A clamping device for a strapping band

Abstract

This utility model discloses a clamping device for a zip tie, relating to the field of classified carrier handling devices. Before use, a guide pin is squeezed to open the clamping mechanism. A zip tie is then placed inside the clamping mechanism, and the guide pin is released, retracting out of the clamping mechanism under the elastic force of an elastic element. During use, the zip tie assembly drives the clamping device, causing the zip tie to wrap around the collection bag. The clamping device then releases the zip tie, and finally, the zip tie assembly tightens the zip tie around the collection bag. After zip tying, the collection bag cannot be opened without damaging the zip tie, greatly reducing the risk of losing classified documents. Furthermore, if the collection bag or zip tie is forcibly opened, it is easily visible and can be dealt with promptly, reducing the risk of leakage.

Description

Technical Field

[0001] This utility model belongs to the field of classified carrier processing devices, specifically relating to a clamping device for a strap. Background Technology

[0002] For media containing classified information, such as paper, hard drives, CDs, and USB flash drives, they must be destroyed before disposal to prevent leakage of classified information. There are two common destruction methods: one is for classified units to purchase multi-functional destruction machines to shred the classified media into irreparable fragments; the other method is to put the classified media into an automatic collection cabinet, and have designated personnel periodically remove the collection bags from the cabinet and hand them over to a destruction center for centralized destruction.

[0003] Currently, the collection bags on the market are generally square-bottomed, open canvas bags. When in use, they are hung in the collection cabinet, and the operator puts the confidential paper media in through the material feeding port of the cabinet, which then falls into the collection bag. After the collection bag is full, the collection cabinet is opened, and the bag is tied with hemp rope. After tying, it is loaded onto a vehicle and transported to the destruction center for destruction.

[0004] This method of collection, because the bag opening is tied with hemp rope, can be easily untied, which poses a safety hazard as the medium inside the collection bag may be lost or replaced during transportation. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, the present invention aims to provide a clamping device for a tie-down strap. A concurrent application describes a cabinet for seizing classified materials, and the present application shares the same technical content with that concurrent application. The present application claims protection for a clamping device used in a cabinet for seizing classified materials. The clamping device is used to hold a tie-down strap and drive the tie-down strap to wrap around the seizing bag. Finally, the sealing assembly of the cabinet for seizing classified materials drives the tie-down strap to tighten the seizing bag, thereby reducing the number of personnel who can come into contact with classified media and ensuring the safety of classified materials.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A clamping device for a zip tie is provided. The collection cabinet includes a housing, a collection bag, and a support frame. The support frame is disposed inside the housing, and the collection bag is disposed on the support frame. The housing has a delivery opening, and the collection bag is located below the delivery opening. Several swing arm assemblies are disposed at the top of the support frame. The swing arm assemblies are equipped with bag hanging assemblies and zip tying assemblies. The collection bag is suspended on the bag hanging assemblies. The swing arm assemblies are used to rotate and drive the bag hanging assemblies to move closer or further apart. A zip tie is disposed inside the zip tie assembly, and the zip tie assembly is used to drive the zip tie to wrap around and tighten the collection bag. A clamping device is disposed on the zip tie assembly, and the clamping device is used to clamp the zip tie. The clamping device is mounted in a housing, and the housing is equipped with a clamping mechanism guide pin and an elastic element. The elastic element is fitted on the guide pin, and the guide pin is used to control the opening and closing of the clamping mechanism.

[0008] Optionally, the clamping mechanism includes a first clamping block and a second clamping block, the middle parts of the first clamping block and the second clamping block are hinged together by a second hinge shaft, and the top ends of the first clamping block and the second clamping block are elastically connected by a tension spring; the top of the first clamping block and the second clamping block also have a pin hole, and a guide pin shaft can be slidably engaged in the pin hole, the pin hole being located between the tension spring and the second hinge shaft; the bottom of the first clamping block and the second clamping block are both provided with a semi-cylindrical cavity.

[0009] Optionally, the tying assembly includes a mounting block, a guide block, a first driving element, and a second driving element. The mounting block is mounted on the swing arm assembly. One end of the mounting block is provided with the first driving element. One end of the guide block is hinged to the mounting block. The other end of the guide block is equipped with a clamping device. The first driving element is used to drive the guide block to rotate. The other end of the guide block is equipped with a second driving element and a traction device. The second driving element is connected to the traction device in a transmission manner. The traction device is used to pull the tying strap.

[0010] Optionally, the guide block is U-shaped, with a shaft hole at one end that is connected to the first driving element, and a mounting cavity at the other end that houses a clamping device, with a U-shaped strap installed inside the guide block.

[0011] Optionally, the clamping device is located on the outside of the mounting block, with a locking plate at one end of the strap and a locking hole on the locking plate, and a guide rod at the other end of the strap. The locking plate of the strap is installed on the inside of the mounting block. The mounting block has a first through hole, and the clamping device has a second through hole, with the locking hole, the first through hole, and the second through hole aligned. The clamping device contains a first traction gear and a second traction gear that mesh with each other. The first traction gear and the second traction gear are located on both sides of the second through hole, and the second driving element is connected to the second traction gear.

[0012] Optionally, a first drive assembly is provided on the top of the support frame, and the swing arm assembly includes a second drive assembly, an upper swing arm and a lower swing arm. The second drive assembly is rotatably mounted on the first drive assembly, the closure assembly is mounted on the lower swing arm, and the bag hanging assembly is mounted on the upper swing arm.

[0013] Optionally, the upper swing arm has a mounting hole at the end away from the second drive assembly, and the bag hanging assembly is installed in the mounting hole.

[0014] Optionally, the first driving component is a drive motor, and the second driving component is a driven block, with the drive motor used to drive the driven block to rotate.

[0015] Optionally, the bag hanging assembly includes a mounting rod, an adjusting rod, and a bag hook. The mounting rod is mounted on the swing arm assembly, one end of the adjusting rod is mounted on the mounting rod, and the other end of the adjusting rod is equipped with a bag hook.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model provides a clamping device for a zip tie. The collection cabinet includes a shell, a collection bag, and a support frame. The support frame is disposed inside the shell, and the collection bag is disposed on the support frame. The shell has a delivery port, and the collection bag is located below the delivery port. Several swing arm assemblies are disposed at the top of the support frame. The swing arm assemblies are provided with bag hanging assemblies and zip tie assemblies. The collection bag is suspended on the bag hanging assemblies. The swing arm assemblies are used to rotate and drive the bag hanging assemblies to move closer or further apart. A zip tie is disposed inside the zip tie assembly, and the zip tie assembly is used to drive the zip tie to wrap around and tighten the collection bag. A clamping device is disposed on the zip tie assembly, and the clamping device is used to clamp the zip tie. Inside the mounting shell of the clamping device, there is a clamping mechanism guide pin and an elastic element. The elastic element is fitted on the guide pin, and the guide pin is used to control the opening and closing of the clamping mechanism.

[0018] Before use, the guide pin is squeezed to open the clamping mechanism. A zip tie is then placed inside the clamping mechanism, and the guide pin is released, retracting out of the clamping mechanism under the elastic force of the elastic element. During use, the zip tie assembly drives the clamping device, causing the zip tie to wrap around the collection bag. The clamping device then releases the zip tie, and finally, the zip tie assembly tightens the zip tie around the collection bag. Once sealed, the collection bag cannot be opened without damaging the zip tie, significantly reducing the risk of losing classified documents. Furthermore, if the collection bag or zip tie is forcibly opened, it is easily visible and can be dealt with promptly, reducing the risk of leakage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the clamping device.

[0020] Figure 2This is a schematic diagram of the swing arm assembly when the collection bag is in the open position.

[0021] Figure 3 yes Figure 2 A side view diagram.

[0022] Figure 4 This is a schematic diagram of the swing arm assembly when the collection bag is in the closed state.

[0023] Figure 5 yes Figure 3 An enlarged schematic diagram of region A in the middle.

[0024] Figure 6 This is a structural diagram of the initial state of the tie assembly.

[0025] Figure 7 This is a schematic diagram of the sealing assembly when the collection bag is in the open position.

[0026] Figure 8 This is a schematic diagram of the sealing assembly when the collection bag is in the sealed state.

[0027] Figure 9 yes Figure 6 A schematic diagram of region B in the middle.

[0028] Figure 10 This is a schematic diagram of the arc-shaped mounting block.

[0029] Figure 11 This is a schematic diagram of the structure of the first traction gear and the second traction gear.

[0030] Figure 12 This is a schematic diagram of the external structure of the clamping device.

[0031] Figure 13 This is an exploded schematic diagram of the clamping mechanism.

[0032] Figure 14 This is a structural diagram of the guide pin.

[0033] Figure 15 yes Figure 4 A magnified view of region C in the middle.

[0034] Figure 16 This is a structural schematic diagram of the swing arm assembly.

[0035] In the diagram: 1-House, 11-Dispensing port, 12-Combination lock, 2-Support column, 21-Base plate, 22-Connecting rod, 23-First drive assembly, 3-Swing arm assembly, 31-Second drive assembly, 32-Upper swing arm, 321-Mounting hole, 33-Lower swing arm, 4-Bag hanging assembly, 41-Mounting rod, 42-Adjusting rod, 43-Bag hook, 5-Bag closure assembly, 51-Mounting block, 511-First through hole, 52-Guide block, 521-Shaft hole, 522-Mounting cavity, 53- 54-Second driving element, 56-Spring pressure plate, 6-Traction device, 61-Second through hole, 62-First traction gear, 63-Second traction gear, 64-Elastic clamping element, 7-Clamping device, 71-Mounting shell, 72-Clamping mechanism, 721-First clamping block, 722-Second clamping block, 73-Guide pin, 74-Elastic element, 75-Tension spring, 76-Second hinge shaft, 8-Tightening strap, 81-Locking plate, 82-Locking hole, 83-Guide rod. Detailed Implementation

[0036] Example 1:

[0037] This embodiment provides an optional solution for the specific structure of the cabinet for collecting classified materials. In this embodiment, as shown... Figures 1-4 As shown, the collection cabinet includes a housing 1, a collection bag, and a support frame. The support frame is located inside the housing 1, and the collection bag is mounted on the support frame. The housing 1 has a delivery port 11, and the collection bag is located below the delivery port 11. Several swing arm assemblies 3 are mounted on the top of the support frame, and bag hanging assemblies 4 and sealing assemblies 5 are mounted on the swing arm assemblies 3. The collection bag is suspended on the bag hanging assemblies 4. The swing arm assemblies 3 are used to rotate and drive the bag hanging assemblies 4 to move closer or further apart. The sealing assembly 5 has a tightening strap 8 inside, which is used to drive the tightening strap 8 to wrap around and tighten the collection bag. Before use, by hanging the collection bag on the bag hanging assembly 4, the classified carrier is put into the delivery port 11. The classified carrier falls into the collection bag. When enough classified carrier is collected inside the collection bag, the several swing arm assemblies 3 rotate simultaneously, causing the top of the collection bag to contract. Then, the sealing assembly 5 drives the tightening strap 8 to wrap around and tighten the top of the collection bag. Once the seizure bag is full, the swing arm assembly 3 closes the bag opening, and then the sealing assembly 5 automatically seals the bag opening with the tightening strap 8. After sealing, the bag cannot be opened without damaging the sealing bag or the tightening strap 8, thus greatly reducing the risk of losing classified documents. However, if the bag is forcibly opened or the strap 8 is tightened, it is easily noticeable from the outside, allowing for timely handling and reducing the risk of leakage.

[0038] In this embodiment, as Figures 2-4As shown, the support frame includes a base plate 21, and four support columns 2 are provided at the four top corners of the base plate 21. The support columns 2 are connected to each other by connecting rods 22. The two support columns 2 on the side of the base plate 21 closest to the cabinet door of the shell 1 are not connected by connecting rods 22.

[0039] In this embodiment, as Figures 3-5 As shown, a first drive assembly 23 is provided at the top of the support column 2. The first drive assembly 23 is a drive motor. The housing of the drive motor is fixedly provided at the top of the support column 2. The second drive assembly 31 is a driven block. The drive motor is used to drive the driven block to rotate. The power output shaft of the drive motor is connected to the driven block.

[0040] In this embodiment, the housing 1 is provided with a cabinet door, and the cabinet door is provided with a combination lock 12. The delivery port 11 is located on the same side of the housing 1 as the cabinet door.

[0041] Example 2:

[0042] Based on Embodiment 1, this embodiment provides an optional solution for the specific structure of the swing arm assembly and the hanging bag assembly.

[0043] In this embodiment, as Figures 2-5 as well as Figure 16 As shown, the swing arm assembly 3 includes a second drive assembly 31, an upper swing arm 32, and a lower swing arm 33. The second drive assembly 31 is rotatably mounted on the first drive assembly 23. The closure assembly 5 is mounted on the lower swing arm 33, and the bag hanging assembly 4 is mounted on the upper swing arm 32. A mounting hole 321 is provided at the end of the upper swing arm 32 away from the second drive assembly 31, and the bag hanging assembly 4 is installed in the mounting hole 321.

[0044] In this embodiment, as Figure 16 As shown, the upper swing arm 32 and the lower swing arm 33 are respectively disposed at the top and bottom of the driven block.

[0045] In this embodiment, as Figure 5 As shown, the bag-hanging assembly 4 includes a mounting rod 41, an adjusting rod 42, and a bag hook 43. The mounting rod 41 is mounted on the swing arm assembly 3. One end of the adjusting rod 42 is mounted on the mounting rod 41, and the other end of the adjusting rod 42 is fitted with the bag hook 43. The top end of the mounting rod 41 has a threaded hole, and one end of the adjusting rod 42 has an external thread. The adjusting rod 42 is rotated to adjust its extension length. The bag hook 43 is cross-shaped.

[0046] In this embodiment, as Figure 4 As shown, the upper swing arm 32 and lower swing arm 33 of the swing arm assembly 3 on the adjacent support column 2 are staggered in height to prevent interference between adjacent upper swing arms 32 or between adjacent lower swing arms 33 when the swing arm assembly 3 rotates.

[0047] Example 3:

[0048] This embodiment provides an optional solution for the specific structure of the knotting assembly, based on any of the above embodiments.

[0049] In this embodiment, as Figures 6-11 As shown, the tying assembly 5 includes a mounting block 51, a guide block 52, a first driving element 53, and a second driving element 54. The mounting block 51 is mounted on the swing arm assembly 3. One end of the mounting block 51 is provided with the first driving element 53. One end of the guide block 52 is hinged to the mounting block 51. The other end of the guide block 52 is equipped with a clamping device 7. The first driving element 53 is used to drive the guide block 52 to rotate. The other end of the guide block 52 is equipped with the second driving element 54 and a traction device 6. The second driving element 54 is connected to the traction device 6 in a transmission manner. The traction device 6 is used to pull the tying strap 8.

[0050] Specifically, the guide block 52 is U-shaped, one end of the guide block 52 is provided with a shaft hole 521, the shaft hole 521 is connected to the first driving element 53, the other end of the guide block 52 is provided with a mounting cavity 522, a clamping device 7 is installed in the mounting cavity 522, and a U-shaped tie band 8 is installed in the guide block 52. The clamping device 7 is located on the outside of the mounting block 51. One end of the strapping band 8 is provided with a locking plate 81, and the locking plate 81 has a locking hole 82. The other end of the strapping band 8 is provided with a guide rod 83. The locking plate 81 of the strapping band 8 is installed on the inside of the mounting block 51. The mounting block 51 has a first through hole 511, and the clamping device 7 has a second through hole 61. The locking hole 82, the first through hole 511, and the second through hole 61 are aligned. The clamping device 7 is provided with a first traction gear 62 and a second traction gear 63 that mesh with each other. The first traction gear 62 and the second traction gear 63 are located on both sides of the second through hole 61, and the second driving element 54 is connected to the second traction gear 63.

[0051] In this embodiment, the keyhole 82 only allows the tying strap 8 to pass through in one direction.

[0052] In this embodiment, a spring pressure plate 56 is installed at one end of the mounting block 51 via a first hinge shaft. A torsion spring is provided on the spring pressure plate 56, and the spring pressure plate 56 presses the locking plate 81 by the elastic force of the torsion spring.

[0053] When the collection bag is in the open position, the locking plate 81 is installed at the other end of the mounting block 51, the fastening strap 8 lies in a U-shape inside the guide block 52, and the clamping device 7 clamps the guide rod 83 and the guide rod 83 extends beyond the end face of the mounting block 51.

[0054] When a sufficient number of classified materials are placed inside the seizure bag, the first driving element 53 drives the guide block 52 to rotate around the hinge shaft, thereby causing the U-shaped guide block 52 to lock the opening of the seizure bag. Simultaneously, as... Figure 6 and Figure 7 As shown, after the guide block 52 rotates 180°, the guide block 52 at one end where the clamping device 7 is installed causes the tie band 8 to bend, and the guide rod 83 of the tie band 8 passes through the lock hole 81. The guide rod 83 enters the traction device 6 through the first through hole 511 and the second through hole 61 and is located between the first traction gear 62 and the second traction gear 63. Subsequently, the second drive element 54 drives the second traction gear 63 to rotate. The first traction gear 62 and the second traction gear 63 squeeze and drive the guide rod 83 forward, and the tie band 8 passes through the traction device 6. After the second drive element 54 drives the tightening strap 8 to tighten the collection bag, the second drive element 54 rotates in the opposite direction and pushes the tightening strap 8 out of the traction device 6. At the same time, since the locking hole 82 only allows the tightening strap 8 to pass through in one direction, the tightening strap 8 pushes the locking plate 81 to move. When the pushing force of the traction device 6 is greater than the elasticity of the spring pressure plate 56, the locking plate 81 falls off the mounting block 51. At this time, the tightening strap 8 is tightened on the collection bag and falls off the mounting block 51.

[0055] In this embodiment, as Figure 11 As shown, the tooth tips of the first traction gear 62 and the second traction gear 63 have arc-shaped recesses, which are used to hold the tie band 8 in place, making it easier to pull the tie band 8.

[0056] In this embodiment, as Figure 9 As shown, the traction device 6 also includes an elastic clamping member 64, which is used to push the first traction gear 62 against the second traction gear 63, thereby ensuring sufficient friction between the first traction gear 62 and the second traction gear 63 when tractioning the cable tie 8. Simultaneously, the guide rod 83 is smaller than the cable tie 8, and the elastic clamping member 64 allows the distance between the first traction gear 62 and the second traction gear 63 to adapt to changes in the size of the cable tie 8.

[0057] In this embodiment, both the first driving element 53 and the second driving element 54 are drive motors.

[0058] Example 4:

[0059] This embodiment provides an optional solution for the specific structure of the clamping device 7, based on any of the above embodiments.

[0060] In this embodiment, as Figures 12-16As shown, the clamping device 7 has a mounting housing 71, which contains a clamping mechanism 72, a guide pin 73, and an elastic element 74. The guide pin 73 is fitted with the elastic element 74, and the guide pin 73 is used to control the opening and closing of the clamping mechanism 72. The clamping mechanism 72 includes a first clamping block 721 and a second clamping block 722. The middle parts of the first clamping block 721 and the second clamping block 722 are hinged together by a second hinge shaft 76. The top ends of the first clamping block 721 and the second clamping block 722 are elastically connected by a tension spring 75. The top of the first clamping block 721 and the second clamping block 722 also have a pin hole. The guide pin shaft 73 can be slidably engaged in the pin hole. The pin hole is located between the tension spring 75 and the second hinge shaft 76. The bottom of the first clamping block 721 and the second clamping block 722 are both provided with a semi-cylindrical cavity. The semi-cylindrical cavities at the bottom of the first clamping block 721 and the second clamping block 722 are combined to form the clamping cavity of the strap 8.

[0061] In this embodiment, as Figure 15 As shown, a limiting plate 731 is provided on the guide pin 73. The end of the guide pin 73 near the clamping mechanism 72 has a conical guide tip, and the end of the guide pin 73 away from the clamping mechanism 72 protrudes beyond the mounting housing 71. The protruding length of the guide pin 73 is less than the protruding length of the strapping band 8 on the mounting housing 73. An elastic element 74 is fitted on the guide pin 73. The elastic element 74 is located between the limiting plate 731 and the clamping mechanism 72. When the guide pin 73 is not subjected to external force, the elasticity of the elastic element 74 causes the guide tip of the guide pin 73 to disengage from the pin hole, so that the clamping mechanism 72 clamps the internal strapping band 8.

[0062] In use, the guide pin 73 can be squeezed to insert its guide tip into the pin hole formed on the top of the first clamping block 721 and the second clamping block 722, causing the tops of the first clamping block 721 and the second clamping block 722 to move away from each other, and thus the bottoms of the first clamping block 721 and the second clamping block 722 to also move away from each other, thereby causing the clamping mechanism 72 to release the strap 8. That is, when the first driving element 53 drives the guide block 52 to rotate, the guide rod 83 of the strap 8 first enters the clamping device 7. After the guide rod 83 enters between the first traction gear 62 and the second traction gear 63, the strap 8 forms a ring around the collection bag. After the guide pin 73 abuts against the mounting block 51, the guide tip of the guide pin 73 is inserted into the pin hole. Subsequently, the clamping mechanism 72 releases the tightening strap 8. Then, the second drive motor 54 drives the first traction gear 62 and the second traction gear 63 to rotate, causing the loop formed by the tightening strap 8 to gradually shrink. The tightening strap 8 detaches from the guide block 52 and tightens the opening of the collection bag. After the opening of the collection bag is tightened, the second drive element 54 rotates in the opposite direction, thereby pushing the tightening strap 8 away from the entire sealing assembly 5. The first drive element 53 also rotates in the opposite direction, causing the guide block 52 to return to its initial position. After the guide pin 73 disengages from the mounting block 51, the elastic element 74 pushes the elastic pin 73 out of the pin hole.

[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A clamping device for a strap, the collection cabinet includes a housing (1), a collection bag and a support frame, the support frame is disposed inside the housing (1), the collection bag is disposed on the support frame, the housing (1) is provided with a delivery port (11), and the collection bag is located below the delivery port (11); The top of the support frame is provided with several swing arm assemblies (3), and the swing arm assemblies (3) are provided with bag hanging assemblies (4) and closure assemblies (5); the collection bag is suspended on the bag hanging assembly (4), and the swing arm assembly (3) is used to rotate and drive the bag hanging assembly (4) to move closer or further away from each other; the closure assembly (5) is provided with a closure strap (8), and the closure assembly (5) is used to drive the closure strap (8) to wrap around and tie the collection bag, and the closure assembly (5) is provided with a clamping device (7); Its features are: The clamping device (7) is used to clamp the strap (8). The mounting shell (71) of the clamping device (7) is provided with a clamping mechanism (72), a guide pin (73) and an elastic element (74). An elastic element (74) is fitted on the guide pin (73), and the guide pin (73) is used to control the opening and closing of the clamping mechanism (72).

2. The clamping device for a strapping band according to claim 1, characterized in that, The clamping mechanism (72) includes a first clamping block (721) and a second clamping block (722). The middle parts of the first clamping block (721) and the second clamping block (722) are hinged together by a second hinge shaft (76). The top ends of the first clamping block (721) and the second clamping block (722) are elastically connected by a tension spring (75). The first clamping block (721) and the second clamping block (722) also have pin holes at their tops. The guide pin (73) is slidably engaged in the pin hole, which is located between the tension spring (75) and the second hinge shaft (76). The bottom of both the first clamping block (721) and the second clamping block (722) is provided with a semi-cylindrical cavity.

3. The clamping device for a strapping band according to claim 1, characterized in that, The tying assembly (5) includes a mounting block (51), a guide block (52), a first driving element (53), and a second driving element (54); The mounting block (51) is mounted on the swing arm assembly (3). One end of the mounting block (51) is provided with a first driving element (53). One end of the guide block (52) is hinged to the mounting block (51). The other end of the guide block (52) is provided with a clamping device (7). The first driving element (53) is used to drive the guide block (52) to rotate. The other end of the guide block (52) is equipped with a second drive element (54) and a traction device (6). The second drive element (54) is connected to the traction device (6) in a transmission manner. The traction device (6) is used to pull the strap (8).

4. The clamping device for a strapping band according to claim 3, characterized in that, The guide block (52) is U-shaped. One end of the guide block (52) is provided with a shaft hole (521), which is connected to the first driving element (53) for transmission. The other end of the guide block (52) is provided with a mounting cavity (522), in which a clamping device (7) is installed. The strapping band (8) is U-shaped and installed in the guide block (52).

5. The clamping device for a strapping band according to claim 4, characterized in that, The clamping device (7) is located on the outside of the mounting block (51). One end of the strapping band (8) is provided with a locking plate (81). The locking plate (81) has a locking hole (82). The other end of the strapping band (8) is provided with a guide rod (83). The locking plate (81) of the strapping band (8) is installed on the inside of the mounting block (51). The mounting block (51) has a first through hole (511), and the clamping device (7) has a second through hole (61). The locking hole (82), the first through hole (511), and the second through hole (61) are aligned. The clamping device (7) is provided with a first traction gear (62) and a second traction gear (63) that mesh with each other. The first traction gear (62) and the second traction gear (63) are located on both sides of the second through hole (61), and the second driving element (54) is connected to the second traction gear (63) in a transmission connection.

6. The clamping device for a strapping band according to claim 1, characterized in that, The support frame is provided with a first drive assembly (23) at the top. The swing arm assembly (3) includes a second drive assembly (31), an upper swing arm (32) and a lower swing arm (33). The second drive assembly (31) is rotatably mounted on the first drive assembly (23). The closure assembly (5) is mounted on the lower swing arm (33). The upper swing arm (32) is equipped with a bag hanging assembly (4).

7. The clamping device for a strapping band according to claim 6, characterized in that, The upper swing arm (32) has a mounting hole (321) at one end away from the second drive assembly (31), and the bag hanging assembly (4) is installed in the mounting hole (321).

8. The clamping device for a cable tie according to claim 7, characterized in that, The first drive component (23) is a drive motor, and the second drive component (31) is a driven block. The drive motor is used to drive the driven block to rotate.

9. The clamping device for a strapping band according to claim 1, characterized in that, The bag hanging assembly (4) includes a mounting rod (41), an adjusting rod (42), and a bag hook (43). The mounting rod (41) is mounted on the swing arm assembly (3). One end of the adjusting rod (42) is mounted on the mounting rod (41), and the other end of the adjusting rod (42) is equipped with a bag hook (43).

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