Measuring device for detecting opening torque of cigarette packet box cover

Abstract

The utility model relates to the technical field of cigarette case production, in particular to a measuring device for detecting the opening torque of a cigarette packet case cover, which comprises a power part and a testing part, the testing part comprises a rotating shaft and a case cover fixing piece connected with the cigarette packet case cover, the case cover fixing piece is arranged on the rotating shaft, and the rotating shaft is driven by the power part; the detection part is used for detecting the magnitude of torque, the detection part comprises a torque sensor arranged on the testing part and a PLC (Programmable Logic Controller) used for processing a torque value signal, and the signal of the torque sensor is connected to the PLC; the device can drive the box cover to rotate around the box opening rotating shaft, is suitable for measuring the opening torque of the box cover of the cigarette packet, and plays a role in guiding the production process of the cigarette packet.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette box production, in particular to a measuring device for detecting the opening torque of a cigarette pack box cover. Background Art

[0002] Our factory has newly developed a Runxiangbao cigarette pack product that can lock in the aroma of cigarettes. This Runxiangbao cigarette pack uses the Baorun sticker attached to it to keep the moisture and aroma of the cigarettes stored in the cigarette box from being lost. The inside of the Baorun sticker is attached with a self-adhesive sticker to ensure that the Baorun sticker can be repeatedly peeled off, and the outside is glued to the box lid with adhesive to ensure that the Baorun sticker opens at the same time when the lid is opened. The Baorun sticker should not be pasted too loosely, otherwise it will cause the Baorun sticker to separate from the box lid. However, if it is pasted too tightly, the user needs to use greater force to open the box lid, which greatly affects the user experience of the cigarette pack product. At the same time, the user may cause the Baorun sticker to fall off due to excessive force, resulting in quality defects of the cigarette pack.

[0003] To determine whether the Baorun sticker is properly pasted, it is necessary to judge the opening torque of the cigarette pack lid after pasting. In the existing production process of Runxiangbao cigarette packs, the artificial sensory test method is used, but human senses cannot be scientifically measured, and this judgment cannot guide the production process of Baorun stickers in a targeted manner. Therefore, in order to meet the needs of cigarette pack production, the opening torque of the box lid needs to be quantified.

[0004] The utility model patent with authorization announcement number CN214277254U discloses a torque measuring instrument, including a flat plate, a transmission component plate is provided on one side of the top of the flat plate, a first support frame is provided on one side of the top of the transmission component plate, a driving motor is fixedly inserted on the upper part of the first support frame, a second support frame is provided in the middle of the top of the transmission component plate, a torque sensor is fixedly installed on the top of the second support frame, a guide slider is provided on the side of the top of the transmission component plate away from the first support frame, a supporting bearing seat is provided on the top of the guide slider, and a supporting bearing is fixedly clamped on the upper part of the supporting bearing seat.

[0005] The above-mentioned device can only be used to detect the torque generated when the object being tested is twisted around its central axis. However, in order to detect the opening torque of the cigarette pack lid, it is necessary to measure the torque of the lid relative to its opening rotation axis. The opening rotation axis is located at the connection between the cigarette pack lid and the cigarette pack body. The above-mentioned device cannot drive the lid to rotate around the opening rotation axis, so it cannot be used to measure the opening torque of the cigarette pack lid. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a measuring device for detecting the opening torque of the cigarette pack cover, which can drive the cover to rotate around its box opening rotation axis, is suitable for measuring the opening torque of the cigarette pack cover, and plays a guiding role in the production process of Baorun stickers.

[0007] The technical solution to the problem solved by the utility model is to provide a measuring device for detecting the opening torque of a cigarette pack box cover, comprising a power unit and a testing unit, the testing unit comprising a rotating shaft and a box cover fixing member connected to the cigarette pack box cover, the box cover fixing member being arranged on the rotating shaft, and the rotating shaft being driven by the power unit; it also comprises a detecting unit for detecting the torque size, the detecting unit comprising a torque sensor arranged in the testing unit and a PLC for processing a torque value signal, and the signal of the torque sensor is connected to the PLC.

[0008] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following feature: the testing part also includes a cigarette pack fixing member for fixing the cigarette pack body.

[0009] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following characteristics: the cigarette pack fixing member includes two clamping plates, the two clamping plates are connected by a connecting member, and the distance between the two clamping plates is equal to the width of the cigarette pack.

[0010] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following characteristics: the testing part also includes a support member for supporting the rotating shaft, one end of the rotating shaft is connected to the power part, and the other end is arranged on the support member through a rotating bearing.

[0011] Furthermore, the measuring device for detecting the opening torque of the cigarette pack box cover provided by the utility model may also have the following characteristics: the box cover fixing part includes a clamping part and a connecting part; the cigarette pack box cover is U-shaped, including a connecting cover, a top cover and a side cover connected in sequence, the connecting cover is connected to the cigarette pack body, the clamping part includes a supporting plate abutting the top cover and a friction plate abutting the side cover; one end of the connecting part is connected to the clamping part, and the other end is connected to the rotating shaft.

[0012] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following characteristics: the rotating shaft includes a U-shaped portion with a U-shaped protrusion and a flat transmission portion, the cover fixing piece is arranged on the U-shaped portion, and the transmission portion is connected to the power portion.

[0013] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following feature: the rotating shaft is connected to the power part via a connecting flange.

[0014] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following characteristics: it also includes an operating part, the operating part includes a touch screen for displaying the measured torque size and a control switch for controlling the operation of the power part, and the signal of the operating part is connected to the PLC.

[0015] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following characteristics: it also includes a protective cover, and the power unit is arranged inside the protective cover.

[0016] Furthermore, the measuring device for detecting the opening torque of the cigarette pack cover provided by the utility model may also have the following feature: the power unit also includes a radiator.

[0017] The beneficial effects of the utility model are:

[0018] 1. In the present application, a lid fixing part connected to the lid of the cigarette pack is provided. Since the lid fixing part is provided on the rotating shaft, when the rotating shaft is driven by the power unit to move, it can drive the lid fixing part to move so as to open the lid. At this time, the torque sensor located in the test unit records the torque value signal generated by opening the lid and transmits it to the PLC. In this process, the torque value signal is converted into a current signal. The PLC calculates and processes the current signal according to preset instructions to obtain the torque required to open the cigarette pack lid, and can guide the production of cigarette packs according to the quantified torque value.

[0019] 2. In the present application, by providing a cigarette pack fixing part, during the process of measuring the torque, the cigarette pack body does not rotate along with the box cover, and a more accurate torque value can be obtained.

[0020] 3. In the present application, considering that the cigarette pack cover rotates along the box opening rotation axis at the connection between it and the cigarette pack body when the box lid is opened, a U-shaped portion with a U-shaped protrusion is further provided on the rotation axis, and the box lid fixing piece is provided on the U-shaped portion. Under the drive of the power unit, the cigarette pack cover connected to the box lid fixing piece is opened, and its box opening rotation axis is coaxial with the rotation axis of the U-shaped portion. The rotation of the rotation axis can drive the cigarette pack cover to rotate along the box opening rotation axis without the need for excess movement.

[0021] 4. In the present application, an operating unit connected to the PLC signal is further provided, which can easily read the measured torque for opening the box cover through the touch screen, and start, close, reset and other operations of the torque test by controlling the switch, thereby realizing good human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0024] Figure 2 A side view of an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the power unit and the test unit of an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the embodiment of the utility model after the protective cover is assembled.

[0027] In the figure:

[0028] 1. Power unit; 11. Closed-loop motor; 12. Support; 2. Test unit; 21. Rotating shaft; 211. U-shaped unit; 212. Transmission unit; 22. Cover fixing member; 221. Clamping unit; 222. Connecting unit; 23. Cigarette package fixing member; 231. Clamping plate; 24. Support member; 3. Torque sensor; 4. Operating unit; 41. Touch screen; 42. Control switch; 5. Protective cover; 6. Radiator; 71. Cigarette package body; 72. Cigarette package cover; 8. Connecting flange. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 As shown, the cigarette pack includes a cigarette pack body 71 and a cigarette pack cover 72. The cigarette pack cover 72 is U-shaped and includes a connecting cover, a top cover and a side cover connected in sequence, wherein the connecting cover is connected to the cigarette pack body 71. The box opening rotation axis is located at the connection between the cigarette pack body 71 and the cigarette pack cover 72. When the cigarette pack cover 72 is opened, the cigarette pack cover 72 rotates around its box opening rotation axis.

[0031] See also Figure 1-4The utility model provides a measuring device for detecting the opening torque of a cigarette pack box cover 72, comprising a power unit 1 and a test unit 2, wherein the test unit 2 comprises a rotating shaft 21 and a box cover fixing member 22 for connecting with the cigarette pack box cover 72, wherein the box cover fixing member 22 is arranged on the rotating shaft 21, and the rotating shaft 21 is driven by the power unit 1. In order to provide good rotation balance, the rotating shaft 21 and the power unit 1 are preferably connected through a connecting flange 8. When in use, the power unit 1 drives the rotating shaft 21 to move, and the cigarette pack box cover 72 is driven by the box cover fixing member 22 connected thereto, and rotates around its opening rotation axis until reaching the limit position, at which time the cigarette pack box cover 72 can no longer rotate. In this embodiment, in order to monitor and feedback the operating status of the power unit 1 in real time, the power unit 1 is preferably a closed-loop motor 11. In order to provide protection for the closed-loop motor 11, the testing device further comprises a protective cover 5, and the power unit 1 further comprises a support 12; the closed-loop motor 11 is arranged on the support 12, and the power unit 1 is arranged in the protective cover 5. The measuring device also includes a detection unit for detecting the torque size, and the detection unit includes a torque sensor 3 provided in the test unit 2 and a PLC (not shown in the figure) for processing the torque signal, and the signal of the torque sensor 3 is connected to the PLC. When detecting the box opening torque, the torque sensor 3 located in the test unit 2 transmits the torque value signal to the PLC, and the PLC calculates the torque value according to the preset instructions. Specifically, it is preferred to set a torque amplifier to process the torque value signal, and the torque amplifier outputs the torque value signal transmitted by the torque sensor 3 as a modulus 0-20mA analog current signal. The PLC receives the analog current signal and uses the analog conversion instruction to calculate the torque value, thereby realizing the accurate quantification of the opening torque of the cigarette pack cover 72, and can guide the production process of the cigarette pack.

[0032] In some embodiments, in order to prevent the cigarette package body 71 from rotating with the box cover, the test part 2 further includes a cigarette package fixing member 23 for fixing the cigarette package body 71. The cigarette package fixing member 23 includes two clamping plates 231, and the two clamping plates 231 are connected by a connecting member, and the spacing between the two clamping plates 231 is equal to the width of the cigarette package. The connecting member is preferably detachably connected to both clamping plates 231, which can be screwed, or one side edge of the connecting member can be hinged to one clamping plate 231, and the other side edge can be abutted against the other clamping plate 231.

[0033] In some embodiments, the test unit 2 also includes a support member 24 for supporting the rotating shaft 21. The number of the support members 24 can be one or more. Since one end of the rotating shaft 21 is connected to the power unit 1, at least one support member 24 is arranged at the end of the rotating shaft 21 that is not connected to the power unit 1 through a rotating bearing.

[0034] In some embodiments, Figure 4 As shown, the power unit 1 also includes a radiator 6 to prevent the power unit 1 from overheating due to long-term operation.

[0035] In some specific embodiments, Figure 1-2 As shown, the box cover fixing member 22 includes a clamping portion 221 and a connecting portion 222. In order to enable the clamping portion 221 to clamp and connect the cigarette pack box cover 72 without affecting the opening of the cigarette pack box cover 72, the clamping portion 221 includes a support plate abutting against the top cover and a friction plate abutting against the side cover, one end of the connecting portion 222 is connected to the clamping portion 221, and the other end is connected to the rotating shaft 21, and the torque sensor 3 is preferably arranged on the connecting portion 222.

[0036] In some specific embodiments, the rotating shaft 21 includes a U-shaped portion 211 with a U-shaped protrusion and a straight transmission portion 212, the cover fixing member 22 is arranged on the U-shaped portion 211, and the transmission portion 212 is connected to the power unit 1. When in use, the power unit 1 drives the rotating shaft 21 to rotate, at which time the cigarette pack cover 72 connected to the cover fixing member 22 is opened, and its opening rotation axis is coaxial with the rotation axis of the U-shaped portion 211, and the rotation of the rotating shaft 21 can drive the cigarette pack cover 72 to rotate along the opening rotation axis without unnecessary movement.

[0037] The test device also includes an operating unit 4, which includes a touch screen 41 for displaying the measured torque and a control switch 42 for controlling the operation of the power unit 1. The signal of the operating unit 4 is connected to the PLC. Specifically, during measurement, the data of the measurement process will be automatically displayed on the touch screen 41. At this time, the operator can read the specific data of the box cover opening torque, and preferably automatically save 20 measurement data and the continuous change value of the data. The control switch 42 includes a power switch for connecting or disconnecting the power supply of the power unit 1, a reset switch for clearing motor faults and fault alarms, a return switch for returning the shaft 21 after the measurement is completed, a measurement switch for starting the movement of the shaft 21, and a calibration switch for clearing the torque reference value during measurement. Among them, when there is no measurement and alarm, pressing the reset switch can release the self-locking force of the closed-loop motor 11, and the shaft of the closed-loop motor 11 can rotate freely.

[0038] In some specific embodiments, the specific steps of using the measuring device to measure the opening torque of the cigarette pack box cover 72 are as follows: when the opening torque of the cigarette pack box cover 72 needs to be measured, press the power switch to turn on the power, then press the reset switch to release the self-locking force of the closed-loop motor 11, at which time the shaft of the closed-loop motor 11 can rotate freely, then press the return switch to return the measuring device to the initial measurement position, and continue to press the calibration switch to clear the torque reference value during measurement (the torque reference value is reset to zero). After the torque reference value is reset to zero, the cigarette pack to be measured is fixed with the cigarette pack fixing member 23 and the box cover fixing member 22, and then the measuring switch is pressed, and the rotating shaft 21 is driven by the power unit 1 to start moving until the cigarette pack box cover 72 stops at the extreme position where it can no longer rotate, and the torque sensor 3 records and transmits the opening torque value of the cigarette pack box cover 72 to the PLC, and the data processed by the PLC is automatically displayed on the touch screen 41, at which time the operator can read the specific data of the torque.

[0039] The contents described above can be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present utility model.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0041] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A measuring device for detecting the opening torque of a cigarette pack cover (72), characterized in that: The invention comprises a power unit (1) and a testing unit (2), wherein the testing unit (2) comprises a rotating shaft (21) and a box cover fixing member (22) for connecting to a cigarette pack box cover (72), wherein the box cover fixing member (22) is arranged on the rotating shaft (21), and the rotating shaft (21) is driven by the power unit (1); and further comprises a detection unit for detecting the magnitude of torque, wherein the detection unit comprises a torque sensor (3) arranged on the testing unit (2) and a PLC for processing torque value signals, wherein the signal of the torque sensor (3) is connected to the PLC.

2. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The testing section (2) also includes a cigarette pack fixing member (23) for fixing the cigarette pack body (71).

3. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 2, characterized in that: The cigarette pack fixing member (23) comprises two clamping plates (231), the two clamping plates (231) are connected via a connecting member, and the distance between the two clamping plates (231) is equal to the width of the cigarette pack.

4. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The test part (2) further comprises a support member (24) for supporting the rotating shaft (21); one end of the rotating shaft (21) is connected to the power part (1), and the other end is arranged on the support member (24) via a rotating bearing.

5. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The box cover fixing member (22) comprises a clamping portion (221) and a connecting portion (222); the cigarette pack box cover (72) is U-shaped, comprising a connecting cover, a top cover and a side cover connected in sequence, the connecting cover being connected to the cigarette pack body (71), the clamping portion (221) comprising a supporting plate abutting against the top cover and a friction plate abutting against the side cover; one end of the connecting portion (222) is connected to the clamping portion (221), and the other end is connected to the rotating shaft (21).

6. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The rotating shaft (21) comprises a U-shaped portion (211) with a U-shaped protrusion and a straight transmission portion (212); the box cover fixing member (22) is arranged on the U-shaped portion (211); and the transmission portion (212) is connected to the power portion (1).

7. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The rotating shaft (21) is connected to the power unit (1) via a connecting flange (8).

8. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: It also comprises an operating unit (4), the operating unit (4) comprising a touch screen (41) for displaying the measured torque magnitude and a control switch (42) for controlling the operation of the power unit (1), and a signal of the operating unit (4) is connected to the PLC.

9. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: It also comprises a protective cover (5), wherein the power unit (1) is arranged inside the protective cover (5).

10. The measuring device for detecting the opening torque of a cigarette pack cover (72) according to claim 1, characterized in that: The power unit (1) also includes a radiator (6).

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