Tape winding device with electrode anti-overlying function

Abstract

The invention relates to an anti-overlying tape winding device with electrodes. The anti-overlying tape winding device comprises a tape winding mechanism, a positioning mechanism and a tension adjusting system, the tape winding mechanism comprises a stepping motor, a motor support and tape winding wheels, the stepping motor drives the two tape winding wheels to rotate synchronously, so that the strip-shaped electrode is wound without lamination and moves at a constant speed, and the movement speed of the strip-shaped electrode is 0-100 mm / s; the tension adjusting system comprises a fixed tension arm, a rotary tension arm, a tension sensor, an acceleration sensor, a guide wheel and a pulley; a tension sensor and an acceleration sensor are integrated on the rotary tension arm, the tension value and the motion stability of the strip-shaped electrode are monitored in real time, and the tension value is adjustable within the range of 1-20 N; the fixed tension arm and the rotary tension arm adjust the tension of the strip-shaped electrode through an opening and closing angle, and the pulley is in direct contact with the strip-shaped electrode.

Description

Technical Field

[0001] The invention relates to a tape winding device with electrodes to prevent overlapping. Background Art

[0002] Microchannel structures have attracted much attention due to their wide applications in the fields of radiators, microreactors, etc., and have the advantages of simple structure and large specific surface area. However, with the continuous expansion of the scope of application, problems such as low processing efficiency and high manufacturing cost have become key factors restricting the development of microchannel structures. Therefore, improving the processing efficiency of microchannel structures and reducing manufacturing costs have become key topics for researchers at home and abroad. As an ideal microstructure processing method, wire EDM is widely used in the processing of microchannel structures due to its characteristics of non-contact, no macro-cutting force and wide application range. Studies have shown that curved microchannels are superior to straight microchannels in terms of heat transfer efficiency, and the flow characteristics of the medium are better under low flow rate conditions. However, the current efficient processing and manufacturing methods for curved microchannel structures are still insufficient, resulting in related research remaining in the theoretical calculation and model simulation stage, lacking physical experimental verification. Therefore, developing a new and efficient processing method for curved microchannel structures has important scientific research value.

[0003] However, at present, the EDM method of curved microchannels can generally only use wire electrodes or narrower strip electrodes. There is a phenomenon that wider strip electrodes are overlapped in the tape winding mechanism, resulting in damage to the strip electrodes, which seriously affects the processing accuracy and consistency of the microchannel structure. Traditional tape winding mechanisms often find it difficult to maintain stable tension and movement stability during the winding process, resulting in deformation, breakage or uneven stacking of foil strip electrodes. Moreover, the existing bending processing method uses a fixed bending fixture to shape the strip electrode. The strip electrode and the fixture surface are in sliding friction, which will cause poor movement accuracy of the strip electrode and unnecessary lateral deformation. In addition, the shape and size of the processed curved microchannel can only be the shape of the bending shaping fixture used. If you want to process curved microchannels of different shapes, you can only manufacture and replace new bending fixtures, which is very inconvenient. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide a tape winding device for preventing tape electrodes from overlapping, so as to solve the problem of overlapping when the tape reel is wound during the process of strip electrode electrospark machining of microchannels, thereby causing damage to the strip electrode.

[0005] In order to solve the above technical problems, the present invention provides a tape winding device with electrode stacking prevention, comprising: a tape winding mechanism and a tension adjustment system;

[0006] The tape winding mechanism includes a stepper motor, a motor bracket and a tape winding wheel. The stepper motor drives two tape winding wheels to rotate synchronously, so that the strip electrode is wound without overlapping and moves at a uniform speed. The movement speed of the strip electrode is 0-100 mm / s.

[0007] The tension adjustment system includes a fixed tension arm, a rotating tension arm, a tension sensor, an acceleration sensor, a guide wheel and a pulley; the rotating tension arm is integrated with a tension sensor and an acceleration sensor to monitor the tension value and motion stability of the strip electrode in real time, and the tension value is adjustable within the range of 1-20N;

[0008] The fixed tension arm and the rotating tension arm adjust the tension of the strip electrode through the opening and closing angles, and the pulley is in direct contact with the strip electrode.

[0009] In a preferred embodiment, the two belt reels of the belt reel mechanism are driven to rotate synchronously by a controller, and when the belt electrode of one side of the belt reel is nearly exhausted, the controller drives the stepper motor to reverse.

[0010] In a preferred embodiment, the strip electrode has a thickness of 30-100 μm and a width of 500-4000 μm.

[0011] In a preferred embodiment, the feeding mechanism is used to drive the workpiece to move perpendicularly to the processing plane, so that the strip electrode processes a curved microchannel structure on the workpiece, and the width of the microchannel structure is less than 100 μm.

[0012] In a preferred embodiment, the feeding mechanism drives the workpiece to approach and move away from the strip electrode multiple times to machine multiple parallel and spaced curved microchannel structures on the workpiece, and controls the spacing distance between adjacent microchannel structures and the machining depth of a single microchannel structure.

[0013] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0014] 1. By designing a new type of tape winding device with adjustable tension, the problem of tape winding and overlapping during the strip electrode EDM microchannel process is effectively prevented, thereby reducing the risk of electrode damage and extending the service life of the electrode.

[0015] 2. The tape winding mechanism of the present invention can realize the non-overlapping winding and uniform speed movement of the strip electrode. The movement speed of the electrode can be flexibly adjusted within the range of 0 to 100 mm / s to meet different processing requirements, thereby significantly improving the processing efficiency and reducing the time and cost of manual replacement of electrodes.

[0016] 3. The introduced tension adjustment mechanism ensures that the tension value is adjustable within the range of 1 to 20N by real-time monitoring of the tension level and movement stability of the strip electrode, thus avoiding problems such as electrode deformation, breakage or uneven stacking, and further ensuring the stability and accuracy of the processing process.

[0017] 4. The equipment is suitable for strip electrodes of different thicknesses (30-100μm) and widths (500-4000μm). It can process microchannel structures with a width of less than 100μm on the workpiece, meeting the needs of high-precision processing and having broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic diagram of a tape winding device with electrode stacking prevention in a bending and cutting device according to the present invention;

[0020] Figure 2 A schematic diagram of a tape winding device with electrodes for preventing overlapping of the present invention;

[0021] Figure 3 It is a schematic diagram of a tension control device of a tape winding device with electrode stacking prevention of the present invention;

[0022] Figure 4 It is a schematic diagram of a power generating device of a belt winding device with electrode stacking prevention of the present invention;

[0023] Figure 5 A schematic diagram of a guide of a tape winding device with electrode stacking prevention according to the present invention;

[0024] In the figure, the device involved in the present invention includes a tape winding mechanism (100). The tape winding mechanism (100) is composed of a tape winding mechanism controller (111), a tension controller (120), a tension fixing arm (121), a tension rotating arm (122), a rolling tension sensor (123), an acceleration sensor (124), a pulley (125), a limit column (126), a knob (127), a tape winding mechanism housing (130), a tape winding wheel as a whole (140), a tape winding wheel (141), a stepping motor (143), a motor bracket (144), a tape pressing wheel (150), and a guide (170). The main components used in the processing process include a workpiece (300), a manufactured curved microchannel (310), a strip electrode (40), a guide wheel group (50), a tensioning mechanism (60), a main back plate (70), and a conductive block (80). DETAILED DESCRIPTION

[0025] In order to make the technical solutions and features of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific examples. It should be understood that these examples are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0026] Example 1

[0027] like Figure 1-3 As shown, the present invention provides a tape winding device with electrodes to prevent overlapping. The device is mainly composed of a tape winding mechanism 100 and a bending and cutting device 20.

[0028] The tape winding mechanism 100 is used for winding and tension control of the strip electrode 40. It includes a tape winding mechanism controller 111, a tension controller 120, a tension fixing arm 121, a tension rotating arm 122, a rolling tension sensor 123, an acceleration sensor 124, a pulley 125, a limit column 126, a knob 127, a tape winding mechanism housing 130, a tape pressing roller 150, and a guide 170. The tape winding wheel assembly 140 is composed of a tape winding wheel 141, a stepping motor 143, and a motor bracket 144.

[0029] The stepper motor 143 drives the belt reel 141 to rotate to maintain a uniform winding speed of the strip electrode 40. The tension adjustment system is composed of a tension fixing arm 121, a tension rotating arm 122 and a pulley 125. By adjusting the opening and closing angle of the tension rotating arm 122, the tension of the strip electrode 40 can be precisely controlled. The tension sensor 123 and the acceleration sensor 124 are used to monitor the tension and movement state of the strip electrode 40 in real time to ensure that the tension is controlled within the range of 1-20N to avoid problems such as stacking and breaking of the strip electrode during processing.

[0030] The guide 170 can provide positioning for the strip electrode 40 when it is wound into the take-up wheel 141, and can adapt to the thickness change caused by the strip electrode 40 being wound on the take-up wheel 141 for different numbers of times. The guide 170 includes a positioning groove 171, a roller 172, a spring baffle 173, a fixing seat 174 and a wheel groove 175. The positioning groove 171, the roller 172 and the spring baffle 173 constrain the strip electrode 40 in both the width and thickness directions, so that it can always lean against one side of the positioning groove 171 when moving, ensuring accurate and smooth movement.

[0031] The pressure wheel 150 always provides a certain pressure on the strip electrode 40 in the radial direction of the winding wheel 141, so that the strip electrode 40 can be tightly stacked layer by layer when winding on the winding wheel 141. The length of the strip electrode 40 that can be wound on the winding wheel 141 ranges from 10 to 200 m.

[0032] The belt winding mechanism controller 111 realizes the non-overlap winding of the belt electrode between the belt winding wheels 141 by controlling the speed of the stepper motor 143. The movement speed can be flexibly adjusted within the range of 0-100 mm / s to meet different processing requirements. When the belt electrode in the belt winding wheel 141 is about to run out, the controller 111 automatically reverses the motor to achieve continuous processing, reducing downtime and the cost of manual electrode replacement.

[0033] The bending cutting device 20 is used for the precise positioning of the strip electrode 40 and the processing of the microchannel structure.

[0034] The feeding mechanism 60 drives the workpiece 300 to move perpendicularly to the processing plane, so that the strip electrode 40 performs electrospark machining on the workpiece surface to form a microchannel structure 310. The microchannel width is less than 100 μm, and the feeding mechanism can control the spacing between two adjacent microchannel structures and the depth of a single microchannel to achieve multiple processing.

[0035] The strip electrode 40 has a thickness of 30-100 μm and a width of 500-4000 μm, and is suitable for electrospark machining of microchannels.

[0036] Example 2

[0037] The tape winding device provided by the present invention can also be used for processing microchannels of different sizes and shapes. By adjusting the tension control parameters of the tape winding mechanism 100 and the moving path of the positioning element in the bending and cutting device 20, the diversification and high-precision processing of the microchannel can be achieved.

[0038] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A tape winding device with electrode anti-overlapping, characterized in that include: Tape winding mechanism and tension adjustment system; The tape winding mechanism includes a stepper motor, a motor bracket and a tape winding wheel. The stepper motor drives two tape winding wheels to rotate synchronously, so that the strip electrode is wound without overlapping and moves at a uniform speed. The movement speed of the strip electrode is 0-100 mm / s. The tension adjustment system includes a fixed tension arm, a rotating tension arm, a tension sensor, an acceleration sensor, a guide wheel and a pulley; the rotating tension arm is integrated with a tension sensor and an acceleration sensor to monitor the tension value and motion stability of the strip electrode in real time, and the tension value is adjustable within the range of 1-20N; The fixed tension arm and the rotating tension arm adjust the tension of the strip electrode through the opening and closing angles, and the pulley is in direct contact with the strip electrode.

2. A tape winding device with electrode stacking prevention according to claim 1, characterized in that: The two belt reels of the belt reel mechanism are driven to rotate synchronously by a controller. When the belt-shaped electrode of the belt reel on one side is nearly exhausted, the controller drives the stepping motor to reverse.

3. A tape winding device with electrode stacking prevention according to claim 1, characterized in that: The strip electrode has a thickness of 30-100 μm and a width of 500-2000 μm.

4. A tape winding device with electrode stacking prevention according to claim 3, characterized in that: The feeding mechanism is used to drive the workpiece to move perpendicularly to the processing plane, so that the strip electrode processes a curved microchannel structure on the workpiece, and the width of the microchannel structure is less than 100 μm.

5. A tape winding device with electrode stacking prevention according to claim 5, characterized in that: The feeding mechanism drives the workpiece to approach and move away from the strip electrode multiple times, so as to process multiple parallel and spaced curved microchannel structures on the workpiece, and control the spacing distance between adjacent microchannel structures and the processing depth of a single microchannel structure.

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