Strapping Machine

Abstract

The present invention discloses a strapping machine, comprising: a middle frame, a bow frame, a belt clamping mechanism, an operating handle, and a needle groove, wherein the belt clamping mechanism comprises a support plate, a clamping plate rotatable relative to the support plate, a locking component, and a transmission rod, wherein the rotation center of the clamping plate is located at the rear thereof, and an elastic component continuously applies force to the clamping plate so that the front part of the clamping plate has a movement tendency to rotate toward the support plate, and the strapping machine can strap the objects to be strapped by alternately performing clamping action and binding action, and wherein a trigger mechanism is hinged on the middle frame, and the trigger mechanism is installed to match the belt clamping mechanism in a manner linked to the needle groove.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural production bundling tools, in particular to a bundling machine. Background Art

[0002] When planting crops such as tomatoes, grapes, and kiwis, we usually need to fix the vines or branches of the plants on bamboo racks or wires to guide their growth or assist in fruiting, thereby increasing crop yield and quality.

[0003] The traditional solution is to use ropes or cloth strips to tie them one by one. This method is inefficient and easily damages the plants, and cannot meet the needs of large-scale planting and production. Currently, tying machines (also called branch tying machines) are commonly used to tie and fix the plants.

[0004] For example, the Chinese utility model patent with the authorization announcement number CN211210728U discloses a branch binding machine, which mainly includes a binding strap clamping device, a bow frame, a handle, a frame, a needle box, and a binding strap box. It is characterized in that the binding strap clamping device comprises a machine box, a positioning plate, a pressing strap needle, and a forming anvil; the positioning plate is hinged in the machine box cavity, and a spring is provided on the positioning plate to make it have a tendency to rotate in the counterclockwise direction; the pressing strap needle is hinged in the machine box cavity, and a torsion spring is also provided on the pressing strap needle to make it have a tendency to rotate in the counterclockwise direction; the positioning plate matches the pressing strap needle; and a collision block is also provided on the frame, and the collision block matches the pressing strap needle.

[0005] Its advantages are: simple structure, high degree of automation, labor-saving and light, the blade is not easy to be damaged and is firmly fixed and easy to replace, and it can avoid damaging the crop branches during the branch tying operation.

[0006] The disadvantage is that the structure of the clamping mechanism is relatively complex, and the driving force required for binding is relatively large, the operation feels heavy, and it is easy to get tired after long-term use.

[0007] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a strapping machine which has the characteristics of simple structure, ingenious layout, light hand feel, etc. Summary of the invention

[0008] In order to achieve the above object, the present invention discloses a strapping machine, which has the following characteristics:

[0009] (1) The strapping machine comprises: a middle frame, which can pull out a strap from the front end; a bow frame, which is installed to be rotatable relative to the middle frame; a strap clamping mechanism, which is installed at the front end of the bow frame and can clamp the end of the strap; a binding mechanism, which includes a needle groove hinged to the middle frame at the rear end, a needle mold installed at the front end of the bow frame, and a pin plate fixed at the front end of the middle frame and corresponding to the needle groove and the needle mold; a cutter installed at the front of the middle frame and arranged in parallel with the pin plate; and a binding mechanism, which is executed by rotating the bow frame from an open position relative to the middle frame in a closed direction to a predetermined position and then returning to the open position. The belt clamping mechanism clamps and pulls out the end of the belt from the front end of the middle frame, and after the bow frame completes the clamping action any time, during the process of rotating from the open position to the closed position relative to the middle frame in the closing direction, the binding mechanism binds the combined parts of the belt and the cutter cuts the belt. The bundled object can be bundled by alternately performing the clamping action and the binding action. A trigger mechanism is hinged on the middle frame, and the trigger mechanism is installed to match the clamping mechanism in a manner linked to the needle groove.

[0010] (2) In addition to the feature described in (1) above, the strapping machine is further characterized in that when the strapping machine performs the clamping action and the binding action, the trigger mechanism applies force to the strap clamping mechanism at different locations.

[0011] (3) In addition to the features described in (2) above, the strapping machine is further characterized in that the strap clamping mechanism includes a support plate, a locking member and a clamping plate that can rotate between a standby position and a clamping position, and an elastic member applies force to the clamping plate so that the clamping plate has a tendency to rotate from the standby position to the clamping position; a collision block is provided on the clamping plate, and the trigger mechanism can apply force to the collision block to rotate the clamping plate from the clamping position to the standby position, and the locking member can apply force to the clamping plate that reaches the standby position to lock it in the standby position.

[0012] (4) In addition to the features described in (3) above, the strapping machine is further characterized in that, when the strapping machine performs the binding action, the needle mold applies force to the rear end of the trigger mechanism through the needle groove, causing the front end of the trigger mechanism to rotate to a position corresponding to the collision block, and the trigger mechanism overcomes the force of the elastic component and applies force to the collision block, causing the clamping plate to rotate from the clamping position to the standby position.

[0013] (5) In addition to the features described in (4) above, the strapping machine is further characterized in that the middle portion of the trigger mechanism is hinged on the middle frame, the rear end of the trigger mechanism corresponds to the front end of the needle groove, and the front end is a support block corresponding to the collision block, and a torsion spring applies force to the trigger mechanism so that it has a tendency to rotate in the clockwise direction, and a top block is also provided in the middle portion of the trigger mechanism; when the strapping machine performs the clamping action, the top block applies force to the locking member so that it rotates to release the lock on the clamping plate, and when the strapping machine performs the binding action, the front end of the needle groove applies force to the trigger mechanism so that it rotates in the counterclockwise direction by a certain angle so that the position of the top block and the locking member are offset.

[0014] (6) In addition to the features described in (5) above, the strapping machine is further characterized in that the front portion of the clamping plate matches the support plate, the rear portion of the clamping plate has a groove, and the locking member has a non-return pawl corresponding to the groove. When the non-return pawl and the groove are in meshing state, the non-return pawl overcomes the force of the elastic component and applies force to the rear portion of the clamping plate to lock the clamping plate in the standby position. The locking member also includes a transmission rod hinged thereto, and the lower end of the transmission rod matches the upper end of the top block.

[0015] After adopting the above structure, the present invention has the following advantages compared with the prior art:

[0016] It has the characteristics of simple structure, ingenious layout and light operation feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a front view of the strapping machine, showing the bow frame in the open position.

[0019] Figure 2 It is the front view of the strapping machine and is a cross-sectional view of the bow frame reaching the predetermined position.

[0020] Figure 3 It is a front view of the strapping machine and a cross-sectional view of the bow frame in the closed position.

[0021] Figure 4 It is an enlarged partial cross-sectional view near the front end of the strapping machine, showing a state where the bow frame reaches a predetermined position.

[0022] Figure 5 It is an enlarged partial cross-sectional view near the front end of the strapping machine, showing the bow frame reaching the closed position.

[0023] Figure 6 It is a schematic diagram of the structure of the belt clamping mechanism, which is a diagram of the state in which the belt clamping plate is opened relative to the support plate.

[0024] Figure 7 It is a schematic diagram of the structure of the belt clamping mechanism, which is a diagram of the state in which the clamping plate and the support plate are engaged.

[0025] Figure 8 It is a three-dimensional diagram of the needle groove.

[0026] Fig. 9 It is a three-dimensional picture of the center frame.

[0027] Fig.10 It is the front view of the support plate, clamping plate, locking component and trigger mechanism.

[0028] Fig.11 It is a three-dimensional diagram of the support plate, the clamping plate, the locking member, and the trigger mechanism. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. However, the strapping machine provided by the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing the embodiments is to make the disclosure of the strapping machine more thorough and comprehensive.

[0030] like Figure 1 As shown, a strapping machine provided in one embodiment of the present invention comprises a middle frame 1 with a straight "U"-shaped cross section, a bow frame 2 with an arc-shaped rear end hinged on the middle frame 1, a belt clamping mechanism 3 arranged at the front end of the bow frame 2, and an operating handle 4 hinged to the bow frame 2 in an "x" shape.

[0031] A transverse axis 11 perpendicular to the middle frame 1 is provided near the middle of the middle frame 1. The front end of the operating handle 4 has a hook 41 hung on the transverse axis 11. A tension spring (omitted in the figure) is provided at the rear of the middle frame 1 and the bow frame 2 to continuously apply force so that the front parts of the middle frame 1 and the bow frame 2 have a movement tendency to separate from each other. In this way, when there is no external force, the bow frame 2 is kept in the open position relative to the middle frame 1. Figure 1 when force is applied by squeezing the operating handle 4 and the rear portion of the middle frame 1, the bow frame 2 rotates relative to the middle frame 1, and the front portions thereof move closer to each other until they can no longer rotate, that is, they reach the position as shown in FIG. Figure 3 Shown in closed position.

[0032] like Figure 1As shown, the belt clamping mechanism 3 is installed at the front of the bow frame 2, combined with Figures 4 to 7 and Fig.10 , 11 The belt clamping mechanism 3 includes a support plate 31 installed in a fixed manner, a locking member 32 and a clamping plate 33 installed in a rotatable manner, and the locking member 32 also includes a transmission rod 323 hinged thereto; the front portion of the clamping plate 33 matches the support plate 31, has a collision block 331 in the middle, has a groove 332 in the rear, and has an elastic component 34 to apply force to the clamping plate 33, so that the front portion of the clamping plate 33 has a tendency to rotate toward the support plate 31; the locking member 32 has a check pawl 321 matching the groove 332, and has a compression spring 322 to apply force downward from the top of the locking member 32, so that the locking member 32 has a tendency to rotate toward the clamping plate 33.

[0033] When the non-return pawl 321 and the groove 332 are in meshing state, as shown in FIG. Figure 4 , 6 As shown, the non-return pawl 321 overcomes the force of the elastic member 34, so that the front end of the clamping plate 33 and the support plate 31 remain in a separated state. At this time, the position of the clamping plate 33 is the standby position; if the locking member 32 is Figure 6 The position shown in the figure is rotated clockwise by a certain angle, the non-return pawl 321 is out of engagement with the groove 332, and the front part of the clamping plate 33 is rotated from the standby position toward the support plate 31 under the action of the elastic member 34 until it is pressed onto the support plate 31. Figure 7 As shown, the position of the clamping plate 33 is the clamping position.

[0034] Combination Figure 1 , 8 9. The binding mechanism includes a needle groove 5 for storing binding needles, which is coaxially hinged to the bow frame 2 at the rear and has a linear shape. The needle groove 5 is located below the horizontal axis 11 in the "U"-shaped section of the middle frame 1.

[0035] A spring (omitted from view) is provided between the lower surface of the needle groove 5 and the middle frame 1 to make the needle groove 5 have a tendency to rotate counterclockwise relative to the middle frame 1. In this way, the upper surface of the needle groove 5 abuts against the horizontal axis 11, and there is a certain movable space between the lower surface of the needle groove 5 and the bottom of the middle frame 1. When the front end of the needle groove 5 receives a downward force, it can rotate clockwise relative to the middle frame 1. After the force disappears, under the action of the spring (omitted from view), the needle groove 5 rotates counterclockwise relative to the middle frame 1 until its upper surface abuts against the horizontal axis 11.

[0036] Combination Figure 1 , 4, 5, 8, a needle outlet 51 is provided at the front end of the needle slot 5, a ejector plate 52 is provided at a position corresponding to the needle outlet 51 on the middle frame 1, a needle mold 53 is provided at the front end of the bow frame 2 adjacent to the support plate 31, the position of the needle mold 53 corresponds to the positions of the needle outlet 51 and the ejector plate 52, the ejector plate 52 can eject the binding needle installed in the needle slot 5 from the needle outlet 51 and press it onto the needle mold 53 to complete the binding (the principle is the same as the working principle of a common stapler).

[0037] Combination Figure 4 , 5 , 10, 11, the trigger mechanism 6 is formed in an arc shape as a whole, and its middle part is hinged to the front end of the middle frame 1. The front end of the trigger mechanism 6 is a support block 61, and the support block 61 matches the collision block 331 on the clamping plate 33. The rear end of the trigger mechanism 6 is a pair of connecting rods 62 corresponding to the front end of the needle groove 5. There is also a top block 63 matching the transmission rod 323 at the upper position of the trigger mechanism 6 near the middle rotation center, and a torsion spring (omitted in the figure) applies force to the trigger mechanism to make it have a movement tendency to rotate in the clockwise direction.

[0038] A cutter 12 is also provided at the front end of the middle frame 1 and is arranged parallel to the ejector plate 52. The position of the cutter 12 corresponds to the support plate 31. A tape outlet 13 is provided on the middle frame 1 in front of the cutter 12 and its guide direction is parallel to the cutter 12. The tape outlet 13 can guide the tape from the bottom of the middle frame 1 to the top of the middle frame 1. The position of the tape outlet 13 corresponds to the clamping plate 33 and the support plate 31. When the front end of the clamping plate 33 is kept separated from the support plate 31, when the front end of the bow frame 2 is rotated to be close to the front end of the middle frame 1, the end of the tape guided out from the tape outlet 13 is sent into the opening formed by the front end of the clamping plate 33 and the support plate 31 as the bow frame 2 and the middle frame 1 approach each other.

[0039] Figure 1 This is the initial state of the strapping machine before strapping, where the bow frame 2 is in the open position relative to the middle frame 1. Figure 6 is with Figure 1 , the clamping plate 33 is in the standby position, its front end is kept separated from the support plate 31, and the non-return pawl 321 on the locking member 32 is in meshing state with the groove 332 on the clamping plate 33.

[0040] Depend on Figure 1In the state shown, by squeezing the operating handle 4 and the rear part of the middle frame 1 to apply force, the bow frame 2 rotates clockwise relative to the middle frame 1. When the needle mold 53 moves to the needle outlet 51 close to the front end of the needle groove 5 as the bow frame 2 rotates (there is no interaction between the needle mold 53 and the needle outlet 51), the transmission rod 323 moves with the rotation of the bow frame 2 until it collides with the top block 63 on the trigger mechanism 6. The top block 63 transmits the force of the compression spring 322 through the transmission rod 323 to apply force to the locking member 32, so that the locking member 32 rotates a certain angle in the clockwise direction, and the non-return pawl 322 and the groove 332 withdraw from the meshing. When the strap is in the closed state, the locking member 32 releases the lock on the clamping plate 33, and the clamping plate 33 is rotated in the clockwise direction by the force of the elastic member 34 until its front end is pressed onto the support plate 31, that is, the clamping plate 33 is rotated from the standby position to the clamping position, and the end of the strap discharged from the strap outlet 13 is pressed onto the support plate 31 by the front end of the clamping plate 33, and the end of the strap is clamped by the strap clamping mechanism 3. Then the operating handle 4 is released, and the bow frame 2 starts to rotate in the counterclockwise direction under the force of the spring (omitted in the view) until it returns to the open position. In this way, a section of strapping strap is formed between the strap clamping mechanism 3 and the front end of the bow frame 2.

[0041] As mentioned above, when the strapping machine is in the initial state, the bow frame 2 is rotated by squeezing the operating handle 4 until the lower end of the transmission rod 323 interacts with the top block 63, thereby allowing the clamping plate 33 to rotate from the standby position to the clamping position and clamp the belt guided out from the belt outlet 13. The position of the bow frame 2 is the predetermined position; further, when the strapping machine is in the initial state, the bow frame 2 is rotated to the predetermined position by squeezing the operating handle 4, and then the operating handle 4 is released to return the bow frame 2 to the open position from the predetermined position, thereby forming a section of belt for strapping at the front end of the bow frame 2 and the middle frame 1. This complete operation process is the clamping action. It should be noted that, in the process of executing the clamping action, when the bow frame 2 rotates from the open position to the predetermined position, no interaction force is generated between the needle mold 53 and the needle outlet 51 (i.e., the front end of the needle groove), the needle groove 5 does not rotate relative to the middle frame 1, and the top block 63 interacts with the transmission rod 323 (i.e., with the clamping mechanism). Since the top block 63 is above the rotation center of the trigger mechanism 6, the trigger mechanism 6 does not rotate relative to the middle frame 1.

[0042] In addition, during the clamping action, when the bow frame 2 reaches the predetermined position, the clamping plate 33 rotates from the standby position to the clamping position, and the collision block 331 follows the movement trajectory of the rotation of the clamping plate 33 and is closer to the upper surface of the support block 61, but they do not overlap, that is, the collision block 331 does not interact with the support block 61. Therefore, during the clamping action, the trigger mechanism only applies force to the transmission rod 323 (with the clamping mechanism) through the top block 63.

[0043] After completing the clamping action, the bundled object is pressed against the strapping belt between the bow frame 2 and the front end of the middle frame 1 in a direction perpendicular to the rotation plane of the bow frame 2, and guided into the arc of the bow frame 2. Then, the operating handle 4 is squeezed again to make the bow frame 2 start to rotate from the open position, so that the strapping belt bypasses the bundled object and gradually surrounds the bundled object until the bow frame 2 reaches the closed position, and the joint part of the belt is pressed by the needle mold 53 to the needle outlet 51 at the front end of the needle groove 5.

[0044] The process of operating the bow frame 2 to rotate from the open position to the closed position after completing the clamping action can actually be divided into two stages: the first stage: the bow frame 2 rotates from the open position to the predetermined position, the needle mold 53 moves with the bow frame 2 to approach the needle outlet 51, and the transmission rod 323 interacts with the top block 63. After the clamping action is completed, the clamping plate 33 has been rotated from the standby position to the clamping position, so the position of the clamping plate 33 will not change at this time.

[0045] Then comes the second stage. After the bow frame 2 reaches the predetermined position, it continues to rotate in the clockwise direction. The needle mold 53 begins to apply force to the needle outlet 51 (i.e., the front part of the needle groove 5). The needle groove 5 begins to rotate with the rotation of the bow frame 2. On the one hand, the ejector plate 52 fixed on the middle frame 1 enters the needle outlet 51 and squeezes the binding needle pre-installed in the needle groove 5 toward the needle mold 53. Since the binding part of the belt is pressed on the needle outlet 51 by the needle mold 53, the binding needle pushed upward by the ejector plate 52 presses the binding part of the belt under the action of the needle mold 53. The strips are bound together (the binding process is similar to the binding action of a common stapler), and at the same time, due to the action of the cutter 12, the strip led out from the strip outlet 13 is cut as the needle mold 53 presses down; on the other hand, as the needle groove 5 rotates, the front end of the needle groove 5 applies force downward to a pair of connecting rods 62 (i.e., the rear end of the trigger mechanism) on the trigger mechanism 6, so that the trigger mechanism 6 rotates a certain angle in the counterclockwise direction, and as the trigger mechanism 6 rotates, the positions of the support block 61 (i.e., the front end of the trigger mechanism) and the top block 63 change: the top block 63 (trigger mechanism) originally corresponding to the lower end position of the transmission rod 323 is staggered with the transmission rod 323 (locking member) due to the rotation of a certain angle in the counterclockwise direction, and the interaction force between the top block 63 and the transmission rod 323 disappears. At the same time, as the support block 61 located at the front end of the trigger mechanism 6 rotates to the upper left, the collision block 331 originally close to the support block 61 begins to contact and interact with it, that is, the front end of the trigger mechanism 6 rotates to the position corresponding to the collision block 331 and contacts and An interaction is generated. As the bow frame 2 further rotates to the closed position, the support block 61 (trigger mechanism) overcomes the force of the elastic component 34 and applies force to the collision block 331, so that the clamping plate 33 rotates from the clamping position to the standby position. When the clamping plate 33 reaches the standby position, the non-return pawl 321 on the locking member 32 and the groove 332 on the clamping plate 33 enter into a meshing state, and the non-return pawl 321 (locking member) applies force to the groove 332 (clamping plate), thereby locking the clamping plate 33 that has reached the standby position in the standby position.

[0046] The operating handle 4 is released again, and the bow frame 2 returns to the open position again, thus completing one bundling.

[0047] After completing the above-mentioned clamping action, the bundled object is pressed against the belt and guided into the arc of the bow frame 2. Then, by squeezing the operating handle 4, the bow frame 2 is rotated from the open position to the closed position to bind and cut the combined parts of the belt. Then, the operating handle 4 is released to return the bow frame 2 to the open position. This action process is the binding action.

[0048] After the binding action is completed, the bow frame 2 returns to the open position, the clamping plate 33 rotates to the standby position, and the strapping machine enters the preparation state before the next strapping, and the next strapping can be performed by alternately performing the clamping action and the binding action.

[0049] From the above description of the process of clamping action and binding action, it can be known that when performing the clamping action, the top block 34 on the trigger mechanism 6 matches the transmission rod 323 (with the clamping mechanism), and when performing the binding action, the trigger mechanism 6 is linked with the needle groove 5 through a pair of connecting rods 62 so that the support block 31 and the impact block 331 (with the clamping mechanism) are matched; when performing the clamping action and the binding action, the trigger mechanism 6 applies force to the transmission rod 323 and the impact block 331, i.e., different structures on the clamping mechanism 3, with the top block 34 and the support block 61 at different positions.

[0050] The above description is only a preferred embodiment of the present invention, and does not limit the scope of this patent. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A strapping machine comprising: a middle frame capable of pulling out a strap from a front end; An arch frame is installed to be rotatable relative to the middle frame; The operating handle is hinged to the bow frame in an "X" shape; A belt clamping mechanism, mounted at the front end of the bow frame, capable of clamping the end of the belt; The binding mechanism comprises a needle groove whose rear end is hinged on the middle frame, a needle mold installed at the front end of the bow frame, and an ejector piece fixed at the front end of the middle frame and corresponding to the needle groove and the needle mold; A cutter, mounted on the front of the middle frame and arranged parallel to the ejector plate; In the process that the bow frame rotates from the open position to the predetermined position in the closing direction relative to the middle frame and then returns to the open position, the belt clamping mechanism clamps and pulls out the end of the belt from the front end of the middle frame, and, After the bow frame completes the clamping action once, the bow frame performs the binding action of binding the joint part of the belt by the binding mechanism and cutting the belt by the cutter during the process of rotating from the open position to the closed position relative to the middle frame again. The objects to be bound can be bound by alternately performing the clamping action and the binding action. The strapping machine is characterized in that A trigger mechanism is hinged on the middle frame, and the trigger mechanism is installed to match the clamping mechanism in a manner of linkage with the needle slot; The middle part of the trigger mechanism is hinged to the front end of the middle frame. The front end of the trigger mechanism is a support block, which matches the impact block on the clamping plate. The rear end of the trigger mechanism is a pair of connecting rods corresponding to the front end of the needle groove. A torsion spring applies force to the trigger mechanism to make it have a tendency to rotate in the clockwise direction.

2. The strapping machine according to claim 1, characterized in that: It also includes an operating handle hinged to the bow frame in an "X" shape. When the strapping machine performs the clamping action and the binding action, the trigger mechanism applies force to the belt clamping mechanism at different locations.

3. The strapping machine according to claim 2, characterized in that: The belt clamping mechanism includes a supporting plate, a locking member and a clamping plate that can rotate between a standby position and a clamping position. An elastic member applies force to the clamping plate so that the clamping plate has a movement tendency to rotate from the standby position to the clamping position. A collision block is provided on the clamping plate, and the trigger mechanism can apply force to the collision block to rotate the clamping plate from the clamping position to the standby position. The locking member can apply force to the clamping plate that reaches the standby position to lock it in the standby position.

4. The strapping machine according to claim 3, characterized in that: When the strapping machine performs the binding action, the needle mold applies force to the rear end of the trigger mechanism through the needle groove, so that the front end of the trigger mechanism rotates to a position corresponding to the collision block, and the trigger mechanism overcomes the force of the elastic component and applies force to the collision block, so that the clamping plate rotates from the clamping position to the standby position.

5. The strapping machine according to claim 4, characterized in that: A top block is also provided in the middle of the trigger mechanism; When the strapping machine performs the clamping action, the top block applies force to the locking member to make it rotate so as to release the lock on the clamping plate. When the strapping machine performs the binding action, the front end of the needle groove applies force to the trigger mechanism to make it rotate a certain angle in the counterclockwise direction so as to stagger the positions of the top block and the locking member.

6. The strapping machine according to claim 5, characterized in that: The front part of the clamping plate matches the supporting plate, the rear part of the clamping plate has a groove, and the locking member has a non-return pawl corresponding to the groove. When the non-return pawl and the groove enter into a meshing state, the non-return pawl overcomes the force of the elastic component and applies force to the rear part of the clamping plate to lock the clamping plate in the standby position. The locking member also includes a transmission rod hinged thereto, and the lower end of the transmission rod matches the upper end of the top block.

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