CN213797880U - Lens gate cutting die device with improved lower die - Google Patents

Lens gate cutting die device with improved lower die Download PDF

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Publication number
CN213797880U
CN213797880U CN202021953037.3U CN202021953037U CN213797880U CN 213797880 U CN213797880 U CN 213797880U CN 202021953037 U CN202021953037 U CN 202021953037U CN 213797880 U CN213797880 U CN 213797880U
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die
guide
lens
cutter
backward
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李章鲁
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Co Ms Co ltd
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Co Ms Co ltd
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Priority claimed from KR1020190146333A external-priority patent/KR102324905B1/en
Priority claimed from KR2020190004794U external-priority patent/KR20210001239U/en
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Abstract

The utility model discloses a lens runner cutting die device with an improved lower die, which comprises an upper die and a lower die, wherein the upper die comprises a first cutter, the periphery of the lower die is connected with a second cutter, the lower die comprises an inner die, an outer die, a cutter fixing part and a first guiding part, the inner die is provided with a central area which can configure the central part of an injection molding piece on the inner die, the outer die is uniformly arranged along the periphery of the inner die at intervals, the outer die is provided with a lens part placing groove for containing the lens part of the injection molding piece, the cutter fixing part is arranged in a gap formed by the outer side wall of the inner die and the inner side wall of the outer die, and the cutter fixing part is provided with a second cutter crossing the gate part of the injection molding piece; the first guide portion is used for fixing the gate main body portion and preventing movement when the gate portion is cut. The utility model discloses can be more accurate fixed lens injection molding, guarantee the good cutting quality of lens runner, be favorable to improving the yield, reduction in production cost.

Description

Lens gate cutting die device with improved lower die
Technical Field
The utility model relates to a lens runner cutting technical field specifically is a lens runner cutting die device of bed die has been improved.
Background
Application No. KR1019910002271, publication date 1999-05-15, wherein fig. 10 is the abstract drawing in the patent application No. KR100183636B1, and fig. 11 is fig. 2 in application No. KR100183636B 1. Claim 1 of the patent discloses a gate cutoff device for injection molded parts, characterized by comprising: a gate cutting mechanism mounted on the upper frame and lifted by a lifting mechanism; an injection-molded part support mechanism which is mounted on the lower frame right below the gate cutting mechanism and which is transferred forward and backward by means of a forward and backward transfer mechanism; and the positioning mechanisms are arranged on two sides of the lower frame on which the injection molding part supporting mechanism is arranged, so that the injection molding part supported on the injection molding part supporting mechanism is positioned.
In addition, claim 2 in application No. KR1019910002271 discloses a gate intercepting apparatus of the injection molded part according to claim 1, characterized by comprising: a transfer plate mounted so that the gate cutting mechanism can be moved up and down by a predetermined distance by a cylinder mounted on an upper frame; a pair of bracket supporting bodies fixedly mounted on the bottom surface of the transfer plate; a carriage which is coupled to the carriage support body so as to be slidable left and right, and which includes a tool and a heater for heating the tool; and a micrometer having one end coupled to the carriage to allow the carriage to be transferred to the left and right.
In the prior art, the problem is that the device is huge, and even though the device is provided with a precise adjusting means, even in the case of lens injection molding pieces with the same specification, the position (width) is fixed incorrectly due to the difference of the interval between adjacent gates, so that the problem of poor cutting angle during cutting or poor cutting position (error in radial direction) due to error in center alignment occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lens runner cutting die device of bed die has been improved for solve following problem, even under the condition of the lens injection molding of the same specification, owing to adjoin posture (width) fixed error that the interval difference between the runner leads to, take place to cut the angle when cutting bad, or take place to cut the bad problem of position (radius direction error) because of the center alignment mistake.
The utility model aims at providing a lens runner cutting die set device of bed die has been improved, can the dismouting mode be equipped with the first guide portion of the multilateral shape that has big or small width difference in the head portion of each branch of runner main part, and can finely adjust (even the same specification goods takes place the mistake) and fix the width between the runner that the support lens injection molding adjoined, cut the angle when can solving the cutting because the fixed mistake of posture (width) leads to bad.
The utility model aims at providing a lens runner cutting die device of bed die has been improved possesses and to retreat the fixed second of direction slip and advance and retreat formula guide portion along advancing, accurately carries out the center and aligns to the solution takes place to cut the bad problem of position (radius direction error) location.
The adopted technical scheme is as follows:
the utility model provides a lens runner cutting die set of bed die has been improved, lens runner cutting device includes mould and bed die, it includes the first cutter of liftable to go up the mould, the periphery of bed die is connected with the second cutter that corresponds with first cutter position, the bed die includes:
the inner side mold is provided with a central area which can configure the central part of the injection molding piece at the center of the inner mold and a guide area for positioning the injection molding piece;
the outer side mold is uniformly arranged along the periphery of the inner side mold at intervals, a lens part placing groove for containing a lens part of an injection molding piece is formed in the outer side mold, and an opening is formed in the inner side wall of the outer side mold by the lens part placing groove;
the cutter fixing part is arranged in a gap formed by the outer side wall of the inner side mold and the inner side wall of the outer side mold, and a second cutter crossing the gate part of the injection molding piece is arranged on the cutter fixing part;
the injection molding part comprises a first guide part, a second guide part and a gate main body part, wherein the first guide part is used for fixing the gate main body part, the first guide part is convexly arranged in a non-guide area on the inner side mold, the first guide part is detachably connected with the upper surface of the inner side mold, and the first guide part can fix the gate main body part of the injection molding part to prevent the gate main body part from moving when the gate part is cut.
On the basis of the technical scheme, the first guide part comprises a side wall, the side wall is a polygonal prism with 6-10 sides, the distance between one surface and the opposite surface in the polygonal prism is different from the distance between the opposite surface and the other surface, and the side wall is formed by upwards protruding from the upper surface of the guide area.
In addition to the above, the first guide portion side wall has a lower guide portion formed in a rounded shape having a shape gradually widening downward, the side wall lower guide portion is a polygonal prism having 6 to 10 sides, a distance between one side and an opposing surface of the polygonal prism and a distance between the opposing surface and the other side are different, and the upper guide portion of the side wall is formed in a shape narrowing upward and widening downward for guiding the gate main body portion.
On the basis of the technical scheme, a plurality of insertion grooves which are uniformly distributed and are in linear radiation are concavely formed in a non-guiding area on the inner side die, the symmetrical line of two adjacent insertion grooves forms an included angle of 30-60 degrees, a polygonal cylindrical fixing part which is integrally formed and has the same number of sides as the bottom surface of the first guiding part is arranged at the guiding lower part of the first guiding part, the polygonal fixing part is arranged in the insertion grooves, a vertical through hole is formed in the center of the first guiding part, a counter bore bottom surface formed by a step hole is arranged in the through hole, the multi-hole guiding die further comprises a first fixing bolt, the bottom surface of the head of the first fixing bolt is in contact with the bottom surface of the counter bore, the first fixing bolt penetrates through the through hole and is in threaded connection with a first thread fixing groove arranged on the insertion grooves, and therefore the first guiding part is detachably connected with the guiding area on the inner side die.
In addition to the above technical means, the injection molding machine further comprises a plurality of second forward and backward movement type guide parts, wherein the front end pressurizing parts of the second forward and backward movement type guide parts radially abut against the outer peripheral side wall of the central part of the injection molding part at a plurality of points; the non-guide area on the inner side die is concavely provided with a plurality of insertion grooves which are uniformly distributed and are in linear radial shape, the symmetrical lines of two adjacent insertion grooves form an included angle of 30-60 degrees, the second forward and backward type guide part and the first guide part are arranged in the same insertion groove along the same radial direction, the second forward and backward type guide part is positioned on the inner side, and the first guide part is positioned on the outer side.
On the basis of the technical scheme, the second forward and backward type guiding part comprises a forward conical part and a backward main body part which is integrally formed with the forward conical part, the second forward and backward type guiding part is integrally narrow in front and wide in back so as to be assembled in a sliding mode along the forward and backward directions, the forward conical part comprises a front end pressing part, and the front end of the center of the pressing part is abutted to the outer side wall of the center part of the injection molding part; the second forward-backward guide part is also provided with a vertical long circular hole, and the center line of the long circular hole is collinear with the center line of the joint of the front conical part and the rear main body part; the second fixing bolt penetrates through the long circular hole, the bottom surface of the head of the second fixing bolt is in contact with the bottom surface of the counter hole and is in threaded connection with a second thread fixing groove in the upper surface of the insertion groove, and therefore the second forward and backward type guide part is connected with the insertion groove.
On the basis of the technical scheme, the upper part of the second forward and backward moving type guide part is formed in a round shape with a narrow upper part and a wide lower part, so that the outer periphery of the central part of the injection molding part is smoothly placed and guided; the upper part of the front conical part is formed in a shape of a round with a narrow top and a wide bottom, and the side surface of the lower part of the front conical part is a plane; the upper part of the main body of the rear main body part is formed in a shape of a round with a narrow upper part and a wide lower part, and the side surface of the lower part of the main body of the rear main body part is a plane.
On the basis of the technical scheme, the lower guiding part of the side wall of the first guiding part is formed by side walls of a polygonal prism with 6-10 sides, the side walls of the polygonal prism can correspondingly form a width in 3-5 directions, an indicating part indicating the corresponding width is arranged on the first guiding part, each width of the indicating part is marked with one, namely 3-5 indicating parts, and the indicating parts can be marked by Arabic numerals, Roman numerals, characters or symbols.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.
FIG. 1: the utility model discloses an embodiment lens injection molding runner cutting die device's effect picture.
FIG. 2: the utility model discloses the whole top view of lens runner cutting die device of an embodiment.
FIG. 3: the utility model discloses a whole stereogram of lens runner cutting die device of an embodiment.
FIG. 4: the utility model discloses a lens runner cutting die device of an embodiment is whole detailed stereogram 1.
FIG. 5: the utility model discloses a lens runner cutting die device of an embodiment is whole detailed stereogram 2.
FIG. 6: the utility model discloses a detailed top view of lens runner cutting die device of an embodiment.
FIG. 7: the utility model discloses a detailed structure diagram of first guide portion of an embodiment.
FIG. 8: fig. 7 is an explanatory view of the overall structure of the first guide portion.
FIG. 9: the second forward/backward guide part is illustrated in the figure.
FIG. 10: the abstract attached figure in the patent with the application number of KR 1019910002271.
FIG. 11: figure 2 of the KR1019910002271 patent.
Detailed Description
The invention will be further described with reference to the following figures and examples:
reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
A lens sprue cutting die device with an improved lower die comprises an upper die and a lower die, wherein the upper die comprises a first lifting cutter, a second cutter corresponding to the first cutter is connected to the periphery of the lower die,
as shown in fig. 1 to 3, the lower mold includes an inner mold 10, an outer mold 20, a cutter fixing portion 30, and a first guide portion 40; in fig. 1, a indicates a correct cutting position, B indicates a cutting position when the cutting position is defective due to misalignment, and C indicates a cutting position when the cutting angle is defective due to a wrong posture and width fixation of the injection mold gate portion P3. Indicated at D in fig. 3 is the same cutter cutting area.
As shown in fig. 2 to 6, the inner mold 10 has a central region 11 for disposing a central portion P1 of the injection-molded article in the center of the inner mold 10 and a guide region 15 for positioning the injection-molded article; the outer side mold 20 is uniformly arranged along the periphery of the inner side mold 10 at intervals, the outer side mold 20 is provided with lens part placing grooves 21 for accommodating lens parts P2 of the injection molding part, and the lens part placing grooves 21 are provided with openings on the inner side wall of the outer side mold 20;
as shown in fig. 2 to 6, the cutter fixing portion 30 is disposed in a gap formed between the outer sidewall of the inner mold 10 and the inner sidewall of the outer mold 20, and a second cutter crossing over the gate portion P3 of the injection molding part is disposed on the cutter fixing portion 30;
as shown in fig. 1, 2 and 7, the first guiding portion 40 is used to fix the gate main body, the first guiding portion 40 is protruded from the non-guiding area on the inner mold 10, the first guiding portion 40 is detachably connected to the upper surface of the inner mold 10, and the first guiding portion 40 is disposed between two adjacent branches in the gate main body, so that the gate main body of the injection molding part can be fixed and prevented from moving when the gate portion is cut.
As shown in fig. 2 to 7, the first guide part 40 includes a sidewall 41, the sidewall 41 is an 8-sided polygonal prism, a distance between one surface and an opposite surface of the polygonal prism is different from a distance between the opposite surface and the other surface, and the sidewall 41 is formed to protrude upward from the upper surface of the guide region 15.
The upper guide portions 41a of the side walls 41 of the first guide portion 40 are rounded in a shape gradually widening downward, the lower guide portions 41b of the side walls 41 are polygonal prisms with 8 sides, and a distance (WB1) between one surface and an opposite surface of each polygonal prism is different from a distance (WB2) between the other surface and the opposite surface of each polygonal prism, and the upper guide portions 41a of the side walls 41 are formed in a shape narrowing upward and widening downward for guiding the gate main body portion, so that the branches of the gate main body of the lens injection molding can be easily placed on both sides of the first guide portion 40. Further, the guide lower portion 41b of the side wall 41 is formed by a side wall of an 8-sided polygonal prism.
As shown in fig. 3 to 7, a plurality of uniformly distributed and linearly radial insertion grooves 16 are concavely formed in the non-guiding region on the inner mold 10, and the symmetry line of two adjacent insertion grooves 16 forms an included angle of 30, that is, 12 insertion grooves 16 are formed on the inner mold 10, and the number of the insertion grooves 16 matches with the number of branches of the gate main body for guiding and placing the gate main body.
As shown in fig. 3 to 8, the lower guide portion 41b of the first guide portion 40 is provided with a polygonal cylindrical fixing portion 43 formed integrally and having the same number of sides as the bottom surface of the first guide portion 40, the center of the first guide portion 40 is provided with a vertical through hole 45, a counter bore bottom surface 45a formed by a stepped hole is provided in the through hole 45, and the first guide portion 40 is detachably connected to the guide area 15 of the inner mold 10 by a first fixing bolt 46, wherein the bottom surface of the head portion of the first fixing bolt 46 contacts the counter bore bottom surface 45a, and the first fixing bolt 46 passes through the through hole 45 and is screwed with the first thread fixing groove 17 provided on the upper surface of the insertion groove 16. The bottom surface of the first guide portion 40 is disposed above the guide region 15, and the fixing portion 43 is disposed below the first guide portion 40 and extends into the insertion groove 16.
As shown in fig. 3 to 7 and 9, the injection molding machine further includes a plurality of second forward and backward movement type guide portions 50, and the tip end pressing portions 50a of the plurality of second forward and backward movement type guide portions 50 radially abut against the outer peripheral side wall P1a of the center portion P1 of the injection molding at a plurality of points; a plurality of insertion grooves 16 are formed in a recessed manner in a non-guiding region of the upper surface of the inner mold 10, the insertion grooves 16 are uniformly distributed and are in a linear radial shape, a symmetrical line of two adjacent insertion grooves 16 forms an included angle of 30 degrees, the second forward and backward guiding portion 50 and the first guiding portion 40 are arranged in the same insertion groove 16 along the same radial direction, the second forward and backward guiding portion 50 is located on the inner side, and the first guiding portion 40 is located on the outer side.
As shown in fig. 3 to 6 and 9, the second forward-backward guide 50 includes a forward tapered portion 51 and a rearward body portion 52 integrally formed with the forward tapered portion 51, the second forward-backward guide 50 is narrow in front and wide in back as a whole to facilitate sliding assembly in the forward-backward direction, the forward tapered portion 51 includes a front end pressing portion 50a, and a center front end of the pressing portion 50a abuts against an outer wall P1a of an injection-molded article center portion P1; the second forward-backward guide part 50 is further provided with a vertical long circular hole 55, and the central line of the long circular hole 55 is collinear with the central line of the joint of the front conical part 51 and the rear main body part 52; the second fixing bolt 57 is further included, a counter bore bottom surface formed by a stepped hole is arranged in the long round hole 55, the second fixing bolt 57 penetrates through the long round hole 55, the bottom surface of the head of the second fixing bolt 57 is in contact with the counter bore bottom surface and is in threaded connection with the second thread fixing groove 18 on the upper surface of the insertion groove 16, and therefore the second forward-backward type guide portion 50 is connected with the insertion groove 16.
The upper portion of the second forward-backward guide 50 is formed in a rounded shape with a narrow top and a wide bottom so that the outer circumferential sidewall P1a of the injection-molded article center portion P1 can be smoothly placed and guided; the tapered upper part 51a of the front tapered part 51 is formed in a rounded shape with a narrow upper part and a wide lower part, and the side surface of the tapered lower part 51b of the front tapered part 51 is a plane; the upper body portion 52a of the rear body portion 52 is formed in a rounded shape with a narrow top and a wide bottom, and the side surface of the lower body portion 52b of the rear body portion 52 is a flat surface.
As shown in fig. 7 to 8, the lower guiding portion 41b of the upper side wall of the first guiding portion 40 is formed by side walls of an 8-sided polygonal prism, the side walls of the polygonal prism can respectively form a width in 4 directions, namely WB1, WB2, WB3 and WB4, wherein WB1 > WB2 > WB3 > WB4, and the first guiding portion 40 is provided with indicating portions 41b indicating the respective widths, the indicating portions 41b are respectively marked with one width, namely, 4 in total, and the indicating portions 41b can be marked with arabic numerals, roman numerals, letters or symbols.
Wherein, the operator can identify the characters or symbols displayed by the identification portion 41b, and when the interval between the two branches on the gate main body in the injection molding part is not matched with the width value formed on the side wall 41 of the corresponding first guide portion 40, the first guide portion 40 can be rotated to set another suitable width value. The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims (8)

1. The utility model provides a lens runner cutting die set of bed die has been improved, lens runner cutting device includes mould and bed die, it includes the first cutter of liftable to go up the mould, the periphery of bed die is connected with the second cutter that corresponds with first cutter position, a serial communication port, the bed die includes:
an inner mold (10) having a center region (11) on which a center portion (P1) of an injection-molded article can be arranged at the center of the inner mold (10), and a guide region (15) for positioning the injection-molded article, provided on the upper surface of the inner mold (10);
the outer side die (20) is uniformly arranged along the periphery of the inner side die (10) at intervals, lens part placing grooves (21) used for containing lens parts (P2) of injection molding pieces are formed in the outer side die (20), and openings are formed in the inner side walls of the outer side die (20) by the lens part placing grooves (21);
the cutter fixing part (30), the cutter fixing part (30) is arranged in a gap formed by the outer side wall of the inner side die (10) and the inner side wall of the outer side die (20), and a second cutter crossing the gate part (P3) of the injection molding piece is arranged on the cutter fixing part (30);
the injection molding die comprises a first guide part (40), wherein the first guide part (40) is used for fixing a gate main body part, the first guide part (40) is arranged in a non-guide area on the upper surface of the inner side die (10) in a protruding mode, the first guide part (40) is detachably connected with the upper surface of the inner side die (10), and the first guide part (40) can fix the gate main body part of an injection molding part and prevent the gate main body part from moving when the gate part is cut.
2. The lens gate cutting mold device with an improved lower mold according to claim 1, wherein the first guide portion (40) comprises a side wall (41), the side wall (41) is a polygonal prism with 6-10 sides, the distance between one side and the opposite side in the polygonal prism is different from the distance between the opposite side and the other side, and the side wall (41) is formed to protrude upward from the upper surface of the guide region (15).
3. The lens gate cutting mold device with an improved lower mold according to claim 2, wherein the upper guide portion (41a) of the sidewall (41) of the first guide portion (40) is formed in a rounded shape with a shape gradually widening downward, the lower guide portion (41b) of the sidewall (41) is a polygonal prism having 6 to 10 sides, and a distance between one surface and an opposing surface of the polygonal prism and a distance between the opposing surface and the other surface are different, and the upper guide portion (41a) of the sidewall (41) is formed in a shape narrowing upward and widening downward for guiding the gate main body portion.
4. The lens gate cutting mold device with an improved lower mold according to claim 2, characterized in that the non-guiding area of the upper surface of the inner mold (10) is concavely formed with a plurality of insertion grooves (16) uniformly distributed and radiating in a straight line, and the symmetry line of two adjacent insertion grooves (16) forms an included angle of 30-60 degrees, the guiding lower part (41b) of the first guiding part (40) is provided with a polygonal cylindrical fixing part (43) which is integrally formed and has the same number of sides as the bottom surface of the first guiding part, and the polygonal cylindrical fixing part (43) is placed in the insertion groove (16), the center of the first guiding part (40) is provided with a vertical through hole (45), the through hole (45) is provided with a counter bore bottom surface (45a) formed by a step bore, and further comprises a first fixing bolt (46), the bottom surface of the head of the first fixing bolt (46) is contacted with the counter bore bottom surface (45a), and the first fixing bolt (46) passes through the through hole (45) and is in threaded connection with the first thread fixing groove (17) arranged on the upper surface of the insertion groove (16), so that the first guide part (40) is detachably connected with the guide area (15) on the inner side die (10).
5. The lens gate cutting die device with the improved lower die as claimed in claim 1, further comprising a plurality of second forward and backward movement type guide portions (50), wherein the front end pressing portions (50a) of the plurality of second forward and backward movement type guide portions (50) radially abut with the outer peripheral side wall (P1a) of the central portion (P1) of the injection molded piece at a plurality of points; the non-guide area on the upper surface of the inner side die (10) is concavely provided with a plurality of insertion grooves (16) which are uniformly distributed and in a linear radial shape, the symmetrical lines of two adjacent insertion grooves (16) form an included angle of 30-60 degrees, the second forward and backward type guide parts (50) and the first guide parts (40) are arranged in the same insertion groove (16) along the same radial direction, the second forward and backward type guide parts (50) are positioned on the inner side, and the first guide parts (40) are positioned on the outer side.
6. The lens gate cutting mold device with the improved lower mold according to claim 5, wherein the second forward-backward guide part (50) comprises a forward tapered part (51) and a rearward main body part (52) integrally formed with the forward tapered part (51), the second forward-backward guide part (50) is integrally narrow forward and wide backward so as to be slidably assembled in the forward-backward direction, the forward tapered part (51) comprises a front end pressing part (50a), and a central front end of the pressing part (50a) abuts against the outer peripheral side wall (P1a) of the injection molded part central part (P1); the second forward-backward guide part (50) is also provided with a vertical long circular hole (55), and the center line of the long circular hole (55) is collinear with the center line of the joint of the front conical part (51) and the rear main body part (52); the improved structure is characterized by further comprising a second fixing bolt (57), a counter bore bottom surface formed by a stepped hole is formed in the long round hole (55), the second fixing bolt (57) penetrates through the long round hole (55), the bottom surface of the head of the second fixing bolt (57) is in contact with the counter bore bottom surface and is in threaded connection with a second thread fixing groove (18) on the upper surface of the insertion groove (16), and therefore the second forward-backward type guide portion (50) is connected with the insertion groove (16).
7. The lens gate cutting mold device with an improved lower mold according to claim 6, wherein the upper part of the second forward-backward guide (50) is formed in a rounded shape with a narrow top and a wide bottom so that the outer peripheral sidewall (P1a) of the center part (P1) of the injection molded part is smoothly placed and guided; the upper tapered part (51a) of the front tapered part (51) is formed in a rounded shape with a narrow top and a wide bottom, and the side surface of the lower tapered part (51b) of the front tapered part (51) is a plane; the upper body part (52a) of the rear main body part (52) is formed in a rounded shape with a narrow top and a wide bottom, and the side surface of the lower body part (52b) of the rear main body part (52) is a plane.
8. The lens gate cutting mold device with the improved lower mold according to claim 2, wherein the lower guiding portion (41b) of the upper side wall (41) of the first guiding portion is formed by side walls of a polygonal prism with 6-10 sides, the side walls of the polygonal prism can respectively form a width in 3-5 directions, and the side wall (41) of the first guiding portion (40) is provided with an indicating portion (41d) for indicating the corresponding width, the indicating portion (41d) is marked with one in each width, namely 3-5 in total, and the indicating portion (41d) can be marked by Arabic numerals, Roman numerals, letters or symbols.
CN202021953037.3U 2019-11-15 2020-09-09 Lens gate cutting die device with improved lower die Active CN213797880U (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2019-0146333 2019-11-15
KR1020190146333A KR102324905B1 (en) 2019-11-15 2019-11-15 Lens Gate Cutting Device
KR20-2019-0004794 2019-11-27
KR2020190004794U KR20210001239U (en) 2019-11-27 2019-11-27 Lens Gate Cutting Device

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CN213797880U true CN213797880U (en) 2021-07-27

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0183636B1 (en) * 1991-02-11 1999-05-15 안시환 Gate cutting apparatus of the injection material
US5596915A (en) * 1995-04-10 1997-01-28 Eastman Kodak Company Method and apparatus for precision degating mechanism
JP4885282B2 (en) * 2010-02-01 2012-02-29 ネオハナテク カンパニー リミテッド Gate cutting device for injection molded lens
JP5985018B1 (en) * 2015-07-09 2016-09-06 株式会社フジクラ Gate cut method and gate cut device
CN207617049U (en) * 2017-12-16 2018-07-17 台州市黄岩奇泓智能科技有限公司 A kind of automatic cutting machine of pipe fitting joint cast gate
CN209504797U (en) * 2018-12-06 2019-10-18 常州纳乐科思光学有限公司 It is a kind of intensity lens cut gating apparatus

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