CN212194012U - Multi-head equal-wall-thickness screw pump stator glue injection device - Google Patents
Multi-head equal-wall-thickness screw pump stator glue injection device Download PDFInfo
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- CN212194012U CN212194012U CN202020740601.7U CN202020740601U CN212194012U CN 212194012 U CN212194012 U CN 212194012U CN 202020740601 U CN202020740601 U CN 202020740601U CN 212194012 U CN212194012 U CN 212194012U
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- external mold
- centre form
- sliding sleeve
- end cap
- injecting glue
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Abstract
The utility model provides a bull wall thickness screw pump stator injecting glue device such as, relates to screw rod oil recovery pump manufacturing technical field, including centre form, external mold, upper end cap and lower end cap, the centre form is installed in the external mold, and upper end cap and lower end cap pass through a screw gland respectively and connect the upper and lower both ends of external mold to from upper and lower both ends with the space shutoff between centre form and the external mold, the outside of centre form and the inboard of external mold are helical structure, are provided with the sliding sleeve between centre form and the external mold, the side of external mold lower extreme is provided with the injecting glue mouth, the side of external mold upper end is provided with. The utility model discloses a set up the sliding sleeve between external mold and centre form, make the downside of sliding sleeve keep the air-free state at the injecting glue in-process, restricted the injecting glue in-process and given birth to the free flow of rubber in the die cavity to make through the vacuum seal effect give birth to rubber and be full of the die cavity, thereby effectively avoided the appearance of gas pocket, guaranteed the quality of rubber sleeve.
Description
Technical Field
The utility model belongs to the technical field of the screw rod oil recovery pump is made, especially, relate to a wall thickness screw pump stator injecting glue device such as bull.
Background
In the field of petroleum engineering, a screw oil extraction pump is an important rod oil extraction device. The screw oil extraction pump mainly comprises a stator and a rotor, wherein the length of the stator and the length of the rotor are both more than six meters, the rotor is in a spiral structure, a rubber sleeve is arranged on the inner side of the stator, and a spiral through hole matched with the rotor is formed in the center of the rubber sleeve. When the screw oil extraction pump is produced, the rubber sleeve is manufactured in a mold forming mode, and air holes are easy to appear when glue is injected into the mold due to the fact that the length-diameter ratio of the rubber sleeve is large. In order to ensure the quality of the rubber sleeve and reduce the occurrence of air holes, the glue injection device needs to be improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that exists among the background art, the utility model provides a wall thickness screw pump stator injecting glue device such as bull.
The utility model provides a technical problem adopt following technical scheme to realize: the utility model provides a wall thickness screw pump stator injecting glue device such as bull, including centre form, external mold, go up end cap and lower end cap, the centre form is installed inside the external mold, goes up the end cap and connects the upper and lower both ends at the external mold through a screw gland respectively with lower end cap to from the upper and lower both ends with the space shutoff between centre form and the external mold, the outside of centre form and the inboard of external mold are helical structure, are provided with the sliding sleeve between centre form and the external mold, the inside and outside both sides of sliding sleeve match with the inboard helical structure in the centre form outside and the external mold respectively, the side of external mold lower extreme is provided with the injecting glue mouth, the inside and outside both sides of sliding sleeve are provided with a sealing washer.
As a further technical scheme, an overflow valve is installed on the pressure relief opening.
The utility model has the advantages that:
1. the utility model discloses a set up the sliding sleeve between external mold and centre form, make the downside of sliding sleeve keep the air-free state at the injecting glue in-process, restricted the injecting glue in-process and given birth to the free flow of rubber in the die cavity to make through the vacuum seal effect give birth to rubber and be full of the die cavity, thereby effectively avoided the appearance of gas pocket, guaranteed the quality of rubber sleeve.
2. The utility model discloses a set up the overflow valve on the pressure release mouth, can make the space of sliding sleeve top remain certain pressure throughout, during the injecting glue, this pressure can be conducted to the sliding sleeve downside through the sliding sleeve to force the raw rubber in the die cavity to flow, be favorable to improving the intensity after the rubber vulcanization like this.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-inner mold, 2-outer mold, 3-sliding sleeve, 4-sealing ring, 5-upper plug, 6-lower plug, 7-screw gland, 8-glue injection port, 9-pressure relief port and 10-overflow valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the present embodiment includes an inner mold 1, an outer mold 2, an upper plug 5 and a lower plug 6, the inner mold 1 is installed inside the outer mold 2, the upper plug 5 and the lower plug 6 are respectively connected to the upper end and the lower end of the outer mold 2 through a screw gland 7, so as to plug the space between the inner mold 1 and the outer mold 2 from the upper end and the lower end, and both the outer side of the inner mold 1 and the inner side of the outer mold 2 are in a spiral structure. The above is a conventional structure in the prior art, and is not described in detail herein.
The utility model discloses an innovation point lies in: be provided with sliding sleeve 3 between centre form 1 and the external mold 2, the inside and outside both sides of sliding sleeve 3 match with the 1 outside of centre form and the inboard heliciform of external mold 2 respectively, the side of external mold 2 lower extreme is provided with injecting glue mouth 8, the inside and outside both sides of sliding sleeve 3 are provided with a sealing washer 4 respectively, the side of external mold 2 upper end is provided with pressure release mouth 9.
Through set up sliding sleeve 3 between external mold 2 and centre form 1, make sliding sleeve 3's downside space keep the air-free state at the injecting glue in-process, restricted the free flow of injecting glue in-process living rubber in the die cavity to make living rubber be full of the die cavity through the vacuum seal effect, thereby effectively avoided the appearance of gas pocket, guaranteed the quality of rubber sleeve.
It should be noted that the lead of the spiral on the outer side of the inner mold 1 and the lead of the spiral on the inner side of the outer mold 2 must be the same to ensure that the sliding sleeve 3 can slide smoothly in the space between the inner mold 1 and the outer mold 2.
An overflow valve 10 is arranged on the pressure relief opening 9. Through set up overflow valve 10 on pressure release port 9, can make the space of 3 tops of sliding sleeve remain certain pressure throughout, during the injecting glue, this pressure can be conducted to 3 downside of sliding sleeve through sliding sleeve 3 to force the raw rubber of die cavity to flow, be favorable to improving the intensity after the rubber vulcanization like this.
During specific implementation, the upper end of the inner die 1 can be fixed on the upper plug 5 through a threaded fastener, and the lower end of the inner die 1 can be positioned on the lower plug 6 through a positioning groove. In addition, before the glue injection process begins, the sliding sleeve 3 is located at the position shown in fig. 1, at this time, in order to discharge air between the sliding sleeve 3 and the lower plug 6, the lower plug 6 can be firstly detached, raw rubber is manually filled into the space below the sliding sleeve 3, the lower plug 6 is installed back after the raw rubber is filled, and glue is injected through the glue injection opening 8.
Claims (2)
1. The utility model provides a bull wall thickness screw pump stator injecting glue device such as, includes centre form (1), external mold (2), goes up end cap (5) and lower end cap (6), centre form (1) is installed inside external mold (2), goes up end cap (5) and connects the upper and lower both ends in external mold (2) through a screw gland (7) respectively with lower end cap (6), thereby from the space shutoff between upper and lower both ends with centre form (1) and external mold (2), the outside of centre form (1) and the inboard of external mold (2) are heliciform structure, its characterized in that: be provided with sliding sleeve (3) between centre form (1) and external mold (2), the inside and outside both sides of sliding sleeve (3) match with the spiral structure in centre form (1) outside and external mold (2) inboard respectively, the side of external mold (2) lower extreme is provided with injecting glue mouth (8), the inside and outside both sides of sliding sleeve (3) are provided with one sealing washer (4) respectively, the side of external mold (2) upper end is provided with pressure release mouth (9).
2. The multi-head equal-wall-thickness screw pump stator glue injection device according to claim 1, characterized in that: an overflow valve (10) is arranged on the pressure relief opening (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020740601.7U CN212194012U (en) | 2020-05-08 | 2020-05-08 | Multi-head equal-wall-thickness screw pump stator glue injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020740601.7U CN212194012U (en) | 2020-05-08 | 2020-05-08 | Multi-head equal-wall-thickness screw pump stator glue injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212194012U true CN212194012U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020740601.7U Active CN212194012U (en) | 2020-05-08 | 2020-05-08 | Multi-head equal-wall-thickness screw pump stator glue injection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212194012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434460A (en) * | 2022-02-16 | 2022-05-06 | 佛山华胜伟业精密模具有限公司 | Flexible finger structure and manufacturing method thereof |
-
2020
- 2020-05-08 CN CN202020740601.7U patent/CN212194012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434460A (en) * | 2022-02-16 | 2022-05-06 | 佛山华胜伟业精密模具有限公司 | Flexible finger structure and manufacturing method thereof |
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