CN215242567U - Single valve nozzle - Google Patents
Single valve nozzle Download PDFInfo
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- CN215242567U CN215242567U CN202121552748.4U CN202121552748U CN215242567U CN 215242567 U CN215242567 U CN 215242567U CN 202121552748 U CN202121552748 U CN 202121552748U CN 215242567 U CN215242567 U CN 215242567U
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Abstract
The utility model relates to a hot runner technical field provides a single valve is chewed, chew body and cylinder body including heat, the single valve is chewed and is still included: the cylinder cover is provided with a cylinder cover flow passage; the piston is arranged in the cylinder body, a piston flow passage is arranged in the piston, the cylinder cover flow passage is communicated with the piston flow passage, and the piston flow passage is communicated with the hot nozzle flow passage of the hot nozzle body to form a straight-through flow passage; the hot nozzle body is located to the one end of needle, and the other end of needle is equipped with the connection end, is equipped with the through-hole on the connection end, and the needle that has the connection end is located in the piston runner, and through-hole and piston runner intercommunication. The single valve that this embodiment provided is chewed, its overall structure is simpler to reduced the processing degree of difficulty and processing cost, abandoned the valve needle cover among the prior art completely, at the in-process of moulding plastics material, the sizing material through direct runner alright with the realization moulding plastics, whole process need not the runner switching, make the injection pressure in the runner lossless, and then the consumption of equipment can not increase yet, practiced thrift the cost.
Description
Technical Field
The utility model relates to a hot runner technical field, more specifically say, relate to a single valve is chewed.
Background
In the liquid silicone single valve nozzle structure, a valve needle is usually fixed on a piston and penetrates through a valve needle sleeve to be arranged inside a flow channel of a hot nozzle body, wherein the valve needle sleeve is used for preventing rubber in the flow channel of the hot nozzle body from flowing back to the piston along the valve needle during injection molding, the valve needle sleeve needs to move while preventing the rubber from flowing back, and the valve needle sleeve are matched through a micron-sized hole shaft, so that extremely high processing precision is required, and the structure is complex. Meanwhile, in order to avoid opening the valve needle sleeve, a multi-stage runner needs to be designed to be connected into the runner of the hot nozzle body, and the injection molding pressure of the runner after multiple times of connection is reduced, so that the power consumption of the device is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single valve is chewed to the single valve who solves among the prior art chews the structure complicacy, and injects the lower technical problem of pressure in the runner.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a single valve is chewed, chew body and cylinder body including heat, single valve is chewed and is still included:
a cylinder head having a cylinder head flow passage;
the piston is arranged in the cylinder body, a piston flow passage is arranged in the piston, the cylinder cover flow passage is communicated with the piston flow passage, and the piston flow passage is communicated with the hot nozzle flow passage of the hot nozzle body to form a straight-through flow passage;
the hot nozzle comprises a hot nozzle body, a valve needle, a connecting end, a through hole, a piston flow channel and a connecting end, wherein one end of the valve needle is arranged in the hot nozzle body, the other end of the valve needle is provided with the connecting end, the connecting end is provided with the through hole, the valve needle with the connecting end is arranged in the piston flow channel, and the through hole is communicated with the piston flow channel.
The single valve nozzle described above, said piston comprising:
the upper piston is arranged in the cylinder body and provided with a first flow passage, and the cylinder cover flow passage is communicated with the first flow passage;
the piston rod is arranged in the cylinder body and connected with the upper piston, a second flow channel is arranged on the piston rod, the piston rod is arranged on one side of the upper piston and connected with the upper piston, the first flow channel is communicated with the second flow channel to form the piston flow channel, and the second flow channel is communicated with the hot nozzle flow channel.
According to the single valve nozzle, the joint of the upper piston and the piston rod is provided with the connecting concave part, and the connecting end is limited and fixed through the connecting concave part.
According to the single valve nozzle, the piston rod and the upper piston are sealed through the first sealing piece.
According to the single valve nozzle, at least one through hole is formed in the connecting end, and the through hole is a waist-shaped through hole.
According to the single valve nozzle, the number of the waist-shaped through holes is two, and the two waist-shaped through holes are centrosymmetric about the center of the connecting end.
According to the single valve nozzle, the upper piston comprises a piston body and a connecting part, the connecting part is arranged on one side, away from the piston rod, of the piston body and is connected with the piston body, a second sealing element is arranged on the outer wall of the connecting part, and the connecting part and a cylinder cover flow passage are sealed through the second sealing element.
According to the single valve nozzle, a piston rod cavity is arranged in the cylinder body, the piston rod is arranged in the piston rod cavity, a third sealing element is sleeved outside the piston rod, and the piston rod cavity are sealed through the third sealing element.
According to the single valve nozzle, the single valve nozzle further comprises a first quick connector for connecting air, and the first quick connector is connected with the cylinder cover and communicated with the piston cavity of the piston;
the single valve nozzle further comprises a second quick connector for air connection, and the second quick connector is connected with the cylinder body and communicated with the piston cavity of the piston.
According to the single-valve nozzle, the single-valve nozzle further comprises a water conveying sleeve, and the water conveying sleeve is arranged outside the hot nozzle body and used for cooling rubber materials in the hot nozzle flow channel.
The utility model provides a beneficial effect that single valve chewed lies in at least:
the single valve that this embodiment provided is chewed, has abandoned the valve needle cover among the prior art completely, directly sets up the piston runner in the piston to be equipped with the through-hole on the connecting end of the valve needle that sets up in the piston runner, it has guaranteed that the sizing material can flow smoothly in the piston runner, and its piston runner is direct to communicate with the cylinder cap runner, and the piston runner is direct to chew the runner intercommunication with heat, forms straight-through runner, makes the overall structure of single valve mouth simpler, and has reduced the processing degree of difficulty and processing cost. In the process of injection molding of the rubber material, the rubber material can be injected through the through flow channel, and the whole process does not need flow channel switching, so that the injection molding pressure in the flow channel is not lost, the power consumption of equipment is not increased, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a single valve nozzle provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a section of a single valve nozzle provided by the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a glue flowing path in a single valve nozzle provided by the embodiment of the invention;
fig. 4 is a schematic structural diagram of a valve needle provided by an embodiment of the present invention;
FIG. 5 is a schematic structural view of portion A of FIG. 2;
FIG. 6 is a schematic structural diagram of portion B of FIG. 2;
fig. 7 is a schematic structural view of a portion C in fig. 2.
Wherein, in the figures, the respective reference numerals:
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1, the present embodiment provides a single-valve nozzle 100, including a hot nozzle body 10 and a cylinder 20, and referring to fig. 2, the single-valve nozzle 100 further includes: a cylinder head 30, said cylinder head 30 having a cylinder head flow passage 31; the piston 40 is arranged in the cylinder body 20, a piston flow channel 41 is arranged in the piston 40, the cylinder cover flow channel 31 is communicated with the piston flow channel 41, and the piston flow channel 41 is communicated with the hot nozzle flow channel 11 of the hot nozzle body 10 to form a straight-through flow channel (see fig. 3); the valve needle 50, one end of the valve needle 50 is disposed in the hot nozzle body 10, the other end of the valve needle 50 is provided with a connecting end 51, the connecting end 51 is provided with a through hole 511 (see fig. 4), the valve needle 50 with the connecting end 51 is disposed in the piston flow channel 41, and the through hole 511 is communicated with the piston flow channel 41.
The working principle and the working process of the single valve nozzle 100 provided by the embodiment are as follows:
according to the single valve nozzle 100 provided by the embodiment, the cylinder cover runner 31 of the cylinder cover 30 is communicated with the piston runner 41 arranged in the piston 40, the piston runner 41 is communicated with the hot nozzle runner 11 of the hot nozzle body 10, and a through runner is formed, after glue is injected from the cylinder cover runner 31 of the cylinder cover 30, the glue directly flows into the piston runner 41, and the connecting end 51 of the valve needle 50 arranged in the piston runner 41 is provided with the through hole 511, and the through hole 511 is communicated with the piston runner 41, so that the glue can smoothly flow in the piston runner 41, that is, the glue flowing into the piston runner 41 can flow through the through hole 511 and continue to flow in the piston runner 41, and then flows into the hot nozzle runner 11 communicated with the piston runner 41, so that glue injection molding is realized. The glue material realizes the injection molding of the glue material through the straight-through flow channel, and the flow channel switching is not needed any more, so that the injection molding pressure in the flow channel is not lost, and the power consumption of the equipment is not increased.
The single valve mouth 100 provided by the embodiment has the advantages that:
the single valve nozzle 100 provided by the embodiment completely abandons a valve needle sleeve in the prior art, the piston runner 41 is directly arranged in the piston 40, and the connecting end 51 of the valve needle 50 arranged in the piston runner 41 is provided with the through hole 511, so that the rubber material can smoothly flow in the piston runner 41, the piston runner 41 is directly communicated with the cylinder cover runner 31, and the piston runner 41 is directly communicated with the hot nozzle runner 11 to form a direct runner, so that the integral structure of the single valve nozzle 100 is simpler, and the processing difficulty and the processing cost are reduced. In the process of injection molding of the rubber material, the rubber material can be injected through the through flow channel, and the whole process does not need flow channel switching, so that the injection molding pressure in the flow channel is not lost, the power consumption of equipment is not increased, and the cost is saved.
In a preferred embodiment, referring to fig. 2, the piston 40 comprises: the upper piston 42 is arranged in the cylinder body 20, the upper piston 42 is provided with a first flow passage 421, and the cylinder cover flow passage 31 is communicated with the first flow passage 421; the piston rod 43 is disposed in the cylinder 20 and connected to the upper piston 42, the piston rod 43 is provided with a second flow channel 431, the piston rod 43 is disposed on one side of the upper piston 42 and connected to the upper piston 42, the first flow channel 421 is communicated with the second flow channel 431 to form the piston flow channel 41, and the second flow channel 431 is communicated with the hot nozzle flow channel 11.
A cylinder cover flow passage 31 is communicated with a first flow passage 421, the first flow passage 421 is communicated with a second flow passage 431, the second flow passage 431 is communicated with a hot nozzle flow passage 11 to form a straight flow passage, the injection molding can be realized through the straight flow passage by using the rubber material, and the whole process does not need flow passage switching, so that the injection molding pressure in the flow passage is not lost.
In a preferred embodiment, referring to fig. 2 and 5, a connecting recess 44 is disposed at a connecting position of the upper piston 42 and the piston rod 43, and the connecting end 51 is fixed by the connecting recess 44.
The connecting concave part 44 is arranged at the connecting part of the upper piston 42 and the piston rod 43, the outer edge of the connecting end head 51 is clamped in the connecting concave part 44, the connecting concave part 44 can limit and fix the connecting end head 51, so that the connecting end head 51 can be stably fixed at the connecting part of the upper piston 42 and the piston rod 43, and the disassembly and the assembly are convenient.
In a preferred embodiment, referring to fig. 5, the piston rod 43 and the upper piston 42 are sealed by a first sealing member 45. The piston rod 43 is sealed by the first sealing element 45, and the rubber is prevented from leaking from the joint of the upper piston 42 and the piston rod 43.
Optionally, a first groove 432 is formed in one side, close to the upper piston 42, of the piston rod 43, a first sealing element 45 is arranged in the first groove 432, and the first sealing element 45 is fixed in a limiting manner through the first groove 432, so that the first sealing element 45 can be stably placed between the upper piston 42 and the piston rod 43, and further, it is better ensured that the glue cannot leak from the connection between the upper piston 42 and the piston rod 43.
In a preferred embodiment, referring to fig. 4, at least one through hole 511 is formed on the connecting terminal 51, and the through hole 511 is a kidney-shaped through hole. The waist-shaped through hole 511 can ensure that the rubber material smoothly flows through the piston flow channel 41.
In a preferred embodiment, referring to fig. 4, the number of the kidney-shaped through holes is two, and the two kidney-shaped through holes are centrosymmetric with respect to the center of the connecting terminal 51. Two waist-shaped through holes 511 are arranged on the connecting end 51, which are symmetrical with respect to the center of the connecting end 51, and have the same flow rate, and ensure that the maximum flow rate of the sizing material can flow through the piston flow channel 41.
In a preferred embodiment, referring to fig. 2 and 6, the upper piston 42 includes a piston body 423 and a connecting portion 424, the connecting portion 424 is disposed on a side of the piston body 423 away from the piston rod 43 and connected to the piston body 423, a second sealing member 4241 is disposed on an outer wall of the connecting portion 424, and the connecting portion 424 and the cylinder head flow passage 31 are sealed by the second sealing member 4241. The connecting part 424 and the cylinder cover runner 31 are sealed through the second sealing element 4241, so that the rubber material cannot leak from the cylinder cover runner 31 in the process that the piston 40 moves up and down, and the overall sealing performance of the whole straight-through runner is improved.
In a preferred embodiment, referring to fig. 2 and fig. 7, a piston rod cavity 21 is disposed in the cylinder 20, the piston rod 43 is disposed in the piston rod cavity 21, a third sealing member 433 is sleeved outside the piston rod 43, and the piston rod 43 and the piston rod cavity 21 are sealed by the third sealing member 433. The piston rod cavity 21 and the piston rod 43 are sealed through the third sealing element 433, so that the rubber material cannot enter the piston rod cavity 21 in the up-and-down movement process of the piston 40, and the overall sealing performance of the whole straight-through flow passage is improved.
In a preferred embodiment, referring to fig. 2, 6 and 7, the upper piston 42 includes a piston body 423 and a connecting portion 424, the connecting portion 424 is disposed on a side of the piston body 423 away from the piston rod 43 and connected to the piston body 423, a second sealing element 4241 is disposed on an outer wall of the connecting portion 424, and the connecting portion 424 and the cylinder head flow passage 31 are sealed by the second sealing element 4241; the improved cylinder is characterized in that a piston rod cavity 21 is arranged in the cylinder body 20, the piston rod 43 is arranged in the piston rod cavity 21, a third sealing element 433 is sleeved outside the piston rod 43, and the piston rod 43 and the piston rod cavity 21 are sealed through the third sealing element 433. The connecting portion 424 and the cylinder head runner 31 are sealed through the second sealing element 4241, so that rubber materials cannot leak from the cylinder head runner 31 in the up-and-down movement process of the piston 40, the piston rod cavity 21 and the piston rod 43 are sealed through the third sealing element 433, so that the rubber materials cannot enter the piston rod cavity 21 in the up-and-down movement process of the piston 40, and the overall sealing performance of the whole through runner is improved.
Optionally, referring to fig. 2 and 6, a second groove 4242 is formed on the connecting portion 424, and a second sealing member 4241 is disposed in the second groove 4242. Optionally, two second grooves 4242 are formed in the connecting portion 424, and correspondingly, the number of the second sealing elements 4241 is two, so that the overall sealing performance of the through flow passage is further improved.
Optionally, referring to fig. 2 and 7, a third groove 434 is formed on the piston rod 43, and a third sealing member 433 is disposed in the third groove 434. Optionally, two third grooves 432 are formed in the piston rod 43, and correspondingly, the number of the third sealing members 433 is two, so that the overall sealing performance of the through flow passage is further improved. It should be understood that the number of the second seal 4241 and the third seal 433 is not limited to two, and other values are possible, and are not limited herein.
In a preferred embodiment, referring to fig. 2, the single valve nozzle 100 further includes a first quick coupling 60 for receiving air, the first quick coupling 60 is connected to the cylinder head 30 and is communicated with the piston cavity 22 of the piston 40; the single valve nozzle 100 further comprises a second quick coupling 70 for receiving air, and the second quick coupling 70 is connected with the cylinder 20 and is communicated with the piston cavity 22 of the piston 40. The first quick coupling 60 and the second quick coupling 70 are connected to a solenoid valve, and the control piston 40 moves up and down by the cooperation of the first quick coupling 60 and the second quick coupling 70.
In a preferred embodiment, referring to fig. 2, the single-valve nozzle 100 further comprises a water conveying sleeve 80, and the water conveying sleeve 80 is arranged outside the hot nozzle body 10 and used for cooling the rubber in the hot nozzle flow passage 11. The water conveying sleeve 80 is internally provided with circulating cooling water for cooling the rubber material in the hot nozzle runner 11 so as to prevent the rubber material from being heated and solidified in advance.
Optionally, a heat insulation cap 12 is arranged at the gate end of the hot nozzle body 10, and the heat insulation cap 12 is used for blocking the heat of the mold and preventing the glue from being heated and solidified.
In summary, the present embodiment provides a single-valve nozzle 100, which includes a hot nozzle body 10 and a cylinder 20, and referring to fig. 2, the single-valve nozzle 100 further includes: a cylinder head 30, said cylinder head 30 having a cylinder head flow passage 31; the piston 40 is arranged in the cylinder body 20, a piston flow channel 41 is arranged in the piston 40, the cylinder cover flow channel 31 is communicated with the piston flow channel 41, and the piston flow channel 41 is communicated with the hot nozzle flow channel 11 of the hot nozzle body 10 to form a straight-through flow channel; the valve needle 50, one end of the valve needle 50 is disposed in the hot nozzle body 10, the other end of the valve needle 50 is provided with a connecting end 51, the connecting end 51 is provided with a through hole 511 (see fig. 4), the valve needle 50 with the connecting end 51 is disposed in the piston flow channel 41, and the through hole 511 is communicated with the piston flow channel 41. The single valve nozzle 100 provided by the embodiment completely abandons a valve needle sleeve in the prior art, the piston runner 41 is directly arranged in the piston 40, and the connecting end 51 of the valve needle 50 arranged in the piston runner 41 is provided with the through hole 511, so that the rubber material can smoothly flow in the piston runner 41, the piston runner 41 is directly communicated with the cylinder cover runner 31, and the piston runner 41 is directly communicated with the hot nozzle runner 11 to form a direct runner, so that the integral structure of the single valve nozzle 100 is simpler, and the processing difficulty and the processing cost are reduced. In the process of injection molding of the rubber material, the rubber material can be injected through the through flow channel, and the whole process does not need flow channel switching, so that the injection molding pressure in the flow channel is not lost, the power consumption of equipment is not increased, and the cost is saved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A single valve nozzle comprises a hot nozzle body and a cylinder body, and is characterized by further comprising:
a cylinder head having a cylinder head flow passage;
the piston is arranged in the cylinder body, a piston flow passage is arranged in the piston, the cylinder cover flow passage is communicated with the piston flow passage, and the piston flow passage is communicated with the hot nozzle flow passage of the hot nozzle body to form a straight-through flow passage;
the hot nozzle comprises a hot nozzle body, a valve needle, a connecting end, a through hole, a piston flow channel and a connecting end, wherein one end of the valve needle is arranged in the hot nozzle body, the other end of the valve needle is provided with the connecting end, the connecting end is provided with the through hole, the valve needle with the connecting end is arranged in the piston flow channel, and the through hole is communicated with the piston flow channel.
2. The single-valve nozzle of claim 1, wherein the piston comprises:
the upper piston is arranged in the cylinder body and provided with a first flow passage, and the cylinder cover flow passage is communicated with the first flow passage;
the piston rod is arranged in the cylinder body and connected with the upper piston, a second flow channel is arranged on the piston rod, the piston rod is arranged on one side of the upper piston and connected with the upper piston, the first flow channel is communicated with the second flow channel to form the piston flow channel, and the second flow channel is communicated with the hot nozzle flow channel.
3. The single-valve nozzle according to claim 2, wherein a connecting concave part is arranged at the joint of the upper piston and the piston rod, and the connecting end is limited and fixed through the connecting concave part.
4. The single valve nozzle of claim 2, wherein the piston rod is sealed to the upper piston by a first seal.
5. The single valve nozzle of claim 2, wherein at least one of said through holes is provided in said connecting tip, and said through hole is a kidney-shaped through hole.
6. The single valve of claim 5, wherein there are two of said kidney-shaped through holes, and two of said kidney-shaped through holes are centrally symmetric about the center of said connecting tip.
7. The single valve nozzle as defined in claim 2, wherein said upper piston includes a piston body and a connecting portion, said connecting portion is disposed on a side of said piston body away from said piston rod and connected to said piston body, a second sealing member is disposed on an outer wall of said connecting portion, and said connecting portion and said cylinder head flow passage are sealed by said second sealing member.
8. The single-valve nozzle according to claim 2 or 7, wherein a piston rod cavity is arranged in the cylinder body, the piston rod is arranged in the piston rod cavity, a third sealing element is sleeved outside the piston rod, and the piston rod cavity are sealed through the third sealing element.
9. The single valve nozzle of claim 1, further comprising a first quick connector for receiving air, said first quick connector being connected to said cylinder head and being in communication with a piston cavity location of said piston;
the single valve nozzle further comprises a second quick connector for air connection, and the second quick connector is connected with the cylinder body and communicated with the piston cavity of the piston.
10. The single-valve nozzle of claim 1, further comprising a water transport sleeve, the water transport sleeve being located outside the hot nozzle body for cooling the gum material in the hot nozzle flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552748.4U CN215242567U (en) | 2021-07-07 | 2021-07-07 | Single valve nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552748.4U CN215242567U (en) | 2021-07-07 | 2021-07-07 | Single valve nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215242567U true CN215242567U (en) | 2021-12-21 |
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ID=79490249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121552748.4U Active CN215242567U (en) | 2021-07-07 | 2021-07-07 | Single valve nozzle |
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| Country | Link |
|---|---|
| CN (1) | CN215242567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320098A (en) * | 2021-07-07 | 2021-08-31 | 广东柳道热流道系统有限公司 | Single valve nozzle |
-
2021
- 2021-07-07 CN CN202121552748.4U patent/CN215242567U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320098A (en) * | 2021-07-07 | 2021-08-31 | 广东柳道热流道系统有限公司 | Single valve nozzle |
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