A paper tube dispensing device

Abstract

The application discloses a paper tube sub-packaging device, which comprises a indexing device, the indexing device comprises a mounting frame arranged above a first conveying line, the front end of the mounting frame is connected with symmetrical limiting baffle plates, and a tray limiting space for placing a tray is formed between the symmetrical limiting baffle plates; a mounting plate is connected to the mounting frame in a liftable manner, two push rods are symmetrically arranged on the mounting plate and are rotationally connected with the mounting plate, and a push piece is connected to each push rod; the push piece has at least a first position and a second position, in the first position, the push pieces on the two push rods are located in the tray limiting space, and in the second position, the push pieces on the two push rods are located outside the tray limiting space. The application does not need to increase an intermediate station, directly makes the stacked trays transferred to the conveying line one by one, and has the advantages of simple structure, time saving and labor saving.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and specifically to a paper tube dispensing device. Background Technology

[0002] In automated paper tube packaging production lines, paper tubes need to be placed on pallets before being wrapped with film. Current automated packaging lines typically use conveyor lines to transport pallets, with robotic arms picking up the bundled paper tubes and placing them onto the pallets to complete the initial transfer of packaging. Pallet placement on the conveyor line can be done manually or by using robotic arms. Regardless of the method, stacked pallets must be transferred one by one to the conveyor line to ensure the robotic arms can place the bundled paper tubes onto the appropriate pallets.

[0003] This method of transferring stacked pallets is time-consuming, labor-intensive, and cumbersome, and it also requires an intermediate transfer step. How to transfer stacked pallets one by one directly to the conveyor line is a problem we need to solve. Summary of the Invention

[0004] The purpose of this invention is to provide a paper tube dispensing device to solve the problems of complex structure, time and labor consumption caused by the need to add intermediate transfer links when transferring stacked pallets to the conveyor line in the prior art.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0006] A paper tube dispensing device includes an indexing device, the indexing device including an installation frame disposed above a first conveyor line, the front end of the installation frame being connected to symmetrical limiting baffles, and a pallet limiting space for placing a pallet being formed between the symmetrical limiting baffles.

[0007] The mounting frame is equipped with a lifting and lowering mounting plate. Two levers are symmetrically arranged on the mounting plate, and the levers are rotatably connected to the mounting plate. A lever is connected to a paddle.

[0008] The paddle has at least a first position and a second position. In the first position, the paddles on the two levers are located within the tray limiting space, and in the second position, the paddles on the two levers are located outside the tray limiting space.

[0009] Furthermore, the limiting baffle is L-shaped, and the two symmetrical limiting baffles are used to restrict the two corners of the square tray.

[0010] Furthermore, an electric push rod is connected to the mounting plate, and the output end of the electric push rod is connected to the lever to drive the lever to rotate.

[0011] Furthermore, a rotating rod is rotatably connected to the top of the interior of the mounting frame, and connecting rods are connected to both ends of the rotating rod. The connecting rods are connected to the mounting plate via chains; the rotating rod rotates to drive the mounting plate to rise and fall.

[0012] Furthermore, the mounting plate is connected to connecting side plates on both ends, and positioning guide rods are fixed on both sides inside the mounting frame. Multiple guide wheels that are tactilely connected to the positioning guide rods are connected to the connecting side plates, and the multiple guide wheels are respectively located on both sides of the positioning guide rods.

[0013] Furthermore, it also includes a first gripping device, which includes a first robotic arm and a first gripping mechanism connected to the end of the first robotic arm;

[0014] The first gripping mechanism includes a connecting frame, on which two positioning gripping devices are movably connected, and each positioning gripping device includes multiple positioning blocks.

[0015] Furthermore, multiple guide rods are connected within the connecting frame, and the positioning and gripping device is slidably connected to the guide rods;

[0016] A belt mechanism is connected within the connecting frame. The belt in the belt mechanism is connected to the positioning and gripping device via a connecting block, so as to drive the positioning and gripping device to move.

[0017] Furthermore, it also includes a second gripping device, which includes a second gripping mechanism, and the second gripping mechanism includes a mounting base plate, on which a plurality of parallel guide rods are provided;

[0018] Multiple suction cup mounting plates are slidably connected to the guide rod, and each suction cup mounting plate is connected to a suction cup;

[0019] The mounting base plate is also provided with a first screw mechanism. Multiple sliders are connected to the screw of the first screw mechanism. Each slider is connected to a suction cup mounting plate. The screw rotates to adjust the distance between the suction cup mounting plates.

[0020] Furthermore, the screw in the first screw mechanism has no threads in the middle section, and the threads at both ends have opposite directions of rotation;

[0021] There are at least three suction cup mounting plates. One suction cup mounting plate is connected to the unthreaded part of the screw, and the other two suction cup mounting plates are connected to the screws at both ends.

[0022] Furthermore, a handwheel is provided at the end of the screw.

[0023] According to the above technical solution, the beneficial effects of the present invention are as follows:

[0024] In this application, the dispensing device is used by placing the lever in the first position, inserting the lever into the tray within the tray limiting space, and then raising the mounting plate to lift the stacked trays, leaving only the bottom tray. The bottom tray that is not lifted is moved away with the first conveyor line, and then the lifted tray is lowered. Repeating the operation can transfer the stacked trays one by one to the conveyor line. This application does not require adding intermediate stations and directly transfers the stacked trays one by one to the conveyor line. The structure is simple and saves time and effort. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the arrangement of the indexing device, the first gripping device, and the first conveyor line of the present invention.

[0026] Figure 2 for Figure 1 Structural diagrams from different perspectives;

[0027] Figure 3 This is a schematic diagram of the indexing device and the first gripping device in this invention;

[0028] Figure 4 This is a schematic diagram of the layout structure of the first gripping device in this invention;

[0029] Figure 5 This is a schematic diagram of the indexing device in this invention;

[0030] Figure 6 for Figure 5 Partial structural diagram;

[0031] Figure 7 This is a schematic diagram of the structure of the second conveyor line and the second gripping device in this invention;

[0032] Figure 8 for Figure 7 Structural diagrams from different perspectives;

[0033] Figure 9 for Figure 7 A partial structural diagram;

[0034] Figure 10 for Figure 9 A partial structural diagram;

[0035] Figure 11 for Figure 10 A magnified view of a portion of the image;

[0036] Figure 12 This is a schematic diagram of the overall structure of the present invention.

[0037] Wherein: 1. First gripping device; 11. First robotic arm; 12. First gripping mechanism; 121. Connecting frame; 122. Guide rod; 123. Belt mechanism; 124. Connecting plate; 125. Positioning block; 2. Indexing device; 21. Mounting frame; 22. Limiting baffle; 23. Lever; 24. Lever; 25. Mounting plate; 26. Electric push rod; 27. Connecting side plate; 28. Guide wheel; 29. ​​Positioning guide rod; 210. Chain; 211. Connecting rod; 212. Rotating rod; 3. 1. Conveyor line; 4. Turntable mechanism; 5. Second conveyor line; 51. Conveyor line; 52. Second cylinder; 6. Paper tube collection mechanism; 61. Collection base plate; 62. Collection side plate; 7. Second gripping device; 71. Second robotic arm; 72. Second gripping mechanism; 721. Mounting base plate; 722. First screw mechanism; 723. Guide rod; 724. Suction cup mounting plate; 725. Suction cup; 8. Feeding mechanism; 81. Support frame; 82. Side baffle; 83. Push plate; 84. Second screw mechanism. Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] It should be noted that in the description of this invention, the terms "front," "rear," "left," "right," "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "front," "rear," "left," "right," "upper," and "lower" used in the description of this invention refer to the directions shown in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0040] like Figures 1 to 12 As shown, a paper tube dispensing device includes an indexing device 2. The indexing device 2 includes an installation frame 21 disposed above a first conveyor line 3. The front end of the installation frame 21 is connected to symmetrical limiting baffles 22, and a pallet limiting space for placing a pallet is formed between the symmetrical limiting baffles 22. An installation plate 25 is vertically connected inside the installation frame 21. Two levers 23 are symmetrically arranged on the installation plate 25, and the levers 23 are rotatably connected to the installation plate 25. A lever 24 is connected to the lever 23. The lever 24 has at least a first position and a second position. In the first position, the levers 24 on the two levers 23 are located within the pallet limiting space. In the second position, the levers 24 on the two levers 23 are located outside the pallet limiting space.

[0041] In this application, the first and second positions of the lever 24 are achieved by rotating the lever 23. Rotating the lever 23 can place the lever 24 within the tray limiting space, and rotating the lever 24 can also move the lever outside the tray limiting space.

[0042] In the first position, the lever 24 is located within the pallet limiting space and can be used to lift stacked pallets. The height of the lever 24 is above the top surface of the bottommost pallet and below the bottom surface of the second pallet from the bottom. Raising the mounting plate 25 can lift the remaining stacked pallets except for the bottommost pallet. In the second position, the lever 24 is located outside the pallet limiting space to return the stacked pallets to the first conveyor line.

[0043] In addition to the first and second positions, the paddle also has a third position. The third position is at a different height than the first position. That is, the first position is raised to a certain height to become the third position. When the paddle 24 is in the third position, there is only one tray on the first conveyor line 3.

[0044] The lever moves from the second position to the first position, and then from the first position to the third position, lifting all the trays except the bottom one to ensure they flow away one by one. Then, it moves from the third position to the first position and back to the second position, placing the stacked trays back onto the first conveyor line 3. Repeating this process transfers the trays one by one along the first conveyor line 3.

[0045] In this application, the dispensing device is used by placing the lever in the first position, inserting the lever into the tray within the tray limiting space, and then raising the mounting plate to lift the stacked trays, leaving only the bottom tray. The bottom tray that is not lifted is moved away with the first conveyor line, and then the lifted tray is lowered. Repeating the operation can transfer the stacked trays one by one to the conveyor line. This application does not require adding intermediate stations and directly transfers the stacked trays one by one to the conveyor line. The structure is simple and saves time and effort.

[0046] The present application will now be described through a specific embodiment.

[0047] The entire dispensing device is as follows: Figure 12 As shown, the packaging device of this application includes a gripping and stacking device. Figure 7 and Figure 8 The diagram shows the overall structure of the gripping and stacking device, which includes a second gripping device 7, a second conveyor line 5 disposed on one side of the second gripping device 7, a paper tube collecting mechanism 6, and a feeding mechanism 8 disposed on one side of the second gripping device 7.

[0048] The focus of this application is the design of a second gripping device 7, specifically, the second gripping device 7 as follows: Figure 10 and Figure 11 As shown, the second gripping device 7 includes a second robotic arm 71 and a second gripping mechanism 72. The second gripping mechanism 72 is connected to the end of the second robotic arm 71. The movement of the second robotic arm 71 can drive the movement of the second gripping mechanism 72 to assist in actions such as paper tube suction.

[0049] The second gripping mechanism 7 includes a mounting base plate 721, which is used to connect to the second robotic arm 71 and to mount suction cup mounting plates 724. There are three or five suction cup mounting plates 724, which are connected to guide rods 723 on the mounting base plate 721 via slide blocks. Figure 11 As shown, the guide rod 723 is positioned to the left and right, and the suction cup mounting plate 724 is arranged to the front and back. Multiple suction cup mounting plates 724 are connected to the guide rod 723 and can slide left and right along the guide rod 723.

[0050] Furthermore, to control the left and right movement of the suction cup mounting plate 724, a first screw mechanism 722 is also provided on the mounting base plate 721. The first screw mechanism 722 is connected to multiple sliders, each slider being connected to a suction cup mounting plate 724. Furthermore, the middle part of the screw is unthreaded, while the threads at both ends have opposite directions of rotation. There are three or five suction cup mounting plates 724, one of which is connected to the unthreaded part of the screw via a slider, and the other two suction cup mounting plates 724 are respectively connected to the screw at both ends.

[0051] During operation, rotating the screw causes the sliders on the screws with opposite threads at both ends to move simultaneously toward or away from the unthreaded part in the middle, thereby moving the suction cup mounting plate 724 toward or away from the middle part, thus adjusting the distance of the suction cup mounting plate 724.

[0052] In a further embodiment, a handwheel is provided at the end of the screw, which allows for easy adjustment of the spacing between the suction cup mounting plates 724 by rotating the handwheel.

[0053] like Figure 1-3 As shown, the second conveyor line 5 of this application is for transporting paper tubes, and the paper tube collection mechanism 6 can perform preliminary collection of paper tubes, providing convenience for paper tube gripping.

[0054] Specifically, the second conveyor line 5 includes a conveyor line 51 and a second cylinder 52. The conveyor line 51 is a conventional conveyor line used to convey paper tubes. Figure 9As shown, a second cylinder 52 is connected to the left side of the end of the conveyor line 51. A pusher plate is connected to the output end of the second cylinder 52 to push the paper tubes on the conveyor line 51 into the paper tube collecting mechanism 6. The paper tube collecting mechanism 6 includes a collecting base plate 61, on which three collecting side plates 62 are connected. The three collecting side plates 62 form a square frame structure with one open end. The open end of the square frame structure faces the second cylinder 52. When the second cylinder 52 operates, it pushes the paper tubes into the square frame structure.

[0055] Furthermore, the base plate 61 is not a monolithic plate structure, but a frame structure, i.e., as... Figure 9 As shown, it consists of multiple rods arranged in a left-right direction, with multiple rods arranged in parallel and a certain distance between adjacent rods. A push rod is set at the bottom of the collecting base plate 61. The push rod 61 can be raised and lowered and can move left and right. When the paper tube enters the square frame structure, in order to concentrate the paper tube to the right side of the square frame structure, the push rod 61 can be raised and moved to the right, thus concentrating the paper tube.

[0056] In a further embodiment, a feeding mechanism 8 is also provided on one side of the second gripping device 7. The feeding mechanism 8 includes a support frame 81, on which two symmetrical side baffles 82 are provided, forming a receiving space for accommodating paper tubes between the two side baffles 82. The paper tubes picked up by the second gripping device 7 can be placed into the receiving space, which can be a square space or a conical space, the shape of which is set according to the shape of the paper tubes being stacked and bundled.

[0057] A second screw mechanism 84 is also designed on one side of the support frame 81. The second screw mechanism 84 includes a rotatable screw, a housing for mounting the screw, a motor for driving the screw to rotate, and a slider threadedly connected to the screw. A push plate 83 is connected to the slider. Figure 10 As shown, the push plate 83 is connected by an L-shaped connecting rod so that the push plate 83 is located in the receiving space. During operation, the motor drives the screw to rotate, which enables the push plate 83 to move in the receiving space. When a paper tube is placed in the receiving space, the push plate 83 can push the paper tube from the left to the right. A binding mechanism is also designed on the right side to bind the paper tube. This binding mechanism is prior art and will not be described further in this application.

[0058] The bundled paper tubes are indexed, and the indexing device of this application is as follows: Figure 5 and Figure 6 As shown, the indexing device 2 includes an installation frame 21 disposed above the first conveyor line 3. The installation frame 21 can be disposed above the starting end of the first conveyor line 3 by means of a bracket. The front end of the installation frame 21 is connected to symmetrical limiting baffles 22, and a pallet limiting space for placing pallets is formed between the symmetrical limiting baffles 22.

[0059] Specifically, the limiting baffle 22 has an L-shaped cross-section, and two L-shaped limiting baffles 22 are symmetrically arranged to form a square limiting space to restrict the two corners of the square pallet. Since the pallets of this application are used to transfer stacked paper tubes of the same length, the pallets of this application are mostly square. However, the limiting baffle 22 of this application can be modified to accommodate pallets of other shapes. For example, the limiting baffle 22 can have an arc-shaped cross-section, and two arc-shaped limiting baffles 22 can be symmetrically arranged to form a circular limiting space to restrict circular pallets.

[0060] An installation plate 25 is vertically connected within the mounting frame 21. Two levers 23 are symmetrically arranged on the mounting plate 25, and the levers 23 and the mounting plate 25 are rotatably connected. A paddle 24 is connected to the lever 23. The paddle 24 has at least a first position and a second position. In the first position, the paddle 24 on the two levers 23 is located within the tray limiting space. In the second position, the paddle 24 on the two levers 23 is located outside the tray limiting space.

[0061] Furthermore, the lever 23 is L-shaped, with one end rotatably connected to the mounting plate 25 and the other end extending to the side of the front end of the limiting baffle 22, where it is connected to the L-shaped paddle 24. This ensures that when the lever 23 rotates, the paddle 24 can be inserted into the tray limiting space.

[0062] To ensure the effectiveness of the lever 23 in supporting the stacked trays, at least two levers 23 are connected to each lever 23 to ensure the stability of supporting the stacked trays.

[0063] In a further embodiment, the rotation of the lever 23 is achieved by an electric push rod 26. Specifically, the electric push rod 26 is mounted on a mounting plate, and its output end is hinged to the lever 23. When the electric push rod 26 extends or retracts, it can drive the lever 23 to rotate.

[0064] In one embodiment, such as Figure 5 and Figure 6 As shown, the lifting and lowering of the mounting plate 25 is achieved via a liftable chain. Specifically, a rotating rod 212 is rotatably connected to the top of the mounting frame 21, and the rotating rod 212 can be driven to rotate by a stepper motor. Connecting rods 211 are connected to the left and right ends of the rotating rod 212. The rotation of the rotating rod 212 causes the connecting rods to rotate around the rotating rod 212, that is, the end of the connecting rod 211 changes position in the height direction. The connecting rod 211 is connected to the mounting plate 25 via a chain 210; the rotation of the rotating rod 212 causes the mounting plate 25 to rise and fall.

[0065] To ensure that the mounting plate 25 does not shift position during lifting and lowering, i.e., does not wobble or move forward, backward, left, or right, connecting side plates 27 are attached to both ends of the mounting plate 25. Positioning guide rods 29, arranged vertically, are fixed to both sides inside the mounting frame 21. Two, four, or six guide wheels 28, which are roll-connected to the positioning guide rods 29, are connected to the connecting side plates 27. These guide wheels are located on both sides of the positioning guide rods 29. By limiting the movement of the guide wheels on both sides of the positioning guide rods 29, the mounting plate 25 can only move in the direction of the positioning guide rods 29, i.e., it can only lift up and down, ensuring the stability of the mounting plate 25 during lifting and lowering.

[0066] The packaging device also includes a first gripping device 1, which is used to grip and transfer the bundled paper tubes to a tray on the first conveyor line 3. The first gripping device 1 includes a first robotic arm 11 and a first gripping mechanism 12 connected to the end of the first robotic arm 11; the first gripping mechanism 12 includes a connecting frame 121, on which two positioning gripping devices are movably connected, and each positioning gripping device includes multiple positioning blocks 125.

[0067] In use, the two positioning gripping devices are close together, and the positioning block in the positioning gripping device is inserted into the hollow part of the paper tube end to grip the paper tube after binding. After the bound paper tube is transferred to the first conveyor line 3, the two positioning gripping devices are moved away from each other so that the paper tube can be placed on the tray.

[0068] This application utilizes the approach and movement of the positioning gripping device to grasp paper tubes of different lengths, adapting to the gripping of paper tubes of different sizes. By inserting positioning blocks into the paper tubes, the gripping of the paper tubes is secured, ensuring stable and firm gripping and preventing the paper tubes from falling off during transfer.

[0069] In one embodiment, the movement of the positioning gripping device is achieved through a belt mechanism 123. Specifically, two guide rods 122 are connected inside the connecting frame 121, and the positioning gripping device is slidably connected to the guide rods 122. The belt mechanism 123 is also connected in the middle of the connecting frame 121. The belt in the belt mechanism 123 is connected to one of the positioning gripping devices through a connecting block. The belt is connected to a pulley and a motor. The motor works to drive the belt to move, thereby realizing the movement of the positioning gripping device at one end. The positioning gripping device at the moving end moves closer to or further away from the positioning gripping device at the fixed end to realize the gripping or releasing of the paper tube.

[0070] In some other embodiments, the movement of the positioning gripping device is achieved through a screw mechanism, on which two threads with opposite directions can be designed so that the two positioning gripping devices move toward each other or move away from each other.

[0071] A turntable mechanism 4 is also designed at the end of the first conveyor line 3. The turntable mechanism 4 has a rotatable disc that can adjust the direction of the tray on the first conveyor line 3. The turntable mechanism 4 is prior art and will not be described further in this application.

[0072] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A paper tube dispensing device, characterized in that, The system includes an indexing device (2), which includes an installation frame (21) disposed above the first conveyor line (3). The front end of the installation frame (21) is connected to symmetrical limiting baffles (22). The symmetrical limiting baffles (22) form a pallet limiting space for placing a pallet. The limiting baffles (22) have an L-shaped cross-section. The two L-shaped limiting baffles (22) are symmetrically arranged. The two symmetrical limiting baffles (22) are used to limit the two corners of the square pallet. The mounting frame (21) is connected to a mounting plate (25) that can be raised and lowered. Two levers (23) are symmetrically provided on the mounting plate (25), and the levers (23) and the mounting plate (25) are rotatably connected. A paddle (24) is connected to the levers (23). The paddle (24) has at least a first position and a second position. In the first position, the paddle (24) on the two levers (23) is located within the tray limiting space. In the second position, the paddle (24) on the two levers (23) is located outside the tray limiting space. The paper tube dispensing device further includes a first gripping device (1) and a second gripping device (7). The first gripping device (1) includes a first robotic arm (11) and a first gripping mechanism (12) connected to the end of the first robotic arm (11). The first gripping mechanism (12) includes a connecting frame (121), on which two positioning gripping devices are movably connected, and each positioning gripping device includes multiple positioning blocks (125). The connecting frame (121) is also connected to a belt mechanism (123). The belt in the belt mechanism (123) is connected to the positioning gripping device through a connecting block so as to drive the positioning gripping device to move. The second gripping device (7) includes a second gripping mechanism (72), which includes a mounting base plate (721) and a plurality of parallel guide rods (723) on the mounting base plate (721). Multiple suction cup mounting plates (724) are slidably connected to the guide rod (723), and each suction cup mounting plate (724) is connected to a suction cup (725). The mounting base plate (721) is also provided with a first screw mechanism (722). The screw of the first screw mechanism (722) is connected to a plurality of sliders, each slider being connected to a suction cup mounting plate (724). The screw rotates to adjust the distance between the suction cup mounting plates (724). The screw in the first screw mechanism (722) has no thread in the middle part and the threads at both ends have opposite directions of rotation; there are at least three suction cup mounting plates (724), one of which is connected to the unthreaded part of the screw, and the other two are connected to the screw at both ends respectively.

2. The paper tube dispensing device according to claim 1, characterized in that, An electric push rod (26) is connected to the mounting plate (25). The output end of the electric push rod (26) is connected to the lever (23) to drive the lever (23) to rotate.

3. The paper tube dispensing device according to claim 1, characterized in that, The top of the mounting frame (21) is rotatably connected to a rotating rod (212), and the two ends of the rotating rod (212) are connected to connecting rods (211). The connecting rods (211) are connected to the mounting plate (25) via a chain (210). The rotating rod (212) rotates to drive the mounting plate (25) to rise and fall.

4. The paper tube dispensing device according to claim 1, characterized in that, The mounting plate (25) is also connected to the two end faces of the mounting plate (27). The mounting frame (21) is fixed with positioning guide rods (29) on both sides. The connecting side plate (27) is connected with multiple guide wheels (28) that are tactilely connected to the positioning guide rods (29), and the multiple guide wheels are respectively located on both sides of the positioning guide rods (29).

5. The paper tube dispensing device according to claim 1, characterized in that, The connecting frame (121) is connected to a plurality of guide rods (122), and the positioning gripping device is slidably connected to the guide rods (122).

6. The paper tube dispensing device according to claim 1, characterized in that, A handwheel is provided at the end of the screw.

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