A bamboo hot-press bending forming device

Abstract

The utility model discloses a bamboo hot pressing bending forming device, including mount, press bending support seat and lower pressure seat, the upper end surface of press bending support seat is provided with first press bending surface, and the both ends of first press bending surface all are provided with the rotation wheel that is tangent to first press bending surface outside, press bending support seat fixed setting is in the mount, and lower pressure seat elevating setting is in the mount, and located the top of press bending support seat, and the horizontal both sides of press bending support seat are provided with clamping device respectively, the utility model discloses setting through setting the rotation wheel on press bending support seat, makes bamboo and rotation wheel abutment place to rotate when pressing into first press bending surface, reduces the friction on bamboo surface, avoids the damage to bamboo, setting motor synchronous belt drive clamping device in the synchronous rotation of reciprocating lead screw shaft, can freely control the reasonable interval of clamping plate, avoids producing the clamping force and causes too tight to the both ends of bamboo and leads to the both ends of bamboo unable to move with bamboo bending.

Description

Technical Field

[0001] This utility model relates to the field of bamboo hot pressing and bending technology, specifically a bamboo hot pressing and bending forming device. Background Technology

[0002] Bamboo, as a renewable resource, possesses characteristics such as high strength, lightweight, and environmental friendliness, making it widely used in furniture manufacturing, architectural decoration, and handicrafts. However, bamboo's naturally straight nature limits its application in curved structures or irregularly shaped components. Traditional bamboo bending techniques mainly rely on manual heating (such as charcoal roasting) followed by manual bending, which is not only inefficient but can also lead to inconsistent bending results for different bamboo strips.

[0003] In the prior art, utility model patent with patent number CN202222161360.2 discloses a bamboo strip hot-pressing bending production device, including a support frame and a lower mold base disposed at the lower part of the support frame. A hydraulic cylinder is fixedly connected to the upper part of the support frame, and the piston rod of the hydraulic cylinder is fixedly connected to an upper mold base. At least one fixing frame is fixedly connected to the upper side of the lower mold base. When using this bamboo strip hot-pressing bending production device, the bamboo strip is placed between the upper mold base and the lower mold base, and then limited by the fixing frame. At the same time, gas is supplied to the sealed shell through the gas conveying component to push the piston plate, so that the sliding clamp can resist and limit the bamboo strip, so that the bamboo strip will not shift or misalign during the bending process.

[0004] The aforementioned patent provides a hot bending device for clamping bamboo strips. By setting sliding clamps to resist and limit the bamboo strips, the device can position them. However, during the bamboo strip bending process, the bamboo strips are gradually pressed into the bending groove of the lower mold base as they deform during bending. This causes displacement between the bamboo strips and the edge of the bending groove, resulting in scratches on the surface of the bamboo strips and affecting their quality. Utility Model Content

[0005] The purpose of this invention is to provide a bamboo hot-pressing bending forming device, which aims to improve the problem that when using existing hot-pressing bending devices to bend bamboo strips, the bamboo strips are gradually pressed into the bending groove of the lower mold base as they are bent and deformed, causing displacement changes between the bamboo strips and the edge of the bending groove of the lower mold base, resulting in scratches on the surface of the bamboo strips and affecting the quality of the bamboo strips.

[0006] This utility model is implemented as follows: a bamboo hot-pressing bending forming device includes a mounting frame, a bending support base, and a lower pressure base. The upper end surface of the bending support base is provided with a first bending surface, and both ends of the first bending surface are provided with rotating wheels tangent to the outside of the first bending surface. The bending support base is fixedly mounted on the mounting frame, and the lower pressure base is lifted and lowered on the mounting frame and located above the bending support base. Clamping devices are respectively provided on the horizontal sides of the bending support base.

[0007] Preferably, the mounting frame includes a base plate, on which a bending support seat is fixedly mounted. A first support rod is mounted on the base plate on the back side of the bending support seat. A mounting plate is mounted on the first support rod above the bending support seat. A lower pressure seat is raised and lowered on the lower end face of the mounting plate.

[0008] Preferably, the lower pressure seat includes an electric telescopic rod, a pair of guide rods are symmetrically arranged on the upper end face of the lower pressure seat, and a second bending surface adapted to the first bending surface is arranged on the lower end face; the lower pressure seat is slidably mounted on the mounting plate through the guide rods; the upper end face of the mounting plate is provided with an electric telescopic rod, and the telescopic end of the electric telescopic rod passes through the mounting plate and is connected to the upper end face of the lower pressure seat.

[0009] Preferably, it also includes a motor; the clamping device includes a reciprocating lead screw shaft and a clamping plate; a pair of reciprocating lead screw shafts are rotatably arranged in the clamping device; the reciprocating lead screw shafts in the clamping devices located on both sides of the bending support are connected to the motor for transmission; a pair of clamping plates are symmetrically arranged on the upper end face of the clamping device, and the pair of clamping plates move relative to each other through the reciprocating lead screw shafts.

[0010] Preferably, the reciprocating lead screw shaft includes a first bevel gear, and one end of the reciprocating lead screw shaft extends through the clamping device to the outside and is provided with the first bevel gear; a power shaft is provided on the output shaft of the motor, and a corresponding second bevel gear is provided on the power shaft at the position of each first bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

[0011] Preferably, the mounting frame further includes a second support rod, and a plurality of second support rods are sequentially arranged on the mounting frame along the length direction of the power shaft, and the power shaft is rotatably mounted on the second support rods.

[0012] Preferably, the clamping plate includes a threaded sleeve, and the lower end of the clamping plate is provided with a corresponding threaded sleeve at the position of each reciprocating screw shaft. The clamping plate is threadedly installed on the reciprocating screw shaft through the threaded sleeve.

[0013] Preferably, it also includes a temperature controller, and heating devices are embedded inside both the bending support and the lower pressure seat, and both are electrically connected to the temperature controller.

[0014] Positive and beneficial effects:

[0015] 1. This utility model, by setting a rotating wheel on the bending support, allows the bamboo to rotate at the contact point with the rotating wheel when it is pressed into the first bending surface, thereby reducing the friction on the bamboo surface and avoiding damage to the bamboo.

[0016] 2. This utility model sets up a motor, a power shaft, a first bevel gear, and a second bevel gear to synchronously drive all the reciprocating screw shafts in the clamping device on both sides of the bending support to rotate synchronously. This allows for free control of a pair of clamping plates to move to a reasonable distance and fit against both sides of the bamboo. This avoids the problem of clamping the bamboo ends too tightly due to clamping force, which would prevent the bamboo ends from moving freely when bending. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a structural schematic diagram of the mounting bracket of this utility model;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the mounting bracket, bending support, and lower pressure seat of this utility model;

[0020] Figure 4 This is a schematic diagram of the rear structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the clamping plate of this utility model.

[0022] In the diagram: 1. Mounting bracket; 101. Base plate; 102. First support rod; 103. Mounting plate; 104. Second support rod; 2. Bending support seat; 201. First bending surface; 202. Rotating wheel; 3. Clamping device; 301. Reciprocating screw shaft; 302. First bevel gear; 303. Clamping plate; 304. Threaded sleeve; 4. Lower pressure seat; 401. Second bending surface; 402. Guide rod; 403. Electric telescopic rod; 5. Motor; 501. Power shaft; 502. Second bevel gear; 6. Temperature controller. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a bamboo hot-pressing bending forming device includes a mounting frame 1, a bending support 2, and a lower pressing seat 4. The upper end surface of the bending support 2 is provided with a first bending surface 201. Both ends of the first bending surface 201 are provided with rotating wheels 202 that are tangent to the outer surface of the first bending surface 201. The rotating wheels 202 are mainly located at the position where the bamboo material abuts against the bending support 2 when it is deformed and pressed into the first bending surface 201. The outer ring surface of the rotating wheels 202 is tangent to the inner ring surface of the first bending surface 201, so that the bamboo material can rotate at the point where it abuts against the rotating wheels 202 when it is pressed into the first bending surface 201, thereby reducing the friction on the surface of the bamboo material and avoiding damage to the bamboo material. The bending support 2 is fixedly mounted on the mounting frame 1, and the lower pressure seat 4 is flexibly mounted on the mounting frame 1 and located above the bending support 2. The mounting frame 1 includes a base plate 101 and a second support rod 104. The bending support 2 is fixedly mounted on the base plate 101, and a first support rod 102 is mounted on the back of the bending support 2 on the base plate 101. A mounting plate 103 is mounted on the first support rod 102 and located above the bending support 2. The lower pressure seat 4 is flexibly mounted on the lower end face of the mounting plate 103. The lower pressure seat 4 includes an electric telescopic rod 403. A pair of guide rods 402 are symmetrically arranged on the upper end face of the lower pressure seat 4, and a second bending surface 401 adapted to the first bending surface 201 is arranged on the lower end face. The lower pressure seat 4 is slidably mounted on the mounting plate 103 through the guide rods 402. The electric telescopic rod 403 is arranged on the upper end face of the mounting plate 103, and the telescopic end of the electric telescopic rod 403 passes through the mounting plate 103 and is connected to the upper end face of the lower pressure seat 4. The lower pressure seat 4 is driven by the electric telescopic rod 403 to gradually press down so that the second bending surface 401 and the first bending surface 201 are adapted and fitted together. This can cause the bamboo to deform between the second bending surface 401 and the first bending surface 201. Furthermore, by setting a pair of guide rods 402, the lower pressure seat 4 can be made to shake during the movement.

[0026] like Figure 2 , Figure 4 and Figure 5 As shown, clamping devices 3 are respectively arranged on both horizontal sides of the bending support 2. A motor 5 is also included. The clamping device 3 includes a reciprocating lead screw shaft 301 and a clamping plate 303. A pair of reciprocating lead screw shafts 301 are rotatably arranged in the clamping device 3. The reciprocating lead screw shafts 301 in the clamping devices 3 located on both sides of the bending support 2 are connected to the motor 5 for transmission. The reciprocating lead screw shaft 301 includes a first bevel gear 302, and one end of the reciprocating lead screw shaft 301 extends through the clamping device 3 to the outside, where the first bevel gear 302 is located. A power shaft 501 is arranged on the output shaft of the motor 5. Multiple second support rods 104 are arranged sequentially along the length direction of the power shaft 501 on the mounting bracket 1. The power shaft 501 is rotatably mounted on the second support rods 104. A corresponding second bevel gear 502 is arranged on the power shaft 501 at the position of each first bevel gear 302, and the first bevel gear 302 and the second bevel gear 502 mesh with each other. The motor 5 synchronously drives all the reciprocating screw shafts 301 on both sides of the bending support 2 to rotate synchronously via the power shaft 501, the first bevel gear 302, and the second bevel gear 502, ensuring consistent operation. A pair of clamping plates 303 are symmetrically arranged on the upper end face of the clamping device 3, and the pair of clamping plates 303 move relative to each other via the reciprocating screw shafts 301. Each clamping plate 303 includes a threaded sleeve 304, and a corresponding threaded sleeve 304 is provided at the lower end of each clamping plate 303 corresponding to the position of each reciprocating screw shaft 301. The clamping plate 303 is threadedly mounted onto the reciprocating screw shaft 301 via the threaded sleeve 304. A pair of reciprocating lead screws 301 are horizontally arranged and can drive a pair of clamping plates 303 to move in opposite directions. This allows the clamping plates 303 to be opened or closed, limiting the width of the bamboo. At the same time, by controlling the clamping plates 303 to move to a reasonable distance, they can fit against both sides of the bamboo, avoiding clamping force that could cause the bamboo ends to be clamped too tightly, preventing the bamboo ends from moving freely when bent.

[0027] like Figure 4As shown, the device also includes a temperature controller 6. Heating devices are embedded inside the bending support 2 and the lower pressure seat 4, and are electrically connected to the temperature controller 6. The heating devices utilize a heating wire heating principle. The heating wire is typically made of a high-resistivity, high-temperature-resistant alloy material (such as nickel-chromium alloy or iron-chromium-aluminum alloy), possessing good thermal conductivity and oxidation resistance, allowing for long-term stable operation in high-temperature environments. When the temperature controller 6 issues a heating command, current flows through the heating wire, and due to the resistance, the current performs work, generating heat. The temperature of the heating wire rises rapidly and is transferred to the surfaces of the bending support 2 and the lower pressure seat 4 through conduction, convection, or radiation. The temperature controller 6 is an intelligent temperature controller with a temperature display screen. It primarily uses a microprocessor or digital signal processor (DSP) to control the heating device. Through the controller's output interface circuit, electrical signals are transmitted to the heating wire to start or adjust its operating state. Simultaneously, the input power of the heating wire can be adjusted using pulse width modulation (PWM) technology or a thyristor power regulator, thereby controlling the heating temperature of the heating device. Example 2

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a bamboo hot-pressing bending forming device includes a mounting frame 1, a bending support 2, and a lower pressure seat 4. The upper end surface of the bending support 2 is provided with a first bending surface 201, and both ends of the first bending surface 201 are provided with rotating wheels 202 that are tangent to the outside of the first bending surface 201. The bending support 2 is fixedly mounted on the mounting frame 1, and the lower pressure seat 4 is lifted and lowered on the mounting frame 1 and located above the bending support 2. The mounting frame 1 includes a base plate 101 and a second support rod 104. The bending support 2 is fixedly mounted on the base plate 101, and a first support rod 102 is provided on the back of the bending support 2 on the base plate 101. A mounting plate 103 is provided on the first support rod 102 and located above the bending support 2. The lower pressure seat 4 is lifted and lowered on the lower end surface of the mounting plate 103. The lower pressure seat 4 includes an electric telescopic rod 403. A pair of guide rods 402 are symmetrically arranged on the upper end face of the lower pressure seat 4, and a second bending surface 401 adapted to the first bending surface 201 is arranged on the lower end face. The lower pressure seat 4 is slidably mounted on the mounting plate 103 through the guide rods 402. The upper end face of the mounting plate 103 is provided with the electric telescopic rod 403, and the telescopic end of the electric telescopic rod 403 passes through the mounting plate 103 and is connected to the upper end face of the lower pressure seat 4.

[0029] like Figure 2 , Figure 4 and Figure 5As shown, clamping devices 3 are respectively arranged on both horizontal sides of the bending support 2. A motor 5 is also included. The clamping device 3 includes a reciprocating lead screw shaft 301 and a clamping plate 303. A pair of reciprocating lead screw shafts 301 are rotatably arranged in the clamping device 3. The reciprocating lead screw shafts 301 in the clamping devices 3 located on both sides of the bending support 2 are connected to the motor 5 for transmission. The reciprocating lead screw shaft 301 includes a first bevel gear 302, and one end of the reciprocating lead screw shaft 301 extends through the clamping device 3 to the outside, where the first bevel gear 302 is located. A power shaft 501 is arranged on the output shaft of the motor 5. Multiple second support rods 104 are arranged sequentially along the length direction of the power shaft 501 on the mounting bracket 1. The power shaft 501 is rotatably mounted on the second support rods 104. A corresponding second bevel gear 502 is arranged on the power shaft 501 at the position of each first bevel gear 302, and the first bevel gear 302 and the second bevel gear 502 mesh with each other. The clamping device 3 has a pair of clamping plates 303 symmetrically arranged on its upper end face, and the pair of clamping plates 303 move relative to each other through a reciprocating lead screw shaft 301. The clamping plate 303 includes a threaded sleeve 304, and the lower end of the clamping plate 303 is provided with a corresponding threaded sleeve 304 at the position of each reciprocating lead screw shaft 301. The clamping plate 303 is threadedly installed on the reciprocating lead screw shaft 301 through the threaded sleeve 304. In addition, a temperature controller 6 is also included. Heating devices are embedded inside the bending support 2 and the lower pressure seat 4, and are electrically connected to the temperature controller 6.

[0030] The working principle of this utility model is as follows: During use, bamboo is placed on the bending support 2, with both ends positioned in corresponding clamping devices 3. The motor 5, via the power shaft 501, the first bevel gear 302, and the second bevel gear 502, synchronously drives all the reciprocating screw shafts 301 in the clamping devices 3 on both sides of the bending support 2 to rotate synchronously. This causes a pair of clamping plates 303 to move in opposite directions, limiting the width of the bamboo. Simultaneously, by controlling the pair of clamping plates 303 to move to a reasonable distance and fit snugly against both sides of the bamboo, the problem of excessive clamping force preventing the bamboo ends from moving freely during bending is avoided. The lower pressing seat 4, driven by the electric telescopic rod 403, gradually presses down, causing the second bending surface 401 and the first bending surface 201 to fit together. This causes deformation of the bamboo between the second bending surface 401 and the first bending surface 201. Furthermore, by setting a pair of guide rods 402, the shaking of the lower pressing seat 4 during movement can be prevented. The outer ring surface of the rotating wheel 202 is tangent to the inner ring surface of the first bending surface 201, so that the bamboo material can rotate at the contact point with the rotating wheel 202 when it is pressed into the first bending surface 201, thereby reducing the friction on the surface of the bamboo material and avoiding damage to the bamboo material.

[0031] In summary, this utility model, by setting a rotating wheel 202 on the bending support 2, allows the bamboo to rotate at the contact point with the rotating wheel 202 when pressed into the first bending surface 201, reducing friction on the bamboo surface and preventing damage. Furthermore, by setting the motor 5, power shaft 501, first bevel gear 302, and second bevel gear 502 to synchronously drive all the reciprocating screw shafts 301 in the clamping devices 3 on both sides of the bending support 2 to rotate synchronously, the pair of clamping plates 303 can be freely controlled to move to a reasonable distance and fit against both sides of the bamboo, avoiding the problem of excessive clamping force that prevents the bamboo ends from moving freely during bending.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bamboo hot-press bending forming device, comprising a mounting frame (1), a bending support (2), and a lower pressure seat (4), characterized in that, The upper end face of the bending support (2) is provided with a first bending surface (201), and both ends of the first bending surface (201) are provided with rotating wheels (202) that are tangent to the outside of the first bending surface (201); the bending support (2) is fixedly mounted on the mounting frame (1), and the lower pressure seat (4) is raised and lowered on the mounting frame (1) and located above the bending support (2); clamping devices (3) are respectively provided on the horizontal sides of the bending support (2).

2. The bamboo hot-pressing bending forming device according to claim 1, characterized in that, The mounting bracket (1) includes a base plate (101), on which a bending support seat (2) is fixedly installed. A first support rod (102) is provided on the back of the bending support seat (2) on the base plate (101). A mounting plate (103) is provided on the first support rod (102) above the bending support seat (2). A lower pressure seat (4) is provided on the lower end face of the mounting plate (103).

3. The bamboo hot-pressing bending forming device according to claim 2, characterized in that, The lower pressure seat (4) includes an electric telescopic rod (403). A pair of guide rods (402) are symmetrically arranged on the upper end face of the lower pressure seat (4), and a second pressure bending surface (401) adapted to the first pressure bending surface (201) is arranged on the lower end face. The lower pressure seat (4) is slidably mounted on the mounting plate (103) through the guide rods (402). An electric telescopic rod (403) is arranged on the upper end face of the mounting plate (103), and the telescopic end of the electric telescopic rod (403) passes through the mounting plate (103) and is connected to the upper end face of the lower pressure seat (4).

4. The bamboo hot-pressing bending forming device according to claim 1, characterized in that, It also includes a motor (5); the clamping device (3) includes a reciprocating lead screw shaft (301) and a clamping plate (303); a pair of reciprocating lead screw shafts (301) are rotatably arranged in the clamping device (3); the reciprocating lead screw shafts (301) in the clamping device (3) located on both sides of the bending support (2) are all connected to the motor (5) for transmission; a pair of clamping plates (303) are symmetrically arranged on the upper end face of the clamping device (3), and the pair of clamping plates (303) move relative to each other through the reciprocating lead screw shafts (301).

5. The bamboo hot-pressing bending forming device according to claim 4, characterized in that, The reciprocating lead screw shaft (301) includes a first bevel gear (302). One end of the reciprocating lead screw shaft (301) extends through the clamping device (3) to the outside and is provided with the first bevel gear (302). The output shaft of the motor (5) is provided with a power shaft (501). The power shaft (501) is provided with a corresponding second bevel gear (502) at the position of each first bevel gear (302). The first bevel gear (302) and the second bevel gear (502) mesh with each other.

6. The bamboo hot-pressing bending forming device according to claim 5, characterized in that, The mounting frame (1) also includes a second support rod (104). Multiple second support rods (104) are arranged sequentially along the length direction of the power shaft (501) on the mounting frame (1). The power shaft (501) is rotatably mounted on the second support rods (104).

7. The bamboo hot-pressing bending forming device according to claim 4, characterized in that, The clamping plate (303) includes a threaded sleeve (304). The lower end of the clamping plate (303) is provided with a corresponding threaded sleeve (304) at the position of each reciprocating screw shaft (301). The clamping plate (303) is threadedly installed on the reciprocating screw shaft (301) through the threaded sleeve (304).

8. The bamboo hot-pressing bending forming device according to claim 4, characterized in that, In addition, a temperature controller (6) is included. The bending support (2) and the lower pressure seat (4) are both equipped with heating devices and are electrically connected to the temperature controller (6).

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