An automatic packing machine
By integrating a locking machine, a strapping buckle releaser, a strap feeder, and a strap connector into an automatic strapping machine, the problem of automating the operation of metal strapping has been solved, realizing a fully automated metal strapping process and improving efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING LONGYU PRECISION COPPER TUBE CO LTD
- Filing Date
- 2024-03-28
- Publication Date
- 2026-07-21
AI Technical Summary
Existing automatic strapping machines cannot automate the operation of metal strapping, resulting in high manual labor intensity and low efficiency.
Design an automatic strapping machine that integrates a locking machine, a strapping buckle releaser, a strap feeder, and a strap receiver to achieve automatic strapping threading, tightening, snapping, and cutting. Improve the accuracy and efficiency of the strapping by using guide clamps and guide seats.
It achieves fully automated operation of metal strapping, reducing labor costs and improving packaging efficiency and accuracy.
Smart Images
Figure CN118270291B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automatic packaging technology, and more specifically to an automatic packaging machine. Background Technology
[0002] In production, in order to facilitate the storage, transportation, sales, and intermediate processing (such as electroplating and heat treatment) of tubular or strip materials (such as copper tubes, copper strips, aluminum tubes, and aluminum strips), it is often necessary to wind the materials onto a roll. After the materials are wound up, they need to be bundled and packaged in a timely manner.
[0003] In existing technologies, for situations with high packaging requirements, such as bundling and packaging of coiled metal materials (e.g., coiled copper tubes, copper strips, aluminum tubes, aluminum strips, etc.), or because of requirements on packaging strength, or because the coiled metal materials need to be packaged before being sent to an annealing furnace for annealing, copper or steel strips are required as packaging straps, and metal strapping buckles are needed for binding. During packaging, both ends of the packaging strap must pass through the strapping buckle, and one end of the packaging strap needs to be bent after passing through the buckle to prevent the buckle from slipping off. Then, a locking machine is used to press the buckle tight so that it is pressed against the packaging strap. Finally, a cutting machine is used to cut off the excess packaging strap.
[0004] In existing technologies, automation for strapping and packaging is mostly found in strapless strapping machines. These machines do not use strapping clips but instead weld the two ends of the strapping band together using heat. However, for metal strapping, which requires metal strapping clips, existing automatic strapping machines cannot automate the process, so manual strapping is still the preferred method.
[0005] For situations requiring strapping with buckles and straps, the manual strapping process involves taking the buckle, threading the strap (threading the strap), feeding the strap (feeding the strap), tightening the strap (i.e., gathering the area enclosed by the strap until it binds the rolled material), engaging the strap (also known as engaging / locking the strap), and cutting the strap. Feeding the strap requires moving it in the direction of the desired binding path, while threading the strap requires passing it through a specific channel (the channel is a passage on the roll designed for easy strapping; to facilitate strap insertion, there are symmetrical transition grooves at both ends of the channel on the roll, which are connected to the channel; both the channel and the transition grooves are existing technologies). Although tightening the strap, engaging the buckle, and cutting the strap can be accomplished by integrated buckle-locking machines (also known as locking devices or buckle lockers), these machines currently require manual handling, resulting in high labor intensity. Therefore, the current strapping method remains cumbersome and inefficient. Summary of the Invention
[0006] The present invention aims to provide an automatic packaging machine to solve the problem of low efficiency caused by manual packaging using existing packaging buckles and straps.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] An automatic strapping machine includes an integrated buckle-locking machine that integrates the functions of tightening strapping, engaging strapping buckles, and cutting strapping. The integrated buckle-locking machine is installed on a first lifting device and also includes a strapping buckle releaser, a strap feeder, and a strap receiver. The strapping buckle releaser is used to push the strapping buckle to be used to a ready position; the strap feeder is used to insert the strapping that has passed through the strapping buckle into the strap passage; and the strap receiver is used to pull the strapping from the discharge end of the strap passage and to re-insert the end of the strapping into the strapping buckle in the ready position.
[0009] The principle and advantages of this solution are as follows: When using this solution, the strapping tape to be packaged first passes through the locking device, then through the strapping buckle located in the ready-to-use position, and then is inserted into the tape feeder and exits the feeder. Afterwards, the tape feeder drives the end of the strapping tape into the tape passage, the locking device activates, and the strapping tape is fed out of the tape passage. Then, the tape receiver pulls the strapping tape out from the outlet end of the tape passage and re-inserts the end of the strapping tape into the strapping buckle in the ready-to-use position. Inside, the strapping passes through the buckle again; then, the section of strapping extending beyond the buckle is bent; finally, the buckle retracts the strapping to gradually close the area enclosed by the strapping. After the strapping is tightened, the integrated buckle machine of the buckle engages the buckle and cuts the strapping. During the process of closing the area enclosed by the strapping, the first lifter moves the integrated buckle machine closer to the material being packaged to ensure that the integrated buckle machine engages the buckle and cuts the strapping after the strapping has tightened the material.
[0010] This solution automates the entire packaging process by incorporating a locking device, a packing buckle release device, a tape feeder, and a tape connector, thereby eliminating labor costs and improving packaging efficiency.
[0011] Preferably, as an improvement, the tape feeder includes a guide clamp and a first rotary driver. The guide clamp is provided with a guide channel for guiding the feeding of the packing tape. The guide clamp is fixedly installed at the output end of the first rotary driver, which drives the guide clamp to rotate.
[0012] Beneficial effects: When using this solution, the conveyed strapping moves along the guide channel. In this solution, it is only necessary to rotate the guide clamp by a set angle so that the conveying direction of the strapping can be aligned with the conveyor channel. Then, the strapping is fed by the traction component and guided by the guide clamp to pass through the conveyor channel.
[0013] Preferably, as an improvement, the tape feeder further includes a second lifter for driving the guide clamp to rise and fall.
[0014] Beneficial effect: The second lifter allows for adjustment of the guide clamp's height, making it easier to accurately insert the packing strap into the conveyor channel with fewer adjustments required.
[0015] Preferably, as an improvement, the guide clamp is oscillating relative to the output end of the first rotary driver, and a guide seat is connected to the guide clamp. The guide seat is close to the discharge end of the guide clamp and is used to cooperate with adjacent stiffeners on the drum.
[0016] Beneficial effects: Because the tape passage and tape transition groove change slightly with the rotation of the drum, there are generally 2, 4 or 6 tape passages and tape transition grooves on the drum (in the prior art, the tape passage and tape transition groove are one-to-one and the positions are aligned, that is, the port of the tape passage is connected to the tape transition groove). However, it cannot be guaranteed that the drum will stop at the same position every time it rotates, which causes the guide clamp to not be completely aligned with the tape passage, making it difficult to achieve accurate tape insertion.
[0017] This solution improves the probability of the packing strap on the guide clip aligning with the packing strap by setting the guide clip to be able to swing and installing a guide seat on the guide clip. When the guide clip approaches the belt conveyor under the action of the lift, the guide seat guides the approach process.
[0018] Preferably, as an improvement, first elastic elements are symmetrically installed on both sides of the swing center of the guide clamp, one end of the first elastic element is fixed on the guide clamp, and the other end of the first elastic element is fixedly installed on the output end of the first rotary driver.
[0019] Beneficial effect: By setting the first elastic element, the guide clamp can automatically reset after each swing due to the first elastic element.
[0020] Preferably, as an improvement, the guide seat is slidably connected to the guide clamp, and the guide seat can move closer to or further away from the guide clamp after sliding. A second elastic element is installed between the guide seat and the guide clamp.
[0021] Beneficial effects: In order to avoid hard collision between the guide clamp and the drum during the process of the guide clamp approaching the belt feed channel, a second elastic element is designed so that the guide seat has already contacted the belt feed transition groove before the guide clamp contacts the feed end of the belt feed channel during the approach process, thereby reducing the intensity of the impact between the guide seat and the drum and realizing the protection of the belt feeder when it approaches the belt feed channel.
[0022] Preferably, as an improvement, the tape feeder further includes a translator that drives the guide clamp to move along the width direction of the packing tape, or a swing driver that drives the guide clamp to rotate away from the packing tape.
[0023] Beneficial effects: This solution facilitates the translation or swing driver to move the guide clamp away from the strapping in a translation or swing manner, preparing for the tightening of the strapping before the subsequent strapping buckle clamps.
[0024] Preferably, as an improvement, the tape receiver includes a third lifter, a second rotary driver, and a receiving clamp. The second rotary driver is installed at the output end of the third lifter, and the receiving clamp is installed at the output end of the second rotary driver. The receiving clamp is provided with a receiving channel, which can be enlarged or reduced. When the receiving channel is reduced, it can clamp the packing tape.
[0025] Beneficial effects: The tape receiver in this solution is used to clamp the strapping tape that has passed through the tape channel, making it convenient to pull the strapping tape closer to the packing buckle via the lifting function of the third lifter; while the second rotary driver drives the rotating receiving clamp, which allows the end of the strapping tape to change its orientation, thereby making it easier to align the end of the strapping tape with the feed end of the packing buckle at the set position (the set position is the tape threading position of the packing buckle to be threaded, also known as the standby position), further improving the degree of automation.
[0026] Preferably, as an improvement, the packing buckle release device includes a storage rack and a packing buckle pushing component. The storage rack is fixedly installed and has a stacking channel for stacking packing buckles. The storage rack has a dropping hole, and the lower end of the stacking channel is connected to the dropping hole. The pushing component includes a pusher and a push block. The pusher is used to drive the push block to move, and the push block is used to push the packing buckles falling from the dropping hole to a set position.
[0027] Beneficial effects: When using this solution, multiple packing clips can be stacked in the stacking channel of the storage rack. After each packing is completed, the pusher moves the push block, which pushes the packing clip that has fallen from the discharge hole to the set position. When used in conjunction with an automatic packing machine, this solution can automatically release the packing clips. Compared to the existing method of manually retrieving packing clips each time, this solution can achieve automatic release of packing clips, which helps to improve the degree of automation and thus improve work efficiency.
[0028] In addition, the stacking channel on the storage rack in this solution allows multiple packing clips to be placed in the stacking channel, which integrates the storage and feeding of packing clips and reduces the frequency of adding packing clips.
[0029] Preferably, as an improvement, the packing buckle release device further includes a fixedly installed limiting member, which is located above the push block. A receiving space for accommodating a packing buckle is formed between the limiting member and the push block. The limiting member is provided with a stop edge, which is used to limit the movement stroke of the packing buckle.
[0030] Beneficial effect: By setting up this solution, after the pusher pushes out the push block, the packing buckle can move from directly below the material drop hole to abut against the stop edge of the limiting component, thus preventing the packing buckle from being pushed out excessively.
[0031] Preferably, as an improvement, a lower guide member is fixedly connected to the push block, and an upper guide member is fixedly connected to the limiting member. The lower guide member has an L-shaped cross-section, and the upper guide member has an inverted L-shaped cross-section. The lower guide member and the upper guide member form a flared opening, which is used for guiding the buckle when the packaging strap is threaded.
[0032] Beneficial effects: By setting up upper and lower guide components, this solution enables the flared opening formed by the upper and lower guide components to guide the strapping tape that is inserted into the strapping buckle, reducing the requirements for tape feeding on the automatic strapping machine and thus reducing the probability of malfunctions.
[0033] Preferably, as an improvement, it also includes a bending assembly, which includes a bending driver and a bending plate. The bending plate can be located at the discharge end of the strapping buckle. The bending driver is used to drive the bending plate to rotate. The bending assembly is mounted on a forward and backward driver, which is used to drive the bending plate away from the strapping.
[0034] Beneficial effects: This solution uses a bending driver on the bending assembly to drive the rotation of the bending plate, thereby enabling the bending plate to bend the packing strap that passes through the packing buckle, further improving the level of automation.
[0035] In addition, after the strapping is bent, in order to avoid the presence of the bending plate affecting the subsequent tensioning mechanism's tightening of the strapping, the bending plate is moved away from the set position by the forward and backward drive, so that the bending plate does not affect the subsequent strapping tensioning and strapping buckle engagement.
[0036] Preferably, as an improvement, the forward / backward drive can be the pusher. Attached Figure Description
[0037] Figure 1 This is a schematic diagram illustrating the relationship between the packing strap and the packing buckle in Embodiment 1 of the present invention (existing technology).
[0038] Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention (in this state, the packing strap on the feeder is aligned with the belt passage).
[0039] Figure 3 forFigure 2 The main view.
[0040] Figure 4 for Figure 2 A partial front sectional view without packing straps.
[0041] Figure 5 This is a front view schematic diagram of the automatic packaging machine according to Embodiment 1 of the present invention, with the packaging strap on the tape receiver clamped and facing the ready position.
[0042] Figure 6 This is a three-dimensional structural diagram of the locking device and the packing buckle release device in Embodiment 1 of the present invention.
[0043] Figure 7 for Figure 6 The main view.
[0044] Figure 8 for Figure 6 The main view of the latch.
[0045] Figure 9 for Figure 8 A schematic diagram of the local structure after rotating 90°.
[0046] Figure 10 for Figure 9 Front sectional view.
[0047] Figure 11 for Figure 9 The state is a schematic diagram showing the structure of the locking assembly and the cutting blade on the latch.
[0048] Figure 12 A three-dimensional structural schematic diagram of the lock and buckle release device in Embodiment 1 of the present invention.
[0049] Figure 13 for Figure 12 A diagram showing the result after rotating 90°.
[0050] Figure 14 for Figure 12 The main view.
[0051] Figure 15 for Figure 12 The right view.
[0052] Figure 16 for Figure 12 Right sectional view.
[0053] Figure 17 for Figure 12 A partial front sectional view.
[0054] Figure 18 This is a schematic diagram of the position of the bending plate before the initial threading of the strap, according to Embodiment 1 of the present invention.
[0055] Figure 19 This is a schematic diagram of the second position of the bending plate before the packing strap is threaded again in Embodiment 1 of the present invention (in this state, the bending plate swings upward to push the upper packing strap upward, so as to provide space for the lower packing strap to be threaded).
[0056] Figure 20 This is a schematic diagram of the bending plate position after the packing strap is bent in Embodiment 1 of the present invention (in this state, the downward swinging bending plate bends the packing strap).
[0057] Figure 21 This is a three-dimensional structural diagram of the bending plate and push block after they have retracted in Embodiment 1 of the present invention (i.e., a state diagram after they have moved away from the ready position).
[0058] Figure 22 This is a three-dimensional structural diagram of the tape feeder according to Embodiment 1 of the present invention.
[0059] Figure 23 for Figure 22 A schematic diagram of the structure after rotating 90°.
[0060] Figure 24 Figure 22 A partial front view.
[0061] Figure 25 Figure 22 A partial right view.
[0062] Figure 26 for Figure 24 A sectional view (primarily showing the structure of the fixing part and the movable plate on the guide clip).
[0063] Figure 27 This is a right view of the guide seat on the tape feeder of Embodiment 1 of the present invention falling between adjacent stiffening plates of the roll.
[0064] Figure 28 For the corresponding Figure 27 A schematic diagram showing the state when the guide clip and traction assembly are rotated to the ready-to-thread position.
[0065] Figure 29 This is a three-dimensional structural diagram of the connector according to Embodiment 1 of the present invention.
[0066] Figure 30 for Figure 29 A schematic diagram of the local three-dimensional structure after rotating 90°. Detailed Implementation
[0067] The following detailed description illustrates the specific implementation method:
[0068] The reference numerals in the accompanying drawings include: frame 700, strapping tape feeder 600, integrated locking machine 100, tensioning mechanism 101, tensioning driver 1011, forward and backward roller 1012, strapping plate 1013, biting mechanism 102, biting driver 1021, auxiliary plate 10211, bracket 1022, biting assembly 1023, biting arm 10231, pressure rod 10232, pressure knife block 10233, cutting knife 103, first lifter 200, lifting seat 201, photoelectric sensor 202, trigger element 203, trigger rod 204, contact plate 205;
[0069] Packing buckle release device 300, storage rack 301, material box 3011, horizontal quick clamp 3012, pusher 302, mounting plate 3021, push block 3022, support surface 30221, push surface 30222, lower guide 3023, limiter 303, edge guard 3031, upper guide 3032, bending actuator 304, bending plate 3041, connecting plate 3042, mounting plate 3043;
[0070] Belt feeder 400, second lifter 1, mounting base 11, first translator 2, first rotary drive 21, mounting plate 211, traction assembly 3, drive wheel 31, driven wheel 32, linear drive A33, guide clamp 4, guide part 41, guide groove 411, movable plate 42, pusher 43, first elastic element 44, guide seat 45, second elastic element 46, plastic block 451, position monitor 47, extension rod 48, sliding frame 49, drum 10, belt threading transition groove 10-1, stiffening plate 10-2, belt passage channel 20;
[0071] 500, receiving arm 5, second rotary driver 51, output plate 511, receiving clamp 6, fixed clamp 61, movable clamp 62, second pusher 63, second translator 52.
[0072] Example 1 is basically as shown in the appendix. Figures 2 to 30 As shown.
[0073] Combination Figures 2 to 5An automatic strapping machine includes a frame 700, a strapping tape feeder 600, a locking device, a strapping buckle releaser 300, a tape feeder 400, and a tape receiver 500. The locking device is located between the strapping tape feeder 600 and the tape feeder 400, and the tape receiver 500 is located between the strapping tape feeder 600 and the locking device. The strapping tape feeder 600 is used to release or retract the rolled strapping tape. The locking device is used to tighten the strapping tape, engage the strapping buckles, and cut the strapping tape. The strapping buckle releaser 300 is used to push the strapping buckles to be used to a ready position, which allows the tensioning mechanism 101 to easily pass the end of the strapping tape through the strapping buckle in the ready position. The tape feeder 400 is used to insert the strapping tape that has passed through the strapping buckle into the tape passage 20. The tape receiver 500 is used to pull the strapping tape out from the discharge end of the tape passage 20 and to re-insert the end of the strapping tape into the strapping buckle.
[0074] Specifically, in combination Figures 6 to 11 The locking device includes an integrated locking machine 100 and a first lifter 200. The first lifter 200 is mounted on a frame 700. The integrated locking machine 100 is mounted on a lifting seat 201 at the output end of the first lifter 200. The first lifter 200 adopts a linear module.
[0075] The integrated buckle locking machine 100 includes a tensioning mechanism 101, a biting mechanism 102, and a cutting knife 103. The tensioning mechanism 101 is used to drive the strapping to move so as to feed the strapping forward or retract it. The biting mechanism 102 is used to bite the strapping buckle. The cutting knife 103 is used to cut the strapping.
[0076] The tensioning mechanism 101 includes a tensioning driver 1011 and a forward / backward roller 1012. The tensioning driver 1011 is used to drive the forward / backward roller 1012 to rotate forward or backward. A support plate 1013 is fixed on the lifting seat 201. The support plate 1013 is located directly below the forward / backward roller 1012. After the forward / backward roller 1012 rotates, it clamps the packing strap between the support plate 1013 and the forward / backward roller 1012 for transmission.
[0077] The biting mechanism 102 includes a biting driver 1021, a bracket 1022, and a biting assembly 1023. The biting driver 1021 is fixed to the output end of the first lifter 200 (i.e., fixed on the lifting seat 201). The biting assembly 1023 is mounted on the bracket 1022. After the biting driver 1021 is started, it can drive the biting arm 10231 of the biting assembly 1023 to achieve biting of the packing buckle. In order to ensure that the biting assembly 1023 does not affect the feeding / retraction of the packing strap when it is not working, the bracket 1022 is slidably connected to the lifting seat 201. The sliding direction of the bracket 1022 is parallel to the lifting direction. A spring is fixedly connected between the bracket 1022 and the output end of the biting driver 1021. The deformation direction of the spring is the lifting direction, so that when the biting assembly 1023 is not working, the biting assembly 1023 and the bracket 1022 can move away from the biting position of the packing buckle as the biting driver 1021 rises.
[0078] The cutting blade 103 is slidably connected to the lifting seat 201. A spring is connected between the cutting blade 103 and the lifting seat 201. The spring gives the cutting blade 103 a force away from the bearing plate 1013. A pressing block 10233 is connected to the biting assembly 1023. The pressing block 10233 is used to push the cutting blade 103 against the spring force and cut the packing strap when the two biting arms 10231 of the biting assembly 1023 come close together.
[0079] The construction of the engagement component 1023, the bracket 1022, and the cutting blade 103 in this embodiment is based on existing technology, such as the linkage mechanism and bracket disclosed in patent publication number CN106347735A. The four-bar linkage in that linkage mechanism is the engagement component of this embodiment. The relationship between the bracket and the engagement component is the same as that disclosed patent. The linkage mechanism of that disclosed patent can not only achieve the engagement of the strapping buckle under the drive, but also use the descent of the drive rod during the engagement process to drive the cutting blade to move downward and cut the strapping tape. Of course, the engagement component in this embodiment can also be as disclosed in a short-stroke strapping machine with patent publication number CN218198980U. Figure 5 The structure of.
[0080] In this embodiment, to ensure space efficiency, the bite actuator 1021 is installed directly above the tensioning mechanism 101, and the output of the bite actuator 1021 is transmitted to the bracket 1022 and the bite assembly 1023 through the cooperation of the auxiliary plate 10211. Specifically, the auxiliary plate 10211 is fixedly installed at the output end of the bite actuator 1021 (in this embodiment, a cylinder), and the auxiliary plate 10211 and the pressure rod 10232 of the bite assembly 1023 (i.e., CN218198980U) are connected. Figure 5The spring of the connecting bracket 1022 is fixedly connected to the top of the bracket 1022 and the other end is fixed to the auxiliary plate 10211. The spring is sleeved on the pressure rod 10232.
[0081] The locking device also includes a monitor, which is installed on the lifting base 201 of the first lifting device 200. The monitor is used to stop the first lifting device 200 when the distance between the integrated locking machine 100 and the material to be packaged reaches a set value. Specifically, the monitor includes a photoelectric sensor 202 and a trigger 203. The photoelectric sensor 202 is fixed on the lifting base 201, and the trigger 203 is fixedly installed on the top of the trigger rod 204. The trigger rod 204 is vertically slidably connected to the lifting base 201, and a contact plate 205 is fixed at the bottom end of the trigger rod 204. The contact plate 205 can be pushed by the material to be packaged, and the bottom end of the contact plate 205 can be located outside the integrated locking machine 100.
[0082] Combination Figures 12 to 21 The packing buckle release device 300 includes a storage rack 301, a packing buckle pushing component, and a bending component. The storage rack 301 is fixedly installed, and a material box 3011 is detachably connected to the storage rack 301 via a horizontal quick clamp 3012 (the horizontal quick clamp 3012 is fixed to the storage rack 301, and the storage rack 301 is provided with a U-shaped storage space for the material box 3011. The horizontal quick clamp 3012 can press the material box 3011 tightly into the storage space of the storage rack 301). The material box 3011 includes four uprights, and the four uprights are connected at their ends by a connecting structure. The four uprights enclose a vertical stacking channel for stacking packing buckles. The storage rack 301 has a material drop hole, and the lower end of the stacking channel is connected to the material drop hole.
[0083] The pushing component includes a pusher 302 and a pusher block 3022. The pusher 302 is fixedly installed on the storage rack 301. The pusher 302 is used to drive the pusher block 3022 to move. In this embodiment, the pusher 302 is a cylinder. The output end of the cylinder is fixed with a mounting plate 3021. The pusher block 3022 is fixed on the mounting plate 3021. The pusher block 3022 has a horizontal support surface 30221 and a vertically arranged abutting surface 30222 integrally formed on it. The support surface 30221 is located below the material drop hole. The distance between the support surface 30221 and the material drop hole is greater than the height of one packing buckle and less than the height of two packing buckles. In this embodiment, the spacing is controlled to be slightly greater than the height of one packing buckle, for example, 1-5mm higher than the height of the packing buckle. The abutting surface 30222 is located on one side of the support surface 30221 and is used to push the packing buckle that falls on the support surface 30221.
[0084] The bottom of the storage rack 301 is also fixed with a limiting member 303. The limiting member 303 is located above the push block 3022. The distance between the limiting member 303 and the supporting surface 30221 is used to accommodate a packing buckle (that is, the accommodating space of the packing buckle). The limiting member 303 has an integrally formed edge 3031. The edge 3031 and the pushing surface 30222 can be located on both sides of the packing buckle. In this embodiment, the edge 3031 blocks less than half the height of the packing buckle so that the packing buckle can be viewed from the gap between the push block 3022 and the edge 3031.
[0085] The stacked packing buckles fall into the support surface 30221 through the drop hole under gravity. Under the push of the pusher 302, the packing buckles are pushed from directly below the drop hole to the ready position. To ensure the stability of the packing buckles during the pushing process, a guide groove 411 is opened on the support surface 30221. The guide groove 411 is used to support the packing buckles and form a guide and constraint on the movement direction of the packing buckles.
[0086] A lower guide 3023 is fixed to one end of the push block 3022 near the stop edge 3031 of the limiting member 303, and an upper guide 3032 is fixed to one end of the limiting member 303 near the stop edge 3031. The cross-section of the lower guide 3023 is L-shaped, and the cross-section of the upper guide 3032 is inverted L-shaped. The lower guide 3023 and the upper guide 3032 form a flared mouth, which is used for guiding when the packaging buckle is threaded.
[0087] To facilitate automatic bending of the end of the strapping after the strapping buckle is pushed to the ready position, a bending component is fixedly installed on the mounting plate 3021 connected to the output end of the pusher 302. The bending component includes a bending driver 304 and a bending plate 3041. The bending driver 304 is fixed on the mounting plate 3021, and the bending plate 3041 can be located at the output end of the strapping buckle. The bending driver 304 is used to drive the bending plate 3041 to rotate, thereby bending the strapping that passes through the strapping buckle to the outside of the strapping buckle.
[0088] The bending plate 3041 is eccentrically positioned relative to the output shaft center of the bending driver 304. Specifically, to save space and not affect the movement of the push block 3022, an L-shaped connecting plate 3042 is fixed on the output disc of the bending driver 304. A mounting plate 3043 is welded to the free end of the L-shaped connecting plate 3042. The bending plate 3041 is fixed on the mounting plate 3043, which is located on one side of the strapping (the mounting plate 3043 is located on the side when the strapping buckle is in the standby position) to guide the strapping after continuous threading and feeding.
[0089] Combination Figures 22 to 28The belt feeder 400 is located on the feeding end side of the belt conveyor 20. The belt feeder 400 includes a second lifter 1, a first translator 2, a first rotary driver 21, a traction component 3, and a guide clamp 4. The output end of the second lifter 1 is fixed with a mounting base 11, and the first translator 2 is fixed on the mounting base 11. The second lifter 1 is used to drive the first translator 2 to move vertically. The output end of the first translator 2 can move horizontally. In this embodiment, the second lifter 1 adopts a linear module, and the first translator 2 is a linear driver, specifically a ball screw structure in this embodiment. The output end of the first translator 2 is fixed with the first rotary driver 21, and the output end of the first rotary driver 21 is fixed with a mounting plate 3021. The traction component 3 and the guide clamp 4 are mounted on the mounting plate 3021. In this embodiment, the first rotary driver 21 is a servo motor, and the first rotary driver 21 drives the mounting plate 3021 at the output end to rotate through belt drive.
[0090] The traction assembly 3 is used to pull and convey the packing strap. The traction assembly 3 includes a driving wheel 31 and a driven wheel 32. At least one of the driving wheel 31 and the driven wheel 32 is movable to adjust the distance between the driving wheel 31 and the driven wheel 32. In this embodiment, the driving wheel 31 is rotatably connected to the mounting plate 3021. The driving wheel 31 is equipped with a servo motor, which is fixed to the mounting plate 3021 and used to drive the driving wheel 31 to rotate. The driven wheel 32 is mounted on a linear driver A33. The linear driver A33 is used to drive the driven wheel 32 away from or closer to the driving wheel 31. The linear driver A33 is fixed to the mounting plate 3021.
[0091] Both the traction assembly 3 and the guide clamp 4 are eccentrically set about the output center of the first rotary driver 21 (the output center in this embodiment is also the rotation center of the mounting plate 3021). The first rotary driver 21 is used to drive the guide clamp 4 to rotate, and the rotating guide clamp 4 is used to change the conveying direction of the packing tape.
[0092] The guide clamp 4 is capable of swinging. The guide clamp 4 is provided with a guide channel. The cross-sectional width of the guide channel gradually decreases from the feed end to the discharge end to facilitate the insertion of the packing strap into the guide channel and to limit the position of the packing strap. The swing center of the guide clamp 4 is located at the center of the width of the guide channel and the swing axis of the guide clamp 4 is perpendicular to the guide channel. Specifically, a support block is fixed on the mounting plate 3021, and the guide clamp 4 is rotatably connected to the support block through the swing axis.
[0093] The guide clamp 4 includes a guide part 41 and a movable plate 42. The guide part 41 is provided with a guide groove 411, which has a U-shaped cross-section. The left and right side walls of the U-shaped guide groove 411 have different heights, with the side wall closer to the mounting plate 3021 being higher. The guide part 41 is located on the inner side relative to the movable plate 42 (that is, the guide part 41 is closer to the swing center of the guide clamp 4). The swing shaft is located on the side near the feed end of the guide channel. The guide part 41 is rotatably connected to the support block. A pusher 43 (i.e., a pusher) is fixedly installed on the side wall of the higher guide part 41. The actuator 43 is installed on the high side wall of the U-shaped cross section, and the movable plate 42 is installed on the output end of the actuator 43. The actuator 43 is used to drive the movable plate 42 away from or near the bottom of the guide groove 411. After the movable plate 42 approaches the bottom of the guide groove 411, the guide groove 411 and the movable plate 42 enclose a guide channel. In this embodiment, the actuator 43 is a cylinder. After the movable plate 42 moves away from the guide groove 411, a space is left between the top of the low side wall of the guide groove 411 and the movable plate 42 for the packing strap to move freely, which facilitates the subsequent removal of the packing strap from the guide clamp 4.
[0094] To ensure that the guide clamp 4 can return to its original position after swinging, first elastic elements 44 are symmetrically installed on both sides of the guide channel of the guide clamp 4. One end of the first elastic element 44 is fixed to the guide clamp 4, and the other end of the first elastic element 44 is fixedly installed on the support block or mounting plate 3021. The two first elastic elements 44 are symmetrically arranged about the swing axis.
[0095] In order to ensure that the end of the packing strap can be aligned with the tape-feeding transition groove 10-1 on the drum 10 before feeding, a guide seat 45 is connected to the cantilever end of the guide clamp 4. The guide seat 45 is used to cooperate with the adjacent stiffening plate 10-2 on the drum 10. The guide seat 45 can slide into the space between the adjacent stiffening plates 10-2 of the drum 10.
[0096] To avoid hard contact between the tape feeder 400 and the drum 10, the guide seat 45 is slidably connected to the guide clamp 4. After sliding, the guide seat 45 can move closer to or away from the guide clamp 4. A second elastic element 46 is installed between the guide seat 45 and the guide clamp 4. Both the first elastic element 44 and the second elastic element 46 are springs. The second elastic element 46 is used to give the guide seat 45 a pulling force to move closer to the guide clamp 4.
[0097] In order to reduce the wear of the guide seat 45 and reduce the friction between the guide seat 45 and the upper stiffening plate 10-2 of the drum 10, wear-resistant plastic blocks 451 are detachably installed on both sides of the guide seat 45. The plastic blocks 451 are used to contact the stiffening plate 10-2.
[0098] To limit the length of the packing strap extending out of the guide channel, a position monitor 47 is installed on the guide clamp 4. The position monitor 47 is used to monitor whether the packing strap has been conveyed to the set position. In this embodiment, an extension rod 48 is fixedly installed on the guide clamp 4 (a sliding frame 49 is fixed on the extension rod 48, the guide seat 45 slides on the sliding frame 49, one end of the second elastic member 46 is fixed to the end of the guide seat 45, and the other end is fixed to the sliding frame 49 (the projection of the sliding frame 49 is T-shaped)). The extension rod 48 faces the guide channel, and the position monitor 47 is installed at the end of the extension rod 48. The position monitor 47 is a photoelectric sensor. A detection hole is opened on the extension rod 48, and the light from the photoelectric sensor can pass through the detection hole. When the packing strap blocks the detection hole, the photoelectric sensor sends a signal to the controller, thereby controlling the servo motor on the traction assembly 3 to stop rotating after a delay, ensuring that the extension length of the packing strap is sufficient to facilitate the subsequent packing strap being placed on the threading transition groove 10-1 on the drum 10 after rotating with the first rotary driver 21.
[0099] To facilitate the translation of the guide clamp 4 to accommodate different width specifications of the drum 10, the tape feeder 400 also includes a first lateral mover. A second lifter 1 is installed at the output end of the first lateral mover. The first lateral mover drives the second lifter 1 to move along the axial direction of the drum 10. In this embodiment, the lateral mover includes a motor, a gear, and a lateral mover seat. The motor is fixed on the lateral mover seat, and the second lifter 1 is also fixed on the lateral mover seat. The lateral mover seat slides on the frame 700 in a direction parallel to the axial direction of the drum 10. A gear is fixedly installed on the output shaft of the motor, and a rack is fixed on the frame 700. The length direction of the rack is parallel to the axial direction of the drum 10. The gear meshes with the rack so that after the motor starts, the gear meshes with the fixedly installed rack, thereby causing the first lateral mover to drive the entire tape feeder 400 to move in a direction parallel to the axial direction of the drum 10.
[0100] Combination Figure 29 and Figure 30The tape receiver 500 is located on the discharge end side of the tape conveyor 20. The tape receiver 500 is used to catch the packing tape passing through the tape conveyor 20. The tape receiver 500 includes a third lifter, the output end of which is fixed to a receiving arm 5. The third lifter is a vertically arranged linear module. A second rotary driver 51 is mounted on the receiving arm 5. An output plate 511 is fixed to the output end of the second rotary driver 51. A receiving clamp 6 is fixed to the output plate 511. The receiving clamp 6 includes a fixed clamping plate 61 and a movable clamp. Plate 62 and second pusher 63, fixed clamp 61 fixed on output plate 511, second pusher 63 fixed on output plate 511, movable clamp 62 fixed on output end of second pusher 63, second pusher 63 is used to drive movable clamp 62 away from or close to fixed clamp 61, a receiving channel is formed between movable clamp 62 and fixed clamp 61, movable clamp 62 moves so that the receiving channel of receiving clamp 6 can be enlarged or reduced to meet the clamping and releasing requirements of the packing strap.
[0101] The feed end of the movable clamp 62 has a guiding structure so that the feed end of the receiving channel forms a funnel-shaped receiving port, thereby reducing the difficulty of receiving materials.
[0102] To ensure that the receiving device does not affect the tension of the strapping after it is inserted into the strapping buckle, a second translation device 52 or a second swing driver is provided between the receiving arm 5 and the second rotary driver 51. The second translation device 52 is used to drive the second rotary driver 51 and the receiving clamp 6 to translate along the width direction of the strapping, so that the strapping can be moved out of the receiving channel of the receiving clamp 6. The second swing driver is used to drive the second rotary driver 51 and the receiving clamp 6 to swing away from the strapping, thereby providing space for the tension of the strapping. The attached figure of this embodiment shows the second rotary driver 51 and the receiving clamp 6 being translated by the second translation device 52.
[0103] The strapping device 500 in this embodiment is used to clamp the strapping that passes through the strapping channel 20, so that the strapping can be pulled by the lifting function of the receiving arm 5 in the future, thereby improving the automation of the strapping.
[0104] The second rotary driver 51 in this embodiment allows the direction of the discharge end of the receiving channel of the receiving clamp 6 to be changed. As the receiving clamp 6 moves towards the packing buckle while holding the packing strap, the end of the packing strap can be rotated by the second rotary driver 51. On the one hand, the packing strap can form an enclosing posture outside the material. On the other hand, it can also prepare for the end of the packing strap to be inserted into the packing buckle again, further improving the degree of automation.
[0105] In addition, to improve the accuracy of the strapping tape being fed into the funnel-shaped receiving port of the receiving clamp 6 after it passes through the tape passage 20, a tape receiving guide block is provided on the roll 10. The tape receiving guide block has an arc-shaped guide surface. One end of the guide surface is used to connect with the tape passage, and the other end of the guide surface is used to connect with the receiving port of the receiving clamp 6.
[0106] In this embodiment, to facilitate the movement of the tape connector 500 along a direction parallel to the axis of the drum 10, a second lateral mover is also provided on the tape connector 500, and a third lifter is fixed to the output end of the second lateral mover. The second lateral mover is the same as the first lateral mover.
[0107] The packaging method of the automatic packaging machine in this embodiment includes the following steps:
[0108] S1. Release the strapping tape. The strapping tape release device 600 releases the strapping tape. The strapping tape is manually pulled through the tensioning mechanism 101 of the locking device, below the biting component 1023, and the strapping buckle in the standby position, and finally fed into the traction component 3 of the tape feeder 400.
[0109] S2, the traction component 3 or the tensioning mechanism 101 feeds the strapping tape, and the strapping tape moves along the guide channel until the strapping tape completely passes through the guide channel and extends a section beyond the guide channel, at which point the traction on the strapping tape stops.
[0110] S3. Control the first rotary driver 21 to drive the output center to rotate, so that the end of the packing strap rotates synchronously with the guide clamp 4, in preparation for the packing strap to be aligned with the tape passage 20.
[0111] S4. Control the second lifting device 1 to start so that the guide clamp 4 approaches the tape-passing transition groove 10-1 of the drum 10. This step S4 is performed after or simultaneously with step S3. During steps S3 and S4, the feeding end of the packing tape is always in a state where it can be pulled out freely or the packing tape is driven forward by the tensioning mechanism 101.
[0112] S5. After the packing strap falls into the transition groove and contacts the bottom of the transition groove, the first rotary drive 21 and the first lifter 200 are stopped, and the packing strap is fed by the traction component 3 (the tensioning mechanism 101 is also feeding the strap during this process) until the packing strap is inserted into and passes through the belt passage 20.
[0113] S6. The receiving arm 5 descends, aligning the receiving channel of the receiving clamp 6 with the strapping tape emerging from the tape passage 20; the strapping tape continues to be fed until it extends a short distance beyond the receiving clamp 6, at which point feeding stops (e.g., ...). Figure 3 and Figure 4 (As shown).
[0114] S7. The receiving clamp 6 clamps the strapping, and the receiving arm 5 rises; the second rotary driver 51 is controlled to rotate, and the discharge end of the receiving clamp 6 faces the side where the strapping buckle is located (e.g., Figure 5 (As shown), then the second lateral mover is activated, the end of the strapping extending from the receiving clamp 6 moves toward the strapping buckle releaser 300, inserts the strapping into the strapping buckle, and the strapping extends a certain length beyond the strapping buckle.
[0115] S8, the bending component on the packing buckle releaser 300 bends the packing strap. After bending, both the bending component and the pushing component move backward away from the packing strap.
[0116] S9. After the strapping tape is released from the strapping buckle release device 300, the tape feeder 400 and the tape receiver 500, the tensioning mechanism 101 on the locking device is controlled to retract the strapping tape. During the retraction process, the first lifting device 200 is controlled to drive the integrated locking machine 100 to descend to approach the material being packaged until the monitor is triggered. The first lifting device 200 stops working and the integrated locking machine 100 is controlled to tighten the strapping tape. After that, the strapping buckle engages and the strapping tape is cut.
[0117] When this embodiment is used, the entire packaging process is fully automated, which greatly improves packaging efficiency. Furthermore, the automatic packaging machine uses guide seats 45, first elastic elements 44, second elastic elements 46, springs, etc. to achieve functions such as guiding, alignment, and buffering, which reduces the probability of failure during the packaging process and also reduces the difficulty of controlling the automatic packaging machine.
[0118] Example 2
[0119] This embodiment also provides an application of an automatic packaging machine, including using the automatic packaging machine for bundling and packaging metal tubes / strips after winding, wherein the packaging straps and packaging buckles used during packaging are all made of metal.
[0120] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An automatic strapping machine, comprising an integrated locking machine that integrates the functions of tightening strapping, engaging strapping buckles, and cutting strapping, characterized in that: The integrated buckle-locking machine is installed on the first lifting device and also includes a buckle releaser, a tape feeder, and a tape receiver. The buckle releaser is used to push the buckle to be used to the ready position; the tape feeder is used to insert the strapping tape that has passed through the buckle into the tape channel; the tape receiver is used to pull the strapping tape out from the discharge end of the tape channel and to insert the end of the strapping tape back into the buckle in the ready position. The tape feeder includes a guide clamp and a first rotary driver. The guide clamp is provided with a guide channel for guiding the feeding of the packing tape. The guide clamp is fixedly installed at the output end of the first rotary driver, and the first rotary driver is used to drive the guide clamp to rotate. The guide clamp is oscillating relative to the output end of the first rotary driver. A guide seat is connected to the guide clamp, and the guide seat is close to the discharge end of the guide clamp. The guide seat is used to cooperate with the adjacent stiffener on the drum. The guide clamp has first elastic elements symmetrically installed on both sides of its swing center. One end of the first elastic element is fixed to the guide clamp, and the other end of the first elastic element is fixedly installed on the output end of the first rotary driver. The guide seat is slidably connected to the guide clamp. After sliding, the guide seat can move closer to or further away from the guide clamp. A second elastic element is installed between the guide seat and the guide clamp.
2. The automatic packaging machine according to claim 1, characterized in that: The tape feeder also includes a second lifter for driving the guide clamp to rise and fall.
3. An automatic packaging machine according to claim 1, characterized in that: The tape feeder also includes a translator that moves the guide clamp along the width of the packing tape, or a swing driver that moves the guide clamp away from the packing tape in a rotating manner.
4. An automatic packaging machine according to any one of claims 1-3, characterized in that: The tape receiver includes a third lifter, a second rotary driver, and a receiving clamp. The second rotary driver is installed at the output end of the third lifter, and the receiving clamp is installed at the output end of the second rotary driver. The receiving clamp is provided with a receiving channel, which can be enlarged or reduced. When the receiving channel is reduced, it can hold the packing tape.
5. An automatic packaging machine according to any one of claims 1-3, characterized in that: The packing buckle release device includes a storage rack and a packing buckle pushing component. The storage rack is fixedly installed and has a stacking channel for stacking packing buckles. The storage rack has a material drop hole, and the lower end of the stacking channel is connected to the material drop hole. The pushing component includes a pusher and a push block. The pusher is used to drive the push block to move, and the push block is used to push the packing buckles that fall from the material drop hole to a set position.
6. An automatic packaging machine according to any one of claims 1-3, characterized in that: It also includes a bending assembly, which includes a bending driver and a bending plate. The bending plate can be located at the discharge end of the strapping buckle. The bending driver is used to drive the bending plate to rotate. The bending assembly is mounted on a forward and backward driver, which is used to drive the bending plate away from the strapping.