Testing device for wheel type coated abrasive tool

Abstract

The invention discloses a testing device for a wheel type coated abrasive tool, which comprises a raw material unreeling mechanism (1), a gluing mechanism (2) and a winding mechanism (3) which are matched with one another, the raw material unreeling mechanism (1) comprises an unreeling device (11), and an unreeling motor (12) is arranged in the unreeling device (11); the gluing mechanism (2) comprises a pair of gluing rollers (22), a gap adjusting device (23) is arranged between the gluing rollers (22), and a glue coating spray head (24), a pressure pump (25) and a glue storage tank (26) which are connected in sequence are further arranged above the gluing rollers (22); the winding mechanism (3) comprises a winding motor (33) and a winding shaft (34), a pressing device (35) is arranged over the winding shaft (34), and a sensor (35a) is arranged in the pressing device (35). The method has the advantages that the production process is systematically simulated, precise test and control of customized products are realized, and the product quality and the production efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of production test equipment for coated molds, and particularly to a test device for wheel coated abrasives. Background Art

[0002] In modern industrial production, wheel coated abrasives, with their unique grinding performance, are used in the mechanical processing field for surface grinding of precision parts to improve surface finish; in the automotive manufacturing industry for polishing body parts to ensure appearance quality; and in the furniture production process for fine processing of wood surfaces to make them feel smooth.

[0003] With the increasing application scenarios of wheel coated abrasives, the market's customized demands are growing day by day, and the original large-scale products cannot meet the corresponding demands efficiently and quickly. On the one hand, the batch production cost of traditional large-scale production lines is high, and it is difficult to comprehensively verify the production process in the early stage. On the other hand, there is a lack of test devices on the market that can accurately simulate actual production conditions, and it is impossible to effectively evaluate the influence of different process parameters on product performance, resulting in performance instability problems such as sand grain shedding and low grinding efficiency in actual use of the products, which seriously restricts the development of the industry and the upgrading of products. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of existing customized demands in the production of wheel coated abrasives and unstable quality and performance, and provide a test device for wheel coated abrasives, which can systematically simulate the production process, realize accurate testing and control of customized products, and thus improve product quality and production efficiency. To achieve the above purpose, the present invention adopts the following technical solutions: A test device for wheel coated abrasives includes a raw material unwinding mechanism, a glue coating mechanism, and a winding mechanism that cooperate with each other.

[0005] The raw material unwinding mechanism includes an unwinding device with an unwinding motor inside. The glue coating mechanism includes a pair of transition reels I. The raw material is received and transitioned from the outer circle of the unwinding device to the transition reels I. A pair of glue coating rollers are arranged below the side of the transition reels I. A gap adjusting device is arranged between the glue coating rollers. A glue coating nozzle is also arranged above the glue coating rollers. The glue coating nozzle is connected to a glue storage tank through a pressure pump. A transition reel II is also arranged on one side of the glue coating rollers. The winding mechanism includes a transition reel III arranged on the top of the frame. A winding motor is arranged on the frame. The output end of the winding motor is connected to a winding shaft. The coated raw material passes through between the glue coating rollers and is received by the transition reel II and the transition reel III and then transferred to the winding shaft. A pressing device is arranged directly above the winding shaft, and a sensor is arranged inside the pressing device.

[0006] Further, the unwinding motor is a variable-frequency speed-regulating motor, and its unwinding speed is 0-15 m / min, so as to ensure the smooth and uniform conveyance of the nylon cloth to the gluing process through stepless adjustment of the unwinding speed, providing a stable raw material input for subsequent operations.

[0007] Further, the basic raw material of the raw material unwinding mechanism is a nylon fiber cloth, and the thickness of the nylon fiber cloth is set to 1-30 mm.

[0008] Further, the first transition reel is respectively connected to both sides of the transition platform. The first transition reel on the side close to the raw material unwinding mechanism is matched with the unwinding device, and the first transition reel on the other side is matched with the gluing roller. The transition platform is horizontally placed, and the first transition reels on both sides are on the same horizontal line.

[0009] Further, the gluing roller includes a left gluing roller and a right gluing roller, which are on the same horizontal line. The rotating shafts of the left and right gluing rollers are connected to the gap adjustment device. The gap adjustment device includes a sliding block and a lead screw that cooperate with each other. One end of the lead screw is provided with a rotating handle for adjusting the distance between the gluing rollers by rotating the handle.

[0010] Further, the glue coating nozzle is arranged directly above the right gluing roller, and its coating amount is 0.1-2 kg / min, so as to evenly coat the prepared glue on the surface of the nylon cloth.

[0011] Further, the adjustment gap range of the gap adjustment device is 0.05-5 mm, so as to accurately extrude the excess glue according to the viscosity, solid content of the glue and the target gluing amount.

[0012] Further, the winding shaft is fixed to the frame through bearings. A tension sensor is arranged on one side of the winding shaft. The winding motor is a servo motor, and the tension on the winding shaft is maintained within the range of the set value ±1 N, so as to monitor and control the winding tension in real time.

[0013] Further, the pressing device is an electric lifting structure. The built-in sensors include a displacement sensor and a pressure sensor, and its adjustment accuracy is 0.1 mm, so as to automatically control the pressing device to perform adaptive distance lifting according to the preset pressure value and displacement change amount.

[0014] Further, the pressing device includes a lifting mechanism connected to the frame. The bottom of the lifting mechanism is connected with a pressing wheel, and the axes of the pressing wheel and the winding shaft are both on the vertical axis of the lifting mechanism.

[0015] Compared with the prior art, the advantages of the technical solution of the present invention are specifically as follows: (1) The unwinding mechanism of the present invention adopts stepless speed regulation of the unwinding speed, ensuring that the nylon cloth is smoothly and uniformly conveyed to the gluing process, providing a stable raw material input for subsequent operations; (2) The device of the present invention can not only evenly coat the prepared glue on the surface of the nylon cloth, but also precisely adjust the gap of the coating roller, and accurately extrude the excess glue according to the viscosity, solid content of the glue and the target coating amount, ensuring the product quality; (3) The present invention uses a special high-temperature resistant and highly viscous tape to firmly fix the semi-finished product coated with abrasive sand on the winding shaft, and combines a high-precision tension sensor with a closed-loop control system to monitor the winding tension in real time, effectively ensuring the uniformity of the product winding and avoiding the phenomenon of uneven tightness; (4) The present invention realizes precise testing and control of customized products by systematically simulating the production process, thereby improving product quality and production efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the test device for the wheel-type coated abrasive of the present invention. Detailed Embodiments Embodiment

[0017] To make the present invention more clear and understandable, the following further describes a test device for a wheel-type coated abrasive of the present invention in conjunction with the drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] See Figure 1 , a test device for a wheel-type coated abrasive, comprising a raw material unwinding mechanism 1, a gluing mechanism 2 and a winding mechanism 3 that cooperate with each other, characterized in that: The raw material unwinding mechanism 1 includes an unwinding device 11, and an unwinding motor 12 is arranged inside it; The gluing mechanism 2 includes a pair of transition scrolls 21, and the transition scrolls 21 are respectively connected to both sides of the transition platform 28. The transition scroll 21 on the side close to the raw material unwinding mechanism 1 cooperates with the unwinding device 11, and the transition scroll 21 on the other side cooperates with the coating roller 22. The transition platform 28 is horizontally placed, and the transition scrolls 21 on both sides are on the same horizontal line; The raw material is received and transitioned from the outer ring of the unwinding device 11 to the transition scroll 21. The coating roller 22 includes a left coating roller 22a and a right coating roller 22b, and the two are on the same horizontal line. The rotating shafts of the left and right coating rollers are connected to the gap adjusting device 23, and the gap adjusting device 23 includes a slider and a lead screw that cooperate with each other, and a rotating handle 231 is arranged at one end of the lead screw; A glue coating nozzle 24 is also provided above the glue coating roller 22, and the glue coating nozzle 24 is connected to a glue storage tank 26 through a pressure pump 25. A transition reel 27 is also provided on one side of the glue coating roller 22; The winding mechanism 3 includes a transition reel 32 disposed on the top of a frame 31, a winding motor 33 is disposed on the frame 31, a winding shaft 34 is connected to the output end of the winding motor 33, the winding shaft 34 is fixed to the frame 31 through a bearing, a tension sensor 36 is disposed on one side of the winding shaft 34, and the glued raw material passes through between the glue coating rollers 22 and is received by the transition reel 2 27 and the transition reel 3 32 to the winding shaft 34; A clamping device 35 is provided directly above the winding shaft 34. The clamping device 35 is an electric lifting structure. The built-in sensor 35a includes a displacement sensor and a pressure sensor. The clamping device 35 includes a lifting mechanism 35b connected to the frame 31. A clamping wheel 35c is connected to the bottom of the lifting mechanism 35b. The axis of the clamping wheel 35c and the axis of the winding shaft 34 are both on the vertical axis of the lifting mechanism 35b.

[0019] In this embodiment, a nylon fiber cloth that has been specially shaped is selected as the basic raw material, and the thickness of the nylon fiber cloth is precisely set to 1-30 mm. The raw material unwinding device 1 is equipped with a variable frequency speed regulating motor, which can steplessly adjust the unwinding speed within the speed range of 0-15 m / min according to the requirements of the subsequent process, ensuring that the nylon cloth is smoothly and evenly transported to the gluing process, providing stable raw material input for subsequent operations.

[0020] In this embodiment, a high-precision glue coating nozzle 24 is arranged above the glue coating roller 22. The nozzle is connected to the glue storage tank 26 through a pressure pump 25, and the prepared glue is evenly coated on the surface of the nylon cloth at a coating amount of 0.1-2 kg / min. Then, a pair of rubber extrusion rollers start working, and a high-precision gap adjustment device 23 is provided between the two rollers, which can accurately adjust the gap within the range of 0.05-5 mm, and accurately squeeze out excess glue according to the viscosity, solid content and target glue coating amount of the glue.

[0021] In this embodiment, in the initial stage of winding, a special high-temperature resistant and high-viscosity tape is used to firmly fix the semi-finished product coated with abrasive mortar on the winding shaft 34. During the winding process, a high-precision tension sensor 36 is combined with a closed-loop control system to monitor the winding tension in real time, and the winding speed is automatically adjusted by a servo motor to ensure that the tension is always stable within the range of ±1N of the set value. At the same time, the pressing device 35 adopts an electric lifting structure with a built-in displacement sensor and a pressure sensor. When each additional turn is wound, the system will automatically control the pressing device to lift adaptively according to the preset pressure value and displacement change; manual distance adjustment can also be performed through the buttons on the operation panel, with an adjustment accuracy of up to 0.1mm, effectively ensuring the uniformity of the product winding and avoiding the phenomenon of uneven tightness.

[0022] After the winding process is completed, high-strength twine is used to tightly wind the wound product with a winding tension of 0 - 100N to prevent loosening during subsequent handling, drying and other processes, and to ensure the structural stability of the product. Then, it is dried with a programmed temperature increase at 110 - 200°C. The dried product is cut in the width direction to meet the diverse market demands.

[0023] The device of the present invention is used to simulate and optimize the production process of wheel coated abrasives. By systematically simulating the production process, precise testing and control of customized products are achieved, thereby improving product quality and production efficiency.

[0024] In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A test device for a wheel-mounted coated abrasive tool, comprising a raw material unwinding mechanism (1), a glue coating mechanism (2), and a winding mechanism (3) that cooperate with each other, characterized in that: The raw material unwinding mechanism (1) includes an unwinding device (11) with an unwinding motor (12) provided inside. The glue coating mechanism (2) includes a pair of first transition rollers (21). The raw material is received and transitioned from the outer ring of the unwinding device (11) to the first transition rollers (21). A pair of glue coating rollers (22) are provided below the sides of the first transition rollers (21). A gap adjusting device (23) is provided between the glue coating rollers (22). Above the glue coating rollers (22), there is also a glue coating nozzle (24). The glue coating nozzle (24) is connected to a glue storage tank (26) through a pressure pump (25). On one side of the glue coating rollers (22), there is also a second transition roller (27). The winding mechanism (3) includes a third transition roller (32) provided at the top of the frame (31). A winding motor (33) is provided on the frame (31). The output end of the winding motor (33) is connected to a winding shaft (34). The raw material after glue coating passes through between the glue coating rollers (22) and is received by the second transition roller (27) and the third transition roller (32) and then transferred to the winding shaft (34). Above the winding shaft (34), there is a pressing device (35) with a sensor (35a) provided inside.

2. The test device for a wheel-mounted coated abrasive tool according to claim 1, characterized in that: The unwinding motor (12) is a variable-frequency speed-regulating motor, and its unwinding speed is 0 - 15 m / min.

3. The test device for a wheel-mounted coated abrasive tool according to claim 1 or 2, characterized in that: The basic raw material of the raw material unwinding mechanism (1) is a nylon fiber cloth, and the thickness of the nylon fiber cloth is set to 1 - 30 mm.

4. The test device for a wheel-mounted coated abrasive tool according to claim 1 or 2, characterized in that: The first transition rollers (21) are respectively connected to both sides of a transition platform (28). The first transition roller (21) closer to the raw material unwinding mechanism (1) cooperates with the unwinding device (11), and the first transition roller (21) on the other side cooperates with the glue coating rollers (22). The transition platform (28) is placed horizontally, and the first transition rollers (21) on both sides are on the same horizontal line.

5. The test device for a wheel-mounted coated abrasive tool according to claim 1 or 2, characterized in that: The glue coating rollers (22) include a left glue coating roller (22a) and a right glue coating roller (22b), which are on the same horizontal line. The rotating shafts of the left and right glue coating rollers are connected to the gap adjusting device (23). The gap adjusting device (23) includes a slider and a lead screw that cooperate with each other. One end of the lead screw is provided with a rotating handle (231).

6. The test device for a wheel-mounted coated abrasive tool according to claim 5, characterized in that: The glue coating nozzle (24) is provided directly above the right glue coating roller (22b), and its coating amount is 0.1 - 2 kg / min.

7. The test device for a wheel-mounted coated abrasive tool according to claim 1 or 2, characterized in that: The adjustment gap range of the gap adjusting device (23) is 0.05 - 5 mm.

8. The test device for a wheel coated abrasive according to claim 1 or 2, characterized in that: The winding shaft (34) is fixed to the frame (31) through bearings. A tension sensor (36) is provided on one side of the winding shaft (34). The winding motor (33) is a servo motor, and the tension on the winding shaft (34) is maintained within the range of the set value ±1 N.

9. The test device for a wheel coated abrasive according to claim 1 or 2, characterized in that: The pressing device (35) is an electric lifting structure. The built-in sensor (35a) includes a displacement sensor and a pressure sensor, and its adjustment accuracy is 0.1 mm.

10. The test device for a wheel coated abrasive according to claim 9, characterized in that: The pressing device (35) includes a lifting mechanism (35b) connected to the frame (31). The bottom of the lifting mechanism (35b) is connected with a pressing wheel (35c). The axes of the pressing wheel (35c) and the winding shaft (34) are both on the vertical axis of the lifting mechanism (35b).

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