibration disc, the feed tube guide rail, the push tube cylinder and the push tube guide rail are all mounted on the frame; The mouth is connected with the rear end of the feeding pipe guide, and the push pipe guide is connected with the front end of the feeding pipe guide; the pushing pipe guide is gradually closer to the conveying chain along the traveling direction of the conveying chain; the front part of the feeding pipe guide is a straight conveying pipe guiding section, and the pushing pipe a cylinder is disposed above the feed pipe guide rail and parallel to the linear feed pipe rail segment, and the piston rod of the push pipe cylinder is provided with a one-way claw capable of dialing the suction pipe on the linear feed pipe rail segment; A dial portion extends outwardly from the rear side of the upper opening. The width of the dial portion should be such that it can just move a straw at a time (usually the width of the dial portion is equal to or slightly less than the width of the push tube rail). When the feeding pipe is driven, the conveying chain drives and drives the hanging plate to travel together under the driving of the driving mechanism; meanwhile, under the driving of the pushing pipe cylinder, the one-way claw pushes the suction pipe on the feeding pipe guide to suck The pipe moves along the feeding pipe guide from the back to the front, and the suction pipe at the front end of the feeding pipe rail is at the connection portion between the feeding pipe guide and the push pipe guide; when the hanging plate reaches the position corresponding to the connecting portion, the opening on the hanging plate is pushed The inner side wall of the tube guide is blocked, and the dial tube portion is in contact with the straw; then the hanging plate continues to move forward, and the straw at the front end of the tube guide rail is sent into the push tube guide rail, and the suction tube is driven to move along the push tube guide; During the movement of the pipe guide rail, the suction pipe is gradually inserted into the opening under the action of the outer side wall of the push pipe guide; when the suction pipe leaves the push pipe guide, the suction pipe has been completely fed into the opening, and the suction pipe is hung on the hanging plate; After passing the position corresponding to the above-mentioned connecting portion, the one-way claw feeds the next suction pipe on the pipe guide rail to the connecting portion, the next hanging plate reaches a position corresponding to the connecting portion, and then the pipe feeding operation of the next pipette is performed. The piston rod of the push cylinder can push a plurality of suction pipes each time, and push the plurality of suction pipes one by one to the connection portion of the feeding pipe guide and the push pipe guide; the piston rod of the push cylinder is pushed forward in the process of pushing forward The stroke of the cylinder rod of the cylinder determines the distance the suction pipe is pushed forward, thereby determining the number of suction pipes that push the piston rod of the push cylinder to the connection portion during one forward projection (assuming two adjacent straws) The center distance in the direction of the feed pipe guide is L, and the stroke of the piston rod of the push cylinder is N times L, and the piston rod of the push cylinder can push N suction pipes to the above connection in one forward forward process. unit). The feeding device has a simple structure and reliable operation, and each time an action cycle is completed, a plurality of straws can be transported to the conveying device, which is suitable for multi-way side-by-side simultaneous bag making, which is beneficial to the improvement of production efficiency.

Preferably, the width of the dial portion of the hanging plate is gradually decreased from front to back. When the hanging plate feeds the straw at the foremost end of the feeding guide rail into the push tube guide and drives it to move along the push tube guide, the next suction tube contacts the side of the dial portion and slides relative to each other, and the next straw is smoothly sent. Into the above connection.

Generally, the rear end of the feeding pipe guide is higher than the front end thereof, so that the suction pipe coming out from the outlet port of the vibrating plate enters the feeding pipe rail, and the gravity pipe can be used to send the suction pipe from the rear end of the feeding pipe guide. The front end of the tube guide slides. The above-mentioned linear feed pipe rail segments may be arranged in a horizontal direction or may be gradually inclined downward from the back to the front.

The one-way claw is a member that can swing freely forward and is restricted in backward swing. In a specific embodiment, the connecting rod is mounted on the piston rod of the push cylinder, and the front side of the connecting plate is provided with a one-way claw The upper end of the one-way claw is rotatably mounted on the one-way claw seat. Thus, when the piston rod of the push cylinder is retracted backward, the connecting plate and the one-way claw move backward, and since the one-way claw can swing forward when hitting the suction pipe, the suction pipe does not hinder the movement of the one-way claw; When the piston rod of the push cylinder protrudes forward, the lower end of the one-way claw contacts the suction pipe and swings backward. When the rear side of the one-way claw contacts the lower end of the connecting plate, the one-way claw is blocked due to the blocking of the lower end of the connecting plate It can no longer swing backwards. At this time, the one-way claw drives the suction pipe on the feed pipe rail to move from the rear to the front along the feed pipe guide under the driving of the push cylinder. Generally, the size of the lower end of the one-way claw is smaller than the material through hole of the straw, so that the lower end of the one-way claw can be inserted into the material through hole of the straw, so that the lower end of the one-way claw can reliably contact the straw. The lower end of the one-way claw may also be in the form of a sheet, and the lower end of the sheet may be inserted into the gap between the adjacent two straws, and the lower end of the one-way claw may be reliably brought into contact with the straw.

In order to smoothly move the one-way claw, it is preferable to install a guide rod on the connecting plate, and the guide rod is parallel with the push tube cylinder, and the guide frame is provided on the frame, and the guide rod is in the guide sleeve.

In one embodiment, the linear feed tube rail segments are perpendicular to corresponding portions of the conveyor chain. There may also be an angle not equal to 90 degrees between the linear guide rail section and the corresponding portion of the conveyor chain, but it is preferred that the linear feed rail section is substantially perpendicular to the corresponding portion of the conveyor chain.

In a specific embodiment, the push tube guide is a linear guide. In another specific embodiment, the push tube guide rail is composed of a smoothly connected parallel segment and an asymptotic segment, and one end of the parallel segment is connected to the feeding tube rail and the other end is connected to the asymptotic segment, wherein the parallel segment is parallel to the conveying chain. The asymptotic section gradually approaches the conveyor chain along the direction of travel of the conveyor chain.

In a preferred embodiment, the bag feeding device comprises a bag storing mechanism, a bag picking and dispensing mechanism, a bag opening mechanism, a bag feeding mechanism, and a bag body capable of receiving the bag from the pick and place bag mechanism and sending the bag body to the bag opening opening The bag body conveying mechanism of the mechanism; the bag storing mechanism and the pick-and-place bag mechanism are mounted on the frame; the bag feeding mechanism comprises a moving seat and a moving seat position switching mechanism, and the moving seat position switching mechanism is mounted on the frame, and the moving seat position The power output end of the switching mechanism is connected to the moving base, and the opening bag mechanism is mounted on the moving seat. The bag supply device can automatically feed the bag body, then open the bag mouth, and place the bag mouth portion of the bag body on the straw on the conveyor chain. In a specific solution, the bag storage mechanism includes a bag storage box and a push bag mechanism; the bag case is disposed on the frame in a horizontal direction, and the cross section of the bag box is matched with the bag body, and the front end of the bag box is set There is a bag opening (the inside of the bag opening is usually provided with a bag edge or a plurality of bag bumps); the push bag mechanism includes a push bag plate, a push bag rodless cylinder, a bag body fork, and a bag body shifting cylinder The lifting seat and the bag body lifting cylinder; the pushing bag plate is arranged in the bag box, the push bag rodless cylinder is mounted on the frame, and the slider of the push bag rodless cylinder is connected with the push bag plate; the bag body fork The lifting cylinder is arranged in a vertical direction, the cylinder body of the bag fork lifting cylinder is mounted on the frame, and the lifting seat is connected with the piston rod of the bag body lifting cylinder; the bag body shifting cylinder and the push bag rodless cylinder phase Parallelly, the cylinder body of the bag shifting cylinder is mounted on the lifting seat, and the bag body fork is connected with the piston rod of the bag body shifting cylinder. The direction of the above-mentioned push-pull rodless cylinder is consistent with the direction of the bag, and the push bag can be moved back and forth in the bag box under the driving of the slider of the push-barless cylinder; the push bag rodless cylinder can be set in the storage Below the bag box, it can also be placed above or on one side of the bag. In order to enable the lifting seat to be smoothly lifted, the bag fork lifting cylinder may be a double-shaft cylinder, or a guiding mechanism capable of guiding the lifting and lowering of the lifting seat may be provided on the frame (for example, a guiding rod is provided on the lifting seat, the guiding rod Parallel to the bag fork lift cylinder, a guide sleeve is arranged on the frame, and the guide rod is in the guide sleeve). In order to enable the bag fork to move smoothly, a guiding mechanism composed of a horizontal guiding rod and a horizontal guiding sleeve may be provided, wherein the horizontal guiding rod is parallel with the pocket shifting cylinder, and the horizontal guiding rod is mounted on the lifting seat, horizontal guiding The sleeve is connected to the pocket fork and the horizontal guide is in the horizontal guide sleeve. The push bag and the bag fork alternately push the bag in the bag to move toward the bag opening; first, the push bag without the rod cylinder drives the push bag to move forward, and pushes the bag forward; when pushing the bag When the position is set, a small number of bags are stored in the bag, and the piston rod of the bag fork lifting cylinder is extended to raise the lifting seat, and the upper end of the bag fork is inserted into the cavity of the bag box. Then, the piston rod of the bag shifting cylinder is extended, the bag fork is advanced, and the bag is pushed forward; then the slider of the bagless cylinder and the push bag are moved backward, and the alarm indicates that the bag is small; After the personnel fill the bag body with the bag body, press the reset switch, push the slider of the bagless rod cylinder and the push bag plate to move forward and push the bag forward; then the piston rod of the bag fork lift cylinder retracts, so that The lifting seat is lowered, the bag body fork is withdrawn from the cavity of the bag box, and then the piston rod of the bag body shifting cylinder is retracted to reset the bag body fork; In a specific design, the bottom of the bag storage box is provided with a strip-shaped opening extending forward and backward, and the upper end of the bag body fork can be inserted into the cavity of the bag box through the strip-shaped opening.

In a specific embodiment, the pick-and-place bag mechanism includes a position changing mechanism and a suction bag device; the suction bag device includes a vacuum suction cup and a suction cup seat, and the vacuum suction cup is disposed on the suction cup base; the position changing mechanism includes a rotating shaft, a telescopic cylinder, and a rotating shaft a driving mechanism, the rotating shaft is rotatably mounted on the frame, the cylinder of the telescopic cylinder is mounted on the rotating shaft, and the suction cup seat is fixedly mounted on the piston rod of the telescopic cylinder; the rotating shaft driving mechanism comprises a swinging cylinder, and the swinging cylinder is mounted on the frame, The power output end of the swing cylinder is drivingly connected to the rotating shaft. When the swinging cylinder is actuated, the rotating shaft, the telescopic cylinder, and the suction bag device (including the suction cup holder and the vacuum suction cup) can be rotated together. In the production process, under the driving of the swinging cylinder, the suction bag device can be in the position of the suction bag (ie, the position corresponding to the bag opening opening of the bag box) and the bag placing position (ie, the position corresponding to the bag conveying mechanism). The two positions are switched back and forth, and under the cooperation of the telescopic cylinders, the suction bag and the bag release work are completed, thereby transferring the bag body from the bag storage mechanism to the bag body conveying mechanism, and the specific process is as follows: First, the swinging cylinder action , the rotating shaft is rotated, the telescopic cylinder, the suction cup holder and the vacuum suction cup are also rotated upwards, the vacuum suction cup position corresponds to the bag opening port of the bag, and then the piston rod of the telescopic cylinder is extended, and the vacuum suction cup will be the front end of the bag body. Suction; then the piston rod of the telescopic cylinder contracts, the vacuum suction cup pulls the bag at the front end, the bag body is slightly deformed and taken out, and the remaining bag body in the bag box moves forward; then the swing cylinder reverses motion (ie Return position), the rotating shaft is rotated, the telescopic cylinder, the suction cup holder and the vacuum suction cup are also rotated downward, and the position of the vacuum suction cup corresponds to the bag conveying mechanism That is, the vacuum suction cup and the bag body are both above the bag conveying mechanism; then the vacuum suction cup releases the bag body (the piston rod of the telescopic cylinder can also be extended after the vacuum suction cup and the bag body reach above the bag conveying mechanism, and then the vacuum suction cup The bag body is released, and then the piston rod of the telescopic cylinder is contracted. The bag body is placed on the bag body transport mechanism to complete the process of taking the bag and putting the bag.

The above-mentioned bag storage mechanism and the bag-removing bag mechanism can also adopt the existing structure, such as the "bag-removing mechanism of a packaging machine" disclosed in the Chinese Utility Model Patent Specification CN201037052Y (wherein the bag-feeding bag-receiving mechanism is equivalent to the utility model) Pick and place bag mechanism).

In one embodiment, the bag conveying mechanism comprises a bag guide rail pair, a dial bag plate and a dial bag cylinder; the bag guide rail pair comprises two parallel bag guide rails, and the bag guide rail is mounted on the rack; The bag plate has a dial bag portion, and the bag bag portion is located between the two bag guide rails of the pair of bag guide rails; the dial bag cylinder and the bag guide rail pair are parallel, the cylinder of the dial bag cylinder is mounted on the frame, and the bag cylinder is mounted. The piston rod is connected to the dial plate. In order to enable the bag to move smoothly, in the preferred solution, the bag conveying mechanism further comprises two bag guides, two bag guide sleeves and a first cross bar; two bag guides and two dial plates One-to-one correspondence of the guide sleeves, the guide plate of the dial bag is in the guide sleeve of the dial bag; the guide bar of the dial bag is parallel with the pair of guide rails of the bag, the guide bush of the bag plate is arranged on the frame, and one end of the guide bar of the bag plate is The dial plate is connected, and the other end of the bag guide is connected with the first cross bar, and the first cross bar is connected with the piston rod of the bag cylinder (that is, the piston rod of the bag cylinder passes the first cross bar, the dial bag The plate guide is connected to the dial plate). Typically, the two dial plate guides are on either side of the dial pocket. The rear end of the bag guide rail corresponds to the position of the pick-and-place bag mechanism, and the front end of the bag guide rail corresponds to the position of the bag opening mechanism. The bag guide pair is generally perpendicular to the portion of the conveyor chain that corresponds to the bag supply, and the piston rod of the bag cylinder can face the conveyor chain or face away from the conveyor chain. The bag guide rail is centered, there is a gap between the two bag guide rails which are parallel to each other, the bag bag portion is in the gap, and the upper end of the bag bag portion is higher than the support surface of the bag guide rail, so that the bag bag is forwarded when the bag is forwarded The part can contact the rear end of the bag body; the left and right sides of the bag body on the upper side of the bag guide rail are respectively supported by the two bag guide rails, and the middle part of the bag body is suspended. During work, after the bag-removing mechanism puts the bag body to the rear end of the bag guide rail, the dial bag cylinder drives the dial bag plate to move from the back to the front along the bag guide rail, and the dial bag plate contacts the back end of the bag body and pushes the bag The body moves along the bag guide rail from the back to the front, and the bag body is sent to a position corresponding to the bag opening mechanism; then the bag cylinder drive dial bag plate moves backwards along the bag guide rail and is reset, ready to transport the next one. Bag body. When the bag body reaches the bag opening mechanism, the bag opening mechanism usually adopts a suction cup to suck the upper and lower sides of the bag body (the suction cup acts on the middle portion of the bag body near the bag mouth), and the bag body is up and down. A pulling force is simultaneously applied to both sides to open the pocket of the bag body.

In another embodiment, the bag conveying mechanism includes a bag bracket capable of receiving the bag body from the pick-and-place bag mechanism, and a bag bracket position switch capable of feeding the bag bracket to the bag opening mechanism The bag body bracket is disposed under the pick-and-place bag mechanism, the power output end of the bag body bracket position switching mechanism is connected with the bag body bracket, and the bag body bracket position switching mechanism is mounted on the moving seat. In a specific solution, the bag bracket position switching mechanism includes a bag bracket position switching cylinder, and the cylinder bracket position switching cylinder is mounted on the moving seat, and the bag bracket and the bag bracket position are switched. The piston rod of the cylinder is connected. In order to smoothly move the bag bracket, the bag conveying mechanism further includes a bracket frame and a bracket rail, the bag bracket is mounted on the bracket frame, the bracket rail is disposed on the moving seat, the bracket rail and the bag The brackets of the body brackets are parallel to each other, and the brackets are arranged on the bracket rails and slidably cooperate with the bracket rails, and the bracket brackets are connected with the piston rods of the bag bracket position switching cylinders. In another preferred solution, the bag conveying mechanism further includes a bracket frame, a bracket guide sleeve and a bracket guide rod, wherein the bag bracket is mounted on the bracket frame, and the bracket guide sleeve is disposed on the moving seat, the bracket The guide rod is in the bracket guide sleeve, the bracket guide rod is parallel with the bag bracket position switching cylinder, one end of the bracket guide rod is connected with the bracket bracket, and the other end of the bracket guide rod and the bag bracket position switch the cylinder Piston rod connection. Typically, the pocket bracket switching cylinder is perpendicular to the portion of the conveyor chain corresponding to the bag supply, and the pocket of the pocket bracket switching cylinder can be oriented toward the conveyor chain or away from the conveyor chain.

The bag bracket generally includes a bottom portion and a side wall, and the lower edge of the side wall is joined to the edge of the bottom portion, and the bottom portion and the side wall collectively define a cavity that matches the shape and size of the bag body. When the bag bracket and the bag body reach the bag opening mechanism, the bag opening mechanism usually adopts a suction cup to suck the upper and lower sides of the bag body (the suction cup corresponds to the bag mouth position), and the bag body is attached to the bag body. The lower side is simultaneously applied with a pulling force to open the pocket of the bag body. Therefore, in order to enable the suction cup on the bag opening mechanism to suck the lower side of the bag body, at least the front portion of the bottom of the bag body bracket should be provided. The notch allows the suction cup on the bag opening mechanism to suck the lower side of the bag through the notch. In a specific solution, the bottom of the bag bracket includes a left bracket and a right bracket, and a gap is formed between the left bracket and the right bracket, so that the left and right sides of the pocket on the pocket bracket are respectively left The bracket and the right bracket are held, and the middle portion of the bag is suspended.

In a specific embodiment, the bag opening mechanism includes a left gripper cylinder, a right gripper cylinder, an upper suction cup, an upper suction cup mounting plate, a lower suction cup and a lower suction cup mounting plate; a cylinder of the left gripper cylinder and a right gripper The cylinder block of the cylinder is mounted on the moving seat, the left gripper cylinder is disposed on the left side of the moving seat, and the right gripper cylinder is disposed on the right side of the moving seat; the left end of the upper suction cup mounting plate is connected with the upper pneumatic claw of the left gripper cylinder The right end is connected with the upper pneumatic claw of the right gripper cylinder, the left end of the lower suction cup mounting plate is connected with the lower pneumatic claw of the left gripper cylinder, and the right end is connected with the lower pneumatic claw of the right gripper cylinder; the upper suction cup is mounted on the upper suction cup mounting plate The lower suction cup is mounted on the lower suction cup mounting plate, and the upper suction cup corresponds to the lower suction cup position. The gripper cylinder is a cylinder commonly found in the art and has two pneumatic jaws that are relatively openable and closable. Generally, the upper suction cup and the lower suction cup have the same number and position one-to-one correspondence; one bag body may correspond to one upper suction cup and one lower suction cup, and may also correspond to a plurality of upper suction cups and a plurality of lower suction cups. Bag conveying mechanism After the bag body is transported to the bag opening mechanism, the upper pneumatic claw and the lower pneumatic claw of the left gripper cylinder are closed, and the upper pneumatic claw and the lower pneumatic claw of the right gripper cylinder are closed, and the upper suction cup mounting plate drives the upper suction cup downward. Moving, the upper suction cup sucks the outer wall of the upper side of the bag body, and the lower suction cup mounting plate drives the lower suction cup to move upward, and the lower suction cup sucks the outer wall of the lower side of the bag body; then the upper pneumatic claw and the lower pneumatic claw of the left gripper cylinder are opened. At the same time, the upper pneumatic claw and the lower pneumatic claw of the right gripper cylinder are opened. At this time, the upper suction cup mounting plate drives the upper suction cup to move upward, and the lower suction cup mounting plate drives the lower suction cup to move downward, and the upper suction cup and the lower suction cup respectively suck the bag. The outer wall of the upper and lower sides of the body, and the opening of the bag mouth of the bag body, completes the process of opening the bag mouth of the bag body once.

The above-mentioned bag opening mechanism can also be designed as an existing structure, as described in the "Opening bag opening device for a bag type filling and sealing machine" disclosed in the Chinese Patent Application Publication No. CN101070105A.

In one embodiment, the moving seat position switching mechanism includes a moving seat position switching cylinder, and the moving block position switching cylinder is mounted on the frame, and the moving seat is coupled to the piston rod of the moving seat position switching cylinder. In a preferred embodiment, the bag feeding mechanism further includes two moving seat guide sleeves, two moving seat guide bars and a second horizontal bar; the two moving seat guiding rods and the two moving seat guiding sleeves Correspondingly, the moving seat guide rod is in the moving seat guide sleeve; the moving seat guide rod is parallel to the moving seat position switching cylinder, the moving seat guide sleeve is disposed on the frame, and one end of the moving seat guide rod is connected with the moving seat, and the moving seat guide is moved. The other end of the rod is connected with the second cross bar, and the second cross bar is connected with the piston rod of the moving seat position switching cylinder (that is, the moving seat switches the piston rod of the cylinder through the moving seat guide, the second cross bar and the moving seat position) Connection); Usually, the two moving seat guides are respectively at the movable seat position switching cylinders on both sides. Typically, the moving seat position switching cylinder is perpendicular to the portion of the conveyor chain that corresponds to the bag supply, and the piston rod of the moving seat position switching cylinder can be oriented toward the conveyor chain or away from the conveyor chain. In another preferred embodiment, the bag feeding mechanism further includes a moving seat guide sleeve and a moving seat guide rod, the moving seat guide sleeve is disposed on the moving seat, the moving seat guide rod is disposed on the frame, and the moving seat guide rod is moved In the seat guide sleeve, the moving seat guide rod is parallel to the moving seat position switching cylinder. In another preferred embodiment, the bag feeding mechanism further comprises a moving seat rail, the moving seat rail is disposed on the frame, the moving seat rail is parallel to the moving seat position switching cylinder, and the moving seat is disposed on the moving seat rail and moves The seat rail is used for sliding fit.

The above-described moving seat position switching mechanism can also adopt an existing structure such as a chain drive, a gear/rack combination, or the like.

In a preferred embodiment, the heat sealing device comprises a heat sealing frame, at least one sealing head, a point sealing driving mechanism for driving the head to open and close, at least one heat sealing head and a heat sealing driving for driving the heat sealing head to open and close. The heat sealing frame is mounted on the frame, and the dot sealing head is arranged in front of the heat sealing head; the point sealing driving mechanism is mounted on the heat sealing frame, and the output power end of the sealing driving mechanism is connected with the point sealing head; the heat sealing driving The mechanism is mounted on the heat seal frame, and the output power end of the heat seal drive mechanism is connected to the heat seal head. When the straw is inserted into the opened pocket, the dot head is pressed up and down, and the straw is fixed to fix the straw to the mouth of the bag. At this time, the straw can be fixed to the mouth of the bag; then the sealed bag is transferred. The heat seal is heat sealed, and the joint between the straw and the bag is further reinforced at the heat seal head. The fixing and reinforcement of the straw are divided into two processes: point sealing and heat sealing. Obviously, the two processes shorten the time, solve the problem that the one-time heat sealing time is too long and affect the filling production progress, and the speed of the sealing bag is sealed. Fast, suitable for high-speed filling production line; In addition, when heat sealing the bag mouth, the joint between the straw and the bag mouth is further reinforced.

The above heat sealing head generally comprises upper and lower heat sealing heads and upper and lower heat sealing heads, and the upper heat sealing head and the lower heat sealing head are pressed together to complete heat sealing. The structure of the dot head is basically the same as that of the heat sealing head, including the upper and lower parts of the upper point head and the lower point head, except that the hot pressing area of the point head is small, and only the contact portion of the bag mouth and the straw is performed. Order. The heat sealing drive mechanism usually comprises two cylinders for lifting, the cylinders of the cylinders are mounted on the heat sealing frame, wherein the piston rod of one cylinder is connected with the upper heat sealing head, and the piston rod of the other cylinder is connected with the lower heat sealing head. The piston rods of the two cylinders are opposite in direction, and the piston rods of the two cylinders are simultaneously extended, so that the heat sealing head is pressed and the heat sealing is completed, and the piston rods of the two cylinders are simultaneously retracted, so that the heat sealing head is opened. The structure of the dot sealing drive mechanism and the connection with the dot sealing head are the same as those of the heat sealing driving mechanism.

In order to achieve a better heat sealing effect and further increase the production speed, it is preferable that the heat sealing device further comprises at least one second heat sealing head and a second heat sealing driving mechanism; the second heat sealing head is disposed behind the heat sealing head; The second heat sealing drive mechanism is mounted on the heat seal frame, and the output power end of the second heat seal drive mechanism is connected to the second heat seal head. The structure and connection of the second heat seal head and the second heat seal drive mechanism can be designed with reference to the heat seal head and the heat seal drive mechanism. A second heat sealing head is added behind the heat sealing head to further heat seal the first heat sealed bag body, so that the heat sealing effect is better, and the time of the first heat sealing can be shortened, thereby further increasing the production speed. In order to achieve a better heat sealing effect and further increase the production speed, it is further preferred that the heat sealing device further comprises at least one cold seal head and a cold seal drive mechanism; the cold seal head is disposed behind the heat seal head; and the cold seal drive mechanism is installed at On the heat seal frame, the output power end of the cold seal drive mechanism is connected to the cold seal head. The structure of the cold head is basically the same as that of the heat seal head. The difference is that the heating element is not provided in the cold head, but the cooling head is cooled by the coolant; the structure of the cold seal drive mechanism can be designed with reference to the heat seal drive mechanism. . The bag that has just been heat-sealed is not stable, is easily deformed or torn by force, cannot be filled immediately, and needs to wait for a long cooling time, which affects the production speed or causes the production line to be too long. By setting the cold head, the heat-sealed bag mouth is quickly cooled and shaped, which is more stable, and can be immediately filled to increase the production speed. In the case where the second heat seal head is provided, the cold seal head is disposed behind the second heat seal head.

Generally, the above-mentioned dot head, heat seal head, second heat seal head and cold seal head are provided in plurality and the same number, and multiple simultaneous heat seals can be realized. In one embodiment, the number of the above-described dot head, heat seal head, second heat seal head, and cold seal head is four.

Further preferably, in the case of providing a plurality of dot sealing heads, heat sealing heads, second heat sealing heads and cold sealing heads, each of the upper point sealing head, the lower point sealing head, the upper heat sealing head, the lower heat sealing head, and the upper The second heat sealing head, the lower second heat sealing head, the upper cold head and the lower cold head are all connected to one cylinder for independent driving, which is more advantageous for each point head, heat head, second heat head And the fine adjustment of the cold head, so that when the plurality of bags are point-sealed, heat-sealed and cold-sealed, each bag can be sealed, heat-sealed and cold-sealed, thereby fastening the straw to the bag mouth. , heat sealing effect is better.

In a preferred solution, the filling device includes a filling cylinder, a metering pump, an inlet valve, an outlet valve, a connecting member, a first pin, a first limiting member, a first snap ring, a second pin, and a second limit. And the second snap ring; the inlet valve and the outlet valve are connected to the lower end of the pumping chamber of the dosing pump; the push rod of the dosing pump is connected to the piston rod of the filling cylinder through the connecting member; the first end of the connecting member is provided with the first a groove, the other end of the connecting member is provided with a second groove, the first groove and the second groove are offset from each other; the end of the piston rod is in the first groove, and the end face of the end of the piston rod is first The bottom of the groove contacts, the first pin passes through the side wall of the first groove and the end of the piston rod, the first limiting member is disposed at one end of the first pin, and the other end of the first pin is provided with the first card slot The first snap ring is snapped into the first slot; the end of the push rod is in the second recess, the end surface of the end of the push rod is in contact with the bottom of the second recess, and the second pin passes through the second recess a side wall and an end of the push rod, the second limiting member is disposed at one end of the second pin, the second The other end of the nail is provided with a second slot, the second snap ring in the second card slot. The dosing pump generally includes a pump chamber, a piston and a push rod. The piston is in the pump chamber. The piston is connected to one end of the push rod. The push rod drives the piston to slide in the pump chamber. The amount of the pump depends on the stroke of the piston. When installing, the connector is sleeved at the end of the piston rod of the filling cylinder, so that the end of the piston rod of the filling cylinder is in the first groove, and then the first pin with the first limiting member is inserted, Passing the first pin through the side wall of the first groove and the end of the piston rod of the filling cylinder (a through hole is formed in a corresponding position of the side wall of the first groove and the end of the piston rod of the filling cylinder), and then Inserting the first snap ring into the first card slot to fix the piston rod and the connecting member of the filling cylinder; the mounting manner of the push rod and the connecting member is basically the same as the above, except that the push rod is first pulled up and inserted. Into the second groove. When disassembling, the piston rod of the filling cylinder is retracted, then the first snap ring and the second snap ring are pulled out, and the first pin is pulled out from the end provided with the first limiting member, and the second pin is provided. Pull out the second pin at one end of the limiting member, then lower the push rod, remove the connecting member, and then lift the push rod upward to pull the push rod of the dosing pump and the piston completely out of the pump chamber (because the connecting member is provided, When the push rod and the piston are completely pulled out of the pump chamber, the push rod does not contact the piston rod of the filling cylinder, and the piston and the pump chamber of the metering pump can be conveniently cleaned.

Preferably, the first groove and the second groove are offset from each other by an angle of 90 °.

For the purpose of easier disassembly, it is preferable that the first limiting member and the second limiting member are pull tabs. By setting the first limiting member and the second limiting member as the pull ring, in the case of releasing the snap ring, the first pin (second pin) can be pulled out by pulling the pull ring, and the pull ring not only limits the position. The role of the first pin (second pin) is more convenient to pull out. The first limiting member and the second limiting member may also be projections, and the projections are disposed in the outer circumferential direction of the first pin (second pin).

In order to achieve the purpose of facilitating filling, it is preferable that the potting device further includes a lifting mechanism; the liquid discharging valve is connected to the lower end of the metering pump through a hose, and the liquid discharging valve is connected to the output power end of the lifting mechanism. The lifting mechanism controls the lifting and lowering of the liquid discharging valve, so that the liquid discharging valve can move up and down, and it is convenient to be connected with the suction pipe for filling. The lifting mechanism can use a cylinder.

In a preferred embodiment, the bag-removing device includes a bag-removing plate, and the bag-removing plate is mounted on the frame, and the outer side of the bag-removing plate (ie, the side of the bag-removing plate facing away from the conveyor chain) has a bag-removing guide surface, and the bag-returning guide The lead faces are gradually moved away from the conveyor chain along the direction of travel of the conveyor chain. Usually the bag is set to hang Above the board, the bag guiding surface is matched with the straw on the bag. When the hanging plate conveys the packaging bag to a position corresponding to the starting end of the unloading bag, the straw of the packaging bag is on the outer side of the bag retreating plate, and the straw is in contact with the bag guiding surface; then the hanging plate and the bag travel along the conveying chain. The straw moves along the bag guiding surface, and the bag guiding guide applies an outward thrust to the straw, and gradually pushes the straw out from the opening of the hanging plate; when the hanging plate passes over the bag, the straw completely from the hanging plate The upper opening exits and the bag exits the conveyor chain and falls under the force of gravity.

In the invention, the double-line working mode is adopted, and the front line segment and the returning portion of the conveyor chain sequentially have a feeding station, a bag supply station, a heat sealing station, a filling station, a sealing station and a retreat. The bag station is provided with a feeding device, a bag feeding device, a heat sealing device, a filling device, a sealing device and a bag-removing device respectively at corresponding positions of the front row of the conveyor chain and the corresponding station of the returning segment. The hanging plate is hinged with the conveying chain, and the hanging plate is turned over by the cooperation of the first turning mechanism, the hanging plate slot and the second turning mechanism, so that the hanging plate is switched between the two states of the horizontal state and the vertical state. Thereby realizing the flipping of the straw and the packaging bag; performing two sets of feeding, bag feeding, heat sealing, filling, sealing and bag retracting on one conveying device (in the front and back sections of the conveyor chain respectively) On the basis of the above, not only the packaging bag production, material filling in one, but also the two sets of bag filling machine integrated, its occupied space is only slightly larger than a set of single-line bag filling machine, the structure is simple and compact, occupying Small in size, high efficiency in filling operation, saving labor, the manufacturing cost of the whole machine is much lower than that of the two single-line bag filling machines; and the flipping of the hanging plate can be realized by a simple mechanical structure, without the need for a complicated grasping and turning device. , the failure rate is low.

DRAWINGS

Figure 1 is a schematic view showing the overall structure of a preferred embodiment of the present invention;

Figure 2 is a schematic structural view of the conveying device of Figure 1;

Figure 3 is a partial enlarged view of a portion A in Figure 2;

Figure 4 is a partial enlarged view of a portion B of Figure 2;

Figure 5 is a schematic structural view of the feeding device of Figure 1;

Figure 6 is a partial enlarged view of a portion C of Figure 5;

Figure 7 is a schematic view of the feeding device and the conveying device;

Figure 8 is a schematic structural view of the bag supply device of Figure 1 (front view);

Figure 9 is a perspective view of the bag supply device of Figure 1 (not shown in the bag);

Figure 10 is a partial structural view of the bag body supply device of Figure 1 (including the bag body transport mechanism, the bag body feeding mechanism and the bag opening mechanism); Figure 11 is a plan view of Figure 10;

Figure 12 is a perspective view of Figure 10;

Figure 13 is a schematic structural view of the heat sealing device of Figure 1;

Figure 14 is a schematic structural view of the filling device of Figure 1;

Figure 15 is a schematic view showing the connection structure of the connecting member and the filling cylinder and the metering pump of Figure 14.

detailed description

As shown in Fig. 1, the sealed bag filling machine comprises a frame 1, a conveying device 2, two feeding devices 3, two bag feeding devices 4, two heat sealing devices 5, and two filling devices. 6. Two sealing devices 7 and two bag-removing devices 8, two feeding devices 3, two bag feeding devices 4, two heat sealing devices 5, two filling devices 6, and two sealing devices 7 ( The sealing device 7 includes a capping device 71, a capping device 72 and a capping device 73) and two bag retracting devices 8 are disposed on the frame 1.

Referring to Figures 1 and 2, the conveyor 2 includes a conveyor chain 21, a drive sprocket 22, a driven sprocket 23 and a main drive mechanism, wherein the drive sprocket 22, the driven sprocket 23 and the main drive mechanism are mounted on the frame In the first embodiment, the conveyor chain 21 is mounted on the drive sprocket 22 and the driven sprocket 23, and the drive sprocket 22 is drivingly coupled to the main drive mechanism. A plurality of hanging plates 12 are mounted on the conveyor chain 21 at equal intervals, one side of the hanging plate 12 and the conveying chain The strip 21 is hinged (this side of the hanging plate 12 is generally referred to as the inner side of the hanging plate), and the hanging plate 12 is provided with an opening 10 capable of accommodating the suction pipe 9, and the rear side of the opening 10 has a pipe portion 11 extending outwardly. The hinge 18 of the structure can make the hanging plate 12 in the horizontal state only flip upwards and cannot be turned down, and the maximum angle at which the hanging plate 12 is turned up is 90 degrees (the selection of the hinge 18 belongs to the conventional technical means in the art); In the traveling direction of the chain 21, the front row 2101 and the return section 2102 of the conveyor chain 21 have a feeding station 221, a bag supply station 222, a heat sealing station 223, a filling station 224, and a sealing machine, respectively. Position 225 and bag returning station 226, one of the feeding device 3, the bag feeding device 4, the heat sealing device 5, the filling device 6, the sealing device 7 and the bag unloading device 8 respectively and the forward section of the conveying chain 21 The feeding station 221, the bag supply station 222, the heat sealing station 223, the filling station 224, the sealing station 225 and the bag returning station 226 on the 2101 correspond to each other; another pipe feeding device 3, Bag supply device 4, heat sealing device 5, filling device 6, sealing device 7 and the bag returning device 8 and the feeding station 221 on the return section 2102 of the conveyor chain 21, the bag supply station 222, the heat sealing station 223, the filling station 224, the sealing station 225 and the bag returning bag The position of the station 226 corresponds. A first inverting mechanism capable of inverting the hanging plate 12 from a horizontal state to a vertical state is disposed between the feeding station 221 and the bag supply station 222; and between the heat sealing station 223 and the filling station 224 A second inverting mechanism capable of inverting the hanging plate 12 from a vertical state to a horizontal state; and a hanging plate slot 15 capable of holding the hanging plate 12 in a vertical state between the first inverting mechanism and the second inverting mechanism. The heat sealing station 223 corresponds to a length of the conveyor chain 21, and the beginning end of the heat sealing station 223 overlaps with the bag supply station 222.

Referring to FIG. 3, in the embodiment, the first inverting mechanism includes a first limiting block 13 having a first guiding curved surface 131, and the first guiding curved surface 131 is in contact with the lower surface of the hanging plate 12. The first guiding curved surface 131 is gradually twisted from the upward horizontal plane in the traveling direction of the conveying chain 21 toward the vertical surface of the conveying chain 21. The starting end and the end of the first guiding curved surface 131 satisfy the following conditions: When the hanging plate 12 reaches the starting end of the first guiding curved surface 131, the lower surface of the hanging plate 12 is located above the horizontal plane of the starting end of the first guiding curved surface 131; When reaching the end of the first guiding curved surface 131, the gap between the vertical surface of the end of the first guiding curved surface 131 and the conveying chain 21 can only allow the hanging plate 12 to pass in a vertical state, and the hanging plate 12 is located at the first guiding position. The inner side of the vertical face at the end of the curved surface 131.

Referring to FIG. 4, in the embodiment, the second inverting mechanism includes a second limiting block 14 having a second limiting edge 141, and the second limiting edge 141 is opposite to the lower surface of the hanging plate 12. With the contact fit, the second limit edge line 141 gradually moves away from the conveyor chain 21 in the traveling direction of the conveyor chain 21 and gradually decreases.

Referring to Fig. 2, the bag unloading device 8 includes a bag retracting plate 16 which is mounted on the frame 1, and the outer side of the bag retracting plate 16 (i.e., the side of the bag retracting plate facing away from the conveying chain) has a bag returning guide surface. 161, the bag returning guide surface 161 is gradually away from the conveying chain 21 in the traveling direction of the conveying chain 21. The bag returning plate 16 is disposed above the hanging plate 12, and the bag returning guiding surface 161 is engaged with the straw 9 on the packaging bag 17.

As shown in FIGS. 5-7, the feeding device 3 includes a vibrating plate 32, a feed pipe guide 33, a push tube cylinder 34, and a push tube guide 35, a vibrating plate 32, a feed pipe guide 33, a push tube cylinder 34, and a push tube guide. 35 are all mounted on the rack 1.

The rear end 331 of the feed pipe guide 33 is higher than the front end 332 of the feed pipe guide 33, and the discharge port 36 of the vibrating plate 32 is connected to the rear end 331 of the feed pipe guide 33, and the push pipe guide 35 is connected to the front end 332 of the feed pipe guide 33. The push tube guide 35 gradually approaches the transport chain 21 in the traveling direction of the transport chain 21. The push tube guide 35 is gradually brought closer to the transport chain 21 in the traveling direction of the transport chain 21 (as indicated by the arrow in Fig. 7). The width of the dial portion 11 of the hanging plate 12 should be such that it can just move a straw 9 each time (typically the width of the dial portion 11 is equal to or slightly smaller than the width of the push tube guide 35). The width of the dial portion 11 of the hanging plate 12 gradually decreases from front to back. In this embodiment, the push tube guide 35 is a linear guide rail.

The front portion of the feed pipe guide 33 is a linear feed pipe guide section 333. In the present embodiment, the linear feed pipe guide section 333 is disposed in the horizontal direction, and the linear feed pipe guide section 333 is perpendicular to the corresponding portion of the conveyor chain 21. The push tube cylinder 34 is disposed above the feed tube guide 33 (in the present embodiment, the push tube cylinder 34 is disposed directly above the linear feed tube guide section 333), and the push tube cylinder 34 is parallel to the linear feed tube guide section 333. The cylinder 341 of the push cylinder 34 is mounted on the frame 1, and the piston rod 342 of the push cylinder 34 is provided with a one-way claw 312 capable of sliding the suction pipe 9 on the linear feed rail section 333. In this embodiment, the connecting rod 313 is mounted on the piston rod 342 of the push cylinder 34. The front side of the connecting plate 313 is provided with a one-way claw seat 314. The upper end of the one-way claw 312 is rotatably mounted on the one-way claw seat 314. The lower end of the one-way claw 312 is smaller than the material through hole 91 of the suction pipe 9, and the lower end of the one-way claw 312 can be inserted into the material through hole 91 of the suction pipe 9; the connecting plate 313 is mounted with the guide rod 315. The guide rod 315 is parallel to the push tube cylinder 34. The frame 1 is provided with a guide sleeve 316, and the guide rod 315 is in the guide sleeve 316.

As shown in FIG. 8 to FIG. 9, the bag body supply device 4 includes a bag storage mechanism, a bag-removing bag mechanism, and a bag body conveying mechanism (the bag body conveying mechanism can receive the bag body from the pick-and-place bag mechanism and send the bag body to the bag body) Bag mouth mechanism), bag opening mechanism and bag body feeding mechanism.

The bag storage mechanism includes a bag storage box 42 and a push bag mechanism; the bag case 42 is disposed on the frame 1 in a horizontal direction, the cross section of the bag case 42 is matched with the bag body, and the front end of the bag case 42 is provided with a bag Port 43 (the inside of the bag opening 43 may be provided with a bag edge or a plurality of bag bumps); the push bag mechanism comprises a push bag 44, a push bag rodless cylinder 45, a bag fork 46, a bag fork The translation cylinder 47, the lifting base 48 and the bag fork lifting cylinder 49; the push bag 44 is disposed in the bag casing 42, the push bag rodless cylinder 45 is mounted on the frame 1, and the slider of the bagless cylinder 45 is pushed. The 451 is connected to the push bag 44; the bag fork lift cylinder 49 is disposed in the vertical direction, and the cylinder 491 of the bag fork lift cylinder 49 is mounted on the frame 1, and the lift block 48 and the bag fork lift cylinder 49 The piston rod shifting cylinder 492 is connected; the bag body shifting cylinder 47 is parallel to the push bag rodless cylinder 45, and the cylinder block 471 of the bag body shifting translation cylinder 47 is mounted on the lifting seat 48, and the bag body shifting fork 46 and the bag body are dialed. The piston rod 472 of the fork translation cylinder 47 is connected. The direction of the push bag rodless cylinder 45 is the same as the direction of the bag storage box 42, and the push bag 4 can be moved back and forth in the bag box 42 under the driving of the slider 451 of the push bag rodless cylinder 45; The push bag rodless cylinder 45 is disposed below the bag case 42. The bag fork lift cylinder 49 uses a two-shaft cylinder. The push bag mechanism further includes a guiding mechanism composed of a horizontal guiding rod 410 and a horizontal guiding sleeve 411, wherein the horizontal guiding rod 410 is parallel with the bag body shifting cylinder 47, and the horizontal guiding rod 410 is mounted on the lifting seat 48, the horizontal guiding sleeve The 411 is coupled to the pocket fork 46 and the horizontal guide 410 is in the horizontal guide sleeve 411. In the specific design, the bottom of the bag holder 42 is provided with a strip-shaped opening extending forward and backward, and the upper end of the bag body fork 46 can be inserted into the cavity of the bag case 42 through the strip opening.

The pick and place bag mechanism comprises a position changing mechanism and a suction bag device; the bag suction device comprises a vacuum suction cup 412 and a suction cup holder 413, and the vacuum suction cup 412 is disposed on the suction cup holder 413; the position changing mechanism comprises a rotating shaft 414, a telescopic cylinder 415 and a rotating shaft rotating driving mechanism The rotating shaft 414 is rotatably mounted on the frame 1. The cylinder 4151 of the telescopic cylinder 415 is mounted on the rotating shaft 414. The suction cup seat 413 is fixedly mounted on the piston rod 4152 of the telescopic cylinder 415. The rotating shaft driving mechanism includes a swinging cylinder 416, which swings. The cylinder 416 is mounted on the frame 1, and the power output 4161 of the swing cylinder 416 is drivingly coupled to the rotating shaft 414.

Referring to Figures 10-12, the bag conveying mechanism includes a pair of bag guide rails, a bag pad 417 and a bag cylinder 418; the bag guide pair includes two mutually parallel bag guides 419, and the bag guides 419 are mounted on the frame. 1; the dial board 417 has a dial pocket portion 420, the dial pocket portion 420 is between the two bag guide rails 419 of the pair of bag guide rails; the dial bag cylinder 418 is parallel with the pair of bag guide rails (ie, the dial bag cylinder 418 and The bag guide rails 419 are parallel, and the cylinder block 4181 of the dial bag cylinder 418 is mounted on the frame 1. The bag body conveying mechanism further comprises two dialing plate guide rods 421, two dialing bag guide sleeves 422 and a first cross bar 423; the two dialing plate guiding rods 421 correspond to the two dialing plate guiding sleeves 422, and the dialing plate The guide bar 421 is located in the bag guide bushing 422; the bag guide bar 421 is parallel to the bag guide rail pair (ie, the dial bag cylinder 418 is parallel to the bag guide rail 419), and the bag guide bushing 422 is disposed on the frame. 1 , the dial plate guide 421 is connected to the dial plate 417, the other end of the bag guide 421 is connected to the first cross bar 423, and the first cross bar 423 is connected to the piston rod 4182 of the dial cylinder 418 ( That is, the piston rod 4182 of the dial cylinder 418 is connected to the dial plate 417 via the first cross bar 423 and the dial plate guide 421). The two dial plate guides 421 are respectively located on both sides of the dial bag cylinder 417. The rear end of the pair of guide rails corresponds to the position of the pick-and-place bag mechanism, and the front end of the pair of bag guide rails corresponds to the position of the bag opening mechanism. The pair of bag guide rails are perpendicular to the portion of the conveyor chain corresponding to the bag supply means. In this embodiment, the piston rod 4182 of the bag cylinder 418 faces away from the conveyor chain. The bag guide rail is centered, there is a gap between the two bag guide rails 419 which are parallel to each other, the bag pocket portion 420 is in the gap, and the upper end of the dial bag portion 420 is higher than the support surface of the bag guide rail 419, so that the dial bag plate When the 417 is forward, the bag portion 420 can contact the rear end of the bag body; the left and right sides of the bag body on the upper side of the bag guide rail are respectively supported by the two bag guide rails 419, and the middle portion of the bag body is suspended.

Referring to FIGS. 10-12, the bag feeding mechanism includes a moving seat 424 and a moving seat position switching mechanism. The moving seat position switching mechanism is mounted on the frame 1, and the power output end of the moving seat position switching mechanism is connected to the moving seat 424. In the present embodiment, the moving seat position switching mechanism includes a moving seat position switching cylinder 425, and the cylinder 4251 of the moving seat position switching cylinder 425 is mounted on the frame 1. The bag feeding mechanism further includes two moving seat guide sleeves 426, two moving seat guide bars 427 and a second horizontal bar 428; the two moving seat guiding rods 427 correspond to the two moving seat guiding sleeves 426, and the moving seat guiding rods 427 are at Moving the guide sleeve 426; the movable seat guide 427 is parallel to the moving seat position switching cylinder 425, and moving the seat guide sleeve The 426 is disposed on the frame 1, the movable seat guide 427 is connected to the movable seat 424, the other end of the movable seat guide 427 is connected to the second cross bar 428, and the second cross bar 428 and the movable seat position switch the piston of the cylinder 425. The rod 4252 is connected (that is, the moving seat 424 is connected to the piston rod 4252 of the moving seat position switching cylinder 425 by the moving seat guide 427 and the second cross bar 428); the two moving seat guides 427 are respectively in the moving seat position switching cylinder Both sides of the 425. The moving seat position switching cylinder 425 is perpendicular to a portion of the conveyor chain corresponding to the bag supply device, and the piston rod 4252 of the moving seat position switching cylinder 425 faces the conveying chain.

Referring to FIGS. 10-12, the bag opening mechanism includes a left gripper cylinder 429, a right gripper cylinder 430, an upper suction cup 431, an upper suction cup mounting plate 432, a lower suction cup 433, and a lower suction cup mounting plate 434; the left gripper cylinder 429 The cylinder block 4291 and the cylinder block 4301 of the right gripper cylinder 430 are both mounted on the movable seat 424, the left gripper cylinder 429 is disposed on the left side of the movable seat 424, and the right gripper cylinder 430 is disposed on the right side of the movable seat 424; The left end of the suction cup mounting plate 432 is connected to the upper pneumatic claw 4292 of the left gripper cylinder 429, the right end is connected to the upper pneumatic claw 4302 of the right gripper cylinder 430, and the left end of the lower suction cup mounting plate 434 is connected to the lower pneumatic claw 4293 of the left gripper cylinder 429. The right end is connected to the lower pneumatic claw 4303 of the right gripper cylinder 430; the upper suction cup 431 is mounted on the upper suction cup mounting plate 432, the lower suction cup 433 is mounted on the lower suction cup mounting plate 434, and the upper suction cup 431 corresponds to the lower suction cup 433. The upper suction cup 431 and the lower suction cup 433 have the same number and position one-to-one correspondence; one bag body may correspond to one upper suction cup 431 and one lower suction cup 433, and may also correspond to a plurality of upper suction cups 431 and a plurality of lower suction cups 433.

In this embodiment, a four-way parallel supply bag body is used, wherein the bag storage box 42, the push bag plate 44, the push bag rodless cylinder 45, the bag body shifting fork 46, the bag body shifting cylinder 47, the lifting seat 48, and the bag body dialing The fork lift cylinder 49, the telescopic cylinder 415, the suction bag device, and the bag guide rail are respectively provided with four, and the upper suction cup 431 and the lower suction cup 433 are provided with four groups, a rotating shaft 414, a swinging cylinder 416, a dialing cylinder 418, and a moving seat 424. The moving seat position switching cylinder 425, the left gripper cylinder 429, the right gripper cylinder 430, the upper suction cup mounting plate 432, and the lower suction cup mounting plate 434 are shared by four paths; the four paths share one dialing board 417, and the dialing board 417 has Four dial pockets 420.

As shown in FIG. 13, the heat sealing device 5 includes a heat sealing frame 51, four dot sealing heads 52, four heat sealing heads 53, four second heat sealing heads 54, four cold sealing heads 55, and a dot sealing driving mechanism. The heat seal drive mechanism, the second heat seal drive mechanism, and the cold seal drive mechanism, the dot seal head 52, the heat seal head 53, the second heat seal head 54, and the cold seal head 55 are sequentially disposed along the traveling direction of the conveyor chain. The heat seal frame 51 is mounted on the frame 1.

Each of the dot seals 52 includes an upper dot seal 55211 and a lower dot seal 212; each heat seal head 53 includes an upper heat seal head 5311 and a lower heat seal head 5312; each second heat seal head 54 includes a second Heat seal head 5411 and lower second heat seal head 5412; each cold seal head 55 includes an upper cold seal head 5511 and a lower cold seal head 5512.

The dot seal drive mechanism includes four pairs of dot seal cylinders 56, the heat seal drive mechanism includes four pairs of heat seal cylinders 57, the second heat seal drive mechanism includes four pairs of second heat seal cylinders 58, and the cold seal drive mechanism includes four pairs of cold seals The cylinders 59, the cylinders of each cylinder are mounted on the heat seal frame 51, and the piston rods of each pair of cylinders operate in opposite directions. In each pair of dot sealing cylinders 56, one of the piston rods 5611 of the point sealing cylinder 56 is connected to the upper point head 5211, and the piston rod 5612 of the other point sealing cylinder 56 is connected to the lower point head 5212; In the heat-sealed cylinder 57, the piston rod 5711 of one heat-sealed cylinder 57 is connected to the upper heat seal head 5311, and the piston rod 5712 of the other heat-sealed cylinder 57 is connected to the lower heat seal head 5312; in each pair of the second heat-cylinder cylinder 58, one of the piston rods 5811 of the second heat-sealed cylinder 58 is connected to the upper second heat seal head 5411, and the piston rod 5812 of the other second heat-sealed cylinder 58 is connected to the lower second heat seal head 5412; In the cold seal cylinder 59, the piston rod 5911 of one of the cold seal cylinders 59 is connected to the upper cold seal 5511, and the piston rod 5912 of the other cold seal cylinder 59 is connected to the lower cold seal 5512.

As shown in FIG. 14, the filling device 6 includes a filling cylinder 61, a metering pump 62, an inlet valve 63, an outlet valve 64, a connecting member 68, a first pin 69, a first limiting member 610, and a first retaining ring. 611, the second pin 612, the second limiting member 613 and the second retaining ring 614, the inlet valve 63 and the outlet valve 64 are both connected to the lower end of the pump chamber 65 of the metering pump 62, and the push rod 66 of the metering pump 62 passes The connecting member 68 is connected to the piston rod 67 of the filling cylinder 61. The cylinder block 611, the metering pump 62, and the inlet valve 63 of the filling cylinder 61 are all mounted on the frame 1.

Referring to Figure 15, the first end of the connecting member 68 is provided with a first recess 615, and the other end of the connecting member 68 is provided with a second recess 616, the first recess 615 and the second recess 616 are offset from each other by an angle of 90 °; The end of the piston rod 67 is in the first groove 615, and the end face of the end of the piston rod 67 is in contact with the bottom of the first groove 615, and the first pin 69 passes through the side wall of the first groove 615 and the piston rod 67. End, first limiting member 610 The first pin 69 is disposed at one end of the first pin 69. The other end of the first pin 69 is provided with a first card slot 617. The first snap ring card 611 is connected to the first slot 617. The end of the push rod 66 is in the second groove. 616, the end surface of the end of the push rod 66 is in contact with the bottom of the second recess 616, the second pin 612 passes through the side wall of the second recess 616 and the end of the push rod 66, and the second limiting member 613 is disposed at One end of the second pin 612, the other end of the second pin 612 is provided with a second card slot 618, and the second snap ring card 614 is connected to the second card slot 618. The first limiting member 610 and the second limiting member 613 are pull tabs.

The filling device 6 further includes a lifting cylinder 619 on which the cylinder 6191 of the lifting cylinder 619 is mounted; the liquid outlet valve 64 is connected to the lower end of the metering pump 62 via the hose 620, and the piston of the outlet valve 64 and the lifting cylinder 619 The rod 6192 is connected (in the present embodiment, four channels are simultaneously filled, and the outlet valves 64 of the four filling devices are all mounted on the lifting frame 621, and the lifting frame 621 is connected to the piston rod 6192 of the lifting cylinder 619).

The liquid inlet valve 63 includes an inlet valve seat 6301, an inlet valve core 6302, an inlet cylinder 6303, a piston rod 6304 of the inlet cylinder 6303 is connected to the inlet valve core 6302, and an outlet valve 64 includes an outlet valve seat 6401. The liquid valve core 6402, the liquid discharge cylinder 6403, and the piston rod 6404 of the liquid discharge cylinder 6403 are connected to the liquid discharge valve core 6402.

The following is a brief description of the working principle of this sealed bag filling machine:

Under the driving of the main driving mechanism and the driving sprocket 22, the conveying chain 21 circulates. On the front row 2101 of the conveying chain 21, the hanging plate 12 sequentially reaches the feeding station 221 on the front section 2101 of the conveying chain 21, The bag supply station 222, the heat sealing station 223, the filling station 224, the sealing station 225 and the bag returning station 226 sequentially complete the feeding pipe, the bag supply, and the heat sealing on the front section 2101 of the conveying chain 21. , filling, sealing and bag returning; at the feeding station 221, the hanging plate 12 is in a horizontal state, the feeding device 3 sends the straw 9 into the opening 10 of the hanging plate 12, and the straw 10 is hung on the hanging plate 12 And placed in a vertical direction; then the first limiting block 13 disposed between the feeding station 221 and the bag supply station 222 flips the hanging plate 12 from a horizontal state to a vertical state, so that the straw 12 is horizontal Positioning, then the hanging plate 12 is restrained by the hanging plate slot 15, ensuring that the hanging plate 12 remains in the vertical state during the bag feeding process and the heat sealing process; then the bag feeding device 4 sends the bag to the straw 9 corresponding position, and immediately performed by the heat sealing device 5 Sealing, connecting the bag body and the straw 9 to form the packaging bag 17; then the hanging plate 12 leaves the hanging plate slot 15 and is disposed by the second limiting block 14 between the heat sealing station 223 and the filling station 224. Turning the hanging plate 12 from the vertical state to the horizontal state, the straw 9 and the bag body are placed in the vertical direction, and the suction pipe 9 is opened upward; then the bag 17 is filled by the filling device 6; after the filling is completed, In the sealing station 225, the sealing device 7 seals the straw 9; when the packaging bag 17 containing the material reaches the bag returning station 226, the bag unloading device 8 removes the bag 17 containing the material from the hanging plate 12. , the process of bag making, filling, sealing, etc. on the front section 2101 of the conveyor chain 21 is completed; after the bag unloading process on the front section 2101 of the conveyor chain 21 is completed, the empty hanging plate 12 is in a horizontal state and follows the conveyor chain The travel of 21 enters the return section 2102 of the conveyor chain 21, and sequentially reaches the feeding station 221 on the return section 2102 of the conveyor chain 21, the bag supply station 222, the heat sealing station 223, the filling station 224, Sealing station 225 and bag returning station 226, in order The conveying pipe, the bag supply, the heat sealing, the filling, the sealing and the bag returning process on the returning section 2102 of the conveying chain 21, the feeding pipe, the bag body supply, the heat sealing and the filling on the conveying chain 21 returning section 2102 The steps of sealing and unpacking are the same as the forward section 2101 of the conveyor chain 21; after the bag returning process on the return section 2102 of the conveyor chain 21 is completed, the empty hanging board 12 is in a horizontal state and continues to the conveyor chain 21 The feeding station on the preceding section 2101, followed by the next round of bag making, filling, sealing and the like, is cycled.

The specific process of each process is as follows:

(1) Working principle of the feeding device 3:

The vibrating plate 32 is continuously vibrated, the suction pipe 9 in the vibrating plate 32 is trimmed, the position of the suction pipe 9 is adjusted, and the suction pipe 9 is continuously conveyed to the outlet pipe 36; then the suction pipe 9 is removed from the outlet port 36 from the vibration plate 32, and Entering the feeding guide rail 33, the suction pipe 9 on the feeding pipe guide 33 faces in the same direction (the nozzle segment faces upward and the connecting segment faces downward); the suction pipe 9 on the feeding pipe guide 33 is under the action of gravity, and the self-feeding pipe guide rear end 331 slides toward the front end 332 of the feed pipe guide to reach the linear feed pipe guide section 333;

Under the driving of the main drive mechanism, the conveyor chain 21 travels and drives the hanging plate 12 to travel; meanwhile, under the driving of the push cylinder 34, the one-way claw 312 pushes the suction pipe 9 on the linear feed pipe rail section 333 to make the straw 9 moves along the linear feed tube rail segment 333 from the back to the front, and the suction pipe at the foremost end of the feed pipe guide 33 is at the connection portion 317 of the feed pipe guide 33 and the push pipe guide 35; when the hitch plate 12 reaches the connection portion 317 corresponding thereto In position, the opening 10 on the hanging plate 12 is blocked by the inner side wall 351 of the push tube guide 35, and the dial portion 311 is in contact with the suction tube 9; The rear hanging plate 12 continues to move forward (above the push tube guide 35 when the hanging plate 12 moves), and the suction pipe 9 at the foremost end of the feeding pipe guide 33 is sent into the push tube guide 35, and the suction pipe 9 is moved along the push tube guide 35. During the movement of the suction pipe 9 along the push tube guide 35, under the action of the outer side wall 352 of the push tube guide 35, the suction tube 9 is gradually inserted into the opening 10; when the suction tube 9 leaves the push tube guide 35, the suction tube 9 has been completely fed. In the opening 10, the straw 9 is hung on the hanging plate 12;

When the hanging plate 12 feeds the suction pipe 9 at the foremost end of the feeding pipe guide 13 into the push pipe guide 35 and drives it to move along the push pipe guide 35, the next suction pipe 9 and the pipe portion 311 are pushed by the one-way claw 312. The side contacts are in contact with each other and are smoothly slid into the connecting portion 317; after the hanging plate 12 passes over the position corresponding to the connecting portion 317, the one-way claw 312 feeds the next suction pipe 9 on the pipe guide 33 The connecting portion 317, the next hanging plate 12 reaches a position corresponding to the above-described connecting portion 317, and then the pipe feeding operation of the next pipette 9 is performed.

The push cylinder 34 and the one-way claw 312 operate in the following manner: When the piston rod 342 of the push cylinder 34 is contracted rearward, the connecting plate 313 and the one-way claw 312 move backward, because the one-way claw 312 hits the suction pipe 9 It is possible to swing forward, so that the suction pipe 9 does not hinder the movement of the single connecting plate 313 and the claw 312; and when the piston rod 342 of the push cylinder 34 projects forward, the lower end of the one-way claw 312 is inserted into a suction pipe 9. In the material through hole 391 and swinging backward, when the rear side of the one-way claw 312 is in contact with the lower end of the connecting plate 313, the one-way claw 312 can no longer swing backward due to the blocking of the lower end of the connecting plate 313. The pawl 312, driven by the push cylinder 34, pushes the suction pipe 9 in front of the one-way claw 312 on the linear feed pipe rail section 333 to move forward from the rear to the front of the linear feed pipe rail section 333.

The piston rod 342 of the push cylinder 34 can push a plurality of suction pipes 9 each time, and push the plurality of suction pipes 9 one by one to the connection portion 317 of the feed pipe guide 33 and the push pipe guide 35; the piston rod 342 of the push cylinder 34 is once During the forward extension, the stroke of the piston rod 342 of the push cylinder 34 determines the distance that the suction pipe 9 that it pushes can advance, thereby determining that the piston rod 342 of the push cylinder 34 is extended forward. The number of suction pipes 9 pushed to the above-described connecting portion 317 during the process. Assuming that the center distance between the adjacent two suction pipes 9 in the direction of the feed rail 33 is L, and the stroke of the piston rod 342 of the push cylinder 34 is N times L, the piston rod 342 of the push cylinder 34 is extended forward once. In the process, the N suction pipes 9 can be pushed to the connecting portion 317. In this embodiment, the conveying chain 21 runs in a stepwise manner, and each time the conveying chain 21 advances, there are N hanging plates 12 crossing the connecting portion 317, correspondingly The piston rod 342 of the push cylinder 34 is actuated once, and the N suction pipes 9 are pushed to the connecting portion 317. Thus, each time the feeding device completes one operation cycle, N suction pipes 9 can be transported to the conveying device, which is suitable for N-side side by side. At the same time, the situation of making bags.

(2) When the hanging plate 12 reaches the first limiting block 13, the lower surface of the hanging plate 12 is kept in contact with the first guiding curved surface 131 during the traveling with the conveying chain 21, and therefore, the hanging plate 12 is The position during the traveling is determined by the first guiding curved surface 131; as the conveying chain 21 travels, the hanging plate 12 advances along the first guiding curved surface 131, and the first guiding curved surface 131 applies lifting force and orientation to the hanging plate 12 The thrust of the chain 21, the hanging plate 12 is gradually turned upwards until the hanging plate 12 is in a vertical state;

After the hanging plate 12 is turned to the vertical state, the outer side of the hanging plate 12 is at the uppermost end of the hanging plate 12. When the hanging plate 12 leaves the first limiting block 13, the outer side of the hanging plate 12 is inserted into the hanging plate slot 15 With the travel of the conveyor chain 21, the hanging plate 12 travels along the hanging plate slot 15 and remains in a vertical state, so that the hanging plate 12 is restrained by the hanging plate slot 15 to ensure the supply process and heat in the bag body. The hanging plate 12 is kept in a vertical state during the sealing process.

(3) Working principle of the bag supply device 4:

(3 - 1) bag storage mechanism: the push bag 44 and the bag fork 46 alternately push the bag in the bag 42 to move toward the bag opening 43; first, the push bag rodless cylinder 45 drives the slider 451 and pushes The bag panel 44 moves forward and pushes the bag forward; when the push bag 44 advances to the set position, a small number of pockets are stored in the pocket 42 and the piston rod 492 of the pocket lift cylinder 49 is now closed. Extending, the lifting seat 48 is raised, the upper end of the bag body shifting fork 46 is inserted into the cavity of the bag pocket 42, and then the piston rod 472 of the bag body shifting cylinder 47 is extended to advance the bag body fork 46. Pushing the bag forward; then pushing the slider 451 of the bagless cylinder 45 and the push bag 44 to move backward, and alarming to indicate that there are fewer bags; the operator goes to the bag box

42 After filling the bag body, press the reset switch, push the slider 451 of the bagless rodless cylinder 45 and the push bag plate 44 to move forward and push the bag forward; then the bag body dials The piston rod 492 of the fork lift cylinder 49 is retracted, the lifting seat 48 is lowered, the bag body shifting fork 46 is withdrawn from the cavity of the bag storage box 42, and then the piston rod 472 of the bag body shifting cylinder 47 is retracted, so that the bag body is dialed. The fork 46 is reset; this cycle.

(3 - 2 ) Pick and place bag mechanism: Under the driving of the swinging cylinder 416, the bag suction device can be in the position of the suction bag (i.e., the position corresponding to the bag opening opening 43 of the bag case 42) and the bag placing position (i.e., The corresponding position of the bag conveying mechanism) is switched back and forth between the two positions, and under the cooperation of the telescopic cylinder 415, the suction bag and the bag discharging work are completed, thereby transferring the bag body from the bag storing mechanism to the bag body conveying mechanism. The specific process is as follows: First, the swinging cylinder 416 acts to drive the rotating shaft 414 to rotate, and the telescopic cylinder 415, the suction cup base 413 and the vacuum chuck 412 also rotate upward, and the position of the vacuum chuck 412 corresponds to the bag opening 43 of the bag case 42. Then, the piston rod 4152 of the telescopic cylinder 415 is extended, and the vacuum suction cup 412 sucks the bag at the foremost end; then the piston rod 4152 of the telescopic cylinder 415 is contracted, and the vacuum suction cup 412 pulls the bag at the foremost end, and the bag body is slightly deformed. And taken out, the remaining bag body in the bag box 42 moves forward; then the swinging cylinder 416 reverses (ie, returns), drives the rotating shaft 414 to rotate, the telescopic cylinder 415, the suction cup 413 and the vacuum chuck 412 are also rotated downward, and the position of the vacuum chuck 412 corresponds to the bag conveying mechanism (the position of the vacuum chuck 412 corresponds to the rear end of the pair of bag guide rails), that is, the vacuum chuck 412 and the bag body are both It is above the bag conveying mechanism (the vacuum cup 412 and the bag are both above the rear end of the bag guide rail); then the vacuum cup 412 releases the bag body, and the bag body is placed on the bag body transport mechanism (the bag body is in the bag guide rail pair) On the back end, complete the process of taking the bag and putting the bag.

(3—3) Bag body conveying mechanism: When working, the bag body is placed to the rear end of the bag guide rail, and the piston rod 4182 of the bag cylinder 418 is contracted, and the dial bag plate 417 is driven along the bag guide 419. Moving from back to front, the bag portion 420 of the bag pad 417 is in contact with the rear end of the bag body and pushes the bag body to move from the back to the front along the bag guide rail, and the bag body is sent to correspond to the bag opening mechanism. Position; then the piston rod 4182 of the bag cylinder 418 is extended, and the driving dial plate 417 is moved backward and rearward along the bag guide rail, ready to transport the next bag body.

(3-4) The opening bag mechanism: After the bag conveying mechanism conveys the bag body to the bag opening mechanism, the upper pneumatic claw 4292 and the lower pneumatic claw 4293 of the left gripper cylinder 429 are closed, and at the same time, the right gripper cylinder 430 is closed. The upper claw plate 4302 and the lower pneumatic claw 4303 are closed. At this time, the upper suction cup mounting plate 432 drives the upper suction cup 431 to move downward, the upper suction cup 431 sucks the outer wall of the upper side of the bag body, and the lower suction cup mounting plate 434 drives the lower suction cup 433 to move upward. The lower suction cup 433 sucks the outer wall of the lower side of the bag body; then the upper pneumatic claw 4292 and the lower pneumatic claw 4293 of the left gripper cylinder 429 are opened, while the upper pneumatic claw 4302 and the lower pneumatic claw 4303 of the right gripper cylinder 430 are opened. At this time, the upper suction cup mounting plate 432 drives the upper suction cup 431 to move upward, and the lower suction cup mounting plate 434 drives the lower suction cup 433 to move downward. The upper suction cup 431 and the lower suction cup 433 respectively suck the outer wall of the upper and lower sides of the bag body, and the bag is The bag opening of the body is opened, and the process of opening the bag mouth is completed once.

(3 -5) bag feeding mechanism: After the bag opening mechanism opens the bag opening of the bag body, the piston rod 4252 of the moving seat position switching cylinder 425 protrudes, the second cross bar 428, the moving seat guide bar 427, The moving seat 424, the opening bag mechanism and the opened bag body move together toward the conveying chain, and the bag mouth of the bag body is sleeved on the connecting section of the straw on the conveying chain; then the connecting section of the straw is sealed by the heat sealing device The bag body is connected to the bag mouth, and the upper suction cup 431 and the lower suction cup 433 release the bag body; then the piston rod 4252 of the moving seat position switching cylinder 425 is contracted, so that the second cross bar 428, the moving seat guide bar 427, the moving seat 424 and The bag opening mechanism is reset, the bag opening mechanism is ready to open the bag body opening next time, and the bag body feeding mechanism is ready to perform the next operation of the bag body bag over the connecting portion of the straw.

(4) Working principle of heat sealing device 5: When the heat sealing device is in operation, the piston rods of the four pairs (8) of the point-sealing cylinders 56 are simultaneously extended, and the four point heads 52 are pressed together to complete the sealing of the suction pipe 9, and the suction pipe 9 is fixed to the bag mouth of the bag body. Then, the piston rods of the four pairs (8) of the point-sealing cylinders 56 are simultaneously retracted, the four point heads 52 are opened, and the bag body is transferred to the position corresponding to the four heat sealing heads 53, four pairs (eight The piston rod of the heat sealing cylinder 57 is simultaneously extended, and the four heat sealing heads 53 are pressed to complete the first heat sealing of the bag body pocket; subsequently, the piston rods of the four pairs (8) heat sealing cylinders 57 are simultaneously contracted. Back, the four heat seal heads 53 are opened, the bag body is conveyed to a position corresponding to the four second heat seal heads 54, and the piston rods of the four pairs (eight) of the second heat seal cylinders 58 are simultaneously extended, four The second heat sealing head 54 is pressed to complete the second heat sealing of the bag body pocket; then, the piston rods of the four pairs (8) of the second heat sealing cylinders 58 are simultaneously retracted, and the four second heat sealing heads 54 are simultaneously retracted. When the opening is opened, the bag body is conveyed to a position corresponding to the four cold heads 55, and the piston rods of the four pairs (8) of the cold-sealed cylinders 59 are simultaneously extended, and the four cold heads 55 are opened. Together, completing the cold seal, and then, four pairs of the piston rod (8), while the cold seal cylinder 59 is retracted, the cold head 55 four open, to give bag 17, the bag 17 is removed and then heat-sealing means 5.

(5) When the packaging bag 17 and the hanging plate 12 sent from the heat sealing device 5 reach the second limiting block 14, the hanging plate 12 has a tendency to be turned downward under the action of gravity, and the hanging plate 12 is in the conveying chain 21 During the traveling, the lower surface of the hanging plate 12 is kept in contact with the second limiting edge line 141. Therefore, the position of the hanging plate 12 during traveling is determined by the second limiting edge line 141; as the conveying chain 21 travels, The hanging plate 12 is advanced along the second limiting edge line 141, and the second limiting edge line 141 applies a supporting force to the hanging plate, and the hanging plate 12 is gradually turned downward and the outer side (ie, the side away from the conveying chain 21) is continuously lowered. Until the hanging board 12 is in a horizontal state.

(6) In the filling device 6, the filling cylinder 61, the metering pump 62, the inlet valve 63, the outlet valve 64, and the lifting cylinder 619 cooperate to complete the material filling.

(7) In the sealing device 7, the cover is arranged by the cover device 71 and the cover is sent to the cover device 72. The cover device 72 places the cover on the suction tube 9, and then the cover is screwed by the screw cover device 73 to complete the sealing.

(8) Retreating the bag: When the hanging plate 12 conveys the packaging bag 17 to a position corresponding to the starting end of the bag-removing plate 16, the suction pipe 9 of the packaging bag 12 is on the outer side of the bag-removing plate 16, the suction pipe 9 and the bag-removing guide surface 161 contact; then the hanging plate 12 and the packaging bag 17 travel along the conveying chain 21, and the suction pipe 9 moves along the unloading bag guiding surface 161. At this time, the unloading bag guiding surface 161 applies an outward thrust to the suction pipe 9, and the suction pipe 9 is gradually Pushing out from the opening 10 in the hanging plate 12; when the hanging plate 12 passes over the bag returning plate 16, the straw 9 is completely withdrawn from the opening 10 in the hanging plate 12, and the packaging bag 17 is withdrawn from the conveying chain 21 and dropped by gravity.

In other embodiments, the first inversion mechanism includes a first limiting block, the first limiting block has a first limiting edge, and the first limiting edge is in contact with the lower surface of the hanging plate, and the first limiting edge is along The direction of travel of the conveyor chain gradually approaches the conveyor chain and gradually increases. When the hanging plate reaches the first turning mechanism, under the action of gravity, the hanging plate keeps in contact with the first limiting edge during the traveling with the conveying chain, and therefore, the position of the hanging plate during the traveling process It is determined by the first limit edge line; as the conveyor chain travels, the hanging plate advances along the first limit edge line, and the first limit edge line applies a lifting force to the hanging plate and a thrust toward the conveyor chain, and the hanging plate is gradually upward. Flip and its outer side (ie the side away from the conveyor chain) is constantly raised until the hanging plate is in a vertical position. The hanging plate sent by the feeding device is in a horizontal state. In order to flip the hanging plate from the horizontal state to the vertical state, the starting point and the ending point of the first limiting edge line generally satisfy the following conditions: The hanging plate reaches the first limiting block At the starting end, the lower surface of the hanging plate is located above the starting point of the first limiting edge; when the hanging plate reaches the end of the first limiting block, the gap between the end point of the first limiting edge and the conveying chain can only be allowed to hang The plate passes in a vertical state, and the hanging plate is located inside the end point of the first limit edge line, and the projection of the lower surface of the hanging plate in the vertical direction is a line, and the projection of the end point of the first limit edge line in the vertical direction falls. On the line. Through the above-mentioned first limiting block, the hanging plate and the conveying chain hinged with each other can turn the hanging plate from the horizontal state to the vertical state, the structure is simple, and the operation is reliable.

In other embodiments, the second inverting mechanism includes a second limiting block, the second limiting block has a second guiding curved surface, the second guiding curved surface is in contact with the lower surface of the hanging plate, and the second guiding curved surface is along the conveying chain The direction of travel is gradually reversed from the vertical plane towards the conveyor chain to an upwardly facing level. The packaging bag and the hanging plate sent out from the heat sealing device have the tendency of the hanging plate to be turned downward under the action of gravity, and the lower surface of the hanging plate keeps in contact with the second guiding curved surface during the traveling with the conveying chain. Therefore, the position of the hanging plate during the traveling is determined by the second guiding surface; as the conveying chain travels, the hanging plate advances along the second guiding surface, and the second guiding surface applies a supporting force to the hanging plate, and the hanging plate Gradually downwards and its outer side (ie, the side away from the conveyor chain) is continuously lowered until the panel is level. Since the hanging plate is in the upward flipping process, the hanging plate and the second limiting block are in contact with each other through the surface. Therefore, the second limiting block can better support the hanging plate. Through the above-mentioned second limiting block, the function of the hanging plate and the conveying chain hinged to each other and relying on gravity on the packaging bag and the hanging plate can turn the hanging plate from the vertical state to the horizontal state, the structure is simple, and the operation is reliable.

Claims

Rights request

1. A sealed bag filling machine comprising a frame, two feeding devices, two bag feeding devices, two heat sealing devices, two filling devices, two sealing devices, and two bag retreating devices And a conveying device, two feeding devices, two bag feeding devices, two heat sealing devices, two filling devices, two sealing devices and two bag retreating devices are arranged on the frame; the conveying device comprises a conveyor chain, a drive sprocket, a driven sprocket and a main drive mechanism, wherein the drive sprocket, the driven sprocket and the main drive mechanism are mounted on the frame, and the conveyor chain is mounted on the drive sprocket and the driven sprocket, The driving sprocket is connected to the main driving mechanism, and the conveying chain is equidistantly mounted with a plurality of hanging plates, and the hanging plate is provided with an opening capable of accommodating the suction pipe, wherein: one side of the hanging plate is hinged with the conveying chain; The traveling direction of the conveyor chain, the forward section and the return section of the conveyor chain have a feeding station, a bag supply station, a heat sealing station, a filling station, a sealing station and a bag returning station, respectively. one of them Feeding device, a bag supply device, a heat sealing device, a filling device, a sealing device and a bag return device respectively, respectively, a feeding station on the front section of the conveyor chain, a bag supply station, and a heat The sealing station, the filling station, the sealing station and the bag returning position correspond to each other, another feeding device, a bag feeding device, a heat sealing device, a filling device, a sealing device and a retreat The bag device respectively corresponds to the feeding station, the bag supply station, the heat sealing station, the filling station, the sealing station and the bag returning position on the return section of the conveyor chain; Between the position and the bag supply station, there is a first turning mechanism capable of flipping the hanging plate from a horizontal state to a vertical state; between the heat sealing station and the filling station, a hanging plate can be arranged from the vertical The second inverting mechanism is turned up to the horizontal state; the first inverting mechanism and the second inverting mechanism are provided with a hanging plate slot capable of keeping the hanging plate in a vertical state.

2. The sealed bag filling machine according to claim 1, wherein: the first inverting mechanism comprises a first limiting block, the first limiting block has a first limiting edge, and the first limiting edge In contact with the lower surface of the hanging plate, the first limiting edge gradually approaches the conveying chain and gradually rises along the traveling direction of the conveying chain.

3. The sealed bag filling machine according to claim 1, wherein: the first turning mechanism comprises a first limiting block, the first limiting block has a first guiding curved surface, and the first guiding surface is suspended. The lower surface of the plate is in contact Cooperate, the first guiding surface is along

The vertical side of the strip.

4. The sealed bag filling machine according to claim 1, wherein: the second inverting mechanism comprises a second limiting block, the second limiting block has a second limiting edge, and the second limiting edge In contact with the lower surface of the hanging plate, the second limiting edge gradually moves away from the conveying chain along the traveling direction of the conveying chain and gradually decreases.

The sealed bag filling machine according to claim 1, wherein: the second inverting mechanism comprises a second limiting block, the second limiting block has a second guiding curved surface, and the second guiding surface is suspended The lower surface of the plate is in a contact fit, and the second guiding curved surface is gradually twisted from the vertical direction toward the conveying chain to an upward horizontal plane in the traveling direction of the conveying chain.

The sealed bag filling machine according to any one of claims 1 to 5, wherein: the pipe feeding device comprises a vibration plate, a pipe guide rail, a push tube cylinder and a push tube guide, a vibration plate, and a delivery The pipe guide rail, the push tube cylinder and the push tube guide rail are all mounted on the frame; the outlet port of the vibration plate is connected with the rear end of the feed pipe guide, and the push pipe guide is connected with the front end of the feed pipe guide; the push pipe guide is along the conveyor chain The traveling direction is gradually closer to the conveying chain; the front part of the feeding pipe rail is a linear conveying pipe rail section, and the pushing pipe cylinder is arranged above the feeding pipe guide rail and parallel with the linear conveying pipe rail section, and the piston rod of the pushing pipe cylinder is arranged There is a one-way claw capable of dialing the suction pipe on the straight-shaped feed pipe rail section; a rear side of the opening of the hanging plate has a pipe portion extending outward.

The sealed bag filling machine according to any one of claims 1 to 5, wherein: the bag feeding device comprises a bag storing mechanism, a bag taking mechanism, a bag opening mechanism, and a bag feeding device. a mechanism, and a bag conveying mechanism capable of receiving the bag body from the pick-and-place bag mechanism and feeding the bag body to the bag opening mechanism; the bag storing mechanism and the pick-and-place bag mechanism are mounted on the frame; the bag feeding mechanism includes moving The seat and moving seat position switching mechanism, the moving seat position switching mechanism is mounted on the frame, the power output end of the moving seat position switching mechanism is connected with the moving seat, and the open bag opening mechanism is mounted on the moving seat.

8. The sealed bag filling machine according to claim 7, wherein: the bag storing mechanism comprises a bag box and a push bag mechanism; the bag box is disposed on the frame in a horizontal direction, and the bag box is The cross section matches the bag body, The front end of the bag box is provided with a bag opening; the pushing bag mechanism comprises a push bag plate, a push bag without rod cylinder, a bag body shift fork, a bag body shifting translation cylinder, a lifting seat and a bag body fork lifting cylinder; Set in the bag box, the push bag rodless cylinder is mounted on the frame, and the slider of the push bag rodless cylinder is connected with the push bag plate; the bag body fork lifting cylinder is arranged in the vertical direction, the bag body fork lifting cylinder The cylinder block is mounted on the frame, and the lifting seat is connected with the piston rod of the bag fork lifting cylinder; the bag body shifting cylinder is parallel with the push bag rodless cylinder, and the cylinder body of the bag shifting cylinder is mounted on the lifting and lowering On the seat, the bag fork is connected to the piston rod of the bag shifting cylinder.

9. The sealed bag filling machine according to claim 7, wherein: the bag conveying mechanism comprises a pair of bag guide rails, a dial bag plate and a dial bag air bag guide rail pair comprising two parallel inputs. The bag guide rail and the bag guide rail are mounted on the rack; the dial bag plate has a dial bag portion, and the dial bag portion is located between the two bag guide rails of the pair of bag guide rails; the dial bag cylinder is parallel with the bag guide rail pair, and the bag is dialed The cylinder block is mounted on the frame, and the piston rod of the dial cylinder is connected to the dial plate.

10. The sealed bag filling machine according to claim ,, wherein: said bag opening mechanism comprises a left gripper cylinder, a right gripper cylinder, an upper suction cup, an upper suction cup mounting plate, a lower suction cup and a lower suction cup. a mounting plate; a cylinder of the left gripper cylinder and a cylinder of the right gripper cylinder are mounted on the movable seat, the left gripper cylinder is disposed on the left side of the movable seat, and the right gripper cylinder is disposed on the right side of the movable seat; The left end of the suction cup mounting plate is connected with the upper pneumatic claw of the left gripper cylinder, the right end is connected with the upper pneumatic claw of the right gripper cylinder, the left end of the lower suction cup mounting plate is connected with the lower pneumatic claw of the left gripper cylinder, and the right end and the right gripper cylinder are connected. The lower suction claw is connected; the upper suction cup is mounted on the upper suction cup mounting plate, the lower suction cup is mounted on the lower suction cup mounting plate, and the upper suction cup corresponds to the lower suction cup position.