Mounting and connecting structure of oil cylinder and ejector plate

Abstract

The utility model relates to the technical field of injection molding structures, in particular to a mounting and connecting structure of an oil cylinder and an ejector plate, which comprises a plate B, an oil cylinder connected with the plate B is arranged in the plate B, a bottom plate is arranged below the plate B, an ejector bottom plate is arranged on the bottom plate, and a mounting and connecting assembly used for connecting the ejector bottom plate and the oil cylinder is arranged between the ejector bottom plate and the oil cylinder. The installation connecting assembly comprises an oil cylinder connecting column, the oil cylinder connecting column is installed in the ejector pin bottom plate, an oil cylinder driving rod is arranged at the output end of the oil cylinder, and the oil cylinder driving rod is connected with the oil cylinder connecting column. Compared with the prior art, the oil cylinder and ejector plate mounting and connecting structure has the advantages that the oil cylinder connecting column is provided with the positioning groove for stopping rotation, so that screw loosening caused by rotation possibly occurring in the repeated movement process is prevented, and the oil cylinder and ejector plate mounting and connecting structure is simpler and more practical than other rotation stopping modes. The installation connecting structure of the ejector plate is convenient to maintain, the key pin inserting piece is fixed to the ejector plate, the oil cylinder is convenient to disassemble and assemble, and in the repeated movement process, stamping deformation or abrasion is avoided, and disassembly, assembly and replacement are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding structures, in particular to an installation and connection structure between an oil cylinder and a thimble plate. Background Technique

[0002] Injection molding is a method for manufacturing industrial product shapes. Products usually use rubber injection molding and plastic injection molding.

[0003] In a conventional injection mold, a thimble plate needs to be driven by multiple oil cylinders. However, the disassembly and assembly of the oil cylinders in some equipment are rather troublesome and difficult to maintain, thus increasing the maintenance cost of the manufacturer. Therefore, an installation and connection structure between the oil cylinder and the thimble plate is proposed. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an installation and connection structure between an oil cylinder and a thimble plate, and solves the problems put forward in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: an installation and connection structure between an oil cylinder and a thimble plate, including a B plate. An oil cylinder connected to the B plate is provided in the B plate. A bottom plate is provided below the B plate. A thimble bottom plate is provided on the bottom plate. An installation and connection component for connecting the thimble bottom plate and the oil cylinder is provided between the thimble bottom plate and the oil cylinder. The installation and connection component includes an oil cylinder connection column installed in the thimble bottom plate. An oil cylinder driving rod is provided at the output end of the oil cylinder, and the oil cylinder driving rod is connected to the oil cylinder connection column. Attention should be paid to the size of the oil cylinder thread type, which shall be subject to the information provided by the oil cylinder company.

[0008] Further, a fixed key pin capable of locking and fixing the oil cylinder connection column is provided in the thimble bottom plate. A connection bolt connected to the oil cylinder connection column is provided inside the oil cylinder connection column, and the connection bolt can be inserted into the oil cylinder driving rod.

[0009] Further, the bottom end of the oil cylinder driving rod can be embedded into the inner wall of the top end position of the oil cylinder connection column and close to the connection bolt. A positioning groove capable of locking and limiting the oil cylinder driving rod is also provided in the inner wall of the top end position of the oil cylinder connection column and close to the connection bolt. A thimble panel sleeved on the oil cylinder connection column is provided on the thimble bottom plate. The thimble plate of a large mold is driven by multiple oil cylinders, and requires simple disassembly and assembly and convenient maintenance. The oil cylinder connection column is designed with a positioning groove to prevent rotation, which may occur during repeated movement and cause the screws to loosen. It is simpler and more practical than other anti-rotation methods.

[0010] Further, internal threads adapted to the connecting bolts are provided in the oil cylinder drive rod. The cross-sectional shape of the fixed key pin is U-shaped. A notch adapted to the fixed key pin is provided in the thimble bottom plate. An annular notch matching the U-shaped fixed key pin is provided at the bottom end of the oil cylinder connecting column. The fixed key pin is installed at the annular notch of the fixed key pin and fixed at the notch in the thimble bottom plate by bolts.

[0011] Further, clamping planes are provided on two opposite outer sides at the top end of the fixed key pin, and the cross-sectional shape of the clamping plane is square dovetail groove-shaped.

[0012] Further, an oil inlet communicating with the inside of the oil cylinder and an oil outlet communicating with the inside of the oil cylinder are provided in the oil cylinder. An oil inlet passage capable of communicating with the oil inlet is provided in the B plate, and an oil outlet passage capable of communicating with the oil outlet is provided in the B plate. Regarding the settings of the oil inlet and the oil outlet, the size of the oil inlet should be smaller than that of the oil outlet. For small hydraulic cylinders: the oil inlet can be about 10 mm, and the oil outlet can be about 12 mm. For medium-sized hydraulic cylinders: the oil inlet can be about 25 mm, and the oil outlet can be about 30 mm. For large hydraulic cylinders: the oil inlet can be about 50 mm, and the oil outlet can be about 60 mm. In the double-port design, the inlet and outlet of the hydraulic cylinder are respectively arranged at both ends of the oil cylinder, enabling bidirectional oil inlet and bidirectional oil outlet. This design is applicable to the top cover hydraulic cylinder and is also a common design method. This setting method is beneficial to achieving bidirectional oil inlet and bidirectional oil outlet and improving the working efficiency of the oil cylinder. Moreover, through the settings of the oil inlet and outlet of the oil cylinder and the oil inlet and outlet passages of the B plate, the connection strength between the oil cylinder and the B plate can be further enhanced.

[0013] Further, first connectors connected to the oil inlet and the oil outlet are respectively provided on the outside of the oil cylinder, and second connectors connected to the oil inlet passage and the oil outlet passage are respectively provided in the B plate. The oil inlet and the oil inlet passage are connected through the first connector and the second connector, and the oil outlet and the oil outlet passage are connected through the first connector and the second connector.

[0014] Further, the first connector and the second connector can be connected in a sealed plug-in manner. An oil cylinder fastening bolt for installing the oil cylinder on the B plate is provided on the outside of the oil cylinder; a square iron for connecting with the B plate is provided on the bottom plate.

[0015] Key points to note: The oil cylinder is fixed on the B plate, and the thickness of the B plate limits the stroke of the oil cylinder.

[0016] The oil cylinder connecting column is fixed by screws. The fixed key pin is installed in the thimble bottom plate to drive the thimble plate to move.

[0017] The installation and connection structure of the ejector pin base plate is convenient for maintenance. The fixed key pin insert is fixed on the ejector pin base plate, which is convenient for disassembling and assembling the oil cylinder. During repeated movements, in case of stamping deformation or wear, it is convenient for disassembly, replacement and maintenance.

[0018] The installation and connection structure of the ejector pin plate is convenient for assembly. The cooperation between the ejector pin plate, the fixed key pin and the oil cylinder connection column is simple.

[0019] Compared with the prior art, for the installation and connection structure of the oil cylinder and the ejector pin plate, the oil cylinder connection column is designed with a positioning groove to prevent rotation that may occur during repeated movements, which may cause screw loosening. This anti-rotation method is simpler and more practical than other methods. The installation and connection structure of the ejector pin plate is convenient for maintenance. The key pin insert is fixed on the ejector pin plate, which is convenient for disassembling and assembling the oil cylinder. During repeated movements, in case of stamping deformation or wear, it is convenient for disassembly, replacement and maintenance. The installation and connection structure of the ejector pin plate is convenient for assembly. The cooperation between the ejector pin plate, the fixed key pin and the oil cylinder connection column is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is of Figure 1 a partial sectional structural view of the present utility model;

[0022] Figure 3 is of Figure 2 a further structural view of the present utility model;

[0023] Figure 4 is a schematic structural view of the oil cylinder connection column of the present utility model;

[0024] Figure 5 is of Figure 4 a simple schematic top view structure of the present utility model.

[0025] In the figures: 1. B plate; 2. Oil cylinder; 3. Base plate; 4. Ejector pin base plate; 5. Installation and connection assembly; 6. Oil cylinder connection column; 7. Oil cylinder drive rod; 8. Fixed key pin; 9. Connecting bolt; 10. Annular notch; 11. Positioning groove; 12. Clamping plane; 13. Oil inlet; 14. Oil outlet; 15. First connecting piece; 16. Second connecting piece; 17. Oil inlet channel; 18. Oil outlet channel; 19. Oil cylinder fastening bolt; 20. Square iron; 21. Ejector pin panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] Please refer to Figures 1 to 5, the present utility model provides a technical solution: an installation and connection structure between an oil cylinder and a thimble plate, including a B plate 1. An oil cylinder 2 connected to the B plate 1 is provided in the B plate 1. An oil inlet 13 communicating with the inside of the oil cylinder 2 is provided in the oil cylinder 2. An oil outlet 14 communicating with the inside of the oil cylinder 2 is provided in the oil cylinder 2. An oil inlet passage 17 capable of communicating with the oil inlet 13 is provided in the B plate 1. An oil outlet passage 18 capable of communicating with the oil outlet 14 is provided in the B plate 1. First connectors 15 connected to the oil inlet 13 and the oil outlet 14 are respectively provided outside the oil cylinder 2. Second connectors 16 connected to the oil inlet passage 17 and the oil outlet passage 18 are respectively provided in the B plate 1. The oil inlet 13 and the oil inlet passage 17 are communicated through the first connector 15 and the second connector 16. The oil outlet 14 and the oil outlet passage 18 are communicated through the first connector 15 and the second connector 16. The first connector 15 and the second connector 16 can be connected in a sealed plugging manner. An oil cylinder fastening bolt 19 for installing the oil cylinder 2 in the B plate 1 is provided outside the oil cylinder 2; a square iron 20 for connecting to the B plate 1 is provided on the bottom plate 3. The bottom plate 3 is provided below the B plate 1. A thimble bottom plate 4 is provided on the bottom plate 3. An installation and connection assembly 5 for connecting the thimble bottom plate 4 and the oil cylinder 2 is provided between the thimble bottom plate 4 and the oil cylinder 2; the installation and connection assembly 5 includes an oil cylinder connection column 6. The oil cylinder connection column 6 is installed in the thimble bottom plate 4. An oil cylinder driving rod 7 is provided at the output end of the oil cylinder 2. The oil cylinder driving rod 7 is connected to the oil cylinder connection column 6. A fixing key pin 8 capable of locking and fixing the oil cylinder connection column 6 is provided in the thimble bottom plate 4. A connection bolt 9 connected to the oil cylinder connection column 6 is provided inside the oil cylinder connection column 6. The connection bolt 9 can be inserted into the oil cylinder driving rod 7. The bottom end of the oil cylinder driving rod 7 can be embedded into the inner wall of the top end position of the oil cylinder connection column 6 and close to the connection bolt 9. A positioning groove 11 for locking and limiting the oil cylinder driving rod 7 is further provided in the inner wall of the top end position of the oil cylinder connection column 6 and close to the connection bolt 9. A thimble panel 21 sleeved on the oil cylinder connection column 6 is provided on the thimble bottom plate 4. An internal thread adapted to the connection bolt 9 is provided in the oil cylinder driving rod 7. The cross-sectional shape of the fixing key pin 8 is U-shaped. A notch adapted to the fixing key pin 8 is provided in the thimble bottom plate 4. An annular notch 10 matching the U-shaped fixing key pin 8 is provided at the bottom end of the oil cylinder connection column 6. The fixing key pin 8 is installed at the annular notch 10 of the fixing key pin 8 and fixed at the notch in the thimble bottom plate 4 by bolts. Clamping planes 12 are further provided on two opposite outer sides of the top end of the fixing key pin 8. The cross-sectional shape of the clamping plane 12 is a square dovetail groove shape.

[0028] All the electrical components appearing in this article are electrically connected to an external main controller and 380V commercial power, and the main controller can be a conventional known device such as a computer for control.

[0029] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. In the case of this example, for those of ordinary skill in the art, the specific meanings of the above terms in this utility model or the utility model can be understood according to specific circumstances.

[0030] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. Installation and connection structure between oil cylinder and ejector plate, including B plate (1), characterized in that: An oil cylinder (2) connected to the B plate (1) is provided in the B plate (1). A bottom plate (3) is provided below the B plate (1). A thimble bottom plate (4) is provided on the bottom plate (3). An installation connection assembly (5) for connecting the thimble bottom plate (4) and the oil cylinder (2) is provided between the thimble bottom plate (4) and the oil cylinder (2). The installation connection assembly (5) includes an oil cylinder connection column (6). The oil cylinder connection column (6) is installed in the thimble bottom plate (4). An oil cylinder driving rod (7) is provided at the output end of the oil cylinder (2). The oil cylinder driving rod (7) is connected to the oil cylinder connection column (6).

2. The installation and connection structure of the oil cylinder and the ejector plate according to claim 1, characterized in that: A fixing key pin (8) capable of locking and fixing the oil cylinder connection column (6) is provided in the thimble bottom plate (4). A connection bolt (9) connected to the oil cylinder connection column (6) is provided inside the oil cylinder connection column (6). The connection bolt (9) can be inserted into the oil cylinder driving rod (7).

3. The installation and connection structure of the oil cylinder and the ejector plate according to claim 2, characterized in that: The bottom end of the oil cylinder driving rod (7) can be embedded into the inner wall of the top end position of the oil cylinder connection column (6) and close to the connection bolt (9). A positioning groove (11) capable of locking and limiting the oil cylinder driving rod (7) is also provided in the inner wall of the top end position of the oil cylinder connection column (6) and close to the connection bolt (9). A thimble panel (21) sleeved with the oil cylinder connection column (6) is provided on the thimble bottom plate (4).

4. The installation and connection structure of the oil cylinder and the ejector plate according to claim 3, characterized in that: Internal threads adapted to the connection bolt (9) are provided in the oil cylinder driving rod (7). The cross-sectional shape of the fixing key pin (8) is U-shaped. A notch adapted to the fixing key pin (8) is provided in the thimble bottom plate (4). An annular notch (10) matching the U-shaped fixing key pin (8) is provided at the bottom end of the oil cylinder connection column (6). The fixing key pin (8) is installed at the annular notch (10) of the fixing key pin (8) and fixed to the notch in the thimble bottom plate (4) by bolts.

5. The installation and connection structure of the oil cylinder and the ejector plate according to claim 4, characterized in that: Clamping planes (12) are further provided on two opposite outer sides of the top end of the fixing key pin (8). The cross-sectional shape of the clamping plane (12) is square dovetail groove-shaped.

6. The installation and connection structure of the oil cylinder and the ejector plate according to claim 1, characterized in that: An oil inlet (13) communicating with the inside of the oil cylinder (2) is provided in the oil cylinder (2). An oil outlet (14) communicating with the inside of the oil cylinder (2) is provided in the oil cylinder (2). An oil inlet channel (17) capable of communicating with the oil inlet (13) is provided in the B plate (1). An oil outlet channel (18) capable of communicating with the oil outlet (14) is provided in the B plate (1).

7. The installation and connection structure of the oil cylinder and the ejector plate according to claim 6, characterized in that: First connectors (15) connected to the oil inlet (13) and the oil outlet (14) are respectively provided outside the oil cylinder (2). Second connectors (16) connected to the oil inlet channel (17) and the oil outlet channel (18) are respectively provided in the B plate (1). The oil inlet (13) and the oil inlet channel (17) are connected and communicated through the first connector (15) and the second connector (16). The oil outlet (14) and the oil outlet channel (18) are connected and communicated through the first connector (15) and the second connector (16).

8. The installation and connection structure of the oil cylinder and the ejector plate according to claim 7, characterized in that: The first connecting member (15) and the second connecting member (16) can be connected in a sealed plugging manner. An oil cylinder fastening bolt (19) capable of mounting the oil cylinder (2) in the B plate (1) is provided outside the oil cylinder (2); a square iron (20) for connecting with the B plate (1) is provided on the bottom plate (3).

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