Die structure for reducing blocking extrusion force

Abstract

The utility model discloses a die structure capable of reducing blocking extrusion force, which relates to the field of dies, solves the problem that the service life of the die structure is affected by inaccurate blank quantity in the prior art, and adopts the following scheme that the die structure comprises a bottom plate and a lower die holder mounted on the top side of the bottom plate, an upper die holder is arranged on the top side of the lower die holder, and a lower die groove is formed in the center of the top of the lower die holder; an upper die groove is formed in the center of the bottom of the upper die base, and a die is arranged between the lower die groove and the upper die groove. A punch is arranged on the bottom side of the die, a material flowing groove is formed in the edge of the top side of the die, a first hydraulic cylinder is fixedly installed in the center of the top of the bottom plate, and the top end of an output shaft of the first hydraulic cylinder is fixedly connected with the punch. According to the mold structure capable of reducing the blocking extrusion force, through the arrangement of the annular material flowing groove in the top side of the mold, redundant materials can flow into the groove during blocking extrusion, the extrusion force is not increased, and therefore the service life of the mold is prolonged, and the production efficiency of the mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould technical field, concretely is a mould structure that reduces closed extrusion pressure. BACKGROUND

[0002] Through the search, the application of patent application No. 202120547922. X, discloses a multi-cavity extrusion die structure, the structure includes the upper die body, the upper die body is formed with a plurality of welding chambers, each welding chamber is formed with a work belt; a plurality of welding chambers are uniformly distributed along the circumference of the upper die body; the spacing between adjacent two welding chambers is not less than 15 millimeters. The multi-cavity extrusion die structure provided by the present application is changed from single welding chamber die to multi-welding chamber die, the extrusion ratio of single welding chamber die is 505, and the phenomenon of car stalling and reverse aluminum is prone to occur, and for example, six welding chamber dies are used, which can greatly reduce the extrusion ratio and reduce the extrusion pressure; the design of the welding chamber can make the extrusion pressure not directly act on the work belt, ensure the service life of the die, and also ensure the welding of the front and rear bars. It can also improve the extrusion efficiency and the service life of the die, reduce the production cost, and has obvious economic benefits;

[0003] The closed extrusion technology is relatively mature, but in the automatic production process, the closed extrusion has strict requirements on the blanking blank, and the weight of the blank slightly affects the extrusion force and the size and service life of the die, but even if the blank is divided into several grades in actual production process, the weight of the blank cannot be completely consistent, which affects the service life of the die in rapid automatic production, and too many grades of blanking also affect the efficiency of automatic production.

[0004] Therefore, we propose a die structure for reducing closed extrusion pressure. INVENTION CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a die structure for reducing closed extrusion pressure, which solves the problem that the inaccurate amount of the existing blank affects the service life.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a die structure for reducing closed extrusion pressure, comprising a bottom plate and a lower die seat installed on the top side thereof, the top side of the lower die seat is provided with an upper die seat, a lower die groove is formed in the center of the top of the lower die seat, an upper die groove is formed in the center of the bottom of the upper die seat, and a die is arranged between the lower die groove and the upper die groove.

[0007] The bottom side of the die is provided with a punch, and a flow channel is formed in the top side edge of the die.

[0008] As an optional scheme of the utility model, a first hydraulic cylinder is fixedly installed in the center of the top of the bottom plate, and the top end of the output shaft of the first hydraulic cylinder is fixedly connected with the punch.

[0009] The first hydraulic cylinder is arranged to push the material upwards to extrude the material on the inner side of the mold, thereby ensuring the extrusion molding effect of the material.

[0010] As a preferred scheme of the utility model, the lower mold groove in the lower mold base is a through groove, and the top end of the punch is arranged below the mold through the bottom end of the lower mold groove.

[0011] The through arrangement of the lower mold groove facilitates the upward ejection of the material by the punch, thereby ensuring the manufacturing effect of the subsequent mold body.

[0012] As a preferred scheme of the utility model, the edge of the top side of the mold is provided with a flow groove in a ring shape, and the flow groove is a sharp groove.

[0013] The arrangement of the flow groove can flow the excess material into the groove during occlusive extrusion, without increasing the extrusion force, thereby improving the mold life and production efficiency.

[0014] As a preferred scheme of the utility model, the two sides of the bottom plate are fixedly provided with side plates, the second hydraulic cylinder is fixedly installed on the side plates, and the outer wall of the upper mold base is fixedly provided with a receiving plate fixedly connected to the top end of the second hydraulic cylinder.

[0015] The arrangement of the second hydraulic cylinder can adjust the distance between the upper mold base and the lower mold base, thereby facilitating the subsequent extrusion molding and material taking operation.

[0016] As a preferred scheme of the utility model, the four corners of the bottom of the lower mold base are fixedly connected to the top surface of the bottom plate through four groups of L-shaped steel frames.

[0017] The arrangement of the multiple groups of steel frames can ensure the supporting effect of the lower mold base and ensure the stability thereof.

[0018] The utility model provides a mold structure for reducing occlusive extrusion pressure.

[0019] The mold structure for reducing occlusive extrusion pressure is provided with a ring-shaped flow groove on the top side of the mold, can flow the excess material into the groove during occlusive extrusion, without increasing the extrusion force, thereby improving the mold life and production efficiency, and solving the problem that the inaccurate amount of the blank affects the service life. DRAWINGS

[0020] Figure 1 The utility model is a structural schematic view;

[0021] Figure 2 The utility model is a structural schematic view of a lower mold;

[0022] Figure 3It is a structure schematic view of the upper die of the utility model.

[0023] Figure 4 It is a structure schematic view of the die of the utility model.

[0024] In the drawing: 1, bottom plate; 2, first hydraulic cylinder; 3, second hydraulic cylinder; 4, steel frame; 5, lower die seat; 51, lower die groove; 6, upper die seat; 61, upper die groove; 7, die; 71, flow channel; 8, punch. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-4 The utility model embodiment provides a kind of technical scheme: a die structure for reducing occlusion extrusion pressure, including bottom plate 1 and the lower die seat 5 installed on its top side, the top side of lower die seat 5 is provided with upper die seat 6, the center of lower die seat 5 top is provided with lower die groove 51, the center of upper die seat 6 bottom is provided with upper die groove 61, and lower die groove 51 and upper die groove 61 are provided with die 7 between;The bottom side of die 7 is provided with punch 8, and the top side edge of die 7 is provided with flow channel 71;

[0027] Wherein, the die structure for reducing occlusion extrusion pressure, by the setting of annular flow channel 71 of die 7 top side, can when occlusion extrusion, excess flow into groove, not increase extrusion pressure, to improve die life and production efficiency, solve the problem that existing billet quantity is not accurate and affects its service life. EMBODIMENT

[0028] First hydraulic cylinder 2 is fixedly installed at the center of the top of bottom plate 1, and the top end of the output shaft of first hydraulic cylinder 2 is fixedly connected with punch 8;Wherein, the setting of first hydraulic cylinder 2 can extrude material upwards so as to extrude material on the inside of die 7, to ensure the extrusion molding effect of material.

[0029] Lower die groove 51 in the inside of lower die seat 5 is through groove, and the top end of punch 8 is arranged below die 7 by the bottom end of lower die groove 51;Wherein, the through setting of lower die groove 51 facilitates punch 8 to extrude material upwards, to ensure the manufacturing effect of subsequent die body.

[0030] The edge of the top side of the mold 7 is provided with a flow channel 71 in the form of a ring, and the flow channel 71 is a sharp channel; wherein the setting of the flow channel 71 can flow into the channel when occlusion extrusion, without increasing the extrusion pressure, thereby improving the mold life and production efficiency.

[0031] The bottom plate 1 is fixedly installed with side plates on both sides, the second hydraulic cylinder 3 is fixedly installed on the side plate, and the outer wall of the upper die holder 6 is fixedly installed with a receiving plate fixedly connected to the top end of the second hydraulic cylinder 3; wherein the second hydraulic cylinder 3 can adjust the distance between the upper die holder 6 and the lower die holder 5, so as to facilitate subsequent extrusion molding and material taking operation.

[0032] The bottom plate 1 is fixedly installed with side plates on both sides, the second hydraulic cylinder 3 is fixedly installed on the side plate, and the outer wall of the upper die holder 6 is fixedly installed with a receiving plate fixedly connected to the top end of the second hydraulic cylinder 3; wherein the second hydraulic cylinder 3 can adjust the distance between the upper die holder 6 and the lower die holder 5, so as to facilitate subsequent extrusion molding and material taking operation.

[0033] The working principle and use process of the utility model are as follows: the mold 7 is placed in the lower die groove 51 on the top side of the lower die holder 5, the material is injected into the inside, then the second hydraulic cylinder 3 is opened to drive the upper die groove 61 on the bottom side of the upper die holder 6 to be sleeved on the outside of the top end of the lower die holder 5, finally the first hydraulic cylinder 2 is opened to drive the punch 8 to move upwards, the material is occlusion extruded in the mold 7, and when occlusion extrusion, the excess flow is flowed into the flow channel 71, without increasing the extrusion pressure, thereby improving the mold life and production efficiency, and solving the problem that the inaccurate blank quantity affects the service life.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model, for those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A die structure for reducing occlusion extrusion pressure, characterized by: Including bottom plate (1) and its top side installed lower die seat (5), the top side of lower die seat (5) is provided with upper die seat (6), the center of lower die seat (5) top is provided with lower die groove (51), the bottom of upper die seat (6) is provided with upper die groove (61), and lower die groove (51) and upper die groove (61) are provided with mould (7) between them; The bottom side of the mold (7) is provided with a punch (8), and the top side edge of the mold (7) is provided with a flow channel (71).

2. A die structure for reducing occlusion pressing force according to claim 1, wherein: The center of the top of the bottom plate (1) is fixedly installed with a first hydraulic cylinder (2), and the top end of the output shaft of the first hydraulic cylinder (2) is fixedly connected with a punch (8).

3. A die structure for reducing occlusion pressing force according to claim 1, wherein: The lower die groove (51) of the lower die seat (5) is a through groove, and the top end of the punch (8) is arranged below the mold (7) through the bottom end of the lower die groove (51).

4. The die structure of claim 1 wherein: The edge of the top side of the mold (7) is provided with a flow channel (71) in the form of a ring, and the flow channel (71) is a sharp slot.

5. The die structure of claim 1 wherein: Both sides of the bottom plate (1) are fixedly installed with side plates, the second hydraulic cylinder (3) is fixedly installed on the side plates, and the outer wall of the upper die seat (6) is fixedly installed with a receiving plate fixedly connected to the top end of the second hydraulic cylinder (3).

6. The die structure of claim 1 wherein: The bottom of the lower die seat (5) is fixedly connected to the top surface of the bottom plate (1) by four groups of L-shaped steel frames (4).

Images