A reed cutting device for harmonica processing

Abstract

The invention discloses a reed cutting device for harmonica processing, which relates to the technical field of harmonica processing, and comprises a cutting workbench, a cutting machine and a fixing frame. A reserved groove is provided on the surface of the cutting workbench, the cutting machine is located just above the reserved groove, and the cutting machine is rotatably connected to the top of the fixing frame. The invention avoids the danger caused by the close distance between the hand and the cutting machine when cutting the reed, and the two ends of the copper block move synchronously to avoid the copper block from tilting due to manual movement, thereby reducing the surface processing time of the later reed. The cross section of the brass block is relatively smooth, and the copper block can be processed again by placing the end of the copper block against the fixing groove of the moving block. It is convenient to cut the copper block to make the reed, and the reed will not fall off between the moving block and the synchronous block when the copper block is moved and cut. When the copper block is polished, sufficient clamping force can be provided to ensure that the copper block is firmly fixed under the synchronous block.

Description

Technical Field

[0001] The invention relates to the technical field of harmonica processing, in particular to a reed cutting device used for harmonica processing. Background Art

[0002] The harmonica is a small wind instrument, a multi-reed instrument that produces sound by blowing or inhaling with the mouth to make the metal reeds vibrate. The reed is an important part of the harmonica processing. The blues harmonica is equipped with a pair of reeds in each hole, and the chromatic harmonica is equipped with two pairs of reeds in each hole. The reeds are generally processed from brass into sheets, so that the reeds produce sound when they are affected by airflow.

[0003] Existing harmonica reeds are all made of brass. When processing brass into thin sheet reeds, brass needs to be cut into thin sheets of a certain thickness. However, when cutting the brass block, the brass block needs to be fixed on a workbench. At this time, the staff needs to press their hands on the brass block to push or move it. At this time, the moving speeds of the two ends of the copper block are not synchronized, which will make the cutting machine easy to deflect or loosen when cutting the copper block, thereby making the cutting size of the copper block or the quality of the copper block cross-section relatively poor, and when cutting the copper block, the hand is close to the cutting machine, which is easy to cause danger. Summary of the invention

[0004] The object of the present invention is to provide a reed cutting device for harmonica processing to solve the problems raised in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A reed cutting device for harmonica processing comprises a cutting workbench, a cutting machine and a fixed frame, wherein a reserved groove is provided on the surface of the cutting workbench, the cutting machine is located directly above the reserved groove, and the cutting machine is rotatably connected to the top of the fixed frame; a protective frame is installed on the surface of the cutting workbench and at the reserved groove, a protective component is arranged inside the protective frame, and the protective component comprises a sliding groove 1 and a sliding groove 2, the sliding groove 1 and the sliding groove 2 are respectively arranged on opposite surfaces inside the protective frame, a threaded rod 1 is rotatably connected inside the protective frame and located in the direction of the sliding groove 1, a moving block is connected to the inner thread of the middle of the threaded rod 1 and located in the sliding groove 1, a threaded rod 2 is rotatably connected inside the protective frame and located in the direction of the sliding groove 2, a synchronous block is connected to the inner thread of the middle of the threaded rod 2 and located in the sliding groove 2, a synchronous component is arranged between the threaded rod 1 and the threaded rod 2 for keeping the threaded rod 1 and the threaded rod 2 rotating synchronously, the thread pitch of the threaded rod 1 and the threaded rod 2 is the same, and the threaded rod 1 and the threaded rod 2 rotate synchronously.

[0007] As a preferred technical solution of the present invention, the shape of the protective frame is "U"-shaped, and the moving block, the synchronization component and the synchronization block are located at three edges of the protective frame. The top and bottom of the moving block are both provided with mating strips, and the mating strips are slidably connected to the inside of the first sliding groove. The synchronization block is slidably connected to the inside of the second sliding groove. The reserved groove is located in the exact middle of the protective frame.

[0008] As a preferred technical solution of the present invention, the synchronization component includes a synchronous belt and two synchronous wheels. The two synchronous wheels are respectively arranged on the first threaded rod and the second threaded rod, and the two synchronous wheels are connected by the synchronous belt. A rotating handle is arranged at the end of the first threaded rod and outside the reserved groove.

[0009] As a preferred technical solution of the present invention, the moving block is located on the threaded section of the first threaded rod, the synchronization block is located on the threaded section of the second threaded rod, the moving block corresponds to the synchronization block, and the moving block and the synchronization block move synchronously.

[0010] As a preferred technical solution of the present invention, a surface polishing structure is arranged on the surface of one end of the first threaded rod and the moving block. The surface polishing structure includes a smooth surface. The smooth surface is arranged at both end portions of the first threaded rod, and the inside of the moving block is movably connected to the smooth surface of the first threaded rod. Telescopic springs are sleeved on both smooth surfaces of the first threaded rod, and the telescopic springs are in contact with the moving block. The position of the moving block is错开 from the position of the synchronization block, and the cutter of the cutting machine is located between the moving block and the synchronization block.

[0011] As a preferred technical solution of the present invention, the threaded section of the first threaded rod near the synchronous wheel has the same position as the threaded section of the second threaded rod near the synchronous wheel.

[0012] As a preferred technical solution of the present invention, the surface of the moving block is provided with a first sleeve, a second sleeve and a third sleeve. The first sleeve, the second sleeve and the third sleeve are sleeved with each other inside. Chamfered corners for facilitating the insertion of copper bars are provided on the mating surface between the first sleeve and the second sleeve, the mating surface between the second sleeve and the third sleeve, and the inner wall of the third sleeve.

[0013] As a preferred technical solution of the present invention, a clamping structure is arranged inside the synchronization block. The clamping structure includes a first connecting pin and a second connecting pin. The first connecting pin and the second connecting pin respectively penetrate through both sides of the synchronization block. A first connecting bar and a second connecting bar are respectively rotatably connected to the first connecting pin and the second connecting pin. An electric rod is connected between the first connecting bar and the second connecting bar. Telescopic rods are arranged inside the bottom ends of the first connecting bar and the second connecting bar. A first claw and a second claw are respectively connected to the end portions of the telescopic rods of the first connecting bar and the second connecting bar, and both the first claw and the second claw are connected to the end portions of the telescopic rods through fixing pins.

[0014] As a preferred technical solution of the present invention, the claw one and the claw two are both slidably connected to the inside of the sliding groove two, and the claw one and the claw two are close to or far away from each other, and the bottom corners of the claw one and the claw two are provided with matching teeth.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A protective component is provided, and the moving block and the synchronous block are moved synchronously so that the copper block between the moving block and the synchronous block is moved, and the copper block can be processed without putting the hand close to the inside of the protective frame, so as to avoid the danger caused by the hand being too close to the cutting machine when cutting the reed, and the two ends of the copper block are moved synchronously to avoid the copper block from tilting due to manual movement, so that the quality of the cut reed is better;

[0017] A surface grinding structure is provided. When the copper block is cut into two sections, the two cross sections of the copper block can be grinded by the cutter of the cutting machine, and the moving block located on the smooth surface will swing back and forth along the smooth surface, so that the surface of the reed is polished smoother, thereby reducing the surface processing time of the reed in the later stage, and the cross section of the brass block is relatively smooth.

[0018] The copper block can be synchronously moved in the same direction by rotating the threaded rod 1 and the threaded rod 2. When the moving block moves to the smooth surface, the cut copper block can be polished. The threaded rod 1 and the threaded rod 2 can be rotated in the opposite direction to move the copper block back to the initial position. The copper block can be processed again by placing the end of the copper block against the fixed groove of the moving block. It is more convenient to cut the copper block to make the reed.

[0019] A clamping structure is provided, and the copper block is clamped by claw one and claw two. Not only will the copper block not fall off from between the moving block and the synchronous block when the copper block is moved and cut, but sufficient clamping force can be provided when the cross section of the copper block is polished, ensuring that the copper block is firmly fixed under the synchronous block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a main structural diagram of a reed cutting device for harmonica processing according to the present invention;

[0022] Figure 2 A schematic diagram of a cutting state of a cutting machine of a reed cutting device for harmonica processing according to the present invention;

[0023] Figure 3 A schematic diagram of a protective component of a reed cutting device for harmonica processing according to the present invention;

[0024] Figure 4It is a schematic diagram of a synchronous assembly of a reed cutting device for harmonica processing according to the present invention;

[0025] Figure 5 It is a schematic diagram of the surface grinding structure of a reed cutting device for harmonica processing according to the present invention;

[0026] Figure 6 A schematic diagram of a telescopic spring of a reed cutting device for harmonica processing according to the present invention;

[0027] Figure 7 A schematic diagram of a sleeve of a reed cutting device for harmonica processing according to the present invention;

[0028] Figure 8 It is a schematic diagram of the clamping structure of a reed cutting device for harmonica processing according to the present invention;

[0029] Fig. 9 It is a schematic diagram of the interior of a synchronization block of a reed cutting device for harmonica processing according to the present invention;

[0030] Fig.10 The present invention is a schematic diagram of a telescopic rod of a reed cutting device for harmonica processing.

[0031] In the figure: 1. cutting workbench; 2. cutting machine; 3. reserved groove; 4. protection frame; 5. protection component; 6. surface grinding structure; 7. clamping structure; 8. fixed frame; 51. sliding groove one; 52. sliding groove two; 53. threaded rod one; 54. rotating handle; 55. moving block; 56. synchronization component; 57. matching strip; 58. threaded rod two; 59. synchronization block; 61. smooth surface; 62. telescopic spring; 63. sleeve one; 64. sleeve two; 65. sleeve three; 66. chamfer; 71. connecting pin one; 72. connecting pin two; 73. claw one; 74. claw two; 75. connecting strip one; 76. connecting strip two; 77. electric rod; 78. telescopic rod; 79. fixing pin; 710. matching tooth. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1-Figure 4As shown, a reed cutting device for harmonica processing includes a cutting workbench 1, a cutting machine 2 and a fixing frame 8. A reserved groove 3 is provided on the surface of the cutting workbench 1. The cutting machine 2 is located directly above the reserved groove 3, and the cutting machine 2 is rotatably connected to the top of the fixing frame 8. The staff can place the raw copper block for making the reed on the surface of the cutting workbench 1, so that the blade of the cutting machine 2 can cut the copper block into sheets by pressing down the cutting machine 2, thereby becoming the raw material for making the reed; a protective frame 4 is installed on the surface of the cutting workbench 1 and located at the reserved groove 3, and the copper block can be placed horizontally inside the protective frame 4. The protective frame 4 is provided with a protective assembly 5 inside, and the protective assembly 5 includes a sliding groove 1 51 and a sliding groove 2 52. The sliding groove 1 51 and the sliding groove 2 52 are respectively opened on the opposite surfaces inside the protective frame 4, and the positions of the sliding groove 1 51 and the sliding groove 2 52 correspond to each other. The protective frame 4 is inside and is located in the direction of the sliding groove 1 51, and the threaded rod 1 53 is rotatably connected. The middle of the threaded rod 1 53 and the internal thread connection of the sliding groove 1 51 is connected with a moving block 55. The protective frame 4 is inside and is located in the direction of the sliding groove 2 52, and the threaded rod 2 58 is rotatably connected. The middle of the threaded rod 2 58 and the internal thread connection of the sliding groove 2 52 is connected. There is a synchronization block 59, and the copper block can be passed through the interior of the synchronization block 59, and the copper block is limited by the two sides of the bottom end of the synchronization block 59, and the end of the copper block is against the fixed groove opened on the side wall of the moving block 55, so that the copper block is supported on the protective frame 4, and then the copper block can be cut after the cutting machine 2 is lowered, and the tool of the cutting machine 2 corresponds to the position of the reserved groove 3. A synchronization component 56 for keeping the threaded rod 1 53 and the threaded rod 2 58 rotating synchronously is provided between the threaded rod 1 53 and the threaded rod 2 58. The thread pitch of the threaded rod 1 53 and the threaded rod 2 58 is the same, and the threaded rod 1 53 and the threaded rod 2 58 rotate synchronously. The threaded rod 53 and the moving block 55 can be rotated to transmit to each other, and the moving block 55 can move along the inside of the sliding groove 51. At the same time, the threaded rod 53 drives the threaded rod 2 58 to rotate through the synchronous assembly 56, so that the threaded rod 2 58 drives the synchronous block 59 to move along the inside of the sliding groove 2 52. At this time, the moving block 55 and the synchronous block 59 move synchronously. At this time, the copper block located at the moving block 55 and the synchronous block 59 will also approach the rotating cutting machine 2 until the copper block is completely cut into thin sheets by the cutting machine 2. The copper block can be brought close to the cutting machine 2 without holding it by hand, which is safer.

[0035] See also Figure 3 and Figure 4As shown, the protective frame 4 is in a "U" shape, and the moving block 55, the synchronization component 56, and the synchronization block 59 are located at three edges of the protective frame 4. Both the top and bottom of the moving block 55 are provided with engaging strips 57, and the engaging strips 57 are slidably connected to the inside of the first sliding groove 51. The synchronization block 59 is slidably connected to the inside of the second sliding groove 52. The copper block can be supported inside the moving block 55 and the synchronization block 59, and the moving block 55 and the synchronization block 59 move along the inside of their respective sliding grooves. The reserved groove 3 is located in the exact middle of the protective frame 4. When cutting the copper block, the tool of the cutting machine 2 is placed at the reserved groove 3. Synchronously moving the moving block 55, the synchronization block 59, and the copper block only requires pushing one end of the copper block against the moving block 55 by hand, without the need to bring the hand close to the cutting machine 2, which is relatively safe.

[0036] Please refer to Figure 3 As shown, the synchronization component 56 includes a synchronous belt and two synchronous pulleys. The two synchronous pulleys are respectively arranged on the first threaded rod 53 and the second threaded rod 58, and the two synchronous pulleys are connected by the synchronous belt. At the end of the first threaded rod 53 and outside the reserved groove 3, a rotating handle 54 is provided. The synchronous pulley on the first threaded rod 53 can drive the synchronous pulley on the second threaded rod 58, so that the first threaded rod 53 and the second threaded rod 58 can rotate synchronously, facilitating the synchronous movement of the moving block 55 and the synchronization block 59.

[0037] Please refer to Figure 4 As shown, the moving block 55 is located on the threaded section of the first threaded rod 53, and the synchronization block 59 is located on the threaded section of the second threaded rod 58. The moving block 55 corresponds to the synchronization block 59, and the moving block 55 and the synchronization block 59 move synchronously. When the moving block 55 is located on the threaded section of the first threaded rod 53 and the synchronization block 59 is located on the threaded section of the second threaded rod 58, at this time, the moving block 55 and the synchronization block 59 move synchronously, and the copper block can be pushed towards the cutting machine 2.

[0038] It should be noted that when it is necessary to process the reeds of the harmonica, it is necessary to cut the copper block into thin sheets by a cutting device to make the reeds. Specifically, the copper block is placed horizontally at the moving block 55 and the synchronous block 59 inside the protective frame 4, and one end of the copper block is against the inside of the fixed groove of the moving block 55, and the middle of the copper block is located between the bottom legs of the synchronous block 59. When cutting the copper block, it is only necessary to use the hand to press the exposed end of the copper block. At this time, the rotating handle 54 is turned to rotate the threaded rod 1 53, and the threaded rod 1 53 is threadedly connected to the moving block 55, so that the moving block 55 can be moved along the threaded rod 1 53. At the same time, the synchronous wheel on the threaded rod 1 53 drives the synchronous wheel of the threaded rod 2 58 to rotate, and the threaded rod 2 58 and the synchronous block 59 is threadedly connected, and the synchronization block 59 moves along the threaded rod 2 58. At this time, the moving block 55 and the synchronization block 59 move synchronously, so as to move the copper block at the moving block 55 and the synchronization block 59. After moving to the appropriate position, the hand placed on the copper block is changed to press down the cutting machine 2, so that the cutting machine 2 cuts the copper block. While the moving block 55 moves along the inside of the sliding groove 1 51, the synchronization block 59 moves along the inside of the sliding groove 2 52. The copper block between the moving block 55 and the synchronization block 59 is close to the cutting machine 2, and the material at the end of the copper block is cut off to obtain the raw material for the harmonica reed, so that the copper block is close to the cutting machine 2 without hurting the hand, and the two ends of the copper block move synchronously to avoid the copper block from tilting due to manual movement.

[0039] See also Figure 2 , Figure 5 and Figure 6As shown, one end of the threaded rod 53 and the surface of the moving block 55 are provided with a surface grinding structure 6, and the surface grinding structure 6 includes a smooth surface 61, and the smooth surface 61 is provided at the two end positions of the threaded rod 53, and the interior of the moving block 55 is movably connected with the smooth surface 61 of the threaded rod 53. When the moving block 55 moves to the smooth surfaces 61 at both ends of the threaded rod 53, the threaded rod 53 can rotate relative to the moving block 55, and the moving block 55 will not continue to move along the threaded rod 53. The two smooth surfaces 61 of the threaded rod 53 are both provided with telescopic springs 62, and the telescopic springs 62 are in contact with the moving block 55. When the moving block 55 moves to the two end positions, the telescopic springs 62 can push the moving block 55 to move in the opposite direction, so that the moving block 55 can return to the threaded rod 53 at a later time. At the threaded section of rod 1 53, the position of moving block 55 is staggered with the position of synchronous block 59, and the tool of cutting machine 2 is located between moving block 55 and synchronous block 59. Threaded rod 1 53 is transmitted with moving block 55, and synchronous block 59 is transmitted with threaded rod 2 58. At this time, the copper block moves synchronously with moving block 55 and synchronous block 59. When moving block 55 contacts with smooth surface 61 of threaded rod 1 53, synchronous block 59 will still move along threaded rod 2 58, so that moving block 55 and synchronous block 59 are staggered, and the cut copper reed will be retained in the inside of moving block 55, and the copper block will continue to move with synchronous block 59. The cutting machine 2 can be used to grind the cut part of the copper block on moving block 55 and synchronous block 59 to make the end face smoother, and the polished copper surface reduces the time for later processing of the reed.

[0040] See also Figure 5 and Figure 6 As shown, the threaded section of threaded rod 1 53 near the synchronous wheel is in the same position as the threaded section of threaded rod 2 58 near the synchronous wheel. Since the positions of moving block 55 and synchronous block 59 are not flush, threaded rod 1 53 and threaded rod 2 58 can be rotated in opposite directions to make moving block 55 and synchronous block 59 move in opposite directions until moving block 55 and synchronous block 59 are close to the synchronous wheel. Threaded rod 1 53 and threaded rod 2 58 can be rotated again to move moving block 55 and synchronous block 59 synchronously. At this time, a copper block can be placed between moving block 55 and synchronous block 59 for cutting.

[0041] See also Figure 7As shown, the surface of the movable block 55 is provided with a sleeve 1 63, a sleeve 2 64 and a sleeve 3 65, and the sleeve 1 63, the sleeve 2 64 and the sleeve 3 65 are internally fitted with each other. The fitting surfaces of the sleeve 1 63 and the sleeve 2 64, the fitting surfaces of the sleeve 2 64 and the sleeve 3 65, and the inner wall of the sleeve 3 65 are all provided with a chamfer 66 for convenient insertion of the copper bar. Each sleeve corresponds to a copper block of a cross-sectional size, and the sleeve 1 63, the sleeve 2 64 and the sleeve 3 65 are fitted with each other, and the chamfer 66 of each sleeve facilitates them to fit together. Not only can the ends of the copper block be preliminarily fixed by each sleeve, but also the copper sheet of the copper block is retained inside the sleeve after the copper block is cut, and the protruding copper sheet can be pulled out of the sleeve, so that the copper sheet can be preliminarily polished on both sides when it contacts the cutting machine 2.

[0042] It should be noted that the end of the copper block is restricted by sleeve one 63, sleeve two 64 and sleeve three 65. The corresponding sleeve one 63, sleeve two 64 and sleeve three 65 are selected according to the cross-sectional size model of the copper block, so that the end of the copper block is fixed inside the sleeve. When the copper block located between the moving block 55 and the synchronous block 59 contacts the blade of the cutting machine 2, the end surface of the copper block can be cut. After the copper block is cut, the copper sheet remains inside each sleeve. Since the threaded rod one 53 drives the moving block 55 to move along the sliding groove one 51, when the moving block 55 moves to the smooth surface 61, the moving block 55 cannot continue to move along the threaded rod one 53, but the threaded rod two 58 drives the synchronous block 59 to move along the sliding groove two 52, so that the synchronous block 59 can continue to move along the threaded rod two 58. At this time, the positions of the moving block 55 and the synchronous block 59 are relatively staggered, so that the tool of the cutting machine 2 grinds both sides of the copper block cut, thereby reducing the later grinding treatment on the surface of the copper sheet.

[0043] See also Figure 2 , Figure 8 and Fig. 9As shown, a clamping structure 7 is provided inside the synchronization block 59, and the clamping structure 7 includes a connecting pin 1 71 and a connecting pin 2 72. The connecting pin 1 71 and the connecting pin 2 72 respectively penetrate the two sides of the synchronization block 59, and the connecting pin 1 71 and the connecting pin 2 72 are respectively rotatably connected with a connecting bar 1 75 and a connecting bar 2 76, and an electric rod 77 is connected between the connecting bar 1 75 and the connecting bar 2 76. The connecting bar 1 75 is rotatably connected to the connecting pin 1 71, and the connecting bar 2 76 is rotatably connected to the connecting pin 2 72. The connecting bar 1 75 and the connecting bar 2 76 are close to or away from each other, and the bottom ends of the connecting bar 1 75 and the bottom ends of the connecting bar 2 76 are both provided with an extension bar. The retractable rod 78, the ends of the telescopic rod 78 of the connecting bar 1 75 and the ends of the telescopic rod 78 of the connecting bar 2 76 are respectively connected with claw 1 73 and claw 2 74, and claw 1 73 and claw 2 74 are connected to the ends of the telescopic rod 78 by fixing pin 79. The change of the length of the telescopic rod 78 causes the connecting bar 1 75 and the connecting bar 2 76 to change. The swing of the connecting bar 1 75 and the connecting bar 2 76 drives the position of claw 1 73 and claw 2 74 to change. The claw 1 73 and claw 2 74 approaching the middle can clamp the copper block below, and ensure that the copper block at claw 2 74 will not move when the moving block 55 and the synchronization block 59 are moved.

[0044] See also Fig. 9 and Fig.10 As shown, claw one 73 and claw two 74 are both slidably connected to the inside of sliding groove two 52, and claw one 73 and claw two 74 are close to or away from each other, and matching teeth 710 are provided at the bottom corners of claw one 73 and claw two 74. When the electric rod 77 is extended or shortened, connecting bar one 75 and connecting bar two 76 swing, and the telescopic rod 78 can be extended and retracted at the bottom ends of connecting bar one 75 and connecting bar two 76, and claw one 73 or claw two 74 can slide along the inside of sliding groove two 52, so as to clamp the copper block, and when the cut copper block contacts the tool of the cutting machine 2, sufficient holding force can ensure that the copper block will not deviate or bend when contacting the cutting machine 2.

[0045] It should be noted that when the cutting machine 2 contacts the copper block, the blade of the cutting machine 2 can press against the copper block, which can reduce the copper block from falling off between the moving block 55 and the synchronous block 59. In order to further ensure that the copper block does not loosen, the copper block can be clamped by the clamping structure 7 of the synchronous block 59. Specifically, the copper block is placed on the foot of the synchronous block 59, and the electric rod 77 is extended so that the connecting strip 1 75 and the connecting strip 2 76 at both ends of the electric rod 77 are close to or away from each other. At this time, the connecting strip 1 75 rotates around the connecting pin 1 71, and the connecting strip 2 76 rotates around the connecting pin 2 72, so that the distance between the clamping claw 1 73 and the clamping claw 2 74 can be changed, and the connecting strip 1 75 and the connecting strip 2 76 can be adjusted. The telescopic rod 78 inside the connecting strip 1 75 and the connecting strip 2 76 will also extend and retract along their respective interiors, so that the claw 1 73 and the claw 2 74 are still located inside the sliding groove 2 52, and the distance between the claw 1 73 and the claw 2 74 is adjusted according to the cross-sectional size model of the copper block, and the copper block is fixed at the matching teeth 710 of the claw 1 73 and the claw 2 74, so that the copper block is clamped at the synchronization block 59, and the copper block is cut by the cutting machine 2 to ensure that the copper block can be firmly fixed at the synchronization block 59; because the copper block is restricted by the matching teeth 710 of the two claws, the copper block is firmly fixed inside the synchronization block 59, and when the cross section of the copper block contacts the tool of the cutting machine 2, the exposed copper block will not swing or tilt significantly.

[0046] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A reed cutting device for harmonica processing, comprising a cutting workbench (1), a cutting machine (2) and a fixing frame (8), wherein a reserved groove (3) is provided on the surface of the cutting workbench (1), the cutting machine (2) is located directly above the reserved groove (3), and the cutting machine (2) is rotatably connected to the top of the fixing frame (8); characterized in that: A protective frame (4) is installed on the surface of the cutting workbench (1) at the reserved groove (3). A protective component (5) is arranged inside the protective frame (4). The protective component (5) includes a first sliding groove (51) and a second sliding groove (52). The first sliding groove (51) and the second sliding groove (52) are respectively formed on the opposite inner surfaces of the protective frame (4). A first threaded rod (53) is rotatably connected inside the protective frame (4) in the direction of the first sliding groove (51). A moving block (55) is threadedly connected to the middle of the first threaded rod (53) inside the first sliding groove (51). A second threaded rod (58) is rotatably connected inside the protective frame (4) in the direction of the second sliding groove (52). A synchronization block (59) is threadedly connected to the middle of the second threaded rod (58) inside the second sliding groove (52). A synchronization component (56) for keeping the first threaded rod (53) and the second threaded rod (58) rotating synchronously is arranged between the first threaded rod (53) and the second threaded rod (58). The thread pitches of the first threaded rod (53) and the second threaded rod (58) are the same, and the first threaded rod (53) and the second threaded rod (58) rotate synchronously; The protective frame (4) is in a "U" shape, and the moving block (55), the synchronization component (56) and the synchronization block (59) are located at three edges of the protective frame (4). Matching strips (57) are provided at the top and bottom of the moving block (55). The matching strips (57) are slidably connected to the inside of the first sliding groove (51). The synchronization block (59) is slidably connected to the inside of the second sliding groove (52). The reserved groove (3) is located in the exact middle of the protective frame (4); The synchronization component (56) includes a synchronous belt and two synchronous wheels. The two synchronous wheels are respectively arranged on the first threaded rod (53) and the second threaded rod (58), and the two synchronous wheels are connected by a synchronous belt. A rotating handle (54) is arranged at the end of the first threaded rod (53) outside the reserved groove (3); The moving block (55) is located on the threaded section of the first threaded rod (53), and the synchronization block (59) is located on the threaded section of the second threaded rod (58). The moving block (55) corresponds to the synchronization block (59), and the moving block (55) and the synchronization block (59) move synchronously.

2. A reed cutting device for harmonica processing according to claim 1, characterized in that: A surface grinding structure (6) is arranged on one end of the first threaded rod (53) and the surface of the moving block (55). The surface grinding structure (6) includes a smooth surface (61). The smooth surface (61) is arranged at both end positions of the first threaded rod (53). The inside of the moving block (55) is movably connected to the smooth surface (61) of the first threaded rod (53). Telescopic springs (62) are sleeved on both smooth surfaces (61) of the first threaded rod (53), and the telescopic springs (62) are in contact with the moving block (55). The position of the moving block (55) is offset from the position of the synchronization block (59). The cutter of the cutting machine (2) is located between the moving block (55) and the synchronization block (59).

3. A reed cutting device for harmonica processing according to claim 2, characterized in that: The threaded section of the first threaded rod (53) near the synchronous wheel is in the same position as the threaded section of the second threaded rod (58) near the synchronous wheel.

4. A reed cutting device for harmonica processing according to claim 3, characterized in that: The surface of the moving block (55) is provided with a sleeve 1 (63), a sleeve 2 (64) and a sleeve 3 (65). The sleeve 1 (63), the sleeve 2 (64) and the sleeve 3 (65) are fitted inside each other. The fitting surfaces of the sleeve 1 (63) and the sleeve 2 (64), the fitting surfaces of the sleeve 2 (64) and the sleeve 3 (65), and the inner wall of the sleeve 3 (65) are all provided with chamfered corners (66) for facilitating the insertion of the copper strip.

5. A reed cutting device for harmonica processing according to any one of claims 1 to 4, characterized in that: A clamping structure (7) is provided inside the synchronization block (59), and the clamping structure (7) comprises a connecting pin 1 (71) and a connecting pin 2 (72). The connecting pin 1 (71) and the connecting pin 2 (72) respectively penetrate two sides of the synchronization block (59), and the connecting pin 1 (71) and the connecting pin 2 (72) are rotatably connected to a connecting bar 1 (75) and a connecting bar 2 (76) respectively, and an electric rod (77) is connected between the connecting bar 1 (75) and the connecting bar 2 (76). A telescopic rod (78) is provided inside the bottom end of the connecting bar 1 (75) and the bottom end of the connecting bar 2 (76), and the ends of the telescopic rod (78) of the connecting bar 1 (75) and the ends of the telescopic rod (78) of the connecting bar 2 (76) are respectively connected to a clamping claw 1 (73) and a clamping claw 2 (74), and the clamping claw 1 (73) and the clamping claw 2 (74) are both connected to the ends of the telescopic rod (78) through a fixing pin (79).

6. A reed cutting device for harmonica processing according to claim 5, characterized in that: The first clamping claw (73) and the second clamping claw (74) are both slidably connected to the inside of the second sliding groove (52), and the first clamping claw (73) and the second clamping claw (74) are close to or away from each other, and the bottom corners of the first clamping claw (73) and the second clamping claw (74) are both provided with matching teeth (710).

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