Cold pushboard mold

Abstract

The utility model discloses a cold push board material mould, including mould body, be equipped with the feed channel, clothes rack type runner and forming channel that arrange in sequence in the mould body, the import end of clothes rack type runner communicates with the feed channel, the export end of clothes rack type runner communicates with the forming channel, the cross section size of export end of clothes rack type runner is less than the cross section size of forming channel to form the step face of setting towards the forming channel between export end of clothes rack type runner and the forming channel. The utility model can improve the surface finish of board product, can make board product surface more smooth and bright.

Description

Technical Field

[0001] This utility model relates to a mold for cold-pushing sheet metal. Background Technology

[0002] Currently, sheet metal molds are commonly used forming tools in the production of sheet metal products. For example, Chinese patent CN219486509U discloses a cold push-extrusion sheet metal mold. The sheet metal mold needs to be installed on an extruder. The extruder melts the material and forces it into the mold to form the sheet metal product. The product moves forward under the traction of a damping traction machine and is shaped by a tempering and setting table and cut by a cross-cutting machine to obtain the finished sheet metal. However, in actual production, it has been found that some sheet metal products produced by these molds have rough and uneven surfaces, seriously affecting their aesthetics. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a cold push plate mold that can improve the surface finish of plate products and make the surface of plate products smoother and shinier.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a cold-push plate mold, including a mold body;

[0005] The mold body is provided with a feeding channel, a coat hanger-type flow channel and a forming channel arranged in sequence;

[0006] The inlet end of the hanger-type flow channel is connected to the feeding channel;

[0007] The outlet end of the hanger-type flow channel is connected to the forming channel;

[0008] The cross-sectional dimension of the outlet end of the coat hanger-type flow channel is smaller than the cross-sectional dimension of the molding channel, thereby forming a stepped surface facing the molding channel between the outlet end of the coat hanger-type flow channel and the molding channel.

[0009] Furthermore, the width of the stepped surface is 60~100mm.

[0010] Furthermore, the forming channel includes a straight section and a tapered section arranged sequentially along the flow direction of the material;

[0011] The cross-sectional dimensions of the conical section gradually increase along the flow direction of the material;

[0012] One end of the straight section is connected to the outlet end of the coat hanger-type flow channel, and the other end of the straight section is connected to the end of the tapered section with the smaller cross-sectional dimension.

[0013] The cross-sectional dimension of the outlet end of the coat hanger-type flow channel is smaller than the cross-sectional dimension of the straight extension section, and the stepped surface is disposed between the outlet end of the coat hanger-type flow channel and the straight extension section and is oriented towards the straight extension section.

[0014] Further, a specific structure of the mold body is provided, the mold body including a feeding part, a connecting part and a forming part arranged in sequence, the feeding part being connected to one end of the connecting part, the other end of the connecting part being connected to the forming part, the feeding channel being disposed in the feeding part, the coat hanger-type flow channel being disposed in the connecting part, and the forming channel being disposed in the forming part.

[0015] Furthermore, a heating rod is installed in the connecting part.

[0016] Furthermore, the molding section is provided with cooling channels through which cooling water flows.

[0017] Further, a specific structure of the forming part is provided, the forming part including an upper template, a lower template, a left side plate and a right side plate;

[0018] One end of the upper template and one end of the lower template are respectively connected to the connecting part, and the forming channel is disposed between the upper template and the lower template;

[0019] The left side plate is connected between the left end of the upper template and the left end of the lower template, the right side plate is connected between the right end of the upper template and the right end of the lower template, and the forming channel is also located between the left side plate and the right side plate.

[0020] Furthermore, the upper template includes an upper main body plate and an upper middle plate, and the lower template includes a lower main body plate and a lower middle plate;

[0021] One end of the upper main body plate is connected to the connecting part;

[0022] One end of the lower main body plate is connected to the connecting part;

[0023] The upper middle plate is connected to one end of the upper main plate near the connecting part;

[0024] The lower middle plate is connected to one end of the lower main body plate near the connecting part;

[0025] A portion of the forming channel is located between the upper middle plate and the lower middle plate, and another portion of the forming channel is located between the upper main plate and the lower main plate;

[0026] A portion of the left side panel and a portion of the right side panel are both located between the upper middle panel and the lower middle panel, and another portion of the left side panel and another portion of the right side panel are both located between the upper main panel and the lower main panel;

[0027] The upper middle plate and the lower middle plate are respectively provided with Teflon layers on the surface facing the molding channel.

[0028] Furthermore, the upper main body plate is provided with an upper boss that abuts against the connecting part, and the lower main body plate is provided with a lower boss that abuts against the connecting part;

[0029] The upper middle plate, the lower middle plate, the left side plate, and the right side plate are each provided with a protruding edge that abuts against the connecting part.

[0030] Using the above technical solution, the molten material in the extruder is forced into the feed channel, then flows into the coat hanger-type flow channel and evenly fills it. The material then flows from the coat hanger-type flow channel into the forming channel, where it cools and solidifies to obtain the sheet product. Through actual debugging and verification, by making the cross-sectional dimension of the outlet end of the coat hanger-type flow channel slightly smaller than that of the forming channel, a stepped surface facing the forming channel is created. This allows the material to slightly turn over and form a skin when entering the forming channel from the coat hanger-type flow channel, thereby improving the surface finish of the obtained sheet product and making its surface smoother and brighter. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the cold-push plate mold of this utility model. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the cold-push plate mold of this utility model. Figure 2 ;

[0033] Figure 3 This is a top view of the cold-push plate mold of this utility model;

[0034] Figure 4 for Figure 3 AA section view;

[0035] Figure 5 for Figure 4 BB section view;

[0036] Figure 6 for Figure 4 Detailed view of section C in the middle;

[0037] Figure 7 for Figure 5 Detailed view of part D in the middle;

[0038] In the diagram: 1. Feeding channel; 2. Hanger-type flow channel; 3. Forming channel; 4. Stepped surface; 5. Straight section; 6. Conical section; 7. Feeding part; 8. Connecting part; 9. Forming part; 10. Heating rod; 11. Cooling flow channel; 12. Upper template; 13. Lower template; 14. Left side plate; 15. Right side plate; 16. Upper main body plate; 17. Upper middle plate; 18. Lower main body plate; 19. Lower middle plate; 20. Upper boss; 21. Lower boss; 22. Protruding edge. Detailed Implementation

[0039] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0040] like Figures 1-7 As shown, a cold-push plate mold includes a mold body;

[0041] The mold body is provided with a feeding channel 1, a coat hanger-type flow channel 2 and a forming channel 3 arranged in sequence;

[0042] The inlet end of the coat hanger-type flow channel 2 is connected to the feed channel 1;

[0043] The outlet end of the hanger-type flow channel 2 is connected to the forming channel 3;

[0044] The cross-sectional dimension of the outlet end of the coat hanger-type flow channel 2 is smaller than that of the forming channel 3, thus forming a stepped surface 4 facing the forming channel 3 between the outlet end of the coat hanger-type flow channel 2 and the forming channel 3. Specifically, the molten material in the extruder is extruded into the feed channel 1, and then the material in the feed channel 1 flows into the coat hanger-type flow channel 2 and evenly fills the coat hanger-type flow channel 2. Then the material flows from the coat hanger-type flow channel 2 into the forming channel 3 and is cooled and shaped in the forming channel 3 to obtain the sheet product. After actual debugging and verification, by making the cross-sectional dimension of the outlet end of the coat hanger-type flow channel 2 slightly smaller than that of the forming channel 3, a stepped surface 4 facing the forming channel 3 is generated. This allows the material to turn over and form a skin when entering the forming channel 3 from the coat hanger-type flow channel 2, thereby improving the surface smoothness of the obtained sheet product and making the surface of the sheet product smoother and shinier. The cross-sectional dimensions of the hanger-type flow channel 2 gradually increase from the inlet end to the outlet end. The specific structure of the hanger-type flow channel 2 is existing technology well known to those skilled in the art, and will not be described in detail in this embodiment.

[0045] Specifically, the width of the step surface 4 can be 60~100mm.

[0046] like Figure 4, 5 As shown, the forming channel 3 may include a straight section 5 and a tapered section 6 arranged sequentially along the flow direction of the material;

[0047] The cross-sectional dimensions of the conical segment 6 gradually increase along the flow direction of the material;

[0048] One end of the straight section 5 is connected to the outlet end of the coat hanger-type flow channel 2, and the other end of the straight section 5 is connected to the end of the tapered section 6 with the smaller cross-sectional dimension.

[0049] The cross-sectional dimension of the outlet end of the coat hanger-type flow channel 2 is smaller than that of the straight section 5. The stepped surface 4 is located between the outlet end of the coat hanger-type flow channel 2 and the straight section 5 and faces the straight section 5. Specifically, the cross-sectional dimension of the straight section 5 remains constant along the material flow direction. The material flows from the feed channel 1 into the coat hanger-type flow channel 2, then into the straight section 5, and finally into the conical section 6. The purpose of the conical section 6 is to reduce the discharge resistance of the sheet material, thereby preventing die bulging and avoiding pressure instability of the extruder main unit, which is beneficial to increasing the output of sheet material.

[0050] like Figures 1-7 As shown, the mold body may include a feeding part 7, a connecting part 8 and a forming part 9 arranged in sequence. The feeding part 7 is connected to one end of the connecting part 8, and the other end of the connecting part 8 is connected to the forming part 9. The feeding channel 1 is provided in the feeding part 7, the coat hanger-type flow channel 2 is provided in the connecting part 8, and the forming channel 3 is provided in the forming part 9.

[0051] like Figure 1 , 2 As shown in Figures 4 and 6, a heating rod 10 is installed in the connecting part 8. The heating rod 10 can heat the material in the coat hanger-type flow channel 2 to prevent the material from solidifying in the coat hanger-type flow channel 2. The forming part 9 is provided with a cooling flow channel 11 for cooling water to flow through. Passing cooling water into the cooling flow channel 11 can quickly cool and solidify the sheet material in the forming channel 3.

[0052] like Figures 1-7 As shown, the forming part 9 may include an upper template 12, a lower template 13, a left side plate 14, and a right side plate 15;

[0053] One end of the upper template 12 and one end of the lower template 13 are respectively connected to the connecting part 8, and the forming channel 3 is disposed between the upper template 12 and the lower template 13;

[0054] The left side plate 14 is connected between the left end of the upper template 12 and the left end of the lower template 13, and the right side plate 15 is connected between the right end of the upper template 12 and the right end of the lower template 13. The forming channel 3 is also located between the left side plate 14 and the right side plate 15.

[0055] like Figures 1-7 As shown, the upper template 12 may include an upper main plate 16 and an upper middle plate 17, and the lower template 13 may include a lower main plate 18 and a lower middle plate 19.

[0056] One end of the upper main body plate 16 is connected to the connecting part 8;

[0057] One end of the lower main body plate 18 is connected to the connecting part 8;

[0058] The upper middle plate 17 is connected to one end of the upper main body plate 16 near the connecting part 8;

[0059] The lower middle plate 19 is connected to one end of the lower main body plate 18 near the connecting part 8;

[0060] A portion of the forming channel 3 is located between the upper middle plate 17 and the lower middle plate 19, and another portion of the forming channel 3 is located between the upper main plate 16 and the lower main plate 18;

[0061] A portion of the left side plate 14 and a portion of the right side plate 15 are located between the upper middle plate 17 and the lower middle plate 19, and another portion of the left side plate 14 and another portion of the right side plate 15 are located between the upper main plate 16 and the lower main plate 18.

[0062] The upper middle plate 17 and the lower middle plate 19 are respectively provided with Teflon layers on their surfaces facing the molding channel 3. Specifically, the Teflon layers have the advantages of being smooth and non-stick, which helps to make the surface of the product brighter and more beautiful. In this embodiment, the cooling channel 11 is provided on the upper middle plate 17, the lower middle plate 19, the upper main plate 16, and the lower main plate 18 in the molding part 9.

[0063] like Figures 1-7 As shown, the upper main body plate 16 is provided with an upper protrusion 20 that abuts against the connecting part 8, and the lower main body plate 18 is provided with a lower protrusion 21 that abuts against the connecting part 8.

[0064] The upper middle plate 17, the lower middle plate 19, the left side plate 14, and the right side plate 15 are each provided with a protruding edge 22 that abuts against the connecting part 8. Specifically, the upper main body plate 16 and the lower main body plate 18 can be locked to the connecting part 8 by fasteners. The upper protrusion 20 can reduce the contact area between the upper main body plate 16 and the connecting part 8, thereby reducing heat transfer between the upper main body plate 16 and the connecting part 8. The lower protrusion 21 can reduce the contact area between the lower main body plate 18 and the connecting part 8, thereby reducing heat transfer between the lower main body plate 18 and the connecting part 8. The protruding edge 22 on the left side plate 14... The contact area between the left side plate 14 and the connecting part 8 can be reduced, thereby reducing heat transfer between the left side plate 14 and the connecting part 8. The protruding edge 22 on the right side plate 15 can reduce the contact area between the right side plate 15 and the connecting part 8, thereby reducing heat transfer between the right side plate 15 and the connecting part 8. The protruding edge 22 on the upper middle plate 17 can reduce the contact area between the upper middle plate 17 and the connecting part 8, thereby reducing heat transfer between the upper middle plate 17 and the connecting part 8. The protruding edge 22 on the lower middle plate 19 can reduce the contact area between the lower middle plate 19 and the connecting part 8, thereby reducing heat transfer between the lower middle plate 19 and the connecting part 8.

[0065] In summary, the molten material in the extruder is forced into the feed channel 1, then flows into the coat hanger-type flow channel 2 and evenly fills it. The material then flows from the coat hanger-type flow channel 2 into the forming channel 3, where it cools and solidifies to obtain the sheet material. Through actual debugging and verification, by making the cross-sectional dimension of the outlet end of the coat hanger-type flow channel 2 slightly smaller than the cross-sectional dimension of the forming channel 3, a stepped surface 4 facing the forming channel 3 is created. This allows the material to slightly turn over and form a skin when entering the forming channel 3 from the coat hanger-type flow channel 2, thereby improving the surface finish of the obtained sheet material and making the surface of the sheet material smoother and brighter.

[0066] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cold-push sheet metal mold, characterized in that, Including the mold body; The mold body is provided with a feeding channel (1), a coat hanger-type flow channel (2) and a forming channel (3) arranged in sequence. The inlet end of the hanger-type flow channel (2) is connected to the feed channel (1); The outlet end of the hanger-type flow channel (2) is connected to the forming channel (3); The cross-sectional dimension of the outlet end of the hanger-type flow channel (2) is smaller than that of the cross-sectional dimension of the forming channel (3), thereby forming a stepped surface (4) facing the forming channel (3) between the outlet end of the hanger-type flow channel (2) and the forming channel (3).

2. The cold-push plate mold according to claim 1, characterized in that, The width of the stepped surface (4) is 60~100mm.

3. The cold-push plate mold according to claim 1, characterized in that, The forming channel (3) includes a straight section (5) and a conical section (6) arranged sequentially along the flow direction of the material. The cross-sectional dimensions of the conical segment (6) gradually increase along the flow direction of the material; One end of the straight section (5) is connected to the outlet end of the coat hanger-type flow channel (2), and the other end of the straight section (5) is connected to the end of the tapered section (6) with the smaller cross-sectional dimension. The cross-sectional dimension of the outlet end of the hanger-type flow channel (2) is smaller than the cross-sectional dimension of the straight extension section (5). The stepped surface (4) is located between the outlet end of the hanger-type flow channel (2) and the straight extension section (5) and is oriented towards the straight extension section (5).

4. The cold-push plate mold according to claim 1, characterized in that, The mold body includes a feeding part (7), a connecting part (8) and a forming part (9) arranged in sequence. The feeding part (7) is connected to one end of the connecting part (8), and the other end of the connecting part (8) is connected to the forming part (9). The feeding channel (1) is located in the feeding part (7), the coat hanger-type flow channel (2) is located in the connecting part (8), and the forming channel (3) is located in the forming part (9).

5. The cold-push plate mold according to claim 4, characterized in that, A heating rod (10) is installed in the connecting part (8).

6. The cold-push plate mold according to claim 4, characterized in that, The molding part (9) is provided with a cooling channel (11) through which cooling water flows.

7. The cold-push plate mold according to claim 4, characterized in that, The forming part (9) includes an upper template (12), a lower template (13), a left side plate (14), and a right side plate (15). One end of the upper template (12) and one end of the lower template (13) are respectively connected to the connecting part (8), and the forming channel (3) is provided between the upper template (12) and the lower template (13); The left side plate (14) is connected between the left end of the upper template (12) and the left end of the lower template (13), the right side plate (15) is connected between the right end of the upper template (12) and the right end of the lower template (13), and the forming channel (3) is also located between the left side plate (14) and the right side plate (15).

8. The cold-push plate mold according to claim 7, characterized in that, The upper template (12) includes an upper main plate (16) and an upper middle plate (17), and the lower template (13) includes a lower main plate (18) and a lower middle plate (19). One end of the upper main body plate (16) is connected to the connecting part (8); One end of the lower main body plate (18) is connected to the connecting part (8); The upper middle plate (17) is connected to one end of the upper main plate (16) near the connecting part (8); The lower middle plate (19) is connected to one end of the lower main body plate (18) near the connecting part (8); A portion of the forming channel (3) is located between the upper middle plate (17) and the lower middle plate (19), and another portion of the forming channel (3) is located between the upper main plate (16) and the lower main plate (18). A portion of the left side plate (14) and a portion of the right side plate (15) are located between the upper middle plate (17) and the lower middle plate (19), and another portion of the left side plate (14) and another portion of the right side plate (15) are located between the upper main plate (16) and the lower main plate (18). The upper middle plate (17) and the lower middle plate (19) are respectively provided with Teflon layers on the surface facing the molding channel (3).

9. The cold-push plate mold according to claim 8, characterized in that, The upper main plate (16) is provided with an upper boss (20) that abuts against the connecting part (8), and the lower main plate (18) is provided with a lower boss (21) that abuts against the connecting part (8). The upper middle plate (17), the lower middle plate (19), the left side plate (14) and the right side plate (15) are respectively provided with protruding edges (22) that abut against the connecting part (8).

Images