CN204658825U - A kind of pneumatic nozzle mechanism of injection machine - Google Patents
A kind of pneumatic nozzle mechanism of injection machine Download PDFInfo
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- CN204658825U CN204658825U CN201520376884.0U CN201520376884U CN204658825U CN 204658825 U CN204658825 U CN 204658825U CN 201520376884 U CN201520376884 U CN 201520376884U CN 204658825 U CN204658825 U CN 204658825U
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- nozzle
- passage
- colloidal sol
- injection machine
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Abstract
The utility model provides a kind of pneumatic nozzle mechanism of injection machine, belongs to injection-moulding device technical field.The pneumatic nozzle mechanism of this injection machine comprises colloidal sol cylinder, flange, has the nozzle of nozzle passage, axially conveying passage is offered and conveying passage and nozzle passage UNICOM form injection passage in the middle part of colloidal sol cylinder, wherein one section, injection passage caves inward and forms sealing anchor ring, and in conveying passage, activity is inserted with sealing pin and sealing pin front end is provided with sealing head; The retracting mechanism that can drive the axial displacement of sealing pin is installed outside colloidal sol cylinder, when retracting mechanism drives sealing pin to advance, between sealing head and sealing anchor ring, there is gap, make conveying passage and nozzle channel conductive; When retracting mechanism drives sealing pin to retreat, sealing head and sealing anchor ring are tightly connected, and conveying passage and nozzle passage are disconnected.The pneumatic nozzle mechanism of this injection machine have reasonable in design, operating efficiency is high, produce the advantage of flash phenomena when can avoid sealing.
Description
Technical field
The utility model belongs to injection-moulding device technical field, relates to a kind of pneumatic nozzle mechanism of injection machine, particularly a kind of pneumatic nozzle mechanism being applicable to the injection machine of specific material injection moulding and vertical injection moulding.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector, and it utilizes mould for plastics to make the main former of the plastic products of various shape thermoplastic or thermosetting material.
Along with the quickening of modernization construction step, injection machine has been widely used in the every field of each department of national economy such as building, packaging, electric appliance and electronic, agricultural, automobile, communications, light industry, petro chemical industry, mechanical industry, national defense industry and people's life, demonstrates very important effect.
In course of normal operation, injection machine will complete injection when moving forward and backward, the material (plastics) of fusing easily flows out from nozzle bore, especially low viscosity material, such as: PA (polyacrylate), PPS (PPS polypropylene sebacate), PE (polyethylene), POM (polyformaldehyde), PP (polypropylene) etc., can be more obvious when these plastics flow out.For this reason, modern injection machine is typically equipped with pneumatic nozzle.
Pneumatic nozzle is a vitals of injection machine, and it can seal material quickly when screw rod preformed, avoids expecting to enter the air pocket produced when screw rod is return.But the pneumatic nozzle of existing most of injection machine is when sealing, and sealing original paper moves forward, and then the process of sealing just causes the spilling of material, cannot raw material be avoided completely to leak, the raw material especially during the vertical injection moulding of injection machine leaks.
In sum, for solving the deficiency on the pneumatic injection nozzle structure of existing injection machine, need to design a kind of reasonable in design, operating efficiency is high, produce the pneumatic nozzle mechanism of the injection machine of flash phenomena when can avoid sealing.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, propose a kind of reasonable in design, operating efficiency is high, produce the pneumatic nozzle mechanism of the injection machine of flash phenomena when can avoid sealing.
The purpose of this utility model realizes by following technical proposal: a kind of pneumatic nozzle mechanism of injection machine, comprises colloidal sol cylinder, is located at the flange of colloidal sol tube rear end, be located at colloidal sol cylinder front end and have the nozzle of nozzle passage, wherein:
Axially conveying passage is offered and conveying passage and nozzle passage UNICOM form injection passage in the middle part of colloidal sol cylinder, wherein one section, injection passage caves inward and forms sealing anchor ring, movablely in conveying passage is inserted with sealing pin and sealing pin front end is provided with the sealing head matched with sealing anchor ring;
Be provided with outside colloidal sol cylinder and be connected with sealing pin and the retracting mechanism of sealing pin axial displacement can be driven, when retracting mechanism drives sealing pin to advance, between sealing head and sealing anchor ring, there is gap and sealing head part stretches into nozzle passage, make conveying passage and nozzle channel conductive; When retracting mechanism drives sealing pin to retreat, sealing head and sealing anchor ring are tightly connected, and conveying passage and nozzle passage are disconnected.
As further improvement of the utility model, described conveying Channel front end is provided with the first taper surface, the second taper surface from front to back successively, described first taper surface is connected with nozzle passage, described sealing anchor ring to be arranged between the first taper surface, the second taper surface and for connecting the first taper surface and the second taper surface, described first taper surface, the second taper surface, sealing anchor ring three are that funnel-form is arranged, and described sealing head is that arrow shaped is arranged.
As further improvement of the utility model, described retracting mechanism comprises fork, the cylinder block be arranged on outside colloidal sol cylinder, the piston rod being movably equipped with piston and being connected with piston in cylinder block, hinged with colloidal sol cylinder in the middle part of described fork, the two ends of described fork respectively with in the middle part of sealing pin, piston-rod end is connected and three forms linkage, when piston actuated piston rod bounces back, piston rod is rotated by fork and then drives advance; When piston actuated piston rod stretches out, piston rod is rotated by fork and then drives retrogressing.
Further improve as of the present utility model; described cylinder block is made up of bonnet and the protecgulum be located on bonnet; described protecgulum and bonnet surround formation cavity volume and piston is arranged in this cavity volume; protecgulum is inserted with protective sleeve; described piston rod to be located in protective sleeve and to be connected with piston, is provided with the limited screw for limiting piston bar in protective sleeve.
As another improvement of the present utility model, described colloidal sol cylinder is set to nozzle junctor, shunting body, flange junctor from front to back successively, described flange and flange junctor compact siro spinning technology, described nozzle is plugged in nozzle junctor front end, and described injection passage runs through successively by nozzle, nozzle junctor, shunting body, flange junctor, flange.
As further improvement of the utility model, described bonnet is arranged on shunting body by symmetrically arranged two bracing frames.
As further improvement of the utility model, colloidal sol cylinder outer cladding is provided with at least one ceramic heating circle.
As further improvement of the utility model, coatedly in colloidal sol cylinder front end be provided with the first ceramic heating circle, whole lateral wall of described nozzle junctor and the portion outboard wall of shunting body front end are coated in the first ceramic heating circle.
As further improvement of the utility model, be provided with the second ceramic heating circle colloidal sol tube rear end is coated, whole lateral wall of described flange junctor and the portion outboard wall of shunting body rear end are coated in the second ceramic heating circle.
As further improvement of the utility model, be outside equipped with the 3rd ceramic heating circle at flange.
Based on technique scheme, the utility model embodiment at least can produce following technique effect: reasonable in design, the pneumatic nozzle mechanism of this injection machine can seal material quickly when sealing pin preformed, raw material during vertical injection moulding is avoided to leak, when sealing, sealing original paper (sealing pin) shrinks back, the process of sealing just can not cause the spilling of material, avoid the generation of flash phenomena during sealing, improve the operating efficiency of equipment, further increase production efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation of the utility model one preferred embodiment.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is the sectional view of the utility model one preferred embodiment.
Fig. 4 is the structure for amplifying schematic diagram at A place in Fig. 3.
Fig. 5 is the partial structurtes schematic diagram of the utility model one preferred embodiment.
Fig. 6 is the sectional view of Fig. 5.
In figure, 10, colloidal sol cylinder; 11, conveying passage; 12, nozzle junctor; 13, shunting body; 14, flange junctor; 20, flange; 30, nozzle; 31, nozzle passage; 41, sealing anchor ring; 42, the first taper surface; 43, the second taper surface; 50, sealing pin; 51, sealing head; 60, retracting mechanism; 61, fork; 621, bonnet; 622, protecgulum; 63, piston; 64, piston rod; 65, protective sleeve; 66, limited screw; 67, bracing frame; 71, the first ceramic heating circle; 72, the second ceramic heating circle; 73, the 3rd ceramic heating circle.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
A kind of pneumatic nozzle mechanism of the utility model protection, is not only applicable to the injection machine of specific material injection moulding, vertical injection moulding, can be applied to the injection machine of other effects according to actual conditions yet.
As shown in Figure 1 to Figure 3, the pneumatic nozzle mechanism of this injection machine comprises colloidal sol cylinder 10, be located at the flange 20 of colloidal sol cylinder 10 rear end, be located at colloidal sol cylinder 10 front end and have the nozzle 30 of nozzle passage 31, wherein:
Axially conveying passage 11 is offered and conveying passage 11 forms injection passage with nozzle passage 31 UNICOM in the middle part of colloidal sol cylinder 10, wherein one section, injection passage caves inward and forms sealing anchor ring 41, and in conveying passage 11, activity is inserted with sealing pin 50 and sealing pin 50 front end is provided with the sealing that matches with sealing anchor ring 41 51;
Be provided with outside colloidal sol cylinder 10 and be connected with sealing pin 50 and the retracting mechanism 60 of sealing pin 50 axial displacement can be driven, when retracting mechanism 60 drives sealing pin 50 to advance, sealing has gap between 51 and sealing anchor ring 41 and sealing 51 part stretch into nozzle passage 31, makes conveying passage 11 and nozzle passage 31 conducting; When retracting mechanism 60 drives sealing pin 50 to retreat, sealing 51 and sealing anchor ring 41 are tightly connected, and conveying passage 11 and nozzle passage 31 are disconnected.
Colloidal sol cylinder 10 can be used for further melting materials capable (plastics), flange 20 is convenient to be connected with extraneous mechanism, material finally penetrates from the outlet of nozzle passage 31, the both sides width of sealing anchor ring 41 is all greater than the width of sealing anchor ring 41, sealing pin 50 is provided with the sealing 51 for sealing, integrated model structural design is simple, rationally distributed.
In the utility model, outer inside casing can be utilized as power source, nozzle 30 is contained on colloidal sol cylinder 10, flange 20 can be provided with the through hole matched with cylinder, the direction of adjusting cylinders can be come by the through hole on flange 20.
The course of work of this pneumatic nozzle mechanism is as follows:
When needs injection, control retracting mechanism 60 and sealing pin 50 is moved forward and sealing 51 and sealing anchor ring 41 are staggered, now sealing forms the gap for conveying between 51 and sealing anchor ring 41, finally realize injection action;
When injection is complete and mechanism starts preformed, controlling retracting mechanism 60 makes sealing pin 50 toward pulling back and making sealing 51 seal with sealing anchor ring 41, sealing pin 50 realizes sealing action, because sealing pin 50 is that the volume being positioned at sealing anchor ring 41 front portion in injection passage increases toward pulling back, so there is no the spilling of expecting in the process of sealing, well solve common nozzle shortcoming at work.
The above-mentioned course of work is a work period of this pneumatic nozzle mechanism, can carry out reciprocating working according to the actual requirements, substantially increase production efficiency, and this pneumatic nozzle mechanism is active in one's movements, and good airproof performance is that other nozzle cannot be when.
It is worth mentioning that: the sealing of above-mentioned sealing pin 50 51 is positioned at sealing anchor ring 41 middle front part position always, in sealing process, the region of the extremely close sealing anchor ring 41 of power resorption that the material do not penetrated in nozzle passage 31 is pulled back by sealing pin 50, further avoid the generation of blowdown phenomenon.In addition, compare and sealing 51 is arranged on sealing anchor ring 41 postmedian position, the topology layout of sealing in this case 51 is more reasonable, as sealing 51 is arranged on sealing anchor ring 41 postmedian position, then when sealing, the action of sealing 51 should be advance, although now sealing 51 achieves sealing, also the material of front portion may be released outside nozzle passage 31.
The pneumatic nozzle mechanism of this injection machine in an initial condition, reasonable in design, the pneumatic nozzle mechanism of this injection machine can seal material quickly when sealing pin 50 preformed, avoid raw material during vertical injection moulding to leak, when sealing, sealing original paper (sealing pin 50) shrinks back, the process of sealing just can not cause the spilling of material, avoid the generation of flash phenomena during sealing, improve the operating efficiency of equipment, further increase production efficiency.
The pneumatic nozzle mechanism of this injection machine is in order to a series of problem that solves conventional pneumatic nozzle and produce when sealing and utility model, in whole sealing process, toward pulling back, sealing pin 50 ensure that material can not overflow by a retracting mechanism 60, solve the shortcoming of common nozzle in sealing process, save the problem that raw material overflows, shorten molding cycle, improve operating efficiency, also make commissioning engineer free from the debugging of loaded down with trivial details nozzle.
Below in conjunction with Fig. 4 to Fig. 6, the technical solution of the utility model is optimized further: as shown in Figure 4, conveying passage 11 front end is provided with the first taper surface 42, second taper surface 43 from front to back successively, first taper surface 42 is connected with nozzle passage 31, preferred sealing anchor ring 41 to be arranged between the first taper surface 42, second taper surface 43 and for connecting the first taper surface 42 and the second taper surface 43, first taper surface 42, second taper surface 43, sealing anchor ring 41 three are that funnel-form is arranged, described sealing 51 setting in arrow shaped.
In sealing process, the lateral wall of sealing 51 seals with the first taper surface 42 gradually and then finally realizes sealing 51 and seals with sealing anchor ring 41, and the second taper surface 43 be arranged so that material flow is through sealing anchor ring 41 and to flow into the first taper surface 42 more smooth and easy, its effect is similar to funnel.
Sagittate sealing 51 coordinates tightr with above-mentioned taper surface and sealing anchor ring 41, improve sealing property, reduce equipment attrition, the nozzle taper surface that matches with the first taper surface 42 of setting nozzle passage 31 in that may correspond to and then for holding sealing 51.
Preferably, retracting mechanism 60 comprises fork 61, the cylinder block be arranged on outside colloidal sol cylinder 10, the piston rod 64 being movably equipped with piston 63 and being connected with piston 63 in cylinder block, hinged with colloidal sol cylinder 10 in the middle part of fork 61, the two ends of fork 61 respectively with in the middle part of sealing pin 50, piston rod 64 end is connected and three forms linkage, when piston 63 piston rod 64 bounces back, piston rod 64 is rotated by fork 61 and then drives advance; When piston 63 piston rod 64 is stretched out, piston rod 64 is rotated by fork 61 and then drives retrogressing.
When needs injection, piston 63 toward post-tensioning and piston rod 64 bounce back backward, piston rod 64 makes sealing pin 50 move forward by fork 61 transmission and sealing 51 and sealing anchor ring 41 is staggered, and then realizes injection action;
When injection is complete and mechanism starts preformed, piston 63 is pushed ahead and piston rod 64 is stretched out forward, piston rod 64 drives sealing pin 50 to pull back to make sealing 51 to seal with sealing anchor ring 41 by fork 61 backward, sealing pin 50 realizes sealing action, because sealing pin 50 is that the volume being positioned at sealing anchor ring 41 front portion in injection passage increases toward pulling back, so there is no the spilling of expecting in the process of sealing, well solve common nozzle shortcoming at work.
In the present case, utilize cylinder as power source, adopt linkage transmission, the thrust of cylinder is also amplified by linkage simultaneously, sealing original paper (sealing pin 50) is made to obtain enough power, cylinder seal original paper preferably adopts the resistant to elevated temperatures sealing original paper of external import, and the import and export pore of cylinder block, by solenoid control, fully ensure that the sensitivity of cylinder piston 63 action.
Further; cylinder block is made up of bonnet 621 and the protecgulum 622 be located on bonnet 621; protecgulum 622 and bonnet 621 surround formation cavity volume and piston 63 is arranged in this cavity volume; protecgulum 622 is inserted with protective sleeve 65; piston rod 64 to be located in protective sleeve 65 and to be connected with piston 63, is provided with the limited screw 66 for limiting piston bar 64 in protective sleeve 65.
Such retracting mechanism 60 design makes its work more stable, improve operating efficiency, and the setting of protective sleeve 65 and limited screw 66 also ensure that scope of activities and the displacement of linkage, ensure that production efficiency.
Preferably, colloidal sol cylinder 10 is set to nozzle junctor 12, shunting body 13, flange junctor 14 from front to back successively, flange 20 and flange junctor 14 compact siro spinning technology, nozzle is plugged in nozzle junctor 12 front end, and injection passage runs through successively by nozzle, nozzle junctor 12, shunting body 13, flange junctor 14, flange 20.
In this case, colloidal sol cylinder 10 is rationally distributed, and each assembly layout is compact and connection is tight, and whole colloidal sol cylinder 10 is arranged in straight-tube shape, each passage inner is connected smooth and easy, makes nozzle mechanism stable working, ensure that the operating efficiency of injection, decrease volume, be convenient to follow-up clean and maintenance.
Bonnet 621 is arranged on shunting body 13 by symmetrically arranged two bracing frames 67.Be convenient to cylinder block installation and removal, make retracting mechanism 60 area occupied little.
Further preferably, colloidal sol cylinder 10 outer cladding is provided with at least one ceramic heating circle.
Concrete, coatedly in colloidal sol cylinder 10 front end be provided with the first ceramic heating circle 71, whole lateral wall of nozzle junctor 12 and the portion outboard wall of shunting body 13 front end are coated in the first ceramic heating circle 71; Coatedly in colloidal sol cylinder 10 rear end be provided with the second ceramic heating circle 72, whole lateral wall of flange junctor 14 and the portion outboard wall of shunting body 13 rear end are coated in the second ceramic heating circle 72; The 3rd ceramic heating circle 73 is outside equipped with at flange 20.
Ceramic heating circle and colloidal sol cylinder 10 cooperatively interact, ceramic heating circle rationally distributed and with coordinate closely between colloidal sol cylinder 10 all parts, make pneumatic nozzle mechanism can melting materials capable further, increase work efficiency.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (10)
1. a pneumatic nozzle mechanism for injection machine, is characterized in that: comprise colloidal sol cylinder, be located at the flange of colloidal sol tube rear end, be located at colloidal sol cylinder front end and have the nozzle of nozzle passage, wherein:
Axially conveying passage is offered and conveying passage and nozzle passage UNICOM form injection passage in the middle part of colloidal sol cylinder, wherein one section, injection passage caves inward and forms sealing anchor ring, movablely in conveying passage is inserted with sealing pin and sealing pin front end is provided with the sealing head matched with sealing anchor ring;
Be provided with outside colloidal sol cylinder and be connected with sealing pin and the retracting mechanism of sealing pin axial displacement can be driven, when retracting mechanism drives sealing pin to advance, between sealing head and sealing anchor ring, there is gap and sealing head part stretches into nozzle passage, make conveying passage and nozzle channel conductive; When retracting mechanism drives sealing pin to retreat, sealing head and sealing anchor ring are tightly connected, and conveying passage and nozzle passage are disconnected.
2. the pneumatic nozzle mechanism of a kind of injection machine according to claim 1, it is characterized in that: described conveying Channel front end is provided with the first taper surface, the second taper surface from front to back successively, described first taper surface is connected with nozzle passage, described sealing anchor ring to be arranged between the first taper surface, the second taper surface and for connecting the first taper surface and the second taper surface, described first taper surface, the second taper surface, sealing anchor ring three are that funnel-form is arranged, and described sealing head is that arrow shaped is arranged.
3. the pneumatic nozzle mechanism of a kind of injection machine according to claim 1 and 2, it is characterized in that: described retracting mechanism comprises fork, the cylinder block be arranged on outside colloidal sol cylinder, the piston rod being movably equipped with piston and being connected with piston in cylinder block, hinged with colloidal sol cylinder in the middle part of described fork, the two ends of described fork respectively with in the middle part of sealing pin, piston-rod end is connected and three forms linkage, when piston actuated piston rod bounces back, piston rod is rotated by fork and then drives advance; When piston actuated piston rod stretches out, piston rod is rotated by fork and then drives retrogressing.
4. the pneumatic nozzle mechanism of a kind of injection machine according to claim 3; it is characterized in that: described cylinder block is made up of bonnet and the protecgulum be located on bonnet; described protecgulum and bonnet surround formation cavity volume and piston is arranged in this cavity volume; protecgulum is inserted with protective sleeve; described piston rod to be located in protective sleeve and to be connected with piston, is provided with the limited screw for limiting piston bar in protective sleeve.
5. the pneumatic nozzle mechanism of a kind of injection machine according to claim 1 and 2, it is characterized in that: described colloidal sol cylinder is set to nozzle junctor, shunting body, flange junctor from front to back successively, described flange and flange junctor compact siro spinning technology, described nozzle is plugged in nozzle junctor front end, and described injection passage runs through successively by nozzle, nozzle junctor, shunting body, flange junctor, flange.
6. the pneumatic nozzle mechanism of a kind of injection machine according to claim 4, is characterized in that: described bonnet is arranged on shunting body by symmetrically arranged two bracing frames.
7. the pneumatic nozzle mechanism of a kind of injection machine according to claim 1 and 2, is characterized in that: colloidal sol cylinder outer cladding is provided with at least one ceramic heating circle.
8. the pneumatic nozzle mechanism of a kind of injection machine according to claim 5, it is characterized in that: coatedly in colloidal sol cylinder front end be provided with the first ceramic heating circle, whole lateral wall of described nozzle junctor and the portion outboard wall of shunting body front end are coated in the first ceramic heating circle.
9. the pneumatic nozzle mechanism of a kind of injection machine according to claim 8, it is characterized in that: be provided with the second ceramic heating circle colloidal sol tube rear end is coated, whole lateral wall of described flange junctor and the portion outboard wall of shunting body rear end are coated in the second ceramic heating circle.
10. the pneumatic nozzle mechanism of a kind of injection machine according to claim 9, is characterized in that: be outside equipped with the 3rd ceramic heating circle at flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376884.0U CN204658825U (en) | 2015-06-03 | 2015-06-03 | A kind of pneumatic nozzle mechanism of injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376884.0U CN204658825U (en) | 2015-06-03 | 2015-06-03 | A kind of pneumatic nozzle mechanism of injection machine |
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| Publication Number | Publication Date |
|---|---|
| CN204658825U true CN204658825U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520376884.0U Expired - Fee Related CN204658825U (en) | 2015-06-03 | 2015-06-03 | A kind of pneumatic nozzle mechanism of injection machine |
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| CN (1) | CN204658825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890185A (en) * | 2015-06-03 | 2015-09-09 | 宁波巴斯顿机械科技有限公司 | Pneumatic nozzle mechanism of injection molding machine |
| CN112476974A (en) * | 2020-12-22 | 2021-03-12 | 安徽省灵磁新材料科技股份有限公司 | Pneumatic nozzle mechanism of injection molding machine for producing magnetic plastics |
-
2015
- 2015-06-03 CN CN201520376884.0U patent/CN204658825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890185A (en) * | 2015-06-03 | 2015-09-09 | 宁波巴斯顿机械科技有限公司 | Pneumatic nozzle mechanism of injection molding machine |
| CN112476974A (en) * | 2020-12-22 | 2021-03-12 | 安徽省灵磁新材料科技股份有限公司 | Pneumatic nozzle mechanism of injection molding machine for producing magnetic plastics |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20190603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |