A processing device and method for guzheng panel
By designing a Guzheng panel processing device including the main compartment, bracket, fixed support plate and hydraulic forming mechanism, the problem of difficult and cost of panel production is solved, a faster and consistent processing process is achieved, and the sound quality stability is improved.
Patent Information
- Application Number
- CN202111346256.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-15
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2041-11-15
Smart Images
Figure CN114067766B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a processing device and a processing method for a guzheng panel. Background Art
[0002] With the progress of society and the improvement of people's living standards, more and more ordinary families have guzhengs, which requires higher and higher production of guzhengs. The panel on the guzheng is a major component in the production of guzheng. Its processing difficulty, processing time and production cost account for a large proportion of the production of guzheng. The main reason is that when the panel on the guzheng is produced, a wooden plate is placed on the support frame in the middle of the guzheng and wrapped with metal wire. Every 4 to 6 hours, the metal wire needs to be tightened manually. It takes less than 7 to 8 days for the wooden plate to be processed into the required shape of the guzheng panel. The wooden plate will crack when it is processed into the required shape of the guzheng panel. After the wooden plate is processed into the guzheng panel, loosen the wrapped metal wire, apply adhesive around the bottom of the guzheng panel, and place it around the guzheng frame. Due to the loosening of the wrapped metal wire, the wooden plate will crack. After the silk is wrapped, the shape of the guzheng panel will rebound under the action of internal stress, so it is necessary to continue to wrap the metal wire for 2 to 3 days; after the guzheng panel is completely bonded to the frame around the guzheng, the wrapped metal wire is loosened. Since the guzheng panel is deformed under the action of internal stress after being separated from the wrapped metal wire, it is required to manually process the outer surface of the guzheng panel, which will cause inconsistent thickness of the guzheng panel and affect the sound quality. In summary, in order to solve the problems of difficulty and cost in making guzheng panels and shorten time to improve efficiency, it is urgently necessary to design a processing device for guzheng panels and a method for using the same to solve the above problems. Summary of the invention
[0003] Purpose of the invention: In view of the above-mentioned prior art, a processing device and method for a guzheng panel are proposed to solve the problems of difficulty and cost in making the guzheng panel and to reduce the processing time.
[0004] Technical solution: A processing device for a guzheng panel, comprising a main cabin, wherein a bracket is provided in the main cabin, and a plurality of fixed support plates are provided on the bracket, and a guzheng panel forming mechanism is provided on each fixed support plate; the guzheng panel forming mechanism comprises a lower template, an upper template and a hydraulic device; a countersunk hole is provided in the center of the top of the lower template, and a grid-like through hole is provided at the bottom of the countersunk hole; a boss is provided in the center of the bottom surface of the upper template, and a grid-like through hole is provided on the boss; the lower template is placed in the countersunk hole of the fixed support plate, and the shape of the cavity formed by the upper template and the lower template being covered is the shape of the guzheng panel after forming; the hydraulic device is used to apply downward pressure from above the upper template; locking devices are provided on both sides of the guzheng panel forming mechanism, which are used to lock the covering state of the upper template and the lower template; the main cabin is connected to a steam pipe.
[0005] Furthermore, the bracket includes four support rods, and each fixed support plate is sequentially mounted on the support rods through the circular holes on the four corners, and a fixed connection is formed by screwing bolts into the support rods through the sides of each fixed support plate, and the fixed support plates are evenly spaced apart; the hydraulic cylinder of the hydraulic device corresponding to each guzheng panel forming mechanism is fixed at the center of the bottom surface of the upper fixed support plate.
[0006] Furthermore, in the guzheng panel forming mechanism, sliding rods are provided at the four corners of the lower template, and springs are mounted on the sliding rods. The upper template is slidably connected to the sliding rods through the circular through holes at the four corners, and can hover above the lower template through the support of the springs; handles are provided on both sides of the upper template and the lower template.
[0007] Furthermore, a disc is vertically arranged in the grid-like through holes near the left and right sides of the lower template, and an eccentric hole is arranged on the disc; horizontal circular through holes are respectively arranged on both sides below the bottom of the countersunk hole of the lower template, and a cylindrical pin is arranged in the circular through hole, one end of the cylindrical pin is interference fit with the eccentric hole on the disc, and the other end of the cylindrical pin extends out of the outside of the lower template.
[0008] Furthermore, the locking device includes a crossbeam and a fixing block for fixing the crossbeam; an elbow is provided at the upper end of the crossbeam, and a round hole is provided in the middle of the crossbeam; a notch groove is opened on one side of the fixing block, and a round hole is provided which vertically passes through the notch groove; the fixing block is fixed to the side of the lower template, with the notch groove facing outward, the middle of the crossbeam is placed in the notch groove, the elbow at the upper end of the crossbeam faces inward, and the cylindrical pin is inserted into the round hole 34-4 of the fixing block and the round hole in the middle of the crossbeam to fix the crossbeam and the fixing block together; a spring is connected between the lower end of the crossbeam and the side of the lower template; positioning holes are respectively provided at the upper ends of both sides of the upper template, and when the upper template and the lower template are covered, the elbow at the upper end of the crossbeam can be just embedded in the positioning hole to achieve the positioning and locking of the upper template and the lower template.
[0009] Furthermore, the main cabin is a rectangular box, and the top of the main cabin is provided with a circular through hole for accommodating a pressure reducing valve, a circular through hole for accommodating a first oil pipe, and a circular through hole for accommodating a second oil pipe; the bottom of the right side of the main cabin is provided with a circular through hole for accommodating a steam pipe, and the steam pipe is also connected to a valve outside the main cabin; the bottom of the main cabin is also provided with a circular through hole for accommodating a drain valve; pads are provided on the four corners of the bottom outside the main cabin; the left side of the main cabin is connected to the sealed door by a hinge, and the inner side of the sealed door is provided with sealing rings and the outer side is provided with handles.
[0010] The guzheng panel processing method according to the device comprises:
[0011] Step 1: Place the forming mechanism into the countersunk hole of the fixed support plate, and place the rectangular wooden board into the countersunk hole at the center of the top of the lower template;
[0012] Step 2: Control the hydraulic device to drive the upper template to move downward, and stop after the boss in the middle of the bottom of the upper template contacts the rectangular wooden board, and then continue to fill the sealed main cabin with steam, and after 7 to 9 hours, the rectangular wooden board softens under the action of steam;
[0013] Step 3: Control the hydraulic device to drive the upper template to move down slowly. After 24 hours, the boss in the middle of the bottom of the upper template is combined with the rectangular wooden board and the bottom surface of the countersunk hole of the lower template. The locking device locks the upper template and the lower template; close the steam valve, and discharge the steam and water in the main cabin;
[0014] Step 4: Open the sealed door of the main cabin, control the piston rod of the hydraulic device to retract, take out the molding mechanism as a whole from the countersunk hole of the fixed support plate, and place it in a drying room at 0 degrees Celsius for 72 hours;
[0015] Step 5: Open the locking device, remove the upper template, separate the guzheng panel from the lower template, and obtain the formed guzheng panel.
[0016] Beneficial effects: The processing device and method of the guzheng panel of the present invention solve the problems of difficulty and cost in manufacturing the guzheng panel and reduce the processing time. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the main structure of a processing device for a guzheng panel;
[0018] Figure 2 It is a main cross-sectional view of a processing device for a guzheng panel;
[0019] Figure 3 yes Figure 2 Top view of the section along the middle edge at AA;
[0020] Figure 4 yes Figure 2 Bottom view of the section along AA;
[0021] Figure 5 yes Figure 2 Sectional view along the middle line BB;
[0022] Figure 6 yes Figure 3 Cross-sectional view at the middle edge CC;
[0023] Figure 7 It is a top view of the guzheng panel forming mechanism of the present invention;
[0024] Figure 8 yes Figure 7 Sectional view at the middle edge DD;
[0025] Fig. 9 yes Figure 8 Sectional view along the middle edge at EE;
[0026] Fig.10 It is a main cross-sectional view of the locking device of the molding mechanism in the present invention;
[0027] Fig.11 yes Fig.10 Cross-sectional view along the middle edge FF. DETAILED DESCRIPTION
[0028] The present invention will be further explained below in conjunction with the accompanying drawings.
[0029] like Figures 1 to 9 As shown, a processing device for a guzheng panel is composed of a sealing door 1, a hinge 3, a main compartment 5, a pressure reducing valve 6, a first oil pipeline 7, a second oil pipeline 8, a hydraulic cylinder 9, a support rod 12, a fixed support plate 13, a steam pipe 16, a valve 17, a drain valve 19, and a molding mechanism 27.
[0030] Specifically, the main cabin 5 is a rectangular box, and the top of the main cabin 5 is provided with a round hole 20 for placing the pressure reducing valve 6, a round hole 21 for placing the first oil pipeline 7, and a round hole 22 for placing the second oil pipeline 7; the right bottom of the main cabin 5 is provided with a round hole 24 for placing the steam pipe 16, and the steam pipe 16 is also connected to a valve 17 outside the main cabin 5; the bottom of the main cabin 5 is also provided with a round hole 23 for placing the drain valve 19; and pads 18 are provided at the four corners of the bottom of the outer side of the main cabin 5. The left side of the main cabin 5 is connected to one end of the hinge 3, and the other end of the hinge 3 is connected to the sealed door 1. The inner side of the sealed door 1 is provided with a sealing ring 2, and the outer side is provided with a handle 25.
[0031] A bracket consisting of at least two layers of fixed support plates 13 and four support rods 12 is provided in the main cabin 5. Four round through holes 26 are provided at the four corners of the fixed support plate 13 for passing the support rods 12, and threaded holes 14 corresponding to the round through holes 26 are provided on the side of the fixed support plate 13. Bolts in the threaded holes 14 are used to fix the connection between the support rods 12 and the fixed support plate 13. A hydraulic cylinder 9 is provided at the center of the bottom surface of each fixed support plate 13. The hydraulic cylinder 9 is provided with a first oil pipeline 7, a second oil pipeline 8 and a piston rod 10. The purpose of controlling the up and down movement of the piston rod 10 is achieved by controlling the oil in and out of the first oil pipeline 7 and the second oil pipeline 8.
[0032] A rectangular countersunk hole 15 is arranged in the center of the top surface of the fixed support plate 13, and a guzheng panel forming mechanism 27 is arranged in the rectangular countersunk hole 15. The forming mechanism 27 is composed of a lower template 37, an upper template 38, a slide bar 32, and a spring 44.
[0033] A countersunk hole 28 is provided at the center of the top of the lower template 37. The four sides of the countersunk hole 28 are rectangular and the bottom surface is an arc surface. A grid-like through hole 29 is provided at the bottom of the countersunk hole 28. A disk 30 is vertically arranged in the grid-like through holes 29 on both sides of the countersunk hole 28. The disk 30 is provided with an eccentric hole 30-1. Step holes 31 are provided at the four corners of the lower template 37 to pass through the slide rod 32. Handles 33 are also provided on both sides of the lower template 48.
[0034] A boss 39 is provided in the center of the bottom surface of the upper template 38. The four sides of the boss 39 are rectangular and the top surface is an arc surface. The boss 39 is consistent with the shape of the countersunk hole 28. The boss 39 is about 0.5mm smaller than the countersunk hole 28 in length and width, and has the same height as the depth of the countersunk hole 28. A grid-like through hole 40 is provided on the boss 39. Round through holes 41 are provided on the four corners of the upper template 38 to pass through the slide bar 32, and handles 42 are also provided on both sides of the upper template 38.
[0035] A round through hole 43 is provided at the bottom of the step hole 31 of the lower template 37, a spring 44 is also provided in the step hole 31, and the slide bar 32 passes through the round through hole 43 and the spring 44 and is interference fit with the round through hole 43. The slide bar 32 passes through the round through hole 41 of the upper template 38, so that the upper template 38 is suspended above the lower template 37 under the action of the spring 44.
[0036] Horizontal round through holes 45 are provided on both sides 4 mm below the bottom of the countersunk hole 28 of the lower template 37 . A cylindrical pin 46 is provided in the round through hole 45 . The cylindrical pin 46 is interference fit with the eccentric hole 30 - 1 on the disc 30 .
[0037] Positioning holes 47 are respectively provided at the upper ends of both sides of the upper mold plate 38, and locking devices 34 are provided on both sides of the molding mechanism 27. The locking devices 34 include a crossbeam 34-1 and a fixing block 34-3 for fixing the crossbeam 34-1. Fig.10 , Fig.11 As shown, an elbow 34-2 is provided at the upper end of the beam 34-1, and a round through hole 34-8 is provided in the middle of the beam 34-1. A notch groove 34-7 is provided on one side of the fixing block 34-3, and a round through hole 34-4 is provided which vertically passes through the notch groove 34-7. A fixing block 34-3 is fixed on each of the two sides of the lower template 37, with the notch groove 34-7 facing outwards, the middle of the beam 34-1 is placed into the notch groove 34-7, the elbow 34-2 at the upper end of the beam 34-1 faces inwards, the cylindrical pin 34-5 is inserted into the round through hole 34-4 and the round through hole 34-8, the beam 34-1 is fixed together with the fixing block 34-3, and an upper spring 34-6 is fixed between the lower end of the beam 34-1 and the lower template 37, forming a locking device 34. When the upper template 38 and the lower template 37 are covered, the elbow 34 - 2 at the upper end of the beam 34 - 1 can be just embedded in the positioning hole 47 to achieve the positioning and locking of the upper template 38 and the lower template 37 .
[0038] A guzheng panel processing method based on the above device is as follows: first, a forming mechanism 27 is placed in a rectangular countersunk hole 15; a rectangular wooden board is placed in the countersunk hole 28, and the length and width of the wooden board are about 0.5 mm smaller than the countersunk hole 28; then the second oil pipeline 8 is controlled to quickly feed oil, and the first oil pipeline 7 is controlled to quickly discharge oil, so that the piston rod 10 moves down quickly, and the lower end of the piston rod 10 contacts the top of the upper template 38, driving the upper template 38 to move down quickly, and the boss 39 in the middle of the bottom of the upper template 38 contacts the rectangular wooden board and stops feeding oil; grab the handle 25, move the sealing door 1 to cover the hatch 35 with rectangular bosses 36 on the left and right sides, and use F-type The clamp is clamped on the rectangular boss 36 and the left and right sides of the sealing door 1, so that the movable sealing door 1 is connected to the main cabin 5 as a whole; the valve 17 is opened to let steam into the main cabin 5, and when the steam in the main cabin 5 is too large, the pressure is reduced through the pressure reducing valve 6. After 7 to 9 hours, the wood softens under the action of steam. When the moisture content of the wood fiber saturation point is 20% to 30%, the wood strength is the smallest and the deformation that can be produced is the largest; at this time, the second oil pipeline 8 is controlled to slowly feed oil, and the first oil pipeline 7 is controlled to slowly discharge oil, so that the piston rod 10 slowly moves down, and the lower end of the piston rod 10 contacts the top of the upper template 38, driving the upper template 38 to slowly move down; the upper template 38 After a day of slow downward movement, the boss 39 in the middle of the bottom of the upper template 38 is combined with the rectangular wooden board and the bottom surface of the countersunk hole 28 of the lower template 37; after the elbow 34-2 at the upper end of the crossbeam 34-1 enters the positioning hole 47, the upper template 38 and the lower template 37 are fixed together; the second oil pipeline 8 is controlled to stop the oil supply, and the first oil pipeline 7 and the second oil pipeline 8 are controlled to quickly supply oil, so that the piston rod 10 moves up quickly, and the lower end of the piston rod 10 quickly leaves the top of the upper template 38; close the valve 17, open the drain valve 19 to discharge the steam and water in the main cabin 5, then loosen the F-type clamp to open the sealing door 1, grab the lower The handles 33 on both sides of the template 37 are used to move the forming mechanism 27 out of the rectangular countersunk hole 15 and place it in a drying room at 0 degrees Celsius for 72 hours to reduce internal stress through natural cooling. At this time, the moisture content of the wood should be lower than 10-12%; by pressing down the lower end of the beam 34-1, the elbow 34-2 at the upper end of the beam 34-1 is separated from the positioning hole 47, and the handles 42 on both sides of the upper template 38 are grasped to remove the upper template 38, and the cylindrical pin 46 is rotated to drive the disc 34 with the eccentric hole 34-1 to rotate, and the pressed guzheng panel is pushed open, and the guzheng panel is taken out after being separated from the countersunk hole 28 of the lower template 37 to obtain the formed guzheng panel.
[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A processing device for a guzheng panel, characterized in that: The invention comprises a main cabin (5), wherein a bracket is provided in the main cabin (5), wherein a plurality of fixed support plates (13) are provided on the bracket, and each fixed support plate (13) is provided with a guzheng panel forming mechanism (27); the guzheng panel forming mechanism (27) comprises a lower template (37), an upper template (38) and a hydraulic device; a countersunk hole (28) is provided at the center of the top of the lower template (37), and a grid-shaped through hole (29) is provided at the bottom of the countersunk hole (28); a boss (39) is provided at the center of the bottom surface of the upper template (38), and the boss (39) A grid-like through hole (40) is provided on the upper surface; the lower template (37) is placed in the countersunk hole (15) of the fixed support plate (13); the cavity shape formed by the upper template (38) and the lower template (37) covering each other is the shape of the Guzheng panel after molding; the hydraulic device is used to apply downward pressure from above the upper template (38); locking devices (34) are provided on both sides of the Guzheng panel molding mechanism (27) for locking the upper template (38) and the lower template (37) in the covering state; the main cabin (5) is connected to the steam pipe (16).
2. The processing device for the guzheng panel according to claim 1, characterized in that: The bracket comprises four support rods (12), each fixed support plate (13) is sequentially sleeved on the support rods (12) through round through holes (26) at four corners, and a fixed connection is formed by screwing bolts into the side of each fixed support plate (13) onto the support rods (12), and each fixed support plate (13) is evenly spaced apart; a hydraulic cylinder (9) of a hydraulic device corresponding to each guzheng panel forming mechanism (27) is fixed at the center of the bottom surface of the upper fixed support plate (13).
3. The processing device for the guzheng panel according to claim 1, characterized in that: In the guzheng panel forming mechanism (27), the lower template (37) is provided with sliding rods (32) at the four corners, and the sliding rods (32) are sleeved with springs (44). The upper template (38) is slidably connected to the sliding rods (32) through the round through holes (41) at the four corners, and can be suspended above the lower template (37) through the support of the springs (44); handles are respectively provided on both sides of the upper template (38) and the lower template (37).
4. The processing device for the guzheng panel according to claim 1, characterized in that: A disk (30) is vertically arranged in each of the grid-shaped through holes (29) near the left and right sides of the lower template (37), and an eccentric hole (30-1) is provided on the disk (30); horizontal round through holes (45) are provided on both sides below the bottom of the countersunk hole (28) of the lower template (37), and a cylindrical pin (46) is provided in the round through hole (45), one end of the cylindrical pin (46) is interference-fitted with the eccentric hole (30-1) on the disk (30), and the other end of the cylindrical pin (46) protrudes outside the lower template (37).
5. The processing device for the guzheng panel according to claim 1, characterized in that: The locking device (34) comprises a crossbeam (34-1) and a fixing block (34-3) for fixing the crossbeam (34-1); an elbow (34-2) is provided at the upper end of the crossbeam (34-1), and a round through hole (34-8) is provided in the middle of the crossbeam (34-1); a notch groove (34-7) is provided on one side of the fixing block (34-3), and a round through hole (34-4) vertically passing through the notch groove (34-7) is provided; the fixing block (34-3) is fixed to the side of the lower template (37), with the notch groove (34-7) facing outwards, the middle of the crossbeam (34-1) is placed in the notch groove (34-7), and the elbow (34-2) at the upper end of the crossbeam (34-1) is provided with a notch groove (34-7) at the middle of the crossbeam (34-1). -2) inwardly, inserting a cylindrical pin (34-5) into the round through hole 34-4 of the fixing block (34-3) and the round through hole (34-8) in the middle of the crossbeam (34-1), thereby fixing the crossbeam (34-1) and the fixing block (34-3) together; connecting a spring (34-6) between the lower end of the crossbeam (34-1) and the side surface of the lower template (37); and providing positioning holes (47) at the upper ends of both sides of the upper template (38), respectively. When the upper template (38) and the lower template (37) are covered, the elbow (34-2) at the upper end of the crossbeam (34-1) can be exactly embedded in the positioning hole (47), thereby realizing the positioning and locking of the upper template (38) and the lower template (37).
6. The processing device for the guzheng panel according to any one of claims 1 to 5, characterized in that: The main cabin (5) is a rectangular box body. The top of the main cabin (5) is provided with a round through hole (20) for accommodating a pressure reducing valve (6), a round through hole (21) for accommodating a first oil delivery pipe (7), and a round through hole (22) for accommodating a second oil delivery pipe (7). The bottom of the right side of the main cabin (5) is provided with a round through hole (24) for accommodating a steam pipe (16). The steam pipe (16) is further connected to a valve (17) outside the main cabin (5). The bottom of the main cabin (5) is further provided with a round through hole (23) for accommodating a drain valve (19). Pads (18) are provided at the four corners of the bottom of the outer side of the main cabin (5). The left side of the main cabin (5) is connected to the sealing door (1) via a hinge (3). The sealing door (1) is provided with sealing rings (2) on the inner sides thereof and a handle (25) on the outer side.
7. The method for processing a guzheng panel according to any one of claims 1 to 6, characterized in that: include: Step 1: Place the forming mechanism (27) into the countersunk hole (15) of the fixed support plate (13), and place the rectangular wooden board into the countersunk hole (28) at the top center of the lower template (37); Step 2: Control the hydraulic device to drive the upper template (38) to move downward, and stop after the boss (39) in the middle of the bottom of the upper template (38) contacts the rectangular wooden board, and then continue to fill the sealed main cabin (5) with steam, and after 7 to 9 hours, the rectangular wooden board softens under the action of the steam; Step 3: Control the hydraulic device to drive the upper template (38) to move slowly downward. After 24 hours, the boss (39) in the middle of the bottom of the upper template (38) is moved together with the rectangular wooden board and the bottom surface of the countersunk hole (28) of the lower template (37). The locking device (34) locks the upper template (38) and the lower template (37); close the steam valve, and discharge the steam and water in the main cabin (5); Step 4: Open the sealed door (1) of the main cabin (5), control the piston rod (10) of the hydraulic device to retract, take out the molding mechanism (27) from the countersunk hole (15) of the fixed support plate (13) as a whole, and place it in a drying room at 0 degrees Celsius for 72 hours; Step 5: Open the locking device (34), remove the upper template (38), separate the guzheng panel from the lower template (37), and obtain the formed guzheng panel.