CN107855469B - Method and tool for disassembling and replacing mold vent plug - Google Patents
Method and tool for disassembling and replacing mold vent plug Download PDFInfo
- Publication number
- CN107855469B CN107855469B CN201711291548.6A CN201711291548A CN107855469B CN 107855469 B CN107855469 B CN 107855469B CN 201711291548 A CN201711291548 A CN 201711291548A CN 107855469 B CN107855469 B CN 107855469B
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- positioning seat
- vent plug
- tapping screw
- self
- threaded
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000010079 rubber tapping Methods 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims description 36
- 238000007906 compression Methods 0.000 claims description 36
- 230000007704 transition Effects 0.000 claims description 5
- 229910001208 Crucible steel Inorganic materials 0.000 abstract description 9
- 238000005266 casting Methods 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a method for disassembling and replacing a mold vent plug, which comprises the following steps: firstly, a positioning seat through which a screw rod part of a self-tapping screw smoothly passes is arranged, and a pressing mechanism is arranged in the positioning seat to press and fix the self-tapping screw; then the positioning seat is rotated to screw the tapping screw into the vent plug on the die; finally, the self-tapping screw and the vent plug can be pulled out together by pulling the positioning seat outwards. The invention also discloses a tool for disassembling and replacing the mold vent plug. The disassembly and replacement scheme of the invention is convenient to operate, convenient to disassemble and replace, high in disassembly speed and high in efficiency, and solves the problems that the cast steel vent plug and the copper vent plug of the exterior mold and the core box mold of the existing casting enterprises are difficult to disassemble and replace, and particularly the cast steel vent plug is more difficult to disassemble and replace, and the time is long, the efficiency is low and the like.
Description
Technical Field
The invention relates to the technical field of casting production, in particular to a method and a tool for disassembling and replacing a mold vent plug.
Background
At present, the cast steel vent plugs and the copper vent plugs of the exterior mold and the core box mold of a casting enterprise are difficult to detach and replace, particularly the cast steel vent plugs are more difficult to detach and replace, sometimes, one cast steel vent plug is detached for more than 10 minutes, and the copper vent plug is detached for one or two minutes, so that the efficiency is low. The common method comprises the following steps: the exhaust plug is chiseled by a chisel in a straight shape, then the chisel is put into the exhaust plug hole, and the rest part of the exhaust plug is pried out by taking the edge of the exhaust plug hole as a fulcrum. However, when the edge of the exhaust plug hole is used as a fulcrum, the edge of the exhaust plug hole is crushed, so that the produced sand core has protruding meat, the workload of the core repairing process is increased, the hidden danger of the quality of the die exists, the sand core is uneven, the appearance quality of the casting is poor, and even the casting is scrapped seriously. Meanwhile, the method has the defects of long vent plug disassembly and replacement time, low efficiency, inconvenient operation and the like.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and one of the purposes of the invention is to provide a die vent plug disassembling and replacing method which is convenient to operate, convenient to disassemble and replace, high in vent plug disassembling speed and high in efficiency.
The second object of the present invention is to provide a tool for replacing the vent plug of a mold.
In order to achieve the above object, the present invention provides a method for replacing a vent plug of a mold, comprising the steps of: firstly, a positioning seat through which a screw rod part of a self-tapping screw smoothly passes is arranged, and a pressing mechanism is arranged in the positioning seat to press and fix the self-tapping screw; then the positioning seat is rotated to screw the tapping screw into the vent plug on the die; finally, the self-tapping screw and the vent plug can be pulled out together by pulling the positioning seat outwards.
Further, the pressing mechanism is a threaded pressing rod arranged in the positioning seat, and a locking structure is arranged on the threaded pressing rod to lock the pressing mechanism and the positioning seat.
Furthermore, the inside of the positioning seat is in a stepped hole shape with a small front part and a big rear part, the front end of the positioning seat is provided with a positioning hole matched with the screw rod part of the self-tapping screw, and the rear end of the positioning seat is provided with a threaded hole matched with the threaded compression bar; the locking structure is a locking nut sleeved on the threaded compression bar.
Furthermore, the threaded compression bar is provided with an operating handle, and handles are arranged on the side parts of the positioning seat and the locking nut in a protruding mode.
In order to achieve the second purpose, the die vent plug disassembling and replacing tool comprises a positioning seat, wherein a self-tapping screw is arranged in the positioning seat in a penetrating mode, a positioning hole matched with a screw rod portion of the self-tapping screw is formed in the positioning seat, and a pressing mechanism for pressing the self-tapping screw is arranged in the positioning seat.
Further, the compressing mechanism comprises a threaded compression rod arranged in the positioning seat, and an anti-loosening structure for locking the threaded compression rod with the positioning seat is arranged on the threaded compression rod.
As a further improvement, the inside of the positioning seat is a stepped hole cavity with small front and big back, the front end of the inner cavity of the positioning seat is a positioning hole matched with the screw rod part of the self-tapping screw, and the rear end of the inner cavity of the positioning seat is provided with a threaded hole matched with the threaded compression rod; the locking structure is a locking nut sleeved on the threaded compression bar.
Furthermore, the threaded compression bar is provided with an operating handle, and handles are arranged on the side parts of the positioning seat and the locking nut in a protruding mode.
Furthermore, handles are arranged on the positioning seat in a protruding mode towards two sides, the threaded holes coincide with the central axes of the positioning holes, and the positioning seat is of a sleeve-shaped structure in axial symmetry.
Furthermore, a transition structure is arranged between the threaded hole and the positioning hole.
Advantageous effects
Compared with the prior art, the mold vent plug disassembling and replacing method and the tool have the following beneficial effects: the disassembly and replacement scheme of the invention is convenient to operate, convenient to disassemble and replace, high in disassembly speed and high in efficiency, and solves the problems that the cast steel vent plugs and copper vent plugs of the exterior mold and the core box mold of the existing casting enterprises are difficult to disassemble and replace, particularly the cast steel vent plugs are more difficult to disassemble, the time is long, the efficiency is low, and the like, and the production cost is increased; easy manufacture and operation, low manufacturing cost, reduced labor intensity and high working efficiency.
Drawings
FIG. 1 is a cross-sectional view of a mold vent plug removal tool of the present invention;
fig. 2 is an enlarged view of the structure of the positioning seat in the present invention.
In the figure: 1. a threaded compression bar; 2. a positioning seat; 3. positioning holes; 4. self-tapping screw; 5. a vent plug; 6. a mold; 7. a lock nut; 8. an operation handle; 9. a threaded hole; 10. a transition structure.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
The specific embodiments of the present invention are as follows: as shown in fig. 1-2, a method for replacing a vent plug of a mold comprises the following steps: firstly, a positioning seat 2 through which a screw rod part of a tapping screw 4 smoothly passes is arranged, and a pressing mechanism is arranged in the positioning seat 2 to press and fix the tapping screw 4; then the positioning seat 2 is rotated to screw the tapping screw 4 into the vent plug 5 on the die 6; finally, the self-tapping screw 4 and the vent plug 5 can be pulled out together by pulling the positioning seat 2 outwards. The self-tapping screw 4 is tapped into the vent plug 5, so that the self-tapping screw 4 and the vent plug 5 are firmly connected, the locating seat 2 is pulled back by using equipment or manually, the vent plug 5 is pulled out of the mounting hole of the die 6 together by the self-tapping screw 4, the self-tapping screw 4 is not contacted with the die 6, the die is not scratched or damaged, and the vent plug 5 is convenient to detach and replace by a detaching tool combined by the locating seat 2 and the self-tapping screw 4, so that the vent plug 5 is fast in detaching speed and high in efficiency, and the problems that the cast steel vent plug and the copper vent plug of the exterior die and the core box die of the casting enterprise are difficult to detach and replace at present, particularly the cast steel vent plug is difficult to detach, the time is long, the efficiency is low, and the like, and the production cost is increased are solved.
In the disassembly method, the pressing mechanism is a threaded compression rod 1 arranged in the positioning seat 2, a locking structure is arranged on the threaded compression rod 1 to lock the threaded compression rod 1 with the positioning seat 2, the threaded compression rod 1 is in threaded connection with the positioning seat 2, the self-tapping screw 4 is prevented from rotating relatively with the positioning seat 2, the self-tapping screw 4 is ensured to smoothly attack the vent plug 5 through a screw thread, the locking structure is arranged to lock the threaded compression rod 1 with the positioning seat 2, the loosening of the threaded compression rod 1 is prevented from influencing the disassembly work, the structure of the pressing mechanism is reasonable, the pressing is reliable, the manufacturing and the operation are easy, and the manufacturing cost is low.
The inside of the positioning seat 2 is in a stepped hole shape with small front and large back, the front end of the positioning seat 2 is provided with a positioning hole 3 matched with the screw rod part of the self-tapping screw 4, the rear end of the positioning seat 2 is provided with a threaded hole 9 matched with the threaded compression rod 1, the front end surface of the threaded compression rod 1 is extruded at the screw head of the self-tapping screw 4, the axial compression is carried out, the contact area is large, and the firm connection between the self-tapping screw 4 and the positioning seat 2 is ensured, and the relative movement can not occur; the inside of the positioning seat 2 is provided with two ends which are communicated, so that the manufacturing is convenient; the locking structure is a locking nut 7 sleeved on the threaded compression bar 1, and the locking structure is simple in structure, convenient to manufacture, easy to obtain, low in maintenance cost and reliable in locking.
The threaded compression bar 1 may also be provided to be pressed against the side of the tapping screw 4, as required.
The screw thread compression bar 1 is provided with an operating handle 8, handles are arranged on the side parts of the positioning seat 2 and the locking nut 7 in a protruding mode, the screw thread compression bar 1 is T-shaped, operation is convenient, and the exhaust plug 5 is quickly detached; when the exhaust plug 5 is detached, the positioning seat can be pulled back or knocked back through the handle on the positioning seat 2, so that the stress is convenient, the labor intensity is reduced, and the working efficiency is improved.
The specific operation of the disassembling and replacing method is as follows:
assembling tools: the self-tapping screw 4 is placed into the positioning hole 3 from the opening of the positioning seat 2, the head of the self-tapping screw 4 is tightly pressed by tightening the threaded compression rod 1, and finally, the locking nut 7 is tightly pressed on the positioning seat 2 to prevent the tool from loosening the self-tapping screw 4 in the use process.
And (3) replacing the exhaust plug 2: firstly, drilling a small hole in the middle of a vent plug 2 to be replaced; then vertically placing the end of the tapping screw 4 of the replacing tool on the small hole of the vent plug 2 to be disassembled, and screwing the tapping screw 4 into the vent plug 2 by rotating clockwise for two times; then, the side handle of the tool is knocked upwards by a hammer, and the vent plug 2 to be replaced is taken out by the tapping screw 4; finally, the vent plug 2 is clamped by pliers, the tool handle is turned back, and the vent plug 2 and the tapping screw 4 are unscrewed. And a small hole is drilled in the middle of the vent plug 2 to be detached and replaced, the vent plug 2 is replaced, a circulation work is completed, only 20 seconds is needed, the speed block is detached and replaced, the operation is convenient and flexible, and the efficiency is high.
The utility model provides a mould vent plug tear tool open and trade, includes a positioning seat 2, wears to be equipped with a self-tapping screw 4 in the positioning seat 2, is equipped with the locating hole 3 with the screw rod portion looks adaptation of self-tapping screw 4 in the positioning seat 2, is equipped with the hold-down mechanism with self-tapping screw 4 compress tightly in the positioning seat 2.
In this embodiment, the pressing mechanism includes a threaded compression bar 1 disposed in a positioning seat 2, and an anti-loosening structure for locking the threaded compression bar 1 with the positioning seat 2 is disposed on the threaded compression bar 1.
In the embodiment, the inside of the positioning seat 2 is a stepped hole cavity with small front and big back, the front end of the inner cavity of the positioning seat 2 is a positioning hole 3 matched with the screw rod part of the tapping screw 4, and the rear end of the inner cavity of the positioning seat 2 is provided with a threaded hole 9 matched with the threaded compression bar 1; the locking structure is a locking nut 7 sleeved on the threaded compression bar 1.
In this embodiment, the threaded compression bar 1 is provided with an operating handle 8, and the side portions of the positioning seat 2 and the locking nut 7 are provided with handles in a protruding manner.
In this embodiment, the positioning seat 2 is provided with handles protruding to two sides, the threaded hole 9 coincides with the central axis of the positioning hole 3, the positioning seat 2 is of a sleeve-shaped structure with axisymmetry, is of a symmetrical structure, is convenient to operate, and is beneficial to stress balance. A transition structure 10 is arranged between the threaded hole 9 and the positioning hole 3, the transition structure 10 is a conical surface structure arranged at the joint of the threaded hole 9 and the positioning hole 3, is adaptive to the conical structure on the self-tapping screw 4, is used for positioning the self-tapping screw 4, ensures that the self-tapping screw 4 is vertically arranged, and is convenient for disassembling and replacing the exhaust plug 2.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (4)
1. The method for replacing the vent plug of the die is characterized by comprising the following steps of: firstly, a positioning seat (2) through which a screw rod part of a self-tapping screw (4) smoothly passes is arranged, and a pressing mechanism is arranged in the positioning seat (2) to press and fix the self-tapping screw (4); then the positioning seat (2) is rotated to screw the self-tapping screw (4) into the vent plug (5) on the die (6); finally, the self-tapping screw (4) and the vent plug (5) can be pulled out together by pulling the positioning seat (2) outwards; the compressing mechanism is a threaded compression bar (1) arranged in a positioning seat (2), a locking structure is arranged on the threaded compression bar (1) to lock the threaded compression bar with the positioning seat (2), the inside of the positioning seat (2) is in a stepped hole shape with a small front part and a big back part, a positioning hole (3) matched with a screw rod part of a self-tapping screw (4) is arranged at the front end of the positioning seat (2), and a threaded hole (9) matched with the threaded compression bar (1) is arranged at the rear end of the positioning seat (2); the anti-loose structure is a locking nut (7) sleeved on the threaded compression bar (1).
2. The method for replacing the vent plug of the die according to claim 1, wherein the threaded compression bar (1) is provided with an operating handle (8), and handles are arranged on the side parts of the positioning seat (2) and the locking nut (7) in a protruding mode.
3. The method for replacing the vent plug of the die according to claim 1, wherein handles are convexly arranged on the positioning seat (2) towards two sides, the threaded holes (9) are coincident with the central axis of the positioning holes (3), and the positioning seat (2) is of an axisymmetric sleeve-shaped structure.
4. A method of replacing a mould vent plug according to claim 3, wherein a transition structure (10) is provided between the threaded bore (9) and the locating bore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711291548.6A CN107855469B (en) | 2017-12-08 | 2017-12-08 | Method and tool for disassembling and replacing mold vent plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711291548.6A CN107855469B (en) | 2017-12-08 | 2017-12-08 | Method and tool for disassembling and replacing mold vent plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107855469A CN107855469A (en) | 2018-03-30 |
| CN107855469B true CN107855469B (en) | 2023-10-27 |
Family
ID=61705217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711291548.6A Active CN107855469B (en) | 2017-12-08 | 2017-12-08 | Method and tool for disassembling and replacing mold vent plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107855469B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014777B (en) * | 2019-11-24 | 2021-03-19 | 黄思忠 | Self-drilling screw drill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202346722U (en) * | 2011-12-12 | 2012-07-25 | 吕衍荣 | Hand-press type pneumatic cork puller |
| CN202725984U (en) * | 2012-08-28 | 2013-02-13 | 天津久增金属有限公司 | Special device for demounting loose piece in cast sand core or air release plug of hot box |
| CN202785567U (en) * | 2012-09-29 | 2013-03-13 | 郭云达 | Bottle opener |
| CN104588578A (en) * | 2014-12-22 | 2015-05-06 | 重庆长安汽车股份有限公司 | Exhaust block and exhaust structure for deep-cavity part of core-making mold of hot-core box |
| CN205571358U (en) * | 2016-05-05 | 2016-09-14 | 广西玉柴机器股份有限公司 | Copper bar air lock instrument of removing of non -damaging exhaust consent |
| CN207592725U (en) * | 2017-12-08 | 2018-07-10 | 广西玉柴机器股份有限公司 | A kind of Mold air vent plug changes tool |
-
2017
- 2017-12-08 CN CN201711291548.6A patent/CN107855469B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202346722U (en) * | 2011-12-12 | 2012-07-25 | 吕衍荣 | Hand-press type pneumatic cork puller |
| CN202725984U (en) * | 2012-08-28 | 2013-02-13 | 天津久增金属有限公司 | Special device for demounting loose piece in cast sand core or air release plug of hot box |
| CN202785567U (en) * | 2012-09-29 | 2013-03-13 | 郭云达 | Bottle opener |
| CN104588578A (en) * | 2014-12-22 | 2015-05-06 | 重庆长安汽车股份有限公司 | Exhaust block and exhaust structure for deep-cavity part of core-making mold of hot-core box |
| CN205571358U (en) * | 2016-05-05 | 2016-09-14 | 广西玉柴机器股份有限公司 | Copper bar air lock instrument of removing of non -damaging exhaust consent |
| CN207592725U (en) * | 2017-12-08 | 2018-07-10 | 广西玉柴机器股份有限公司 | A kind of Mold air vent plug changes tool |
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| Publication number | Publication date |
|---|---|
| CN107855469A (en) | 2018-03-30 |
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