A packaging taping machine

Abstract

This invention relates to a packaging sealing machine, comprising a frame and a conveyor line, a bag opening lifting mechanism, a box-opening mechanism, and a packaging sealing mechanism mounted on the frame. The packaging sealing mechanism includes a frame and a bag-gripping and twisting assembly and a thread-wrapping and knotting assembly mounted on the frame. This invention achieves bag opening lifting, closing, and sealing through the bag opening lifting mechanism, box-opening mechanism, and packaging sealing mechanism. In particular, the sealing mechanism, through the coordinated operation of the bag-gripping and twisting assembly and the thread-wrapping and knotting assembly, achieves a slip knot seal. Compared to traditional sealing machines that can only create fixed knots, the slip knot allows for the removal of internal materials without the need for tools to damage the packaging during unpacking. Furthermore, the damaged packaging can be reused, saving inner bags, reducing costs, and saving time and effort in operation.

Description

Technical Field

[0001] This invention relates to a packaging sealing machine, belonging to the technical field of packaging sealing equipment structure. Background Technology

[0002] With the continuous development of the packaging industry, the market size of packaging sealing machines is constantly expanding. However, automated sealing equipment has not yet been adopted in the packaging process of the powder coating industry. Currently, packaging sealing machines in other industries mostly use steel wire to tie a tight knot during sealing. This type of knot requires the use of a knife to break the packaging to remove the internal materials. This makes the unpacking process time-consuming and labor-intensive, and the damaged packaging cannot be reused. Summary of the Invention

[0003] The present invention aims to solve the various problems mentioned above, and thus provide a packaging sealing machine that saves time and effort and can tie slip knots.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A packaging sealing machine includes a frame and a conveyor line, a bag opening lifting mechanism, a carton opening mechanism, and a packaging sealing mechanism mounted on the frame; its distinctive feature is that... The packaging sealing mechanism includes a frame and a bag gripping and twisting assembly and a wire winding and knotting assembly configured on the frame; The frame of the mechanism consists of a top plate, a lifting plate and a bottom plate arranged in parallel from top to bottom. The bottom plate and the top plate are connected by several guide columns, and the lifting plate is slidably installed on the guide columns between the top plate and the bottom plate. The bag-gripping and twisting assembly includes a lifting cylinder fixed above the top plate and connected to the lifting plate, and a rotary motor fixed on one side of the lifting plate. The rotary motor drives a rotating main shaft located in the middle of the lifting plate. The rotating main shaft is fixed to the gripper seat below through an opening and closing cylinder, and its cylinder rod is connected to the opening and closing control rod. The upper end of the opening and closing gripper is connected to the gripper seat, the middle part is connected to the opening and closing control rod through a joint, and the bottom is an opening and closing claw. The winding and knotting assembly includes a winding motor, a winding reel, a clamping rod, a fixing plate, a knotting connecting plate, a knotting cylinder, a tensioning cylinder, a locking hook panel, and pneumatic scissors. The winding motor and winding reel are both mounted on the base plate, and the winding motor drives the winding reel to rotate via a belt drive. The clamping rod is fixed below the winding reel, and the clamping rod clamps and releases the wire end via a gripper cylinder. The fixing plate is installed on the inner circumference of the winding reel, and the knotting connecting plate is fixed below the fixing plate. The tensioning cylinder is installed on one side of the knotting connecting plate, and its driving end is connected to a pull ring seat via a pull ring. A locking hook panel is fixed to one side of the pull ring seat, and the inner side of the locking hook panel is rotatably mounted on the outer side of the knotting connecting plate. A locking hook cylinder is installed on the upper part of the locking hook panel, and a locking hook driven and controlled by the locking hook cylinder is installed below it. The locking hook cylinder drives and controls the hook head of the locking hook to flip, so as to adapt to the hook head hole opened on the locking hook panel for contact or disengagement. The tensioning cylinder drives the locking hook panel to rotate so that the hook panel rotates to a suitable position, thereby realizing the attachment or release of the winding. The pneumatic scissors are configured on the equipment bracket by a transverse cylinder.

[0005] Furthermore, the winding and knotting assembly also includes a wire supply assembly configured on the equipment bracket. The wire supply assembly includes a wire supply platform, a wire hopper, a wire threading frame, and a wire routing table configured on the wire supply platform. The bottom of the wire routing table is slidably mounted on the wire supply platform, and one side of the wire routing table is driven and connected by a wire routing cylinder. The wire routing table includes a base, a wire clamping cylinder mounted on the side plate of the base, and a wire clamping block driven and controlled by the wire clamping cylinder and adapted to the surface of the base. The surface of the base is a trapezoidal groove, and the adapting surface of the wire clamping block has a trapezoidal block. The clamping of the wire is achieved by the adaptation of the shapes of the two.

[0006] Furthermore, the box-opening mechanism is used to open the outer box flap to separate it from the inner packaging bag. It includes two sets of box-opening components 1 and 2, which are arranged opposite each other but have different structures. Box-opening component 1 includes a box-opening cylinder 1 installed on the equipment support and a claw 1 set at the end of the box-opening cylinder 1. The claw 1 is composed of a lower flat push plate and an upper clamping plate 1. The flat push plate is used to push the outer box flap downward and fold it over. The front end of the clamping plate 1 has an arc surface to clamp the bag opening. Box-opening component 2 includes a box-opening cylinder 2 fixed on the equipment frame and a claw 2 output and connected to the box-opening cylinder 2. The claw 2 is composed of a lower inclined push plate and an upper clamping plate 2. The inclined push plate is used to push the outer box flap downward and fold it over. The front end of the clamping plate 2 has an arc surface to clamp the bag opening.

[0007] Furthermore, the bag lifting mechanism is configured with four sets, located at the four corners of the box, to adsorb the four corners of the bag and lift it upwards; its structure includes a vertically installed lifting cylinder, a guide slide mounted on the output end of the lifting cylinder, a transverse cylinder mounted on the guide slide, and a snap-fit ​​corner block mounted on the output end of the transverse cylinder; the guide slide is slidably connected to the guide rail on the equipment frame through a slider, the shape of the snap-fit ​​corner block is adapted to snap-fit ​​corners of the box for positioning, and a suction cup is installed at a predetermined position on the snap-fit ​​corner block.

[0008] Furthermore, the conveyor line consists of a horizontal conveying section and a lifting section. The horizontal conveying section includes a conveyor motor, a transmission chain driven by the conveyor motor, and conveyor rollers driven by the chain drive and arranged in a conveyor line. The lifting section includes a power cylinder mounted on a base, a scissor support frame driven and controlled by the power cylinder, and a lifting platform mounted on the scissor support frame.

[0009] The packaging sealing machine of this invention achieves bag lifting, closing, and sealing through a bag opening lifting mechanism, a box-opening mechanism, and a packaging sealing mechanism. In particular, the sealing mechanism, through the coordinated operation of the bag-gripping and twisting assembly and the thread-wrapping and knotting assembly, achieves a slip knot seal. Compared to traditional sealing machines that can only create fixed knots, the slip knot allows for the removal of internal materials without the need for tools to damage the packaging during unpacking. Furthermore, the damaged packaging can be reused, saving inner bags, reducing costs, and saving time and effort in operation. Attached Figure Description

[0010] Figure 1 : Schematic diagram of the overall structure of the packaging sealing machine in Example 1; Figure 2 Schematic diagram of the conveyor line structure; Figure 3 : A schematic diagram of the conveyor line from another angle; Figure 4 Schematic diagram of the bag opening lifting mechanism; Figure 5 Top view of the box-loading mechanism within the overall equipment; Figure 6 Schematic diagram of the box-opening mechanism; Figure 7 Diagram showing the location of the packaging sealing mechanism within the overall equipment; Figure 8 Schematic diagram of packaging sealing mechanism Figure 1 ; Figure 9 Schematic diagram of packaging sealing mechanism Figure 2 ; Figure 10 Schematic diagram of packaging sealing mechanism Figure 3 ; Figure 11 Schematic diagram of the winding and knotting component structure; Figure 12 Schematic diagram of the power supply assembly structure; Figure 13 : Schematic diagram of the wiring platform structure. Detailed Implementation

[0011] The invention will now be described in detail with reference to the accompanying drawings.

[0012] Example 1 A packaging sealing machine includes a frame and a conveyor line 1, a bag opening lifting mechanism 2, a box-opening mechanism 3, and a packaging sealing mechanism 4, all mounted on the frame. The conveyor line 1 is used to transport bags to be sealed to the sealing station. It adopts a conveyor line structure widely used in the industrial field, consisting of a horizontal conveying section 11 and a lifting section 12. The horizontal conveying section 11 includes a conveyor motor, a transmission chain driven by the conveyor motor, and conveyor rollers arranged in a conveyor line driven by the chain drive. The lifting section 12 is positioned at a predetermined location on the conveyor rollers and includes a power cylinder mounted on a base, a scissor-type support frame driven and controlled by the power cylinder, and a lifting platform mounted on the scissor-type support frame. Its functions include: transporting boxes containing bags to the loading station via the horizontal conveying section 11, and then controlling the rise or fall of the boxes containing bags by activating the lifting section 12 as needed.

[0013] The bag-opening lifting mechanism 2 consists of four sets, located at the four corners of the box, used to adsorb the four corners of the bag and lift it upwards. Its structure includes a vertically mounted lifting cylinder 21, a guide slide 22 mounted on the output end of the lifting cylinder 21, a transverse cylinder 23 mounted on the guide slide 22, and a locking corner block 24 mounted on the output end of the transverse cylinder 23. The guide slide 22 is slidably connected to the guide rail on the equipment frame via a slider. The locking corner block 24 is shaped to fit the corner of the box for positioning. A suction cup 25 is installed at a predetermined position on the locking corner block, and the suction cup 25 is used to adsorb and position the bag inside the box. The operation of the bag-opening lifting mechanism 2 is as follows: the transverse cylinder 23 delivers the suction cup 25 to the adsorption position, adsorbs the four corners of the bag, and then the lifting cylinder 21 lifts it upwards until the bag opening is upright.

[0014] The box-opening mechanism 3 is used to open the outer box flap to separate it from the inner packaging bag. It includes two sets of box-opening components 31 and 32, which are arranged in opposite directions but have different structures. The box-opening component 31 includes a box-opening cylinder 311 mounted on the equipment support and a claw 312 located at the end of the box-opening cylinder 311. The claw 312 is composed of a lower flat push plate 312a and an upper clamping plate 312b. The flat push plate 312a is used to push the outer box flap downward and fold it. The front end of the clamping plate 312b has an arc surface to clamp the bag opening. The second box-opening assembly 32 includes a second box-opening cylinder 321 fixed to the equipment frame, and a second box-opening claw 322 connected to the output of the second box-opening cylinder 321. The second box-opening claw 322 is composed of a lower inclined push plate 322a and an upper clamping plate 322b. The inclined push plate 322a is used to push the outer box cover downward to flip and fold it. The front end of the clamping plate 322b has an arc surface to clamp the bag opening. The operation process of the box-opening mechanism 3 is as follows: when the bag opening is upright, the two pairs of box-opening assemblies around the bag opening act simultaneously, flipping and peeling off the outer box cover downward through their respective cylinders and claws, and further pushing the bag opening to close it.

[0015] The packaging sealing mechanism 4 includes a mechanism frame 41 and a bag gripping and twisting assembly 42 and a wire winding and knotting assembly 43 disposed on the mechanism frame 41; The frame 41 consists of a top plate 411, a lifting plate 412, and a bottom plate 413 arranged in parallel from top to bottom. The bottom plate 413 is fixed on the equipment support and is connected to the top plate 411 by a number of guide columns. The lifting plate 412 is slidably mounted on the guide columns between the top plate 411 and the bottom plate 413 by linear bearings.

[0016] The bag-gripping and twisting assembly 42 includes a lifting cylinder 421, a rotary motor 422, a rotary spindle 423, an opening and closing cylinder 424, a gripper seat 425, an opening and closing control rod 426, and an opening and closing gripper 427. The lifting cylinder 421 is fixed above the top plate 411, and its cylinder rod drives the lifting plate 412 downwards. The rotary motor 422 is fixed to one side of the lifting plate 412. The rotary spindle 423 is mounted below the through hole in the middle of the lifting plate 42 via a slip ring, and the rotary motor 422 drives the rotary spindle 423 to rotate via belt drive. The opening and closing cylinder 424 is fixed below the rotary spindle 423, with its cylinder body fixed to the gripper seat 425 below. Its cylinder rod is connected to the opening and closing control rod 426. The upper end of the opening and closing gripper 427 is connected to the gripper seat 425, its middle part is connected to the opening and closing control rod 426 via a joint, and its bottom is an opening and closing claw. When the opening and closing cylinder 424 drives the opening and closing control lever 426 to rise and fall, the opening and closing control lever 426 will simultaneously pull the middle joint of the opening and closing gripper 427 to move, thereby controlling the opening and closing claw at its bottom to complete the corresponding opening and closing action. The control principle and process of the bag gripping and twisting assembly 42 is as follows: the lifting cylinder 421 drives the opening and closing gripper 427 to rise and fall to the bag gripping position, the opening and closing cylinder 424 controls the opening and closing gripper 427 to firmly grip the bag opening, and the rotary motor 422 drives the opening and closing gripper 427 to twist and tighten the bag opening through the rotary spindle 423.

[0017] The winding and knotting assembly 43 includes a winding motor 431, a winding reel 432, a clamping rod 433, a fixing plate 439, a knot connecting plate 434, a knot cylinder 435, a tensioning cylinder 436, a locking hook panel 437, and a pneumatic scissors 438. The winding motor 431 and the winding reel 432 are both mounted on the base plate 413. The winding motor 431 drives the winding reel 432 to rotate via a belt drive. The clamping rod 433 is fixed below the winding reel 432, so that the clamping rod 433 can rotate and wind around the opening and closing gripper 427 under the drive of the winding motor 431. The clamping rod 433 clamps and releases the wire end via a clamping cylinder. The fixing plate 439 is installed on the inner circumference of the winding disc 432. The knot connecting plate 434 is fixed below the fixing plate 439. The tensioning cylinder 436 is installed on one side of the knot connecting plate 434, and its driving end is connected to the pull ring seat 436b via a pull ring 436a. A locking hook panel 437 is fixed on one side of the pull ring seat 436b, and the inner side of the locking hook panel 437 is rotatably installed on the outer side of the knot connecting plate 434. A locking hook cylinder 437a is installed on the upper part of the locking hook panel 437, and a locking hook 437b driven and controlled by the locking hook cylinder 437a is installed below it. The locking hook cylinder 437a drives and controls the hook head of the locking hook 437b to rotate, and make contact or disengage with the hook head hole opened on the locking hook panel 437. This allows it to have a locked position in contact with the hook panel 437 and an unlocked position disengaged from the hook panel 437. The tensioning cylinder 436 drives the hook panel 437 to rotate, thereby rotating the hook panel 437 to a suitable position, thus enabling the engagement or disengagement of the winding. The pneumatic scissors 438 are mounted on the equipment bracket via a lateral cylinder, thereby enabling the cutting action of the winding. The winding and knotting assembly 43 also includes a wire supply assembly 5 configured on the equipment bracket. The wire supply assembly 5 includes a wire supply platform 51, a wire hopper 52, a wire threading frame 53, and a wire routing table 54 configured on the wire supply platform 51. The wire hopper 52 is used to hold the wire spool. The wire end enters the wire routing table 54 from the wire threading frame 53. The bottom of the wire routing table 54 is mounted on the wire supply platform 51 via a slider guide rail. One side of the wire routing table 54 is driven and connected by a wire routing cylinder 55. The wire routing table 54 includes a base 541, a wire clamping cylinder 542 mounted on the side plate of the base 541, and a wire clamping block 543 driven and controlled by the wire clamping cylinder 542 and adapted to the surface of the base 541. The surface of the base 541 is a trapezoidal groove, and the adapting surface of the wire clamping block 543 has a trapezoidal block. The clamping of the wire is achieved by the adaptation of the shapes of the two.

[0018] The principle and operation process of the winding and knotting assembly 43 are as follows: the tension of the winding is adjusted by the wire supply assembly 5, and then the wire clamping rod 433 clamps the wire end. Under the drive of the winding disc 432, the wire clamping rod 433 winds the wire around the twisted and tightened bag opening. When the last second to last turn is reached, the tensioning cylinder 436 controls the locking hook panel 437 to rotate to the limit position. At this time, the winding will be hooked onto the locking hook panel 437. Then, the knotting cylinder 435 is controlled to open the hook head of the locking hook 437b. The wire clamping rod 433 continues to wind the wire. When the last turn of the wire is wound between the locking hook panel 437 and the locking hook 437b, the knotting cylinder 435 controls the hook head of the locking hook 437b to close and lock the wire. Then, the winding reel 432 drives the clamping rod 433 to rotate at a certain angle, and the tensioning cylinder 436 drives the locking hook panel 437 to tilt and swing to one side of the bag opening. At this time, the thread end clamped between the locking hook panel 437 and the locking hook 437b will continue to be in a taut state, while the thread around the outer periphery of the locking hook panel 437 and the locking hook 437b will tighten towards the bag opening. Thus, a slipknot is completed, and the thread can be cut by the pneumatic scissors 438.

[0019] The packaging sealing machine in this embodiment operates as follows: The conveyor line transports the packaging boxes containing the inner bags to the sealing station; The bag opening lifting mechanism first attracts the four corners of the inner bag, and then lifts the bag opening upwards. The box-opening mechanism flips the flaps around the outer box downwards and pushes the inner bag to seal the opening; The packaging sealing mechanism first grips and tightens the bag opening using the bag gripping and twisting assembly, and then uses the thread wrapping and tying assembly to wrap thread around the bag opening and tie it into a slip knot.

[0020] This invention is not limited to the embodiments discussed above. The above description of specific embodiments is intended to describe and illustrate the technical solutions involved in this invention. Obvious modifications, substitutions, or combinations based on the teachings of this invention should also be considered to fall within the protection scope of this invention. The above specific embodiments are used to disclose the best implementation methods of this invention, so that those skilled in the art can apply various embodiments and alternatives of this invention to achieve the objectives of this invention.

Claims

1. A packaging sealing machine, comprising a frame and a conveyor line, a bag opening lifting mechanism, a box-opening mechanism, and a packaging sealing mechanism mounted on the frame; characterized in that, The packaging sealing mechanism includes a frame and a bag gripping and twisting assembly and a wire winding and knotting assembly configured on the frame; The frame of the mechanism consists of a top plate, a lifting plate and a bottom plate arranged in parallel from top to bottom. The bottom plate and the top plate are connected by several guide columns, and the lifting plate is slidably installed on the guide columns between the top plate and the bottom plate. The bag-gripping and twisting assembly includes a lifting cylinder fixed above the top plate and connected to the lifting plate, and a rotary motor fixed on one side of the lifting plate. The rotary motor drives a rotating main shaft located in the middle of the lifting plate. The rotating main shaft is fixed to the gripper seat below through an opening and closing cylinder, and its cylinder rod is connected to the opening and closing control rod. The upper end of the opening and closing gripper is connected to the gripper seat, the middle part is connected to the opening and closing control rod through a joint, and the bottom is an opening and closing claw. The winding and knotting assembly includes a winding motor, a winding reel, a clamping rod, a fixing plate, a knotting connecting plate, a knotting cylinder, a tensioning cylinder, a locking hook panel, and pneumatic scissors. The winding motor and winding reel are both mounted on the base plate, and the winding motor drives the winding reel to rotate via a belt drive. The clamping rod is fixed below the winding reel, and the clamping rod clamps and releases the wire end via a gripper cylinder. The fixing plate is installed on the inner circumference of the winding reel, the knotting connecting plate is fixed below the fixing plate, and the tensioning cylinder is installed on one side of the knotting connecting plate. Its driving end is connected to a pull ring seat via a pull ring. A locking hook panel is fixed to one side of the pull ring seat, and the inner side of the locking hook panel is rotatably mounted on the outer side of the knotting connecting plate. A locking hook cylinder is installed on the upper part of the locking hook panel, and a locking hook driven and controlled by the locking hook cylinder is installed below it. The locking hook cylinder drives and controls the hook head of the locking hook to flip, so as to adapt to the hook head hole opened on the locking hook panel for contact or disengagement. The tensioning cylinder drives the locking hook panel to rotate so that the hook panel rotates to a suitable position, thereby realizing the attachment or release of the winding. The pneumatic scissors are configured on the equipment bracket by a transverse cylinder.

2. The packaging sealing machine as described in claim 1, characterized in that, The winding and knotting assembly also includes a wire supply assembly mounted on the equipment bracket. The wire supply assembly includes a wire supply platform, a wire hopper, a wire threading frame, and a wire routing table mounted on the wire supply platform. The bottom of the wire routing table is slidably mounted on the wire supply platform, and one side of the wire routing table is driven and connected by a wire routing cylinder. The wire routing table includes a base, a wire clamping cylinder mounted on the side plate of the base, and a wire clamping block driven and controlled by the wire clamping cylinder and adapted to the surface of the base. The surface of the base is a trapezoidal groove, and the adapting surface of the wire clamping block has a trapezoidal block. The clamping of the wire is achieved by the adaptation of the shapes of the two.

3. The packaging sealing machine as described in claim 1, characterized in that, The box-opening mechanism is used to open the outer box flap to separate it from the inner packaging bag. It includes two sets of box-opening components 1 and 2, which are arranged in opposite directions but have different structures. Box-opening component 1 includes a box-opening cylinder 1 mounted on the equipment support and a claw 1 set at the end of the box-opening cylinder 1. The claw 1 is composed of a lower flat push plate and an upper clamping plate. The flat push plate is used to push the outer box flap downward and fold it over. The front end of the clamping plate 1 has an arc surface to clamp the bag opening. Box-opening component 2 includes a box-opening cylinder 2 fixed on the equipment frame and a claw 2 connected to the output of the box-opening cylinder 2. The claw 2 is composed of a lower inclined push plate and an upper clamping plate 2. The inclined push plate is used to push the outer box flap downward and fold it over. The front end of the clamping plate 2 has an arc surface to clamp the bag opening.

4. A packaging sealing machine as described in claim 1, characterized in that, The bag lifting mechanism consists of four sets, located at the four corners of the box, used to absorb the four corners of the bag and lift it upwards. Its structure includes a vertically installed lifting cylinder, a guide slide mounted on the output end of the lifting cylinder, a transverse cylinder mounted on the guide slide, and a snap-fit ​​corner block mounted on the output end of the transverse cylinder. The guide slide is slidably connected to the guide rail on the equipment frame via a slider. The shape of the snap-fit ​​corner block is adapted to snap-fit ​​corners of the box for positioning. A suction cup is installed at a predetermined position on the snap-fit ​​corner block.

5. A packaging sealing machine as described in claim 1, characterized in that, The conveyor line consists of a horizontal conveying section and a lifting section. The horizontal conveying section includes a conveyor motor, a transmission chain driven by the conveyor motor, and conveyor rollers driven by the chain drive and arranged in a conveyor line. The lifting section includes a power cylinder mounted on a base, a scissor support frame driven and controlled by the power cylinder, and a lifting platform mounted on the scissor support frame.

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