Roll forming mechanism of composite reinforcing belt, equipment for vertical roll forming of reinforcing belt and reinforcing belt production line

Abstract

The utility model relates to the field of production equipment of pipeline reinforcing belts, and discloses a rolling forming mechanism of a composite reinforcing belt, equipment for vertical rolling forming of the reinforcing belt and a reinforcing belt production line, the rolling forming mechanism comprises a rolling composite roller set, the rolling composite roller set comprises a rolling gap limited between rollers (671) arranged in pairs, and the rolling gap is arranged between the rollers (671). A stockpile guide module (80) is arranged upstream of the rolling gap, and the stockpile guide module is arranged to be capable of acting on the edges of the two sides of a molten plastic sheet (200) extruded on the two sides of the multiple rows of reinforcing wires (100) running side by side, and the edges of the two sides of the molten plastic sheet form a stockpile area (81) at the position about to enter the rolling gap. The rolling forming mechanism can effectively improve the rolling fusion effect of the edges of the two sides of the reinforcing belt, the risk that due to insufficient pressure or cooling shrinkage, molten plastic on the edges of the two sides cannot completely wrap the reinforcing wire is reduced, and the high product quality and the high yield are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production equipment of pipeline reinforcing belt, concretely relates to a kind of roll forming mechanism of composite reinforcing belt.On this basis, the utility model further relates to a kind of equipment of vertical roll forming reinforcing belt comprising the roll forming mechanism and reinforcing belt production line. BACKGROUND

[0002] In order to improve the mechanical properties of the conveying pipeline, it is usually necessary to use a winding machine to wind reinforcing materials such as steel cord, steel fiber tape, and fiber tape onto a plastic core pipe to form a composite pipeline. In order to ensure good reinforcing effect and composite effect with the plastic core pipe, the reinforcing belt used for the production of such composite pipelines usually includes multiple reinforcing filaments (such as steel cord, steel fiber, and steel wire) and plastic coated thereon, and is formed into a flat belt shape to be heat-combined onto the outer peripheral surface of the plastic core pipe by spiral winding.

[0003] The quality of the reinforcing belt has an important influence on the performance of the composite pipeline using it. In the traditional technology, the reinforcing belt can be manufactured by a reinforcing belt production line having a belt-making die, wherein the belt-making die can be provided with a vacuum cavity and a composite cavity, and the reinforcing filaments run through the vacuum cavity and the composite cavity in sequence after being separated and heated, and then are combined with molten plastic in the composite cavity to form the reinforcing belt. By making the reinforcing filaments run through the vacuum cavity, air bubble defects in the manufactured reinforcing belt can be effectively avoided, and the bonding density of the reinforcing filaments and the plastic in the reinforcing belt is enhanced. However, since the reinforcing filaments need to pass through the core die small hole of the belt-making die to enter the vacuum cavity and the composite cavity, such belt-making die and production process have problems such as easy wear of the anticorrosive layer on the surface of the reinforcing filaments and the core die small hole, and difficulty in ensuring the product quality and production efficiency of the reinforcing belt.

[0004] To this end, Chinese invention patent application CN118744515A discloses a vertical roll forming reinforcing belt device and reinforcing belt production line. As shown in Figures 1 to 3 the reinforcing belt production line includes a yarn feeding, a separating system, a vertical roll forming device 106, a cooling and shaping device of reinforcing belt 300, a traction, cutting and winding device, etc. Specifically, the yarn feeding system can be provided as a spool 101 capable of unwinding multiple reinforcing filaments 100 such as steel cord, steel fiber, steel wire, etc. For this purpose, the spool 101 can have multiple filament spindles 101a wound with reinforcing filaments 100 respectively, so as to be able to release multiple reinforcing filaments 100 (single filaments). When the reinforcing filaments 100 on the filament spindles 101a are used up, new filament spindles 101a can be replaced, or the filament spindles 101a with different reinforcing filaments 100 can be replaced as a whole according to production needs.

[0005] The uncoiled reinforcing filaments 100 need to be combed to be regularly arranged in a predetermined manner, so that they can pass through the yarn collector 102, the lead-in compression roller 103, the flattening roller 104, and the separating comb 105, etc. Among them, the yarn collector 102 can concentrate the multiple reinforcing filaments 100 (single filaments) uncoiled from the reel 101 into a bundle, and then the separating comb 105 separates the reinforcing filaments 100 into multiple columns arranged side by side, so as to be subsequently compounded with the extruded molten plastic sheet 200 through the vertical roller compression molding equipment 106 and formed into a reinforcing belt 300. In order to arrange the reinforcing filaments 100 in the same plane at a predetermined interval, the front and rear of the separating comb 105 are respectively provided with flattening rollers 104 to support the reinforcing filaments 100, and the height position of the reinforcing filaments 100 when passing through the separating comb 105 is constrained by the lead-in compression roller 103 and the first deflection roller 61a.

[0006] Then, the reinforcing filaments 100 can be heated and treated, and integrated with the extruded molten plastic sheet 200 in the vertical roller compression molding equipment 106 to form a reinforcing belt 300. The reinforcing belt 300 rolled and molded by the vertical roller compression molding equipment 106 has a high temperature, and thus needs to be further cooled and shaped.

[0007] Therefore, the reinforcing belt 300 output by the vertical roller compression molding equipment 106 can pass through the compression roller device 107 to run in the horizontal direction, and then pass through the cooling device such as the water cooling tank 108 to completely cool and shape the reinforcing belt 300. Then, the reinforcing belt 300 is pulled by the traction machine 110 to continue to run backward, and the downstream of the water cooling tank 108 can be provided with multiple air knife drying devices 109, etc. for blowing dry the moisture on the surface of the reinforcing belt 300. Finally, the reinforcing belt 300 can be wound into a roll by the winding machine 112, and according to the winding specification, the reinforcing belt cutting device 111 can be used to cut the reinforcing belt 300 in time.

[0008] The reinforcing belt production line adopts the vertical roller compression molding equipment 106 (i.e. the vertical roller compression molding reinforcing belt equipment) to realize a roller compression molding process different from the above-mentioned traditional technology, such as Figure 3As shown, the vertical roll forming equipment 106 includes a sheet extrusion system 70 and at least one set of roll forming roller groups (a first set of roll forming roller groups 67a, a second set of roll forming roller groups 67b and a third set of roll forming roller groups 67c), wherein the sheet extrusion system 70 has an extrusion die 703 and can extrude molten plastic sheets 200 on both sides of the multiple rows of reinforcing filaments 100 running side by side; the roll forming roller groups include rollers 671 arranged in pairs below the extrusion die 703 and spaced apart from each other, so that the sheet extrusion system 70 extrudes molten plastic sheets 200 above the roll forming roller groups. The molten plastic sheets 200 and the reinforcing filaments 100 therebetween enter between the rollers 671 arranged in pairs, so that one side of the molten plastic sheets 200 away from each other can be roll formed by the rollers 671, so that the molten plastic sheets 200 extruded on both sides are bonded together, and the multiple rows of reinforcing filaments 100 running side by side are fixed therebetween to form a reinforcing tape 300.

[0009] However, in the above roll forming process, due to the presence of the reinforcing filaments 100, the molten plastic sheets 200 after roll forming by the roll forming roller groups can be better fused together in the part where the reinforcing filaments 100 are located, but the roll forming fusion effect of the edge parts on both sides without the reinforcing filaments 100 is not satisfactory, and under the action of cooling and shrinkage, the molten plastic cannot even completely wrap the reinforcing filaments 100 in the edge parts on both sides (as shown in Figure 18 The product quality of the reinforcing tape 300 obtained cannot meet the needs, and the yield is low. Utility model content

[0010] The utility model aims at overcoming the problem of low yield of the reinforcing tape in the roll forming process of the prior art, and provides a roll forming mechanism for a composite reinforcing tape, which can effectively improve the roll forming fusion effect of the edge parts on both sides during the roll forming process of the reinforcing tape, reduce the risk that the molten plastic cannot completely wrap the reinforcing filaments in the edge parts on both sides, and effectively ensure the product quality and yield of the reinforcing tape obtained.

[0011] In order to achieve the above-mentioned purpose, the utility model provides a roll forming mechanism for a composite reinforcing tape, which comprises a roll forming roller group, the roll forming roller group comprises rollers arranged in pairs and spaced apart from each other, and a roll forming gap is defined between the rollers arranged in pairs, so that the molten plastic sheets extruded on both sides of the multiple rows of reinforcing filaments running side by side can be bonded with the reinforcing filaments to form a reinforcing tape by roll forming, a stacking guide module is arranged upstream of the roll forming gap, and the stacking guide module is arranged to act on the edge parts on both sides of the molten plastic sheets and form a stacking area at the position where the edge parts on both sides of the molten plastic sheets enter the roll forming gap.

[0012] Preferably, the material piling guide module comprises a pair of baffle blocks arranged oppositely at two ends of the rolling gap in the axial direction parallel to the rollers, and the distance between the baffle blocks is less than the initial width of the extruded molten plastic sheet.

[0013] Preferably, the baffle blocks extend at least partially into the space between the pair of rollers to be adjacent to the rolling gap.

[0014] Preferably, the distance between the baffle blocks decreases in the direction towards the rolling gap, and / or the baffle blocks are formed with a material guiding groove extending in the running direction on the side opposite to each other, and the width of the material guiding groove decreases in the direction towards the rolling gap.

[0015] Preferably, a side pressing module is arranged downstream of the rolling gap for pressing the two side edges of the reinforcing belt.

[0016] Preferably, the side pressing module comprises a first side pressing wheel and a second side pressing wheel arranged in pairs on both sides of the thickness direction of the reinforcing belt downstream of the rolling composite roller group and corresponding to the two side edges of the reinforcing belt respectively, so as to press the two side edges of the reinforcing belt when the reinforcing belt runs through the gap between the first side pressing wheel and the second side pressing wheel.

[0017] Preferably, the side pressing module comprises a side pressing ring arranged at the axial ends of the rollers, the side pressing ring is sleeved on the rollers and the maximum radial dimension is greater than the radial dimension of the rollers.

[0018] Preferably, the side pressing module comprises a first side pressing wheel and a second side pressing wheel arranged in pairs on both sides of the thickness direction of the reinforcing belt downstream of the rolling composite roller group and corresponding to the two side edges of the reinforcing belt respectively, so as to press the two side edges of the reinforcing belt when the reinforcing belt runs through the gap between the first side pressing wheel and the second side pressing wheel.

[0019] The second aspect of the utility model provides a vertical roller forming reinforcing belt equipment, comprising:

[0020] A sheet extrusion system is arranged to be capable of extruding molten plastic sheets on both sides of a plurality of reinforcing filaments running side by side; and,

[0021] The rolling forming mechanism of the composite reinforcing belt, the pair of rollers are arranged horizontally and spaced apart from each other, and the respective roller shafts extend in the horizontal direction, and the reinforcing filaments enter the rolling gap vertically downward.

[0022] The third aspect of the utility model provides a reinforcing belt production line comprising the vertical roller forming reinforcing belt equipment.

[0023] Through the technical scheme, the roll forming mechanism is provided with the material stacking guide module at the upstream of the roll gap, so that the two side edges of the molten plastic sheet can form a material stacking area when the molten plastic sheet is about to enter the roll gap, more plastic material enters the roll gap than other parts, so that the edge part can be sufficiently extruded by the roller when passing through the roll pressing roller group, the roll pressing fusion effect of the two side edges of the reinforcing belt is effectively improved, the risk that the molten plastic of the two side edge parts cannot completely wrap the reinforcing wire due to insufficient pressure or cooling shrinkage is reduced, and the product quality and yield of the prepared reinforcing belt are effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a front view of upstream equipment in a reinforcing belt production line of the prior art, including a wire feeding, wire combing system and vertical roll forming equipment, etc.;

[0025] Figure 2 is a front view of downstream equipment in a reinforcing belt production line of the prior art, including a cooling and shaping device of the reinforcing belt, traction, cutting and winding equipment, etc., the upstream end on the right side of the figure is connected with the downstream end on the left side of Figure 1 ;

[0026] Figure 3 is an enlarged view of a partial S1 in Figure 1 ;

[0027] Figure 4 is a front view of a vertical roll forming reinforcing belt equipment according to a preferred embodiment of the present application;

[0028] Figure 5 is a top view of a roll forming mechanism according to a preferred embodiment of the present application in the vertical roll forming reinforcing belt equipment shown in Figure 4 ;

[0029] Figure 6 is an A-A sectional view (rotated by 90°) of the roll forming mechanism shown in Figure 5 ;

[0030] Figure 7 is a perspective view of a blocking edge block that can be used in the roll forming mechanism shown in Figure 5 ;

[0031] Figure 8 is a perspective view of another blocking edge block that can be used in the roll forming mechanism shown in Figure 5 ;

[0032] Figure 9 is a perspective view of another blocking edge block that can be used in the roll forming mechanism shown in Figure 5 ;

[0033] Figure 10 is Figure 9 is a top view of the blocking block shown in

[0034] Figure 11 is used for Figure 4 is a sectional view of the roll forming mechanism according to another preferred embodiment of the present application in the apparatus for vertical roll forming reinforcing belt shown in

[0035] Figure 12 is Figure 11 is a top view of the edge blocking module in the roll forming mechanism shown in

[0036] Figure 13 is a schematic view of the first edge blocking wheel and the second edge blocking wheel of the edge blocking module when roll forming;

[0037] Figure 14 is a schematic view of the first edge blocking wheel and the second edge blocking wheel of another structure when roll forming;

[0038] Figure 15 is a perspective view of the wiper of the edge blocking module in a preferred embodiment;

[0039] Figure 16 is an installation structure diagram of the edge blocking ring of the edge blocking module on the roll in another preferred embodiment;

[0040] Figure 17 is a cross-sectional view of an ideal reinforcing belt;

[0041] Figure 18 is a cross-sectional view of a reinforcing belt whose two side edges are not well integrated;

[0042] Figure 19 is a cross-sectional view of a reinforcing belt after being processed by the roll forming mechanism of the present application;

[0043] Figure 20 is a cross-sectional view of a reinforcing belt after being processed by the roll forming mechanism of the present application and after the excess edge material of the two side edges of the reinforcing belt is cut off.

[0044] BRIEF DESCRIPTION OF DRAWINGS

[0045] 101- payoff stand; 101a- wire spool; 102- wire collector; 103- entry press roll; 104- leveler roll; 105- wire separator comb; 106- vertical roll forming apparatus; 107- press roll device; 108- water cooling tank; 109- blow drying device; 110- puller; 111- reinforcing belt cutting device; 112- winding machine;

[0046] 60 - frame; 61a, 61b, 61c - deflection rollers; 62 - oven; 63 - filament separating roller; 64 - hot roller; 67a, 67b, 67c - roll compounding roller set; 671 - roller; 68 - gap adjustment mechanism; 69 - air cooling device; 70 - sheet extrusion system; 80 - stacking guide module; 81 - stacking area; 82 - edge block; 82a - material guiding groove; 82b - inclined surface; 82c - arc surface; 82d - vertical surface; 90 - edge pressing module; 91 - first edge pressing wheel; 92 - second edge pressing wheel; 93 - silica gel coating layer; 94 - tapered cross-section gap; 95 - edge pressing ring; 96 - doctor blade;

[0047] 100 - reinforcing filaments; 200 - molten plastic sheet; 300 - reinforcing tape. DETAILED DESCRIPTION

[0048] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0049] In the present application, unless otherwise stated, the orientation words such as "up, down, left, right" generally refer to the up, down, left, right shown in the drawings; "inner, outer" refers to the inner, outer relative to the contour of each component itself. In order to facilitate clear understanding of the present application, the following will be combined with Figures 4 to 20 The parts of the present application that are different from the prior art will be highlighted, but it should be understood that, for example, the parts of the reinforcing tape production line other than the vertical roller compounding forming equipment 106 as shown in Figure 1 and Figure 2 are also applicable to the reinforcing tape production line of the present application, and the description of its composition, arrangement and working process will be omitted below.

[0050] As shown in Figure 4As shown, one aspect of the present application provides a vertical roll forming reinforced tape device (i.e. vertical roll forming device 106) comprising a sheet extrusion system 70 and at least one set of roll composite roller group, wherein the sheet extrusion system 70 has a sheet extrusion die and is arranged to be able to extrude molten plastic sheet 200 on both sides of the side-by-side running multi-column reinforced wire 100; the roll composite roller group comprises rollers 671 arranged in pairs below the sheet extrusion die and spaced from each other, whereby the sheet extrusion system 70 extrudes molten plastic sheet 200 above the roll composite roller group. The molten plastic sheet 200 and the reinforcing wire 100 therebetween are synchronously entered between the rollers 671 arranged in pairs, so that the molten plastic sheet 200 can be rolled by the rollers 671 on the sides away from each other, so that the molten plastic sheet 200 extruded on both sides is bonded together, and the side-by-side running multi-column reinforced wire 100 is fixed therebetween, forming a reinforced tape 300. To this end, the rollers 671 arranged in pairs define a roll gap for receiving the reinforcing wire 100 and the molten plastic sheet 200 extruded on both sides thereof, respectively, and the roll gap should not be less than the design thickness of the reinforced tape 300 required to be produced.

[0051] Wherein the roll gap is arranged to be able to receive the reinforcing wire 100 running from top to bottom, and correspondingly, the extruded molten plastic sheet 200 also runs from top to bottom when passing through the roll gap. Thus, the molten plastic sheet 200 extruded on both sides of the reinforcing wire 100 can have relatively good consistency under the action of gravity, which is beneficial to ensure the product quality of the produced reinforced tape 300.

[0052] The above-mentioned vertical roll forming device 106 of the present application adopts hot pressing composite process when manufacturing reinforced tape, cancels the tape manufacturing die and in-mold composite process used to define the composite cavity in the conventional technology, extrudes molten plastic sheet 200 on both sides of the side-by-side running multi-column reinforced wire 100 by the sheet extrusion system 70, and uses at least one set of roll composite roller group to roll the molten plastic sheet 200 to make it composite and bonded with the reinforcing wire 100, so as to roll form the reinforced tape 300, which has completely different forming process from the conventional technology. Since the reinforcing wire does not need to run through the core die hole and abandons the conventional forming process of in-mold composite, the problem of difficult to ensure product quality and production efficiency existing in the prior art can be avoided.

[0053] In particular, the production process of the conventional technology generally sets the reinforcing filaments to run in the horizontal direction to avoid the reinforcing filaments being bent, which is not conducive to improving the production efficiency and controlling the product quality. The utility model provides a vertical roller forming equipment 106 adopting a brand-new process, and is set to make the reinforcing filaments 100 run from top to bottom at the position of being compounded with the molten plastic sheet 200, and the continuous roller forming of the reinforcing belt is realized by adopting the roller pressing composite roller groups to press the molten plastic sheet 200 on both sides, which can better adapt to the material properties during compounding, easily control the tension of the reinforcing filaments 100 and extrude the molten plastic sheet 200 suitable for compounding, not only significantly reduce the requirements for the compounding process conditions, but also facilitate to ensure the product quality of the reinforcing belt prepared.

[0054] Among them, the rollers 671 arranged in pairs can be arranged horizontally spaced from each other, and the respective roller shafts extend in the horizontal direction, and the reinforcing filaments 100 vertically downward into the roller gap. Thus, the molten plastic sheet 200 on both sides can have good consistency under the action of gravity and be uniformly pressed when passing through the roller gap, ensuring the product quality of the reinforcing belt 300 produced. In other embodiments, the downward running direction of the reinforcing filaments 100 from top to bottom can also have a certain inclination angle relative to the vertical direction, as long as it does not cause the molten plastic sheet 200 extruded to be severely deformed before being substantially shaped.

[0055] The vertical roller forming equipment 106 of the utility model realizes the continuous roller forming of the reinforcing belt by pressing the molten plastic sheet 200 with the roller pressing composite roller groups, which can be provided with one or more roller pressing composite roller groups. In the preferred embodiment shown in the figure, the vertical roller forming equipment 106 has three roller pressing composite roller groups arranged along the running direction of the reinforcing filaments 100, which are the first roller pressing composite roller group 67a at the uppermost position, the second roller pressing composite roller group 67b at the intermediate height position and the third roller pressing composite roller group 67c at the lowermost position. Among them, since the reinforcing filaments 100 run vertically downward at this position, the above-mentioned three roller pressing composite roller groups are arranged along the same vertical line.

[0056] When the reinforcing filaments 100 and the molten plastic sheets 200 extruded on both sides thereof pass through the roll nip of the first set of roll compounding roller groups 67a, the molten plastic sheets 200 are rolled to adhere to each other, at this time, the formed reinforcing belt has a relatively high temperature, which has not yet been formed into a predetermined shape (especially thickness). The preliminary formed reinforcing belt continues to pass through the second set of roll compounding roller groups 67b and the third set of roll compounding roller groups 67c, and can be further precisely formed. Thus, through multiple passes of rolling (and subsequent cooling described below), the reinforcing belt can be gradually formed into a predetermined design thickness, so that the finally formed reinforcing belt 300 has a high product quality. To this end, the roll nip formed by the roll compounding roller groups located above can be set to be equal to or greater than the roll nip formed by the roll compounding roller groups located below, for example, the roll nips of the first set of roll compounding roller groups 67a, the second set of roll compounding roller groups 67b and the third set of roll compounding roller groups 67c can be set to decrease in turn.

[0057] In order to achieve good rolling effect, the rollers 671 in the roll compounding roller groups are preferably arranged to be driven to rotate during the rolling process, so as to roll against the surface of the molten plastic sheets 200. In particular, the rollers 671 of the first set of roll compounding roller groups 67a should be actively rotated, and for this purpose, a servo drive mechanism (such as a servo motor) can be provided which is connected to the rollers 671 in transmission, and the servo motor can drive the rollers 671 to rotate so as to roll against the surface of the molten plastic sheets 200. Through such roll compounding, the inclusion of bubbles in the formed reinforcing belt 300 can be effectively prevented (the gas in the joint part of the reinforcing filaments 100 and the molten plastic sheets 200 is effectively extruded), so that the reinforcing filaments 100 and the molten plastic sheets 200 are compacted and compacted, and good adhesion quality is ensured.

[0058] Further, air cooling devices 69 can also be provided between adjacent roll compounding roller groups, which are arranged on the two sides of the reinforcing belt 300 opposite to the belt surface, and the preliminary rolled and formed reinforcing belt 300 is preliminarily cooled and shaped by blowing cooling air against its surface, and then further rolled by the next set of roll compounding roller groups, so as to realize step-by-step shaping and cooling of the reinforcing belt 300, and finally achieve the process thickness requirement.

[0059] According to process requirements and product specifications, it can be necessary to adjust the roll nip between the rollers 671 in the roll compounding roller groups. To this end, the vertical roll forming equipment 106 of the present application can be provided with a gap adjustment mechanism 68 for adjusting the roll nip. The gap adjustment mechanism 68 can be provided in various forms, as long as it can adjust the spacing between the rollers 671 arranged in pairs. Preferably, the gap adjustment mechanism 68 adopts a threaded screw drive form, and is driven by a servo motor to ensure adjustment accuracy. As an alternative, it can also be provided as a cylinder directly driving the rollers 671, or a hand wheel for manual adjustment.

[0060] The gap adjustment mechanism 68 is connected to one or both rollers 671 in the roller compounding roller set. In one embodiment, the axis of one roller in the roller compounding roller set is fixed, while the axis of the other roller can be adjusted, thus the need to be connected to the gap adjustment mechanism 68 and be able to be driven to approach or move away from the fixed roller. In this way, the fixed roller can determine the reference plane of the compounding position, and only one side roller needs to be adjusted when the roller gap needs to be adjusted, which is simple and easy to control. In another embodiment, the axes of both rollers in the roller compounding roller set can be adjusted to approach or move away from the running path of the reinforcing filaments 100 simultaneously, which can be achieved by using positive and negative threaded screw drives, etc. Thus, when the roller gap is adjusted, there is no need to adjust the running path of the reinforcing filaments 100 at that position.

[0061] Typically, the sheet extrusion system 70 for extruding the molten plastic sheet 200 can include an extruder and a matching extrusion flow channel and sheet extrusion die, the extrusion flow channel being used to deliver the molten plastic to the sheet extrusion die to extrude the desired molten plastic sheet 200 at a predetermined position. In order to facilitate debugging, the sheet extrusion system 70 can be configured to be able to adjust the position of the sheet extrusion die in three dimensions.

[0062] In addition, the die of the extrusion die can be formed with a plurality of forming grooves (not shown) corresponding to the side-by-side running reinforcing filaments 100, such as a grooved die or a slot, which is beneficial to matching the extruded molten plastic sheet 200 with the reinforcing filaments 100, thereby further reducing the risk of gas inclusion.

[0063] Referring to Figure 5 and Figure 6 The utility model provides a roller compounding mechanism of the compounding reinforcing tape which can be used in the above-mentioned vertical roller compounding equipment 106, the roller compounding mechanism includes a roller compounding roller set, such as the above-mentioned first group roller compounding roller set 67a, the upstream of the roller gap of the first group roller compounding roller set 67a is provided with a stacking guide module 80, the stacking guide module 80 is arranged to be able to act on both side edges of the molten plastic sheet 200, and makes both side edges of the molten plastic sheet 200 form a stacking area 81 at the position about to enter the roller gap.

[0064] Thus, by setting the material accumulation guiding module 80 upstream of the rolling gap, the two side edges of the molten plastic sheet 200 can form a material accumulation area 81 when entering the rolling gap, so that more plastic material enters the rolling gap than other parts, so that the edge part can be sufficiently extruded by the roller 671 when passing through the rolling composite roller group, effectively improving the rolling fusion effect of the two side edges of the reinforcing tape, reducing the risk that the molten plastic of the two side edge parts cannot completely wrap the reinforcing filaments due to insufficient pressure or cooling shrinkage, and effectively ensuring the product quality and yield of the prepared reinforcing tape.

[0065] In the rolling forming mechanism of the present application, the material accumulation guiding module 80 can be set in various suitable forms, as long as it can form a material accumulation area 81 at the position of the two side edges of the molten plastic sheet 200 entering the rolling gap. In a preferred embodiment, the material accumulation guiding module 80 includes a baffle block 82 arranged at both ends of the rolling gap in the axial direction parallel to the roller 671, and the distance between the baffle blocks 82 is less than the initial width of the extruded molten plastic sheet 200. Thus, the baffle blocks 82 can act on both sides of the width direction of the molten plastic sheet 200 to form a material accumulation area 81 at the position of entering the rolling gap.

[0066] As shown in Figure 6 , the material accumulation guiding module 80 should be arranged so that the material accumulation area 81 is as close to the rolling gap as possible, so that the material in the material accumulation area 81 enters the rolling gap and is extruded. For this purpose, the baffle block 82 can be arranged to at least partially extend into the space between the pair of rollers 671 to be adjacent to the rolling gap.

[0067] Figures 7 to 10 Three different structural forms of baffle blocks 82 are exemplarily shown. Among them, in order to guide the material to accumulate in the material accumulation area 81 and enter the rolling gap, the baffle blocks 82 can be arranged with decreasing distance in the direction towards the rolling gap. In Figure 7 the baffle block 82 shown, it has a sequentially connected inclined surface 82b, an arc surface 82c and a vertical surface 82d. By arranging the inclined surface 82b, the molten plastic sheet 200 can smoothly enter the space between the baffle blocks 82. Further, by the guidance and extrusion of the arc surface 82c and the vertical surface 82d, the excess plastic material can be accumulated to form a material accumulation area. In Figure 8 the baffle block 82 shown, an arc surface 82c is formed to gradually increase the extrusion effect as the molten plastic sheet 200 enters, avoiding excessive damage to the edges of the molten plastic sheet 200. In Figure 9 and Figure 10In the shown baffle block 82, a material guiding groove 82a extending in the running direction is formed on the side opposite to the other baffle block, and the width dimension of the material guiding groove 82a decreases in the direction toward the roll gap, thereby defining the general position of the material accumulation area 81 and being able to act on the accumulated plastic material in the thickness direction.

[0068] Referring to Figure 11 and Figure 12 As shown, in the roll forming mechanism according to a preferred embodiment of the present application, a side pressing module 90 for pressing the two side edges of the reinforcing tape 300 can be arranged downstream of the roll gap. Thus, the reinforcing tape 300 after being rolled by the roll compound roller set is pressed by the side pressing module 90 at its two side edges downstream of the roll gap, thereby enhancing the fusion effect by applying additional action on the two side edges, reducing the risk that the molten plastic at the two side edges cannot completely wrap the reinforcing filaments inside due to insufficient pressure applied by the rollers 671 or cooling shrinkage, effectively ensuring the product quality and yield of the reinforcing tape. In particular, in the case that the vertical roll forming device 106 has multiple roll compound roller sets, the side pressing module 90 can be arranged downstream of the roll gap of the first roll compound roller set 67a and upstream of the second roll compound roller set 67b, thereby pressing the plastic material when it is still in a hot molten state, ensuring good compounding effect. Even when the molten plastic sheet 200 after being rolled by the first roll compound roller set 67a fails to be well fused at the two side edges of the reinforcing tape, or even fails to completely wrap the reinforcing filaments 100 inside (as shown in Figure 18 , the side pressing module 90 can eliminate such defects by additional pressing, so that the molten plastic at the two side edges is well fused together (as shown in Figure 19 . Furthermore, by cutting off the excess material at the two side edges of the reinforcing tape with a cutter, the reinforcing tape as shown in Figure 20 can be obtained, which has the same or similar structure as the ideal reinforcing tape 300 as shown in Figure 17 .

[0069] The side pressing module 90 can be arranged in various suitable forms. As shown in Figures 12 to 14As shown, in a preferred embodiment, the edge pressing module 90 can include a first edge pressing wheel 91 and a second edge pressing wheel 92 installed downstream of the roll pressing roller set and arranged in pairs on both sides of the thickness direction of the reinforcing tape 300 corresponding to the two side edges of the reinforcing tape 300, so that when the reinforcing tape 300 runs through the gap between the first edge pressing wheel 91 and the second edge pressing wheel 92, the first edge pressing wheel 91 and the second edge pressing wheel 92 roll on the surfaces of the two side edges of the reinforcing tape 300, thereby extruding the two side edges of the reinforcing tape 300. By using the first edge pressing wheel 91 and the second edge pressing wheel 92 downstream of the roll pressing roller set to extrude the two side edges of the reinforcing tape 300, the fusion effect of the molten plastic sheet 200 at this position can be effectively guaranteed, and the reinforcing wire 100 can be prevented from being exposed.

[0070] Further, as shown in Figure 13 and Figure 14 , the outer periphery of the first edge pressing wheel 91 and the second edge pressing wheel 92 tapers in the direction towards the center line of the reinforcing tape 300, so as to define a tapered cross-sectional gap 94 between the first edge pressing wheel 91 and the second edge pressing wheel 92 allowing the two side edges of the reinforcing tape 300 to pass through. Thus, the two side edges of the reinforcing tape 300 can be subjected to gradually increasing extrusion, which facilitates the complete fusion of the molten plastic sheet 200 at the edge position, and the excess width of the edge portion can be cut off afterwards. As shown in Figure 13 , the first edge pressing wheel 91 and the second edge pressing wheel 92 can be made of all-steel material, or as shown in Figure 14 , the outer periphery of the first edge pressing wheel 91 and the second edge pressing wheel 92 can be coated with a silicone coating layer 93, so that the silicone can naturally deform when extruding the two side edges of the reinforcing tape 300, and adaptively make the two molten plastic sheets 200 completely fused, and the excess edge material can be cut off after cooling to make the edges neat.

[0071] In addition, the edge pressing module 90 can be further arranged such that the gap between the first edge pressing wheel 91 and the second edge pressing wheel 92 is adjustable and / or the distance between the two pairs of first edge pressing wheels 91 and second edge pressing wheels 92 corresponding to the two side edges of the reinforcing tape 300 in the width direction of the reinforcing tape 300 is adjustable, so as to adapt to the production needs of reinforcing tapes of different specifications (width, thickness).

[0072] In another preferred embodiment, the edge pressing module 90 can include a scraper 96 arranged in pairs on both sides of the thickness direction of the reinforcing tape 300 corresponding to the two side edges of the reinforcing tape 300, installed downstream of the roll pressing roller set, as shown in Figure 15 , so as to extrude the two side edges of the reinforcing tape 300 when the reinforcing tape 300 runs through the gap between the scrapers 96. Thus, the edge pressing module 90 has a simple structure, avoiding significant increase in equipment cost.

[0073] In another preferred embodiment, the pressing module 90 may include pressing rings 95 mounted on both axial ends of the rollers 671 of the roll forming compound roller assembly, such as... Figure 16 As shown, the pressure ring 95 is sleeved on the roller 671 (e.g., fixed to the roller 671 by screws) and its maximum radial dimension is greater than that of the roller 671. Similar to the aforementioned first pressure roller 91 and second pressure roller 92, the outer circumferential surface of the pressure ring 95 can also be formed into a conical shape. By integrating the pressure module 90 onto the roller 671 of the roll forming compound roller group, the structure of the roll forming mechanism can be kept compact, eliminating the need to add additional space for arranging the pressure module 90 in the vertical roll forming equipment.

[0074] As mentioned above, before the reinforcing filament 100 reaches the roll forming compound roller group, it needs to be split and heated to facilitate bonding with the molten plastic sheet 200 and ensure product quality. Therefore, at least some components for splitting and heating can be integrated into the vertical roll forming equipment 106. Thus, upstream of the first roll forming compound roller group 67a, along the running direction of the reinforcing filament, a filament heating device for heating the reinforcing filament 100 and / or a splitting unit for splitting multiple strands of reinforcing filament 100 into multiple rows running side-by-side at predetermined intervals can be provided. In the illustrated preferred embodiment, the main filament heating device for heating the reinforcing filament 100 is an oven 62 located at the top of the frame 60. Furthermore, a hot roller 64 can be provided downstream to heat / keep the reinforcing filament 100 using hot water circulation or electric heating rods, etc. This hot roller 64 also serves to turn the reinforcing filament 100 downwards. The filament separating unit includes a filament separating roller 63 (a roller with a limiting groove formed on its outer circumferential surface) or other filament separating components (such as a filament separating comb) disposed between the oven 62 and the hot roller 64.

[0075] The various functional components of the vertical roll forming equipment 106 can be mounted on a frame 60, which may also be equipped with guide rollers to change the running height of the reinforcing filament 100 and the resulting reinforcing belt 300. In the preferred embodiment shown in the figure, a first guide roller 61a, a second guide roller 61b, and a third guide roller 61c are mounted on the frame 60. The reinforcing filament 100 is unwound, bundled, and combed into multiple rows at a first height position, then turns upward around the first guide roller 61a, and is raised to a higher second height after passing the second guide roller 61b at the top of the frame 60, thereby facilitating top-down movement and lamination with the molten plastic sheet 200. The laminated reinforcing belt 300 can run around the third guide roller 61c, changing its running direction after exiting the roll forming assembly, returning to a relatively low horizontal running height, facilitating subsequent cooling, shaping, and traction finishing processes.

[0076] The utility model discloses a kind of reinforced tape production lines of equipment including the vertical roll forming reinforced tape above.

[0077] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this. Within the technical concept of the utility model, the technical solution of the utility model can be subjected to various simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners. However, these simple modifications and combinations should also be considered as disclosed content of the utility model, and all belong to the protection scope of the utility model.

Claims

1. A roll forming mechanism of a composite reinforcement tape, comprising a roll compounding roller set (67a, 67b, 67c) including rollers (671) arranged in pairs at intervals from each other, with a roll gap defined between the rollers (671) arranged in pairs to enable a molten plastic sheet (200) extruded on both sides of a plurality of columns of reinforcement filaments (100) running side by side to be bonded integrally with the reinforcement filaments (100) to roll form a reinforcement tape (300), characterized in that, An upstream of the roll pressing gap is provided with a material piling guide module (80) arranged to act on both side edges of the molten plastic sheet (200) and form a material piling area (81) at a position immediately before entering the roll pressing gap.

2. The roll forming mechanism of a composite reinforcement tape according to claim 1, characterized by, The material piling guide module (80) comprises a pair of side edge blocks (82) oppositely arranged at two ends of the roll pressing gap in an axial direction parallel to the rollers (671) and spaced apart from each other, and a spacing between the side edge blocks (82) is less than an initial width of the extruded molten plastic sheet (200).

3. The roll forming mechanism of a composite reinforcement tape according to claim 2, wherein The side edge blocks (82) at least partially extend into a spacing between the pair of rollers (671) to be adjacent to the roll pressing gap.

4. The roll forming mechanism of a composite reinforcement tape according to claim 2, wherein In a direction towards the roll pressing gap, the spacing between the side edge blocks (82) decreases, and / or the side edge blocks (82) are formed with a material guide groove (82a) extending through in a running direction on opposite sides of each other, and a width dimension of the material guide groove (82a) decreases in a direction towards the roll pressing gap.

5. The roll forming mechanism of a composite reinforcement tape according to claim 1, wherein A downstream of the roll pressing gap is provided with a side edge pressing module (90) for pressing both side edges of the reinforcing tape (300).

6. The roll forming mechanism of a composite reinforcement tape according to claim 5, wherein The side edge pressing module (90) comprises a first side edge pressing wheel (91) and a second side edge pressing wheel (92) arranged in pairs on both sides of the thickness direction of the reinforcing tape (300) and corresponding to both side edges of the reinforcing tape (300) respectively and installed downstream of the roll pressing composite roller set (67a, 67b, 67c) to press both side edges of the reinforcing tape (300) when the reinforcing tape (300) runs through a gap between the first side edge pressing wheel (91) and the second side edge pressing wheel (92).

7. The roll forming mechanism of a composite reinforcement tape according to claim 5, wherein The side edge pressing module (90) comprises a side edge ring (95) installed at both axial ends of the rollers (671), which is sleeved on the rollers (671) and has a maximum radial dimension greater than a radial dimension of the rollers (671).

8. The roll forming mechanism of the composite reinforcement tape according to claim 5, wherein, The side edge pressing module (90) comprises a wiper (96) arranged in pairs on both sides of the thickness direction of the reinforcing tape (300) and corresponding to both side edges of the reinforcing tape (300) respectively and installed downstream of the roll pressing composite roller set (67a, 67b, 67c) to press both side edges of the reinforcing tape (300) when the reinforcing tape (300) runs through a gap between the wipers (96).

9. An apparatus for vertical roll-forming of a reinforcing belt, characterised in that, Comprise: A sheet extrusion system (70) arranged to extrude molten plastic sheets (200) on both sides of a plurality of reinforcing filaments (100) running side by side; and The roll pressing forming mechanism of the composite reinforcing tape according to any one of claims 1 to 8, the pair of rollers (671) are arranged horizontally spaced apart from each other, and the respective roller shafts extend in a horizontal direction, and the reinforcing filaments (100) vertically downward enter the roll pressing gap.

10. A reinforced tape production line characterized by, Comprise the vertical roll pressing forming reinforcing tape device according to claim 9. Comprise the vertical roll pressing forming reinforcing tape device according to claim 9.

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