Plate pressing machine for stringed musical instrument

Abstract

The utility model relates to the technical field of musical instrument manufacturing, in particular to a stringed musical instrument plate pressing machine, which not only can drive musical instrument bodies to be fed and discharged, improve the working efficiency and reduce the labor intensity of workers, but also can replace molds according to the shapes and sizes of different musical instrument bodies and improve the use flexibility of the device. Comprising a control mechanism; the device further comprises a conveying mechanism, a driving mechanism, a pushing and lifting mechanism and a pressing mechanism, the conveying mechanism is installed on the control mechanism and drives the piano body to be fed and discharged, the driving mechanism is installed on the conveying mechanism and drives the conveying mechanism to rotate, and the pushing and lifting mechanism is installed on the control mechanism and pushes and lifts the piano body upwards. The pressing mechanism is installed on the control mechanism and cooperates with the pushing and lifting mechanism to press the guitar body.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instrument manufacturing, in particular to a stringed instrument pressing machine. Background Art

[0002] A string instrument is a musical instrument that uses mechanical force to vibrate tensioned strings to produce sound. Based on the excitation method, string instruments can be divided into three categories: rubbing instruments, stringed instruments, struck stringed instruments, and plucked stringed instruments.

[0003] The existing string instrument pressing machine, such as the cold pressing machine for musical instrument production disclosed in the utility model patent with application number 202122337779.4, has a main structure including a frame and several cold pressing units arranged on the frame, a working platform is provided on the frame, and a cross beam is provided above the working platform, each cold pressing unit includes a telescopic cylinder, a pressing plate and several pressing heads formed on the pressing plate, the cylinder body of the telescopic cylinder is installed on the cross beam, the pressing plate is fixedly connected to the lower end of the piston rod of the telescopic cylinder, and a mold frame is provided on the working platform; when in use, the piano body to be processed is placed in the mold frame. Since multiple cold pressing units are provided on the frame, the operator places the piano body into the mold frame and then places the combination of the piano body and the mold frame directly under the pressing plate. The telescopic cylinder is started to drive the pressing plate to descend, and the pressure head on the pressing plate is loaded against the upper surface edge of the piano body. The mold frame serves to surround the piano body from the circumferential direction to prevent the piano body from bursting due to pressure.

[0004] However, most existing pressing machines require manual loading and unloading, resulting in low work efficiency. Moreover, most existing pressing machines can only perform cold pressing on the same type of musical instrument, and their scope of application is limited. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a string instrument pressing machine which can not only drive the loading and unloading of the instrument body, improve work efficiency and reduce the labor intensity of workers, but also can replace the mold according to the shape and size of different instrument bodies, thereby improving the flexibility of the device.

[0006] The utility model discloses a string instrument pressing machine, comprising a control mechanism, a transmission mechanism, a driving mechanism, a pushing mechanism and a pressing mechanism. The transmission mechanism is installed on the control mechanism and drives the instrument body to be loaded and unloaded, the driving mechanism is installed on the transmission mechanism and drives the transmission mechanism to rotate, the pushing mechanism is installed on the control mechanism and pushes the instrument body upward, and the pressing mechanism is installed on the control mechanism and cooperates with the pushing mechanism to press the instrument body. The instrument body is placed on the transmission mechanism, the driving mechanism is started to drive the transmission mechanism to rotate, and the transmission mechanism drives the instrument body to be transported forward. When the instrument body moves to a specified position, the control mechanism turns off the driving mechanism, the transmission mechanism stops transporting forward, the pushing mechanism pushes the instrument body upward, and the pressing mechanism presses downward. The pushing mechanism and the pressing mechanism cooperate to shape the instrument body. The pressing mechanism can be replaced according to different shapes and sizes of the instrument body, thereby improving the flexibility of the device.

[0007] Preferably, the control mechanism includes a workbench, a base plate, a frame, a display screen and a sensor, the bottom end of the workbench is connected to the ground, the base plate is installed on the workbench, the bottom end of the frame is connected to the top end of the workbench, the display screen is installed on the frame, and the sensor is installed on the frame; when the conveying mechanism drives the piano body to move to the specified position and is detected by the sensor, the sensor controls the driving mechanism to close, stops the conveying mechanism from conveying the piano body forward, and the staff controls the pressure and temperature of the pressing mechanism through the display screen to ensure the pressing effect.

[0008] Preferably, the transmission mechanism includes two groups of transmission mechanisms, four groups of turntables, two groups of conveyor belts, a lower mold, two groups of first pulleys and a first belt. The two groups of rotating shafts are rotatably mounted on the workbench, and two groups of turntables are installed on each group of rotating shafts. The conveyor belts are tensioned on two groups of turntables located on different groups of rotating shafts, and the lower mold is placed on the two groups of conveyor belts. The two groups of first pulleys are respectively installed on the two groups of rotating shafts, and the first belt is tensioned between the two groups of first pulleys; the staff places the piano body in the lower mold and transfers the lower mold to the two groups of conveyor belts, and the driving mechanism drives the rotating shaft connected thereto to rotate, and the rotating shaft drives the first pulley to rotate, and the first pulley drives another group of first pulleys and the rotating shaft to rotate through the first belt, and the rotating shaft drives the two groups of turntables connected thereto to rotate, and the turntable drives the conveyor belt to rotate, and the two groups of conveyor belts drive the lower mold forward, and the work efficiency is improved by setting multiple groups of lower molds.

[0009] Preferably, the driving mechanism includes a motor, a reducer, a transmission shaft, a second pulley, a third pulley and a second belt, the bottom end of the motor is connected to the top of the base plate, the bottom end of the reducer is connected to the top of the base plate, the transmission shaft is installed on the reducer, the second pulley is installed on the transmission shaft, the third pulley is installed on one of the sets of rotating shafts, and the second belt is tensioned and installed between the second pulley and the third pulley; the staff starts the motor through the display screen, the motor drives the transmission shaft to rotate through the reducer, the transmission shaft drives the second pulley to rotate, the second pulley drives the third pulley to rotate through the second belt, and the third pulley drives the rotating shaft connected to it to rotate, and when the sensor detects the lower mold, the sensor turns off the motor through an electrical signal.

[0010] Preferably, the pushing mechanism includes six groups of first hydraulic cylinders, three groups of support plates, three groups of side baffles and a connecting frame. The bottom ends of the six groups of first hydraulic cylinders are connected to the top of the bottom plate, the bottom ends of the three groups of support plates are connected to the top of the six groups of first hydraulic cylinders, the bottom ends of the three groups of side baffles are respectively connected to the tops of the three groups of support plates, and the connecting frame is connected and installed on the bottom ends of the three groups of support plates; the six groups of first hydraulic cylinders are started, the six groups of first hydraulic cylinders push the three groups of support plates upward, and the three groups of support plates push the lower mold upward to make the lower mold separate from the two groups of conveyor belts. The lower mold is limited by setting three groups of side baffles to ensure the accuracy of subsequent pressing. The connection stability of the three groups of support plates is improved by setting a connecting frame to avoid shaking.

[0011] Preferably, all three groups of support plates are provided with rubber pads, and the surface of the rubber pads is engraved with anti-slip grooves; by laying the rubber pads, not only can the fixing effect of the lower mold be enhanced and the accuracy of the subsequent pressing of the pressing mechanism be ensured, but also the downward impact force of the pressing mechanism can be reduced, thereby avoiding hard collision between the pressing mechanism and the lower mold and extending the service life of the device.

[0012] Preferably, the pressing mechanism includes two groups of second hydraulic cylinders, an installation box, a slide rail, a handle, an upper template and a fixing bolt. The top ends of the two groups of second hydraulic cylinders are connected to the top end of the frame, and the top end of the installation box is connected to the bottom ends of the two groups of second hydraulic cylinders. The installation box is provided with an installation slot and a mounting hole, the slide rail is slidably installed in the installation slot of the installation box, the handle is installed on the slide rail, the top end of the upper template is connected to the bottom end of the slide rail, and the fixing bolt is installed in the mounting hole of the installation box; the staff pulls out the fixing bolt, and then selects an upper template of a suitable shape, inserts the slide rail into the installation slot of the installation box, and facilitates the removal of the slide rail and the upper template by setting the handle. The slide rail is inserted into the installation slot of the installation box, and the fixing bolt is inserted into the mounting hole of the installation box to fix the slide rail to prevent the slide rail from falling off. Then the two groups of second hydraulic cylinders push the installation box and the upper template downward, and the upper template and the lower mold cooperate to press and form the piano body.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the piano body is placed on the conveying mechanism, the driving mechanism is started to drive the conveying mechanism to rotate, and the conveying mechanism drives the piano body forward. When the piano body moves to the specified position, the control mechanism turns off the driving mechanism, the conveying mechanism stops conveying forward, the pushing mechanism pushes the piano body upward, and the pressing mechanism presses downward. The pushing mechanism and the pressing mechanism cooperate to shape the piano body. The pressing mechanism can be replaced according to different shapes and sizes of the piano body, thereby improving the flexibility of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an axonometric structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional axonometric structure of the control mechanism and the pushing mechanism of the utility model;

[0016] Figure 3 This is an axonometric structural diagram of the transmission mechanism of the utility model;

[0017] Figure 4 This is a partially enlarged axonometric structural diagram of the drive mechanism of the utility model;

[0018] Figure 5 It is a partially enlarged sectional axonometric structural diagram of the pressing mechanism of the utility model.

[0019] Markings in the accompanying drawings: 01, control mechanism; 11, workbench; 12, base plate; 13, frame; 14, display screen; 15, sensor; 02, transmission mechanism; 21, rotating shaft; 22, turntable; 23, conveyor belt; 24, lower mold; 25, first pulley; 26, first belt; 03, driving mechanism; 31, motor; 32, reducer; 33, transmission shaft; 34, second pulley; 35, third pulley; 36, second belt; 04, pushing mechanism; 41, first hydraulic cylinder; 42, support plate; 43, side baffle; 44, connecting frame; 05, pressing mechanism; 51, second hydraulic cylinder; 52, installation box; 53, slide rail; 54, handle; 55, upper template; 56, fixing bolt. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] Example 1

[0022] The utility model is a string instrument pressing machine, comprising a control mechanism 01; a transmission mechanism 02, a driving mechanism 03, a pushing mechanism 04 and a pressing mechanism 05, wherein the transmission mechanism 02 is mounted on the control mechanism 01 and drives the piano body to be loaded and unloaded, the driving mechanism 03 is mounted on the transmission mechanism 02 and drives the transmission mechanism 02 to rotate, the pushing mechanism 04 is mounted on the control mechanism 01 and pushes the piano body upward, and the pressing mechanism 05 is mounted on the control mechanism 01 and cooperates with the pushing mechanism 04 to press the piano body; the control mechanism 01 comprises a workbench 11, a bottom plate 12, a frame 13, The display screen 14 and the sensor 15 are connected to the ground at the bottom of the workbench 11, the bottom plate 12 is installed on the workbench 11, the bottom end of the frame 13 is connected to the top of the workbench 11, the display screen 14 is installed on the frame 13, and the sensor 15 is installed on the frame 13; the transmission mechanism 02 includes two groups of transmission mechanisms 02, four groups of turntables 22, two groups of conveyor belts 23, a lower mold 24, two groups of first pulleys 25 and a first belt 26, two groups of rotating shafts 21 are rotatably installed on the workbench 11, and each group of rotating shafts 21 is installed with two groups of turntables 22, and the conveyor belt 23 is tensioned and installed at On the two sets of turntables 22 on different sets of rotating shafts 21, the lower mold 24 is placed on two sets of conveyor belts 23, the two sets of first pulleys 25 are respectively installed on the two sets of rotating shafts 21, and the first belt 26 is tensioned and installed between the two sets of first pulleys 25; the driving mechanism 03 includes a motor 31, a reducer 32, a transmission shaft 33, a second pulley 34, a third pulley 35 and a second belt 36, the bottom end of the motor 31 is connected to the top of the base plate 12, the bottom end of the reducer 32 is connected to the top of the base plate 12, the transmission shaft 33 is installed on the reducer 32, and the second pulley 34 is installed It is mounted on the transmission shaft 33, the third pulley 35 is mounted on one of the rotating shafts 21, and the second belt 36 is tensioned and installed between the second pulley 34 and the third pulley 35; the pushing mechanism 04 includes six groups of first hydraulic cylinders 41, three groups of supporting plates 42, three groups of side baffles 43 and a connecting frame 44, the bottom ends of the six groups of first hydraulic cylinders 41 are connected to the top of the bottom plate 12, the bottom ends of the three groups of supporting plates 42 are connected to the top of the six groups of first hydraulic cylinders 41, the bottom ends of the three groups of side baffles 43 are respectively connected to the tops of the three groups of supporting plates 42, and the connecting frame 44 is connected to the bottom ends of the three groups of supporting plates 42;During operation, first, the staff places the piano body in the lower mold 24, transfers the lower mold 24 to the two sets of conveyor belts 23, and starts the motor 31 through the display screen 14. The motor 31 drives the transmission shaft 33 to rotate through the reducer 32, and the transmission shaft 33 drives the second pulley 34 to rotate. The second pulley 34 drives the third pulley 35 to rotate through the second belt 36. The third pulley 35 drives the rotating shaft 21 connected thereto to rotate. The rotating shaft 21 drives the first pulley 25 to rotate. The first pulley 25 drives another set of first pulleys 25 and the rotating shaft 21 to rotate through the first belt 26. The rotating shaft 21 drives the two sets of turntables 22 connected thereto to rotate, and the turntable 22 drives the conveyor belt 23 rotates, and the two sets of conveyor belts 23 drive the lower mold 24 forward. Multiple sets of lower molds 24 are provided to improve work efficiency. When the sensor 15 detects the lower mold 24, it uses an electrical signal to shut off the motor 31, activating the six sets of first hydraulic cylinders 41. These six sets of first hydraulic cylinders 41 push upward the three sets of support plates 42. The three sets of support plates 42 push the lower mold 24 upward, freeing the lower mold 24 from the two sets of conveyor belts 23. Three sets of side baffles 43 limit the lower mold 24 to ensure the accuracy of subsequent pressing. The provision of a connecting frame 44 improves the connection stability of the three sets of support plates 42 to prevent shaking. The pressing mechanism 05 cooperates with the lower mold 24 to press and form the piano body.

[0023] Example 2

[0024] like Figures 1 to 5As shown, a string instrument pressing machine of the present invention is based on Example 1; it also includes three groups of support plates 42, all of which are covered with rubber pads, and the surface of the rubber pads is engraved with anti-slip grooves; the pressing mechanism 05 includes two groups of second hydraulic cylinders 51, an installation box 52, a slide rail 53, a handle 54, an upper template 55 and a fixing bolt 56, the top of the two groups of second hydraulic cylinders 51 are connected to the top of the frame 13, the top of the installation box 52 is connected to the bottom of the two groups of second hydraulic cylinders 51, the installation box 52 is provided with an installation groove and a mounting hole, the slide rail 53 is slidably installed in the installation groove of the installation box 52, the handle 54 is installed on the slide rail 53, the top of the upper template 55 is connected to the bottom end of the slide rail 53, and the fixing bolt 56 is installed in the installation box 52. During operation, first, the staff places the piano body in the lower mold 24, transfers the lower mold 24 to the two sets of conveyor belts 23, and starts the motor 31 through the display screen 14. The motor 31 drives the transmission shaft 33 to rotate through the reducer 32, and the transmission shaft 33 drives the second pulley 34 to rotate. The second pulley 34 drives the third pulley 35 to rotate through the second belt 36, and the third pulley 35 drives the rotating shaft 21 connected thereto to rotate. The rotating shaft 21 drives the first pulley 25 to rotate. The first pulley 25 drives another set of first pulleys 25 and the rotating shaft 21 to rotate through the first belt 26. The rotating shaft 21 drives the two sets of turntables 22 connected thereto to rotate, and the turntable 22 drives the conveyor belt 23 to rotate. The two groups of conveyor belts 23 drive the lower mold 24 to be conveyed forward. By setting up multiple groups of lower molds 24, the work efficiency is improved. When the sensor 15 detects the lower mold 24, the sensor 15 turns off the motor 31 through an electrical signal and starts the six groups of first hydraulic cylinders 41. The six groups of first hydraulic cylinders 41 push the three groups of supporting plates 42 upward. The three groups of supporting plates 42 push the lower mold 24 upward to make the lower mold 24 separate from the two groups of conveyor belts 23. The lower mold 24 is limited by setting three groups of side baffles 43 to ensure the accuracy of subsequent pressing. The connection stability of the three groups of supporting plates 42 is improved by setting a connecting frame 44 to avoid shaking. By laying a rubber cushion, not only can the fixing effect of the lower mold 24 be enhanced, but also the subsequent pressing mechanism 0 5 can ensure the accuracy of pressing, and can slow down the downward impact force of the pressing mechanism 05, avoid hard collision between the pressing mechanism 05 and the lower mold 24, and extend the service life of the device. The staff will pull out the fixing bolt 56, and then select an upper template 55 of a suitable shape, insert the slide rail 53 into the installation groove of the installation box 52, and provide a handle 54 to facilitate the removal of the slide rail 53 and the upper template 55. The slide rail 53 is inserted into the installation groove of the installation box 52, and the fixing bolt 56 is inserted into the installation hole of the installation box 52 to fix the slide rail 53 to prevent the slide rail 53 from falling off. Then the two groups of second hydraulic cylinders 51 push the installation box 52 and the upper template 55 downward, and the upper template 55 and the lower mold 24 cooperate to press and form the piano body.

[0025] The electric motor 31 and the reducer 32 of the present invention are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manuals, without the need for technicians in this field to make creative efforts.

[0026] 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 technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A string instrument pressing machine, comprising a control mechanism (01); characterized in that: The invention also includes a conveying mechanism (02), a driving mechanism (03), a pushing mechanism (04) and a pressing mechanism (05). The conveying mechanism (02) is installed on the control mechanism (01) and drives the piano body to be loaded and unloaded. The driving mechanism (03) is installed on the conveying mechanism (02) and drives the conveying mechanism (02) to rotate. The pushing mechanism (04) is installed on the control mechanism (01) and pushes the piano body upward. The pressing mechanism (05) is installed on the control mechanism (01) and cooperates with the pushing mechanism (04) to press the piano body.

2. A stringed instrument pressing machine according to claim 1, characterized in that: The control mechanism (01) includes a workbench (11), a base plate (12), a frame (13), a display screen (14) and a sensor (15). The bottom end of the workbench (11) is connected to the ground, the base plate (12) is installed on the workbench (11), the bottom end of the frame (13) is connected to the top end of the workbench (11), the display screen (14) is installed on the frame (13), and the sensor (15) is installed on the frame (13).

3. A stringed instrument pressing machine according to claim 2, characterized in that: The transmission mechanism (02) comprises two groups of transmission mechanisms (02), four groups of turntables (22), two groups of conveyor belts (23), a lower mold (24), two groups of first pulleys (25) and a first belt (26). The two groups of rotating shafts (21) are rotatably mounted on the workbench (11). Two groups of turntables (22) are mounted on each group of rotating shafts (21). The conveyor belts (23) are tensionedly mounted on the two groups of turntables (22) located on different groups of rotating shafts (21). The lower mold (24) is placed on the two groups of conveyor belts (23). The two groups of first pulleys (25) are respectively mounted on the two groups of rotating shafts (21). The first belt (26) is tensionedly mounted between the two groups of first pulleys (25).

4. A stringed instrument pressing machine according to claim 3, characterized in that: The driving mechanism (03) includes a motor (31), a speed reducer (32), a transmission shaft (33), a second pulley (34), a third pulley (35) and a second belt (36). The bottom end of the motor (31) is connected to the top end of the base plate (12), the bottom end of the speed reducer (32) is connected to the top end of the base plate (12), the transmission shaft (33) is installed on the speed reducer (32), the second pulley (34) is installed on the transmission shaft (33), the third pulley (35) is installed on one of the rotating shafts (21), and the second belt (36) is tensioned and installed between the second pulley (34) and the third pulley (35).

5. A stringed instrument pressing machine according to claim 2, characterized in that: The pushing mechanism (04) comprises six groups of first hydraulic cylinders (41), three groups of supporting plates (42), three groups of side baffles (43) and a connecting frame (44). The bottom ends of the six groups of first hydraulic cylinders (41) are connected to the top end of the bottom plate (12), the bottom ends of the three groups of supporting plates (42) are connected to the top ends of the six groups of first hydraulic cylinders (41), the bottom ends of the three groups of side baffles (43) are respectively connected to the top ends of the three groups of supporting plates (42), and the connecting frame (44) is connected and installed on the bottom ends of the three groups of supporting plates (42).

6. A stringed instrument pressing machine according to claim 5, characterized in that: The utility model also comprises three groups of supporting plates (42) each of which is provided with a rubber pad, and the surface of the rubber pad is engraved with anti-skid patterns.

7. A stringed instrument pressing machine according to claim 2, characterized in that: The pressing mechanism (05) comprises two groups of second hydraulic cylinders (51), an installation box (52), a slide rail (53), a handle (54), an upper template (55) and a fixing bolt (56). The top ends of the two groups of second hydraulic cylinders (51) are connected to the top end of the frame (13), the top end of the installation box (52) is connected to the bottom ends of the two groups of second hydraulic cylinders (51), the installation box (52) is provided with an installation groove and an installation hole, the slide rail (53) is slidably installed in the installation groove of the installation box (52), the handle (54) is installed on the slide rail (53), the top end of the upper template (55) is connected to the bottom end of the slide rail (53), and the fixing bolt (56) is installed in the installation hole of the installation box (52).

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