A secondary verification system for filter rod physical indicators

Abstract

The present invention discloses a secondary verification system for filter rod physical indicators, comprising: four single-tube indicator primary verification devices that perform a first statistical calculation on the physical indicators of the filter rod; if the physical indicators of the tested filter rod are defective, the four-tube indicator secondary verification device extracts two filter rods with defective physical indicators, and performs two second statistical calculations on the physical indicators of the filter rods respectively; if the second statistical calculation result has the same defect item bias as the first statistical calculation result, an alarm is called to remind the operator to intervene and perform equipment maintenance or structural parameter adjustment. The technical content disclosed by the present invention is to interact with each single-tube indicator primary verification device through the four-tube indicator secondary verification device to quickly perform a secondary verification on the defective items, reduce the occurrence of alarms when filter rod defect items appear, and automatically locate the filter rod box position where the defective filter rod at the sampling point is located and the specific height in a certain box, so as to facilitate quality tracing and reduce the number of discarded filter rods.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette making equipment, and more particularly to a secondary verification system for physical indicators of a filter rod. Background Art

[0002] The physical indicators of filter rods are related to the stability of rolling and forming operations and the draw resistance and appearance defect indicators of finished cigarettes. In particular, when the circumference exceeds a certain deviation, it will lead to blockage of the entrance of the filter rod receiving device of the cigarette making machine, air leakage of cigarettes, and poor splicing of the tipping paper. When the draw resistance exceeds the standard, it will affect the sensory quality and will be detrimental to the homogenization of cigarette products.

[0003] In order to timely grasp the fluctuation of physical indicators of filter rods produced by filter rod forming equipment, an online suction device is installed at the entrance of the tray loading machine, and compressed air is used to convey the filter rods through the conveying elbow to the entrance of the integrated measuring platform. After the detection device at the entrance of the pipeline detects the filter rod, compressed air is used to form a reverse buffer. The filter rod floats in the pipeline and then falls into the measuring channel of the integrated measuring platform by its own weight. In order to reduce consumption, the integrated test bench is set up: one filter rod is sucked every 12 seconds, and 30 consecutive filter rods are grouped together for statistical calculation of physical indicators (quality, length, circumference, suction resistance, roundness). The current KDF4 forming machine produces conventional filter rods at a speed of 6000 rods / minute, and each filter rod box can hold 4600 filter rods. The two ends of the existing filter rod box are clamped by cylinders. As the YJ37 tray loading machine continuously pushes a row of filter rods horizontally, the height of the filter rod end face is gradually lowered. Finally, it is triggered by the magnetic switches at both ends of the cylinder, and the signal that the filter rod box is full is emitted. No., for the next round of loading. If the circumference or resistance to suction index exceeds the limit, if the second defective filter rods still exist, about 1,200 filter rods may not be able to be verified for the second time within 12 seconds. It is necessary to manually grab a certain number of filter rods and take them to the comprehensive test bench for re-measurement. When the measurement results come out, 2,500 defective filter rods may be produced. Because it is impossible to determine which filter box the defective filter rod is in, it is even more impossible to determine the specific location of the defective filter rod. Therefore, the two most recent boxes of filter rods are directly treated as discarded filter rods, resulting in a waste of smoking materials.

[0004] Since the existing integrated test bench has no alarm function, if the operator does not pay attention to the measurement results, he may enter the next set of measurement interfaces. The recent fluctuations in physical indicators cannot be observed manually. Only through historical test data can the approximate location of the defective filter rod box be traced back and inferred over time, and the amount of filter rod waste will increase.

[0005] Existing cigarette companies install alarm devices on integrated test benches. When defective data is detected on the integrated test bench, the alarm will sound, prompting the operator to pay attention to the equipment's operating status. If the same defective item is found in two consecutive filter rod measurements, the operator is required to manually send the filter rod for retesting. If the retest still shows the same fault, the equipment needs to be adjusted or maintained. Process quality personnel use MES inspection data statistics and workshop video to monitor whether the operator is operating in accordance with regulations. This system can effectively prevent the occurrence of large-scale filter rods with physical indicator defects, but it requires the operator to concentrate highly, and it is difficult to accurately determine the specific filter rod box where the defective filter rod is located, resulting in serious waste of filter rods.

[0006] Therefore, how to provide a secondary verification system for the physical indicators of filter rods has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] The purpose of the present invention is to provide a secondary verification system for physical indicators of a filter rod.

[0008] According to the present invention, a filter rod physical index secondary verification system is provided, comprising four single-tube index primary verification devices and a four-tube index secondary verification device;

[0009] The four-tube indicator secondary verification device is connected to the four single-tube indicator primary verification devices through a filter rod collection channel; the four single-tube indicator primary verification devices perform a first statistical calculation on the physical indicators of the filter rods; if the physical indicators of the tested filter rods are defective, the four-tube indicator secondary verification device extracts two filter rods with defective physical indicators and performs two second statistical calculations on the physical indicators of the filter rods respectively; if the second statistical calculation result has the same defect item bias as the first statistical calculation result, an alarm is called to remind the operator to intervene and perform equipment maintenance or structural parameter adjustment.

[0010] Optionally, the system also includes: if the defect item bias of the second statistical calculation result is the same as that of the first statistical calculation result, the filter rod box where the filter rod with defective physical indicators is located and the height of the filter rod are automatically located through the filter rod box counting and height calculation device.

[0011] Optionally, the system also includes: if the second statistical calculation results of the two filter rods are within the normal range, sampling is completed; if the second statistical calculation results are abnormal, the second statistical calculation results of the two filter rods correspond to the two limits of the physical indicators, i.e., one large and one small, respectively, and the calculation is completed, then the tow is in the unpacking or tailing stage, and the tow operation is unstable.

[0012] Optionally, the four-tube index secondary verification device includes: a turntable, a base plate, a beam switch, a hollow tube, a mounting plate, bolts, a comprehensive test bench and a stepping motor;

[0013] The beam switch is installed on the top of the hollow tube, and the thread on the lower part of the hollow tube is connected and fixed with the threaded hole on the annular surface of the turntable. The turntable and the output shaft of the stepper motor are connected by a stepped shaft and a shaft key. The stepper motor passes through the middle part of the mounting plate and is fixed with two bolts. The mounting plate is fixed to the top of the integrated measuring platform by four bolts; the symmetrical axis of the bottom plate coincides with the axis of the turntable, and the bottom is fixed to the upper end surface of the mounting plate by three evenly distributed bolts.

[0014] Optionally, the filter rod box counting and height calculation device includes: two laser sensors and a diffuse reflection switch;

[0015] The first laser sensor is installed above the top of one side of the box body to measure the first height H1;

[0016] The second laser sensor is installed above the center top of the box to measure the second height H2;

[0017] The diffuse reflection switch is set on one side of the filter rod box conveying channel, and counts the number of filter rod boxes J. During the working time period of the equipment, J is continuously accumulated from 0, and the number of filter rod boxes J produced and the height H3 of the filter rods in the filter rod box when the filter rod box is about to be replaced are displayed in real time.

[0018] Optionally, the method of extracting two filter rods with defective physical indicators and performing two second statistical calculations of the physical indicators of the filter rods on the four-tube indicator secondary verification device comprises:

[0019] Two filter rods with defective physical indicators are extracted at intervals of 3 seconds. After the filter rods go through the sending and deceleration stages, the shooting switch detects the signal of the filter rod and enters the hollow tube. The stepper motor drives the turntable to rotate a certain angle and then stops rotating above the test entrance of the comprehensive test bench. A hole is opened on the bottom plate, and the filter rod enters the comprehensive test bench through the hole. The comprehensive test bench performs a second statistical calculation of the filter rod physical indicators for the defective items based on the defect detection items and machine information.

[0020] Optionally, the machine information includes: the time when the defect occurs, the height of the filter rod box and the production data of the molding equipment.

[0021] Optionally, the method for automatically locating the filter rod box where the filter rod with defective physical indicators is located, and the height at which the filter rod is located, comprises:

[0022] When S>4600, the height of the defective filter rod = (S-INT(S / 4600)*4600)*H3 / 4600, and the number of filter rod boxes where the defective filter rod is located = J+INT(S / 4600)+1;

[0023] When S≤4600, the height of the defective filter rod = (S / 4600)*H3, and the number of filter rod boxes where the defective filter rod is located = J+1;

[0024] Where S is the total number of filter rods, and S = (H1 + H0 - H2) * 4600 / H3 + N; H0 is the height of the filter rod box; N = the total number of filter rods in the channel from the filter rod online sampling point to the filter rod tray machine about to push into the filter rod box.

[0025] According to the technical content disclosed in the present invention, the following beneficial effects are achieved: through the four-tube indicator secondary verification device, interaction is carried out with each single-tube indicator primary verification device to quickly perform secondary verification on defective items, thereby reducing the occurrence of alarms when filter rod defects occur, and being able to automatically locate the position of the filter rod box where the defective filter rod at the sampling point is located and the specific height of the filter rod box in a certain box, thereby facilitating quality traceability and reducing the number of discarded filter rods.

[0026] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0028] Figure 1 Schematic diagram of a four-tube indicator secondary verification device provided according to an embodiment;

[0029] Figure 2 A schematic diagram of filter rod extraction according to an embodiment;

[0030] Figure 3 Schematic diagram of a filter rod box counting and height calculation device provided by an embodiment from a first perspective;

[0031] Figure 4 Schematic diagram of a filter rod box counting and height calculation device provided by an embodiment from a second perspective.

[0032] Explanation of the accompanying reference numerals: 1-turntable, 2-base plate, 3-radiation switch, 4-hollow tube, 5-mounting plate, 6-bolt, 7-integrated test bench, 8-stepping motor, 9-laser sensor, 10-diffuse reflection switch, 21-hole. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] According to the present invention, a secondary verification system for filter rod physical indicators is provided, comprising four single-tube indicator primary verification devices and four-tube indicator secondary verification devices; the verification devices are connected; the four single-tube indicator primary verification devices perform a first statistical calculation on the physical indicators of the filter rods; if the physical indicators of the tested filter rods are defective, the four-tube indicator secondary verification device extracts two filter rods with defective physical indicators and performs two second statistical calculations on the physical indicators of the filter rods respectively; if the second statistical calculation result has the same defect item deviation as the first statistical calculation result, an alarm is called to remind the operator to intervene and perform equipment maintenance or structural parameter adjustment.

[0039] The system further includes: if the defect item bias of the second statistical calculation result is the same as that of the first statistical calculation result, the filter rod box counting and height calculation device automatically locates the filter rod box where the filter rod with defective physical indicators is located, and the height of the filter rod.

[0040] The system also includes: if the second statistical calculation results of the two filter rods are within the normal range, sampling is completed; if the second statistical calculation results are abnormal, the second statistical calculation results of the two filter rods correspond to two limits of the physical indicator, i.e., one large and one small, respectively, and the calculation is completed, then the tow is in the unpacking or tailing stage, and the tow operation is unstable.

[0041] like Figure 1 and Figure 2As shown, the four-tube index secondary verification device includes: a turntable 1, a base plate 2, a shooting switch 3, a hollow tube 4, a mounting plate 5, bolts 6, a comprehensive test bench 7 and a stepper motor 8; the shooting switch 3 is installed on the top of the hollow tube 4, and the thread at the lower part of the hollow tube 4 is connected and fixed with the threaded hole on the annular surface of the turntable 1. The turntable 1 and the output shaft of the stepper motor 8 are connected with the stepped shaft and the shaft key. The stepper motor passes through the middle part of the mounting plate 5 and is fixed with two bolts 6. The mounting plate 5 is fixed to the top of the comprehensive test bench 7 by four bolts 6; the symmetrical axis of the base plate 2 coincides with the axis of the turntable 1, and the base plate 2 is fixed to the upper end face of the mounting plate 5 by three evenly distributed bolts.

[0042] like Figure 3 and Figure 4 As shown, the filter rod box counting and height calculation device includes: two laser sensors 9 and a diffuse reflection switch 10; the first laser sensor 9 is installed above the top of one side of the box body to measure the first height H1; the second laser sensor 9 is installed above the top of the center of the box body to measure the second height H2; the diffuse reflection switch 10 is set on one side of the filter rod box conveying channel, and the count is the number of filter rod boxes J. During the working time period of the equipment, J is continuously accumulated from 0, and the number of filter rod boxes J produced and the height H3 of the filter rod box in the filter rod box at which the filter rod is about to be replaced are displayed in real time.

[0043] The method of extracting two filter rods with defective physical indicators by the four-tube indicator secondary verification device and performing two second statistical calculations of the physical indicators of the filter rods includes: extracting two filter rods with defective physical indicators at an interval of 3 seconds, and after the filter rods pass through the sending and deceleration stages, the shooting switch 3 detects the signal of the filter rod and enters the hollow tube 4, and the stepping motor 8 drives the turntable 1 to rotate a certain angle, and then stops rotating above the test entrance of the comprehensive test bench 7, and a hole 21 is opened on the bottom plate 2, and the filter rod enters the comprehensive test bench through the hole 21, and the comprehensive test bench performs the second statistical calculation of the physical indicators of the filter rod for the defective items according to the defect detection items and machine information.

[0044] The machine information includes: the time when the defect occurs, the height of the filter rod box and the production data of the molding equipment.

[0045] The method for automatically locating the filter rod box where the filter rod with defective physical indicators is located, and the height at which the filter rod is located, comprises:

[0046] When S>4600, the height of the defective filter rod = (S-INT(S / 4600)*4600)*H3 / 4600, and the number of filter rod boxes where the defective filter rod is located = J+INT(S / 4600)+1;

[0047] When S≤4600, the height of the defective filter rod = (S / 4600)*H3, and the number of filter rod boxes where the defective filter rod is located = J+1;

[0048] Where S is the total number of filter rods, and S = (H1 + H0 - H2) * 4600 / H3 + N; H0 is the height of the filter rod box; N = the total number of filter rods in the channel from the filter rod online sampling point to the filter rod tray machine about to be pushed into the filter rod box, set according to the specific number of filter rods from the KFD4 forming machine to the tray machine.

[0049] When the equipment is shut down for maintenance, the defective filter rod box can be determined based on the number of boxes where the defective filter rods are located and the J display data displayed by the control.

[0050] In summary, the technical content disclosed in the present invention uses a four-tube indicator secondary verification device to interact with each single-tube indicator primary verification device to quickly perform secondary verification on defective items, reduce the occurrence of alarms when filter rod defects occur, and can automatically locate the position of the filter rod box where the defective filter rod is located at the sampling point and the specific height in a certain box, which facilitates quality traceability and reduces the number of discarded filter rods.

[0051] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A secondary verification system for filter rod physical indicators, characterized in that: include: Four single-tube index primary verification devices and four-tube index secondary verification devices; The four-tube index secondary verification device is connected to the four single-tube index primary verification devices through a filter rod collection channel; the four single-tube index primary verification devices perform a first statistical calculation on the physical indicators of the filter rods; if the physical indicators of the tested filter rods are defective, the four-tube index secondary verification device extracts two filter rods with defective physical indicators and performs two second statistical calculations on the physical indicators of the filter rods respectively; if the second statistical calculation results have the same defect item deviation as the first statistical calculation results, an alarm is activated to remind the operator to intervene and perform equipment maintenance or structural parameter adjustment; The system further includes: if the second statistical calculation result and the first statistical calculation result have the same defect item deviation, automatically locating the filter rod box where the filter rod with defective physical indicators is located and the height of the filter rod by the filter rod box counting and height calculation device; The filter rod box counting and height calculation device includes: a diffuse reflection switch and two laser sensors; The first laser sensor is installed above the top of one side of the box body to measure the first height H1; The second laser sensor is installed above the center top of the box to measure the second height H2; The diffuse reflection switch is set on one side of the filter rod box conveying channel, and counts the number of filter rod boxes J. During the working period of the equipment, J is continuously accumulated from 0, and the number of filter rod boxes J produced and the height H3 of the filter rods in the filter rod box before the filter rod box is replaced are displayed in real time; The method for automatically locating the filter rod box where the filter rod with defective physical indicators is located, and the height at which the filter rod is located, comprises: When S>4600, the height of the defective filter rod is = (S-INT(S / 4600)*4600)*H3 / 4600, and the number of filter rod boxes where the defective filter rod is located = J+INT(S / 4600)+1; When S≤4600, the height of the defective filter rod is (S / 4600)*H3, and the number of filter rod boxes where the defective filter rod is located is J+1; Where S is the total number of filter rods, and S = (H1 + H0 - H2) * 4600 / H3 + N; H0 is the height of the filter rod box; N = the total number of filter rods in the channel from the filter rod online sampling point to the filter rod loading machine to be pushed into the filter rod box.

2. The filter rod physical index secondary verification system according to claim 1, characterized in that: The system also includes: if the second statistical calculation results of the two filter rods are within the normal range, sampling is completed; if the second statistical calculation results are abnormal, the second statistical calculation results of the two filter rods correspond to the two limits of the physical indicator, namely the maximum value and the minimum value, the calculation is completed, and the tow is in the unpacking or tailing stage, and the tow operation is unstable.

3. The filter rod physical index secondary verification system according to claim 1, characterized in that: The four-tube index secondary verification device includes: a turntable, a base plate, a beam switch, a hollow tube, a mounting plate, bolts, a comprehensive test bench and a stepper motor; The beam switch is installed on the top of the hollow tube, and the thread on the lower part of the hollow tube is connected and fixed with the threaded hole on the annular surface of the turntable. The turntable and the output shaft of the stepper motor are connected by a stepped shaft and a shaft key. The stepper motor passes through the middle part of the mounting plate and is fixed with two bolts. The mounting plate is fixed to the top of the integrated measuring platform by four bolts; the symmetrical axis of the bottom plate coincides with the axis of the turntable, and the bottom is fixed to the upper end surface of the mounting plate by three evenly distributed bolts.

4. The filter rod physical index secondary verification system according to claim 3, characterized in that: The method of extracting two filter rods with defective physical indicators and performing two second statistical calculations of the physical indicators of the filter rods respectively includes: Two filter rods with defective physical indicators are extracted at intervals of 3 seconds. After the filter rods go through the sending and deceleration stages, the shooting switch detects the signal of the filter rod and enters the hollow tube. The stepper motor drives the turntable to rotate a certain angle and then stops rotating above the test entrance of the comprehensive test bench. A hole is opened on the bottom plate, and the filter rod enters the comprehensive test bench through the hole. The comprehensive test bench performs a second statistical calculation of the filter rod physical indicators for the defective items based on the defect detection items and machine information.

5. The filter rod physical index secondary verification system according to claim 4, characterized in that: The machine information includes: the time when the defect occurs, the height of the filter rod box and the production data of the molding equipment.

Images