Automatic cable tie cutting device

By using a dual detection switch to identify and detect the use of dual detection switches in tie -tie cutting equipment, the problem of high error initiating rate of the existing tie cutting equipment has been solved, and the accuracy of equipment detection and the safety of automated production are improved.

CN222388522UActive Publication Date: 2025-01-24CHINA TOBACCO GUIZHOU IND
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Patent Information

Application Number
CN202423204229.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-01-24
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

The probability of error-starting of existing cable ties cutting equipment is high, resulting in reduced equipment detection accuracy and difficult to ensure automatic production safety.

Method used

Designed a type of automatic cutting device, using a dual detection switch (first detection switch and second detection switch) to identify and detect the smoke bag on the roller conveyor. Drive the cutting knife for cutting.

Benefits of technology

The design of dual detection switches improves the accuracy of equipment detection, reduces the probability of false starts, and ensures the safety of automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging ribbons, and discloses an automatic ribbon cutting device which is used for cutting ribbons on the periphery of a tobacco bale on a roller conveyor, the roller conveyor comprises a plurality of conveying rollers arranged at intervals in the conveying direction of the tobacco bale, and a cutter is arranged between every two adjacent conveying rollers; the first driving mechanism is connected with the cutter and used for driving the cutter to rotate; the first detection switch is arranged on the roller conveyor, the detection area of the first detection switch is a first detection area, and the first detection switch is used for detecting whether cigarette packets exist in the first detection area or not; the second detection switch is close to the cutter and arranged between the first detection area and the cutter, the detection area of the second detection switch is a second detection area, and the second detection switch is used for detecting whether cigarette packets exist in the second detection area or not; the control system is used for receiving signals of the first detection switch and the second detection switch and controlling the driving mechanism to drive the cutter to rotate. The detection accuracy of the cutting device can be improved, and the safety of automatic production is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging cable ties, in particular to an automatic cable tie cutting device. Background Art

[0002] In tobacco production enterprises, the existing cartons for packaging tobacco materials are mostly wrapped with long narrow strips of plastic material. Most of these packaging boxes need to be cut on the automated logistics and transportation production process line to separate the packaging box from the tobacco materials inside the packaging box, thereby facilitating the subsequent processing of the tobacco materials.

[0003] At present, the automated equipment for cutting the packaging tapes of such packaging boxes has the defect of a high probability of false start-up; when there are no tobacco packaging boxes conveyed on the production line, the detection device in the automated cutting equipment may still detect the tobacco packaging boxes due to a malfunction or interference from external objects. At this time, the automated cutting equipment will start working and false start will occur, thereby reducing the accuracy of equipment detection in automated production, and the cutting equipment is prone to harm the operator, making it difficult to ensure the safety of automated production. Utility Model Content

[0004] The utility model aims to solve the problem that the existing cable tie cutting equipment has a high probability of false start-up. The utility model provides an automatic cable tie cutting device, which can improve the accuracy of production equipment detection to ensure the safety of automated production.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses an automatic cable tie cutting device, which is used to cut the cable tie on the periphery of the cigarette pack on the roller conveyor. The roller conveyor includes a plurality of conveying rollers arranged at intervals along a first direction, and the first direction is the conveying direction of the cigarette pack. The automatic cable tie cutting device includes:

[0006] A cutter, disposed between two adjacent conveying rollers;

[0007] A first driving mechanism is connected to the cutter, and is used to drive the cutter to rotate so as to cut the cable tie passing over the cutter;

[0008] A first detection switch is arranged on the roller conveyor, the detection area of ​​the first detection switch is a first detection area, the first detection area is located upstream of the cutter along the first direction, and the first detection switch is used to detect whether there is a cigarette pack in the first detection area;

[0009] a second detection switch, which is disposed between the first detection area and the cutter, close to the cutter, and the distance between the detection end of the first detection switch and the detection end of the second detection switch is smaller than the size of the cigarette pack along the first direction; the detection area of ​​the first detection switch is the second detection area, the cutter is located in the second detection area, and the second detection switch is used to detect whether there is a cigarette pack in the second detection area;

[0010] The control system is used to receive signals from the first detection switch and the second detection switch, wherein when the second detection switch detects that there is a cigarette pack in the first detection area and the second detection switch detects that there is a cigarette pack in the second detection area, the control system is used to control the first drive mechanism to drive the cutter to rotate.

[0011] The utility model designs a first detection switch and a second detection switch, and utilizes double detection switches to identify and detect cigarette packs on a roller conveyor. When the control system receives a signal that the first detection switch and the second detection switch both detect that there are cigarette packs in their corresponding detection areas, the first drive mechanism can drive the cutter to rotate to cut the cable ties tied to the periphery of the cigarette pack, thereby solving the problem of a high probability of false detection of a single detection switch in automated production, improving the accuracy of equipment detection, and ensuring the safety of personnel in automated production.

[0012] According to another specific embodiment of the utility model, the embodiment of the utility model discloses a cutting device further comprising:

[0013] A first fixed seat is arranged on the frame of the roller conveyor;

[0014] A second fixed seat is arranged above the first fixed seat, and the cutter is rotatably arranged on the second fixed seat;

[0015] An elastic member, disposed between the first fixing seat and the second fixing seat, the elastic member can provide an upward supporting force for the first fixing seat and the cutter;

[0016] When the cigarette pack moves above the cutter, the cigarette pack applies downward pressure to the cutter, causing the elastic member to undergo elastic deformation; when the cigarette pack separates from the cutter, the elastic member restores its elastic deformation to drive the cutter to move upward, so that the highest point of the cutter is higher than the highest point of the conveyor roller.

[0017] According to another specific embodiment of the present utility model, an embodiment of the present utility model discloses an elastic member configured as a compression spring.

[0018] According to another specific embodiment of the utility model, the embodiment of the utility model discloses an automatic cable tie cutting device, and the cutting device further includes:

[0019] A protective cover is installed on the frame of the roller conveyor;

[0020] A second driving mechanism is connected to the protective cover, and the second driving mechanism is used to drive the protective cover to rotate between a first position and a second position;

[0021] When the protective cover is rotated to a first position, the cutter is located outside the protective cover; when the protective cover is rotated to a second position, the cutter is covered inside the protective cover.

[0022] According to another specific implementation of the utility model, the implementation of the utility model discloses that the first detection switch is configured as a photoelectric switch, and the second detection switch is configured as a micro-motion detection switch.

[0023] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses that the driving mechanism is configured as a motor.

[0024] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the cutter is configured as a circular blade, and a cutting edge is provided on the edge of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a cable tie automatic cutting device provided in a specific embodiment of the utility model is shown;

[0026] Figure 2 A schematic diagram showing the structure of the cutter and the protective cover when the protective cover is in the first position in a specific embodiment of the utility model;

[0027] Figure 3 A schematic structural diagram of a cutter and a protective cover when the protective cover is in a second position in a specific embodiment of the utility model is shown. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0029] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0032] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0033] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1 As shown, one embodiment of the utility model provides an automatic cable tie cutting device for cutting a cable tie 3 on the periphery of a cigarette pack 2 on a roller conveyor 1, wherein the roller conveyor 1 includes a plurality of cable ties along a first direction (such as Figure 1 The conveying rollers 11 are arranged at intervals (in the X direction shown in the figure), and the conveying rollers 11 can rotate around their own axes to convey the cigarette packs 2 along the first direction. The cable tie automatic cutting device includes: a cutter 6, a first driving mechanism (not shown in the figure), a first detection switch 4, a second detection switch 5 and a control system (not shown in the figure).

[0035] The cutter 6 is disposed between two adjacent conveying rollers 11. For example, the cutter 6 is a circular blade, the edge of which is provided with a blade, and the cutter 6 can rotate around its own axis. The circular blade rotates around its own center of circle driven by the driving mechanism so that the blade cuts the cable tie 3.

[0036] The first driving mechanism is connected to the cutter 6, and is used to drive the cutter 6 to rotate so as to cut the cable tie 3 passing over the cutter 6. Exemplarily, the first driving mechanism is a motor, and the operator can select the type of motor according to actual needs to provide power for the rotation of the cutter 6.

[0037] The first detection switch 4 is disposed on the roller conveyor 1. The detection area of ​​the first detection switch is the first detection area, which is located upstream of the cutter along the first direction. The first detection switch is used to detect whether there is a cigarette pack 2 in the first detection area. Exemplarily, the first detection switch 4 is a photoelectric switch.

[0038] The second detection switch 5 is arranged between the first detection area and the cutter 6 near the cutter 6. The detection area of ​​the second detection switch 5 is the second detection area. The cutter 6 is located in the second detection area. The second detection switch 5 is used to detect whether there is a cigarette pack 2 in the second detection area. The distance between the detection end of the first detection switch 4 and the detection end of the second detection switch 5 is smaller than the size of the cigarette pack along the X direction, so as to ensure that the cigarette pack 2 can appear in the first detection area and the second detection area at the same time when being transported on the roller conveyor. Exemplarily, the second detection switch 5 is a micro detection switch.

[0039] The control system is used to receive signals from the first detection switch 4 and the second detection switch 5, wherein when the first detection switch 4 detects that there is a cigarette pack 2 in the first detection area and the second detection switch 5 detects that there is a cigarette pack 2 in the second detection area, the control system is used to control the first drive mechanism to drive the cutter 6 to rotate.

[0040] In response to the problems that arise when cutting the cable ties 3 with the existing cable tie cutting devices, the present application designs a first detection switch 4 and a second detection switch 5, and utilizes dual detection switches to identify and detect the cigarette packs 2 transported on the roller conveyor 1. When the control system receives signals from the first detection switch 4 and the second detection switch 5, it indicates that the cigarette pack 2 is located within the first detection area and the second detection area. At this time, the first drive mechanism drives the cutter 6 to rotate to cut the cable tie 3 bundled around the outside of the cigarette pack 2, thereby solving the problem of a high probability of false detection of a single detection switch in automated production, improving the accuracy of equipment detection, and ensuring the safety of personnel in automated production.

[0041] Specifically, when the entire production line starts working, the first detection switch 4 and the second detection switch 5 begin to detect whether there are cigarette packs 2 being transported on the roller conveyor 1. When the first detection switch 4 and / or the second detection switch 5 do not detect that there are cigarette packs 2 in their corresponding detection areas, the first drive mechanism is in a stopped working state, that is, the cutter 6 will not cut the cable tie 3. When the first detection switch 4 detects that there are cigarette packs 2 in the first detection area and the second detection switch 5 detects that there are cigarette packs 2 in the second detection area, the two detection switches will transmit the detection signal to the control system, and then the control system will control the first drive mechanism to work after receiving the detection signal, and then the first drive mechanism will drive the cutter 6 connected thereto to rotate. Since the cigarette pack 2 is located above the cutter 6 at this time, and the cable tie 3 can contact the blade of the cutter 6, the cutter 6 will cut the cable tie 3 during the rotation process.

[0042] Furthermore, the cable tie automatic cutting device further comprises a first fixing seat 7, a second fixing seat 9 and an elastic member 8. The first fixing seat 7 is arranged on the frame of the roller conveyor 1. The second fixing seat 9 is arranged above the first fixing seat 7, and the cutter 6 is rotatably arranged on the second fixing seat 9. The elastic member 8 is arranged between the first fixing seat 7 and the second fixing seat 9, and the elastic member 8 can provide an upward supporting force for the first fixing seat 7 and the cutter 6. Exemplarily, the elastic member 8 can be a compression spring 81.

[0043] When the cigarette pack 2 moves to the top of the cutter 6, the cigarette pack 2 applies downward pressure to the cutter 6, so that the elastic member 8 retracts and generates elastic deformation; when the cigarette pack 2 separates from the cutter 6, the elastic member 8 restores the elastic deformation to drive the cutter 6 to move upward. After the elastic member 8 restores the elastic deformation, the highest point of the cutter 6 is higher than the highest point of the conveying roller 11, so that when the cigarette pack 2 passes above the cutter 6, the highest point of the cutter 6 can contact the cable tie 3.

[0044] The present application arranges an elastic member 8 between the first fixing seat 7 and the second fixing seat 9. When a cigarette pack 2 is transported above the cutter 6, the elastic member 8 utilizes its own elastic deformation property to move the cutter 6 downward by a certain distance, thereby providing a buffer for the cutter 6 and preventing the cutter 6 from being damaged by excessive collision with the cigarette pack 2.

[0045] Further, refer to Figure 2 and Figure 3 The cable tie automatic cutting device also includes a protective cover 10 and a second driving mechanism. The protective cover 10 is arranged on the frame of the roller conveyor. The second driving mechanism is connected to the protective cover 10, and the second driving mechanism is used to drive the protective cover 10 to a first position (such as Figure 2 The protective cover 10 is positioned as shown in FIG. Figure 3When the protective cover 10 is rotated to the first position, the cutter 6 is located outside the protective cover 10; when the protective cover 10 is rotated to the second position, the cutter 6 is covered inside the protective cover 10. Exemplarily, the second driving mechanism is a motor, and the operator can select the type of motor according to actual needs to provide power for the rotation of the anti-slip cover 10.

[0046] The utility model of the automatic cable tie cutting device is provided with a protective cover 10 and a second drive mechanism connected thereto at the edge of the cutter 6. When the first detection switch 4 and / or the second detection switch 5 detects that a cigarette pack 2 appears in its corresponding detection area, the two detection switches will transmit the detection signal to the control system, and then the control system will control the second drive mechanism to work after receiving the detection signal, and then the second drive mechanism will drive the protective cover 10 to rotate to the first position, at which time the cutter 6 is located outside the protective cover 10. When the first detection switch 4 and / or the second detection switch 5 does not detect that a cigarette pack 2 exists in its corresponding detection area, the second drive mechanism drives the protective cover 10 to rotate to the second position, that is, the protective cover 10 covers the cutter 6 inside it. This design can prevent the cutter 6 from causing harm to the staff when it is accidentally started, thereby improving the safety of the device.

[0047] It should be noted that, in the examples and description of the present utility model, 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 including 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 one" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0048] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An automatic cable tie cutting device, used for cutting cable ties on the periphery of cigarette packs on a roller conveyor, wherein the roller conveyor comprises a plurality of conveying rollers spaced apart along a first direction, wherein the first direction is the conveying direction of the cigarette packs, and wherein: The cable tie automatic cutting device comprises: A cutter, disposed between two adjacent conveying rollers; a first driving mechanism connected to the cutter, the first driving mechanism being used to drive the cutter to rotate so as to cut the cable tie passing over the cutter; a first detection switch, arranged on the roller conveyor, wherein the detection area of ​​the first detection switch is a first detection area, the first detection area is located upstream of the cutter along the first direction, and the first detection switch is used to detect whether there is the cigarette pack in the first detection area; a second detection switch, arranged between the first detection area and the cutter, wherein the distance between the detection end of the first detection switch and the detection end of the second detection switch is smaller than the size of the cigarette pack along the first direction, the detection area of ​​the second detection switch is the second detection area, the cutter is located in the second detection area, and the second detection switch is used to detect whether the cigarette pack is in the second detection area; A protective cover is arranged on the frame of the roller conveyor; a second driving mechanism connected to the protective cover, the second driving mechanism being used to drive the protective cover to rotate between a first position and a second position; when the protective cover rotates to the first position, the cutter is located outside the protective cover; when the protective cover rotates to the second position, the cutter is covered inside the protective cover; A control system is used to receive signals from the first detection switch and the second detection switch; when the first detection switch detects that the cigarette pack is in the first detection area and the second detection switch detects that the cigarette pack is in the second detection area, the control system controls the first driving mechanism to operate to drive the cutter to rotate.

2. The cable tie automatic cutting device according to claim 1, characterized in that: The cutting device also includes: A first fixed seat is arranged on the frame of the roller conveyor; A second fixed seat is arranged above the first fixed seat, and the cutter is rotatably arranged on the second fixed seat; An elastic member, disposed between the first fixing seat and the second fixing seat, the elastic member being capable of providing an upward supporting force for the first fixing seat and the cutter; When the cigarette pack moves to the top of the cutter, the cigarette pack applies downward pressure to the cutter to cause the elastic member to undergo elastic deformation; when the cigarette pack is separated from the cutter, the elastic member restores its elastic deformation to drive the cutter to move upward, so that the highest point of the cutter is higher than the highest point of the conveying roller.

3. The cable tie automatic cutting device according to claim 2, characterized in that: The elastic member is configured as a compression spring.

4. The cable tie automatic cutting device according to claim 1, characterized in that: The first detection switch is configured as a photoelectric switch, and the second detection switch is configured as a micro-motion detection switch.

5. The cable tie automatic cutting device according to claim 1, characterized in that: The driving mechanism is configured as a motor.

6. The automatic cable tie cutting device according to claim 1, characterized in that: The cutter is configured as a circular blade, and a cutting edge is disposed on the edge of the blade.