Separated net cutter return structure and bundling machine
By adopting a separate mesh cutting knife return structure in the double-storey baler, the opening of the rear compartment pushes the push rod spacer into contact with the push rod, the problem that the cutter cannot return to the position is solved, and the working efficiency and reliability of the baler are improved.
Patent Information
- Application Number
- CN202422368050.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-26
AI Technical Summary
In a double-storey baler, the problem of the cutting knife being unable to return to position leads to a reduced baling efficiency.
The split mesh cutting knife is adopted to reposition the positioning structure, and the detachable design of the push rod spacer and the push rod on the mesh cutting bracket on the rear compartment rotating seat is used to realize the positioning of the cutting knife after the front compartment is closed by the opening of the rear compartment.
It realizes that the cutting knife can automatically return to position after cutting, which improves the working efficiency and reliability of the baler.
Smart Images
Figure CN223059430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural baling machines, in particular to a separated net cutting knife return structure and a baling machine. Background Art
[0002] In a baling machine, a net cutting knife is a very crucial component, which is used to cut the net ropes for bundling the baling machine. After the forage is compressed into a bale and the net winding is completed, the net ropes bundling the hay bale are precisely cut by the net cutting knife to ensure that the round bale is neat and does not come loose.
[0003] After the traditional baling machine fills the bin with forage, it needs to stop for net winding, then discharge the hay bale and continue to move for operation. The return movement of the cutting knife of the net winding system depends on the pusher rod that is pushed by the flipping of the bin body during the hay discharging process to make the cutting knife return to its position.
[0004] However, in the related art, in order to improve the baling efficiency, the traditional single-bin baling is changed to double-bin baling. The front bin makes small hay bales. After the front bin is full, the bin body flips to transfer the small hay bales to the rear bin. The main body of the net winding mechanism of this kind of baling machine is basically the same as that of the single-bin one, but the net winding mechanism needs to flip along with the front bin. Therefore, the existing structural form of pushing the cutting knife to return to its position by the flipping of the rear bin cannot be used. Content of the Utility Model
[0005] The utility model provides a separated net cutting knife return structure and a baling machine to solve the problem that the cutting knife cannot return to its position after changing from a single bin to a double bin in the prior art.
[0006] The utility model discloses a separated net cutting knife return structure, including: a net cutting support fixedly connected to the front bin, the net cutting support is provided with a moving shaft that can reciprocate on the net cutting support, a cutting knife is arranged on the moving shaft for cutting the net rope, a hook is also hinged on the moving shaft, and a limiting shaft for fixing and unhooking the hook is also arranged in the net cutting support; a pusher rod, one end of which is rotatably connected to the cutting knife, and the other end is arranged towards the rear bin; a pusher rod spacer fixedly connected to the rear bin rotating seat and following the rotation of the rear bin; wherein, the movement track of the pusher rod spacer faces the end of the pusher rod away from the moving shaft, and the pusher rod spacer is configured to be separated from the pusher rod at the initial position, and the pusher rod spacer contacts the pusher rod and pushes the hook to return to its position during the process of opening the rear bin.
[0007] Further, the net cutting support has a movement track for the moving shaft, the moving shaft is relatively slidably arranged in the movement track, and the cutting knife completes the cutting of the net rope during the sliding process.
[0008] Further, the movement track is an arc-shaped hole, and one end of the cutting knife is movably connected in the arc-shaped hole.
[0009] Further, the push rod is also provided with a limiting long hole arranged obliquely, and the frame is also provided with a guiding spacer sleeve passing through the limiting long hole.
[0010] Further, the limiting long hole is configured such that when the moving shaft returns to its position, the guiding spacer sleeve is at one end of the limiting long hole, and when the moving shaft is at the other end of the movement track, the guiding spacer sleeve is at the other end of the limiting long hole.
[0011] Further, one end of the push rod away from the cutting knife has a pushing portion for contacting the push rod spacer sleeve.
[0012] Further, the pushing portion is in a fish-tail shape and has a notch formed by the intersection of two inclined side walls, and the notch is provided with a rounded corner at the intersection of the two inclined side walls.
[0013] Further, the push rod spacer sleeve is detachably fixed on the rear bin rotating seat and is rotatably arranged relative to the rear bin rotating seat.
[0014] Further, the push rod spacer sleeve includes a cylindrical section close to the rear bin rotating seat and a conical section away from the rear bin rotating seat. The thickness of the cylindrical section matches the thickness of the push rod, and the diameter of the conical section increases gradually in the direction away from the cylindrical section.
[0015] The present utility model also discloses a baler, including: the separable cutting net knife return structure as described in any one of the above.
[0016] The separable cutting net knife return structure and the baler provided by the present utility model can achieve the following technical effects:
[0017] Through the separable structural design of the push rod spacer sleeve arranged on the rear bin rotating seat and the push rod on the cutting net support, the cutting knife and the push rod can follow the opening and closing of the front bin. And after the front bin is closed, the contact and pushing of the spacer sleeve and the push rod are realized through the opening of the rear bin, so that the cutting knife can be returned by means of the opening of the rear bin after cutting, thus solving the problem of the cutting knife return in the prior art where the front and rear bins rotate independently but still use the push rod type return method.
[0018] The above general description and the following description are only exemplary and explanatory and are not used to limit the present utility model. Description of the Drawings
[0019] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and among them:
[0020] Figure 1It is a schematic diagram of the return action of a split net cutting knife return structure in an embodiment of the present utility model;
[0021] Figure 2 It is a schematic diagram of the split net cutting knife return structure in a separated state in an embodiment of the present utility model;
[0022] Figure 3 It is a schematic diagram of the split net cutting knife return structure in a returned state in an embodiment of the present utility model;
[0023] Figure 4 It is in an embodiment of the present utility model Figure 3 The A-A sectional view;
[0024] Figure 5 It is a schematic diagram of the push rod in an embodiment of the present utility model;
[0025] Figure 6 It is a schematic diagram of the push rod spacer sleeve in an embodiment of the present utility model;
[0026] Figure 7 It is an axial sectional view of the push rod spacer sleeve in an embodiment of the present utility model.
[0027] Reference numerals:
[0028] d1, net cutting bracket; d11, moving shaft; d111, hook; d112, cutting knife; d113, limiting shaft; d12, movement track; d2, push rod; d21, limiting long hole; d22, pushing part; d3, push rod spacer sleeve; d31, cylindrical section; d32, conical section; d4, guiding spacer sleeve. Detailed implementation manners
[0029] In order to be able to understand the features and technical content of the embodiments of the present utility model in more detail, the implementation of the embodiments of the present utility model will be described in detail below with reference to the drawings. The attached drawings are only for reference and explanation, and are not used to limit the embodiments of the present utility model. In the following technical description, for the sake of convenience of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.
[0030] The terms "first" in the description and claims of the embodiments of the present utility model and the above drawings
[0031] Terms such as "second" are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that data used in this way can be interchanged under appropriate circumstances so as to implement the embodiments of the present utility model described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0032] In the embodiments of the present utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present utility model and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0033] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0034] Unless otherwise specified, the term "plurality" means two or more, and "multiple groups" means two or more groups.
[0035] It should be noted that, without conflict, the embodiments in the embodiments of the present utility model and the features in the embodiments can be combined with each other.
[0036] As Figures 1 to 7 shown, the present utility model discloses a return structure for a split wire cutting knife, including a wire cutting bracket d1, a push rod d2, and a push rod spacer d3. Among them, as Figure 1 shown in
[0037] The wire cutting bracket d1 is fixedly connected to the front bin. The wire cutting bracket d1 has a moving shaft d11 that can reciprocate on the wire cutting bracket d1. A cutting knife d112 is arranged on the moving shaft d11 for cutting the rope net; a hook d111 is also hinged on the moving shaft d11. The wire cutting bracket d1 also has a limiting shaft d113 for fixing and unhooking the hook d111. In the embodiments of the present utility model, as Figure 1As shown, the cutting edge of the cutter d112 faces left and downward. During the process of the moving shaft d11 moving from top to bottom, the cutter d112 cuts off the rope net. Regarding the limiting shaft d113, it can show the fixing and unhooking of the hook d111 by rotating, that is, as Figure 1 shown, the outer wall of the hook d111 is in tangential contact with the limiting shaft d113.
[0038] When the limiting shaft d113 receives the thrust of the push rod d2, the outer wall of the hook d111 abuts against the limiting shaft d113 and moves upward until the hook hooks on the limiting shaft d113 and realizes the limiting fixation. When the hook d111 needs to be unhooked, when the limiting shaft d113 rotates counterclockwise, the hook d111 is unhooked and falls together with the cutter d112. Of course, it should be noted here that in the embodiment of the present invention, the main thrust for the hook d111 to return is from the push of the push rod d2, which will be introduced in detail below;
[0039] One end of the push rod d2 is rotatably connected to the cutter d112, and the other end faces the rear bin. In the embodiment of the present invention, the push rod d2 drives the movement of the cutter d112, that is, as Figure 1 shown, the limiting shaft d113 rotates counterclockwise to unhook the hook d111 from the limiting shaft d113. The cutter d112 falls by its own gravity to cut off the rope net, and at the same time drives the push rod d2 to move toward the left. When the push rod d2 moves toward the right, it pushes the hook d111 to return. The push rod spacer d3 is fixedly connected to the rear bin rotating seat and rotates with the rear bin. As Figure 1 shown by the dotted line in the figure, it is the movement trajectory schematic diagram of the push rod spacer d3 fixedly connected to the rear bin rotating seat. Figure 1 The double-dot dash line in the figure represents the future movement position of the push rod d2. Specifically, the movement trajectory of the push rod spacer d3 faces the end of the push rod d2 away from the cutter d112. The push rod spacer d3 is configured to be separated from the push rod d2 at the initial position. During the process of opening the rear bin, the push rod spacer d3 contacts the push rod d2 and pushes the cutter d112 to return. That is, on the rear bin rotating seat, before the rear bin is opened, the push rod spacer d3 is separated from the push rod d2. When the rear bin rotates clockwise to open, the push rod spacer d3 gradually approaches the push rod d2 until it contacts the push rod d2, and then pushes the push rod d2 to move toward the right, so that the push rod d2 pushes the cutter d112 to return.
[0040] In the above embodiments, through the separable structural design of the push rod spacer sleeve d3 provided on the rear bin rotating seat and the push rod d2 on the net cutting bracket d1, the cutting knife d112 and the push rod d2 can follow the opening and closing of the front bin. And after the front bin is closed, the contact and pushing of the spacer sleeve and the push rod d2 are realized through the opening of the rear bin, so that the cutting knife d112 can be retracted by means of the opening of the rear bin after the cutting is completed, thus solving the problem of the cutting knife retraction in the prior art where the front and rear bins rotate independently but still use the push rod d2 type retraction method.
[0041] Optionally, as Figure 2 shown in, the net cutting bracket d1 has a movement track d12 for the moving shaft d11. The moving shaft d11 is slidably arranged relative to the movement track d12, and the net rope is cut during the sliding process. Of course, it should be noted here that the movement track d12 has various forms, for example, it can be realized by setting a slide rail and other means. In some embodiments of the present invention, as Figure 2 shown in, the movement track d12 is an arc-shaped hole, and one end of the moving shaft d11 is movably connected in the arc-shaped hole. The cutting knife d112 slides in the arc-shaped hole, and the specific sliding form can adopt the form of a rotating shaft or
[0042] other structural forms.
[0043] Optionally, as Figure 2 and Figure 3 shown in, in order to avoid excessive swinging of the push rod d2, in the embodiments of the present invention, the push rod d2 also has an inclined limiting long hole d21, and the frame also has a guiding spacer sleeve d4 passing through the limiting long hole d21. Specifically, the limiting long hole d21 is configured such that when the moving shaft d11 returns, the guiding spacer sleeve d4 is at one end of the limiting long hole d21, and when the moving shaft d11 is at the other end of the movement track d12, the guiding spacer sleeve d4 is at the other end of the limiting long hole d21. As Figure 2 shown in, at this time, the cutting knife d112 drops, and the guiding spacer sleeve d4 is at the rightmost end of the limiting long hole d21. As Figure 3 shown in, when the cutting knife returns, the guiding spacer sleeve d4 is at the leftmost end of the limiting long hole d21; through the setting of this structural form, not only the push rod d2 is supported to prevent excessive swinging of the push rod d2, but also the cutting knife d112 can be protected.
[0044] Optionally, as Figure 5As shown in [reference], regarding the specific structure of the push rod d2, one end of the push rod d2 away from the cutting knife d112 has a pushing portion d22, and the pushing portion d22 is used to contact the push rod spacer d3. Specifically, the pushing portion d22 is in a fish-tail shape and has a notch formed by the intersection of two inclined side walls. The notch is provided with a rounded corner at the intersection of the two inclined side walls. Through the fish-tail shape structure setting, it can play a guiding role for the push rod spacer d3, so that the push rod spacer d3 can just contact and apply force at the notch during the moving process; through the rounded corner setting, stress concentration can be avoided and the reliability of pushing the push rod d2 can be improved.
[0045] Optionally, as Figure 6 and Figure 7 shown in [reference], the push rod spacer d3 is detachably fixed on the rear bin rotating seat and can be rotatably arranged relative to the rear bin rotating seat. Specifically, the push rod spacer d3 includes a cylindrical section d31 close to the rear bin rotating seat and a conical section d32 away from the rear bin rotating seat. The thickness of the cylindrical section d31 matches the thickness of the push rod d2, and the diameter of the conical section d32 increases gradually in the direction away from the cylindrical section d31. Through this structural form setting, the conical section d32 can snap the push rod d2 into the cylindrical section d31 in contact with the rear bin rotating seat, thereby avoiding the coplanar deviation of the push rod cutter and the notch of the push rod d2 caused by the swing of the push rod d2 and ensuring the reliability of applying force to the push rod d2.
[0046] In an embodiment of the present invention, a baler is further provided, including the above-mentioned split cutting net knife return structure.
[0047] Application scenario of an exemplary embodiment:
[0048] As Figures 1 to 7As shown, the hook d111 is hooked on the limit shaft d113. During the baling operation, the forage first enters the rear bin for forming. After reaching the set density, the electromagnetic clutch operates to drive the net winding mechanism to perform the net winding operation. At the same time, the limit shaft d113 starts to rotate counterclockwise. When the net winding operation is completed, the hook d111 is unhooked and drops together with the cutting knife d112 to cut the rope net. The push rod d2 also moves towards the left accordingly to complete the baling of the bale. The rear bin is opened to release the bale. During the opening process of the rear bin, the push rod spacer d3 contacts the notch of the pushing part d22 of the push rod d2. As the rear bin continues to open, the push rod spacer d3 pushes the push rod d2 to push the cutting knife d112 to the initial position, realizing the return of the cutting knife d112, and the hook d111 is re-hooked on the limit shaft d113. During the bale discharging process of the rear bin, the lower bin door closes the channel between the front bin and the rear bin, and the forage continuously enters the front bin for pre-forming. When the bale discharging of the rear bin is completed and the rear bin is closed, the lower bin door opens the channel between the front bin and the rear bin, and the forage continuously enters the rear bin. At the same time, the front bin is opened and the pre-formed forage is transferred to the rear bin, and the front bin is closed. At this time, the net cutting bracket d1 also rotates and returns following the opening and closing of the front bin.
[0049] The above description and the drawings fully illustrate the embodiments of the present invention, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present invention are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.
Claims
1. A return structure for a separable net cutting knife, characterized in that, Comprising: A net cutting bracket (d1) fixedly connected to the front bin, on which there is a moving shaft (d11) that can reciprocate on the net cutting bracket (d1). A cutting knife (d112) is arranged on the moving shaft (d11) for cutting the rope net. A hook (d111) is also hinged on the moving shaft (d11), and a limiting shaft (d113) for fixing and unhooking the hook (d111) is also provided inside the net cutting bracket (d1); A push rod (d2), one end of which is rotatably connected to the cutting knife (d112), and the other end is arranged towards the rear bin; A push rod spacer (d3) fixedly connected to the rear bin rotating seat and following the rear bin to rotate; Wherein, the movement track of the push rod spacer (d3) faces the end of the push rod (d2) away from the moving shaft (d11). The push rod spacer (d3) is configured to be separated from the push rod (d2) at the initial position, and during the opening process of the rear bin, the push rod spacer (d3) contacts the push rod (d2) and pushes the hook (d111) back to its position.
2. The separable net cutting knife return structure according to claim 1, characterized in that The net cutting bracket (d1) has a movement track (d12) of the moving shaft (d11). The moving shaft (d11) is slidably arranged relative to the movement track (d12), and during the sliding process, the cutting knife (d112) completes the cutting of the net rope.
3. The separable net cutting knife return structure according to claim 2, characterized in that The movement track (d12) is an arc-shaped hole, and one end of the moving shaft (d11) is movably connected in the arc-shaped hole.
4. The separable net cutting knife return structure according to claim 3, characterized in that The push rod (d2) also has an inclined limiting long hole (d21), and a guiding spacer (d4) passing through the limiting long hole (d21) is also provided on the frame.
5. The separable net cutting knife return structure according to claim 4, characterized in that The limiting long hole (d21) is configured such that when the moving shaft (d11) returns to its position, the guiding spacer (d4) is at one end of the limiting long hole (d21), and when the moving shaft (d11) is at the other end of the movement track (d12), the guiding spacer (d4) is at the other end of the limiting long hole (d21).
6. The separable net cutting knife return structure according to claim 1, characterized in that The end of the push rod (d2) away from the cutting knife (d112) has a pushing portion (d22), and the pushing portion (d22) is used to contact the push rod spacer (d3).
7. The separable net cutting knife return structure according to claim 6, characterized in that The pushing portion (d22) is in a fish-tail shape, having a notch formed by the intersection of two inclined side walls, and the notch is provided with a rounded corner at the intersection of the two inclined side walls.
8. The separable net cutting knife return structure according to claim 1, characterized in that The push rod spacer (d3) is detachably fixed to the rear bin rotating seat and can be rotatably arranged relative to the rear bin rotating seat.
9. The return structure of the separable net cutting knife according to claim 8, characterized in that The push rod spacer sleeve (d3) includes a cylindrical section (d31) close to the rear chamber rotating seat and a conical section (d32) away from the rear chamber rotating seat. The thickness of the cylindrical section (d31) matches the thickness of the push rod (d2), and the diameter of the conical section (d32) increases gradually in the direction away from the cylindrical section (d31).
10. A baler, characterized in that, Comprising: The separable cutting net knife return structure according to any one of claims 1 to 9.