An automatic production line for rotary body type preforms

Abstract

The application discloses a rotary body type prefabricated body automatic production line, which comprises a feeding mechanism, an automatic feeding mechanism, a prefabricated body supporting die and a needling mechanism arranged in sequence. The prefabricated body supporting die comprises a middle shaft, a left supporting die and a right supporting die with different diameters which are fixed on the middle shaft at intervals. The middle shaft is installed on a fixed frame below the middle shaft. The fixed frame is provided with the needling mechanism on the top of the fixed frame and beyond the prefabricated body supporting die. The prefabricated body supporting die is also provided with an upper tensioning wheel and a lower tensioning wheel which are parallel to the upper plane of the prefabricated body supporting die. Two vertical linear sliding rails are arranged on the fixed frame, and two groups of symmetrically arranged electric sliding blocks are installed on the two linear sliding rails. Each group of electric sliding blocks is located at the two ends of the upper tensioning wheel or the lower tensioning wheel. Through the above design, the technical problems that the existing rotary body type prefabricated body needling is manually operated and the automatic production is not realized, and the production efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of nonwoven preform production, specifically to an automated production line for rotary preforms. Background Technology

[0002] The main processes for needle-punched nonwoven preforms include material cutting, material layup, needle punching of flat preforms, and cutting of flat preforms. Currently, in the production process of needle-punched flat preforms, only the needle punching process is automated; all other processes are performed manually. This process has the following shortcomings:

[0003] 1) Low production efficiency: The processes of material cutting, material layering, and non-woven prefabricated body cutting are all done manually, and each process is operated separately. The connection between processes relies on manual handling, without any automated connection, resulting in low production efficiency.

[0004] 2) High product cost: The production of non-woven fabric prefabrication requires at least 3-4 people to operate, resulting in high labor costs and thus high product cost;

[0005] 3) Unstable product quality: Manual processes are unstable, which affects the stability of product quality in mass production.

[0006] To address this issue, our company provides an automated production line for rotary precast structures. Summary of the Invention

[0007] The purpose of this invention is to overcome the defects in the prior art and provide an automated production line for rotating prefabricated bodies.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An automated production line for rotary precast bodies includes a feeding mechanism, an automatic feeding mechanism, a precast body support mold, and a needle punching mechanism arranged sequentially.

[0010] The precast support mold includes a central core shaft, a left support mold and a right support mold of different diameters that are spaced and fixed on the central core shaft. The central core shaft is installed on a fixed frame below the central core shaft. The top of the fixed frame extends beyond the precast support mold and is provided with a needle punching mechanism. An upper tensioning wheel and a lower tensioning wheel parallel to the upper plane of the precast support mold are also provided on one side of the precast support mold.

[0011] The fixed frame is vertically equipped with two linear slide rails, and two sets of symmetrically arranged electric sliders are installed on the two linear slide rails. Each set of electric sliders is located at both ends of the upper tensioning wheel or the lower tensioning wheel. Each electric slider is equipped with a telescopic cylinder, and the telescopic rod of the telescopic cylinder is connected to both ends of the upper tensioning wheel or the lower tensioning wheel.

[0012] Preferably, the left support mold and the right support mold are as follows: the left support mold includes two left circular plates that are fixedly inserted at intervals on one side of the central mandrel, and multiple support rods are evenly distributed circumferentially between the edges of the two left circular plates; the right support mold includes two right circular plates that are fixedly inserted at intervals on the other side of the central mandrel, and multiple support rods are evenly distributed circumferentially between the edges of the two right circular plates.

[0013] Preferably, the central mandrel is mounted on a fixed frame below the central mandrel via a support mechanism. The support mechanism includes an auxiliary adjustment seat and a support seat. The top of the auxiliary adjustment seat is provided with a servo lifting mechanism. The output end of the servo lifting mechanism is fixedly connected to the other end of the central mandrel via a bearing seat. The top of the support seat is rotatably connected to a rotating plate. The top of the rotating plate is fixedly connected to one end of the central mandrel via a bearing seat.

[0014] Preferably, the top of the fixing frame is provided with a top plate, and the needle-piercing mechanism includes a servo lifting mechanism disposed through the top plate and a needle-piercing head connected to the output end of the servo lifting mechanism.

[0015] Preferably, the automatic feeding mechanism includes a six-axis robotic arm, the output end of which is connected to a fixed plate. Multiple small needle-piercing machines and multiple vacuum suction cups are fixed at the bottom of the fixed plate, and the small needle-piercing machines and vacuum suction cups are arranged alternately.

[0016] Preferably, the feeding mechanism includes a spreading frame and a conveyor adjacent to the spreading frame, and the conveyor is equipped with a fabric spreading machine and a fabric cutting machine.

[0017] Preferably, the material spreading frame has multiple horizontal bars fixed longitudinally, each horizontal bar has a fabric limiting sleeve fixed on it, and each horizontal bar has a tension shaft on one side.

[0018] Preferably, the fixing frame is also provided with a slide for adjusting the distance between the auxiliary adjustment seat and the support seat, and the bottom of the auxiliary adjustment seat and the support seat are respectively provided with a boss that matches the slide.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. Improved production efficiency: The unit layer fabric laying, fabric cutting, support mold laying, and preform needle punching processes of the present invention are all automated and connected without human intervention, realizing automated and continuous production and improving production efficiency.

[0021] 2. Product quality is guaranteed: Through automated production, the fabric cutting size is guaranteed to be consistent, the support mold is automatically laid with uniform and consistent thickness, and the quality of mass-produced products is guaranteed to be consistent.

[0022] 3. Save on material and labor costs: This machine uses automated fabric cutting to ensure consistent material dimensions. Compared with manual cutting, there is less material waste. At the same time, automated production reduces the number of operators from at least 3 to 1, saving a lot of material and labor costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram (three-dimensional view) of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram (three-dimensional view) of the prefabricated support mold structure of the present invention;

[0025] Figure 3 This is a schematic diagram (plan view) of the prefabricated support mold structure of the present invention;

[0026] Figure 4 This is a schematic diagram (plan view) of the automatic feeding machine of the present invention;

[0027] Figure 5 This is a schematic diagram (three-dimensional view) of the material spreading rack structure of the present invention.

[0028] In the diagram: 1. Feeding mechanism; 11. Laying rack; 111. Crossbar; 112. Fabric limiting sleeve; 113. Tension shaft; 114. Pressing shaft; 12. Conveyor; 13. Fabric spreading machine; 14. Fabric cutting machine; 2. Automatic feeding mechanism; 21. Six-axis robotic arm; 22. Fixing plate; 23. Small needle-punching machine; 24. Vacuum suction cup; 3. Precast support mold; 31. Central spindle; 32. Left support mold; 321. Left circular plate; 33. Right support mold 331. Right circular plate; 34. Upper tensioning wheel; 35. Lower tensioning wheel; 36. Support rod; 37. Precast mold; 4. Needle punching mechanism; 41. Servo lifting mechanism; 42. Needle punching head; 5. Fixing frame; 51. Linear slide rail; 52. Electric slider; 53. Telescopic cylinder; 54. Top plate; 6. Support mechanism; 61. Auxiliary adjustment seat; 611. Servo lifting mechanism; 621. Rotating plate; 62. Support seat; 7. Slide rail; 71. Boss.

[0029] A preferred embodiment of the present invention will now be described in conjunction with the accompanying drawings, providing a clear and complete description of the technical solution in this preferred embodiment.

[0030] An automated production line for rotary precast bodies includes a feeding mechanism 1, an automatic feeding mechanism 2, a precast body support mold 3, and a needle punching mechanism 4 arranged sequentially.

[0031] The precast support mold 3 includes a central core shaft 31, a left support mold 32 and a right support mold 33 of different diameters that are fixedly mounted on the central core shaft 31 at intervals, and precast molds 37 are fixedly mounted on the left support mold 32 and the right support mold 33. The central core shaft 31 is mounted on a fixing frame 5 below the central core shaft 31. The top of the fixing frame 5 extends beyond the precast support mold 3 and is provided with a needle punching mechanism 4. An upper tensioning wheel 34 and a lower tensioning wheel 35 parallel to the upper plane of the precast support mold 3 are also provided on one side of the precast support mold 3.

[0032] The fixed frame 5 is vertically provided with two linear slide rails 51, and two sets of symmetrically arranged electric sliders 52 are installed on the two linear slide rails 51. Each set of electric sliders 52 is located at both ends of the upper tensioning wheel 34 or the lower tensioning wheel 35. Each electric slider 52 is provided with a telescopic cylinder 53, and the telescopic rod of the telescopic cylinder 53 is connected to both ends of the upper tensioning wheel 34 or the lower tensioning wheel 35.

[0033] Through the above design, when the preform is needled, one end of the central shaft 31 is connected to the rotary drive motor. The feeding mechanism 1 pulls the laid unit layer structure fabric to the automatic feeding mechanism 2. The automatic feeding mechanism 2 grabs the unit layer structure fabric and places it on the preform support mold 3, and performs the initial fixation of the unit layer structure fabric. Then, the upper tensioning wheel 34 and the lower tensioning wheel 35 are automatically adjusted to a position parallel to the upper plane of the preform support mold 3 by the two linear slide rails 51 and the electric slider 52. The upper tensioning wheel 34 and the lower tensioning wheel 35 are used to fix the remaining unit layer structure fabric.

[0034] The telescopic cylinder 53, mounted on the electric slider 52, automatically adjusts the extension length of the upper tension wheel 34 and the lower tension wheel 35, enabling them to clamp the fabric and apply a small tension force to taut the fabric. This, in conjunction with the needle punching mechanism 4, performs needle punching on the preform until the circumferential needle punching of the preform support mold 3 is completed. After the preform support mold 3 is completed, the upper tension wheel 34 and the lower tension wheel 35 return to their original positions via the linear slide rail 51 and the electric slider 52. The entire fixing process of this invention does not require manual intervention, achieving automated and continuous production and improving production efficiency.

[0035] Specifically, the left support mold 32 and the right support mold 33 are as follows: the left support mold 32 includes two left circular plates 321 that are fixed at intervals on one side of the central core shaft 31, and multiple support rods 36 are evenly distributed circumferentially between the edges of the two left circular plates 321; the right support mold 33 includes two right circular plates 331 that are fixed at intervals on the other side of the central core shaft 31, and multiple support rods 36 are evenly distributed circumferentially between the edges of the two right circular plates 331.

[0036] Through the above design, the prefabricated mold 37 is fixed on the support rods 36 of the left support mold 32 and the right support mold 33, ensuring that the prefabricated mold 37 rotates with the central shaft 31. The prefabricated mold 37 is made of soft material, which can protect the needle from damage. By changing the diameter difference between the left circular plate 321 and the right circular plate 331, the prefabricated mold 37 can be designed as a cone shape or a cylinder shape to support and fix prefabricated bodies of different shapes.

[0037] Specifically, the central spindle 31 is mounted on the fixed frame 5 below the central spindle 31 via the support mechanism 6. The support mechanism 6 includes an auxiliary adjustment seat 61 and a support seat 62. The top of the auxiliary adjustment seat 61 is provided with a servo lifting mechanism 611. The output end of the servo lifting mechanism 611 is fixedly connected to the other end of the central spindle 31 via a bearing seat. The top of the support seat 62 is rotatably connected to a rotating plate 621. The top of the rotating plate 621 is fixedly connected to one end of the central spindle 31 via a bearing seat.

[0038] Through the above design, the servo lifting mechanism 611 on the auxiliary adjustment seat 61 can adjust the horizontal angle of the central spindle 31. When needle-punching the cylindrical rotary preform, the central spindle 31 is in a horizontal state. When needle-punching the tapered rotary preform, the central spindle 31 uses the rotating plate 621 as a fulcrum and lifts one end of the central spindle 31 through the auxiliary adjustment seat 61 to adjust it to a certain taper with the horizontal, so that the upper plane of the preform mold 37 is horizontal with the needle-punching head, satisfying the needling of the tapered rotary preform and the cylindrical rotary preform on one machine.

[0039] Specifically, the top of the fixed frame 5 is provided with a top plate 54, and the needle-piercing mechanism 4 includes a servo lifting mechanism 41 that passes through the top plate 54 and a needle-piercing head 42 connected to the output end of the servo lifting mechanism 41.

[0040] Through the above design, the servo lifting mechanism 41 adjusts the height of the needle head 42 to meet the needs of needle piercing rotary preforms of different diameters. When needle piercing large-diameter rotary preforms, the needle head 42 is raised, and when needle piercing small-diameter rotary preforms, the needle head 42 is lowered.

[0041] Specifically, the automatic feeding mechanism 2 includes a six-axis robotic arm 21, the output end of which is connected to a fixed plate 22. Multiple small needle-piercing machines 23 and multiple vacuum suction cups 24 are fixed at the bottom of the fixed plate 22, and the small needle-piercing machines 23 and vacuum suction cups 24 are arranged alternately.

[0042] Through the above design, the six-axis robotic arm 21 plans the path for gripping and placing the fabric according to the pre-made outer dimensions. The vacuum suction cup 24 is responsible for gripping and fixing the fabric. The six-axis robotic arm 21 places the fabric on the pre-made mold 37, which is a soft support material. At the same time, the small needle-punching machine 23 pierces the fabric and fixes it on the pre-made mold 37. The vacuum suction cup 24 stops working. After the fabric is initially fixed, the automatic feeding mechanism completes the feeding process and returns to the initial position.

[0043] Specifically, the feeding mechanism 1 includes a spreading frame 11 and a conveyor 12 adjacent to the spreading frame 11. The conveyor 12 is equipped with a fabric spreading machine 13 and a fabric cutting machine 14.

[0044] Through the above design, the fabric spreading machine 13 pulls the unit layer structure fabric laid on the spreading frame 11 onto the conveyor 12, the conveyor 12 pulls the fabric onto the cutting machine 14, the fabric spreading machine 13 cuts the spread fabric, and the cutting machine 14 cuts the fabric to the required size of the needle-punched preform.

[0045] Specifically, the material spreading frame 11 has multiple horizontal bars 111 fixed longitudinally, each horizontal bar 111 is fixed with a fabric limiting sleeve 112, each horizontal bar 111 is provided with a tension shaft 113 on one side, and the material spreading frame 11 is also provided with a fabric pressing shaft 114 on the upper side.

[0046] Through the above design, the rolled fabric 100 is placed on the crossbar 111. Depending on the different unit structures, different rolled fabrics 100 and the mesh can be layered, and the placement sequence of the fabrics constitutes the unit layer layup structure. The fabric limiting sleeve 112 restricts the fabric position, while the tension shaft 113 simultaneously works to tighten and straighten each layer of fabric. The pressing shaft 114 then tensions the unit layer structure fabric a second time before it is pulled out by the fabric spreading machine 13.

[0047] Specifically, the fixing frame 5 is also provided with a slide 7 for adjusting the distance between the auxiliary adjustment seat 61 and the support seat 62, and the bottom of the auxiliary adjustment seat 61 and the support seat 62 are respectively provided with a boss 71 that matches the slide.

[0048] Through the above design, the fixed frame 5 is provided with a slide 7, and the auxiliary adjustment seat 61 and the support seat 62 are fixed and slidably positioned. By changing the distance between the two through the slide 7, the needle punching production of rotating preforms of different lengths can be met.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated production line for rotary precast bodies, characterized in that, include: The feeding mechanism (1), the automatic feeding mechanism (2), the preform support mold (3) and the needle punching mechanism (4) are set in sequence. The precast support mold (3) includes a central mandrel (31), a left support mold (32) and a right support mold (33) of different diameters that are fixedly mounted on the central mandrel (31) at intervals. A precast mold (37) is fixedly mounted on the left support mold (32) and the right support mold (33). The central mandrel (31) is mounted on a fixed frame (5) below the central mandrel (31). The top of the fixed frame (5) extends beyond the precast support mold (3) and is provided with a needle punching mechanism (4). An upper tensioning wheel (34) and a lower tensioning wheel (35) parallel to the upper plane of the precast support mold (3) are also provided on one side of the precast support mold (3). The fixed frame (5) is vertically provided with two linear slide rails (51), and two sets of symmetrically arranged electric sliders (52) are installed on the two linear slide rails (51). Each set of electric sliders (52) is located at both ends of the upper tension wheel (34) or the lower tension wheel (35). Each electric slider (52) is provided with a telescopic cylinder (53), and the telescopic rod of the telescopic cylinder (53) is connected to both ends of the upper tension wheel (34) or the lower tension wheel (35). The left support mold (32) and the right support mold (33) are described. The left support mold (32) includes two left circular plates (321) that are fixed at intervals on one side of the central core shaft (31), and multiple support rods (36) are evenly distributed circumferentially between the edges of the two left circular plates (321). The right support mold (33) includes two right circular plates (331) that are fixed at intervals on the other side of the central core shaft (31), and multiple support rods (36) are evenly distributed circumferentially between the edges of the two right circular plates (331). The central spindle (31) is mounted on the fixed frame (5) below the central spindle (31) by the support mechanism (6). The support mechanism (6) includes an auxiliary adjustment seat (61) and a support seat (62). The top of the auxiliary adjustment seat (61) is provided with a servo lifting mechanism (611). The output end of the servo lifting mechanism (611) is fixedly connected to one end of the central spindle (31) through a bearing seat. The top of the support seat (62) is rotatably connected to a rotating plate (621). The top of the rotating plate (621) is fixedly connected to the other end of the central spindle (31) through a bearing seat. The automatic feeding mechanism (2) includes a six-axis robotic arm (21). The output end of the six-axis robotic arm (21) is connected to a fixed plate (22). Multiple small needle-piercing machines (23) and multiple vacuum suction cups (24) are fixed at the bottom of the fixed plate (22). The small needle-piercing machines (23) and vacuum suction cups (24) are arranged alternately.

2. The automated production line for rotary precast bodies according to claim 1, characterized in that, The top of the fixed frame (5) is provided with a top plate (54), and the needle piercing mechanism (4) includes a servo lifting mechanism (41) that passes through the top plate (54) and a needle piercing head (42) connected to the output end of the servo lifting mechanism (41).

3. The automated production line for rotary precast bodies according to claim 1, characterized in that, The feeding mechanism (1) includes a spreading frame (11) and a conveyor (12) adjacent to the spreading frame (11). The conveyor (12) is equipped with a fabric spreading machine (13) and a fabric cutting machine (14).

4. The automated production line for rotary precast bodies according to claim 3, characterized in that, The material spreading frame (11) has multiple horizontal bars (111) fixed longitudinally, each horizontal bar (111) has a fabric limiting sleeve (112) fixed on it, each horizontal bar (111) has a tension shaft (113) on one side, and the material spreading frame (111) also has a pressing shaft (114) on one side above it.

5. The automated production line for rotary precast bodies according to claim 1, characterized in that, The fixing frame (5) is also provided with a slide (7) for adjusting the distance between the auxiliary adjustment seat (61) and the support seat (62). The bottom of the auxiliary adjustment seat (61) and the support seat (62) are respectively provided with a boss (71) that matches the slide.

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