Automatic nailing device and automatic nailing method

Abstract

The invention discloses an automatic nailing device and an automatic nailing method. The automatic nailing device comprises a three-axis driving mechanism, a driving mechanism and a driving mechanism, the fixing mechanism is connected with the three-axis driving mechanism; the automatic nailing mechanism is connected with the fixing mechanism, and the automatic nailing mechanism can be used for automatically nailing the mattress; the automatic feeding mechanism is connected with the fixing mechanism, the automatic feeding mechanism comprises a wheel disc assembly and a feeding driving assembly, the wheel disc assembly can fix coiled nailing strips, and the feeding driving assembly can drive the nailing strips to move to the automatic nailing mechanism from the wheel disc assembly. Through the arrangement of the automatic nailing mechanism and the automatic feeding mechanism, automatic nailing of the nailing device is achieved, the overall automation degree is high, manual participation is not needed in the whole nailing process, and therefore the labor intensity of workers and the labor cost are reduced while the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mattress production, and in particular to an automatic nailing device and an automatic nailing method. Background Art

[0002] A spring mattress generally includes a bed net composed of multiple springs, a steel frame mounted on the upper and lower parts of the bed net, and multiple support springs arranged between two steel frames. During the production and preparation of a spring mattress, a steel frame is installed on the edge of the spring mattress to enhance the support force of the edge of the mattress and prevent the edge of the mattress from collapsing during use. However, in the process of fixing the steel frame, nail guns are usually used manually to fix the steel frame and the spring mattress with fixing nails, which has a low degree of automation and affects the production efficiency of the spring mattress. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide an automatic nailing device to realize automatic nailing, improve the automation degree of nailing, and reduce the labor intensity and labor cost of workers.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: an automatic nailing device, comprising: Three-axis driving mechanism; A fixing mechanism, the fixing mechanism is connected to the three-axis driving mechanism; An automatic nailing mechanism, the automatic nailing mechanism is connected to the fixing mechanism, and the automatic nailing mechanism can automatically nail the mattress; An automatic feeding mechanism is connected to the fixing mechanism, and the automatic feeding mechanism comprises a wheel assembly and a feeding drive assembly, wherein the wheel assembly can fix the rolled nail strip, and the feeding drive assembly can drive the nail strip to move from the wheel assembly to the automatic nailing mechanism.

[0005] ① Through the setting of automatic nailing mechanism and automatic feeding mechanism, the automatic nailing of the nailing device is realized. The overall degree of automation is high and the whole nailing process does not require manual participation, thereby improving work efficiency while reducing the labor intensity and labor costs of workers.

[0006] ② Through the setting of the wheel assembly, the nail strip can be rolled up and wound on the wheel assembly, which can continuously feed the automatic nailing mechanism, increase the number of fixed nails fed at one time, improve the feeding efficiency, and thus improve the nailing efficiency.

[0007] ③ The three-axis driving mechanism is connected to the automatic nailing mechanism and the automatic feeding mechanism through a fixed component. The three-axis driving mechanism can simultaneously drive the automatic feeding mechanism and the automatic nailing mechanism to move synchronously in the X-axis direction, the Y-axis direction and the Z-axis direction, and adjust the position relationship between the automatic nailing mechanism and the spring mattress in real time according to the nailing requirements to realize nailing at different positions of the spring mattress.

[0008] Further, the three-axis driving mechanism includes a Z-axis driving assembly, the Z-axis driving assembly includes a Z-axis guide rod, the Z-axis guide rod is perpendicular to the horizontal plane, a Z-axis slider is arranged on the Z-axis guide rod, and the Z-axis slider slides along the Z-axis guide rod under the action of the Z-axis motor; The fixing mechanism includes a first fixing plate, which is connected to the Z-axis slider. The height of the first fixing plate in the vertical direction is smaller than the height of the Z-axis slider in the vertical direction. A plurality of connecting holes are provided on the first fixing plate and the Z-axis slider. The first fixing plate and the Z-axis slider are connected and fixed by fixing pins passing through the connecting holes.

[0009] By providing a plurality of connection holes, the connection position between the first fixing plate and the Z-axis slider can be changed, thereby realizing adjustment of the height of the first fixing plate in the vertical direction.

[0010] By setting the height of the first fixed plate in the vertical direction to be smaller than the height of the Z-axis slider in the vertical direction, it is ensured that the upper and lower ends of the first fixed plate can be connected to the Z-axis slider, so that the connection between the first fixed plate and the Z-axis slider is more secure. In addition, the height of the first fixed plate in the vertical direction can be adjusted by connecting the first fixed plate and the Z-axis slider at different positions, and the height of the first fixed plate can be roughly adjusted. The height of the first fixed plate can then be fine-tuned by the Z-axis drive assembly. By combining rough adjustment and fine adjustment, it is ensured that the automatic nailing mechanism can smoothly nail and fix the mattress.

[0011] Furthermore, the wheel assembly includes a roller and a roller, and also includes an outer chuck and an inner chuck, wherein the outer chuck is sleeved on the roller, and the inner chuck is sleeved on the roller and located on the inner side of the outer chuck; the inner chuck is arranged parallel to the outer chuck and the center lines coincide with each other, and the distance between the inner chuck and the outer chuck is greater than the thickness of the snap plate. The snap plate is used to wind the nail strip so that the nail strip is wound on the snap plate in a roll, and the nail strip is limited by the facilities of the outer chuck and the inner chuck so that the nail strip can be stably fed.

[0012] Furthermore, the automatic feeding mechanism includes a detection member, which is fixed to the second fixing plate through a bracket, and is located at the discharge side of the wheel assembly. When the detection member cannot detect the C-shaped buckle, an alarm can be realized through the control system and materials can be replenished in time to improve production efficiency.

[0013] Furthermore, the automatic feeding mechanism also includes a feeding guide channel, which includes a feeding guide groove and a feeding guide rod. The feeding guide groove is located at one end close to the wheel assembly, and the nail strip can be located in the feeding guide groove. The width of the feeding guide groove is greater than the width of the nail strip.

[0014] The feeding guide rod is located at one end close to the automatic nailing mechanism. The shape of the feeding guide rod is matched with the shape of the nail strip. The nail strip abuts against the feeding guide rod and can slide along the direction of the feeding guide rod.

[0015] Furthermore, the automatic nailing mechanism includes a driving cylinder, which can drive the driving rod to extend and retract; a nail pushing assembly and a clamping assembly are provided at the end of the driving rod, and the driving rod can push the fixing nail to move in the direction of the spring mattress through the nail pushing assembly, and then clamp the fixing nail through the clamping assembly.

[0016] Furthermore, the push pin assembly includes an ejector, one end of which is connected to the driving rod and the other end of which extends toward the spring mattress; a groove is provided at one end of the ejector close to the fixing pin for limiting the fixing pin.

[0017] Furthermore, the clamping assembly includes two mirror-image-arranged clamping jaws, each of which includes a clamping portion and a driving portion. A through hole is provided between the clamping portion and the driving portion, and a pin is passed through the through hole to connect the clamping plate. The two clamping jaws can swing in opposite directions with the through hole as the center, driving the clamping portion to clamp the fixing nail.

[0018] Furthermore, the driving part is an arc-shaped structure, and the distance between the two driving parts close to the clamping part is greater than the distance between the two driving parts close to the driving rod. A clamping roller is provided at the end of the driving rod. When the clamping roller retracts backward under the action of the driving rod, it can apply outward pressure to the driving part, thereby increasing the distance between the driving parts, thereby reducing the distance between the clamping parts, and tightening the fixing nail.

[0019] An automatic nailing method, which uses the automatic nailing device described above to perform automatic nailing, comprises the following steps: Step S1, adjusting the position of the automatic nailing mechanism through the three-axis driving mechanism so that the clamping end of the automatic nailing mechanism is located at the position to be nailed on the spring mattress; Step S2, driving the nail strip through the feeding drive mechanism, so that the nail strip moves along the feeding guide channel to the side of the automatic nailing mechanism close to the spring mattress; Step S3, the driving cylinder drives the driving rod to move toward the mattress, and the fixing nail is pushed out to the edge of the spring mattress by the ejector; Step S4, the driving cylinder drives the driving rod to move away from the mattress, and the clamping roller squeezes the driving part, so that the clamping part squeezes the fixing nail, completing the nailing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A three-dimensional diagram of an automatic nailing device according to an embodiment of the present invention; Figure 2 A three-dimensional diagram of an automatic nailing device from another perspective according to an embodiment of the present invention; Figure 3 A three-dimensional diagram of a nail strip according to an embodiment of the present invention; Figure 4 A three-dimensional diagram of an automatic feeding mechanism according to an embodiment of the present invention; Figure 5 A three-dimensional diagram of a wheel assembly according to an embodiment of the present invention; Figure 6 A schematic diagram of the connection between a roller shaft and a roller wheel according to an embodiment of the present invention; Figure 7 A schematic diagram of the connection between the roller shaft and the baffle plate according to an embodiment of the present invention; Figure 8 for Figure 2 Partial magnified image; Fig. 9 A three-dimensional diagram of an automatic nailing mechanism according to an embodiment of the present invention; Fig.10 FIG. 4 is a three-dimensional diagram of a clamping jaw according to an embodiment of the present invention.

[0023] In the figure: 1. Three-axis driving mechanism; 11. X-axis driving assembly; 12. Y-axis driving assembly; 13. Z-axis driving assembly; 131. Z-axis slider; 132. Z-axis guide rod; 2. Fixing mechanism; 21. First fixing plate; 22. Second fixing plate; 23. Third fixing plate; 3. Automatic feeding mechanism; 31. Wheel assembly; 311. Roller; 312. Roller; 313. External retaining spring; 314. Internal retaining spring; 315. External chuck; 316. Internal chuck; 317. Fixing ring; 318. Bolt; 319. Stop plate; 32. Detection member; 33. Feeding guide channel; 331. Feeding guide groove; 332. Feeding guide rod; 34. Feeding drive motor; 35. Driving shaft; 36. Driven shaft; 4. Automatic nailing mechanism; 41. Driving cylinder; 42. Conducting assembly; 43. Nailing fixing plate; 44. Driving rod; 45. First ejector; 46. Second ejector; 47. Clamping roller; 48. Clamping assembly; 481. Driving part; 4811. Driving end; 482. Clamping part; 4821. Guide groove; 4822. Clamping end; 483. Through hole; 5. Nail strip; 51. Fixing nail. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0025] In addition, the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article, unless otherwise specified, generally means that the associated objects before and after are in an "or" relationship.

[0026] See attached Figure 1-3 As shown, an automatic nailing device in this embodiment includes a three-axis driving mechanism 1, on which a fixing mechanism 2 is arranged, and the fixing mechanism 2 is connected to the automatic feeding mechanism 3 and the automatic nailing mechanism 4 at the same time. The three-axis driving mechanism 1 can simultaneously drive the automatic feeding mechanism 3 and the automatic nailing mechanism 4 to move synchronously in the X-axis direction, the Y-axis direction and the Z-axis direction through the fixing mechanism 2, so as to realize nailing at different positions of the spring mattress.

[0027] In some embodiments, the three-axis drive mechanism 1 includes an X-axis drive assembly 11, which includes an X-axis guide rod. The X-axis guide rod is parallel to the edge of the mattress, and an X-axis slider is provided on the X-axis guide rod. The X-axis slider slides along the X-axis guide rod under the action of the X-axis motor. The X-axis drive assembly 11 can drive the automatic feeding mechanism 3 and the automatic nailing mechanism 4 to move from one end of the spring mattress frame to the other end, thereby realizing the nailing and fixing of the spring mattress frame.

[0028] The three-axis driving mechanism 1 includes a Y-axis driving assembly 12, which is fixedly connected to an X-axis slider. When the X-axis slider slides along the X-axis guide rod, it drives the Y-axis driving assembly 12 to slide along the X-axis guide rod. The X-axis driving assembly 11 includes a Y-axis guide rod, which is parallel to the horizontal plane and perpendicular to the X-axis guide rod. A Y-axis slider is arranged on the Y-axis guide rod, and the Y-axis slider slides along the Y-axis guide rod under the action of the Y-axis motor. Through the setting of the Y-axis driving assembly 12, the horizontal distance between the automatic feeding mechanism 3 and the automatic nailing mechanism 4 and the spring mattress frame is adjusted, so that the automatic nailing mechanism 4 can accurately nail the frame of the spring mattress.

[0029] The three-axis driving mechanism 1 includes a Z-axis driving assembly 13, which is fixedly connected to a Y-axis slider. When the Y-axis slider slides along the Y-axis guide rod, it drives the Z-axis driving assembly 13 to slide along the Y-axis guide rod. The Z-axis driving assembly 13 includes a Z-axis guide rod, and the Z-axis guide rod 132 is perpendicular to the horizontal plane. A Z-axis slider 131 is arranged on the Z-axis guide rod 132, and the Z-axis slider 131 slides along the Z-axis guide rod 132 under the action of the Z-axis motor.

[0030] In some embodiments, the fixing mechanism 2 is connected to the Z-axis slider 131, and the fixing mechanism 2 is driven to move in the X-axis, Y-axis and Z-axis directions through the joint action of the X-axis driving assembly 11, the Y-axis driving assembly 12 and the Z-axis driving assembly 13.

[0031] In some embodiments, the fixing mechanism 2 includes a first fixing plate 21, the first fixing plate 21 is connected to the Z-axis slider 131, the height of the first fixing plate 21 in the vertical direction is less than the height of the Z-axis slider 131 in the vertical direction, and a plurality of connection holes are provided on the first fixing plate 21 and the Z-axis slider 131, and the first fixing plate 21 and the Z-axis slider 131 are connected and fixed by fixing pins passing through the connection holes. By providing a plurality of connection holes, the connection position of the first fixing plate 21 and the Z-axis slider 131 can be changed, so that the height of the first fixing plate 21 in the vertical direction can be adjusted.

[0032] By setting the height of the first fixing plate 21 in the vertical direction to be smaller than the height of the Z-axis slider 131 in the vertical direction, it is ensured that the upper and lower ends of the first fixing plate 21 can be connected to the Z-axis slider 131, so that the connection between the first fixing plate 21 and the Z-axis slider 131 is more firmly established. In addition, the height of the first fixing plate 21 in the vertical direction can be adjusted by connecting the first fixing plate 21 and the Z-axis slider 131 at different positions, and the height of the first fixing plate 21 can be roughly adjusted. Then, the height of the first fixing plate 21 can be finely adjusted by the Z-axis driving assembly 13. By combining the rough adjustment and the fine adjustment, it is ensured that the automatic nailing mechanism 4 can nail and fix the mattress smoothly.

[0033] In some embodiments, the fixing mechanism 2 includes a second fixing plate 22 fixedly connected to the first fixing plate 21 , one end of the second fixing plate 22 is connected to the first fixing plate 21 , and the other end extends away from the mattress, for fixing the automatic feeding mechanism 3 .

[0034] In some embodiments, the fixing mechanism 2 includes a third fixing plate 23 fixedly connected to the first fixing plate 21, one end of the third fixing plate 23 is connected to the first fixing plate 21, and the other end extends toward the direction close to the mattress, and is used to fix the automatic nailing mechanism 4. The first fixing plate 21 connected to the three-axis driving mechanism 1 is arranged between the automatic feeding mechanism 3 and the automatic nailing mechanism 4, which improves the stability of the connection between the fixing mechanism 2 and the three-axis driving mechanism 1.

[0035] In some embodiments, two second fixed plates 22 are provided, which are respectively connected to the left and right ends of the first fixed plate 21, and the two second fixed plates 22 are arranged in parallel. A avoidance space is formed between the two second fixed plates 22. The Y-axis drive mechanism and the Z-axis drive mechanism are respectively located in the avoidance space between the two second fixed plates 22, so that the nailing device as a whole is relatively compact. In addition, by setting up two second fixed plates 22, the load-bearing capacity of a single second fixed plate 22 is reduced, the risk of deformation of the second fixed plate 22 is reduced, and the service life of the nailing device is improved.

[0036] See attached Figure 4-7As shown, in some embodiments, the automatic feeding mechanism 3 includes a wheel assembly 31, the wheel assembly 31 includes a roller 311 and a roller 312, the roller 312 is rotatably mounted on the roller 311, and the two sides of the roller 312 are respectively provided with an outer retaining spring 313 and an inner retaining spring 314; the outer chuck 315 is mounted on the roller 312, and the inner chuck 316 is mounted on the roller 312 and located on the inner side of the outer chuck 315; the inner chuck 316 is arranged parallel to the outer chuck 315 and the center lines coincide with each other, and the distance between the inner chuck 316 and the outer chuck 315 is greater than the thickness of the snap plate; when installed, the center position of the snap plate is mounted on the roller 312, and the snap plate is located between the outer chuck 315 and the inner chuck 316. The stopper 319 is mounted on the roller 312 and located on the outer side of the outer chuck 315. The wheel assembly 31 is disposed on the second fixing plate 22 , and the second fixing plate 22 and the wheel assembly 31 are connected via a roller 311 .

[0037] In some embodiments, the outer side surface of the inner chuck 316 and the outer side surface of the outer chuck 315 are both provided with a group of reinforcing ribs, and each group of reinforcing ribs is provided with a plurality of reinforcing ribs and are evenly distributed around the center line of the connecting shaft. The provision of reinforcing ribs can improve the strength of the inner chuck 316 and the outer chuck 315 and improve the stability of the structure. The number of reinforcing ribs in each group is 4 to 8. The inner chuck 316 and the outer chuck 315 are both provided with a plurality of weight-reducing holes, and the weight-reducing holes and the reinforcing ribs are spaced apart from each other. The provision of the weight-reducing holes can reduce the body weight of the inner chuck 316 and the outer chuck 315, and the weight-reducing holes and the reinforcing ribs are spaced apart from each other, which can reduce the weight while maintaining the strength and stability of the structure.

[0038] In some embodiments, the baffle plate 319 is locked on the roller 312 by bolts 318. Locking the baffle plate 319 by bolts 318 can achieve a more stable blocking effect and facilitate disassembly and installation. Two bolts 318 are symmetrically arranged, and the bolts 318 are knurled high-head bolts 318. The knurled high-head bolts 318 can withstand greater tension to ensure the firmness of the connection; and can provide good matching force, so that the connection between the bolts 318 and the connecting parts is more stable. A fixing ring 317 is provided on the roller 311, and the fixing ring 317 is located on the outside of the baffle plate 319. The fixing ring 317 is adjustably locked on the roller 311. The setting of the fixing ring 317 can fix the roller 311.

[0039] A bearing is arranged between the roller 311 and the roller 312. The roller 311 is fixedly connected to the inner ring of the bearing, and the roller 312 is fixedly connected to the outer ring of the bearing. The arrangement of the bearing can make the rolling between the roller 311 and the roller 312 more flexible. The number of bearings can be set to two.

[0040] In some other embodiments, a damper is provided on the roller 311, and the damper is a rotation damper. The setting of the damper can control the speed of the rotational motion, provide a smooth resistance, and prevent excessive or uncontrolled rotation.

[0041] In some embodiments, the automatic feeding mechanism 3 includes a detection member 32, which is fixed to the second fixing plate 22 by a bracket, and is located on the discharge side of the wheel assembly 31. The detection member 32 is used to detect whether there is a nail strip output. In this embodiment, the nail strip 5 is a C-shaped buckle. When the detection member 32 cannot detect the C-shaped buckle, an alarm can be realized through the control system and materials can be replenished in time to improve production efficiency. The detection member 32 is a photoelectric switch sensor. The photoelectric switch sensor is convenient for the C-shaped buckle in the middle to pass through, which is convenient for detection and has a sensitive detection effect.

[0042] In some embodiments, the automatic feeding mechanism 3 also includes a feeding guide channel 33, one end of the feeding guide channel 33 is arranged close to the wheel assembly 31, and the other end is arranged in the automatic nailing mechanism 4, and the nail strip 5 moves along the feeding guide channel 33 and is transported from the automatic feeding mechanism 3 to the automatic nailing mechanism 4.

[0043] The wheel assembly 31, the automatic nailing mechanism 4 and the feeding guide channel 33 are all inclined and have the same angle with the horizontal plane. The height of the wheel assembly 31 in the vertical direction is higher than that of the automatic nailing mechanism 4. On the one hand, during the transportation of the nail strip 5, the gravity of the nail strip 5 itself can provide power, which is beneficial to the transportation of the nail strip 5; on the other hand, the automatic nailing mechanism 4 nails the mattress at a top-down angle, and the two clamping claws of the automatic nailing mechanism 4 are respectively located on the side and front of the mattress, which is beneficial to the nailing operation.

[0044] In some embodiments, the feeding guide channel 33 includes a feeding guide groove 331, and the feeding guide groove 331 is located at one end close to the wheel assembly 31. The nail strip 5 is located in the feeding guide groove 331, and the width of the feeding guide groove 331 is greater than the width of the nail strip 5. Under the action of the feeding drive mechanism, the nail strip 5 slides along the feeding guide groove 331.

[0045] In some embodiments, the feeding guide channel 33 includes a feeding guide rod 332, which is located at one end close to the automatic nailing mechanism 4. The shape of the feeding guide rod 332 matches the shape of the nail strip 5. The nail strip 5 abuts against the feeding guide rod 332 and slides along the direction of the feeding guide rod 332. For example, in this embodiment, the fixing nail 51 is in a C-shaped buckle shape, and the nail strip 5 can half cover the feeding guide rod 332. Under the action of the feeding drive assembly, the nail strip 5 can slide along the feeding guide rod 332.

[0046] The feeding guide rod 332 can position the nail strip 5 more accurately relative to the feeding guide groove 331, ensuring that the automatic nailing mechanism 4 can accurately drive and clamp the fixed nail 51; the feeding guide groove 331 relative to the feeding guide rod 332 can reduce the friction during the driving process of the nail strip 5, reduce the resistance during the feeding process, and facilitate the feeding. By setting the feeding guide groove 331 at one end close to the wheel assembly 31 and setting the feeding guide rod 332 at one end close to the automatic nailing mechanism 4, the accuracy of the position of the fixed nail 51 is guaranteed, and the friction during the feeding process is reduced.

[0047] In some embodiments, the feeding drive assembly is arranged between the feeding guide groove 331 and the feeding guide rod 332, and the feeding drive assembly includes a feeding drive motor 34 and a driving shaft 35, and the feeding drive motor 34 can drive the driving shaft 35 to rotate. A driven shaft 36 is arranged on one side of the driving shaft 35, and a gap is left between the driven shaft 36 and the driving shaft 35, and the nail strip 5 passes through the gap. The driving shaft 35 and the driven shaft 36 clamp the nail strip 5, and the driving shaft 35 conveys the nail strip 5 during the rotation process.

[0048] The automatic feeding mechanism 3 can install the wound buckle disc onto the wheel assembly 31, and realize long-term continuous feeding by pulling the strip-shaped C-shaped buckle 1. The material replenishment interval is long and the feeding efficiency is high. It can meet the long-term continuous nailing needs of mattresses and provide technical support for the research and development of fully automatic nailing devices.

[0049] See attached Figure 8-10 As shown, in some embodiments, the automatic nailing mechanism 4 includes a driving cylinder 41, and the driving cylinder 41 can drive the driving rod 44 to extend and retract through the conductive component 42. A nail pushing component and a clamping component 48 are provided at the end of the driving rod 44. The driving rod 44 can push the fixing nail 51 to move toward the spring mattress through the nail pushing component, and then the fixing nail 51 is clamped by the clamping component 48, so that the fixing nail 51 fixes the mattress and the frame of the mattress.

[0050] In some embodiments, the pin pushing assembly includes a first ejector member 45, one end of the first ejector member 45 is connected to the driving rod 44, and the other end is connected to the second ejector member 46, the second ejector member 46 extends in the direction of the fixing pin 51, and a groove is provided at one end of the second ejector member 46 close to the fixing pin 51, which is used to limit the fixing pin 51, so that the fixing pin 51 is driven in the direction of the spring mattress under the action of the second ejector member 46, so that the fixing pin 51 falls off the nail strip 5.

[0051] In some embodiments, the clamping assembly 48 includes two mirror-image-arranged clamping jaws, each of which includes a clamping portion 482 and a driving portion 481. A through hole 483 is provided between the clamping portion 482 and the driving portion, and is connected to the nail fixing plate 43 through a pin passing through the through hole 483. The two clamping jaws can swing in opposite directions with the through hole 483 as the center, and the clamping portion 482 can clamp the fixing nail 51.

[0052] In some embodiments, the driving portion 481 is an arc-shaped structure, the distance between the two driving portions 481 near the clamping portion 482 is relatively large, and the distance between the two driving portions 481 gradually decreases towards the driving rod 44, and the distance is smallest at the driving end 4811 at the end of the driving portion 481. Two clamping rollers 47 are arranged side by side at the end of the driving rod 44, and the sum of the diameters of the two clamping rollers 47 is greater than the diameter of the driving rod 44, and is also greater than the distance between the two driving portions 481 in the natural rotation state. When the clamping roller 47 retracts backward under the action of the driving rod 44, it applies outward pressure to the driving portion 481, so that the distance between the driving portions 481 increases, thereby reducing the distance between the clamping portions 482, and pressing the fixing nail 51.

[0053] In some embodiments, a guide groove 4821 is provided on the inner side of the clamping portion 482, and the direction and size of the guide groove 4821 are adapted to the fixing nail 51. The fixing nail 51 slides along the guide groove 4821 to the clamping end 4822 during being driven by the second ejector 46. The setting of the guide groove 4821 limits the movement trajectory of the fixing nail 51, ensuring that the fixing nail 51 can be nailed at a preset position.

[0054] The driving rod 44 and the second ejector 46 are connected. When the driving rod 44 is driven forward, the second ejector 46 pushes out the fixing nail 51. When the driving rod 44 retracts backward, the driving part 481 is squeezed by the rolling wheel, so that the clamping part 482 clamps the fixing nail 51. The process of the driving rod 44 extending and retracting completes two actions, thereby improving the nailing efficiency. The driving rod 44 is driven by the cylinder, replacing the traditional manual nailing, freeing up labor and improving the nailing efficiency.

[0055] The automatic nailing method comprises the following steps: Step S1, adjusting the position of the automatic nailing mechanism 4 through the three-axis driving mechanism 1, so that the clamping end 4822 of the automatic nailing mechanism 4 is located at the position to be nailed on the spring mattress; Step S2, driving the nail strip 5 through the feeding drive mechanism, so that the nail strip 5 moves along the feeding guide channel 33 to the side of the automatic nailing mechanism 4 close to the spring mattress; Step S3, the driving cylinder 41 drives the driving rod 44 to move toward the mattress, and the fixing pin 51 is pushed out to the edge of the spring mattress by the second ejecting member 46; Step S4, the driving cylinder 41 drives the driving rod 44 to move away from the mattress, and the clamping roller 47 squeezes the driving part 481, so that the clamping part 482 squeezes the fixing nail 51, and the nailing operation is completed.

[0056] In the description of the present invention, it is to be understood that it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0057] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic nailing device, characterized in that: include: Three-axis driving mechanism (1); A fixing mechanism (2), the fixing mechanism (2) being connected to the three-axis driving mechanism (1); An automatic nailing mechanism (4), the automatic nailing mechanism (4) being connected to the fixing mechanism (2), and the automatic nailing mechanism (4) being capable of automatically nailing the mattress; An automatic feeding mechanism (3) is connected to the fixing mechanism (2), the automatic feeding mechanism (3) comprising a wheel assembly (31) and a feeding drive assembly, the wheel assembly (31) being capable of fixing a rolled nail strip (5), and the feeding drive assembly being capable of driving the nail strip (5) to move from the wheel assembly (31) to the automatic nailing mechanism (4).

2. The automatic nailing device according to claim 1, characterized in that: The three-axis driving mechanism (1) comprises a Z-axis driving assembly (13), the Z-axis driving assembly (13) comprises a Z-axis guide rod (132), the Z-axis guide rod (132) is perpendicular to a horizontal plane, a Z-axis slider (131) is arranged on the Z-axis guide rod (132), and the Z-axis slider (131) slides along the Z-axis guide rod (132) under the action of a Z-axis motor; The fixing mechanism (2) comprises a first fixing plate (21), the first fixing plate (21) being connected to the Z-axis slider (131), the height of the first fixing plate (21) in the vertical direction being smaller than the height of the Z-axis slider (131) in the vertical direction, a plurality of connecting holes being provided on the first fixing plate (21) and the Z-axis slider (131), and fixing pins passing through the connecting holes are used to connect and fix the first fixing plate (21) and the Z-axis slider (131).

3. The automatic nailing device according to claim 1, characterized in that: The wheel assembly (31) comprises a roller (311) and a roller (312), and also comprises an outer chuck (315) and an inner chuck (316); the outer chuck (315) is sleeved on the roller (312), and the inner chuck (316) is sleeved on the roller (312) and located on the inner side of the outer chuck (315); the inner chuck (316) and the outer chuck (315) are arranged in parallel and their center lines coincide with each other, and the distance between the inner chuck (316) and the outer chuck (315) is greater than the width of the nail strip (5).

4. The automatic nailing device according to claim 1, characterized in that: The automatic feeding mechanism (3) comprises a detection member (32), the detection member (32) being fixed on the second fixing plate (22) via a bracket, and the detection member (32) being located on the discharge side of the wheel disc assembly (31).

5. The automatic nailing device according to claim 1, characterized in that: The automatic feeding mechanism (3) further comprises a feeding guide channel (33), wherein the feeding guide channel (33) comprises a feeding guide groove (331) and a feeding guide rod (332), wherein the feeding guide groove (331) is located at one end close to the wheel assembly (31), and the nail strip (5) can be located in the feeding guide groove (331), and the width of the feeding guide groove (331) is greater than the width of the nail strip (5); The feeding guide rod (332) is located at one end close to the automatic nailing mechanism (4); the shape of the feeding guide rod (332) matches the shape of the nail strip (5); the nail strip (5) abuts against the feeding guide rod (332) and can slide along the direction of the feeding guide rod (332).

6. The automatic nailing device according to claim 1, characterized in that: The automatic nailing mechanism (4) comprises a driving cylinder (41), and the driving cylinder (41) can drive a driving rod (44) to extend and retract; a nail pushing assembly and a clamping assembly (48) are provided at the end of the driving rod (44), and the driving rod (44) can push a fixing nail (51) to move in the direction of the spring mattress through the nail pushing assembly, and then clamp the fixing nail (51) through the clamping assembly (48).

7. The automatic nailing device according to claim 6, characterized in that: The push pin assembly comprises an ejector, one end of which is connected to the driving rod (44) and the other end of which extends towards the spring mattress; a groove is provided at one end of the ejector close to the fixing pin (51) for limiting the position of the fixing pin (51).

8. The automatic nailing device according to claim 6, characterized in that: The clamping assembly (48) includes two clamping jaws arranged in mirror image, and the clamping jaws include a clamping portion (482) and a driving portion (481). A through hole (483) is provided between the clamping portion (482) and the driving portion (481). A pin passes through the through hole (483) and is connected to the nail fixing plate (43). The two clamping jaws can swing in opposite directions with the through hole (483) as the center, thereby driving the clamping portion (482) to clamp the fixing nail (51).

9. The automatic nailing device according to claim 8, characterized in that: The driving portion (481) is an arc-shaped structure. The distance between the two driving portions (481) close to the clamping portion (482) is greater than the distance between the two driving portions (481) close to the driving rod (44). A clamping roller (47) is provided at the end of the driving rod (44). When the clamping roller (47) retracts backward under the action of the driving rod (44), it can apply outward pressure to the driving portion (481), thereby increasing the distance between the driving portions (481), thereby reducing the distance between the clamping portions (482), and pressing the fixing nail (51).

10. An automatic nailing method, characterized in that: The automatic nailing method is performed by the automatic nailing device according to any one of claims 1 to 9, and comprises the following steps: Step S1, adjusting the position of the automatic nailing mechanism (4) by means of the three-axis driving mechanism (1) so that the clamping end (4822) of the automatic nailing mechanism (4) is located at a position of the spring mattress to be nailed; Step S2, driving the nail strip (5) through the feeding drive mechanism, so that the nail strip (5) moves along the feeding guide channel (33) to the side of the automatic nailing mechanism (4) close to the spring mattress; Step S3, the driving cylinder (41) drives the driving rod (44) to move towards the spring mattress, and the fixing pin (51) is pushed out to the edge of the spring mattress by the ejection member; Step S4: The driving cylinder (41) drives the driving rod (44) to move in a direction away from the spring mattress, and the clamping roller (47) presses the driving part (481), so that the clamping part (482) presses the fixing nail (51), thereby completing the nailing operation.

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