CN115299290A - Binding machine - Google Patents

Abstract

The invention discloses a binding machine, comprising: the strapping machine comprises a middle frame, a bow frame, a strap clamping mechanism, an operating handle and a needle groove, and is characterized in that the strap clamping mechanism comprises a supporting plate, a strap clamping plate capable of rotating relative to the supporting plate, a locking component and a transmission rod, wherein the rotation center of the strap clamping plate is positioned at the rear part of the strap clamping plate, an elastic component continuously applies force to the strap clamping plate, the front part of the strap clamping plate has a movement trend towards the rotation of the supporting plate, the strapping machine can strap a strapped object by alternately executing clamping action and binding action, and the strapping machine is characterized in that a triggering mechanism is hinged on the middle frame and is installed to be matched with the strap clamping mechanism in a mode of linkage with the needle groove.

Description

Binding machine

Technical Field

The invention relates to the technical field of bundling tools in agricultural production, in particular to a bundling machine.

Background

When planting crops such as tomatoes, grapes and kiwi fruits, it is usually necessary to fix vines or branches of plants on bamboo stands or iron wires to guide the growth or assist in bearing fruits, so as to improve the yield and quality of the crops.

The traditional solution method is that ropes or cloth strips are fixed by a mode of binding one by one, the mode is low in efficiency, plants are easy to damage, the requirement of large-scale planting production cannot be met, and the plants are bound and fixed by a common binding machine (also called a branch binding machine) at present.

For example, chinese utility model patent with publication number CN211210728U discloses a branch binding machine, which mainly comprises a binding band clamping device, a bow frame, a handle, a frame, a needle box and a binding band box. The device is characterized in that the binding band clamping device comprises a machine box, a positioning plate, a band pressing needle and a forming anvil; the positioning plate is hinged in the case cavity, and a spring which enables the positioning plate to have a tendency of rotating in an anticlockwise direction is arranged on the positioning plate; the belt pressing needle is hinged in the case cavity, and a torsion spring which enables the belt pressing needle to have a tendency of rotating towards the counterclockwise direction is further arranged on the belt pressing needle; the positioning plate is matched with the pinch pin; the frame is also provided with a collision block which is matched with the press belt needle.

The advantages are that: simple structure, degree of automation is higher, and is laborsaving light, and the blade is not fragile and fixed firm, be liable to change, can avoid hanging injury crop branch simultaneously when tying up a branch operation.

The novel binding machine has the disadvantages that the structure with the clamping mechanism is complex, the driving force required when binding action is executed is large, the operation hand feeling is heavy, and the novel binding machine is easy to fatigue after being used for a long time.

Aiming at the defects in the prior art, the invention aims to provide a binding machine which has the characteristics of simple structure, ingenious layout, light hand feeling and the like.

Disclosure of Invention

In order to achieve the above object, the present invention describes a binding machine having the following features:

(1) The binding machine has: a middle frame, which can pull out the belt from the front end; a bow mounted for rotation relative to the mid-frame; a band holding mechanism which is mounted on the front end of the bow frame and can hold the end of the band; the binding mechanism comprises a needle groove with the rear end hinged on the middle frame, a needle die arranged at the front end part of the bow frame, and a needle ejecting sheet which is fixed at the front end part of the middle frame and corresponds to the needle groove and the needle die; the cutter is arranged at the front part of the middle frame and is parallel to the thimble sheet; the binding device is characterized in that a clamping action of clamping and pulling out an end portion of the band from a front end portion of the middle frame by the band clamping mechanism is performed during the process that the bow is rotated to a predetermined position in a closing direction relative to the middle frame from an open position and then returned to the open position, and a binding action of binding a binding portion of the band by the binding mechanism and cutting off the band by the cutter is performed during the process that the bow is rotated to the closed position again in the closing direction relative to the middle frame from the open position after completing the clamping action any one time, and the bound object can be bound by alternately performing the clamping action and the binding action, and a trigger mechanism is hinged to the middle frame and installed to be matched with the clamping mechanism in a manner of being interlocked with the needle groove.

(2) In addition to the feature described in the above (1), the strapping machine is characterized in that the trigger mechanism applies the force to the belt clamping mechanism at different positions when the strapping machine performs the clamping operation and the binding operation.

(3) In addition to the feature described in (2) above, the strapping machine is characterized in that the strap clamping mechanism includes a support plate, a lock member, and a strap clamping plate rotatable between a standby position and a clamping position, and an elastic member urges the strap clamping plate to have a tendency to rotate from the standby position to the clamping position; the belt clamping plate is provided with a collision block, the trigger mechanism can enable the belt clamping plate to rotate from the clamping position to the standby position by applying force to the collision block, and the locking component can apply force to the belt clamping plate reaching the standby position so as to lock the belt clamping plate at the standby position.

(4) In addition to the feature described in (3), the binding machine is characterized in that, when the binding machine performs the binding operation, the needle die applies a force to the rear end of the trigger mechanism through the needle groove to rotate the front end of the trigger mechanism to a position corresponding to the striker, and the trigger mechanism applies a force to the striker against the biasing force of the elastic member to rotate the strap clamping plate from the clamping position to the standby position.

(5) In addition to the features described in (4), the strapping machine is further characterized in that the middle part of the trigger mechanism is hinged to the middle frame, the rear end of the trigger mechanism corresponds to the front end of the needle groove, the front end of the trigger mechanism is provided with a supporting block corresponding to the collision block, a torsion spring applies force to the trigger mechanism to enable the trigger mechanism to have a movement trend of rotating in the clockwise direction, and a top block is arranged in the middle part of the trigger mechanism; when the binding machine executes the clamping action, the top block applies force to the locking component to enable the locking component to rotate so as to release the locking of the clamping plate, and when the binding machine executes the binding action, the front end of the needle groove applies force to the trigger mechanism to enable the trigger mechanism to rotate a certain angle along the anticlockwise direction so as to enable the top block and the locking component to be staggered.

(6) In addition to the feature described in (5) above, the strapping machine is characterized in that the front portion of the strap holding plate is fitted to the support plate, the rear portion of the strap holding plate has a groove, the locking member has a non-return pawl corresponding to the groove, the non-return pawl applies a force to the rear portion of the strap holding plate against the urging force of the elastic member to lock the strap holding plate in the standby position when the non-return pawl is brought into engagement with the groove, and the locking member is constituted by a transmission lever hinged thereto, the lower end of the transmission lever being fitted to the upper end of the top block.

After adopting the structure, compared with the prior art, the invention has the advantages that:

simple structure, ingenious layout and light hand feeling in use and operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a front view of the binding machine, showing the bow in an open position.

Fig. 2 is a front view of the binding machine, which is a sectional view of the bow frame in a state of reaching a predetermined position.

Fig. 3 is a front view of the strapping machine, in cross-section with the bow in a closed position.

Fig. 4 is an enlarged partial sectional view of the vicinity of the front end of the binding machine, showing the bow in a predetermined position.

Fig. 5 is an enlarged partial sectional view of the vicinity of the front end of the binding machine, showing the bow in a closed position.

Fig. 6 is a schematic structural view of the belt clamping mechanism, which is a view showing a state in which the entrainment plate is opened with respect to the support plate.

Fig. 7 is a schematic structural view of the tape clamping mechanism, showing a state in which the tape clamping plate is engaged with the support plate.

Fig. 8 is a perspective view of the needle groove.

Fig. 9 is a perspective view of the middle frame.

FIG. 10 is a front view of the support plate, the clamping plate, the locking member, and the trigger mechanism.

Fig. 11 is a perspective view of the support plate, the clamping plate, the locking member, and the trigger mechanism.

Detailed Description

To further clarify the objects, aspects and advantages of the present invention, there will be described in detail hereinafter an embodiment of the invention with reference to the drawings, but the invention provides a strapping machine that can be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of making the disclosure more thorough and complete.

As shown in fig. 1, a binding machine according to an embodiment of the present invention includes a linear middle frame 1 having a U-shaped cross section, a bow 2 having an arc shape and a rear end portion hinged to the middle frame 1, a strap holding mechanism 3 provided at a front end portion of the bow 2, and an operating handle 4 hinged to the bow 2 in an x-shape.

A transverse shaft 11 perpendicular to the middle frame 1 is arranged near the middle part of the middle frame 1, a hook body 41 hung on the transverse shaft 11 is arranged at the front end of the operating handle 4, a tension spring (omitted from the drawing) is arranged at the rear parts of the middle frame 1 and the bow frame 2 for continuously applying force, so that the front parts of the middle frame 1 and the bow frame 2 have the moving tendency of being separated from each other, and therefore, when no external force is applied, the bow frame 2 is kept at an opening position relative to the middle frame 1, namely the opening position shown in figure 1; when force is applied by pressing the operating handle 4 and the rear part of the middle frame 1, the bow frame 2 rotates relative to the middle frame 1, and the front parts of the bow frame 2 are close to each other until the bow frame cannot rotate continuously, namely, the bow frame reaches the closed position shown in fig. 3.

As shown in fig. 1, the belt clamping mechanism 3 is installed at the front of the yoke 2, and in conjunction with fig. 4 to 7 and fig. 10 and 11, the belt clamping mechanism 3 includes a support plate 31 fixedly installed, a locking member 32 rotatably installed, and a belt clamping plate 33, the locking member 32 further including a transmission rod 323 hinge-connected thereto; the front part of the clamping plate 33 is matched with the supporting plate 31, the middle part is provided with a collision block 331, the rear part is provided with a groove 332, and an elastic part 34 applies force to the clamping plate 33, so that the front part of the clamping plate 33 has the tendency of rotating towards the supporting plate 31; the locking member 32 has a non-return detent 321 matching the recess 332 and is biased downwardly by a compression spring 322 from above the locking member 32 to provide a tendency for the locking member 32 to rotate towards the entrainment plate 33.

When the non-return pawl 321 is engaged with the groove 332, as shown in fig. 4 and 6, the non-return pawl 321 overcomes the acting force of the elastic member 34 to keep the front end of the tape clamping plate 33 and the support plate 31 in a separated state, and the position of the tape clamping plate 33 is the standby position; if the locking member 32 is rotated clockwise by a certain angle from the position shown in fig. 6, the check pawl 321 comes out of engagement with the recess 332, and the front portion of the clamping plate 33 is rotated from the standby position toward the support plate 31 by the urging force of the elastic member 34 until it is pressed against the support plate 31, as shown in fig. 7, where the clamping plate 33 is located, i.e., the clamping position.

Referring to fig. 1, 8 and 9, the binding mechanism includes a linear needle groove 5 for storing binding needles, the rear part of which is hinged to the middle frame 1 coaxially with the bow 2, and the needle groove 5 is located below a horizontal shaft 11 in the U-shaped cross section of the middle frame 1.

A spring (omitted from the drawing) is arranged between the lower surface of the needle groove 5 and the middle frame 1, so that the needle groove 5 has a movement tendency of rotating towards the counterclockwise direction relative to the middle frame 1, the upper surface of the needle groove 5 is abutted against the transverse shaft 11, a certain moving space is formed 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 downward acting force, the needle groove 5 can rotate towards the clockwise direction relative to the middle frame 1, and after the acting force disappears, under the acting force of the spring (omitted from the drawing), the needle groove 5 rotates towards the counterclockwise direction relative to the middle frame 1 until the upper surface of the needle groove abuts against the transverse shaft 11.

Referring to fig. 1, 4, 5 and 8, a needle outlet 51 is provided at the front end of the needle slot 5, a needle ejecting 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 a position adjacent to the support plate 31 at the front end of the bow frame 2, the position of the needle mold 53 corresponds to the positions of the needle outlet 51 and the needle ejecting plate 52, and the needle ejecting plate 52 can eject the binding needle installed in the needle slot 5 from the needle outlet 51 and press the binding needle onto the needle mold 53 to complete binding (the principle is the same as that of a conventional stapler).

With reference to fig. 4, 5, 10 and 11, the triggering mechanism 6 is integrally formed in an arc shape, the middle part of the triggering mechanism 6 is hinged to the front end of the middle frame 1, the front end of the triggering mechanism 6 is provided with a supporting block 61, the supporting block 61 is matched with a striking block 331 on the clamping plate 33, the rear end of the triggering mechanism 6 is provided with a pair of connecting rods 62 corresponding to the front end of the needle slot 5, a top block 63 matched with the transmission rod 323 is further arranged above the position of the triggering mechanism 6 close to the middle rotation center, and a torsion spring (illustration is omitted) applies force to the triggering mechanism to enable the triggering mechanism to have a movement trend of rotating clockwise.

The front end of the middle frame 1 is also provided with a cutter 12 which is arranged in parallel with the thimble sheet 52, the position of the cutter 12 corresponds to the support plate 31, a tape outlet 13 which is parallel with the cutter 12 in the leading-out direction is arranged at the front side of the cutter 12 on the middle frame 1, the tape outlet 13 can lead the tape from the lower part of the middle frame 1 to the upper part 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 bow frame 2 rotates to be close to the front end of the middle frame 1 under the state that the front end of the clamping plate 33 is kept separated from the support plate 31, the end part of the tape led out by the tape outlet 13 is sent into an opening formed by the front end of the clamping plate 33 and the support plate 31 along with the mutual closing of the bow frame 2 and the middle frame 1.

Fig. 1 is an initial state of the binding machine before binding, in which the bow 2 is located at an open position with respect to the middle frame 1, and fig. 6 is a structural view of the strap gripping mechanism corresponding to the state of fig. 1, the strap holding plate 33 is at a standby position, the front end thereof is kept away from the support plate 31, and the check pawl 321 of the lock member 32 is engaged with the recess 332 of the strap holding plate 33.

From the state shown in fig. 1, when the needle mold 53 moves to the needle outlet 51 near the front end of the needle groove 5 (no interaction occurs between the needle mold 53 and the needle outlet 51) with the rotation of the bow 2, the transmission rod 323 collides with the ejector block 63 on the trigger mechanism 6 with the rotation of the bow 2, the ejector block 63 applies force to the locking member 32 against the force of the compression spring 322 via the transmission rod 323, the locking member 32 rotates clockwise by a certain angle, the check pawl 322 is disengaged from the groove 332, the locking member 32 unlocks the strap holder 33, the strap holder 33 is rotated clockwise by the force of the elastic member 34 until the front end thereof is pressed against the support plate 31, i.e., the strap holder 33 rotates from the standby position to the holding position, the end of the strap guided out from the strap outlet 13 is pressed by the front end of the strap holder 33 against the support plate 31, the end of the strap is pressed by the clamp 3, and the strap holder is opened to the clamping position (the clamping mechanism is opened) until the strap holder 2 is released, and the strap holder 2 rotates counterclockwise.

When the strapping machine is in an initial state, the operating handle 4 is held and pressed, the bow frame 2 rotates until the lower end of the transmission rod 323 and the ejector block 63 interact, and the belt clamping plate 33 rotates from the standby position to the clamping position to clamp the belt led out from the belt outlet 13, wherein the position of the bow frame 2 is the preset position; further, when the binding machine is in an initial state, the bow frame 2 is rotated to a preset position by holding and pressing the operating handle 4, then the operating handle 4 is released, the bow frame 2 is returned to an opening position from the preset position, and a section of belt for binding is formed at the front ends of the bow frame 2 and the middle frame 1, and the whole operation process is the clamping action. In the process of performing the clamping operation, when the bow 2 is rotated 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 portion of the needle groove), the needle groove 5 is not rotated with respect to the middle frame 1, the top block 63 interacts with the transmission lever 323 (i.e., the belt clamping mechanism), and the top block 63 is located above the rotation center of the trigger mechanism 6, so that the trigger mechanism 6 is not rotated with respect to the middle frame 1.

In addition, when the bow 2 reaches a predetermined position during the clamping operation, the clamping plate 33 rotates from the standby position to the clamping position, the movement track of the striking block 331 following the rotation of the clamping plate 33 is relatively close to the upper surface of the supporting block 61, but does not overlap, that is, the striking block 331 does not interact with the supporting block 61, so that the trigger mechanism only applies force to the transmission rod 323 (the belt clamping mechanism) through the top block 63 during the clamping operation.

After the clamping operation is completed, the object to be bound is pressed against the strap for binding between the bow 2 and the front end of the middle frame 1 in the direction perpendicular to the rotation plane of the bow 2 and is guided into the arc bend of the bow 2, then the operating handle 4 is pressed again to rotate the bow 2 from the open position, so that the strap for binding passes around the object to be bound and gradually surrounds the object to be bound until the bow 2 reaches the closed position, and the joint part of the strap is pressed onto the needle outlet 51 at the front end of the needle groove 5 by the needle mold 53.

The process of operating the pivoting of the bow 2 from the open position to the closed position after the clamping action is completed can in fact be divided into two phases: the first stage is as follows: the bow frame 2 rotates to a preset position from the opening position, the needle die 53 moves to be close to the needle outlet 51 along with the bow frame 2, the transmission rod 323 and the ejector block 63 interact, and after the clamping action is completed, the clamping plate 33 rotates to the clamping position from the standby position, so that the position of the clamping plate 33 cannot be changed.

Then, in the second stage, the bow frame 2 continues to rotate clockwise after reaching the predetermined position, the needle die 53 starts to apply force to the needle outlet 51 (i.e., the front part of the needle groove 5), the needle groove 5 starts to rotate along with the rotation of the bow frame 2, on one hand, the top needle sheet 52 fixed on the middle frame 1 enters the needle outlet 51, the binding needles pre-installed in the needle groove 5 are pressed to the needle die 53, the binding parts of the tape are bound together under the action of the needle die 53 as the binding parts of the tape are pressed on the needle outlet 51 by the needle die 53, the binding needles upwardly ejected by the top needle sheet 52 bind the binding parts of the tape together (the binding process is similar to the binding action of a common stapler), and simultaneously, the tape guided out from the tape outlet 13 is cut off along with the action of pressing down by the needle die 53 under the action of the cutter 12; on the other hand, as the needle groove 5 rotates, the front end of the needle groove 5 applies a downward force to a pair of links 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 supporting 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 rotates a certain angle in the counterclockwise direction to be staggered with the transmission rod 323 (locking member), the interaction force between the top block 63 and the transmission rod 323 disappears, meanwhile, the supporting 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 supporting block 61 starts to contact with and interact with the same, namely, the front end of the trigger mechanism 6 rotates to the position corresponding to the collision block 331 and contacts with and interacts with the same, as the bow 2 further rotates to the closed position, the supporting block 61 (trigger mechanism) overcomes the action force of the elastic part 34 to apply force to the collision block 331, so that the clamping plate 33 rotates to the standby position from the clamping 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 the engaged state, the non-return pawl 321 (locking member) applies force to the groove 332 (clamping plate), and the clamping plate 33 reaching the standby position is locked at the standby position.

The operating handle 4 is released again and the bow 2 is returned to the open position again, so that a strapping is completed.

After the clamping action is completed once, the bound object is abutted against the belt and guided into the arc bend of the bow frame 2, the bow frame 2 is rotated from the open position to the closed position by holding and pressing the operating handle 4 so as to bind and cut off the joint part of the belt, and then the operating handle 4 is released so that the action process of returning the bow frame 2 to the open position is the binding action.

After the stapling operation is completed, the bow frame 2 is returned to the open position, the clamp plate 33 is rotated to the standby position, and the binding machine enters a ready state before the next binding, and the next binding can be performed by alternately performing the clamping operation and the stapling operation.

As can be seen from the above description of the process of the clamping operation and the binding operation, when the clamping operation is performed, the top block 34 on the trigger mechanism 6 is matched with the transmission rod 323 (tape clamping mechanism), and when the binding operation is performed, the trigger mechanism 6 is linked with the needle groove 5 through the pair of links 62 so that the support block 31 is matched with the striking block 331 (tape clamping mechanism); when the clamping operation and the stapling operation are performed, the trigger mechanism 6 applies force to the transmission lever 323 and the striking block 331, i.e., the tape clamping mechanism 3, by different parts of the top block 34 and the supporting block 61.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention as described in the specification and the accompanying drawings, or directly applied to other related technical fields, are included in the scope of the present invention.

Claims (6)

1. A binding machine is provided with:

a middle frame capable of pulling out the belt from the front end part;

a bow mounted for rotation relative to the mid-frame;

a band holding mechanism which is mounted on the front end of the bow frame and can hold the end of the band;

the binding mechanism comprises a needle groove with the rear end hinged on the middle frame, a needle die arranged at the front end part of the bow frame, and a needle ejecting sheet which is fixed at the front end part of the middle frame and corresponds to the needle groove and the needle die;

the cutter is arranged at the front part of the middle frame and is parallel to the thimble sheet;

in a process in which the bow is rotated from an open position to a predetermined position in a closing direction with respect to the middle frame and then returned to the open position, a gripping action of gripping and pulling out an end portion of the belt from a front end portion of the middle frame by the belt gripping mechanism is performed, and,

the bow executes a binding operation of binding a binding portion of the tape by the binding mechanism and cutting the tape by the cutter in a process of rotating in a closing direction with respect to the middle frame from the open position to the closed position again after the clamping operation is completed any one time, and can bind the objects to be bound by alternately executing the clamping operation and the binding operation,

the strapping machine is characterized in that,

a trigger mechanism is hinged to the middle frame and is mounted to be matched with the clamping mechanism in a linkage manner with the needle groove.

2. The strapping machine in accordance with claim 1 wherein,

when the binding machine executes the clamping operation and the binding operation, the trigger mechanism applies force to the belt clamping mechanism at different positions.

3. The strapping machine in accordance with claim 2,

the belt clamping mechanism comprises a supporting plate, a locking member and a clamping plate which can rotate between a standby position and a clamping position, and an elastic component applies force to the clamping plate to enable the clamping plate to have a movement trend of rotating from the standby position to the clamping position; the trigger mechanism can rotate the clamping plate from the clamping position to the standby position by applying force to the striking block, and the locking component can apply force to the clamping plate reaching the standby position to lock the clamping plate at the standby position.

4. The strapping machine in accordance with claim 3,

when the binding machine executes the binding action, the needle die 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, the trigger mechanism overcomes the acting force of the elastic component to apply force to the collision block, and the belt clamping plate rotates to a standby position from the clamping position.

5. The strapping machine in accordance with claim 4,

the middle part 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, the front end of the trigger mechanism is a supporting block corresponding to the collision block, a torsion spring applies force to the trigger mechanism to enable the trigger mechanism to have a movement trend of rotating in the clockwise direction, and a top block is arranged in the middle of the trigger mechanism;

when the binding machine executes the clamping action, the top block applies force to the locking component to enable the locking component to rotate so as to release the locking of the clamping plate, and when the binding machine executes the binding action, the front end of the needle groove applies force to the trigger mechanism to enable the trigger mechanism to rotate for a certain angle along the anticlockwise direction so that the positions of the top block and the locking component are staggered.

6. The strapping machine in accordance with claim 5,

the front part of the clamping plate is matched with the supporting plate, the rear part of the clamping plate is provided with a groove, the locking component is provided with a non-return pawl corresponding to the groove, when the non-return pawl and the groove are in a meshed state, the non-return pawl overcomes the acting force of the elastic part to apply force to the rear part of the clamping plate, the clamping plate is locked at the standby position, the locking component further comprises a transmission rod hinged with the locking component, and the lower end of the transmission rod is matched with the upper end of the ejector block.

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