CN113997535B - Method for adjusting mold and aligning bonding surface of mold of injection molding machine - Google Patents
Method for adjusting mold and aligning bonding surface of mold of injection molding machine Download PDFInfo
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- CN113997535B CN113997535B CN202111279810.1A CN202111279810A CN113997535B CN 113997535 B CN113997535 B CN 113997535B CN 202111279810 A CN202111279810 A CN 202111279810A CN 113997535 B CN113997535 B CN 113997535B
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- mold
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000001746 injection moulding Methods 0.000 title claims abstract description 23
- 230000009194 climbing Effects 0.000 claims abstract description 43
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- B29C45/76—Measuring, controlling or regulating
- B29C45/80—Measuring, controlling or regulating of relative position of mould parts
-
- 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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for adjusting a die and aligning a bonding surface of a die of an injection molding machine, which comprises the following steps: s1, acquiring a mold locking force set by a user, and searching a position ① of a corresponding cross head in a mold locking force table; s2, locking the mold to zero by a mold locking motor; s3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die; s4, locking the mold to the zero point by a mold locking motor, and starting high voltage; s5, recording a current ramp value ③ of the mode locking to the zero point in the step S4; s61, comparing the current climbing value ③ in the S5 with a current climbing value ② corresponding to the current climbing value searched in a current climbing table, and if ③ is within the error range of ②, opening the die of the die locking motor to an end point, and prompting the end of automatic die adjustment; by adopting the technical scheme, when the ascending current is judged to not reach the surface value, the die holder is moved forward by actively retreating the position of the die locking cross head in a phase-changing manner, so that the die locking force is improved, the preset value is reached, the molding die locking force is ensured, and the problems of burrs and the like can be prevented.
Description
Technical Field
The invention relates to the technical field of mold adjustment of injection molding machines, in particular to a method for aligning a bonding surface of a mold by mold adjustment of an injection molding machine.
Background
In the mold adjusting action control of the electric injection molding machine, the mold locking force control is very critical, and whether the product can be molded smoothly is directly influenced. The die adjusting action of the electric injection molding machine in the current market is generally adjusted by using an asynchronous motor matched with an encoder, but the method has the problems that the torque of the asynchronous motor is insufficient, the bonding surface of the die cannot be correctly aligned, the molding die locking force is insufficient, burrs are generated and the like when the spring die is encountered.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to solve the problem that the abutting surface of a die cannot be aligned due to insufficient torque of an asynchronous motor under the condition of not increasing cost, and provides a method for adjusting the die and aligning the abutting surface of the die of an injection molding machine so as to solve the technical problems.
The technical scheme adopted for solving the technical problems is as follows:
According to one aspect of the invention, a method for aligning the abutting surface of a die for adjusting a die of an injection molding machine is designed, and comprises the following steps:
S1, acquiring a mold locking force set by a user, and searching a position ① of a corresponding cross head in a mold locking force table;
or S11, acquiring a mode locking force set by a user, searching a corresponding current climbing value ② in a current climbing table, and searching a position ① of a corresponding cross head in the mode locking force table;
S2, locking the mold to zero by a mold locking motor, and detecting whether the mold is blocked in the mold locking process;
When the die is blocked, the die locking motor opens the die for a certain distance, the pressure is removed, the die adjusting motor moves back for a certain distance to the die holder, and the step is repeated again until the die is not blocked;
if no resistance exists, the mold locking motor opens the mold to the retrieved cross head position ①;
S3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die;
S4, locking the mold to the zero point by a mold locking motor, and starting high voltage;
s5, recording a current ramp value ③ of the mode locking to the zero point in the step S4;
s6, opening the mold to an end point by a mold locking motor, and prompting the end of automatic mold adjustment;
Or S61, comparing the current climbing value ③ in the S5 with the current climbing value ② corresponding to the current climbing value searched in the current climbing table;
If ③ is within the error range of ②, opening the mold to an end point by the mold locking motor, and prompting the end of automatic mold adjustment;
If ③≤②, the mold locking motor opens the mold for a certain distance, the pressure is removed, the mold adjusting motor moves back for a certain distance to the mold base, and leaves the joint surface, the mold locking motor opens the mold to the crosshead position ① and then moves back XNmm, wherein X represents a preset base number, N represents the number of cycles, N is more than or equal to 1, the steps S3, S4, S5 and S61 are repeated until the current climbing value ③ is within the error range of searching the corresponding current climbing value ② in the current climbing table, and the mold locking motor opens the mold to the end point to prompt the automatic mold adjustment to be ended;
if ③＞②, an alarm is sent out.
By adopting the technical scheme, the method adds the step of detecting the current climbing value in the normal die adjusting process, and checks whether the torque output by the die locking motor is the die locking force set by a user or not by comparing the current climbing value; through changing action logic on the procedure, mode locking action cooperates with mode adjustment action, when judging climbing electric current can't reach the table value, through the position of initiative back mode locking cross head, let the die holder more forward by the change of looks, and then promote mode locking power, reach the default, realized under the mode adjustment motor operating mode of lower moment of torsion, accomplish the mode locking power correction of drag mould such as spring mould, guarantee shaping mode locking power, can prevent the problem such as deckle edge.
In order to better solve the technical defects, the invention also has a better technical scheme:
In some embodiments, the die opening distance is 10-360mm when the pressure is removed in S2.
In some embodiments, the die holder is set back by a distance of 0-500mm in S2.
In some embodiments, the die opening distance is 2-5mm when the pressure is removed in S61.
In some embodiments, the die holder is set back a distance of 1-5mm in S61.
In some embodiments, the preset base number is 0.3-0.5 in S61.
In some embodiments, the mode motor stall time in S3 is 0.05-0.3S.
In some embodiments, the die holder is set back by a distance of 5mm in S61.
In some embodiments, the preset base is 0.4 in S61. In actual test, the larger die-setting back distance of the die holder can lead to larger die-setting precision deviation, the smaller repetition times are too large, the die-setting efficiency is affected, and only when the back distance of the die holder is 0.4mm more than the previous time in each cycle, the ratio of the precision to the times is best, so that the adjusting time is shortened, and the die-setting efficiency is improved.
In some embodiments, the mode motor stall time is 0.1S in S3.
Drawings
FIG. 1 is a schematic flow chart of a method for aligning a bonding surface of a mold for mold adjustment of an injection molding machine according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for aligning a bonding surface of a mold for mold adjustment of an injection molding machine according to another embodiment of the present invention;
fig. 3 is a schematic flow chart of a method for aligning a bonding surface of a mold for an injection molding machine according to still another embodiment of the present invention.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
Example 1
Referring to fig. 1, the method for aligning the bonding surface of the mold for the mold adjustment of the injection molding machine provided by the invention comprises the following steps:
s1, acquiring a mold locking force set by a user, and searching a position ① of a corresponding cross head in a mold locking force table.
S2, the mode locking motor locks the mode to zero, and whether the mode locking process is blocked is detected.
When the die is blocked, the die locking motor opens the die for a certain distance, the pressure is removed, the die adjusting motor moves back for a certain distance to the die holder, and the step is repeated again until the die is not blocked; the die opening distance is 10-360mm, can be any one distance of 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm and 360mm when the pressure is removed, the die setting and the die backing distance are 0-500mm according to the actual requirement or the distance required to backing corresponding to the form check, and can be any one of 0mm, 50mm, 100mm, 200mm, 300mm, 400mm and 500mm according to the actual requirement. The two distances are not limited to the above numerical ranges, but may be larger than the above ranges depending on the mold.
And if no resistance exists, the mold locking motor opens the mold to the retrieved cross head position ①.
S3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die; wherein, the blocking time of the die adjusting motor is 0.05-0.3s, and the blocking time is any one of 0.05s, 0.1s, 0.15s, 0.2s, 0.25s and 0.3s, and according to actual setting, the preferred blocking time of the die adjusting motor is 0.1s.
S4, the mode locking motor locks the mode to the zero point and starts high voltage.
S5, recording a current ramp value ③ from the mode locking to the zero point in the step S4, and monitoring in the follow-up full-automatic process.
S6, the mold locking motor opens the mold to an end point, and the automatic mold adjustment is prompted to end.
Example two
Referring to fig. 2, another method for aligning a bonding surface of a mold of an injection molding machine provided by the invention comprises the following steps:
s1, acquiring a mode locking force set by a user, searching a corresponding current climbing value ② in a current climbing table, and searching a position ① of a corresponding cross head in the mode locking force table.
S2, the mode locking motor locks the mode to zero, and whether the mode locking process is blocked is detected.
When the die is blocked, the die locking motor opens the die for a certain distance, the pressure is removed, the die adjusting motor moves back for a certain distance to the die holder, and the step is repeated again until the die is not blocked; the die opening distance is 10-360mm, can be any one distance of 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm and 360mm when the pressure is removed, the die setting and the die backing distance are 0-500mm according to the actual requirement or the distance required to backing corresponding to the form check, and can be any one of 0mm, 50mm, 100mm, 200mm, 300mm, 400mm and 500mm according to the actual requirement. The two distances are not limited to the above numerical ranges, but may be larger than the above ranges depending on the mold.
And if no resistance exists, the mold locking motor opens the mold to the retrieved cross head position ①.
S3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die; wherein, the blocking time of the die adjusting motor is 0.05-0.3s, and the blocking time is any one of 0.05s, 0.1s, 0.15s, 0.2s, 0.25s and 0.3s, and according to actual setting, the preferred blocking time of the die adjusting motor is 0.1s.
S4, the mode locking motor locks the mode to the zero point and starts high voltage.
S5, recording a current ramp value ③ of the mode locking to the zero point in the step S4.
S61, comparing the current climbing value ③ in the S5 with a current climbing value ② corresponding to the current climbing value searched in a current climbing table;
If ③ is within the error range of ②, opening the mold to an end point by the mold locking motor, and prompting the end of automatic mold adjustment;
If ③≤②, the mold locking motor opens a mold for a certain distance, the pressure is removed, the mold adjusting motor moves back for a certain distance to the mold base, and leaves the joint surface, the mold locking motor locks the mold to the cross head position ① and moves back XNmm, wherein X represents a preset base number, N represents the circulation times, N is more than or equal to 1, the steps S3 to S61 are repeated until the current climbing value ③ is within the error range of retrieving the corresponding current climbing value ② in the current climbing table, the mold locking motor opens the mold to the end point, and the automatic mold adjustment is prompted to end; wherein, the die opening distance is 2-5mm when the pressure is removed, and the die opening distance can be any distance of 2mm, 3mm, 4mm and 5mm, and is set according to the actual practice; the die holder is adjusted to have a die backing distance of 1-5mm, wherein the backing distance can be any one of 1mm, 2mm, 3mm, 4mm and 5mm, and is set according to actual practice; the preset base number X is 0.3-0.5, X may be 0.3 or 0.4 or 0.5, preferably 0.4.
If ③＞②, an alarm is sent out.
The mode locking motors except the operation in the step S4 are all in a low-speed and low-torque protection operation mode.
Example III
Referring to fig. 3, the method for aligning the bonding surface of the mold adjustment of the injection molding machine provided by the invention comprises the following steps:
S1, acquiring a mold locking force set by a user, and searching a position ① of a corresponding cross head in a mold locking force table;
Or S11, acquiring the mode locking force set by a user, searching a corresponding current climbing value ② in a current climbing table, and searching a position ① of a corresponding cross head in the mode locking force table.
S2, the mode locking motor locks the mode to zero, and whether the mode locking process is blocked is detected.
When the die is blocked, the die locking motor opens the die for a certain distance, the pressure is removed, the die adjusting motor moves back for a certain distance to the die holder, and the step is repeated again until the die is not blocked; the die opening distance is 10-360mm, can be any one distance of 10mm, 50mm, 100mm, 150mm, 200mm, 250mm, 300mm and 360mm when the pressure is removed, the die setting and the die backing distance are 0-500mm according to the actual requirement or the distance required to backing corresponding to the form check, and can be any one of 0mm, 50mm, 100mm, 200mm, 300mm, 400mm and 500mm according to the actual requirement. The two distances are not limited to the above numerical ranges, but may be larger than the above ranges depending on the mold.
And if no resistance exists, the mold locking motor opens the mold to the retrieved cross head position ①.
S3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die; wherein, the blocking time of the die adjusting motor is 0.05-0.3s, and the blocking time is any one of 0.05s, 0.1s, 0.15s, 0.2s, 0.25s and 0.3s, and according to actual setting, the preferred blocking time of the die adjusting motor is 0.1s.
S4, the mode locking motor locks the mode to the zero point and starts high voltage.
S5, recording a current ramp value ③ of the mode locking to the zero point in the step S4.
S6, opening the mold to an end point by a mold locking motor, and prompting the end of automatic mold adjustment;
Or S61, comparing the current climbing value ③ in the S5 with the current climbing value ② corresponding to the current climbing value searched in the current climbing table;
If ③ is within the error range of ②, opening the mold to an end point by the mold locking motor, and prompting the end of automatic mold adjustment;
If ③≤②, the mold locking motor opens a mold for a certain distance, the pressure is removed, the mold adjusting motor moves back for a certain distance to the mold base, and leaves the joint surface, the mold locking motor locks the mold to the cross head position ① and moves back XNmm, wherein X represents a preset base number, N represents the circulation times, N is more than or equal to 1, the steps S3 to S61 are repeated until the current climbing value ③ is within the error range of retrieving the corresponding current climbing value ② in the current climbing table, the mold locking motor opens the mold to the end point, and the automatic mold adjustment is prompted to end; wherein, the die opening distance is 2-5mm when the pressure is removed, and the die opening distance can be any distance of 2mm, 3mm, 4mm and 5mm, and is set according to the actual practice; the die holder is adjusted to have a die backing distance of 1-5mm, wherein the backing distance can be any one of 1mm, 2mm, 3mm, 4mm and 5mm, and is set according to actual practice; the preset base number X is 0.3-0.5, X may be 0.3 or 0.4 or 0.5, preferably 0.4.
If ③＞②, an alarm is sent out.
In the dashed box in fig. 3, steps S11 and S61 are optional method functions, and the corresponding function switches can control the on/off of the dashed box, when the dashed box is closed, the die adjusting method performs the die adjusting method as in the first embodiment to perform the automatic die adjustment, and when the dashed box is opened, the die adjusting method performs the die adjusting method as in the second embodiment to perform the automatic die adjustment. The other mode locking motors except the operation in the step S4 are all in a low-speed and low-torque protection operation mode.
The foregoing is merely illustrative of some embodiments of the invention, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the inventive concept.
Claims (8)
1. The method for aligning the bonding surface of the die by adjusting the die of the injection molding machine is characterized by comprising the following steps of:
S11, acquiring a mode locking force set by a user, searching a corresponding current climbing value ② in a current climbing table, and searching a position ① of a corresponding cross head in the mode locking force table;
S2, locking the mold to zero by a mold locking motor, and detecting whether the mold is blocked in the mold locking process;
When the die is blocked, the die locking motor opens the die for a certain distance, the pressure is removed, the die adjusting motor moves back for a certain distance to the die holder, and the step is repeated again until the die is not blocked;
if no resistance exists, the mold locking motor opens the mold to the retrieved cross head position ①;
S3, the die adjusting motor adjusts the die of the die holder to advance until the die holder is blocked and the die adjusting motor is locked, and the program judges that the current position is the bonding surface of the die;
S4, locking the mold to the zero point by a mold locking motor, and starting high voltage;
s5, recording a current ramp value ③ of the mode locking to the zero point in the step S4;
S61, comparing the current climbing value ③ in S5 with the current climbing value ② corresponding to the current climbing value searched in the current climbing table,
If ③ is within the error range of ②, the mold locking motor opens the mold to the end point to prompt the end of automatic mold adjustment,
If ③＜②, the mold locking motor opens the mold for a certain distance, the pressure is removed, the mold adjusting motor moves back for a certain distance to the mold base, and leaves the joint surface, the mold locking motor opens the mold to the cross head position ① and moves back XNmm, wherein X represents a preset base number which is 0.4, N represents the cycle number, N is more than or equal to 1, the steps S3, S4, S5 and S61 are repeated until the current climbing value ③ is within the error range of searching the corresponding current climbing value ② in the current climbing table, the mold locking motor opens the mold to the end point, the automatic mold adjustment is prompted to be ended,
If ③＞②, an alarm is sent out.
2. The method for aligning a mold abutment surface for an injection molding machine according to claim 1, wherein the mold opening distance is 10-360mm when the pressure is removed in S2.
3. The method for aligning a die attach surface of an injection molding machine according to claim 1, wherein the die holder die set back distance in S2 is 0-500mm.
4. The method for aligning a mold abutment surface for an injection molding machine according to claim 1, wherein the mold opening distance is 2-5mm when the pressure is removed in S61.
5. The method for aligning a die attach surface of an injection molding machine according to claim 1, wherein the die holder is moved back by a die set distance of 1-5mm in S61.
6. The method for aligning a mold abutment surface of an injection molding machine according to claim 1, wherein the blocking time of the mold adjusting motor in S3 is 0.05-0.3S.
7. The method for aligning a mold abutment surface for an injection molding machine according to claim 5, wherein the mold setting back distance is 5mm in S61.
8. The method for aligning a mold abutment surface for an injection molding machine of claim 6, wherein the mold adjustment motor stall time in S3 is 0.1S.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111279810.1A CN113997535B (en) | 2021-10-29 | 2021-10-29 | Method for adjusting mold and aligning bonding surface of mold of injection molding machine |
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| CN202111279810.1A CN113997535B (en) | 2021-10-29 | 2021-10-29 | Method for adjusting mold and aligning bonding surface of mold of injection molding machine |
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| CN113997535B true CN113997535B (en) | 2024-07-09 |
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| DE3933348A1 (en) * | 1989-10-06 | 1991-04-18 | Kloeckner Ferromatik Desma | MOLDING LOCKING DEVICE FOR AN INJECTION MOLDING MACHINE |
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| JP3219268B2 (en) * | 1998-03-31 | 2001-10-15 | 住友重機械工業株式会社 | Mold clamping controller |
| JP3691298B2 (en) * | 1999-08-19 | 2005-09-07 | 東芝機械株式会社 | Position control device |
| JP3842596B2 (en) * | 2001-08-09 | 2006-11-08 | 株式会社名機製作所 | Injection molding machine provided with mold closing device for performing mold protection control and method for controlling mold closing device |
| JP4253814B2 (en) * | 2003-06-25 | 2009-04-15 | 株式会社ニイガタマシンテクノ | High pressure clamping start position setting device in injection molding machine |
| JP5345825B2 (en) * | 2008-11-05 | 2013-11-20 | ファナック株式会社 | Control device for toggle type injection molding machine having mold closing position detecting means |
| JP4976480B2 (en) * | 2009-11-27 | 2012-07-18 | 日精樹脂工業株式会社 | Method for correcting mold clamping force of mold clamping device |
| EP2501533B1 (en) * | 2010-11-23 | 2013-06-12 | Synventive Molding Solutions, Inc. | Injection molding flow control apparatus and method |
| CN203713013U (en) * | 2013-12-18 | 2014-07-16 | 中山力劲机械有限公司 | Mold-opening assisting device of injection molding machine |
| JP6348161B2 (en) * | 2016-11-29 | 2018-06-27 | ファナック株式会社 | Control device and management system for injection molding machine |
| CN212045866U (en) * | 2019-10-29 | 2020-12-01 | 宁波创基机械有限公司 | Automatic adjusting device for mold locking force of injection molding machine |
| CN113246420B (en) * | 2020-09-09 | 2022-04-08 | 伊之密精密机械（苏州）有限公司 | Clamping force control method and injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640983A (en) * | 2019-10-29 | 2020-01-03 | 宁波创基机械有限公司 | Automatic adjusting device and method for mold clamping force of injection molding machine |
| CN112297344A (en) * | 2020-10-15 | 2021-02-02 | 珠海格力智能装备有限公司 | Mold adjusting method and device of injection molding machine |
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