CN112026141A - Method for accurately positioning center point of blow-molded lampshade - Google Patents
Method for accurately positioning center point of blow-molded lampshade Download PDFInfo
- Publication number
- CN112026141A CN112026141A CN202010621283.7A CN202010621283A CN112026141A CN 112026141 A CN112026141 A CN 112026141A CN 202010621283 A CN202010621283 A CN 202010621283A CN 112026141 A CN112026141 A CN 112026141A
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- blow
- base material
- finished product
- central point
- accurately positioning
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000000071 blow moulding Methods 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000011265 semifinished product Substances 0.000 claims abstract description 20
- 238000001746 injection moulding Methods 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 11
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 10
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000003223 protective agent Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/72—Deflashing outside the mould
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for accurately positioning the central point of a blow-molded lampshade, which belongs to the technical field of lampshade processing, wherein a base material plate is formed by injection molding, the base material plate is provided with a plate front surface, the plate front surface forms a groove by extrusion molding, the groove is circular, the base material plate forms the lampshade by blow molding, the lampshade is provided with a connecting part, the surface of the connecting part is provided with a convex ring, the method for accurately positioning the central point of the blow-molded lampshade comprises the steps of firstly carrying out injection molding and shearing on raw materials to obtain a square base material plate, facilitating the worker to quickly determine the central position of the square base material plate during subsequent processing, then carrying out heating and extrusion on the square base material plate to form the groove capable of being accurately positioned, and heating by an extruder to ensure that a semi-finished product does not need to preheat the base material plate during blow molding, thereby saving time and, the finished product quality of the lampshade is greatly improved.
Description
Technical Field
The invention relates to the technical field of lampshade processing, in particular to a method for accurately positioning the center point of a blow-molded lampshade.
Background
The lampshade is a cover which is arranged at the periphery of a lamp flame or on a bulb and is used for focusing light or preventing wind and rain, and the lampshade not only covers the lamp to gather the light, but also can prevent electric shock and has the function of protecting eyes.
At present, current blow molding lamp shade needs to be fixed a position many times in the manufacturing process, when carrying out semi-manufactured goods location, often appears the condition that the central point runs the position easily and appears, and the time of not only wasting the staff carries out the location of central point, has reduced the production quality of lamp shade moreover, and the defective rate is higher, and for this reason, we have designed the accurate method of fixing a position of blow molding lamp shade central point, solve above-mentioned problem.
Disclosure of Invention
The invention aims to provide a method for accurately positioning the central point of a blow-molded lampshade, which is characterized in that a square base material plate is obtained by performing injection molding and shearing on a raw material, so that a worker can conveniently and quickly determine the central position of the square base material plate during subsequent processing, the square base material plate is heated and extruded to form a groove capable of being accurately positioned, and a semi-finished product does not need to be preheated to the base material plate during blow molding through heating of an extruder, so that the time is saved, the central point of the lampshade can be accurately positioned during processing, and the finished product quality of the lampshade is greatly improved.
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a method of accurate location of blowing lamp shade central point, includes the substrate board, the substrate board is formed through moulding plastics, the substrate board is equipped with panel openly, panel openly forms the recess through extrusion, the shape of recess is circular, the substrate board forms the lamp shade through blow molding, the lamp shade is equipped with connecting portion, the surface of connecting portion is equipped with the bulge loop, the surface of lamp shade is equipped with decorates the decorative pattern, the blowing end of lamp shade forms the opening, this method of accurate location of blowing lamp shade central point is earlier with the raw materials through the shearing of moulding plastics to obtain the substrate board of square, the staff of being convenient for quick definite central point in the epilogue adds man-hour, then form the recess that can the accurate positioning through the heating extrusion with the substrate board of square again, the heating through the blowing makes semi-manufactured goods need not preheat the substrate board when the extruder, not only saves time, but also can obtain accurate location to the central point of lamp shade when processing, great improvement the finished product quality of lamp shade.
Further, the base material plate is formed by injection molding of PMMA, the base material plate is square, and the center position of the square base material plate is convenient for workers to determine when the square base material plate is extruded.
Furthermore, the groove is formed by heating and extruding, the inner diameter of the groove is larger than the outer diameter of the mold core of the blow molding machine, and the groove is convenient for a worker to determine the center position of the groove during blow molding.
Furthermore, the shape of the convex ring is circular, the convex ring is convenient for increasing the bonding position of the lampshade in the installation process, and the convex ring can also be arranged into an external thread.
Furthermore, the decorative patterns can be in any shape, and the decorative patterns can increase the external appearance of the lampshade.
Further, the method for accurately positioning the central point of the blow-molded lampshade comprises the following steps:
p1, drying PMMA raw material particles through a drying box;
p2, adding the dried PMMA raw material particles into a feeding box of an injection molding machine for heating, and then performing injection molding to form strip-shaped plates;
p3, cutting the strip-shaped plate into a square plate with the same width as the strip-shaped plate through a cutting machine;
p4, putting the square plate spraying processing protective agent into an extruder type cavity for heating and extruding to obtain a semi-finished product;
p5, taking out the semi-finished product which is fastened, heated and extruded, and then directly putting the semi-finished product into a blow molding machine for blow molding, wherein when the semi-finished product is placed, the semi-finished product needs to be clamped on a mold core of the blow molding machine, a finished product with burrs is obtained through blow molding, and the burrs are easily removed through extrusion of the blow molding machine;
p6, taking out the finished product with the rough edge, then manually removing the rough edge, and then placing the finished product in a finished product box.
Further, the drying temperature of the P1 step is eighty to ninety degrees celsius, and the drying time is three to four hours.
Further, the injection molding heating temperature of the step P2 is two hundred and ten to two hundred and forty degrees centigrade.
Further, the cutting tolerance of the step P3 is plus or minus three millimeters, and the thickness tolerance is plus or minus a zero point five millimeters.
According to the method for accurately positioning the central point of the blown lampshade, provided by the invention, the square base material plate is obtained by performing injection molding and shearing on the raw materials, so that a worker can conveniently and quickly determine the central position of the square base material plate during subsequent processing, the square base material plate is heated and extruded to form the groove capable of being accurately positioned, and the semi-finished product is not required to be preheated during blowing by heating of an extruder, so that not only is the time saved, but also the central point of the lampshade can be accurately positioned during processing, and the finished product quality of the lampshade is greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the cutting and forming structure of the substrate board in step P3 according to the present invention;
FIG. 4 is a schematic diagram of the semi-finished product processing structure in step P4 of the present invention.
The reference numbers in the figures illustrate:
1 substrate plate, 11 plate front, 12 grooves, 2 lamp shades, 3 connecting parts, 31 convex rings, 4 decorative patterns and 5 openings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a method for accurately positioning the central point of a blown lamp shade includes a substrate plate 1, referring to fig. 1-4, the substrate plate 1 is formed by injection molding, a strip-shaped substrate plate 1 is obtained by injection molding of PMMA, the width dimensional tolerance is within plus and minus three millimeters, the substrate plate 1 is provided with a plate front 11, the plate front 11 is placed downwards into a cavity of an extruder during heating and extrusion of the extruder, so as to extrude and stretch the substrate plate 1, the plate front 11 is formed into a groove 12 by extrusion molding, the inner diameter of the groove 12 is larger than that of an opening 5 and is not more than plus or minus two millimeters at most, the central point cannot be displaced during blowing, the groove 12 is circular, the substrate plate 1 forms a lamp shade 2 by molding, the groove 12 is directly clamped at the upper end of a mold core of a blow molding machine during blowing, an upper mold and a side mold plate are fastened for blowing after extrusion and fixation, the burr is got rid of with the manual work very easily with the burr through tensile extrusion in the blow molding completion back burr and 2 junctions of lamp shade, and lamp shade 2 is equipped with connecting portion 3, and the surface of connecting portion 3 is equipped with bulge loop 31, and bulge loop 31 can increase the frictional strength of 2 installations departments of lamp shade, also can make screw thread dress, connects lamp shade 2 through the mode of screw thread, and the surface of lamp shade 2 is equipped with decorates decorative pattern 4, and the end of blowing of lamp shade 2 forms opening 5.
Preferably, the base material plate 1 is formed by injection molding of PMMA, the base material plate 1 is square, and the square base material plate 1 is convenient for a worker to determine the central position of the square base material plate 1 during extrusion
Preferably, the groove 12 is formed by heating and extruding, the inner diameter of the groove 12 is larger than the outer diameter of the core of the blow molding machine, and the groove 12 is convenient for workers to determine the central position of the groove when blow molding is carried out.
Preferably, the shape of the protruding ring 31 is circular, the protruding ring 31 facilitates increasing the bonding position of the lampshade 2 during the installation process, and the protruding ring 31 can be provided with an external thread.
Preferably, the decorative pattern 4 may be any shape, and the decorative pattern may enhance the external appearance of the lamp cover.
Preferably, the method for accurately positioning the center point of the blow-molded lampshade comprises the following steps:
p1, drying PMMA raw material particles through a drying box;
p2, adding the dried PMMA raw material particles into a feeding box of an injection molding machine for heating, and then performing injection molding to form strip-shaped plates;
p3, cutting the strip-shaped plate into a square plate with the same width as the strip-shaped plate through a cutting machine;
p4, putting the square plate spraying processing protective agent into an extruder type cavity for heating and extruding to obtain a semi-finished product;
p5, taking out the semi-finished product which is fastened, heated and extruded, and then directly putting the semi-finished product into a blow molding machine for blow molding, wherein when the semi-finished product is placed, the semi-finished product needs to be clamped on a mold core of the blow molding machine, a finished product with burrs is obtained through blow molding, and the burrs are easily removed through extrusion of the blow molding machine;
p6, taking out the finished product with the rough edge, then manually removing the rough edge, and then placing the finished product in a finished product box.
Preferably, the drying temperature of the P1 step is eighty to ninety degrees celsius and the drying time is three to four hours.
Preferably, the injection molding heating temperature of the P2 step is two hundred and ten to two hundred and forty degrees celsius.
Preferably, the cutting tolerance of the P3 step is plus or minus three millimeters and the thickness tolerance is plus or minus a half millimeter.
According to the method for accurately positioning the central point of the blown lampshade, provided by the invention, the square base material plate is obtained by performing injection molding and shearing on the raw materials, so that a worker can conveniently and quickly determine the central position of the square base material plate during subsequent processing, the square base material plate is heated and extruded to form the groove capable of being accurately positioned, and the semi-finished product is not required to be preheated during blowing by heating of an extruder, so that not only is the time saved, but also the central point of the lampshade can be accurately positioned during processing, and the finished product quality of the lampshade is greatly improved.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (9)
1. A method for accurately positioning the central point of a blow-molded lampshade comprises a base material plate (1), and is characterized in that: base material board (1) forms through moulding plastics, base material board (1) is equipped with panel openly (11), panel openly (11) forms recess (12) through extrusion, the shape of recess (12) is circular, base material board (1) forms lamp shade (2) through blow molding, lamp shade (2) are equipped with connecting portion (3), the surface of connecting portion (3) is equipped with bulge loop (31), the surface of lamp shade (2) is equipped with decorates decorative pattern (4), the blowing end of lamp shade (2) forms opening (5).
2. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the base material plate (1) is formed by PMMA injection molding, and the base material plate (1) is square.
3. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the groove (12) is formed by heating and extruding, and the inner diameter of the groove (12) is larger than the outer diameter of the mold core of the blow molding machine.
4. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the shape of the convex ring (31) is circular.
5. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the decorative motif (4) can be of any shape.
6. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the method for accurately positioning the central point of the blow molding lampshade comprises the following steps:
p1, drying PMMA raw material particles through a drying box;
p2, adding the dried PMMA raw material particles into a feeding box of an injection molding machine for heating, and then performing injection molding to form strip-shaped plates;
p3, cutting the strip-shaped plate into a square plate with the same width as the strip-shaped plate through a cutting machine;
p4, putting the square plate spraying processing protective agent into an extruder type cavity for heating and extruding to obtain a semi-finished product;
p5, taking out the semi-finished product which is fastened, heated and extruded, and then directly putting the semi-finished product into a blow molding machine for blow molding, wherein when the semi-finished product is placed, the semi-finished product needs to be clamped on a mold core of the blow molding machine, a finished product with burrs is obtained through blow molding, and the burrs are easily removed through extrusion of the blow molding machine;
p6, taking out the finished product with the rough edge, then manually removing the rough edge, and then placing the finished product in a finished product box.
7. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the drying temperature of the P1 step is eighty to ninety degrees celsius and the drying time is three to four hours.
8. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the injection molding heating temperature of the P2 step is two hundred and ten to two hundred and forty degrees centigrade.
9. The method for accurately positioning the central point of the blow-molded lamp cover according to claim 1, wherein the method comprises the following steps: the cutting tolerance of the step P3 is plus or minus three millimeters, and the thickness tolerance is plus or minus zero five millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621283.7A CN112026141A (en) | 2020-07-01 | 2020-07-01 | Method for accurately positioning center point of blow-molded lampshade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621283.7A CN112026141A (en) | 2020-07-01 | 2020-07-01 | Method for accurately positioning center point of blow-molded lampshade |
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| Publication Number | Publication Date |
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| CN112026141A true CN112026141A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010621283.7A Pending CN112026141A (en) | 2020-07-01 | 2020-07-01 | Method for accurately positioning center point of blow-molded lampshade |
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| CN (1) | CN112026141A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192401A (en) * | 1996-11-18 | 1998-09-09 | 住友化学工业株式会社 | Method for mfg. plastic articles having caving shape |
| CN103692640A (en) * | 2013-12-17 | 2014-04-02 | 叶斌 | Automatic forming machine and production method for lampshade |
| CN106217827A (en) * | 2016-07-12 | 2016-12-14 | 金敏 | The production technology of a kind of lamp box lampshade and the equipment of production thereof |
| CN106273359A (en) * | 2016-09-23 | 2017-01-04 | 厦门普拉米达光电科技有限公司 | A kind of LED plastics draw tail cell-shell processing technology and equipment |
| CN109624269A (en) * | 2018-12-13 | 2019-04-16 | 欧普照明股份有限公司 | Lampshade and lamp shade forming process |
-
2020
- 2020-07-01 CN CN202010621283.7A patent/CN112026141A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192401A (en) * | 1996-11-18 | 1998-09-09 | 住友化学工业株式会社 | Method for mfg. plastic articles having caving shape |
| CN103692640A (en) * | 2013-12-17 | 2014-04-02 | 叶斌 | Automatic forming machine and production method for lampshade |
| CN106217827A (en) * | 2016-07-12 | 2016-12-14 | 金敏 | The production technology of a kind of lamp box lampshade and the equipment of production thereof |
| CN106273359A (en) * | 2016-09-23 | 2017-01-04 | 厦门普拉米达光电科技有限公司 | A kind of LED plastics draw tail cell-shell processing technology and equipment |
| CN109624269A (en) * | 2018-12-13 | 2019-04-16 | 欧普照明股份有限公司 | Lampshade and lamp shade forming process |
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Application publication date: 20201204 |
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| RJ01 | Rejection of invention patent application after publication |