Ejection device of mold

Abstract

The utility model relates to an ejection device of a mold, which comprises a first ejection block, a second ejection block, a first ejection unit arranged on one side of the first ejection block or the second ejection block, and a second ejection unit arranged between the first ejection block and the second ejection block, the first left limiting block and the first right limiting block are connected with the first fixed mounting block; wherein a first auxiliary ejector block is arranged between the first left limiting block and the first right limiting block, and a first hydraulic ejector rod assembly is arranged on the first auxiliary ejector block; the second ejection unit comprises a second left limiting block connected with the first ejection block, a second right limiting block fixedly connected with the second ejection block, a supporting block connected with the second left limiting block and the second right limiting block, and a second auxiliary ejection block mounted on the supporting block; a second hydraulic ejection rod assembly is arranged on the second auxiliary ejection block; and the two ends and the middle part of the product in the mold cavity can be synchronously ejected, so that the ejection stability of the product from the mold cavity can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of mold structures, in particular to a mold ejection device. Background Art

[0002] The mold ejector is a device used to remove finished products from the mold in industrial production, especially in plastic injection molding, die casting, stamping and other manufacturing processes. The ejector is usually composed of an ejector rod, an ejector plate, a return spring, a guide rod, etc., and can be controlled automatically or manually.

[0003] The main function of the ejector is to push the finished product out of the mold after the mold cools and solidifies. This process is crucial to ensure the perfect molding of the finished product, because if the finished product stays in the mold for too long, it may cause defects such as deformation, stress concentration or deformation due to insufficient cooling.

[0004] The design of the ejector device needs to take into account the adjustment of ejection force and ejection speed to ensure that the finished product will not be damaged during the ejection process. At the same time, the function of the reset spring is to restore the mold to its initial state after the ejection action is completed, preparing for the next injection molding; in addition, the mold ejector device also needs to have a good guide mechanism to ensure the accuracy and stability of the ejection action. The guide mechanism is generally composed of a guide rod and a guide rail, which can effectively prevent lateral or oblique deviation during the ejection process.

[0005] Through understanding of relevant technologies, it is found that the existing mold ejection device has the problem of unstable ejection during use, especially for strip-shaped and special-shaped products. When the ejector rod ejects the product, the product is prone to tilt after being ejected. Utility Model Content

[0006] The utility model aims to solve the defects in the prior art and provide a mold ejection device.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A mold ejection device comprises a first ejection block and a second ejection block arranged below a mold cavity, a first ejection unit arranged on one side of the first ejection block or the second ejection block, and a second ejection unit arranged between the first ejection block and the second ejection block, wherein the first ejection unit comprises a first fixed mounting block fixedly connected to the first ejection block, and a first left limit block and a first right limit block connected to the first fixed mounting block;

[0009] Wherein, a first auxiliary top block is arranged between the first left limit block and the first right limit block, and a first hydraulic push rod assembly is arranged on the first auxiliary top block;

[0010] The second ejection unit includes a second left limit block connected to the first ejection block, a second right limit block fixedly connected to the second ejection block, a support block connected to the second left limit block and the second right limit block, a second auxiliary ejection block installed on the support block, and a second hydraulic ejector assembly is provided on the second auxiliary ejection block.

[0011] Furthermore, the first hydraulic push rod assembly includes a first driving member arranged on the first auxiliary push block, and a first hydraulic rod connected to the first driving member.

[0012] Further, the second hydraulic push rod assembly includes a second driving member arranged on one side of the second auxiliary push block, and a second hydraulic rod connected to the second driving member;

[0013] Wherein, an insertion block is provided on one side of the second driving member, an insertion opening corresponding to the insertion block is provided on one side of the second auxiliary top block, and the insertion block is inserted into the insertion opening.

[0014] Furthermore, the insertion opening is an oblique opening.

[0015] Furthermore, a first fixing handle is connected to one side of the first auxiliary top block, a second fixing handle is connected to one side of the second auxiliary top block, the first fixing handle is embedded in the first top block, and the second fixing handle is embedded in the first top block or the second top block.

[0016] Furthermore, the bottom of the first top block is connected to a first hydraulic cylinder, the bottom of the second top block is connected to a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are installed on the mold base.

[0017] Furthermore, the ends of the first left limiting block and the first right limiting block are provided with limiting flanges, and the limiting flanges are located on one side of the first auxiliary top block and limit the first auxiliary top block.

[0018] Furthermore, the first fixing handle and the first auxiliary top block are integrally formed, and the second fixing handle and the second auxiliary top block are integrally formed.

[0019] Furthermore, the limiting flange is integrally formed with the first left limiting block and the first right limiting block.

[0020] The beneficial effects of the utility model are as follows: when the ejection device provided by the present application is used, the first hydraulic oil cylinder controls the first ejection block to move upward, and the second hydraulic oil cylinder controls the second ejection block to move upward. After reaching a suitable stroke, the first hydraulic ejector rod assembly of the first ejection unit on both sides of the bottom of the mold cavity ejects the two ends of the product in the mold cavity through the first hydraulic rod, and at the same time, the second hydraulic ejector rod assembly of the second ejection unit at the bottom of the mold cavity ejects the middle part of the product in the mold cavity through the second hydraulic rod. In this way, the two ends and the middle part of the product in the mold cavity can be ejected synchronously, so as to ensure the stability of the product being ejected from the mold cavity;

[0021] Moreover, a first fixing handle is connected to one side of the first auxiliary ejector block, the first fixing handle is embedded in the first ejector block, and limiting flanges are provided at the ends of the first left limiting block and the first right limiting block, and the limiting flanges are located on one side of the first auxiliary ejector block and limit the first auxiliary ejector block, so that the first auxiliary ejector block for installing the first hydraulic ejector assembly is convenient for disassembly and assembly, and is also firmly installed, which is convenient for disassembly and assembly and stability in use of the first hydraulic ejector assembly installed thereon;

[0022] In addition, a second fixing handle is connected to one side of the second auxiliary top block, and the second fixing handle is embedded in the first top block or the second top block. The second auxiliary top block for installing the second hydraulic top rod assembly is convenient for disassembly and assembly, and is also firmly installed, which facilitates the disassembly and assembly convenience and stability of use of the second hydraulic top rod assembly installed thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the first ejection unit and the second ejection unit of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the first ejection unit and the second ejection unit of the utility model from another angle. DETAILED DESCRIPTION

[0026] Reference Figures 1 to 3 , a mold ejection device, comprising a first ejection block 1 and a second ejection block 2 arranged below a mold cavity, a first ejection unit 3 arranged on one side of the first ejection block 1 or the second ejection block 2, and a second ejection unit 4 arranged between the first ejection block 1 and the second ejection block 2, wherein the first ejection unit 3 comprises a first fixed mounting block 31 fixedly connected to the first ejection block 1, a first left limit block 32 and a first right limit block 33 connected to the first fixed mounting block 31;

[0027] Among them, a first auxiliary push block 34 is provided between the first left limit block 32 and the first right limit block 33, and a first hydraulic push rod assembly is provided on the first auxiliary push block 34. The first hydraulic push rod assembly includes a first driving member 35 arranged on the first auxiliary push block 34 and a first hydraulic rod 36 connected to the first driving member 35.

[0028] The second ejection unit 4 includes a second left limit block 41 connected to the first ejection block 1, a second right limit block 42 fixedly connected to the second ejection block 2, a support block 43 connected to the second left limit block 41 and the second right limit block 42, a second auxiliary ejection block 44 mounted on the support block 43, a second hydraulic ejector assembly is provided on the second auxiliary ejection block 44, and the second hydraulic ejector assembly includes a second driving member 45 arranged on one side of the second auxiliary ejection block 44, and a second hydraulic rod 46 connected to the second driving member 45;

[0029] Among them, an insertion block 47 is provided on one side of the second driving member 45, and an insertion port 48 corresponding to the insertion block 47 is provided on one side of the second auxiliary top block 44. The insertion block 48 is inserted into the insertion port 47, wherein the insertion port 47 is an oblique port, which can ensure that the second driving member 45 will not be pulled out and detached from the side of the second auxiliary top block 44.

[0030] Furthermore, a first fixing handle 37 is connected to one side of the first auxiliary top block 34 , a second fixing handle 49 is connected to one side of the second auxiliary top block 44 , the first fixing handle 37 is embedded in the first top block 1 , and the second fixing handle 49 is embedded in the first top block 1 or the second top block 2 .

[0031] Furthermore, a first hydraulic cylinder 5 is connected to the bottom of the first top block 1 , and a second hydraulic cylinder 6 is connected to the bottom of the second top block 2 . The first hydraulic cylinder 5 and the second hydraulic cylinder 6 are mounted on a mold base 7 .

[0032] Furthermore, the ends of the first left limit block 32 and the first right limit block 33 are provided with limit flanges 38, which are located on one side of the first auxiliary top block 34 and limit the first auxiliary top block 34 to ensure that the first auxiliary top block 34 is clamped and limited firmly.

[0033] In addition, the first fixing handle 37 is integrally formed with the first auxiliary top block 34 , the second fixing handle 49 is integrally formed with the second auxiliary top block 44 , and the limiting flange 38 is integrally formed with the first left limiting block 32 and the first right limiting block 33 .

[0034] When the ejection device provided by the present application is used, the first hydraulic cylinder 5 controls the first ejection block 1 to move upward, and the second hydraulic cylinder 6 controls the second ejection block 2 to move upward. After reaching the appropriate stroke, the first hydraulic ejector rod assembly of the first ejection unit 3 on both sides of the bottom of the mold cavity ejects the two ends of the product in the mold cavity through the first hydraulic rod 36. At the same time, the second hydraulic ejector rod assembly of the second ejection unit 4 at the bottom of the mold cavity ejects the middle part of the product in the mold cavity through the second hydraulic rod 46. In this way, the two ends and the middle part of the product in the mold cavity can be ejected synchronously, so as to ensure the stability of the product being ejected from the mold cavity.

[0035] Moreover, a first fixing handle 37 is connected to one side of the first auxiliary ejector block 34, and the first fixing handle 37 is embedded in the first ejector block 1. The ends of the first left limit block 32 and the first right limit block 33 are provided with limiting flanges 38, and the limiting flanges 38 are located on one side of the first auxiliary ejector block 34 and limit the first auxiliary ejector block 34. The first auxiliary ejector block 34 for installing the first hydraulic ejector assembly is convenient for disassembly and assembly, and is also firmly installed, which is convenient for disassembly and assembly of the first hydraulic ejector assembly installed thereon and stable in use;

[0036] In addition, a second fixing handle 49 is connected to one side of the second auxiliary top block 44, and the second fixing handle 49 is embedded in the first top block 1 or the second top block 2. The second auxiliary top block 44 for installing the second hydraulic top rod assembly is convenient for disassembly and assembly, and is also firmly installed, which facilitates the convenience of disassembly and assembly and the stability of use of the second hydraulic top rod assembly installed thereon.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mold ejection device, comprising a first ejection block and a second ejection block arranged below a mold cavity, a first ejection unit arranged on one side of the first ejection block or the second ejection block, and a second ejection unit arranged between the first ejection block and the second ejection block, characterized in that: The first ejection unit comprises a first fixed mounting block fixedly connected to the first ejection block, and a first left limit block and a first right limit block connected to the first fixed mounting block; Wherein, a first auxiliary top block is provided between the first left limit block and the first right limit block, and a first hydraulic push rod assembly is provided on the first auxiliary top block; The second ejection unit includes a second left limit block connected to the first ejection block, a second right limit block fixedly connected to the second ejection block, a support block connected to the second left limit block and the second right limit block, and a second auxiliary ejection block installed on the support block, wherein the second auxiliary ejection block is provided with a second hydraulic ejector assembly.

2. A mold ejection device according to claim 1, characterized in that: The first hydraulic jack assembly includes a first driving member arranged on the first auxiliary jack block and a first hydraulic rod connected to the first driving member.

3. A mold ejection device according to claim 1 or 2, characterized in that: The second hydraulic push rod assembly includes a second driving member arranged on one side of the second auxiliary push block, and a second hydraulic rod connected to the second driving member; Wherein, an insertion block is provided on one side of the second driving member, and an insertion opening corresponding to the insertion block is provided on one side of the second auxiliary top block, and the insertion block is inserted into the insertion opening.

4. A mold ejection device according to claim 3, characterized in that: The insertion opening is an oblique opening.

5. The ejection device of a mold according to claim 1, characterized in that: A first fixing handle is connected to one side of the first auxiliary top block, a second fixing handle is connected to one side of the second auxiliary top block, the first fixing handle is embedded in the first top block, and the second fixing handle is embedded in the first top block or the second top block.

6. The ejection device of a mold according to claim 1, characterized in that: The bottom of the first top block is connected to a first hydraulic cylinder, the bottom of the second top block is connected to a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are installed on a mold base.

7. The ejection device of a mold according to claim 1, characterized in that: The ends of the first left limiting block and the first right limiting block are provided with limiting flanges, and the limiting flanges are located on one side of the first auxiliary top block and limit the first auxiliary top block.

8. The ejection device of a mold according to claim 5, characterized in that: The first fixing handle is integrally formed with the first auxiliary top block, and the second fixing handle is integrally formed with the second auxiliary top block.

9. The ejection device of a mold according to claim 7, characterized in that: The limiting flange is integrally formed with the first left limiting block and the first right limiting block.

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