Injection mold ejection mechanism

Abstract

The utility model relates to the technical field of injection mold production, in particular to an injection mold ejection mechanism which comprises a mold base, a pushing plate, a telescopic rod, a concave mold plate, an ejection plate and a buffer spring. The pushing plate is arranged at the output end of the die base, the top plate is attached to one face of the pushing plate, the sliding end of the telescopic rod is slidably connected to the pushing plate, the other end of the telescopic rod is fixedly connected with the female die plate through the top plate, two second ejector rods are fixedly connected to one side of the pushing plate, and the second ejector rods are inserted into the top plate to slide. One end of the rotary fixing rod is separated from the interior of the connector, so that the second ejector rod is separated from one end of the first ejector rod, the other end of the second ejector rod is rotationally connected with the third ejector rod, the angle of the end, in butt joint with the second ejector rod, of the first ejector rod can be rotated, and when the angle is proper, the buffer spring can be taken down from the first ejector rod; the multiple ejector rods do not need to be detached from the mold, and the buffer springs are more convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold production, in particular to an injection mold ejection mechanism. Background Art

[0002] An injection mold is a tool for producing plastic products. During the injection production process, after the molded part is cooled and shaped, it is necessary to eject the molded product from the mold cavity of the fixed mold of the injection mold through an ejection mechanism to facilitate demolding of the molded part.

[0003] At present, when the product is cooled and formed in the flat injection mold, when the concave mold plate moves back, the mold seat pushes the top plate to slide, so that the set ejector rod passes through the concave mold plate to eject the product. When the concave mold plate and the convex mold plate are docked for injection molding, the top plate pushes the ejector rod to reset through the spring set between the concave mold plate. If the elastic function of the spring between the existing top plate and the concave mold plate decreases after long-term use, in order to ensure that the reset of the ejector rod is not affected, the spring needs to be replaced regularly. However, when replacing the spring of the existing injection mold, the ejector rod used to support the spring needs to be removed from the top plate and the mold at the same time, which is very troublesome. Utility Model Content

[0004] The utility model aims to provide an injection mold ejection mechanism to solve the problem that when replacing the spring of the existing injection mold mentioned in the background technology, the ejector rod used to support the spring needs to be removed from the top plate and the mold at the same time, which is very troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a mold base, a pushing plate, a telescopic rod, a concave mold plate, a top plate, and a buffer spring; the pushing plate is arranged on the output end of the mold base, the top plate is attached to one surface of the pushing plate, one sliding end of the telescopic rod is slidably connected to the pushing plate, and the other end of the telescopic rod is fixedly connected to the concave mold plate through the top plate, two second push rods are fixedly connected to one side of the pushing plate, and the second push rods are inserted in the top plate to slide, the other ends of the two second push rods are respectively detachably connected to the first push rod, the other end of the first push rod is rotatably connected to the third push rod, the other end of the third push rod is inserted in the concave mold plate, and the buffer spring is sleeved on the outer walls of the first push rod, the second push rod, and the third push rod.

[0006] Preferably, one end of the second push rod is fixedly connected to a connector, one end of the connector is inserted into the concave part of the first push rod, two fixing rods are inserted into the outer wall of the first push rod, the outer wall of the fixing rod is fixedly connected to a protrusion, and the protrusion is located inside the connector.

[0007] Preferably, the outer wall of the connector is provided with a through groove matching the protrusion, one end of the protrusion extends into the connector through the through groove, a circular groove is provided inside the connector, the circular groove is connected to the lower end of the through groove, and the connector is located in the circular groove.

[0008] Preferably, a rotating head is provided at the other end of the first push rod, a rotating groove matching the rotating head is formed at one end of the third push rod, and one end of the rotating head is inserted into the rotating groove.

[0009] Preferably, a hidden plug interface is provided on the outer wall of the first push rod, the upper end of the fixing rod is located in the hidden plug interface, and a gap is left between the upper width of the hidden plug interface and the upper end of the fixing rod.

[0010] Preferably, a rotating piece is provided at the upper end of the fixing rod, and the distance between the connecting head and the first top rod portion is greater than the distance at which the lower end of the fixing rod is detached.

[0011] Compared with the prior art, the beneficial effects of the utility model are: one end of the rotating fixed rod is disengaged from the interior of the connecting head, so that the second push rod is separated from one end of the first push rod, and the other end of the second push rod is rotatably connected to the third push rod, so that the angle of the end where the first push rod and the second push rod are connected can be rotated. When the angle is appropriate, the buffer spring can be removed from the first push rod, and there is no need to remove multiple push rods from the mold separately, which makes it more convenient to replace the buffer spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0014] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure;

[0015] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of B in FIG.

[0016] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing rod and the connecting head of the utility model.

[0017] In the figure: 1. mold base; 2. push plate; 3. top plate; 5. telescopic rod; 6. first top rod; 7. buffer spring; 8. concave mold plate; 9. second top rod; 10. third top rod; 12. fixed rod; 13. convex fastener; 14. through-mouth groove; 15. circular groove; 16. rotating head; 17. hidden plug interface; 91. connecting head; 121. rotating piece. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figure 1-5 , as shown in the figure: This embodiment is a preferred implementation scheme in the present technical scheme, an injection mold ejection mechanism, including a mold base 1, a push plate 2, a telescopic rod 5, a concave mold plate 8, a top plate 3, and a buffer spring 7; the push plate 2 is arranged on the output end of the mold base 1, and the top plate 3 is attached to one surface of the push plate 2, one sliding end of the telescopic rod 5 is slidably connected to the push plate 2, and the other end of the telescopic rod 5 is fixedly connected to the concave mold plate 8 through the top plate 3, one side of the push plate 2 is fixedly connected to two second ejector rods 9, and the second ejector rods 9 are inserted in the top plate 3 to slide, and the other ends of the two second ejector rods 9 are respectively detachably connected to the first ejector rod 6, the other end of the first ejector rod 6 is rotatably connected to the third ejector rod 10, the other end of the third ejector rod 10 is inserted in the concave mold plate 8, and the buffer spring 7 is sleeved on the outer walls of the first ejector rod 6, the second ejector rod 9, and the third ejector rod 10.

[0021] like Figure 1 , 3 As shown, one end of the second push rod 9 is fixedly connected to a connecting head 91, one end of the connecting head 91 is inserted into the concave part of the first push rod 6, two fixing rods 12 are inserted into the outer wall of the first push rod 6, the outer wall of the fixing rod 12 is fixedly connected to a protrusion 13, the protrusion 13 is located inside the connecting head 91, the connecting head 91 provided at one end of the second push rod 9 is inserted into the inner side of one end of the first push rod 6, one end of the fixing rod 12 passes through the first push rod 6 and is inserted into the inside of the connecting head 91, and the protrusion 13 provided on the outer wall of the fixing rod 12 is limited in the inside of the connecting head 91, so that the first push rod 6 and the second push rod 9 are fixedly connected.

[0022] like Figure 1 , 5 As shown, the outer wall of the connecting head 91 is provided with a through groove 14 matching the protrusion 13, one end of the protrusion 13 extends into the interior of the connecting head 91 through the through groove 14, and a circular groove 15 is provided inside the connecting head 91, the circular groove 15 is connected with the lower end of the through groove 14, the connecting head 91 is located in the circular groove 15, and the through groove 14 provided in the connecting head 91 is used to fix the rod 12 and the protrusion 13 extending into the interior of the connecting head 91, and the circular groove 15 is used to rotate the protrusion 13 into the interior of the connecting head 91.

[0023] like Figure 2 , 3 As shown, a rotating head 16 is provided at the other end of the first push rod 6, and a rotating groove (marked in the figure) matching the rotating head 16 is opened at one end of the third push rod 10, and one end of the rotating head 16 is inserted into the rotating groove. The rotating groove opened by the third push rod 10 is used for the rotating head 16 to be inserted into the inside of the third push rod 10 for rotation.

[0024] like Figure 2 , 3 As shown, a hidden plug interface 17 is opened on the outer wall of the first push rod 6, and the upper end of the fixing rod 12 is located in the hidden plug interface 17. The upper width of the hidden plug interface 17 leaves a gap with the upper end of the fixing rod 12. The hidden plug interface 17 opened on the outer wall of the first push rod 6 is used to hide the fixing rod 12 and will not affect the movement of the buffer spring 7.

[0025] like Figure 1 , 2 As shown, a rotating piece 121 is provided at the upper end of the fixing rod 12, and the distance between the connecting head 91 and the first push rod 6 is greater than the distance at which the lower end of the fixing rod 12 is separated.

[0026] In this embodiment, first install all the components. When the spring needs to be replaced, push one end of the spring located at the second push rod 9 to the position of the first connecting push rod, rotate the fixing rod 12 so that the protrusion 13 provided on the fixing rod 12 is rotated to the position of the through groove 14, and pull it outward to separate one end of the fixing rod 12 from the interior of the connecting head 91, so that the second push rod 9 is separated from one end of the first push rod 6. By rotating the other end of the second push rod 9 with the third push rod 10, the angle of the end of the first push rod 6 that is connected to the second push rod 9 can be rotated. When the angle is appropriate, the buffer spring 7 can be removed from the first push rod 6, and there is no need to remove multiple push rods from the mold separately.

[0027] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An injection mold ejection mechanism, comprising a mold base (1), a push plate (2), a telescopic rod (5), a concave mold plate (8), a top plate (3), and a buffer spring (7); the push plate (2) is arranged on the output end of the mold base (1), the top plate (3) is attached to one surface of the push plate (2), one sliding end of the telescopic rod (5) is slidably connected to the push plate (2), and the other end of the telescopic rod (5) is fixedly connected to the concave mold plate (8) through the top plate (3), characterized in that: Two second push rods (9) are fixedly connected to one side of the push plate (2), and the second push rods (9) are inserted into the inside of the top plate (3) for sliding, and the other ends of the two second push rods (9) are respectively detachably connected to the first push rod (6), and the other end of the first push rod (6) is rotatably connected to the third push rod (10), and the other end of the third push rod (10) is inserted into the inside of the concave template (8), and the buffer spring (7) is sleeved on the outer walls of the first push rod (6), the second push rod (9), and the third push rod (10).

2. The injection mold ejection mechanism according to claim 1, characterized in that: One end of the second push rod (9) is fixedly connected to a connector (91), one end of the connector (91) is plugged into a concave portion of the first push rod (6), two fixing rods (12) are plugged into the outer wall of the first push rod (6), the outer wall of the fixing rod (12) is fixedly connected to a protrusion (13), and the protrusion (13) is located inside the connector (91).

3. The injection mold ejection mechanism according to claim 2, characterized in that: The outer wall of the connector (91) is provided with a through-groove (14) matching the protrusion (13); one end of the protrusion (13) extends into the interior of the connector (91) through the through-groove (14); a circular groove (15) is provided inside the connector (91); the circular groove (15) is communicated with the lower end of the through-groove (14); and the connector (91) is located in the circular groove (15).

4. The injection mold ejection mechanism according to claim 2, characterized in that: The other end of the first push rod (6) is provided with a rotating head (16), one end of the third push rod (10) is provided with a rotating groove matching the rotating head (16), and one end of the rotating head (16) is inserted into the rotating groove.

5. The injection mold ejection mechanism according to claim 2, characterized in that: The outer wall of the first push rod (6) is provided with a hidden plug-in interface (17), the upper end of the fixing rod (12) is located in the hidden plug-in interface (17), and a gap is left between the upper width of the hidden plug-in interface (17) and the upper end of the fixing rod (12).

6. The injection mold ejection mechanism according to claim 2, characterized in that: The upper end of the fixing rod (12) is provided with a rotating piece (121), and the distance between the connecting head (91) and the first top rod (6) is greater than the distance at which the lower end of the fixing rod (12) is separated.

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