High-precision bamboo skin thicknessing machine and production process

Abstract

The high-precision bamboo skin thickness determining machine comprises a working table, an abrasive belt grinding machine, a plc controller and a switch, a grinding device is arranged on the working table and comprises a supporting frame, a roller set, a driving assembly, a pressing plate, an adjusting assembly and a supporting plate, the feeding roller set and the discharging roller set are symmetrically arranged, the bamboo skin is kept stable and centered in conveying, and the conveying speed of the bamboo skin is increased; uniform grinding is facilitated; the adjusting assembly is matched with a sliding block through a lead screw, the distance between a pressing plate and a polishing area can be accurately adjusted by rotating a handle, the bamboo splits can be machined to the minimum thickness of 0.15 mm, the precision reaches 0.02 mm, and various thickness requirements are met. The supporting plate effectively prevents the bamboo splits from drooping and deviating, and the spring pressing plate on the supporting plate at the feeding end prevents the bamboo splits from jumping and deviating during feeding; the auxiliary limiting mechanism in the sliding frame prevents displacement of the sliding block due to gravity or mistaken touch of the handle through the auxiliary limiting strip and the adjusting bolt, it is guaranteed that the distance between the pressing plate and the grinding area is stable, the grinding precision and consistency are improved, and the debugging frequency is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of bamboo strip processing, and particularly relates to a high-precision bamboo strip thicknessing machine and a production process. Background Art

[0002] In the traditional bamboo product processing industry, as a basic raw material, the processing of bamboo strips has long relied on manual operations. Workers need to first cut the bamboo, and then rely on simple tools such as knives to split the bamboo piece by piece by hand, and carry out meticulous splitting and trimming operations. This process requires extremely high personal experience and operation skills of workers, and the quality of bamboo strips produced by different workers varies greatly. Due to relying on manpower throughout the process, the labor intensity is extremely high, and workers are extremely prone to fatigue, resulting in extremely low production efficiency. And when manually grinding bamboo strips, it is very difficult to ensure uniform grinding force, and the surface of bamboo strips often shows uneven grinding. Some areas are rough, and some areas are ground too thin, which not only damages the appearance of bamboo strips, but also greatly reduces the strength and toughness of bamboo strips. This makes it easy for bamboo strips to break, deform, etc. when used to make bamboo products such as furniture and handicrafts later, seriously affecting the product quality and the finished product rate. It takes at least five or six years, or even longer, to train an excellent bamboo strip worker who can draw bamboo strips skillfully and with high quality. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides the following technical solution: A high-precision bamboo strip thicknessing machine, comprising an operation table, a sanding machine, a PLC controller, and a switch. The PLC controller is respectively connected to the sanding machine and the switch through wires. A grinding device is arranged on the operation table. The grinding device includes a support frame, a feeding roller group, a discharging roller group, a driving component, a pressing plate, an adjusting component, and a supporting plate. The roller group, the adjusting component, and the supporting plate are all installed on the side wall of the support frame. The feeding roller group and the discharging roller group are symmetrically arranged about the adjusting component on the left and right. The pressing plate is connected to the adjusting component. The supporting plate is located inside the feeding roller group and between the adjusting component and the feeding roller group. The driving component is installed inside the operation table, and the driving component is in transmission connection with the feeding roller group and the discharging roller group. The grinding area of the sanding machine is located below the adjusting component. The PLC controller is connected to the driving component through a wire. The adjusting component is used to adjust the distance between the pressing plate and the grinding area, and the driving component is used to drive the feeding roller group and the discharging roller group to rotate.

[0004] Further, the adjusting component includes a sliding frame, a lead screw, and a slider. The sliding frame is installed on the side wall of the support frame. The slider is slidably connected to the sliding frame through the lead screw. The pressing plate is connected to the slider. The end of the lead screw is connected with a handle.

[0005] Further, an auxiliary limiting mechanism is connected inside the sliding frame. The auxiliary limiting mechanism includes an auxiliary limiting strip and an adjusting bolt. The auxiliary limiting strip is slidably connected inside the sliding frame. The adjusting bolt is connected to the side wall of the sliding frame, and the end of the adjusting bolt abuts against the auxiliary limiting strip.

[0006] Further, the driving assembly includes a gear transmission group, a pulley, and a driving motor. The gear transmission group is connected inside the support frame. The driving motor is installed inside the workbench. The driving gear in the gear transmission group and the end of the driving shaft of the driving motor are both connected with the pulley. The two pulleys are connected by a belt for transmission. The PLC controller is connected to the driving motor through a wire. The driven gear in the gear transmission group is connected to the feeding roller group and the discharging roller group.

[0007] Further, a spring pressing plate is arranged on the support plate adjacent to the feeding roller group.

[0008] Further, the belt sander is a triangular sander.

[0009] Further, the upper rollers of the feeding roller group and the discharging roller group are all rubber rollers, and the lower rollers of the feeding roller group and the discharging roller group are all metal rollers.

[0010] A bamboo strip production process includes the following steps.

[0011] I. Removing bamboo joints and surface green: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.5 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.5 mm.

[0012] II. Removing surface yellow: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.3 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.3 mm.

[0013] III. Semi-finishing grinding: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.2 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.2 mm.

[0014] Finishing grinding: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.15 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.15 mm.

[0015] The beneficial effects of the present invention are as follows: The feeding and discharging roller groups are symmetrically arranged to ensure stable and centered conveying of bamboo strips, enabling uniform grinding. The adjusting component utilizes the cooperation of a lead screw and a slider. By rotating the handle, the operator can accurately control the distance between the pressing plate and the grinding area. The bamboo strips can be finely processed to a minimum thickness of 0.15 mm with an accuracy of 0.02 mm, meeting diverse thickness requirements. The support plate effectively prevents the bamboo strips from sagging and shifting. The spring pressing plate on the feeding end support plate effectively prevents the bamboo strips from jumping and shifting during feeding. The auxiliary limiting mechanism within the sliding frame relies on auxiliary limiting strips and adjusting bolts to prevent the slider from displacing due to gravity or accidental contact with the handle, ensuring a stable distance between the pressing plate and the grinding area, improving grinding accuracy and consistency, and reducing the frequency of equipment debugging. The drive component uses a combination of a pulley and a gear transmission group to operate in coordination, enabling efficient transmission of the motor power, achieving smooth rotation of the roller group, and having a buffering and overload protection function, effectively extending the service life of the equipment. The upper layer of the feeding and discharging roller groups uses rubber wheels and the lower layer uses metal wheels, effectively avoiding the problem of the bamboo strips being damaged and cracked during grinding, greatly improving the yield of the bamboo strip products. With this device, ordinary workers can reach high-precision operation standards after only two days of training. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first perspective three-dimensional view of the present invention;

[0017] Figure 2 is the second perspective three-dimensional view of the present invention;

[0018] Figure 3 is the structural schematic diagram of the support frame in the present invention;

[0019] Figure 4 is the front view of the present invention;

[0020] Figure 5 is the left view of the present invention;

[0021] Figure 6 is the top view of the present invention;

[0022] Figure 7 is the structural schematic diagram of the adjusting component in the present invention.

[0023] The meanings of the reference numerals in the drawings: 1 - operating table; 2 - belt sander; 3 - plc controller; 4 - support frame; 5 - feeding roller group; 6 - discharging roller group; 7 - drive component; 8 - pressing plate; 9 - adjusting component; 10 - support plate; 11 - sliding frame; 12 - lead screw; 13 - slider; 14 - auxiliary limiting strip; 15 - adjusting bolt; 16 - gear transmission group; 17 - pulley; 18 - drive motor; 19 - spring pressing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-7 , the present invention provides the following technical solutions: a high-precision bamboo strip thicknessing machine, including an operation table 1, a sand belt grinding machine 2, a PLC controller 3, and a switch. The PLC controller 3 is respectively connected to the sand belt grinding machine 2 and the switch through wires. A grinding device is arranged on the operation table 1. The grinding device includes a support frame 4, a feeding roller group 5, a discharging roller group 6, a driving component 7, a pressing plate 8, an adjusting component 9, and a support plate 10. The roller group, the adjusting component 9, and the support plate 10 are all installed on the side wall of the support frame 4. The feeding roller group 5 and the discharging roller group 6 are symmetrically arranged about the adjusting component 9. The pressing plate 8 is connected to the adjusting component 9. The support plate 10 is located inside the feeding roller group 5 and between the adjusting component 9 and the feeding roller group 5. The driving component 7 is installed in the operation table 1. The driving component 7 is in transmission connection with the feeding roller group 5 and the discharging roller group 6. The grinding area of the sand belt grinding machine 2 is located below the adjusting component 9. The PLC controller 3 is connected to the driving component 7 through a wire. The adjusting component 9 is used to adjust the distance between the pressing plate 8 and the grinding area. The driving component 7 is used to drive the feeding roller group 5 and the discharging roller group 6 to rotate.

[0026] With the above structure, the roller groups are symmetrically arranged to maintain the stable and centered transportation of the bamboo strips, which is beneficial to uniform grinding; the adjusting component 9 is connected to the pressing plate 8, and the distance can be flexibly adjusted according to the thickness of the bamboo strips, improving the grinding quality; the support plate 10 prevents the bamboo strips from sagging and shifting, ensuring the grinding effect.

[0027] In this embodiment, the adjusting component 9 includes a sliding frame 11, a lead screw 12, and a slider 13. The sliding frame 11 is installed on the side wall of the support frame 4. The slider 13 is slidably connected to the sliding frame 11 through the lead screw 12. The pressing plate 8 is connected to the slider 13. The end of the lead screw 12 is connected with a handle.

[0028] With the above structure, the adjusting component 9 is designed specifically for grinding bamboo strips to meet the required thickness. The operator rotates the handle at the end of the lead screw 12, and the lead screw 12 rotates accordingly, driving the slider 13 slidably connected thereto to move smoothly within the sliding frame 11. Since the pressing plate 8 is connected to the slider 13, this operation precisely adjusts the distance between the pressing plate 8 and the grinding area of the abrasive belt grinding machine 2. During the grinding process, for bamboo strips with different initial thicknesses, the position of the pressing plate 8 can be flexibly adjusted according to the target thickness requirement. When it is necessary to grind thinner bamboo strips, the pressing plate 8 is adjusted towards the grinding area to increase the pressure on the bamboo strips, so that more materials are removed from the bamboo strips during grinding; if thicker bamboo strips need to be ground, the pressing plate 8 is adjusted in the reverse direction to control the grinding amount and ensure that the bamboo strips finally reach the required thickness. This precise distance adjustment function greatly improves the accuracy of the device in grinding the thickness of bamboo strips, ensuring that each bamboo strip can meet the preset thickness standard and meet diverse production requirements.

[0029] In this embodiment, an auxiliary limiting mechanism is connected inside the sliding frame 11. The auxiliary limiting mechanism includes an auxiliary limiting strip 14 and an adjusting bolt 15. The auxiliary limiting strip 14 is slidably connected inside the sliding frame 11, the adjusting bolt 15 is connected to the side wall of the sliding frame 11, and the end of the adjusting bolt 15 abuts against the auxiliary limiting strip 14.

[0030] In the above structure, since the slider 13 is only driven by the lead screw 12, under the influence of gravity, there is a risk of natural sliding; and during daily operation, if the handle is accidentally touched, the rotation of the lead screw 12 will also change the position of the slider 13, resulting in a deviation in the distance between the slider 13 and the grinding area, affecting the grinding effect. The setting of the auxiliary limiting strip 14 inside the sliding frame 11 solves this problem. After the slider 13 is adjusted to the appropriate position, the auxiliary limiting strip 14 can be fixed at the corresponding position by the adjusting bolt 15 so that it just blocks the slider 13 to prevent it from displacing due to gravity or accidental touching of the handle. In this way, it is ensured that during the entire grinding process, the pressing plate 8 and the grinding area always maintain a stable distance, maintaining a constant grinding pressure, greatly improving the grinding accuracy and consistency, ensuring the stability of the grinding quality of bamboo strips, and at the same time reducing the frequency of frequent re-adjusting the equipment due to the position change of the slider 13, improving production efficiency.

[0031] The driving component 7 includes a gear transmission group 16, a pulley 17, and a driving motor 18. The gear transmission group 16 is connected inside the support frame 4, the driving motor 18 is installed inside the workbench 1. The driving gear in the gear transmission group 16 and the end of the driving shaft of the driving motor 18 are both connected with the pulley 17. The two pulleys 17 are connected by a belt for transmission. The PLC controller 3 is connected to the driving motor 18 through a wire. The driven gear in the gear transmission group 16 is connected to the feeding roller group 5 and the discharging roller group 6.

[0032] With the above structure, after the motor is started, the pulley 17 on its drive shaft drives the belt to run, transmitting power to the pulley 17 connected to the drive gear of the gear transmission group 16, and then driving the gear transmission group 16 to efficiently drive the roller group to rotate, realizing the smooth conveyance of bamboo strips. The cooperation between the pulley 17 and the gear transmission group 16 has a buffering and overload protection function, which can avoid instant overload from damaging the motor and the roller group, and extend the service life of the equipment.

[0033] In this embodiment, a spring pressing plate 8 is provided on the support plate 10 adjacent to the feeding roller group 5.

[0034] With the above structure, when the bamboo strips are placed on the roller group for grinding, the spring pressing plate 8 applies a stable and continuous pressure to the bamboo strips by virtue of its own elasticity, firmly pressing the bamboo strips on the support plate 10. This measure can effectively prevent the bamboo strips from jumping or shifting during the initial feeding process, ensuring that the bamboo strips can enter the roller group in a stable and accurate posture, and then be smoothly conveyed to the grinding area. By pressing the bamboo strips during feeding, the bamboo strips are in a good positioning and restraint state at the beginning of the entire grinding process.

[0035] In this embodiment, the belt sander 2 is a triangular sander.

[0036] In this embodiment, the upper rollers of the feeding roller group 5 and the discharging roller group 6 are all rubber rollers, and the lower rollers of the feeding roller group 5 and the discharging roller group 6 are all metal rollers.

[0037] With the above structure, the situation of the bamboo strips being damaged and cracked can be effectively prevented.

[0038] Working principle: When the bamboo strip grinding device is working, the operator operates the switch, and the signal is transmitted to the plc controller, which sends a start command to the belt sander 2 and the drive motor 18. The drive motor 18 starts, and the power is transmitted to the gear transmission group 16 through the pulley 17 and the belt, driving the feeding and discharging roller groups 6 to rotate synchronously. The operator rotates the handle at the end of the lead screw 12 in the adjusting assembly 9, and through the cooperation of the lead screw 12 and the slider 13, the distance between the pressing plate 8 and the grinding area of the belt sander 2 is adjusted. During this period, the position of the auxiliary limit bar 14 in the sliding frame 11 can be adjusted by the adjusting bolt 15. Then, the bamboo strips are passed through the spring pressing plate 8 and placed on the feeding roller group 5. The feeding roller group 5 rotates to drive the bamboo strips to move towards the grinding area by friction, and the support plate 10 supports the bamboo strips. When the bamboo strips move to the grinding area, the pressing plate 8 presses the bamboo strips, and the belt sander 2 grinds the bamboo strips. After the bamboo strips are ground, they are removed from the equipment through the discharging roller group 6. The operator operates the switch again, and the plc controller receives the signal and controls the belt sander 2 and the drive motor 18 to stop running, completing a bamboo strip grinding operation.

[0039] A bamboo strip production process includes the following steps:

[0040] I. Removing bamboo joints and outer green layer: Rotate the handle to adjust the distance between the pressing plate 8 and the grinding area to 0.5 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.5 mm.

[0041] II. Removing outer yellow layer: Rotate the handle to adjust the distance between the pressing plate 8 and the grinding area to 0.3 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.3 mm.

[0042] III. Semi-finish grinding: Rotate the handle to adjust the distance between the pressing plate 8 and the grinding area to 0.2 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.2 mm.

[0043] Finish grinding: Rotate the handle to adjust the distance between the pressing plate 8 and the grinding area to 0.15 mm, and grind the bamboo strip to obtain a bamboo strip with a thickness of 0.15 mm.

[0044] Using the above process: The bamboo strip production process has remarkable effects. By successively performing the steps of removing bamboo joints and outer green layer, removing outer yellow layer, semi-finish grinding, and finish grinding, and precisely controlling the distance between the pressing plate 8 and the grinding area at each stage, gradually grinding from 0.5 mm to 0.15 mm, it can accurately control the thickness of the bamboo strip and meet the strict requirements of various bamboo products. Multiple grinding processes can effectively remove the surface defects of the bamboo strip, make its thickness uniform, greatly improve the quality of the bamboo strip, and reduce the risks of subsequent fracture and deformation. The operation method of rotating the handle to adjust the distance is not only simple and convenient, but also reduces the differences in manual operations, improves production efficiency, and the machine grinding significantly reduces the labor intensity of workers, making the production process more stable and efficient.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision bamboo strip thicknessing machine, comprising an operating table, a sand belt grinding machine, a PLC controller, and a switch. The PLC controller is respectively connected to the sand belt grinding machine and the switch through wires, and is characterized in that: A grinding device is provided on the workbench. The grinding device includes a support frame, a feeding roller group, a discharging roller group, a driving component, a pressing plate, an adjusting component, and a supporting plate. The roller group, the adjusting component, and the supporting plate are all installed on the side wall of the support frame. The feeding roller group and the discharging roller group are symmetrically arranged about the adjusting component on the left and right. The pressing plate is connected to the adjusting component. The supporting plate is located inside the feeding roller group and between the adjusting component and the feeding roller group. The driving component is installed inside the workbench and is in transmission connection with the feeding roller group and the discharging roller group. The grinding area of the belt grinding machine is located below the adjusting component. The PLC controller is connected to the driving component through a wire. The adjusting component is used to adjust the distance between the pressing plate and the grinding area, and the driving component is used to drive the feeding roller group and the discharging roller group to rotate.

2. The high-precision bamboo strip thicknessing machine according to claim 1, wherein: The adjusting component includes a sliding frame, a lead screw, and a slider. The sliding frame is installed on the side wall of the support frame. The slider is slidably connected to the sliding frame through the lead screw. The pressing plate is connected to the slider, and the end of the lead screw is connected with a handle.

3. The high-precision bamboo strip thicknessing machine according to claim 2, characterized in that: An auxiliary limiting mechanism is connected inside the sliding frame. The auxiliary limiting mechanism includes an auxiliary limiting bar and an adjusting bolt. The auxiliary limiting bar is slidably connected inside the sliding frame. The adjusting bolt is connected to the side wall of the sliding frame, and the end of the adjusting bolt abuts against the auxiliary limiting bar.

4. A high-precision bamboo strip thicknessing machine according to claim 1, characterized in that: The driving component includes a gear transmission group, a belt pulley, and a driving motor. The gear transmission group is connected inside the support frame. The driving motor is installed inside the workbench. The driving gear in the gear transmission group and the end of the driving shaft of the driving motor are both connected with the belt pulley. The two belt pulleys are connected by a belt in transmission. The PLC controller is connected to the driving motor through a wire. The driven gear in the gear transmission group is connected to the feeding roller group and the discharging roller group.

5. A high-precision bamboo strip thicknessing machine according to claim 1, characterized in that: A spring pressing plate is provided on the supporting plate adjacent to the feeding roller group.

6. The high-precision bamboo strip thicknessing machine according to claim 1, wherein: The belt grinding machine is a triangular grinding machine.

7. The high-precision bamboo strip thicknessing machine according to claim 1, wherein: The upper rollers of the feeding roller group and the discharging roller group are both rubber rollers, and the lower rollers of the feeding roller group and the discharging roller group are both metal rollers.

8. A bamboo strip production process, characterized in that: It includes the following steps:

1. Removing bamboo knots and surface green: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.5 mm, and grind the bamboo strips to obtain bamboo strips with a thickness of 0.5 mm.

2. Removing surface yellow: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.3 mm, and grind the bamboo strips to obtain bamboo strips with a thickness of 0.3 mm.

3. Semi-finishing grinding: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.2 mm, and grind the bamboo strips to obtain bamboo strips with a thickness of 0.2 mm.

4. Finishing grinding: Rotate the handle to adjust the distance between the pressing plate and the grinding area to 0.15 mm, and grind the bamboo strips to obtain bamboo strips with a thickness of 0.15 mm.

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