CN109228154B - Automatic shearing gate injection mold for accessories - Google Patents
Automatic shearing gate injection mold for accessories Download PDFInfo
- Publication number
- CN109228154B CN109228154B CN201811101396.3A CN201811101396A CN109228154B CN 109228154 B CN109228154 B CN 109228154B CN 201811101396 A CN201811101396 A CN 201811101396A CN 109228154 B CN109228154 B CN 109228154B
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- Prior art keywords
- valve
- air
- way
- cylinder
- accessory
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- 238000010008 shearing Methods 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 7
- 210000003437 trachea Anatomy 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing drive 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
- B29C45/34—Moulds having venting 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
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2001/00—Articles provided with screw threads
- B29L2001/005—Nuts
Abstract
The invention discloses an automatic shearing gate injection mold for accessories, which comprises a mold body, an air valve bump block, two-position three-way valves, an air cylinder, two-position five-way air control valves, a cutter and a connecting air pipe, wherein the two-position five-way air control valves are arranged above the two-position three-way valves, the external air source is connected by touching the two-position three-way valves and is communicated with an air inlet of the two-position three-way valves and the two-position five-way air control valves respectively, the two-position three-way valves are connected with the two-position five-way air control valves, the two-position five-way air control valves are connected with the front end of the air cylinder and control the air cylinder to return, the two-position three-way valves, the two-position five-way air control valves and the air cylinder are connected through the connecting air pipe to form an air circuit, and the air cylinder is connected with the cutter and can move forwards under the driving of the air cylinder. According to the invention, the pneumatic control valve is matched with the mechanical valve, and the gate shearing cut is consistent in shape by shearing the gate by using the cutter, so that industrial automation is realized, and labor cost is greatly reduced.
Description
Technical Field
The invention relates to the field of molds, in particular to an automatic shearing gate injection mold for accessories.
Background
With the gradual shortage of labor resources and the gradual increase of labor cost, the mechanical automatic shearing of the pouring gate of the plastic part product is a necessary trend instead of manual shearing. At present, some domestic technology for automatically shearing gates in molds aims at non-pipeline products, special hydraulic electric appliances and other devices are needed to be arranged inside and outside the molds, the manufacturing cost is high, the appearance and the detection performance of plastic parts are influenced, a mechanical action is added to lift off the gates by using a common oil cylinder before mold opening, and the technology is not suitable for automatically shearing side gates of pipeline products like forced tearing of the gates into the gates.
The side gate of the existing nut type rotary cutter tooth pipe fitting is sheared manually, so that the efficiency is low, the labor intensity is high, the sections of the manually sheared gates are uneven, a large amount of manpower is wasted, and the labor cost of products is increased.
Disclosure of Invention
The invention provides an automatic shearing gate injection mold for accessories, which overcomes at least one defect in the prior art.
The present invention aims to solve the above technical problems at least to some extent.
The primary purpose of the invention is to replace manual shearing by mechanical automatic shearing, save a great deal of manpower and labor intensity of workers in production, reduce the labor cost of products and ensure the consistent appearance of the pouring gates of the products.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a accessory automatically cropped runner injection mold, including being equipped with the accessory and bump piece, two-position three-way valve, cylinder, two-position five-way air control valve, cutter and the connecting air pipe with the mould body of accessory drive to the driving piece of runner, two-position five-way air control valve is provided with first control mouth, second control mouth, air inlet, first gas vent, second gas vent, first work mouth and second work mouth, wherein:
the air valve bump block is arranged above the two-position three-way valve and is connected with an external air source by touching the two-position three-way valve;
an external air source is respectively communicated with an air inlet of the two-position three-way valve and an air inlet of the two-position five-way air control valve, and one air outlet of the two-position three-way valve is connected with a first control port of the two-position five-way air control valve;
the first exhaust port of the two-position five-way air control valve is connected to the rear end of the cylinder, and the second exhaust port of the two-position five-way air control valve is connected to the front end of the cylinder to control the cylinder to return;
the two-position three-way valve, the two-position five-way air control valve and the air cylinder are connected through a connecting air pipe to form an air circuit;
the cylinder is connected with a cutter, the cutter and the pouring gate of the accessory are positioned at the same horizontal height, and can move forward under the drive of the cylinder, and the advancing direction of the cutter is opposite to the pouring gate.
In the scheme, when the die is opened, the air valve collision block is used for touching the two-position three-way valve to connect an external air source, and simultaneously, the two-position five-way air control valve is started, when the pouring gate is higher than the parting surface, the air cylinder pushes the cutter to cut off the water gap, the pouring gate is separated from a product under the action of the cutter, the twisted tooth product is continuously separated from the die cavity to automatically fall, the pouring gate is not required to be manually sheared, and full-automatic production is realized.
Preferably, the automatic air cylinder further comprises a delay valve, wherein the delay valve is provided with a first air inlet, a second air inlet and an air outlet, the first air outlet of the two-position five-way air control valve is connected with the first air inlet and the second air inlet of the delay valve respectively, and the air outlet of the delay valve is connected with the rear end of the air cylinder.
Preferably, the automatic air-conditioning device further comprises a quick-release valve, wherein the quick-release valve is provided with an air inlet, an air outlet and a working port, the delay valve is connected with the quick-release valve through a connecting air pipe, the air outlet of the delay valve is connected with the air inlet of the quick-release valve, and the air outlet of the quick-release valve is connected to the rear end of the air cylinder.
Preferably, the driving piece comprises a gear set, a threaded core and an oil motor, the oil motor is arranged at the bottom of the die, the gear is sleeved on an output shaft of the oil motor, the threaded core is connected with the gear set in an intermeshing manner, and the threaded core can drive the accessory to move upwards under the driving of the oil motor.
Preferably, the delay time of the delay valve is set to be the time required from the time when the valve bump touches the two-position three-way valve to the time when the oil motor drives the accessory to rise so that the accessory is higher than the gate, and the delay time can be adjusted according to actual needs.
Preferably, the working port of the quick exhaust valve is connected with the silencer, and the first working port and the second working port of the two-position five-way pneumatic control valve are respectively connected with the silencer, so that noise generated when the device operates is reduced.
Preferably, the two-position three-way valve is a one-way rolling cam two-position three-way mechanical valve.
Preferably, the unidirectional rolling cam two-position three-way mechanical valve is further provided with a touch rod for opening the air valve, the air valve touch block enables the unidirectional rolling cam two-position three-way mechanical valve to be connected with an external air source by touching the touch rod, and the die is confirmed to start to open by touching the touch rod, so that the die automatically operates.
Preferably, the automatic casting machine further comprises a two-position three-way mechanical valve, an air inlet of the two-position three-way mechanical valve is communicated with an external air source, one air outlet of the two-position three-way mechanical valve is connected with a second control port of the two-position five-way air control valve, and the two-position three-way mechanical valve is further connected with a reset cutter bar which controls the cutter to return to the original position after the sprue is cut off by the cutter bar.
Preferably, the mould is applied to the production of drain nuts, in particular drain nuts and the like rotary wringers.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
the cutting knife is pushed by the air cylinder to cut off the pouring gate, the working states of the air cylinder are controlled by various mechanical valves, pneumatic control valves and the like, noise generated when the silencer reducing device works is additionally arranged, the automatic shearing industrialization of the product pouring gate is realized, human resources are saved, the labor intensity of worker production and the labor cost of the product are reduced, and meanwhile, the appearance consistency of the product pouring gate can be guaranteed.
Drawings
FIG. 1 is a schematic pneumatic diagram of an automatic shearing gate device of a PVC drain nut type rotary screw injection mold;
FIG. 2 is a top view of an automatic shearing gate device of a PVC drain nut type rotary screw injection mold;
FIG. 3 is a top view of a PVC drain nut type rotary screw injection mold with an automatic gate shearing device for cylinders, cutters and air valve combinations;
FIG. 4 is a schematic diagram showing the combination state of an oil motor and a gear of an automatic gate shearing device of a PVC drain nut type rotary screw injection mold;
FIG. 5 is a right side view of an automatic shearing gate device of a PVC drain nut type rotary screw injection mold;
fig. 6 is a left side view of an automatic shearing gate device of a rotary screw injection mold for PVC drain nuts.
In the figure, 1 is a unidirectional rolling cam two-position three-way mechanical valve, 2 is a two-position three-way mechanical valve, 3 is a two-position five-way pneumatic control valve, 31 is a first exhaust port, 32 is a second exhaust port, 33 is a second control port, 34 is a first working position, 35 is a second working position, 36 is a first control port, 37 is an air inlet, 4 is a delay valve, 5 is a quick-release valve, 6 is a bump rod, 7 is a reset cutter bar, 8 is an air valve bump block, 9 is a cutter, 10 is an air cylinder, and 11 is an oil motor.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions;
it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides a accessory automatically cropped runner injection mold, including the mould body that is equipped with the accessory and drive the accessory to the driving piece of runner, pneumatic valve bump 8, two-position three-way valve, cylinder 10, two-position five-way pneumatic control valve 3, cutter 9 and connecting the trachea, two-position five-way pneumatic control valve 3 are provided with first control mouth 36, second control mouth 33, air inlet 37, first gas vent 31, second gas vent 32, first work mouth 34 and second work mouth 35, wherein:
the air valve bump block 8 is arranged above the two-position three-way valve, and is connected with an external air source by touching the two-position three-way valve;
the external air source is respectively communicated with an air inlet of the two-position three-way valve and an air inlet 37 of the two-position five-way air control valve 3, and one air outlet of the two-position three-way valve is connected with a first control port 36 of the two-position five-way air control valve 3;
the first exhaust port 31 of the two-position five-way air control valve 3 is connected to the rear end of the cylinder 10, and the second exhaust port 32 of the two-position five-way air control valve 3 is connected to the front end of the cylinder 10 to control the cylinder 10 to return;
the two-position three-way valve, the two-position five-way air control valve 3 and the air cylinder are connected through a connecting air pipe to form an air circuit;
the cylinder 10 is connected with a cutter 9, the cutter 9 and a gate of the accessory are positioned at the same horizontal height, and can move forward under the drive of the cylinder 10, and the advancing direction of the cutter is opposite to the gate;
the device further comprises a delay valve, wherein the delay valve is provided with a first air inlet, a second air inlet and an air outlet, the first air outlet 31 of the two-position five-way air control valve 3 is respectively connected with the first air inlet and the second air inlet of the delay valve, and the air outlet of the delay valve is connected with the rear end of the cylinder 10;
the quick exhaust valve 5 is provided with an air inlet, an air outlet and a working port, the delay valve 4 is connected with the quick exhaust valve 5 through a connecting air pipe, the air outlet of the delay valve 4 is connected with the air inlet of the quick exhaust valve 5, and the air outlet of the quick exhaust valve 5 is connected to the rear end of the cylinder 10;
the driving piece comprises a gear set, a threaded core and an oil motor 11, the oil motor 11 is arranged at the bottom of the die, a gear is sleeved on an output shaft of the oil motor 11, the threaded core is meshed with the gear set and connected with the gear set, and the threaded core can drive the accessory to move upwards under the driving of the oil motor 11;
the delay time of the delay valve is set to be the time required from the contact of the air valve bump 8 with the two-position three-way valve to the driving of the oil motor 11 to drive the accessory to rise so that the accessory is higher than the gate;
the working port of the quick exhaust valve 5 is connected with a silencer, and the first working port and the second working port of the two-position five-way pneumatic control valve 3 are respectively connected with the silencer;
the two-position three-way valve is a one-way rolling cam two-position three-way mechanical valve 1;
the one-way rolling cam two-position three-way mechanical valve 1 is also provided with a bump rod 6 for opening an air valve, and the air valve bump block 8 enables the one-way rolling cam two-position three-way mechanical valve 1 to be communicated with an external air source by touching the bump rod 6;
the automatic casting machine also comprises a two-position three-way mechanical valve 2, wherein an air inlet of the two-position three-way mechanical valve 2 is communicated with an external air source, one air outlet of the two-position three-way mechanical valve 2 is connected with a second control port 33 of the two-position five-way air control valve 3, the two-position three-way mechanical valve 2 is also connected with a reset cutter bar 7, and the reset cutter bar 7 controls a cutter 9 to return to the original position after cutting off a sprue;
the mold is applied to the production of drain nuts, in particular to the production of drain nuts and the like rotary twisted teeth.
In the concrete implementation process, after the die is opened, the air valve bump block 8 touches the unidirectional rolling cam two-position three-way mechanical valve 1 to connect an external air source, meanwhile, the two-position five-way air control valve 3 and the two-position three-way mechanical valve 2 are started, and the delay valve 5 is connected to enable the air cylinder 10 to act in a delayed mode, the delay time is set to be the time required by enabling a product gate to be higher than a parting surface from the air valve bump block 8 touching the unidirectional rolling cam two-position three-way mechanical valve 1 to an oil motor 11 driving gear, the oil motor 11 driving gear drives the threaded core to rotate to enable the product to move upwards, when a fitting is higher than the gate, the air cylinder 10 pushes the cutter 9 to cut off the gate under the action of the delay valve 4, at the moment, the gate and the product are automatically sheared and separated under the action of the cutter 9, the oil motor 11 continues to enable the cutter tooth product to fall off from a cavity automatically, one production period is completed, and after the cutter 9 touches a reset cutter bar of the two-position three-way mechanical valve 2, the cutter 9 returns to the original position, and the next production period is started.
The same or similar reference numerals correspond to the same or similar components;
the terms describing the positional relationship in the drawings are merely illustrative, and are not to be construed as limiting the present patent;
it is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The utility model provides a accessory automatically cropped runner injection mold, its characterized in that, including being equipped with the accessory and with the mould body of accessory drive to the driving piece of runner, pneumatic valve bump piece (8), two-position three-way valve, cylinder (10), two-position five-way pneumatic control valve (3), cutter (9) and connecting the trachea, two-position five-way pneumatic control valve (3) are provided with first control mouth (36), second control mouth (33), air inlet (37), first gas vent (31), second gas vent (32), first work mouth (34) and second work mouth (35), wherein:
the air valve bump block (8) is arranged above the two-position three-way valve, and an external air source is connected by touching the two-position three-way valve;
an external air source is respectively communicated with an air inlet of the two-position three-way valve and an air inlet (37) of the two-position five-way air control valve (3), and one air outlet of the two-position three-way valve is connected with a first control port (36) of the two-position five-way air control valve (3);
the first exhaust port (31) of the two-position five-way air control valve (3) is connected to the rear end of the cylinder (10), and the second exhaust port (32) of the two-position five-way air control valve (3) is connected to the front end of the cylinder (10) to control the cylinder (10) to return;
the two-position three-way valve, the two-position five-way air control valve (3) and the air cylinder are connected through the connecting air pipe to form an air circuit;
the cylinder (10) is connected with the cutter (9), the cutter (9) and the pouring gate of the accessory are positioned at the same horizontal height, and can move forwards under the driving of the cylinder (10), and the advancing direction of the cutter is opposite to the pouring gate;
the device further comprises a delay valve, wherein the delay valve is provided with a first air inlet, a second air inlet and an air outlet, a first air outlet (31) of the two-position five-way air control valve (3) is respectively connected with the first air inlet and the second air inlet of the delay valve, and the air outlet of the delay valve is connected with the rear end of the air cylinder (10);
the quick exhaust valve is provided with an air inlet, an air outlet and a working port, the delay valve (4) is connected with the quick exhaust valve (5) through the connecting air pipe, the air outlet of the delay valve (4) is connected with the air inlet of the quick exhaust valve (5), and the air outlet of the quick exhaust valve (5) is connected to the rear end of the air cylinder (10);
the driving piece comprises a gear set, a threaded core and an oil motor (11), the oil motor (11) is arranged at the bottom of the die, the gear is sleeved on an output shaft of the oil motor (11), the threaded core is mutually meshed with the gear set and connected, and the threaded core can drive the accessory to move upwards under the driving of the oil motor (11).
2. The automatic accessory shearing gate injection mold according to claim 1, wherein the delay time of the delay valve is set to be a time required from the contact of the valve bump (8) with the two-position three-way valve to the lifting of the accessory by the oil motor (11) to raise the accessory above the gate.
3. The automatic accessory shearing gate injection mold according to claim 1, wherein the working port of the quick-release valve (5) is connected with a silencer, and the first working port and the second working port of the two-position five-way air control valve (3) are respectively connected with the silencer.
4. The automatic accessory shearing gate injection mold according to claim 1, wherein the two-position three-way valve is a one-way rolling cam two-position three-way mechanical valve (1).
5. The automatic accessory shearing gate injection mold according to claim 4, wherein the unidirectional rolling cam two-position three-way mechanical valve (1) is further provided with a bump rod (6) for opening an air valve, and the air valve bump block (8) enables the unidirectional rolling cam two-position three-way mechanical valve (1) to be connected with an external air source by touching the bump rod (6).
6. The automatic accessory shearing gate injection mold according to claim 1, further comprising a two-position three-way mechanical valve (2), wherein an air inlet of the two-position three-way mechanical valve (2) is communicated with an external air source, one air outlet of the two-position three-way mechanical valve (2) is connected with a second control port (33) of the two-position five-way air control valve (3), the two-position three-way mechanical valve (2) is further connected with a reset cutter bar (7), and the reset cutter bar (7) controls the cutter (9) to return to the original position after the gate is cut off.
7. The automatic part shearing gate injection mold of claim 1, wherein the mold application area is nut-like production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101396.3A CN109228154B (en) | 2018-09-20 | 2018-09-20 | Automatic shearing gate injection mold for accessories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101396.3A CN109228154B (en) | 2018-09-20 | 2018-09-20 | Automatic shearing gate injection mold for accessories |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109228154A CN109228154A (en) | 2019-01-18 |
| CN109228154B true CN109228154B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101396.3A Active CN109228154B (en) | 2018-09-20 | 2018-09-20 | Automatic shearing gate injection mold for accessories |
Country Status (1)
| Country | Link |
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| CN (1) | CN109228154B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109760277A (en) * | 2019-03-19 | 2019-05-17 | 广州莱汇塑料包装有限公司 | It twists tooth and moves back core mechanism and mold |
| CN114670400B (en) * | 2022-02-28 | 2023-05-12 | 歌尔光学科技有限公司 | Injection molding material gate processing device |
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| CN203637110U (en) * | 2013-12-11 | 2014-06-11 | 上海克比精密塑胶模具有限公司 | Automatic pouring gate shearing device for one-die multi-cavity type sliding block |
| CN103991177A (en) * | 2014-05-05 | 2014-08-20 | 昆山市大久电子有限公司 | Internal-thread automatic demolding injection mold |
| KR20160010696A (en) * | 2014-07-17 | 2016-01-28 | 금능정밀(주) | Method and apparatus gate auto cutting, and molding apparatus using it |
| CN105415608A (en) * | 2015-12-23 | 2016-03-23 | 平江县职业技术学校 | Automatic sprue cut-off device |
| CN105904680A (en) * | 2016-06-07 | 2016-08-31 | 广东联塑科技实业有限公司 | Die for automatically cutting drainage opening |
| CN206840635U (en) * | 2017-05-02 | 2018-01-05 | 永高股份有限公司 | Automatic gate cutting structure in a kind of mould mould |
| CN107379438A (en) * | 2017-08-28 | 2017-11-24 | 广东联塑科技实业有限公司 | A kind of die device of PP R pipe fitting automatic water gap shearings |
| CN107953524A (en) * | 2017-12-13 | 2018-04-24 | 余姚市宏硕模具制造有限公司 | A kind of electric auxiliary demoulding mechanism of plastic cover mould |
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