Auxiliary structure of extrusion die

Abstract

The utility model relates to the field of dies, and discloses an auxiliary structure of an extrusion die, which comprises a base, a limit seat is arranged at the top of the base, a static die and a movable die are respectively fixedly arranged and movably arranged between the base and the limit seat, the static die and the movable die are matched and abutted against each other, a cylinder is arranged at the top of the limit seat, and a fixing frame is arranged at the driving end of the cylinder. The fixing frame is fixedly connected with the movable mold, a fixing hole is formed in the top of the movable mold, a sliding piece is arranged in the fixing frame in a sliding mode, an ejection piece is arranged at the bottom of the sliding piece, the ejection piece is inserted into the fixing hole in a sliding mode, a two-way lead screw is rotationally arranged in the fixing frame, and two nuts are connected to the two-way lead screw in a threaded and sleeved mode. The auxiliary structure of the extrusion die is convenient to operate and simple in principle, not only can be used for conveniently preparing a product, but also can be used for ejecting the product without damage after the product is cooled and molded, and in addition, the auxiliary structure of the extrusion die can also be used for automatically receiving materials, so that the auxiliary structure is convenient for assisting personnel to discharge materials.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to an auxiliary structure of an extrusion mold. Background Art

[0002] Extrusion dies are used to extrude metal materials by heating them to the hot forging temperature, that is, the blank is heated to a temperature above the recrystallization temperature of the metal before extrusion. Generally, after hot extrusion of machine parts, cutting and other mechanical processing are used to improve the dimensional accuracy and surface quality of the parts.

[0003] However, after the product is formed and cooled, most of the existing extrusion dies use an ejector pin or a cylinder drive end to eject the product in the movable mold. However, since the surface of the newly formed mold is relatively fragile, if an ejector pin or a cylinder drive end with a small contact area is directly used, it is easy to leave marks on the product, thereby affecting the product quality.

[0004] For example, an existing patent (publication number: CN216324887U) discloses a water-cooled hot extrusion die, in which a hydraulic cylinder is fixedly installed on the top of the upper die, the bottom end of the hydraulic cylinder passes through and extends to the interior of the upper die, and the bottom end of the hydraulic cylinder is fixedly connected to the extrusion module.

[0005] The extrusion die designed as described above has the following disadvantages in actual use: the extrusion die uses a hydraulic rod to drive the product out after the product is formed and cooled. Since the contact surface of the driving end of the hydraulic rod is small, the pressure generated when the product is pushed is large, which easily leaves marks on the product.

[0006] Therefore, we designed an auxiliary structure of the extrusion die to solve the above problems. Utility Model Content

[0007] The utility model aims to solve the shortcomings in the prior art and proposes an auxiliary structure for an extrusion die.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an auxiliary structure of an extrusion mold, comprising a base, a limiting seat is arranged on the top of the base, a static mold and a dynamic mold are fixedly and movably arranged between the base and the limiting seat, and the static mold and the dynamic mold cooperate with each other, a cylinder is arranged on the top of the limiting seat, a fixing frame is arranged on the driving end of the cylinder, the fixing frame is fixedly connected with the dynamic mold, a fixing hole is opened on the top of the dynamic mold, a sliding piece is slidably arranged in the fixing frame, a top piece is arranged at the bottom of the sliding piece, the top piece is slidably inserted in the fixing hole, a bidirectional screw rod is rotatably arranged in the fixing frame, two nuts are threadedly sleeved on the bidirectional screw rod, the nuts are connected with the sliding piece, a motor is arranged on one side of the fixing frame, and the driving shaft of the motor is drivingly connected with one end of the bidirectional screw rod.

[0009] As a further description of the above technical solution: a mounting seat is arranged at the bottom of the nut, two fixing seats are symmetrically arranged at the top of the sliding member, a rotating member is rotatably arranged in the fixing seat, and the other end of the rotating member is rotatably arranged in the mounting seat.

[0010] As a further description of the above technical solution: a first pin shaft and a second pin shaft are respectively arranged in the mounting seat and the fixing seat, and two ends of the rotating member are rotatably sleeved on the first pin shaft and the second pin shaft respectively.

[0011] As a further description of the above technical solution: a cavity and a limit opening are respectively provided inside and at the bottom of the fixing frame, the sliding member is slidably connected in the cavity, and the bidirectional screw rod is rotationally connected in the cavity.

[0012] As a further description of the above technical solution: support rods are arranged at the four corners of the top of the base, and the limit seat is fixedly connected to the top of the support rod.

[0013] As a further description of the above technical solution: two guide holes are arranged on the top of the static mold, and two guide posts are arranged on the bottom of the movable mold. The guide posts cooperate with the guide holes and slide into the guide holes.

[0014] As a further description of the above technical solution: a mounting plate is arranged on the top of the base, an electric push rod is arranged on one side of the mounting plate, a material receiving piece is arranged on the driving end of the electric push rod, and the mounting plate is slidably connected in the limit opening.

[0015] As a further description of the above technical solution: a controller is arranged on the front side of one of the support rods, and the controller is electrically connected to the cylinder, the motor and the electric push rod.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, when the product extruded by the static mold and the dynamic mold is cooled and formed, the cylinder is first turned on to separate the static mold from the dynamic mold. At this time, the product cannot be unloaded due to the friction between itself and the static mold. Then, the motor is turned on to make the top piece move downward in the fixed hole. Since the area of ​​the top piece is large, the product can be pushed out and marks can be avoided on the surface of the product, which helps to improve production quality.

[0018] 2. In the utility model, before the product is pushed down, by turning on the electric push rod, the material receiving piece can be moved to the bottom of the movable mold, thereby facilitating the receiving of the product that is ejected and dropped, thereby facilitating the auxiliary personnel to take the material and improving the production rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural diagram of the exterior of an extrusion die proposed by the utility model;

[0020] Figure 2 This is a planar structural diagram of the interior of an extrusion die proposed by the utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the exterior of a static die of an extrusion die proposed by the utility model;

[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. Base; 2. Limit seat; 3. Support rod; 4. Static mold; 5. Moving mold; 6. Fixed frame; 7. Cylinder; 8. Sliding piece; 9. Top piece; 10. Fixed hole; 11. Bidirectional screw rod; 12. Nut; 13. Motor; 14. Mounting seat; 15. Fixed seat; 16. Rotating piece; 17. Mounting plate; 18. Electric push rod; 19. Material receiving piece. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Reference Figure 1-4 , the utility model provides an embodiment: an auxiliary structure of an extrusion die, comprising a base 1, a limited seat 2 is arranged on the top of the base 1, a static die 4 and a dynamic die 5 are respectively fixedly arranged and movably arranged between the base 1 and the limited seat 2, and the static die 4 and the dynamic die 5 are matched and abutted against each other, a cylinder 7 is arranged on the top of the limited seat 2, a fixed frame 6 is arranged on the driving end of the cylinder 7, the fixed frame 6 is fixedly connected with the dynamic die 5, a fixed hole 10 is opened on the top of the dynamic die 5, a sliding piece 8 is slidably arranged in the fixed frame 6, a top piece 9 is arranged at the bottom of the sliding piece 8, and the top piece 9 is slidably inserted in the fixing hole 10, a bidirectional screw rod 11 is rotatably arranged in the fixed frame 6, two nuts 12 are threadedly sleeved on the bidirectional screw rod 11, and the nuts 12 are connected with the sliding piece 8, a motor 13 is arranged on one side of the fixed frame 6, and the driving shaft of the motor 13 is drivingly connected with one end of the bidirectional screw rod 11;

[0028] A mounting seat 14 is provided at the bottom of the nut 12, and two fixed seats 15 are symmetrically provided on the top of the slide 8. A rotating member 16 is rotatably provided in the fixed seat 15, and the other end of the rotating member 16 is rotatably provided in the mounting seat 14. A first pin shaft and a second pin shaft are respectively provided in the mounting seat 14 and the fixed seat 15, and both ends of the rotating member 16 are rotatably sleeved on the first pin shaft and the second pin shaft respectively. A cavity and a limit opening are respectively provided in and at the bottom of the fixing frame 6, the slide 8 is slidably connected in the cavity, the mounting plate 17 is slidably connected in the limit opening, and the bidirectional screw rod 11 is rotatably connected in the cavity.

[0029] In specific implementation, when the extrusion mold needs to be used, first inject an appropriate amount of high-temperature hot-melt raw material into the static mold 4, and then turn on the cylinder 7, so that the driving end of the cylinder 7 is extended to drive the dynamic mold 5 close to the static mold 4, until the dynamic mold 5 and the static mold 4 are abutted. At this time, the guide column will also be inserted into the guide hole, and the raw material can be extruded into shape. When the product is formed and cooled, the static mold 4 and the dynamic mold 5 are separated according to the above principle. At this time, the product cannot be unloaded due to the friction between itself and the static mold 4. Then turn on the motor 13 to rotate the bidirectional screw 11, so that the two nuts 12 are close to each other, and then the top piece 9 moves downward in the fixing hole 10. Since the area of ​​the top piece 9 is large, it can not only push the product out, but also avoid leaving marks on the surface of the product, which helps to improve production quality.

[0030] The four corners of the top of the base 1 are all provided with support rods 3, and the limiting seat 2 is fixedly connected to the top of the support rods 3. It can be used to support the base 1 and the limiting seat 2, thereby improving stability.

[0031] The top of the static mold 4 is provided with two guide holes, and the bottom of the dynamic mold 5 is provided with two guide posts, and the guide posts cooperate with the guide holes to slide and insert the holes in the guide holes. The base 1 and the limit seat 2 can be limited, which helps to solve the problem of misalignment between the base 1 and the limit seat 2.

[0032] A mounting plate 17 is provided on the top of the base 1, an electric push rod 18 is provided on one side of the mounting plate 17, and a material receiving piece 19 is provided at the driving end of the electric push rod 18. Before the product is pushed down, by turning on the electric push rod 18, the material receiving piece 19 can be moved to the bottom of the movable mold 5, so as to facilitate the receiving of the product to be ejected and dropped, thereby facilitating the auxiliary personnel to take the material and improving the production rate.

[0033] A controller is provided on the front side of one of the support rods 3, and the controller is electrically connected to the cylinder 7, the motor 13 and the electric push rod 18. It is convenient for personnel to control the switches of the cylinder 7, the motor 13 and the electric push rod 18.

[0034] As for the controller, by operating the controller, the controller can send electrical signals to the cylinder 7, the motor 13 and the electric push rod 18 and activate them, thereby achieving the purpose of conveniently controlling the cylinder 7, the motor 13 and the electric push rod 18. Since the controller is a prior art, it will not be explained in detail in this manual.

[0035] Working principle: When the extrusion die is needed, firstly, an appropriate amount of high-temperature hot-melt raw material is injected into the static die 4, and then the cylinder 7 is turned on to extend the driving end of the cylinder 7 to drive the dynamic die 5 close to the static die 4 until the dynamic die 5 and the static die 4 are against each other. At this time, the guide column will also be inserted into the guide hole, and the raw material can be extruded and formed. When the product is formed and cooled, the static die 4 and the dynamic die 5 are separated according to the above principle. At this time, the product cannot be unloaded due to the friction between itself and the static die 4. Then, the motor 13 is turned on to rotate the bidirectional screw 11 so that the two nuts 12 are close to each other, and then the top piece 9 moves downward in the fixing hole 10. Since the area of ​​the top piece 9 is large, it can not only push the product out, but also avoid leaving marks on the surface of the product, which helps to improve the production quality. In addition, it should be noted that before the product is pushed down, by turning on the electric push rod 18, the material receiving piece 19 can be moved to the bottom of the dynamic die 5, so as to facilitate the reception of the product to be ejected and dropped, thereby facilitating the auxiliary personnel to take the material and improving the production rate.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary structure of an extrusion die, comprising a base (1), a limit seat (2) is arranged on the top of the base (1), a static die (4) and a dynamic die (5) are respectively fixedly arranged and movably arranged between the base (1) and the limit seat (2), and the static die (4) and the dynamic die (5) are matched and abutted against each other, a cylinder (7) is arranged on the top of the limit seat (2), a fixed frame (6) is arranged at the driving end of the cylinder (7), and the fixed frame (6) is fixedly connected to the dynamic die (5), characterized in that: A fixing hole (10) is provided at the top of the movable mold (5), a sliding member (8) is slidably arranged in the fixing frame (6), a top member (9) is arranged at the bottom of the sliding member (8), and the top member (9) is slidably inserted in the fixing hole (10), a bidirectional screw rod (11) is rotatably arranged in the fixing frame (6), two nuts (12) are threadedly sleeved on the bidirectional screw rod (11), and the nuts (12) are connected to the sliding member (8), and a motor (13) is arranged on one side of the fixing frame (6), and a driving shaft of the motor (13) is drivingly connected to one end of the bidirectional screw rod (11).

2. The auxiliary structure of an extrusion die according to claim 1, characterized in that: A mounting seat (14) is arranged at the bottom of the nut (12), two fixing seats (15) are symmetrically arranged at the top of the sliding member (8), a rotating member (16) is rotatably arranged in the fixing seat (15), and the other end of the rotating member (16) is rotatably arranged in the mounting seat (14).

3. The auxiliary structure of an extrusion die according to claim 2, characterized in that: A first pin shaft and a second pin shaft are respectively arranged in the mounting seat (14) and the fixing seat (15), and two ends of the rotating member (16) are rotatably sleeved on the first pin shaft and the second pin shaft respectively.

4. The auxiliary structure of an extrusion die according to claim 1, characterized in that: A cavity and a limit opening are respectively arranged inside and at the bottom of the fixing frame (6); the sliding member (8) is slidably connected in the cavity; and the bidirectional screw rod (11) is rotatably connected in the cavity.

5. The auxiliary structure of an extrusion die according to claim 1, characterized in that: Support rods (3) are provided at the four corners of the top of the base (1), and the limiting seat (2) is fixedly connected to the top of the support rod (3).

6. The auxiliary structure of an extrusion die according to claim 1, characterized in that: The top of the static mold (4) is provided with two guide holes, and the bottom of the movable mold (5) is provided with two guide posts, and the guide posts cooperate with the guide holes to slide and insert in the guide holes.

7. The auxiliary structure of an extrusion die according to claim 1, characterized in that: A mounting plate (17) is arranged on the top of the base (1), an electric push rod (18) is arranged on one side of the mounting plate (17), a material receiving piece (19) is arranged on the driving end of the electric push rod (18), and the mounting plate (17) is slidably connected in the limit opening.

8. The auxiliary structure of an extrusion die according to claim 5, characterized in that: A controller is provided on the front side of one of the support rods (3), and the controller is electrically connected to the cylinder (7), the motor (13) and the electric push rod (18).

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