Automatic feeding and discharging mechanism for rubber roller grinding machine

Abstract

The utility model discloses an automatic feeding and discharging mechanism for rubber roll grinding and polishing machine, including the machine case, the progressive conveying mechanism, the pushing mechanism, the linear displacement mechanism, the grabbing mechanism and the discharging assembly. The progressive conveying mechanism is installed on the machine case, and the pushing mechanism is installed on the end of progressive conveying mechanism. The grabbing mechanism is installed on the linear displacement mechanism, and the discharging assembly is located above the progressive conveying mechanism. After the completed rubber roll is grabbed by the grabbing mechanism, the rubber roll is sent to the discharging assembly, and the discharging is realized through the discharging assembly. After the rubber roll is sent to the end and reaches the waiting grabbing position, the rubber roll is pushed out upward through the pushing mechanism, so that the rubber roll is separated from the progressive conveying mechanism, thereby exposing most of the area of the rubber roll and reducing the influence of the progressive conveying mechanism on the grabbing work, so that the grabbing mechanism can grab.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, specifically to an automatic loading and unloading mechanism for a rubber roller grinding machine. Background Technology

[0002] Paper feed rollers are key components in printing equipment for conveying paper. The manufacturing process of paper feed rollers typically includes: rubber mixing, core lamination, vulcanization molding, outer diameter precision grinding, length cutting, and end face treatment. Among these, outer diameter precision grinding and length cutting are crucial processes to ensure the accuracy of the roller's outer diameter, concentricity, surface finish, and length dimensions.

[0003] The mainstream processing method involves first precision grinding the rough-machined rubber roller blank on an external cylindrical grinder, and then slitting it by a cutting mechanism. Both precision grinding and slitting require loading and unloading the rubber rollers. Current loading and unloading methods mainly suffer from the following problems: (1) After the rubber roller is conveyed to the end by the conveying device, it is necessary to use the gripping device to grip the rubber roller on the conveying device. However, since the rubber roller is still on the conveying device and the rubber roller to be gripped is not pushed upward, the conveying device can easily hinder the gripping work and affect the gripping.

[0004] (2) Only one set of gripping devices is set up. When loading, the gripping device first grabs the rubber roller on the conveyor device and then sends the rubber roller to the processing position to realize loading. After processing, the gripping device grabs the processed rubber roller to realize unloading. It is not possible to grip the rubber roller of the conveyor device and the processing position at the same time. Multiple gripping is required between loading and unloading, which results in more process time and low production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic loading and unloading mechanism for a rubber roller grinding machine, which can stably transport rubber rollers and has high loading and unloading efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: An automatic loading and unloading mechanism for a rubber roller grinding machine includes a machine housing, a progressive conveying mechanism, a pushing mechanism, a linear displacement mechanism, a gripping mechanism, and a loading assembly.

[0007] The progressive conveying mechanism is mounted on the chassis. The pushing mechanism is mounted at the end of the progressive conveying mechanism. The pushing mechanism includes a first cylinder mounted at the end of the progressive conveying mechanism and a lifting plate connected to the telescopic end of the first cylinder. The lifting plate is U-shaped, and its top surfaces at both ends are provided with positioning grooves. The pushing mechanism pushes the rubber roller conveyed at the end of the progressive conveying mechanism upward. The linear displacement mechanism is mounted on the chassis and located on one side of the progressive conveying mechanism.

[0008] The gripping mechanism is mounted on the linear displacement mechanism. The gripping mechanism includes a second cylinder, a lifting seat, parallel finger cylinders, and clamping plates. The second cylinder is vertically mounted on the linear displacement mechanism. The extension end of the second cylinder is connected to the lifting seat. Two parallel finger cylinders are mounted side by side on the bottom surface of the lifting seat. U-shaped clamping plates are connected to the two grippers of the parallel finger cylinders. The opposite surfaces of the two clamping plates of the same parallel finger cylinder are provided with arc-shaped clamping grooves. When the parallel finger cylinders work, they can drive the two clamping plates to move relative to each other, thereby clamping the positioning rods at both ends of the rubber roller through the clamping grooves. The unloading component is located above the progressive conveying mechanism. After the processing of the rubber roller is grasped by the gripping mechanism, the rubber roller is sent to the unloading component, and the unloading component realizes the unloading.

[0009] Preferably, the progressive conveying mechanism includes a third cylinder, an outer gear plate, a first bracket, and an inner gear plate. The outer gear plate is mounted on the chassis via multiple first brackets. Multiple third cylinders are also mounted on the chassis. The inner gear plate is located inside the outer gear plate. The bottom surface of the outer gear plate has multiple through holes corresponding to the third cylinders. The telescopic ends of the third cylinders pass through the corresponding through holes and are connected to the inner gear plate. Both the outer and inner gear plates have triangular teeth on both sides. The side of the teeth facing the pushing mechanism is a vertical side, and the other side is a downwardly sloping side. The teeth on the inner and outer gear plates are staggered, with the teeth on the inner gear plate located below the teeth on the outer gear plate. The first cylinder is mounted on the bottom surface of the end of the outer gear plate via a second bracket. Before processing the rubber roller, a positioning rod needs to be inserted into the center of the rubber roller, with both ends of the positioning rod protruding from the rubber roller. Then, place both ends of the rubber roller into the teeth of the outer toothed disc one by one. Through the extension of the third cylinder, the inner toothed disc is driven to rise. The rubber roller is pushed through the teeth on the inner toothed disc, so that the rubber roller slides along the teeth of the outer toothed disc to the next tooth, thereby realizing the advancement of the rubber roller.

[0010] Preferably, the linear displacement mechanism includes a third support, a lead screw drive, and a slide. The third support is mounted on one side of the chassis, the lead screw drive is mounted on the upper end of the third support, the slide is driven to the lead screw drive, and the second cylinder is mounted on the slide. Through the operation of the lead screw drive, the slide can be moved above the progressive conveying mechanism, thereby adjusting the position of the gripping mechanism.

[0011] Preferably, the unloading assembly includes a fourth bracket, an unloading plate, and a baffle. There are two fourth brackets, fixed to opposite sides of the machine housing. The progressive conveying mechanism is located between the two fourth brackets. The unloading plate is fixed to the two fourth brackets and positioned above the progressive conveying mechanism. The end of the unloading plate furthest from the pushing mechanism is inclined downwards, and a baffle is connected to the inclined end. After the rubber roller is processed, the gripping mechanism grips the processed rubber roller and sends it to the unloading plate. The rubber roller slides downwards along the unloading plate and is eventually stopped by the baffle, allowing the worker to remove it, thus achieving unloading.

[0012] Preferably, the third bracket is equipped with a transmitter, which is aligned with the central axis of the pushing mechanism. A receiver is located on the side wall of the parallel finger cylinder near the pushing mechanism to receive signals emitted by the transmitter. When the lead screw drive is working, it drives the slide table to move. At this time, the transmitter emits infrared light. When the receiver receives the infrared signal, it indicates that the parallel finger cylinder near the pushing mechanism is aligned with the pushing mechanism, thus facilitating the gripping mechanism to grip the rubber roller on the pushing mechanism.

[0013] Preferably, the third bracket is equipped with a distance sensor opposite to the slide table for sensing the distance of the slide table. When the slide table moves towards the distance sensor, the lead screw drive stops working after the distance between the slide table and the distance sensor reaches a set value, at which point the processed rubber roller reaches above the unloading plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The rubber rollers can be conveyed forward one by one through the progressive conveying mechanism, and the rubber rollers are not easy to deviate, slide or roll, which improves the stability of the rubber roller conveying.

[0015] (2) After the rubber roller is sent to the end and reaches the gripping position, the rubber roller is pushed upward by the pushing mechanism to make it leave the progressive conveying mechanism, thereby exposing most of the area of ​​the rubber roller, reducing the impact of the progressive conveying mechanism on the gripping operation, so that the gripping mechanism can grip it.

[0016] (3) After the rubber roller is processed at the processing position, the second cylinder extends and drives the lifting seat to descend. At this time, a set of parallel finger cylinders grabs the processed rubber roller, while another set of parallel finger cylinders grabs the rubber roller on the pushing mechanism. This allows the unprocessed rubber roller and the processed rubber roller to be grabbed at the same time, reducing the number of grabs and improving the efficiency of loading and unloading. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of another direction of the present invention; Figure 3 This is a schematic diagram of the feeding mechanism; Figure 4 This is a schematic diagram of the present invention applied to a grinding machine; In the diagram: 1-Chassis, 2-Progressive conveying mechanism, 201-Third cylinder, 202-Outer gear plate, 203-First bracket, 204-Inner gear plate, 205-Gear, 3-Pushing mechanism, 301-First cylinder, 302-Lifting plate, 303-Positioning groove, 304-Second bracket, 4-Linear displacement mechanism, 401-Third bracket, 402-Screw drive unit, 403-Slide table, 5-Gripping mechanism, 501-Second cylinder, 502-Lifting seat, 503-Parallel finger cylinder, 504-Clamping plate, 505-Clamping groove, 6-Unloading assembly, 601-Fourth bracket, 602-Unloading plate, 603-Baffle, 7-Transmitter, 8-Distance sensor, 9-Positioning unit, 10-Grinding unit, 11-Slitting unit, 12-Glue roller, 13-Positioning rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 An automatic loading and unloading mechanism for a rubber roller grinding machine includes a machine housing 1, a progressive conveying mechanism 2, a pushing mechanism 3, a linear displacement mechanism 4, a gripping mechanism 5, and a unloading component 6.

[0020] The progressive conveying mechanism 2 is mounted on the housing 1. The progressive conveying mechanism 2 includes a third cylinder 201, an outer gear plate 202, a first bracket 203, and an inner gear plate 204. The outer gear plate 202 is mounted on the housing 1 via multiple first brackets 203. There are multiple third cylinders 201, all of which are mounted on the housing 1. The inner gear plate 204 is located inside the outer gear plate 202. The bottom surface of the outer gear plate 202 has multiple through holes corresponding to the third cylinders 201. The telescopic ends of the third cylinders 201 pass through the corresponding through holes and are connected to the inner gear plate 204. Both sides of the outer gear plate 202 and the inner gear plate 204 are provided with triangular toothed edges 205. The side of the toothed edge 205 facing the pushing mechanism 3 is a vertical side, and the other side is a downward sloping side. The toothed edges on the inner gear plate 204 and the outer gear plate 202 are staggered, and the toothed edges on the inner gear plate are located below the toothed edges on the outer gear plate. Before processing the rubber rollers, a positioning rod 13 needs to be inserted into the center of the rubber roller 12, with both ends of the positioning rod 13 protruding from the rubber roller. Then, the positioning rods 13 protruding from both ends of the rubber rollers are placed one by one into the toothed openings 205 of the outer gear plate 202. By extending the third cylinder 201, the inner gear plate 204 is driven to rise, and the positioning rods 13 are pushed through the toothed openings 205 on the inner gear plate, causing the rubber rollers to slide forward along the toothed openings of the outer gear plate, thereby realizing the progressive conveying of the rubber rollers.

[0021] The pushing mechanism 3 is installed at the end of the progressive conveying mechanism 2. The pushing mechanism 3 includes a first cylinder 301 mounted on the bottom surface of the end of the outer gear disc via a second bracket 304, and a lifting plate 302 connected to the telescopic end of the first cylinder. The lifting plate 302 is U-shaped, and its top surfaces at both ends are provided with positioning grooves 303. The pushing mechanism 3 pushes the rubber roller conveyed at the end of the progressive conveying mechanism 2 upward. When the rubber roller reaches the last tooth 205 of the outer gear disc 202, the top surface of the lifting plate 302 aligns with the tooth 205 of the outer gear disc. After the inner gear disc 204 rises and pushes the rubber roller out, it slides directly into the positioning groove 303. Then, the first cylinder 301 is extended, driving the lifting plate 302 to rise, thereby pushing the rubber roller upward.

[0022] The linear displacement mechanism 4 is mounted on the housing 1 and located on one side of the progressive conveying mechanism 2. The linear displacement mechanism 4 includes a third support 401, a lead screw drive 402, and a slide 403. The third support 401 is mounted on one side of the housing 1, the lead screw drive 402 is mounted on the upper end of the third support 401, and the slide 403 is drively connected to the lead screw drive 402. A second cylinder 501 is mounted on the slide 403. Through the operation of the lead screw drive 402, the slide 403 is driven to move above the progressive conveying mechanism 2, thereby adjusting the position of the gripping mechanism 5. The lead screw transmission unit described in this utility model is existing technology. It includes a servo motor, a lead screw, and a nut seat. Both the servo motor and the lead screw are mounted on a third bracket. The servo motor is connected to the lead screw via a transmission connection. The nut seat is threadedly connected to the lead screw. The nut seat is mounted on a slide table. A slider is provided on the slide table 403 and is slidably connected to a groove on the third bracket 401 via the slider. When the servo motor works, it drives the lead screw to rotate, which in turn drives the slide table to make linear motion.

[0023] The gripping mechanism 5 is mounted on the linear displacement mechanism 4. The gripping mechanism 5 includes a second cylinder 501, a lifting seat 502, parallel finger cylinders 503, and clamping plates 504. The second cylinder 501 is vertically mounted on the linear displacement mechanism 4. The telescopic end of the second cylinder 501 is connected to the lifting seat 502. Two parallel finger cylinders 503 are mounted side-by-side on the bottom surface of the lifting seat 502. U-shaped clamping plates 504 are connected to the two grippers of each parallel finger cylinder 503. The opposing surfaces of the two clamping plates 504 of the same parallel finger cylinder 503 are provided with arc-shaped clamping grooves 505. When the parallel finger cylinders 503 operate, they drive the two clamping plates 504 to move relative to each other, thereby clamping the positioning rods 12 at both ends of the rubber roller through the clamping grooves 505. By setting up two sets of parallel finger cylinders, when one set of parallel finger cylinders grabs the processed rubber roller, the other set of parallel finger cylinders grabs the rubber roller on the lifting plate 302, so that the rubber roller to be processed and the processed rubber roller can be grabbed at the same time, reducing the number of grabbing times and improving the efficiency of loading and unloading.

[0024] In addition, to prevent the pushing mechanism from affecting the positioning and processing of the rubber roller, the pushing mechanism needs to maintain a sufficiently long distance from the positioning part. This distance can be customized according to the actual size and position of the processing equipment. Therefore, the distance between the two sets of parallel finger cylinders 503 also needs to be long enough so that one set is aligned with the pushing mechanism 3 and the other set is aligned with the positioning part 9.

[0025] The unloading assembly 6 is located above the progressive conveying mechanism 2. The unloading assembly 6 includes a fourth support 601, an unloading plate 602, and a baffle 603. There are two fourth supports 601, fixed to opposite sides of the housing 1. The progressive conveying mechanism 2 is located between the two fourth supports 601. The unloading plate 602 is fixed to the two fourth supports 601 and located above the progressive conveying mechanism 2. The end of the unloading plate 602 furthest from the pushing mechanism is inclined downwards, and the inclined end is connected to the baffle 603. After the rubber roller is processed, the gripping mechanism 5 grips the processed rubber roller and sends it to the unloading plate 602. The rubber roller slides downwards along the unloading plate 602 and is eventually blocked by the baffle 603, then removed by the worker, thus achieving unloading.

[0026] The third support 401 is equipped with a transmitter 7, which is aligned with the central axis of the pushing mechanism 3. A receiver (not shown in the attached diagram) is located on the side wall of the parallel finger cylinder 503 near the pushing mechanism 3 to receive signals emitted by the transmitter 7. When the lead screw drive 402 operates, it drives the slide 403 to move. At this time, the transmitter 7 emits infrared rays. When the receiver receives the infrared signal, it indicates that the parallel finger cylinder 503 near the pushing mechanism is aligned with the pushing mechanism 3, thus facilitating the gripping mechanism 5 to grip the rubber roller on the pushing mechanism 3. When one set of parallel finger cylinders is aligned with the pushing mechanism, the other set of parallel finger cylinders is positioned directly above the positioning part.

[0027] The third support 401 is equipped with a distance sensor 8 opposite to the slide table, used to sense the distance between the slide table 403 and the distance sensor 8. When the slide table 403 moves towards the distance sensor 8, and the distance between the slide table 403 and the distance sensor 8 reaches a set value, the lead screw drive unit 402 stops working. At this time, the processed rubber roller reaches above the unloading plate 602, which facilitates the placement of the rubber roller on the unloading plate. When the slide table moves away from the distance sensor 8, and the distance between the slide table 403 and the distance sensor reaches a set value, the lead screw drive unit stops working. At this time, the newly gripped rubber roller reaches above the positioning unit 9.

[0028] In addition, such as Figure 4 As shown, this utility model is applied to a grinding machine, which also needs to be equipped with an air compressor to provide power to each cylinder. Furthermore, the aforementioned progressive conveying mechanism, linear displacement mechanism, gripping mechanism, transmitter, receiver, and distance sensor all need to be connected to the grinding machine's main control system. Each component transmits its working signals to the main control system, which then controls the operation of each component in a unified manner.

[0029] The working principle of this utility model is as follows: The rubber roller 12 is fitted onto the positioning rod 13 with an interference fit. Then, the positioning rods 13 protruding from both ends of the rubber roller are placed into the toothed openings 205 of the outer gear plate 202 one by one. By extending the third cylinder 201, the inner gear plate 204 is driven to rise. The positioning rods 13 are pushed through the toothed openings 205 on the inner gear plate, causing the rubber roller to slide along the toothed openings of the outer gear plate to the next toothed opening, thus realizing the progressive conveying of the rubber roller.

[0030] After the rubber roller is delivered to the end and reaches the gripping position, it is pushed upward by the pushing mechanism 3, causing it to leave the advancing conveying mechanism 2, thus exposing most of the roller's area. Then, the second cylinder 501 is extended, driving the lifting seat 502 to descend. A set of parallel finger cylinders 503 grip the rubber roller, and then the lead screw drive 402 drives the roller forward, bringing it to the positioning part 9. The positioning part 9 then fixes the roller, and the roller is then processed by the grinding part 10 and the slitting part 11. During the processing, the gripping mechanism 5 returns to the initial position.

[0031] After processing, the second cylinder 501 extends, causing the lifting seat 502 to descend. At this time, a set of parallel finger cylinders 503 grips the rubber roller on the positioning part 9, while another set of parallel finger cylinders grips the rubber roller on the pushing mechanism 3, achieving simultaneous gripping. Then, the screw drive unit drives the gripping mechanism 5 forward, first placing the new rubber roller on the positioning part 9. Then, the screw drive unit drives the gripping mechanism 5 backward, placing the processed rubber roller on the unloading plate 602, completing the unloading.

[0032] 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic loading and unloading mechanism for a rubber roller grinding machine, characterized in that, include: Chassis (1); A progressive conveying mechanism (2) is installed on the chassis (1); The pushing mechanism (3) is installed at the end of the progressive conveying mechanism (2); the pushing mechanism (3) includes a first cylinder (301) installed at the end of the progressive conveying mechanism (2) and a lifting plate (302) connected to the telescopic end of the first cylinder. The lifting plate (302) is U-shaped and has positioning grooves (303) on the top surface at both ends. The pushing mechanism (3) pushes the rubber roller conveyed at the end of the progressive conveying mechanism (2) upward. A linear displacement mechanism (4) is mounted on the chassis (1) and located on one side of the progressive conveying mechanism (2); A gripping mechanism (5) is installed on a linear displacement mechanism (4). The gripping mechanism (5) includes a second cylinder (501), a lifting seat (502), a parallel finger cylinder (503), and a clamping plate (504). The second cylinder (501) is vertically installed on the linear displacement mechanism (4). The extension end of the second cylinder (501) is connected to the lifting seat (502). Two parallel finger cylinders (503) are installed on the bottom surface of the lifting seat (502). The two grippers of the parallel finger cylinder (503) are connected to a U-shaped clamping plate (504). The opposite surfaces of the two clamping plates (504) of the same parallel finger cylinder (503) are provided with arc-shaped clamping grooves (505). The unloading assembly (6) is located above the progressive conveying mechanism (2) and is used to catch the processed rubber roller.

2. The automatic loading and unloading mechanism for a rubber roller grinding machine according to claim 1, characterized in that, The progressive conveying mechanism (2) includes a third cylinder (201), an outer gear plate (202), a first bracket (203), and an inner gear plate (204). The outer gear plate (202) is mounted on the chassis (1) via multiple first brackets (203). There are multiple third cylinders (201), all of which are mounted on the chassis (1). The inner gear plate (204) is located inside the outer gear plate (202). The bottom surface of the outer gear plate (202) is provided with multiple through holes corresponding to the third cylinders (201). The telescopic end of the third cylinder (201) is connected by corresponding... The through hole passes through and the through end is connected to the inner gear plate (204). Both sides of the outer gear plate (202) and the inner gear plate (204) are provided with triangular toothed mouths (205). The side of the toothed mouth (205) facing the pusher mechanism (3) is a vertical side, and the other side is a downward inclined side. The toothed mouths on the inner gear plate (204) and the outer gear plate (202) are staggered, and the toothed mouth on the inner gear plate is located below the toothed mouth on the outer gear plate. The first cylinder (301) is installed on the bottom surface of the end of the outer gear plate (202) through a second bracket (304).

3. The automatic loading and unloading mechanism for a rubber roller grinding machine according to claim 2, characterized in that, The linear displacement mechanism (4) includes a third bracket (401), a lead screw drive (402), and a slide (403). The third bracket (401) is mounted on one side of the housing (1), the lead screw drive (402) is mounted on the upper end of the third bracket (401), the slide (403) is connected to the lead screw drive (402), and the second cylinder (501) is mounted on the slide (403).

4. The automatic loading and unloading mechanism for a rubber roller grinding machine according to claim 3, characterized in that, The feeding assembly (6) includes a fourth bracket (601), a feeding plate (602), and a baffle (603). There are two fourth brackets (601), which are fixed on both sides of the chassis (1). The progressive conveying mechanism (2) is located between the two fourth brackets (601). The feeding plate (602) is fixed on the two fourth brackets (601) and located above the progressive conveying mechanism (2). The end of the feeding plate (602) away from the pushing mechanism is inclined downward, and the inclined end is connected to the baffle (603).

5. The automatic loading and unloading mechanism for a rubber roller grinding machine according to claim 4, characterized in that, The third bracket (401) is provided with a transmitter (7), and the transmitter (7) is aligned with the central axis of the pusher mechanism (3). The side wall of the parallel finger cylinder (503) near the pusher mechanism (3) is provided with a receiver for receiving the signal emitted by the transmitter (7).

6. The automatic loading and unloading mechanism for a rubber roller grinding machine according to claim 5, characterized in that, The third support (401) is provided with a distance sensor (8) opposite to the slide table, which is used to sense the distance to the slide table (403).

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