Aluminum plastic pipe forming machine with deviation rectifying function

Abstract

The invention discloses an aluminum-plastic pipe forming machine with a deviation rectifying function, and relates to the field of aluminum-plastic pipe machining. The aluminum plastic pipe forming machine with the deviation rectifying function comprises a forming machine body, the forming machine body comprises a rack, a feeding positioning piece, a pre-bending piece, a forming rolling piece and a forming discharging piece, the feeding positioning piece, the pre-bending piece, the forming rolling piece and the forming discharging piece are sequentially installed on the rack, and a deviation rectifying mechanism is installed at the top of the forming rolling piece. According to the aluminum-plastic pipe forming machine with the deviation rectifying function, an aluminum strip penetrates through the feeding positioning piece and is continuously rolled through the multiple inner concave rollers and the multiple outer convex rollers, so that the two sides of the aluminum strip gradually tilt upwards; then continuous shrinkage shaping is conducted through shrinkage shaping grooves in the multiple shrinkage rollers, at the moment, the tops of the two sides of the aluminum strip are inserted into deviation rectifying positioning grooves, the heights of the two sides of the aluminum strip are kept the same all the time in the aluminum strip bending process, and therefore a final aluminum strip welding seam is located in the center of the top, and the welding seam is in a straight line; and at the moment, welding seams are welded through welding equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum-plastic pipe processing, and particularly to an aluminum-plastic pipe forming machine with an alignment correction function. Background Art

[0002] An aluminum-plastic pipe is a plastic pipe wrapped with an aluminum shell on the outside. Through the aluminum shell, the outer layer can be strengthened to achieve the effects of wear resistance and puncture resistance. At the same time, the plastic pipe inside has better toughness, deformability, and corrosion resistance.

[0003] In the existing aluminum-plastic pipe processing, the plastic pipe passes through a coating machine, and the coating machine gradually bends the aluminum strip, so that the aluminum strip is wrapped around the outer surface of the plastic pipe in a tubular shape, and then the formed aluminum pipe is welded at the connection seam;

[0004] However, in the actual coating process, since the aluminum strip is continuously roll-pressed and formed by corresponding shaping rollers during the process of gradually bending upwards on both sides, the aluminum strip is prone to shift during the bending process. When the aluminum strip is finally bent into a tubular shape, its weld seam cannot be guaranteed to be in a straight line, resulting in difficulties in subsequent welding work and easy appearance of gaps in welding. Therefore, an aluminum-plastic pipe forming machine with an alignment correction function is provided specifically. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an aluminum-plastic pipe forming machine with an alignment correction function, which solves the problem that when the existing aluminum-plastic pipe forming machine is in use, the aluminum strip is prone to shift during the bending process. When the aluminum strip is finally bent into a tubular shape, its weld seam cannot be guaranteed to be in a straight line, resulting in difficulties in subsequent welding work and easy appearance of gaps in welding.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: an aluminum-plastic pipe forming machine with an alignment correction function, including a forming machine main body, and the forming machine main body includes a frame and a feeding positioning member, a pre-bending member, a forming roll-pressing member, and a forming discharging member sequentially installed on the frame;

[0007] The feeding positioning member is used to make the aluminum plate feed in the center;

[0008] The pre-bending member includes multiple groups of outwardly convex rollers and inwardly concave rollers that are pressed against each other. Through continuous roll-pressing of the multiple groups of outwardly convex rollers and inwardly concave rollers, both sides of the aluminum plate are continuously bent upwards and warped;

[0009] The forming roll-pressing member includes a plurality of continuously and symmetrically arranged shrinking rollers, and shrinking and shaping grooves are formed on the outer wall of the shrinking rollers. The multiple groups of shrinking and shaping grooves continuously shrink inwards, so that both sides of the pre-bent aluminum plate further shrink through the shrinking and shaping grooves until both sides come together and enclose into a tubular shape;

[0010] The forming discharging member is used for discharging the formed aluminum-plastic pipe;

[0011] A deviation rectifying mechanism is installed at the top of the formed rolling part. The deviation rectifying mechanism includes a positioning deviation rectifying strip suspended above the tops of a plurality of shrinking rollers. The width of the positioning deviation rectifying strip is in a shrinking shape along the moving direction of the aluminum plate. Width-constant deviation rectifying positioning grooves are formed at the bottoms of both sides of the positioning deviation rectifying strip. When the aluminum plate moves, both sides thereof abut against the inner tops of the deviation rectifying positioning grooves, so that the heights of both sides of the aluminum plate are flush, ensuring that the weld seam is at the top center when the aluminum plate finally forms a tube, which is convenient for welding.

[0012] Preferably, an aluminum strip edge cutting mechanism for cutting and sizing the two sides of the aluminum strip is arranged at the feeding end of the main body of the forming machine. Scrap collecting mechanisms for winding up the redundant aluminum strip after cutting are arranged on both sides of the discharging end of the aluminum strip edge cutting mechanism. A high-speed aluminum tube traction mechanism for discharging the formed aluminum-plastic tube is installed at the discharging end of the main body of the forming machine.

[0013] Preferably, the aluminum strip edge cutting mechanism includes a supporting part and loading parts movably installed on both sides of the top of the supporting part. Cutting knife parts are installed in both of the two loading parts;

[0014] The cutting knife part includes an upper pressing knife and a lower pressing knife which are oppositely arranged up and down. A material feeding gap is formed inside the upper pressing knife and the lower pressing knife. A waste material gap is formed outside the upper pressing knife and the lower pressing knife. The side of the material feeding gap opposite to the waste material gap is vertically offset up and down to form a cutting area. The aluminum strip passes through the cutting area and is cut to form a middle formed material and waste materials on both sides.

[0015] Preferably, the supporting part includes a supporting bottom plate and guiding slide rails fixedly welded on both sides of the top of the supporting bottom plate. A bidirectional lead screw is rotatably arranged in the middle of the supporting bottom plate;

[0016] The loading part includes an installation frame and a positioning slider and a connecting block fixedly welded at the bottom of the installation frame. The positioning slider is slidably arranged on the outer wall of the guiding slide rail. The two connecting blocks are respectively threadedly connected to the outer surfaces of both ends of the bidirectional lead screw;

[0017] Support seats are fixedly assembled on the upper and lower sides inside the installation frame, and a cushion block is arranged between the two groups of support seats. Servo motors are fixedly installed outside the upper pressing knife and the lower pressing knife respectively, and the servo motors are fixedly assembled in the support seats.

[0018] Preferably, the scrap collecting mechanism includes a scrap rack and a scrap traction part installed on the top of the scrap rack. A scrap cutting part is installed inside the scrap rack, and an inclined material guiding hopper is arranged at the bottom of the scrap cutting part;

[0019] The waste cutting member includes a mounting position fixedly arranged inside the waste rack. A fixed cutting knife is fixedly installed in the mounting position. A cylindrical knife rack is rotatably arranged inside the waste rack. A cutting motor for driving the rotation of the cylindrical knife rack is fixedly assembled on the back of the waste rack. A plurality of rotary cutting knives are fixedly assembled on the outer wall of the cylindrical knife rack and are distributed in an annular array. The plurality of rotary cutting knives rotate with the cylindrical knife rack to the fixed cutting knife, and the aluminum strip passing through the surface of the fixed cutting knife is cut into aluminum sheets of equal length by the side of the rotary cutting knife opposite to the fixed cutting knife.

[0020] Preferably, the waste traction member includes a support plate fixedly arranged on the top of the waste rack. An auxiliary pressure wheel and a driving pressure wheel are rotatably arranged on the outer wall of the support plate. A driving motor is fixedly arranged on the support plate. A transmission belt is installed between the driving motor and the driving pressure wheel. A downwardly penetrating guide tube is arranged at the bottom of the side where the auxiliary pressure wheel and the driving pressure wheel face each other. An adaptive extrusion adjustment member is arranged on the side of the auxiliary pressure wheel.

[0021] The adaptive extrusion adjustment member includes a fixed strip fixedly arranged at one end of the support plate. A support arm is fixedly arranged in the fixed strip. The end of the support arm is fixedly provided with a support shaft bearing-connected to the auxiliary pressure wheel, and a memory spring is arranged on the outer wall of the support arm and between the support shaft and the fixed strip.

[0022] Preferably, the high-speed aluminum pipe traction mechanism includes a machine case and a machine cover rotatably arranged on the top of the machine case. A circulating traction chain is assembled inside the machine case. Traction clamping members are installed on the outer wall of the circulating traction chain. After the aluminum-plastic pipe is clamped by the traction clamping members, it is horizontally tractioned by the circulating traction chain.

[0023] The traction clamping member includes a support rail and clamping rings slidably arranged on both sides of the top of the support rail. A lower positioning wheel and side positioning wheels are respectively assembled at the bottom and both sides of the support rail. An upper positioning wheel is installed on the side of the clamping ring. Chain connection parts are integrally formed at both ends of the bottom of the support rail.

[0024] Preferably, a support frame is fixedly installed inside the machine case. Driving sprockets are rotatably arranged inside both ends of the support frame. The circulating traction chain is installed between the two driving sprockets at both ends. A blanking motor for driving a set of driving sprockets to rotate is fixedly assembled at one end of the support frame.

[0025] Positioning slide rails are fixedly assembled on both sides of the support frame. The lower positioning wheel rolls along the inner side of the positioning slide rail. The upper positioning wheel rolls along the outer side of the positioning slide rail. The side positioning wheel rolls along the inside of the positioning slide rail.

[0026] A walking servo is installed on the support rail, a fixture mounting seat is fixedly assembled on the walking servo, the clamping ring is fixedly assembled on the fixture mounting seat, the upper positioning wheel is rotatably arranged on the fixture mounting seat, and a traction spring is fixedly connected between one side of the upper positioning wheel and the fixture mounting seat. The upper positioning wheel is adaptively twisted by the traction spring.

[0027] Preferably, the feeding positioning member includes a support bar fixedly arranged at the front end of the frame. C-shaped positioning seats are slidably arranged on both sides of the top of the support bar. Movable clamping pieces are arranged inside the opposite sides of the two groups of C-shaped positioning seats. An adjusting screw rod is threadedly connected to the inner bottom of the C-shaped positioning seat. The adjusting screw rod is rotatably connected to the lower end of the movable clamping piece for adjusting the opening size of the movable clamping piece. A contact roller is rotatably arranged inside the C-shaped positioning seat. A bidirectional lead screw is rotatably arranged inside the support bar. The two groups of C-shaped positioning seats are respectively threadedly connected to both ends of the bidirectional lead screw.

[0028] The pre-bending member further includes a vertical plate fixedly arranged on the top of the frame. The outer convex roller and the inner concave roller are rotatably arranged symmetrically up and down in the vertical plate. A first clearance groove is formed in the middle of the outer convex roller. Deformation convex grooves are formed on the outer wall of the outer convex roller. Deformation concave grooves are formed on both sides of the inner wall of the inner concave roller. The inclination angles of multiple groups of the deformation convex grooves and the deformation concave grooves gradually increase.

[0029] The forming roller pressing member further includes a horizontal plate fixedly arranged on the top of the frame. The shrinking roller is rotatably arranged on the horizontal plate, and a forming motor for driving the shrinking roller to rotate is fixedly arranged at the bottom of the horizontal plate.

[0030] The forming discharging member includes a forming carrier plate, forming discharging pressure rollers, a first adjusting block and a second adjusting block. The forming carrier plate is fixedly arranged on the top of the frame. An X-axis adjusting screw rod is installed between the second adjusting block and the first adjusting block. A Y-axis adjusting screw rod is installed between the second adjusting block and the forming discharging pressure roller. Multiple groups of the forming discharging pressure rollers are distributed in an annular array.

[0031] Preferably, a gantry is suspended on the top of the horizontal plate. The positioning and deviation correcting strip is fixedly installed at the bottom of the gantry. An arc-shaped groove is formed at the bottom of the positioning and deviation correcting strip. A second clearance groove is formed between the arc-shaped groove and the two groups of shrinking rollers symmetrically arranged on the left and right.

[0032] Vertical grooves are formed at the front end and the middle and rear sections of the arc-shaped groove, and positioning pressure rollers are rotatably connected inside the vertical grooves.

[0033] A third clearance groove adapted to the shrinking roller is formed inside the shrinkage shaping groove.

[0034] The invention discloses an aluminum-plastic tube forming machine with a deviation correction function, which has the following beneficial effects:

[0035] 1. The aluminum-plastic tube forming machine with a deviation correction function inserts the plastic tube from the front end of the frame, passes through the first and second avoidance grooves in sequence, and passes out from the end of the frame, and then inserts the aluminum strip from the feed positioning piece so that the aluminum strip can be fed in the center, and then the aluminum strip passes through a plurality of inner concave rollers and outer convex rollers in sequence so that both sides of the aluminum strip gradually curl upward; then the aluminum strip is continuously shrunk and shaped through the shrinkage shaping grooves in a plurality of continuous shrinkage rollers, and at this time, the tops of both sides of the aluminum strip are inserted into the deviation correction positioning grooves and abut against the tops in the deviation correction positioning grooves, so that the heights of both sides of the aluminum strip are always the same during the bending process, so that the final aluminum strip weld is at the top center position, so that the weld is in a straight line, and at this time, the weld can be welded by welding equipment.

[0036] 2. The aluminum-plastic tube forming machine with a deviation correction function is equipped with an aluminum strip trimming mechanism at the feeding end of the forming machine body, and a waste collecting mechanism is installed on both sides of the discharging end of the aluminum strip trimming mechanism. The aluminum strip is cut on both sides by the aluminum strip trimming mechanism, and the waste collecting mechanism pulls and cuts the waste edges of the cut aluminum strip into small aluminum sheets, and the size of the small aluminum sheets can be adjusted to ensure that the width of the aluminum strip meets the requirements. At the same time, the two sides of the aluminum strip are flat, which is convenient for welding operations, and the waste is automatically recycled.

[0037] 3. The aluminum-plastic tube forming machine with a deviation correction function is provided with a high-speed aluminum tube traction mechanism at the discharge end of the forming machine body, and a plurality of traction clamps are driven to move in a circular motion through a circular traction chain. When the traction clamps move to the upper side of the positioning slide rail, the aluminum-plastic tube is automatically clamped. When the traction clamps move to the end of the positioning slide rail, they are automatically opened to release the clamps of the aluminum-plastic tube, thereby realizing high-speed traction movement of the aluminum-plastic tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the outer surface structure of the aluminum strip trimming mechanism of the present invention;

[0041] Figure 3 This is a schematic diagram of the end structure of the aluminum strip trimming mechanism of the present invention;

[0042] Figure 4 This is a front view structural schematic diagram of the aluminum strip trimming mechanism of the present invention;

[0043] Figure 5 This is an internal view structural schematic diagram of the aluminum strip trimming mechanism of the present invention;

[0044] Figure 6 This is an external view structural schematic diagram of the waste collection mechanism of the present invention;

[0045] Figure 7 This is an internal view structural schematic diagram of the waste collection mechanism of the present invention;

[0046] Figure 8 This is a structural schematic diagram of the waste traction part of the present invention;

[0047] Figure 9 This is an external view structural schematic diagram of the main body of the forming machine of the present invention;

[0048] Figure 10 This is a structural schematic diagram of the front end part of the main body of the forming machine of the present invention;

[0049] Figure 11 This is a structural schematic diagram of the end part of the main body of the forming machine of the present invention;

[0050] Figure 12 This is a structural schematic diagram of the pre-bending part of the present invention;

[0051] Figure 13 This is a structural schematic diagram of the forming roll pressing part of the present invention;

[0052] Figure 14 This is a structural schematic diagram of the deviation correction mechanism of the present invention;

[0053] Figure 15 This is an external view structural schematic diagram of the high-speed aluminum tube traction mechanism of the present invention;

[0054] Figure 16 This is a structural schematic diagram of the top inside the chassis of the present invention;

[0055] Figure 17 This is an external view structural schematic diagram of the support frame of the present invention;

[0056] Figure 18 This is a structural schematic diagram of the traction clamping part of the present invention;

[0057] Figure 19 This is a schematic diagram of the aluminum strip deformation process of the present invention.

[0058] In the figure: 1. Aluminum strip trimming mechanism; 11. Support part; 111. Support base plate; 112. Guide slide rail; 113. Bi-directional lead screw; 12. Loading part; 121. Installation frame; 122. Positioning slider; 123. Connecting block; 124. Support seat; 125. Spacer block; 13. Cutter part; 131. Upper pressing cutter; 132. Lower pressing cutter; 133. Feeding gap; 134. Servo motor; 135. Scrap gap;

[0059] 2. Scrap collection mechanism; 21. Scrap rack; 22. Scrap traction part; 221. Support plate; 222. Driving motor; 223. Driving pressure wheel; 224. Auxiliary pressure wheel; 225. Guide pipe; 226. Fixed strip; 227. Support arm; 228. Memory spring; 229. Transmission belt; 23. Material guide hopper; 24. Scrap cutting part; 241. Cutting motor; 242. Cylindrical tool holder; 243. Rotary cutter; 244. Installation position; 245. Fixed cutter;

[0060] 3. Forming machine main body; 31. Frame; 32. Feeding positioning part; 321. Support bar; 322. C-shaped positioning seat; 323. Bi-directional lead screw; 324. Movable clip; 325. Contact roller; 326. Adjusting lead screw; 33. Pre-bending part; 331. Vertical plate; 332. Concave roller; 333. Convex roller; 334. Deformation groove; 335. Deformation convex groove; 336. First clearance groove; 34. Forming roller pressing part; 341. Horizontal plate; 342. Shrinkage roller; 343. Forming motor; 344. Shrinkage and shaping groove; 35. Forming discharging part; 351. Forming carrier plate; 352. Forming discharging pressure roller; 353. First adjusting block; 354. Second adjusting block;

[0061] 4. High-speed aluminum pipe traction mechanism; 41. Machine case; 42. Machine cover; 43. Support frame; 44. Positioning slide rail; 45. Circulating traction chain; 46. Traction clamping part; 461. Support rail; 462. Chain connecting part; 463. Side positioning wheel; 464. Fixture mounting seat; 465. Walking servo; 466. Lower positioning wheel; 467. Clamping ring; 468. Upper positioning wheel; 469. Traction spring; 47. Unloading motor; 48. Sprocket;

[0062] 5. Deviation rectifying mechanism; 51. Gantry; 52. Positioning deviation rectifying bar; 53. Deviation rectifying positioning groove; 54. Third clearance groove; 55. Arc-shaped groove; 56. Vertical groove; 57. Positioning pressure wheel. Detailed implementation method

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0064] By providing a plastic-aluminum pipe forming machine with an alignment correction function in the embodiments of the present application, the problem that when the existing plastic-aluminum pipe forming machine is in use, the aluminum strip is prone to deviation during the bending process, resulting in the weld seam not being able to be guaranteed to be in a straight line when the aluminum strip is finally bent into a tubular shape, thus making it difficult to carry out subsequent welding work and prone to gaps in welding is solved.

[0065] To better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0066] The embodiments of the present invention disclose a plastic-aluminum pipe forming machine with an alignment correction function.

[0067] According to the attached Figure 1-19 As shown, it includes a forming machine main body 3. The forming machine main body 3 includes a frame 31 and a feeding positioning member 32, a pre-bending member 33, a forming roll pressing member 34, and a forming discharging member 35 that are sequentially installed on the frame 31.

[0068] The feeding positioning member 32 is used to center the feeding of the aluminum plate. The feeding positioning member 32 includes a support bar 321 fixedly arranged at the front end of the frame 31. C-shaped positioning seats 322 are slidably arranged on both sides of the top of the support bar 321. Movable clamping pieces 324 are arranged inside the opposite sides of the two groups of C-shaped positioning seats 322. The inner bottom of the C-shaped positioning seat 322 is threadedly connected with an adjusting screw rod 326. The adjusting screw rod 326 is rotatably connected to the lower end of the movable clamping piece 324 and is used to adjust the opening size of the movable clamping piece 324. A contact roller 325 is rotatably arranged inside the C-shaped positioning seat 322. A bidirectional lead screw 323 is rotatably arranged inside the support bar 321. The two groups of C-shaped positioning seats 322 are respectively threadedly connected to both ends of the bidirectional lead screw 323.

[0069] The pre-bending member 33 includes multiple groups of externally convex rollers 333 and internally concave rollers 332 that are pressed against each other. Through continuous rolling of multiple groups of externally convex rollers 333 and internally concave rollers 332, the two sides of the aluminum plate are continuously bent upward and warped; the pre-bending member 33 further includes a vertical plate 331 fixedly arranged on the top of the frame 31. The externally convex rollers 333 and internally concave rollers 332 are rotationally arranged symmetrically up and down in the vertical plate 331. A first clearance groove 336 is provided in the middle of the externally convex roller 333, a deformation convex groove 335 is provided on the outer wall of the externally convex roller 333, deformation concave grooves 334 are provided on both sides of the inner wall of the internally concave roller 332, and the inclination angles of multiple groups of deformation convex grooves 335 and deformation concave grooves 334 gradually increase;

[0070] The forming rolling member 34 includes multiple continuously and symmetrically arranged shrinking rollers 342, and shrinking shaping grooves 344 are provided on the outer walls of the shrinking rollers 342. Multiple groups of shrinking shaping grooves 344 continuously shrink inward, so that the two sides of the pre-bent aluminum plate are further shrunk through the shrinking shaping grooves 344 until the two sides come close together to enclose a tubular shape; the forming rolling member 34 further includes a horizontal plate 341 fixedly arranged on the top of the frame 31. The shrinking rollers 342 are rotationally arranged on the horizontal plate 341, and a forming motor 343 for driving the rotation of the shrinking rollers 342 is fixedly arranged at the bottom of the horizontal plate 341

[0071] The forming discharging member 35 is used for discharging the formed aluminum-plastic pipe; the forming discharging member 35 includes a forming carrier plate 351, forming discharging pressure rollers 352, a first adjusting block 353, and a second adjusting block 354. The forming carrier plate 351 is fixedly arranged on the top of the frame 31. An X-axis adjusting screw is installed between the second adjusting block 354 and the first adjusting block 353, and a Y-axis adjusting screw is installed between the second adjusting block 354 and the forming discharging pressure rollers 352. Multiple groups of forming discharging pressure rollers 352 are distributed in an annular array.

[0072] A deviation rectifying mechanism 5 is installed on the top of the forming rolling member 34. The deviation rectifying mechanism 5 includes a positioning deviation rectifying strip 52 suspended above the tops of multiple shrinking rollers 342. The width of the positioning deviation rectifying strip 52 is in a shrinking shape along the moving direction of the aluminum plate. Width-constant deviation rectifying positioning grooves 53 are provided at the bottoms of both sides of the positioning deviation rectifying strip 52. When the aluminum plate moves, both sides thereof abut against the inner tops of the deviation rectifying positioning grooves 53, so that the heights of both sides of the aluminum plate are level, ensuring that the weld is at the top center when the aluminum plate finally encloses a tubular shape, which is convenient for welding;

[0073] A gantry 51 is suspended above the top of the horizontal plate 341. The positioning deviation rectifying strip 52 is fixedly installed at the bottom of the gantry 51. An arc-shaped groove 55 is provided at the bottom of the positioning deviation rectifying strip 52. A second clearance groove is formed between the arc-shaped groove 55 and two groups of shrinking rollers 342 that are symmetrically arranged on the left and right; vertical grooves 56 are provided at the front end and the middle and rear sections of the arc-shaped groove 55, and positioning pressure wheels 57 are rotatably connected inside the vertical grooves 56; a third clearance groove 54 adapted to the shrinking rollers 342 is provided inside the shrinking shaping grooves 344.

[0074] The device passes the plastic pipe through the front end of the frame 31. The plastic pipe sequentially passes through the first clearance groove 336 and the second clearance groove, and passes out from the end of the frame 31. Then, the aluminum strip is passed through the feeding positioning member 32. By rotating the bidirectional lead screw 323, the contact rollers 325 inside the C-shaped positioning seat 322 are brought into contact with both sides of the aluminum strip, so that the aluminum strip can be fed in the center. Then, the aluminum strip sequentially passes between a plurality of concave rollers 332 and convex rollers 333, and the two sides of the aluminum strip are continuously roll-pressed by the deformation grooves 334 and deformation protrusions 335 with gradually increasing inclination angles, so that the two sides of the aluminum strip are gradually upturned upwards; then the aluminum strip enters the forming roll-pressing member 34. At this time, the top of both sides of the aluminum strip is inserted into the deviation-correcting positioning groove 53, and abuts against the inner top of the deviation-correcting positioning groove 53. At this time, the aluminum strip is continuously shrink-shaped through the shrink shaping grooves 344 in a plurality of continuous shrink rollers 342. Finally, the aluminum strip is bent into a tubular shape and held on the outer surface of the plastic pipe. And under the action of the deviation-correcting positioning groove 53, the two sides of the aluminum strip maintain the same height during the bending process, so that the final aluminum strip weld is located at the top center position, making the weld a straight line. At this time, the weld is welded by a welding device.

[0075] An aluminum strip edge-cutting mechanism 1 for trimming and width-setting both sides of the aluminum strip is provided at the feeding end of the main body 3 of the forming machine. The aluminum strip edge-cutting mechanism 1 includes a support part 11 and loading parts 12 movably installed on both sides of the top of the support part 11. Cutting knife parts 13 are installed in both loading parts 12 on both sides;

[0076] The cutting knife part 13 includes an upper pressing knife 131 and a lower pressing knife 132 which are oppositely arranged up and down. A material feeding gap 133 is formed inside the upper pressing knife 131 and the lower pressing knife 132, and a waste gap 135 is formed outside the upper pressing knife 131 and the lower pressing knife 132. The side of the material feeding gap 133 opposite to the waste gap 135 is vertically offset to form a cutting area. The aluminum strip passes through the cutting area and is cut to form a middle material and waste on both sides.

[0077] The support part 11 includes a support bottom plate 111 and guide slide rails 112 fixedly welded to both sides of the top of the support bottom plate 111. A bidirectional lead screw 113 is rotatably arranged in the middle of the support bottom plate 111;

[0078] The loading part 12 includes an installation frame 121, a positioning slider 122 and a connecting block 123 fixedly welded to the bottom of the installation frame 121. The positioning slider 122 is slidably arranged on the outer wall of the guide slide rail 112. The two connecting blocks 123 on both sides are respectively threadedly connected to the outer surfaces of both ends of the bidirectional lead screw 113;

[0079] Support seats 124 are fixedly assembled on the upper and lower inner sides of the installation frame 121 respectively, and a cushion block 125 is arranged between the two groups of support seats 124. Servo motors 134 are fixedly installed on the outer sides of the upper pressing knife 131 and the lower pressing knife 132 respectively, and the servo motors 134 are fixedly assembled in the support seats 124.

[0080] Before the aluminum strip enters the main body 3 of the forming machine, the aluminum strip trimming mechanism 1 is set to trim both sides of the aluminum strip to ensure that the width of the aluminum strip meets the requirements. At the same time, the two sides of the aluminum strip are made flat, which is convenient for welding operations. In this solution, first, by rotating the bidirectional lead screw 113, the two installation frames 121 move towards or away from each other along the guiding slide rail 112, so as to change the distance between the two support seats 124 on both sides, making the width of the entire material feeding gap 133 the same as the width of the required aluminum strip. Then the aluminum strip is inserted from the middle and continuously trimmed through the trimming area between the upper pressing knife 131 and the lower pressing knife 132. The trimmed waste is discharged from the waste gaps 135 on both sides, and the finished product moves forward through the material feeding gap 133 and enters the main body 3 of the forming machine for making aluminum-plastic pipes.

[0081] On both sides of the discharge end of the aluminum strip trimming mechanism 1, a waste collection mechanism 2 for winding up the redundant aluminum strip after trimming is arranged. The waste collection mechanism 2 includes a waste rack 21 and a waste traction part 22 installed on the top of the waste rack 21. A waste cutting part 24 is installed inside the waste rack 21, and an inclined material guiding hopper 23 is arranged at the bottom of the waste cutting part 24;

[0082] The waste cutting part 24 includes a mounting position 244 fixedly arranged inside the waste rack 21. A fixed cutting knife 245 is fixedly installed in the mounting position 244. A cylindrical tool holder 242 is rotatably arranged inside the waste rack 21. A cutting motor 241 for driving the rotation of the cylindrical tool holder 242 is fixedly assembled on the back of the waste rack 21. A plurality of rotary cutting knives 243 distributed in an annular array are fixedly assembled on the outer wall of the cylindrical tool holder 242. The plurality of rotary cutting knives 243 follow the cylindrical tool holder 242 to rotate to the fixed cutting knife 245, and the aluminum strip passing through the surface of the fixed cutting knife 245 is cut into aluminum sheets of equal length by the side of the rotary cutting knife 243 opposite to the fixed cutting knife 245.

[0083] The waste traction part 22 includes a support plate 221 fixedly arranged on the top of the waste rack 21. An auxiliary pressure wheel 224 and a driving pressure wheel 223 are rotatably arranged on the outer wall of the support plate 221. A driving motor 222 is fixedly arranged on the support plate 221. A transmission belt 229 is installed between the driving motor 222 and the driving pressure wheel 223. A downwardly penetrating guide tube 225 is arranged at the bottom of the side of the auxiliary pressure wheel 224 opposite to the driving pressure wheel 223, and an adaptive extrusion adjustment part is arranged on the side of the auxiliary pressure wheel 224;

[0084] The adaptive extrusion adjusting member includes a fixing strip 226 fixedly arranged at one end of the support plate 221. A support arm 227 is fixedly arranged in the fixing strip 226. A support shaft bearing-connected to the auxiliary pressing wheel 224 is fixedly arranged at the end of the support arm 227. A memory spring 228 is arranged on the outer wall of the support arm 227 between the support shaft and the fixing strip 226.

[0085] By installing the waste collecting mechanism 2 on both sides of the discharge end of the aluminum strip edge trimming mechanism 1, the waste discharged through the waste gap 135 after cutting enters between the auxiliary pressing wheel 224 and the driving pressing wheel 223. At this time, under the action of the memory spring 228, the auxiliary pressing wheel 224 squeezes the waste aluminum strip tightly against the driving pressing wheel 223. Then, under the action of the driving pressing wheel 223, the aluminum strip passes downward through the guiding tube 225 and enters the interior of the waste rack 21. At this time, the aluminum strip moves downward from the surface of the fixed cutter 245. At this time, the cutting motor 241 drives the rotary cutter 243 to rotate. When the rotary cutter 243 rotates to the fixed cutter 245, the aluminum strip passing through the surface of the fixed cutter 245 is cut off. The cutting motor 241 and the driving motor 222 rotate at a constant speed, so that the aluminum strip is fed at a uniform speed. Then, the aluminum strip is cut into aluminum sheets of equal length by a plurality of rotary cutters 243, which is convenient for waste collection. And by changing the rotation speed of the cutting motor 241, the length of the cut aluminum sheets can be changed.

[0086] A high-speed aluminum pipe traction mechanism 4 for discharging the formed aluminum-plastic pipe is installed at the discharge end of the main body 3 of the molding machine. The high-speed aluminum pipe traction mechanism 4 includes a machine box 41 and a machine cover 42 rotatably arranged on the top of the machine box 41. A circulating traction chain 45 is assembled inside the machine box 41. A traction clamping member 46 is installed on the outer wall of the circulating traction chain 45. After being clamped by the traction clamping member 46, the aluminum-plastic pipe is horizontally tractioned by the circulating traction chain 45.

[0087] The traction clamping member 46 includes a support rail 461 and clamping rings 467 slidably arranged on both sides of the top of the support rail 461. A lower positioning wheel 466 and side positioning wheels 463 are respectively assembled at the bottom and on both sides of the support rail 461. An upper positioning wheel 468 is installed on the side surface of the clamping ring 467. Chain connection parts 462 are integrally formed at both ends of the bottom of the support rail 461.

[0088] A support frame 43 is fixedly installed inside the machine box 41. Driving sprockets 48 are rotatably arranged inside both ends of the support frame 43. The circulating traction chain 45 is installed between the two driving sprockets 48 at both ends. A blanking motor 47 for driving a group of driving sprockets 48 to rotate is fixedly assembled at one end of the support frame 43.

[0089] Positioning slide rails 44 are fixedly assembled on both sides of the support frame 43. The lower positioning wheels 466 roll along the inner side of the positioning slide rails 44. The upper positioning wheels 468 roll along the outer side of the positioning slide rails 44. The side positioning wheels 463 roll along the inside of the positioning slide rails 44.

[0090] A walking servo 465 is installed on the support rail 461. A fixture mounting seat 464 is fixedly assembled on the walking servo 465. A clamping ring 467 is fixedly assembled on the fixture mounting seat 464. An upper positioning wheel 468 is rotatably arranged on the fixture mounting seat 464. A traction spring 469 is fixedly connected between one side of the upper positioning wheel 468 and the fixture mounting seat 464. The upper positioning wheel 468 is adaptively twisted through the traction spring 469.

[0091] After passing the welded aluminum-plastic pipe through between the chassis 41 and the machine cover 42, the walking servo 465 is used to drive two groups of clamping rings 467 to move towards the middle to clamp the aluminum-plastic pipe, thereby clamping and fixing the aluminum-plastic pipe. Then the clamping rings 467 move forward along with the circulating traction chain 45, thus pulling the aluminum-plastic pipe to move. When the clamping rings 467 move to the end of the chassis 41, the walking servo 465 drives the two groups of clamping rings 467 to separate. At this time, the clamping rings 467 move downward along with the circulating traction chain 45, and then return to the front end of the chassis 41 to clamp the aluminum-plastic pipe again, and the aluminum-plastic pipe is taken out from the other end of the chassis 41, so as to realize the cyclic clamping and movement of the aluminum-plastic pipe by multiple clamping rings 467, thereby realizing the traction movement of the aluminum-plastic pipe.

[0092] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum-plastic pipe forming machine with a deviation correction function, comprising a forming machine main body (3), characterized in that, The forming machine body (3) comprises a frame (31) and a pre-bending part (33) and a forming rolling part (34) installed on the frame (31); A deflection correction mechanism (5) is installed on the top of the forming rolling part (34), and the deflection correction mechanism (5) includes a positioning deflection correction strip (52) suspended on the top of multiple shrinking rollers (342), and the bottom of both sides of the positioning deflection correction strip (52) are provided with deflection correction positioning grooves (53) with constant width. The width of the positioning deflection correction strip (52) is contracted along the moving direction of the aluminum plate, so that the two sides of the aluminum plate are tightly attached to the inner wall of the deflection correction calibration groove (23) when they are continuously bent inward and closed, thereby ensuring the left-right symmetry of the aluminum plate and facilitating welding.

2. The aluminum-plastic pipe forming machine with a deviation rectification function according to claim 1, characterized in that: The pre-bending member (33) comprises a vertical plate (331) fixedly arranged on the top of the frame (31), and a plurality of groups of opposing convex rollers (333) and concave rollers (332) are symmetrically rotatably arranged on the vertical plate (331), and the two sides of the aluminum plate are continuously bent upward and tilted by continuous rolling of the plurality of groups of convex rollers (333) and concave rollers (332), and a first air avoidance groove (336) is provided in the middle of the convex roller (333), and a deformation convex groove (335) is provided on the outer wall of the convex roller (333), and deformation grooves (334) are provided on both sides of the inner wall of the concave roller (332), and the inclination angles of the plurality of groups of deformation convex grooves (335) and the deformation grooves (334) are gradually increased.

3. A plastic-aluminum pipe forming machine with a deviation rectification function according to claim 1, characterized in that: The forming rolling element (34) comprises a horizontal plate (341) fixedly arranged on the top of the frame (31), and a plurality of shrinking rollers (342) are rotatably arranged on the horizontal plate (341), and shrinking shaping grooves (344) are provided on the outer walls of the shrinking rollers (342). The plurality of groups of shrinking shaping grooves (344) shrink inward continuously, so that the two sides of the pre-bent aluminum plate further shrink through the shrinking shaping grooves (344) until the two sides are close together to form a tube. A forming motor (343) for driving the shrinking rollers (342) to rotate is fixedly arranged at the bottom of the horizontal plate (341).

4. The plastic-aluminum pipe forming machine with a rectifying function according to claim 3, characterized in that: A gantry (51) is suspended on the top of the horizontal plate (341), the positioning and correcting strip (52) is fixedly installed on the bottom of the gantry (51), an arc-shaped groove (55) is arranged at the bottom of the positioning and correcting strip (52), and a second air-avoiding groove is formed between the arc-shaped groove (55) and the two groups of shrinking rollers (342) symmetrically arranged on the left and right; The front end and the middle and rear sections of the arc-shaped groove (55) are provided with vertical grooves (56), and the interior of the vertical groove (56) is rotatably connected to a positioning pressing wheel (57); A third air-avoiding groove (54) adapted to the shrinking roller (342) is provided inside the shrinking and shaping groove (344).

5. The plastic-aluminum pipe forming machine with a rectifying function according to claim 1, characterized in that: A feeding positioning member (32) is installed at the front end of the frame (31). The feeding positioning member (32) includes a support bar (321) fixedly arranged at the front end of the frame (31). C-shaped positioning seats (322) are slidably arranged on both sides of the top of the support bar (321). A bidirectional lead screw (323) is rotatably arranged inside the support bar (321). The two groups of C-shaped positioning seats (322) are respectively threadedly connected to both ends of the bidirectional lead screw (323).

6. The plastic-aluminum pipe forming machine with a deviation rectification function according to claim 5, characterized in that: A forming and discharging member (35) is installed at the end of the frame. The forming and discharging member (35) includes a forming carrier plate (351) for installing a welding machine. A plurality of forming discharging pressing rollers (352) distributed in an annular array are installed on the forming carrier plate (351). A blanking hole is formed between the plurality of forming discharging pressing rollers (352).

7. A plastic-aluminum pipe forming machine with a deviation rectification function according to claim 1, characterized in that: An aluminum strip trimming mechanism (1) for trimming and sizing the two sides of an aluminum strip is arranged at the feeding end of the molding machine body (3). Scrap collecting mechanisms (2) for winding up the redundant aluminum strip after cutting are arranged on both sides of the discharging end of the aluminum strip trimming mechanism (1). A high-speed aluminum pipe traction mechanism (4) for blanking the formed aluminum-plastic pipe is installed at the discharging end of the molding machine body (3).

8. A plastic-aluminum pipe forming machine with a deviation rectification function according to claim 7, characterized in that: The aluminum strip trimming mechanism (1) includes a support part (11) and loading parts (12) movably installed on both sides of the top of the support part (11). Cutting knife parts (13) are installed in both of the loading parts (12) on both sides. The cutting knife part (13) includes an upper pressing knife (131) and a lower pressing knife (132) arranged oppositely up and down. A material feeding gap (133) is formed inside the upper pressing knife (131) and the lower pressing knife (132). A scrap gap (135) is formed outside the upper pressing knife (131) and the lower pressing knife (132). The side of the material feeding gap (133) opposite to the scrap gap (135) is vertically offset up and down to form a trimming area. The aluminum strip passes through the trimming area and is trimmed to form a middle finished product and scraps on both sides.

9. A plastic-aluminum pipe forming machine with a deviation rectification function according to claim 7, characterized in that: The scrap collecting mechanism (2) includes a scrap rack (21) and a scrap traction member (22) installed on the top of the scrap rack (21). A scrap cutting member (24) is installed inside the scrap rack (21). An inclined material guiding hopper (23) is arranged at the bottom of the scrap cutting member (24).

10. A plastic-aluminum pipe forming machine with a deviation rectification function according to claim 7, characterized in that: The high-speed aluminum pipe traction mechanism (4) includes a machine case (41) and a circulating traction chain (45) assembled in the machine case. A traction clamping member (46) is installed on the outer wall of the circulating traction chain (45). After being clamped by the traction clamping member (46), the aluminum-plastic pipe is horizontally tractioned by the circulating traction chain (45).

Images