A paper guard plate pushing device and its baling machine and baling method

Abstract

The present invention discloses a paper guard plate pushing device and its baling machine and baling method. The paper guard plate pushing device comprises a base plate and a clamping structure arranged on the base plate for clamping the paper guard plate. An elastic support structure and a fixed support structure are arranged between the paper guard plate and the base plate. The elastic support structure and the fixed support structure are installed side by side on the base plate. The elastic support structure comprises a pre-pressing plate and a pre-pressing spring arranged between the pre-pressing plate and the base plate. The other side of the base plate clamping the paper guard plate is connected with a power pushing structure. The power pushing structure is used to push the paper guard plate to the edge of the goods. The pre-pressing plate is used to abut the paper guard plate against the goods. The fixed support structure is used to push the paper guard plate to be pre-bent. The present invention can pre-bend the paper guard plate after abutting against the edge of the goods, realize the application of using the paper guard plate as a corner protector, can be more closely fitted to the structure at the edge, and improve the packing effect of more closely fitting the goods.

Description

Technical Field

[0001] The present invention relates to the technical field of baling machines, and in particular to a paper guard plate pushing device, a baling machine and a baling method thereof. Background Art

[0002] With the promotion of automatic packaging technology, balers with automatic packaging function are widely used. In the process of packaging goods, it is usually necessary to place corner guards to cooperate with strapping for packaging. Corner guards have a certain length, width and thickness, and are generally folded at a certain angle. The material can be paper, plastic or other materials. The purpose of setting corner guards is to buffer the squeezing force of the strapping tape on the edge of the package, so that the package is not easily deformed. At the same time, it can prevent the misalignment between the layers of the packaged objects, so as to achieve the effect of protecting the product and the shape of the packaged objects.

[0003] In the prior art, the right-angle bent corner guard is generally used, which is more suitable for goods with regular rectangular cross-sections. The corner guard can fit the right angle of the goods and the areas on both sides, and the packaging effect is better. For example, the Chinese patent application publication number CN 113443235 A discloses a packaging device with an automatic corner guard feeding function and a control method thereof, wherein the packaging device includes an automatic corner guard feeding mechanism; the automatic corner guard feeding mechanism includes: a feeding module, the feeding module includes a storage rack and a discharging component, the storage rack is arranged vertically and forms a storage slot for the corner guard, the top of the storage slot forms an outlet, a sliding bearing member that can slide up and down is provided in the storage slot, the discharging component is located above the storage slot and can be slidably arranged on the storage rack, and the discharging component is used to push the corner guard in the storage slot out of the outlet; a clamping module, the clamping module includes a mounting frame, a telescopic mechanism and a clamping claw, the telescopic mechanism is arranged on the mounting frame, and the clamping claw is arranged on the telescopic mechanism. In this solution, a clamp is used to clamp the corner protector and place it on the edge of the cargo. However, the corner protector has a bending angle, and this solution can only be applied to cargo whose angles of the edge and the corner protector match.

[0004] For another example, a Chinese patent with the authorization announcement number CN 102658877 B discloses a baling machine with automatic corner protection, including a conveying mechanism for conveying the objects to be packaged and a tightening mechanism for tying the objects to be packaged. The tightening mechanism is provided with guide rails perpendicular to the conveying mechanism on both sides, and two corner protection mechanisms are slidably matched on each guide rail. When the objects to be packaged are conveyed by the conveying mechanism to the designated position directly below the tightening mechanism, the corner protection mechanism grabs the corner protection and moves along the guide rail to fully fit the corner protection to the surface of the objects to be packaged. The tightening mechanism uses tightening auxiliary materials to tighten the corner protection and the objects to be packaged into one, and the corner protection mechanism returns to the initial position. This solution also uses corner protection bent at a certain angle. Obviously, it can only be applied to goods with regular shapes and edges that match the angle of the corner protection.

[0005] In summary, the existing corner protection devices basically use corner protectors bent into a certain angle. For goods with uneven edges and irregular angles, such as goods stacked in multiple layers of folded cartons, due to factors such as uneven placement at the edges, the corner protectors cannot achieve a good fitting effect, resulting in a relatively poor packaging effect. Therefore, how to effectively pack such goods is a technical problem that needs to be solved urgently. Summary of the invention

[0006] The object of the present invention is to provide a paper guard plate pushing device and its baling machine and baling method, so as to solve the problems existing in the above-mentioned prior art. By arranging an elastic supporting structure and a fixed supporting structure on a base plate, under the action of a power pushing structure, the paper guard plate can be pressed in sections, so that the paper guard plate can be pre-bent after being abutted against the edge of the goods, thereby realizing the application of the paper guard plate as a corner guard, which can better fit the structure at the edge and improve the packing effect of the goods.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a paper guard plate pushing device, comprising a base plate and a clamping structure arranged on the base plate for clamping the paper guard plate, an elastic supporting structure and a fixed supporting structure are arranged between the paper guard plate and the base plate, the elastic supporting structure and the fixed supporting structure are installed side by side on the base plate, the elastic supporting structure comprises a pre-pressing plate and a pre-pressing spring arranged between the pre-pressing plate and the base plate, the other side of the base plate clamping the paper guard plate is connected to a power pushing structure, the power pushing structure is used to push the paper guard plate to the edge of the goods, the pre-pressing plate is used to abut the paper guard plate against the goods, and the fixed supporting structure is used to push the paper guard plate to be pre-folded.

[0009] Preferably, a first support block is provided on a side of the pre-pressing plate facing the paper guard plate, and the fixed support structure comprises a second support block mounted on the base plate, and initial positions of the first support block and the second support block are flush.

[0010] Preferably, the clamping structure comprises a first elastic buckle and a second elastic buckle, the first elastic buckle is arranged on a side of the elastic supporting structure away from the fixed supporting structure, and the second elastic buckle is arranged on a side of the fixed supporting structure away from the elastic supporting structure.

[0011] Preferably, the first elastic buckle includes a first support plate fixedly mounted on the pre-load plate and a first L-shaped buckle with an arm end hinged on the first support plate, the angle between the two arms of the first L-shaped buckle is greater than 90 degrees, and a first compression spring is provided on a side of the first L-shaped buckle away from the first support plate; the second elastic buckle includes a second support plate fixedly mounted on the second support block and a second L-shaped buckle with an arm end hinged on the second support plate, the angle between the two arms of the second L-shaped buckle is greater than 90 degrees, and a second compression spring is provided on a side of the second L-shaped buckle away from the second support plate.

[0012] The present invention provides a baling machine, comprising a frame, a belt slot assembly and a movable pressing plate arranged on the frame, a baling head is arranged on the movable pressing plate, the baling head and the belt slot assembly form a baling area through which the baling belt passes, and the frame is also provided with a paper guard plate pushing device as described above, and the paper guard plate pushing device is used to push the paper guard plate to the edge of the goods in the baling area.

[0013] Preferably, a lower guard plate device is provided on the frame, and the lower guard plate device includes the paper guard plate pushing device and a first paper guard plate bin for vertical feeding, a first transverse pushing structure is provided at the bottom of the first paper guard plate bin, a second transverse pushing structure perpendicular to its pushing direction is provided on the moving trajectory of the first transverse pushing structure, and a flip card slot is provided on the second transverse pushing structure, the paper guard plate pushed by the first transverse pushing structure enters the flip card slot, and is turned from transverse to vertical and then pushed to between the first elastic buckle and the second elastic buckle of the paper guard plate pushing device through the second transverse pushing structure.

[0014] Preferably, an upper guard plate device is provided on the frame, and the upper guard plate device includes a second paper guard plate bin for vertical feeding, a third lateral pushing structure is provided at the bottom of the second paper guard plate bin, a fourth lateral pushing structure perpendicular to its pushing direction is provided on the moving trajectory of the third lateral pushing structure, a first vacuum suction nozzle and a second vacuum suction nozzle are respectively provided above the third lateral pushing structure and below the fourth lateral pushing structure, and the fourth lateral pushing structure is used to push the paper guard plate to the edge of the goods in the packaging area.

[0015] Preferably, it includes a plurality of packing heads, which are mounted on the movable pressure plate through a mounting frame, one packing head corresponds to a group of the belt slot components, or one packing head corresponds to multiple groups of the belt slot components, and the mounting frame includes a linear drive structure, and the packing head switches between different belt slot components through the linear drive structure.

[0016] Preferably, the mounting frame includes a rotating bracket arranged on the linear drive structure, an auxiliary spring is provided in the rotation and opening direction of the rotating bracket, one end of the rotating bracket is hinged on the linear drive structure, and the other end is provided with a rotating pin, and the rotating pin is used to fix the other end of the rotating bracket to the linear drive structure.

[0017] The present invention also provides a packaging method of a packaging machine, using the packaging machine described above, comprising the following contents:

[0018] Place the goods in the packaging area of ​​the packaging machine;

[0019] The paper guard is pushed to the edge of the goods by using the paper guard pushing device and pre-bent;

[0020] The strapping head corresponds to a set of belt slot components. After the strapping belt passes through the belt slot components and wraps around the goods for one round, it is then collected, cut and welded.

[0021] The mobile packing head corresponds to another group of the belt slot components, passes the packing belt through the belt slot components and then wraps around the goods for a circle, then collects, cuts and welds the belt;

[0022] The paper guard plate pushing device is reset, and the packing head is reset.

[0023] Compared with the prior art, the present invention has achieved the following technical effects:

[0024] (1) The present invention provides a clamping structure on the base plate, the clamping structure clamps the paper guard plate, and an elastic support structure and a fixed support structure are provided between the paper guard plate and the base plate. By providing the elastic support structure and the fixed support structure on the base plate, the paper guard plate is pressed in sections under the action of the power pushing structure, so that the paper guard plate can be pre-bent after being abutted against the edge of the goods, so that the paper guard plate can be used as a corner guard, which can better fit the structure at the edge and improve the packing effect of the goods;

[0025] (2) The clamping structure of the present invention includes a first elastic buckle and a second elastic buckle. Through the arrangement of the first elastic buckle and the second elastic buckle, the clamping structure can smoothly transport the paper guard to the edge of the goods. After packaging, there is no need to adopt other control methods to loosen the clamping structure. The power pushing structure only needs to be moved away from the goods to reset and run, so that the clamping structure can be separated from the paper guard that has been packaged on the goods. The structure is simple and automatic control can be easily realized.

[0026] (3) The baler of the present invention includes a plurality of baling heads, which can baling different positions on the same goods at the same time, thereby avoiding the time waste caused by moving the goods or the baling machine when baling different positions of the same goods, and realizing the rapid baling of the goods; in addition, by means of one baling head corresponding to a plurality of groups of belt slot components, when baling different positions of the same goods, only the baling head needs to be moved, which can also reduce the time waste and improve the baling speed. At the same time, compared with the design of multiple baling heads, the baling spacing of the goods can also be reduced; the combination of the above two methods can combine the advantages of both and achieve a better baling effect;

[0027] (4) The linear drive structure of the present invention adopts a cylindrical rack and a gear meshing mode. The cylindrical rack can be supported on the rotating support structure as the rotating axis of the mounting frame at the same time, so that the mounting frame drives the packing head to rotate, which is convenient for lifting the packing head and repairing the packing head;

[0028] (5) The mounting frame of the present invention includes a rotating bracket, which is fixed by a rotating pin, which is convenient and quick. In addition, an auxiliary spring is also provided on the rotating bracket to assist in lifting the packing head, thereby saving manpower consumption during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of the paper guard plate pushing device of the present invention;

[0031] Figure 2 for Figure 1 Side view;

[0032] Figure 3 for Figure 1 Schematic diagram of explosion structure;

[0033] Figure 4 It is a schematic diagram of the structure of the lower guard plate device of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the upper guard plate device of the present invention;

[0035] Figure 6 It is a schematic diagram of the overall structure of the baler of the present invention;

[0036] Figure 7 for Figure 6 Side view of

[0037] Figure 8 This is a schematic diagram of the mounting frame structure of the present invention;

[0038] Fig. 9 for Figure 8 Schematic diagram of explosion structure;

[0039] Among them, 1. lower guard plate device; 2. upper guard plate device; 3. belt slot assembly; 4. movable pressing plate; 5. belt device; 6. mounting frame; 7. packing head; 8. goods; 9. paper guard plate;

[0040] 11. Paper guard plate pushing device; 12. First lateral pushing structure; 13. Second lateral pushing structure; 131. Turning card slot; 14. Turning pushing structure; 15. First paper guard plate bin;

[0041] 111, base plate; 112, fixed support structure; 1121, second support block; 113, elastic support structure; 1131, pre-compression plate; 1132, first support block; 1133, pre-compression spring; 1134, buffer rubber; 114, first elastic buckle; 1141, first compression spring; 1142, first L-shaped buckle; 1143, first support sheet; 115, second elastic buckle; 1151, second compression spring; 1152, second L-shaped buckle; 1153, second support sheet; 116, power push structure;

[0042] 21. Second paper guard bin; 22. Third lateral push structure; 221. First vacuum nozzle; 23. Fourth lateral push structure; 231. Second vacuum nozzle; 24. Position sensor strip;

[0043] 31. first belt slot assembly; 32. second belt slot assembly; 33. third belt slot assembly;

[0044] 61. Rotating bracket; 62. Rotary pin; 63. Handle; 64. Auxiliary spring; 65. Rotating support structure; 66. Linear drive structure; 661. Gear; 662. Cylindrical rack; 663. Drive motor. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The purpose of the present invention is to provide a paper guard plate pushing device and its baling machine and baling method to solve the problems existing in the prior art. By arranging an elastic supporting structure and a fixed supporting structure on a base plate, under the action of a power pushing structure, the paper guard plate can be pressed in sections, so that the paper guard plate can be pre-bent after being abutted against the edge of the goods, thereby realizing the application of the paper guard plate as a corner guard, which can better fit the structure at the edge and improve the packing effect of the goods.

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] like Figures 1 to 3As shown, the present invention provides a paper guard plate pushing device 11, including a substrate 111 and a clamping structure arranged on the substrate 111 for clamping the paper guard plate 9. The substrate 111 can be a plate-like structure, a block structure or a frame-like structure, etc., for carrying the clamping structure and the power pushing structure 116. The clamping structure can adopt a scissor-type clamping method or a push plate-type clamping method controlled by a power drive structure, etc.; it can also adopt an elastic claw-type clamping method. In this case, the power drive structure can be avoided by setting elastic parts such as springs to simplify the structural setting. The paper guard plate 9 is a flat cardboard with a certain flexibility and can be bent under force. An elastic support structure 113 and a fixed support structure 112 are arranged between the paper guard plate 9 and the substrate 111, and the elastic support structure 113 and the fixed support structure 112 are installed side by side on the substrate 111, that is, the movement of the substrate 111 can simultaneously drive the movement of the elastic support structure 113 and the fixed support structure 112. The elastic support structure 113 includes a pre-stressing plate 1131 and a pre-stressing spring 1133 arranged between the pre-stressing plate 1131 and the substrate 111. The pre-stressing spring 1133 is evenly arranged within the width range of the pre-stressing plate 1131. In the initial state, the pre-stressing spring 1133 can maintain a certain distance between the pre-stressing plate 1131 and the substrate 111. After the substrate 111 is subjected to pressure, on the basis of the pre-stressing plate 1131 abutting against the paper guard plate 9, the substrate 111 can compress the pre-stressing spring 1133 and thus make the substrate 111 close to the pre-stressing plate 1131, thereby reducing the distance between the two. A buffer rubber 1134 can be arranged on the side of the pre-stressing plate 1131 facing the substrate 111. After the pre-stressing spring 1133 is compressed to the limit, the buffer rubber 1134 can also play a buffering role to prevent the pre-stressing plate 1131 and other structures from being damaged by impact. The fixed support structure 112 will not be compressed or change size due to the force, and will always keep in contact with the paper guard plate 9 as the base plate 111 continues to move after contacting the paper guard plate 9. While the preload spring 1133 is compressed, the fixed support structure 112 continues to push the paper guard plate 9 to move and bend it as the base plate 111 moves. As for the setting of the power structure, a power push structure 116 is connected to the other side of the base plate 111 that clamps the paper guard plate 9. The power push structure 116 can be a structure such as a cylinder, an oil cylinder, a linear motor, etc., preferably a cylinder. The power pushing structure 116 is used to push the paper guard plate 9 to the edge of the cargo 8. It should be noted that the range of the paper guard plate 9 corresponding to the elastic support structure 113 is in contact with the cargo 8, while the range of the paper guard plate 9 corresponding to the fixed support structure 112 is suspended in the air. When the base plate 111 continues to move, the pre-compression plate 1131 presses the paper guard plate 9 against the cargo 8, the pre-compression spring 1133 continues to compress, and the fixed support structure 112 continues to move to push one end of the suspended paper guard plate 9 to pre-bend.The present invention arranges an elastic support structure 113 and a fixed support structure 112 on a base plate 111, and under the action of a power pushing structure 116, achieves segmented compression of the paper guard plate 9, so that the paper guard plate 9 can be pre-bent after being abutted against the edge of the goods 8, thereby realizing the use of the paper guard plate 9 as a corner guard, which can better fit the structure at the edge and improve the packing effect of the goods 8.

[0049] A first support block 1132 may be provided on the side of the pre-pressing plate 1131 facing the paper guard 9. The first support block 1132 may be a strip-shaped structure, a block-shaped structure, etc. Preferably, a strip-shaped structure is adopted and it is horizontally arranged on the pre-pressing plate 1131 near the edge. In order to ensure that the paper guard 9 can be smoothly inserted from one side into the front of the first support block 1132, a guide slope may be provided at the end of the strip-shaped structure where the paper guard 9 is inserted. The fixed support structure 112 may include a second support block 1121 mounted on the substrate 111. The second support block 1121 may be a strip-shaped structure or a block-shaped structure, etc. Preferably, a block-shaped structure is adopted and it is distributed at the corners of the substrate 111. Similarly, a guide slope may be provided at the end where the paper guard 9 is inserted. The initial positions of the first support block 1132 and the second support block 1121 are flush to ensure that the paper guard 9 is smoothly inserted into place.

[0050] The clamping structure may include a first elastic buckle 114 and a second elastic buckle 115 . The first elastic buckle 114 is disposed on a side of the elastic support structure 113 away from the fixed support structure 112 , and the second elastic buckle 115 is disposed on a side of the fixed support structure 112 away from the elastic support structure 113 . The paper guard 9 is clamped between the first elastic buckle 114 and the second elastic buckle 115. The first elastic buckle 114 and the second elastic buckle 115 are pressed against the side of the paper guard 9 by elasticity (their own elasticity or the elastic force of the spring). When the force applied to the paper guard 9 is greater than the pressing force, the paper guard 9 will be detached from between the two buckles. Therefore, the clamping structure adopts the form of the first elastic buckle 114 and the second elastic buckle 115, which can enable the clamping structure to smoothly transport the paper guard 9 to the edge of the goods 8. After packaging is completed, there is no need to adopt other control methods to loosen the clamping structure. The power pushing structure 116 only needs to be reset away from the goods 8 to realize the detachment of the clamping structure from the paper guard 9 that has been packaged on the goods 8. The structure is simple and easy to realize automatic control.

[0051] The first elastic buckle 114 may include a first support sheet 1143 fixedly mounted on the pre-pressing plate 1131. The end of the first support sheet 1143 is provided with a bent bevel to guide it in order to avoid affecting the entry of the paper guard 9. It also includes a first L-shaped buckle 1142. The end of one arm of the first L-shaped buckle 1142 is hinged on the first support sheet 1143, so that the first L-shaped buckle 1142 can be flipped in a direction away from the first support sheet 1143, and the other arm of the first L-shaped buckle 1142 is oriented in the direction of the second L-shaped buckle 1152. The angle between the two arms of the first L-shaped buckle 1142 is greater than 90 degrees. When the paper guard 9 is separated from the paper guard 9, the paper guard 9 can move along the inclined surface formed by the other arm of the first L-shaped buckle 1142, and the arm is lifted up to achieve separation from the clamping of the first L-shaped buckle 1142. A first compression spring 1141 is disposed on a side of the first L-shaped buckle 1142 away from the first supporting sheet 1143 . The first compression spring 1141 is used to provide a certain pressure to the first L-shaped buckle 1142 to ensure a clamping effect.

[0052] The second elastic buckle 115 may include a second support sheet 1153 fixedly mounted on the second support block 1121. The end of the second support sheet 1153 is provided with a bent bevel to guide it in order to avoid affecting the entry of the paper guard 9. It also includes a second L-shaped buckle 1152. The end of one arm of the second L-shaped buckle 1152 is hinged on the second support sheet 1153, so that the second L-shaped buckle 1152 can be flipped away from the second support sheet 1153, and the other arm of the second L-shaped buckle 1152 is oriented toward the first L-shaped buckle 1142. The angle between the two arms of the second L-shaped buckle 1152 is greater than 90 degrees. When the paper guard 9 is separated from the paper guard 9, the paper guard 9 can move along the inclined surface formed by the other arm of the second L-shaped buckle 1152, and the arm is lifted up to achieve separation from the clamping of the second L-shaped buckle 1152. A second compression spring 1151 is disposed on a side of the second L-shaped buckle 1152 away from the second supporting plate 1153 . The second compression spring 1151 is used to provide a certain pressure to the second L-shaped buckle 1152 to ensure a clamping effect.

[0053] like Figures 4 to 9As shown, the present invention provides a baling machine, including a frame, a belt slot assembly 3 and a movable pressing plate 4 arranged on the frame, and a belt laying device 5 for conveying and arranging the baling belt is also arranged on the baling belt feeding side of the frame, and the baling belt on the baling belt reel is conveyed to the baling head 7. The belt slot assembly 3 may include multiple groups, for example, a first belt slot assembly 31, a second belt slot assembly 32 and a third belt slot assembly 33 arranged in parallel, wherein the first belt slot assembly 31 and the second belt slot assembly 32 correspond to the same baling head 7. The frame may adopt a square-shaped frame, and the belt slot assembly 3 is arranged around the square-shaped frame, and a movable pressing plate 4 is arranged on the top, and the interior is used to place the goods 8. The baling head 7 is arranged on the movable pressing plate 4, and the movable pressing plate 4 can move up and down to convey the baling head 7 to the surface of the goods 8. Thereby, the baling head 7 and the belt slot assembly 3 form a baling area through which the baling belt passes along the four sides of the square-shaped frame, and when the goods 8 are placed in place, the goods 8 can be bundled and packaged. The frame is also provided with a paper guard pushing device 11 as described above. The paper guard pushing device 11 is used to push the paper guard 9 to the edges of the goods 8 in the packaging area. By adjusting the direction and position of the paper guard pushing device 11, the operation of placing the paper guard 9 on each edge of the goods 8 can be achieved.

[0054] like Figure 4 As shown, a lower guard plate device 1 may be provided on the frame, and the lower guard plate device 1 includes a paper guard plate pushing device 11 and a first paper guard plate bin 15 for vertical feeding. The first paper guard plate bin 15 is provided with an opening at the bottom, through which the paper guard plate 9 can be placed on the first transverse pushing structure 12 provided at the bottom of the first paper guard plate bin 15. A second transverse pushing structure 13 perpendicular to its pushing direction is provided on the moving track of the first transverse pushing structure 12, and a flip card slot 131 is provided on the second transverse pushing structure 13. The flip card slot 131 is flipped by pushing or pulling the flip pushing structure 14 to achieve a horizontal or vertical change. The paper guard plate 9 pushed by the first transverse pushing structure 12 enters the flip card slot 131, and is turned from horizontal to vertical under the push of the flip pushing structure 14, and then is pushed to between the first elastic buckle 114 and the second elastic buckle 115 of the paper guard plate pushing device 11 by the second transverse pushing structure 13. Under the push of the power pushing structure 116, it is attached to the edge of the goods 8 and the pre-bending operation is completed. The first lateral pushing structure 12, the second lateral pushing structure 13 and the flipping pushing structure 14 can all use power sources such as air cylinders and hydraulic cylinders, and preferably use air cylinders as the power source.

[0055] like Figure 5As shown, the frame may be provided with an upper guard plate device 2, which includes a second paper guard plate bin 21 for vertical feeding, an opening is provided at the bottom of the second paper guard plate bin 21, through which the paper guard plate 9 can be placed on a third transverse pushing structure 22 provided at the bottom of the second paper guard plate bin 21, a fourth transverse pushing structure 23 perpendicular to its pushing direction is provided on the moving track of the third transverse pushing structure 22, a first vacuum suction nozzle 221 and a second vacuum suction nozzle 231 are provided above the third transverse pushing structure 22 and below the fourth transverse pushing structure 23, respectively, the first vacuum suction nozzle 221 sucks the paper guard plate 9 at the bottom of the paper guard plate 9 and drives it to move transversely, so as to facilitate the paper guard plate 9 to be led out of the second paper guard plate bin 21, and the second vacuum suction nozzle 231 sucks the paper guard plate 9 at the bottom of the paper guard plate 9 and drives it to move transversely, so as to facilitate the paper guard plate 9 to be moved above the top of the goods 8. When determining the pushing position, the position sensing strip 24 can be provided, and the position sensing strip 24 can be used to sense the notch of the photoelectric sensor for positioning. The fourth lateral pushing structure 23 is used to push the paper guard 9 to the edge of the goods 8 in the packaging area. It should be noted that after the paper guard 9 is pushed into place by the fourth lateral pushing structure 23, it needs to be pressed as a whole against the upper surface of the goods 8 under the action of the mobile pressing plate 4. At this time, part of the paper guard 9 is attached to the surface of the goods 8, and part of it is suspended. According to the strapping direction of the strapping tape, the paper guard 9 can be provided with a corresponding structure for pre-bending it. When a pre-bending structure is required, a cylinder can be used to directly push the suspended part of the paper guard 9. Both the third lateral pushing structure 22 and the fourth lateral pushing structure 23 can use power sources such as cylinders and hydraulic cylinders, and preferably a cylinder is used as the power source.

[0056] like Figure 6 As shown, it may include multiple packing heads 7. The arrangement of multiple packing heads 7 can pack different positions on the same cargo 8 at the same time, avoiding the waste of time and power energy caused by the need to move the cargo 8 or the movement of the packing machine when packing different positions of the same cargo 8, thereby realizing fast and energy-saving packing of the cargo 8. The packing head 7 is installed on the movable pressure plate 4 through the mounting frame 6. One packing head 7 corresponds to one group of belt groove components 3, or one packing head 7 corresponds to multiple groups of belt groove components 3. By having one packing head 7 correspond to multiple groups of belt groove components 3, it is only necessary to move the packing head 7 when packing different positions of the same cargo 8. Similarly, it can reduce time waste and increase the packing speed. At the same time, compared with the design of multiple packing heads 7, since the spacing between the belt groove components 3 can be shortened, the packing spacing on the surface of the cargo 8 can be reduced. As shown Figure 8As shown, the mounting frame 6 may include a linear drive structure 66, and the packing head 7 switches between different belt slot assemblies 3 through the linear drive structure 66. The packing machine of the present invention may also adopt a combination of multiple packing heads 7 and one packing head 7 corresponding to multiple belt slot assemblies 3, which can combine the advantages of the two and achieve a better packing effect.

[0057] like Figures 8-9 As shown, for the structure in which the packing head 7 can move laterally, the mounting frame 6 includes a rotating bracket 61 arranged on a linear drive structure 66, and an auxiliary spring 64 is arranged in the rotation opening direction of the rotating bracket 61. The auxiliary spring 64 can assist in lifting the packing head 7, saving manpower consumption during lifting. One end of the rotating bracket 61 is hinged on the linear drive structure 66, and the other end is provided with a rotating pin 62, and a handle 63 can be provided at a position close to the rotating pin 62, so as to facilitate the operation of lifting the packing head 7 by hand. The rotating pin 62 is used to fix the other end of the rotating bracket 61 on the linear drive structure 66. The rotating pin 62 can be sleeved in a sleeve with a guide inclined surface on the end face. By rotating the rotating pin 62, the insertion depth of the rotating pin 62 can be changed, and then it can be controlled whether the rotating pin 62 is fixedly connected to the rotating bracket 61. The linear drive structure 66 may include a gear 661 driven to rotate by a drive motor 663, and the gear 661 is meshed with a cylindrical rack 662. The rotation of the gear 661 can cause the cylindrical rack 662 to move axially, thereby driving the packing head 7 to move. The cylindrical rack 662 can also be set as a rotating shaft on the rotating support structure 65, and the rotating bracket 61 can rotate around the cylindrical rack 662. While satisfying the lateral movement of the packing head 7, it is also convenient to lift the packing head 7 and repair the packing head 7.

[0058] The present invention also provides a packaging method of a packaging machine, which can be applied to the packaging machine described above, and includes the following contents:

[0059] Placing the goods 8 in the packaging area of ​​the packaging machine by means of a conveyor belt or the like;

[0060] The paper guard 9 is pushed to the edge of the cargo 8 by the paper guard pushing device 11, and the paper guard 9 is attached to the surface of the cargo 8 by the power pushing structure 116 of the paper guard pushing device 11, and the power pushing structure 116 is continued to be moved to pre-bend the suspended portion of the paper guard 9; when placing the paper guard 9, the paper guard 9 can be placed at the four corners of the cargo 8 where the packing tape is wrapped, and the paper guard pushing device 11 can be used, or the upper guard device 2 can be used to place the upper paper guard 9, and the lower guard device 1 can be used to place the lower paper guard 9;

[0061] One packing head 7 corresponds to a group of belt slot components 3, and multiple packing heads 7 can work simultaneously. After the packing belt passes through the belt slot components 3 and wraps around the goods 8 for one round, the packing belt is collected, cut and welded to complete the packing of the goods 8 at the packing position;

[0062] If one packing head 7 corresponds to more than one belt slot assembly 3, the mobile packing head 7 corresponds to another group of belt slot assembly 3, and the packing belt passes through the belt slot assembly 3 and wraps around the goods 8 for one circle, and then the belt is collected, cut and welded to complete the packing of the goods 8 at the packing position;

[0063] The paper guard plate pushing device 11 is controlled to reset. Under the action of the first elastic buckle 114 and the second elastic buckle 115, the paper guard plate pushing device 11 can smoothly detach from the paper guard plate 9, and the packing head 7 is reset under the driving action of the movable pressing plate 4, waiting for the next cargo 8 to be packed.

[0064] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A baling machine, characterized in that: The machine comprises a frame, a belt slot assembly and a movable pressing plate arranged on the frame, a packing head is arranged on the movable pressing plate, the packing head and the belt slot assembly form a packing area through which the packing belt passes, and a paper guard plate pushing device is also arranged on the frame, and the paper guard plate pushing device is used to push the paper guard plate to the edge of the goods in the packing area; The paper guard plate pushing device comprises a base plate and a clamping structure arranged on the base plate for clamping the paper guard plate, the clamping structure comprises a first elastic buckle and a second elastic buckle, an elastic support structure and a fixed support structure are arranged between the paper guard plate and the base plate, the elastic support structure and the fixed support structure are installed side by side on the base plate, the elastic support structure comprises a pre-pressing plate and a pre-pressing spring arranged between the pre-pressing plate and the base plate, the other side of the base plate clamping the paper guard plate is connected to a power pushing structure, the power pushing structure is used to push the paper guard plate to the edge of the goods, the pre-pressing plate is used to abut the paper guard plate against the goods, and the fixed support structure is used to push the paper guard plate to be pre-bent; A buffer rubber is arranged on a side of the pre-compression plate facing the base plate, and after the pre-compression spring is compressed to the limit, the buffer rubber plays a buffering role to prevent the pre-compression plate from being damaged by impact; The frame is provided with a lower guard plate device, the lower guard plate device includes the paper guard plate pushing device and a first paper guard plate bin for vertical feeding, a first transverse pushing structure is provided at the bottom of the first paper guard plate bin, a second transverse pushing structure perpendicular to its pushing direction is provided on the moving track of the first transverse pushing structure, a flip card slot is provided on the second transverse pushing structure, the paper guard plate pushed by the first transverse pushing structure enters the flip card slot, and after being turned from transverse to vertical, is pushed to between the first elastic buckle and the second elastic buckle of the paper guard plate pushing device through the second transverse pushing structure; The frame is provided with an upper guard plate device, the upper guard plate device includes a second paper guard plate bin for vertical feeding, a third lateral pushing structure is provided at the bottom of the second paper guard plate bin, a fourth lateral pushing structure perpendicular to its pushing direction is provided on the moving track of the third lateral pushing structure, a first vacuum suction nozzle and a second vacuum suction nozzle are provided above the third lateral pushing structure and below the fourth lateral pushing structure, respectively, and the fourth lateral pushing structure is used to push the paper guard plate to the edge of the goods in the packaging area; It comprises a plurality of packing heads, which are mounted on the movable platen via a mounting frame, one packing head corresponds to a group of the belt slot components, or one packing head corresponds to a plurality of groups of the belt slot components, and the mounting frame comprises a linear drive structure, and the packing head switches between different belt slot components via the linear drive structure.

2. The baler according to claim 1, characterized in that: A first support block is arranged on one side of the pre-pressing plate facing the paper guard plate, and the fixed support structure comprises a second support block mounted on the base plate, and the initial positions of the first support block and the second support block are flush.

3. The baler according to claim 2, characterized in that: The first elastic buckle is arranged on a side of the elastic supporting structure away from the fixed supporting structure, and the second elastic buckle is arranged on a side of the fixed supporting structure away from the elastic supporting structure.

4. The baler according to claim 3, characterized in that: The first elastic buckle includes a first support plate fixedly mounted on the pre-load plate and a first L-shaped buckle with an arm end hinged on the first support plate, the angle between the two arms of the first L-shaped buckle is greater than 90 degrees, and a first compression spring is provided on a side of the first L-shaped buckle away from the first support plate; the second elastic buckle includes a second support plate fixedly mounted on the second support block and a second L-shaped buckle with an arm end hinged on the second support plate, the angle between the two arms of the second L-shaped buckle is greater than 90 degrees, and a second compression spring is provided on a side of the second L-shaped buckle away from the second support plate.

5. The baler according to claim 4, characterized in that: The mounting frame includes a rotating bracket arranged on the linear drive structure, an auxiliary spring is provided in the rotation and opening direction of the rotating bracket, one end of the rotating bracket is hinged on the linear drive structure, and the other end is provided with a rotating pin, and the rotating pin is used to fix the other end of the rotating bracket on the linear drive structure.

6. A packaging method for a packaging machine, characterized in that: The packaging machine according to any one of claims 1 to 5 comprises the following contents: Place the goods in the packaging area of ​​the packaging machine; The paper guard is pushed to the edge of the goods by using the paper guard pushing device and pre-bent; The strapping head corresponds to a set of belt slot components. After the strapping belt passes through the belt slot components and wraps around the goods for one round, it is then collected, cut and welded. The mobile packing head corresponds to another group of the belt slot components, passes the packing belt through the belt slot components and then wraps around the goods for a circle, then collects, cuts and welds the belt; The paper guard plate pushing device is reset, and the packing head is reset.

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