Template lifting control device of injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine template lifting control device which comprises a base, a lower template, an upper template, a mold closing column, a main oil cylinder and a quick mold opening and closing oil cylinder, and the mold closing column, the main oil cylinder and the quick mold opening and closing oil cylinder are all vertically fixed on the base. The lower mold plate is arranged above the main oil cylinder and connected with a piston rod of the main oil cylinder, the upper mold plate is arranged above the lower mold plate and connected with a piston cylinder of the rapid mold opening and closing oil cylinder, the mold closing column sequentially penetrates through the lower mold plate and the upper mold plate, the main oil cylinder controls the lower mold plate to ascend and descend, and the rapid mold opening and closing oil cylinder controls the upper mold plate to ascend and descend. Due to the fact that the oil cylinders for controlling ascending and descending of the upper mold plate and the lower mold plate are arranged on the base and located at the low position, the mold opening height of the whole upper mold plate and the lower mold plate is controlled, the height design of the whole device is lowered, and finally the height design of the injection molding machine is lowered.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding machines, and in particular relates to a template lifting control device for an injection molding machine. Background Art

[0002] Injection molding machine is a main molding equipment that can use plastic molding molds to make thermoplastic plastics or thermosetting plastics into plastic products of various shapes. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. During the use of the injection molding machine, the raw materials need to be transported through the material platform to facilitate the processing of the staff.

[0003] However, in order to ensure sufficient mold opening height, the existing injection molding machine needs to be equipped with a very high platform to have sufficient height to provide sufficient mold opening height. This causes the overall height of the injection molding machine to be designed higher, which affects the overall convenience of use on the one hand, and also increases the cost of the injection molding machine on the other hand. Utility Model Content

[0004] The utility model aims to provide a template lifting control device for an injection molding machine, aiming to solve the technical problems in the prior art that the injection molding machine platform is too high, resulting in poor convenience of use and high cost of the injection molding machine.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides an injection molding machine template lifting control device, including a base, a lower template, an upper template, a clamping column, a main oil cylinder and a quick mold switch cylinder, the clamping column, the main oil cylinder and the quick mold switch cylinder are all vertically fixed on the base, the lower template is arranged above the main oil cylinder and connected to the piston rod of the main oil cylinder, the upper template is arranged above the lower template and connected to the piston cylinder of the quick mold switch cylinder, the clamping column passes through the lower template and the upper template in sequence, the main oil cylinder controls the rise and fall of the lower template, and the quick mold switch cylinder controls the rise and fall of the upper template.

[0006] Optionally, the injection molding machine template lifting control device also includes a mold guide column, the side of the upper template is provided with a guide hole, the mold guide column passes through the guide hole, the bottom end of the mold guide column is connected and fixed to the base, and the top end of the mold guide column is connected and fixed to the top end of the mold column through a connecting plate.

[0007] Optionally, two mold closing guide pins are provided, and the two mold closing guide pins are distributed at two obliquely opposite corners of the base.

[0008] Optionally, four mold clamping columns are provided, and the four mold clamping columns are distributed at the four corners of the base. Two connecting plates are provided, and one of the connecting plates connects one of the mold clamping guide columns and the top ends of two adjacent mold clamping columns, and the other connecting plate connects another mold clamping guide column and the top ends of two adjacent mold clamping columns.

[0009] Optionally, two quick mold opening and closing oil cylinders are provided, and the two quick mold opening and closing oil cylinders are distributed on opposite sides of the base.

[0010] Optionally, the injection molding machine template lifting control device also includes a brake cylinder and a brake nut, the outer peripheral surface of the clamping column extending above the upper template is provided with an external thread, the brake nut is arranged outside the clamping column and adapted to the external thread, the brake cylinder is installed on the upper template and connected to the brake nut to control the brake nut to tighten or loosen the connection with the external thread.

[0011] The above one or more technical solutions in the injection molding machine template lifting control device provided by the embodiment of the utility model have at least one of the following technical effects: in the injection molding machine template lifting control device of the utility model, the upper template is fixedly installed on the upper mold of the mold, and the lower template is fixedly installed on the lower mold of the mold. When working, the piston rod of the quick mold switch oil cylinder moves downward, driving the upper template downward to achieve quick mold closing. After the quick mold closing is converted to low pressure, the piston rod of the main oil cylinder runs from bottom to top, driving the lower template upward to achieve high-pressure mold closing. At this time, the injection molding process is carried out. After the plastic molding is completed, the mold is locked and unloaded. The piston rod of the main oil cylinder runs from top to bottom, driving the lower template downward and unloading. The main oil cylinder realizes mold opening control to open the mold, and the piston rod of the quick mold switch oil cylinder moves upward to drive the upper template upward to achieve quick mold opening. Since the control oil cylinders for the rise and fall of the upper template and the lower template are both on the base and are set in a low position, the mold opening height of the entire upper template and the lower template is controlled, thereby reducing the height design of the entire device, and finally realizing the height design reduction of the injection molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 A schematic diagram of the structure of the injection molding machine template lifting control device provided by the embodiment of the utility model

[0014] Among them, the reference numerals in the figure are:

[0015] 1—base 2—lower template 3—upper template

[0016] 3a—guide hole 4—mold clamping column 4a—external thread

[0017] 5—Main cylinder 6—Quick switch mold cylinder 7—Mold closing guide pin

[0018] 8—brake cylinder 9—brake nut 10—connecting plate. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0020] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0023] In one embodiment of the present invention, Figure 1As shown, a mold lifting control device for an injection molding machine is provided, comprising a base 1, a lower mold 2, an upper mold 3, a clamping column 4, a main oil cylinder 5 and a quick mold switch cylinder 6, wherein the clamping column 4, the main oil cylinder 5 and the quick mold switch cylinder 6 are all vertically fixed on the base 1, the lower mold 2 is arranged above the main oil cylinder 5 and connected to the piston rod of the main oil cylinder 5, the upper mold 3 is arranged above the lower mold 2 and connected to the piston cylinder of the quick mold switch cylinder 6, the clamping column 4 passes through the lower mold 2 and the upper mold 3 in sequence, the main oil cylinder 5 controls the rise and fall of the lower mold 2, and the quick mold switch cylinder 6 controls the rise and fall of the upper mold 3.

[0024] In the injection molding machine template lifting control device of the utility model embodiment, the upper template 3 is fixedly installed for the upper mold of the mold, and the lower template 2 is fixedly installed for the lower mold of the mold. When working, the piston rod of the quick mold switch oil cylinder 6 moves downward, driving the upper template 3 downward to achieve quick mold closing. After the quick mold closing is converted to low pressure, the piston rod of the main oil cylinder 5 runs from bottom to top, driving the lower template 2 upward to achieve high-pressure mold closing. At this time, the injection molding process is carried out. After the plastic molding is completed, the mold is locked and unloaded. The piston rod of the main oil cylinder 5 runs from top to bottom, driving the lower template 2 downward, unloading, the main oil cylinder 5 realizes the mold opening control to open the mold, and the piston rod of the quick mold switch oil cylinder 6 moves upward, driving the upper template 3 upward to achieve quick mold opening. Since the control cylinders for the rise and fall of the upper template 3 and the lower template 2 are both on the base 1 and are set in a low position, the mold opening height of the entire upper template 3 and the lower template 2 is controlled, thereby reducing the height design of the entire device, and finally realizing the height design reduction of the injection molding machine.

[0025] In one embodiment of the utility model, the injection molding machine template lifting control device further includes a mold guide post 7, a guide hole 3a is provided on the side of the upper template 3, the mold guide post 7 passes through the guide hole 3a, the bottom end of the mold guide post 7 is connected and fixed to the base 1, and the top end of the mold guide post 7 is connected and fixed to the top end of the mold post 4 through a connecting plate 10. Specifically, the setting of the mold guide post 7 can ensure that the rise and fall of the upper template 3 is limited to movement along the direction of the mold guide post 7, so that even if the upper template 3 is in a higher position, the accuracy and stability of its mold opening and closing can be ensured.

[0026] In one embodiment of the utility model, two mold clamping guide pins 7 are provided, and the two mold clamping guide pins 7 are distributed at two diagonally opposite corners of the base 1. Specifically, two mold clamping pins 4 are arranged at diagonally opposite corners to guide the rise and fall of the upper mold plate 3 at the diagonally opposite corners, and the stability is further improved.

[0027] In one embodiment of the utility model, four mold clamping posts 4 are provided, and the four mold clamping posts 4 are distributed at the four corners of the base 1. Two connecting plates 10 are provided, one of which connects one of the mold clamping guide posts 7 and the top ends of two adjacent mold clamping posts 4, and the other connecting plate 10 connects another mold clamping guide post 7 and the top ends of the other two adjacent mold clamping posts 4. Specifically, the design of the four mold clamping posts 4 realizes the rise and fall of the upper mold plate 3 by stably guiding the four corners.

[0028] In one embodiment of the utility model, two quick mold opening and closing cylinders 6 are provided, and the two quick mold opening and closing cylinders 6 are distributed on opposite sides of the base 1. Specifically, the two quick mold opening and closing cylinders 6 jointly control the rise and fall of the upper mold plate 3, and realize sufficient power to drive the upper mold plate 3 to ensure the normal operation of the upper mold plate 3.

[0029] In one embodiment of the utility model, the injection molding machine template lifting control device further includes a brake cylinder 8 and a brake nut 9, the outer peripheral surface of the mold clamping column 4 extending above the upper mold plate 3 is provided with an external thread 4a, the brake nut 9 is arranged outside the mold clamping column 4 and adapted to the external thread 4a, and the brake cylinder 8 is installed on the upper mold plate 3 and connected to the brake nut 9 to control the brake nut 9 to tighten or loosen the connection with the external thread 4a. Specifically, the piston rod of the brake cylinder 8 extends to drive the brake nut 9 to tighten the external thread 4a on the mold clamping column 4, at which time it can ensure that the upper mold plate 3 stops rising or falling, completes the mold clamping of the upper mold plate 3 and ensures the stable progress of the injection molding process. After the injection molding process is completed, the piston rod of the brake cylinder 8 extends to drive the brake nut 9 to loosen the mold clamping column 4 to achieve separation from the mold clamping column 4, then at this time, the rapid switch mold cylinder 6 can realize the control of the upper mold plate 3 to open the mold.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold plate lifting control device for an injection molding machine, characterized in that: It includes a base, a lower template, an upper template, a clamping column, a main oil cylinder and a quick mold opening and closing cylinder. The clamping column, the main oil cylinder and the quick mold opening and closing cylinder are all vertically fixed on the base. The lower template is arranged above the main oil cylinder and connected to the piston rod of the main oil cylinder. The upper template is arranged above the lower template and connected to the piston cylinder of the quick mold opening and closing cylinder. The clamping column passes through the lower template and the upper template in sequence. The main oil cylinder controls the rising and falling of the lower template, and the quick mold opening and closing cylinder controls the rising and falling of the upper template.

2. The injection molding machine template lifting control device according to claim 1 is characterized in that: The injection molding machine template lifting control device also includes a mold guide column, a guide hole is provided on the side of the upper template, the mold guide column passes through the guide hole, the bottom end of the mold guide column is connected and fixed to the base, and the top end of the mold guide column is connected and fixed to the top end of the mold column through a connecting plate.

3. The injection molding machine template lifting control device according to claim 2 is characterized in that: The mold closing guide pins are provided with two, and the two mold closing guide pins are distributed at two obliquely opposite corners of the base.

4. The injection molding machine template lifting control device according to claim 3 is characterized in that: There are four mold clamping columns, which are distributed at the four corners of the base. There are two connecting plates, one of which connects one of the mold clamping guide columns and the top ends of two adjacent mold clamping columns, and the other connecting plate connects another mold clamping guide column and the top ends of two adjacent mold clamping columns.

5. The injection molding machine template lifting control device according to claim 1, characterized in that: The two quick mold opening and closing oil cylinders are provided, and the two quick mold opening and closing oil cylinders are distributed on opposite sides of the base.

6. The injection molding machine template lifting control device according to claim 1, characterized in that: The injection molding machine template lifting control device also includes a brake cylinder and a brake nut. The outer peripheral surface of the clamping column extending above the upper template is provided with an external thread. The brake nut is arranged outside the clamping column and adapted to the external thread. The brake cylinder is installed on the upper template and connected to the brake nut to control the brake nut to tighten or loosen the connection with the external thread.

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