Easily-demoulded injection mould for automotive upholstery

Abstract

The utility model provides an easily demoulded injection mould for automotive upholstery, which comprises an upper mould and a lower mould which are arranged up and down, the lower mould comprises a lower mould body, a left frame and a right frame are symmetrically arranged on the left side and the right side outside the lower mould body, and an ejection mechanism is arranged below the lower mould body. The ejection mechanism comprises a base, a lower air cylinder and a plurality of ejection rods, a plurality of vertical cavities matched with the ejection rods are formed in the lower die body, the upper end of each ejection rod enters the corresponding vertical cavity, the top end of each ejection rod and the round hole in the bottom wall of the containing groove are located on the same plane, a plurality of air holes are formed in the bottom wall of the containing groove, and the air holes are communicated with the air holes. A plurality of air channels corresponding to the air holes are formed in the lower die body, and the ejector rod comprises a vertical rod, a connector and an ejector head. The ejection mechanism has the beneficial effects that the product is ejected by rod pushing and pneumatic pushing together, so that the demolding efficiency is improved; when the ejector head of the ejector rod is replaced, a new ejector head is fixed through threads after the ejector head is unscrewed.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and is particularly suitable for an easy-to-demold injection mold for automobile interior decoration parts. Background Art

[0002] Injection molds are important process equipment for producing various industrial products. With the rapid development of the plastics industry, injection molds are widely used in various industries. At present, during the injection molding process, some areas of the finished product are not suitable for being pushed by the ejector, which hinders the demoulding efficiency; because the top of the ejector is in contact with the injection molding material, it is inconvenient to replace it after long-term use. Utility Model Content

[0003] The utility model aims to provide an easy-to-demold injection mold for automobile interior decoration parts, which is convenient for replacing a push rod and demoulding, and improves the quality of finished products. The utility model is particularly suitable for injection molding automobile interior decoration parts.

[0004] The technical solution of the utility model is: an easy-to-release injection mold for automobile interior decoration parts, comprising an upper mold and a lower mold arranged up and down,

[0005] The lower mold comprises a lower mold body, a left frame and a right frame are symmetrically arranged on the left and right sides of the outer side of the lower mold body, an ejection mechanism is arranged below the lower mold body, and the ejection mechanism comprises a base, a lower cylinder, and a plurality of ejector rods. The base is provided with a lower cylinder, and the piston rod of the lower cylinder is connected to the lower movable plate. The left and right ends of the lower movable plate are respectively provided with a lower left hole and a lower right hole, and the lower ends of the lower left rod and the lower right rod are respectively fixed to the left and right ends of the base, and the upper ends thereof respectively pass through the lower left hole and the lower right hole, and are connected to the left and right ends of the lower surface of the lower mold body, and the lower ends of the plurality of ejector rods are fixed to the lower movable plate.

[0006] A placement groove recessed downward is provided at the upper end of the lower mold body, and a plurality of vertical cavities matched with the ejector rods are provided in the lower mold body. The upper end of each vertical cavity is connected with the circular hole corresponding to the bottom wall of the placement groove, and the lower end thereof passes through the lower end of the lower mold body and is connected with the outside world. The upper end of each ejector rod enters the corresponding vertical cavity, and the top end of the ejector rod is on the same plane as the circular hole of the bottom wall of the placement groove.

[0007] The bottom wall of the placement groove is provided with a plurality of air holes, and the lower mold body is provided with a plurality of air channels corresponding to the air holes. The lower mold body is provided with a transverse cavity, and one end is closed, and the other end passes through the side wall of the lower mold body. The lower end of each air channel is connected with the through hole on the transverse cavity, and the transverse cavity passing through the side wall end of the lower mold body is connected to the air source through a pipeline. The pipeline is provided with a solenoid valve and an air pump. The ejector rod includes a vertical rod, a connector, and a mandrel. The lower end of the vertical rod is fixed on the lower movable plate, and the upper end of the vertical rod is provided with a connector. The connector is provided with a built-in groove with a thread, and the lower end of the mandrel is arranged in the built-in groove through a thread.

[0008] The upper mold includes a top plate, an upper cylinder, and an upper mold body. The top plate is arranged on the lower mold body through an upper left rod and an upper right rod. The piston rod of the upper cylinder is connected to the upper movable plate. The lower surface of the upper movable plate is provided with an upper mold body that matches the lower mold body.

[0009] Preferably, the transverse cavity is arranged at the front side of each vertical cavity.

[0010] Preferably, a first spring and a second spring are sleeved on the outer sides of the lower left rod and the lower right rod between the lower movable plate and the base.

[0011] Preferably, a third spring and a fourth spring are sleeved on the outer sides of the upper left rod and the upper right rod between the upper movable plate and the top plate.

[0012] Preferably, a feed port is provided on the rear side of the upper mold body.

[0013] The advantages and positive effects of the utility model are as follows: due to the adoption of the above technical scheme, the ejector rod pushes together with the pneumatic push to eject the product, thereby improving the demoulding efficiency; when replacing the ejector head, it is only necessary to unscrew the ejector head and then fix the new ejector head through the thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the push rod.

[0016] In the figure:

[0017] 1. Lower mold body 2. Left frame 3. Base

[0018] 4. Lower cylinder 5. Ejector rod 6. Lower moving plate

[0019] 7. Lower left rod 8. Placement slot 9. Horizontal cavity

[0020] 10. Air source 11. Vertical rod 12. Connector

[0021] 13. Top head 14. Top plate 15. Upper cylinder

[0022] 16. Upper mold body 17. Upper moving plate 18. First spring DETAILED DESCRIPTION

[0023] like Figure 1 , 2 As shown, the technical solution of the utility model is an easy-to-release injection mold for automobile interior decoration parts, comprising an upper mold and a lower mold arranged up and down.

[0024] The lower mold comprises a lower mold body 1, and a left frame 2 and a right frame are symmetrically arranged on the left and right sides of the lower mold body 1. An ejection mechanism is arranged below the lower mold body 1, and the ejection mechanism comprises a base 3, a lower cylinder 4, and a plurality of ejector rods 5. The base 3 is provided with a lower cylinder 4, and the piston rod of the lower cylinder 4 is connected to a lower movable plate 6. The left and right ends of the lower movable plate 6 are respectively provided with a lower left hole and a lower right hole. The lower ends of the lower left rod 7 and the lower right rod are respectively fixed to the left and right ends of the base 3, and their upper ends respectively pass through the lower left hole and the lower right hole, and are connected to the left and right ends of the lower surface of the lower mold body 1. The lower ends of the plurality of ejector rods 5 are fixed to the lower movable plate 6.

[0025] A placement groove 8 recessed downward is provided at the upper end of the lower mold body 1, and a plurality of vertical cavities cooperating with the ejector rod 5 are provided in the lower mold body 1. The upper end of each vertical cavity is connected with the circular hole corresponding to the bottom wall of the placement groove 8, and the lower end thereof passes through the lower end of the lower mold body 1 and is connected with the outside. The upper end of each ejector rod 5 enters into the corresponding vertical cavity, and the top end of the ejector rod 5 is on the same plane as the circular hole on the bottom wall of the placement groove 8.

[0026] The bottom wall of the placement groove 8 is provided with a plurality of air holes, and a plurality of air channels corresponding to the air holes are provided in the lower mold body 1. A transverse cavity 9 is provided in the lower mold body 1, and one end is closed, and the other end passes through the side wall of the lower mold body 1. The lower end of each air channel is connected with the through hole on the transverse cavity 9, and the transverse cavity 9 passing through the side wall end of the lower mold body 1 is connected to the air source 10 through a pipeline. The pipeline is provided with a solenoid valve and an air pump (the solenoid valve and the air pump are not drawn in the figure).

[0027] The mandrel 5 comprises a vertical rod 11, a connector 12 and a top head 13. The lower end of the vertical rod 11 is fixed on the lower movable plate 6. The upper end of the vertical rod 11 is provided with a connector 12. The connector 12 is provided with a built-in groove with a thread. The lower end of the top head 13 is arranged in the built-in groove through a thread. The top head can be replaced each time to maintain the mandrel.

[0028] The upper mold includes a top plate 14, an upper cylinder 15, and an upper mold body 16. The top plate 14 is arranged on the lower mold body 1 through an upper left rod and an upper right rod. The piston rod of the upper cylinder 15 is connected to an upper movable plate 17. The lower surface of the upper movable plate 17 is provided with an upper mold body 16 that matches the lower mold body 1.

[0029] In this embodiment, the transverse cavity 9 is arranged at the front side of each vertical cavity.

[0030] In this embodiment, a first spring 18 and a second spring are sleeved on the outer sides of the lower left rod 7 and the lower right rod between the lower movable plate 6 and the base 3 .

[0031] In this embodiment, a third spring and a fourth spring are sleeved on the outer sides of the upper left rod and the upper right rod between the upper movable plate 17 and the top plate 14 .

[0032] In this embodiment, a feed port is provided on the rear side of the upper mold body 16 .

[0033] The working process and principle of this example: After the mold is formed, when demoulding is required, the lower cylinder 4 is started and the air intake of the air pump is increased, and the solenoid valve is started to realize the double push of air push and push of the ejector 5, so as to improve the demoulding efficiency of the product. In addition, the positions of the air holes and round holes are set in advance according to the actual situation of the product; when the top of the ejector 5 needs to be replaced, it is only necessary to push the top. When demoulding is not performed, the air pump will fill the airway with gas.

[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An easy-to-release injection mold for automotive interior parts, characterized in that: The invention comprises an upper mold and a lower mold which are arranged up and down, the lower mold comprises a lower mold body, a left frame and a right frame are symmetrically arranged on the left and right sides of the outer side of the lower mold body, an ejection mechanism is arranged below the lower mold body, the ejection mechanism comprises a base, a lower cylinder and a plurality of ejector rods, a lower cylinder is arranged on the base, a piston rod of the lower cylinder is connected to a lower movable plate, a lower left hole and a lower right hole are arranged on the left and right ends of the lower movable plate respectively, the lower ends of the lower left rod and the lower right rod are respectively fixed on the left and right ends of the base, and the upper ends thereof pass through the lower left hole and the lower right hole respectively, and are connected to the left and right ends of the lower surface of the lower mold body, the lower ends of the plurality of ejector rods are fixed on the lower movable plate, a placement groove which is recessed downward is arranged on the upper end of the lower mold body, a plurality of vertical cavities which match the ejector rods are arranged in the lower mold body, the upper end of each vertical cavity is connected to the circular hole corresponding to the bottom wall of the placement groove, the lower end thereof passes through the lower end of the lower mold body and is connected to the outside world, the upper end of each ejector rod enters into the corresponding vertical cavity, and the top end of the ejector rod is on the same plane as the circular hole on the bottom wall of the placement groove, The bottom wall of the placement groove is provided with a plurality of air holes, and the lower mold body is provided with a plurality of air channels corresponding to the air holes. The lower mold body is provided with a transverse cavity, and one end is closed, and the other end passes through the side wall of the lower mold body. The lower end of each air channel is connected with the through hole on the transverse cavity, and the transverse cavity passing through the side wall end of the lower mold body is connected to the air source through a pipeline. The pipeline is provided with a solenoid valve and an air pump. The ejector rod includes a vertical rod, a connector, and a mandrel. The lower end of the vertical rod is fixed on the lower movable plate, and the upper end of the vertical rod is provided with a connector. The connector is provided with a built-in groove with a thread, and the lower end of the mandrel is arranged in the built-in groove through a thread. The upper mold includes a top plate, an upper cylinder, and an upper mold body. The top plate is arranged on the lower mold body through an upper left rod and an upper right rod. The piston rod of the upper cylinder is connected to the upper movable plate. The lower surface of the upper movable plate is provided with an upper mold body that matches the lower mold body.

2. The easy-to-release injection mold for automobile interior decoration parts according to claim 1, characterized in that: The transverse cavity is arranged on the front side of each vertical cavity.

3. The easy-to-release injection mold for automobile interior decoration parts according to claim 1, characterized in that: A first spring and a second spring are sleeved on the outer sides of the lower left rod and the lower right rod between the lower moving plate and the base.

4. The easy-to-release injection mold for automobile interior decoration parts according to claim 1, characterized in that: A third spring and a fourth spring are sleeved on the outer sides of the upper left rod and the upper right rod between the upper moving plate and the top plate.

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