A bundling mechanism of a packing machine

Abstract

The present invention relates to a bundling mechanism of a packing machine in the field of packing machines, including a support frame with a rectangular structure, a wire hooking unit, a wire twisting unit, and a shearing unit connected to the support frame; the shearing unit is provided with a shear opening for the wire to enter and perform a shearing action. The wire twisting unit is provided with a first reamer and a second reamer. The first reamer and the second reamer are respectively located on both sides of the shear opening. The wire hooking unit is used to hook multiple strands of wire vertically to a predetermined height to form an inverted V shape. The first reamer and the second reamer are driven to rotate in opposite directions, and both sides of the top ends of the hooked multiple strands of wire enter the first reamer and the second reamer respectively and are screwed. In the present invention, by deforming the comma-shaped flat plate structure into a reamer with a columnar structure with spiral blades, and moving the screwed wire upward and outward, the technical problem that the wire in the prior art cannot enter the shear opening and thus cannot complete bundling is solved, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of packing machines, and specifically, to a bundling mechanism of a packing machine. Background Art

[0002] Fully automatic packing machines are generally used for the compression and packing of waste such as waste paper shells and waste plastics to achieve volume reduction of the waste, facilitating storage and transportation. Fully automatic packing machines generally use iron wires to bundle the compressed waste packages to prevent them from rebounding and expanding. During the process of bundling with iron wires, it is necessary to first hook up two strands of iron wires and twist them a certain number of turns through a reamer. At this time, the twisted iron wires enter the cutting opening and are cut by the cutting mechanism. After being cut, the iron wires are twisted a certain number of turns through the reamer to complete the bundling and packing of the iron wires.

[0003] For example, the patent number is CN108820289A, which discloses a vertical wire-hooking packing machine and its working method, including a packing machine body, a compression chamber, a wire-hooking and wire-twisting box, a hopper and a hydraulic station. A compression chamber is provided inside the packing machine body, a push head is provided inside the compression chamber, a wire-hooking and wire-twisting box and a hopper are provided above the compression chamber, and a hydraulic station is provided at one end of the packing machine body; a plurality of vertically installed wire-hooking rods are provided inside the wire-hooking and wire-twisting box. The wire-hooking rod is composed of a wire-hooking guide rod and a wire-hooking head. A wire-twisting and cutting mechanism is provided on one side of the wire-hooking rod, and a wire-twisting mechanism is provided on the other side of the wire-hooking rod. The above patent is the applicant's prior application document. During the use of this technology, it is found that the iron wires often cannot be fed into the cutting opening, resulting in the iron wires not being cut, and finally leading to the technical problem of poor qualification rate of bundling. Summary of the Invention

[0004] Aiming at the defects in the prior art, the purpose of the present invention is to provide a bundling mechanism of a packing machine.

[0005] According to a bundling mechanism of a packing machine provided by the present invention, it includes a support frame with a rectangular structure, a wire-hooking unit, a wire-twisting unit and a cutting unit connected to the support frame;

[0006] The cutting unit is provided with a cutting opening for the iron wire to enter and perform a cutting action. The wire-twisting unit is provided with a first reamer and a second reamer. The first reamer and the second reamer are respectively located on both sides of the cutting opening. The wire-hooking unit is used to hook up multiple strands of iron wires in the vertical direction to a predetermined height to form an inverted V shape, drive the first reamer and the second reamer to rotate in opposite directions, and the two sides of the top ends of the hooked multiple strands of iron wires respectively enter the first reamer and the second reamer and are twisted;

[0007] The first reamer includes a column body, and a reaming plate is provided at the bottom of the column body. The reaming plate is an arc-shaped structural plate. A spiral blade is provided on the side surface of the column body. The lower end surface of the spiral blade is connected to the upper surface of the reaming plate. The spiral blade has a cross-section with a gradually increasing cross-sectional area from the bottom to the top of the column body. During the process of the first reamer twisting the iron wire, the side of the multi-strand iron wire that is hooked near the top moves upward along the spiral blade and enters the cutting opening, and the cutting unit shears the iron wire that enters the cutting opening.

[0008] In some embodiments, the spiral blade and the reaming plate have the same radian.

[0009] In some embodiments, a stop opening is formed between the reaming plate and the side surface of the column body, and an inner cavity is formed between the spiral blade and the side surface of the column body. The inner cavity is located at the rear end of the stop opening.

[0010] In some embodiments, a baffle is provided at the top end of the column body. The baffle is an annular plate, and the baffle is concentric with the column body, and the outer diameter of the baffle is larger than the diameter of the column body.

[0011] In some embodiments, the column body is a cylinder structure with open upper and lower ends.

[0012] In some embodiments, the second reamer has the same structural shape as the first reamer.

[0013] In some embodiments, the wire twisting unit further includes a wire twisting drive motor and a second transmission assembly. The second transmission assembly includes a transmission belt, a transmission wheel, and a transmission shaft. One end of the transmission shaft is sleeved with the transmission wheel, and the other end of the transmission shaft is used to sleeve the first reamer or the second reamer. The wire twisting drive motor drives the transmission wheel to rotate through the transmission belt, and then drives the first reamer and the second reamer to rotate.

[0014] In some embodiments, the wire hooking unit includes a wire hooking drive motor, a first transmission assembly, and a hook head assembly. The hook head assembly includes a hook head in the shape of a fishing hook and a sheave rotatably installed in the hook head. The wire hooking drive motor drives the hook head to lift and lower through the first transmission assembly. The hook head that descends to a predetermined position is used to hook multiple strands of iron wire at the same time. The hooked iron wire slides into the wire groove of the sheave from the open end of the hook head. After rising to a defined position, the hook head is located between the second reamer and the cutting opening, and one side of the sheave is located in the cutting opening.

[0015] In some embodiments, the shearing unit includes a shearing drive motor and a cutter plate. The shearing opening is located on the cutter plate. When in a static state, the shearing openings on the two cutter plates are arranged side by side and aligned. The two cutter plates are respectively denoted as a stationary cutter plate and a moving cutter plate. The shearing drive motor drives the moving cutter plate to linearly move relative to the stationary cutter plate, so that the iron wire located in the shearing opening is cut off.

[0016] In some embodiments, the first reamer and the second reamer form a reamer group. There are multiple groups of the reamer group, and the shearing opening and the hook head assembly are both arranged in adaptation to the number of the reamer groups.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] For the bundling mechanism of the baler of the present invention, by deforming the comma-shaped flat plate structure into a columnar structure body with spiral blades of the reamer, the screwed iron wire is moved upward and outward, which is equivalent to increasing the angle of the hooked inverted V-shaped iron wire, so as to ensure that the hooked iron wire is located in the shearing opening, and further ensure that the bundled iron wire is smoothly cut off, solving the technical problem in the prior art that the iron wire cannot enter the shearing opening and the bundling cannot be completed, and effectively improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects and advantages of the present invention will become more obvious:

[0020] Figure 1 is a front three-dimensional structural schematic diagram of the bundling mechanism of the baler of the present invention;

[0021] Figure 2 is Figure 1 a lower part partial enlarged structural schematic diagram;

[0022] Figure 3 is Figure 1 an upper part partial enlarged structural schematic diagram after removing the top plate;

[0023] Figure 4 is a structural schematic diagram of the assembly of the hook head assembly and the first transmission assembly in the hook wire unit of the present invention;

[0024] Figure 5 is a structural schematic diagram of the hook head assembly of the present invention;

[0025] Figure 6 is a rear three-dimensional structural schematic diagram of the bundling mechanism of the baler of the present invention;

[0026] Figure 7 is Figure 6 a lower part partial enlarged structural schematic diagram;

[0027] Figure 8 Schematic three-dimensional structure diagram of the first reamer of the present invention;

[0028] Figure 9 Schematic cross-sectional structure diagram of the first reamer of the present invention;

[0029] Figure 10 Schematic structure diagram of one kind of the second reamer of the present invention;

[0030] Figure 11 Schematic structure diagram showing the bottom of the bundling mechanism of the baling machine of the present invention;

[0031] Figure 12 Schematic structure diagram of the cutter plate of the present invention. Specific embodiments

[0032] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several changes and improvements can still be made. These all belong to the protection scope of the present invention.

[0033] This embodiment provides a bundling mechanism of a baling machine, as Figures 1-12 shown, mainly including a support frame 100 for providing an installation position for the mechanism, and a hook wire unit 200, a wire winding unit 300, and a shearing unit 400 connected to the support frame 100.

[0034] The support frame 100 is a rectangular structural frame, mainly composed of a top plate 110, a bottom plate 120, and two side plates 130 connecting the top plate 110 and the bottom plate 120.

[0035] The wire-hooking unit 200 mainly includes a wire-hooking drive motor 210, a first transmission assembly 220, and a hook head assembly 230. The wire-hooking drive motor 210 is seated and installed on the top plate 110. The first transmission assembly 220 includes a first transmission shaft 221, a carrier plate 222, a pulley 223, a belt pulley 224, and a first transmission belt 225. The carrier plate 222 is of a rectangular structure, and both ends of the carrier plate 222 are slidably connected to the slideways provided on the inner surfaces of the two side plates 130 through the pulleys 223. The upper end of the first transmission shaft 221 is fixed to the carrier plate 222, and its lower end is slidably connected to the through hole opened in the bottom plate 120. The belt pulley 224 is installed on the upper surface of the bottom plate 120 and is rotationally connected to the drive shaft of the wire-hooking drive motor 210 through the first transmission belt 225. At the same time, the belt body of the first transmission belt 225 is fixedly connected to the carrier plate 222. The wire-hooking drive motor 210 drives the carrier plate 222 to slide up and down through the first transmission belt 225, thereby driving the first transmission shaft 221 to slide up and down in the through hole of the bottom plate 120. The hook head assembly 230 mainly includes a hook head 231 in the shape of a fishing hook, and a grooved pulley 232 rotatably installed in the hook head 231. The upper end of the hook head 231 is sleeved on the lower end of the first transmission shaft 221 and moves up and down with the first transmission shaft 221. After connection, the hook head 231 is basically located below the bottom plate 120. The rod part of the hook head 231 connected to the first transmission shaft 221 can enter above the upper surface of the bottom plate 120 during the up and down movement, while the part for hooking the iron wire and the grooved pulley 232 located inside the iron wire hooking part are located below the bottom plate 120. The structural design of the hook head 231 is as Figure 5 shown. Its lower part has a wedge-shaped surface to prevent the iron wire from being unable to move upward due to the top of the end surface at its bottom. Its upper part is designed with an inclined surface and an arc surface that are easy for the iron wire to enter the grooved pulley 232.

[0036] The wire winding unit 300 includes a first reamer 310, a second reamer 320, a wire winding drive motor 330, and a second transmission assembly 340. The first reamer 310 includes a cylindrical column 311. In this embodiment, the column 311 is a cylindrical structure with open ends at both ends. A reaming plate 312 is connected to the bottom of the column 311. The reaming plate 312 is an arc-shaped structural plate, which is a semi-crescent-shaped structural plate in this embodiment, saving sheet materials while achieving winding and improving the structural compactness of the reamer. In this embodiment, the reaming plate 312 is integrally formed on the column 311, and the lower surface of the reaming plate 312 is flush with the bottom surface of the column 311. A spiral blade 313 is provided on the side of the column 311. The spiral blade 313 has a cross-section with an area gradually increasing from the bottom to the top of the column 311. The side with the larger cross-sectional area of the spiral blade 313 is connected to the side of the column 311, and the lower end surface of the spiral blade 313 is connected to the reaming plate 312. The inner cavity 3131 formed at the connection between the spiral blade 313 and the side of the column 311 is located at the rear end of the stop opening 3121 formed at the connection between the reaming plate 312 and the side of the column 311. Here, the so-called rear end refers to the direction indicated along the circumferential direction in which the cross-sectional area of the spiral blade 313 gradually increases. In this embodiment, both the spiral blade 313 and the reaming plate 312 are arc-shaped plates with the same radian, which not only facilitates the assembly of the spiral blade 313 but also enables the wire wound into the reaming plate 312 to come into contact with the edge of the ramp spiral blade 313 in time and be guided. In some embodiments, a baffle 314 is provided at the top of the column 311. The baffle 314 is a circular plate, concentric with the column 311, and the diameter of the baffle 314 is larger than the diameter of the column 311. Under this structural design, when a part of the baffle 314 extends outside the column 311, when the wire is twisted, the wire not only has an upward movement guide through the spiral blade 313 but also has an outward movement guide through the outer edge of the baffle 314, thereby increasing the height of the wire lifted upward and further improving the accuracy of the wire entering the cutting opening. The structural shape of the second reamer 320 may be the same as or different from the structural shape of the first reamer 310. In this embodiment, the structural shape of the second reamer 320 adopts a flat comma-shaped structure in the existing design to reduce costs. The second transmission assembly 340 mainly includes a rotating shaft 341, a transmission wheel 342, and a second transmission belt 343. The rotating shafts 341 are rotatably connected to the bottom plate 120 in pairs. Transmission wheels 342 are sleeved on the rod bodies of the rotating shafts 341 located on the upper surface of the bottom plate 120. The rod bodies of the rotating shafts 341 located under the lower surface of the bottom plate 120 are respectively located on both sides of the hook head 231, and the first reamer 310 and the second reamer 320 are respectively sleeved on the two rod bodies.The wire twisting drive motor 330 is installed on the side plate 130 on one side, and a transmission wheel 342 is installed on the side plate 130 on the other side. The wire twisting drive motor 330 rotates and connects the transmission wheel 342 through the second transmission belt 343 to form a transmission loop, and the second transmission belt 343 drives the two rotating shafts 341 arranged in pairs to rotate synchronously in opposite directions, that is, one of the two rotating shafts 341 arranged in pairs rotates clockwise, and the other rotates counterclockwise, so that when the first reamer 310 and the second reamer 320 twist the two steel wires, it is equivalent to rubbing the two ends of the two steel wires, thereby twisting them into strands.

[0037] The shearing unit 400 mainly includes a shearing drive motor 410 and a knife plate 420. The knife plate 420 is provided with a shearing opening 421, such as Figures 11-12 As shown, the shearing opening 421 is a U-shaped structure, and the shearing opening 421 is used to allow the steel wire that is hooked by the hook head 231 and preliminarily twisted by the first reamer 310 and the second reamer 320 to enter, and the steel wire is cut by the cutter installed at the position of the shearing opening 421. The knife plate 420 is provided with a horizontal L-shaped installation groove 422 for installing the cutter, and the cutter is fixed in the L-shaped installation groove 422 by screws, as shown in FIG. Figure 11 As shown. The knife plates 420 are two pieces, and the two knife plates 420 are connected vertically and side by side on the lower surface of the bottom plate 120. The two knife plates 420 arranged side by side on the bottom plate 120 are located between the first reamer 310 and the hook head 231, and when the hook head 231 is pulled up to the highest position, one side of the groove wheel 232 connected to the hook head 231 is rotated to enter the shearing opening 421. After the two knife plates 420 are connected, one of them is fixed and is marked as a static knife plate 4201, and the other is set to slide and is marked as a moving knife plate 4202, and moves linearly relative to the static knife plate 4201 through the driving connection with the shearing drive motor 410. The shearing openings 421 of the stationary blade plate 4201 and the movable blade plate 4202 are basically flush when in a stationary state, and the blades of the cutters installed in the two L-shaped installation grooves 422 are arranged opposite to each other. During the shearing action, the shearing drive motor 410 drives the movable blade plate 4202 to move linearly relative to the stationary blade plate 4201, and the two cutters gradually approach until the steel wire in the shearing opening 421 is cut.

[0038] The working principle of the wire bundling mechanism of the baler provided in this embodiment is as follows: After the block-shaped objects formed by baling in the baler are wound by two wires, the hook wire driving motor 210 drives the hook head assembly 230 to descend to a predetermined height through the first transmission assembly 220. Then, the two wires enter the ports of the hook head 231. After the hook head 231 is driven to move upward, the two wires enter the hook head 231 and fall into the grooves of the sheave 232. During the process of the two wires being pulled up by the hook head 231, the position where the steel wire is pulled up can be adjusted by the rotation of the sheave 232. When the hook head 231 rises to the highest position, one side of the sheave 232 enters the cutting notch 421, and the two steel wires are lifted into an inverted V shape. At this time, the wire twisting driving motor 330 drives the first cutter 310 and the second cutter 320 to rotate synchronously and reversely through the second transmission assembly 340. The rotating first cutter 310 and second cutter 320 pull the steel wires located on both sides of the sheave 232, which are lifted, into the cutters. After the cutters on both sides rotate and twist the multi-strand wires on both sides for a certain number of turns, the first cutter 310, which deforms the comma-shaped flat structure into a cylindrical structure with spiral blades, moves the twisted wires upward and outward, which is equivalent to increasing the angle of the inverted V-shaped wires that are hooked up. Further, it can ensure that the hooked wires are located within the cutting notch, and thus ensure that the bundled wires are smoothly cut, solving the technical problem in the prior art that the wires cannot enter the cutting notch and the bundling cannot be completed, and effectively improving the production efficiency. Of course, when the second cutter 320 has the same structure as the first cutter 310, the second cutter 320 also has the effect of moving the twisted wires upward and outward, and the effect is better.

[0039] In some embodiments, there are multiple pairs of the first cutter 310 and the second cutter 320 arranged in pairs in the wire twisting unit 300, which can perform multiple wire bundling operations at one time, effectively improving the bundling efficiency in the application scenario where the block-shaped objects to be baled require multiple wire bundling. In this case, the structures such as the hook head assembly 230 in the hook wire unit 200 and the cutting notch 421 in the cutting unit 400 are adaptively arranged with the structure of the wire twisting unit 300, and the structural design is shown in Figure 11 as follows.

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0041] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A bundling mechanism of a packing machine, characterized in that, It includes a support frame (100) with a rectangular structure, as well as a wire hooking unit (200), a wire twisting unit (300), and a shearing unit (400) connected to the support frame (100); The shearing unit (400) is provided with a shear opening (421) for the wire to enter and perform a shearing action. The wire twisting unit (300) is provided with a first reamer (310) and a second reamer (320). The first reamer (310) and the second reamer (320) are respectively located on both sides of the shear opening (421). The wire hooking unit (200) is used to hook multiple strands of wire vertically to a predetermined height to form an inverted V shape. The first reamer (310) and the second reamer (320) are driven to rotate in opposite directions, and both sides of the top of the hooked multiple strands of wire enter the first reamer (310) and the second reamer (320) respectively and are screwed; The first reamer (310) includes a column body (311). At the bottom of the column body (311), there is a reaming plate (312). The reaming plate (312) is a circular arc-shaped structural plate. On the side of the column body (311), there is a spiral piece (313). The lower end surface of the spiral piece (313) is connected to the upper surface of the reaming plate (312). The spiral piece (313) has a cross-section with a gradually increasing cross-sectional area from the bottom to the top of the column body (311). During the process of the first reamer (310) screwing the wire, one side of the multiple strands of wire near the top moves upward along the spiral piece (313) and enters the shear opening (421). The shearing unit (400) performs a shearing process on the wire entering the shear opening (421); The spiral piece (313) has the same radian as the reaming plate (312); A stop opening (3121) is formed between the reaming plate (312) and the side of the column body (311). An inner cavity (3131) is formed between the spiral piece (313) and the side of the column body (311). The inner cavity (3131) is located at the rear end of the stop opening (3121); At the top of the column body (311), there is a baffle (314). The baffle (314) is an annular plate. The baffle (314) is concentric with the column body (311), and the outer diameter of the baffle (314) is larger than the diameter of the column body (311).

2. The strapping mechanism of the bundling machine according to claim 1, characterized in that, The column body (311) is a cylindrical structure with open ends at both the top and the bottom.

3. The strapping mechanism of the bundling machine according to claim 1 or 2, characterized in that, The second reamer (320) has the same structural shape as the first reamer (310).

4. The strapping mechanism of the bundling machine according to claim 3, characterized in that, The wire twisting unit (300) further includes a wire twisting drive motor (330) and a second transmission assembly (340). The second transmission assembly (340) includes a transmission belt (341), a transmission wheel (342), and a transmission shaft (343). One end of the transmission shaft (343) is sleeved with the transmission wheel (342), and the other end of the transmission shaft (343) is used to sleeve the first reamer (310) or the second reamer (320). The wire twisting drive motor (330) drives the transmission wheel (342) to rotate through the transmission belt (341), thereby driving the first reamer (310) and the second reamer (320) to rotate.

5. The strapping mechanism of the bundling machine according to claim 3, characterized in that, The wire hooking unit (200) includes a wire hooking drive motor (210), a first transmission assembly (220), and a hook head assembly (230). The hook head assembly (230) includes a hook head (231) in the shape of a fishing hook and a grooved pulley (232) rotatably installed in the hook head (231). The wire hooking drive motor (210) drives the hook head (231) to move up and down through the first transmission assembly (220). The hook head (231) lowered to a predetermined position is used to hook multiple strands of iron wire at the same time. The hooked iron wire slides into the wire groove of the grooved pulley (232) from the open end of the hook head (231). After rising to a defined position, the hook head (231) is located between the second reamer (320) and the cutting opening (421), and one side of the grooved pulley (232) is located within the cutting opening (421).

6. The strapping mechanism of the baler according to claim 3, characterized in that, The shearing unit (400) includes a shearing drive motor (410) and a knife plate (420). The cutting opening (421) is located on the knife plate (420). When static, the cutting openings (421) on the two knife plates (420) are arranged side by side and aligned. The two knife plates (420) are respectively denoted as a stationary knife plate (4201) and a moving knife plate (4202). The shearing drive motor (410) drives the moving knife plate (4202) to move linearly relative to the stationary knife plate (4201), so that the iron wire located within the cutting opening (421) is cut off.

7. The strapping mechanism of the bundling machine according to claim 5, characterized in that The first reamer (310) and the second reamer (320) form a reamer group. There are multiple groups of the reamer group. The cutting opening (421) and the hook head assembly (230) are both arranged in adaptation to the number of the reamer groups.

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