CN203371750U - Injecting cylinder of injection molding machine - Google Patents
Injecting cylinder of injection molding machine Download PDFInfo
- Publication number
- CN203371750U CN203371750U CN201320411294.8U CN201320411294U CN203371750U CN 203371750 U CN203371750 U CN 203371750U CN 201320411294 U CN201320411294 U CN 201320411294U CN 203371750 U CN203371750 U CN 203371750U
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- Prior art keywords
- injection
- cylinder
- injecting
- spline
- transmission shaft
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- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an injecting cylinder of an injection molding machine. The injecting cylinder comprises an injecting seat, a glue smelting motor, an injecting cylinder body, an injecting piston which is arranged in the injecting cylinder body in a sliding manner, and a front cylinder cover a rear cylinder cover which are hermetically fixed at the front and back of the injecting cylinder body, and the injecting cylinder is characterized by further comprising a transmission shaft and a spline shaft, wherein one end of the transmission shaft is connected with the glue smelting motor and is rotatably arranged on the rear cylinder cover, and the spline shaft is coaxially fixed and connected with the other end of the transmission shaft; a counter bore which is suitable for a spline sleeve to locate is formed in the end face of the injecting piston arranged in the injecting cylinder body; a blind hole which is in clearance fit with the spline shaft is formed in the bottom surface of the counter bore; the spline sleeve and the spline shaft form a rolling spline pair. In the injecting cylinder of the injection molding machine, as the rolling spline pair structure is arranged between a rotating shaft and the injecting cylinder body, scrap irons generated in the compound motion of the injecting piston are effectively prevented from entering a hydraulic system, and consequently, the service life of the injecting cylinder is prolonged.
Description
Technical field
The utility model belongs to the injection-moulding plastic equipment technical field, relates in particular to a kind of injection machine injection cylinder.
Background technology
Existing single cylinder injection injection machine carries out in injection moulding plastics, needs the injection cylinder of injection machine to drive the screw rod rotation and carries and plastify ejection formation after plastics, needs the interior injection ram of injection cylinder to realize hybrid motion, along endwisely slipping and rotating.Wherein rotatablely moving of the relative injection cylinder of injection ram driven to realize by colloidal sol motor or oil motor, makes again the relative power transmission shaft moving linearly of injection ram under the effect of hydraulic system, and such rectilinear motion is generally the slip form simultaneously.Easily produce like this iron filings and enter hydraulic system under the sliding friction effect, affect service life.And reduce the generation of iron filings by the machining accuracy that improves the axis hole assembly, increased processing cost.
The Chinese utility model that the existing patent No. is CN200820035616.2 discloses a kind of ejaculation rotating mechanism, comprise: cylinder sleeve, be inserted in slidably the gear shaft that the output shaft of the injection piston in cylinder sleeve, reinforced motor, an end and reinforced motor is in transmission connection mutually, be provided with rotationally rotary sleeve in the injection piston, one end and the gear shaft same axis of rotary sleeve are rotationally connected, and the other end of rotary sleeve coaxially is fixedly connected with rotary screw.Although the rotary sleeve of this utility model is embedded in the injection piston by bearing, make rotary sleeve injection piston rotation relatively, but the gear shaft other end is connected with rotary sleeve, the substantive distinguishing features of its structure just will in original technology peel a layer from rotating shaft sleeve core as axle sleeve.And rotary sleeve can slide by similar spline structure on gear shaft.Because the slip effect easily produces iron filings, and easily enter in the hydraulic oil of injection cylinder, thereby affected the quality of hydraulic oil, shortened the service life of system.
The utility model content
The technical problems to be solved in the utility model is the present situation for prior art, provides the fricative iron filings of a kind of minimizing to enter hydraulic system, guarantees the injection machine injection cylinder of cleanliness of hydraulic oil.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of injection machine injection cylinder, the injection ram, the sealing that comprise injection seat, melten gel motor, injection cylinder, be slidably arranged in this injection cylinder are fixed on front end housing and back cylinder cover before and after described injection cylinder, it is characterized in that: also comprising that an end is connected with this melten gel motor to rotate is arranged on the power transmission shaft in described back cylinder cover, the splined shaft coaxially be fixedly linked with this power transmission shaft other end; Be arranged on the end face of the described injection ram in described injection cylinder and have and be applicable to the counterbore that spline housing is located in, this counterbore bottom surface has the blind hole with described splined shaft matched in clearance, described spline housing and described splined shaft formation rolling spline pair.
As improvement, have logical hydraulic fluid port near described front end housing on described injection cylinder, have the logical hydraulic fluid port communicated with described injection cylinder inner chamber on described back cylinder cover; Described front end housing arranged outside have with it, be fixedly linked and with the front guide pin bushing that described injection ram is sealed and matched, at described injection ram external diameter cover, seal is arranged between this front guide pin bushing and front end housing; Described back cylinder cover arranged outside has the sealing ring gland be fixedly linked with it, between sealing circle gland and back cylinder cover, at described power transmission shaft external diameter cover, seal is arranged; Described sealing ring gland arranged outside has the power transmission shaft gland.Two logical hydraulic fluid ports can effectively guarantee oil-feed and the oil return of injection cylinder, promote the slip in injection cylinder of injection ram.Further improved the guidance quality of injection ram by being provided with leading cover; Between front guide pin bushing and front end housing and sealing ring is being set between sealing ring gland and back cylinder cover and is realizing sealing by the clamping between by two, can guarantee that the oil in injection cylinder does not leak outside on the one hand, can prevent that on the other hand sealing ring is driven to rotate.The turning cylinder gland can be effectively to turning cylinder realize endwisely slipping carry out spacing.
Improve, in the described injection ram end of described injection cylinder outside, radially be provided with bearing, the external diameter of this bearing is provided with stroke indication seat, and the trip indication seat is slidably arranged on the indication seat guide rod on described injection seat.By the end at injection ram, stroke indication seat is set, when playing the support injection ram, can also refer to illustrate the axial location of injection cylinder.
Compared with prior art, owing to the utility model has the advantage of: by the rolling spline auxiliary structure is set between turning cylinder and injection cylinder, with common spline pair, compare, sliding friction when injection ram generation compound motion is transformed into rolling friction, thereby effectively avoided entering in hydraulic system due to the iron filings that sliding friction produces, guaranteed the clean of hydraulic oil, the service life of having improved injection cylinder.
The accompanying drawing explanation
Fig. 1 is the structural representation of injection machine injection cylinder in the utility model embodiment.
Wherein: the 1-guide bar receiver, the 2-injection seat, 3-injects guide rod, 4-indication seat guide rod, the 5-deep groove ball bearing, 6-stroke indication seat, 7-injection ram, guide pin bushing before 8-, 9-seal A, 10-front end housing, 11-spline housing, 12-splined shaft, the 13-injection cylinder, 14-back cylinder cover, 15-power transmission shaft, 16-seal B, 17-sealing ring gland, 18-preformed motor base, 19-power transmission shaft gland, 20-melten gel motor, 21-injection ram counterbore, 22-injection ram blind hole.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1, this injection machine injection cylinder comprises injection seat 2, melten gel motor 20, injection cylinder 13, injection ram 7, front end housing 10, the back cylinder cover 14 be arranged on guide bar receiver 1, power transmission shaft 15, splined shaft 12 and spline housing 11 etc.
As shown in Figure 1, this injection machine injection cylinder comprises the injection seat 2, melten gel motor 20, the injection cylinder 13 that are arranged on guide bar receiver 1, is slidably arranged in the injection ram 7 in this injection cylinder 13, front end housing 10 and the back cylinder cover 14 that sealing is fixed on injection cylinder 13 front and back, one end is connected with melten gel motor 20 and rotates the power transmission shaft 15 be arranged on back cylinder cover 14, by the key splined shaft 12 coaxial with this power transmission shaft 15 other ends that be in transmission connection.
Have on the end face of the injection ram 7 in injection cylinder 13 and be applicable to the counterbore that spline housing 11 is located in, this counterbore bottom surface has the blind hole with splined shaft 12 matched in clearance, in spline housing 11, is provided with steel ball, and spline housing 11 forms rolling spline pair with splined shaft 12.
Lead to hydraulic fluid port A, the logical hydraulic fluid port B communicated with injection cylinder 13 inner chambers at injection cylinder 13 near having on front end housing 10 on back cylinder cover 14.In front end housing 10 outsides, be connected with the front guide pin bushing 8 be sealed and matched with injection ram 7 by flange, at injection ram 7 external diameter covers, seal A9 is arranged between this front guide pin bushing 8 and front end housing 10, seal A9 can carry out pretension by the flange of tightening on front guide pin bushing 8; Be connected with sealing ring gland 17 at the back cylinder cover 14 same flanges in the outside, between sealing circle gland 17 and back cylinder cover 14, at power transmission shaft 15 external diameter covers, seal B16 arranged, seal B16 can carry out pretension by the flange of tightening on sealing ring gland 17.Be connected with power transmission shaft gland 19 at sealing ring gland 17 outer face flanges, power transmission shaft gland 19 and power transmission shaft 15 matched in clearance, can be used for arranging the axial location of power transmission shaft 15.Be provided with preformed motor base 18 in the outer face of seal gland 19, melten gel motor 20 is fixed on this preformed motor base 18 simultaneously.
End at the injection ram 7 of injection cylinder 13 outsides radially is fixed with deep groove ball bearing 5, is provided with stroke indication seat 6 at the external diameter of deep groove ball bearing 5, on the trip indication seat 6 indication seat guide rods 4 that are slidably arranged on described injection seat.
The operation principle of this injection machine injection cylinder is as follows:
When the logical hydraulic fluid port oil-feed of A, B leads to the hydraulic fluid port oil return, and injection ram 7 is done action of injection; When the logical hydraulic fluid port oil-feed of B, A leads to the hydraulic fluid port oil return, and injection ram 7 is done and penetrated the deactuate work.
Produce and rotatablely move under the effect of melten gel motor 20 at hydraulic oil, through power transmission shaft 15, splined shaft 12, spline housing 11, pass to injection ram 7, injection ram 7 drives the screw rod rotation and does the colloidal sol action.Owing in spline housing 11, being provided with steel ball, spline housing 11 forms rolling spline pair with splined shaft 12, so splined shaft 12 also makes it that axial displacement occurs when by rolling spline, overlapping 11 drive injection ram 7 rotation in rotation.
Claims (3)
1. an injection machine injection cylinder, the injection ram (7), the sealing that comprise injection seat (2), melten gel motor (20), injection cylinder (13), be slidably arranged in this injection cylinder (13) are fixed on front end housing (10) and back cylinder cover (14) before and after described injection cylinder (13), it is characterized in that: also comprising that an end is connected with this melten gel motor (20) rotates the power transmission shaft (15) be arranged in described back cylinder cover (14), the splined shaft (12) coaxially be fixedly linked with this power transmission shaft (15) other end; Be arranged on the end face of the described injection ram (7) in described injection cylinder (13) and have the fixing counterbore (21) of applicable spline housing (11), this counterbore bottom surface has the blind hole (22) with described splined shaft (12) matched in clearance, and described spline housing (11) forms rolling spline pair with described splined shaft (12).
2. injection machine injection cylinder according to claim 1, it is characterized in that: have logical hydraulic fluid port at the upper close described front end housing (10) of described injection cylinder (13), have the logical hydraulic fluid port communicated with described injection cylinder (13) inner chamber on described back cylinder cover (14); Described front end housing (10) arranged outside have with it, be fixedly linked and with the front guide pin bushing (8) that described injection ram (7) is sealed and matched, at described injection ram (7) external diameter cover, seal is arranged between this front guide pin bushing (8) and front end housing (10); Described back cylinder cover (14) arranged outside has the sealing ring gland (17) be fixedly linked with it, between sealing circle gland (17) and back cylinder cover (14), at described power transmission shaft (15) external diameter cover, seal is arranged; Described sealing ring gland (17) arranged outside has power transmission shaft gland (19).
3. injection machine injection cylinder according to claim 1, it is characterized in that: described injection ram (7) end outside at described injection cylinder (13) radially is provided with bearing (5), the external diameter of this bearing (5) is provided with stroke indication seat (6), and the trip indication seat (6) is slidably arranged on the indication seat guide rod (4) on described injection seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411294.8U CN203371750U (en) | 2013-07-10 | 2013-07-10 | Injecting cylinder of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320411294.8U CN203371750U (en) | 2013-07-10 | 2013-07-10 | Injecting cylinder of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203371750U true CN203371750U (en) | 2014-01-01 |
Family
ID=49834301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320411294.8U Expired - Fee Related CN203371750U (en) | 2013-07-10 | 2013-07-10 | Injecting cylinder of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203371750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756744A (en) * | 2016-08-22 | 2018-03-06 | 上海光塑机械制造有限公司 | A kind of motor fixes single cylinder injection mechanism |
-
2013
- 2013-07-10 CN CN201320411294.8U patent/CN203371750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756744A (en) * | 2016-08-22 | 2018-03-06 | 上海光塑机械制造有限公司 | A kind of motor fixes single cylinder injection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 315043, No. 4, No. 9-6, Dongfang business center, 456 Xingning Road, Jiangdong District, Zhejiang, Ningbo, 26 Patentee after: Ningbo Haixiong Plastic Machinery Co., Ltd. Address before: 315806 Zhejiang Province, Ningbo city Beilun District Yongjiang Road No. 36 Patentee before: Ningbo Haixiong Plastic Machinery Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 315806 Zhejiang city of Ningbo province Beilun Daqi Yongjiang Road No. 36 building 6, No. 1 Patentee after: Ningbo Haixiong Plastic Machinery Co., Ltd. Address before: 315043, No. 4, No. 9-6, Dongfang business center, 456 Xingning Road, Jiangdong District, Zhejiang, Ningbo, 26 Patentee before: Ningbo Haixiong Plastic Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20210710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |