CN116352992A - Mould with mould inboard runner cuts off function - Google Patents
Mould with mould inboard runner cuts off function Download PDFInfo
- Publication number
- CN116352992A CN116352992A CN202310630173.0A CN202310630173A CN116352992A CN 116352992 A CN116352992 A CN 116352992A CN 202310630173 A CN202310630173 A CN 202310630173A CN 116352992 A CN116352992 A CN 116352992A
- Authority
- CN
- China
- Prior art keywords
- cutting
- mold
- gate
- pouring
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 144
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 244000309464 bull Species 0.000 description 6
- 238000004513 sizing Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a die with a function of cutting off a gate at the inner side of the die, which belongs to the technical field of dies and comprises: a mold plate on which a gate is provided; the pouring gate comprises an upper die holder and a lower die holder, a die cavity communicated with the pouring gate is formed between the upper die holder and the lower die holder, and a pouring gate is formed between the pouring gate and the die cavity, wherein the pouring gate comprises a first pouring gate and a second pouring gate; the cutting mechanism is arranged in the upper die holder, and the output end of the cutting mechanism is provided with a cutting knife, wherein the cutting direction of the cutting knife is mutually perpendicular to the pouring direction of the injected liquid entering the first pouring channel from the pouring gate, and the cutting direction of the cutting knife is mutually parallel to the pouring direction of the injected liquid entering the die cavity from the second pouring channel. According to the invention, the glue injection direction of the injection liquid in the second pouring channel and the cutting direction of the cutting knife are mutually parallel when the injection liquid in the second pouring channel flows into the die cavity, so that the injection liquid in the second pouring channel is prevented from being extruded by the cutting knife during cutting, the bulge on the A surface of a molded product is prevented, and the consistency and uniformity of the product density are ensured.
Description
Technical Field
The invention belongs to the technical field of dies, and relates to a die with a die inner side gate cutting function.
Background
The mould refers to various moulds and tools used for injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping and other methods to obtain the required products in industrial production, in short, the mould is a tool used for manufacturing molded articles, the tool is composed of various parts, and different moulds are composed of different parts, and the processing of the appearance of the articles is realized mainly through the change of the physical state of the molded materials, namely the model is named as an industrial master.
After the plastic product is injection molded, some sizing material still remains between the gate and the product, so that the residual sizing material and the molded product need to be cut before the product is demoulded, thereby facilitating the demould of the product.
Chinese patent (CN 214820536U) discloses an in-mold cutting and separating side gate injection mold based on an injection mold, which comprises an upper mold base, a lower mold base and a mold cavity arranged at the top of the lower mold base, wherein a die cutting mechanism is arranged in the upper mold base; the die cutting mechanism comprises a first electric push rod, a movable groove is formed in the upper die holder, fixing grooves are fixedly connected to the inner side of the upper die holder and located on two sides of the movable groove, die cutters are fixedly connected to the top of the inner wall of the fixing grooves through buffer springs, a pressing rod penetrating through the inner portion of the fixing grooves is movably connected to the inner portion of the movable groove, and one end of the pressing rod located in the fixing groove is fixedly connected with the top of each die cutter. This side gate injection mold based on injection mold's in-mold cutting separation can realize realizing the automatic excision of remaining sizing material in injection mold inside, need not to take out the product through artifical excision for excision efficiency and alleviateed the labour.
Above-mentioned side gate injection mold, it can extrude the residual sizing material in the runner to product surface one side through cross cutting mechanism when cutting to lead to product surface sizing material to pile up and form "bulge", and then lead to the density inhomogeneous of whole product, reduced the quality of product.
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a die with an in-die gate cutting function, which can avoid the extrusion of sizing materials during in-die blanking and improve the molding quality of products.
The aim of the invention can be achieved by the following technical scheme: a mold having an in-mold gate cutting function, comprising:
a mold plate on which a gate is provided;
the injection device comprises an upper die holder and a lower die holder, wherein a die cavity communicated with a pouring gate is formed between the upper die holder and the lower die holder, and a pouring gate is formed between the pouring gate and the die cavity, wherein the pouring gate comprises a first pouring gate arranged along the vertical direction and a second pouring gate arranged along the horizontal direction and communicated with the first pouring gate, and the injection liquid enters the die cavity along the first pouring gate and the second pouring gate in the lateral direction through the pouring gate;
the cutting mechanism is arranged in the upper die holder, the output end of the cutting mechanism is provided with a cutting knife, the cutting direction of the cutting knife is mutually perpendicular to the pouring direction of the pouring liquid entering the first pouring channel from the pouring gate, the cutting direction of the cutting knife is mutually parallel to the pouring direction of the pouring liquid entering the die cavity from the second pouring channel, and after a product in the die cavity is molded, the connection between residual liquid in the second pouring channel and the molded product in the die cavity is cut off through the cutting knife.
In the mold with the mold inner side gate cutting function, the plane of one end of the second runner connected with the first runner is a first plane, the plane of one end of the second runner connected with the mold cavity is a second plane, and a height difference exists between the first plane and the second plane, wherein the cutting position of the cutting knife is located between the first plane and the second plane, and the injection liquid is lifted when flowing from the first plane to the second plane.
In the above-mentioned mould with mould inboard runner cuts off function, cutting mechanism includes the driving piece, and the switching-over structure that links to each other with the output of driving piece, and the cutting knife links to each other with the switching-over structure, wherein, the output direction of driving piece is parallel to the cutting direction of cutting knife each other, and the opposite direction.
In the above mold with the mold inner gate cutting function, a height difference exists between a plane of the upper output end of the driving member and a plane of the cutting position of the cutting knife, and the plane of the upper output end of the driving member is close to one side of the mold plate, and the plane of the cutting position of the cutting knife is far away from one side of the mold plate.
In the above-mentioned mould with mould inboard runner cuts off function, be provided with the installation passageway on the upper die base, and this installation passageway includes first passageway and the second passageway of intercommunication each other, and wherein, first passageway is located the surface of upper die base, and the second passageway slant stretches into in the upper die base and runs through the upper die base.
In the above-mentioned mould with mould inboard runner cuts off function, the switching-over structure includes the slider that links to each other with the driving piece output, and with slider swivelling joint's bull stick, and the slider is located first passageway, and the bull stick is located the second passageway, wherein, the cutting knife is connected on the bull stick, and slider and cutting knife are located the both ends of bull stick.
In the above-mentioned mould with mould inboard runner cuts off function, be provided with the base between upper die base and die holder, and this base installs on the die holder, wherein, be provided with the cavity that is linked together with the second passageway in the base, and be provided with on the chamber wall of cavity with bull stick swivelling fit's bearing, connect the cutting knife on the bull stick and be close to the chamber bottom of cavity, wherein, still be provided with the breach that is linked together with the cavity on the base, this breach is as the business turn over passageway of cutting knife tool bit.
In the mold with the mold inner gate cutting function, the guide block is arranged in the first channel and is connected in the first channel through the fastener, wherein the guide block is in sliding fit with the sliding block.
In the above-mentioned mould with mould inboard runner cutting function, be provided with two die cavities between upper die base and the die holder, and every die cavity outwards draws forth the second and waters to first runner, wherein, be provided with two shutdown mechanism in the upper die base to be provided with the cutting knife at every shutdown mechanism's output, cut off the connection between the residual liquid in corresponding die cavity interior shaping product and the second through two shutdown mechanism synchronous drive corresponding cutting knife.
In the mold with the mold inner gate cutting function, the two cutting mechanisms are oppositely arranged, and the output directions of the corresponding driving pieces in the two cutting mechanisms are parallel to each other, wherein when the output ends of the two driving pieces relatively move, cutting between the corresponding molded product in the mold cavity and the residual injection liquid in the second pouring gate is realized; when the output ends of the two driving parts move oppositely, the reset of the corresponding cutting knife is realized.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the die with the function of cutting off the pouring gate at the inner side of the die, the glue injection direction of the injection liquid in the second pouring gate flowing into the die cavity is parallel to the cutting direction of the cutting knife, so that the cutting knife is prevented from extruding the injection liquid in the second pouring gate during cutting, the bulge of the A surface of a molded product is prevented, and the consistency and uniformity of the density of the product are ensured;
(2) Because the space of the cutting part is narrow, the moving stroke of the cutting knife is short, and the output stroke of the driving piece is generally long, the large stroke of the driving piece can be changed into the small stroke of the cutting knife through the reversing structure, and the occupied space of the whole cutting mechanism on the upper die holder can be reduced, so that the strength of the whole upper die holder is improved;
(3) The steering mechanism not only can realize the steering of the output direction of the driving piece and the cutting direction of the cutting knife, but also can enlarge the relative distance between the driving piece and the cutting knife, so that the driving piece, part of the steering mechanism can be arranged on the surface of the upper die holder, the driving piece and part of the steering mechanism are prevented from being arranged on the upper die holder through holes, the processing technology of the upper die holder is reduced, and the strength of the whole upper die holder can be improved.
Drawings
Fig. 1 is a schematic structural view of a mold having an in-mold gate cutting function according to the present invention.
Fig. 2 is a schematic partial structure of a mold having an in-mold gate cutting function according to the present invention.
Fig. 3 is a schematic view of the mold of fig. 2 from another perspective.
Fig. 4 is a cross-sectional view of A-A shown in fig. 3.
FIG. 5 is a schematic view of a cutting mechanism according to a preferred embodiment of the present invention.
FIG. 6 is a schematic view showing a partial structure of a cutting mechanism according to a preferred embodiment of the present invention.
100, templates in the figure; 110. a gate; 200. an upper die holder; 210. a first runner; 220. a first channel; 230. a second channel; 300. a lower die holder; 310. a second runner; 400. a mold cavity; 500. a cutting mechanism; 510. a cutting knife; 520. a driving member; 530. a reversing structure; 531. a slide block; 532. a rotating rod; 533. a bearing; 534. a guide block; 540. a base; 541. a cavity; 542. a notch; 543. a first support; 544. and a second support.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
As shown in fig. 1 to 6, the present invention provides a mold having an in-mold gate cutting function, comprising:
a mold plate 100 having a gate 110 provided thereon;
the injection molding machine comprises an upper die holder 200 and a lower die holder 300, wherein a die cavity 400 communicated with a gate 110 is formed between the upper die holder 200 and the lower die holder 300, and a runner is formed between the gate 110 and the die cavity 400, wherein the runner comprises a first runner 210 arranged along the vertical direction and a second runner 310 arranged along the horizontal direction and communicated with the first runner 210, and injection liquid enters the die cavity 400 along the first runner 210 and the second runner 310 laterally through the gate 110;
the cutting mechanism 500 is installed in the upper die holder 200, and a cutting knife 510 is disposed at an output end of the cutting mechanism 500, wherein a cutting direction of the cutting knife 510 and a pouring direction of the pouring liquid entering the first runner 210 from the gate 110 are mutually perpendicular, a cutting direction of the cutting knife 510 and a pouring direction of the pouring liquid entering the die cavity 400 from the second runner 310 are mutually parallel, and after a product in the die cavity 400 is molded, connection between residual liquid in the second runner 310 and a molded product in the die cavity 400 is cut off by the cutting knife 510.
In the prior art, there has been disclosed an in-mold cut-and-separate side gate 110 injection mold based on an injection mold, in which a cutting direction of a cutter 510 in the side gate 110 injection mold is parallel to a casting direction of a casting liquid from the gate 110 into the first runner 210, and the cutting direction of the cutter 510 is perpendicular to the casting direction of the casting liquid from the second runner 310 into the cavity 400. That is, the cutting direction of the cutter 510 is a vertical direction, so that when the cutter 510 cuts off the residual liquid in the second runner 310 and the product in the mold cavity 400, the injection liquid in the second runner 310 is extruded from the side close to the cutter 510 to the side far from the cutter 510, wherein the side far from the cutter 510 is the a surface of the product in the mold cavity 400, and the side close to the cutter 510 is the B surface of the product in the mold cavity 400. Namely, if the cutting direction in the prior art is adopted, the injection liquid in the B surface of the product is extruded to the A surface of the product, so that the injection liquid amount of the A surface of the product is increased, a bulge is formed, the uniformity and consistency of the density of the product cannot be realized, and the quality of the product is affected.
In this embodiment, the direction of the injection liquid in the second runner 310 is parallel to the cutting direction of the cutting knife 510 when the injection liquid in the second runner 310 flows into the mold cavity 400, so that the cutting knife 510 is prevented from extruding the injection liquid in the second runner 310 during cutting, and further, the "bulge" on the surface a of the molded product is prevented, and the consistency and uniformity of the product density are ensured.
It should be noted that, the plane of the end of the second runner 310 connected to the first runner 210 is a first plane, the plane of the end of the second runner 310 connected to the mold cavity 400 is a second plane, and a height difference exists between the first plane and the second plane, where the cutting position of the cutter 510 is located between the first plane and the second plane, and the "lifting" of the injection liquid is realized when the injection liquid flows from the first plane to the second plane.
Preferably, the cutting mechanism 500 includes a driving member 520, and a reversing structure 530 connected to an output end of the driving member 520, and the cutter 510 is connected to the reversing structure 530, wherein an output direction of the driving member 520 and a cutting direction of the cutter 510 are parallel to each other and opposite to each other.
It should be noted that, because the space of the cutting portion is narrower, the moving stroke of the cutting knife 510 is shorter, and the output stroke of the driving member 520 is generally longer, so that, through the reversing structure 530, on one hand, the large stroke of the driving member 520 can be changed into the small stroke of the cutting knife 510, and on the other hand, the occupied space of the whole cutting mechanism 500 on the upper die holder 200 can be reduced, and the strength of the whole upper die holder 200 can be improved.
It is further noted that there is a height difference between the plane of the output end of the driving member 520 and the plane of the cutting position of the cutter 510, and the plane of the output end of the driving member 520 is close to the side of the template 100, and the plane of the cutting position of the cutter 510 is far from the side of the template 100.
It should be noted that, through the reversing structure 530, not only the output direction of the driving member 520 and the cutting direction of the cutting blade 510 can be turned, but also the relative distance between the driving member 520 and the cutting blade 510 can be enlarged, so that the driving member 520 and part of the reversing structure 530 can be mounted on the surface of the upper die holder 200, and the driving member 520 and part of the reversing structure 530 are prevented from being mounted on the upper die holder 200 by punching, thereby reducing the processing process of the upper die holder 200 and improving the strength of the whole upper die holder 200.
Further preferably, the upper die holder 200 is provided with a mounting channel, and the mounting channel includes a first channel 220 and a second channel 230 that are mutually communicated, wherein the first channel 220 is located on the surface of the upper die holder 200, and the second channel 230 obliquely extends into the upper die holder 200 and penetrates through the upper die holder 200.
Preferably, the reversing mechanism 530 includes a slider 531 coupled to the output end of the driver 520, and a rotating bar 532 rotatably coupled to the slider 531, with the slider 531 being positioned in the first channel 220 and the rotating bar 532 being positioned in the second channel 230, wherein the cutter 510 is coupled to the rotating bar 532, and the slider 531 and the cutter 510 are positioned at both ends of the rotating bar 532.
It is further noted that, in order to ensure the reliability of the rotating rod 532 during the rotation process and the flatness of the moving track of the cutter 510, a base 540 may be disposed between the upper die holder 200 and the lower die holder 300, and the base 540 is mounted on the lower die holder 300, wherein a cavity 541 communicating with the second channel 230 is disposed in the base 540, a bearing 533 rotationally matched with the rotating rod 532 is disposed on a cavity wall of the cavity 541, the cutter 510 connected to the rotating rod 532 is close to a cavity bottom of the cavity 541, and a notch 542 communicating with the cavity 541 is further disposed on the base 540, where the notch 542 is used as an access channel for a cutter head of the cutter 510.
It should be noted that, for convenience of assembly, the base 540 is disposed with the first support 543 and the second support 544 stacked one above the other, wherein the notch 542 is disposed at a joint of the first support 543 and the second support 544.
It is further preferred that, in order to ensure the straightness of the slider 531 during the movement, a guide block 534 is provided in the first channel 220, and the guide block 534 is connected to the first channel 220 by a fastener, wherein the guide block 534 is in sliding fit with the slider 531.
Preferably, two mold cavities 400 are arranged between the upper mold base 200 and the lower mold base 300, and each mold cavity 400 is led out of the second pouring channel 310 and converged to the first pouring channel 210, wherein two cutting mechanisms 500 are arranged in the upper mold base 200, a cutting knife 510 is arranged at the output end of each cutting mechanism 500, and the corresponding cutting knife 510 is synchronously driven by the two cutting mechanisms 500 to cut off the connection between the molded product in the corresponding mold cavity 400 and the residual liquid in the second pouring channel 310.
Further preferably, the two cutting mechanisms 500 are disposed opposite to each other, and the output directions of the corresponding driving members 520 in the two cutting mechanisms 500 are parallel to each other, wherein when the output ends of the two driving members 520 are relatively moved, cutting between the molded product in the corresponding mold cavity 400 and the residual injection liquid in the second runner 310 is achieved; when the output ends of the two driving members 520 are moved in opposite directions, the reset of the corresponding cutter 510 is achieved.
It should be noted that the description of the present invention as it relates to "first", "second", "a", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "coupled," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A mold having an in-mold gate cutting function, comprising:
a mold plate on which a gate is provided;
the injection device comprises an upper die holder and a lower die holder, wherein a die cavity communicated with a pouring gate is formed between the upper die holder and the lower die holder, and a pouring gate is formed between the pouring gate and the die cavity, wherein the pouring gate comprises a first pouring gate arranged along the vertical direction and a second pouring gate arranged along the horizontal direction and communicated with the first pouring gate, and injection liquid enters the die cavity along the first pouring gate and the second pouring gate in the lateral direction through the pouring gate;
the cutting mechanism is arranged in the upper die holder, a cutting knife is arranged at the output end of the cutting mechanism, the cutting direction of the cutting knife and the pouring direction of the pouring liquid entering the first pouring channel from the pouring gate are mutually perpendicular, the cutting direction of the cutting knife and the pouring direction of the pouring liquid entering the die cavity from the second pouring channel are mutually parallel, and after the product in the die cavity is molded, the cutting knife is used for cutting off the connection between residual liquid in the second pouring channel and the molded product in the die cavity.
2. The mold with in-mold gate cutting function according to claim 1, wherein a plane of an end of the second runner connected to the first runner is a first plane, a plane of an end of the second runner connected to the cavity is a second plane, and a height difference exists between the first plane and the second plane, wherein a cutting position of the cutter is located between the first plane and the second plane, and a "lifting" of the injection liquid is realized when the injection liquid flows from the first plane to the second plane.
3. The mold with in-mold gate cutting function according to claim 1, wherein the cutting mechanism comprises a driving member, and a reversing structure connected to an output end of the driving member, and the cutter is connected to the reversing structure, wherein an output direction of the driving member and a cutting direction of the cutter are parallel to each other and opposite to each other.
4. A mold having an in-mold gate cutting function according to claim 3, wherein a height difference exists between a plane in which the output end of the driving member is located and a plane in which the cutting position of the cutter is located, and the plane in which the output end of the driving member is located is close to a side in which the mold plate is located, and the plane in which the cutting position of the cutter is located is away from a side in which the mold plate is located.
5. A die having an in-die gate cutting function according to claim 3, wherein an installation passage is provided on the upper die holder, and the installation passage includes a first passage and a second passage which are communicated with each other, wherein the first passage is located on a surface of the upper die holder, and the second passage extends obliquely into the upper die holder and penetrates the upper die holder.
6. The mold with an in-mold gate cutting function according to claim 5, wherein the reversing structure includes a slider connected to the output end of the driving member, and a rotating rod rotatably connected to the slider, and the slider is located in the first passage, and the rotating rod is located in the second passage, wherein the cutter is connected to the rotating rod, and the slider and the cutter are located at both ends of the rotating rod.
7. The mold with the mold gate cutting function according to claim 6, wherein a base is provided between the upper mold base and the lower mold base and is mounted on the lower mold base, wherein a concave cavity communicated with the second channel is provided in the base, a bearing rotationally matched with the rotating rod is provided on a cavity wall of the concave cavity, a cutting knife connected to the rotating rod is close to a cavity bottom of the concave cavity, and a notch communicated with the concave cavity is further provided on the base and is used as an access channel of a cutting knife head.
8. The mold with in-mold gate cutting function according to claim 6, wherein a guide block is provided in the first passage and is connected to the first passage by a fastener, wherein the guide block is in sliding engagement with the slider.
9. A die with an in-die gate cutting function according to claim 3, wherein two die cavities are provided between the upper die base and the lower die base, and each of the die cavities is led out of the second runner and converged to the first runner, wherein two cutting mechanisms are provided in the upper die base, and the cutting knife is provided at an output end of each cutting mechanism, and the connection between the molded product in the corresponding die cavity and the residual liquid in the second runner is cut off by synchronously driving the corresponding cutting knife through the two cutting mechanisms.
10. The mold with in-mold gate cutting function according to claim 9, wherein the two cutting mechanisms are disposed opposite to each other with the output directions of the corresponding driving members of the two cutting mechanisms being parallel to each other, wherein when the output ends of the two driving members are relatively moved, cutting between the corresponding in-mold molded product and the residual injection liquid in the second runner is effected; when the output ends of the two driving parts move oppositely, the reset of the corresponding cutting knife is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310630173.0A CN116352992B (en) | 2023-05-31 | 2023-05-31 | Mould with mould inboard runner cuts off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310630173.0A CN116352992B (en) | 2023-05-31 | 2023-05-31 | Mould with mould inboard runner cuts off function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116352992A true CN116352992A (en) | 2023-06-30 |
| CN116352992B CN116352992B (en) | 2023-08-29 |
Family
ID=86941889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310630173.0A Active CN116352992B (en) | 2023-05-31 | 2023-05-31 | Mould with mould inboard runner cuts off function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116352992B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10272657A (en) * | 1997-03-31 | 1998-10-13 | Pentel Kk | Ring gate of injection mold device |
| JP2003071886A (en) * | 2001-09-05 | 2003-03-12 | Sekisui Chem Co Ltd | Mold for injection molding |
| JP2006062369A (en) * | 1997-05-28 | 2006-03-09 | Mitsubishi Engineering Plastics Corp | Mold assembly for molding thermoplastic resin and method for manufacturing molded article |
| CN201325156Y (en) * | 2008-12-26 | 2009-10-14 | 深圳创维－Rgb电子有限公司 | An intramode automatic hot-cutting side watering mouth structure and injection mold |
| CN202911100U (en) * | 2012-11-13 | 2013-05-01 | 南通昱品通信科技有限公司 | Cut-off machine for injection molding casting head of optical fiber terminal box |
| CN210231448U (en) * | 2019-05-16 | 2020-04-03 | 佛山市航亚铝业有限公司 | LED waterproof power supply aluminum shell mold |
| CN113400599A (en) * | 2021-04-30 | 2021-09-17 | 常州煜明电子股份有限公司 | In-mold automatic cutting side gate mechanism suitable for injection mold |
| CN214820536U (en) * | 2021-04-09 | 2021-11-23 | 广州友成机工有限公司 | Side sprue injection mold based on in-mold cutting separation of injection mold |
| CN217573903U (en) * | 2022-01-18 | 2022-10-14 | 宁波海得力克自动化科技有限公司 | In-mold cutting and flattening mechanism |
| CN218660298U (en) * | 2022-09-21 | 2023-03-21 | 舒美实业(河北)有限公司 | Plastic product cutting pouring gate equipment |
-
2023
- 2023-05-31 CN CN202310630173.0A patent/CN116352992B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10272657A (en) * | 1997-03-31 | 1998-10-13 | Pentel Kk | Ring gate of injection mold device |
| JP2006062369A (en) * | 1997-05-28 | 2006-03-09 | Mitsubishi Engineering Plastics Corp | Mold assembly for molding thermoplastic resin and method for manufacturing molded article |
| JP2003071886A (en) * | 2001-09-05 | 2003-03-12 | Sekisui Chem Co Ltd | Mold for injection molding |
| CN201325156Y (en) * | 2008-12-26 | 2009-10-14 | 深圳创维－Rgb电子有限公司 | An intramode automatic hot-cutting side watering mouth structure and injection mold |
| CN202911100U (en) * | 2012-11-13 | 2013-05-01 | 南通昱品通信科技有限公司 | Cut-off machine for injection molding casting head of optical fiber terminal box |
| CN210231448U (en) * | 2019-05-16 | 2020-04-03 | 佛山市航亚铝业有限公司 | LED waterproof power supply aluminum shell mold |
| CN214820536U (en) * | 2021-04-09 | 2021-11-23 | 广州友成机工有限公司 | Side sprue injection mold based on in-mold cutting separation of injection mold |
| CN113400599A (en) * | 2021-04-30 | 2021-09-17 | 常州煜明电子股份有限公司 | In-mold automatic cutting side gate mechanism suitable for injection mold |
| CN217573903U (en) * | 2022-01-18 | 2022-10-14 | 宁波海得力克自动化科技有限公司 | In-mold cutting and flattening mechanism |
| CN218660298U (en) * | 2022-09-21 | 2023-03-21 | 舒美实业(河北)有限公司 | Plastic product cutting pouring gate equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116352992B (en) | 2023-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209794452U (en) | Automobile door plate injection mold based on in-mold gate cutting technology | |
| CN116352992B (en) | Mould with mould inboard runner cuts off function | |
| CN211518290U (en) | Cutting and bending structure in injection mold and injection molding device | |
| CN215544164U (en) | Take cut-out press of waste material guide structure | |
| CN214562672U (en) | Gate shutdown mechanism and injection mold in mould | |
| CN210047016U (en) | Tertiary line position demolding structure of injection mold | |
| CN209999631U (en) | Flange forming die of washing machine | |
| CN210651637U (en) | Quick drawing of patterns auto parts injection mold | |
| CN210011242U (en) | LED lamp lampshade mould | |
| CN221475351U (en) | Automatic gate shearing mechanism | |
| CN112757583A (en) | Injection mold for ejecting injection molding piece and operation method | |
| CN216506543U (en) | Sprue cutting device after product demoulding | |
| CN208881093U (en) | The small slant-top core-pulling device of mold | |
| CN219988446U (en) | Mould for plastic uptake shaping | |
| CN219133065U (en) | Processing and forming device for precise plastic parts | |
| CN219256377U (en) | Opening and closing structure of die | |
| CN216544442U (en) | Mould with trimming mechanism | |
| CN210257100U (en) | Enclose injection moulding mould before electric motor car with hydro-cylinder closed gate mechanism of cutting | |
| CN215849439U (en) | Simple die inner cutting mechanism | |
| CN217047297U (en) | Product mold with inclined holes | |
| CN213701475U (en) | Shaping cutting die based on decomposition rule in mechanics | |
| CN221540553U (en) | Mold insert demolding linkage mechanism | |
| CN217665651U (en) | Rapid forming device for aluminum alloy shell production | |
| CN219427342U (en) | Die structure capable of automatically trimming stub bars | |
| CN220700275U (en) | Injection molding die device with cutting function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |