A strapping machine and a method of packing a strapping machine

Abstract

This invention belongs to the technical field of packaging strapping machines, specifically referring to a strapping machine and its strapping method. The strapping machine includes a frame, a strap storage mechanism, a looping mechanism, a tightening mechanism, a welding mechanism, and a strap cutting mechanism. The tightening mechanism includes a moving component, a detection roller, a detection bracket, a damping component, and a triggering device. During the strap retraction process, the moving component first retracts the strap, and then the tightened strap drives the detection bracket. The strap reel of the strap storage mechanism switches from a locked state to a rotating state, realizing a retraction and re-storage of strap. When the detection bracket moves, the triggering device indirectly or directly controls the strap reel to release the strap. This design allows the tension of the strap during the strapping process to be controlled by the damping component, simplifying the overall strap retraction structure. The strap tightening force can be easily adjusted as needed, improving the versatility and ease of use of the strapping machine.

Description

Technical Field

[0001] This invention belongs to the technical field of packaging strapping machines, specifically referring to a strapping machine and a strapping method. Background Technology

[0002] CN202011120420.5 discloses a strapping machine, which includes a strapping storage mechanism for storing straps and supplying straps to a looping mechanism when needed; a looping mechanism for advancing the straps along a circular track and forming loops connected end to end; a tightening mechanism for tightening the straps in the reverse direction and securing the loops formed by the straps to the product to be strapped; a welding mechanism for welding the beginning and end of the loops together; and a strap cutting mechanism for cutting off the remaining connected straps outside the loops.

[0003] Existing technologies include a tape retraction motor and tape retraction rollers. This solution uses the friction of the tape retraction rollers clamping the tape to retract it. In actual operation, the torque of the tape retraction motor needs to be monitored to determine if the tape is properly secured. However, this approach has several drawbacks: changes in the packaged items will alter the tape retraction, requiring adjustments to the tape tightening mechanism to prevent over-tightening or under-tightening. Furthermore, changes in the tape material necessitate adjustments to the tightening mechanism to prevent slippage or damage. Adapting the tightening mechanism to the strapping is challenging; over-tightening will leave marks, while insufficient tightening will result in slippage. These issues are particularly pronounced with thin strapping. Additionally, the tape experiences friction during retraction within the looping mechanism, which can affect the tape's tightness. Summary of the Invention

[0004] The purpose of this invention is to provide a strapping machine and a strapping method that can pack different products without easily damaging the straps.

[0005] The objective of this invention is achieved as follows:

[0006] A strapping machine, comprising

[0007] Frame,

[0008] A belt storage mechanism, which stores the belt and supplies it to the looping mechanism when needed;

[0009] A loop mechanism is used to advance the belt along a loop-shaped track and form a loop that connects the ends of the belt.

[0010] A tightening mechanism is used to tighten the strap in the reverse direction and secure the loop formed by the strap to the product to be bound;

[0011] A fusion welding mechanism used to weld the beginning and end of a ring joint into one piece;

[0012] A tape-cutting mechanism used to cut the tape attached to a loop;

[0013] The tape storage mechanism includes:

[0014] A reel assembly for mounting a reel; the reel assembly is provided with a locking device; the locking device controls the reel to be in a locked state or a rotatable state; when the reel is in the locked state, the reel cannot rotate; when the reel is in the rotatable state, the reel supplies tape.

[0015] Several fixed rollers are installed on one side of the belt storage mechanism; the fixed rollers are used for winding the belt.

[0016] Several movable rollers are installed on the other side of the belt storage mechanism; the movable rollers are used for belt bending; the fixed rollers and movable rollers cooperate to form a belt storage area;

[0017] The tightening mechanism includes:

[0018] A movable component is movably mounted on a frame; the movable component is equipped with the movable roller; the movable component can move between a first position and a second position; when the movable component moves to the first position, the movable roller moves away from the fixed roller and stores the belt; when the movable component moves to the second position, the movable roller moves closer to the fixed roller and feeds the belt.

[0019] A detection roller for winding the tape; the detection roller is mounted on a detection bracket;

[0020] The testing bracket is rotatably or movablely mounted on the frame; the testing bracket is equipped with a damping component, which provides a certain resistance to the testing bracket;

[0021] A triggering device is used to acquire the movement of the detection bracket; when the detection bracket moves, the triggering device indirectly or directly controls the locking device, which allows the pulley to rotate.

[0022] Preferably, the damping component is an adjustable electromagnetic damper, and a gear is mounted on the output shaft of the electromagnetic damper;

[0023] The detection bracket is a swing arm, with the middle part of the swing arm rotatably mounted on the frame. The lower end of the swing arm is equipped with the detection roller, and the upper end of the swing arm is provided with a toothed surface; the toothed surface meshes with the gear.

[0024] A sensing element is provided on one side of the swing arm; the triggering device is a sensor installed on the frame, which detects the movement of the sensing element.

[0025] Preferably, the plurality of fixed rollers and the plurality of movable rollers are arranged vertically; the fixed rollers and the movable rollers are staggered in the horizontal direction; the detection roller is arranged in the same column as the fixed rollers; or, the plurality of fixed rollers and the plurality of movable rollers are arranged horizontally; the fixed rollers and the movable rollers are staggered in the vertical direction; the detection roller is arranged in the same row as the fixed rollers.

[0026] Preferably, the frame is equipped with a slide rail, a synchronous belt assembly, and a drive motor; the conveying direction of the synchronous belt assembly is parallel to the slide rail.

[0027] The movable component is mounted on the slide rail, and the slide rail guides the movable component to move between a first position and a second position.

[0028] One side of the moving component is fixedly connected to the synchronous belt assembly; the drive motor drives the moving component through the synchronous belt assembly.

[0029] Preferably, the moving component includes a first moving bracket and a second moving bracket; both the first moving bracket and the second moving bracket are mounted on the slide rail; the first moving bracket and the second moving bracket are of a separate structure.

[0030] The first movable support is equipped with the movable roller on the front side and the rope is equipped with the rear side of the first movable support. The other end of the rope passes through the steering roller and is suspended by a counterweight.

[0031] The second movable support is fixedly connected to the timing belt assembly;

[0032] The first movable support is located on one side of the second movable support in the direction of the belt storage.

[0033] Preferably, the first movable support is provided with a photoelectric sensing sheet, and the frame is provided with a photoelectric sensor; when the first movable support is in the first position, the photoelectric sensing sheet triggers the photoelectric sensor.

[0034] Preferably, a shock-absorbing pad is provided between the first movable support and the second movable support, and the shock-absorbing pad is fixed on the first movable support or the second movable support.

[0035] The locking device on the disc assembly is an electromagnetic brake.

[0036] A packing method using a strapping machine, the method being based on the strapping machine, the specific steps of which include:

[0037] Step (1): In the initial state, the tape storage mechanism stores tape normally, and the tape reel is in a locked state;

[0038] Step (2): Perform the belt feeding action; the belt feeding roller group clamps the belt and feeds the belt forward. The belt is taut and transmits force to the moving roller. The moving roller and the moving component move from the first position to the second position. After the moving roller moves a certain distance, the belt feeding ends.

[0039] Step (3), the front end of the belt is pressed tight;

[0040] Step (4), perform the tape retraction action: the tape feeding roller group loosens the tape, and the moving component moves to the first position; during the movement, the moving roller retracts the tape into the tape storage mechanism, and the tape gradually tightens; when the tape tension gradually increases to the set value, the detection roller is driven by the tape, and the detection roller drives the detection bracket; the triggering device on the frame detects the action of the detection bracket; the triggering device indirectly or directly controls the locking device, so that the tape reel is in a rotatable state;

[0041] Step (5), perform the belt storage action: the belt feeding roller group clamps the belt, the moving component continues to move to the first position, the belt reel rotates and supplies belt into the belt storage mechanism until the belt storage is completed;

[0042] Step (6): The tape cutting mechanism completes the tape cutting, and the welding mechanism completes the tape heat treatment; packaging is completed.

[0043] Preferably, the moving component includes a first moving bracket and a second moving bracket; both the first moving bracket and the second moving bracket are mounted on a slide rail; the moving roller is mounted on the front side of the first moving bracket, and a rope and a counterweight are mounted on the rear side of the first moving bracket;

[0044] The second movable support is fixedly connected to the timing belt assembly, and the drive motor drives the timing belt assembly and the second movable support;

[0045] In step (1), in the initial state, the first moving bracket and the second moving bracket are in a separated state, the first moving bracket is located in the first position under the action of the counterweight, and the second moving bracket is located in the second position.

[0046] In step (2), the movable roller and the first movable support overcome the weight of the counterweight, and both the movable roller and the first movable support move a certain distance to the second position, and the belt feeding ends;

[0047] In step (4), the first moving bracket moves to the first position under the action of the counterweight; the second moving bracket moves to the first position under the action of the synchronous belt assembly and the drive motor; when the first moving bracket moves to the first position to a certain extent, the belt is in a taut state, and the belt fed in the feeding step has been returned to the belt storage mechanism.

[0048] In step (5), the second moving bracket continues to move to the first position and pushes the first moving bracket to move to the first position; the belt reel rotates to store the belt until the first moving bracket reaches the first position; when the first moving bracket reaches the first position, the first moving bracket triggers a photoelectric signal.

[0049] The drive motor drives the synchronous belt assembly to rotate in the opposite direction according to the photoelectric signal, the second moving bracket moves to the second position and pushes the detection bracket to reset; the electromagnetic brake relocks the belt reel.

[0050] When the swing arm completes its reset, the sensor on the upper part of the frame is triggered, and the tape is fully stored.

[0051] Preferably, in step (5), after the belt feeding roller group clamps the belt, step (6) is executed first and then step (5) is executed again, or steps (5) and (6) are executed simultaneously.

[0052] The outstanding and beneficial technical effects of this invention compared to the prior art are:

[0053] 1. The present invention has a detection bracket mounted on its frame, and the detection bracket is equipped with a damping component; the damping component provides a certain resistance to the detection bracket; a detection roller is installed at the lower end of the detection bracket; the present invention uses a moving component for tape unwinding, and when the detection bracket moves, a triggering device indirectly or directly controls the tape reel to release the tape; this design allows the tension of the tape during the packaging process to be controlled by the damping component, simplifying the overall tape unwinding structure; the tape tightening force can be easily adjusted as needed, improving the versatility and ease of use of the tape bundling machine; there is no need to detect the torque of the tape unwinding motor, and there is no need to consider the friction of the tape unwinding within the loop mechanism during the tightening process; the stability and accuracy of the detection are improved, and the cost is further reduced.

[0054] 2. The moving component of the present invention adopts a split structure, which includes a first moving bracket and a second moving bracket; the two parts can be separated, so that the belt feeding roller group and the timing belt assembly will not interfere with each other, ensuring the stability of belt feeding and preventing the belt from being scratched; the second moving bracket further ensures the accurate reset of the detection bracket. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the overall structure of the belt fastening machine.

[0056] Figure 2 This is one of the schematic diagrams of the belt storage mechanism and the tightening mechanism.

[0057] Figure 3 This is the second schematic diagram of the belt storage mechanism and the tightening mechanism.

[0058] Figure 4This is an exploded view of the belt storage mechanism and the tightening mechanism.

[0059] Figure 5 This is one of the schematic diagrams of the moving component of the tightening mechanism.

[0060] Figure 6 This is the second schematic diagram of the moving component of the tightening mechanism.

[0061] Figure 7 This is one of the schematic diagrams showing the coordination of the detection bracket, detection roller, and triggering device.

[0062] Figure 8 This is the second schematic diagram showing the coordination of the detection bracket, detection roller, and triggering device.

[0063] Figure 9 This is a schematic diagram of the entire belt tensioning machine when the moving component is in the second position.

[0064] Figure 10 This is one of the schematic diagrams of the belt storage mechanism when the moving component is in the second position.

[0065] Figure 11 This is the second schematic diagram of the belt storage mechanism when the moving component is in the second position.

[0066] Figure 12 This is the third schematic diagram of the belt storage mechanism when the moving component is in the second position.

[0067] Reference numerals: 1. Frame; 10. Belt storage mechanism; 20. Ringing mechanism; 30. Tightening mechanism; 40. Welding mechanism; 50. Belt cutting mechanism; 101. Belt reel assembly; 102. Fixed roller; 103. Moving assembly; 104. Detection roller; 105. Detection bracket; 106. Triggering device; 107. Damping component; 1011. Belt reel; 1012. Locking device; 1031. Moving roller; 1 033. First movable support; 1034. Second movable support; 1035. Rope; 1036. Counterweight; 1037. Steering roller; 1038. Photoelectric sensor; 1039. Connecting part; 1040. Shock-absorbing pad; 1051. Sensing part; 1052. Rotation point; 1053. Abutting part; 1054. Toothed surface; 1055. Gear position part; 1071. Gear; 201. Belt feed roller assembly. Detailed Implementation

[0068] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figures 1-12 :

[0069] like Figures 1-4 As shown, a strapping machine includes...

[0070] Frame 1 serves as a carrier for the remaining mechanisms and components; the frame serves as the main structure of the strapping machine.

[0071] The belt storage mechanism 10 is used to store the belt and supply the belt to the looping mechanism when needed;

[0072] The looping mechanism 20 is used to advance the belt along a circular track and form a loop with the ends connected. The looping mechanism 20 is consistent with the prior art and will not be elaborated on in this application. In this application, the looping mechanism is installed on the left side of the frame and the belt storage mechanism 10 is installed on the right side of the frame, and the overall height is reduced.

[0073] The tightening mechanism 30 is used to tighten the strap in the reverse direction and secure the loop formed by the strap to the product to be bound.

[0074] The fusion welding mechanism 40 is used to weld the first and last ends of the ring joint into one piece; the fusion welding mechanism 40 is consistent with the prior art, and will not be elaborated on in this application.

[0075] The tape-cutting mechanism 50 is used to cut the tape connected to the loop; the tape-cutting mechanism 50 is consistent with the prior art and will not be elaborated on in this application.

[0076] The belt storage mechanism 10 includes:

[0077] A reel assembly 101 is used to mount a reel 1011; a locking device 1012 is provided on the reel assembly 101; the locking device 1012 is used to control the reel 1011 to be in a locked state or a rotatable state; when the reel is in the locked state, the reel cannot rotate; when the reel is in the rotatable state, the reel supplies tape; in this embodiment, the locking device 1012 can rotate when energized and locks the reel when de-energized;

[0078] Several fixed rollers 102 are installed on one side of the belt storage mechanism; the fixed rollers are used for winding the belt.

[0079] Several movable rollers 1031 are installed on the other side of the belt storage mechanism; the movable rollers are used for belt bending; the fixed rollers and movable rollers cooperate to form the belt storage area 3;

[0080] The tightening mechanism 30 includes:

[0081] A movable component 103 is movably mounted on a frame; the movable component is equipped with the movable roller 1031; the movable component 103 can move between a first position and a second position; when the movable component 103 moves to the first position, the movable roller 1031 moves away from the fixed roller 102 and stores the belt; when the movable component 103 moves to the second position, the movable roller 1031 moves closer to the fixed roller 102 and feeds the belt.

[0082] The detection roller 104 is used for winding the belt; the detection roller is mounted on the detection bracket.

[0083] The detection bracket 105 is rotatably or movablely mounted on the frame; the detection bracket is equipped with a damping component 107, which provides a certain resistance to the detection bracket;

[0084] Triggering device 106 is used to acquire the movement of the detection bracket; when the detection bracket moves, the triggering device indirectly or directly controls the locking device 1012, and the locking device allows the pulley to rotate.

[0085] It should be noted that the moving component 103 and the moving roller 1031 operate synchronously. Therefore, in the early stage of the moving component 103 resetting to the first position, the belt storage process of the belt tensioning machine obtains the belt from the looping mechanism, which is equivalent to the belt unwinding process. After the belt unwinding is completed, the moving component 103 continues to reset to the first position, during which the belt is in a taut state. When the belt drives the detection roller 104, the locking device 1012 allows the belt reel to rotate, and the belt storage process of the belt tensioning machine obtains the belt from the belt reel. For ease of explanation, this application includes the moving component 103, the detection roller 104, the detection bracket 105, and the triggering device 106 in the tightening mechanism 30. Those skilled in the art should understand that this application does not exclude the inclusion of the tightening mechanism 30, in whole or in part, within the belt storage mechanism 10. Therefore, the technical solution is described as follows: the belt storage mechanism 10 includes the tightening mechanism 30, which is also within the concept and protection scope of this application.

[0086] Preferably, the damping component 107 is an adjustable resistance electromagnetic damper, and a gear 1071 is mounted on the output shaft of the electromagnetic damper. When the items being packaged or the strap changes, the tension of the strap needs to be adjusted during the unpacking process to achieve a better packaging effect. In this application, the resistance can be adjusted and the tension of the strap can be changed by simply setting the operating current or operating voltage of the electromagnetic damper in the program. Correspondingly, if the damping component 107 is a spring, its ability to adjust resistance is relatively poor.

[0087] like Figure 7 and Figure 8As shown, the detection bracket 105 is a swing arm, with its middle part rotatably mounted on the frame. The lower end of the swing arm is equipped with the detection roller 104, and the upper end of the swing arm is provided with a toothed surface 1054. The toothed surface 1054 meshes with the gear 1071. The rotation point 1052 in the middle of the swing arm is located at the upper part of the swing arm. The swing arm forms a simple lever structure, which allows the force at the lower part of the swing arm to be appropriately amplified and transmitted to the upper toothed surface, making the detection more sensitive. The use of the arc-shaped toothed surface 1054 and the gear 1071 to cooperate achieves the stability of the damping component 107, preventing sudden changes in resistance. A sensing part 1051 is provided on one side of the swing arm. The triggering device 106 is a sensor installed on the frame, which detects the movement of the sensing part 1051. A portion of the sensing unit 1051 extends between the two sensors. When the sensing unit 1051 retracts from between the two sensors, the photoelectric signal between the two sensors is activated. The controller of the belt winding machine receives the corresponding photoelectric signal and controls the locking device 1012, which allows the belt reel to rotate. A stop part 1053 is provided on the swing arm, and a stop part 1055 is provided on the frame. When the angle of the swing arm reaches a certain level, the stop part 1053 presses against the stop part 1055, preventing the swing arm from swinging further and achieving a safety limit effect.

[0088] Preferably, the plurality of fixed rollers 102 and the plurality of movable rollers 1031 are all arranged vertically; the fixed rollers 102 and the movable rollers 1031 are staggered in the horizontal direction; the detection roller 104 is arranged in the same column as the fixed rollers 102. In the scheme of this application, the fixed rollers and the movable rollers are arranged side by side. The detection roller is located in the middle of the column of fixed rollers. Figure 1 As shown, after the tape comes out of the reel, it is wound sequentially from right to left, first around a roller on the right, then around a roller on the left, and then from top to bottom through the feed roller group 201. As a variation, the fixed rollers 102 and the movable rollers 1031 can be arranged horizontally; the fixed rollers 102 and the movable rollers 1031 are staggered in the vertical direction; the movable rollers 1031 are located below the fixed rollers 102; the detection rollers 104 are arranged in the same row as the fixed rollers 102; in this case, automatic tape storage can be achieved by relying on the gravity of the movable component 103 and the detection rollers 104.

[0089] Preferably, the frame 1 is equipped with a slide rail 302, a synchronous belt assembly 301, and a drive motor 303; the conveying direction of the synchronous belt assembly 301 is parallel to the slide rail 302.

[0090] The movable component 103 is mounted on the slide rail 302, and the slide rail guides the movable component to move between a first position and a second position; for example Figure 1 As shown, the position of the moving component is the first position, which is also the limit position to which the moving component can move to the left during actual operation; the limit position to which the moving component can move to the right during actual operation is the second position.

[0091] One side of the moving component 103 is fixedly connected to the synchronous belt component 301; the drive motor 303 drives the moving component through the synchronous belt component 301, and controls the movement of the moving component through the drive motor to realize the switching of the moving component between the first position and the second position.

[0092] like Figure 5 As shown, this application also provides a modified structure: the moving component 103 is divided from a single integral component into two independent components; the moving component 103 includes a first moving bracket 1033 and a second moving bracket 1034; the first moving bracket 1033 and the second moving bracket 1034 are separate structures; both the first moving bracket 1033 and the second moving bracket 1034 are mounted on the slide rail 302.

[0093] The first movable support 1033 is equipped with the movable roller 1031 on the front side and the first movable support 1033 is equipped with the rope 1035 on the rear side. The other end of the rope passes through the steering roller 1037 and is suspended by a counterweight 1036.

[0094] The second movable support 1034 is provided with a connecting part 1039, which is fixedly connected to the synchronous belt assembly 301; the drive motor drives the synchronous belt assembly and the second movable support.

[0095] refer to Figures 9-12 The second movable support 1034 is located between the first movable support 1033 and the fixed roller 102. After the belt is stored, the drive motor moves the second movable support 1034 to the second position, while the first movable support remains in the first position under the action of the counterweight. During the belt feeding stage, the belt feeding roller assembly 201 of the looping mechanism clamps the belt 2 and feeds it forward. The belt overcomes the weight of the counterweight and drives the first movable support. This application does not choose a very heavy counterweight; the weight of the counterweight is chosen so that the belt can relatively easily drive the first movable support. For example, the weight of the counterweight is chosen to be 1 kg. In this solution, separating the first and second movable supports can further avoid the occurrence of mutual interference between the belt feeding roller assembly 201 and the synchronous belt assembly 301 during the belt feeding process.

[0096] Preferably, a photoelectric sensor 1038 is provided on the first movable support 1033, and a photoelectric sensor is provided on the frame; when the first movable support 1033 is in the first position, the photoelectric sensor 1038 triggers the photoelectric sensor. The principle of the photoelectric sensor 1038 and the photoelectric sensor is the same as that of the triggering device 106, and is used by the controller to detect whether the reset of the first movable support is complete.

[0097] Preferably, a shock-absorbing pad 1040 is provided between the first movable support 1033 and the second movable support 1034, and the shock-absorbing pad is fixed on the first movable support or the second movable support; to avoid noise caused by the impact between the first movable support 1033 and the second movable support 1034.

[0098] The locking device 1012 on the disc assembly is an electromagnetic brake, which can switch functions by energizing or de-energizing.

[0099] A packing method using a strapping machine, the method being based on the strapping machine, the specific steps of which include:

[0100] Step (1): In the initial state, the tape storage mechanism 10 stores tape normally, and the tape reel 1011 installed on the tape reel assembly 101 is in a locked state.

[0101] Step (2), perform the belt feeding action; the belt feeding roller assembly 201 clamps the belt 2 and feeds the belt forward. With the belt taut, force is transmitted to the moving roller 1031, and the moving roller and moving assembly 103 move from the first position to the second position; combined with... Figure 1 In the state shown, the moving component 103 moves from left to right; after the moving roller 1031 moves a certain distance, the belt feeding ends; when the belt feeding ends, the position of the moving roller 1031 is generally the middle position of the entire moving length.

[0102] Step (3), the front end of the belt is pressed; the pressing structure is existing technology and is achieved by the configured top knife mechanism 60; the top knife mechanism 60 is existing technology, and the top knife of the top knife mechanism is provided with a belt-passing groove in the middle, and the belt passes through the belt-passing groove and then loops; the top of the top knife is used to press the belt foot;

[0103] Step (4), perform the tape retraction action: the tape feed roller group 201 loosens the tape, and the moving component 103 moves to the first position; the driven wheel of the tape feed roller group disengages from the tape, and the tape is pulled away by the first moving bracket; during the movement, the moving roller retracts the tape into the tape storage mechanism, and the tape gradually tightens; since the looping mechanism has already used part of the tape, and the tape reel is in a locked state, the length of the tape prevents the moving component from retracting to the first position; when the tape tension gradually increases to the set value, the detection roller 104 is driven by the tape, and the detection roller drives the detection bracket 105; the triggering device 106 on the frame detects the action of the detection bracket, and the triggering device indirectly or directly controls the locking device 1012, so that the tape reel can rotate;

[0104] Step (5), perform the belt storage action: the belt feeding roller group 201 and / or the rear cutter 70 clamp the belt, the moving component 103 continues to move to the first position, the belt reel rotates and supplies belt into the belt storage mechanism until the belt storage is completed; the rear cutter 70 is the prior art, used to press the belt to prevent the loop formed in front from loosening, the position of the rear cutter is the lower side of the position after the front end of the belt has circled once, the rear cutter pushes upward and presses the two layers of belt tightly;

[0105] Step (6): The tape cutting mechanism 50 completes the tape cutting, and the welding mechanism 40 completes the tape heat treatment; packaging is completed; before tape cutting, the back knife 70 needs to hold the tape in place during tape cutting and heat treatment.

[0106] In step (1), in the initial state, as follows: Figure 6 As shown, the first movable support 1033 and the second movable support 1034 are in a separated state. The first movable support 1033 is located in the first position or slightly displaced from the first position under the action of the counterweight 1036, and the second movable support 1034 is located in the second position. The second movable support is located on the right side and abuts against the swing arm.

[0107] In step (2), the movable roller 1031 and the first movable support 1033 overcome the gravity of the counterweight, and both the movable roller and the first movable support move a certain distance to the second position, and the belt feeding ends.

[0108] In step (4), the first moving bracket 1033 moves to the first position under the action of the counterweight; the second moving bracket 1034 moves to the first position under the action of the synchronous belt assembly and the drive motor; if the speed of the drive motor is fast, the second moving bracket can catch up with the first moving bracket during the movement of the first moving bracket; when the first moving bracket moves to a certain extent to the first position, the belt is in a taut state, and the belt fed in the feeding step has been returned to the belt storage mechanism 10; the tension of the belt acts on the detection roller, and when the force of the belt reaches the force set by the electromagnetic damper, the detection roller drives the swing arm to move, and the sensor at the upper end of the swing arm is triggered; in the actual design scheme, the weight of the counterweight is not enough to drive the swing arm, and the second moving bracket is needed to push it.

[0109] In step (5), the second moving bracket 1034 continues to move to the first position and pushes the first moving bracket 1033 to move to the first position; the reel rotates to store the tape until the first moving bracket reaches the first position; when the first moving bracket reaches the first position, the first moving bracket triggers a photoelectric signal; the electromagnetic brake relocks the reel; the drive motor 303 drives the synchronous belt assembly to rotate in the opposite direction according to the photoelectric signal, the second moving bracket moves to the second position and pushes the detection bracket 105 to reset; when the detection bracket is reset, the sensor on the frame is triggered, and the tape is completely stored; the work is completed.

[0110] As a variation of the method, in step (5), after the tape feeding roller group 201 clamps the tape, step (6) is executed first, and then step (5) is executed again. Specifically, after the tape feeding roller group 201 clamps the tape, the controller controls the top knife of the top knife mechanism 60 to move upward and hold the tape, the cutter of the tape cutting mechanism moves upward and cuts the tape, and the hot knife of the welding mechanism realizes the welding of the tape. After the top knife, cutter, and hot knife are completed, they are reset. Then the detection bracket 105 is reset. It should be noted that in this method, the tape reel is locked first and then the swing arm is reset. Therefore, during the reset of the swing arm, the first moving bracket will move slightly to the right. This is a normal phenomenon and is also within the scope of protection of this application. The specific structure of the top knife, cutter, and hot knife belongs to the prior art.

[0111] As a variation of the method, in step (5), after the belt feeding roller group 201 clamps the belt, the remaining actions of steps (6) and (5) can be performed simultaneously.

[0112] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A tape-gluing machine, comprising: Frame (1); A belt storage mechanism (10) is used to store belts and supply belts to the looping mechanism when needed; A loop mechanism (20) is used to advance the belt along a loop-shaped track and form a loop; A tightening mechanism (30) is used to tighten the strap in the reverse direction and secure the loop formed by the strap to the product to be bound; A welding mechanism (40) is used to weld the beginning and end of the ring joint together. A tape-cutting mechanism (50) is used to cut the tape connected to the loop; Its features are, The belt storage mechanism (10) includes: A reel assembly (101) is provided for mounting a reel (1011); a locking device (1012) is provided on the reel assembly (101); the locking device (1012) is used to control the reel (1011) to be in a locked state or a rotatable state; when the reel (1011) is in the locked state, the reel (1011) cannot rotate; when the reel (1011) is in the rotatable state, the reel supplies belt. Several fixed rollers (102) are installed on one side of the belt storage mechanism; the fixed rollers are used for winding the belt. Several movable rollers (1031) are installed on the other side of the belt storage mechanism; the movable rollers are used for belt bending; the fixed rollers and movable rollers cooperate to form a belt storage area (3). The tightening mechanism (30) includes: A movable component (103) is movably mounted on a frame; the movable component is equipped with the movable roller (1031); the movable component (103) can move between a first position and a second position; when the movable component (103) moves to the first position, the movable roller (1031) moves away from the fixed roller (102) and stores the belt; when the movable component (103) moves to the second position, the movable roller (1031) approaches the fixed roller (102) and feeds the belt. A detection roller (104) is used for winding the belt; the detection roller is mounted on a detection bracket; The detection bracket (105) is rotatably or movablely mounted on the frame; the detection bracket is equipped with a damping component (107), which provides the detection bracket with a certain resistance; A triggering device (106) is used to acquire the movement of the detection bracket; when the detection bracket moves, the triggering device indirectly or directly controls the locking device (1012), which allows the pulley to rotate; The damping component (107) is an adjustable resistance electromagnetic damper, and a gear (1071) is installed on the output shaft of the electromagnetic damper. The detection bracket (105) is a swing arm, with the middle part of the swing arm rotatably mounted on the frame. The lower end of the swing arm is equipped with the detection roller (104), and the upper end of the swing arm is provided with a toothed surface (1054). The toothed surface (1054) meshes with the gear (1071). A sensing element (1051) is provided on one side of the swing arm; the triggering device (106) is a sensor installed on the frame, and the sensor detects the movement of the sensing element (1051).

2. The strapping machine according to claim 1, characterized in that, The plurality of fixed rollers (102) and the plurality of movable rollers (1031) are arranged vertically; the fixed rollers (102) and the movable rollers (1031) are staggered in the horizontal direction; the detection roller (104) is arranged in the same column as the fixed rollers (102); Alternatively, the plurality of fixed rollers (102) and the plurality of movable rollers (1031) are arranged horizontally; the fixed rollers (102) and the movable rollers (1031) are staggered in the vertical direction; the detection roller (104) is arranged in the same row as the fixed rollers (102).

3. A strapping machine according to claim 1, characterized in that, The frame (1) is equipped with a slide rail (302), a synchronous belt assembly (301), and a drive motor (303); the conveying direction of the synchronous belt assembly (301) is parallel to that of the slide rail (302); The sliding rail (302) is on which the moving component (103) is mounted, and the sliding rail guides the moving component to move between a first position and a second position; One side of the moving component (103) is fixedly connected to the synchronous belt assembly (301); the drive motor (303) drives the moving component through the synchronous belt assembly (301).

4. A strapping machine according to claim 3, characterized in that, The movable component (103) includes a first movable bracket (1033) and a second movable bracket (1034); both the first movable bracket (1033) and the second movable bracket (1034) are mounted on the slide rail (302); the first movable bracket (1033) and the second movable bracket (1034) are of a split structure; The first movable support (1033) is equipped with the movable roller (1031) on the front side and a rope (1035) is installed on the rear side of the first movable support (1033). The other end of the rope passes through the steering roller (1037) and is suspended by a counterweight (1036). The second movable support (1034) is fixedly connected to the timing belt assembly (301); The second movable support (1034) is located between the first movable support (1033) and the fixed roller (102).

5. A strapping machine according to claim 4, characterized in that, The first movable support (1033) is provided with a photoelectric sensor (1038), and the frame is provided with a photoelectric sensor; when the first movable support (1033) is in the first position, the photoelectric sensor (1038) triggers the photoelectric sensor.

6. A strapping machine according to claim 4, characterized in that, A shock-absorbing pad (1040) is provided between the first movable support (1033) and the second movable support (1034), and the shock-absorbing pad is fixed on the first movable support or the second movable support. The locking device (1012) on the disc assembly is an electromagnetic brake.

7. A packaging method using a strapping machine, characterized in that, This method, based on the strapping machine according to any one of claims 1-6, specifically includes the following steps: Step (1): In the initial state, the tape storage mechanism (10) stores tape normally, and the tape reel (1011) installed on the tape reel assembly (101) is in a locked state. Step (2): Execute the belt feeding action; the belt feeding roller group (201) of the looping mechanism (20) clamps the belt (2) and feeds the belt forward. The belt is taut and transmits force to the moving roller (1031). The moving roller and the moving component (103) move from the first position to the second position. After the moving roller (1031) moves a certain distance, the belt forms a loop; the belt feeding ends. Step (3), the front end of the belt is pressed tight; Step (4), perform the tape retraction action: the tape feed roller group (201) loosens the tape, and the moving component (103) moves to the first position; during the movement, the moving roller retracts the tape into the storage mechanism, and the tape gradually tightens; when the tension of the tape gradually increases to the set value, the detection roller (104) is driven by the tape; the detection roller drives the detection bracket (105), and the triggering device (106) on the bracket detects the action of the detection bracket; the triggering device indirectly or directly controls the locking device (1012) of the tape reel, and the locking device (1012) controls the tape reel (1011) to be in a rotatable state; Step (5), perform the belt storage action: the belt feeding roller group (201) clamps the belt, the moving component (103) continues to move to the first position, the belt reel rotates and supplies belt into the belt storage mechanism until the belt storage is completed; Step (6): The tape cutting mechanism (50) completes the tape cutting, and the welding mechanism (40) completes the tape heat treatment; packaging is completed.

8. A packaging method for a strapping machine according to claim 7, characterized in that, In step (5), after the belt feeding roller group (201) clamps the belt, step (6) is executed first and then step (5) is executed again, or steps (5) and (6) are executed simultaneously.

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