Material belt conveying mechanism

Abstract

The utility model discloses a material belt conveying mechanism which comprises a double-roller conveying unit, and the double-roller conveying unit comprises a conveying seat body, a driving motor and two conveying rollers which are arranged up and down. The conveying rollers are rotationally arranged on the conveying seat body, a first material passing channel for a material belt to pass through is formed between the two conveying rollers, and at least one of the two conveying rollers is a conical roller; the driving motor is fixedly connected to the conveying base and drives the conveying rollers to rotate. According to the utility model, the material belt can be automatically conveyed and guided, the auxiliary material belt laying can be realized, and the material belt can be bent in advance while being conveyed by utilizing the conical roller arranged in the roller conveying unit, so that the accurate realization of the laying operation of the material belt with larger curvature is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tape laying, and particularly relates to a tape conveying mechanism. Background Art

[0002] Carbon fiber materials have many characteristics such as light weight, high strength, and corrosion resistance, and are widely used in many fields. They are also important material choices in the high-end bicycle industry.

[0003] In the process of preparing carbon fiber bicycle rims, the preforming process is an indispensable step. During preforming, it is necessary to unroll and lay a roll of tape, that is, a carbon fiber prepreg tape, into the preforming groove 11' on the preforming die 1' as shown in Figure 1 and compact the tape to make it closely fit the preforming groove 11'. At present, the laying of the tape is mostly completed by manual operation, which has problems such as low laying efficiency and unstable laying quality. Moreover, affected by the shape of the bicycle rim, the laying curvature is large and the laying quality is also poor, which needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tape conveying mechanism to automatically convey the tape and assist in tape laying.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A tape conveying mechanism includes a pair of roller conveying units. The pair of roller conveying units includes a conveying seat body, a driving motor, and two conveying rollers arranged up and down. The conveying rollers are respectively rotatably arranged on the conveying seat body. A first material passing channel for the tape to pass through is formed between the two conveying rollers, and at least one of the two conveying rollers is a conical roller. The driving motor is fixedly connected to the conveying seat body and drives the conveying rollers to rotate.

[0007] Furthermore, a plurality of the pair of roller conveying units are arranged at intervals, and each pair of roller conveying units is arranged along an arc-shaped or spiral tape conveying path.

[0008] Furthermore, it further includes a support plate. The conveying seat bodies in each pair of roller conveying units are respectively rotatably connected to the support plate, and the rotation axis of the conveying seat body is perpendicular to the tape conveying path.

[0009] Further, the conveying seat body includes a main body portion and a hanging portion. The hanging portion is slidably connected to the main body portion. One of the conveying rollers is rotatably arranged on the main body portion, and the other is rotatably mounted on the hanging portion. The pair of roller conveying unit further includes an adjusting driving member, which is fixedly connected to the main body portion and can drive the hanging portion to slide. The driving direction of the adjusting driving member is perpendicular to the rotation axis of the conveying roller mounted on the hanging portion.

[0010] Further, a plurality of annular feeding grooves are formed on the outer wall of the conveying roller. The feeding grooves are arranged at intervals along the rotation axis of the conveying roller. The two conveying rollers are in rolling contact with each other, and the positions of the feeding grooves on the two conveying rollers are staggered with each other. The feeding grooves on any one of the conveying rollers and the outer wall of the other conveying roller enclose the first material passing channel.

[0011] Further, the pair of roller conveying unit further includes a baffle plate, which is detachably connected to the side of the conveying seat body, and the position of the baffle plate corresponds to the position of the conveying roller. A plurality of limiting comb teeth are formed by extending the side of the baffle plate in the direction of the material belt conveying direction. The limiting comb teeth are arranged one by one in the feeding grooves.

[0012] Further, an installation through hole is formed on the conveying seat body, and a strip-shaped through hole is formed on the baffle plate. A fastening member is inserted through the installation through hole and the strip-shaped through hole, and the fastening member locks and fixes the conveying seat body and the baffle plate to each other.

[0013] Further, it further includes a plurality of material supporting platforms. The pair of roller conveying units and the material supporting platforms are arranged alternately. Two limiting bosses are arranged at intervals on the top of the material supporting platform. A second material passing channel for the material belt to pass through is formed between the limiting bosses. The position of the first material passing channel corresponds to the position of the second material passing channel.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model is provided with a pair of roller conveying unit, which can automatically convey and guide the material belt, assist in laying the material belt. By using the conical rollers provided in the pair of roller conveying unit, the material belt can be pre-bent while conveying the material belt, which is beneficial to accurately realizing the laying operation of the material belt with a large curvature.

[0016] 2. The conveying rollers in the pair of roller conveying unit are provided with feeding grooves, which can accommodate, guide and convey each material belt, and limit the material belt to prevent the material belts from overlapping each other. And each pair of roller conveying units are arranged along a circular arc or spiral material belt conveying path, which can smoothly connect the circular arc and annular material belt laying paths, and is especially suitable for application scenarios with a large laying curvature such as the pre-forming of bicycle rims. Description of the Drawings

[0017] Figure 1 This is a schematic structural diagram of the preform die of the present utility model.

[0018] Figure 2 This is a schematic structural diagram of the present utility model.

[0019] Figure 3 This is a schematic structural diagram (one) of the pair-roller conveying unit of the present utility model.

[0020] Figure 4 This is a schematic structural diagram (two) of the pair-roller conveying unit of the present utility model.

[0021] Figure 5 This is a schematic structural diagram of the blanking plate of the present utility model.

[0022] Figure 6 This is a schematic structural diagram of the conveying roller and the blanking plate of the present utility model.

[0023] Figure 7 This is a schematic structural diagram of the connection between the pair-roller conveying unit and the material supporting platform of the present utility model.

[0024] Figure 8 This is a diagram of the usage state (one) of the present utility model.

[0025] Figure 9 This is a diagram of the usage state (two) of the present utility model.

[0026] Figure 10 This is a diagram of the usage state (three) of the present utility model.

[0027] Figure 11 This is a schematic structural diagram of the material laying workbench of the present utility model.

[0028] Figure 12 This is a schematic structural diagram of the material laying workbench of the present utility model.

[0029] Figure 13 This is a schematic structural diagram of the cutting mechanism of the present utility model.

[0030] Figure 14 This is a schematic structural diagram of the pulling-out mechanism of the present utility model.

[0031] Figure 15 This is a schematic structural diagram of the deviation rectifying mechanism and the first roller of the present utility model.

[0032] Description of main component symbols: 1. Double-roller conveying unit; 11. Conveying seat body; 111. Main body part; 112. Hanging frame part; 113. Installation through hole; 12. Driving motor; 13. Conveying roller; 131. Feeding groove; 14. First material passing channel; 15. Adjusting driving part; 16. Material blocking plate; 161. Limiting comb teeth; 162. Strip-shaped through hole; 2. Support plate; 3. Material supporting platform; 31. Limiting boss; 32. Second material passing channel; 4. Material spreading workbench; 41. Supporting platform; 411. Card slot; 42. Rotating driving part; 43. Lifting driving part; 5. Unwinding assembly; 51. Unwinding shaft; 52. Rewinding shaft; 53. Tension roller group; 6. Cutting mechanism; 61. Cutting seat body; 62. Material passing groove; 63. Knife avoiding groove; 64. Lifting pressing plate; 65. Cutting knife; 66. Cutting knife driving part; 7. Pulling out mechanism; 71. Pulling out guide rail; 72. Lifting clamping jaw; 73. Pulling out driving part; 8. Compacting roller; 81. First roller; 82. Second roller; 9. Deviation rectifying mechanism; 91. Arc-shaped vertical plate; 92. Deviation rectifying baffle; 93. Deviation rectifying driving part. Detailed implementation manners

[0033] The following further describes the present utility model in conjunction with the accompanying drawings and specific implementation manners.

[0034] As Figure 2-7 shown, the present utility model discloses a material belt conveying mechanism, including a double-roller conveying unit 1. The double-roller conveying unit 1 includes a conveying seat body 11, a driving motor 12, and two conveying rollers 13 arranged up and down. The two conveying rollers 13 are respectively rotatably arranged on the conveying seat body 11, and a first material passing channel 14 for the material belt to pass through is formed between the two conveying rollers 13. The driving motor 12 is fixedly connected to the conveying seat body 11 and drives the conveying rollers 13 to rotate, thereby driving the material belt to realize the automatic conveying of the material belt.

[0035] Among the two conveying rollers 13, at least one conveying roller 13 is a conical roller. During the process of conveying the material belt, that is, before laying the material belt, the material belt can be pre-bent to connect subsequent material belt laying paths such as circular arcs and rings, and lay the material belt in place, which is beneficial to accurately realizing the laying operation of the material belt with a large curvature. In this embodiment, both of the two conveying rollers 13 are selected as conical rollers, and one of the conveying rollers 13 is a driving roller drivenly connected to the driving motor 12, and the other is a driven roller.

[0036] According to the conveying requirements, multiple pairs of roller conveying units 1 can be arranged at intervals. If the curvature of the laid strip is large, each pair of roller conveying units 1 can be arranged along an arc-shaped or spiral strip conveying path. The arranged pairs of roller conveying units 1 are particularly suitable for application scenarios with a large laying curvature such as the preforming of bicycle rims. A support plate 2 is arranged below the pair of roller conveying units 1. The conveying seat bodies 11 in each pair of roller conveying units 1 are respectively connected to the top of the support plate 2 and thus integrated on the support plate 2, which is convenient for installation into the laying equipment. The conveying seat body 11 is rotatably connected to the support plate 2, and the rotation axis of the conveying seat body 11 is perpendicular to the strip conveying path. By rotating and adjusting the conveying seat body 11, the first material passing channel 14 can be correspondingly rotated, thereby adjusting the strip conveying path and making the connection between the first material passing channels 14 smoother.

[0037] The conveying seat body 11 mainly includes a main body part 111 and a hanging part 112. Among them, the hanging part 112 is integrally in an inverted U shape and is slidably connected to the main body part 111. Among the two conveying rollers 13, one is rotatably arranged on the main body part 111 and is drivingly connected to the driving motor 12, and the other is rotatably mounted on the hanging part 112. Correspondingly, an adjusting driving member 15 is also arranged in the pair of roller conveying units 1. The adjusting driving member 15 is fixedly connected to the main body part 111 and can drive the hanging part 112 to slide. The driving direction of the adjusting driving member 15 is perpendicular to the rotation axis of the conveying roller 13 mounted on the hanging part 112. By the adjusting driving member 15, the hanging part 112 and the conveying roller 13 thereon can be driven to move and approach or move away from the other conveying roller 13, thereby adjusting the distance between the two conveying rollers 13 to adapt to the conveying operation of strips with different thicknesses.

[0038] When the conveyed strip is a narrow strip, a plurality of annular feeding grooves 131 are formed on the outer wall of the conveying roller 13. The feeding grooves 131 are arranged centered on the rotation axis of the conveying roller 13 where they are located and are spaced along the rotation axis of the conveying roller 13 where they are located. The two conveying rollers 13 are in rolling contact with each other, and the positions of the feeding grooves 131 on the two conveying rollers 13 are staggered. The feeding grooves 131 on any one conveying roller 13 and the outer wall of the other conveying roller 13 enclose a first material passing channel 14. Through each first material passing channel 14, strip pairs can be accommodated, guided, conveyed, and the strips can be separated and limited to prevent the strips from overlapping each other and affecting the conveying.

[0039] In addition, two baffle plates 16 are provided in each pair of roller conveying units 1. The two baffle plates 16 are arranged vertically and are respectively fixedly connected to the sides of the conveying seat body 11. The positions of the baffle plates 16 correspond one by one to the positions of the conveying rollers 13. The sides of the baffle plates 16 extend towards the material belt conveying direction to form a plurality of limiting comb teeth 161. The limiting comb teeth 161 are arranged one by one in the feeding groove 131 and can divide the first material passing channel 14 vertically. By changing the position of the limiting comb teeth 161, the size of the space for the material belt to pass through in the first material passing channel 14 can be changed to adapt to material belts of different thicknesses and better guide and transmit the material belt.

[0040] Among the two baffle plates 16, one is connected to the main body part 111 of the conveying seat body 11, and the other is connected to the hanging part 112 of the conveying seat body 11 and can move with it. In this embodiment, the two baffle plates are detachably installed on the conveying seat body 11 so as to adjust the position of the limiting comb teeth 161. Specifically, mounting through holes 113 are provided on the conveying seat body 11, and strip-shaped through holes 162 are provided on the baffle plates 16. Fasteners such as rivets and bolts are passed through the mounting through holes 113 and the strip-shaped through holes 162, and the conveying seat body 11 and the baffle plates 16 are locked and fixed to each other through the fasteners for disassembly and adjustment.

[0041] In addition, a number of material supporting platforms 3 are also provided in the conveying mechanism. The material supporting platforms 3 and the pair of roller conveying units 1 are arranged in an alternating manner. The material supporting platforms 3 and the pair of roller conveying units 1 can be detachably arranged or integrally connected. Two limiting convex platforms 31 are arranged at intervals on the top of each material supporting platform 3. The two limiting convex platforms 31 are in the shape of circular arc strips with different sizes, and a second material passing channel 32 for the material belt to pass through is formed between the two limiting convex platforms 31. The position of the second material passing channel 32 corresponds to the position of the above-mentioned first material passing channel 14. Through each material supporting platform 3, each pair of roller conveying units 1 can be connected, making the material belt conveying path smooth and the material belt guiding more smooth.

[0042] As Figure 8-15 shown, the material belt conveying mechanism can be arranged in a laying device to convey the material belt. Taking the laying device used in the preforming of a bicycle wheel rim as an example, in addition to the material belt conveying mechanism, components such as a laying workbench 4, a reel releasing assembly 5, a cutting mechanism 6, a pulling-out mechanism 7, a compaction roller 8, and a deviation rectifying mechanism 9 are also provided in the laying device.

[0043] The laying workbench 4 includes a supporting platform 41, a rotary driving part 42, and a lifting driving part 43. Among them, the supporting platform 41 is used to support the preforming die 1', and a circular groove 411 for clamping and fixing the preforming die 1' is provided on the top. The rotary driving part 42 is used to drive the supporting platform 41 to rotate vertically, and the lifting driving part 43 is used to drive the supporting platform 41 to lift vertically.

[0044] The unwinding assembly 5 is arranged upstream of the strip conveying mechanism and includes an unwinding shaft 51, a winding shaft 52, a winding motor (not shown), and a tension roller set 53. Among them, a composite coil with a strip and a back film can be placed on the unwinding shaft 51. The winding shaft 52 is located on the side of the unwinding shaft 51 and is driven to rotate by the winding motor, and can be used to wind the back film. The tension roller set 53 is arranged between the unwinding shaft 51 and the strip conveying mechanism, and can unfold the strip and regulate the tension.

[0045] The cutting mechanism 6 and the pulling-out mechanism 7 are sequentially arranged downstream of the strip conveying mechanism. The cutting mechanism 6 includes components such as a cutting seat body 61, a lifting pressure plate 64, a cutting knife 65, and a cutting knife driving member 66. A material-passing groove 62 for supporting the strip and allowing the strip to pass through is arranged on the cutting seat body 61. The material-passing groove 62 is connected to the first material-passing channel 14 at the most downstream, and a cutting knife avoidance groove 63 is opened at the bottom of the material-passing groove 62. The lifting pressure plate 64 is arranged above one side of the cutting knife avoidance groove 63 away from the pulling-out mechanism 7. After the laying is completed, it can be pressed down to fix the strip in the material-passing groove 62 for cutting. After the strip laying is completed, the cutting knife 65 can be driven by the cutting knife driving member 66 to slide across the cutting knife avoidance groove 63, thereby cutting the strip and ending the laying operation.

[0046] The compaction roller 8 includes a first roller 81 and a plurality of second rollers 82. The first roller 81 and the second rollers 82 are arranged directly above the pre-forming groove 11' along the strip laying path, and both can be lifted and pressed down on the pre-forming groove 11'. Among them, the position of the first roller 81 is located on the output side of the cutting mechanism 6 and has a preliminary compaction function.

[0047] The pulling-out mechanism 7 includes a pulling-out guide rail 71, a lifting claw 72, and a pulling-out driving member 73. Among them, the pulling-out driving member 73 is used to drive the lifting claw 72 to slide along the pulling-out guide rail 71. The pulling-out guide rail 71 is located between the output side of the cutting mechanism 6 and the first roller 81, and its shape matches the strip laying path, and is used to guide the lifting claw 72 to move between the cutting mechanism 6 and the compaction roller 8. The lifting claw 72 is used to grab the strip from the material-passing groove 62 of the cutting mechanism 6. Through the pulling-out mechanism 7, the strip can be pulled out from the cutting mechanism 6, and the end of the strip can be guided below the first roller 81. Then, the first roller 81 can be driven to descend or the pre-forming die 1' can be driven to rise by the lifting driving part 43 for preliminary compaction for subsequent laying.

[0048] After the preliminary compaction, the supporting platform 41 can be driven to rotate by the rotation driving part 42, so that the compaction roller 8 rolls relative to the pre-forming die 1' along the strip laying path, that is, along the pre-forming groove 11', thereby laying and compacting the strip in the pre-forming groove 11'.

[0049] The deviation rectifying mechanism 9 includes an arc-shaped vertical plate 91, a deviation rectifying baffle 92 and a deviation rectifying driving member 93. The arc-shaped vertical plate 91 and the deviation rectifying baffle 92 are both arranged on the output side of the cutting mechanism 6. The deviation rectifying baffle 92 is in an arc-shaped strip shape, and the cross-section of the deviation rectifying baffle 92 perpendicular to its own length direction is in a U-shaped opening shape for the feeding tape to enter and exit. The whole deviation rectifying baffle 92 is obliquely arranged, with one end facing the material passing groove 62 and the other end facing the first roller 81. The side with the opening of the deviation rectifying baffle 92 faces the arc-shaped vertical plate 91. The deviation rectifying driving member 93 is used to drive the deviation rectifying baffle 92 to approach or move away from the arc-shaped vertical plate 91. When the deviation rectifying driving member 93 drives the deviation rectifying baffle 92 to move away from the arc-shaped vertical plate 91, the lifting jaw 72 can be avoided to facilitate pulling out the feeding tape. When laying the feeding tape, when the deviation rectifying driving member 93 drives the deviation rectifying baffle 92 to approach the arc-shaped vertical plate 91, it can prevent the part of the feeding tape between the cutting mechanism 6 and the lifting jaw 72 from shifting and deforming.

[0050] When the laying device operates, the feeding tape can be unrolled, conveyed, pulled out and preliminarily compacted by the unrolling assembly 5, the feeding tape conveying mechanism, the pulling out mechanism 7 and the first roller 81 in sequence, and then accurately laid by the laying workbench 4, the first roller 81, the second roller 82 and the deviation rectifying mechanism 9. After that, the feeding tape can be cut by the cutting mechanism 6 to end the laying. It can be seen that the feeding tape conveying mechanism automatically conveys the feeding tape, which has a great promoting effect on the accurate realization of laying feeding tapes with a large curvature, and is especially suitable for application scenarios such as the preforming of bicycle rims.

[0051] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all such changes are within the protection scope of the present invention.

Claims

1. A material belt conveying mechanism, characterized in that: It comprises a roller conveying unit, which comprises a conveying seat, a driving motor and two conveying rollers arranged up and down; The conveying rollers are rotatably arranged on the conveying seat body, and a first material passage through which the feeding belt passes is formed between the two conveying rollers, and at least one of the two conveying rollers is a conical roller; the driving motor is fixedly connected to the conveying seat body and drives the conveying rollers to rotate.

2. A material belt conveying mechanism according to claim 1, characterized in that: A plurality of the roller conveying units are arranged at intervals, and each roller conveying unit is arranged along an arc-shaped or spiral material belt conveying path.

3. A material belt conveying mechanism as claimed in claim 2, characterized in that: It also includes a support plate, and the transmission seat bodies in each pair of roller transmission units are rotatably connected to the support plate, and the rotation axis of the transmission seat bodies is perpendicular to the material belt conveying path.

4. A material belt conveying mechanism as claimed in claim 1, characterized in that: The conveying seat body includes a main body and a hanging frame part, the hanging frame part is slidably connected to the main body part, one of the conveying rollers is rotatably set on the main body part, and the other is rotatably mounted on the hanging frame part; the pair of roller conveying unit also includes an adjusting driving member, the adjusting driving member is fixedly connected to the main body part and can drive the hanging frame part to slide, and the driving direction of the adjusting driving member is perpendicular to the rotation axis of the conveying roller mounted on the hanging frame part.

5. A material belt conveying mechanism according to claim 1, characterized in that: A plurality of annular feed grooves are provided on the outer wall of the conveying roller, and the feed grooves are arranged at intervals along the rotating axis of the conveying roller; the two conveying rollers are in rolling contact with each other, and the positions of the feed grooves on the two conveying rollers are staggered with each other, and the feed groove on any conveying roller and the outer wall of the other conveying roller are combined to form the first material transfer channel.

6. A material belt conveying mechanism as claimed in claim 5, characterized in that: The double-roller conveying unit also includes a material baffle plate, which is detachably connected to the side of the conveying base body, and the position of the material baffle plate corresponds to the position of the conveying roller. The side of the material baffle plate extends toward the conveying direction of the material belt to form a plurality of limiting comb teeth, and the limiting comb teeth are arranged one by one in the feeding trough.

7. A material belt conveying mechanism according to claim 6, characterized in that: The conveying seat body is provided with a mounting through hole, the baffle plate is provided with a strip through hole, fasteners are inserted into the mounting through hole and the strip through hole, and the fasteners lock and fix the conveying seat body and the baffle plate to each other.

8. A material belt conveying mechanism as claimed in claim 1, characterized in that: It also includes a plurality of material supporting platforms, and the pair of roller conveying units are arranged alternately with the material supporting platforms; two limiting bosses are arranged at intervals on the top of the material supporting platforms, and a second material transfer channel for the feed belt to pass through is formed between the limiting bosses, and the position of the first material transfer channel corresponds to the position of the second material transfer channel.

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