Binding machine

Abstract

The utility model provides a strapping machine. The strapping machine comprises a base, a strapping belt annular guide rail assembly, a strapping belt conveying assembly, a cutting assembly, a hot melting assembly and a returning assembly. The bundling belt is pulled into the bundling belt annular guide rail assembly through the bundling belt conveying assembly, so that the bundling belt forms an annular structure around the bundling space, and then in the bundling process, the bundling belt is pulled back to be tensioned on a bundled object; the free end and the cutting end of the binding belt are subjected to hot melting and then bonded together through cutting of a cutting piece in the cutting assembly and cooperation of a hot melting block and an abutting block in the hot melting assembly in sequence, so that the bound object can be bound automatically and rapidly, and the binding efficiency is greatly improved; and compared with a rubber band, the binding belt has better durability and binding stability.

Description

Technical Field

[0001] This utility model relates to the field of strapping technology, and in particular to a strapping machine. Background Technology

[0002] In factories today, when materials need to be shipped, they are usually organized into a predetermined quantity and placed in boxes. Currently, workers typically bind the predetermined quantity of materials together using rubber bands or similar methods, a process that is time-consuming and labor-intensive. Utility Model Content

[0003] In view of this, this application proposes a strapping machine.

[0004] This application provides a strapping machine, the strapping machine comprising:

[0005] The base includes a placement platform and a receiving cavity, and the placement platform also includes a guide rail hole communicating with the receiving cavity;

[0006] A strap ring guide rail assembly is disposed on the placement platform and at least partially located in the guide rail hole. The strap ring guide rail assembly and the placement platform form a strapping space for placing the strapped object. The strap ring guide rail assembly forms a clearance hole that communicates with the receiving cavity.

[0007] A strapping conveyor assembly, disposed in the receiving cavity, is used to input the free end of the strapping into the strapping ring guide assembly through the clearance hole, and to drive the free end of the strapping along the strapping ring guide assembly once before entering the clearance hole so that the strapping is arranged around the binding space. The strapping conveyor assembly is also used to drive the strapping back from the clearance hole so that the strapping fits against the object being bound.

[0008] A cutting assembly includes a cutting element at least partially located in a clearance hole, the cutting element being used to cut the strapping to form a cut end;

[0009] A hot melt assembly includes a hot melt block located at a position corresponding to the receiving cavity and the clearance hole;

[0010] The retraction assembly includes an abutment block located in the clearance hole and spaced apart from the hot melt block;

[0011] The hot melt block is used to heat-melt and bond the free end and cut end of the strapping located between the abutment block and the hot melt block together to form a ring-shaped binding structure that is bound to the object being bound.

[0012] According to one embodiment of the present invention, the strapping conveyor assembly includes:

[0013] A winding reel is used to hold strapping.

[0014] Traction clamp;

[0015] The traction shaft, together with the traction clamp, forms a strapping conveying space to drive the strapping to move;

[0016] The first drive motor is connected to the traction shaft. When the drive traction shaft rotates in the first direction, it drives the strapping tape to be input into the strapping tape ring guide assembly from the clearance hole. When the drive traction shaft runs in the second direction, it drives the strapping tape to be pulled back from the clearance hole so that the strapping tape fits onto the object being strapped.

[0017] According to one embodiment of the present invention, the strapping machine further includes:

[0018] The drive assembly disposed within the receiving cavity includes a drive shaft and a second drive motor connected to the drive shaft. The drive assembly also includes a guide cam, a positioning cam, a cutting cam, a hot melt cam, and a retraction cam sleeved on the drive shaft.

[0019] The second drive motor is used to drive the drive shaft to rotate, thereby rotating the guide cam, positioning cam, cutting cam, hot melt cam, and retraction cam.

[0020] According to one embodiment of the present invention, the strapping ring guide rail assembly includes two separable ring guide rail components;

[0021] The guide cam is used to drive the two annular guide rails to separate along the binding direction perpendicular to the strapping when rotating, so that the strapping can be detached from the annular guide rails.

[0022] The strapping ring guide assembly further includes a first elastic element, which provides a first elastic restoring force to cause the two ring guide elements to fit together along a strapping direction perpendicular to the strapping.

[0023] According to one embodiment of the present invention, the strapping machine further includes a first sensor, and the positioning cam includes a positioning structure, wherein the first sensor is used to detect the positioning structure.

[0024] According to one embodiment of the present invention, the cutting assembly further includes a cutting linkage, wherein the cutting cam is used to drive the cutting linkage when rotating, thereby driving the cutting component to cut the strapping.

[0025] According to one embodiment of the present invention, the hot melt assembly further includes a lifting assembly located in the receiving cavity and connected to the hot melt block. The hot melt cam is used to drive the lifting assembly to move toward the abutment block when rotating, so that the hot melt block abuts the strap onto the abutment block.

[0026] According to one embodiment of the present invention, the retraction assembly further includes a pulling member connected to the abutment block. The retraction cam is used to drive the pulling member when rotating, so that the pulling member can drive the abutment block to move along the binding direction perpendicular to the strapping, thereby causing the abutment block to detach from the annular binding structure and the bound object.

[0027] The retraction assembly further includes a second elastic element, which provides a second elastic restoring force to move the abutment block along a binding direction perpendicular to the strapping, thereby restoring the abutment block into the clearance hole.

[0028] According to one embodiment of the present invention, the placement platform is an elastic plate, and the placement platform and the abutment block are spaced apart, so that after the abutment block moves away from the annular binding structure, the placement platform drives the bound object to be lifted.

[0029] According to one embodiment of the present invention, the strapping machine further includes a second sensor, which is disposed on the placement platform and is used to detect the object being strapped.

[0030] Beneficial effects: This utility model provides a strapping machine that uses a strapping conveyor assembly to pull the strapping into a strapping ring guide assembly, forming a ring structure around the strapping space. During the strapping process, the strapping is pulled back to tension the strapped object. Then, the strapping is cut by the cutting component in the cutting assembly, and the free end and the cut end of the strapping are melted and bonded together by the cooperation of the heat-melting block and the abutment block in the heat-melting assembly. This allows for automatic and rapid strapping of objects, greatly improving strapping efficiency. Moreover, the strapping has better durability and strapping stability compared to rubber bands. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of one embodiment of the strapping machine proposed in this application;

[0033] Figure 2 for Figure 1 The diagram shows a view of the internal structure of the strapping machine housing.

[0034] Figure 3 for Figure 1 The diagram shows a structural schematic of the internal structure of the strapping machine housing from another perspective.

[0035] Figure 4 for Figure 1 The diagram shows a structural schematic of the internal structure of the strapping machine housing from another perspective.

[0036] Figure 5 for Figure 1 The diagram shows a structural schematic of the inside of the strapping machine housing from another perspective. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] It should be understood that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] It should also be understood that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or may be connected to an intermediary element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element through an intermediary element.

[0040] The terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. Descriptions using terms such as "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0041] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0042] Please see Figures 1-5 This application provides a strapping machine 10, which includes a base 100, a strapping ring guide assembly 200, a strapping conveyor assembly 300, a cutting assembly 400, a heat fusion assembly 500, and a retraction assembly 600.

[0043] like Figure 1 , Figure 2 as well as Figure 3 As shown, the base 100 includes a storage platform 110 and a receiving cavity 120. The storage platform 110 is provided with a guide rail hole 130 communicating with the receiving cavity 120. A strapping ring guide rail assembly 200 is disposed on the storage platform 110 and at least partially located in the guide rail hole 130. Optionally, the strapping ring guide rail assembly 200 is integrally ring-shaped, partially fixed to the storage platform 110 and partially located in the guide rail hole 130. The strapping ring guide rail assembly 200 and the storage platform 110 form a strapping space, which can be used to place the strapped item. The strapped item can be factory materials, banknotes, etc., without limitation, thereby allowing the strapped item located between the strapping ring guide rail assembly 200 and the storage platform 110 to be strapped. The strapping ring guide rail assembly 200 has a clearance hole 210 communicating with the receiving cavity 120.

[0044] like Figure 3 As shown, the strapping conveyor assembly 300 is disposed in the receiving cavity 120, and is used to input the free end of the strapping into the strapping ring guide assembly 200 through the clearance hole 210, and drive the free end of the strapping to enter the clearance hole after one revolution around the strapping ring guide assembly 200 so that the strapping is arranged around the strapping space.

[0045] Optionally, the strapping ring guide assembly 200 is provided with a guide space. The strapping conveyor assembly 300 can pull the free end of the strapping into the guide space through the clearance hole 210. Due to the limitation of the guide space, the free end of the strapping will move along the guide space during the continued pulling process of the strapping conveyor assembly 300, so that the free end of the strapping will circle the strapping ring guide assembly 200 once and enter the clearance hole, thereby forming a ring structure and setting around the strapping space.

[0046] In an optional embodiment, during the strapping process, the strapping conveyor assembly 300 is also used to pull the strap back from the clearance hole 210 so that the strap adheres to the object being strapped. In an optional scenario, since the circumference of the object being strapped is generally less than the strapping length of the strapping space (or less than the length of the strap forming a ring structure in the ring guide assembly 200), in order to better strap the object, after the free end of the strap is locked, the strapping conveyor assembly 300 is also used to pull the strap back so that the strap disengages from the strap ring guide assembly 200 so that it can be tensioned on the object being strapped.

[0047] like Figure 5 As shown, the cutting assembly 400 includes a cutter 410 located at least partially in the clearance hole 210, which is used to cut the strap to form a cut end.

[0048] Optionally, the cutter 410 can cut the strap by moving back and forth.

[0049] like Figure 4 and Figure 5 As shown, the hot melt assembly 500 includes a hot melt block 510 located in the receiving cavity 120 corresponding to the clearance hole 210, and the retraction assembly 600 includes an abutment block 610 located in the clearance hole 210 and spaced apart from the hot melt block 510. Optionally, the abutment block 610 is located below the storage platform 110.

[0050] The hot melt block 510 is used to bond the free end and cut end of the strap located between the abutment block 610 and the hot melt block 510 together by hot melting, forming a ring-shaped strapping structure that is strapped to the object. Optionally, the strap has a hot melt adhesive strip, and by hot melting the hot melt adhesive strip, the free end and cut end of the strap are bonded together.

[0051] The working principle of the above structure is explained below:

[0052] 1. The strapping conveyor assembly 300 first pulls the free end of the strapping into the guide rail space through the clearance hole 210. Specifically, it enters the strapping ring guide rail assembly 200 between the heat fusion block 510 and the abutment block 610, so that the free end of the strapping will circle the strapping ring guide rail assembly 200 once before entering the heat fusion block 510 and the abutment block 610.

[0053] 2. After the object to be bundled is placed in the bundling space, that is, between the loop structures of the strapping, the strapping conveyor 300 pulls back the strapping, so that the strapping is detached from the guide rail space and tensioned on the object to be bundled.

[0054] 3. The cutting assembly 400 is then used by the cutting element 410 to cut the strapping to form a cut end.

[0055] 4. The hot melt assembly 500 uses the hot melt block 510 and the abutment block 610 to heat melt and bond the free end and the cut end of the strapping tape located between the abutment block 610 and the hot melt block 410 together to form a ring-shaped strapping structure that is strapped to the object being strapped, thereby realizing the automatic strapping of the object being strapped.

[0056] In the above embodiments, the strapping conveyor 300 pulls the strapping into the strapping ring guide assembly 200, so that the strapping forms a ring structure around the binding space. Then, during the binding process, the strapping is pulled back to make it taut on the object being bound. Then, the free end and the cut end of the strapping are heat-fused and bonded together by the cutting part 410 in the cutting assembly 400 and the cooperation of the heat-melting block 510 and the abutment block 610 in the heat-melting assembly 500. This allows for automatic and fast binding of the object, greatly improving the binding efficiency. Moreover, the strapping has better durability and binding stability than rubber bands.

[0057] like Figure 3 As shown, the strapping conveyor assembly 300 includes a winding reel 310, a traction clamp 320, a traction shaft 330, and a first drive motor 340. The winding reel 310 is used to hold the strapping; optionally, the strapping can be wound onto the winding reel 310 in a strapping roll manner. The traction shaft 330 and the traction clamp 320 form a strapping conveying space to drive the strapping to move. That is, the traction shaft 330 and the traction clamp 320 clamp the strapping together. The first drive motor 340 is connected to the traction shaft 330. When the first drive motor 340 drives the traction shaft 330 to rotate in the first direction, the traction shaft 330, together with the traction clamp 320, drives the strapping from the clearance hole 210 into the guide rail space of the strapping annular guide rail assembly 200. When the first drive motor 340 drives the traction shaft 330 to run in the second direction, the traction shaft 330, together with the traction clamp 320, drives the strapping to pull back from the clearance hole 210 so that the strapping adheres to the bundled object.

[0058] like Figure 3 As shown, the strapping machine 10 also includes a drive assembly 700 disposed in the receiving cavity 120. The drive assembly 700 includes a drive shaft 710 and a second drive motor 770 connected to the drive shaft 710. The drive assembly 700 also includes a guide cam 720, a positioning cam 730, a cutting cam 740, a heat-melting cam 750, and a retraction cam 760 sleeved on the drive shaft 710.

[0059] Optionally, the guide cam 720, positioning cam 730, cutting cam 740, hot melt cam 750 and retraction cam 760 are sequentially sleeved on the drive shaft 710.

[0060] The second drive motor 770 is used to drive the drive shaft 710 to rotate, thereby driving the guide cam 720, positioning cam 730, cutting cam 740, hot melt cam 750 and retraction cam 760 to rotate.

[0061] Optionally, the strapping ring guide assembly 200 includes two separable ring guide members 220, and the guide cam 720 is used to drive the two ring guide members 220 to separate along the strapping direction perpendicular to the strapping when rotated, so that the strapping can be disengaged from the ring guide members 220.

[0062] by Figure 2 Taking the perspective as an example, the binding direction perpendicular to the strap is specifically the horizontal direction perpendicular to the extension direction of the strap. By separating the annular guide rail 220, the guide rail space formed by the two annular guide rail 220 becomes larger, and the strap will not be clamped. As a result, when the strap conveying assembly 300 pulls the strap back from the clearance hole 210 so that the strap is attached to the bundled object, the strap can be directly detached from the guide rail space. During the pull-back process, the strap will not return along the path of the guide rail space, but will be directly tensioned on the bundled object.

[0063] Optionally, the strap loop guide assembly 200 may further include a first elastic element (not shown) for providing a first elastic restoring force so that the two loop guide elements 220 fit together in a direction perpendicular to the strapping direction.

[0064] In an optional embodiment, during the rotation of the guide cam 720, due to the structure of its cam, a certain position of its rotation cycle can drive the first linkage 230 of the strap ring guide assembly 200, thereby causing the first linkage 230 to drive the two ring guide components 220 to separate.

[0065] Optionally, the strapping machine 10 also includes a first sensor 800, and the positioning cam 730 includes a positioning structure (not shown), the first sensor 800 being used to detect the positioning structure.

[0066] Optionally, the first sensor 800 may be an optical encoder, and its positioning structure may be a groove. By detecting this groove, it can be determined whether the drive shaft 710 has rotated one revolution.

[0067] like Figure 3 and Figure 5 As shown, the cutting assembly 400 also includes a cutting linkage 420, and the cutting cam 740 is used to drive the cutting linkage 420 to cut the strapping when it rotates.

[0068] Alternatively, similarly, the cutting cam 740, due to its cam structure, can drive the cutting linkage 420 at a certain position during its rotation cycle, thereby causing the cutting element 410 to cut the strapping.

[0069] like Figure 3 and Figure 5As shown, the hot melt assembly 500 also includes a lifting assembly 520 located in the receiving cavity 120 and connected to the hot melt block 510. The hot melt cam 750 is used to drive the lifting assembly 520 to move toward the abutment block 610 when rotating, so that the hot melt block 510 abuts the strap onto the abutment block 610.

[0070] Optionally, when heat fusion is required, the heat fusion cam 750 is used to drive the lifting assembly 520 to move toward the abutment block 610 when rotating, so that the heat fusion block 510 abuts the strapping against the abutment block 610, thereby achieving heat fusion of the strapping.

[0071] like Figure 4 As shown, the retraction assembly 600 also includes a pull member 620 connected to the abutment block 610. The retraction cam 760 is used to drive the pull member 620 when rotating, so that the pull member 620 can drive the abutment block 610 to move in a direction perpendicular to the strapping direction, thereby causing the abutment block 610 to disengage from the ring-shaped strapping structure and the strapped object.

[0072] Optionally, since the strapping is thermally bonded between the abutment block 610 and the hot melt block 510, the annular binding structure is located below the abutment block 610, making it difficult to remove the bound object and the annular binding structure. Therefore, the retracting cam 760 is used to drive the pulling member 620 when rotating, so that the pulling member 620 can drive the abutment block 610 to move along the binding direction perpendicular to the strapping, so that the abutment block 610 is separated from the annular binding structure and the bound object. This prevents the abutment block 610 from blocking the annular binding structure and the bound object, making it easier to remove the annular binding structure and the bound object from the storage platform 110.

[0073] Optionally, a single second drive motor 770 drives the drive shaft 710 to rotate, thereby driving the guide cam 720, positioning cam 730, cutting cam 740, hot melt cam 750, and retraction cam 760 to rotate. By setting the structure of each cam and controlling the strapping ring guide assembly 200, cutting assembly 400, hot melt assembly 500, and retraction assembly 600 to work in sequence, the number of motors is greatly reduced, and the control cost and complexity are also reduced.

[0074] The retraction assembly 600 also includes a second elastic element (not shown), which provides a second elastic restoring force to move the abutment block 610 along a binding direction perpendicular to the strap, thereby restoring the abutment block 610 into the clearance hole 210.

[0075] In an optional embodiment, the placement platform 110 is an elastic plate, which can be a metal plate and has a certain elasticity. The placement platform 110 and the abutment block 610 are spaced apart so that after the abutment block 610 moves away from the ring-shaped binding structure, the placement platform 110 drives the bound object to be lifted.

[0076] Optionally, compared to a rigid storage platform 110, if the bundled object is not removed from the storage platform 110 in time after the abutment block 610 moves away from the annular binding structure, the abutment block 610 may return to the space between the annular binding structure and the bundled object under the action of the second elastic element, making it impossible to remove the bundled object. Therefore, by setting the storage platform 110 to be elastic, after the abutment block 610 moves away from the annular binding structure, the storage platform 110 lifts the bundled object and the annular binding structure, so that when the abutment block 610 resets, it will not return to the space between the annular binding structure and the bundled object, greatly improving the practicality and convenience of the entire structure.

[0077] Optionally, the strapping machine 10 also includes a second sensor 900, which is disposed on the placement platform 110 and is used to detect the bundled items.

[0078] In an optional embodiment, the second sensor 900 can be a photoelectric sensor. When the object to be bundled is placed on the platform 110, the second sensor 900 can detect the object to be bundled and control the first drive motor 340 and the second drive motor 770 to rotate, so that the bundling machine 10 can automatically complete the entire bundling process.

[0079] In summary, this application provides a strapping machine 10, which uses a strapping conveyor assembly 300 to pull the strapping into a strapping ring guide assembly 200, so that the strapping forms a ring structure around the strapping space. Then, during the strapping process, the strapping is pulled back to make it taut on the object being strapped. The strapping is then cut by the cutting component 410 in the cutting assembly 400, and the free end and the cut end of the strapping are bonded together by the cooperation of the hot melt block 510 and the abutment block 610 in the hot melt assembly 500. This allows for automatic and rapid strapping of the object, greatly improving the efficiency of strapping. Moreover, the strapping has better durability and strapping stability compared to rubber bands.

[0080] 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 the different embodiments or examples.

[0081] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A strapping machine, characterized in that, The strapping machine includes: The base includes a placement platform and a receiving cavity, and the placement platform also includes a guide rail hole communicating with the receiving cavity; A strap ring guide rail assembly is disposed on the placement platform and at least partially located in the guide rail hole. The strap ring guide rail assembly and the placement platform form a strapping space for placing the strapped object. The strap ring guide rail assembly forms a clearance hole that communicates with the receiving cavity. A strapping conveyor assembly, disposed in the receiving cavity, is used to input the free end of the strapping into the strapping ring guide assembly through the clearance hole, and to drive the free end of the strapping along the strapping ring guide assembly once before entering the clearance hole so that the strapping is arranged around the binding space. The strapping conveyor assembly is also used to drive the strapping back from the clearance hole so that the strapping fits against the object being bound. A cutting assembly includes a cutting element at least partially located in a clearance hole, the cutting element being used to cut the strapping to form a cut end; A hot melt assembly includes a hot melt block located at a position corresponding to the receiving cavity and the clearance hole; The retraction assembly includes an abutment block located in the clearance hole and spaced apart from the hot melt block; The hot melt block is used to heat-melt and bond the free end and cut end of the strapping located between the abutment block and the hot melt block together to form a ring-shaped binding structure that is bound to the object being bound.

2. The strapping machine according to claim 1, characterized in that, The strapping conveyor assembly includes: A winding reel is used to hold strapping. Traction clamp; The traction shaft, together with the traction clamp, forms a strapping conveying space to drive the strapping to move; The first drive motor is connected to the traction shaft. When the drive traction shaft rotates in the first direction, it drives the strapping tape to be input into the strapping tape ring guide assembly from the clearance hole. When the drive traction shaft runs in the second direction, it drives the strapping tape to be pulled back from the clearance hole so that the strapping tape fits onto the object being strapped.

3. The strapping machine according to claim 1, characterized in that, The strapping machine also includes: The drive assembly disposed within the receiving cavity includes a drive shaft and a second drive motor connected to the drive shaft. The drive assembly also includes a guide cam, a positioning cam, a cutting cam, a hot melt cam, and a retraction cam sleeved on the drive shaft. The second drive motor is used to drive the drive shaft to rotate, thereby rotating the guide cam, positioning cam, cutting cam, hot melt cam, and retraction cam.

4. The strapping machine according to claim 3, characterized in that, The strapping ring guide assembly includes two separable ring guide components; The guide cam is used to drive the two annular guide rails to separate along the binding direction perpendicular to the strapping when rotating, so that the strapping can be detached from the annular guide rails. The strapping ring guide assembly further includes a first elastic element, which provides a first elastic restoring force to cause the two ring guide elements to fit together along a strapping direction perpendicular to the strapping.

5. The strapping machine according to claim 3, characterized in that, The strapping machine also includes a first sensor, and the positioning cam includes a positioning structure. The first sensor is used to detect the positioning structure.

6. The strapping machine according to claim 3, characterized in that, The cutting assembly also includes a cutting linkage, and the cutting cam is used to drive the cutting linkage when rotating, thereby driving the cutting component to cut the strapping.

7. The strapping machine according to claim 3, characterized in that, The hot melt assembly also includes a lifting assembly located within the receiving cavity and connected to the hot melt block. The hot melt cam is used to drive the lifting assembly to move toward the abutment block when rotated, so that the hot melt block abuts the strap against the abutment block.

8. The strapping machine according to claim 3, characterized in that, The retraction assembly also includes a pull member connected to the abutment block. The retraction cam is used to drive the pull member when rotating, so that the pull member can move the abutment block along the binding direction perpendicular to the strapping, thereby causing the abutment block to detach from the annular binding structure and the bound object. The retraction assembly further includes a second elastic element, which provides a second elastic restoring force to move the abutment block along a binding direction perpendicular to the strapping, thereby restoring the abutment block into the clearance hole.

9. The strapping machine according to claim 8, characterized in that, The placement platform is an elastic plate, and the placement platform and the abutment block are spaced apart so that after the abutment block moves away from the annular binding structure, the placement platform lifts the bound object.

10. The strapping machine according to claim 1, characterized in that, The strapping machine also includes a second sensor, which is disposed on the placement platform and is used to detect the object being strapped.

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