Continuous thermoplastic one-way multi-layer composite sheet conveying equipment and method

Abstract

The invention belongs to the technical field of composite sheet production, and particularly relates to continuous thermoplastic one-way multi-layer composite sheet conveying equipment and method.The continuous thermoplastic one-way multi-layer composite sheet conveying equipment comprises a base, two pressure shaping set rollers, a filling and distributing device and two pressure composite set rollers; the two pressure shaping group rollers, the filling cloth device and the two pressure composite group rollers are fixedly mounted above the base, and the two pressure shaping group rollers are positioned on the front sides of the two pressure composite group rollers; the filling and distributing device is positioned on the rear sides of the two pressure composite group rollers; the two pressure setting group rollers are oppositely arranged, the bottoms of the two pressure setting group rollers are in bearing connection with sliding blocks, sliding rails are slidably connected to the lower portions of the sliding blocks, and the sliding rails are fixedly installed on the ground. And the integrating degree between materials is poor.

Description

Technical Field

[0001] The invention belongs to the technical field of composite sheet production, and in particular relates to a continuous thermoplastic unidirectional multi-layer composite sheet conveying device and method. Background Art

[0002] Continuous fiber reinforced thermoplastic composite prepreg tapes have made great progress in recent years due to their excellent mechanical properties such as high tensile strength, flexural strength and modulus, excellent high and low temperature impact resistance, low density and recyclability. The corresponding manufacturing technology has also made significant breakthroughs.

[0003] In the existing unidirectional multi-layer composite sheet remolding process, the sheet is extruded and composited through the roller assembly, and is extruded and molded by the roller assembly. However, after the roller assembly has been used for a period of time, the distance between the two rollers will loosen, or the pressure on the sheet will be insufficient, resulting in poor molding quality. Summary of the invention

[0004] The object of the present invention is to provide a continuous thermoplastic unidirectional multi-layer composite sheet conveying device and method to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a continuous thermoplastic unidirectional multi-layer composite sheet conveying equipment and method, including a conveyor, the conveyor including a base, two pressure-forming roller groups, a filling and distributing device and two pressure-compounding roller groups, the two pressure-forming roller groups, the filling and distributing device and the two pressure-compounding roller groups are all fixedly installed above the base, and the two pressure-forming roller groups are located at the front side of the two pressure-compounding roller groups; the filling and distributing device is located at the rear side of the two pressure-compounding roller groups; the pressure-forming roller groups are provided with two and are arranged opposite to each other, the bottoms of the two pressure-forming roller groups are both bearing-connected with sliders, the bottom of the sliders are slidably connected with slide rails, and the slide rails are fixedly installed on the base.

[0006] Preferably, one side of the two pressure setting roller groups is provided with an extrusion mechanism, and the extrusion mechanism includes an extrusion chamber, an extrusion rod, an arc block, and two groups of rollers; an extrusion part is provided inside the extrusion chamber, and the extrusion chamber is fixedly installed above the base, the extrusion rod is connected to the extrusion part, the arc block is fixedly installed on the inner end of the extrusion rod, and the two groups of rollers are respectively bearing-mounted on the front and rear ends of the arc block.

[0007] Preferably, the production steps of the continuous thermoplastic unidirectional multi-layer composite sheet are as follows: step S1, the base layer and the surface layer of the sheet are combined inside the filling cloth device, and the filling cloth device arranges an intermediate layer between the base layer and the surface layer; step S2, after the base layer, the surface layer and the intermediate layer are combined, they are extruded by a pressure composite roller group, and then pressed and formed for the second time by a pressure shaping roller group; step S3, the composite sheet after the final pressing and forming is cut, and the blanks are collected to complete the production.

[0008] Preferably, the extrusion part includes an air pressure chamber, an air pressure plate, a connecting rod, a motor and a gear; the air pressure plate is slidably connected to the inner wall of the air pressure chamber, the air pressure plate is connected to the extrusion rod through the connecting rod, a plurality of gear blocks are arranged under the connecting rod, and are meshed with the gears, and the air pressure chamber is fixedly mounted on the inner wall of the extrusion chamber.

[0009] Preferably, a gear rod is meshed below the gear, a slide plate is fixedly mounted on the outer end of the gear rod, and an air cavity is fixedly mounted on the inner wall of the extrusion cavity.

[0010] Preferably, the slide plate is slidably connected to the inner wall of the air cavity, the interior of the connecting rod is hollow and penetrated at both ends, a through hole is provided in the middle of the air pressure plate and is aligned with the through hole of the connecting rod, a sliding rod is slidably connected to the inner wall of the connecting rod, the sliding rod is fixedly connected to the extrusion rod, and the outer end of the sliding rod is connected to the outer inner wall spring of the air pressure cavity.

[0011] Preferably, an air inlet pipe and an air outlet pipe are connected between the outer side of the air cavity and the outer side of the air pressure cavity, and a pressure valve is arranged in the air inlet pipe, and a control valve is arranged in the air outlet pipe.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention improves the forming quality of the composite sheet by vigorously extruding the materials composed of the base layer, the surface layer and the middle layer, and the extrusion force can be adjusted by adjusting the torque of the motor. Composite sheets of different thicknesses require different extrusion forces, and the adjustment is convenient and efficient. It can cope with composite sheets of different models and thicknesses, and has a wider range of applications. It does not require the use of multiple devices, and can relatively save costs. At the same time, the motor rotates alternately in the forward and reverse directions, which not only ensures that the extrusion of the composite sheet improves the forming quality, but also avoids the inability of the composite sheet to be transmitted through the two pressure-setting rollers due to long-term and strong extrusion, thereby ensuring smooth transmission during the production process.

[0013] At the same time, the extrusion rod drives two groups of rollers through the arc block to impact the pressure shaping roller group, thereby further enhancing the forming quality of the composite sheet; the motor reciprocates alternately in the forward and reverse directions, so that each time the two pressure shaping roller groups extrude the composite sheet, they can perform a strong impact, thereby making the base layer, surface layer and middle layer more compatible, increasing the forming strength and further improving the forming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 The structure of the conveying device in the present invention;

[0016] Figure 2 It is a schematic diagram of the extrusion mechanism of the present invention;

[0017] Figure 3 It is a schematic diagram of the internal structure of the extrusion chamber of the present invention;

[0018] Figure 4 It is a plane schematic diagram of the extrusion cavity of the present invention;

[0019] Figure 5 It is a schematic diagram of the internal structure of the connecting rod of the present invention;

[0020] The numbers are as follows: base 100; filling material device 500; pressure compound roller group 600; pressure shaping roller group 700; slider 1; slide rail 2; extrusion chamber 3; extrusion rod 31; arc block 32; roller 33; air pressure chamber 34; air pressure plate 341; connecting rod 342; motor 343; gear 344; gear rod 345; slide plate 346; slide rod 347; air chamber 35. DETAILED DESCRIPTION

[0021] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The present invention provides a technical solution: comprising a conveyor, the conveyor comprising a base 100, two pressure-setting roller groups 700, a filling and distributing device 500 and two pressure-compounding roller groups 600, the two pressure-setting roller groups 700, the filling and distributing device 500 and the two pressure-compounding roller groups 600 are all fixedly installed above the base 100, and the two pressure-setting roller groups 700 are located at the front side of the two pressure-compounding roller groups 600;

[0023] The filling material device 500 is located at the rear side of the two pressure compound rollers 600;

[0024] There are two pressure shaping rollers 700 arranged opposite to each other. The bottoms of the two pressure shaping rollers 700 are both bearing-connected with sliders 1 , and the bottoms of the sliders 1 are slidably connected with slide rails 2 , which are fixedly mounted on the base 100 .

[0025] One side of the two pressure shaping rollers 700 is provided with an extrusion mechanism, which includes an extrusion chamber 3, an extrusion rod 31, an arc block 32, and two sets of rollers 33;

[0026] An extrusion part is provided inside the extrusion chamber 3, and the extrusion chamber 3 is fixedly installed above the base 100, the extrusion rod 31 is connected to the extrusion part, the arc block 32 is fixedly installed on the inner end of the extrusion rod 31, and two sets of rollers 33 are respectively installed on the front and rear ends of the arc block 32 with bearings.

[0027] The production steps for continuous thermoplastic unidirectional multilayer composite sheet production are as follows:

[0028] Step S1, the base layer and the surface layer of the sheet material are combined inside the filling distribution device 500, and the filling distribution device 500 arranges an intermediate layer between the base layer and the surface layer;

[0029] Step S2: After the base layer, the surface layer and the middle layer are combined, they are extruded by a pressure compounding roller group 600, and then pressed and formed for a second time by a pressure shaping roller group 700;

[0030] Step S3, cutting the composite sheet after the final pressing and forming, and collecting the blanks to complete the production.

[0031] The extrusion part includes an air pressure chamber 34, an air pressure plate 341, a connecting rod 342, a motor 343 and a gear 344;

[0032] The air pressure plate 341 is slidably connected to the inner wall of the air pressure chamber 34. The air pressure plate 341 is connected to the extrusion rod 31 through a connecting rod 342. A plurality of gear blocks are provided below the connecting rod 341 and mesh with the gear 344. The air pressure chamber 34 is fixedly mounted on the inner wall of the extrusion chamber 3.

[0033] When the base layer, the surface layer and the middle layer are pressed and formed by the pressure composite roller group 600 and the pressure shaping roller group 700, the motor 343 runs, driving the gear 344 to rotate, and the gear 344 drives the connecting rod 342 to move by meshing with the tooth block, and the connecting rod 342 drives the air pressure plate 341 to slide along the inner wall of the air pressure chamber 34, and the connecting rod 342 drives the two groups of rollers 33 to move through the extrusion rod 31 until the two groups of rollers 33 contact the surface of the pressure shaping roller group 700 and squeeze each other, and the pressure shaping roller group 700 is forced to slide inward along the slide rail 2 through the slider 1, and the two pressure shaping roller groups 700 approach each other and vigorously squeeze the materials composed of the base layer, the surface layer and the middle layer, so as to improve the molding quality of the composite sheet, and the extrusion force can be adjusted by adjusting the torque of the motor 343, and the composite sheets of different thicknesses require different extrusion forces, which is convenient and efficient to adjust, can cope with composite sheets of different models and thicknesses, has a wider range of applications, does not need to use multiple devices, and can relatively save costs;

[0034] At the same time, the motor 343 rotates alternately in the forward and reverse directions, which not only ensures that the extruded composite sheet improves the molding quality, but also avoids long-term and strong extrusion that causes the composite sheet to be unable to be transmitted through the two pressure shaping rollers 700, thereby ensuring smooth transmission during the production process.

[0035] A gear rod 345 is meshed below the gear 344 , a slide plate 346 is fixedly mounted on the outer end of the gear rod 345 , and an air cavity 35 is fixedly mounted on the inner wall of the extrusion cavity 3 .

[0036] The slide plate 346 is slidably connected to the inner wall of the air cavity 35. The interior of the connecting rod 342 is hollow and penetrated at both ends. A through hole is provided in the middle of the air pressure plate 341 and is aligned with the through hole of the connecting rod 342. The inner wall of the connecting rod 342 is slidably connected to a slide rod 347. The slide rod 347 is fixedly connected to the extrusion rod 31, and the outer end of the slide rod 347 is connected to the outer inner wall spring of the air pressure cavity 34.

[0037] An air inlet pipe and an air outlet pipe are connected between the outer side of the air cavity 35 and the outer side of the air pressure cavity 34 , and a pressure valve is arranged in the air inlet pipe, and a control valve is arranged in the air outlet pipe.

[0038] Through the above steps, the gear 344 rotates and drives the gear rod 345 to move through meshing, and the gear rod 345 drives the slide plate 346 to slide along the inner wall of the air cavity 35, and the gas on the outside of the slide plate 346 is squeezed. When the gear rod 345 and the connecting rod 341 are moved to the limit distance, the extrusion force of the two pressure shaping rollers 700 on the composite sheet is maximized. At this time, the pressure valve reaches the pressure bearing limit and opens, and the gas on the outside of the slide plate 346 quickly enters the air pressure cavity 34 through the pipeline, and the gas enters the inside of the connecting rod 341 through the through hole of the air pressure plate 341. The air pressure impacts the slide bar 347, and the spring is deformed by force. Then the control valve opens to release the air pressure into the air cavity 35, so that the extrusion rod 31 drives the two groups of rollers 33 to impact the pressure shaping rollers 700 through the arc block 32, thereby further enhancing the forming quality of the composite sheet.

[0039] The motor 343 reciprocates alternately in clockwise and counterclockwise directions, so that each time the two pressure shaping rollers 700 extrude the composite sheet, a strong impact can be exerted, thereby making the base layer, the surface layer and the middle layer more compatible, increasing the molding strength and further improving the molding quality.

[0040] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuous thermoplastic unidirectional multi-layer composite sheet conveying device, comprising a conveyor, characterized in that: The conveyor comprises a base (100), two pressure-setting roller groups (700), a filling and distributing device (500) and two pressure-compound roller groups (600); the two pressure-setting roller groups (700), the filling and distributing device (500) and the two pressure-compound roller groups (600) are all fixedly installed above the base (100), and the two pressure-setting roller groups (700) are located in front of the two pressure-compound roller groups (600); The filling material distribution device (500) is located at the rear side of the two pressure compound rollers (600); Two pressure shaping rollers (700) are provided and arranged opposite to each other. The bottoms of the two pressure shaping rollers (700) are both bearing-connected with sliders (1). The bottoms of the sliders (1) are slidably connected with slide rails (2), and the slide rails (2) are fixedly mounted on the base (100).

2. The continuous thermoplastic unidirectional multi-layer composite sheet conveying device according to claim 1, characterized in that: One side of the two pressure shaping roller groups (700) is provided with an extrusion mechanism, the extrusion mechanism comprising an extrusion chamber (3), an extrusion rod (31), an arc block (32), and two groups of rollers (33); An extrusion portion is provided inside the extrusion chamber (3), and the extrusion chamber (3) is fixedly mounted above the base (100), the extrusion rod (31) is connected to the extrusion portion, the arc block (32) is fixedly mounted on the inner end of the extrusion rod (31), and the two groups of rollers (33) are respectively mounted on the front and rear ends of the arc block (32) by bearings.

3. A method for producing a continuous thermoplastic unidirectional multi-layer composite sheet, according to the continuous thermoplastic unidirectional multi-layer composite sheet conveying device as claimed in claim 2, characterized in that: The production steps of the continuous thermoplastic unidirectional multi-layer composite sheet are as follows: Step S1, the base layer and the surface layer of the sheet material are combined inside the filling material distribution device (500), and the filling material distribution device (500) arranges an intermediate layer between the base layer and the surface layer; Step S2: after the base layer, the surface layer and the middle layer are combined, they are extruded by a pressure compound roller group (600), and then pressed and formed for a second time by a pressure shaping roller group (700); Step S3, cutting the composite sheet after the final pressing and forming, and collecting the blanks to complete the production.

4. The continuous thermoplastic unidirectional multi-layer composite sheet conveying device according to claim 2, characterized in that: The extrusion part comprises an air pressure chamber (34), an air pressure plate (341), a connecting rod (342), a motor (343) and a gear (344); The air pressure plate (341) is slidably connected to the inner wall of the air pressure chamber (34). The air pressure plate (341) is connected to the extrusion rod (31) via a connecting rod (342). A plurality of tooth blocks are provided below the connecting rod (341) and mesh with the gear (344). The air pressure chamber (34) is fixedly mounted on the inner wall of the extrusion chamber (3).

5. The continuous thermoplastic unidirectional multi-layer composite sheet conveying device according to claim 4, characterized in that: A gear rod (345) is meshed below the gear (344), a slide plate (346) is fixedly mounted on the outer end of the gear rod (345), and an air cavity (35) is fixedly mounted on the inner wall of the extrusion cavity (3).

6. The continuous thermoplastic unidirectional multi-layer composite sheet conveying device according to claim 5, characterized in that: The slide plate (346) is slidably connected to the inner wall of the air cavity (35); the interior of the connecting rod (342) is hollow and penetrated at both ends; a through hole is provided in the middle of the air pressure plate (341) and is aligned with the through hole of the connecting rod (342); a slide rod (347) is slidably connected to the inner wall of the connecting rod (342); the slide rod (347) is fixedly connected to the extrusion rod (31); and the outer end of the slide rod (347) is connected to the outer inner wall spring of the air pressure cavity (34).

7. The continuous thermoplastic unidirectional multi-layer composite sheet conveying device according to claim 6, characterized in that: An air inlet pipe and an air outlet pipe are connected between the outer side of the air cavity (35) and the outer side of the air pressure cavity (34), and a pressure valve is arranged in the air inlet pipe, and a control valve is arranged in the air outlet pipe.

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