Plastic plate bending device

Abstract

According to the plastic plate bending device, a plastic plate is located on a bending rotating plate at the upper end of a rack, a first pressing and fixing device located above the plastic plate is arranged at the upper end of the rack, and a transverse support sliding back and forth in the width direction of the rack is installed at the upper end of the rack in a guiding and sliding mode; the heating device and the second pressing and fixing device are both installed on the transverse support in a height-adjustable mode, a transverse movement driving device connected with the transverse support is arranged on the right side of the upper end of the rack, and a telescopic bending device with the telescopic end hinged to the bottom face of the movable section of the bending rotating plate is arranged on the left side of the rack. And the movable section of the bending rotating plate is driven by the telescopic bending device to bend the plastic plate of which the bending part is heated. The problems of low bending efficiency and precision and poor safety existing in manual bending are solved, the distance between the heating device and the plastic plate can be adjusted through the transverse moving support, the bending precision and efficiency are high, the correction difficulty and frequency of manual bending are reduced, and the workload of field operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic processing equipment, and in particular relates to a plastic plate bending device. Background Art

[0002] Plastic plates with bent edges usually use a one-time molding device, which generally pours gelatinous plastic granules into a processing mold for molding. However, for bending already processed plastic plates, they are generally heated at the bend by a heating rod, and then slowly bent manually to achieve the bending. The bending operation is cumbersome and inefficient, and the heating rod is easy to touch the hand and burn the limbs. Therefore, it is necessary to make improvements to the above problems. Utility Model Content

[0003] The technical problem solved by the utility model is as follows: a plastic sheet bending device is provided, which realizes the compression and heating of the plastic sheet located on the bending rotating plate by arranging a first clamping and fixing device and a transverse bracket sliding along the length direction of the frame on the bracket, and arranging a heating device and a second clamping and fixing device on the transverse bracket, and the bending of the plastic sheet is realized after the bending rotating plate is driven by the telescopic bending device on the frame to rotate about the hinge center, thereby solving the problems of low bending efficiency and accuracy and poor safety existing in manual bending, and the distance between the heating device and the plastic sheet can be adjusted by the transverse bracket, thereby improving the position accuracy of the bending mechanism, reducing the difficulty and number of manual bending corrections, improving production efficiency, reducing the workload of on-site operators, and having high use value.

[0004] The technical solution adopted by the utility model is as follows: a plastic sheet bending device comprises a frame, an upper end portion of the frame is provided with a bending rotating plate, and the plastic sheet to be bent is located on the bending rotating plate, the upper end of the frame is provided with a first pressing and fixing device located above the plastic sheet and used to fix the non-bending section of the plastic sheet, the upper end of the frame is guided and slidably installed with a transverse bracket that slides back and forth along its width direction, and a heating device for heating the bending part of the plastic sheet and a second pressing and fixing device for pressing and fixing the right side of the bending part of the plastic sheet are both height-adjustably installed on the transverse bracket, a transverse driving device connected to the transverse bracket and used to drive the transverse bracket to move back and forth along the width direction of the frame is provided on the right side of the upper end of the frame, a telescopic bending device whose telescopic end is hinged to the bottom surface of the active section of the bending rotating plate is provided on the left side of the frame, and the active section of the bending rotating plate bends the plastic sheet heated at the bending part under the drive of the telescopic bending device.

[0005] Among them, the first clamping and fixing device includes a first cylinder and a pressure plate, a sensor bracket is fixed on the inner walls of the two wide sides of the frame, the bracket one is fixed to the upper end of the sensor bracket, and the first cylinder is installed on the inner wall of the bracket one, the pressure plate is arranged above the plastic plate, and the two ends of the pressure plate are connected to the lower ends of the piston rod ends of the first cylinder at corresponding positions, and the expansion and contraction of the piston rod of the first cylinder controls the pressure plate to press or loosen the non-bending part of the plastic plate.

[0006] Furthermore, the heating device includes an electric heating knife, which is arranged directly above the bending part of the plastic plate, and the two guide shafts whose lower ends are symmetrically fixed to the upper end of the electric heating knife pass through the guide holes on the transverse bracket. The middle part of the upper end of the electric heating knife is fixedly connected to the end of the second cylinder piston rod installed in the middle part of the transverse bracket, and the electric heating knife is controlled to rise and separate from the plastic plate or descend and contact with the plastic plate for heating under the extension and retraction of the second cylinder piston rod.

[0007] Furthermore, the second clamping and fixing device includes a pressing block and a third cylinder, two third cylinders are symmetrically installed on the transverse bracket, and the piston rod end at the lower end of the third cylinder is fixedly connected to the upper end of the pressing block, and the contact or separation of the pressing block and the plastic plate is achieved under the drive of the third cylinder.

[0008] Furthermore, a vertical spacing scale for reflecting the lifting height of the electric heating knife is vertically fixed on the transverse bracket.

[0009] Furthermore, the upper ends of the two wide sides of the frame are provided with linear guide rails, and the lower ends of the transverse brackets with openings facing downward and in a groove-shaped structure are fixedly connected to the linear guide sliders on the corresponding sides;

[0010] The telescopic bending device adopts an inclined bending cylinder, the lower end of which is hinged to the middle of the long side of the left side of the frame, and the upper telescopic end of the bending cylinder is hinged to the bottom of the active section of the bending rotating plate.

[0011] Furthermore, the transverse driving device includes a fourth cylinder, and a cylinder bracket located on the outside of the linear guide rail is fixed at the upper right end of the two wide sides of the frame, and the right end of the fourth cylinder is fixed on the side wall of the cylinder bracket. The piston rod end of the fourth cylinder is fixedly connected to the right side of the transverse bracket, and under the synchronous drive of the two fourth cylinders, the transverse bracket can move left and right along the length direction of the linear guide rail.

[0012] Furthermore, horizontal spacing scales for reflecting the horizontal movement distance of the transverse support are fixed on the outer walls of the two wide sides of the frame.

[0013] Furthermore, the length and height of the first pressing and fixing device are both smaller than the length and height of the transverse bracket, and the lengths of the bending and rotating plate and the plastic plate are both smaller than the length of the transverse bracket.

[0014] Furthermore, the bending rotating plate includes a movable section and a fixed section distributed on the left and right, whose upper end surfaces are on the same plane, the right end of the movable section is hinged to the left end of the fixed section, sensor brackets are fixed on the inner walls of the two wide sides of the frame, and an angle sensor for detecting the rotation angle of the movable section is installed on the sensor bracket.

[0015] The advantages of this utility model compared with the prior art:

[0016] 1. This technical solution installs the heating device in an adjustable height on a transverse bracket whose fixed position can be adjusted along the width direction of the frame, so as to realize the separate or simultaneous adjustment of the heating device in the vertical and horizontal directions, effectively adjust the distance between the electric heating knife and the plastic plate, and improve the position accuracy of the heating device;

[0017] 2. The one-step bending of the plastic plate in this technical solution greatly reduces the difficulty and number of horizontal corrections of the bending device and improves production efficiency;

[0018] 3. This technical solution provides a horizontal spacing scale for visually adjusting the horizontal size of the lateral bracket and a vertical spacing scale for visually adjusting the height size of the electric heating knife, so that the horizontal and vertical adjustment sizes of the bending device are clear at a glance without manual measurement;

[0019] 4. This technical solution has novel structural design, convenient and quick installation, effectively adjusts the distance between the electric heating knife and the plastic plate, improves the position accuracy of the bending device, improves production efficiency, reduces the workload of on-site operators, has low correction difficulty and cost, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of the structure of the utility model;

[0021] Figure 2 This is a top view of the structure of the utility model;

[0022] Figure 3 It is the left view of the structure of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiment of the present utility model Figure 1-3 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0026] Plastic sheet bending devices, such as Figure 1-3As shown, it includes a frame 1, a bending rotating plate 3 is provided at the upper end of the frame 1, and the plastic plate 4 to be bent is located on the bending rotating plate 3, the upper end of the frame 1 is provided with a first clamping and fixing device 15 located above the plastic plate 4 and used to fix the non-bending section of the plastic plate 4, the upper end of the frame 1 is guided and slidably installed with a transverse bracket 9 that slides back and forth along its width direction, and a heating device for heating the bending part of the plastic plate 4 and a second clamping and fixing device for clamping and fixing the right side of the bending part of the plastic plate 4 are both height-adjustably installed on the transverse bracket 9, a transverse driving device connected to the transverse bracket 9 and used to drive the transverse bracket 9 to move back and forth along the width direction of the frame 1 is provided on the right side of the upper end of the frame 1, and a telescopic end is hinged to the bottom surface of the movable segment 3-1 of the bending rotating plate 3 on the left side of the frame 1 A telescopic bending device, and the movable section 3-1 of the bending rotating plate 3 bends the plastic plate 4 heated at the bending part under the drive of the telescopic bending device; in the above structure, the heating device is height-adjustably installed on a transverse bracket 9 that can be adjusted to a fixed position along the width direction of the frame 1, so that the heating device can be adjusted separately or simultaneously in the vertical and horizontal directions, and the spacing between the heating device and the plastic plate 4 can be effectively adjusted to improve the position accuracy of the heating device; the one-time bending of the plastic plate 4 greatly reduces the difficulty and number of horizontal corrections of the bending device, improves production efficiency, and reduces the workload of on-site operators; wherein, an operation control cabinet 1-1 is fixed to the left outer wall of the frame 1, and an operation cotton board 1-2 arranged on the operation control cabinet 1-1 is used to control the telescopic action of each cylinder and the heating start and stop control of the heating device;

[0027] The specific structure of the first clamping and fixing device 15 is as follows: the first clamping and fixing device 15 includes a first cylinder 15-3 and a pressing plate 15-1, the sensor bracket 14-1 is fixed on the inner walls of the two wide sides of the frame 1, the bracket 15-2 is fixed to the upper end of the sensor bracket 14-1, and the first cylinder 15-3 is installed on the inner wall of the bracket 15-2, the pressing plate 15-1 is arranged above the plastic plate 4, and the two ends of the pressing plate 15-1 are connected to the lower ends of the piston rod ends of the first cylinder 15-3 at the corresponding positions, and the compression or loosening of the non-bending part of the plastic plate 4 by the expansion and contraction of the piston rod of the first cylinder 15-3 controls the pressing plate 15-1; ensure the position of the plastic plate 4 when bending, and provide conditions for improving the bending accuracy and quality;

[0028] The specific structure of the heating device is as follows: the heating device includes an electric heating knife 6, which is arranged just above the bending part of the plastic plate 4, and two guide shafts 8 whose lower ends are symmetrically fixed to the upper end of the electric heating knife 6 penetrate the guide holes on the transverse bracket 9, and the middle part of the upper end of the electric heating knife 6 is fixedly connected to the end of the piston rod of the second cylinder 7 installed in the middle part of the transverse bracket 9, and the electric heating knife 6 is controlled to rise and separate from the plastic plate 4 or to fall and contact and heat the plastic plate 4 under the extension and contraction of the piston rod of the second cylinder 7;

[0029] The specific structure of the second clamping and fixing device is as follows: the second clamping and fixing device includes a clamping block 11 and a third cylinder 10, two third cylinders 10 are symmetrically installed on the transverse bracket 9, and the piston rod end of the lower end of the third cylinder 10 is fixedly connected to the upper end of the clamping block 11, and the contact or separation of the clamping block 11 and the plastic plate 4 is achieved under the drive of the third cylinder 10; during the heating process and the initial bending process, the contact between the clamping block 11 and the plastic plate 4 presses the plastic plate 4 to ensure heating of the bending position and bending accuracy and precision.

[0030] In order to quickly determine the lateral movement distance of the electric heating knife 6, a vertical spacing scale 10-1 for reflecting the lifting height of the electric heating knife 6 is vertically fixed on the transverse bracket 9.

[0031] The guide installation structure of the transverse bracket 9 on the frame 1 is as follows: the upper ends of the two wide sides of the frame 1 are provided with linear guide rails 5, and the lower ends of the transverse brackets 9 with openings facing downward and in a groove-shaped structure are fixedly connected to the sliders of the corresponding linear guide rails 5;

[0032] The specific structure of the telescopic bending device is as follows: the telescopic bending device adopts an inclined bending cylinder 2, the lower end of the bending cylinder 2 is hinged to the middle of the long side on the left side of the frame 1, and the upper telescopic end of the bending cylinder 2 is hinged to the bottom of the active section 3-1 of the bending rotating plate 3.

[0033] The specific structure of the transverse driving device is as follows: the transverse driving device includes a fourth cylinder 12, and a cylinder bracket 13 located on the outside of the linear guide rail 5 is fixed at the upper right end of the two wide sides of the frame 1, and the right end of the fourth cylinder 12 is fixed to the side wall of the cylinder bracket 13, and the piston rod end of the fourth cylinder 12 is fixedly connected to the right side of the transverse bracket 9, and under the synchronous drive of the two fourth cylinders 12, the transverse bracket 9 is moved left and right along the length direction of the linear guide rail 5, so as to adjust the position of the heating device and the second clamping and fixing device on the transverse bracket 9; specifically, a horizontal spacing scale 14-2 for reflecting the horizontal movement distance of the transverse bracket 9 is fixed on the outer walls of the two wide sides of the frame 1, so as to quickly determine the relative position size of the heating device and the plastic plate 4; by setting a horizontal spacing scale 14-2 for visually adjusting the horizontal size of the transverse bracket and a vertical spacing scale 10-1 for visually adjusting the height size of the electric heating knife 6, the horizontal and vertical adjustment sizes of the bending device are clear at a glance, without the need for manual measurement;

[0034] The specific structure of the first clamping and fixing device 15 is as follows: the length and height of the first clamping and fixing device 15 are both smaller than the length and height of the transverse bracket 9, and the lengths of the bending and rotating plate 3 and the plastic plate 4 are both smaller than the length of the transverse bracket 9; the above-mentioned size limitation can ensure that the first clamping and fixing device always clamps and fixes the plastic plate 4 before and after bending, and when the transverse bracket 9 drives the heating device and the second clamping and fixing device to move horizontally, it can ensure that the transverse bracket 9, the heating device and the second clamping and fixing device can pass smoothly without interfering with them.

[0035] The specific structure of the bending and rotating plate 3 is as follows: the bending and rotating plate 3 includes a movable segment 3-1 and a fixed segment 3-2 whose upper end surfaces are distributed on the left and right and are on the same plane, the right end of the movable segment 3-1 is hinged to the left end of the fixed segment 3-2, and sensor brackets 14-1 are fixed on the inner walls of the two wide sides of the frame 1, and an angle sensor 14 for detecting the rotation angle of the movable segment 3-1 is installed on the sensor bracket 14-1.

[0036] The technical solution has a novel structural design and is easy and quick to install. The plastic plate 4 is bent in one step, which greatly reduces the difficulty and frequency of horizontal correction of the bending device, improves production efficiency, and reduces the workload of on-site operators; it effectively adjusts the distance between the electric heating knife 6 and the plastic plate 4, improves the position accuracy of the bending device, improves production efficiency, has low correction difficulty and cost, and has high use value.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Plastic sheet bending device, characterized in that: The invention comprises a frame (1), wherein the upper end of the frame (1) is provided with a bending rotating plate (3), and a plastic plate (4) to be bent is located on the bending rotating plate (3), and the upper end of the frame (1) is provided with a first pressing and fixing device (15) located above the plastic plate (4) and used to fix the non-bending section of the plastic plate (4), and the upper end of the frame (1) is guided and slidably mounted with a transverse bracket (9) that slides back and forth along its width direction, and a heating device for heating the bent portion of the plastic plate (4) and a heating device for heating the bent portion of the plastic plate (4) on the right side. The second pressing and fixing device for pressing and fixing the side is height-adjustably mounted on the transverse bracket (9); a transverse driving device connected to the transverse bracket (9) and used to drive the transverse bracket (9) to move back and forth along the width direction of the frame (1) is provided on the right side of the upper end of the frame (1); a telescopic bending device is provided on the left side of the frame (1) whose telescopic end is hinged to the bottom surface of the active section (3-1) of the bending rotating plate (3); and the active section (3-1) of the bending rotating plate (3) is driven by the telescopic bending device to bend the plastic plate (4) heated at the bending position.

2. The plastic sheet bending device according to claim 1, characterized in that: The first pressing and fixing device (15) comprises a first cylinder (15-3) and a pressing plate (15-1); a sensor bracket (14-1) is fixed on the inner walls of the two wide sides of the frame (1); bracket one (15-2) is fixed to the upper end of the sensor bracket (14-1); and the first cylinder (15-3) is installed on the inner wall of bracket one (15-2); the pressing plate (15-1) is arranged above the plastic plate (4); and both ends of the pressing plate (15-1) are connected to the lower ends of the piston rod of the first cylinder (15-3) at corresponding positions; and the pressing or loosening of the non-bending part of the plastic plate (4) by the pressing plate (15-1) is controlled by the extension and retraction of the piston rod of the first cylinder (15-3).

3. The plastic sheet bending device according to claim 1, characterized in that: The heating device comprises an electric heating knife (6), the electric heating knife (6) being arranged just above the bending part of the plastic plate (4), and two guide shafts (8) whose lower ends are symmetrically fixed to the upper end of the electric heating knife (6) and penetrate the guide holes on the transverse bracket (9), the middle part of the upper end of the electric heating knife (6) being fixedly connected to the end of the piston rod of a second cylinder (7) installed in the middle part of the transverse bracket (9), and the electric heating knife (6) is controlled to rise and separate from the plastic plate (4) or to fall and contact and heat the plastic plate (4) under the extension and retraction of the piston rod of the second cylinder (7).

4. The plastic sheet bending device according to claim 1, characterized in that: The second pressing and fixing device comprises a pressing block (11) and a third cylinder (10), two third cylinders (10) are symmetrically mounted on the transverse bracket (9), and the piston rod end at the lower end of the third cylinder (10) is fixedly connected to the upper end of the pressing block (11), and the contact or separation of the pressing block (11) and the plastic plate (4) is achieved under the drive of the third cylinder (10).

5. The plastic sheet bending device according to claim 1, characterized in that: A vertical spacing scale (10-1) for reflecting the lifting height of the electric heating knife (6) is vertically fixed on the transverse bracket (9).

6. The plastic sheet bending device according to claim 1, characterized in that: The upper ends of the two wide sides of the frame (1) are each provided with a linear guide rail (5), and the lower end of a transverse bracket (9) with an opening facing downward and in a groove-shaped structure is fixedly connected to a slider of the corresponding linear guide rail (5); The telescopic bending device adopts an inclined bending cylinder (2), the lower end of the bending cylinder (2) is hinged to the middle of the long side on the left side of the frame (1), and the upper telescopic end of the bending cylinder (2) is hinged to the bottom of the movable section (3-1) of the bending rotating plate (3).

7. The plastic sheet bending device according to claim 6, characterized in that: The transverse drive device comprises a fourth cylinder (12); a cylinder bracket (13) located outside the linear guide rail (5) is fixed to the upper right ends of the two wide sides of the frame (1); and the right end of the fourth cylinder (12) is fixed to the side wall of the cylinder bracket (13); the piston rod end of the fourth cylinder (12) is fixedly connected to the right side of the transverse bracket (9); and under the synchronous drive of the two fourth cylinders (12), the transverse bracket (9) is moved left and right along the length direction of the linear guide rail (5).

8. The plastic sheet bending device according to claim 7, characterized in that: Horizontal spacing scales (14-2) for reflecting the horizontal movement distance of the transverse bracket (9) are fixed on the outer walls of the two wide sides of the frame (1).

9. The plastic sheet bending device according to claim 1, characterized in that: The length and height of the first pressing and fixing device (15) are both smaller than the length and height of the transverse bracket (9), and the lengths of the bending and rotating plate (3) and the plastic plate (4) are both smaller than the length of the transverse bracket (9).

10. The plastic sheet bending device according to any one of claims 1 to 9, characterized in that: The bending rotating plate (3) comprises a movable section (3-1) and a fixed section (3-2) which are distributed on the left and right and whose upper end surfaces are located on the same plane, the right end of the movable section (3-1) is hinged to the left end of the fixed section (3-2), sensor brackets (14-1) are fixed on the inner walls of both wide sides of the frame (1), and an angle sensor (14) for detecting the rotation angle of the movable section (3-1) is mounted on the sensor bracket (14-1).

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