Film unfolding and pressing device

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a film unfolding and pressing device which comprises a rack, a left elastic adjusting assembly, a right elastic adjusting assembly, a limiting assembly and a film unfolding roller. The film unfolding and pressing device is reasonable and compact in structure, when the film unfolding and pressing device is used, the machine frame and a frame body of a seeding machine can be fixedly installed together, the film unfolding and pressing device is installed on the frame body in front of a seeder of the seeding machine, and the front end of the frame body of the seeding machine is dragged by a tractor to move forwards; similarly, by arranging a right elastic adjusting assembly, the pressure of the right film pressing wheel on the right part of the film on the ground surface when the right film pressing wheel moves forwards along with the rack can be adjusted, so that the film can be flatly attached to the ground; meanwhile, when large soil blocks, grass roots or stones are encountered in the film pressing process, the phenomenon that the left film pressing wheel and the right film pressing wheel jump up in the film pressing process, and consequently film pressing is not in place can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and is a film spreading and pressing device. Background Technique

[0002] The plastic film mulching seeder first mulches the film and then punches holes in the film for sowing and covers the holes with soil. After emergence, there is no need for manual seedling release, which saves labor and is safe, and can ensure that the seedlings are neat, strong and complete, and is suitable for large-area plastic film mulching sowing operations; before covering the plastic film, first lower the plastic film mulching machine to the working height, pull out a part of the plastic film and bury it. After starting, under the traction of the tractor, the soil collector pushes the soft soil that has been cultivated on the ground surface from both sides of the ridge to the middle to form a ridge; the herringbone shaping plate divides the ridge soil to both sides to form a ridge surface and smooths the ridge surface; the furrow opener turns the soil outwards on both sides of the ridge according to the ridge width requirement to open a plastic film furrow; the roller compacts the ridge surface, crushes the soil blocks, and presses the hard objects such as uncrushed soil blocks and stones into the ridge surface soil to provide good conditions for film mulching; the film spreading mechanism rolls forward tightly pressed on the film by gravity, longitudinally tightens and smooths the film, eliminates wrinkles and plays a role in preventing wind; the film pressing wheel presses both sides of the plastic film into the plastic film furrow to prevent the wind from blowing under the film from both sides, and its lateral force transversely tightens the film; the soil covering disc turns the inwards-turned soil and presses it on both sides of the unfolded plastic film to bury the plastic film; the soil baffle can effectively control the soil covering from being thrown deep into the ridge surface, so as to ensure the width of the light receiving surface. Thus, all the film mulching operations are completed.

[0003] The working quality of the plastic film mulching machine mainly depends on the quality of film mulching and the fixing degree of the film. The plastic film mulching machine uses the film pressing wheel to closely attach the plastic film to the ridge surface. When working, the film pressing wheel walks at the lower part of the inclined surface on both sides of the ridge, and the film is closely attached to the ridge under the action of the film pressing wheel; at the same time, due to the rotational resistance of the film releasing frame, the film is longitudinally tightened, so that the film is closely attached to the ridge surface as the machine advances.

[0004] The Chinese patent document with the publication number CN213404341U discloses an improved film laying mechanism, including a traction rod, a film pressing wheel traction rod, a film pressing wheel, a film spreading roller, a soil retaining plate, a film returning rod and a bearing seat. The traction rod is a special-shaped part, divided into a front section and a rear section. At least one group of traction rods is provided, with two in each group, mirror-symmetrical to each other. The front section of the traction rod is movably connected to the frame of the seeding machine, while the rear section of the traction rod directly or indirectly supports components such as the film pressing wheel traction rod, the film pressing wheel, the film spreading roller, the soil retaining plate, the film returning rod and the bearing seat. One end of the film pressing wheel traction rod is connected to the film pressing wheel, and the other end is connected to the traction rod. The bearing seats are fixedly connected to both ends of the traction rod, the film spreading roller is movably connected between the two bearing seats, the soil retaining plate is connected to the traction rod and can adjust the height from the ground up and down, and the film returning rod is connected to the traction rod. Both ends of the film returning rod are respectively movably connected to the two traction rods, and the film returning rod can rotate circumferentially and / or float up and down with the traction rod. However, when the film pressing wheel encounters a large soil block, grass root or stone during the film pressing process, the film pressing wheel will jump up, resulting in the phenomenon of incomplete film pressing. Summary of the Invention

[0005] The utility model provides a film spreading and pressing device, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problem that when the existing film pressing device encounters a large soil block, grass root or stone during the film pressing process, the film pressing wheel will jump up, resulting in incomplete film pressing.

[0006] The technical solution of the utility model is realized by the following measures: A film spreading and pressing device includes a frame, a left elastic adjustment component, a right elastic adjustment component, a limiting component and a film spreading roller. The left and right suspension rods are respectively passed through the rear part of the frame at intervals. The lower end of the left suspension rod is rotatably installed with a left film pressing wheel, and the lower end of the right suspension rod is rotatably installed with a right film pressing wheel. A left elastic adjustment component capable of adjusting the film pressing pressure of the left film pressing wheel is installed between the lower part of the left suspension rod and the frame, and a right elastic adjustment component capable of adjusting the film pressing pressure of the right film pressing wheel is installed between the lower part of the right suspension rod and the frame. A slide rod is fixedly installed at the lower part of the frame corresponding to the front position of the left film pressing wheel. A left sliding sleeve slidably installed on the outer side of the left part of the slide rod is fixedly installed on the front side of the lower end of the left suspension rod. A right sliding sleeve sleeved on the outer side of the right part of the slide rod is fixedly installed on the front side of the lower end of the right suspension rod. A limiting component capable of fixing the left sliding sleeve and the right sliding sleeve on the outer side of the slide rod is arranged on the outer sides of the left sliding sleeve and the right sliding sleeve. A film spreading roller is rotatably installed at the lower part of the frame corresponding to the front position of the slide rod.

[0007] The following is a further optimization and / or improvement of the above technical solution of the utility model:

[0008] The above-mentioned right elastic adjustment component and the left elastic adjustment component may have the same structure. The left elastic adjustment component includes a left adjustment plate, an upper limit mechanism, a lower limit plate, a left elastic reset member, and a lower adjustment pin. The rear part of the left adjustment plate is fixedly installed on the frame. On the upper side of the front part of the left adjustment plate, several first adjustment through holes are provided at intervals left and right. The upper end of the left suspension rod passes through one of the first adjustment through holes and is equipped with an upper limit mechanism. At least one second adjustment through hole is provided at intervals up and down on the outer side of the lower part of the left suspension rod. A lower adjustment pin is installed in one of the second adjustment through holes. A lower limit plate is sleeved on the outer side of the lower part of the left suspension rod at the position corresponding to the upper side of the lower adjustment pin. A left elastic reset member sleeved on the outer side of the left suspension rod is provided between the upper side of the lower limit plate and the lower side of the left adjustment plate.

[0009] The above-mentioned upper limit mechanism includes an upper limit plate and an upper adjustment pin. An installation through hole is provided at the upper end of the left suspension rod corresponding to the position above the left adjustment plate. The upper adjustment pin is installed in the installation through hole. An upper limit plate is sleeved on the outer side of the upper part of the left suspension rod at the position corresponding to the space between the upper adjustment pin and the upper side of the left adjustment plate.

[0010] A left connection component may be provided on the right side of the above-mentioned left film pressing wheel. The left connection component includes a rotating shaft, an installation sleeve, a locking screw, and a connecting rod. The central part of the right end of the left film pressing wheel is rotatably installed with a rotating shaft. The installation sleeve is sleeved on the outer side of the rotating shaft. A radially penetrating locking screw hole is provided on the outer side of the rear part of the installation sleeve. The locking screw is screwed in the locking screw hole. A connecting rod is fixedly installed between the front part of the installation sleeve and the rear part of the left sliding sleeve. The lower end of the left suspension rod is hinged and installed on the upper side of the connecting rod. A right connection component with the same structure as the left connection component and symmetrically arranged is provided on the left side of the right film pressing wheel.

[0011] The above-mentioned limit component may include a left limit screw and a right limit screw. Left limit sleeves are sleeved on the outer sides of the left parts of the sliding rods corresponding to the left and right ends of the left sliding sleeve. At least one internally and externally connected left limit screw hole is provided at intervals left and right on the outer side of the upper part of each left limit sleeve. A left limit screw is screwed in each left limit screw hole. Right limit sleeves are sleeved on the outer sides of the right parts of the sliding rods corresponding to the left and right ends of the right sliding sleeve. At least one internally and externally connected right limit screw hole is provided at intervals left and right on the outer side of the upper part of the right sliding sleeve. A right limit screw is screwed in each right limit screw hole.

[0012] Two L-shaped connecting arms may be fixedly installed at intervals left and right on the inner side of the front part of the frame corresponding to the position in front of the sliding rod. The film spreading roller is rotatably installed between the lower parts of the two connecting arms. The sliding rod is fixedly installed between the rear parts of the two connecting arms.

[0013] The structure of the utility model is reasonable and compact. When in use, the frame can be fixedly installed together with the frame of the seeder, and the film unfolding and pressing device in this application is installed on the frame in front of the seeder. The front end of the frame of the seeder is towed forward by a tractor. By setting the left elastic adjustment component, the pressure of the left film pressing wheel on the left part of the film on the ground when moving forward with the frame can be adjusted. Similarly, by setting the right elastic adjustment component, the pressure of the right film pressing wheel on the right part of the film on the ground when moving forward with the frame can be adjusted. In this way, the film can be flatly attached to the ground, avoiding the formation of wrinkles on the film, ensuring good soil covering conditions at the film edges, reducing the misalignment between the seeds and the film after punching. At the same time, when encountering larger soil clods, grass roots or stones during the film pressing process, the phenomenon that the left film pressing wheel and the right film pressing wheel jump up during film pressing, resulting in incomplete film pressing, can be avoided. By setting the sliding rod, the left sliding sleeve, the right sliding sleeve and the limiting component, the distance between the left sliding sleeve and the right sliding sleeve can be adjusted, thereby adjusting the distance between the left suspension rod and the right suspension rod, that is, adjusting the distance between the left film pressing wheel and the right film pressing wheel, and it can be applicable to films of various width specifications. By setting the film unfolding roller, it is convenient to flatten the film and facilitate the realization of film laying and seeding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG Figure 1 is a top view structural schematic diagram of the best embodiment of the utility model.

[0015] FIG Figure 2 is a side view sectional structural schematic diagram of the best embodiment of the utility model.

[0016] FIG Figure 3 is for FIG Figure 2 is an enlarged structural schematic diagram of part A in FIG.

[0017] FIG Figure 4 is for FIG Figure 1 is an enlarged structural schematic diagram of the left adjustment plate in FIG.

[0018] The codes in the drawings are respectively: 1 is the frame, 2 is the left suspension rod, 3 is the right suspension rod, 4 is the left film pressing wheel, 5 is the right film pressing wheel, 6 is the sliding rod, 7 is the left sliding sleeve, 8 is the right sliding sleeve, 9 is the film unfolding roller, 10 is the right elastic adjustment component, 11 is the left adjustment plate, 12 is the lower limit plate, 13 is the left elastic reset part, 14 is the lower adjustment pin, 15 is the first adjustment through hole, 16 is the second adjustment through hole, 17 is the upper limit plate, 18 is the upper adjustment pin, 19 is the rotating shaft, 20 is the mounting sleeve, 21 is the locking screw, 22 is the connecting rod, 23 is the right connecting component, 24 is the left limit screw, 25 is the right limit screw, 26 is the left limit sleeve, 27 is the right limit sleeve, 28 is the connecting arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The utility model is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solutions of the utility model and the actual situation.

[0020] In the present utility model, for the convenience of description, the description of the relative positional relationship of each component is carried out according to the layout mode of the accompanying drawings of the specification. For example, the positional relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the accompanying drawings of the specification. Figure 1 In the present utility model, for the convenience of description, the description of the relative positional relationship of each component is carried out according to the layout mode of the accompanying drawings of the specification. For example, the positional relationships such as front, rear, upper, lower, left, and right are determined according to the layout direction of the accompanying drawings of the specification. Figure 1 The following further describes the present utility model in conjunction with the embodiments and the accompanying drawings:

[0021] The following further describes the present utility model in conjunction with the embodiments and the accompanying drawings:

[0022] Embodiment 1: As shown in FIGS. Figure 1 、 2 、3, the film spreading and pressing device includes a frame 1, a left elastic adjustment component, a right elastic adjustment component 10, a limiting component, and a film spreading roller 9. The left and right sides of the rear part of the frame 1 are provided with a left suspension rod 2 and a right suspension rod 3 at intervals. The lower end of the left suspension rod 2 is rotatably installed with a left film pressing wheel 4, and the lower end of the right suspension rod 3 is rotatably installed with a right film pressing wheel 5. A left elastic adjustment component capable of adjusting the film pressing pressure of the left film pressing wheel 4 is installed between the lower part of the left suspension rod 2 and the frame 1, and a right elastic adjustment component 10 capable of adjusting the film pressing pressure of the right film pressing wheel 5 is installed between the lower part of the right suspension rod 3 and the frame 1. A slide bar 6 is fixedly installed at the lower part of the frame 1 corresponding to the front position of the left film pressing wheel 4. A left sliding sleeve 7 slidably installed on the outer side of the left part of the slide bar 6 is fixedly installed on the front side of the lower end of the left suspension rod 2. A right sliding sleeve 8 sleeved on the outer side of the right part of the slide bar 6 is fixedly installed on the front side of the lower end of the right suspension rod 3. A limiting component capable of fixing the left sliding sleeve 7 and the right sliding sleeve 8 on the outer side of the slide bar 6 is provided on the outer sides of the left sliding sleeve 7 and the right sliding sleeve 8. A film spreading roller 9 is rotatably installed at the lower part of the frame 1 corresponding to the front position of the slide bar 6.

[0023] According to requirements, both the left film pressing wheel 4 and the right film pressing wheel 5 are well-known prior arts. During use, the frame 1 can be fixedly installed together with the frame of the seeder, and the film unfolding and pressing device in this application can be installed on the frame in front of the seeder. The front end of the frame of the seeder is towed forward by a tractor. By setting the left elastic adjustment component, the pressure of the left film pressing wheel 4 on the left part of the film on the ground when moving forward with the frame 1 can be adjusted. Similarly, by setting the right elastic adjustment component 10, the pressure of the right film pressing wheel 5 on the right part of the film on the ground when moving forward with the frame 1 can be adjusted. This can make the film lie flat on the ground, avoid the formation of wrinkles on the film, ensure good soil covering conditions at the film edges, reduce the dislocation between the seeds and the film after punching. At the same time, when encountering larger soil clods, grass roots or stones during the film pressing process, it can prevent the left film pressing wheel 4 and the right film pressing wheel 5 from jumping up during film pressing, resulting in incomplete film pressing. By setting the slide rod 6, the left sliding sleeve 7, the right sliding sleeve 8 and the limiting component, the distance between the left sliding sleeve 7 and the right sliding sleeve 8 can be adjusted, thereby adjusting the distance between the left suspension rod 2 and the right suspension rod 3, that is, adjusting the distance between the left film pressing wheel 4 and the right film pressing wheel, which can be applicable to films of various width specifications. By setting the film unfolding roller 9, it is convenient to flatten the film and facilitate the realization of film laying and seeding operations.

[0024] According to actual needs, the above film unfolding and pressing device can be further optimized and / or improved:

[0025] Embodiment 2: As an optimization of the above embodiment, as shown in Figure 1 , 2 , 3, and 4, the right elastic adjustment component 10 has the same structure as the left elastic adjustment component. The left elastic adjustment component includes a left adjustment plate 11, an upper limit mechanism, a lower limit plate 12, a left elastic reset member 13, and a lower adjustment pin 14. The rear part of the left adjustment plate 11 is fixedly installed together with the frame 1. On the upper side of the front part of the left adjustment plate 11, several first adjustment through holes 15 are provided at intervals left and right. The upper end of the left suspension rod 2 passes through one of the first adjustment through holes 15 and is equipped with an upper limit mechanism. At least one second adjustment through hole 16 is provided at intervals up and down on the outer side of the lower part of the left suspension rod 2. A lower adjustment pin 14 is installed in one of the second adjustment through holes 16. A lower limit plate 12 is sleeved on the outer side of the lower part of the left suspension rod 2 at a position corresponding to the upper side of the lower adjustment pin 14. A left elastic reset member 13 sleeved on the outer side of the left suspension rod 2 is provided between the upper side of the lower limit plate 12 and the lower side of the left adjustment plate 11.

[0026] According to requirements, there is a crossbeam with a rectangular cross-section at the rear of the frame 1. The left adjusting plate 11 is in a shape of '7'. On the upper side of the right part of the left adjusting plate 11, there are two through holes for connection that penetrate up and down and are spaced front and back. The lower side of the left part of the crossbeam and the upper side of the left adjusting plate 11 are fixedly installed together by a U-shaped bolt whose lower end passes through the connection hole and is screwed with a nut. This can reduce the occupied area of the connecting piece on the crossbeam and facilitate the installation of other components on the crossbeam. On the upper side of the front part of the left adjusting plate 11, there are at least two first adjusting through holes 15 that penetrate up and down. In this way, the upper part of the left suspension rod 2 can be installed in the corresponding first adjusting through hole 15 according to actual needs to realize the position adjustment of the left suspension rod 2, thereby adjusting the position of the left film pressing wheel 4. Similarly, the position adjustment of the right suspension rod 3 can be realized, thereby adjusting the position of the right film pressing wheel 5. The left elastic resetting member 13 can be a known compression spring in the prior art, and the lower adjusting pin 14 can be a known split pin in the prior art.

[0027] During the use process, one to six second adjusting through holes 16 are arranged at intervals up and down on the outer side of the lower part of the left suspension rod 2. The lower adjusting pin 14 is installed in one of the second adjusting through holes 16. The lower side of the lower limiting plate 12 abuts against the lower adjusting pin 14 under the action of the left elastic resetting member 13. In this way, the installation position of the lower adjusting pin 14 is adjusted according to the soil conditions, the distance between the upper side of the lower limiting plate 12 and the left adjusting plate 11 is changed, thereby adjusting the compression amount of the left elastic resetting member 13, that is, adjusting the pressure of the left elastic resetting member 13 according to the soil conditions, that is, adjusting the pressure of the left film pressing roller on the film surface. When encountering larger soil clods, grass roots or stones during the film pressing process, the left elastic resetting member 13 and the right elastic adjusting assembly 10 can play a buffering role, and can avoid the phenomenon that the left film pressing wheel 4 and the right film pressing wheel 5 jump up during the rolling film pressing, resulting in incomplete film pressing.

[0028] Embodiment Three: As an optimization of the above embodiment, as shown in the attached Figure 1 、 2 、Figure 3, the upper limiting mechanism includes an upper limiting plate 17 and an upper adjusting pin 18. An installation through hole is provided at the upper end of the left suspension rod 2 corresponding to the position above the left adjusting plate 11, and the upper adjusting pin 18 is installed in the installation through hole. An upper limiting plate 17 is sleeved on the outer side of the upper part of the left suspension rod 2 corresponding to the position between the upper adjusting pin 18 and the left adjusting plate 11.

[0029] According to requirements, the upper adjusting pin 18 is a known technology in the prior art, such as a split pin or a connecting bolt, and the upper limiting plate 17 can be a known flat washer in the prior art. During the use process, through such a setting, after installing the upper adjusting pin 18, the positions of the left film pressing wheel 4 and the right film pressing wheel 5 when rising with the frame 1 can be restricted, preventing the left film pressing wheel 4 and the right film pressing wheel 5 from sagging too much when rising with the frame 1, and also avoiding the left film pressing wheel 4 and the right film pressing wheel 5 from propping up the frame 1 when the frame 1 is lowered.

[0030] Embodiment Four: As an optimization of the above embodiment, as shown in the attached Figure 1, 2 As shown in the figure, a left connecting component is provided on the right side of the left film pressing wheel 4. The left connecting component includes a rotating shaft 19, a mounting sleeve 20, a locking screw 21 and a connecting rod 22. The central part of the right end of the left film pressing wheel 4 is rotatably installed with the rotating shaft 19. A mounting sleeve 20 is sleeved outside the rotating shaft 19. A radially penetrating locking screw hole is provided on the outer side of the rear part of the mounting sleeve 20. A locking screw 21 is screwed in the locking screw hole. A connecting rod 22 is fixedly installed between the front part of the mounting sleeve 20 and the rear part of the left sliding sleeve 7. The lower end of the left hanging rod 2 is hinged and installed on the upper side of the connecting rod 22. A right connecting component 23 with the same structure as the left connecting component and symmetrically arranged is provided on the left side of the right film pressing wheel 5.

[0031] According to requirements, the locking screw hole can also be formed by the inner wall of a locking nut fixedly installed on the outer side of the rear part of the mounting sleeve 20. A locking through hole is provided on the outer side of the mounting sleeve 20 corresponding to the position of the locking screw hole. The locking screw 21 is screwed in the locking nut, and the end of the locking screw 21 abuts against the outer side of the rotating shaft 19. This facilitates the installation of the film pressing wheel and the hanging rod together. The left sliding sleeve 7 and the right sliding sleeve 8 can be roughly adjusted according to the distance between the left hanging rod 2 and the right hanging rod 3, and then the mounting sleeve 20 is moved left and right outside the rotating shaft 19 to finely adjust the distance or position between the left film pressing wheel 4 and the right film pressing wheel 5, making the position adjustment of the left film pressing wheel 4 and the right film pressing wheel 5 more convenient.

[0032] Embodiment 5: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 figure, the limiting component includes a left limiting screw 24 and a right limiting screw 25. Left limiting sleeves 26 are sleeved on the outer sides of the left parts of the sliding rods 6 corresponding to the left and right ends of the left sliding sleeve 7. At least one internally and externally communicating left limiting screw hole is provided at intervals left and right on the outer side of the upper part of each left limiting sleeve 26. A left limiting screw 24 is screwed in each left limiting screw hole. Right limiting sleeves 27 are sleeved on the outer sides of the right parts of the sliding rods 6 corresponding to the left and right ends of the right sliding sleeve 8. At least one internally and externally communicating right limiting screw hole is provided at intervals left and right on the outer side of the upper part of the right sliding sleeve 8. A right limiting screw 25 is screwed in each right limiting screw hole.

[0033] According to requirements, the left limit screw hole can also be formed by the inner wall of the left limit nut fixedly installed on the outer side of the upper part of the left limit sleeve 26. A left limit through hole is provided on the outer side of the upper part of the left limit sleeve 26 corresponding to the position of the left limit screw hole. The left limit screw 24 is screwed into the left limit nut, and the end of the left limit screw 24 abuts against the outer side of the left part of the slide rod 6. The right limit screw hole can also be formed by the inner wall of the right limit nut fixedly installed on the outer side of the upper part of the right limit sleeve 27. A right limit through hole is provided on the outer side of the upper part of the right limit sleeve 27 corresponding to the position of the right limit screw hole. The right limit screw 25 is screwed into the right limit nut, and the end of the right limit screw 25 abuts against the outer side of the right part of the slide rod 6. After adjusting the positions of the left slide sleeve 7 and the right slide sleeve 8 on the slide rod 6 in this way, the left limit sleeves 26 at the left and right ends of the left slide sleeve 7 are respectively tightened against the left slide sleeve 7, and then the left limit screw 24 is tightened. The right limit sleeves 27 at the left and right ends of the right slide sleeve 8 are respectively tightened against the right slide sleeve 8, and then the right limit screw 25 is tightened. In this way, the left slide sleeve 7 and the right slide sleeve 8 can be fixedly installed together with the slide rod 6, which can play a positioning role in the positions of the left film pressing wheel 4 and the right film pressing wheel 5. The left limit screw 24 and the right limit screw 25 can also be respectively screwed on the left slide sleeve 7 and the right slide sleeve 8.

[0034] Embodiment Six: As an optimization of the above embodiment, as shown in the attached Figure 1 , 2 figure, two L-shaped connecting arms 2 are fixedly installed at intervals on the left and right inside the front part of the frame 1 corresponding to the front position of the slide rod 6. The film spreading roller 9 is rotatably installed between the lower parts of the two connecting arms 2. The slide rod 6 is fixedly installed between the rear parts of the two connecting arms 2.

[0035] According to requirements, the horizontal section and the vertical section of the connecting arm 2 are inclined and transitioned. Shaft seats are fixedly installed at the lower ends of the rear parts of the two connecting arms 2. The left end and the right end of the film spreading roller 9 are respectively rotatably installed in the shaft seats at the corresponding positions. Connecting ears are fixedly installed on the rear sides of the two connecting arms 2 corresponding to the upper position of the film spreading roller 9. The left end and the right end of the slide rod 6 are fixedly installed together with the connecting ears at the corresponding positions, which facilitates the disassembly and assembly of the film spreading roller 9 and the slide rod 6.

[0036] The above technical features constitute the embodiments of the present utility model, which have strong adaptability and implementation effects. Non-essential technical features can be increased or decreased according to actual needs to meet the requirements of different situations.

Claims

1. A film spreading and laminating device, characterized in that The frame comprises a frame, a left elastic adjustment component, a right elastic adjustment component, a limit component and a film spreading roller, a left suspension rod and a right suspension rod are arranged at intervals on the left and right rear parts of the frame, a left film pressing wheel is rotatably installed on the lower end of the left suspension rod, and a right film pressing wheel is rotatably installed on the lower end of the right suspension rod, a left elastic adjustment component capable of adjusting the film pressing pressure of the left film pressing wheel is installed between the lower part of the left suspension rod and the frame, a right elastic adjustment component capable of adjusting the film pressing pressure of the right film pressing wheel is installed between the lower part of the right suspension rod and the frame corresponding to the lower part of the frame in front of the left film pressing wheel, a left sliding sleeve slidably installed on the outer side of the left part of the sliding rod is fixedly installed on the front side of the lower end of the left suspension rod, and a right sliding sleeve mounted on the outer side of the right part of the sliding rod is fixedly installed on the front side of the lower end of the right suspension rod, a limit component capable of fixing the left sliding sleeve and the right sliding sleeve on the outer side of the sliding rod is arranged on the outer sides of the left sliding sleeve and the right sliding sleeve, and a film spreading roller is rotatably installed on the lower part of the frame corresponding to the front part of the sliding rod.

2. The film spreading and laminating device according to claim 1, characterized in that The right elastic adjustment component has the same structure as the left elastic adjustment component. The left elastic adjustment component includes a left adjustment plate, an upper limit mechanism, a lower limit plate, a left elastic reset member and a lower adjustment pin. The rear of the left adjustment plate is fixedly installed with the frame. A plurality of first adjustment through holes are provided on the upper left and right sides of the front upper side of the left adjustment plate. The upper end of the left suspension rod is installed with the upper limit mechanism after passing through one of the first adjustment through holes. At least one second adjustment through hole is provided on the outer side of the lower part of the left suspension rod at upper and lower intervals. A lower adjusting pin is installed in one of the second adjustment through holes. A lower limit plate is mounted on the outer side of the lower part of the left suspension rod corresponding to the upper position of the lower adjusting pin. A left elastic reset member mounted on the outer side of the left suspension rod is provided between the upper side of the lower limit plate and the lower side of the left adjustment plate.

3. The film spreading and laminating device according to claim 2, characterized in that The upper limit mechanism includes an upper limit plate and an upper adjustment pin. A mounting through hole is provided at the upper end of the left suspension rod corresponding to the position above the left adjustment plate. The upper adjustment pin is installed in the mounting through hole. The upper limit plate is mounted on the outer side of the upper part of the left suspension rod corresponding to the position between the upper adjustment pin and the top of the left adjustment plate.

4. The film spreading and laminating device according to claim 1, 2 or 3, characterized in that A left connecting assembly is provided on the right side of the left film pressing wheel, and the left connecting assembly includes a rotating shaft, a mounting sleeve, a locking screw and a connecting rod. A rotating shaft is rotatably installed in the center of the right end of the left film pressing wheel, and a mounting sleeve is mounted on the outer side of the rotating shaft. A radially penetrating locking screw hole is provided on the outer side of the rear of the mounting sleeve, and a locking screw is threaded in the locking screw hole. A connecting rod is fixedly installed between the front of the mounting sleeve and the rear of the left sliding sleeve, and the lower end of the left suspension rod is hingedly installed with the upper side of the connecting rod. A right connecting assembly with the same structure as the left connecting assembly and symmetrically arranged is provided on the left side of the right film pressing wheel.

5. The film spreading and laminating device according to claim 1, 2 or 3, characterized in that The limiting assembly includes a left limiting screw and a right limiting screw. The left limiting sleeve is mounted on the outer side of the left part of the sliding rod corresponding to the left and right end positions of the left sliding sleeve. At least one left limiting screw hole connected inside and outside is provided on the left and right sides of the upper outer side of the left limiting sleeve. A left limiting screw is screwed in each left limiting screw hole. The right part of the sliding rod corresponding to the left and right end positions of the right sliding sleeve is mounted on the outer side of the right part of the sliding rod corresponding to the left and right end positions of the right sliding sleeve. At least one right limiting screw hole connected inside and outside is provided on the left and right sides of the upper outer side of the right sliding sleeve. A right limiting screw is screwed in each right limiting screw hole.

6. The film spreading and laminating device according to claim 4, characterized in that The limiting assembly includes a left limiting screw and a right limiting screw. The left limiting sleeve is mounted on the outer side of the left part of the sliding rod corresponding to the left and right end positions of the left sliding sleeve. At least one left limiting screw hole connected inside and outside is provided on the left and right sides of the upper outer side of the left limiting sleeve. A left limiting screw is screwed in each left limiting screw hole. The right part of the sliding rod corresponding to the left and right end positions of the right sliding sleeve is mounted on the outer side of the right part of the sliding rod corresponding to the left and right end positions of the right sliding sleeve. At least one right limiting screw hole connected inside and outside is provided on the left and right sides of the upper outer side of the right sliding sleeve. A right limiting screw is screwed in each right limiting screw hole.

7. The film spreading and laminating device according to claim 1, 2, 3 or 6, characterized in that Two L-shaped connecting arms are fixedly installed at intervals on the left and right sides of the inner front of the frame corresponding to the front position of the slide bar, the film spreading roller is rotatably installed between the lower parts of the two connecting arms, and the slide bar is fixedly installed between the rear parts of the two connecting arms.

8. The film spreading and laminating device according to claim 4, characterized in that Two L-shaped connecting arms are fixedly installed at intervals on the left and right sides of the inner front of the frame corresponding to the front position of the slide bar, the film spreading roller is rotatably installed between the lower parts of the two connecting arms, and the slide bar is fixedly installed between the rear parts of the two connecting arms.

9. The film spreading and laminating device according to claim 5, characterized in that Two L-shaped connecting arms are fixedly installed at intervals on the left and right sides of the inner front of the frame corresponding to the front position of the slide bar, the film spreading roller is rotatably installed between the lower parts of the two connecting arms, and the slide bar is fixedly installed between the rear parts of the two connecting arms.

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