Edge folding mechanism for aluminum-plastic composite belt
The aluminum-plastic composite belt is bent 180° and flipped side by the folding mechanism of the aluminum-plastic composite belt to form a structure of two layers of aluminum foil layers, solving the problem that the traditional wrapping method cannot form continuous metal shielding, improving shielding performance and reducing costs.
Patent Information
- Application Number
- CN202421234845.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The wrapping and dragging methods of traditional aluminum-plastic composite tape cannot form a continuous metal shielding structure, resulting in average shielding performance. Adding a tinned copper wire braided layer or tinned copper wire winding layer will increase costs and have defects such as reduced flexibility and cracking of the metal layer.
A folding mechanism of aluminum-plastic composite belt is designed. The aluminum-plastic composite belt is bent 180° through the folding module, and the side edges are flipped by the whole edge mold and the edge press roller group and then re-laid, thereby forming a structure of two layers of aluminum foil layers.
The continuous overlap of the aluminum foil layer in the aluminum-plastic composite belt is realized, the shielding performance is improved, the coupling attenuation performance is reduced, and the need to additionally set up a tin-plated copper wire layer is avoided.
Smart Images
Figure CN222580851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cable production equipment, in particular to an aluminum-plastic composite belt folding mechanism. Background Art
[0002] In the cable production process, it is necessary to use an aluminum-plastic composite tape as a shielding layer. At present, the aluminum-plastic composite tape is generally wrapped or dragged in the cable directly on the market. The traditional wrapping and dragging methods of the aluminum-plastic composite tape are to overlap the aluminum foil layer and the plastic layer of the aluminum-plastic composite tape. This overlapping structure cannot form a continuous metal shielding structure, and the shielding performance is average, and it also has a high coupling attenuation. At present, in order to solve the above problems, a layer of tinned copper wire braided layer or tinned copper wire winding layer is generally set on the aluminum-plastic composite tape to form a continuous metal shielding structure. This setting not only increases the cost, but also has certain defects when using the tinned copper wire braided layer and the tinned copper wire winding layer. For example, when using the tinned copper wire braided layer, the flexibility of the cable will be reduced, which is not convenient for laying the cable. When using the tinned copper wire winding layer, the metal layer is prone to cracking during the bending process. Utility Model Content
[0003] The utility model aims to provide an aluminum-plastic composite belt folding mechanism which can bend the aluminum-plastic composite belt before wrapping or dragging the aluminum-plastic composite belt, so that the side of the aluminum-plastic composite belt is flipped 180° and then re-attached to the aluminum-plastic composite belt. After the aluminum-plastic composite belt is folded, when wrapping or dragging, the aluminum foil layers in the aluminum-plastic composite belt can be overlapped to form a continuous metal shielding layer.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an aluminum-plastic composite belt folding mechanism, comprising: a mounting plate, a feed roller, a folding module, a pressure roller group, a guide roller, a tension roller and a discharge roller are installed on the front wall of the mounting plate, the folding module is located between the feed roller and the pressure roller group, the folding module comprises: a folding module and a trimming module, a hook-shaped flat hole is provided in the folding module, a straight-line flat hole is provided in the trimming module, and the height of the straight-line flat hole is higher than the total height of the long section and the hook section of the hook-shaped flat hole. The pressing roller group includes: a pressed roller and a pressure roller, the pressed roller is fixed on the mounting plate, the pressure roller is slidably arranged on the mounting plate located on the right side of the pressed roller, the pressure roller is pressed against the pressed roller under the action of the push spring, the tensioning roller is located on the left side of the pressing roller group, the guide roller is arranged between the pressing roller group and the tensioning roller, the guide roller is fixed on the adjusting plate, an adjusting long hole is opened on the adjusting plate, the adjusting bolt passes through the adjusting long hole and is threadedly connected to the mounting plate, and the discharging roller is located on the right side of the tensioning roller and the upper side of the pressing roller group.
[0005] Furthermore, in the aforementioned aluminum-plastic composite belt folding mechanism, the folding die and the trimming die are connected to the mounting plate through a connecting seat, and the connecting seat includes: an L-shaped bottom plate, an L-shaped receiving plate and a positioning ring, a connecting hole is opened on the horizontal arm of the L-shaped bottom plate, a bolt is passed through the connecting hole of the L-shaped bottom plate, and the bolt is threadedly connected to the mounting plate, the longitudinal arm of the L-shaped receiving plate is against the longitudinal arm of the L-shaped bottom plate and is connected by bolts, a mounting hole is opened on the horizontal arm of the L-shaped receiving plate, and the L-shaped A first tightening bolt is threadedly connected on the cross arm of the connecting plate, a mounting shaft is arranged on the positioning ring, the mounting shaft is inserted into the mounting hole, the first tightening bolt abuts against the mounting shaft, a limiting convex ring is arranged on the inner hole of the positioning ring, a second tightening bolt is threadedly connected on the positioning ring, the folding die and the trimming die are both cylindrical, the folding die and the trimming die are respectively clamped in the corresponding positioning convex rings of the connecting seat, and the second tightening bolts in the two positioning convex rings abut against the folding die and the trimming die respectively.
[0006] Furthermore, in the aforementioned aluminum-plastic composite belt folding mechanism, the long section of the hook-shaped flat hole on the folding die is arranged at the diameter of the folding die, two first positioning holes are symmetrically arranged on the folding die with an axis, and the line between the two first positioning holes is perpendicular to the hook-shaped flat hole, the I-shaped flat hole on the straightening die is arranged at the diameter of the straightening die, two second positioning holes are symmetrically arranged on the straightening die with an axis, and the line between the two second positioning holes is perpendicular to the I-shaped flat hole, the two first positioning holes of the folding die are respectively aligned one by one with the two second positioning holes of the straightening die, and a positioning adjustment rod is arranged between the aligned first positioning holes and the second positioning holes.
[0007] Furthermore, the aforementioned aluminum-plastic composite strip folding mechanism, wherein the positioning and adjusting rod comprises: an outer section rod and an inner section rod, a blind hole is opened at one end of the outer section rod, and a limiting ring cover is threadedly connected to the end, an external thread is arranged on the other end of the outer section rod, a guide block is arranged at one end of the inner section rod, and an external thread is arranged at the other end of the inner section rod, the inner section rod passes through the limiting ring cover and extends into the blind hole of the outer section rod, the guide block on the inner section rod is slidably connected to the inner wall of the blind hole, an internal thread that can be connected to the external thread of the outer section rod is arranged in the first positioning hole of the folding mold, and an internal thread that can be connected to the external thread of the inner section rod is arranged in the second positioning hole of the straightening mold.
[0008] Furthermore, in the aforementioned aluminum-plastic composite strip folding mechanism, two second fixing bolts are threadedly connected to the positioning ring, and the angle between the two second fixing bolts is between 110° and 130°.
[0009] Furthermore, in the aforementioned aluminum-plastic composite strip folding mechanism, two first fixing bolts are threadedly connected to the cross arm of the L-shaped receiving plate, and the angle between the two first fixing bolts is 90°.
[0010] Furthermore, in the aforementioned aluminum-plastic composite belt folding mechanism, rounded corners are provided on both the hook-shaped flat hole and the straight-shaped flat hole.
[0011] Furthermore, in the aforementioned aluminum-plastic composite belt folding mechanism, the connection structure between the pressure roller and the mounting plate is as follows: a spring seat is arranged on the mounting plate, a slide groove is opened at one end of the spring seat, and clamping grooves are opened on both side walls of the slide groove; the pressure roller is rotatably arranged on a connecting shaft, the connecting shaft is fixed on a slider, clamping blocks are arranged on both side walls of the slider, the slider is movably arranged in the slide groove, the two clamping blocks on the slider are slidably clamped in the corresponding clamping grooves, a baffle is arranged at the end of the spring seat, and a push spring is arranged between the slider and the slide groove.
[0012] Furthermore, in the aforementioned aluminum-plastic composite belt folding mechanism, the connection structure between the tensioning roller and the mounting plate is as follows: a long avoidance hole is opened on the mounting plate, a spring plate is slidably clamped on the rear wall of the mounting plate, a tensioning spring is arranged between the spring plate and the mounting plate, and the tensioning roller passes through the long avoidance hole and is rotatably arranged on the spring plate.
[0013] The advantage of the utility model is that the aluminum-plastic composite tape can be folded by the folding die in the folding module group, and then the aluminum-plastic composite tape in a bent state can be flattened by the edge straightening die, and finally enters the edge pressing roller group to flatten and fit the bent part of the aluminum-plastic composite tape through the extrusion action between the pressure roller and the pressed roller, so that the side of the aluminum-plastic composite tape is flipped 180° and then re-fitted on the aluminum-plastic composite tape, so that upper and lower layers of aluminum foil layers appear on the side of the aluminum-plastic composite tape. When the aluminum-plastic composite tape with such a structure enters the stranding machine for winding or dragging, the upper and lower layers of aluminum foil layers in the aluminum-plastic composite tape can overlap each other to form a continuous metal shielding layer, thereby improving the shielding performance and reducing the coupling attenuation performance, and there is no need to additionally set a tinned copper wire braided layer or a tinned copper wire winding layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the aluminum-plastic composite belt folding mechanism described in the utility model.
[0015] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle connecting seat.
[0016] Figure 3 yes Figure 1 Schematic diagram of the connection structure between the middle pressure roller and the spring seat.
[0017] Figure 4 It is a schematic diagram of the connection structure between the folding die and the positioning ring.
[0018] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure.
[0019] Figure 6 It is a schematic diagram of the connection structure between the edge trimming mold and the positioning ring.
[0020] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure.
[0021] Figure 8 yes Figure 1 Schematic diagram of the structure of the middle positioning adjustment rod. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.
[0023] like Figures 1 to 8As shown, the aluminum-plastic composite belt folding mechanism described in the utility model comprises: a mounting plate 1, on the front wall of which a feed roller 11, a folding module 2, a pressing roller group 3, a guide roller 4, a tensioning roller 5 and a discharge roller 12 are mounted, the folding module 2 is located between the feed roller 11 and the pressing roller group 3, the folding module 2 comprises: a folding die 21 and an edge trimming die 22, a hook-shaped flat hole 211 is provided in the folding die 21, a straight-line flat hole 221 is provided in the edge trimming die 22, rounded corners are provided on the hook-shaped flat hole 211 and the straight-line flat hole 221, the height of the straight-line flat hole 221 is 0.5mm to 1mm higher than the total height of the long section and the hook section of the hook-shaped flat hole 211, and the pressing roller 12 is provided with a plurality of guide rollers 4, 5, 6, 7, 8 and 9. The group 3 includes: a pressed roller 31 and a pressure roller 32, the pressed roller 31 is fixed on the mounting plate 1, the pressure roller 32 is slidably arranged on the mounting plate 1 located on the right side of the pressed roller 31, the pressure roller 32 is pressed against the pressed roller 31 under the action of the push spring 33, and the connection structure between the pressure roller 32 and the mounting plate 1 is as follows: a spring seat 13 is arranged on the mounting plate 1, a slide groove 131 is opened at one end of the spring seat 13, and a clamping groove 132 is opened on both side walls of the slide groove 131, the pressure roller 32 is rotatably arranged on the connecting shaft 321, the connecting shaft 321 is fixed on the slider 322, and clamping blocks are arranged on both side walls of the slider 322, the slider 322 is movably arranged in the slide groove 131, and the slider 322 The two card blocks on the mounting plate 13 are slidably arranged in the corresponding card slots 132, a baffle 133 is arranged at the end of the spring seat 13, a push spring 33 is arranged between the slider 322 and the slide slot 131, the tensioning roller 5 is located on the left side of the edge pressing roller group 3, and the connection structure between the tensioning roller 5 and the mounting plate 1 is as follows: an avoidance long hole 14 is opened on the mounting plate 1, a spring plate 141 is slidably arranged on the rear wall of the mounting plate 1, a tensioning spring 142 is arranged between the spring plate 141 and the mounting plate 1, the tensioning roller 5 passes through the avoidance long hole 14 and is rotatably arranged on the spring plate 141, the guide roller 4 is arranged between the edge pressing roller group 3 and the tensioning roller 5, the guide rod 4 is fixed on the adjusting plate 41, and an adjusting plate 41 is opened on the adjusting plate 41 The adjusting bolt 412 passes through the adjusting hole 411 and is threadedly connected to the mounting plate 1. The position of the guide roller 4 can be adjusted by adjusting the mounting angle and the up and down position of the adjusting plate 41. When the tensioning force of the tensioning roller 5 is too small, the guide roller 4 can be adjusted in the direction away from the tensioning roller 5 to increase the distance between the guide roller 4 and the tensioning roller 5, thereby increasing the tensioning force of the tensioning roller 5 on the aluminum-plastic composite strip. When the tensioning force of the tensioning roller 5 is too large, the guide roller 4 can be adjusted in the direction close to the tensioning roller 5 to reduce the distance between the guide roller 4 and the tensioning roller 5, thereby reducing the tensioning force of the tensioning roller 5 on the aluminum-plastic composite strip. The discharging roller 12 is located on the right side of the tensioning roller 5 and on the upper side of the edge pressing roller group 3.
[0024] After the aluminum-plastic composite tape is pulled out from the unwinding mechanism, it first contacts the feed roller 11, and the aluminum foil layer of the aluminum-plastic composite tape contacts the feed roller 11 upwards, and then the aluminum-plastic composite tape is extended into the hook-shaped flat hole 211 of the folding die 21, and the side of the aluminum-plastic composite tape is bent downward 180° under the guidance of the hook-shaped flat hole 211, and then the bent aluminum-plastic composite tape is extended into the I-shaped flat hole 221 of the edge straightening die 22. Since the I-shaped flat hole 211 is higher than the total height of the long section and the hook section of the hook-shaped flat hole 211, the aluminum-plastic composite tape in the bent state can smoothly enter the I-shaped flat hole 221, and the bending portion will not be reset under the restriction of the I-shaped flat hole 221. The I-shaped flat hole 221 flattens the aluminum-plastic composite tape in the bent state, so that the bending portion is parallel to the main body of the aluminum-plastic composite tape, and the flattened aluminum in the bent state The plastic composite tape is wound on the pressed roller 31 of the edge pressing roller group 3, and the pressure roller 32 will press against the pressed roller 31 under the pushing action of the pushing spring 33 to flatten the aluminum-plastic composite tape on the pressed roller 31, so that the bent portion of the side of the aluminum-plastic composite tape is close to the aluminum-plastic composite tape body, that is, the plastic layer of the bent portion of the side of the aluminum-plastic composite tape is in contact with the plastic layer of the aluminum-plastic composite tape body, and the aluminum foil layer on the bent portion of the side of the aluminum-plastic composite tape faces downward. The flattened aluminum-plastic composite tape is wound on the guide roller 4, the tensioning roller 5 and the discharge roller 12 in sequence, and finally enters the stranding machine for wrapping or dragging. When wrapping or dragging, the aluminum foil layer on the aluminum-plastic composite tape body will overlap with the aluminum foil layer on the bent portion of the side of the aluminum-plastic composite tape to form a continuous metal shielding layer, thereby improving the shielding performance of the aluminum-plastic composite tape and reducing the coupling attenuation performance.
[0025] In this embodiment, the folding die 21 and the trimming die 22 are connected to the mounting plate 1 through a connecting seat 23, and the connecting seat 23 includes: an L-shaped bottom plate 231, an L-shaped receiving plate 232 and a positioning ring 233, a connecting hole 2311 is opened on the horizontal arm of the L-shaped bottom plate 231, and a bolt is passed through the connecting hole 2311 of the L-shaped bottom plate 231, and the bolt is threadedly connected to the mounting plate 1, and the longitudinal arm of the L-shaped receiving plate 232 is against the longitudinal arm of the L-shaped bottom plate 231 and is connected by bolts. Next, a mounting hole is opened on the cross arm of the L-shaped receiving plate 232, and two first fixing bolts 2321 are threadedly connected on the cross arm of the L-shaped receiving plate 232. Since the two first fixing bolts 2321 are respectively arranged on two adjacent side walls of the cross arm of the L-shaped receiving plate 232, the angle between the two first fixing bolts 2321 is 90°. A mounting shaft 2331 is arranged on the positioning ring 233, and the mounting shaft 2331 is inserted into the mounting hole. The two first fixing bolts 2321 are screwed into the cross arm of the L-shaped receiving plate 232. The bolts 2321 are all against the installation shaft 2331. Since the two first fixing bolts 2321 are at an angle of 90°, the locking force on the installation shaft 2331 can be improved. A limiting convex ring 2332 is provided on the inner hole of the positioning ring 233. Two second fixing bolts 2333 are threadedly connected on the positioning ring 233. The angle between the two second fixing bolts 2333 is between 110° and 130°. The hemming mold 21 and the trimming mold 22 are both cylindrical. The hemming die 21 and the trimming die 22 are respectively clamped in the positioning rings 233 of the corresponding connecting seat 23, and the second fixing bolts 2333 in the two positioning rings 233 respectively abut against the hemming die 21 and the trimming die 22. Since the angle between the two second fixing bolts 2333 is between 110° and 130°, the two second fixing bolts 2333 can apply extrusion forces in two different directions to the hemming die 21 or the trimming die 22, thereby improving the locking force on the hemming die 21 or the trimming die 22.
[0026] During the installation process, first connect the L-shaped receiving plate 232 with the L-shaped bottom plate 231, then fix the positioning ring 233 on the L-shaped receiving plate 232, and then fix the L-shaped bottom plate 231 on the mounting plate 1 by bolts. When the two connecting seats 23 are all installed on the mounting plate 1, adjust the two positioning rings 233 so that the aluminum-plastic composite belt between the feed roller 11 and the pressed roller 31 is perpendicular to the positioning ring 233. The adjustment method is as follows: first wind the aluminum-plastic composite belt between the feed roller 11 and the pressed roller 31, and the aluminum-plastic composite belt passes through the two positioning rings 233. Then, use a ruler to fit it on the aluminum-plastic composite belt, and place one end of the ruler against the positioning ring 233. Rotate the positioning ring 233. When the positioning ring 233 is perpendicular to the end of the ruler, it means that the positioning ring 233 is perpendicular to the aluminum-plastic composite belt. Then, lock it with the first tightening bolt 2321, and then remove the aluminum-plastic composite belt. The hemming die 21 and the trimming die 22 are placed in the two positioning rings 233 respectively, and then the hemming die 21 and the trimming die 22 are adjusted. Since the long section of the hook-shaped flat hole 211 on the hemming die 21 is set at the diameter of the hemming die 21, and the straight-line flat hole 221 on the trimming die 22 is set at the diameter of the trimming die 22, it is only necessary to rotate the hemming die 21 or the trimming die 22 in the positioning ring 233 to adjust the hook-shaped flat hole 211 and the straight-line flat hole 221. The position of the hole 221 is such that when the hook-shaped flat hole 211 in the folding die 21 and the straight-line flat hole 221 in the trimming die 22 are in the same straight line, they are locked with the second fixing bolt 2333. The aluminum-plastic composite strip is in a straight line between the feed roller 11, the folding die 21, the trimming die 22 and the pressed roller 31, and the aluminum-plastic composite strip will not be scratched by the hook-shaped flat hole 211 on the folding die 21 or the straight-line flat hole 221 on the trimming die 22.
[0027] Since only the long section of the hook-shaped flat hole 211 in the folding die 21 is at the diameter, and the hook section of the hook-shaped flat hole 211 is offset, it is difficult to adjust the folding die 21. In order to facilitate adjustment, this embodiment adopts the following method for operation: two first positioning holes 212 are symmetrically arranged on the folding die 21 with an axis, and the line between the two first positioning holes 212 is perpendicular to the hook-shaped flat hole 211; two second positioning holes 222 are symmetrically arranged on the straightening die 22 with an axis, and the line between the two second positioning holes 222 is perpendicular to the straight-line flat hole 221; the two first positioning holes 212 of the folding die 21 are respectively aligned one by one with the two second positioning holes 222 of the straightening die 22; a positioning adjustment rod 6 is arranged between the aligned first positioning holes 212 and the second positioning holes 222. The positioning and adjusting rod 6 includes: an outer section rod 61 and an inner section rod 62. A blind hole 611 is opened at one end of the outer section rod 61, and a limiting ring cover 612 is threadedly connected to the end. A first external thread 613 is arranged on the other end of the outer section rod 61, a guide block 621 is arranged at one end of the inner section rod 62, and a second external thread 622 is arranged at the other end of the inner section rod 62. The inner section rod 62 passes through the limiting ring cover 612 and extends into the blind hole 611 of the outer section rod 61. The guide block 621 on the inner section rod 62 is slidably connected to the inner wall of the blind hole 611. An internal thread that can be connected to the first external thread 613 of the outer section rod 61 is arranged in the first positioning hole 212 of the folding mold 21, and an internal thread that can be connected to the second external thread 622 of the inner section rod 62 is arranged in the second positioning hole 222 of the straightening mold 22.
[0028] When adjusting the folding die 21 and the trimming die 22, after the two positioning rings 233 are adjusted, the folding die 21 and the trimming die 22 are respectively inserted into the corresponding positioning rings 233, and then the outer section rod 61 of the positioning adjustment rod 6 is threadedly connected to the first positioning hole 212 of the folding die 21, and then the inner section rod 62 of the positioning adjustment rod 6 is extended outward from the outer section rod 61 and then threadedly connected to the second positioning hole 222 of the trimming die 22. After the positioning adjustment rod 6 is connected between the two pairs of aligned first positioning holes 212 and second positioning holes 222, it means that the folding die 21 and the trimming die 22 are in a state of being folded. The hook-shaped flat hole 211 in the mold 21 and the straight flat hole 221 in the edge trimming mold 22 are in the same straight line, and then the aluminum-plastic composite strip is wound between the feed roller 11 and the pressed roller 31. The aluminum-plastic composite strip passes through the hook-shaped flat hole 211 of the folding mold 21 and the straight flat hole 221 of the edge trimming mold 22, and then the edge trimming mold 22 is rotated. When the aluminum-plastic composite strip between the edge trimming mold 22 and the pressed roller 31 is flat, it means that the feed roller 11, the hook-shaped flat hole 211 of the folding mold 21, the straight flat hole 221 of the edge trimming mold 22 and the pressed roller 31 are in the same straight line.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.
Claims
1. Aluminum-plastic composite belt folding mechanism, including: The mounting plate is characterized in that: a feed roller, a folding module, a pressing roller group, a guide roller, a tensioning roller and a discharging roller are installed on the front wall of the mounting plate, the folding module is located between the feed roller and the pressing roller group, and the folding module comprises: a folding module and a straightening module, a hook-shaped flat hole is arranged in the folding module, and a straightening module is arranged in the straightening module. The height of the straightening flat hole is higher than the total height of the long section and the hook section in the hook-shaped flat hole. The pressing roller group comprises: a pressed roller and a pressure roller, the pressed roller is fixed on the mounting plate, the pressure roller is slidably arranged on the mounting plate located on the right side of the pressed roller, the pressure roller rests on the pressed roller under the action of a push spring, the tensioning roller is located on the left side of the pressing roller group, the guide roller is arranged between the pressing roller group and the tensioning roller, the guide rod is fixed on the adjusting plate, an adjusting long hole is opened on the adjusting plate, the adjusting bolt passes through the adjusting long hole and is threadedly connected to the mounting plate, and the discharging roller is located on the right side of the tensioning roller and on the upper side of the pressing roller group.
2. The aluminum-plastic composite belt folding mechanism according to claim 1, characterized in that: The folding mold and the trimming mold are both connected to the mounting plate through a connecting seat, and the connecting seat comprises: an L-shaped base plate, an L-shaped receiving plate and a positioning ring, a connecting hole is opened on the transverse arm of the L-shaped base plate, a bolt is passed through the connecting hole of the L-shaped base plate, the bolt is threadedly connected to the mounting plate, the longitudinal arm of the L-shaped receiving plate rests on the longitudinal arm of the L-shaped base plate and is connected by the bolt, a mounting hole is opened on the transverse arm of the L-shaped receiving plate, a first tightening bolt is threadedly connected on the transverse arm of the L-shaped receiving plate, a mounting shaft is provided on the positioning ring, the mounting shaft is inserted into the mounting hole, the first tightening bolt rests on the mounting shaft, a limiting convex ring is provided on the inner hole of the positioning ring, and a second tightening bolt is threadedly connected on the positioning ring, the folding mold and the trimming mold are both cylindrical, the folding mold and the trimming mold are respectively clamped in the positioning convex rings of the corresponding connecting seat, and the second tightening bolts in the two positioning convex rings respectively rest on the folding mold and the trimming mold.
3. The aluminum-plastic composite belt folding mechanism according to claim 2, characterized in that: The long section of the hook-shaped flat hole on the folding die is arranged at the diameter of the folding die, and two first positioning holes are symmetrically arranged on the folding die with an axis, and the line between the two first positioning holes is perpendicular to the hook-shaped flat hole. The I-shaped flat hole on the straightening die is arranged at the diameter of the straightening die, and two second positioning holes are symmetrically arranged on the straightening die with an axis, and the line between the two second positioning holes is perpendicular to the I-shaped flat hole. The two first positioning holes of the folding die are respectively aligned one by one with the two second positioning holes of the straightening die, and a positioning adjustment rod is arranged between the aligned first positioning holes and the second positioning holes.
4. The aluminum-plastic composite belt folding mechanism according to claim 3 is characterized in that: The positioning and adjusting rod includes: an outer section rod and an inner section rod, a blind hole is opened at one end of the outer section rod, and a limiting ring cover is threadedly connected to the end, an external thread is arranged on the other end of the outer section rod, a guide block is arranged at one end of the inner section rod, and an external thread is arranged at the other end of the inner section rod, the inner section rod passes through the limiting ring cover and extends into the blind hole of the outer section rod, the guide block on the inner section rod is slidably connected to the inner wall of the blind hole, an internal thread that can be connected to the external thread of the outer section rod is arranged in the first positioning hole of the folding mold, and an internal thread that can be connected to the external thread of the inner section rod is arranged in the second positioning hole of the straightening mold.
5. The aluminum-plastic composite strip folding mechanism according to any one of claims 2 to 4, characterized in that: Two second fixing bolts are threadedly connected to the positioning ring, and the angle between the two second fixing bolts is between 110° and 130°.
6. The aluminum-plastic composite strip folding mechanism according to any one of claims 2 to 4, characterized in that: Two first fixing bolts are threadedly connected to the horizontal arm of the L-shaped receiving plate, and the angle between the two first fixing bolts is 90 degrees.
7. The aluminum-plastic composite belt folding mechanism according to claim 1, characterized in that: Rounded corners are arranged on the hook-shaped flat hole and the straight-shaped flat hole.
8. The aluminum-plastic composite belt folding mechanism according to claim 1, characterized in that: The connection structure between the pressure roller and the mounting plate is as follows: a spring seat is arranged on the mounting plate, a slide groove is opened at one end of the spring seat, and clamping grooves are opened on both side walls of the slide groove; the pressure roller is rotatably arranged on the connecting shaft, and the connecting shaft is fixed on the slider, and clamping blocks are arranged on both side walls of the slider, and the slider is movably arranged in the slide groove, and the two clamping blocks on the slider are slidably clamped in the corresponding clamping grooves, a baffle is arranged at the end of the spring seat, and a push spring is arranged between the slider and the slide groove.
9. The aluminum-plastic composite belt folding mechanism according to claim 1, characterized in that: The connection structure between the tensioning roller and the mounting plate is as follows: a long avoidance hole is opened on the mounting plate, a spring plate is slidably clamped on the rear wall of the mounting plate, a tensioning spring is arranged between the spring plate and the mounting plate, and the tensioning roller passes through the long avoidance hole and is rotatably arranged on the spring plate.