CN110802801B - Injection molding process for super-long pore product - Google Patents
Injection molding process for super-long pore product Download PDFInfo
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- CN110802801B CN110802801B CN201911106668.3A CN201911106668A CN110802801B CN 110802801 B CN110802801 B CN 110802801B CN 201911106668 A CN201911106668 A CN 201911106668A CN 110802801 B CN110802801 B CN 110802801B
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- metal coil
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- 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
- B29C45/1756—Handling of moulds or mould parts, e.g. mould exchanging means
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
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- 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
- B29C45/26—Moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an injection molding process of an ultralong pore product, which belongs to the field of injection molding, and the process uses a metal coil core, an ultralong injection product mold, a correlation infrared sensor, an injection molding machine and a mechanical arm, wherein the metal coil core is clamped between mold parting surfaces during mold closing under the correction of the correlation infrared sensor and the fixation of the mechanical arm, after the injection molding machine performs injection molding and mold opening, the mechanical arm stretches the metal coil core in the Z-axis direction after realizing mold release through movement of an X-axis, a metal coil in the metal coil core is stretched and thinned, and simultaneously a surface coating is damaged, and when a whole disc of the metal coil core is used up, the product is separated under the action of the mechanical arm. The invention adopts the metal coil core, utilizes the characteristic that the metal coil core is stretched to be thinned and is separated from a product, and adopts the correlation of the position calibration of the correlation infrared sensor and the mechanical arm to realize the continuous production of the product with ultra-long pores, because the traditional needle-shaped core is omitted, the product rate can be greatly improved.
Description
Technical Field
The invention relates to an injection molding process of a super-long pore product, belonging to the field of injection molding.
Background
The plastic products are more and more widely applied in various fields by virtue of excellent performance, and various shape requirements put higher requirements on a mould and an injection molding process. For injection molding products, holes with the length-diameter ratio of more than or equal to 5 are called ultra-long pores, and because the length-diameter ratio of the holes is too large, the injection molding of the ultra-long pores is a problem which is difficult to solve in the field. The reasons for this are mainly the following: 1. under the action of gravity, the needle-shaped core with large length-diameter ratio is easy to generate hole eccentricity; 2. the needle-shaped core is too thin, and a product with a tiny eccentric error within a tolerance allowable range is difficult to fall off from the needle-shaped core; 3. needle cores with large aspect ratios are prone to breakage during use. Therefore, a new injection molding process is needed to overcome the above difficulties and obtain a plastic product with ultra-long pores.
Disclosure of Invention
The invention aims to provide a process capable of widely producing plastic products with ultra-long pores, which can theoretically realize the molding of plastic products with infinite long pores. The process can solve the problems that the plastic product is easy to have eccentric holes and difficult to fall off from the needle-shaped core and the needle-shaped core is easy to break in the traditional process, and realize continuous production of the plastic product with super-long pores and extremely high qualification rate.
The invention provides a process for producing plastic products with ultra-long pores. The process uses a metal coil core, an ultra-long injection molding product mold, a correlation infrared sensor, an injection molding machine and a mechanical arm.
The invention provides an injection molding process of a super-long pore product, which comprises the following steps:
the first step is as follows: fixing the correlation infrared sensor on a die through a socket head cap screw, and ensuring that an infrared transmitting and receiving end in the X-axis direction and a positioning hole matched with a metal coil in the die are in the same vertical position;
the second step is that: mounting the mold on an injection molding machine through a pressing plate and opening the mold;
the third step: fixing the metal coil type core disc on the shell of the injection molding machine;
the fourth step: a manipulator at the upper end of the mold grabs the metal coil core and reciprocates along the positive and negative directions of the Z axis, and the metal coil core moves towards the negative direction of the Z axis under the traction;
the fifth step: a manipulator at the lower end of the mold accurately grasps the metal coil core according to the position provided by the correlation infrared sensor and is tensioned by the force which is just not deformed by the metal coil core;
and a sixth step: the upper mechanical arm and the lower mechanical arm synchronously move to a positioning hole of the metal coil in the die in the Y axis under the assistance of the correlation infrared sensor, and the two mechanical arms simultaneously move to the X axis negative direction under the assistance of the position of the correlation infrared sensor until the metal coil core is clamped in the cavity;
the seventh step: closing the mold by the injection molding machine and completing injection molding;
eighth step: after the injection molding machine opens the mold, the two mechanical arms synchronously move towards the positive direction of the X axis under the assistance of the position of the correlation infrared sensor so that the product is separated from the mold;
the ninth step: a mechanical arm at the lower end of the mold applies pulling force required by the thinning of the metal coil mold core to the Z-axis negative direction, so that the thinning of a metal wire in the metal coil mold core and the damage of an external coating are realized;
the tenth step: and repeating the fourth step to the ninth step to realize the injection molding, demolding and core stripping of the next round of products until the whole metal coil core is used up.
Before the first step, a metal coil core is manufactured, a metal coil is arranged inside the metal coil core, a non-adhesive material is arranged outside the metal coil core, or a thin layer of the non-adhesive material is sprayed, and the inner diameter of the formed and deformed product of the outer diameter of the metal coil core is considered.
The metal coil core is composed of a metal coil which can be stretched and thinned and a polymer non-stick coating which is coated outside the metal coil core, and the surface of a die core cavity of the die is coated with the polymer non-stick coating, so that the product can be demoulded more easily by the coating. The metal coil core and the positioning hole matched with the metal coil in the mold are in interference fit when the mold is closed, so that glue leakage in the injection molding process is prevented.
Two sets of correlation formula infrared sensor fix on the mould, can pinpoint the metal coil core through infrared correlation and in X axle Y axle position, provide accurate position for the arm working process.
The mechanical arm is a clamping type mechanical claw, and can clamp the metal coil core; the mechanical arm has three degrees of freedom, and can be positioned at any position in a three-dimensional coordinate system; under the cooperation of the mechanical arm and the mechanical arm, the purposes of conveying, clamping, stretching, demoulding and the like of the metal coil core are achieved.
The injection molding process of the ultra-long pore product has the following beneficial effects: the invention adopts the metal coil core, utilizes the characteristic that the metal coil core is stretched to be thinned and is separated from a product, and adopts the correlation of the position calibration of the correlation infrared sensor and the mechanical arm to realize the continuous production of the product with ultra-long pores, because the traditional needle-shaped core is omitted, the product rate can be greatly improved.
Drawings
Fig. 1 is a schematic view of the whole device in the injection molding process of the ultra-long pore product of the invention.
Fig. 2 is a schematic view of a metal coil core in an injection molding process of a super-long pore product according to the present invention.
Fig. 3 is a three-dimensional wire frame diagram of an upper mechanical arm in the injection molding process of the ultra-long pore product of the invention.
Fig. 4 is a schematic view of a mold in the injection molding process of a super-long pore product according to the present invention.
In the figure: 1-a metal coil core disc; 2-a metal coil core; 2-1-polymer non-stick coating; 2-2-stretch-thinning metal coils; 3-upper Y-axis mechanical arm; 4-upper end X-axis mechanical arm; 5-an upper Z-axis mechanical arm; 6-upper end clamping type mechanical claw; 7-Y axis infrared emission end; 8-moving mould plate; 9-lower Y-axis mechanical arm; 10-lower end X-axis mechanical arm; 11-lower end Z-axis mechanical arm; 12-a lower end clamping type mechanical claw; 13-X axis infrared emission end; 14-a mould fixed template; 15-Y axis infrared receiving end; a 16-X axis infrared receiving end; 17-positioning holes in the mould for matching the metal coil.
Detailed Description
And (3) customizing a set of metal coil cores and a mold of the mold cavity coated with the polymer non-stick coating according to the size of the plastic product.
Embodiments of the invention will now be described with reference to the accompanying drawings shown in figures 1-4, in which: the nozzle of the injection molding machine faces to the positive X axis, the paper surface is vertical to the positive Y axis, and the injection molding machine is placed on the upper surface to be positive Z axis; the upper mechanical arm comprises an upper Y-axis mechanical arm 3, an upper X-axis mechanical arm 4 and an upper Z-axis mechanical arm 5, the lower mechanical arm comprises an upper lower shaft mechanical arm 9, a lower X-axis mechanical arm 10 and a lower Z-axis mechanical arm 11, and the correlation infrared sensor comprises a Y-axis infrared transmitting end 7, an X-axis infrared transmitting end 13, a Y-axis infrared receiving end 15 and an X-axis infrared receiving end 16. The invention relates to an injection molding process of a super-long pore product, which comprises the following specific steps:
the first step is as follows: fixing a Y-axis infrared transmitting end 7, an X-axis infrared transmitting end 13, a Y-axis infrared receiving end 15 and an X-axis infrared receiving end 16 of the correlation infrared sensor on a mold through hexagon socket head cap bolts, and ensuring that the infrared transmitting and receiving ends in the X-axis direction and a positioning hole 17 in the mold matched with a metal coil are in the same vertical position;
the second step is that: installing a movable mold plate 8 and a fixed mold plate 14 on an injection molding machine through a pressing plate and opening the mold;
the third step: fixing the metal coil type core disc 1 on the shell of the injection molding machine;
the fourth step: the manipulator 6 at the upper end of the mold grabs the metal coil mold core and reciprocates along the positive and negative directions of the Z axis, and the metal coil mold core 2 moves towards the negative direction of the Z axis under the traction;
the fifth step: the manipulator 12 at the lower end of the mould accurately grasps the metal coil core according to the positions provided by the Y-axis infrared transmitting end 7 and the Y-axis infrared receiving end 15 of the correlation infrared sensor and is tensioned by the force which is just not deformed by the metal coil core;
and a sixth step: the upper end Y-axis mechanical arm 3 and the lower end Y-axis mechanical arm 9 synchronously move to a positioning hole 17 matched with a metal coil in the mold in the Y axis under the assistance of a Y-axis infrared transmitting end 7 and a Y-axis infrared receiving end 15 of the correlation infrared sensor, and the upper end X-axis mechanical arm 4 and the lower end X-axis mechanical arm 10 of the two mechanical arms simultaneously move to the X axis negative direction to the positioning hole 17 matched with the metal coil in the mold under the assistance of the positions of an X-axis infrared transmitting end 13 and an X-axis infrared receiving end 16 of the correlation infrared sensor;
the seventh step: closing the mold by the injection molding machine and completing injection molding;
eighth step: after the injection molding machine opens the mold, the upper X-axis mechanical arm 4 and the lower X-axis mechanical arm 10 of the two mechanical arms synchronously move towards the positive direction of the X axis at the same time under the assistance of the X-axis infrared transmitting end 13 and the X-axis infrared receiving end 16 at the position of the correlation infrared sensor, so that a product is separated from the mold;
the ninth step: a mechanical arm 11 at the lower end of the mold applies pulling force required by thinning of the metal coil to the Z-axis negative direction, so that the metal coil in the metal coil core is thinned, an external coating is damaged, and the metal coil is separated from a hole of an injection molding product;
the tenth step: and repeating the four to nine steps to realize the injection molding, demolding and core stripping of the next round of products until the whole metal coil core is used up.
The invention relates to an injection molding process of a product with ultra-long pores, wherein a metal coil core can be separated from the product after a whole disk of the metal coil core is used up.
According to the injection molding process of the ultra-long pore product, the stretching degree is controlled within the elastic range of the metal coil, the surface skin of the core of the metal coil is crushed, and the metal coil can be recycled.
The surface layer of the metal coil core is made of a non-adhesive material of a product, or a thin layer of the non-adhesive material is sprayed, and the material selection range of the surface layer of the metal coil core is wide.
The metal coil of the metal coil core is tightly wound, the size precision of the metal coil core is improved, and the stretching range is enlarged.
The injection molding process for the ultra-long pore product realizes continuous output under the condition of ensuring the molding precision of the product.
The present invention has been described in connection with the preferred embodiments, but the invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are within the spirit of the process.
Claims (3)
1. An injection molding process of a super-long pore product is characterized in that: fixing a correlation infrared sensor on a die through a socket head cap screw, and ensuring that an infrared transmitting and receiving end in the X-axis direction and a positioning hole matched with a metal coil in the die are in the same vertical position;
secondly, mounting the mold on an injection molding machine through a pressing plate and opening the mold;
thirdly, fixing the metal coil core disc on the shell of the injection molding machine;
fourthly, a manipulator at the upper end of the mold grabs the metal coil mold core and reciprocates along the positive and negative directions of the Z axis, and the metal coil mold core moves towards the negative direction of the Z axis under the traction;
fifthly, accurately grasping the metal coil core by a manipulator at the lower end of the mold according to the position provided by the correlation infrared sensor and tensioning the metal coil core by using the force which is just not deformed;
sixthly, the upper mechanical arm and the lower mechanical arm synchronously move to the positioning hole of the metal coil in the mold in the Y axis under the assistance of the correlation infrared sensor, and the two mechanical arms simultaneously move to the X axis negative direction under the assistance of the position of the correlation infrared sensor until the metal coil mold core is clamped in the mold cavity;
seventhly, closing the mold by the injection molding machine and completing injection molding;
eighthly, after the injection molding machine opens the mold, the two mechanical arms synchronously move towards the positive direction of the X axis under the assistance of the position of the correlation infrared sensor so that the product is separated from the mold;
ninth, a mechanical arm at the lower end of the mold applies pulling force required by the thinning of the metal coil mold core to the Z-axis negative direction, so that the thinning of a metal wire in the metal coil mold core and the damage of an external coating are realized;
and step ten, repeating the fourth step to the ninth step to realize the injection molding, demolding and core stripping of the next round of products until the whole metal coil core is used up.
2. The injection molding process of an ultralong pore product according to claim 1, wherein: the metal coil core can be separated from the product after the whole tray of the metal coil core is used up.
3. The injection molding process of an ultralong pore product according to claim 1, wherein: the degree of stretching in the ninth step is controlled within the elastic range of the metal coil.
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CN201911106668.3A CN110802801B (en) | 2019-11-13 | 2019-11-13 | Injection molding process for super-long pore product |
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CN110802801B true CN110802801B (en) | 2020-11-03 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63309419A (en) * | 1987-06-10 | 1988-12-16 | Sumitomo Heavy Ind Ltd | Injection compression molding machine |
CN202572797U (en) * | 2012-05-02 | 2012-12-05 | 深圳市博研商用设备有限公司 | Automatic wire plugging machine |
CN106891475A (en) * | 2017-01-18 | 2017-06-27 | 歌尔股份有限公司 | The control method and injection molding system of injection moulding |
-
2019
- 2019-11-13 CN CN201911106668.3A patent/CN110802801B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63309419A (en) * | 1987-06-10 | 1988-12-16 | Sumitomo Heavy Ind Ltd | Injection compression molding machine |
CN202572797U (en) * | 2012-05-02 | 2012-12-05 | 深圳市博研商用设备有限公司 | Automatic wire plugging machine |
CN106891475A (en) * | 2017-01-18 | 2017-06-27 | 歌尔股份有限公司 | The control method and injection molding system of injection moulding |
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