Injection mold convenient to eject

Abstract

The utility model discloses an injection mold convenient to eject, which relates to the technical field of motor noise reduction frame molds, and comprises a bottom plate, an ejection assembly and a cooling assembly, a fixed shell is fixed on the outer side above the bottom plate, a lower plate is fixed on the upper side of the fixed shell, the ejection assembly is arranged above the middle part of the bottom plate, and the cooling assembly is arranged above the middle part of the bottom plate. And the ejection assembly comprises an ejector pin bottom plate, a micro air cylinder, an ejector pin body, an ejection plate and a lower mold, the ejector pin bottom plate is fixedly connected with the bottom plate, the micro air cylinder is installed in the middle of the ejector pin bottom plate, the ejector pin body is connected to the upper side of a piston rod of the micro air cylinder, and the ejection plate is fixed to the top of the ejector pin body. According to the injection mold convenient to eject out, the outer cold water cavity distributed on the outer side of the lower mold body facilitates water cooling of a motor silencing frame subjected to injection molding, so that forming of the motor silencing frame in the mold cavity is promoted, the water-cooling upper mold cover is matched with the lower mold body to form a complete mold cavity, and meanwhile the water-cooling upper mold cover is matched with the outer cold water cavity to facilitate uniform cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of motor silencer frame molds, in particular to an injection mold that is convenient for ejection. Background Art

[0002] The motor silencer frame is one of the important components of the motor. Injection molds are needed in the processing of the motor silencer frame. Injection molds are a tool for producing plastic products; they are also tools that give plastic products complete structures and precise dimensions.

[0003] The existing injection mold for the motor silencer frame is not convenient for uniformly cooling the motor silencer frame during the molding process, and is usually troublesome to demould, which is not conducive to ejecting the material from the molding mold, and has limitations in use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an injection mold that is convenient for ejection is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an injection mold that is convenient for ejection, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold for convenient ejection, comprising a bottom plate, an ejection assembly and a cooling assembly, a fixed shell is fixed on the upper outer side of the bottom plate, and a lower plate is fixed on the upper side of the fixed shell, an ejection assembly is installed on the upper middle part of the bottom plate, and the ejection assembly comprises an ejector bottom plate, a micro cylinder, an ejector body, an ejector plate and a lower mold, the ejector bottom plate is fixedly connected to the bottom plate, and a micro cylinder is installed in the middle of the ejector bottom plate, and the micro cylinder An ejector body is connected to the upper side of the piston rod, and an ejector plate is fixed to the top of the ejector body, a lower mold is arranged above the ejector plate, and the lower mold is embedded in the middle part of the lower plate, and the ejector plate is slidably connected to the lower mold, a cooling assembly is arranged on the inner side of the lower plate, and the cooling assembly comprises an external cooling water cavity, a water injection pipe, a water-cooled upper mold cover and a water inlet pipe, a water injection pipe is connected to the upper side of the external cooling water cavity, the water-cooled upper mold cover is located above the lower mold, and a water inlet pipe is connected to the upper outer side of the water-cooled upper mold cover.

[0007] Furthermore, an upper plate, a diverter plate and a top plate assembly are installed on the upper side of the lower plate in sequence from bottom to top, and a controller is installed on the outer side of the lower plate.

[0008] Furthermore, the top plate assembly includes a panel, a positioning rod, a connecting plate and locking bolts. The positioning rods are fixed at the four corners of the panel, and a connecting plate is installed on the outside of the panel. The upper and lower ends of the connecting plate are respectively connected to the panel and the lower plate by locking bolts.

[0009] Furthermore, the cooling assembly also includes a water outlet pipe, and three water outlet pipes are provided, and the water outlet pipes are connected to the outside of the external cold water cavity.

[0010] Furthermore, a connecting frame is fixed above the middle part of the water-cooled upper mold cover, and the top of the connecting frame is fixedly connected to the panel, an injection nozzle is arranged on the inner side of the connecting frame, and an injection tube is connected below the injection nozzle, and the injection tube passes through the water-cooled upper mold cover and is connected to the membrane cavity of the lower mold.

[0011] Furthermore, two first limit blocks and two second limit blocks are slidably installed around the upper side of the external cooling water chamber, and the first limit blocks and the second limit blocks are both located on the outer side of the lower mold, and bolts are also passed through both sides of the first limit blocks and the second limit blocks.

[0012] The utility model provides an injection mold which is convenient for ejection and has the following beneficial effects:

[0013] The utility model is provided with a cooling component, and an external cooling water cavity distributed on the outer side of the lower mold is convenient for water cooling of the motor silencer frame after injection molding, thereby promoting the molding of the motor silencer frame in the mold cavity, and the water-cooled upper mold cover cooperates with the lower mold to form a complete mold cavity, and water is conveniently injected into the interior of the water-cooled upper mold cover through a water inlet pipe. At the same time, the injection plastic inside the injection molding tube flows through the water-cooled upper mold cover, so that water can be used as a medium to control the temperature of the rubber compound in the flow channel and the gate of the injection molding tube, so that it is always kept below the vulcanization temperature before entering the mold cavity, and it has good plasticity and will not cause vulcanization. At the same time, the water-cooled upper mold cover cooperates with the external cooling water cavity to facilitate uniform cooling.

[0014] The utility model is provided with an ejector assembly, which is convenient for driving the lifting and lowering of the ejector main body and the ejector plate through a micro-cylinder, so that the ejector plate can eject the motor silencer frame formed inside the lower mold, thereby facilitating the discharge of the motor silencer frame after molding; the positioning rod of the panel can be inserted into the corresponding hole groove of the diverter plate to achieve the function of auxiliary positioning; the locking bolt penetrates the panel and the lower plate to facilitate the connection and assembly between the ejector plate assembly and the lower part; and the panel is convenient to disassemble to drive the separation of the connecting frame, the water-cooled upper mold cover and the lower mold, which is convenient for subsequent discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of an injection mold that is convenient for ejection according to the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of an injection mold that is convenient for ejection according to the utility model;

[0017] Figure 3 It is a side view structural schematic diagram of an injection mold for convenient ejection of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of a top view of the cooling component of an injection mold that is convenient for ejection.

[0019] In the figure: 1. bottom plate; 2. fixed shell; 3. lower plate; 4. upper plate; 5. diverter plate; 6. top plate assembly; 601. panel; 602. positioning rod; 603. connecting plate; 604. locking bolt; 7. controller; 8. ejector assembly; 801. ejector bottom plate; 802. micro cylinder; 803. ejector body; 804. ejector plate; 805. lower mold; 9. cooling assembly; 901. external cooling water cavity; 902. water injection pipe; 903. water-cooled upper mold cover; 904. water inlet pipe; 905. water outlet pipe; 10. connecting frame; 11. injection nozzle; 12. injection tube; 13. first limit block; 14. second limit block. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] like Figure 1 As shown, an injection mold for convenient ejection includes a base plate 1, an ejection assembly 8 and a cooling assembly 9, a fixed shell 2 is fixed on the upper outer side of the base plate 1, and a lower plate 3 is fixed on the upper side of the fixed shell 2, an upper plate 4, a diverter plate 5 and a top plate assembly 6 are installed on the upper side of the lower plate 3 from bottom to top, and a controller 7 is installed on the outer side of the lower plate 3; the top plate assembly 6 includes a panel 601, a positioning rod 602, a connecting plate 603 and a locking bolt 604, positioning rods 602 are fixed at the four corners of the panel 601, and a connecting plate 603 is installed on the outer side of the panel 601, and the upper and lower ends of the connecting plate 603 are respectively connected to the panel 601 and the lower plate 3 by locking bolts 604; the positioning rod 602 of the panel 601 can be inserted into the corresponding hole groove of the diverter plate 5 to achieve the function of auxiliary positioning, and the locking bolt 604 penetrates the panel 601 and the lower plate 3 to facilitate the connection and assembly between the top plate assembly 6 and the bottom.

[0022] like Figure 3As shown, an ejector assembly 8 is installed above the middle part of the bottom plate 1, and the ejector assembly 8 includes an ejector bottom plate 801, a micro cylinder 802, an ejector body 803, an ejector plate 804 and a lower mold 805. The ejector bottom plate 801 is fixedly connected to the bottom plate 1, and a micro cylinder 802 is installed in the middle part of the ejector bottom plate 801, the upper side of the piston rod of the micro cylinder 802 is connected to the ejector body 803, and the top of the ejector body 803 is fixed with an ejector plate 804, a lower mold 805 is arranged above the ejector plate 804, and the lower mold 805 is embedded in the middle part of the lower plate 3, and the ejector plate 804 is slidably connected to the lower mold 805; the micro cylinder 802 is convenient to drive the ejector body 803 and the ejector plate 804 to rise and fall, so that the ejector plate 804 can eject the motor silencer frame formed inside the lower mold 805, thereby facilitating the discharge of the motor silencer frame after forming.

[0023] like Figure 2-Figure 4 As shown, a cooling assembly 9 is provided on the inner side of the lower plate 3, and the cooling assembly 9 includes an external cooling water cavity 901, a water injection pipe 902, a water-cooled upper mold cover 903 and a water inlet pipe 904, the upper side of the external cooling water cavity 901 is connected with a water injection pipe 902, the water-cooled upper mold cover 903 is located above the lower mold 805, and the upper outer side of the water-cooled upper mold cover 903 is connected with a water inlet pipe 904; the cooling assembly 9 also includes a water outlet pipe 905, and three water outlet pipes 905 are provided, and the water outlet pipe 905 is connected to the outer side of the external cooling water cavity 901; the external cooling water cavity 901 distributed on the outer side of the lower mold 805 is convenient for water cooling of the motor silencer frame after injection molding, thereby promoting the molding of the motor silencer frame in the mold cavity, and the water injection pipe 902 and the water outlet pipe 905 are convenient for water injection and water discharge inside the external cooling water cavity 901.

[0024] like Figure 2-Figure 3As shown, a connecting frame 10 is fixed on the upper middle part of the water-cooled upper mold cover 903, and the top of the connecting frame 10 is fixedly connected to the panel 601, an injection nozzle 11 is arranged on the inner side of the connecting frame 10, and an injection tube 12 is connected to the lower part of the injection nozzle 11, and the injection tube 12 passes through the water-cooled upper mold cover 903 and is then communicated with the film cavity of the lower mold 805; two first limit blocks 13 and two second limit blocks 14 are respectively installed on the upper four sides of the outer cooling water cavity 901 by sliding, and the first limit blocks 13 and the second limit blocks 14 are both located on the outer side of the lower mold 805, and bolts are also passed through the two sides of the first limit blocks 13 and the second limit blocks 14; the two first limit blocks 13 and the two second limit blocks 14 are used to limit the lower mold 805, and when the lower mold 805 needs to be removed The bolts used for positioning can be removed, and the first limit block 13 and the second limit block 14 can be slid outward, and the water-cooled upper mold cover 903 can cooperate with the lower mold 805 to form a complete mold cavity. The water inlet pipe 904 is used to facilitate water injection into the water-cooled upper mold cover 903. At the same time, the injection plastic inside the injection molding tube 12 flows through the water-cooled upper mold cover 903, so that water can be used as a medium to control the temperature of the rubber compound in the flow channel and the gate of the injection molding tube 12, so that it is always kept below the vulcanization temperature before entering the mold cavity. It has good plasticity and will not cause vulcanization. On the contrary, during demolding, the rubber compound in the flow channel of the injection molding tube 12 still remains in the water-cooled upper mold cover 903, and then is injected into the mold cavity to form a finished product during the next injection, thereby achieving the production purpose of improving product quality performance and saving rubber raw materials and energy.

[0025] In summary, if Figure 1-Figure 4 As shown, when the injection mold convenient for ejection is used, first, the water-cooled upper mold cover 903 can cooperate with the lower mold 805 to form a complete mold cavity, and then the material is injected into the mold cavity through the injection nozzle 11 and the injection tube 12. Before that, water can be injected into the water-cooled upper mold cover 903 through the water inlet pipe 904, and then the injection material inside the injection tube 12 flows through the water-cooled upper mold cover 903, so that water can be used as a medium to control the temperature of the rubber compound in the flow channel and the gate of the injection tube 12, so that it is always kept below the vulcanization temperature before entering the mold cavity, and it has good plasticity and will not cause vulcanization. After the injection molding is completed, water can be injected into the external cold water cavity 901 through the water injection pipe 902, so that the external cold water cavity 901 distributed on the outside of the lower mold 805 can water-cool the motor muffler frame after injection molding, thereby promoting the molding of the motor muffler frame in the mold cavity;

[0026] Then, during the demoulding process, the locking bolts 604 that fix the connecting plate 603 can be removed, and then the panel 601, the connecting frame 10 and the water-cooled upper mold cover 903 can be moved upward, and then the micro cylinder 802 drives the ejector body 803 and the ejector plate 804 to rise and fall, so that the ejector plate 804 can eject the motor silencer frame formed inside the lower mold 805, thereby facilitating the discharge of the motor silencer frame after molding, and during demoulding, the rubber material in the flow channel of the injection tube 12 still remains in the water-cooled upper mold cover 903, and then is injected into the mold cavity to form a finished product during the next injection, thereby achieving the production purpose of improving product quality performance and saving rubber raw materials and energy, and thus completing the use process of the injection mold that is easy to eject.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An injection mold for convenient ejection, comprising a base plate (1), an ejection assembly (8) and a cooling assembly (9), characterized in that: A fixed shell (2) is fixed on the upper outer side of the bottom plate (1), and a lower plate (3) is fixed on the upper side of the fixed shell (2). An ejector assembly (8) is installed on the upper middle part of the bottom plate (1), and the ejector assembly (8) comprises an ejector bottom plate (801), a micro cylinder (802), an ejector body (803), an ejector plate (804) and a lower mold (805). The ejector bottom plate (801) is fixedly connected to the bottom plate (1), and a micro cylinder (802) is installed in the middle of the ejector bottom plate (801). The upper side of the piston rod of the micro cylinder (802) is connected to the ejector body (803), and the top of the ejector body (803) is fixed to the ejector plate (804). 4), a lower mold (805) is arranged above the ejector plate (804), and the lower mold (805) is embedded in the middle of the lower plate (3), and the ejector plate (804) and the lower mold (805) are slidably connected, a cooling assembly (9) is arranged on the inner side of the lower plate (3), and the cooling assembly (9) comprises an external cooling water cavity (901), a water injection pipe (902), a water-cooled upper mold cover (903) and a water inlet pipe (904), the upper side of the external cooling water cavity (901) is connected to the water injection pipe (902), the water-cooled upper mold cover (903) is located above the lower mold (805), and the upper outer side of the water-cooled upper mold cover (903) is connected to the water inlet pipe (904).

2. The injection mold for convenient ejection according to claim 1, characterized in that: An upper plate (4), a diverter plate (5) and a top plate assembly (6) are installed on the upper side of the lower plate (3) in order from bottom to top, and a controller (7) is installed on the outer side of the lower plate (3).

3. The injection mold for convenient ejection according to claim 2, characterized in that: The top plate assembly (6) comprises a panel (601), a positioning rod (602), a connecting plate (603) and a locking bolt (604); the positioning rods (602) are fixed at the four corners of the panel (601), and a connecting plate (603) is installed on the outer side of the panel (601); and the upper and lower ends of the connecting plate (603) are respectively connected to the panel (601) and the lower plate (3) through the locking bolts (604).

4. The injection mold for convenient ejection according to claim 1, characterized in that: The cooling assembly (9) further comprises a water outlet pipe (905), and three water outlet pipes (905) are provided, and the water outlet pipes (905) are connected to the outside of the external cold water cavity (901).

5. The injection mold for convenient ejection according to claim 3, characterized in that: A connecting frame (10) is fixed above the middle part of the water-cooled upper mold cover (903), and the top of the connecting frame (10) is fixedly connected to the panel (601). An injection nozzle (11) is arranged on the inner side of the connecting frame (10), and an injection tube (12) is connected below the injection nozzle (11). The injection tube (12) passes through the water-cooled upper mold cover (903) and is then connected to the membrane cavity of the lower mold (805).

6. The injection mold for convenient ejection according to claim 1, characterized in that: Two first limit blocks (13) and two second limit blocks (14) are respectively installed on the upper four sides of the external cold water chamber (901) by sliding, and the first limit blocks (13) and the second limit blocks (14) are both located on the outer side of the lower mold (805), and bolts are also passed through both sides of the first limit blocks (13) and the second limit blocks (14).

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