Ultra-large-diameter injection molding brush disc

Abstract

The invention relates to the technical field of brush discs, in particular to a super-large-diameter injection molding brush disc which comprises a mechanical arm connected with a machine body, an inner ring is arranged at the bottom of the mechanical arm, an outer ring is arranged on the outer side of the inner ring, brush assemblies are arranged on the inner ring and the outer ring, and a transmission mechanism used for driving the brush assemblies to operate is arranged on a shell. The brush assembly comprises a plurality of first arc-shaped blocks clamped to the bottom of the outer ring, a plurality of second arc-shaped blocks clamped to the bottom of the inner ring, bristles are arranged on the first arc-shaped blocks and the second arc-shaped blocks, the transmission mechanism comprises a motor fixedly installed in the shell, the output end of the motor is fixedly connected with a connecting shaft, and the end of the connecting shaft is fixedly connected with a connector. By arranging the transmission mechanism, the self-cleaning function of the bristles is achieved, sundries wound around the roots of the bristles are efficiently stripped through cross friction of the bristles during reverse rotation of the inner ring and the outer ring, the thoroughness of cleaning can be improved, additional cleaning equipment and consumables are not needed, and damage to the bristles caused by manual cleaning is avoided.

Description

Technical Field

[0001] This invention relates to the field of brush plate technology, specifically to an ultra-large diameter injection molded brush plate. Background Technology

[0002] In municipal sanitation cleaning, industrial surface polishing, and large-scale panel cleaning, extra-large diameter brush discs have become core components due to their advantages of wide coverage and high cleaning efficiency in a single operation. Currently, the bristles of integral bristle-embedded brush discs are glued to the substrate or mechanically implanted. When local bristles wear out, break, or become entangled with debris, the damaged area cannot be replaced individually, and the entire brush disc must be scrapped, resulting in serious material waste and significantly increasing operating costs. Furthermore, the brush discs rely on external high-pressure water washing equipment, which not only increases equipment investment costs but also causes water waste and secondary pollution of wastewater. In addition, it is difficult to apply in high-dust, water-free operating scenarios. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an ultra-large diameter injection molded brush disc with the advantage of self-cleaning bristles, thus solving the problem of high cleaning costs associated with high-pressure water guns.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: An ultra-large diameter injection molding brush disc includes a robotic arm connected to a machine body. The bottom of the robotic arm is provided with an inner ring, and an outer ring is provided outside the inner ring. Brush assemblies are provided on the inner and outer rings. A housing is fixed to the robotic arm, and a transmission mechanism for driving the brush assembly is provided on the housing. The brush assembly includes multiple arc-shaped blocks 1 that are snapped onto the bottom of the outer ring, and multiple arc-shaped blocks 2 that are snapped onto the bottom of the inner ring. Both arc-shaped blocks 1 and arc-shaped blocks 2 are provided with brush bristles. The transmission mechanism includes a motor fixedly mounted inside the housing, a connecting shaft fixedly connected to the output end of the motor, a connector fixedly connected to the end of the connecting shaft, an inner ring fixedly connected to the connector, a load-bearing sleeve fixedly connected to the bottom of the robotic arm, the load-bearing sleeve being located outside the connecting shaft and not in contact with the connecting shaft, a sliding ring rotatably mounted on the load-bearing sleeve, and a connecting frame fixedly connected to the sliding ring for driving the outer ring to rotate.

[0005] Preferably, an electric telescopic rod is fixedly installed inside the outer shell, a transmission sleeve is rotatably installed on the free end of the electric telescopic rod, a spur gear one is fitted on the connecting shaft, a spur gear two is fitted on the sliding ring, two spur gears three are fitted on the transmission sleeve, a rotating shaft is rotatably installed on the robotic arm, and a spur gear four that meshes with the spur gear two is fitted on the rotating shaft.

[0006] Preferably, both sides of the inner ring are fixedly connected to limit frames, and inserts are slidably connected to the limit frames. Limit grooves are opened on both sides of the connecting frame, and the ends of the inserts are inserted into the adjacent limit grooves. Locking screws are threadedly connected between the limit frames and the corresponding inserts.

[0007] Preferably, both the first and second arc-shaped blocks are fixedly connected with threaded rods, and multiple threaded rods are respectively inserted into the outer ring and the inner ring through holes, with locking sleeves threaded onto the threaded rods.

[0008] Preferably, the bristles on the arc-shaped block are distributed in a radial gradient, with the bristle density near the outer ring edge being higher than that near the inner ring.

[0009] Preferably, the bristle density on the second arc-shaped block is uniformly distributed, and the density value is consistent with the bristle density on the side of the first arc-shaped block near the inner ring.

[0010] Preferably, the material of the first and second arc-shaped blocks is PA66 reinforced with 15%-20% glass fiber.

[0011] Preferably, multiple arc-shaped blocks are evenly distributed in a ring, with the splicing gap between adjacent arc-shaped blocks ≤0.5mm; multiple arc-shaped blocks are evenly distributed in a ring, with the splicing gap between adjacent arc-shaped blocks ≤0.5mm.

[0012] Preferably, the outer casing has a plurality of circumferentially evenly distributed heat dissipation holes on its peripheral wall, and the diameter of the heat dissipation holes is 5-8mm.

[0013] By employing the above technical solution, the present invention provides an ultra-large diameter injection molding brush disk, which has at least the following beneficial effects: 1. This extra-large diameter injection-molded brush disc, through the setting of a transmission mechanism, realizes the self-cleaning function of the bristles. By utilizing the cross friction of the bristles when the inner and outer rings rotate in opposite directions, it can efficiently remove the debris wrapped around the base of the bristles, which can improve the thoroughness of cleaning. Moreover, no additional cleaning equipment and consumables are required, avoiding damage to the bristles caused by manual cleaning and extending the service life of the bristles.

[0014] 2. This extra-large diameter injection-molded brush disc allows for the individual replacement of the arc-shaped blocks. When the bristles in a part wear out, there is no need to replace the entire brush disc, which greatly reduces maintenance costs and waste of consumables. At the same time, the modular arc-shaped block design can be flexibly matched with bristles of different densities and materials to adapt to a variety of cleaning operation scenarios.

[0015] 3. The extra-large diameter injection-molded brush disc makes the bristle density near the outer ring edge higher than that on the inner ring side, effectively dispersing the stress load on the edge bristles, slowing down the wear rate, improving the overall wear uniformity of the brush disc, and ensuring consistent cleaning effect throughout the entire area.

[0016] 4. This extra-large diameter injection molded brush disc can quickly achieve synchronous / independent state switching between the inner and outer rings without disassembling complex parts. It can be operated by a single person, greatly shortening the mode switching time and improving operation and maintenance efficiency.

[0017] 5. The material of the extra-large diameter injection molded brush disc, arc block one and arc block two are made of PA66 reinforced with 15%-20% glass fiber, which can effectively resist the centrifugal force generated when the extra-large diameter brush disc rotates at high speed and the impact force during operation, avoiding problems such as warping and breakage of the arc blocks, and ensuring the long-term stable operation of the brush disc. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the external connection structure of arc-shaped block one and arc-shaped block two of the present invention; Figure 4 This is a schematic diagram of the external connection structure of the inner ring of the present invention; Figure 5 This is a schematic diagram of the transmission mechanism of the present invention.

[0019] Figure label: 100. Outer ring; 101. Inner ring; 102. Outer shell; 103. Robotic arm; 200. Transmission mechanism; 201. Motor; 202. Electric telescopic rod; 203. Sliding ring; 204. Load-bearing sleeve; 205. Spur gear one; 206. Spur gear two; 207. Connecting shaft; 208. Connector; 209. Transmission sleeve; 210. Spur gear three; 211. Heat dissipation hole; 212. Rotating shaft; 213. Spur gear four; 300. Brush assembly; 301. Arc block one; 302. Arc block two; 303. Brush bristles; 304. Connecting frame; 305. Limiting groove; 306. Limiting frame; 307. Insert strip; 308. Locking screw; 309. Threaded rod; 310. Locking sleeve. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an ultra-large diameter injection molding brush disc.

[0022] Example 1: Combination Figures 1-5 As shown, this embodiment provides an ultra-large diameter injection molding brush disc, including a robotic arm 103 connected to the machine body. The bottom of the robotic arm 103 is provided with an inner ring 101, and the outer ring 100 is provided on the outside of the inner ring 101. Brush assemblies 300 are provided on the inner ring 101 and the outer ring 100. A housing 102 is fixedly connected to the robotic arm 103. The housing 102 is provided with a transmission mechanism 200 for driving the brush assembly 300 to run. When the inner and outer rings 100 rotate in opposite directions, active cross friction is formed between the bristles 303, which can directly act on the roots of the bristles 303, efficiently removing tangled hair, debris, dust and other impurities. Compared with manual cleaning, it is more thorough and solves the problem of "difficulty in removing dirt from the roots of the bristles 303". At the same time, all bristles 303 participate in friction cleaning, with no blind spots, which is beneficial to cleaning efficiency. The brush assembly 300 includes multiple arc-shaped blocks 301 that are snapped onto the bottom of the outer ring 100, and multiple arc-shaped blocks 302 that are snapped onto the bottom of the inner ring 101. Both the arc-shaped blocks 301 and the arc-shaped blocks 302 are provided with bristles 303. The arc-shaped blocks 301 and the arc-shaped blocks 302 are snapped onto the outer and inner rings 101 respectively. When the bristles 303 are worn, only the corresponding arc-shaped blocks need to be replaced, without the need to replace the entire brush disc, thus reducing maintenance costs and waste of consumables and improving resource utilization. The transmission mechanism 200 includes a motor 201 fixedly mounted inside the housing 102. A connecting shaft 207 is fixedly connected to the output end of the motor 201. A connector 208 is fixedly connected to the end of the connecting shaft 207. An inner ring 101 is fixedly connected to the connector 208. A load-bearing sleeve 204 is fixedly connected to the bottom of the robotic arm 103. The load-bearing sleeve 204 is located outside the connecting shaft 207 and does not contact the connecting shaft 207. A sliding ring 203 is rotatably mounted on the load-bearing sleeve 204. A device for driving the outer ring 101 is fixedly connected to the sliding ring 203. The connecting frame 304 rotates, and the motor 201 drives the connecting shaft 207 to rotate. The rotation of the connecting shaft 207 drives the connecting head 208 to rotate. The inner ring 101 rotates with the connecting head 208, and the insert 307 is inserted into the slot and engages with the connecting frame 304. Then, the rotation of the inner ring 101 drives the outer ring 100 to rotate. The brush bristles 303 can be self-cleaned without disassembling the brush disc, which solves the problems of traditional brush discs where the brush bristles 303 are entangled with debris, accumulate dirt and are cumbersome to clean, and are easily damaged.

[0023] Specifically, an electric telescopic rod 202 is fixedly installed inside the outer casing 102. A transmission sleeve 209 is rotatably mounted on the free end of the electric telescopic rod 202. A spur gear 205 is fitted on the connecting shaft 207. A spur gear 206 is fitted on the sliding ring 203. Two spur gears 210 are fitted on the transmission sleeve 209. A rotating shaft 212 is rotatably mounted on the robotic arm 103. A spur gear 213 that meshes with the spur gear 206 is fitted on the rotating shaft 212. When it is necessary to clean the bristles 303, the insert 307 is removed, so that the inner ring 101 and the outer ring 100 remain in an independent state. At this time, the outer ring 100 and the inner ring 101 are rotated to the initial state. The free end of the electric telescopic rod 202 descends, causing the transmission sleeve 209 to descend. The two spur gears 210 on the transmission sleeve 209 respectively mesh with the spur gear 205. 5. The spur gear 4 213 meshes with the motor 201, which drives the spur gear 1 205 on the connecting shaft 207 to rotate. The spur gear 1 205 drives the transmission sleeve 209 on the spur gear 3 210 on one side to rotate. The transmission sleeve 209 drives the spur gear 4 213 to rotate through the spur gear 3 210. The spur gear 4 213 drives the spur gear 2 206 to rotate, which in turn drives the sliding ring 203 to rotate. At this time, the sliding ring 203 and the connecting shaft 207 rotate in opposite directions, thereby driving the outer ring 100 and the inner ring 101 to rotate respectively, so that the bristles 303 on the inner and outer sides come into contact and perform self-cleaning. By using the mutual friction between the inner and outer bristles 303, the hair, debris and other debris wrapped around the roots of the bristles 303 are efficiently removed, improving the thoroughness of cleaning by more than 60%, and avoiding the bristles 303 from lying down or breaking due to manual cleaning.

[0024] As can be seen from the embodiments, the disassembly and assembly process of the brush plate is simplified. No large auxiliary equipment is required, and a single person can complete the replacement or maintenance of the arc block, which significantly improves the equipment maintenance efficiency and reduces downtime.

[0025] Example 2: Combination Figure 3 and Figure 5 As shown, based on Embodiment 1, both sides of the inner ring 101 are fixedly connected to limit frames 306, and inserts 307 are slidably connected to the limit frames 306. Limit grooves 305 are opened on both sides of the connecting frame 304. The end of the insert 307 is inserted into the adjacent limit groove 305. A locking screw 308 is threaded between the limit frame 306 and the corresponding insert 307. Rotating the locking screw 308 makes it disengage from the limit frame 306, and then removing the insert 307 can unlock the outer ring 100, allowing it to rotate independently. Conversely, during normal use, the outer ring 100 and the inner ring 101 are fixed. There is no need to disassemble complex parts, and a single person can complete the mode switching, which greatly shortens the switching time between synchronous operation and self-cleaning mode.

[0026] Specifically, threaded rods 309 are fixedly connected to both arc-shaped block 1 301 and arc-shaped block 2 302. Multiple threaded rods 309 are inserted into the outer ring 100 and inner ring 101 through holes respectively. Locking sleeves 310 are threadedly connected to the threaded rods 309. When the bristles 303 on a single arc-shaped block 1 301 and arc-shaped block 2 302 are damaged, the locking sleeves 310 are rotated to disengage them from the threaded rods 309, allowing the corresponding bristles 303 to be replaced without replacing the entire brush disc assembly. This significantly reduces maintenance costs and consumable waste, and can reduce costs compared to traditional integral brush discs.

[0027] Furthermore, the bristles 303 on the arc-shaped block 301 are distributed in a gradient along the radial direction. The density of bristles 303 near the edge of the outer ring 100 is higher than that near the inner ring 101. By increasing the number of bristles 303, the stress load on a single bristle 303 is dispersed, effectively slowing down the wear rate of the edge bristles 303 and improving the overall wear uniformity of the brush disc.

[0028] The bristles 303 on the second arc-shaped block 302 are evenly distributed in density, and the density value is the same as that of the bristles 303 on the side of the first arc-shaped block 301 near the inner ring 101. This avoids cleaning blind spots caused by rapid wear of the edge bristles 303 and ensures consistent operation effect across the entire area of ​​the ultra-large diameter brush disc.

[0029] Example 3: Combination Figure 2 As shown, based on Example 1, the material of Arc Block 1 301 and Arc Block 2 302 is PA66 reinforced with 15%-20% glass fiber, which can effectively resist the centrifugal force generated when the ultra-large diameter brush disk rotates at high speed and the impact force during operation, avoid problems such as warping and breakage of the arc blocks, and ensure the long-term stable operation of the brush disk.

[0030] Specifically, multiple arc-shaped blocks 301 are evenly distributed in a ring, with the splicing gap between adjacent arc-shaped blocks 301 ≤ 0.5mm. Similarly, multiple arc-shaped blocks 302 are evenly distributed in a ring, with the splicing gap between adjacent arc-shaped blocks 302 ≤ 0.5mm. This effectively prevents dust, debris, sewage, and other impurities from embedding into the gaps during operation, avoiding jamming or wear of the arc-shaped blocks due to debris accumulation. It also reduces cleaning dead angles in the gaps, further improving the cleanliness of the operation.

[0031] Furthermore, the outer casing 102 has multiple circumferentially evenly distributed heat dissipation holes 211 on its peripheral wall. The diameter of the heat dissipation holes 211 is 5-8mm to ensure airflow and meet heat dissipation requirements. At the same time, the hole diameter can effectively block large particles of dust and debris from entering the interior of the outer casing 102.

[0032] As can be seen from the above embodiments: after the equipment is started, the motor 201 drives the connecting shaft 207 to rotate. The connecting shaft 207 drives the inner ring 101 to rotate through the connector 208. Since the inner ring 101 and the outer ring 100 are in a locked state, the inner ring 101 drives the outer ring 100 to rotate synchronously through the snap-fit ​​cooperation between the insert 307 and the connecting frame 304. The bristles 303 on the arc-shaped block 1 301 and arc-shaped block 2 302 clean the working surface as the inner and outer rings 100 rotate. When it is necessary to self-clean the bristles 303, first stop the machine and rotate the inner and outer rings 100 to the initial state. Rotate the locking screw 308 to make it disengage from the limit frame 306. Then remove the insert 307 to make the inner ring 101 and the outer ring 100 independent. Start the electric telescopic rod 202. Its free end descends, driving the transmission sleeve 209 to descend, so that the two spur gears 321 on the transmission sleeve 209... The 0 gears mesh with the spur gear 205 on the connecting shaft 207 and the spur gear 213 on the rotating shaft 212 respectively. The motor 201 is restarted, and the motor 201 drives the connecting shaft 207 and the spur gear 205 to rotate. The spur gear 205 drives the transmission sleeve 209 to rotate through the spur gear 210 on one side. The transmission sleeve 209 drives the spur gear 213 to rotate through the spur gear 210 on the other side. The spur gear 213 drives the spur gear 206 and the sliding ring 203 to rotate in the opposite direction, thereby driving the outer ring 100 and the inner ring 101 to rotate in the opposite direction. This causes the bristles 303 on both the inner and outer sides to rub against each other to achieve self-cleaning. After cleaning is complete, the motor 201 is turned off, and the electric telescopic rod 202 drives the transmission sleeve 209 to reset. The insert 307 is reinserted into the limiting groove 305 and locked by the locking screw 308, restoring the inner and outer rings 100 to a synchronized state for subsequent operations.

[0033] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-large diameter injection molding brush, comprising a robotic arm (103) connected to a machine body, characterized in that: The robotic arm (103) has an inner ring (101) at the bottom and an outer ring (100) on the outside of the inner ring (101). A brush assembly (300) is provided on the inner ring (101) and the outer ring (100). A housing (102) is fixedly connected to the robotic arm (103). A transmission mechanism (200) for driving the brush assembly (300) is provided on the housing (102). The brush assembly (300) includes multiple arc-shaped blocks (301) snapped onto the bottom of the outer ring (100), and multiple arc-shaped blocks (302) snapped onto the bottom of the inner ring (101). Both the arc-shaped blocks (301) and the arc-shaped blocks (302) are provided with bristles (303). The transmission mechanism (200) includes a motor (201) fixedly mounted in the housing (102). The output end of the motor (201) is fixedly connected to a connecting shaft (207). The end of the connecting shaft (207) is fixedly connected to a connector (208). The inner ring (101) is fixedly connected to the connector (208). The bottom of the robotic arm (103) is fixedly connected to a load-bearing sleeve (204). The load-bearing sleeve (204) is located outside the connecting shaft (207) and does not contact the connecting shaft (207). A sliding ring (203) is rotatably mounted on the load-bearing sleeve (204). A connecting frame (304) for driving the outer ring (100) to rotate is fixedly connected to the sliding ring (203).

2. The ultra-large diameter injection molding brush disc according to claim 1, characterized in that: An electric telescopic rod (202) is fixedly installed inside the outer shell (102). A transmission sleeve (209) is rotatably installed on the free end of the electric telescopic rod (202). A spur gear one (205) is fitted on the connecting shaft (207). A spur gear two (206) is fitted on the sliding ring (203). Two spur gears three (210) are fitted on the transmission sleeve (209). A rotating shaft (212) is rotatably installed on the robotic arm (103). A spur gear four (213) that meshes with the spur gear two (206) is fitted on the rotating shaft (212).

3. The ultra-large diameter injection molded brush disc according to claim 1, characterized in that: Both sides of the inner ring (101) are fixed with a limiting frame (306), and a strip (307) is slidably connected on the limiting frame (306). Both sides of the connecting frame (304) are provided with limiting grooves (305). The end of the strip (307) is inserted into the adjacent limiting groove (305). A locking screw (308) is threaded between the limiting frame (306) and the corresponding strip (307).

4. The ultra-large diameter injection molding brush disc according to claim 1, characterized in that: Both the first arc block (301) and the second arc block (302) are fixed with threaded rods (309). Multiple threaded rods (309) are inserted into the outer ring (100) and the inner ring (101) through holes respectively. Locking sleeves (310) are threadedly connected to the threaded rods (309).

5. The ultra-large diameter injection molding brush disc according to claim 1, characterized in that: The bristles (303) on the arc-shaped block (301) are distributed in a gradient along the radial direction, and the bristle (303) density near the edge of the outer ring (100) is higher than that near the inner ring (101).

6. The ultra-large diameter injection molding brush disc according to claim 1, characterized in that: The bristles (303) on the second arc block (302) are evenly distributed, and the density value is consistent with the bristle (303) density on the side of the first arc block (301) near the inner ring (101).

7. The ultra-large diameter injection molded brush disc according to claim 1, characterized in that: The material of the arc-shaped block one (301) and arc-shaped block two (302) is PA66 reinforced with 15%-20% glass fiber.

8. The ultra-large diameter injection molding brush disc according to claim 1, characterized in that: Multiple arc-shaped blocks (301) are evenly distributed in a ring, and the splicing gap between adjacent arc-shaped blocks (301) is ≤0.5mm. Multiple arc-shaped blocks (302) are evenly distributed in a ring, and the splicing gap between adjacent arc-shaped blocks (302) is ≤0.5mm.

9. The ultra-large diameter injection molded brush disc according to claim 1, characterized in that: The outer shell (102) has a plurality of circumferentially evenly distributed heat dissipation holes (211) on its peripheral wall, and the diameter of the heat dissipation holes (211) is 5-8mm.

Images