Paper film detection assembly of straw packaging machine

Abstract

The utility model belongs to the technical field of straw packaging machines, and particularly relates to a paper film detection assembly of a straw packaging machine, which comprises a plurality of conveying carrier rollers which are rotatably connected onto a rack and are used for conveying paper films, and a detection element is arranged on the rack between two adjacent conveying carrier rollers for conveying the paper films. The detection element can detect the paper film between the two corresponding conveying carrier rollers and is electrically connected with the control assembly. The paper film conveying detection device is simple in structure, reasonable in design and low in cost, paper film conveying is detected through the detection element, a signal is transmitted to the control assembly in time, the control assembly can control opening and closing operation of related mechanisms in time, and therefore operation convenience and safety of the packaging machine are effectively improved.

Description

Technical field:

[0001] The utility model belongs to the technical field of straw packaging machines, in particular to a paper film detection component of a straw packaging machine. Background technology:

[0002] The single-package straw packaging equipment disclosed in the existing Chinese utility model patent (authorization announcement number CN217295021U) includes a frame, on which are provided a straw feeding device, a straw pushing device, a paper film unwinding device, a paper film printing device, a paper film folding device and a paper film sealing and cutting device. The paper film unwinding device unwinds the paper film and passes through the paper film printing device, the paper film folding device and the paper film sealing and cutting device in sequence. The straw pushing device is connected to the bottom of the straw feeding device and pushes the straw into the folded paper film; the paper film printing device includes a mounting plate, on which are provided more than two groups of printing components along the paper film conveying direction, each group of printing components includes a rubber wheel, a printing roller and an ink roller, the rubber wheel can elastically swing to press the upper part of the printing roller, the ink roller is in contact with the lower part of the printing roller, the ink roller is equipped with an ink cartridge, the printing roller is equipped with a servo motor, and the printing roller and the ink roller are linked. That is, the paper film will pass through the paper film printing device, the paper film folding device, and the paper film sealing and cutting device in sequence during the transmission process, thereby realizing the packaging of the straws with the paper film. In addition, the power required for the transmission of the paper film is now often transported by rollers.

[0003] During actual application, it was found that when one roll of paper film was delivered but the next roll of paper film was not loaded in time, the paper film printing device and paper film sealing and cutting device in the entire packaging machine remained in working state. The operator needed to manually turn off the switch of the equipment before the paper film could be filled. Not only was the operation troublesome, but there was also a risk that careless operators would fill the paper film without turning off the equipment, which could easily lead to safety accidents. Summary of the invention:

[0004] The purpose of the utility model is to provide a paper film detection component for a straw packaging machine, which can check the transmission of the paper film and transmit the signal to the control assembly in time, so as to effectively improve the operating convenience and safety of the packaging machine.

[0005] The utility model is achieved in this way:

[0006] A paper film detection assembly for a straw packaging machine includes a plurality of conveying rollers rotatably connected to a frame and used for conveying paper films. A detection element is provided on the frame between two adjacent conveying rollers for conveying paper films, and the detection element is capable of detecting the paper film between the corresponding two conveying rollers. The detection element is electrically connected to the control assembly.

[0007] In the above-mentioned paper film detection assembly of a straw packaging machine, the frame is hingedly connected to a detection connecting rod, the outer end of the detection connecting rod can naturally hang down and rest on the upper surface of the paper film between the corresponding two conveying rollers, and the inner end of the detection connecting rod cooperates with the detection end of the detection element. When there is no paper film between the corresponding two conveying rollers, the outer end of the detection connecting rod naturally hangs down to drive its inner end to rotate and separate from the detection end of the detection element.

[0008] In the above-mentioned paper film detection assembly of the straw packaging machine, the outer end of the detection connecting rod is fixedly connected to the inner end of the counterweight block by a fastener, and the outer end of the counterweight block can rest on the upper surface of the paper film between the corresponding two conveying rollers.

[0009] In the above-mentioned paper film detection assembly of the straw packaging machine, the lower surface of the outer end of the counterweight block in contact with the paper film is a curved surface structure.

[0010] In the above-mentioned paper film detection component of the straw packaging machine, a driving chamber separated from the outside world is provided in the frame, and a detection window connecting the driving chamber with the outside world is opened on the frame. The detection connecting rod is hingedly engaged with the frame outside the detection window, and the inner end of the detection connecting rod extends into the detection window to the driving chamber, and the detection element is fixed in the driving chamber.

[0011] In the above-mentioned paper film detection assembly of the straw packaging machine, the inner end of the detection connecting rod is connected to one end of the detection lever, and the other end of the detection lever is a free end and can correspond to the detection end position of the detection element.

[0012] In the above-mentioned paper film detection assembly of the straw packaging machine, an L-shaped structure is formed between the detection connecting rod and the detection lever, and the detection connecting rod and the detection lever are an integrated structure or a split structure connected and fixed by fasteners.

[0013] The outstanding advantages of the utility model compared with the prior art are:

[0014] The utility model has a simple structure, reasonable design and low cost. It uses detection elements to check the transmission of paper film and transmit signals to the control assembly in a timely manner, so that the control assembly can control the opening and closing operations of related mechanisms in a timely manner, thereby effectively improving the operating convenience and safety of the packaging machine. Description of the drawings:

[0015] Figure 1 This is a diagram of the detection structure of the utility model in the state of having paper film;

[0016] Figure 2 This is a detection structure diagram of the utility model in a paper-free film state.

[0017] In the figure: 1. Frame; 2. Paper film; 3. Conveyor roller; 4. Detection element; 5. Detection connecting rod; 6. Counterweight; 7. Detection window; 8. Detection lever. Specific implementation method:

[0018] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0019] A paper film detection assembly for a straw packaging machine includes a plurality of conveying rollers 3 rotatably connected to a frame 1 and used for conveying paper film 2. A detection element 4 is provided on the frame 1 between two adjacent conveying rollers 3 for conveying paper film 2, and the detection element 4 is capable of detecting the paper film 2 between the corresponding two conveying rollers 3. The detection element 4 is electrically connected to the control assembly.

[0020] The utility model has a simple structure, reasonable design and low cost. It uses the detection element 4 to check the transmission of the paper film 2 and transmits the signal to the control assembly in time, so that the control assembly can control the opening and closing operations of related mechanisms in time, thereby effectively improving the operating convenience and safety of the packaging machine.

[0021] Among them, the detection element 4 can be a common infrared transmitter and infrared receiver, that is, the infrared transmitter and the infrared receiver are respectively arranged on both sides of the paper film 2 to detect whether the paper film 2 exists. In this embodiment, the detection element 4 adopts a position sensor, and the specific detection structure of the detection element 4 is: the frame 1 is hingedly connected to the detection link 5, and the outer end of the detection link 5 can naturally hang down and rest on the upper surface of the paper film 2 between the corresponding two conveying rollers 3. The inner end of the detection link 5 cooperates with the detection end of the detection element 4. When there is no paper film 2 between the corresponding two conveying rollers 3, the outer end of the detection link 5 naturally hangs down to drive its inner end to rotate and separate from the detection end of the detection element 4.

[0022] Furthermore, in order to ensure that the outer end of the detection link 5 can stably and reliably rest against the paper film 2, the outer end of the detection link 5 is fixedly connected to the inner end of the counterweight 6 by a fastener, and the outer end of the counterweight 6 can rest against the upper surface of the paper film 2 between the corresponding two conveying rollers 3.

[0023] At the same time, in order to reduce the friction between the counterweight 6 and the paper film 2 in a moving state, the lower surface of the outer end of the counterweight 6 in contact with the paper film 2 is a curved surface structure.

[0024] In order to protect the detection element 4 from interference from other external factors and improve its detection accuracy, a driving chamber separated from the outside world is provided in the frame 1, and a detection window 7 connecting the driving chamber with the outside world is opened on the frame 1. The detection connecting rod 5 is hingedly engaged with the frame 1 outside the detection window 7, and the inner end of the detection connecting rod 5 extends into the detection window 7 to the driving chamber, and the detection element 4 is fixed in the driving chamber.

[0025] Furthermore, considering that the detection element 4 is located in the driving chamber, in order to facilitate the detection and coordination between the inner end of the detection connecting rod 5 and the detection end of the detection element 4, the inner end of the detection connecting rod 5 is connected to one end of the detection lever 8, and the other end of the detection lever 8 is a free end and can correspond to the position of the detection end of the detection element 4.

[0026] In addition, in this embodiment, the detection connecting rod 5 and the detection lever 8 form an L-shaped structure, and the detection connecting rod 5 and the detection lever 8 are connected and fixed by fasteners. Of course, the detection connecting rod 5 and the detection lever 8 can also be an integrated structure.

[0027] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper film detection assembly for a straw packaging machine, comprising a plurality of conveying rollers (3) rotatably connected to a frame (1) and used for conveying paper film (2), characterized in that: A detection element (4) is provided on the frame (1) between two of the adjacent conveying rollers (3) for conveying the paper film (2), and the detection element (4) is capable of detecting the paper film (2) between the corresponding two conveying rollers (3), and the detection element (4) is electrically connected to the control assembly; The frame (1) is hingedly connected to a detection link (5), the outer end of the detection link (5) can naturally hang down and abut against the upper surface of the paper film (2) between the corresponding two conveying rollers (3), and the inner end of the detection link (5) cooperates with the detection end of the detection element (4). When there is no paper film (2) between the corresponding two conveying rollers (3), the outer end of the detection link (5) naturally hangs down to drive its inner end to rotate and separate from the detection end of the detection element (4).

2. The paper film detection assembly of the straw packaging machine according to claim 1, characterized in that: The outer end of the detection connecting rod (5) is fixedly connected to the inner end of the counterweight (6) through a fastener, and the outer end of the counterweight (6) can rest on the upper surface of the paper film (2) between the corresponding two conveying rollers (3).

3. The paper film detection assembly of the straw packaging machine according to claim 2, characterized in that: The lower surface of the outer end of the counterweight block (6) in contact with the paper film (2) is a curved surface structure.

4. The paper film detection assembly of the straw packaging machine according to claim 1, characterized in that: A driving chamber separated from the outside is provided in the frame (1), a detection window (7) is provided on the frame (1) for connecting the driving chamber with the outside, the detection connecting rod (5) is hingedly engaged with the frame (1) outside the detection window (7), and the inner end of the detection connecting rod (5) extends into the detection window (7) to the driving chamber, and the detection element (4) is fixed in the driving chamber.

5. The paper film detection assembly of the straw packaging machine according to claim 4, characterized in that: The inner end of the detection connecting rod (5) is connected to one end of the detection lever (8), and the other end of the detection lever (8) is a free end and can correspond to the detection end position of the detection element (4).

6. The paper film detection assembly of the straw packaging machine according to claim 5, characterized in that: An L-shaped structure is formed between the detection connecting rod (5) and the detection shifting rod (8), and the detection connecting rod (5) and the detection shifting rod (8) are an integrated structure or a split structure connected and fixed by fasteners.

Images