Silage bag compression and wrapping system

Abstract

The application discloses a silage square bale compression and wrapping system, comprising a compression mold, a first film coating device and a second film coating device. The compression mold is used for compressing the incoming silage feed into a feed bale with a certain length and a polygonal cross section, and then gradually pushing out the feed bale. The first film coating device is used for rotating around the feed bale during the forward pushing process of the feed bale, so as to seal and coat the outer surface of the feed bale to form a circumferential film-coated bale. The second film coating device is used for receiving the gradually pushed-out circumferential film-coated bale, and is started after the circumferential film-coated bale is completely pushed out, so that the circumferential film-coated bale rotates around a vertical axis while turning over around a horizontal axis, so as to seal and coat the circumferential film-coated bale along the length direction, and form a full film-coated bale with the film coating on the two ends and the outer surface. The system has high compaction degree and good sealing, can effectively avoid fermentation of the silage feed during storage and transportation, has high storage space utilization rate, effectively saves storage and transportation space, and reduces transportation cost.

Description

Technical Field

[0001] This invention relates to the field of silage baling machine technology, and in particular, to a silage square bale compression and wrapping system. Background Technology

[0002] Currently, corn has become an important raw material for animal fattening, with immature whole corn plants being used as green feed. On the other hand, corn silage is obtained from whole corn plants at the milk stage and is one of the major feed types worldwide.

[0003] In addition, corn cob silage is used as a base for pig fattening. Since feed corn is typically grown on specialized farms, fermentation and reuse on farms for animal fattening are often spatially separate, necessitating the transportation and storage of feed corn. Currently, there are three technologies for preserving feed corn.

[0004] The first method involves storing feed corn in a silo. Chopped and crushed corn is packed into the silo, with additives added and compacted to form a tight, sealed layer on the surface, thus preventing fermentation. One problem with this method is that only one or two days' worth of silage is taken out at a time to avoid fermentation during operation or before use, making the process cumbersome and labor-intensive.

[0005] The second method involves compacting the chopped feed corn in a bagging machine. This is done by using a pressure plate inside an upward-opening bag to compact the corn, which is then suspended in a basket for stability. The disadvantages of this method are: the feed corn may partially expand again when the pressure plate is removed from the bag after compaction; furthermore, the compaction level is low because the corn is only compacted from one side; and additionally, due to the geometry of the bags used, the compacted feed corn does not have an optimal shape, thus the bagged packaging cannot be stored in a space-saving manner.

[0006] The third method involves using a horizontally aligned cylindrical wrapping system. The chopped and crushed feed corn is rolled into a cylindrical shape under pressure, then wrapped in a mesh and plastic film to form a cylindrical package. However, this cylindrical wrapping method has low space utilization and cannot be used for space-saving storage and transportation, resulting in relatively high transportation costs. Summary of the Invention

[0007] This invention provides a silage bale compression and wrapping system to solve the technical problems of low compaction degree of silage and low space utilization due to the final shape of existing wrapping methods.

[0008] The technical solution adopted in this invention is as follows:

[0009] A silage bale compression and wrapping system includes: a compression mold, a first covering device, and a second covering device arranged sequentially along the direction of silage transport; the compression mold is used to allow the silage to be compressed to enter, and compresses the silage into a bale with a certain length along the axial direction and a polygonal cross-section, and then gradually pushes the bale towards the first covering device; the first covering device is located on one side of the direction in which the bale is pushed, and rotates around the bale as it is pushed forward, to seal the outer circumferential surface of the bale and form it into a circumferentially covered bale; the second covering device is used to receive the circumferentially covered bale gradually pushed out by the compression mold, and is activated after the circumferentially covered bale has completely exited the compression mold, so that the circumferentially covered bale revolves around the vertical axis and rotates around the horizontal axis, to seal the circumferentially covered bale along its length, so that the circumferentially covered bale is formed into a fully covered bale with film on both ends and the outer circumferential surface.

[0010] Furthermore, the pressing mold includes a fixed bottom mold, multiple movable molds, a pushing mechanism, and a closing door; the top of the fixed bottom mold has a concave forming groove that extends laterally, and a feed inlet communicating with the forming groove; the multiple movable molds are movably arranged in the forming groove, and the pushing mechanism and the closing door are arranged opposite each other at both ends of the forming groove. The forming groove, the multiple movable molds, the pushing mechanism, and the closing door work together to compress the silage entering the forming groove, so that the silage is formed into a feed bag with a length defined by the distance between the pushing mechanism and the closing door, and a polygonal cross-sectional shape defined by the multiple movable molds and the forming groove; the closing door is also used to open after the feed bag is formed, so that the pushing mechanism pushes the feed bag towards the first coating device along the forming groove.

[0011] Furthermore, the pushing mechanism includes a pushing plate and a sliding drive component connected to the pushing plate for driving its sliding; the closing door includes multiple door panels that cooperate to close the outlet end of the forming groove, and a rotating drive component connecting each door panel. One side of each door panel is hinged to the fixed bottom mold, and the two ends of the rotating drive component are respectively connected to the corresponding door panel and the fixed bottom mold for driving the door panel to rotate to open or close the outlet end of the forming groove.

[0012] Furthermore, the shape of the pusher plate is adapted to the cross-sectional shape of the feed bag; multiple door panels are set corresponding to multiple surfaces of the feed bag so that they are parallel to the corresponding surfaces on the feed bag after opening, thereby providing auxiliary support for the feed bag as it gradually slides out of the forming groove.

[0013] Furthermore, the first coating device includes a hollow cylindrical mounting cylinder, a first drive roller assembly connected to the mounting cylinder to drive the mounting cylinder to rotate, a first coating roller and a first tensioning roller assembly rotatably installed inside the mounting cylinder; a first plastic film is wound on the first coating roller, and the beginning end of the first plastic film is tensioned by the first tensioning roller assembly to be connected to the feed bag; the first drive roller assembly is used to drive the mounting cylinder to rotate, and thus, during the process of the feed bag being pushed into the mounting cylinder, the first coating roller rotates around the feed bag to drive the first plastic film to wrap around the feed bag in a spiral direction to form a circumferentially coated bag.

[0014] Furthermore, the second coating device includes a winding frame rotatably arranged about a vertical axis, a flipping drive mechanism disposed on the winding frame, and a second coating mechanism located outside the winding frame; the flipping drive mechanism is used to support the circumferentially coated package that has completely exited the pressing mold and to flip the circumferentially coated package about a horizontal axis; the second coating mechanism is used to seal the flipped circumferentially coated package along its length direction during the rotation of the winding frame and the flipping drive mechanism about the vertical axis, so that the circumferentially coated package is formed into a fully coated package.

[0015] Furthermore, the flipping drive mechanism includes two sets of second drive rollers respectively disposed on both sides of the circumferential coated package sliding direction, and two sets of second drive components for driving the two sets of second drive rollers to rotate respectively; the two sets of second drive rollers are respectively supported on the winding frame and extend along the sliding direction of the circumferential coated package; the circumferential coated package that has completely exited the pressing mold is supported on the two sets of second drive rollers so as to flip around the horizontal axis during the rotation of the two sets of second drive rollers.

[0016] Furthermore, the winding frame includes a winding table, a rotating rod that is vertically rotatable and whose top end is fixed to the winding table, and two supports that are arranged on both sides along the sliding direction of the circumferential film-coated package and supported on the winding table; each of the two supports is provided with a set of second drive rollers.

[0017] Furthermore, the winding frame also includes two sets of conveyor rollers supported on two supports, the two sets of conveyor rollers extending along the sliding direction of the circumferential coated package; the conveyor rollers are used to receive the circumferential coated package that has not been fully ejected from the pressing die, guide the movement of the circumferential coated package, and guide and support the circumferential coated package on the second drive roller after the circumferential coated package has been fully ejected from the pressing die.

[0018] Furthermore, the second coating mechanism includes a second coating roller and a second tensioning roller assembly that are rotatably arranged; a second plastic film is wound on the second coating roller, and the beginning end of the second plastic film is tensioned by the second tensioning roller assembly to connect the circumferentially coated package, so as to seal the circumferentially coated package along the length direction during the revolution of the circumferentially coated package around the vertical axis, so that the circumferentially coated package is formed into a fully coated package.

[0019] The present invention has the following beneficial effects:

[0020] In this invention system, silage is compacted tightly by a pressing mold, resulting in a higher degree of compaction compared to single-sided compaction. Furthermore, the compacted silage bales are immediately wrapped circumferentially by a first covering device upon exiting the pressing mold, preventing expansion and improving the compaction effect. The circumferentially covered bales are then covered lengthwise by a second covering device, sealing both ends of the circumferentially covered bales. The resulting fully covered bales are compacted and well-sealed, effectively preventing fermentation during storage and transportation. In this invention, the silage is compacted by the pressing mold and simultaneously sealed by the first and second covering devices, ultimately forming cubic bales with a certain length and polygonal cross-section. Compared to cylindrical bales, cubic bales can be stacked stably and reliably. This not only improves the safety of storage and transportation but also maximizes space utilization, effectively saving storage and transportation space and reducing transportation costs. Furthermore, the cross-wrapping of the first and second layers of film allows for the removal of a portion of the silage by peeling back the film, while the remaining silage retains its shape and a relatively sealed state under the action of the first and second layers, preventing fermentation. This is particularly advantageous for buyers, significantly reducing the need for large single-use amounts compared to storage in feed cellars, and allowing for use as needed without concern about fermentation of remaining silage. The improved silage storage method of this invention also attracts users who previously abandoned stored silage due to limitations on its use outside of cellars, thus expanding the potential buyer base.

[0021] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 This is a cross-sectional view of the pressing mold;

[0024] Figure 2 This is a side view of the material path;

[0025] Figure 3 This is a front sectional view of the first coating device;

[0026] Figure 4 This is a side view of the feed bag being transferred from the first coating device to the second coating device;

[0027] Figure 5This is a front view of the process of the circumferentially coated package moving from the first coating device to the second coating device;

[0028] Figure 6 This is a frontal cross-sectional view of the circumferentially coated film wrapped around the second coating device;

[0029] Figure 7 This is a schematic diagram of the circumferentially coated feed bag after its first coating.

[0030] Figure 8 This is a schematic diagram of a fully film-covered feed bag after its second film covering.

[0031] Figure 9 This is a top view of the second laminating mechanism applying the film;

[0032] Figure 10 This is a top view of the circumferentially coated package after it has been rotated 90° by the second coating mechanism.

[0033] Legend:

[0034] 1. Pressing mold; 101. Forming groove; 11. Fixed bottom mold; 12. Movable mold; 13. Pushing mechanism; 131. Pushing plate; 132. Sliding drive component; 133. Reinforcing rib; 14. Closing door; 2. Feed bag; 3. First film covering device; 31. Mounting cylinder; 32. First drive roller group; 33. First film covering roller; 34. First tension roller group; 35. First plastic film; 4. Circumferential film covering bag; 5. Second film covering device; 51. Winding frame; 511. Winding table; 512. Rotating rod; 513. Support; 514. Discharge conveyor roller; 521. Second drive roller; 53. Second film covering mechanism; 531. Second film covering roller; 532. Second tension roller group; 533. Second plastic film; 6. Fully film covering bag. Detailed Implementation

[0035] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0036] Reference Figure 1-69-10. A preferred embodiment of the present invention provides a silage bale compression and wrapping system, comprising: a compression mold 1, a first covering device 3, and a second covering device 5 arranged sequentially along the silage running direction. The compression mold 1 is used to allow the silage to be compressed to enter, and compresses the silage into a bale 2 with a certain length along the axial direction and a polygonal cross-section, and then gradually pushes the bale 2 towards the first covering device 3. The first covering device 3 is located on one side of the direction in which the bale 2 is pushed, and rotates around the bale 2 during the forward pushing process to seal the outer circumferential surface of the bale 2 with film, thus forming a circumferentially covered bale 4. The second coating device 5 is used to receive the circumferentially coated package 4 gradually pushed out by the pressing mold 1, and is activated after the circumferentially coated package 4 is completely removed from the pressing mold 1, so that the circumferentially coated package 4 revolves around the vertical axis and flips around the horizontal axis at the same time, so as to seal the circumferentially coated package 4 along the length direction, so that the circumferentially coated package 4 is formed into a fully coated package 6 with both ends and the outer circumferential surface coated.

[0037] When the silage bale compression and wrapping system of the present invention is working, firstly, the silage to be compressed enters the compression mold 1 through the feed inlet on the compression mold 1. Under the action of the compression mold 1, the silage is compressed into a feed bale 2 with a certain length along the axial direction and a polygonal cross-section. Then, the feed bale 2 is gradually pushed out towards the first covering device 3 under the action of the compression mold 1. When the front end of the feed bale 2 moves out of the compression mold 1, the first covering device 3 starts to rotate around the feed bale 2, so that the feed bale 2 gradually moves forward and pushes out of the compression mold 1 under the action of the compression mold 1. At the same time, the first covering device 3 rotates around the feed bale 2 to seal and cover the outer circumferential surface of the feed bale 2, forming it into a circumferentially covered bale 4. Figure 7 As shown; during the continued pushing out of feed bag 2, the second coating device 5 supports the front end of feed bag 2 for coating. After feed bag 2 is completely removed from pressing mold 1 and fully coated circumferentially to form circumferentially coated bag 4, circumferentially coated bag 4 is supported on the second coating device 5. At the same time, the second coating device 5 is activated, causing circumferentially coated bag 4 to revolve around the vertical axis and rotate around the horizontal axis. During the rotation and rotation of circumferentially coated bag 4, it is simultaneously sealed and coated along its length, so that circumferentially coated bag 4 is formed into a fully coated bag 6 with coating on both ends and the outer circumferential surface, as shown. Figure 8 As shown, this completes the full film covering of one feed package 2.

[0038] In this invention system, silage is fully and tightly compressed by the pressing mold 1, achieving a higher degree of compaction compared to single-sided compaction. Furthermore, the compressed silage bale 2 is immediately wrapped circumferentially by the first covering device 3 upon exiting the pressing mold 1, preventing expansion of the compressed silage bale 2 and improving the compression effect. The circumferentially covered bale 4 is then covered along its length by the second covering device 5, sealing both ends of the circumferentially covered bale 4. The final fully covered bale 6 is tightly compressed and well-sealed, effectively preventing fermentation during silage storage and transportation. In this invention, the silage is tightly compressed by the pressing mold 1 and simultaneously sealed by the first covering device 3 and the second covering device 5, ultimately forming a cubic bale with a certain length and a polygonal cross-section. Compared to cylindrical bales, cubic bales are more stable. The reliable stacking not only improves the safety of storage and transportation but also maximizes space utilization, effectively saving storage and transportation space and reducing transportation costs. Furthermore, the cross-intertwining of the first and second layers of film allows for the removal of a portion of the silage by peeling back the film, while the remaining silage retains its shape and a relatively sealed state under the action of the first and second layers, preventing fermentation. This is particularly advantageous for buyers, significantly reducing the need for large single-use volumes compared to storage in feed cellars, and allowing for use as needed without concern about fermentation of remaining silage. The improved silage storage method of this invention also attracts users who previously abandoned stored silage due to limitations on its use outside of cellars, thus expanding the potential buyer base.

[0039] Optionally, such as Figure 1-2As shown, the pressing mold 1 includes a fixed bottom mold 11, multiple movable molds 12, a pushing mechanism 13, and a closing door 14. The top of the fixed bottom mold 11 has a recessed forming groove 101 extending laterally, and a feed inlet communicating with the forming groove 101. The multiple movable molds 12 are movably disposed within the forming groove 101. The pushing mechanism 13 and the closing door 14 are positioned opposite each other at both ends of the forming groove 101. The forming groove 101, the multiple movable molds 12, the pushing mechanism 13, and the closing door 14 work together to compress the silage entering the forming groove 101, forming the silage into a feed bag 2 with a length defined by the distance between the pushing mechanism 13 and the closing door 14, and a polygonal cross-sectional shape defined by the multiple movable molds 12 and the forming groove 101. The closing door 14 is also used to open after the feed bag 2 is formed, allowing the pushing mechanism 13 to gradually push the feed bag 2 towards the first coating device 3 along the forming groove 101 into the pressing mold 1. During the pressing process, the closed door 14 is closed, and the silage enters the forming trough 101. The pushing mechanism 13 is activated to slowly push the silage toward the closed door 14. Alternatively, the pushing mechanism 13 can be activated after all the silage in a feed bag 2 has entered the forming trough 101. The pushing mechanism 13 pushes the silage forward, and the movable mold 12 also cooperates with the forming trough 101 to press the silage. Thus, the feed bag 2 is formed under the combined action of the forming trough 101, multiple movable molds 12, the pushing mechanism 13, and the closed door 14. The length of the feed bag 2 is limited by the distance between the pushing mechanism 13 and the closed door 14, and the cross-sectional shape of the feed bag 2 is limited by the multiple movable molds 12 and the forming trough 101.

[0040] In this optional solution, such as Figure 1 As shown, the forming groove 101 is a "V" shaped groove, and there are two movable molds 12. Therefore, the feed bag 2 formed is a tetrahedral bag. On the one hand, the pressing mold 1 for forming tetrahedral bags has a simple structure and is easy to process and prepare. On the other hand, tetrahedral bags are easier to stack stably and occupy less space. Therefore, they are generally formed into tetrahedral bags.

[0041] In this optional solution, such as Figure 1 and 2 As shown, the pushing mechanism 13 includes a pushing plate 131 and a sliding drive component 132 connected to the pushing plate 131 for driving its sliding. In a specific embodiment of this optional solution, the pushing mechanism 13 further includes a reinforcing rib 133 connected to the pushing plate 131 to enhance its structural rigidity; the sliding drive component 132 is a conventional drive component that can drive the pushing plate 131 to slide linearly, such as a telescopic cylinder.

[0042] In this optional solution, such as Figure 2As shown, the sealing door 14 includes multiple door panels that cooperate to close the outlet end of the forming groove 101, and a rotary drive component connecting each door panel. One side of each door panel is hinged to the fixed bottom mold 11. The two ends of the rotary drive component are respectively connected to the corresponding door panel and the fixed bottom mold 11 to drive the door panel to rotate and open or close the outlet end of the forming groove 101. During the pressing process of the feed bag 2 in the pressing mold 1, the sealing door 14 is closed. After pressing, the sealing door 14 is opened under the action of the rotary drive component, so that the pushing mechanism 13 gradually pushes the feed bag 2 out of the forming groove 101 along the length direction of the forming groove 101. In a specific embodiment of this optional solution, the rotary drive component can be a telescopic cylinder.

[0043] Preferably, such as Figure 1 As shown, the shape of the pusher plate 131 is adapted to the cross-sectional shape of the feed bag 2 to more stably push the silage to move. Multiple door panels are set corresponding to multiple surfaces of the feed bag 2 so that they are parallel to the corresponding surfaces on the feed bag 2 after opening, thereby providing auxiliary support for the feed bag 2 as it gradually slides out of the forming groove 101. Under the action of the pusher mechanism 13, the front end of the feed bag 2 slides out of the forming groove 101. At this time, the multiple door panels provide auxiliary support for the feed bag 2 to prevent the front end of the feed bag 2 from tilting downward and expanding, which would affect its forming shape. At the same time, it also facilitates the first film covering device 3 to cover the feed bag 2.

[0044] Optionally, such as Figure 2 and Figure 3 As shown, the first coating device 3 includes a hollow cylindrical mounting cylinder 31, a first drive roller assembly 32 connected to the mounting cylinder 31 to drive the mounting cylinder 31 to rotate, a first coating roller 33 rotatably installed inside the mounting cylinder 31, and a first tension roller assembly 34. A first plastic film 35 is wound on the first coating roller 33. The beginning end of the first plastic film 35 is tensioned by the first tension roller assembly 34 and used to connect with the feed bag 2. The first drive roller assembly 32 is used to drive the mounting cylinder 31 to rotate, and thus, as the feed bag 2 is pushed into the mounting cylinder 31, the first coating roller 33 rotates around the feed bag 2 to drive the first plastic film 35 to wrap around the feed bag 2 in a spiral direction to form a circumferentially coated bag 4. In this optional solution, the first drive roller group 32 includes multiple rotatably arranged first drive rollers and a drive motor connected to each first drive roller to drive its rotation. The first drive rollers and the mounting cylinder 31 are connected by gear meshing or by contact extrusion. When the drive motor starts, it drives the connected first drive rollers to rotate, and then drives the mounting cylinder 31 to rotate through the rotation of the multiple first drive rollers.

[0045] During operation, the mounting cylinder 31 rotates, which in turn drives the first coating roller 33 and the first tensioning roller group 34 to rotate synchronously around the center line of the mounting cylinder 31. When the front end of the feed bag 2 is pushed out of the forming groove 101 and enters the multiple door panels, the first plastic film 35 unfolds and is pulled onto the multiple door panels to wrap the door panels. As the feed bag 2 continues to move forward, the first plastic film 35 also opens outside the feed bag 2. As the feed bag 2 continues to move forward, the first plastic film 35 wrapped on the door panels is pulled to wrap the feed bag 2. During this process, the first tensioning roller group 34 is used to provide constant tensile stress so that the first plastic film 35 is in the optimal position on the feed bag 2. During this period, the feed bag 2 will not expand or decompose again. The feed bag 2 is slowly pushed out of the pressing mold 1 by the pushing mechanism 13 and is completely wrapped around the circumference by the first plastic film 35.

[0046] Optionally, such as Figure 4-6 As shown, the second coating device 5 includes a winding frame 51 rotatably mounted about a vertical axis, a flipping drive mechanism mounted on the winding frame 51, and a second coating mechanism 53 located outside the winding frame 51. The flipping drive mechanism supports the circumferentially coated package 4, which has completely exited the pressing mold 1, and flips the circumferentially coated package 4 about a horizontal axis. The second coating mechanism 53 seals the flipped circumferentially coated package 4 along its length direction with film during the rotation of the winding frame 51 and the flipping drive mechanism about the vertical axis, so that the circumferentially coated package 4 is formed into a fully coated package 6.

[0047] In this optional solution, such as Figure 5-6 As shown, the flipping drive mechanism includes two sets of second drive rollers 521 respectively disposed on both sides of the sliding direction of the circumferential coated package 4, and two sets of second drive components for driving the two sets of second drive rollers 521 to rotate respectively. The two sets of second drive rollers 521 are respectively supported on the winding frame 51 and extend along the sliding direction of the circumferential coated package 4. The circumferential coated package 4, which has completely exited the pressing mold 1, is supported on the two sets of second drive rollers 521 so as to flip around the horizontal axis during the rotation of the two sets of second drive rollers 521. In this optional embodiment, the second drive rollers 521 are used to support the circumferential coated package 4. When the second drive component is started, such as when the drive motor is started, it drives the connected second drive rollers 521 to rotate. Since the circumferential coated package 4 has a rounded transition on its edges and has a certain self-weight, when the second drive rollers 521 rotate, the circumferential coated package 4 supported on it can be flipped around the horizontal axis so that the entire end face of the circumferential coated package 4 can be coated.

[0048] In this optional solution, such as Figure 5-6As shown, the winding frame 51 includes a winding table 511, a rotating rod 512 vertically rotatable and fixed at its top to the winding table 511, and two supports 513 arranged on both sides along the sliding direction of the circumferentially coated package 4 and supported on the winding table 511. Each of the two supports 513 is provided with a set of second drive rollers 521. During operation, the rotating rod 512 is driven to rotate by a drive motor, which in turn drives the winding table 511 to rotate about the vertical axis, and the flipping drive mechanism supported on the two supports 513 also rotates about the vertical axis, ultimately driving the circumferentially coated package 4 to rotate horizontally about the vertical axis for subsequent second coating.

[0049] In this optional solution, such as Figure 5-6 As shown, the winding frame 51 also includes two sets of conveyor rollers 514 supported on two supports 513, extending along the sliding direction of the circumferentially coated package 4. The conveyor rollers 514 are used to receive the circumferentially coated package 4 before it is fully ejected from the pressing mold 1, guide the movement of the circumferentially coated package 4, and guide and support the circumferentially coated package 4 on the second drive roller 521 after it is fully ejected from the pressing mold 1. During operation, when the front end of the feed package 2 leaves the pressing mold 1 by a certain distance, under the action of the pushing mechanism 13, the front end of the feed package 2 covered with the first plastic film 35 is supported on the conveyor rollers 514, and gradually supported on the second drive roller 521 behind it under the guidance of the conveyor rollers 514, so that it can be flipped under the action of the second drive roller 521.

[0050] In a specific embodiment of this optional solution, the conveyor roller 514 is connected to a lifting drive component for driving its lifting and lowering. After the circumferentially coated package 4 is completely removed from the pressing mold 1, the conveyor roller 514 gradually descends, so that the circumferentially coated package 4 is gradually supported on the second drive roller 521. Figure 6 As shown. Alternatively, the support 513 has a groove with a gradually increasing depth along the axial direction, and the conveying roller 514 is disposed in the groove. Along the sliding direction of the circumferential film-coated package 4, the circumferential film-coated package 4 is first supported on the conveying roller 514, and then as the height of the conveying roller 514 decreases, the circumferential film-coated package 4 is gradually supported on the second drive roller 521 until it is fully supported on the second drive roller 521.

[0051] Optionally, such as Figure 9-10As shown, the second coating mechanism 53 includes a second coating roller 531 and a second tensioning roller group 532 that are rotatably arranged. A second plastic film 533 is wound on the second coating roller 531. The beginning end of the second plastic film 533 is tensioned by the second tensioning roller group 532 and used to connect the circumferentially coated package 4 so that the circumferentially coated package 4 is sealed and coated along the length direction during the revolution of the circumferentially coated package 4 around the vertical axis, so that the circumferentially coated package 4 is formed into a fully coated package 6. During operation, given the position of the second film covering mechanism 53 relative to the circumferential film covering package 4, when the circumferential film covering package 4 revolves around the vertical axis, the second plastic film 533 can only be wound along the length direction at half the height of the circumferential film covering package 4. Therefore, in order to ensure that the circumferential film covering package 4 is completely wound over the entire end face height, the circumferential film covering package 4 is also rotated around the horizontal axis under the action of the rotation drive mechanism, thereby achieving complete film covering over the entire end face height of the circumferential film covering package 4, resulting in complete film covering and good sealing of the silage.

[0052] In this optional scheme, both the first plastic film 35 and the second plastic film 533 are plastic films with good extensibility. When opened, they can be firmly wrapped around the feed bag 2 by the tensioning device, so that the shape of the feed bag 2 is as stable as possible after being covered with film. The two films are intertwined, so the silage has good sealing performance.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A silage bale compression and wrapping system, characterized in that, include: A pressing mold (1), a first covering device (3), and a second covering device (5) are arranged sequentially along the direction of silage transport; The pressing mold (1) is used to allow the silage to be compressed to enter into it, and after the silage is compressed into a feed bag (2) with a certain length along the axial direction and a polygonal cross section, the feed bag (2) is gradually pushed out towards the first covering device (3). The first covering device (3) is located on one side of the direction in which the feed bag (2) is pushed, so as to rotate around the feed bag (2) during the forward pushing process, so as to seal the outer peripheral surface of the feed bag (2) to form a circumferentially covered bag (4). The second coating device (5) is used to receive the circumferentially coated package (4) gradually pushed out by the pressing mold (1), and is activated after the circumferentially coated package (4) is completely removed from the pressing mold (1), so that the circumferentially coated package (4) revolves around the vertical axis and flips around the horizontal axis, so as to seal the circumferentially coated package (4) along the length direction, so that the circumferentially coated package (4) is formed into a fully coated package (6) with both ends and the outer circumferential surface covered with film; The pressing mold (1) includes a fixed bottom mold (11), multiple movable molds (12) movably arranged, a feeding mechanism (13), and a closing door (14); the top of the fixed bottom mold (11) is provided with a recessed forming groove (101) extending laterally, and a feeding port communicating with the forming groove (101); the multiple movable molds (12) are movably arranged in the forming groove (101), and the feeding mechanism (13) and the closing door (14) are arranged opposite to each other at both ends of the forming groove (101). The four components (13, 14, and 15) work together to compress the silage entering the forming trough (101) so that the silage is formed into a feed bag (2) with a length defined by the distance between the pushing mechanism (13) and the closing door (14), and a polygonal cross-sectional shape defined by multiple movable molds (12) and the forming trough (101); the closing door (14) is also used to open after the feed bag (2) is formed so that the pushing mechanism (13) pushes the feed bag (2) towards the first covering device (3) along the forming trough (101) towards the pressing mold (1); The closed door (14) includes multiple door panels that cooperate to close the outlet end of the forming groove (101), and a rotating drive component connecting each door panel. One side of each door panel is hinged to the fixed bottom mold (11), and the two ends of the rotating drive component are respectively connected to the corresponding door panel and the fixed bottom mold (11) to drive the door panel to rotate to open or close the outlet end of the forming groove (101). Multiple door panels are set on multiple surfaces of the feed bag (2) so that they are parallel to the corresponding surfaces on the feed bag (2) after opening, thereby providing auxiliary support for the feed bag (2) as it gradually slides out of the forming groove (101). The first coating device (3) includes a hollow cylindrical mounting cylinder (31), a first drive roller group (32) connected to the mounting cylinder (31) to drive the mounting cylinder (31) to rotate, a first coating roller (33) and a first tensioning roller group (34) rotatably installed inside the mounting cylinder (31); a first plastic film (35) is wound on the first coating roller (33), and the beginning end of the first plastic film (35) is tensioned by the first tensioning roller group (34) and then used to connect with the feed bag (2).

2. The silage bale compression and wrapping system according to claim 1, characterized in that, The pushing mechanism (13) includes a pushing plate (131) and a sliding drive (13) connected to the pushing plate (131) for driving its sliding.

3. The silage bale compression and wrapping system according to claim 1, characterized in that, The shape of the pusher plate (131) is adapted to the cross-sectional shape of the feed bag (2).

4. The silage bale compression and wrapping system according to claim 1, characterized in that, The first drive roller group (32) is used to drive the mounting cylinder (31) to rotate, and then the first coating roller (33) rotates around the feed bag (2) during the process of the feed bag (2) being pushed into the mounting cylinder (31) to drive the first plastic film (35) to wrap the feed bag (2) along the spiral direction to form a circumferentially coated bag (4).

5. The silage bale compression and wrapping system according to claim 1, characterized in that, The second coating device (5) includes a winding frame (51) rotatably arranged about a vertical axis, a flipping drive mechanism arranged on the winding frame (51), and a second coating mechanism (53) located outside the winding frame (51); The flipping drive mechanism is used to support the circumferential coated package (4) that has completely exited the pressing mold (1) and to flip the circumferential coated package (4) about the horizontal axis. The second coating mechanism (53) is used to seal the circumferentially coated package (4) along the length direction during the rotation of the turning drive mechanism around the vertical axis driven by the winding frame (51), so that the circumferentially coated package (4) is formed into a fully coated package (6).

6. The silage bale compression and wrapping system according to claim 5, characterized in that, The flipping drive mechanism includes two sets of second drive rollers (521) respectively disposed on both sides of the sliding direction of the circumferential film-coated package (4), and two sets of second drive components for driving the two sets of second drive rollers (521) to rotate respectively; Two sets of second drive rollers (521) are respectively supported on the winding frame (51) and extend along the sliding direction of the circumferential film package (4); The circumferentially coated package (4) that has completely exited the pressing mold (1) is supported on two sets of second drive rollers (521) so that it flips around the horizontal axis during the rotation of the two sets of second drive rollers (521).

7. The silage bale compression and wrapping system according to claim 6, characterized in that, The winding frame (51) includes a winding table (511), a rotating rod (512) that is vertically rotatable and whose top end is fixed to the winding table (511), and two supports (513) that are arranged on both sides of the circumferential film-coated package (4) and supported on the winding table (511). Each of the two supports (513) is provided with a set of second drive rollers (521).

8. The silage bale compression and wrapping system according to claim 7, characterized in that, The winding frame (51) also includes two sets of conveyor rollers (514) supported on two supports (513), the two sets of conveyor rollers (514) extending along the sliding direction of the circumferential film-coated package (4); The conveyor roller (514) is used to receive the circumferential coated package (4) that has not been fully ejected from the pressing mold (1) and to guide the movement of the circumferential coated package (4), and to guide and support the circumferential coated package (4) on the second drive roller (521) after the circumferential coated package (4) has been fully ejected from the pressing mold (1).

9. The silage bale compression and wrapping system according to claim 5, characterized in that, The second coating mechanism (53) includes a second coating roller (531) and a second tensioning roller group (532) that are rotatably arranged; A second plastic film (533) is wound on the second coating roller (531). The beginning end of the second plastic film (533) is tensioned by the second tensioning roller group (532) and used to connect the circumferential coating package (4) so ​​that the circumferential coating package (4) is sealed and coated along the length direction during the revolution of the circumferential coating package (4) around the vertical axis so that the circumferential coating package (4) is formed into a fully coated package (6).

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