Injection mold and injection molding method for preparing plastic products

Abstract

The present invention discloses an injection mold and an injection molding method for preparing plastic products, a lower mold and an upper mold, the upper end of the upper mold is fixedly installed with an injection port, the upper end of the lower mold is provided with a mold cavity, a fixed plate is fixedly installed on both sides of the left and right sides of the lower mold, a cylinder is fixedly installed on the upper ends of the two fixed plates, an adjustment plate is fixedly installed on the output ends of the two cylinders, a push plate is movably connected to the bottom of the inner cavity of the mold cavity, a rotating shaft is fixedly installed on the lower end of the push plate, a motor is fixedly installed on the lower end of the adjustment plate, and the motor and the rotating shaft are fixedly connected, aiming to solve the problem that it is difficult to demold the plastic product after injection molding. The key points of the technical solution are: an injection mold and an injection molding method for preparing plastic products. The present invention can greatly shorten the production cycle and improve production efficiency through the automated demolding process.

Description

Technical Field

[0001] The invention relates to an injection mold for preparing a plastic product, and more specifically, to an injection mold and an injection molding method for preparing a plastic product. Background Art

[0002] Injection mold refers to a mold used in the injection molding process. The plastic material is melted by heating, then injected into the mold cavity, cooled and formed, and finally the desired plastic product is obtained. Injection molds usually consist of two parts: a fixed mold and a movable mold. After the molds are closed, a mold cavity is formed. The plastic material is injected into the mold cavity under the pressure of the injection molding machine. After cooling and solidification, the mold can be opened to take out the finished product.

[0003] After injection molding, the plastic products have a certain adhesion force, making it difficult to demould the finished products. The demoulding difficulty will increase the production cycle and reduce production efficiency.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an injection mold and an injection molding method for preparing plastic products. By driving the push plate to rotate through a motor, the contact surface between the plastic product and the mold can produce relative movement, and this movement helps to reduce the friction resistance between them. In the demolding process, friction resistance is one of the main factors that lead to demolding difficulties. By reducing friction resistance, the plastic product can be more easily separated from the mold, thereby improving the efficiency and success rate of demolding. By starting the cylinder to drive the adjustment plate to move upward, the push plate is pushed upward to drive the plastic molded product to move upward for demolding. The pushing action of the cylinder provides additional power for demolding, which helps to overcome the adhesion between the mold and the plastic part, making it easier to separate the plastic part from the mold. The automated demolding process can greatly shorten the production cycle and improve production efficiency.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an injection mold for preparing plastic products, comprising a lower mold and an upper mold, the upper end of the upper mold is fixedly installed with an injection port, and the upper end of the lower mold is provided with a mold cavity, characterized in that: a fixed plate is fixedly installed on the left and right sides of the lower mold, a cylinder is fixedly installed on the upper ends of the two fixed plates, an adjustment plate is fixedly installed on the output ends of the two cylinders, a push plate is movably connected to the bottom of the inner cavity of the mold cavity, a rotating shaft is fixedly installed on the lower end of the push plate, a motor is fixedly installed on the lower end of the adjustment plate, and the motor and the rotating shaft are fixedly connected.

[0007] The present invention is further configured as follows: four supporting legs are fixedly mounted on the lower end of the lower die.

[0008] The present invention is further configured as follows: four guide rods are fixedly mounted on the lower end of the upper die, and the guide rods are movably interlaced and connected with the lower die.

[0009] The present invention is further configured such that: the adjustment plate and the lower die maintain a parallel position relationship.

[0010] The present invention is further configured such that: the diameter of the push plate is the same as the inner diameter of the mold cavity.

[0011] The present invention is further configured such that: the injection port is communicated with the mold cavity.

[0012] An injection mold and an injection molding method for preparing a plastic product, comprising the following steps:

[0013] S1, closing the mold by the lower mold and the upper mold, and injecting the molten plastic molding liquid into the mold cavity of the lower mold through the injection port until the mold cavity is filled;

[0014] S2, the molten plastic is cooled and solidified in the lower mold cavity to form a plastic product;

[0015] S3. When the plastic product is cooled and solidified, the push plate and the plastic product are rotated by starting the motor, and the adjustment plate and the push plate are driven upward by starting the cylinder to push the plastic product upward, thereby ejecting the plastic product from the lower mold cavity.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. By driving the push plate to rotate through the motor, the contact surface between the plastic product and the mold can produce relative movement, which helps to reduce the friction resistance between them. In the demoulding process, friction resistance is one of the main factors that lead to demoulding difficulties. By reducing friction resistance, the plastic product can be separated from the mold more easily, thereby improving the efficiency and success rate of demoulding. By starting the cylinder to drive the adjustment plate to move upward, the push plate is pushed upward to drive the plastic molded product to move upward for demoulding. The pushing action of the cylinder provides additional power for demoulding, which helps to overcome the adhesion between the mold and the plastic part, making it easier to separate the plastic part from the mold. The automated demoulding process can greatly shorten the production cycle and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a top view of the three-dimensional structure of the present invention;

[0020] Figure 3It is a schematic diagram of the three-dimensional structure of the pusher tray of the present invention.

[0021] In the figure: 1. lower mold; 2. upper mold; 3. injection port; 4. mold cavity; 5. fixed plate; 6. cylinder; 7. adjustment plate; 8. push plate; 9. rotating shaft; 10. motor; 11. support leg; 12. guide rod. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention is described in detail below in conjunction with the accompanying drawings.

[0026] An injection mold and injection molding method for preparing plastic products, such as Figures 1 to 3 As shown, it includes a lower mold 1 and an upper mold 2, an injection port 3 is fixedly installed on the upper end of the upper mold 2, a mold cavity 4 is opened on the upper end of the lower mold 1, the injection port 3 and the mold cavity 4 are communicated, a fixed plate 5 is fixedly installed on the left and right sides of the lower mold 1, a cylinder 6 is fixedly installed on the upper end of the two fixed plates 5, and an adjusting plate 7 is fixedly installed on the output ends of the two cylinders 6, and the adjusting plate 7 and the lower mold 1 maintain a parallel position relationship, a push plate 8 is movably connected to the bottom of the inner cavity of the mold cavity 4, the diameter of the push plate 8 is the same as the inner diameter of the mold cavity 4, a rotating shaft 9 is fixedly installed on the lower end of the push plate 8, and a motor 10 is fixedly installed on the lower end of the adjusting plate 7, and the motor 10 and the rotating shaft 9 are fixedly connected.

[0027] like Figure 1As shown, four supporting legs 11 are fixedly installed at the lower end of the lower mold 1, and the supporting legs 11 are provided to support and stabilize the mold.

[0028] like Figure 1 As shown, four guide rods 12 are fixedly installed at the lower end of the upper mold 2, and the guide rods 12 and the lower mold 1 are movably connected and interlaced. The guide rods 12 guide the upper mold 2 so that the upper mold 2 can accurately fit the lower mold 1.

[0029] An injection mold and an injection molding method for preparing a plastic product, comprising the following steps:

[0030] Step 1: Clamp the lower mold 1 and the upper mold 2, and inject the molten plastic molding liquid into the mold cavity 4 of the lower mold 1 through the injection port 3 until the mold cavity 4 is filled;

[0031] Step 2: The molten plastic is cooled and solidified in the mold cavity 4 of the lower mold 1 to form a plastic product;

[0032] Step 3, when the plastic product is cooled and solidified, the push plate 8 and the plastic product are rotated by starting the motor 10, and the adjustment plate 7 and the push plate 8 are driven upward by starting the cylinder 6 to push the plastic product upward, thereby ejecting the plastic product from the mold cavity 4 of the lower mold 1.

[0033] Working principle: The lower mold 1 and the upper mold 2 are closed, and the molten plastic molding liquid is injected into the mold cavity 4 of the lower mold through the injection port 3 until the mold cavity 4 is filled. The molten plastic is cooled and solidified in the mold cavity 4 of the lower mold 1 to form a plastic product. When the plastic product is cooled and solidified, the motor 10 drives the rotating shaft 9 to rotate, thereby driving the push plate 8 to rotate, so that the contact surface between the plastic product and the mold can produce relative movement, which helps to reduce the friction resistance between them. In the demolding process, friction resistance is one of the main factors that lead to demolding difficulties. By reducing friction resistance, the plastic product can be separated from the mold more easily, thereby improving the efficiency and success rate of demolding. By starting the cylinder 6 to drive the adjustment plate 7 to move upward, the push plate 8 is pushed upward to drive the plastic molded product to move upward for demolding. The driving action of the cylinder 6 provides additional power for demolding, which helps to overcome the adhesion between the mold and the plastic part, making it easier to separate the plastic part from the mold. The automated demolding process can greatly shorten the production cycle and improve production efficiency.

[0034] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An injection mold for preparing a plastic product, comprising a lower mold (1) and an upper mold (2), wherein an injection port (3) is fixedly mounted at the upper end of the upper mold (2), and a mold cavity (4) is formed at the upper end of the lower mold (1), characterized in that: A fixing plate (5) is fixedly mounted on both left and right sides of the lower mold (1), a cylinder (6) is fixedly mounted on the upper ends of the two fixing plates (5), an adjusting plate (7) is fixedly mounted on the output ends of the two cylinders (6), a pushing plate (8) is movably connected to the bottom of the inner cavity of the mold cavity (4), a rotating shaft (9) is fixedly mounted on the lower end of the pushing plate (8), a motor (10) is fixedly mounted on the lower end of the adjusting plate (7), and the motor (10) and the rotating shaft (9) are fixedly connected.

2. An injection mold for preparing a plastic product according to claim 1, characterized in that: Four supporting legs (11) are fixedly mounted on the lower end of the lower mold (1).

3. The injection mold for preparing a plastic product according to claim 1, characterized in that: Four guide rods (12) are fixedly mounted on the lower end of the upper die (2), and the guide rods (12) and the lower die (1) are movably connected in an interlaced manner.

4. The injection mold for preparing a plastic product according to claim 1, characterized in that: The adjustment plate (7) and the lower die (1) maintain a parallel position relationship.

5. The injection mold for preparing a plastic product according to claim 1, characterized in that: The diameter of the push plate (8) is the same as the inner diameter of the mold cavity (4).

6. The injection mold for preparing a plastic product according to claim 1, characterized in that: The injection port (3) and the mold cavity (4) are connected.

7. An injection mold and an injection molding method for preparing a plastic product, characterized in that: An injection mold for preparing a plastic product according to any one of claims 1 to 6 is used, comprising the following steps: S1, closing the lower mold (1) and the upper mold (2), and injecting molten plastic molding liquid into the mold cavity (4) of the lower mold (1) through the injection port (3) until the mold cavity (4) is filled; S2, the molten plastic is cooled and solidified in the mold cavity (4) of the lower mold (1) to form a plastic product; S3. When the plastic product is cooled and solidified, the push plate (8) and the plastic product are driven to rotate by starting the motor (10), and the adjusting plate (7) and the push plate (8) are driven to move upward by starting the cylinder (6), thereby pushing the plastic product upward, thereby ejecting the plastic product from the mold cavity (4) of the lower mold (1).

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