Tension sensing device for material line transport

Abstract

The application discloses a tension sensing device for material line conveying, which comprises a shell and a material line penetrating through the shell. The shell is provided with a penetrating piece and an exiting piece at two ends respectively, and a guide pipe, a pressure sensor and a control PCB board are arranged in the shell. The pressure sensor and the control PCB board are electrically connected. The pressure sensor is used for detecting the change of the wire tension and feeding back an electric signal to the control PCB board. The control PCB board can output a signal to an external motor to adjust the rotating speed and balance the tension of the material line, so that the material line can be stably conveyed. One end of the guide pipe is connected to the penetrating piece, and the other end penetrates through the exiting piece. The material line enters from the penetrating piece, passes through the guide pipe and then exits from the exiting piece. The guide pipe is used for limiting the moving track of the material line. The material line can only be conveyed along the contour of the guide pipe, so that the material line is prevented from deviating and mispositioning. The guide pipe can also guide the user to penetrate the material line, so that the threading is more convenient.

Description

Technical Field

[0001] This invention belongs to the field of conveying device technology, and specifically relates to a tension sensing device for material conveying line. Background Technology

[0002] When factories produce specific products, they need to feed yarn, which is usually done using a motor to drive the yarn feed. For example, in the textile industry, machines need to continuously feed yarn for the processing and production of textile products, and 3D printers also need to continuously feed ABS material yarn for product molding when printing models.

[0003] The tension of the wire is not constant during the conveying process; it may change due to variations in motor speed or external environmental conditions. These tension variations can affect processing results. Therefore, devices are installed to adjust the wire tension. The tension is detected and adjusted as the wire is passed through the tension adjustment device. However, existing wire tension adjustment devices lack guidance when threading the wire, making the process cumbersome and inconvenient for users. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a tension sensing device for material conveying lines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tension sensing device for material conveying line, comprising a housing and a material line passing through the housing, wherein the housing is provided with an inlet and an outlet for the material line to pass through at both ends, and a guide tube, a pressure sensor and a control PCB board are provided inside the housing, the pressure sensor and the control PCB board being electrically connected, one end of the guide tube being connected to the inlet and the other end passing through the outlet, the material line entering from the inlet, passing through the guide tube and exiting from the outlet; Furthermore, the housing is L-shaped, with the insert located at the lateral end of the housing and the exit located at the longitudinal end of the housing. The installation positions of the insert and exit make the guide tube have an arc-shaped profile.

[0006] Furthermore, the pressure sensor contacts the arc-shaped area at the center of the guide tube.

[0007] Furthermore, the housing is provided with an insertion part mounting groove and an exit part mounting groove, and the insertion part and the exit part are respectively assembled in the insertion part mounting groove and the exit part mounting groove.

[0008] Furthermore, the end of the protruding part near the housing is provided with an installation pipe extending into the housing, and the end of the guide tube is inserted into the installation pipe.

[0009] Furthermore, the outlet component has a guide surface inside the port near the installation pipe. The material line at the end of the guide pipe enters the outlet component along the guide surface and then exits the outlet component.

[0010] Furthermore, the guide tube includes a plastic hose.

[0011] Furthermore, the pressure sensor includes a base, a support located above the base, a sensing element mounted on the base, and a spring connected to the base and the support. The spring drives the support to move, and the guide tube contacts the upper part of the support. Changes in the tension of the material line drive the guide tube to move, and the guide tube moves in conjunction with the support. The sensing element feeds back different electrical signals to the control PCB board through the movement of the support.

[0012] Furthermore, the housing is provided with an assembly groove, and the pressure sensor is installed in the assembly groove.

[0013] Furthermore, the housing includes an upper housing and a lower housing, which are fastened together and fixed with screws.

[0014] The beneficial effects of adopting the technical solution of this invention are as follows: The housing contains a guide tube, a pressure sensor, and a control PCB board. The pressure sensor detects changes in wire tension and sends an electrical signal to the control PCB board. The control PCB board can output a signal to the external motor to adjust its speed and balance the tension of the material wire, enabling the material wire to be transported stably and preventing it from breaking due to excessive tension.

[0015] One end of the guide tube is connected to the insertion part, and the other end is connected to the exit part. The material line enters from the insertion part, passes through the guide tube, and exits from the exit part. The guide tube is used to limit the movement trajectory of the material line. The material line can only be conveyed along the outline of the guide tube to prevent the material line from deviating or misaligning. The guide tube can also guide the user to insert the material line, making the insertion more convenient.

[0016] The housing is L-shaped, with the insertion part located at the transverse end and the exit part at the longitudinal end. This design changes the direction of the material conveying line from transverse to longitudinal. The placement of the insertion and exit parts gives the guide tube an arc-shaped profile, which facilitates the insertion of the material line. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a perspective view of the open state of the present invention.

[0019] Figure 3 This is a schematic diagram of the present invention.

[0020] Figure 4This is a perspective view of the pressure sensor of the present invention.

[0021] Figure 5 This is a schematic diagram of the sensing element of the present invention.

[0022] Reference numerals: 1. Housing, 2. Material line, 3. Insertion part, 4. Exit part, 5. Guide tube, 6. Pressure sensor, 7. Control PCB board, 8. Insertion part mounting slot, 9. Exit part mounting slot, 10. Assembly slot, 11. Installation pipe, 12. Guide surface, 13. Upper housing, 14. Lower housing, 15. Base, 16. Support, 17. Spring, 18. Sensing element, 19. Wire placement post. Detailed Implementation

[0023] The specific solutions and embodiments of the present invention will be further described in conjunction with the accompanying drawings, making the technical solution clearer and more understandable.

[0024] like Figure 1-5 As shown, a tension sensing device for material conveying includes a housing 1 and a material thread 2 passing through the housing 1. An external motor pulls the material thread 2 continuously through the device for production purposes. It can be used for conveying yarn or filament for 3D printers. The housing 2 has an inlet 3 and an outlet 4 at both ends for the material thread 2 to pass through. Inside the housing 1 are a guide tube 5, a pressure sensor 6, and a control PCB board 7. The pressure sensor 6 and the control PCB board 7 are electrically connected. The pressure sensor 6 detects changes in the thread tension and feeds back an electrical signal to the control PCB board 7. The control PCB board 7 outputs a signal to the external motor to adjust its speed and balance the tension of the material thread 2, ensuring stable conveying. One end of the guide tube 5 is connected to the inlet 3, and the other end passes through the outlet 4. The material thread 2 enters through the inlet 3, passes through the guide tube 5, and exits through the outlet 4. The guide tube 5 limits the movement trajectory of the material thread 2, ensuring it can only be conveyed along the contour of the guide tube 5, preventing deviation or misalignment. The guide tube 5 can also guide the user to thread the material line 2, making threading more convenient.

[0025] The housing 1 is L-shaped, with the insert 3 located at the transverse end and the exit 4 located at the longitudinal end, used to change the direction of material conveying 2 from transverse to longitudinal conveying. The installation positions of the insert 3 and the exit 4 make the guide tube 5 have an arc-shaped profile, which facilitates the insertion of the material conveying 2.

[0026] The pressure sensor 6 contacts the arc-shaped area at the center of the guide tube 5. As the material line 2 is continuously conveyed from the horizontal to the vertical direction, changes in the tension of the material line may cause downward pressure on the guide tube 5. Due to the arc-shaped contour of the guide tube 5, the central arc-shaped area is the first to move. Therefore, only by placing the pressure sensor 6 at the center arc-shaped area of ​​the guide tube 5 can the pressure sensor 6 accurately detect changes in the tension of the material line 2. If the pressure sensor 6 is placed too close to the insert 3 or the exit 4, the guide tube 5 needs to move significantly to detect the change in tension, which is not accurate enough.

[0027] The housing 1 is provided with an insertion mounting groove 8 and an exit mounting groove 9. The insertion part 3 and the exit part 4 are respectively assembled in the insertion mounting groove 8 and the exit mounting groove 9 to limit the insertion part 3 and the exit part 4 and prevent them from shifting, which would cause deviation in tension detection. Similarly, the housing 1 is provided with an assembly groove 11, in which the pressure sensor 6 is installed to limit the pressure sensor 6 and prevent it from shifting, which would cause deviation in tension detection.

[0028] The protruding part 4 is provided with an installation pipe 11 extending into the interior of the housing 1 at one end near the housing 1. The end of the guide pipe 5 is inserted into the installation pipe 11, and the installation pipe 11 is used to assemble the guide pipe 5.

[0029] The exit piece 4 has a guide surface 12 inside the port near the installation pipe 11. The guide surface 12 is an inclined surface. The material line 2 at the end of the guide pipe 5 enters the exit piece 4 along the guide surface 12 and then exits the exit piece 4. Since the exit piece 4 is far from the insertion buckle of the material line 2, it may be difficult to thread the line if the distance is too long. Therefore, the design of the guide surface 12 helps the user to thread the material line 2.

[0030] The guide tube 5 includes a plastic hose with good deformation and resilience properties. After the tension of the material line 2 changes and squeezes the guide tube 5, the guide tube 5 returns to its original position through its own resilience.

[0031] The housing 1 includes an upper housing 13 and a lower housing 14, which are fastened together and fixed by screws.

[0032] The pressure sensor 6 includes a base 15, a support 16 located above the base 15, a sensing element 18 mounted on the base 15, and a spring 17 connecting the base 15 and the support 16. The spring 17's own elasticity and resilience drive the support 16 to move longitudinally. The support 16 has a hollow wire-holding post 20, and the guide tube 5 is always placed above the wire-holding post 20. The hollow wire-holding post 20 can reduce weight. When the tension of the material line 2 increases, it will squeeze the guide tube 5 to sag, and the guide tube 5 will drive the support 16 to move downward. When the tension of the material line 2 decreases, the material line 2 and the guide tube 5 will be misaligned, and the guide tube 5 will reset by its own resilience. The spring 17's resilience will drive the support 16 to move slightly upward to reset. The support 2 will move to different degrees under pressure, and the sensing element 18 will feed back different electrical signals to the control PCB board 7. The pressure sensor 6 includes a resistance strain gauge for weighing detection. When the spring 17 undergoes a slight deformation, the sensing element 18 can detect the change in resistance, measure this change in resistance, and feed it back to the control PCB board.

[0033] The control PCB board 7 sends a signal to remind the staff that adjustments are needed, which can be done by issuing an alarm; or by using automatic control, the control PCB board 7 controls the external motor to adjust the speed to balance the tension of the material line 2.

[0034] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A tension sensing device for material conveying, comprising a housing and a material conveyor line passing through the housing, characterized in that, The housing has an inlet and an outlet at both ends for the material line to pass through. Inside the housing is a guide tube, a pressure sensor and a control PCB board. The pressure sensor and the control PCB board are electrically connected. One end of the guide tube is connected to the inlet and the other end passes through the outlet. The material line enters through the inlet, passes through the guide tube and exits through the outlet. The change in material tension causes the guide tube to deform. The pressure sensor in contact with the guide tube detects the material tension and feeds it back to the control PCB board.

2. The tension sensing device for material conveying line according to claim 1, characterized in that, The housing is L-shaped, with the insert located at the lateral end of the housing and the exit located at the longitudinal end of the housing. The installation positions of the insert and exit make the guide tube have an arc-shaped profile.

3. The tension sensing device for material conveying line according to claim 2, characterized in that, The pressure sensor contacts the arc-shaped area at the center of the guide tube.

4. The tension sensing device for material conveying line according to claim 2, characterized in that, The housing is provided with an insertion part mounting slot and an exit part mounting slot, and the insertion part and the exit part are respectively assembled in the insertion part mounting slot and the exit part mounting slot.

5. The tension sensing device for material conveying line according to claim 1, characterized in that, The protruding part has an installation pipe extending into the housing at one end, and the end of the guide tube is inserted into the installation pipe.

6. The tension sensing device for material conveying line according to claim 5, characterized in that, The exit component has a guide surface inside the port near the installation pipe. The material line at the end of the guide pipe enters the exit component along the guide surface and then exits the exit component.

7. The tension sensing device for material conveying line according to claim 1, characterized in that, The guide tube includes a plastic hose.

8. The tension sensing device for material conveying line according to claim 1, characterized in that, The pressure sensor includes a base, a support above the base, a sensing element mounted on the base, and a spring connecting the base and the support. The spring drives the support to move, and the guide tube contacts the top of the support. Changes in the tension of the material line drive the guide tube to move, and the guide tube moves in conjunction with the support. The sensing element feeds back different electrical signals to the control PCB board through the movement of the support.

9. A tension sensing device for material conveying line according to claim 1, characterized in that, The housing has an assembly groove, and the pressure sensor is installed in the assembly groove.

10. A tension sensing device for material conveying line according to claim 1, characterized in that, The housing includes an upper housing and a lower housing, which are fastened together and fixed with screws.

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