A self-steering strapping machine for food packing boxes

Abstract

The present invention relates to the field of packaging and strapping, and in particular to a self-steering strapping machine for food packaging boxes. The technical problem is that during the transfer process, due to the inability to ensure the strapping state of the packing belt, two abnormal states of being pulled too tightly and not being tightened easily occur, and then problems such as damage to the packaging box and detachment of the packing belt occur, affecting the normal transfer of the packaging box. The technical solution is: a self-steering strapping machine for food packaging boxes, including a base, a first moving block, a moving system, a gasket insertion system, a winding system, etc.; a first moving block is slidably connected to both the front side and the rear side of the first slide rail; the base is connected with a moving system; both of the two first moving blocks are connected with a gasket insertion system; the moving system is connected with a winding system. By cutting oblique incisions at both ends of the packing belt through the card insertion system, the thickness after the two ends of the packing belt overlap is increased, and thus the fixing effect after the U-shaped iron sheet is pressed against both ends of the packing belt can be increased.

Description

Technical Field

[0001] The invention relates to the field of packaging and bundling, and in particular to a self-service steering bundling machine for food packaging boxes. Background Art

[0002] In the prior art, in order to facilitate the movement of the packaging box filled with salt and prevent the packaging box from becoming loose, a strapping tape is usually tied on the packaging box to protect the packaging box.

[0003] The existing method of tying the strapping tape on the packaging box is: manually wrapping the strapping tape around the packaging box, then tightening the strapping tape by a tensioner, and then manually fixing the two ends of the strapping tape by a U-shaped iron sheet, so as to achieve bundling.

[0004] In the process of the tensioner tightening the strapping tape, there are two phenomena. The first is that it is pulled too tight, which causes serious deformation of the edge of the packaging box, thereby affecting the overall appearance of the packaging box. In severe cases, it is easy to cause the packaging box to rupture, and then cause the salt bags in the packaging box to fall off during transportation, causing damage to the salt bags. The second is that it is not tightened, which causes the strapping tape to continuously move during transportation, and then continuously rub against the packaging box, thereby causing damage to the packaging box. At this time, the strapping tape also loses its fixing effect.

[0005] The Chinese patent with application number CN210028071U discloses a fully automatic strapping machine, which is aimed at the problem that the existing strapping machine is manual, first tightens the strapping tape with a tensioner, and then clamps and fastens the two ends of the strapping tape with fasteners using tools such as clamps, and its operation is relatively cumbersome. The patent discloses a fully automatic strapping machine, which flips the strapping tape to the upper side of the packaging box through the rotation of the first rotating rod and the second rotating rod. At this time, the strapping tape is parallel and close to the pallet, and the push block is pushed by the second electric push rod to push the U-shaped iron sheet into the slide-out groove, so that the U-shaped iron sheet is stuck to the parallel strapping tape. Subsequently, the U-shaped iron sheet is flattened and the strapping tape is fastened by the stamping of the pressing cylinder, and the automatic strapping of the packaging box is completed, with high packaging efficiency, overcoming the problems pointed out. However, during this operation, the strapping tape is directly flipped to the upper side of the packaging box through the rotation of the first rotating rod and the second rotating rod to achieve tightening. This method is easy to pull too tight, which easily causes the packaging bag to deform.

[0006] Furthermore, since the two ends of the strapping tape are fixed by a U-shaped iron sheet, it is easy for the U-shaped iron sheet to fail to clamp the two ends of the strapping tape tightly. As a result, during the transportation of the packaging box full of salt, the two ends of the strapping tape are easy to separate. Moreover, since the packaging box full of salt is heavy, the two ends of the strapping tape are more likely to separate. Summary of the invention

[0007] In order to overcome the disadvantages that during the transportation process, due to the inability to guarantee the bundling state of the packing straps, two abnormal states of being pulled too tightly and not being tightened easily occur, which in turn lead to problems such as damage to the packing box and detachment of the packing straps, affecting the normal transportation of the packing box, the present invention provides a self - steering bundling machine for food packing boxes.

[0008] Technical solution: A self - steering bundling machine for food packing boxes includes a base, a gantry, a first slide rail, a first moving block, a slider, a moving system, a gasket insertion system, a winding system, and a card insertion system; the base is fixedly connected with the gantry; the gantry is fixedly connected with the first slide rail; a first moving block is slidably connected to both the front side and the rear side of the first slide rail; a slider is slidably connected to both the front side and the rear side of the base; the base is connected with the moving system; both first moving blocks are connected with the gasket insertion system, and the gasket insertion system is connected with the base, the gantry, and the slider; the moving system is connected with the winding system; the gasket insertion system is connected with the card insertion system; the moving system is used to rotate the packing box; the gasket insertion system is used to insert the gasket onto the surface of the packing box; the winding system is used to wind the packing strap onto the surface of the packing box.

[0009] Further, the moving system includes a second slide rail, a second moving block, a first mounting frame, a first motor, and a bearing platform; the base is fixedly connected with the second slide rail; the second moving block is slidably connected to the right side of the second slide rail; the second moving block is fixedly connected with the first mounting frame; the first mounting frame is fixedly connected with the first motor; the output shaft of the first motor is fixedly connected with the bearing platform; the second slide rail is connected with the winding system; the bearing platform is used to support the packing box.

[0010] Further, the gasket insertion system includes a gasket conveying component, a gasket insertion component, a limiting component, and a folding component; both first moving blocks are connected with the gasket conveying component, and the gasket conveying component is connected with the slider; the gasket conveying component is connected with the gasket insertion component; the gasket conveying component is connected with the limiting component; the gantry is connected with the folding component, and the folding component is connected with the gasket conveying component, the base, and the slider; the gasket conveying component is used to convey the gasket; the gasket insertion component is used to insert the gasket into the folding component; the folding component is used to fold the gasket.

[0011] Furthermore, the gasket conveying assembly includes a first rectangular frame, a third slide rail, a third moving block, a pushing plate, and a second rectangular frame; a second rectangular frame is fixedly connected to each of the front first moving block and the rear first moving block; a first rectangular frame is fixedly connected to each of the front second rectangular frame and the rear second rectangular frame, and both first rectangular frames are fixedly connected to their corresponding sliders; a third slide rail is jointly fixedly connected to the front first rectangular frame and the front second rectangular frame; another third slide rail is jointly fixedly connected to the rear first rectangular frame and the rear second rectangular frame; a third moving block is slidably connected to both the upper side and the lower side of the front third slide rail; another third moving block is slidably connected to both the upper side and the lower side of the rear third slide rail; a pushing plate is fixedly connected to each of the two upper third moving blocks, and both the two upper pushing plates are slidably connected to their corresponding second rectangular frames; a pushing plate is fixedly connected to each of the two lower third moving blocks, and both the two lower pushing plates are slidably connected to their corresponding first rectangular frames; a gasket inserting assembly is connected to both the two first rectangular frames and the two second rectangular frames; a gasket inserting assembly is connected to both the two first rectangular frames; a corner folding assembly is connected to both the two second rectangular frames; both the first rectangular frame and the second rectangular frame are used for storing gaskets.

[0012] Furthermore, the gasket inserting assembly includes a first push rod, a sleeve plate, a first pushing plate, a receiving plate, and a first elastic member; a sleeve plate is fixedly connected to each of the two first rectangular frames; another sleeve plate is fixedly connected to each of the two second rectangular frames; a first push rod is fixedly connected to both the left side and the right side of each of the two first rectangular frames; another first push rod is fixedly connected to both the left side and the right side of each of the two second rectangular frames; a first pushing plate is jointly fixedly connected to the telescopic parts of every two adjacent first push rods, and each first pushing plate is slidably connected to its corresponding sleeve plate; a receiving plate is slidably connected to each first pushing plate; two first elastic members are fixedly connected to each receiving plate, and every two adjacent first elastic members are fixedly connected to their corresponding first pushing plates; the receiving plate is used for receiving gaskets.

[0013] Furthermore, the limiting assembly includes a first mounting plate, a second push rod, a fixing frame, and a support plate; a first mounting plate is fixedly connected to each of the two opposite sides of the two first rectangular frames; a second push rod is fixedly connected to both the upper side and the lower side of each of the two first mounting plates, and the upper second push rod and the lower second push rod are mirror - image distributed; a fixing frame is fixedly connected to the telescopic part of each second push rod; a support plate is fixedly connected to each fixing frame; all four support plates are used for limiting their corresponding receiving plates.

[0014] Further, the folding component includes a first mounting bracket, a third push rod, a fourth slide rail, a fourth moving block, a fourth push rod, a first pressing plate, a second pushing plate, a second elastic member, a second mounting plate, a fifth push rod, a first folding plate, an inclined convex block, and a folding unit; the gantry is fixedly connected with the first mounting bracket; the first mounting bracket is fixedly connected with two third push rods; the telescopic parts of the two third push rods are jointly fixedly connected with the fourth slide rail; a fourth moving block is slidably connected to both the front side and the rear side of the fourth slide rail; a fourth push rod is fixedly connected to both the front fourth moving block and the rear fourth moving block; the telescopic parts of the front fourth push rod and the rear fourth push rod are both fixedly connected with a first pressing plate, and a first groove is formed in each of the two first pressing plates; a first triangular convex part is provided on each of the two first pressing plates; a second pushing plate is slidably connected to both the front first pressing plate and the rear first pressing plate; the rear first pressing plate is fixedly connected with the inclined convex block; a second elastic member is fixedly connected to both the front second pushing plate and the rear second pushing plate, and each second elastic member is fixedly connected with the first pressing plate corresponding to it; a second mounting plate is fixedly connected to both the front second rectangular frame and the rear second rectangular frame; a fifth push rod is fixedly connected to each of the two second mounting plates; the telescopic parts of the two fifth push rods are both fixedly connected with a first folding plate, and a second triangular convex part is provided on each of the two first folding plates; the base is connected with the folding unit, and the folding unit is connected with the two sliders; the first mounting bracket is connected with a card insertion system; the first pressing plate and the packaging box cooperate with each other to limit the gasket.

[0015] Further, the folding unit includes a second mounting bracket, a sixth push rod, a fifth slide rail, a fifth moving block, a seventh push rod, a second pressing plate, a third pushing plate, a third elastic member, a third mounting plate, an eighth push rod, and a second folding plate; the base is fixedly connected with the second mounting bracket; the second mounting bracket is fixedly connected with two sixth push rods; the telescopic parts of the two sixth push rods are jointly fixedly connected with the fifth slide rail; a fifth moving block is slidably connected to both the front side and the rear side of the fifth slide rail; a seventh push rod is fixedly connected to both the front fifth moving block and the rear fifth moving block; the telescopic parts of the front seventh push rod and the rear seventh push rod are both fixedly connected with a second pressing plate, and a third groove is formed in each of the two second pressing plates; a third triangular convex part is provided on each of the two second pressing plates; a third pushing plate is slidably connected to both the front second pressing plate and the rear second pressing plate; a third elastic member is fixedly connected to both the front third pushing plate and the rear third pushing plate; each third elastic member is fixedly connected with the second pressing plate corresponding to it; a third mounting plate is fixedly connected to each of the two sliders; an eighth push rod is fixedly connected to each of the two third mounting plates; the telescopic parts of the two eighth push rods are both fixedly connected with a second folding plate, and a fourth triangular convex part is provided on each of the two second folding plates; the second pressing plate and the packaging box cooperate with each other to limit the gasket.

[0016] Further, the winding system includes a sixth moving block, a second mounting frame, a second motor, a first rotating shaft rod, a long plate, a ninth push rod, and an electric clamp; the right side of the second slide rail is slidably connected with the sixth moving block; the sixth moving block is fixedly connected with the second mounting frame; a second motor is fixedly connected to the front side and the rear side of the second mounting frame respectively; the output shafts of the front second motor and the rear second motor are both fixedly connected with a first rotating shaft rod, and both first rotating shaft rods are rotatably connected with the second mounting frame; a long plate is fixedly connected to both the front first rotating shaft rod and the rear first rotating shaft rod, the front long plate and the rear long plate are arranged in a staggered manner, and the front long plate is shorter than the rear long plate; a ninth push rod is fixedly connected to both long plates; an electric clamp is fixedly connected to both ninth push rods; the electric clamp is used for clamping the packing tape.

[0017] Further, the card inserting system includes a first bearing plate, a third rectangular frame, a tenth push rod, a fourth pushing plate, a second rotating shaft rod, a wedge block, a torsion spring, a third motor, a second bearing plate, an eleventh push rod, a cutting knife, and a third pressing plate; the first mounting frame is fixedly connected with the first bearing plate; the first bearing plate is fixedly connected with the third rectangular frame; two tenth push rods are fixedly connected to the third rectangular frame; the telescopic parts of the two tenth push rods are jointly fixedly connected with the fourth pushing plate; a second rotating shaft rod is fixedly connected to the front side and the rear side of the third rectangular frame respectively; a wedge block is rotatably connected to both second rotating shaft rods; a torsion spring is sleeved on the outer surface of both second rotating shaft rods, and the torsion spring is connected with the wedge block and the third rectangular frame; a third motor is fixedly connected to the front side and the rear side of the first mounting frame respectively; the output shafts of the front third motor and the rear third motor are both fixedly connected with a second bearing plate; an eleventh push rod is fixedly connected to both the front second bearing plate and the rear second bearing plate; the telescopic part of the front eleventh push rod is fixedly connected with the third pressing plate; the telescopic part of the rear eleventh push rod is fixedly connected with the cutting knife; the wedge block is used for expanding the U-shaped card; the cutting knife is used for cutting the packing tape.

[0018] Beneficial effects: The packing tape is restricted by the gasket inserting system, preventing the winding system from pulling the packing tape too tightly when directly flipping the packing tape to the upper side of the packing box, which may cause damage to the packing box. The gasket inserting system transfers the gasket to the surface of the packing box in advance and forms an L shape. Then, when the winding system continues to pull the packing tape, due to the presence of the gasket, it plays a role in protecting the packing box. And the card inserting system cuts oblique incisions at both ends of the packing tape in advance. Then, during the process of the winding system pulling the two ends of the packing tape closer to each other, the oblique incisions cut at both ends of the packing tape restrict each other, thereby determining the tightened state of the packing tape. In this way, the packing box is protected by the gasket and the oblique incisions cut at both ends of the packing tape, preventing the problem that the winding system pulls the packing tape too tightly, resulting in serious deformation of the edge of the packing box.

[0019] The two iron sheets of the U-shaped iron sheet are expanded through the card insertion system, so as to prevent the two iron sheets of the U-shaped iron sheet from approaching each other, resulting in the inability of the card insertion system to clamp the U-shaped iron sheet to the overlapping position of the two ends of the packing belt, and to prevent the problem that the U-shaped iron sheet cannot be normally clamped to the overlapping position of the two ends of the packing belt due to the increased thickness after the two ends of the packing belt overlap at this time;

[0020] By cutting oblique incisions at both ends of the packing belt through the card insertion system, the thickness after the two ends of the packing belt overlap is increased, so as to increase the fixing effect after the U-shaped iron sheet is pressed against the two ends of the packing belt, and to prevent the problem that the two ends of the packing belt are prone to detachment during the transportation of the salt-filled packing box due to the U-shaped iron sheet not clamping the two ends of the packing belt tightly. Brief Description of the Drawings

[0021] Figure 1 It is the first structural schematic diagram disclosed by the food packing box self-steering bundling machine of the present invention;

[0022] Figure 2 It is the second structural schematic diagram disclosed by the food packing box self-steering bundling machine of the present invention;

[0023] Figure 3 It is the third structural schematic diagram disclosed by the food packing box self-steering bundling machine of the present invention;

[0024] Figure 4 It is the structural schematic diagram of the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0025] Figure 5 It is the first partial structural schematic diagram of the gasket conveying component and the gasket insertion component in the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0026] Figure 6 It is the second partial structural schematic diagram of the gasket conveying component and the gasket insertion component in the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0027] Figure 7 It is the first partial structural schematic diagram of the folding angle component in the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0028] Figure 8 It is the second partial structural schematic diagram of the folding angle component in the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0029] Figure 9 It is the third partial structural schematic diagram of the folding angle component in the gasket insertion system disclosed by the food packing box self-steering bundling machine of the present invention;

[0030] Figure 10 It is a schematic diagram of the fourth part of the corner folding component in the gasket insertion system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0031] Figure 11 It is a schematic diagram of the fifth part of the corner folding component in the gasket insertion system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0032] Figure 12 It is a schematic diagram of the first structure of the winding system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0033] Figure 13 It is a schematic diagram of the second structure of the winding system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0034] Figure 14 It is a schematic diagram of the state of the gasket disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0035] Figure 15 It is a schematic diagram of the first structure of the card insertion system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0036] Figure 16 It is a schematic diagram of the second structure of the card insertion system disclosed by the self - steering strapping machine for food packaging boxes of the present invention;

[0037] Figure 17 It is a schematic diagram of the third structure of the card insertion system disclosed by the self - steering strapping machine for food packaging boxes of the present invention.

[0038] Reference numerals in the drawings: 1 - base, 2 - gantry, 3 - first slide rail, 4 - first moving block, 5 - slider, 101 - second slide rail, 102 - second moving block, 103 - first mounting frame, 104 - first motor, 105 - placing table, 201 - first rectangular frame, 202 - third slide rail, 203 - third moving block, 204 - pushing plate, 205 - second rectangular frame, 211 - first push rod, 212 - sleeve plate, 213 - first pushing plate, 214 - receiving plate, 215 - first elastic member, 221 - first mounting plate, 222 - second push rod, 223 - fixing frame, 224 - support plate, 231 - first mounting bracket, 232 - third push rod, 233 - fourth slide rail, 234 - fourth moving block, 235 - fourth push rod, 236 - first pressing plate, 237 - second pushing plate, 238 - second elastic member, 239 - second mounting plate, 2310 - fifth push rod, 2311 - first folding plate, 2312 - inclined convex block, 241 - second mounting bracket, 242 - sixth push rod, 243 - fifth slide rail, 244 - fifth moving block, 245 - seventh push rod, 246 - second pressing plate, 247 - third pushing plate, 248 - third elastic member, 249 - third mounting plate, 2410 - eighth push rod, 2411 - second folding plate, 301 - sixth moving block, 302 - second mounting frame, 303 - second motor, 304 - first rotating shaft rod, 305 - long plate, 306 - ninth push rod, 307 - electric clamp, 401 - first bearing plate, 402 - third rectangular frame, 403 - tenth push rod, 404 - fourth pushing plate, 405 - second rotating shaft rod, 406 - wedge block, 407 - torsion spring, 408 - third motor, 409 - second bearing plate, 4010 - eleventh push rod, 4011 - cutting knife, 4012 - third pressing plate, 236a - first groove, 236b - first triangular convex portion, 236c - rectangular convex portion, 236d - second groove, 2311a - second triangular convex portion, 246a - third groove, 246b - third triangular convex portion, 2411a - fourth triangular convex portion. Detailed implementation manners

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners, but the protection scope and application scope of the present invention are not limited.

[0040] Embodiment 1

[0041] A self - steering strapping machine for food packaging boxes, as Figure 1-17As shown in the figure, it includes a base 1, a gantry 2, a first slide rail 3, a first moving block 4, a slider 5, a moving system, a gasket insertion system, a winding system, and a card insertion system; the base 1 is bolted to the gantry 2; the gantry 2 is bolted to the first slide rail 3; a first moving block 4 is slidably connected to both the front and rear sides of the first slide rail 3; a slider 5 is slidably connected to both the front and rear sides of the base 1; the base 1 is connected to the moving system; both of the two first moving blocks 4 are connected to the gasket insertion system, and the gasket insertion system is connected to the base 1, the gantry 2, and the slider 5; the moving system is connected to the winding system; the gasket insertion system is connected to the card insertion system; through the card insertion system, the U-shaped card can be quickly clamped onto the packing belt.

[0042] When the present invention is working, first, the operator manually puts the gasket into the gasket insertion system and puts the U-shaped iron sheet into the card insertion system, and then manually places the packing belt in the winding system, and the winding system clamps both ends of the packing belt, thus completing the preparatory work in advance;

[0043] Then, manually place the packing box in the mobile system, restrict the packing box through the mobile system, then transfer the packing box to below the gasket insertion system through the mobile system, and then transfer the gasket to the surface of the packing box through the gasket insertion system. At this time, the gasket insertion system and the packing box cooperate with each other to restrict the gasket, and during this process, the gasket insertion system will perform the first pressing on the gasket to press out the inclined groove. Then, the gasket insertion system performs a folding angle treatment on the gasket to make the gasket form an L shape, and during this folding angle treatment process, the gasket will be pressed for the second time to press out the inclined groove. In this way, an L-shaped inclined groove is pressed out on the surface of the gasket. Then, drive the packing tape close to the packing box through the winding system, and then turn the packing tape to the upper side of the packing box through the winding system. During this turning process, drive the two ends of the packing tape to move away from each other through the winding system, and the winding system will align the packing tape with the L-shaped inclined groove pressed out on the gasket. At this time, the L-shaped inclined groove will restrict the packing tape, thereby achieving a preliminary positioning effect. And at this time, the gasket insertion system will restrict the packing tape to prevent the winding system from directly turning the packing tape to the upper side of the packing box, resulting in the packing tape being pulled too tightly and thus damaging the packing box. Then, cooperate with each other through the gasket insertion system and the card insertion system to cut out inclined notches at both ends of the packing tape, and then continue to pull the packing tape through the winding system to quickly tighten the packing tape. At this time, due to the presence of the gasket, it plays a role in protecting the packing box. And during this process, drive the two ends of the packing tape to move closer to each other through the winding system. At this time, because the card insertion system has previously cut out inclined notches at both ends of the packing tape, during the process of moving closer to each other, the two ends of the packing tape overlap with each other through the previously cut out inclined notches. During the overlapping process, when the two ends of the packing tape are completely overlapped, at this time, the two ends of the packing tape are restricted by the previously cut out inclined notches, so the winding system cannot continue to pull the packing tape, thereby determining the tightened state of the packing tape. In this way, the packing box is protected by means of the gasket and cutting out inclined notches at both ends of the packing tape, thereby preventing the winding system from pulling the packing tape too tightly and causing serious deformation at the edge of the packing box. Then, push the U-shaped iron sheet to the overlapping position of both ends of the packing tape through the card insertion system. During this process, the card insertion system will expand the two iron sheets of the U-shaped iron sheet by expanding, thereby preventing the two iron sheets of the U-shaped iron sheet from approaching each other due to mutual extrusion during transportation, resulting in the card insertion system being unable to clamp the U-shaped iron sheet to the overlapping position of both ends of the packing tape. And in this way, it can also prevent the U-shaped iron sheet from being unable to be normally clamped to the overlapping position of both ends of the packing tape due to the increased thickness after the two ends of the packing tape overlap. Then, cooperate with each other through the gasket insertion system and the card insertion system to quickly press and fit the U-shaped iron sheet. At this time, due to the increased thickness after the two ends of the packing tape overlap, its fixing effect can be increased, thereby preventing the U-shaped iron sheet from not clamping both ends of the packing tape tightly, resulting in the phenomenon that both ends of the packing tape are prone to detachment during the process of transporting the packing box filled with salt;

[0044] Then, release the clamping on both ends of the strapping tape through the winding system, and then control the winding system to move away from the packaging box. At the same time, drive the packaging box away from the gasket insertion system by controlling the moving system. Then, drive the packaging box to rotate through the moving system to change the direction of the packaging box. Then, perform strapping on the other side of the packaging box in the above manner to quickly work on both sides of the packaging box.

[0045] Restrict the strapping tape through the gasket insertion system to prevent the winding system from pulling the strapping tape too tightly when directly flipping it to the upper side of the packaging box, which may cause damage to the packaging box. Transfer the gasket to the surface of the packaging box in advance through the gasket insertion system and form an L shape. Then, when the winding system continues to pull the strapping tape, due to the presence of the gasket, it plays a role in protecting the packaging box. And cut oblique notches at both ends of the strapping tape in advance through the card insertion system. Then, during the process of the winding system pulling the two ends of the strapping tape closer to each other, the oblique notches cut at both ends of the strapping tape restrict each other to determine the tightened state of the strapping tape. In this way, protect the packaging box by means of the gasket and cutting oblique notches at both ends of the strapping tape, thereby preventing the winding system from pulling the strapping tape too tightly and causing serious deformation at the edge of the packaging box.

[0046] Expand the two iron sheets of the U-shaped iron sheet through the card insertion system to prevent the two iron sheets of the U-shaped iron sheet from approaching each other, resulting in the card insertion system being unable to clamp the U-shaped iron sheet to the overlapping position of the two ends of the strapping tape. And prevent the U-shaped iron sheet from being unable to be normally clamped to the overlapping position of the two ends of the strapping tape due to the increased thickness after the two ends of the strapping tape overlap at this time.

[0047] Cut oblique notches at both ends of the strapping tape through the card insertion system to increase the thickness after the two ends of the strapping tape overlap, thereby increasing the fixing effect after the U-shaped iron sheet is pressed onto the two ends of the strapping tape, and preventing the U-shaped iron sheet from not clamping the two ends of the strapping tape tightly, resulting in the two ends of the strapping tape being prone to detachment during the process of transporting the packaging box filled with salt.

[0048] The moving system includes a second slide rail 101, a second moving block 102, a first mounting frame 103, a first motor 104, and a bearing platform 105; the base 1 is bolted with the second slide rail 101; the second moving block 102 is slidably connected to the right side of the second slide rail 101; the second moving block 102 is fixedly connected with the first mounting frame 103; the first mounting frame 103 is bolted with the first motor 104; the output shaft of the first motor 104 is fixedly connected with the bearing platform 105; the second slide rail 101 is connected with the winding system; driving the bearing platform 105 to rotate through the first motor 104 can drive the packaging box to quickly adjust its direction.

[0049] The placing platform 105 is provided with an anti-slip pad, thereby preventing the packaging box from moving and causing the packaging box to fall off the placing platform 105.

[0050] The gasket insertion system includes a gasket conveying component, a gasket insertion component, a limiting component, and a corner folding component; both of the two first moving blocks 4 are connected with the gasket conveying component, and the gasket conveying component is connected with the slider 5; the gasket conveying component is connected with the gasket insertion component; the gasket conveying component is connected with the limiting component; the gantry 2 is connected with the corner folding component, and the corner folding component is connected with the gasket conveying component, the base 1, and the slider 5; the gasket can be quickly inserted into the corner folding component in a pushing manner through the gasket insertion component.

[0051] The gasket conveying component includes a first rectangular frame 201, a third slide rail 202, third moving blocks 203, a pushing plate 204, and a second rectangular frame 205; each of the front first moving block 4 and the rear first moving block 4 is fixedly connected with a second rectangular frame 205; each of the front second rectangular frame 205 and the rear second rectangular frame 205 is fixedly connected with a first rectangular frame 201, and the two first rectangular frames 201 are both fixedly connected with the corresponding slider 5; the front first rectangular frame 201 and the front second rectangular frame 205 are commonly bolted with a third slide rail 202; the rear first rectangular frame 201 and the rear second rectangular frame 205 are commonly bolted with another third slide rail 202; both the upper side and the lower side of the front third slide rail 202 are slidably connected with a third moving block 203; both the upper side and the lower side of the rear third slide rail 202 are slidably connected with another third moving block 203; both of the upper two third moving blocks 203 are fixedly connected with a pushing plate 204, and both of the upper two pushing plates 204 are slidably connected with the corresponding second rectangular frame 205; both of the lower two third moving blocks 203 are fixedly connected with a pushing plate 204, and both of the lower two pushing plates 204 are slidably connected with the corresponding first rectangular frame 201; the two first rectangular frames 201 and the two second rectangular frames 205 are both connected with the gasket insertion component; the two first rectangular frames 201 are both connected with the gasket insertion component; the two second rectangular frames 205 are both connected with the corner folding component; by driving the corresponding pushing plates 204 downward through the four third moving blocks 203, the gaskets stored in the two first rectangular frames 201 and the two second rectangular frames 205 can be quickly pushed downward.

[0052] The gasket insertion assembly includes a first push rod 211, a sleeve plate 212, a first push plate 213, a receiving plate 214 and a first elastic member 215; a sleeve plate 212 is fixedly connected to each of the two first rectangular frames 201; another sleeve plate 212 is fixedly connected to each of the two second rectangular frames 205; a first push rod 211 is bolted to the left and right sides of each of the two first rectangular frames 201; another first push rod 211 is bolted to the left and right sides of each of the two second rectangular frames 205; the telescopic portions of every two adjacent first push rods 211 are commonly fixedly connected to a first push plate 213, and each first push plate 213 is slidably connected to the corresponding sleeve plate 212; a receiving plate 214 is slidably connected to each first push plate 213; two first elastic members 215 are fixedly connected to each receiving plate 214, and every two adjacent first elastic members 215 are fixedly connected to the corresponding first push plate 213, thereby preventing the gasket from falling off when the four first push plates 213 push the gasket away from the corresponding first rectangular frame 201 and second rectangular frame 205.

[0053] The receiving plate 214 is made of rubber, so that when the receiving plate 214 comes into contact with the support plate 224, no large collision will occur.

[0054] The limiting assembly includes a first mounting plate 221, a second push rod 222, a fixing frame 223 and a support plate 224; a first mounting plate 221 is fixedly connected to the facing sides of each of the two first rectangular frames 201; a second push rod 222 is bolted to the upper and lower sides of each of the two first mounting plates 221, and the upper second push rod 222 and the lower second push rod 222 are mirror-symmetrically distributed; a fixing frame 223 is fixedly connected to the telescopic portion of each second push rod 222; a support plate 224 is fixedly connected to each fixing frame 223, thereby preventing the four receiving plates 214 from damaging the packing box when approaching the packing box.

[0055] The folding component includes a first mounting bracket 231, a third push rod 232, a fourth slide rail 233, a fourth moving block 234, a fourth push rod 235, a first pressing plate 236, a second pushing plate 237, a second elastic member 238, a second mounting plate 239, a fifth push rod 2310, a first folding plate 2311, an inclined convex block 2312 and a folding unit; The gantry 2 is bolted with a first mounting bracket 231; Two third push rods 232 are fixedly connected to the first mounting bracket 231; The telescopic parts of the two third push rods 232 are commonly fixedly connected with a fourth slide rail 233; A fourth moving block 234 is slidably connected to the front side and the rear side of the fourth slide rail 233; A fourth push rod 235 is fixedly connected to each of the front fourth moving block 234 and the rear fourth moving block 234; The telescopic parts of the front fourth push rod 235 and the rear fourth push rod 235 are both fixedly connected with a first pressing plate 236, and a first groove 236a is formed in each of the two first pressing plates 236; A first triangular convex part 236b is provided on each of the two first pressing plates 236; A second pushing plate 237 is slidably connected to each of the front first pressing plate 236 and the rear first pressing plate 236; The inclined convex block 2312 is fixedly connected to the rear first pressing plate 236; A second elastic member 238 is fixedly connected to each of the front second pushing plate 237 and the rear second pushing plate 237, and each second elastic member 238 is fixedly connected to the first pressing plate 236 corresponding to it; A second mounting plate 239 is fixedly connected to the front second rectangular frame 205 and the rear second rectangular frame 205; A fifth push rod 2310 is bolted to each of the two second mounting plates 239; The telescopic parts of the two fifth push rods 2310 are both fixedly connected with a first folding plate 2311, and a second triangular convex part 2311a is provided on each of the two first folding plates 2311; The base 1 is connected with a folding unit, and the folding unit is connected with the two sliders 5; The first mounting bracket 231 is connected with a card insertion system; The gasket can be quickly folded by the mutual cooperation of the first pressing plate 236 and the first folding plate 2311 to form a right angle for the gasket.

[0056] The rear first pressing plate 236 is provided with a rectangular convex part 236c, and the front first pressing plate 236 is provided with a second groove 236d. When the rectangular convex part 236c is inserted into the second groove 236d, the two first pressing plates 236 have a better stable effect, and thus can cooperate better with the third pressing plate 4012.

[0057] The folding unit includes a second mounting bracket 241, a sixth push rod 242, a fifth slide rail 243, a fifth moving block 244, a seventh push rod 245, a second pressing plate 246, a third pushing plate 247, a third elastic member 248, a third mounting plate 249, an eighth push rod 2410, and a second folding plate 2411; the base 1 is bolted with the second mounting bracket 241; the second mounting bracket 241 is fixedly connected with two sixth push rods 242; the telescopic parts of the two sixth push rods 242 are jointly fixedly connected with a fifth slide rail 243; a fifth moving block 244 is slidably connected to the front side and the rear side of the fifth slide rail 243; a seventh push rod 245 is fixedly connected to the front fifth moving block 244 and the rear fifth moving block 244; the telescopic parts of the front seventh push rod 245 and the rear seventh push rod 245 are both fixedly connected with a second pressing plate 246, and both of the two second pressing plates 246 are provided with a third groove 246a and a third triangular convex part 246b; a third pushing plate 247 is slidably connected to the front second pressing plate 246 and the rear second pressing plate 246; a third elastic member 248 is fixedly connected to the front third pushing plate 247 and the rear third pushing plate 247; each third elastic member 248 is fixedly connected with the corresponding second pressing plate 246; a third mounting plate 249 is fixedly connected to each of the two sliders 5; an eighth push rod 2410 is bolted to each of the two third mounting plates 249; the telescopic parts of the two eighth push rods 2410 are both fixedly connected with a second folding plate 2411, and both of the two second folding plates 2411 are provided with a fourth triangular convex part 2411a; through the mutual cooperation of the second pressing plate 246 and the second folding plate 2411, the gasket can be quickly folded to form a right angle.

[0058] The winding system includes a sixth moving block 301, a second mounting frame 302, a second motor 303, a first rotating shaft rod 304, a long plate 305, a ninth push rod 306, and an electric clamp 307; the sixth moving block 301 is slidably connected to the right side of the second slide rail 101; the sixth moving block 301 is fixedly connected with the second mounting frame 302; a second motor 303 is bolted to the front side and the rear side of the second mounting frame 302; the output shafts of the front second motor 303 and the rear second motor 303 are both fixedly connected with a first rotating shaft rod 304, and both of the two first rotating shaft rods 304 are rotatably connected with the second mounting frame 302; a long plate 305 is fixedly connected to the front first rotating shaft rod 304 and the rear first rotating shaft rod 304, the front long plate 305 and the rear long plate 305 are staggeredly distributed, and the front long plate 305 is shorter than the rear long plate 305; a ninth push rod 306 is fixedly connected to each of the two long plates 305; an electric clamp 307 is fixedly connected to each of the two ninth push rods 306; by driving the corresponding long plate 305, ninth push rod 306, and electric clamp 307 to rotate through the two second motors 303, the packing belt can be quickly wound around the surface of the packing box.

[0059] The card insertion system includes a first carrier plate 401, a third rectangular frame 402, a tenth push rod 403, a fourth push plate 404, a second rotating shaft rod 405, a wedge block 406, a torsion spring 407, a third motor 408, a second carrier plate 409, an eleventh push rod 4010, a cutting knife 4011 and a third pressing plate 4012; the first mounting bracket 231 is bolted to the first carrier plate 401; the first carrier plate 401 is fixedly connected to the third rectangular frame 402; the third rectangular frame 402 is bolted to two tenth push rods 403; the telescopic parts of the two tenth push rods 403 are jointly fixedly connected to the fourth push plate 404; a second rotating shaft rod 405 is fixedly connected to the front side and the rear side of the third rectangular frame 402; a wedge block 406 is rotatably connected to each of the two second rotating shaft rods 405; a torsion spring 407 is sleeved on the outer surface of each of the two second rotating shaft rods 405, and the torsion spring 407 is connected to the wedge block 406 and the third rectangular frame 402; a third motor 408 is bolted to the front side and the rear side of the first mounting bracket 231; a second carrier plate 409 is fixedly connected to the output shaft of each of the front third motor 408 and the rear third motor 408; an eleventh push rod 4010 is fixedly connected to each of the front second carrier plate 409 and the rear second carrier plate 409; the telescopic part of the front eleventh push rod 4010 is fixedly connected to the third pressing plate 4012; the telescopic part of the rear eleventh push rod 4010 is fixedly connected to the cutting knife 4011; through the mutual cooperation of the third pressing plate 4012 and the first pressing plate 236, the U-shaped card can be quickly clamped on the packing belt.

[0060] In the present invention, the first push rod 211, the second push rod 222, the third push rod 232, the fourth push rod 235, the fifth push rod 2310, the sixth push rod 242, the seventh push rod 245, the eighth push rod 2410, the ninth push rod 306, the tenth push rod 403 and the eleventh push rod 4010 can be selectively an electric push rod, a hydraulic cylinder and a pneumatic cylinder as the case may be, and the first slide rail 3, the second slide rail 101, the third slide rail 202, the fourth slide rail 233, the fifth slide rail 243, the first moving block 4, the second moving block 102, the third moving block 203, the fourth moving block 234, the fifth moving block 244 and the sixth moving block 301 can be selectively electric, pneumatic, magnetic levitation and hydraulic;

[0061] When the present invention is working, first, manually place the gasket into the two first rectangular frames 201 and the two second rectangular frames 205. Drive the front upper pushing plate 204 to move downward in the front second rectangular frame 205 through the front upper third moving block 203, drive the rear upper pushing plate 204 to move downward in the rear second rectangular frame 205 through the rear upper third moving block 203, drive the front lower pushing plate 204 to move downward in the front first rectangular frame 201 through the front lower third moving block 203, and drive the rear lower pushing plate 204 to move downward in the rear first rectangular frame 201 through the rear lower third moving block 203, so as to continuously push the gaskets in the two first rectangular frames 201 and the two second rectangular frames 205 downward. Then place the U-shaped iron sheet into the third rectangular frame 402. Then manually place the packing belt on the two electric clamps 307, and clamp the two ends of the packing belt through the two electric clamps 307, thus completing the preparatory work in advance;

[0062] Then manually place the packaging box on the placing platform 105, restrict the packaging box through the placing platform 105, and since the placing platform 105 is provided with an anti-slip pad, it can prevent the packaging box from moving and falling off the placing platform 105, as Figure 3 shown. Then drive the first mounting frame 103, the first motor 104, the placing platform 105 and the packaging box to move leftward through the second moving block 102 installed on the second slide rail 101, transfer the packaging box under the two first pressing plates 236, and then extend the telescopic parts of the two third push rods 232 installed on the first mounting bracket 231 to push the fourth slide rail 233 and the parts connected to the fourth slide rail 233 to move downward, so that the two first pressing plates 236 are attached to the packaging box. At the same time, extend the telescopic parts of the two sixth push rods 242 installed on the second mounting bracket 241 to push the fifth slide rail 243 and the parts connected to the fifth slide rail 243 to move upward, so that the second pressing plate 246 is attached to the packaging box;

[0063] Then, the telescopic parts of the two first push rods 211 installed on the second rectangular frame 205 at the rear side extend to push the rear upper first push plate 213 and the parts connected to the rear upper first push plate 213 to move forward. In this way, the rear upper first push plate 213 pushes the corresponding gasket forward. At this time, the rear upper bearing plate 214 plays a bearing role to prevent the gasket from falling. Then, the gasket is inserted more than half into the rear first pressing plate 236 through the rear first groove 236a. At this time, the gasket will push the rear second push plate 237 backward. At this time, the rear second elastic member 238 is in a compressed state. At this time, the rear first pressing plate 236 and the packaging box cooperate with each other to limit the gasket. During this insertion process, the gasket is restricted by the rear first triangular convex part 236b. The rear first triangular convex part 236b will perform the first pressing on the gasket to press out the inclined groove. During this process, when the rear upper bearing plate 214 contacts the rear upper support plate 224, the rear upper bearing plate 214 is restricted by the rear upper support plate 224 and moves backward. At this time, the rear upper first elastic member 215 is in a compressed state, so as to avoid damage to the packaging box caused by the bearing plate 214. And because the bearing plate 214 is made of rubber material, when the bearing plate 214 contacts the support plate 224, there will be no large collision. Then, the telescopic parts of the two first push rods 211 at the rear upper side retract to push the rear upper first push plate 213 and the parts connected to the rear upper first push plate 213 to move backward, so as to move away from the packaging box. At this time, the restriction on the rear second push plate 237 is released. Then, driven by the rear second elastic member 238, the gasket is pushed backward, so that half of the gasket disengages from the rear first pressing plate 236 and half is stuck in the rear first pressing plate 236. Then, the telescopic part of the rear fifth push rod 2310 extends to push the first folding angle plate 2311 downward, so as to perform a folding angle treatment on the gasket inserted into the rear first pressing plate 236 to make the gasket form an L shape. During this process, the rear second triangular convex part 2311a will perform the second pressing on the gasket to press out the inclined groove. In this way, an L-shaped inclined groove is pressed on the surface of the gasket. During this process, the rear upper support plate 224 plays a supporting role, so as to prevent the gasket from squeezing the edge of the packaging box during the folding angle process. At the same time, the gasket in the front second rectangular frame 205 is inserted into the front first pressing plate 236 in the same way as above, as Figure 14 shown, to make the gasket form an L shape and press out an L-shaped inclined groove on the gasket;

[0064] Meanwhile, the gaskets in the two first rectangular frames 201 are inserted into the corresponding second pressing plates 246 through the four first push rods 211 at the lower side, the two first pushing plates 213 at the lower side, the two receiving plates 214 at the lower side, the first elastic member 215, the two supporting plates 224 at the lower side, the second mounting bracket 241, the sixth push rod 242, the fifth slide rail 243, the fifth moving block 244, the seventh push rod 245, the second pressing plate 246, the third pushing plate 247, the third elastic member 248, the third mounting plate 249, the eighth push rod 2410, the second folding plate 2411, the third groove 246a, the third triangular protrusion 246b and the fourth triangular protrusion 2411a in the same manner as above. The gaskets are inserted into the corresponding second pressing plates 246 through the two first pushing plates 213 at the lower side. And the two third triangular protrusions 246b press the corresponding gaskets for the first time in the same manner to press out the inclined grooves. Then the two second folding plates 2411 process the corresponding gaskets in the same manner to make the gaskets form an L shape. At the same time, the two fourth triangular protrusions 2411a press the corresponding gaskets for the second time to press out the inclined grooves. Thus, L-shaped inclined grooves are pressed on the surface of the gaskets. Then, the retraction of the telescopic parts of the four second push rods 222 drives the corresponding fixing frames 223 and supporting plates 224 to move, so that the four supporting plates 224 move away from the corresponding gaskets. Then, the two first moving blocks 4 mounted on the first slide rail 3 drive the corresponding second rectangular frames 205 and the parts connected to the second rectangular frames 205 to move away from each other, so as to move away from the packing box. Then, the sixth moving block 301 drives the second mounting frame 302 and the parts connected to the second mounting frame 302 to move to the right, so as to drive the packing belt close to the packing box, as Figure 13As shown, the front second motor 303 drives the corresponding first rotating shaft rod 304, long plate 305, ninth push rod 306 and electric clamp 307 to rotate clockwise, and the rear second motor 303 drives the corresponding first rotating shaft rod 304, long plate 305, ninth push rod 306 and electric clamp 307 to rotate counterclockwise, so as to turn the packing belt to the upper side of the packing box. During this turning process, the telescopic part of the front ninth push rod 306 extends to push one end of the electric clamp 307 and the packing belt to move to the right, and at the same time, the telescopic part of the rear ninth push rod 306 retracts to drive the other end of the electric clamp 307 and the packing belt to move to the left, so as to drive the two ends of the packing belt to move away from each other to form a cross. During this turning process, the packing belt is aligned with the L-shaped inclined groove pressed out on the gasket. At this time, the L-shaped inclined groove will limit the packing belt, thus playing a preliminary positioning effect. And at this time, due to the existence of the two first pressing plates 236 and the two second pressing plates 246, the packing belt will be restricted to prevent the packing belt from being directly turned to the upper side of the packing box, resulting in the packing belt being pulled too tightly and thus damaging the packing box. Then, the two fourth moving blocks 234 installed on the fourth slide rail 233 drive the corresponding fourth push rod 235 and the first pressing plate 236 to approach each other, so that the two first pressing plates 236 are in contact with each other. At this time, both of the two first pressing plates 236 will release the restriction on the corresponding gasket. At the same time, the two fifth moving blocks 244 installed on the fifth slide rail 243 drive the corresponding seventh push rod 245 and the second pressing plate 246 to approach each other, so that the two second pressing plates 246 are in contact with each other. At this time, both of the two second pressing plates 246 will release the restriction on the corresponding gasket. At this time, due to the existence of the packing belt, none of the four gaskets will fall off. Then, the rear third motor 408 drives the rear second bearing plate 409, the rear eleventh push rod 4010 and the cutting knife 4011 to rotate, and then the telescopic part of the rear eleventh push rod 4010 extends to push the cutting knife 4011 to move downward. In this way, through the cooperation of the two first pressing plates 236 and the cutting knife 4011, oblique cutouts are cut at both ends of the packing belt. After cutting is completed, the rear third motor 408 drives the cutting knife 4011 to reset. Then, the front second motor 303 continues to drive the front electric clamp 307 to rotate clockwise, and the rear second motor 303 continues to drive the rear electric clamp 307 to rotate counterclockwise, so as to continue pulling the packing belt to quickly tighten the packing belt. At this time, due to the existence of the gasket, it plays a role in protecting the packing box. At the same time, the telescopic part of the front ninth push rod 306 retracts to drive one end of the packing belt to move to the left, and the telescopic part of the rear ninth push rod 306 extends to push the other end of the packing belt to move to the right, so as to drive the two ends of the packing belt to approach each other to form a cross. During this process, the inclined cutout on the rear packing belt is restricted by the oblique convex block 2312, and thus will tilt upward, so that the cross can be quickly completed.At this time, since the cutting knife 4011 cuts the inclined cuts at both ends of the packing belt in advance, when the two ends of the packing belt approach each other, the two ends of the packing belt overlap each other through the inclined cuts cut in advance. During the overlapping process, when the two ends of the packing belt are completely overlapped, the two ends of the packing belt are restricted by the inclined cuts cut in advance, and the packing belt cannot be pulled any further, so as to determine the tightened state of the packing belt. In this way, the packing box is protected by the gasket and the inclined cuts at both ends of the packing belt, thus preventing the packing belt from being pulled too tightly and causing serious deformation of the edge of the packing box;

[0065] Then, the telescopic parts of the two tenth push rods 403 retract to drive the fourth push plate 404 to move leftward, so as to quickly push the U-shaped iron sheet to the overlapping position of the two ends of the packing belt. During this process, the two wedge-shaped blocks 406 will be stuck between the two iron sheets of the U-shaped iron sheet. Under the restriction of the two wedge-shaped blocks 406, the two iron sheets of the U-shaped iron sheet will be expanded, thus preventing the two iron sheets of the U-shaped iron sheet from approaching each other due to mutual extrusion during transportation, resulting in the fourth push plate 404 being unable to push the U-shaped iron sheet to the overlapping position of the two ends of the packing belt. And by this method, it can also prevent the U-shaped iron sheet from being unable to be normally stuck to the overlapping position of the two ends of the packing belt due to the increased thickness after the two ends of the packing belt overlap. When the rear part of the U-shaped iron sheet touches the two wedge-shaped blocks 406, the two wedge-shaped blocks 406 will rotate under the restriction of the U-shaped iron sheet to avoid the U-shaped iron sheet, thus preventing the U-shaped iron sheet from being unable to be normally stuck to the packing belt due to the existence of the wedge-shaped blocks 406. When the U-shaped iron sheet is stuck to the packing belt, the two wedge-shaped blocks 406 are reset through the corresponding torsion springs 407 respectively. Then, the front third motor 408 drives the front second bearing plate 409, the front eleventh push rod 4010 and the third pressing plate 4012 to rotate. Then, the telescopic part of the front eleventh push rod 4010 extends to push the third pressing plate 4012 to move downward, so as to quickly press and fit the U-shaped iron sheet through the cooperation of the two first pressing plates 236 and the third pressing plate 4012. And because the rear first pressing plate 236 is provided with a rectangular convex part 236c and the front first pressing plate 236 is provided with a second groove 236d, when the rectangular convex part 236c is inserted into the second groove 236d, the two first pressing plates 236 have better stability, and can better cooperate with the third pressing plate 4012. At this time, since the thickness of the two ends of the packing belt increases after overlapping, the fixing effect can be increased, thus preventing the U-shaped iron sheet from not clamping the two ends of the packing belt tightly, resulting in the two ends of the packing belt being easily detached during the transportation of the packing box filled with salt;

[0066] Then, control the telescopic parts of the two fourth push rods 235 to retract, driving the corresponding first pressing plates 236 to move rightward. At the same time, control the telescopic parts of the two seventh push rods 245 to retract, driving the corresponding second pressing plates 246 to move rightward to quickly disengage from the packing tape. Then, detect the clamping of the packing tape through the two electric clamps 307. Then, control the entire device to return to the initial state through the console. Then, rotate the first motor 104, the placing table 105, and the packing box to change the direction of the packing box. Then, perform bundling on the other side of the packing box in the above manner to quickly work on both sides of the packing box.

[0067] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A self - steering strapping machine for food packaging boxes, comprising a base (1), a gantry (2), a first slide rail (3), a first moving block (4) and a slider (5); the base (1) is fixedly connected to the gantry (2); the gantry (2) is fixedly connected to the first slide rail (3); a first moving block (4) is slidably connected to both the front side and the rear side of the first slide rail (3); a slider (5) is slidably connected to both the front side and the rear side of the base (1); characterized in that, It also includes a moving system, a gasket insertion system, a winding system, and a card insertion system; the base (1) is connected to the moving system; both of the two first moving blocks (4) are connected to the gasket insertion system, and the gasket insertion system is connected to the base (1), the gantry (2), and the slider (5); the moving system is connected to the winding system; the gasket insertion system is connected to the card insertion system; the moving system is used to rotate the packing box; the gasket insertion system is used to insert the gasket onto the surface of the packing box; the winding system is used to wind the packing strap onto the surface of the packing box; The gasket insertion system includes a gasket conveying component, a gasket insertion component, a limiting component, and a folding component; both of the two first moving blocks (4) are connected to the gasket conveying component, and the gasket conveying component is connected to the slider (5); the gasket conveying component is connected to the gasket insertion component; the gasket conveying component is connected to the limiting component; the gantry (2) is connected to the folding component, and the folding component is connected to the gasket conveying component, the base (1), and the slider (5); the gasket conveying component is used to convey the gasket; the gasket insertion component is used to insert the gasket into the folding component; the folding component is used to fold the gasket; The gasket conveying component includes a first rectangular frame (201), a third slide rail (202), a third moving block (203), a pushing plate (204), and a second rectangular frame (205); each of the front first moving block (4) and the rear first moving block (4) is fixedly connected with a second rectangular frame (205); each of the front second rectangular frame (205) and the rear second rectangular frame (205) is fixedly connected with a first rectangular frame (201), and the two first rectangular frames (201) are both fixedly connected with their corresponding sliders (5); the front first rectangular frame (201) and the front second rectangular frame (205) are jointly fixedly connected with a third slide rail (202); the rear first rectangular frame (201) and the rear second rectangular frame (205) are jointly fixedly connected with another third slide rail (202); one third moving block (203) is slidably connected to the upper side and the lower side of the front third slide rail (202); another third moving block (203) is slidably connected to the upper side and the lower side of the rear third slide rail (202); each of the two upper third moving blocks (203) is fixedly connected with a pushing plate (204), and the two upper pushing plates (204) are both slidably connected to their corresponding second rectangular frames (205); each of the two lower third moving blocks (203) is fixedly connected with a pushing plate (204), and the two lower pushing plates (204) are both slidably connected to their corresponding first rectangular frames (201); the two first rectangular frames (201) and the two second rectangular frames (205) are both connected to the gasket insertion component; the two first rectangular frames (201) are both connected to the gasket insertion component; the two second rectangular frames (205) are both connected to the folding component; the first rectangular frame (201) and the second rectangular frame (205) are both used to store the gasket; The gasket insertion assembly includes a first push rod (211), a sleeve plate (212), a first push plate (213), a receiving plate (214), and a first elastic member (215); a sleeve plate (212) is fixedly connected to each of the two first rectangular frames (201); another sleeve plate (212) is fixedly connected to each of the two second rectangular frames (205); a first push rod (211) is fixedly connected to the left and right sides of each of the two first rectangular frames (201); another first push rod (211) is fixedly connected to the left and right sides of each of the two second rectangular frames (205); the telescopic portions of every two adjacent first push rods (211) are commonly fixedly connected to a first push plate (213), and each first push plate (213) is slidably connected to the corresponding sleeve plate (212); a receiving plate (214) is slidably connected to each first push plate (213); two first elastic members (215) are fixedly connected to each receiving plate (214), and every two adjacent first elastic members (215) are fixedly connected to the corresponding first push plate (213); the receiving plate (214) is used for receiving the gasket; The corner folding assembly includes a first mounting bracket (231), a third push rod (232), a fourth slide rail (233), a fourth moving block (234), a fourth push rod (235), a first pressing plate (236), a second pushing plate (237), a second elastic member (238), a second mounting plate (239), a fifth push rod (2310), a first corner folding plate (2311), an inclined convex block (2312) and a corner folding unit; The gantry (2) is fixedly connected with a first mounting bracket (231); The first mounting bracket (231) is fixedly connected with two third push rods (232); The telescopic parts of the two third push rods (232) are jointly fixedly connected with a fourth slide rail (233); A fourth moving block (234) is slidably connected to both the front side and the rear side of the fourth slide rail (233); A fourth push rod (235) is fixedly connected to both the front fourth moving block (234) and the rear fourth moving block (234); The telescopic parts of the front fourth push rod (235) and the rear fourth push rod (235) are both fixedly connected with a first pressing plate (236), and a first groove (236a) is formed in each of the two first pressing plates (236); A first triangular convex part (236b) is provided on each of the two first pressing plates (236); A second pushing plate (237) is slidably connected to both the front first pressing plate (236) and the rear first pressing plate (236); The inclined convex block (2312) is fixedly connected to the rear first pressing plate (236); A second elastic member (238) is fixedly connected to both the front second pushing plate (237) and the rear second pushing plate (237), and each second elastic member (238) is fixedly connected to the first pressing plate (236) corresponding to it; A second mounting plate (239) is fixedly connected to both the front second rectangular frame (205) and the rear second rectangular frame (205); A fifth push rod (2310) is fixedly connected to each of the two second mounting plates (239); The telescopic parts of the two fifth push rods (2310) are both fixedly connected with a first corner folding plate (2311), and a second triangular convex part (2311a) is provided on each of the two first corner folding plates (2311); The base (1) is connected with a corner folding unit, and the corner folding unit is connected with two sliders (5); The first mounting bracket (231) is connected with a card insertion system; The first pressing plate (236) and the packaging box cooperate with each other to limit the gasket; The card insertion system includes a first carrier plate (401), a third rectangular frame (402), a tenth push rod (403), a fourth push plate (404), a second rotating shaft rod (405), a wedge block (406), a torsion spring (407), a third motor (408), a second carrier plate (409), an eleventh push rod (4010), a cutting knife (4011) and a third pressing plate (4012); the first mounting bracket (231) is fixedly connected with the first carrier plate (401); the first carrier plate (401) is fixedly connected with the third rectangular frame (402); the third rectangular frame (402) is fixedly connected with two tenth push rods (403); the telescopic parts of the two tenth push rods (403) are jointly fixedly connected with the fourth push plate (404); a second rotating shaft rod (405) is fixedly connected to the front side and the rear side of the third rectangular frame (402); a wedge block (406) is rotatably connected to each of the two second rotating shaft rods (405); a torsion spring (407) is sleeved on the outer surface of each of the two second rotating shaft rods (405), and the torsion spring (407) is connected to the wedge block (406) and the third rectangular frame (402); a third motor (408) is fixedly connected to the front side and the rear side of the first mounting bracket (231); the output shafts of the front third motor (408) and the rear third motor (408) are fixedly connected with a second carrier plate (409); an eleventh push rod (4010) is fixedly connected to each of the front second carrier plate (409) and the rear second carrier plate (409); the telescopic part of the front eleventh push rod (4010) is fixedly connected with the third pressing plate (4012); the telescopic part of the rear eleventh push rod (4010) is fixedly connected with the cutting knife (4011); the wedge block (406) is used to expand the U-shaped card; the cutting knife (4011) is used to cut the packing tape.

2. The self - steering strapping machine for food packaging boxes according to claim 1, characterized in that, The moving system includes a second slide rail (101), a second moving block (102), a first mounting frame (103), a first motor (104) and a supporting platform (105); the base (1) is fixedly connected with the second slide rail (101); the second moving block (102) is slidably connected to the right side of the second slide rail (101); the second moving block (102) is fixedly connected with the first mounting frame (103); the first mounting frame (103) is fixedly connected with the first motor (104); the output shaft of the first motor (104) is fixedly connected with the supporting platform (105); the second slide rail (101) is connected with a winding system; the supporting platform (105) is used to support the packing box.

3. The self - steering strapping machine for food packaging boxes according to claim 2, characterized in that, The limiting component includes a first mounting plate (221), a second push rod (222), a fixing frame (223) and a support plate (224); a first mounting plate (221) is fixedly connected to the opposite sides of the two first rectangular frames (201); a second push rod (222) is fixedly connected to the upper and lower sides of the two first mounting plates (221), and the upper second push rod (222) and the lower second push rod (222) are mirror-symmetrically distributed; a fixing frame (223) is fixedly connected to the telescopic part of each second push rod (222); a support plate (224) is fixedly connected to each fixing frame (223); the four support plates (224) are all used to limit the corresponding receiving plate (214).

4. The self - steering strapping machine for food packaging boxes according to claim 3, characterized in that, The folding angle unit includes a second mounting frame (241), a sixth push rod (242), a fifth slide rail (243), a fifth moving block (244), a seventh push rod (245), a second pressing plate (246), a third pushing plate (247), a third elastic member (248), a third mounting plate (249), an eighth push rod (2410) and a second folding angle plate (2411); the base (1) is fixedly connected to the second mounting frame (241); the second mounting frame (241) is fixedly connected to two sixth push rods (242); the telescopic parts of the two sixth push rods (242) are commonly fixedly connected to the fifth slide rail (243); a fifth moving block (244) is slidably connected to the front and rear sides of the fifth slide rail (243); a seventh push rod (245) is fixedly connected to each of the front fifth moving block (244) and the rear fifth moving block (244); the telescopic parts of the front seventh push rod (245) and the rear seventh push rod (245) are fixedly connected to a second pressing plate (246), and third grooves (246a) are formed in the two second pressing plates (246), and third triangular convex parts (246b) are provided on the two second pressing plates (246); a third pushing plate (247) is slidably connected to each of the front second pressing plate (246) and the rear second pressing plate (246); a third elastic member (248) is fixedly connected to each of the front third pushing plate (247) and the rear third pushing plate (247); each third elastic member (248) is fixedly connected to the corresponding second pressing plate (246); a third mounting plate (249) is fixedly connected to each of the two sliders (5); an eighth push rod (2410) is fixedly connected to each of the two third mounting plates (249); the telescopic parts of the two eighth push rods (2410) are fixedly connected to a second folding angle plate (2411), and a fourth triangular convex part (2411a) is provided on each of the two second folding angle plates (2411); the second pressing plate (246) and the packaging box cooperate with each other to limit the gasket.

5. The self - steering strapping machine for food packaging boxes according to claim 4, characterized in that, The winding system includes a sixth moving block (301), a second mounting frame (302), a second motor (303), a first rotating shaft rod (304), a long plate (305), a ninth push rod (306) and an electric clamp (307); the sixth moving block (301) is slidably connected to the right side of the second slide rail (101); the sixth moving block (301) is fixedly connected to the second mounting frame (302); a second motor (303) is fixedly connected to both the front side and the rear side of the second mounting frame (302); the output shafts of the front second motor (303) and the rear second motor (303) are both fixedly connected to a first rotating shaft rod (304), and both of the two first rotating shaft rods (304) are rotatably connected to the second mounting frame (302); a long plate (305) is fixedly connected to both the front first rotating shaft rod (304) and the rear first rotating shaft rod (304), the front long plate (305) and the rear long plate (305) are staggeredly distributed, and the front long plate (305) is shorter than the rear long plate (305); a ninth push rod (306) is fixedly connected to both of the two long plates (305); an electric clamp (307) is fixedly connected to both of the two ninth push rods (306); the electric clamp (307) is used for clamping the packing belt.

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