Rotary core structure of saxophone mouthpiece

Abstract

The saxophone mouthpiece rotating core-pulling structure relates to the technical field of forming structure and comprises a mold core, an arc-shaped mold core rotatingly arranged in the mold core, a top plate vertically lifting at the top of the mold core, a rack vertically and fixedly connected to the top plate, a driving toothed segment arranged on the arc-shaped mold core, a gear assembly meshing with the driving toothed segment, and a locking block fixedly arranged on the mold core. When the top plate is attached to the mold core, the lower end of the locking block abuts against the upper end of the arc-shaped mold core. The saxophone mouthpiece rotating core-pulling structure solves the problem that in the traditional technology, the mold core in the reverse structure of the saxophone mouthpiece is difficult to separate due to the limitation of the forming structure during the injection molding process, thereby reducing the forming efficiency of the saxophone mouthpiece.

Description

Technical Field

[0001] This utility model relates to the field of molding structure technology, specifically to a rotating core-pulling structure for saxophone mouthpieces. Background Technology

[0002] A unique inverted design can be a differentiating selling point for a product, meeting the diverse needs of different players for personalized and high-quality mouthpieces. Some professional players may prefer mouthpieces with a special inverted structure that delivers a unique tone or playing experience. This helps enhance the product's competitiveness in the market. A well-designed inverted structure allows for easier disassembly and installation of components when cleaning, repairing, or upgrading the mouthpiece, without damaging its overall structure.

[0003] A prior art patent with publication number CN202650510U discloses a solution including a mouthpiece body and a ring. The mouthpiece body includes an air chamber portion that tapers from end to front, forming an angle on its outer circumference, and a blow-in portion is formed at the front end of the air chamber portion. The ring is an integrally formed circular ring and is fitted onto the outer circumference of the air chamber portion of the mouthpiece body. This invention allows a spring to be placed and covered on the blow-in portion. When the ring is fitted onto the mouthpiece body, it simultaneously locks the spring, fixing its position in the blow-in portion and preventing it from falling off. This invention has the advantages of simple structure, easy manufacturing, and low cost. It can also produce special rings for mouthpieces of different sizes, allowing users or beginners to purchase products with the same function at a lower price.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] Because saxophone mouthpieces have an undercut structure, during the injection molding process, the mold core within the undercut structure is difficult to separate due to the limitations of the molding structure, thus reducing the molding efficiency of saxophone mouthpieces.

[0006] As can be seen from the above, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a rotating core-pulling structure for saxophone mouthpieces. This structure solves the problem that, due to the inverted structure of the saxophone mouthpiece, it is difficult to separate the mold core within the inverted structure during injection molding, thus reducing the molding efficiency of the saxophone mouthpiece.

[0008] To achieve the above objectives, the present invention provides the following technical solution.

[0009] A saxophone mouthpiece rotating core-pulling structure includes a mold core, an arc-shaped mold core rotatably disposed within the mold core, a top plate that rises and falls vertically above the mold core, a rack that is vertically fixed to the top plate, a drive toothed section on the arc-shaped mold core, the rack engaging with the drive toothed section via a gear assembly, a locking block fixedly disposed on the mold core, and when the top plate is in contact with the mold core, the lower end of the locking block abuts against the upper end of the arc-shaped mold core.

[0010] As an optimized solution, a mounting base is fixed inside the mold core, and a mounting groove is provided inside the mounting base, in which the arc-shaped mold core is slidably mounted.

[0011] As an optimized solution, the inner walls of the mounting groove are provided with arc-shaped sliding grooves, and the side walls of the arc-shaped mold core are fixed with arc-shaped sliders that are slidably constrained within the arc-shaped sliding grooves.

[0012] As an optimized solution, a limiting block is fixed in the mounting groove, a limiting protrusion is fixedly connected to the lower end of the limiting block, and a limiting segment that abuts against the limiting protrusion is fixedly connected to the side wall of the arc-shaped mold core near the upper end.

[0013] As an optimized solution, the gear assembly includes a driven gear rotatably mounted in the mounting base, the driven gear meshing with the drive tooth segment, and a driving gear rotatably mounted outside the mold core, meshing with the driven gear, the driving gear also meshing with the rack.

[0014] As an optimized solution, a base is fixedly connected to the outer wall of the mold core, and the drive gear is rotatably mounted on the base.

[0015] As an optimized solution, a guide seat is fixedly connected to the outer wall of the mold core, and the guide seat has a guide hole to avoid the rack.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] When the mold is closed, the top plate moves down, and the top plate drives the rack to slide. The rack drives the driving gear and the driven gear to rotate. The driven gear uses the drive tooth segment to drive the arc-shaped mold core into the mold cavity to participate in the saxophone mouthpiece undercut forming work. At the same time, the top plate drives the locking block to move down, and the lower end of the locking block abuts against the upper end of the arc-shaped mold core to lock and position the arc-shaped mold core.

[0018] After the saxophone mouthpiece is formed, the mold is opened. The top plate moves up, and the locking block moves up with the top plate, releasing the locking of the arc-shaped mold core. At the same time, the rack moves up, and the driving gear and driven gear drive the arc-shaped mold core to slide upward along the arc-shaped slide groove. The arc-shaped mold core is pulled out from the undercut cavity of the saxophone mouthpiece, realizing the core pulling action. It is convenient and quick, and improves the forming efficiency of the saxophone mouthpiece. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram: 1-Mold core; 2-Mounting base; 3-Arc-shaped mold core; 4-Arc-shaped slide groove; 5-Arc-shaped slider; 6-Drive toothed section; 7-Driven gear; 8-Drive gear; 9-Rack; 10-Guide seat; 11-Top plate; 12-Locking block; 13-Limiting block; 14-Limiting protrusion; 15-Limiting section; 16-Saxophone mouthpiece; 17-Base. Detailed Implementation

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0023] like Figure 1 As shown, the saxophone mouthpiece rotating core-pulling structure includes a mold core 1, an arc-shaped mold core 3 rotatably disposed inside the mold core 1, a top plate 11 that rises and falls vertically above the mold core 1, a rack 9 vertically fixed to the top plate 11, a drive toothed section 6 disposed on the arc-shaped mold core 3, the rack 9 meshing with the drive toothed section 6 through a gear assembly, a locking block 12 fixedly disposed on the mold core 1, and when the top plate 11 is in contact with the mold core 1, the lower end of the locking block 12 abuts against the upper end of the arc-shaped mold core 3.

[0024] The mold core 1 is fixed with a mounting base 2, and the mounting base 2 has a mounting groove. The arc-shaped mold core 3 is slidably installed in the mounting groove.

[0025] The mounting groove has an arc-shaped sliding groove 4 on its inner wall, and the arc-shaped mold core 3 has an arc-shaped slider 5 fixedly connected to the opposite side wall and slidably constrained within the arc-shaped sliding groove 4.

[0026] A limiting block 13 is fixed in the mounting groove. A limiting protrusion 14 is fixed to the lower end of the limiting block 13. A limiting section 15 that abuts against the limiting protrusion 14 is fixed to the side wall of the arc-shaped mold core 3 near the upper end.

[0027] The gear assembly includes a driven gear 7 rotatably mounted in the mounting base 2, which meshes with the drive toothed section 6. A drive gear 8, which meshes with the driven gear 7, is rotatably mounted on the outside of the mold core 1. The drive gear 8 also meshes with the rack 9.

[0028] A base 17 is fixedly connected to the outer wall of the mold core 1, and the drive gear 8 is rotatably mounted on the base 17.

[0029] A guide seat 10 is fixedly connected to the outer wall of the mold core 1, and a guide hole for avoiding the rack 9 is opened on the guide seat 10.

[0030] The device innovates only the structure of the inverted molding part of the saxophone mouthpiece 16. The other structures involved in the mold are the same as the existing mold structure of the saxophone mouthpiece 16. Since they are not innovative in this solution, they will not be described in detail here.

[0031] The working principle of this device is as follows:

[0032] When the mold is closed, the top plate 11 moves down, and the top plate 11 drives the rack 9 to slide. The rack 9 drives the driving gear 8 and the driven gear 7 to rotate. The driven gear 7 uses the driving tooth segment 6 to drive the arc-shaped mold core 3 into the mold cavity to participate in the undercut forming of the saxophone mouthpiece 16. At the same time, the top plate 11 drives the locking block 12 to move down. The lower end of the locking block 12 abuts against the upper end of the arc-shaped mold core 3 to lock and position the arc-shaped mold core 3.

[0033] After the saxophone mouthpiece 16 is formed, the mold opening process is carried out. The top plate 11 moves upward, and the locking block 12 moves upward with the top plate 11, releasing the locking of the arc-shaped mold core 3. At the same time, the rack 9 moves upward, and the driving gear 8 and the driven gear 7 drive the arc-shaped mold core 3 to slide upward along the arc-shaped slide groove 4. The arc-shaped mold core 3 is pulled out from the undercut cavity of the saxophone mouthpiece 16, realizing the core pulling action, which is convenient and quick and improves the forming efficiency of the saxophone mouthpiece 16.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A rotating core-pulling structure for a saxophone mouthpiece, characterized in that: The device includes a mold core (1), an arc-shaped mold core (3) is rotatably provided inside the mold core (1), a top plate (11) is vertically raised and lowered above the mold core (1), a rack (9) is vertically fixed on the top plate (11), a drive toothed section (6) is provided on the arc-shaped mold core (3), the rack (9) meshes with the drive toothed section (6) through a gear assembly, a locking block (12) is fixed on the mold core (1), and when the top plate (11) is in contact with the mold core (1), the lower end of the locking block (12) abuts against the upper end of the arc-shaped mold core (3).

2. The saxophone mouthpiece rotating core-pulling structure according to claim 1, characterized in that: The mold core (1) is fixed with a mounting base (2), and the mounting base (2) has a mounting groove. The arc-shaped mold core (3) is slidably installed in the mounting groove.

3. The saxophone mouthpiece rotating core-pulling structure according to claim 2, characterized in that: The mounting groove has an arc-shaped sliding groove (4) on its inner wall, and the arc-shaped mold core (3) has an arc-shaped slider (5) fixed to its side wall and slidably constrained within the arc-shaped sliding groove (4).

4. The saxophone mouthpiece rotating core-pulling structure according to claim 2, characterized in that: A limiting block (13) is fixed in the mounting groove. A limiting protrusion (14) is fixed to the lower end of the limiting block (13). A limiting section (15) that abuts against the limiting protrusion (14) is fixed to the side wall of the arc-shaped mold core (3) near the upper end.

5. The saxophone mouthpiece rotating core-pulling structure according to claim 2, characterized in that: The gear assembly includes a driven gear (7) rotatably mounted in the mounting base (2), the driven gear (7) meshing with the drive tooth segment (6), and a drive gear (8) rotatably mounted on the outside of the mold core (1) meshing with the driven gear (7), the drive gear (8) also meshing with the rack (9).

6. The saxophone mouthpiece rotating core-pulling structure according to claim 5, characterized in that: A base (17) is fixedly connected to the outer wall of the mold core (1), and the drive gear (8) is rotatably mounted on the base (17).

7. The saxophone mouthpiece rotating core-pulling structure according to claim 1, characterized in that: A guide seat (10) is fixedly connected to the outer wall of the mold core (1), and a guide hole is provided on the guide seat (10) to avoid the rack (9).

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