Production line and process for automobile seat slings

Abstract

The present invention relates to a production line for automobile seat slings and a process thereof. The production process for automobile seat slings comprises the following steps: extrusion lamination, cooling, traction, clamping, punching, cutting, and conveying. The production line for automobile seat slings comprises a non-woven fabric feeding system (1), an extruder (2), a compounding die (3), a cooling device (4), a traction machine (5), a punching device (6), and a conveying device (7). The production line for automobile seat slings and a process thereof of the present invention have uniform cooling of the slings, convenient adjustment of the punching position, good specification compatibility, continuous and efficient production, and low production cost.

Description

Technical Field

[0001] The invention relates to a production line for automobile seat slings, and belongs to the field of processing technology equipment for automobile seat slings. Background Art

[0002] The sling is one of the main components commonly used in modern car seats. The cooling process in the existing sling production process includes water cooling and air cooling. Water cooling is to open a hole at the bottom of the water pipe, and water falls from the hole to cool the sling. Since the water is easily deviated from its position during the falling process, the sling is cooled unevenly; the high-speed airflow of air cooling is easy to cause the sling itself to shake, resulting in uneven cooling of the sling; the existing production process cannot adjust the punching position of the punching die when producing slings of different specifications, and cannot meet the production of longer specifications of slings. In addition, the existing production line has a discontinuous production process, resulting in low production efficiency. Therefore, there is an urgent need for a new high-efficiency, low-cost sling production line and process to meet the existing production needs. Summary of the Invention

[0003] The object of the present invention is to overcome the above-mentioned shortcomings and provide a production line and process for automobile seat slings with uniform cooling, convenient adjustment of punching position, good specification compatibility, continuous and efficient production and low cost.

[0004] The object of the present invention is achieved like this:

[0005] A production line for automobile seat slings and a process thereof. The production process for automobile seat slings is implemented based on a production line for automobile seat slings. The production line comprises a non-woven fabric feeding system, an extruder, a composite die, a cooling device, a tractor, a punching device, and a conveying device. The non-woven fabric feeding system and the extruder are arranged in front of the composite die, and the discharge port of the extruder is connected to one end of the composite die. The composite die, cooling device, tractor, punching device, and conveying device are arranged in sequence.

[0006] The non-woven fabric feeding system includes a material rack, a guide wheel, a tensioning device and a guide groove; the guide groove corresponds to the non-woven fabric inlet position of the composite mold;

[0007] The cooling device comprises a cooling and shaping device, a water cooling device and an air cooling device; water inlet pipes and water outlet pipes are provided on both sides of the cooling and shaping device; the cooling and shaping device, the water cooling device and the air cooling device are arranged in sequence; the water cooling device comprises a water cooling bracket, a water pipe and a water nozzle; the water pipe is arranged in parallel just above the water cooling bracket; the water nozzle is installed at the bottom of the water pipe; the water cooling bracket comprises two symmetrically arranged water cooling folding plates, the top edges of the two water cooling folding plates are close to each other to form a water cooling slit; the air cooling device comprises an air cooling Bracket, air pipe and air nozzle; the air pipe is arranged parallel to and directly above the air-cooling bracket; the air nozzle is installed at the bottom of the air pipe; the air-cooling bracket comprises two symmetrically arranged air-cooling folding plates, which are close to each other to form an air-cooling slit; the sling is in sliding contact with the top edges of the two water-cooling folding plates, and the sling is in sliding contact with the side surfaces of the two air-cooling folding plates; the widths of the water-cooling slit and the air-cooling slit are both smaller than the width of the plastic at the top of the sling; the operating axes of the cooling and shaping device, the water-cooling bracket and the sling of the air-cooling bracket coincide;

[0008] The punching device comprises a punching platform, a pinch roller, a punching mechanism and a cutting mechanism; the punching platform comprises a punching base and a punching beam, and the punching beam is installed directly above the punching base; the pinch roller, the punching mechanism and the cutting mechanism are sequentially arranged on the punching platform; the punching device comprises multiple sets of punching mechanisms; the punching mechanism comprises a punching die, a pressure block, a limit rod and a punching cylinder; the punching die is slidably installed on the punching base through a base pressure plate and a base bolt; the pressure block is arranged between the punching die and the punching beam; the lower end of the limit rod is installed On the pressing block, the upper end of the limit rod is slidably arranged in the limit through hole on the punching beam; the fixed end of the stamping cylinder is installed on the punching beam, and the movable end of the stamping cylinder passes through the punching beam and is connected to the pressing block; the stamping die set includes a stamping lower die, a stamping upper die, a stamping knife, a stamping spring and a stamping limit bolt; a stamping material trough is provided in the stamping lower die; the stamping lower die and the stamping upper die are connected by a stamping spring and a stamping limit bolt; the stamping lower die and the stamping upper die are provided with stamping knife guide groove through holes at corresponding positions, and the upper part of the stamping knife is fixedly mounted on the stamping upper die The lower part of the punching knife is slidably embedded in the punching knife guide groove through hole of the punching lower die; the cross-sectional shape of the punching knife and the punching knife guide groove through hole is consistent with the shape of the hole position on the sling, which can be waist-shaped, circular or triangular; the punching material trough and the punching knife guide groove through hole are perpendicular to each other; the cutting mechanism includes a cutting module and a cutting cylinder; the cutting module is installed on the punching base; the fixed end of the cutting cylinder is installed on the punching beam, and the movable end of the cutting cylinder passes through the punching beam and is connected to the cutting module; the cutting module includes a cutting A lower die, an upper cutting die, a cutting knife, a cutting spring and a cutting limit bolt; a cutting material trough is provided in the lower cutting die; the lower cutting die and the upper cutting die are connected by a cutting spring and a cutting limit bolt; the lower cutting die is provided with a cutting knife guide groove through hole; the upper part of the cutting knife is fixedly mounted on the upper cutting die, and the lower part of the cutting knife is slidably embedded in the cutting knife guide groove through hole; the cutting material trough is perpendicular to the cutting knife guide groove through hole; the axes of the stamping material trough and the cutting material trough coincide with the operating axis of the tensioning belt; a material receiving trough is provided directly below the stamping lower die and the cutting lower die;

[0009] The conveying device includes a conveying mechanism and a signal sensor; the signal sensor is arranged directly above the conveying mechanism; the conveying mechanism includes a conveyor belt, a driving wheel, a driven wheel and a tensioning wheel; the conveyor belt is connected to the driving wheel, the driven wheel and the tensioning wheel respectively; the driving wheel and the driven wheel are arranged on the same horizontal line, the driven wheel is in the front track and the driving wheel is in the rear track; the distance between the signal sensor and the cutting mechanism is consistent with the specification length of the tensioning belt; the horizontal running axis of the conveyor belt coincides with the running axis of the tensioning belt of the punching device.

[0010] The process steps of the production process for the automobile seat sling are as follows:

[0011] Step 1: Extrusion lamination: The non-woven fabric roll mounted on the material rack is tensioned and guided by a tensioning device and multiple guide wheels, then passes through a guide groove and enters the composite mold. The modified PP plastic particles are heated and extruded into the composite mold. Inside the composite mold, the molten PP and the non-woven fabric are combined to form a sling.

[0012] Step 2, cooling: The hot sling coming out of the composite mold first enters the cooling and shaping device for cooling and shaping; after cooling and shaping, the sling continues to enter the water cooling device for further cooling. The non-woven fabric part of the sling enters the water cooling slit, and the plastic part is above the water cooling slit. Cooling water evenly falls on the plastic part from the water nozzle for cooling. Excess cooling water quickly flows away through the inclined surfaces of the air-cooling folding plates on both sides and the hollow structure inside the air-cooling bracket to avoid water accumulation on the sling; the water-cooled sling enters the air cooling device for further cooling. The non-woven fabric part of the sling enters the air cooling slit, and the plastic part is above the air cooling slit. Compressed air is evenly sprayed onto the plastic part from the air nozzle. While cooling, the water-cooled sling is blown dry. The air cooling slit is in surface contact with the non-woven fabric of the sling, which can prevent the sling from shaking during blowing.

[0013] Step 3: Traction: The tension belt cooled by the cooling device enters the traction machine, which transforms the cross section of the tension belt from a vertical state to a horizontal state;

[0014] Step 4: Pinch and feed: The horizontal lifting belt of the traction machine enters the pinch roller, and the feeding roller stably feeds the lifting belt into the stamping material slot of the stamping mechanism;

[0015] Step 5, punching: After the tension belt enters the punching material trough, the punching mechanism receives the punching signal, and the punching cylinder pushes the pressing block downward. The pressing block pushes the upper die of the punching die set to move downward. At the same time, the punching knife installed on the upper die punches the tension belt downward along the punching knife guide groove through hole of the punching lower die. Then, the various devices of the punching mechanism are reset, and the debris under the punching is collected through the receiving trough;

[0016] Step 6: Cutting: The punched lifting belt enters the cutting material trough of the cutting mechanism. When the cutting mechanism receives the cutting signal, the cutting cylinder pushes the cutting upper die of the cutting module downward. The cutting knife installed in the cutting upper die cuts the lifting belt downward along the cutting knife guide groove through hole. Then, the various devices of the cutting mechanism are reset, and the cut chips are collected through the receiving trough.

[0017] Step 7, conveying: When the head of the tension belt reaches the signal sensor, the signal sensor sends a signal to the pinch roller, the pinch roller clamps the tension belt and stops moving forward, and at the same time sends a start signal to the stamping mechanism and the cutting mechanism to perform the stamping and cutting operations. After the stamping and cutting are completed, the pinch roller continues to convey the tension belt forward; because the running speed of the conveyor belt is much greater than the travel speed of the tension belt, the finished product tension belt after cutting is quickly sent to the finished product collection device by the conveyor belt, and then the signal sensor is reset.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention replaces the original openings at the bottom of the water pipe and the air pipe with nozzles, which solves the problem of the direction and position of the cooling medium injection. The air-cooling bracket prevents the sling from shaking, so that the sling is cooled evenly. The position of the punching die is changed to be freely adjustable left and right, and the length of the punching device is increased to meet the production of slings of different specifications. The production is continuous and automated, with high production efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of the working process of a production line for automobile seat slings.

[0021] Figure 2 This is a schematic diagram of the non-woven fabric composite structure of a production line for automobile seat slings of the present invention.

[0022] Figure 3 This is a top view of the non-woven fabric composite structure of a production line for automobile seat slings of the present invention.

[0023] Figure 4 The present invention is a schematic structural diagram of a cooling and shaping device for a production line for automobile seat slings.

[0024] Figure 5 The present invention is a top view of a cooling and shaping device of a production line for automobile seat slings.

[0025] Figure 6 The present invention is a schematic structural diagram of a water cooling device for a production line for automobile seat slings.

[0026] Figure 7 The present invention is a side view of a water cooling device for a production line for automobile seat slings.

[0027] Figure 8 This is a partially enlarged view of a water cooling device of a production line for automobile seat slings of the present invention.

[0028] Figure 9 The present invention is a schematic structural diagram of an air cooling device for a production line for automobile seat slings.

[0029] Figure 10 The present invention is a side view of an air cooling device for a production line of automobile seat slings.

[0030] Figure 11 This is a partially enlarged view of an air cooling device of a production line for automobile seat slings of the present invention.

[0031] Figure 12 The figure is a schematic structural diagram of a punching device of a production line for automobile seat slings of the present invention.

[0032] Figure 13 The figure is a side structural schematic diagram of a stamping mechanism of a production line for automobile seat slings of the present invention.

[0033] Figure 14 The figure is a side structural schematic diagram of a cutting mechanism of a production line for automobile seat slings of the present invention.

[0034] Figure 15 The present invention is a schematic structural diagram of a conveying device for a production line for automobile seat slings.

[0035] in:

[0036] Non-woven fabric 101, sling 102;

[0037] Non-woven fabric feeding system 1, extruder 2, composite die 3, cooling device 4, haul-off machine 5, punching device 6 and conveying device 7;

[0038] Material rack 1.1, guide wheel 1.2, tensioning device 1.3, guide groove 1.4;

[0039] Cooling and shaping device 4.1, water cooling device 4.2, air cooling device 4.3, water inlet pipe 4.1.1, water outlet pipe 4.1.2, water cooling bracket 4.2.1, water pipe 4.2.2, water nozzle 4.2.3, water cooling folding plate 4.2.4, water cooling slit 4.2.5, air cooling bracket 4.3.1, air pipe 4.3.2, air nozzle 4.3.3, air cooling folding plate 4.3.4, air cooling slit 4.3.5;

[0040] Punching platform 6.1, pinch roller 6.2, punching mechanism 6.3, cutting mechanism 6.4, material receiving chute 6.5, punching base 6.1.1, punching beam 6.1.2, punching die 6.3.1, pressure block 6.3.2, limit rod 6.3.3, punching cylinder 6.3.4, cutting die 6.4.1, cutting cylinder 6.4.2, punching lower die 6.3.1.1, punching upper die 6.3.1.2, punching knife 6.3. 1.3, stamping spring 6.3.1.4, stamping limit bolt 6.3.1.5, stamping material trough 6.3.1.6, stamping knife guide groove through hole 6.3.1.7, cutting lower die 6.4.1.1, cutting upper die 6.4.1.2, cutting knife 6.4.1.3, cutting spring 6.4.1.4, cutting limit bolt 6.4.1.5, cutting material trough 6.4.1.6, cutting knife guide groove through hole 6.4.1.7;

[0041] Conveying mechanism 7.1, signal sensor 7.2, conveyor belt 7.1.1, driving wheel 7.1.2, driven wheel 7.1.3, tensioning wheel 7.1.4. DETAILED DESCRIPTION

[0042] See also Figure 1 The present invention relates to a production line for automobile seat slings and a process thereof. The production process for automobile seat slings is realized based on a production line for automobile seat slings. The production line for automobile seat slings comprises a non-woven fabric feeding system 1, an extruder 2, a composite mold 3, a cooling device 4, a tractor 5, a punching device 6, and a conveying device 7; the non-woven fabric feeding system 1 and the extruder 2 are arranged in the front of the composite mold 3, and the discharge port of the extruder 2 is connected to one end of the composite mold 3; the composite mold 3, the cooling device 4, the tractor 5, the punching device 6, and the conveying device 7 are arranged in sequence;

[0043] The non-woven fabric feeding system 1 comprises a material rack 1.1, a guide wheel 1.2, a tensioning device 1.3 and a guide groove 1.4; the guide groove 1.4 corresponds to the non-woven fabric inlet position of the composite mold 3;

[0044] The cooling device 4 includes a cooling and shaping device 4.1, a water cooling device 4.2 and an air cooling device 4.3; water inlet pipes 4.1.1 and water outlet pipes 4.1.2 are provided on both sides of the cooling and shaping device 4.1; the cooling and shaping device 4.1, the water cooling device 4.2 and the air cooling device 4.3 are arranged in sequence; the water cooling device 4.2 includes a water cooling bracket 4.2.1, a water pipe 4.2.2 and a water nozzle 4.2.3; the water pipe 4.2.2 is arranged in parallel just above the water cooling bracket 4.2.1; the water nozzle 4.2.3 is installed at the bottom of the water pipe 4.2.2; the water cooling bracket 4.2.1 includes two symmetrically arranged water cooling folding plates 4.2.4, the top edges of the two water cooling folding plates 4.2.4 are close to each other to form a water cooling slit 4.2.5; the air cooling device 4.3 includes an air cooling bracket 4.3.1, air pipe 4.3.2 and air nozzle 4.3.3; the air pipe 4.3.2 is arranged parallel to and directly above the air-cooling bracket 4.3.1; the air nozzle 4.3.3 is installed at the bottom of the air pipe 4.3.2; the air-cooling bracket 4.3.1 comprises two symmetrically arranged air-cooling folding plates 4.3.4, which are close to each other to form an air-cooling slit 4.3.5; the tightening belt 102 is in sliding contact with the top edges of the two water-cooling folding plates 4.2.4, and the tightening belt 102 is in sliding contact with the side surfaces of the two air-cooling folding plates 4.3.4; the widths of the water-cooling slit 4.2.5 and the air-cooling slit 4.3.5 are both smaller than the width of the plastic at the top of the tightening belt 102; the running axes of the tightening belts of the cooling and shaping device 4.1, the water-cooling bracket 4.2.1 and the air-cooling bracket 4.3.1 coincide with each other;

[0045] The punching device 6 comprises a punching platform 6.1, a pinching roller 6.2, a punching mechanism 6.3 and a cutting mechanism 6.4; the punching platform 6.1 comprises a punching base 6.1.1 and a punching beam 6.1.2, and the punching beam 6.1.2 is installed directly above the punching base 6.1.1; the pinching roller 6.2, the punching mechanism 6.3 and the cutting mechanism 6.4 are sequentially arranged on the punching platform 6.1; the punching device 6 comprises multiple sets of punching mechanisms 6.3; the punching mechanism 6.3 comprises a punching die set 6.3.1, a pressure block 6.3.2, a limit rod 6.3.3 and a punching cylinder 6.3.4; the punching die 6.3.1 is slidably mounted on the punching base through a base pressure plate 6.1.1.1 and a base bolt 6.1.1.2 The cutting base 6.1.1; the pressure block 6.3.2 is arranged between the punching die 6.3.1 and the punching beam 6.1.2; the lower end of the limit rod 6.3.3 is installed on the pressure block 6.3.2, and the upper end of the limit rod 6.3.3 is slidably arranged in the limit through hole on the punching beam 6.1.2; the fixed end of the punching cylinder 6.3.4 is installed on the punching beam 6.1.2, and the movable end of the punching cylinder 6.3.4 passes through the punching beam 6.1.2 and is connected to the pressure block 6.3.2; the punching die 6.3.1 includes a punching lower die 6.3.1.1, a punching upper die 6.3.1.2, a punching knife 6.3.1.3, a punching spring 6.3.1.4 and a punching limit bolt 6.3.1.5; the punching lower die 6.3 .1.1 is provided with a stamping material trough 6.3.1.6; the stamping lower die 6.3.1.1 and the stamping upper die 6.3.1.2 are connected by a stamping spring 6.3.1.4 and a stamping limit bolt 6.3.1.5; the stamping lower die 6.3.1.1 and the stamping upper die 6.3.1.2 are provided with a stamping knife guide groove through hole 6.3.1.7 at the corresponding position, the upper part of the stamping knife 6.3.1.3 is fixedly installed inside the stamping knife guide groove through hole 6.3.1.7 of the stamping upper die 6.3.1.2, and the lower part of the stamping knife 6.3.1.3 is slidably embedded in the stamping knife guide groove through hole 6.3.1.7 of the stamping lower die 6.3.1.1; the stamping knife 6.3.1.3 and the stamping knife guide groove through hole 6.3.1.7 The cross-sectional shape corresponds to the hole shape on the sling 102 and can be waist-shaped, circular, or triangular. The punching material trough 6.3.1.6 and the punching knife guide hole 6.3.1.7 are perpendicular to each other. The cutting mechanism 6.4 comprises a cutting module 6.4.1 and a cutting cylinder 6.4.2. The cutting module 6.4.1 is mounted on the punching base 6.1.1. The fixed end of the cutting cylinder 6.4.2 is mounted on the punching beam 6.1.2, and the movable end of the cutting cylinder 6.4.2 passes through the punching beam 6.1.2 and is connected to the cutting module 6.4.1. The cutting module 6.4.1 comprises a cutting lower die 6.4.1.1, a cutting upper die 6.4.1.2, a cutting knife 6.4.1.3, and a cutting spring 6.4.1.4 and cutting limit bolt 6.4.1.5; the cutting material groove 6.4.1.6 is provided in the cutting lower die 6.4.1.1; the cutting lower die 6.4.1.1 and the cutting upper die 6.4.1.2 are connected by the cutting spring 6.4.1.4 and the cutting limit bolt 6.4.1.5; the cutting lower die 6.4.1.1 is provided with a cutting knife guide groove through hole 6.4.1.7; the upper part of the cutting knife 6.4.1.3 is fixedly mounted on the cutting upper die 6. 4.1.2, the lower portion of the cutting blade 6.4.1.3 slides into the cutting blade guide hole 6.4.1.7; the cutting material trough 6.4.1.6 is perpendicular to the cutting blade guide hole 6.4.1.7; the axes of the stamping material trough 6.3.1.6 and the cutting material trough 6.4.1.6 coincide with the operating axis of the tensioning belt 102; a receiving trough 6.5 is provided directly below the stamping lower die 6.3.1.1 and the cutting lower die 6.4.1.1.

[0046] The conveying device 7 includes a conveying mechanism 7.1 and a signal sensor 7.2; the signal sensor 7.2 is arranged directly above the conveying mechanism 7.1; the conveying mechanism 7.1 includes a conveyor belt 7.1.1, a driving wheel 7.1.2, a driven wheel 7.1.3 and a tensioning wheel 7.1.4; the conveyor belt 7.1.1 is connected to the driving wheel 7.1.2, the driven wheel 7.1.3 and the tensioning wheel 7.1.4 respectively; the driving wheel 7.1.2 and the driven wheel 7.1.3 are arranged on the same horizontal line, the driven wheel 7.1.3 is in the front lane and the driving wheel 7.1.2 is in the rear lane; the distance between the signal sensor 7.2 and the cutting mechanism 4 is consistent with the specification length of the tensioning belt; the horizontal running axis of the conveyor belt 7.1.1 coincides with the running axis of the tensioning belt 102 of the punching device 6.

[0047] The process steps of the production process for the automobile seat sling are as follows:

[0048] Step 1: Extrusion lamination: A nonwoven fabric roll mounted on a material rack 1.1 is tensioned and guided by a tensioning device 1.3 and multiple guide wheels 1.2, then passes through a guide slot 1.4 and enters a laminating die 3. Modified PP plastic particles are heated and extruded into the laminating die 3 by an extruder 2. Within the laminating die 3, the molten PP and nonwoven fabric combine to form a sling 102.

[0049] Step 2: Cooling: The hot lifting belt 102 coming out of the composite mold 3 first enters the cooling and shaping device 4.1 for cooling and shaping. After cooling and shaping, the lifting belt 102 continues to enter the water cooling device 4.2 for further cooling. The non-woven fabric part of the lifting belt 102 enters the water cooling slit 4.2.5, and the plastic part is above the water cooling slit 4.2.5. Cooling water is evenly dropped from the water nozzle 4.2.3 on the plastic part to cool it. The excess cooling water is discharged through the inclined surface of the air cooling folding plate 4.3.4 on both sides and the inside of the air cooling bracket 4.3.1. The hollow structure quickly flows away, preventing water from accumulating on the tensioning belt 102. The water-cooled tensioning belt 102 enters the air cooling device 4.3 for further cooling. The non-woven fabric portion of the tensioning belt 102 enters the air cooling slit 4.3.5, and the plastic portion is above the air cooling slit 4.3.5. Compressed air is evenly sprayed from the air nozzle 4.3.3 onto the plastic portion, cooling and drying the water-cooled tensioning belt 102. The air cooling slit 4.3.5 is in surface contact with the non-woven fabric portion of the tensioning belt 102, preventing the tensioning belt 102 from shaking during the blowing.

[0050] Step 3: Traction: The tension belt 102 cooled by the cooling device 4 enters the traction machine 5, which transforms the cross section of the tension belt 102 from a vertical state to a horizontal state;

[0051] Step 4: Pinch and feed: The transverse tension belt 102 of the tractor 5 enters the pinch roller 6.2, and the feed roller 6.2 stably feeds the tension belt 102 into the stamping material trough 6.3.1.6 of the stamping mechanism 6.3;

[0052] Step 5, punching: After the tensioning belt 102 enters the punching material trough 6.3.1.6, the punching mechanism 6.3 receives the punching signal, and the punching cylinder 6.3.4 pushes the pressing block 6.3.2 downward. The pressing block 6.3.2 pushes the punching upper die 6.3.1.2 of the punching die set 6.3.1 downward. At the same time, the punching knife 6.3.1.3 installed on the punching upper die 6.3.1.2 punches the tensioning belt 102 downward along the punching knife guide groove through hole 6.3.1.7 of the punching lower die 6.3.1.1. Then, the various devices of the punching mechanism 6.3 are reset, and the chips produced by the punching are collected through the receiving trough 6.5.

[0053] Step 6, cutting: After being punched, the tensioning belt 102 enters the cutting material trough 6.4.1.6 of the cutting mechanism 6.4. Upon receiving the cutting signal, the cutting cylinder 6.4.2 pushes the cutting upper die 6.4.1.2 of the cutting module 6.4.1 downward. The cutting knife 6.4.1.3 installed in the cutting upper die 6.4.1.2 moves downward along the cutting knife guide slot through hole 6.4.1.7 to cut the tensioning belt 102. Subsequently, the various devices of the cutting mechanism 6.4 are reset, and the cut chips are collected through the receiving trough 6.5.

[0054] Step 7, conveying: When the head of the tensioning belt 102 reaches the signal sensor 7.2, the signal sensor 7.2 sends a signal to the pinch roller 6.2, which clamps the tensioning belt 102 and stops moving forward. At the same time, it sends a start signal to the punching mechanism 6.3 and the cutting mechanism 6.4 to perform the punching and cutting operations. After the punching and cutting operations are completed, the pinch roller 6.2 continues to convey the tensioning belt 102 forward; because the operating speed of the conveyor belt 7.1.1 is much greater than the travel speed of the tensioning belt 102, the finished product 102 after cutting is quickly conveyed by the conveyor belt 7.1.1 to the finished product collection device, and then the signal sensor 7.2 is reset.

[0055] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A production line for automobile seat slings, characterized by: The production line for automobile seat suspenders comprises a non-woven fabric feeding system (1), an extruder (2), a composite mold (3), a cooling device (4), a traction machine (5), a punching device (6) and a conveying device (7); the non-woven fabric feeding system (1) and the extruder (2) are arranged in front of the composite mold (3), and the discharge port of the extruder (2) is connected to one end of the composite mold (3); the composite mold (3), the cooling device (4), the traction machine (5), the punching device (6) and the conveying device (7) are arranged in sequence; The cooling device (4) comprises a cooling and shaping device (4.1), a water cooling device (4.2) and an air cooling device (4.3); the cooling and shaping device (4.1), the water cooling device (4.2) and the air cooling device (4.3) are arranged in sequence; the water cooling device (4.2) comprises a water cooling bracket (4.2.1), a water pipe (4.2.2) and a water nozzle (4.2.3); the water pipe (4.2.2) is arranged in parallel directly above the water cooling bracket (4.2.1); The water nozzle (4.2.3) is installed at the bottom of the water pipe (4.2.2); the air cooling device (4.3) includes an air cooling bracket (4.3.1), an air pipe (4.3.2) and an air nozzle (4.3.3); the air pipe (4.3.2) is arranged in parallel just above the air cooling bracket (4.3.1); the air nozzle (4.3.3) is installed at the bottom of the air pipe (4.3.2); water inlet pipes ( 4.1.1) and a water outlet pipe (4.1.2); the water-cooling bracket (4.2.1) comprises two symmetrically arranged water-cooling folding plates (4.2.4), the top edges of the two water-cooling folding plates (4.2.4) being close to each other to form a water-cooling slit (4.2.5); the air-cooling bracket (4.3.1) comprises two symmetrically arranged air-cooling folding plates (4.3.4), the two air-cooling folding plates (4.3.4) being close to each other to form an air-cooling slit (4.3.5); the tightening belt (102) is in sliding contact with the top edges of the two water-cooling folding plates (4.2.4), and the tightening belt (102) is in sliding contact with the side surfaces of the two air-cooling folding plates (4.3.4); the widths of the water-cooling slit (4.2.5) and the air-cooling slit (4.3.5) are both smaller than the width of the plastic at the top of the tightening belt (102); The non-woven fabric belt of the tightening belt (102) is slidably embedded in the water-cooling slit (4.2.5) or the air-cooling slit (4.3.5), and the plastic layer portion of the tightening belt (102) is retained outside the two slits to prevent the tightening belt (102) from deflecting when water or air cools the plastic layer, thereby ensuring stable support for the tightening belt (102) during the cooling process, thereby maintaining continuous and stable cooling of the plastic layer.

2. The production line for automobile seat slings according to claim 1, characterized in that: The non-woven fabric feeding system (1) comprises a material rack (1.1), a guide wheel (1.2), a tensioning device (1.3) and a guide groove (1.4); the guide groove (1.4) corresponds to the non-woven fabric inlet position of the composite mold (3).

3. The production line for automobile seat suspender belts according to claim 2, characterized in that: The operating axes of the tightening belts of the cooling and shaping device (4.1), the water-cooling support (4.2.1) and the air-cooling support (4.3.1) coincide with each other.

4. The production line for automobile seat suspender belts according to claim 1, characterized in that: The punching device (6) comprises a punching platform (6.1), a pinch roller (6.2), a punching mechanism (6.3) and a cutting mechanism (6.4); the punching platform (6.1) comprises a punching base (6.1.1) and a punching beam (6.1.2), and the punching beam (6.1.2) is installed on the punching base ( 6.1.1); the pinch roller (6.2), the punching mechanism (6.3) and the cutting mechanism (6.4) are sequentially arranged on the punching platform (6.1); the punching mechanism (6.3) comprises a punching die set (6.3.1), a pressure block (6.3.2), a limit rod (6.3.3) and a punching cylinder (6.3.4); the punching die set (6.3.1) is connected to the base pressure plate (6.1.1.1) and the base bolt (6.1.1.1). .1.1.2) is slidably mounted on the punching base (6.1.1); the pressure block (6.3.2) is arranged between the punching die (6.3.1) and the punching beam (6.1.2); the lower end of the limit rod (6.3.3) is mounted on the pressure block (6.3.2), and the upper end of the limit rod (6.3.3) is slidably mounted in the limit through hole on the punching beam (6.1.2); the fixed end of the punching cylinder (6.3.4) is mounted on the punching beam ( 6.1.2), the movable end of the punching cylinder (6.3.4) passes through the punching beam (6.1.2) and is connected to the pressing block (6.3.2); the cutting mechanism (6.4) includes a cutting module (6.4.1) and a cutting cylinder (6.4.2); the cutting module (6.4.1) is installed on the punching base ( 6.1.1); the fixed end of the cutting cylinder (6.4.2) is installed on the punching beam ( 6.1.2), the movable end of the cutting cylinder (6.4.2) passes through the punching beam (6.1.2) and is connected to the cutting module (6.4.1); The punching device (6) includes multiple sets of punching mechanisms (6.3); the punching die set (6.3.1) includes a punching lower die (6.3.1.1), a punching upper die (6.3.1.2), a punching knife (6.3.1.3), a punching spring ( 6.3.1.4) and stamping limit bolts (6.3.1.5); the stamping lower die ( 6.3.1.1) is provided with a stamping material trough (6.3.1.6); the stamping lower die ( 6.3.1.1) and the stamping upper die (6.3.1.2) are connected by a stamping spring (6.3.1.4) and a stamping limit bolt (6.3.1.5); the stamping lower die ( 6.3.1.1) and the stamping die (6.3.1.2) are provided with a stamping knife guide slot through hole (6.3.1.7) at the corresponding position. The stamping knife ( 6.3.1.3) is fixed on the upper part of the stamping die ( The lower part of the punching knife (6.3.1.3) is slidably embedded in the punching lower die (6.3.1.7) of the punching knife guide groove of 6.3.1.2). 6.3.1.1) in the punching knife guide groove through hole (6.3.1.7); the cutting module ( 6.4.1) including cutting die ( 6.4.1.1), cutting die (6.4.1.2), cutting knife ( 6.4.1.3) Cut off the spring ( 6.4.1.4) and cut off the limit bolts ( 6.4.1.5); the cutting die ( 6.4.1.1) is provided with a cutting material trough (6.4.1.6); the cutting lower die ( 6.4.1.1) and cut off the upper die (6.4.1.2) by cutting off the spring ( 6.4.1.4) and cut off the limit bolts ( 6.4.1.5) are connected; the cutting lower die ( 6.4.1.1) is provided with a cutting knife guide slot through hole (6.4.1.7); the cutting knife ( 6.4.1.3) is fixed on the upper part of the cutting die ( 6.4.1.2) on the cutting knife ( 6.4.1.3) is slidably embedded in the cutting knife guide groove through hole (6.4.1.7); the stamping lower die ( 6.3.1.1) and cut-off die ( A receiving trough (6.5) is provided directly below the container (6.4.1.1).

5. The production line for automobile seat suspender belts according to claim 4, characterized in that: The cross-sectional shape of the punching knife (6.3.1.3) and the punching knife guide groove through hole (6.3.1.7) is consistent with the hole shape on the tightening belt (102), and is waist-shaped, circular or triangular; the punching material groove ( 6.3.1.6) and the punching knife guide groove through hole (6.3.1.7); the cutting material groove ( 6.4.1.6) is perpendicular to the cutting knife guide groove through hole (6.4.1.7); the stamping material groove ( The axis of the cutting chute (6.4.1.6) and the cutting chute (6.3.1.6) coincides with the running axis of the lifting belt (102).

6. The production line for automobile seat suspender belts according to claim 1, characterized in that: The conveying device (7) comprises a conveying mechanism (7.1) and a signal sensor (7.2); the signal sensor (7.2) is arranged directly above the conveying mechanism (7.1); the conveying mechanism (7.1) comprises a conveyor belt (7.1.1), a driving wheel (7.1.2), a driven wheel (7.1.3) and a tensioning wheel (7.1.4); the conveyor belt (7.1.1) is connected to the driving wheel (7.1.2), the driven wheel (7.1.3) and the tensioning wheel (7.1.4) respectively; the driving wheel (7.1.2) and the driven wheel (7.1.3) are arranged on the same horizontal line, the driven wheel (7.1.3) is in the front lane, and the driving wheel (7.1.2) is in the rear lane.

7. A production process for automobile seat slings, characterized by: The production process for automobile seat slings is realized based on the production line for automobile seat slings according to claim 1, and the process steps of the production process for automobile seat slings are as follows: Step 1, extrusion lamination: a non-woven fabric roll mounted on a material rack (1.1) is tensioned and guided by a tensioning device (1.3) and a plurality of guide wheels (1.2), passes through a guide groove (1.4), and then enters a composite mold (3); modified PP plastic particles are heated and extruded into the composite mold (3) through an extruder (2); in the composite mold (3), the molten PP and the non-woven fabric are combined to form a sling (102); Step 2, cooling: The hot lifting belt (102) coming out of the composite mold (3) first enters the cooling and shaping device (4.1) for cooling and shaping; after cooling and shaping, the lifting belt (102) continues to enter the water cooling device (4.2) for further cooling, the non-woven fabric part of the lifting belt (102) enters the water cooling slit (4.2.5), and the plastic part is above the water cooling slit (4.2.5). Cooling water evenly falls on the plastic part from the water nozzle (4.2.3) to cool it, and the excess cooling water passes through the inclined surface of the air cooling folding plate (4.3.4) on both sides and the inside of the air cooling bracket (4.3.1). The hollow structure flows away quickly to avoid water accumulation on the tensioning belt (102); the water-cooled tensioning belt (102) enters the air cooling device (4.3) for further cooling, the non-woven fabric part of the tensioning belt (102) enters the air cooling slit (4.3.5), and the plastic part is above the air cooling slit (4.3.5). Compressed air is evenly sprayed from the air nozzle (4.3.3) to the plastic part, and while cooling, the water-cooled tensioning belt (102) is blown dry. The air cooling slit (4.3.5) and the non-woven fabric of the tensioning belt (102) are in surface contact, which can prevent the tensioning belt (102) from shaking when blowing air; Step 3, traction: the tensioning belt (102) cooled by the cooling device (4) enters the traction machine (5), and the traction machine (5) changes the cross section of the tensioning belt (102) from a vertical state to a horizontal state; Step 4, pinching and feeding: the transverse lifting belt (102) passes through the traction machine (5) and enters the pinching roller (6.2). The feeding roller (6.2) feeds the lifting belt (102) into the stamping material trough (6.3.1.6) of the stamping mechanism (6.3); Step 5, punching: the lifting belt (102) enters the punching material slot ( 6.3.1.6), the stamping mechanism (6.3) receives the stamping signal, the stamping cylinder (6.3.4) pushes the pressing block (6.3.2) downward, the pressing block (6.3.2) pushes the stamping upper die (6.3.1.2) of the stamping die set (6.3.1) to move downward, and at the same time the stamping knife ( 6.3.1.3) Along the punching die ( The punching knife guide groove through hole (6.3.1.7) of 6.3.1.1) punches the tensioning belt (102) downward, and then the various devices of the punching mechanism (6.3) are reset, and the debris under the punching is collected through the receiving trough (6.5); Step 6, cutting: The punched lifting belt (102) enters the cutting material slot (6.4) of the cutting mechanism (6.4). 6.4.1.6), the cutting mechanism (6.4) receives the cutting signal, and the cutting cylinder (6.4.2) pushes the cutting module downward ( 6.4.1) of the cut-off die ( 6.4.1.2), installed on the cutting die ( 6.4.1.2) of the cutting knife ( 6.4.1.3) Cut the tension belt (102) downward along the cutting knife guide groove through hole (6.4.1.7), then reset the various devices of the cutting mechanism (6.4), and collect the cut debris through the receiving trough (6.5); Step 7, conveying: When the head of the tensioning belt (102) reaches the signal sensor (7.2), the signal sensor (7.2) sends a signal to the pinch roller (6.2), and the pinch roller (6.2) clamps the tensioning belt (102) and stops moving forward. At the same time, it sends a start signal to the punching mechanism (6.3) and the cutting mechanism (6.4) to perform the punching and cutting operations. After the punching and cutting are completed, the pinch roller (6.2) continues to convey the tensioning belt (102) forward; since the operating speed of the conveyor belt (7.1.1) is much greater than the travel speed of the tensioning belt (102), the finished product tensioning belt (102) after being cut is quickly sent to the finished product collection device by the conveyor belt (7.1.1), and then the signal sensor (7.2) is reset.

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