Packing belt recovery roller shearing mechanism and shearing method

Abstract

The invention belongs to the field of packaging box packing belt recovery, and particularly discloses a packing belt recovery roller shearing mechanism and a shearing method.The packing belt recovery roller shearing mechanism comprises a recovery feeding mechanism, a power mechanism and an auxiliary device, and the recovery feeding mechanism comprises a pressing air cylinder, an upper roller assembly and a lower roller; the power mechanism comprises a motor, and the auxiliary device comprises a rack and a synchronous belt. A packing belt recycling and shearing method comprises the steps that an upper rolling wheel with an elastic telescopic function is combined with a lower rolling wheel to conduct elastic rolling on a packing belt to be recycled, a conveying channel and a packing belt guiding channel are arranged behind the upper rolling wheel to conduct space limiting on the conveyed packing belt, and a recycling and shearing mechanism is arranged behind the packing belt guiding channel. The packing belt is sheared by adopting an upper blade and a lower blade in an up-and-down shearing mode. By means of pushing of the upper rolling wheels which are elastically arranged, the shearing effect of the recovery shearing mechanism is remarkably improved, and the problem that equipment is stuck due to the fact that shearing is not in place is remarkably solved.

Description

Technical Field

[0001] The invention belongs to the field of packaging box strapping tape recycling, and specifically discloses a strapping tape recycling roller shearing mechanism and a shearing method. Background Art

[0002] Strapping tape is a composite material widely used for box strapping. It is usually made of polypropylene (PP), polyester (PET), paper tape and nylon tape. It is often used in logistics, warehousing, manufacturing, electronic products and carton packaging. When using it, the box strapping tape must be disassembled, so it is particularly important to cut and recycle the strapping tape. In the field of assembly lines, the speed of disassembly will affect work efficiency. Some existing strapping tape disassembly equipment does not cut the strapping tape into sections, which is not conducive to the collection of strapping tape and subsequent recycling.

[0003] In order to solve the problem of strapping tape recycling, the existing recycling technology has certain defects, and the strapping tape is easy to deviate, resulting in recycling failure; most of the existing strapping tape recycling technologies are for single-layer strapping tape. When the strapping tape at the joint of the strapping tape that has been used on the packaging box is double-layered or multi-layered, the recycling process is easy to cause the equipment to get stuck. The above technical problems mainly lie in the design of the recycling feeding mechanism and the coordination of cutting with the recycling shearing mechanism. Through in-depth research, it was found that the reasons for the above failures are: 1. The strapping tape will be damaged or bent after use, which is often due to the incompleteness of the above strapping tape that causes the equipment to get stuck; 2. Whether the strapping tape is limited in place or warped before the cutter cuts, which directly affects the cutting effect. Summary of the invention

[0004] The present invention provides a strapping tape recycling roller shearing mechanism and a shearing method to solve the strapping tape transmission and shearing problems described in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] A strapping tape recycling roller shearing mechanism comprises a recycling feeding mechanism, a power mechanism and auxiliary devices, wherein the recycling feeding mechanism comprises a clamping cylinder, an upper roller assembly and a lower roller; the power mechanism comprises a motor, and the auxiliary devices comprise a frame and a synchronous belt; the recycling feeding mechanism is responsible for continuously conveying the strapping tape, the power mechanism is responsible for providing power to the recycling feeding mechanism, and the auxiliary devices are responsible for connecting the motor and the recycling feeding mechanism and conveying power to the recycling feeding mechanism.

[0007] Optionally, the pressing cylinder of the recycling and feeding mechanism is fixedly mounted on the frame, the upper roller assembly of the recycling and feeding mechanism is mounted on the lower part of the push rod of the pressing cylinder, the lower roller of the recycling and feeding mechanism is fixedly mounted on the frame and driven to rotate by a motor, and the upper roller assembly is driven to move vertically by the pressing cylinder. Optionally, the upper roller assembly includes an upper roller, an upper roller shaft, a bearing, left and right limit blocks, and a limit plate; the upper roller shaft is connected to the upper roller through a bearing; the upper roller shaft can move up and down under the drive of the upper roller; a gap is left between the left and right limit blocks and the outer circle of the upper roller so that the strapping tape cannot pass through, thereby ensuring the smooth operation of the upper roller and preventing the strapping tape from being rolled into the upper roller; the limit plate is in a closed state with the frame during the operation of the mechanism to prevent the strapping tape from swinging away from the roller.

[0008] Optionally, the power mechanism motor is fixedly mounted on the frame, and the motor synchronously drives the lower roller of the recovery feeding mechanism to rotate through the synchronous belt of the auxiliary device; when recycling and feeding, the lower roller drives the upper roller of the recovery feeding mechanism to rotate through friction.

[0009] Optionally, after the packing tape enters the equipment, the upper roller assembly of the recovery feeding mechanism presses the packing tape downwardly by the compression cylinder of the recovery feeding mechanism, and the motor of the power mechanism drives the lower roller to rotate through the synchronous belt, and the packing tape is gradually sent out under the action of the upper and lower rollers.

[0010] Optionally, it also includes a recovery and shearing mechanism, which includes a tape cutting cylinder, a cutting knife group and a guide seat; the recovery and feeding mechanism is responsible for continuously conveying the strapping tape to the recovery and shearing mechanism, and the recovery and shearing mechanism is responsible for cutting the strapping tape into sections.

[0011] Optionally, a packing belt conveyor path is formed between the left and right limit blocks and the frame, and the recycling and shearing mechanism is provided on one side of the conveyor path.

[0012] Optionally, a guide partition is provided between the conveying path and the recycling shearing mechanism, and the guide partition is provided with a strapping guide path corresponding to the conveying path; the cutter group is provided on one side of the strapping guide path; the cutter group includes an upper blade and a lower blade; the upper blade is driven by a strap cutting cylinder to move up and down. Optionally, the guide seat is also included, and the guide seat is provided with a guide groove for guiding the upper blade.

[0013] Optionally, the limiting piece extends from the left and right limiting blocks to the guide seat to maintain the limiting of the strapping tape until the cutting is completed.

[0014] A strapping tape recycling and shearing method uses a strapping tape recycling roller shearing mechanism as described above, including: using an elastically retractable upper roller in combination with a lower roller to elastically roll the strapping tape to be recycled, and by arranging a conveying path and a strapping tape guide path behind the upper roller, the conveyed strapping tape is spatially limited, and the recycling and shearing mechanism is arranged behind the strapping tape guide path, and the strapping tape is sheared by an upper blade and a lower blade in an up and down shearing manner.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention sets the upper roller to be retractable, and the length of the spring will change with the thickness of the strapping tape. For the uneven thickness of a certain section of the strapping tape, the device can perform adaptive conveying and recycling and cutting. Even for the joints of the strapping tape with a double-layer structure, recycling and cutting can be performed without getting stuck.

[0017] 2. The present invention prevents the strapping belt from being rolled into the roller by the left and right limit blocks, and prevents the strapping belt from swinging away from the roller by the limit plate. Under the constraints of the left and right limit blocks and the limit plate, the strapping belt can be smoothly recovered.

[0018] 3. By setting the limit plate and the left and right limit blocks to limit the position, a conveyor path and a strapping guide path are formed. The pushing of the elastically set upper roller can significantly improve the shearing effect of the recycling shearing mechanism and significantly reduce the problem of equipment jamming due to inadequate shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the overall structure of the recycling and feeding mechanism of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the synchronous belt of the auxiliary device of the present invention;

[0022] Figure 3 It is a schematic diagram of the overall structure of the upper roller assembly of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the spring b of the present invention;

[0024] Figure 5 It is a schematic diagram of the combined structure of the recycling feeding mechanism and the recycling shearing mechanism of the present invention;

[0025] Figure 6 yes Figure 5 A schematic diagram of the structure after a guide baffle is provided;

[0026] Figure 7 yes Figure 6 Schematic diagram of the structure after the guide seat is set.

[0027] In the figure, 1. clamping cylinder; 2. upper roller assembly; 3. lower roller; 4. motor; 5. frame; 6. synchronous belt; 21. connecting bracket; 221. spring a; 222. spring b; 23. upper roller; 24. upper roller shaft; 25. bearing; 26. left and right limit blocks; 27. limit plate; 28. roller rear bracket; 29. ​​roller front bracket; 7. upper blade; 71. lower blade; 72. guide seat; 8. conveyor path; 81. guide partition; 82. strapping belt guide path; 9. strap cutting cylinder. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 understood as a limitation on the present invention.

[0029] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] A strapping tape recycling roller shearing mechanism comprises a recycling feeding mechanism, a power mechanism and auxiliary devices, wherein the recycling feeding mechanism comprises a clamping cylinder 1, an upper roller assembly 2 and a lower roller 3; the power mechanism comprises a motor 4, and the auxiliary devices comprise a frame 5 and a synchronous belt 6; the recycling feeding mechanism is responsible for continuously conveying the strapping tape, the power mechanism is responsible for providing power to the recycling feeding mechanism, and the auxiliary devices are responsible for connecting the motor 2 and the recycling feeding mechanism and conveying power to the recycling feeding mechanism.

[0032] Optionally, the clamping cylinder 1 of the recycling and feeding mechanism is fixedly mounted on the frame 5, the upper roller assembly 2 of the recycling and feeding mechanism is installed at the lower part of the push rod of the clamping cylinder 1, the lower roller 3 of the recycling and feeding mechanism is fixedly mounted on the frame 5 and driven to rotate by the motor 4, and the upper roller assembly 2 is driven to move vertically by the clamping cylinder 1.

[0033] Optionally, the upper roller assembly 2 at least includes a connecting bracket 21, a spring a221, a spring b222, an upper roller 23, an upper roller shaft 24, left and right limit blocks of the bearing 25, a limit plate 27, a roller rear bracket 28 and a roller front bracket 29; the connecting bracket 21 is connected to the clamping cylinder 1 by a fixed connection, the connecting bracket 21 is connected to the roller front bracket 29 and the roller rear bracket 28 by a fixing bolt, and the upper roller shaft 24 is connected to the upper roller 23 by a bearing 25; the upper roller shaft 24 can move up and down in the middle small hole of the roller front bracket 29 and the roller rear bracket 28 under the drive of the upper roller 23; the main body of the spring a221 is located at the front of the roller Inside the bracket 29, the main body of the spring b222 is located inside the roller rear bracket 28. This structure can prevent the spring from slipping and swinging. One end of the two springs is connected to the connecting bracket 21, and the other end is connected to the roller shaft 24; the upper roller 23 floats up and down according to the thickness change of the strapping tape under the action of the spring; the roller front bracket 29 is connected to the left and right limit blocks 26 and the limit plate 27 by bolts, and a gap through which the strapping tape cannot pass is left between the left and right limit blocks 26 and the outer circle of the upper roller 23, thereby ensuring the smooth operation of the upper roller and preventing the strapping tape from being rolled into the upper roller; the limit plate 27 is in a closed state with the frame 5 during the operation of the mechanism to prevent the strapping tape from swinging away from the roller.

[0034] The length of the spring will change with the thickness of the strapping tape, ensuring that the strapping tape and the hot-melt double-layer joint can pass through the recycling feeding mechanism smoothly to avoid tape jamming; the upper roller has a surface groove to ensure friction, so that the strapping tape does not slip through the recycling feeding mechanism. At the same time, the surface groove structure combined with the extrusion force of the spring can also play an elastic rolling effect on the strapping tape. Some bent areas of the strapping tape that need to be used can be effectively rolled (flattened) to ensure smooth transmission and provide protection for the subsequent shearing effect.

[0035] A gap through which the strapping tape cannot pass is left between the left and right limit blocks and the upper roller to prevent the strapping tape from being rolled into the roller and causing the roller to be stuck during the recycling and feeding process, thereby avoiding recycling failure caused by equipment shutdown; the limit plate is in a closed state with the frame during the operation of the mechanism to prevent the strapping tape from swinging and deviating; under the action of the limit plate and the restriction of the limit block, the strapping tape will smoothly enter the recycling and cutting mechanism.

[0036] When in use, the compression cylinder 1 drives the upper roller assembly 2 to move downward, and the upper roller assembly 2 presses the strapping tape downward. Under the action of the spring, the upper roller 23 moves up and down according to the thickness change of the strapping tape to ensure that the pressure on the strapping tape is sufficient; at this time, the lower roller 3 starts to rotate under the drive of the motor, and the strapping tape is transported out of the recycling feeding mechanism under the rolling of the upper and lower rollers.

[0037] Optionally, the power mechanism motor 4 is fixedly mounted on the frame 5, and the motor 4 synchronously drives the lower roller 3 of the recovery feeding mechanism to rotate through the synchronous belt 6 of the auxiliary device; when recycling and feeding, the lower roller 3 drives the upper roller 23 of the recovery feeding mechanism to rotate through friction.

[0038] Optionally, after the packing tape enters the equipment, the upper roller assembly 2 of the recovery feeding mechanism presses the packing tape downwardly under the clamping cylinder 1 of the recovery feeding mechanism, and the motor 4 of the power mechanism drives the lower roller 3 to rotate through the synchronous belt 6, and the packing tape is gradually sent out under the action of the upper and lower rollers.

[0039] Optionally, it also includes a recovery and shearing mechanism, which includes a tape cutting cylinder 9, a cutting knife group and a guide seat 72; the recovery feeding mechanism is responsible for continuously conveying the strapping tape to the recovery and shearing mechanism, and the recovery and shearing mechanism is responsible for segmented shearing of the strapping tape.

[0040] Optionally, a packing belt conveyor path 8 is formed between the left and right limit blocks 26 and the frame 5 , and the recycling and shearing mechanism is provided on one side of the conveyor path 8 .

[0041] Optionally, a guide partition 81 is provided between the conveying path 8 and the recycling and shearing mechanism, and a strapping guide path 82 is provided on the guide partition 81 corresponding to the conveying path 8; the cutter group is provided on one side of the strapping guide path 82; the cutter group includes an upper blade 7 and a lower blade 71; the upper blade 7 is driven by the strap cutting cylinder 9 to move up and down. The limiting piece 27 extends from the left and right limiting blocks 26 to the guide seat 72 to maintain the limiting position of the strapping until the shearing is completed.

[0042] The beneficial effects of adopting the above scheme are:

[0043] By squeezing the upper roller assembly 2 and the lower roller 3, the elastic clamping and conveying of the strapping tape is realized, which improves the conveying effect and prevents the occurrence of tape jamming. At the same time, elastic squeezing is realized to have a rolling effect on the conveyed strapping tape, and a rolling and flattening effect is played on a certain section of bent strapping tape. As for the double-layer strapping tape phenomenon at the knotted connection, when the squeezing force is too large, the spring contracts and does not affect the normal transmission of the strapping tape.

[0044] The conveying path 8 and the packing belt guide path 82 are provided. Figures 5 to 7 As shown, it is mainly for the purpose of limiting the stress that may appear on the strapping belt during the above process and effectively limiting the space of the strapping belt to prevent the strapping belt from warping and deviating due to the large stress during the above process, thereby affecting the subsequent shearing effect.

[0045] Optionally, the guide seat 72 is further included, and the guide seat 72 is provided with a guide groove for guiding the upper blade 7.

[0046] The present invention solves the problems in the background technology, and its operating principle is as follows:

[0047] First, if Figure 1 As shown, the strapping tape is fed in from the left side between the upper roller assembly 2 and the lower roller 3, and is rolled and flattened by the elastic extrusion of the upper roller assembly 2 and the rolling of the surface groove of the upper roller 23. The front end of the strapping tape is limited by the conveying path 8 and the strapping tape guide path 82 and continues to be conveyed, which effectively avoids the strapping tape from getting stuck in the rotating roller body or curling. After being conveyed to the recovery and shearing mechanism, the strapping tape is sheared by relying on the double-blade combination of the upper blade 7 and the lower blade 71 in an up and down movable manner, which significantly improves the shearing effect and prevents the strapping tape from being continuously sheared while being continuously conveyed from the rear, causing curling and accumulation at the cutter and jamming the equipment. The use effect is good.

[0048] A strapping tape recycling and shearing method uses a strapping tape recycling roller shearing mechanism as described above, comprising: using an elastically retractable upper roller (23) in combination with a lower roller to elastically roll the strapping tape to be recycled, and providing a conveying path and a strapping tape guide path behind the upper roller (23) to limit the conveyed strapping tape in space, and providing a recycling and shearing mechanism behind the strapping tape guide path, and using an upper blade and a lower blade to shear the strapping tape in an up-and-down manner.

[0049] This method can achieve the following: 1. Effectively prevent used strapping tape (especially strapping tape that is bent, thinned, or has double layers at the joints) from getting stuck or curling inside the equipment; 2. By first elastically squeezing the strapping tape and rolling it flat, the stress is effectively limited while ensuring the flatness of the strapping tape before shearing (keeping the strapping tape in a good cutting position), thereby significantly improving the success rate of shearing and ensuring the effect of shearing.

[0050] The above description of the embodiments enables those skilled in the art to implement or use the present invention, and various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A strapping recycling roller shearing mechanism, characterized in that: The invention comprises a recycling feeding mechanism, a power mechanism and auxiliary devices, wherein the recycling feeding mechanism comprises a pressing cylinder (1), an upper roller assembly (2) and a lower roller (3); the power mechanism comprises a motor (4), and the auxiliary devices comprise a frame (5) and a synchronous belt (6); the recycling feeding mechanism is responsible for continuously conveying the strapping tape, the power mechanism is responsible for providing power to the recycling feeding mechanism, and the auxiliary devices are responsible for connecting the motor (2) and the recycling feeding mechanism and conveying power to the recycling feeding mechanism; the invention also comprises a recycling shearing mechanism, wherein the recycling shearing mechanism comprises a tape cutting cylinder (9), a cutting knife group and a guide seat (72); the recycling feeding mechanism is responsible for continuously conveying the strapping tape to the recycling shearing mechanism, and the recycling shearing mechanism is responsible for segmentally shearing the strapping tape.

2. According to claim 1, a strapping tape recycling roller shearing mechanism is characterized in that: The pressing cylinder (1) of the recycling feeding mechanism is fixedly mounted on the frame (5), the upper roller assembly (2) of the recycling feeding mechanism is mounted on the lower part of the push rod of the pressing cylinder (1), the lower roller (3) of the recycling feeding mechanism is fixedly mounted on the frame (5) and driven to rotate by the motor (4), and the upper roller assembly (2) is driven to move vertically by the pressing cylinder (1).

3. According to claim 1, the automatic recovery and cutting device for box strapping is characterized in that: The upper roller assembly (2) comprises an upper roller (23), an upper roller shaft (24), a bearing (25), left and right limit blocks (26), and a limit plate (27); the upper roller shaft (24) is connected to the upper roller (23) via the bearing (25); the upper roller shaft (24) can move up and down under the drive of the upper roller (23); a gap through which the strapping tape cannot pass is left between the left and right limit blocks (26) and the outer circle of the upper roller (23), thereby ensuring the smooth operation of the upper roller and preventing the strapping tape from being rolled into the upper roller; the limit plate (27) is in a closed state with the frame (5) during the operation of the mechanism to prevent the strapping tape from swinging away from the roller.

4. According to claim 1, a strapping tape recycling roller shearing mechanism is characterized in that: The power mechanism motor (4) is fixedly mounted on the frame (5), and the motor (4) synchronously drives the lower roller (3) of the recovery feeding mechanism to rotate through the synchronous belt (6) of the auxiliary device; when the recovery feeding is performed, the lower roller (3) drives the upper roller (23) of the recovery feeding mechanism to rotate through friction.

5. According to claim 1, a strapping tape recycling roller shearing mechanism is characterized in that: After the strapping tape enters the device, the upper roller assembly (2) of the recycling and feeding mechanism presses the strapping tape downwards under the compression cylinder (1) of the recycling and feeding mechanism, and the motor (4) of the power mechanism drives the lower roller (3) to rotate through the synchronous belt (6), and the strapping tape is gradually fed out under the action of the upper and lower rollers.

6. A strapping tape recycling roller shearing mechanism according to claim 3, characterized in that: A packing belt conveyor path (8) is formed between the left and right limit blocks (26) and the frame (5), and the recycling shearing mechanism is arranged on one side of the conveyor path (8).

7. A strapping tape recycling roller shearing mechanism according to claim 6, characterized in that: A guide baffle (81) is provided between the conveying path (8) and the recycling shearing mechanism; the guide baffle (81) is provided with a strapping guide path (82) corresponding to the conveying path (8); the cutter group is provided on one side of the strapping guide path (82); the cutter group comprises an upper blade (7) and a lower blade (71); the upper blade (7) is driven to move up and down by a strap cutting cylinder (9).

8. A strapping tape recycling roller shearing mechanism according to claim 7, characterized in that: It also includes the guide seat (72), wherein the guide seat (72) is provided with a guide groove for guiding the upper blade (7).

9. A strapping tape recycling roller shearing mechanism according to claim 8, characterized in that: The limiting piece (27) extends from the left and right limiting blocks (26) to the guide seat (72) to maintain the limiting of the strapping belt until the shearing is completed.

10. A method for recycling and cutting a packing tape, characterized in that: A strapping tape recycling roller shearing mechanism as claimed in any one of claims 1 to 9 comprises: using an elastically retractable upper roller (23) in combination with a lower roller to elastically roll the strapping tape to be recycled, and arranging a conveying path and a strapping tape guide path behind the upper roller to spatially limit the conveyed strapping tape, and arranging a recycling shearing mechanism behind the strapping tape guide path, and shearing the strapping tape by an upper blade and a lower blade in an up-and-down shearing manner.

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