CN211941893U - Stroke-adjustable cylinder - Google Patents
Stroke-adjustable cylinder Download PDFInfo
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- CN211941893U CN211941893U CN202020389096.6U CN202020389096U CN211941893U CN 211941893 U CN211941893 U CN 211941893U CN 202020389096 U CN202020389096 U CN 202020389096U CN 211941893 U CN211941893 U CN 211941893U
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- cylinder
- needle
- stroke
- adjustable
- cylinder body
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Abstract
The utility model discloses an adjustable cylinder of stroke, this adjustable cylinder of stroke includes: a cylinder body; a cylinder head disposed on the block; a piston disposed within the cylinder; and the thread adjusting button is arranged on the cylinder cover and connected with the cylinder body. The utility model provides an adjustable cylinder has structurally increased the screw thread adjusting knob, only needs rotatory screw thread adjusting knob, and the position of piston just can change along with the position of cylinder body to adjust the length of needle, needle alright in order to reach runner sealing position, the needle appears when avoiding moulding plastics and crosses the short bad product problem of moulding plastics that can not live glue, needle overlength bad mould benevolence is beaten to the needle, need not dismantle the cylinder and reprocess the needle, thereby guarantee normal and high efficiency's production cycle, and then improved production efficiency.
Description
Technical Field
The utility model relates to a cylinder technical field especially relates to an adjustable cylinder of stroke.
Background
At present, after the cylinder assembly in the hot runner system is finished, the valve needle is installed on the piston. Wherein the distance from the head gate sealing position of the valve pin to the mold panel is relatively fixed and is not adjustable. Because the valve needle can take place thermal expansion because of the hot runner heating during injection moulding production for the length of valve needle can produce the change, and factors such as mould embryo, mould benevolence processing inaccuracy and accumulative tolerance can make the valve needle arrive the position that the runner was sealed inaccurate. When the injection molding is carried out, if the valve needle is too short, the sprue cannot be sealed, if the valve needle is too long, the mold core is damaged, and the injection molding problem of a poor product can be caused by the too short or too long valve needle. When the injection molding problem of poor products caused by the fact that the valve needle is too short to seal the sprue or the valve needle is too long to damage the mold core, the valve needle needs to be machined again by disassembling the cylinder to enable the valve needle to reach the sprue sealing position, so that long time is consumed, and the production efficiency is reduced.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art not enough, an object of the utility model is to provide a stroke adjustable cylinder to when solving and appearing the needle short seal when moulding plastics and can not seal runner or needle overlength and beat bad mould benevolence and cause bad product problem of moulding plastics, need dismantle the cylinder and reprocess the needle and just can make the needle reach the problem that the runner seals the position.
The technical scheme of the utility model as follows:
an adjustable stroke cylinder, comprising:
a cylinder body;
a cylinder head disposed on the block;
a piston disposed within the cylinder; and
and the thread adjusting button is arranged on the cylinder cover and connected with the cylinder body.
The utility model discloses further set up, the screw thread adjusting knob includes regulating part and connecting portion, the regulating part sets up on the connecting portion; the adjusting portion is connected with the cylinder head, and the connecting portion is connected with the cylinder block.
The utility model discloses further set up, regulation portion with connecting portion integrated into one piece.
The utility model discloses further set up, be provided with the thread on the regulating part, be provided with on the cylinder head with the screw hole of regulating part adaptation, the screw thread adjusting knob passes through the regulating part with cylinder head threaded connection.
The utility model discloses further set up, be provided with a plurality of through-holes on the connecting portion, the cylinder body corresponds the position of through-hole is provided with the screw hole, connecting portion pass through the set screw with cylinder body threaded connection.
The utility model discloses further set up, still include a needle, the needle setting is in on the piston.
The utility model discloses further set up, still include a mould panel, the mould panel sets up cylinder body one side and through the set screw with cylinder head threaded connection.
The utility model discloses further set up, the lower terminal surface of cylinder body with the regulation clearance has between the mould panel.
The utility model discloses further set up, be provided with a plurality of stop screws on the cylinder head, stop screw is located the opposite side of screw thread adjusting knob.
The utility model provides an adjustable cylinder of stroke, this adjustable cylinder of stroke includes: a cylinder body; a cylinder head disposed on the block; a piston disposed within the cylinder; and the thread adjusting button is arranged on the cylinder cover and connected with the cylinder body. The utility model provides an adjustable cylinder has structurally increased the screw thread adjusting knob, only needs rotatory screw thread adjusting knob, and the position of piston just can change along with the position of cylinder body to adjust the length of needle, needle alright in order to reach runner sealing position, the needle appears when avoiding moulding plastics and crosses the short bad product problem of moulding plastics that can not live glue, needle overlength bad mould benevolence is beaten to the needle, need not dismantle the cylinder and reprocess the needle, thereby guarantee normal and high efficiency's production cycle, and then improved production efficiency.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of a local structure of the middle stroke adjustable cylinder of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is the internal structure schematic diagram of the middle stroke adjustable cylinder of the present invention.
The various symbols in the drawings: 1. a cylinder body; 2. a cylinder head; 3. a piston; 4. a threaded adjusting knob; 41. an adjustment section; 42. a connecting portion; 5. a valve needle; 6. a mold face plate; 7. a limiting screw; 8. fixing screws; 9. a mold core; 10. and a gate.
Detailed Description
The utility model provides a stroke adjustable cylinder, this adjustable cylinder have structurally increased the screw thread adjusting knob, when the installation test, only need rotatory screw thread adjusting knob just can adjust the length of needle, needle alright in order to reach the sealed position of runner, can make appear when moulding plastics that the needle is too short to seal and can not live glue, the needle overlength beats the bad product problem of moulding plastics that bad mould benevolence leads to and obtain solving to guarantee normal and high efficiency's production cycle. In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the embodiments and claims, the terms "a" and "an" can mean "one or more" unless the article is specifically limited.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a preferred embodiment of a stroke-adjustable cylinder.
As shown in fig. 1, 2 and 3, a stroke-adjustable cylinder includes a cylinder block 1, a cylinder head 2, a piston 3, a needle 5, a die panel 6, and a screw knob 4. Specifically, the cylinder head 2 is disposed on the cylinder block 1, the piston 3 is disposed in the cylinder block 1, and the valve needle 5 is disposed on the piston 3, wherein the valve needle 5 includes a valve needle head 51 and a valve needle tail, the valve needle head 51 is connected to the piston 3, the valve needle head 51 is located at the gate 10 of the mold core 9, and the mold panel 6 is disposed on one side of the cylinder block 1 and is in threaded connection with the cylinder head 2 through a fixing screw 8. More specifically, the screw adjusting knob 4 is disposed on the cylinder head 2 and connected to the cylinder block 1, and the piston 3 is movable between the inner wall of the cylinder block 1 and the screw adjusting knob 4.
Through the technical scheme, because of the utility model discloses an adjustable cylinder has structurally increased screw thread adjusting button 4, and screw thread adjusting button 4 is through being connected with cylinder head 2, cylinder body 1 and screw thread adjusting button 4 fixed connection, piston 3 is in activity between inner wall and the screw thread adjusting button 4 of cylinder body 1, when the installation test, even needle 5 length is because of the thermal energy, mould embryo mould benevolence processing is inaccurate, the situation of stack tolerance scheduling problem can not reach the runner position, only need rotatory screw thread adjusting button 4 this moment, screw thread adjusting button 4 just can drive cylinder body 1 with the position of adjusting cylinder body 1, thereby drive piston 3 with adjusting piston 3's position, again because of needle 5 with piston 3 links together, and then can adjust needle 5's length, needle 5 alright reach runner sealing position. Therefore the utility model discloses can avoid appearing needle 5 short seal when moulding plastics and not live glue, needle 5 overlength and beat the bad product problem of moulding plastics of bad mould benevolence, and need not dismantle cylinder reprocess needle 5, only need through rotatory screw thread adjusting knob 4 promptly, just can adjust the sealed distance of position to mould panel 6 of runner of valve needle head 51 to guarantee normal and high efficiency's production cycle, and then improved production efficiency.
Referring to fig. 2 and 3, in a further embodiment of an embodiment, the threaded adjusting knob 4 includes an adjusting portion 41 and a connecting portion 42. Wherein the adjusting portion 41 is disposed on the connecting portion 42, and the adjusting portion 41 and the connecting portion 42 are integrally formed. Specifically, the adjusting portion 41 is connected to the cylinder head 2, the connecting portion 42 is connected to the cylinder block 1, and when the screw adjusting knob 4 is rotated, the adjusting portion 41 is screwed out or in from the cylinder head 2 and drives the connecting portion 42 to move up or down, so as to drive the cylinder block 1 connected to the connecting portion 42 to move up or down, so as to drive the piston 3 connected to the cylinder block 1 to move up or down, and further drive the valve needle 5 connected to the piston 3 to move up or down, so that the length of the valve needle 5 can be adjusted, and thus, the valve needle 5 can reach the gate sealing position.
In a further embodiment of an embodiment, the adjusting portion 41 is provided with a screw thread, the cylinder head 2 is provided with a threaded hole adapted to the adjusting portion 41, and the threaded adjusting knob 4 is in threaded connection with the cylinder head 2 through the adjusting portion 41, so as to achieve the purpose of moving the threaded adjusting knob 4 up and down on the cylinder head 2.
In a further implementation manner of an embodiment, a plurality of through holes are arranged on the connecting portion 42, threaded holes are arranged at positions of the cylinder body 1 corresponding to the through holes, and the connecting portion 42 is in threaded connection with the cylinder body 1 through a fixing screw 8 so as to connect the thread adjusting button 4 with the cylinder body 1, so that the cylinder body 1 is driven to move together through the thread adjusting button 4.
In a further embodiment of an embodiment, an adjusting gap is provided between the lower end surface of the cylinder 1 and the die panel 6, so that the cylinder 1 has an adjusting space when the screw adjusting knob 4 moves the cylinder 1.
In a further embodiment of an embodiment, a plurality of stop screws 7 are provided on the cylinder head 2, the stop screws 7 being located on opposite sides of the threaded adjusting knob 4. In one embodiment, two limiting screws 7 are provided and are oppositely arranged on opposite sides of the thread adjusting knob 4 to limit the thread adjusting knob 4.
To sum up, the utility model provides an adjustable cylinder of stroke, this adjustable cylinder of stroke includes: a cylinder body; a cylinder head disposed on the block; a piston disposed within the cylinder; and the thread adjusting button is arranged on the cylinder cover and connected with the cylinder body. The utility model provides an adjustable cylinder has structurally increased the screw thread adjusting knob, only needs rotatory screw thread adjusting knob, and the position of piston just can change along with the position of cylinder body to adjust the length of needle, needle alright in order to reach runner sealing position, the needle appears when avoiding moulding plastics and crosses the short bad product problem of moulding plastics that can not live glue, needle overlength bad mould benevolence is beaten to the needle, need not dismantle the cylinder and reprocess the needle, thereby guarantee normal and high efficiency's production cycle, and then improved production efficiency.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. An adjustable stroke cylinder, comprising:
a cylinder body;
a cylinder head disposed on the block;
a piston disposed within the cylinder; and
and the thread adjusting button is arranged on the cylinder cover and connected with the cylinder body.
2. The stroke-adjustable cylinder according to claim 1, wherein the threaded adjustment knob includes an adjustment portion and a connection portion, the adjustment portion being provided on the connection portion; the adjusting portion is connected with the cylinder head, and the connecting portion is connected with the cylinder block.
3. The stroke-adjustable cylinder according to claim 2, wherein the adjustment portion and the connection portion are integrally formed.
4. The stroke-adjustable cylinder according to claim 2, wherein the adjusting portion is provided with a screw thread, the cylinder head is provided with a threaded hole adapted to the adjusting portion, and the threaded adjusting knob is threadedly connected to the cylinder head through the adjusting portion.
5. The stroke-adjustable cylinder according to claim 2, wherein a plurality of through holes are formed in the connecting portion, threaded holes are formed in the cylinder body at positions corresponding to the through holes, and the connecting portion is in threaded connection with the cylinder body through fixing screws.
6. The stroke-adjustable cylinder of claim 1, further comprising a valve needle disposed on said piston.
7. The stroke-adjustable cylinder according to claim 1, further comprising a die plate provided on one side of the cylinder block and screwed with the cylinder head by a fixing screw.
8. The stroke-adjustable cylinder of claim 7, wherein an adjustment gap is provided between the lower end surface of the cylinder block and the die face plate.
9. The stroke-adjustable cylinder according to claim 1, wherein a plurality of limit screws are provided on the cylinder head, the limit screws being located on opposite sides of the threaded adjustment knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389096.6U CN211941893U (en) | 2020-03-24 | 2020-03-24 | Stroke-adjustable cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020389096.6U CN211941893U (en) | 2020-03-24 | 2020-03-24 | Stroke-adjustable cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211941893U true CN211941893U (en) | 2020-11-17 |
Family
ID=73185549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020389096.6U Active CN211941893U (en) | 2020-03-24 | 2020-03-24 | Stroke-adjustable cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211941893U (en) |
-
2020
- 2020-03-24 CN CN202020389096.6U patent/CN211941893U/en active Active
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