A locking device for packing buckles

Abstract

This invention relates to the field of automatic packaging technology, specifically disclosing a locking device for packaging buckles. The device includes a locking machine, which comprises a tensioning mechanism, a biting mechanism, and a cutting blade. It also includes a lifter and a monitor, both installed at the output end of the lifter. The monitor stops the lifter when the distance between the locking machine and the material to be packaged reaches a set value. This solution addresses the problem of high labor intensity in manual packaging when locking packaging buckles and strapping in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of automatic packaging technology, and more specifically to a locking device for packaging buckles. 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 reel. 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, feeding the strap, tightening the strap, engaging the strap (also known as locking the strap), and cutting the strap. This process is cumbersome and inefficient. In particular, the locking process requires manual strapping using a handheld strapping machine (also known as a buckle locker). The handheld strapping machine includes a tensioning mechanism, an engaging mechanism, and a cutter. The tensioning mechanism tightens the strap, the engaging mechanism engages the buckle with the double-layered strap, and the cutter cuts the strap after engagement. Although the current manual strapping machine integrates the functions of strap tightening, buckle engagement, and strap cutting, it is heavy and requires a lot of labor for long-term use. Summary of the Invention

[0006] The present invention aims to provide a locking device for packing buckles, so as to solve the problem of high labor intensity in manual packing when locking packing buckles and packing straps in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A locking device for packing buckles includes a locking machine, which includes a tensioning mechanism, a biting mechanism, and a cutting blade. It also includes a lifter and a monitor. Both the locking machine and the monitor are installed at the output end of the lifter. The monitor is used to stop the lifter when the distance between the locking machine and the material to be packed reaches a set value.

[0009] The principle and advantages of this solution are as follows: By installing the locking machine on the lifting device, the locking machine can be raised and lowered via the lifting device without manual handling, thus solving the problem of high labor intensity associated with manual handling of the packaging machine.

[0010] In addition, the installation of a monitor in this solution can prevent the locking device from getting too close to the material to be packaged, which could cause the material to be packaged to be crushed or damaged by the locking device.

[0011] Preferably, as an improvement, the monitor includes a sensor and a trigger. The sensor is fixed to the output end of the elevator, the trigger is mounted on a trigger rod, the trigger rod is slidably connected to the output end of the elevator, and a contact block is connected to the end of the trigger rod away from the trigger. The contact block can be pushed by the material to be packaged, and the end of the contact block close to the material to be packaged can be located on the outside of the locking machine.

[0012] Beneficial effects: When using this solution, as the lifting device moves the locking machine closer to the material to be packaged, the end of the contact block is located on the outside of the locking machine. Therefore, when the locking machine approaches the material under the action of the lifting device, the contact block is the first to contact the material. As the lifting device continues to operate, the locking machine gradually approaches the material. During this approach, the trigger also gradually approaches the sensor until the distance between the locking machine and the material reaches the set value. The sensor is then triggered by the trigger, stopping the lifting device. This solution has a simple structure, is easy to implement and control, and is low in cost.

[0013] Preferably, as an improvement, the biting mechanism includes a biting driver, a bracket, and a biting assembly. The biting driver is fixed to the output end of the lifter, the bracket is slidably connected to the output end of the lifter, the sliding direction of the bracket is parallel to the lifting direction, and an elastic element is connected between the bracket and the output end of the biting driver. The biting assembly is installed on the bracket, and after the biting driver is started, it can drive the biting arm of the biting assembly to achieve biting of the packing buckle.

[0014] Beneficial effects: When using this solution, in order to ensure that the feeding / retraction of the strapping is not affected when the biting component is not in operation, an elastic element is connected between the bracket and the output end of the biting driver. The deformation direction of the elastic element is the lifting direction, so that when the biting component is not in operation, the biting component and the bracket can be moved away from the biting position of the strapping buckle by the upward movement of the biting driver.

[0015] 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 packing buckle, and the bending driver is used to drive the bending plate to rotate.

[0016] Preferably, as an improvement, the bending assembly is mounted on a forward / backward drive, which is used to move the bending plate away from the packing strap.

[0017] 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.

[0018] 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.

[0019] Preferably, as an improvement, the bending plate is eccentrically positioned relative to the output shaft center of the bending driver.

[0020] Beneficial effects: This solution uses an eccentrically designed bending plate, which makes bending the packing straps easier compared to a non-eccentric design. It also allows the packing straps to bend slowly, preventing them from bending rapidly at the initial contact point with the bending plate, which could lead to excessive stretching on one side and excessive compression on the other, thus damaging the strength of the packing strap at the bend.

[0021] Preferably, as an improvement, it also includes a storage rack and a packing buckle pushing assembly. 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 assembly 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.

[0022] Beneficial effects: When using this solution, multiple packing buckles 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 buckle that has fallen from the drop hole to the set position (the set position is the strapping position of the packing buckle to be strapped, also known as the ready position). When used in conjunction with an automatic packing machine, this solution can automatically release the packing buckles. Compared with the existing method of manually retrieving the packing buckles each time, this solution can realize the automatic release of the packing buckles, which is conducive to improving the degree of automation and thus improving work efficiency.

[0023] 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.

[0024] Preferably, as an improvement, the push block is provided with a supporting surface and a pushing surface. The supporting surface is located below the material drop hole, and the distance between the supporting surface and the material drop hole is greater than the height of one packing buckle and less than the height of two packing buckles. The pushing surface is located on one side of the supporting surface and is used to push the packing buckle that falls on the supporting surface.

[0025] Beneficial effects: The pusher in this solution moves the pusher block, and the pushing surface on the pusher block pushes the packing buckle that falls from the material drop hole onto the support surface to the standby position (i.e., the set position), realizing the automatic release of the packing buckle. This solution has a simple structure, is easy to control, and has low cost.

[0026] Preferably, as an improvement, it also includes a limiting member fixed on the storage rack, the limiting member being located above the push block, and a receiving space for accommodating a packing buckle is formed between the limiting member and the push block, the limiting member being provided with a stop edge for limiting the travel of the packing buckle.

[0027] 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.

[0028] 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.

[0029] 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. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating the relationship between the packing strap and the packing buckle in an embodiment of the present invention (prior art).

[0031] Figure 2 This is a three-dimensional structural diagram of Embodiment 1 of the present invention.

[0032] Figure 3 for Figure 2 The main view.

[0033] Figure 4 for Figure 2 A three-dimensional structural diagram of the material feeding mechanism in the middle.

[0034] Figure 5 for Figure 4 A magnified 3D view after rotating 90°.

[0035] Figure 6 for Figure 4 A partial front view.

[0036] Figure 7 for Figure 4 A partial front sectional view.

[0037] Figure 8 To reveal a 3D structural diagram of the occlusal assembly by removing the right cover plate of the support.

[0038] Figure 9 for Figure 8 A schematic diagram after rotating 90°.

[0039] Figure 10 This is a three-dimensional structural diagram of the feeding mechanism according to Embodiment 1 of the present invention.

[0040] Figure 11 for Figure 10 A schematic diagram of the three-dimensional structure after rotating 90 degrees.

[0041] Figure 12 for Figure 10 The main view.

[0042] Figure 13 for Figure 10 The right view.

[0043] Figure 14 for Figure 10 Right sectional view.

[0044] Figure 15 for Figure 10 A partial front sectional view.

[0045] Figure 16 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.

[0046] Figure 17 This is a schematic diagram of the second bending plate position before the packing strap is threaded again in Embodiment 1 of the present invention.

[0047] Figure 18 This is a schematic diagram of the bending plate position after the packing strap is bent, according to Embodiment 1 of the present invention.

[0048] Figure 19 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.

[0049] Figure 20 This is a front view of the automatic packaging machine according to Embodiment 2 of the present invention.

[0050] Figure 21 for Figure 20 The main view. Detailed Implementation

[0051] The following detailed description illustrates the specific implementation method:

[0052] The reference numerals in the accompanying drawings include: locking mechanism 100, tensioning mechanism 101, tensioning driver 1011, advance / retractor wheel 1012, support plate 1013, engagement mechanism 102, engagement driver 1021, auxiliary plate 10211, bracket 1022, engagement assembly 1023, engagement 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, and contact block. 205, feeding mechanism 300, storage rack 301, material box 3011, horizontal quick clamp 3012, pusher 302, mounting plate 3021, push block 3022, supporting surface 30221, pushing surface 30222, lower guide 3023, limiting component 303, edge guard 3031, upper guide 3032, bending driver 304, bending plate 3041, connecting plate 3042, mounting plate 3043, strapping tape feeder 600, tape feeding device 400, tape receiving device 500, frame 700.

[0053] Example 1

[0054] Combination Figures 2 to 9 A locking device for a packing buckle includes a locking machine 100, a first lifter 200 and a feeding mechanism 300. The first lifter 200 and the feeding mechanism 300 are both mounted on a frame 700. The 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.

[0055] The 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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 5 The pressure rod 10232 is fixedly connected, and one end of the spring of the connecting bracket 1022 is fixed 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.

[0061] 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 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 block 205 is fixed at the bottom of the trigger rod 204. The contact block 205 can be pushed by the material to be packaged, and the bottom of the contact block 205 can be located outside the locking machine 100.

[0062] Combination Figures 10 to 19 The locking device also includes a feeding mechanism 300, which includes a storage rack 301, a packing buckle pushing assembly, and a bending assembly. 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 against 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.

[0063] 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.

[0064] 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.

[0065] The stacked strapping buckles fall into the support surface 30221 through the drop hole under gravity. Under the push of the pusher 302, the strapping buckles are pushed from directly below the drop hole to the ready position. To ensure the stability of the strapping buckles during the pushing process, a guide groove is opened on the support surface 30221. The guide groove is used to support the strapping buckles and form a guide and constraint on the movement direction of the strapping buckles.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] The locking method using this locking device includes the following steps:

[0070] S1. The packing buckle with double-layer packing straps is located at the engagement position below the engagement mechanism 102.

[0071] S2. The bite actuator 1021 of the bite mechanism 102 is activated, which drives the bracket 1022 and the bite assembly 1023 to move downward. The bracket 1022 stops moving after it moves close to or touches the packing buckle, while the bite assembly 1023 continues to move downward under the drive of the bite actuator 1021 until the packing buckle is bitten.

[0072] S3, the cutting knife 103 cuts the packing strap.

[0073] Between steps S1 and S2, there is also a proximity step in which the locking machine 100 is brought closer to the material to be packaged by the first lifting device 200. The specific proximity steps are as follows:

[0074] The first lifter 200 drives the locking machine 100 to descend and approach the material to be packaged. During the descent of the packaging strap, the tensioning mechanism 101 is activated to retract the packaging strap (i.e., tighten the packaging strap). When the first lifter 200 descends to the point where the monitor is triggered, the first lifter 200 automatically stops. After the first lifter 200 stops, step S2 is initiated.

[0075] The packing buckle used in step S1 above is released by the feeding mechanism 300. The feeding method of the packing buckle includes the following steps:

[0076] 0P10. In the initial state, the receiving surface of push block 3022 is located directly below the discharge hole.

[0077] OP20. When strapping is required, the pusher 302 moves the bending component and the pusher block 3022 horizontally, so that the strapping buckle moves from directly below the drop hole to the ready position; at this time, the bending plate 3041 of the bending component is located below the strapping buckle's threading hole (to facilitate the subsequent strapping through), i.e. Figure 16 As shown.

[0078] 0P30, the strapping tape passes through the strapping buckle in the ready position. Before the strapping tape wraps back to the strapping buckle for re-insertion, the bending driver 304 controls the bending plate 3041 to rotate upwards (to achieve the desired effect). Figure 17 As shown), this provides space for the strapping to pass through the buckle again. Once the section of the strapping that needs to be bent is below the bending plate 3041, the bending driver 304 is activated again, causing the bending driver 304 to swing the bending plate 3041 downwards, thereby completing the end bending of the strapping (as shown). Figure 18 (As shown).

[0079] In step OP30, the flared opening on the feeding device allows the strapping to be smoothly inserted into the strapping buckle at the ready position, improving the efficiency of strapping.

[0080] In this step, the bending plate 3041 is eccentrically positioned relative to the bending driver 304, which makes it easier to bend the packing strap with the bending plate 3041. At the same time, it also facilitates the slow bending of the packing strap, avoiding the problem of the packing strap bending rapidly at the initial contact position with the bending plate 3041, which would cause one side of the packing strap to be overstretched and the other side to be overcompressed during bending, thus damaging the strength of the packing strap at the bend.

[0081] OP40. After bending is completed, the pusher 302 drives the bending component and the pusher block 3022 to retract, so that the bending plate 3041 and the pusher block 3022 move completely to the side of the packing buckle with the packing strap on, so that the packing buckle can be engaged by the locking machine 100 later.

[0082] In addition, after push block 3022 retracts, the packing buckle stacked at the bottom falls into the receiving surface of push block 3022, preparing for the next material feeding.

[0083] Compared with existing technologies, this embodiment can automatically release the strapping buckle, facilitate the threading of the strapping tape, and bend the end of the strapping tape after the strapping buckle is threaded. In addition, it can automatically tighten the strapping tape, engage the strapping buckle, and cut the strapping tape after the strapping tape is bent, which greatly improves the degree of automation and helps to advance the automatic packaging technology of metal strapping buckles and strapping tape.

[0084] Example 2

[0085] Combination Figure 20 and Figure 21 An application of a packing buckle locking device includes using the packing buckle locking device described in Embodiment 1 on an automatic packing machine for feeding and unfeeding the packing strap in the automatic packing machine, engaging the packing buckle, and cutting the packing strap.

[0086] This embodiment also discloses an automatic strapping machine, including a frame 700 and a strapping tape feeder 600 mounted on the frame 700, a strapping buckle locking device of Embodiment 1, a tape feeding device 400, and a tape receiving device 500. The locking device is located between the strapping tape feeder and the tape feeding device 400, and the tape receiving device 500 is located between the strapping tape feeder and the locking device. The strapping tape feeder 600 is used to release or retract the strapping tape. The locking device is used to drive the strapping tape forward or backward. When the strapping tape is backward, the strapping tape feeder 600 will roll up the excess strapping tape. The backward process is a process of tightening the space enclosed by the strapping tape. The locking device of the strapping buckle is used to engage the strapping buckle with double-layer strapping tape. After the strapping buckle is engaged, the excess strapping tape is cut off by the cutting blade 103. The feeding mechanism 300 on the locking device of the packing buckle is used to push the packing buckle to be used to the ready position, which allows the tensioning mechanism 101 to easily pass the end of the packing strap through the packing buckle in the ready position.

[0087] The feeding device 400 is used to insert the strapping tape that has passed through the strapping buckle into the strapping channel; the receiving device 500 is used to pull the strapping tape out from the discharge end of the strapping channel and to insert the end of the strapping tape back into the strapping buckle at the waiting position.

[0088] The entire process of automatic strapping is as follows: the strapping tape dispenser 600 dispenses the strapping tape. Under the forward feeding of the tensioning mechanism 101 of the locking device, the strapping tape passes through the strapping buckle released by the feeding mechanism 300 and continues to be fed forward into the feeding device 400. The feeding device 400 drives the strapping tape to be inserted into the tape passage. The traction component and tensioning mechanism 101 continue to feed the tape until it extends out from the discharge end of the tape passage. The strapping tape then enters the receiving device 500, where it is pulled by the receiving device 500. The receiving device 500 then pulls the strapping tape... The strapping is guided close to the locking device until the end of the strapping extending from the strapping receiving device 500 is inserted into the ready-to-use strapping buckle on the feeding mechanism 300, completing the wrapping of the strapping. Then, the rotating plate on the feeding mechanism 300 bends one end of the strapping that passes through the strapping buckle to the outside of the strapping buckle, thus securing the strapping to the strapping buckle. Next, the tensioning mechanism 101 drives the strapping to retract to tighten the wrapping space until the strapping is taut. Finally, the biting mechanism 102 bites the strapping buckle, and the cutting blade 103 cuts off the excess part of the strapping, completing the fully automatic packaging of the strapping and the strapping buckle.

[0089] 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. A locking device for a packing buckle, characterized in that: It includes a locking machine, which includes a tensioning mechanism, a biting mechanism, and a cutting blade, as well as a lift and a monitor. Both the locking machine and the monitor are installed at the output end of the lift. The monitor is used to stop the lift when the distance between the locking machine and the material to be packaged reaches a set value. It also includes a storage rack and a packing buckle pushing assembly. The storage rack is fixedly installed, and a material box is detachably connected to the storage rack via a horizontal quick clamp. The horizontal quick clamp is fixed to the storage rack, and a U-shaped storage space is provided on the storage rack. The horizontal quick clamp can hold the material box tightly within the storage space of the storage rack. The material box includes four uprights, which are connected at their ends by a connecting structure. The four uprights form a vertical 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 pusher block. The pusher is used to drive the pusher block to move, and the pusher block is used to push the packing buckle that falls from the material drop hole to the set position. The push block has a supporting surface and a pushing surface. The supporting surface is located below the material drop hole. The distance between the supporting surface and the material drop hole is greater than the height of one packing buckle and less than the height of two packing buckles. The pushing surface is located on one side of the supporting surface and is used to push the packing buckle that falls on the supporting surface.

2. The locking device for a packing buckle according to claim 1, characterized in that: The monitor includes a sensor and a trigger. The sensor is fixed to the output end of the elevator, and the trigger is mounted on a trigger rod. The trigger rod is slidably connected to the output end of the elevator. A contact block is connected to the end of the trigger rod away from the trigger. The contact block can be pushed by the material to be packaged, and the end of the contact block close to the material to be packaged can be located on the outside of the locking machine.

3. The locking device for a packing buckle according to claim 1, characterized in that: The biting mechanism includes a biting driver, a bracket, and a biting assembly. The biting driver is fixed to the output end of the lifter, and the bracket is slidably connected to the output end of the lifter. The sliding direction of the bracket is parallel to the lifting direction, and an elastic element is connected between the bracket and the output end of the biting driver. The biting assembly is installed on the bracket. After the biting driver is activated, it can drive the biting arm of the biting assembly to achieve biting of the packing buckle.

4. The locking device for a packing buckle according to claim 1, 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 packing buckle, and the bending driver is used to drive the bending plate to rotate.

5. The locking device for a packing buckle according to claim 4, characterized in that: The bending assembly is mounted on a forward / backward drive, which is used to move the bending plate away from the packing strap.

6. The locking device for a packing buckle according to claim 5, characterized in that: The bending plate is eccentrically positioned relative to the output shaft center of the bending driver.

7. A locking device for a packing buckle according to any one of claims 1-6, characterized in that: It also includes a limiting member fixed on the storage rack. The limiting member is located above the push block, and 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.

8. The locking device for a packing buckle according to claim 7, characterized in that: A lower guide is fixedly connected to the push block, and an upper guide is fixed to the limiting member. The lower guide has an L-shaped cross-section, and the upper guide has an inverted L-shaped cross-section. The lower guide and the upper guide form a flared opening, which is used for guiding the buckle when the packaging strap is threaded.

Images