CN112810093A - Toggle rod type injection molding machine mould clamping mechanism - Google Patents
Toggle rod type injection molding machine mould clamping mechanism Download PDFInfo
- Publication number
- CN112810093A CN112810093A CN202110190622.5A CN202110190622A CN112810093A CN 112810093 A CN112810093 A CN 112810093A CN 202110190622 A CN202110190622 A CN 202110190622A CN 112810093 A CN112810093 A CN 112810093A
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- CN
- China
- Prior art keywords
- guide sleeve
- moving guide
- die
- injection molding
- molding machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 41
- 238000001746 injection moulding Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010974 bronze Substances 0.000 claims abstract description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/83—Lubricating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a toggle rod type injection molding machine die-closing mechanism which comprises a die-moving guide sleeve on the basis of the existing toggle rod type injection molding machine die-closing mechanism, wherein the die-moving guide sleeve comprises a guide sleeve body and a flange, the die-moving guide sleeve is made of a steel-clad copper material, and the inner surface of the guide sleeve is in a structural form of a concentric groove and a spiral groove. The die-moving guide sleeve body is of a cylindrical structure, the flange is arranged on the outer side of one end of the guide sleeve body, and when the die-moving guide sleeve body is matched with the movable die plate, the flange is higher than an outer hole of the body by 3-4mm in the radial direction, so that the material consumption is reduced, the cost is reduced, and the waste during processing is avoided; the outer layer of the mold moving guide sleeve is made of a steel ladle copper material of tin bronze on the inner wall of No. 20 carbon structural steel, and the steel ladle copper structure improves the wear resistance; compared with the conventional die moving guide sleeve with a single concentric groove structure, the structural form of the concentric groove and the spiral groove can improve the guide effect on lubricating oil, so that the lubricating oil is more uniformly distributed in the circumferential direction of the pull rod and is more sufficient to lubricate, the wear resistance of a moving part is improved, the wear is reduced, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of high polymer material machinery, in particular to a toggle rod type injection molding machine mould closing mechanism.
Background
When the movable mould plate of the injection moulding machine does mould opening and closing actions, reciprocating linear motion needs to be carried out on the pull rod. If the phenomenon of insufficient lubrication occurs, the die-shifting guide sleeve can generate hard friction with the pull rod, the chromium coating on the surface of the pull rod is abraded slightly, and the pull rod is broken seriously, so that the reasonable and effective die-shifting guide sleeve is very important. The mold moving guide sleeve and the movable mold plate pull rod hole are in interference fit, the mold moving guide sleeve and the movable mold plate pull rod hole are arranged in the movable mold plate pull rod hole through pre-freezing, the mold moving guide sleeve is fixed in the movable mold plate pull rod hole through a certain interference magnitude, and a thin oil lubricating system is matched to reduce linear motion friction resistance. However, the existing mold-moving guide sleeve is single in material and poor in wear resistance, the concentric grooves are only formed in the inner surface of the guide sleeve body, so that lubricating oil cannot fully lubricate the guide sleeve and a contact surface of a pull rod in the circumferential direction of the pull rod, the friction resistance is large in the linear motion process, and the phenomena of abrasion and breakage of the surface of the pull rod are difficult to avoid.
The mold clamping mechanism is a main part of the injection molding machine, and a machine with higher performance is required for transformation and upgrading; in the face of ever-upgrading market demands, equipment is required to have wide processing and manufacturing capabilities and lower maintenance cost.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a toggle rod type injection molding machine mold clamping mechanism, so that the injection molding machine has higher performance and lower maintenance cost.
The technical solution provided by the invention for solving the problems is as follows: toggle link formula injection molding machine locking mechanism, except that preceding template, movable mould board, back template, toggle link mechanism and four pull rods that current toggle link formula injection molding machine locking mechanism contained, toggle link formula injection molding machine locking mechanism still include a mould guide sleeve that moves, move the mould guide sleeve and include uide bushing body and flange, move the mould uide bushing body and be cylindric structure, the flange setting is in the outside of uide bushing body one end, moves the mould uide bushing and adopts the ladle copper material, and the uide bushing internal surface adopts the structural style of concentric groove + helicla flute. The pull rod penetrates through the annular body of the mold moving guide sleeve, and the pull rod can do reciprocating linear motion relative to the body. The axial length of the die-moving guide sleeve is eighty-five to one hundred percent of the diameter of the pull rod under the condition of meeting the guide effect and not influencing the stroke of the movable die plate, and the guide sleeves are arranged on the front side and the rear side of the movable die plate, and are eight in total.
According to the mold clamping mechanism of the toggle rod type injection molding machine, the mold moving guide sleeve comprises the guide sleeve body and the flange, on the basis of meeting the positioning function, the cost is reduced for reducing consumables, waste is avoided during steel clad copper casting processing, and when the mold moving guide sleeve is matched with a movable mold plate, the diameter of the flange is only 3-4mm higher than the outer diameter of the mold moving guide sleeve body.
Compared with the existing single No. 20 carbon structural steel material of the mold-moving guide sleeve, the mold-moving guide sleeve has the advantages that the outer layer is made of the No. 20 carbon structural steel, the inner wall is made of the steel ladle copper material of tin bronze (ZQSn-6-6-3), the radial thickness of the annular body of the guide sleeve is ten percent of the diameter of the pull rod, the thickness of the inner wall is 2.0-2.3mm, and the outer layer and the inner wall are combined together through casting, so that the size ensures the processability, the wear resistance requirement is met, the mold-closing mechanism is easy to deform during processing, and the cost is high due to the use of too thick metal materials.
Compared with the single concentric groove structure form of the existing mold-moving guide sleeve, the mold-moving guide sleeve adopts the structure form of the concentric groove and the spiral groove, the two ends of the mold-moving guide sleeve are concentric grooves, namely annular grooves, the spiral groove with the same rotation direction is arranged in the middle of the mold-moving guide sleeve, the mold-moving guide sleeves with different lengths are provided, the number of turns of the spiral groove is two or three, and the pitch of the spiral groove is determined according to the length of the mold-moving guide sleeve and the number of turns of the spiral groove.
By adopting the structure, compared with the prior art, the invention has the following advantages:
1. when the die-moving guide sleeve flange is matched with the movable template, compared with the condition that the diameter of the existing die-moving guide sleeve flange needs to be 6-7mm higher than the pull rod hole, the diameter of the flange only needs to be 3-4mm higher than the pull rod hole, so that the material consumption is reduced, the cost is reduced, and the waste of the steel ladle copper during casting is avoided.
2. Compared with the single 20 # carbon structural steel material of the existing mold-moving guide sleeve, the mold-moving guide sleeve made of the steel-clad copper material improves the wear resistance of the machine part.
3. Compared with a single concentric groove structure form, the die moving guide sleeve with the concentric groove and the spiral groove structure form can improve the guide effect on lubricating oil, so that the lubricating oil is more uniformly distributed in the circumferential direction of the pull rod, the lubrication is more sufficient, the wear resistance of a moving part is improved, the wear is reduced, the normal centering can be ensured in the process of moving a die and a fixed die, the situation that the fixed die of the die is not in place and loses basic functions is avoided, and the maintenance cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a clamping mechanism of a toggle injection molding machine according to the present invention.
Fig. 2 is a schematic perspective view of a mold-moving guide sleeve of a mold clamping mechanism of a toggle-type injection molding machine according to the present invention.
Fig. 3 is a sectional view of a mold-moving guide sleeve of the clamping mechanism of the toggle injection molding machine shown in fig. 2.
In the figure: 1-front template, 2-pull rod, 3-movable template, 4-rear template, 5-mould moving guide sleeve, 6-toggle rod mechanism, 7-flange, 8-guide sleeve body, 9-concentric groove structure and 10-spiral groove structure.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
The invention relates to a toggle rod type injection molding machine mould closing mechanism, which comprises a front template 1, a movable template 3, a rear template 4, a toggle rod mechanism 6 and four pull rods 2, as shown in figure 1, besides the prior toggle rod type injection molding machine mould closing mechanism, a mould moving guide sleeve 5, wherein the mould moving guide sleeve 5 is arranged at two ends of four pull rod holes of the movable template. According to the conventional toggle rod type injection molding machine mold closing mechanism, a mold is arranged between a front template 1 and a movable template 3, a toggle rod mechanism 6 is arranged between the movable template 3 and a rear template 4, a mold adjusting mechanism is further arranged on the rear template 4, an ejection mechanism is further arranged on the movable template, the front template 1 and the rear template 4 are arranged at two ends of four pull rods 2, and the movable template 3 slides on the four pull rods 2.
As shown in fig. 2, in the toggle-type clamping mechanism of the injection molding machine, the mold-moving guide sleeve 5 comprises a flange 7 and a guide sleeve body 8, the exterior of the annular body of the mold-moving guide sleeve 5 is mounted on the movable mold plate, the interior of the annular body of the mold-moving guide sleeve 5 is penetrated by the pull rod 2, and the pull rod 2 can make reciprocating linear motion relative to the guide sleeve body 8. The radial thickness of the annular body of the guide sleeve is ten percent of the diameter of the pull rod, the axial length of the guide sleeve is eighty-five percent to one hundred percent of the diameter of the pull rod under the condition that the guide effect is met and the stroke of the movable template is not influenced, the guide sleeves are arranged on the front side and the rear side of the movable template, and eight guide sleeves are installed in total. When the movable mould guide sleeve is matched and positioned with the movable mould plate 3, compared with the condition that the diameter of the flange of the existing movable mould guide sleeve needs to be 6-7mm higher than a pull rod hole, the flange 7 can reduce the material consumption and the cost on the basis of meeting the function, simultaneously avoid the waste of processing caused by the casting and forming of the steel-clad copper, and the diameter of the flange is 3-4mm higher.
As shown in figure 2, the toggle rod type injection molding machine mould clamping mechanism of the invention has an outer layer made of 20 # carbon structural steel, an inner ring made of ZQSn-6-6-3 (tin bronze) steel ladle copper material mould moving guide sleeve, an inner wall with the thickness of 2.0-2.3mm, and outer layer and inner wall materials which are combined together through casting molding. Compared with the single 20 # carbon structural steel material of the existing mold moving guide sleeve, the wear resistance is improved.
As shown in fig. 3, in the mold clamping mechanism of the toggle injection molding machine according to the present invention, compared with the single concentric groove structure form of the conventional mold-moving guide sleeve, the mold-moving guide sleeve 5 adopts the structure form of the concentric groove structure 9 plus the spiral groove structure 10, the two ends of the mold-moving guide sleeve are the concentric groove structures 9, i.e., the annular grooves, the spiral groove structure 10 with the same rotation direction is arranged in the middle, the mold-moving guide sleeves with different lengths have two or three turns of the spiral groove structure 10, and the pitch of the spiral groove is determined by calculation according to the length of the mold-moving guide sleeve and the number of turns of the spiral groove. The spiral groove structure 10 of the internal diameter of the moving die guide sleeve body can be provided with a plurality of axial grooves, lubricating oil can be conveniently communicated with each other to form a film, the moving die guide sleeve 5 in the form of the concentric groove structure 9 and the spiral groove structure 10 can improve the guiding effect on the lubricating oil compared with a single concentric groove structure, the lubricating oil is more uniformly distributed in the circumferential direction of the pull rod, the lubrication is more sufficient, the wear resistance of moving parts is improved, the wear is reduced, the in-process of a moving die and a fixed die can be ensured, the normal centering is carried out, the condition that the fixed die is not in place and loses the basic function is avoided, and the maintenance cost is reduced. In order to facilitate the lubricating oil to enter the sliding matching surface of the pull rod, a circular hole or an arc-shaped hole is formed in the position, corresponding to the concentric groove structure 9 or the spiral groove structure 10, on the guide sleeve body.
Since the operation principle and operation process of the toggle-type clamping mechanism of the injection molding machine are already common, the description thereof will not be provided herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. Mould clamping mechanism of toggle rod type injection molding machine mainly includes front mould board, movable mould board, back template, toggle rod mechanism and four pull rods, and the installation mould between front mould board and the movable mould board, toggle rod mechanism install between movable mould board and back template, still install the accent mould mechanism on the back template, still install ejection mechanism on the movable mould board, template and back template before the both ends installation of four pull rods, and the movable mould board slides its characterized in that on four pull rods: the mould moving guide sleeve comprises a guide sleeve body and a flange, the outer portion of the annular body of the mould moving guide sleeve is mounted on the movable mould plate, a pull rod penetrates through the annular body of the mould moving guide sleeve, the pull rod can do reciprocating linear motion relative to the guide sleeve body, the mould moving guide sleeve is made of a steel ladle copper material, and the inner surface of the guide sleeve is of a concentric groove structure and a spiral groove structure.
2. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the die-moving guide sleeve body is of a cylindrical structure, a flange is arranged on the outer side of one end of the guide sleeve body, the flange of the die-moving guide sleeve is matched with the movable template to play a positioning role, and the diameter of the flange is only 3-4mm higher than the outer diameter of the die-moving guide sleeve body.
3. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the mould moving guide sleeve is made of steel ladle copper material with an outer layer of 20 # carbon structural steel and an inner layer of tin bronze.
4. The clamping mechanism of a toggle injection molding machine as claimed in claim 3, wherein: the tin bronze is ZQSn-6-6-3.
5. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the two ends of the mould moving guide sleeve are of concentric groove structures, and the middle of the mould moving guide sleeve is of a spiral groove structure in the same rotation direction; the number of turns of the spiral groove structure is two or three, and the pitch of the spiral groove is determined by calculation according to the length of the guide sleeve and the number of turns of the spiral groove.
6. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the radial thickness of the annular mould moving guide sleeve body of the guide sleeve is ten percent of the diameter of the pull rod, the thickness of the inner wall is 2.0-2.3mm, and the outer layer and the inner wall are combined together by casting.
7. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the axial length of the die-moving guide sleeve is between eighty-five percent and one hundred percent of the diameter of the pull rod, and the die-moving guide sleeves are arranged on the front side and the rear side of the movable die plate.
8. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: and a plurality of axial grooves are formed in the spiral groove structure of the inner diameter of the die moving guide sleeve body.
9. The clamping mechanism of a toggle injection molding machine as claimed in claim 1, wherein: the guide sleeve body is provided with a circular hole or an arc hole corresponding to the concentric groove structure or the spiral groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190622.5A CN112810093A (en) | 2021-02-18 | 2021-02-18 | Toggle rod type injection molding machine mould clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190622.5A CN112810093A (en) | 2021-02-18 | 2021-02-18 | Toggle rod type injection molding machine mould clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112810093A true CN112810093A (en) | 2021-05-18 |
Family
ID=75864221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110190622.5A Pending CN112810093A (en) | 2021-02-18 | 2021-02-18 | Toggle rod type injection molding machine mould clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112810093A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307514A (en) * | 2001-04-06 | 2002-10-23 | Niigata Tekko Seikeiki Kk | Oil feed structure of mold thickness adjusting nut of injection molding machine |
| CN201633182U (en) * | 2009-12-01 | 2010-11-17 | 宁波通用塑料机械制造有限公司 | Guide component lubricating device of injection molding machine movable template |
| CN202702562U (en) * | 2012-08-27 | 2013-01-30 | 宁波华美达机械制造有限公司 | Lubricating device of movable template of injection molding machine |
| CN205219662U (en) * | 2015-12-15 | 2016-05-11 | 宁波通用塑料机械制造有限公司 | A guide pin bushing for injection molding machine template |
| CN206170587U (en) * | 2016-11-17 | 2017-05-17 | 无锡海天机械有限公司 | Injection molding machine movable mould board draw -bar guide sleeve lubricating arrangement and system thereof |
| CN108758310A (en) * | 2018-08-15 | 2018-11-06 | 浙江泰瑞重型机械有限公司 | Circulating oil system based on injection molding machine |
| CN210233787U (en) * | 2019-07-03 | 2020-04-03 | 无锡海天机械有限公司 | Guide sleeve and injection molding machine |
| CN112078103A (en) * | 2020-09-28 | 2020-12-15 | 泰瑞机器股份有限公司 | Toggle rod type injection molding machine mould clamping mechanism |
| CN214521756U (en) * | 2021-02-18 | 2021-10-29 | 泰瑞机器股份有限公司 | Toggle rod type injection molding machine mould clamping mechanism |
-
2021
- 2021-02-18 CN CN202110190622.5A patent/CN112810093A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002307514A (en) * | 2001-04-06 | 2002-10-23 | Niigata Tekko Seikeiki Kk | Oil feed structure of mold thickness adjusting nut of injection molding machine |
| CN201633182U (en) * | 2009-12-01 | 2010-11-17 | 宁波通用塑料机械制造有限公司 | Guide component lubricating device of injection molding machine movable template |
| CN202702562U (en) * | 2012-08-27 | 2013-01-30 | 宁波华美达机械制造有限公司 | Lubricating device of movable template of injection molding machine |
| CN205219662U (en) * | 2015-12-15 | 2016-05-11 | 宁波通用塑料机械制造有限公司 | A guide pin bushing for injection molding machine template |
| CN206170587U (en) * | 2016-11-17 | 2017-05-17 | 无锡海天机械有限公司 | Injection molding machine movable mould board draw -bar guide sleeve lubricating arrangement and system thereof |
| CN108758310A (en) * | 2018-08-15 | 2018-11-06 | 浙江泰瑞重型机械有限公司 | Circulating oil system based on injection molding machine |
| CN210233787U (en) * | 2019-07-03 | 2020-04-03 | 无锡海天机械有限公司 | Guide sleeve and injection molding machine |
| CN112078103A (en) * | 2020-09-28 | 2020-12-15 | 泰瑞机器股份有限公司 | Toggle rod type injection molding machine mould clamping mechanism |
| CN214521756U (en) * | 2021-02-18 | 2021-10-29 | 泰瑞机器股份有限公司 | Toggle rod type injection molding machine mould clamping mechanism |
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