Hot extrusion hard alloy divergent die

Abstract

The utility model relates to the field of divergent dies, in particular to a divergent die for hot extrusion of hard alloy, which comprises a support, two groups of lower dies for extruding hard alloy are symmetrically arranged on two sides of the support, and an upper die unit for extruding hard alloy is arranged on one side of each lower die. A driving unit used for switching the working position and the maintenance position of the upper die unit is further arranged on one side of the support. According to the split-flow die, the problem that the working efficiency is reduced due to the fact that an existing split-flow die needs to be maintained, checked or replaced after being used for a period of time is solved, the working efficiency of the split-flow die is effectively improved, the service life of the split-flow die is effectively prolonged, the length of the split-flow holes can be changed according to the flowability of extrusion materials, and the production efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shunt mould field, especially a hot extrusion hard alloy shunt mould die. BACKGROUND

[0002] The shunt mould die is mainly composed of two parts of an upper die and a lower die, when extruding a profile, the hard alloy flows into a welding chamber in the lower die through a shunt hole in the upper die after shunting, is gathered in the welding chamber, and then enters a forming space formed by a die core and a die hole to be extruded and formed, and finally is discharged from the die hole.

[0003] The existing shunt mould die needs to be maintained and checked or replaced after being used for a period of time, which reduces work efficiency, and therefore the hot extrusion hard alloy shunt mould die is provided to solve the above problems. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] The utility model is proposed in view of the problem that the existing shunt mould die needs to be maintained and checked or replaced after being used for a period of time, which reduces work efficiency.

[0006] Therefore, the utility model aims to provide a hot extrusion hard alloy shunt mould die, which aims to solve the problem that the existing shunt mould die needs to be maintained and checked or replaced after being used for a period of time, which reduces work efficiency.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: including the support, two groups of lower moulds for extruding hard alloy are symmetrically arranged on both sides of the support, an upper mould unit for extruding hard alloy is arranged on one side of the lower mould, and a driving unit for switching the working position and the maintenance position of the upper mould unit is further arranged on one side of the support.

[0008] As a preferred scheme of the hot extrusion hard alloy shunt mould die of the utility model, the driving unit comprises a motor arranged on one side of the support, a transmission shaft is penetrated in the support, the output end of the motor is fixedly connected with the transmission shaft, and the transmission shaft is fixedly connected with the upper mould frame at one end.

[0009] As a preferred scheme of the hot extrusion hard alloy split-flow die mold of the utility model, wherein: the upper die unit includes an upper die body threadedly connected to an upper die frame, three groups of die blocks are sequentially arranged on the upper die body, split-flow holes are arranged in the three groups of die blocks and the upper die body, false die bodies are arranged in the three groups of die blocks and the upper die body, and the three groups of die blocks, the upper die body and the false die bodies are fixedly connected through bolts.

[0010] As a preferred scheme of the hot extrusion hard alloy split-flow die mold of the utility model, wherein: the upper die unit includes an upper die body threadedly connected to an upper die frame, three groups of die blocks are sequentially arranged on the upper die body, split-flow holes are arranged in the three groups of die blocks and the upper die body, false die bodies are arranged in the three groups of die blocks and the upper die body, and the three groups of die blocks, the upper die body and the false die bodies are fixedly connected through bolts.

[0011] As a preferred scheme of the hot extrusion hard alloy split-flow die mold of the utility model, wherein: the upper die unit includes an upper die body threadedly connected to an upper die frame, three groups of die blocks are sequentially arranged on the upper die body, split-flow holes are arranged in the three groups of die blocks and the upper die body, false die bodies are arranged in the three groups of die blocks and the upper die body, and the three groups of die blocks, the upper die body and the false die bodies are fixedly connected through bolts.

[0012] The hot extrusion hard alloy split-flow die mold of the utility model has the following beneficial effects:

[0013] 1. By arranging two groups of lower dies on both sides of the support, arranging an upper die unit on one side of the lower die, arranging four groups of upper die pieces in the upper die unit, and arranging a driving unit on one side of the support, the driving unit including a motor, the driving end of the motor being provided with an upper die frame, the four groups of upper die pieces being arranged on the upper die frame, and the working positions of the four groups of upper die pieces being switchable through the motor, the two groups of upper die pieces can be in the working positions or the maintenance positions, the die can be continuously ejected, and the working efficiency is effectively improved.

[0014] 2. By sequentially dividing the upper die piece into an upper die body, a die block and a false die body, the length of the split-flow hole can be changed by increasing or reducing the number of die blocks, for materials with good fluidity, the hard alloy is more likely to pass through the split-flow hole and enter the forming cavity during the extrusion process, the length of the split-flow hole is appropriately shortened to reduce the flow resistance and improve the production efficiency, for materials with poor fluidity, the hard alloy is more likely to be blocked in the split-flow hole or flow unevenly during the extrusion process, the length of the split-flow hole is appropriately increased to provide more flow paths and time, so that the metal can more smoothly enter the forming cavity, in addition, the false die body can effectively prevent the side walls of the upper die body and the die block from being directly in contact with the hard alloy for extrusion, so that damage and deformation do not occur, and the service life of the split-flow die mold is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a hot extrusion cemented carbide flow divider die.

[0017] Figure 2 This is an exploded view of the overall structure of a hot extrusion cemented carbide flow divider die.

[0018] Figure 3 This is an exploded view of the drive unit and upper die unit in the overall structure of a hot extrusion cemented carbide flow divider die.

[0019] Figure 4 This is an exploded view of the upper die unit in the overall structure of a hot extrusion cemented carbide flow divider die.

[0020] Figure 5 for Figure 4 A magnified view of region A in the middle.

[0021] Figure 6 for Figure 4 A magnified view of region B in the middle.

[0022] Figure 7 This is an exploded view of the upper die unit in the overall structure of a hot extrusion cemented carbide flow divider die, from perspective two.

[0023] Figure 8 for Figure 7 A magnified view of region C in the middle.

[0024] Figure 9 for Figure 7 A magnified view of region D in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Support frame; 101. Disassembly platform;

[0027] 200. Drive unit; 201. Motor; 202. Drive shaft; 203. Upper mold frame; 2031. Corner rib;

[0028] 300. Lower mold;

[0029] 400. Upper mold unit; 401. Upper mold body; 402. Adding module; 4021. Card block; 4022. Card slot; 403. Dummy mold body; 4031. Slot; 4032. Dummy flow channel; 404. Flow channel. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] With reference to Figures 1-9 The utility model provides a kind of hot extrusion hard alloy split die mould, it includes support 100, two groups of lower mould 300 for extruding hard alloy are symmetrically equipped in the both sides of support 100, the side of lower mould 300 is equipped with the upper mould unit 400 for extruding hard alloy, the side of support 100 is further equipped with the drive unit 200 for switching upper mould unit 400 working position and maintenance position, the lower end of support 100 is threadedly connected with dismounting platform 101, for cooperation to the dismounting of upper mould unit 400;

[0032] Drive unit 200 includes motor 201 being equipped in the side of support 100, motor 201 has brake function, transmission shaft 202 is penetrated in support 100, the output end of motor 201 is fixedly connected with transmission shaft 202, one end of transmission shaft 202 is fixedly connected with upper mould frame 203, upper mould frame 203 is cross, and angle rib 2031 is equipped, for increasing the extrusion resistance of upper mould frame 203;

[0033] Upper mould unit 400 includes upper mould piece being equipped on upper mould frame 203, upper mould piece includes upper mould body 401 being threadedly connected on upper mould frame 203, three groups of increase module 402 are sequentially equipped on upper mould body 401, three groups of increase module 402 and the inside of upper mould body 401 are equipped with split hole 404, three groups of increase module 402 and upper mould body 401 are equipped with false mould body 403, three groups of increase module 402, upper mould body 401 and false mould body 403 are fixedly connected by bolt, the number of increase module 402 is decided according to actual hard alloy material, can be more than three, also can not be set;

[0034] Three groups of increase module 402 and upper mould body 401 are equipped with clamping groove 4022, three groups of increase module 402 are fixedly connected with clamping block 4021, the clamping block 4021 of increase module 402 located in the side of upper mould body 401 is inserted in the clamping groove 4022 in upper mould body 401, the clamping block 4021 of increase module 402 located in the middle is inserted in the clamping groove 4022 of increase module 402 located in the side of upper mould body 401, the clamping block 4021 of increase module 402 located in the outermost is inserted in the clamping groove 4022 in increase module 402 located in the middle, by the cooperation of clamping groove 4022 and clamping block 4021, the deflection of upper mould unit 400 after being extruded by hard alloy can be effectively avoided, to affect ejection, side wall is provided with insertion slot 4031, it is convenient to cooperate with the side wall of split hole 404 and insert into insertion slot 4031, the inside of false mould body 403 is provided with false split groove 4032, so that false split groove 4032 can be attached in the side wall of split hole 404, for protecting split hole 404, avoid its abrasion deformation under long-term extrusion, to effectively improve the life of split die mould;

[0035] In use, according to the material properties of the hard alloy to be extruded, the length of the flow hole 404 is increased or decreased by increasing or decreasing the number of the increasing modules 402 so as to meet the extrusion requirement. When the two groups of upper die sets in the working position need to be maintained under long-term extrusion work, the motor 201 is started to drive the upper die frame 203 to rotate, and the four groups of upper die sets are driven to rotate by the upper die frame 203. According to the program setting, the two groups of upper die sets in the working position are switched with the two groups of upper die sets in the maintenance position,

[0036] In addition, when the upper die set needs to be disassembled, the motor 201 is started to rotate the upper die set to be disassembled to the upper side of the disassembly platform 101, and the disassembly platform 101 is rotated downward to drive the upper die set to rotate downward and separate from the upper die frame 203. At this time, the disassembly platform 101 can play a role of bearing, providing convenience for disassembling the upper die set.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application. They should be covered in the scope of the claims of the present application.

Claims

1. A hot extrusion cemented carbide flow divider die, characterized in that: include, The bracket (100) has two sets of lower dies (300) symmetrically arranged on both sides for extruding cemented carbide. One side of the lower die (300) is provided with an upper die unit (400) for extruding cemented carbide. The bracket (100) is also provided with a drive unit (200) for switching the working position and maintenance position of the upper die unit (400).

2. The hot extrusion cemented carbide flow divider die as described in claim 1, characterized in that: The drive unit (200) includes a motor (201) disposed on one side of the bracket (100), a transmission shaft (202) passing through the bracket (100), the output end of the motor (201) being fixedly connected to the transmission shaft (202), and an upper mold frame (203) being fixedly connected to one end of the transmission shaft (202).

3. The hot extrusion cemented carbide flow divider die as described in claim 2, characterized in that: The upper mold unit (400) includes an upper mold component mounted on an upper mold frame (203). The upper mold component includes an upper mold body (401) threadedly connected to the upper mold frame (203). Three sets of expansion modules (402) are sequentially mounted on the upper mold body (401). The interior of the three sets of expansion modules (402) and the upper mold body (401) is provided with a diversion hole (404). A dummy mold body (403) is fitted inside the three sets of expansion modules (402) and the upper mold body (401). The three sets of expansion modules (402), the upper mold body (401) and the dummy mold body (403) are fixedly connected by bolts.

4. The hot extrusion cemented carbide flow divider die as described in claim 3, characterized in that: Each of the three sets of augmentation modules (402) and the upper mold body (401) is provided with a slot (4022), and each of the three sets of augmentation modules (402) is provided with a block (4021).

5. The hot extrusion cemented carbide flow divider die as described in claim 4, characterized in that: The sidewall of the dummy mold (403) is provided with a slot (4031), and the interior of the dummy mold (403) is provided with a dummy flow divider (4032).

6. The hot extrusion cemented carbide flow divider die as described in claim 5, characterized in that: The lower end of the bracket (100) is threadedly connected to a disassembly platform (101).

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