Residual film recycling machine automatic discharging device with alarm function

Abstract

The invention provides a residual film recycling machine automatic discharging device with an alarm function, and relates to the technical field of residual film recycling machines. A residual film recycling machine automatic discharging device with an alarm function comprises a film box, a front packaging belt, a rear packaging belt, a transmission device and a plurality of monitoring mechanisms, and residual films are packaged into rolls through the same-direction rotation of the front packaging belt and the rear packaging belt in the film box. Opening and closing of the film box can be achieved through hinge joint of the fixed section and the opening and closing section of the film box to unload the film roll, the multiple monitoring mechanisms detect the distance of the sliding parts of the monitoring mechanisms inserted into the fixed parts in real time through the distance sensors to judge the size of the film roll, and the film roll is discharged until the distance between the sliding parts and the distance sensors reaches a set value. By means of the operation, the residual film recycling machine can achieve automatic discharging, the burden of workers is relieved, the situation that a packaging film box is blocked and damaged by a large film roll due to the fact that the packaging film box is not discharged in time is avoided, meanwhile, the size of the film roll can be controlled, and the situation that the film roll is too large or too small is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of residual film recovery machines, and in particular to an automatic unloading device of a residual film recovery machine with an alarm function. Background Art

[0002] When the residual film recycling machine is in use, the grabbed residual film needs to be packed into rolls and then discharged from the residual film recycling machine. However, most residual film recycling machines usually rely on the tractor driver to press a button and control the hydraulic cylinder to unload. However, because driving a tractor is boring, the tractor driver is very likely to forget to unload the collected residual film rolls due to fatigue. In addition, the tractor driver usually controls the unloading by feeling, and cannot achieve accurate quantitative unloading, or the machine is forced to walk to the end of the field before unloading. Over time, the packaging belt of the film collection box will deviate and be damaged, and eventually a larger film roll will be stuck in the film box. It is time-consuming and laborious to take it out manually, and the larger film roll will often damage the packaging film box at the rear of the residual film machine.

[0003] Therefore, there is an urgent need for an automatic unloading device for a residual film recovery machine with an alarm function and the ability to automatically unload the film roll after it has formed a certain size, so as to reduce the burden on the staff and avoid the packaging film box being damaged by the large film roll formed due to untimely unloading. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an automatic unloading device for a residual film recycling machine with an alarm function, comprising a film box, a front packing belt, a rear packing belt, a transmission device and a plurality of monitoring mechanisms, wherein the film box is divided into a fixed section and an opening and closing section, and the top of the opening and closing section of the film box is hinged with the top of the fixed section of the film box; the front packing belt is rotatably arranged in the fixed section of the film box; the rear packing belt is rotatably arranged in the opening and closing section of the film box; the transmission device synchronously drives the front packing belt and the rear packing belt to rotate in the same direction; a plurality of monitoring mechanisms are uniformly fixed to the inner top of the fixed section of the film box along the width direction of the film box, and the monitoring mechanism comprises a fixed part and a sliding part, the fixed part is fixed to the fixed section of the film box, a cavity is arranged inside the fixed part, the sliding part is elastically inserted into the cavity of the fixed part, a distance sensor is arranged in the cavity of the fixed part, and the distance sensor is inserted into one end of the cavity of the fixed part away from the sliding part.

[0005] Preferably, the fixed section of the membrane box is two symmetrically arranged front side plates, and the opening and closing section of the membrane box is two symmetrically arranged rear side plates, and the top ends of the two front side plates are fixedly connected with top cross beams.

[0006] Preferably, the front side plate and the rear side plate are hinged at the top ends, a hydraulic cylinder is provided between the front side plate and the rear side plate, and both ends of the hydraulic cylinder are rotatably connected to the front side plate and the rear side plate respectively.

[0007] Preferably, the front packing belt is sleeved on a plurality of front belt rollers, which are rotatably connected to the two front side plates. A front tensioning roller is also arranged inside the plurality of front belt rollers, which abuts against the inner side of the front packing belt and is elastically connected to the two front side plates.

[0008] Preferably, the rear packing belt is sleeved on a plurality of rear belt rollers, a plurality of front belt rollers are rotatably connected to the two rear side plates, a rear tensioning roller is also arranged inside the plurality of rear belt rollers, the rear tensioning roller abuts against the inner side of the rear packing belt and is elastically connected to the two rear side plates.

[0009] Preferably, the transmission device is two sets of sprocket chains, which are respectively mounted on multiple front belt rollers and multiple rear belt rollers, and the two sets of sprocket chains are coaxially arranged at the hinge of the front side plate and the rear side plate.

[0010] Preferably, a plurality of through grooves are symmetrically provided on the side wall of the fixing part, and the plurality of through grooves are connected to the cavity in the fixing part. A connecting block is fixedly connected to one end of the fixing part away from the sliding part, and the connecting block is arranged in a T shape, and the T-shaped lateral end of the connecting block is fixedly connected to the top cross beam.

[0011] Preferably, the sliding part is inserted into one end of the fixed part and fixed with a plurality of limit blocks, and the plurality of limit blocks and the plurality of through grooves correspond one to one and slide together; two slide grooves are symmetrically arranged in the sliding part, and the open ends of the slide grooves face the fixed part.

[0012] Preferably, one end of the sliding portion away from the fixing portion is rotatably connected to an abutment wheel.

[0013] Preferably, two groups of buffer components are symmetrically arranged in the cavity of the fixed part, and the buffer component includes a screw rod threadedly connected to the fixed part, one end of the screw rod extends into the cavity of the fixed part, the screw rod and the slide groove are slidably plugged into each other, and one end of the screw rod located in the cavity of the fixed part is sleeved with a spring, one end of the spring abuts against the fixed part, and the other end of the spring abuts against the sliding part.

[0014] The beneficial effects of the present invention are as follows: the residual film is packed into rolls by utilizing the same-direction rotation of the front packing belt and the rear packing belt in the film box, and the opening and closing of the film box can be realized by utilizing the hinged relationship between the fixed section and the opening and closing section of the film box so as to unload the packed film rolls. The multiple monitoring mechanisms in the film box detect the distance of the sliding part of the monitoring mechanism inserted into the fixed part in real time through the distance sensor to determine the size of the film roll. After the distance between the sliding part and the distance sensor reaches a predetermined value, the opening and closing section and the fixed section of the film box are controlled to open to discharge the qualified film rolls. This operation enables the residual film recovery machine to automatically unload, reduces the burden on the staff, and avoids the packing film box being damaged by the large film rolls formed due to untimely unloading. At the same time, the size of the film roll can also be controlled to avoid the film roll being too large or too small.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an automatic unloading device of a residual film recycling machine with an alarm function according to an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the side view structure of an automatic unloading device of a residual film recycling machine with an alarm function according to an embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of the internal structure of an automatic unloading device of a residual film recycling machine with an alarm function according to an embodiment of the present application;

[0020] Figure 4 is a schematic diagram of the internal structure of a monitoring mechanism according to an embodiment of the present application;

[0021] Figure 5 is an exploded diagram of a local structure of a monitoring mechanism according to an embodiment of the present application;

[0022] Figure 6 According to the embodiment of the present application Figure 5 A is an enlarged schematic diagram.

[0023] Icons: 1. Membrane box; 11. Front side plate; 12. Rear side plate; 13. Hydraulic cylinder; 14. Top crossbeam; 2. Front packing belt; 3. Rear packing belt; 4. Monitoring mechanism; 41. Fixed part; 411. Through groove; 412. Connecting block; 42. Sliding part; 421. Limit block; 422. Slide groove; 43. Abutment wheel; 44. Buffer assembly; 441. Screw; 442. Spring; 45. Distance sensor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0025] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] Embodiment 1, as Figure 1-Figure 6 As shown, according to an embodiment of the present application, an automatic unloading device of a residual film recycling machine with an alarm function includes a film box 1, a front packing belt 2, a rear packing belt 3, a transmission device and multiple monitoring mechanisms 4. It should be noted that the automatic unloading device of a residual film recycling machine with an alarm function of the present application is arranged on agricultural machinery such as tractors in the prior art, so as to be applied to the work of packing and automatically unloading in the process of residual film recovery in farmland, wherein a signal receiving device, an audible and visual alarm device and a controller are arranged in the cab of the agricultural machinery, the signal receiving device is used to receive the electrical signal transmitted by the monitoring mechanism 4, the signal receiving device determines the size of the film roll by analyzing the electrical signal, if it reaches a predetermined threshold value, the driver operates the controller to control the film box 1 to open for unloading, the signal receiving device analyzes the electrical signal, and if the size of the film roll exceeds the safety threshold, the audible and visual alarm device is driven to send an audible and visual signal to remind the driver, specifically, the signal receiving device and the audible and visual alarm device are prior art and will not be described herein.

[0027] like Figure 1-Figure 3As shown, the membrane box 1 is divided into a fixed section and an opening and closing section, and the top of the opening and closing section of the membrane box 1 is hinged to the top of the fixed section of the membrane box 1; specifically, the fixed section of the membrane box 1 is two symmetrically arranged front side panels 11, and the opening and closing section of the membrane box 1 is two symmetrically arranged rear side panels 12, the top ends of the two front side panels 11 are fixedly connected with a top cross beam 14, the top ends of the front side panels 11 and the rear side panels 12 are hinged, and a hydraulic cylinder 13 is arranged between the front side panels 11 and the rear side panels 12, and the two ends of the hydraulic cylinder 13 are rotatably connected to the front side panels 11 and the rear side panels 12 respectively. It can be understood that through the extension and contraction of the hydraulic cylinder 13, the rear side panels 12 can be driven to rotate relative to the front side panels 11, that is, the opening and closing of the membrane box 1 is realized.

[0028] like Figure 1-Figure 3 As shown, the front packing belt 2 is rotatably arranged on the fixed section of the film box 1. Specifically, the front packing belt 2 is sleeved on multiple front belt rollers, and the multiple front belt rollers are rotatably connected to the two front side plates 11. A front tensioning roller is also arranged inside the multiple front belt rollers, and the front tensioning roller abuts against the inner side of the front packing belt 2 and is elastically connected to the two front side plates 11; the rear packing belt 3 is rotatably arranged on the opening and closing section of the film box 1; specifically, the rear packing belt 3 is sleeved on multiple rear belt rollers, and the multiple front belt rollers are rotatably connected to the two rear side plates 12. A rear tensioning roller is also arranged inside the multiple rear belt rollers, and the rear tensioning roller It abuts against the inner side of the rear packing belt 3 and is elastically connected to the two rear side plates 12; the transmission device synchronously drives the front packing belt 2 and the rear packing belt 3 to rotate in the same direction. Specifically, the transmission device is two sets of sprocket chains, which are respectively sleeved on multiple front belt rollers and multiple rear belt rollers. The two sets of sprocket chains are coaxially arranged at the hinges of the front side plate 11 and the rear side plate 12. It can be understood that the two sets of sprocket chains can be driven by the power device on the agricultural machine to rotate synchronously in the same direction, which will drive the front packing belt 2 and the rear packing belt 3 to rotate synchronously in the same direction (in the specific embodiment of the present application, such as Figure 2 and Figure 3 As shown in the figure, the front packing belt 2 and the rear packing belt 3 rotate clockwise), it can be further understood that the synchronous clockwise rotation of the front packing belt 2 and the rear packing belt 3 will cause the residual film entering the front packing belt 2 to be conveyed toward the rear packing belt 3, and through the continuous rotation of the front packing belt 2 and the rear packing belt 3, the residual film rolls at the intersection of the front packing belt 2 and the rear packing belt 3 and gradually forms a film roll.

[0029] like Figure 1 , Figure 3-Figure 6As shown, a plurality of monitoring mechanisms 4 are evenly fixed to the inner top of the fixed section of the membrane box 1 along the width direction of the membrane box 1, and the monitoring mechanism 4 includes a fixed portion 41 and a sliding portion 42. The fixed portion 41 is fixed to the fixed section of the membrane box 1, and a cavity is provided inside the fixed portion 41. The sliding portion 42 is elastically inserted into the cavity of the fixed portion 41, and a distance sensor 45 is provided in the cavity of the fixed portion 41. The distance sensor 45 is inserted into one end of the cavity of the fixed portion 41 away from the sliding portion 42.

[0030] Specifically, a plurality of through grooves 411 are symmetrically provided on the side wall of the fixing portion 41, and the plurality of through grooves 411 are connected to the cavity in the fixing portion 41. A connecting block 412 is fixedly connected to one end of the fixing portion 41 away from the sliding portion 42. The connecting block 412 is arranged in a T shape, and the T-shaped lateral end of the connecting block 412 is fixedly connected to the top cross beam 14. It can be understood that this design leaves a spacing between the fixing portion 41 and one end of the connecting block 412.

[0031] Among them, one end of the sliding part 42 inserted into the fixed part 41 is fixedly connected with a plurality of limit blocks 421, and the plurality of limit blocks 421 correspond to the plurality of through grooves 411 one by one and slide together, thereby through the sliding cooperation between the limit blocks 421 and the through grooves 411, a stable plug-in relationship can be formed between the sliding part 42 and the fixed part 41; two slide grooves 422 are symmetrically arranged in the sliding part 42, and the open end of the slide groove 422 faces the fixed part 41.

[0032] Furthermore, one end of the sliding portion 42 away from the fixed portion 41 is rotatably connected to an abutment wheel 43. It should be noted that the design of the abutment wheel 43 can reduce the damage caused by the lateral force generated by the film roll on the monitoring mechanism 4 during rotation, while reducing the possibility of entanglement between the residual film and the monitoring mechanism 4.

[0033] It can be understood that, firstly, the design of multiple monitoring mechanisms 4 can monitor the size of the film roll in all directions, thereby improving the accuracy of the detection results as much as possible. Secondly, the film roll touches the abutment wheel 43, and the abutment wheel 43 pushes the sliding part 42 to move toward the inside of the fixed part 41, so that the distance between the end of the sliding part 42 inserted in the fixed part 41 and the distance sensor 45 changes. The distance sensor 45 monitors the change of the distance in real time to determine the size of the film roll, thereby realizing real-time monitoring of the size of the film roll during operation.

[0034] Specifically, the threshold value for the film roll being close to a full package can be set as when the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is X centimeters (the value of X makes the film roll size approximately 80% of the full package volume, and this value can be fine-tuned according to the specifications of different film boxes 1 and the characteristics of residual film), XY centimeters are set as the warning range (the value of Y makes the film roll size approximately 90% of the full package volume), and less than Y centimeters is set as the alarm range.

[0035] In a specific embodiment of the present application, the sound and light alarm device emits green light and a short buzzer when the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is X centimeters; the sound and light alarm device emits green light and a rapid buzzer when the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is between XY centimeters; the sound and light alarm device emits red light and a continuous buzzer when the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is less than Y centimeters.

[0036] When the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is less than X centimeters, a signal is immediately sent to the controller through the signal receiving device, and a green light and a short buzzer are emitted through the sound and light alarm device. The driver operates the controller to control the hydraulic cylinder 13 to extend so that the film box 1 is opened and the film roll is unloaded;

[0037] In actual use, in order to facilitate loading and transportation, the film roll will be unloaded at the edge of the field or a position not far from the edge of the field as much as possible. However, the film roll may have reached the predetermined threshold value X centimeters before the agricultural machine reaches the edge of the field. At this time, the machine will continue to run, and the distance sensor 45 detects that the average distance from the sliding part 42 to the distance sensor 45 is between XY centimeters. At this time, the signal receiving device sends a signal to the controller and emits a green light and a rapid beeping sound and light signal through the sound and light alarm device to remind the driver. If the size of the film roll makes the average distance from the sliding part 42 to the distance sensor 45 less than Y centimeters, the signal receiving device sends a signal to the controller and emits a red light and a continuous beeping sound and light signal through the sound and light alarm device to warn the driver to unload the package in time by operating the controller to avoid damage to the front packing belt 2 and the rear packing belt 3 due to excessive film roll.

[0038] Among them, in order to unload the film rolls as close to the machine at the end of the field as possible, a combination of a GPS positioning module and a geomagnetic sensor can be used. The accuracy of the GPS positioning module is within 3 meters, which is used to macroscopically determine the approximate position of the agricultural machinery in the farmland; the geomagnetic sensor is used to accurately identify the boundary of the field, and its sensing accuracy can reach ±0.5 meters; an identification magnetic strip is set in advance at the boundary of the field, and the geomagnetic sensor can accurately identify it when it is close. When the film box 1 meets the unloading conditions and the equipment is within 5 meters of the boundary of the field at the same time (judged by the coordinated positioning of the two), the controller will actively trigger the unloading instruction to ensure that the film rolls are concentratedly unloaded near the field for easy loading.

[0039] The field boundary sensing device and unloading control program algorithm are optimized as follows: add delayed judgment logic. When the geomagnetic sensor detects the field boundary signal for the first time, it will delay for 3-5 seconds to confirm again to avoid misjudgment due to short-term sensor fluctuations. At the same time, combined with GPS positioning speed information, unloading is allowed only when the equipment moving speed is lower than 0.5 m / s (close to the parking unloading state) and is stably located near the field boundary, ensuring that the film roll is accurately unloaded at the ideal loading position.

[0040] Embodiment 2, as Figure 3-Figure 6 As shown, two groups of buffer components 44 are symmetrically arranged in the cavity of the fixed part 41, and the buffer component 44 includes a screw rod 441 threadedly connected to the fixed part 41, one end of the screw rod 441 extends into the cavity of the fixed part 41, the screw rod 441 and the slide groove 422 are slidably plugged into each other, and one end of the screw rod 441 located in the cavity of the fixed part 41 is sleeved with a spring 442, one end of the spring 442 abuts against the fixed part 41, and the other end of the spring 442 abuts against the sliding part 42.

[0041] It can be seen from this that, firstly, when the sliding part 42 is inserted into the fixed part 41, the screw 441 will be inserted into the slide groove 422. At this time, the spring 442 is squeezed, and the elastic force of the spring 442 has a buffering effect on the sliding part 42, thereby preventing the sliding part 42 from being hit by the rolling of the film roll, causing the sliding part 42 to repeatedly and quickly move toward the distance sensor 45, interfering with the monitoring of the distance sensor 45. At the same time, it can also prevent the sliding part 42 from quickly hitting the distance sensor 45, causing damage to the distance sensor 45; secondly, the distance that the screw 441 extends into the fixed part 41 can be adjusted by rotating the screw 441, so that when the sliding part 42 is inserted into the extreme position on the inner side of the fixed part 41, the sliding part 42 will not touch the distance sensor 45, thereby protecting the distance sensor 45.

[0042] It should be noted that the specific models and specifications of the hydraulic cylinder 13, the front packing belt 2, the rear packing belt 3, the distance sensor 45, the screw 441, the spring 442 and the pressure sensor 45 need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0043] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An automatic unloading device for a residual film recycling machine with an alarm function, characterized in that: include: A membrane box (1), wherein the membrane box (1) is divided into a fixed section and an opening and closing section, and the top of the opening and closing section of the membrane box (1) is hinged to the top of the fixed section of the membrane box (1); A front packing belt (2), the front packing belt (2) being rotatably arranged on a fixed section of the film box (1); A rear packing belt (3), the rear packing belt (3) being rotatably arranged on the opening and closing section of the film box (1); A transmission device, wherein the transmission device synchronously drives the front packing belt (2) and the rear packing belt (3) to rotate in the same direction; A plurality of monitoring mechanisms (4), wherein the plurality of monitoring mechanisms (4) are uniformly fixed to the inner top of the fixed section of the membrane box (1) along the width direction of the membrane box (1), and the monitoring mechanism (4) comprises a fixed portion (41) and a sliding portion (42), wherein the fixed portion (41) is fixed to the fixed section of the membrane box (1), a cavity is provided inside the fixed portion (41), the sliding portion (42) is elastically inserted into the cavity of the fixed portion (41), a distance sensor (45) is provided in the cavity of the fixed portion (41), and the distance sensor (45) is inserted into one end of the cavity of the fixed portion (41) away from the sliding portion (42).

2. The automatic unloading device for residual film recycling machine with alarm function as claimed in claim 1 is characterized in that: The fixed section of the membrane box (1) is two symmetrically arranged front side plates (11), and the opening and closing section of the membrane box (1) is two symmetrically arranged rear side plates (12). The top ends of the two front side plates (11) are fixedly connected with a top crossbeam (14).

3. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 2 is characterized in that: The front side plate (11) and the rear side plate (12) are hinged at their top ends, a hydraulic cylinder (13) is provided between the front side plate (11) and the rear side plate (12), and two ends of the hydraulic cylinder (13) are rotatably connected to the front side plate (11) and the rear side plate (12) respectively.

4. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 3 is characterized in that: The front packing belt (2) is sleeved on a plurality of front belt rollers, which are rotatably connected to the two front side plates (11). A front tensioning roller is also arranged inside the plurality of front belt rollers, which abuts against the inner side of the front packing belt (2) and is elastically connected to the two front side plates (11).

5. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 3 is characterized in that: The rear packing belt (3) is sleeved on a plurality of rear belt rollers, a plurality of front belt rollers are rotatably connected to the two rear side plates (12), and a rear tensioning roller is also arranged inside the plurality of rear belt rollers. The rear tensioning roller abuts against the inner side of the rear packing belt (3) and is elastically connected to the two rear side plates (12).

6. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 2, characterized in that: The transmission device comprises two sets of sprocket chains, which are respectively sleeved on a plurality of front belt rollers and a plurality of rear belt rollers. The two sets of sprocket chains are coaxially arranged at the hinge of the front side plate (11) and the rear side plate (12).

7. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 2, characterized in that: A plurality of through slots (411) are symmetrically provided on the side wall of the fixing portion (41), the plurality of through slots (411) being in communication with the cavity in the fixing portion (41), a connecting block (412) being fixedly connected to one end of the fixing portion (41) away from the sliding portion (42), the connecting block (412) being arranged in a T shape, and a T-shaped transverse end of the connecting block (412) being fixedly connected to the top crossbeam (14).

8. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 7, characterized in that: One end of the sliding portion (42) inserted into the fixed portion (41) is fixedly connected with a plurality of limit blocks (421), and the plurality of limit blocks (421) and the plurality of through slots (411) correspond to each other one by one and are slidably matched; Two sliding grooves (422) are symmetrically arranged in the sliding portion (42), and the open ends of the sliding grooves (422) face the fixing portion (41).

9. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 1, characterized in that: One end of the sliding portion (42) away from the fixing portion (41) is rotatably connected to an abutment wheel (43).

10. The automatic unloading device of residual film recycling machine with alarm function as claimed in claim 8, characterized in that: Two groups of buffer components (44) are symmetrically arranged in the cavity of the fixed part (41), and the buffer component (44) includes a screw rod (441) threadedly connected to the fixed part (41), one end of the screw rod (441) extends into the cavity of the fixed part (41), the screw rod (441) and the slide groove (422) are slidably plugged into each other, and one end of the screw rod (441) located in the cavity of the fixed part (41) is sleeved with a spring (442), one end of the spring (442) abuts against the fixed part (41), and the other end of the spring (442) abuts against the sliding part (42).

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