Film continuous metal detection device
By setting up two-stage metal detection in film production and performing 90° steering, the missed detection problem caused by parallelism between metal and magnetic force lines in film is solved, the detection accuracy and service life of the device are improved, and the efficient classification of film is achieved.
Patent Information
- Application Number
- CN202421793680.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-26
Smart Images
Figure CN223043128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rubber production equipment, in particular to a continuous metal detection device for film. Background Art
[0002] A metal detector is a detection device that uses the principle of electromagnetic induction to detect metals. When ferromagnetic metals enter the detection area, they will affect the magnetic field line distribution in the detection area, thereby affecting the magnetic flux within a fixed range; when non-ferromagnetic metals enter the detection area, an eddy current effect will be generated, which will also change the magnetic field distribution in the detection area. During the film production process, metal impurities are removed by setting up filtering devices, magnetic separation devices, etc., but the removal effect cannot be completely guaranteed. Therefore, it is necessary to conduct metal detection on the film after production to ensure the quality of the final film products stored in the warehouse. In the prior art, usually only one metal detection is performed on the film. However, if the metal in the film is exactly parallel to the magnetic field lines, the metal in the film cannot be detected, which affects the accuracy of metal detection and the quality of the film. Content of the Utility Model
[0003] The purpose of the utility model is to provide a continuous metal detection device for film, which is provided with two-stage metal detection and rotates the film by 90° between the two-stage metal detection, so that the two detection directions of the film are perpendicular, avoiding missed detection caused by the metal in the film being parallel to the magnetic field lines of metal detection, improving the accuracy of metal detection, and ensuring the quality of the film stored in the warehouse.
[0004] The above technical purpose of the utility model is achieved through the following technical solutions:
[0005] A continuous metal detection device for film includes a feeding mechanism, a first metal detection mechanism, a transfer mechanism, an adjustment mechanism, and a second metal detection mechanism arranged in sequence along the feeding direction. The adjustment mechanism includes an adjustment frame arranged along the feeding direction, and a plurality of conveying rollers arranged along the width direction of the adjustment frame are rotationally installed on the adjustment frame along its length direction; a side push assembly is arranged at one end of the adjustment mechanism close to the transfer mechanism, and a steering assembly is arranged at one end close to the second metal detection mechanism; the steering assembly includes a cross-shaped lifting frame that slides vertically and rotates around a vertical axis. The cross-shaped lifting frame includes a first lifting rod and a second lifting rod arranged along the length direction and the width direction of the adjustment frame respectively. A lifting and rotating cylinder is connected to the bottom of the cross-shaped lifting frame to drive it to slide vertically and rotate. In the normal state, the upper end surface of the cross-shaped lifting frame is lower than the upper end of the conveying roller.
[0006] By adopting the above technical solution, the film to be tested is fed by the feeding mechanism and transported to the first metal detection mechanism for the first metal detection, and then transported to the adjustment mechanism through the transfer mechanism. The side push assembly in the adjustment mechanism pushes the film from both sides to adjust the film position to align with the steering assembly. The conveying roller of the adjustment mechanism rotates to convey the film to the steering assembly, and the film is located above the cross-lifting frame. The lifting and rotating cylinder first drives the cross-lifting frame to rise as a whole, and the first lifting rod and the second lifting rod lift the film upward until the cross-lifting frame is completely above the conveying roller; the lifting and rotating cylinder then drives the cross-lifting frame as a whole to drive the film to rotate 90°. After the rotation is in place, the lifting and rotating cylinder drives the cross-lifting frame as a whole to move vertically downward to reset, and the film is placed on the conveying roller. The conveying roller conveys the rotated film to the second metal detection mechanism for the second metal detection.
[0007] The utility model performs two metal detections on the film by setting a first metal detection mechanism and a second metal detection mechanism, and uses a steering assembly to turn the film 90 degrees between the two metal detections, so that the two detection directions of the film are perpendicular, avoiding missed detection due to the parallelism between the metal in the film and the magnetic lines of force of the metal detection, improving the accuracy of metal detection, and ensuring the quality of the film entering the warehouse. Among them, the transfer mechanism avoids the short distance between film loading, the first metal detection, side pushing, and turning, which easily leads to film accumulation, and the first lifting rod and the second lifting rod in the cross lifting frame support the film in four directions to ensure the stability of the film when turning.
[0008] Furthermore, the adjustment frame is provided with a dividing groove which is arranged along its length direction and has an open upper end. The conveying rollers located at the dividing groove are two coaxially arranged and respectively located on both sides of the dividing groove, and are positioned and rotatably installed on the side walls of the dividing groove and the adjustment frame; the dividing groove cooperates with the first lifting rod and the second lifting rod, and the dividing groove is provided with a yield opening, and the first lifting rod or the second lifting rod is stuck in the yield opening when it is perpendicular to the dividing groove; in normal state, the first lifting rod and the second lifting rod are respectively located in the dividing groove and in the gap between two adjacent conveying rollers, and the upper end of the dividing groove and the cross lifting frame are lower than the upper end of the conveying roller.
[0009] By adopting the above technical solution, the conveying rollers on both sides are separated by a dividing groove, and the gap between adjacent conveying rollers and the clearance opening are coordinated to provide an accommodation space for the first lifting rod and the second lifting rod, thereby ensuring that the cross lifting frame is lower than the upper end of the conveying roller before turning work, so as to avoid affecting the conveying roller from smoothly conveying the film to the top of the cross lifting frame.
[0010] Furthermore, the side push assembly includes two push plates arranged along the length direction of the adjustment frame, the two push plates are respectively close to the two sides of the adjustment frame and are located above the conveying roller, the two push plates are symmetrically arranged about the dividing groove and are slidably installed on the adjustment frame along the length direction of the conveying roller, and the two push plates are also connected to a driving assembly that drives them to slide closer or farther synchronously.
[0011] By adopting the above technical solution, during normal state, the push plates are respectively close to both sides of the adjustment frame. The transfer mechanism and the conveying rollers convey the film that has passed the first metal detection between the two push plates, and then the conveying rollers stop rotating. The driving assembly drives the two push plates to slide synchronously and approach each other, pushing and clamping the film from both sides of the film, accurately adjusting the position of the film to correspond to the steering assembly. Subsequently, the driving assembly drives the two push plates to slide synchronously and move away from each other, and the conveying rollers continue to rotate to convey the film to the steering assembly.
[0012] Furthermore, the driving assembly includes two transmission wheels respectively close to both sides of the adjustment frame and positioned and rotatably installed on the adjustment frame. The transmission wheels are located below the conveying rollers and their rotation axes are vertically arranged. A transmission chain that moves in a closed loop around the two transmission wheels is sleeved outside the two transmission wheels; both of the two push plates are connected below with driving seats that are arranged downward through the gaps between adjacent conveying rollers. Sliding seats are provided at the bottoms of both ends of the two driving seats. A guiding rod arranged along the width direction of the adjustment frame is provided on the adjustment frame, and the sliding seats are slidably connected with the guiding rod; connection seats respectively corresponding to both sides of the transmission chain are also provided at the bottoms of the two driving seats, and one of the driving seats is connected with a side push cylinder for driving it to slide horizontally.
[0013] By adopting the above technical solution, the side push cylinder drives one of the driving seats to drive the push plate to slide along the guiding rod. Under the connection action of the connection seat and the transmission chain, it drives the transmission chain to engage and move with the transmission wheel. During the process of the closed-loop movement of the transmission chain, the other side drives the corresponding driving seat and push plate to move through the corresponding connection seat, and the sliding directions of the two push plates are synchronously approaching or moving away from each other, thus realizing driving the two push plates to slide synchronously close to or away from each other. Among them, under the cooperation of the sliding seat and the guiding rod, the limit and guiding of the movement of the push plate are realized, ensuring the stability of the movement of the push plate.
[0014] Furthermore, the transfer mechanism includes a transfer frame arranged along the feeding direction and a transfer belt installed on the transfer frame. The upper end surface of the transfer belt is flush with the upper end surface of the transfer frame, and a pushing component is provided on the transfer frame; the pushing component includes a pushing plate arranged above one side of the transfer belt along the length direction of the transfer frame. An L-shaped mounting frame with an opening downward is provided on the side of the transfer frame away from the pushing plate. A pushing cylinder arranged along the width direction of the transfer frame and located above the transfer belt is provided on the L-shaped mounting frame. The piston rod of the pushing cylinder is close to the pushing plate and is connected with one end of the pushing plate through a vertically arranged connecting rod.
[0015] By adopting the above technical solution, the intermittent feeding of the film is realized by using the transfer mechanism arranged between the first metal detection mechanism and the adjustment mechanism, avoiding the accumulation of the film. A pushing component is arranged at the transfer mechanism. When the first metal detection mechanism detects that there is a metal defect in the film, the pushing cylinder contracts and drives the pushing plate to slide towards the side close to the L-shaped mounting frame through the connecting rod, pushing the defective film off the transfer belt. In this way, the film that fails the first metal detection does not need to be subjected to the second metal detection again, avoiding repeated detection processes and improving the overall service life of the device. Among them, by using the L-shaped mounting frame arranged on the opposite side of the pushing plate, the pushing cylinder is located above the transfer belt, avoiding increasing the width at the transfer mechanism, saving floor space and ensuring safety.
[0016] Further, the first metal detection mechanism includes a first detection frame arranged along the feeding direction. A first conveyor belt arranged along its length direction is installed on the first detection frame. A first detector arranged along its width direction and opening downward is installed on the first detection frame; the first detector is communicatively feedback-connected to a first alarm, and the first alarm is communicatively feedback-controlled and connected to the pushing cylinder.
[0017] By adopting the above technical solution, the first conveyor belt conveys the film forward. When the film passes through the first detector, if there is metal in the film and the metal is not parallel to the magnetic induction lines of the first detector, it will be detected by the first detector, realizing the first metal detection of the film. If the first detector detects that there is metal in the film, the first alarm will sound an alarm and communicatively feedback to the pushing cylinder to control the pushing cylinder to drive the pushing plate to push the defective film off the transfer belt when the defective film moves to the pushing component, realizing the linkage between the first metal detection mechanism and the pushing component.
[0018] Further, the second metal detection mechanism includes a second detection frame arranged along the feeding direction. A second conveyor belt arranged along its length direction is installed on the second detection frame. A second detector arranged along its width direction and opening downward is installed on the second detection frame; the second detector is communicatively feedback-connected to a second alarm. A marking component is arranged at the discharge end of the second detection frame, and the second alarm is communicatively feedback-controlled and connected to the marking component.
[0019] By adopting the above technical solution, the second conveyor belt conveys the film forward. When the film passes through the second detector, if there is metal parallel to the magnetic induction lines of the first detector in the film and it is not detected by the first detector, after being turned by the turning assembly, it can be detected by the second detector, realizing the second metal detection of the film. When the second detector detects that there is metal in the film, the second alarm emits an alarm, and communicates and feeds back to the marking assembly to control the marking assembly to work when the unqualified film moves to this position, marking the film with unqualified metal detection, facilitating the staff to classify the film and avoiding the mixing of qualified and unqualified films.
[0020] Further, the marking assembly includes an L-shaped marking frame with its lower end installed on one side of the second detection frame and opening downward. A marking box located above the second conveyor belt is vertically slidably installed on the L-shaped marking frame, and the marking box is connected with a marking cylinder for driving its vertical sliding; a marking cotton is detachably installed at the bottom of the marking box, a solution cavity for containing the marking liquid is arranged above the marking box, and a liquid discharge hole communicating with the upper end face of the marking cotton is arranged at the bottom of the solution cavity.
[0021] By adopting the above technical solution, when the unqualified film moves below the marking box, the marking cylinder drives the marking box to move vertically downward until the bottom of the marking cotton abuts against the upper end face of the film, and the marking liquid on the marking cotton is printed and adhered to the upper end face of the film, realizing the marking of the unqualified film. Among them, the marking liquid in the solution cavity is added to the marking cotton through the liquid discharge hole to ensure the continuous marking effect of the marking cotton.
[0022] In summary, the utility model has the following beneficial effects:
[0023] 1. By setting the first metal detection mechanism and the second metal detection mechanism, the film is subjected to two metal detections, and a turning assembly is arranged between the two metal detections to turn the film by 90°, so that the two detection directions of the film are perpendicular, avoiding the parallelism between the metal in the film and the magnetic force lines of the metal detection and resulting in missed detection, improving the accuracy of metal detection and ensuring the quality of the film stored in the warehouse;
[0024] 2. By setting the side-pushing assembly to adjust the position of the film before turning, it is ensured that the film can accurately move to the turning assembly to be turned, and the stability of the film during the turning process is ensured;
[0025] 3. By setting the pushing component at the transfer mechanism, the film with unqualified first metal detection is directly pushed down, and there is no need to perform the second metal detection again, avoiding the repeated detection process and improving the overall service life of the device;
[0026] 4. The utility model provides a marking component at the discharging end of the second metal detection mechanism to mark the films that fail the metal detection, so as to facilitate the staff to classify the films and avoid the mixing of qualified films and unqualified films. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of a film continuous metal detection device;
[0028] Figure 2 It is a structural schematic diagram of an adjustment mechanism in a film continuous metal detection device;
[0029] Figure 3 It is a structural schematic diagram of a material pushing component in a film continuous metal detection device;
[0030] Figure 4 It is a schematic diagram of the structure of a steering assembly in a film continuous metal detection device;
[0031] Figure 5 The invention is a structural schematic diagram of a marking component in a film continuous metal detection device.
[0032] In the figure, 1, feeding mechanism; 11, feeding rack; 12, feeding belt; 2, first metal detection mechanism; 21, first detection rack; 22, first conveyor belt; 23, first detector; 24, first alarm; 3, transfer mechanism; 31, transfer rack; 32, transfer belt; 33, push assembly; 34, push plate; 35, L-shaped mounting frame; 36, push cylinder; 37, connecting rod; 4, adjustment mechanism; 41, adjustment rack; 42, conveyor roller; 43, guide rod; 5, side push assembly; 51, push plate; 52, drive seat; 53, sliding seat; 54 , connecting seat; 55, driving assembly; 56, transmission wheel; 57, transmission chain; 58, side push cylinder; 6, steering assembly; 61, cross lifting frame; 62, first lifting rod; 63, second lifting rod; 64, lifting and rotating cylinder; 65, dividing groove; 651, making way; 7, second metal detection mechanism; 71, second detection frame; 72, second conveyor belt; 73, second detector; 74, second alarm; 8, marking assembly; 81, L-shaped marking frame; 82, marking box; 83, solution chamber; 84, drainage hole; 85, marking cotton; 86, marking cylinder. DETAILED DESCRIPTION
[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0034] A film continuous metal detection device, such as Figure 1As shown in the figure, it includes a loading mechanism 1, a first metal detection mechanism 2, a transfer mechanism 3, an adjustment mechanism 4, and a second metal detection mechanism 7 arranged in sequence along the feeding direction. One end of the adjustment mechanism 4 close to the transfer mechanism 3 is provided with a side push component 5, and one end close to the second metal detection mechanism 7 is provided with a steering component 6. The film to be detected is loaded by the loading mechanism 1 and conveyed to the first metal detection mechanism 2 for the first metal detection. Then it is conveyed to the adjustment mechanism 4 through the transfer mechanism 3. The side push component 5 in the adjustment mechanism 4 pushes the film from both sides, adjusts the position of the film to align with the steering component 6, and then the film is conveyed to the steering component 6. The steering component 6 rotates the film by 90°, and the rotated film is conveyed to the second metal detection mechanism 7 for the second metal detection.
[0035] As Figure 1 shown, in this way, the film is subjected to two metal detections by the first metal detection mechanism 2 and the second metal detection mechanism 7, and the film is rotated by 90° by the steering component 6 between the two metal detections, so that the two detection directions of the film are perpendicular, avoiding missed detection caused by the metal in the film being parallel to the magnetic field lines of the metal detection, improving the accuracy of metal detection, and ensuring the quality of the film stored in the warehouse. In this embodiment, the various mechanism components in the device are controlled by an automatic control technology such as PLC to control their automatic operation and linkage, realizing the intermittent conveying of the film, ensuring the continuity of the detection work, avoiding film accumulation. The automatic control technology is an existing technology and will not be elaborated too much. Among them, in this embodiment, the film for each detection is a group of multiple pieces packaged by a film.
[0036] The specific structures of the following mechanism components will be described in detail in sequence along the feeding direction.
[0037] As Figure 1 shown, the loading mechanism 1 includes a loading rack 11 arranged along the feeding direction and a loading belt 12 installed on the loading rack 11. The loading belt 12 moves cyclically along the feeding direction to realize the forward conveying of the film to be detected. The first metal detection mechanism 2 includes a first detection rack 21 arranged along the feeding direction. A first conveyor belt 22 is installed on the first detection rack 21 along its length direction. A first detector 23 is installed on the first detection rack 21 along its width direction and opening downward. The first detector 23 is communicatively and feedback-connected to a first alarm 24. The first conveyor belt 22 conveys the film forward. When the film passes through the first detector 23, if there is metal in the film and the metal is in a non-parallel state with the magnetic induction lines of the first detector 23, it will be detected by the first detector 23, and the first alarm 24 will give an alarm, realizing the first metal detection of the film.
[0038] As Figure 1As shown in the figure, the transfer mechanism 3 includes a transfer rack 31 arranged along the feeding direction and a transfer belt 32 installed on the transfer rack 31. The transfer belt 32 moves in a cycle along the feeding direction to realize the forward conveying of the film that has passed the first metal detection. In this embodiment, the upper end surface of the transfer belt 32 is flush with the upper end surface of the transfer rack 31, and a pusher assembly 33 that is communicatively feedback-controlled and connected to the first metal detection mechanism 2 is provided on the transfer rack 31. When the first metal detection mechanism 2 detects that the film contains metal, the pusher assembly 33 is communicatively feedback-controlled to push the unqualified film off the transfer belt 32 when it moves to this position, without the need for a second metal detection, simplifying the detection procedure and increasing the service life of the device.
[0039] Specifically, as Figure 1 shown, the pusher assembly 33 includes a pusher plate 34 arranged on one side of the transfer belt 32 along the length direction of the transfer rack 31, and the pusher plate 34 is located above the transfer belt 32; on the side of the transfer rack 31 away from the pusher plate 34, there is an L-shaped mounting rack 35 with an opening downward. A pusher cylinder 36 arranged along the width direction of the transfer rack 31 and located above the transfer belt 32 is provided on the L-shaped mounting rack 35. The piston rod of the pusher cylinder 36 is close to the pusher plate 34 and is connected to one end of the pusher plate 34 through a vertically arranged connecting rod 37. The first alarm 24 is communicatively feedback-controlled and connected to the pusher cylinder 36. When the first metal detection mechanism 2 detects that the film is unqualified due to the presence of metal, while the first alarm 24 gives an alarm, a signal is fed back to the pusher cylinder 36. When the unqualified film moves to correspond to the pusher plate 34, the pusher cylinder 36 contracts to drive the pusher plate 34 to slide towards the side close to the L-shaped mounting rack 35 through the connecting rod 37, pushing the unqualified film off the transfer belt 32, and then the pusher cylinder 36 extends to drive the pusher plate 34 to reset.
[0040] In this embodiment, as Figure 2 shown, the adjustment mechanism 4 includes an adjustment rack 41 arranged along the feeding direction. A number of conveying rollers 42 arranged along the width direction of the adjustment rack 41 are rotatably mounted on the adjustment rack 41 in a positioning manner to convey the film that has passed the first detection forward through the conveying rollers 42. As Figure 2 and Figure 3 shown, the side pusher assembly 5 includes two pusher plates 51 arranged along the length direction of the adjustment rack 41 and respectively close to both sides of the adjustment rack 41. The two pusher plates 51 are symmetrically arranged with respect to the steering assembly 6 and are located above the conveying rollers 42. Among them, both the lower parts of the two pusher plates 51 are connected with driving seats 52 that pass through the gaps between adjacent two conveying rollers 42 and are arranged downward. Sliding seats 53 are provided at both ends of the bottoms of the two driving seats 52. A guide rod 43 arranged along the width direction of the adjustment rack 41 is provided on the adjustment rack 41. The sliding seats 53 are slidably connected to the guide rod 43, and the two driving seats 52 are connected with a driving assembly 55 that drives them to slide synchronously closer to or away from each other.
[0041] Specifically, as Figure 2 andFigure 3 As shown, the driving assembly 55 includes two transmission wheels 56 respectively close to both sides of the adjustment frame 41 and mounted on the adjustment frame 41 for positioning and rotation. The transmission wheels 56 are located below the conveying roller 42 and the rotation axis is vertically arranged. The two transmission wheels 56 are covered with a transmission chain 57 that moves around the closed loop. The bottoms of the two driving seats 52 are also provided with connecting seats 54 that are connected to both sides of the transmission chain 57 in a one-to-one correspondence. One of the driving seats 52 is connected to a side push cylinder 58 that drives it to slide horizontally, and the side push cylinder 58 is located directly below the adjustment frame 41.
[0042] like Figure 2 and Figure 3 As shown, when the film moves between the two push plates 51 in the side push assembly 5, the side push cylinder 58 drives one of the drive seats 52 to drive the push plate 51 to slide along the guide rod 43 toward the corresponding side of the film, and under the connection between the connecting seat 54 and the transmission chain 57, the transmission chain 57 is driven to mesh with the transmission wheel 56 and move. During the closed-loop movement of the transmission chain 57, the other side drives the corresponding drive seat 52 and the push plate 51 through the corresponding connecting seat 54 to move toward the corresponding side of the film, so that the two push plates 51 are driven to slide synchronously and close to each other, and the film is pushed and adjusted from both sides of the film. After the film is pushed and adjusted, the side push cylinder 58 is reset to drive the two push plates 51 to slide synchronously away from each other.
[0043] In this embodiment, if Figure 2 and Figure 4 As shown, the steering assembly 6 includes a cross-lifting frame 61 that slides vertically and rotates around a vertical axis. The cross-lifting frame 61 includes a first lifting rod 62 and a second lifting rod 63 that are respectively arranged along the length direction and width direction of the adjustment frame 41. The bottom of the cross-lifting frame 61 is connected to a lifting and rotating cylinder 64 that drives it to slide vertically and rotate. A separation groove 65 that is arranged along its length direction and has an upper end opening is provided on the adjustment frame 41. The conveying rollers 42 located at the separation groove 65 are two coaxially arranged and are respectively located on both sides of the separation groove 65, and are positioned and rotated on the side wall of the separation groove 65 and the adjustment frame 41. The separation groove 65 cooperates with the first lifting rod 62 and the second lifting rod 63, and a clearance opening 651 is provided on the separation groove 65. When the first lifting rod 62 or the second lifting rod 63 is perpendicular to the separation groove 65, it is stuck in the clearance opening 651. In normal state, the first lifting rod 62 and the second lifting rod 63 are respectively located in the partition groove 65 and in the gap between two adjacent conveying rollers 42 along the length direction of the adjustment frame 41, and the partition groove 65 and the upper end of the cross lifting frame 61 are lower than the upper end of the conveying roller 42.
[0044] like Figure 2 and Figure 4As shown, the conveying rollers 42 on both sides are separated by the separation groove 65, and the gap between adjacent conveying rollers 42 and the clearance opening 651 are matched to provide accommodation space for the first lifting rod 62 and the second lifting rod 63, so as to ensure that the conveying roller 42 smoothly conveys the film to the top of the cross-lifting frame 61. When the film moves to the top of the cross-lifting frame 61, the lifting and rotating cylinder 64 first drives the cross-lifting frame 61 to rise as a whole, and the first lifting rod 62 and the second lifting rod 63 lift the film upward until the cross-lifting frame 61 is completely above the conveying roller 42; the lifting and rotating cylinder 64 then drives the cross-lifting frame 61 as a whole to drive the film to rotate 90°. After the film rotates to the right position, the lifting and rotating cylinder 64 drives the cross-lifting frame 61 to move vertically downward as a whole to reset, and the film is placed on the conveying roller 42, and the rotated film is conveyed to the second metal detection mechanism 7 through the conveying roller 42. In this way, the film is rotated 90° by using the steering assembly 6, so that the detection direction of the film at the second metal detection mechanism 7 is perpendicular to the detection direction at the first metal detection mechanism 2, avoiding missed detection due to the parallelism between the metal in the film and the magnetic field lines of the metal detection.
[0045] In this embodiment, if Figure 5 As shown, the second metal detection mechanism 7 includes a second detection frame 71 arranged along the feeding direction, a second conveyor belt 72 arranged along the length direction thereof is installed on the second detection frame 71, a second detector 73 arranged along the width direction thereof and opened downward is installed on the second detection frame 71, and the second detector 73 is connected to the second alarm 74 for communication feedback. The second conveyor belt 72 conveys the film forward. When the film passes through the second detector 73, if there is metal in the film that is parallel to the magnetic flux lines of the first detector 23 and is not detected by the first detector 23, it can be detected by the second detector 73 after being turned by the steering assembly 6, and the second alarm 74 sounds an alarm, thereby realizing the second metal detection of the film. If no alarm is sounded in both detections, it indicates that the film is qualified. Among them, the first alarm 24 and the second alarm 74 are both sound and light alarms, which are convenient for the staff to identify the alarm position in time.
[0046] like Figure 5 As shown, in order to avoid mixing of unqualified films, a marking component 8 connected to the second alarm 74 for communication feedback control is provided at the discharge end of the second detection frame 71. When the second alarm 74 sounds an alarm, the communication feedback control marking component 8 marks the unqualified films moved there, making it easier for staff to classify the films.
[0047] Specifically, Figure 5As shown in the figure, the marking component 8 includes an L-shaped marking frame 81 with its lower end mounted on one side of the second detection frame 71 and opening downward. A marking box 82 located above the second conveyor belt 72 is vertically slidably mounted on the L-shaped marking frame 81. A marking cotton 85 is detachably mounted at the bottom of the marking box 82. Above the marking box 82, there is a solution chamber 83 for containing the marking liquid, and a liquid discharge hole 84 communicating with the upper end surface of the marking cotton 85 is provided at the bottom of the solution chamber 83. The marking box 82 is connected to a marking cylinder 86 that drives its vertical sliding, and the marking cylinder 86 is communicatively feedback-controlled and connected to the second alarm 74. When the unqualified film moves below the marking box 82, the marking cylinder 86 drives the marking box 82 to move vertically downward until the bottom of the marking cotton 85 abuts against the upper end surface of the film, and the marking liquid on the marking cotton 85 is printed and adhered to the upper end surface of the film, realizing the marking of the unqualified film.
[0048] The working principle and usage method of the present utility model:
[0049] The film to be detected is fed by the feeding mechanism 1 and conveyed to the first metal detection mechanism 2 for the first metal detection. If the first metal detection is qualified, the transfer mechanism 3 conveys the film to the adjustment mechanism 4 for side pushing and turning, so as to perform the second metal detection on the film. If the first metal detection is unqualified, the first alarm 24 emits an alarm, and at the same time, the signal is fed back to the pushing cylinder 36. When the unqualified film moves to correspond to the pushing plate 34, the pushing cylinder 36 contracts to drive the pushing plate 34 to slide towards the side close to the L-shaped mounting frame 35, and the unqualified film is pushed down from the transfer belt 32.
[0050] When the film qualified in the first metal detection moves between the two pushing plates 51 in the side pushing component 5, the side pushing cylinder 58 drives one of the driving seats 52 to drive the pushing plate 51 to slide along the guiding rod 43 towards the side close to the edge of the film. During the closed-loop movement of the connecting seat 54 driving the transmission chain 57, the other driving seat 52 drives the pushing plate 51 to move towards the side close to the edge of the film, realizing the synchronous sliding and approaching of the two pushing plates 51 to push and adjust the position of the film from both sides of the film. After the film pushing is completed, the side pushing cylinder 58 resets to drive the two pushing plates 51 to slide away from each other synchronously, and the conveying roller 42 continues to convey the film forward until it moves directly above the cross-shaped lifting frame 61. The cross-shaped lifting frame 61 is driven by the lifting and rotating cylinder 64 to first rise, then rotate 90°, and finally fall and reset, realizing the rotation of the film by 90°, so that the detection direction of the film at the second metal detection mechanism 7 is perpendicular to the detection direction at the first metal detection mechanism 2.
[0051] The conveying roller 42 conveys the turned film to the second metal detection mechanism 7 for the second metal detection. If the second metal detection is qualified, the second conveyor belt 72 sends out the qualified film. If the second metal detection is unqualified, the second alarm 74 gives an alarm and at the same time feeds back a signal to the marking cylinder 86 in the marking assembly 8. When the unqualified film moves below the marking box 82, the marking cylinder 86 drives the marking box 82 to move vertically downward until the bottom of the marking cotton 85 abuts against the upper end surface of the film, and the marking liquid on the marking cotton 85 adheres to the upper end surface of the film, realizing the marking of the unqualified film, which is convenient for the staff to classify the film.
[0052] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in related fields. And the changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.
Claims
1. A film continuous metal detection device, characterized in that: The invention comprises a feeding mechanism (1), a first metal detection mechanism (2), a transfer mechanism (3), an adjustment mechanism (4) and a second metal detection mechanism (7) which are sequentially arranged along a feeding direction. The adjustment mechanism (4) comprises an adjustment frame (41) arranged along the feeding direction. A plurality of conveying rollers (42) arranged along the width direction are mounted on the adjustment frame (41) in a positional and rotatable manner along its length direction. The adjustment mechanism (4) is provided with a side push assembly (5) at one end close to the transfer mechanism (3), and a steering assembly (6) at one end close to the second metal detection mechanism (7). The steering assembly (6) comprises a cross-lifting frame (61) which slides vertically and is positionally and rotatably arranged around a vertical axis. The cross-lifting frame (61) comprises a first lifting rod (62) and a second lifting rod (63) which are respectively arranged along the length direction and the width direction of the adjustment frame (41). The bottom of the cross-lifting frame (61) is connected to a lifting and rotating cylinder (64) which drives the cross-lifting frame (61) to slide vertically and be positionally and rotatably arranged. In normal state, the upper end surface of the cross-lifting frame (61) is lower than the upper end of the conveying roller (42).
2. A film continuous metal detection device according to claim 1, characterized in that: The adjustment frame (41) is provided with a partition groove (65) which is arranged along its length direction and has an open upper end. Two conveying rollers (42) located at the partition groove (65) are coaxially arranged and respectively located on both sides of the partition groove (65), and are rotatably mounted on the side wall of the partition groove (65) and the adjustment frame (41); the partition groove (65) cooperates with the first lifting rod (62) and the second lifting rod (63), and the partition groove (65) is provided with a clearance opening (651), and the first lifting rod (62) or the second lifting rod (63) is stuck in the clearance opening (651) when it is perpendicular to the partition groove (65); in normal state, the first lifting rod (62) and the second lifting rod (63) are respectively located in the partition groove (65) and in the gap between two adjacent conveying rollers (42), and the upper ends of the partition groove (65) and the cross lifting frame (61) are lower than the upper ends of the conveying rollers (42).
3. A film continuous metal detection device according to claim 2, characterized in that: The side push assembly (5) comprises two push plates (51) arranged along the length direction of the adjustment frame (41), the two push plates (51) are respectively close to the two sides of the adjustment frame (41) and are located above the conveying roller (42), the two push plates (51) are symmetrically arranged about the separation groove (65) and are slidably installed on the adjustment frame (41) along the length direction of the conveying roller (42), and the two push plates (51) are also connected to a driving assembly (55) for driving them to slide closer or farther synchronously.
4. A film continuous metal detection device according to claim 3, characterized in that: The driving assembly (55) comprises two transmission wheels (56) respectively close to both sides of the adjustment frame (41) and mounted on the adjustment frame (41) for positioning and rotation. The transmission wheels (56) are located below the conveying roller (42) and the rotation axis is vertically arranged. The two transmission wheels (56) are sheathed with a transmission chain (57) that moves around the closed loop. The two push plates (51) are connected to a driving seat (52) that passes through the gap between two adjacent conveying rollers (42) and is arranged downward. Sliding seats (53) are arranged at the bottom of both ends of the two driving seats (52). The adjustment frame (41) is provided with a guide rod (43) arranged along its width direction. The sliding seat (53) is slidably connected to the guide rod (43). The bottoms of the two driving seats (52) are also provided with connecting seats (54) that are connected to the two sides of the transmission chain (57) in a one-to-one correspondence. One of the driving seats (52) is connected to a side push cylinder (58) that drives it to slide horizontally.
5. The film continuous metal detection device according to claim 1, characterized in that: The transfer mechanism (3) comprises a transfer frame (31) arranged along the feeding direction and a transfer belt (32) installed on the transfer frame (31); the upper end surface of the transfer belt (32) is flush with the upper end surface of the transfer frame (31), and a pushing assembly (33) is provided on the transfer frame (31); the pushing assembly (33) comprises a pushing plate (34) arranged above one side of the transfer belt (32) along the length direction of the transfer frame (31); a side of the transfer frame (31) away from the pushing plate (34) is provided with an L-shaped mounting frame (35) with an opening facing downward; the L-shaped mounting frame (35) is provided with a pushing cylinder (36) arranged along the width direction of the transfer frame (31) and located above the transfer belt (32); the piston rod of the pushing cylinder (36) is close to the pushing plate (34) and is connected to one end of the pushing plate (34) through a vertically arranged connecting rod (37).
6. A film continuous metal detection device according to claim 5, characterized in that: The first metal detection mechanism (2) comprises a first detection frame (21) arranged along the feeding direction, the first detection frame (21) is provided with a first conveyor belt (22) arranged along its length direction, and the first detection frame (21) is provided with a first detector (23) arranged along its width direction and opening downward; the first detector (23) is connected to a first alarm (24) for communication feedback, and the first alarm (24) is connected to a push cylinder (36) for communication feedback control.
7. A film continuous metal detection device according to claim 1, characterized in that: The second metal detection mechanism (7) comprises a second detection frame (71) arranged along the feeding direction, the second detection frame (71) is provided with a second conveyor belt (72) arranged along its length direction, the second detection frame (71) is provided with a second detector (73) arranged along its width direction and opening downward; the second detector (73) is connected to a second alarm (74) for communication feedback, the discharge end of the second detection frame (71) is provided with a marking component (8), and the second alarm (74) is connected to the marking component (8) for communication feedback control.
8. A film continuous metal detection device according to claim 7, characterized in that: The marking assembly (8) comprises an L-shaped marking frame (81) whose lower end is mounted on one side of the second detection frame (71) and whose opening faces downward; a marking box (82) located above the second conveyor belt (72) is vertically slidably mounted on the L-shaped marking frame (81), and the marking box (82) is connected to a marking cylinder (86) for driving the marking box (82) to slide vertically; marking cotton (85) is detachably mounted on the bottom of the marking box (82); a solution chamber (83) for containing marking liquid is provided above the marking box (82), and a drainage hole (84) communicating with the upper end surface of the marking cotton (85) is provided at the bottom of the solution chamber (83).