Plectrum with asymmetric edges and manufacturing die thereof

Abstract

The utility model relates to the field of guitar accessories, in particular to an edge-asymmetric plectrum and a manufacturing mold thereof, the edge-asymmetric plectrum comprises a clamping part and a plucking part located at the outer edge of the clamping part, the plucking part comprises a parting surface connected with a first clamping surface of the clamping part, the first plucking edge surface and the second plucking edge surface are respectively connected with the parting surface and are arranged on the parting surface far away from the clamping part, one end, far away from the parting surface, of the first plucking edge surface and one end, far away from the parting surface, of the second plucking edge surface are connected with the second clamping surface of the clamping part, and a plucking line is formed at the joint of the first plucking edge surface and the second plucking edge surface; and the first plucking edge surface and the second plucking edge surface are asymmetrically arranged. The mold comprises the upper forming unit, the lower forming unit and the middle forming unit which are matched with one another, injection molding of the edge asymmetric plectrum is achieved, the effective string contact area of the produced edge asymmetric plectrum is increased, and therefore the hand feeling and smoothness of the plectrum are improved.

Description

Technical Field

[0001] The utility model relates to the field of guitar accessories, in particular to an asymmetric guitar pick and a mold for making the guitar pick. Background Art

[0002] Guitar picks mainly include plastic picks, metal picks and wooden picks, etc. Among them, plastic picks are cheap and suitable for beginners.

[0003] There are currently two methods for manufacturing guitar picks. One is to cut and polish the edges of the plates. This method can produce an asymmetrical pick edge and increase the area that touches the strings. The disadvantages are long working hours, high costs, and high prices. The other method is to manufacture through molds. This manufacturing method has low costs, but the industry usually opens the molds symmetrically from top to bottom, and there will be mold lines on the edges that touch the strings, which will affect the tone of the performance. At the same time, due to the mold opening method, it is impossible to produce asymmetrical edges and the performance effect of a hand-picked pick cannot be achieved. Utility Model Content

[0004] To this end, the utility model provides an edge asymmetric pick and a manufacturing mold thereof, so as to overcome the problem that the injection molding production of the edge asymmetric pick cannot be realized in the prior art.

[0005] To achieve the above objectives, on the one hand, the utility model provides a pick with asymmetric edges, comprising:

[0006] A clamping portion and a string-picking portion located at the outer edge of the clamping portion,

[0007] The string-picking portion includes a parting surface connected to the first clamping surface of the clamping portion,

[0008] A first plucking edge surface and a second plucking edge surface are respectively connected to the parting surface and arranged on the parting surface away from the clamping part, one end of the first plucking edge surface and the second plucking edge surface away from the parting surface is connected to the second clamping surface of the clamping part, and the connection between the first plucking edge surface and the second plucking edge surface constitutes a plucking line, wherein the first plucking edge surface and the second plucking edge surface are arranged asymmetrically.

[0009] Furthermore, a projection line of the plucking line on the die-drawing surface of the clamping portion is a curve, wherein the die-drawing surface is perpendicular to the parting surface.

[0010] Furthermore, the projection line of the plucking line on the die drawing surface of the clamping portion is a straight line.

[0011] Furthermore, the angle between the projection line and the central vertical line on the die drawing surface is less than 50°, wherein the central vertical line is perpendicular to the parting surface.

[0012] Furthermore, the first clamping surface is provided with anti-slip grooves.

[0013] On the other hand, the utility model also provides a manufacturing mold for a pick with an asymmetric edge, comprising:

[0014] An upper molding unit, a lower molding unit and an intermediate molding unit cooperate with each other, wherein the intermediate molding unit includes a first core-pulling mold and a second core-pulling mold, wherein the first core-pulling mold and the second core-pulling mold respectively include a plurality of first concave cavities for molding the string-picking part.

[0015] Furthermore, the upper molding unit includes an upper molding surface for molding the clamping portion, and the lower molding unit includes a lower molding surface for molding the clamping portion, and the upper molding surface and the lower molding surface together form a second concave cavity for molding the clamping portion.

[0016] Further, the upper molding unit is provided with an upper air outlet channel communicating with the upper molding surface, and the lower molding unit is provided with a lower air outlet channel communicating with the lower molding surface.

[0017] Furthermore, the upper molding unit is provided with a pouring channel communicating with the upper molding surface.

[0018] Furthermore, the upper molding unit is provided with a positioning pin for cooperating with a positioning groove provided on the lower molding unit.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The asymmetric edge pick of the utility model has a longer picking line, which can increase the effective string contact area of ​​the pick, increase the pick feel and smoothness, and improve the tone.

[0021] (2) The utility model uses a mold to produce an asymmetrical edge that can only be produced by a hand-pick by setting up an upper molding unit, a lower molding unit and an intermediate molding unit, and at the same time removes the string-touching part and the mold line, so that the produced pick can achieve the playing effect of a hand-pick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the asymmetric edge pick of the embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the projection line of the asymmetric pick edge in an embodiment of the utility model;

[0024] Figure 3 An exploded view of a mold for manufacturing an embodiment of the utility model;

[0025] Figure 4 It is a structural schematic diagram of a molding unit in an embodiment of the utility model;

[0026] Figure 5 This is a schematic structural diagram of a first core-pulling mold according to an embodiment of the utility model;

[0027] The above drawings include the following reference numerals:

[0028] 1. Clamping part; 101. First clamping surface; 102. Second clamping surface; 103. Anti-slip pattern; 2. String-plucking part; 201. Parting surface; 202. First string-plucking edge surface; 203. Second string-plucking edge surface; 204. String-plucking line; 205. Projection line; 3. Drawing surface; 301. Center vertical line; 4. Upper molding unit; 401. Upper molding surface; 402. Upper air outlet channel; 403. Casting channel; 404. Positioning pin; 5. Lower molding unit; 501. Lower molding surface; 502. Lower air outlet channel; 503. Positioning groove; 6. Intermediate molding unit; 61. First core-pulling mold; 62. Second core-pulling mold; 601. First concave cavity. DETAILED DESCRIPTION

[0029] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model are described clearly and completely. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the utility model.

[0031] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0033] See also Figure 1-5 , which are respectively a schematic diagram of the structure of the asymmetric pick at the edge of an embodiment of the utility model; a schematic diagram of the structure of the projection line of the asymmetric pick at the edge of an embodiment of the utility model; an exploded view of the manufacturing mold of an embodiment of the utility model; a schematic diagram of the structure of the upper molding unit of an embodiment of the utility model; a schematic diagram of the structure of the first core-pulling mold of an embodiment of the utility model.

[0034] The utility model provides a pick with asymmetric edges, comprising:

[0035] The clamping part 1 and the string-picking part 2 located at the outer edge of the clamping part 1,

[0036] The string-picking part 2 includes a parting surface 201 connected to the first clamping surface 101 of the clamping part 1.

[0037] A first plucking edge surface 202 and a second plucking edge surface 203 are respectively connected to the parting surface 201 and arranged on the parting surface 201 away from the clamping portion 1, one end of the first plucking edge surface 202 and the second plucking edge surface 203 away from the parting surface 201 is connected to the second clamping surface 102 of the clamping portion 1, and a plucking line 204 is formed at the connection between the first plucking edge surface 202 and the second plucking edge surface 203, wherein the first plucking edge surface 202 and the second plucking edge surface 203 are asymmetrically arranged, and it can be understood that the asymmetry includes point asymmetry, line asymmetry and surface asymmetry.

[0038] Specifically, a projection line 205 of the string-picking line 204 on the die-drawing surface 3 of the clamping portion 1 is a curve, wherein the die-drawing surface 3 is perpendicular to the parting surface 201 .

[0039] Specifically, the projection line 205 of the string-picking line 204 on the die-drawing surface 3 of the clamping portion 1 is a straight line.

[0040] Specifically, the angle between the projection line 205 and the central vertical line 301 on the die drawing surface 3 is less than 50°, wherein the central vertical line 301 is perpendicular to the parting surface 201 .

[0041] Specifically, the first clamping surface 101 is provided with an anti-slip pattern 103 , and the design style of the anti-slip pattern 103 is not specifically limited, and is used to increase the clamping strength of the pick.

[0042] Specifically, the material of the asymmetric edge pick is plastic, for example. The type and performance of the plastic are not specifically limited and can be set according to actual production.

[0043] On the other hand, the manufacturing mold of the edge asymmetric pick of the embodiment of the utility model includes an upper molding unit 4, a lower molding unit 5 and an intermediate molding unit 6 that cooperate with each other, wherein the intermediate molding unit 6 includes a first core-pulling mold 61 and a second core-pulling mold 62, wherein the first core-pulling mold 61 and the second core-pulling mold 62 respectively include a plurality of first concave cavities 601 for molding the string-pulling part 2.

[0044] Specifically, the material of the upper molding unit 4, the lower molding unit 5 and the middle molding unit 6 is, for example, mold steel, and the dimensional accuracy and fitting tolerance are not specifically limited, and only need to meet the requirements of GB / T 1800.2-2009 "Dimensional Tolerances of Mold Components".

[0045] Specifically, the upper molding unit 4 includes an upper molding surface 401 for molding the clamping part 1, and the lower molding unit 5 includes a lower molding surface 501 for molding the clamping part 1. The upper molding surface 401 and the lower molding surface 501 together form a second concave cavity for molding the clamping part 1.

[0046] Specifically, the upper molding unit 4 is provided with an upper air outlet channel 402 communicating with the upper molding surface 401, and the lower molding unit 5 is provided with a lower air outlet channel 502 communicating with the lower molding surface 501. It can be understood that the upper air outlet channel 402 and the lower air outlet channel 502 are used for exhaust during the injection molding process.

[0047] Specifically, the upper molding unit 4 is provided with a pouring channel 403 communicating with the upper molding surface 401 .

[0048] Specifically, the upper molding unit 4 is provided with a positioning pin 404 to cooperate with the positioning groove 503 provided in the lower molding unit 5. The sizes of the positioning pin 404 and the positioning groove 503 are not limited, and the assembly tolerance needs to meet the requirements specified in GB / T 1800.2-2009 "Dimensional Tolerances of Mold Components".

[0049] For those skilled in the art, according to the concept of the embodiments of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A pick with asymmetric edges, characterized in that: include: A clamping portion and a string-picking portion located at the outer edge of the clamping portion, The string-picking portion includes a parting surface connected to the first clamping surface of the clamping portion, A first plucking edge surface and a second plucking edge surface are respectively connected to the parting surface and arranged on the parting surface away from the clamping part, one end of the first plucking edge surface and the second plucking edge surface away from the parting surface is connected to the second clamping surface of the clamping part, and the connection between the first plucking edge surface and the second plucking edge surface constitutes a plucking line, wherein the first plucking edge surface and the second plucking edge surface are arranged asymmetrically.

2. The edge asymmetric pick according to claim 1, characterized in that: The projection line of the plucking line on the die-drawing surface of the clamping portion is a curve, wherein the die-drawing surface is perpendicular to the parting surface.

3. The edge asymmetric pick according to claim 1, characterized in that: The projection line of the string-picking line on the die-drawing surface of the clamping portion is a straight line.

4. The edge asymmetric pick according to claim 3, characterized in that: The angle between the projection line and the central vertical line on the die drawing surface is less than 50°, wherein the central vertical line is perpendicular to the parting surface.

5. The edge asymmetric pick according to claim 1, characterized in that: The first clamping surface is provided with anti-slip grooves.

6. A mold for manufacturing the asymmetric edge pick according to any one of claims 1 to 5, characterized in that: It comprises an upper molding unit, a lower molding unit and an intermediate molding unit which cooperate with each other, wherein the intermediate molding unit comprises a first core-pulling mold and a second core-pulling mold, wherein the first core-pulling mold and the second core-pulling mold respectively comprise a plurality of first concave cavities for molding the string-picking part.

7. The manufacturing mold according to claim 6, characterized in that: The upper molding unit includes an upper molding surface for molding the clamping portion, and the lower molding unit includes a lower molding surface for molding the clamping portion. The upper molding surface and the lower molding surface together enclose a second concave cavity for molding the clamping portion.

8. The manufacturing mold according to claim 7, characterized in that: The upper molding unit is provided with an upper air outlet channel communicating with the upper molding surface, and the lower molding unit is provided with a lower air outlet channel communicating with the lower molding surface.

9. The manufacturing mold according to claim 8, characterized in that: The upper molding unit is provided with a pouring channel communicating with the upper molding surface.

10. The manufacturing mold according to claim 6, characterized in that: The upper molding unit is provided with a positioning pin for cooperating with a positioning groove provided in the lower molding unit.

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