CN111590838A - Injection reducing cylinder of injection molding machine - Google Patents
Injection reducing cylinder of injection molding machine Download PDFInfo
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- CN111590838A CN111590838A CN202010297869.2A CN202010297869A CN111590838A CN 111590838 A CN111590838 A CN 111590838A CN 202010297869 A CN202010297869 A CN 202010297869A CN 111590838 A CN111590838 A CN 111590838A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
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- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an injection reducing cylinder of an injection molding machine, which comprises a reducing injection single cylinder and a reducing injection double cylinder, wherein the reducing injection single cylinder is arranged on a single cylinder injection table of the injection molding machine, the reducing injection double cylinder is arranged on a double cylinder injection table of the injection molding machine, the reducing injection single cylinder and the reducing injection double cylinder are both provided with reducing rods, and the outer diameter of each reducing rod is 15-40 mm smaller than the inner diameter of an oil cylinder. The invention has the advantages that the oil cylinder can be controlled by electric hydraulic pressure, and really has a practical reducing function; the sizing cylinder with one fixed cylinder diameter injected by the existing injection molding machine can be changed into a variable diameter cylinder with two selectable cylinder diameters and really has a practical function; the reducing injection cylinder includes single cylinder and double cylinder injection cylinder of available injection molding machine. The reducing cylinder has the reducing rod and the outer diameter is 15-40 mm smaller than the inner diameter of the oil cylinder, and the reducing cylinder for injection molding machine has the unique features, so that the optimal combination of pressure and speed of two kinds of injection oil cylinders and energy saving effect may be selected during producing different products.
Description
Technical Field
The invention belongs to the technical field of injection molding machines, and particularly relates to a reducing cylinder of an injection molding machine.
Background
The reducing cylinder is an oil cylinder whose cylinder diameter can be controlled by hydraulic pressure and electric energy. As are variable pump variables. The sizing cylinder of the prior toggle rod type injection molding machine does not have two distinguishing characteristics: firstly, the reducing cylinder must have a reducing rod, and the outside diameter of the reducing cylinder is 15-40 mm smaller than the inside diameter of the oil cylinder, and secondly, the oil cylinder can really have a practical reducing function through electro-hydraulic control.
The injection oil cylinder of the existing injection molding machine does not have two major characteristics of a reducing cylinder. The injection cylinder of the existing injection molding machine is of a seemingly structure, but is completely different from the reducing cylinder in nature, not only completely occupies the edge of the reducing cylinder in function, but also is structurally too small in inner diameter of a piston rod compared with an oil cylinder, and far away from the outer diameter range of a reducing rod of the reducing cylinder: the outer diameter of the reducing rod (middle cylinder diameter) must be smaller than the range of 15-40 mm of the inner diameter of the large cylinder, if the outer diameter of the reducing rod is smaller than the range, the reducing rod is the piston rod of the sizing cylinder and is not the reducing cylinder with practical function, and the piston rod of the existing injection cylinder is far smaller than the range of 15-40 mm of the inner diameter of the oil cylinder and is not in accordance with the standard of the reducing cylinder, so that the existing sizing cylinder injection molding machine does not have the function of producing different products at all, can flexibly select two cylinder diameters, and cannot realize the optimal combination of the pressure and the speed of the oil cylinder and the energy-saving effect.
Disclosure of Invention
The invention aims to provide an injection reducing cylinder of an injection molding machine, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an injection reducing cylinder of injection molding machine which the structural feature lies in: the single-cylinder injection molding machine comprises a single-cylinder injection variable-diameter cylinder and double-cylinders injection variable-diameter cylinders, wherein the single-cylinder injection variable-diameter cylinder is arranged on a single-cylinder injection table of the injection molding machine, the double-cylinder injection variable-diameter cylinder is arranged on a double-cylinder injection table of the injection molding machine, the single-cylinder injection variable-diameter cylinder and the double-cylinder injection variable-diameter cylinder are both provided with variable-diameter rods, and the outer.
Preferably, the reducing injection single cylinder comprises a single cylinder injection cylinder body, a single cylinder reducing rod, a single cylinder injection piston, a single cylinder injection cylinder front cover, a single cylinder injection cylinder rear cover, a single cylinder large cylinder, a single cylinder reducing cavity, a single cylinder long bolt, a single cylinder bolt nut, a single cylinder injection platform tail plate, a single cylinder thrust plate, a single cylinder injection platform movable plate, a single cylinder screw, a single cylinder charging barrel, a single cylinder injection platform head plate, a single cylinder injection valve and a single cylinder reducing valve, wherein the single cylinder injection cylinder front cover and the single cylinder injection cylinder rear cover are respectively arranged at the front end and the rear end of the single cylinder injection cylinder body, the single cylinder injection cylinder front cover and the single cylinder injection cylinder rear cover are connected through the single cylinder long bolt, the single cylinder bolt nut is assembled on the single cylinder injection cylinder long bolt, the single cylinder reducing rod is arranged in the single cylinder injection cylinder body, one end of the single cylinder reducing rod, which is close to the single cylinder injection cylinder rear cover, one side that is close to single cylinder injection cylinder back cover is the single cylinder vat, single cylinder reducing rod is fixed on the single cylinder piston, the front end of single cylinder injection cylinder protecgulum has connected gradually the single cylinder and has penetrated the platform tailboard, single cylinder thrust plate and single cylinder penetrate the platform movable plate, wherein the single cylinder penetrates the platform tailboard and locates the one side that is close to single cylinder injection cylinder protecgulum, and the single cylinder penetrates the front end of platform movable plate and is equipped with the single cylinder screw rod, the place ahead that the platform movable plate was penetrated to the single cylinder is equipped with the single cylinder and penetrates the platform head board, and be equipped with the single cylinder feed cylinder with single cylinder screw rod adaptation on the single cylinder injection platform headboard, single cylinder injection valve and single cylinder reducing valve are connected, and the.
Preferably, the reducing injection double cylinder comprises a double-cylinder injection cylinder body, a double-cylinder reducing rod, a double-cylinder injection piston, a double-cylinder injection cylinder front cover, a double-cylinder injection cylinder rear cover, a double-cylinder large cylinder, a double-cylinder reducing cavity, a double-cylinder injection piston rod, a double-cylinder cover bolt, a double-cylinder injection platform two plate, a double-cylinder thrust shaft, a double-cylinder melt adhesive motor, a double-cylinder screw, a double-cylinder charging barrel, a double-cylinder injection platform head plate, a double-cylinder injection valve and a double-cylinder reducing valve, wherein the double-cylinder injection cylinder body is provided with the double-cylinder injection cylinder front cover and the double-cylinder injection cylinder rear cover at the front end and the rear end respectively, the double-cylinder injection cylinder front cover and the double-cylinder injection cylinder rear cover are connected with the double-cylinder injection cylinder body through the double-cylinder cover bolt, the double-cylinder reducing rod and the double-cylinder injection piston rod are coaxially, the double-cylinder injection piston rod is arranged at one side close to the rear cover of the double-cylinder injection cylinder, the double-cylinder injection piston rod is sleeved at the outer side of one end of the double-cylinder reducing rod close to the double-cylinder injection piston rod, the side, close to the front cover of the double-cylinder injection cylinder, of the double-cylinder injection piston rod in the double-cylinder injection cylinder is a double-cylinder reducing cavity, the side, close to the rear cover of the double-cylinder injection cylinder is a double-cylinder large cylinder, the two double-cylinder reducing rods are respectively fixed at one end of the two double-cylinder injection piston rods, the double-cylinder glue melting motor is connected with a double-cylinder thrust shaft, the front end of the double-cylinder thrust shaft is connected with a double-cylinder screw rod, the outer side of the double-cylinder thrust shaft is provided with a double-cylinder injection platform two plate, the two sides of the double-cylinder injection platform two plate, the double-cylinder injection valve is connected with the double-cylinder big cylinder, and the double-cylinder reducing valve is connected with the double-cylinder reducing cavity.
Preferably, the single-cylinder injection valve is 03-3C12 in model, the single-cylinder reducing valve is 03-2B10B in model, and the difference between the outer diameter of the single-cylinder reducing rod and the inner diameter of the single-cylinder injection cylinder body is 15-40 mm.
Preferably, the model of the double-cylinder injection valve is 03-3C12, the model of the double-cylinder reducing valve is 03-2B10B, and the difference between the outer diameter of the double-cylinder reducing rod and the inner diameter of the double-cylinder injection cylinder body is 15-40 mm.
Compared with the prior art, the invention has the beneficial effects that:
the oil cylinder can be controlled through electric hydraulic pressure and really has a practical diameter-changing function;
secondly, a sizing cylinder with a fixed cylinder diameter injected by the existing injection molding machine can be changed into a variable diameter cylinder with two selectable cylinder diameters and a practical function;
and thirdly, the reducing injection cylinder comprises a single-cylinder injection cylinder and a double-cylinder injection cylinder of the existing injection molding machine.
The diameter-variable cylinder must be provided with a diameter-variable rod, the outer diameter of the diameter-variable rod is 15-40 mm smaller than the inner diameter of the oil cylinder, and the diameter-variable range is a distinguishing standard for distinguishing the sizing cylinder and the diameter-variable cylinder of the existing injection molding machine. Because the reducing cylinder of the injection molding machine has the unique characteristics, two kinds of optimal combinations of injection, oil cylinder pressure and speed and energy-saving effect can be selected when different products are produced.
Drawings
FIG. 1 is a perspective view of a variable diameter injection single cylinder of the present invention;
FIG. 2 is a schematic structural diagram of a variable diameter injection double cylinder according to the present invention;
FIG. 3 is a cross-sectional view of a single cylinder for reducing injection in accordance with the present invention;
FIG. 4 is a hydraulic schematic diagram of a variable diameter injection single cylinder of the present invention;
FIG. 5 is a schematic structural view of a variable diameter injection double cylinder according to the present invention;
FIG. 6 is a hydraulic schematic diagram of a variable diameter injection dual cylinder of the present invention;
in the figure: 1-single cylinder injection platform, 2-double cylinder injection platform, 11-reducing injection single cylinder, 21-reducing injection double cylinder, 1101-single cylinder injection cylinder body, 1102-single cylinder reducing rod, 1103-single cylinder injection piston, 1104-single cylinder injection cylinder front cover, 1105-single cylinder injection cylinder rear cover, 1106-single cylinder big cylinder, 1107-single cylinder reducing cavity, 1108-single cylinder oil cylinder long bolt, 1109-single cylinder bolt nut, 1110-single cylinder injection platform tail plate, 1111-single cylinder thrust plate, 1112-single cylinder injection platform movable plate, 1113-single cylinder screw, 1114-single cylinder double cylinder barrel, 1115-single cylinder injection platform head plate, 1116-single cylinder injection valve, 1117-reducing single cylinder valve, 2101-double cylinder injection cylinder body, 2102-double cylinder reducing rod, 2103-injection piston, 2104-double cylinder injection cylinder front cover, 2105-double-cylinder injection cylinder rear cover, 2106-double-cylinder large cylinder, 2107-double-cylinder variable diameter cavity, 2108-double-cylinder injection piston rod, 2109-double-cylinder cover bolt, 2110-double-cylinder injection platform double plate, 2111-double-cylinder thrust shaft, 2112-double-cylinder melt adhesive motor, 2113-double-cylinder screw, 2114-double-cylinder charging barrel, 2115-double-cylinder injection platform head plate, 2116-double-cylinder injection valve and 2117-double-cylinder variable diameter valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-6, the invention provides a technical scheme that the reducing injection cylinder of the injection molding machine comprises a reducing injection single cylinder and a reducing injection double cylinder, wherein the reducing injection single cylinder is arranged on a single cylinder injection table of the injection molding machine, the reducing injection double cylinder is arranged on a double cylinder injection table of the injection molding machine, the reducing injection single cylinder and the reducing injection double cylinder are both provided with reducing rods, and the outer diameter of each reducing rod is 15-40 mm smaller than the inner diameter of each oil cylinder.
Wherein, in this embodiment, the variable diameter injection single cylinder 11 includes a single cylinder injection cylinder 1101, a single cylinder variable diameter rod 1102, a single cylinder injection piston 1103, a single cylinder injection cylinder front cover 1104, a single cylinder injection cylinder rear cover 1105, a single cylinder large cylinder 1106, a single cylinder variable diameter cavity 1107, a single cylinder long bolt 1108, a single cylinder bolt nut 1109, a single cylinder injection platform tail plate 1110, a single cylinder thrust plate 1111, a single cylinder injection platform movable plate 1112, a single cylinder screw 1113, a single cylinder barrel 1114, a single cylinder injection platform head plate 1115, a single cylinder injection valve 1116 and a single cylinder variable diameter valve 1117, the single cylinder injection cylinder 1101 front cover 1104 and the single cylinder injection cylinder rear cover 1105 are respectively arranged at the front and rear ends of the single cylinder injection cylinder 1101, wherein the single cylinder injection cylinder front cover 1104 and the single cylinder injection cylinder rear cover 1105 are connected through the single cylinder long bolt 1108, the single cylinder long bolt nut 1108 is provided with the single cylinder bolt nut 1109, wherein, one end of the single cylinder reducing rod 1102 close to the single cylinder injection cylinder rear cover 1105 is sleeved with a single cylinder injection piston 1103, one side of the single cylinder injection piston 1103 close to the single cylinder injection cylinder front cover 1104 in the single cylinder injection cylinder 1101 is a single cylinder reducing cavity 1107, one side close to the single cylinder injection cylinder rear cover 1105 is a single cylinder large cylinder 1106, the front end of the single cylinder injection cylinder front cover 1104 is connected with a single cylinder injection table tail plate 1110, a single cylinder thrust plate 1111 and a single cylinder injection table moving plate 1112 in sequence, wherein the single cylinder injection table tail plate 1110 is arranged at one side close to the single cylinder injection cylinder front cover 1104, the front end of the single cylinder injection table moving plate 1112 is provided with a single cylinder injection table head plate 1115, the single cylinder injection table head plate 1115 is provided with a single cylinder barrel 1114 matched with the single cylinder screw 1113, the single cylinder injection valve 1117 is connected with the single cylinder injection valve 1116, the single-cylinder reducing valve 1117 is connected with the single-cylinder reducing cavity 1107.
In this embodiment, the reducing injection double cylinder 21 includes a double-cylinder injection cylinder 2101, a double-cylinder reducing rod 2102, a double-cylinder injection piston 2103, a double-cylinder injection cylinder front cover 2104, a double-cylinder injection cylinder rear cover 2105, a double-cylinder large cylinder 2106, a double-cylinder reducing cavity 2107, a double-cylinder injection piston rod 2108, a double-cylinder cover bolt 2109, a double-cylinder injection table two-plate 2110, a double-cylinder thrust shaft 2111, a double-cylinder glue melting motor 2112, a double-cylinder screw 2113, a double-cylinder barrel 2114, a double-cylinder injection table head plate 2115, a double-cylinder injection valve 2116 and a double-cylinder reducing valve 2117, the double-cylinder injection cylinder 2101 is two, wherein the double-cylinder injection cylinder front cover 2104 and the double-cylinder injection cylinder rear cover 2105 are respectively disposed at the front and rear ends of the double-cylinder injection cylinder 2101, the double-cylinder injection cylinder front cover 2104 and the double-cylinder injection cylinder rear cover 2105 are respectively, wherein the double-cylinder reducing rod 2102 and the double-cylinder injection piston rod 2108 are coaxially and integrally arranged, the double-cylinder reducing rod 2102 is arranged at one side close to a front cover 2104 of the double-cylinder injection cylinder, the double-cylinder injection piston rod 2108 is arranged at one side close to a rear cover 2105 of the double-cylinder injection cylinder, the outer side of one end of the double-cylinder reducing rod 2102 close to the double-cylinder injection piston rod 2108 is sleeved with the double-cylinder injection piston 2103, one side of the double-cylinder injection piston rod 2108 close to the front cover 2104 of the double-cylinder injection cylinder is a double-cylinder reducing cavity 2107 in the double-cylinder injection cylinder 2101, one side close to the rear cover 2105 of the double-cylinder injection cylinder is a double-cylinder 2106, the double-cylinder glue melting motor 2112 is connected with a double-cylinder thrust shaft 2111, the front end of the double-cylinder thrust shaft 2111 is connected with a double-cylinder screw 2113, the outer side of the double-cylinder thrust shaft 2111 is provided with a double-cylinder injection table 2110, both sides of the, and a double-cylinder charging barrel 2114 matched with a double-cylinder injection piston rod 2108 is arranged on the double-cylinder injection platform head plate 2115, the double-cylinder injection valve 2116 is connected with a double-cylinder reducing valve 2117, the double-cylinder injection valve 2116 is connected with a double-cylinder large cylinder 2106, and the double-cylinder reducing valve 2117 is connected with a double-cylinder reducing cavity 2107.
In the embodiment, the single-cylinder injection valve 1116 is 03-3C12 in model, the single-cylinder reducing valve 1117 is 03-2B10B in model, and the difference between the outer diameter of the single-cylinder reducing rod 1102 and the inner diameter of the single-cylinder injection cylinder 1101 is 15-40 mm.
In the embodiment, the type of the double-cylinder injection valve 2116 is 03-3C12, the type of the double-cylinder reducing valve 2117 is 03-2B10B, and the difference between the outer diameter of the double-cylinder reducing rod 2102 and the inner diameter of the double-cylinder injection cylinder 2101 is 15-40 mm.
As shown in fig. 1, 3 and 4, the working principle of the reducing injection single cylinder 11 is as follows:
1. the injection with large cylinder diameter is suitable for products with large resistance in the whole injection process. The implementation mode is as follows:
when the single-cylinder injection valve works, the electromagnet at the end of the single-cylinder injection valve 1116a is electrified to communicate the two holes P1 and A1, pressure P enters the single-cylinder large cylinder 1106 through the two holes P1 and A1, the pressure oil P pushes the single-cylinder injection piston 1103, the single-cylinder reducing rod 1102, the single-cylinder thrust plate 1111 and the single-cylinder injection table plate 1112, and when the single-cylinder screw 1113 is started to be pushed to inject, oil in the single-cylinder reducing cavity 1107 returns to an oil tank through the holes B2 and 2 of the single-cylinder reducing valve 1117 and the holes B1 and 1 of the single-cylinder injection valve 1116. Thus, a large pressure injection of the single cylinder 1106 is performed.
2. The 'middle cylinder diameter' (the outer diameter of the reducing rod) is selected for injection, and the injection is suitable for products with medium resistance in the whole injection process. The implementation mode is as follows:
when the single-cylinder reducing valve 1117B works, the electromagnet at the end of the injection valve 16a and the electromagnet at the end of the single-cylinder reducing valve 1117B are electrified simultaneously, and are communicated with two holes P1 and A1 and two holes P2 and B2 simultaneously, so that one path of pressure P enters the single-cylinder big cylinder 1106 through the hole P1 and the hole A1, and the other path of pressure P enters the single-cylinder reducing chamber 1107 through the hole P2 and the hole B2, at the moment, the pressure is the same, but the sectional area of the single-cylinder big cylinder 1106 is far larger than that of the single-cylinder reducing chamber 1107, namely the rightward thrust of the single-cylinder big cylinder 1106 is far larger than the leftward resistance of the single-cylinder reducing chamber 1107, therefore, the pressure oil P starts to push the single-cylinder injection piston 1103, the single-cylinder reducing rod 1102, the single-cylinder thrust plate 1111, the single-cylinder injection table 1112 and starts to push the single-cylinder screw 1113 to inject, and can force the high-pressure oil of the single-cylinder reducing chamber 1107 to pass through the hole B387. Thus, a higher speed injection is performed.
As shown in fig. 2, 5 and 6, the working principle of the double variable diameter injection cylinders 21 is as follows:
1. the injection with large cylinder diameter is suitable for products with large resistance in the whole injection process. The implementation mode is as follows:
when the double-cylinder injection valve 2116a works, the electromagnet at the end is electrified to communicate the two holes P1 and A1, pressure P enters the double-cylinder large cylinder 2106 through the two holes P1 and A1, pressure oil P pushes the double-cylinder injection piston 2103, the double-cylinder injection piston rod 2108, the double-cylinder injection platform two plates 2110 and the double-cylinder thrust shaft 2111, and when the double-cylinder screw 2113 starts to be pushed for injection, oil in the double-cylinder variable diameter cavity 2107 returns to an oil tank through the hole B2 and the hole 2 of the double-cylinder variable diameter valve 2117 and the hole B1 and the hole 1 of the double-cylinder injection valve 2116. Thus, a two-cylinder large cylinder 2106 large pressure injection is performed.
2. The 'middle cylinder diameter' (the outer diameter of the reducing rod) is selected for injection, and the injection is suitable for products with medium resistance in the whole injection process. The implementation mode is as follows:
when the double-cylinder reducing valve works, the end electromagnet of the double-cylinder injection valve 2116a and the end electromagnet of the double-cylinder reducing valve 2117B are electrified simultaneously, and are communicated with two holes P1 and A1 and two holes P2 and B2 simultaneously, so that one path of pressure P enters the double-cylinder large cylinder 2106 through the hole P1 and the hole A1, and the other path of pressure P enters the double-cylinder reducing chamber 2107 through the hole P2 and the hole B2, at the moment, the pressure is the same, but the effective sectional area of the double-cylinder large cylinder 2106 is far larger than that of the double-cylinder reducing chamber 2107, namely, the left thrust of the double-cylinder large cylinder 2106 far exceeds the right resistance of the double-cylinder reducing chamber 2107, therefore, the pressure oil P starts to push the double-cylinder injection piston 2103, the double-cylinder injection piston rod 2108, the injection table two plate 2110 and the double-cylinder thrust shaft 2111, starts to push the double-cylinder screw 2113 for injection, and simultaneously, the high-pressure oil of the double-cylinder reducing chamber 7 is forced to pass through the hole B2 and the hole. Thus, a higher speed injection is performed.
The invention has the beneficial effects that:
the oil cylinder can be controlled through electric hydraulic pressure and really has a practical diameter-changing function;
secondly, a sizing cylinder with a fixed cylinder diameter injected by the existing injection molding machine can be changed into a variable diameter cylinder with two selectable cylinder diameters and a practical function;
and thirdly, the reducing injection cylinder comprises a single-cylinder injection cylinder and a double-cylinder injection cylinder of the existing injection molding machine.
The diameter-variable cylinder must be provided with a diameter-variable rod, the outer diameter of the diameter-variable rod is 15-40 mm smaller than the inner diameter of the oil cylinder, and the diameter-variable range is a distinguishing standard for distinguishing the sizing cylinder and the diameter-variable cylinder of the existing injection molding machine. Because the reducing cylinder of the injection molding machine has the unique characteristics, two kinds of optimal combinations of injection, oil cylinder pressure and speed and energy-saving effect can be selected when different products are produced.
The present invention relates not only to an injection cylinder of hydraulic equipment such as an injection molding machine, an oil press, and a molding press, but also to an ejector cylinder of hydraulic equipment such as an injection molding machine, an oil press, and a molding press. The reducing cylinder technology of the invention enables the hydraulic equipment of the existing injection sizing cylinder to select the best combination of two pressures and speeds and the energy-saving effect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The injection reducing cylinder of the injection molding machine is characterized in that: the single-cylinder injection molding machine comprises a variable-diameter injection single cylinder and a variable-diameter injection double cylinder, wherein the variable-diameter injection single cylinder is installed on a single-cylinder injection table of the injection molding machine, the variable-diameter injection double cylinder is installed on a double-cylinder injection table of the injection molding machine, the variable-diameter injection single cylinder and the variable-diameter injection double cylinder are respectively provided with a variable-diameter rod, and the outer diameter of the variable-diameter rod is 15-40 mm smaller than the inner.
2. The injection reducing cylinder of the injection molding machine according to claim 1, wherein: the reducing injection single cylinder is arranged on the injection platform tail plate and comprises a single cylinder injection cylinder body, a single cylinder reducing rod, a single cylinder injection piston, a single cylinder injection cylinder front cover, a single cylinder injection cylinder rear cover, a single cylinder large cylinder, a single cylinder reducing cavity, a single cylinder oil cylinder long bolt, a single cylinder bolt tightening nut, a single cylinder injection platform tail plate, a single cylinder thrust plate, a single cylinder injection platform moving plate, a single cylinder screw rod, a single cylinder charging barrel, a single cylinder injection platform head plate, a single cylinder injection valve and a single cylinder reducing valve, wherein the single cylinder injection cylinder front cover and the single cylinder injection cylinder rear cover are respectively arranged at the front end and the rear end of the single cylinder injection cylinder body, the single cylinder injection cylinder front cover and the single cylinder injection cylinder rear cover are connected through the single cylinder oil cylinder long bolt, the single cylinder oil cylinder bolt tightening nut is assembled on the single cylinder injection cylinder oil cylinder long bolt, the single cylinder injection cylinder body is internally provided, and one side that the single cylinder injection piston is close to the single cylinder injection jar protecgulum in the single cylinder injection jar is single cylinder reducing chamber, and one side that is close to single cylinder injection jar back lid is the single cylinder vat, the front end of single cylinder injection jar protecgulum connect gradually single cylinder and penetrate a tail plate, single cylinder thrust plate and single cylinder and penetrate a bench movable plate, wherein the single cylinder penetrates a bench tail plate and locates the one side that is close to the single cylinder injection jar protecgulum, and the front end that the single cylinder penetrated a bench movable plate is equipped with the single cylinder screw rod, the place ahead that the single cylinder penetrated a bench movable plate be equipped with the single cylinder and penetrate a bench movable plate, and be equipped with the single cylinder feed cylinder section of thick bamboo with single cylinder screw rod adaptation on the single cylinder shooting bench movable plate, single cylinder injection valve and single cylinder reducing valve be connected, and.
3. The injection reducing cylinder of the injection molding machine according to claim 1, wherein: the reducing injection double cylinder is arranged on the injection platform head plate and comprises a double-cylinder injection cylinder body, a double-cylinder reducing rod, a double-cylinder injection piston, a double-cylinder injection cylinder front cover, a double-cylinder injection cylinder rear cover, a double-cylinder large cylinder, a double-cylinder reducing cavity, a double-cylinder injection piston rod, a double-cylinder cover bolt, a double-cylinder injection platform two plate, a double-cylinder thrust shaft, a double-cylinder melt adhesive motor, a double-cylinder screw rod, a double-cylinder charging barrel, a double-cylinder injection platform head plate, a double-cylinder injection valve and a double-cylinder reducing valve, wherein the double-cylinder injection cylinder front cover and the double-cylinder injection cylinder rear cover are respectively arranged at the front end and the rear end of the double-cylinder injection cylinder body and are respectively connected with the double-cylinder injection cylinder body through the double-cylinder cover bolt, the double-cylinder injection cylinder body is internally provided with the double-cylinder, the double-cylinder reducing rod is arranged at one side close to the front cover of the double-cylinder injection cylinder, the double-cylinder injection piston rod is arranged at one side close to the rear cover of the double-cylinder injection cylinder, the outer side of one end, close to the double-cylinder injection piston rod, of the double-cylinder reducing rod is sleeved with the double-cylinder injection piston, one side, close to the front cover of the double-cylinder injection cylinder, of the double-cylinder injection piston rod in the double-cylinder injection cylinder is a double-cylinder reducing cavity, one side, close to the rear cover of the double-cylinder injection cylinder, of the double-cylinder injection cylinder is a double-cylinder large cylinder, the double-cylinder glue melting motor is connected with a double-cylinder thrust shaft, the front end of the double-cylinder thrust shaft is connected with a double-cylinder screw rod, the outer side of the double-cylinder thrust shaft is provided with a double-cylinder injection table two plate, two sides, the double-cylinder injection valve is connected with the double-cylinder reducing valve, the double-cylinder injection valve is connected with the double-cylinder large cylinder, and the double-cylinder reducing valve is connected with the double-cylinder reducing cavity.
4. The injection reducing cylinder of the injection molding machine according to claim 2, wherein: the single-cylinder injection valve is 03-3C12 in model, the single-cylinder reducing valve is 03-2B10B in model, and the difference between the outer diameter of the single-cylinder reducing rod and the inner diameter of the single-cylinder injection cylinder body is 15-40 mm.
5. The reducing cylinder of the injection molding machine as claimed in claim 3, wherein: the model of the double-cylinder injection valve is 03-3C12, the model of the double-cylinder reducing valve is 03-2B10B, and the difference between the outer diameter of the double-cylinder reducing rod and the inner diameter of the double-cylinder injection cylinder body is 15-40 mm.
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| CN202010297869.2A CN111590838A (en) | 2020-04-16 | 2020-04-16 | Injection reducing cylinder of injection molding machine |
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| CN202010297869.2A CN111590838A (en) | 2020-04-16 | 2020-04-16 | Injection reducing cylinder of injection molding machine |
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| CN204109306U (en) * | 2014-09-30 | 2015-01-21 | 姚惠祥 | The oil channel structures of mode locking cylinder supercharging is synchronized to by injection piston power |
| CN107498813A (en) * | 2017-09-22 | 2017-12-22 | 成都市联余精密机械有限公司 | A kind of injection machine injection hydraulic circuit and its injection control method for realizing high response injection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07251432A (en) * | 1994-03-15 | 1995-10-03 | Meiki Co Ltd | Injection cylinder and injection controller for injection molding machine |
| JPH08127053A (en) * | 1994-10-31 | 1996-05-21 | Toshiba Mach Co Ltd | Injection device of injection molding machine |
| CN102689422A (en) * | 2012-05-24 | 2012-09-26 | 宁波新海太塑料机械有限公司 | Injection device of vertical injection molding machine |
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Application publication date: 20200828 |