CN213701708U - Simple push plate guide pillar limiting combined device - Google Patents
Simple push plate guide pillar limiting combined device Download PDFInfo
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- CN213701708U CN213701708U CN202022214670.7U CN202022214670U CN213701708U CN 213701708 U CN213701708 U CN 213701708U CN 202022214670 U CN202022214670 U CN 202022214670U CN 213701708 U CN213701708 U CN 213701708U
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Abstract
The utility model belongs to the technical field of the mould is made, a simple and easy push pedal guide pillar spacing composite set is disclosed. The simple push plate guide post limiting combination device comprises a push plate guide post and a limiting block, wherein one end of the push plate guide post is in a limiting stage, and the section diameter of the limiting stage is smaller than that of the push plate guide post and is greater than or equal to 1/2 times of that of the push plate guide post; the limiting block is sleeved on the limiting table stage, and the height of the limiting block is smaller than that of the limiting table stage; the other end of the push plate guide pillar is provided with a limiting protruding section, and the diameter of the cross section of the limiting protruding section is larger than that of the cross section of the push plate guide pillar. The utility model can effectively ensure the precision of the assembly and the use process; meanwhile, the material, machining, assembly and labor cost are saved; the types and the number of the parts of the ejection mechanism are reduced.
Description
Technical Field
The utility model belongs to the technical field of the mould is made, concretely relates to simple and easy push pedal guide pillar spacing composite set.
Background
The die casting die design comprises 4 large modules of a cavity design, a core-pulling mechanism design, an ejection mechanism design and a waterway design. The ejection mechanism plays an especially important role in the production process of die castings. In high-pressure casting, a mechanism for safely and undamaged ejecting a cooled and solidified casting and a gating system from a mold is called a mold-releasing mechanism, also called an ejection mechanism or an ejection mechanism. In the high-pressure production process, after the injection action is finished, the casting is cooled and shaped in the die, the volume is shrunk to generate a packing force on the core, and when the core is pushed out of the die, the friction force generated by the packing force must be overcome. For a few castings without through holes, atmospheric pressure needs to be overcome during demolding and pushing. In particular, the ejection mechanism is a module that each set of die casting molds must have.
The ejection mechanism generally comprises seven main parts, namely a push plate, an ejector pin, a push plate guide post, a push plate guide sleeve, a front limiting block and a rear limiting block; the working process comprises two actions of ejection and resetting. During the ejection action, after receiving the ejection signal of the die casting machine, the push rod drives the push plate, the ejector plate and the ejector rod to move forwards and stop after moving to a certain distance. During the resetting action, the movable die continuously moves forwards in the die closing process, the fixed die can provide a reaction force for the reset rod when the fixed die contacts the reset rod to the completion of the die closing action, and the fixed die drives the push plate, the ejector plate and the ejector pin to restore the original position together.
Meanwhile, for safety, 3-4 limiting blocks, namely front limiting blocks, are usually arranged on the outer side of the movable template (the inner side of the ejector plate), so that the mold can be protected under the abnormal state of equipment, and the production continuity is guaranteed. 3-4 limiting blocks, namely rear limiting blocks, with the same functions as the front limiting blocks are arranged on the outer side of the push plate (the inner side of the sealing bottom plate). However, conventionally arranged limiting blocks or push plate guide pillars cause more parts of the ejection mechanism and complex assembly, and abrasion of the parts is easily caused to influence the production efficiency of castings.
Disclosure of Invention
An object of the utility model is to provide a simple and easy push pedal guide pillar spacing composite set for solve the more and assembly complicacy of current ejection mechanism part among the prior art, cause the wearing and tearing of part to influence foundry goods production efficiency scheduling problem easily.
In order to realize the task, the utility model discloses a following technical scheme:
a simple push plate guide post limiting combination device comprises a push plate guide post and a limiting block, wherein one end of the push plate guide post is in a limiting stage, and the diameter of the section of the limiting stage is smaller than that of the section of the push plate guide post and is greater than or equal to 1/2 times of that of the section of the push plate guide post;
the limiting block is sleeved on the limiting table stage, and the axial height of the limiting block is smaller than that of the limiting table stage;
the other end of the push plate guide pillar is provided with a limiting protruding section, and the diameter of the cross section of the limiting protruding section is larger than that of the cross section of the push plate guide pillar.
Furthermore, the limit table is embedded into the sealing bottom plate in a stage, and the axial height of the limit table in the stage is 2 to 2.5 times of the diameter of the section of the push plate guide column.
Furthermore, the limiting convex section is a flange.
Furthermore, the axial height of the limiting convex section is larger than or equal to the safe ejection distance of the casting.
An ejection mechanism comprises a pull rod, a pull rod connector, a reset rod, a movable mold core, a seal plate, a push plate, an ejector plate, a cooling water pipe, a movable mold frame, a fixed mold core and an ejector pin, wherein the pull rod connector is arranged on the pull rod;
the push plate guide pillar is arranged between the sealing bottom plate and the movable mold frame, the limiting table stage is arranged between the sealing bottom plate and the push plate, the limiting block is sleeved on the limiting table stage, and the limiting protruding section is arranged between the ejector plate and the movable mold frame.
Compared with the prior art, the utility model has the following technical characteristics:
1. the front limit block is combined with the front limit block, so that the lower end of the front limit block is changed into a flange structure, and the precision of the front limit block in the assembling and using processes can be effectively ensured; meanwhile, the material, machining, assembly and labor cost are saved; the types and the number of parts of the ejection mechanism are reduced;
2. the design of adding steps at the top end can lead the rear limiting block to be directly sleeved on the rear limiting block, thus simplifying the assembly process and reducing the labor hour;
3. the guide pillar is lengthened to be assembled with the sealing bottom plate, so that the verticality of the guide pillar with the sealing bottom plate and the movable mold frame in the using process can be effectively guaranteed, the abrasion of the guide pillar with the guide sleeve is reduced, and the service life of the guide pillar is prolonged.
Drawings
FIG. 1 is a multifunctional push plate guide pillar with a limiting block;
FIG. 2 shows a structure of a guide post of a push plate;
FIG. 3 is a schematic diagram of the ejection and reset process;
FIG. 4 is a schematic diagram of the function of a conventional front and rear limiting block;
fig. 5 is a schematic diagram of the present invention.
The reference numbers in the figures represent: the device comprises a pull rod 1, a pull rod connector 2, a pull rod connector 3, a cushion block 4, a push plate guide sleeve 5, a traditional push plate guide column 6, a reset rod 7, a movable mold core 8, a sealing bottom plate 9, a push plate 10, an ejector plate 11, a cooling water pipe 11, a movable mold frame 12, a fixed mold frame 13, a fixed mold core 14, a rear limiting block 15, a front limiting block 16, an ejector pin 17, a casting 18 and a simple push plate guide column limiting combined device 19;
20-push plate guide column, 21-limiting block, 22-limiting table stage, and 23-limiting protruding section.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means that the terms are defined with reference to the drawing plane of the corresponding drawing, and "inner" and "outer" mean that the terms are inner and outer relative to the outline of the corresponding part.
Example 1
The embodiment discloses a simple push plate guide pillar limiting combination device, which comprises a push plate guide pillar 20 and a limiting block 21, wherein one end of the push plate guide pillar 20 is a limiting stage 22, and the section diameter of the limiting stage 22 is smaller than that of the push plate guide pillar 20 and is greater than or equal to 1/2 times of that of the push plate guide pillar 1; the assembly process can be simplified, and the labor hour can be reduced; except for the step, the use of other bolt structures is not as reliable as the step structure in the aspects of assembly coaxiality, use strength and the like, so the bolt structure is not designed and is not suggested to be used, and the step structure is selected;
the limiting block 21 is sleeved on the limiting table stage 22, and the axial height of the limiting block 21 is smaller than that of the limiting table stage 22;
the other end of the push plate guide pillar 20 is provided with a limiting convex section 23, and the diameter of the section of the limiting convex section 23 is larger than that of the section of the push plate guide pillar 20.
Specifically, the limit table stage 22 is embedded in the back cover plate, and the axial height of the limit table stage 22 is 2 to 2.5 times of the section diameter of the push plate guide post 20. The guide pillar is lengthened to be assembled with the sealing bottom plate, so that the verticality of the guide pillar with the sealing bottom plate and the movable mold frame in the using process can be effectively guaranteed, the abrasion of the guide pillar with the guide sleeve is reduced, and the service life of the guide pillar is prolonged.
Specifically, the limiting convex section 23 is an annular cylinder or a flange. The structure of the limiting convex section 23 replaces a front limiting block in the existing scheme to effectively guarantee the precision of the limiting block in the assembling and using processes, meanwhile, the material, machining, assembling and labor cost are saved, and the part types and the number of the ejection mechanisms are reduced.
Specifically, the axial height of the limiting convex section 23 is greater than or equal to the safe ejection distance of the casting. The device plays a limiting role in an abnormal state, and prevents the ejector plate from moving forwards to extrude the cooling water pipe 11, so that the collision of the die is avoided.
The embodiment also comprises an ejection mechanism which comprises a pull rod 1, a pull rod connector 2, a reset rod 6, a movable mold core 7, a back cover plate 8, a push plate 9, an ejector plate 10, a cooling water pipe 11, a movable mold frame 12, a fixed mold frame 13, a fixed mold core 14, an ejector 17 and a simple push plate guide post limiting combination device 19; the pull rod connector 2 is arranged on a pull rod 1, the pull rod 1 is arranged between the back cover plate 8 and the push plate 9, the reset rod 6 sequentially penetrates through the ejector plate 10, the movable mold core 7 and the fixed mold core 14 and then is arranged between the push plate 9 and the fixed mold frame 13, the cooling water pipe 11 is arranged on the movable mold frame 12, and the ejector 17 is abutted to the ejector plate 10;
the ejector guide post 20 is arranged between the back cover plate 8 and the movable mold frame 12, the limiting table stage 22 is arranged between the back cover plate 8 and the ejector 9, the limiting block 21 is sleeved on the limiting table stage 22, and the limiting protruding section 23 is arranged between the ejector plate 10 and the movable mold frame 12.
Fig. 3 shows a schematic structural diagram of a conventional ejection mechanism, which is used for safely ejecting a cooled and solidified casting and a gating system from a mold without damage, and includes a pull rod 1, a pull rod connector 2, a cushion block 3, a push plate guide sleeve 4, a conventional push plate guide post 5, a reset rod 6, a movable mold core 7, a back cover plate 8, a push plate 9, an ejector plate 10, a cooling water pipe 11, a movable mold frame 12, a fixed mold frame 13, a fixed mold core 14, a rear stopper 15, a front stopper 16, an ejector pin 17, and a casting 18. Pull rod connector 2 sets up on pull rod 1, cushion 3 and pull rod 1 all set up between closing bottom plate 8 and push pedal 9, traditional push pedal guide pillar 5 sets up in push pedal guide pin bushing 4, push pedal guide pin bushing 4 passes push pedal 9 and thimble board 10 and is connected movable mould frame 12, reset lever 6 passes thimble board 10, movable mould core 7 and fixed mould core 14 in proper order after sets up between push pedal 9 and fixed mould frame 13, condenser tube 11 sets up on movable mould frame 12, the other end top is on thimble board 10 on foundry goods 18 is pushed up to thimble 17 one end, foundry goods 18 sets up the bottom surface at ejection mechanism.
The utility model discloses an operating condition as follows:
during the ejection process of the casting: the oil cylinder drives the pull rod 1 to move forwards, so that the push plate 9, the ejector plate 10, the ejector 17 and the reset rod 6 are pushed to move forwards through the pull rod adapter 2, and the ejector 17 pushes the casting 18 out of the cavity of the movable mold core 7;
the ejection stroke with a certain distance can be set in the die-casting procedure, so that the collision of the die is avoided; meanwhile, the limiting bulge section 3 plays a role in limiting in an abnormal state of the equipment, and prevents the ejector plate 10 from extruding the cooling water pipe 11 in a forward movement process;
the setting process of the ejection stroke comprises the following steps: an operator can manually set the ejector rod in an ejection state under a die opening state so as to obtain the maximum ejection stroke and further obtain the proper safe ejection stroke, and the process is completely braked by the limiting convex section 3 (the front limiting block 16 in the traditional scheme is replaced);
the thimble resetting process: the oil cylinder drives the pull rod 1 to move backwards, and then the push plate 9, the ejector plate 10, the ejector 17 and the reset rod 6 are pulled to move backwards through the pull rod adapter 2 until the push plate 9 touches a limiting block (a rear limiting block 15 of the traditional scheme is replaced) arranged on the limiting table stage 22 and stops;
the reset lever acts: because the phenomenon of clamping stagnation easily appears in the thimble reset process, lead to the thimble not reset completely. At this time, in the process of closing the mold, the movable mold core 14 gradually approaches the fixed mold core 7, and the clamped reset rod 6, the ejector plate 10, the ejector plate 9 and the ejector pins 17 are pushed to move backwards to return to the zero position. So as to ensure that the casting can not be wasted due to the concave thimble mark at the beginning of the next cycle.
Example 2
On the lid mould behind the retarber, the preparation and the application only take spacing push pedal guide pillar behind, carry out full-automatic batch production and verify its stability, design rationality. Meets the requirements of mechanical property and production. Saving cost, having considerable economic benefit and having popularization significance.
Example 3
In the embodiment, on the retarder rear cover die, the push plate guide pillar only provided with the top end step is manufactured and applied, the rear limiting block is assembled on the rear limiting block, full-automatic batch production is carried out, the stability of the retarder rear cover die is verified, and the mechanical performance and the production requirements are met. Saving cost, having considerable economic benefit and having popularization significance.
Claims (4)
1. The simple push plate guide post limiting combination device is characterized by comprising a push plate guide post (20) and a limiting block (21), wherein one end of the push plate guide post (20) is provided with a limiting stage (22), and the section diameter of the limiting stage (22) is smaller than that of the push plate guide post (20) and is greater than or equal to 1/2 times of that of the push plate guide post (20);
the limiting block (21) is sleeved on the limiting table stage (22), and the axial height of the limiting block (21) is smaller than that of the limiting table stage (22);
the other end of the push plate guide pillar (20) is provided with a limiting convex section (23), and the diameter of the section of the limiting convex section (23) is larger than that of the section of the push plate guide pillar (20).
2. A simple push plate guide post stop assembly according to claim 1, characterized in that the stop stage (22) is embedded in the back cover plate and the axial height of the stop stage (22) is 2 to 2.5 times the cross-sectional diameter of the push plate guide post (20).
3. The simple push plate guide post limiting combination device as claimed in claim 1, wherein the limiting convex section (23) is a flange.
4. The simple push plate guide post limiting combination device as claimed in claim 1, wherein the axial height of the limiting convex section (23) is greater than or equal to the safe ejection distance of the casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022214670.7U CN213701708U (en) | 2020-09-30 | 2020-09-30 | Simple push plate guide pillar limiting combined device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022214670.7U CN213701708U (en) | 2020-09-30 | 2020-09-30 | Simple push plate guide pillar limiting combined device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213701708U true CN213701708U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022214670.7U Active CN213701708U (en) | 2020-09-30 | 2020-09-30 | Simple push plate guide pillar limiting combined device |
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|---|---|
| CN (1) | CN213701708U (en) |
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2020
- 2020-09-30 CN CN202022214670.7U patent/CN213701708U/en active Active
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