CN213593521U - High-precision injection mold for thermoplastic ABS - Google Patents
High-precision injection mold for thermoplastic ABS Download PDFInfo
- Publication number
- CN213593521U CN213593521U CN202022387104.6U CN202022387104U CN213593521U CN 213593521 U CN213593521 U CN 213593521U CN 202022387104 U CN202022387104 U CN 202022387104U CN 213593521 U CN213593521 U CN 213593521U
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- Prior art keywords
- upper die
- frame
- lower die
- rod
- injection molding
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- Expired - Fee Related
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- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 9
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 9
- 238000001746 injection moulding Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 6
- 241000826860 Trapezium Species 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 abstract 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection mold for high-precision thermoplastic ABS, which comprises an upper mold and a plurality of lower molds which are connected end to end and driven by a traction mechanism, wherein the upper mold is fixed at the bottom of an upper mold frame which passes through a hydraulic cylinder, first guide bar is connected with the top of frame, the top of going up the mould frame still is fixed with the injection molding machine, the mouth of moulding plastics of injection molding machine is linked together with the inner chamber of last mould, it still is equipped with telescopic second guide bar and third guide bar to go up the mould frame bottom, the mouth of moulding plastics and the junction of last mould inner chamber still telescopic connection have all disconnected sword, the lower mould is fixed on the mould frame down, the mould frame passes through the slider to be connected on the track down, the inner chamber bottom of lower mould still telescopic connection has an ejector pin, the bottom of ejector pin exposes in the bottom of mould frame down, still be equipped with one on the track with the corresponding footstock of ejector pin, the utility model discloses can carry out continuous ABS material injection moulding, machining precision and machining efficiency are.
Description
Technical Field
The utility model relates to a high accuracy thermoplasticity injection mold for ABS.
Background
In the prior art, the injection molding and compression molding equipment for the thermoplastic ABS material generally comprises a frame, wherein an upper die, a lower die and an injection molding machine are arranged on the frame, the injection molding machine injects the material between the upper die and the lower die, and the upper die and the lower die are subjected to one-step die assembly to perform injection molding and compression molding on a workpiece; after demolding is carried out manually or by a mechanical arm, the actions are repeated to process the next workpiece; the equipment with the structure has lower processing efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of above-mentioned prior art, provide a high accuracy thermoplasticity injection mold for ABS.
The technical scheme of the utility model is that: an injection mold for high-precision thermoplastic ABS comprises an upper mold and a plurality of lower molds which are connected end to end and driven by a traction mechanism, wherein the upper mold is fixed at the bottom of an upper mold frame, the upper mold frame is connected to the top of a frame through a hydraulic cylinder, four corners of the top of the upper mold frame are respectively connected with the top of the frame through first guide rods, an injection molding machine is further fixed at the top of the upper mold frame, an injection molding opening of the injection molding machine penetrates through the upper mold frame to be inserted and fixed at the top of the upper mold and communicated with an inner cavity of the upper mold, two sides of the bottom of the upper mold frame are respectively provided with a telescopic second guide rod, the two second guide rods are respectively positioned at two sides of the upper mold, the bottom of the upper mold is also provided with four third guide rods, and each third guide rod;
a slide way is arranged at the joint of the injection molding opening and the inner cavity of the upper die, a cutting knife is connected in the slide way in a sliding way, an air cylinder is fixed on the outer side of the upper die, and a piston rod of the air cylinder is connected with the tail part of the cutting knife through a connecting rod;
the lower die is fixed on a lower die frame, the lower die frame is connected on a track through a sliding block, the track is a double-track dovetail groove guide rail, and the shape of the sliding block corresponds to that of the track;
the lower die carrier is provided with positioning blocks corresponding to the second guide rods, and the tops of the positioning blocks are provided with bowl-shaped socket openings;
the bottom of the inner cavity of the lower die is also telescopically connected with a mandril, the top end of the mandril is provided with a limit ring, the limit ring is matched in a concave hole of the inner cavity of the lower die, a spring chamber is arranged at the middle position of the bottom of the lower die frame, the bottom end of the mandril penetrates through the lower die and the spring chamber and is exposed out of the bottom of the lower die frame, and the bottom end of the mandril is spherical and is positioned between the double rails of the track;
the ejector rod positioned in the spring chamber is also provided with a spring seat, a strong spring is sleeved on the ejector rod between the spring seat and the top wall of the spring chamber, an ejector seat is arranged between the two tracks of the tracks, and the ejector seat is positioned below the moving direction of the lower die carrier and keeps a distance with the vertical projection of the upper die.
Furthermore, the second guide rod is formed by connecting a first rod body and a second rod body, the lower end of the first rod body is inserted into the second rod body, and a guide rod spring is further arranged at the joint of the first rod body and the second rod body.
Furthermore, the cross section of the cutting-off cutter is trapezoidal, the front end of the cutting-off cutter is provided with a cutting edge, the two end angles at the top of the cutting-off cutter are arc transition angles, and the shape of the slideway corresponds to that of the cutting-off cutter.
Further, the footstock is a frustum-shaped footstock, and the periphery of the top of the footstock is in arc transition.
The utility model has the advantages that: the utility model discloses can carry out continuous ABS material injection molding, machining precision and machining efficiency are all higher.
Drawings
FIG. 1 is a schematic side view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the cutting blade of the present invention;
fig. 4 is a schematic structural view of the top seat of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Referring to fig. 1 and 2, an injection mold for high-precision thermoplastic ABS comprises an upper mold 1 and a plurality of lower molds 2 connected end to end and driven by a traction mechanism;
the upper die 1 is fixed at the bottom of an upper die frame 3, the upper die frame 3 is connected to the top of a rack through a hydraulic cylinder 4, four corners of the top of the upper die frame 3 are respectively connected with the top of the rack through first guide rods 5, an injection molding machine is further fixed at the top of the upper die frame 3, an injection molding port 6 of the injection molding machine penetrates through the upper die frame 3 to be inserted and fixed at the top of the upper die 1 and communicated with an inner cavity of the upper die 1, two sides of the bottom of the upper die frame 3 are respectively provided with a second guide rod 7, the two second guide rods 7 are respectively positioned at two sides of the upper die 1, the bottom of the upper die 1 is further provided with four third guide rods 8, and each third guide rod is positioned at the outer;
a slide way is arranged at the joint of the injection molding opening 6 and the inner cavity of the upper die 1, a cutting knife 9 is connected in the slide way in a sliding way, a cylinder 10 is fixed on the outer side of the upper die 1, and a piston rod of the cylinder 10 is connected with the tail part of the cutting knife 9 through a connecting rod; the cylinder 10 is used for controlling the expansion and contraction of the cutting-off knife 9 in the slideway, and the cutting-off knife 9 is used for cutting off a pouring gate of the injection molding opening 6 and keeping the sealing of the inner cavity of the upper die 1 when extending out;
specifically, the second guide rod 7 is formed by connecting a first rod body 11 and a second rod body 12, the lower end of the first rod body 11 is inserted into the second rod body 12, and a guide rod spring 13 is further arranged at the joint of the first rod body 11 and the second rod body 12, so that the second guide rod 7 is a telescopic guide rod;
as shown in fig. 3, the cross section of the cutting-off blade 9 is a trapezoid, so that the cutting-off blade 9 can better bear the pressure transmitted from the lower part during mold closing; the front end of the cutting knife 9 is provided with a cutting edge, two end angles at the top of the cutting knife 9 are arc transition angles, and the shape of the slideway corresponds to that of the cutting knife 9 so as to reduce friction between the cutting knife 9 and the slideway during stretching;
the lower die 2 is fixed on a lower die frame 14, the lower die frame 14 is connected to a rail 16 through a sliding block 15, the rail 16 is a double-rail dovetail groove guide rail, and the shape of the sliding block 15 corresponds to that of the rail 16;
the lower die frame 14 is provided with positioning blocks 17 corresponding to the second guide rods 7, and the tops of the positioning blocks 17 are provided with bowl-shaped sockets, so that the second guide rods 7 and the positioning blocks 17 are automatically aligned when slightly deviated; the top of the lower die 2 is provided with jacks corresponding to the third guide rods 8, so that the accuracy of die assembly is further improved;
the bottom of the inner cavity of the lower die 2 is also telescopically connected with a top rod 18, the top end of the top rod 18 is provided with a limit ring, the limit ring is matched in a concave hole of the inner cavity of the lower die 2, a spring chamber 19 is arranged in the middle of the bottom of the lower die frame 14, the bottom end of the top rod 18 penetrates through the lower die 2 and the spring chamber 19 and is exposed out of the bottom of the lower die frame 14, and the bottom end of the top rod 18 is spherical and is positioned between double rails of the track 16; the ejector rod 18 positioned in the spring chamber 19 is also provided with a spring seat 20, and a strong spring 21 is sleeved on the ejector rod 18 between the spring seat 20 and the top wall of the spring chamber 19 so as to keep the lower end of the ejector rod 18 extending out of the bottom of the lower die carrier 14; a top seat 22 is arranged between the two rails of the track 16, the top seat 22 is positioned below the moving direction of the lower die carrier 14 and keeps a distance with the vertical projection of the upper die 1, when the die assembly is completed and the lower die carrier 14 moves over the top seat 22, the top seat 22 can push the ejector rod 18, and the ejector rod 18 moves upwards to demould a workpiece on the lower die carrier 14;
as shown in fig. 4, the top seat 22 is a frustum-shaped top seat 22, and the top periphery of the top seat 22 is in arc transition, so as to facilitate the smooth jacking of the jacking rod 18.
The utility model discloses a theory of operation is: each lower die carrier 14 is driven by a traction mechanism to move, and the traction mechanism can be a trolley, a chain wheel type tractor and the like; when the first lower die 2 is positioned under the upper die 1, the traction mechanism stops traction, the hydraulic cylinder 4 on the rack drives the upper die frame 3 to move downwards, the second guide rod 7 is abutted to the positioning block 17, the upper die 1 and the lower die 2 are not completely matched because the second guide rod 7 is telescopic, and the second guide rod 7 is inserted into a socket and automatically corrects slight deviation of the upper die 1 and the lower die 2; with the extension of a piston rod of the hydraulic cylinder 4, the upper die 1 and the lower die 2 are continuously closed until the third guide rod 8 is inserted into an insertion hole on the lower die 2, and the dies are completely closed; in the die closing process, the injection port 6 is injected with materials, and along with the completion of injection molding and die closing, the cylinder 10 drives the cutting knife 9 to extend out of the cutting sprue; after pressure maintaining and cooling setting, the upper die 1 retracts, the lower die 2 continues to move forwards, when the ejector rod 18 is jacked up by the top seat 22 to the top seat 22, the formed workpiece is demoulded, at the moment, the second lower die 2 is positioned under the upper die 1, and the actions are repeated to perform injection molding of the workpiece.
Through the structure, the utility model discloses can carry out continuous ABS material injection moulding, machining precision and machining efficiency are all higher.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a high accuracy thermoplasticity injection mold for ABS which characterized in that: the injection molding machine comprises an upper die and a plurality of lower dies which are connected end to end and driven by a traction mechanism, wherein the upper die is fixed at the bottom of an upper die frame, the upper die frame is connected to the top of a frame through a hydraulic cylinder, four corners of the top of the upper die frame are respectively connected with the top of the frame through first guide rods, an injection molding machine is further fixed at the top of the upper die frame, an injection molding port of the injection molding machine penetrates through the upper die frame to be inserted and fixed at the top of the upper die and communicated with an inner cavity of the upper die, two telescopic second guide rods are further arranged on two sides of the bottom of the upper die frame respectively and are positioned on two sides of the upper die respectively, four third guide rods are further arranged at the bottom of the upper die and are positioned on the;
a slide way is arranged at the joint of the injection molding opening and the inner cavity of the upper die, a cutting knife is connected in the slide way in a sliding way, an air cylinder is fixed on the outer side of the upper die, and a piston rod of the air cylinder is connected with the tail part of the cutting knife through a connecting rod;
the lower die is fixed on a lower die frame, the lower die frame is connected on a track through a sliding block, the track is a double-track dovetail groove guide rail, and the shape of the sliding block corresponds to that of the track;
the lower die carrier is provided with positioning blocks corresponding to the second guide rods, and the tops of the positioning blocks are provided with bowl-shaped socket openings;
the bottom of the inner cavity of the lower die is also telescopically connected with a mandril, the top end of the mandril is provided with a limit ring, the limit ring is matched in a concave hole of the inner cavity of the lower die, a spring chamber is arranged at the middle position of the bottom of the lower die frame, the bottom end of the mandril penetrates through the lower die and the spring chamber and is exposed out of the bottom of the lower die frame, and the bottom end of the mandril is spherical and is positioned between the double rails of the track;
the ejector rod positioned in the spring chamber is also provided with a spring seat, a strong spring is sleeved on the ejector rod between the spring seat and the top wall of the spring chamber, an ejector seat is arranged between the two tracks of the tracks, and the ejector seat is positioned below the moving direction of the lower die carrier and keeps a distance with the vertical projection of the upper die.
2. The injection mold for high-precision thermoplastic ABS as claimed in claim 1, wherein: the second guide rod is formed by connecting a first rod body and a second rod body, the lower end of the first rod body is inserted into the second rod body, and a guide rod spring is further arranged at the joint of the first rod body and the second rod body.
3. The injection mold for high-precision thermoplastic ABS as claimed in claim 1, wherein: the cross section of cutting off cutter is a trapezium, the front end of cutting off cutter has the cutting edge, the top both ends angle of cutting off cutter is arc transition angle, the shape of slide corresponds with the cutting off cutter.
4. The injection mold for high-precision thermoplastic ABS as claimed in claim 1, wherein: the footstock is frustum-shaped, and the periphery of the top of the footstock is in arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022387104.6U CN213593521U (en) | 2020-10-23 | 2020-10-23 | High-precision injection mold for thermoplastic ABS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022387104.6U CN213593521U (en) | 2020-10-23 | 2020-10-23 | High-precision injection mold for thermoplastic ABS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213593521U true CN213593521U (en) | 2021-07-02 |
Family
ID=76592473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022387104.6U Expired - Fee Related CN213593521U (en) | 2020-10-23 | 2020-10-23 | High-precision injection mold for thermoplastic ABS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213593521U (en) |
-
2020
- 2020-10-23 CN CN202022387104.6U patent/CN213593521U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210702 |