A multifunctional prepreg machine and its usage method

Abstract

The present invention discloses a multifunctional prepreg machine and its usage method, belonging to the technical field of carbon fiber prepreg processing equipment. It solves the technical problems in the prior art that the impregnation uniformity and stability of the impregnation device are not high, which affect the product quality and production efficiency, and cause serious environmental pollution. The multifunctional prepreg machine includes a hot melt adhesive device, a bottom platform bracket, and an impregnation roller device arranged thereon. The impregnation roller device includes a horizontally movable impregnation roller device and a vertically movable impregnation roller device. Each group of impregnation roller devices includes a driving impregnation heating roller and a driven impregnation heating roller that are symmetrically and parallelly arranged. One end of the driving impregnation heating roller and the driven impregnation heating roller is controlled by a synchronous gear set to move synchronously relative to each other; on the front and rear sides of the driving impregnation heating roller and the driven impregnation heating roller of the horizontally movable impregnation roller device, baffle plates are respectively connected and arranged, and the upper space between the two heating rollers is enclosed into an impregnation pool by the baffle plates on the front and rear sides; a set of melting devices is arranged above the impregnation pool.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon fiber prepreg processing equipment, and specifically relates to a multifunctional impregnator and its usage method. Background Art

[0002] After the carbon fiber is surface-treated, it needs to be sized. The function is to protect the surface activity generated after the surface treatment of the carbon fiber and enhance the bonding strength between the carbon fiber and the matrix resin. The sizing solution forms a smooth and tough film on the surface of the filaments and fibers, improving wear resistance, preventing the generation of fuzz, and at the same time maintaining the original elasticity. The sizing solution penetrates into the fiber interior and glues some fibers, which can increase the holding force. Currently, the production of thermosetting resin matrix carbon fiber prepregs at home and abroad mainly adopts two processes: solution impregnation method and hot melt method. The advantages of the solution impregnation method are that the reinforcing material is easily impregnated by the resin matrix; thin prepregs can be manufactured, and thick prepregs can also be manufactured; the equipment cost is relatively low. The disadvantages are that a drying furnace is required to remove the solvent or perform solvent recovery. Improper treatment may cause combustion or environmental pollution; the prepreg often retains a certain amount of solvent, and voids are easily formed during molding, affecting the properties of the composite material. The advantages of the hot melt impregnation method are that the process line speed is high, the efficiency is high; the resin content is easy to control; there is no solvent, the volatile content of the prepreg is low, and the process is safe; a drying furnace is not required, reducing environmental pollution; the film forming and impregnation processes can be carried out step by step, reducing the loss of materials, especially expensive reinforcing materials; and the appearance quality of the prepreg by this process is also better. The disadvantages are that it is difficult to impregnate thick prepregs, especially fabrics, and it is difficult to impregnate high-viscosity resins. The consumption of release paper and PE film is relatively large, and currently only single-sided impregnation can be achieved, which cannot meet the actual needs. These two process methods have their own advantages and disadvantages, but the overall production efficiency is relatively low.

[0003] In the entire field of impregnators, the sizing device is a key component. At the same time, the sizing uniformity and stability of the existing sizing devices are not high, affecting product quality and production efficiency, and the two solution impregnation methods cannot be reasonably and effectively utilized. There is an urgent need for a sizing device that can improve sizing quality and production efficiency. Summary of the Invention

[0004] Aiming at the shortcomings and deficiencies existing in the prior art, the present invention provides a multifunctional impregnator and its usage method with a clever structural design. It can adjust the impregnation route according to different impregnating materials and impregnating thicknesses, select the solution impregnation method and the hot melt method, so as to meet different technical requirements, with precise control, time-saving and labor-saving, convenient adjustment and switching, and significantly improve the impregnation efficiency.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: The multifunctional prepreg machine provided by the present invention includes a hot melt adhesive device, a bottom platform bracket, and an impregnating roller device disposed thereon. The impregnating roller device includes a laterally moving impregnating roller device and a longitudinally moving impregnating roller device. The laterally moving impregnating roller device is disposed on the bottom platform bracket in front of the longitudinally moving impregnating roller device.

[0006] Both the laterally moving impregnating roller device and the longitudinally moving impregnating roller device include a driving impregnating heating roller and a driven impregnating heating roller that are symmetrically and parallelly arranged. One end of the driving impregnating heating roller and the driven impregnating heating roller is controlled to move synchronously relative to each other through a synchronous gear set; the other end of the driving impregnating heating roller is connected to the transmission shaft of the first servo motor through an angle changer.

[0007] On the front and rear sides of the first driving impregnating heating roller and the first driven impregnating heating roller of the laterally moving impregnating roller device, baffle plates are respectively connected and arranged. The upper space between the first driving impregnating heating roller and the first driven impregnating heating roller is enclosed by the baffle plates on the front and rear sides to form an impregnating pool.

[0008] Above the impregnating pool, and symmetrically above the first driving impregnating heating roller and the first driven impregnating heating roller, first hot melt adhesive devices are respectively provided.

[0009] The first hot melt adhesive device matching the laterally moving impregnating roller device is two groups of heating panels. The two groups of heating panels are symmetrically arranged and inclined downward into the impregnating pool; an upper frame is connected to the upper part of the bottom platform bracket. The bottom of the heating panel is supported on the upper frame through a connecting base and a group of longitudinal support rods in combination; heating covers are installed at the bottom of the heating panels for heating the colloid inside the heating panels.

[0010] A heating filter sieve plate matching it is installed at the glue outlet at the bottom of the heating panel; an inclination angle adjusting device is also connected to the outer end of the heating panel.

[0011] Preferably, the baffle plate can be adjustably installed on the longitudinal support rod combination through a baffle plate mounting seat and an adjusting device; the adjusting device includes a positioning nut and a vertical lead screw. The side wall of the positioning nut is fixedly connected to the baffle plate mounting seat. After the vertical lead screw passes through the positioning nut, its bottom is connected to the light hole of the baffle plate; a horizontally arranged limit chute plate is connected to the upper part of the baffle plate mounting seat, and the upper part of the vertical lead screw is installed in the limit groove of the limit chute plate.

[0012] A cushion strip is provided at the bottom of the baffle plate, and the cushion strip is made of polytetrafluoro material; the upper surfaces of the first driving impregnating heating roller and the first driven impregnating heating roller are made of smooth steel material.

[0013] Preferably, both ends of the first driven dipping and heating roller are fixed to the bottom platform bracket through the first roller mounting seat, and both ends of the first driving dipping and heating roller are horizontally movably mounted on the bottom platform bracket through the second roller mounting seat. A slider is provided at the bottom of the second roller mounting seat, and a slide rail matching the slider at the bottom of the second roller mounting seat is provided on the bottom platform bracket;

[0014] A lead screw support seat is provided on the bottom platform bracket on the side away from the first driven dipping and heating roller. A horizontal lead screw and a second servo motor connected to the second roller mounting seat are connected to the lead screw support seat. The transmission shaft of the second servo motor controls the forward and reverse rotation of the horizontal lead screw through a corner converter, thereby controlling the horizontal distance between the first driving dipping and heating roller and the first driven dipping and heating roller.

[0015] Preferably, a longitudinal support frame matching the longitudinally movable dipping roller device is further provided on the bottom platform bracket. The longitudinally movable dipping roller device includes: a second driving dipping and heating roller, a second driven dipping and heating roller, and a third servo motor. Both ends of the second driven dipping and heating roller are fixed to the bottom of the longitudinal support frame through the third roller mounting seat, and the second driving dipping and heating roller is vertically movably mounted on the longitudinal support frame through the fourth roller mounting seat;

[0016] Sliders are respectively provided on the left and right sides of the fourth roller mounting seat, and slide rails matching the sliders on the left and right sides of the fourth roller mounting seat are provided on the longitudinal support frame;

[0017] A third servo motor is installed at the top of the longitudinal support frame, and the output shaft of the third servo motor is connected to the longitudinal lead screw on the fourth roller mounting seat;

[0018] A height support adjustment device is further connected between the third roller mounting seat and the fourth roller mounting seat. The height support adjustment device includes a matching upper inclined block and lower inclined block. The lower inclined block is installed on the upper side of the third roller mounting seat through a horizontal clearance screw and a mounting seat. The upper inclined block is fixed to the bottom surface of the fourth roller mounting seat. The fifth drive motor drives the horizontal clearance screw to rotate forward and backward, driving the lower inclined block to move horizontally, controlling the horizontal position between the upper inclined block and the lower inclined block, and finally controlling the total height position between the upper inclined block and the lower inclined block.

[0019] Preferably, a dipping and heating tank communicating with each other is provided on the bottom platform bracket at the bottom of the horizontally movable dipping roller device and the longitudinally movable dipping roller device, and the bottom plate of the dipping and heating tank is inclined from the bottom of the horizontally movable dipping roller device to the bottom of the longitudinally movable dipping roller device. The bottom plate of the dipping and heating tank at the bottom of the longitudinally movable dipping roller device is of a flat plate structure;

[0020] Dipping tank guide rollers are respectively provided at intervals on the bottom plate of the dipping and heating tank.

[0021] Preferably, a single set of heating panels matching the longitudinally movable dipping roller device is also provided on the bottom platform bracket at the upper edge of the dipping heating tank. The heating panels are supported by adjustable support frames and are inclined downward into the dipping heating tank.

[0022] Preferably, the synchronous gear set includes a pinion B and a pinion C that are meshed and connected up and down. The pinion B and the pinion C are limited and hinged through a first connecting plate.

[0023] A large gear D is connected to the end of the active dipping heating roller, and a large gear A is connected to the end of the driven dipping heating roller. The large gear D and the large gear A have the same gear size, and the pinion B and the pinion C have the same size. The pinion B meshes with both the large gear D and the pinion C at the same time, and the pinion C meshes with both the pinion B and the large gear A at the same time. The large gear A, the pinion B, and the large gear D are all axially limited fixing parts. The rotating shaft of the pinion C is installed in the arc-shaped sliding groove hole on the first rubber roller mounting seat, and it can be slidably connected in the arc-shaped sliding groove hole.

[0024] Preferably, the upper frame is a quadrangular prism frame. A first guide roller matching the feeding material is connected to the side of the upper frame. The first guide roller is arranged parallel to the first active dipping heating roller and is in the same horizontal plane as the top of the first active dipping heating roller.

[0025] Three groups of parallel second guide rollers, third guide rollers, and fifth guide rollers are respectively connected to the bottom surface of the top frame of the upper frame. The center lines of the first active dipping heating roller and the first driven dipping heating roller are arranged parallel to the third guide roller.

[0026] The first guide roller and the second guide roller are respectively arranged on the left and right sides of the left vertical frame of the same-side upper frame vertical frame.

[0027] A fourth guide roller is also provided at the bottom right of the upper frame of the bottom platform bracket. The fourth guide roller is arranged at the bottom right of the first driven dipping heating roller.

[0028] A sixth guide roller and a seventh guide roller are respectively connected to the left and right sides of the longitudinal support frame.

[0029] For the usage method of the above-mentioned multifunctional pre-impregnator, when the feeding material enters horizontally and fits on the upper part of the first active dipping heating roller of the pre-impregnator, passes vertically between the first active dipping heating roller and the first driven dipping heating roller, exits horizontally from the bottom of the first driven dipping heating roller, and finally exits horizontally through the gap between the second active dipping heating roller and the second driven dipping heating roller, single-sided dipping of the feeding material is achieved.

[0030] When the feed material passes through the second guide roller and the third guide roller located on the bottom surface of the top frame of the upper frame, it passes through the first active dipping and heating roller and the first driven dipping and heating roller vertically from the center of the first active dipping and heating roller and the first driven dipping and heating roller, and then comes out in the horizontal direction, so as to realize the double-sided dipping of the feed material;

[0031] When the feed material passes through the second guide roller and the third guide roller located on the bottom surface of the top frame of the upper frame, it passes through the first active dipping and heating roller and the first driven dipping and heating roller vertically from the center of the first active dipping and heating roller and the first driven dipping and heating roller, and then passes through the fourth guide roller below, and finally passes through the sixth guide roller to discharge the cloth horizontally between the second active dipping and heating roller and the second driven dipping and heating roller, thereby reducing the wrap angle when discharging the cloth, achieving the effect of double-sided dipping and reducing the contact area;

[0032] After the feed material passes through the second guide roller, the third guide roller and the fifth guide roller located on the bottom surface of the top frame of the upper frame, it vertically moves downward into the dipping heating tank below, passes through the dipping guide roller, and enters the dipping heating tank for dipping; then it passes through the guide roller and vertically moves upward into the right side of the second driven dipping heating roller of the longitudinally moving dipping roller device, and from the right side of the second driven dipping heating roller, it enters between the second driven dipping heating roller and the second active dipping heating roller for extrusion, and finally is guided out from the upper surface of the second active dipping heating roller to achieve traditional dipping.

[0033] The present invention provides a multifunctional prepreg machine and a method for using the same. The invention has the following beneficial effects:

[0034] (1) The multifunctional prepreg machine and the method for using the same of the present invention have an ingenious structural design. The dipping route can be adjusted according to different dipping materials and dipping thicknesses, and the solution dipping method and the hot melt method can be selected to meet different technical requirements. The machine can be precisely controlled, save time and effort, and is easy to adjust and switch, thereby significantly improving the dipping efficiency.

[0035] (2) The multifunctional prepreg machine and the method of using the same of the present invention realize the synchronous relative movement between the first active dipping and heating roller and the first driven dipping and heating roller, so that a gap can be generated between the two pressing rollers, and the feed cloth can be accurately controlled to pass through the dipping pool between the first active dipping and heating roller and the first driven dipping and heating roller, and the type and thickness of the hot melt adhesive required on the feed cloth can be accurately controlled. The prepreg tape squeezed out by the two heating rollers does not need to be squeezed out for the second time to remove the excess hot melt adhesive, and the overall precise control of the prepreg dipping can be realized without causing waste of resources and environmental pollution due to the excess hot melt adhesive, thereby meeting the actual dipping needs and having a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the present invention;

[0037] Figure 2is Figure 1 Schematic structural diagram of the front view of the dipping roller device moving horizontally in

[0038] Figure 3 is Figure 2 Schematic structural diagram of the rear view of the dipping roller device moving horizontally in

[0039] Figure 4 is Figure 2 Schematic structural diagram of the heating panel and the rubber blocking plate in

[0040] Figure 5 is Figure 1 Schematic structural diagram of the three - dimensional view of

[0041] Figure 6 is Figure 4 Schematic structural diagram of the partial enlarged view of A in

[0042] Figure 7 Schematic diagram of the horizontal feeding and horizontal discharging mode using the dipping roller device moving horizontally in the present invention;

[0043] Figure 8 Schematic diagram of the vertical feeding and horizontal discharging mode using the dipping roller device moving horizontally in the present invention;

[0044] Figure 9 Schematic diagram of the vertical feeding, downward - inclined and then horizontal discharging mode using the dipping roller device moving horizontally in the present invention;

[0045] Figure 10 Schematic diagram of the traditional dipping mode using the dipping roller device moving longitudinally in the present invention;

[0046] Figure 11 is Figure 1 Schematic structural diagram of the partial enlarged view of B in

[0047] Figure 12 is Figure 1 Schematic structural diagram of the rear view of

[0048] In the figure: 1. Bottom platform bracket, 2. First active dipping and heating roller, 3. First driven dipping and heating roller, 4. Rubber baffle, 5. Second servo motor, 6. Pinion B, 7. Pinion C, 8. Large gear D, 9. Large gear A, 10. First rubber roller mounting seat, 11. Arc-shaped chute hole, 12. Heating panel, 13. Heating and filtering sieve plate, 14. Upper frame, 15. Rubber baffle mounting seat, 16. Longitudinal support rod combination, 17. Locknut, 18. Vertical lead screw, 19. Limit chute plate, 20. Tilt angle adjustment device, 21. Second rubber roller mounting seat, 22. Slide block, 23. Slide rail, 24. First guide roller, 25. Second guide roller, 26. Third guide roller, 27. Fourth guide roller, 28. Transverse lead screw, 29. Second active dipping and heating roller, 30. Second driven dipping and heating roller, 31. Longitudinal support frame, 32. Third servo motor, 33. Third rubber roller mounting seat, 34. Fourth rubber roller mounting seat, 35. Upper inclined block, 36. Lower inclined block, 37. Transverse clearance screw, 38. Dipping and heating tank, 39. Fifth guide roller. Detailed implementation mode

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0050] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] Please refer to Figure 1-12 , the present invention provides a technical solution:

[0052] The multifunctional pre-impregnator provided by the present invention includes a hot melt adhesive device, a bottom platform bracket 1 and a dipping roller device provided thereon. The dipping roller device includes a horizontally moving dipping roller device and a vertically moving dipping roller device. The horizontally moving dipping roller device is provided on the bottom platform bracket 1 in front of the vertically moving dipping roller device. The horizontally moving dipping roller device and the vertically moving dipping roller device respectively include symmetrically and parallelly arranged active dipping and heating rollers and driven dipping and heating rollers. One end of the active dipping and heating roller and the driven dipping and heating roller is controlled to move synchronously relative to each other through a synchronous gear set; the other end of the active dipping and heating roller is connected to the transmission shaft of the first servo motor through a rotary angle device.

[0053] On the front and back sides of the first active dipping and heating roller 2 and the first driven dipping and heating roller 3 of the horizontally moving dipping roller device, rubber retaining plates 4 are respectively connected and provided. The upper space between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3 is surrounded by the rubber retaining plates 4 on the front and back sides to form a dipping pool; above the dipping pool, and symmetrically above the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, a first melting device is respectively provided. With this structural design, the synchronous relative movement between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3 can be realized, a gap can be generated between the two pressing rollers, and precise control can be achieved. After the feeding cloth effectively passes through the dipping pool between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, the types and thicknesses of the hot melt adhesives required on the feeding cloth can be precisely controlled. For the pre-impregnated tape extruded by the two heating rollers, there is no need to squeeze out the excessive hot melt adhesive again. The precise control of the dipping of the impregnating machine is overall realized, and resource waste and environmental pollution will not be caused by excessive hot melt adhesives, meeting the actual dipping requirements, and having a wide applicable range.

[0054] On the bottom platform support 1 at the bottom of the horizontally moving dipping roller device and the vertically moving dipping roller device, there is a dipping heating tank 38 that is interconnected, and the bottom plate of the dipping heating tank 38 is inclined from the bottom of the horizontally moving dipping roller device to the bottom of the vertically moving dipping roller device. The bottom plate of the dipping heating tank at the bottom of the vertically moving dipping roller device is a flat plate structure; with this structure, it can effectively catch the dripping glue situation between the rubber rollers of the horizontally moving dipping roller device, and flow the surplus glue into the dipping heating tank 38 at the bottom of the vertically moving dipping roller device to achieve secondary utilization, significantly reducing production costs. Dipping tank guide rollers are respectively arranged at intervals on the bottom plate of the dipping heating tank, which is beneficial to improving the dipping effect of the material in the dipping heating tank 38, meeting the actual dipping thickness requirements, especially suitable for materials that are not easy to dip. On the left and right sides of the longitudinal support frame 31, a sixth guide roller and a seventh guide roller are respectively connected and provided to further meet the usage requirements of various materials, and adjust the dipping route according to different dipping materials and dipping thicknesses.

[0055] On the bottom platform support at the upper edge of the dipping heating tank 38, there is also a single-group heating panel 12 that matches the vertically moving dipping roller device. The heating panel 12 is supported by an adjustable support frame and is inclined downward into the dipping heating tank 38, which can realize the precise control of the amount of melted glue in the dipping heating tank 38, meet the actual needs, and cause no excessive waste.

[0056] The multi-functional prepreg machine provided by the present invention, the synchronous gear set includes a pinion B6 and a pinion C7 which are meshed and connected up and down, and the pinion B6 and the pinion C7 are limited and hinged through a first connecting plate. The end of the first active dipping and heating roller 2 is connected with a large gear D8, and the end of the first driven dipping and heating roller 3 is connected with a large gear A9. The large gear D8 and the large gear A9 have the same gear size, and the pinion B6 and the pinion C7 have the same size. The pinion B6 is meshed with both the large gear D8 and the pinion C7 at the same time, and the pinion C7 is meshed with both the pinion B6 and the large gear A9 at the same time; the large gear A9, the pinion B6 and the large gear D8 are all axially limited fixing parts, and the rotating shaft of the pinion C7 is installed in the arc-shaped chute hole 11 on the first rubber roller mounting seat 10, and it can be slidably connected in the arc-shaped chute hole 11. During the use process, first, when the transmission shaft of the first servo motor rotates to drive the first active dipping and heating roller 2 to rotate forward, it further drives the large gear D8 to rotate inward and forward. The large gear D8 drives the pinion B6 to rotate reversely, the pinion B6 drives the pinion C7 to rotate forward, and the rotation of the pinion C7 drives the large gear A9 to rotate reversely, realizing the synchronous relative rotation of the large gear D8 and the large gear A9: Among them, in the transverse moving dipping roller device, finally, the glue liquid in the dipping pool between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3 effectively coats the feeding cloth passing through the middle of the two, and by controlling the gap between the two rollers, the dipping thickness of the feeding cloth can be controlled, realizing effective, accurate and precise control; in the longitudinal moving dipping roller device, finally, the vertical height position between the second active dipping and heating roller 29 and the second driven dipping and heating roller 30 is adjusted to extrude the dipping material, and the extrusion glue amount is also accurately and effectively controlled.

[0057] The first melting device matched with the transverse moving dipping roller device is two groups of heating panels 12. The two groups of heating panels 12 are symmetrically arranged and inclined downward into the dipping pool; heating covers are installed at the bottoms of the heating panels 12 for heating the colloid inside the heating panels 12. Two kinds of glue or one kind of glue that need to be mixed can be heated and melted respectively, and then flow out from the glue outlet at the bottom of the heating panel 12 and enter the dipping pool for effective mixing. Through one-step dipping, extrusion and cloth discharging in real time, the operation is convenient, time-saving and labor-saving, significantly reducing the usage amount of hot melt glue, and accurately controlling according to the actual required colloid thickness. A heating filter sieve plate 13 matched with it is installed at the glue outlet at the bottom of the heating panel 12 to further control the quality of the liquid outflow of the hot melt glue, prevent the situation of foreign objects or unmolten particles flowing out, and ensure the continuous and effective progress of the dipping process.

[0058] The upper part of the bottom platform bracket 1 is connected with an upper frame 14, and the bottom of the heating panel 12 is supported on the upper frame 14 through a connection base and a set of longitudinal support rod assemblies 16. The glue baffle 4 is adjustably installed on the longitudinal support rod assembly 16 through a glue baffle mounting seat 15 and an adjusting device; the adjusting device includes a positioning nut 17 and a vertical lead screw 18. The side wall of the positioning nut 17 is fixedly connected with the glue baffle mounting seat 15. After the vertical lead screw 18 passes through the positioning nut 17, its bottom is connected with the light hole of the glue baffle 4, which can realize the rotational limit of the lead screw 18 and the glue baffle 4 and a rotatable connection. The upper part of the glue baffle mounting seat 15 is connected with a horizontally arranged limit chute plate 19, and the upper part of the vertical lead screw 18 is installed in the limit groove of the limit chute plate 19 to realize the rotational limit of the distance between it and the glue baffle mounting seat 15, so that the vertical lead screw 18 can only drive the glue baffle 4 to rotate with it and adjust the vertical height position. First, ensure that the relative positions of the front and rear glue baffles 4 are fixed during use to prevent lateral offset, which can effectively control the seamless connection between the bottom of the glue baffle 4 and the first active dipping heating roller 2 and the first driven dipping heating roller 3 and prevent glue overflow; at the same time, it can also be realized that when the relative positions of the first active dipping heating roller 2 and the first driven dipping heating roller 3 change, the seamless connection between the bottom of the glue baffle 4 and the first active dipping heating roller 2 and the first driven dipping heating roller 3 can be effectively controlled in time.

[0059] A cushion strip is provided at the bottom of the glue baffle 4, and the cushion strip is made of polytetrafluoro material; the upper surfaces of the first active dipping heating roller 2 and the first driven dipping heating roller 3 are made of smooth steel material. The two are used in combination, which can further realize the seamless connection between the bottom of the glue baffle 4 and the first active dipping heating roller 2 and the first driven dipping heating roller 3, and has a long service life, ensuring the continuous and effective progress of the dipping process of the entire device.

[0060] The upper part of the glue baffle mounting seat 15 is provided with an adjustable through hole and an adjusting gap plate connected to the longitudinal support rod assembly 16. After the longitudinal support rod passes through the adjustable through hole, threaded holes are provided on the glue baffle mounting seat 15 on both sides of the adjusting gap plate. The vertical lead screw 18 passing through the threaded holes on both sides of the adjusting gap plate is used to lock and loosen the longitudinal support rod, which is convenient for fixed installation and maintenance.

[0061] An inclination angle adjusting device 20 is also connected to the outer end of the heating panel 12. By controlling the connection distance with the longitudinal support rod assembly 16, the fine adjustment of the glue discharging inclination angle and height of the heating panel 12 can be realized, meeting the actual adjustment requirements, and finally realizing the precise micro control of the glue amount in the dipping tank.

[0062] Both ends of the first driven dipping and heating roller 3 are fixed to the bottom platform bracket 1 through the first rubber roller mounting seat 10. Both ends of the first driving dipping and heating roller 2 are horizontally movably mounted on the bottom platform bracket 1 through the second rubber roller mounting seat 21. A slider 22 is provided at the bottom of the second rubber roller mounting seat 21, and a slide rail 23 matching the slider 22 at the bottom of the second rubber roller mounting seat 21 is provided on the bottom platform bracket 1. A horizontal lead screw 28 support seat is provided on the bottom platform bracket 1 on the side away from the first driven dipping and heating roller 3. A horizontal lead screw 28 connected to the second rubber roller mounting seat 21 and a second servo motor 5 are connected to the horizontal lead screw 28 support seat. The transmission shaft of the second servo motor 5 controls the forward and reverse rotation of the horizontal lead screw 28 through an angle converter, thereby controlling the horizontal distance between the first driving dipping and heating roller 2 and the first driven dipping and heating roller 3, and finally realizing the precise and micro control of the glue amount and dipping thickness in the dipping tank, meeting different usage requirements, and having a wide applicable range.

[0063] The upper frame 14 is a quadrangular prism frame. A first guide roller 24 matching the feeding is connected to the side of the upper frame 14. The first guide roller 24 is arranged in parallel with the first driving dipping and heating roller 2, and is in the same horizontal plane as the top of the first driving dipping and heating roller 2. Two groups of parallel second guide rollers 25, third guide rollers 26 and fifth guide rollers 39 are respectively connected to the bottom surface of the top frame of the upper frame 14. The center lines of the first driving dipping and heating roller 2 and the first driven dipping and heating roller 3 are arranged in parallel with the third guide roller 26; the first guide roller 24 and the second guide roller 25 are respectively arranged on the left and right sides of the left vertical frame of the same side of the upper frame 14. A fourth guide roller 27 is also provided at the bottom on the right side of the upper frame 14 of the bottom platform bracket 1, and the fourth guide roller 27 is arranged on the right side of the first driven dipping and heating roller 3. The guide rollers control the feeding position, feeding angle and the relative position relationship between the feeding and the hot melt adhesive device, realizing the precise and effective control of parameters such as dipping amount, dipping thickness, dipping type, etc., and having a wide applicable range.

[0064] A longitudinal support frame 31 matching the longitudinally movable dipping roller device is also provided on the bottom platform bracket 1. The longitudinally movable dipping roller device includes: a second driving dipping and heating roller 29, a second driven dipping and heating roller 30 and a third servo motor 32. Both ends of the second driven dipping and heating roller 30 are fixed to the bottom of the longitudinal support frame 31 through the third rubber roller mounting seat 33. The second driving dipping and heating roller 29 is vertically movably mounted on the longitudinal support frame 31 through the fourth rubber roller mounting seat 34; sliders are respectively provided on the left and right sides of the fourth rubber roller mounting seat 34, and slide rails matching the sliders on the left and right sides of the fourth rubber roller mounting seat 34 are provided on the longitudinal support frame 31; a third servo motor 32 is installed on the top of the longitudinal support frame 31, and the output shaft of the third servo motor 32 is connected to the longitudinal lead screw on the fourth rubber roller mounting seat 34.

[0065] A height support adjustment device is also connected between the third rubber roller mounting seat 33 and the fourth rubber roller mounting seat 34. The height support adjustment device includes a matching upper inclined block 35 and a lower inclined block 36. The lower inclined block 36 is mounted on the upper side of the third rubber roller mounting seat 33 through a lateral clearance screw 37 and a mounting seat. The upper inclined block 35 is fixed to the bottom surface of the fourth rubber roller mounting seat 34. By driving the lateral clearance screw 37 to rotate forward and backward by a fifth drive motor, the lower inclined block 36 is driven to move horizontally, controlling the horizontal position between the upper inclined block 35 and the lower inclined block 36, and finally controlling the total height position between the upper inclined block 35 and the lower inclined block 36. Finally, through the third servo motor 32 and the longitudinal lead screw, the up and down position height of the fourth rubber roller mounting seat 34 is adjusted. At the same time, the height support adjustment device is matched to control the stable position between the third rubber roller mounting seat 33 and the fourth rubber roller mounting seat 34. The overall adjustment structure is firm and precise, the operation is convenient, and the safety factor is high, significantly improving the work efficiency. A limit sensor is also provided on the upper surface of the third rubber roller mounting seat 33 for sensing the height position between the second active dipping and heating roller 29 and the second driven dipping and heating roller 30.

[0066] The specific use process of the multifunctional pre-impregnating machine of the present invention includes the following:

[0067] For the multifunctional pre-impregnating machine provided by the present invention, the dipping rollers move horizontally. The gap between the two dipping rollers is adjusted by a servo motor drive to control the amount of hot melt adhesive entering the dipping pool 4 of the horizontally moving dipping roller device. Finally, through the gap between the two rollers and the amount of hot melt adhesive in the dipping pool 4, precise thickness dipping of the incoming material is achieved. At the same time, there is also a traditional longitudinally moving dipping roller device with a clever structural design layout to meet various dipping use requirements.

[0068] As Figure 7 shown, when the incoming material enters horizontally and fits against the upper part of the first active dipping and heating roller 2 of the pre-impregnating machine, passes vertically between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, exits the cloth horizontally from the bottom of the first driven dipping and heating roller 3, and finally exits the cloth horizontally through the gap between the second active dipping and heating roller 29 and the second driven dipping and heating roller 30, single-sided dipping of the incoming material is achieved.

[0069] As Figure 8 shown, when the incoming material passes through the second guide roller 25 and the third guide roller 26 located on the bottom surface of the top frame of the upper frame 14, passes vertically through the centers of the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, and then exits the cloth horizontally, double-sided dipping of the incoming material is achieved.

[0070] As Figure 9As shown in the figure, when the feeding material passes through the second guide roller 25 and the third guide roller 26 located on the bottom surface of the top frame of the upper frame 14, vertically passes through the center of the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, then passes through the lower fourth guide roller 27, and finally passes through the sixth guide roller and exits horizontally between the second active dipping and heating roller 29 and the second driven dipping and heating roller 30, the wrap angle during cloth exiting is reduced, achieving the effect of double-sided dipping and reducing the contact area.

[0071] As Figure 10 As shown in the figure, when the feeding material passes through the second guide roller 25, the third guide roller 26 and the fifth guide roller 39 located on the bottom surface of the top frame of the upper frame 14 and then vertically enters the dipping and heating tank 38 below it, passes through the dipping guide roller, and enters the dipping and heating tank 38 for dipping; then it vertically enters through the guide roller to the right side of the second driven dipping and heating roller 30 of the longitudinally moving dipping roller device, starts entering from the right side of the second driven dipping and heating roller 30 and is squeezed between the second driven dipping and heating roller 30 and the second active dipping and heating roller 29, and finally is led out from the upper surface of the second active dipping and heating roller 29, realizing traditional dipping.

[0072] In summary, the multi-functional prepreg machine of the present invention has a clever structural design. According to different dipping materials and dipping thicknesses, the dipping route is adjusted to meet different technical requirements. With precise control, after the feeding cloth passes through the dipping pool between the first active dipping and heating roller 2 and the first driven dipping and heating roller 3, the type and thickness of the hot melt adhesive required on the feeding cloth are precisely controlled. The prepreg tape extruded by the two heating rollers does not need to be squeezed again to remove excessive hot melt adhesive. Overall, precise control of the dipping of the prepreg machine is achieved, and resource waste and environmental pollution caused by excessive hot melt adhesive are avoided, meeting the actual dipping needs and having a wide applicable range.

[0073] The above are only examples of the present invention. For example, the positions of the guide rails on the upper frame 14 or the bottom platform support 1 can be set and installed according to actual needs, and the multi-functional prepreg machine of the present invention can be realized.

[0074] The above description is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A multifunctional prepreg machine, characterized in that: The invention comprises a hot melt adhesive device, a bottom platform support (1) and a dipping roller device arranged thereon, wherein the dipping roller device comprises a transversely movable dipping roller device and a longitudinally movable dipping roller device, and the transversely movable dipping roller device is arranged on the bottom platform support (1) in front of the longitudinally movable dipping roller device. The transversely movable dipping roller device and the longitudinally movable dipping roller device both comprise an active dipping heating roller and a driven dipping heating roller that are symmetrically and parallelly arranged, and one end of the active dipping heating roller and the driven dipping heating roller are controlled to move synchronously relative to each other through a synchronous gear set; the other end of the active dipping heating roller is connected to the transmission shaft of the first servo motor through a goniometer; The first active glue dipping and heating roller (2) and the first driven glue dipping and heating roller (3) of the transversely movable glue dipping and heating roller device are respectively connected to glue baffle plates (4) on the front and rear sides, and the upper space between the first active glue dipping and heating roller (2) and the first driven glue dipping and heating roller (3) is enclosed by the glue baffle plates (4) on the front and rear sides to form a glue dipping pool; a screw support seat is provided on the bottom platform bracket (1) away from the first driven glue dipping and heating roller (3); a transverse screw (28) connected to the second glue roller mounting seat (21) and a second servo motor (5) are connected to the screw support seat; the transmission shaft of the second servo motor (5) controls the forward and reverse rotation of the transverse screw (28) through an angle meter, thereby controlling the transverse distance between the first active glue dipping and heating roller (2) and the first driven glue dipping and heating roller (3); A first glue melting device is provided above the glue dipping pool and above the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3); The first glue melting device matched with the transversely movable glue dipping roller device is two groups of heating panels (12), the two groups of heating panels (12) are symmetrical and arranged to be inclined downward in the glue dipping pool; an upper frame (14) is connected to the upper part of the bottom platform bracket (1), and the bottom of the heating panel (12) is supported on the upper frame (14) by connecting a base and a group of longitudinal support rods (16); a heating cover is installed at the bottom of each heating panel (12) for heating the glue inside the heating panel (12); A heating filter screen plate (13) matching the heating panel (12) is installed at the glue outlet at the bottom of the heating panel (12); an inclination angle adjustment device (20) is also connected to the outer end of the heating panel (12); The rubber baffle plate (4) is adjustably mounted on the longitudinal support rod assembly (16) via a rubber baffle plate mounting seat (15) and an adjustment device; A bottom platform bracket (1) located at the bottom of the transversely movable dipping roller device and the longitudinally movable dipping roller device is provided with interconnected dipping heating grooves (38), and the bottom plate of the dipping heating groove (38) is inclined from the bottom of the transversely movable dipping roller device to the bottom of the longitudinally movable dipping roller device, and the bottom plate of the dipping heating groove (38) at the bottom of the longitudinally movable dipping roller device is a flat plate structure.

2. A multifunctional prepreg machine according to claim 1, characterized in that: The adjusting device comprises a positioning nut (17) and a vertical lead screw (18); the side wall of the positioning nut (17) is fixedly connected to the rubber baffle plate mounting seat (15); after the vertical lead screw (18) passes through the positioning nut (17), its bottom is connected to the light hole of the rubber baffle plate (4); the upper part of the rubber baffle plate mounting seat (15) is connected to a horizontally arranged limiting slide plate (19), and the upper part of the vertical lead screw (18) is installed in the limiting groove of the limiting slide plate (19); A pad is provided at the bottom of the glue baffle (4), and the pad is made of polytetrafluoroethylene; the upper surfaces of the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3) are made of smooth steel.

3. A multifunctional prepreg machine according to claim 1, characterized in that: The two ends of the first driven glue dipping and heating roller (3) are fixed to the bottom platform bracket (1) via a first glue roller mounting seat (10), and the two ends of the first active glue dipping and heating roller (2) are mounted on the bottom platform bracket (1) via a second glue roller mounting seat (21) so as to be laterally movable, a slider (22) being provided at the bottom of the second glue roller mounting seat (21), and a slide rail (23) matching the slider (22) at the bottom of the second glue roller mounting seat (21) being provided on the bottom platform bracket (1).

4. A multifunctional prepreg machine according to claim 1, characterized in that: The bottom platform bracket (1) is also provided with a longitudinal support frame (31) matching the longitudinal movable dipping roller device, the longitudinal movable dipping roller device comprising: a second active dipping and heating roller (29), a second driven dipping and heating roller (30) and a third servo motor (32), the two ends of the second driven dipping and heating roller (30) being fixed to the bottom of the longitudinal support frame (31) via a third rubber roller mounting seat (33), and the second active dipping and heating roller (29) being mounted on the longitudinal support frame (31) in a manner movable up and down via a fourth rubber roller mounting seat (34); Slide blocks (22) are respectively provided on the left and right sides of the fourth rubber roller mounting seat (34), and slide rails (23) matching the slide blocks (22) on the left and right sides of the fourth rubber roller mounting seat (34) are provided on the longitudinal support frame (31); A third servo motor (32) is installed on the top of the longitudinal support frame (31), and an output shaft of the third servo motor (32) is connected to a longitudinal lead screw on the fourth rubber roller mounting seat (34); A height support adjustment device is also connected between the third rubber roller mounting seat (33) and the fourth rubber roller mounting seat (34), and the height support adjustment device comprises an upper inclined block (35) and a lower inclined block (36) that match each other. The lower inclined block (36) is mounted on the upper side of the third rubber roller mounting seat (33) through a transverse gap screw rod (37) and a mounting seat. The upper inclined block (35) is fixed to the bottom surface of the fourth rubber roller mounting seat (34). The transverse gap screw rod (37) is driven by a fifth transmission motor to rotate forward and reversely, thereby driving the lower inclined block (36) to move laterally, thereby controlling the horizontal position between the upper inclined block (35) and the lower inclined block (36), and finally controlling the total height position between the upper inclined block (35) and the lower inclined block (36).

5. A multifunctional prepreg machine according to claim 4, characterized in that: Glue dipping tank guide rollers are arranged at intervals on the bottom plate of the glue dipping heating tank (38).

6. A multifunctional prepreg machine according to claim 5, characterized in that: A single set of heating panels (12) matching the longitudinally movable glue dipping roller device is also provided on the bottom platform support (1) located at the upper edge of the glue dipping heating tank (38); the heating panels (12) are supported by an adjustable support frame and are tilted downwardly into the glue dipping heating tank (38).

7. The multifunctional prepreg machine according to claim 1, characterized in that: The synchronous gear set comprises a pinion gear B (6) and a pinion gear C (7) meshingly connected up and down, wherein the pinion gear B (6) and the pinion gear C (7) are limitedly hinged via a first connecting plate; The end of the active glue dipping and heating roller is connected to a large gear D (8), and the end of the driven glue dipping and heating roller is connected to a large gear A (9). The large gear D (8) and the large gear A (9) have the same gear size, and the small gear B (6) and the small gear C (7) have the same size. The small gear B (6) is meshed with the large gear D (8) and the small gear C (7) at the same time, and the small gear C (7) is meshed with the small gear B (6) and the large gear A (9) at the same time. The large gear A (9), the small gear B (6) and the large gear D (8) are all axial limit fixing parts. The rotating shaft of the small gear C (7) is installed in the arc-shaped slide groove hole (11) on the first glue roller mounting seat (10), and it can be slidably connected in the arc-shaped slide groove hole (11).

8. The multifunctional prepreg machine according to claim 1, characterized in that: The upper frame (14) is a quadrangular prism frame, and a first guide roller (24) matching the feed material is connected to the side of the upper frame (14), and the first guide roller (24) is arranged in parallel with the first active dipping and heating roller (2), and is in the same horizontal plane as the top of the first active dipping and heating roller (2); The bottom surface of the top frame of the upper frame (14) is respectively connected to three groups of second guide rollers (25), third guide rollers (26) and fifth guide rollers (39) which are arranged in parallel, and the center lines of the first active dipping and heating roller (2) and the first driven dipping and heating roller (3) are arranged in parallel with the third guide roller (26); The first guide roller (24) and the second guide roller (25) are respectively arranged on the left side and the right side of the left vertical frame of the upper frame (14); A fourth guide roller (27) is also provided at the bottom right side of the upper frame (14) of the bottom platform bracket (1), and the fourth guide roller (27) is provided at the bottom right side of the first driven dipping and heating roller (3); A sixth guide roller and a seventh guide roller are respectively connected to the left and right sides of the longitudinal support frame (31).

9. A method for using a multifunctional prepreg machine according to any one of claims 1 to 8, characterized in that: When the feed material enters horizontally from the upper part of the first active dipping and heating roller (2) of the prepreg machine, passes vertically between the first active dipping and heating roller (2) and the first driven dipping and heating roller (3), exits horizontally from the bottom of the first driven dipping and heating roller (3), and finally exits horizontally from the gap between the second active dipping and heating roller (29) and the second driven dipping and heating roller (30), the feed material is dipped on one side; When the feed material passes through the second guide roller (25) and the third guide roller (26) located on the bottom surface of the top frame of the upper frame (14), it passes through the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3) vertically from the center of the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3), and then comes out in the horizontal direction, so as to realize the double-sided glue dipping of the feed material; When the feed material passes through the second guide roller (25) and the third guide roller (26) located on the bottom surface of the top frame of the upper frame (14), it passes through the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3) vertically from the center of the first active glue dipping heating roller (2) and the first driven glue dipping heating roller (3), then passes through the fourth guide roller (27) below, and finally passes through the sixth guide roller to be discharged horizontally from between the second active glue dipping heating roller (29) and the second driven glue dipping heating roller (30), thereby reducing the wrap angle when the cloth is discharged, achieving the effect of double-sided glue dipping and reducing the contact area; After the feed material passes through the second guide roller (25), the third guide roller (26) and the fifth guide roller (39) located on the bottom surface of the top frame of the upper frame (14), it vertically moves downward into the dipping and heating tank (38) below, passes through the dipping guide roller, and enters the dipping and heating tank (38) for dipping; then it passes through the guide roller and vertically moves upward into the right side of the second driven dipping and heating roller (30) of the longitudinally movable dipping roller device, and from the right side of the second driven dipping and heating roller (30), it enters between the second driven dipping and heating roller (30) and the second active dipping and heating roller (29) for extrusion, and finally is guided out from the upper surface of the second active dipping and heating roller (29) to achieve traditional dipping.

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