CN114851483A - Injection molding liquid-transferring head production mold - Google Patents
Injection molding liquid-transferring head production mold Download PDFInfo
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- CN114851483A CN114851483A CN202210789906.0A CN202210789906A CN114851483A CN 114851483 A CN114851483 A CN 114851483A CN 202210789906 A CN202210789906 A CN 202210789906A CN 114851483 A CN114851483 A CN 114851483A
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- plate
- injection molding
- panel
- ejector sleeve
- holes
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 12
- 235000000396 iron Nutrition 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect 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
- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
Abstract
The invention relates to an injection liquid-transferring head production mold which comprises a front mold and a rear mold, wherein the front mold comprises an A plate, a stripper plate, a splitter plate and a panel, the rear mold comprises a B plate, square iron, an ejector pin panel, an ejector pin bottom plate, a fixing plate and a bottom plate, an injection molding area is arranged on the A plate, a first through hole is formed in each injection molding area, a hot flow nozzle is arranged inside the splitter plate, a molding area is arranged on one side of the B plate, a third through hole extending into the B plate is formed in each molding area, the side, not provided with an injection molding groove, of the A plate is closed to the B plate, the injection molding areas correspond to the molding areas in position, and the first through hole of each injection molding area corresponds to the third through hole of one molding area to form a molding cavity. The hot runner nozzle is matched with the cold runner to feed glue in a point mode, so that the injection molding time is shortened, the pressure loss of an injection molding machine is low, the surface quality of a product is good, the production process is stable, and the waste of raw materials is reduced.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an injection pipetting head production mold.
Background
The pipetting head is a consumable material with large usage amount in the fields of medical treatment, biology, chemistry and the like, and is matched with a pipetting gun to play a role in quantitatively measuring liquid. In the existing production technology of the liquid-transferring head, an injection molding machine is mostly adopted for matched mold injection molding, cold runner glue feeding is adopted in production, the production period of the mode is longer, the injection pressure loss of the injection molding machine is larger, the waste of raw materials can be generated, meanwhile, after the injection molding production of the existing mold is completed, the liquid-transferring head is in a forming cavity, and the liquid-transferring head is inconvenient to take out after the mold is opened.
Disclosure of Invention
Technical problem to be solved
In order to solve the problems in the prior art, the invention provides an injection liquid-transferring head production mold, which solves the problems of long production period, large pressure loss of an injection molding machine, waste of raw materials, inconvenience in taking out and the like in the existing production process.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
an injection molding pipetting head production mold comprising: a front mould and a rear mould are arranged in the mould,
the front mould comprises an A plate, a stripper plate, a splitter plate and a panel;
the rear die comprises a B plate, square iron, a fixed plate and a bottom plate;
the plate A is provided with two injection molding areas, each injection molding area is internally provided with 16 first through holes, the injection molding area on one side of the plate A is internally provided with an injection molding groove, and the injection molding grooves connect the 16 first through holes;
two hot flow nozzles are arranged inside the flow distribution plate, two second through holes are formed in the stripper plate, the positions of the two second through holes correspond to the hot flow nozzles, and the heads of the hot flow nozzles penetrate through the second through holes of the stripper plate to be in contact with the injection molding groove of the plate A;
one side of the plate B is provided with two forming areas, and each forming area is internally provided with 16 third through holes;
the injection molding areas correspond to the forming areas in position, and the first through hole of each injection molding area corresponds to the third through hole of one forming area;
the rear die is also provided with an ejection mechanism.
Optionally, the ejector mechanism includes a thimble panel and a thimble base plate, the thimble panel is located on the upper portion of the thimble base plate, and the thimble panel and the thimble base plate are fixedly connected;
a back needle is fixedly arranged at the upper part of the thimble panel and can penetrate through the plate B to be contacted with a back needle collision block of the plate A;
a strong pull rod is fixedly arranged on the lower portion of the ejector pin panel, the lower end of the strong pull rod penetrates through the ejector pin bottom plate, the fixing plate and the bottom plate, and a clamping groove is formed in the bottom of the strong pull rod.
Optionally, the panel is located at the lowest layer of the front mold, the panel is fixedly connected with the splitter plate through 4 first limiting screws, 4 positioning pins are further arranged between the panel and the splitter plate, 4 first guide rods are arranged at the upper part of the splitter plate, and each first guide rod sequentially penetrates through the stripper plate and the plate a;
the bottom plate is located the lower most layer of back mould, and bottom plate, fixed plate, square iron pass through pipe silk fixed connection, still be equipped with 4 second spacing bolts on the bottom plate, second spacing bolt passes fixed plate, square iron and B board fixed connection, B board bottom is equipped with 4 second guide arms, and every second guide arm all passes the B board.
Optionally, 4 first limiting rods are arranged on the stripper plate, each first limiting rod penetrates through the plate a, and a first flange is fixedly arranged at the free end of each first limiting rod;
4 second limiting rods are arranged on the flow distribution plate, each second limiting rod penetrates through the stripper plate, and a second flange is fixedly arranged at the free end of each second limiting rod;
and the B plate is also fixedly provided with 4 round fine positioning pins, and each round fine positioning pin extends out of the B plate.
Optionally, the upper part of the plate B is provided with 4 first guide holes corresponding to the first guide rod, and 4 first limiting holes corresponding to the first limiting rod;
the A plate is provided with 4 second guide holes corresponding to the second guide rods and 4 round fine positioning nuts corresponding to the round fine positioning nuts;
the A plate is also provided with 4 second limiting holes corresponding to the second limiting rods.
Optionally, the number of the square irons is two, and the two square irons are symmetrically arranged between the B plate and the fixing plate;
a barrel-driving needle assembly is arranged between the two square irons, and the number of the barrel-driving needle assemblies corresponds to the number of the third through holes;
each of the cartridge needle assemblies comprises: one ejector sleeve and one ejector sleeve needle.
Optionally, the ejector sleeve is a funnel-shaped hollow pipe body, and the radius of the upper section of the ejector sleeve is smaller than that of the lower section of the ejector sleeve;
the upper section of the ejector sleeve extends into the third through hole, and the outer surface of the ejector sleeve is tightly attached to the inner surface of the third through hole;
the lower section of the ejector sleeve penetrates through the thimble panel and is fixedly arranged with the thimble panel, the bottom end of the ejector sleeve is flush with the bottom surface of the thimble panel, and the bottom end of the ejector sleeve is provided with an opening;
the ejector pin is a two-section type cylinder, the radius of the upper section is smaller than that of the lower section, and the two sections of cylinders are coaxial;
the ejector sleeve needle extends into the ejector sleeve, the radius of the lower section of the ejector sleeve needle is the same as the size of an opening at the bottom end of the ejector sleeve, and the lower section of the ejector sleeve needle penetrates through the ejector pin panel and the ejector pin bottom plate to be fixedly connected with the fixing plate.
Optionally, the surface of the plate a is provided with 4 side lockers, and the outer edge of the plate a is provided with 4 fastening machines;
the B board surface is provided with 4 and the public female side lock that corresponds of side lock, B board outward flange is provided with 4 knot machine grooves that correspond with the knot machine.
Optionally, the side locking male and the side locking female are fixedly connected with the plate A through bolts;
the surface of the side lock nut is covered with a gasket, and the gasket and the button machine groove are connected with the B plate through bolts.
(III) advantageous effects
The invention has the beneficial effects that:
the injection liquid-moving head mould disclosed by the invention has the advantages that the front mould and the rear mould are matched for use, the injection time is shortened by matching the hot flow nozzle with the cold flow channel to feed glue, the pressure loss of an injection moulding machine is smaller, the surface quality of a product is better, the production process is stable, the waste of raw materials is less, and the demoulding difficulty of the mould can be effectively reduced by separating a finished product from a half part through the ejection mechanism.
Drawings
FIG. 1 is a schematic perspective view of a front mold according to the present invention;
FIG. 2 is a schematic perspective view of a rear mold according to the present invention;
FIG. 3 is a cross-sectional view of the mold of the present invention;
FIG. 4 is an enlarged view of a portion of the trocar assembly of the cross-sectional view of FIG. 3;
FIG. 5 is a further cross-sectional view of the inventive die;
FIG. 6 is a view showing the open state of the A plate and the stripper plate according to the present invention;
FIG. 7 is a view showing the stripper plate and the panel in an open state according to the present invention;
FIG. 8 is a view of the A-B panel of the present invention in a semi-pushed state with the product open;
FIG. 9 is a schematic view of a glue injection method according to the present invention.
[ description of reference ]
1: a front mold;
11: a, a plate; 1101: a second guide hole; 1102: round fine positioning nuts; 1103: the side lock is male; 1104: an injection molding zone; 1105: buckling machine; 1106: a clip collision block;
12: a material removing plate; 13: a flow distribution plate; 14: a panel; 15: a first limit rod; 16: a first guide bar; 17: a second limiting rod; 18: a first limit bolt; 19: positioning pins;
2: a rear mold;
21: b, plate; 2101: a first guide hole; 2102: a first limit hole; 2103: locking nuts at the sides; 2104: a molding zone; 2105: a button machine groove; 2106: needle returning holes;
22: square iron; 23: a thimble panel; 24: a thimble base plate; 25: a fixing plate; 26: a base plate; 27: a second guide bar; 28: round fine positioning male; 29: a second limit bolt; 210: tube filament;
3: a sleeve pin assembly;
31: a ejector sleeve; 32: a sleeve ejecting needle;
4: a hot runner nozzle;
5: needle return;
6: a stub bar;
7: and (4) a strong pull rod.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
Examples
As shown in fig. 1, 2 and 9, the present embodiment discloses an injection pipette head production mold, including: the front die comprises a front die 1 and a rear die 2, wherein the front die 1 comprises an A plate 11, a stripper plate 12, a splitter plate 13 and a panel 14, and the rear die 2 comprises a B plate 21, square irons 22, ejector pin panels 23, ejector pin bottom plates 24, fixing plates 25 and bottom plates 26.
Be equipped with two district 1104 of moulding plastics on A board 11, 16 first through-holes have been seted up in every district 1104 of moulding plastics and have been seted up the groove of moulding plastics in the district 1104 of moulding plastics of one side of A board 11 and link to each other 16 first through-holes, the inside of flow distribution plate 13 is provided with two hot runner spouts 4, it has two second through-holes to open on the flitch 12 to take off, and the position of two second through-holes corresponds with two hot runner spouts 4, and the second through-hole that takes off flitch 12 can be passed to the head of two hot runner spouts 4 contacts with the groove of moulding plastics of A board 11.
One side of the B plate 21 is provided with two molding areas 2104, 16 third through holes are formed in each molding area 2104, when the B plate 21 is closed, the side, not provided with the injection molding groove, of the A plate 11 is closed to the B plate 21, the injection molding areas 1104 correspond to the molding areas 2104 in position, and the first through hole of each injection molding area 1104 corresponds to the third through hole of one molding area 2104 to form a molding cavity.
During specific operation, the front mold 1 and the rear mold 2 are combined into a whole, and the hot runner nozzle 4 arranged in the flow distribution plate 13 and the injection molding groove on the A plate 11 form a glue inlet channel for point glue inlet of the hot runner cold runner.
As shown in fig. 1, 2, and 3, in the injection molding pipetting head mold of this embodiment, the panel 14 is located at the lowermost layer of the front mold 1, the panel 14 and the diverter plate 13 are fixedly connected by 4 first limit screws 18, 4 positioning pins 19 are further disposed between the panel 14 and the diverter plate 13, and the 4 positioning pins 19 are used to ensure that the panel 14 corresponds to the diverter plate 13 when the front mold 1 is assembled, so that the heat flow nozzle 4 is installed at a correct position.
The upper part of the flow distribution plate 13 is provided with 4 first guide rods 16, each first guide rod 16 sequentially penetrates through the stripper plate 12 and the A plate 11, the stripper plate 12, the A plate 11 and the flow distribution plate 13 are assembled into a whole, and one surface of the A plate 11, which is provided with an injection molding groove, is in contact with the stripper plate 12.
The bottom plate 26 is located at the lowest layer of the rear mold 2, the bottom plate 26, the fixing plate 25 and the square iron 22 are fixedly connected through a tube wire 210, 4 second limiting bolts 29 are further arranged on the bottom plate 26, the second limiting bolts 29 penetrate through the fixing plate 25, the square iron 22 is fixedly connected with the B plate 21, 4 second guide rods 27 are arranged at the bottom of the B plate 21, and each second guide rod 27 penetrates through the B plate 21.
The bottom plate 26, the fixing plate 25 and the square iron 22 are fixedly connected through the tube wire 210, the bottom plate 26 is further fixedly connected with the B plate 21 through the second limiting bolt 29, a part of the bottom of each second guide rod 27, which is in contact with the square iron 22, extends into the square iron 22 to play a role in positioning, and the position of the B plate 21 is ensured to correspond to the position of the square iron 22 during installation.
The stripper plate 12 is provided with 4 first limiting rods 15, each first limiting rod 15 penetrates through the A plate 11, and a first flange is fixedly arranged at the free end of each first limiting rod 15;
the upper part of the B plate 21 is provided with 4 first guide holes 2101 corresponding to the first guide rod 16 and 4 first limiting holes 2102 corresponding to the first limiting rod 15.
The B plate 21 is also fixedly provided with 4 round fine positioning male parts 28, and each round fine positioning male part 28 extends out of the B plate 21;
the a plate 11 is provided with 4 second guide holes 1101 corresponding to the second guide rods 27 and 4 fine positioning nuts 1102 corresponding to the fine positioning male 28.
4 second limiting rods 17 are arranged on the flow distribution plate 13, each second limiting rod 17 penetrates through the stripper plate 12, and a second flange is fixedly arranged at the free end of each second limiting rod 17;
the A plate 11 is also provided with 4 second limiting holes corresponding to the second limiting rods 17.
During the assembly operation of the front mold 1, the 4 second limiting rods 17 of the splitter plate 13 penetrate through the stripper plate 12 and extend into the 4 second limiting holes of the a plate 11.
In a specific mold closing operation, the front mold 1 and the rear mold 2 are combined into a whole by fitting the 4 first guide rods 16 of the front mold 1 with the 4 first guide holes 2101 of the rear mold 2 and fitting the 4 second guide rods 27 of the rear mold 2 with the 4 second guide holes 1101 of the front mold 1.
A first flange at the free end of each first limiting rod 15 is provided with a hexagonal hole, and the bottom of a first limiting hole 2102 of each B plate 21 is provided with a hexagonal fixing block corresponding to the hexagonal hole;
when the die is closed, the 4 first limiting rods 15 respectively extend into the 4 first limiting holes 2102, and the hexagonal open holes of the first flange at the free end of each first limiting rod 15 are embedded with the hexagonal fixing blocks at the bottoms of the first limiting holes 2102, so that the connection is firmer, and the die can be prevented from shaking in work;
the 4 round fine positioning male dies 28 and the 4 round fine positioning female dies 1102 are used for accurately positioning the front die 1 and the rear die 2 when the dies are closed.
The first guide rod 16 and the second guide rod 27 play a role in connecting the front die 1 and the rear die 2, the first limiting rod 15 has a role in limiting the die opening distance by a first flange at the free end of the first limiting rod 15 when the die is removed, and the first flange is used for preventing the A plate 11 and the stripper plate 12 from being completely separated;
the second stopper rod 17 functions to limit the opening distance of the stripper plate 12 when the stub bar 6 is removed.
As shown in fig. 2, 3 and 4, in the pipetting head injection mold of the present embodiment, there are two square irons 22 symmetrically disposed between the B plate 21 and the fixing plate 25, and the ejector pin assemblies 3 are disposed between the two square irons 22, the number of the ejector pin assemblies 3 corresponds to the number of the third through holes, each ejector pin assembly 3 includes: a cartridge 31, a cartridge needle 32;
the ejector sleeve 31 is a funnel-shaped hollow pipe body, the radius of the upper section of the ejector sleeve 31 is smaller than that of the lower section, the upper section of the ejector sleeve 31 extends into the third through hole, the outer surface of the ejector sleeve 31 is tightly attached to the inner surface of the third through hole, the lower section of the ejector sleeve 31 penetrates through the ejector pin panel 23 and is fixedly arranged with the ejector pin panel 23, the bottom end of the ejector sleeve 31 is flush with the bottom surface of the ejector pin panel 23, an opening is formed in the bottom end of the ejector sleeve 31, the ejector sleeve needle 32 is a two-section type cylinder, the radius of the upper section is smaller than that of the lower section, the two sections of cylinders are coaxial, the ejector sleeve needle 32 extends into the ejector sleeve 31, the radius of the lower section of the ejector sleeve needle 32 is the same as the opening size of the bottom end of the ejector sleeve 31, and the lower section of the ejector sleeve needle 32 penetrates through the ejector pin panel 23, the ejector pin bottom plate 24 and the fixing plate 25.
During injection molding operation, the melt flows out of the hot flow nozzle 4, enters the injection molding groove, flows into the ejector sleeve 31 passing through the first through hole after being dispersed, and then flows into the ejector sleeve 31 in the third through hole, so that a finished product is formed in the ejector sleeve 31.
As shown in fig. 5, the injection molding liquid-moving head mold of this embodiment further includes an ejection mechanism between the two square irons 22, the ejection mechanism includes an ejector pin panel 23 and an ejector pin bottom plate 24, the ejector pin panel 23 is located on the upper portion of the ejector pin bottom plate 24, the ejector pin panel and the ejector pin bottom plate are fixedly connected, 4 return pins 5 are arranged on the upper portion of the ejector pin panel 23, the lower end of each return pin 5 is fixedly connected with the ejector pin panel 23, the upper end of each return pin 5 passes through a return pin hole 2106 on the surface of the B plate 21 and contacts with a return pin bump 1106 of the a plate 11, a strong pull rod 7 is arranged on the lower portion of the ejector pin panel 23, the upper end of the strong pull rod 7 passes through the ejector pin bottom plate 24 and is fixedly connected with the ejector pin panel 23, the lower end of the strong pull rod 7 passes through the fixing plate 25 and the bottom plate 26, and the bottom of the strong pull rod 7 is provided with a clamping groove.
After the injection molding operation is finished, the ejection mechanism can eject a finished product in a semi-ejection mode, so that the finished product can be taken out conveniently after subsequent demolding, the ejector sleeve 31 is fixedly connected with the ejector pin panel 23, and the ejector sleeve needle 32 penetrates through the ejector pin panel 23 and the ejector pin base plate 24 to be fixedly connected with the fixing plate 25;
after the front mold 1 and the rear mold 2 are separated, the ejector pin panel 23 and the ejector pin bottom plate 24 are moved upwards by pushing the strong pull rod 7, the ejector pin panel 23 drives the ejector sleeve 31 to move upwards until the part with the larger radius in the middle of the ejector sleeve 31 contacts with the third through hole, a finished product is half ejected out, subsequent taking out is facilitated, and a clamping groove for butting with a push-pull tool is formed in the bottom of the strong pull rod 7.
Meanwhile, the return pin 5 is driven by the ejector pin panel 23 to be ejected upwards along the return pin hole 2106, the return pin 5 extends out of the B plate 21, the front mold 1 and the rear mold 2 cannot complete mold closing, and the return pin 5 prevents the mold closing operation under the condition that the ejection mechanism is not reset.
The ejector sleeve 31 is a funnel-shaped hollow pipe body, when the ejection mechanism is not reset, the funnel neck of the ejector sleeve 31 is in contact with the third through hole of the B plate 21, after the ejection mechanism is reset, the ejector sleeve 31 moves downwards along with the ejector pin panel 23, the funnel neck of the ejector sleeve 31 is far away from the third through hole of the B plate 21, and at the moment, the funnel neck of the ejector sleeve 31 is not in contact with the third through hole of the B plate 21.
As shown in fig. 1 and fig. 2, in the injection molding pipetting head mold of the present embodiment, 4 edge locking pins 1103 are disposed on the surface of the a plate 11, and 4 fastening machines 1105 are disposed on the outer edge of the a plate 11;
the surface of the B plate 21 is provided with 4 side lock nuts 2103 corresponding to the side lock nuts 1103, and the outer edge of the B plate 21 is provided with 4 button machine grooves 2105 corresponding to the button machines 1105;
public 1103, the button machine 1105 of limit lock all through bolt and A board 11 fixed connection, the surface covering of limit lock mother 2103 has the gasket, and gasket, button machine groove 2105 all are connected with B board 21 through the bolt.
During specific operation, the edge locking male 1103 arranged on the A plate 11 is matched with the edge locking female 2103 of the B plate 21 to play a positioning role, so that the position of the A plate 11 and the position of the B plate 21 are correct when the A plate 11 and the B plate 21 are matched, and the injection molding area 1104 and the molding area 2104 are prevented from deviating;
the sear 1105 on the a plate 11 cooperates with the corresponding sear slot 2105 on the B plate 21 to lock or unlock the a plate 11 and the B plate 21.
The female 2103 surface covering of limit lock has the gasket, and the gasket can protect B board 21 surface not damaged by the public 1103 of limit lock, and the public 1103 of limit lock, button machine 1105 pass through bolted connection with A board 11, and gasket and external button machine groove 2105 pass through bolted connection with B board 21, can in time change when fastener, gasket, external fastener groove damage, guarantee that the mould is not influenced.
As shown in fig. 6, after the injection molding operation is completed and the injection molding operation is cooled, the a plate 11 and the stripper plate 12 are opened, the stripper plate 12, the splitter plate 13 and the face plate 14 move together, the first limiting rod 15 limits the movement stroke of the stripper plate 12 to the limiting position, and the stub bar 6 is retained on the stripper plate 12 by the material pulling needle and follows the stripper plate 12 to the stroke limiting position;
as shown in fig. 7, the stripper plate 12 and the splitter plate 13 are opened, the second limiting rod 17 limits the movement stroke of the stripper plate 12 to a limiting position, and the stub bar 6 is stripped from the drawing pin;
as shown in fig. 8, the button machine 1105 is then opened, the a plate 11 and the B plate 21 are opened, the finished pipetting head is ejected by the ejection mechanism to be half-detached from the rear mold needle, and finally the product is taken out by the manipulator.
Compared with the conventional mainstream liquid-transfering head mold adopting a cold runner glue-feeding mode, the injection liquid-transfering head mold disclosed by the invention has the advantages that the production process is more stable, the product quality is better, the pressure loss of an injection molding machine in the injection molding process is smaller, the production period is shortened, the generation of waste materials in the production process is reduced, and the energy consumption is reduced.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive efforts, which shall fall within the scope of the present invention.
Claims (9)
1. An injection molding transfer pipette head production mold, comprising: a front mould (1) and a rear mould (2),
the front mould (1) comprises an A plate (11), a stripper plate (12), a splitter plate (13) and a panel (14);
the rear mould (2) comprises a B plate (21), square irons (22), a fixing plate (25) and a bottom plate (26);
the plate A (11) is provided with two injection molding areas (1104), each injection molding area (1104) is internally provided with 16 first through holes, and the injection molding area (1104) on one side of the plate A (11) is internally provided with an injection molding groove which connects the 16 first through holes;
two hot flow nozzles (4) are arranged in the splitter plate (13), two second through holes are formed in the stripper plate (12), the positions of the two second through holes correspond to the positions of the hot flow nozzles (4), and the heads of the hot flow nozzles (4) penetrate through the second through holes of the stripper plate (12) to be in contact with the injection molding groove of the A plate (11);
one side of the B plate (21) is provided with two forming areas (2104), and each forming area (2104) is internally provided with 16 third through holes;
the injection molding zones (1104) correspond to the molding zones (2104), and the first through hole of each injection molding zone (1104) corresponds to the third through hole of one molding zone (2104);
the rear die (2) is also provided with an ejection mechanism.
2. The injection molding pipetting head production mold of claim 1,
the ejection mechanism comprises an ejector pin panel (23) and an ejector pin bottom plate (24), wherein the ejector pin panel (23) is positioned at the upper part of the ejector pin bottom plate (24) and fixedly connected with the ejector pin bottom plate;
the upper part of the thimble panel (23) is fixedly provided with a return pin (5), and the return pin (5) can penetrate through the B plate (21) to be contacted with a return pin collision block (1106) of the A plate (11);
the ejector pin panel (23) lower part is fixed and is provided with strong pull rod (7), and thimble bottom plate (24), fixed plate (25), bottom plate (26) are passed to strong pull rod (7) lower extreme, strong pull rod (7) bottom is provided with the draw-in groove.
3. The injection molding pipetting head production mold of claim 1,
the panel (14) is positioned at the lowest layer of the front mold (1), the panel (14) is fixedly connected with the flow distribution plate (13) through 4 first limiting screws (18), 4 positioning pins (19) are further arranged between the panel (14) and the flow distribution plate (13), 4 first guide rods (16) are arranged at the upper part of the flow distribution plate (13), and each first guide rod (16) sequentially penetrates through the stripper plate (12) and the A plate (11);
bottom plate (26) are located the lower most layer of back mould (2), and bottom plate (26), fixed plate (25), square iron (22) pass through tub silk (210) fixed connection, still be equipped with 4 second spacing bolts (29), second spacing bolt (29) on bottom plate (26) and pass fixed plate (25), square iron (22) and B board (21) fixed connection, B board (21) bottom is equipped with 4 second guide arms (27), and every second guide arm (27) all passes B board (21).
4. An injection pipetting head production mold according to claim 3,
the stripper plate (12) is provided with 4 first limiting rods (15), each first limiting rod (15) penetrates through the A plate (11), and a first flange is fixedly arranged at the free end of each first limiting rod (15);
4 second limiting rods (17) are arranged on the flow distribution plate (13), each second limiting rod (17) penetrates through the stripper plate (12), and a second flange is fixedly arranged at the free end of each second limiting rod (17);
the B plate (21) is also fixedly provided with 4 round fine positioning male parts (28), and each round fine positioning male part (28) extends out of the B plate (21).
5. An injection pipetting head production mold according to claim 4,
the upper part of the B plate (21) is provided with 4 first guide holes (2101) corresponding to the first guide rod (16) and 4 first limiting holes (2102) corresponding to the first limiting rod (15);
the A plate (11) is provided with 4 second guide holes (1101) corresponding to the second guide rods (27) and 4 circular fine positioning nuts (1102) corresponding to the circular fine positioning nuts (28);
the A plate (11) is also provided with 4 second limiting holes corresponding to the second limiting rods (17).
6. The injection molding pipetting head production mold of claim 1,
the number of the square irons (22) is two, the square irons are symmetrically arranged between the B plate (21) and the fixing plate (25), the sleeve driving needle assemblies (3) are arranged between the two square irons (22), and the number of the sleeve driving needle assemblies (3) corresponds to the number of the third through holes;
each of the cartridge needle assemblies (3) comprises: a ejector sleeve (31) and an ejector sleeve needle (32).
7. The injection molding pipetting head production mold of claim 6,
the ejector sleeve (31) is a funnel-shaped hollow pipe body, and the radius of the upper section of the ejector sleeve (31) is smaller than that of the lower section;
the upper section of the ejector sleeve (31) extends into the third through hole, and the outer surface of the ejector sleeve (31) is tightly attached to the inner surface of the third through hole;
the lower section of the ejector sleeve (31) penetrates through the thimble panel (23) and is fixedly arranged with the thimble panel (23), the bottom end of the ejector sleeve (31) is flush with the bottom surface of the thimble panel (23), and the bottom end of the ejector sleeve (31) is provided with an opening;
the ejector pin (32) is a two-section type cylinder, the radius of the upper section is smaller than that of the lower section, and the two sections of cylinders are coaxial;
the ejector sleeve needle (32) extends into the ejector sleeve (31), the radius of the lower section of the ejector sleeve needle (32) is the same as the size of an opening at the bottom end of the ejector sleeve (31), and the lower section of the ejector sleeve needle (32) penetrates through the ejector pin panel (23) and the ejector pin bottom plate (24) to be fixedly connected with the fixing plate (25).
8. The injection molding pipetting head production mold of claim 1,
the surface of the plate A (11) is provided with 4 side locking bolts (1103), and the outer edge of the plate A (11) is provided with 4 fastening machines (1105);
the surface of the B plate (21) is provided with 4 side lock nuts (2103) corresponding to the side lock nuts (1103), and the outer edge of the B plate (21) is provided with 4 button machine grooves (2105) corresponding to the button machine (1105).
9. The injection molding pipetting head production mold of claim 8,
the side lock male part (1103) and the button machine (1105) are fixedly connected with the A plate (11) through bolts;
the surface of the side locking nut (2103) is covered with a gasket, and the gasket and the button machine groove (2105) are fixedly connected with the B plate (21) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789906.0A CN114851483A (en) | 2022-07-06 | 2022-07-06 | Injection molding liquid-transferring head production mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789906.0A CN114851483A (en) | 2022-07-06 | 2022-07-06 | Injection molding liquid-transferring head production mold |
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| Publication Number | Publication Date |
|---|---|
| CN114851483A true CN114851483A (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210789906.0A Pending CN114851483A (en) | 2022-07-06 | 2022-07-06 | Injection molding liquid-transferring head production mold |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179903A (en) * | 2011-03-21 | 2011-09-14 | 凯达电子(昆山)有限公司 | Hot-runner-technology-based three-plate injection mold |
| CN202318809U (en) * | 2011-11-12 | 2012-07-11 | 董彦 | Automatic material cutting-off mechanism for three-board mould runner cold slug |
| CN113103518A (en) * | 2021-04-13 | 2021-07-13 | 苏州赛普生物科技有限公司 | Multi-cavity die for preparing high-precision deep hole plate |
| CN214872319U (en) * | 2021-04-13 | 2021-11-26 | 苏州赛普生物科技有限公司 | Multi-cavity die for preparing high-precision deep hole plate |
| CN215943608U (en) * | 2021-08-12 | 2022-03-04 | 苏州爱默瑞生物科技有限公司 | Mould core of liquid-transfering suction head product can fully cool |
| CN216465946U (en) * | 2021-12-29 | 2022-05-10 | 山东优仕铭卓精密模具有限公司 | Injection mold with hot runner rotating multiple glue inlet points |
-
2022
- 2022-07-06 CN CN202210789906.0A patent/CN114851483A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179903A (en) * | 2011-03-21 | 2011-09-14 | 凯达电子(昆山)有限公司 | Hot-runner-technology-based three-plate injection mold |
| CN202318809U (en) * | 2011-11-12 | 2012-07-11 | 董彦 | Automatic material cutting-off mechanism for three-board mould runner cold slug |
| CN113103518A (en) * | 2021-04-13 | 2021-07-13 | 苏州赛普生物科技有限公司 | Multi-cavity die for preparing high-precision deep hole plate |
| CN214872319U (en) * | 2021-04-13 | 2021-11-26 | 苏州赛普生物科技有限公司 | Multi-cavity die for preparing high-precision deep hole plate |
| CN215943608U (en) * | 2021-08-12 | 2022-03-04 | 苏州爱默瑞生物科技有限公司 | Mould core of liquid-transfering suction head product can fully cool |
| CN216465946U (en) * | 2021-12-29 | 2022-05-10 | 山东优仕铭卓精密模具有限公司 | Injection mold with hot runner rotating multiple glue inlet points |
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Address after: Building 1, cecep (Suzhou) Environmental Protection Technology Industrial Park, No.18, Dongchang Road, Suzhou Industrial Park, Jiangsu Province, 215024 Applicant after: Suzhou Saipu Biotechnology Co.,Ltd. Address before: Building 1, cecep (Suzhou) Environmental Protection Technology Industrial Park, No.18, Dongchang Road, Suzhou Industrial Park, Jiangsu Province, 215024 Applicant before: SUZHOU SP BIOTECHNOLOGY Co.,Ltd. |
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Application publication date: 20220805 |