A nailing mechanism of a box nailing machine

Abstract

The present invention relates to the technical field of box nailing machines, and in particular, to a nailing mechanism of a box nailing machine, comprising a base and a head assembly arranged on the base for nailing cartons; the head assembly comprises two groups, two slides are slidably connected on the upper wall of the base; the two groups of head assemblies are respectively installed on the two slides; a driving assembly is arranged on the base, and the two slides are driven to move in opposite directions at the same time by the driving assembly. The present invention provides two head assemblies, so that both sides of the binding surface of the carton can be bound at the same time, thereby improving the binding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of box staplers, and in particular to a stapling mechanism of a box stapler. Background Art

[0002] A box stapler, also known as a nailing machine, is mainly used to bind cartons when they are being formed.

[0003] The existing box stapler mainly includes a nailing mechanism, which relies on the nailing mechanism to staple the nails to the carton. However, the existing box stapler is generally only provided with one head assembly, and the binding is completed by the head assembly. Thus, only one binding can be completed at a time, so the efficiency is low, and there is room for improvement. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a stapling mechanism for a box stapling machine.

[0005] In order to solve the above technical problems, the technical solution of the present invention is:

[0006] A nailing mechanism of a box nailing machine comprises a base and a head assembly arranged on the base for nailing cartons; the head assembly comprises two groups, two slides are slidably connected to the upper wall of the base; the two groups of head assemblies are respectively installed on the two slides; a driving assembly is arranged on the base, and the two slides are driven by the driving assembly to move in opposite directions at the same time.

[0007] Furthermore, a sliding block is provided at the bottom of the sliding seat; and a sliding rail for sliding connection of the sliding block is provided at a position corresponding to the sliding block on the base.

[0008] Furthermore, the driving assembly includes a bidirectional lead screw rotatably connected to the base and extending along the sliding direction of the slider, and two nuts respectively threadedly connected to opposite threaded sections of the bidirectional lead screw; the nut is fixedly connected to the slide seat.

[0009] Furthermore, the head assembly includes a head base fixedly mounted on the slide, a forming module arranged on the head base for bending iron wires to form iron nails, and a nailing module arranged on the head base for nailing the iron nails bent by the forming module into the carton.

[0010] Furthermore, a mounting groove is provided on the upper wall of the head seat, and the front end of the mounting groove penetrates the front end wall of the mounting seat; the forming module comprises a bottom plate slidably mounted in the mounting groove and capable of sliding along the length direction of the mounting groove, two forming blocks respectively fixedly connected to the bottom plate, a die head which is arranged on the head seat and can be extended and retracted up and down, a power unit for driving the two forming blocks to slide, and a linkage member arranged between the bottom plate and the die head, and when the bottom plate slides to a predetermined position, the linkage member presses down the die head;

[0011] Both sides of the head seat are provided with holes connected to the mounting groove for the iron wire to pass through;

[0012] The front end wall of each forming block is provided with a placement groove for inserting the iron wire; the two forming blocks are arranged at intervals, and the side wall of one of the forming blocks is in contact with the side groove wall of the installation groove.

[0013] The front end of the bottom plate is provided with a first clearance opening for the die head to pass through; the upper end of the die head is provided with a cutout for the iron wire to be inserted.

[0014] Furthermore, the power unit includes an eccentric wheel rotatably connected to the slide, a motor installed on the slide for driving the eccentric wheel to rotate, a ring sleeved on the outside of the eccentric wheel, and an arm with one end fixed to the side wall of the ring and the other end hinged to the two forming blocks.

[0015] Furthermore, the die head includes a sleeve vertically fixed on the bottom wall of the slide, a clamping rod arranged in the sleeve and movable along the axial direction of the sleeve, and a spring arranged in the sleeve with one end fixed to the bottom of the sleeve and the other end fixed to the lower end of the clamping rod; the incision is arranged at the upper end of the clamping rod.

[0016] Furthermore, the linkage part includes a paddle fixedly mounted on the lower wall of the base plate, and a pressure arm hinged at one end on the slide; a movable opening for the movable end of the pressure arm to pass through is provided on the rod wall of the clamping rod close to the pressure arm; a second yielding opening for the pressure arm to move is provided on the side wall of the sleeve close to the pressure arm; and the upper part of the pressure arm has a protrusion for the paddle to press against.

[0017] Furthermore, the nailing module comprises a nailing block which is arranged between the two forming blocks and can move in the length direction of the forming blocks, and a connecting rod with one end hinged to the upper wall of the eccentric wheel and the other end hinged to the nailing block.

[0018] Furthermore, the side walls on the opposite sides of the two forming blocks are provided with card slots; the side walls on both sides of the nailing block are provided with card blocks slidably connected in the two card slots.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] Firstly, the present invention provides two head assemblies, so that both sides of the binding surface of the carton can be bound simultaneously, thereby improving the binding efficiency.

[0021] Secondly, in the present invention, the two head assemblies are respectively mounted on two slides, and the two slides are slidably mounted on the base, so that the distance between the two slides can be adjusted by the driving assembly to match the size of the carton, thereby adapting to the binding of various cartons. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the back structure of the present invention (the state after the base is removed);

[0024] Figure 3 It is a schematic diagram of the front-end structure of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the nose assembly;

[0026] Figure 5 It is a schematic diagram of the side structure of the head assembly;

[0027] Figure 6 It is a schematic diagram of the front end structure of the machine head assembly;

[0028] Figure 7 for Figure 6 Enlarged view of part A in the middle;

[0029] Figure 8 is a cross-sectional view of the nose assembly;

[0030] Fig. 9 Schematic diagram of the bottom structure of the slide;

[0031] Fig.10 It is a structural schematic diagram of the die head;

[0032] Fig.11 Schematic diagram of the back side structure of the base plate. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0034] Example:

[0035] like Figure 1 and Figure 3 As shown, this embodiment provides a stapling mechanism of a box stapling machine, including a base 1 and a head assembly disposed on the base 1 for stapling cartons; the specific structure of the head assembly is specifically described in the following content.

[0036] In this embodiment, the head assembly includes two groups, and the two groups of head assemblies have the same structure and are respectively used to bind the two sides of the binding surface of the carton.

[0037] Two slides 3 are slidably connected to the upper wall of the base 1, and the two slides 3 are arranged on both sides of the base 1; the two sets of head assemblies are respectively installed on the two slides 3; specifically:

[0038] Combination Figure 2As shown, a slider 31 is provided at the bottom of the slide seat 3; a slide rail 11 for sliding connection of the slider 31 is provided on the base 1 at a position corresponding to the slider 31, and the slider 31 is slidably connected to the slide rail 11 to move along the length direction of the slide rail 11.

[0039] The base 1 is provided with a driving assembly, through which the two slides 3 are driven to move in opposite directions at the same time.

[0040] Specifically, Figure 2 As shown, the driving assembly includes a bidirectional lead screw 41 rotatably connected to the base 1 and extending along the sliding direction of the slider 31, and two nuts 42 respectively threadedly connected to opposite threaded sections of the bidirectional lead screw 41; the nut 42 is fixedly connected to the slide seat 3, and the two nuts 42 are respectively fixedly mounted on the two slide seats 3.

[0041] It is worth noting that the bidirectional lead screw 41 refers to a lead screw with two opposite thread segments on the rod wall, and the two screw nuts 42 are respectively threadedly connected to the two thread segments, so that when the bidirectional lead screw 41 rotates, the two screw nuts 42 can move in opposite directions at the same time. The slide 3 is fixed to the screw nut 42, so that the two slides 3 can move in opposite directions, so as to achieve the purpose of adjusting the distance between the two head assemblies to adapt to the carton.

[0042] Through the above arrangement, firstly, the present solution sets two head assemblies, so that both sides of the binding surface of the carton can be bound simultaneously, thereby improving the binding efficiency.

[0043] Secondly, in this solution, the two head assemblies are respectively mounted on two slides 3, and the two slides 3 are slidably mounted on the base 1, so that the distance between the two slides 3 can be adjusted by the driving assembly to match the size of the carton, thereby adapting to the binding of various cartons.

[0044] The structure of the head assembly is described in detail below:

[0045] like Figure 4 As shown, the head assembly includes a head base 5 fixedly mounted on the slide 3, a forming module disposed on the head base 5 for bending iron wires to form iron nails, and a nailing module disposed on the head base 5 for nailing the iron nails bent by the forming module into the carton. The iron wire is first bent by the forming module to form a binding nail, and then the nailing module staples the formed nails to the carton to complete the binding work.

[0046] In this embodiment, if Figure 6 and Figure 7 As shown, a mounting groove 51 is provided on the upper wall of the head seat 5; the front end of the mounting groove 51 penetrates the front end wall of the mounting seat.

[0047] Combination Figure 4 and Fig.11 As shown, the molding module comprises a bottom plate 61 slidably mounted in the mounting groove 51 and capable of sliding along the length direction of the mounting groove 51, two molding blocks 62 respectively fixedly connected to the bottom plate 61, a die head 63 which is arranged on the headstock 5 and can be telescopically moved up and down, a power unit 64 for driving the two molding blocks 62 to slide, and a linkage member 65 (such as a linkage member 65) arranged between the bottom plate 61 and the die head 63. Figure 8 As shown), when the bottom plate 61 slides to a predetermined position, the linkage member 65 presses down the die head 63;

[0048] It is worth noting that the bottom plate 61 is horizontally arranged at the bottom of the installation groove 51, and the two forming blocks 62 are respectively installed on both sides of the upper wall of the bottom plate 61. In this embodiment, the bottom plate 61 and the two forming blocks 62 can be a one-piece forming structure. The die head 63 is arranged near the front end of the headstock 5.

[0049] like Figure 4 As shown, both sides of the front end of the head seat 5 are provided with through openings 52 connected to the mounting groove 51 for the iron wire to pass through. The whole iron wire passes through one of the through openings 52 into the mounting groove 51 of the head seat 5 for use in subsequent molding steps.

[0050] Combination Figure 7 As shown, the front end wall of the forming block 62 is provided with a placement groove 621 for inserting the iron wire, and the iron wire is inserted into the placement groove 621 after passing through the through hole 52; the two forming blocks 62 are arranged at a distance, and the spacing between the two is used to reserve space for the subsequent installation of the nailing block 71 (detailed description is given later), and the spacing between the two can make way for the die head 63.

[0051] It is worth noting that if Figure 7 As shown, the side wall of one of the forming blocks 62 is fitted with the side groove wall of the mounting groove 51. The purpose of such design is that when the forming block 62 (the forming block 62 that fits the side groove wall of the mounting groove 51) moves forward, since it fits with the side wall of the mounting groove 51, its edge can cut the wire. In this way, there is no need to set up an additional cutting mechanism for cutting the wire, and the wire can be cut by the forming block 62 itself.

[0052] like Fig.11 As shown, the front end of the bottom plate 61 is provided with a first clearance opening 611 for the die head 63 to pass through, so that when the bottom plate 61 moves forward with the forming block 62, the first clearance opening 611 makes way for the bottom plate 61 to avoid being pushed to the die head 63; the upper end of the die head 63 is provided with a cutout 6321 for the wire to be inserted.

[0053] The specific forming steps are: first, the end of the iron wire is inserted through the through hole 52, and then the iron wire passes through the incision 6321 to complete the feeding process, and then the two forming blocks 62 are pushed forward at the same time. Since the die head 63 is located between the two forming blocks 62, the die head 63 positions the middle of the iron wire, and the two forming blocks 62 push the two sides of the iron wire forward at the same time. As the forming blocks 62 move forward, the forming blocks 62 that fit the side walls of the installation groove 51 can cut the iron wire, so that the two sides of the iron wire are bent forward to form U-shaped iron nails for use in the subsequent binding steps.

[0054] In this embodiment, if Figure 8 and Fig.10 As shown, the die head 63 includes a sleeve 631 vertically fixedly mounted on the bottom wall of the slide 3, a clamping rod 632 disposed in the sleeve 631 and movable along the axial direction of the sleeve 631, and a spring 633 disposed in the sleeve 631, one end of which is fixed to the bottom of the sleeve 631 and the other end is fixed to the lower end of the clamping rod 632; the cutout 6321 is disposed at the upper end of the clamping rod 632. The upper end of the sleeve 631 extends into the mounting groove 51 and is flush with the bottom wall of the mounting groove 51. The spring 633 generates an upward pushing elastic force on the clamping rod 632, so that the clamping rod 632 is in an extended state in a natural state, that is, extends into the mounting groove 51, so that the cutout 6321 at the upper end of the clamping rod 632 is used for bending the wire.

[0055] like Figure 8 , Fig. 9 , Fig.11 As shown, the linkage member 65 includes a paddle 651 fixedly mounted on the lower wall of the bottom plate 61, and a pressure arm 652 hinged at one end on the slide 3, so that the movable end of the pressure arm 652 can be turned up and down along its hinged end; the paddle 651 is mounted on the bottom plate 61, so that it can move with the bottom plate 61. It is worth noting that the bottom of the slide 3 corresponding to the position of the pressure arm 652 has a through hole for the pressure arm 652 to move, and the bottom wall of the mounting groove 51 has a channel for the paddle 651 to move.

[0056] like Figure 8 and Fig.10 As shown, a movable opening 6322 for the movable end of the pressure arm 652 to penetrate is provided on the rod wall of the clamping rod 632 on the side close to the pressure arm 652, that is, the movable end of the pressure arm 652 extends into the movable opening 6322, so that the movable end can move in the movable opening 6322; a second yielding opening 6311 for the pressure arm 652 to move is provided on the side wall of the sleeve 631 on the side close to the pressure arm 652, so that the movable end of the pressure arm 652 can be lifted or dropped in the second yielding opening 6311; the upper part of the pressure arm 652 has a protrusion 6521 for the paddle 651 to press, and in this embodiment, the side wall of the paddle 651 on the side opposite to the protrusion 6521 is a curved structure, and the side walls on both sides of the protrusion 6521 are both curved structures.

[0057] During forming, the two forming blocks 62 move forward together with the base plate 61 to prepare to bend the iron wire (at this time, the clamping rod 632 is in a state of extending into the installation groove 51), and at the same time, the paddle 651 will also move forward with the base plate 61 until the paddle 651 abuts against the protrusion 6521, and the paddle 651 begins to have a tendency to press down on the protrusion 6521. The paddle 651 continues to move forward, and it will continuously press down the pressure arm 652, and then the movable end of the pressure arm 652 will continuously press down the clamping rod 632, and finally the clamping rod 632 will be lowered from the installation groove 51, so that the existence of the clamping rod 632 can be avoided to interfere with the forward nailing of the nailing block 71.

[0058] When nailing is completed, the bottom plate 61 drives the paddle 651 to retreat. At this time, the paddle 651 no longer acts on the protrusion 6521. Under the elastic force of the spring 633, the clamping rod 632 returns to the installation slot 51 for the next nailing.

[0059] In this embodiment, the power unit 64 includes an eccentric wheel 642 rotatably connected to the slide 3, a motor 641 installed on the slide 3 for driving the eccentric wheel 642 to rotate, a ring 643 sleeved on the outside of the eccentric wheel 642, and a support arm 644 with one end fixed to the side wall of the ring 643 and the other end hinged to the two forming blocks 62. As the motor 641 drives the eccentric wheel 642 to rotate, the eccentric wheel 642 will produce a pushing effect on the inner wall of the ring 643, causing the ring 643 to move, and then the ring 643 drives the support arm 644 to push and pull the forming block 62, thereby driving the forming block 62 to move in the mounting groove 51.

[0060] In this embodiment, a flange is extended outwardly from the bottom of the eccentric wheel 642 , and the upper wall of the flange is slidably connected to the bottom wall of the circular ring 643 , so that the flange plays a certain supporting role for the circular ring 643 .

[0061] In this embodiment, the nailing module includes a nailing block 71 disposed between the two forming blocks 62 and movable in the length direction of the forming blocks 62, and a connecting rod 72 with one end hinged on the upper wall of the eccentric wheel 642 and the other end hinged on the nailing block 71, so that as the eccentric wheel 642 rotates, the connecting rod 72 can be driven to move, and the nailing block 71 is pushed and pulled by the connecting rod 72 to perform the nailing action. In this embodiment, the power unit 64 can not only provide power for the forming block 62 to move, but also provide power for the nailing block 71 to move; and the above-mentioned power unit 64 can be a speed difference between the movement of the forming block 62 and the nailing block 71, so that the nails are first bent and formed by the forming block 62, and then nailed by the nailing block 71.

[0062] In this embodiment, the side walls on the opposite sides of the two forming blocks 62 are provided with grooves 622, so that after the iron nail is formed, its two sides are stuck in the grooves 622 and will not fall off; the side walls on both sides of the nailing block 71 are provided with blocks 711 slidably connected to the two grooves 622, so that when the block 711 moves forward, it can push the part of the iron nail stuck in the groove 622 to perform the nailing action.

[0063] The whole working process of this embodiment is as follows:

[0064] First, insert the end of the wire into the installation groove 51 through the through hole 52 (through the cutout 6321 at the end of the clamping rod 632);

[0065] Then, the motor 641 drives the eccentric wheel 642 to rotate, and then the eccentric wheel 642 pushes the forming block 62 through the support arm 644, so that the forming block 62 is connected to the bottom plate 61 and moves forward in the installation groove 51. While the eccentric wheel 642 is rotating, it also pushes the nailing block 71 through the connecting rod 72, so that the nailing block 71 moves forward in the middle of the forming block 62. It is worth noting that due to the structural characteristics of the power unit 64 of this embodiment, there is a speed difference between the forming block 62 and the nailing block 71 during the forward movement, which makes the forming block 62 and the nailing block 71 move forward. The block 62 first pushes and bends the iron wire into shape, and when the paddle 651 on the bottom plate 61 moves to the protrusion 6521 of the pressure arm 652 and continues to move forward, it will continuously press the pressure arm 652 downward, and then the pressure arm 652 continuously presses the clamping rod 632 downward until the clamping rod 632 is lowered from the installation groove 51 and received in the sleeve 631, so that the clamping rod 632 will not interfere with the advancement of the nailing block 71. During this process, the nailing block 71 continues to move forward, and will eventually push the bent iron nails into the carton to complete the binding.

[0066] The above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A nailing mechanism of a carton nailing machine, comprising a base and a head assembly arranged on the base for nailing cartons; characterized in that: The machine head assembly includes two groups, and two slides are slidably connected to the upper wall of the base; the two groups of the machine head assembly are respectively installed on the two slides; a driving assembly is provided on the base, and the two slides are driven to move in opposite directions at the same time by the driving assembly; A slider is provided at the bottom of the slide seat; a slide rail for sliding connection of the slider is provided on the base corresponding to the position of the slider; The head assembly includes a head base fixedly mounted on the slide, a forming module arranged on the head base for bending iron wires to form iron nails, and a nailing module arranged on the head base for nailing the iron nails bent by the forming module into the carton; The upper wall of the head seat is provided with a mounting groove, and the front end of the mounting groove penetrates the front end wall of the mounting seat; the forming module comprises a bottom plate slidably mounted in the mounting groove and capable of sliding along the length direction of the mounting groove, two forming blocks respectively fixedly connected to the bottom plate, a die head which is arranged on the head seat and can be extended and retracted up and down, a power unit for driving the two forming blocks to slide, and a linkage member arranged between the bottom plate and the die head, and when the bottom plate slides to a predetermined position, the linkage member presses down the die head; Both sides of the head seat are provided with holes connected to the mounting groove for the iron wire to pass through; The front end wall of each forming block is provided with a placement groove for placing the wire; the two forming blocks are arranged at a distance, and the side wall of one of the forming blocks is in contact with the side groove wall of the installation groove; The front end of the bottom plate is provided with a first clearance opening for the die head to pass through; the upper end of the die head is provided with a cutout for the iron wire to be inserted; The power unit includes an eccentric wheel rotatably connected to the slide seat, a motor mounted on the slide seat for driving the eccentric wheel to rotate, a ring sleeved on the outside of the eccentric wheel, and a support arm with one end fixed to the side wall of the ring and the other end hinged to the two forming blocks; The die head comprises a sleeve vertically fixedly mounted on the bottom wall of the slide seat, a clamping rod arranged in the sleeve and movable along the axial direction of the sleeve, and a spring arranged in the sleeve with one end fixed to the bottom of the sleeve and the other end fixed to the lower end of the clamping rod; the cutout is arranged at the upper end of the clamping rod; The linkage member comprises a paddle fixedly mounted on the lower wall of the bottom plate, and a pressure arm hinged at one end on the slide seat; a movable opening for the movable end of the pressure arm to penetrate is provided on the rod wall of the clamping rod close to the pressure arm; a second clearance opening for the pressure arm to move is provided on the side wall of the sleeve close to the pressure arm; and a protrusion for the paddle to press against is provided on the upper part of the pressure arm; The nailing module comprises a nailing block disposed between the two forming blocks and movable in the length direction of the forming blocks, and a connecting rod with one end hinged to the upper wall of the eccentric wheel and the other end hinged to the nailing block; The side walls on the opposite sides of the two forming blocks are both provided with card slots; the side walls on both sides of the nailing block are provided with card blocks which are slidably connected in the two card slots.

2. The nailing mechanism of a box nailing machine according to claim 1, characterized in that: The driving assembly comprises a bidirectional lead screw which is rotatably connected to the base and extends along the sliding direction of the slider, and two screw nuts which are respectively threadedly connected to opposite threaded sections of the bidirectional lead screw; the screw nuts are fixedly connected to the slider.

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