Force measuring and cutting integrated device for elastic band
By designing an integrated device for measuring and cutting of elastic bands including supporting chassis, movable seats, tension gauges and cutting components, the problem of measuring and cutting length of elastic bands is solved, and accurate measurement and quantitative cutting of elastic bands are achieved. Improve the convenience and training effect of clinical rehabilitation work.
Patent Information
- Application Number
- CN202420670426.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-02
AI Technical Summary
In clinical rehabilitation, the elastic properties of elastic bands produced by different manufacturers vary greatly, making it difficult to achieve standardization of training. In addition, changes in mechanical parameters need to be measured during the use of elastic bands. Different circumferences of the annular elastic band lead to force differences, and the cutting length is difficult Quantitative, affecting the effect of rehabilitation training.
Design an integrated device for measuring and cutting with elastic belt force, including a support frame, a moving seat, a tension gauge, a clamp and a cutting assembly. The moving seat is translated by the driving assembly to measure tension, using unwinding, flattening, conveying and cutting mechanisms Measure and quantitatively cut the coiled elastic band.
Accurate measurement and quantitative cutting of the mechanical parameters of the elastic belt are achieved, improving the convenience of clinical rehabilitation work and ensuring the standardization and effectiveness of rehabilitation training.
Smart Images
Figure CN222212483U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of elastic band detection and processing equipment, and in particular relates to an elastic band force measurement and cutting integrated device. Background Art
[0002] Elastic bands are often used in clinical rehabilitation to train patients' strength. By actively pulling the elastic bands and maintaining a specific posture, patients can train specific parts of their limbs to achieve the effect of clinical rehabilitation. Usually, elastic bands produced by different manufacturers have different elastic properties, and the actual functional parameters of elastic bands are always very different. In addition, in clinical rehabilitation work, patients often use elastic bands purchased outside for training. This makes it difficult to unify the elastic bands used, resulting in the inability to unify and standardize rehabilitation training. Therefore, it is usually necessary to measure the force of the elastic bands to understand the elastic parameter characteristics of the elastic bands and provide guidance for rehabilitation training. The importance of measuring the force of elastic bands is mainly reflected in the following points: First, the mechanical parameters of elastic bands from different manufacturers and models often vary greatly, making it difficult to standardize training during use; second, the mechanical parameters of elastic bands will also change during use, and it is necessary to measure the mechanical parameters of elastic bands to determine their service life; third, the force generated by the same type of elastic band after stretching the same distance (different length changes) varies according to the circumference, so it is necessary to measure the force of elastic bands of different circumferences. On the other hand, existing elastic bands are usually purchased in whole rolls, and need to be cut into specific lengths according to needs when used, but how to quantitatively cut when cutting elastic bands is a common problem for rehabilitation clinicians.
[0003] In summary, it is necessary to develop and design an elastic band force measurement and cutting integrated device to improve the convenience of clinical rehabilitation work, and to ensure the normal progress of rehabilitation training and the effect of rehabilitation training by accurately grasping the parameters of the elastic band and confirming the length of the elastic band. Utility Model Content
[0004] The purpose of the utility model is to provide an elastic band force measuring and cutting integrated device to improve the convenience of clinical rehabilitation work, and to ensure the normal progress of rehabilitation training and the effect of rehabilitation training by accurately grasping the parameters of the elastic band and confirming the length of the elastic band.
[0005] The technical solution adopted by the utility model is: an elastic band force measuring and cutting integrated device, including a supporting base, a moving seat and a driving component for driving the moving seat to move in a translational manner along the length direction are arranged above the supporting base, a tensile gauge is installed on the moving seat, a supporting base is also installed on the supporting base, and clamps are installed on the tensile gauge and the supporting base; a cutting component is also installed on the supporting base, and the cutting component includes an unwinding mechanism for unwinding the elastic band roll, a flattening mechanism for flattening the unwound elastic band, a conveying mechanism for quantitatively moving the elastic band, and a cutting mechanism for cutting the elastic band.
[0006] Preferably, the driving assembly includes two shaft seats mounted on the supporting frame, a lead screw is mounted between the two shaft seats, and a driving motor for driving the lead screw is also mounted on the supporting frame; a nut is provided on the lead screw, and the movable seat is fixedly mounted on the nut.
[0007] Preferably, a plurality of proximity switches for detecting the position of the movable seat are also installed on the supporting chassis, and the movable seat moves above each proximity switch.
[0008] Preferably, the clamp includes a support plate, two end blocks are installed on the support plate, a guide rod and a threaded rod are installed between the two end blocks, the threaded rod has forward and reverse threads and an adjustment end is installed at one end of the threaded rod; it also includes a first clamping block and a second clamping block with guide holes and threaded holes, both of which are respectively installed on the forward spiral part and the reverse spiral part of the threaded rod, and the guide rod is located in the guide hole.
[0009] Preferably, the unwinding mechanism of the cutting assembly includes a bracket, a mounting unwinding shaft is installed at the upper end of the bracket, a limiting disc is provided at one end of the mounting unwinding shaft, and a lock nut is provided at the other end; a support rod is also installed on the bracket, and a guide wheel is installed at the upper end of the support rod.
[0010] Preferably, the flattening mechanism of the cutting assembly comprises a flattening support and two upper and lower flattening rollers mounted on the flattening support, and the elastic band passes between the two flattening rollers.
[0011] Preferably, the conveying mechanism of the cutting assembly includes a conveying support, on which an upper conveying wheel and a lower conveying wheel are mounted, the elastic belt passes between the upper conveying wheel and the lower conveying wheel, and also includes a conveying motor for driving the upper conveying wheel or the lower conveying wheel.
[0012] Preferably, the cutting mechanism of the cutting assembly includes an upper base and a lower base, a guide column is installed between the two, a knife seat moving along the guide column is installed between the upper base and the lower base, a cutting knife is installed at the bottom of the knife seat, and a cutting motor is also included to drive the knife seat to move up and down.
[0013] The advantages and positive effects of the utility model are:
[0014] The utility model provides an elastic band force measurement and cutting integrated device with a reasonable structural design. By installing a moving seat driven by a driving component to move in translation on a supporting chassis, installing a dynamometer on the moving seat, and installing a clamp on the dynamometer and the supporting chassis, the technical effect of clamping and fixing the two ends of the elastic band with two clamps, pulling the elastic band to stretch it to a certain extent, and reading the tension reading through the dynamometer is achieved, thereby achieving convenient measurement of the tension of the elastic band and being able to quickly obtain the mechanical parameters of the elastic band. By installing a cutting assembly composed of an unwinding mechanism, a flattening mechanism, a conveying mechanism, and a cutting mechanism on the supporting chassis, the rolled elastic band can be continuously unwound, flattened, conveyed, and cut. In the process of cutting, the elastic band can be cut to a set length by quantitatively conveying and moving the conveying mechanism to the elastic band.
[0015] The elastic band force measuring and cutting integrated device in the utility model improves the convenience of clinical rehabilitation work, and ensures the normal progress of rehabilitation training and the effect of rehabilitation training by accurately grasping the parameters of the elastic band and confirming the length of the elastic band. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a main structural schematic diagram of the utility model;
[0017] Figure 2 It is a three-dimensional structural schematic diagram of the main part of the utility model;
[0018] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle clamp;
[0019] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the cutting component.
[0020] In the figure:
[0021] 1. Driving motor; 2. Support; 3. Lead screw; 4. Controller; 5. Moving seat; 6. Proximity switch; 7. Support chassis; 8. Tension gauge; 9. Clamp; 9-1. Guide rod; 9-2. Support plate; 9-3. Adjustment end; 9-4. End block; 9-5. Threaded rod; 9-6. First clamping block; 9-7. Second clamping block; 10. Support seat; 11. Bracket; 12. Unwinding reel; 13. Support rod; 14. Guide wheel; 15. Flattening mechanism; 16. Conveying mechanism; 16-1. Upper conveying wheel; 16-2. Conveying motor; 16-3. Lower conveying wheel; 16-4. Conveying support; 17. Cutting motor; 18. Upper base; 19. Knife holder; 20. Guide column; 21. Lower base; 22. Base. DETAILED DESCRIPTION
[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given to explain in detail.
[0023] See also Figure 1 and Figure 2 The elastic band force measuring and cutting integrated device of the utility model comprises a supporting frame 7. As shown in the figure, supports 2 are fixedly installed at the bottom of both ends of the supporting frame 7.
[0024] A moving seat 5 and a driving assembly for driving the moving seat 5 to move in translation along the length direction are arranged above the supporting base frame 7. A dynamometer 8 is installed on the moving seat 5, and a supporting seat 10 is also installed on the supporting base frame 7. Clamps 9 are installed on both the dynamometer 8 and the supporting seat 10. The two clamps 9 are used to clamp and fix the two ends of the elastic band. The force measurement principle is: one end of the elastic band is fixed and the other end is connected to the movable end of the dynamometer 8. The driving assembly is used to drive the moving seat 5 and the dynamometer 8 to move to a specific position. At this time, the elastic band is stretched to a specific length. The current tension value can be read through the indication of the dynamometer 8 to achieve the force measurement effect.
[0025] In this embodiment, the driving assembly includes two shaft seats mounted on the supporting frame 7, a lead screw 3 is mounted between the two shaft seats, and a driving motor 1 for driving the lead screw 3 is also mounted on the supporting frame 7; a nut is provided on the lead screw 3, and a moving seat 5 is fixed on the nut. The driving motor 1 drives the lead screw 3 to rotate forward or reverse, and the lead screw 3 drives the moving seat 5 to carry the dynamometer 8 to move forward or backward through the nut.
[0026] In this embodiment, a plurality of proximity switches 6 for detecting the position of the moving seat 5 are also installed on the supporting frame 7, and the moving seat 5 moves above each proximity switch 6. Figure 1 and Figure 2 As shown in the figure, there are three proximity switches 6, namely, left, middle and right, which correspond to the three positions of the moving seat 5 respectively: the first proximity switch 6 (the proximity switch 6 on the far right in the figure) is used to determine the initial position of the moving seat 5. Before starting the force measurement operation, the moving seat 5 should be moved to the initial position. At this time, the distance between the two clamps 9 is the static length of the elastic band; the second and third proximity switches 6 (the proximity switches 6 on the far left and middle in the figure) are used to determine the two force measurement positions of the moving seat 5. After starting the force measurement operation, the moving seat 5 first moves to the middle position and then to the left position, realizing two force measurements, and recording two tension readings by the dynamometer 8.
[0027] See also Figure 3 , we can see that:
[0028] The clamp 9 includes a support plate 9-2, on which two end blocks 9-4 are mounted, and between which a guide rod 9-1 and a threaded rod 9-5 are mounted. The threaded rod 9-5 has forward and reverse threads and an adjustment end 9-3 is mounted at one end of the threaded rod 9-5, and the threaded rod 9-5 can be driven to rotate forward or reversely by adjusting the end 9-3. The clamp 9 also includes a first clamp block 9-6 and a second clamp block 9-7 with a guide hole and a threaded hole, which are respectively mounted on the forward spiral part and the reverse spiral part of the threaded rod 9-5, and the guide rod 9-1 is located in the guide hole.
[0029] When the threaded rod 9-5 is driven to rotate forward or backward, the first clamp block 9-6 and the second clamp block 9-7 move toward or away from each other, and the cooperation between the guide rod 9-1 and the guide hole is used to improve the stability of the movement of the first clamp block 9-6 and the second clamp block 9-7. When the first clamp block 9-6 and the second clamp block 9-7 are sufficiently close, the end of the elastic band is clamped and fixed, and when the first clamp block 9-6 and the second clamp block 9-7 are separated, the end of the elastic band is released from the clamping and fixing effect.
[0030] A cutting assembly is also mounted on the supporting chassis 7, and the cutting assembly includes an unwinding mechanism for unwinding the elastic band roll, a flattening mechanism 15 for flattening the unwinding elastic band, a conveying mechanism 16 for quantitatively moving the elastic band, and a cutting mechanism for cutting the elastic band. As shown in the figure, the unwinding mechanism, the flattening mechanism 15, the conveying mechanism 16, and the cutting mechanism are mounted on a base 22.
[0031] See also Figure 4 , we can see that:
[0032] The unwinding mechanism of the cutting assembly includes a bracket 11, a mounting unwinding shaft is installed at the upper end of the bracket 11, a limiting disc is provided at one end of the mounting unwinding shaft, and a lock nut is provided at the other end. When in use, the core tube in the middle of the rolled elastic band is sleeved on the mounting unwinding shaft, and the side of the elastic band roll is connected to the limiting disc, so it is not easy to get loose. A lock nut is installed at the other end of the mounting unwinding shaft to prevent the elastic band roll from falling off the mounting unwinding shaft during the rotating unwinding process.
[0033] In this embodiment, a support rod 13 is also installed on the bracket 11, and a guide wheel 14 is installed on the upper end of the support rod 13. A belt groove is provided on the rim of the guide wheel 14, and the unwound elastic belt passes around the guide wheel 14 and is located in its belt groove.
[0034] The flattening mechanism 15 of the cutting assembly includes a flattening support and two upper and lower flattening rollers mounted on the flattening support, and the elastic band passes through the two flattening rollers. Initially, the end of the pulled elastic band passes through the two flattening rollers, and in the subsequent movement process, due to the joint action of the upper and lower flattening rollers, the elastic band moves backward in a flat state.
[0035] The conveying mechanism 16 of the cutting assembly includes a conveying support 16-4, on which an upper conveying wheel 16-1 and a lower conveying wheel 16-3 are mounted, and the elastic belt passes between the upper conveying wheel 16-1 and the lower conveying wheel 16-3, and also includes a conveying motor 16-2 for driving the upper conveying wheel 16-1 or the lower conveying wheel 16-3. Under the driving action of the conveying motor 16-2, the elastic belt clamped between the upper conveying wheel 16-1 and the lower conveying wheel 16-3 is conveyed backward, and the conveyed length is determined by measuring the number of rotations of the upper conveying wheel 16-1 or the lower conveying wheel 16-3, so as to achieve quantitative cutting.
[0036] The cutting mechanism of the cutting assembly includes an upper base 18 and a lower base 21, a guide column 20 is installed between the two, a knife seat 19 moving along the guide column 20 is installed between the upper base 18 and the lower base 21, and a cutter is installed at the bottom of the knife seat 19, and also includes a cutting motor 17 driving the knife seat 19 to move up and down. Specifically, as shown in the figure, the cutting motor 17 is installed above the upper base 18, a threaded hole is provided in the middle of the knife seat 19, an external thread is provided on the output shaft of the cutting motor 17, and the output shaft of the cutting motor 17 is located in the threaded hole of the knife seat 19, when the output shaft of the cutting motor 17 rotates forward, the knife seat 19 and the cutter move downward, and vice versa, when the output shaft of the cutting motor 17 rotates reversely, the knife seat 19 and the cutter move upward.
[0037] like Figure 1 and Figure 2 As shown in FIG, a controller 4 is also installed on the side of the supporting chassis 7, and the driving motor 1, each proximity switch 6, the conveying motor 16-2 of the cutting assembly and the cutting motor 17 are all connected to the controller 4. The controller 4 has a display screen and control buttons, and the control buttons include a mode selection button and a cutting length and cutting quantity setting button.
[0038] Directions:
[0039] The rolled elastic band is loaded onto the unwinding mechanism of the integrated device, and the elastic band is pulled to unwind and the end of the elastic band passes through the guide wheel 14, between the two flattening rollers of the flattening mechanism 15, and between the upper conveying wheel 16-1 and the lower conveying wheel 16-3 of the conveying mechanism 16 in sequence, and finally the end reaches the bottom of the cutter;
[0040] The force measurement mode is selected through the controller 4, and at this time the controller 4 sends instructions to the conveying mechanism 16 and the cutting mechanism, the conveying mechanism 16 conveys the elastic band of the set length forward and is cut into sections by the cutting mechanism to form a sample band for force measurement; the two ends of the sample band are clamped and fixed by two clamps respectively, and at this time the elastic band is in a natural unstretched state; then the force measurement operation is started, the driving component first drives the movable seat 5 to the first force measurement position (that is, the position corresponding to the middle proximity switch 6), and the tension reading of the dynamometer 8 is recorded once, and then the driving component drives the movable seat 5 to the second force measurement position (that is, the position corresponding to the left proximity switch 6), and the tension reading of the dynamometer 8 is recorded once; the force measurement operation on the elastic band is completed, and the mechanical parameters of the elastic band are obtained;
[0041] The cutting length and cutting quantity of the elastic band are set by the controller 4. At this time, the controller 4 sends instructions to the conveying mechanism 16 and the cutting mechanism. Every time the conveying mechanism 16 conveys and moves the elastic band of the set length forward, the cutting mechanism performs a cutting operation until the set number of elastic band cutting operations are completed. The cut elastic band is dropped and picked up by the end of the integrated device.
Claims
1. An elastic band force measuring and cutting integrated device, characterized by: The invention comprises a supporting frame (7), a movable seat (5) and a driving assembly for driving the movable seat (5) to move in a longitudinal direction are arranged above the supporting frame (7), a tensile gauge (8) is installed on the movable seat (5), a supporting seat (10) is also installed on the supporting frame (7), and a clamp (9) is installed on both the tensile gauge (8) and the supporting seat (10); a cutting assembly is also installed on the supporting frame (7), and the cutting assembly comprises an unwinding mechanism for unwinding an elastic band roll, a flattening mechanism (15) for flattening the unwound elastic band, a conveying mechanism (16) for quantitatively moving the elastic band, and a cutting mechanism for cutting the elastic band.
2. The elastic band force measuring and cutting integrated device according to claim 1, characterized in that: The driving assembly comprises two shaft seats mounted on a supporting base frame (7), a lead screw (3) is mounted between the two shaft seats, and a driving motor (1) for driving the lead screw (3) is also mounted on the supporting base frame (7); a nut is provided on the lead screw (3), and a movable seat (5) is mounted and fixed on the nut.
3. The elastic band force measuring and cutting integrated device according to claim 2, characterized in that: A plurality of proximity switches (6) for detecting the position of the movable seat (5) are also installed on the supporting base frame (7), and the movable seat (5) moves above each proximity switch (6).
4. The elastic band force measuring and cutting integrated device according to claim 3, characterized in that: The clamp (9) comprises a support plate (9-2), two end blocks (9-4) are mounted on the support plate (9-2), a guide rod (9-1) and a threaded rod (9-5) are mounted between the two end blocks (9-4), the threaded rod (9-5) has forward and reverse threads and an adjustment end head (9-3) is mounted at one end of the threaded rod (9-5); and further comprises a first clamping block (9-6) and a second clamping block (9-7) with a guide hole and a threaded hole, the two being mounted on the forward spiral part and the reverse spiral part of the threaded rod (9-5) respectively, and the guide rod (9-1) is located in the guide hole.
5. The elastic band force measuring and cutting integrated device according to claim 1, characterized in that: The unwinding mechanism of the cutting component comprises a bracket (11), a mounting unwinding shaft is installed at the upper end of the bracket (11), a limiting disc is provided at one end of the mounting unwinding shaft, and a lock nut is provided at the other end; a support rod (13) is also installed on the bracket (11), and a guide wheel (14) is installed at the upper end of the support rod (13).
6. The elastic band force measuring and cutting integrated device according to claim 5, characterized in that: The flattening mechanism (15) of the cutting component comprises a flattening support and two upper and lower flattening rollers installed on the flattening support, and the elastic belt passes through between the two flattening rollers.
7. The elastic band force measuring and cutting integrated device according to claim 6, characterized in that: The conveying mechanism (16) of the cutting assembly comprises a conveying support (16-4), an upper conveying wheel (16-1) and a lower conveying wheel (16-3) are mounted on the conveying support (16-4), an elastic belt passes between the upper conveying wheel (16-1) and the lower conveying wheel (16-3), and a conveying motor (16-2) is also included for driving the upper conveying wheel (16-1) or the lower conveying wheel (16-3).
8. The elastic band force measuring and cutting integrated device according to claim 7, characterized in that: The cutting mechanism of the cutting assembly comprises an upper base (18) and a lower base (21), a guide column (20) is installed between the two, a knife seat (19) moving along the guide column (20) is installed between the upper base (18) and the lower base (21), a cutting knife is installed at the bottom of the knife seat (19), and a cutting motor (17) is also included to drive the knife seat (19) to move up and down.