Cotton bale sheathing device and sheathing and sealing system

Abstract

The utility model discloses a cotton bale sheathing device and a sheathing and sealing system. The cotton bale sheathing device comprises a sheathing support, a cotton bale conveying device and a cotton bale conveying device, a wrapping device; if a shell of the wrapping device is provided with a left shell assembly and a right shell assembly, the cotton bale wrapping device further comprises a left pivot assembly, a right pivot assembly and a reset device, and a guide-in cone structure is formed. If the shell is provided with an upper shell assembly and a lower shell assembly, the upper shell assembly and the lower shell assembly form a leading-in cone structure. The cotton bale bagging device is wide in application range and easy to achieve bagging.

Description

Technical Field

[0001] The utility model relates to a device for covering cotton bales, and also relates to a covering and sealing system equipped with the cotton bale covering device. Background Art

[0002] After the baling machine on the cotton bale processing production line bales the cotton bales, it is necessary to cover the cotton bales. There are mainly two types of cotton bags used, one is a cotton cloth bag, and the other is a plastic bag. The appearance of the plastic bag is mainly used to realize the automation of cotton bale covering. At the same time, in order to realize the automatic covering of the cotton cloth bag, at present, some cotton cloth bags are provided with hot-melt films at predetermined positions of the bag mouth to facilitate the picking up of the cotton cloth bag. Generally speaking, given that fewer and fewer workers can be invested in the cotton processing production line, the automation of the cotton processing production process line is an inevitable trend.

[0003] In some implementations, the covering device of the cotton bale covering and sealing system is installed on a frame body, and a transverse guide rail for guiding the covering device horizontally is provided on the frame body. Here, the horizontal direction is perpendicular to the conveying direction of the cotton bale. It should be known that the conveying direction of the cotton bale is generally called the front-back direction, and the front-back direction is also called the longitudinal direction. In this type of implementation, the frame body has a main frame body and a side frame body. Among them, the conveying path of the cotton bale is located on the main frame body, and the side frame body is located on one side of the main frame body. The transverse guide rail is located at the position of the side frame body and is installed on both the side frame body and the main frame body at the same time. Correspondingly, the transverse guide rail has a first position for the covering device to avoid the cotton bale conveying path, and this first position must be located on the auxiliary frame body. The first position is also called the bag covering position. At the first position, a worker puts a cotton cloth bag, for example, on the covering device from the outlet end of the covering device.

[0004] Correspondingly, the transverse guide rail has a second position for the covering device to be located on the cotton bale conveying path. After the bag covering is completed, the covering device moves to the second position, and the mechanism for pushing the cotton bale in the covering and sealing system pushes the cotton bale so that the cotton bale is pushed into the covering device from the inlet and enters the cotton cloth bag from the outlet of the covering device, thereby realizing bag covering. In addition, a conversion drive mechanism is provided for the position conversion of the covering device between the first position and the second position on the transverse guide rail. The covering device of this type of covering and sealing system belongs to a covering device with a fixed shape, which can generally be understood as a pipe structure. Its inlet end is a wide mouth to facilitate the introduction of the cotton bale. The rest of the covering device is a rectangular pipe structure. This structure has little impact during manual bag covering, but if the automatic bag covering method is adopted, since there are problems with inconsistent opening degrees of the bag mouths of both the cotton cloth bag and the plastic bag, it is difficult to align the bag mouth with the outlet of the covering device, so the bag covering success rate is relatively low. Just for this type of covering and sealing system, it requires workers to perform bag covering, which not only has low efficiency but also has relatively large potential safety hazards.

[0005] In order to simplify the structure, the bagging device is directly installed on the main frame in a fixed manner, and the sub-frame is omitted, but it is still necessary to have a worker on each side of the main frame where the bagging device is located to cooperate in bagging. This is also related to the above-mentioned shape of the bagging device, making it difficult to implement machine bagging.

[0006] In order to meet the bagging requirements of the machine, the rectangular tube section of the bagging device is required to be relatively small. In other words, the bagging opening of the cotton bag, for example, is larger than the outlet of the bagging device, which is conducive to bagging. However, the cotton bale and the cotton bag, for example, are generally tightly combined. A loose cotton bag, for example, is not only unsightly but also easily damaged after being put on the cotton bale.

[0007] Furthermore, in some implementations, an independent bag opener is provided, and this type of implementation is mainly applicable to cotton bagging, because the bags are usually stacked and stored, and the bag surfaces of the plastic bags are in close contact with each other in this stacked state, and often require a certain amount of force to open. However, the cotton bag itself is relatively heavy, and the bag surface affinity is relatively weak, so this situation does not exist, but it is necessary to set a hot melt adhesive sheet at a predetermined position of the cotton bag opening, specifically at the upper bag surface. Further, a suction cup assembly is provided, the suction cup sucks the hot melt adhesive sheet, and the upper bag surface is lifted, the bag opening is opened, and then the bag opener intervenes in the bag opening, and the bag opening is opened to the maximum. Since the position of the bag opener is determined, the alignment relationship between the bag opening after opening and the bag cover is relatively accurate. In this type of implementation, the setting position of the bag opener is easy to interfere with other components, and the design is relatively difficult. At the same time, since the bag opener itself has a very complex structure, the scope of application is also relatively limited. Utility Model Content

[0008] In view of this, an object of the present invention is to provide a cotton bale bagging device which has a wide application range and is easy to implement bagging. The present invention also provides a bagging and sealing system equipped with the cotton bale bagging device.

[0009] According to a first aspect of the embodiment of the utility model, a cotton bag wrapping device is provided, the basic structure of which includes:

[0010] Kit bracket;

[0011] A bagging device is located on the bagging support and has a bag inlet and a bag outlet, the bag inlet and the bag outlet determine the front and rear directions, and the shell of the bagging device has a left shell assembly and a right shell assembly or an upper shell assembly and a lower shell assembly;

[0012] If the shell has a left shell assembly and a right shell assembly, the cotton bag wrapping device further includes:

[0013] A left pivot assembly, located on the kit bracket, is used for pivoting the left housing assembly so that the left housing assembly has a swinging freedom within a predetermined reference plane;

[0014] The right pivot assembly, located on the sheath bracket, is used for pivoting the right shell assembly, enabling the right shell assembly to have a degree of freedom of swinging within a predetermined reference plane;

[0015] The reset device is used to make the left shell assembly and the right shell assembly in the initial position. And in the initial position, the left shell assembly and the right shell assembly are close to each other at the outlet end of the sheath device to form an inlet cone structure;

[0016] When the shell has an upper shell assembly and a lower shell assembly, the upper shell assembly and the lower shell assembly are pivotally connected by a horizontal shaft at the inlet end, or the upper shell assembly has a static part at the rear and a movable part at the front, and the movable part and the static part are pivotally connected by a horizontal shaft or the movable part and the lower shell assembly are pivotally connected by a horizontal shaft; Based on gravity, the upper shell assembly and the lower shell assembly are in the initial position, and in the initial position, the upper shell assembly and the lower shell assembly are close to each other at the outlet end of the sheath device to form an inlet cone structure.

[0017] Optionally, both the left shell assembly and the right shell assembly include:

[0018] The main shell is connected to the corresponding pivot assembly, and a notch is formed at the upper part or the middle-upper part of the front or the middle-front of the main shell; and

[0019] The auxiliary shell is hinged to the main shell through a horizontal hinge, and in the initial state, the auxiliary shell is supported on the main shell, enabling the corresponding shell assembly to have an auxiliary inlet cone structure, and the auxiliary shell is lifted by the cotton bale when the cotton bale passes through the sheath device.

[0020] Optionally, the length of the auxiliary shell in the front-rear direction is 0.40 - 0.75 times the total length of the sheath device shell.

[0021] Optionally, the auxiliary shell has auxiliary side plates and an auxiliary top plate connected to the upper edges of the auxiliary side plates;

[0022] The main shell has a main lower side plate at the notch, and the rest has a main side plate integrated with the main lower side plate, a main top plate connected to the upper edge of the main side plate, and a bottom plate; the bottom plate is correspondingly connected to the lower edges of the main side plate and the main lower side plate;

[0023] Correspondingly, the hinge between the auxiliary shell and the main shell is the hinge between the auxiliary top plate and the corresponding main top plate.

[0024] Optionally, there are arc-shaped or flat transition plates between the auxiliary side plates and the auxiliary top plate, and between the main lower side plates and the bottom plate.

[0025] Optionally, a first buffer device is provided on the edge of the main shell that determines the notch and is used to support the auxiliary shell, and the main shell supports the auxiliary shell through the first buffer device.

[0026] Optionally, the first buffer device includes:

[0027] The outer guide plate is fixed to the outside of the main housing, and the part of the outer guide plate extending upward from the notch is used to guide the outer wall surface of the secondary side plate;

[0028] The first buffer pad is arranged at the upper edge corresponding to the notch.

[0029] Optionally, the first buffer device further includes:

[0030] The inner guide plate is fixed to the inside of the main housing, is aligned with the corresponding outer guide plate, and the part of the inner guide plate extending upward from the notch guides the inner wall of the secondary side plate;

[0031] The first buffer pad is clamped between the inner guide plate and the outer guide plate.

[0032] Optionally, in the front-rear direction, the first buffer device is located in the middle of the notch.

[0033] Optionally, on the side wall of the corresponding housing assembly, the secondary housing occupies 35% - 75% of the side wall height.

[0034] Optionally, both the left pivot assembly and the right pivot assembly include:

[0035] The fixed shaft is installed on the outside of the corresponding housing assembly;

[0036] The rotating sleeve is installed on the fixed shaft through a bearing, and the rotating sleeve is fixedly connected to the outer wall surface of the corresponding housing assembly.

[0037] Optionally, both the left pivot assembly and the right pivot assembly further include:

[0038] The strengthening arm is arranged in parallel on one side or both sides of the rotating sleeve;

[0039] The first connecting piece is used for fixedly connecting the strengthening arm and the upper end of the fixed shaft.

[0040] Optionally, the connecting part between the corresponding housing assembly and the corresponding pivot assembly has a connecting reinforcement plate.

[0041] Optionally, in addition to including the first part located on the outer wall surface of the corresponding housing assembly, the connecting reinforcement plate further includes a second part extending to the top wall surface of the corresponding housing assembly.

[0042] Optionally, the positions where the left housing assembly and the right housing assembly are connected to the corresponding pivot assemblies are the rear parts of the corresponding housing assemblies.

[0043] Optionally, the left housing assembly and the right housing assembly are provided with a limiting component on the front side of the corresponding pivot assembly to limit the maximum rotation angle of the corresponding housing assembly.

[0044] Optionally, the position-limiting component is a second buffer device that is statically determined relative to the corresponding housing assembly.

[0045] Optionally, the second buffer device is a spring guide post;

[0046] Correspondingly, a cushion block is provided at a position on the corresponding housing assembly for cooperating with the spring guide post.

[0047] Optionally, the wrapper is installed on the wrapper bracket through a slide plate assembly;

[0048] Correspondingly, the wrapper bracket is adapted with a guide rail that forms a guide rail pair with the slide plate assembly;

[0049] A driving device is provided to drive the wrapper to move along the guide rail.

[0050] Optionally, the driving device is a linear driving mechanism or a linear driving component.

[0051] Optionally, the linear driving mechanism is selected from a synchronous belt mechanism, a transmission chain mechanism, a nut-screw mechanism or a rack and pinion mechanism;

[0052] The linear driving component is selected from a cylinder, a hydraulic cylinder, a linear motor or an electric push rod.

[0053] Optionally, a trolley is connected to the rear side of the slide plate assembly to continue to receive the bagging platform when the wrapper moves forward in place;

[0054] The trolley runs on the guide rail or a lane provided on the wrapper bracket.

[0055] Optionally, an adjusting bottom plate is provided for each of the left housing assembly and the right housing assembly;

[0056] The corresponding housing assembly is installed on the adjusting bottom plate through a corresponding pivot assembly;

[0057] The adjusting bottom plate is adjusted transversely of the slide plate assembly and is adapted with a locking device to lock the adjusting bottom plate after the adjustment is in place.

[0058] Optionally, a predetermined distance is left between the top plate of the left housing assembly and the top plate of the right housing assembly for the bag pushing mechanism to intervene in the wrapper from above.

[0059] According to a second aspect of the embodiments of the present invention, a bagging and sealing system is provided, which includes the cotton bale bagging device according to the first aspect of the embodiments of the present invention.

[0060] The bagging device used in the cotton bag bagging device according to the first aspect of the embodiment of the utility model adopts an incomplete tube shell structure. In some embodiments, the bagging device includes a left assembly and a right assembly. The left assembly includes a left shell assembly and a left pivot assembly, and the right assembly includes a right shell assembly and a right pivot assembly. The left shell assembly is pivotally mounted through the left pivot assembly, and has a swinging freedom in, for example, a horizontal plane. A reset device is also provided to put the left shell assembly and the right shell assembly in an initial position. In other words, when, for example, the left shell assembly swings due to an external force, the reset device accumulates force, and after the external force on the left shell assembly disappears, the left shell assembly is reset to the initial position. The right shell assembly adopts the same configuration as the left shell assembly, so that under the control of the reset device, the left shell assembly and the right shell assembly are close to each other at the outlet end of the bagging device, presenting an introduction cone structure. In some embodiments, the bagging device is configured as an upper shell assembly and a lower shell assembly. At this time, the upper shell assembly and the lower shell assembly are pivotally connected through a horizontal axis, and a second reset device is adapted to make the upper shell assembly and the lower shell assembly in an initial position, and in the initial position, the upper shell assembly and the lower shell assembly are close to each other at the outlet end of the bagging device to form an introduction cone structure. When bagging, due to the existence of the introduction cone structure, that is, the outlet end of the bagging device is equivalent to a constriction, which is conducive to the insertion of the cotton bag, making the bagging relatively easy. Due to the existence of the constriction, the automatic bagging with poor adaptability to the working conditions has better technical conditions. Because whether it is cotton bagging or plastic bagging, due to the existence of the introduction cone structure, even if the cotton bagging or plastic bagging has a poor opening degree, under the same opening degree conditions, the outlet end of the bagging device facing it is relatively small, and the bagging success rate will be relatively high. It should also be known that when a cotton bale passes through the bale cover, for example, a cotton cloth bag will be stretched open. After the cotton bale passes through the bale cover, the inner sides of the left shell assembly and the right shell assembly lose the support of the cotton bale and are reset to their original form with an introduction cone structure. Overall, the adaptability to cotton bale bagging is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 It is a schematic diagram of the three-dimensional structure of a cotton bag wrapping device in one embodiment.

[0062] Figure 2 It is a schematic diagram of the right assembly structure of the cotton bale wrapping device in one embodiment.

[0063] Figure 3 It is a schematic structural diagram of the right shell assembly of the cotton bale wrapping device in one embodiment.

[0064] Figure 4 It is a schematic diagram of the main structure of the right casing shell of the right casing assembly in one embodiment.

[0065] Figure 5 The figure is a schematic diagram of the structure of the right auxiliary housing provided with the right housing assembly in one embodiment.

[0066] Figure 6Schematic diagram of the three-dimensional structure of the swing arm assembly in an embodiment.

[0067] Figure 7 Schematic diagram of the main sectional structure of the swing arm assembly in an embodiment.

[0068] Figure 8 Schematic diagram of the adjusting base plate structure in an embodiment.

[0069] Figure 9 Schematic diagram of the supporting bag bracket structure of the cotton bale wrapping device in an embodiment.

[0070] Figure 10 Schematic diagram of the trolley structure in an embodiment.

[0071] Figure 11 Schematic diagram of the three-dimensional structure of the cotton bale wrapping device in an embodiment.

[0072] In the figure: 1. Guide rail, 2. Slide seat, 3. Slide plate, 4. Hexagon socket head cap screw, 5. Left connecting plate, 6. Left wrapping shell main body, 7. Left hinge, 8. Left auxiliary wrapper, 9. Buffer assembly, 10. Bag outlet, 11. Right wrapping shell main body, 12. Right auxiliary wrapper, 13. Adjusting screw, 14. Right buffer, 15. Right cushion block, 16. Right swing arm assembly, 17. Right strengthening arm, 18. Right adjusting base plate, 19. Fixing screw, 20. Bag inlet, 21. Right hinge, 22. Buffer assembly mounting hole, 23. Long hole, 24. Connecting piece, 25. Right connecting plate, 26. Connecting strengthening plate, 27. Cushion block mounting hole, 28. Rotating shaft assembly mounting hole, 29. Main lower side plate body, 30. Main bottom guide plate, 31. Main top guide plate, 32. Main side plate body, 33. Bag inlet guide cone, 34. Transition plate, 35. Auxiliary top plate, 36. Auxiliary side plate, 37. Strengthening arm mounting seat, 38. Strengthening plate, 39. Strengthening arm, 40. First connecting plate, 41. Round nut, 42. Connecting piece, 43. Swing arm assembly, 44. Swing arm assembly mounting seat, 45. Rotating sleeve, 46. Radial bearing, 47. Thrust bearing, 48. Fixed shaft, 49. Positioning shaft head, 50. Strengthening arm mounting hole, 51. Swing arm assembly mounting hole, 52. Positioning hole, 53. Counterbore, 54. Wheel raceway, 55. Motor reducer assembly, 56. Chain drive mechanism, 57. Mounting seat plate, 58. Main frame, 59. Driven sprocket, 60. Second connecting plate, 61. Connecting hole, 62. Carriage plate, 63. Frame, 64. Wheel, 65. Trolley, 66. Position of the bag pressing opening, 67. Wrapper. Detailed implementation manners

[0073] It should be known that in the technical field of cotton bale wrapping, there are definite front, back, left and right directions. Generally, the conveying direction of the cotton bale is taken as the front and back directions of the wrapper 67, corresponding to Figure 1The extending direction of the guide rail 1 shown in the figure, as well as the forward and backward direction of the bale determined by the bale inlet 20 and the bale outlet 10.

[0074] Generally in the mechanical field, the front-back direction is also called the longitudinal direction, the long direction or the head-tail direction. And it should be known that based on this reference system, for example, the direction in which the bale travels is the forward direction, and vice versa is the backward direction. Therefore, the bale outlet 10 corresponds to the head and front of the bale wrapper 67, and the bale inlet 20 corresponds to the tail and back of the bale wrapper 67.

[0075] Taking the bale support table as a reference to determine a reference plane, the direction perpendicular to the front-back direction within the reference plane is called the left-right direction. The left-right direction is often called the lateral direction in some applications. In addition, the left-right direction is also called the transverse direction and the width direction. In the embodiment of the present invention, the reference plane is a virtual concept, only used to illustrate the plane determined by the front-back, left-right directions, rather than a specific surface of a certain component. Although in the art, usually the support and guiding surface of the bale is used as the design basis, when the bale rotates at each work station, its support height may change slightly, but determining the reference plane based on the front-back, left-right directions does not affect the correct understanding of those skilled in the art.

[0076] Generally, the direction perpendicular to the reference plane is also called the height direction. The height direction does not represent the plumb direction. In the mechanical field, a relative concept is more often used to represent the height, especially when corresponding to up and down.

[0077] In Figure 1 and Figure 11 In the exemplified structure, the bale wrapper 67 of the bale wrapping device has a movement form in the front-back direction, but it does not mean that this configuration must be adopted in the embodiment of the present invention. It should be known that the wrapping movement itself is also a relative movement. In other words, when the bale wrapper 67 is in a fixed position in the front-back direction, for example, for bale bagging, it can move from front to back under the carrying of the bagging mechanism to achieve bagging. Taking this as an example, in the embodiment of the present invention, it focuses on clarifying the principle and composition of the present invention in an exemplary manner. The protection scope of the present invention is not limited to these embodiments.

[0078] A bale wrapping device according to an embodiment of the present invention includes a wrapping support and a bale wrapper 67 installed on the wrapping support. The support body of the wrapping support is generally a rigid frame structure, and generally is equipped with legs or other support components that can support the rigid frame structure to a predetermined height.

[0079] The bag support generally provides a horizontal bag platform, but in some embodiments, the bag platform may have a certain slope. In such embodiments, the bag platform generally moves downward gradually in the bag pushing direction to reduce the burden of the bag pushing mechanism. Obviously, the slope should ensure that the friction angle of the cotton bale on the bag platform is greater than the pressure angle, that is, it should ensure that the cotton bale is stationary on the bag platform without being pushed by the bag pushing mechanism.

[0080] It should be noted that in the mechanical field, a platform does not necessarily provide a strict plane, but is merely a naming method for a given structure.

[0081] As a conventional configuration, the bag wrapping device 67 is located on the bag wrapping support and has a bag inlet 20 and a bag outlet 10 along the bag pushing direction. The bag pushing direction here is the front-to-back direction of the cotton bag wrapping device.

[0082] It should be known that the cotton bale is roughly a rectangular parallelepiped structure. When wrapping the bale, the long side of the cotton bale is generally used to determine the direction of pushing the bale, that is, the front-back direction. The shell of the corresponding wrapping device 67 basically determines a channel with a roughly rectangular cross section or an equivalent rectangular channel.

[0083] At the same time, it should be known that the guidance of the cotton bale in the shell of the bale cover 67 does not require the cotton bale to be closely attached to the inner wall of the shell, nor does it require the shell to provide a support surface that can completely match the current bottom surface of the cotton bale. In more applications, the cotton bale usually passes through the bale cover 67 by basically holding and guiding the bale cover 67 from the left and right sides. It should be known that in the process of the cotton bale passing through the traditional bale cover 67, in addition to the bottom surface contacting the bale cover 67, the cotton bale often contacts one of the left and right side walls, but rarely contacts both side walls at the same time. However, in some embodiments of the present utility model, the cotton bale contacts the left and right side walls of the bale cover 67 to open the middle front part or the front part of the bale cover 67.

[0084] In some other embodiments of the present invention, the cotton bale will contact the top wall of the wrapper 67 during the process of passing through the wrapper 67 to open the middle front part or the front part of the wrapper 67.

[0085] In a preferred embodiment, when the cotton bale passes through the bale wrapper 67, the cotton bale will also come into contact with the top wall and the left and right side walls of the bale wrapper 67, thereby expanding the middle front part or the front part of the bale wrapper 67 in three directions.

[0086] As can be seen from the above description, in the embodiments of the present utility model, it is necessary to apply a force to the middle front part or the front part of the wrapper 67 that is in an open state by means of a bale of cotton. In the initial state, the middle front part or the front part of the wrapper 67 is in a contracted state, that is, the initial state, so as to form an inlet cone structure. The requirements for the opening accuracy of the cotton bale wrapper itself and the alignment accuracy between the opened cotton bale wrapper and the bale outlet 10 are relatively low, and it has better adaptability. At the same time, the success rate of wrapping the bale will also be improved. And during the wrapping process, because the middle front part or the front part of the wrapper 67 is in a contracted state, the contact between the wrapper 67 and the cotton bale wrapper is relatively small in most stages of the wrapping stroke, and the generated frictional force is also relatively small, making it easier to achieve wrapping.

[0087] Adapted to some embodiments, such as Figure 1 As shown, the housing of the wrapper 67 has a left housing assembly and a right housing assembly; in other embodiments, the wrapper 67 has an upper housing assembly and a lower housing assembly to achieve different selections and applications.

[0088] It should be noted that when the inlet cone structure is generated based on contraction, the cross-sectional area of the front end of the inlet cone structure should be less than the cross-sectional area of the main body of the traditional wrapper 67 in principle, regardless of whether the inlet cone structure is horizontally contracted, vertically contracted (the previous two are called unidirectional contraction) or horizontally and vertically contracted. Under this condition, for example, a cotton wrapper, compared with a plastic wrapper, the folding line has less influence on the bag body. In other words, in some operations, for example, when the upper bag surface at the bag mouth of the cotton wrapper is pulled up, based on the left and right pulling, the bag mouth can be opened to adapt to the situation of unidirectional contraction, and a relatively simple example of the contraction method can be better utilized. Since how to open the bag mouth and the opening method do not belong to the composition of the present utility model, they will not be elaborated here.

[0089] Among them, based on the macroscopic division of the housing, the wrapper 67 with a left housing assembly and a right housing assembly can at least achieve horizontal contraction. It should be noted that for the left housing assembly and the right housing assembly, they can be further decomposed into smaller movable units, so as to achieve vertical contraction on the basis of left and right contraction.

[0090] It should be noted that the vertical contraction only refers to the change in the scale of the wrapper 67 in the vertical direction, rather than the opposite movement of the given upper part and lower part in the middle front part of the wrapper 67 at the same time.

[0091] When the housing has a left housing assembly and a right housing assembly, the wrapper 67 is configured as a double pivot structure, that is, a left pivot assembly is configured for the left housing assembly, and a right pivot assembly is configured for the right housing assembly. The left pivot assembly is located on the wrapping bracket. In some embodiments, such as Figure 1In the illustrated example, the left pivot assembly is located on the left side of the left housing assembly, and the two are connected so that the left housing assembly has the freedom to swing within a predetermined reference plane.

[0092] The predetermined reference plane here is the plane that supports the cotton bale when pushing the bale. In most embodiments, this plane is a horizontal plane, and in some embodiments, it can be a plane that forms a certain angle with the horizontal plane, such as the plane that satisfies the condition that the friction angle is greater than the pressure angle as mentioned above. However, even if a plane that forms a certain angle with the horizontal plane is used, the angle is controlled as much as possible below 15°.

[0093] As mentioned above, when the cotton bag is wrapped, the bag opening of the cotton bag is wrapped backward on the wrapping device 67 from the bag outlet 10 of the wrapping device 67. In order to facilitate the design and shrinkage control, for example, the left pivot assembly is offset to the rear side of the left shell assembly as much as possible. Figure 1 In the illustrated structure, the left pivot assembly is located close to the bale inlet 20. Since the bale inlet 20 is usually wide, it is convenient for the introduction of cotton bales. For example, the left pivot assembly is basically located at the rearmost part of the left shell assembly when the wide opening is left open.

[0094] However, it should be understood that, as a component of the left housing assembly, for example, the portion of the left housing assembly corresponding to the wide mouth may also serve as a portion connected to the left pivot assembly.

[0095] At the same time, it should be known that the expansion and contraction based on the pivot is expressed in the form of the same opening angle condition, the farther away from the pivot, the greater the amount of opening. In other words, the outlet 10 is the part with the largest amount of activity or the most dramatic change in cross-sectional area, so the bag cover 67 is a wedge-shaped structure in the initial state. It should be known that the main body of the traditional bag cover 67 (excluding the part of the inlet 20) can usually be simply understood as a rectangular tube. Based on the inventive concept of contraction, in the embodiment of the utility model, the bag cover 67 is in the initial state. The bag cover 67 presents a wedge-shaped structure with a small outlet 10 and gradually increasing backwards, which is conducive to the smooth insertion of the cotton bag. Correspondingly, the bag cover 67 only needs to change to the cross-sectional area corresponding to the traditional rectangular tube to meet the cross-sectional changes required for the cotton bale to pass, and does not need to be too large. This also determines the angle range of the left shell assembly and the right shell assembly corresponding to the change of the bag cover 67 from the initial state to the state suitable for the cotton bale to pass.

[0096] About the right pivot assembly, based on the same consideration as the left pivot assembly, it is also located on the bag bracket, and under ideal conditions, it is symmetrical with the left pivot assembly about the left and right mid-plane of the bag device 67. At the same time, it should also be known that the bag device 67 is also a left-right symmetrical component under ideal conditions.

[0097] Correspondingly, the right pivot assembly is used for pivoting the right housing assembly, so that the right housing assembly has the freedom to swing within a predetermined reference plane.

[0098] It should be known that in the mechanical field, rotation is usually divided into planetary rotation and oscillatory rotation, and the rotation angle range of oscillatory rotation is usually less than 360 degrees. In the embodiments of the present utility model, the rotation angle ranges of the left housing assembly and the right housing assembly obviously do not need to be too large, which has been described above. In particular, it should be noted that in the ideal state, the expanded state of the wrapper 67 is such that the side wall (left side wall) of the left housing assembly and the side wall (right side wall) of the right housing assembly are substantially parallel. However, considering that it is difficult to achieve strict dimensional consistency after cotton bale packing, when the wrapper 67 is in the expanded state, there may still be a relatively small main included angle between the left side wall and the right side wall, which mainly takes into account the width range of the cotton bale and is generally controlled within 5°.

[0099] Oscillatory rotation generally requires providing constraints to limit its rotation angle range. In some embodiments, the left housing assembly and the right housing assembly can form constraints with each other, that is, for example, one rotates counterclockwise and the other rotates clockwise in a horizontal plane, and a stop can be generated based on mechanical contact with each other.

[0100] A reset device is further provided to make the initial state of the wrapper 67 relatively stable and provide a force to reset the left housing assembly and the right housing assembly.

[0101] Under the action of the reset device, especially as Figure 1 and Figure 2 shown in, the reset force provided by, for example, the right buffer 14 to the right housing assembly, and the reset force provided by the corresponding left buffer may have a certain difference. Under this difference condition, if the left housing assembly and the right housing assembly form constraints with each other, it will make the wrapper 67 asymmetric left and right in the initial state. Therefore, in the preferred embodiments, the reset positions of the left housing assembly and the right housing assembly can be controlled by additional constraints to achieve stop.

[0102] In view of the fact that limiting the rotation of rotating components is one of the most common limiting methods in the mechanical field, a stop plate can be provided between, for example, the left housing assembly and the right housing assembly. The stop plate and the bottom plates of the left housing assembly and the right housing assembly can be assembled to form a plate body that jointly supports the cotton bale. At this time, the stop plate forms a limit to the bottom plate of the left housing assembly or the right housing assembly through its left and right edges, thus forming a plate-type constraint. At this time, the lower part of the stop plate is suspended within the wrapping range. In other words, the stop plate should be a rear-fixed structure.

[0103] Another common constraint is a stop pin. For the left housing assembly and the right housing assembly, the relatively opposite plate edges are the inner plate edges, but it is not suitable to set a stop pin on the inner plate edges, otherwise it will affect wrapping. And based on the pivot assembly, the housing assembly forms a lever mechanism. Therefore, a stop pin can be provided on the outside of the part of the housing assembly located behind the pivot assembly. For example, in Figure 1A stop pin is provided on the skateboard 3 shown in the figure to limit the outer side of the rear part of the corresponding shell assembly, forming a stop pin type limit. At this time, it is only necessary that the stop pin does not protrude from the corresponding bottom plate surface.

[0104] In some embodiments, the restraint can be provided on the outer side of the wrapper 67 in a pulling manner. It should be known that even for the traditional wrapper 67, its bag inlet 20 is a wide opening. For example, the left shell assembly formed based on the left pivot assembly is essentially a lever mechanism. The contraction of the bag outlet 10 corresponds to the opening of the bag inlet 20. This can be achieved by setting a cable, for example, to limit the opening degree of the wide opening on the upper surface of the top plate of the wide opening.

[0105] Since the limitation of rotating components is one of the most common limitations in the mechanical field, it will not be listed here.

[0106] In the following text, for the convenience of description, for the left pivot assembly and the right pivot assembly, they are collectively referred to as the pivot assembly; and for the left shell assembly and the right shell assembly, they are collectively referred to as the shell assembly. Based on this, it is not only concise but also not easy to cause ambiguity.

[0107] From the above description, it can be seen that the force causing the wrapper 67 to open comes from the force of the pusher mechanism pushing the cotton bale forward, and the component force perpendicular to the side plate of the shell assembly generated by the contact between the cotton bale and the shell assembly of the wrapper 67. When the cotton bale passes through the wrapper 67, the force for resetting the wrapper 67 comes from the reset device, which is used to reset the wrapper 67 to the initial position, so as to enter the next bagging cycle. The principle is that when the wrapper 67 is in the initial state, that is, when the left shell assembly and the right shell assembly are in the initial position, the left shell assembly and the right shell assembly approach each other at the outlet end of the wrapper 67 and are in a contracted state, forming the wedge-shaped structure as described above, and having an inlet conical surface, which is beneficial to the insertion of the cotton bale into the bag.

[0108] As an alternative, that is, in some embodiments, the housing of the wrapper 67 is divided into an upper shell assembly and a lower shell assembly. Among them, the upper shell assembly can be used as a movable shell assembly as a whole, and the lower shell assembly can be used as a static shell assembly relative to the upper shell assembly. Under this condition, the two side plates at the tail end of the upper shell assembly can be directly pivotally connected to the corresponding two side plates of the lower shell assembly by using two end shafts, and the two end shafts form a horizontal axis.

[0109] Different from the example using the left shell assembly and the right shell assembly, when using the upper shell assembly and the lower shell assembly, the reset of the wrapper 67 can be achieved by relying on the gravity of the upper shell assembly.

[0110] In view of the fact that when the wrapper 67 is divided into an upper shell assembly and a lower shell assembly, it is not necessary for the entire upper shell assembly to be used for the implementation of constructing the guiding cone structure. In some embodiments, the upper shell assembly has a static part at the rear and a movable part at the front. The movable part is pivotally connected to the static part through a horizontal axis or the movable part is pivotally connected to the lower shell assembly through a horizontal axis. Similarly, this structure does not require a dedicated reset device for the movable part, and the reset can be achieved by relying on gravity.

[0111] Based on the concept of the present utility model, the upper shell assembly and the lower shell assembly approach each other at the outlet end of the wrapper 67 to form a guiding cone structure.

[0112] The guiding cone structure has been relatively detailedly described above and will not be elaborated here.

[0113] In a preferred embodiment, both the left shell assembly and the right shell assembly include a main housing and a sub-housing. The sub-housing is a movable housing relative to the main housing. It should be known that for the wrapper 67, it has a top plate, a bottom plate, and side plates. For the aforementioned main housing and sub-housing, when realizing the function of expanding and contracting up and down, the sub-housing should have a part of the top plate, and the main housing should have a bottom plate, side plates, and another part of the top plate. The expansion and contraction up and down are realized based on the pivotal mounting of a horizontal axis. The aforementioned part of the top plate and the other part of the top plate can be installed by means of hinge mounting through a horizontal hinge and are reset by gravity.

[0114] For the convenience of understanding, the following will give an exemplary description in combination with the structures illustrated in the accompanying drawings of the specification.

[0115] Figure 4 is a schematic structural diagram of the main housing of the right shell assembly in an embodiment, and Figure 3 is a schematic structural diagram of the right shell assembly in an embodiment. As can be seen from the figure, a rotating shaft assembly mounting hole 28 is provided at the rear of the main housing of the right shell assembly for connecting with the right pivot shaft assembly.

[0116] From Figure 4 it can be seen that the right shell assembly has a main bottom guide plate 30, that is, the bottom plate. The outer edge of the main bottom guide plate 30, that is, the right edge, is turned up to fit with a main lower side plate body 29 and a main side plate body 32. The height of the main side plate body 32 is greater than that of the main lower side plate body 29, so that a notch is formed at the front of the right shell assembly. At the same time, the upper edge of the main side plate body 32 is turned left to form a main top guide plate 31, that is, the top plate.

[0117] Figure 4 In, the notch extends relatively large in the front-back direction of the right shell assembly and occupies the middle and front parts of the right shell assembly. However, it should be known that considering that after the cotton bale bag is sleeved on the wrapper 67 based on guiding, even if the bag mouth crosses the guiding cone structure, only the friction is increased, but the sleeving requirements can still be met. Therefore, the notch can be provided only at the front of the right shell assembly.

[0118] Figure 3 In it, the right sub - sleeve 12 forming the sub - housing is hinged to the main housing through the right hinge 21. Obviously, the hinge shaft of the right hinge 21 is a horizontal shaft and is used for Figure 4 the hinge installation between the leading edge of the main top guide plate 31 and Figure 5 the trailing edge of the sub - top plate 35 in it.

[0119] Based on the same consideration of the expansion and contraction between the left - housing assembly and the right - housing assembly as described above, the main body of the traditional wrapper 67 suitable for cotton bales to pass through is generally of a rectangular - tube structure. Correspondingly, the right sub - sleeve 12 should have a certain angular range. Obviously, one of the angular positions is limited. For example, the limit generated by the direct or indirect direct contact between the right sub - sleeve 12 and the main lower side plate body 29. The upward angular stop does not need to be specifically set. In any case, in the working state, due to the cotton bale passing through the wrapper 67, the angle at which the right sub - sleeve 12 flips up will not be too large. Especially when the current cotton - bale bag has been sleeved on the wrapper 67 and the cotton - bale bag holds the wrapper 67, it can also prevent the right sub - sleeve 12 from flipping up too high.

[0120] For the sake of convenient distinction, the guiding - cone structure formed based on the horizontal hinge is called the sub - guiding - cone structure. With the help of the sub - guiding - cone structure and the guiding - cone structure, expansion and contraction can be realized in two mutually perpendicular directions of the cross - section of the wrapper 67, so as to have better adaptability to the cotton - bale bag.

[0121] Regarding the size of the sub - housing, one is the scale in the front - to - back direction, that is, its length. The smaller the length, the larger the slope of the formed sub - guiding - cone structure will be, and vice versa. In the embodiment of the present utility model, a sub - housing with a relatively large length is preferably used, so that the slope of the sub - guiding - cone structure is relatively small, which is beneficial for the smooth sleeving of the cotton - bale bag. However, a relatively short sub - housing is not excluded. Therefore, comprehensively considering, the length of the sub - housing in the front - to - back direction is 0.40 - 0.75 times the total length of the wrapper housing.

[0122] Correspondingly, the sub - housing has sub - side plates and a sub - top plate connected to the upper edge of the sub - side plates; and the main housing has a main lower side plate at the notch, and the rest has a main side plate integrated with the main lower side plate, a main top plate connected to the upper edge of the main side plate, and a bottom plate; the bottom plate is correspondingly connected to the lower edges of the main side plate and the main lower side plate; correspondingly, the hinge installation between the sub - housing and the main housing is the hinge installation between the sub - top plate and the corresponding main top plate. Regarding the bottom plate, in any case, when the cotton bale passes through the wrapper 67, it will come into contact with the bottom plate. In some embodiments, the bottom plate is made of, for example, a stainless - steel sliding plate. In other embodiments, a wear - reducing layer is formed by spraying, for example, polytetrafluoroethylene coating on the steel bottom plate. In still other embodiments, the part of the bottom plate in contact with the cotton bale can also be constructed with a flow - bar to change the sliding friction into rolling friction.

[0123] Figures 1 - 5 In the embodiment, there are arc-shaped or flat transition plates between the auxiliary side plate and the auxiliary top plate, and between the main lower side plate and the bottom plate, so as to further improve the success rate of bagging. Especially when the upper bag surface of the bag opening is lifted, if the parts of the bag opening are less directly close to the left and right edges of the bag opening, the upper bag surface may partially collapse. If the arc-shaped transition plate is used, the interference of the cotton bag on the bagging device 67 can be reduced, thereby improving the success rate of bagging.

[0124] Considering that when the cotton bale completely passes through the bale holder 67, the sub-shell loses the support of the cotton bale and falls, thereby generating a rigid collision with the main shell. In order to reduce the noise generated by the collision and the plastic deformation caused thereby, a first buffer device is provided on the edge of the main shell for supporting the sub-shell where the notch is determined. The main shell supports the sub-shell through the first buffer device. When the sub-shell loses the support of the cotton bale and falls, it will directly collide with the first buffer device. The first buffer device provides buffering to reduce the noise generated by the falling of the sub-shell and the possible plastic deformation caused by the collision.

[0125] If the first buffer device is damaged, it can be replaced. For the auxiliary shell or the main shell, it is relatively difficult to replace. Simply replacing the first buffer device is low-cost and relatively convenient.

[0126] In some embodiments, the first buffer device comprises:

[0127] The outer guide plate is fixed on the outside of the main shell, and the part of the outer guide plate extending upward from the notch is used to guide the outer wall surface of the auxiliary side plate, that is, when the auxiliary top plate ascends to the highest point in the working state, the auxiliary top plate will not escape from the guidance of the outer guide plate.

[0128] A first buffer pad is provided, which is arranged at the upper edge of the corresponding position of the notch. The first buffer pad is supported by the main shell, but due to the buffering, the rigid main shell will not be damaged. In addition, the first buffer pad can also be mechanically connected to the outer guide plate, such as riveting. This mechanical connection is mainly used to maintain the position of the first buffer pad, and it does not need to bear too much force.

[0129] The outer guide plate is subjected to less force and is not prone to failure. The main part that needs to be replaced is the first buffer pad, which is generally made of rubber plates and has a relatively low cost.

[0130] Furthermore, the first buffer device further comprises:

[0131] The inner guide plate is fixed on the inner side of the main shell and aligned with the corresponding outer guide plate. The part of the inner guide plate extending upward from the notch guides the inner wall of the auxiliary side plate, that is, the auxiliary side plate will not escape the guidance of the inner guide plate even when the maximum upward stroke is in the working state.

[0132] Furthermore, the first buffer pad is clamped between the inner guide plate and the outer guide plate, which is conducive to the rapid replacement of the first buffer pad.

[0133] The inner guide plate and the outer guide plate can be connected by bolts or rivets. Figure 3 The buffer assembly mounting hole 22 shown in the figure is fixed on, for example, the right sleeve body 11, preferably by riveting.

[0134] The position of the first buffer device, mainly its position in the front-to-back direction of the notch, should not be too far forward or too far back. When it is too far back, the first buffer pad will be subjected to relatively large force and will be easily damaged. If it is too far forward, the inner guide plate and the outer guide plate need to be longer, especially the inner guide plate, which is easy to come into conflict with the cotton bale and should be relatively short. Therefore, in the front-to-back direction, the first buffer device is located in the middle of the notch.

[0135] See also Figure 3 In the illustrated structure, when the cotton bale fully opens the bale container 67, the main part of the bale container 67 is equivalent to a rectangular tube under ideal conditions, and there is a given distance between the right auxiliary sleeve 12 and the main lower side plate 29 at the notch, and the given distance accounts for about one seventeenth of the height of the side wall of the bale container 67. However, it should be known that in order to ensure that the cotton bale is reliably guided when passing through the bale container 67, for example, only one of the right auxiliary sleeve 12 and the main lower side plate 29 can effectively guide the cotton bale. In other words, the given distance can be relatively large, for example, it can account for 75% of the height of the side wall of the bale container 67, and the remaining part is mainly set as the main lower side plate 29 for guiding the cotton bale. At this time, the right auxiliary sleeve 12 only retains a small part of the auxiliary side plate 36 to meet the need to open the cotton bale bag. This small part of the auxiliary side plate 36 accounts for 10% of the height of the side wall of the bale container 67, which is sufficient to meet the need to open the cotton bale bag.

[0136] In a more preferred embodiment, the auxiliary shell body should not be too small. Therefore, corresponding to the side wall of the shell assembly, the auxiliary shell body occupies not less than 35% of the height of the side wall. However, as mentioned above, sufficient height is left for the main lower side plate 29 as much as possible to facilitate reliable guidance of the cotton bale. Therefore, the height of the auxiliary shell body should not be greater than 75% of the height of the shell assembly. At this time, under the condition of satisfying the reliable guidance of the cotton bale, the given distance needs to be compressed to the smallest possible size, for example, the aforementioned one-seventeenth.

[0137] Another point needs to be noted. The given distance also determines the movement range of the auxiliary housing. Obviously, the larger the given distance, the larger the movement range of the auxiliary housing. However, it should not be too large, as it would be meaningless. In a preferred embodiment, the given distance is preferably not greater than 35% of the height of the housing assembly, but also not less than 5% of the height of the housing assembly. Otherwise, the slope of the corresponding inlet cone structure is too small, and the structure of the inlet cone will lose its practical value.

[0138] Regarding the load-bearing method of the wrapper 67, in order to meet the wrapping requirement, there is obviously no support on the lower surface of the front part of the wrapper 67. Otherwise, the cotton bale bag cannot be put on. In other words, the wrapper 67 mainly bears the load by the corresponding pivot assembly.

[0139] In addition, the standard weight of a cotton bale is 227 ± 10 kg. Most of the wrapper 67 is in a cantilever state, which will inevitably make the load-bearing environment of the wrapper 67 worse. This may be the main reason for the widespread use of the fixed wrapper 67 at present.

[0140] In the embodiment of the present utility model, on the one hand, the provided pivot assembly needs to be fully checked for strength and stiffness. On the other hand, in Figure 6 and Figure 7 the illustrated structure, the pivot assembly includes a fixed shaft 48 and a rotating sleeve 45 installed on the fixed shaft 48 through bearings. The fixed shaft 48 is fixed relative to the wrapper 67, that is, the fixed shaft 48 can be directly fixed on the wrapping bracket, or can be fixed on the slide plate 3 as shown in Figure 1 .

[0141] The fixed shaft 48 has a certain height, and its height can be approximately equivalent to the height of the wrapper 67. The rotating sleeve 45 is fixedly connected to the outside of the housing assembly. The connecting body 42 for connecting the rotating sleeve 45 and the housing assembly is evenly connected within the entire length of the rotating sleeve 45, or can also be connected at multiple points. The corresponding connection points are axially distributed on the rotating sleeve 45.

[0142] From Figure 1 , Figure 2 and Figure 11 the illustrated structure, it can be seen that the main body of the housing assembly extends forward cantilever. In order to further improve the bending resistance of the pivot assembly, in Figure 1 and Figure 2 the illustrated structure, a right reinforcing arm 17 is further provided at the rear side of, for example, the right rotating arm assembly 16. The upper end of the right reinforcing arm 17 is fixedly connected to the upper end of the fixed shaft 48.

[0143] In some embodiments, for example, two right reinforcing arms 17 can also be provided, and one is provided in front of and behind the fixed shaft 48 respectively.

[0144] The configuration of the right pivot assembly is equally applicable to the left pivot assembly, and the configuration of the left pivot assembly will not be elaborated here.

[0145] Regarding the bearings used for the assembly of the swivel sleeve 45 on the fixed shaft 48, in Figure 7 the illustrated structure, there are two pairs of bearings. One pair is the thrust bearing 47, and the other pair is the radial bearing 46. The corresponding bearings in the two pairs are arranged one above and one below at the upper and lower parts of the fixed shaft 48.

[0146] In some embodiments, angular contact bearings can also be directly adopted, as well as tapered roller bearings more suitable for heavy loads.

[0147] Although the shell assembly of the wrapper 67 is generally made of steel plates, as mentioned above, the pivot assembly bears a relatively large load, and the part where the shell assembly is connected to the pivot assembly must also bear a relatively large load. Therefore, in the preferred embodiments, it is necessary to locally strengthen the part of the shell assembly used for connecting to the pivot assembly.

[0148] In some embodiments, as Figure 3 shown and visible in the figure, a connecting reinforcing plate 26 is provided on the outer side of the right sleeve body 11, thickening the local part of the shell assembly in a substantially overlapping manner. The connection between the connecting reinforcing plate 26 and the shell assembly is preferably welded.

[0149] In addition, it can be seen from Figure 3 that the connecting reinforcing plate includes two parts. One part is directly stacked on the side plate of the shell assembly, and the other part is stacked on the top plate of the shell assembly. These two parts are of an integral structure, so as to reliably strengthen the local part of the shell assembly.

[0150] In Figure 1 and Figure 2 the illustrated structure, the left shell assembly and the right shell assembly are provided with limiting components on the front side of the corresponding pivot assemblies to limit the maximum rotation angle of the corresponding shell assemblies.

[0151] The limiting of the shell assembly can be rigid limiting. However, it should be known that there is also a certain margin in the size of the cotton bale. To adapt to this margin, the component used for limiting the shell assembly can be a flexible limiting component, which is configured as a second buffer device, such as Figure 1 the right buffer 14 shown in

[0152] The right buffer 14 is placed horizontally, and its actuating end abuts against the right side surface of the right shell assembly.

[0153] As described above, in some embodiments of the present utility model, the wrapper 67 can be fixedly arranged on the wrapper support. Here, the fixed arrangement means that the position of the wrapper 67 is fixed in the front-rear direction of the wrapper support. The wrapper 67 has the ability to change its state in the embodiments of the present utility model. In addition, in some other embodiments of the present utility model, the wrapper 67 can have freedom in the front-rear direction to achieve wrapping by driving the wrapper 67.

[0154] Correspondingly, the wrapper 67 is installed on the wrapper support through a slide plate assembly; the wrapper support is provided with a guide rail 1 that forms a guide rail pair with the slide plate assembly; and a driving device is further provided to drive the wrapper 67 to move along the guide rail. Obviously, the guiding direction of the guide rail 1 is the front-rear direction, that is, the wrapper 67 has a movement form in the front-rear direction based on the guiding of the guide rail 1, and the wrapping action can be completed by means of this movement form.

[0155] Based on the foregoing description, it can be known that the movement form of the wrapper 67 as an active component to achieve wrapping is a linear motion. Linear motion is one of the most common motion forms in the mechanical field, and there are relatively many driving devices that can be selected. For the convenience of description, they are classified into linear drive mechanisms or linear drive components.

[0156] Regarding the linear drive mechanism, a power machine needs to be additionally configured, while for the linear drive component, it is itself a power machine. Among them, the linear drive mechanism is mainly selected from a synchronous belt mechanism, a transmission chain mechanism, a lead screw and nut mechanism, or a gear and rack mechanism; and the linear drive component is mainly selected from a cylinder, a hydraulic cylinder, a linear motor, or an electric push rod.

[0157] In Figure 9 the exemplified structure, a chain drive mechanism is used to drive the slide plate 3. As Figure 3 can be seen, the upper chain side of the chain drive mechanism is arranged in the front-rear direction of the wrapper support. A mounting seat plate 57 is installed on the upper chain side, and the mounting seat plate 57 is connected to the bottom surface of the slide plate 3 by, for example, screws. The chain drive mechanism is mainly used to provide the pulling force for the reciprocating movement of the slide plate 3.

[0158] The synchronous belt mechanism is similar to the transmission chain mechanism. Another example is the gear and rack mechanism. The rack can be installed on the slide plate 3, and the gear and the power machine are installed on the wrapper support. The reciprocating movement of the slide plate 3 can be promoted by the meshing of the gear and the rack.

[0159] For other linear drive mechanisms, their configurations are relatively common in the mechanical field, and how to combine them with the slide plate 3 will not be listed one by one.

[0160] Regarding a cylinder as a linear drive unit, its seat end can be fixed or hinged on the wrapper support, and the push rod is hinged or fixedly connected to the lower surface of the slide plate 3. The typical characteristics of the cylinder are fast response speed, no pollution, and relatively simple stroke control.

[0161] For other linear drive components, the same basic considerations apply, which will not be listed one by one here.

[0162] If the wrapper 67 has a forward and backward movement stroke, when it moves forward to complete the wrapping of the bale on the wrapper 67, and then the bale needs to enter the bale bag through the wrapper 67, there may be a gap left behind the forward-moving wrapper 67. To facilitate connection with the conveying platform smoothly, a trolley 65 is connected to the rear side of the slide plate assembly to continue the bale receiving platform when the wrapper 67 moves forward in place.

[0163] When the trolley 65 returns to the initial position, the trolley 65 can be hidden under the bale delivering platform. Under this condition, there will be some height difference between the bale delivering platform and the trolley 65, but it does not affect the reliable conveyance of the bale.

[0164] In some embodiments, the trolley 65 runs on the guide rail 1 or the lane provided on the wrapper support, and this lane can be the Figure 9 wheel raceway 54 as shown.

[0165] In a preferred embodiment, an adjusting base plate is provided for each of the left housing assembly and the right housing assembly, such as the Figure 1 right adjusting base plate 18 as shown, for fine-tuning the positions of the left housing assembly and the right housing assembly in the left-right direction, so as to have better adaptability to the bale.

[0166] The corresponding housing assembly is installed on the adjusting base plate through the corresponding pivot assembly.

[0167] The adjusting base plate is adjusted transversely on the slide plate assembly and is equipped with a locking device to lock the adjusting base plate after the adjustment is in place.

[0168] Figure 8 Shown is an example of an adjusting base plate. The two sides shown in the figure can be used as constrained sides. The slide plate 3 provides parallel transverse side frames to limit the adjusting base plate between the two transverse side frames. The three oblong holes 23 shown in the figure are the assembly holes of the adjusting base plate on the slide plate 3, and the long direction of the oblong holes 23 is the transverse direction of the wrapper 67. As mentioned above, the adjustment of the adjusting base plate is mainly fine-tuning. Therefore, the length of the oblong holes 23 is controlled within 8 cm to meet the usage requirements, and in a more preferred embodiment, it can be controlled within 5 cm.

[0169] In addition, as Figure 1As shown in the figure, in addition to the fixing screw 19 for adjusting the assembly of the bottom plate on the sliding plate 3, there is also a pair of adjusting screws 13. As described above, since the main body of the wrapper 67 is generally in a forward overhanging state, when adjusting the bottom plate, the fixing screw 19 is not completely loosened to prevent the wrapper 67 from tipping over. Therefore, when adjusting, the fixing screw 19 is slightly loosened, for example, turned half a turn or one turn from the self-locking state, and then the adjustment of the bottom plate is achieved by using the thread thrust of the adjusting screw 13. After the adjustment is in place, lock the fixing screw 19.

[0170] In order to facilitate the continuous pushing of the bag pushing mechanism, a predetermined distance is left between the top plate of the left housing assembly and the top plate of the right housing assembly for the bag pushing mechanism to intervene in the wrapper 67 from the upper side.

Claims

1. A cotton bag wrapping device, characterized in that: include: Kit bracket; A bagging device is located on the bagging support and has a bag inlet and a bag outlet, the bag inlet and the bag outlet determine the front and rear directions, and the shell of the bagging device has a left shell assembly and a right shell assembly or an upper shell assembly and a lower shell assembly; If the shell has a left shell assembly and a right shell assembly, the cotton bag wrapping device further includes: A left pivot assembly, located on the kit bracket, is used for pivoting the left housing assembly so that the left housing assembly has a swinging freedom within a predetermined reference plane; A right pivot assembly, located on the kit bracket, is used for pivoting the right housing assembly so that the right housing assembly has a swinging freedom within a predetermined reference plane; A reset device is used to place the left shell assembly and the right shell assembly in an initial position, and in the initial position, the left shell assembly and the right shell assembly are close to each other at the outlet end of the packager to form an introduction cone structure; If the shell has an upper shell assembly and a lower shell assembly, the upper shell assembly and the lower shell assembly are pivoted at the inlet end by a horizontal axis, or the upper shell assembly has a static part located at the rear and a movable part located at the front, and the movable part and the static part are pivoted by a horizontal axis or the movable part and the lower shell assembly are pivoted by a horizontal axis; based on gravity, the upper shell assembly and the lower shell assembly are in an initial position, and in the initial position, the upper shell assembly and the lower shell assembly are close to each other at the outlet end of the packager to form an introduction cone structure.

2. The cotton bag wrapping device according to claim 1, characterized in that: Both the left and right housing assemblies include: A main housing connected to the corresponding pivot assembly, with a notch formed in the upper part or the middle upper part of the front part or the middle front part of the main housing; and The auxiliary shell is hinged to the main shell through a horizontal hinge, and in the initial state, the auxiliary shell is supported on the main shell, so that the corresponding shell assembly has an auxiliary introduction cone structure, and the auxiliary shell is supported by the cotton bale when the cotton bale passes through the bale holder.

3. The cotton bag wrapping device according to claim 2, characterized in that: The length of the auxiliary shell in the front-to-back direction is 0.40 to 0.75 times the total length of the shell of the packager.

4. The cotton bag wrapping device according to claim 2 or 3, characterized in that: The auxiliary housing comprises an auxiliary side plate and an auxiliary top plate connected to the upper edge of the auxiliary side plate; The main shell has a main lower side plate at the notch, and the rest of the main shell has a main side plate integrated with the main lower side plate, a main top plate connected to the upper edge of the main side plate, and a bottom plate; the bottom plate is correspondingly connected to the lower edges of the main side plate and the main lower side plate; Correspondingly, the hinged connection between the auxiliary shell and the main shell is the hinged connection between the auxiliary top plate and the corresponding main top plate.

5. The cotton bag wrapping device according to claim 4, characterized in that: There are arc-shaped or flat transition plates between the secondary side plates and the secondary top plates, and between the main lower side plates and the bottom plates.

6. The cotton bag wrapping device according to claim 2, characterized in that: A first buffer device is provided on the edge of the main shell body that defines the notch and is used to support the auxiliary shell body, and the main shell body supports the auxiliary shell body through the first buffer device.

7. The cotton bag wrapping device according to claim 6, characterized in that: The first buffer device comprises: An outer guide plate is fixed on the outer side of the main shell, and the portion of the outer guide plate extending upward from the notch is used to guide the outer wall surface of the auxiliary side plate; The first buffer pad is arranged at the upper edge of the corresponding position of the notch.

8. The cotton bag wrapping device according to claim 7, characterized in that: The first buffer device also includes: The inner guide plate is fixed to the inner side of the main shell and aligned with the corresponding outer guide plate, and the portion of the inner guide plate extending upward from the notch guides the inner wall of the secondary side plate; The first buffer pad is clamped between the inner guide plate and the outer guide plate.

9. The cotton bag wrapping device according to any one of claims 6 to 8, characterized in that: In the front-to-back direction, the first buffer device is located in the middle of the notch.

10. The cotton bag wrapping device according to claim 2, characterized in that: On the side wall of the corresponding shell assembly, the auxiliary shell accounts for 35% to 75% of the height of the side wall.

11. The cotton bag wrapping device according to claim 1, characterized in that: The left pivot assembly and the right pivot assembly both include: A fixed shaft, mounted on the outside of the corresponding housing assembly; The rotating sleeve is installed on the fixed shaft through a bearing, and the rotating sleeve is fixedly connected to the outer wall surface of the corresponding shell assembly.

12. The cotton bag wrapping device according to claim 11, characterized in that: The left pivot assembly and the right pivot assembly further include: A reinforcing arm is arranged in parallel on one side or both sides of the rotating sleeve; The first connecting member is used to strengthen the fixed connection between the arm and the upper end of the fixed shaft.

13. The cotton bag wrapping device according to claim 1, 11 or 12, characterized in that: The connection position between the corresponding shell assembly and the corresponding pivot assembly is provided with a connection reinforcement plate.

14. The cotton bag wrapping device according to claim 13, characterized in that: The connection reinforcement plate includes not only a first portion located on the outer wall surface of the corresponding shell assembly, but also a second portion extending to the top wall surface of the corresponding shell assembly.

15. The cotton bag wrapping device according to claim 1, characterized in that: The position where the left shell assembly and the right shell assembly are connected to the corresponding pivot assembly is the rear of the corresponding shell assembly.

16. The cotton bag wrapping device according to claim 1 or 15, characterized in that: The left shell assembly and the right shell assembly are provided with a limiting component on the front side of the corresponding pivot assembly to limit the maximum rotation angle of the corresponding shell assembly.

17. The cotton bag wrapping device according to claim 16, characterized in that: The limiting component is a second buffer device statically arranged relative to the corresponding shell assembly.

18. The cotton bag wrapping device according to claim 17, characterized in that: The second buffer device is a spring guide column; Correspondingly, a cushion block is provided on the corresponding housing assembly at a position for cooperating with the spring guide column.

19. The cotton bag wrapping device according to claim 1, characterized in that: The bagging device is mounted on the bagging bracket via a slide assembly; Correspondingly, the bag bracket is adapted to be equipped with a guide rail forming a guide rail pair with the slide assembly; A driving device is provided to drive the packaging device to move along the guide rail.

20. The cotton bag wrapping device according to claim 19, characterized in that: The driving device is a linear driving mechanism or a linear driving component.

21. The cotton bag wrapping device according to claim 20, characterized in that: The linear drive mechanism is selected from a synchronous belt mechanism, a transmission chain mechanism, a screw nut mechanism or a rack and pinion mechanism; The linear drive component is selected from a cylinder, a hydraulic cylinder, a linear motor or an electric push rod.

22. The cotton bag wrapping device according to any one of claims 19 to 21, characterized in that: The rear side of the slide assembly is connected to a vehicle to continue to connect to the bag delivery platform when the bagging device moves forward to its position; The trolley runs on the guide rail or the track arranged on the bag support.

23. The cotton bag wrapping device according to claim 19, characterized in that: An adjustment bottom plate is provided for each of the left housing assembly and the right housing assembly; The corresponding shell assembly is mounted on the adjustment base plate through the corresponding pivot assembly; The adjusting base plate is adjusted in the lateral direction of the slide plate assembly and is adapted to be equipped with a locking device to lock the adjusting base plate after the adjusting base plate is adjusted into place.

24. The cotton bag wrapping device according to claim 1 or 19, characterized in that: A predetermined distance is left between the top plate of the left shell assembly and the top plate of the right shell assembly so that the package pushing mechanism can intervene into the package holder from the upper side.

25. A packaging system, characterized in that: It comprises the cotton bag wrapping device as described in any one of claims 1 to 24.

Images