A barrel rotating mechanism and a trimming device comprising the same

Abstract

The present application relates to the technical field of super-clean HDPE drum production, in particular to a barrel rotating mechanism and a trimming device containing the mechanism, comprising a blow molding machine and a barrel produced by the blow molding machine, further comprising a detection assembly, comprising a detection frame installed on one side of the blow molding machine, two detection covers are slidably installed on the detection frame, a plurality of partition strips are equidistantly arranged on the inner sides of the two detection covers, the barrel is wrapped by the two detection covers, and a plurality of sealed chambers are divided by the partition strips; an adjusting assembly is used for driving the barrel to rotate intermittently, and air is injected into the barrel after each rotation; wherein, a gas pressure sensor is arranged between two adjacent partition strips. By arranging the detection assembly on one side of the blow molding machine, the hot cutter can be directly transferred away after trimming is completed, and air tightness detection is simultaneously performed, secondly, the detection process is divided into multiple spaces for simultaneous detection, detection data comparison can be performed, and the detection precision is improved.

Description

Technical Field

[0001] This invention relates to the field of ultra-clean HDPE barrel technology, specifically to a barrel rotation mechanism and a trimming device containing the mechanism. Background Technology

[0002] Ultra-clean HDPE drums are special packaging containers made of high-density polyethylene (HDPE) material, mainly used for the storage and transportation of high-purity chemicals in fields such as semiconductors, photovoltaics, and biotechnology.

[0003] In the existing technology, the ultra-clean HDPE bucket is produced through blow molding, which generates burrs, usually at the top and bottom ends of the bucket. After the burrs are trimmed, the airtightness of the plastic bucket needs to be tested. However, the trimming and testing processes require different equipment, and the transportation process is also involved. Therefore, the airtightness test cannot be performed immediately, resulting in low production efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a barrel rotation mechanism and an edge trimming device containing the mechanism, which can effectively solve the problem of low production efficiency caused by the lack of integration of detection and edge trimming functions in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a barrel rotation mechanism, including a blow molding machine and a barrel produced by the blow molding machine, and further comprising:

[0007] The testing assembly includes a testing frame installed on one side of the blow molding machine. Two testing covers are slidably mounted on the testing frame. Multiple partition strips are provided at equal intervals on the inner side of the two testing covers. The barrel is wrapped by the two testing covers and the partition strips divide it into multiple sealed chambers.

[0008] An adjustment component is used to drive the barrel to rotate intermittently, and to inject air into the barrel after each rotation.

[0009] A pressure sensor is provided between two adjacent separators.

[0010] Furthermore, the detection assembly also includes two sliding brackets slidably mounted on the detection frame. Each of the two sliding brackets has a mounting bracket fixedly mounted on its outer wall on the side closest to it. The two detection covers are mounted one-to-one on the two mounting brackets. The bottom of the detection frame is provided with a drive assembly for adjusting the distance between the two sliding brackets.

[0011] Furthermore, guide frames are elastically installed on the inner walls of the two detection covers, guide wheels are rotatably installed on the guide frames, and first friction pads are provided on the guide wheels.

[0012] Furthermore, the detection assembly also includes a fixed plate installed on one side of the blow molding machine. A second electric push rod is fixedly installed on the fixed plate. A lifting plate is rotatably installed at the output end of the second electric push rod. A first sealing plate is provided at the bottom of the lifting plate. A rotating rod is rotatably inserted on the detection frame. A second sealing plate is provided at the top of the rotating rod. A third electric push rod is provided at the bottom of the detection frame, and the bottom end of the rotating rod is rotatably connected to the output shaft of the third electric push rod.

[0013] Furthermore, both the first sealing plate and the second sealing plate have detection grooves on their outer walls near the barrel body, and the diameter of the detection grooves is slightly smaller than the outer diameter of the barrel body. The detection groove on the second sealing plate has a protrusion, and the top of the protrusion has a second friction pad.

[0014] Furthermore, a first piston tube is fixedly installed on the top wall of the testing frame, and a first piston rod is movably inserted into the top end of the first piston tube. The first piston rod is fixedly connected to the bottom wall of the testing frame. A second piston tube is fixedly installed on the top wall of the lifting plate, and a second piston rod is movably inserted into the bottom end of the second piston tube. The second piston rod movably passes through the lifting plate and is fixedly connected to the first sealing plate. A connecting pipe connects the first piston tube and the second piston tube.

[0015] Furthermore, the adjustment assembly includes a drive motor fixedly mounted on the bottom wall of the detection frame, a half gear fixedly mounted on the output shaft of the drive motor, a sleeve movably sleeved on the rotating rod, and the sleeve and the detection frame being rotatably connected, a full gear adapted to the half gear being fixedly mounted at the bottom end of the sleeve, and the full gear and the rotating rod being slidably connected.

[0016] Furthermore, a cam is fixedly mounted on the output shaft of the drive motor, an auxiliary plate is fixedly mounted on the bottom wall of the detection frame, a fourth piston tube is fixedly mounted on the auxiliary plate, a fourth piston rod is movably inserted into the fourth piston tube, and a return spring is sleeved on the fourth piston rod. A transmission plate is fixedly mounted on the fourth piston rod, and the transmission plate and the cam are slidably connected. An elastic rod is provided on the transmission plate, and a pressure block is provided at the end of the elastic rod. A first switch is provided on the auxiliary plate, and a reinforcing airbag is provided in the partition strip. The reinforcing airbag is connected to a reinforcing strip.

[0017] Furthermore, an inflation tube is fixedly installed on the bottom wall of the first sealing plate, and an air pump is connected to the outside of the inflation tube. The inflation tube is equipped with an anti-slip sleeve and is in the shape of an inverted frustum.

[0018] Furthermore, a sliding frame is slidably mounted on the blow molding machine, a guide rod is movably inserted into the sliding frame, a mold is fixedly mounted on the guide rod, and a first electric push rod for driving the mold to slide is provided on the sliding frame, and the sliding direction of the sliding frame is perpendicular to the sliding direction of the mold.

[0019] A trimming device employs the aforementioned barrel rotation mechanism, comprising a servo motor mounted on a mounting frame, a right-angle bracket fixedly mounted on the output shaft of the servo motor, and a hot cutting blade mounted on the end of the right-angle bracket away from the servo motor.

[0020] Furthermore, the testing frame is equipped with two air boxes, and a third piston rod is movably inserted into each air box. The third piston rod is fixedly connected to a sliding bracket. A discharge rack is fixedly installed on the testing frame, and a discharge pipe is provided on the discharge rack.

[0021] Furthermore, a control valve is provided on the unloading pipe, and a second switch for controlling the control valve is provided on the mounting bracket.

[0022] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0023] By installing a detection component on one side of the blow molding machine, the hot cutting blade can be directly rotated away after trimming and air tightness testing can be performed simultaneously. Furthermore, the testing process is divided into multiple spaces for simultaneous testing, allowing for data comparison and improving testing accuracy. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of the present invention before demolding;

[0026] Figure 2 This is a schematic diagram of the entire structure after the mold is removed from the mold.

[0027] Figure 3 This is a structural diagram of the testing frame.

[0028] Figure 4 A schematic diagram of the structure of the adjustment component;

[0029] Figure 5 for Figure 4 Enlarged view of the structure of part A in the middle;

[0030] Figure 6 This is a schematic diagram of the structure of the detection cover.

[0031] Figure 7 This is a diagram showing the motion of the barrel during the testing process.

[0032] The labels in the diagram represent: 1. Blow molding machine; 2. Sliding frame; 3. First electric actuator; 4. Mold; 5. Guide rod; 6. Inspection frame; 7. Inspection cover; 8. Lifting plate; 9. First sealing plate; 10. Inflation pipe; 11. Second electric actuator; 12. Third electric actuator; 13. Second sealing plate; 14. Inspection groove; 15. Protrusion; 16. First piston tube; 17. Second piston tube; 18. Separator bar; 19. Servo motor; 20. 21. Right-angle frame; 22. Hot cutting knife; 23. Sliding bracket; 24. Air box; 25. Third piston rod; 26. Mounting bracket; 27. Drive motor; 28. Half gear; 29. ​​Full gear; 30. Cam; 31. Transmission plate; 32. Pressure block; 33. Elastic rod; 34. First switch; 35. Fourth piston tube; 36. Fourth piston rod; 37. Unloading rack; 38. Unloading pipe; 39. Reinforcing airbag; 40. Reinforcing strip; 41. Guide frame. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example 1:

[0036] refer to Figure 1A barrel rotation mechanism includes a blow molding machine 1 and a barrel produced by the blow molding machine 1. A sliding frame 2 is slidably mounted on the blow molding machine 1, a guide rod 5 is movably inserted into the sliding frame 2, and a mold 4 is fixedly mounted on the guide rod 5. A first electric push rod 3 for driving the mold 4 to slide is provided on the sliding frame 2, and the sliding direction of the sliding frame 2 is perpendicular to the sliding direction of the mold 4. Multi-directional movement of the mold 4 is achieved through mutually perpendicular sliding. The mechanism also includes a detection component, including a detection frame 6 installed on one side of the blow molding machine 1. Two detection covers 7 are slidably mounted on the detection frame 6. Multiple partition strips 18 are evenly spaced on the inner side of the two detection covers 7. The two detection covers 7 are used to separate the barrel from the mold 4. The barrel is enclosed and divided into multiple sealed chambers by partition strips 18. Guide frames 40 are elastically installed on the inner side walls of the two detection covers 7. Guide wheels are rotatably installed on the guide frames 40, and the guide wheels are provided with first friction pads. The detection assembly also includes two sliding brackets 22 that are slidably installed on the detection frame 6. Mounting brackets 25 are fixedly installed on the outer wall of the two sliding brackets 22 that are close to each other. The two detection covers 7 are installed on the two mounting brackets 25 one by one. The bottom of the detection frame 6 is provided with a drive assembly for adjusting the distance between the two sliding brackets 22 (the drive assembly can be driven by a motor or an electric push rod, depending on the actual needs).

[0037] like Figure 6 and Figure 7 As shown, multiple dividing strips 18 are set on the inner side wall of the detection cover 7 to perform zone detection on the side wall of the barrel, which can improve the detection efficiency. At the same time, the barrel is driven to rotate, and the same position of the barrel is detected in different sealing areas. Meanwhile, an external data processing device is set up to receive the data from the air pressure sensor and compare the data of the same area to further improve the detection accuracy.

[0038] Specifically, the testing assembly also includes a fixed plate installed on one side of the blow molding machine 1. A second electric push rod 11 is fixedly installed on the fixed plate. A lifting plate 8 is rotatably installed at the output end of the second electric push rod 11. A first sealing plate 9 is provided at the bottom of the lifting plate 8. An inflation pipe 10 is fixedly installed on the bottom wall of the first sealing plate 9, and an air pump is connected to the outside of the inflation pipe 10. The inflation pipe 10 is provided with an anti-slip sleeve and is shaped like an inverted frustum. A rotating rod is rotatably inserted on the testing frame 6. A second sealing plate 13 is provided at the top of the rotating rod. A third electric push rod 12 is provided at the bottom of the testing frame 6, and the bottom end of the rotating rod is rotatably connected to the output shaft of the third electric push rod 12. Testing grooves 14 are opened on the outer walls of the first sealing plate 9 and the second sealing plate 13 near the barrel, and the diameter of the testing grooves 14 is... Slightly smaller than the outer diameter of the barrel, the detection groove 14 on the second sealing plate 13 is provided with a protrusion 15, and the top of the protrusion 15 is provided with a second friction pad. The first piston tube 16 is fixedly installed on the top wall of the detection frame 6, and the top of the first piston tube 16 is movably inserted with a first piston rod, and the first piston rod is fixedly connected to the bottom wall of the detection frame 6. The second piston tube 17 is fixedly installed on the top wall of the lifting plate 8, and the bottom end of the second piston tube 17 is movably inserted with a second piston rod, and the second piston rod movably passes through the lifting plate 8 and is fixedly connected to the first sealing plate 9. A connecting pipe is connected between the first piston tube 16 and the second piston tube 17. A pressure sensor is provided between two adjacent partition bars 18, and a gas sensor is also provided in the two detection grooves 14.

[0039] After the barrel body is injection molded, the first electric push rod 3 pushes the mold 4 and the blow-molded barrel body towards the inspection frame 6 until they are positioned between the two inspection covers 7. The second electric push rod 11 then drives the lifting plate 8 and the lower first sealing plate 9 to move downwards, causing the inflation tube 10 to be inserted into the opening of the barrel body (the opening left after blow molding). The frustum-shaped inflation tube 10 uses friction to fix the barrel body in place. Then, the mold 4 is removed, separating the barrel body from the mold 4 (e.g., ...). Figures 1 to 2 (The process).

[0040] Subsequently, the driving component is used to drive two detection covers 7 to wrap around the barrel. The guide wheels in the two detection covers 7 clamp the barrel from both sides, which not only helps with positioning but also facilitates the subsequent rotation of the barrel.

[0041] At this time, the third electric actuator 12 is activated to drive the second sealing plate 13 to move upward. During the upward movement, the second sealing plate 13 will pull the first piston rod to move upward, filling the air in the first piston tube 16 into the second piston tube 17, causing the second piston rod to extend and drive the first sealing plate 9 to move downward, clamping and sealing the barrel from both ends, and ensuring that the space in the detection groove 14 is not connected to any segmented area.

[0042] like Figure 7As shown, after the enclosed barrel is divided into multiple sealed areas, air is added to the barrel through the air inflator 10, and the pressure changes in each area and the detection tank 14 are detected to determine whether the barrel is qualified.

[0043] Example 2:

[0044] refer to Figure 4 and Figure 5 An adjustment assembly is used to drive the barrel to rotate intermittently, and to inject air into the barrel after each rotation. The adjustment assembly includes a drive motor 26 fixedly mounted on the bottom wall of the detection frame 6. A half gear 27 is fixedly mounted on the output shaft of the drive motor 26. A sleeve is movably sleeved on the rotating rod, and the sleeve is rotatably connected to the detection frame 6. A full gear 28 adapted to the half gear 27 is fixedly mounted at the bottom end of the sleeve. The full gear 28 is slidably connected to the rotating rod. A cam 29 is fixedly mounted on the output shaft of the drive motor 26. An auxiliary plate is fixedly installed on the bottom wall of 6. A fourth piston tube 34 is fixedly installed on the auxiliary plate. A fourth piston rod 35 is movably inserted into the fourth piston tube 34. A return spring is sleeved on the fourth piston rod 35. A transmission plate 30 is fixedly installed on the fourth piston rod 35. The transmission plate 30 and the cam 29 are slidably connected. An elastic rod 32 is provided on the transmission plate 30. A pressure block 31 is provided at the end of the elastic rod 32. A first switch 33 is provided on the auxiliary plate. A reinforcing airbag 38 is provided in the partition strip 18. The reinforcing airbag 38 is connected to a reinforcing strip 39.

[0045] The drive motor 26 drives the half gear 27 to rotate, and the half gear 27 intermittently transmits power to the full gear 28, causing the upper second sealing plate 13 to rotate intermittently at a certain angle. This angle can be adjusted by adjusting the gear transmission ratio. At the same time, the drive motor 26 also drives the cam 29 to rotate. After the gear transmission ends, the cam 29 will squeeze the transmission plate 30. Each squeeze of the transmission plate 30 will trigger the first switch 33. After the first switch 33 is triggered, the air pump will start, and gas will be injected into the barrel through the air filling pipe 10. At the same time, the air pressure sensor records the air pressure data of each sealing area. Then the air pump will pump out the air, and the cycle will repeat.

[0046] Furthermore, the transmission plate 30 will compress the fourth piston rod 35, delivering the air in the fourth piston tube 34 to each reinforcing airbag 38, providing the compression and sealing effect of the reinforcing strip 39 to prevent air leakage between different areas.

[0047] Example 3:

[0048] refer to Figure 6A trimming device, employing the aforementioned barrel rotation mechanism, is characterized by comprising a servo motor 19 mounted on a mounting frame 25, a right-angle bracket 20 fixedly mounted on the output shaft of the servo motor 19, and a hot-cutting blade 21 mounted on the end of the right-angle bracket 20 away from the servo motor 19. A detection frame 6 is provided with two air boxes 23, a third piston rod 24 movably inserted into each air box 23, the third piston rod 24 being fixedly connected to a sliding bracket 22, and a discharge frame 36 fixedly mounted on the detection frame 6, with a discharge pipe 37 on the discharge frame 36. A control valve is provided on the discharge pipe 37, and a second switch for controlling the control valve is provided on the mounting frame 25.

[0049] When the two test covers 7 are close together, the hot cutting blade 21 located on one side of one of the test covers 7 will gradually approach the rough edges located at the top and bottom ends of the barrel and cut them off. After that, the mounting bracket 25 closes, the second switch is triggered, and the right-angle bracket 20 rotates. This way, the subsequent sealing test will not be affected after the cutting is completed.

[0050] When the two detection hoods 7 are close together, the air in the two air boxes 23 is squeezed to the unloading pipe 37 (the air box 23 and the unloading pipe 37 are connected), and is quickly sprayed out the moment the control valve is opened, blowing away the cut burrs.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A barrel rotation mechanism, comprising a blow molding machine and a barrel produced by the blow molding machine, characterized in that, Also includes: The testing assembly includes a testing frame installed on one side of the blow molding machine. Two testing covers are slidably mounted on the testing frame. Multiple partition strips are provided at equal intervals on the inner side of the two testing covers. The barrel is wrapped by the two testing covers and the partition strips divide it into multiple sealed chambers. An adjustment component is used to drive the barrel to rotate intermittently, and to inject air into the barrel after each rotation. A pressure sensor is provided between two adjacent separator bars; The detection assembly also includes a fixed plate installed on one side of the blow molding machine. A second electric push rod is fixedly installed on the fixed plate. A lifting plate is rotatably installed at the output end of the second electric push rod. A first sealing plate is provided at the bottom of the lifting plate. A rotating rod is rotatably inserted on the detection frame. A second sealing plate is provided at the top of the rotating rod. A third electric push rod is provided at the bottom of the detection frame, and the bottom end of the rotating rod is rotatably connected to the output shaft of the third electric push rod. The first sealing plate and the second sealing plate are both provided with detection grooves on the outer wall of the side near the barrel body, and the diameter of the detection groove is slightly smaller than the outer diameter of the barrel body. The detection groove on the second sealing plate is provided with a protrusion, and the top of the protrusion is provided with a second friction pad. A first piston tube is fixedly installed on the top wall of the testing frame, and a first piston rod is movably inserted into the top end of the first piston tube. The first piston rod is fixedly connected to the bottom wall of the testing frame. A second piston tube is fixedly installed on the top wall of the lifting plate, and a second piston rod is movably inserted into the bottom end of the second piston tube. The second piston rod movably passes through the lifting plate and is fixedly connected to the first sealing plate. A connecting pipe connects the first piston tube and the second piston tube. The adjustment assembly includes a drive motor fixedly mounted on the bottom wall of the detection frame, a half gear fixedly mounted on the output shaft of the drive motor, a sleeve movably sleeved on the rotating rod, and the sleeve and the detection frame being rotatably connected, a full gear adapted to the half gear being fixedly mounted at the bottom end of the sleeve, and the full gear and the rotating rod being slidably connected. A cam is fixedly mounted on the output shaft of the drive motor. An auxiliary plate is fixedly mounted on the bottom wall of the detection frame. A fourth piston tube is fixedly mounted on the auxiliary plate. A fourth piston rod is movably inserted into the fourth piston tube, and a return spring is sleeved on the fourth piston rod. A transmission plate is fixedly mounted on the fourth piston rod, and the transmission plate and the cam are slidably connected. An elastic rod is provided on the transmission plate, and a pressure block is provided at the end of the elastic rod. A first switch is provided on the auxiliary plate. A reinforcing airbag is provided in the partition strip, and the reinforcing airbag is connected to a reinforcing strip.

2. The barrel rotation mechanism according to claim 1, characterized in that, The detection assembly also includes two sliding brackets that are slidably mounted on the detection frame. Each of the two sliding brackets has a mounting bracket fixedly mounted on the outer wall of the side closest to each other. The two detection covers are mounted on the two mounting brackets one to one. The bottom of the detection frame is provided with a drive assembly for adjusting the distance between the two sliding brackets.

3. The barrel rotation mechanism according to claim 1, characterized in that, Guide frames are elastically mounted on the inner walls of the two detection covers, and guide wheels are rotatably mounted on the guide frames, with a first friction pad provided on the guide wheels.

4. The barrel rotation mechanism according to claim 1, characterized in that, An inflation tube is fixedly installed on the bottom wall of the first sealing plate, and an air pump is connected to the outside of the inflation tube. The inflation tube is equipped with an anti-slip sleeve and is in the shape of an inverted frustum.

5. A barrel rotation mechanism according to claim 2, characterized in that, The blow molding machine is slidably mounted with a sliding frame, a guide rod is movably inserted into the sliding frame, a mold is fixedly mounted on the guide rod, and a first electric push rod for driving the mold to slide is provided on the sliding frame, and the sliding direction of the sliding frame is perpendicular to the sliding direction of the mold.

6. A trimming device, employing the barrel rotation mechanism described in claim 5, characterized in that, It includes a servo motor mounted on a mounting bracket, a right-angle bracket fixedly mounted on the output shaft of the servo motor, and a hot cutting blade mounted on the end of the right-angle bracket away from the servo motor.

7. The trimming device according to claim 6, characterized in that, The testing frame is equipped with two air boxes, and a third piston rod is movably inserted into each air box. The third piston rod is fixedly connected to a sliding bracket. A discharge rack is fixedly installed on the testing frame, and a discharge pipe is provided on the discharge rack.

8. The trimming device according to claim 7, characterized in that, The unloading pipe is equipped with a control valve, and the mounting bracket is equipped with a second switch for controlling the control valve.

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