Additional oil cylinder assembly of movable plate pressurizing type two-plate injection molding machine

Abstract

The utility model relates to the field of injection molding machines, in particular to an added oil cylinder assembly of a movable plate supercharged two-plate injection molding machine, which comprises a high-pressure piston, a high-pressure oil cylinder, a high-pressure cylinder positioning shaft, a high-pressure oil cylinder flange and a high-pressure piston shaft, and the high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed on a movable template; the high-pressure piston is arranged on the high-pressure cylinder positioning shaft in a front-back sliding mode, the high-pressure piston and the high-pressure piston shaft are fixed together, and the high-pressure piston and the high-pressure oil cylinder flange are limited through the high-pressure cylinder positioning shaft, so that the high-pressure piston cannot rotate and can only slide front and back along the high-pressure cylinder positioning shaft. A high-pressure oil inlet cavity is arranged among the high-pressure piston, the high-pressure oil cylinder and the high-pressure oil cylinder flange, when oil enters the high-pressure oil cylinder oil inlet cavity, the high-pressure oil cylinder starts high pressure, the high-pressure piston extends outwards, a high-pressure oil return cavity is arranged between the high-pressure oil cylinder flange and the high-pressure piston shaft, and when oil enters the high-pressure oil cylinder oil return cavity, the high-pressure oil cylinder releases pressure. And the high-pressure piston shrinks inwards.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, and more specifically, to an additional oil cylinder assembly of a dynamic plate supercharged two-plate injection molding machine. Background Art

[0002] The two-platen high-pressure type two-platen injection molding machine high-pressure cylinder assembly is an important component of the two-platen injection molding machine. The two-platen injection molding machine high-pressure cylinder assembly currently on the market has one end installed on the rear movable platen, and the extended end of the piston shaft is fixed on the front movable platen. However, this two-platen high-pressure type two-platen injection molding machine high-pressure cylinder assembly needs to be used in conjunction with the front and rear movable platens, and the overall structure is complex.

[0003] Therefore, it is necessary to propose an additional oil cylinder assembly for a dynamic plate supercharged two-plate injection molding machine that solves the above problems. Utility Model Content

[0004] In order to overcome at least one defect (shortcoming) of the above-mentioned prior art, the utility model provides an additional oil cylinder assembly for a dynamic plate supercharged two-plate injection molding machine.

[0005] In order to solve the above technical problems, the technical solution of the present utility model is as follows: an additional oil cylinder assembly of a dynamic plate supercharged two-platen injection molding machine, comprising a high-pressure piston, a high-pressure oil cylinder, a high-pressure cylinder positioning shaft, a high-pressure oil cylinder flange and a high-pressure piston shaft;

[0006] The high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed on the movable platen;

[0007] The cam is pressed against the piston rod and the piston rod is pressed downwards to push the piston upwards, so that the cam can move upwards and downwards, thereby preventing the piston from sliding backwards and upwards.

[0008] Furthermore, the high-pressure piston is provided with an engaging nut, the movable plate is provided with a Coring post with external teeth, the inner teeth of the engaging nut are clamped on the outer teeth of the Coring post, and the engaging nut is provided with an engaging nut pressure plate. Through the setting of the engaging nut and the Coring post, its function is to push the engaging nut on the high-pressure piston so that the inner teeth of the engaging nut are clamped on the outer teeth of the Coring post.

[0009] Furthermore, there are four Corinthian columns. In practical applications, it may be necessary to set the number of Corinthian columns, which is within the protection scope of the present utility model.

[0010] Furthermore, the volume of the high-pressure oil inlet chamber is larger than the volume of the high-pressure oil withdrawal chamber. Through such a setting, by setting the volume of the cavity, when the high-pressure oil inlet chamber is filled with oil, the thrust generated by the high-pressure oil cylinder is very large, and when the high-pressure oil cylinder withdrawal chamber is filled with oil, the thrust generated by the high-pressure oil cylinder is very small, and only the requirement of high-pressure cylinder withdrawal needs to be met.

[0011] Furthermore, the high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed to the dynamic template by a first bolt, and the high-pressure piston and the high-pressure piston shaft are fixed together by a second bolt. In actual application, fixation can also be achieved by other means, which also falls within the scope of protection of the present utility model.

[0012] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0013] The utility model discloses an additional oil cylinder assembly for a dynamic platen pressurized two-platen injection molding machine. By setting a high-pressure oil inlet chamber and a high-pressure oil outlet chamber, and fixing the high-pressure oil cylinder and the high-pressure oil cylinder flange on the dynamic platen, the overall structure of the additional oil cylinder assembly for the dynamic platen pressurized two-platen injection molding machine is simple and compact, so that the dynamic platen can carry the mold to perform a tight mold closing action, thereby meeting the mold closing injection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of the additional oil cylinder assembly of the middle-moving plate supercharged two-platen injection molding machine in an extended state.

[0015] Figure 2 The utility model is a structural schematic diagram of the additional oil cylinder assembly of the middle-moving plate supercharged two-platen injection molding machine in a contracted state.

[0016] Figure 3 The utility model is a structural schematic diagram of the additional oil cylinder assembly of the dynamic plate supercharged two-plate injection molding machine when it is extended after the engaging nut is set.

[0017] Figure 4 The utility model is a structural schematic diagram of the additional oil cylinder assembly of the dynamic plate supercharged two-platen injection molding machine during contraction after the engaging nut is set.

[0018] Figure 5 The utility model is a schematic diagram of the internal structure of the additional oil cylinder assembly of the middle-moving plate supercharged two-platen injection molding machine.

[0019] In the figure, 1 is the high-pressure piston, 2 is the high-pressure oil cylinder, 3 is the high-pressure cylinder positioning shaft, 4 is the high-pressure oil cylinder flange, 5 is the high-pressure piston shaft, 6 is the movable template, 7 is the high-pressure oil inlet chamber, 8 is the high-pressure oil withdrawal chamber, 9 is the interlocking nut, 10 is the Golin column, 11 is the internal teeth, 12 is the external teeth, and 13 is the interlocking nut pressure plate. DETAILED DESCRIPTION

[0020] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installation" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, which can be considered as internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model. The technical solution of this utility model is further described below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1-2 As shown, an additional oil cylinder assembly of a dynamic plate booster type two-plate injection molding machine includes a high-pressure piston 1, a high-pressure oil cylinder 2, a high-pressure cylinder positioning shaft 3, a high-pressure oil cylinder flange 4 and a high-pressure piston shaft 5; the high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed on the dynamic plate 6; the high-pressure piston is slidable back and forth on the high-pressure cylinder positioning shaft, the high-pressure piston and the high-pressure piston shaft are fixed together, the high-pressure piston and the high-pressure oil cylinder flange are limited by the high-pressure cylinder positioning shaft, so that the high-pressure piston cannot rotate and can only slide back and forth along the high-pressure cylinder positioning shaft, and the high-pressure piston, the high-pressure oil cylinder and the high-pressure cylinder flange are between A high-pressure oil inlet chamber 7 is provided. When oil is supplied to the high-pressure oil cylinder inlet chamber, the high-pressure oil cylinder generates high pressure and the high-pressure piston extends outward. A high-pressure oil withdrawal chamber 8 is provided between the high-pressure oil cylinder flange and the high-pressure piston shaft. When oil is supplied to the high-pressure oil cylinder withdrawal chamber, the high-pressure oil cylinder releases pressure and the high-pressure piston contracts inward. By setting the high-pressure oil inlet chamber and the high-pressure oil withdrawal chamber, and fixing the high-pressure oil cylinder and the high-pressure oil cylinder flange on the movable plate, the overall structure of the added oil cylinder assembly of the movable plate supercharged two-plate injection molding machine is simple and compact, so that the movable plate can carry the mold to perform a tight mold closing action, thereby meeting the mold closing and injection requirements.

[0023] like Figure 3-5As shown, the high-pressure piston is provided with an engaging nut 9, the dynamic plate is provided with a Corinthian column 10 with external teeth, the inner teeth 11 of the engaging nut are clamped on the outer teeth 12 of the Corinthian column, and the engaging nut is provided with an engaging nut pressure plate 13. Through the setting of the engaging nut and the Corinthian column, its function is to push the engaging nut on the high-pressure piston so that the inner teeth of the engaging nut are clamped on the outer teeth of the Corinthian column. Among them, there are four Corinthian columns. In actual applications, it can be felt that the number of Corinthian columns needs to be set, which is all within the protection scope of this utility model.

[0024] Among them, the volume of the high-pressure oil inlet chamber is larger than the volume of the high-pressure oil withdrawal chamber. Through such a setting, by setting the volume of the cavity, when the high-pressure oil inlet chamber is filled with oil, the thrust generated by the high-pressure oil cylinder is very large, and when the high-pressure oil cylinder withdrawal chamber is filled with oil, the thrust generated by the high-pressure oil cylinder is very small, and it is only necessary to meet the requirements of high-pressure cylinder withdrawal. The high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed to the dynamic template by a first bolt, and the high-pressure piston and the high-pressure piston shaft are fixed together by a second bolt. In actual application, fixation can also be achieved by other means, which also falls within the protection scope of the present utility model.

[0025] Example

[0026] In this embodiment, since the high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed on the dynamic template; the high-pressure piston can be slid back and forth on the high-pressure cylinder positioning shaft, the high-pressure piston and the high-pressure piston shaft are fixed together, and the high-pressure piston and the high-pressure oil cylinder flange are limited by the high-pressure cylinder positioning shaft, so that the high-pressure piston cannot rotate and can only slide back and forth along the high-pressure cylinder positioning shaft. A high-pressure oil inlet chamber is provided between the high-pressure piston, the high-pressure oil cylinder and the high-pressure oil cylinder flange. When oil is added to the high-pressure oil cylinder inlet chamber, the high-pressure oil cylinder generates high pressure and the high-pressure piston extends outward. A high-pressure oil withdrawal chamber is provided between the high-pressure cylinder flange and the high-pressure piston shaft. When oil is added to the high-pressure oil cylinder withdrawal chamber, The high-pressure oil cylinder releases pressure, and the high-pressure piston contracts inward. Through the setting of the high-pressure oil inlet chamber and the high-pressure oil outlet chamber, the high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed to the movable platen, and an engaging nut is provided on the high-pressure piston. The movable platen is provided with a coring post with external teeth, and the inner teeth of the engaging nut are clamped on the outer teeth of the coring post. Through the setting of the engaging nut and the coring post, its function is to push the engaging nut on the high-pressure piston so that the inner teeth of the engaging nut are clamped on the outer teeth of the coring post, making the overall structure of the increased oil cylinder assembly of the movable plate supercharged two-plate injection molding machine simple and compact, so that the movable platen can carry the mold to perform a tight mold closing action, thereby meeting the mold closing and injection requirements.

[0027] In the figure, the positional relationship is described only for illustrative purposes and should not be understood as a limitation on this patent. Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An additional oil cylinder assembly for a dynamic platen pressurized two-platen injection molding machine, comprising a high-pressure piston, a high-pressure oil cylinder, a high-pressure cylinder positioning shaft, a high-pressure oil cylinder flange, and a high-pressure piston shaft, characterized in that: The high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed on the movable platen; The high-pressure piston can be slid back and forth on the high-pressure cylinder positioning shaft. The high-pressure piston and the high-pressure piston shaft are fixed together. The high-pressure piston and the high-pressure oil cylinder flange are limited by the high-pressure cylinder positioning shaft, so that the high-pressure piston cannot rotate and can only slide back and forth along the high-pressure cylinder positioning shaft. A high-pressure oil inlet chamber is provided between the high-pressure piston, the high-pressure oil cylinder and the high-pressure oil cylinder flange. When the high-pressure oil cylinder oil inlet chamber is filled with oil, the high-pressure oil cylinder generates high pressure and the high-pressure piston extends outward. A high-pressure oil withdrawal chamber is provided between the high-pressure oil cylinder flange and the high-pressure piston shaft. When the high-pressure oil cylinder oil withdrawal chamber is filled with oil, the high-pressure oil cylinder is depressurized and the high-pressure piston retracts inward.

2. The additional oil cylinder assembly of the dynamic plate supercharged two-platen injection molding machine according to claim 1 is characterized in that: The high-pressure piston is provided with an engaging nut, the movable plate is provided with a Coring post with external teeth, the inner teeth of the engaging nut are clamped on the outer teeth of the Coring post, and the engaging nut is provided with an engaging nut pressure plate.

3. The additional oil cylinder assembly of the dynamic plate supercharged two-platen injection molding machine according to claim 2 is characterized in that: There are four Corinthian columns.

4. The additional oil cylinder assembly of the dynamic plate supercharged two-platen injection molding machine according to claim 1 is characterized in that: The volume of the high-pressure oil inlet chamber is greater than the volume of the high-pressure oil outlet chamber.

5. The additional oil cylinder assembly of the dynamic plate supercharged two-platen injection molding machine according to claim 1 is characterized in that: The high-pressure oil cylinder and the high-pressure oil cylinder flange are fixed to the movable platen by first bolts, and the high-pressure piston and the high-pressure piston shaft are fixed together by second bolts.

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