Rapid separation net casting device of round bundling machine and round bundling machine with same

Abstract

The utility model relates to a rapid separation net casting device of a round bundling machine and the round bundling machine with the rapid separation net casting device. The fast separation net casting device comprises an installation seat plate assembly, a front steel roller assembly, a rubber roller, a rear steel roller assembly and a clamping driving assembly, the front steel roller assembly and the rear steel roller assembly are distributed in a front-back spaced mode, the upper portions of the front steel roller assembly and the rear steel roller assembly are hinged to the installation seat plate assembly, and the installation seat plate assembly is installed on two side plates distributed left and right. The rubber roller is rotatably installed between the two side plates in the left-right direction and located between the front steel roller assembly and the rear steel roller assembly, and the clamping driving assembly is connected with the front steel roller assembly and the rear steel roller assembly and used for driving the front steel roller assembly and the rear steel roller assembly to swing and rotate to be close to each other relative to the installation base plate assembly and clamping the rubber roller front and back. Or the two are driven to swing relative to the mounting seat plate assembly to be separated from the rubber roller. The device has the advantages of being simple and reasonable in structural design, convenient to operate, capable of achieving rapid manual net casting, capable of improving net casting efficiency, high in reliability, low in failure rate and high in stability, and adopting a pure mechanical structure.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural assembly, and particularly relates to a quick-separation net-throwing device for a round baler and a round baler with the same. Background Technique

[0002] With the adjustment of China's agricultural industrial structure and the development of the livestock industry in recent years, the planting area of forage grass has been increasing year by year, and the comprehensive utilization of crop straws has put forward an urgent demand for the collection and storage of forage grass and straws. At present, the most commonly used mechanized harvesting equipment is a square bale baler and a round bale baler. Under China's unique planting environment, the baling operation is affected by time and season, and the operation time is short. How to improve the operation efficiency in a limited operation season has become an urgent problem for each baler manufacturer. At the same time, how to improve the operation efficiency, operation stability and quality reliability is the biggest problem at present.

[0003] During the operation of the existing round baler, the biggest problem is the stability of the net-wrapping system. The net-wrapping system directly affects the quality of the hay bales or straw bales. Therefore, how to improve the success rate of net feeding and quickly change the net has become the key problem of the net-wrapping system. Specifically, the net-wrapping mechanism of the existing round baler is net throwing with a single steel roller and a rubber roller or with double steel rollers and a rubber roller. Among them, the net throwing with a single steel roller and a rubber roller is not ideal, and the insufficient friction is likely to cause the failure of net throwing; the net throwing with double steel rollers and a rubber roller has a good effect, but it is time-consuming and laborious to replace the net bundle, and the efficiency is low.

[0004] Based on this, it is necessary to develop a quick-separation net-throwing device for a round baler to overcome the above technical problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a quick-separation net-throwing device for a round baler and a round baler with the same, which effectively overcomes the defects of the prior art.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A quick-separation net-throwing device for a round baler includes a mounting seat plate assembly, a front steel roller assembly, a rubber roller, a rear steel roller assembly and a clamping drive assembly. The front steel roller assembly and the rear steel roller assembly are distributed at intervals front and back, and their upper parts are respectively hinged to the mounting seat plate assembly. The mounting seat plate assembly is respectively installed on two side plates distributed left and right. The rubber roller is rotatably installed between the two side plates in the left-right direction and is located between the front steel roller assembly and the rear steel roller assembly. The clamping drive assembly is respectively connected to the front steel roller assembly and the rear steel roller assembly, and is used to drive the two to swing relative to the mounting seat plate assembly to close and clamp the rubber roller front and back, or to drive the two to swing relative to the mounting seat plate assembly to separate from the rubber roller.

[0008] Based on the above technical solutions, the present utility model can also be improved as follows.

[0009] Further, the above-mentioned front steel roller assembly includes two front steel roller weldments and a front steel roller that are horizontally and parallelly spaced apart from each other. The upper ends of the two front steel roller weldments are respectively hinged to the above-mentioned mounting seat plate assembly. The front steel roller extends in the left-right direction, and both ends of the front steel roller are respectively rotatably assembled between the lower ends of the two front steel roller weldments; the above-mentioned clamping drive assembly is connected between one of the above-mentioned front steel roller weldments and the above-mentioned rear steel roller assembly.

[0010] Further, the above-mentioned rear steel roller assembly includes two rear steel roller weldments and a rear steel roller that are horizontally and parallelly spaced apart from each other. The upper ends of the two rear steel roller weldments are respectively hinged to the above-mentioned mounting seat plate assembly. The rear steel roller extends in the left-right direction, and both ends of the rear steel roller are respectively rotatably assembled between the lower ends of the two rear steel roller weldments; the above-mentioned clamping drive assembly is connected between one end of the above-mentioned front steel roller weldment and the rear steel roller weldment.

[0011] Further, it further includes a clamping and holding assembly. The above-mentioned clamping and holding assembly is connected between the above-mentioned front steel roller assembly and the rear steel roller assembly and is used for locking after the two swing to approach and clamp the above-mentioned rubber roller front and back.

[0012] Further, there are two sets of the above-mentioned clamping and holding assemblies, and the two sets of the above-mentioned clamping and holding assemblies are respectively connected between the front steel roller weldments and the rear steel roller weldments at both ends.

[0013] Further, the above-mentioned clamping and holding assembly includes a positioning bolt, an elastic connecting piece, and a pull rod. One end of the above-mentioned pull rod is installed on the side end of the above-mentioned front steel roller weldment through a mounting plate, the above-mentioned positioning bolt is vertically installed on the side end of the above-mentioned rear steel roller weldment, and the above-mentioned elastic connecting piece is connected between the above-mentioned positioning bolt and the other end of the pull rod.

[0014] Further, the above-mentioned elastic connecting piece is a spring, and hooks are respectively provided at both ends thereof. A hanging ring is provided at the other end of the above-mentioned pull rod, and the hooks at both ends of the above-mentioned spring are respectively hooked on the above-mentioned positioning bolt and the hanging ring.

[0015] Further, the above-mentioned clamping drive assembly includes a first connecting arm, a second connecting arm, and an operating arm. One end of the above-mentioned first connecting arm is hinged to the above-mentioned front steel roller weldment through a pin shaft, one end of the above-mentioned second connecting arm is hinged to the above-mentioned rear steel roller weldment through a pin shaft, the other end of the above-mentioned first connecting arm is hinged to the other end of the above-mentioned second connecting arm through a pin shaft, one end of the above-mentioned operating arm is fixedly connected to one end of the above-mentioned second connecting arm, the above-mentioned operating arm extends to the rear of the above-mentioned rear steel roller assembly, and the above-mentioned operating arm is used for being pressed downward or lifted upward under an external force, so as to drive the above-mentioned second connecting arm to swing up and down, and further drive the above-mentioned first connecting arm to swing in linkage.

[0016] Furthermore, there are two sets of the above clamping drive assemblies, and the two sets of the above clamping drive assemblies are respectively connected to the above front steel roller welding and the rear steel roller welding at both ends in a one-to-one correspondence. A limiting notch is provided at the lower part of one end of the above operating arm, and a limiting post corresponding to the above limiting notch is provided at the side end of the above rear steel roller welding. The above operating arm can be pressed downward under the action of an external force until the above limiting notch is engaged with the above limiting post, and the above front steel roller assembly and the rear steel roller assembly are separated from each other and separated from the above rubber roller.

[0017] The beneficial effects of the present utility model are: simple and reasonable structural design, convenient operation, capable of realizing rapid manual net throwing, improving the net throwing efficiency, pure mechanical structure, high reliability, low failure rate, and strong stability.

[0018] A round baler is further provided, including a round baler rapid separation net throwing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the round baler rapid separation net throwing device of the present utility model;

[0020] Figure 2 It is a state diagram of clamping the rubber roller when the round baler rapid separation net throwing device of the present utility model is in use;

[0021] Figure 3 It is a state diagram of separating the rubber roller when the round baler rapid separation net throwing device of the present utility model is in use;

[0022] Figure 4 It is a structural schematic diagram of the front steel roller welding in the round baler rapid separation net throwing device of the present utility model;

[0023] Figure 5 It is a structural schematic diagram of the rear steel roller welding in the round baler rapid separation net throwing device of the present utility model;

[0024] Figure 6 It is a structural schematic diagram of the clamping drive assembly in the round baler rapid separation net throwing device of the present utility model;

[0025] Figure 7 It is a structural schematic diagram of the clamping holding assembly in the round baler rapid separation net throwing device of the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 2. Front steel roller assembly; 3. Rubber roller; 4. Rear steel roller assembly; 5. Clamping drive assembly; 6. Clamping and holding assembly; 21. Front steel roller welding; 22. Front steel roller; 41. Rear steel roller welding; 42. Rear steel roller; 51. First connecting arm; 52. Second connecting arm; 53. Operating arm; 61. Positioning bolt; 62. Elastic connecting piece; 63. Pull rod; 631. Hanging ring. Detailed implementation mode

[0028] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0029] Embodiment 1

[0030] As Figure 1 、 2 、Figure 3 shows, the quick separation and net throwing device of the round baler in this embodiment includes a mounting seat plate assembly, a front steel roller assembly 2, a rubber roller 3, a rear steel roller assembly 4 and a clamping drive assembly 5. The above-mentioned front steel roller assembly 2 and rear steel roller assembly 4 are distributed at intervals front and rear, and their upper parts are respectively hinged to the above-mentioned mounting seat plate assembly. The above-mentioned mounting seat plate assembly is respectively installed on two side plates distributed left and right. The above-mentioned rubber roller 3 is rotatably installed between the two side plates in the left-right direction and is located between the above-mentioned front steel roller assembly 2 and rear steel roller assembly 4. The above-mentioned clamping drive assembly 5 is respectively connected to the above-mentioned front steel roller assembly 2 and rear steel roller assembly 4, and is used to drive the two to swing relative to the mounting seat plate assembly to approach and clamp the above-mentioned rubber roller 3 front and rear, or to drive the two to swing relative to the mounting seat plate assembly to separate from the above-mentioned rubber roller 3.

[0031] The quick separation and net throwing device of the round baler in this embodiment adopts a structural design of arranging a set of steel rollers in front and behind the rubber roller 3 respectively. The mechanical clamping drive assembly 5 is used to drive the front steel roller assembly 2 and the rear steel roller assembly 4 to swing back and forth relative to the mounting seat plate assembly to approach each other and clamp the rubber roller 3 located between them, or to swing to separate from each other front and rear and separate from the rubber roller 3. When it is necessary to replace the net, operate the clamping drive assembly 5 to separate the front steel roller assembly 2 and the rear steel roller assembly 4 from the rubber roller 3, then replace the new net roll, then wind the net (designated by a in the figure) around the upper half of the rubber roller 3, and then operate the clamping drive assembly 5 to drive the front steel roller assembly 2 and the rear steel roller assembly 4 to swing to clamp the rubber roller 3 front and rear. The rubber roller 3 can output the net during rotation and wrap it around the bale. Overall, the structural design is simple, reasonable, the operation is convenient, it can realize quick manual net throwing, improve the net throwing efficiency, is a pure mechanical structure, has high reliability, low failure rate and strong stability.

[0032] In the quick separation and net throwing device of the round baler in this embodiment, the mounting seat plate assembly adopts a structural design of two mounting seat plates (designated by b in the figure). The two mounting seat plates are distributed at intervals left and right and are respectively connected and fixed to the two side plates on the left and right sides.

[0033] As a preferred embodiment, the above-mentioned front steel roller assembly 2 includes two front steel roller weldments 21 and front steel rollers 22 that are horizontally and parallelly spaced apart. The upper ends of the two front steel roller weldments 21 are respectively hinged to the mounting seat plate assembly. The front steel rollers 22 extend in the left-right direction, and both ends of the front steel rollers 22 are respectively rotatably assembled between the lower ends of the two front steel roller weldments 21. The clamping drive assembly 5 is connected between one of the front steel roller weldments 21 and the rear steel roller assembly 4.

[0034] In the above-mentioned implementation scheme, the structure of the front steel roller assembly 2 is simply designed. By using the two front steel roller weldments 21 distributed left and right, the front steel rollers 22 can be stably assembled. The two front steel roller weldments 21 can swing back and forth relative to the mounting seat plate assembly, so that the front steel rollers 22 can be clamped or separated from the rubber roller 3. The structure is simply and reasonably designed.

[0035] In this embodiment, the upper end of the front steel roller weldment 21 is hinged to the mounting seat plate assembly through a rotating pin. The front steel roller weldment 21 is made of a flat strip-shaped sheet metal part.

[0036] As a preferred embodiment, the above-mentioned rear steel roller assembly 4 includes two rear steel roller weldments 41 and rear steel rollers 42 that are horizontally and parallelly spaced apart. The upper ends of the two rear steel roller weldments 41 are respectively hinged to the mounting seat plate assembly. The rear steel rollers 42 extend in the left-right direction, and both ends of the rear steel rollers 42 are respectively rotatably assembled between the lower ends of the two rear steel roller weldments 41. The clamping drive assembly 5 is connected between the front steel roller weldment 21 and the rear steel roller weldment 41 at one end.

[0037] In the above-mentioned implementation scheme, the structure of the rear steel roller assembly 4 is simply designed. By using the two rear steel roller weldments 41 distributed left and right, the rear steel rollers 42 can be stably assembled. The two rear steel roller weldments 41 can swing back and forth relative to the mounting seat plate assembly, so that the rear steel rollers 42 can be clamped or separated from the rubber roller 3. The structure is simply and reasonably designed.

[0038] In this embodiment, the upper end of the rear steel roller weldment 41 is hinged to the mounting seat plate assembly through a rotating pin. The rear steel roller weldment 41 is made of a flat strip-shaped sheet metal part.

[0039] As a preferred embodiment, a clamping and holding assembly 6 is further included. The clamping and holding assembly 6 is connected between the front steel roller assembly 2 and the rear steel roller assembly 4 and is used for locking after the two swing to approach and clamp the rubber roller 3 front and back.

[0040] In the above embodiments, the design of the clamping and holding assembly 6 is mainly to lock the front steel roller 22 and the rear steel roller 42 after clamping the rubber roller 3 front and rear, so as to maintain the clamped state of the front steel roller 22 and the rear steel roller 42 with the rubber roller 3, enabling the subsequent process of tying the bale net to proceed effectively.

[0041] As a preferred embodiment, two sets of the above clamping and holding assemblies 6 are provided, and the two sets of the above clamping and holding assemblies 6 are respectively connected between the front steel roller welding 21 and the rear steel roller welding 41 at both ends.

[0042] In the above embodiments, the two sets of clamping and holding assemblies 6 can lock and hold the corresponding front steel roller welding 21 and rear steel roller welding 41 at both the left and right ends, and the overall force is relatively balanced.

[0043] As a preferred embodiment, as Figure 7 shown, the above clamping and holding assembly 6 includes a positioning bolt 61, an elastic connecting member 62, and a pull rod 63. One end of the above pull rod 63 is installed on the side end of the above front steel roller welding 21 through a mounting plate (designated by d in the figure), the above positioning bolt 61 is vertically installed on the side end of the above rear steel roller welding 41, and the above elastic connecting member 62 is connected between the other end of the above positioning bolt 61 and the pull rod 63.

[0044] In the above embodiments, after the front steel roller 22 and the rear steel roller 42 clamp the rubber roller 3 front and rear, the elastic connecting member 62 and the pull rod 63 are connected, and an elastic traction force is formed between the two, so that the front steel roller 22 and the rear steel roller 42 maintain the state of elastically clamping the rubber roller 3. The structural design is relatively simple and the operation is also relatively convenient.

[0045] In this embodiment, the above elastic connecting member 62 is a spring, and hooks are respectively provided at both ends thereof. A hanging ring 631 is provided at the other end of the above pull rod 63, and the hooks at both ends of the above spring are respectively hooked on the above positioning bolt 61 and the hanging ring 631.

[0046] It should be added that: as Figure 4 shown, a mounting plate is fixed in the middle of the side end of the front steel roller welding 21, and one end of the pull rod 63 is connected to the mounting plate. Specifically, one end of the pull rod 63 penetrates the hole on the mounting plate, and one end of the pull rod 63 is provided as a screw section, and positioning nuts screwed with one end of the pull rod 63 are respectively provided on both sides of the mounting plate. As Figure 5 shown, a connecting ear (designated by e in the figure) is provided in the middle of the front side of the rear steel roller welding 41, and the positioning bolt 61 penetrates and is fixed through the connecting ear. After the positioning bolt 61 penetrates, it is fixed to the connecting ear through nuts provided on both sides of the connecting ear.

[0047] As a preferred embodiment, as Figure 6As shown in the figure, the above clamping drive assembly 5 includes a first connecting arm 51, a second connecting arm 52, and an operating arm 53. One end of the first connecting arm 51 is hinged to the front steel roll welding 21 through a pin shaft. One end of the second connecting arm 52 is hinged to the rear steel roll welding 41 through a pin shaft. The other end of the first connecting arm 51 is hinged to the other end of the second connecting arm 52 through a pin shaft. One end of the operating arm 53 is fixedly connected to one end of the second connecting arm 52. The operating arm 53 extends to the rear of the rear steel roll assembly 4. The operating arm 53 is used to be pressed downward or lifted upward under an external force, so as to drive the second connecting arm 52 to swing up and down, and further drive the first connecting arm 51 to swing and link.

[0048] In the above implementation, during operation, when the operating arm 53 is pressed downward, the connection point of the other ends of the first connecting arm 51 and the second connecting arm 52 can be moved upward, so that the front steel roll welding 21 and the rear steel roll welding 41 respectively swing relative to the mounting seat plate assembly to move away from each other, and the front steel roll 22 and the rear steel roll 42 are separated from the rubber roll 3. Similarly, when the operating arm 53 is lifted upward (or raised), the front steel roll 22 and the rear steel roll 42 can be clamped with the rubber roll 3. The operation is relatively simple and fast.

[0049] In this embodiment, there are two groups of the above clamping drive assemblies 5. The two groups of the above clamping drive assemblies 5 are respectively connected to the front steel roll weldings 21 and the rear steel roll weldings 41 at both ends in a one-to-one correspondence. A limit notch (designated as c in the figure) is provided at the lower part of one end of the operating arm 53. A limit post (designated as f in the figure) corresponding to the limit notch is provided at the side end of the rear steel roll welding 41. The operating arm 53 can be pressed downward under an external force until the limit notch is engaged with the limit post, and the front steel roll assembly 2 and the rear steel roll assembly 4 are moved away from each other and separated from the rubber roll 3. During operation, the two groups of clamping drive assemblies 5 can be operated together, and the force is relatively balanced.

[0050] It should be supplemented and explained that: in the two groups of clamping drive assemblies 5, the operating arm 53 of one of the groups can be removed. Pressing down or lifting one operating arm 53 can make the two groups of clamping drive assemblies 5 synchronously linked, so that the front steel roll 22 and the rear steel roll 42 are clamped with or separated from the rubber roll 3.

[0051] Embodiment 2

[0052] The round baler of this embodiment includes the round baler quick separation net throwing device in Embodiment 1.

[0053] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0055] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "attachment", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0058] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A quick separation and net throwing device for a round baler, characterized in that: It includes a mounting seat plate assembly, a front steel roller assembly (2), a rubber roller (3), a rear steel roller assembly (4) and a clamping drive assembly (5). The front steel roller assembly (2) and the rear steel roller assembly (4) are distributed at intervals front and back, and their upper parts are respectively hinged to the mounting seat plate assembly. The mounting seat plate assembly is respectively installed on two side plates distributed left and right. The rubber roller (3) is rotatably installed between the two side plates in the left-right direction and is located between the front steel roller assembly (2) and the rear steel roller assembly (4). The clamping drive assembly (5) is respectively connected to the front steel roller assembly (2) and the rear steel roller assembly (4) and is used to drive the two to swing relative to the mounting seat plate assembly to close and clamp the rubber roller (3) front and back, or to drive the two to swing relative to the mounting seat plate assembly to separate from the rubber roller (3).

2. The quick separation and net throwing device of a round baler according to claim 1, wherein: The front steel roller assembly (2) includes two front steel roller weldments (21) and a front steel roller (22) that are parallel and spaced apart left and right. The upper ends of the two front steel roller weldments (21) are respectively hinged to the mounting seat plate assembly. The front steel roller (22) extends in the left-right direction, and both ends of the front steel roller (22) are rotatably assembled between the lower ends of the two front steel roller weldments (21). The clamping drive assembly (5) is connected between one of the front steel roller weldments (21) and the rear steel roller assembly (4).

3. The quick separation net throwing device of a round baler according to claim 2, characterized in that: The rear steel roller assembly (4) includes two rear steel roller weldments (41) and a rear steel roller (42) that are parallel and spaced apart left and right. The upper ends of the two rear steel roller weldments (41) are respectively hinged to the mounting seat plate assembly. The rear steel roller (42) extends in the left-right direction, and both ends of the rear steel roller (42) are rotatably assembled between the lower ends of the two rear steel roller weldments (41). The clamping drive assembly (5) is connected between the front steel roller weldment (21) and the rear steel roller weldment (41) at one end.

4. A quick separation and net - throwing device for a round baler according to claim 3, characterized in that: It further includes a clamping and holding assembly (6). The clamping and holding assembly (6) is connected between the front steel roller assembly (2) and the rear steel roller assembly (4) and is used to lock after the two swing to close and clamp the rubber roller (3) front and back.

5. A quick separation and net - throwing device for a round baler according to claim 4, characterized in that: There are two groups of the clamping and holding assemblies (6), and the two groups of the clamping and holding assemblies (6) are respectively connected between the front steel roller weldments (21) and the rear steel roller weldments (41) at both ends.

6. A quick separation and net - throwing device for a round baler according to claim 5, characterized in that: The clamping and holding assembly (6) includes a positioning bolt (61), an elastic connecting piece (62) and a pull rod (63). One end of the pull rod (63) is installed on the side end of the front steel roller weldment (21) through a mounting plate. The positioning bolt (61) is vertically installed on the side end of the rear steel roller weldment (41). The elastic connecting piece (62) is connected between the positioning bolt (61) and the other end of the pull rod (63).

7. A quick separation net throwing device for a round baler according to claim 6, characterized in that: The elastic connecting piece (62) is a spring, and hooks are respectively arranged at both ends thereof. A hanging ring (631) is arranged at the other end of the pull rod (63). The hooks at both ends of the spring are respectively hooked on the positioning bolt (61) and the hanging ring (631).

8. A quick separation net throwing device for a round baler according to claim 3, characterized in that: The clamping drive assembly (5) comprises a first connecting arm (51), a second connecting arm (52) and an operating arm (53), one end of the first connecting arm (51) is hinged to the front steel roller weld (21) through a pin, one end of the second connecting arm (52) is hinged to the rear steel roller weld (41) through a pin, the other end of the first connecting arm (51) is hinged to the other end of the second connecting arm (52) through a pin, one end of the operating arm (53) is connected and fixed to one end of the second connecting arm (52), the operating arm (53) extends to the rear of the rear steel roller assembly (4), and the operating arm (53) is used to press downward or pull upward under the action of an external force, thereby driving the second connecting arm (52) to swing up and down, and then driving the first connecting arm (51) to swing in linkage.

9. A quick separation net throwing device for a round baler according to claim 8, characterized in that: The clamping drive assembly (5) is provided with two groups, and the two groups of the clamping drive assembly (5) are respectively connected to the front steel roller weld (21) and the rear steel roller weld (41) at both ends in a one-to-one manner. A limiting notch is provided at the lower part of one end of the operating arm (53), and a limiting column corresponding to the limiting notch is provided at the side end of the rear steel roller weld (41). The operating arm (53) can be pressed downward under the action of an external force until the limiting notch is engaged with the limiting column, so that the front steel roller assembly (2) and the rear steel roller assembly (4) are moved away from each other and separated from the rubber roller (3).

10. A round baler, characterized in that: It comprises a round baler quick-detachable net casting device as claimed in any one of claims 1 to 9.

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