Positioning mechanism of double-piece box nailing machine

Abstract

The utility model relates to the technical field of positioning mechanisms, and provides a double-piece box stapler positioning mechanism which is used for being arranged in a binding machine frame of a box stapler, supporting pieces are arranged on the two sides in the binding machine frame and used for bearing two paperboards which are in lap joint together, the double-piece box stapler positioning mechanism comprises a blocking piece, and the blocking piece is used for being arranged on the binding machine frame. The paper boards are arranged on the bookbinding machine frame and located between the supporting pieces on the two sides of the bookbinding machine frame, the multiple blocking pieces are arranged in the arrangement direction of the two supporting pieces, and at least two blocking pieces are arranged at the position corresponding to each paper board. According to the technical scheme, when the paperboards make contact with the blocking pieces, the multiple blocking pieces block and position the paperboards from different positions, the phenomenon that the paperboards are staggered can be effectively avoided, and the two paperboards can be kept at the correct relative positions before being bound.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of positioning mechanism, and in particular, to a double-piece box nailing machine positioning mechanism. BACKGROUND

[0002] The box nailing machine is a commonly used device in the production process of packaging boxes, which is used to staple the bent paperboard together. When two paperboards need to be bent and then stapled, the ends of the two paperboards close to each other need to be overlapped first, and then the ends of the two paperboards away from each other are folded upwards in sequence, so that the ends of the two paperboards away from each other are also overlapped together. Then, the two overlapped positions of the paperboard are separated, and the paperboard can be sent into the box nailing machine for stapling.

[0003] The support is arranged inside the stapling frame of the box nailing machine, and the two paperboards are pushed onto the two supports. When the paperboard contacts the stopper, the paperboard cannot continue to move, indicating that the paperboard is pushed into position, and then stapling can be performed. After stapling is completed, the paperboard can be sent out. At present, in the production process, when the paperboard contacts the stopper, the two paperboards are prone to misalignment, resulting in stapling deviation, which affects the stapling precision and product quality. CONTENT OF THE UTILITY MODEL

[0004] To overcome the above defects, embodiments of the present disclosure provide a double-piece box nailing machine positioning mechanism, which solves the technical problem that in the related art, when the paperboard contacts the stopper, the two paperboards are prone to misalignment, resulting in stapling deviation, which affects the stapling precision and product quality.

[0005] According to one aspect, at least one embodiment of the present disclosure provides a double-piece box nailing machine positioning mechanism for being arranged in a stapling frame of a box nailing machine. The stapling frame has supports on both sides for carrying two overlapped paperboards. The mechanism includes stoppers arranged on the stapling frame between the supports on both sides. The stoppers are arranged in the direction of the two supports, and each paperboard has at least two stoppers corresponding to it.

[0006] For example, in the double-piece box nailing machine positioning mechanism provided by at least one embodiment of the present disclosure, the mechanism further includes:

[0007] The first sliding seat is arranged on the stapling frame in a sliding manner, and the sliding direction is perpendicular to the arrangement direction of all the stoppers. The first sliding seat has a plurality of stoppers arranged one by one.

[0008] A first screw rod is arranged on the bookbinding frame for relative rotation and has the same length direction as the sliding direction of the first sliding seat. The first screw rod has a plurality of first sliding seats which are threadedly connected to the first screw rod one by one.

[0009] For example, in the positioning mechanism of the double-piece box nailing machine, the support member is a conveying member, the conveying direction is the same as the sliding direction of the first sliding seat, the blocking member is hingedly connected to the first sliding seat, and the hinge shaft is perpendicular to the sliding direction of the first sliding seat. The positioning mechanism of the double-piece box nailing machine further comprises a telescopic mechanism, one end of the telescopic mechanism is hingedly connected to the first sliding seat, and the other end is hingedly connected to the blocking member. After the telescopic mechanism is configured to be telescoped, the blocking member is used to be erected to block the paperboard or be turned to the lower side of the paperboard.

[0010] For example, in the positioning mechanism of the double-piece box nailing machine, the positioning mechanism of the double-piece box nailing machine further comprises:

[0011] A support seat is arranged on the bookbinding frame. The first sliding seat is slidingly arranged on the support seat, and the first screw rod is rotationally arranged on the support seat.

[0012] A guide rail is arranged on the support seat. The length direction of the guide rail is the same as the sliding direction of the first sliding seat. The first sliding seat is slidingly connected to the guide rail.

[0013] For example, in the positioning mechanism of the double-piece box nailing machine, the support seat and the guide rail are arranged one by one. The positioning mechanism of the double-piece box nailing machine further comprises:

[0014] A second sliding seat is slidingly arranged on the bookbinding frame. The sliding direction of the second sliding seat is perpendicular to the length direction of the first screw rod. At least one support seat corresponding to each paperboard is arranged on the second sliding seat. The support seat and the second sliding seat are arranged one by one.

[0015] A second screw rod is arranged on the bookbinding frame for rotation. The length direction of the second screw rod is the same as the sliding direction of the second sliding seat. The second sliding seat is threadedly connected to the second screw rod and arranged one by one.

[0016] For example, in the positioning mechanism of the double-piece box nailing machine, the positioning mechanism of the double-piece box nailing machine further comprises a guide rod. The guide rod is arranged on the bookbinding frame. The length direction of the guide rod is the same as the length direction of the second screw rod. The second sliding seat is sleeved on the guide rod and slidingly connected to the guide rod.

[0017] For example, in at least one embodiment of the present disclosure, a positioning mechanism for a double-piece nailing machine is provided, which further includes a rotary drive mechanism. The rotary drive mechanism is disposed on the support base and is connected to the first lead screw via a transmission.

[0018] For example, in a positioning mechanism for a double-piece nail box machine provided in at least one embodiment of this disclosure, the rotary drive mechanism and the support base are detachably connected.

[0019] For example, in a positioning mechanism for a double-piece stapler provided in at least one embodiment of this disclosure, the support seat adjacent to the support member is disposed on the binding frame, and the remaining support seats are disposed on the second slide.

[0020] For example, in a positioning mechanism for a double-piece nail box machine provided in at least one embodiment of this disclosure, the support base and the second slide are detachably connected.

[0021] The beneficial effects of the embodiments disclosed herein are as follows: Supports are provided on both sides of the binding frame, allowing two overlapping cardboard pieces to be placed on these supports. Multiple stops are provided on the binding frame, arranged along the direction of the supports on both sides. Each cardboard piece has at least two stops at its corresponding position. When the two cardboard pieces are pushed onto the supports, each piece contacts at least two stops. This ensures that when the cardboard contacts the stops, the multiple stops block and position the cardboard from different positions, effectively preventing misalignment and ensuring that the two cardboard pieces maintain the correct relative position before binding. This improves binding accuracy, reduces binding deviation, enhances product quality, and reduces the number of defective products caused by binding problems. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the positioning mechanism of the double-piece nailing machine in one direction in one embodiment of the present disclosure;

[0024] Figure 2 for Figure 1 A schematic diagram of the embodiment from another direction;

[0025] Figure 3 forFigure 1 A schematic diagram of the connection structure between the stop near the support and the binding frame in the embodiment;

[0026] Figure 4 for Figure 1 A schematic diagram of the connection structure between the stop and the second slide in one direction in the embodiment;

[0027] Figure 5 for Figure 1 A schematic diagram of the connection structure between the stop and the second slide in another direction in the embodiment.

[0028] In the figure: 1. Stop, 2. First slide, 3. First lead screw, 4. Telescopic mechanism, 5. Support base, 6. Guide rail, 7. Second slide, 8. Second lead screw, 9. Guide rod, 10. Rotary drive mechanism, 11. Binding frame, 12. Support. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-2 The diagram illustrates a positioning mechanism for a double-piece stapling machine according to an embodiment of this disclosure. The mechanism is installed within the binding frame 11 of the stapling machine. The binding frame 11 includes left and right uprights and a crossbeam connecting the uprights. The crossbeam and uprights are welded or bolted together to form a robust whole, providing a stable support platform for the positioning mechanism. Taking the binding frame 11 as an example with its length along the front-to-back direction, both sides of the binding frame 11 have support members 12. The left and right support members 12 support two overlapping cardboard pieces, providing a stable support platform for the two pieces. Stoppers 1 are installed on the binding frame 11, located between the support members 12 on both sides of the binding frame 11. Multiple stoppers 1 are arranged along the direction of the two support members 12, with at least two stoppers 1 at each position corresponding to a cardboard piece. The shape of the stop 1 can be designed as a rectangular block or plate, with its height slightly higher than the thickness of the cardboard. The width is designed according to actual needs, ensuring that it can effectively block the cardboard without affecting its normal conveying and positioning. Preferably, this disclosure has four stops 1, with two stops 1 corresponding to each cardboard position.

[0036] like Figure 1 and Figure 2As shown, when in use, the two paperboards overlapped together are moved into the binding frame 11 from back to front and are placed on the left and right two supporting members 12. Each paperboard will contact at least two blocking pieces 1 arranged in the left and right directions, so that when the paperboard contacts the blocking piece 1, the plurality of blocking pieces 1 block and position the paperboard from different positions, which can effectively avoid the misalignment of the paperboard, so that the two paperboards can maintain the correct relative position before binding, thereby improving the binding accuracy and reducing the binding deviation, which can improve the product quality and reduce the number of defective products due to binding problems.

[0037] In some examples, the double-piece box nailing machine positioning mechanism further comprises a first sliding seat 2 and a first lead screw 3. The first sliding seat 2 is arranged on the binding frame 11 for relative sliding, and the sliding direction is perpendicular to the arrangement direction of all the blocking pieces 1. The first sliding seat 2 has a plurality of blocking pieces 1 arranged thereon in one-to-one correspondence. The first lead screw 3 is arranged on the binding frame 11 for relative rotation, and the length direction is the same as the sliding direction of the first sliding seat 2. The first lead screw 3 has a plurality of first sliding seats 2 connected in a one-to-one correspondence in a threaded manner.

[0038] As shown in Figure 3 , Figure 4 and Figure 5 , taking the length direction of the binding frame 11 arranged in the front and back direction as an example, the length direction of the first lead screw 3 is arranged in the front and back direction. By rotating the first lead screw 3, the first sliding seat 2 threaded with it can slide forward or backward by using the principle of threaded connection. Since the blocking piece 1 is fixed on the first sliding seat 2, the blocking piece 1 will move synchronously with the first sliding seat 2. In this way, the front and back positions of the blocking piece 1 can be flexibly adjusted according to the size and position requirements of different paperboards, precise positioning can be achieved, the adaptability of the positioning mechanism can be enhanced, and the positioning requirements of paperboards of different specifications can be met.

[0039] In some examples, the supporting member 12 is a conveying member, and the conveying direction is the same as the sliding direction of the first sliding seat 2. The blocking piece 1 is hinged to the first sliding seat 2, and the hinge shaft is perpendicular to the sliding direction of the first sliding seat 2. The double-piece box nailing machine positioning mechanism further comprises a telescopic mechanism 4. One end of the telescopic mechanism 4 is hinged to the first sliding seat 2, and the other end is hinged to the blocking piece 1. The telescopic mechanism 4 is configured to be telescoped to make the blocking piece 1 stand up to block the paperboard or turn under the paperboard.

[0040] As shown in Figure 3 , Figure 4 and Figure 5As shown, the first slide 2 can slide in the front-back direction, the support 12 can forwardly convey the paperboard, the front end of the telescopic mechanism 4 is hinged to the first slide 2, and the rear end is hinged to the stop piece 1. Initially, the telescopic mechanism 4 is in a contracted state, the stop piece 1 is in an erected state, the paperboard moves into the binding frame 11 from back to front, and is placed on the left and right two supports 12, the paperboard stops moving after contacting the stop piece 1, and after the binding is completed, the telescopic mechanism 4 is elongated, the stop piece 1 is rotated around the hinge shaft of the first slide 2, so that the lower end of the stop piece 1 is flipped backward and the upper end is flipped forward, until the stop piece 1 is flipped below the paperboard, the telescopic mechanism 4 stops elongating, the support 12 acts to continue to forwardly convey the paperboard to make it away from the support 12, and then the support 12 stops acting, ready to receive the next paperboard. The automatic conveying function of the paperboard can be realized, and the bound paperboard does not need to be manually taken out, so that the automation degree and operation convenience of the equipment can be improved.

[0041] In some examples, the double-piece box nailing machine positioning mechanism further comprises a support seat 5 and a guide rail 6, the support seat 5 is arranged on the binding frame 11, the first slide 2 is slidingly arranged on the support seat 5, and the first lead screw 3 is rotationally arranged on the support seat 5; the guide rail 6 is arranged on the support seat 5, the length direction of the guide rail 6 is the same as the sliding direction of the first slide 2, and the first slide 2 is slidingly connected with the guide rail 6.

[0042] As shown in Figure 3 , Figure 4 and Figure 5 , the support seat 5 supports and positions the first slide 2, the first lead screw 3 and the guide rail 6, the length directions of the first lead screw 3 and the guide rail 6 are both arranged in the front-back direction, and in the sliding process of the first slide 2, the guide rail 6 can guide and limit the first slide 2, so that the first slide 2 is more stable and accurate in the sliding process, the shaking and deviation are reduced, and the stop piece 1 can more accurately position the paperboard.

[0043] In some examples, the support seat 5 and the guide rail 6 are arranged one by one, the double-piece box nailing machine positioning mechanism further comprises a second slide 7 and a second lead screw 8, the second slide 7 is slidingly arranged on the binding frame 11, and the sliding direction is perpendicular to the length direction of the first lead screw 3, at least one of all the support seats 5 corresponding to each paperboard is arranged on the second slide 7, and the support seat 5 and the second slide 7 are arranged one by one; the second lead screw 8 is rotationally arranged on the binding frame 11, and the length direction is the same as the sliding direction of the second slide 7, the second slide 7 is threadedly connected with the second lead screw 8 and arranged one by one.

[0044] As shown in Figure 3 , Figure 4 and Figure 5As shown, the length direction of the second screw rod 8 is arranged along the left-right direction, and the first screw rod 3 drives the first sliding seat 2 to move along the front-back direction when rotating, so as to realize the position adjustment of the blocking piece 1 in the front-back direction. When the second screw rod 8 rotates, the second sliding seat 7 is driven to slide in the left-right direction through the threaded connection, so as to adjust the positions of the support seat 5 connected with the second sliding seat 7, the guide rail 6, the first screw rod 3, the first sliding seat 2, and the blocking piece 1 installed on the support seat 5 in the left-right direction, and the spacing between two adjacent blocking pieces 1 can be changed, so as to meet the positioning requirements of paperboards with different sizes and shapes.

[0045] In some examples, the positioning mechanism of the double-piece box nailing machine further comprises a guide rod 9 arranged on the binding machine frame 11, and the length direction of the guide rod 9 is the same as that of the second screw rod 8. The second sliding seat 7 is sleeved on the guide rod 9 and is in sliding connection with the guide rod 9.

[0046] As shown in Figure 3 , Figure 4 and Figure 5 , the guide rod 9 is installed on the binding machine frame 11, and the length directions of the second screw rod 8 and the guide rod 9 are both arranged along the left-right direction. When the second screw rod 8 drives the second sliding seat 7 to move, the guide rod 9 can guide and limit the second sliding seat 7, so as to prevent the second sliding seat 7 from rotating or deviating during the movement, and ensure that the second sliding seat 7 can move stably in the predetermined direction, thereby enhancing the stability and accuracy of the sliding of the second sliding seat 7, and ensuring the accuracy of the position adjustment of the second sliding seat 7, the guide rail 6, and the blocking piece 1 installed on the support seat 5. This helps to more accurately position the paperboard, and further improves the reliability of binding and the product quality.

[0047] In some examples, the positioning mechanism of the double-piece box nailing machine further comprises a rotary driving mechanism 10 arranged on the support seat 5 and in transmission connection with the first screw rod 3.

[0048] As shown in Figure 3 , Figure 4 , Figure 5 and Figure 2 , the rotary driving mechanism 10 provides power for the rotation of the first screw rod 3, and the power of the rotary driving mechanism 10 is transmitted to the first screw rod 3 through a transmission device such as a belt or a gear, so that the first screw rod 3 can rotate at a set speed and direction, and further drives the first sliding seat 2 and the blocking piece 1 to move. Compared with manually rotating the first screw rod 3, the first screw rod 3 is driven to rotate by the rotary driving mechanism 10, which is more time-saving and labor-saving, and can improve the efficiency and accuracy of adjustment.

[0049] In some examples, the rotatable driving mechanism 10 is detachably connected with the support seat 5, for example, bolted connection, clamping connection, etc. When the rotatable driving mechanism 10 needs to be repaired or replaced, the rotatable driving mechanism 10 can be conveniently detached from the support seat 5, which can improve the convenience and flexibility of equipment maintenance, and reduce the maintenance cost and downtime of the equipment.

[0050] In some examples, the support seat 5 adjacent to the support 12 is arranged on the binding rack 11, and the remaining support seats 5 are arranged on the second sliding seat 7.

[0051] As shown in Figure 3 and Figure 4 , four blocking pieces 1 are arranged in the left-right direction, and correspondingly, four support seats 5 are arranged in the left-right direction, as shown in Figure 5 , Figure 1 and Figure 2 Figure 3 Figure 4 Figure 5 , the leftmost and rightmost support seats 5 are directly fixed on the binding rack 11, and the two middle support seats 5 are arranged on the second sliding seat 7. By changing the left-right position of the two middle support seats 5, the distance between the two adjacent blocking pieces 1 can be changed, which can meet the positioning requirements of paperboards of different sizes and shapes, and further improve the versatility and binding accuracy of the equipment.

[0052] In some examples, the support seat 5 is detachably connected with the second sliding seat 7, for example, bolted connection, plug-in connection, which can conveniently adjust the installation position of the second sliding seat 7 on the support seat 5 according to actual production needs, or detach the second sliding seat 7 from the support seat 5 for separate repair or replacement when needed, which can increase the adjustability and maintenance convenience of the positioning mechanism.

[0053] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, which should be covered in the scope of the claims of the present disclosure.

Claims

1. A positioning mechanism for a double-stitcher, for being arranged in a stapling frame (11) of a stapler, both sides of said stapling frame (11) having a support (12) for carrying two paperboards which are overlapped together, characterized in that, The invention relates to a positioning mechanism of a double-piece box nailing machine, comprising a plurality of stop pieces (1) arranged on the binding frame (11) between the support pieces (12) on both sides of the binding frame (11), wherein all the stop pieces (1) are arranged along the arrangement direction of the two support pieces (12), and each position corresponding to each paperboard has at least two stop pieces (1).

2. A positioning mechanism for a double-stitcher box nailing machine according to claim 1, characterized in that, The positioning mechanism of the double-piece box nailing machine further comprises: a first sliding seat (2) arranged on the binding frame (11) in a relative sliding manner, wherein the sliding direction is perpendicular to the arrangement direction of all the stop pieces (1), the first sliding seat (2) has a plurality of stop pieces (1) arranged thereon in a one-to-one correspondence manner; a first lead screw (3) arranged on the binding frame (11) in a relative rotating manner, wherein the length direction is the same as the sliding direction of the first sliding seat (2), the first sliding seat (2) is threadedly connected with the first lead screw (3) in a one-to-one correspondence manner.

3. A positioning mechanism for a double-stitcher box nailing machine according to claim 2, characterized in that, The support piece (12) is a conveying piece, and the conveying direction is the same as the sliding direction of the first sliding seat (2), the stop piece (1) is hinged with the first sliding seat (2), the hinge shaft is perpendicular to the sliding direction of the first sliding seat (2), the positioning mechanism of the double-piece box nailing machine further comprises a telescopic mechanism (4), one end of the telescopic mechanism (4) is hinged with the first sliding seat (2), the other end is hinged with the stop piece (1), and the telescopic mechanism (4) is configured to make the stop piece (1) stand up to block the paperboard or turn to the lower side of the paperboard after being telescoped.

4. A positioning mechanism for a double-stitcher box nailing machine according to claim 2, characterized in that, The positioning mechanism of the double-piece box nailing machine further comprises: a support seat (5) arranged on the binding frame (11), the first sliding seat (2) is slidingly arranged on the support seat (5), and the first lead screw (3) is rotatably arranged on the support seat (5); a guide rail (6) arranged on the support seat (5), wherein the length direction of the guide rail (6) is the same as the sliding direction of the first sliding seat (2), and the first sliding seat (2) is slidingly connected with the guide rail (6).

5. A positioning mechanism for a double-stitcher box nailing machine according to claim 4, characterized in that, The support seat (5) and the guide rail (6) are arranged in a one-to-one correspondence manner, and the positioning mechanism of the double-piece box nailing machine further comprises: a second sliding seat (7) slidingly arranged on the binding frame (11), wherein the sliding direction is perpendicular to the length direction of the first lead screw (3), at least one support seat (5) in all the support seats (5) corresponding to each paperboard is arranged on the second sliding seat (7), and the support seat (5) and the second sliding seat (7) are arranged in a one-to-one correspondence manner; a second lead screw (8) rotatably arranged on the binding frame (11), wherein the length direction is the same as the sliding direction of the second sliding seat (7), and the second sliding seat (7) is threadedly connected with the second lead screw (8) in a one-to-one correspondence manner.

6. A positioning mechanism for a double-stitcher box nailing machine according to claim 5, characterized in that, The positioning mechanism of the double-piece box nailing machine further comprises a guide rod (9) arranged on the bookbinding frame (11), the length direction of the guide rod (9) is the same as the length direction of the second screw rod (8), and the second sliding base (7) is sleeved on the guide rod (9) and is in sliding connection with the guide rod (9).

7. A positioning mechanism for a double-stitcher box nailing machine according to claim 5, characterized in that, The positioning mechanism of the double-piece box nailing machine further comprises a rotary driving mechanism (10) arranged on the support base (5) and in driving connection with the first screw rod (3).

8. A positioning mechanism for a double-stitcher box nailing machine according to claim 7, characterized in that, The rotary driving mechanism (10) and the support base (5) are detachably connected.

9. A positioning mechanism for a double-stitcher box nailing machine according to claim 5, characterized in that, The support base (5) adjacent to the support piece (12) is arranged on the bookbinding frame (11), and the rest of the support bases (5) are arranged on the second sliding base (7).

10. A positioning mechanism for a double-stitcher box nailing machine according to claim 5, characterized in that, The support base (5) and the second sliding base (7) are detachably connected.

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