Aluminum profile extrusion die

Abstract

The utility model discloses an aluminum profile extrusion die which comprises a fixed die and a movable die, the lower side wall of the inner side of the fixed die is provided with a plurality of ejection plates used for ejecting workpieces upwards, the ejection plates are flush with the inner side wall of the fixed die, the ejection plates are installed in an empty groove in a telescopic mode, and the empty groove is formed in the fixed die and communicated with an external air pump through an air inlet pipe. A plurality of top plates are arranged, the air pump pumps air into the empty groove through the air inlet pipe to eject the top plates open, the top plates are lifted, when the top plates are lifted, a workpiece can be upwards ejected open, meanwhile, the air can enter the space between the fixed mold and the workpiece, the fixed mold and the workpiece are promoted to be separated, and deformation caused by concentrated stress of the workpiece can be well avoided.

Description

Technical Field

[0001] The utility model relates to an aluminum profile extrusion die, belonging to the field of aluminum profile dies. Background Art

[0002] In order to facilitate demolding of the formed workpiece after the aluminum profile extrusion die performs extrusion molding, a Chinese patent document with publication number CN220278064U discloses an aluminum profile extrusion die, which uses a hydraulic cylinder as a power source to drive the push rod and the top plate to move upward to assist demolding. However, it adopts a direct extrusion and tightening method during demolding, and the force points are relatively concentrated, which can easily cause deformation of the workpiece. In order to solve the above problems, the utility model provides an aluminum profile extrusion die. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides an aluminum profile extrusion die, which is provided with multiple top plates, and an air pump pumps air into the interior of the empty slot through an air inlet pipe to push the top plate open, so that the top plate rises. When the top plate rises, it will push the workpiece upward, and at the same time, air will enter between the fixed die and the workpiece, thereby causing the fixed die and the workpiece to separate, which can effectively avoid deformation of the workpiece due to concentrated force.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aluminum profile extrusion die, comprising a fixed die and a movable die, the fixed die and the movable die cooperate with each other to complete the extrusion molding of the aluminum profile, a plurality of top plates for lifting the workpiece upward are provided on the lower side wall inside the fixed die, and the top plate is flush with the inner side wall of the fixed die, and the top plate is flush with the inner side wall of the fixed die during extrusion molding, which will not affect the extruded workpiece, the top plate is telescopically installed in the empty slot, the empty slot is opened on the fixed die, and is connected to the external air pump through the air intake pipe, the gas entering the empty slot will lift the top plate upward, and the air will enter between the workpiece and the fixed die, so that the upward force can be applied to the workpiece in a larger range, which can well avoid the deformation of the workpiece due to force.

[0005] Preferably, a sink groove is provided at the upper end of the empty groove and on the inner side wall of the fixed mold, the size of the sink groove is adapted to the size of the top plate, the inner diameter of the sink groove is adapted to the outer diameter of the top plate, and the thickness of the sink groove is adapted to the thickness of the top plate.

[0006] Preferably, a fixing rod is fixedly connected to the lower side of the top plate, the diameter of the fixing rod is smaller than the diameter of the top plate, the lower end of the fixing rod passes through the base rod and extends to the bottom of the base rod, the fixing rod and the base rod cooperate with each other, so that the top plate can only move up and down, the base rod is fixedly connected to the inside of the groove wall of the empty groove, the base rod will not affect the flow of air inside the empty groove, and a first spring is connected between the top plate and the base rod, one end of the first spring is fixedly connected to the top plate, and the other end is fixedly connected to the base rod.

[0007] Preferably, the lower end of the fixing rod is folded in all directions, and the arrangement of the folded portion can enable the fixing rod to be disconnected from the base rod during the upward movement of the top plate.

[0008] Preferably, guide rods are fixedly connected to the four corners of the fixed mold, and the movable mold is slidably connected to the guide rods. The setting of the guide rods can limit the movement trajectory of the movable mold.

[0009] Preferably, baffles are installed on the two guide rods at the same end, and the baffles can prevent the workpiece from flying out when the workpiece is demolded. When the workpiece is demolded, the staff can manually push the baffle toward the center of the fixed mold, and when the movable mold descends, it can slide outward without hindering the movement of the movable mold. When the movable mold descends for extrusion molding, the baffle can be pushed away from the center of the fixed mold.

[0010] Preferably, the baffle is provided with a plurality of through openings, the number and positions of the through openings correspond one-to-one to the number and positions of the guide rods, the center line of the through openings is perpendicular to the axis of the guide rod, the interior of the through openings is slidably connected with a sliding sleeve, the sliding sleeve is sleeved on the outer side of the guide rod, and a second spring is connected between the sliding sleeve and the fixed mold, and the upper and lower sides of the sliding sleeve are folded toward all sides.

[0011] Preferably, an annular groove is provided on the upper side surface of the fixed mold for making room for the second spring, the lower end of the second spring is fixedly connected to the bottom side wall of the annular groove, and a making way groove is provided on the movable mold for making room for the baffle plate. The setting of the annular groove and the making way groove can prevent the second spring from being subjected to excessive force.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Pump gas into the empty slot through the air inlet pipe to push the top plate open, so that the top plate exerts an upward force on the workpiece. At the same time, air enters between the workpiece and the fixed mold, which can assist the demolding of the workpiece and avoid deformation of the workpiece.

[0014] 2. A sink groove is opened at the upper end of the empty groove, which can support the top plate to prevent the top plate from being retracted into the empty groove during extrusion molding, thereby affecting the extrusion molding work;

[0015] 3. A baffle is set on the guide rod to effectively prevent the workpiece from being subjected to excessive force and flying out directly when demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a cross-sectional view of the fixed mold of the utility model.

[0018] Figure 3 It is a schematic diagram of the rising state of the top plate of the utility model.

[0019] Figure 4 It is a cross-sectional view of the guide rod of the utility model.

[0020] In the figure: 1, fixed mold, 2, movable mold, 3, top plate, 4, empty groove, 5, air inlet pipe, 6, sink groove, 7, fixed rod, 8, base rod, 9, first spring, 10, guide rod, 11, baffle, 12, through-hole, 13, sliding sleeve, 14, second spring, 15, ring groove, 16, clearance groove. DETAILED DESCRIPTION

[0021] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0022] Embodiment 1

[0023] In this embodiment, an aluminum profile extrusion die is provided, such as Figure 1 and Figure 2 As shown, it includes a fixed mold 1 and a movable mold 2, and the fixed mold 1 and the movable mold 2 cooperate with each other to complete the extrusion molding of the aluminum profile. A plurality of top plates 3 for lifting the workpiece upward are provided on the lower side wall inside the fixed mold 1, and the top plate 3 is flush with the inner side wall of the fixed mold 1. During extrusion molding, the top plate 3 is flush with the inner side wall of the fixed mold 1, and will not affect the extruded workpiece. The number of top plates 3 is set to multiple, and multiple points can be moved to apply an upward force to the workpiece, so that the workpiece can be better lifted. The top plate 3 can be telescopically installed in the empty slot 4, and the empty slot 4 is opened on the fixed mold 1, and is connected to the external air pump through the air inlet pipe 5. When the external air pump is started, gas can be pumped into the inside of the empty slot 4 through the air inlet pipe 5. The gas entering the inside of the empty slot 4 will lift the top plate 3 upward, and after the top plate 3 moves upward, air will enter between the workpiece and the fixed mold 1, so that an upward force can be applied to the workpiece in a larger range, and then the workpiece can be better demolded, and at the same time, the workpiece can be well prevented from being deformed by force.

[0024] like Figure 3 As shown, a sink groove 6 is provided at the upper end of the hollow groove 4 and on the inner side wall of the fixed mold 1. The size of the sink groove 6 is adapted to the size of the top plate 3, the inner diameter of the sink groove 6 is adapted to the outer diameter of the top plate 3, and the thickness of the sink groove 6 is adapted to the thickness of the top plate 3. The sink groove 6 can support the top plate 3, thereby preventing the top plate 3 from being forced to retract into the hollow groove 4 when the workpiece is extruded and formed, thereby affecting the extrusion forming of the workpiece.

[0025] A fixing rod 7 is fixedly connected to the lower side of the top plate 3. The diameter of the fixing rod 7 is smaller than that of the top plate 3, so that the gas will not be affected by passing through the empty groove 4 and the sink groove 6 to enter the interior of the fixed mold 1. The lower end of the fixing rod 7 passes through the base rod 8 and extends to the bottom of the base rod 8 and is folded around. The fixing rod 7 and the base rod 8 cooperate with each other, so that the top plate 3 can only move up and down, and an upward force can be better applied to the workpiece. The setting of the folding part can make the fixing rod 7 disconnected from the base rod 8 during the upward movement of the top plate 3, thereby affecting the reset of the top plate 3 and the fixing of the base rod 8. It is fixedly connected to the groove wall of the empty groove 4, and the base rod 8 will not affect the air flow inside the empty groove 4. A first spring 9 is connected between the top plate 3 and the base rod 8. One end of the first spring 9 is fixedly connected to the top plate 3, and the other end is fixedly connected to the base rod 8. The first spring 9 has a pulling force to pull the top plate 3 downward, so that the top plate 3 is flush with the inner wall of the fixed mold 1 when there is no external force, which will not affect the extrusion molding of the workpiece, and when gas is not pumped into the interior of the empty groove 4 after demolding, the top plate 3 will be reset under the action of the pulling force of the first spring 9.

[0026] The four corners of the fixed mold 1 are fixedly connected with guide rods 10, and the movable mold 2 is slidably connected to the guide rods 10. The setting of the guide rods 10 can limit the movement trajectory of the movable mold 2, so that the movable mold 2 can move up and down more stably, ensuring the quality of the extrusion molding of the workpiece.

[0027] Embodiment 2

[0028] On the basis of the first embodiment, in order to prevent the workpiece from being subjected to excessive force and flying up to cause danger, a baffle 11 is installed on the two guide rods 10 at the same end. The baffle 11 can prevent the workpiece from flying out when the workpiece is demolded. When the workpiece is demolded, the staff can manually push the baffle 11 toward the center of the fixed mold 1, so that the baffle 11 can play a blocking role when the workpiece flies upward, and can slide outward when the movable mold 2 descends without hindering the movement of the movable mold 2. When the movable mold 2 descends for extrusion molding, the baffle 11 can be pushed away from the center of the fixed mold 1, so as not to affect the descent of the movable mold 2.

[0029] like Figure 4 As shown, the baffle 11 is provided with a plurality of through openings 12, the number and position of the through openings 12 correspond one to one with the number and position of the guide rod 10, the center line of the through opening 12 is perpendicular to the axis of the guide rod 10, the inside of the through opening 12 is slidably connected with a sliding sleeve 13, the sliding sleeve 13 is sleeved on the outside of the guide rod 10, and a second spring 14 is connected between the sliding sleeve 13 and the fixed mold 1, the upper and lower sides of the sliding sleeve 13 are folded around, so that the baffle 11 can slide left and right when sliding up and down, and the second spring 14 has an elastic force to push the baffle 11 upward.

[0030] An annular groove 15 is provided on the upper side of the fixed mold 1 to make room for the second spring 14. The lower end of the second spring 14 is fixedly connected to the bottom side wall of the annular groove 15. A making way groove 16 is provided on the movable mold 2 to make room for the baffle 11. The setting of the annular groove 15 and the making way groove 16 can prevent the second spring 14 from being damaged due to excessive force.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An aluminum profile extrusion die, comprising a fixed die (1) and a movable die (2), characterized in that: A plurality of top plates (3) for lifting the workpiece upward are provided on the lower side wall inside the fixed mold (1), and the top plates (3) are flush with the inner side wall of the fixed mold (1). The top plates (3) are telescopically installed in the empty slot (4), and the empty slot (4) is provided on the fixed mold (1) and communicates with an external air pump through an air inlet pipe (5).

2. The aluminum profile extrusion die according to claim 1, characterized in that: A sink groove (6) is provided at the upper end of the empty groove (4) and on the inner side wall of the fixed mold (1), and the size of the sink groove (6) is matched with the size of the top plate (3).

3. The aluminum profile extrusion die according to claim 2, characterized in that: A fixing rod (7) is fixedly connected to the lower side of the top plate (3); the lower end of the fixing rod (7) passes through the base rod (8) and extends to the bottom of the base rod (8); the base rod (8) is fixedly connected to the inside of the groove wall of the empty groove (4); and a first spring (9) is connected between the top plate (3) and the base rod (8).

4. The aluminum profile extrusion die according to claim 3, characterized in that: The lower end of the fixing rod (7) is folded in all directions.

5. The aluminum profile extrusion die according to claim 1, characterized in that: The four corners of the fixed mold (1) are fixedly connected with guide rods (10), and the movable mold (2) is slidably connected to the guide rods (10).

6. The aluminum profile extrusion die according to claim 5, characterized in that: Baffles (11) are installed on the two guide rods (10) at the same end. The baffles (11) can prevent the workpiece from flying out when the workpiece is demoulded, and can slide outwards when the movable mold (2) descends without hindering the movement of the movable mold (2).

7. The aluminum profile extrusion die according to claim 6, characterized in that: The baffle plate (11) is provided with a plurality of through openings (12), the center lines of the through openings (12) are perpendicular to the axis of the guide rod (10), the interior of the through openings (12) is slidably connected with a sliding sleeve (13), the sliding sleeve (13) is sleeved on the outside of the guide rod (10), and a second spring (14) is connected between the sliding sleeve (13) and the fixed mold (1).

8. The aluminum profile extrusion die according to claim 7, characterized in that: The upper side surface of the fixed mold (1) is provided with an annular groove (15) for making room for the second spring (14), and the movable mold (2) is provided with a making way groove (16) for making room for the baffle (11).

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