Pipe feeding device of binding machine

Abstract

The utility model discloses a pipe feeding device of a binding machine, the pipe feeding device comprises a rack, the rack is provided with a first guide pipe used for placing a riveting pipe, the first guide pipe is connected with a first pipe detection assembly, a second pipe detection assembly and a control switch, the first tube detection assembly and the second tube detection assembly are sequentially distributed in the length direction of the first catheter and are both electrically connected with the control switch, and the control switch opens and closes the first catheter according to detection signals of the first tube detection assembly and the second tube detection assembly. The first guide pipe is divided into a first pipe section and a second pipe section through the control switch, and the control switch is turned on and off to enable the riveting pipe in the second pipe section to enter the first pipe section or prevent the riveting pipe in the second pipe section from entering the first pipe section, so that splicing of the front riveting pipe and the rear riveting pipe is avoided, and riveting efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of office equipment, and more specifically to a tube feeding device of a binding machine. Background Art

[0002] A binding machine is a device for binding paper documents, bills, vouchers, etc. Generally, a binding machine includes a punching mechanism and a riveting mechanism. The punching mechanism is lifted to drill holes in the object to be bound. The punching mechanism drills a circular binding hole at the edge of the object to be bound through a drill bit. The riveting mechanism can insert a rivet tube into the above binding hole and hot-press and rivet the upper and lower ends of the rivet tube into a rivet tube head to achieve rivet tube binding. Therefore, with the use of the binding machine, the remaining amount of the rivet tube in the binding machine gradually decreases, and the total length of the rivet tube gradually decreases. When the remaining length of the rivet tube is not enough to meet the thickness of the object to be bound, that is, after drilling the object to be bound, the remaining rivet tube cannot complete the binding task, affecting normal binding and even causing waste of the object to be bound or the rivet tube. To solve the foregoing problems, for example, the utility model patent with the publication number: CN207028584U discloses a tube feeding structure of a binding machine, including a tube feeding channel on a machine base. The tube feeding channel is provided with a main tube feeding device, wherein: the main tube feeding device includes a motor, a tube feeding wheel and a tube pressing wheel. The tube pressing wheel and the tube feeding wheel are arranged oppositely and are respectively positioned on both sides of the tube feeding channel. The output shaft of the motor is connected to the tube feeding wheel; a tube length detection device is arranged along the tube feeding channel. The tube length detection device includes a light emitting array and a light receiving array arranged correspondingly; in this technical solution, by arranging the light emitting array and the light receiving array correspondingly along the tube feeding channel, when the light emitted by the light emitting array passes through the tube feeding channel and is received by the light receiving array, it means that there is no hot rivet tube in the tube feeding channel. When the light receiving array cannot receive the light emitted by the light emitting array, it means that the light is blocked by the hot rivet tube in the tube feeding channel. According to the position of the light receiving array that receives the light, the length of the hot rivet tube in the tube feeding channel is calculated. When the length of the hot rivet tube is less than the length of the hot rivet tube required for the binding material, the hot rivet tube is pushed out, thereby avoiding waste of the object to be bound or the rivet tube. However, this technical solution can only solve the situation where only one rivet tube is stored in the binding machine. In the process of use by some users, a new rivet tube is put in when the previous rivet tube is not completely used up. Two rivet tubes exist in the binding machine at the same time, and the two rivet tubes are spliced end to end. Even if the remaining amount of the first inserted rivet tube is insufficient, it is difficult to be measured, so that after the front and rear rivet tubes are spliced, the object to be bound is riveted. The riveting reliability of the spliced tube is relatively low, and phenomena such as falling off are likely to occur. There may also be a situation where only the rivet tube with insufficient remaining amount is used for binding, resulting in the object to be bound being riveted halfway and unable to be completed, etc. Summary of the Invention

[0003] The technical problem to be solved by this application is to provide a tube feeding device for a binding machine. The tube feeding device detects whether there is a riveting tube in the first conduit through the first tube inspection assembly and the second tube inspection assembly. When the first tube inspection assembly detects the riveting tube while the second tube inspection assembly does not detect it, the control switch closes the first conduit to block the riveting tube from entering the first tube section through the second tube section, thereby avoiding the splicing of front and rear riveting tubes and improving the riveting efficiency.

[0004] This application provides a tube feeding device for a binding machine, including a frame. A first conduit for placing riveting tubes is installed on the frame. The first conduit is connected with a first tube inspection assembly, a second tube inspection assembly and a control switch. The first tube inspection assembly and the second tube inspection assembly are sequentially distributed along the length direction of the first conduit. The first tube inspection assembly and the second tube inspection assembly are both electrically connected to the control switch. The control switch opens and closes the first conduit according to the detection signals of the first tube inspection assembly and the second tube inspection assembly. The first conduit is divided into a first tube section and a second tube section by the control switch. The control switch opens and closes to enable the riveting tube in the second tube section to enter the first tube section or block the riveting tube in the second tube section from entering the first tube section.

[0005] In this technical solution, the riveting tube is inserted into the first conduit and conveyed to the riveting mechanism through the first conduit. By providing a control switch connected to the first conduit, the control switch divides the first conduit into a first pipe section and a second pipe section. The control switch can, through opening and closing, enable the riveting tube in the second pipe section to enter the first pipe section or block the riveting tube in the second pipe section from entering the first pipe section. By providing that both the first tube inspection component and the second tube inspection component are connected to the first conduit, the first tube inspection component is used to detect whether there is a riveting tube in the first pipe section, and the second tube inspection component is used to detect whether there is a riveting tube in the second pipe section. It is provided that both the first tube inspection component and the second tube inspection component are electrically connected to the control switch, and the control switch can open and close according to the detection signals of the first tube inspection component and the second tube inspection component. When the riveting tube enters the first conduit, the control switch is in the open state, and the riveting tube can, under the action of gravity, pass through the second pipe section and enter the first pipe section. At this time, both the first tube inspection component and the second tube inspection component can detect the riveting tube, and the control switch remains in the open state according to the detection signal. When the riveting tube leaves the second pipe section to completely enter the first pipe section, the first tube inspection component can detect the riveting tube, while the second tube inspection component cannot detect the riveting tube. At this time, the control switch changes from the open state to the closed state according to the detection signal. At this time, the newly placed riveting tube will also be blocked by the control switch and stay in the second pipe section to prevent the newly placed riveting tube from entering the first pipe section and splicing with the riveting tube in the first pipe section. When the riveting tube in the first pipe section completely leaves the first pipe section, the first tube inspection component cannot detect the riveting tube, and the second tube inspection component detects the riveting tube. At this time, the control switch changes from the closed state to the open state, so that the newly placed riveting tube in the second pipe section can, under the action of gravity, enter the first pipe section. Through the cooperation of the first tube inspection component, the second tube inspection component and the control switch, the splicing of the front and rear riveting tubes is avoided, thereby improving the riveting efficiency and reliability. In this solution, the open state means that the control switch makes the first pipe section and the second pipe section in a communicating state, and the closed state means that the control switch makes the first pipe section and the second pipe section in a separated state.

[0006] As an improvement, the control switch is a telescopic switch. There is a first opening on the first conduit for the control switch to telescopically move. The control switch extends into the first opening to block the riveting tube in the second pipe section from entering the first pipe section, and the control switch retracts out of the first opening to enable the riveting tube in the second pipe section to enter the first pipe section. In this technical solution, the control switch is set as a telescopic switch. When the control switch is in the open state, it retracts from the first opening to enable the first pipe section and the second pipe section to communicate, and the riveting tube in the second pipe section can, under the action of gravity, enter the first pipe section. When the control switch is in the closed state, it extends into the first opening to separate the first pipe section and the second pipe section, and the riveting tube in the second pipe section is blocked by the control switch and cannot enter the first pipe section. The telescopic switch has a simple and reliable structure.

[0007] As an improvement, the control switch is an electro-magnetostrictive valve, and the control switch realizes expansion and contraction by being powered on and off. In this technical solution, the control switch is set as an electro-magnetostrictive valve, and the control switch is powered on and off according to the detection signal to realize the switching between the open state and the closed state. There are two specific control methods for the power on and off in this solution. One is that the control switch is in the open state when powered on, that is, the control switch retracts to connect the first pipe section and the second pipe section, and the rivet pipe in the second pipe section can enter the first pipe section. The control switch is in the closed state when powered off, that is, the control switch extends to separate the first pipe section and the second pipe section, and the rivet pipe in the second pipe section is blocked by the control switch and cannot enter the first pipe section. The other is that the control switch is in the closed state when powered on, that is, the control switch extends to separate the first pipe section and the second pipe section, and the rivet pipe in the second pipe section is blocked by the control switch and cannot enter the first pipe section. The control switch is in the open state when powered off, that is, the control switch retracts to connect the first pipe section and the second pipe section, and the rivet pipe in the second pipe section can enter the first pipe section. It meets more production and use requirements and improves the intelligent level of the pipe feeding device.

[0008] As an improvement, a first mounting seat is installed on the first conduit, and the first pipe inspection assembly is installed on the first mounting seat and connected to the first conduit. In this technical solution, by installing the first mounting seat on the first conduit, the first mounting seat is used to install the first pipe inspection assembly, and the first pipe inspection assembly is connected to the first conduit through the first mounting seat, improving the installation reliability of the first pipe inspection assembly.

[0009] As an improvement, the first mounting seat is connected with a second mounting seat. The second mounting seat is located above the first mounting seat, and the second pipe inspection assembly is installed on the second mounting seat and connected to the first conduit. In this technical solution, the second mounting seat is connected to the first mounting seat. The second mounting seat is used to install the second pipe inspection assembly, and the second pipe inspection assembly is connected to the first conduit through the second mounting seat, improving the installation reliability of the second pipe inspection assembly. And the second mounting seat is set to be installed above the first mounting seat, that is, the second pipe inspection assembly is installed above the first pipe inspection assembly. The first pipe inspection assembly detects the rivet pipe in the first pipe section, and the second pipe inspection assembly detects the rivet pipe in the second pipe section, without interference with each other, improving the detection reliability.

[0010] As an improvement, a second opening for the first conduit to pass through is provided on the second mounting seat, and the first conduit passes through the second opening to connect the first mounting seat. In this technical solution, by installing the second mounting seat above the first mounting seat and providing the second opening on the second mounting seat for the first conduit to pass through, the first conduit can pass through the second opening to connect the first mounting seat, and the overall structure distribution is more reasonable and reliable.

[0011] As an improvement, the control switch is installed on the second mounting seat. In this technical solution, the control switch is installed on the second mounting seat, and the control switch can stretch on the second mounting seat to enter or disengage from the first opening, and the installation of the control switch is simpler and more reliable.

[0012] As an improvement, the second pipe inspection component is a photoelectric detector. In this technical solution, a photoelectric detector is selected as the second pipe inspection component, and the photoelectric detector is used to detect whether there is a riveting pipe in the second pipe section. The photoelectric detector has the advantages of small volume, long detection distance, strong anti-light, electromagnetic interference ability, etc.

[0013] As an improvement, the second pipe inspection component is installed near the first opening, and the second pipe inspection component irradiates the first opening to detect whether there is a riveting pipe in the second pipe section. In this technical solution, the second pipe inspection component is installed on the second mounting seat, the second pipe inspection component is arranged near the first opening, the second pipe inspection component is a photoelectric detector, and the second pipe inspection component can directly detect whether there is a riveting pipe in the second pipe section by irradiating the first opening, and the detection is more accurate and reliable.

[0014] As an improvement, a motor and a pipe feeding wheel are installed on the frame, the pipe feeding wheel is connected to the conduit, and the motor drives the pipe feeding wheel to rotate to convey the riveting pipe in the first conduit. In this technical solution, the motor and the pipe feeding wheel are installed on the frame, the riveting pipe is placed in the first conduit, the output shaft of the motor is connected to the pipe feeding wheel to drive the pipe feeding wheel to rotate, and the pipe feeding wheel conveys the riveting pipe in the first conduit by rotation, so as to achieve the purpose of pipe feeding and improve the pipe feeding efficiency.

[0015] In this application, the tube feeding device detects whether there is a riveting tube in the first tube section through the first tube inspection component, and detects whether there is a riveting tube in the second tube section through the second tube inspection component. The first tube inspection component and the second tube inspection component are both electrically connected to the control switch. The control switch can be opened and closed according to the detection signals of the first tube inspection component and the second tube inspection component. When the riveting tube enters the first conduit, the control switch is in the open state. The riveting tube can pass through the second tube section and enter the first tube section under the action of gravity. At this time, both the first tube inspection component and the second tube inspection component can detect the riveting tube, and the control switch remains in the open state according to the detection signal. When the riveting tube disengages from the second tube section and completely enters the first tube section, the first tube inspection component can detect the riveting tube, while the second tube inspection component cannot detect the riveting tube. At this time, the control switch changes from the open state to the closed state according to the detection signal. At this time, a new riveting tube placed will also be blocked by the control switch and stay in the second tube section to prevent the new riveting tube from entering the first tube section and splicing with the riveting tube in the first tube section. When the riveting tube in the first tube section completely disengages from the first tube section, the first tube inspection component cannot detect the riveting tube, and the second tube inspection component detects the riveting tube. At this time, the control switch changes from the closed state to the open state, so that the new riveting tube in the second tube section can enter the first tube section under the action of gravity. By the cooperation of the first tube inspection component, the second tube inspection component and the control switch, the splicing of the front and rear riveting tubes is avoided, thereby improving the riveting efficiency and reliability. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the tube feeding device of a binding machine according to this application.

[0017] Figure 2 For this application Figure 1 The partial enlarged schematic diagram at position A.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the first conduit and the control switch in this application.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the tube feeding device of a binding machine according to this application from another angle.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the second tube inspection component, the control switch and the second mounting seat in this application.

[0021] As shown in the figure: 1. Frame; 2. First conduit; 21. First tube section; 22. Second tube section; 23. First opening; 3. First tube inspection component; 4. Second tube inspection component; 5. Control switch; 51. Valve rod; 6. First mounting seat; 7. Second mounting seat; 71. Second opening; 8. Motor; 9. Tube feeding wheel. Detailed Embodiments

[0022] To better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application and do not limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0023] In the drawings, for the sake of clarity, the thickness, dimensions, and shape of the objects have been slightly exaggerated. The drawings are only examples and are not drawn to strict scale.

[0024] It should also be understood that the terms "comprise", "include", "have", "contain", "include with", when used in this specification, denote the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof. The terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and do not indicate or imply the relative importance and quantity of the indicated devices, elements, or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In addition, it should be noted that the terms "mount", "set", "provided with", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements, or components; it may be directly provided on another component or there may be another intermediate component present at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] Such as Figures 1 to 5As shown in the figure, the present application discloses a tube feeding device for a binding machine, which includes a frame 1. A first conduit 2 for placing riveting tubes is installed on the frame 1. The first conduit 2 is connected to a first tube inspection component 3, a second tube inspection component 4, and a control switch 5. The first tube inspection component 3 and the second tube inspection component 4 are sequentially distributed along the length direction of the first conduit 2. Both the first tube inspection component 3 and the second tube inspection component 4 are electrically connected to the control switch 5. The control switch 5 opens and closes the first conduit 2 according to the detection signals of the first tube inspection component 3 and the second tube inspection component 4. The first conduit 2 is divided into a first tube section 21 and a second tube section 22 by the control switch 5. The control switch 5 opens and closes to enable the riveting tubes in the second tube section 22 to enter the first tube section 21 or block the riveting tubes in the second tube section 22 from entering the first tube section 21. The riveting tubes are loaded into the first conduit 2 and transported to the riveting mechanism through the first conduit 2. By providing the control switch 5 connected to the first conduit 2, the control switch 5 divides the first conduit 2 into the first tube section 21 and the second tube section 22. The control switch 5 can open and close to enable the riveting tubes in the second tube section 22 to enter the first tube section 21 or block the riveting tubes in the second tube section 22 from entering the first tube section 21. By providing that both the first tube inspection component 3 and the second tube inspection component 4 are connected to the first conduit 2, the first tube inspection component 3 detects whether there are riveting tubes in the first tube section 21, and the second tube inspection component 4 detects whether there are riveting tubes in the second tube section 22. It is provided that both the first tube inspection component 3 and the second tube inspection component 4 are electrically connected to the control switch 5, and the control switch 5 can open and close according to the detection signals of the first tube inspection component 3 and the second tube inspection component 4;

[0027] When the riveting tube enters the first conduit 2, the control switch 5 is in the open state. Under the action of gravity, the riveting tube can pass through the second pipe section 22 and enter the first pipe section 21. At this time, both the first pipe inspection component 3 and the second pipe inspection component 4 can detect the riveting tube, and the control switch 5 remains in the open state according to the detection signal. When the riveting tube disengages from the second pipe section 22 and completely enters the first pipe section 21, the first pipe inspection component 3 can detect the riveting tube, while the second pipe inspection component 4 cannot detect the riveting tube. At this time, the control switch 5 changes from the open state to the closed state according to the detection signal. At this time, a newly placed riveting tube will also be blocked by the control switch 5 and stay in the second pipe section 22 to prevent the newly placed riveting tube from entering the first pipe section 21 and splicing with the riveting tube in the first pipe section 21. When the riveting tube in the first pipe section 21 completely disengages from the first pipe section 21, the first pipe inspection component 3 cannot detect the riveting tube, and the second pipe inspection component 4 detects the riveting tube. At this time, the control switch 5 changes from the closed state to the open state according to the detection signal, so that the newly placed riveting tube in the second pipe section 22 can enter the first pipe section 21 under the action of gravity. By the cooperation of the first pipe inspection component 3, the second pipe inspection component 4 and the control switch 5, the splicing of the front and rear riveting tubes is avoided, thereby improving the riveting efficiency and reliability. In this solution, the open state means that the control switch 5 makes the first pipe section 21 and the second pipe section 22 in a communicating state, and the closed state means that the control switch 5 makes the first pipe section 21 and the second pipe section 22 in a separated state.

[0028] More specifically, as Figure 2 and Figure 3 shown, the control switch 5 is a telescopic switch. The first conduit 2 is provided with a first opening 23 for the control switch 5 to telescope. The control switch 5 extends into the first opening 23 to block the riveting tube in the second pipe section 22 from entering the first pipe section 21. The control switch 5 retracts out of the first opening 23 to enable the riveting tube in the second pipe section 22 to enter the first pipe section 21. By setting the control switch 5 as a telescopic switch, when the control switch 5 is in the open state, it retracts from the first opening 23 to connect the first pipe section 21 and the second pipe section 22, and the riveting tube in the second pipe section 22 can enter the first pipe section 21 under the action of gravity. When the control switch 5 is in the closed state, it extends into the first opening 23 to separate the first pipe section 21 and the second pipe section 22, and the riveting tube in the second pipe section 22 is blocked by the control switch 5 and cannot enter the first pipe section 21. The telescopic switch has a simple and reliable structure.

[0029] More specifically, as Figure 2 and Figure 3As shown, the control switch 5 is an electro-magnetostrictive valve. The control switch 5 realizes expansion and contraction by being powered on and off. The electro-magnetostrictive valve is provided with a valve stem 51. The valve stem 51 expands and contracts to enter or separate from the first opening 23. The control switch 5 is set as an electro-magnetostrictive valve, and the control switch 5 is powered on and off according to the detection signal to realize the switching between the open state and the closed state. There are two specific control methods for power on and off in this solution. One is that the control switch 5 is in the open state through power on, that is, the control switch 5 retracts the valve stem 51 to connect the first pipe section 21 and the second pipe section 22, and the riveting pipe in the second pipe section 22 can enter the first pipe section 21. The control switch 5 is in the closed state through power off, that is, the control switch 5 extends the valve stem 51 to separate the first pipe section 21 and the second pipe section 22, and the riveting pipe in the second pipe section 22 is blocked by the valve stem 51 and cannot enter the first pipe section 21. The other is that the control switch 5 is in the closed state through power on, that is, the control switch 5 extends to separate the first pipe section 21 and the second pipe section 22, and the riveting pipe in the second pipe section 22 is blocked by the valve stem 51 and cannot enter the first pipe section 21. The control switch 5 is in the open state through power off, that is, the control switch 5 retracts the valve stem 51 to connect the first pipe section 21 and the second pipe section 22, and the riveting pipe in the second pipe section 22 can enter the first pipe section 21, meeting more production and use requirements and improving the intelligence level of the pipe feeding device.

[0030] More specifically, as Figure 1 and Figure 4 shown, a first mounting seat 6 is installed on the first conduit 2. The first pipe inspection assembly 3 is installed on the first mounting seat 6 and connected to the first conduit 2. By installing the first mounting seat 6 on the first conduit 2, the first mounting seat 6 is used to install the first pipe inspection assembly 3, and the first pipe inspection assembly 3 is connected to the first conduit 2 through the first mounting seat 6, improving the installation reliability of the first pipe inspection assembly 3.

[0031] More specifically, as Figure 1 and Figure 4 shown, the first mounting seat 6 is connected to a second mounting seat 7. The second mounting seat 7 is located above the first mounting seat 6. The second pipe inspection assembly 4 is installed on the second mounting seat 7 and connected to the first conduit 2. The second mounting seat 7 is connected to the first mounting seat 6. The second mounting seat 7 is used to install the second pipe inspection assembly 4, and the second pipe inspection assembly 4 is connected to the first conduit 2 through the second mounting seat 7, improving the installation reliability of the second pipe inspection assembly 4. And the second mounting seat 7 is set to be installed above the first mounting seat 6, that is, the second pipe inspection assembly 4 is installed above the first pipe inspection assembly 3. The first pipe inspection assembly 3 detects the riveting pipe in the first pipe section 21, and the second pipe inspection assembly 4 detects the riveting pipe in the second pipe section 22, without interference, improving the detection reliability.

[0032] More specifically, as Figure 2 and Figure 5As shown, a second opening 71 for the first conduit 2 to pass through is provided on the second mounting seat 7. The first conduit 2 passes through the second opening 71 to connect to the first mounting seat 6. By mounting the second mounting seat 7 above the first mounting seat 6 and providing the second opening 71 on the second mounting seat 7 for the first conduit 2 to pass through, the first conduit 2 can pass through the second opening 71 to connect to the first mounting seat 6, making the overall structure distribution more reasonable and reliable.

[0033] More specifically, as Figure 2 and Figure 5 shown, the control switch 5 is mounted on the second mounting seat 7. By mounting the control switch 5 on the second mounting seat 7, the control switch 5 can expand and contract on the second mounting seat 7 to enter or disengage from the first opening 23, and the installation of the control switch 5 is simpler and more reliable.

[0034] More specifically, as shown in 2 and Figure 5 shown, the second pipe inspection component 4 is a photoelectric detector. Selecting a photoelectric detector as the second pipe inspection component 4, the photoelectric detector is used to detect whether there is a riveting pipe in the second pipe section 22. The photoelectric detector has the advantages of small volume, long detection distance, strong anti-light, electromagnetic interference ability, etc.

[0035] More specifically, as shown in 2 and Figure 5 shown, the second pipe inspection component 4 is installed near the first opening 23. The second pipe inspection component 4 irradiates the first opening 23 to detect whether there is a riveting pipe in the second pipe section 22. The second pipe inspection component 4 is mounted on the second mounting seat 7. By setting the second pipe inspection component 4 near the first opening 23, and the second pipe inspection component 4 being a photoelectric detector, the second pipe inspection component 4 can directly detect whether there is a riveting pipe in the second pipe section 22 by irradiating the first opening 23, and the detection is more accurate and reliable.

[0036] More specifically, as Figure 1 and Figure 4 shown, a motor 8 and a pipe feeding wheel 9 are mounted on the frame 1. The pipe feeding wheel 9 is connected to the conduit. The motor 8 drives the pipe feeding wheel 9 to rotate to convey the riveting pipe in the first conduit 2. By mounting the motor 8 and the pipe feeding wheel 9 on the frame 1, putting the riveting pipe into the first conduit 2, connecting the output shaft of the motor 8 to the pipe feeding wheel 9 to drive the pipe feeding wheel 9 to rotate, and the pipe feeding wheel 9 rotates to convey the riveting pipe in the first conduit 2, the purpose of pipe feeding is achieved, and the pipe feeding efficiency is improved.

[0037] The tube feeding device detects whether there is a riveting tube in the first tube section 21 through the first tube detection assembly 3, and detects whether there is a riveting tube in the second tube section 22 through the second tube detection assembly 4. The first tube detection assembly 3 and the second tube detection assembly 4 are both electrically connected to the control switch 5. The control switch 5 can be opened and closed according to the detection signals of the first tube detection assembly 3 and the second tube detection assembly 4. When the riveting tube enters the first conduit 2, the control switch 5 is in the open state. Under the action of gravity, the riveting tube can pass through the second tube section 22 and enter the first tube section 21. At this time, both the first tube detection assembly 3 and the second tube detection assembly 4 can detect the riveting tube, and the control switch 5 remains in the open state according to the detection signal. When the riveting tube detaches from the second tube section 22 and completely enters the first tube section 21, the first tube detection assembly 3 can detect the riveting tube, while the second tube detection assembly 4 cannot detect the riveting tube. At this time, the control switch 5 changes from the open state to the closed state according to the detection signal. At this time, the newly placed riveting tube will also be blocked by the control switch 5 and stay in the second tube section 22 to prevent the newly placed riveting tube from entering the first tube section 21 and splicing with the riveting tube in the first tube section 21. When the riveting tube in the first tube section 21 completely detaches from the first tube section 21, the first tube detection assembly 3 cannot detect the riveting tube, and the second tube detection assembly 4 detects the riveting tube. At this time, the control switch 5 changes from the closed state to the open state, so that the newly placed riveting tube in the second tube section 22 can enter the first tube section 21 under the action of gravity. By the cooperation of the first tube detection assembly 3, the second tube detection assembly 4 and the control switch 5, the splicing of the front and rear riveting tubes is avoided, thereby improving the riveting efficiency and reliability.

[0038] This application is not limited to the above best implementation mode. Anyone can obtain other various forms of products under the inspiration of this application. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as this application, they all fall within the protection scope of this application.

Claims

1. A tube feeding device for a binding machine, comprising a frame (1), on which a first guide tube (2) for placing a riveted tube is mounted, characterized in that: The first conduit (2) is connected to a first pipe inspection component (3), a second pipe inspection component (4) and a control switch (5). The first pipe inspection component (3) and the second pipe inspection component (4) are sequentially distributed along the length direction of the first conduit (2). The first pipe inspection component (3) and the second pipe inspection component (4) are both electrically connected to the control switch (5). The control switch (5) opens and closes the first conduit (2) according to detection signals of the first pipe inspection component (3) and the second pipe inspection component (4). The first conduit (2) is divided into a first pipe section (21) and a second pipe section (22) by the control switch (5). The control switch (5) enables the riveted pipe in the second pipe section (22) to enter the first pipe section (21) or blocks the riveted pipe in the second pipe section (22) from entering the first pipe section (21) by opening and closing.

2. A tube feeding device for a binding machine according to claim 1, characterized in that: The control switch (5) is a telescopic switch. The first conduit (2) is provided with a first opening (23) for the control switch (5) to be telescopic. The control switch (5) is extended into the first opening (23) to prevent the rivet tube in the second tube section (22) from entering the first tube section (21). The control switch (5) is retracted out of the first opening (23) to allow the rivet tube in the second tube section (22) to enter the first tube section (21).

3. A tube feeding device for a binding machine according to claim 1 or 2, characterized in that: The control switch (5) is an electromagnetic telescopic valve, and the control switch (5) is electrically connected and disconnected to achieve telescopic movement.

4. A tube feeding device for a binding machine according to claim 2, characterized in that: The first conduit (2) is provided with a first mounting seat (6), and the first tube inspection component (3) is mounted on the first mounting seat (6) and connected to the first conduit (2).

5. A tube feeding device for a binding machine according to claim 4, characterized in that: The first mounting seat (6) is connected to a second mounting seat (7), the second mounting seat (7) is located above the first mounting seat (6), and the second tube inspection assembly (4) is installed on the second mounting seat (7) and connected to the first conduit (2).

6. A tube feeding device for a binding machine according to claim 5, characterized in that: The second mounting seat (7) is provided with a second opening (71) for the first conduit (2) to pass through, and the first conduit (2) passes through the second opening (71) to connect to the first mounting seat (6).

7. The tube feeding device of a binding machine according to claim 5, characterized in that: The control switch (5) is mounted on the second mounting seat (7).

8. The tube feeding device of a binding machine according to claim 2, characterized in that: The second tube detection component (4) is a photoelectric detector.

9. A tube feeding device for a binding machine according to claim 8, characterized in that: The second tube inspection component (4) is installed close to the first opening (23), and the second tube inspection component (4) detects whether there is a riveted tube in the second tube section (22) by irradiating the first opening (23).

10. The tube feeding device of a binding machine according to claim 1, characterized in that: A motor (8) and a pipe delivery wheel (9) are installed on the frame (1); the pipe delivery wheel (9) is connected to the first conduit (2); and the motor (8) drives the pipe delivery wheel (9) to rotate so as to deliver the riveted pipe in the first conduit (2).

Images