Strapping device for packaging goods

Abstract

The present disclosure discloses a strapping device for packaging goods, belonging to the field of strapping devices and including a protective shell (1) composed of a first fixation plate (11) and a second fixation plate (12); a lower drag chain (4) and an upper drag chain (5) are movably installed inside the protective shell; a first motor (2) is installed inside the first fixation plate, and a first sprocket (21) is installed at the output end of the first motor; a second motor (3) is installed inside the first fixation plate on a side adjacent to the first motor. When the first motor (2) of the present disclosure drives the first sprocket (21) to rotate, the lower drag chain (4) is driven to perform extension motion; when the second motor (3) drives the second sprocket (31) to rotate, the upper drag chain (5) is driven to perform extension motion; two encoders are provided to respectively record the number of rotations of the first sprocket (21) and the second sprocket (31) at the output ends of the first motor and the second motor; the encoders feed signals back to the control module, and then the control module is used to control the extension motion of the upper drag chain and the lower drag chain as well as to set the length of extension.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of a strapping device, and particularly to a strapping device for packaging goods.BACKGROUND

[0002] Goods bundling machines, also known as strapping devices, are used in the transportation, movement, shipping, and warehousing of goods. The strapping devices assist in bundling and securing goods, offering safety, reliability, ease of operation, and improved work efficiency in the bundling process.

[0003] Currently, large-sized goods often require securing with strappings to prevent collapse of goods during movement or transportation on pallets. However, at present, most bundling operations are still performed manually, which not only increases the workload on operators but also results in low bundling efficiency. Therefore, there is a need for a strapping device, commonly referred to as a strapping machine.

[0004] However, the existing strapping device suffer from insufficient accuracy in controlling the extension length of the drag chain. Typically, operators visually estimate the required drag chain length before bundling the goods. This can result in either excessive or insufficient drag chain extension. An overly extended drag chain causes the strapping band to extend beyond the desired length, requiring manual adjustment, which is labor-intensive. On the other hand, if the drag chain is too short, the device must be manually restarted, leading to wasted time.SUMMARY

[0005] In view of the above, an objective of the present disclosure is to provide a strapping device for packaging goods, so as to solve the technical problem mentioned in the background art.

[0006] To achieve the above objective, the present disclosure provides the following technical solution: a strapping device for packaging goods, including a protective shell composed of a first fixation plate and a second fixation plate, a lower drag chain and an upper drag chain being movably installed inside the protective shell; the first fixation plate is internally installed with a first sprocket and is internally installed with a second sprocket on a side adjacent to the first sprocket; the first sprocket and the second sprocket are each provided with a drive assembly on one side; the second fixation plate is internally fixed with two encoders which are respectively connected to shaft cores of the first sprocket and the second sprocket; the upper drag chain is installed with a strap guide at an end thereof and is sleeved with a deflection assembly on an outer wall thereof, the deflection assembly including a sliding plate sleeved on the outer wall of the upper drag chain, the sliding plate being opened with a chute at a bottom thereof to enable the sliding plate to slide above the lower drag chain; the sliding plate is movably installed with a movable plate at an end thereof; the lower drag chain is installed with a positioning plate at an end thereof, the positioning plate being fixed with a limiting post at a top thereof; and the limiting post is opened with a notch at an end thereof.

[0007] By adopting the above technical solutions, when the first motor drives the first sprocket to rotate, the lower drag chain is driven to perform extension motion; when the second motor drives the second sprocket to rotate, the upper drag chain is driven to perform extension motion; two encoders are provided to respectively record the number of rotations of the first sprocket and the second sprocket at the output ends of the first motor and the second motor; the encoders feed signals back to the control module, and then the control module is used to control the extension motion of the upper drag chain and the lower drag chain as well as to set the length of extension; the end of the lower drag chain is provided with a positioning plate, which is provided with a limiting post; the end of the limiting post is provided with a notch; and the deflection assembly is limited in position by the limiting post, enabling the deflection assembly to reach the deflection point of the upper drag chain.

[0008] The present disclosure is further provided such that the strap guide is fixed with a triangular block on a side thereof, and is opened with a locking slot on a side of an outer wall of the strap guide.

[0009] By adopting the above technical solutions, the provision of the triangular block may limit the strap guide and prevent it from completely entering the interior of the guide sleeve during reset. As a result, under the action of the triangular block, the end of the strap guide is located outside the guide sleeve. The provided locking slot may cooperate with the contact rod, and when the strap guide pushes the contact rod, the direction of extension motion of the upper drag chain is changed.

[0010] The present disclosure is further provided such that the guide rod is provided at each of two ends thereof with a pulley.

[0011] By adopting the above technical solutions, the provided pulleys may reduce the frictional force between the guide rod and the triangular block as well as the fixation plate. When the triangular block actuates the pulley at one end of the guide rod, the pulley at the other end disengages from the top end of the fixation plate and slides along the outer wall of the fixation plate, thereby enabling the deflection assembly to reset.

[0012] The present disclosure is further provided such that the outer wall of the guide sleeve is opened with a through-hole on a side thereof, and the contact rod is sleeved with a spring at an outer wall thereof.

[0013] By adopting the above technical solutions, the opened through-hole may facilitate the movement of the contact rod inside it. The provided spring may apply pressure on the guide rod, causing the pulley at one end of the guide rod to press tightly against the fixation plate, thus preventing the guide rod from disengaging from the outer wall of the fixation plate.

[0014] The present disclosure is further provided such that the first fixation plate is installed with a control module on a side thereof, and is opened with a strap insertion hole on a side thereof.

[0015] By adopting the above technical solutions, the provided control module may facilitate the control of activation and deactivation the first motor and the second motor; the provided strap insertion hole may facilitate the entry of the strappings into the space between the upper drag chain and the lower drag chain inside the protective shell.

[0016] In conclusion, the present disclosure mainly has the following beneficial effects: In the present disclosure, by means of the first motor, the second motor, the encoders, the positioning plate and the limiting post, when the first motor drives the first sprocket to rotate, the lower drag chain is driven to perform extension motion; when the second motor drives the second sprocket to rotate, the upper drag chain is driven to perform extension motion; two encoders are provided to respectively record the number of rotations of the first sprocket and the second sprocket at the output ends of the first motor and the second motor; the encoders feed signals back to the control module, and then the control module is used to control the extension motion of the upper drag chain and the lower drag chain as well as to set the length of extension; the end of the lower drag chain is provided with a positioning plate, which is provided with a limiting post, the end of the limiting post is provided with a notch; and the deflection assembly is limited in position by the limiting post, enabling the deflection assembly to reach the deflection point of the upper drag chain.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a structural schematic diagram of the present disclosure; FIG. 2 is a front view of the present disclosure; FIG. 3 is a schematic diagram of the connection of an encoder of the present disclosure; FIG. 4 is a working schematic diagram of a deflection assembly of the present disclosure; FIG. 5 is a schematic diagram of the connection between a guide sleeve and a connecting block of the present disclosure; FIG. 6 is a structural schematic diagram of a bottom of a sliding plate of the present disclosure. List of reference numerals:

[0018] 1, Protective Shell; 11, First Fixation Plate; 12, Second Fixation Plate; 13, Control Module; 14, Strap Insertion Hole; 2, First Motor; 21, First Sprocket; 3, Second Motor; 31, Second Sprocket; 4, Lower Drag Chain; 5, Upper Drag Chain; 6, Deflection Assembly; 61, Sliding Plate; 62, Guide Sleeve; 63, Connecting Block; 64, Guide Rod; 65, Pulley; 66, Contact Rod; 67, Spring; 68, Fixation Plate; 69, Through-Hole; 610, Chute; 611, Movable Plate; 612, Connecting Rod; 7, Positioning Plate; 71, Limiting Post; 72, Notch; 8, Strap Guide; 81, Triangular Block; 82, Locking Slot; 9, Encoder. DETAILED DESCRIPTION

[0019] The technical solutions of the present disclosure will now be described clearly and completely in conjunction with reference to the accompanying drawings of the embodiments of the present disclosure. The embodiments described below with reference to the drawings are illustrative and are intended solely for the purpose of explaining the present disclosure, and should not be interpreted as limiting the present disclosure.

[0020] The embodiments of the present disclosure will be described according to the overall structure of the present disclosure.

[0021] A strapping device for packaging goods, as shown in FIGS. 1 to 6, includes a protective shell 1 composed of a first fixation plate 11 and a second fixation plate 12. A lower drag chain 4 and an upper drag chain 5 are movably installed inside the protective shell 1. The first fixation plate 11 is internally installed with a first sprocket 21, and is internally installed with a second sprocket 31 on a side adjacent to the first sprocket 21. On one side of each of the first sprocket 21 and the second sprocket 31 a drive assembly is provided. These drive assemblies include a first motor 2 and a second motor 3, where the output end of the first motor 2 is connected to the first sprocket 21, and the output end of the second motor 3 is connected to the second sprocket 31. The second fixation plate 12 is internally fixed with two encoders 9 which are respectively connected to shaft cores of the first sprocket 21 and the second sprocket 31. The upper drag chain 5 is installed with a strap guide 8 at an end thereof and is sleeved with a deflection assembly 6 on an outer wall thereof. The deflection assembly 6 includes a sliding plate 61 sleeved on the outer wall of the upper drag chain 5. The sliding plate 61 is opened with a chute 610 at a bottom thereof, such that when the upper drag chain 5 slides, the sliding plate 61 slides above the lower drag chain 4. The provision of the chute 610 enables the sliding plate 61 to slide above the lower drag chain 4, which may prevent the sliding plate 61 from separating from the lower drag chain 4. The sliding plate 61 is movably installed with a movable plate 611 at an end thereof, the lower drag chain 4 is installed with a positioning plate 7 at an end thereof, the positioning plate 7 is fixed with a limiting post 71 at a top thereof, and the limiting post 71 is opened with a notch 72 at an end thereof. The sliding plate 61 is movably installed with a connecting block 63 and a guide sleeve 62 at a top thereof, an outer wall of the guide sleeve 62 is movably connected to an end of the connecting block 63, the guide sleeve 62 is movably installed with a guide rod 64 on a side thereof, the guide rod 64 is fixed with a contact rod 66 on a side thereof, the top of the sliding plate 61 is fixed with a fixation plate 68 on a side thereof, and the top of the sliding plate 61 is movably installed with a connecting rod 612 on the other side thereof.

[0022] Please refer to FIGS. 4 and 6, the strap guide 8 is fixed with a triangular block 81 on a side thereof, and is opened with a locking slot 82 on a side of an outer wall of the strap guide 8. The provision of the triangular block 81 may limit the strap guide 8 and prevent it from completely entering the interior of the guide sleeve 62 during reset. As a result, under the action of the triangular block 81, the end of the strap guide 8 is located outside the guide sleeve 62. The provided locking slot 82 may cooperate with the contact rod 66, and when the strap guide 8 pushes the contact rod 66 through the locking slot 82, the direction of extension motion of the upper drag chain 5 is changed.

[0023] Please refer to FIGS. 5 and 6, the guide rod 64 is provided at each of two ends thereof with a pulley 65. The provided pulleys 65 may reduce the frictional force between the guide rod 64 and the triangular block 81 as well as the fixation plate 68. When the triangular block 81 actuates the pulley at one end of the guide rod 64, the pulley at the other end disengages from the top end of the fixation plate 68 and slides along the outer wall of the fixation plate 68, thereby enabling the deflection assembly 6 to reset.

[0024] Please refer to FIG. 5, the outer wall of the guide sleeve 62 is opened with a through-hole 69 on a side thereof, and the contact rod 66 is sleeved with a spring 67 on an outer wall thereof. The opened through-hole 69 may facilitate the movement of the contact rod 66 inside it. The provided spring 67 may apply pressure on the guide rod 64, causing the pulley at one end of the guide rod 64 to press tightly against the fixation plate 68, thus preventing the pulley at one end of the guide rod 64 from disengaging from the outer wall of the fixation plate 68.

[0025] Please refer to FIG. 2, the first fixation plate 11 is installed with a control module 13 on a side thereof, and is opened with a strap insertion hole 14 on a side thereof. The provided control module 13 may facilitate the control of activation and deactivation the first motor 2 and the second motor 3, and the provided strap insertion hole 14 may facilitate the entry of the strappings into the space between the upper drag chain and the lower drag chain inside the protective shell 1.

[0026] Please refer to FIGS. 1 and 4, a side of the limiting post 71 is opened with a notch 72. The provided notch 72 may limit the movable plate 611, thereby avoiding unstable contact between the movable plate 611 and the limiting post 71 when the movable plate 611 moves forward, which could otherwise lead to the movable plate 611 disengaging from the limitation of the limiting post 71.

[0027] The working principle of the present disclosure is as follows: During operation, the control module 13 is used to control the activation and deactivation of the first motor 2 and the second motor 3. The first motor 2 and the second motor 3 may be electromagnetic brake motors. When the motors stop operating, the upper drag chain 5 and the lower drag chain 4 also stop their extension motion; after the first motor 2 is activated, the power output end of the first motor 2 drives the first sprocket 21 to operate, the first sprocket 21 drives the lower drag chain 4 to slide, and during its sliding, the lower drag chain 4 drives the positioning plate 7 to perform extension movement together with it. The encoder 9 is used to feedback signals to the control module 13, and then the control module 13 is used to control the rotation of the first motor 2 and the second motor 3, thereby controlling the lower drag chain 4 and the upper drag chain 5 to set the extension length. Once the lower drag chain 4 reaches the preset extension length, the first motor 2 stops outputting power, and when the lower drag chain 4 slides, the second motor 3 is activated, the power output end of the second motor 3 drives the second sprocket 31 to operate, which in turn drives the upper drag chain 5 to perform extension motion. When the upper drag chain 5 drives the strap guide 8 to move, the strap guide 8 drives the deflection assembly 6 to slide along the outer wall of the lower drag chain 4. When the movable plate 611 comes into contact with the positioning plate 7, the limiting post 71 is used to limit the movable plate 611, preventing the deflection assembly 6 from moving further forward.

[0028] At this point, although the movable plate 611 is limited in position by the limiting post 71, the upper drag chain 5 continues to drive the strap guide 8 to move forward. The strap guide 8 pushes the contact rod 66 through the locking slot 82, causing the guide rod 64 to rotate, so that the guide sleeve 62 is turned by 90 degrees. At this point, the contact rod 66 slides out from the locking slot 82 such that the contact rod 66 is disengaged from the strap guide 8, and the strap guide 8 moves further forward, such that it pulls the strappings fixed thereon to extend outward along with it subsequently, the second motor 3 drives the second sprocket 31 to rotate in the reverse direction, thereby resetting the upper drag chain 5, and during the reset process, the upper drag chain 5 drives the strap guide 8 to move in a reciprocating manner. When the triangular block 81 on one side of the strap guide 8 comes into contact with the pulley 65 at one end of the guide rod 64, the guide rod 64 rotates. This rotation of the guide rod 64 drives the contact rod 66 to enter the locking slot 82, and the strap guide 8 drives the guide sleeve 62 to reset. Meanwhile, the upper drag chain 5 drives the sliding plate 61 to slide along the outer wall of the lower drag chain 4. Finally, the first motor 2 drives the lower drag chain 4 to move in a reciprocating manner for resetting.

[0029] Although embodiments of the present disclosure have been illustrated and described, these specific embodiments are merely illustrative of the present disclosure and are not intended to limit the present disclosure. Specific features, structures, materials, or characteristics described herein may be combined in a suitable manner in any one or more embodiments or examples. Those skilled in the art will appreciate upon reading this specification that various modifications, substitutions, and variations may be made to the embodiments as needed without departing from the spirit and teaching of the present disclosure and without requiring any creative effort. Any such modifications, substitutions, and variations that fall within the scope of the appended claims of the present disclosure are protected by patent law.

Examples

Embodiment Construction

[0019]The technical solutions of the present disclosure will now be described clearly and completely in conjunction with reference to the accompanying drawings of the embodiments of the present disclosure. The embodiments described below with reference to the drawings are illustrative and are intended solely for the purpose of explaining the present disclosure, and should not be interpreted as limiting the present disclosure.

[0020]The embodiments of the present disclosure will be described according to the overall structure of the present disclosure.

[0021]A strapping device for packaging goods, as shown in FIGS. 1 to 6, includes a protective shell 1 composed of a first fixation plate 11 and a second fixation plate 12. A lower drag chain 4 and an upper drag chain 5 are movably installed inside the protective shell 1. The first fixation plate 11 is internally installed with a first sprocket 21, and is internally installed with a second sprocket 31 on a side adjacent to the first sproc...

TECHNICAL FIELD

[0001] The present disclosure relates to the field of a strapping device, and particularly to a strapping device for packaging goods.BACKGROUND

[0002] Goods bundling machines, also known as strapping devices, are used in the transportation, movement, shipping, and warehousing of goods. The strapping devices assist in bundling and securing goods, offering safety, reliability, ease of operation, and improved work efficiency in the bundling process.

[0003] Currently, large-sized goods often require securing with strappings to prevent collapse of goods during movement or transportation on pallets. However, at present, most bundling operations are still performed manually, which not only increases the workload on operators but also results in low bundling efficiency. Therefore, there is a need for a strapping device, commonly referred to as a strapping machine.

[0004] However, the existing strapping device suffer from insufficient accuracy in controlling the extension length of the drag chain. Typically, operators visually estimate the required drag chain length before bundling the goods. This can result in either excessive or insufficient drag chain extension. An overly extended drag chain causes the strapping band to extend beyond the desired length, requiring manual adjustment, which is labor-intensive. On the other hand, if the drag chain is too short, the device must be manually restarted, leading to wasted time.SUMMARY

[0005] In view of the above, an objective of the present disclosure is to provide a strapping device for packaging goods, so as to solve the technical problem mentioned in the background art.

[0006] To achieve the above objective, the present disclosure provides the following technical solution: a strapping device for packaging goods, including a protective shell composed of a first fixation plate and a second fixation plate, a lower drag chain and an upper drag chain being movably installed inside the protective shell; the first fixation plate is internally installed with a first sprocket and is internally installed with a second sprocket on a side adjacent to the first sprocket; the first sprocket and the second sprocket are each provided with a drive assembly on one side; the second fixation plate is internally fixed with two encoders which are respectively connected to shaft cores of the first sprocket and the second sprocket; the upper drag chain is installed with a strap guide at an end thereof and is sleeved with a deflection assembly on an outer wall thereof, the deflection assembly including a sliding plate sleeved on the outer wall of the upper drag chain, the sliding plate being opened with a chute at a bottom thereof to enable the sliding plate to slide above the lower drag chain; the sliding plate is movably installed with a movable plate at an end thereof; the lower drag chain is installed with a positioning plate at an end thereof, the positioning plate being fixed with a limiting post at a top thereof; and the limiting post is opened with a notch at an end thereof.

[0007] By adopting the above technical solutions, when the first motor drives the first sprocket to rotate, the lower drag chain is driven to perform extension motion; when the second motor drives the second sprocket to rotate, the upper drag chain is driven to perform extension motion; two encoders are provided to respectively record the number of rotations of the first sprocket and the second sprocket at the output ends of the first motor and the second motor; the encoders feed signals back to the control module, and then the control module is used to control the extension motion of the upper drag chain and the lower drag chain as well as to set the length of extension; the end of the lower drag chain is provided with a positioning plate, which is provided with a limiting post; the end of the limiting post is provided with a notch; and the deflection assembly is limited in position by the limiting post, enabling the deflection assembly to reach the deflection point of the upper drag chain.

[0008] The present disclosure is further provided such that the strap guide is fixed with a triangular block on a side thereof, and is opened with a locking slot on a side of an outer wall of the strap guide.

[0009] By adopting the above technical solutions, the provision of the triangular block may limit the strap guide and prevent it from completely entering the interior of the guide sleeve during reset. As a result, under the action of the triangular block, the end of the strap guide is located outside the guide sleeve. The provided locking slot may cooperate with the contact rod, and when the strap guide pushes the contact rod, the direction of extension motion of the upper drag chain is changed.

[0010] The present disclosure is further provided such that the guide rod is provided at each of two ends thereof with a pulley.

[0011] By adopting the above technical solutions, the provided pulleys may reduce the frictional force between the guide rod and the triangular block as well as the fixation plate. When the triangular block actuates the pulley at one end of the guide rod, the pulley at the other end disengages from the top end of the fixation plate and slides along the outer wall of the fixation plate, thereby enabling the deflection assembly to reset.

[0012] The present disclosure is further provided such that the outer wall of the guide sleeve is opened with a through-hole on a side thereof, and the contact rod is sleeved with a spring at an outer wall thereof.

[0013] By adopting the above technical solutions, the opened through-hole may facilitate the movement of the contact rod inside it. The provided spring may apply pressure on the guide rod, causing the pulley at one end of the guide rod to press tightly against the fixation plate, thus preventing the guide rod from disengaging from the outer wall of the fixation plate.

[0014] The present disclosure is further provided such that the first fixation plate is installed with a control module on a side thereof, and is opened with a strap insertion hole on a side thereof.

[0015] By adopting the above technical solutions, the provided control module may facilitate the control of activation and deactivation the first motor and the second motor; the provided strap insertion hole may facilitate the entry of the strappings into the space between the upper drag chain and the lower drag chain inside the protective shell.

[0016] In conclusion, the present disclosure mainly has the following beneficial effects: In the present disclosure, by means of the first motor, the second motor, the encoders, the positioning plate and the limiting post, when the first motor drives the first sprocket to rotate, the lower drag chain is driven to perform extension motion; when the second motor drives the second sprocket to rotate, the upper drag chain is driven to perform extension motion; two encoders are provided to respectively record the number of rotations of the first sprocket and the second sprocket at the output ends of the first motor and the second motor; the encoders feed signals back to the control module, and then the control module is used to control the extension motion of the upper drag chain and the lower drag chain as well as to set the length of extension; the end of the lower drag chain is provided with a positioning plate, which is provided with a limiting post, the end of the limiting post is provided with a notch; and the deflection assembly is limited in position by the limiting post, enabling the deflection assembly to reach the deflection point of the upper drag chain.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a structural schematic diagram of the present disclosure; FIG. 2 is a front view of the present disclosure; FIG. 3 is a schematic diagram of the connection of an encoder of the present disclosure; FIG. 4 is a working schematic diagram of a deflection assembly of the present disclosure; FIG. 5 is a schematic diagram of the connection between a guide sleeve and a connecting block of the present disclosure; FIG. 6 is a structural schematic diagram of a bottom of a sliding plate of the present disclosure. List of reference numerals:

[0018] 1, Protective Shell; 11, First Fixation Plate; 12, Second Fixation Plate; 13, Control Module; 14, Strap Insertion Hole; 2, First Motor; 21, First Sprocket; 3, Second Motor; 31, Second Sprocket; 4, Lower Drag Chain; 5, Upper Drag Chain; 6, Deflection Assembly; 61, Sliding Plate; 62, Guide Sleeve; 63, Connecting Block; 64, Guide Rod; 65, Pulley; 66, Contact Rod; 67, Spring; 68, Fixation Plate; 69, Through-Hole; 610, Chute; 611, Movable Plate; 612, Connecting Rod; 7, Positioning Plate; 71, Limiting Post; 72, Notch; 8, Strap Guide; 81, Triangular Block; 82, Locking Slot; 9, Encoder. DETAILED DESCRIPTION

[0019] The technical solutions of the present disclosure will now be described clearly and completely in conjunction with reference to the accompanying drawings of the embodiments of the present disclosure. The embodiments described below with reference to the drawings are illustrative and are intended solely for the purpose of explaining the present disclosure, and should not be interpreted as limiting the present disclosure.

[0020] The embodiments of the present disclosure will be described according to the overall structure of the present disclosure.

[0021] A strapping device for packaging goods, as shown in FIGS. 1 to 6, includes a protective shell 1 composed of a first fixation plate 11 and a second fixation plate 12. A lower drag chain 4 and an upper drag chain 5 are movably installed inside the protective shell 1. The first fixation plate 11 is internally installed with a first sprocket 21, and is internally installed with a second sprocket 31 on a side adjacent to the first sprocket 21. On one side of each of the first sprocket 21 and the second sprocket 31 a drive assembly is provided. These drive assemblies include a first motor 2 and a second motor 3, where the output end of the first motor 2 is connected to the first sprocket 21, and the output end of the second motor 3 is connected to the second sprocket 31. The second fixation plate 12 is internally fixed with two encoders 9 which are respectively connected to shaft cores of the first sprocket 21 and the second sprocket 31. The upper drag chain 5 is installed with a strap guide 8 at an end thereof and is sleeved with a deflection assembly 6 on an outer wall thereof. The deflection assembly 6 includes a sliding plate 61 sleeved on the outer wall of the upper drag chain 5. The sliding plate 61 is opened with a chute 610 at a bottom thereof, such that when the upper drag chain 5 slides, the sliding plate 61 slides above the lower drag chain 4. The provision of the chute 610 enables the sliding plate 61 to slide above the lower drag chain 4, which may prevent the sliding plate 61 from separating from the lower drag chain 4. The sliding plate 61 is movably installed with a movable plate 611 at an end thereof, the lower drag chain 4 is installed with a positioning plate 7 at an end thereof, the positioning plate 7 is fixed with a limiting post 71 at a top thereof, and the limiting post 71 is opened with a notch 72 at an end thereof. The sliding plate 61 is movably installed with a connecting block 63 and a guide sleeve 62 at a top thereof, an outer wall of the guide sleeve 62 is movably connected to an end of the connecting block 63, the guide sleeve 62 is movably installed with a guide rod 64 on a side thereof, the guide rod 64 is fixed with a contact rod 66 on a side thereof, the top of the sliding plate 61 is fixed with a fixation plate 68 on a side thereof, and the top of the sliding plate 61 is movably installed with a connecting rod 612 on the other side thereof.

[0022] Please refer to FIGS. 4 and 6, the strap guide 8 is fixed with a triangular block 81 on a side thereof, and is opened with a locking slot 82 on a side of an outer wall of the strap guide 8. The provision of the triangular block 81 may limit the strap guide 8 and prevent it from completely entering the interior of the guide sleeve 62 during reset. As a result, under the action of the triangular block 81, the end of the strap guide 8 is located outside the guide sleeve 62. The provided locking slot 82 may cooperate with the contact rod 66, and when the strap guide 8 pushes the contact rod 66 through the locking slot 82, the direction of extension motion of the upper drag chain 5 is changed.

[0023] Please refer to FIGS. 5 and 6, the guide rod 64 is provided at each of two ends thereof with a pulley 65. The provided pulleys 65 may reduce the frictional force between the guide rod 64 and the triangular block 81 as well as the fixation plate 68. When the triangular block 81 actuates the pulley at one end of the guide rod 64, the pulley at the other end disengages from the top end of the fixation plate 68 and slides along the outer wall of the fixation plate 68, thereby enabling the deflection assembly 6 to reset.

[0024] Please refer to FIG. 5, the outer wall of the guide sleeve 62 is opened with a through-hole 69 on a side thereof, and the contact rod 66 is sleeved with a spring 67 on an outer wall thereof. The opened through-hole 69 may facilitate the movement of the contact rod 66 inside it. The provided spring 67 may apply pressure on the guide rod 64, causing the pulley at one end of the guide rod 64 to press tightly against the fixation plate 68, thus preventing the pulley at one end of the guide rod 64 from disengaging from the outer wall of the fixation plate 68.

[0025] Please refer to FIG. 2, the first fixation plate 11 is installed with a control module 13 on a side thereof, and is opened with a strap insertion hole 14 on a side thereof. The provided control module 13 may facilitate the control of activation and deactivation the first motor 2 and the second motor 3, and the provided strap insertion hole 14 may facilitate the entry of the strappings into the space between the upper drag chain and the lower drag chain inside the protective shell 1.

[0026] Please refer to FIGS. 1 and 4, a side of the limiting post 71 is opened with a notch 72. The provided notch 72 may limit the movable plate 611, thereby avoiding unstable contact between the movable plate 611 and the limiting post 71 when the movable plate 611 moves forward, which could otherwise lead to the movable plate 611 disengaging from the limitation of the limiting post 71.

[0027] The working principle of the present disclosure is as follows: During operation, the control module 13 is used to control the activation and deactivation of the first motor 2 and the second motor 3. The first motor 2 and the second motor 3 may be electromagnetic brake motors. When the motors stop operating, the upper drag chain 5 and the lower drag chain 4 also stop their extension motion; after the first motor 2 is activated, the power output end of the first motor 2 drives the first sprocket 21 to operate, the first sprocket 21 drives the lower drag chain 4 to slide, and during its sliding, the lower drag chain 4 drives the positioning plate 7 to perform extension movement together with it. The encoder 9 is used to feedback signals to the control module 13, and then the control module 13 is used to control the rotation of the first motor 2 and the second motor 3, thereby controlling the lower drag chain 4 and the upper drag chain 5 to set the extension length. Once the lower drag chain 4 reaches the preset extension length, the first motor 2 stops outputting power, and when the lower drag chain 4 slides, the second motor 3 is activated, the power output end of the second motor 3 drives the second sprocket 31 to operate, which in turn drives the upper drag chain 5 to perform extension motion. When the upper drag chain 5 drives the strap guide 8 to move, the strap guide 8 drives the deflection assembly 6 to slide along the outer wall of the lower drag chain 4. When the movable plate 611 comes into contact with the positioning plate 7, the limiting post 71 is used to limit the movable plate 611, preventing the deflection assembly 6 from moving further forward.

[0028] At this point, although the movable plate 611 is limited in position by the limiting post 71, the upper drag chain 5 continues to drive the strap guide 8 to move forward. The strap guide 8 pushes the contact rod 66 through the locking slot 82, causing the guide rod 64 to rotate, so that the guide sleeve 62 is turned by 90 degrees. At this point, the contact rod 66 slides out from the locking slot 82 such that the contact rod 66 is disengaged from the strap guide 8, and the strap guide 8 moves further forward, such that it pulls the strappings fixed thereon to extend outward along with it subsequently, the second motor 3 drives the second sprocket 31 to rotate in the reverse direction, thereby resetting the upper drag chain 5, and during the reset process, the upper drag chain 5 drives the strap guide 8 to move in a reciprocating manner. When the triangular block 81 on one side of the strap guide 8 comes into contact with the pulley 65 at one end of the guide rod 64, the guide rod 64 rotates. This rotation of the guide rod 64 drives the contact rod 66 to enter the locking slot 82, and the strap guide 8 drives the guide sleeve 62 to reset. Meanwhile, the upper drag chain 5 drives the sliding plate 61 to slide along the outer wall of the lower drag chain 4. Finally, the first motor 2 drives the lower drag chain 4 to move in a reciprocating manner for resetting.

[0029] Although embodiments of the present disclosure have been illustrated and described, these specific embodiments are merely illustrative of the present disclosure and are not intended to limit the present disclosure. Specific features, structures, materials, or characteristics described herein may be combined in a suitable manner in any one or more embodiments or examples. Those skilled in the art will appreciate upon reading this specification that various modifications, substitutions, and variations may be made to the embodiments as needed without departing from the spirit and teaching of the present disclosure and without requiring any creative effort. Any such modifications, substitutions, and variations that fall within the scope of the appended claims of the present disclosure are protected by patent law.

Examples

Embodiment Construction

[0019]The technical solutions of the present disclosure will now be described clearly and completely in conjunction with reference to the accompanying drawings of the embodiments of the present disclosure. The embodiments described below with reference to the drawings are illustrative and are intended solely for the purpose of explaining the present disclosure, and should not be interpreted as limiting the present disclosure.

[0020]The embodiments of the present disclosure will be described according to the overall structure of the present disclosure.

[0021]A strapping device for packaging goods, as shown in FIGS. 1 to 6, includes a protective shell 1 composed of a first fixation plate 11 and a second fixation plate 12. A lower drag chain 4 and an upper drag chain 5 are movably installed inside the protective shell 1. The first fixation plate 11 is internally installed with a first sprocket 21, and is internally installed with a second sprocket 31 on a side adjacent to the first sproc...

Claims

1. A strapping device for packaging goods, comprising a protective shell (1) composed of a first fixation plate (11) and a second fixation plate (12), a lower drag chain (4) and an upper drag chain (5) being movably installed inside the protective shell (1), characterized in that: the first fixation plate (11) is internally installed with a first sprocket (21) and is internally installed with a second sprocket (31) on a side adjacent to the first sprocket (21); the first sprocket (21) and the second sprocket (31) are each provided with a drive assembly on one side; the second fixation plate (12) is internally fixed with two encoders (9), which are respectively connected to shaft cores of the first sprocket (21) and the second sprocket (31); the upper drag chain (5) is installed with a strap guide (8) at an end thereof and is sleeved with a deflection assembly (6) on an outer wall thereof, the deflection assembly (6) comprising a sliding plate (61) sleeved on the outer wall of the upper drag chain (5), the sliding plate (61) being opened with a chute (610) at a bottom thereof to enable the sliding plate (61) to slide above the lower drag chain (4); the sliding plate (61) is movably installed with a movable plate (611) at an end thereof; the lower drag chain (4) is installed with a positioning plate (7) at an end thereof, the positioning plate (7) being fixed with a limiting post (71) at a top thereof; and the limiting post (71) is opened with a notch (72) at an end thereof.

2. The strapping device for packaging goods according to claim 1, characterized in that: the sliding plate (61) is movably installed with a connecting block (63) and a guide sleeve (62) at a top thereof; an outer wall of the guide sleeve (62) is movably connected to an end of the connecting block (63); the guide sleeve (62) is movably installed with a guide rod (64) on a side thereof; the guide rod (64) is fixed with a contact rod (66) on a side thereof; the top of the sliding plate (61) is fixed with a fixation plate (68) on a side thereof; and the top of the sliding plate (61) is movably installed with a connecting rod (612) on the other side thereof.

3. The strapping device for packaging goods according to claim 1, characterized in that: the strap guide (8) is fixed with a triangular block (81) on a side thereof, and the strap guide (8) is opened with a locking slot (82) on a side of an outer wall thereof.

4. The strapping device for packaging goods according to claim 1, characterized in that: the guide rod (64) is provided at each of two ends thereof with a pulley (65).

5. The strapping device for packaging goods according to claim 2, characterized in that: the outer wall of the guide sleeve (62) is opened with a through-hole (69) on a side thereof; and the contact rod (66) is sleeved with a spring (67) on an outer wall thereof.

6. The strapping device for packaging goods according to claim 1, characterized in that: the first fixation plate (11) is installed with a control module (13) on a side thereof; and the first fixation plate (11) is opened with a strap insertion hole (14) on a side thereof.

Images