Manufacturing process of round-opening self-standing suction nozzle bag

Abstract

The invention relates to a manufacturing process of a round-opening self-standing suction nozzle bag, and relates to the technical field of suction nozzle bag manufacturing, and the manufacturing process comprises the steps of designing, plate making and bag manufacturing material printing. Performing compounding; slitting and bag making; the grabbing mechanism firstly grabs the suction nozzle to move to the bag body, the opening assembly is started to adsorb the bag body to open the opening, and the grabbing mechanism inserts one end of the suction nozzle into the opening and maintains the position of the suction nozzle; and the heat sealing mechanism is started to conduct heat sealing on the bag body for at least two times, and therefore manufacturing of the suction nozzle bag is completed. The grabbing mechanism grabs a suction nozzle for transportation and can position the suction nozzle, the opening assembly can open an opening of a bag body and can position the position of the bag body, the grabbing mechanism drives the suction nozzle, the bag body and the opening assembly to rotate, and a certain angle is formed between the next heat sealing and the previous heat sealing. The probability of uneven temperature during heat sealing of the heat sealing mechanism is reduced, and the heat sealing quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of spout bag manufacturing, and in particular to a manufacturing process for a round-mouth self-supporting spout bag. Background Art

[0002] The round mouth self-supporting spout bag has unique advantages in the packaging field. It is light in weight, occupies a small area, and is easy to carry and store. At the same time, the large printing area can increase brand awareness and play a good publicity role. At present, the round mouth self-supporting bag hot spout has been widely used in many industries such as food, beverages, and daily chemicals.

[0003] The existing production process of a round-mouth self-supporting nozzle bag includes the following steps: step one: designing, plate making and printing bag-making materials; step two: compounding, compounding the printed materials; step three: slitting and bag-making, slitting and bag-making the compounded materials, and reserving an opening on the bag body; step four: nozzle sewing, inserting the nozzle into the opened opening, and then fixing the nozzle to the bag body by heat sealing, so as to complete the production of the nozzle bag.

[0004] First, the suction nozzle is grasped by the grasping mechanism and inserted into the opening, and the grasping mechanism is separated from the suction nozzle. Then, heat sealing is performed by the heat sealing mechanism. Heat sealing requires two heat sealing knives to be close to each other to achieve heat sealing. The temperature at the contact points of the two hot air knives is low, which makes the heat sealing effect at the contact points of the two heat sealing knives poor, thereby reducing the heat sealing quality of the suction nozzle bag. In addition, since the grasping mechanism is separated from the suction nozzle during heat sealing, the risk of displacement of the suction nozzle during the heat sealing process is increased, thereby also reducing the heat sealing quality of the suction nozzle bag. Summary of the invention

[0005] In order to improve the heat sealing quality of the spout bag, the present application provides a round-mouth self-supporting spout bag manufacturing process.

[0006] The manufacturing process of the round-mouth self-supporting nozzle bag provided in this application adopts the following technical solution: The production process of a round mouth self-supporting nozzle bag includes the following steps: Design, plate making and printing bag making materials; Compounding, compounding the printed materials; Cutting and bagging: cutting and bagging the composite materials, and leaving openings on the bag bodies; Heat sealing, by arranging the grabbing mechanism, the heat sealing mechanism and the opening component on the sliding seat and moving them under the drive of the sliding seat, the grabbing mechanism first grabs the suction nozzle and moves it to the bag body, the opening component starts to absorb the bag body and open the opening, the grabbing mechanism inserts one end of the suction nozzle into the opening and maintains the position of the suction nozzle; the heat sealing mechanism starts to heat seal the bag body at least twice, and during the last heat sealing, the grabbing structure drives the bag body, the suction nozzle and the opening component to rotate a certain angle before heat sealing. After the heat sealing is completed, the grabbing mechanism releases the clamping force on the suction nozzle and disengages from the suction nozzle, thereby completing the production of the suction nozzle bag.

[0007] By adopting the above technical scheme, the bag-making materials are first designed, plate-made and printed, and then compounded, and then cut and bag-made, and an opening is reserved on the bag body. The sliding seat moves to drive the grasping mechanism, the heat sealing mechanism and the opening component to move simultaneously, the grasping mechanism grasps the suction nozzle and moves it to one side of the bag body, the opening component starts to absorb the bag body and open the bag opening, and the grasping mechanism inserts the suction nozzle into the opening and maintains the position of the suction nozzle.

[0008] The heat sealing mechanism starts to perform the first heat sealing on the bag body, so that the nozzle and the bag body are initially heat sealed and fixed, then the heat sealing mechanism moves away from the bag body, and the grasping mechanism drives the nozzle, the bag body and the opening component to rotate at the same time, then the heat sealing mechanism continues to start to heat seal, and then continues to heat seal as required until the requirements are met, and at the same time, the next heat sealing is performed after rotating a certain angle compared to the previous time; after the heat sealing is completed, the grasping mechanism drives the nozzle, the bag body and the opening component to rotate back to the initial state at the same time, the grasping mechanism releases the clamping force on the nozzle and separates from the nozzle, and the opening component separates from the bag body, thereby completing the production of the nozzle bag.

[0009] The grabbing mechanism grabs the nozzle for transportation and can position the nozzle, the opening component can open the bag opening and position the bag, reducing the risk of displacement between the nozzle and the bag opening during heat sealing, and the grabbing mechanism drives the nozzle, the bag and the opening component to rotate, so that a certain angle is formed between the last heat seal and the previous heat seal, reducing the probability of uneven temperature during heat sealing by the heat sealing mechanism, improving the heat sealing quality, and the nozzle and the bag are driven to rotate after the first heat seal, plus the bag is lighter, and the opening component absorbs the bag and rotates at the same time, thereby reducing the probability of rotation between the nozzle and the bag during rotation, further improving the heat sealing quality.

[0010] Compared with the prior art, the grabbing mechanism can realize the grabbing, positioning and rotation of the suction nozzle, thereby being able to achieve multiple effects simultaneously and continuously. Furthermore, the sliding seat drives the grabbing mechanism, the heat sealing mechanism and the opening component to move simultaneously, and can also make the position of the opening component adsorbing the bag body consistent with the position of the grabbing mechanism inserting the suction nozzle, so that the whole process runs stably, thereby greatly saving the time spent in the moving process, thereby improving the efficiency of heat sealing at the same time.

[0011] Optionally, the grabbing mechanism includes: A rotating seat, rotatably arranged on the sliding seat; The grab seat is slidably arranged on the rotating seat in the direction of approaching or moving away from the bag body. The grab seat is provided with a clamping groove with a diameter larger than the suction nozzle and for one end of the suction nozzle to extend into. The rotating seat rotates to drive the grab seat and the suction nozzle to rotate and is used to adjust the angle of the suction nozzle and the bag body. The clamping groove is provided with an annular mounting groove; the opening assembly is arranged on the rotating seat; The annular airbag is snap-fitted and installed in the installation groove; A driving assembly, used for driving the rotating seat to rotate; A moving component, used for driving the grabbing seat to move; The control component is connected to the annular airbag and is used to control the annular airbag to clamp and position the suction nozzle after inflation or to release the clamping force on the suction nozzle after deflating the annular airbag to shrink.

[0012] By adopting the above technical solution, the sliding seat drives the grabbing mechanism to move to the suction nozzle, the moving component starts to drive the grabbing seat close to the suction nozzle, so that one end of the suction nozzle extends into the clamping groove and rests against the bottom of the clamping groove for positioning, and then the control component controls the annular airbag to inflate and clamp the suction nozzle to position it, so that the suction nozzle can be positioned; the moving component starts to drive the grabbing seat to move back, so that the suction nozzle is detached from the conveyor line, the sliding seat moves to drive the suction nozzle to the bag body, and the moving component starts to drive the grabbing seat and the suction nozzle close to the bag body, so that one end of the suction nozzle is inserted into the opening of the bag body.

[0013] The heat sealing mechanism starts to heat seal the bag body for the first time and then moves away from the bag body. The driving component then drives the grabbing seat, the suction nozzle and the bag body to rotate. The heat sealing mechanism then starts to heat seal the bag body again. The rotation and heat sealing are then continued until the heat sealing is completed. The control component controls the annular airbag to deflate and shrink, thereby releasing the clamping force on the suction nozzle. The moving component then drives the grabbing seat to move back, so that the suction nozzle is disengaged from the card slot. In this way, the suction nozzle is grabbed, inserted and rotated, and the heat sealing mechanism is cooperated to achieve heat sealing of the bag body, thereby improving the heat sealing quality and efficiency.

[0014] At the same time, the opening component is arranged on the rotating seat. The opening component adsorbs the bag body to open the bag mouth and then positions it. When the rotating seat drives the grabbing seat to rotate and adjust the angle of the suction nozzle and the bag body, the rotating seat also drives the opening component and the bag body adsorbed thereon to rotate at the same time, further reducing the probability of displacement between the suction nozzle and the bag body and improving the heat sealing quality; further, when the grabbing seat moves away from the suction nozzle, the opening component is adsorbed on the bag body to position it, thereby reducing the risk of the bag body changing its position on the conveyor line and causing adverse effects on other subsequent processes.

[0015] Optionally, the control component includes: An air inlet pipe and an air outlet pipe are arranged on the annular air bag and are provided with an air inlet valve and an air outlet valve; The air inlet hose and the air outlet hose are respectively arranged on the air inlet pipe and the air outlet pipe. The air inlet hose is arranged on the sliding seat and is used to input gas and stops inputting after the air pressure reaches a specified value; the air outlet valve opens and allows the gas in the annular airbag to be output through the air outlet hose.

[0016] By adopting the above technical solution, the air inlet valve is opened, and the gas in the air inlet hose is input into the annular airbag. When the specified air pressure is reached in the annular airbag, inflation is stopped, thereby clamping and positioning the suction nozzle; the air outlet valve is opened, and the gas in the annular airbag is output through the air outlet pipe and the air outlet hose under the action of the air pressure, thereby releasing the clamping force on the suction nozzle and improving the convenience during operation. At the same time, the air inlet hose and the air outlet hose are both hoses, so they are used to avoid position when the grab seat rotates and moves.

[0017] Optionally, the clamping groove is provided with air outlet holes for outputting gas to push the suction nozzle out of the clamping groove or for cooling the heat sealing area, and the grabbing seat is provided with an air pipe connected to the multiple air outlet holes and an air inlet hose, and the air pipe is provided with an air valve for opening and closing, and the air outlet hose is connected to the air pipe located between the air valve and the grabbing seat.

[0018] By adopting the above technical solution, after the heat sealing is completed, when the air outlet valve is opened, the gas in the annular airbag enters the air pipe through the air outlet hose under the action of air pressure. The gas output through the air pipe and the air outlet hole will push the suction nozzle to move, and at the same time, the moving component starts to drive the grabbing seat away from the suction nozzle, so that the suction nozzle can be easier to detach from the card slot, thereby improving the stability during operation and the heat sealing efficiency.

[0019] The grabbing seat moves so that the suction nozzle is disengaged from the card slot and then stops moving, the air supply valve opens, and the gas in the air inlet hose is blown out of the suction nozzle and the heat-sealed portion of the bag body through the air outlet holes, thereby cooling the heat-sealed portion; furthermore, the air outlet holes are evenly distributed in the card slot, so that the gas passing through the air outlet holes can be more accurately aligned with the heat-sealed portion of the suction nozzle and the bag body, thereby further improving the cooling effect on the bag body, making the connection between the suction nozzle and the bag body more secure and saving the time spent on heat sealing, thereby improving the heat sealing quality and efficiency at the same time.

[0020] Optionally, the driving component includes: A main gear, arranged on a rotating seat; A driving member, arranged on the sliding seat; The secondary gear is arranged on the output shaft of the driving member and meshes with the main gear. The driving member is used to drive the secondary gear to rotate.

[0021] By adopting the above technical solution, the driving member drives the secondary gear to rotate, the secondary gear rotates to drive the main gear and the rotating seat to rotate, and the rotating seat rotates to drive the grabbing seat to rotate, so that the driving member drives the grabbing seat to rotate.

[0022] Optionally, the mobile component includes: A moving plate is arranged on the grabbing seat; The moving member is arranged on the rotating seat and is used for driving the moving plate to move.

[0023] By adopting the above technical solution, the moving member starts to drive the moving plate and the grab seat to move simultaneously, thereby realizing the movement of the grab seat, and the moving member is located on the rotating seat, so the moving member rotates simultaneously with the rotating seat and the grab seat, so that the rotation will not interfere with the movement of the moving member.

[0024] Optionally, the opening component includes: Two movable parts are arranged on the rotating seat and the piston rods are arranged opposite to each other; Two suction cups are arranged on the piston rods of the two movable parts and are used for adsorbing and positioning the two opposite surfaces of the bag body.

[0025] By adopting the above technical solution, the two movable parts drive the two suction cups to approach each other and adsorb on the two opposite surfaces of the bag body, and the two movable parts drive the two suction cups to move away from each other to open the opening of the bag body; when unlocking is required, the suction cups take in air, and the bag body can rebound under the action of its own restoring force and separate from the two suction cups.

[0026] Optionally, the heat sealing mechanism includes: Two moving seats, slidingly arranged on the sliding seats; A pushing member, used for driving the two moving seats to move closer to or away from each other; Two heat-sealing knives are arranged on two movable seats through elastic components and are provided with arc-shaped heat-sealing surfaces for heat-sealing the bag body; The heating component is used for heating the two heat sealing knives.

[0027] By adopting the above technical solution, the heating component heats the heat sealing knife, and the pushing member drives the two movable seats to approach each other, so that the two heat sealing knives approach each other, so that the two heat sealing knives abut against each other to heat seal the bag body, and at the same time, the two elastic components can make the heat sealing knife contact with the bag body earlier and separate from the bag body later, thereby extending the heat sealing time and enhancing the heat sealing effect, thereby improving the heat sealing quality and efficiency.

[0028] Optionally, the elastic component includes: A fixed plate, arranged on the movable seat; A moving rod is arranged on the heat sealing knife and is slidably arranged on the fixed plate; The spring is sleeved on the moving rod and pressed against the fixed plate and the heat sealing knife in a compressed state; The moving nut is threadedly connected to the moving rod and is pressed against the fixed plate for positioning under the action of a spring.

[0029] By adopting the above technical solution, the movable seat drives the fixed plate, the movable rod, the spring and the movable nut to move simultaneously. When the heat sealing knife is pressed against the bag body, the fixed plate can continue to move. The fixed plate pushes the spring to increase the squeezing force on the heat sealing knife, and the two heat sealing knives continue to heat-seal the bag body. At the same time, when the fixed plate moves back, the heat sealing knife can continue to heat-seal under the action of the spring. The fixed plate continues to move to make the heat sealing knife stay away from the bag body, thereby improving the heat sealing quality.

[0030] Optionally, the heating component includes: A heating wire is arranged inside the heat sealing knife for heating; The heat-insulating layer is coated on the outer side wall of the heat-sealing knife for heat insulation and the heat-sealing surface is exposed to the outside for heat sealing.

[0031] By adopting the above technical solution, the heating wire heats the heat sealing knife, and the insulation layer keeps warm, so that the heat sealing knife only leaves the side wall that is in general contact with the heat sealing surface as the heat sealing surface, thereby improving the heating effect and efficiency, and improving the heat sealing quality and efficiency.

[0032] In summary, the present application includes at least one of the following beneficial technical effects: 1. The grabbing mechanism grabs the nozzle for transportation and can position the nozzle. The opening component can open the bag opening and position the bag. The grabbing mechanism drives the nozzle, bag and opening component to rotate, so that a certain angle is formed between the last heat seal and the previous heat seal, which reduces the probability of uneven temperature during heat sealing by the heat sealing mechanism, improves the heat sealing quality, and reduces the probability of rotation between the nozzle and the bag during rotation, further improving the heat sealing quality.

[0033] 2. The grabbing mechanism can realize the grabbing, positioning and rotation of the suction nozzle, so that multiple effects can be achieved simultaneously and continuously. Furthermore, the sliding seat drives the grabbing mechanism, the heat sealing mechanism and the opening component to move simultaneously, and can also make the position of the opening component adsorbing the bag body consistent with the position of the grabbing mechanism inserting the suction nozzle, so that the whole process runs stably, which greatly saves the time spent in the moving process, and thus improves the efficiency of heat sealing at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the sliding seat, the grabbing mechanism, the opening assembly and the heat sealing mechanism; Figure 2 It is a structural diagram of a sliding seat and a grabbing mechanism; Figure 3 yes Figure 2 Schematic diagram of the cross section of AA; Figure 4 It is a structural schematic diagram of the grab seat, opening assembly and heat sealing mechanism.

[0035] Figure numerals: 1, sliding seat; 11, mounting plate 1; 12, mounting plate 2; 2, grabbing mechanism; 21, rotating seat; 211, rotating shaft; 212, moving groove; 22, grabbing seat; 221, sliding rod; 222, clamping groove; 223, mounting groove; 224, mounting hole; 225, air outlet; 23, annular airbag; 24, driving assembly; 25, main gear; 26, sub-gear; 27, driving member; 3, moving assembly; 31, moving plate; 32, moving member; 4 , control component; 41, air inlet pipe; 411, air inlet valve; 42, air outlet pipe; 421, air outlet valve; 43, air inlet hose; 44, air outlet hose; 45, air inlet ring; 46, air supply pipe; 47, air supply valve; 5, opening component; 51, movable part; 52, suction cup; 6, heat sealing mechanism; 61, moving seat; 62, pushing part; 63, heat sealing knife; 64, heat sealing surface; 7, elastic component; 71, fixing plate; 72, moving rod; 73, spring; 74, moving nut. DETAILED DESCRIPTION

[0036] The present application is described in further detail below.

[0037] The embodiment of the present application discloses a process for manufacturing a round-mouth self-supporting nozzle bag.

[0038] Reference Figure 1 The manufacturing process of a round mouth self-supporting nozzle bag includes the following steps: Design, plate making and printing bag making materials; Compounding: Compound the printed materials with glue suitable for the high temperature of the press nozzle. When compounding, the surface tension of the middle layer material should meet the compounding requirements and have good affinity with the adhesive. At the same time, the inner heat-sealing layer should have good anti-pollution, antistatic and heat-sealing properties. Cutting and bagging: Cutting and bagging the composite materials. When making bags, remove static electricity on the surface to avoid adsorption between bags, and reserve openings on the bag body; Heat sealing, by arranging the grabbing mechanism 2, the heat sealing mechanism 6 and the opening component 5 on the sliding seat 1 and moving them under the drive of the sliding seat 1, the grabbing mechanism 2 first grabs the suction nozzle and moves it to the bag body, the opening component 5 starts to absorb the bag body and open the opening, the grabbing mechanism 2 inserts one end of the suction nozzle into the opening and maintains the position of the suction nozzle; the heat sealing mechanism 6 starts to heat seal the bag body at least twice, and during the last heat sealing, the grabbing structure drives the bag body and the suction nozzle to rotate a certain angle before heat sealing. After the heat sealing is completed, the grabbing mechanism 2 releases the clamping force on the suction nozzle and disengages from the suction nozzle, thereby completing the production of the suction nozzle bag.

[0039] The sliding seat 1 is slidingly arranged on the frame, and the sliding seat 1 can move in both horizontal and vertical directions. A driving mechanism for driving the sliding seat 1 to move is arranged on the frame. The driving mechanism can adopt a motor screw nut structure. This structure is a prior art and will not be described in detail here. The conveying line for conveying the suction nozzle and the bag body is located on the same side or both sides of the sliding seat 1. When located on the same side, the movement of the sliding seat 1 can directly realize the grasping and conveying of the suction nozzle. If it is located on both sides, the sliding seat 1 can rotate and adjust the grasping direction of the grasping mechanism 2, so as to realize the grasping and conveying of the suction nozzles at different positions. The rotation of the sliding seat 1 can adopt a servo motor, etc. This structure is a prior art and will not be described in detail here.

[0040] Reference Figure 2 and Figure 3 The grabbing mechanism 2 includes a rotating seat 21, a grabbing seat 22, an annular airbag 23, a control component 4, a driving component 24 and a moving component 3. The rotating seat 21 is rotatably mounted on the side wall of the sliding seat 1 through a rotating shaft 211. The rotating seat 21 is a horizontally placed cylindrical structure. The rotating shaft 211 is coaxially and integrally arranged on one end of the rotating seat 21 close to the sliding seat 1 and is rotatably mounted on the sliding seat 1. A moving groove 212 with a square cross-section is opened along the axis of the rotating shaft 211 at one end of the rotating seat 21 away from the rotating shaft 211. The rotation angle of the rotating seat 21 is greater than 0 degree and less than 90 degrees.

[0041] A sliding rod 221 is slidably installed on the movable groove 212, and the rotating seat 21 is fixedly installed on the end of the sliding rod 221 away from the rotating seat 21. The grabbing seat 22 is cylindrical and is coaxially arranged with the rotating seat 21, so as to realize the movement of the grabbing seat 22 in the direction of approaching or moving away from the bag body; a clamping groove 222 is coaxially opened at the end of the grabbing seat 22 away from the sliding rod 221, and a mounting groove 223 is coaxially opened in the clamping groove 222. A plurality of air outlet holes 225 are evenly opened at the bottom of the clamping groove 222 along the axis of the grabbing seat 22, and the air outlet holes 225 are connected with the end of the grabbing seat 22 close to the sliding rod 221, and two mounting holes 224 connected with the mounting groove 223 are arranged at intervals on the outer wall of the grabbing seat 22.

[0042] The driving assembly 24 is used to drive the rotating seat 21 to rotate, and the rotating seat 21 rotates to drive the grabbing seat 22 to rotate at the same time, and the moving assembly 3 is used to drive the grabbing seat 22 to move; the driving assembly 24 includes a main gear 25, a driving member 27 and a sub-gear 26, the main gear 25 is key-connected to the rotating shaft 211 and is located on the side of the sliding seat 1 away from the rotating seat 21, the driving member 27 is a driving motor or a servo motor, the driving member 27 is fixedly installed on the sliding seat 1, and the sub-gear 26 is key-connected to the output shaft of the driving member 27 and meshes with the main gear 25.

[0043] The driving member 27 drives the secondary gear 26 to rotate, and the secondary gear 26 drives the main gear 25, the rotating shaft 211, the rotating seat 21 and the grabbing seat 22 to rotate simultaneously; the moving assembly 3 includes a moving plate 31 and a moving member 32, the moving plate 31 is fixedly mounted on the sliding rod 221, the moving member 32 is a cylinder or an electric push rod, the moving member 32 is fixedly mounted on the side wall of the rotating seat 21, and the piston rod of the moving member 32 is fixedly connected to the moving plate 31, and the moving member 32 drives the moving plate 31 and the grabbing seat 22 to move simultaneously.

[0044] The annular airbag 23 is mounted on the mounting groove 223 by snap-fitting, and the diameter of the snap-fitting groove 222 is larger than the outer diameter of the suction nozzle; the control component 4 is connected to the annular airbag 23, and the control component 4 is used to control the annular airbag 23 to inflate and clamp the suction nozzle to position it, or to deflate the annular airbag 23 to shrink and release the clamping force on the suction nozzle.

[0045] Reference Figure 1-Figure 3 The opening component 5 is arranged on the rotating seat 21. When the rotating seat 21 drives the grabbing seat 22, the suction nozzle and the bag body to rotate, the opening component 5 continues to be adsorbed on the bag body to maintain the open state. Therefore, when the grabbing seat 22 drives the bag body to rotate, the opening component 5 drives the bag body to rotate at the same time under the action of the rotating seat 21, thereby further reducing the risk of misalignment between the bag body and the suction nozzle. At the same time, when the grabbing seat 22 is away from the suction nozzle, the opening component 5 continues to adsorb and position the bag body, thereby further reducing the probability of the bag body being displaced on the conveyor line and interfering with subsequent production.

[0046] The sliding seat 1 moves to drive the grabbing mechanism 2, the heat sealing mechanism 6 and the opening component 5 to move simultaneously, so that the grabbing seat 22 moves to the conveying suction nozzle, and the moving part 32 drives the grabbing seat 22 to approach the suction nozzle, so that one end of the suction nozzle extends into the clamping groove 222 and rests on the bottom of the clamping groove 222 for positioning, and the control component 4 controls the air intake to make the annular airbag 23 expand to clamp and position the suction nozzle, and the moving part 32 drives the grabbing seat 22 to move back, so that the suction nozzle is separated from the conveying line, and then the sliding seat 1 drives the suction nozzle to move to the conveying bag body.

[0047] The opening component 5 absorbs the bag body and opens the bag opening, the moving part 32 starts to drive the suction nozzle to insert into the bag opening, and then the heat sealing mechanism 6 starts to heat seal the bag body and then moves away from the bag body, so that the suction nozzle and the bag body are initially heat sealed, the driving part 27 drives the suction nozzle and the bag body to rotate a certain angle, the heat sealing mechanism 6 continues to heat seal, and then ends the heat sealing, or continues to repeat the rotation and heat sealing multiple times.

[0048] After the heat sealing is completed, the driving member 27 drives the suction nozzle, the bag body and the opening component 5 to the initial position, so that the bag body can be placed on the conveyor line in the initial state. The initial state is determined by the state of the conveyor belt conveying the bag body, which is generally a horizontal state, so as to facilitate the subsequent conveying of the bag body; the control component 4 controls the annular airbag 23 to deflate, so that the annular airbag 23 contracts and releases the clamping force on the suction nozzle, and the moving member 32 drives the grabbing seat 22 away from the suction nozzle, so that the suction nozzle moves to the outside of the clamping groove 222, and the opening component 5 releases the adsorption force on the bag body, and the conveyor line can continue to drive the bag body to move, thereby completing the production of the suction nozzle bag.

[0049] Reference Figure 2-Figure 3 The control component 4 includes an air inlet pipe 41 and an air outlet pipe 42, an air inlet hose 43 and an air outlet hose 44. The air inlet pipe 41 and the air outlet pipe 42 are fixedly installed on the annular airbag 23 and are connected to the annular airbag 23. At the same time, the air inlet pipe 41 and the air outlet pipe 42 respectively pass through two mounting holes 224 to extend to the outside of the grab seat 22. The air inlet valve 411 and the air outlet valve 421 for controlling the opening and closing can be detachably installed on the air inlet pipe 41 and the air outlet pipe 42; during installation, the annular airbag 23 is in a deflated state, so that it is convenient to be placed in the mounting groove 223 and the air inlet pipe 41 and the air outlet pipe 42 respectively pass through the two mounting holes 224, and then the air inlet valve 411 and the air outlet valve 421 are fixedly installed on the air inlet pipe 41 and the air outlet pipe 42 respectively.

[0050] The air intake hose 43 is fixedly mounted on the sliding seat 1 and connected to the air source. One end of the air intake hose 43 is detachably connected to the air intake valve 411. When air intake is needed, the air intake valve 411 is opened, and the gas enters the annular airbag 23 through the air intake pipe 41, so that the annular airbag 23 is inflated and then clamped on the mounting groove 223 for positioning. At this time, the inner diameter of the annular airbag 23 is smaller than the diameter of the clamping groove 222, thereby completing the installation of the annular airbag 23; when one end of the suction nozzle extends into the clamping groove 222, the air intake valve 411 continues to open for air intake, and when the air pressure reaches the specified value, the gas input is stopped, so that the annular airbag 23 is further inflated and then clamped on the suction nozzle for positioning.

[0051] An air intake ring 45 is coaxially fixedly installed on one end of the grab seat 22 close to the sliding rod 221, and an air supply pipe 46 is fixedly installed on the side wall of the air intake ring 45. The air supply pipe 46 is connected with multiple air outlet holes 225 through the air intake ring 45, and an air supply valve 47 for controlling opening and closing is fixedly installed on the air supply pipe 46. The air intake hose 43 is connected with the air supply pipe 46; the air outlet hose 44 is detachably installed on the air outlet valve 421, and the other end of the air outlet hose 44 is connected to the air supply pipe 46 located between the air supply valve 47 and the air intake ring 45; the air intake hose 43 and the air outlet hose 44 are both retractable hoses, which facilitates the rotation and movement of the grab seat 22.

[0052] It is necessary to release the clamping force on the suction nozzle, and the air outlet valve 421 is opened. The gas in the annular airbag 23 is output through the air outlet hose 44, and then the gas is blown out through multiple air outlet holes 225. Since the gas movement still requires time, after the air outlet valve 421 is opened for a period of time, the grabbing seat 22 is away from the suction nozzle, and the gas blown out through the air outlet holes 225 can generate a certain thrust on the suction nozzle, making it easier for the suction nozzle to disengage from the clamping groove 222, and then the air outlet valve 421 is closed; when the grabbing seat 22 is away from the suction nozzle and the suction nozzle moves to the outside of the clamping groove 222 and stops moving, the air supply valve 47 is opened, and the gas in the air inlet hose 43 is blown toward the suction nozzle and the heat seal of the bag body through multiple air outlet holes 225, so as to achieve rapid cooling of the heat seal.

[0053] Reference Figure 1 , Figure 4 A mounting plate 11 is fixedly installed on the rotating seat 21, which extends radially from the rotating seat 21 to the outside of the grabbing seat 22 and then extends along the axis of the rotating seat 21 to the side of the grabbing seat 22 away from the sliding seat 1. Two mounting plates 11 are arranged in a circular array around the axis of the rotating seat 21; the opening assembly 5 is arranged on one end of the two mounting plates 11 away from the rotating seat 21, and the opening assembly 5 includes two movable parts 51 and two suction cups 52. The movable parts 51 are cylinders or electric push rods. The two movable parts 51 are fixedly installed on the opposite side walls of the two mounting plates 11, and the piston rods of the two movable parts 51 extend between the two mounting plates 11 through the two mounting plates 11 perpendicular to the axis of the grabbing seat 22.

[0054] The two suction cups 52 are respectively fixedly mounted on the piston rods of the two movable parts 51. The two movable parts 51 drive the two suction cups 52 to press against the two opposite surfaces of the bag body to achieve adsorption of the bag body. The piston rods of the two movable parts 51 retract, thereby opening the opening of the bag body, so as to facilitate the insertion of the suction nozzle into the opening of the bag body. When it is necessary to separate from the bag body, the two suction cups 52 are ventilated, and the bag body can move closer to each other under the action of its own restoring force and separate from the two suction cups 52.

[0055] Two mounting plates 12 arranged along the axis direction of the grabbing seat 22 are fixedly mounted on the sliding seat 1, and two mounting plates 12 are arranged in a circular array around the axis of the grabbing seat 22. Two heat sealing mechanisms 6 are provided and are located on the two mounting plates 12. The heat sealing mechanism 6 is located between the grabbing seat 22 and the opening component 5. At the same time, the two mounting plates 12 are both located between the two mounting plates 11, and the angle between the mounting plates 12 and the mounting plates 11 is 90 degrees. At the same time, the rotation angle of the two opening components 5 is less than 90 degrees and the two opening components 5 are located between the two heat sealing mechanisms 6 when they rotate, so that the heat sealing mechanism 6 will not interfere with the rotation of the two opening components 5.

[0056] Reference Figure 1 , Figure 4The heat sealing mechanism 6 includes two movable seats 61, a pushing member 62, two heat sealing knives 63 and a heating assembly. The two movable seats 61 are arranged on two mounting plates 12 for sliding along the direction of approaching or moving away from the grabbing seat 22, and the sliding direction of the movable seats 61 is perpendicular to the axis of the grabbing seat 22; the pushing member 62 is a cylinder or an electric push rod, and the pushing member 62 is arranged on two and fixedly installed on the two mounting plates 12. The piston rods of the two pushing members 62 are fixedly connected to the two movable seats 61, and the pushing member 62 drives the two movable seats 61 to approach or move away from each other.

[0057] The two heat-sealing knives 63 are connected to the two moving seats 61 through the elastic component 7. The side walls of the two heat-sealing knives 63 on the opposite side form an arc-shaped heat-sealing cover 64. The two heat-sealing knives 63 abut against each other during heat sealing, and the two heat-sealing covers 64 are tightly attached to the bag body for heat sealing. After the two moving seats 61 drive the two heat-sealing knives 63 to abut against each other, the two moving seats 61 can continue to move, so the elastic component 7 can increase the squeezing force on the bag body, or, after the two moving seats 61 move away from each other, the two heat-sealing knives 63 can continue to heat-seal the bag body under the action of the elastic component 7, thereby extending the heat-sealing time and enhancing the heat-sealing effect, thereby improving the heat-sealing quality and efficiency.

[0058] There are two elastic components 7 located on the same heat sealing knife 63, and the elastic components 7 include a fixed plate 71, a moving rod 72, a spring 73 and a moving nut 74. The fixed plate 71 is fixedly installed on the side wall of the moving seat 61, the moving rod 72 is fixedly installed on the heat sealing knife 63 and slidably penetrates the fixed plate 71, and the moving direction of the moving rod 72 is parallel to the moving direction of the moving seat 61; the spring 73 is sleeved on the moving rod 72 and presses on the fixed plate 71 and the heat sealing knife 63 and is in a compressed state. The moving nut 74 is threadedly connected to the moving rod 72 and presses on the fixed plate 71 for positioning under the action of the spring 73.

[0059] The heating assembly includes a heating wire and a thermal insulation layer. A heating chamber is opened in the heat sealing knife 63. The heating wire is fixedly installed in the heating chamber. The side wall of the heat sealing knife 63 in contact with the bag body is the heat sealing surface 64. The thermal insulation layer is coated on the outer side wall of the heat sealing knife 63 for insulation. The thermal insulation layer exposes the heat sealing surface 64 to the outside and enables the heat sealing surface 64 to be heat-sealed.

[0060] The working principle of the embodiment of the present application is as follows: Design, plate making and printing bag making materials, compound the printed materials, cut and bag the compounded materials; heat seal to complete the production of spout bags.

[0061] The grabbing seat 22 moves so that the suction nozzle moves into the snap-in groove 222, the annular airbag 23 is inflated to position the suction nozzle, the grabbing seat 22 moves the suction nozzle to the bag body, the two movable parts 51 drive the two suction cups 52 to adsorb the bag body and then open the bag body opening, the grabbing seat 22 drives the suction nozzle to insert into the bag body opening, the two pushing parts 62 start to drive the two heat sealing knives 63 to approach the bag body for heat sealing, after the heat sealing is completed, the heat sealing knife 63 moves away from the bag body, the driving part 27 drives the suction nozzle and the bag body to rotate, and at the same time the two suction cups 52 rotate to drive the bag body to rotate, and then continue heat sealing, end heat sealing, or continue rotation and heat sealing.

[0062] After the heat sealing is completed, the driving member 27 drives the suction nozzle, the bag body and the opening component 5 to the initial state, the annular airbag 23 is deflated to loosen the clamping of the suction nozzle, the movable seat 61 moves away from the suction nozzle and makes the suction nozzle move to the outside of the clamping groove 222, and the gas is blown to the heat sealing position through the air outlet 225 for cooling, and the two suction cups 52 release the adsorption force on the bag body, and the bag body continues to move to perform subsequent processes, thereby completing the heat sealing process of the suction nozzle bag and improving the heat sealing quality and efficiency.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The production process of round mouth self-supporting nozzle bag is characterized by: The following steps are involved: Design, plate making and printing bag making materials; Compounding, compounding the printed materials; Cutting and bagging: cutting and bagging the composite materials, and leaving openings on the bag bodies; Heat sealing, wherein the gripping mechanism (2), the heat sealing mechanism (6) and the opening component (5) are all arranged on the sliding seat (1) and moved under the drive of the sliding seat (1); the gripping mechanism (2) first grips the suction nozzle and moves it to the bag body; the opening component (5) starts to absorb the bag body and opens the opening; the gripping mechanism (2) inserts one end of the suction nozzle into the opening and maintains the position of the suction nozzle; the heat sealing mechanism (6) starts to heat seal the bag body at least twice, and during the last heat sealing, the gripping structure drives the bag body, the suction nozzle and the opening component (5) to rotate a certain angle before heat sealing; after the heat sealing is completed, the gripping mechanism (2) releases the clamping force on the suction nozzle and separates from the suction nozzle, thereby completing the production of the suction nozzle bag.

2. The process for making a round-mouth self-supporting nozzle bag according to claim 1, characterized in that: The gripping mechanism (2) comprises: A rotating seat (21) rotatably disposed on the sliding seat (1); The grab seat (22) is slidably arranged on the rotating seat (21) in a direction approaching or moving away from the bag body, and the grab seat (22) is provided with a clamping groove (222) having a diameter larger than the suction nozzle and for one end of the suction nozzle to extend into, and the rotating seat (21) drives the grab seat (22) and the suction nozzle to rotate and is used to adjust the angle of the suction nozzle and the bag body, and the clamping groove (222) is provided with an annular mounting groove (223); the opening assembly (5) is arranged on the rotating seat (21); An annular airbag (23) is mounted in the mounting groove (223) by snap-fitting; A driving assembly (24), used for driving the rotating seat (21) to rotate; A moving assembly (3) for driving the grabbing seat (22) to move; The control component (4) is connected to the annular airbag (23) and is used to control the annular airbag (23) to be inflated to clamp and position the suction nozzle, or to be used to deflate the annular airbag (23) to release the clamping force on the suction nozzle after contraction.

3. The process for making a round-mouth self-supporting nozzle bag according to claim 2, characterized in that: The control component (4) comprises: An air inlet pipe (41) and an air outlet pipe (42) are arranged on the annular air bag (23) and are provided with an air inlet valve (411) and an air outlet valve (421); An air intake hose (43) and an air outlet hose (44) are respectively arranged on the air intake pipe (41) and the air outlet pipe (42); the air intake hose (43) is arranged on the sliding seat (1) and is used to input gas and stops inputting gas after the gas pressure reaches a specified value; the air outlet valve (421) opens and allows the gas in the annular airbag (23) to be output through the air outlet hose (44).

4. The process for making a round-mouth self-supporting nozzle bag according to claim 3, characterized in that: The clamping groove (222) is provided with air outlet holes (225) for outputting gas to push the suction nozzle out of the clamping groove (222) or for cooling the heat-sealed portion at intervals, the grabbing seat (22) is provided with an air supply pipe (46) connected to the plurality of air outlet holes (225) and the air inlet hose (43), the air supply pipe (46) is provided with an air supply valve (47) for opening and closing, and the air outlet hose (44) is connected to the air supply pipe (46) located between the air supply valve (47) and the grabbing seat (22).

5. The process for making a round-mouth self-supporting nozzle bag according to claim 2, characterized in that: The driving assembly (24) comprises: A main gear (25) is arranged on the rotating seat (21); A driving member (27) is arranged on the sliding seat (1); A secondary gear (26) is arranged on an output shaft of a driving member (27) and meshes with the main gear (25), wherein the driving member (27) is used to drive the secondary gear (26) to rotate.

6. The process for making a round-mouth self-supporting nozzle bag according to claim 2, characterized in that: The mobile component (3) comprises: A movable plate (31) is arranged on the grabbing seat (22); The moving member (32) is arranged on the rotating seat (21) and is used to drive the moving plate (31) to move.

7. The process for making a round-mouth self-supporting nozzle bag according to claim 2, characterized in that: The opening component (5) comprises: Two movable members (51) are arranged on the rotating seat (21) and the piston rods are arranged opposite to each other; Two suction cups (52) are arranged on the piston rods of the two movable parts (51) and are used to absorb and position the two opposite surfaces of the bag body.

8. The process for making a round-mouth self-supporting nozzle bag according to claim 1, characterized in that: The heat sealing mechanism (6) comprises: Two movable seats (61) are slidably arranged on the sliding seat (1); A pushing member (62) for driving the two movable seats (61) to move closer to or farther from each other; Two heat-sealing knives (63) are both arranged on two movable seats (61) via elastic components (7) and are provided with arc-shaped heat-sealing surfaces (64) for heat-sealing the bag body; A heating component is used to heat the two heat sealing knives (63).

9. The process for making a round-mouth self-supporting nozzle bag according to claim 8, characterized in that: The elastic component (7) comprises: A fixed plate (71) is disposed on the movable seat (61); A moving rod (72) is disposed on the heat sealing knife (63) and is slidably disposed on the fixed plate (71); A spring (73) is sleeved on the moving rod (72) and pressed against the fixed plate (71) and the heat sealing knife (63) in a compressed state; The movable nut (74) is threadedly connected to the movable rod (72) and is pressed against the fixed plate (71) for positioning under the action of the spring (73).

10. The process for making a round-mouth self-supporting nozzle bag according to claim 8, characterized in that: The heating assembly comprises: A heating wire, arranged inside the heat sealing knife (63) for heating; The heat-insulating layer is coated on the outer side wall of the heat-sealing knife (63) to provide heat insulation and exposes the heat-sealing surface (64) to achieve heat sealing.

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