CN114311193B - Anti-cracking bamboo batten bending and shaping device and method - Google Patents
Anti-cracking bamboo batten bending and shaping device and method Download PDFInfo
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- CN114311193B CN114311193B CN202210050389.5A CN202210050389A CN114311193B CN 114311193 B CN114311193 B CN 114311193B CN 202210050389 A CN202210050389 A CN 202210050389A CN 114311193 B CN114311193 B CN 114311193B
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Abstract
The invention relates to the technical field of bamboo product processing equipment, in particular to an anti-cracking bamboo batten press bending and shaping device and a method thereof.
Description
Technical Field
The invention relates to the technical field of bamboo product processing equipment, in particular to an anti-cracking bamboo batten bending and shaping device and method.
Background
The bamboo material has the advantages of high hardness, good stability and short growth cycle, and is widely applied to furniture and articles for daily use, one purpose of the bamboo material is to bend bamboo strips into a round shape to be used as a frame of a food box or a tea box, and in the prior art, the bending of the bamboo strips into the round shape is usually completed by a bending and shaping die.
Chinese patent No. CN206106035U discloses a high-efficiency bending and shaping mold for bamboo, which is characterized in that a cylindrical inner mold and a plurality of arc-shaped outer molds are matched with each other to press bamboo strips into a circular shape, the efficiency of the structure and the method for pressing bamboo strips into a circular shape is high, but the defective rate of the circular bamboo strips formed by pressing is high, most of the circular bamboo strips have cracks with different degrees, the cracks can only be covered by later-stage repair, the aesthetic property and the structural stability of the bamboo strips as food boxes are affected, and the circular bamboo strips with large cracking degree are even directly scrapped, so that the bamboo is seriously wasted, and the environment is not protected.
Therefore, on the premise of ensuring efficient shaping, the technical problem to be solved urgently is to develop the anti-cracking bamboo batten bending and shaping device and the method thereof.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: on the premise of ensuring efficient shaping, a bamboo batten bending and shaping device and method capable of preventing cracking are developed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a bamboo strip bending setting device of preventing ftractureing, includes:
a base;
the cylindrical die is fixed on the base;
the first driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, a cylinder body of the first driving cylinder is fixed on the base, a piston rod of the first driving cylinder is perpendicular to the axis of the cylindrical die, and the axis of the first driving cylinder is positioned in the same plane;
the clamping block is connected to the end part of a piston rod of the first driving cylinder;
the subassembly of bending, 2 the subassembly symmetry of bending sets up the both sides at cylindrical die and first actuating cylinder, the subassembly of bending includes:
the screw rod guide rail mechanism comprises a screw rod body, a guide rail body parallel to the screw rod body and a driving motor, and the driving motor is in transmission connection with the screw rod body and is used for driving the screw rod to rotate;
the sliding block is connected with the screw rod guide rail mechanism in a sliding manner;
the second driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, the cylinder body of the second driving cylinder is connected to the sliding block, and the piston rod of the second driving cylinder faces the circumferential surface of the cylindrical mold;
the compression roller is rotatably connected to the end part of the piston rod of the second driving cylinder;
and the PLC is electrically connected with the first driving cylinder, the second driving cylinder and the driving motor respectively.
Further, in the above-mentioned bamboo strip bending setting device structure of preventing ftractureing, still include: centre gripping positioning mechanism, it is a plurality of centre gripping positioning machine constitutes circumference array distribution and sets up on cylindrical mould's disc, centre gripping positioning mechanism includes:
the third driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, and the cylinder body of the third driving cylinder is hinged to the circular surface of the cylindrical die;
one end of the L-shaped clamp is hinged to the round surface of the cylindrical die, and the right-angle side where the one end of the L-shaped clamp is located is hinged to the end portion of a piston rod of the third driving cylinder through a connecting piece;
a pressure sensor is arranged on the circumferential surface of the cylindrical die corresponding to the position of each clamping and positioning mechanism;
and the PLC is electrically connected with the third driving cylinder and the pressure sensor.
Furthermore, in the anti-cracking bamboo batten bending and shaping device structure, one side of the cylindrical die, which is far away from the position of the clamping block, is provided with an additional clamping and positioning mechanism.
Further, in the anti-cracking bamboo batten bending and shaping device structure, a heating device is arranged inside the cylindrical die and used for heating the circumferential surface of the cylindrical die.
Further, in the above-mentioned bamboo strip bending setting device structure of preventing ftractureing, the compression roller is equipped with heating device.
Further, in the anti-cracking bamboo batten bending and shaping device structure, one surface of the clamping block, which is close to the cylindrical die, is an arc surface, and the axis of the arc surface is overlapped with the axis of the cylindrical die.
The invention also protects a method for bending the bamboo strips by using the anti-cracking bamboo strip bending and shaping device, which comprises the following steps:
cutting the bamboo strips to be bent into strips with the length consistent with the perimeter of the cylindrical mold;
the middle part of the cut bamboo batten is positioned on one side, close to the clamping block, of the cylindrical die, and the PLC controls a piston rod of the first driving cylinder to move, so that the clamping block moves towards the cylindrical die, and the middle part of the bamboo batten is clamped and positioned on the cylindrical die;
the PLC controls the driving motor to drive the screw rod body to rotate, the sliding block moves from one end, close to the first driving cylinder, of the screw rod body to one end, far away from the first driving cylinder, the PLC controls the piston rod of the second driving cylinder to move in a stretching mode, the compression roller is pressed on the surface of the bamboo strip to roll along the circumferential surface of the cylindrical mold until the bamboo strip is completely attached to the circumferential surface of the cylindrical mold, and the bamboo strip is bent into a circular ring shape.
Furthermore, the anti-cracking bamboo batten bending and shaping device is used for a method for bending bamboo battens, and the method comprises the steps that when the bamboo battens are pressed against the circumferential surface of the cylindrical mold, corresponding pressure sensors are triggered, the PLC receives signals transmitted by the pressure sensors, the PLC controls third driving cylinders in corresponding positions to act, and the L-shaped clamps are driven to clamp the bamboo battens in the positions to perform auxiliary fixing.
Further, the anti-cracking bamboo batten bending and shaping device is used for a method for bending bamboo battens, and comprises the following steps: the middle part of the cut bamboo strip is positioned at one side of the cylindrical mould close to the clamping block, and the method also comprises the step of heating the circumferential surface of the cylindrical mould by a heating device.
The invention has the beneficial effects that: the invention aims at the requirements of tea boxes or food boxes or other purposes in the prior art, improves the device for bending and processing bamboo strips into circular rings and the process method thereof, and aims at improving the problem of high defective rate caused by easy cracking of the bamboo strips in the process of performing one-time press molding through a cylindrical inner die and a plurality of circular arc-shaped outer dies in the prior art.
The bamboo batten is pressed and formed step by step in a mode that the middle of the bamboo batten is clamped through the matching of the clamping block and the cylindrical die, and the lead screw guide rail mechanisms and the driving cylinders on the two sides drive the pressing rollers to slowly fit the circumferential surface of the cylindrical die from the positioning area of the middle of the bamboo batten to the two ends, although the efficiency is reduced to some extent compared with the prior art, the efficiency is still obviously improved compared with a purely manual manufacturing process.
Drawings
Fig. 1 is a schematic structural diagram of a cracking-proof bamboo batten bending and shaping device according to an embodiment of the invention;
FIG. 2 is a sectional view taken along line A of FIG. 1;
description of reference numerals:
1. a base; 2. a cylindrical mold; 3. a first drive cylinder; 4. a clamping block; 5. a press bending assembly; 51. a screw guide rail mechanism; 511. a screw body; 512. a guide rail body; 513. a drive motor; 52. a slider; 53. a second drive cylinder; 54. a compression roller; 6. a clamping and positioning mechanism; 61. a third drive cylinder; 62. an L-shaped clamp; 7. and (5) bamboo splints.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Example 1
Referring to fig. 1 and 2, an anti-cracking bamboo batten 7 bending and shaping device includes:
a base 1;
the cylindrical die 2 is fixed on the base 1;
the first driving cylinder 3 is an air cylinder, a hydraulic cylinder or an electric cylinder, preferably an air cylinder, the cylinder body of the first driving cylinder 3 is fixed on the base 1, the piston rod of the first driving cylinder 3 is perpendicular to the axis of the cylindrical die 2, and the axis of the piston rod is in the same plane;
the clamping block 4 is connected to the end part of the piston rod of the first driving cylinder 3;
the press bending assembly 5,2 the press bending assembly 5 is symmetrically arranged at two sides of the cylindrical die 2 and the first driving cylinder 3, and the press bending assembly 5 comprises:
the screw rod guide rail mechanism 51 comprises a screw rod body 511, a guide rail body 512 parallel to the screw rod body 511 and a driving motor 513, wherein the driving motor 513 is in transmission connection with the screw rod body 511 and is used for driving the screw rod to rotate;
the sliding block 52 is connected with the screw rod guide rail mechanism 51 in a sliding way;
a second driving cylinder 53, wherein the second driving cylinder 53 is an air cylinder, a hydraulic cylinder or an electric cylinder, preferably an air cylinder, a cylinder body of the second driving cylinder 53 is connected to the slide block 52, and a piston rod of the second driving cylinder 53 faces the circumferential surface of the cylindrical mold 2;
a pressing roller 54, the pressing roller 54 being rotatably connected to a piston rod end of the second driving cylinder 53;
and the PLC is electrically connected with the first driving cylinder 3, the second driving cylinder 53 and the driving motor 513 respectively.
The method for bending the bamboo battens 7 by using the anti-cracking bamboo batten 7 bending and shaping device comprises the following steps:
cutting the bamboo strips 7 to be bent into pieces with the length consistent with the perimeter of the cylindrical mold 2;
the middle part of the cut bamboo batten 7 is positioned at one side of the cylindrical die 2 close to the clamping block 4, and the PLC controls the piston rod of the first driving cylinder 3 to move, so that the clamping block 4 moves towards the cylindrical die 2, and the middle part of the bamboo batten 7 is clamped and positioned on the cylindrical die 2;
the PLC controls the driving motor 513 to drive the screw rod body 511 to rotate, so that the sliding block 52 moves from one end, close to the first driving cylinder 3, of the screw rod body 511 to one end, far away from the first driving cylinder 3, meanwhile, the PLC controls the piston rod of the second driving cylinder 53 to move in a telescopic mode, the pressing roller 54 is pressed against the surface of the bamboo batten 7 to roll along the circumferential surface of the cylindrical mold 2 until the bamboo batten 7 is completely attached to the circumferential surface of the cylindrical mold 2, and the bamboo batten 7 is pressed and bent into a circular ring shape.
In the scheme, the middle of the bamboo batten 7 is clamped through the matching of the clamping block 4 and the cylindrical mold 2, and then the bamboo batten 7 is gradually pressed and molded in a mode that the compression roller 54 is driven by the lead screw guide rail mechanisms and the driving cylinders on the two sides to be slowly attached to the circumferential surface of the cylindrical mold 2 from the positioning area in the middle of the bamboo batten 7 to the two ends.
Example 2
The bamboo batten 7 bending and shaping device for preventing cracking in embodiment 1 further comprises: the centre gripping positioning mechanism 6, it is a plurality of centre gripping positioning mechanism 6 becomes the circumference array distribution and sets up on cylindrical mold 2's disc, centre gripping positioning mechanism 6 includes:
the third driving cylinder 61 is an air cylinder, a hydraulic cylinder or an electric cylinder, preferably an air cylinder, and the cylinder body of the third driving cylinder 61 is hinged to the circular surface of the cylindrical mold 2;
one end of the L-shaped clamp 62 is hinged to the round surface of the cylindrical die 2, and the right-angle edge where the one end of the L-shaped clamp 62 is located is hinged to the end part of the piston rod of the third driving cylinder 61 through a connecting piece;
a pressure sensor is arranged on the circumferential surface of the cylindrical die 2 corresponding to the position of each clamping and positioning mechanism 6;
the PLC is electrically connected to the third driving cylinder 61 and the pressure sensor.
The method comprises the following steps that when the bamboo battens 7 are pressed against the circumferential surface of the cylindrical die 2, corresponding pressure sensors are triggered, the PLC receives signals transmitted by the pressure sensors, controls the third driving cylinders 61 at corresponding positions to act, and drives the L-shaped clamps 62 to clamp the bamboo battens 7 at the positions to perform auxiliary fixing.
In the structure, through the centre gripping positioner who sets up pressure sensor and particular structure in cylindrical die 2's particular position, when bamboo strip 7 bends to attached in cylindrical die 2's particular position and trigger corresponding pressure sensor, it is fixed to drive L clamp 62 to assist the centre gripping to bamboo strip 7 through PLC control third actuating cylinder 61, thereby avoid bending the resilience of in-process bamboo strip 7, guarantee that bamboo strip 7 bends the circularity of becoming the ring, improve the machining precision.
Referring to fig. 1, the number of the clamping and positioning devices is at least 4, and the clamping and positioning devices are distributed in a circumferential array, and the larger the number of the clamping and positioning devices is, the better the clamping and positioning effects are.
Example 3
The anti-cracking bamboo batten 7 bending and shaping device in embodiment 2 is characterized in that an additional clamping and positioning mechanism 6 is arranged on one side of the cylindrical mold 2 away from the position of the clamping block 4.
Referring to fig. 1, in the above structure, the additional clamping and positioning mechanism 6 is used for clamping and positioning the tail end of the bamboo batten 7, and when the bending of the bamboo batten 7 is completed, the two ends of the bamboo batten 7 can be precisely butted through the additional clamping and positioning mechanism 6, so that the bending roundness of the bamboo batten 7 is further ensured, and the processing precision is improved.
Example 4
The anti-cracking bamboo batten 7 bending and shaping device in embodiment 1, wherein a heating device is arranged inside the cylindrical die 2, and the heating device is used for heating the circumferential surface of the cylindrical die 2.
In the method, the steps are as follows: the method also comprises the step of heating the circumferential surface of the cylindrical mould 2 by a heating device before the middle part of the cut bamboo strips 7 is positioned at one side of the cylindrical mould 2 close to the clamping block 4.
As an embodiment, the heating device may be an electric heating wire wound around the inner circumference of the cylindrical mold 2, and the electric heating wire heats the circumference of the cylindrical mold 2, and further heats the bamboo strips 7 when the bamboo strips 7 are bent, thereby accelerating plastic deformation of the bamboo strips 7 and further preventing cracking of the bamboo strips 7.
Example 5
The anti-cracking bamboo batten 7 bending and shaping device in embodiment 1, wherein the pressing roller 54 is provided with a heating device. As an embodiment, the inside of the pressing roller 54 may be a hollow structure, that is, a cavity is arranged in the pressing roller 54, and is coaxially connected with a rotary joint, the rotary joint is connected with a liquid inlet pipe, and heated liquid is injected into the cavity in the pressing roller 54 through the liquid inlet pipe to heat the pressing roller 54, so that the pressing roller 54 heats the bamboo strips 7 when the bamboo strips 7 are rolled, the plastic deformation of the bamboo strips 7 is accelerated, and the cracking of the bamboo strips 7 is further avoided.
Example 6
The anti-cracking bamboo batten 7 bending and shaping device in embodiment 1, wherein one surface of the clamping block 4 close to the cylindrical die 2 is an arc surface, and an axis of the arc surface coincides with an axis of the cylindrical die 2.
When the structure enables the bamboo battens 7 to be initially positioned and fixed, the arc-shaped matching cylindrical die 2 of the clamping block 4 can more tightly clamp the middle parts of the bamboo battens 7 to be processed, so that the processing precision of bending the bamboo battens 7 is ensured. In conclusion, the bamboo splints are gradually pressed and formed in a mode that the middle of the bamboo splints are clamped through the matching of the clamping blocks and the cylindrical die, the lead screw guide rail mechanisms and the driving cylinders on the two sides drive the pressing rollers to slowly fit the circumferential surface of the cylindrical die from the positioning area of the middle of the bamboo splints to the two ends, although the efficiency is reduced compared with the prior art, the efficiency is still obviously improved compared with a purely manual manufacturing process, because the bamboo splints are gradually and slowly pressed and formed by single points, the sufficient plastic deformation reaction time is obtained when the bamboo splints are bent, and the cracking of the bamboo splints caused by the fact that all parts of the bamboo splints are simultaneously stressed and extruded is avoided. When the bamboo strips are bent, the bamboo strips are heated, the plastic deformation of the bamboo strips is accelerated, and the bamboo strips are further prevented from cracking. Through the centre gripping positioner who sets up pressure sensor and specific structure in cylindrical die's particular position, when the bamboo strip bending to attached in cylindrical die's particular position and trigger corresponding pressure sensor, it is fixed to drive L shape anchor clamps to assist the centre gripping to the bamboo strip through PLC control third actuating cylinder to avoid the resilience of bending in-process bamboo strip, guarantee the circularity that the bamboo strip bending becomes the ring, improve the machining precision.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a bamboo strip bending setting device of anti-cracking which characterized in that includes:
a base;
the cylindrical die is fixed on the base;
the first driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, a cylinder body of the first driving cylinder is fixed on the base, a piston rod of the first driving cylinder is perpendicular to the axis of the cylindrical die, and the axis of the first driving cylinder is positioned in the same plane;
the clamping block is connected to the end part of a piston rod of the first driving cylinder;
the subassembly that bends, 2 the subassembly symmetry that bends sets up the both sides at cylindrical die and first actuating cylinder, the subassembly that bends includes:
the screw rod guide rail mechanism comprises a screw rod body, a guide rail body parallel to the screw rod body and a driving motor, and the driving motor is in transmission connection with the screw rod body and is used for driving the screw rod to rotate;
the sliding block is connected with the lead screw guide rail mechanism in a sliding manner;
the second driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, the cylinder body of the second driving cylinder is connected to the sliding block, and the piston rod of the second driving cylinder faces the circumferential surface of the cylindrical mold;
the compression roller is rotatably connected to the end part of the piston rod of the second driving cylinder;
the PLC is electrically connected with the first driving cylinder, the second driving cylinder and the driving motor respectively;
further comprising: centre gripping positioning mechanism, it is a plurality of centre gripping positioning machine constitutes circumference array distribution and sets up on cylindrical mould's disc, centre gripping positioning mechanism includes:
the third driving cylinder is an air cylinder, a hydraulic cylinder or an electric cylinder, and the cylinder body of the third driving cylinder is hinged to the circular surface of the cylindrical die;
one end of the L-shaped clamp is hinged to the round surface of the cylindrical die, and a right-angle edge where the one end of the L-shaped clamp is located is hinged to the end portion of a piston rod of the third driving cylinder through a connecting piece;
the circumferential surface of the cylindrical die is provided with a pressure sensor corresponding to the position of each clamping and positioning mechanism;
and the PLC is electrically connected with the third driving cylinder and the pressure sensor.
2. The anti-cracking bamboo batten bending and shaping device according to claim 1, wherein one side, away from the position of the clamping block, of the cylindrical die is provided with an additional clamping and positioning mechanism.
3. The anti-cracking bamboo batten bending and shaping device according to claim 1, wherein a heating device is arranged inside the cylindrical die and used for heating the circumferential surface of the cylindrical die.
4. The bamboo cane bending and shaping device capable of preventing cracking as claimed in claim 1, wherein the compression roller is provided with a heating device.
5. The anti-cracking bamboo cane bending and shaping device as claimed in claim 1, wherein one surface of the clamping block, which is close to the cylindrical die, is an arc surface, and an axis of the arc surface is coincident with an axis of the cylindrical die.
6. The method for bending bamboo strips by using the cracking-proof bamboo strip bending and shaping device of any one of claims 1 to 5, which is characterized by comprising the following steps:
cutting the bamboo strips to be bent into strips with the length consistent with the perimeter of the cylindrical mold;
the middle part of the cut bamboo batten is positioned at one side of the cylindrical die, which is close to the clamping block, and the PLC controls a piston rod of the first driving cylinder to move so that the clamping block moves towards the cylindrical die and the middle part of the bamboo batten is clamped and positioned on the cylindrical die;
the PLC controls the driving motor to drive the screw rod body to rotate, the sliding block moves from one end, close to the first driving cylinder, of the screw rod body to one end, far away from the first driving cylinder, meanwhile, the PLC controls the piston rod of the second driving cylinder to move in a telescopic mode, the compression roller is pressed against the surface of the bamboo strip to roll along the circumferential surface of the cylindrical mold until the bamboo strip is completely attached to the circumferential surface of the cylindrical mold, and the bamboo strip is pressed and bent into a circular ring shape.
7. The method for bending the bamboo strips through the anti-cracking bamboo strip bending and shaping device as claimed in claim 6, wherein the method further comprises the step of triggering the corresponding pressure sensor when the bamboo strips are pressed against the circumferential surface of the cylindrical mold, and the PLC receives signals transmitted by the pressure sensor, controls the third driving cylinder at the corresponding position to act, and drives the L-shaped clamp to clamp the bamboo strips at the corresponding position for auxiliary fixing.
8. The bamboo cane bending and shaping device of claim 6, wherein the steps of: the method also comprises the step of heating the circumferential surface of the cylindrical mould by a heating device before the middle part of the cut bamboo strips is positioned at one side of the cylindrical mould close to the clamping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050389.5A CN114311193B (en) | 2022-01-17 | 2022-01-17 | Anti-cracking bamboo batten bending and shaping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210050389.5A CN114311193B (en) | 2022-01-17 | 2022-01-17 | Anti-cracking bamboo batten bending and shaping device and method |
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| Publication Number | Publication Date |
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| CN114311193A CN114311193A (en) | 2022-04-12 |
| CN114311193B true CN114311193B (en) | 2022-10-04 |
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| CN202210050389.5A Active CN114311193B (en) | 2022-01-17 | 2022-01-17 | Anti-cracking bamboo batten bending and shaping device and method |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459229B (en) * | 2015-12-02 | 2019-06-28 | 浙江三箭工贸有限公司 | Bamboo cane brake forming equipment |
| CN206106035U (en) * | 2016-10-28 | 2017-04-19 | 福建省尤溪大唐家居发展有限公司 | High -efficient bamboo timber design mould that bends |
| CN107363960B (en) * | 2017-07-22 | 2019-08-20 | 福建双羿竹木发展有限公司 | A kind of device and method using bamboo cane disposal molding bamboo frame |
| CN208977994U (en) * | 2018-07-25 | 2019-06-14 | 魏寿成 | Bamboo cane cuff-like forms positioning device |
| CN210551921U (en) * | 2019-05-20 | 2020-05-19 | 安徽金源家居工艺品有限公司 | Rattan bender is used in rattan goods processing |
| CN211164429U (en) * | 2019-06-11 | 2020-08-04 | 惠安信德机械有限公司 | Bamboo wood delimbing device |
| CN113146776B (en) * | 2021-04-12 | 2022-07-08 | 福建江夏学院 | Bamboo strip bending equipment |
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