Automatic nailing device for plywood

Abstract

The utility model discloses an automatic plywood nailing device which comprises a machine base, a double-shaft moving mechanism, a positioning clamp, a nail feeding mechanism, a nail clamping mechanism, a nail pressing mechanism and a jacking mechanism. The positioning clamp is connected with the double-shaft moving mechanism, the nail clamping mechanism is arranged at the discharging end of the nail feeding mechanism, the nail pressing mechanism is arranged above the nail clamping mechanism, the jacking mechanism is arranged on the portion, under the nail pressing mechanism, of the machine base, and the nail pressing mechanism comprises a driving motor, an eccentric block, a swing arm, a spring, a stamping rod and a guide base. The rivet feeding mechanism can transfer rivets into the rivet clamping mechanism, the rivet clamping mechanism can clamp the rivets to prevent the rivets from shifting or inclining in the nailing process, the rivet pressing mechanism can punch the rivets so as to press the rivets into plywood workpieces in the positioning clamp, and therefore the nailing action is completed. And the upper jacking mechanism can support the rivet and is matched with the punching action of the punching rod to flatten the bottom of the rivet, so that the rivet is fixed in the plywood, and reliable riveting is formed.

Description

Technical Field

[0001] The utility model relates to the field of nailing devices, in particular to an automatic nailing device for plywood. Background Art

[0002] Plywood is a wood product made of multiple layers of thin wood sheets pressed together with adhesive. It is widely used due to its excellent strength, stability and economy, especially in industries such as furniture manufacturing and architectural decoration. In order to improve the stability and strength of the overall structure, it is often necessary to rivet the multiple layers of thin wood together.

[0003] In the existing technology, the riveting process of plywood usually relies on manual operation, which has problems such as low operating efficiency, high labor intensity, and inaccurate nailing position. In addition, manual operation is prone to uneven nailing depth, which in turn affects the assembly effect and service life of the plywood. In order to improve efficiency, there are also some automated nailing equipment on the market. However, after completing a nailing operation, the transmission nailing equipment often needs to be reset manually or with the help of an external mechanism, which increases the complexity of the operation and low efficiency. Moreover, traditional nailing equipment can only adapt to workpieces of fixed sizes, with poor flexibility and adaptability, and it is difficult to meet the mass production needs of products of multiple specifications.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic plywood nailing device which has high production efficiency and can clamp workpieces of various sizes.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: an automatic plywood nailing device, comprising a machine base, a biaxial moving mechanism, a positioning fixture, a nail feeding mechanism, a nail clamping mechanism, a nail pressing mechanism and a lifting mechanism;

[0007] The biaxial moving mechanism is arranged on the machine base, and the positioning fixture is connected to the biaxial moving mechanism, and the positioning fixture is used to clamp the plywood workpiece to be nailed;

[0008] A mounting frame is provided above the machine base, the nail feeding mechanism is provided at a side end of the mounting frame, the nail clamping mechanism is provided at a discharge end of the nail feeding mechanism, the nail feeding mechanism is used to transfer the rivets into the nail clamping mechanism, and the nail clamping mechanism is used to clamp the rivets;

[0009] The nail pressing mechanism is arranged above the nail clamping mechanism, and the lifting mechanism is arranged on the machine base directly below the nail pressing mechanism. The nail pressing mechanism is used to punch the rivets on the nail clamping mechanism onto the plywood workpiece of the positioning fixture;

[0010] The nail pressing mechanism includes a driving motor, an eccentric block, a swing arm, a spring, a punching rod and a guide seat. The guide seat is located above the nail clamping mechanism. A guide hole is provided in the guide seat for guiding the movement of the punching rod. One end of the swing arm is connected to the top of the punching rod, and the other end of the swing arm is connected to the spring through a connecting block. A sliding groove is provided on the swing arm for accommodating the eccentric block. The output shaft of the driving motor is connected to the eccentric block. The punching rod is used to move up and down with the swing of the swing arm.

[0011] According to the above technical solution, in the automatic plywood nailing device, the nail feeding mechanism includes a feeding hopper, a nail distribution plate and a feeding track;

[0012] The feed hopper is arranged above the nail plate, the feed end of the feed track is connected to the bottom of the nail plate, and the discharge end of the feed track is connected to the nail clamping mechanism. The feed track is used to transport the rivets on the nail plate to the nail clamping mechanism in sequence.

[0013] According to the above technical solutions, in the automatic plywood nailing device, the nail clamping mechanism includes a nail clamping head, a swing seat and a roller;

[0014] The top of the swing seat is rotatably connected to the mounting frame via a pin shaft, the clamping head is provided at the bottom of the swing seat, and the clamping head is provided with a clamping opening for placing rivets, and the roller is provided in the swing seat, and the roller is used to slide and abut against the punching rod.

[0015] According to the above technical solutions, in the automatic plywood nailing device, the positioning fixture includes a positioning frame, a first rubber pad, a second rubber pad, a slide rail, a locking bolt and a pressing assembly;

[0016] The positioning frame is connected to the biaxial moving mechanism, the first rubber pads are arranged on both sides of the positioning frame, the slide rails extend along the width direction of the positioning frame, the bottom of the second rubber pad is movably connected to the slide rails via a slider, the locking bolt passes through the slider and abuts against the slide rail, and the locking bolt is used to lock the second rubber pad;

[0017] The first rubber pad and the second rubber pad are used to support the plywood workpiece. The pressing assembly is provided at the side end of the positioning frame. The pressing assembly is used to press the plywood workpiece onto the first rubber pad and the second rubber pad.

[0018] According to the above technical solutions, in the automatic plywood nailing device, the pressing assembly includes a pushing cylinder, a rotating rod and a pressing seat;

[0019] The rotating rod is extended along the length direction of the positioning frame, a plurality of pressure seats are arranged on the rotating rod, the pushing cylinder is arranged at the side end of the positioning frame, and the movable end of the pushing cylinder is connected to the rotating rod through a connecting block, the pushing cylinder is used to drive the rotating rod to rotate, and the pressure seat is used to rotate the rotating rod and press it on the plywood workpiece.

[0020] By adopting the above-mentioned technical solutions, in the automatic plywood nailing device, the upper push mechanism includes an upper push block and a lifting cylinder, the upper push block is arranged below the punching rod, the movable end of the lifting cylinder is arranged upward and connected to the upper push block, and the upper push block is used to flatten the bottom of the rivet on the bottom surface of the plywood workpiece.

[0021] By adopting the above-mentioned technical solutions, in the automatic plywood nailing device, the dual-axis moving mechanism includes an X-axis moving component and a Y-axis moving component, the X-axis moving component is arranged on the machine base, the movable end of the X-axis moving component is connected to the Y-axis moving component, and the movable end of the Y-axis moving component is connected to the positioning fixture.

[0022] By adopting the above-mentioned technical solutions, in the automatic plywood nailing device, the number of the nail feeding mechanism, the nail clamping mechanism and the nail pressing mechanism are all three.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The nail feeding mechanism of the utility model can transfer the rivet to the nail clamping mechanism, and the nail clamping mechanism can clamp the rivet to prevent the rivet from shifting or tilting during the nailing process. The nail pressing mechanism can punch the rivet to press the rivet into the plywood workpiece in the positioning fixture, thereby completing the nailing action. The lifting mechanism can support the rivet and cooperate with the punching action of the punching rod to flatten the bottom of the rivet to fix it in the plywood, forming a reliable riveted connection; the punching rod in the nail pressing mechanism can move downward with the swing of the swing arm, and press the rivet from the nail clamping mechanism into the plywood workpiece in the positioning fixture through the punching force, and then the punching rod automatically resets under the elastic force of the spring, thereby improving the punching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the installation structure of the nail pressing mechanism and the lifting mechanism of the utility model;

[0029] Figure 3 This is a schematic structural diagram of the nail pressing mechanism of the present utility model;

[0030] Figure 4 This is a schematic diagram of the partial structure of the nail pressing mechanism of the present utility model;

[0031] Figure 5 This is a schematic structural diagram of the nail clamping mechanism of the present utility model;

[0032] Figure 6 This is a schematic diagram of the positioning fixture structure of the present utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figures 1 to 6 As shown, the embodiment of the present utility model provides an automatic plywood nailing device, comprising a machine base 1, a biaxial moving mechanism 2, a positioning fixture 3, a nail feeding mechanism 4, a nail clamping mechanism 5, a nail pressing mechanism 6 and a lifting mechanism 7;

[0037] The biaxial moving mechanism 2 is arranged on the machine base 1, and the positioning fixture 3 is connected to the biaxial moving mechanism 2. The positioning fixture 3 is used to clamp the plywood workpiece to be nailed; the biaxial moving mechanism 2 can move in the X-axis and Y-axis directions, thereby realizing the precise positioning of the plywood workpiece on the plane to adapt to different nailing position requirements. The positioning fixture 3 can fix the plywood workpiece to keep it stable during the nailing process to prevent movement or dislocation, thereby improving the accuracy of the nailing process.

[0038] A mounting frame 10 is provided above the machine base 1, the nail feeding mechanism 4 is provided at the side end of the mounting frame 10, the nail clamping mechanism 5 is provided at the discharge end of the nail feeding mechanism 4, the nail feeding mechanism 4 is used to move the rivets into the nail clamping mechanism 5, the nail clamping mechanism 5 is used to clamp the rivets, the nail pressing mechanism 6 is provided above the nail clamping mechanism 5, the upper mechanism 7 is provided on the machine base 1 directly below the nail pressing mechanism 6, and the nail pressing mechanism 6 is used to punch the rivets on the nail clamping mechanism 5 On the plywood workpiece of the positioning fixture 3; when the rivet is transported to the discharge end of the nail feeding mechanism 4, the clamping mechanism 5 will clamp the rivet to prevent the rivet from shifting or tilting during the nailing process, and the nail pressing mechanism 6 can punch the rivet to press the rivet into the plywood workpiece in the positioning fixture 3, thereby completing the nailing action, and the lifting mechanism 7 can support the rivet and cooperate with the punching action of the nail pressing mechanism 6 to flatten the bottom of the rivet so that it is fixed in the plywood to form a reliable riveting.

[0039] The nail pressing mechanism 6 includes a driving motor 61, an eccentric block 62, a swing arm 63, a spring 64, a punching rod 65 and a guide seat 66. The guide seat 66 is located above the nail clamping mechanism 5. A guide hole 660 is provided in the guide seat 66 for guiding the movement of the punching rod 65. One end of the swing arm 63 is connected to the top of the punching rod 65, and the other end of the swing arm 63 is connected to the spring 64 through a connecting block. A slide groove 630 is provided on the swing arm 63 for accommodating the eccentric block 62. The output shaft of the driving motor 61 is connected to the eccentric block 62, and the punching rod 65 is used to move up and down with the swing of the swing arm 63. The eccentric block 62 is connected to the output shaft of the drive motor 61. When the drive motor 61 rotates, it can drive the swing arm 63 to produce a reciprocating swinging effect, thereby driving the punching rod 65 to perform up and down punching movement. A guide hole 660 is provided in the guide seat 66. The punching rod 65 moves up and down in the guide hole 660, thereby improving the stability of the vertical movement of the punching rod 65. As the swing arm 63 swings, the punching rod 65 will move downward and press the rivet from the clamping mechanism 5 into the plywood workpiece in the positioning fixture 3 through the punching force. Then the punching rod 65 automatically resets under the elastic force of the spring 64, thereby improving the punching efficiency.

[0040] like Figure 2 and Figure 3 As shown, the nail feeding mechanism 4 further includes a feed hopper 41, a nail separation tray 42, and a feed track 43. The feed hopper 41 is located above the nail separation tray 42. The feed end of the feed track 43 is connected to the bottom of the nail separation tray 42, and the discharge end of the feed track 43 is connected to the nail clamping mechanism 5. The feed track 43 is used to sequentially transport the rivets on the nail separation tray 42 into the nail clamping mechanism 5. The nail separation tray 42 can neatly arrange the rivets from the feed hopper 41 and allow them to enter the feed track 43 in the correct direction. The feed track 43 can move the rivets along a fixed path to prevent the rivets from falling off, getting stuck, or deviating during transportation, so that the rivets can be continuously fed into the nail clamping mechanism 5.

[0041] like Figure 2 and Figure 4As shown, further, the nail clamping mechanism 5 includes a nail clamping head 51, a swing seat 52, and a roller 53. The top of the swing seat 52 is rotatably connected to the mounting frame 10 via a pin. The nail clamping head 51 is provided at the bottom of the swing seat 52. The nail clamping head 51 is provided with a clamping opening 510 for placing a rivet. The roller 53 is provided in the swing seat 52 and is used to slide against the punching rod 65. The roller 53 is in sliding contact with the punching rod 65. When the punching rod 65 moves downward, the roller 53 can drive the swing seat 52 to swing at a certain angle along with the movement of the punching rod 65, so that the swing seat 52 can adjust its position to ensure that the clamping opening 510 is aligned directly below the punching rod 65, ensuring that the rivet can be accurately pressed into the preset position, thereby effectively improving the nailing accuracy.

[0042] like Figure 1 and Figure 6 As shown, further, the positioning fixture 3 includes a positioning frame 31, a first rubber pad 32, a second rubber pad 33, a slide rail 34, a locking bolt 35 and a pressing assembly 36. The positioning frame 31 is connected to the dual-axis moving mechanism 2. The first rubber pad 32 is arranged on both sides of the positioning frame 31. The slide rail 34 is extended along the width direction of the positioning frame 31. The bottom of the second rubber pad 33 is movably connected to the slide rail 34 through a slider 37. The locking bolt 35 passes through the slider 37 and abuts against the slide rail 34. The locking bolt 35 is used to lock the second rubber pad 33. The first rubber pad 32 and the second rubber pad 33 are used to support the plywood workpiece. The first rubber pad 32 and the second rubber pad 33 can fit tightly against the bottom surface of the plywood workpiece, which can not only prevent the plywood workpiece from sliding during nailing, but also protect the plywood and avoid scratches or indentations during stamping. The second rubber pad 33 is connected to the slide rail 34 via a slider 37, allowing it to move along the width of the positioning frame 31. This allows the spacing between the first and second rubber pads 32, 33 to be adjusted, allowing the positioning fixture 3 to accommodate plywood workpieces of varying widths. Once the second rubber pad 33 is positioned, it can be secured with a locking bolt 35 to prevent it from accidentally sliding.

[0043] The pressing assembly 36 is disposed at a side end of the positioning frame 31 and is used to press the plywood workpiece against the first rubber pad 32 and the second rubber pad 33. During the nailing process, the punching rod 65 exerts a certain impact force on the plywood workpiece. The pressing assembly 36 applies a certain pressure to the plywood workpiece to reduce the impact of this impact force and prevent the plywood workpiece from shifting due to vibration.

[0044] like Figure 6As shown, further, the pressing assembly 36 includes a pushing cylinder 361, a rotating rod 362 and a pressure seat 363. The rotating rod 362 is extended along the length direction of the positioning frame 31, and several pressure seats 363 are arranged on the rotating rod 362. The pushing cylinder 361 is arranged at the side end of the positioning frame 31, and the movable end of the pushing cylinder 361 is connected to the rotating rod 362 through a connecting block. The pushing cylinder 361 is used to drive the rotating rod 362 to rotate, and the pressure seat 363 is used to rotate the rotating rod 362 and press it on the plywood workpiece. With this arrangement, the plywood workpiece can be stably clamped in the positioning fixture 3.

[0045] like Figure 1 and Figure 2 As shown, the lifting mechanism 7 further includes an upper lifting block 71 and a lifting cylinder 72. The upper lifting block 71 is disposed below the punch rod 65. The movable end of the lifting cylinder 72 is disposed upward and connected to the upper lifting block 71. The upper lifting block 71 is used to flatten the bottom of the rivet against the bottom surface of the plywood workpiece. During the nailing operation, when the punch rod 65 presses the rivet into the plywood from above, the upper lifting block 71 provides support and applies reverse pressure from below, flattening the bottom of the rivet against the bottom surface of the plywood workpiece, thereby firmly embedding it into the plywood and preventing it from loosening.

[0046] like Figure 1 As shown, the dual-axis movement mechanism 2 further includes an X-axis movement assembly 21 and a Y-axis movement assembly 22. The X-axis movement assembly 21 is mounted on the machine base 1. The movable end of the X-axis movement assembly 21 is connected to the Y-axis movement assembly 22, and the movable end of the Y-axis movement assembly 22 is connected to the positioning fixture 3. Through the coordinated movement of the X-axis movement assembly 21 and the Y-axis movement assembly 22, automatic positioning and adjustment of the plywood workpiece can be achieved, reducing the tedious manual intervention and meeting complex production needs and customized processing requirements.

[0047] Furthermore, there are three groups of the nail feeding mechanism 4, the nail clamping mechanism 5, and the nail pressing mechanism 6. The synchronous operation of multiple groups of mechanisms allows all rivets to be nailed at the same time, reducing positioning errors or workpiece movement caused by time differences, avoiding stress concentration caused by single-point nailing, and thus improving the stability and precision of the overall structure.

[0048] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plywood automatic nailing device, characterized in that: It includes a machine base, a biaxial moving mechanism, a positioning fixture, a nail feeding mechanism, a nail clamping mechanism, a nail pressing mechanism and a lifting mechanism; The biaxial moving mechanism is arranged on the machine base, and the positioning fixture is connected to the biaxial moving mechanism, and the positioning fixture is used to clamp the plywood workpiece to be nailed; A mounting frame is provided above the machine base, the nail feeding mechanism is provided at a side end of the mounting frame, the nail clamping mechanism is provided at a discharge end of the nail feeding mechanism, the nail feeding mechanism is used to transfer the rivets into the nail clamping mechanism, and the nail clamping mechanism is used to clamp the rivets; The nail pressing mechanism is arranged above the nail clamping mechanism, and the lifting mechanism is arranged on the machine base directly below the nail pressing mechanism. The nail pressing mechanism is used to punch the rivets on the nail clamping mechanism onto the plywood workpiece of the positioning fixture; The nail pressing mechanism includes a driving motor, an eccentric block, a swing arm, a spring, a punching rod and a guide seat. The guide seat is located above the nail clamping mechanism. A guide hole is provided in the guide seat for guiding the movement of the punching rod. One end of the swing arm is connected to the top of the punching rod, and the other end of the swing arm is connected to the spring through a connecting block. A sliding groove is provided on the swing arm for accommodating the eccentric block. The output shaft of the driving motor is connected to the eccentric block. The punching rod is used to move up and down with the swing of the swing arm.

2. The automatic plywood nailing device according to claim 1, characterized in that: The nail feeding mechanism includes a feeding hopper, a nail separation plate and a feeding track; The feed hopper is arranged above the nail plate, the feed end of the feed track is connected to the bottom of the nail plate, and the discharge end of the feed track is connected to the nail clamping mechanism. The feed track is used to transport the rivets on the nail plate to the nail clamping mechanism in sequence.

3. The automatic plywood nailing device according to claim 1, characterized in that: The nail clamping mechanism includes a nail clamping head, a swing seat and a roller; The top of the swing seat is rotatably connected to the mounting frame via a pin shaft, the clamping head is provided at the bottom of the swing seat, and the clamping head is provided with a clamping opening for placing rivets, and the roller is provided in the swing seat, and the roller is used to slide and abut against the punching rod.

4. The automatic plywood nailing device according to claim 1, characterized in that: The positioning fixture includes a positioning frame, a first rubber pad, a second rubber pad, a slide rail, a locking bolt and a pressing assembly; The positioning frame is connected to the biaxial moving mechanism, the first rubber pads are arranged on both sides of the positioning frame, the slide rails extend along the width direction of the positioning frame, the bottom of the second rubber pad is movably connected to the slide rails via a slider, the locking bolt passes through the slider and abuts against the slide rail, and the locking bolt is used to lock the second rubber pad; The first rubber pad and the second rubber pad are used to support the plywood workpiece. The pressing assembly is provided at the side end of the positioning frame. The pressing assembly is used to press the plywood workpiece onto the first rubber pad and the second rubber pad.

5. The automatic plywood nailing device according to claim 4, characterized in that: The pressing assembly includes a pushing cylinder, a rotating rod and a pressing seat; The rotating rod is extended along the length direction of the positioning frame, a plurality of pressure seats are arranged on the rotating rod, the pushing cylinder is arranged at the side end of the positioning frame, and the movable end of the pushing cylinder is connected to the rotating rod through a connecting block, the pushing cylinder is used to drive the rotating rod to rotate, and the pressure seat is used to rotate the rotating rod and press it on the plywood workpiece.

6. The automatic plywood nailing device according to claim 3, characterized in that: The lifting mechanism includes an upper lifting block and a lifting cylinder. The upper lifting block is arranged below the punching rod. The movable end of the lifting cylinder is arranged upward and connected to the upper lifting block. The upper lifting block is used to flatten the bottom of the rivet on the bottom surface of the plywood workpiece.

7. The automatic plywood nailing device according to claim 1, characterized in that: The dual-axis moving mechanism includes an X-axis moving component and a Y-axis moving component. The X-axis moving component is arranged on the machine base. The movable end of the X-axis moving component is connected to the Y-axis moving component. The movable end of the Y-axis moving component is connected to the positioning fixture.

8. The automatic plywood nailing device according to claim 1, characterized in that: The number of the nail feeding mechanism, the nail clamping mechanism and the nail pressing mechanism are all three.

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