A filling and sealing integrated machine

Abstract

This invention provides an integrated filling and sealing machine for the field of filling and sealing technology, comprising: a rotating workstation; six sets of jigs evenly spaced at equal angles, used to support aluminum-plastic tubes; a clamping mechanism; a workstation base plate fixed to the frame, on which functional modules that cooperate with each jig are provided; a synchronous loading and unloading mechanism for loading and unloading; and a guide tube for adjusting the height of the upper and lower sliding seats. This invention enables integrated continuous operation, improving production efficiency by integrating multiple processes such as loading and unloading, piercing, sealing, capping, rotary filling, and sealing. Seamless connection between processes is achieved through the intermittent rotation of the rotating workstation, eliminating the need for additional material transfer mechanisms, significantly shortening the processing cycle, improving production efficiency, and enhancing synergy.

Description

Technical Field

[0001] This application relates to the field of filling and sealing technology, and in particular to an integrated filling and sealing machine. Background Technology

[0002] Aluminum-plastic composite (APC) flexible tubes are widely used in packaging for cosmetics, pharmaceuticals, and food due to their excellent sealing, light-blocking, and flexibility. Currently, the filling, sealing, and capping processes of APC flexible tubes are typically completed in stages using multiple independent machines, or through simple assembly lines connecting multiple workstations. Each workstation is independently controlled, and the transfer of APC tubes between workstations requires additional conveying and positioning mechanisms. This results in significant wasted time on transfer and sorting, leading to low production efficiency and a tendency for APC tubes to shift or become damaged.

[0003] To solve the above problems, it is urgent to develop an integrated filling and sealing machine that combines multiple processes, has good coordination, and is precise in positioning, so as to realize the fully automated continuous operation of aluminum-plastic pipes from loading and unloading, piercing, sealing, capping, filling to sealing. Summary of the Invention

[0004] The purpose of this application is to address the technical problems of multiple transfer steps and low production efficiency in existing aluminum-plastic pipe filling and sealing operations, and to provide a filling and sealing integrated machine compared to existing technologies, including: A rotating workstation panel is rotatably connected to the machine frame; The six sets of fixtures are evenly distributed at equal angles on the circumference of the rotating work plate, and the fixtures are used to support the aluminum-plastic pipes. A clamping mechanism is used to fix the aluminum-plastic tube and the threaded end cap and adjust the distance between them. The clamping mechanism includes a bracket coaxially fixed to the top of the rotating worktable. The bracket is provided with slide rods that correspond one-to-one with the jig. An upper slide seat and a lower slide seat are slidably connected to the slide rods respectively. The upper slide seat is provided with a pressing component for pressing down the aluminum-plastic tube, and the lower slide seat is provided with a supporting component for supporting the threaded end cap. The workstation base plate is fixed on the frame. The workstation base plate is provided with functional modules that cooperate with the jigs one by one. The functional modules include, in sequence according to the rotation direction of the rotating workstation plate, the loading and unloading workstation, the piercing workstation, the sealing workstation, the capping workstation, the rotating filling workstation, and the tail sealing workstation. A synchronous loading and unloading mechanism is set on one side of the loading and unloading station for loading and unloading materials; A guide tube is fixed to the top of the workstation base plate and coaxially arranged with the rotating workstation disk. The guide tube is used to adjust the height of the upper slide and the lower slide.

[0005] Furthermore, the loading and unloading station includes a retraction cylinder fixed on the station base plate, and the output end of the retraction cylinder is fixed with an actuation pad. The puncture station includes a puncture cylinder fixed on the station base plate, and a pressure pad is fixed to the output end of the puncture cylinder. The sealing station includes two sets of symmetrically arranged feeding rollers fixed on the station base plate, an aluminum film strip is provided between the two sets of feeding rollers, and a sealing cylinder is also fixed between the two sets of feeding rollers. A hot melt block is fixed at the output end of the sealing cylinder. The cover station includes a cover feeding guide groove and a cover cylinder fixed on the station base plate. The cover feeding guide groove is used to support the threaded end cap to be fed. One end of the cover feeding guide groove is provided with a horizontal through feeding notch. The output end of the cover cylinder is fixed with a pusher block that cooperates with the feeding notch. The rotary filling station includes an arc-shaped linear module fixed on the station base plate. A Z-axis linear module is fixed to the output end of the arc-shaped linear module. A tightening motor is fixed to the output end of the Z-axis linear module. A docking block is fixed to the output end of the tightening motor. A rotary feeding ring is rotatably connected to the top of the docking block. The sealing station includes a sealing bracket fixed on the station base plate. Two sets of arc-shaped telescopic arms are symmetrically arranged on the top of the sealing bracket, and a sealing pressure plate is fixed at the output end of the arc-shaped telescopic arms.

[0006] Furthermore, a tension spring is clamped between the upper slide and the lower slide, the tension spring is sleeved on the slide rod, and the tension spring has an elastic force that drives the upper slide and the lower slide away from each other. The lower pressing component includes a pressing rod rotatably connected to one end of the upper slide block. The pressing rod has an overall tapered structure that is smaller at the bottom and larger at the top. The friction coefficient of the top surface of the pressing rod is greater than that of the bottom surface. The top of the pressing rod is also provided with a filling interface that cooperates with the docking block. A puncture needle that cooperates with the lower pressing pad is also slidably connected inside the pressing rod. A return spring is clamped between the puncture needle and the pressing rod. The bottom of the pressure rod is provided with a flexible pressure head, and the top of the flexible pressure head is provided with a puncture port that cooperates with the puncture needle and a filling output port that communicates with the pressure rod.

[0007] Furthermore, the cover is detachably connected to the outer bottom of the sliding seat, and the cover includes a C-shaped groove that matches the threaded end cap. The opening side of the C-shaped groove is opposite to the feeding notch of the cover guide groove. The C-shaped slot is also provided with a through working hole, which is used to cooperate with the hot melt block to lift the aluminum film strip and fix the sealing aluminum film at the end of the thread. The working hole is also used to cooperate with the upward pushing action of the soft pad.

[0008] Furthermore, an upper ball head is fixed to one side of the upper slide block, and a lower ball head is fixed to one side of the lower slide block; The top outer wall of the guide tube is provided with an upper continuous guide groove that mates with the upper ball head, and the bottom outer wall of the guide tube is provided with a lower continuous guide groove that mates with the lower ball head.

[0009] Furthermore, the fixture includes a base fixed on a rotating work plate, an inner sliding sleeve slidably connected inside the base, two sets of torsion springs symmetrically arranged on both sides of the inner wall of the inner sliding sleeve, a flipping support block fixed on each torsion spring, two sets of limiting sliders symmetrically fixed on both sides of the outer wall of the inner sliding sleeve, and a limiting groove that cooperates with the limiting slider on the inner wall of the base. The top of the inner sliding sleeve is provided with an insertion interface that matches the bottom contour of the aluminum-plastic tube, and the flip support block is used to support the bottom of the aluminum-plastic tube.

[0010] Furthermore, a return spring is fixed between the inner sliding sleeve and the top of the base. The return spring has an elastic force that drives the inner sliding sleeve to move upward and closer to the base, and the torsion spring has an elastic force that drives the flipping support block away from the inner sliding sleeve. The base is provided with an anti-interference groove one at its bottom, and the inner sliding sleeve is provided with an anti-interference groove two at its bottom. Both the anti-interference groove one and the anti-interference groove two are used to provide a feeding channel for the aluminum film strip.

[0011] Furthermore, the synchronous loading and unloading mechanism includes a loading conveyor belt and an unloading chute arranged sequentially from top to bottom. A robotic arm is also fixed on one side of the output end of the loading conveyor belt. The robotic arm is used to clamp the aluminum-plastic tube from the loading conveyor belt and place it in the fixture at the loading and unloading station.

[0012] Furthermore, when the aluminum-plastic pipe is fed by the feeding conveyor belt, a threaded end is pre-installed at its open end, and the lower pressure pad and the piercing needle cooperate to open a material port at the threaded end. When the aluminum-plastic tube is unloaded by the unloading trough, one end is sealed with a threaded end cap, and the other end is sealed by a sealing plate to form a sealing part. The unloading trough is inclined and is used to unload the filled product by gravity.

[0013] Compared to existing technologies, the advantages of this application are: This invention features integrated continuous operation, improving production efficiency. It integrates multiple processes such as loading and unloading, piercing, sealing, capping, rotary filling, and tail sealing. Seamless connection between processes is achieved through the intermittent rotation of the rotary workstation plate. No additional material transfer mechanism is required, which greatly shortens the processing cycle, improves production efficiency, and enhances synergy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the top view structure of the rotary workstation disk proposed in this application; Figure 3 This is a front view of the workstation substrate and its components proposed in this application. Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 This is a side view of the workstation substrate and its components proposed in this application. Figure 6 This is an exploded structural diagram of the clamping mechanism proposed in this application; Figure 7 This is a perspective view of the guide tube structure proposed in this application; Figure 8 This is a schematic diagram of the structure of the jig and its mating components proposed in this application; Figure 9 This is a frontal exploded view of the pressing component proposed in this application; Figure 10 This is a schematic diagram of the exploded bottom structure of the pressing component proposed in this application; Figure 11 This is a schematic diagram of the frontal exploded structure of the metallurgical fixture proposed in this application; Figure 12 This is a schematic diagram of the exploded bottom structure of the fixture proposed in this application; Figure 13 This is a schematic cross-sectional view of the aluminum-plastic pipe inserted during the feeding stage of the fixture proposed in this application. Figure 14 This is a schematic cross-sectional view of the aluminum-plastic tube inside the pressing fixture proposed in this application. Figure 15 A cross-sectional structural diagram showing the threaded end cap provided for the upward movement of the support member proposed in this application; Figure 16 This is a schematic diagram of the overall filling and sealing process of this application.

[0015] Explanation of the labels in the diagram: 1. Rack; 2. Rotary workstation panel; 3. Synchronous loading and unloading mechanism; 31. Loading conveyor belt; 32. Unloading chute; 4. Robotic arm; 5. Clamping mechanism; 51. Bracket; 511. Slide rod; 52. Upper slide; 521. Upper ball head; 53. Lower slide; 531. Lower ball head; 54. Tension spring; 55. Lower pressing component; 551. Pressing rod; 552. Filling interface; 553. Return spring; 554. Puncture needle; 555. Flexible pressing head; 556. Puncture port; 557. Filling outlet; 56. Cover component; 561. C-shaped slot; 562. Working hole; 6. Fixture; 61. Base; 611. Limiting groove; 612. Anti-interference groove one; 62. Inner sliding sleeve; 621. Insertion interface; 622. Anti-interference groove two; 623. Limiting slider; 624. Torsion spring; 63. Flipping support block; 64. Reset tension spring; 7. Guide tube; 71. Upper continuous guide groove; 72. Lower continuous guide groove; 8. Workstation base plate; 81. Loading and unloading station; 811. Unloading cylinder; 812. Execution pad; 82. Puncture station; 821. Puncture cylinder; 822. Pressing pad; 83. Sealing station; 831. Feeding roller; 832. Sealing cylinder; 834. Hot melt block; 835. Aluminum film strip; 84. Top cover station; 841. Top cover cylinder; 842. Pushing block; 843. Top cover guide groove; 85. Rotary filling station; 851. Arc-shaped linear module; 852. Z-axis linear module; 853. Tightening motor; 855. Docking block; 854. Rotary feeding ring; 86. Tail sealing station; 861. Tail sealing bracket; 862. Arc-shaped telescopic arm; 863. Tail sealing pressure plate; 9. Filling finished product; 91. Threaded end cap; 92. Aluminum-plastic tube; 921. Tail seal; 93. Threaded end; 931. Inlet; 94. Sealing aluminum film. Detailed Implementation

[0016] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0017] Example: This invention provides a filling and sealing integrated machine. Please refer to [link / reference]. Figure 1 - Figure 16 The system includes a frame 1, a rotating workstation 2, a synchronous loading and unloading mechanism 3, a robotic arm 4, a clamping mechanism 5, a jig 6, a guide tube 7, a workstation base plate 8, and a filled product 9. The filled product 9 includes a threaded end cap 91, an aluminum-plastic tube 92, a threaded end 93, and a sealing aluminum film 94. The threaded end 93 is provided with a material inlet 931, and the aluminum-plastic tube 92 is provided with a sealing end 921. The specific structure is as follows: Please refer to this first. Figure 1 - Figure 2The frame 1 serves as the overall support base for the equipment. The rotating workstation 2 is rotatably connected to the frame 1 and can rotate intermittently around its own axis. Six sets of fixtures 6 are evenly distributed at equal angles on the circumference of the rotating workstation 2 to support the aluminum-plastic pipe 92. The clamping mechanism 5 is coaxially fixed to the top of the rotating workstation 2 to fix the aluminum-plastic pipe 92 and the threaded end cap 91 and adjust the distance between them. The workstation base plate 8 is fixed to the frame 1, and its top is equipped with functional modules that cooperate with the fixtures 6 one by one. The blocks are arranged in sequence according to the rotation direction of the clamping mechanism 5 as loading and unloading station 81, piercing station 82, sealing station 83, top cover station 84, rotary filling station 85 and tail sealing station 86; the synchronous loading and unloading mechanism 3 is set on one side of the loading and unloading station 81 to realize the automatic loading of aluminum-plastic tube 92 and the automatic unloading of the filled finished product 9; the guide tube 7 is fixed on the top of the station base plate 8 and is coaxially arranged with the rotary station disk 2 to adjust the height of the upper slide 52 and the lower slide 53.

[0018] Please refer to this first. Figure 6 - Figure 8 The clamping mechanism 5 includes a bracket 51 coaxially fixed to the top of the rotating worktable 2. The bracket 51 is provided with slide rods 511 corresponding to the fixture 6. An upper slide seat 52 and a lower slide seat 53 are slidably connected to the slide rods 511. The upper slide seat 52 is provided with a pressing member 55 for pressing down the aluminum-plastic tube 92, and the lower slide seat 53 is provided with a supporting member 56 for supporting the threaded end cap 91. A tension spring 54 is clamped between the upper slide seat 52 and the lower slide seat 53. The tension spring 54 is sleeved on the slide rod 511, and the tension spring 54 has an elastic force that drives the upper slide seat 52 and the lower slide seat 53 away from each other.

[0019] Please refer to this first. Figure 9 - Figure 10 The lower pressing component 55 includes a pressing rod 551 rotatably connected to one end of the upper slide block 52. The pressing rod 551 has a tapered structure that is smaller at the bottom and larger at the top. The friction coefficient of the top surface of the pressing rod 551 is greater than that of the bottom surface. The top of the pressing rod 551 is also provided with a filling interface 552 that cooperates with the docking block 855. A puncture needle 554 that cooperates with the lower pressing pad 822 is also slidably connected inside the pressing rod 551. A return spring 553 is clamped between the puncture needle 554 and the pressing rod 551. The bottom of the pressing rod 551 is provided with a flexible pressing head 555. The top of the flexible pressing head 555 is provided with a puncture port 556 that cooperates with the puncture needle 554 and a filling output port 557 that communicates with the pressing rod 551.

[0020] Please refer to this first. Figure 8The cover 56 is detachably connected to the bottom outer side of the sliding seat 53. The cover 56 includes a C-shaped groove 561 that matches the threaded end cap 91. The opening side of the C-shaped groove 561 is opposite to the feeding notch of the cover guide groove 843. The C-shaped groove 561 is also provided with a through working hole 562. The working hole 562 is used to cooperate with the hot melt block 834 to lift the aluminum film strip 835 and fix the sealing aluminum film 94 at the end of the threaded end 93. At the same time, the working hole 562 is also used to cooperate with the upward pushing action of the soft pad 812.

[0021] Please refer to this first. Figure 6 An upper ball head 521 is fixed to one side of the upper slide block 52, and a lower ball head 531 is fixed to one side of the lower slide block 53. The top outer wall of the guide tube 7 is provided with an upper continuous guide groove 71 that mates with the upper ball head 521, and the bottom outer wall of the guide tube 7 is provided with a lower continuous guide groove 72 that mates with the lower ball head 531. The upper slide block 52 and the lower slide block 53 are driven to rise and fall along the slide rod 511 by the sliding of the upper ball head 521 and the lower ball head 531 along the upper and lower continuous guide grooves 71 and 72, respectively. To reduce frictional loss between the ball head and the guide groove, both the upper ball head 521 and the lower ball head 531 are made of high-strength ceramic. The inner walls of the upper continuous guide groove 71 and the lower continuous guide groove 72 are coated with a tungsten carbide wear-resistant coating to reduce the friction coefficient. A grease distributor is integrated inside the guide tube 7. Through the intermittent cycle of the rotating station disk 2 linked by the PLC, solid lubricant is automatically sprayed into the guide groove every 1000 station changes to reduce friction.

[0022] Please refer to this first. Figure 11 - Figure 15 The fixture 6 includes a base 61 fixed on the rotating work plate 2. An inner sleeve 62 is slidably connected inside the base 61. Two sets of torsion springs 624 are symmetrically arranged on both sides of the inner wall of the inner sleeve 62. A flip support block 63 is fixed on each torsion spring 624. Two sets of limiting sliders 623 are symmetrically fixed on both sides of the outer wall of the inner sleeve 62. The inner wall of the base 61 is provided with a limiting groove 611 that cooperates with the limiting slider 623. The top of the inner sleeve 62 is provided with an insertion interface 621 that matches the bottom contour of the aluminum-plastic tube 92. The flip support block 63 is used to support the bottom of the aluminum-plastic tube 92.

[0023] A reset spring 64 is also fixed between the inner sliding sleeve 62 and the top of the base 61. The reset spring 64 has an elastic force that drives the inner sliding sleeve 62 to move upward and closer to the base 61. The torsion spring 624 has an elastic force that drives the flipping support block 63 away from the inner sliding sleeve 62. The bottom of the base 61 is provided with an anti-interference groove 612, and the bottom of the inner sliding sleeve 62 is provided with an anti-interference groove 622. Both the anti-interference groove 612 and the anti-interference groove 622 are used to provide a feeding channel for the aluminum film strip 835.

[0024] Please refer to this first. Figure 2 - Figure 5The loading and unloading station 81 includes a discharge cylinder 811 fixed on the station base plate 8. The output end of the discharge cylinder 811 is fixed with an actuation pad 812, which is used to push the finished filling product 9 out of the jig 6 and send it into the discharge groove 32.

[0025] The puncture station 82 includes a puncture cylinder 821 fixed on the station base plate 8. The output end of the puncture cylinder 821 is fixed with a pressure pad 822, which is used to drive the puncture needle 554 to move downward and open a material port 931 at the threaded end 93.

[0026] The sealing station 83 includes two sets of symmetrically arranged feeding rollers 831 fixed on the station base plate 8. An aluminum film strip 835 is provided between the two sets of feeding rollers 831. A sealing cylinder 832 is also fixed between the two sets of feeding rollers 831. A hot melt block 834 is fixed at the output end of the sealing cylinder 832, which is used to partially heat melt the aluminum film strip 835 and fix it to the port of the threaded end 93 to form a sealing aluminum film 94.

[0027] The cover station 84 includes a cover supply guide groove 843 and a cover cylinder 841 fixed on the station base plate 8. The cover supply guide groove 843 is used to support the threaded end cap 91 to be loaded. One end of the cover supply guide groove 843 is provided with a horizontal through-hole for loading. The output end of the cover cylinder 841 is fixed with a pusher block 842 that cooperates with the loading hole for pushing the threaded end cap 91 in the cover supply guide groove 843 into the C-shaped slot 561.

[0028] The rotary filling station 85 includes an arc-shaped linear module 851 fixed on the station base plate 8. A Z-axis linear module 852 is fixed to the output end of the arc-shaped linear module 851. A tightening motor 853 is fixed to the output end of the Z-axis linear module 852. A docking block 855 is fixed to the output end of the tightening motor 853. A rotary feeding ring 854 is rotatably connected to the top of the docking block 855. The rotary feeding ring 854 is used to feed material to the filling interface 552. The tightening motor 853 is used to drive the pressure rod 551 to rotate, thereby driving the threaded end cap 91 to screw and fix with the threaded end 93.

[0029] The sealing station 86 includes a sealing bracket 861 fixed on the station base plate 8. Two sets of arc-shaped telescopic arms 862 are symmetrically arranged on the top of the sealing bracket 861. A sealing pressure plate 863 is fixed at the output end of the arc-shaped telescopic arm 862, which is used to squeeze and seal the free end of the aluminum-plastic tube 92 to form a sealing part 921.

[0030] Please refer to this first. Figure 1The synchronous loading and unloading mechanism 3 includes a loading conveyor belt 31 and an unloading trough 32 arranged sequentially from top to bottom. A robot arm 4 is also fixed on one side of the output end of the loading conveyor belt 31. The robot arm 4 is used to clamp the aluminum-plastic tube 92 from the loading conveyor belt 31 and place it in the fixture 6 at the loading and unloading station 81. The unloading trough 32 is inclined and is used to gravity unload the finished filling product 9.

[0031] Please refer to this first. Figure 16 When the aluminum-plastic pipe 92 is fed by the feeding conveyor belt 31, its open end is pre-installed with a threaded end 93; when the aluminum-plastic pipe 92 is unloaded by the unloading groove 32, one end is sealed with a threaded end cap 91, and the other end is sealed by the sealing pressure plate 863 to form a sealing part 921.

[0032] The filling and sealing integrated machine of this invention uses "intermittent indexing of the rotating workstation disk + precise linkage of execution components at each workstation" as its core control logic. The PLC controller triggers the actions of each component through a preset program. Each 60° intermittent rotation of the rotating workstation disk 2 corresponds to a workstation switch for six sets of jigs. Each workstation synchronously completes one "wait-execute-reset" cycle, realizing continuous automated filling and sealing processing of aluminum-plastic tubes 92. The specific working principle of each process is as follows: The core of the feeding process is to achieve the non-damaging transfer and positioning of the aluminum-plastic tube 92 from the conveyor belt to the jig 6. The trigger signal is "the previous cycle of unloading is completed + the rotating station plate 2 moves the empty jig to the loading and unloading station 81". Specifically, the feeding conveyor belt 31 adopts belt conveyor + photoelectric sensor positioning. When the aluminum-plastic tube 92 with the pre-installed threaded end 93 reaches the end positioning point, the photoelectric sensor sends a signal to the controller, the conveyor belt stops running, and the axis of the aluminum-plastic tube 92 is aligned with the axis of the insertion interface 621 of the jig 6. At this time, the open end of the aluminum-plastic tube 92 with the threaded end is facing up and the closed end is facing down. The robotic arm 4 uses a three-jaw flexible gripper with a rubber anti-slip layer wrapped on the inside of the gripper. The controller drives the robotic arm 4 to move along the XYZ three axes. The gripper wraps around and grabs the aluminum-plastic tube 92 from 1 / 3 of the length from the closed end. The gripping pressure is set to 0.3MPa to avoid damaging the aluminum-plastic tube and to prevent it from slipping. Then the robotic arm 4 moves the aluminum-plastic tube 92 to directly above the fixture 6. The robotic arm 4 drives the aluminum-plastic tube 92 downward to insert into the insertion interface 621 of the inner sliding sleeve 62. The flipping support block 63 flips inward using the elastic force of the torsion spring 624 until the bottom of the aluminum-plastic tube 92 is completely inserted into the insertion interface 621. At this time, the flipping support block 63 opens outward under the elastic force of the torsion spring 624, and its top support surface fits against the annular step of the aluminum-plastic tube 92 to achieve axial support of the aluminum-plastic tube 92. After the pressure sensor at the bottom of the jig 6 detects that the supporting pressure of the aluminum-plastic tube 92 is ≥0.1MPa, it sends a "feeding completed" signal to the controller. The controller drives the rotary workstation 2 to rotate 60° clockwise around the axis, which drives the aluminum-plastic tube 92 into the piercing station 82. At the same time, the next empty jig moves to the loading and unloading station 81 to wait for feeding.

[0033] Puncture process: The core of the puncture process is to open the material port 931 at the center of the threaded end 93 to prepare for subsequent filling. The trigger signal is "the positioning pin of the rotating station plate 2 is inserted into the positioning hole of the puncture station" to ensure that the aluminum-plastic tube and the puncture needle are coaxial. Specifically, after the aluminum-plastic tube 92 enters the puncture station 82, the center of the lower pressure pad 822, the center of the puncture needle 554, and the center of the threaded end 93 are on the same vertical line. After receiving the trigger signal, the puncture cylinder 821 drives the lower pressure pad 822 to move downward, achieving precise docking between the puncture needle 554 and the lower pressure pad 822. As it continues to move downward, the lower pressure pad 822 pushes the puncture needle 554 to overcome the elastic force of the return spring 553 and slide downward along the inner hole of the pressure rod 551. The tip of the puncture needle 554 passes through the puncture port 556 of the flexible pressure head 555 and the central area of ​​the threaded end 93 in sequence until the discharge port 931 is opened. After puncture is completed, the puncture cylinder 821 drives the lower pressure pad 821 to return upward. The puncture needle 554 retracts upward synchronously under the return elastic force of the return spring 553. The needle stops after the tip is completely withdrawn from the discharge port 931. After the puncture cylinder 821 is reset to the position, it sends a signal, and the controller drives the rotary workstation 2 to rotate 60° again. The aluminum-plastic tube 92 enters the sealing workstation 83, and at the same time, the aluminum-plastic tube from the previous process enters the puncture workstation, forming a continuous operation.

[0034] Sealing process: The core of the sealing process is to seal the material opening 931 through hot-melt aluminum film. Specifically, the two sets of feeding rollers 831 are the unwinding roller and the winding roller. The unwinding roller releases the aluminum film strip 835, which is a composite structure of "PET base layer + aluminum foil hot-melt layer". The winding roller recycles the used aluminum film waste. The controller drives the unwinding roller to rotate, and the aluminum film strip 835 passes through the channel formed by the anti-interference groove 1 612 and the anti-interference groove 2 622 until the hot-melt layer of the aluminum film strip 835 is aligned with the port of the threaded end 93. At this time, the photoelectric sensor detects the positioning hole of the aluminum film strip 835, and the unwinding roller stops rotating. The sealing cylinder 832 drives the hot melt block 834 to move upward. The heating surface temperature of the hot melt block 834 is preset to 180°C. It passes through the working hole 562 of the cover piece 56 and presses the aluminum film strip 835 to fit against the end face of the threaded end 93. The hot melt block 834 maintains a pressure of 0.4MPa and a temperature of 3 seconds, so that the hot melt layer of the aluminum film strip is fused with the plastic surface of the threaded end 93 to form a sealing aluminum film 94. The hot melt block 834 has an annular cutter blade that extends 0.2mm above the heating surface. In the final stage of the hot melt process, the annular cutter cuts the aluminum film strip 835 under the additional thrust of the cylinder, separating the sealing aluminum film 94 from the main body of the aluminum film strip. Subsequently, the sealing cylinder 832 drives the hot melt block 834 to reset, and the winding roller rotates to recycle the waste aluminum film strip. The recycling length matches the size of the single sealing aluminum film to ensure that the new aluminum film strip is in place for the next sealing.

[0035] The core of the capping process is to precisely insert the threaded end cap 91 into the support cap 56 and align it coaxially with the threaded end 93 of the aluminum-plastic tube 92. Specifically: The feeding guide groove 843 uses a vibratory feeder to feed the material. The threaded end cap 91 is oriented and arranged in the vibratory feeder through the guide structure of the spiral track. Then it slides along the feeding guide groove 843 to the feeding notch at the end. At this time, the axis of the end cap is aligned with the axis of the C-shaped slot 561. The material blocking cylinder in the guide groove temporarily locks the end cap. After the material-blocking cylinder is unlocked, the upper cover cylinder 841 drives the pusher block 842 to push horizontally. The pushing surface of the pusher block 842 fits against the outer side of the threaded end cover 91, pushing the threaded end cover 91 from the cover-supply guide groove 843 into the C-shaped slot 561. The inner diameter of the C-shaped slot 561 is 0.3mm larger than the outer diameter of the end cover, and the inner wall of the slot is provided with multiple evenly distributed elastic protrusions. After the threaded end cover 91 enters the C-shaped slot 561, it is limited by the elastic protrusions, realizing the circumferential positioning of the threaded end cover 91 and preventing rotation. After the threaded end cap 91 is in place, the pusher block 842 is reset under the drive of the cylinder, the blocking cylinder of the cover guide groove 843 unlocks the next end cap, enters the waiting state, and sends a "covering completed" signal to the controller at the same time.

[0036] Rotary filling process: The rotary filling process is the core process, which realizes the simultaneous operation of tightening the threaded end cap and accurately filling the material. Specifically, the Z-axis linear module 852 drives the tightening motor 853 to move downward, and the inner hexagonal groove of the docking block 855 engages with the outer hexagonal structure on the top of the pressure rod 551. At the same time, the rotary joint of the rotating feeding ring 854 fits with the sealing surface of the filling interface 552 to form a sealed connection of the material channel. Please refer to this first. Figure 14 - Figure 15 Meanwhile, under the action of the lower continuous guide groove 72 of the guide tube 7, when the sliding seat 53 enters the rotary filling station 85, the sliding seat 53 supports the threaded end cap 91 to move upward and abuts the inner sliding sleeve 62 to move upward simultaneously. At this time, the aluminum-plastic tube 92 moves upward as a whole and is higher than the insertion interface 621. Similarly, at this time, the pressing part 55 moves upward using the upper continuous guide groove 71 and always maintains the state of pressing down the aluminum-plastic tube 92. At this time, the tightening motor 853 drives the pressure rod 551 to rotate. The pressure rod 551 drives the aluminum-plastic tube 92 to rotate synchronously through friction. Because the friction coefficient at the top of the pressure rod is large, it ensures that the power transmission does not slip. The threaded end 93 of the aluminum-plastic tube 92 is screwed into the threaded end cap 91 in the C-shaped slot 561. The screwing torque is monitored in real time by the torque sensor. When the torque reaches the design value, the tightening motor 853 stops rotating, and the tightening is completed. After the tightening action is completed, the rotary workstation 2 continues to rotate 60°. During the rotation of the rotary workstation 2, the arc-shaped linear module 851 drives the Z-axis linear module 852 to move along the arc track, so that the axis of the tightening motor 853 is aligned with the axis of the aluminum-plastic pipe 92 and rotates at the same speed as the rotary workstation 2. Subsequently, Z-axis linear module 852 and lower pressure component 55 move upward synchronously while maintaining a sealed fit, causing pressure rod 551 to gradually detach from aluminum-plastic tube 92. During this process, material conveying pump opens solenoid valve, and material is injected into aluminum-plastic tube 92 through rotating feeding ring 854, filling interface 552, inner hole of pressure rod 551, and filling output port 557. After reaching the set amount, solenoid valve closes, and filling stops. After tightening and filling are completed, the Z-axis linear module 852 drives the tightening motor 853 to reset upwards, and the arc-shaped linear module 851 drives the filling mechanism back to the initial position, waiting for the next cycle.

[0037] Sealing process: The core is to compress the free end of the aluminum-plastic tube 92 into a sealed end part 921. Specifically, after the aluminum-plastic tube 92 enters the sealing station 86, the arc-shaped telescopic arms 862 on both sides of the sealing bracket 861 are extended by cylinders, so that the free end of the aluminum-plastic tube 92 to be sealed is aligned and hot-pressed by the sealing pressure plate 863. The sealing pressure plate 863 has an internal electric heating tube, so that the aluminum layer and the plastic layer of the aluminum-plastic tube 92 are fused and sealed. After the sealing is completed, the arc-shaped telescopic arms 862 drive the sealing pressure plate 863 to reset, and the sealing pressure plate 863 cools down to room temperature, waiting for the next aluminum-plastic tube 92 to enter.

[0038] Unloading Process: The core of the unloading process is to remove the finished product 9 from the jig 6 and send it into the unloading trough 32. Specifically, when the rotating station plate 2 returns to the loading / unloading station 81, the upper ball head 521 of the upper slide 52 enters the upward inclined section of the upper continuous guide groove 71, and the upper slide 52 resets upward along the slide rod 511. At the same time, the lower ball head 531 of the lower slide 53 enters the downward inclined section of the lower continuous guide groove 72, and the lower slide 53 resets downward. During this process, the unloading cylinder 811 drives the actuating pad 812 to move upward, and the actuating pad 812 passes through the cover piece. The working hole 562 of 56 and the inner hole of the fixture 6 push upward from the bottom of the threaded end cap 91 of the aluminum-plastic tube 92; when the finished product 9 moves upward, after being pushed out of the fixture 6, the finished product 9 slides along the inclined guide surface of the ejector groove 32 at an angle of 30°. Because the inner wall of the ejector groove 32 is smooth and covered with polytetrafluoroethylene coating, the finished product can slide naturally to the collection box at the end by gravity; at the same time, the inner sliding sleeve 62 is reset upward under the elastic force of the reset spring 64, and the flipping support block 63 is opened under the action of the torsion spring 624, returning to the state of waiting to be loaded.

[0039] The above seven processes are controlled in a closed loop by a PLC controller to achieve action, detection, and feedback. Each process has low action delay and high processing efficiency of a single machine.

[0040] This invention integrates continuous operation, improves production efficiency, and integrates multiple processes such as loading and unloading, piercing, sealing, capping, rotary filling, and sealing. Seamless connection between processes is achieved through the intermittent rotation of the rotary workstation plate 2, eliminating the need for additional material transfer mechanisms, significantly shortening the processing cycle, improving production efficiency, and enhancing synergy. By cooperating with the guide tube 7 and the upper ball head 521 and lower ball head 531, the lifting and lowering of the upper slide 52 and the lower slide 53 are precisely controlled to ensure the coaxiality of the threaded end cap 91 and the threaded end 93; the rotary filling station 85 synchronizes the capping and filling actions, which not only ensures the installation of the threaded end cap 91, but also avoids material leakage during the filling process and improves the product processing accuracy.

[0041] The filling and sealing machine of this embodiment can be applied to aluminum-plastic hoses of different specifications. Only by replacing the cover piece 56 and adjusting the spacing of the flip support block 63 of the jig 6, it can meet the processing requirements of aluminum-plastic tubes 92 of different diameters and lengths and threaded end caps 91 of different specifications. It has strong adaptability and is easy to operate.

[0042] The above description is only the best implementation method adopted in this application in combination with current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A filling and sealing integrated machine, characterized in that, include: The rotating workstation plate (2) is rotatably connected to the frame (1); The six sets of the fixtures (6) are evenly distributed at equal angles on the circumference of the rotating work plate (2). The fixtures (6) are used to support the aluminum-plastic pipe (92). The clamping mechanism (5) is used to fix the aluminum-plastic tube (92) and the threaded end cap (91) and adjust the distance between them. The clamping mechanism (5) includes a bracket (51) coaxially fixed to the top of the rotating work plate (2). The bracket (51) is provided with a slide rod (511) corresponding to the fixture (6). The slide rod (511) is slidably connected with an upper slide seat (52) and a lower slide seat (53). The upper slide seat (52) is provided with a pressing part (55) for pressing down the aluminum-plastic tube (92). The lower slide seat (53) is provided with a cover part (56) for supporting the threaded end cap (91). The workstation base plate (8) is fixed on the frame (1). The workstation base plate (8) is provided with functional modules that cooperate with the jig (6). The functional modules include, in sequence according to the rotation direction of the rotating workstation plate (2), the loading and unloading workstation (81), the piercing workstation (82), the sealing workstation (83), the top cover workstation (84), the rotating filling workstation (85), and the tail sealing workstation (86). The synchronous loading and unloading mechanism (3) is set on one side of the loading and unloading station (81) for loading and unloading materials; The guide tube (7) is fixed to the top of the workstation base plate (8) and coaxially arranged with the rotating workstation disk (2). The guide tube (7) is used to adjust the height of the upper slide (52) and the lower slide (53).

2. The filling and sealing integrated machine according to claim 1, characterized in that, The loading and unloading station (81) includes a discharge cylinder (811) fixed on the station base plate (8), and the output end of the discharge cylinder (811) is fixed with an actuation pad (812). The puncture station (82) includes a puncture cylinder (821) fixed on the station base plate (8), and a pressure pad (822) is fixed at the output end of the puncture cylinder (821). The sealing station (83) includes two sets of symmetrically arranged feeding rollers (831) fixed on the station base plate (8), an aluminum film strip (835) is provided between the two sets of feeding rollers (831), and a sealing cylinder (832) is also fixed between the two sets of feeding rollers (831). A hot melt block (834) is fixed at the output end of the sealing cylinder (832). The cover station (84) includes a cover feeding guide groove (843) and a cover cylinder (841) fixed on the station base plate (8). The cover feeding guide groove (843) is used to support the threaded end cap (91) to be fed. One end of the cover feeding guide groove (843) is provided with a horizontal through feeding notch. The output end of the cover cylinder (841) is fixed with a pusher block (842) that cooperates with the feeding notch. The rotary filling station (85) includes an arc-shaped linear module (851) fixed on the station base plate (8). A Z-axis linear module (852) is fixed to the output end of the arc-shaped linear module (851). A tightening motor (853) is fixed to the output end of the Z-axis linear module (852). A docking block (855) is fixed to the output end of the tightening motor (853). A rotary feeding ring (854) is rotatably connected to the top of the docking block (855). The sealing station (86) includes a sealing bracket (861) fixed on the station base plate (8). The top of the sealing bracket (861) is symmetrically provided with two sets of arc-shaped telescopic arms (862). The output end of the arc-shaped telescopic arms (862) is fixed with a sealing pressure plate (863).

3. The filling and sealing integrated machine according to claim 2, characterized in that, A tension spring (54) is sandwiched between the upper slide (52) and the lower slide (53). The tension spring (54) is sleeved on the slide rod (511). The tension spring (54) has an elastic force that drives the upper slide (52) and the lower slide (53) away from each other. The lower pressing component (55) includes a pressing rod (551) rotatably connected to one end of the upper slide (52). The pressing rod (551) has a tapered structure that is smaller at the bottom and larger at the top. The friction coefficient of the top surface of the pressing rod (551) is greater than that of the bottom surface. The top of the pressing rod (551) is also provided with a filling interface (552) that cooperates with the docking block (855). A puncture needle (554) that cooperates with the lower pressing pad (822) is also slidably connected inside the pressing rod (551). A return spring (553) is clamped between the puncture needle (554) and the pressing rod (551). The bottom of the pressure rod (551) is provided with a flexible pressure head (555), and the top of the flexible pressure head (555) is provided with a puncture port (556) that cooperates with the puncture needle (554) and a filling output port (557) that communicates with the pressure rod (551).

4. The filling and sealing integrated machine according to claim 2, characterized in that, The cover (56) is detachably connected to the bottom of the outer side of the sliding seat (53). The cover (56) includes a C-shaped groove (561) that matches the threaded end cap (91). The opening side of the C-shaped groove (561) is opposite to the feeding notch of the cover guide groove (843). The C-shaped slot (561) is also provided with a through working hole (562). The working hole (562) is used to cooperate with the hot melt block (834) to lift the aluminum film strip (835) and fix the sealing aluminum film (94) at the end of the threaded end (93). The working hole (562) is also used to cooperate with the rising and pushing action of the soft pad (812).

5. The filling and sealing integrated machine according to claim 2, characterized in that, An upper ball head (521) is fixed on one side of the upper slide (52), and a lower ball head (531) is fixed on one side of the lower slide (53). The top outer wall of the guide tube (7) is provided with an upper continuous guide groove (71) that cooperates with the upper ball head (521), and the bottom outer wall of the guide tube (7) is provided with a lower continuous guide groove (72) that cooperates with the lower ball head (531).

6. The filling and sealing integrated machine according to claim 2, characterized in that, The fixture (6) includes a base (61) fixed on a rotating work plate (2), an inner sleeve (62) slidably connected inside the base (61), two sets of torsion springs (624) symmetrically arranged on both sides of the inner wall of the inner sleeve (62), a flipping support block (63) fixed on each torsion spring (624), two sets of limiting sliders (623) symmetrically fixed on both sides of the outer wall of the inner sleeve (62), and a limiting groove (611) that cooperates with the limiting slider (623) on the inner wall of the base (61). The top of the inner sleeve (62) is provided with an insertion interface (621) that matches the bottom contour of the aluminum-plastic tube (92), and the flip support block (63) is used to support the bottom of the aluminum-plastic tube (92).

7. The filling and sealing integrated machine according to claim 6, characterized in that, A reset spring (64) is also fixed between the top of the inner sliding sleeve (62) and the base (61). The reset spring (64) has an elastic force that drives the inner sliding sleeve (62) to move upward and closer to the base (61). The torsion spring (624) has an elastic force that drives the flip support block (63) away from the inner sliding sleeve (62). The base (61) has an anti-interference groove 1 (612) at its bottom and the inner sliding sleeve (62) has an anti-interference groove 2 (622) at its bottom. Both the anti-interference groove 1 (612) and the anti-interference groove 2 (622) are used to provide a feeding channel for the aluminum film strip (835).

8. The filling and sealing integrated machine according to claim 2, characterized in that, The synchronous loading and unloading mechanism (3) includes a loading conveyor belt (31) and a discharge chute (32) arranged from top to bottom. A robot (4) is also fixed on one side of the output end of the loading conveyor belt (31). The robot (4) is used to clamp the aluminum-plastic pipe (92) from the loading conveyor belt (31) and place it in the fixture (6) at the loading and unloading station (81).

9. A filling and sealing integrated machine according to claim 8, characterized in that, When the aluminum-plastic pipe (92) is fed by the feeding conveyor belt (31), a threaded end (93) is pre-installed at its open end. The lower pressure pad (822) and the piercing needle (554) cooperate to open a material port (931) at the threaded end (93). When the aluminum-plastic tube (92) is unloaded by the unloading groove (32), one end is sealed with a threaded end cap (91), and the other end is sealed by a sealing plate (863) to form a sealing part (921). The unloading groove (32) is set at an angle to perform gravity unloading of the filled finished product (9).

Images