Sofa fabric cutting device

Abstract

The utility model discloses a sofa fabric tailoring device which comprises a tailoring machine body, a conveying belt is arranged in the middle of the tailoring machine body, a tailoring machine head is arranged on the tailoring machine body, and a discharging mechanism is arranged on the front side of the tailoring machine body. The discharging mechanism comprises a mounting frame, a C-shaped plate is fixed to the inner side of the mounting frame, a notch is formed in one side of the C-shaped plate, a material suction roller is installed in the C-shaped plate, the interior of the material suction roller is of a hollow structure, the two ends of the material suction roller are rotationally installed on the mounting frame, the tail end of a power shaft is connected with an exhaust pipe through a rotary connector, and the exhaust pipe is connected with external exhaust equipment. A row of first air holes penetrating through the inner cavity are formed in the surface of the suction roller; according to the cutting device, in the rotating process of the material suction roller, suction force can be generated on the fabric at the discharging position, the fabric is prevented from being adhered to a conveying belt, accurate discharging and collecting are achieved, and the fabric which is not fully cut open is easily separated; by means of the material pressing mechanism, when the fabric is pulled at the discharging end, the fabric in the middle can be kept flat, and precision cutting of the cutting machine head on the fabric cannot be interfered.

Description

Technical Field

[0001] The utility model belongs to the technical field of fabric cutting equipment, and in particular relates to a sofa fabric cutting device. Background Art

[0002] Fabric cutting is a necessary step in fabric processing. Production workshops use automated cutting in batch processing, which has the advantages of high efficiency and high precision. When cutting, the fabric is generally placed on the conveyor belt of the cutting equipment. The top of the conveyor belt constitutes a conveying platform. The fabric is continuously conveyed by the rotation of the conveyor belt. At the same time, a cutting head is provided on the top of the cutting equipment. After the cutting path is set by the control center, the cutting head automatically cuts the fabric accordingly.

[0003] When the sofa fabric is placed on the conveyor belt for cutting, the fabric is continuously fed from the feeding end. Due to the cutting and separation, the cut fabric continues to fall from the discharging end for collection.

[0004] However, sofa fabrics are generally large in size. Even after cutting, it is difficult to separate the fabrics completely and they will stick together. When unloading, it is easy to pull the fabric in front and the fabric will wrinkle, thus affecting the subsequent cutting accuracy. At the same time, the fabric is easy to stick to the conveyor belt after being subjected to cutting pressure and continue to be transported along the conveyor belt at the unloading port. The fabric cannot be unloaded accurately at the unloading port, affecting the material collection and safe operation of the equipment. Utility Model Content

[0005] The utility model provides a sofa fabric cutting device, which generates suction on the fabric at the material discharge point during the rotation of the suction roller to prevent it from sticking to the conveyor belt, thereby achieving accurate material discharge and collection, and easily separating the fabric that has not been fully cut; through the pressing mechanism, when the fabric is pulled at the discharge end, the flatness of the middle fabric can be maintained, and the precision cutting of the fabric by the cutting machine head will not be interfered, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sofa fabric cutting device, comprising a cutting machine body, a conveyor belt is installed in the middle of the cutting machine body, the upper part of the conveyor belt is flat to form a conveying platform, a cutting machine head is installed on the cutting machine body, and a feeding mechanism is installed on the front side; the feeding mechanism comprises a mounting frame located at the front side of the cutting machine body, a motor is installed on the mounting frame, a driving wheel is fixed on the output shaft of the motor, a C-shaped plate is fixed on the inner side of the mounting frame, and the C-shaped plate faces one side of the discharge end of the cutting machine body. A notch is formed, a rotatable suction roller is installed in the C-shaped plate, the interior of the suction roller is a hollow structure, both ends of the suction roller are rotatably mounted on the mounting frame, a power shaft at one end of the suction roller extends out of the mounting frame, and the interior of the power shaft is a hollow structure connected to the interior of the suction roller, a driven wheel is fixed on the power shaft, the driving wheel and the driven wheel are connected by a synchronous belt, the end of the power shaft is connected to an exhaust pipe through a rotating joint, and the exhaust pipe is connected to an external exhaust device; a row of first air holes that pass through the inner cavity are provided on the surface of the suction roller.

[0007] Preferably, the outer wall of the suction roller is smooth and in close contact with the inner wall of the C-shaped plate.

[0008] Preferably, the front and rear parts of the cutting machine body are both equipped with a pressing mechanism, and the pressing mechanism includes a gantry, a telescopic cylinder is fixed on the gantry, a pressure roller frame is fixed after the telescopic cylinder piston rod passes through the gantry, and the pressure roller frame is equipped with a pressing roller.

[0009] Preferably, guide rods are fixed on both sides of the top of the pressure roller frame, the guide rods penetrate the gantry, and the gantry is slidably connected to the guide rods via linear bearings.

[0010] Preferably, the suction roller is provided with a plurality of rows of second air holes at both ends, the second air holes in different rows are staggered, and all the air holes are projected to cover the entire suction roller in the longitudinal section.

[0011] Preferably, the cutting machine body is supported by supporting legs, and the bottoms of the supporting legs are provided with shock-absorbing pads.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. During the rotation of the suction roller, when the first air hole reveals a gap, it will generate suction on the fabric at the unloading location to prevent it from sticking to the conveyor belt and achieve accurate unloading and collection.

[0014] 2. When the fabric is subjected to suction, it is easy for the fabric that has not been fully cut to separate.

[0015] 3. The pressing mechanism can keep the fabric in the middle flat when it is pulled at the discharge end, and will not interfere with the precision cutting of the fabric by the cutting machine head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main and top view structure of the utility model;

[0017] Figure 2 It is a partial front view structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the side view structure of the C-shaped plate, notch, and suction roller of the utility model;

[0019] Figure 4 This is a schematic diagram of the suction roller and air hole structure of the utility model;

[0020] Figure 5 It is a schematic structural diagram of the material pressing mechanism of the utility model.

[0021] In the figure: 1. cutting machine body; 2. conveyor belt; 3. cutting machine head; 4. mounting frame; 5. motor; 6. driving wheel; 7. C-shaped plate; 8. notch; 9. suction roller; 10. driven wheel; 11. synchronous belt; 12. rotary joint; 13. exhaust pipe; 14. first air vent; 15. gantry; 16. telescopic cylinder; 17. pressure roller frame; 18. pressure roller; 19. guide rod; 20. support leg; 21. shock-absorbing pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5The utility model provides a sofa fabric cutting device, comprising a cutting machine body 1, a conveyor belt 2 is installed in the middle of the cutting machine body 1, the upper part of the conveyor belt 2 is flat to form a conveying platform, a cutting machine head 3 is installed on the cutting machine body 1, and a material discharge mechanism is installed on the front side; the material discharge mechanism comprises a mounting frame 4 located at the front side of the cutting machine body 1, a motor 5 is installed on the mounting frame 4, a driving wheel 6 is fixed on the output shaft of the motor 5, a C-shaped plate 7 is fixed on the inner side of the mounting frame 4, and a notch is formed on the C-shaped plate 7 toward the side of the discharge end of the cutting machine body 1 8. A rotatable suction roller 9 is installed in the C-shaped plate 7. The interior of the suction roller 9 is a hollow structure. Both ends of the suction roller 9 are rotatably mounted on the mounting frame 4. A power shaft at one end of the suction roller 9 extends out of the mounting frame 4, and the interior of the power shaft is a hollow structure connected to the interior of the suction roller 9. A driven wheel 10 is fixed on the power shaft. The driving wheel 6 and the driven wheel 10 are connected by a synchronous belt 11. The end of the power shaft is connected to an exhaust pipe 13 through a rotary joint 12. The exhaust pipe 13 is connected to an external exhaust device; the surface of the suction roller 9 is provided with A row of first air holes 14 runs through the inner cavity; when cutting, the sofa fabric is continuously fed from the feeding end of the cutting machine body 1 through the conveyor belt 2, cut through the cutting machine head 3, and discharged from the discharging end on the front side. When discharging, the exhaust device connected to the exhaust pipe 13 is turned on, and negative pressure is generated inside the suction roller 9 through the power shaft, and further negative pressure is generated at the first air hole 14. During this period, the motor 5 is turned on to drive the driving wheel 6 to rotate, and further drives the driven wheel 10 to rotate through the synchronous belt 11, thereby driving the suction roller 9 to rotate in the C-shaped plate 7, so that during the rotation of the suction roller 9, when the first air hole 14 is turned on, the suction roller 9 is rotated. When the hole 14 exposes the notch 8, suction will be generated on the fabric at the unloading location to prevent it from sticking to the conveyor belt 2. The fabric that has not been fully cut will be easily separated after being subjected to the suction. The fabric will move toward the suction roller 9 after being attracted. When the suction roller 9 continues to rotate, the first air hole 14 will be blocked by the C-shaped plate 7, and then the fabric will fall to the collecting mechanism. Then the suction roller 9 continues to rotate to expose the notch 8 in the first air hole 14, and then the subsequent fabric will be attracted to fall again. The same principle is repeated to achieve accurate unloading of the fabric, and the unloading will not interfere with the accurate cutting of the subsequent fabric.

[0024] Specifically, the outer wall of the suction roller 9 is smooth and in close contact with the inner wall of the C-shaped plate 7. In the present embodiment, there is no gap between the suction roller 9 and the C-shaped plate 7. When the first air hole 14 of the suction roller 9 is blocked, suction will not be generated along the gap to cause the fabric to fall.

[0025] Specifically, the front and rear parts of the cutting machine body 1 are equipped with a pressing mechanism, and the pressing mechanism includes a gantry 15, on which a telescopic cylinder 16 is fixed, and after the piston rod of the telescopic cylinder 16 passes through the gantry 15, a pressure roller frame 17 is fixed, and the pressure roller frame 17 is equipped with a pressure roller 18; in this embodiment, the piston rod is driven to be extended and retracted by the telescopic cylinder 16, so that the pressure roller frame 17 and the pressure roller 18 can be driven to rise and fall, and then the height of the pressure roller 18 can be adjusted so that it can press the fabric tightly and the pressure roller 18 does not interfere with the conveying of the fabric.

[0026] Specifically, guide rods 19 are fixed on both sides of the top of the pressure roller frame 17, and the guide rods 19 pass through the gantry 15. The gantry 15 is slidably connected to the guide rods 19 through linear bearings. In this embodiment, the guide rods 19 can improve the stability of the telescopic cylinder 16 when driving the pressure roller frame 17 and the pressure roller 18 to rise and fall. At the same time, the linear bearings can reduce the friction between the guide rods 19 and the gantry 15, thereby further improving the accuracy.

[0027] Specifically, the suction roller 9 is provided with a plurality of rows of second air holes 20 at both ends, and different rows of the second air holes 20 are staggered, and all the air holes are projected to cover the entire suction roller 9 in the longitudinal section; in this embodiment, during the rotation of the suction roller 9, when the first air holes 14 are completely blocked by the C-shaped plate 7, ventilation can still be carried out through the second air holes 20, and the second air holes 20 are located at both ends of the suction roller 9, and the spacing can be designed to be greater than the width of the fabric, so as not to have a suction effect on the fabric.

[0028] Specifically, the cutting machine body 1 is supported by supporting legs 21, and shock-absorbing feet are installed at the bottom of the supporting legs 21; in this embodiment, the shock-absorbing feet can reduce the vibration of the entire equipment during the cutting and unloading process, further improving the cutting accuracy.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0030] Working principle: During cutting, the sofa fabric is continuously fed from the feeding end of the cutting machine body 1 through the conveyor belt 2, cut by the cutting head 3, and discharged from the front discharge end. During this period, the piston rod is driven to extend and retract by the telescopic cylinder 16, which can drive the pressure roller frame 17 and the pressure roller 18 to rise and fall, and then adjust the height of the pressure roller 18 to make it press the fabric tightly. When the fabric discharge end is pulled, the middle part of the fabric can also be kept flat, which will not interfere with the precision cutting of the fabric by the cutting head 3.

[0031] When discharging, the exhaust device connected to the exhaust pipe 13 is turned on, and negative pressure is generated inside the suction roller 9 through the power shaft, and negative pressure is further generated at the first air hole 14. During this period, the motor 5 is turned on to drive the driving wheel 6 to rotate, and further the driven wheel 10 is driven to rotate through the synchronous belt 11, thereby driving the suction roller 9 to rotate in the C-shaped plate 7. Therefore, during the rotation of the suction roller 9, when the first air hole 14 exposes the notch 8, suction will be generated on the fabric at the unloading location to prevent it from sticking to the conveyor belt 2, and the fabric is easily separated from the fabric that has not been fully cut after being subjected to the suction force. The fabric will move toward the suction roller 9 after being attracted. When the suction roller 9 continues to rotate, the first air hole 14 will be blocked by the C-shaped plate 7, and then the fabric falls to the collecting mechanism. Then the suction roller 9 continues to rotate to expose the notch 8 in the first air hole 14, and then the subsequent fabric is attracted to fall again. The same principle is repeated to achieve accurate unloading of the fabric, and the unloading will not interfere with the accurate cutting of the subsequent fabric.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sofa fabric cutting device, comprising a cutting machine body (1), characterized in that: A conveyor belt (2) is installed in the middle of the cutting machine body (1), and the upper part of the conveyor belt (2) is flat to form a conveying platform. A cutting machine head (3) is installed on the cutting machine body (1), and a material discharge mechanism is installed on the front side; the material discharge mechanism includes a mounting frame (4) located at the front side of the cutting machine body (1), a motor (5) is installed on the mounting frame (4), and a driving wheel (6) is fixed on the output shaft of the motor (5), and a C-shaped plate (7) is fixed on the inner side of the mounting frame (4), and a notch (8) is formed on the side of the C-shaped plate (7) facing the discharge end of the cutting machine body (1), and a rotatable suction roller (9) is installed in the C-shaped plate (7). ), the interior of the suction roller (9) is a hollow structure, both ends of the suction roller (9) are rotatably mounted on the mounting frame (4), a power shaft at one end of the suction roller (9) extends out of the mounting frame (4), and the interior of the power shaft is a hollow structure connected to the interior of the suction roller (9), a driven wheel (10) is fixed on the power shaft, the driving wheel (6) and the driven wheel (10) are connected by a synchronous belt (11), the end of the power shaft is connected to an exhaust pipe (13) through a rotating joint (12), and the exhaust pipe (13) is connected to an external exhaust device; the surface of the suction roller (9) is provided with a row of first air holes (14) that pass through the inner cavity.

2. A sofa fabric cutting device according to claim 1, characterized in that: The outer wall of the suction roller (9) is smooth and is in close contact with the inner wall of the C-shaped plate (7).

3. A sofa fabric cutting device according to claim 1, characterized in that: The front and rear parts of the cutting machine body (1) are both provided with a material pressing mechanism, the material pressing mechanism comprising a gantry (15), a telescopic cylinder (16) being fixed on the gantry (15), a pressure roller frame (17) being fixed after the piston rod of the telescopic cylinder (16) passes through the gantry (15), and the pressure roller frame (17) is provided with a material pressing roller (18).

4. A sofa fabric cutting device according to claim 3, characterized in that: Guide rods (19) are fixed on both sides of the top of the pressure roller frame (17), and the guide rods (19) penetrate the gantry frame (15). The gantry frame (15) is slidably connected to the guide rods (19) via linear bearings.

5. The sofa fabric cutting device according to claim 1, characterized in that: The suction roller (9) is provided with a plurality of rows of second air holes (20) at both ends, and the second air holes (20) in different rows are staggered and distributed, and all the air holes are projected to cover the entire suction roller (9) in the longitudinal section.

6. The sofa fabric cutting device according to claim 1, characterized in that: The cutting machine body (1) is supported by supporting legs (21), and the bottoms of the supporting legs (21) are each provided with shock-absorbing pads.

Images