Mold closing mechanism

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a mold closing mechanism which comprises a lower mold, the lower mold is fixedly mounted on a placement table, a cylinder is fixedly connected to the upper side of the placement table, a top plate is fixedly connected to the top of the cylinder, an upper mold assembly and an extrusion assembly are arranged above the lower mold, and the extrusion assembly is fixedly connected to the top of the cylinder. An auxiliary discharging mechanism is arranged below the top plate and comprises a top disc. According to the mold closing mechanism, through the use of the upper mold assembly, the auxiliary discharging mechanism and the extrusion assembly, an upper mold can be stably closed with a lower mold, in the process that a mounting plate drives the upper mold to reset, a check block can drive a V-shaped rod to move around a hinge shaft of the V-shaped rod, a sliding rod slides in a straight notch, and meanwhile a connecting rod is pushed to move; the ejector rod drives the ejector disc to ascend to eject a die-cast workpiece out of the lower die, a power source does not need to be additionally arranged, and operation is coherent and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technology field, concretely is a die closing mechanism. BACKGROUND

[0002] Die closing mechanism is widely used in multiple industries, and generally comprises an upper die, a lower die, a pressing mechanism and a guide mechanism, so that the upper die can be stably pressed down to realize die casting on the workpiece in cooperation with the lower die.

[0003] At present, in the existing die casting technology, in order to facilitate the smooth removal of the workpiece from the lower die after die casting, an ejection mechanism is usually added. These ejection mechanisms can directly exert an upward force on the workpiece in the lower die, thereby ejecting it. However, this method has some shortcomings in actual application. The ejection mechanism generally uses an additional power source, which can be pneumatic, hydraulic or electric. At the same time, the operation of the ejection mechanism requires independent program control. This requires the control system of the die casting equipment to have higher complexity and flexibility in order to accurately control the timing and force of the ejection mechanism. This not only increases the difficulty of programming, but also may affect the overall production efficiency. In view of this, a die closing mechanism is proposed. SUMMARY

[0004] The main purpose of the utility model is to provide a die closing mechanism, which can solve the problems raised in the background art.

[0005] To achieve the above purpose, the die closing mechanism proposed by the utility model comprises a lower die, which is fixedly installed on a placement table, the upper side of the placement table is fixedly connected with a cylinder, the top of the cylinder is fixedly connected with a top plate, the upper side of the lower die is provided with an upper die assembly and an extrusion assembly, the lower side of the top plate is provided with an auxiliary discharge mechanism, and the auxiliary discharge mechanism comprises:

[0006] A top disc is arranged in the lower die, the lower side of the top disc is fixedly connected with a top rod, and the outer wall of the top rod is fixedly connected with a round rod;

[0007] An inclined groove is formed in the outer wall of the sliding block, the round rod slides in the inclined groove, and a connecting rod is fixedly connected to the outer wall of the sliding block;

[0008] A V-shaped rod is hingedly connected to the placement table, one end of the V-shaped rod close to the connecting rod is fixedly connected with a sliding rod, and the sliding rod is slidingly connected in the straight slot of the connecting rod.

[0009] Preferably, the top rod is placed through the placement table and is in sliding connection with the placement table, the V-shaped rod is elastically connected to the placement table through an arc spring close to one end of the sliding rod, the sliding block slides on the guide rail, and the guide rail is fixedly connected to the lower side of the placement table.

[0010] Preferably, the upper die assembly comprises a cylinder, the cylinder is fixedly connected to the upper side of the top plate, a mounting plate is fixedly connected to the output end of the cylinder, and an upper die is fixedly installed on the lower side of the mounting plate.

[0011] Preferably, the mounting plate is penetrated by a cylinder and is in sliding connection with the cylinder.

[0012] Preferably, the lower side of the upper die is fixedly connected with a positioning block.

[0013] Preferably, the extrusion assembly comprises a vertical rod, the vertical rod is fixedly connected to the lower side of the mounting plate, the vertical rod is hinged with a stop block, a limiting block is arranged on the lower side of the stop block, and the limiting block is fixedly connected to the outer wall of the vertical rod.

[0014] The utility model provides a die closing mechanism. Has the following beneficial effects:

[0015] (1), the die closing mechanism passes through the use of upper die assembly, auxiliary discharging mechanism and extrusion assembly, can stably make the upper die with the lower die, and in the process that the mounting plate drives the upper die to reset, the stop block can drive the V-shaped rod to move around the hinging shaft, the sliding rod slides in the straight slot, simultaneously promotes the connecting rod to move, and then drives the sliding block to move, makes the round rod move in the inclined slot, and the top rod drives the top disc to ascend and ejects the die casting workpiece from the lower die, does not need to additionally increase the power source, and the operation is coherent and convenient.

[0016] (2), the die closing mechanism passes through the use of upper die assembly, auxiliary discharging mechanism and extrusion assembly, in the process that the upper die descends and the lower die closes, when the V-shaped rod abuts against the stop block, the stop block rotates around the hinging point, will not make the V-shaped rod and the connecting rod move, and then the top rod does not move, guarantees the stability when the upper die and the lower die close. DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the drawings shown.

[0018] Figure 1 The overall three-dimensional structure of the present application Figure One ;

[0019] Figure 2 The overall three-dimensional structure of the present application Figure Two ;

[0020] Figure 3 The partial cross-sectional structure of the present application

[0021] Figure 4 The upper die structure of the present application

[0022] Figure 5 The auxiliary discharging mechanism structure of the present application

[0023] Figure 6 The extrusion assembly structure of the present application.

[0024] Explanation of the reference numerals:

[0025] 1, lower die; 2, placement table; 3, cylinder; 4, top plate; 5, upper die assembly; 6, auxiliary discharging mechanism; 7, extrusion assembly; 51, air cylinder; 52, mounting plate; 53, upper die; 531, positioning block; 61, top disc; 62, top rod; 63, round rod; 64, inclined chute; 65, sliding block; 66, guide rail; 67, connecting rod; 68, straight slot; 69, sliding rod; 610, V-shaped rod; 71, vertical rod; 72, stop block; 73, limiting block.

[0026] The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0028] Please refer to Figures 1-6The utility model provides a mould closing mechanism, including lower mould 1, lower mould 1 fixed mounting is placed on the table 2, the upper side fixed connection of placing table 2 has cylinder 3, the top fixed connection of cylinder 3 has top plate 4, the upper of lower mould 1 is provided with upper mould subassembly 5 with extrusion subassembly 7, the below of top plate 4 is provided with auxiliary discharge mechanism 6.

[0029] In the embodiment of the utility model, in order to be able to carry out stable closing, specific, upper mould subassembly 5 includes cylinder 51, cylinder 51 fixed connection is placed on the upper side of top plate 4, the output end of cylinder 51 is fixedly connected with mounting plate 52, mounting plate 52 is penetrated by cylinder 3 and is slidably connected with cylinder 3, the lower side fixed mounting of mounting plate 52 has upper mould 53, the lower side fixed connection of upper mould 53 has locating block 531, by starting cylinder 51, the output end of cylinder 51 drives mounting plate 52 to descend, in turn drive upper mould 53 to descend, under the guidance of cylinder 3, make mounting plate 52 steadily descend, realize the stable closing of upper mould 53 and lower mould 1.

[0030] Further, in order to be able to realize the automatic ejection of die casting workpiece, specific, auxiliary discharge mechanism 6 includes top disc 61, chute 64 and V type rod 610, top disc 61 sets up in lower mould 1, the lower side fixed connection of top disc 61 has top rod 62, top rod 62 penetrates placing table 2 and is slidably connected with placing table 2, the outer wall of top rod 62 is fixedly connected with round rod 63, chute 64 is set up on the outer wall of sliding block 65, sliding block 65 slides on guide rail 66, guide rail 66 is fixedly connected on the lower side of placing table 2, round rod 63 slides in chute 64, the outer wall of sliding block 65 is fixedly connected with connecting rod 67, V type rod 610 is hinged with placing table 2, one end of V type rod 610 close to sliding rod 69 is elastically connected with placing table 2 through arc spring, one end of V type rod 610 close to connecting rod 67 is fixedly connected with sliding rod 69, sliding rod 69 is slidably connected in straight slot 68 of connecting rod 67, extrusion subassembly 7 includes vertical rod 71, vertical rod 71 is fixedly connected on the lower side of mounting plate 52, vertical rod 71 is hinged with stop block 72, the lower side of stop block 72 is provided with limit block 73, limit block 73 is fixedly connected on the outer wall of vertical rod 71, when V type rod 610 and stop block 72 abut when descending with lower mould 1 in the process of driving upper mould 53 down by mounting plate 52, stop block 72 rotates around its hinge point, will not make V type rod 610 and connecting rod 67 move, in turn top rod 62 does not move, guarantee the stability when upper mould 53 and lower mould 1 close, after the die casting of workpiece is completed, drive upper mould 53 to reset in the process of driving mounting plate 52, stop block 72 can drive V type rod 610 to move around its hinge shaft, sliding rod 69 slides in straight slot 68, simultaneously promotes connecting rod 67 to move, in turn drive sliding block 65 to move, make round rod 63 move in chute 64, top rod 62 drives top disc 61 to ascend and ejects the die casting workpiece from lower mould 1, need not additional power source, and operation is coherent and convenient.

[0031] It should be noted that the above-mentioned electrical components are all products of the prior art, which are selected, installed and debugged by those skilled in the art according to the needs of use to ensure that each electrical appliance can work normally, and the components are all general standard components or components known to those skilled in the art, the structure and principle of which can be known by technical personnel through technical manuals or through conventional experimental methods, and the applicant does not make specific limitations here.

[0032] In use, first, the workpiece is placed on the lower die 1, and then the air cylinder 51 is started, the output end of the air cylinder 51 drives the mounting plate 52 to descend, and then drives the upper die 53 to descend, under the guidance of the cylinder 3, the mounting plate 52 stably descends, realizing the die casting of the workpiece, in the process of the mounting plate 52 driving the upper die 53 to descend and the lower die 1 to perform the mold closing, when the V-shaped rod 610 abuts against the stop block 72, the stop block rotates around its hinge point, without making the V-shaped rod 610 and the connecting rod 67 move, and then the ejector rod 62 does not move, ensuring the stability of the mold closing of the upper die 53 and the lower die 1, after the die casting of the workpiece is completed, the air cylinder 51 is started, the mounting plate 52 drives the upper die 53 to reset, in the process, the stop block 72 can drive the V-shaped rod 610 to move around its hinge shaft, the slide rod 69 slides in the straight slot 68, and at the same time, drives the connecting rod 67 to move, and then drives the slide block 65 to move, making the round rod 63 move in the inclined groove 64, the ejector rod 62 drives the ejector disc 61 to ascend and eject the die-cast workpiece from the lower die 1.

[0033] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A mold clamping mechanism comprising a lower mold (1), characterized in that: The lower mold (1) is fixedly installed on the placement table (2), the upper side of the placement table (2) is fixedly connected with a cylinder (3), the top of the cylinder (3) is fixedly connected with a top plate (4), the upper side of the lower mold (1) is provided with an upper mold assembly (5) and an extrusion assembly (7), the lower side of the top plate (4) is provided with an auxiliary discharging mechanism (6), the auxiliary discharging mechanism (6) comprises: A top disc (61) is arranged in the lower mold (1), the lower side of the top disc (61) is fixedly connected with a top rod (62), and the outer wall of the top rod (62) is fixedly connected with a round rod (63); An inclined groove (64) is arranged on the outer wall of a sliding block (65), the round rod (63) slides in the inclined groove (64), and the outer wall of the sliding block (65) is fixedly connected with a connecting rod (67); A V-shaped rod (610) is hingedly connected with the placement table (2), one end of the V-shaped rod (610) close to the connecting rod (67) is fixedly connected with a sliding rod (69), and the sliding rod (69) is slidingly connected in a straight slot (68) of the connecting rod (67).

2. The mold clamping mechanism of claim 1 wherein: The top rod (62) penetrates through and is slidingly connected with the placement table (2), one end of the V-shaped rod (610) close to the sliding rod (69) is elastically connected with the placement table (2) through an arc-shaped spring, the sliding block (65) slides on a guide rail (66), and the guide rail (66) is fixedly connected to the lower side of the placement table (2).

3. The mold clamping mechanism of claim 1 wherein: The upper mold assembly (5) comprises a gas cylinder (51), the gas cylinder (51) is fixedly connected to the upper side of the top plate (4), the output end of the gas cylinder (51) is fixedly connected with a mounting plate (52), and the lower side of the mounting plate (52) is fixedly installed with an upper mold (53).

4. The mold clamping mechanism of claim 3 wherein: The mounting plate (52) is penetrated through and slidingly connected with the cylinder (3).

5. The mold clamping mechanism of claim 3 wherein: The lower side of the upper mold (53) is fixedly connected with a positioning block (531).

6. The mold clamping mechanism of claim 3 wherein: The extrusion assembly (7) comprises a vertical rod (71), the vertical rod (71) is fixedly connected to the lower side of the mounting plate (52), The vertical rod (71) is hingedly connected with a stop block (72), the lower side of the stop block (72) is provided with a limiting block (73), And the limiting block (73) is fixedly connected to the outer wall of the vertical rod (71). ​

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