CN213797941U - Injection device of injection machine - Google Patents
Injection device of injection machine Download PDFInfo
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- CN213797941U CN213797941U CN202022514575.9U CN202022514575U CN213797941U CN 213797941 U CN213797941 U CN 213797941U CN 202022514575 U CN202022514575 U CN 202022514575U CN 213797941 U CN213797941 U CN 213797941U
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Abstract
The utility model discloses an injection device of injection machine, it include the injection seat, through the barrel seat install in the feed cylinder of injection seat, locate screw rod in the feed cylinder, drive the screw rod rotate and axial displacement's transmission shaft, with the transmission shaft through long tooth sliding fit order about transmission shaft synchronous revolution's transmission cover, drive the rotatory motor of transmission cover, fixed mounting in the injection cylinder of injection seat and having the cover form piston, the cover form piston drive the screw rod antedisplacement, the inner chamber of cover form piston and the inner chamber intercommunication of transmission cover, the inner chamber of transmission cover is through the oil tank bottom intercommunication of oil transfer way with the injection machine. The inner cavity of the transmission sleeve is communicated with the bottom of the oil tank through an oil conveying path, and oil flows out with abraded metal powder under positive pressure; clean oil is extracted during negative pressure and is supplemented to the inner cavity, automatic circulation updating of the oil is realized, the inner cavity is clean and free of impurities, oil in the inner cavity is kept full, lubricating performance is good, maintenance requirements are reduced, and the service life of parts can be prolonged.
Description
Technical Field
The utility model relates to an injection molding machine especially relates to an injection apparatus of injection machine.
Background
In the existing injection device, the transmission shaft and the transmission sleeve rotate synchronously and are axially and slidably connected with each other, and lubrication is needed between the connection parts to reduce abrasion in the process of gear shaping action. At present, the lubrication between a transmission shaft and a transmission sleeve is realized by arranging an oil cup outside to be communicated with the inner cavity of the transmission sleeve, so that lubricating oil in the oil cup can be supplemented into the transmission sleeve, and the lubricating oil needs to be maintained and supplemented regularly to compensate the loss of the lubricating oil in the use process. In addition, the metal parts are worn and dissolved in the lubricating oil during the transmission process, and only can be accumulated in the transmission parts and can not be discharged out of the machine parts. The accumulation of metal powder easily causes the problems of tooth breakage and the like of the latch, and directly influences the service life of equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the to-be-solved technical problem of the utility model is to provide an injection device of an injection machine which can reduce the maintenance requirement and prolong the service life of a machine part.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an injection device of an injection machine comprises an injection seat, a charging barrel arranged on the injection seat through a barrel seat, a screw rod arranged in the charging barrel, a transmission shaft driving the screw rod to rotate and move axially, a transmission sleeve driving the transmission shaft to rotate synchronously through sliding fit with the transmission shaft through long teeth, a motor driving the transmission sleeve to rotate, and an injection oil cylinder fixedly arranged on the injection seat and provided with a sleeve-shaped piston, wherein the sleeve-shaped piston drives the screw rod to move forwards, the inner cavity of the sleeve-shaped piston is communicated with the inner cavity of the transmission sleeve, and the inner cavity of the transmission sleeve is communicated with the bottom of an oil tank of the injection machine through an oil conveying path.
As an improvement of the technical scheme of the injection device of the injection machine of the utility model, be equipped with the spacer sleeve between shell-like piston and the transmission sleeve, spacer sleeve fixed connection is in the cylinder body tip of injection cylinder, the motor is connected in the tip of spacer sleeve.
As an improvement of the technical proposal of the injection device of the injection machine, the root of the transmission sleeve is connected with the spacing sleeve in a limiting way through a bearing.
As an improvement of the technical solution of the injection device of the injection machine of the present invention, the sleeve-shaped piston is connected to the connecting end of the transmission shaft through a bearing transmission.
As an improvement of the technical solution of the injection device of the injection machine of the present invention, the oil transportation path includes a communication pipeline to and from which the single tube comes and goes.
As an improvement of the technical solution of the injection device of the injection machine of the present invention, the oil delivery path includes a communication between the inner oil path of the inner chamber of the transmission sleeve, the oil suction path connected with the inner oil path and provided with the check valve, and the oil return path connected with the inner oil path and provided with the check valve.
As an improvement of the technical proposal of the injection device of the injection machine of the utility model, the bottom of the oil tank is provided with a strong magnet.
As an improvement of the technical scheme of the injection device of the injection machine of the present invention, a gap is provided between the tooth bottom and the tooth periphery between the transmission shaft and the transmission sleeve, and the root of the transmission sleeve is provided with a through hole.
The beneficial effects of the utility model reside in that: the inner cavity of the transmission sleeve is communicated with the bottom of the oil tank through an oil conveying path, and oil flows out of the oil tank with abraded metal powder under positive pressure to be filtered; clean oil in the oil tank is pumped to be supplemented to the inner cavity of the transmission sleeve and the inner cavity of the sleeve-shaped piston during negative pressure, so that the oil in the cavities is kept full and full, the lubricating performance is good, and the service life of machine parts can be prolonged. Through the process of negative pressure suction oil and positive pressure discharge oil, realize oil automatic cycle and update, can guarantee that the inner chamber is clean free from impurity, need not regularly to advance maintenance supplementary lubricating oil to the oil cup, reduce the maintenance requirement.
Drawings
Fig. 1 is a schematic elevation structure diagram of a first embodiment of an injection device of an injection machine according to the present invention.
Fig. 2 is a schematic partial structural view of a second injection device of an injection machine according to the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to an injection device of injection machine, it include injection seat 11, through the barrel seat 14 install in the feed cylinder 12 of injection seat 11, locate screw rod 13 in the feed cylinder, drive screw rod rotation and axial displacement's transmission shaft 15, with transmission shaft 15 orders about through long tooth sliding fit the synchronous rotatory driving sleeve 16 of transmission shaft, drive motor 19, the drive of driving sleeve 16 rotatory, fixed mounting in injection seat 11 and have the injection cylinder 21 of cover form piston 22, cover form piston 22 drive screw rod 13 antedisplacement, the inner chamber of cover form piston 22 with the inner chamber intercommunication of driving sleeve 16, the inner chamber of driving sleeve 16 is through oil delivery way and the oil tank 23 bottom intercommunication of injection machine. The transmission structure of the transmission sleeve 16 and the transmission shaft 15 axially slides and synchronously rotates, and the injection oil cylinder 21 can drive the transmission shaft 15 to move forwards to push the screw 13 to perform injection action, so that oil is required to infiltrate into the transmission parts and form a relatively closed inner cavity. When the transmission shaft moves back and forth, the sleeve-shaped piston 22 and the transmission shaft 15 move axially and synchronously, the transmission sleeve 16 stretches in the sleeve-shaped piston 22, and the transmission shaft 15 stretches in the transmission sleeve 16, so that the space between the inner cavity of the sleeve-shaped piston and the inner cavity of the transmission sleeve is changed. The inner cavity of the transmission sleeve 16 is communicated with the bottom of the oil tank 23 through an oil conveying path, and oil flows out to the oil tank 23 with abrasion metal powder under positive pressure to be filtered; clean oil in the oil tank 23 is pumped to be supplemented to the inner cavity of the transmission sleeve 16 and the inner cavity of the sleeve-shaped piston 22 during negative pressure, so that the oil in the cavities is kept full, the lubricating performance is good, and the service life of parts can be prolonged. Through the process of negative pressure suction oil and positive pressure discharge oil, realize oil automatic cycle and update, can guarantee that the inner chamber is clean free from impurity, need not regularly to advance maintenance supplementary lubricating oil to the oil cup, reduce the maintenance requirement. The oil is lubricating oil with lubricating effect, and can be oil in a hydraulic oil tank of an injection machine.
Wherein, a spacing sleeve 18 is arranged between the sleeve-shaped piston 22 and the transmission sleeve 16, the spacing sleeve 18 is fixedly connected with the end part of the cylinder body of the injection oil cylinder 21, and the motor 19 is connected with the end part of the spacing sleeve. The spacing sleeve 18 is fixedly arranged and used as an inner wall body of the injection oil cylinder 21, provides an installation space position for the transmission sleeve 16 and forms a space for containing oil. The motor is usually an oil motor (oil pressure motor), and a factory can usually provide abundant oil pressure resources.
Further, the root of the transmission sleeve 16 is in limit connection with the spacing sleeve 18 through a bearing, the spacing sleeve 18 is fixedly installed, and the transmission sleeve 16 is installed through the bearing so that the transmission sleeve 16 can be driven to rotate.
The connecting end of the sleeve-shaped piston 22 and the transmission shaft 15 is in transmission connection through a bearing, so that the sleeve-shaped piston 22 and the rotatable transmission shaft 15 can be axially synchronized and the rotation action of the transmission shaft 15 is not hindered.
The oil delivery way comprises a single-pipe communication pipeline 25 which is back and forth, the pipeline is provided with a small inner diameter so that the discharged oil can return to the oil tank 23 to be filtered, the phenomenon that the discharged oil stays in the pipeline and is sucked back repeatedly to lose the effect of circulating cleaning is prevented, and the effect of keeping the inner cavity clean and free of impurities is achieved. The inner cavity comprises a sleeve-shaped piston inner cavity and a transmission sleeve inner cavity.
In the second embodiment shown in fig. 2, the oil delivery path includes an internal oil path 26 communicating with the inner cavity of the transmission sleeve 16, an oil suction path 28 connected to the internal oil path 26 and provided with a check valve, and an oil return path 29 connected to the internal oil path and provided with a check valve. The oil in the inner cavity enters and exits through the inner oil path 26 and then is separately discharged from the oil return path 29, and clean oil is extracted from the oil suction path 28 and is supplemented into the inner cavity for lubrication, so that the oil effectively circulates, and the effect of keeping the inner cavity clean and free of impurities is achieved. The inner cavity comprises a sleeve-shaped piston inner cavity and a transmission sleeve inner cavity.
Furthermore, the bottom of the oil tank 23 is provided with a strong magnetic attraction 31, which can effectively adsorb the metal powder carried out by the oil from the friction parts to purify and filter the oil.
Preferably, a gap is provided between the transmission shaft 15 and the transmission sleeve 16 between the tooth bottom and the tooth peripheral surface, so that the inner cavity of the sleeve-shaped piston 22 and the inner cavity of the transmission sleeve 16 are communicated with each other. The root of the transmission sleeve 16 is provided with a through hole, so that the inner cavity of the transmission sleeve is convenient to be communicated with an external structure to form an oil way.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (8)
1. An injection unit for an injection machine, characterized by: the injection machine comprises an injection seat, a charging barrel arranged on the injection seat through a barrel seat, a screw rod arranged in the charging barrel, a transmission shaft driving the screw rod to rotate and axially move, a transmission sleeve driving the transmission shaft to synchronously rotate through sliding fit with the transmission shaft through long teeth, a motor driving the transmission sleeve to rotate, and an injection oil cylinder fixedly arranged on the injection seat and provided with a sleeve-shaped piston, wherein the sleeve-shaped piston drives the screw rod to move forwards, the inner cavity of the sleeve-shaped piston is communicated with the inner cavity of the transmission sleeve, and the inner cavity of the transmission sleeve is communicated with the bottom of an oil tank of the injection machine through an oil conveying path.
2. The injection unit of an injection machine according to claim 1, characterized in that: a spacer sleeve is arranged between the sleeve-shaped piston and the transmission sleeve, the spacer sleeve is fixedly connected to the end portion of the cylinder body of the injection oil cylinder, and the motor is connected to the end portion of the spacer sleeve.
3. The injection unit of an injection machine according to claim 2, characterized in that: the root of the transmission sleeve is in limit connection with the spacing sleeve through a bearing.
4. The injection unit of an injection machine according to claim 1, characterized in that: the sleeve-shaped piston is in transmission connection with the connecting end of the transmission shaft through a bearing.
5. The injection unit of an injection machine according to claim 1, characterized in that: the oil transportation path comprises a single-pipe communication pipeline which is communicated back and forth.
6. The injection unit of an injection machine according to claim 1, characterized in that: the oil delivery path comprises an inner oil path communicated with the inner cavity of the transmission sleeve, an oil suction path connected with the inner oil path and provided with a one-way valve, and an oil return path connected with the inner oil path and provided with a one-way valve.
7. The injection unit of an injection machine according to claim 1, characterized in that: the bottom of the oil tank is provided with a strong magnet.
8. The injection unit of an injection machine according to claim 1, characterized in that: a gap is arranged between the bottom of the tooth groove and the peripheral surface of the tooth between the transmission shaft and the transmission sleeve, and a through hole is arranged at the root of the transmission sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514575.9U CN213797941U (en) | 2020-11-03 | 2020-11-03 | Injection device of injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514575.9U CN213797941U (en) | 2020-11-03 | 2020-11-03 | Injection device of injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213797941U true CN213797941U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022514575.9U Active CN213797941U (en) | 2020-11-03 | 2020-11-03 | Injection device of injection machine |
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| Country | Link |
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| CN (1) | CN213797941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274479A (en) * | 2021-12-29 | 2022-04-05 | 张家港市纽迈机械有限公司 | Single-cylinder pre-plastic injection structure of injection blow molding machine |
| WO2022247223A1 (en) * | 2021-05-24 | 2022-12-01 | 西诺控股集团有限公司 | High-lubrication and low-wear injection molding machine single-cylinder injection mechanism and injection molding machine having structure |
-
2020
- 2020-11-03 CN CN202022514575.9U patent/CN213797941U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247223A1 (en) * | 2021-05-24 | 2022-12-01 | 西诺控股集团有限公司 | High-lubrication and low-wear injection molding machine single-cylinder injection mechanism and injection molding machine having structure |
| CN114274479A (en) * | 2021-12-29 | 2022-04-05 | 张家港市纽迈机械有限公司 | Single-cylinder pre-plastic injection structure of injection blow molding machine |
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