Mold demolding device and demolding method for extruding machine

Abstract

The invention discloses a mold demolding device for an extruding machine and a demolding method, and belongs to the technical field of mold loading and unloading in factory extrusion production. The technical problem that the production efficiency is low due to the fact that a mold is manually ejected out of a supporting structure when the mold is demolded in the process of replacing the extrusion mold is solved, the two directional sliding rails are installed on the top face of the operation table in parallel, and the production efficiency is high. The part moving platform is installed on the top face of the operation table in a sliding mode through the two directional sliding rails, the external reverse extrusion die supporting structure is placed on the part moving platform, the die locking structure is installed on the outer sides of the two directional sliding rails, and through holes are formed in the top face of the operation table and the part moving platform. The hydraulic machine installation platform is installed on the bottom face of the operation table, and the top face of the hydraulic machine telescopically penetrates through through holes formed in the top face of the operation table and the part moving platform. The device is reliable in structure, and the method is simple in operation process. The device is used for demolding the mold.

Description

Technical Field

[0001] The invention relates to a demoulding device and a demoulding method for a die used in an extruder, and belongs to the technical field of die assembly and disassembly in factory extrusion production. Background Art

[0002] The production process of aluminum profiles and bars mainly includes processes such as melting, extrusion, finishing, quality inspection and packaging. Among them, melting is the first step in aluminum processing and production. It is to heat the pure aluminum ingot to the melting point and then melt it, add other alloy elements, and mix it into different series of alloy molten metal liquid. The rough material for aluminum processing is formed by pouring, and then the next step is carried out according to the process. The second step is usually the extrusion process. The aluminum alloy rough material is extruded under the heating state. After the extrusion process, the next step of finishing is carried out according to the production process. The finishing process includes heat treatment and straightening of profiles and bars. Finally, packaging is carried out after passing the inspection. In the extrusion process, when producing profiles of different shapes or bars of different sizes, the process of replacing the extrusion mold is involved. However, the existing technology has the following problems when demolding:

[0003] In the existing technology, most of the demoulding is done manually, using a machine to lift the mold out of the extruder, and then using manpower and tools to push the mold out of the supporting structure. The entire demoulding process is time-consuming, which has a certain impact on production efficiency, and cannot achieve rapid continuous production, greatly reducing production efficiency.

[0004] In summary, when demolding the die during the process of replacing the extrusion die, the die is ejected from the supporting structure manually, resulting in a technical problem of low production efficiency. Summary of the invention

[0005] The present invention aims to solve the technical problem of low production efficiency caused by manually ejecting the mold from the supporting structure during mold demoulding in the process of replacing the extrusion mold, and further provides a mold demoulding device and demoulding method for an extruder.

[0006] The technical solution of the present invention is a die demoulding device for an extruder, which comprises an operating table, a hydraulic press, a hydraulic press mounting platform, a directional slide rail, a die locking structure and a parts moving platform;

[0007] Two directional slide rails are installed in parallel on the top surface of the operating table, and the part moving platform is slidably installed on the top surface of the operating table through the two directional slide rails. The external anti-extrusion die support structure is placed on the part moving platform, and the mold locking structure is installed on the outside of the two directional slide rails. The anti-extrusion die support structure is locked by the mold locking structure. Through holes are provided on the top surface of the operating table and the part moving platform. The hydraulic press mounting platform is installed on the bottom surface of the operating table. The hydraulic press is installed on the bottom surface of the operating table through the hydraulic press mounting platform. The top surface of the hydraulic press can be telescopically passed through the through holes provided on the top surface of the operating table and the part moving platform, thereby realizing the lifting of the mold inside the anti-extrusion die support structure.

[0008] As another improvement of the present invention, the hydraulic press includes an upper platform, a push rod, a hydraulic base and screw holes. The upper platform is connected to the hydraulic base through the push rod, and the hydraulic base is installed on the hydraulic press mounting platform through the screw holes. The top surface height dimension of the external anti-extrusion die support structure is smaller than the upward stroke dimension of the top surface of the upper platform.

[0009] As another improvement of the present invention, the directional slide rail includes rolling bearings and positioning bolts, and multiple positioning bolts are evenly fixed inside the directional slide rail. Multiple positioning bolts are equipped with rolling bearings. The part moving platform is nested inside the directional slide rail, and sliding along the direction of the directional slide rail is achieved through the rolling bearings.

[0010] As another improvement of the present invention, an I-shaped sliding block is installed on the bottom surface of the part moving platform, and the part moving platform is nested into the interior of the directional slide rail through two of the I-shaped sliding blocks.

[0011] As another improvement of the present invention, an arc surface is provided on the inner side of the mold locking structure, and the angle of the arc surface matches the chamfers on both sides of the back-extrusion die support structure. The arc surface of the mold locking structure contacts the chamfers on both sides of the back-extrusion die support structure, thereby locking the back-extrusion die support structure in the vertical direction.

[0012] As another improvement of the present invention, it also includes a cooling water pipe, one end of which is rotatably mounted on the top surface of the operating table along a horizontal circumferential direction. One end of the cooling water pipe is used for water inlet, and the other end of the cooling water pipe is used for water outlet, so as to cool the mold.

[0013] As another improvement of the present invention, the through hole formed on the top surface of the operating table has the same size as the through hole formed on the part moving platform.

[0014] The present invention also provides a demoulding method, comprising the following steps:

[0015] S1. Use the overhead crane to lift the reverse extrusion die support structure onto the parts moving platform;

[0016] S2, push the parts moving platform to the specified position, and lock the back extrusion die support component through the mold locking structure;

[0017] S3, the top surface of the hydraulic press moves upward to eject the mold from the inside of the reverse extrusion die support structure;

[0018] S4. Transfer the mold to the designated location via an overhead crane.

[0019] Beneficial effects of the present invention:

[0020] 1. During use, the reverse extrusion die support structure is hoisted onto the mobile platform by the overhead crane, and the two sides are aligned with the platform boundaries to ensure that the center circle of the reverse extrusion die support knot is concentric with the center circle of the platform, and the chamfers on both sides of the reverse extrusion die support structure correspond to the direction of the locking structure; the platform is pushed to move to the specified position, the locking structure is combined with the reverse extrusion die support knot component, the hydraulic press is controlled to work, the upper platform moves upward through the upper platform, the hydraulic press upward stroke exceeds the reverse extrusion die support knot component, and the mold is ejected from the reverse extrusion die support knot component; the hydraulic press is controlled to move downward and return, exit the mobile platform, and the parts are hoisted and transferred by the overhead crane. Improve demoulding efficiency.

[0021] 2. Cool down the mold by setting a rotatable cooling water pipe to improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the overall structure of a die demoulding device for an extruder according to the present invention.

[0023] Figure 2 It is a structural diagram of a hydraulic press.

[0024] Figure 3 This is a structural diagram of the directional slide rail. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the examples of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be explained that the positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are only based on the positional relationships of the orientations shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the referred components have specific orientations, are constructed and operated in specific orientations, and therefore cannot be understood as limitations on the present invention.

[0026] Specific implementation method 1: Combination Figures 1 to 3The present embodiment is described. The present embodiment is a die demoulding device for an extruder, comprising an operating table 1, a hydraulic press 3, a hydraulic press mounting platform 4, a directional slide rail 5, a die locking structure 6 and a parts moving platform 7;

[0027] The two directional slide rails 5 are installed in parallel on the top surface of the operating table 1, and the part moving platform 7 is slidably installed on the top surface of the operating table 1 through the two directional slide rails 5. The external anti-extrusion die support structure is placed on the part moving platform 7, and the mold locking structure 6 is installed on the outside of the two directional slide rails 5. The anti-extrusion die support structure is locked by the mold locking structure 6. Through holes are opened on the top surface of the operating table 1 and the part moving platform 7. The hydraulic press mounting platform 4 is installed on the bottom surface of the operating table 1. The hydraulic press 3 is installed on the bottom surface of the operating table 1 through the hydraulic press mounting platform 4. The top surface of the hydraulic press 3 can be telescopically passed through the through holes opened on the top surface of the operating table 1 and the part moving platform 7, thereby realizing the jacking of the mold inside the anti-extrusion die support structure.

[0028] During use, the reverse extrusion die support structure is hoisted onto the mobile platform by the overhead crane, and the two sides are aligned with the platform boundaries to ensure that the center circle of the reverse extrusion die support knot is concentric with the center circle of the platform, and the chamfers on both sides of the reverse extrusion die support structure correspond to the direction of the locking structure; the platform is pushed to move to the specified position, the locking structure is combined with the reverse extrusion die support knot component, the hydraulic press is controlled to work, the upper platform moves upward through the upper platform, the hydraulic press upward stroke exceeds the reverse extrusion die support knot component, and the mold is ejected from the reverse extrusion die support knot component; the hydraulic press is controlled to move downward and return, exit the mobile platform, and the parts are hoisted and transferred using the overhead crane. Improve demoulding efficiency.

[0029] Specific implementation method 2: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the hydraulic press 3 includes an upper platform 301, a push rod 302, a hydraulic base 303 and a screw hole 304. The upper platform 301 is connected to the hydraulic base 303 through the push rod 302. The hydraulic base 303 is installed on the hydraulic press installation platform 4 through the screw hole 304. The top surface height dimension of the external reverse extrusion die support structure is smaller than the upward stroke dimension of the top surface of the upper platform 301. The upper platform stroke exceeds the reverse extrusion die support structure, and the mold is ejected from the reverse extrusion die support structure. Other components and connection methods are the same as those of the first embodiment.

[0030] Specific implementation method three: Combination Figures 1 to 3This embodiment is described. The difference between this embodiment and the specific embodiment 1 is that the directional slide rail 5 includes a rolling bearing 501 and a positioning bolt 502. A plurality of the positioning bolts 502 are evenly fixed inside the directional slide rail 5. A plurality of the positioning bolts 502 are mounted with rolling bearings 501. The part moving platform 7 is nested inside the directional slide rail 5 and slides along the directional slide rail 5 through the rolling bearings 501. Such a design structure is stable and reliable, and the reliability of the structure is improved. Other components and connection methods are the same as those of the specific embodiment 1 or 2.

[0031] Specific implementation method four: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that an I-shaped slider is installed on the bottom surface of the part moving platform 7, and the part moving platform 7 is embedded in the directional slide rail 5 through two I-shaped sliders. Such a design structure is stable and reliable, and the reliability of the structure is improved. The other components and connection methods are the same as any one of the first to third embodiments.

[0032] Specific implementation method five: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that a circular arc surface is provided on the inner side of the mold locking structure 6. The angle of the circular arc surface matches the chamfers on both sides of the reverse extrusion die support structure. The circular arc surface of the mold locking structure 6 contacts the chamfers on both sides of the reverse extrusion die support structure to lock the reverse extrusion die support structure in the vertical direction. The other components and connection methods are the same as any one of the first to fourth embodiments.

[0033] Specific implementation method six: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that it also includes a cooling water pipe 2, one end of which is rotatably mounted on the top surface of the operating table 1 along the horizontal circumferential direction. One end of the cooling water pipe 2 is used for water inlet, and the other end of the cooling water pipe 2 is used for water outlet to achieve cooling of the mold. The use of a rotatable method can reduce mutual interference between structural components. Other components and connection methods are the same as any one of the first to fifth embodiments.

[0034] Specific implementation method seven: Combination Figures 1 to 3 This embodiment is described. The difference between this embodiment and the first embodiment is that the through hole on the top surface of the operating table 1 is the same size as the through hole on the part moving platform 7. The purpose of this design is to facilitate processing, so that the top surface of the hydraulic press can pass through the through hole smoothly, and then complete the demoulding work. The other components and connection methods are the same as any one of the first to sixth embodiments.

[0035] Specific implementation method eight: Combination Figures 1 to 3 This embodiment describes a demoulding method, which includes the following steps:

[0036] S1, lifting the reverse extrusion die support structure onto the parts moving platform 7 by means of an overhead crane;

[0037] S2, push the part moving platform 7 to the specified position, and lock the back extrusion die support structure component through the mold locking structure 6;

[0038] S3, the top surface of the hydraulic press 3 moves upward to eject the mold from the inside of the reverse extrusion die support structure;

[0039] S4. Transfer the mold to the designated location via an overhead crane.

[0040] During use, the anti-extrusion die support structure is hoisted onto the mobile platform by the overhead crane, and the two sides are aligned with the platform boundaries to ensure that the center circle of the anti-extrusion die support knot is concentric with the center circle of the platform, and the chamfers on both sides of the anti-extrusion die support structure correspond to the direction of the locking structure; the platform is pushed to move to the specified position, the locking structure is combined with the anti-extrusion die support knot component, the hydraulic press is controlled to work, the upper platform moves upward through the upper platform, the hydraulic press upward stroke exceeds the anti-extrusion die support knot component, and the mold is ejected from the anti-extrusion die support knot component; the hydraulic press is controlled to move downward and return, exit the mobile platform, and the parts are hoisted and transferred by the overhead crane. Improve demoulding efficiency. The steps are simple and the work efficiency is high.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A die demoulding device for an extruder, characterized in that It comprises an operating table (1), a hydraulic press (3), a hydraulic press mounting platform (4), a directional slide rail (5), a mold locking structure (6) and a parts moving platform (7); The part moving platform (7) is slidably mounted on the top surface of the operating table (1) via the two directional slide rails (5); an external reverse extrusion die support structure is placed on the part moving platform (7); a mold locking structure (6) is mounted on the outside of the two directional slide rails (5); the reverse extrusion die support structure is locked via the mold locking structure (6); through holes are provided on the top surface of the operating table (1) and the part moving platform (7); a hydraulic press (3) is mounted on the bottom surface of the operating table (1) via a hydraulic press mounting platform (4); the top surface of the hydraulic press (3) can be telescopically extended through the through holes provided on the top surface of the operating table (1) and the part moving platform (7), thereby realizing lifting of the mold inside the reverse extrusion die support structure.

2. A die demoulding device for an extruder according to claim 1, characterized in that: The hydraulic press (3) comprises an upper platform (301), a push rod (302), a hydraulic base (303) and a screw hole (304); the upper platform (301) is connected to the hydraulic base (303) via the push rod (302); the hydraulic base (303) is mounted on a hydraulic press mounting platform (4) via the screw hole (304); and the top surface height dimension of the external reverse extrusion die support structure is smaller than the upward stroke dimension of the top surface of the upper platform (301).

3. A die demoulding device for an extruder according to claim 1, characterized in that: The directional slide rail (5) comprises a rolling bearing (501) and a positioning bolt (502), a plurality of the positioning bolts (502) are evenly fixed inside the directional slide rail (5), a plurality of the positioning bolts (502) are sleeved with a rolling bearing (501), and the part moving platform (7) is nested inside the directional slide rail (5) and slides along the direction of the directional slide rail (5) through the rolling bearing (501).

4. A die demoulding device for an extruder according to claim 3, characterized in that: An I-shaped sliding block is installed on the bottom surface of the part moving platform (7), and the part moving platform (7) is nested into the interior of the directional slide rail (5) through two of the I-shaped sliding blocks.

5. The die demoulding device for an extruder according to claim 1, characterized in that: The inner side of the mold locking structure (6) is provided with an arc surface, the angle of which matches the chamfers on both sides of the counter-extrusion die support structure. The arc surface of the mold locking structure (6) contacts the chamfers on both sides of the counter-extrusion die support structure, thereby locking the counter-extrusion die support structure in the vertical direction.

6. A die demoulding device for an extruder according to claim 1, characterized in that It also comprises a cooling water pipe (2), one end of which is rotatably mounted on the top surface of the operating table (1) along a horizontal circumferential direction.

7. A die demoulding device for an extruder according to claim 1, characterized in that: The through hole formed on the top surface of the operating table (1) has the same size as the through hole formed on the part moving platform (7).

8. A demoulding method according to claim 1, comprising the following steps: S1, lifting the reverse extrusion die support structure onto the parts moving platform (7) by means of an overhead crane; S2, pushing the part moving platform (7) to a specified position, and locking the back-extrusion die support component through the die locking structure (6); S3, the top surface of the hydraulic press (3) moves upward to eject the mold from the inside of the reverse extrusion die support structure; S4. Transfer the mold to the designated location via an overhead crane.

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