Bending device with locking structure for plastic hollow plate

Abstract

The utility model discloses a plastic hollow plate bending device with a locking structure, which comprises two racks, an operating table is fixedly arranged at the upper ends of the racks, sliding chutes are arranged at the front end and the rear end of one side in the operating table, and a bending groove is arranged at the upper end of the other side in the operating table; the bending plate is arranged in the middle of the interior of the bending groove, and a motor is fixedly arranged at the rear end of the other side of the exterior of the operation table; the mounting lug plates are arranged on the two sides of the interior of the bending groove, fixing rods are fixedly arranged in the mounting lug plates, rotating rods are arranged outside the fixing rods, arc-shaped racks are fixedly arranged at the lower ends of the interiors of the rotating rods, and limiting gears are arranged on the two sides of the exterior of an output shaft, located in the bending groove, of the motor. The structure solves the problems that the bending plate is easy to loosen when being bent, and the plastic hollow plate is easy to deviate when being bent.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic hollow board bending, in particular to a bending device for plastic hollow boards with a locking structure. Background Technique

[0002] Plastic hollow board is a new type of material made of modern chemical HDPE and HDPP materials. Plastic hollow boards are mainly used in various industrial fields such as electronics, packaging, machinery, and light industry, and are a new type of environmentally friendly packaging material. Plastic hollow board bending refers to the process of shaping plastic hollow boards according to specific angles and shapes. Due to its light weight, durability, and easy processing characteristics, plastic hollow boards often need to be bent to meet different application requirements, and the locking structure is an important component of the plastic hollow board bending device.

[0003] For example, the Chinese patent "A Plastic Hollow Board Bending Device" with the publication number CN219855949U includes a fixed frame, a fixed plate, a support plate, and a support box. The support plate is fixedly installed at the bottom of the fixed plate, and the support box is fixedly installed on the front and rear sides of the fixed plate; a bending unit, located on one side of the fixed plate, the bending unit includes a turning plate, a heating block, and a rotating rod. The turning plate is fixedly installed on the outer wall of the rotating rod, the rotating rod is installed on the front and rear sides of the fixed plate and the support box, and the heating block is fixedly installed on one side of the fixed plate and one side of the turning plate; a pointer, fixedly installed on the outer wall of the rotating rod, the pointer is in contact with the support box; a fixing unit, located on the top of the fixed plate, the fixing unit includes a fixed frame, a pressing plate, a threaded rod, and a grip. The fixed frame is fixedly installed on the top of the fixed plate, the pressing plate is located inside the fixed frame, the threaded rod is threadedly installed on the top of the fixed frame, the bottom end of the threaded rod is rotatably installed with the pressing plate, and the grip is fixedly installed on the top end of the threaded rod.

[0004] Although the above-mentioned prior art can realize the bending of plastic hollow boards, in actual use, on the one hand, the bending plate is prone to looseness during bending. When bending the plastic hollow board, the bending plate squeezes and bends the plastic hollow board, resulting in the bending plate being in a bent state for a long time and aging, thus reducing the production quality of the plastic hollow board. On the other hand, the plastic hollow board is prone to position deviation during bending. When bending the plastic hollow board, the plastic hollow board is squeezed and displaced, thus affecting the bending effect of the plastic hollow board. Therefore, it does not meet the existing requirements, and for this reason, we propose a bending device for plastic hollow boards with a locking structure. Content of the Utility Model

[0005] The purpose of the utility model is to provide a bending device for plastic hollow boards with a locking structure to solve the problems of easy loosening of the bending plate during bending and easy position deviation of the plastic hollow board during bending proposed in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: A bending device for plastic hollow plates with a locking structure, including a frame, and there are two frames. The upper end of the frame is fixedly provided with an operating table. The front and rear ends on one side inside the operating table are both provided with chutes, and the upper end on the other side inside the operating table is provided with a bending groove; It also includes:

[0007] A bending plate, which is arranged at the middle position inside the bending groove. The rear end on the other side outside the operating table is fixedly provided with a motor, and the output shaft of the motor extends into the bending groove and is fixedly connected to the bending plate;

[0008] Mounting ear plates, which are arranged on both sides inside the bending groove, and the mounting ear plates are fixedly connected to the inner wall of the bending groove. A fixing rod is fixedly arranged inside the mounting ear plate. A rotating rod is arranged outside the fixing rod, and the rotating rod is rotatably connected to the fixing rod. An arc-shaped rack is fixedly arranged at the lower end inside the rotating rod. Limiting gears are arranged on both outer sides of the output shaft of the motor located inside the bending groove, and the limiting gears are meshed with the arc-shaped rack.

[0009] Preferably, a torsion spring is arranged outside the fixing rod between the rotating rod and the mounting ear plate, and the torsion spring is fixedly connected to the rotating rod and the mounting ear plate respectively. A handle is fixedly arranged on one side of the upper end of the rotating rod.

[0010] Preferably, a first fixing frame is arranged inside the chute, and the first fixing frame extends above the operating table. A second fixing frame is fixedly arranged on one side of the upper end of the bending plate. Bolts are arranged at the upper ends of the first fixing frame and the second fixing frame, and the lower ends of the bolts extend below the cross plates of the first fixing frame and the second fixing frame. A rubber pad is fixedly arranged at the lower end of the bolt.

[0011] Preferably, second hydraulic telescopic devices are fixedly arranged at the front and rear ends on the outside of one side of the operating table, and the telescopic ends of the second hydraulic telescopic devices extend into the chute and are fixedly connected to the first fixing frame.

[0012] Preferably, limiting strips are fixedly arranged on both outer sides of the first fixing frame located inside the chute, and the limiting strips are slidably limited with the chute.

[0013] Preferably, a protractor is fixedly arranged at the middle position on the front end outside the operating table, and the protractor is connected to the output shaft of the motor.

[0014] Preferably, a mounting frame is fixedly arranged at the middle position on the upper end of the operating table. First hydraulic telescopic devices are fixedly arranged at the front and rear ends on the upper end of the cross plate of the mounting frame, and the telescopic ends of the first hydraulic telescopic devices extend below the cross plate of the mounting frame. A heating rod is fixedly arranged at the lower end of the telescopic end of the first hydraulic telescopic device.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The present utility model can lock and fix the bending plate through the arc-shaped rack and the limiting gear. When performing the bending operation, at this time, the plastic hollow plate has been fixed. First, start the motor, so that the output shaft of the motor drives the bending plate and the limiting gear to rotate together. When the limiting gear rotates reversely, it moves forward on the arc-shaped rack. The limiting gear and the arc-shaped rack slide relative to each other. At this time, the torsion spring is in a compressed state. When the bending plate rotates to a suitable position, the arc-shaped rack contacts the limiting gear reversely, and the arc-shaped rack and the limiting gear are clamped and fixed to lock the bending plate at the current angle. When the bending is completed, at this time, grasp the handle and pull it to separate the arc-shaped rack from the limiting gear, so as to reset the bending plate, avoid the problem of aging of the bending plate due to being in the bent state for a long time, and thus extend the service life of the bending plate.

[0017] 2. The present utility model can fix the plastic hollow plate through the second fixing frame and the first fixing frame. Before bending, first place the plastic hollow plate in the middle position on the operating table. At this time, start the second hydraulic telescopic device first, so that the telescopic end of the second hydraulic telescopic device extends. When the telescopic end of the second hydraulic telescopic device extends, it drives the first fixing frame to slide in the chute until the cross plate of the first fixing frame is above the plastic hollow plate. At this time, rotate the bolts on the first fixing frame and the second fixing frame respectively, so that the bolts move downward through the external threads. At the same time, the rubber pad moves downward together with the bolts until the lower end of the rubber pad contacts and presses the surface of the plastic hollow plate. At this time, perform the bending operation on the plastic hollow plate to avoid the situation of position deviation of the plastic hollow plate during bending.

[0018] 3. The present utility model can make the rotation angle of the bending plate more accurate through the motor and the angle gauge. When bending the plastic hollow plate, the plastic hollow plate has been fixed. At this time, start the motor, so that the output shaft of the motor drives the bending plate and the limiting gear to rotate together. At the same time, when the output shaft of the motor rotates, the pointer on the angle gauge rotates synchronously until the plastic hollow plate is bent to a suitable angle, avoiding errors during the bending of the plastic hollow plate, and thus improving the bending quality of the plastic hollow plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the internal structure of the present utility model;

[0020] Figure 2 is the side view of the bending structure of the present utility model;

[0021] Figure 3 is the side view of the fixing structure of the present utility model;

[0022] Figure 4 This is for the Figure 1 local enlarged view of area A in the present utility model.

[0023] In the figure: 1, frame; 2, operating table; 3, mounting bracket; 4, chute; 5, bending groove; 6, first hydraulic telescopic device; 7, heating rod; 8, first fixing bracket; 9, bolt; 10, rubber pad; 11, limiting strip; 12, second fixing bracket; 13, bending plate; 14, motor; 15, limiting gear; 16, rotating rod; 17, mounting ear plate; 18, fixing rod; 19, arc-shaped rack; 20, handle; 21, second hydraulic telescopic device; 22, torsion spring; 23, angle gauge. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a bending device for plastic hollow plates with a locking structure, including a frame 1, and there are two frames 1. An operating table 2 is fixedly arranged at the upper end of the frame 1. Chutes 4 are arranged at the front and rear ends on one side inside the operating table 2, and a bending groove 5 is arranged at the upper end on the other side inside the operating table 2; It also includes:

[0026] A bending plate 13, which is arranged at the middle position inside the bending groove 5. A motor 14 is fixedly arranged at the rear end on the other side outside the operating table 2, and the output shaft of the motor 14 extends into the bending groove 5 and is fixedly connected to the bending plate 13;

[0027] Mounting ear plates 17, which are arranged on both sides inside the bending groove 5, and the mounting ear plates 17 are fixedly connected to the inner wall of the bending groove 5. A fixing rod 18 is fixedly arranged inside the mounting ear plates 17. A rotating rod 16 is arranged outside the fixing rod 18, and the rotating rod 16 is rotatably connected to the fixing rod 18. An arc-shaped rack 19 is fixedly arranged at the lower end inside the rotating rod 16. Limiting gears 15 are arranged on both sides outside the output shaft of the motor 14 located inside the bending groove 5, and the limiting gears 15 are meshed with the arc-shaped rack 19.

[0028] During use, when performing the bending operation, at this time the plastic hollow board has been fixed. First, turn on the motor 14, so that the output shaft of the motor 14 drives the bending plate 13 and the limiting gear 15 to rotate together. When the limiting gear 15 rotates reversely, it moves forward on the arc-shaped rack 19. The limiting gear 15 and the arc-shaped rack 19 slide relative to each other. At this time, the torsion spring 22 is in a compressed state. When the bending plate 13 rotates to a suitable position, the arc-shaped rack 19 contacts the limiting gear 15 reversely, and the arc-shaped rack 19 and the limiting gear 15 are clamped and fixed to lock the bending plate 13 at the current angle. When the bending is completed, grasp the handle 20 and pull it to separate the arc-shaped rack 19 from the limiting gear 15, so that the bending plate 13 returns to its original position.

[0029] Please refer to Figure 1 and Figure 4 , a torsion spring 22 is arranged outside between the rotating rod 16 and the mounting ear plate 17 of the fixing rod 18, and the torsion spring 22 is fixedly connected to the rotating rod 16 and the mounting ear plate 17 respectively. A handle 20 is fixedly arranged on one side of the upper end of the rotating rod 16, which is convenient for the rotating rod 16 to rotate and reset through the torsion spring 22.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , a first fixing frame 8 is arranged inside the sliding groove 4, and the first fixing frame 8 extends above the operating table 2. A second fixing frame 12 is fixedly arranged on one side of the upper end of the bending plate 13. Bolts 9 are arranged at the upper ends of the first fixing frame 8 and the second fixing frame 12, and the lower ends of the bolts 9 extend below the cross plates of the first fixing frame 8 and the second fixing frame 12. Rubber pads 10 are fixedly arranged at the lower ends of the bolts 9, which is convenient for fixing the plastic hollow board through the rubber pads 10.

[0031] Please refer to Figure 1 and Figure 3 , second hydraulic telescopic devices 21 are fixedly arranged at the front and rear ends on the outside of one side of the operating table 2, and the telescopic ends of the second hydraulic telescopic devices 21 extend into the sliding groove 4 and are fixedly connected to the first fixing frame 8, which is convenient for driving the first fixing frame 8 to move through the second hydraulic telescopic devices 21.

[0032] Please refer to Figure 1 and Figure 3 , limiting strips 11 are fixedly arranged on both outer sides of the first fixing frame 8 located inside the sliding groove 4, and the limiting strips 11 are slidably limited to the sliding groove 4, which is convenient for making the movement of the first fixing frame 8 more stable through the limiting strips 11.

[0033] Please refer to Figure 2 , a protractor 23 is fixedly arranged at the middle position of the front end outside the operating table 2, and the protractor 23 is connected to the output shaft of the motor 14, which is convenient for displaying the bending angle through the protractor 23.

[0034] Please refer to Figure 1 , at the middle position on the upper end of the operating table 2, a mounting bracket 3 is fixedly arranged. At the front and rear ends of the upper end of the cross plate of the mounting bracket 3, first hydraulic telescopic devices 6 are fixedly arranged, and the telescopic ends of the first hydraulic telescopic devices 6 extend below the cross plate of the mounting bracket 3. The lower ends of the telescopic ends of the first hydraulic telescopic devices 6 are fixedly provided with heating rods 7, which is convenient to heat and bend the plastic hollow plate through the heating rods 7.

[0035] Working principle: Before bending, first place the plastic hollow plate at the middle position on the operating table 2. At this time, first turn on the second hydraulic telescopic device 21 to make the telescopic end of the second hydraulic telescopic device 21 extend. When the telescopic end of the second hydraulic telescopic device 21 extends, it drives the first fixing bracket 8 to slide in the chute 4 until the cross plate of the first fixing bracket 8 is above the plastic hollow plate. At this time, turn the bolts 9 on the first fixing bracket 8 and the second fixing bracket 12 respectively, so that the bolts 9 move downward through the external threads, and at the same time, the rubber pads 10 move downward together with the bolts 9 until the lower ends of the rubber pads 10 contact and press the surface of the plastic hollow plate. At this time, then carry out the bending operation on the plastic hollow plate. When bending the plastic hollow plate, the plastic hollow plate has been fixed. At this time, turn on the motor 14 to make the output shaft of the motor 14 drive the bending plate 13 and the limiting gear 15 to rotate together. At the same time, when the output shaft of the motor 14 rotates, the pointer on the angle gauge 23 rotates synchronously until the plastic hollow plate is bent to a suitable angle.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A bending device for a plastic hollow board with a locking structure, comprising a frame (1), and there are two frames (1). The upper end of the frame (1) is fixedly provided with an operating table (2). The front and rear ends of one side inside the operating table (2) are both provided with sliding grooves (4). The upper end of the other side inside the operating table (2) is provided with a bending groove (5); It is characterized in that: It further includes: A bending plate (13), which is arranged at the middle position inside the bending groove (5). The rear end of the other side outside the operating table (2) is fixedly provided with a motor (14), and the output shaft of the motor (14) extends into the bending groove (5) and is fixedly connected to the bending plate (13); Mounting ear plates (17), which are arranged on both sides inside the bending groove (5), and the mounting ear plates (17) are fixedly connected to the inner wall of the bending groove (5). A fixing rod (18) is fixedly arranged inside the mounting ear plate (17). A rotating rod (16) is arranged outside the fixing rod (18), and the rotating rod (16) is rotatably connected to the fixing rod (18). An arc-shaped rack (19) is fixedly arranged at the lower end inside the rotating rod (16). Limiting gears (15) are arranged on both outer sides of the output shaft of the motor (14) located inside the bending groove (5), and the limiting gears (15) are meshed with the arc-shaped rack (19).

2. The bending device for a plastic hollow board with a locking structure according to claim 1, characterized in that: A torsion spring (22) is arranged outside the fixing rod (18) between the rotating rod (16) and the mounting ear plate (17), and the torsion spring (22) is fixedly connected to the rotating rod (16) and the mounting ear plate (17) respectively. A handle (20) is fixedly arranged on one side of the upper end of the rotating rod (16).

3. The bending device for plastic hollow plates with a locking structure according to claim 1, characterized in that: A first fixing frame (8) is arranged inside the sliding groove (4), and the first fixing frame (8) extends above the operating table (2). One side of the upper end of the bending plate (13) is fixedly provided with a second fixing frame (12). Bolts (9) are arranged at the upper ends of the first fixing frame (8) and the second fixing frame (12), and the lower ends of the bolts (9) extend below the cross plates of the first fixing frame (8) and the second fixing frame (12). A rubber pad (10) is fixedly arranged at the lower end of the bolt (9).

4. A bending device for plastic hollow plates with a locking structure according to claim 3, characterized in that: Second hydraulic telescopic devices (21) are fixedly arranged at the front and rear ends of the outside of one side of the operating table (2), and the telescopic ends of the second hydraulic telescopic devices (21) extend into the sliding groove (4) and are fixedly connected to the first fixing frame (8).

5. The bending device for plastic hollow plates with a locking structure according to claim 3, characterized in that: Limiting strips (11) are fixedly arranged on both outer sides of the first fixing frame (8) located inside the sliding groove (4), and the limiting strips (11) are slidably limited with the sliding groove (4).

6. The bending device for plastic hollow plates with a locking structure according to claim 1, characterized in that: An angle meter (23) is fixedly arranged at the middle position of the front end outside the operating table (2), and the angle meter (23) is connected to the output shaft of the motor (14).

7. A bending device for a plastic hollow board with a locking structure according to claim 1, characterized in that: A mounting frame (3) is fixedly arranged at the middle position of the upper end of the operating table (2). First hydraulic telescopic devices (6) are fixedly arranged at the front and rear ends of the cross plate of the mounting frame (3), and the telescopic ends of the first hydraulic telescopic devices (6) extend below the cross plate of the mounting frame (3). A heating rod (7) is fixedly arranged at the lower end of the telescopic end of the first hydraulic telescopic device (6).

Images