Bending device for thermoplastic sheet
By designing a thermoplastic thin plate bending device with slide rails and sliders, the problem of low efficiency and stability of the heating device in the prior art is solved, and an efficient and uniform heating effect is achieved.
Patent Information
- Application Number
- CN202422218294.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the existing thermoplastic material processing equipment, the efficiency and stability of the heating device are low, resulting in poor heating effect.
A bending device for thermoplastic thin sheets is designed, including a base, a bending mold and a heating device. The heating device extends in the horizontal direction, and the reciprocating movement is achieved in the second horizontal direction by the first driving device, close to or away from the lower mold to heat the to-be-bend of the thin plate. The base is equipped with slide rails and sliders to ensure stable movement of the heating device and avoid tilting and uneven heating.
The heating efficiency is improved, the temperature at the bend is consistent, and the stability is good, avoiding the problems of uneven heating and bumping of thin plates.
Smart Images
Figure CN223013876U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermoplastic material processing equipment, and particularly relates to a bending device for thermoplastic thin plates. Background Art
[0002] Thermoplastic materials are materials with high strength, high toughness, light weight, and easy secondary forming processing, and are widely used in the fields of building decoration, vehicle transportation, oil and water transportation, and new energy. The main product forms include continuous fiber prepreg tapes, solid plates, sandwich plates, molded special-shaped parts, etc. In actual production, it is necessary to perform long-edge edge bending processing on thin plates used to manufacture certain large-sized components. The bending device is usually provided with a heating device to heat and bend the plate. However, in the prior art, the heating device has problems of poor heating effect due to low efficiency or low stability.
[0003] Therefore, a bending device for thermoplastic thin plates is needed to at least partially solve the above problems. Summary of the Utility Model
[0004] A series of simplified concepts are introduced in the summary of the utility model, which will be further described in detail in the specific implementation section. The summary of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.
[0005] To at least partially solve the above problems, the utility model provides a bending device for thermoplastic thin plates, and the bending device includes:
[0006] A base, and the base is provided with a first driving device;
[0007] A bending die, which extends along the first horizontal direction, and the bending die includes a lower die fixed to the base; and
[0008] A heating device, which extends along the first horizontal direction, and under the drive of the first driving device, reciprocates along the second horizontal direction to approach or move away from the lower die, and the upper surface of the heating device is not higher than the upper surface of the lower die;
[0009] Wherein, the base is provided with a slide rail extending along the second horizontal direction, the slide rail is slidably connected with a slider, and the heating device is fixedly connected with the slider.
[0010] According to the bending device of the present utility model, when performing a bending operation on a thermoplastic thin plate, both the heating device and the bending die extend along the first horizontal direction, so that the heating device can heat the area to be bent of the thin plate simultaneously in the first direction, thereby having a high heating efficiency and a consistent temperature at the area to be bent. The base is provided with a slide rail extending along the second horizontal direction, and the heating device moves along the slide rail through a slider, so that the movement stability of the heating device is good, and thus the problems of bumping against the thin plate or uneven heating of the thin plate caused by the inclination of the heating device can be avoided.
[0011] Optionally, at least two of the slide rails are arranged at intervals along the first horizontal direction.
[0012] Optionally, the bending die further includes an upper die, and the upper die reciprocates in the height direction under the drive of a second driving device to approach or move away from the lower die, where the height direction is perpendicular to the first direction and the second direction.
[0013] Optionally, the upper die and the second driving device are arranged above the lower die through a bracket, and the bracket includes:
[0014] Side plates, at least two of the side plates are fixedly spaced apart from the base; and
[0015] A support plate, connected to the upper part of the side plates, for fixing the second driving device, wherein the second driving device passes through the support plate to connect the upper die.
[0016] Optionally, the upper die is provided with a guide rod, and the guide rod is movably disposed through the support plate along the height direction, and the lower end of the guide rod is connected to the upper die.
[0017] Optionally, the upper die includes a horizontal part and a downward extension part, and the downward extension part extends downward from a side of the horizontal part close to the heating device, so that when the upper die moves downward, the lower end of the downward extension part is lower than the upper surface of the lower die and is located on a side of the lower die facing the heating device.
[0018] Optionally, the bending device further includes at least two positioning members arranged at intervals, the positioning members are fixed to the base through a support member, and are located on a side of the lower die away from the heating device, the positioning members are disposed on the upper surface of the support member, and the upper surface of the positioning members is higher than the upper surface of the lower die.
[0019] Optionally, the upper surface of the support member is flush with the upper surface of the lower die.
[0020] Optionally, in the first horizontal direction, the size of the heating device is not less than the size of the bending die; and / or
[0021] The movable end of the first driving device is provided with a mounting plate, the heating device is fixed to the mounting plate, and the slider is fixed to the lower side of the mounting plate.
[0022] Optionally, the first driving device is supported on the base by at least two fixing members spaced along the second horizontal direction; and / or
[0023] A reinforcing plate is connected between the side plates. Description of the Drawings
[0024] The following drawings of the present utility model are used as a part of the present utility model to understand the present utility model. The embodiments and descriptions of the present utility model are shown in the drawings to explain the principles of the present utility model.
[0025] Figure 1 Schematic diagram of the working state of the bending device according to the specific embodiment of the present utility model;
[0026] Figure 2 Schematic diagram of the bending device according to the specific embodiment of the present utility model;
[0027] Figure 3 Schematic diagram of the bending device from another perspective according to the specific embodiment of the present utility model;
[0028] Figure 4 Schematic side view of the bending device according to the specific embodiment of the present utility model; and
[0029] Figure 5 For Figure 2 Partial enlarged view of area A in
[0030] Description of the reference numerals:
[0031] 10: Base
[0032] 20: Bending die
[0033] 21: Lower die
[0034] 22: Upper die
[0035] 221: Horizontal part
[0036] 222: Lower extension part
[0037] 223: Transition inclined plane
[0038] 23: Second driving device
[0039] 30: Heating device
[0040] 31: First driving device
[0041] 32: Mounting plate
[0042] 321: Fixed block
[0043] 33: Fastening piece
[0044] 40: Slide rail
[0045] 41: Slide block
[0046] 50: Bracket
[0047] 51: Side plate
[0048] 52: Support plate
[0049] 53: Reinforcement plate
[0050] 60: Guide rod
[0051] 70: Support member
[0052] 71: Positioning member
[0053] 80: Frame
[0054] 100: Bending device
[0055] 200: Thin plate
[0056] D1: First horizontal direction
[0057] D2: Second horizontal direction
[0058] D3: Height direction Detailed implementation manners
[0059] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features known to the public are not described.
[0060] In order to thoroughly understand the present utility model, a detailed description will be presented in the following. It should be understood that these embodiments are provided to make the disclosure of the present utility model complete and thorough, and to fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the present utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model can also have other implementation manners.
[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.
[0062] The ordinal numbers such as "first" and "second" cited in the present utility model are only identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".
[0063] It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used herein are only for illustrative purposes and are not restrictive.
[0064] Now, reference will be made to the appended Figures 1 to 5 Exemplary embodiments according to the present utility model will be described in more detail.
[0065] As Figure 1 shown, the bending device 100 in the specific embodiment of the present utility model includes a base 10, a bending die 20 and a heating device 30, which are used to heat and bend a thermoplastic thin plate 200 (such as a container door panel made of continuous fiber reinforced composite material, etc.). Among them, the base 10 is placed substantially horizontally. The bending die 20 extends along a first horizontal direction D1 and is used to apply pressure to the edge of one end of the thin plate 200 to bend it. The bending die 20 includes a lower die 21 fixed to the base 10. For example, the lower die 21 is in the shape of a long strip extending along the first horizontal direction D1 and has a flat upper surface with a certain width. The lower die 21 is used to support the end of the thin plate 200 to be bent. The heating device 30 (such as a carbon fiber heating tube) also extends along the first horizontal direction D1, and the upper surface of the heating device 30 is not higher than the upper surface of the lower die 21, so as to heat the thin plate 200 along the bending part below the thin plate 200. Before bending the thin plate 200, the heating device 30 first heats the part to be bent, which can make the thermoplastic thin plate be bent smoothly and the outer surface after forming is intact. The heating device 30 has a certain length in the first horizontal direction D1, and can heat the entire length of the part to be bent of the thin plate 200 along the first horizontal direction D1 at the same time.
[0066] The base 10 is further provided with a first driving device 31 (such as an electric telescopic rod, a cylinder, a hydraulic cylinder, etc.). The first driving device 31 is used to drive the heating device 30 to reciprocate along the second horizontal direction D2 so as to approach or move away from the lower mold 21, that is, approach or move away from the lower part of the thin plate 200. Since the heating device 30 has a certain length in the first horizontal direction D1, in order to make the movement of the heating device 30 smoother and avoid shaking or tilting, which may cause the heating device 30 to collide with the thin plate 200 or the distances between the two ends of the heating device 30 and the thin plate 200 to be different, resulting in uneven heating, a slide rail 40 extending along the second horizontal direction D2 is provided on the base 10. A slider 41 is slidably connected to the slide rail 40, and the heating device 30 is fixedly connected to the slider 41. The slider 41 and the slide rail 40 can be set to sliding fit, rolling fit, gas static pressure fit, liquid static pressure fit, etc. The slider 41 can be located above or on the side of the slide rail 40. The connection method between the slider 41 and the slide rail 40 is not specifically limited herein.
[0067] When bending the thin plate 200, the thin plate 200 is placed above the lower mold 21, and the edge of the thin plate 200 to be bent extends beyond the lower mold 21 on the side facing the heating device 30 of the lower mold 21. The lower mold 21 has a supporting effect on the thin plate 200. After the thin plate 200 is placed on the lower mold 21, the first driving device 31 drives the heating device 30 to move towards the lower mold 21 until it reaches below the edge of the thin plate 200 to be bent, and heats the edge of the thin plate 200 to be bent. For example, the temperature of the door panel is raised to 150°C - 170°C. After heating is completed, the first driving device 31 drives the heating device 30 to move away from the lower mold 21, and the heating device 30 leaves the lower part of the thin plate 200. Then the bending device 20 performs a bending operation on the thin plate 200. The horizontal distance between the heating device 30 and the lower mold 21 can be adjusted, so that the bending device 100 can be applicable to the processing of different bending lengths of the edges of the thin plate 200, and the applicable range is wider.
[0068] The height of the heating device 30 can be set such that the upper surface is substantially flush with the upper surface of the lower mold 21, so that the heating device 30 contacts the lower surface of the thin plate 200 to heat the thin plate 200.
[0069] In some preferred embodiments, at least two slide rails 40 are arranged at intervals along the first horizontal direction D1. As Figure 2 and Figure 3 shown, two slide rails 40 are arranged at intervals along the first horizontal direction D1 and respectively support both ends of the heating device 30, making the movement of the heating device 30 smoother.
[0070] The bending die 20 further includes an upper die 22. The upper die 22 reciprocates in the height direction D3 under the drive of a second drive device 23 (such as an electric telescopic rod, a cylinder, a hydraulic cylinder, etc.) to approach or move away from the lower die 21, so as to apply a downward pressure to the edge of the thin plate 200 that extends beyond the lower die 21 in the second horizontal direction D2. Cooperating with the lower die 21, the edge is bent downward. The height direction D3 is perpendicular to the first horizontal direction D1 and the second horizontal direction D2.
[0071] Specifically, the upper die 22 and the second drive device 23 are arranged above the lower die 21 through a bracket 50. The bracket 50 can provide an upward supporting effect on the upper die 22 and the second drive device 23, so that they are located above the lower die 21. At the same time, when the upper die 22 presses down on the thin plate 200, the bracket 50 provides a downward force for the second drive device 23, so that the upper die 22 can apply a sufficient large pressure to the thin plate 200. For example, the bracket 50 is arranged to include side plates 51 and a support plate 52. At least two side plates 51 are fixedly spaced apart from the base 10, and the support plate 52 is connected to the upper part of the side plates 51 for fixing the second drive device 23. Among them, the movable end of the second drive device 23 passes through the support plate 52 and is connected to the upper part of the upper die 22. That is, the upper die 22 is located below the support plate 52 and reciprocates in the height direction D3 driven by the movable end of the second drive device 23 fixed to the support plate 52. In addition, one or more reinforcing plates 53 can be connected between the side plates 51 to enhance the strength and stability of the bracket 50.
[0072] To make the movement of the upper die 22 more stable, the upper die 22 is provided with guide rods 60 to limit the upper die 22 in the horizontal direction. The upper die 22 can be provided with two or more guide rods 60. As Figure 1 、 Figure 3 and Figure 4 shown, the support plate 52 has through holes (guide holes), and the guide rods 60 are movably passed through the guide holes of the support plate 52 along the height direction D3, and the lower ends of the guide rods 60 are fixedly connected to the upper die 22. The inner diameter of the guide hole is approximately equal to or slightly larger than the outer diameter of the guide rod 60, and the contact surface between the guide hole and the guide rod 60 is smooth. The support plate 52 has a guide hole on each side of the second drive device 23, and two guide rods 60 are respectively passed through the guide holes and connected to both ends of the upper die 22.
[0073] In some specific embodiments, such as Figure 4As shown, the upper die 22 includes a horizontal portion 221 and a downward extension portion 222. The downward extension portion 222 extends downward from the side of the horizontal portion 221 close to the heating device 30. The horizontal portion 221 and the downward extension portion 222 form a groove with a certain angle (such as a right angle) downward, so that when the upper die 22 moves downward, the lower end of the downward extension portion 222 is lower than the upper surface of the lower die 21 and is located on the side of the lower die 21 facing the heating device 30. The lower surface of the horizontal portion 221 clamps the thin plate 200 with the upper surface of the lower die 21. The upper die 22 is adapted to the shape of the lower die 21 to cooperate with the lower die 21 to bend and shape the thin plate 200. The lower end of the downward extension portion 222 has a transition inclined surface 223, so as to facilitate the transfer of the acting point of the downward extension portion 222 on the thin plate 200 from the bottom end of the downward extension portion 222 to the side portion during the downward bending process of the edge of the thin plate 200, so as to have a horizontal acting force on the edge and continue to bend the edge more labor-savingly.
[0074] In some preferred embodiments, as Figure 3 and Figure 4 shown, the bending device 100 further includes at least two positioning members 71 arranged at intervals, which are used to position the thin plate 200. The positioning members 71 are fixed to the base 10 through the support members 70 and are located on the side of the lower die 21 away from the heating device 30. The upper surface of the positioning member 71 is higher than the upper surface of the lower die 21. The thin plate 200 has receiving holes or through holes, and the upper ends of at least two positioning members 71 arranged at intervals respectively enter the corresponding receiving holes or through holes of the thin plate 200 to position the thin plate 200. The at least two positioning members 71 can be arranged along the first horizontal direction D1 or in other directions. The support member 70 can be set as a long strip parallel to the lower die 21, or can be set in other shapes. Preferably, the upper surface of the support member 70 is flush with the upper surface of the lower die 21.
[0075] To enable the edge to be bent to be heated simultaneously, in the first horizontal direction D1, the size of the heating device 30 (such as the length of the carbon fiber heating tube) is not less than the size of the bending die 20, that is, in the first horizontal direction D1, the size of the heating device 30 is not less than the size of the lower die 21 or the upper die 22.
[0076] In some preferred embodiments, as Figure 2As shown, the first driving device 31 is supported on the base 10 by at least two fixing members 33 spaced along the second horizontal direction D2, so that the installation of the first driving device 31 is stable and the first driving device 31 has a certain height to correspond to the heating device 30 located above the slide rail in height. An installation plate 32 is provided at the movable end of the first driving device 31. The heating device 30 is fixed to the installation plate 32 through the fixing blocks 321 at both ends. The slider 41 is fixed to the lower side of the installation plate 32. Thus, the installation plate 32 can control the synchronous movement of the heating device 30 in the second horizontal direction D2. Especially when there are two or more slide rails 40, it is ensured that the heating device 30 slides synchronously on the slide rails 40.
[0077] A frame 80 can be provided below the base 10 and the thin plate 200 to support the base 10 and the thin plate 200. Openings are provided at the corners of the base 10 to be fixedly connected to the frame 80 through connecting members.
[0078] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present utility model. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.
[0079] The present utility model has been illustrated by the above embodiments. However, it should be understood that the above embodiments are only for the purpose of exemplification and illustration, and the present utility model is not limited to the above embodiments. More variations and modifications can be made according to the teachings of the present utility model, and these variations and modifications all fall within the scope of protection required by the present utility model.
Claims
1. A thermoplastic sheet bending device, characterized in that: The bending device comprises: A base, wherein the base is provided with a first driving device; A bending mold extending along a first horizontal direction, the bending mold comprising a lower mold fixed to the base; and A heating device, the heating device is extended along the first horizontal direction, and driven by the first driving device to reciprocate along the second horizontal direction to approach or move away from the lower mold, and the upper surface of the heating device is not higher than the upper surface of the lower mold; Wherein, the base is provided with a slide rail extending along the second horizontal direction, the slide rail is slidably connected with a slider, and the heating device is fixedly connected to the slider.
2. The bending device according to claim 1, characterized in that: At least two of the slide rails are spaced apart along the first horizontal direction.
3. The bending device according to claim 1, characterized in that: The bending mold also includes an upper mold, which is driven by a second driving device to reciprocate along a height direction to approach or move away from the lower mold, and the height direction is perpendicular to the first horizontal direction and the second horizontal direction.
4. The bending device according to claim 3, characterized in that: The upper mold and the second driving device are arranged above the lower mold through a bracket, and the bracket includes: Side panels, at least two of which are fixed to the base at intervals; and A support plate is connected to the upper portion of the side plate and is used for fixing the second driving device, wherein the second driving device passes through the support plate to connect to the upper mold.
5. The bending device according to claim 4, characterized in that: The upper mold is provided with a guide rod, and the guide rod is movably arranged on the support plate along the height direction, and the lower end of the guide rod is connected to the upper mold.
6. The bending device according to claim 3, characterized in that: The upper mold includes a horizontal portion and a downward extension portion, wherein the downward extension portion extends downward from a side of the horizontal portion close to the heating device, so that the upper mold moves during the downward movement to a point where the lower end of the downward extension portion is lower than the upper surface of the lower mold and is located on the side of the lower mold facing the heating device.
7. The bending device according to claim 1, characterized in that: The bending device also includes at least two positioning members arranged at intervals, which are fixed to the base through a support member and are located on a side of the lower mold away from the heating device. The positioning member is arranged on the upper surface of the support member, and the upper surface of the positioning member is higher than the upper surface of the lower mold.
8. The bending device according to claim 7, characterized in that: The upper surface of the support member is flush with the upper surface of the lower mold.
9. The bending device according to claim 1, characterized in that: In the first horizontal direction, the size of the heating device is not less than the size of the bending mold; and / or The movable end of the first driving device is provided with a mounting plate, the heating device is fixed to the mounting plate, and the sliding block is fixed to the lower side of the mounting plate.
10. The bending device according to claim 4, characterized in that: The first driving device is supported on the base by at least two fixing members spaced apart along the second horizontal direction; and / or A reinforcement plate is connected between the side plates.