Quick tape changing mechanism of box opening machine

Abstract

The application discloses a quick tape replacing mechanism of a box opening machine, which comprises a rack, a feeding device arranged on the rack and a quick tape replacing mechanism arranged below the feeding device. The feeding device comprises horizontal feeding devices arranged in parallel and a lifting feeding device. The lifting feeding device is connected to the rack in a lifting mode through a lifting support. The quick tape replacing mechanism comprises a core arranged between the horizontal feeding devices and the lifting feeding device and a sliding support for placing the core. The sliding support is connected to the rack in a sliding mode. The application has simple structure and can realize quick tape replacing of the box opening machine and improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of case opener technology, and more particularly to a quick tape changing mechanism for a case opener. Background Technology

[0002] Vertical carton erectors have been around for decades. Although they can now be fully automated, when the tape used to seal the bottom of a carton runs out, a full roll of tape needs to be replaced. Since the sealing tape roll is in the middle of the erector, this requires stopping the machine, opening the safety door, and widening the gap in the sealing drive belt. Some models even require raising the pressure plate of the pressure box to replace the tape roll. After replacing the tape roll, the machine needs to be reset in reverse, which is time-consuming, requires skilled operators, and severely impacts production efficiency. Therefore, improvements are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a quick tape changing mechanism for a carton opener. It adopts a drawer-type sliding bracket, which allows the tape roll to be pulled out of the carton opener along with the machine core, thereby solving the problem of automatic tape changing and greatly shortening the tape changing time. The tape changing work can be completed without stopping the machine or the production line.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A quick tape changing mechanism for a carton opener includes a frame, a feeding device disposed on the frame, and a quick tape changing mechanism disposed below the feeding device. The feeding device includes a horizontal feeding device and a lifting feeding device arranged in parallel. The two ends of the lifting feeding device are respectively connected to the frame in a lifting manner via lifting brackets. The quick tape changing mechanism includes a core disposed between the horizontal feeding device and the lifting feeding device and a sliding bracket for placing the core. The sliding bracket is slidably connected to the frame.

[0006] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the two ends of the horizontal feeding device and the lifting feeding device are respectively set on the frame by lead screws, and the horizontal feeding device and the lifting feeding device slide relative to or towards each other on the lead screws.

[0007] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the lifting bracket includes a mounting seat fixed to the outside of the corresponding lead screw nut and a lifting cylinder vertically fixed to the mounting seat, and the top end of the piston rod of the lifting cylinder is connected to the bottom surface of the lifting feeding device.

[0008] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the lifting cylinder is connected to the bottom surface of the lifting and feeding device via a guide rod, and the guide rod is slidably connected to the mounting base via a guide seat.

[0009] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the sliding bracket is a drawer structure formed by a front panel, a bottom plate and two side panels. One of the side panels is slidably mounted on the frame via a drive chain, and the inner sides of the two side panels are provided with positioning plates corresponding to the mechanism.

[0010] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the frame is provided with a spare core compartment, a core recycling compartment and a material changing device on the side near the sliding support. The spare core compartment and the core recycling compartment are symmetrically arranged on both sides of the sliding support. The material changing device includes a first material changing cylinder that travels back and forth between the spare core compartment and the sliding support and a second material changing cylinder that travels back and forth between the sliding support and the core recycling compartment.

[0011] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, the first material changing cylinder and the second material changing cylinder are slidably mounted on the frame via guide rails and driven by push cylinders.

[0012] Preferably, in the quick tape changing mechanism of the above-mentioned box opener, grippers are respectively provided at the piston rod ends of the first material changing cylinder and the second material changing cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] This invention features a simple structure and a liftable feeding device that, together with a drawer-type sliding bracket, allows the tape roll to be pulled out of the box opener along with the machine core. This solves the problem of automatic tape replacement and greatly shortens the tape replacement time. The tape replacement can be completed without stopping the machine or the production line, thus improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the quick tape changing mechanism of the box opener in a specific embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the installation of the drive chain in a specific embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the backup core compartment in a specific embodiment of the present invention.

[0018] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0019] Figure 5 This is a schematic diagram of the mechanism recovery compartment in a specific embodiment of the present invention.

[0020] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0021] Figure 7 This is a diagram showing the normal working state of the box opener in a specific embodiment of the present invention.

[0022] Figure 8 This is a diagram showing the raised state of the lifting and feeding device in a specific embodiment of the present invention.

[0023] Figure 9 This is a diagram showing the sliding bracket sliding out of the frame in a specific embodiment of the present invention.

[0024] Figure 10 This is a diagram showing the material handling status of the first and second material changing cylinders in a specific embodiment of the present invention.

[0025] Figure 11 This is a diagram showing the working state of the material changing device in a specific embodiment of the present invention.

[0026] Figure 12 This is a diagram showing the working state of the push cylinder in a specific embodiment of the present invention.

[0027] Figure 13 This is a diagram showing the material discharge state of the first and second material changing cylinders in a specific embodiment of the present invention.

[0028] Figure 14 This is a diagram showing the reset state of the first and second material changing cylinders in a specific embodiment of the present invention.

[0029] Figure 15 This is a diagram showing the reset state of the sliding bracket in a specific embodiment of the present invention.

[0030] Figure 16 This is a diagram showing the reset state of the material handling device and the lifting and feeding device in a specific embodiment of the present invention.

[0031] Figure 17 This is a state diagram after the work is completed in a specific embodiment of the present invention. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Reference Figures 1 to 17 A quick tape changing mechanism for a carton opener includes a frame 1, a feeding device disposed on the frame 1, and a quick tape changing mechanism disposed below the feeding device. The feeding device includes a horizontal feeding device 2 and a lifting feeding device 3 disposed in parallel. The two ends of the lifting feeding device 3 are respectively connected to the frame 1 by lifting brackets 4. The quick tape changing mechanism includes a core 5 disposed between the horizontal feeding device 2 and the lifting feeding device 3 and a sliding bracket 6 for placing the core. The sliding bracket 6 is slidably connected to the frame 1.

[0034] In this technical solution, the mechanism can be any existing mechanism, such as those described in Chinese patents CN201921340190.6 or CN201810610236.5. The carton erector necessarily includes conventional structures such as a carton positioning device, a carton suction device, a carton pressing plate, a material storage trough, and a carton pressing plate, which will not be described in detail here. The horizontal feeding device can also use an existing structure, and the lifting feeding device is set on the side away from the operating surface. The lifting feeding device, in conjunction with the drawer-type sliding bracket, allows the tape roll to be pulled out of the carton erector along with the mechanism, thereby solving the problem of automatic tape replacement and greatly shortening the tape replacement time. The tape replacement work can be completed without stopping the machine or the production line, thus improving work efficiency.

[0035] Furthermore, the two ends of the horizontal feeding device 2 and the lifting feeding device 3 are respectively set on the frame 1 via screw 11, and the horizontal feeding device 2 and the lifting feeding device 3 slide relative to or towards each other on the screw 11 via nuts on the screw.

[0036] In this technical solution, the structure of the horizontal feeding device and the lifting feeding device are existing technologies, including motors, belts, and brackets, which will not be elaborated here. The two ends of the lead screw are respectively mounted on the frame through bearing seats, and the two lead screws are synchronously linked through chains 111, etc. The rotation of the lead screw is driven by handwheel 112 or motor. During the rotation of the lead screw, the horizontal feeding device and the lifting feeding device move relative to or towards each other, so as to be suitable for the production of cartons of different specifications.

[0037] Furthermore, the lifting bracket 4 includes a mounting base 41 fixed to the outside of the corresponding lead screw nut and a lifting cylinder 42 vertically fixed to the mounting base 41. The top end of the piston rod of the lifting cylinder 42 is connected to the bottom surface of the lifting and feeding device 3.

[0038] In this technical solution, the lifting bracket can move horizontally together with the lifting and feeding device. The piston rod of the lifting cylinder drives the lifting and feeding device to rise and fall, making way for the sliding bracket to be pulled out. There is no need to open the safety door or raise the carton pressure plate, making the operation simple and quick.

[0039] Furthermore, the lifting cylinder 42 is connected to the bottom surface of the lifting and feeding device 3 via the guide rod 43, and the guide rod 43 is slidably connected to the mounting base 41 via the guide seat.

[0040] In this technical solution, the piston rod end of the lifting cylinder is directly connected to the bottom of the guide rod through a threaded connection. The guide rod is an optical shaft, and the guide seat is a guide bushing or linear bearing, etc. Through the cooperation of the guide rod and the guide seat, the lifting and feeding device is always in the vertical direction. The top of the guide rod is directly or through a connector to the lifting bracket.

[0041] Furthermore, the sliding bracket 6 is a drawer structure formed by a panel 61, a base plate 62 and two side plates 63. One side plate is slidably mounted on the frame via a drive chain, and the inner sides of the two side plates are provided with positioning plates 64 corresponding to the movement.

[0042] In this technical solution, a handle is also provided on the outer side of the panel, and the inner side of the panel is fixed to the ends of the two side panels by angle iron. The outer sides of the two side panels are connected to the frame by drawer slide rails and driven by a drive chain. The drive chain is rotatably connected to the frame by a sprocket, one of which is connected to a drive motor. The drive chain drives the sliding bracket to move back and forth in and out of the frame.

[0043] Furthermore, the frame is provided with a spare core compartment 7, a core recovery compartment 8 and a material changing device 9 on the side near the sliding support. The spare core compartment 7 and the core recovery compartment 8 are symmetrically arranged on both sides of the sliding support. The material changing device 9 includes a first material changing cylinder 91 that travels back and forth between the spare core compartment 7 and the top of the sliding support and a second material changing cylinder 92 that travels back and forth between the top of the sliding support and the top of the core recovery compartment 8.

[0044] In this technical solution, the spare mechanism compartment and the mechanism recovery compartment are at the same horizontal height as the sliding support. They each include a base fixed to the frame and a surrounding plate set on the base. The inner sides of the base are equipped with conveyor belts with baffles. The conveyor belts are rotatably set on the corresponding bases via pulleys. The pulleys are set on the bases by conventional structures such as shafts. One end of the shaft is connected to a gear and is driven by a cylinder, electric cylinder, or motor through a rack or gear.

[0045] Furthermore, the first material changing cylinder 91 and the second material changing cylinder 92 are slidably mounted on the frame via guide rail 93 and are driven by push cylinder 94.

[0046] Furthermore, grippers 95 are respectively provided at the ends of the piston rods of the first material changing cylinder 91 and the second material changing cylinder 92.

[0047] In the two technical solutions mentioned above, the first material changing cylinder and the second material changing cylinder are fixed to the slider of the guide rail by the fixed bracket 96. The push cylinder simultaneously pushes the first material changing cylinder and the second material changing cylinder to move back and forth. The gripper can be directly selected from the existing gripper cylinder for gripping the core.

[0048] In actual production, the carton erector operates normally. When the tape inside the carton erector is almost used up (as detected by conventional sensors), the carton erector will alarm, seal the bottom of the carton inside the machine, and push it out of the carton erector. The next carton will stop outside the sealing area to wait for the automatic tape replacement to be completed. The lifting and feeding device rises under the action of the lifting cylinder. The drive chain pulls the core with used tape from inside the carton erector to outside the frame of the carton erector through the sliding bracket. The fixed brackets of the first and second material changing cylinders are in the starting position (the push cylinder is in the retracted state), which is the position for picking up the core. The piston rods of the first and second material changing cylinders extend from the cylinders respectively. The gripper action of the first material changing cylinder grabs the first spare core in the core spare compartment (this core has a full tape). The gripper action of the second material changing cylinder grabs... The core mechanism inside the drawer-type frame (the tape on this core mechanism has been used up); the piston rods of the first and second changing cylinders reset, and the core mechanisms held by the corresponding grippers are lifted to their highest positions; the piston rod of the push cylinder extends, pushing the fixed brackets of the first and second changing cylinders to the end position (the position where the core mechanism is lowered), and the held spare core mechanism (this core mechanism has been filled with tape) is moved to the top of the sliding bracket, and the held core mechanism (this core mechanism has been used up) is moved to the top of the core mechanism recycling compartment; the first changing cylinder and the second The piston rods of the material changing cylinders extend from the cylinders respectively. The corresponding grippers place the clamped spare core (which is full of tape) into the sliding bracket and then release it. The corresponding grippers then place the clamped core (which has run out of tape) into the core recovery chamber and then release it. This completes the process of placing the core from the spare chamber into the sliding bracket, and simultaneously placing the core with used tape into the spare chamber. The piston rods of the first and second material changing cylinders reset, and the drive chain brings the sliding bracket containing the corresponding spare core back to its working position within the frame. Lifting... The feeding device is reset under the action of the lifting cylinder, and the box opener works normally. At the same time, the pushing cylinder drives the fixed bracket to reset. Each time, a core filled with tape is taken out from the spare compartment and placed into the sliding bracket. At the same time, a core with used tape is taken out from the drawer-type core bracket and placed into the core recycling compartment. The conveyor belt with baffles in the base sends the next spare core to the gripping position or sends the recycled core to the recycling position. The size of the spare compartment and the recycling compartment can be set according to the actual production needs to meet the purpose of automatically replenishing tape in one shift or all day, realizing automated production.

[0049] In summary, the present invention features a compact structure and a height-adjustable lifting and feeding device, which, together with a drawer-type sliding bracket, allows the tape roll to be pulled out of the box opener along with the machine core, thereby solving the problem of automatic tape replacement and greatly shortening the tape replacement time. The tape replacement work can be completed without stopping the machine or the production line, thus improving work efficiency.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A quick tape changing mechanism of a case unpacking machine, characterized by: The machine frame, the feeding device arranged on the machine frame, and the quick tape changing mechanism arranged below the feeding device, the feeding device comprises horizontal feeding device and lifting feeding device arranged in parallel, the lifting feeding device is arranged on the side far from the operation surface, and the two ends of the lifting feeding device are respectively connected to the machine frame through the lifting support in a lifting mode, the quick tape changing mechanism comprises the machine core arranged between the horizontal feeding device and the lifting feeding device and the sliding support for placing the machine core, the sliding support is connected to the machine frame in a sliding mode, the two ends of the horizontal feeding device and the lifting feeding device are arranged on the machine frame through the lead screw, the horizontal feeding device and the lifting feeding device slide on the lead screw in opposite or opposite directions, the lifting support comprises the mounting base fixed to the outer side of the corresponding lead screw nut and the lifting cylinder vertically fixed to the mounting base, the piston rod top end of the lifting cylinder is connected to the bottom surface of the lifting feeding device, the lifting cylinder is connected to the bottom surface of the lifting feeding device through the guide rod, and the guide rod is connected to the mounting base in a sliding mode through the guide seat; The side of the machine frame close to the sliding support is provided with a standby machine core cabin, a machine core recycling cabin and a material changing device, the standby machine core cabin and the machine core recycling cabin are symmetrically arranged on the two sides of the sliding support, the material changing device comprises a first material changing cylinder reciprocating above the standby machine core cabin and the sliding support and a second material changing cylinder reciprocating above the sliding support and the machine core recycling cabin. In actual production, the opening box machine works normally. When the adhesive tape in the opening box machine is about to be used up, the opening box machine will alarm and complete the bottom sealing of the carton in the machine, push the carton out of the opening box machine, and the next carton will stop outside the sealing area to wait for the automatic replacement of the adhesive tape to be completed. The lifting feeding device is lifted under the action of the lifting cylinder, the drive chain drives the machine core with the used adhesive tape to be pulled from the inside of the opening box machine to the outside of the machine frame of the opening box machine through the sliding support, the fixed supports of the first and second material replacement cylinders are at the starting position, that is, the position of extracting the machine core, the piston rods of the first and second material replacement cylinders respectively extend from the cylinders, the gripper of the first material replacement cylinder acts to grab the first spare machine core in the spare cabin of the machine core, and the gripper of the second material replacement cylinder acts to grab the machine core in the drawer type machine frame, the piston rods of the first and second material replacement cylinders are reset, and the machine cores gripped by the corresponding grippers are respectively lifted to the highest position, the piston rod of the push cylinder extends to push the fixed supports of the first and second material replacement cylinders to the terminal position, the spare machine core gripped is moved to the top of the sliding support, and the machine core gripped is moved to the top of the recycled machine core cabin, the piston rods of the first and second material replacement cylinders respectively extend from the cylinders, the corresponding grippers release the spare machine core gripped in the sliding support and the machine core gripped in the machine core recycling cabin after the spare machine core is put into the sliding support and the machine core is put into the machine core recycling cabin, so that the work of putting the machine core in the spare cabin into the sliding support and putting the machine core with the used adhesive tape into the spare cabin is completed, the piston rods of the first and second material replacement cylinders are reset, the drive chain takes the sliding support with the corresponding spare machine core back to the working position in the machine frame, the lifting feeding device is reset under the action of the lifting cylinder, and the opening box machine works normally. At the same time, the push cylinder drives the fixed supports to be reset, one machine core filled with adhesive tape is taken out from the spare cabin and put into the sliding support each time, the machine core with the used adhesive tape is taken out from the drawer type machine core support and put into the machine core recycling cabin, and the conveying belt with baffles in the base sends the next spare machine core to the grabbing position or sends the recycled machine core away from the recycling position.

2. The quick tape changing mechanism of an opening box machine according to claim 1, wherein, The sliding support is a drawer structure surrounded by a panel, a bottom plate and two side plates, one side plate is slidably arranged in the machine frame through a drive chain, and the inner sides of the two side plates are provided with positioning plates corresponding to the machine cores.

3. The quick tape changing mechanism of an opening box machine according to claim 1, wherein, The first and second material replacement cylinders are slidably arranged in the machine frame through guide rails and are driven by the push cylinder.

4. The quick tape changing mechanism of an opening box machine according to claim 1, wherein, The piston rods of the first and second material replacement cylinders are respectively provided with grippers at the ends.

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