A forming device for producing harmonica tube with mold core self-checking function

Abstract

The application discloses a forming equipment with a mold core self-checking function for producing a harmonica tube, which comprises a mold, a conveyor, a rotating shaft with clamping pieces, a turnover chuck and a detection module. The application can analyze the cross section of the profile after cutting to determine whether the mold core inside the mold has a quality reduction. The detection process is timely and accurate. If the mold core quality is reduced, the aluminum rod can be extracted in time to avoid extruding the remaining aluminum rod into an unqualified mold, thereby reducing the product rework caused by mold quality, reducing production costs, and avoiding the situation that the aluminum rod is stranded in the extrusion chamber for cooling. The aluminum rod does not need to be heated again during subsequent secondary use, avoiding repeated processing, improving work efficiency, and also flattening the profile for the first time, which can ensure that the profile deformation force direction and the tension direction coincide to improve the profile levelness.

Description

Technical Field

[0001] This invention relates to the field of harmonica tube manufacturing technology, specifically to a molding equipment for harmonica tube production with a mold core self-inspection function. Background Technology

[0002] Harmonica tubes, also known as heat exchanger tubes, are named for their harmonica-like end face shape. They are essential aluminum alloy profiles in heat exchange systems for automobiles, home air conditioning, and other applications. During use, the harmonica tube can be filled with a cooling medium and serves as a fluid conduit for the heat exchange system. To improve the thermal conductivity of the harmonica tube, it is often designed with a thin-walled and porous structure.

[0003] Harmonica tubes typically have complex cross-sectional shapes, high dimensional accuracy, and are difficult to produce. After prolonged use, the quality of the mold core will decrease. Currently, timed inspections or pre-inspections are usually used to determine whether the quality of the mold core of the harmonica tube forming equipment is up to standard. However, the above inspection methods have a certain lag. Generally, when the quality of the mold core is found to be unqualified, the aluminum rod has already been completely extruded into the product. Moreover, this unqualified product cannot be used directly and needs to be reworked, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The purpose of this invention is to provide a molding equipment for harmonica tube production with a mold core self-inspection function, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a molding equipment for producing harmonica tubes with a mold core self-inspection function, comprising a mold and a conveyor, wherein the conveyor is used to transport the profile extruded by the mold, and further comprising a feeding cylinder, wherein the feeding cylinder comprises a left shell and a right shell, wherein after the left shell and the right shell are spliced ​​together, the middle area is a feeding channel; and after the left shell and the right shell are opened, the middle area is a material discharge channel.

[0006] And a rotating shaft with clamps, the clamps being circumferentially distributed on the outer wall of the rotating shaft, and the area between two adjacent clamps being an aluminum rod receiving area, which is used to store aluminum rods conveyed through the dropping channel. When the clamps rotate, the aluminum rods in the aluminum rod receiving area will be conveyed into the insulation box.

[0007] And a flipping chuck, which is used to flip the product, and the flipped product is conveyed to the leveling part for leveling.

[0008] The system also includes a detection module for inspecting the products extruded through the mold, including inspecting the cross-section and surface of the products. When the inspection results are qualified, the aluminum rod continues to be fed into the mold. When the inspection results are unqualified, the aluminum rod that was not fed into the mold is quickly fed into the heat preservation box.

[0009] Furthermore, the left shell and the right shell are respectively fixedly connected to the connecting frame. The connecting frame is sleeved on the bidirectional lead screw. When the bidirectional lead screw rotates, it drives the two connecting frames to rotate in opposite directions at the same time. The bidirectional lead screw is rotatably disposed on the inner wall of the support frame, and the inner wall of the support frame is provided with a guide rod that penetrates the connecting frame. One end of the bidirectional lead screw is fixedly connected to the output shaft of the drive motor.

[0010] Furthermore, the outer wall of the clamp is provided with a buffer member, which is used to buffer the impact force generated on the clamp when the aluminum rod falls, and the end of the clamp is provided with a sealing member, which is used to fill the gap between the clamp and the insulation box.

[0011] Furthermore, the buffer component includes a buffer plate and a buffer spring. The buffer plate is hinged to the clamping piece, and the buffer spring is disposed between the buffer plate and the clamping piece. The buffer plate located in the same aluminum rod receiving area is V-shaped.

[0012] The sealing element includes a rubber airbag, which is disposed at the end of the clamp. The top of the insulation box is provided with a through arc-shaped discharge port. When the clamp is in contact with the inner wall of the arc-shaped discharge port, the rubber airbag completely fills the gap between the clamp and the arc-shaped discharge port.

[0013] Furthermore, the flipping chuck includes a finger cylinder, an electric telescopic rod, and an adjusting component. The finger cylinder is used to clamp the formed profile. The finger cylinder is located at the end of the electric telescopic rod. The electric telescopic rod is used to drive the finger cylinder to move. The adjusting component is used to drive the finger cylinder to rotate and change the angle of the finger cylinder.

[0014] Furthermore, the steering component includes an arc-shaped bracket and an annular outer ring. The annular outer ring is rotatably sleeved on the outer wall of the arc-shaped bracket. One end of the electric telescopic rod passes through the arc-shaped bracket and is fixedly connected to the annular outer ring. The inner wall of the arc-shaped bracket is provided with an arc-shaped guide groove that matches the electric telescopic rod. The inner wall of the annular outer ring is provided with an arc-shaped rack. The arc-shaped rack meshes with a drive gear. The drive gear is sleeved on the outer wall of the output shaft of the second drive motor.

[0015] Furthermore, the leveling component includes a leveling roller and a leveling platform. The top of the leveling platform is provided with a support plate, and the side wall of the support plate is provided with a slidably connected support block. The leveling roller is rotatably connected to the support block, and the distance between the leveling roller and the leveling platform is adjusted when the support block is displaced.

[0016] Furthermore, the detection module includes a first vision detection device, a second vision detection device, and a third vision detection device. The first vision detection device is used to acquire and detect images of the upper surface of the profile extruded by the mold. The second vision detection device is used to acquire and detect images of the cut surface of the profile after cutting. The third vision detection device is used to acquire and detect images of the lower surface of the profile. The acquired image information is transmitted to a calculation unit, which calculates the detection result based on the acquired images and transmits the detection result to an instruction unit. The instruction unit is used to control the product processing according to the detection result. At the same time, the acquired image of the profile's cross-section can be transmitted to a prediction unit, which is used to predict the wear trend of the mold core.

[0017] Furthermore, the specific process of the detection module is as follows:

[0018] Step 1: Use detection device 1 to acquire images of the upper surface of the profile extruded from the mold and check for defects on its surface; use detection device 2 to acquire images of the cross-section of the cut profile and check for wear of the inner core of the mold according to the wall thickness of the product; use detection device 3 to acquire images of the lower surface of the profile and check for defects on its surface.

[0019] Step 2: If one or more of the test results in Step 1 are "yes", then issue a command to detach the aluminum rod and quickly transfer the aluminum rod that has not yet been transferred to the mold into the heat preservation box.

[0020] Step 3: If all the test results in Step 1 are "No", then issue an order to continue extruding the aluminum profile and continue to feed the aluminum rod into the mold.

[0021] Step 4: Obtain historical cross-sectional images of aluminum profiles, plot the changes in their wall thickness as curves, and compare them in chronological order to obtain the wall thickness change curves in the profiles. Analyze the trend of these changes and predict the wear trend of the mold core.

[0022] Furthermore, it also includes a cutting machine and a cutting blade, wherein the cutting machine is used to quantitatively cut the profiles extruded through the mold, and the cutting blade is used to cut aluminum rods that have not entered the mold.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0024] 1. This invention analyzes the cross-section of the cut profile to determine whether the core inside the mold has suffered quality degradation. The detection process is timely and highly accurate. If core quality degradation is found, the aluminum rod can be promptly removed, preventing the remaining aluminum rod from being squeezed into a defective mold. This reduces the likelihood of product rework due to mold quality issues, lowers production costs, and also prevents the aluminum rod from remaining in the extrusion chamber and cooling down. Subsequent secondary use does not require reheating of the aluminum rod, avoiding repeated processing and improving work efficiency. Furthermore, it allows for initial leveling of the profile, ensuring that the deformation and tensile forces coincide, thus improving the profile's levelness. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0027] Figure 2 This is a three-dimensional structural schematic diagram of the entire invention from another angle;

[0028] Figure 3 This is a three-dimensional structural diagram of the material conveying cylinder of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram showing the distribution of the left and right shells of the present invention;

[0030] Figure 5 This is a three-dimensional cross-sectional structural diagram of the clip of the present invention;

[0031] Figure 6 This is a schematic diagram of the front cross-sectional structure of the closed left and right shells of the present invention;

[0032] Figure 7 This is a schematic diagram of the main cross-sectional structure of the left and right shells of the present invention when they are open;

[0033] Figure 8 This is a three-dimensional structural schematic diagram of the clip of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the leveling roller of the present invention;

[0035] Figure 10 This is the present invention. Figure 9 Enlarged structural diagram at point A;

[0036] Figure 11 This is the intended distribution of force direction when the profile of the present invention is stretched;

[0037] In the diagram: 1. Mold; 2. Conveyor;

[0038] 3. Feeding cylinder; 31. Left shell; 32. Right shell; 33. Feeding channel; 34. Discharge channel; 35. Connecting frame; 36. Two-way lead screw; 37. Support frame; 38. Guide rod; 39. Drive motor one;

[0039] 4. Clamping plate; 41. Aluminum rod receiving area; 42. Insulation box; 43. Buffer plate; 44. Buffer spring; 45. Rubber airbag; 46. Arc-shaped discharge port;

[0040] 5. Rotating shaft; 51. Finger cylinder; 52. Electric telescopic rod; 53. Arc-shaped bracket; 54. Annular outer ring; 55. Arc-shaped guide groove; 56. Arc-shaped rack; 57. Drive gear; 58. Drive motor II;

[0041] 61. Leveling roller; 62. Leveling platform; 63. Support plate; 64. Support block;

[0042] 71. Visual inspection device one; 72. Visual inspection device two; 73. Visual inspection device three;

[0043] 8. Cutting machine; 9. Cutting blade. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figures 1-11 This invention provides a technical solution: a molding equipment for producing harmonica tubes with a self-inspection function of the mold core, including a mold 1 and a conveyor 2. The conveyor 2 is used to transport the profile extruded by the mold 1. It also includes a feeding cylinder 3. One end of the feeding cylinder 3 is connected to the feed port of the mold 1, and the other end is provided with a push rod. The push rod can push the aluminum rod in the feeding cylinder 3. The feeding cylinder 3 includes a left shell 31 and a right shell 32. After the left shell 31 and the right shell 32 are spliced, the middle area is the feeding channel 33. After the left shell 31 and the right shell 32 are opened, the middle area is the dropping channel 34.

[0046] And a rotating shaft 5 with clamping plates 4, the clamping plates 4 are circumferentially distributed on the outer wall of the rotating shaft 5, and the area between two adjacent clamping plates 4 is an aluminum rod receiving area 41, which is used to store aluminum rods conveyed through the dropping channel 34. When the clamping plates 4 rotate, the aluminum rods in the aluminum rod receiving area 41 will be conveyed to the heat preservation box 42. One end of the rotating shaft 5 is fixedly connected to the output shaft of the drive motor 3.

[0047] And a flipping chuck, which is used to flip the product, and the flipped product is conveyed to the leveling part for leveling.

[0048] The system also includes a detection module for inspecting the product extruded through the mold 1, including inspecting the cross-section and surface of the product. When the inspection result is qualified, the aluminum rod continues to be fed into the mold 1. When the inspection result is unqualified, the aluminum rod that has not been fed into the mold 1 is quickly fed into the heat preservation box 42.

[0049] The left shell 31 and the right shell 32 are respectively fixedly connected to the connecting frame 35. The connecting frame 35 is sleeved on the bidirectional lead screw 36. When the bidirectional lead screw 36 rotates, it drives the two connecting frames 35 to rotate simultaneously in opposite directions. The bidirectional lead screw 36 is rotatably mounted on the inner wall of the support frame 37, and the inner wall of the support frame 37 is provided with a guide rod 38 that penetrates the connecting frame 35. One end of the bidirectional lead screw 36 is fixedly connected to the output shaft of the drive motor 39. Specifically, when the drive motor 39 is started, it drives the bidirectional lead screw 36 to rotate, and the inner wall of the connecting frame 35 is provided with a guide rod 38 that matches the bidirectional lead screw 36. The lead screw nut is such that when the bidirectional lead screw 36 rotates, it will drive the two connecting frames 35 to move in opposite directions at the same time. At this time, the connecting frame 35 can drive the left shell 31 and the right shell 32 to move, opening or closing the left shell 31 and the right shell 32. When the left shell 31 and the right shell 32 are open, and the distance between the left shell 31 and the right shell 32 is greater than that between the cutting blade 9, the cutting blade 9 can be controlled to cut the aluminum rod. The cut aluminum rod can fall directly into the aluminum rod receiving area 41 between the two clamping plates 4. Moreover, there is no need to move the left shell 31 and the right shell 32 axially to adjust the distance between the conveying cylinder and the mold 1, saving the length space of the equipment.

[0050] The outer wall of the clamping plate 4 is provided with a buffer element, which is used to buffer the impact force generated on the clamping plate 4 when the aluminum rod falls. The end of the clamping plate 4 is provided with a sealing element. The buffer element includes a buffer plate 43 and a buffer spring 44. The buffer plate 43 is hinged to the clamping plate 4, and the buffer spring 44 is located between the buffer plate 43 and the clamping plate 4. The buffer plate 43 located in the same aluminum rod receiving area 41 is V-shaped. Specifically, when the aluminum rod falls, it will first contact the buffer plate 43. After the buffer plate 43 is subjected to pressure, the buffer spring 44 will deform. At this time, the impact force when the aluminum rod falls can be offset. In addition, the buffer plates 43 on both sides are V-shaped, so under the action of the compression spring, they will generate a clamping force on the aluminum rod in the middle, which has a certain stability during the conveying process.

[0051] The sealing element is used to fill the gap between the clamp 4 and the insulation box 42; the sealing element includes a rubber air bladder 45, which is located at the end of the clamp 4. The top of the insulation box 42 is provided with a through arc-shaped discharge port 46. When the clamp 4 is in contact with the inner wall of the arc-shaped discharge port 46, the rubber air bladder 45 completely fills the gap between the clamp 4 and the arc-shaped discharge port 46. Specifically, when the aluminum rod is located in the aluminum rod receiving area 41, the drive motor is started to rotate. When shaft 5 rotates, it drives clamping plate 4 to rotate, which in turn drives aluminum rod receiving area 41 to rotate, gradually aligning it with the discharge end of arc-shaped discharge port 46 until the aluminum rod can be conveyed from arc-shaped discharge port 46 into the insulation box 42. At this point, the aluminum rod can be quickly discharged and the aluminum rod can be kept warm. During the conveying process, rubber airbag 45 will fill the gap between clamping plate 4 and the inner wall of arc-shaped discharge port 46 to ensure the airtightness between the two, thereby ensuring that the temperature inside the insulation box 42 will not drop rapidly.

[0052] The flipping chuck includes a finger cylinder 51, an electric telescopic rod 52, and a steering component. The finger cylinder 51 is used to clamp the formed profile and is located at the end of the electric telescopic rod 52. The electric telescopic rod 52 is used to drive the finger cylinder 51 to move. The steering component is used to drive the finger cylinder 51 to rotate and change its angle. The steering component includes an arc-shaped bracket 53 and an annular outer ring 54. The annular outer ring 54 is rotatably sleeved on the outer wall of the arc-shaped bracket 53. One end of the electric telescopic rod 52 passes through the arc-shaped bracket 53 and is fixedly connected to the annular outer ring 54. The inner wall of the arc-shaped bracket 53 is provided with an arc-shaped guide groove 55 that matches the electric telescopic rod 52. The inner wall of the annular outer ring 54 is provided with an arc-shaped rack 56, which meshes with a drive gear 57. The drive gear 57 is sleeved on a drive motor. 8. Output shaft outer wall; Specifically, when it is necessary to flip the profile, the electric telescopic rod 52 is used to drive the finger cylinder 51 to move to the profile, and the two gripping claws of the finger cylinder 51 are located on the upper and lower sides of the profile. Then, the finger cylinder 51 is controlled to clamp and fix the profile. After it is completely fixed, the drive motor 58 can be started to drive the drive gear 57 to rotate. The drive gear 57 drives the meshing arc rack 56 to rotate, which can drive the outer ring 54 to rotate. The outer ring 54 will drive the electric telescopic rod 52 to rotate, so that the finger cylinder 51 and the profile can rotate synchronously. When the outer ring 54 rotates more than 90 degrees, the profile can be flipped. In a preferred embodiment, after the outer ring 54 drives the profile to rotate 180 degrees, the finger cylinder 51 releases the profile and the electric telescopic rod 52 retracts. At this time, the profile has been flipped.

[0053] The leveling component includes a leveling roller 61 and a leveling platform 62. The top of the leveling platform 62 is provided with a support plate 63, and the side wall of the support plate 63 is provided with a slidably connected support block 64. The leveling roller 61 is rotatably connected to the support block 64. When the support block 64 is displaced, the distance between the leveling roller 61 and the leveling platform 62 is adjusted. The support block 64 can be fixed by screws. When the position needs to be adjusted, the position can be changed and then fixed with screws again, or it can be controlled by electrical means, such as a cylinder, which drives the support block 64 to move up and down when it extends and retracts. Any method that can realize the up and down displacement of the support block 64 is acceptable.

[0054] The detection module includes a first vision detection device 71, a second vision detection device 72, and a third vision detection device 73. The first vision detection device 71 is used to acquire and detect images of the upper surface of the profile extruded by the mold 1. The second vision detection device 72 is used to acquire and detect images of the cut surface of the profile after cutting. The third vision detection device 73 is used to acquire and detect images of the lower surface of the profile. The acquired image information is transmitted to the calculation unit, which calculates the detection result based on the acquired images and transmits the detection result to the instruction unit. The instruction unit is used to control the product processing process based on the detection result. At the same time, the acquired image of the cross-section of the profile can be transmitted to the prediction unit, which is used to predict the wear trend of the mold core.

[0055] The specific process of the detection module is as follows:

[0056] Step 1: Use a detection device to capture images of the upper surface of the profile extruded from mold 1 and detect whether there are defects on its surface. In a preferred embodiment, the detection device includes a camera, which is set between mold 1 and cutting machine 8. The extruded profile is first inspected on its upper surface. If the same wear point appears at the same position on the upper surface of the profile for a long time, it is determined that there is a quality problem inside the mold core. The "long time" can be automatically set according to historical data or manually set by the worker. For example, if a certain wear point appears continuously, such as a straight line like "————", or a regular "--------" interval, or other regularly appearing wear points, it can be determined that there is a defect on its surface. The detection device will then output "yes".

[0057] The detection device 2 acquires images of the cross-section of the cut profile and detects whether the inner core of mold 1 is worn based on the wall thickness of the product. In a preferred embodiment, the detection device 2 includes a camera 2 and a cylinder. The cylinder is used to move the camera 2, and the camera is located behind the cutting machine 8. That is, the profile passes through the cutting machine 8 first and then the camera 2. After the cutting machine 8 cuts the profile, the cylinder moves the camera downward to a position horizontal with the end of the profile. At this time, the cross-section of the profile is acquired, and the acquired images are analyzed. Since the cross-section of the harmonica tube has multiple holes, the wall thickness between each hole needs to be precisely controlled. At this time, the wall thickness between each hole can be acquired and compared with the standard size. If the hole is large and the side wall is thin, it means that the wear of the inner wall of the mold core has reached a certain level. If the wear exceeds the acceptable error range, the mold core needs to be replaced or repaired. It is then determined that the mold core of mold 1 is worn. At this time, the detection device 2 outputs a "yes" detection result.

[0058] The detection device 3 acquires images of the lower surface of the profile and detects whether there are defects on its surface. In a preferred embodiment, the detection device 3 includes a camera 3, which is set between the flipping chuck and the leveling roller 61 to detect the surface of the flipped profile. The surface being detected is the lower surface of the profile. If the same wear point appears at the same position on the lower surface of the profile for a long time, it is determined that there is a quality problem inside the mold core. The "long time" can be automatically set according to historical data or manually set by the worker. For example, if a certain wear point appears continuously, such as a straight line like "————", or a regular "--------" interval, or other regularly appearing wear points, it can be determined that there is a defect on its surface, and the detection device 3 outputs the result "yes".

[0059] All the above test results can be marked, which can quickly identify where wear occurs inside the mold core, making it convenient for workers to quickly treat the wear.

[0060] Step 2: If one or more of the test results in Step 1 are "yes", then issue a command to detach the aluminum rod and quickly transfer the aluminum rod that has not yet been transferred to mold 1 into the heat preservation box 42.

[0061] Step 3: If all the test results in Step 1 are "No", then issue an order to continue extruding the aluminum profile and continue to feed the aluminum rod into mold 1.

[0062] Step 4: Obtain historical cross-sectional images of aluminum profiles, plot the changes in their wall thickness as curves, and compare them in chronological order to obtain the wall thickness change curves in the profiles. Analyze the trend of these changes and predict the wear trend of the mold core.

[0063] It also includes a cutting machine 8 and a cutting blade 9. The cutting machine 8 is used to quantitatively cut the profiles extruded through the mold 1, and the cutting blade 9 is used to cut aluminum rods that have not entered the mold 1.

[0064] The specific implementation method is as follows: The profile extruded from the mold 1 is conveyed to the bottom of the cutting machine 8 via the conveyor 2. At this time, the cutting machine 8 is controlled to cut the profile. After the profile is cut, the cross-section of the profile is imaged by the vision inspection device 72, and all the wall thickness information of the profile is analyzed and compared with the standard wall thickness information. If the wall thickness of the profile does not meet the requirements, it is determined that the mold core of the mold 1 is severely worn and cannot continue to produce products. At this time, the pushing of aluminum rods into the mold 1 is stopped, and the cutting blade 9 is used to cut off all the aluminum rods located outside the mold 1. The cut aluminum rods will fall between the two clamping plates 4. The aluminum rod is placed in the receiving area 41, and then the rotating shaft 5 is controlled to rotate, which drives the clamping plate 4 to rotate, thereby causing the aluminum rod to rotate. Finally, the aluminum rod passes through the arc-shaped discharge port 46 and falls into the heat preservation box 42. The aluminum rod is promptly removed and transported to the heat preservation box 42 for heat preservation, which can avoid the situation where the aluminum rod is left in the conveying cylinder 3 to cool down, which would require the aluminum rod to be reheated later. Repeated processing increases production time and wastes processing resources. In addition, when the aluminum rod falls onto the clamping plate 4, the buffer plates 43 on both sides will buffer the aluminum rod, reducing the impact force on the clamping plate 4. Furthermore, the buffer plates 43 are elastic, which can reduce the deformation of the aluminum rod.

[0065] When detection device one and detection device two detect damage to the surface of the profile, the process of removing the aluminum rod described above is repeated.

[0066] Furthermore, during normal use, when each aluminum rod is processed to the later stage, there will always be some aluminum rod remaining at its end. It is necessary to cut off the remaining aluminum rod. When the remaining aluminum rod at the end is cut off, the excess aluminum rod is also transported into the heat preservation box 42 for heat preservation treatment, so as to facilitate the recycling of the remaining aluminum rod.

[0067] If the extruded profile meets all requirements, after cutting, the finger cylinder 51 is controlled to clamp and fix the cut profile. Then, the outer ring 54 drives the finger cylinder 51 to perform a circular motion. The profile will move along with this motion until it is flipped. At this point, the finger cylinder 51 can be controlled to place the profile back onto the conveyor 2. The profile has now been flipped 180 degrees and continues to be conveyed. The profile will pass under the detection device 3, allowing for image acquisition of the profile's surface. Because the conveying surface of the conveyor 2 is parallel to the surface of the profile... The extrusion nozzle heights of mold 1 are different, so the profile is curved in an arched shape when conveyed at the front end. Therefore, leveling rollers 61 can be set in the direction of continued conveying of the profile. It is best to set two sets of leveling rollers 61 in parallel. When the profile passes through the leveling rollers 61, the profile can be leveled to form a straight shape. The reason for leveling the profile first is that if the profile is not leveled first, the deformation force of the already bent parts of the profile will be horizontal but not coincident with the tensile force when stretched later, as shown in the attached figure. Figure 11As shown, F1a represents the direction of tensile force, and F2a represents the direction of deformation force of the profile. At this point, although the profile can be stretched horizontally as a whole, the bent portion cannot be straightened and can only deform horizontally in the tangential direction. Therefore, the profile cannot be fully stretched to a horizontal state. However, by leveling the profile here, the horizontality of the profile can be guaranteed. During subsequent stretching, the direction of deformation force can be ensured to coincide with the direction of tensile force, as shown in the attached instruction manual. Figure 11 F1b is the direction of the tensile force, and F2b is the direction of the deformation force of the profile. At this time, the directions of F1b and F2b are the same and coincide, so the profile can be stretched and extended uniformly to improve the levelness of the profile after stretching.

[0068] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A molding equipment for producing harmonica tubes with a self-inspection function of the mold core, comprising a mold (1) and a conveyor (2), wherein the conveyor (2) is used to convey the profile extruded by the mold (1), characterized in that: It also includes a feeding cylinder (3), which includes a left shell (31) and a right shell (32). After the left shell (31) and the right shell (32) are joined together, the middle area is a feeding channel (33); after the left shell (31) and the right shell (32) are opened, the middle area is a dropping channel (34). And a rotating shaft (5) with clamps (4), the clamps (4) are circumferentially distributed on the outer wall of the rotating shaft (5), and the area between two adjacent clamps (4) is an aluminum rod receiving area (41). The aluminum rod receiving area (41) is used to store aluminum rods conveyed through the dropping channel (34). When the clamps (4) rotate, the aluminum rods in the aluminum rod receiving area (41) will be conveyed to the heat preservation box (42). And a flipping chuck, which is used to flip the product, and the flipped product is conveyed to the leveling part for leveling. The system includes a detection module for detecting the product extruded through the mold (1), including detecting the cross-section and surface of the product. When the detection result is qualified, the aluminum rod continues to be fed into the mold (1). When the detection result is unqualified, the aluminum rod that has not been fed into the mold (1) is quickly fed into the heat preservation box (42).

2. The molding equipment for producing harmonica tubes with a self-inspection function of the mold core according to claim 1, characterized in that: The left shell (31) and the right shell (32) are respectively fixedly connected to the connecting frame (35). The connecting frame (35) is sleeved on the bidirectional lead screw (36). When the bidirectional lead screw (36) rotates, it drives the two connecting frames (35) to rotate in opposite directions at the same time. The bidirectional lead screw (36) is rotatably mounted on the inner wall of the support frame (37), and the inner wall of the support frame (37) is provided with a guide rod (38) that penetrates the connecting frame (35). One end of the bidirectional lead screw (36) is fixedly connected to the output shaft of the drive motor (39).

3. The molding equipment for producing harmonica tubes with a self-inspection function of the mold core according to claim 1, characterized in that: The outer wall of the clip (4) is provided with a buffer, which is used to buffer the impact force generated on the clip (4) when the aluminum rod falls, and the end of the clip (4) is provided with a seal, which is used to fill the gap between the clip (4) and the heat preservation box (42).

4. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 3, characterized in that: The buffer includes a buffer plate (43) and a buffer spring (44). The buffer plate (43) is hinged to the clamping piece (4), and the buffer spring (44) is located between the buffer plate (43) and the clamping piece (4). The buffer plate (43) located in the same aluminum rod receiving area (41) is V-shaped. The sealing element includes a rubber airbag (45), which is located at the end of the clamp (4). The top of the insulation box (42) is provided with a through arc-shaped discharge port (46). When the clamp (4) is in contact with the inner wall of the arc-shaped discharge port (46), the rubber airbag (45) completely fills the gap between the clamp (4) and the arc-shaped discharge port (46).

5. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 1, characterized in that: The flipping chuck includes a finger cylinder (51), an electric telescopic rod (52), and a directional adjustment component. The finger cylinder (51) is used to clamp the formed profile. The finger cylinder (51) is located at the end of the electric telescopic rod (52). The electric telescopic rod (52) is used to drive the finger cylinder (51) to move. The directional adjustment component is used to drive the finger cylinder (51) to rotate and change the angle of the finger cylinder (51).

6. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 5, characterized in that: The steering component includes an arc-shaped bracket (53) and an annular outer ring (54). The annular outer ring (54) is rotatably sleeved on the outer wall of the arc-shaped bracket (53). One end of the electric telescopic rod (52) passes through the arc-shaped bracket (53) and is fixedly connected to the annular outer ring (54). The inner wall of the arc-shaped bracket (53) is provided with an arc-shaped guide groove (55) that matches the electric telescopic rod (52). The inner wall of the annular outer ring (54) is provided with an arc-shaped rack (56). The arc-shaped rack (56) meshes with a drive gear (57). The drive gear (57) is sleeved on the outer wall of the output shaft of the second drive motor (58).

7. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 1, characterized in that: The leveling component includes a leveling roller (61) and a leveling platform (62). The leveling platform (62) has a support plate (63) on its top and a support block (64) that is slidably connected on the side wall of the support plate (63). The leveling roller (61) is rotatably connected to the support block (64). When the support block (64) is displaced, the distance between the leveling roller (61) and the leveling platform (62) is adjusted.

8. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 1, characterized in that: The detection module includes a first visual inspection device (71), a second visual inspection device (72), and a third visual inspection device (73). The first visual inspection device (71) is used to perform image acquisition and detection on the upper surface of the profile extruded by the mold (1). The second visual inspection device (72) is used to perform image acquisition and detection on the cut surface of the profile after cutting. The third visual inspection device (73) is used to perform image acquisition and detection on the lower surface of the profile. The acquired image information is transmitted to the calculation unit. The calculation unit calculates the detection result based on the acquired image and transmits the detection result to the instruction unit. The instruction unit is used to control the product processing process based on the detection result. Simultaneously, the acquired images of the cross-section of the profile can be transmitted to the prediction unit, which is used to predict the wear trend of the mold core.

9. A molding equipment for producing harmonica tubes with a self-inspection function for the mold core as described in claim 8, characterized in that: The specific process of the detection module is as follows: Step 1: Use detection device 1 to collect images of the upper surface of the profile extruded from the mold (1) and check whether there are defects on its surface; use detection device 2 to collect images of the cross-section of the cut profile and check whether the inner core of the mold (1) is worn according to the wall thickness of the product; use detection device 3 to collect images of the lower surface of the profile and check whether there are defects on its surface. Step 2: If one or more of the test results in Step 1 are "yes", then issue a command to remove the aluminum rod and quickly transfer the aluminum rod that has not yet been transferred to the mold (1) into the heat preservation box (42). Step 3: If all the test results in Step 1 are "No", then issue an order to continue extruding the aluminum profile and continue to feed the aluminum rod into the mold (1); Step 4: Obtain historical cross-sectional images of aluminum profiles, plot the changes in their wall thickness as curves, and compare them in chronological order to obtain the wall thickness change curves in the profiles. Analyze the trend of these changes and predict the wear trend of the mold core.

10. A molding equipment for producing harmonica tubes with a self-inspection function of the mold core according to claim 1, characterized in that: It also includes a cutting machine (8) and a cutting blade (9), the cutting machine (8) being used to quantitatively cut the profiles extruded through the mold (1), and the cutting blade (9) being used to cut aluminum rods that have not entered the mold (1).

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