Film pickup device and residual film recovery machine

Abstract

This utility model discloses a film pickup device and a residual film recycling machine. The film pickup device includes: a machine body; two upper film pickup rollers arranged on the machine body in a front-to-back direction; one lower film pickup roller arranged on the machine body, forming a triangular distribution with the two upper film pickup rollers; a film pickup belt wrapped around the upper and lower film pickup rollers to form a triangular belt loop; and film pickup spikes distributed on the film pickup belt. The lower film pickup roller is mounted on a swing frame, the front end of which is hinged to the machine body via a second hinge shaft, and the rear end is provided with a buffer device for downward reset of the swing frame. The film pickup device according to this utility model has relatively good reliability.

Description

Technical Field

[0001] This utility model relates to a film picking device in a residual film recycling machine, and also to a residual film recycling machine adapted with the film picking device. Background Technology

[0002] The film pickup device involved in this invention is one of a series of improvements to the first-generation residual film recycling and baling combined operation machine disclosed in Chinese patent document CN120615351A. It is a further improvement proposed in response to the problems encountered in the experimental use of the residual film recycling and baling combined operation machine involved in Chinese patent document CN120615351A.

[0003] In Chinese patent document CN120615351A, the provided film pickup device includes a film taking-up assembly, which includes three film taking-up rollers arranged in a triangular pattern, thereby making the belt rings mounted on the three film taking-up rollers triangular, with one film taking-up roller at the bottom and two film taking-up rollers at the top. The bottom film taking-up roller determines the lowest point of the film pickup device.

[0004] The take-up roller has several take-up strips arranged axially around it. Rakes are distributed on these strips, which hook and pull at residual film on the ground. As the take-up roller moves the take-up strips, the residual film is gradually lifted up. During this process, at least the rakes will contact the ground to facilitate lifting the residual film. However, the ground conditions vary during take-up; some areas are relatively hard, while others are relatively soft, resulting in significant variations in the impact on the rakes. Furthermore, cotton fields may contain hard objects such as stones, which can easily damage or break the rakes and the bottom take-up roller.

[0005] In contrast, the rake nail is a consumable part, and its damage or failure is acceptable under foreseeable design requirements. The take-up roller, however, should have a longer service life and therefore better adaptability to impacts during film pickup. However, in Chinese patent document CN120615351A, the bottommost take-up roller is easily damaged by direct collisions with the ground or stones on the ground.

[0006] It should be noted that the above background technology is technical information that the inventor has acquired in order to deduce the relevant technical problems or obtained in the process of designing this utility model, and does not mean that the above background technology was already prior art before this utility model application, especially the technical content of the cognition and confirmation of the relevant technical problems. Utility Model Content

[0007] The purpose of this utility model is to provide a film pickup device with relatively good reliability. This utility model also relates to a residual film recycling machine equipped with the film pickup device.

[0008] According to a first aspect of the present invention, a film pickup device is provided, configured in a residual film recycling machine, comprising: Organism; There are two upper film pickup rollers, which are arranged on the machine body in the front-to-back direction; The lower film pickup roller is one in number and is arranged on the machine body, forming a triangular distribution with the two upper film pickup rollers; The film pickup belt is wound around the upper film pickup roller and the lower film pickup roller to form a triangular belt loop; Film-collecting spikes are distributed on the film-collecting belt; The lower film-picking roller is mounted on a swing frame. The front end of the swing frame is hinged to the machine body via a second hinge shaft, and the rear end is equipped with a buffer device for the swing frame to return to its downward position.

[0009] Optionally, the buffer device is a spring guide post, wherein one end of the spring guide post is hinged to the swing frame and the other end is hinged to the machine body, and the hinge point on the machine body is higher than the hinge point on the swing frame.

[0010] Optionally, the machine body is provided with a front conforming roller in front of the lower film picking roller and a rear conforming roller behind the lower film picking roller, so that when the residual film recycling machine is on a horizontal ground, the lower film picking roller is separated from the ground by a predetermined distance.

[0011] Optionally, the predetermined distance is 37mm to 49mm; The length of the corresponding film-collecting spikes is 65mm~80mm.

[0012] Optionally, the lower apex angle of the triangular band is 27°~37°; Correspondingly, the angle between the front edge of the triangular band and the vertical plane is 5°~7°, and it is tilted upward and backward accordingly.

[0013] Optionally, the angle between the upper edge of the triangular band and the horizontal plane is 17° to 23°, and gradually decreases from front to back.

[0014] Optionally, it also includes a tensioning device for tensioning the triangular belt loop from the front or rear side of a belt edge, which is either the front or rear belt edge.

[0015] According to a second aspect of the present invention, a residual film recycling machine is provided, including the film picking device described in the first aspect of the present invention.

[0016] Optionally, a side film cutter is provided on each side of the front of the machine to cut off the residual film on the ground.

[0017] Optionally, the edge membrane blade is at least a downwardly and inwardly extending arc-shaped blade at its lower part; The angle between the tangent at the lower end of the curved blade and the horizontal plane is no greater than 12° and no less than 3°.

[0018] The film pickup device according to the embodiments of the present invention has a film pickup mechanism with three film pickup rollers, two of which are upper film pickup rollers and the remaining one is a lower film pickup roller. The three film pickup rollers form a triangular structure. The lower film pickup roller is subjected to the greatest impact when picking up film and may directly collide with the ground. Therefore, in the embodiments of the present invention, the lower film pickup roller is configured as a movable film pickup roller. Specifically, the lower film pickup roller is mounted on a swing frame. One end of the swing frame is hinged to the machine body, and the other end is mounted through a downward reset buffer device. Thus, when the lower film pickup roller is impacted, the swing frame will swing at the hinged end. After the collision disappears, it will reset under the reset force of the buffer device, thereby reducing the impact of rigid collision and effectively protecting the lower film pickup roller and the film pickup belt that runs to the lower film pickup roller. Therefore, the overall reliability of use is relatively good. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the residual film recycling machine in the first embodiment.

[0020] Figure 2 This is a schematic diagram of the main structure of the residual film recycling machine in the second embodiment.

[0021] Figure 3 for Figure 1 Enlarged view of Part I.

[0022] In the diagram: 1. Traction frame, 2. Gearbox, 3. Machine body, 4. Lubrication pump, 5. First row of debris auger, 6. Dust removal fan, 7. Front stripping roller, 8. Front upper film pickup roller, 9. Film pickup belt, 10. Film pickup spikes, 11. Rear stripping roller, 12. Rear upper film pickup roller, 13. Conveying and packing assembly, 14. Support rear wheel, 15. Rear contouring roller, 16. Tensioning device, 17. Third debris removal system, 18. Lower film pickup roller, 19. Second row of debris auger, 20. Front contouring roller, 21. Striking device, 22. Side film knife, 23. Fourth row of debris auger, 24. Swing frame, 25. Guide column, 26. Buffer spring, 27. Second hinge shaft. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that "body 3" is a general term, primarily used in the embodiments of this utility model as a mounting base for other components on the residual film recycling machine. Furthermore, on the residual film recycling machine, there exists a generally constitutive main body, including portions for mounting components such as the striking rod device 21 and the film picking device. In other words, the body 3 can also refer to, for example, the basic structure of the residual film recycling machine. In the mechanical field, installation includes direct installation and indirect installation. Indirect installation includes, but is not limited to, installation on the body via other components, and the installation methods via other components include dynamic connections and static connections.

[0024] In some embodiments of this invention, the traction frame 1 is used to tow a locomotive, such as a tractor head, for example, a residual film recycling machine, and the power for the residual film recycling machine can come from, for example, the tractor head. In some embodiments, a separate power unit can be provided for the residual film recycling machine. In the embodiments of this invention, the basic structure of the film-collecting device and the parts related to the film-collecting device are described in detail, while the remaining parts are not described in detail.

[0025] Regarding the introduction of power, as mentioned earlier, it can come from a locomotive or trailer, or from a power unit installed on the residual film recycling machine, such as the first drive mechanism for the cutter shaft of the lever device 21. Under the condition that the motion form of the cutter shaft is determined, the drive of the cutter shaft can be achieved without creative effort based on existing technology. For example, if the cutter shaft adopts a simple rotary motion, it can be directly driven by an electric motor, pneumatic motor, or hydraulic motor, or the power can be connected from the traction equipment such as the trailer by a drive shaft assembly set on the traction unit.

[0026] Similarly, for Figure 1 The three debris removal augers and film pickup device in the machine can be driven by a locomotive or trailer, or by a power unit installed on the residual film recycling machine. Figure 2 The middle section is equipped with two debris-removing augers, resulting in a relatively compact structure. The fourth debris-removing auger 23 is used to remove the straw crushed by the straw-beating device 21, and also to remove mud lumps and other debris thrown forward during the process of the film-picking device lifting the residual film. Therefore, in the embodiments of this utility model, the first to fourth augers are only used to distinguish different technical features and do not have a specific limiting function.

[0027] In the field of vehicle technology, a defined front and rear are defined. In this embodiment of the present invention, the end where the traction frame 1 is located is the front end, and the end where the conveying and packaging assembly 13 of the waste removal and residual film recycling section is located is the rear end. Under these conditions, the front and rear are defined in this embodiment of the present invention. Furthermore, in the field of vehicle technology, under the condition that the front and rear are defined, the left and right are also defined. However, it should be noted that in this embodiment of the present invention, terms such as up, down, left, right, inner, outer, front, rear, etc., and similar expressions are for illustrative and explanatory purposes only, and are intended not to mislead those skilled in the art.

[0028] Similarly, statements that are mutually explanatory, such as vertical or horizontal, are also for the purpose of explanation or clarification.

[0029] In addition, in the field of mechanics, it should be known that the front-to-back direction is also called longitudinal, head-to-tail, or length direction, while the left-to-right direction is also called transverse, width direction, or width direction.

[0030] In addition, to facilitate the description of the relationship between one component or component and another component or component shown in the accompanying drawings, spatially relative terms such as "lower," "upper," and similar terms may be used in embodiments of this invention. It should be understood that the spatially relative terms are intended to cover different orientations of the device during use and operation, in addition to those depicted in the accompanying drawings.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0032] Furthermore, as a special note, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] It should be understood that in the field of mechanics, standard geometric terms are typically used to describe approximate mechanical structures, without implying that the mechanical mechanism possesses the exact geometric features corresponding to those terms. For example, a rectangular plate is actually described as a three-dimensional structure based on the characteristics of a planar figure. In the field of mechanics, using a specific explicit feature of a component to describe it is a common descriptive method, but this does not mean that the component necessarily contains the exact geometric shape corresponding to that explicit feature.

[0034] The basic structure of the residual film recycling machine is described below. The machine is typically towed by a trailer, locomotive, or other traction equipment, similar to a semi-trailer. It usually has a rear wheel 14 at the rear end and a towing frame 1 at the front end for connection to the trailer. The towing frame 1 can be equipped with, for example, a universal coupling and a drive shaft to transmit power from, for example, the trailer to the corresponding components of the residual film recycling machine, such as the foremost striking device 21. In some embodiments, a drive wheel can be driven via the universal coupling and drive shaft. The drive wheel is connected to a sprocket or pulley on the striking blade shaft of the striking device 21 via, for example, a chain drive or belt drive mechanism, to drive the striking device 21.

[0035] For other components that require driving, the same applies, and they will not be listed here one by one.

[0036] Figure 1 The example structure and Figure 2 Compared to the illustrated structure, this one has an additional auger for removing debris. The following mainly describes this. Figure 1 The basic components of the example structure, for Figure 2 The structure shown in the example is briefly described. Figure 1 In the middle, a first row of miscellaneous augers 5 is provided on the rear side of the punching device 21, a guide plate assembly is provided between the first row of miscellaneous augers 5 and the punching device 21, and a front conforming roller 20 is located on the lower side of the guide plate assembly. The front conforming roller 20 is used to ensure that the punching device 21 and the film picking device on the rear side are at the appropriate height to avoid these components from colliding with the ground.

[0037] Similarly, a rear contour roller 15 is also provided at the rear of the residual film recycling machine. The front and rear contour rollers together keep the striking rod device 21 and the film picking device at a suitable height.

[0038] Furthermore, in Figure 1 In the illustrated structure, the first row of miscellaneous augers 5 and the second row of miscellaneous augers 19 are isolated from each other, while... Figure 2 In the illustrated structure, the two waste removal augers are integrated into one waste removal auger, namely the fourth waste removal auger 23, which can effectively shorten the length of the residual film recycling machine in the front and rear directions, thus making the structure more compact and the operation more flexible.

[0039] Figure 1 The rear side of the second row of miscellaneous auger 19 and Figure 2 The rear side of the fourth row of auger 23 is a film-picking device, whose basic function is to pick up the residual film on the ground and then pull it upwards, using methods such as... Figure 1 The front stripping roller 7 and the rear stripping roller 11 shown peel off the residual film from the film picking spikes 10 on the film picking belt 9, and then the conveying and packing assembly located behind the film picking device gradually gathers and packs the scattered residual film.

[0040] Since the residual film is pressed down by soil clods on the ground, it will encounter certain resistance when the film-picking spikes 10 hook and lift the residual film. In order to reduce the impact of this resistance, a pair of side film blades 22 are provided at the front of the machine body 3. The two side film blades 22 are fixed on the left and right sides of the front of the machine body 3 to cut the residual film, thereby reducing the resistance when the residual film is hooked and lifted by, for example, the film-picking spikes 10.

[0041] Furthermore, the edge knife 22 can be either a straight knife or a curved knife. When using a curved knife, there are two forms: one is curved in the front-to-back direction, which can be a downward and backward curve, making it less prone to blade breakage; the other is curved downward and inward, which is also less prone to blade breakage.

[0042] The inwardly curved edge blade 22 can be referred to as an arc blade, wherein the angle between the tangent at the lower end of the arc blade and the horizontal plane is not greater than 12° and not less than 3°.

[0043] exist Figure 1 and Figure 2 In the illustrated structure, there are three film pickup rollers. Any one of the three film pickup rollers can be used as the driving roller. It is preferred to use one of the two upper film pickup rollers as the driving roller. In the embodiment of this utility model, the lower film pickup roller 18 is equivalent to being set in a floating manner. Its position will fluctuate and affect the setting of the transmission part. The two upper film pickup rollers are relatively fixed in position, which makes it easy to arrange the corresponding transmission parts, such as the transmission belt.

[0044] exist Figure 1 and Figure 2 In the illustrated structure, the two upper film pickup rollers are the front upper film pickup roller 8 and the rear upper film pickup roller 12 shown in the figure. The two upper film pickup rollers are mounted on the machine body by bearings.

[0045] There is only one lower film pickup roller 18. The lower film pickup roller 18 is arranged on the machine body in a floating manner and forms a triangular distribution with the two upper film pickup rollers. This makes the film pickup belt 9 wrapped around the three film pickup rollers have a rounded triangular structure, which is simply referred to as a triangular belt.

[0046] It should be noted that the film pickup belt 9 is not a wide belt, but a relatively narrow belt. In other words, a group of several film pickup belts 9 are arranged laterally on the film pickup roller, with gaps between the film pickup belts 9. The number of film pickup belts 9 is 20 to 30, and the film pickup spikes 10 are evenly distributed on the film pickup belts 9 along the axial direction of the belt loop.

[0047] The gap of the film pickup belt 9 is approximately equal to or slightly wider than its bandwidth.

[0048] If the lower film pickup roller 18 is configured to float, it will float upwards when it collides with the ground, thus avoiding a rigid collision. Simultaneously, a buffer device can be provided in its floating direction for downward reset, so that the lower film pickup roller 18 can automatically reset downwards after the collision.

[0049] Accordingly, the lower film pickup roller 18 is mounted on a swing frame 24, one end of which is hinged to the machine body via a second hinge shaft, and the other end is provided with a buffer device for the swing frame 24 to return to its downward position.

[0050] See Figure 3 In the illustrated structure, when the residual film recycling machine moves forward, if the lower film-picking roller 18 collides with the ground, it will typically generate a backward force, which usually includes an upward component. The collision with the ground is more of a scraping motion. Therefore, in Figure 3 In the illustrated structure, the front end of the swing frame 24 is hinged to the machine body 3 via a first hinge shaft. When the lower film pickup roller 18 rubs against the ground, for example, the swing frame 24 will... Figure 3 In the illustrated structure, counterclockwise rotation results in a smaller subframe torque on the film pickup device, making it easier to effectively protect the film pickup device.

[0051] Furthermore, a guide post 25 is mounted at the rear end of the pendulum frame 24 via a second hinge pin 27, and the upper end of the guide post 25 is hinged to the body 3. That is, the pendulum frame 24... Figure 3 The rear end is mounted on the body 3 by means of suspension.

[0052] A buffer spring 26 is fitted on the guide pillar 25. The spring guide pillar can be made by purchasing commercially available spring guide pillars directly, or the buffer spring 26 can be adapted according to the vehicle model.

[0053] Furthermore, the installation position of the first hinge shaft on the body 3 is higher than that of the second hinge shaft 27 on the body 3, so that the swing frame 24 is in an inclined arrangement with the front higher than the back in the initial state, thus having better response performance to the upward and backward forces generated by the collision.

[0054] As mentioned earlier, the use of the front conforming roller 20 and the rear conforming roller 15 can further protect the striking rod device 21 and the film picking device. It should be understood that both the front conforming roller 20 and the rear conforming roller 15 provide auxiliary support within the predetermined transverse width of the residual film recycling machine, unlike... Figure 1 and Figure 2 The supporting rear wheel 14 shown typically has a pair of rear wheels, one on each side of the machine body 3. It cannot help the machine body 3 overcome obstacles such as rocks, and may damage devices such as the battering device 21 and the film-collecting device, while also causing the bottom to sag. The two contour rollers are more adaptable to uneven terrain, although they do not provide support in most cases.

[0055] Accordingly, as a reference, when the residual film recycling machine is on a level surface, the two contour rollers can ensure that the lower film pickup roller 18 is separated from the ground by a predetermined distance.

[0056] exist Figure 1 and Figure 2 As can be seen in the illustrated structure, the two conforming rollers need to protect both the striking rod device 21 and the film pickup device. The predetermined distance should not be too large or too small. If it is too large, the film pickup spikes 10 may not work properly. If it is too small, it may not provide adequate protection for the striking rod device 21 and the film pickup device. After long-term and experimental use in various plots, the predetermined distance is 37mm~49mm, preferably 42mm, which can effectively balance protection and ensure the normal operation of the film pickup spikes 10.

[0057] Accordingly, the film-collecting spike 10 needs to have a certain length, with the length of the film-collecting spike 10 being 65mm~80mm, preferably 72mm.

[0058] To reduce interference, the lower apex angle of the triangular band is 27°~37°. Figure 1 and Figure 2 As can be seen in the illustrated structure, the triangular band has a pointed bottom, and currently only one film-picking spike 10 is in the picking-up state, which can effectively avoid interference with field materials.

[0059] Correspondingly, the angle between the front edge of the triangular band and the vertical plane is 5°~7°, and it is tilted upward and backward accordingly.

[0060] exist Figure 1 and Figure 2 In the illustrated structure, the angle between the upper edge of the triangular band and the horizontal plane is 17°~23°, and gradually decreases from front to back, which is beneficial for unloading and recycling of residual film.

[0061] In a preferred embodiment, considering that the lower film pickup roller 18 is in a floating state, if it is rubbed by, for example, the ground, the tension of the film pickup belt 9 will change due to the floating. In order to avoid derailment, the film pickup device also includes a tensioning device 16 for tensioning the triangular belt loop from the front or rear side of a belt edge. The belt edge can be the front belt edge or the rear belt edge. In a preferred embodiment, the tensioning device 16 is installed on the rear belt edge.

[0062] The tensioning device 16 is preferably a swing-frame type tensioning device, which can better adapt to the tightness of the belt loop.

[0063] The above description is illustrative in conjunction with the accompanying drawings and is not intended to limit the scope of this utility model. Within the concept of this utility model, the above embodiments or different embodiments can be combined without conflict. Although the utility model has been described in detail in the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A film pickup device, configured in a residual film recycling machine, characterized in that, include: Organism; There are two upper film pickup rollers, which are arranged on the machine body in the front-to-back direction; The lower film pickup roller is one in number and is arranged on the machine body, forming a triangular distribution with the two upper film pickup rollers; The film pickup belt is wound around the upper film pickup roller and the lower film pickup roller to form a triangular belt loop; Film-collecting spikes are distributed on the film-collecting belt; The lower film-picking roller is mounted on a swing frame. The front end of the swing frame is hinged to the machine body via a second hinge shaft, and the rear end is equipped with a buffer device for the swing frame to return to its downward position.

2. The film pickup device according to claim 1, characterized in that, The buffer device is a spring guide post, wherein one end of the spring guide post is hinged to the swing frame and the other end is hinged to the body, and the hinge point on the body is higher than the hinge point on the swing frame.

3. The film pickup device according to claim 1, characterized in that, The machine body has a front conforming roller in front of the lower film picking roller and a rear conforming roller behind the lower film picking roller, so that when the residual film recycling machine is on a horizontal ground, the lower film picking roller is separated from the ground by a predetermined distance.

4. The film pickup device according to claim 3, characterized in that, The predetermined distance is 37mm~49mm; The length of the corresponding film-collecting spikes is 65mm~80mm.

5. The film pickup device according to claim 1, characterized in that, The lower apex angle of the triangular band is 27°~37°; Correspondingly, the angle between the front edge of the triangular band and the vertical plane is 5°~7°, and it is tilted upward and backward accordingly.

6. The film pickup device according to claim 1, characterized in that, The angle between the upper edge of the triangular band and the horizontal plane is 17° to 23°, and gradually decreases from front to back.

7. The film pickup device according to claim 1 or 6, characterized in that, It also includes a tensioning device for tensioning the triangular belt loop from the front or rear side of a belt edge, which is either the front or rear belt edge.

8. A residual film recycling machine, characterized in that, Includes the film pickup device according to any one of claims 1 to 7.

9. The residual film recycling machine according to claim 8, characterized in that, At the front of the machine, there is a side membrane knife on each side to cut off the residual membrane on the ground.

10. The residual film recycling machine according to claim 9, characterized in that, The edge membrane knife is at least a downward and inwardly extending arc-shaped knife at its lower part; The angle between the tangent at the lower end of the curved blade and the horizontal plane is no greater than 12° and no less than 3°.

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