CN218111614U - Injection molding machine mold pushing oil cylinder with pressurization locking function - Google Patents
Injection molding machine mold pushing oil cylinder with pressurization locking function Download PDFInfo
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- CN218111614U CN218111614U CN202222735350.5U CN202222735350U CN218111614U CN 218111614 U CN218111614 U CN 218111614U CN 202222735350 U CN202222735350 U CN 202222735350U CN 218111614 U CN218111614 U CN 218111614U
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Abstract
The utility model provides an injection molding machine mold-pushing oil cylinder with a pressurizing and locking function, which comprises a first cylinder barrel and a second cylinder barrel, wherein a main sliding plug is arranged in the first cylinder barrel in a sliding way, and a main sliding plug rod is arranged on the main sliding plug; a blocking seat is arranged between the first cylinder barrel and the second cylinder barrel, a central hole penetrates through two ends of the blocking seat to form an oil hole, and a first oil inlet hole is formed in the side wall of the blocking seat; and an auxiliary sliding plug is arranged in the second cylinder barrel in a sliding manner, an auxiliary sliding plug rod is arranged on the auxiliary sliding plug, when the auxiliary sliding plug moves towards the first sliding cavity, the auxiliary sliding plug rod can block the communication between the first oil inlet hole and the central hole and can pressurize the first sliding cavity, and the rod end of the first sliding cavity and the two ends of the second sliding cavity are both provided with oil inlet holes. The utility model discloses take injection molding machine of pressure boost locking function to push away the mould hydro-cylinder, compact structure, appearance are pleasing to the eye, have locking and pressure boost function, have improved mode locking power, mode locking stability and reliability greatly, simultaneously, have improved the safety in utilization, do not produce the load to oil pipe, and the security is high.
Description
Technical Field
The utility model relates to an injection molding machine hydro-cylinder, in particular to take injection molding machine of pressure boost locking function to push away the mould hydro-cylinder.
Background
An injection molding machine is also known as an injection molding machine or an injection machine, and is main molding equipment for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and is divided into a vertical type, a horizontal type and a full-electric type; the injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. An injection molding machine generally comprises an injection system, a mold closing system, a hydraulic transmission system, an electrical control system, a lubricating system, a heating and cooling system, a safety monitoring system and the like. The injection system is one of the most important components of an injection molding machine, and generally has 3 main forms of plunger type, screw type and screw pre-molding plunger injection type. The most widely used screw type plastic injection machine has the function of injecting molten plastic into a mold cavity through the screw at a certain pressure and speed after a certain amount of plastic is heated and plasticized within a specified time in one cycle of the plastic injection machine.
The mould pushing oil cylinder is used for pushing the movable mould to move, so that mould assembly is realized, injection molding is carried out, the inner cavity has higher pressure, reverse thrust is generated on the oil cylinder during injection molding, the pressure maintaining force of the oil cylinder depends on the oil pressure provided by the oil pump, namely, the oil pressure stability is influenced, when the oil pressure is unstable or is not pressurized, the pressing force of the mould is influenced, the product quality is further influenced, even safety accidents can be caused, and potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
【1】 Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide a simple structure is compact, can realize the oil pocket locking, can increase the injection molding machine of taking pressure boost locking function that inside oil pressure improved pressure simultaneously and push away the mould hydro-cylinder.
【2】 Means for solving the problems
A mold pushing oil cylinder with a pressurization locking function of an injection molding machine comprises a first cylinder barrel 4 and a second cylinder barrel 5 which are coaxially arranged, wherein a first sliding cavity 40 is formed in the first cylinder barrel 4, a main sliding plug 6 is arranged in the first sliding cavity 40 in a sliding mode, a main sliding plug rod 61 is arranged on the main sliding plug 6, and the end portion of the main sliding plug rod 61 extends out of the first sliding cavity 40 and serves as an output shaft; a blocking seat 2 is arranged between the first cylinder barrel 4 and the second cylinder barrel 5, a central hole 20 penetrates through two ends of the blocking seat 2 to form an oil hole, and a first oil inlet 201 communicated with the central hole 20 is formed in the side wall of the blocking seat 2; a second sliding cavity 50 is formed in the second cylinder 5, an auxiliary sliding plug 7 is slidably arranged in the second sliding cavity 50, an auxiliary sliding plug rod 71 coaxial with the central hole 20 is arranged on the auxiliary sliding plug 7, the end of the auxiliary sliding plug rod 71 extends into the central hole and blocks the communication between the first sliding cavity 40 and the second sliding cavity 50, when the auxiliary sliding plug 7 moves towards the first sliding cavity 40, the auxiliary sliding plug rod 71 can block the communication between the first oil inlet 201 and the central hole 20 and simultaneously pressurize the first sliding cavity 40, and a rod end of the first sliding cavity 40 and two ends of the second sliding cavity are both provided with oil inlets.
Further, the inner wall of the central hole 20 is provided with an annular oil groove 203, and the first oil inlet hole 201 is communicated with the annular oil groove 203.
Further, the axial width of the annular oil groove 203 is more than or equal to 1/6d and less than or equal to 1/3d, wherein d is the diameter of the auxiliary sliding plug rod 71.
Further, when the auxiliary sliding plug 7 is located at the outer limit position, the end surface of the auxiliary sliding plug rod 71 is flush with the side wall of the annular oil groove 203.
Further, an annular mounting groove for mounting a sealing ring is formed in the inner wall of the central hole 20, and the annular mounting groove is located between the outlet end of the first oil inlet 201 and the second sliding cavity 50.
Further, the diameter of the auxiliary sliding plug rod 71 is greater than or equal to 1/8D and less than or equal to 1/4D, wherein D is the aperture of the first sliding cavity 40.
Further, the movement stroke of the secondary sliding plug 7 is less than or equal to 1/25 of the length of the first sliding cavity 40.
Further, the inner diameters of the first spool chamber 40 and the second spool chamber 50 are the same.
Further, the end of the secondary sliding plug rod 71 is provided with a chamfer or a fillet.
【3】 Advantageous effects
The utility model discloses take injection molding machine push mold hydro-cylinder of pressure boost locking function sets up vice plug rod for carry out the pressure boost to first sliding cavity, improve mode locking power and mode locking stability, compensate the clearance; meanwhile, the oil hole is blocked, so that the safety is improved, high pressure on the oil pipe is avoided, and the service life of the oil pipe is prolonged; the annular oil groove is arranged, so that the oil inlet amount is increased, and the influence of the auxiliary sliding plug rod on the oil inlet area is reduced; in the initial state, the auxiliary sliding plug rod is aligned with the annular oil groove, so that the running stroke during locking is reduced, and the response speed is improved; the sliding cavities are coaxially arranged, so that the structure is compact, and the installation is convenient; the utility model discloses take injection molding machine of pressure boost locking function to push away the mould hydro-cylinder, compact structure, appearance are pleasing to the eye, have locking and pressure boost function, have improved mode locking power, mode locking stability and reliability greatly, simultaneously, have improved the safety in utilization, do not produce the load to oil pipe, and the security is high.
Drawings
Fig. 1 is a schematic structural view of a mold-pushing cylinder of an injection molding machine with a pressurizing and locking function according to the present invention;
FIG. 2 is a cross-sectional view of a mold-pushing cylinder of an injection molding machine with a pressurizing and locking function according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is another angle sectional view of the injection molding machine mold-pushing cylinder with pressurization locking function of the present invention;
fig. 5 is a schematic view of a locking state of the injection molding machine mold-pushing cylinder with a pressurizing and locking function according to the present invention;
fig. 6 is an enlarged view of a portion B in fig. 5.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 6, in the process of injection mold locking, a mold-pushing cylinder of an injection molding machine with a pressurizing and locking function can realize mechanical mold locking of the cylinder, and meanwhile, the internal pressure of the cylinder can be increased, the mold locking pressure and stability can be improved, and the gap can be compensated; specifically, the cylinder comprises a first cylinder barrel 4 and a second cylinder barrel 5 which are coaxially arranged, the first cylinder barrel 4 and the second cylinder barrel 5 are integrally cylindrical, a first sliding cavity 40 is formed in the first cylinder barrel 4, the cross section of the first sliding cavity 40 is circular, a main sliding plug 6 is slidably arranged in the first sliding cavity 40, a first cylinder cover 1 is fixed at the end part of the first cylinder barrel 4, an oil hole is formed in the first cylinder cover 1, a main sliding plug rod 61 is arranged on the main sliding plug 6, and the end part of the main sliding plug rod 61 extends out of the first sliding cavity 40 (the first cylinder cover 1) and forms an output shaft; a separation seat 2 is arranged between a first cylinder 4 and a second cylinder 5, a central hole 20 penetrates through two ends of the separation seat 2 to form an oil hole, the central hole is coaxial with a first sliding cavity 40, a first oil inlet hole 201 is arranged on the side wall of the separation seat 2, and the first oil inlet hole 201 is communicated with the central hole 20 (side wall) and is used for supplying oil to a rodless cavity of the first sliding cavity 40; in the present embodiment, the inner diameters of the first sliding cavity 40 and the second sliding cavity 50 are the same, the axial length of the second sliding cavity 50 is smaller than the axial length of the first sliding cavity 40, an auxiliary sliding plug 7 is slidably disposed in the second sliding cavity 50, an auxiliary sliding plug rod 71 is disposed on the auxiliary sliding plug 7, the auxiliary sliding plug rod 71 is disposed toward the first sliding cavity 40 and is disposed coaxially with the central hole 20, the end of the auxiliary sliding plug rod 71 extends to the central hole, so as to block the communication between the first sliding cavity 40 and the second sliding cavity 50, that is, the outer wall of the auxiliary sliding plug rod 71 is attached to the inner wall of the central hole, so as to prevent the hydraulic oil in the first sliding cavity 40 and the second sliding cavity 50 from communicating, in order to improve the sealing performance and the sealing capability, a sealing ring is disposed in the central hole 20, specifically, an annular mounting groove 201 is disposed in the inner wall of the central hole 20, and is located between the outlet end of the first sliding plug rod 71 and the second sliding cavity, when the first sliding plug rod moves toward the direction of the central hole, the first sliding plug rod 71 is inserted into the first sliding cavity, and the auxiliary sliding plug rod 71 is not connected to the central hole 20, when the first sliding plug rod 40, the first sliding plug rod 71, the auxiliary sliding cavity moves, the first sliding plug rod 71, the auxiliary sliding plug rod 71, the first sliding plug rod 71 does not move, and the second sliding cavity, and the second sliding plug rod 20, and the first sliding plug rod 20, and the second sliding cavity does not move effectively, and the second sliding plug rod 20, and the second sliding plug rod moves, and the second sliding cavity, and the sliding plug rod is not have no pressure-free of the first sliding plug rod 71, and the first sliding cavity 20, and the first sliding plug rod 71, and the sliding plug rod is not have no pressure-free sliding plug rod 71, and the sealing ring mounting groove 201, and the first sliding cavity 20; the end part of the second cylinder barrel 5 is provided with a second cylinder cover 3, oil holes are formed in the separation seat 2 and the second cylinder cover 3, and the separation seat and the second cylinder cover are used for driving an auxiliary sliding plug 7 in the second sliding cavity 50 to slide, so that the first sliding cavity is locked and pressurized.
In order to increase the oil inlet sectional area of the rodless cavity of the first sliding cavity and reduce the shielding generated by the auxiliary sliding plug rod, in the embodiment, an annular oil groove 203 is arranged on the inner wall of the central hole 20 of the first sliding cavity, and the first oil inlet hole 201 is communicated with the annular oil groove 203, see fig. 3. In this embodiment, the width (axial direction) of the annular oil groove 203 is greater than or equal to 1/6d and less than or equal to 1/3d, where d is the diameter of the auxiliary sliding plug rod 71, which prevents the oil inlet amount from being affected by too small width of the annular oil groove, or prevents the locking stroke of the auxiliary sliding plug rod from being caused by too large width of the annular oil groove, thereby improving the locking response speed.
In order to further increase the locking rate, in the present application, when the secondary sliding plug 7 is located at the outer limit (at the end far from the first sliding cavity), the end face of the secondary sliding plug 71 is flush with the side wall (at the side far from the first sliding cavity) of the annular oil groove 203.
In order to improve the supercharging efficiency and capacity and reduce the load on the second sliding chamber during supercharging, in the embodiment, the diameter of the auxiliary sliding plug rod 71 is greater than or equal to 1/8D and less than or equal to 1/4D, wherein D is the aperture (diameter) of the first sliding chamber 40; and the movement stroke of the auxiliary sliding plug 7 is less than or equal to 1/25 of the length of the first sliding cavity 40, and the end part of the auxiliary sliding plug 71 is provided with a chamfer or an oblique angle, so that on one hand, the contact between the acute angle of the end part and the inner wall of the central hole can be avoided, and meanwhile, the end surface area of the auxiliary sliding plug rod 71 is reduced, and further, the axial thrust generated by oil pressure on the auxiliary sliding plug rod during pressurization is reduced, namely, the load generated on the auxiliary sliding plug rod is reduced.
The utility model discloses a mould-pushing oil cylinder of an injection molding machine with a pressurizing and locking function is provided with an auxiliary sliding plug rod for pressurizing a first sliding cavity, improving the mould locking force and the mould locking stability and compensating the clearance; the oil hole is blocked, so that the safety is improved, high pressure on the oil pipe is avoided, and the service life of the oil pipe is prolonged; the annular oil groove is arranged, so that the oil inlet amount is increased, and the influence of the auxiliary sliding plug rod on the oil inlet area is reduced; in the initial state, the auxiliary sliding plug rod is aligned with the annular oil groove, so that the running stroke during locking is reduced, and the response speed is improved; the sliding cavities are coaxially arranged, so that the structure is compact, and the installation is convenient; the utility model discloses take injection molding machine of pressure boost locking function to push away the mould hydro-cylinder, compact structure, appearance are pleasing to the eye, have locking and pressure boost function, have improved mode locking power, mode locking stability and reliability greatly, simultaneously, have improved the safety in utilization, do not produce the load to oil pipe, and the security is high.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a take injection molding machine of pressure boost locking function to push away mould hydro-cylinder which characterized in that: the device comprises a first cylinder barrel and a second cylinder barrel which are coaxially arranged, wherein a first sliding cavity is formed in the first cylinder barrel, a main sliding plug is arranged in the first sliding cavity in a sliding mode, a main sliding plug rod is arranged on the main sliding plug, and the end part of the main sliding plug rod extends out of the first sliding cavity and serves as an output shaft; a blocking seat is arranged between the first cylinder barrel and the second cylinder barrel, a central hole penetrates through two ends of the blocking seat to form an oil hole, and a first oil inlet hole communicated with the central hole is formed in the side wall of the blocking seat; the shaping has the smooth chamber of second in the second cylinder section of thick bamboo, the smooth intracavity of second cunning is furnished with vice sliding plug, be equipped with on the vice sliding plug with the coaxial vice sliding plug pole of centre bore, the tip of vice sliding plug pole extends to in the centre bore and block first sliding chamber with the intercommunication in the smooth chamber of second, work as vice sliding plug to during the motion of first sliding chamber direction, vice sliding plug pole can block first inlet port with the intercommunication of centre bore, right simultaneously first sliding chamber forms the pressure boost, first sliding chamber have the rod end the both ends in the smooth chamber of second all are equipped with the inlet port.
2. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the inner wall of centre bore is equipped with annular oil groove, first inlet port intercommunication annular oil groove.
3. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 2, wherein: the axial width of the annular oil groove is more than or equal to 1/6d and less than or equal to 1/3d, wherein d is the diameter of the auxiliary sliding plug rod.
4. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 2, wherein: when the auxiliary sliding plug is positioned at the outer limit position, the end surface of the auxiliary sliding plug rod is flush with the side wall of the annular oil groove.
5. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the inner wall of the center hole is provided with an annular mounting groove for mounting a sealing ring, and the annular mounting groove is positioned between the outlet end of the first oil inlet and the second sliding cavity.
6. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the diameter of the auxiliary sliding plug rod is more than or equal to 1/8D and less than or equal to 1/4D, wherein D is the inner diameter of the first sliding cavity.
7. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the movement stroke of the auxiliary sliding plug is less than or equal to 1/25 of the length of the first sliding cavity.
8. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the inner diameters of the first sliding cavity and the second sliding cavity are the same.
9. The injection molding machine mold-pushing cylinder with a pressurizing and locking function as claimed in claim 1, wherein: the end of the auxiliary sliding plug rod is provided with a chamfer or a fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222735350.5U CN218111614U (en) | 2022-10-18 | 2022-10-18 | Injection molding machine mold pushing oil cylinder with pressurization locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222735350.5U CN218111614U (en) | 2022-10-18 | 2022-10-18 | Injection molding machine mold pushing oil cylinder with pressurization locking function |
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| Publication Number | Publication Date |
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| CN218111614U true CN218111614U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222735350.5U Active CN218111614U (en) | 2022-10-18 | 2022-10-18 | Injection molding machine mold pushing oil cylinder with pressurization locking function |
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| CN (1) | CN218111614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608177A (en) * | 2023-05-19 | 2023-08-18 | 宁波市鑫潮自动化元件有限公司 | Locking safety cylinder |
-
2022
- 2022-10-18 CN CN202222735350.5U patent/CN218111614U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116608177A (en) * | 2023-05-19 | 2023-08-18 | 宁波市鑫潮自动化元件有限公司 | Locking safety cylinder |
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