Feeding mechanism of three-roller plate bending machine

Abstract

The utility model relates to the technical field of feeding of three-roller plate bending machines, in particular to a feeding mechanism of a three-roller plate bending machine, and solves the problem that in the prior art, when plates are fed, the plates are prone to skew, so that the precision is not high, and the plate bending quality is affected. A feeding mechanism of a three-roller plate bending machine comprises a body, a feeding groove is formed in the surface of the body, a feeding block is slidably connected to the interior of the feeding groove, a feeding plate is arranged at the top of the feeding block through a lifting mechanism, a fixing plate is fixedly connected to the top of the feeding plate, and two anti-tilt rods are fixedly connected to the two sides of the feeding plate correspondingly; two T-shaped limiting rods are arranged between the two anti-tilt rods through a limiting mechanism, and an H-shaped pushing rod is arranged on the surface of the fixing plate in a penetrating mode. A plate is limited by the limiting rod, cannot be inclined and can only move towards the body in one direction, so that the plate stably enters the body to be machined, and the problem that the quality of a rolled plate is poor is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding for a three-roll plate bending machine, and more particularly to a feeding mechanism for a three-roll plate bending machine. Background Technology

[0002] A plate rolling machine is a device that uses work rollers to bend sheet metal into various shapes, such as cylindrical and conical parts. Through the action of external forces such as hydraulic pressure and mechanical force, the work rollers move, thereby bending or rolling the sheet metal into shape. Depending on the rotational movement and positional changes of the work rollers, elliptical, arc-shaped, and cylindrical parts can be produced. A flat, plastic metal sheet passes between the three work rollers of the plate rolling machine. With the downward pressure of the upper roller and the rotational movement of the lower roller, the metal sheet undergoes multiple continuous bending passes, resulting in permanent plastic deformation and being rolled into the desired cylinder, cone, or part thereof. Three-roller plate rolling machines are further classified into symmetrical three-roller plate rolling machines, horizontally adjustable three-roller plate rolling machines, arc-adjustable three-roller plate rolling machines, universal upper roller three-roller plate rolling machines, and hydraulic CNC plate rolling machines. Among them, the mechanical three-roll symmetrical plate rolling machine has the upper roller moving vertically and vertically at the symmetrical position in the center of the two lower rollers, which is achieved through the transmission of lead screw, lead nut and worm gear. The two lower rollers rotate and provide torque for rolling the plate through the output gear of the reducer meshing with the gear of the lower roller. However, the end of the plate needs to be pre-bent with the help of other equipment. The mechanical three-roll asymmetrical plate rolling machine has the upper roller as the main drive and the lower roller moving vertically and vertically to clamp the plate. It also has the lower roller gear meshing with the upper roller gear and serving as the main drive. The side rollers move tilting and lifting, which has the dual functions of pre-bending and rolling. It has a compact structure and is easy to operate and maintain.

[0003] In the prior art, when using a three-roll plate bending machine to process the plate, the plate is first fed into the three-roll plate bending machine, and then the three-roll plate bending machine is started. After the three-roll plate bending machine is started, the plate is pushed so that it slowly enters the interior of the three-roll plate bending machine for bending. After it has fully entered, the plate is no longer pushed, so that the plate can be processed on the three-roll plate bending machine.

[0004] However, during the feeding process of a three-roll plate rolling machine, the plate is pushed into the machine's interior. During this process, the plate is prone to shifting, resulting in low dimensional accuracy of the rolled product and thus affecting the quality of the rolled plate. Utility Model Content

[0005] The purpose of this invention is to provide a feeding mechanism for a three-roll plate rolling machine, which solves the problem in the prior art that the plate is easily skewed during feeding, resulting in low precision and affecting the quality of the rolled plate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feeding mechanism for a three-roll plate bending machine includes a main body, a feeding groove on the surface of the main body, a feeding block slidably connected inside the feeding groove, a feeding plate on the top of the feeding block via a lifting mechanism, a fixed plate fixedly connected to the top of the feeding plate, two anti-tilting rods fixedly connected to both sides of the feeding plate, two T-shaped limiting rods between the two anti-tilting rods via a limiting mechanism, and an H-shaped pushing rod passing through the surface of the fixed plate.

[0008] Preferably, the lifting mechanism includes a lifting cylinder fixedly connected to the top of the feed block, a lifting rod slidably connected inside the lifting cylinder, and the top of the lifting rod fixedly connected to the bottom of the feed plate.

[0009] Preferably, the surface of the lifting rod is provided with several insertion slots, and the surface of the lifting cylinder is provided with a T-shaped insertion rod. The insertion rod is located inside the adjacent insertion slot, and one end of the insertion rod is elastically connected to the surface of the lifting cylinder through a compression spring.

[0010] Preferably, the limiting mechanism includes several anti-movement grooves formed on the surface of the feed plate, and an anti-movement rod is rotatably connected to one side of the limiting rod, with the anti-movement rod located inside the adjacent anti-movement groove.

[0011] Preferably, a number of rollers are rotatably connected to one side of the limiting rod, and a conveyor belt is fitted onto the surface of the rollers.

[0012] Preferably, the surface of the fixing plate is provided with a receiving groove, and one end of the push rod is located inside the receiving groove.

[0013] This utility model has the following beneficial effects:

[0014] When feeding the sheet material, the sheet material needs to be placed into the feeding plate first. It is then clamped by the limiting rods on the feeding plate, which are restricted by the anti-tilting rods. Then, the material is pushed in. During this process, the sheet material is restricted by the limiting rods and cannot tilt. It can only move in one direction toward the body, thus stably entering the body for processing and ensuring that the quality of the rolled sheet is not compromised. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Side view of the lifting mechanism;

[0018] Figure 3 for Figure 1 Side view of the middle limit mechanism;

[0019] Figure 4 for Figure 1 Side view of the feed plate;

[0020] Figure 5 for Figure 3 A side view of one end of the middle limit rod.

[0021] In the diagram: 1. Main body; 2. Feed chute; 3. Feed block; 4. Lifting mechanism; 5. Feed plate; 6. Fixing plate; 7. Anti-tilting rod; 8. Limiting mechanism; 9. Limiting rod; 10. Push rod; 11. Receiving groove; 401. Lifting cylinder; 402. Lifting rod; 403. Insertion groove; 404. Insertion rod; 405. Compression spring; 801. Anti-movement groove; 802. Anti-movement rod; 803. Roller; 804. Conveyor belt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Reference Figure 1-5A feeding mechanism for a three-roll plate bending machine includes a body 1, which is a mature existing technology. The three-roll plate bending machine achieves plate bending through a hydraulic lifting pressure head. Two side pressure rollers can move independently horizontally to adapt to different shape requirements. By adjusting the position of the side pressure rollers and the pressure of the upper pressure roller, bending and rolling operations can be performed on the plate. This is a mature technology. A feeding groove 2 is formed on the surface of the body 1. A feeding block 3 is slidably connected inside the feeding groove 2. A feeding plate 5 is provided on the top of the feeding block 3 via a lifting mechanism 4. When using the three-roll plate bending machine… During the triggering process, the sheet material needs to be placed into the feed plate 5, and then the feed plate 5 is moved and pushed, so that the feed plate 5 is moved by the movement of the feed block 3 in the feed groove 2. During the movement, the feed plate 5 will not be misaligned or tilted, ensuring the stability of the sheet material when entering the body 1. When transporting sheets of different thicknesses, the height of the feed plate 5 can be easily adjusted by the lifting mechanism 4. The feed plate 5 facilitates the feeding of the sheet material into the body 1 for curling processing. A fixing plate 6 is fixedly connected to the top of the feed plate 5. The feeding plate 5 is conveniently held in place, allowing it to move into the body 1 by applying force through the fixing plate 6. Two anti-tilt rods 7 are fixedly connected to both sides of the feeding plate 5. Two T-shaped limiting rods 9 are provided between the two anti-tilt rods 7 via a limiting mechanism 8. As the material moves towards the body 1, the two limiting rods 9 compress and restrict the material on both sides. One end of each limiting rod 9 is held by the two anti-tilt rods 7, preventing it from tilting. Therefore, the material is compressed and restricted by the two limiting rods 9. It will not be skewed, thus ensuring stable feeding of the board and preventing angle errors caused by board skew. The limiting mechanism 8 can easily adjust the distance between the two limiting rods 9 when feeding boards of different widths, making it suitable for boards of different widths. The surface of the fixed plate 6 is provided with an H-shaped push rod 10. After one end of the board enters the body 1, the push rod 10 is used to push the board to facilitate its complete entry into the body 1 for curling processing. The push rod 10 will not be skewed during the pushing process, ensuring stable movement of the board.

[0024] Furthermore, the lifting mechanism 4 includes a lifting cylinder 401 fixedly connected to the top of the feeding block 3. A lifting rod 402 is slidably connected inside the lifting cylinder 401. The top of the lifting rod 402 is fixedly connected to the bottom of the feeding plate 5. When feeding plates of different thicknesses, the height of the feeding plate 5 can be adjusted by moving the lifting rod 402 up and down inside the lifting cylinder 401. The feeding direction of the feeding plate 5 will not change, which can ensure that the pushing of the feeding plate 5 during feeding will not be tilted, thus ensuring the stability of the feeding of the plate.

[0025] Furthermore, the surface of the lifting rod 402 is provided with several insertion slots 403, and the surface of the lifting cylinder 401 is provided with a T-shaped insertion rod 404. The insertion rod 404 is located inside the adjacent insertion slot 403. One end of the insertion rod 404 is elastically connected to the surface of the lifting cylinder 401 through a compression spring 405. When it is necessary to adjust the height of the lifting rod 402, the insertion rod 404 can be pulled outward first, and then the height of the lifting rod 402 can be adjusted. After the adjustment is completed, the insertion rod 404 is released, and the insertion rod 404 enters the adjacent insertion slot 403 through the elasticity of the compression spring 405, thereby fixing the position of the lifting rod 402 on the lifting cylinder 401 and ensuring the normal and stable use of the feed plate 5.

[0026] Furthermore, the limiting mechanism 8 includes several anti-movement grooves 801 formed on the surface of the feed plate 5. An anti-movement rod 802 is rotatably connected to one side of the limiting rod 9. The anti-movement rod 802 is located inside the adjacent anti-movement groove 801. During the process of limiting and clamping the plate by the two limiting rods 9, it is necessary to prevent the force on the plate from being too large, which would cause the two limiting rods 9 to be unable to clamp the plate. At this time, the rotating anti-movement rod 802 needs to be inserted into the adjacent anti-movement groove 801, so that the limiting rod 9 cannot move. This ensures the stability of the two limiting rods 9 in limiting and clamping the plate, and prevents the two limiting rods 9 from being separated and tilted when the plate is fed by external force.

[0027] Furthermore, several rollers 803 are rotatably connected to one side of the limiting rod 9, and a conveyor belt 804 is fitted on the surface of the rollers 803. When the plate is clamped by the limiting rod 9, the friction between the limiting rod 9 and the plate is relatively large, which may make it difficult for the plate to be pushed into the body 1 by the push rod 10 for processing. At this time, the rollers 803 and the conveyor belt 804 are used to make the plate between the two sides easy to move when subjected to external force, so that the plate will not be stuck between the two limiting rods 9 due to the large friction. This ensures that the plate can enter the body 1 smoothly and normally for bending processing.

[0028] Furthermore, the surface of the fixing plate 6 is provided with a receiving groove 11, and one end of the push rod 10 is located inside the receiving groove 11. When the plate is placed on the feeding plate 5, the push plate can be pulled outward, so that part of the push rod 10 enters the receiving groove 11 without affecting the placement of the plate.

[0029] In summary:

[0030] When feeding the sheet material, the sheet material is first placed into the feeding plate 5. Then, the insertion rod 404 is pulled outward, causing it to leave the insertion slot 403. Next, the lifting rod 402 inside the lifting cylinder 401 is moved, adjusting the height of the feeding plate 5. After adjustment, the insertion rod 404 is released, and it re-enters the adjacent insertion slot 403 under the force of the compression spring 405, thus fixing and stabilizing the height of the feeding plate 5. The sheet material is then pushed to fit against the fixing plate 6. Next, the two limiting rods 9 are moved. The limiting rods 9 are prevented from tilting by the anti-tilting rod 7, and they fit against the side of the sheet material. Finally, the anti-movement rod 802 on the limiting rod 9 is rotated, allowing it to enter the adjacent anti-movement slot 801. The feed plate 5 is then pushed, and it moves by the movement of the feed block 3 in the feed groove 2. During this process, the plate on the feed plate 5 will not be tilted, ensuring that the plate enters the body 1. Then, force is applied to the push rod 10, causing the push rod 10 to leave the receiving groove 11 and apply force to the plate, causing the plate to move towards the body 1. During this process, the plate can easily detach from the limit rod 9 through the roller 803 on one side of the limit rod 9 and the conveyor belt 804, without the plate being unable to detach from the limit rod 9 due to excessive friction, thus ensuring the stability of the plate feeding. With the above structure, when feeding the plate, the plate can be easily restricted by the limit rod 9 in conjunction with the anti-tilting rod 7, so that the plate will not be tilted during the feeding process, ensuring the stability of the plate bending process.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a three-roll plate bending machine, comprising a body (1), characterized in that, The surface of the main body (1) is provided with a feeding groove (2), and a feeding block (3) is slidably connected inside the feeding groove (2). The top of the feeding block (3) is provided with a feeding plate (5) through a lifting mechanism (4). The top of the feeding plate (5) is fixedly connected with a fixing plate (6). Two anti-tilting rods (7) are fixedly connected on both sides of the feeding plate (5). Two T-shaped limiting rods (9) are provided between the two anti-tilting rods (7) through a limiting mechanism (8). An H-shaped push rod (10) is passed through the surface of the fixing plate (6).

2. The feeding mechanism of a three-roll plate bending machine according to claim 1, characterized in that, The lifting mechanism (4) includes a lifting cylinder (401) fixedly connected to the top of the feed block (3), and a lifting rod (402) is slidably connected inside the lifting cylinder (401). The top of the lifting rod (402) is fixedly connected to the bottom of the feed plate (5).

3. The feeding mechanism of a three-roll plate bending machine according to claim 2, characterized in that, The surface of the lifting rod (402) is provided with a plurality of insertion slots (403), and the surface of the lifting cylinder (401) is provided with a T-shaped insertion rod (404). The insertion rod (404) is located inside the adjacent insertion slot (403), and one end of the insertion rod (404) is elastically connected to the surface of the lifting cylinder (401) through a compression spring (405).

4. The feeding mechanism of a three-roll plate bending machine according to claim 1, characterized in that, The limiting mechanism (8) includes several anti-movement grooves (801) formed on the surface of the feed plate (5), and an anti-movement rod (802) is rotatably connected to one side of the limiting rod (9). The anti-movement rod (802) is located inside the adjacent anti-movement groove (801).

5. The feeding mechanism of a three-roll plate bending machine according to claim 1, characterized in that, A plurality of rollers (803) are rotatably connected to one side of the limiting rod (9), and a conveyor belt (804) is fitted on the surface of the plurality of rollers (803).

6. The feeding mechanism of a three-roll plate bending machine according to claim 1, characterized in that, The surface of the fixing plate (6) is provided with a receiving groove (11), and one end of the push rod (10) is located inside the receiving groove (11).

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