Paper bag detector

Abstract

The utility model discloses a paper bag detector, and relates to the technical field of paper bag detection equipment. The paper bag detector comprises a machine table, a first pulley, a second pulley, a tension sensor and a lead screw sliding table, the first pulley is installed on the machine table through a first installation base, the tension sensor used for detecting tension data is arranged at the side end of the installation base, and the second pulley is slidably installed on the lead screw sliding table through a second installation base. The lead screw is controlled through cooperation of the servo motor and the planetary reducer, the first pulley is rotationally installed on the first installation base, and the second pulley is rotationally installed on the second installation base. By arranging the two rotatable pulleys, the center of the paper bag handle is automatically corrected during testing, and uneven stress is prevented. The paper bag detector uses a lead screw sliding table, so that the precision is higher; the servo motor is used, so that the speed and the torque are more stable; the planetary reducer can effectively reduce the rotating speed and increase the output torque; all the structures are matched, so that no jitter problem during testing can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of paper bag detection equipment, in particular to a paper bag detection instrument. Background Art

[0002] Currently, there is no special equipment on the market that can test paper bag handles. In the production quality testing stage, the test is mainly carried out through a handheld dynamometer, that is, by installing a hook on the wall, hanging one end of the paper bag handle on the wall hook, and manually holding the dynamometer to pull the other end horizontally, and record the limit tear value. In this test method, because the tester is a variable, the pulling force is different, the pulling force point is different, the height is different, the angle is different, and it is impossible to confirm whether the force is balanced during the force application process. These factors will affect the test results, making it difficult to obtain objective and accurate values. Utility Model Content

[0003] The utility model provides a paper bag detector, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problem is:

[0005] A paper bag detector comprises a machine platform, a first pulley, a second pulley, a tension sensor, and a screw slide. The first pulley is mounted on the machine platform through a first mounting seat, and a tension sensor for detecting tension data is provided at a side end of the mounting seat. The second pulley is slidably mounted on the screw slide through a second mounting seat. The screw slide is threadedly connected to the second mounting seat through a screw, and the screw is controlled by a servo motor and a planetary reducer. The first pulley is rotatably mounted on the first mounting seat, and the second pulley is rotatably mounted on the second mounting seat.

[0006] The paper bag detector in the utility model is used to detect the handle strength of the paper bag. Before the test, the two handles of the paper bag are placed on the first pulley and the second pulley respectively; during the test, the pulley can automatically correct the center of the paper bag handle because it can rotate by itself to prevent uneven force. The paper bag detector in the utility model uses a screw slide, which has higher precision; uses a servo motor, and the speed and torque are more stable; uses a planetary reducer, which can effectively reduce the speed and increase the output torque; the coordination of various structures, firstly, the structure is simple and the use cost is low, and secondly, it can ensure that there is no jitter problem during the test and ensure the accuracy of the test.

[0007] A better technical solution: The machine is also provided with a touch screen and a printing module. The touch screen includes a control system, and the control system is electrically connected to the servo motor, the tension sensor, and the printing module.

[0008] A printing module is provided on the paper bag tester, so that after the tensile force test of the paper bag, the data information recorded in the control system can be printed out through the printing module to form a test record.

[0009] A preferred technical solution: The first pulley is a variable diameter wheel structure, wherein the radius of the middle portion is smaller than the radius of the two side portions.

[0010] A preferred technical solution: The second pulley is a variable diameter wheel structure, and the radius of the middle part is smaller than the radius of the two side parts.

[0011] The first pulley and the second pulley are further configured as variable diameter wheel structures, which to a certain extent limits the offset range of the handle during the test, so that the handle is located in the middle area of ​​the pulley for the tension test.

[0012] A better technical solution: the screw slide and the second pulley are hung and installed on the machine platform, and a limit plate is set at the bottom end of the second pulley.

[0013] A preferred technical solution: the radius of the limiting plate is greater than the radius of the second pulley.

[0014] A preferred technical solution: the screw slide also includes a slide rail, the slide rail is a double slide rail, and the second mounting seat is slidably matched with the double slide rail.

[0015] A preferred technical solution: The frame structure of the machine is constructed by combining aluminum profiles.

[0016] A preferred technical solution: The bottom end of the machine is provided with a supporting foot which is threadedly connected to the machine.

[0017] A better technical solution: four supporting legs are provided.

[0018] By adopting the above technical solution, the beneficial effects of the utility model are:

[0019] The utility model automatically corrects the center of the paper bag handle during testing by setting two rotatable pulleys to prevent uneven force. The paper bag detector in the utility model uses a screw slide with higher precision; uses a servo motor with more stable speed and torque; uses a planetary reducer to effectively reduce the speed and increase the output torque; the coordination of various structures can ensure that there is no jitter problem during testing and ensure the accuracy of the test; the operation is simple, fast and efficient, effectively replacing manual testing and realizing automated testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2It is a structural schematic diagram of the screw slide;

[0023] Figure 3 It is a schematic diagram of the structure when the first pulley and the second pulley are variable diameter wheel structures;

[0024] Figure 4 for Figure 1 A partial enlarged view of point A in the middle.

[0025] Description of main reference numerals:

[0026] 1. Machine; 2. First pulley; 3. Second pulley; 4. Tension sensor; 5. Screw slide; 6. First mounting seat; 7. Second mounting seat; 8. Screw; 9. Servo motor; 10. Planetary reducer; 11. Touch screen; 12. Print module; 13. Limit plate; 14. Aluminum profile; 15. Support foot; 31. Middle part; 32. Side parts; 33. Mounting port; 51. Slide rail. DETAILED DESCRIPTION

[0027] like Figure 1-Figure 4 As shown, a paper bag detector includes a machine 1, a first pulley 2, a second pulley 3, a tension sensor 4, and a screw slide 5. The first pulley 2 is mounted on the machine 1 through a first mounting seat 6, and the side end of the mounting seat is provided with a tension sensor 4 for detecting tension data. The second pulley 3 is slidably mounted on the screw slide 5 through a second mounting seat 7, and the screw slide 5 is threadedly connected to the second mounting seat 7 through a screw 8, and the screw 8 is controlled by a servo motor 9 and a planetary reducer 10. The first pulley 2 is rotatably mounted on the first mounting seat 6, and the second pulley 3 is rotatably mounted on the second mounting seat 7.

[0028] Furthermore, the machine 1 is also provided with a touch screen 11 and a printing module 12. The touch screen 11 includes a control system, and the control system is electrically connected to the servo motor 9, the tension sensor 4, and the printing module 12. The control system indirectly calculates the size of the paper bag opening by collecting the number of rotations of the servo motor 9. The following methods are commonly used for collection: for example, through the cooperation of a rotary encoder with a counter, the encoder can output a pulse signal when the motor rotates, and the number of rotations can be measured through the recording function of the counter; for example, through current feedback detection, when the motor rotates, a specific current waveform will be generated, and the number of rotations can be measured by detecting the change of the current waveform. The control system can also be provided with a USB interface for exporting the test data to a mobile storage terminal, such as a USB flash drive, a hard disk, etc., using a data cable.

[0029] The paper bag tester is provided with a printing module 12, so that after the tension test of the paper bag, the data information recorded in the control system can be printed out through the printing module 12 to form a test record.

[0030] Furthermore, the first pulley 2 is a variable diameter wheel structure, in which the radius of the middle part is smaller than the radius of the two side parts.

[0031] Furthermore, the second pulley 3 is a variable diameter wheel structure, in which the radius of the middle part 31 is smaller than the radius of the two side parts 32, and a mounting opening 33 is provided at the center of the second pulley 3, which is cooperated with the mounting rod so that the second pulley 3 is rotatably mounted on the second mounting seat 7, and a nut is usually threadedly connected at the end of the mounting rod for locking.

[0032] The first pulley 2 and the second pulley 3 are further configured as variable diameter wheel structures, which to a certain extent limits the offset range of the handle during the test, so that the handle is located in the middle area of ​​the pulley for the tension test.

[0033] Furthermore, the screw slide 5 and the second pulley 3 are mounted on the machine 1 , and a limit plate 13 is provided at the bottom end of the second pulley 3 , and the limit plate 13 prevents the handle from being separated from the second pulley 3 .

[0034] Furthermore, the radius of the limiting plate 13 is greater than the radius of the second pulley 3, thereby being able to limit the handle from being separated from the second pulley 3, thereby playing a limiting role.

[0035] Furthermore, the screw slide 5 also includes a slide rail 51, which is a double slide rail. The second mounting seat 7 slides in cooperation with the double slide rail, and the sliding effect is good. The double slide rail increases the connection point for the second mounting seat 7 to be hung and installed on the machine 1, and also improves the accuracy during movement.

[0036] Furthermore, the frame structure of the machine platform 1 is constructed by combining aluminum profiles 14 .

[0037] Furthermore, a support foot 15 threadedly connected to the machine 1 is disposed at the bottom end of the machine 1 . Specifically, the structure threadedly connected to the bottom end of the machine 1 is a threaded rod on the support foot 15 .

[0038] Furthermore, four supporting feet 15 are provided, and the overall horizontality of the machine platform 1 can be flexibly adjusted by using different supporting feet 15 .

[0039] When using the paper bag detector for testing, hang the paper bag handle (or hand rope) on the pulleys on both sides respectively, press the test button on the touch screen 11, and the servo motor 9 starts. By cooperating with the planetary reducer 10, the screw rod 8 is controlled to rotate. The screw rod 8 is threadedly matched with the second mounting seat 7, and the second mounting seat 7 and the second pulley 3 are synchronously moved away from the first pulley 2; the tension sensor 4 records the data at the peak value of the tension and transmits the signal to the control system. The control system transmits the data information to the printing module 12 to print out the test structure.

[0040] Two modes are realized by controlling the servo motor 9. One is mode 1 in which the force is applied to a specific tension value, that is, the test is performed according to the set tension, which can detect whether the product is qualified without damaging the product to the greatest extent; the other is mode 2 in which the force is applied to the limit tension value, that is, the maximum strength and minimum strength that the product can withstand are tested. By selecting different modes on the touch screen 11, the tension sensor sends a signal to control the pulley to move to the tension value position in this mode, that is, to control the speed of the output shaft of the servo motor 9 and whether it rotates at a uniform speed to meet the testing requirements of different bag types. At the same time, through data recording and processing, the average value of the batch test is obtained.

[0041] The paper bag detector in the utility model adopts a simple structure to realize automated testing, simple operation and high testing efficiency. By applying stable tension / pressure to test the strength of the bag material, and matching the servo screw type translation slider mechanical structure, multi-mode testing requirements can be met, and translation limit tearing / tensile limit testing of all types of portable paper bags can be achieved. The paper bag detector in the utility model can test bags in batches.

[0042] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope covered by the present invention.

Claims

1. A paper bag detector, characterized in that: It includes a machine platform, a first pulley, a second pulley, a tension sensor, and a screw slide. The first pulley is installed on the machine platform through a first mounting seat, and a tension sensor for detecting tension data is provided at the side end of the mounting seat. The second pulley is slidably installed on the screw slide through a second mounting seat. The screw slide is threadedly connected to the second mounting seat through a screw, and the screw is controlled by a servo motor and a planetary reducer. The first pulley is rotatably installed on the first mounting seat, and the second pulley is rotatably installed on the second mounting seat.

2. The paper bag detector according to claim 1, characterized in that: The machine is also provided with a touch screen and a printing module. The touch screen includes a control system, and the control system is electrically connected to the servo motor, the tension sensor, and the printing module.

3. The paper bag detector according to claim 1, characterized in that: The first pulley is a variable diameter wheel structure, wherein the radius of the middle portion is smaller than the radius of the two side portions.

4. The paper bag detector according to claim 1, characterized in that: The second pulley is a variable diameter wheel structure, wherein the radius of the middle portion is smaller than the radius of the two side portions.

5. The paper bag detector according to claim 1, characterized in that: The screw slide and the second pulley are hung and installed on the machine platform, and a limiting plate is arranged at the bottom end of the second pulley.

6. The paper bag detector according to claim 5, characterized in that: The radius of the limiting plate is greater than the radius of the second pulley.

7. The paper bag detector according to claim 1, characterized in that: The screw slide also includes a slide rail, which is a double slide rail, and the second mounting seat is slidably matched with the double slide rail.

8. The paper bag detector according to claim 1, characterized in that: The frame structure of the machine is constructed by combining aluminum profiles.

9. The paper bag detector according to claim 1, characterized in that: The bottom end of the machine platform is provided with a supporting foot which is threadedly connected to the machine platform.

10. The paper bag detector according to claim 9, characterized in that: There are four supporting legs.

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