阅读说明：本技术 一种高效的座垫扪皮设备 (Efficient seat cushion skin covering equipment ) 是由 董敏群 于 2020-05-08 设计创作，主要内容包括：本发明涉及家具制造设备技术领域,尤其涉及一种高效的座垫扪皮设备。其包括用于安置座垫的安置板,用于将皮料展开绷紧的皮料固定组件,用于对座垫的形状取形、且以取形后的框架将皮料压向座垫的取形组件以及钉枪；取形组件包括由四条固定框组成的框架,固定框内均插设有若干薄片；薄片底面铰接有翻边片,翻边片的宽度由与薄片连接的一端到自由端逐渐减小,翻边片压制于座垫背面时,相邻翻边片之间形成枪钉部；翻边片沿其长度方向设有条形磁铁,安置板内设有电磁铁。本申请可用于对各种形状、大小的座垫进行扪皮,适用范围广；同时通过翻边片的设置,可以将皮料均匀、齐整地折叠到座垫背面,并形成均匀的枪钉部,以提高固定均匀度。(The invention relates to the technical field of furniture manufacturing equipment, in particular to efficient seat cushion skin covering equipment. The device comprises a placing plate for placing a seat cushion, a leather fixing component for spreading and tightening leather, a shaping component for shaping the shape of the seat cushion and pressing the leather to the seat cushion by a shaped frame and a nail gun; the shape taking assembly comprises a frame consisting of four fixing frames, and a plurality of thin sheets are inserted into the fixing frames; the bottom surface of each thin sheet is hinged with a flanging piece, the width of each flanging piece is gradually reduced from one end connected with the thin sheet to the free end, and when the flanging pieces are pressed on the back surface of the seat cushion, a gun nail part is formed between every two adjacent flanging pieces; the flanging sheet is provided with a bar magnet along the length direction, and an electromagnet is arranged in the placing plate. The seat cushion covering device can be used for covering the seat cushions in various shapes and sizes, and is wide in application range; meanwhile, the leather can be uniformly and neatly folded to the back of the seat cushion through the arrangement of the flanging sheets, and an even gun nail part is formed, so that the fixing uniformity is improved.)

1. An efficient seat cushion skin covering device is characterized in that: the seat cushion fixing device comprises a placing plate (21) for placing a seat cushion (1), a leather fixing component for spreading and tightening leather on the leather side of the seat cushion (1), a shaping component for shaping the shape of the seat cushion (1) and pressing the leather to the seat cushion (1) by a shaped frame so that the leather covers the leather side, the side surface and the back edge part of the seat cushion, and a nail gun (4) for fixing the leather at the back edge part of the seat cushion (1) to the seat cushion (1); the device is characterized by also comprising a workbench (2) provided with supporting legs, wherein the workbench (2) is provided with a central opening, the placing plate (21) is arranged at the central opening, and the bottom of the placing plate (21) is connected with a lifter (22); the shape taking assembly comprises a frame (32) which is arranged above the workbench (2) in a suspended mode through a second lifter (31), the frame (32) is a rectangle formed by four fixing frames (321), a plurality of thin sheets (322) are inserted into the fixing frames (321), one ends, located in the frame (32), of the thin sheets (322) form shape taking ends which can be in end face contact with the seat cushion (1), one ends, located outside the frame (32), of the shape taking ends form pushing ends, and the shape taking ends and the pushing ends are provided with stopping blocks for the thin sheets (322) to slide out of the fixing frames (321); the device also comprises a locking piece for movably locking the sheet (322) to prevent the sheet (322) after taking the shape from moving; the bottom surface of the shape taking end is hinged with a flanging sheet (323), the width of the flanging sheet (323) is gradually reduced from one end connected with the thin sheet (322) to the free end, and when the flanging sheet (323) is pressed on the back surface of the seat cushion, a gun nail part (43) is formed between the adjacent flanging sheets (323); the flanging sheet (323) is provided with a bar magnet along the direction from one end connected with the thin sheet (322) to the free end, and an electromagnet is arranged in the placing plate (21).

2. The efficient seat cushion skin closing apparatus according to claim 1, wherein: the shape taking assembly further comprises a pushing piece (33) arranged on the workbench (2), the pushing piece (33) comprises four fixing strips (331) which are parallel to the four fixing frames (321) respectively, one surface, close to the fixing frames (321), of each fixing strip (331) is provided with a groove, the fixing strips (331) are provided with pushing pieces (332) which are consistent with the fixing frame (321) in number, one end of each pushing piece (332) is inserted into the groove and connected with the bottom of the groove through a spring (333), and the other end of each pushing piece is used for pushing a pushing end of each thin piece (322); one surface of the fixed strip (331) far away from the fixed frame (321) is connected with a piston rod of the cylinder (334).

3. The efficient seat cushion skin closing apparatus according to claim 1, wherein: the retaining member including set up in the screw hole of fixed frame (321) top surface and with screw hole threaded connection's screw rod (3211), be equipped with elasticity piece (324) in fixed frame (321), elasticity piece (324) butt in all slice (322) top, screw rod (3211) pass the screw hole butt in elasticity piece (324).

4. A high-efficiency seat cushion skin closing apparatus according to claim 3, wherein: the elastic sheet (324) is provided with lugs at two ends respectively, and the inner wall of the fixing frame (321) is provided with a hoop sliding groove for inserting the lugs.

5. The efficient seat cushion skin closing apparatus according to claim 1, wherein: two ends of the workbench (2) are respectively provided with a supporting seat (23) vertical to the workbench (2), a shaft body (231) is arranged between the two supporting seats (23), one end of the shaft body (231) is arranged on one supporting seat (23) through a rotating bearing, and the other end of the shaft body penetrates through the other supporting seat (23) to be connected with a stepping motor; the second lifter (31) is provided to the shaft body (231).

6. The efficient seat cushion skin closing apparatus according to claim 5, wherein: the top surface of supporting seat (23) all is equipped with the spout, all be equipped with slide (41) in the spout, be equipped with a ball (42) between two slide (41), nail rifle (4) set up in the nut seat of ball (42).

7. The efficient seat cushion skin closing apparatus according to claim 6, wherein: and second ball screws are arranged in the sliding grooves, and nut seats of the second ball screws form the sliding seat (41).

8. The efficient seat cushion skin closing apparatus according to claim 7, wherein: a servo motor for controlling the ball screw (42) and the second ball screw is electrically connected to a numerical control device loaded with a machining program.

9. The efficient seat cushion skin closing apparatus according to claim 5, wherein: the leather material fixing component is arranged on the part, located between the shaft body (231) and the workbench (2), of the supporting seat (23), and comprises a leather material reel (51) arranged on one supporting seat (23) and a clamping piece (52) arranged on the other supporting seat (23).

10. The efficient seat cushion skin closing apparatus according to claim 9, wherein: a cutting knife (53) is arranged at the bottom of the fixing frame (321) close to the leather reel (51).

Technical Field

The invention relates to the technical field of furniture manufacturing equipment, in particular to efficient seat cushion skin covering equipment.

Background

In the current furniture industry, leather, cloth and the like are wrapped and inlaid on various soft furniture cushions, and the traditional manual skin covering mode is usually adopted. However, the traditional manual skin covering method requires a worker to position and press leather, cloth and the like by the strength of the worker, and when workers fix the turned edges of leather, cloth and the like, one hand is used for pressing the turned edges of the leather, the cloth and the like, then the nail is nailed and fixed by the other hand, which not only consumes physical strength, but also increases the processing difficulty, thereby causing large labor intensity and slow processing speed, even if workers with good processing technology and high proficiency can process about 12 pieces of workpiece per hour, due to the influence of manual and force of the workers, in the processing process, the phenomenon of deviation of leather, cloth art and the like is easy to occur, so that the turnups of the leather, the cloth art and the like are difficult to keep on the same horizontal line after being fixed, in addition, the soft cushion has the defects of wavy lines, insufficient softness, poor appearance and the like, and is difficult to meet the requirement of consumers on appearance beauty.

Patent document No. CN201923841U discloses a high-efficiency skin closing machine, which is characterized by comprising a support, a workbench horizontally arranged on the support, and a pressing device arranged on the support and located above the workbench. When the device is used, a mould is firstly positioned on the workbench 2, then a soft cushion, leather, cloth and the like are placed in the mould, then the switch 34 is started, the pressure head 31 is driven by the driving shaft 321 of the air cylinder 32 to move downwards until the soft cushion and the mould are pressed, and at the moment, a worker can perform covering of the soft cushion. And it compresses tightly the back with cladding and seatpad, still needs the manual work to fix the cladding on the back of seatpad, and the manual work fixed mode has the inhomogeneous problem of walking the line, and the line of walking on the back is inhomogeneous very easily leads to the cladding of front to produce the fold.

Disclosure of Invention

The present invention is made to solve the above problems and provides a highly efficient seat cushion skin covering apparatus.

The invention provides efficient seat cushion skin covering equipment, which comprises a mounting plate for mounting a seat cushion, a leather fixing component for spreading and tightening leather on the skin covering surface side of the seat cushion, a shape taking component for taking the shape of the seat cushion and pressing the leather to the seat cushion by a shaped frame so that the leather covers the skin covering surface, the side surface and the back edge part of the seat cushion, and a nail gun for fixing the leather at the back edge part of the seat cushion to the seat cushion; the automatic lifting device is characterized by also comprising a workbench provided with supporting legs, wherein the workbench is provided with a central opening, the placing plate is arranged at the central opening, and the bottom of the placing plate is connected with the lifter; the shape taking assembly comprises a frame which is arranged above the workbench in a suspended mode through a second lifter, the frame is a rectangle formed by four fixing frames, a plurality of thin sheets are inserted into the fixing frames, one end, located in the frame, of each thin sheet forms a shape taking end capable of being in contact with the end face of the seat cushion, one end, located outside the frame, of each thin sheet forms a pushing end, and the shape taking end and the pushing ends are provided with stopping thin sheets to slide out of stopping blocks of the fixing frames; the locking piece is used for movably locking the sheet to prevent the sheet after the shape taking from moving; the bottom surface of the shape taking end is hinged with flanging sheets, the width of the flanging sheets is gradually reduced from one end connected with the thin sheet to the free end, and when the flanging sheets are pressed on the back surface of the seat cushion, a gun nail part is formed between every two adjacent flanging sheets; the flanging sheet is provided with a bar magnet along the direction from one end of the flanging sheet connected with the thin sheet to the free end, and an electromagnet is arranged in the mounting plate.

The shape of the seat cushion with different shapes and sizes can be taken through the shape taking component, so that the seat cushion with the shape taking component is suitable for covering skins of various seat cushions. Meanwhile, the edge of the leather material can be uniformly and neatly folded to the back of the seat cushion by the flanging sheet, and a uniform gun nail part is formed, so that the uniformity of the leather covering fixing wire can be improved by the uniform gun nail part no matter the gun nail part is fixed manually or mechanically, the fixing strength of the leather covering can be improved, and wrinkles on the leather covering surface of the seat cushion can be avoided.

The sheet can be pushed manually or mechanically, as the optimization of the invention, the shape taking assembly also comprises pushing pieces arranged on the workbench, the pushing pieces comprise four fixing strips which are respectively parallel to the four fixing frames, one surface of each fixing strip, which is close to the fixing frame, is provided with a groove, the fixing strips are provided with pushing pieces with the same number as the fixing frame sheets, one end of each pushing piece is inserted into the groove and is connected with the bottom of the groove through a spring, and the other end of each pushing piece is used for pushing the pushing end of the sheet; one side of the fixed strip, which is far away from the fixed frame, is connected with a piston rod of the air cylinder.

Preferably, the locking member includes a threaded hole formed in the top surface of the fixing frame and a screw rod in threaded connection with the threaded hole, an elastic piece is arranged in the fixing frame and abuts against the tops of all the sheets, and the screw rod penetrates through the threaded hole and abuts against the elastic piece.

In order to prevent the elastic piece from sliding out of the fixing frame, as a preferred choice of the invention, two ends of the elastic piece are respectively provided with a convex block, and the inner wall of the fixing frame is provided with a hoop sliding groove into which the convex block can be inserted.

Nails can be nailed at the nail part of the gun in a manual or mechanical mode, as the preferred choice of the invention, both ends of the workbench are respectively provided with a supporting seat vertical to the workbench, a shaft body is arranged between the two supporting seats, one end of the shaft body is arranged on one supporting seat through a rotating bearing, and the other end passes through the other supporting seat and is connected with a stepping motor; the second lifter is arranged on the shaft body.

Preferably, the top surface of the support seat is provided with sliding grooves, sliding seats are arranged in the sliding grooves, a ball screw is arranged between the two sliding seats, and the nail gun is arranged on a nut seat of the ball screw.

The ball screw is the most frequently used transmission element on tool machinery and precision machinery, and consists of a screw, a nut, a steel ball, a preforming piece, a reverser and a dust remover, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Under the action of the ball screw, the nail gun can move linearly along the ball screw.

The slide can slide in the spout with arbitrary drive mode to drive ball to drive nail rifle and then move along spout direction, thereby realized the omnidirectional of nail rifle and removed, in order to fix arbitrary nail rifle portion. Preferably, a second ball screw is provided in each of the slide grooves, and a nut seat of the second ball screw forms the slide base.

In the present invention, it is preferable that a servo motor for controlling the ball screw and the second ball screw is electrically connected to a numerical control device on which a machining program is loaded.

The processing program and the numerical control device are common structures in modern numerical control machines, after relevant data of the seat cushion are input to the numerical control device, the processing program can process the motion trail of the nail gun to obtain, and then the output device of the numerical control device controls the servo motor to move as required.

Preferably, the leather fixing component is arranged at a part of the supporting seat between the shaft body and the workbench, and comprises a leather reel arranged on one supporting seat and a clamping piece arranged on the other supporting seat.

Preferably, a cutting knife is arranged at the bottom of the fixing frame close to the leather material reel.

The invention has the beneficial effects that:

1. according to the seat cushion shaping device, the shaping assembly is arranged, so that the seat cushion shaping device can be used for covering seats in various shapes and sizes, and is wide in application range.

2. This application not only can fold the seatpad back with the cladding evenly, neatly through the setting of turn-ups piece, can form even rifle nail portion moreover to fixed degree of consistency is improved, is avoided holding the skin face and produces the fold.

Drawings

Fig. 1 is a schematic structural view of an efficient seat cushion skin closing apparatus;

fig. 2 is a schematic view of the structure of a frame and a pushing member in an efficient seat cushion skin closing apparatus and a schematic view of a shape taking process;

fig. 3 is a schematic diagram of a frame-to-seat cushion skin closing after a shape is taken in an efficient seat cushion skin closing apparatus;

fig. 4 is a schematic view of the back surface of a seat cushion when a skin covering apparatus for a seat cushion is effective;

fig. 5 is a schematic structural view of a pushing member of an efficient seat cushion skin closing apparatus;

fig. 6 is a schematic structural view of a fixing frame, a sheet, and an elastic sheet of an efficient seat cushion skin closing apparatus;

in the figure: the device comprises a seat cushion 1, a workbench 2, a setting plate 21, a lifter 22, a supporting seat 23, a shaft body 231, a second lifter 31, a frame 32, a fixing frame 321, a screw 3211, a sheet 322, a flanging sheet 323, an elastic sheet 324, a pushing piece 33, a fixing strip 331, a pushing piece 332, a spring 333, a cylinder 334, a nail gun 4, a sliding seat 41, a ball screw 42, a nail part 43, a leather material reel 51, a clamping piece 52 and a cutting knife 53.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

An efficient seat cushion skin-covering device comprises a mounting plate 21 for mounting a seat cushion 1, a leather fixing component for spreading leather tightly on the skin-covering surface side of the seat cushion 1, a shaping component for shaping the shape of the seat cushion 1 and pressing the leather to the seat cushion 1 by a shaped frame so that the leather covers the skin-covering surface, the side surface and the back edge part of the seat cushion 1, and a nail gun 4 for fixing the leather at the back edge part of the seat cushion 1 to the seat cushion 1, as shown in figure 1.

This equipment sets up on workstation 2 that has the supporting legs, and center opening has been seted up to workstation 2, and place board 21 sets up in center opening, and place the bottom of board 21 and be connected with lift 22, and under lift 22's effect, place board 21 can drive seatpad protrusion in 2 mesas, and the external diameter of placing board 21 sets up less to be convenient for fold the back of seatpad 1 with the cladding.

Wherein the take-up assembly comprises a frame 32 suspended above the table 2 by a second elevator 31. In this embodiment, the two ends of the working platform 2 may be respectively provided with the supporting seats 23 perpendicular to the working platform 2, a shaft body 231 is arranged between the two supporting seats 23, and the second elevator 31 is arranged on the shaft body 231 to realize suspension.

As shown in fig. 2, the frame 32 is a rectangle composed of four fixing frames 321, a plurality of thin sheets 322 are inserted into the fixing frames 321, one end of each thin sheet 322 located in the frame 32 forms a shaping end capable of contacting with the end surface of the seat cushion 1, and one end located outside the frame 32 forms a pushing end. Meanwhile, the shape-taking end and the pushing end of the sheet 322 are both provided with a stopper for preventing the sheet 322 from sliding out of the fixing frame 321.

In this embodiment, as shown in fig. 2 and 5, the shape-taking assembly further includes a pushing member 33 disposed on the workbench 2, the pushing member 33 includes four fixing strips 331 respectively parallel to the four fixing frames 321, a groove is disposed on one side of the fixing strips 331 near the fixing frames 321, the fixing strips 331 are provided with pushing pieces 332 in a number consistent with the number of the sheets 322 of the fixing frames 321, one end of each pushing piece 332 is inserted into the groove and connected with the bottom of the groove through a spring 333, and the other end of each pushing piece 332 is used for pushing the pushing end of the sheet 322; the side of the fixing bar 331 remote from the fixing frame 321 is connected to the piston rod of the cylinder 334.

After the frame 32 is lowered by the second lifter 31 to the table 2 parallel to the plane of the seat cushion 1 and the pushing member 33, the seat cushion 1 is positioned within the frame of the frame 32 as shown in the top drawing of fig. 2. Then, as shown in the middle picture of fig. 2, the left and right cylinders 334 are first actuated to extend the piston rods thereof, and the fixed bar 331 brings the pushing piece 332 close to the thin piece 322 and contacts the pushing end to push the thin piece 322 toward the seat cushion 1. The changes that occur at this time are: the sheet 322 whose shaping end contacts the seat cushion 1 cannot move further, but the fixing bar 331 moves further, so that the spring 333 of the pushing piece 332 corresponding thereto is compressed; while the continued movement of the fixing bar 331 allows the sheet 322 which has not yet contacted the seat cushion 1 to continue to move until contacting the seat cushion 1; the fixing bar 331 cannot move any further until the spring 333 is compressed to the maximum, and the left and right shapes of the seat cushion 1 are also taken out. Then, the upper and lower cylinders 334 are actuated to shape the upper and lower portions of the seat cushion 1 in the same manner. Finally, the cylinder is retracted, i.e. as shown in the bottom image of fig. 2, resulting in an inner ring shaped frame 32 in the shape of the outer periphery of the seat cushion 1.

In order to fix the shape after the shape taking, a locking member for moving the locking sheet 322 to prevent the movement of the sheet 322 after the shape taking is further included, in this embodiment, as shown in fig. 6, the locking member includes a threaded hole disposed on the top surface of the fixing frame 321 and a screw 3211 in threaded connection with the threaded hole, an elastic sheet 324 is disposed in the fixing frame 321, the elastic sheet 324 abuts against the tops of all the sheets 322, and the screw 3211 penetrates through the threaded hole to abut against the elastic sheet 324. The two ends of the elastic piece 324 are respectively provided with a projection, and the inner wall of the fixing frame 321 is provided with a hoop sliding groove for the projection to insert. The tab 322 is locked against movement by rotating the screw 3211 so that the screw 3211 moves downward, pressing the tab 324 only against the tab 322.

After the frame 32 is shaped, the frame 32 needs to be controlled to move upwards by the second lifter 31. After the frame 32 is moved up, the leather is spread and tightened between the frame 32 and the seat cushion 1 by the leather fixing component. In this embodiment, the cladding fixing component is disposed on the supporting seat 23 between the shaft 231 and the workbench 2, and the cladding fixing component includes a cladding reel 51 disposed on one supporting seat 23 and a clamping member 52 disposed on the other supporting seat 23, and one end of the cladding is pulled to the clamping member 52 and clamped by the clamping member 52.

At this time, as shown in fig. 3 again, the seat cushion 1 is moved upwards by the elevator 22 controlling the setting plate 21 until the skin surface of the seat cushion 1 contacts the skin material, and then the frame 32 is controlled to move downwards by the second elevator 31, so that the skin material covers the skin surface during the moving downwards of the frame 32, and the skin material is folded and clamped on the side surface of the seat cushion 1. Meanwhile, a cutting knife 53 is arranged at the bottom of the fixing frame 321 close to the leather reel 51, so that the leather can be cut when the frame 32 moves downwards. Of course, since the fixing frame 321 needs to be lowered onto the table 2 in the preceding step, the groove of the cutting blade 53 may be formed in the table 2 in order to avoid the influence of the cutting blade.

At this time, the covering of the seat cushion 1 with the leather surface and the side surface has been completed, but it is also necessary to fold the leather over the back surface of the seat cushion 1 and fix the leather to the back surface of the seat cushion 1. Therefore, as shown in fig. 6, the bottom surface of the shape-taking end of the present application is hinged with a flanging piece 323, as shown in fig. 4, the width of the flanging piece 323 gradually decreases from the end connected with the thin sheet 322 to the free end, when the flanging piece 323 rotates to press on the back surface of the seat cushion 1, a nail portion 43 is formed between the adjacent flanging pieces 323, so that nails can be manually or mechanically nailed to the nail portion 43.

In order to control the rotation of the flanging piece 323, a bar magnet is arranged on the flanging piece 323 along the direction from the end connected with the thin sheet 322 to the free end, and an electromagnet is arranged in the mounting plate 21. The installation plate 21 is a circular plate, and an iron core in the electromagnet is arranged along the radial direction of the circular plate. The two ends of the bar magnet are different magnetic poles, and the electromagnet is charged with currents in different directions, so that the magnetic poles of the electromagnet can be changed.

When the frame 32 needs to be lowered to the table 2 in the preceding step, the electromagnet is energized, for example, so that the magnetic pole of the electromagnet near the periphery of the setting plate 21 is N-pole, the magnetic pole of the bar magnet near the free end of the flanging piece 323 is N-pole, and the magnetic pole of the bar magnet near the connecting end is S-pole, and then the flanging piece 323 is folded onto the sheet 322 under the action of the electromagnet. When the leather needs to be folded to the back of the seat cushion 1, opposite currents are conducted to the electromagnet, so that the magnetic pole of the electromagnet close to the periphery of the placing plate 21 is an S pole, and under the action of the electromagnet, the free end of the N pole of the flanging sheet 323 is close to the placing plate 21 and is folded to the back of the seat cushion 1.

In addition, in the present embodiment, the nail part 43 is fixed by a numerical control machine. Firstly, one end of the shaft body 231 is arranged on one support seat 23 through a rotating bearing, and the other end passes through the other support seat 23 to be connected with a stepping motor, so that the frame 32 can hold the seat cushion 1 to turn over by 180 degrees and turn over to the upper part of the shaft body 231, and the back of the seat cushion 1 faces upwards to be convenient for fixing.

Then, the top surface of the supporting base 23 is provided with sliding grooves, sliding bases 41 are arranged in the sliding grooves, a ball screw 42 is arranged between the two sliding bases 41, and the nail gun 4 is arranged on a nut seat of the ball screw 42. A second ball screw is arranged in each sliding groove, and a nut seat of the second ball screw forms a sliding seat 41. The servo motor that controls the ball screw 42 and the second ball screw is electrically connected to a numerical control device on which a machining program is loaded. The ball screw is a mechanical structure for converting rotary motion into linear motion, and is a common structure in modern industry, and specific structures of the ball screw are not repeated herein.

The rotation of the ball screw 42 or the second ball screw can be controlled by the numerical control device, and when the ball screw 42 rotates, the nail gun 4 can drive a nail into the nail part 43 in the left-right direction in fig. 1 and fix the nail; when the second ball screw rotates, the nail gun 4 can drive the nail part 43 in the front-back direction in fig. 1 to fix the nail, thereby realizing the omnibearing fixation of the back of the seat cushion 1 and the leather.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.