Automatic nailing machine

Abstract

The invention relates to an automatic nailing machine which comprises a rotary table mechanism at least comprising a rotary table capable of intermittently and circumferentially rotating; the workpiece fixing mechanism comprises workpiece fixing assemblies circumferentially arranged at the upper end of the rotary disc, and the three workpiece fixing assemblies are driven by intermittent rotation of the rotary disc mechanism to be switched among a downward pressing station, a nailing station and an operation station; when an inlet and an outlet of a workpiece groove of the workpiece fixing assembly are shielded, closing-up wrapping cloth on the workpiece is flattened on the workpiece, and a plurality of nail holes are formed in the upper end of the workpiece groove in the nailing direction of the workpiece. The downward pressing mechanism is used for pressing the workpiece into the workpiece groove; the nailing mechanism is used for moving into each nail hole in the arrangement direction of the nail holes for nailing; and the jacking mechanism is correspondingly arranged below the workpiece fixing assembly on the operation station and used for jacking the nailed workpiece out of the workpiece groove. According to the scheme, the whole nailing process is time-saving and labor-saving, and the nailing accuracy and the nailing efficiency are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of furniture processing, in particular to an automatic nailing machine. Background Art

[0002] In the existing furniture processing, after the outer side of the wooden board is wrapped with cloth, the cloth needs to be closed. The existing closing method is to flatten the cloth and then nail it to the bed side board to complete the processing of the bed side board.

[0003] Existing automatic nailing machines, such as a Chinese invention patent with publication number CN217861822U, disclose an automatic nailing machine for hard-packed wood boards, comprising a longitudinally arranged nailing bracket and a transversely arranged conveying bracket, the upper part of the nailing bracket is provided with a detachable driving cylinder, the head of the driving cylinder is provided with a detachable nail gun, the top of the conveying bracket is provided with a plurality of transmission rollers, the inner edge of the conveying bracket is provided with a plurality of rotatable lateral guide wheels, the bottom of the conveying bracket is provided with a driving motor and a driving disc, the driving disc extends out of the transmission roller, and the nailing bracket is provided with a detachable flanging assembly. The automatic nailing machine for hard-packed wood boards nails neatly and beautifully, and the wrapping cloth of the hard-packed wood boards is neat, beautiful and wrinkle-free, and is particularly suitable for packaging operations of large-sized hard-packed wood boards.

[0004] When the automatic nailing machine in the above scheme nails the wooden board, the wooden board is not fixed by a device, and the nailing accuracy is low; and the automatic nailing machine has only one operating station, and it is necessary to wait for the previous wooden board to be nailed before continuing to the next one, so the conveying efficiency and nailing efficiency are very low. Summary of the invention

[0005] In order to solve the above-mentioned problems, the object of the present invention is to provide an automatic nailing machine, which can automatically press the workpiece into the workpiece groove and fix it, so that the nailing machine can have higher accuracy when nailing; and it can also automatically flatten the closing cloth on the workpiece to ensure that the closing cloth is nailed together with the workpiece during nailing, thereby further improving the accuracy; in addition, the nailing machine has three workstations, and the three workstations perform different operations at the same time, thereby greatly improving the conveying efficiency and nailing efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: An automatic nailing machine, characterized in that it includes a turntable mechanism, a workpiece fixing mechanism, a pressing mechanism, a nailing mechanism and a lifting mechanism, wherein: The turntable mechanism is arranged on the mounting platform and at least comprises a turntable capable of intermittent circumferential rotation; The workpiece fixing mechanism comprises a workpiece fixing assembly circumferentially arranged at the upper end of the turntable. The three groups of workpiece fixing assemblies are respectively switched between the pressing station, the nailing station and the operation station under the intermittent rotation of the turntable mechanism; a workpiece slot for accommodating the workpiece is provided on the workpiece fixing assembly, and an entrance and exit are formed at the upper end of the workpiece slot. The workpiece fixing assembly can open or cover the entrance and exit of the workpiece slot. When the entrance and exit of the workpiece slot are covered, the closing cloth on the workpiece is flattened on the workpiece, and a plurality of nail holes are formed at the upper end of the workpiece slot along the nailing direction of the workpiece; A pressing mechanism, correspondingly arranged above the workpiece fixing assembly on the pressing station, is used to press the workpiece into the workpiece slot; The nailing mechanism is correspondingly arranged above the workpiece fixing assembly on the nailing station and is used to move along the arrangement direction of the nail holes to nail into each nail hole; The lifting mechanism is correspondingly arranged below the workpiece fixing assembly on the operating station and is used to push the nailed workpiece out of the workpiece groove.

[0007] Preferably, the workpiece fixing assembly comprises two pairs of brackets which are arranged opposite to each other inside and outside and fixed on the turntable, a clamping plate is arranged between the two pairs of brackets, the workpiece slot is formed between the clamping plate and one of the pairs of brackets, the clamping plate is driven by a clamping cylinder to clamp the workpiece inserted into the workpiece slot, and the clamping cylinder is installed on the bracket; two baffles for overlapping and pressing the cloth covering the upper end of the workpiece are slidably arranged above the two pairs of brackets, the two baffles are staggered up and down, and a plurality of nail holes are opened on the upper baffle along the length direction of the workpiece slot; pushing cylinders are respectively arranged on the two pairs of brackets, and the moving end of the pushing cylinder is fixedly connected to the bottom of the baffle to drive the baffle to move inward and outward; When the two baffles are relatively close to each other and cover the entrance and exit of the workpiece slot in an alternating manner, the multiple nail holes on the upper baffle are located above the entrance and exit, and the lower baffle is provided with multiple recesses at positions corresponding to the multiple nail holes to facilitate the gun to nail the covering cloth to the upper end of the workpiece; when the two baffles are relatively far away from each other, the entrance and exit of the workpiece slot is open.

[0008] Preferably, the two baffles include a first baffle and a second baffle, the first baffle is provided with a plurality of nail holes, the edge of the second baffle is provided with a plurality of pressure strips along its length direction, and recesses are formed between adjacent pressure strips; the bottom surface of the first baffle is higher than the upper end of the second baffle, and when the entrance and exit of the workpiece slot are blocked, the pressure strips are pressed on top of the covering fabric at the closing part of the workpiece, and the recesses are correspondingly located directly below the nail holes.

[0009] Preferably, a guide rail is provided on the bracket, and a slider slidably matched with the guide rail is installed at the bottom of the baffle.

[0010] Preferably, a guide sleeve is installed on the bracket, and a guide rod is provided in the sliding sleeve inside the guide sleeve, and the guide rod is fixedly connected to the clamping plate.

[0011] Preferably, the pressing mechanism includes a fixed frame fixed on the mounting table, and a pressing cylinder arranged on the fixed frame. A pressing rod is fixed on the movable end of the pressing cylinder, and the pressing rod is directly above the workpiece slot. The pressing cylinder can drive the pressing rod to move downward to press the workpiece pre-loaded into the entrance and exit of the workpiece slot into the workpiece slot.

[0012] Preferably, sleeves are fixedly provided on the fixing frame at both sides of the downward pressure cylinder, a sliding rod is slidably passed through the sleeve, and the lower end of the sliding rod is fixedly connected to the pressure rod.

[0013] Preferably, the nailing mechanism includes a support frame arranged on a mounting table, a mounting beam is fixedly provided on the support frame above the workpiece fixing assembly, a servo motor, a slide rail and a connecting bracket slidingly matched with the slide rail are installed on the mounting beam, the servo motor drives the connecting bracket to reciprocate along the slide rail, a code nail gun is fixedly installed on the connecting bracket, and the muzzle of the code nail gun is located above the nail hole.

[0014] Preferably, the servo motor drives the code nail gun to move intermittently for nailing, and the distance the code nail gun moves between two movement intervals corresponds to the distance between two adjacent nail holes. During the movement interval, the code nail gun drives nails into the nail holes.

[0015] Preferably, the jacking mechanism includes two groups of jacking components; the jacking component is located below the operating station, including a fixed bracket fixed on the mounting table, a lifting cylinder arranged on the fixed bracket and a push rod arranged on the movable end of the lifting cylinder, and through holes communicating with the workpiece groove are opened on both sides below the workpiece fixing component on the turntable, and the through holes are arranged corresponding to the push rods; the lifting cylinder can drive the push rod to push into the workpiece groove along the through hole to push the upper end of the workpiece out of the entrance and exit of the workpiece groove.

[0016] The present invention adopts the above technical solution and has the following beneficial effects: ① The nailing machine has a workpiece groove, which can press the workpiece down and compact it in the workpiece groove to improve the accuracy of nailing.

[0017] ② The two baffles of the nailing machine are staggered, which can flatten the edge of the wrapping cloth from both sides, further improving the accuracy of nailing, ensuring that the edge of the wrapping cloth is nailed to the workpiece, and the notches on the two baffles correspond to the nail holes, so as not to affect the nailing effect.

[0018] ③. The nailing machine has three workstations, one for placing and collecting workpieces, one for pressing down and fixing the workpieces, and one for nailing into the nail holes. By performing different operations at the three workstations, the efficiency of workpiece transportation and nailing can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of an automatic nailing machine.

[0020] Figure 2 Schematic diagram of the layout of the jacking mechanism.

[0021] Figure 3 The figure is a schematic diagram of the top view of the structure of an automatic nailing machine.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the workpiece fixing component.

[0023] Figure 5 A schematic diagram of the three-dimensional structure of the workpiece fixing assembly from another perspective.

[0024] Figure 6 Schematic diagram of the arrangement of the pressure strips on the second baffle.

[0025] Figure 7 It is a cross-sectional schematic diagram of the workpiece fixing assembly at the operating station.

[0026] Figure 8 It is a schematic cross-sectional view of the workpiece fixing assembly on the press station.

[0027] Fig. 9 It is a cross-sectional schematic diagram of the workpiece fixing assembly at the nailing station.

[0028] Fig.10 for Fig. 9 Enlarged schematic diagram at point A in the middle.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the turntable mechanism.

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the nailing mechanism. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] like Figures 1 to 9 The automatic nailing machine shown in the figure comprises a turntable mechanism, a workpiece fixing mechanism, a pressing mechanism, a nailing mechanism and a lifting mechanism, wherein: The turntable mechanism is arranged on the mounting platform 100 and comprises at least a turntable 1 which can intermittently rotate in a circumferential direction; The workpiece fixing mechanism comprises a workpiece fixing assembly circumferentially arranged at the upper end of the turntable 1. The three groups of workpiece fixing assemblies are respectively switched between the pressing station, the nailing station and the operation station under the intermittent rotation of the turntable mechanism; the workpiece fixing assembly is provided with a workpiece slot 2 for accommodating the workpiece, and the upper end of the workpiece slot 2 forms an entrance and exit 200. The workpiece fixing assembly can open or cover the entrance and exit 200 of the workpiece slot 2. When the entrance and exit 200 of the workpiece slot 2 is covered, the closing cloth on the workpiece is flattened on the workpiece, and the upper end of the workpiece slot 2 forms a plurality of nail holes 3 along the nailing direction of the workpiece; A pressing mechanism, correspondingly arranged above the workpiece fixing assembly on the pressing station, is used to press the workpiece into the workpiece slot 2; The nailing mechanism is correspondingly arranged above the workpiece fixing assembly on the nailing station, and is used to move along the arrangement direction of the nail holes 3 to nail into each nail hole 3; The lifting mechanism is correspondingly arranged below the workpiece fixing assembly on the operating station and is used to push the nailed workpiece out of the workpiece groove 2.

[0037] In the above technical scheme, the workpiece fixing assembly is used to fix the workpiece 400, which can improve the accuracy of nailing. The workpiece groove thereon accommodates the workpiece. At the operating station, the entrance and exit of the workpiece groove is opened, and the staff inserts the lower part of the workpiece into the entrance and exit of the workpiece groove. The turntable mechanism drives the workpiece fixing assembly to rotate to the pressing station, and the pressing mechanism presses the workpiece into the workpiece groove. The workpiece fixing assembly covers the entrance and exit of the workpiece groove, and the closing cloth on the workpiece is flattened on the workpiece. A plurality of nail holes are formed at the upper end of the workpiece groove along the nailing direction of the workpiece. The turntable rotates to rotate the workpiece fixing assembly to the nailing mechanism station, and the nailing mechanism moves along the arrangement direction of the nail holes to nail each nail hole. The nailed workpiece is rotated to the original operating station along with the workpiece fixing assembly, and the lifting cylinder pushes the workpiece out. The staff takes out the nailed workpiece, and the three stations perform different operations, which can greatly improve the workpiece conveying and nailing efficiency. During the entire nailing process, the staff only needs to insert the lower part of the workpiece into the entrance and exit of the workpiece slot, and take out the workpiece after nailing. It is very convenient, saves time and effort, effectively reduces labor costs, and greatly improves nailing efficiency.

[0038] like Figure 4 , 5 As shown in Figure 7, the workpiece fixing assembly includes two pairs of brackets which are arranged opposite to each other inside and outside and fixed on the turntable 1, a clamping plate 5 is arranged between the two pairs of brackets, the workpiece slot 2 is formed between the clamping plate 5 and one of the pairs of brackets, the clamping plate 5 is driven by a clamping cylinder 50 to clamp the workpiece inserted into the workpiece slot, and the clamping cylinder 50 is installed on the bracket; two baffles for overlapping and pressing the cloth covering the upper end of the workpiece are slidably arranged above the two pairs of brackets, and the two baffles are staggered up and down, and a plurality of nail holes 3 are opened on the upper baffle along the length direction of the workpiece slot 2; a pushing cylinder is respectively arranged on the two pairs of brackets, and the moving end of the pushing cylinder is fixedly connected to the bottom of the baffle to drive the baffle to move inward and outward; When the two baffles are relatively close to each other and alternately shield the entrance and exit 200 of the workpiece slot 2, the multiple nail holes 3 on the upper baffle are above the entrance and exit 200, and the lower baffle is provided with multiple recesses 26 at positions corresponding to the multiple nail holes 3 to facilitate nailing the covering cloth to the upper end of the workpiece; when the two baffles are relatively far away, the entrance and exit 200 of the workpiece slot 2 is open.

[0039] In the above scheme, the two brackets of the workpiece fixing assembly include a first bracket 41 and a second bracket 42, which are fixed on the upper end of the turntable and can rotate with the turntable. The first bracket 41 and the second bracket 42 are respectively provided with a first push cylinder 71 and a second push cylinder 72, which are respectively connected to the first baffle 61 and the second baffle 62 through a first connecting block 81 and a second connecting block 82. The clamping plate is fixedly connected to the output end of the clamping cylinder 50 on the first bracket 41. When the lower end of the workpiece is placed into the inlet and outlet of the workpiece slot, the clamping cylinder drives the clamping plate to move slightly, so that the lower end of the workpiece can be squeezed into the inlet and outlet of the workpiece slot.

[0040] The pushing cylinders on both sides can respectively drive the two baffles to move. The two baffles are staggered. When the two baffles are relatively far away, the entrance and exit of the workpiece slot is opened, which is convenient for taking and putting in the workpiece; when the two baffles are relatively closed, the notch and the nail hole are correspondingly located above the entrance and exit of the workpiece slot, and the cloth covering the upper end of the workpiece is overlapped and pressed on the workpiece, which can improve the accuracy of nailing and ensure that the closing cloth is nailed to the workpiece.

[0041] It should be noted here that a reference plate 600 is fixedly provided at the side ends of the two side brackets. When the workpiece 400 is placed in the workpiece slot, one side uses the inner wall of the reference plate as a reference to ensure the accuracy of nailing.

[0042] The first baffle plate 61 is provided with a plurality of nail holes 3, and the edge of the second baffle plate 62 is provided with a plurality of pressure strips 25 along its length direction, and a notch 26 is formed between adjacent pressure strips 25; the bottom surface of the first baffle plate 61 is higher than the upper end of the second baffle plate 62, and when the inlet and outlet 200 of the workpiece slot 2 is blocked, Fig. 9 As shown, the pressure strip 25 is pressed on the covering fabric at the workpiece closing position, and the notch 26 is correspondingly located directly below the nail hole 3. In this solution, Fig.10 As shown, when covering the entrance and exit of the workpiece groove, the second baffle first moves to press the closing side wrapping cloth 502 onto the workpiece through the pressure strip, and then the first baffle moves until the nail hole is above the notch, and then presses the closing side wrapping cloth 501 onto the pressure strip. Because the notch 26 is located directly below the nail hole 3, it can ensure that the closing wrapping cloths on both sides are hammered onto the workpiece 400, thereby improving the accuracy of nailing and the qualified rate.

[0043] like Figures 4 and 5 As shown, a guide rail 9 is provided on the bracket, and a slider 10 is installed at the bottom of the baffle plate to slide with the guide rail 9. In this technical solution, the cooperation between the guide rail and the slider can make the baffle plate move more smoothly, ensuring the cloth pressing effect. A guide sleeve 12 is installed on the bracket, and a guide rod 11 is provided in the sliding sleeve of the guide sleeve 12. The guide rod 11 is fixedly connected to the clamping plate 5, so that the clamping plate moves more smoothly when clamping the workpiece, and the clamping effect on the workpiece is more stable and reliable, ensuring the accuracy of nailing.

[0044] Furthermore, the pressing mechanism includes a fixing frame 13 fixed on the mounting table 100, and a pressing cylinder 14 arranged on the fixing frame 13, and a pressing rod 15 is fixed on the movable end of the pressing cylinder 14, and the pressing rod 15 is located directly above the workpiece slot 2. The pressing cylinder 14 can drive the pressing rod 15 to move downward to press the workpiece pre-loaded into the entrance and exit 200 of the workpiece slot 2 into the workpiece slot 2.

[0045] In this technical solution, the downward pressure cylinder can drive the pressure rod to move downward to completely press the workpiece whose lower part is stuck in the entrance and exit of the workpiece slot into the workpiece slot, and the size of the pressure rod is designed to be able to press to the edge of the workpiece slot when pressing down without hitting the baffles on both sides, ensuring that the workpiece is completely entered into the workpiece slot.

[0046] In addition, multiple stripes are arranged horizontally on the inner wall of the clamping plate and the second baffle relative to the workpiece. When the workpiece is pressed into the workpiece groove, the stripes can smooth the wrapping cloth on the surface of the workpiece, so that excess wrapping cloth is flowed to the upper end of the workpiece and then flattened, achieving a better effect of closing the wrapping cloth.

[0047] Furthermore, sleeves 16 are fixedly provided on the fixing frame 13 on both sides of the pressing cylinder 14, and a slide bar 17 is slidably passed through the sleeve 16, and the lower end of the slide bar 17 is fixedly connected to the pressing rod 15. In this technical solution, a slide bar is provided on the sleeve, and the slide bar is fixed to the pressing rod, thereby playing a role in stabilizing and guiding the pressing rod.

[0048] like Figures 1 to 3 as well as Fig.12 As shown, the nailing mechanism includes a support frame 18 arranged on the mounting table 100, and a mounting beam 19 is fixedly arranged on the support frame 18 above the workpiece fixing assembly. A servo motor, a slide rail, and a connecting bracket 20 that slides with the slide rail are installed on the mounting beam 19. The servo motor drives the connecting bracket 20 to move back and forth along the slide rail. A code nail gun 300 is fixedly installed on the connecting bracket 20, and the muzzle of the code nail gun 300 is located above the nail hole 3. The servo motor drives the code nail gun 300 to move intermittently for nailing. The distance moved by the code nail gun 300 between two movement intervals corresponds to the distance between two adjacent nail holes 3. During the movement interval, the code nail gun 300 drives nails into the nail holes 3. In this technical solution, the servo motor can drive the connecting bracket to move back and forth on the slide rail of the mounting beam, and the code nail gun can move with the connecting bracket on the mounting beam and drive the servo motor to drive nails into the nail holes. After nailing, the code nail gun resets and waits for the next nailing operation. An infrared sensor is also provided on the connecting bracket, which can sense the nailing situation on the nail hole when the nail gun and the connecting bracket are reset, to ensure that the nail is driven into the nail hole.

[0049] like Figure 2 and 11As shown, the lifting mechanism includes two groups of lifting components; the lifting components are located below the operating station, including a fixed bracket 21 fixedly arranged on the mounting table 100, a lifting cylinder 22 arranged on the fixed bracket 21, and a push rod 23 arranged on the movable end of the lifting cylinder 22. The turntable 1 is provided with through holes 24 communicating with the workpiece slot 2 on both sides below the workpiece fixing component, and the through holes 24 are arranged correspondingly to the push rods 23; the lifting cylinder 22 can drive the push rods 23 to push into the workpiece slot 2 along the through holes 24 to push the upper end of the workpiece out of the entrance 200 of the workpiece slot 2. In this technical solution, the bottom surface of the workpiece slot is the upper end surface of the turntable, and a through hole is opened on the bottom surface of the workpiece slot. To ensure the lifting effect, four through holes are arranged at three positions of the turntable in this case, and two are symmetrically arranged on both sides. One group of lifting components is provided with two push rods. The push rods push into the through holes to push out the workpiece in the workpiece slot, and the staff can take it, which is very convenient.

[0050] In this specific embodiment, in view of the problems of low nailing accuracy, poor effect and low nailing efficiency when the wood board is wrapped with cloth in the existing furniture processing, nailing is performed by the automatic nailing machine in the above scheme. The nailing machine has a workpiece slot, which can press the workpiece down and press it tightly in the workpiece slot to improve the accuracy of nailing. The two baffles of the nailing machine are staggered, which can flatten the cloth wrapping from both sides, further improve the accuracy of nailing, ensure that the cloth wrapping is nailed to the workpiece, and the notches on the two baffles correspond to the nail holes, so as not to affect the nailing effect. The nailing machine has three stations, the operation station is used to place and collect the workpiece, the pressing station is used to press and fix the workpiece, and the nailing station is used to nail into the nail hole. By performing different operations through the three stations, the workpiece transportation and nailing efficiency can be greatly improved.

[0051] The specific operation of the nailing machine in this case is as follows: When the nailing machine is running, the clamping cylinder of the workpiece fixing assembly on the operating station relaxes the clamping plate, and the staff aligns the workpiece with the cloth wrapping with the reference plate and squeezes it into the entrance and exit of the workpiece slot. The rotation of the turntable drives the workpiece fixing assembly to rotate to the pressing station, and the pressing cylinder drives the pressing rod to move downward to press the workpiece into the workpiece slot. The second pushing cylinder drives the second baffle to move to cover the entrance and exit of the workpiece slot and flatten one side of the cloth wrapping 502. The first pushing cylinder on the other side drives the first baffle to move until the nail hole is above the notch, and then flattens the cloth wrapping 501 on one side of the closing onto the pressure strip. The cloth wrappings on both sides overlap and are pressed tightly. Since the notch 26 is located directly below the nail hole 3, it does not affect the nailing effect. The turntable rotates and then rotates the workpiece fixing assembly to the nailing station. The servo motor drives the connecting bracket and the nail gun on it to move along the slide rail. The servo motor drives the nail gun to move intermittently into the nail hole to nail. After nailing, the nail gun resets and checks the nailing situation. After nailing, the turntable rotates to rotate the workpiece fixing assembly to the original operating position. The push rod of the lifting cylinder enters the workpiece slot along the through hole to push the workpiece out, and the staff takes out the nailed workpiece. During the entire nailing process, the staff only needs to insert the lower part of the workpiece into the entrance and exit of the workpiece slot, and take out the workpiece after nailing, which saves time and effort, and greatly improves the nailing accuracy and efficiency.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. An automatic nailing machine, characterized in that: It includes a turntable mechanism, a workpiece fixing mechanism, a pressing mechanism, a nailing mechanism and a lifting mechanism, among which: A turntable mechanism, arranged on a mounting platform (100), comprising at least a turntable (1) capable of intermittent circumferential rotation; A workpiece fixing mechanism comprises a workpiece fixing assembly circumferentially arranged at the upper end of a turntable (1); three groups of workpiece fixing assemblies are respectively switched between a pressing station, a nailing station and an operating station under the intermittent rotation of the turntable mechanism; a workpiece slot (2) for accommodating a workpiece is provided on the workpiece fixing assembly; an entrance (200) is formed at the upper end of the workpiece slot (2); the workpiece fixing assembly can open or cover the entrance (200) of the workpiece slot (2); when the entrance (200) of the workpiece slot (2) is covered, a closing cloth on the workpiece is flattened on the workpiece, and a plurality of nail holes (3) are formed at the upper end of the workpiece slot (2) along the nailing direction of the workpiece; A pressing mechanism, correspondingly arranged above the workpiece fixing assembly on the pressing station, for pressing the workpiece into the workpiece groove (2); A nailing mechanism, correspondingly arranged above the workpiece fixing assembly on the nailing station, and used for moving along the arrangement direction of the nail holes (3) to drive nails into each nail hole (3); The lifting mechanism is correspondingly arranged below the workpiece fixing assembly on the operating station and is used to lift the nailed workpiece out of the workpiece groove (2).

2. The automatic nailing machine according to claim 1, characterized in that: The workpiece fixing assembly comprises two pairs of brackets which are arranged opposite to each other and fixed on the turntable (1), a clamping plate (5) is arranged between the two pairs of brackets, the workpiece slot (2) is formed between the clamping plate (5) and one of the pairs of brackets, the clamping plate (5) is driven by a clamping cylinder (50) to clamp the workpiece inserted into the workpiece slot, and the clamping cylinder (50) is installed on the bracket; two baffles are slidably arranged above the two pairs of brackets for overlapping and pressing the cloth covering the upper end of the workpiece, the two baffles are arranged in an upper and lower staggered manner, and a plurality of nail holes (3) are opened on the upper baffle along the length direction of the workpiece slot (2); a pushing cylinder is respectively arranged on the two pairs of brackets, and the moving end of the pushing cylinder is fixedly connected to the bottom of the baffle to drive the baffle to move inward and outward; When the two baffles are relatively close to each other and cover the entrance (200) of the workpiece slot (2) in an interlaced manner, the plurality of nail holes (3) on the upper baffle are located above the entrance (200), and the lower baffle is provided with a plurality of notches (26) at positions corresponding to the plurality of nail holes (3) so as to facilitate the use of nail guns to nail the covering fabric to the upper end of the workpiece; when the two baffles are relatively far away from each other, the entrance (200) of the workpiece slot (2) is open.

3. The automatic nailing machine according to claim 2, characterized in that: The two baffles include a first baffle (61) and a second baffle (62), the first baffle (61) being provided with a plurality of nail holes (3), the edge of the second baffle (62) being provided with a plurality of pressure strips (25) along its length direction, and recesses (26) being formed between adjacent pressure strips (25); the bottom surface of the first baffle (61) being higher than the upper end of the second baffle (62), when the inlet and outlet (200) of the workpiece slot (2) is shielded, the pressure strips (25) are pressed above the covering fabric at the workpiece closing portion, and the recesses (26) are correspondingly located directly below the nail holes (3).

4. The automatic nailing machine according to claim 2, characterized in that: A guide rail (9) is provided on the bracket, and a sliding block (10) slidably matched with the guide rail (9) is installed at the bottom of the baffle.

5. The automatic nailing machine according to claim 2, characterized in that: A guide sleeve (12) is installed on the bracket, a guide rod (11) is provided in a sliding sleeve inside the guide sleeve (12), and the guide rod (11) is fixedly connected to the clamping plate (5).

6. The automatic nailing machine according to claim 2, characterized in that: The pressing mechanism comprises a fixing frame (13) fixed on the mounting platform (100), and a pressing cylinder (14) arranged on the fixing frame (13); a pressing rod (15) is fixedly provided on the movable end of the pressing cylinder (14); the pressing rod (15) is located directly above the workpiece slot (2); the pressing cylinder (14) can drive the pressing rod (15) to move downward to press the workpiece pre-loaded into the inlet and outlet (200) of the workpiece slot (2) into the workpiece slot (2).

7. An automatic nailing machine according to claim 6, characterized in that: The fixing frame (13) is fixedly provided with sleeves (16) on both sides of the pressing cylinder (14), and a sliding rod (17) is slidably passed through the sleeve (16), and the lower end of the sliding rod (17) is fixedly connected to the pressing rod (15).

8. The automatic nailing machine according to claim 2, characterized in that: The nailing mechanism comprises a support frame (18) arranged on a mounting platform (100); a mounting beam (19) is fixedly arranged on the support frame (18) above the workpiece fixing assembly; a servo motor, a slide rail, and a connecting bracket (20) slidably matched with the slide rail are mounted on the mounting beam (19); the servo motor drives the connecting bracket (20) to move back and forth along the slide rail; a code nail gun (300) is fixedly mounted on the connecting bracket (20); and the muzzle of the code nail gun (300) is located above the nail hole (3).

9. The automatic nailing machine according to claim 8, characterized in that: The servo motor drives the nail gun (300) to move intermittently to nail, and the distance moved by the nail gun (300) between two movement intervals corresponds to the distance between two adjacent nail holes (3). During the movement intervals, the nail gun (300) drives nails into the nail holes (3).

10. The automatic nailing machine according to claim 2, characterized in that: The lifting mechanism comprises two groups of lifting components; the lifting components are located below the operating station and include a fixed bracket (21) fixedly arranged on the mounting table (100), a lifting cylinder (22) arranged on the fixed bracket (21), and a push rod (23) arranged on the movable end of the lifting cylinder (22); through holes (24) communicating with the workpiece groove (2) are opened on both sides below the workpiece fixing components on the turntable (1); the through holes (24) and the push rods (23) are arranged correspondingly; the lifting cylinder (22) can drive the push rod (23) to push into the workpiece groove (2) along the through holes (24) to push the upper end of the workpiece out of the entrance (200) of the workpiece groove (2).

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