Die facilitating in-die deburring

Abstract

The utility model relates to the technical field of in-mold deburring of plastic parts, in particular to a mold convenient for in-mold deburring. Comprising an upper template, a middle template and a lower template, the upper mold plate is provided with a plurality of upper mold cavities, each upper mold cavity comprises an upper cavity body and an upper outer ring cavity, and the upper outer ring cavity is arranged around the upper cavity body; the middle mold plate is provided with a long-strip-shaped hole and a plurality of forming parts, and every two adjacent forming parts are arranged in a spaced mode. The lower mold plate is provided with a plurality of lower mold cavities and a plurality of channels, each lower mold cavity comprises a lower cavity body and a lower outer ring cavity, the lower outer ring cavities are arranged around the lower cavity bodies, and every two adjacent lower outer ring cavities are communicated through the corresponding channel; after the upper mold plate, the middle mold plate and the lower mold plate are closed, the forming part extends into the space between the upper cavity and the lower cavity to form a forming cavity, and the upper outer ring cavity, the lower outer ring cavity and the channel form a burr cavity; the structure that the whole burr cavity is communicated is achieved, the purpose that the whole burr is separated from all workpieces after forming and demolding are achieved, namely the purpose of deburring in a mold is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of removing burrs in a plastic part mold, in particular to a mold which is convenient for removing burrs in a mold. Background Art

[0002] In the process of plastic parts molding, burrs are inevitably generated on the edges of the workpiece. The burrs are usually removed one by one after the workpiece is molded and demolded. However, for small and large workpieces, the workload of removing burrs is very large, resulting in high production costs and low production efficiency. It cannot meet the production schedule requirements and needs to be improved. Summary of the invention

[0003] In order to overcome the problems of large workload and low production efficiency in the prior art for deburring, the utility model aims to provide a mold that is convenient for deburring in the mold, so as to achieve the purpose of deburring multiple workpieces at one time during the demoulding process, improve production efficiency and reduce labor costs.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] A mold convenient for in-mold burr removal, comprising an upper mold plate, a middle mold plate and a lower mold plate;

[0006] The upper mold plate is provided with a plurality of upper mold cavities, and a distance is set between two adjacent upper mold cavities, and each upper mold cavity comprises an upper cavity body and an upper outer ring cavity, and the upper outer ring cavity is arranged around the upper cavity body;

[0007] The middle template is provided with a long hole and a plurality of forming parts, the long hole penetrates the middle template along the thickness direction of the middle template, and two adjacent forming parts are arranged at a distance;

[0008] The lower mold plate is provided with a plurality of lower mold cavities and a plurality of channels, and the spacing between two adjacent lower mold cavities is set, each of the lower mold cavities includes a lower cavity body and a lower outer ring cavity, the lower outer ring cavity is arranged around the lower cavity body, and two adjacent lower outer ring cavities are connected through the channel;

[0009] After the upper template, the middle template and the lower template are molded together, the molding part penetrates into the upper cavity and the lower cavity to form a molding cavity, and the upper outer ring cavity, the lower outer ring cavity and the channel form a burr cavity.

[0010] Furthermore, the upper mold plate is also provided with an upper parting surface, the lower mold plate is provided with a lower parting surface, the channel is recessed in the lower parting surface, the central axes of the parting surfaces above the upper mold cavities are symmetrically arranged, and the central axes of the parting surfaces below the lower mold cavities are symmetrically arranged.

[0011] Furthermore, a gap is set between the upper parting surface and the lower parting surface.

[0012] Furthermore, the elongated hole is arranged along the length direction of the middle template, and a plurality of forming parts are symmetrically arranged with respect to the central axis of the elongated hole.

[0013] Furthermore, the lower mold plate is provided with a plurality of limiting grooves, one of the limiting grooves is located between two adjacent lower mold cavities, and the middle mold plate is provided with a plurality of lower protrusions, one of the lower protrusions is embedded in one of the limiting grooves.

[0014] Furthermore, the mold for in-mold burr removal also includes a base, the base is provided with a plurality of bosses, the lower mold plate is provided with a plurality of positioning grooves, and the bosses protrude into the positioning grooves.

[0015] The beneficial effects of the utility model are as follows: by setting an upper mold cavity composed of an upper cavity and an upper outer ring cavity, and a lower mold cavity composed of a lower cavity and a lower outer ring cavity, two adjacent lower outer ring cavities are connected by a channel, thereby realizing a structure in which the entire burr cavity is connected, thereby achieving the purpose of separating the entire burr from all workpieces after molding and demolding, that is, achieving the purpose of deburring in the mold and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the upper template structure of the utility model;

[0019] Figure 4 for Figure 3 A partial enlarged view of part A;

[0020] Figure 5 This is a schematic diagram of the middle template structure of the utility model;

[0021] Figure 6 for Figure 5 A partial enlarged view of part B;

[0022] Figure 7 It is a three-dimensional cross-sectional view of the middle template of the utility model;

[0023] Figure 8 It is a three-dimensional diagram of the lower template of the utility model;

[0024] Fig. 9 for Figure 8 A partial enlarged view of part C in the middle;

[0025] Fig.10 This is a schematic diagram of the assembly state of the middle template and the lower template of the utility model;

[0026] Fig.11 for Fig.10 A partial enlarged view of part D in the middle;

[0027] Fig.12 It is a planar cross-sectional view of the utility model;

[0028] Fig.13 for Fig.12 A partial enlarged view of part E in the middle.

[0029] Reference numerals include:

[0030] 1—upper mold plate 10—parting surface 11—upper mold cavity

[0031] 111—upper cavity 112—upper outer ring cavity 2—middle template

[0032] 20—long hole 21—molding part 22—lower convex part

[0033] 3—lower mold plate 30—lower parting surface 31—lower mold cavity

[0034] 311—lower cavity 312—lower outer ring cavity 32—channel

[0035] 33—limiting groove 4—base 100—workpiece. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0037] See also Figures 1 to 13 The utility model discloses a mold for convenient in-mold burr removal, comprising an upper mold plate 1, a middle mold plate 2 and a lower mold plate 3;

[0038] The upper mold plate 1 has a plurality of upper mold cavities 11, and two adjacent upper mold cavities 11 are arranged at a distance, and each upper mold cavity 11 includes an upper cavity body 111 and an upper outer ring cavity 112, and the upper outer ring cavity 112 is arranged around the upper cavity body 111;

[0039] The middle template 2 is provided with a long hole 20 and a plurality of forming parts 21, the long hole 20 penetrates the middle template 2 along the thickness direction of the middle template 2, and two adjacent forming parts 21 are arranged at a distance;

[0040] The lower mold plate 3 is provided with a plurality of lower mold cavities 31 and a plurality of channels 32. Two adjacent lower mold cavities 31 are arranged at a distance. Two adjacent lower outer ring cavities 312 are connected through the channel 32. Each lower mold cavity 31 includes a lower cavity body 311 and a lower outer ring cavity 312. The lower outer ring cavity 312 is arranged around the lower cavity body 311.

[0041] After the upper template 1, the middle template 2 and the lower template 3 are molded together, the molding part 21 penetrates into the upper cavity 111 and the lower cavity 311 to form a molding cavity, and the upper outer ring cavity 112 and the lower outer ring cavity 312 form a burr cavity.

[0042] Specifically, in this embodiment, multiple groups of upper molding areas are processed on the upper template 1, and each group of upper molding areas is spaced apart, and each group of upper molding areas is provided with multiple upper mold cavities 11, and the spacing between two adjacent upper mold cavities 11 is set, and each upper mold cavity 11 includes an upper cavity 111 and an upper outer ring cavity 112, that is, a sunken surface is processed around the periphery of the upper cavity 111 to form an upper outer ring cavity 112, and multiple groups of lower molding areas are processed on the lower template 3, and each group of lower molding areas is spaced apart, and each group of lower molding areas is provided with multiple lower mold cavities 31, and the spacing between two adjacent lower mold cavities 31 is set, and each lower mold cavity 31 includes a lower cavity 311 and a lower outer ring cavity 312, that is, a sunken surface is processed around the periphery of the lower cavity 311 to form a lower outer ring cavity 312, and two adjacent lower outer ring cavities 312 are connected through a channel 32, and multiple groups of In the middle forming area, each group of middle forming areas includes a long hole 20 and a plurality of forming parts 21, and the plurality of forming parts 21 are distributed on the left and right sides of the long hole 20. After the upper template 1, the middle template 2 and the lower template 3 are molded together, an upper mold cavity 11, a forming part 21, and a lower mold cavity 31 are molded together, wherein the forming part 21 extends into the molding space surrounded by the upper cavity 111 and the lower cavity 311 to form a molding cavity, and the upper outer ring cavity 112 and the lower outer ring cavity 312 are surrounded by a burr cavity. Under the action of the channel 32, a plurality of burr cavities are connected. After demolding, the upper template 1 and the middle template 2 are separated, and the burrs of all the workpieces after molding are in a whole piece connected form. The burrs are manually torn from one side, that is, the whole piece of burrs is separated from a plurality of workpieces, so as to achieve the purpose of one-time in-mold burr removal.

[0043] By setting an upper mold cavity 11 composed of an upper cavity 111 and an upper outer ring cavity 112, and a lower mold cavity 31 composed of a lower cavity 311 and a lower outer ring cavity 312, two adjacent lower outer ring cavities 312 are connected by a channel 32, thereby realizing a structure in which the entire burr cavity is connected, thereby achieving the purpose of separating the entire burr from all workpieces after molding and demolding, that is, achieving the purpose of deburring in the mold and improving production efficiency.

[0044] The upper mold plate 1 is also provided with an upper parting surface 10, the lower mold plate 3 is provided with a lower parting surface 30, the channel 32 is recessed in the lower parting surface 30, and the central axis of the upper parting surface 10 of the plurality of upper mold cavities 11 is symmetrically arranged, and the central axis of the lower parting surface 30 of the plurality of lower mold cavities 31 is symmetrically arranged.

[0045] The upper parting surface 10 and the lower parting surface 30 are arranged with a gap.

[0046] A plurality of upper mold cavities 11 are distributed on the left and right sides of the upper parting surface 10, and a plurality of lower mold cavities 31 are distributed on the left and right sides of the lower parting surface 30. After the upper mold plate 1, the middle mold plate 2 and the lower mold plate 3 are molded together, a gap is set between the lower parting surface 30 and the upper parting surface 10. Under the action of the channel 32, the gap is filled with molten glue, further combining the burrs of all workpieces together, and further improving the efficiency of removing burrs.

[0047] The plurality of upper mold cavities 11 are symmetrically arranged above the central axis of the parting surface 10 .

[0048] The elongated hole 20 is arranged along the length direction of the middle template 2, and a plurality of forming parts 21 are symmetrically arranged about the central axis of the elongated hole 20, so as to facilitate processing, increase the number of workpieces formed, and reduce production costs.

[0049] The lower template 3 is provided with a plurality of limiting grooves 33, one of the limiting grooves 33 is located between two adjacent lower mold cavities 31, and the middle template 2 is provided with a plurality of lower protrusions 22, one lower protrusion 22 is embedded in one of the limiting grooves 33, so as to improve the connection firmness between the lower template 3 and the middle template 2.

[0050] The mold that is convenient for in-mold burr removal also includes a base 4, the base 4 is provided with a plurality of bosses, the lower template 3 is provided with a plurality of positioning grooves, the bosses protrude into the positioning grooves, and the arrangement of the positioning grooves makes the overall thickness of the lower template 3 roughly consistent, which facilitates the processing and heat treatment of the lower template 3 and improves the stability of the quality during the processing.

[0051] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A mold that is convenient for in-mold burr removal, characterized in that: It comprises an upper template (1), a middle template (2) and a lower template (3); The upper mold plate (1) is provided with a plurality of upper mold cavities (11), and two adjacent upper mold cavities (11) are arranged at a distance, and each upper mold cavity (11) comprises an upper cavity body (111) and an upper outer ring cavity (112), and the upper outer ring cavity (112) is arranged around the upper cavity body (111); The middle template (2) is provided with a long hole (20) and a plurality of forming parts (21), wherein the long hole (20) penetrates the middle template (2) along the thickness direction of the middle template (2), and two adjacent forming parts (21) are arranged at a distance; The lower mold plate (3) is provided with a plurality of lower mold cavities (31) and a plurality of channels (32), and two adjacent lower mold cavities (31) are arranged at a distance, and each of the lower mold cavities (31) comprises a lower cavity body (311) and a lower outer ring cavity (312), and the lower outer ring cavity (312) is arranged around the lower cavity body (311), and two adjacent lower outer ring cavities (312) are connected through the channel (32); After the upper mold plate (1), the middle mold plate (2) and the lower mold plate (3) are molded together, the molding portion (21) penetrates into the space between the upper cavity (111) and the lower cavity (311) to form a molding cavity, and the upper outer ring cavity (112), the lower outer ring cavity (312) and the channel (32) form a burr cavity.

2. The mold for in-mold burr removal according to claim 1, characterized in that: The upper mold plate (1) is also provided with an upper parting surface (10), the lower mold plate (3) is provided with a lower parting surface (30), the channel (32) is recessed in the lower parting surface (30), a plurality of the upper mold cavities (11) are symmetrically arranged with respect to the central axis of the parting surface (10) above, and a plurality of the lower mold cavities (31) are symmetrically arranged with respect to the central axis of the parting surface (30) below.

3. The mold for in-mold burr removal according to claim 2, characterized in that: The upper parting surface (10) and the lower parting surface (30) are provided with a gap.

4. The mold for in-mold burr removal according to claim 1, characterized in that: The elongated hole (20) is arranged along the length direction of the middle template (2), and a plurality of forming portions (21) are arranged symmetrically with respect to the central axis of the elongated hole (20).

5. The mold for in-mold deburring according to claim 1, characterized in that: The lower mold plate (3) is provided with a plurality of limiting grooves (33), one of the limiting grooves (33) being located between two adjacent lower mold cavities (31); the middle mold plate (2) is provided with a plurality of lower convex portions (22), one of the lower convex portions (22) being embedded in one of the limiting grooves (33).

6. The mold for in-mold burr removal according to claim 1, characterized in that: The mold for facilitating in-mold burr removal also includes a base (4), the base (4) is provided with a plurality of bosses, the lower mold plate (3) is provided in a plurality of positioning grooves, and the bosses protrude into the positioning grooves.

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