Waste film collecting mechanism of special-shaped bag filling and packaging machine

Abstract

A waste film collecting mechanism of a special-shaped bag filling and packaging machine comprises a rack, a control device, a winding disc, a winding driving piece, an automatic detection structure and a plurality of guide rollers, the winding disc is provided with a winding shaft, the winding driving piece is connected with the winding shaft of the winding disc and drives the winding shaft to rotate, and the automatic detection structure comprises a swing rod, a film detection roller, a spring and at least one detection piece. The swing rod is rotatably installed on the rack, the film detection roller is installed on the swing rod, the two ends of the spring are connected with the rack and the swing rod respectively, the detection piece is installed on the rack and located on the rotating route of the swing rod, and the detection piece and the winding driving piece are electrically connected with the control device. According to the waste film automatic winding device, the winding disc can be automatically controlled to work according to the fed waste film, the purpose of automatically winding the waste film is achieved, automatic winding and stopping can be conducted in time according to the situation of the waste film, the situation that the waste film is wound and falls on the ground is avoided, and energy can be saved.

Description

Technical Field

[0001] The utility model relates to a waste film collecting mechanism of a special-shaped bag filling and packaging machine. Background Art

[0002] The existing special-shaped bag filling and packaging machine has an unreasonable structure, and the waste film collection cannot be completed automatically, that is, it automatically reels and stops according to the waste film sent. Utility Model Content

[0003] The purpose of the utility model is to provide a waste film collection mechanism for a special-shaped bag filling and packaging machine, which can automatically and quickly complete the collection of waste film. The technical solution adopted is as follows:

[0004] A waste film collection mechanism for a special-shaped bag filling and packaging machine is characterized in that it includes a frame, a control device, a winding disk, a winding drive, an automatic detection structure, and multiple guide rollers. The winding disk, the winding drive, the automatic detection structure, and the multiple guide rollers are respectively installed on the frame, the winding disk has a winding shaft, the winding drive is connected to the winding shaft of the winding disk and drives the winding shaft to rotate, the automatic detection structure includes a swing rod, a film detection roller, a spring, and at least one detection member, the swing rod is rotatably installed on the frame, the film detection roller is installed on the swing rod, the two ends of the spring are respectively connected to the frame and the swing rod, the detection member is installed on the frame and the detection member is located on the rotation path of the swing rod, and the detection member and the winding drive are respectively electrically connected to the control device.

[0005] In a preferred solution, the detection member is a photoelectric detection device, which detects the rocker and sends out a photoelectric detection signal, and the control device receives the photoelectric detection signal and controls the winding drive member to start or stop working.

[0006] In a preferred solution, the winding drive component includes a servo motor and a reduction box, the output shaft of the servo motor is connected to the reduction box, and the output shaft of the reduction box is connected to the winding shaft of the winding reel.

[0007] In a preferred solution, the waste film collection mechanism further comprises a swing rod limiter, which is mounted on the frame and located below the swing rod. The function of the swing rod limiter is to limit the rotation angle of the swing rod when the swing rod moves downward under the tension of the spring, so as to prevent the swing rod from rotating too much.

[0008] Compared with the prior art, the beneficial effect of the utility model is that, since an automatic detection structure is provided, the operation of the winding disk can be automatically controlled according to the waste film delivered, so as to achieve the purpose of automatically winding up the waste film. Not only can it automatically wind up and stop according to the waste film situation in time to avoid the waste film from getting entangled or falling to the ground, but it can also save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0010] Figure 2 yes Figure 1 a front view of the illustrated embodiment;

[0011] Figure 3 yes Figure 1 a rear perspective view of the illustrated embodiment;

[0012] Figure 4 yes Figure 1 A circuit schematic block diagram of the illustrated embodiment. DETAILED DESCRIPTION

[0013] like Figure 1-4 As shown, the waste film collection mechanism of the special-shaped bag filling and packaging machine in one embodiment of the present application includes a frame 7, a control device 2, a reel 3, a reel drive 4, an automatic detection structure 5, and a plurality of guide rollers 1. The reel 3, the reel drive 4, the automatic detection structure 5, and the plurality of guide rollers 1 are respectively mounted on the frame 7, the reel 3 has a reel shaft, the reel drive 4 is connected to the reel shaft of the reel 3 and drives the reel shaft to rotate, the automatic detection structure 5 includes a swing rod 501, a film detection roller 502, a spring 503, and at least one detection member 504, the swing rod 501 is rotatably mounted on the frame 7, the film detection roller 502 is mounted on the swing rod 501, the two ends of the spring 503 are respectively connected to the frame 7 and the swing rod 501, the detection member 504 is mounted on the frame 7 and the detection member 504 is located on the rotation path of the swing rod 501, and the detection member 504 and the reel drive 4 are respectively electrically connected to the control device 2. In this embodiment, the number of the detection members 504 is two.

[0014] like Figure 1 , 4 As shown, an optional embodiment of the present application, the detection member 504 is a photoelectric detection device, the photoelectric detection device detects the swing rod 501 and sends a photoelectric detection signal, the control device 2 receives the photoelectric detection signal and controls the winding drive member 4 to work or stop working. Since there are two detection members 504 in this embodiment, the photoelectric detection signal of the detection member 504 located at the top allows the control device 2 to control the winding drive member 4 to work; the photoelectric detection signal of the detection member 504 located at the bottom allows the control device 2 to control the winding drive member 4 to stop working.

[0015] In an optional embodiment of the present application, the number of the detection member 504 is one, and the detection member 504 is located at the top. The photoelectric detection signal of the detection member 504 allows the control device 2 to control the winding drive member 4 to work. If there is no photoelectric detection signal, the control device 2 controls the winding drive member 4 to stop working.

[0016] In an optional embodiment of the present application, the number of the detection member 504 is one and the detection member 504 is located at the bottom. The photoelectric detection signal of the detection member 504 allows the control device 2 to control the winding drive member 4 to stop working. Without the photoelectric detection signal, the control device 2 controls the winding drive member 4 to work.

[0017] like Figure 4 As shown, in an optional embodiment of the present application, the control device 2 is a PLC control device.

[0018] like Figure 1 , 2 As shown, an optional embodiment of the present application, the winding drive component 4 includes a servo motor 401 and a reduction box 402 , the output shaft of the servo motor 401 is connected to the reduction box 402 , and the output shaft of the reduction box 402 is connected to the winding shaft of the winding disk 3 .

[0019] like Figure 1 , 2 As shown, in an optional embodiment of the present application, the waste film collection mechanism further includes a swing rod limiter 6, which is mounted on the frame 7 and is located below the swing rod 501. The function of the swing rod limiter 6 is to limit the rotation angle of the swing rod 501 when the swing rod 501 moves downward under the pulling force of the spring 503, so as to prevent the swing rod 501 from rotating too much.

[0020] As waste film is continuously delivered, the waste film passes under the film detection roller 502 and is wound up by the winding disk 3. The waste film generates an upward pulling force on the film detection roller 502, and the pulling force overcomes the elastic force of the spring 503, driving the film detection roller 502 to move upward to the highest point. At this time, the detection member 504 detects the film detection roller 502 and sends out a photoelectric detection signal. The control device 2 receives the photoelectric detection signal and controls the servo motor 401 to work.

[0021] When all the waste film is sent out, the film detection roller 502 loses the upward pulling force of the waste film, so the spring 503 pulls the film detection roller 502 downward, and the rocker arm 501 rotates downward until the film detection roller 502 is against the rocker arm limiter 6. The upper detection member 504 cannot detect the film detection roller 502 and does not send out a photoelectric detection signal. The lower detection member 504 detects the film detection roller 502 and sends out a photoelectric detection signal. When the control device 2 receives the photoelectric detection signal, it controls the servo motor 401 to stop working.

[0022] In addition, it should be noted that the names of the various parts of the specific embodiments described in this specification may be different, and any equivalent or simple changes made based on the structure, features and principles described in the utility model patent concept are included in the protection scope of the utility model patent. The technical personnel of the technical field to which the utility model belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A waste film collecting mechanism for a special-shaped bag filling and packaging machine, characterized in that: It includes a frame, a control device, a winding disk, a winding drive, an automatic detection structure, and multiple guide rollers. The winding disk, the winding drive, the automatic detection structure, and the multiple guide rollers are respectively installed on the frame. The winding disk has a winding shaft. The winding drive is connected to the winding shaft of the winding disk and drives the winding shaft to rotate. The automatic detection structure includes a swing rod, a film detection roller, a spring, and at least one detection member. The swing rod is rotatably installed on the frame, and the film detection roller is installed on the swing rod. Both ends of the spring are respectively connected to the frame and the swing rod. The detection member is installed on the frame and the detection member is located on the rotation path of the swing rod. The detection member and the winding drive are respectively electrically connected to the control device.

2. The waste film collecting mechanism of the special-shaped bag filling and packaging machine according to claim 1, characterized in that: The detection member is a photoelectric detection device, which detects the swing rod and sends out a photoelectric detection signal. The control device receives the photoelectric detection signal and controls the winding drive member to work or stop working.

3. The waste film collecting mechanism of the special-shaped bag filling and packaging machine according to claim 1, characterized in that: The winding drive component includes a servo motor and a reduction box. The output shaft of the servo motor is connected to the reduction box, and the output shaft of the reduction box is connected to the winding shaft of the winding disk.

4. The waste film collecting mechanism of the special-shaped bag filling and packaging machine according to claim 1, characterized in that: The waste film collecting mechanism also includes a swing rod limiter, which is installed on the frame and is located below the swing rod.

5. The waste film collecting mechanism of the special-shaped bag filling and packaging machine according to any one of claims 1 to 4, characterized in that: The control device is a PLC control device.

Images