Inner mechanism system for packing machine and packing machine

Abstract

Disclosed are an inner mechanism system for a packing machine and a packing machine. The inner mechanism system for a packing machine comprises: a frame, on which a movable plate is movably arranged; a cutting tool device, which is mounted below the movable plate and configured to clamp, hot-melt and cut a packing strap; a push rod device, which is mounted on the frame and configured to push the packing strap to a position between the movable plate and the cutting tool device; and a drive device for driving the push rod device and the cutting tool device, wherein the push rod device comprises a push rod configured to push the packing strap, a swing arm movably mounted at one end of the push rod, a swing assembly for driving the swing arm to swing, and a pushing assembly for driving the push rod to move; and the drive device is provided with a drive main shaft for driving the swing assembly and the pushing assembly to operate. Due to the provision of the push rod, the packing strap can be directly pushed by means of the push rod to an object to be packed during operation, and the object is then packed. This eliminates the requirement for an additional strap guide frame structure in the entire packing machine, making the packing machine more suitable for objects of various sizes.

Description

Movement system for baler and baler Technical Field

[0001] The present invention belongs to the technical field of baling machines, and in particular relates to a core system for a baling machine and a baling machine. Background Art

[0002] A baler, also known as a strapping machine, is used to wrap strapping tape around an object to be packaged, then cut the strapping tape with a cutter and fuse the ends of the tape together to complete the packaging. Existing balers, such as the one proposed by the applicant in the prior invention patent CN112278965B, although this structure can package items, the strapping tape must first pass through the entire tape guide frame when packaging, and then be loosened by the tape guide frame and tightened by the tightening mechanism. Finally, the cutter device first welds the strapping tape and then cuts it. The entire structure is more complicated due to the arrangement of the tape guide frame, and the entire device is larger. In addition, the tape guide frame has certain restrictions on the size of the item. Once the width or height of the item exceeds the size of the tape guide frame, it will become unsuitable. Therefore, this type of strapping machine (baler) has certain limitations.

[0003] Summary of the Invention

[0004] The present invention provides a movement system and a baling machine, which directly adopts a shifting rod to shift the strapping tape so that the strapping tape can be wound around an object, thereby packaging the object. The shifting rod can shift the strapping tape again to cooperate with a subsequent cutter head device to cut and fuse the strapping tape. There is no need to set up a separate tape guide frame, and the structure is simple and compact.

[0005] The present invention adopts the following technical solutions:

[0006] The present invention proposes a movement system for a baling machine, which is installed on the baling machine and is used to wrap the strapping tape around the object to be packaged for packaging. The movement system has the following characteristics: a frame, on which a movable plate is movably provided; a tool device, installed under the movable plate, and used to clamp, heat-melt and cut the strapping tape; a shifting rod device, installed on the frame, and used to shift the strapping tape between the movable plate and the tool device; and a driving device, and used to drive the shifting rod device and the tool device; wherein the shifting rod device includes: a shifting rod, used to shift the strapping tape; a swing arm, movably installed at one end of the shifting rod; a swinging assembly, which drives the swinging arm to swing; and a shifting assembly, which drives the shifting rod to move; the driving device has a driving spindle for driving the swinging assembly and the shifting assembly to work.

[0007] The movement system for the baling machine proposed according to the present invention may also have the following features, wherein the toggle assembly comprises: a toggle wheel, which rotates under the drive of the driving main shaft; a rotating rod, which rotates under the drive of the toggle wheel; and a pull rod, one end of which is connected to the rotating rod and the other end of which is connected to the toggle rod; the swing assembly comprises: a swing wheel, which is coaxially arranged with the toggle wheel, a swing roller, which is rollingly arranged on the swing wheel, and the swing roller is installed on the swing arm.

[0008] The baler proposed in accordance with the present invention may also have such a feature, wherein the swing wheel contains: an inner end surface, arranged toward the toggle wheel, and an outer end surface, arranged away from the toggle wheel, the outer end surface protruding outward to form a first protrusion and a second protrusion, the first protrusion and the second protrusion are connected to form a first channel and a second channel, and the swing roller can roll relative to each other along the first channel and the second channel.

[0009] The movement system for the baler proposed in accordance with the present invention may also have such a feature, wherein a roller that can roll relatively along the outer edge of the toggle wheel is provided in the middle of the rotating rod, and the outer edge of the toggle wheel has a recessed portion and a protruding portion. When the roller rolls on the recessed portion, the toggle rod swings toward the side away from the rotating rod; when the roller rolls on the protruding portion, the toggle rod swings toward the side close to the rotating rod.

[0010] The movement system for the baling machine proposed in the present invention may also have the following features, wherein a movable shaft is fixedly provided on the side of the swing arm away from the shift rod, and the driving mechanism also includes a lifting component that drives the movable shaft to move in the vertical direction, and the lifting component comprises: a lifting component, which is integrally provided with the movable shaft or fixed separately; a lifting roller, which acts on the lifting component and drives the lifting component to move up and down; and a lifting bracket, which is used to install the lifting roller and is linked to the driving main shaft. Under the drive of the driving main shaft, the lifting bracket moves up and down; the lifting roller has: a first end face, which is combined with the lifting bracket; a second end face, which has a gap with the movable shaft; and a peripheral surface, which is in contact with the lower end face of the lifting component.

[0011] The movement system for the baler proposed in the present invention may also have the following features, wherein the lifting assembly further comprises: a guide column, the movable shaft is a hollow cylindrical shape, sleeved on the outer circumference of the guide column, a first elastic member, sleeved on the outer circumference of the guide column, and used for resetting the movable shaft; the lifting bracket comprises: a movable plate, on which at least two lifting rollers are mounted; a first slider assembly, fixed to the movable plate; and a support plate, one end of which is fixed to the slider of the first slider assembly, and the other end of which is provided with a first roller; a first cam that cooperates with the first roller is provided on the driving spindle; and the lifting rollers are symmetrically arranged on the lower end surface of the lifting component.

[0012] The movement system for the strapping machine proposed in the present invention may also have the following features, wherein the tool device includes: a positioning knife for clamping the strapping tape; a top block for cooperating with the positioning knife to clamp the strapping tape; a cutter for cutting the strapping tape; a hot iron for hot-melting the strapping tape after being cut by the cutter; a clamping block for pressing the strapping tape onto the movable plate; and a pressing block for pressing the strapping tape after being hot-melted by the hot iron; the positioning knife, the cutting knife, the hot iron and the clamping block are sequentially arranged on the frame along the forward direction of the strapping tape.

[0013] The movement system for the strapping machine proposed in the present invention may also have such a feature, wherein the lever has a first position and a second position in the process of moving the strapping tape, when the lever swings to the first position, the clamping block moves upward to clamp the strapping tape between the clamping block and the movable plate; when the lever swings to the second position, the top block moves upward to clamp the strapping tape between the top block and the positioning knife, and then the cutter moves upward to cut the strapping tape; the second position is located between the ironing head and the cutter, and the ironing head hot-melts the strapping tape after the strapping tape is cut by the cutter.

[0014] The movement system for the baling machine proposed in the present invention may also have the following features, wherein the positioning knife, top block, cutter, ironing head, clamping block and pressing block are all movably arranged on the frame, and the driving main shaft is provided with a moving plate cam group, a positioning knife cam group, a top block cam group, a cutter cam group, an ironing head cam group, a clamping block cam group and a pressing block cam group for respectively driving the moving plate, positioning knife, top block, cutter, ironing head, clamping block and pressing block to move.

[0015] The baler movement system proposed in the present invention may also have the following features, wherein the frame is located below the movable plate and a pressure plate assembly is movably provided, and the pressure plate assembly comprises: a pressure plate for pressing the end of the strapping belt onto the movable plate; a rotating frame for driving the pressure plate to rotate; and a crank connected to the rotating frame; a connecting block is provided on the movable plate, a guide hole is provided on the connecting block, and a pin that can move in the guide hole is provided at one end of the pressure plate, and the pressure plate rotates along the guide hole relative to the connecting block under the drive of the rotating frame; a slide rail assembly is also provided between the pressure plate and the rotating frame, and the pressure plate moves relative to the rotating frame under the drive of the connecting block.

[0016] The present invention also proposes a baling machine having the following characteristics, comprising at least: a machine body; a movement system installed on the machine body, used to wrap the strapping tape around the object to be packaged for packaging; a material belt system, used to store and convey the strapping tape; and a packaging material conveying system, used to transport the object; wherein the movement system is the movement system for the baling machine as described above.

[0017] Functions and effects of the invention

[0018] According to the baler movement system and baler provided by the present invention, a movable moving plate is directly arranged on the frame of the movement system, a tool device is arranged below the moving plate, and a shift lever is provided, so that the baling belt can be directly moved by the shift lever between the moving plate and the tool device to be compressed, hot-melted and cut, which is very convenient. The entire baler does not need to be additionally provided with a belt guide frame structure and a tightening structure. It is more suitable for objects of various sizes, has a wide range of applications, and the baling process is also faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a front angle structural diagram of the baler core system of the present invention.

[0020] FIG2 is a rear-angle structural diagram of the baler core system of the present invention.

[0021] FIG3 is a structural diagram of the lever device of the present invention installed on a frame.

[0022] FIG4 is a structural diagram of the toggle assembly of the present invention from a forward angle.

[0023] FIG5 is a structural diagram of the toggle assembly of the present invention from a top view.

[0024] FIG6 is a diagram showing the installation structure of the swing assembly of the present invention.

[0025] FIG7 is a structural diagram of the swing wheel of the present invention.

[0026] FIG8 is a cross-sectional view of the swing wheel mounting structure of the present invention.

[0027] FIG9 is a diagram showing the installation structure of the lifting assembly of the present invention.

[0028] FIG10 is a perspective view of the lifting assembly of the present invention.

[0029] FIG11 is a front view of the lifting roller installation structure of the present invention.

[0030] FIG12 is a structural diagram of the connection between the lifting assembly and the drive spindle of the present invention.

[0031] 13 is a front structural diagram of the tool device of the present invention installed on the frame.

[0032] FIG14 is a reverse structural diagram of the tool device of the present invention installed on the frame.

[0033] 15 is a structural diagram of the pressure plate assembly of the present invention installed on the frame.

[0034] FIG16 is a schematic diagram of the position structure of the pressure plate assembly and the movable plate of the present invention.

[0035] 17 is a schematic diagram of the installation structure of the positioning knife and the top block of the present invention.

[0036] FIG18 is a structural diagram of a positioning knife of the present invention.

[0037] 19 is a schematic diagram of the installation structure of the ironing knife, cutting knife and pressing block of the present invention.

[0038] FIG20 is a schematic diagram of the installation structure of the clamping block of the present invention.

[0039] Figures 21a to 21f are schematic diagrams of the status of the strapping belt of the strapping machine of the present invention during the strapping process.

[0040] Figure 22 is a structural diagram of embodiment 2 of the baler movement system of the present invention.

[0041] 23 is a schematic structural diagram of the present invention, the baler movement system is installed on the tension spring. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following is a detailed description of the baler movement system and baler of the present invention in conjunction with the embodiments and drawings.

[0043] <Example 1>

[0044] FIG1 is a front angle structural diagram of the baler core system of the present invention.

[0045] FIG2 is a rear-angle structural diagram of the baler core system of the present invention.

[0046] This embodiment provides a baler, more specifically, a frameless baler. The baler comprises a body, a core system 100 mounted on the body, a material belt system, and a packaged object conveying system. The material belt system is used to store and transport the baling belt, the packaged object conveying system is used to transport the objects to be packaged, and the core system 100 is used to wrap the baling belt around the objects to be packaged for packaging.

[0047] As shown in Figures 1 and 2, the movement system 100 includes a frame 10, a lever device 20, a tool device 30, a belt guide device 40 and a driving device, wherein the lever device 20 and the tool device 30 are installed on the frame 10, the lever device 20 is used to move the strapping tape into the tool device 30; the tool device 30 is used to compress the strapping tape and assist the lever device in cutting and fusing the object after it is wrapped; the belt guide device 40 is located on one side of the frame 10, and has rollers and hooks and other auxiliary components for guiding the strapping tape (existing technology, not shown in the figure) and a guide member 41 for guiding the strapping tape into the tool device 30; the driving device has a driving spindle 25 that can simultaneously drive the tool device 30 and the lever device 20 to work, and a power source (such as a manual wheel or a motor and a reducer) that drives the driving spindle 25 to rotate. The tool device 30 and the lever device 20 are simultaneously driven by the same power source and the driving spindle 25. The entire driving structure is simple, highly synchronous, and easy to control.

[0048] As shown in Figure 1, a movable plate 31 is movably provided on the frame 10, and the upper part of the movable plate 31 is used to place objects to be packaged. The tool device 30 is provided below the movable plate 31, and a belt path for the strapping tape to pass through is formed between the tool device 30 and the movable plate 31 (the direction of the arrow in the figure is the direction in which the strapping tape moves on the belt path). The strapping tape enters the belt path through the shifting lever device 20 to pack the objects to be packaged located above the movable plate 31.

[0049] <Lever device>

[0050] FIG3 is a structural diagram of the lever device of the present invention installed on a frame.

[0051] As shown in FIG3 , the lever mechanism 20 includes a lever 21, a swing arm mechanism, and a drive mechanism. The lever 21 is used to move the strapping tape and bring it into the belt path. The swing arm mechanism is movably mounted at one end of the lever 21, and the drive mechanism is used to drive the swing arm mechanism and the lever to move. Specifically, the swing arm mechanism includes a swing arm 22, a movable shaft 23, and a connector 24. One end of the swing arm 22 is welded to the movable shaft 23, and the other end is rotatably mounted at one end of the lever 21 via the connector 24. The other end of the lever 21 includes a shifting head 211 for moving the strapping tape. The drive mechanism includes a swing assembly, a shifting assembly, and a lifting assembly. Based on the coordinate axes shown in FIG1 , the swing assembly drives the swing arm 22 and lever 21 to swing in the X direction, the shifting assembly drives the lever 21 to swing in the Y direction, and the lifting assembly drives the movable shaft 23 to move in the Z direction. The swing assembly, shifting assembly, and lifting assembly are all driven by the same drive spindle 25.

[0052] FIG4 is a structural diagram of the toggle assembly of the present invention from a forward angle.

[0053] FIG5 is a structural diagram of the toggle assembly of the present invention from a top view.

[0054] As shown in Figure 4, the toggle assembly has a toggle wheel 26, a rotating rod 27 and a pull rod 28. The toggle wheel 26 can be rotated under the drive of the driving shaft 25, and the rotating rod 27 can be rotated under the drive of the toggle wheel 26. One end of the pull rod 28 is connected to the rotating rod 27, and the other end is connected to the toggle rod 21. The toggle wheel 26 is driven to rotate by the driving shaft 25, thereby driving the rotating rod 27 to swing, and the rotating rod 27 then drives the toggle rod 21 to swing through the pull rod 28.

[0055] As shown in FIG5 , a vertical mounting plate 11 is provided in the middle of the frame 10. A drive spindle 25 and a toggle assembly are located on either side of the mounting plate 11. The drive spindle 25 is connected to the toggle wheel 26 via a gear assembly. The gear assembly includes a driving bevel gear 251 fixed to the drive spindle 25, a driven bevel gear 252 meshing with the driving bevel gear 251, and a wheel axle 253. One end of the wheel axle 253 is coupled to the driven bevel gear 252, and the other end is coupled to the toggle wheel 26. A through hole 111 is defined in the mounting plate 11. The wheel axle 253 is mounted in the through hole 111 via a shaft seat 255. A bearing 256 is provided between the wheel axle 253 and the shaft seat 255. The driven bevel gear 252 is fixed to the wheel axle 253 extending from one side of the through hole 111. The other side of the wheel axle 253 is coupled to the toggle wheel 26, allowing the toggle wheel 26 to rotate under the drive spindle 25. As shown in FIG8 , the driven helical gear 252 and the axle 253 are fixed by a key connection. In practice, they can also be fixed by bolts and gaskets. In comparison, the key connection can make the connection tighter, while the bolt connection is prone to loosening after long-term use.

[0056] Referring to Figure 4 , one end of the rotating lever 27 is rotatably mounted on the mounting plate 11 via a rotating shaft 271. A pull rod 28 is mounted on the other end. A tension spring (not shown in Figure 4 , refer to tension spring 91 in Figure 22 ) is interposed between the end of the rotating lever 27 near the pull rod 28 and the mounting plate 11. This spring helps the rotating lever 27 maintain contact with the outer contour of the toggle wheel 26. A roller 52 is positioned in the middle of the rotating lever 27, capable of rolling relative to the outer edge of the toggle wheel 26. The toggle wheel 26 is a cam, with recessed portions 261 and protrusions 262 arranged at intervals along its outer edge. When the roller 52 rolls on the recessed portions 261, the toggle lever 21 swings away from the rotating lever 27. When the roller 52 rolls on the protrusions 262, the toggle lever swings toward the rotating lever. In this embodiment, the roller 52 is a bearing, with its center portion mounted on the rotating lever 27 via a mounting shaft, and its outer ring capable of rolling relative to the outer edge of the toggle wheel 26.

[0057] As shown in FIG4 , the pull rod 28 can be configured as an adjustment rod, with screws 281 at both ends of the pull rod 28 . Each screw 281 on either side is provided with a threaded connector 282 and a locking nut 283 . One end of the threaded connector 282 is threadedly connected to the screw 281 , and the other end is connected to the rotating rod 27 and the deflector 21 . By adjusting the connection distance between the threaded connector 282 and the screw 281 and locking the locking nut 283 , the installation distance between the rotating rod 27 and the deflector 21 is achieved, thereby adjusting the rotation (deflection) amplitude of the deflector 21 and adjusting the final stop position of the deflector 21 according to actual needs. Furthermore, the dial head 211 at the upper end of the deflector 21 can also be configured in an adjustable manner as shown in FIG4 . The dial head 211 is mounted on the upper end of the deflector 21 via an adjusting bolt 212 . Specifically, a strip hole is provided at the upper end of the shift rod 21 , and the adjusting bolt 212 passes through the strip hole and is fixed to the shift head 211 . When the height of the shift head 211 needs to be adjusted, the fixed position of the adjusting bolt in the strip hole can be adjusted.

[0058] FIG6 is a diagram showing the installation structure of the swing assembly of the present invention.

[0059] As shown in FIG6 , the swing assembly includes a swing wheel 29 and a swing roller 51. The swing wheel 29 is coaxially arranged with the toggle wheel 26 and is directly mounted on the toggle wheel 26. Both are driven to rotate by the drive spindle 25. The swing roller 51 is mounted on the swing arm 22 and can roll along the end surface of the swing wheel 29. The swing arm 22 is provided with a mounting seat 221. The swing roller 51 is mounted on the mounting seat 221 via a pin. As the swing roller 51 rolls along the end surface of the swing wheel 29, it also rotates about the pin.

[0060] FIG7 is a structural diagram of the swing wheel of the present invention.

[0061] FIG8 is a cross-sectional view of the swing wheel mounting structure of the present invention.

[0062] As shown in Figures 7 and 8, the swing wheel 29 includes an inner end surface 291 and an outer end surface 292. The inner end surface 291 faces the toggle wheel 26, while the outer end surface 292 faces away from the toggle wheel 26. A first protrusion 293 and a second protrusion 294 are formed outwardly on the outer end surface 292. A first channel 295 and a second channel 296 are formed between the first protrusion 293 and the second protrusion 294. The swing roller 51 can roll relative to the first channel 295, the top surface of the first protrusion 293, the second channel 296, and the top surface of the second protrusion 294. The toggle wheel 26 is mounted on the axle 253, which has a boss 263 formed in the center. A through hole 297 is formed in the center of the swing wheel 29, which is mounted around the outer periphery of the boss 263. The swing wheel 29 is then fixed to the toggle wheel 26 using screws or bolts.

[0063] Driven by the drive spindle 25, the swing wheel 29 rotates counterclockwise. At this point, the swing roller 51 rolls relative to the first channel 295, the top surface of the first protrusion 293, the second channel 296, and the top surface of the second protrusion 294. During the horizontal rolling process within the first channel 295 or the second channel 296, the pull rod 28 moves the shift lever 21 away from the rotating rod 27. At the junction of the first channel 295 and the first protrusion 293 or the second protrusion 294, or at the junction of the second channel 296 and the first protrusion 293 or the second protrusion 294, the swing roller 51 is in a climbing or descending position. During this phase, the swing arm 22 moves the shift lever 21 away from or toward the mounting plate 11, causing the shift lever 21 to swing in the X-axis direction. A tension spring 222 (as shown in FIG. 23 ) is provided between the swing arm 22 and the frame 10 to facilitate its reset.

[0064] Furthermore, since the swing roller 51 rolls relative to the outer end surface of the swing wheel 29 (the first channel, the second channel, the outer surface of the first protrusion, and the outer surface of the second protrusion), the height of the first and second protrusions relative to the main body of the swing wheel 29 directly affects the swing amplitude of the lever 21 in the forward and backward directions. In this embodiment, the first and second protrusions are positioned on the outer end surface of the swing wheel 29 (i.e., the side facing away from the mounting plate 11), allowing for a wider range of adjustment for the protrusion heights of the first and second protrusions to accommodate strapping of varying sizes. For example, if the strapping strap of the baler 100 is wider, the corresponding swing amplitude of the lever in the X-axis direction will be greater, requiring a swing wheel 29 with a higher protrusion height. Since the first and second protrusions are located on the outer end surface of the swing wheel 29, the protrusion height of the protrusions and the swinging motion of the swing arm 22 are not restricted, and a swing wheel 29 with protrusions of corresponding heights can be selected and replaced according to actual needs. In addition, the protrusion is arranged on the outside of the swing wheel, so that the swing arm 22 can be located outside the entire toggle assembly. The swing of the swing arm in the X-axis direction will not be interfered with by the toggle assembly, which is suitable for wide band use.

[0065] In this embodiment, the swing wheel 29 and the shift wheel 26 are installed together and driven by the driving main shaft 25 to rotate together, so that the shift rod 21 can swing in the horizontal direction relative to the mounting plate 11 while also being able to move in the front and rear directions relative to the mounting plate 11.

[0066] FIG9 is a diagram showing the installation structure of the lifting assembly of the present invention.

[0067] FIG10 is a perspective view of the lifting assembly of the present invention.

[0068] As shown in Figures 9 and 10, the lifting assembly includes a lifting component 61, a lifting roller 62, a lifting bracket 63, a guide post 64, and a first elastic member 65. The lifting component 61 is coupled to the movable shaft 23. The lifting roller 62 is mounted on the lifting bracket 63 and acts on the lifting component 61 to drive the lifting component 61 up and down. The lifting bracket 63 is linked to the drive spindle 25, and driven by the drive spindle 25, the lifting bracket 63 moves up and down. The guide post 64 is fixedly mounted on the mounting plate 11. The first elastic member 65 is a spring that is mounted on the upper end of the outer periphery of the guide post 64. In this embodiment, the movable shaft 23 is a hollow cylinder that is mounted on the outer periphery of the guide post 64. One end of the first elastic member 65 abuts against the movable shaft 23 to help the movable shaft 23 reset.

[0069] FIG11 is a front view of the lifting roller installation structure of the present invention.

[0070] The lifting roller 62 has a first end face 621, a second end face 622 and a peripheral surface 623. The first end face 621 is combined with the lifting bracket 63, the second end face 622 faces the movable shaft, and there is a gap between the second end face 622 and the movable shaft. The peripheral surface 623 contacts the lower end face of the lifting component 61, and the lifting roller 62 is lifted up by the lifting bracket 63. Since the lifting roller 62 is located on the lower end face of the lifting component 61, the lifting component 61 can be lifted up during the lifting process, prompting the lifting component 61 to move upward with the movable shaft 23, thereby causing the rocker arm 22 to move upward with the shift rod 21.

[0071] FIG12 is a structural diagram of the connection between the lifting assembly and the drive spindle of the present invention.

[0072] As shown in Figure 12, the drive spindle 25 is provided with a first cam 254. The lifting bracket 63 comprises a movable plate 631, a first slider assembly 632, and a support plate 633. The support plate 633 is L-shaped, with a first roller 53 that cooperates with the first cam 254 provided at one end and the other end fixed to the slider of the first slider assembly 632. The slide rail of the first slider assembly 632 is vertically mounted on the mounting plate 11. One end of the movable plate 631 is mounted on the slider of the first slider assembly 632 and can move up and down along the slide rail with the slider. The other end of the movable plate 631 is used to mount the lifting roller 62. At least two lifting rollers 62 are provided and are evenly arranged on the lower end surface of the lifting component 61, so that the lifting component 61 is evenly stressed when being lifted by the lifting roller 62. In this embodiment, the lifting component 61 is provided separately from the movable shaft 23. The lifting component 61 is in the shape of a hollow ring and is mounted on the upper end of the outer circumference of the movable shaft 23. It is secured to the movable shaft 23 from the circumferential surface by a fixing member. The movable shaft 23 is also provided with a retaining spring at the upper end surface of the lifting component 61 to axially position the movable shaft 23. Because the lifting component 61 is relatively fixed to the movable shaft 23, when the movable shaft 23 rotates (when the rocker arm 22 is driven to swing by the swing assembly), the lifting component 61 also rotates accordingly, generating a planar force between the lower end surface of the lifting component 61 and the circumferential surface of the lifting roller 62. To prevent wear, a cylindrical lifting roller 62 (with the circumferential surface of the lifting roller 62 serving as the contact surface) is used to drive the lifting component 61, thereby better protecting the various components.

[0073] <Tool device>

[0074] 13 is a front structural diagram of the tool device of the present invention installed on the frame.

[0075] As shown in FIG13 , the tool device 30 is mounted on the frame 10 and is used to compress, heat-melt, and cut the strapping tape. The tool device 30 includes a movable plate 31, a positioning knife 32, a top block 33, a cutter 34, a clamping block 35, a hot head 36, and a pressing block 37, all of which are movably mounted on the frame 10. The movable plate 31 and the hot head 36 can move forward and backward along the X-axis in the direction indicated by the coordinate axis in the figure; the top block 33, the cutter 34, the clamping block 35, and the pressing block 37 can all move up and down along the Z-axis; and the positioning knife 32 can move along the X-axis and the Z-axis. The movable plate 31 is movably mounted on the frame 10 and is used to press the strapping tape downward, forming an upper support for the strapping tape to facilitate subsequent compression, cutting, and heat-melting. At the same time, a platform for placing objects to be packaged is formed above the movable plate 31, and the objects are placed above the movable plate 31 for packaging. The top block 33 is used to cooperate with the positioning knife 32 to clamp the strapping tape in the initial position; the cutter 34 is used to cut the strapping tape after the object is wrapped; the clamping block 35 is used to press the first layer of strapping tape onto the movable plate 31; the ironing head 36 is used to heat-seal the first layer of strapping tape and the second layer of strapping tape cut by the cutter; and the pressing block 37 is used to press the strapping tape after being hot-seal by the ironing head 36. The positioning knife 32, the cutter 34, the ironing head 36, and the clamping block 35 are arranged in sequence below the movable plate 31 along the forward direction of the strapping tape; the positioning knife 32, the top block 33, the cutter 34, the ironing head 36, the clamping block 35, and the pressing block 37 are also driven by the driving spindle 25.

[0076] FIG14 is a reverse structural diagram of the tool device of the present invention installed on the frame.

[0077] As shown in Figure 14, the tool device also includes a pressure plate assembly 38 for flattening the strapping tape and pressing it on the bottom of the movable plate 31. The pressure plate assembly 38 comprises: a pressure plate 381, a rotating frame 382 and a crank 383. The pressure plate 381 is movably arranged under the movable plate 31 and is used to press the initial end of the strapping tape onto the movable plate 31; the rotating frame 382 is used to drive the pressure plate 381 to rotate; and the crank 383 is connected to the rotating frame 382.

[0078] 15 is a structural diagram of the pressure plate assembly of the present invention installed on the frame.

[0079] FIG16 is a schematic diagram of the position structure of the pressure plate assembly and the movable plate of the present invention.

[0080] As shown in Figures 15 and 16, the movable plate 31 is provided with a connecting block 311, which is provided with a guide hole 3111. One end of the pressure plate 381 is provided with a latch 3811 that can move within the guide hole 3111. Driven by the rotating frame 382, ​​the pressure plate 381 rotates relative to the connecting block 311 along the guide hole 3111. A slide assembly is also provided between the pressure plate 381 and the rotating frame 382. When the movable plate 31 moves, the connecting block 311 also moves with it. Driven by the connecting block 311, the pressure plate 381 can move relative to the rotating frame 382. Therefore, the pressure plate 381 can both rotate and move. In this embodiment, by providing a slide assembly on the rotating frame, the pressure plate can slide on the rotating upper frame, allowing the pressure plate to move synchronously with the movable plate, thereby adapting to the normal operation of the baling machine. At the same time, the rotation of the rotating frame causes the pressure plate to rotate, thereby achieving the smoothing and compression of the strapping tape. In the prior art, most of the time, a universal bearing structure is used to realize the rotation and forward and backward movement of the smoothing part, but the universal bearing has high precision and installation requirements. This embodiment adopts the above-mentioned rotating structure of the rotating frame and the sliding structure following the movable plate to realize the smoothing and pressing functions. The overall structure is simple and the installation is quick, which effectively reduces the difficulty of product manufacturing.

[0081] The driving spindle 25 is provided with a moving plate cam assembly 71 and a crank cam assembly 72 for respectively driving the moving plate 31 and the crank 383 to move. The crank 383 is driven by the crank cam assembly 72 to move vertically (i.e., in the Z direction), and the moving plate 31 is driven by the moving plate cam assembly 71 to move horizontally (i.e., in the X direction). Specifically, as shown in FIG14 , the moving plate cam assembly 71 includes a moving plate cam 711, a moving plate rocker arm 712, and a moving plate roller 713. The moving plate cam 711 is mounted on the driving spindle 25. The moving plate 31 is mounted on one end of the moving plate rocker arm 712, and the moving plate roller 713 is mounted on the other end. The moving plate roller 713 cooperates with the moving plate cam 711. As shown in Figure 16, the bottom of the movable plate 31 is provided with two fixed blocks 312a and 312b, one of which is fixed with a connecting block 311, and the other fixed block 312b is provided with a slide rail assembly between the mounting plate 11, so that the movable plate 31 can be moved on the frame 10 under the drive of the drive spindle 25, and can drive the pressing plate 381 on the connecting block 311 to move. A tension spring 92 (as shown in Figure 23) is provided between the movable plate rocker arm 712 and the frame 10 to facilitate the reset of the movable plate rocker arm 712. In addition, in order to enhance the stability of the movable plate 31 when moving, a pair of limit blocks 12 (as shown in Figure 9) and a guide groove 13 (as shown in Figure 15) are also provided at the place where the movable plate 31 is mounted on the mounting plate 11 of the frame 10. The edge of the movable plate 31 near the pressing plate 381 extends into the guide groove 13. The guide groove 13 can form a guiding effect on the movable plate 31 on the one hand, and can also form a limit on the left and right sides of the movable plate 31 on the other hand. The limit blocks 12 are located on the front side of the movable plate 31, which has a convex shape. The limit blocks 12 are located in the recessed portions on either side of the movable plate 31, limiting the forward and backward movement of the movable plate 31. Furthermore, as shown in FIG13 , the limit blocks 12 are in the shape of an inverted L, with the lateral edges of the L being able to rest on either side of the movable plate 31, thereby limiting the vertical position of the movable plate 31 and restricting its upward deformation. This effectively reduces wear and tear on the movable plate caused by the pressure from the various functional blades at the bottom and the pressure plate, thereby effectively increasing the overall lifespan of the movable plate.

[0082] As shown in Figures 14 to 16, the crank cam assembly 72 includes a crank cam 721, a crank slide 722, a crank slideway 724, and a crank roller 723. The crank cam 721 is mounted on the drive spindle 25, the crank 383 is mounted on the crank slide 722, the crank roller 723 is mounted on the crank slide 722 and cooperates with the crank cam, and the crank slide 724 is mounted on the mounting plate 11. The crank slide 722 slides on the crank slide 724. When the drive spindle 25 rotates with the crank cam 721, the crank roller 723 on the crank slide 722 moves along the outer edge of the crank cam 721, causing the crank slide 722 to slide along the crank slide 724. During the sliding process, the crank 383 drives the rotating frame 382 and the pressure plate 381 on the rotating frame 382 to rotate. A tension spring 93 is provided between the crank slide 722 and the frame 10 to facilitate the reset of the crank slide 722 .

[0083] 17 is a schematic diagram of the installation structure of the positioning knife and the top block of the present invention.

[0084] As shown in Figures 14 and 17, the driving spindle 25 is provided with a positioning knife cam group 73 and a top block cam group 74 for respectively driving the positioning knife 32 and the top block 33 to move. The top block 33 is driven by the top block cam group 74 to move vertically (i.e., in the Z direction), and the positioning knife 32 is driven by the positioning knife cam group 73 to move horizontally (i.e., in the X direction). Specifically, the positioning knife cam group 73 includes: a positioning knife cam 731, a positioning knife rocker arm 732, and a positioning knife roller 733. The positioning knife cam 731 is mounted on the driving spindle 25. The positioning knife 32 is mounted on the positioning knife rocker arm 732 via a sliding assembly. The positioning knife roller 733 is mounted on the positioning knife rocker arm 732 and cooperates with the positioning knife cam 731. When the driving spindle 25 rotates with the positioning knife cam 731, the positioning knife roller 733 on the positioning knife rocker arm 732 moves along the outer edge of the positioning knife cam 731, causing the positioning knife 32 to move upward in the X direction following the positioning knife rocker arm 732. A tension spring 94 is provided between the positioning knife rocker arm 732 and the frame 10 (as shown in Figure 23, a fixing plate 13 is provided on the frame 10, and one end of the tension spring 94 is hooked on the fixing plate 13 and the other end is hooked on the positioning knife rocker arm 732) to facilitate the resetting of the positioning knife rocker arm 732.

[0085] The ejector cam assembly 74 comprises an ejector cam 741, an ejector connecting rod 742, and an ejector roller 743. The ejector cam 741 is mounted on the drive spindle 25. The ejector 33 is mounted on the ejector connecting rod 742 via an ejector mounting plate 744. The ejector mounting plate 744 is mounted on the mounting plate 11 via a slider assembly. The ejector roller 743 is mounted on the ejector connecting rod 742 and engages with the ejector cam 741. When the drive spindle 25 rotates with the ejector cam 741, the ejector roller 743 on the ejector connecting rod 742 moves along the outer edge of the ejector cam 741, causing the ejector mounting plate 744 to slide along the slider assembly. During this sliding process, the ejector mounting plate 744 drives the ejector 33 in the Z direction. A tension spring is provided between the ejector mounting plate 744 and the frame 10 to facilitate the return of the ejector mounting plate 744.

[0086] FIG18 is a structural diagram of a positioning knife of the present invention.

[0087] As shown in Figure 18, the positioning knife 32 is F-shaped and has a first cross bar 321, a second cross bar 322 and a vertical bar 323. A sliding space 324 is formed between the second cross bar 322 and the first cross bar 321 for the top block 33 to extend and move. The vertical bar 323 is installed on the positioning knife rocker arm 732 through a slide rail assembly; when the top block 33 moves up to clamp the strap between the top block 33 and the first cross bar 321, the positioning knife 32 can also be pushed up by the top block 33; a tension spring 96 can also be set between the bottom of the vertical bar 323 and the positioning knife rocker arm 732 to pull the positioning knife 32 downward along the sliding assembly on the positioning knife rocker arm 732 for resetting.

[0088] 19 is a schematic diagram of the installation structure of the ironing knife, cutting knife and pressing block of the present invention.

[0089] As shown in Figures 14 and 19, the drive spindle 25 is provided with a cam assembly 75 and a pressure block cam assembly 76 for respectively driving the ironing head 36 and the pressing block 37. Driven by the pressure block cam assembly 76, the pressing block 37 moves vertically (i.e., in the Z direction), while driven by the cam assembly 75, the ironing head 36 moves horizontally (i.e., in the X direction) above the pressing block. Specifically, the cam assembly 75 comprises a cam 751, a rocker arm 752, and a roller 753. The cam 751 is mounted on the drive spindle 25, the ironing head 36 is mounted on the rocker arm 752, and the roller 753 is mounted on the rocker arm 752 and cooperates with the cam 751. As the drive spindle 25 rotates with the ironing head cam 751, the ironing head roller 753 on the ironing head rocker arm 752 moves along the outer edge of the ironing head cam 751, causing the ironing head 36 to move upward in the X direction following the ironing head rocker arm 752. A tension spring 97 is provided between the ironing head rocker arm 752 and the frame 10 to facilitate the reset of the ironing head rocker arm 752. As shown in Figure 23, one end of the tension spring 97 is hooked onto a fixing plate 13 mounted on the frame 10, and the other end is hooked onto the ironing head rocker arm 752.

[0090] The pressure block cam assembly 76 comprises a pressure block cam 761, a pressure block connecting rod 762, and a pressure block roller 763. The pressure block cam 761 is mounted on the drive spindle 25. The pressure block 37 is mounted on the pressure block connecting rod 762 via a pressure block mounting plate 764. The pressure block mounting plate 764 is mounted on the mounting plate 11 via a slider assembly. The pressure block roller 763 is mounted on the pressure block connecting rod 762 and cooperates with the pressure block cam 761. At the same time, the cutter 34 is also mounted on the pressure block mounting plate 764, so that the cutter 34 can also be driven by the pressure block mounting plate 764. When the drive spindle 25 rotates with the pressure block cam 761, the pressure block roller 763 on the pressure block connecting rod 762 moves along the outer edge of the pressure block cam 761, causing the pressure block mounting plate 764 to slide along the slider assembly. During the sliding process, the pressure block mounting plate 764 drives the cutter 34 and the pressure block 37 to move in the Z direction. A tension spring 98 is provided between the pressure block mounting plate 764 and the frame 10 to facilitate the resetting of the pressure block mounting plate 764 .

[0091] FIG20 is a schematic diagram of the installation structure of the clamping block of the present invention.

[0092] The drive spindle 25 is provided with a clamp cam assembly 77 for driving the clamp 35. The clamp cam assembly 77 comprises a clamp cam 771, a clamp connecting rod 772, and a clamp roller 773. The clamp cam 771 is mounted on the drive spindle 25. The clamp is mounted on the clamp connecting rod 772 via a clamp mounting plate 774. A slider assembly is provided between the clamp mounting plate 774 and the mounting plate 10. The clamp roller 773 is mounted on the clamp connecting rod 772 and engages with the clamp cam 771. When the drive spindle 25 rotates with the clamp cam 771, the clamp roller 773 on the clamp connecting rod 772 moves along the outer edge of the clamp cam 771, causing the clamp mounting plate 774 to slide along the slider assembly. During this sliding process, the clamp mounting plate 774 drives the clamp 35 to move in the Z direction. A tension spring 99 is provided between the clamp mounting plate 774 and the frame 10 to facilitate the reset of the clamp mounting plate 774. The slide rail assembly or slider assembly mentioned above is a linear rail assembly formed by a slider and a linear rail, which has a simple and stable structure.

[0093] As shown in FIG13 , the frame is further provided with a mounting spindle 39. The movable plate rocker arm 712, the ironing head rocker arm 752, and the positioning knife rocker arm 732 are each provided with a movable plate sleeve 7121, an ironing head sleeve 7521, and a positioning knife sleeve 7321 at one end, respectively. The movable plate sleeve 7121, the ironing head sleeve 7521, and the positioning knife sleeve 7321 are all sleeved on the mounting spindle 39. The mounting spindle 39 and the driving spindle 25 are respectively placed on either side of the mounting plate 11. The pressure block connecting rod 762, the ejector connecting rod 742, and the clamping block connecting rod 772 are all L-shaped, with corresponding pressure block rollers 763, ejector rollers 743, and clamping block rollers 773 mounted on one end and corresponding pressure block mounting plates 764, ejector mounting plates 744, and clamping block mounting plates 774 mounted on the other end. This allows the rollers and mounting plates to be placed on either side of the mounting plate 11, resulting in a compact overall structure and a more rational layout. In addition, the pressure block 37, the top block 33 and the clamping block 35 are respectively set on the corresponding pressure block mounting plate 764, the top block mounting plate 744 and the clamping block mounting plate 774 through springs and adjusting nuts, so as to facilitate fine-tuning and movement during operation.

[0094] The lever 21 has a first position and a second position in the process of moving the strapping tape. When the lever 21 swings to the first position, the clamping block 35 moves upward to clamp the strapping tape between the clamping block 35 and the movable plate 31; when the lever 21 swings to the second position, the top block 33 moves upward to clamp the strapping tape between the top block 33 and the positioning knife 32, and then the cutter 34 moves upward to cut the strapping tape; the second position is located in the gap between the ironing head 36 and the cutter 34, and the ironing head 36 hot-melts the strapping tape after the strapping tape is cut by the cutter 34.

[0095] The process of packaging objects by the packaging machine of the present invention is as follows:

[0096] Figure 21 is a schematic diagram of the state of the strapping belt of the strapping machine of the present invention during the strapping process.

[0097] As shown in Figure 21a, the object 81 to be packaged is waiting to be sent to the packaging platform 82 (the packaging platform 82 is located in the upper area of ​​the movable plate 31). At the initial position, the head end of the strapping tape 83 is clamped between the positioning knife 32 and the top block 33, and the lever 21 is located near the strapping tape 83. When the machine is started, the object 81 begins to move in the direction of the arrow in the figure until one side of the object 81 (the left side in the figure) moves beyond the clamping block 35. Then, the lever 21 starts to move the strapping tape for the first time: the lever 21 moves the strapping tape 83 in the direction of the object 81. Since the lever 21 is in a rotating state, the strapping tape 83 is pushed to the bottom of the movable plate 31. During this period, the movable plate 31 moves out along the X-axis direction to the top of the strapping tape. During this moving process, the head end of the strapping tape is always clamped.

[0098] As shown in FIG21b, after the strapping tape 83 has wrapped around a portion of the object 81, the lever 21 swings to the first position (at the rear side of the clamping block 35, where the rear side refers to the forward direction of the strapping tape, the initial position is the front, and the position after the lever is moved is the rear). The clamping block 35 moves upward along the Z axis, gradually clamping the first layer of strapping tape 831 between the clamping block 35 and the movable plate 31. After the strapping tape is clamped by the clamping block 35 and the movable plate 31, the lever 21 begins to withdraw, i.e., it moves out of the strapping tape and returns to the initial position. At the same time, during the withdrawal of the lever 21, the top block 33 moves downward along the Z axis, and the positioning knife 32 retreats along the X axis, so that the head end of the strapping tape 83 is released.

[0099] As shown in Figure 21c, after the leading end of the strapping tape 83 is released, the pressing plate 381 rotates to flatten the leading end of the strapping tape 83 and press it tightly between the pressing plate 381 and the movable plate 31. Next, the tape guide 40 pushes the strapping tape under the movable plate 31 to wrap the object. The lever 21 then moves the strapping tape 83 a second time, causing the subsequent strapping tape 83 to cling to the outside of the object and enter under the first layer of strapping tape 831, thereby forming a second layer of strapping tape 832.

[0100] As shown in Figure 21d, in the process of the lever 21 moving the strapping tape, the second layer of strapping tape 832 is bent at the lever 21 and located on the upper and lower sides of the lever head 211. At the same time, the pressure plate 381 retreats away from the first layer of strapping tape 831, and the positioning knife 32 and the top block 33 start to move. During this process, the ironing head 36 will also extend to the bottom of the first layer of strapping tape 831. When the lever 21 moves to the position between the cutter 34 and the ironing head 36 (that is, when it is in the second position), it will stay for a while, and the positioning knife 32 and the top block 33 will clamp the end of the second layer of strapping tape, and then the cutter 34 moves up to cut the second layer of strapping tape 832 along the top block 33.

[0101] As shown in Figure 21e, after the second layer of strapping tape 832 is cut off, the shifting rod 21 will continue to swing toward the direction of the rotating rod to smooth out the second layer of strapping tape 832 located below the shifting head 211 along the bottom of the ironing head. At the same time, the pressing block 37 is also gradually moving upward, gradually pressing the second layer of strapping tape 832 to the bottom of the ironing head. When the shifting rod 21 is separated from the strapping tape, the ironing head 36 is already located between the first layer of strapping tape 831 and the second layer of strapping tape 832, and then the two layers of strapping tape are hot-melt.

[0102] As shown in Figure 21f, after hot melting, the ironing head 36 retreats and withdraws from the strapping tape, and the pressing block 37 continues to move upward to press the two layers of strapping tape together. After the strapping tape is pressed together, the movable plate 31, the pressing block 37, and the clamping block 35 are gradually withdrawn and returned to their original positions. The strapping tape located below the movable plate 31 will automatically adhere to the bottom of the object after the movable plate 31 is withdrawn, thereby completing the packaging of the object.

[0103] <Example 2>

[0104] Figure 22 is a structural diagram of embodiment 2 of the baler movement system of the present invention.

[0105] This embodiment is basically the same as the above-mentioned embodiment 1, except that, as shown in Figure 22, the structure of the rotating rod 27 is slightly different. The upper end of the rotating rod 27, that is, the end close to the mounting pull rod 28, is extended to form a connecting protrusion 272, and a connecting column is provided on the connecting protrusion 272. One end of the tension spring 91 is hooked on the connecting column, and the other end is hooked on the connecting column installed on the mounting plate 11.

[0106] The above embodiments are only used to illustrate specific implementations of the present invention, and the present invention is not limited to the description scope of the above embodiments.

Claims

1. The core system for a strapping machine is installed on the strapping machine and is used to wind a strapping band around an object to be strapped for strapping. It is characterized in that it includes: a frame on which a moving plate is movably arranged; a cutter device installed below the moving plate and used for clamping, heat melting and cutting the strapping band; a lever device installed on the frame and used for dialing the strapping band between the moving plate and the cutter device; and a driving device used for driving the lever device and the cutter device; wherein, the lever device includes: a lever for dialing the strapping band; a swing arm movably installed at one end of the lever; a swing assembly for driving the swing arm to swing; and a dialing assembly for driving the lever to move; The driving device has a driving main shaft for driving the swing assembly and the dialing assembly to work.

2. The core system for a strapping machine according to claim 1, characterized in that wherein the dialing assembly has: a dialing wheel that rotates driven by the driving main shaft; a rotating rod that rotates driven by the dialing wheel; and a pull rod, one end of which is connected to the rotating rod and the other end is connected to the lever; The swing assembly has: a swing wheel coaxially arranged with the dialing wheel, a swing roller that rolls on the swing wheel, The swing roller is installed on the swing arm.

3. The core system for a strapping machine according to claim 2, characterized in that wherein the swing wheel includes: an inner end face facing the dialing wheel, an outer end face facing away from the dialing wheel, a first convex block and a second convex block protrude outward on the outer end face, and a first channel and a second channel are formed between the first convex block and the second convex block, and the swing roller can relatively roll along the first channel and the second channel.

4. The core system for a strapping machine according to claim 2, characterized in that wherein a roller that can relatively roll along the outer edge of the dialing wheel is arranged in the middle of the rotating rod, and the outer edge of the dialing wheel has a concave part and a convex part. When the roller rolls on the concave part, the lever swings toward the side away from the rotating rod; when the roller rolls on the convex part, the lever swings toward the side close to the rotating rod.

5. The core system for a strapping machine according to any one of claims 1-4 It is characterized in that ， wherein, a movable shaft is fixedly arranged on the side of the swing arm away from the lever, and the driving mechanism further includes a lifting assembly for driving the movable shaft to move in the vertical direction. The lifting assembly has: a lifting part integrally arranged or separately fixed with the movable shaft; a lifting roller acting on the lifting part and driving the lifting part to move up and down; and a lifting bracket for installing the lifting roller and linked with the driving main shaft. Driven by the driving main shaft, the lifting bracket moves up and down; The lifting roller has: a first end face combined with the lifting bracket; a second end face having a gap with the movable shaft; a peripheral surface in contact with the lower end face of the lifting part. ​ 6. The core system for a strapping machine according to any one of claims 1-4 ， Characterized in that wherein the cutting tool device includes: a positioning knife for clamping the strapping band; a top block for cooperating with the positioning knife to clamp the strapping band; a cutting knife for cutting the strapping band; a hot head for heat-melting the strapping band after being cut by the cutting knife; a clamping block for pressing the strapping band onto the moving plate; and a pressing block for pressing the strapping band after being heat-melted by the hot head; the positioning knife, the cutting knife, the hot head and the clamping block are sequentially arranged on the frame along the advancing direction of the strapping band.

7. The core system for a strapping machine according to claim 6, characterized in that wherein the dial rod has a first position and a second position during the process of dialing the strapping band. When the dial rod swings to the first position, the clamping block moves upward to clamp the strapping band between the clamping block and the moving plate; when the dial rod swings to the second position, the top block moves upward to clamp the strapping band between the top block and the positioning knife, and then the cutting knife moves upward to cut the strapping band; the second position is located between the hot head and the cutting knife, and the hot head heat-melts the strapping band after it is cut by the cutting knife.

8. The core system for a strapping machine according to claim 6, characterized in that wherein the positioning knife, the top block, the cutting knife, the hot head, the clamping block and the pressing block are all movably arranged on the frame, and a moving plate cam group, a positioning knife cam group, a top block cam group, a cutting knife cam group, a hot head cam group, a clamping block cam group and a pressing block cam group are arranged on the driving main shaft respectively for driving the moving plate, the positioning knife, the top block, the cutting knife, the hot head, the clamping block and the pressing block to move.

9. The core system for a strapping machine according to any one of claims 1-4, characterized in that wherein a pressing plate assembly is also movably arranged below the moving plate on the frame, and the pressing plate assembly has: a pressing plate for pressing the end of the strapping band onto the moving plate; a rotating frame for driving the pressing plate to rotate; and a crank connected to the rotating frame; a connecting block is arranged on the moving plate, a guiding hole is opened on the connecting block, a plug pin that can move in the guiding hole is arranged at one end of the pressing plate, and driven by the rotating frame, the pressing plate rotates relative to the connecting block along the guiding hole; a sliding rail assembly is also arranged between the pressing plate and the rotating frame, and driven by the connecting block, the pressing plate moves relative to the rotating frame.

10. A strapping machine Characterized in that at least includes: a machine body; a tape system for storing and conveying the strapping band; a packing material conveying system for transporting the object to be strapped; and a core system installed on the machine body for winding the strapping band around the object to be strapped for packing; Among them, the movement system is the movement system for a packing machine as described in any one of claims 1-9.

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