A mobile positioning strapping machine

Abstract

The application discloses a movable and positionable bundling machine, which comprises a movable bundling machine head, a positioning device and a brick bundle stack square carrier provided with a plurality of bottom tape channels; the bundling machine head comprises a bundling machine seat, a bundling machine core and a pair of side tape channels capable of swinging and closing oppositely; the positioning device is used for hanging and driving the bundling machine head to move, so that the bottoms of the two side tape channels are aligned with the two ends of one of the plurality of bottom tape channels on the carrier; when the two side tape channels are closed oppositely, a closed tape passing channel is formed with the bottom tape channel, so that the bundling machine core can be used for winding and bundling the tape around the brick bundle stack square on the carrier and completing the bundling operation; the bundling machine head is sequentially aligned with each bottom tape channel on the carrier, and the two side tape channels are closed oppositely to form a tape passing channel, so that the multiple bundling operations on the brick bundle stack square are realized; the problems of high equipment cost, insufficient bundling firmness, poor specification adaptability and the like in the prior art are solved, and the bundling machine has the advantages of simplicity, directness, reliability, flexibility and the like.

Description

Technical Field

[0001] This invention relates to the technical field of bundling and packaging equipment, and more particularly to a movable and positioning bundling machine for bundling stacks of bricks. Background Technology

[0002] In the large-scale production process of building materials such as tiles and bricks, the stacking of brick bags and the securing of the stacked brick bags on pallets (hereinafter referred to as bundling) are essential procedures for subsequent warehousing and transportation. The core requirement of bundling is to implement "multi-dimensional and multi-position firm bundling and securing" of the brick bag stacks and their pallets according to the specifications and stacking method of the brick bags, so as to prevent loosening and collapse accidents during warehousing and transportation.

[0003] The current mainstream method of strapping operations in the industry is to carry them out manually with manual tools. With the continuous increase in labor costs, the industry urgently needs automated strapping equipment that can replace manual operations.

[0004] Multi-dimensional bundling operations refer to the three-dimensional binding and fixing of brick stacks in both horizontal and vertical directions: horizontal binding aims to tightly gather brick stacks within the same layer, while vertical binding aims to securely fix each layer of brick stacks to the pallet. Binding in these two directions typically requires two different sets of specialized automated equipment. Existing automated solutions specifically for horizontal binding usually consist of a horizontal binding station constructed from a liftable horizontal binding machine and a heavy-duty conveyor line. The heavy-duty conveyor line delivers the brick stacks and pallets to be bound below the horizontal binding machine, which then descends sequentially to perform the horizontal binding operation at different heights on the brick stacks. The biggest drawback of this solution is the need for a costly heavy-duty conveyor line, and the requirement for a support device along the conveyor line to prevent the brick stacks from collapsing. In addition, in order to ensure that the bundled bricks are tightly packed together, especially the lower layer of bricks, a huge tension force needs to be applied to the strapping to overcome the moving friction caused by the weight of the bricks themselves. This requires high tensile strength of the strapping, and there is also a risk that the strapping may damage the edges and corners of the tiles.

[0005] In view of the shortcomings of the above-mentioned technical solutions, this invention focuses on making full use of the most common existing brick pack stacking process: First, brick packs are stacked in a predetermined manner on multiple brick storage racks (one brick pack per layer); then, a flipping device is used to flip all the stacked brick packs along with the brick storage racks by 90 degrees, transferring the brick packs onto a pre-prepared pallet. A binding process is inserted before the brick packs are stacked on each brick storage rack and flipped onto the pallet, and then the flipping operation is performed, thereby achieving the same operational effect as the aforementioned existing horizontal binding technology. The advantages of this technical solution are as follows: First, the brick bundles are tightly stacked together due to gravity before being overturned. Therefore, no additional tension is required on the strapping tape to gather the brick bundles vertically during binding; only a horizontal gathering force is needed. This allows for a reliable binding and gathering effect with relatively small strapping tension. Second, it is particularly suitable for large brick bundles that are not thick enough to stand stably on their own, eliminating the risk of collapse after overturning or requiring specialized mechanisms to prevent collapse. Third, it achieves the same operational results as existing technical solutions with minimal operating space. In summary, this invention fully utilizes the characteristics of existing brick bale stacking processes. By embedding the bundling operation into the brick bale stacking operation, and through an innovative bundling process and a matching movable positioning bundling machine design, it solves the reliance on heavy-duty conveyor lines and support devices in existing horizontal bundling solutions. This reduces the requirements for the tension of the bundling straps and the risk of damage to the edges and corners of the brick bales. At the same time, it can meet the adaptability to different specifications of brick bales and stacking methods, improving the economy and reliability of brick bale stacking and bundling operations. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a movable and positioning strapping machine to realize economical and reliable strapping operations for brick stacks of different specifications and stacking methods.

[0007] To achieve the above objectives, the present invention provides a movable and positioning strapping machine, comprising a strapping head, a positioning device for mounting and driving the strapping head to move and position, and a brick-pack stack carrying frame pre-installed with multiple bottom guides; the strapping head includes a strapping core and a pair of side guides located on both sides of the strapping core and capable of swinging open and closing relative to each other; the positioning device drives the strapping head to move, aligning the bottom ends of the side guides with the two ends of one of the multiple bottom guides pre-installed on the carrying frame, so that when the side guides close together, they can form a closed strapping channel with the bottom guide; the strapping core unwinds the strapping tape through the strapping channel and completes the strapping operation; by moving the strapping head to sequentially align each bottom guide on the carrying frame and closing the side guides together to form a strapping channel, multiple strapping operations on the brick-pack stack are achieved.

[0008] Furthermore, the positioning device includes a frame, a cantilever beam horizontally slidably connected to the frame, a longitudinal drive unit installed at the far end of the cantilever beam and connected to the strapping head to drive its lifting and lowering, and a feed drive unit installed on the frame for driving the horizontal extension and retraction of the cantilever beam.

[0009] Furthermore, the frame includes a base with horizontal guide rails, a trolley that can move and lock its position on the horizontal guide rails of the base, and a lifting column that can be lifted and slidably connected to the trolley; the feed drive unit is installed and fixed on the top of the lifting column, and the cantilever beam is horizontally slidably connected to the top of the lifting column.

[0010] Furthermore, the strapping head also includes a strapping base installed on the drive end of the longitudinal drive unit, and the strapping core is installed and fixed on the strapping base; the two side belts are respectively pivotally connected to the two ends of the strapping base, and each of the two side belts is equipped with an opening and closing drive unit to drive its swing.

[0011] Furthermore, the bottom ends of the two side channels and the two ends of the bottom channel are provided with matching guide and positioning structures to guide the bottom of the two side channels to accurately align with the two ends of the bottom channel when they are closed together.

[0012] Furthermore, the guiding and positioning structure includes two parts: a guide roller and a positioning pin, wherein, -Guide rollers: including guide rollers and guide bars that roll into each other; - Positioning pins: including positioning pin shafts and positioning pin holes that interlock with each other.

[0013] Furthermore, it also includes a set of guide belt pulleys distributed and installed on the cantilever beam of the positioning device and a conveyor belt traction device installed and fixed near the cantilever beam; the strapping tape from the outside is first pulled in by the conveyor belt traction device, then conveyed by the guide belt pulley system, and finally supplied to the strapping machine core at a set position and angle.

[0014] The present invention adopts the above-mentioned solution, and its beneficial effects are as follows: 1) Strong adaptability to specifications and high switching efficiency: The positioning device adopts a two-dimensional displacement positioning structure of "the moving trolley adapts to the positioning of the brick stack in the horizontal direction + the lifting column adapts to the positioning of the brick stack in the vertical direction + the horizontal binding position positioning of the feed drive unit", which can flexibly switch to adapt to different specifications of brick stacks and binding position requirements; 2) High belt track docking accuracy and stable and reliable unwinding of the binding tape: The docking accuracy and reliability of the belt track are improved by the guiding and positioning structure, ensuring smooth belt threading; 3) Compact layout achieves small footprint: The side belt track adopts a swing opening and closing structure pivotally connected to both ends of the binding machine base, which is simple in structure and reduces the space occupied.

[0015] In summary, the present invention, by adopting the above-mentioned solution, effectively solves the problems in the field of automated stacking and bundling of ceramic brick packages, which are caused by the existing technology of using a fixed bundling machine / station to transport the bundled material in and out to complete the automated bundling operation. These problems include complex material conveying systems, high equipment costs, insufficient bundling strength, and poor adaptability to brick package specifications. The present invention provides a simpler, more direct, more reliable, and more flexible process to meet the needs of automated bundling operations for stacking ceramic brick packages. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the strapping machine structure for an embodiment.

[0017] Figure 2 This is a schematic diagram of the strapping machine structure for an embodiment.

[0018] Figure 3 This is a schematic diagram of the side and bottom guideways of the strapping machine being joined together, as shown in the embodiment.

[0019] Figure 4 This is a schematic diagram of the strapping head for an embodiment.

[0020] Figure 5 for Figure 4 A magnified view of part A in the image.

[0021] Figure 6 for Figure 4 A magnified view of part B in the image.

[0022] Figure 7 This is a schematic diagram of the bottom channel structure in an embodiment.

[0023] Figure 8 This is a schematic diagram of the bottom channel structure in an embodiment.

[0024] Figure 9 This is a schematic diagram of the structure in which the side and bottom guideways of an embodiment are joined together to form a threading channel.

[0025] Figure 10 The following is a block diagram illustrating the principle of the strapping machine as an example.

[0026] Among them, 1-Bundling machine head, 11-Bundling machine core, 12-Side belt guide, 121-Opening and closing drive unit, 13-Positioning device, 131-Frame, 1311-Base, 1312-Mobile trolley, 1313-Lifting column, 1314-Column drive unit, 132-Cantilever beam, 133-Longitudinal drive unit, 134-Feed drive unit, 14-Belt supply device, 141-Belt traction device, 142-Guide belt pulley system, 2-Brick stacking square frame, 21-Bottom belt guide, 3-Bundling machine base, 41-Positioning pin hole, 42-Positioning pin shaft, 43-Guide roller, 44-Guide stop bar. Detailed Implementation

[0027] To more fully illustrate the present invention, a detailed description will be provided below in conjunction with the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, it is worth noting that the present invention is not limited to these specific forms and can be implemented in various ways. These embodiments are provided to enable the reader to gain a deeper understanding of the present invention.

[0028] See appendix Figure 1-10 As shown in this embodiment, a movable and positioning strapping machine includes a strapping head 1, a positioning device 13, a brick stack support frame 2, and at least two bottom guides 21 independently installed on the support surface of the brick stack support frame 2. The brick stack support frame 2 serves as a load-bearing foundation, and its support surface is used to carry the brick stack. Multiple bottom guides 21 can be provided on the support surface. The bottom guides 21 provide bottom guide paths for the strapping straps. The number (e.g., 2-4) and position of the bottom guides 21 can be flexibly set according to the size and specifications of the brick stack. The strapping head 1 is used to guide, unwind, tighten, and heat seal the strapping tape. Specifically, it includes a strapping core 11 and a pair of side guides 12. The strapping core 11 has a built-in strapping tape unwinding mechanism, tightening mechanism, and heat sealing mechanism. It is widely used in the strapping operations of building materials, logistics, food, industrial manufacturing, and other industries. Its core function is a closed-loop operation of "strapping tape conveying → wrapping the goods into a loop → tightening the tape body → joint connection → cutting off excess tape". Its structural principle is well known to those skilled in the art and will not be elaborated here. Those skilled in the art can select a suitable strapping core 11 as needed.

[0029] In this embodiment, see Figure 4 As shown, a pair of side guides 12 are located on both sides of the strapping mechanism 11 and can swing open and close relative to each other. The side guides 12 provide lateral guide paths for the strapping tape and can cooperate with the bottom guide 21 to form a closed path (corresponding to a closed strapping channel). Figure 9 As shown, when the bundling operation begins, the positioning device 13 of this embodiment first drives the bundling head 1 (i.e., the bundling core 11 and the two side guides 12) to move, so that the bottom ends of the two side guides 12 are aligned with the two ends of one of the multiple bottom guides 21 pre-installed on the carrier 2. Then, the two side guides 12 close together, and their ends match the two ends of the bottom guides 21, forming a closed threading channel. During this process, the bundling head 1 is driven by the longitudinal drive unit 133 to maintain a raised state. Then, the bundling tape is unwound along the closed threading channel through the bundling core 11. After the bundling tape head goes around the brick stack once, it returns to the bundling core 11 and is pressed down. Subsequently, the longitudinal drive unit 133 lowers the strapping head 1 so that the strapping core 11 is attached to the brick stack. At the same time, the strapping core 11 retracts the excess strapping tape and tightens and heat-seals the strapping tape after it is attached to the brick stack, thus completing one strapping operation on the brick stack.

[0030] To prevent misalignment between the side guides 12 and the ends of the bottom guide 21 when they close, which could lead to failure of the strapping unwinding, the bottom ends of both side guides 12 and the ends of the bottom guide 21 in this embodiment are provided with matching guide and positioning structures to guide the bottom of the side guides 12 to accurately align with the ends of the bottom guide 21 when they close together. Specifically, see... Figure 5-8 As shown, the guiding and positioning structure consists of two parts: guide rollers and positioning pins. The positioning pins include a positioning pin shaft 41 and a positioning pin hole 42 that interlock. The positions of the positioning pin hole 42 and the positioning pin shaft 41 can be set at the ends of the side guide 12 or the bottom guide 21 according to actual structural requirements. For ease of explanation, in this embodiment, the inner surface of the lower end of the side guide 12 is provided with a positioning pin shaft 41, and the end of the bottom guide 21 is provided with a positioning pin hole 42. Thus, when the side guide 12 is closed, the positioning pin shaft 41 inserts into the positioning pin hole 42, achieving precise positioning. The guide rollers include guide rollers that roll in contact with each other. The guide roller 43 and guide bar 44 are positioned at the ends of the side guide 12 or the bottom guide 21 according to actual structural requirements. For ease of explanation, in this embodiment, the guide roller 43 is located at one end of the bottom guide 21 and the corresponding lower end of the side guide 12, and the guide bar 44 is located at the other end of the bottom guide 21 and the lower end of another corresponding side guide 12. Thus, by utilizing the rolling contact between the guide bar 44 and the guide roller 43, the frictional resistance during the closing process is reduced, and the positioning pin 41 can be smoothly inserted into the positioning pin hole 42, ensuring successful positioning of the two.

[0031] See Figure 1-3 As shown, in this embodiment, the positioning device 13 includes a frame 131, a cantilever beam 132 horizontally slidably connected to the frame 131, a longitudinal drive unit 133 installed at the far end of the cantilever beam 132 and connected to the strapping head 1 to drive its lifting and lowering, and a feed drive unit 134 installed on the frame 131 to drive the cantilever beam 132 to extend and lower horizontally (the horizontal movement direction here is the transverse direction perpendicular to the length of the bottom guide 21). Specifically, the feed drive unit 134 drives the cantilever beam 132 to extend and lower horizontally, driving the longitudinal drive unit 133, the strapping core 11 and the two side guides 12 to feed horizontally synchronously, so that the side guides 12 move to a designated position and align with the two ends of the bottom guide 21; the longitudinal drive unit 133 drives the strapping head 1 to lift and lower, which can ensure that the strapping head 1 does not touch the brick stack when moving horizontally, and can also ensure that the strapping core 11 is attached to the top surface of the brick stack when tightening and heat-sealing the strapping tape.

[0032] In this embodiment, the frame 131 adopts an adjustable structure in both horizontal and vertical directions to adapt to brick stacks of different sizes and specifications. Its specific composition is as follows: Base 1311: Equipped with horizontal guide rails, serving as the fixed base for mounting the frame 131 on the ground; Mobile trolley 1312: It is connected to the horizontal guide rail on the top surface of the base 1311 by means of pulleys, and can be moved and locked in position (the mobile trolley 1312 can be adjusted manually or electrically, and when it is manually slidable, it can be locked by means of fastening such as bolts. Those skilled in the art can choose a suitable driving method as needed, and no specific limitation is made here). Lifting column 1313: It is slidably connected to the mobile trolley 1312 and is equipped with a column drive unit 1314 that drives it to rise and fall vertically (the column drive unit 1314 is fixed on the mobile trolley 1312, and the drive method can be electric or hydraulic or other drive components, which are not specifically limited here).

[0033] Thus, the trolley 1312 achieves adjustable specifications in the horizontal direction, and the lifting column 1313 achieves adjustable specifications in the vertical direction. Together, they enable the bundling machine to adapt to various brick stack sizes. In this embodiment, the feed drive unit 134 is mounted on the top of the lifting column 1313 to drive the cantilever beam 132 to extend and retract horizontally to meet the needs of bundling brick stacks at designated positions. The feed drive unit 134 in this embodiment employs a "motor-gear-rack" transmission mechanism: the rack is fixed to the bottom surface of the cantilever beam 132, the reduction motor is fixed to the top of the lifting column 1313, and the gear is sleeved on the output shaft of the reduction motor and meshes with the rack for transmission. Other derivative transmission methods can also be used by those skilled in the art, and no specific limitations are made here.

[0034] Alternatively, the mobile trolley 1312 and its guide rails can be eliminated, and the horizontal adjustment function of the mobile trolley 1312 can be integrated into the horizontal positioning function of the cantilever beam 132. That is, a cantilever beam 132 with a larger stroke can be used, so that its stroke range can cover all sizes of brick stacks and meet the binding and positioning requirements of various brick stacks. This can further simplify the structure of the frame 131, but it also requires more working space; those skilled in the art can implement this alternatively.

[0035] In this embodiment, to improve structural stability and ease of adjustment, see [reference needed]. Figure 4As shown, the strapping head 1 also includes a strapping base 3 (as a load-bearing foundation) installed at the drive end of the longitudinal drive unit 133. The strapping core 11 is installed and fixed on the strapping base 3; the two side conveyors 12 are respectively pivotally connected to the two ends of the strapping base 3 and can swing around the pivot axis; each side conveyor 12 is equipped with an opening and closing drive unit 121 (which can be a pneumatic or electric drive element, etc., and is not specifically limited here) to drive its fixed axis swing. Under the drive of the opening and closing drive unit 121, the two side conveyors 12 realize the function switching of "opening when moving and positioning and before the strapping core 11 descends to avoid the brick stack square carrier 2 - closing before the strapping tape is unwound to form a closed strapping channel".

[0036] Furthermore, the longitudinal drive unit 133 is installed at the far end of the cantilever beam 132, with its main body fixed to the front end of the cantilever beam 132 and its telescopic end connected to the top of the strapping machine base 3. As the telescopic end of the longitudinal drive unit 133 moves vertically, it drives the strapping machine base 3, the strapping core 11, and the side conveyors 12 to rise and fall synchronously. In this embodiment, the longitudinal drive unit 133 can be selected using a cylinder telescopic drive method. Those skilled in the art can select other drive methods as needed, and no specific limitations are made here.

[0037] In this embodiment, a feeding device 14 for supplying strapping tape to the strapping machine core 11 is also included. This includes a guide belt wheel system 142 distributed and installed on the cantilever beam 132 of the positioning device 13, and a conveyor traction device 141 fixed to the proximal end of the cantilever beam 132. The strapping tape 143 from the outside is first pulled in by the conveyor traction device 141, then conveyed by the guide belt wheel system 142, and finally supplied to the strapping machine core 11 at a set position and angle. Specifically: the conveyor traction device 141 in this embodiment includes a pair of mating clamping wheels, one of which is connected to a motor; the strapping tape passes through the gap between the two clamping wheels, and the input traction of the strapping tape is completed by the clamping force of the two clamping wheels; the guide belt wheel system 142 includes multiple guide belt discs fixedly installed on the cantilever beam 132, and the strapping tape sequentially passes through each guide belt disc, finally entering the strapping machine core 11 at a set position and angle.

[0038] To facilitate understanding of the structural principle of the strapping machine described above, the following will be combined with... Figure 10 The principle block diagram and specific working process shown are further explained.

[0039] Preparation for operation: First, confirm that the longitudinal drive unit 133 has fully raised the strapping head 1; second, replace the side guides 12 of appropriate length according to the height of the brick stack and start the column drive unit 1314 to adjust the height of the lifting column 1313 so that the bottom of the side guides 12 can be aligned with the two ends of the bottom guide 21 when they are closed; then, move and lock the position of the moving trolley 1312 on the horizontal guide rail of the base 1311 according to the length of the brick stack so that the horizontal extension range of the strapping head 1 can cover the preset binding positions of all the strapping straps on the brick stack.

[0040] Palletizing operation: First, start the feed drive unit 134 to drive the cantilever beam 132 and the strapping head 1 to retract horizontally until the strapping head 1 can completely avoid the working space required for palletizing; then start the palletizing operation until the required brick stack is stacked on the brick stacking frame 2.

[0041] Positioning and threading: First, start the feed drive unit 134 to drive the cantilever beam 132 and the binding head 1 to extend horizontally to above one of the multiple bottom guideways 21 located at the bottom of the brick stack, and ensure that the two side guideways 12 are horizontally aligned with the bottom guideway 21; then start the opening and closing drive unit 121 to drive the two side guideways 12 to close towards each other and match the bottom guideway 21 to form a closed threading channel (during the closing process of the two side guideways 12, the guide strips 44 at the bottom end of the two side guideways 12 roll into contact with the guide rollers 43 at both ends of the bottom guideway 21, guiding the positioning pin shaft 41 to be smoothly inserted into the positioning pin hole 42, realizing the precise docking of the two side guideways 12 and the bottom guideway 21, and ensuring the smooth threading channel); then the binding core 11 unwinds the binding tape along the closed threading channel until the tape head returns to the binding core 11 after circling the brick stack once and is pressed down, completing the threading operation.

[0042] Heat sealing with strapping: First, the opening and closing drive unit 121 is activated to open the two side belts 12, disengaging them from the bottom belt 21; then, the longitudinal drive unit 133 is activated to lower the strapping head 1, so that the strapping core 11 is attached to the top surface of the brick stack; at the same time, the strapping core 11 and the conveyor belt traction device 141 begin to retract the excess strapping until sufficient tension is applied to the strapping to ensure a secure and reliable binding; finally, the strapping core 11 performs heat sealing and strap breaking operations on the strapping to complete one single-strap binding operation on the brick stack.

[0043] Restarting the longitudinal drive unit 133 raises the strapping head 1 and repeats the above "positioning and strapping" and "stripping heat sealing" operations. This allows for the sequential implementation of multiple strapping operations on the same brick stack until the required strapping requirements are met.

[0044] In summary, this embodiment organically combines the bundling operation of brick bundles with the stacking operation of brick bundles, achieving the same or even better technical effects as other existing technical solutions with a simpler operation method and less space required.

[0045] In this embodiment, the brick stacking support 2 can adopt the stacking structure design described in the prior art (such as CN2022112355964), or other structures. No specific restrictions are made here. Those skilled in the art can select the appropriate brick stacking support 2 according to actual needs. It is only necessary to set the required number of bottom guides 21 on the supporting surface of the brick stacking support 2.

[0046] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any modifications or variations made by those skilled in the art, without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Therefore, all equivalent changes made based on the concept of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A movable and positioning strapping machine, characterized in that: The strapping machine includes a strapping head (1), a positioning device (13) for mounting and driving the strapping head (1) to move and position, and a brick stack carrier (2) for carrying brick stacks and pre-installed with multiple bottom guides (21); the strapping head (1) includes a strapping core (11) and a pair of side guides (12) located on both sides of the strapping core (11) and capable of swinging open and closing relative to each other; the positioning device (13) drives the strapping head (1) to move, so that the bottom ends of the side guides (12) Align the two ends of one of the multiple bottom channels (21) pre-installed on the carrier (2) so that the two side channels (12) can form a closed threading channel with the bottom channel (21) when they close together; the binding machine core (11) unwinds the binding tape through the threading channel and completes the binding operation; by moving the binding machine head (1) to align each bottom channel (21) on the carrier (2) in sequence and close the two side channels (12) to form a threading channel, the multi-level binding operation of the brick stack is realized.

2. The movable positioning strapping machine according to claim 1, characterized in that: The positioning device (13) includes a frame (131), a cantilever beam (132) that is horizontally slidably connected to the frame (131), a longitudinal drive unit (133) that is installed at the far end of the cantilever beam (132) and connected to the strapping head (1) and drives it to rise and fall, and a feed drive unit (134) that is installed on the frame (131) and used to drive the horizontal extension and retraction of the cantilever beam (132).

3. The movable positioning strapping machine according to claim 2, characterized in that: The frame (131) includes a base (1311) with a horizontal guide rail, a trolley (1312) that can move and lock its position on the horizontal guide rail of the base (1311), and a lifting column (1313) that can be lifted and slidably connected to the trolley (1312); the feed drive unit (134) is installed and fixed on the top of the lifting column (1313), and the cantilever beam (132) is horizontally slidably connected to the top of the lifting column (1313).

4. A movable positioning strapping machine according to claim 2, characterized in that: The strapping head (1) also includes a strapping base (3) installed at the drive end of the longitudinal drive unit (133), and the strapping core (11) is installed and fixed on the strapping base (3); the two side channels (12) are respectively pivotally connected to the two ends of the strapping base (3) and the two side channels (12) are each equipped with an opening and closing drive unit (121) to drive its swing.

5. A movable positioning strapping machine according to claim 1, characterized in that: The bottom ends of the two side channels (12) and the two ends of the bottom channel (21) are provided with matching guide and positioning structures to guide the bottom of the two side channels (12) to accurately connect with the two ends of the bottom channel (21) when they close together.

6. A movable positioning strapping machine according to claim 5, characterized in that: The guiding and positioning structure includes two parts: a guide roller and a positioning pin. -Guide rollers: including guide rollers (43) and guide bars (44) that roll into each other. - Positioning pin: including positioning pin shaft (41) and positioning pin hole (42) that are interlocked.

7. A movable positioning strapping machine according to claim 2, characterized in that: It also includes a set of guide belt pulleys (142) distributed and installed on the cantilever beam (132) of the positioning device (13) and a conveyor belt traction device (141) installed and fixed near the cantilever beam (132); the strapping tape (143) from the outside is first pulled in by the conveyor belt traction device (141), then transmitted through the guide belt pulleys (142), and finally supplied to the strapping core (11) at a set position and angle.

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